瑞典专利SE1600058A1 Laying machine with additional functions

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专利摘要:
A machine (8) arranged for sawing the micro-ditch (1) and laying pipes / cables (2/3) in the micro-ditch (1), said machine (8) comprising a saw blade (14) arranged for sawing a micro-ditch (Uiett area, which area comprises an additional layer, said support machine (8) further comprising a stabilizing device (13) arranged for stabilizing said microdike (1) walls, said (13) inner part (18) being located immediately behind said mold (14) complementary to the shape of said saw blade (14), said stabilizing device (13) further comprising control means (17) for guiding at least one pipe / cable (2/3), when laid in said microdioc (1); said machine (8) is further characterized by water said members having two arranged devices. behind and parallel to said saw blade (14) and on each side of said micro-ditch (1), said sawing devices sawing through said saw; rsl stock in parallel with and at certain distances to and on the other side around the microdiocese (1).
公开号:SE1600058A1
申请号:SE1600058
申请日:2014-11-21
公开日:2016-05-22
发明作者:Conny Gustavsson；Eero Sormunen；Hasse Hultman
申请人:Dellcron Ab；
IPC主号:

专利说明:

TECHNICAL FIELD The present invention relates to a machine for sawing micro-ditches and laying pipes / cables in ditches. The invention relates in particular to a machine according to claim 1.
Background of the invention The method of sawing the micro-ditch so-called Micro Trenching is expected to be the dominant method for building F iber-To-The-Home (F TTl-l) in residential and townhouse areas. In Sweden, approximately 400,000 houses are expected to be connected to a ﬁ survey in the next 5 -10 years. The world market is huge and can be estimated at 100 - 500 times the Swedish market. This means that somewhere between 40 million and 200 million houses may be connected in the next 20 years.
When pipes and / or cables are to be laid in the micro ditch, a (road) sawing machine is used to saw the ditches where pipes / cables are to be laid.
SUMMARY OF THE INVENTION An object of the present invention is to provide a machine for sawing microdics and laying pipes / communication cables which completely or partially solves problems and disadvantages of known technology.
The above object is achieved with a machine arranged for sawing the micro-ditch and laying pipes / cables in the micro-ditch, said machine comprising: - a saw blade arranged for sawing a micro-ditch in an area, which area comprises a first layer L1 and a second layer L2, wherein said first layer L1 is a hard surface coating, such as asphalt or concrete and said second layer L2 is a support layer for said first layer L1 and located below said first layer L1; said machine being capable of sawing said micro-ditch through said first layer L1 and down into said second layer L2; a stabilizing device arranged for stabilizing the walls of said micro-ditch when laying pipes / cables in said micro-ditch, said stabilizing device having a front part and a rear part, said front part, when laying pipes / cables in said micro-ditch, being placed immediately behind said micro-ditch saw blade and comprising a shape complementary to or closely complementary to the shape of said saw blade; wherein said stabilizing device further comprises control means for controlling at least one pipe / cable when it is placed in said micro-ditch; said machine is further characterized in that said machine is arranged with two sawing devices placed behind and parallel to said saw blade and on each side of said micro-ditch, said sawing devices sawing through said first layer L1 parallel to and at certain distances to and on each side of said micro-ditch Embodiments of the machine according to the invention are defined in the appended dependent claims and are described in the following detailed description.
Other advantages and applications of the present invention will become apparent from the following detailed description of the invention.
Brief Description of the Figures The accompanying figures are intended to clarify and explain the present invention, in which; Figure 1 shows a ﬂ fate diagram for MTT; Figure 2 shows a fate diagram of an embodiment of MTT; Figures 3a and 3b schematically show a cross section of an area with a street / road with a micro-ditch 1.
Figure 4 schematically shows the cross-section of Figure 3, in which the micro-ditch 1 has been filled with a filling material 6 such as e.g. sand and sealed with two sealing layers.
Figure 5 shows a typical layout of an F TTH network Figure 6 shows how to saw branches to individual houses from a main micro-ditch 7. Figure 7 shows branches to individual houses if controlled drilling is used instead of sawing; Figure 8 shows a sawing machine 8 with its saw blade 14 and a stabilizing device 13 for laying pipes / cables 2/3 immediately behind the saw blade 14. Figure 9 shows a sawing machine 8 where the stabilizing device 13 is arranged to lay a number of tubes / cables 2/3 while maintaining arrangement of the tubes / cables2 / 3 in the microdicket 1 Figure l0 shows in detail where l5 the top tube 2 is to be cut so that it becomes long enough to reach its final destination; Figure 11 shows important surfaces for controlling the movement of the stabilizing device 13. The surfaces are arranged in a coordinate system originating in the center of the saw blade 14 and apply to all positions of the saw blade 14 and the stabilizing device 13 is either placed on the left or right side of the saw 8 or in front or behind the saw. Figure 11 also shows the coordinate system, originating in the center of the saw blade 14, used throughout this document.
Figures 12, 13 and 14 show examples of movements of the stabilizing device 13 according to the invention; where Figure 12 shows an example of a linear motion, Figure 13 shows an example of a pendulum motion and Figure 14 shows an example of a continuous motion, which contains the sub-elements: rotation and for displacement of the center of rotation in the x and y directions.
Figure 15 shows in detail the design of the attachment points for the link arms on the stabilizing device 13, so that the pipes 2 and cables 3 located in the guide means 17 are not to be destroyed when the stabilizing device 13 is rotated.
Figure 16 shows a micro-ditch 1 sawn with a pre-laying machine 8 with sawing devices which saw through the surface coating on both sides of the micro-ditch 1.
The picture shows the result after the surface coating between these two saw tracks has been removed.
Detailed Description of the Invention To solve the aforementioned and other problems, the present invention relates to a sawing machine 8 containing a saw blade 14 arranged to saw the microdick 1 in an area. The machine 8 further comprises a stabilizing device 13 arranged to stabilize the walls of the microdisk 1 when tubing / cables 2/3 are laid in the same. Furthermore, the stabilizing device 13 is placed immediately behind the saw blade 14 in the micro-ditch 1 and contains control means 17 for guiding at least one pipe / cable 2/3 when it is placed in the micro-ditch 1.
The saw blade 14 and associated stabilizing device 13 can be integrated with the sawing machine 8 and thus form a completely new machine type or designed as a 14 and the stabilizing device 13 can be located on the right or left side of the machine 8. additional unit that can be mounted on existing machines. The saw blade Other possible locations are in front of or behind the machine 8. The following description applies to all possible locations of the saw blade 14 and stabilizing device 13, the following description only talking about the relative position of the stabilizing device 13 in relation to the saw blade 14.
The saw blade 14 and the stabilizing device 13 can be individually raised and lowered between a highest position ("service position") and a lowest position ("working position").
The movement of the saw blade 14 between the two extreme positions can be vertical or close to vertical or performed with a rotational movement. This rotational movement can be effected by the saw blade 14 with its motor device fixed with a hinge at one end and a device at the other end. Thus, the saw blade 14 with the motor device can be raised and lowered with a rotational movement by means of the lifting device.
The movement of the stabilizing device 13 is more complicated. During its movement between the two extreme positions, the stabilizing device 13 must not come into contact with either the saw blade 14, the bottom of the micro-ditch 1 or the safety cover over the saw blade 14. Furthermore, since raising and lowering the stabilizing device 13 may be made while cables 3 and / or pipes 2 are in the control means 17 in the stabilizing device 13, the construction must ensure that there is sufficient space, and guarantee that the minimum permissible bending radius for pipes 2 and cables 3 can be kept within specified limits. In its highest position the stabilizing device 13 is completely ly ﬁ above ground level 10 and with some clearance to the ground 10 and also completely retracted and with some clearance behind (in the sawing direction) the safety cover over the saw blade 14. In its lowest position the stabilizing device 13 is at most 50 mm above the bottom of micro-ditch 1 and immediately behind the saw blade 14 at a distance of a maximum of 20 mm. This means that the movement of the stabilizing device 13 between its extreme positions means a movement in the x-direction of more than 0.8 * r, where r is the radius of the saw blade 14, and more than 0.8 * r in the y-direction.
The saw blade 14 wears during sawing and thus reduces its diameter. This means that the distance between the saw blade 14 and the stabilizing device 13 will increase over time. May cause the stabilizing device 13 to get stuck in the microdike 1. Therefore, the link arms transmitting must have become so large that rocks in the support bearing move to the stabilizing device 13 and their attachment points in the saw machine 8 be very secure. This is important because if the stabilizing device 13 gets stuck in the micro-ditch 1 for some reason considerable forces can be transmitted to the stabilizing device 13 and to it lifting device and to the fixed points in the sawing machine 8. To compensate for the wear of the saw blade 14 it is necessary to adjust the stabilizing device 13. on the saw blade 14. The adjustment can be implemented with rigging screws or similar devices or with dedicated motor devices.
The link arms for raising and lowering the stabilizing device 13 are driven by a motor device provided for this purpose (eg electric or hydraulic). Furthermore, a machine 8 with the saw blade 14 arranged on one side of the machine 8 can have quick fasteners and drive devices beyond the stabilizing device 13 and the saw blade 14 arranged on the left and right side of the machine 8 in the sawing direction 9. Thus, any of the left and right sides of the saw 8 can be used. for sawing and laying of pipes / cables 2/3. This may be necessary due to obstructive infrastructure, traffic situation in the area, etc.
According to various embodiments of the invention, the movement of the stabilizing device 13 between its two extreme positions can be performed with a linear or sequential linear movement, a single pendulum movement or a continuous or sequential movement, which contains sub-element rotation and for moving the center of rotation in x- and y-directions. Finally, the movement may be composed of a combination of two or three of the above-mentioned movements.
The movement of the stabilizing device 13 can be mechanically controlled by link arms fixed attachment points and driven by a single electric or hydraulic motor device or by a number of electric or hydraulic motor devices, controlled by a software in a computer.
Said linear movement may be along a straight line with an inclination of about 15 - 40 ° towards the ground plane10. Said sequential linear movement may be a near horizontal movement with 0 - 25 ° inclination towards the ground plane 10 when the stabilizing device 13 is close to its lowest position and a steeper movement or even a completely Vertical movement when the stabilizing device 13 has moved away from the saw blade 14. Figure 12 shows an example of a movement along a straight line.
Said pendulum movement has the advantage that it is easy to achieve and that it provides a strong construction. Area A + B in Figure 11 shows the possible locations of the center of rotation for a pendulum swing movement. Area B is less attractive because it is an area that needs the safety cover over the saw blade 14 and to lift the saw blade 14 to its service position. The most attractive area is area A. Area A is located above or above and the front saw blade 14 and its safety cover when the saw blade 14 has been raised to its service position. Figure 13 shows an example of a rigid pendulum movement with a center of rotation in area A.
A continuous movement of the stabilizing device 13 containing the sub-elements: rotation and for moving the center of rotation in the X- and y-direction can be effected using two link arms. The most attractive place for locating the attachment points for these links is area C (in Fig. 11) behind the safety cover of the saw blade 14 relative to the direction of travel 9. The movement of the stabilizer 13 between its two extreme positions is accomplished by rotating the stabilizer 13 and moving the center of rotation The center of rotation of the stabilizing device 13 is significantly the center of the saw blade 14 (point A in Figure 14) when the stabilizing device 13 and the saw blade 14 are close to their working positions and close to point B when the stabilizing device 13 is close to its service position. The displacement of the center of rotation can be continuous with the rotation or Sequential with the rotation i.e. only rotation when the stabilizing device 13 is the close working position, then one for moving the center of rotation and finally further only rotation.
Finally, the movement of the stabilizing device 13 between its two extreme positions may be composed of sub-elements of movements from two or ﬂ of previously mentioned movements. Examples of such composite movements are: Example 1: The stabilizing device 13 is lowered from its highest position (transport position) by single-linear straight-down movement (ﬁ gur 12), then it follows a pendulum movement (ﬁ gur 13) until the near saw blade 14 and finally it is rotated to its working position by a rotational movement (ﬁ gur 14) with the center of rotation near the center of the saw blade 14. The stabilizing device 13 is lifted with a reverse movement.
Example 2: The stabilizing device 13 is lowered from its highest position (transport position) by a pendulum movement (ﬁ gur 13) until it is close to the saw blade 14 and finally it is rotated to its working position by a rotational movement (ﬁ gur 14) with rotation center near the center of the saw blade 14. 13 lift with a reverse motion.
The saw blade 14 is in its highest position during transport, for example when the sawing machine 8 is moved to a new geographical location and a trench is not to be sawn during transport. The saw blade 14 is also in its highest position when the saw blade 14 is to be replaced. In this case, the stop stabilizing device 13 with all pipes / cables 2/3 remains in the micro ditch 1 so that micro ditching and laying of pipes / cables 2/3 can continue after the saw blade 14 has been replaced. During the replacement of the saw blade 14, the safety cover of the saw blade 14 is opened along its entire side so that the entire saw blade 14 becomes accessible.
The stabilizing device 13 is in its highest position during transport and during the time when pipes 2/3 2/3 are to be threaded in and at the start of installation by micro-digging. When the process of laying pipes / cables 2/3 at the same time as micro-digging is to be started, the first saw blade 14 is lowered to its working position and the sawing machine 8 is driven forward approximately 1-2 m so that there is room in the ditch to lower the stabilization device 13. There must also be space in the ditch an anchor that holds the tubes / cables 2/3 in place so that they are not pulled by the saw machine 8 when it starts to move forward.
In order to make it easier to thread in all pipes / cables 2/3, the stabilization device 13 can either be openable or the stabilization device 13 is provided with an opening bar cassette so that pipes / cables 2/3 can be easily laid down in their respective channels. An opening bar cassette that can be removed from and put back on the stabilizing device 13 saves time in some cases e.g. when micro-digging and laying of pipes / cables 2/3 is temporarily interrupted for some reason and later e.g. the next day should continue from the same place.
The detachable cassette can be attached to the stabilizing device 13 by means of a disposable pin with a detachable pin. Once the pin has been removed, the cassette can be easily removed. The cassette can also be left in the micro ditch 1 when the sawing machine 8 is to be moved to another location as follows: remove the hinge pin and drive the sawing machine 8 forward a few centimeters so that the stabilizer 13 without a cassette can be lifted. To put the cassette back on the stabilizer 13, perform the opposite operation.
Furthermore, the inventors have realized that the laying of pipes / cables 2/3 must be done before ditch sides collapse and before stones (or sand and earth) and especially stones larger than the width of the ditch are wedged into the sides of the ditch and prevent laying of pipes / cables 2 / 3 all the way down the bottom of the ditch. In this way, time (and money) is saved because the placement can be carried out without unnecessary interruptions.
Therefore, the present machine 8 is arranged to saw the micro-ditch 1 in an area. For this reason, the machine 8 contains a saw blade 14, preferably of circular shape, sawing the micro-ditch 1. The sawn micro-ditches 1 are adapted to receive pipes / cables 2/3, which means that the micro-ditches 1 have been given suitable dimensions.
The machine 8 also contains a stabilizing device 13 arranged for stabilizing the walls of the stabilizing microcircuit 1 when laying pipes / cables 2/3 and for this reason the stabilizing device 13 is placed immediately behind the saw blade 14 in the micro-ditch 1 so that the walls are stabilized until the pipes / cables 2/3 have been laid by means of control means 17 arranged on / in the stabilizing device 13.
For stabilizing the walls of the ditch, the stabilizing device 13 consists of suitable stabilizing parts such as e.g. suitable side elements arranged to stabilize the wall until its pipes / cables 2/3 are placed in the micro ditch 1. It is important that the stabilizing device 13 is placed immediately behind the saw blade 14 so that the ditch sawn with the saw blade 14 is stabilized immediately after it is sawn so that it does not collapses or stones or other objects fall into the ditch before pipes / cables 2/3 are laid. Therefore, according to an embodiment of the invention, the maximum permissible distance between the saw blade 14 and the stabilizing device 13 is greater than 0 mm but less than 20 mm. The dimensions of the stabilizing device 13 are determined by the size of the tubes / cables 2/3, the number of tubes / cables 2/3 to be laid simultaneously at the desired laying depth in the micro-ditch 1. However, the width of the stabilizing device 13 must be equal to or slightly smaller than the width of the saw blade 14.
Furthermore, in order to achieve a controlled and automatic laying of pipes / cables 2/3, the content stabilization device 13 also has control means 17 which guide the pipes / cables 2/3 down into the ditch in a controlled and orderly manner. The combination of stabilization and control has been shown to reduce cost and time in an efficient manner, since the process of sawing and laying pipes / cable 2/3 can be performed on / in the stabilization device 13 and therefore enables the invention that pipes / cables 2/3 can simultaneously . The guide means 17 are placed in the ditch at the same time as the ditch is stabilized by the stabilizing device 13. Pipes / cables 2/3 can thus be placed with high precision in the ditch (i.e. at the right height in the ditch) because the ditch is "clean" as long as the ditch is stabilized by the device.
The stabilizing device 13 can be made of any suitable hard material. The material should suitably be rigid, resistant and hard, but still flexible to withstand stresses during operation. The mounting of the stabilizing device 13 on the sawing machine8 must have a certain ﬂ flexibility to prevent damage if the stabilizing device 13 gets stuck. Steel or steel alloys are suitable because they can be given the right properties for alloys with other metals such as platinum and manganese. Since there is a limited space in the micro-dike 1, the walls of the stabilizer 13 must be as thin as possible to accommodate all the pipes / cables 2/3 to be laid, but still have the properties described above. A steel alloy with a hardness corresponding to 400 - 700 Brinell has proven to be suitable for this application. It has also been found that the stabilizing device 13 is edge-manufactured as a carbon rock casting. Parts of the stabilizing device 13 can be cast separately before mounting to a stabilizing device 13.
According to an embodiment of the invention, the stabilizing device 13 has an input and a single outlet for pipes / cables 2/3, the input and the output being connected to the control means 17.17 is 2/3 the stabilizing device 13. During operation the input is suitably above ground level 10 and the control means suitably channels through which pipes / cables are guided through vertically or close to vertically arranged while the outlet is underground in the ditch and horizontal counter close to horizontally arranged to minimize wear on the pipes / cables 2/3. Therefore, the minimum horizontal distance at ground level 10 between the outlet of the stabilizer 13 and the saw blade 14 is slightly longer than the minimum recommended bending radius for the duct pipes 2 and cables 3 to be laid, which means that this minimum distance depends on the minimum recommended bending radius for the pipes / cables 2/3. This normally means between 100 mm and 500 mm measured at ground level 10, but other distances are possible. In addition, input, output and control means 17 can together be detachably arranged on the stabilizing device 13, for example as a detachable cassette. By having the control means 17 in a detachable cassette, the installation time is shortened on certain occasions because the time-consuming task of threading 2/3 of many pipes / cables in their respective ducts can be avoided.
The inventors have also realized that the working depth of the stabilizing device 13 in the micro-ditch should be up to 50 mm less than the working depth of the saw blade 14 according to an embodiment of the invention. The difference in depth between the saw blade 14 and the stabilizing device 13, wide operation, determines how fast the ground level 10 can be changed. ie go down). The saw blade 14 must have sawn the trench so deep that the stabilizing device 13 does not touch the bottom of the trench, in order to avoid the possibility of the stabilizing device 13 getting stuck. This eliminates unnecessary cranes on the stabilizer 13 and the possibility of it being destroyed. This could happen if the ground level 10 quickly becomes much lower.
In addition, according to yet another embodiment of the invention, the stabilizing device 13 and the saw blade 14 have been arranged so that they can be raised and lowered independently of each other. This is an advantage when, for example, the saw blade 14 needs to be replaced due to wear or if another type of saw blade 14 is required (Lex. One type for asphalt and one for concrete). Furthermore, the stabilizing device 13 may need to be replaced and then this can easily be done if the two parts can be lowered and raised independently of each other. In addition, the saw blade 14 lifts at shorter interruptions during sawing, but then the stabilizing device 13 must remain in the micro-ditch 1, since the need for stabilizing the ditch remains.
Figure 9 shows an embodiment of a machine 8 according to the invention. The stabilizing device 13 has a front part 18 and a rear part 19, where the front part 18 is located immediately behind the saw blade 14. It can also be seen that the stabilizing device 13 has a section in its front part 18 which has a shape which is complementary to the shape of the saw blade 14. , which in this particular case is circular. In other words, in this case the section in the front part 18 has a concave circular shape, with the same or almost the same radius as the saw blade 14 and placed as close to the saw blade 14 as possible, at a distance less than 20 mm from the saw blade 14. The reason for this is that the part of the stabilizing device 13 which is underground must be placed so close to the saw blade 14 that it is impossible for soil, stones or other objects to collapse to the bottom of the ditch or be wedged between the sides of the ditch. The control means 17 in this embodiment are channels inside the stabilizing device 13. The channels are illustrated with dashed lines in the figures. The stabilizing device 13 can also be pointed / wedge-shaped in a cross section of the leading edge in the sawing direction.
The inventors have realized that if one wants a micro ditch 1 with a different geometry (eg another width and / or another dj up), the saw blade 14 and the stabilizing device 13 must be replaced. As previously mentioned, the stabilizing device 13 must have a complementary shape to the saw blade 14. Therefore, if the saw blade 14 is changed to another saw blade 14 with a different radius, the stabilizing device 13 must also be changed to one with a concave shape with almost the same radius.
When the saw blade 14 and the stabilizing device 13 are changed to those with other dimensions must link arms and / or their attachment points for tilting the stabilizing device 13 may change. This can be arranged by having adjusting screws or rigging screws on the link arms and / or by having alternative attachment points for the link arms prepared on the sawing machine 8.
Finally, when the diameter of the saw blade 14 changes, it may be necessary to change the safety cover over the saw blade 14. The inner shape of the cover is optimized to the shape of the saw blade 14 to maximize the removal of sawn material out through an opening in the front of the cover. This internal shape may need to be changed when the saw blade 14 is replaced with a diameter with a poor diameter in order to obtain optimal removal of sawn material.
As discussed above, the stabilizing device 13 preferably has a maximum width that is the same or slightly less than the width of the saw blade 14. The stabilizing device 13 must be wide enough so that there is room for the duct pipes / cables 2/3 to be laid, but narrow enough so that it can be pulled out into the sawn trench.
Another important aspect of the invention is that the channels of the guide means 17 make it possible to preserve a predetermined order of pipes / cables 2/3 when they are placed in the micro ditch 1. This is very important when ﬂ er than one pipe 2 is to be laid at the same time. In a pre-property connection scenario, a pipe / cable 2/3 is cut at a certain distance after the property has been passed. In order for this pipe / cable 2/3 to be easy to find, it is of the utmost importance that this pipe / cable 2/3 is found among the top pipes / cables 2/3 among the amount of pipes / cables 2/3 that are in the ditch. The pipe / cable 2/3 must be cut before it enters the stabilizer 13. Therefore, it is important to know which of all the pipes / cables 2/3 that enter the stabilizer 13, which comes out at the top of the ditch. In addition, since the color of the pipe / cable 2/3 for a certain house is often determined in advance, the pipes / cables 2/3 must ensure that pipes / cable 2/3 with the right color are cut to the right length for a certain house and are always found at most up into the ditch when that house has been passed.
A method that makes it possible to lay a number of pipes / cables 2/3 at the same time has a very large commercial value because the laying process can be carried out much faster than has previously been possible in the industry. According to this design of the invention, the stabilizing device 13 hardens a number of guide means 17, where each of the guide means 17 guides one or a few pipes / cables 2/3 out into the ditch. The stabilizing device 13 may, for example, contain a number of channels, arranged so that a known order is maintained, which means that the arrangement of pipes / cables 2/3 out of the stabilizing device 13 is known from the order of pipes / cables 2/3 into the stabilizing device 13, consequently the order is in in and out of the stabilizer 13 related to each other and known. This can e.g. is achieved by a one-to-one relationship between input and output of the device, which means that they do not cross each other. The arrangement of pipes / cables 2/3 must be arranged so that it is one of the top pipes / cables 2/3 among the amount of pipes / cables 2/3 in the ditch which is what is always branched off to the next destination. Therefore, the pipe / cable 2/3 that enters the rearmost entrance (calculated in the sawing direction 9) will be among the top pipes / cables 2/3 from the outlet and vice versa for the pipe / cable 2/3 that going into the entrance at the front will be among the lowest out of the exit. As shown in Figures 6 and 7, branches from the main ditch can be sawn before the main ditch is sawn or also after the main ditch has been sawn. It is decided from case to case in which order the ditches should be sawn so that you get the most effective ﬂ fate during the installation. Each branched micro-ditch goes from the main ditch 7 to an end destination for a certain pipe / cable 2/3. When the main ditch is sawn and the pipes / cables 2/3 are laid, the (which will be) the top pipe / cable 2/3 (before entering the stabilizer 13) is cut when the sawing machine 8 has reached a certain length 15 past the branch pre-branch micro-ditch, so that this pipe / cable 2/3 can be lifted from the main micro-ditch 7 and laid in the branch micro-ditch to its final destination, see figure 10. If the pipe / cable 2/3 is cut in the right place 15, it has a length that extends all the way to the final destination without having to be spliced. In the same way, one by one of the pipes / cables are branched 2/3 to each passed property.
Depending on the width of the ditch and the size of the pipes / cables 2/3, there may be one or 13 pipes / cables 2/3 side by side at the top of the main micro-ditch 7. It is important that the pipe / cable 2/3 is in turn branches to their final destination are always again among the top. To achieve this, in connection with sawing the main micro-ditch 7 and laying a number of pipes / cables 2/3, the pipe / cable 2/3, which will be one of the top pipes / cables 2/3, must be cut and to the next predetermined final destination, cut at a predetermined distance 15 after the location of the corresponding branch microdike has been passed, so that the pipe / cable 2/3 can then be lifted up and transferred to the branch microdike to itsTube / cable 2/3, branch microdike should be passed with a certain minimum distance 15 , so that the 2/3 length of the pipe / cable is the final destination. cut after the location of the equivalent is long enough without having to be spliced, when it is lifted from the main microdike 7 over to the branch microdike and up to its final destination.
If the stabilizing device 13 is constructed with individual channels for each tube / cable 2/3, or has channels, each of which has space for a smaller number of tubes / cables 2/3, it is easy to know which tube / cable 2/3 will to be found at the top of the micro-ditch 1 and thus also which pipe / cable 2/3 is to be cut before it goes down into the stabilizing device 13. An example of such a stabilizing device 13 is shown in figure 9. The stabilizing device 13 according to this embodiment has a pipe / cable 2/3 input and a pipe / cable 2/3 output, connected to each other by a plurality of channels, constituting guide means 17 (illustrated dashed lines) for pipes / cables 2/3. Under the ground of the stabilizing device 13, according to an embodiment of the invention, it contains a "matrix" (or vector) part, arranged in such a way that the channels are arranged in a matrix with n rows and m columns and can thus separate pipes / cables. 2/3 in a controlled manner, horizontally and / or vertically when placed in the micro ditch 1.
So to sum up: one by one, one of the top pipes / cables 2/3, the one intended for a certain final destination, is cut at a certain minimum distance 15 after the location of the corresponding branch microdike and then this pipe / cable 2/3 is lifted from the main micro-ditch 7 and is transferred to the branch microdike all the way to its final destination.
Furthermore, the sawing machine 8 can be provided with a device for holding at least one drum of tubes / cables 2/3 before they are placed in the micro-ditch I via the stabilizing device 13. In this way it is easy to access the tubes / cables 2/3. Furthermore, the machine 8 according to the invention may include other suitable devices such as; or ﬂ your motor devices for driving saw blade 14, stabilizing device 13 and / or propulsion devices (such as crawler feet or wheels), communication devices for wireless communication with for example an external server unit, computing units, memory units, sensors, GPS equipment, vehicles, display devices visa , reading device for reading coding devices on saw blades, immobilizer, etc.
Regarding the operation of the saw blade 14 and / or stabilizing device 13, this example can be done via direct mechanical operation, hydraulic drive ﬁ or electric operation. Mechanical drive gives the highest efficiency while electric drive gives the lowest efficiency, so the former is preferable if high power is needed, which is often the case.
Some road managers require that restoration and sealing of the micro-ditch 1 must be done with re-asphalting of up to 500 mm width. Therefore, one has to cut and remove up to 250mm of the surface coating L1 on each side of the micro ditch 1. This normally results in an additional costly and laborious step.
According to an embodiment of the present invention, the machine 8, which saws the micro-ditch 1 and lays pipes / cables 2/3, is arranged with sawing devices placed on each side of the micro-ditch 1. The sawing devices saw through the surface coating L1 parallel to and at a certain distance from the micro-ditch 1. This is done simultaneously as the machine 8 saws a micro-ditch 1 and laying pipes / cables 2/3 in this micro-ditch 1. The sawing devices are mounted on the machine 8 with adjustable devices so that the distance from the micro-ditch 1 can be varied between 0-250 mm.The saw depth of the sawing devices can also be adjusted with suitable devices between 0-150mm. Afterwards, the surface coating between the saw grooves can be easily removed. Figure 16 shows a cross section of a micro-ditch 1 sawn by a laying machine 8 with activated sawing devices on both sides of the micro-ditch 1, after removal of the surface coating between the saw grooves.
During transport of the machine 8, the sawing devices can be lifted completely above ground 10. The sawing devices can be provided with support wheels in order to be able to shield the ground level 10 during sawing and thus be able to saw to a certain depth up below the surface.
Each of the two sawing devices is driven by its own motor device. Both sawing devices can be raised and lowered independently of the saw blade 14 and stabilizing device 13. Each of the sawing devices has a protective cover and can be provided with a diamond saw blade. The sawing devices are mounted on the machine 8 on each side of the micro-ditch 1, parallel to and behind the saw blade 14 which saws the micro-ditch 1.
The inventors have also realized that there may be a need for a sword-shaped saw blade with a single-saw chain or saw wire, which is driven around this sword-saw blade by a motor device. Such a saw blade with associated saw chain / saw wire can be used for sawing through the surface coating L1 and down into the underlying support layer L2 and then replaces a circular saw blade14.
The saw surface of the saw chain / saw wire has in suitable places segments / beads with baked-in diamonds with the same sawing properties as with a circular diamond saw blade 14 and in the same way as with a circular saw blade 14 a stabilizing device 13 with guide means 17 tubes / cables 2/3 directly behind and so close to the bar saw blade as possible. The front part 18 of the stabilizing device 13 has in both cases a shape which is complementary to the shape of the respective saw blade 14.
As a complement to the machine's 8 wheels, the machine 8 can also be provided with caterpillar feet / belt upper wheels. Such law feet / belts can be regarded as a "separate piece of road", which the machine 8 rolls under. The machine's 8 wheels are therefore always driven on "good road". In addition, the area of the belt is very large compared to the wheel and thus the ground pressure is spread out and therefore becomes a very low unit of area.
The inventors have also realized that there may be a need for the saw blade 14 and stabilizing device 13, with maintained relative relative positions, to be able to move forwards or backwards in the sawing direction 9 even though the machine 8 is stationary. This can be important, for example the proximity machine 8 is located at an obstacle, which can be a wall, wall, pit, grass surface, pavement or something else that obstructs the machine 8. With this function, saw blade 14 and stabilization device 13 can saw and lay pipes / cables together. 2/3 up to 2000 mm despite the machine 8 standing still. This function makes it possible to saw all the way to or from an obstacle. 16 Raising and lowering as well as the above-described horizontal movements of the saw blade 14 and stabilizing device 13 with stationary machine 8 are controlled by one or more specially adapted motors, drive means and movable shafts.
Example 1: Sawing up to an obstacle in front of the machine 8. The machine 8 saws and laying pipes / cables 2/3 as far as possible up to the obstacle with saw blade 14 and stabilizing device 13 in their normal positions during sawing / laying. At the obstacle, the machine 8 is stopped and then stands completely still while the saw blade 14 and stabilization device 13 are allowed to saw and lay pipes / cables 2/3 all the way to the obstacle.
Then both the saw blade 14 and the stabilizing device 13 are lifted up to their highest positions.
Example 2: Start of sawing from an obstacle behind the machine 8. With saw blade 14 and stabilizer 13 lift above ground 10, machine 8 is backed as close to the obstacle as possible and with stationary machine 8 dries såg saw blade 14 and stabilizer 13 as far back on machine 8 as possible. Then the saw blade 14 is lowered to saw depth and allowed to saw forward with initially stationary machine 8 a sufficiently long distance so that stabilizing device 13 with pipes / cables 2/3 can be lowered into the micro ditch 1. Then the driving machine 8 forward in the normal way with saw blade 14 and stabilizing device 13 in their normal positions when sawing / laying.
Micro Iïenching Technique (M T I) An in-depth knowledge of the MTT method may be warranted. Figure 1 shows a fate diagram for an MTT method for laying at least one pipe / cable 2/3 under a road surface in one area containing the steps: - Sawing a micro-ditch 1 in an area through the first layer L1 into the second layer L2; Laying of at least one pipe / cable 2/3 in the micro-ditch 1 in such a way that this at least one pipe / cable 2/3 is placed under the first layer L1; and- Backfilling the micro ditch 1 to restore the road surface.
Figures 3a and 3b schematically show a cross section of an area where duct pipes 2 are located in the micro-ditch 1. The area in Figures 3a and 3b is a three-dimensional section of a typical 17 road area, wherein the area contains a first layer L1 which is a road surface or for example asphalt or concrete and a second layer L2 which is a base layer for the first layer L1 and which normally consists of macadam, sand and soil. As shown in Figure 3, the second layer L2 is naturally located below the first layer L1.
The step of sawing includes: Sawing the micro-ditch 1 through the first layer L1 into the second layer L2, which means that the micro-ditch 1 is sawn in the manner shown in Figures 3a and 3b. The micro-ditch 1 is sawn so deep that at least one pipe / cable 2/3 can be placed in the micro-ditch 1 under the first layer L1 (ie all installed pipes / cables 2/3 are placed under the first layer L1). With the present method, all pipes 2 and cables 3 required in a fiber optic network can be laid so deep that they are protected even if the road surface L1 is removed or replaced, for example when the road is repaired.
Then at least one pipe 2 and / or communication cable 3 is placed in the micro-ditch 1. The pipe 2 is a pipe arranged to blow in “blow fiber” (so-called EPFU) or support cables. The tube (s) 2 and / or the communication cable / cables 3 are placed in the micro-ditch 1 so that they are completely located under the first layer L1.
Finally, the micro-ditch 1 is filled with a suitable filling material 6 to restore the road body. The backfill material 6 consists of sand or other material with suitable properties. A filling material 6, which is surface at the time of filling and which later cures and has a high resistance to compression forces, is a filling material 6 to be preferred. The micro-ditch 1 is filled with the filling material 6 to a suitable level, and if necessary is compacted with a ground vibrator adapted for the width w of the micro-ditch 1.
Finally, the micro-ditch 1 is sealed with a sealing material, such as bitumen, to maintain a waterproof seal. If a waterproof seal is not required, repair can also be done with cold asphalt, which is a simple and inexpensive method of restoration. A suitable amount of cold asphalt is simply poured over and scraped into the micro ditch 1 and then compacted to a smooth and hard surface. Any excess asphalt can then be collected and removed.
The step of sealing may, according to a preferred embodiment, include the steps of: - Sealing the micro-ditch 1 flush with the bottom 5 of the first layer L1 with a first 18 seal S1; and- Sealing of the micro-ditch 1 is flush with the top 4 of the first layer L1 with a second seal S2.
Figure 4 shows the embodiment described above. The top 4 and bottom 5 of the first layer are shown in Figure 4. To obtain a seal with good adhesion, it is recommended to pour hot bitumen or a bitumen mixture to seal the micro-ditch 1. Other materials such as concrete or polymer-modified bitumen also work.
The first seal S1 seals the micro-ditch 1 iron with the bottom 5 of the first layer L1, so that the micro-ditch 1 can then be washed with a high-pressure washer to remove residues of sand from the asphalt / concrete edges. After washing, the micro-ditch 1 can be dried and preheated by means of a propane burner and finally the micro-ditch 1 is filled with the top 4 of the first layer L1 with a teachable sealing material such as a material based on hot bitumen and intended for cracking in asphalt.
According to a further embodiment, the micro-ditch 1 is sawn with a machine 8 whose saw blade 14 is diamond-clad. Such a diamond-coated saw blade 14 easily saws through the hardest materials such as stone or concrete and has proven to be very suitable for this application as the edges of the micro-ditch 1 become exceptionally straight, clean and easy to repair. Previous methods of making microdiken 1 such as e.g. using a saw blade with cemented carbide teeth such as tungsten carbide creates amounts of small cracks in the edges of the sawn microdike 1 and which makes complete sealing significantly more difficult and expensive compared to the present method.
Microdike 1 is preferably sawn with a modified so-called road saw (saw machine 8) with diamond-clad saw blade 14. To further optimize and improve the road saw's performance in this application, the inventors have realized that one or more of the following improvements are usable and should be considered embodiments: Saw blade 14 to so-called “up-cut” for improved removal of sawn material; 0 Modified cover over the saw blade 14 and a front outlet to optimize removal of sawn material and to reduce the spread of dust particles and to leave the micro-ditch 1 clean and ready for placement of pipes / cables 2/3; Stabilization device 13 according to Figures 8 and 9 with one or ﬂ your guide means 17 for pipes / cables 2/3 mounted directly after the saw blade 14 so that micro ditching and placement 2/3 can the fall stabilization device 13 has guide means 17 for a ﬂ number of pipes / cables 2/3 shall these of pipes / cables take place in a coherent process. The control means 17 are arranged so that the outputs of the stabilizing device 13 are placed one above the other in such a way that the order of pipes / cables 2/3 from the entrance into the stabilizing device 13 and out into the micro-ditch 1 is maintained; v Drum trolley pulled by the road saw with holder for drums for pipes / cables 2/3, intermingling tape and search wire 0 Servo controlled by sensor to automatically hold the saw blade 14 vertically on uneven ground. (eg one side drive devices (wheels or caterpillar feet) on the pavement and other side drive devices on the road). Sensor for temperature monitoring of the saw blade 14, which automatically adds mercury water if the temperature of the saw blade 14 increases or decreases the rotational speed. Cooling water is added near the center of the saw blade 14 and on both its sides.
In Gearbox so that the peripheral speed of the saw blade 14 can be kept constant when changing the diameter of the saw blade 14.
Figure 8 shows an embodiment of a sawing machine 8 containing a pre-cut saw blade 14 arranged. Up-cut is defined as the direction of rotation of the saw blade 14 relative to the sawing direction shown in Figure 8. All known sawing machines 8 have the opposite direction of rotation. Changing the direction of rotation of the saw blade 14 to up-cut helps to remove sawn material from the micro ditch 1 and thus provides a "pure" microdike l.
Furthermore, the sawing machine 8 is equipped with a stabilizing device 13, mounted directly in the rear saw blade 14, where the stabilizing device 13 has at least one guide member 17, such as e.g. ducts for guiding pipes / cable 2/3 when they are placed in the micro-ditch 1 directly next to the saw blade 14. In the fallen number of pipes / cables 2/3 are laid at the same time, the stabilizing device 13 is designed so that the arrangement of pipes / cables 2/3 is maintained. This can be achieved by having individual channels of tubes / cables 2/3 in the stabilizing device 13 so that the order of the tubes / cables 2/3 is maintained through the stabilizing device 13. This makes it possible, before the tubes / cables 2/3 enter the stabilizing device 13, to identify which pipe / cable 2/3 will come out at the top of the micro ditch 1 and in this way make it possible to know which pipe / cable 2/3 is to be cut for each final destination. See Figure 10.
According to one design, the depth d of the micro ditch 1 should be greater than the depth of the first layer d1 plus the height d2 of at least one pipe 2 or at least one communication cable 3, i.e. d> d] + d2 which means that the depth d of the micro-ditch 1 is greater than the height of the first layer d] plus the total height of one or ﬂ your pipes 2 and / or communication cables 3.
As shown in Figures 3a, 3b, and 4, the above relationship applies.
However, the cost of sawing a micro-ditch 1 increases with increasing depth d. Therefore, the micro-ditch 1 should not be deeper than necessary. Normal depth up for the micro ditch 1 can be approx. 400 mm, but unlike the width w of the micro ditch 1, the depth d o ﬁ a can be adjusted continuously during operation. The saw depth can therefore be reduced gradually as the number of tubes / cables 2/3 laid in the micro ditch 1 decreases.
In addition, the micro-ditch 1 should not be wider than necessary as a wider micro-ditch 1 entails higher costs compared to a narrower micro-ditch 1. On the other hand, a narrower micro-ditch 1 can make it more difficult to lay pipes / cables 2/3 so that there is an optimal width of the micro-ditch 1 , e ﬁ as if, for example, if the micro ditch 1 is too narrow, all pipes / cables 2/3 are stacked on top of each other so that the depth to the top pipe / cable 2/3 from the ground level 10 can become too shallow.
Based on the above discussion, the inventors have through tests come to the appropriate dimensions of a micro-ditch 1 should be a depth up between 200 - 500 mm (and preferably 300 - 500 mm) and a width w between 10 - 30 mm (and preferably 15 - 25 mm) according to one version optimized for installation efficiency and low cost. Furthermore, these dimensions minimize traction disturbances, as traction can pass over an open microdike l.
Furthermore, according to another embodiment and with reference to the ﬂ fate diagram in ﬁ gur 2, the content method of laying at least one pipe / cable 2/3 follows the following steps: - Scanning of an area using ground radar; and- Identification of obstacles in the area by analyzing data from this ground radar - Sawing of a micro-ditch 1 in the area through the first layer L1 and down into the second 21 layer L2- Laying of at least one pipe / cable 2/3 in the micro-ditch 1 so that at least one pipe / cable 2/3 is placed under the first layer L1; and - Backfilling the micro ditch 1 to restore the road surface.
It should be noted that according to this embodiment, the steps of scanning and identification are performed before the other steps.
According to this embodiment, the area is scanned by means of a ground penetrating radar unit, such as a ground radar / GEO radar or other suitable equipment.
Then, with the help of the information from the ground penetration radar unit, possible grounded obstacles in the area are identified, such as drain pipes, electrical and telecommunications cables, grounded structures, etc. The steps with scanning and identification involved when performing the subsequent step of sawing can avoid unintentional cutting / damage to existing infrastructure in the area, which would otherwise result in delays and extra costs in the micro-digging process. After sawing a micro-ditch 1 in the scanned area, at least one pipe 2 and / or communication cable 3 is placed in the micro-ditch 1. Finally, the micro-ditch 1 is filled with suitable materials so that the road surface is restored.
The method may also comprise the step: Installation or blowing of fiber or cable in one or two of the pipes 2, if duct pipes have been placed in the micro-ditch 1.
It should also be noted that the method described above may also include the step: Making one or more branch points connected to the micro ditch 1. Preferably, the branch point is made by means of a diamond-clad core drill or with a hand-held saw machine 8 with diamond-clad chain or saw blade 14. In this embodiment, the method may also include the further step of drilling one or more channels from the branch points to one or more eras properties using controlled drilling. It is important that the channels are drilled under the first layer L1 into the second layer L2. Pipes / cables 2/3 are then installed in these ducts when drilling back.
The following description sheds light on various aspects regarding the placement and design of the 22 microdives 1, branch points and channels as well as strategies regarding cutting, branching, etc. in relation to and included in the present method.
Layout Figure 5 shows a typical logical structure of a Fiber-To-Home (FTTH) network in a residential area, where D is a distribution node and F is a splice point where larger fiber cables are spliced to smaller (or in the case of a distributed PON network (Passive Optical Network) ) a place where optical splitters are located). The network between the distribution node D and the splice point F is called the distribution network and the network between the splice point F and individual properties is called the access network. Sewer pipes / cables 2/3 for both distribution and access networks can be installed with the present method.
A residential area to be built with FTTH is normally divided into a number of smaller sub-areas. Somewhere in or outside the residential area there must be a place, which rabbit houses the optical panels and the electronics needed for the distribution node D. The distribution node D can be located in a small property, in its own small new building or in a large ground cabinet. Each distribution node D can contain electronics and opt professional panels for between a few hundred households up to ﬂ your thousand households. The size of the area to be connected to an individual distribution node D can be adapted within wide limits and depends primarily on practical considerations, such as space in the node D, difficulties in handling a number of small distribution nodes D, etc. The present method can also be adapted for any desired number of fibers. per household.
There are two main types of FTTH networks: Point to point and point to multipoint. In a so-called point-to-point network, the distribution node D contains the other end of all the ﬁ letters that have started in each individual household in the residential area. For example, if a power supply area with 500 households is dimensioned for 2 fibers per connection, this means that 1000 fibers enter the distribution node D. The distribution node D should be centrally located in the area to be built, as shown in Figure 5.
The design of a point-to-multipoint network or so-called Passive Optical Network (PON) is more or less the same. The difference is that the number of incoming fibers to the distribution node D, in this case, corresponds to the number of households divided by a factor (for example 8, 16, 32, etc. 23 depending on the selected splitter type). The examples in the further discussion are based on the construction of a point-to-point network. However, the described methods can also be applied to a PON network, only the distribution cables are scaled down to a corresponding degree.
Seen from the distribution node D, distribution cables are laid out to splice points F, placed in wells or in ground cabinets. The distribution cables are normally dimensioned for the number of households in the area plus 10% in reserve, so that future, newly built properties can easily be connected to the network. In a point-to-point network, where for example a splice point F comprises an area of 22 properties and the requirement is 2 fibers per property, 48 fibers from the distribution cable are required. Fibers from the distribution cables are spliced in the splice points F to ﬁs from the access cables.
These access cables then go on to each individual property, which must be connected.
How many properties a junction point F is to supply depends mainly on financial considerations. If the area is too large, the average length of the access cables to each property increases, which increases the cost. On the other hand, if the area is too small, the cost increases perfastness due to its share in the joint point F and its distribution cable. Consequently, there is an optimal size for a residential area where the cost is minimized. The number of properties, which gives this cost minimum, depends mainly on the topography of the area and on the size of the properties' plots of land, but a rule of thumb may be that an optimal number of properties, connected to a junction F, is often somewhere between 16 - 48.
If sawing of the micro-ditch 1 is carried out with a sawing machine 8 according to an embodiment of the invention, the joint point F should be placed centrally in each sub-area of the residential area, for example 22 properties. The joint point F can be physically located in a ground cabinet by the roadside edge or in a cable well. Typically, then 10 - 12 duct pipes 2 should go from the ground cabinet or cable well in each direction along the road. Each of these duct pipes 2 then connects one of the properties 22 of the area. Finally, access cables are blown into each duct pipe 2.
Strategy for sawing Usually residential areas have properties on both sides of a road and the property connections can then be made in two different ways: Either you saw on both sides of road 24 and connect the properties via the nearest microdike 1 or you only saw on one side of the road alternatively in the middle of the road and connecting properties from both sides of the road viadetta only mikmdike l.
However, in order to minimize the number of sawn micro-ditches 1 crossing the road, according to one embodiment, crossings are made to the opposite side of the road to the plot boundary between two properties. Thereafter, duct pipes 2 are placed in the micro-ditch 1 to each of the two properties. In this way, only a microdike l is needed that crosses the road for every other property on the opposite side of the road. This is a cheap and cost effective method to connect all the houses in an area.
Branching from the main microdike 7 Branches from a main microdike 7 (a main microdike 7 is defined as a microdike1 along a road) can be performed in a number of different ways. The branches can be sawn either before, as shown in Figure 6, or after the main microditch 7 has been sawn. In order to get a large bending radius of the duct pipe 2 out into the branch, both methods are best performed at an angle corresponding to approx. 45 ° from the main micro-ditch 7. The branch micro-ducts can either cross the main micro-duct 7 or end flush with the main micro-duct 7. is shown in figure 10 and ﬁ gur 6, it is easy to lift one of the uppermost ducting pipes 2 one by one to each of the branch microdics and further to the respective property.
An alternative branching method is to first drill a hole at each branching point with the aid of a core drill, with a suitable dimension. The main microdike 7 can then be sawn through all of these holes as described above and shown in Figure 7. This method is suitable both for making the property connections with the microdike 1 sawn according to the method described above and also when property connections are made by means of controlled drilling.
An alternative method of making branches is to first drill a hole at each branch point. The holes can be made with a core drill of suitable dimension (for a round hole) or with a hand-held tool with a diamond-clad saw blade 14 or chain (for a rectangular hole). can then be sawn through all these holes in the same way as described above and is shown in Figure 7. This method is useful both when the branch microdics for property connections are sawn according to the method described above or when property branches are performed with so-called controlled drilling. Guided drilling is sometimes preferable when making property connections because you then avoid (go under) obstacles such as (support) walls, fences, hedges, trees, etc. On the other hand, this means that another expensive machine (for controlled drilling) is required at the installation site.
Finally, it should be understood that the present invention is not limited to the embodiments set forth above but also relates to and includes all embodiments within the scope of the appended independent claims.

权利要求:
Claims (12)
[1]
A machine (8) arranged for sawing the micro-ditch (1) and laying pipes / cables (2/3) in the micro-ditch (1), said machine (8) comprising: - a saw blade (14) arranged for sawing a micro-ditch (1) in an area, which area comprises a first layer (L1) and a second layer (L2), said first layer (L1) being a hard surface coating, such as asphalt or concrete, and said second layer (L2) being a base layer for said first layer (L1) and located below said first layer (L1); said machine (8) sawing said micro-ditch (1) through said first layer (L1) and down into said second layer (L2) and there laying said pipe / cables (2,3) completely below said first layer (L1); stabilizing device (13) arranged for stabilizing the walls of said micro-ditch (1) when laying pipes / cables (2/3) in said micro-ditch (1), said destabilizing device (13) having a front part (18) and a rear (19) part, said front part (18), when laying pipes / cables (2/3) in said micro-ditch (1), is located behind said saw blade (14) and comprising a shape which is substantially complementary to the shape of said saw blade (14); wherein said stabilizing device (13) further comprises control means (17) for controlling at least one pipe / cable (2/3) when placed in said micro-ditch (1); furthermore, said machine (8) is characterized in that said saw blade (14) of said machine (8) and said stabilizing device (13) are arranged to be able to move horizontally forwards and backwards between a front position and a rearmost position during sawing and laying, on said machine (8), with maintained relative relative positions, so that sawing and laying of pipes / cables (2/3) can be performed between said positions with stationary machine (8).
[2]
A machine (8) according to claim 1, wherein said saw blade (14) and said stabilizing device (13) are arranged to be able to move between said front and said rearmost positions with said saw blade (14) and said stabilizing device (13) lifting above ground.
[3]
A machine (8) according to claim 2, wherein said saw blade (14) is arranged to be able to lower to its operating position while said stabilizing device (13) is lifted above ground.
[4]
A machine (8) according to claim 3, wherein said stabilizing device (13) is arranged to be able to be lowered to its operating position while said saw blade (14) is in its operating position.
[5]
Machine (8) according to claim 1 or 4, wherein said saw blade (14) and said stabilizing device (13) are arranged to saw and lay pipes / cables (2/3) with stationary machine (8) up to 2000 mm.
[6]
A machine (8) according to claim 1, 4 or 5, wherein said movement of said saw blade (14) and said stabilizing device (13) between said front position and said rearmost position is performed with one or more dedicated motor devices.
[7]
A machine according to any one of the preceding claims; said saw blade (14) being circular.
[8]
A machine (8) according to any one of claims 1-6; wherein said saw blade (14) for sawing said micro-ditch (1) is sword-shaped.
[9]
A machine (8) according to claim 8; said sword-shaped saw blade (14) comprising a saw chain with segments containing diamonds.
[10]
A machine (8) according to claim 8; said sword-shaped saw blade (14) comprising a wire threaded through beads containing diamonds.
[11]
A machine (8) according to claim 9 or 10; wherein said chain or said wire is driven by a motor device.
[12]
A machine (8) according to any one of the preceding claims; wherein said machine (8) comprises caterpillar feet / belts over at least two of the wheels (8) of the machine (8) on each left and right side in the sawing direction, respectively.

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同族专利:

公开号 | 公开日

SE539815C2|2017-12-05|

引用文献:

公开号 | 申请日 | 公开日 | 申请人 | 专利标题

法律状态:
2019-07-02| NUG| Patent has lapsed|

2020-03-17| CANC| Patent cancelled, revoked after opposition|

优先权:

申请号 | 申请日 | 专利标题

SE1600058A|SE539815C2|2014-11-21|2014-11-21|Machine arranged for sawing and laying of pipes / cables in the micro-ditch|SE1600058A| SE539815C2|2014-11-21|2014-11-21|Machine arranged for sawing and laying of pipes / cables in the micro-ditch|

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