• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A compacting machine, such as a vibrating trench roll, includes an additional receiver, such as an eye, generally located in the center of the machine and in a common receiving area of another receiver on the machine. The eye can receive a signal that can not reach another receiver of the machine, which prevents the machine from stopping when it passes under an obstruction and eliminates the need for the operator to repositioning to restore communication with the machine. The additional receiver may be positioned to maximize the range of operation of the remote control while reducing or avoiding false signals resulting from signal reflection. This positioning may include providing a shield around the additional receiver by creating a geometric umbrella of receiving capability forming a protection zone beneath it. The signals transmitted in the protection zone can not reach the additional receiver.
    公开号:FR3028270A1
    申请号:FR1560658
    申请日:2015-11-06
    公开日:2016-05-13
    发明作者:Daniel Geier；David Schulenberg
    申请人:Wacker Neuson Production Americas LLC；
    IPC主号:
    专利说明:

    [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to remote controlled compacting machines, such as trench rollers, and more particularly to a compacting machine with improved remote control capabilities. and a method of operating such a machine. 2. Discussion of the Related Art [0002] Compaction machines are used in a variety of soil compaction and soil leveling applications. Most compaction machines have supports in the form of plates or rollers which rest on the surface to be compacted, and most of these supports are excited to vibrate in order to compact and level a work surface. These machines are commonly referred to as "vibratory compactors". [0003] A current vibratory compactor, to which the invention is well adapted, is a vibrating trench roll. The typical vibrating trench roll comprises a frame supported on the surface to be compacted by front and rear rotating drum assemblies. Each drum unit supports a respective subframe of the chassis. In the case of an articulated trench roll, the subframes are coupled to each other by a pivot connection. Each of the drum assemblies may comprise a stationary axle housing 3028270 and a drum which is mounted on the axle housing and which is driven to rotate by a dedicated hydraulic motor. Hydraulic motors are generally supplied with pressurized hydraulic fluid by a pump that can be powered by a motor mounted on one of the subframes. Each drum can be energized to vibrate by a dedicated exciter assembly that is located at the interior of the associated sub-frame and is actuated by a motor connected to a pump. Each exciter assembly generally comprises one or more eccentric masses mounted on a rotating shaft positioned within the sub-frame. Rotation of the eccentric shaft applies vibration to the subframe and to the rest of the drum assembly. The entire machine can be configured to be as narrow as possible to allow the machine to operate in a trench whose soil needs to be compacted. Machine widths less than 3 feet (1 meter) are common. Vibrating trench rollers of this type of base are disclosed, for example in US Pat. Nos. 4,732,507 to Artzberger; No. 4,793,735 to Paukert; No. 5,082,396 to Polacek; No. 7,059,802 to Geier et al. ; and 8,585,317 to Sina, which are expressly incorporated herein in their entirety by way of reference. [0005] Vibrating trench rollers are often remotely controlled using a transmitter on a remote control that transmits infrared (IR) or other signals to the line of sight trench roll. The control signal is generated by manipulation of a joystick and / or other controls on the remote control and controls operation of the machine. The IR signal is received by a receiver in the form of a photodetector or "eye" on the machine, causing the machine to stop moving or moving in the desired direction (forward or reverse). back) and / or to control the exciter assemblies of the machine. Two IR signals can be transmitted simultaneously, namely a relatively high intensity control signal having a range of about 50 to 65 feet (15 to 20 meters) and a relatively low intensity safety signal having a range of about 6.6 feet (2 meters). The safety signal is generated when the remote control 15 is active and it causes the machine to stop moving when receiving the safety signal. The machine thus stops moving if the operator is located in a "safety zone" which is generally 6.6 feet (2 meters) or less from the machine. [0006] Trench rollers are often used in trenches with reinforced sidewalls. For example, with reference to FIG. 1, a vibrating trench roll or a "machine" 10 can be used to compact the soil 14 of a trench 12. Reinforcement or "trench consolidation" often takes the form of vertical reinforcing plates or walls 16 located along each sidewall of the trench 12 and a number of spaced-apart cross supports 18 extending laterally between the sidewalls near the upper edge 20 of the trench 12. The machine 10 is generally controlled by an operator positioned above the trench 12 via a portable remote control 22. The remote control 22 transmits an IR signal 24 which propagates in an expansion arc until it reaches the machine 10, where it is detected by one of two eyes 26 and 28 located at opposite ends of the machine 10. Each eye 26 or 28 faces the rear or the front of the machine 10 and often it can not receive signals from an operator standing beyond the opposite end of the machine. Thus, each eye 26 or 28 can be considered to be associated with its own dedicated "receiving zone". This means that in many operating conditions, only one eye 26 or 28 can receive signals 24 from the remote control 22 at a given time. The crossed supports 18 located between the remote control 22 and the machine 10 can block a portion of the signals 24, creating a "dead zone" formed by a "shadow" located downstream of the crossed support 18 in the direction of propagation of the IR signals. The dead zone is delimited by the line 30 in FIG. 1. The machine 10 stops when the operational eye (the rear eye 28 in the illustrated example) is positioned. in the dead zone and suffers a loss of signal forcing the operator to reposition the remote control 22 at a location allowing the eye 28 to receive a signal. The need for repositioning may be inconvenient for the operator, particularly if he is on another machine, such as an excavator, and whether he has to move the machine or descend to reposition the remote control 22. [0008] It is necessary to provide a remotely controlled vibrating trench roll or other remotely controlled compaction machine that does not experience a loss of signal when the machine passes under an obstruction or behind an obstruction as a cross support of a consolidated trench. [0009] It is also necessary to provide a method of operating such a compaction machine. SUMMARY OF THE INVENTION [0010] In accordance with one aspect of the invention, a compaction machine 15, such as a vibrating trench roll, is provided with an additional receiver, such as a photodetector, located generally centrally on the machine. . It may be located in a common receiving area of another receiver on the machine.
    [0002] The additional receiver can receive a signal from a remote control whose signal does not reach one or more other receivers of the machine, which prevents the machine from stopping when it passes under an obstruction or behind an obstruction, as a cross support of a trench consolidation system. The additional receiver eliminates the need for the operator to reposition himself to restore communications with the machine. In one possible implementation, the machine 30 comprises a mobile frame, a compacting device on which the mobile frame is mounted and which compact the surface on which the machine is supported, and first and second receivers configured to receive simultaneously a line of sight signal from the same remote control, so that one of the receivers continues to receive the signal if a signal path to the other receiver is blocked by an obstruction. The first receiver of this configuration may be supported on the frame near a first longitudinal end of the machine, and the second receiver may be supported on the frame near a longitudinal center of the machine. A third receiver may be supported on the frame near a second longitudinal end of the machine opposite the first longitudinal end. The second receiver is located in a first common reception area with the first receiver and in a second common reception area with the third receiver. The additional receiver can be positioned to maximize the range of operation of the remote control while reducing or avoiding the reception of false activation signals that might otherwise occur due to signal reflection from for example an operator located near the machine. This positioning may include providing a shield around the additional receiver which creates a geometric umbrella of receiving capability forming a protection zone beneath it. Signals transmitted from within the protection zone can not reach the receiver. For example, the shield may comprise a recess in a portion of the hood in which the second receiver is mounted and / or a shield which is located laterally between the second receiver and an edge of the recess and which extends above a base of the recess. [0015] There is also provided a method of operating a compacting machine comprising simultaneously transmitting a control signal from a remote control and to first and second spaced apart receivers in a common receiving area on a a compacting machine so that if the transmission of the control signal to one of the receivers is blocked by an obstruction, the control signal is always received by the other receiver. The first and second receivers may be respectively located near a front end of the machine and in a central portion of the machine, and the compaction machine may further comprise a third receiver located near a machine. second end of the machine. In this case, the transmission step causes the signal to reach one of the first and second receivers in a first receiving area or the second and third receivers in a second receiving area in the absence of an obstruction. . An additional step may include blocking the reception of control signals on the second receiver into a protection zone below a reception capacity geometric umbrella extending around the second receiver. These features and advantages as well as other features and advantages of the invention will become apparent to those skilled in the art from the detailed description below with reference to the accompanying drawings. Nevertheless, it should be understood that the detailed description and specific examples, while indicating preferred embodiments of the present invention, are presented by way of illustration and not limitation. Many changes and modifications can be made within the scope of the present invention without departing from the spirit thereof, and the invention includes all such modifications. BRIEF DESCRIPTION OF THE DRAWINGS [0019] Exemplary embodiments of the invention are illustrated in the accompanying drawings in which like reference numerals represent like parts throughout the illustrations, and in which: [0020] FIG. schematic side elevational view of a trench in which a vibrating trench roll of the prior art is positioned and is appropriately labeled "prior art"; Figure 2 is an isometric view of a vibrating trench roll constructed in accordance with one embodiment of the invention; FIG. 3 is a top plan view of the trench roll of FIG. 2; FIG. 4 is a diagrammatic sectional side elevational view of a trench in which is positioned the trench roll of FIGS. 2 and 3; Fig. 5 is a front elevational view of the trench roll of Figs. 2 to 4, with control signals reflecting to and from an operator; Figure 6 is an isometric view of a trench roll hood of Figures 2 to 5; Figure 7 is an enlarged fragmentary isometric view of a portion of the hood of Figure 6; Figure 8 is an enlarged fragmentary side elevational view of a portion of the hood of Figure 6; FIG. 9 is a top plan view of the hood of FIGS. 6 to 8 showing an umbrella below which a protection zone is formed; and [0029] FIG. 10 is an isometric view corresponding to FIG. 9.
    [0003] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0030] Referring to the accompanying drawings, and initially to FIGS. 2 and 3, there is illustrated a machine d. An exemplary compaction constructed in accordance with one embodiment of the present invention. The machine 50 of the present embodiment is a vibrating trench roller 50. The vibrating trench roller 50 comprises a self-propelled machine supported on the ground via a front rotating drum assembly 52 and a rotating drum assembly. 5 back 54. It is generally used to compact the bottom of trenches before the laying of pipes or similar elements. and / or to compact recently filled trenches. The machine 50 comprises an articulated frame 56 respectively comprising front and rear subframes 58 and 60. The front and rear subframes 58 and 60 are connected to each other via a pivoting connection. 62 and are supported on the floor via the front and rear drum assemblies 52 and 54, respectively. The frame 56 may have a narrow width, such as about 20 inches (50 centimeters), to allow the use of the machine 10 for compacting the bottom of relatively narrow trenches for the laying of pipes and similar elements. The forward subframe 58 can support a motor (not shown) accessible through a vented hood 64. The rear subframe 60 can support a control system for the machine 50 as well as a storage compartment. closed accessible. by means of a pivoting cover 66 on a rear cover 68. As is generally understood in the art, each of the front and rear drum assemblies 52 and 54 may be energized to vibrate by a dedicated exciter assembly (not shown). ) which is actuated by a control system. Each exciter assembly generally comprises one or more eccentric masses (not shown) mounted on one or more rotating shafts (not shown) positioned inside an axle housing. Rotation of each eccentric mass applies vibration to the associated axle housing and the rest of the drum assembly. In this way, the front and rear rotary drum assemblies 52 and 54 can be used to compact the soil. [0031] Still referring to FIGS. 2 and 3, the first and second receivers 70 and 72 or "eyes" are respectively located at the front and rear ends of the machine 50, generally near the edges of the front and rear hoods 64 and 68. Each eye 70 and 72 is also mounted on or near a longitudinal centerline 76 of the machine 50. In addition, according to one embodiment of the invention, a third additional eye 74 is provided at a location. designed to be within a common reception area with eye 70 or 72. In this context, a "receiving area" means a volume occupied by a given infrared signal that is transmitted from a given location, as will be described below. The eye 74 is located in a first common receiving area with the eye 70 and in a second common receiving area with the eye 72. Each of the eyes 70, 72 and 74 of the illustrated embodiment is an IR photodetector. Each of the eyes 70, 72 and 74 comprises a receiver and associated circuitry constituting a module mounted in an opening in the respective cap 64 or 68 and which is covered by a transparent protective cover bolted to the cover 64 or 68. Such The cover is shown at 75 in the exploded view of FIG. 7. Nevertheless, as will be described hereinafter, each of the eyes 70, 72 and 74 may be configured to detect signals in other spectra in addition to or place signals transmitted in the IR spectrum. An electronic device receives eye signals 70, 72 and 74 and stop the machine 50, to control 10 and the direction of the machine 50 in one (forwards or backwards) and for exciter assemblies of the machine. Preferably, the third machine 50 to start the propulsion desired direction to control the eye or the additional eye 74 is located on the machine 50 and 15 generally in the center laterally of the machine 50, and with the most preferably at adjacent to the longitudinal center line 76 of the machine 50, so as to be generally uniformly accessible on both sides of the machine 50. The eye 74 is also positioned generally at the longitudinal center of the machine 50 so as to be approximately one third of the length of the machine from its lateral center line 78 and if possible generally equidistant from each eye 70 and 72. In a machine 8 feet long (2.43 meters), the third eye 74 is preferably located at most 1.5 feet (4.3 meters), and more preferably at most 1 foot (0.30 meters) from the lateral center line of the machine 50. t, the effective reception area is of generally equal size for the combination of the first and third eyes 70 and 74 and for the combination of the second and third eyes 72 and 74. In this case, the third eye 74 is located on the rear portion of the front subframe 58 above the hood 64. A preferred positioning of the third eye 74 on the hood 64 will be described hereinafter. The operational advantages of the third eye 74 can be appreciated with reference to FIG. 4. The roller 50 is shown as being used for compacting the ground 14 of the trench 12, as has been described above with reference to FIG. Figure 1. Trench 12 which may be 6 to 12 feet (1.8 to 3.6 meters) deep or more is consolidated with vertical reinforcement walls located along each side wall of Trench 12 and with a number of spaced cross supports 18 extending laterally between the side walls 16, generally near the top 20 of the trench 12. The reinforcing walls 16 and the crossed supports 18 may be constituted by a "trench formwork", as this is well known in the art. The machine 50 is controlled by an operator parked above the trench 12 via a portable remote control 22 which transmits an IR signal 24. The remote control 22 can be operated to control some or all of the operating parameters of the machine. For example, it can be used to start and stop the - engine. It can also be used to control the direction of movement of the machine forwards or backwards and to steer the machine 50, possibly using joysticks on the remote control 22. The remote control 22 can also be used to control the machines. machine vibrations that are generated by the exciters, including at least ON / OFF control and possibly vibration intensity control as well as up / down control. The IR signal 24 can be set to one of several different control channels to allow multiple machines to operate in the same area without any interference between them. This function can be controlled, for example, by a channel select switch on the remote control 22. The remote control 22 performs these functions by transmitting an IR signal 24 that propagates from the remote controller 22 in an expansion arc up it reaches the machine 50. The signal 24 is received by one or more of the eyes 70, 72 and 74 on the machine 50, it is transmitted to the circuitry of the machine and it is decoded to execute the transmitted commands. by remote control 20 22. [0037] At the indicated position, the front eye 70 is outside the second "receiving zone" of the remote control 22 because it is not inside. the arc of the infrared signal 24. In addition, the rear eye 72 is in a "dead zone" consisting of the "shadow" located downstream of one of the crossed supports 18 in the direction of propagation of the IR signal. The dead zone is delimited by the line 30 in FIG. 4. Nevertheless, even if a transmission towards the eye 72 is blocked by the obstruction 18, the machine 50 nevertheless continues to be controlled because the signal 24 is always received by the third eye 74 which is positioned in a common reception area with the eye 72. But, regarding the presence of the third eye 74, the machine 50 would have stopped due to a loss of signal, and the operator should have changed position so that the eye 72 is outside the dead zone in order to resume operation of the machine. It should be mentioned that the third eye 74 is also in a common receiving area with the first eye 70 so that an operator positioned in front of and above the machine 50 can continue to operate the machine 50 even if a signal transmission to the first eye 70 is blocked by a crossed support 18 or by another obstruction. With reference to FIG. 5, the remote control 22 can be configured to simultaneously transmit two distinct IR signals. The first signal 80 is a relatively high intensity control signal 80 having a range of about 50 to 65 feet (15 to 20 meters). This signal is often called a "far field" signal. The second signal 82 is a relatively low intensity security signal 82 having a range of about 6.6 feet (2 meters). This signal is often called a "near field" signal. The safety or near-field signal 82 may be generated when the remote control 22 is active and causes the machine 50 to stop moving and vibrate upon receipt by the machine of the security signal 82 via one or more of the eyes 70, 72 and 74.
    [0004] The machine 50 thus stops moving and vibrating if an operator 84 is located in a "safety zone" with a radius of about 2 meters from the machine 50. [0040] As indicated by the arrows representing the signals 80 and 82 in FIG. 5, the signals 80 and 82 may be reflected by the machine 50. The near-field signal 82 is too weak to be reflected to the operator 84 unless 10 l operator is positioned very close to the machine 50, that is to say, well inside the safety zone of 2 meters. Nevertheless, when the operator 84 is in this safety zone, the far-field signal 80, which is much stronger, can be reflected by the machine 50 to the head or shoulders of the operator 84. returning to the machine 50 If the third or additional eye 74 is not protected against this reflected signal, the reflected signal can reach the eye 74, causing the machine 50 to move while the operator is traveling. found in the security zone. [0041] Referring to FIGS. 6 and 7, the desired protection is achieved in the present embodiment by recessing the third eye 74 into an upper surface DO of the hood 64 and providing additional shielding adjacent to the eye 74. The resulting geometry generates a protection zone which prevents the signals transmitted below a desired height in the 2-meter safety zone from reaching the eye 74. This protection is sufficient to reduce or avoid transmitting a far-field signal reflected in the safety zone to the eye 72 without unacceptable reduction in the effective operating range of the remote control 22, particularly from the front and rear of the machine 50. Referring to Figure 6, the eye 74 of the present embodiment is mounted in a recess 92 in the rear end portion of the upper surface 90 of the hood 64. The recess 92 extends longitudinally along the hood 64 from a rear edge 94 to approximately the center of the hood 64 and is laterally centered on the hood 64. The recess 92 is delimited, at its lateral edges, by right side walls and left 96 and 98 extending generally longitudinally and, at its front edge, by a front wall 99. The depth, length and width of the recess 92, as determined by the length, height and width. spacing the location largely from the aesthetic, lateral 96 and 98 and front 99, depend on whether the recess between the walls of the wall 92 is sufficiently wide and deep enough to form an incident angle from the eye 74 to the upper edge of the front wall 99 and each side wall 96 and 98 of the recess which is small enough to achieve the protection effects described hereinafter. Referring to Figures 7 and 8, in which an IR transparent protective cover on the eye 74 has been removed, the eye 74 is mounted in a pocket 100 which is formed at the bottom of the recess 3028270 18 92 and which is delimited by a peripheral wall 102. The pocket 100 is stepped in this embodiment so as to receive the eye 74 at a central portion - deeper thereof. The pocket 100 is circular, but it can also have other shapes. First and second arched lateral shields 104 and 106 are positioned laterally between the eye 74 and the peripheral wall 102 of the pocket 100, and thus laterally between the eye 74 and the respective lateral walls 96 and 98 of the recess 92. Each shield 104 and 106 'extends at least generally vertically 1) from a base located inside the outer edge of the deeper central portion of the pocket 100 2) to an upper edge 110, 112 of that -this. These shields 104 and 106 serve to block IR radiation transmitted to the eye 74 below a relatively small angle that can be generated when the signal is reflected by an operator standing near the machine 50 instead of the machine. be transmitted directly by the remote control 22 at a safety distance above the machine 50. A protection zone of increasing height, below which the eye 74 can not receive a control signal, thus grows completely around 25 of the machine 50. The volume of the protection zone, as well as the radius, the length of the arc, the height and the inclination of each of the shields 104 and 106, as well as the surface and the depth pocket 100 ,. are largely application-specific. They also fall under the designer's preference, knowing that any signal blocking takes place to the detriment of the operational scope. The reduction of the operational range is realized by the inability to transmit signals from the protection zone 5 to the eye 74. The shields 104 and 106 therefore do not need to completely surround the eye 74. and, preferably, they do not encircle it. Instead, they leave spaces in front of and behind the eye to reduce the size of the angle in front of and behind the machine 50, which facilitates the control of the machine 50 by an operator standing in or near a trench. of the latter in front of or behind the machine 50. With reference to FIG. 4, a larger angle, indicated by line 130, undesirably limits the minimum distance to which the operator can be in relation to the machine. 50 by holding the remote control 22 at a given reference height "H" (indicated by the line 134, the reference height being measured from the top 20 of the trench 12 simply for practical reasons), while maintaining visibility direct for the control of the machine 50 via the eye 74. A smaller angle, indicated by the line 132, increases this minimum distance. The points D1 and D2 are compared on line 134 of FIG. 4. Of course, the machine 50 can also be controlled if the IR signal reaches one of the other eyes 70 or 72. [0045] For this purpose, each Shield 104 and 106 extend through an effective arc, i.e., the length of arc to which the shield extends to a height providing protection beyond that provided by other components of the machine, less than 180 degrees, and more typically through an arc length of about 60 degrees to 100 degrees. As with the other design considerations, the height and shape of each shield 104, 106, as well as its distance from the eye 74, are designed to produce a protection zone of desired configurations, as will be described immediately below, and they are largely determined by the overall geometry of the machine and the designer's preferences. A possible configuration of the protection zone according to the dimensions, the shape and the positioning of the recess 92, the pocket 100 and the shields 104 and 106 constituting collectively the shielding, can be appreciated with reference to the Figures 9 and 10 show a geometric "umbrella" 120 formed by an infinite number of lines 122 extending around the eye 74. In Figures 9 and 10, there is shown nineteen such lines 122 spaced at increments of 10 degrees to constitute eighteen segments, the angle of each of them with respect to the horizontal being designated in FIG. 10. Signals transmitted in the protection zone below the umbrella 120, which they are transmitted directly or they are reflected, can not reach the eye 74. The umbrella 120 of this embodiment is symmetrical with respect to the longitudinal center line 76 of the machine 50, which is why only one 30 half of the umbrella 120 is illustrated, knowing that the other half is a mirror image of the illustrated half. Each line 122 of the umbrella 120 extends from the eye 74 to an obstruction preventing that an IR light coming from below this line reaches the eye 74. The obstruction may for example comprise the upper edge 110. or 112 of one of the shields 104 or 106 or an upper edge 114 of the pocket wall 102. The angle of each line 122 relative to the horizontal depends on the height of the corresponding obstruction and the distance 10 This obstruction is constituted by the upper edge 110 of the central portion of the shield 104, the angle is determined by the horizontal distance and the vertical distance between the eye. 74 and the upper edge 110 of the central portion of the shield 104. In typical operating conditions, the remote control 22 is kept within reach, about the height of the chest. When the operator 84 is at this position 20 inside the trench 12, the simple fact that the eye 74 is hollowed inside the pocket 100 prevents signals from reaching the eye 74 since the remote control 22 is below the height of the machine 50. As has been indicated above with reference to FIG. 5, when the operator 84 approaches the machine 50, the far-field IR signals may be reflected from the machine side 50 at an upward angle, then through the upper body or the operator's head, before reaching the top of the machine 50. Nevertheless, the shields 104 and 106 prevent the signal from reaching the eye 74 in this situation, which prevents unwanted propulsion of the machine. [0048]. With reference to FIGS. 9 and 10, the angles of the lines 122 have been developed specifically for the vibrating trench roll 50 illustrated and are based on the height and width of the roll 50 and other aspects of the roll geometry. The actual angles of the lines 122 relative to the horizontally illustrated roller 50 are indicated in FIG.
    [0005] The lines, which extend to 22.5 degrees for example, cover an area of seven radial segments of 10 degrees each, ie 70 degrees. The next 10 degree segment at each end of this segment of the umbrella 120 begins to taper slightly to 19 degrees, before essentially falling completely. The angle of the lines 122 extending directly above the front and rear ends of the machine 50 should ideally be zero or have a negative slope. Nevertheless, since the upper surface 90 of the cover 64 of this particular machine 50 is inclined, the inventors could only make an angle of 7 degrees to the rear and an angle of 3 degrees to the front. The deviations of these values from the ideal values are not significant in the design.
    [0006] The most important part of the design, from the point of view of operator safety, is the 90 degree coverage at the central portion of the umbrella 120, i.e. in an arc extending from 45 degrees on each side of a line 78 which laterally intersects the umbrella 120. The resulting configuration provides good protection on the sides of the machine 50 by providing relatively large umbrella angles, but as described above Referring to Figure 4, it maximizes the operational range in front of and behind the machine where it is most likely that the operator is in operation. [0049] It should be emphasized that the shape of the geometric umbrella 120, and thus the safety zone below it, depends greatly on the design of the machine. If the length of the machine 50 is greater than the illustrated length of 8.8 feet (2.43 meters), it may be desirable to increase the size of the protection zone to account for the longer length of the machine. .
    [0007] In another example, if the machine is closer to the ground than illustrated, this angle must be more pronounced to provide the same level of operator protection. The ideal shape of the geometric umbrella 120 also depends on the reflectivity of the particular signals emitted from the remote control 22. If the signals are more reflective, it is advisable to adopt a more aggressive design to obtain a larger protection zone. . [0051] Although disclosed above the best embodiment of the present invention as contemplated by the inventors, the practice of the present invention is not limited thereto. It is clear that various additions, modifications and rearrangements of the features of the present invention can be made without departing from the spirit and scope of the underlying inventive concept. For example, although the invention has been described with reference to a two-axle articulated trench roller, it should be understood that the invention may be applicable to other remote-controlled rolls having more or fewer than two axles , like crawler rollers. It is also applicable to remotely controlled compacting machines other than rollers, such as vibrating plate compactors. In addition, although the machine 50 has been described with three receivers, it should be understood that the invention is applicable to machines having more or fewer than three receivers, provided that at least one of the receivers has at least some of the redundancy features of the eye 74 described herein to ensure continuous operation of the machine if the transmission of the control signal to another receiver is blocked by an obstruction. In addition, the concepts described herein are applicable to line-of-sight remote control systems other than IR-based control systems. For example, it is conceivable that the control signals may be in the UV, visible, microwave or radio spectrum instead of the IR spectrum.
    权利要求:
    Claims (18)
    [0001]
    REVENDICATIONS1. A compacting machine (50) comprising: a movable frame (56); a compacting device on which the mobile frame is mounted and which compact the surface on which the machine is supported; first and second receivers (70, 72) configured to simultaneously receive a line of sight signal from the same remote control (22), such that one of the receivers continues to receive the signal if a signal path to the other receiver is blocked by an obstruction.
    [0002]
    The compacting machine (50) according to claim 1, wherein: the first receiver (70) is supported on the frame (56) near a first longitudinal end of the machine, and the second receiver (72) is supported on the frame near a longitudinal center of the machine.
    [0003]
    The compacting machine (50) according to claim 2, further comprising a third receiver supported on the frame (56) proximate a second longitudinal end of the machine opposite the first longitudinal end, and in wherein the second receiver (72) is located in a first common reception area with the first receiver (70) and in a second common reception area with the third receiver.
    [0004]
    The compacting machine (50) according to claim 1, wherein the first and second receivers (70, 72) are photo-eyes configured to receive IR control signals transmitted by a remote control (22). 10
    [0005]
    The compacting machine (50) according to claim 1, further comprising a shield, located between the second receiver (72) and a side edge of an upper surface of the compaction machine, which is configured to prevent a signal reaches the second receiver, the signal being transmitted from a remote control (22), reflected by an operator and reflected to the compaction machine.
    [0006]
    The compacting machine (50) according to claim 5, further comprising a sub-frame which is mounted on the frame (56) and which is covered by a hood (64, 68), and wherein the second receiver ( 72) is mounted in a recess in the hood, and wherein the shield comprises at least one of 1) an edge of the recess and 2) a shield (104, 106) which is located laterally between the second receiver and an edge of the recess.
    [0007]
    The compacting machine (50) according to claim 1, wherein the compaction machine comprises longitudinally spaced first and second longitudinally spaced rollers on which the movable frame (56) is mounted and which compact the surface on which the machine is supported.
    [0008]
    The compacting machine (50) according to claim 7, wherein the compaction machine is a vibrating trench roll.
    [0009]
    A compacting machine (50) comprising: a movable frame (56); first and second longitudinally spaced rollers on which the movable frame is mounted and which compact the surface on which the machine is supported; a first receiver (70) supported on the frame near a first longitudinal end of the machine; a second receiver (72) supported on the frame near a second longitudinal end of the machine; and a third receiver supported on the frame (56) proximate a center of the machine, wherein the first and third receivers or the second and third receivers are configured to simultaneously receive a line of sight signal from the remote control ( 22), so that one of the receivers continues to receive the signal if a signal path to one of the other receivers is blocked by an obstruction. 30S59517 JB-P 28
    [0010]
    The compacting machine (50) according to claim 9, wherein the machine is a vibrating trench roll.
    [0011]
    The compacting machine (50) according to claim 9, wherein the first, second and third receivers are photo-eyes (70, 72, 74) configured to receive IR control signals transmitted from a remote control ( 22).
    [0012]
    The compacting machine (50) according to claim 9, further comprising a shield, located between the third receiver and a side edge of an upper surface of the compaction machine, which is configured to prevent a signal transmitted from a remote control (22) reaches the second receiver (72), the signal being reflected by an operator to the compaction machine.
    [0013]
    The compacting machine (50) according to claim 12, further comprising a sub-frame which is mounted on the frame (56) and which is covered by a hood, (64, 68), and wherein the third receiver is mounted in a recess in the hood, and wherein the shield comprises at least one of 1) an edge of the recess and 2) a shield (104, 106) which is located laterally between the third receiver and an edge of the recess and which extends above a base of the recess.
    [0014]
    14. A method comprising: simultaneously transmitting a control signal from a remote control (22) to first and second receivers (70, 72) spaced apart in a common reception area on a remote control (22); a compacting machine so that, if the transmission of the control signal to one of the receivers is blocked by an obstruction, the control signal is always received by the other receiver. 10
    [0015]
    The method according to claim 14, wherein the first and second receivers (70, 72) are respectively located near a front end of the machine and in a central portion of the machine, and wherein the compaction machine ( 50) further comprises a third receiver located near a second end of the machine, and wherein the step of the transmission causes the signal to reach one of the first and second receivers or the second and third receivers. the absence of an obstruction. 20
    [0016]
    The method of claim 14, wherein the control signal is an RF signal.
    [0017]
    17. The method of claim 14, wherein the control signal comprises a relatively high intensity control signal which controls an operation of the compaction machine (50) and a relatively low intensity safety signal which stops the machine. 30S59517 JB-P ao
    [0018]
    The method of claim 17, further comprising blocking the reception of control signals on the second receiver in a protection zone located beneath a reception capacity geometric umbrella extending around the second receiver.
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    同族专利:
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    US10047500B2|2018-08-14|
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    法律状态:
    2016-11-30| PLFP| Fee payment|Year of fee payment: 2 |
    2017-11-30| PLFP| Fee payment|Year of fee payment: 3 |
    2019-11-29| PLFP| Fee payment|Year of fee payment: 5 |
    2020-01-31| PLSC| Publication of the preliminary search report|Effective date: 20200131 |
    2020-11-30| PLFP| Fee payment|Year of fee payment: 6 |
    2021-07-23| TP| Transmission of property|Owner name: WACKER NEUSON CORPORATION, US Effective date: 20210614 |
    2021-09-10| CA| Change of address|Effective date: 20210803 |
    2021-09-10| CD| Change of name or company name|Owner name: WACKER NEUSON AMERICA CORPORATION, US Effective date: 20210803 |
    2021-11-30| PLFP| Fee payment|Year of fee payment: 7 |
    优先权:
    申请号 | 申请日 | 专利标题
    US201462076809P| true| 2014-11-07|2014-11-07|
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