• 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:

    公开号:SE0950522A1
    申请号:SE0950522
    申请日:2009-07-03
    公开日:2011-01-04
    发明作者:Bjoern Rydetorp；Lars Nothall
    申请人:Villeroy & Boch Gustavsberg Ab；
    IPC主号:
    专利说明:

    P18071ENOO 2 patent application with publication number EP 2014838. The wall bracket fixtures described in the application have pipe parts which after assembly may need to be cut or cut to a suitable length. When an installer or fitter has to cut to the appropriate length of the passage section after installation of the wall bracket fixture, it can be difficult and difficult. The assembly has often taken place within a limited and cramped space, in addition, a water pipe or the like usually protrudes from the pipe part to be cut or pruned. A negligent installer may in the event of an accident damage a water supply pipe, which may result in unwanted water leakage.
    SUMMARY OF THE INVENTION The present invention seeks to solve or reduce at least some of the above problems, or alternatively to provide an alternative to existing solutions. The present invention relates to a cutting tool for trimming a wall bracket fixture comprising a threaded pipe member having a thread. The cutting tool has a substantially cylindrical shape defined by at least one wall, a longitudinal centerline and a first and a second end and at least one cutting knife. The slitting knife also has fastening means for attaching to the threaded pipe part arranged in connection with the other end.
    The cutting knife is further arranged to cut the pipe part when rotating said cutting tool, and thus the cutting knife, around the longitudinal center line.
    The fastening means for attaching to the threaded pipe part is a thread and is arranged to cooperate with the thread on the pipe part, wherein upon rotation of the cutting tool in a certain direction, the cutting tool moves in a direction towards the pipe part, alternatively towards a reference point on the pipe part, while pipe part pruned. The cutting tool also has a cavity for receiving a pipe arranged in the threaded pipe part.
    The present invention solves the problems of pruning pipe fittings to suitable lengths in tight spaces without damaging interior pipes or other sensitive material in the pipe section being pruned.
    In accordance with an embodiment of the present invention, the thread is arranged in direct connection with the other end of the cutting tool, which means that a larger length of pipe part can be cut. The cutting tool has a transverse center line, the cutting knife, or cutting knives, being arranged (e) between the transverse center line and the thread. This simplifies the manufacture of the cutting tool. The cutting knife, or cutting knives, can also be arranged in direct connection with the threading. At one end of the cutting tool, one or more through-openings can be arranged. The through-openings provide an opportunity for the cut material to leave the cavity and thus come out of the cutting tool.
    The cutting tool can be connected to, for example, a screwdriver or a drilling machine to transmit a rotating movement to the cutting tool and thus be able to cut a pipe part in a simple and smooth manner. Therefore, the means for cooperating with a power tool for transmitting a rotating movement therebetween is arranged at the first end of the cutting tool.
    Such means may be, for example, at least one or a plurality of recesses in the wall of the cutting tool. By making recesses in the wall, the cavity is not blocked by the means for cooperation, which means that the cavity is kept free and that, for example, a water pipe in the pipe part can have free space in the cavity of the cutting tool.
    The cavity for receiving, for example, a water main pipe, as mentioned above, arranged in the pipe part to be pruned can extend at least half the length of the cutting tool or further into the cutting tool. It is advantageous if the cavity consists of a through hole which extends through the entire cutting tool. Preferably along the longitudinal centerline of the cutting tool.
    The through hole, or alternatively the cavity, may have at least one portion with a second radius and the thread has a first radius, the second radius of the portion being smaller than the first radius of the thread. The radius is measured from the longitudinal center line. For the thread, the distance is measured up on the individual threads, ie. the shortest distance in the thread. The transition between the second radius of the batch and the first radius of the thread form a flange. The flange extends around the inner surface of the cutting tool, ie. the surface which defines the cavity. At least one cutting knife can advantageously be arranged in connection with the flange.
    The cutting knife can then be arranged to abut against a part of the flange, which gives an increased structural integrity to the cutting knife. The above-mentioned through-openings can advantageously be arranged in connection with the flange. The cutting knife can also be arranged so that it abuts against one side of the through-opening in a position which coincides with the position of the flange, which gives additional stability to the cutting knife. If the cutting tool has a plurality of apertures, a plurality of cutting knives may be arranged in the same manner as just described. It is also possible for the cutting tool to have different numbers of cutting knives and through openings. For example, the cutting tool may have a cutting knife and several through openings. This gives a cheaper construction.
    In general, the invention can be described as a cutting tool for cutting a threaded pipe section, the cutting tool having a longitudinal centerline, at least one thread, at least one cutting knife and fastening means in the form of at least one thread for attaching to the threaded pipe section. The cutting knife being arranged to cut the pipe part when the cutting tool rotates, and thus the cutting knife, around the longitudinal center line.
    The threading of the cutting tool is arranged to cooperate with threading of the pipe part so that when the cutting tool is rotated in a certain direction, the cutting tool moves in a direction towards the pipe part at the same time as the pipe part is pruned. The cutting tool also has a cavity for receiving a pipe arranged in the threaded pipe part being cut. The present invention provides a safe cutting tool which reduces the risk of personal injury and can prune pipe sections in tight spaces without risking damage to pipes located in the pipe section being pruned.
    DEFlN | TlONER The term "plumbing area" here refers to heating, ventilation and sanitation, which refers to the industry in the construction sector, as well as the technical systems in, for example, buildings that are planned, designed and executed by the industry, including the products then used.
    The term "sanitation" refers to the industry and the technical systems, including the products then used in bathrooms, toilets, wet rooms, laundry rooms, nurses and operating rooms and the like.
    BRIEF DESCRIPTION OF THE DRAWINGS The present invention will be described in more detail with reference to the accompanying drawings, in which: Figure 1 shows a wall bracket fixture, which is used in the sanitary industry, with a pipe part which runs through a wall and which is suitable for cutting with a cutting tool according to the present invention; Figure 2 shows a perspective view of a cutting tool according to the present invention and a screw part for cooperation with, for example, a screwdriver; figure 3 shows a further perspective view of the cutting tool and the screw part from figure 2; figure 4a shows the cutting tool from figure 2 with a view towards the other end of the cutting tool; Figure 4b shows a cross section along the line A-A, shown in Figure 4a, of the screw part from Figure 2 and; Figure 4c shows a cross section along the line A-A, shown in Figure 4a, of the cutting tool from Figure 2.
    DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS Figure 1 shows a schematic cross-section of a wall 10 to which a wall bracket fixture 20 has been placed. Wall bracket fixtures 20 are used for pipe-in-pipe applications in the WS field.
    The wall has a first and a second surface 11, 12, the first surface facing the inside of the wall, where there is usually insulation, while the second surface of the wall faces a room, usually some form of wet room, such as a bathroom. A passage portion 22 in the form of a tube, i.e. a pipe section 23 extends through a hole 21 in the wall 10. Through the wall bracket fixture 20, water supply pipes can be drawn into the room. Typically, pipe-in-pipe technology is used where an outer protective pipe 30 is used to protect an inner water pipe 31 through which water can flow. On the outside 24 of the pipe 23, threads 25 are arranged for fastening a fastener (not shown), which in turn can be connected to a water pipe fitting such as a shower mixer.
    When one (or more) fitter (s) has installed the wall bracket fixture 20, tiled the second surface 12 on the wall 10, the pipe part 23 needs to be cut to a suitable length. The tube initially has a length of RU. It is common for a plurality of wall bracket fixtures 20 to be placed close together, which provides a fitter with limited space for cutting the pipe part 23. In order to cut the pipe part 23 to a suitable length, a cutting tool 10 in accordance with the present invention can therefore be used.
    Figure 1 shows the cutting tool 50 with associated detachable screw part 90 in perspective view.
    More specifically, the cutting tool 50 has a substantially cylindrical shape with a longitudinal centerline C and a transverse centerline T, a first and a second end 51, 52, an inner and an outer surface 53, 54. The cutting tool 50 has a wall 57 which forms the cutting tool 50 essentially cylindrical shape. A through hole 58 extends through the entire cutting tool 50 between the first and second ends 51, 52 of the cutting tool 50.
    The through hole 58 is arranged to receive a tube arranged in the tube 23 of the wall bracket fixture 20 during pruning.
    In connection with the first end 51 of the cutting tool 50, a handle 55 is arranged for a user to easily grip and turn the cutting tool 50 during use, which will be described in more detail below. The grip 55 extends approximately half the length of the cutting tool 50 and passes at the transverse centerline T of the cutting tool 50 to a tool area 60 adapted for co-operation with a wrench tool for rotating the cutting tool 50, such as a wrench or a wrench. The tool area 60 has a number of smooth surfaces 61, more specifically six smooth surfaces and in pairs of opposite surfaces arranged to cooperate with, for example, a wrench. In connection with the other end 52 of the cutting tool 50, on the inner surface 53 a thread 56 is arranged for engagement and interaction with a wall bracket fixture as described in connection with figure 1. The thread pitch is about 1-6 mm / revolution, preferably 2-5 mm / turns on the thread 56. However, the thread pitch should be adapted to be the same thread 25 as on the pipe part 23. The cutting tool 50 can thus be threaded on the thread 25 on the wall bracket fixture 20 via the thread 56 on the cutting tool 50.
    Between the thread 56 and the transverse center line T of the cutting tool 50, two mutually opposite through-openings 65, 66 are arranged. Only one opening will be described in more detail below, but it should be noted that both openings 65, 66 have the described features. The opening 65 has an elongate shape with a first and a second end 67, 68. In the first end 67 of the opening 65 a detachable cutting knife 70 is arranged. In the illustrated embodiment of the present invention, the removable cutting knife 70 is substantially square in shape so that four cutting edges are obtained. Should a cutting edge become slippery, the cutting knife can be rotated so that a new sharp cutting edge is arranged opposite the surface to be cut, in this case the pipe part 23 on the wall frame fixture 20. The cutting knife 70 has a substantially cup-shaped surface so that the material being cut off can be pushed out. the opposite side to the cutting edge used. The cutting knife 70 can be fastened with, for example, a screw or the like.
    The screw part 90 has a longitudinal fastening part 91 for detachable fastening with, for example, a screwdriver or a drilling machine. The fastening part 91 is arranged to a plate 92 which has a substantially square shape. The substantially square shape is adapted to engage and cooperate with the first end 51 of the cutting tool 50, which has four recesses in the wall 57, shown in Figure 3, to form a corresponding square shape to the plate 92.
    Figure 3 shows the cutting tool 50 and the screw part 90 from figure 2 seen in perspective from a further direction. The cutting tool 50 and the screw part 90 thus have means for cooperating so that after interconnection and by rotating the screw part, the cutting tool 50 can be rotated. In Figures 2 and 3, this is visualized by the square shape of the plate 92 and that the corresponding grooves 80 together form a receiving and cooperating part of the cutting tool 50. Other shapes are of course conceivable such as a hexagonal shape, or several edges.
    Figure 4a shows the cutting tool seen from the front, ie with a view towards the other end 52. Parts of the grip 55 can be seen. The through hole 58 defined by the substantially cylindrical wall 57 and its inner surface 53. Figures 4b and 4c show both the cutting tool 50 and the screw portion 90 with a longitudinal cross-section along the line A-A, marked in Figure 4a. Figure 4c shows the wall 57 of the cutting tool 50, the first and second ends 51, 52, and the thread 53. The through hole 58 extends between the first and the second end 51, 52. Parts of the first and second through openings 65, 66 can be seen and the cutting knife 70 arranged at the first end 67 of the opening 65. The through hole 58 has a first radius R1 in the part where the thread 53 is arranged. The cutting knife 70, detachably arranged on one side of the opening 65. In the same way, a second cutting knife is arranged in one side of the second opening 66, but not shown.
    As mentioned previously, the cutting knife 70 has four cutting edges, of which at least a first cutting edge 71 extends towards the longitudinal center line C of the cutting tool 50 and the through hole 58. The distance between the longitudinal center line C and parts of the cutting knife 70 is thus smaller than the above described radius R1. This means that the cutting knife 70, alt. the cutting knives, if several, are provided to the cutting tool 50 which, in the embodiment shown, can cut the tube 23 on the wall bracket fixture 20, shown in Figure 1, upon rotation of the cutting tool 50 about the longitudinal centerline C of the cutting tool 50.
    The other end 52 of the cutting tool 50 with its thread 53 is threaded before trimming on a pipe with a corresponding thread, preferably a thread 25 on a tube 23 on a wall bracket fixture 20 as shown in Figure 1. The cutting tool 50 is rotated about the longitudinal centerline C to its cutting knife 70 engages with the circular wall of the tube 23.
    As additional force is applied, the cutting knife 70 will rotate along a circular path and gradually trim the wall of the tube 23 until the desired length of the tube 23 has been obtained. The cutting tool thus moves towards the pipe part to be cut, ie. towards the part of the pipe part that remains. Alternatively, it can be said that the cutting tool moves towards a selected reference point on the pipe part, for example the part closest to the wall 12, see figure 1. The cut strips, alternatively the parts, can be conveniently removed through the through openings 65, 66.
    During installation and pruning of a wall truss fixture, for example according to Figure 1, a water pipe 31 and possibly a protective pipe 30 surrounding the water pipe will be pulled into the pipe 23 of the wall truss fixture 20. It is important that these pipes are not damaged or affected when trimming the pipe 23 on the wall bracket fixture. The through hole 58 on the cutting part 50 ensures that the tubes can be received and run freely from the cutting knife 70, the position of which, i.e. distance to the longitudinal center line C can advantageously be adjusted so that the pipe part 23 is cut and can be shortened, but that the cutting knife 70 does not damage the protective pipe 30 or the water pipe 31 lying in the pipe 23.
    Figure 4c also shows that the through hole 58 of the cutting tool 50 has a plurality of different radii measured from the longitudinal center line C. The thread 52 in the second end 52 of the cutting tool 50 has, as mentioned, a first radius R1. The through hole 58 also has a portion 59 having a second radius R2, in this case arranged between the first and second ends 51, 52 of the cutting tool 50. The transition between the portion 59 and the thread 52 provides a flange 60 which can be used to give the cutting knives 70 a support surface and thus stability to the structure. The cutting knives 70 are thus arranged in direct connection with the flange 60. The openings 65, 66 are also arranged to the flange 60.
    权利要求:
    Claims (1)
    [1]
    1. Cutting tool (50) for trimming a wall bracket fixture comprising a threaded pipe section (23) having a thread (25), said cutting tool (50) having a substantially cylindrical shape defined by at least one wall (57), a longitudinal centerline (C), a first and a second end (51, 52) and at least one cutting knife (70), the cutting tool further comprises fastening means for attaching to said threaded pipe part (23) arranged in connection with said second end (52), said cutting knife (70) being arranged to cut said pipe part (23) upon rotation of said cutting tool (50), and thereby said cutting knife (70), around said longitudinal center line (C), characterized in that said fastening means to attach to said threaded pipe part (23) a thread (53) is arranged to cooperate with said thread (25) on said pipe part (23), wherein upon rotation of said cutting tool (50) in a certain direction, said cutting tool (50) ) moves in an r aiming at said pipe part (23) at the same time as said pipe part (23) is pruned, and that said cutting tool (50) has a cavity (58) for receiving a pipe arranged in said threaded pipe part (23). The cutting tool according to claim 1, characterized in that said thread (53) of the cutting tool (5) is arranged in direct connection with the other end (52) of said cutting tool (50). The cutting tool according to any one of claims 1 or 2, characterized in that said cutting tool (50) has a transverse centerline (T) and that said at least one cutting knife (70) is arranged between said transverse centerline (T) and said thread (53) . The cutting tool according to any one of the preceding claims, characterized by said cutting tool (50) has at least one through-opening (65, 66) arranged so that cut material can leave said cavity (58) and thus out of said cutting tool (50). The cutting tool according to any one of the preceding claims, characterized in that in connection with the first end (51) mentioned in connection with the cutting tool (50), means are provided for co-operation with a power tool (80) for transmission. of a rotating motion therebetween. The cutting tool according to claim 5, characterized in that said means for cooperating with a power tool (80) comprises a plurality of recesses (80) in said wall (57) of said cutting tool (50). The cutting tool according to any one of the preceding claims, characterized in that said cavity (58) consists of a through hole (58) which extends through the entire cutting tool (50) between the first and second ends (51, 52) of the cutting tool (50). The cutting tool according to any one of the preceding claims, characterized in that said through hole (58) has at least one portion (59) with a radius (R2) and that said thread (52) has a radius (R1), said portion (59) ) radius (R2) is smaller than the radius (R1) of said thread (52). The cutting tool according to claim 8, characterized in that the transition between said portion (59) and said thread (53) forms a flange (60) and that said at least one cutting knife (70) is arranged in connection with said flange (60). The cutting tool according to claim 9, characterized in that said cutting tool (50) has at least one through opening (65, 66) arranged so that cut material can leave said cavity (58) and thus out of said cutting tool (50) and that said at least a through opening (65, 66) are provided in connection with said flange (60). . Kit comprising a cutting tool (50) according to any one of the preceding claims and a screw member (90) adapted to be releasably connectable to said cutting tool (50) and to cooperate with said cutting tool (50) for transmitting a rotating motion from a power tool. Use of a cutting tool in accordance with any of the preceding requirements in the WS area. P18071EN00 11 Use of a cutting tool according to claim 12, wherein the use is within the sanitary area.
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    同族专利:
    公开号 | 公开日
    ES2596582T3|2017-01-10|
    DK2269754T3|2016-11-14|
    EP2269754B1|2016-09-07|
    EP2269754A3|2011-09-28|
    EP2269754A2|2011-01-05|
    SE533932C2|2011-03-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2218147A|1939-03-28|1940-10-15|Nat Tube Co|Chamfering tool|
    JPS5038884U|1973-08-08|1975-04-22|SE1950052A1|2019-01-16|2020-07-17|Villeroy & Boch Gustavsberg Ab|Method and assembly for mounting a lead-through device in a wall|
    法律状态:
    2018-03-13| NUG| Patent has lapsed|
    优先权:
    申请号 | 申请日 | 专利标题
    SE0950522A|SE533932C2|2009-07-03|2009-07-03|Cutting Tools|SE0950522A| SE533932C2|2009-07-03|2009-07-03|Cutting Tools|
    EP10168288.8A| EP2269754B1|2009-07-03|2010-07-02|Cutting tool for threaded pipes|
    ES10168288.8T| ES2596582T3|2009-07-03|2010-07-02|Cutting tool for threaded pipes|
    DK10168288.8T| DK2269754T3|2009-07-03|2010-07-02|Threaded Cutting Tool|
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