JP3006412U - Chamfer sleeve - Google Patents

Abstract

(57) [Summary] [Purpose] Since no electric tools are used, work can be performed safely even in the event of a water mains cutting accident or bad weather, the chamfered portion has high accuracy, and there is no concern about damage to the rubber ring. The purpose is to provide a chamfered sleeve having an effect. [Structure] A ring-shaped body 1A configured so that a quadrangular prism-shaped body made of polyethylene or the like is brought into contact with an end surface 3B1 of an insertion port of a tube 3 and a rear side continuously provided on an outer peripheral portion of a rear surface portion of the ring body 1A. It is composed of a projecting edge 1B fitted to the outer peripheral surface 3B2 of the insertion opening and an inclined surface 1C formed by obliquely cutting the outer corner of the front surface portion of the ring body 1A.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a chamfering sleeve having a novel structure, which includes ductiles, cast iron pipes (T-shaped pipes) and ductile cast iron deformed pipes (T-shaped pipes), as well as insertion ports of all pipes connected to these pipes. The chamfering process can be eliminated.

[0002]

[Prior art]

 Conventionally, this kind of thing is as follows. For example, in the case of repairing a broken pipe such as a water pipe, since it is used only for the repair, the off-the-shelf ductile, cast iron pipe (T type pipe) and ductile cast iron deformed pipe (T type pipe) cannot be used as they are. The ready-made product is cut according to the size of the repaired part to make the repairing pipe 4, and this is used. However, the cut end face does not fit into the connecting portion 2C of the adjacent pipe 2 to be connected, so the chamfered 4A is processed manually by an electric disc grinder or the like at a construction site or a processing factory. Had formed. (See Figure 5)

[0003]

[Problems to be solved by the device]

 The conventional techniques described above have the following problems. 1. If the human body or electric tools are wet during work such as accidental damage to the water mains or work in the rain, there is a risk of electric shock. 2. Since the chamfering process is performed by hand, the accuracy of the process may be poor and the rubber ring at the socket may be damaged. 3. In the case of chamfering processing on site, the processing takes time, resulting in loss of work.

The present application has been made in view of such problems of the conventional technology, and an object of the present application is to provide a device capable of solving the above problems.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention is as follows. That is, in the present application, a ring body 1A configured so that a square columnar body made of polyethylene or vinyl chloride is brought into contact with the end surface 3B1 of the insertion port of the tube 3, and an outer peripheral portion of the rear surface portion of the ring body 1A. A protruding edge 1B that is fitted to the outer peripheral surface 3B2 of the insertion port that is continuously connected to the rear side, and an inclined surface 1C that is formed by obliquely cutting the outer corner of the front surface of the ring body 1A. It is a chamfered sleeve. In this case, the dimensions of the chamfering sleeve 1 in the case of the pipe 3 having the nominal diameter of 150 mm, the outer diameter 3D of 169 mm, and the pipe thickness 3E of 4 mm are as follows: the length of the ring body 1A in the front-rear direction 1A1 is 10 mm, and the thickness of the ring body 1A is 1 mm. The thickness 1A1 may be 6 mm, the length 1B1 in the front-rear direction of the projecting edge 1B may be 10 mm, the wall thickness 1B2 of the projecting edge 1B may be 1 mm, and the wall thickness 1D1 of the vertical wall portion 1D may be 2 mm. Further, in the case of the pipe 3 having a nominal diameter other than 150 mm, the length 1A1 in the front-rear direction of the ring body 1A is in the range of 10 mm to 16 mm, and the length 1B1 in the front-rear direction of the flange 1B is in the range of 10 mm to 10. It can be adjusted and configured in the range of 20 mm.

[0006]

[Action]

 By inserting a chamfering sleeve into a tube that cannot be inserted without so-called chamfering, it can be inserted easily and reliably.

[0007]

【Example】

 Examples will be described with reference to the drawings. 1 is a chamfering sleeve of the present invention. Reference numeral 2 is a well-known ductile cast iron pipe (T type pipe), ductile cast iron deformed pipe (T type pipe), etc., 2A is a tubular body, 2B is a so-called chamfered tip insertion port, and 2C is a rear end connection part. 2D has a lining portion and 2E has a rubber ring. Reference numeral 3 is a pipe to which this chamfering sleeve is attached, 3A is a tubular body, 3B is a so-called chamfered tip insertion opening, 3B1 is an end surface of the insertion opening, 3B2 is an outer peripheral surface of the insertion opening, and 3C is a lining portion. Is.

Although a connecting portion having the same structure as the connecting portion 2C is formed at the rear end of the pipe 3, the illustration thereof is omitted. That is, the non-chamfered tip insertion port 3B is formed by cutting the tubular body 3A in a direction orthogonal to the longitudinal direction of the tubular body 3A. The circumstances that require the pipe 3 in such a state are as follows. As described above, for example, in the case of repairing a broken pipe such as a water pipe, since it is used only for the repair, the ready-made pipe 2 cannot be used as it is and must be cut according to the size of the repaired place. Because. In addition, even when newly installed, it may be necessary to cut the ready-made pipe 2 in the middle to chamfer it. From this point of view, in all cases of water pipe construction, there is a situation in which the pipe 3 is required.

Therefore, the details of the chamfering sleeve 1 will be described. A ring body 1A configured so that a square columnar body made of polyethylene or vinyl chloride is brought into contact with the end surface 3B1 of the insertion opening of the tube 3, and the rear end of the ring body 1A is continuously connected to the outer peripheral portion of the rear surface portion of the ring body 1A. It is composed of a projecting edge 1B fitted to the outer peripheral surface 3B2 of the formed insertion opening and an inclined surface 1C formed by obliquely cutting the outer corner of the front surface portion of the ring body 1A. 1D is a vertical wall portion.

In terms of dimensions, the following conditions were suitable. With reference to FIG. 2, for example, the dimensions of the chamfering sleeve 1 for the case of the pipe 3 having a nominal diameter of 150 mm, an outer diameter of 3D to 169 mm, and a pipe thickness of 3E to 4 mm are as follows. Length 1A1 to 10 mm of the ring body 1A in the front-rear direction, wall thickness 1A2 to 6 mm of the ring body 1A, length 1B1 to 10 mm of the protruding edge 1B in the front-rear direction, wall thickness 1B2 to 1 mm of the protruding edge 1B, vertical wall portion 1D Thickness 1D 1-2 mm. The nominal diameters of the tubes 3 are 75 mm, 100 mm ,. ． ． There are about 22 types up to 2000 mm, but in order to obtain the ring body 1A corresponding to these, the length 1A1 in the front-rear direction of the ring body 1A is in the range of 10 mm to 16 mm, and the length of the protruding edge 1B in the front-rear direction. It will be manufactured by adjusting 1B1 in the range of 10 mm to 20 mm. Polyethylene was the preferred material.

[0011]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. 1. Since no electric tools are used, it is possible to work safely even in the event of a water mains cutting accident or bad weather. 2. Unlike the chamfering process by hand on site or elsewhere, the precision of the chamfered part is high and there is no concern about damage to the rubber ring. 3. Since chamfering processing is not required during on-site piping work, on-site work is not interrupted and processing waiting time is eliminated. 4. Cheaper than manual chamfering by skilled workers. 5. The anticorrosion coating part of the pipe is not scraped off by a grinder etc., so the anticorrosion effect is not impaired.

[Submission date] July 25, 1994

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0005

[Correction method] Added

[Correction content]

[0005]

[Means for Solving the Problems]

In order to achieve the above object, the present invention is as follows. That is, in the present application, a ring body 1A configured so that a square columnar body made of polyethylene or vinyl chloride is brought into contact with the end surface 3B1 of the insertion port of the tube 3, and an outer peripheral portion of the rear surface portion of the ring body 1A. A protruding edge 1B that is fitted to the outer peripheral surface 3B2 of the insertion port that is continuously connected to the rear side, and an inclined surface 1C that is formed by obliquely cutting the outer corner of the front surface of the ring body 1A. It is a chamfered sleeve. In this case, the dimensions of the chamfering sleeve 1 in the case of the pipe 3 having the nominal diameter of 150 mm, the outer diameter 3D of 169 mm, and the pipe thickness 3E of 4 mm are as follows: the outer diameter of the ring body 1A is 170 mm, and the length of the ring body 1A in the front-rear direction. 1A1 is 10 mm, 1A1 of the ring body 1A is 6 mm in length, 1B1 in the front-rear direction of the ridge 1B is 10 mm in thickness, 1B2 is 1 mm in the ridge 1B, and 1D1 is 2 mm in the vertical wall 1D. Can be configured to. Further, in the case of the pipe 3 having a nominal diameter other than 150 mm, the length 1A1 in the front-rear direction of the ring body 1A is in the range of 10 mm to 16 mm, and the length 1B1 in the front-rear direction of the flange 1B is in the range of 10 mm to 10. It can be adjusted and configured in the range of 20 mm.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Added

[Correction content]

In terms of dimensions, the following conditions were suitable. With reference to FIG. 2, for example, the dimensions of the chamfering sleeve 1 for the case of the pipe 3 having a nominal diameter of 150 mm, an outer diameter of 3D to 169 mm, and a pipe thickness of 3E to 4 mm are as follows. The outer diameter of the ring body 1A is 170 mm, the length 1A1 to 10 mm in the front-rear direction of the ring body 1A, the wall thickness 1A2 to 6 mm of the ring body 1A, the length 1B1 to 10 mm in the front-rear direction of the projecting edge 1B, and the projecting edge 1B. Wall thickness 1B2-1 mm, vertical wall portion 1D wall thickness 1D1-2 mm. The nominal diameters of the tubes 3 are 75 mm, 100 mm ,. ． ． There are about 22 types up to 2000 mm, but in order to obtain ring bodies 1A corresponding to these, the length 1A1 in the front-back direction of the ring body 1A is in the range of 10 mm to 16 mm, and the length in the front-back direction of the ridge 1B It will be manufactured by adjusting 1B1 in the range of 10 mm to 20 mm. Polyethylene was the preferred material.

[Brief description of drawings]

FIG. 1 is a front view of a chamfering sleeve.

FIG. 2 is a side view with a part cut away for explaining a use state.

FIG. 3 is an enlarged view of a main part in FIG.

FIG. 4 is an enlarged cross-sectional view of an essential part for explaining a usage state of the object of the present application.

FIG. 5 is an enlarged cross-sectional view of a main part for explaining a conventional use state.

[Explanation of symbols]

 1 Chamfering sleeve 1A Ring body 1B Projection edge 1C Inclined surface 1D Vertical wall part

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[Procedure amendment]

[Submission date] July 25, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Scope of utility model registration request

[Correction method] Change

[Correction content]

[Scope of utility model registration request]

Claims (3)

[Scope of utility model registration request] 1. A ring body (1A) configured so that a square columnar body made of polyethylene, vinyl chloride or the like is brought into contact with an end face (3B1) of an insertion port of a pipe (3).
And a projecting edge (1B) fitted to the outer peripheral surface (3B2) of the insertion slot that is continuously provided rearward on the outer peripheral portion of the rear surface portion of the ring body (1A) and the front surface portion of the ring body (1A). A chamfering sleeve comprising an inclined surface (1C) formed by obliquely cutting an outer corner. 2. A nominal diameter of 150 mm and an outer diameter (3D) of 1
The dimension of the chamfering sleeve (1) is 69 mm and the tube thickness (3E) is 4 mm.
The length (1A1) in the front-back direction is 10 mm, and the ring body (1A1)
The thickness (1A2) of A) is 6 mm, the length (1B1) of the protruding edge (1B) in the front-rear direction is 10 mm, the thickness (1B2) of the protruding edge (1B) is 1 mm, and the vertical wall portion (1D) is Thickness (1D
The chamfering sleeve according to claim 1, wherein 1) is 2 mm. 3. The length (1A1) in the front-rear direction of the ring body (1A) when the pipe has a nominal diameter other than 150 mm.
3. The chamfering sleeve according to claim 2, wherein the chamfered sleeve is formed by adjusting the length of the projection edge (1B) in the front-rear direction (1B1) within the range of 10 mm to 20 mm.