JPH0586484U - Plumbing tools - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a piping tool which is lightweight and easy to carry, and which can bend and screw a pipe quickly and easily even in a narrow working space. [Structure] A substantially U-shaped pipe bending portion 2 is provided at one end of a rod-shaped grip portion 1, and a substantially U-shaped screw tightening portion 3 is provided at the other end.
By projecting the pipe bending portion 2 into the pipe and pressing and rotating the grip portion 1, the pipe can be bent at a predetermined angle, and the screw tightening portion 3 is The screw can be tightened or loosened by fitting it into a screw portion of a sprinkler head, a mechanical joint, or the like and pressing and rotating the grip portion 1.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention provides a pipe for appropriately bending a pipe, for example, when a branch pipe for communicating and connecting a water supply main provided on the ceiling and a sprinkler head arranged on the ceiling is connected. Regarding tools.

[0002]

[Prior Art]

 Conventionally, a pipe bender is known as this type of tool. This is a long handle provided with a tube holding body at the end, and the end of the pipe held by the tube holding body is supported on the ground or floor, and by pressing the handle in that state. The pipe clamp is used to push and bend the pipe.

[0003]

[Problems to be solved by the device]

 The pipe bender is heavy and inconvenient to carry, and when bending a pipe, a large working space is required above the pipe and a strong supporting surface for supporting the end portion of the pipe is required. However, such pipe bending work usually has to be performed in a narrow space such as the ceiling, and there is not much support surface for supporting the pipe bender in the narrow space such as the ceiling. It was extremely inconvenient to use.

In addition, at the piping site, in addition to the pipe bending work described above, screw tightening work for the sprinkler head and mechanical joints is also performed, so many tools such as monkey wrenches are brought into the site. However, it took a lot of labor to carry the large number of tools, and the large number of tools in the narrow work site made the area even narrower, which could hinder the piping work.

In view of the above problems, the present invention provides a convenient piping tool that is lightweight and easy to carry, and that is capable of quickly and easily bending and screwing pipes even in a narrow working space. The purpose is to do.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, in the invention of claim 1, a substantially U-shaped tube bendable member is provided with a pair of tube holding pieces that are parallel to each other at a predetermined facing interval at one end of the rod-shaped grip portion. The part is integrally projected.

According to a second aspect of the present invention, in the configuration of the first aspect, the pair of tube holding pieces are provided along the inclined direction with respect to the longitudinal direction of the holding portion.

According to a third aspect of the invention, in the structure of the first or second aspect, a substantially U-shaped screw tightening portion is integrally provided at one end portion or the other end portion of the grip portion.

[0009]

[Action]

 According to the invention of claim 1, the pipe bending portion is fitted to a desired portion of the pipe to be bent, the grip portion is gripped, and the grip portion is pressed and rotated in the direction in which the grip portion is bent. The desired portion of the tube can be bent at a predetermined angle.

According to the configuration of claim 2, a desired portion of the pipe can be bent at a predetermined angle by the same procedure as in the above-mentioned claim 1. In this case, in particular, in this case, the pair of pipe clamping parts of the pipe bending portion are clamped. Since one piece is provided along the direction of inclination with respect to the longitudinal direction of the gripping part, a pair of this piping tool is used, and both gripping parts of both tools are formed into a substantially X-shape or a substantially C-shape. As described above, the bent portion of the pipe can be fitted to the pipe so that even if there is an obstacle such as a wall adjacent to the bent portion of the pipe, the obstacle is not obstructed. The bending work can be easily performed.

According to the third aspect, the pipe can be bent at a predetermined angle by the bent portion of the pipe, and the screw tightening portion integrally projecting at one end or the other end of the gripping portion can be used for the sprinkler head or The screw can be tightened or loosened by fitting it into a screw part of a mechanical joint or the like and pressing and rotating the grip part along the screw forming direction.

[0012]

【Example】

 As shown in FIGS. 1 and 2, a pipe tool according to a first embodiment of the present invention has a rod-shaped grip portion 1 and a substantially U-shape integrally provided on one side surface of one end portion of the grip portion 1. The tube bending portion 2 and a substantially U-shaped screw tightening portion 3 integrally formed on the side surface of the other end of the grip portion 1 in the opposite direction to the tube bending portion 2.

The tube bending section 2 has a pair of tube holding pieces 2 a, 2 a that are parallel to each other with a predetermined facing interval α, and both of the tube holding pieces 2 a, 2 a are in the longitudinal direction of the holding section 1. On the other hand, so as to be along a direction perpendicular to each other in a plan view, that is, as shown in FIG. The pipe fitting port 2b formed between the two pipe holding pieces 2a, 2a is fitted into the pipe 4 (see FIG. 5) to be bent, and the grip portion 1 is pressed and rotated in the bending direction. The tube 4 can be bent at a predetermined angle only by performing the above operation.

The screw tightening portion 3 is formed in substantially the same shape as the head of a so-called spanner, and the screw fitting port 3 a formed at the tip of the screw tightening portion 3 is used for screwing a sprinkler head or a mechanical joint. After being fitted to the portion, the screw can be tightened or loosened by pressing and rotating the grip portion 1 along the screw forming direction.

The gripping portion 1 is formed in a generally I-shaped vertical and horizontal cross-sectional shape along the screw tightening direction of the screw tightening portion 3. Since the bending direction is orthogonal to the screw tightening direction, as shown in FIG. 4, a pair of reinforcing ridges 1a, 1a are integrally provided on both side surfaces of the grip portion 1 to form a substantially cross shape. It is formed in a cross-sectional shape so that it can sufficiently withstand an excessive load applied to the grip portion 1 when tightening the screw and bending the pipe 4.

Next, the procedure for bending the pipe 4 with a piping tool will be described with reference to FIG. 5. First, the pipe 4 to be bent here may be a normal straight pipe, but in the same figure (a ), It is preferable to use a tube in which the nodes 4a are expanded in diameter (or reduced in diameter) in advance at appropriate intervals because they are easier to bend. When bending, prepare a pair of pipe tools, fit the pipe bending portions 2 of both tools into the pipe 4 with an appropriate node 4a sandwiched between them, and then hold the gripping portions 1 of both tools with both hands. It is possible to bend the pipe 4 around the node 4a by a predetermined angle as shown by the phantom line in the figure by simply grasping with and pressing and rotating one of the tools in the direction in which it is bent.

Here, it is preferable that the pipe bending portions 2 of both the tools are fitted to the pipe 4 so as to face each other. Then, as shown in FIG. 2B, the gripping portions 1 of both tools are displaced from each other, and the gripping portions 1 can be rotated in an intersecting manner so as not to interfere with each other. Therefore, the bending work of the pipe 4 can be smoothly performed.

In the above-described embodiment, the tube holding pieces 2a, 2a of the tube bending portion 2 are provided along the direction orthogonal to the longitudinal direction of the grip portion 1 in a plan view, but as shown in FIGS. 6 and 7. In addition, the two tube holding pieces 2a, 2a are along the inclined direction in a plan view with respect to the longitudinal direction of the grip portion 1, that is, the opposing angle θ between the two tube holding pieces 2a, 2a and the axis O of the grip portion 1 is It may be set to have an obtuse angle or an acute angle (second embodiment).

According to the above configuration, as shown in FIG. 8A, the gripping portions 1 of both tools are crossed in a substantially X shape according to the work space of the work site, or as shown in FIG. 8B. As shown, the grips 1 of both tools can be arranged in a substantially V shape, and the pipe 4 can be bent in the same procedure as in the first embodiment. And, in particular, as shown in FIG. 3A, even when there is an obstacle 6 such as a wall adjacent to the bent portion of the pipe 4, the bending work should be performed without being obstructed by the obstacle 6. You can

In the first and second embodiments, the pipe bending portion 2 is integrally provided at one end of the grip portion 1 and the screw tightening portion 3 is integrally provided at the other end thereof. However, the present invention is not limited to this. However, as shown in FIG. 9, the pipe bending portion 2 and the screw tightening portion 3 are integrally projectingly provided at one end of the grip portion 1 in opposite directions, and the grip 7 is provided at the other end of the grip portion 1. May be formed, and instead of the cross-sectionally I-shaped or cross-shaped gripping portion 1, a gripping portion 1 made of a metal pipe may be used (third embodiment).

In the above configuration, the tube holding pieces 2a, 2a of the bent portion 2 of the tube are arranged so that the tube holding pieces 2a, 2a are along the longitudinal direction of the holding portion 1 in the inclined direction in a front view, that is, the tube holding pieces 2a, 2a and the holding portion 1 are arranged. The facing angle β with respect to the axis O is set to be an acute angle or an obtuse angle so that the piping work can be performed smoothly as in the second embodiment.

In each of the above-described embodiments, the pipe bending portion 2 and the screw tightening portion 3 are arranged in opposite directions, which are offset from each other by 180 °, but the two and the two may be oriented in directions offset by 90 ° from each other. ..

[0023]

[Effect of the device]

 According to the invention of claim 1, the pipe bending portion is fitted into the pipe to be bent, and the rod-shaped gripping portion is pressed and rotated in the direction to be bent, whereby the pipe is operated in a very simple manner. Can be easily bent at a predetermined angle, is lightweight and easy to carry, and has a simple structure that is easy to operate and easy to use.

According to the second aspect of the present invention, since the pair of pipe clamping pieces of the pipe bending portion are provided along the inclined direction with respect to the longitudinal direction of the gripping portion, it is possible to match the work space of the work site with the work space. The pipe bend can be fitted into the pipe so that the grip is oblique to the pipe to be bent, even if there is an obstacle such as a wall adjacent to the bend of the pipe. The bending work can be performed without being obstructed by the obstacle.

According to the invention of claim 3, since the substantially U-shaped screw tightening portion is integrally provided at one end or the other end of the grip portion, only one pipe tool can be used. It is possible to efficiently perform pipe bending work and screw tightening work for sprinkler heads, mechanical joints, etc., and it is possible to significantly reduce the number of tools brought to the work site compared to the conventional method.

[Brief description of drawings]

FIG. 1 is a perspective view of a piping tool according to a first embodiment of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a view on arrow AA of FIG.

FIG. 5 (a) is a schematic explanatory view showing a usage state of the tool,
(B) is a BB arrow line view of Fig.5 (a).

FIG. 6 is a front view of a piping tool according to a second embodiment of the present invention.

FIG. 7 is a plan view of the same.

8A and 8B are schematic explanatory views showing a usage state of the tool.

FIG. 9 is a front view of a piping tool according to a third embodiment of the present invention.

[Explanation of symbols]

 1 gripping part 2 pipe bending part 2a pipe clamping piece 3 screw tightening part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kazuo Asada Inventor Kazuo Asada 4-1-1 Honmachi, Chuo-ku, Osaka-shi, Osaka Inside Takenaka Corporation Osaka Main Store (72) Inventor Shigenori Karajiya 153 Tajime-cho, Kishiwada-shi, Osaka One day at the Steel Pipe Fitting Co., Ltd. (72) Inventor Yoshiro Okazaki, 153, Tajime-cho, Kishiwada-shi, Osaka One day at the Steel Pipe Fitting Co., Ltd. (72) Shozaburo Noda, 153-1, Tajime-cho, Kishiwada-shi, Osaka Nippon Steel Pipe Fitting Co., Ltd.

Claims (3)

[Scope of utility model registration request] 1. A substantially U-shaped tube bending portion having a pair of tube holding pieces that are parallel to each other at a predetermined opposing interval is integrally provided on one end of the rod-shaped grip portion. Plumbing tool to do. 2. The pipe tool according to claim 1, wherein the pair of pipe clamping pieces are provided along an inclined direction with respect to a longitudinal direction of the grip portion. 3. The pipe tool according to claim 1, wherein a substantially U-shaped screw tightening portion is integrally projectingly provided at one end or the other end of the grip portion.