JPH08282993A - Pipe holding structure - Google Patents

Abstract

PURPOSE: To reduce a cost and improve assembly workability at fixedly holding time by reducing a number of part items, in a pipe holding structure for holding a plurality of pipes fixed to a machine base. CONSTITUTION: Pipes 4, 5 for operating oil are arranged so as to be along a frame 3 in an engine room of a forklift, to hold these pipes fixed through a holder 6. The holder 6 is provided with a holder main unit 7 and a bolt 8. The holder main unit 7 is provided with the first/second main unit parts 11, 12, to connect these main unit parts 11, 12 through a hinge part 13. The pipes 4, 5 are clamped by the first/second main unit part 11, 12 so as to position align a bolt hole 16 of each main unit part 11, 12, to hold the pipes fixed by stopping stop means 19, 23, etc. Further, the bolt 8 is inserted through the bolt hole 16, to screw a shaft part point end of the bolt 8 to a screw hole 3a of the frame 3. As compared with the conventional technique, the number of part items is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe holding structure, and more particularly to a pipe holding structure for holding and fixing a plurality of pipes such as hydraulic pipes for forklifts and hydraulic hoses to a machine base.

[0002]

2. Description of the Related Art Generally, many pipes such as pipes and hoses are arranged in an engine room such as a forklift, and these pipes must be held and fixed at predetermined positions. Usually, these pipes are arranged along the frame that forms the wall surface of the engine room,
It is held and fixed by using a fixture or the like at a predetermined position.

As shown in FIGS. 7 and 8, conventionally, the plurality of pipes 51 and 52 as described above are held and fixed to the frame 53 by, for example, the following holders 54. That is, the holding tool 54 includes a substantially rectangular pillar-shaped rubber elastic holding member 55, a metal plate 56, a collar 57,
A washer 58, a bolt 59 and the like are provided. A holding recess 61 for holding, for example, the two pipes 51, 52 is formed in the elastic holding member 55 so as to open on the upper surface in the drawing, and a bolt hole for inserting a bolt 59 is inserted in the central portion thereof. 62 is formed. Also, this bolt hole 6
A cylindrical collar 57 is fitted into the member 2. Further, the plate 56 has a width almost equal to that of the elastic holding member 55, and guides 63 for preventing deviation are integrally formed on both sides of the plate so as to extend downward in the drawing. A notch 64 is formed in the plate 56 so as to correspond to the bolt hole 62.

When the pipes 51 and 52 are held and fixed, first, the collar 57 is fitted in the elastic holding member 55, and the elastic holding member 55 is arranged at a predetermined position. Then, with the washer 58 passing through the bolt 59, the shaft portion of the bolt 59 is inserted into the collar 57, and the bolt 5 is inserted into the screw hole 53 a formed in the frame 53.
The tip of the shaft portion 9 is temporarily screwed. Next, the pipes 51 and 52 are fitted into the holding recesses 61 one by one. Then, the plate 56 is slid along the guide 63 from the lateral direction until the notch 64 contacts the shaft portion of the bolt 59. Then, the bolt 59 is completely tightened. By performing these series of operations, the piping 51, 5
2 is held and fixed to the frame 53 by a holder 54. In this technique, the presence of the collar 57 prevents the elastic holding member 55 made of rubber from being crushed and deformed.

[0005]

However, the above-mentioned prior art has the following problems. That is, first of all, the holding tool 54 includes the elastic holding member 55, the plate 56, the collar 57, the washer 58, the bolt 59, and the like, so that the total number of parts is relatively large. Therefore, the assembling work is complicated and the cost is increased.

Secondly, in the above technique, a plurality of pipes 51,
It is necessary to fit 52 into the holding recess 61 one by one. The width of the opening at the upper end of these holding recesses 61 is determined by the pipes 51, 5
Since it is considerably smaller than the outer diameter of No. 2, it was extremely troublesome to fit and the work had to be performed one by one. On the other hand, when the width of the opening portion is relatively large, the pipes 51 and 52 are likely to fall off, and it is necessary to perform fastening work and the like while paying attention to prevent the fall off. As a result, the assemblability was further deteriorated.

The present invention has been made in view of the above problems, and an object thereof is to reduce cost by reducing the number of parts in a pipe holding structure for holding and fixing a plurality of pipes to a machine base. Another object of the present invention is to provide a pipe holding structure capable of improving assembling workability at the time of holding and fixing.

[0008]

In order to achieve the above object, in the invention described in claim 1 of the present invention, a first main body portion having a first groove portion and a second main body portion having a second groove portion. Section, a hinge section connecting the first main body section and the second main body section, locking means provided on at least one of the first main body section and the second main body section, and the first main body section and the second main body section.
Of the holder main body made of synthetic resin having a bolt hole formed in the main body, a plurality of pipes are fitted in the first groove, and the second main body is arranged around the hinge. The bolt is rotated toward the first main body portion to cap the pipe in the second groove portion, and the first main body portion and the second main body portion are fixed to each other by the locking means, and the bolt is used. The gist is a pipe holding structure in which a bolt is inserted into the hole and screwed into a screw hole formed in the machine base.

Further, in the invention according to claim 2, the gist of the pipe holding structure according to claim 1 is that an elastic body is interposed between the first main body portion and the machine base. There is.

Further, in the invention according to claim 3, in the pipe holding structure according to claim 1 or 2, the peripheral edge of the first groove portion of the first main body portion and the second groove portion of the second main body portion. The gist is that the first holding piece and the second holding piece that project in the length direction of the pipe are integrally formed on the peripheral edge.

In addition, in the invention according to claim 4, in the pipe holding structure according to claim 3, the pipe is covered with the first holding piece and the second holding piece in a substantially circumferential shape. In addition, the gist is that the inner diameters of the first holding piece and the second holding piece in the absence of the pipe are smaller than the outer diameter of the pipe.

[0012]

According to the invention described in claim 1, a plurality of pipes are fitted in the first groove portion of the holder main body made of synthetic resin. Further, the second main body portion is rotated around the hinge portion toward the first main body portion, and the pipe is capped with the second groove portion. Further, the locking means provided on at least one of the first body portion and the second body portion allows the first body portion and the second body portion to be locked.
The body parts are fixed to each other. Then, the bolt is inserted into the bolt holes formed in the first main body portion and the second main body portion,
The bolt is screwed into the screw hole of the machine base. By this screwing, the plurality of pipes are held and fixed to the machine base.

According to the present invention, basically, the pipe is held and fixed only by the holder body and the bolt. Therefore, the number of parts is smaller than that in the above-mentioned conventional technique.

Further, the plurality of pipes can be easily held by the holder body, and it is not necessary to consider that the pipes fall off after being locked by the locking means. Therefore, the work for holding and fixing becomes remarkably easy.

According to the invention described in claim 2, in addition to the function of the invention described in claim 1, an elastic body is interposed between the first main body portion and the machine base. Therefore, when a fluid such as hydraulic oil flows in the pipe, vibration due to the pulsation during the flow can be absorbed and damped by the elastic body. Therefore, it is possible to prevent the vibration from being transmitted to the machine base to generate noise and the like.

Further, according to the invention of claim 3,
In addition to the action of the invention described in claim 1 or 2, in addition to the first groove peripheral edge of the first main body portion and the second groove peripheral edge of the second main body portion, the first groove protruding in the length direction of the pipe. The holding piece and the second holding piece are integrally formed. Therefore, the plurality of pipes are sandwiched between the holding pieces, and can be held more reliably by the holder body. In particular, if a fluid such as hydraulic oil flows in the pipe, as described above,
With these first holding piece and second holding piece, the vibration caused by the pulsation during the flow can be absorbed and damped by the elastic action.

In addition, according to the invention of claim 4,
In addition to the effect of the invention described in claim 3, the pipe is covered with the first holding piece and the second holding piece in a substantially circumferential shape. Along with this, the inner peripheral diameters of the first holding piece and the second holding piece in the state where the pipe does not exist are made smaller than the outer diameter of the pipe. Therefore, at the time of locking by the locking means, the pipe is clamped by the holding pieces with the first holding piece and the second holding piece bent in the outer peripheral direction. Therefore, the holding state can be further strengthened.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is embodied as a pipe holding structure for a forklift will be described with reference to the drawings.

As shown in FIG. 2, the engine room 2 of the forklift 1 is provided with a clutch body, a master cylinder, a power steering cylinder, a gear box and the like (all not shown). Further, in the engine room 2, a plurality of pipes (two pipes in this embodiment) 4 and 5 are arranged along a frame 3 as a machine frame constituting the engine room 2. ing. Hydraulic oil for driving various cylinders and the like flows in these pipes 4 and 5. Then, each of these pipes 4 and 5 is held at a plurality of locations (only one location is shown in the figure) with respect to the frame 3 by a holder 6
It is held and fixed through.

As shown in FIG. 1, the holder 6 in this embodiment includes a holder body 7 made of synthetic resin and a bolt 8. As shown in FIGS. 1 and 3, the holder main body 7 includes a plate-shaped first main body portion 11 and a second main body portion 12, and these 11 and 12 are connected via a hinge portion 13. There is. Each of the first body portion 11 and the second body portion 12 is formed with two first groove portions 14 and two second groove portions 15 each having a semicircular cross section so that the pipes 4 and 5 can be arranged. Has been done.

Further, the middle between the first both groove portions 14, that is, the substantially central portion of the first main body portion 11 and the second both groove portions 1
Bolt holes 16 are formed in the middle between the five, that is, in the substantially central portion of the second main body 12. In this embodiment, the bolts 8 are inserted into the bolt holes 16 in a state where the bolt holes 16 are aligned with each other, and the tip ends of the shaft portions of the bolts 8 are screwed into the screw holes 3a formed in the frame 3. Has become.

Further, a pair of two locking pieces 17 and 18 extending parallel to the longitudinal direction of the first groove portion 14 are provided at the upper end portion of the intermediate portion of the first main body portion 11 in directions opposite to each other. It is integrally formed. In addition, the first main body 11
A substantially T-shaped locking projection 19 having claw portions 19a at both ends is integrally formed at the end opposite to the hinge 13 so as to extend upward. On the other hand, on the other hand,
Two sets of substantially T-shaped locking protrusions 21 and 22 having claw portions 21a and 22a at both ends extending upward are integrally formed at an upper end portion of an intermediate portion of the second main body portion 12. A pair of locking pieces 23 is integrally formed at the end of the second main body 12 opposite to the hinge 13. In this embodiment, the locking pieces 17, 18, 23 and the locking protrusions 19, 21, 22 constitute a locking means.

In addition, a first holding piece 24 projecting in the longitudinal direction of the groove 14 is integrally formed on the peripheral edge of the end of the first groove 14 of the first body 11. Each of these first holding pieces 24 is formed in a substantially semicircular shape, and a cutout 24a is formed in a part thereof. Furthermore, the inner diameter of each of these first holding pieces 24 is
The inner diameter is smaller than the outer diameter of No. 5, and the inner diameter is smaller toward the tip side.

Similarly, a second holding piece 25 projecting in the lengthwise direction of the groove portion 15 is integrally formed on the peripheral edge of the second groove portion 15 of the second main body portion 12. Each of these second holding pieces 25 is also formed in a substantially semicircular shape, and a notch 25a is formed in a part thereof. Further, the inner diameter of each of the second holding pieces 25 is also formed to be smaller than the outer diameter of the pipes 4 and 5 as described above, and is smaller toward the tip end side.

In this embodiment, the first part of the holder main body 7 is
An elastic body 2 made of rubber is provided between the main body 11 and the frame 3.
6 is interposed. Next, details of the structure for holding the pipes 4 and 5 and the operation at the time of holding and fixing will be described.

First, as shown in FIG. 4, the pipes 4 and 5 are fitted into the first groove portion 14 of the first main body portion 11 of the holder main body 7. Next, the second centering around the hinge portion 13
The main body 12 is rotated toward the first main body 11. By this rotation, the pipes 4 and 5 are crowned in the second groove portion 15. Further, as shown in FIG. 5, the first body portion 11 and the second body portion 12 are aligned with each other. At this time, the claw portion 19a of the locking projection 19 is engaged with the locking piece 23. Further, the claw portions 21a, 22a of the locking protrusions 21, 22 are engaged with the locking pieces 17, 18. By these engagements, the first
The main body portion 11 and the second main body portion 12 are fixed to each other, and the pipes 4 and 5 are clamped by the holding portion main body 7. Further, as shown in FIG. 6, the pipes 4 and 5 are clamped by the first holding piece 24 and the second holding piece 25 by the mutual fixing of the first body 11 and the second body 12. Becomes At this time, the first holding piece 2
Since the inner diameter of the initial circumference formed by the fourth and second holding pieces 25 is smaller than the outer diameter of the pipes 4 and 5,
The holding piece 24 and the second holding piece 25 are bent in the outer peripheral direction. Therefore, the reaction force at this time causes the pipes 4 and 5 to move to the first holding piece 24 and the second holding piece 25.
Will be firmly supported and fixed by.

From this state, the bolt holes 1 integrated by positioning the first body portion 11 and the second body portion 12
The bolt 8 is inserted through 6. Then, the tip of the shaft portion of the bolt 8 is screwed into the screw hole 3 a of the frame 3. By this screwing, the plurality of pipes 4 and 5 are held and fixed to the frame 3.

As described above, according to the present embodiment, basically, the pipes 4, 5 are formed only by the holder body 7 and the bolt 8.
Will be held and fixed. Therefore, the number of parts is smaller than that of the above-described conventional technique. As a result, the cost required for holding and fixing can be significantly reduced.

Further, the plurality of pipes 4, 5 can be easily held by the holder body 7, and the pipes 4, 5 fall off after being locked by the locking means 17-19, 21-23. You don't have to consider it. Therefore, the work for holding and fixing becomes remarkably easy, and the assembling workability can be remarkably improved.

Further, in this embodiment, the periphery of the first groove portion 14 of the first main body portion 11 and the second groove portion 15 of the second main body portion 12 are arranged.
The first holding piece 24 and the second holding piece 25 are integrally formed on the periphery. Therefore, the plurality of pipes 4 and 5 are firmly sandwiched by the holding pieces 24 and 25, and can be more reliably held by the holder main body 7. Further, when the hydraulic oil flows in the pipes 4 and 5, the vibration caused by the pulsation during the flow is absorbed by the first holding piece 24 and the second holding piece 25.
Can be attenuated. Therefore, it is possible to prevent such vibration from being transmitted to the frame 3 and generating noise or the like.

In particular, in this embodiment, the pipes 4 and 5 are covered with the first holding piece 24 and the second holding piece 25 in a substantially circumferential shape, and the pipes 4 and 5 are not present. The inner diameters of the first holding piece 24 and the second holding piece 25 are made smaller than the outer diameters of the pipes 4 and 5. Therefore, at the time of the locking, the pipes 4 and 5 are clamped by the holding pieces 24 and 25 with the first holding piece 24 and the second holding piece 25 bent in the outer peripheral direction. Therefore, the holding state can be further strengthened. Further, since the notches 24a and 25a are formed in the holding pieces 24 and 25, respectively,
On the contrary, even when too large stress is applied to the holding pieces 24 and 25, the stress can be relieved by the bending of the holding pieces 24 and 25. Therefore, it is possible to prevent the holding pieces 24 and 25 from being damaged due to the stress. In addition, the vibration absorption and damping effects can be made more reliable.

In addition, in this embodiment, the elastic body 26 is interposed between the first main body 11 and the frame 3. Therefore, similarly to the above, when the hydraulic oil flows in the pipes 4 and 5, the vibration caused by the pulsation during the flow is also absorbed and attenuated by the elastic body 26. Therefore, it is possible to more reliably suppress the generation of noise and the like by transmitting such vibration to the frame 3.

The present invention is not limited to the above embodiment, but may be configured as follows, for example. (1) In the above-described embodiment, the elastic body 26 is interposed between the first main body portion 11 and the frame 3, but the elastic body 26 is not provided at a place where there is no need to worry about vibration. It doesn't matter. The material is not limited to rubber, but may be any material such as soft resin and coil spring. Further, the elastic body 26 may be integrally provided on the first body 11 by a known two-color molding method or the like. With such a configuration, an increase in the number of parts can be suppressed.

(2) In the above-mentioned embodiment, both the first main body 11 and the second main body 12 are formed in a solid shape. However, when the main body 11 and the second main body 12 are made of a highly rigid material, the inside is hollowed out, so to speak. It may be shaped.

(3) In the above embodiment, the locking means is constituted by the locking projections 19, 21, 22 and the locking pieces 17, 18, 23. However, as the locking means, the expanded diameter portion is used. Any configuration may be adopted, such as the relationship between the clip and the through hole that it has.

(4) In the above embodiment, the pipes 4 and 5 are used as the pipes, but the pipes may be applied to a flexible hose holding structure. Also, the piping is not limited to the one for a forklift,
It may be applied to a structure for holding a pipe for a vehicle, a harness (wiring), or any other pipe.

(5) In the above embodiment, the two pipes 4,
Although it has been embodied in the case where 5 is held and fixed, the number may be 3 or 4 or more as long as it is plural. (6) A washer may be interposed between the head portion of the bolt 8 and the second main body portion 12 in the above embodiment, or the washer may be omitted.

The technical idea which is not described in each claim of the claims and which can be grasped from the above-mentioned embodiment will be described below together with its effect. (A) In the pipe holding structure according to any one of claims 1 to 4, the machine base constitutes a part of a forklift,
Further, the pipe is characterized in that hydraulic oil for driving a forklift flows through the inside thereof.

(B) In the pipe holding structure according to the third and fourth aspects, notches are formed in the first holding piece and the second holding piece. With such a configuration, it is possible to prevent damage to each holding piece during holding and fixing.
Further, when a fluid such as hydraulic oil flows in the pipe, it is possible to prevent the generation of vibration and noise due to the pulsation during the flow.

[0040]

As described above in detail, according to the pipe holding structure of the present invention, in the pipe holding structure for holding and fixing a plurality of pipes to the machine base, the cost can be reduced by reducing the number of parts. In addition to the above, there is an excellent effect that the assembling workability at the time of holding and fixing can be improved.

In particular, according to the second aspect of the invention, when a fluid such as hydraulic oil flows in the pipe, it is possible to prevent the generation of vibration and noise due to the pulsation during the flow. it can.

According to the third and fourth aspects of the present invention, it is possible to prevent the generation of vibration and noise, and more firmly hold and fix the pipe.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a pipe holding structure according to an embodiment.

FIG. 2 is a partial perspective view showing an arrangement state of pipes in one embodiment.

FIG. 3 is a perspective view showing a holder body in one embodiment.

FIG. 4 is a perspective view illustrating an operation when holding a pipe.

FIG. 5 is a perspective view showing a state in which the holder body is locked.

FIG. 6 is a longitudinal sectional view showing a state in which the holder body is also locked.

FIG. 7 is a cross-sectional view showing a pipe holding structure according to a conventional technique.

FIG. 8 is an exploded perspective view showing a pipe holding structure according to a conventional technique.

[Explanation of symbols]

3 ... Frame as machine stand, 4, 5 ... Pipe as piping, 6 ... Holder, 7 ... Holder body, 8 ... Bolt, 11 ...
1st main-body part, 12 ... 2nd main-body part, 13 ... Hinge part, 14
... 1st groove part, 15 ... 2nd groove part, 16 ... Bolt hole, 1
7, 18, 23 ... Locking pieces constituting locking means, 19, 2
1, 22 ... Locking protrusions constituting locking means, 24 ... First holding piece, 25 ... Second holding piece, 26 ... Elastic body.

Claims (4)

[Claims] 1. A first main body having a first groove, a second main body having a second groove, a hinge connecting the first main body and the second main body, the first main body and the first main body. Of the holder main body made of synthetic resin, which is provided with locking means provided on at least one of the two main bodies and bolt holes formed in the first main body and the second main body, A plurality of pipes are fitted in the groove portion, the second main body portion is rotated around the hinge portion toward the first main body portion, and the pipe is crowned in the second groove portion. A pipe holding structure in which the first main body portion and the second main body portion are fixed to each other by a stopper, and a bolt is inserted into the bolt hole and screwed into a screw hole formed in a machine base. 2. The pipe holding structure according to claim 1, wherein an elastic body is interposed between the first main body portion and the machine base. 3. The first holding piece and the second holding piece protruding in the length direction of the pipe are provided on the first groove peripheral edge of the first main body and the second groove peripheral edge of the second main body. The pipe holding structure according to claim 1 or 2, wherein the holding pieces are integrally formed. 4. The first holding piece and the second holding piece cover the pipe in a substantially circumferential shape, and the first holding piece and the first holding piece in the absence of the pipe. The pipe holding structure according to claim 3, wherein an inner diameter of the second holding piece is smaller than an outer diameter of the pipe.