JP2002156073A - Pipe holding member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure the strength of a pipe and prevent a power cylinder and the pipe from deviating from a specified scope. SOLUTION: Engaging parts 2, 2 of a resin-made pipe holding member 1 foldable in two are fittedly set in a boss 5 of a power cylinder main body 4. By folding the pipe holding member 1 in two, a holding part 3 becomes U-shaped, and the pipe 7 is inserted into the U-shaped part.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a pipe holding member for fixing a pipe connected to a power cylinder body within a specified range.

[0002]

2. Description of the Related Art For example, in the case of a power cylinder used for a power steering device, a plurality of pipes are connected to the power cylinder body. This pipe connects, for example, the bottom oil chamber of the power cylinder to one cylinder supply port, or connects the rod oil chamber to the other cylinder port. The power cylinder to which the pipes are connected in this way is configured so that the entire area thereof falls within a specified range. Because, when assembling this to a vehicle or the like, the position where each component is stored is determined, and if the pipe of the power cylinder protrudes from the specified range, this pipe interferes with other components,
This is because they will collide.

[0003] However, due to an assembling error between the power cylinder and the pipe, the pipe may run out of a specified range. Further, even if the pipes are assembled so that they fall within the specified range, when the pipes are transported or stored in a vehicle, the pipes may be displaced and protrude from the specified range. If the pipe protrudes from the specified range in this way, other constituent members may collide with the pipe, and the pipe may be slid and a hole may be formed in the pipe.

Therefore, the pipe is held by the power cylinder at a portion other than the portion connected to the power cylinder by a pipe holding member so that the pipe does not protrude from a specified range. The pipe holding member is made of metal, and the pipe holding member firmly holds the pipe via a rubber member. That is, there is little play between the rubber member and the pipe.

[0005]

However, since the metal holding member has a very high rigidity, if the pipe is fixed with the metal holding member, even if the pipe is slightly displaced, a large stress is applied to the holding portion of the pipe. Will remain. In particular, the outermost pipe among the plurality of pipes is likely to collide during transportation or assembling, and large stress tends to remain in the pipe holding portion. In addition, since the metal holding member keeps the state where the stress remains in the pipe, the stress always remains locally and in the same place in the pipe.

[0006] As described above, if local stress always remains in the pipe, there is a problem that the pipe is easily broken. An object of the present invention is to provide a piping holding member in which a power cylinder and a pipe do not protrude from a specified range and large stress does not remain in the pipe.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a pipe holding member for holding a pipe connected to a power cylinder main body to the power cylinder main body. Are formed at both ends of the pipe, and a U-shaped part is formed in the pipe holding part so that the engaging parts are overlapped with each other. The engaging portions are fixed to the power cylinder body.

[0008]

1 and 2 show an embodiment of the present invention. FIG. 1 shows a pipe holding member, and FIG. 2 shows a state where the pipe holding member is assembled to a power cylinder body. As shown in FIG. 1, the pipe holding member 1 is provided with engaging portions 2 and 2 at both ends thereof,
Holes 2a, 2a are formed in the engaging portions 2, 2. A holding portion 3 for holding the pipe is formed between the engaging portions 2 and 2, and the holding portion 3
Has a smaller thickness. Since the thicknesses of the engaging portions 2 and 2 and the holding portion are changed in this way, a step r is formed between them.

The pipe holding member 1 as described above is made of resin, and is used by overlapping the holes 2a, 2a of the engaging portions 2, 2 so as to be folded in two. Further, when the pipe holding member 1 is folded in two in this manner, the pipe holding member 1 is bent such that the step portion r is on the inside. When the pipe holding member 1 is folded in two in this manner, since the pipe holding member 1 is made of resin, the elasticity of the pipe holding member 1 causes the holding portion 3 to be U-shaped.
It becomes shaped. The pipe is held inside the U-shaped part of the holding part 3. FIG. 2 shows a state where the pipe holding member 1 is attached to the power cylinder body 4.

A plurality of pipes are connected to the power cylinder body 4. When connecting the pipes to the power cylinder body 4, the pipes are connected via bosses 5. The boss 5 is provided on the power cylinder body 4 side when the power cylinder body 4 is manufactured. Then, before connecting the pipe 6 to the boss 5, the holes 2a, 2a of the engaging portions 2, 2 of the folded pipe holding member 1 are set so as to fit into the boss 5. Boss 5 like this
After setting the engaging portions 2 and 2, the pipe 6 is connected to the boss 5.

Specifically, when the engaging portions 2 and 2 are set on the boss 5, the holding portion 3 becomes U-shaped. When the holding portion 3 is formed in a U-shape in this way, the pipe 7 is passed through the inside of the U-shape. By moving the pipe 7 through the holding unit 3 in this manner, the movement of the pipe 7 is regulated. That is, the holding member 1 can restrict the movement of the pipe 7 from moving away from the boss 5 of the power cylinder body 4 in the radial direction. When the pipe 7 is passed through the holding portion 3 of the pipe holding member 1, the pipe 7
The length of the pipe holding member 1 is set so that it does not protrude from the regulation range even if it is shifted in the radial direction with respect to. As described above, since the movement of the pipe 7 so as to separate from the boss 5 in the radial direction is restricted, the pipe 7 does not fall out of the restricted range. Therefore, even when the power cylinder is assembled to a vehicle, the other components do not collide with the pipe 7, and the pipe 7 can be prevented from being damaged.

Moreover, since the pipe holding member 1 is made of resin, it has elasticity, so that even when the pipe 7 is displaced from the boss 5 of the power cylinder body 4 in the radial direction, the pipe 7 is displaced. No large stress is left locally. Therefore, the pipe 7 does not break due to stress. Further, since the holding portion 3 of the pipe holding member 1 is U-shaped, even when the pipe 7 is shifted to approach the boss 5 in the radial direction, the pipe 7 is locally stressed. Does not work. Therefore, the pipe 7 is not damaged when the pipe 7 is shifted away from the boss 5 or when the pipe 7 is shifted closer to the boss 5.

When the pipe holding member 1 is folded in two, the step portion r is located inside, so that when the pipe 7 is shifted to approach the boss 5, the pipe portion 7 is Movement can be regulated.

In this embodiment, the engaging portions 2 and
Although 2 is set on the boss 5, the setting of the engaging portions 2 and 2 is not limited to the boss 5. Further, the pipes 7 are passed through the holding portions 3 after the engaging portions 2 and 2 are set on the boss 5. Of course. This assembling procedure is not limited.

[0015]

According to the present invention, since the pipe connected to the power cylinder is held by the elastic pipe holding member, it is possible to prevent the pipe from protruding outside the restricted range. Of course,
In the holding portion, no large stress is left locally on the pipe. Therefore, breakage of the pipe can be prevented.

[0016]

[Brief description of the drawings]

FIG. 1 is a view showing a pipe holding member 1;

FIG. 2 is a diagram when the pipe holding member 1 of FIG. 1 is attached to a power cylinder main body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pipe holding member 2 Engaging part 3 Holding part 4 Power cylinder main body 5 Boss 6 Pipe 7 Pipe

Claims (1)

[Claims] 1. A pipe holding member for holding a pipe connected to a power cylinder body to the power cylinder body, a pipe holding portion having elasticity and holding the pipe, and engagement formed at both ends of the pipe holding portion. Along with providing a portion, the engaging portions are overlapped with each other,
A pipe holding member having a configuration in which a U-shaped portion is formed in a pipe holding portion, the pipe is held in the U-shaped portion, and the overlapped engaging portions are fixed to a power cylinder body.