JP2002238134A - Retention device for pipe, and the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a retention device for a pipe, etc., which can keep high retention force of a pipe, etc., while maintaining high cut-off properties of vibration transmitted from the pipe, etc., to a body or vice versa. SOLUTION: This retention device 21 comprises a base part 22 and pipe- retaining parts 23-26 supported by the base part. Each pipe-retaining part has walls (30 and 31) comprising a recessed part, in which a pipe, etc., is accommodated and elastic pieces 34, extending aslant toward the recessed part from parts near the tips of the walls and is connected with the base part 22 via a hollow pipe-shaped cushion part 41 to be supported. The tips of the walls of the pipe retaining parts are connected with the walls of the adjacent pipe retaining parts or the adjacent walls continuous with the base part via short and flat thin connection pieces 43. The thin connection pieces are formed as thin flat plates, with the lengths in the longitudinal direction of the pipe being the same as those of the retaining parts and with slits 45 which extend in the longitudinal direction of the pipe are formed in them.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a holder such as a pipe for holding an elongated article such as a pipe or a wire harness to a member such as an automobile body.

[0002]

2. Description of the Related Art It is desirable that a support structure for mounting a long object such as a fuel pipe or a brake pipe of an automobile or a wire harness to a vehicle body has a vibration absorbing property so as not to transmit vehicle body vibration to the pipe or the like. . Heretofore, for the purpose of the vibration proof, a method of wrapping a vibration proof rubber around a pipe or the like and attaching it to a holder has been generally adopted. Since this method has poor workability, it is desired that the holder itself has a vibration-proof property. From this viewpoint, Japanese Patent Application Laid-Open No. Hei 7-310866 discloses a holding clip for a pipe or the like suitable for holding a fuel pipe.
It is shown that the tube holder is connected to the support via a hollow part. Such a clip is used to minimize the transmission of vibration of a pipe or the like to a vehicle body or the like (or the vibration of the vehicle body to a pipe or the like) when supporting a long and narrow article such as a pipe. It was designed. In the case of the disclosed clip for holding a tube or the like, 4
The structure in which the pipe holding parts are arranged in a row is shown,
There can be a noticeable difference in vibration isolation characteristics between the tube holders at the center of the row and the tube holders at the ends of the row.

[0003] Japanese Patent Application Laid-Open No. 2000-18433 discloses a holder such as a tube in which the above points are improved. This holder is shown in FIGS. In FIG.
The holder 1 includes a base 2 and a tube holder 3 supported by the base 2.
The tube holding portion 3 includes a curved wall portion 6 that forms a concave portion 5 that receives an elongated article such as a tube, and an elastic holding piece 7 that extends obliquely in the direction of the concave portion from the distal end portion of the curved wall portion 6. The tube holding portion 3 is connected to and supported by the base portion 2 via a hollow tubular cushion portion 9. The holder 1 includes a base 2 and a tube holder 3.
This is preferable because the vibration isolation characteristics of the holding portions 3 are good, and even when a plurality of holding portions 3 are arranged in a row, there is no noticeable difference in the vibration isolation characteristics of each holding portion 3.

[0004]

SUMMARY OF THE INVENTION The above-mentioned Japanese Patent Application Laid-Open No. 2000-1
In the holder of No. 8433, as shown in FIGS. 1 and 2, the distal end of the curved wall portion 6 of the tube holding portion 3 is connected to the adjacent tube holding portion via a bendable V-shaped thin connecting piece 10. 3 is connected to the tip of the curved wall portion 6. In addition, the pipe holding section 3
The distal end of the curved wall portion 6 is connected to the distal end of the adjacent base wall portion 13 via a thin connecting piece 11 that can be bent and slanted. These bendable thin connecting pieces 10 or 1
Although No. 1 was preferable in terms of blocking vibration, it was found that there was still room for improvement in terms of the holding strength of the tube holding portion 3. FIG. 2 showing a circle 14 in FIG.
This will be described with reference to FIG. In FIG. 2, when a force for extracting the pipe in the direction of arrow 17 is applied to the pipe 15 held by the pipe holding unit 3, both the thin connecting piece 10 and the thin connecting piece 11 can be bent. The piece 10 bends from the angle a to the angle b in FIG. 2, and accordingly, the right curved wall 6 in FIG. 2 bends to the right, and similarly, the thin connecting piece 11 also slightly bends and is adjacent to the wall 13. The curved wall portion 6 bends to the left. Accordingly, the entrance of the curved wall portion 6 is largely opened, and the elastic holding piece 7
The tube 15 also moves to the right side of the tube 15 and a sufficient locking force to the tube 15 cannot be obtained, so that it has been found that the tube 15 may fall out of the tube holding portion 3.

Accordingly, an object of the present invention is to provide a holder for a tube or the like for holding an elongated article such as a tube on a counterpart member such as a vehicle body, in a vibration isolating characteristic of vibration transmitted from the tube or the like to the vehicle body (or vice versa). It is an object of the present invention to provide a holding device such as a tube which maintains a high holding force of an elongated article such as a tube while maintaining a high holding force.

[0006]

In order to achieve the above object, the present invention comprises a base and a tube holder supported by the base, wherein the tube holder has a wall forming a recess for receiving an elongated article such as a tube. The tube holding portion is provided with a holding member such as a tube connected and supported to the base portion via a hollow tubular cushion portion. The tip of the wall portion of the tube holding portion is connected to the wall portion of the adjacent tube holding portion or to the wall portion integral with the adjacent base portion via a short flat thin connecting piece. And a holder for a pipe or the like. As described above, since the tube holding portion is connected to the base portion by the tubular cushion portion and the thin connecting piece, vibration isolating characteristics between the tube holding portion and the base portion are maintained at a high level. Is connected to the adjacent wall (or the base wall) by a short flat thin connecting piece, so if the wall is bent in the direction to open the entrance due to the removal force applied to the holding tube The thin connecting piece stretches and resists the bending thereof to prevent the wall from bending, and keeps the holding force of the tube high.

In a preferred aspect of the present invention, the base of the holder such as a tube has an elongated base and an upright standing upright from both ends of the base, and a plurality of tube holders extend along the length of the base. The tube holding portions are spaced apart from each other and are supported by the base portion. Each of the tube holding portions has a wall portion forming a concave portion for receiving an elongated article such as a tube, and an elastic holding portion extending obliquely in the direction of the concave portion from or near the tip portion of the wall portion. And each of the tube holding portions is connected to and supported by the base portion via a hollow tubular cushion portion, and further, the tube holding portion that is adjacent to the upright portion of the base portion is connected to the upright portion. The distal end of the wall on the near side is connected to the upright portion via a short flat thin connecting piece, and the distal end of the wall on the other side is connected to the adjacent via the short flat thin connecting piece. It is connected to the tip of the wall of the tube holder.

[0008] In the holder such as a tube, the thin connecting piece is formed as a thin flat plate having the same length as the holding portion in the longitudinal direction of the elongated article attached to the concave portion. A slit extending in the direction is formed. Thereby, the vibration cutoff characteristics can be further improved. At the base of the base, a connecting leg for connecting to a counterpart member such as a support bracket of the vehicle body is provided on the side opposite to the side to which the pipe holding part is connected, thereby providing An elongated article such as a tube can be attached to the side member. Separately from this, a mounting portion for mounting to a locking tool such as a stud mounted to a mating member may be formed on the base. Thus, an elongated article such as a pipe can be attached to a mating member such as a vehicle body.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described.
This will be described with reference to the drawings. 3 and 4 show the configuration of a holder 21 such as a tube according to the embodiment of the present invention.
5 and 6 show the holder 21 holding the tube, FIGS. 7 and 8 illustrate the holding force of the tube of the holder 21, and FIGS. 21 shows an example in which a tube, which is an elongated article, is attached to a vehicle body as a mating member by using the pipe 21. The holder 21 according to the present invention is made of an integrally molded product of plastic, and as shown in FIGS. 3 and 4, a base 22 and a plurality (four in the example shown) of tube holders supported by the base 22. Parts 23 to 26. The base 22 is
It comprises an elongated base 28 and an upright 29 extending upright from both ends of the base 28. The tube holders 23 to 26 are arranged side by side in the length direction of the elongated base 28 of the base 22. The outer tube holding portion 23 and the tube holding portion 26 are formed so as to hold a large diameter tube, and the inner tube holding portion 24 and the tube holding portion 25 are formed so as to hold a small diameter tube.

In FIG. 3, each of the tube holding portions 23 to 26 has a holding body portion 30 forming a bottom wall having a substantially semicircular cross section.
And an upright wall 31 standing upright from each end of the holding main body portion 30, and a recess for accommodating an elongated article such as a tube is formed therein. An inward holding projection 33 is formed on the inner surface of each of the two boundaries between the holding body 30 and the upright wall 31. At the outer end of each upright wall 31, an elastic holding piece 34 extending obliquely inward is formed. As shown in FIG. 6, the pipes 36 to 39 are placed in the pipe holding portions 23 to 26 such that the lower side and the lateral sides of the outer peripheral surface thereof respectively contact the central upper surface of the holding main body 30 and the projection 33. In this state, the upper side of the outer peripheral surface is held down by the two elastic holding pieces 34, and is held in each of the tube holding portions 23 to 26.

Further, a hollow tubular cushion portion 4 is provided on the outer lower surface of the holding main body portion 30 of each of the tube holding portions 23 to 26.
1 is formed. The lower side of the cushion part 41 is connected to the base part 28 of the base part 22 via a support post 42.
As described above, since each of the tube holding portions 23 to 26 is supported by the base portion 22 through the hollow tubular cushion portion 41, the cushion portion 41 provides a buffering action against vertical vibrations, Since the vibration of the pipe is hardly transmitted from the cushion portion 41 to the base portion 22, the cushion portion 41 functions as a vibration blocking unit.

As best shown in FIGS. 3 and 4, two adjacent tube holders 23 and 24, 24 and 25, 25 are shown.
And 26 are connected to each other at the end of the adjacent upright wall 31 via a short flat thin connecting piece 43. The thin connecting piece 43 is formed in a flat plate shape and hardly bends. Further, the tube holding portion 23 and the upright portion 29 (that is, the wall portion) of the base 22 adjacent to the tube holding portion 23 are connected via a short plate-shaped thin connecting piece 43. Similarly, the tube holding portion 26 and the upright portion 29 adjacent to the tube holding portion 26 are connected via a short flat connecting thin piece 43. Then, each flat thin connecting piece 43
Is formed as a thin flat plate having the same length as the tube holding portion in the longitudinal direction of the tube. Thus, the connecting piece 43
Is formed to be thin, so that the transmission of vibration in the horizontal direction between the tube holding portions is reduced, and the upright portion 2 of the base portion 22 is formed.
The transmission of lateral vibration between the tube 9 and the tube holders 23 and 26 is also reduced. Further, the thin connecting piece 43 can not only sufficiently resist the force even if a pulling force is applied from both sides, but also can sufficiently resist the pressing force even if a force is applied in the pushing direction without bending. it can. Therefore, even if a pulling force acts on the pipe and a force acts to deflect the upright wall 31 of the pipe holding section toward the upright wall of the adjacent pipe holding section, the thin connecting piece 43 is kept upright of the adjacent pipe holding section. The upright wall 31 which is stretched on the basis of the wall 31 and the pulling force acts on the tube does not bend. This keeps the holding strength of the tube high.

Further, each thin connecting piece 43 is formed with a slit 45 (see FIG. 4) extending in the longitudinal direction of the tube.
The slit 45 is formed at the center in the longitudinal direction of the tube,
Each thin connecting piece 43 connects the pipe holding parts 23 to 26 and the upright part 29 to each other at both ends of the slit 45. The formation of the slit further reduces the transmission of lateral vibration between the tube holding portions, and further reduces the transmission of lateral vibration between the upright portion 29 of the base portion 22 and the tube holding portions 23 and 26. . In addition, the size of the slit 45 is set to a size that can maintain the tension force of the thin connecting piece 43.

A locking leg 46 having a well-known anchor-type elastic locking claw is provided on a lower surface of a central portion of the base portion 28 in the longitudinal direction of the base portion 28.
Is provided. By inserting the locking leg 46 into a mounting hole of a vehicle body or a bracket fixed to the vehicle body, the holder 21 can be mounted on the vehicle body or the like.

FIG. 5 and FIG.
9 is shown. When attaching a fuel pipe, a brake oil pipe, or a pipe such as a wire harness to an automobile, generally, a holder 21 is delivered to a maker such as a fuel pipe or a wire harness. Holders 21 are attached at a plurality of predetermined positions so as to hold them. Next, a plurality of pipes such as a fuel pipe and a wire harness are delivered to an automobile maker while maintaining a predetermined design with a plurality of holders, and are attached to predetermined positions of the vehicle body using the holders 21 and the like. It is. Therefore, the state where the pipes 36 to 39 are held by the holder 21 shown in FIGS. 5 and 6 is also a state where the pipes 36 to 39 are transported to an automobile manufacturer. For example, when transporting in this state, a force may be applied to pull out the tubes 36 to 39 from the holder 21. In the conventional holder 1, as described with reference to FIG. However, the holder 21 according to the present invention does not come off even if a force for pulling the tubes 36 to 39 out of the holder 21 is applied. This will be described with reference to FIGS.

FIG. 7 shows a state in which a pulling force in the direction of arrow Y is applied to one tube 36. In this case, the pulling force Y of the pipe 36 applies a force Y1 to the pair of elastic holding pieces 34 and applies a force Y2 to the pair of thin connecting pieces 43. The thin connecting piece 43 is thin but does not bend. Therefore, the left thin connecting piece 43 applies the force Y2 to the base upright portion 29 as it is. Since the upright portion 29 has high rigidity, it receives the force without bending. At this time, the force of the force Y2 and the reaction force Y2 from the upright portion 29 act on the thin connecting piece 43. However, the thin connecting piece 43 does not bend due to the non-flexibility of the thin connecting piece 43, but is opposed to these forces. by this,
The elastic holding piece 34 on the left side is maintained in the posture locked to the tube 36 even when the force Y1 is applied. On the other hand, the right thin connecting piece 4 connected to the upright wall 31 of the adjacent tube holding portion 24
3 applies the force Y2 to the elastic holding piece 34 as the force Y3. This force acts on the tube 37 held by the tube holding portion 24, but since the tube 37 has high rigidity, the tube 37 receives the force without bending. The force of the force Y2 and the reaction force from the tube 37 and the elastic holding piece 34 act on the thin connecting piece 43, but they do not bend against the force. Therefore, even if the force Y1 accompanying the pulling force Y acts on the right elastic holding piece 34, the tube 3
6 is maintained as it is. In this way, even if a pulling force is applied to one tube, the inlet of the tube holding portion does not open, and the tube does not come out.

FIG. 8 shows a state in which a pulling force in the directions of arrows Ya and Yb is applied to two adjacent tubes 36 and 37. In this case, the pulling force Ya of one tube 36 applies a force Ya1 to the pair of elastic holding pieces 34 and applies a force Ya2 to the pair of thin connecting pieces 43. As described with reference to FIG. 7, since the upright portion 29 has high rigidity, the upright portion 29 receives the force without bending, and the thin connecting piece 43 applies a force of the force Ya2 and a reaction force of the same magnitude from the upright portion 29. Act against these forces without bending. For this reason, the left elastic holding piece 34 is maintained in the posture locked with the tube 36 even when the force Y1 is applied. On the other hand, a force Ya2 is applied to the right thin connecting piece 43 connected to the upright wall 31 of the adjacent tube holding portion 24. The pull-out force Yb of the other tube 37 is
A force Yb1 is applied to the pair of elastic holding pieces 34, and a force Yb2 is applied to the pair of thin connecting pieces 43. Therefore, the thin connecting piece 43 connecting between the pipe holding section 23 and the pipe holding section 24 includes the force Ya2 from the right elastic holding piece 34 on the right side of the pipe holding section 23 and the elastic holding piece 34 on the left side of the pipe holding section 24. , But does not bend against these forces. Therefore, both the elastic holding pieces 34 on the right side of the tube holding section 23 and the elastic holding pieces 34 on the left side of the tube holding section 24 are maintained in the postures locked to the tubes 36 and 37. Further, the force Yb1 of the elastic holding piece 34 on the right side of the tube holding section 24 is applied to the thin connecting piece 43 on the right side by the force Yb1.
b2 is added, but for the same reason as the thin connecting piece 43 on the right side of the tube holding portion 23 in FIG. 7, the right elastic holding piece 34 is also locked to the tube 37 even when the force Yb1 accompanying the pulling force Yb acts. The posture is maintained. In this way, even if a pulling force is applied to two adjacent pipes, the inlets of the respective pipe holding parts do not open, and the pipes do not come out.

FIG. 9 shows an example in which the holder 21 is attached to a vehicle body 47. The holder 21 is attached to the mounting bracket 49 by inserting the locking leg 46 into a hole formed in the mounting bracket 49. The mounting bracket 49 is attached to the vehicle body 47 at one end by a bolt 51 and a nut 53 via an elastic bush 50, and
6 to 39 are held by the vehicle body 47. Thus, the vibration from the pipe is not transmitted to the vehicle body 47, and the vibration from the vehicle body 47 is not transmitted to the pipes 36 to 39, and a pulling force acts on the attached pipe. The tube does not fall out, and a high supporting force is maintained.

FIG. 10 shows another embodiment of the present invention. Portions corresponding to the structure of the above-described embodiment are denoted by the same reference numerals, and detailed description is omitted. In this example,
The structure of the individual tube holders 23 to 26 is the same as in the embodiment shown in FIGS. Pipe holder 23-2
Each 6 is supported by the base 22 via a hollow tubular cushion portion 41. The tube holding portions 23 to 26 are connected to each other via thin connecting pieces 43, and the tube holding portion 23 is connected to the upright portion 29 of the base 22 via the thin connecting pieces 43. A slit 45 shown in FIG. 4 is formed in each of the thin connecting pieces 43.

At one end of the elongated base portion 28 of the base portion 22, a stud mounting portion 54 is formed so as to stand upright instead of the wall-shaped upright portion. Stud mounting part 54
Is a rectangular block shape and has a through hole 5
5 Two pairs of locking claws 57 and 58 extending toward the inside of the through hole 55 are formed in the stud mounting portion. Studs 59 are erected on the vehicle body 47. When the holder 21 is pressed against the vehicle body 47 so as to receive the stud 59 into the through hole 55 of the stud mounting portion 54, the two-stage locking claws 57 and 58 engage with the screws of the stud, and the holder 21 The pipes 36 to 39 are fixed to the body 47 and are held by the vehicle body 47. Also in this case, the vibration from the pipe is not transmitted to the vehicle body, the vibration from the vehicle body is not transmitted to the pipe, and even if a pulling force acts on the attached pipe, the pipe does not come off and a high support force is maintained. Is done.

[0021]

According to the present invention, since the tube holding portion is connected to the base by the tubular cushion portion and the thin connecting piece, vibration isolating characteristics between the tube holding portion and the base can be maintained high. Since the tip of the wall is connected to the adjacent wall (or the base wall) by a short flat thin connecting piece,
Even if a pulling-out force is applied to the holding tube and the wall portion tries to bend in the direction to open the entrance, the thin connecting piece stretches and resists the bending, preventing the wall portion from bending and keeping the holding force of the tube high. it can.

[Brief description of the drawings]

FIG. 1 is a front view of a conventional (Japanese Unexamined Patent Publication No. 2000-18433) a holding tool such as a pipe in a used state.

FIG. 2 is an enlarged view of a circle 14 in FIG.

FIG. 3 is a front view of a holder such as a tube according to the present invention.

FIG. 4 is a plan view of the holder of FIG. 3;

FIG. 5 is a plan view of a holder showing a state where the tube is held by a holder such as a tube according to the present invention.

FIG. 6 is a front view of the holder of FIG. 5;

FIG. 7 is an explanatory diagram showing a relationship between forces when a force for extracting one pipe is applied by enlarging a left portion of FIG. 6;

FIG. 8 is an explanatory diagram showing a relationship between forces when a force for extracting two adjacent pipes is applied by enlarging a left portion of FIG. 6;

FIG. 9 is a front view of a holder showing one embodiment of attaching a holder such as a pipe according to the present invention to a vehicle body.

FIG. 10 is a front view of a holder according to another embodiment for attaching a holder such as a pipe according to the present invention to a vehicle body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Conventional holding | maintenance tool, such as a pipe | tube 2 Base part 3 Tube holding | maintenance part 5 Recessed part 6 Curved wall part 7 Elastic holding piece 9 Cushion part 10 Thin connection piece 11 Thin connection piece 13 Base wall part 14 Circle 15 Tube 21 The pipe which concerns on this invention 22 base 23-26 tube holding part 28 base part 29 upright part 30 holding body part 31 upright wall 33 holding projection 34 elastic holding piece 36-39 pipe 41 tubular cushion 42 support column 43 flat thin connecting piece 45 Slit 46 Locking leg 47 Body 49 Mounting bracket 51 Bolt 54 Stud mounting part 55 Through hole 57, 58 Locking claw 59 Stud

Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat II (Reference) H02G 3/38 F term (Reference) 3H023 AA04 AA05 AB01 AC35 AD13 AD54 3J022 DA15 EA16 EA33 EB02 EB14 EC14 EC22 ED26 FA05 FB03 FB12 FB16 HA01 HB05 HB06 3J039 AA05 BB01 FA01 FA06 FA17 5G363 AA11 BA02 BA07 DA13 DA15 DC02

Claims (5)

[Claims] 1. A base, and a tube holding portion supported by the base, wherein the tube holding portion has a wall forming a concave portion for receiving an elongated article such as a tube, and a tip portion of the wall portion or in the vicinity thereof. And an elastic holding piece extending obliquely in the direction of the recess from
The tube holding portion is a holding tool such as a tube connected and supported to the base portion via a hollow tubular cushion portion, wherein a tip of the wall portion of the tube holding portion is provided on a wall portion of an adjacent tube holding portion or A holder for a pipe or the like, which is connected to a wall integral with the adjacent base through a thin plate-shaped connecting piece. 2. A plurality of tube holders disposed at intervals along a longitudinal direction of the base, the base including an elongated base and uprights standing upright from both ends of the base, and supported by the base. Each of the tube holding portions includes a wall forming a recess for receiving an elongated article such as a tube, and an elastic holding piece extending obliquely in the direction of the recess from or near the tip of the wall. In each of the tube holding portions, a holding tool such as a tube connected to and supported by the base portion via a hollow tubular cushion portion, one of the tube holding portions adjacent to the upright portion of the base portion, The tip of the wall near the upright portion is connected to the upright portion via a short flat thin connecting piece, and the tip of the wall on the other side has a short flat thin connection. Connected to the end of the wall of the adjacent tube holding part via a piece. Holders such as pipes, characterized in that. 3. The holding tool such as a pipe according to claim 1, wherein the thin connecting piece has the same length as the holding portion in a longitudinal direction of the elongated article attached to the recess. A holding member such as a tube, wherein the holding member is formed as a thin flat plate having slits extending in a longitudinal direction of the article. 4. One of claims 1 to 3
A holding tool such as a pipe according to the item, wherein a connecting leg for connecting to a mating member is provided on a base of the base opposite to a side to which the pipe holding is connected. A holder for a pipe or the like, characterized in that: 5. The method according to claim 1, wherein:
Item 4. A holding device for a tube or the like according to the above item, wherein the base portion is provided with an attaching portion for attaching to a locking member such as a stud attached to a mating member. Utensils.