JP2015218764A - Shock absorber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a shock absorber which can suppress the deformation of a bracket when a large load is applied to the bracket.SOLUTION: This shock absorber comprises a shock absorber main body having an outer cylinder 1, and a bracket 2 fixed to the outer cylinder 1. The bracket 2 has an abutment part 3 which abuts on an external peripheral face of the outer cylinder 1, and an attachment member 6 which is arranged while erecting on the abutment member 3. The abutment member 3 is composed of one or more first abutment pieces 4 and one or more second abutment pieces 5, the first abutment pieces 4 and the second abutment pieces 5 are aligned in a circumferential direction of the outer cylinder, and anti-second abutment side faces of the first abutment pieces 4 and anti-first abutment side faces of the second abutment pieces 5 are fused to the external peripheral face of the outer cylinder 1.

Description

  The present invention relates to a shock absorber.

  Conventionally, a shock absorber provided in a vehicle includes a shock absorber body having an outer cylinder and a bracket fixed to the outer cylinder, and the brake hose is held by the bracket or a stabilizer is connected. There is something that is.

  For example, the shock absorber disclosed in Patent Document 1 includes a bracket 20 for a brake hose, and the bracket 20 follows the shape of the outer periphery of the shock absorber main body 21 in the circumferential direction as shown in FIG. And a hose fixing surface 23 erected vertically from the damper mounting surface 22, and has an L-shape.

  The hose fixing surface 23 is provided with a hose fixing hole 24 through which the brake hose passes. The hose fixing surface 23 supports the brake hose.

  Further, the damper mounting surface 22 extends from one end of the hose fixing surface 23, and has a notch 25 with the tip cut out in a U-shape.

  And this bracket 20 is fixed to a buffer body by welding the bottom part of the notch part 25 to the outer surface of the outer cylinder 21 in a buffer body.

JP 2000-283206 A

  When the bracket fixed to the shock absorber body as described above is used to connect the stabilizer, a larger load is applied to the bracket than when the bracket is used to support the brake hose. Become.

  At present, when the bracket is used for the purpose of connecting a stabilizer, there is no problem with how to fix the bracket, but depending on the destination of the vehicle on which the shock absorber is mounted and the vehicle type, a larger load may be applied to the bracket. In some cases, the bracket may be deformed if the above-described fixing method is adopted.

  That is, in the conventional bracket 20, as described above, the notch 25 provided at the tip of the damper mounting surface 22 is welded and fixed to the shock absorber body, and the place to be welded to the outer cylinder 21 is the outer cylinder. By being only from one side with respect to the circumferential direction of 21, the damper mounting surface 23 of the bracket 20 is peeled off from the outer periphery of the outer cylinder 21 when a load larger than the assumed load is applied to the bracket 20. There is a possibility of deformation.

  Therefore, the present invention was devised to improve the above-mentioned problems, and the object of the present invention is to provide a shock absorber capable of suppressing the deformation of the bracket against a large load. is there.

  In order to solve the above-described object, the problem solving means in the present invention includes a shock absorber body having an outer cylinder and a bracket fixed to the outer cylinder, and the bracket abuts on an outer peripheral surface of the outer cylinder. A contact member and a mounting member provided upright on the contact member, the contact member comprising one or more first contact pieces and one or more second contact pieces; The contact piece and the second contact piece are arranged side by side in the circumferential direction of the outer cylinder, and the side surface of the anti-second contact piece in the first contact piece and the anti-first contact in the second contact piece One side is welded to the outer peripheral surface of the outer cylinder.

  The shock absorber of the present invention suppresses deformation of the bracket by welding and fixing the first contact piece and the second contact piece of the contact member to the outer cylinder of the shock absorber body from both sides in the outer cylinder circumferential direction. it can.

It is a figure of the outer cylinder and bracket of the shock absorber body according to the first embodiment. It is a half-cut sectional view of the outer cylinder and bracket of the shock absorber body according to the first embodiment of the present invention. It is a figure of the outer cylinder and bracket of the shock absorber body according to the second embodiment. It is a half-cut sectional view of the outer cylinder and bracket of the shock absorber body according to the second embodiment of the present invention. It is a figure of the outer cylinder and bracket of the conventional shock absorber main body. It is a half-cut sectional view of the outer cylinder and bracket of a conventional shock absorber body.

  Hereinafter, a shock absorber according to an embodiment of the present invention will be described with reference to the drawings. Of the illustrated members, members denoted by the same reference numerals throughout several drawings indicate the same members.

  A shock absorber S according to an embodiment of the present invention includes a shock absorber main body having an outer cylinder 1 and a bracket 2 fixed to the outer cylinder 1 as shown in FIG. The abutting member 3 abuts on the outer peripheral surface of the cylinder 1 and an attachment member 6 provided upright on the abutting member 3. The abutting member 3 is connected to one or more first abutting pieces 4. The first abutting piece 4 and the second abutting piece 5 are arranged side by side in the circumferential direction of the outer cylinder 1, and the first abutting piece 4 is opposite to the second abutting piece 5. The two contact piece side surfaces and the anti-first contact piece side surface of the second contact piece 5 are welded to the outer peripheral surface of the outer cylinder 1.

  Each part will be described in detail below. Although not shown, the shock absorber main body is connected to the outer cylinder 1, a cylinder disposed inside the outer cylinder 1, a rod slidably inserted into the cylinder, and a rod, and slides in the cylinder. And a movable piston. The cylinder is partitioned into a rod side chamber and a piston side chamber by the piston, and the rod side chamber and the piston side chamber are filled with liquid. Further, a reservoir filled with gas and hydraulic oil is formed between the cylinder and the outer cylinder, and hydraulic oil corresponding to the volume of the rod entering and leaving the cylinder is supplied and discharged from the reservoir. Of course, the structure of the shock absorber body is not limited to this.

  As shown in FIG. 2, the bracket 2 fixed to the outer cylinder 1 of the shock absorber body formed in this way has an abutting member 3 composed of a first abutting piece 4 and a second abutting piece 5 on the outside. The stabilizer can be connected to the shock absorber by using a hole 7 which is fixed by welding to the cylinder 1 and is bored in the mounting member 6 provided upright with respect to the contact member 3.

  The attachment member 6 is provided so as to stand vertically to the first contact piece 4 and the second contact piece 5. The attachment member 6 can be raised at an angle other than perpendicular to the first contact piece 4 and the second contact piece 5.

  The attachment member 6 provided in this way has a hole 7, and the stabilizer is connected to the shock absorber S by passing the link portion of the stabilizer through the hole 7.

  The contact member 3 has a first contact piece 4 extending to one side in the circumferential direction of the outer cylinder 1 with respect to the mounting member 6 and a second contact piece 5 extending to the other side. The contact piece 4 and the second contact piece 5 are provided side by side in the outer cylinder circumferential direction.

  The first contact piece 4 is provided above and below the mounting member 6 with the second contact piece 5 interposed therebetween. Specifically, the first contact piece 4 is provided on the upper end of the mounting member 6 at the upper end in FIG. A piece 4a and a lower contact piece 4b provided at the lower end in FIG. 1 are provided.

  The upper contact piece 4 a and the lower contact piece 4 b having such a configuration are arcuate along the outer peripheral surface of the outer cylinder 1, and the upper contact piece 4 a and the lower contact piece 4 of the first contact piece 4. The tip of the side contact piece 4b on the side opposite to the second contact piece is a first welded surface 4c, 4d, and the bracket 2 is fixed to the outer cylinder 1 by welding the first welded surface 4c, 4d. Is done.

  The second contact piece 5 is the lower end 6 a of the attachment member 6, and is between the upper contact piece 4 a and the lower contact piece 4 b of the first contact piece 4, that is, the lower end of the attachment member 6. 6a is provided at the central portion in the axial direction of the outer cylinder.

  The second contact piece 5 having such a configuration has an arc shape along the outer peripheral surface of the outer cylinder 1, and the tip of the second contact piece 5 on the side opposite to the first contact piece is second welded. The bracket 2 is fixed to the outer cylinder 1 by welding the second welding surface 5a.

  As described above, the first welding surfaces 4c and 4d and the second welding surface 5a as welding positions for fixing the bracket 2 and the outer cylinder 1 are provided on both sides in the outer cylinder circumferential direction as viewed from the mounting member 6. The deformation of the bracket 2 can be suppressed. Further, the first contact piece 4 and the second contact piece 5 are provided on both sides in the outer cylinder circumferential direction as viewed from the mounting member 6, thereby ensuring the circumferential length of the outer cylinder 1 of the contact member 3. Since the distance between the welding position and the mounting member 6 can be shortened, even if a large load is input to the mounting member 6, the moment acting on the welded portion can be reduced, and the bracket 2 can be peeled off from the outer cylinder 1. It is suppressed.

  Furthermore, since welding is strong against compression, both sides are welded to the mounting member 6 so that one of the welded parts is always compressed regardless of the direction of the circumferential direction of the outer cylinder 1. Since it is on the side, the bracket 2 is resistant to peeling from the outer cylinder 1.

  In addition, in this example, the first contact piece 4 and the second contact piece 5 have the same length in the circumferential direction of the outer cylinder as viewed from the mounting member 6, and the axial vertical direction is line symmetrical at the center in the outer cylinder axial direction. It is set to become. With this configuration, the deformation of the bracket 2 can be suppressed regardless of which direction the force is applied to the bracket 2. In addition, it does not need to be line-symmetric in this way, and it is natural that deformation can be suppressed even if it is not line-symmetric.

  Subsequently, a second embodiment will be described in addition to the above embodiment. In the second embodiment, as shown in FIG. 3, the shape of the contact member 9 is different from the shape of the first embodiment.

As shown in FIG. 4, the contact member 9 of the second embodiment is provided on the other side with a first contact piece 10 extending on one side in the circumferential direction of the outer cylinder 1 with respect to the mounting member 6. The first contact piece 10 and the second contact piece 11 are provided side by side in the outer cylinder circumferential direction.

  The first contact piece 10 is provided above and below the mounting member 6 with the second contact piece 11 interposed therebetween. Specifically, the first contact piece 10 is an upper contact provided at the upper end in FIG. A piece 10a and a lower contact piece 10b provided at the lower end in FIG. 3 are provided.

  The upper contact piece 10 a and the lower contact piece 10 b configured as described above have an arc shape along the outer peripheral surface of the outer cylinder 1, and the upper contact piece 10 a and the lower contact piece 10 a of the first contact piece 10. The tip of the side contact piece 10b on the side opposite to the second contact piece is a first welding surface 10c, 10d, and the bracket 12 is fixed to the outer cylinder 1 by welding the first welding surface 10c, 10d. Is done.

  The second contact piece 11 is between the upper contact piece 10a and the lower contact piece 10b of the first contact piece 10 which is the lower end 6a of the attachment member 6, that is, the lower end 6a of the attachment member 6. It is provided in the central part in the outer cylinder axial direction.

The second contact piece 11 having such a configuration is provided at the lower end 6a of the mounting member 6 so as to be perpendicular to the outer cylinder as shown in FIG.
The circumferential length of the outer cylinder 1 of the second contact piece 11 is set so that the attachment member 6 and the anti-first contact piece side of the second contact piece 11 are substantially straight.

  The end of the second abutting piece 11 on the side opposite to the first abutting piece is a second welding surface 11a, and the bracket 12 is fixed to the outer cylinder 1 by welding the second welding surface 11a.

  As described above, the bracket 12 suppresses the deformation of the bracket 12 by providing the first welding surfaces 10c and 10d and the second welding surface 11a which are welded portions on both sides of the mounting member 6 in the circumferential direction of the outer cylinder. be able to.

  Further, since welding is strong against compression, both sides are welded to the mounting member 6, so that one of the welded parts is always applied regardless of the direction of the circumferential direction of the outer cylinder 1. Since it is on the compression side, the bracket 12 is resistant to peeling from the outer cylinder 1.

  Further, since the first contact piece 10 and the second contact piece 11 are provided so that the upper and lower sides in the axial direction of the outer cylinder are axially symmetric with respect to the mounting member 6, which direction is relative to the bracket 12. The deformation of the bracket 12 can be suppressed regardless of whether a force is applied. In addition, it does not need to be line-symmetric in this way, and it is natural that deformation can be suppressed even if it is not line-symmetric.

  This is the end of the description of the embodiment of the present invention, but the scope of the present invention is not limited to this range.

DESCRIPTION OF SYMBOLS 1 Outer cylinder 2,12 Bracket 3,9 Contact member 4,10 1st contact piece 5,11 2nd contact piece 6 Mounting member S Shock absorber

Claims (3)

A shock absorber body having an outer cylinder;
A bracket fixed to the outer cylinder,
The bracket includes a contact member that contacts the outer peripheral surface of the outer cylinder;
A mounting member provided upright on the contact member,
The contact member comprises one or more first contact pieces and one or more second contact pieces,
The first contact piece and the second contact piece are arranged side by side in the circumferential direction of the outer cylinder,
The shock absorber according to claim 1, wherein an anti-second contact piece side surface of the first contact piece and an anti-first contact piece side surface of the second contact piece are welded to the outer peripheral surface of the outer cylinder. 2. The shock absorber according to claim 1, wherein the first contact piece and the second contact piece are axially symmetrical in the axial direction at the center in the axial direction of the outer cylinder when viewed from the mounting member. The first contact piece has an arc shape along the circumferential direction of the outer cylinder, and is connected to both ends of the mounting member,
The second abutting piece has an arc shape along the circumferential direction of the outer cylinder or a shape that stands perpendicular to the outer cylinder, and is connected between the first abutting pieces of the mounting member. The shock absorber according to claim 1 or 2.

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