JP2019163826A - Suspension device for vehicle - Google Patents

Abstract

To disclose one embodiment of a suspension device for a vehicle which can suppress the lowering of the assembling performance of the suspension device for the vehicle.SOLUTION: In a rubber seat 9, a second positioning part is arranged in a region corresponding to a position which is displaced from an end part of a seat winding part 3A by a 0.4-winding or larger. By this constitution, at the assembling of a suspension device 1 for a vehicle, a second positioning part 9C is positioned at a spring seat 7 prior to a terminal correspondence part. Then, a center axial line Ls of a spring 3 becomes substantially parallel with a center axial line Ld of a damper 5, so that when a mount member is assembled to the damper 5 in a state that the second positioning part is positioned at the spring seat 7, the terminal correspondence part is automatically positioned in a prescribed region with respect to the spring seat 7. Therefore, the lowering of the assembling performance of the suspension device 1 for the vehicle can be suppressed.SELECTED DRAWING: Figure 8

Description

  The present disclosure relates to a vehicle suspension apparatus.

  For example, the vehicle suspension device described in Patent Document 1 includes a coiled spring, a damper, a metal spring seat, and a rubber rubber seat. The damper is a stretchable member that is disposed in the spring and exhibits a damping force.

  The spring seat is a dish-like plate connected to one end or the other end in the longitudinal direction of the damper. The rubber sheet is a rubber sheet disposed at the end winding part of the spring (the lower end part in Patent Document 1).

JP, 2006-191453, A

  By the way, in the vehicle suspension device in which the rubber sheet is joined to the end winding portion in advance, if the spring seat is inclined with respect to the expansion / contraction direction of the damper, the following problems occur when the vehicle suspension device is assembled.

  That is, at the time of assembling the vehicle suspension device, the spring is positioned so that the end of the end winding portion is positioned at a predetermined portion of the rubber seat, and the rubber seat is positioned at a predetermined portion of the spring seat. Positioned to position. That is, in the assembly work of the vehicle suspension device, the worker performs the assembly work so that the end of the end turn portion is located at a predetermined portion that is predetermined with respect to the spring seat.

  However, when the rubber sheet and the spring are joined in advance, the spring sheet is inclined with respect to the expansion / contraction direction of the damper. .) Is in contact with the spring seat prior to the terminal-corresponding portion.

  If a part different from the terminal corresponding part comes into contact with the spring seat before the terminal corresponding part, it becomes difficult to set the position of the rubber sheet with respect to the spring seat to a predetermined position. That is, in the configuration in which the rubber seat and the spring are joined in advance, the assemblability of the vehicle suspension device may be reduced.

  In the configuration in which the rubber seat and the spring are not joined in advance, the operator needs to perform the assembly work while positioning the terminal so that the terminal is located at a predetermined portion of the rubber seat when the vehicle suspension device is assembled. Therefore, it is difficult to reduce assembly man-hours.

  In view of the above points, the present disclosure discloses an example of a vehicle suspension device that can suppress a decrease in the assemblability of the vehicle suspension device.

  In the rubber seat (9) according to the vehicle suspension device, the rubber seat (9) with respect to the spring seat (7) is located at a position corresponding to a position shifted by 0.4 turns or more from the end of the end turn portion (3A). A positioning part (9C) for determining the position is provided.

  Thereby, at the time of the assembly of the said vehicle suspension apparatus, a positioning part (9C) is positioned with respect to a spring seat (7) ahead of a terminal corresponding | compatible part. And if a positioning part (9C) is positioned with respect to a spring seat (7), a terminal corresponding | compatible part will be automatically positioned by the predetermined site | part with respect to a spring seat (7). Therefore, it can be suppressed that the assemblability of the vehicle suspension system is lowered.

  Incidentally, the reference numerals in the parentheses above are examples showing the correspondence with the specific configurations described in the embodiments described later, and the present disclosure is limited to the specific configurations indicated in the reference numerals in the parentheses. It is not something.

It is a figure which shows the suspension apparatus for vehicles which concerns on embodiment. It is a figure which shows the spring which concerns on embodiment. It is a figure which shows the damper and spring seat which concern on embodiment. It is a figure which shows the rubber sheet which concerns on embodiment. It is a figure which shows the rubber sheet which concerns on embodiment. It is assembly explanatory drawing of the suspension apparatus for vehicles which concerns on embodiment. It is assembly explanatory drawing of the suspension apparatus for vehicles which concerns on embodiment. It is assembly explanatory drawing of the suspension apparatus for vehicles which concerns on embodiment.

  The following “embodiments of the invention” show examples of embodiments belonging to the technical scope of the present disclosure. In other words, the invention specific items described in the claims are not limited to the specific configurations and structures shown in the following embodiments.

  In addition, the arrow etc. which show the direction attached | subjected to each figure were described in order to make it easy to understand the relationship between each figure. The invention described in the present specification is not limited to the directions given to the drawings.

  At least one member or part described with at least a reference numeral is provided, except where “one” or the like is cut off. That is, when there is no notice such as “one”, two or more members may be provided.

(First embodiment)
1. Configuration of Vehicle Suspension Device A vehicle suspension device 1 shown in FIG. 1 is an example of a strut type suspension device for suspending a front wheel Fh. The vehicle suspension device 1 includes at least a spring 3, a damper 5, a spring seat 7, a rubber seat 9, and the like.

  The spring 3 is a spring in which a metal wire is formed in a coil shape. The spring 3 suspends the front wheel Fh while being elastically deformed mainly in the vertical direction. The damper 5 is disposed in the spring 3. The damper 5 generates a damping force that restricts the displacement of the front wheel Fh while expanding and contracting in conjunction with the elastic deformation of the spring 3.

  The damper 5 according to the present embodiment has a telescope shape that can be expanded and contracted in the vertical direction. Specifically, it is configured to have at least a cylinder portion 5A and a rod 5B that protrudes and retracts with respect to the cylinder portion 5A.

  The spring seat 7 is a metal member connected to one end side or the other end side in the longitudinal direction of the damper 5. The spring seat 7 according to the present embodiment is fixed to the cylinder portion 5A located on the lower end side of the damper 5 by a fixing method such as welding.

  The spring seat 7 transmits the force generated in the end winding portion 3A (see FIG. 2) on the lower end side of the spring 3 to the cylinder portion 5A, that is, the damper 5. The upper end side of the spring 3 is transmitted to the rod 5B via the mount member 10.

  The mount member 10 is a member for connecting the upper end of the vehicle suspension device 1 to a vehicle body (not shown). As shown in FIG. 1, the spring seat 7 has a dish shape that is inclined with respect to the expansion / contraction direction of the damper 5 (in this embodiment, the vertical direction).

  The rubber sheet 9 is a rubber sheet member joined to the end winding part 3A. The rubber sheet 9 is pressed toward the spring sheet 7 by the spring 3. The natural length of the spring 3 is larger than the distance between the spring seat 7 and the mount member 10 (see FIG. 6).

  That is, in a state where the spring 3 is assembled to the vehicle suspension device 1, the spring 3 is in a state of being bent and deformed in advance by a predetermined dimension due to the initial load. When the vehicle suspension device 1 is assembled to a vehicle, the vehicle suspension device 1 is further bent and deformed than the state shown in FIG. 1 due to the vehicle weight.

2. Detailed Configuration of Rubber Sheet The rubber sheet 9 is configured in a substantially horseshoe shape or a substantially C shape with hard rubber such as natural rubber-based rubber. As shown in FIG. 4, a groove 9 </ b> A is provided on the rubber sheet 9 side of the rubber sheet 9 along the rubber sheet 9.

  The groove 9A is a recess into which the end turn 3A is fitted. The end winding part 3A is bonded to the inner wall of the groove part 9A with an adhesive. As shown in FIG. 5, a first positioning portion 9 </ b> B and a second positioning portion 9 </ b> C are provided in a portion of the rubber sheet 9 that faces the spring seat 7.

  The first positioning part 9 </ b> B and the second positioning part 9 </ b> C are parts for determining the position of the rubber sheet 9 with respect to the spring seat 7. The 1st positioning part 9B is a site | part for determining the position of the said edge part provided in the site | part corresponding to the edge part of 3 A of end winding parts.

  The second positioning portion 9C is a portion that is provided at a portion corresponding to a position shifted by 0.4 turns or more from the end portion of the end turn portion 3A and determines the position of the portion. In addition, the 1st positioning part 9B which concerns on this embodiment is comprised by the hole part or recessed part which a protrusion-shaped member can fit. 9 C of 2nd positioning parts are comprised by protrusion shape.

  For this reason, as shown in FIG. 3, the spring seat 7 has a first positioning portion 7 </ b> A configured in a protruding shape, and a second positioning portion configured with a hole or a recess into which the protruding portion can be fitted. 7B is provided. The first positioning portion 7A is a protrusion that fits into the first positioning portion 9B. The second positioning portion 7B is a recess into which the second positioning portion 9C is fitted.

3. Features of the vehicle suspension device 1 according to the present embodiment At the time of assembling the vehicle suspension device 1, the spring 3 is positioned so that the end of the end turn portion 3A is located at a predetermined part of the rubber seat 9, and The rubber sheet 9 is positioned so that the predetermined portion is located at a predetermined portion of the spring seat 7 (see FIG. 1).

That is, in the assembly work of the vehicle suspension apparatus 1, the worker performs the assembly work so that the end of the end turn part 3 </ b> A is located at a predetermined position that is predetermined with respect to the spring seat 7.
In the assembling work of the vehicle suspension apparatus 1, as shown in FIG. 6, the worker assembles the spring 3 to which the rubber sheet 9 is bonded to the damper 5 to which the spring sheet 7 is fixed in advance.

  However, since the spring seat 7 is inclined with respect to the expansion / contraction direction of the damper, a part of the rubber sheet 9 that is different from a part corresponding to the end of the end winding part 3A (hereinafter referred to as a terminal corresponding part) is included. The spring seat 7 comes into contact before the terminal corresponding portion (see FIG. 8).

  For this reason, in the rubber sheet 9 in which the second positioning portion 9C is not provided and only the first positioning portion 9B is provided, the operator positions the first positioning portion 9B on the spring seat 7, It is necessary to assemble the mount member 10 to the damper 5.

  In the state where the first positioning portion 9B is positioned on the spring seat 7, as shown in FIG. 7, since the portion different from the terminal corresponding portion is also in contact with the spring seat 7, the central axis Ls of the spring 3 is the damper. 5 is greatly inclined with respect to the central axis Ld.

  For this reason, there is a possibility that the workability of the work of assembling the mount member 10 to the damper 5 and the work of positioning the terminal corresponding portion at a predetermined site may be significantly reduced, and thus the assemblability of the vehicle suspension apparatus 1 may be lowered. .

  In the configuration in which the rubber seat 9 and the spring 3 are not joined in advance, the operator performs assembly work while positioning the terminal so that the terminal is located at a predetermined portion of the rubber seat 9 when the vehicle suspension device 1 is assembled. Because it is necessary to do this, it is difficult to reduce the number of assembly steps.

  On the other hand, in the rubber sheet 9 according to the present embodiment, the second positioning portion 9C is provided at a portion corresponding to a position shifted by 0.4 turns or more from the end portion of the end turn portion 3A. As a result, when the vehicle suspension apparatus 1 is assembled, the second positioning portion 9C is positioned with respect to the spring seat 7 before the terminal corresponding portion, as shown in FIG.

  In the state shown in FIG. 8, since the center axis Ls of the spring 3 is substantially parallel to the center axis Ld of the damper 5, the mount member is positioned with the second positioning portion 9C positioned with respect to the spring seat 7. When 10 is assembled to the damper 5, the terminal corresponding portion is automatically positioned at a predetermined position with respect to the spring seat 7. Therefore, it can be suppressed that the assemblability of the vehicle suspension device 1 is lowered.

  As described above, the position corresponding to the position where the second positioning portion 9C is provided, that is, the position shifted by 0.4 turns or more from the end portion of the end turn portion 3A is the center axis Ls of the spring 3 of the damper 5. When the spring 3 is assembled so as to be substantially parallel to the central axis Ld, the rubber sheet 9 and the spring sheet 7 first contact each other.

(Other embodiments)
In the above-described embodiment, the first positioning portion 9B is provided. However, the invention disclosed in this specification is not limited to this. That is, the rubber sheet 9 in which the first positioning portion 9B is abolished may be used.

  The above-described embodiment is a strut type suspension device for suspending the front wheel Fh. However, the invention disclosed in this specification is not limited to this. That is, the invention disclosed in this specification can be applied to other types of vehicle suspension devices.

  In the above-described embodiment, the first positioning portion 9B and the second positioning portion 7B are holes or recesses, and the first positioning portion 7A and the second positioning portion 9C are protrusions. However, the invention disclosed in this specification is not limited to this. That is, for example, the first positioning portion 9B and the second positioning portion 7B may be configured as protrusions, and the first positioning portion 7A and the second positioning portion 9C may be configured with holes or recesses.

  Furthermore, the present disclosure is not limited to the above-described embodiment as long as it matches the gist of the invention described in the claims. Therefore, you may combine at least 2 embodiment among several embodiment mentioned above.

DESCRIPTION OF SYMBOLS 1 ... Suspension apparatus for vehicles 3A ... End winding part 5 ... Damper 5A ... Cylinder part 5B ... Rod 7 ... Spring seat 7A ... 1st positioning part 7B ... 2nd positioning part 9 ... Rubber sheet 9A ... Groove part 9B ... 1st positioning part 9C ... 2nd positioning part 10 ... Mount member

Claims (1)

In the vehicle suspension system,
A coiled spring;
A telescopic damper disposed in the spring;
A metal spring seat connected to one end or the other end in the longitudinal direction of the damper, wherein the spring seat is inclined with respect to the expansion and contraction direction of the damper,
A rubber rubber sheet joined to the end winding portion of the spring, the rubber sheet pressed against the spring sheet by the spring, and
A suspension for a vehicle comprising: a positioning portion that is provided at a position corresponding to a position shifted by 0.4 turns or more from the end portion of the end turn portion of the rubber seat, and that determines a position of the rubber seat with respect to the spring seat. apparatus.

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