JP7122222B2 - Damper mount mounting structure - Google Patents

Description

The present invention relates to a damper mount attachment structure.

As a conventional damper mount mounting structure, bolts are provided in the upper bracket of the damper, and bolt holes are provided in the upper wall of the body tire house provided on the tire house side. Then, the upper part of the damper is attached to the upper wall of the body tire house by obtaining a state in which the bolt is inserted into the bolt hole and tightening the tip of the bolt with a nut (see, for example, Patent Document 1).
In such a damper mount mounting structure, when mounting the upper portion of the damper to the upper wall of the body tire house, positioning is performed and the bolt is inserted through the bolt hole.

Japanese Patent Application Laid-Open No. 2002-19440

JP 2006-316864 A

However, in the conventional damper mount mounting structure, if the damper is displaced with respect to the vehicle body, it is difficult to insert the bolt into the bolt hole, making it difficult to tighten the bolt.
SUMMARY OF THE INVENTION It is an object of the present invention to provide a damper mount mounting structure capable of improving the positioning accuracy and improving the ease of assembly.

The damper mount mounting structure of the present invention includes a damper mount for fixing the upper portion of the suspension to a mounting opening on the vehicle body side. Ribs continuously provided between a mounting portion for mounting the base body to the peripheral edge of the mounting opening in contact with the rear side of the peripheral edge portion of the mounting opening while the base body is inserted into the mounting opening, and the mounting portion and the outer peripheral surface of the base body. The rib has a side surface facing the inner peripheral surface of the mounting opening formed at an angle that intersects the central axis of the base body, and at the intersection between the rib and the mounting portion, the contact surface of the mounting portion is , and has a recess recessed downward in the vertical direction of the vehicle .

ADVANTAGE OF THE INVENTION According to this invention, the damper mount attachment structure which can improve positioning accuracy and can make assemblability favorable is provided.

1 is a perspective view illustrating the overall configuration of a damper mount attachment structure according to an embodiment of the present invention, in which a damper mount is attached to a suspension attachment portion of a vehicle body; FIG. FIG. 3 is a perspective view illustrating how the damper mount is attached to the suspension attachment portion of the vehicle body in the damper mount attachment structure; FIG. 4 is a perspective view of a damper mount used in the damper mount attachment structure; It is the perspective view which looked at the damper mount from the other direction. FIG. 4 is a side view of the damper mount; It is a top view of a damper mount. FIG. 5 is a top view for explaining how the damper mount is attached to the suspension attachment portion of the vehicle body in the damper mount attachment structure. FIG. 8 is a side view of the damper mount mounting structure in which the damper mount rotates as viewed in the direction of arrow VIII in FIG. 7 ; FIG. 5 is a top view for explaining how the damper mount is positioned and mounted in the damper mount mounting structure; FIG. 10 is a cross-sectional view taken along line XX in FIG. 9 showing how a bolt is inserted into a positioned bolt fixing hole; FIG. 10 is a cross-sectional view taken along line XI-XI in FIG. 9 for explaining how the inner peripheral surface located at the peripheral edge of the mounting opening is not pushed up by the concave portion when the damper mount is attached; .

An embodiment of the present invention will be described below with reference to the drawings as appropriate. The same reference numerals are given to the same components, and redundant explanations are omitted. Unless otherwise specified, directions are basically explained based on front and rear, left and right, or up and down as seen from the driver. Further, the "vehicle width direction" is synonymous with the "left-right direction".

As shown in FIG. 1, the damper mount mounting structure of this embodiment includes a suspension mounting portion 2 on the side of a vehicle body 1, a suspension device 3, and an upper portion 3a of the suspension device 3. and a damper mount 10 that attaches to the

In this embodiment, a damper mount mounting structure for a suspension device 3 used for a right front wheel of a vehicle body 1 will be described. The damper mount mounting structure of the suspension device 3 applied to the left front, left, and right rear wheels is the same as or equivalent to that of the suspension device 3 used for the right front wheel, so the description is omitted.

The suspension mounting portion 2 of this embodiment has a seat portion 5 . The seat surface portion 5 is formed on the upper portion of a pair of left and right body tire housings 4 in the vehicle width direction of the vehicle body 1 so as to be inclined inward in the vehicle width direction.
The seat portion 5 has a mounting opening 6 and a pair of bolt fastening holes 7 , 7 . The mounting opening 6 has a circular opening in the upper central portion. The bolt fastening holes 7, 7 are arranged on opposite sides of the mounting opening 6 so as to sandwich the mounting opening 6 from both sides in the vehicle front-rear direction.

The suspension device 3 is arranged in the left and right wheel houses of the vehicle body 1, and has a coil spring (not shown) and a shock absorber as a buffer member.
The shock absorber accommodates a shock absorber main body in a cylindrical damper tube 3b. A piston rod extending and retracting in the insertion/removal direction projects from the upper end of the damper tube 3b. Furthermore, the lower portion of the damper tube 3b is connected to a portion that moves relative to the vehicle body 1, such as a knuckle arm (not shown).

As shown in FIG. 2, on the upper portion of the suspension device 3, a damper mount 10 is attached to the tip of a piston rod projecting upward from the upper end of the damper tube 3b.
The damper mount 10 has a housing portion 11 as a base mounted on the upper portion 3a of the suspension device 3, and a stay portion 15 as a mounting portion projecting integrally from the outer peripheral surface 11a of the housing portion 11. .

The inner diameter D1 of the mounting opening 6 on the vehicle body 1 side is set larger than the outer diameter D2 of the housing portion 11 of the damper mount 10 (see FIG. 7).
The damper mount 10 is mounted by inserting the housing portion 11 into the mounting opening 6 and bringing the stay portion 15 into contact with the rear surface side 6 a of the peripheral edge of the mounting opening 6 . As a result, the upper part of the suspension device 3 is attached to the vehicle body 1 and absorbs and relieves the input load in the vertical direction of the vehicle.

3 to 6 illustrate the configuration of the damper mount 10 of the embodiment.
The damper mount 10 of the embodiment has a cylindrical housing portion 11 .
As shown in FIG. 3 , on the outer peripheral surface 11 a of the housing portion 11 , a first rib 21 , a second rib 22 and a third rib 23 are provided continuously between the stay portion 15 and the outer peripheral surface 11 a of the housing portion 11 . is provided.
The first rib 21, the second rib 22, and the third rib 23 project outward in the radial direction of the housing portion 11, face the inner peripheral surface 6b of the mounting opening 6, and are parallel here. It has side surfaces 21a, 22a, and 23a (see FIG. 11).

The side surfaces 21a, 22a, and 23a of the damper mount 10 facing the inner peripheral surface 6b of the mounting opening 6 extend radially outward from the outer peripheral surface 11a toward the stay portion 15. It widens toward the end and tapers at an angle intersecting the center line L of the housing portion 11 .
These side surfaces 21a, 22a, and 23a are formed in an inclined linear shape with a predetermined width dimension.

Further, as shown in FIG. 4, on the upper surface side of the stay portion 15, a flat contact surface 16 and a concave portion 50 formed by recessing the contact surface 16 in the in-plane and outboard directions are formed.
The concave portion 50 has a V shape (see FIG. 6) along the outer peripheral surface 11 a and is formed across the first rib 21 , the second rib 22 and the third rib 23 . An intersection portion 60 between the side surfaces 21a, 22a, 23a and the contact surface 16 is configured to be positioned within the recess 50 of the contact surface 16 of the stay portion 15 (see FIG. 11). .

As shown in FIG. 5, the contact surface 16 formed on the upper surface of the stay portion 15 is flat and inclined at a predetermined angle α (0 to 90°) with respect to the center line L of the housing portion 11. formed. For this reason, even if the angle around the center line L is deviated, the damper mount 10 is pushed from below, and the housing portion 11 rotates according to the inclination, so that the corresponding bolt insertion holes 17 and 17 and the bolt fastening hole 7 are aligned. , 7 match each other. The contact surface 16 can contact the back side 6a of the peripheral portion of the mounting opening 6 in a face contact state.

As shown in FIG. 6, the contact surface 16 is formed with bolt insertion holes 17 , 17 . The positions of the bolt insertion holes 17, 17 are formed to correspond to the bolt fastening holes 7, 7 formed in the seat surface portion 5, respectively. The positions of these bolt insertion holes 17 and 17 and bolt fastening holes 7 and 7 may be provided at any positions around the mounting opening 6 .
With the contact surface 16 in contact with the back surface 6a, bolt members 30, 30 as fastening members are inserted through the bolt fastening holes 7, 7 and the bolt insertion holes 17, 17 (FIG. 2). reference). The bolt members 30 , 30 are screwed into nut members 40 , 40 arranged on the upper surface side of the seat portion 5 . The upper portion 3a of the suspension device 3 is fixed to the vehicle body 1 by screwing together the bolt members 30, 30 and the nut members 40, 40 (see FIG. 1).

Further, as shown in FIG. 6, the plurality of first ribs 21, second ribs 22, and third ribs 23 are provided outside the center line L of the housing portion 11 in the vehicle width direction. Each of the first rib 21, the second rib 22, and the third rib 23 has surfaces facing each other by inclined side surfaces 21a, 22a, and 23a. In this embodiment, the side surfaces 21a, 22a, and 23a are further formed between the outer peripheral surface 11a and the contact surface 16 so as to be continuous in a tapered shape.

Furthermore, as shown in FIG. 9, the first rib 21, the second rib 22, and the third rib 23 of this embodiment are provided at regular intervals on the circumference of the outer peripheral surface 11a. A pair of the second rib 22 and the third rib 23 are provided in the vehicle front-rear direction at equal distances across the first rib 21 .

Then, as shown in FIG. 10, the contact surface 16 of the embodiment is set at an angle α so as to obliquely intersect the center line L of the housing portion 11 .
The inclination direction of the contact surface 16 is formed so as to descend toward the vehicle width direction inner side (In direction) at the same angle α as the inclination direction of the back surface side 6a of the seat surface portion 5 of the suspension mounting portion 2 (Fig. 10).

Next, the effects of the damper mount attachment structure of this embodiment will be described.
In the damper mount attachment structure of the embodiment configured as described above, the positioning accuracy can be improved, and the assembling property can be improved.
That is, when attaching the upper portion 3a of the suspension device 3 to the suspension attachment portion 2 of the vehicle body 1, the housing portion 11 is inserted upward from the back side 6a of the seat portion 5 as shown in FIG.
At this time, as shown in FIG. 7, the inner diameter D1 of the mounting opening 6 is larger than the outer diameter D2 of the housing portion 11, and the housing portion 11 can be inserted into the mounting opening 6 in the vertical direction of the vehicle ( See Figure 8). A side surface 21 a of the first rib 21 , a side surface 22 a of the second rib 22 , and a side surface 23 a of the third rib 23 are formed to face the inner peripheral surface 6 b of the mounting opening 6 .
Therefore, when the housing portion 11 is inserted into the mounting opening 6, the side surfaces 21a, 22a, and 23a are in sliding contact with the inner peripheral surface 6b of the mounting opening 6, and slide guide the housing portion 11 to the desired mounting position. do.
Therefore, since the positioning accuracy is improved, the bolt members 30, 30 are easily inserted from the bolt insertion holes 17, 17 toward the bolt fastening holes 7, 7 (see FIG. 10) and screwed into the nut members 40, 40. be able to.
In this manner, the upper portion 3a of the suspension device 3 can be guided to a desired position where it can be attached to the vehicle body 1, as shown in FIG. Therefore, it is possible to improve the assemblability when assembling the suspension device 3 .

In this embodiment, the side surfaces 21a, 22a, and 23a facing the inner peripheral surface 6b of the mounting opening 6 have a constant width dimension and are inclined at an angle intersecting the center line L of the housing portion 11 to form a linear shape. is formed in
Therefore, the side surfaces 21a, 22a, and 23a diverge radially outward from the outer peripheral surface 11a toward the stay portion 15, and have an angle that intersects the center line L of the housing portion 11. The intersection portion 60 is It is located within the recess 50 (see FIG. 11).
Therefore, even when the back side 6a is in contact with the contact surface 16, the corner between the back side 6a and the inner peripheral surface 6b does not ride on the R portion formed at the inside corner of the vehicle body, thereby preventing positional deviation. can be prevented. Also, when they are parallel, they are always in contact with each other.
Therefore, the intended positional deviation amount can be adjusted, and the positioning accuracy can be further improved.
In addition, it is not necessary to form a new shape such as separately processing a receiving surface (such as cutting and raising) on the peripheral edge of the mounting opening 6 on the vehicle body 1 side. Therefore, the manufacturing is easy because the processing is completed only on the housing portion 11 side.

Further, as shown in FIG. 6, the first rib 21, the second rib 22, and the third rib 23 are provided outside the center line L of the housing portion 11 in the vehicle width direction.
As shown in FIG. 9, when the suspension device 3 is attached to the vehicle body 1, a plurality of first ribs 21, second ribs 22, and a plurality of ribs 21, 22 and 22 are provided on the inner peripheral surface 6b of the mounting opening 6 at predetermined intervals. The third rib 23 abuts.
Among the plurality of first ribs 21 and the like, if they are in contact at two points, rotation is suppressed, and if they are in contact at three points, rotation is suppressed and positional deviation is further suppressed.
In this embodiment, since the contact is made at three points, the movement of the housing portion 11 in the rotational direction about the center line L is suppressed as compared with the case where the contact is made at one point. Misalignment is further suppressed.

Further, as shown in FIG. 9, a pair of second ribs 22 and third ribs 23 provided in the longitudinal direction of the vehicle are in contact with the inner peripheral surface 6b of the mounting opening 6 at the same distance with the first rib 21 interposed therebetween. there is In the attached state, the second rib 22 and the third rib 23 press the inner peripheral surface 6b in opposite directions toward the front-rear direction of the vehicle.
Therefore, it is possible to prevent the upper portion 3a of the suspension device 3 from moving in the longitudinal direction of the vehicle with respect to the vehicle body 1 .

As shown in FIG. 10, the contact surface 16 of the embodiment is attached at an angle so that it obliquely intersects the center line L of the housing portion 11 at the same angle α as the rear surface side 6a of the peripheral portion. there is Therefore, the abutment surface 16 and the rear surface side 6a of the peripheral portion overlap each other in a parallel state, and the positioning accuracy is further improved, so that the assembling property can be improved.

That is, in this embodiment, when the housing portion 11 is inserted upward from the rear side 6a of the seat portion 5 as shown in FIG. 7, the stay portion 15 inclined at a predetermined angle α as shown in FIG. A relatively high portion abuts against the back side 6a.
A relatively high portion of the stay portion 15 is moved by a reaction force while being in sliding contact with the rear surface side 6 a and presses the housing portion 11 . Therefore, the suspension device 3 is rotated in the circumferential direction A.

Therefore, as shown in FIG. 9, the positions of the bolt insertion holes 17, 17 are aligned with the bolt fastening holes 7, 7, respectively, and as shown in FIG. It can be inserted into the hole 7.
In this state, the abutment surface 16 and the rear surface side 6a of the peripheral portion, which are inclined at the same angle α, overlap each other in a parallel state.
Therefore, the positioning accuracy when screwing the nut member 40 onto the bolt member 30 is further improved, and assembly is facilitated.

The present invention is not limited to the embodiments described above, and various modifications are possible. The above-described embodiments are illustrated for easy understanding of the present invention, and are not necessarily limited to those having all the described configurations. Also, part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and the configuration of another embodiment can be added to the configuration of one embodiment. Moreover, it is possible to delete part of the configuration of each embodiment, or to add or replace other configurations. Possible modifications to the above embodiment are, for example, the following.

In this embodiment, the damper mount attachment structure of the suspension device 3 used for the right front wheel of the vehicle body 1 has been shown and described, but the present invention is not particularly limited to this. For example, it may be applied to the damper mount mounting structure of the suspension device 3 for the left front, left, and right rear wheels, and the parts and quantity to be used are not particularly limited by the description of the embodiment.

Moreover, in this embodiment, a plurality of first ribs 21, second ribs 22, and third ribs 23 are provided. Among these, the second rib 22 and the third rib 23 are provided as a pair in the vehicle front-rear direction at equal distances across the first rib 21 . However, it is not particularly limited to this. For example, the first ribs 21 and the like may be used singly, may be provided as two or more pairs, or may be provided in a plurality at separated positions. That is, as long as it has a side surface 21a or the like that is continuous between the stay portion 15 and the outer peripheral surface 11a of the housing portion 11 and faces the inner peripheral surface 6b of the mounting opening 6, the shape, quantity, and material of the ribs is not particularly limited. The accuracy can be improved by adding ribs, and the accuracy can be further improved by making the side surface 21a etc. parallel to the inner peripheral surface 6b of the mounting opening 6. be able to.

Furthermore, in this embodiment, the first rib 21, the second rib 22, and the third rib 23 project outward in the radial direction of the housing portion 11 and face the inner peripheral surface 6b of the mounting opening 6. Here, it has parallel side surfaces 21a, 22a and 23a (see FIG. 11). However, it is not particularly limited to this.

Moreover, the side surfaces 21a, 22a, and 23a are formed so as to be continuous in a tapered shape. However, the side surfaces 21a, 22a, and 23a facing the inner peripheral surface 6b may not be tapered, and the angle of inclination may be any angle. For example, it does not have to be inclined, and one side surface 21a may be a combination of a plurality of inclined surfaces with different inclination angles.

Further, as shown in FIG. 10, the contact surface 16 of the embodiment is inclined in the same direction as the rear surface side 6a of the seat surface portion 5 of the suspension mounting portion 2 so as to obliquely intersect the center line L of the housing portion 11. Although it has an inclination direction that descends toward the vehicle width direction inner side (In direction) at an angle α, it is not particularly limited to this. For example, the direction of inclination may be toward the outside in the vehicle width direction (out direction), or the downward direction may be any direction, such as the longitudinal direction of the vehicle.

1 vehicle body 3 suspension device (suspension)
3a upper portion 6 mounting opening 6a back side 6b inner peripheral surface 10 damper mount 11 housing portion 11a outer peripheral surface 15 stay portion (mounting portion)
21 to 23 first to third ribs 21a to 23a side

Claims (4)

Equipped with a damper mount that fixes the upper part of the suspension to the mounting opening on the vehicle body side,
The damper mount includes a base mounted on top of the suspension;
a mounting portion protruding from the outer peripheral surface of the base body and abutting against the rear surface side of the peripheral edge portion of the mounting opening in a state where the base body is inserted into the mounting opening to mount the base body to the peripheral edge of the mounting opening; ,
a rib connecting between the mounting portion and the outer peripheral surface of the base,
The rib forms a side surface facing the inner peripheral surface of the mounting opening at an angle that intersects the central axis of the base body, and the mounting portion abuts at the intersection between the rib and the mounting portion. A damper mount attachment structure, wherein the surface has a recess recessed downward in the vertical direction of the vehicle . 2. The damper mount attachment structure according to claim 1, wherein a plurality of said ribs are provided on the outer peripheral surface of said base body outside a central axis of said base body in the vehicle width direction. 3. The damper mount attachment structure according to claim 2, wherein at least one pair of said ribs are provided in the longitudinal direction of the vehicle. 4. The abutment surface of the mounting portion and the back side of the peripheral edge portion of the mounting opening are formed at the same angle to intersect the central axis of the base body. The damper mount mounting structure according to item 1.

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