JP2013092219A - Suspension device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To satisfy (harmonize both) both of assemblability of a suspension spring with respect to a spring holding part and driving stability.SOLUTION: A lower side mount member 36 has a plate-like part 46 interposed between a support surface 44 of a lower side spring seat 28 and the suspension spring 18, and a cylindrical part 48 formed in a substantially cylindrical shape. The plate-like part 46 is provided with the spring holding part 50 holding a lower end part side being a part of a spiral coil of the suspension spring 18 by an inner peripheral surface, a first projection part 52 projecting toward the suspension spring 18, a second projection part 54 projecting by the predetermined length toward the support surface 44 of the lower side spring seat 28, and a recessed part 58 for forming a clearance 56 between a lower surface of the plate-like part 46 and the support surface 44 of the lower side spring seat 28.

Description

  The present invention relates to a vehicle suspension apparatus provided with a spring holding portion for holding a suspension spring.

  2. Description of the Related Art Conventionally, in a vehicle suspension apparatus, a configuration in which a coil spring (suspension spring) is provided coaxially with a suspension arm or a shock absorber is known for vibration suppression and shock absorption.

  In this vehicle suspension device, when the coil spring is assembled to the suspension arm or the shock absorber, the coil spring is dropped between the spring seat provided on the suspension arm or the shock absorber side and the coil end of the coil spring. A spring seat rubber is disposed to prevent this (see, for example, Patent Document 1 and Patent Document 2).

JP 2003-118341 A JP-A-2005-155808

  However, in the structure disclosed in Patent Document 1, a coil spring is disposed between the restricting convex portion and the inner peripheral cylindrical portion, and the coil spring is disposed between the restrictive convex portion and the inner peripheral cylindrical portion. A gap (separation interval) having a width larger than the diameter (outer diameter) of the wire is formed, and the holding rigidity of the coil spring is lowered. For this reason, when a load in the vertical direction is input to the coil spring according to the swing of the suspension, a relative displacement (displacement) occurs between the spring spring and the rubber before the coil spring expands and contracts. The intended expansion and contraction of the coil spring may not be performed, which may adversely affect the steering stability of the vehicle.

  In addition, in the structure disclosed in Patent Document 1, it is disclosed that a plurality of lightening recesses are provided on the lower surface of the annular plate portion, and this lightening recess adjusts the spring characteristics of the annular plate portion. Therefore, it does not contribute to the holding rigidity of the coil spring.

  Furthermore, in the structure disclosed in Patent Document 2, the coil spring is held by a spring holding portion having a width (separation interval) smaller than the diameter of the wire of the coil spring. In this way, if the width (separation interval) of the spring holding part is made narrower than the diameter (outer diameter) of the coil spring element wire, when the coil spring is attached to the spring seat rubber, the narrow spring holding part It is necessary to mount the coil spring to the spring holding portion while widening the width (separation interval), and a large force is required at the time of installation, which adversely affects the assembly workability.

  The present invention has been made in view of the above points, and provides a vehicle suspension device capable of achieving both (combination with) the assembly of the suspension spring with respect to the spring holding portion and the steering stability. Objective.

To achieve the above object, the present invention provides a suspension spring disposed between a suspension or shock absorber and a vehicle body side, and the suspension spring either on the suspension, the shock absorber, or the vehicle body side. A spring seat that supports
A vehicle suspension apparatus comprising a suspension member interposed between the suspension spring and the spring seat, wherein the mount member retains a part of the winding of the suspension spring on an inner peripheral surface. And a deforming portion that is deformed so that the diameter of the inner peripheral surface of the spring holding portion is reduced by a load input from the suspension spring in a vehicle-mounted state.

  According to the present invention, even when the inner peripheral surface of the spring holding portion is set wider than the outer diameter of the wire of the suspension spring so that the suspension spring can be easily assembled to the spring holding portion, When the spring load of the suspension spring is input, the inner peripheral surface of the spring holding portion is deformed so as to be reduced in diameter. For this reason, in the present invention, the diameter of the inner peripheral surface of the spring holding portion can be narrowed via the deforming portion, the suspension spring is firmly held to improve the holding rigidity, and the suspension or shock absorber is swung. In response to this, it is possible to perform an intended expansion and contraction operation on the suspension spring, and to improve the steering stability. As a result, in the present invention, it is possible to obtain a suspension device that achieves both assembling properties and steering stability.

  In the present invention, a flat surface is formed on the spring seat on a side where the suspension spring is placed, the spring holding portion is formed in a plate shape, and the flat surface of the spring seat and the suspension spring are formed. The deforming portion is provided on the outer peripheral side of the suspension spring at the peripheral portion of the plate-like portion, and protrudes toward the suspension spring side. It has a convex part and the 2nd convex part which protrudes toward the said flat surface of the said spring seat in the location in which the said 1st convex part of the said peripheral part is provided.

  According to the present invention, with this configuration, when the spring load by the suspension spring is not input before mounting on the vehicle, the flat surface of the spring seat and the spring holding portion are located inside the second protrusion. A clearance is formed between the plate-like portions.

  Therefore, after the vehicle is mounted with the suspension spring mounted in the inner peripheral surface of the spring holding portion, for example, when the suspension spring expands and contracts due to road surface vibration, vehicle body swing, etc., the vertical direction generated by the expansion and contraction action of the suspension spring The suspension spring exerts a pressing force that presses the spring holding portion of the plate-shaped portion toward the flat surface of the spring seat by its elastic force (spring force). As a result, the clearance between the flat surface of the spring seat and the plate-like portion of the spring holding portion is crushed inside the second convex portion, and becomes zero or close to zero.

  With this pressing force, the clearance becomes zero or close to zero, whereby the first convex portion is elastically deformed toward the inner diameter side, and the width (separation interval) of the opening portion on the inner peripheral surface of the spring holding portion is narrowed. . In other words, when the spring load of the suspension spring acts as a pressing force on the spring holding portion of the plate-like portion, the clearance on the spring seat side becomes zero or a state close to zero, and the first convex portion at the peripheral portion is moved to the spring. The holding force for holding the suspension spring can be increased by elastically deforming the opening of the holding part in the closing direction.

  At the same time, since the suspension spring can be firmly held, the suspension spring or the shock absorber can be expanded or contracted in response to the swinging of the suspension or shock absorber, thereby improving the steering stability of the vehicle. it can.

  As described above, according to the present invention, even when the width of the inner peripheral surface (separation interval) of the spring holding portion is set wide so that the suspension spring can be easily assembled, the spring load of the suspension spring applied after mounting the vehicle The convexity of 1 is elastically deformed, the diameter of the inner peripheral surface of the spring holding part is reduced, the spring holding force is increased, and the steering stability of the vehicle is improved. Can be balanced (harmonized).

  In the present invention, a flat surface is formed on the spring seat on a side where the suspension spring is placed, the spring holding portion is formed in a plate shape, and the flat surface of the spring seat and the suspension spring are formed. The deforming portion is provided on the outer peripheral side of the suspension spring at the peripheral portion of the plate-like portion, and protrudes toward the suspension spring side. A convex portion and a concave portion that forms a clearance between the plate-like portion and the flat surface of the spring seat on the radially inner side of the portion where the first convex portion of the peripheral edge portion is provided; It is characterized by.

  According to the present invention, the clearance formed between the plate-like portion and the flat surface of the spring seat is crushed via the concave portion on the radially inner side of the portion where the first convex portion of the peripheral portion is provided. It becomes zero or close to zero.

  By this pressing force, the clearance becomes zero or close to zero, whereby the first convex portion is elastically deformed to the inner diameter side, and the width (separation interval) of the opening portion on the inner peripheral surface of the spring holding portion is narrowed. Thus, the holding rigidity of the suspension spring can be improved. At the same time, since the suspension spring can be firmly held, the suspension spring or the shock absorber can be expanded or contracted in response to the swinging of the suspension or shock absorber, thereby improving the steering stability of the vehicle. it can.

  As described above, according to the present invention, even when the width of the inner peripheral surface of the spring holding portion (separation interval) is set wide so that the suspension spring can be easily assembled, the first load is applied by the spring load of the suspension spring applied after the vehicle is mounted. The convexity of 1 is elastically deformed, the diameter of the inner peripheral surface of the spring holding part is reduced, the spring holding force is increased, and the steering stability of the vehicle is improved. Can be balanced (harmonized).

  Furthermore, in the present invention, the mount member is provided on the inner peripheral side of the suspension spring and protrudes along the suspension spring. The mount member extends from the outer peripheral surface of the cylindrical portion in the radially outward direction. It has the extended part which opposes the said 1st convex part by taking out, It is characterized by the above-mentioned.

  According to the present invention, the extending portion protruding radially outward is provided on the outer peripheral surface of the cylindrical portion, and the extending portion is opposed to the first convex portion, so that the suspension spring is detached from the spring holding portion. Can be reliably prevented.

  In the present invention, it is possible to obtain a vehicle suspension device that can achieve both (associating) the assembly property of the suspension spring with the spring holding portion and the steering stability.

It is principal part sectional drawing of the suspension apparatus which concerns on embodiment of this invention. FIG. 2 is an enlarged longitudinal sectional view of a lower mount member, an upper mount member, and the like that constitute the suspension device of FIG. 1. It is a perspective view of the said lower side mounting member. It is a bottom view of the lower mount member. FIG. 5 is an enlarged longitudinal sectional view taken along line AA in FIG. 4. (A) is a state when attaching a suspension spring with respect to the spring holding part of a lower side mounting member, Comprising: The partial expanded longitudinal cross-sectional view which shows the state before the spring load of a suspension spring is input, (b) FIG. 5 is a partially enlarged longitudinal sectional view showing a state in which the suspension spring is mounted on the spring holding portion and mounted in the vehicle, and after the spring load of the suspension spring is input. (A) is a top view of an upper mount member, (b) is an expanded longitudinal cross-sectional view along the EE line of (a). (A) is a state when assembling a suspension spring with respect to the spring holding part of an upper mount member, Comprising: The partial expanded longitudinal cross-sectional view which shows the state before the spring load of a suspension spring is input, (b) FIG. 5 is a partially enlarged longitudinal sectional view showing a state in which the suspension spring is mounted on the spring holding portion and mounted in the vehicle and after the spring load of the suspension spring is input.

  Next, embodiments of the present invention will be described in detail with reference to the drawings as appropriate. FIG. 1 is a cross-sectional view of a main part of a suspension device according to an embodiment of the present invention, FIG. 2 is an enlarged vertical cross-sectional view of a lower mount member and an upper mount member that constitute the suspension device of FIG. 1, and FIG. FIG. 4 is a perspective view of the lower mount member, FIG. 4 is a bottom view of the lower mount member, and FIG. 5 is an enlarged longitudinal sectional view taken along line AA in FIG.

  As shown in FIG. 1, the suspension device 10 is composed of a strut suspension, and is connected to a wheel side (left and right front wheels) (not shown) via a first mounting bracket 12 and via a second mounting bracket 14. A shock absorber 16 connected to a vehicle body (not shown) and a suspension spring 18 suspended along the axial direction of the shock absorber 16 are provided.

  In this case, as is well known, the shock absorber 16 expands and contracts so that the impact force received by the vehicle from the road surface is absorbed by the elastic force of the suspension spring 18, and the up and down movement of a piston (not shown) accompanying the expansion and contraction operation. Sometimes, the piston valve mechanism provided in the piston, the valve mechanism (not shown) provided in the cylinder (not shown), etc. exhibit a function of suppressing the expansion and contraction vibration.

  The shock absorber 16 is formed of a cylindrical body and is provided with an outer tube 20 provided with a first mounting bracket 12 on the lower side, and one end portion connected to a piston (not shown) accommodated in the outer tube 20, and the other end portion described above. A piston rod 22 exposed to the outside of the outer tube 20 and a mount rubber assembly 24 that is connected to the tip of the piston rod 22 and includes the second mounting bracket 14 are provided.

  The outer tube 20 is provided with a tie rod end of a steering device (not shown), and a steering force output from the steering device (not shown) is transmitted to the wheel side (left and right front wheels) via the outer tube 20 to enable steering. It is said.

  The shock absorber 16 includes a lower spring seat (spring seat) 28 that is locked to an annular step portion 26 formed on the outer peripheral surface of the outer tube 20, and a thrust bearing 30 that is supported on the back by the second mounting bracket 14. An upper spring seat (spring seat) 32 fixed to the upper spring seat, a suspension spring 18 suspended between the lower spring seat 28 and the upper spring seat 32, and a spiral spring supported by the lower spring seat 28. The lower mount member 34 that holds the lower end portion (one end portion) of the suspension spring 18, and the upper mount member 36 that is supported by the upper spring seat 32 and holds the upper end portion (other end portion) of the suspension spring 18.

  Specifically, as shown in FIG. 2, the lower end portion of the suspension spring 18 is supported by the lower spring seat 28 via the lower mount member 34, and the upper end portion of the suspension spring 18 is supported by the upper mount. It is supported by the upper spring seat 32 via the member 36.

  In this case, the lower mount member 34 and / or the upper mount member 36 function as a mount member interposed between the suspension spring 18 and the spring seat (the lower spring seat 28 and the upper spring seat 32). is there.

  Returning to FIG. 1, the lower side of the upper spring seat 32 is fixed to the collar member 38 and is attached to the piston rod 22 via the bump stop rubber 40 engaged with the piston rod 22 and the bellows portion. A dust cover 42 is provided so as to be extendable along.

  The support surfaces 44 of the lower spring seat 28 and the upper spring seat 32 that are in contact with and support the lower mount member 34 and the upper mount member 36 are formed by flat surfaces.

  As shown in FIG. 3, the lower mount member 36 is formed in a disc shape, and is a plate-like portion interposed between the support surface 44 (flat surface) of the lower spring seat 28 and the suspension spring 18. 46 and a cylindrical portion 48 formed in a substantially cylindrical shape, and the plate-like portion 46 and the cylindrical portion 48 are integrally formed. In the present embodiment, the plate-like portion 46 and the cylindrical portion 48 are integrally formed of, for example, hard rubber, but the present invention is not limited to this, and the plate-like portion 46 and the cylindrical portion 48 are not limited thereto. And may be formed separately.

  As shown in FIG. 5, the plate-like portion 46 includes a spring holding portion 50 that holds the lower end side, which is a part of the spiral winding of the suspension spring 18, on the inner peripheral surface, and the plate-like portion 46. The lower spring seat 28 is provided on the outer peripheral side of the suspension spring 18 at the peripheral portion of the lower spring seat 28 at the location where the first convex portion 52 protruding toward the suspension spring 18 and the first convex portion 52 of the peripheral portion are provided. The lower surface of the plate-like portion 46 and the lower spring are provided on the inner side in the radial direction of the portion where the second convex portion 54 protruding by a predetermined length toward the support surface 44 and the first convex portion 52 at the peripheral edge portion are provided. And a recess 58 that forms a clearance 56 (see also FIG. 6A described later) with the support surface 44 (flat surface) of the sheet 28.

  As shown in FIG. 5, the inner peripheral surface of the spring holding portion 50 is provided with a curved surface 60 provided on the cylindrical portion 48 side and formed in an arcuate cross section corresponding to the outer diameter surface of the suspension spring 18. And an annular step portion 62 that is provided on the one convex portion 52 side and that is continuous with the curved surface 60 and has a linear cross section.

  As shown in FIG. 5, the first convex portion 52 of the plate-like portion 46 is formed in a trapezoidal shape whose longitudinal section becomes narrower toward the distal end side. Further, as shown in FIG. 4, the first convex portion 52 and the second convex portion 54 are substantially arc-shaped in a predetermined position along the peripheral edge of the plate-like portion 46 in plan view and bottom view, respectively. Formed. The first convex part 52 formed on the upper surface part side of the peripheral part of the plate-like part 46 and the second convex part 54 formed on the lower surface part side of the peripheral part of the plate-like part 46 are a plate-like part. It arrange | positions in the position which overlaps on the upper and lower surfaces of 46 (refer FIG.3 and FIG.4).

  In this case, the first convex portion 52, the second convex portion 54, and the concave portion 58 of the plate-like portion 46 are formed by the spring holding portion due to a load input from the suspension spring 18 in a state where the suspension spring 18 is assembled to the vehicle. It functions as a deforming portion that deforms so that the diameter of the inner peripheral surface of 50 is reduced. This will be described in detail later.

  On the lower side of the outer peripheral surface of the cylindrical portion 48 adjacent to the plate-like portion 46, an extending portion that protrudes outward in the radial direction and prevents the suspension spring 18 from falling off from the spring holding portion 50. Is provided. As shown in FIG. 3, the extension portion is set at the lowest position in the height direction of the cylindrical portion 48, and protrudes radially outward from the outer peripheral surface of the cylindrical portion 48. The first extending portion 64a (see FIG. 5) facing the first convex portion 52 of the portion 46 is spaced apart from the first extending portion 64a by a predetermined angle along the circumferential direction, and the first extending portion 64a The second extending portion 64b, in which the position in the height direction of the cylindrical portion 48 is set higher than the second extending portion 64b, is separated from the second extending portion 64b by a predetermined angle along the circumferential direction, and the height of the cylindrical portion 48 is increased. The third extending portion 64c is set at the highest position in the vertical direction.

  In the present embodiment, a plurality of extending portions including first to third extending portions 64a to 64c disposed at different height positions corresponding to the suspension spring 16 wound in a spiral shape are illustrated. However, it may be a single extension part composed of only the first extension part 64a facing the first convex part 52 of the plate-like part 46.

  The suspension device 10 according to the present embodiment is basically configured as described above. Next, the function and effect will be described.

  FIG. 6A is a partially enlarged longitudinal sectional view showing a state when the suspension spring is assembled to the spring holding portion of the lower mount member and before the spring load of the suspension spring is inputted. 6 (b) is a partially enlarged vertical cross-sectional view showing a state after the suspension spring is assembled to the spring holding portion and the state after the spring load of the suspension spring is input.

  In FIG. 6A, since the spring load by the suspension spring 18 is not input before mounting on the vehicle, the support surface 44 of the lower spring seat 28 and the spring holding portion 50 are located inside the second convex portion 54. A clearance 56 is formed between the lower surface of the plate-like portion 46 (between the recess 58 of the plate-like portion 46 and the support surface 44 of the lower spring seat 28).

  As shown in FIG. 6A, when the lower end portion of the suspension spring 18 wound in a spiral shape is assembled to the inner peripheral surface of the spring holding portion 50 of the lower mount member 34, Since the width F1 (separation interval) of the opening portion of the inner peripheral surface is formed larger than the outer diameter F2 of the strand of the suspension spring 18 (F1> F2), the lower end portion of the suspension spring 18 is connected to the spring holding portion 50. It can be easily inserted and assembled to the inner peripheral surface. As a result, the assembling property of the suspension spring 18 can be improved.

  As shown in FIG. 6A, in the state before the spring load is applied to the spring holding portion 50, the diameter of the inner peripheral surface of the spring holding portion 50 (the maximum inner diameter on the inner peripheral surface) is , D1 in the longitudinal section.

  After the suspension spring 18 is mounted on the inner peripheral surface of the spring holding portion 50, for example, when the suspension spring 18 expands and contracts due to road surface vibration, vehicle body swing or the like, the suspension spring 18 is caused to expand and contract. A load in the vertical direction is generated, and the suspension spring 18 presses the spring holding portion 50 of the plate-like portion 46 toward the support surface 44 of the lower spring seat 28 by the elastic force (spring force) (arrow). B)). As a result, between the support surface 44 of the lower spring seat 28 and the lower surface of the plate-like portion 46 of the spring holding portion 50 inside the second convex portion 54 (in other words, the recess 58 and the lower side of the plate-like portion 46). The clearance 56 between the spring seat 28 and the support surface 44 is crushed and becomes zero or close to zero.

  With this pressing force (see arrow B), the clearance 56 becomes zero or close to zero, whereby the first convex portion 52 formed on the upper side of the second convex portion 54 is on the inner diameter side (see arrow C). ), The width F3 (separation interval) of the opening on the inner peripheral surface of the spring holding portion 50 is reduced (F2> F3). In this case, as shown in FIG. 6B, in the state after the spring load is applied to the spring holding portion 50, the diameter of the inner peripheral surface of the spring holding portion 50 (the maximum inner diameter on the inner peripheral surface). However, it becomes D2 in the longitudinal section, and the diameter is reduced compared with the diameter D1 of the inner peripheral surface before the spring load is applied (D1> D2).

  In other words, when the spring load of the suspension spring 18 acts as a pressing force on the spring holding portion 50 of the plate-like portion 46, the clearance on the lower spring seat 28 side becomes zero or close to zero, and the upper portion of the peripheral portion The holding force for holding the suspension spring 18 can be increased by elastically deforming the first convex portion 52 on the side toward the direction in which the opening of the spring holding portion 50 is closed.

  At the same time, since the suspension spring 18 can be firmly held in this embodiment, the suspension spring 18 can be expanded or contracted in response to the swing of the suspension arm or shock absorber 16 (not shown). In addition, the handling stability of the vehicle can be improved.

  As described above, in the present embodiment, even when the width F1 (separation interval) of the inner peripheral surface of the spring holding portion 50 is set wide so that the suspension spring 18 can be easily assembled, the suspension spring 18 applied after the vehicle is mounted. The first convex portion 52 is elastically deformed by the spring load and the diameter of the inner peripheral surface of the spring holding portion 50 is reduced (D1 → D2) to increase the spring holding force and improve the steering stability of the vehicle. By doing so, both assembling property and steering stability can be made compatible (harmonized).

  Moreover, in this embodiment, coexistence (harmony) of assembly property and steering stability can be achieved with a simple structure including the first convex portion 52 and the second convex portion 54 (concave portion 58). Assembling costs and manufacturing costs can be reduced.

  Furthermore, in the present embodiment, by providing a first extending portion 64a projecting radially outward on the outer peripheral surface of the cylindrical portion 48, and by causing the first extending portion 64a to face the first convex portion 52, It is possible to reliably prevent the suspension spring 18 from dropping from the spring holding portion 50.

  In this embodiment, the suspension device 10 applied to the left and right front wheels of the vehicle is described. However, the present invention is not limited to this, and the suspension device 10 can be applied to the left and right rear suspensions. is there.

  7A is a plan view of the upper mount member, FIG. 7B is an enlarged longitudinal sectional view taken along line E-E in FIG. 7A, and FIG. 8A is an upper view of the suspension spring. FIG. 8B is a partially enlarged longitudinal sectional view showing a state when the mount member is assembled to the spring holding portion and before the spring load of the suspension spring is inputted. FIG. FIG. 6 is a partially enlarged longitudinal sectional view showing a state after the vehicle is mounted on the vehicle and after the spring load of the suspension spring is inputted.

  The upper mount member 36 is basically formed in substantially the same shape as the lower mount member 34, and the top and bottom are reversed. Since the effect is the same as that of the lower mount member 34, detailed description thereof is omitted.

10 Suspension device 16 Shock absorber 18 Suspension spring 28 Lower spring seat (spring seat)
32 Upper spring seat (spring seat)
34 Lower mounting member (mounting member)
36 Upper mount member (mount member)
44 Support surface (flat surface)
46 Plate-like portion 48 Tube-like portion 50 Spring holding portion 52 First convex portion (deformed portion)
54 Second convex part (deformation part)
56 Clearance 58 Recess (deformed part)
64a 1st extension part (extension part)

Claims (4)

A suspension spring disposed between the suspension or shock absorber and the vehicle body side;
A spring seat that supports the suspension spring on either the suspension, the shock absorber, or the vehicle body side;
In a vehicle suspension device comprising a mount member interposed between the suspension spring and the spring seat,
The mounting member is
A spring holding part for holding a part of the winding of the suspension spring on the inner peripheral surface;
A deforming portion that is deformed so that a diameter of the inner peripheral surface of the spring holding portion is reduced by a load input from the suspension spring in a vehicle-mounted state;
A vehicle suspension device comprising: The spring seat is formed with a flat surface on the side where the suspension spring is placed,
The spring holding portion is formed in a plate shape, and has a plate-like portion interposed between the flat surface of the spring seat and the suspension spring,
The deforming portion is provided on the outer peripheral side of the suspension spring at the peripheral portion of the plate-shaped portion, and includes a first convex portion protruding toward the suspension spring side, and the first convex portion of the peripheral portion. The vehicle suspension device according to claim 1, further comprising a second convex portion that projects toward the flat surface of the spring seat at a place where the spring seat is provided. The spring seat is formed with a flat surface on the side where the suspension spring is placed,
The spring holding portion is formed in a plate shape, and has a plate-like portion interposed between the flat surface of the spring seat and the suspension spring,
The deforming portion is provided on the outer peripheral side of the suspension spring at the peripheral portion of the plate-shaped portion, and includes a first convex portion protruding toward the suspension spring side, and the first convex portion of the peripheral portion. The vehicle suspension device according to claim 1, further comprising: a concave portion that forms a clearance between the plate-like portion and the flat surface of the spring seat on a radially inner side of a place to be provided.   The mount member is provided on the inner peripheral side of the suspension spring and protrudes along the suspension spring. The mount member extends radially outward from the outer peripheral surface of the cylindrical portion. The vehicle suspension device according to claim 2, further comprising an extending portion facing the convex portion.

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