JP2008018784A - Vehicle body rear part structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicle body rear part structure capable of improving flexibility in design. <P>SOLUTION: A rear suspension portion structure 10 as a vehicle body rear part structure comprises a rear suspension member 14 supported by a rear side member 12; and a collar 74 interposed between a spring receiving portion 20A and the rear side member 12, and holding a spring receiving portion 20A at a position separated from a lower side in a vehicle body vertical direction to the rear side member 12. The spring receiving portion 20A of a suspension member mount brace 20 disposes a second end side on an upper side in the vehicle body vertical direction to a lower arm 36 supported by the rear suspension member 14 so as to rotate a first end side in a direction displacing in the vehicle body vertical direction, and receives a load from a compressed coil spring 18 provided on the rear lower arm 36. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vehicle body rear structure.

There is known a structure in which a spring receiving portion (spring seat) for receiving the upper end of a spring provided on a lower arm constituting a rear suspension is provided on a cross member main body constituting a suspension member (see, for example, Patent Document 1).
JP-A-10-167108 Japanese Patent No. 3487213 Japanese Patent Laid-Open No. 11-129937

  However, the conventional technology as described above has a structure in which two opposing portions sandwiching the coil spring in the spring seat fixed to the suspension member are directly attached to the vehicle body skeleton. Etc.) has many problems.

  An object of the present invention is to obtain a vehicle body rear structure capable of improving the degree of design freedom in consideration of the above facts.

  In order to achieve the above object, a vehicle body rear structure according to a first aspect of the present invention comprises a suspension member supported by a vehicle body skeleton and a suspension member that is pivotable in a direction in which one end side is displaced in the vertical direction of the vehicle body. A spring receiving portion disposed on the upper side in the vehicle body vertical direction with respect to the arm member supported by the member, for receiving a load from a spring provided on the arm member; and interposed between the spring receiving portion and the vehicle body skeleton. And a holding member for holding the spring receiving portion at a position spaced apart from the vehicle body frame in the vertical direction of the vehicle body.

  In the rear structure of the vehicle body according to the first aspect, the load from the arm member is input from the spring to the spring receiving portion and is supported by the vehicle body skeleton via the holding member. Here, in the vehicle body rear structure, since the holding member is interposed between the spring receiving portion and the vehicle body skeleton, it is sufficient for the vehicle body skeleton to receive an input load from the holding member, in other words, the vehicle body skeleton. It is sufficient to set the load support part (position, dimension and shape) regardless of the dimensions and shape of the spring receiving part (to ensure the contact area with the holding member), and to receive the load directly from the spring receiving part. In comparison, the degree of freedom of dimension and shape is high.

  Thus, in the vehicle body rear structure according to the first aspect, for example, the degree of freedom in designing the vehicle body skeleton and the suspension member can be improved.

  According to a second aspect of the present invention, the rear body structure of the first aspect of the present invention is the rear body structure of the first aspect, wherein the spring is a coil spring, and the holding member has a constant cross-sectional shape at each portion in the vertical direction of the vehicle body. It is formed in a columnar shape, and a contact surface with the spring receiving portion is set within a range inside the load input portion from the coil spring in the spring receiving portion.

  In the rear structure of the vehicle body according to claim 2, the contact surface with the vehicle body skeleton in the holding member whose cross-sectional shape in the vertical direction of the vehicle body is substantially constant is a plan view (in the axial direction of the coil spring) in the spring receiving portion. Since it is set inside the annular load input portion from the coil spring, the load input portion from the holding member in the vehicle skeleton is compared with the configuration in which the vehicle skeleton receives the load directly from the spring receiving portion. It is possible to reduce the size.

  The vehicle body rear structure according to the invention described in claim 3 is the vehicle body rear structure according to claim 1 or 2, further comprising a connecting member for connecting the peripheral portion of the spring receiving portion and the vehicle body skeleton.

  In the vehicle body rear part structure according to the third aspect, since the connecting member connects the peripheral portion of the spring receiving portion and the vehicle body skeleton, the surface rigidity of the spring receiving portion is improved. For this reason, for example, as in claim 2, the contact portion of the spring receiving portion with the holding member is positioned inside the load input portion from the coil spring, that is, the upper and lower load supporting portions of the spring receiving portion are offset. Even in this configuration, the load from the coil spring can be effectively transmitted (supported) to the vehicle body skeleton.

  A vehicle body rear structure according to a fourth aspect of the present invention is the vehicle rear structure according to any one of the first to third aspects, wherein the suspension member is supported by the vehicle body skeleton via the holding member. ing.

  In the vehicle body rear structure according to the fourth aspect, since the suspension member is supported on the vehicle body skeleton via the holding member that holds the spring receiving portion spaced apart from the vehicle skeleton, there are various variations in the suspension member. Even in this case, the body frame and the spring receiving portion can be shared. In other words, for example, a difference for each variation of the suspension member can be absorbed between the spring receiving portion in which the holding member is interposed and the vehicle body skeleton.

  As described above, the vehicle body rear structure according to the present invention has an excellent effect that the degree of freedom in designing the vehicle body skeleton and the suspension member can be improved, for example.

  A rear suspension structure 10 to which a vehicle body rear structure according to a first embodiment of the present invention is applied will be described with reference to FIGS. 1 to 9. It should be noted that arrow FR, arrow UP, arrow IN, and arrow OUT, which are appropriately shown in each figure, respectively indicate the forward direction (traveling direction), the upward direction, the vehicle width direction inside, and the vehicle where the rear suspension structure 10 is applied. The width direction outside is shown.

  FIG. 6 is a front view in which a main part of the rear suspension structure 10 is partially cut away. 3 and 4 are perspective views of the main part of the rear suspension part structure 10 as seen from different directions, and FIG. 5 is an exploded perspective view of the main components of the rear suspension part structure 10. Is shown.

  As shown in these drawings, the rear suspension structure 10 has a rear side member 12 as a vehicle body skeleton supporting a rear suspension member 14 as a suspension member and a compression coil spring 18 as a spring constituting the rear suspension 16. The suspension mount brace 20 received on the vehicle body side is configured to be held. Since the rear suspension structure 10 is configured symmetrically with respect to the center line in the vehicle width direction, the following description will basically be made on one side in the vehicle width direction. In each drawing, one side in the vehicle width direction is mainly shown.

  As shown in FIG. 5, the rear suspension 16 includes a pair of left and right side rails each having a front cross member 22 and a rear cross member 24 which are each elongated in the vehicle width direction and which are elongated in the front-rear direction and are juxtaposed in the vehicle width direction. 26 are connected to each other and configured in a substantially rectangular frame shape (well shape) in plan view. The vehicle width direction outer ends 22A and 24A of the front cross member 22 and the rear cross member 24 protrude outward in the vehicle width direction from the side rails 26, respectively.

  A pair of front and rear lower arm support pieces 28 is provided between the vehicle width direction outer end 22A and the vehicle width direction center 22B of the front cross member 22, and the vehicle width direction outer end 24A and the vehicle width of the rear cross member 24 are provided. A pair of front and rear lower arm support pieces 30 is provided between the direction center 24B.

  As shown in FIG. 3, the lower arm support piece 28 supports a vehicle width direction inner end 32A of the front lower arm 32 which is elongated in the vehicle width direction so as to be movable around a rotation shaft 34 along the vehicle body front-rear direction. Yes. As shown in FIGS. 5 and 6, the lower arm support piece 30 has a rotation shaft 38 (in the vehicle longitudinal direction) extending along the vehicle width direction inner end 36 </ b> A of the rear lower arm 36 as an arm member elongated in the vehicle width direction. (Refer to FIG. 6) It is movably supported around. The vehicle width direction outer ends 32B and 36B of the front lower arm 32 and the rear lower arm 36 are connected to an axle carrier (not shown) for rotatably supporting wheels (wheels).

  As shown in FIG. 6, a spring seat 36 </ b> C is formed at the center in the longitudinal direction of the rear lower arm 36. The compression coil spring 18 has a posture in which the axis thereof is substantially coincided with the vertical direction of the vehicle body, and a spring seat 36C of a spring seat 36C of a suspension mount brace 20 fixedly held by the rear side member 12 as will be described later. Between the two. In this embodiment, the compression coil spring 18 has a pigtail shape in which the diameters of the lower end 18A and the upper end 18B are narrower than the diameter of the central portion 18C. A spring seat 40 is sandwiched between the lower end 18A of the compression coil spring 18 and the spring seat 36C, and between the upper end 18B of the compression coil spring 18 and the spring receiving portion 20A of the suspension mount brace 20. The spring seat 42 is sandwiched.

  Thereby, in the rear suspension 16, the rear cross member 24, that is, the rear wheel is elastically supported with respect to the vehicle body, and each vehicle width direction outer end 36B of the rear lower arm 36, that is, the rear wheel is allowed to be displaced in the vertical direction of the vehicle body. It is said that. The compression coil spring 18 transmits a load from the rear lower arm 36 to the rear side member 12 and applies the reaction force to the rear side member 12 while changing the amount of deformation (compression) along with the vertical movement of the rear wheel and applying a reaction force. It is set as the structure which supports.

  Further, as shown in FIGS. 3 to 6, the rear suspension 16 includes a shock absorber 44. As shown in FIG. 6, the cylinder 46 that is a vehicle body side member of the shock absorber 44 has an upper end 46 </ b> A fixed to an upper wall portion 48 </ b> A that forms a wheel house 48. The rod 50, which is inserted into the cylinder 46 so as to be able to advance and retract (extend / contract) and constitutes the wheel side member of the shock absorber 44, has a lower end 50A formed between the outer end 36B in the vehicle width direction of the rear lower arm 36 and the spring seat 36C. It is connected to the rod connecting portion 36D so as to be rotatable around a rotation shaft 52 along the longitudinal direction of the vehicle body. The shock absorber 44 is configured to generate a damping force by moving the rod 50 forward and backward with respect to the cylinder 46 as the rear wheel moves up and down.

  Further, as shown in FIG. 5, the rear suspension 16 is supported by a pair of front and rear upper arm support pieces 51 provided on the side rail 26 of the rear suspension member 14 and an upper arm (not shown) connected to the axle carrier. The description is omitted for these.

  As shown in FIG. 6, the rear side member 12 extending along the longitudinal direction of the vehicle body has a rear floor panel 55 in which the opening end of the skeleton forming portion 54 that opens upward in the vertical direction of the vehicle body is joined to the skeleton forming portion 54. Are closed to form a closed cross-sectional structure. A panel 56 constituting the wheel house 48 described above extends from the standing wall 54A on the outer side in the vehicle width direction of the skeleton forming portion 54. The rear side member 12 is reinforced by a rear side member reinforcement 58 joined to the standing wall 54A, the bottom wall 54B, and the standing wall 54C on the inner side in the vehicle width direction of the skeleton forming portion 54.

  In the rear suspension 10, as shown in FIGS. 1 and 2, a weld nut 60 whose axial direction is substantially aligned with the vertical direction of the vehicle body is formed on the bottom wall 54 </ b> B of the skeleton forming portion 54 constituting the rear side member 12. Is fixed. In this embodiment, the lower end 60A of the weld nut 60 is fixed to a portion of the rear side member reinforcement 58 that is overlapped with the inner surface of the bottom wall 54B by welding. Further, the upper portion 60 </ b> B of the weld nut 60 is fixed to a bracket 62 provided in the rear side member 12. As a result, the weld nut 60 has a wide support span (not a cantilever structure) and is difficult to be displaced in the falling direction with respect to the bottom wall 54B. An upper portion of a bolt 64 is screwed into the weld nut 60, and an intermediate portion and a lower portion of the bolt 64 penetrate the bottom wall 54B and the rear side member reinforcement 58 and project downward from the rear side member 12 in the vehicle body vertical direction. ing.

  Further, as shown in FIG. 1, a flange 66A of a bracket 66 formed in a cross-sectional hat shape opening upward is joined to the skeleton forming portion 54 in front of the welded portion of the rear side member 12 where the weld nut 60 is fixed. 66 projects downward from the bottom wall 54B in the vertical direction of the vehicle body. A lower end 68A of a weld nut 68 is fixed to the bottom wall 66B of the bracket 66. The upper portion 68B of the weld nut 68 is fixed to a reinforcing ring 70 that is sandwiched and held between the bottom wall 54B and the flange 66A of the bracket 66. As a result, the weld nut 68 has a wide support span (not a cantilever structure) and is difficult to be displaced in the falling direction with respect to the bottom wall 66B.

  On the other hand, as shown in FIG. 5, a collar 72 is fixed to the outer end 22 </ b> A in the vehicle width direction of the front cross member 22 constituting the rear suspension member 14. A collar 74 as a holding member is fixed to the outer end 24A in the vehicle width direction of the rear cross member 24 constituting the rear suspension member 14. As shown in FIG. 1, the collars 72 and 74 are formed in a substantially cylindrical shape in which the axial direction is substantially coincided with the vertical direction of the vehicle body.

  In the rear suspension structure 10, in a state where the upper end 72A of the collar 72 is in contact with the bottom wall 66B of the bracket 66, a bolt 76 penetrating the collar 72 and the bottom wall 66B is screwed into the weld nut 68, The collar 72 is fastened to the bracket 66 by sandwiching a washer 78 between the lower end 72 </ b> B of the collar 72 and the head 76 </ b> A of the bolt 76. Further, in the rear suspension part structure 10, the bolts 64 are inserted into the collars 74 and the nuts 80 are screwed into the bolts 64 while the upper ends 74 </ b> A of the collars 74 are in contact with the bottom walls 54 </ b> B. Is fastened to the rear side member 12. Thus, the rear suspension member 14 is supported (connected) to the rear side member 12 at the outer end 22A in the vehicle width direction of the front cross member 22 and the outer end 24A in the vehicle width direction of the rear cross member 24.

  As shown in FIGS. 1 and 2, in the rear suspension part structure 10, the spring receiving part 20 </ b> A of the suspension mount brace 20 is fastened together with the collar 74 by bolts 64 and nuts 80. Specifically, the suspension mount brace 20 is mainly composed of an upper panel 82 formed in a substantially disk shape and a lower panel 84 joined to the lower surface of the upper panel 82. As shown in FIG. 7, a fastening seat 82A is formed at the center of the upper panel 82. The fastening seat 82A has a substantially circular shape in plan view, and the lower end 74B of the collar 74 abuts over substantially the entire surface. A through hole 82B through which the bolt 64 is inserted is formed at the center.

  The lower panel 84 includes a spring receiving component 86 that is formed in a substantially circular shape in plan view and constitutes the spring receiving portion 20A, an arm portion 88 that projects from the peripheral edge of the spring receiving component 86 to the front side in the vehicle longitudinal direction, and an arm portion. And a fastening portion 90 formed at the front end of 88. The spring receiving component 86 is formed with a nut hole 86A in the shaft center portion and has a conical wall 86B suspended from the periphery of the nut hole 86A, and positions the spring seat 42 in the conical wall 86B. Further, a reinforcing standing wall portion 86 </ b> C is suspended from a peripheral portion excluding the extending portion of the arm portion 88 in the spring receiving component 86.

  An upper panel 82 is coaxially joined to the upper surface of the spring receiving component 86. As shown in FIGS. 1 and 2, the outer diameter of the upper panel 82 is made larger than the outer diameter (coil diameter) of the compression coil spring 18, that is, the diameter of the annular load input portion, and the fastening seat 82A. The outer diameter is smaller than the outer diameter of the compression coil spring 18. The upper panel 82 and the spring receiving component 86 described above constitute the spring receiving portion 20A of the suspension mount brace 20.

  As shown in FIGS. 1 and 7, the fastening portion 90 of the lower panel 84 is located above the spring receiving component 86, that is, the spring receiving portion 20A, in the vertical direction of the vehicle body. Inclined with respect to the vertical direction. Standing wall portions 88A and 90A continuous from the standing wall portion 86C are formed on the periphery of the arm portion 88 and the fastening portion 90. Further, the lower panel 84 includes a protruding portion 92 that protrudes from the lower end (periphery) of the standing wall portions 86C, 88A, and 90A of the spring receiving component 86, the arm portion 88, and the fastening portion 90, and the rear end portion of the protruding portion 92 The vertical wall 92A is suspended so as to surround the spring receiving portion 20A over a substantially half circumference.

  The suspension mount brace 20 described above is fastened to the rear side member 12 together with the collar 74 by the bolt 64 and the nut 80 at the fastening seat 82A of the upper panel 82 constituting the spring receiving portion 20A as described above. That is, as shown in FIGS. 1 and 2, the fastening seat 82 </ b> A (spring receiving portion 20 </ b> A) has an upper surface in contact with the lower end 74 </ b> B of the collar 74 and a lower surface sandwiching the washer 94 with the nut 80. The nut 80 is located in the conical wall 86 </ b> B of the spring receiving component 86.

  Thus, the suspension mount brace 20 is fixedly supported (held) by the rear side member 12 so that the load from the compression coil spring 18 can be supported by the spring receiving portion 20A. The spring receiving portion 20A is positioned so as to be spaced downward from the rear side member 12 (bottom wall 54B) by holding the collar 74 between the rear side member 12 and being held by the rear side member 12. Yes.

  Further, in the rear suspension part structure 10, as shown in FIG. 4, the fastening part 90 of the suspension mount brace 20 is fixed to the rear side member 12. Specifically, as shown in FIG. 1, a bracket 96 is joined to the lower surface of the bottom wall 54 </ b> B of the skeleton forming portion 54 constituting the rear side member 12, and the head positioned at the upper end of the bolt 98 is connected to the bracket 96. The portion 98A is fixed. Therefore, the bolt 98 projects downward in the vehicle body vertical direction with respect to the bracket 96. The fastening portion 90 is fastened to the rear side member 12 (bracket 96) by screwing a nut 100 into a bolt 98 inserted through a bolt hole 90B (see FIG. 7) formed in the shaft center portion. In this embodiment, the spacer 102 is sandwiched between the bracket 96 and the fastening portion 90, and the washer 104 is sandwiched between the fastening portion 90 and the nut 100.

  Next, the operation of this embodiment will be described.

  In the rear suspension structure 10 having the above-described configuration, the loads of the compression coil spring 18 and the shock absorber 44 constituting the rear suspension 16 are supported by the vehicle body. A load from the compression coil spring 18 is supported by the rear side member 12 via the spring receiving portion 20A of the suspension mount brace 20 and the collar 74. When the rear wheel, that is, the outer end 36B in the vehicle width direction of the rear lower arm 36 moves up and down with respect to the rear side member 12 (vehicle body) as the vehicle to which the rear suspension structure 10 is applied travels, the compression amount of the compression coil spring 18 changes. As a result, the transmission load to the rear side member 12 varies.

  Here, in the rear suspension part structure 10, the suspension mount brace 20 is held by the rear side member 12 via the collar 74, so that the rear side member 12 receives the load from the compression coil spring 18 via the collar 74. This is transmitted to the member 12. For this reason, the rear side member 12 can be set regardless of the size of the load receiving portion from the compression coil spring 18 in the spring receiving portion 20A of the suspension mount brace 20 (the diameter of the upper end 18B of the compression coil spring 18). The dimension and shape necessary for the function can be taken without setting the overhanging portion or the like so as to directly receive the load of the compression coil spring 18. That is, restrictions on the rear side member 12 are reduced, and the degree of freedom in design is improved.

  In this embodiment, the rear side member 12 that supports the load from the collar 74 having a smaller diameter than the upper end 18B of the compression coil spring 18 is downsized (thinned) as shown in FIG.

  Further, in the rear suspension part structure 10, the suspension mount brace 20 includes the arm part 88 and the fastening part 90 that connect the spring receiving part 20 </ b> A and the rear side member 12, so that the surface rigidity (with respect to bending and twisting) of the spring receiving part 20 </ b> A is reduced. High rigidity). Thereby, the structure which transmits a load to the rear side member 12 via the collar 74 smaller in diameter than the upper end 18B of the compression coil spring 18 as described above is realized. That is, as schematically shown in FIG. 8, in the spring receiving portion 20A, the input portion A of the load Fs from the compression coil spring 18 and the input portion B of the load Fb (support reaction force) from the collar 74 have a diameter. The portion 18C near the rotation shaft 38 of the compression coil spring 18 as the rear lower arm 36 swings as shown in FIG. 9 is easy to bend due to the offset in the direction. Although it tends to be twisted due to deformation (so-called accordion expansion and contraction) that is different in compression amount from the distant portion 18D, the surface rigidity of the spring receiving portion 20A is improved by providing the arm portion 88 and the fastening portion 90 as described above. Has been improved.

  In particular, in this embodiment, the arm portion 88 and the fastening portion 90 are provided by configuring the spring receiving portion 20A of the suspension mount brace 20 by the upper panel 82 and the spring receiving configuration portion 86 of the lower panel 84 (in two parts). At the same time, it was possible to obtain the optimum plate thickness and shape against the offset input shown in FIG. Accordingly, the fastening seat 82A and the conical wall 86B can be set while ensuring the required rigidity and strength of the spring receiving portion 20A, and the suspension mount brace 20 having equivalent performance is configured as a single member. In comparison, the weight could be reduced.

  As described above, in the rear suspension unit structure 10, it is possible to effectively suppress the deformation of the spring receiving portion 20 </ b> A in accordance with the load support from the compression coil spring 18 with a lightweight configuration, thereby ensuring safety and handling stability. Improvement is achieved.

  Here, in the rear suspension structure 10, since the rear suspension member 14 is supported by the rear side member 12 via the collar 74, the rear suspension member 14 is supported by the rear side member 12 and the suspension mount brace 20 is held (compressed). The function of receiving the coil spring 18 is integrated. Thereby, reduction of an assembly man-hour can be aimed at. Since the rear suspension member 14 is not provided with the spring receiving portion 20A, the width of the rear cross member 24 constituting the rear suspension member 14 (the width along the longitudinal direction of the vehicle body) is set to the dimension shape of the compression coil spring 18. Can be set independently. For this reason, it is sufficient that the rear cross member 24 has a dimensional shape corresponding to its function (required performance), and it is possible to configure the rear cross member 24 compactly while avoiding enlargement. That is, restrictions on the rear suspension member 14 are reduced, and the degree of freedom in design is improved.

  In the rear suspension structure 10, the rear suspension member 14 is supported on the rear suspension member 14 via a collar 74 that holds the spring receiving portion 20A spaced apart from the rear side member 12 (bottom wall 54B) in the vertical direction of the vehicle body. Therefore, the rear side member 12 can be supported by various variations of the rear suspension member 14 while the rear side member 12 and the suspension mount brace 20 are made common.

  For example, the rear suspension part structure 110 according to the second embodiment shown in FIG. 10 is based on the rear suspension part structure 10 in which the rear suspension member 14 is fixedly supported (stiffened) to the rear side member 12. The suspension member 14 is different in that it employs a vibration isolating structure in which the suspension member 14 is elastically supported with respect to the rear side member 12 via the suspension mount 112. The suspension mount 112 includes a cushion rubber 116 disposed between a collar 74 and a cylindrical mount case 114 that coaxially surrounds the collar 74. In the rear suspension structure 110, the outer end 24 </ b> A in the vehicle width direction of the rear cross member 24 constituting the rear suspension member 14 is fixed to the mount case 114. That is, in the rear suspension section structure 110, the rear suspension member 14 is elastically supported by the rear side member 12 via the suspension mount 112 including the collar 74, and the rear suspension member 14 with respect to the rear side member 12 in the rear suspension section structure 10 is supported. 3 functions including the support function of the suspension mount 112 (cushion rubber 116) and the support function of the suspension mount brace 20 (receiving of the compression coil spring 18) are integrated.

  As described above, in the structure in which the rear suspension member 14 is supported by the rear side member 12 via the collar 74, the rear suspension can be provided with different variations such as rigid or elastic support without changing the rear side member 12 and the suspension mount brace 20. The member 14 can be supported. Although not shown, the rear suspension member 14 is supported by the rear side member 12 via the collar 74, so that, for example, the rear suspension member 14 for a front wheel drive vehicle and the rear suspension for a four wheel drive vehicle are used. The rear side member 12 and the suspension mount brace 20 can be shared by the member 14.

  That is, in the structure in which the rear suspension member 14 is supported on the rear side member 12 via the collar 74 in the rear suspension structure 10, 110, various variations are provided between the rear side member 12 (bottom wall 54B) and the spring receiving portion 20A. It is possible to correspond to the rear suspension member 14 (absorb differences among variations).

  In the above embodiment, an example in which the rear suspension structure 10, 110 is applied to an automobile provided with the multi-link type rear suspension 16 is shown. However, the present invention is not limited to this, for example, a trailing arm type The present invention can be applied to an automobile equipped with various types of rear suspension such as a rear suspension.

It is a sectional side view showing the important section of the rear suspension part structure concerning a 1st embodiment of the present invention. It is a front sectional view showing the important section of the rear suspension part structure concerning a 1st embodiment of the present invention. It is a perspective view showing an important section of a rear suspension part structure concerning a 1st embodiment of the present invention. FIG. 4 is a perspective view showing a main part of the rear suspension part structure according to the first embodiment of the present invention as seen from an angle different from FIG. 3. It is a disassembled perspective view which shows the main components of the rear suspension part structure which concerns on the 1st Embodiment of this invention. It is a front sectional view showing the rear suspension part structure concerning a 1st embodiment of the present invention. 1 is a perspective view showing a suspension mount brace constituting a rear suspension part structure according to a first embodiment of the present invention. It is a schematic diagram for demonstrating the load input site | part to the suspension mount brace which comprises the rear suspension part structure which concerns on the 1st Embodiment of this invention. It is a schematic diagram for demonstrating the input mechanism of the torsional load to the suspension mount brace which comprises the rear suspension part structure which concerns on the 1st Embodiment of this invention. It is front sectional drawing which shows the principal part of the rear suspension part structure which concerns on the 2nd Embodiment of this invention.

Explanation of symbols

10 Rear suspension structure (car body rear structure)
12 Rear side member (body frame)
14 Suspension member 18 Compression coil spring (spring, coil spring)
20 Suspension mount brace (spring receiving part, connecting member)
20A Spring receiving portion 24 Rear cross member (suspension member)
36 Rear lower arm (arm member)
74 Color (holding member)
110 Rear suspension structure (car body rear structure)

Claims (4)

A suspension member supported by the body frame,
The other end is disposed on the upper side of the vehicle body in the vertical direction with respect to the arm member supported by the suspension member so as to be rotatable in a direction in which one end side is displaced in the vertical direction of the vehicle body, and receives a load from a spring provided on the arm member A spring receiver for,
A holding member interposed between the spring receiving portion and the vehicle body skeleton, and holding the spring receiving portion at a position spaced apart from the vehicle body skeleton in the vehicle vertical direction;
Car body rear structure with The spring is a coil spring;
The holding member is formed in a columnar shape having a constant cross-sectional shape at each part in the vertical direction of the vehicle body, and a contact surface with the spring receiving part is inside the load input part from the coil spring in the spring receiving part. The vehicle body rear part structure according to claim 1, which is set within a range.   The vehicle body rear portion structure according to claim 1, further comprising a connecting member that connects a peripheral portion of the spring receiving portion and the vehicle body skeleton. The vehicle body rear part structure according to any one of claims 1 to 3, wherein the suspension member is supported by the vehicle body skeleton via the holding member.

Images