JP4258451B2 - Shock absorber mounting structure - Google Patents

Description

  The present invention relates to a shock absorber mounting structure applied to a vehicle such as an automobile, and more particularly to a shock absorber mounting structure in which a shock absorber is attached to a support shaft supported by a vehicle body.

  Conventionally, a shock absorber mounting structure in which a shock absorber is mounted on a support shaft supported by a vehicle body is known. For example, a configuration is known in which a brace for connecting a shock absorber is attached to a side member using insertion holes formed in a pair of vertical wall portions of the side member made of a U-shaped member (for example, a patent) Reference 1).

It is also known that the seat suspension anchor reinforcement is attached to the rear suspension link mounting bracket, and the anchor reinforcement and the rear suspension link mounting bracket are fastened together with a bolt inserted into the side member of the vehicle body. (For example, refer to Patent Document 2).
Japanese Patent Laid-Open No. 11-59499 Japanese Utility Model Publication No. 63-202578

  However, in the shock absorber mounting structure disclosed in Patent Documents 1 and 2, the mounting structure of the seat supported by the vehicle body and disposed above the side member is not considered. As a result, it is necessary to separately provide a reinforcing structure so that the seat can be reliably supported at the seat attachment portion of the side member. For this reason, the number of parts of the seat mounting portion is large.

  In view of the above facts, an object of the present invention is to provide a shock absorber mounting structure capable of reducing the number of parts of the seat mounting portion.

  The present invention according to claim 1 is a shock absorber mounting structure in which a shock absorber is attached to a support shaft supported by a vehicle body, wherein a part of the support shaft is a seat mounting shaft for mounting an occupant seating seat to the vehicle body, The support shaft for mounting the shock absorber and the seat mounting shaft are common.

  By using a part of the support shaft supported by the vehicle body for mounting the shock absorber as the seat mounting shaft for mounting the seat, the support shaft for mounting the shock absorber and the seat mounting shaft are made common.

  According to a second aspect of the present invention, in the shock absorber mounting structure according to the first aspect, the shock absorber mounting structure includes a side member having a pair of opposed wall portions, and the support shaft is inserted through the pair of opposed wall portions. The intermediate portion of the support shaft located between the pair of opposing wall portions is the seat mounting shaft, and the shock absorber is projected to the protruding portion of the support shaft protruding from one of the pair of opposing wall portions. Is installed.

  In addition to the content of the first aspect, an intermediate portion positioned between the pair of wall portions in the support shaft that passes through the pair of opposing wall portions of the side member serves as a seat attachment shaft for attaching the seat. For this reason, both axial ends of the seat mounting shaft are supported by a pair of opposing wall portions of the side member.

  According to a third aspect of the present invention, in the shock absorber mounting structure according to the second aspect, the intermediate portion of the support shaft is located on the outer side in the vehicle width direction from the protruding portion of the support shaft.

  In addition to the content of the second aspect, the intermediate portion of the support shaft serving as the seat mounting shaft is located on the outer side in the vehicle width direction from the protruding portion of the support shaft to which the shock absorber is mounted.

  According to a fourth aspect of the present invention, in the shock absorber mounting structure according to the third aspect of the present invention, the shock absorber mounting structure has a floor panel formed with a vertical wall portion that supports the protruding portion of the support shaft.

  In addition to the content of the third aspect, the protruding portion of the side member is supported by the vertical wall portion of the floor panel.

  According to a fifth aspect of the present invention, in the shock absorber mounting structure according to the fourth aspect, the vertical wall portion of the floor panel is a vertical wall portion of a container portion formed below the seat.

  In addition to the content of Claim 4, the vertical part of the container part formed under the sheet | seat in the floor panel is used, The protrusion part of the support shaft protruded from one of a pair of wall part which a side member opposes. To support.

  According to a sixth aspect of the present invention, in the shock absorber mounting structure according to any one of the first to fifth aspects, the seat has a front portion of the seat or a rear portion of the seat that is detachable from the seat mounting shaft. It is characterized by becoming.

  In addition to the content described in any one of claims 1 to 5, the seat mounting shaft is a detachable seat striker.

  According to a seventh aspect of the present invention, in the shock absorber mounting structure according to the first aspect, a portion of the support shaft to which the shock absorber is attached is disposed outside the vehicle compartment, and the seat mounting shaft is provided in the vehicle interior. It is arrange | positioned in the site | part communicated inside.

  In addition to the contents described in claim 1, a portion for attaching the shock absorber in the support shaft is disposed outside the vehicle compartment, and the seat mounting shaft is disposed in a portion communicating with the inside of the vehicle compartment. This prevents the interior and exterior of the passenger compartment from communicating with each other.

  In the shock absorber mounting structure in which the shock absorber is attached to the support shaft supported by the vehicle body, a part of the support shaft is a seat mounting shaft for mounting an occupant seat to the vehicle body. Since the support shaft for mounting the absorber and the seat mounting shaft are common, the number of parts of the seat mounting portion can be reduced.

  The present invention according to claim 2 is the shock absorber mounting structure according to claim 1, wherein the shock absorber mounting structure has a side member having a pair of opposed wall portions, and the support shaft is inserted through the pair of wall portions opposed to each other. The intermediate portion of the support shaft positioned between the pair of wall portions is a seat mounting shaft, and the shock absorber is attached to the protruding portion of the support shaft protruding from one of the pair of opposing wall portions. In addition to the effect described in item 1, the support rigidity of the seat mounting shaft can be improved.

  According to a third aspect of the present invention, in the shock absorber mounting structure according to the second aspect, the intermediate portion of the support shaft is located on the outer side in the vehicle width direction from the protruding portion of the support shaft. The seat can be supported at the outer side of the seat in the vehicle width direction.

  According to a fourth aspect of the present invention, in the shock absorber mounting structure according to the third aspect, since it has a floor panel formed with a vertical wall portion that supports the protruding portion of the support shaft, in addition to the effect of the third aspect, Further, it is possible to improve the support rigidity of the protruding portion for attaching the shock absorber on the support shaft.

  The present invention according to claim 5 is the shock absorber mounting structure according to claim 4, wherein the vertical wall portion of the floor panel is the vertical wall portion of the container portion formed below the seat. In addition, it is possible to improve the support rigidity of the protruding portion of the support shaft to which the shock absorber is attached without forming an extra vertical wall portion on the floor panel.

  The present invention according to claim 6 is the shock absorber mounting structure according to any one of claims 1 to 5, wherein the seat has a front portion of the seat or a rear portion of the seat which is detachable from the seat mounting shaft. Therefore, in addition to the effect described in any one of claims 1 to 5, the seat mounting shaft can be used as a detachable seat striker.

  According to a seventh aspect of the present invention, in the shock absorber mounting structure according to the first aspect, the portion of the support shaft to which the shock absorber is attached is disposed outside the vehicle compartment, and the seat mounting shaft is disposed inside the vehicle compartment. In addition to the effect described in claim 1, it is possible to prevent the inside and outside of the passenger compartment from communicating with each other at the portion where the support shaft is provided.

  An embodiment of a shock absorber mounting structure according to the present invention will be described with reference to FIGS.

  In the figure, the arrow UP indicates the vehicle body upward direction, the arrow FR in the figure indicates the vehicle body front direction, and the arrow IN in the figure indicates the vehicle width inside direction.

  As shown in FIG. 5, in the present embodiment, a front seat 12 and a rear seat 14 are disposed in the vehicle interior of the automobile body 10. Further, at the rear portion of the seat cushion 16 of the rear seat 14, a seat back 18 has a rotating shaft (reclining shaft) 20 as a center of rotation and a vehicle front (in the direction of arrow A in FIG. 1) and a rear of the vehicle (in the direction of arrow B in FIG. ) To be rotatable. The rotating shaft 20 is disposed along the vehicle width direction below the seat back 18, and both ends of the rotating shaft 20 are supported by bearing portions 22 </ b> A formed on the seat cushion frame 22. The bearing portion 22 </ b> A of the seat cushion frame 22 is formed at the rear end upper portion of the side portion 22 </ b> B of the seat cushion frame 22.

  As shown in FIG. 2, a storage case 25 that is recessed toward the lower side of the vehicle body is formed in a portion below the rear seat 14 in the floor panel 24 that constitutes the passenger compartment floor. The shape is rectangular with the vehicle width direction as the longitudinal direction.

  A front end lower portion 22C of the side portion 22B of the seat cushion frame 22 is rotatably supported by a shaft 26. The seat cushion frame 22 is above the vehicle body (in the direction of arrow C in FIG. 2) and below the vehicle body with the shaft 26 as a rotation center. It can rotate in the direction of arrow D in FIG. Further, the bracket 28 that supports the shaft 26 is fixed to the upper surface of the upper wall portion 24 </ b> A that is the front side of the container 25 in the floor panel 24.

  As shown in FIG. 5, a frame fixing release means 30 for fixing the seat cushion frame 22 to the seated state shown in FIG. 5 and releasing the fixing is provided at the rear end lower portion 22D of the side portion 22B of the seat cushion frame 22. It is arranged.

  As shown in FIG. 3, a striker 32 is disposed at a position below the frame fixing release means 30. Further, the frame fixing release means 30 includes a base portion 34 fixed to the rear end lower portion 22D of the side portion 22B of the seat cushion frame 22 and a hook 38 rotatably supported on the base portion 34 by a shaft 36. The lower end portion 38A of the hook 38 is engaged with the lower portion of the striker 32. Further, the base portion 34 and the hook 38 are connected by a spring 40, and the spring 40 urges the hook 38 in a direction to engage with the striker 32. Further, a wire 42 is connected to the upper rear portion 38B of the hook 38. The wire 42 extends toward the rear of the vehicle body and is connected to an operation unit (not shown).

  Therefore, by operating the operation unit to which the wire 42 is connected, the upper end 38B of the hook 38 is moved backward (in the direction of arrow E in FIG. 3) via the wire 42 against the urging force of the spring 40. As a result, the hook 38 is rotated upward (in the direction of arrow F in FIG. 3) about the shaft 36 so that the hook 38 and the striker 32 are engaged with each other as shown by a two-dot chain line in FIG. Can be canceled.

  As shown in FIG. 1, a rear side member 44 is coupled to the lower surface side of the floor panel 24 in the vehicle width direction outside floor plate portion 24 </ b> B of the container 25 along the vehicle body front-rear direction. The cross-sectional shape of the rear side member 44 viewed from the front-rear direction of the vehicle body is a U-shape with the opening directed upward of the vehicle body. A closed cross-sectional portion 46 extending in the longitudinal direction of the vehicle body is formed. The closed cross section 46 is a vehicle body reinforcement member for supporting a load applied to the vehicle body.

  As shown in FIG. 4, the vehicle width direction outer floor plate portion 24 </ b> B of the floor panel 24 constitutes a ceiling wall portion of the closed cross-section portion 46 and a through hole 47 is formed. Further, the through hole 47 of the floor panel 24 has a rectangular shape whose longitudinal direction is the longitudinal direction of the vehicle body. As shown in FIG. 1, the lower part of the frame fixing release means 30 can be inserted into the through hole 47. ing.

  As shown in FIG. 1, through-holes 48 and 50 are formed at opposing positions in the pair of opposing vertical wall portions 44A on the inner side in the vehicle width direction and vertical wall portion 44B on the outer side in the vehicle width direction of the rear side member 44, respectively. ing. Further, a side wall portion 24C as a vertical wall portion of the container 25 in the floor panel 24 is disposed on the inner side in the vehicle width direction of the vertical wall portion 44A of the rear side member 44, and a seat portion 24D formed on the side wall portion 24C and The vertical wall portion 44B of the rear side member 44 is disposed to face the rear side member 44. The seat 24D is formed by bulging a part of the side wall 24C of the floor panel 24 outward in the vehicle width direction, and the bottom 24E of the seat 24D is a vertical wall.

  A through hole 52 is formed coaxially with the through holes 48 and 50 in the bottom 24E of the seat 24D.

  A cylindrical collar 56 is inserted into the through holes 48 and 50, and a bolt 58, which is a support shaft, is inserted into the collar 56 from the outside in the vehicle width direction to the inside in the vehicle width direction. The bolt 58 is inserted through the through holes 48, 50 and 52. A nut 60 is screwed into the bolt 58 from the inside in the vehicle width direction, and the bolt 58 is fixed to the rear side member 44 and the floor panel 24.

  An intermediate portion 56 </ b> A located between the pair of vertical wall portions 44 </ b> A and 44 </ b> B of the rear side member 44 in the collar 56 through which the bolt 58 is inserted functions as the striker 32. Further, the upper end portion 64A of the shock absorber 64 of the rear tire 62 (see FIG. 5) is attached to the protruding portion 56B of the collar 56 into which the bolt 58 protruding from the vertical wall portion 44A on the inner side in the vehicle width direction is inserted. The upper end portion 64A of the shock absorber 64 has a structure in which rubber is filled between the inner cylinder and the outer cylinder in order to reduce vibration and input load due to the cushion effect, and the upper end portion of the shock absorber 64. A collar 56 is inserted through 64A.

  As shown in FIG. 1, the intermediate portion 56 </ b> A that becomes the striker 32 in the collar 56 through which the bolt 58 is inserted is more than the protruding portion 56 </ b> B of the collar 56 through which the bolt 58 to which the upper end portion 64 </ b> A of the shock absorber 64 is attached. It is on the outside in the vehicle width direction.

  Further, the projection 56B of the collar 56 into which the bolt 58 to which the upper end portion 64A of the shock absorber 64 is attached is inserted outside the vehicle compartment 69, and the striker in the collar 56 into which the bolt 58 is inserted. The intermediate portion 56 </ b> A that is 32 is disposed in the closed cross-sectional portion 46 that communicates with the inside of the vehicle interior 69 through the through hole 47. For this reason, the inside and the outside of the passenger compartment 69 are prevented from communicating with each other at the portion where the collar 56 into which the bolt 58 is inserted is disposed.

  As shown in FIG. 2, the seat back 18 is moved forward (in the direction of arrow A in FIG. 2) around the rotary shaft 20 from the normal use position that is shown by a solid line in FIG. , And can be moved forward on the seat cushion 16 as indicated by a one-dot chain line in FIG.

  Further, as shown by a two-dot chain line in FIG. 3, by releasing the engagement between the hook 38 and the striker 32 of the frame fixing release means 30, the rear seat 14 is centered on the shaft 26 on the front side of the vehicle body shown in FIG. In addition, the vehicle can be rotated upward (in the direction of arrow C in FIG. 2), and can be moved to a front storage position indicated by a two-dot chain line in FIG.

  The inner side in the vehicle width direction of the wheel house inner 27 is coupled to the outer end in the vehicle width direction of the floor plate 24B in the vehicle width direction on the floor panel 24, and the outer periphery of the wheel house inner 27 has a diameter. A flange 27B is formed outward in the direction. Further, the flange 27B of the wheel house inner 27 is coupled to the flange 70A of the wheel house outer 70, and the flange 70A of the wheel house outer 70 is formed on the outer peripheral portion of the wheel house outer 70 toward the radially outer side. Yes. In addition, the code | symbol 72 of FIG. 1 has shown the quarter panel.

  Next, the operation of this embodiment will be described.

  In this embodiment, as shown in FIG. 1, the bolt 58 has through holes 48 and 50 formed in the vertical wall portions 44 </ b> A and 44 </ b> B of the rear side member 44 and the bottom portion of the seat portion 24 </ b> D provided in the side wall portion 24 </ b> C of the floor panel 24. A through hole 52 formed in 24E is inserted, and a bolt 58 is fixed to the rear side member 44 and the floor panel 24. Further, a protrusion 56B on the inner side in the vehicle width direction of the collar 56 through which the bolt 58 is inserted serves as a shaft for attaching the upper end portion 64A of the shock absorber 64 of the rear tire 62, and the collar 56 through which the bolt 58 is inserted. An intermediate portion 56 </ b> A on the outer side in the vehicle width direction is a striker 32 that serves as an attachment portion of the frame fixing release means 30 of the rear seat 14.

  As a result, there is no need to separately reinforce the portion for attaching the upper end portion 64A of the shock absorber 64 and the attachment portion of the striker 32, and the number of parts can be reduced. For this reason, the assembly process can be reduced, the productivity can be improved, and the weight can be reduced.

  Further, in this embodiment, the intermediate portion 56A located between the vertical wall portions 44A and 44B in the collar 56 through which the bolts 58 that pass through the vertical wall portions 44A and 44B of the rear side member 44 are attached is for attaching the rear seat 14. The striker 32 becomes.

  As a result, the striker 32 does not protrude above the floor panel 24 in the vehicle width direction outer floor plate portion 24B. For this reason, the distance between the rear seat 14 and the outer floor plate portion 24B in the vehicle width direction of the floor panel 24 can be narrowed, and the outer floor plate portion 24B in the vehicle width direction of the floor panel 24 can be made flat.

  Further, both end portions in the axial direction of the striker 32 through which the bolts 58 are inserted are respectively supported by the vertical wall portions 44A and 44B of the rear side member 44, and the support rigidity of the striker 32 through which the bolts 58 are inserted becomes high. For this reason, the support rigidity of the rear seat 14 can be improved.

  Further, in the present embodiment, the collar 56 into which the bolt 58 protruding from the vertical wall portion 44A on the inner side in the vehicle width direction of the rear side member 44 is supported by the side wall portion 24C of the storage case 25 of the floor panel 24. As a result, the support rigidity of the protruding portion 56B of the collar 56 into which the bolt 58 for attaching the upper end portion 64A of the shock absorber 64 is inserted can be improved. For this reason, the support rigidity of the shock absorber 64 can be improved.

  In this embodiment, the intermediate portion 56A of the collar 56 into which the bolt 58 serving as the striker 32 is inserted is more than the protruding portion 56B of the collar 56 into which the bolt 58 to which the upper end portion 64A of the shock absorber 64 is attached. It is on the outside in the vehicle width direction. As a result, the rear seat 14 can be supported at the outer end in the vehicle width direction of the seat cushion 16 of the rear seat 14. For this reason, the vehicle width direction length of the seat cushion 16 of the rear seat 14 can be increased, and the length of the storage compartment 25 of the floor panel 24 in the vehicle width direction can be increased.

  In this embodiment, since the frame fixing / releasing means 30 of the rear seat 14 is detachable from the collar 56 through which the bolt 58 is inserted, as shown by a two-dot chain line in FIG. By releasing the engagement between the hook 38 and the striker 32, the rear seat 14 can rotate upward (in the direction of arrow C in FIG. 2) about the shaft 26 on the vehicle body front side shown in FIG. 2. It is possible to move to the front storage position indicated by a two-dot chain line in FIG.

  In the present embodiment, the bolt 58 protruding from the vertical wall portion 44A of the rear side member 44 can be supported by using the side wall portion 24C of the container portion 25 formed below the rear seat 14 in the floor panel 24. As a result, the support rigidity of the bolt 58 for attaching the upper end portion 64A of the shock absorber 64 can be improved without forming an extra vertical wall portion on the floor panel 24.

  Further, in the present embodiment, the protruding portion 56B of the collar 56 into which the bolt 58 to which the upper end portion 64A of the shock absorber 64 is attached is inserted outside the vehicle interior 69, and the bolt 58 is inserted. An intermediate portion 56 </ b> A serving as the striker 32 in the collar 56 is disposed in the closed cross-sectional portion 46 that communicates with the inside of the vehicle interior 69 through the through hole 47. As a result, the interior and the exterior of the vehicle interior 69 are prevented from communicating with each other at the portion where the collar 56 into which the bolt 58 is inserted is disposed. For this reason, it can prevent that a noise, dust, etc. enter into the inside from the exterior of the compartment 69. FIG.

  Although the present invention has been described in detail with respect to specific embodiments, the present invention is not limited to the above-described embodiments, and various other embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art. For example, in the above embodiment, the bolt 58 as the support shaft is inserted through the cylindrical collar 56, but the collar 56 is omitted and the upper end portion 64A of the shock absorber 64 and the rear seat 14 are directly connected to the bolt 58 as the support shaft. It may be attached. Further, the support shaft is not limited to the bolt 58, and may be replaced with the bolt 58 to have other configurations such as a round bar.

  In the above embodiment, the intermediate portion 56A and the protruding portion 56B of the collar 56 are integrated, but instead, as shown in FIG. 6, the protruding portion 56B of the collar 56 is divided from the intermediate portion 56A. The protruding portion 56B of the collar 56 may be configured as an inner cylinder of the upper end portion 64A of the shock absorber 64.

  In the above embodiment, the shock absorber mounting structure of the present invention is applied to the rear seat 14. However, the shock absorber mounting structure of the present invention is also applied to mounting portions on other seats such as a front seat. Applicable.

FIG. 3 is an enlarged sectional view taken along line 1-1 of FIG. It is a schematic sectional side view which shows the shock absorber mounting structure which concerns on one Embodiment of this invention. FIG. 3 is an enlarged sectional view taken along line 3-3 in FIG. 1. It is the perspective view seen from the vehicle body diagonally back inner side which shows the floor panel of the shock absorber attachment structure which concerns on one Embodiment of this invention. 1 is a schematic side view showing a vehicle body to which a shock absorber mounting structure according to an embodiment of the present invention is applied. It is sectional drawing corresponding to FIG. 1 of the shock absorber mounting structure which concerns on other embodiment of this invention.

Explanation of symbols

14 Rear seat 16 Seat cushion 18 Seat back 22 Seat cushion frame 24 Floor panel 30 Frame fixing release means 32 Strike 44 Rear side member 44A Vertical wall portion inside vehicle width direction 44B Vertical wall portion outside vehicle width direction 46 Closed cross section 48 Through hole 50 Through-hole 52 Through-hole 56 Color 56A Middle part of collar 56B Projection part of collar 58 Bolt (support shaft)
60 Nut 64 Shock absorber 69 Car compartment

Claims (7)

In the shock absorber mounting structure that attaches the shock absorber to the support shaft supported by the vehicle body,
A part of the support shaft is a seat mounting shaft for mounting an occupant seating seat to a vehicle body, and the support shaft for mounting the shock absorber and the seat mounting shaft are common.   A side member having a pair of opposing wall portions, the support shaft passing through the pair of opposing wall portions, and an intermediate portion of the support shaft positioned between the pair of opposing wall portions 2. The shock absorber mounting structure according to claim 1, wherein the shock absorber is attached to a protruding portion of the support shaft that protrudes from one of the pair of opposing wall portions. .   The shock absorber mounting structure according to claim 2, wherein an intermediate portion of the support shaft is located on an outer side in a vehicle width direction than a protruding portion of the support shaft.   The shock absorber mounting structure according to claim 3, further comprising a floor panel formed with a vertical wall portion that supports the protruding portion of the support shaft.   The shock absorber mounting structure according to claim 4, wherein the vertical wall portion of the floor panel is a vertical wall portion of a container portion formed below the seat.   The shock absorber mounting structure according to any one of claims 1 to 5, wherein a front portion of the seat or a rear portion of the seat is attachable to and detachable from the seat mounting shaft.   The portion of the support shaft to which the shock absorber is attached is disposed outside the vehicle compartment, and the seat mounting shaft is disposed at a portion communicating with the inside of the vehicle compartment. The shock absorber mounting structure described.

Images