JP3889740B2 - Rear structure of the vehicle - Google Patents

Description

  The present invention relates to a rear structure of a vehicle capable of improving rigidity around a damper.

As rear structure of a vehicle, the left and right wheel house covering the wheel to the vehicle body floor is provided, provided a damper housing which supports the damper to those near the wheel house (the damper supporting member), respectively, the gusset between ho Lee Ruhausu and damper housing Those provided with are provided for practical use.
The rear structure of a practical vehicle is practically sufficient if a wheel house and a damper housing are separately provided and the surroundings of the wheel house and the damper housing are reinforced with gussets.

As such a rear part structure of a vehicle, one provided with a damper housing (damper support member) for supporting a damper in the vicinity of the wheel house is known (for example, see Patent Document 1).
JP 2000-16338 A (page 4, FIG. 2)

FIG. 10 is a diagram for explaining a conventional basic configuration. In a rear structure 200 of a vehicle disclosed in Patent Document 1, a wheel house 202 that covers wheels (not shown) is provided on a vehicle body floor 201, and a damper 203 is provided in the vicinity of the wheel house 202. the damper housing 204 which supports the provided having thereon a gusset (reinforcing member) 205 for reinforcing these ho Lee Ruhausu 202 and the damper housing 204 around, constituting a damper housing 204 from the side plate member 206 and the damper supporting member 207 The damper support member 207 is provided with a through-hole 208 through which the protrusion (upper part) 211 of the damper 203 passes, and holes 209 and 209 into which bolts (screw parts) 212 and 212 of the damper 203 are inserted.

  In the figure, reference numeral 213 denotes a base member on which a protruding portion 211 and bolts 212 and 212 are formed, 214 and 214 are nuts that are screwed into the bolts 212 and 212, and 215 is a coil spring assembled to the damper 203.

However, in the rear structure 200 of the vehicle of Patent Document 1, the wheel house 202, the damper housing 204, and the gusset 205 are provided with respective basic functions. For example, to improve the rigidity of the damper housing 204, There is a problem that it is necessary to increase the plate thickness of the damper support member 207 of the damper housing 204 and increase the weight of the vehicle body.
Further, in the rear structure 200 of the vehicle of Patent Document 1, since the force applied from the damper 203 is received only by the damper support member 207, the force applied from the damper 203 to the wheel house 202 and the gusset 205 cannot be dispersed. There was a drawback that the rigidity around the support member 207 could not be improved efficiently.

  That is, there is a demand for a vehicle rear structure that can efficiently improve the rigidity around the damper support member 207 without causing an increase in the weight of the vehicle body.

  It is an object of the present invention to provide a rear structure of a vehicle that solves the problem of increasing the weight of the vehicle body and can efficiently improve the rigidity around the damper.

The invention according to claim 1 is a vehicle in which vehicle body floors are attached to left and right floor frames, left and right wheel houses that cover wheels are provided on the vehicle body floor, and damper support members that support dampers are provided in the vicinity of these wheel houses. In the rear structure of the vehicle, the rear structure of the vehicle is configured by attaching a gusset for mutual reinforcement to the vehicle body floor, the wheel house, and the damper support member, and integrally attaching the upper end support portion of the damper to the gusset and the damper support member. The damper support member is a member that supports and attaches the damper, and includes a through hole that penetrates the upper part of the damper and a hole that penetrates the bolt of the damper, and the gusset accommodates the upper part of the damper. a substantially tunnel-like member, and the wheel house mounting portion removably attached to the wheel house, vehicle body floor A vehicle body floor mounting portion for mounting detachably a detachably attaching the support portion in the damper bolts damper supporting member as well as intermediate supports a damper between these wheel house mounting portion and the vehicle floor mounting portion, the upper portion of the damper The gusset inner surface is provided with a temporary fixing portion for temporarily fixing the damper so as to face each other, and a hook portion for hooking the temporary fixing portion is formed on the upper end support portion.

For example, if it is possible to efficiently improve the rigidity around the damper without increasing the weight of the vehicle body, it is preferable because the weight of the vehicle body can be reduced.
Accordingly, a gusset for reinforcing each other is attached to the vehicle body floor, the wheel house, and the damper support member, and the damper is integrally attached to the gusset and the damper support member.

That is, the vehicle body floor, attaching the gusset to achieve reinforcement of mutually wheel house and the damper supporting member, by mounting integrally the damper to the gusset and the damper supporting member, the vehicle body floor forces encountered the vehicle body side from the damper and ho Lee Disperse it in a house. As a result, efficient rigidity around the damper is improved.
In addition, the gusset is provided with a temporary fixing portion for temporarily fixing the protruding portion of the damper, and by providing a hooking portion for hooking the temporary fixing portion on the damper, when the damper is attached to the damper support member, the temporary fixing portion of the gusset is previously provided. The hook of the damper can be hung.

The invention according to claim 2 is characterized in that the gussets provided in the left and right wheel houses are coupled by a cross member.
The left and right gussets are reinforced by connecting the gussets provided in the left and right wheel houses with cross members.

The invention according to claim 3 is characterized in that the cross member is coupled to the vehicle body floor.
By joining the cross member to the vehicle body floor, the strength of the vehicle body floor and the cross member are complemented each other.

In the invention according to claim 1, since the gusset for mutual reinforcement is attached to the vehicle body floor, the wheel house, and the damper support member, and the damper is integrally attached to the gusset and the damper support member, the force received on the vehicle body side from the damper can receive is dispersed, such as in the vehicle floor and Ho Lee Ruhausu. Thereby, the efficient rigidity improvement around a damper can be aimed at. As a result, there is an advantage that the weight of the vehicle body can be reduced.
In addition, the gusset is provided with a temporary fixing portion for temporarily fixing the protruding portion of the damper, and by providing a hook for the temporary fixing portion on the damper, when the damper is attached to the damper support member, the temporary fixing portion of the gusset is previously provided. The hook of the damper can be hung. Thereby, since the damper can be attached to the damper support member after the damper is temporarily supported by the gusset, the damper can be easily attached. As a result, there is an advantage that it is possible to improve the assembly property of the damper.

  In the invention according to claim 2, since the gussets provided in the left and right wheel houses are coupled by the cross member, the left and right gussets can be reinforced mutually. As a result, there is an advantage that the rigidity in the vehicle body width direction can be improved.

  In the invention which concerns on Claim 3, there exists an advantage that the intensity | strength of a vehicle body floor and a cross member can mutually be complemented by couple | bonding a cross member with a vehicle body floor.

The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a perspective view of a vehicle adopting the rear structure of the vehicle according to the present invention, wherein 10 is a vehicle, 11 is a vehicle body, 12 is a front wheel, 13 is a rear wheel as a wheel, 14 is a bonnet, 15 is a front grille, Reference numerals 16 and 16 denote left and right headlamps, 17 a front bumper, 18 a windshield, 19 a roof, 21 a front door, 22 a rear door, 23 a door mirror, and 24 a rear bumper. The rear structure 30 is a structure of a support portion of a damper 34 that supports the rear wheel 13 in a bufferable manner.

  FIG. 2 is a perspective view of the rear structure of the vehicle according to the present invention. The rear structure 30 of the vehicle body includes left and right floor frames 31, 31, an underframe 32 connecting these floor frames 31, 31, and these floors. The vehicle body floors 33 attached to the frames 31, 31 and the under frame 32, and the dampers 34, 34 (the front 34 is not shown) are supported by being provided on these vehicle body floors 33 and around the left and right floor frames 31, 31. Damper support members 35, 35 (the front 35 is not shown) and the rear wheel 13 by being provided outside the vehicle width of these damper support members 35, 35 and around the vehicle body floor 33 and the left and right floor frames 31, 31. , 13 (see FIG. 1), left and right wheel houses 36, 36, these wheel houses 36, 36, damper support members 35, 35, and the vehicle body The left and right gussets (reinforcing members) 37 and 37 (the front 37 is not shown) that reinforce the lower 33 and a cross member 38 that connects the gussets 37 and 37 and supports the vehicle floor 33 To do.

  The damper support member 35 is a member that supports and attaches to the damper 34, and includes a through hole 43 through which the protrusion 72 as an upper portion of the damper 34 passes, and a hole 44 through which the bolts (screw parts) 74 and 74 of the damper 34 pass. , 44.

3 is a cross-sectional view taken along line 3-3 in FIG. 2, in which wheel houses 36 and 36 are disposed on the left and right of the vehicle body floor 33, and dampers 34 and 34 are disposed on the inner sides of the wheel houses 36 and 36, respectively. The wheel houses 36 and 36 and the vehicle body floor 33 are reinforced by left and right gussets 37 and 37, respectively, and the gussets 37 and 37 are connected by a cross member 38.
The wheel house 36 includes an outer member 45 that covers the outside of the rear wheel (wheel) 13, an inner member 46 that covers the inside of the rear wheel 13, and a reinforcing plate 47 that is coupled to the gusset 37.

  It can be said that the rear structure 30 of the vehicle is formed by connecting the gussets 37, 37 provided on the left and right wheel houses 36, 36 with a cross member 38, and the gussets 37, 37 provided on the left and right wheel houses 36, 36 are connected to each other. Are coupled by the cross member 38 so that the left and right gussets 37 can be reinforced. As a result, the rigidity of the vehicle body 11 (see FIG. 1) in the vehicle width direction can be improved.

  Further, the rear structure 30 of the vehicle has the cross member 38 coupled to the vehicle body floor 33. By coupling the cross member 38 to the vehicle body floor 33, the strength of the vehicle body floor 33 and the cross member 38 can be complemented with each other.

  FIG. 4 is a perspective view of the gusset of the rear structure of the vehicle according to the present invention, and the gusset 37 is a substantially tunnel-shaped member in cross-section and is supported by a wheel house 36 (see FIG. 3). , 53, vehicle body floor mounting portions 54 and 55 to be mounted on the vehicle body floor 33, cross member connecting portions 56 to 58 to be connected to the cross member 38, and the damper support member 35 to support the damper 34 (see FIG. 3). It is a member provided with the support parts 61 and 62 to perform, and the temporary fixing part 63 which temporarily fixes the upper end support part 68 of the damper 34. As shown in FIG.

  FIG. 5 is a perspective view showing the relationship between the gusset and the damper of the rear structure of the vehicle according to the present invention. A damper (shock absorber) 34 is slidably attached to a cylinder 65 filled with oil (not shown). An upper end support portion 68 that supports the rod 66 and supports the upper end of the coil spring 67; and a lower end support portion (not shown) that supports the cylinder 65 and supports the lower end of the coil spring 67. It is a member.

  The upper end support portion 68 includes a base member 71, a protrusion 72 formed at the center of the base member 71, a hook portion 73 that is formed on the protrusion 72 and is hooked on the temporary fixing portion 63 of the gusset 37, and a damper support It consists of a member (see FIG. 2) and bolts 74, 74 that are fastened together with the gusset 37. Reference numerals 75 and 75 denote nuts screwed into the bolts 74 and 74.

  6 is a perspective view showing the left side of the rear structure of the vehicle according to the present invention. The rear structure 30 of the vehicle has left and right floor frames 31, 31 (one 31 is not shown) and a vehicle body floor 33 (see FIG. 2). ) And left and right wheel houses 36 and 36 (one of which is not shown) covering the rear wheels (wheels) 13 and 13 (see FIG. 3) are provided on the vehicle body floor 33, and in the vicinity of these wheel houses 36 and 36. In the rear structure of the vehicle provided with damper support members 35 and 35 (one 35 is not shown) for supporting dampers 34 and 34 (see FIG. 5), the vehicle body floor 33, wheel house 36 and damper support member 35 It can be said that a gusset 37 for reinforcing each other is attached, and the damper 34 is integrally attached to the gusset 37 and the damper support member 35.

For example, if it is possible to efficiently improve the rigidity around the damper without increasing the weight of the vehicle body, it is preferable because the weight of the vehicle body can be reduced.
Therefore, a gusset 37 for mutual reinforcement is attached to the vehicle body floor 33 (see FIG. 2), the wheel house 36, and the damper support member 35, and the damper 34 (see FIG. 5) is integrated with the gusset 37 and the damper support member 35. Installed.

That is, a gusset 37 for reinforcing each other is attached to the vehicle body floor 33 (see FIG. 2), the wheel house 36, and the damper support member 35, and the damper 34 (see FIG. 5) is integrated with the gusset 37 and the damper support member 35. it is mounting, it can be dispersed force received from the damper 34 to the vehicle body 11 (see FIG. 1) side such as the vehicle floor 33 Yaho Lee Ruhausu 36. Thereby, the efficient rigidity improvement around the damper 34 (damper support member 35) can be aimed at.

  7 is a cross-sectional view taken along the line 7-7 in FIG. 6. The rear structure 30 of the vehicle has a vehicle body floor 33 attached to left and right floor frames 31 (one 31 is not shown), and a rear wheel ( Wheels 13 and 13 (see FIG. 3) are provided with left and right wheel houses 36 and 36 (one 36 is not shown), and dampers 34 and 34 (one 34 is not shown) in the vicinity of these wheel houses 36 and 36. In the rear structure of the vehicle provided with damper support members 35, 35 (one 35 is not shown) for supporting the), a gusset 37 for reinforcing the vehicle body floor 33, the wheel house 36 and the damper support member 35 is attached. The gusset 37 is provided with a temporary fixing portion 63 for temporarily fixing the protruding portion (upper portion) 72 of the damper 34, and a hook portion 73 for hanging the temporary fixing portion 63 on the damper 34. It can be said.

For example, when assembling the damper to the damper support member, it is preferable to consider the assemblability because the assembly work of the vehicle can be improved.
Therefore, a gusset 37 is attached to the vehicle body floor 33, the wheel house 36 and the damper support member 35, and a temporary fixing portion 63 for temporarily fixing the protrusion (upper part) 72 of the damper 34 is provided on the gusset 37. A hook portion 73 is provided on the damper 34 so as to hang on the temporary fixing portion 63.

  That is, the gusset 37 is provided with a temporary fixing portion 63 for temporarily fixing the protruding portion (upper portion) 72 of the damper 34, and the damper 34 is provided with a hooking portion 73 for hooking the temporary fixing portion 63. When attaching, the damper hooking portion 73 can be hung on the temporary fixing portion 63 of the gusset 37 in advance. Thereby, since the damper 34 can be attached to the damper support member 35 after the damper 34 is temporarily supported by the gusset 37, the damper 34 can be easily attached. That is, it is possible to improve the assembling property of the damper 34.

FIGS. 8A to 8C are operation explanatory views of the rear structure of the vehicle according to the present invention.
In (a), nuts 75 and 75 are prepared above the gusset 37 and the damper support member 35, and the damper 34 is prepared below the gusset 37 and the damper support member 35.

  In (b), the upper end support portion 68 (projection portion 72) of the damper 34 is inserted into the damper support member 35 as indicated by an arrow a1, and the bolts 74 and 74 of the damper 34 are attached to the damper support member 35 and the gusset 37 as indicated by a1. Plug in. At this time, the hook portion 73 of the damper 34 is hooked on the temporary fixing portion 63 of the gusset 37 as indicated by an arrow a2.

  In (c), nuts 75 and 75 are screwed into bolts 74 and 74 of the damper 34, and the damper 34 is integrally attached to the damper support member 35 and the gusset 37.

  FIG. 9 is a perspective view of a gusset of another embodiment of the rear structure of the vehicle according to the present invention. The gusset 77 is a substantially tunnel-shaped member in cross-section and is supported by a wheel house 36 (see FIG. 3). House attachment portions 81 to 83, vehicle body floor attachment portions 84 and 85 attached to the vehicle body floor 33, a cross member connection portion 86 connected to the cross member 38, and a damper 34 integrally with the damper support member 35 (see FIG. 3). This is a member provided with support portions 91 and 92 that support the upper end, and an opening 93 as a temporary stop portion that temporarily fixes the upper end support portion 68 of the damper 34.

It can be said that the gusset 77 is an opening 93 opened in the gusset 77 as a temporary fixing portion for temporarily fixing the upper end support portion 68 (the hook portion 73) of the damper 34.
The temporary fixing portion for temporarily fixing the upper end support portion 68 of the damper 34 is the opening 93 opened in the gusset 77, whereby the shape of the gusset 77 can be simplified. As a result, the cost of the gusset 77 can be reduced.

In the rear structure 30 of the vehicle according to the present invention, as shown in FIG. 1, the vehicle is a four-wheeled vehicle, but the present invention is not limited to this, and the vehicle may be a three-wheeled vehicle.
As shown in FIG. 5, the rear structure 30 of the vehicle according to the present invention is provided with the plate-like temporary fixing portion 63 on the gusset 37 side and the hook portion 73 on the damper 34, but is not limited thereto. A protrusion for temporarily fixing the damper may be provided on the gusset side, and a hole for fitting the protrusion may be provided on the damper side.

  The rear structure of the vehicle according to the present invention is suitable for use in a vehicle (for example, a passenger car, a wagon car, or a minivan) that wants to secure a large luggage compartment.

1 is a perspective view of a vehicle employing a rear structure of a vehicle according to the present invention. 1 is a perspective view of a rear structure of a vehicle according to the present invention. FIG. 3 is a sectional view taken along line 3-3 in FIG. 2. It is a perspective view of the gusset of the rear part structure of the vehicle concerning the present invention. It is a perspective view which shows the relationship between the gusset and damper of the rear part structure of the vehicle which concerns on this invention. It is a perspective view which shows the left side of the rear part structure of the vehicle which concerns on this invention. FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. 6. It is operation | movement explanatory drawing of the rear part structure of the vehicle which concerns on this invention. It is a perspective view of the rear part structure of the vehicle of another Example which concerns on this invention. It is a figure explaining the conventional basic composition.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Vehicle, 11 ... Vehicle body, 13 ... Wheel (rear wheel), 30 ... Rear structure of vehicle body, 31 ... Floor frame, 33 ... Vehicle body floor, 34 ... Damper, 35 ... Damper support member, 36 ... Wheel house, 37, 77 ... Gusset, 38 ... Cross member, 63 ... Temporary fastening part, 73 ... Hook part, 93 ... Temporary fastening part (opening).

Claims (3)

In the vehicle rear structure in which the vehicle body floor is attached to the left and right floor frames, the left and right wheel houses that cover the wheels are provided on the vehicle body floor, and the damper support members that support the dampers are provided in the vicinity of these wheel houses.
The rear structure of the vehicle is formed by attaching a gusset for mutual reinforcement to the vehicle body floor, the wheel house, and the damper support member, and integrally attaching an upper end support portion of the damper to the gusset and the damper support member.
The damper support member is a member that supports and attaches the damper, and includes a through hole that penetrates the upper portion of the damper, and a hole that penetrates the bolt of the damper.
The gusset is a substantially tunnel-shaped member that accommodates the upper portion of the damper, and includes a wheel house mounting portion that is detachably mounted on the wheel house, a vehicle body floor mounting portion that is detachably mounted on the vehicle floor, and these A support portion that supports the damper between the wheel house mounting portion and the vehicle body floor mounting portion and is detachably attached to the damper supporting member by a bolt of the damper, and the gusset inner surface so as to face the upper portion of the damper Provided with a temporary fixing portion for temporarily fixing the damper,
A rear structure of a vehicle, wherein a hook portion that hooks the temporary fixing portion is formed on the upper end support portion.   The rear structure of the vehicle according to claim 1, wherein gussets provided in the left and right wheel houses are joined by a cross member. Rear structure of the cross member, the to that請 Motomeko 2 wherein, characterized in that attached to the vehicle body floor vehicle.

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