JPH042861Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a vehicle body, and particularly to a vehicle body suitable for use as a body supporting a vehicle suspension mechanism.

[Conventional technology]

Conventionally, in the rear body of a vehicle, as shown in FIGS. 6 to 8, rear floor side members 12 and rear floor cross members 14 are fixed to the lower surface of a rear floor panel 10 by welding.
Bracket 1 for attaching the control arm to the rear floor panel 10 and rear floor cross member 14
6, 18, 20, and 22, further fix the lower control arm 24 to the brackets 16 and 18, and then fix the lower control arm 24 to the brackets 16 and 18.
2 has a structure in which a lower control arm 26 is fixed. Also, rear floor panel 10
A bracket 30 for attaching the tank band 28 is fixed to the holder.

In this way, in conventional vehicle bodies,
Brackets 16, 18, 20, 2 are attached to the rear floor panel 10 and the rear floor cross member 14, respectively.
2 and the control arms 24 and 26 were attached thereto. Therefore, the lower control arms 24, 26 can be fixed to the rear floor panel 10 with a simple structure.

[Problem that the invention attempts to solve]

However, in conventional vehicle bodies, the rear floor suspension arm bracket is extended along the rear floor to the vertical wall of the rear floor, and the extended end is connected to the vertical wall of the rear floor, as described in Utility Model Application No. 61-118808. Brackets 16, 18, 2 are fixed to the wall to suppress rear floor vibration.
Since the lower control arms 24 and 22 are each made of a flat plate, when the lower control arms 24 and 26 vibrate, the lower control arms 24 and 2
6 is directly transmitted to the rear floor panel 10 via the brackets 16, 22, and
4 to the rear floor panel 10, and the vibration of the rear floor panel 10 caused noise in the vehicle interior. In particular, since the floor panel section 10A near the suspension input point is a single plate, the membrane vibration of the floor panel section 10A is remarkable, and this vibration has a very large effect on the noise inside the vehicle.

The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to provide a vehicle body that can increase the rigidity of the lower control arm attachment portion of the floor panel.

[Means for solving problems]

In order to achieve the above object, the present invention fixes a pair of rear floor side members spaced apart from each other to the lower surface of a rear floor panel, fixes both ends of a rear floor cross member approximately in the middle of the rear floor side members, and fixes both ends of the rear floor cross member to the lower surface of the rear floor panel. The cross member is fixed to the lower surface of the rear floor panel, and the member, which has a substantially U-shaped cross section, is attached to the rear floor cross member so that its opening is closed by the rear floor cross member. Each pair of members, which are fixed to both sides and have a substantially U-shaped cross section for mounting the lower control arm of the suspension, are arranged near both sides of the rear floor cross member on the lower surface of the rear floor panel.
The members are fixed to the rear floor cross member so that they face each other in the longitudinal direction of the vehicle, and are fixed to the lower surface of the rear floor panel so that the opening is closed by the rear floor panel, and one end of the member is fixed to the rear floor side member. It consists of a vehicle body that is fixed to the

[Effect]

Since the member and the floor panel form a closed cross section, the rigidity of the lower control arm attachment part of the floor panel can be increased, and even if the lower control arm vibrates, this vibration is prevented from being transmitted to the floor panel. Can be suppressed.

[Embodiments of the invention] Hereinafter, embodiments of the invention will be described in detail based on the drawings.

1 to 5 show the construction of a preferred embodiment of the present invention. 1 to 5, rear floor side members 12 and rear floor cross members 14 are provided on the lower surface of the rear floor panel 10.
is fixed by welding. A lower control arm mounting member 32 having a substantially U-shaped cross section is fixed to the lower surface of the rear floor cross member 14. And rear floor cross member 1
Lower control arm mounting members 34 and 36, each having a substantially U-shaped cross section, are fixed to the lower surface of the rear floor panel 10 on both sides.

The members 34 and 36 are fixed to the rear floor panel 10 by welding so that the openings thereof are closed by the rear floor panel. Due to this fixation, the member 34 and the rear floor panel 10
form a closed cross section, and the member 36 and the rear floor panel 10 form a closed cross section. The member 32 forms a closed cross section with the rear floor cross member 14 by being fixed to the rear floor cross member 14. Each member 32, 34, 36 has cutouts 32A, 32B, 34A, 34B, 36 for mounting the lower control arms 24, 26, respectively.
A, 36B are formed, and the lower control arm 2 is connected by bolts inserted into each notch.
4 and 26 are fixed to members 32, 34, and 36, respectively.

Thus, in this embodiment, the lower control arms 24, 26 mounting members 32, 3
Since the members 4 and 36 are each formed with a substantially U-shaped cross section and the members 34 and 36 are each fixed to the lower surface of the rear floor panel 10, the rigidity of the lower control arm mounting portion of the rear floor panel 10 can be increased. Furthermore, since the floor panel portion 10A near the suspension input point also has a closed cross-sectional structure, membrane vibration is suppressed. Therefore, even if the lower control arms 24 and 26 vibrate, the vibration causes the rear floor panel 10 to
The vibration of the rear floor panel 10 can be suppressed, and the noise level in the vehicle interior caused by the vibration of the rear floor panel 10 can be reduced.

In the above embodiment, the member 32 is configured to have a substantially U-shaped cross section, but even if the member 32 is a flat plate, the rear floor cross member 14 and the rear floor panel 10 have a closed cross section. As a result, the rigidity of the lower control arm mounting portion of the rear floor panel 10 can be increased compared to the conventional one.

[Effect of idea]

As explained above, according to the present invention, the member and the floor panel form a closed cross section to increase the rigidity of the lower control arm mounting portion of the floor panel. The lower control arm can be prevented from vibrating, and the noise level in the vehicle interior caused by the vibration of the lower control arm can be reduced. In addition, the member can also be used as a bracket for mounting the tank band, and the lower control arm mounting member, which conventionally consists of four parts, can be replaced with three parts.
Since it can be constructed from parts, the number of parts can be reduced. Furthermore, since the body rigidity of the lower control arm mounting portion is improved, changes in the alignment of the rear suspension are reduced, and the steering stability of the vehicle can be improved.

[Brief explanation of the drawing]

Figure 1 is a plan view showing one embodiment of the present invention;
The figure is a sectional view taken along the - line in Fig. 1, Fig. 3 is a sectional view taken along the - line in Fig. 1, Fig. 4 is a sectional view taken along the - line in Fig. 1, and Fig. 5 is a sectional view taken along the - line in Fig. 1. , FIG. 6 is a plan view of the conventional example, FIG. 7 is a sectional view taken along the - line in FIG. 6, and FIG. 8 is a - in FIG. 6.
It is a sectional view along a line. 10... Rear floor panel, 12... Rear floor side member, 14... Rear floor cross member, 24, 26... Lower arm, 32, 34, 3
6...Member.

Claims (1)

[Scope of utility model registration request] A pair of rear floor side members are fixed to the lower surface of the rear floor panel at a distance from each other, and both ends of a rear floor cross member are fixed approximately in the middle of the rear floor side members, and the rear floor cross member is fixed to the lower surface of the rear floor panel. For mounting the lower control arm of the suspension, a member with a substantially U-shaped cross section is fixed to both sides of the rear floor cross member so that its opening is closed by the rear floor cross member. For installation, members each having a substantially U-shaped cross section are arranged in pairs near both sides of the rear floor cross member on the lower surface of the rear floor panel, and each pair of members is attached to the vehicle via a member fixed to the rear floor cross member. are fixed to the lower surface of the rear floor panel so that they face each other in the front-rear direction, and the opening thereof is closed by the rear floor panel,
A vehicle body characterized in that one end of the member is fixed to a rear floor side member.