JPH072149A - Mounting structure for spare tire - Google Patents

Abstract

PURPOSE:To provide a mounting structure of a spare tire which is designed to improve the rearward visual field of an automobile, cause riding of a driver on the spare tire, and produce an excellent effect to prevent burglar of the spare tire. CONSTITUTION:A rear bumper 7 is formed in a manner to be divide into both sides. Meanwhile, the cylinder part 16 of an arm 9 for mounting a tire is attached to a chassis body 3a through a support bracket 10. The spare tire 4 arranged in a state to fall sideways is placed on the arm 9 for mounting a tire. The rear part of the spare tire 4 is fastened by means of a fastening bolt 20 from the interior R side of a car room in a state that the rear part thereof is arranged between the bumpers on both sides, and this way causes mounting of the spare tire 4 to a rear floor 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spare tire mounting structure to be stored in a lower portion of an automobile body.

[0002]

2. Description of the Related Art Conventionally, spare tires for exchanging tires are preliminarily provided in various automobiles, and such spare tire mounting structures are, for example, shown in FIGS.
There is something like. That is, FIG. 17 and FIG.
In the mounting structure shown in FIG. 8, the spare tire 51 is mounted on the rear door 53 via the mounting bracket 52. Therefore, the lower surface 52a of the mounting bracket 52 is bolted to the door outer panel 53a located below the window 54 of the rear door 53, and the welding bolt 55 is fixed to the upper surface 52b. Then, in order to mount the spare tire 51 on the rear door 53, the spare tire 51 is lifted in an upright state, and the welding bolts 55 are inserted and installed on the upper surface portion 52b of the mounting bracket 52. In this state, when the nut 56 is screwed into the welding bolt 55 and tightened, the spare tire 51 is attached to the mounting bracket 5.
It will be fixed to the rear door 53 via 2.

In the mounting structure shown in FIG. 19, the spare tire 51 is directly mounted on the lower surface of the rear floor 57. Therefore, the rear floor 57 is formed with a concave portion 57a formed by protruding a part thereof downward, and a welding bolt 58 is projectingly provided on the lower surface of the concave portion 57a.
Then, in order to mount the spare tire 51 on the rear floor 57, the spare tire 51 is lifted and installed on the lower surface of the recess 57a while inserting the welding bolt 58.
When the nut 59 is screwed into the welding bolt 58 and tightened in this state, the spare tire 51 is fixed to the rear floor 57 at the lower part of the vehicle body. In the figure, reference numeral 6
0 is a rear bumper.

[0004]

However, as shown in FIG.
Further, in the conventional mounting structure shown in FIG. 18, since the spare tire 51 having a relatively large diameter is mounted on the rear surface of the rear door 53 in a standing state, the spare tire 51 is mounted on the rear bumper 60 below the rear door 53. It is necessary to set the mounting position of the spare tire 51 above the rear door 53 so as not to hit it. Along with this, the spare tire 51
The upper part of the vehicle is arranged so as to project into the window 54 of the rear door 53, and as a result, the rear view of the automobile is obstructed. In addition, FIG.
In the conventional mounting structure shown in FIG. 19, since the nuts 56 and 59 for tightening the spare tire 51 are both exposed to the outside, the spare tire 51 can be easily removed from the rear door 53 and the rear floor 57. The spare tire 51 was highly likely to be stolen.

On the other hand, in the above-described conventional automobile, since the rear bumper 60 is made of a resin material, a person is required to clean the roof or take a load placed on the roof. When riding on the rear bumper 60, the resin-made rear bumper 60 and the like may be damaged or soiled, which is not preferable in maintaining the appearance of the vehicle body.

The present invention has been made in view of the above circumstances, and an object thereof is to improve the rear visibility of an automobile as compared with the prior art and to be able to ride on a spare tire. Another object of the present invention is to provide a spare tire mounting structure having an excellent effect of preventing theft of a spare tire.

[0007]

In order to solve the problems of the above-mentioned prior art, in the present invention, the rear bumper is divided into left and right sides, and the tire mounting arm is mounted on the lower part of the vehicle body. The spare tire placed sideways on the mounting arm is placed, and a part of the spare tire is placed between the left and right bumpers and tightened from the indoor side to attach the spare tire to the lower part of the vehicle body. There is.

[0008]

In the spare tire mounting structure according to the present invention, the rear bumper is divided into left and right sides, and the tire mounting arm is mounted on the lower portion of the vehicle body. Since the spare tire is mounted on the lower part of the vehicle body by placing it and tightening it from the indoor side with a part of the spare tire arranged between the left and right bumpers, the spare tire is mounted on the vehicle as in the conventional case. It does not hinder the rear view, can carry out various operations such as riding on the spare tire and removing the luggage on the roof, and the attached spare tire cannot be removed from the outside.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below based on the illustrated embodiments.

1 to 10 show an embodiment of a spare tire mounting structure according to the present invention. In the figure, 1
Is a rear portion of the vehicle body of the automobile, 2 is a rear floor provided on the rear portion 1 side of the vehicle body, 3 is a chassis on which the vehicle body is mounted, 4 is a spare tire stored in the lower portion of the vehicle body of the automobile, and 5 is a rear door disposed in the rear portion 1 of the vehicle A rear window 6 is provided on the upper portion of the rear door 5 to secure a rear view.
Further, a resin-made rear bumper 7 formed by being divided into left and right sides is disposed below the rear door 6, and the left and right side bumpers 7a and 7b are made of a metal support member 8 (see FIG. 3). Are attached to the rear part 1 of the vehicle body via the.

The left and right bumpers 7a and 7b are shown in FIG.
As shown in FIG. 4, the vehicle body is disposed at a constant interval in the vehicle width direction, and its front-rear length is attached to the vehicle body rear portion 1 and protrudes outward from the vehicle body by a predetermined length from the vehicle body rear portion 1. It is formed in a size that Further, the inner side surfaces of the left and right bumpers 7a, 7b are formed in a curved divided shape corresponding to the outer peripheral surface of the spare tire 4, as shown in FIG.
Can be arranged between the left and right bumpers 7a and 7b, and the spare tire 4 and the rear bumper 7 are integrated.

On the other hand, as shown in FIGS. 2 and 5, the chassis 3 is provided with a pair of left and right chassis bodies 3a and 3b extending in the longitudinal direction of the vehicle body.
Support brackets 10 and 11 for supporting a tire mounting arm 9 to be described later are fixed to the lower surface of b by welding or the like. As shown in FIGS. 6 and 7, the support brackets 10 and 11 are formed in a substantially U-shaped cross section with the opening side facing downward, and bolt holes 13 and 14 through which the bolts 12 are inserted are formed on the left and right side walls, respectively. It is provided facing each other. Therefore, the bolt 12 is formed longer than the space between the left and right side walls of the support brackets 10 and 11 so as to project from the one side wall, and the nut 15 is screwed into the tip portion thereof.

As shown in FIGS. 2 and 5, the tire mounting arm 9 is made of a single rod-shaped body and has a narrow flat surface U.
The front portion 9a side, which is bent and folded back in a letter shape, is bent obliquely upward, and the rear portion 9b side is formed in a horizontal dogleg shape. Further, the tire mounting arm 9 is formed by bending the front portion 9a side into a shape that is obliquely enlarged in the left-right direction, and further bending the front ends of the left and right front end portions 9c and 9d so as to be parallel to each other. The left and right front end portions 9c and 9d have cylindrical portions 1 extending in the horizontal direction.
6 and 17 are provided respectively, and the cylindrical portions 16 and 1
7 is formed in a size that can be arranged in the support brackets 10 and 11. In addition, inside the cylindrical portions 16 and 17,
A cylindrical spacer 18 that penetrates the bolt 12 is inserted and arranged.

Therefore, the front end portions 9c and 9d of the tire mounting arm 9 are cylindrical portions 16 and 17 in the support brackets 10 and 11 fixed to the pair of left and right chassis bodies 3a and 3b.
Are arranged, and the spacer 1 is placed inside these cylindrical portions 16 and 17.
8 is inserted and the bolt 12 is inserted in the spacer 18.
Respectively through the bolt holes 13 and 14, and by tightening the nut 15 at the tip of the bolt 12,
It is configured to be rotatably attached to the chassis 3 (see FIGS. 8 and 9).

On the other hand, the rear part 9 of the tire mounting arm 9
The b side shows the rear floor 2 when the spare tire 4 is installed.
Are arranged parallel to each other below, and a space S for housing the spare tire 4 is formed between the space S and the lower surface of the rear floor 2. Further, a mounting bracket 19 for mounting the spare tire 4 is provided on the rear portion 9b side of the tire mounting arm 9. As shown in FIG. 10, the mounting bracket 19 is formed in a U-shaped cross section with the opening side facing downward, and the lower portions of the left and right side walls of the mounting bracket 19 straddle the rear portion 9b of the tire mounting arm 9. Installed.

Then, on the upper surface of the mounting bracket 19,
Four mounting holes 21 into which the tightening bolts 20 are inserted are provided at front, rear, left, and right intervals, and welding nuts 22 that are screwed into the tightening bolts 20 are fixed to the rear surfaces of these mounting holes 21, respectively. There is. Moreover, only one welding bolt 23 for positioning is erected on the rear side of the upper surface of the mounting bracket 19. Therefore, the wheel hub 24 of the spare tire 4 is provided with through holes 25 and 26 through which the tightening bolt 20 and the welding bolt 23 are inserted, and the rear side of the attached spare tire 4 is substantially the rear surface of the rear bumper 7. It is set to be flush with each other.

On the rear side of the rear floor 2, four insertion holes 27 into which the tightening bolts 20 are inserted are formed in correspondence with the mounting holes 21 of the mounting bracket 19, whereby the tightening bolts 20 are inserted. It can be tightened from the passenger compartment R side. A cushion member 28 made of sponge (or rubber) that comes into contact with the spare tire 4 is adhered to the lower surface of the rear floor 2, and the lower end surface of the cushion member 28 is formed in a shape corresponding to the upper surface of the wheel hub 24. ing. 2, reference numeral 29 is a positioning nut screwed with the welding bolt 23. In FIG. 3, an arrow A indicates the rear side 1 of the vehicle body, and an arrow B in FIG. 4 indicates the front side of the vehicle body.

The spare tire 4 of this embodiment is used as the rear floor 2.
First, the tire mounting arm 9 is rotated downward to attach the tire to the rear floor 2 and the tire mounting arm 9.
Increase the space between and. Then, the spare tire 4 placed sideways is lifted to lift the through hole 26 of the wheel hub 24.
The spare tire 4 is placed on the upper surface of the mounting bracket 19 while the welding bolt 23 for positioning is inserted therethrough, and the positioning nut 29 is tightened on the welding bolt 23 for positioning. In this state, lift the tire mounting arm 9,
The wheel hub 24 of the spare tire 4 is the cushion member 2
Rotate upward until it contacts the lower end surface of 8. Then, tighten the tightening bolt 20 from the R side of the passenger compartment to the rear floor 2.
It is screwed into the welding nut 22 through the insertion hole 27 and the through hole 25 of the mounting bracket 19 and tightened. Then,
The rear portion of the spare tire 4 is substantially flush with the rear surface of the rear bumper 7, and is placed between the left and right bumpers 7a and 7b.
Attached to the lower surface of the (see FIGS. 1 and 2).

In the mounting structure of this embodiment, the tire mounting arm 9 is constructed so as to be vertically rotatable about the cylindrical portions 16 and 17 provided at the left and right front end portions 9c and 9d. The work of mounting the tire 4 is simplified, and the spare tire 4 can be mounted quickly and reliably. Also, the left and right bumpers 7 forming the rear bumper 7
The inner side surfaces of a and 7b are formed in a divided shape corresponding to the outer peripheral surface of the spare tire 4, and the spare tire 4 is substantially flush with the rear surface of the rear bumper 7, and the bumper 7 on both the left and right sides is formed.
Since it is installed in a state where it is placed between a and 7b,
The spare tire 4 is not disposed in the rear window 6 and hinders the rear view, and the appearance of the spare tire 4 and the rear bumper 7 is not impaired. You can get on the roof to wipe the roof or pick up luggage on the roof.

11 to 16 show another embodiment of a spare tire mounting structure according to the present invention. As shown in FIGS. 11 and 13, the rear bumper 37 in the figure is divided into left and right sides, and the left and right side bumpers 37 are separated.
The a and 37b are arranged at a predetermined interval so that the rear portion of the spare tire 4 which is laid down can be arranged between both bumpers. Further, the tire mounting arm 39 is of a fixed type, and the front portion 39a side and the rear portion 39b side thereof are bent and formed in the same manner as in the above-mentioned embodiment, and are cut horizontally as shown in FIGS. 14 and 15. Left and right front end 3
9c and 39d are attached to the lower surfaces of the chassis bodies 3a and 3b by welding.

Further, as shown in FIG. 16, the mounting bracket 49 has a U-shaped cross section with the opening side facing downward, and the lower ends 49a, 49 of the left and right side walls.
B is bent outward at a substantially right angle. Then, the mounting bracket 49 is mounted on the tire mounting arm 39 by inserting the mounting bracket 49 into the rear portion 39b of the tire mounting arm 39 and placing the rear portion 39b on the lower end portions 49a and 49b of the left and right side walls. Has been. Other configurations and operations are almost the same as those in the above embodiment. In addition, the procedure for installing the spare tire 4 is as follows.
It is the same as the above embodiment except that the rotating operation is performed.

The embodiments of the present invention have been described above.
The present invention is not limited to the embodiments described above, and various modifications and changes can be made based on the technical idea of the present invention.

For example, the tire mounting arms 9 and 39 in the above-described embodiments may be formed in other shapes as long as they do not hit peripheral members and can reliably support the spare tire 4. May be.

[0024]

As described above, in the spare tire mounting structure according to the present invention, the rear bumper is formed by being divided into the left and right sides, while the tire mounting arm is mounted on the lower portion of the vehicle body and the tire mounting arm is laid sideways. The spare tire is mounted on the lower part of the vehicle body by tightening it from the indoor side with a part of the spare tire placed between the left and right bumpers while mounting the spare tire. The rear view of the car is not obstructed, and a larger rear view can be secured as compared with the conventional one. Moreover, with the mounting structure of the present invention, it is possible to ride on the spare tire that is mounted when the roof of an automobile is wiped or the luggage on the roof is picked up. It is possible to prevent the rear bumper and the vehicle body from becoming dirty and scratched when riding on the vehicle, and to maintain a good appearance of the rear portion of the vehicle body.

Further, in the mounting structure of the present invention, the bolt for fixing the spare tire is tightened from the indoor side,
Since the spare tire cannot be easily removed from the outside, it has an excellent effect of preventing the theft of the spare tire as compared with the conventional mounting structure. In addition, when an impact force is applied to the rear part of the vehicle body from the outside, the spare tire can also absorb the impact load.

[Brief description of drawings]

FIG. 1 is a perspective view showing a rear portion of a vehicle body to which a spare tire is attached by applying an attachment structure according to an embodiment of the present invention.

FIG. 2 is a side view showing a spare tire mounted on a rear floor by the mounting structure of the above embodiment.

FIG. 3 is a perspective view showing a right side bumper and a support bracket thereof that form a rear bumper.

FIG. 4 is a plan view showing a rear portion of the spare tire arranged between the left and right bumpers.

FIG. 5 is a plan view of a spare tire supported by a tire mounting arm as viewed from below the vehicle body.

FIG. 6 is a perspective view showing a support bracket fixed to the chassis body.

FIG. 7 is a perspective view showing a front end portion of a tire mounting arm mounted to the chassis body via the support bracket.

FIG. 8 is a front view showing a front end portion of a tire mounting arm attached to the chassis body via the support bracket.

FIG. 9 is a cross-sectional view showing a front end portion of a tire mounting arm attached to a chassis body via the support bracket.

FIG. 10 is a perspective view showing a mounting bracket mounted on a rear portion of the tire mounting arm.

FIG. 11 is a perspective view showing a rear portion of a vehicle body of an automobile to which a spare tire is attached by applying an attachment structure according to another embodiment of the present invention.

FIG. 12 is a side view showing the spare tire mounted on the rear floor by the mounting structure of the above embodiment.

FIG. 13 is a plan view showing a rear portion of the spare tire arranged between the left and right bumpers.

FIG. 14 is a perspective view showing a front end portion of a tire mounting arm fixed to a chassis body.

FIG. 15 is a perspective view showing a front end portion of the tire mounting arm attached to the chassis body.

FIG. 16 is a perspective view showing a mounting bracket mounted on a rear portion of the tire mounting arm.

FIG. 17 is a perspective view showing a vehicle body rear portion of an automobile to which a spare tire is attached by applying a conventional attachment structure.

FIG. 18 is a side view showing a spare tire mounted on a rear door via a mounting bracket used in a conventional mounting structure.

FIG. 19 is a side view showing a spare tire attached to the lower portion of the vehicle body of an automobile by applying another conventional attachment structure.

[Explanation of symbols]

 1 Rear part of vehicle body 2 Rear floor 3 Chassis 3a, 3b Chassis body 4 Spare tire 7,37 Rear bumper 7a, 7b, 37a, 37b Left and right bumpers 9,39 Tire mounting arm 19,49 Mounting bracket 20 Tightening bolt 21 Mounting Hole 22 Welding nut 24 Wheel hub 25, 26 Through hole 27 Insertion hole R Vehicle interior S space

Claims (4)

[Claims] 1. A rear bumper is formed by being divided into left and right sides, a tire mounting arm is attached to a lower portion of a vehicle body, and a spare tire placed sideways is placed on the tire mounting arm, and a part of the spare tire. The spare tire mounting structure is characterized in that the spare tire is mounted on the lower portion of the vehicle body by tightening from the indoor side in a state where the spare tire is arranged between the left and right bumpers. 2. The spare tire is arranged substantially flush with the rear surface of the rear bumper.
Spare tire mounting structure described in. 3. The spare tire according to claim 1, wherein the tire mounting arm is configured to be rotatable in the vertical direction by rotatably mounting one end thereof to a lower portion of a vehicle body. Mounting structure. 4. The spare tire mounting structure according to claim 1, wherein inner surfaces of left and right bumpers forming the rear bumper are formed in a divided shape corresponding to an outer peripheral surface of the spare tire. .