JPS6323265Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a spare tire carrier for holding and fixing a spare tire of an automobile to the body.

(Conventional Technique) Conventionally, a spare tire carrier for holding and fixing a spare tire for an automobile on a body has a front plate 2 fixed to a body 1 and a rear plate facing the spare tire W, as shown in Fig. 1. A square pipe 4 is arranged between the plate 3 and these members 2, 3, 4 are connected together by welding,
A slide panel 7 having a tire holding bolt 5 and a handle flange 6 is provided between the front plate 2 and the rear plate 3 so as to be slidable in the horizontal direction, and the slide panel 7 is mounted on a shaft 8 by a spring 9. A structure is known in which the front plate 2 is always biased by the front plate 2 side.

However, in the case of a spare tire carrier having such a configuration, the front plate 2 and rear plate 3 must be assembled together by welding via the square pipe 4, which increases the number of welding steps and reduces the ease of assembly. Not only is it bad, but it also has a large number of parts and is expensive to manufacture. In particular, welded parts have a disadvantage in that their strength is low because of the large concentration of stress. Furthermore, because the location and structure of the spare tire carrier are not appropriate, it has been difficult for one person to attach the spare tire to the spare tire carrier.

(Purpose of the invention) The present invention was devised in view of this point, and its purpose is to improve assembly ease, reduce the number of parts, increase strength, and provide spare parts. To provide a spare tire carrier that allows one person to carry out the task of mounting a tire.

(Structure of the invention) Therefore, the feature of the invention is that an arm equipped with a tire holding bolt and a pipe for inserting a wrench is attached to the upper part of the carrier base fixed to the body so as to be rotatable in the vertical direction. A U-shaped bolt for holding the tire is provided at the bottom of the carrier base so as to be able to rotate in the vertical direction, and a wrench insertion hole is provided at a position corresponding to the wrench insertion pipe in the carrier base. In addition, a protruding surface that comes into contact with the wheel disc portion of the spare tire is integrally formed at a suitable location on the carrier base. With this configuration, the number of welding steps is reduced, the component structure is simplified and assembly is easier, and the strength is increased compared to conventional welded structures.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 2 and 3, 10 is a carrier base, and the carrier base 10 has a U-shaped bracket 10a connected to its upper part. base 10
A plurality of bolt insertion holes 12 for fixing the carrier base 10 to the body 11 of the automobile are bored at appropriate locations in the bracket 10a. An arm 14 is attached to a horizontal shaft 13 provided at the top of the carrier base 10 so as to be rotatable in the vertical direction, and this arm 14 is always pivoted upward by a spring 15 mounted on the shaft 13. Forced. 16 is a notch into which one end of the spring 15 is latched, and 17 is a latching hole into which the other end of the spring 15 is latched.

A tire holding bolt 18 is fixed to the upper end side of the arm 14. Further, a wrench insertion pipe 20 is fixedly provided on a tire hanging bracket 19 provided on the upper end side of the arm 14 in parallel with the tire holding bolt 18. 21 is a rust prevention cover attached to the bracket 19.

A U-shaped bolt 22 for holding a tire is provided at the lower part of the carrier base 10 so as to be rotatable in the vertical direction, and hangs down due to its own weight when a spare tire is not attached. Here, the U-shaped bolt 22 is a pair of L bolts.
After inserting the L-shaped bolts into the holes 23, 23, the proximal ends of the pair of L-shaped bolts are welded together.

A wrench insertion hole 24 is formed in the carrier base 10 at a position corresponding to the wrench insertion pipe 20. That is, when the arm 14 is rotated to the horizontal position shown by the imaginary line in FIG. 3, the grip side portion of the wheel wrench 25 can be inserted into the wrench insertion pipe 20 and the wrench insertion hole 24. It's summery. On both the left and right sides of the carrier base 10 in FIG. The shaded part in the figure is the part that comes into contact with the wheel disc part of the spare tire W. In addition, 27 is the axis 13
This is a locking pin.

Therefore, when installing the spare tire W on this spare tire carrier, push down the arm 14 in the direction A in FIG. By inserting the carrier base 1
The arm 14 is fixed relative to 0.

After fixing the arm 14, place the spare tire W on the cover 21 of the tire hanging bracket 19,
In this state, a nut (not shown) is temporarily tightened on the tire holding bolt 18, and the wheel wrench 25 is inserted and removed. After that, push up the U-shaped bolt 22 for holding the tire provided at the lower part of the carrier base 10 in the direction B in FIG. 3 and rotate it to the horizontal position shown by the imaginary line. The installation of the spare tire W is completed by inserting it into the wheel portion of the W and tightening a nut (not shown) on the U-shaped bolt 22, and then finally tightening the nut with the bolt 18 temporarily tightened. The installation work of the spare tire W can be carried out by one person by following the above procedure.

When the spare tire W is installed, the shaded part of the carrier base 10 (see Figure 2) comes into contact with the wheel disc part of the spare tire W, so vibrations of the spare tire W are minimized when driving, opening and closing doors, etc. It becomes something that is suppressed.

When the spare tire W is to be attached or detached from the spare tire carrier, it is only necessary to loosen the nuts threaded onto the bolts 18 and 22 using the wheel wrench 25 and pull out the spare tire W. When the spare tire W is pulled out, the arm 14 is automatically pushed up by the spring 15 to the rotating position shown in FIG. 3, and the U-shaped bolt 22 is rotated downward by its own weight to return to its hanging state.

(Effects of the invention) According to the spare tire carrier of the present invention configured as explained above, not only can the spare tire be installed and removed by one person, but also the carrier base has a protrusion that comes into contact with the wheel disk of the spare tire. Since the surface is integrally molded, welding man-hours are reduced, the component structure is simplified, and ease of assembly is improved.Furthermore, compared to conventional welded types, stress concentration is reduced and strength is increased. This has the effect of suppressing the vibration of the spare tire as much as possible during driving.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a conventional spare tire carrier, and FIG. 2 is a front view showing an embodiment of the present invention.
FIG. 3 is a sectional view taken along the - line in FIG. 2. 10...Carrier base, 11...Body,
14...Arm, 15...Spring, 18...
Bolt for tire retention, 20... Pipe for inserting wrench, 22... U-shaped bolt for tire retention, 24...
Wrench insertion hole, 26... protruding surface, W... spare tire.

Claims (1)

[Scope of utility model registration request] An arm with a tire holding bolt and a wrench insertion pipe is attached to the top of the carrier base, which is fixed to the car body, so that it can rotate vertically, and the arm is rotated upward by a spring. A U-shaped bolt for holding a tire is provided at the lower part of the carrier base so as to be rotatable in the vertical direction, and a wrench insertion hole is formed in the carrier base in correspondence with the wrench insertion pipe. A spare tire carrier characterized by an integrally molded protruding surface that comes into contact with the wheel disc of the spare tire.