JP3330465B2 - Car - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile having a spare tire carrier for storing spare tires below a floor panel.

[0002]

2. Description of the Related Art An automobile in which a spare tire can be stored under a floor panel by a spare tire carrier is well known in the art.
One example of a spare tire carrier according to Japanese Patent Application Laid-Open No. 6280 or Japanese Utility Model Application Laid-Open No. 58-129279 is shown. The spare tire carrier includes a chain, a chain wheel around which the chain is wound, and a drive shaft for rotating the chain. The tip of the rod for detaching and attaching the spare tire is engaged with the drive shaft of the spare tire carrier, and the spare tire is detached. By rotating the rod, the chain wheel is rotated via the drive shaft, and the spare tire held on the free end side of the chain is stored below the floor panel while the chain is wound around the chain wheel. By performing the reverse operation, the spare tire can be removed from the storage position below the floor panel.

[0003] A rod for attaching and detaching a spare tire is inserted from the rear side of the vehicle body into a hole formed in a rear bumper or a cross sill of the vehicle body located behind the spare tire carrier. In this manner, the tip of the spare tire detaching rod is engaged with the drive shaft of the spare tire carrier. At this time, when the spare tire detaching rod is inserted into the above-mentioned hole, it is guided smoothly. Preferably, the guide cylinder is fitted in a hole formed in the rear bumper or the cross sill so that the tip of the rod easily and accurately engages with the drive shaft of the spare tire carrier. When the spare tire detaching rod is engaged with the drive shaft, the distal end of the rod is guided by the internal through hole of the guide cylinder, and the distal end is easily and correctly engaged with the drive shaft. In such a configuration, the rear bumper or the cross sill constitutes a mounting member for mounting the guide tube, and a hole formed in the mounting member forms a mounting hole for mounting the guide tube.

[0004] If the guide tube is provided as described above, the tip of the rod for attaching and detaching the spare tire can be easily engaged with the drive shaft. In addition, the guide cylinder must be fixed to the mounting member with screws, and a large amount of labor is required for the fixing operation. Moreover, if screws are used to fix the guide cylinder, the number of parts in the car increases accordingly,
The disadvantage of rising costs is inevitable.

Further, if the guide tube is provided, the number of parts naturally increases, so that not only the man-hour for the mounting work increases, but also the cost of the automobile increases with the increase in the number of parts due to the guide tube itself. I can't escape the fault.

[0006]

SUMMARY OF THE INVENTION The present invention has been made on the basis of the above-described novel recognition, and a first object of the present invention is to make it possible to mount a guide cylinder very simply without using a fixing member such as a screw. An object of the present invention is to provide an automobile that can be attached to an attachment member. A second object of the present invention is to provide an automobile capable of preventing an increase in the number of parts due to provision of a guide tube.

[0007]

According to the present invention, there is provided the above-described first embodiment.
In order to achieve the above object, a spare tire carrier having a chain, a chain wheel around which the chain is wound, and a drive shaft for rotating the chain wheel is provided below a floor panel of a vehicle body, and a tip end of a spare tire detaching rod is provided. The spare wheel is held on the free end side of the chain while rotating the chain wheel through the drive shaft by rotating the chain wheel through the drive shaft by engaging with the drive shaft and rotating the rod for attaching and detaching the spare tire. In a motor vehicle in which tires are stored below a floor panel, a mounting member located rearward of the spare tire carrier and a vehicle body rear side portion and a vehicle body front side portion are provided with the spare tire carrier from the rear side of the vehicle body. Mounting holes facing the drive shaft are formed respectively, and the tip of the rod From the rear of the vehicle body side is guided to the drive shaft,
A guide cylinder having an internal through-hole for engaging with the drive shaft is inserted and fitted into the both mounting holes, and the guide cylinder has a radially projecting projection formed on an outer peripheral surface thereof. At least one of the two mounting holes has a first hole set to a size that allows passage of the protrusion protruding from the guide tube when the guide tube is inserted into the guide tube. And a second hole communicating with the first hole and having a size set to allow fitting of the guide cylinder and prohibit passage of the protrusion. We propose a featured car.

According to another aspect of the present invention, a spare tire carrier having a chain, a chain wheel around which the chain is wound, and a drive shaft for rotating the chain wheel is provided below a floor panel of a vehicle body to achieve a second object. By engaging the tip of the spare tire detaching rod with the drive shaft and rotating the spare tire detaching rod, the chain wheel is rotated via the drive shaft and the chain is wound around the chain wheel. Meanwhile, in a car in which the spare tire held on the free end side of the chain is stored below the floor panel,
It is fitted in a mounting hole of a mounting member located behind the spare tire carrier, and guides a tip of a spare tire detaching rod from the rear side of the vehicle body to the drive shaft to be engaged with the drive shaft. And a guide cylinder having an internal through hole for the vehicle, wherein the guide cylinder is formed integrally with a rear bumper cover covering at least a part of the rear bumper.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a side sectional view showing a lower portion of a rear portion of an automobile having a spare tire carrier and a back door, and an arrow X (see also FIGS. 2 and 3) indicates a forward direction of the automobile. “Front” or “rear” in this specification means before and after the forward direction X of the vehicle as a reference.

In FIG. 1, reference numeral 1 denotes a back door, and one end of the door 1 is hinged to a vehicle body 2. FIG. 2 shows the rear side of an automobile 10 having such a back door 1. In the automobile of this example, the upper end 1A of the back door 1 is hinged to the vehicle body 2, and the door 1 is shown in FIG. It is pivotally opened and closed between an open position and a closed position shown in FIG. 1 (see also FIG. 9).

Returning to FIG. 1, the lower part of the cabin 4 of the automobile is:
Partitioned by a floor panel 5 of the vehicle body 2, a spare tire carrier 6 is provided below the floor panel 5. In FIG. 3, reference numeral 7 denotes a chassis frame on which the vehicle body 2 is mounted.
Has a pair of side rails 8, 8 and a cross member 9 which is laterally fixed between the rails and extends in the width direction of the vehicle body. In the automobile of the present embodiment, the spare tire carrier 6 is mounted on the cross member 9.

In FIG. 1, a spare tire carrier 6
Is a chain 14, a chain wheel 12 on which a base end portion 14a of the chain is locked and the chain 14 is wound, and a drive shaft 13 for rotating the chain wheel.
And the chain wheel 12 is fixed to a support shaft 31 rotatably supported by a bracket 30 fixed to the lower surface of the cross member 9 constituting the chassis frame 7. The support shaft 31 is a drive shaft 13 for rotating the chain wheel.
And driven by the rotation of the drive shaft 13. Therefore, using the spare tire attaching / detaching rod 3 shown in FIG.
When the spare tire attaching / detaching rod 3 is rotated, the drive shaft 13 rotates, and the chain wheel 12 rotates via the drive shaft 13 and the support shaft 31.

When the chain wheel 12 rotates, the chain 14 is wound around the chain wheel 12 and, as shown in FIG. 3, a spare tire 15 held on a holding member 32 attached to a free end of the chain 14.
Is lifted. In this way, the spare tire 15 held on the free end side of the chain 14 is stored below the floor panel 5 while the chain 14 is wound around the chain wheel 12. By the reverse operation, the spare tire 15 can be lowered, the tire 15 can be removed from the chain 14, and the spare tire 15 can be used.

As shown in FIG. 1, on the lower surface of the rear end of the floor panel 5, a cross sill 33 for reinforcing the vehicle body located rearward of the spare tire carrier 6 and extending in the width direction of the vehicle body 2. Is fixed. In this example, the cross sill 33 is composed of an outer panel 16 located on the rear side of the vehicle body 2 and an inner panel 17 located on the vehicle front side of the outer panel 16 and facing the panel 16. , 17 are fixed to each other by spot welding. or,
The upper flange of each panel 16 and 17 is the floor panel 5
Is spot-welded to the lower surface of the.

The outer panel 16 and the inner panel 17 of the cross sill 33 are provided with concentric mounting holes 21, 22 facing the drive shaft 13 of the spare tire carrier 6 from the rear side of the vehicle body 2.
Are formed respectively, and these mounting holes 21 and 22 are provided with:
A guide tube 23 extending in the insertion direction of the spare tire attaching / detaching rod 3, that is, substantially in the front-back direction of the vehicle body 2, is inserted and fitted. Internal through hole 23A of such a guide cylinder 23
One of the rear side openings 23B faces the rear side of the vehicle body 2 and opens to the outside, and the other front side opening 23C faces the drive shaft 13 of the spare tire carrier 6 and opens.
Reference numeral 18 in FIG. 1 denotes a rear bumper located at the rear of the vehicle, and 19 denotes a rear bumper cover that covers the bumper 18.

Here, as shown in FIG.
Is opened, and the outer panel 16 of the cross sill 33 is
Is exposed outside the vehicle body together with the rear side opening 23 </ b> B of the guide cylinder 23. In this state, when the spare tire attaching / detaching rod 3 is inserted into the internal through hole 23A of the guide tube 23 from behind the vehicle body 2, the tip 3a of the rod 3 is guided by the internal through hole 23A of the guide tube 23, After exiting the cylinder 23, the distal end portion 3a engages with the drive shaft 13. That is, the rod tip 3a is guided toward the drive shaft 13 by the guide action of the internal through hole 23A of the guide cylinder 23, and engages with this shaft. After this engagement, if the rod 3 is rotated in the same manner as before, the chain 14
(FIG. 3) is wound up, and the spare tire 15 is stored below the floor panel 5. In addition, by performing the reverse operation, the spare tire 15 can be taken out from the storage position.

As described above, in this embodiment, the cross sill 33 constituting a part of the vehicle body 2 constitutes a guide cylinder mounting member located rearward of the spare tire carrier, and the outer panel 16 which is a vehicle rear side portion thereof. And an inner panel 17 which is a front portion of the vehicle body, and a mounting hole 2 facing the drive shaft 13 of the spare tire carrier 6 from the rear side of the vehicle body 3.
1 and 22 are respectively formed, and both mounting holes 21 and 22 are formed.
A guide tube 23 having an inner through-hole 23A is inserted into and fitted to the guide tube 23. The internal through-hole 23 </ b> A guides the distal end portion 3 a of the spare tire attaching / detaching rod 3 from the rear side of the vehicle body 2 to the drive shaft 13 and engages with the drive shaft 13.

As described above, if the guide cylinder 23 is provided, the distal end portion 3a of the spare tire removing rod 3 can be easily moved to the drive shaft 1
3, if the guide tube 23 is fixed to the cross sill 33 by a screw 24 as shown in FIG. 10, for example, at the time of manufacturing an automobile, the screw 24 needs to be tightened. Therefore, a large amount of labor is required for the fixing work. Moreover, such a screw 24
The use of a vehicle increases the number of parts of the vehicle and increases the cost.

Therefore, in the vehicle of this embodiment, as shown in FIGS. 1 and 4, an appropriate number of projections 25 projecting in the radial direction are integrally formed on the outer peripheral surface of the guide cylinder 23.
In addition, at least one of the two mounting holes 21 and 22 formed in the cross sill 33, in this example, the mounting hole 22 formed in the inner panel 17 is a first hole as shown in FIG. It is formed of a portion 22A and a second hole 22B communicating with the hole 22A. First hole 2
2A is set to a size that allows passage of the above-described protrusion 25 protruding from the guide tube 23 when the guide tube 23 is inserted into the guide tube 23, and the second hole portion 22B is
3 is set to a size that allows the fitting and prevents the protrusion 25 from passing through. The first and second holes 22A,
The communicating portion 27 between the first and second holes 22B has a width slightly smaller than the diameter of the second hole 22B.
The whole of 2A, 22B and the communicating part 27 between them are formed in a daruma hole shape.

In this embodiment, the mounting holes 21 formed in the outer panel 16 of the cross sill 33 are formed so as to allow the passage of the projection 25 projecting from the guide cylinder as shown in FIG. . At this time, the diameter D of the mounting hole 21 may be set to a size through which the protrusion 25 can pass, or the size of the diameter D of the circular portion of the mounting hole 21 may be set to be larger than the outer diameter of the guide cylinder 23. Alternatively, a notch 26 through which the protrusion 25 can pass may be formed in the mounting hole 21 as shown in FIG.

Mounting hole 22 formed in inner panel 17
Similarly to the first hole 22A, the diameter d of the hole 22A is set to a size that allows the projection 25 to pass therethrough as shown in FIG.
The diameter d of the circular portion of A may be set slightly larger than the outer diameter of the guide cylinder 23, and a cutout through which the protrusion 25 can pass may be formed in the hole 22A.

Here, when manufacturing the automobile, the guide cylinder 23
Is attached to the cross sill 33, first, the tip of the guide cylinder 23 is inserted from the rear side of the vehicle body into the mounting hole 21 formed in the outer panel 16 of the cross sill 33, and then the first of the mounting holes 22 formed in the inner panel 17 is inserted. Into the hole 22A. At this time, the protrusion 25 of the guide cylinder 23 passes through the mounting hole 21 and the first hole 22A without any trouble, and is located on the front side of the inner panel 17 as shown in FIG.
Next, the distal end side of the guide tube 23 is slid through the communication portion 27 to the second hole portion 22B as shown in FIG. At this time, the guide cylinder 23 is slightly elastically deformed by the external force received from the communication portion 27, but when the guide cylinder 23 has finished shifting to the second hole 22B, the guide cylinder 23 elastically returns to the original state. Thus, the guide cylinder 2
3 fits into the second hole portion 22B without play at the tip end, and FIG. 1 shows this state. When the guide cylinder 23 moves to the second hole 22B, the protrusion 25 cannot pass through the second hole 22B, and furthermore, the rear end side of the guide cylinder 23 Since the obstructing piece such as the abutting flange 28 (FIG. 1) is formed, the guide cylinder 23 does not fall out of the mounting holes 21 and 22 in the axial direction. Further, since the communication portion 27 between the first hole portion 22A and the second hole portion 22B is formed narrower than the diameter of the guide tube 23, the guide tube 23 is forcibly connected to the communication portion 27. Unless the guide cylinder 23 is pulled to the side, the guide cylinder 23 is moved from the second hole 22B to the first hole 22A.
It does not move towards. Thus, the guide tube 2
3 is fixedly held with respect to the cross sill 33 and can function to guide the spare tire attaching / detaching rod 3 without any trouble.

According to the above-described configuration, the guide cylinder 23 is inserted into the mounting holes 21 and 22 and then slightly slid in the width direction of the vehicle body, whereby the guide cylinder 23 is firmly held by the cross sill 33. It is not necessary to use screws or tighten them for fixing. In this way, the guide cylinder 23 can be attached to the cross sill 33 very easily, and since no screws are required, the cost of the automobile can be reduced.

In the above-described embodiment, the mounting hole 22 formed in the front side of the vehicle body of the cross sill 33 constituting the mounting member, that is, the mounting hole 22 formed in the inner panel 17 is formed by the first hole 22A.
And the second hole 22 </ b> B and the communication portion 27 therebetween. The mounting hole 21 formed in the vehicle body rear side portion of the mounting member, that is, the outer panel 16 is formed by the first and second holes described above. The guide tube 23 is attached to the cross sill 33 by the first and second holes and the communication portion, which are formed in the same manner as the portion and the communication portion therebetween, and then are fixedly held. You can also. In this case, the protrusion protruding from the guide cylinder 23 is provided at the rear side of the guide cylinder 23 as indicated by a reference numeral 25A in FIG. By inserting the guide cylinder 23 through the communication hole and then into the second hole, the projection 25
A engages with the front surface of the outer panel 16 and the guide tube 23 is prevented from coming off.

The outer panel 16 and the inner panel 1
7 are formed by the above-described first and second holes and a communicating portion therebetween, respectively, and these structures and the protrusions shown by solid lines and chain lines in FIG. In cooperation with the portions 25 and 25A, the guide cylinder 23
May be fixedly fixed to the cross sill 33.

FIGS. 7 and 8 show the second embodiment of the present invention, respectively.
FIG. 3 is a view similar to FIGS. 1 and 2 and showing the embodiment of FIG. The embodiment shown here is different from the first embodiment shown in FIGS. 1 to 6 only in the configuration of the guide cylinder 23 and the configuration of the mounting holes 21 and 22 in which the guide cylinder 23 is fitted. Is not different from the first embodiment. Therefore, description of the same components as those in the first embodiment will be omitted.

In FIG. 7, a mounting member consisting of a cross sill 33 fixed to the lower surface of the rear end of the floor panel 5 is located behind the spare tire carrier 6, which is configured exactly as in the first embodiment. A guide cylinder 23 is fitted into a mounting hole 21 formed in the outer panel 16, and an internal through-hole 23A extends in the insertion direction of the spare tire attaching / detaching rod 3 (FIG. 8). The inner panel 17 of the cross sill 33 also has holes 2 concentrically located with the mounting holes 21.
2 are formed. The mounting hole 21 does not need to have the first hole and the second hole as in the first embodiment.
What is necessary is just to be able to hold the guide cylinder 23 on the cross sill 33. The other hole may be, for example, a simple circular hole.

When the spare tire is stored under the floor panel 5 by the spare tire carrier 6, the back door 1 is opened and the spare tire attaching / detaching rod 3 is opened in the same manner as in the first embodiment. Tip 3a of
From the rear side of the vehicle body 2 to the internal through hole 23 of the guide cylinder 23.
A, the leading end 3a is guided to the drive shaft 13 of the spare tire carrier 6 through the hole 22 and is engaged with the drive shaft 13, and then the rod 3 is rotated to rotate the chain wheel 12, and the chain 14 is rotated. Wrap around the wheel 12. The reverse operation can remove the spare tire.

A feature of the second embodiment is that the guide cylinder 23 is formed integrally with a rear bumper cover 19 which covers at least a part of the rear bumper 18.
That is, a rear bumper 18 is provided at the rear of the vehicle, and at least a part of the bumper 18 is covered by a rear bumper cover 19 made of, for example, a resin molded product. In this embodiment, focusing on this point, the guide cylinder 23 is formed integrally with the rear bumper cover 19. According to such a configuration, the guide cylinder 23 is not configured as an independent member, but the rear bumper cover 1
9, the provision of the guide tube 23 does not increase the number of parts of the vehicle. Moreover,
When the rear bumper cover 19 is mounted on the rear bumper 18, the guide cylinder 23 can be fitted into the mounting hole 21 at the same time, so that the mounting operation can be extremely simplified. In addition, there is no need to fix the guide cylinder 23 to the cross sill 33 with screws or the like, and the assembling operation is extremely simple. In this way, the cost of the vehicle can be further reduced.

In the embodiment shown in FIG. 7, the guide tube 23 is fitted only into the mounting hole 21 formed in the outer panel 16 of the cross sill 33. However, the guide tube 23 is formed longer and is Can also be fitted to the mounting hole 22 of FIG.

In each of the embodiments described above, the mounting member for holding the guide cylinder 23 is formed by the cross sill 33. According to this configuration, the cross sill 33 is covered by the back door 1 with the door 1 closed. Therefore, when the door 1 is closed, the guide cylinder 23 is also hidden from the outside because the state is not visible from the outside. Therefore,
When the door 1 is closed, the inner through hole 2 of the guide cylinder 23 is closed.
The rod 3 for detaching and attaching the spare tire cannot be inserted into the spare tire 3A, thereby preventing the stored spare tire from being taken carelessly by a third party.
When the door 1 is opened, the rod 3 can be inserted into the guide cylinder 23 without any trouble. When the door is closed, the guide tube 23 is closed.
Is hidden from the outside, so that the appearance of the car can be improved.

When the cross sill 33 is used as the mounting member, various advantages as described above can be obtained. However, as shown in FIG. 9, the rear bumper 18 is used as the mounting member, and the same as in the first embodiment described above. Alternatively, a part of the rear bumper cover 19 that covers at least a part of the rear bumper 18 may be formed as a guide cylinder, and this may be fitted into a mounting hole formed in the rear bumper 18. .

Further, in each of the above-described embodiments, the bracket 30 of the spare tire carrier 6 is fixed to the chassis frame 7 as shown in FIGS. 1 and 7, but this bracket 30 is fixed to the lower surface of the floor panel 5. You can also.
As can be seen, the present invention can be applied to a monocoque type automobile without a chassis frame.

The present invention is also applicable to an automobile in which a plurality of spare tires, not just one, can be stored below the floor panel 5 by the spare tire carrier 6. The present invention is also applicable to an automobile hingedly connected to a vehicle body at one end of a side portion or a lower end portion.

[0036]

According to the first aspect of the present invention, the guide cylinder can be attached to the attachment member very easily without using a fixing member such as a screw, and the number of parts and cost of the automobile can be reduced. Can be achieved.

According to the second aspect of the present invention, it is possible to prevent an increase in the number of parts due to the provision of the guide tube, thereby improving the workability of assembling the guide tube and the cost of the automobile.

[Brief description of the drawings]

FIG. 1 is a side sectional view of an automobile according to an embodiment of the present invention.

FIG. 2 is an external perspective view showing a rear side of the automobile, in a state where a back door shown in FIG. 1 is opened.

FIG. 3 is a perspective view showing a configuration around a chassis frame arranged below the floor panel shown in FIG. 1 together with a stored spare tire.

FIG. 4 is a perspective view showing a state before a guide cylinder is inserted into a mounting hole.

FIG. 5 is a perspective view showing a state when a guide cylinder is inserted into a first hole.

FIG. 6 is a perspective view showing a state when a guide cylinder is slid into a second hole.

FIG. 7 is a sectional view similar to FIG. 1, showing a second embodiment.

FIG. 8 is a perspective view similar to FIG. 2, showing a second embodiment.

FIG. 9 is a perspective view showing an embodiment in which a mounting member is constituted by a rear bumper.

FIG. 10 is a perspective view showing a configuration example in which a guide cylinder is fixed to a cross sill by screws.

[Explanation of symbols]

 2 Body 3 Spare tire removal rod 3a Tip 5 Floor panel 6 Spare tire carrier 10 Automobile 12 Chain wheel 13 Drive shaft 14 Chain 15 Spare tire 18 Rear bumper 19 Rear bumper cover 21 Mounting hole 22 Mounting hole 22A First hole 22B 2 hole 23 guide tube 23A internal through-hole 25 protrusion 25A protrusion

Continuation of the front page (56) References Japanese Utility Model 58-129279 (JP, U) Japanese Utility Model 58-126280 (JP, U) Japanese Utility Model 7-6050 (JP, U) Japanese Utility Model 2-105081 (JP) , U) Shokai Sho 61-41086 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B62D 43/04 B60R 19/48

Claims (2)

(57) [Claims] 1. A spare tire carrier having a chain, a chain wheel around which the chain is wound, and a drive shaft for rotating the chain wheel is provided below a floor panel of a vehicle body, and drives a distal end of a spare tire attaching / detaching rod. By engaging the shaft and rotating the spare tire attaching / detaching rod, the chain wheel is rotated via the drive shaft, and the spare tire held on the free end side of the chain while the chain is wound around the chain wheel. In a vehicle that is stored below a floor panel, a drive shaft of the spare tire carrier is provided from a rear side of the vehicle body to a vehicle body rear side portion and a vehicle body front side portion of a mounting member located behind the spare tire carrier. Mounting holes for the spare tire are attached to the rear of the vehicle. A guide tube having an internal through hole for guiding the drive shaft from one side and engaging with the drive shaft is inserted and fitted into the two mounting holes, and the guide tube has a radius on its outer peripheral surface. A protrusion protruding in the direction is formed, and at least one of the two mounting holes has a size that allows passage of the protrusion protruding from the guide cylinder when the guide cylinder is inserted therein. A second hole that is in communication with the first hole that has been set and that has a size that allows the fitting of the guide cylinder and that prohibits passage of the protrusion; An automobile characterized by being formed from a hole. 2. A spare tire carrier having a chain, a chain wheel around which the chain is wound, and a drive shaft for rotating the chain wheel is provided below a floor panel of a vehicle body, and drives a tip of a rod for detaching and attaching a spare tire. By engaging the shaft and rotating the spare tire attaching / detaching rod, the chain wheel is rotated via the drive shaft, and the spare tire held on the free end side of the chain while the chain is wound around the chain wheel. In a vehicle that is stored below a floor panel, the front end of a rod for mounting and dismounting a spare tire is fitted into a mounting hole of a mounting member located rearward of the spare tire carrier, and A guide tube having an internal through hole for guiding to the drive shaft and engaging with the drive shaft, An automobile, wherein the guide cylinder is formed integrally with a rear bumper cover that covers at least a part of the rear bumper.