JP2500544Y2 - Spare tire storage device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a spare tire storage device for storing a spare tire of a vehicle in a vehicle body. More specifically, the present invention relates to a spare tire storage device suitable for a small bus equipped with a midship engine.

[Prior Art] Conventionally, in this type of spare tire storage device, as disclosed in, for example, Japanese Utility Model Laid-Open No. 59-170080, a chain drive type spare tire carrier is fixed to the bottom of the vehicle body. And when replacing a flat tire etc. with a spare tire, engage the tip of the crank handle with the perforated shaft of the spare tire carrier and reverse the crank handle to rewind the chain and put the spare tire on the ground. Lower it. After the spare tire is attached to the axle shaft, the flat tire is engaged with the engagement flange provided at the tip of the chain and the crank handle is normally rotated to wind the chain. When the chain is hoisted, the spare tire is raised and held in its hoisted position by the self-locking mechanism of the spare tire carrier.

In this spare tire storage device, a heavy tire can be easily replaced by a boost drive mechanism for boost driving the chain wheel.

However, the conventional spare tire storage device described above has a fastening force applied during hoisting when excessive vibration is applied on a bad road after the hoisting of the chain due to burrs generated on the surface of the chain wheel or chain during production. There was a case where the spare tire could not be firmly fixed because the chain gradually dropped and the chain was loosened.

Further, since the conventional spare tire storage device is provided at the bottom of the vehicle body, it is necessary to bend down when storing the tires, which causes a problem that work cannot be performed in a comfortable posture.

In order to solve these problems, a pillar having a horizontal arm is rotatably erected, a guide pulley is provided at the end of the horizontal arm and the upper end of the pillar, and the wire rope is passed through the pulley by the hoisting machine. Spare tire storage device for lifting and storing spare tires by using
989) has been proposed. In addition to the electric winch device for hoisting spare tires, a spare tire storage device equipped with a track rail, a movable carriage that can move on the track rail, and a carriage clamp device that fixes the movable carriage (actually 63 -109281) is also proposed.

According to these spare tire storage devices, the burden of bending down the operator's back is reduced by hoisting the spare tire by the hoisting machine or the electric winch device. In particular, in the latter storage device, the spare tire is fixed to a movable carriage that can be moved to the vicinity of the worker, thereby improving workability and fixing the spare tire.

[Problems to be solved by the invention] However, in the former storage device, in order to connect the wire rope to the spare tire stored in the underfloor luggage compartment, the operator bends his back to bring his head into the luggage compartment. Work had to be done and there were still problems to be improved. Similarly, in the latter storage device, the movable trolley moves the spare tire to the vicinity of the worker, but the movable trolley does not project to the outside of the vehicle, and the wire rope is attached to the spare tire as in the former storage device. In order to make the connection, the worker had to bend his back to bring his head into the luggage compartment, and there was still room for improvement.

An object of the present invention is to provide a spare tire storage device capable of taking out or storing a heavy spare tire with a little effort and in a comfortable posture.

Another object of the present invention is to provide a spare tire storage device capable of improving workability when taking out or storing a spare tire.

[Means for Solving the Problems] The configuration of the present invention for achieving the above object will be described with reference to FIGS. 1 to 3 corresponding to the embodiment.

The present invention comprises a swing arm 13 mounted on a top frame 12 of a room 11 so as to be horizontally swingable between a first position in a rear room 11 of a vehicle and a second position protruding rearward of the vehicle, Swing arm 13 in the first or second position
, A chain drive type spare tire carrier 21 provided at the tip of the swing arm 13 for raising and lowering the spare tire 27 by winding or unwinding the chain, and a lower frame of the room 11. A rail 32 arranged in the vehicle traveling direction and a spare tire 27
It is an improvement of a spare tire storage device provided with a slide tray 33 having a stopper 35 for removably fixing and a tray fixing member 39 for fixing the slide tray 33 to a rail 32.

The characteristic configuration is that the slide tray 33 is slidably held on the rail 32 between the storage position of the vehicle rear room 11 and the withdrawal position protruding rearward of the vehicle, and is drawn out from the storage position to the withdrawal position. The tray stopper 30 for stopping the pull-out operation of the slide tray 33 is provided on the rail 32, and the tray fixing tool 39 fixes the slide tray 33 at the storage position or the pull-out position to the rail 32.

[Operation] The swing arm 13 is horizontally swung to the second position projecting to the rear of the vehicle, the ground tire is lifted by the spare tire carrier 21, and then the slide tray 33 is pulled out to project from the vehicle body and lifted. The tray fixing device 39 is used to fix the drawn-out position below the tire. Slide tray 33 for the tires raised by spare tire carrier 21
Place it on the top and secure it with the stopper 35, then slide the tray.
33 and the swing arm 13 are stored in the vehicle rear room 11.

[Example] Next, an example of the present invention will be described in detail with reference to the drawings.

As shown in FIGS. 1 to 4, in this example, the vehicle 10 is a small bus equipped with a midship engine. On the top frame 12 of the rear room 11 of this vehicle, the swing arm
13 is the first in the vehicle rear room 11 which is orthogonal to the vehicle traveling direction
Is attached so as to be horizontally swingable between the position of and the second position protruding toward the rear of the vehicle (two-dot chain line in FIG. 2). That is, a storage frame 14 is fixed to the top frame 12 at right angles, and two support shafts 16 are erected on the frame 14. The base ends of two swing arms 13 are pivotally attached to the support shaft 16.
Reference numeral 13a is a reinforcing stay, 17 is a lock pin for fixing the swing arm 13 in the second position protruding toward the rear of the vehicle, 18 is a thumbscrew for fixing the swing arm 13 in the first position in the rear rear rooms 11, 19 Is the lid (FIG. 1) of the vehicle rear room 11.

A known chain drive type spare tire carrier 21 is provided at the tip of the arm 13. As shown in FIG. 5, the carrier 21 includes a housing 22, a chain wheel 23 rotatably mounted in the housing 22, and a wheel 23.
A shaft 24 that integrally supports the wheel 26, a chain 26 that is hung on the wheel 23, and an engagement flange 28 that is attached to one end of the chain 26 and that engages with a spare tire 27.

The tip of the swing arm 13 is pivotally attached to a support shaft 25 provided upright on the housing 22. In the spare tire carrier 21, when the crank handle 29 is engaged with the tip of the shaft 24 and rotated, the chain wheel 23 rotates by an unillustrated force increasing mechanism to wind or unwind the chain 26, and the spare tire 27
Is moved up and down, and at the time of winding, it is fastened in a wound state by a self-locking mechanism (not shown). The crank handle 29 is housed together with the lock pin 17 in a predetermined position (not shown) in the room 11 when not in use.

Further, a rail 32 is arranged on the lower frame 31 of the vehicle rear room 11 via a base plate 40 in the vehicle traveling direction. These rails 32 have slide trays 33 on the rear room 11 of the vehicle.
It is slidably held between the retracted position and the withdrawn position that protrudes to the rear of the vehicle. Reference numeral 30 is a tray stopper fixed to the rail 32 (FIG. 3), and 35 is a stopper for fixing the spare tire. The stopper 35 is adapted to fix the tire 27 by screwing a bolt 34 to a female screw (not shown) provided on the tray 33 and tightening a thumbscrew 36.

As shown in FIG. 6, contact the rear end of the rail 32 and the base 40.
The small wheel 37 is bolted to the bracket 50 that is fixed to
It is rotatably attached by 41 and nut 42. Further, as shown in FIG. 7, a small wheel 38 is rotatably attached to the front end of the tray 33 by a bolt 43 and a nut 44. The tray 33 is smoothly railed by the rotation of the small wheels 37 and 38.
It can be pulled out from the room 11 via 32, and the pulling-out operation is performed until the small wheel 38 provided on the tray 33 comes into contact with the tray stopper 30 provided on the rail 32.
This prevents the tray 33 from coming off the rail 32,
It can be stored in room 11 again.

As shown in FIGS. 8 and 9, the slide tray 33 is provided with locking holes 33a that match the locking holes 50a provided in the bracket 50 at the storage position. It is fixed to the bracket 50 by inserting the pin 39 into 50a and 33a. Further, as shown in FIGS. 10 and 11, the slide tray 33 is provided with a locking hole 50a at the drawn position.
Locking holes 33b corresponding to the above are provided, and the slide tray 33 is fixed to the bracket 50 by inserting the pins 39 into these locking holes 50a and 33b.

A method of using the spare tire storage device having such a configuration will be described.

First, when the spare tire 27 is newly stored, the thumbscrew 18 is removed and the swing arm 13 is projected to the rear of the vehicle 10 to the second position as shown by the chain double-dashed line in FIGS. Swing and fix with lock pin 17. The crank handle 29 is engaged with the tip of the shaft 24 of the spare tire carrier 21 to rotate it in the reverse direction, and the chain 26 is rewound. Prepared spare tire
The engagement flange 28 is engaged with 27, the handle 29 is normally rotated, and the chain 26 is wound up. When the spare tire 27 rises above the tray 33, the rotation of the handle 29 is stopped.

Next, the pin 39 is pulled out from the locking holes 50a and 33a, and the tray 33
Draw out to the full. The small wheel 38 hits the tray stopper 30 and the tray 33 stops at the pull-out position. Pin 39 locking hole
After inserting trays 50a and 33b to fix tray 33, handle
Reverse 29 and put the spare tire 27 on the tray 33.

Next, after removing the engagement flange 28 from the spare tire 27,
Shift the tire 27 to the center of the tray 33 and fix the bolt 34.
It passes through the center of the tire 35 and the tire 27 and is screwed into an internal thread (not shown) of the tray 33. By tightening the thumbscrew 36, the tire 27 can be firmly fixed to the tray 33. Pin 39
After the tray 33 is pulled out from the locking holes 50a and 33b and the tray 33 is stored in the room 11 via the rail 32, the pin 39 is locked in the locking holes 50a and 33a.
To fix the tray 33 to the bracket 50. Finally, the lock pin 17 is removed, the swing arm 13 is stored in the original storage frame 14, and the thumbscrew 18 is fixed to complete the storage operation.

The method of taking out the stored spare tire 27 is the reverse of the above-mentioned storing procedure.

Although the lock pin 17 and the thumbscrew 18 are shown as the arm fixing tool of the swing arm, and the locking holes 50a, 33a, 33b and the pin 39 are shown as the tray fixing tool of the slide tray, the above example is an example. Therefore, the arm fixture and the tray fixture of the present invention are not limited to these.

[Advantages of the Invention] As described above, according to the present invention, the tray stopper is provided on the rail, and the slide tray is provided so as to be able to project from the storage position to the rear of the vehicle. It does not require the operator to bend over and put his or her head inside the luggage compartment to carry out the work, and a heavy spare tire can be used with a little effort and in a comfortable posture. It can be retrieved or stored.

Also, since the tray stopper that stops the protruding operation of the slide tray is provided at the pull-out position, the slide tray does not come off from the rail, and if the slide tray is stopped by the tray stopper, the slide tray can be fixed to the rail with the tray fixing tool. The spare tire can be more safely and easily fixed on the slide tray. As a result, workability in taking out or storing the spare tire can be improved.

[Brief description of drawings]

FIG. 1 is a block diagram of a spare tire storage device according to an embodiment of the present invention. FIG. 2 is a plan view thereof. FIG. 3 is a side view thereof. Fig. 4 is its rear view. FIG. 5 is a block diagram of the spare tire carrier. FIG. 6 is a sectional view taken along line VI-VI in FIG. FIG. 7 is a sectional view taken along line VII-VII in FIG. FIG. 8 and FIG. 9 are perspective views of essential parts when the slide tray is stored. 10 and 11 are perspective views of relevant parts when the slide tray is pulled out. 10: Vehicle, 11: Vehicle rear room, 12: Top frame, 13: Swing arm, 17: Lock pin (arm fixing tool), 18: Thumb screw (arm fixing tool), 21: Spare tire carrier, 26:
Chain, 27: spare tire, 30: tray stopper, 31:
Lower frame, 32: Rail, 50: Bracket, 50a: Locking hole, 33: Slide tray, 33a, 33b: Locking hole, 35: Stopper,
39: Pin (tray fixture).

Claims (1)

(57) [Scope of utility model registration request] 1. A top frame (12) of the room (11) is horizontally swingable between a first position in a vehicle rear room (11) and a second position protruding rearward of the vehicle. A mounted swing arm (13), an arm fixture (17, 18) for fixing the swing arm (13) to the room (11) at the first position or the second position, and the swing arm A chain drive type spare tire carrier (21) provided at the tip of (13) for raising and lowering the spare tire (27) by hoisting or rewinding the chain, and a vehicle traveling direction on the lower frame (31) of the room (11). A rail (32) disposed on the rail (32), a slide tray (33) having a stopper (35) for detachably fixing the spare tire (27), and the slide tray (33) on the rail (32). Tray fixing tool (39) for fixing In the spare tire storage device provided, the slide tray (33) is slidably held by the rail (32) between a storage position of the vehicle rear room (11) and a withdrawal position protruding rearward of the vehicle, The rail (32) is provided with a tray stopper (30) for stopping the pulling-out operation of the slide tray (33) in a state of being pulled out from the storage position to the pulling-out position, and the tray fixture (39) is provided in the storage position. Alternatively, the spare tire storage device is characterized in that the slide tray (33) in the pulled-out position is fixed to the rail (32).