JP3126425B2 - Automobile tire guidance device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guide device which can be mounted on a tire of an automobile running on a road as required and can run on a railroad rail.

[0002]

2. Description of the Related Art It has long been desired to make a motor vehicle run on a rail by its own power for emergency construction of railways, and a known example thereof is Japanese Utility Model Application Laid-Open No. Sho 61-205804. A track ring that is guided by rails and rolls is provided at the front and rear portions of the vehicle, and can be moved up and down by a hydraulic device. When traveling on the rail, the front race is lowered and placed on the rail, the front tires are lifted, and the vehicle is driven only by the rear tires. The rear race is also lowered to contact the rails, but the vehicle weight is given to the rear tires, and the rear race only performs the guiding function.

[0003] This known example is a modified vehicle in which the front and rear races and the elevating mechanism thereof are incorporated in a chassis. Requires considerable modification regardless of frequency of use. Each time a modified car is manufactured, it is troublesome to submit a notification of the modified car to the competent authority and receive permission. Further, the above-mentioned known example cannot be used for a front wheel drive vehicle. This is because only the front wheels having no ground resistance are driven. The weight of the driving device is added to the vehicle weight, and the running performance is greatly reduced.

[0004]

A device is used in which a pair of left and right frames that can be fitted into the lower part of an automobile tire are integrated with a connecting member. Rails that can roll along the rails are provided before and after the frame. That is, the frame restricts the traveling direction of the tire in the rail direction, but follows the forward and backward movement of the raceway without difficulty. For this purpose, a passive wheel and an auxiliary wheel are provided on the frame body, the former is advanced with the tire by the former, and the forward direction of the tire is restricted by the latter.

The present apparatus is designed so that it can be disassembled into a shape that is convenient for transportation and that can be easily disassembled and assembled. If necessary, it is loaded on a construction vehicle and run on the road, assembled locally and mounted on tires on rails.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. The main body 1 is formed by connecting two rectangular plates 2, 2 capable of holding a lower portion of a tire T by shafts 3, 3 at both ends. The connecting member 4 is obtained by appropriately reinforcing two square pipes connecting the inner surfaces of the left and right frames facing each other, and the frame is provided with a receiving portion 1a into which an end of the square pipe can be inserted. Has been made easier. The bearing rings 5 are rotatably supported in correspondence with the shafts 3 of the left and right frames, respectively.

The passive wheel 6 is also supported by the frame, and its axis is located slightly below the center of the tire at the front and rear upper portions of the frame, and the frame is advanced while being pressed and rotated by the advance of the tire. It has become. However, for convenience of assembly and disassembly or handling, the structure is as shown in FIGS. That is, in FIG. 3, the pair of support plates 7, 7 are connected by the shaft 8, and the passive wheel 6 is supported by the shaft 8. The support plate 7 is provided with a notch 7a at the lower portion, which engages with a protruding shaft 1b provided on the inner surface of the frame. On the opposite side of the support plate, a stopper shaft 9 is inserted into a notch 1c provided in the frame to support it. By attaching and detaching the stopper shaft, the passive wheel 6 can be easily assembled or removed from the frame.

FIG. 4 shows another embodiment of the passive wheel 6. The passive wheel 6 is rotatably supported at one end of the support plates 11 and 11.
The other end of the support plate 11 is pivotally supported by the support shaft 12 so as to be rotatable with respect to the frame 1 (2).
Fixed by. By removing the bolt 13, the passive wheel 6 is configured to fall outward at the center of the support shaft 12. In this way, when the construction vehicle is lifted and the present apparatus is mounted, the lifting height can be minimized. The auxiliary wheel 10 is mounted on the inner plate of the frame body, and its mounting position is determined so that the auxiliary wheel 10 is in contact with the annular side surface of the tire and is driven to rotate in the cutting direction of the tire by contact with the tire. Therefore, the tire is pressed by the auxiliary wheel and rotates while correcting the direction toward the rail.

[0009]

[Function] This device is disassembled and loaded on a construction vehicle. The construction vehicle travels on a normal road, selects a suitable area, puts it on a rail, and attaches frames to the front and rear wheels. The simple jack device required at that time is according to another invention. Once the construction vehicle is fixed on the rails, if it is driven with the steering function free, it runs on the rails without any problems.

[0010]

[Effect] No vehicle modification is required. Normally, the vehicle travels on the road as a normal automobile, but when necessary, the portable member can be assembled and attached to the tire, so that the vehicle can run on the rail. It can be used for any of front-wheel drive, rear-wheel drive, and all-wheel drive.

[0011]

[Brief description of the drawings]

FIG. 1 is a front view of the present apparatus.

FIG. 2 is a plan view of the same part.

FIG. 3 is a perspective view of a passive wheel.

FIG. 4 is a perspective view showing another embodiment of the passive wheel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame body 2 Rectangular plate 3 Shaft 4 Connecting member 5 Track ring 6 Passive wheel 7 Support plate 8 Shaft 9 Stopper shaft 10 Auxiliary wheel 11 Support plate 12 Support shaft 13 Bolt 14 Stopper

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B60F 1/04

Claims (1)

(57) [Claims] 1. A front and rear wheel is used for a construction vehicle having a tire interval similar to a rail interval of a railway, and two left and right parallel members having front and rear ends connected by a shaft so as to hold lower portions of right and left tires. A pair of frame members, a connecting member for connecting the opposing surfaces inside the front and rear portions of the left and right frame members, and a raceway ring rotatably supported on the both end shafts of the frame member and guiding the two frame members along a rail,
A passive wheel that is rotatably supported by the frame before and after the tire and that can be pushed forward by the tire and can move forward with the frame, and a contact with the inner annular surfaces of both tires below the passive wheel to be rotatably supported on the inner surface of the frame in the direction of the cut line A guide device for an automobile tire, which is configured with an auxiliary wheel.