JPH07222841A - Snow bicycle - Google Patents

Abstract

PURPOSE:To provide a bicycle which has an excellent running performance on snows, by turning a crawler stretched between front and rear wheels which are rotatably supported to a rear frame, and by attaching a steering skid to a front handle frame extended from a handle. CONSTITUTION:This snow bicycle has a main frame 3 having one end provided with a saddle 1, and the other end provided with a handle 2, a rear frame 4 extended rearward from the saddle 2 part of the main frame 3, and front and rear wheels 5, 6 journalled to the rear frame 4. The front wheel 5 is rotated by depressing pedals 7 so as to transmit a torque from the front wheel 5 to the rear wheel 6 through the intermediary of a chain 8 in order to turn a crawler 9 stretched between the front and rear wheels 5, 6. Further, a steering skid 11 is coupled to a front handle frame 10 extended from the handle 2, being suspended therefrom through the intermediary of a support frame 12. Further, a snow removing brush 14 is provided for removing snow sticking to the crawler 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a snow bicycle capable of traveling on snow like a general bicycle.

[0002]

2. Description of the Related Art Conventionally, there have been proposed snow bicycles or snow bicycles that can travel freely on snow like a bicycle. One example is disclosed in Japanese Utility Model Laid-Open No. 56-57169.

As shown in FIG. 2, this snow bike 21 is a snow traveling vehicle that travels on snow by a crawler traveling device 22 provided at the rear of the machine body 21. In this case, the handle shaft 24 at the front of the channel-shaped main beam 23 is used. A front ski 25 is attached to the front ski 25, a seat 26 is provided at the rear, a lower surface of the main beam body 23 is used as an attachment portion 27, and a transmission casing 28 integrally formed and fixed to the crawler traveling device 22 is mounted on the main beam body 23. The pivot support 29
Then, a power engine device 30 is attached to a part of the transmission casing 28, and the traveling device 22 can be driven with the engine as a power by a chain device housed in the transmission casing 28 and arranged for driving. Fitting, housing 22 'of the traveling device 22
The guide ski 31 is integrally extended to the front portion, and the vicinity 32 of the connecting portion of both members and the vicinity of the lower portion of the seat 26 of the main beam body 23 are freely connected by a buffer rod 33. ′ And a part of the main beam body 23 are freely connected by a connecting rod 34, the buffer rod 33 and the connecting rod 34 are arranged substantially in parallel, and the guide ski 31 is made of a bendable elastic material. It is the body. Another example is disclosed in Japanese Utility Model Laid-Open No. 58-119486.

As shown in FIG. 3, this snow-on-snow bicycle has a front support column 4 connected to a handle 42 at the front of a main body 41.
A steering ski 44 is attached to the lower end of the body 3, rear columns 45 and 46, which are spread equally on both sides, are provided in the rear portion of the main body 41, sliding skis 47 and 48 are attached to the lower end thereof, and a petal 49 is attached to the center of the main body 41. Is provided, and the rotational force of the petal gear 50 generated by stepping on the petal is transmitted to the small gear 53 of the gear strut 52 by the gear chain 51,
The snow kick wheels 55 and 56 attached to both ends of the rotary shaft 54 of the small gear 53 are rotated.

[0005]

However, the above-mentioned conventional snow bicycle has the following problems. (1) The snowbike disclosed in Japanese Utility Model Laid-Open No. 56-57169 uses an engine used for a motorcycle or the like as a power source for running a crawler, which is expensive to use for amusement. (2) Snow-on-snow bicycle disclosed in Japanese Utility Model Laid-Open No. 58-119486 A front steering ski is provided with two sliding skis on the left and right, and a snow kick wheel that is vertically moved by a lever is provided between them. However, the adjustment of the height of the snow kick wheel is
It is very difficult due to the thickness of the snow layer, the softness, and the balance of the left and right skis.

Further, since the skis and the snow kicking wheels are provided on both sides, the weight and the propulsion mechanism are excessively applied to the rear portion, and the smooth steering cannot be performed only by the front steering ski.

The present invention has been made to solve the above-mentioned problems of the prior art, and an object thereof is to provide a snow bicycle which is inexpensive and has good running performance.

[0008]

A snow bicycle according to the present invention has a front frame 5 and a rear frame 4 extending downward from a saddle 1 portion of a main frame 3 having a saddle 1 at one end and a handle 2 at the other end. Also, the rear wheel 6 is rotatably supported, the front wheel 5 is rotated by the pedal 7, and the rotational force is transmitted to the rear wheel 6 via the chain 8 so that the crawler 9 hung between the front wheel 5 and the rear wheel 6 is transmitted. It is configured to rotate and run,
A steering ski 11 is connected to a front handle frame 10 extending from the handle 2.

[0009]

[Function] By depressing the pedal in the direction of advancing the front wheels forward, a rotational force for advancing the front wheels is generated.
This rotational force is transmitted to the rear wheels via the chain, and the rear wheels also generate a rotational force to move forward.

For this reason, the crawler laid between the front wheels and the rear wheels rotates in the forward direction. Since the crawler kicks the snow and rotates, the propulsion force to move forward acts on the snow bicycle, causing it to move forward.

When the direction is changed, the steering wheel is turned in the direction of the change and the steering ski is directed to the course after the change. Since the weight of the driver is constantly applied to the crawlers, the kick force is sufficiently exerted and the crawlers are not disabled.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A snow bicycle according to an embodiment of the present invention will be described with reference to FIG. In this snow bicycle, a front frame 5 and a rear wheel 6 are rotatably supported by a rear frame 4 extending downward from a saddle 1 portion of a main frame 3 having a saddle 1 at one end and a handle 2 at the other end, and pedals are rotatably supported. The front wheel 5 is rotated by 7 and the rotational force is transmitted to the rear wheel 6 via the chain 8,
A crawler 9 laid between front wheels 5 and rear wheels 6 is configured to rotate and run, and a steering ski 11 is connected to a front handle frame 10 extending from the handle 2.

To explain this snow bicycle in detail, in order to stabilize the connection between the front handle frame 10 and the steering ski 11, a support frame 12 for connecting the front handle frame 10 and the steering ski 11 is provided. There is. The connection structure between the front handle frame 10 and the support frame 12 and the steering ski 11 employs a free coupling method using a buffer rod, and the shock due to the direction change is buffered at this portion.

A brake lever 13 is attached to the handle 2.
Is provided to enable speed adjustment and braking. Further, in order to remove the snow adhering to the crawler 9, a snow removing brush 14 which is always in contact with the crawler 9 is provided. In the figure, reference numeral 15 is a pedal gear for transmitting the rotational force by the chain 8, and 16 is a rear transmission gear.

[0015]

According to the present invention, it is possible to obtain a snow bicycle which is inexpensive and has good running performance.

[Brief description of drawings]

FIG. 1 is a perspective view of a snow bicycle according to an embodiment of the present invention.

FIG. 2 is a side view of a conventional snow bike.

FIG. 3 is a side view of a conventional snow ski bicycle.

[Explanation of symbols]

 1 Saddle 2 Handle 3 Main frame 4 Rear frame 5 Front wheel 6 Rear wheel 7 Pedal 8 Chain 9 Crawler 10 Front handle frame 11 Steering ski 12 Support frame 13 Brake lever 14 Snow removal brush 15 Pedal gear 16 Rear transmission gear

Claims (1)

[Claims] 1. A rear frame (4) extending downward from a saddle (1) portion of a main frame (3) having a saddle (1) at one end and a handle (2) at the other end, and a front wheel (5).
And the rear wheel (6) are rotatably supported, and the pedal (7)
The front wheel (5) is rotated by and the torque is applied to the chain (8).
Transmitted to the rear wheel (6) via the front wheel (5) and the rear wheel (6)
It is constructed such that the crawler (9) which is hung between the two is rotated to run, and the steering ski (11) is connected to the front handle frame (10) extended to the handle (2). Characteristic snow bicycle.