JPS60104991A - Stand apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

TECHNICAL FIELD OF THE INVENTION The present invention relates to a stand device for holding a bicycle stationary while simulating road driving conditions.

[Prior art]

As is well known, stands that hold a bicycle stationary and allow a person to ride and pedal the bicycle are widely used. Such stands are used by cyclists who train indoors and others who simply want to exercise.

Conventional pedal stands typically include two rotatably supported rollers that are interconnected to provide support for the rear wheel of the bicycle. This rear wheel is
As is well known, it serves as a driving wheel, and when you press the pedal to rotate the wheel, the roller also rotates, and the bicycle is held upright due to the gyroscopic effect.

However, conventional devices such as those described above cannot faithfully reproduce road driving conditions. The first reason is
Although the rear wheel is supported on one surface in actual road driving conditions, it is supported on two surfaces that contact two connected rollers. The second reason is that the front wheels remain stationary, contrary to the situation that may occur on the road.

Furthermore, the cyclist cannot move laterally or lean slightly from a vertical stance as one would normally do while riding a bicycle. Also, in an environment where the air is still, you cannot get the feeling of driving.

[Summary of the invention]

SUMMARY OF THE INVENTION It is therefore an object of the present invention to bring the bicycle to a standstill so that the user can use it in an environment that is mechanically advantageous and psychologically comfortable, simulating road riding conditions with high fidelity. Provide a stand device to hold it.

Another object of the invention is to provide a stand device which is extremely simple in construction, easy to adapt to bicycles of any size, and which guarantees low costs and maximum reliability.

These objects of the present invention are to simulate road driving conditions.
- A stand device for holding a bicycle stationary from forces, including a pair of support rollers carried on a floor-mounted structure and corresponding to each wheel of the bicycle, the rollers having a , mechanically connected to a fan operative to blow airflow over the front portion of the bicycle;
This is achieved by a stand device characterized in that it includes means for supporting the bicycle so that the bicycle can move laterally and tilt slightly from the vertical position.

Further features and advantages of the invention will be more easily understood on reading the detailed description of the preferred embodiments of the invention, which are illustrated in the accompanying drawings, to which the invention is not limited. do not have.

〔Example〕

Referring to the drawings, the bicycle 1 is supported with the front wheel 1a resting on rollers 2 and the rear wheel 1a resting on rows 23. The pair of four-22, 3 placed on the floor mounting structure 4 are connected to each other in a 7.4 manner by the drive chain 5 having a drive ratio of 1:1.
These rollers rotate at the same speed and have sufficient force and inertia to continue rotating for a considerable time even when the pedal is stopped.

Thus, the gyroscopic effect of the bicycle wheels is maintained and the bicycle can be held in place.

The rollers 3 can be fixed in different positions on the structure 4 by supports that are slidable along the slots) 3a, so that the stand can be adapted to suit bicycles of different sizes. The chain tensioning mechanism 5a applies tension to the chain 5 no matter what position the roller 3 is in.

The drive chain 6 runs from the shaft of the roller 2 to the end of the flexible cable 8).
Give exercise to 7. The cable 8 runs to transmit the motion to a fan supported on the upright posts 4a and 4b of the frame 4, the fan blades facing the front of the bicycle.

The bicycle support means, which make it possible to move the bicycle laterally and to tilt it to some extent, consist of a fork 10 with clamps 10a and 10b which are attached to the frame of the bicycle, the fork 10 having a small diameter so that it can be pivoted according to the arrow F1. It is connected to the rod 11. The rod 11 extends from the slider 12 so as to be movable in the F2 direction along a lateral slide support member 13.

The device according to the invention is able to simulate with great fidelity the conditions actually experienced while driving on the road. The two wheels of the bicycle both continue to move, each wheel resting on the same point as if traveling on a road, while the user is exposed to the wind, which increases in proportion to the speed at which the pedals are pressed. receive the flow.

The bicycle support, which allows the user to move laterally and lean, more accurately reproduces real road riding conditions, allowing users to practice effectively in developing appropriate psychological responses. can be diversified. This effect can be enhanced by providing a screen adapted to display images that relax the user.

The invention as described above may be modified without departing from the scope of the claims. Thus, for example, the fan can also be brought close to the base of the floor-mounted structure so that it can be driven via a simplified mechanical drive, in which case:
Its blowing side includes an air duct that directs the airflow toward the front of the bicycle. Furthermore, the fan may be driven by an electric motor with a rheostat in conjunction with a pedal, or by a hydraulic motor operated via a pump in conjunction with a pedal. Means for varying the rotational resistance of the rollers supporting the bicycle wheels may be provided to provide an operating condition to the device.

The floor-mounted structure can also be constructed from several types of modules assembled in any manner, and the device can be disassembled when not in use to reduce storage space.

In carrying out the invention, not only can all details be replaced by other technically equivalent elements, but the materials used, shapes and dimensions can be chosen as desired depending on the individual conditions.

[Brief explanation of the drawing]

The attached drawings are perspective views showing the device according to the present invention.
・Rear wheel, 2, 3...-Roller, 4...Floor mounting structure, 5.6φ...Fist chain, 8 [phase]...Flexible cable, 9...Fist fan, 1Q 6111
1 m fork, 1111111I11 Rondo, 12.
Φ...Slider, 13...Slide support member. Patent Applicant Germano Casini Francesco f7 Siloberto Preveteri Agent Masaki Yamakawa (and 2 others) Continued from page 1 0 Inventor Francesco Graitassi So.

Claims (9)

[Claims] (1) A stand device for holding a bicycle stationary while simulating road running conditions, comprising two support rollers carried on a floor-mounted structure and corresponding to each wheel of the bicycle, the rollers are mechanically connected to a fan operative to blow airflow between them and over the front portion of the bicycle, and further provide means for supporting the bicycle so that it can move laterally and tilt slightly from the vertical position. A stand device comprising: (2) The stand device according to claim 1, wherein the rollers are connected to each other and to the fan by a drive chain. (3) The fan is arranged on the floor mounting structure with its blades facing the front part of the bicycle, and is driven by a flexible cable. The stand device according to item 2. (4) The fan is provided close to the base of the floor-mounted structure so as to be driven via a simplified drive device, and the fan has air on its blowing side for directing airflow toward the front of the bicycle. The stand device according to claim 1, 2, or 3, characterized in that it has a duct. (5) The fan is driven by an electric motor having a rheostat that is linked to the movement of a pedal.
The pedal device according to item 4. (6) Claim 1, wherein the fan is linked to pedal motion by a hydraulic circuit.
The stand device according to item 2, 3, 4, or 5. (7) The rollers supporting the wheels of the bicycle are provided with means for changing rolling resistance against the movement of the wheels, and are given large inertia. , 2, 3, 4, 5, or 6. (8) The row 2 can be fixed to the floor mounting structure at an adjustable position, and is provided with means for applying tension to the drive chain. The stand device 1 according to any one of the above items, (9) The means for supporting said bicycle consists of a fork having a clamp for attachment to the rear part of the frame, said fork being connected for rotation about its longitudinal axis to a small rond and said Claim 1: extending from a slider engaged with a lateral slide support member carried on a mounting structure.
The stand device according to any one of Items 8 to 8. Claim 1 characterized in that a screen is provided for displaying an image to the user of the edge stand device.
The stand device according to any one of Items 9 to 9.