JPH0532283U - Bicycle with auxiliary power - Google Patents

Abstract

(57) [Abstract] [Purpose] To make it possible to obtain a sufficient amount of accumulated braking energy and to facilitate speed control during traveling by the accumulated energy. [Structure] An air compressor 11 to which rotation of wheels 3 is transmitted via an electromagnetic clutch 10 is provided. This air compressor 11
An air tank 14 for storing the air compressed by is provided, and this air tank 14 is connected to an air motor 12 for driving the wheels 3. An open / close valve 17 is provided between the air tank 14 and the air motor 12. The air tank 14 is composed of, for example, a part of the frame 1.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a bicycle with auxiliary power used for driving by storing energy when braking on a slope or the like.

[0002]

[Prior Art]

 Conventionally, various types of bicycles using a spring spring have been proposed as bicycles with auxiliary power that store braking energy during traveling on slopes and are used for driving during normal traveling.

[0003]

[Problems to be solved by the device]

 However, the mainspring spring has problems that it is difficult to obtain a sufficient amount of energy that can be stored, and that it is difficult to control the speed during traveling by the stored energy.

An object of the present invention is to provide a bicycle with an auxiliary power source, in which a sufficient amount of braking energy can be accumulated and the speed of which can be easily controlled by the accumulated energy during running.

[0005]

[Means for Solving the Problems]

 The bicycle with auxiliary power of this invention is provided with an air compressor to which rotation of wheels is transmitted through a clutch mechanism, an air tank for storing air compressed by the air compressor, and the air tank for driving wheels. It is connected to the air motor of. Provide an opening / closing valve in the air path between the air tank and the air motor. The air tank is composed of, for example, a frame.

[0006]

[Action]

 According to this configuration, by bringing the clutch mechanism into the connected state, the air compressor operates to obtain a braking force, and the braking energy is stored in the air tank as compressed air. Since braking energy is stored as compressed air, a large amount of energy can be stored in a small capacity air tank. The compressed air stored in the air tank can be used as auxiliary power for traveling by opening the open / close valve and driving the air motor. In addition, since it is driven by compressed air, speed control can be easily performed by providing an appropriate throttle valve.

[0007]

【Example】

 An embodiment of this invention will be described with reference to FIGS. In FIG. 2, front and rear wheels 2 and 3 are supported on a frame 1, and the rear wheel 3 is driven via a chain 5 by operating a pedal 4. As shown in FIG. 1, the axle 6 of the rear wheel 3 is supported by the bifurcated rear end 1a of the frame 1, and the sprocket 7 on which the chain 5 is mounted is fixed to the axle 6. 8 is a hub and 9 is a spoke.

The axle 6 projects from both sides of the bifurcated rear end 1a of the frame 1 to both sides, connects an air compressor (compressor) 11 to one of the projecting parts through an electromagnetic clutch 10, and connects to the other projecting part. The air motor 12 is connected. The air compressor 11 and the air motor 12 are attached to the frame 1, respectively.

Various types of air compressors can be used as the air compressor 11, but in this embodiment, a rotary positive displacement type having movable blades is used. The discharge port of the compressed air of the air compressor 11 is connected to the air tank 14 via the pipe 13.

The air tank 14 is formed as a hermetically sealed space in the frame 1, and as shown in FIG. 2, the large-diameter portion provided in the frame 1 constitutes a main air tank portion 14 a. The air tank 14 is provided with a safety valve for releasing excess pressure, a drain drain (neither is shown), or the like.

The air motor 12 is connected to the air tank 14 via an air passage 15 (FIG. 1) formed of piping, and a manual variable throttle valve 16 and an electromagnetic opening / closing valve 17 are interposed in the air passage 15. .. An output shaft (not shown) of the air motor 12 is connected to the axle 6 via a one-way clutch 18 so that rotation can be transmitted only in the motor driving direction.

The control system will be described. The operation panel 19 is provided on the handle 20 of FIG. 2, and is provided with a compressor on mode switch SW1, a compressor on switch SW2, and an air motor on switch SW3. As the switches SW1 to SW3, pusher-on and push-off type switches are used. The ON signal of the compressor ON switch SW2 is input as a clutch ON signal to the electromagnetic clutch 10, and the ON signal of the air motor ON switch SW3 is input as a valve open signal of the electromagnetic opening / closing valve 17 of the air motor 12.

A brake switch SW0 is provided on the brake lever 21 of the steering wheel 20, and an AND signal between the switch SW0 and the compressor on mode switch SW1 is generated by the AND means 22 to output a clutch on signal to the electromagnetic clutch 10. Is entered as. The brake lever 21 is a lever for operating a manual wire-type brake (not shown) or the like, and is linked to the switching of the compressor on-mode switch SW1 to the on-mode, and the wire-type brake is operated by the brake lever 21. Braking force switching means (not shown) for relaxing the braking force is provided.

The operation of the above configuration will be described. When the compressor ON switch SW2 is turned on during traveling on a downhill or the like, the electromagnetic clutch 10 is turned on, and the rotation of the rear wheel 3 is transmitted to the air compressor 11. Therefore, a braking force is obtained on the rear wheels 3, and compressed air generated by the operation of the air compressor 11 is stored in the air tank 14 in the frame 1.

When the compressor on mode switch SW1 is turned on, the electromagnetic clutch 10 is turned on when the brake lever 21 is operated. Therefore, the air compressor 11 operates to obtain the braking force, and the compressed air is stored in the air tank 14. As described above, when the compressor ON mode switch SW1 is turned on, the braking energy is stored in the air tank 14 as compressed air every time the brake operation is performed.

The compressed air stored in the air compressor 11 is used to drive the air motor 12 by opening the electromagnetic opening / closing valve 17 by turning on the air motor ON switch SW3, and the rear wheel 3 is driven by the air motor 12. To be done. The rotation torque of the air motor 12 can be adjusted by the throttle amount of the variable throttle valve 16. It is desirable that the variable throttle valve 16 be provided with an operating means at a position where it can be adjusted by the driver during traveling.

In this way, the bicycle with auxiliary power stores braking energy as air pressure when traveling on a slope or the like, and can be used as auxiliary power when traveling normally. In this case, since the braking energy is stored using the air pressure, a large amount of energy can be stored in the small capacity air tank 14. In addition, since the air pressure is used, unlike the conventional spring spring and the like, speed control during traveling by the air motor 12 can be easily performed. In addition, the air motor 12, the air compressor, etc. 11 can easily have a small capacity and a large output, so that the entire bicycle can be made compact.

In this embodiment, the air tank 14 is composed of the frame 1. Therefore, the air tank 14 can be made more compact by one layer, a dedicated air tank is not required, the number of parts can be reduced, and the appearance is simple. You can

The air tank 14 may be provided separately from the frame 1. Further, in the above embodiment, the rotation transmission between the rear wheel 3 and the air compressor 1 and the air motor 12 is configured to be performed from the axle 6, but the air compressor 1 and the air motor 12 are provided via the rim of the rear wheel 3. The rotation may be transmitted to and from. In that case, the clutch mechanism is composed of a mechanism for bringing the driven roller into contact with and separating from the rim. Further, the air compressor 1 and the air motor 12 may be provided for the front wheels 2, or one wheel may be provided with the air compressor and the other wheel may be provided with the air motor.

Furthermore, this bicycle with auxiliary power is not limited to a two-wheeled bicycle, but can be applied to various types of bicycles such as a three-wheeled bicycle for play and the like.

[0021]

[Effect of the device]

 The bicycle with auxiliary power of the present invention is provided with an air compressor in which the rotation of the wheels is transmitted via a clutch mechanism, stores compressed air in an air tank, and drives an air motor for driving the wheels. The braking energy at the time of time is stored as air pressure and can be used as auxiliary power during normal driving. In this case, since the braking energy is stored by utilizing the atmospheric pressure, a large amount of energy can be stored in the small capacity air tank. In addition, speed control can be easily performed due to the use of air pressure. Furthermore, air motors, air compressors, and the like, which have a small capacity and a large output, are easily obtained, so that the entire structure can be made compact.

In the case of the structure according to claim 2, since the air tank is composed of the frame, the structure can be made more compact, and the dedicated air tank is not required, the number of parts can be reduced, and the appearance is simple. be able to.

[Brief description of drawings]

FIG. 1 is an explanatory view in which a cutaway plan view of a rear wheel portion of a bicycle according to an embodiment of the present invention and a block diagram of a control system are combined.

FIG. 2 is a side view of the bicycle.

[Explanation of symbols]

1 ... Frame, 3 ... Rear wheel, 10 ... Electromagnetic clutch, 11
... air compressor, 12 ... air motor, 14 ... air tank,
15 ... Air path, 17 ... Open / close valve, 18 ... One-way clutch

Claims (2)

[Scope of utility model registration request] 1. An air compressor, a clutch mechanism for transmitting the rotation of wheels to the air compressor, an air tank for storing air compressed by the air compressor, and an air path connected to the air tank. A bicycle with auxiliary power, comprising an air motor for driving wheels and an opening / closing valve provided in the air path. 2. The bicycle with auxiliary power as claimed in claim 1, wherein the air tank is a frame.