JP4318138B2 - Power assist device utilizing inertia - Google Patents

Description

  The present invention utilizes the deformation of a spring and its restoring force in an object propelled by a wheel, a propeller, etc., and rapidly accelerates the object, such as a wheeled object or a propeller, to assist the propulsion of the inertia of the object. As to how to utilize as.

  The propulsion of the object is carried out by driving the wheels and propellers steadily by means of transmission devices such as chains, belts and gears.

Problems to be solved by the invention

  In the conventional technology described above, relatively weak forces such as human power and solar power generation are utilized in areas such as bicycles and some vehicles that are suitable for such.

  An object of the present invention is to convert a relatively weak force such as human power or solar power generation into an instantaneous force with a strong spring recovery, and drive a bicycle, a wheel of a vehicle, an airplane propeller, and the driven bicycle, a vehicle or a propeller. It is an object of the present invention to provide a method to reinforce a relatively weak force by utilizing the inertia.

Means for solving the problem

The human power assist device of the present invention is
In a bicycle in which the rear wheel can be rotated via a chain or a belt by two pedals displaced by 180 degrees around the rotation axis located at the front lower part of the bicycle body, the bicycle has three arms and a spring,
One side of the 1st arm is attached so that it can rotate to the attachment part of one pedal,
The other side of the first arm is attached so that it can rotate with one side of the second arm,
The other side of the second arm is mounted for rotation with one side of the third arm,
The other side of the third arm is fixed to the bicycle body behind the rotation axis of the two pedals,
One side of the spring is fixed to the position of the rotation axis of the first arm and the second arm, the other side is fixed to the upper part of the bicycle body,
The rotation axes of the first arm and the second arm are located above the rotation axes of the two pedals,
The human power assisting device is configured so that the rotation axes of the second arm and the third arm are positioned below the rotation axes of the two pedals.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  Referring to FIG. 1, arms A1, A2, A3 and a spring A4 are attached to a bicycle. One of the arms A1 is attached to the attachment part of the pedal B1 so as to be rotatable, the other is attached to the arm A2, and further, a spring A4 is attached to the tip of the A1. The other of A2 is attached so that it can rotate with arm A3. The other side of A3 is fixed to a bicycle frame B6. The other of the springs A4 is also attached to the bicycle frame B7. B5 represents the opposite pedal, and B2 represents the center of rotation of the pedals B1 and B5. B3 and B4 represent bicycle wheels. When the pedal is stroked, the swing arm arm A2 swings left and right. That is, the position A5 of the rotary shafts A1 and A2 swings left and right. When pedal B1 is stroked from this position, A5 advances slightly to the left and then slowly advances to the right, that is, spring A4 extends. When A5 returns from the full right to the left, it returns earlier than the way forward. That is, the spring A4 is quickly restored and functions as an assist for pedaling. This auxiliary device extends the spring with a small force, and fully utilizes the restoring force of the spring to assist the pedaling force and accelerate the bicycle. Next, when pedaling so as to extend the spring, it can be pedaled with less force due to the inertia of the bicycle on which the person is riding. In this figure, the auxiliary device is composed of arms, but in addition, a mechanism that combines cams, pulleys, gears, and springs to slow down the spring and to speed up when restoring it is also the same for the left and right pedals. Obviously, it is easy to apply a load.

  Referring to FIG. 2, the power D1 is transmitted to the propeller D3 by utilizing the deformation and restoration of the springs G1 and G2 attached to the frame E1 via the speed reducer D2. The gears C1, C2, and C3 drive the gear C3 by inserting the clutch C1 that transmits the rotation of the gear C2 only in one direction like the gear that drives the rear wheel of the bicycle. That is, when the rotation of the gear C3 in one direction is slower than the rotation of the gear C2, the gear C3 rotates in synchronization with the gear C2, and when the rotation is faster than the rotation of the gear C2, the gear C3 freely rotates at its own speed. it can. A crank-shaped bar F1 is connected to the left gear C3 and the right gear C2, and the right gear C3 and the propeller D3 are connected by the bar F2. The connecting bar between the reduction gear D2 and the gear C2 and the bar F2 are fixed to the frame E1 so as to be rotatable. The spring G1 is connected to one side of the crank and the frame E1, and the spring G2 is connected to the other side of the crank and the frame E1 as shown in the figure. Of course, the spring is attached to the crank so that it can freely rotate. This power assist device operates as follows. That is, the rotation of the power D1 is decelerated by the reduction gear D2 and transmitted to the left gear C2. In the stationary state, the crank F1 is stopped at a position perpendicular to the figure because the tensile strengths of the springs G1 and G2 are balanced. The rotation of C2 rotates the gear C3 through the clutch C1. As a result, the spring G1 is extended and maximized at the position shown in the figure. After the maximum point, the crank F1 is suddenly rotated to a right angle state by the restoring force of the spring G1, and at the same time the right gears C2 and C3 are also suddenly rotated, and as a result, the propeller D3 is also rotated. . When the crank F1 becomes a right angle in an equilibrium state, the rotation of the gear C2 is faster than the left gear C3, so that the spring G2 is now extended and reaches the maximum point as in the case of G1, and the crank F1 is restored to the spring G2. It is suddenly rotated to a right angle by force. This sudden rotation accelerates the rotation of the propeller D3 as in the case of the spring G1. The speed of rotation of the previous propeller D3 and the connected right gear C3 is slow only if the rotation of the right gear C2 is abruptly slowed due to the inertia of the propeller. Subsequently, since the rotation of the propeller D3 is accelerated, the propeller D3 can be rotated at a relatively higher speed than when the propeller is rotated by an optimum reduction gear direct connection. Of course, the power D1 may be human power, and the configuration of the crank and spring may be configured by a cam or the like.

  In this embodiment, the case where the present invention is applied to a bicycle and a propeller has been described. However, if a mechanism using the inertia of an object having a spring and a mass is configured, the present invention can be applied to a toy or a vehicle on which a person rides. Of course, it is obvious that a strong force can be further increased by utilizing this auxiliary device.

The invention's effect

  As described above, even if the present invention is a relatively weak power source such as human power or solar power generation, the auxiliary device can be used to strengthen the power and move at a faster speed than before. In the case of an airplane, there is an effect that the convenience of movement utilizing relatively weak force is increased due to the fact that it is possible to fly more than the conventional distance.

  It is a figure which shows embodiment by the bicycle of this invention.   The figure which applied the power-assistance apparatus of this invention to the rotational force increase of the propeller is shown.

Explanation of symbols

A1 Arm A2 Arm A3 Arm A4 Spring A5 A1, A2 Rotation Axis Position B1 Pedal B2 Pedal B1, B5 Center of Rotation B3 Front Wheel B4 Rear Wheel B5 Pedal B6 Bicycle Frame B7 Bicycle Frame C1 Clutch C1 Gear D Power D2 Reduction gear D3 Propeller E1 Frame F1 Crank-shaped bar F2 Bar G1, G2 Spring

Claims (1)

In a bicycle in which the rear wheel can be rotated via a chain or a belt by two pedals displaced by 180 degrees around the rotation axis located at the front lower part of the bicycle body, the bicycle has three arms and a spring,
One side of the 1st arm is attached so that it can rotate to the attachment part of one pedal,
The other side of the first arm is attached so that it can rotate with one side of the second arm,
The other side of the second arm is mounted for rotation with one side of the third arm,
The other side of the third arm is fixed to the bicycle body behind the rotation axis of the two pedals,
One side of the spring is fixed to the position of the rotation axis of the first arm and the second arm, the other side is fixed to the upper part of the bicycle body,
The rotation axes of the first arm and the second arm are located above the rotation axes of the two pedals,
The human power assisting device is configured so that the rotation axes of the second arm and the third arm are positioned below the rotation axes of the two pedals.

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