JPS6249012A - Flexible power transmission hose - Google Patents

Abstract

PURPOSE:To smoothly transmit torque, by forming rotary transmission members such that a flare recess having an inner peripheral surface formed therein with elongated holes is formed in each end part of each cylindrical body, and projections at each end of each coupling member are inserted into the above- mentioned elongated holes. CONSTITUTION:Longitudinal elongated holes 2 are formed in the inner peripheral surface of a flare recess section 3 formed in each end of each cylindrical body 1, in the direction perpendicular to the inner surface of the recess section 3, and projections 5 formed at each end part of each coupling member 4 are inserted into the elongated holes to form a rotary transmission member. This rotary transmission member is disposed in a flexible hose 6. With this arrangement, even if the power transmission is long and has several curved sections, and even if torque is transmitted in either direction, no torque is accumulated within the hose. Accordingly, it is possible to smoothly transmit rotating power.

Description

[Detailed description of the invention] A. Field of industrial application Transmitting power rotation through pipes and hoses makes work easier,
In order to improve efficiency, prevent danger, and perform all types of work in locations where the source of power cannot be accessed, it is becoming more and more necessary, especially in the modern era of mechanization.

B. Conventional technology The current technology for transmitting power rotation through pipes and hoses is the technology for transmitting rotation by passing hard and soft wires through the hose.
There is a technology that transmits rotational force by passing hydraulic pressure or air through a hose to the end of the hose using hydraulic pressure or an air motor.C Problems that the invention aims to solve: Power transmission through a wire through a hose is This is only true if the hose is thick, short, and has little curvature; if the hose is long and has a lot of curvature, rotational force will accumulate in the ropes of the wire, making it impossible to obtain smooth rotation, and rotation will only occur in one direction. be limited to.

Power transmission using hydraulic pipes and hoses requires two reciprocating oil hoses and a hydraulic motor at the tip, which requires precision and is of limited use.Power transmission using air hoses An air motor and a compressor to create air pressure are required at the end of the hose, and it is not possible to obtain free rotation speed and powerful rotational force.
In addition, when changing the rotation direction of both hydraulic and air, it is necessary to change the hydraulic pressure at the end of the hose and the air motor, so its use is limited to a small number of people.

D. Means for solving the problem: A trumpet-shaped recess (3) is provided at both ends of the cylindrical body (1), and the length of the inner circumferential surface (3) of the recess is extended in the vertical direction. Hole (2)
The characteristic is that the projections (5) provided at both ends of the connecting member are inserted into the elongated holes (3), and the rotating conductor formed is inserted into the bendable hose (6). Flexible power transmission hose.

Rounding the outer shape of the cylindrical body (1) reduces the friction between the inner wall of the hose and the cylindrical rotating body (1), and makes the inner periphery of the concave part (3) at both ends of the cylindrical body (1) into a thorn-like shape. The elongated hole (2) is provided in the vertical direction so that the connected rotating bodies can rotate as they curve.

The hose (6) through which the rotating body is installed can be a hose made of metal flat metal in a spiral shape, a hose made of cloth or various artificial resins welded, or a hose made of various materials that can handle power rotation friction. Can be formed.

Attach a thin hose (7) to the bendable power transmission hose (6), and if the power source is a motor, you can also attach a start/stop switch cord.If the power source is an engine, a rotation increase/decrease lever can be attached. A bendable power transmission hose that can also pass wires through it.

Even if the working power transmission hose is long and highly curved, and the rotational force is strong, the rotational force is not accumulated in the hose (6), and in order to smoothly transmit the power, the trumpet-shaped recesses (3 ), rotation transmission elongated hole (2), rotation transmission protrusion on both ends of the connecting member (
When the friction part of 5) is made smooth and power rotation is applied to the pipe or hose, the individual rotating bodies in the hose (6) will become smooth as a whole.
It rotates during operation and transmits rotation smoothly.

F. Effects of the invention No matter how long the power transmission hose is, whether it has many curves, whether the rotational force is on either the left or right side, or whether the rotational force is strong, the rotational force is not accumulated in the hose at all, and the rotational power is transmitted smoothly. With the invention of the bendable power transmission hose, it is possible to perform work that requires rotational force in places where power cannot be accessed, and rotational operations and work where heavy power sources cannot be freely lifted or moved quickly. A bendable power transmission hose is a convenient way to obtain powerful rotational force.

The need for light and powerful work that can lift only rotating objects without moving heavy power sources meets the need for rotating work in various fields such as construction, civil engineering, agriculture and forestry, medical care, machine tools, etc. The invention of the bendable power transmission hose will greatly open up new fields of mechanical work in the future.

[Brief explanation of drawings]

Fig. 1 Front view and side view of the rotating body Fig. 2 Front view and side view of the connecting member Fig. 3 Cross-sectional view of the rotating body passing through the hose Fig. 4 The rotating body passing through the hose and the curved state Cross-sectional view of 1...Rotating body 2...Elongated hole for rotation transmission 3...Trumpet-shaped recessed portion 4... ...Rotation guiding connecting member 5...
・Rotation transmission protrusion 6...Hose 7...Hoses for passing wires and cords

Claims (1)

[Claims] 1. A trumpet-shaped recessed part (3) is provided at both ends of the cylindrical body (1), and an elongated hole (2) is bored in the longitudinal direction in the direction of the inner peripheral surface of the recessed part (3), Protrusions (
5) is inserted into the bendable hose (6), and a rotating conductor formed by inserting the rotation conductor into the elongated hole (3) is inserted into the bendable power electric hose.