JPH0720416Y2 - Joint structure of connection body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a joint structure for connecting rotation of a driving body side to a driving body of a connecting body for transmitting rotation to a driven body fitted with a socket provided at a tip.

[Prior Art] Conventionally, a connector used for rotating a driven body at a remote position is provided with a socket portion to be fitted to the driven body side on the tip side, and to the driving side on the other end side. A square shaft is provided, and a steel ball is provided on the square shaft by urging a spring in the pushing direction.The steel ball is linearly applied to the driven body through the connecting rod body fitted with the square shaft. In order to make it possible to transfer the drive-side angle shaft to swing the drive-side connecting body, the connecting rod body is shaken to form a mountain shape with the line passing through the steel ball as a boundary, and the torque is generated. It is known that the information is transmitted.

[Problems to be Solved by the Invention] In order to transmit the torque from the drive unit side to the driven body at a distant position, the conventional connecting rod body is desired to be a linear type that most easily transmits the torque. Depending on the location, straight lines may not be used, and in this case, a swingable one should be used. Therefore, there was the inconvenience of having to carry two types.

[Means for Solving the Problems] The present invention has been made in view of the above circumstances in order to address this problem, and includes a joint portion provided with an angular shaft for attaching and detaching a square hole socket on the drive side, In a connecting body having a square hole socket fitted to the square shaft of the driven body at the tip of the other end, the square shaft of the joint portion of the connecting body is provided on the driving body square hole socket on any one surface. In addition to providing a lateral hole for fitting a steel ball on which a spring that engages and disengages is provided in the recess, a slope is provided on each surface along the ridge line with the steel ball as a boundary, and at the base of the angular axis,
The joint structure of the connecting body is characterized by the formation of a rectangular step for inserting and removing the tip of the socket on the driver side. Also, by forming a square stepped portion at the base of the square shaft, it is possible to use the two types of connecting bodies as a straight type and a swing type without carrying them, and to provide the purpose of eliminating inconvenience. It is a thing.

[Operation] According to the present invention, the socket portion 4 is provided at the tip, the angular shaft 3 and the rectangular step portion 8 of the joint portion are provided at the other end, and further, the spring 7 is urged to any one surface of the angular shaft 3 in the steel. When the drive side socket 2 is connected to this joint part with a ball 6, the tightening work is narrow and difficult, and when an angle is required, the drive side socket 2 is placed in the angular axis 3 of the joint part. When the steel ball 6 is fitted into the recess 2a in the socket 2 and driven through the driving side socket 2, the square shaft 3 is swung back and forth and left and right around the ridge X around the steel ball 6 and tightened. Or loosened (first
See FIG. 2). Next, when it is possible to perform linear tightening at a deeper tightening position, the tip of the drive side socket 2 can be inserted and engaged up to the position of the rectangular stepped portion 8 of the joint portion to perform straight tightening (see FIG. 4).

[Embodiment] Next, an embodiment of a joint structure for a connecting body according to the present invention will be described with reference to the accompanying drawings.

Reference numeral 1 denotes a connecting rod main body. This main body 1 is provided with a square shaft 3 into which a socket 2 having a square hole for transmitting drive is fitted and a square hole socket portion 4 at the other end (tip side) on the drive side of one end. Further, a lateral hole 5 is provided on one of the surfaces of the angular shaft 3 at the one end of the main body 1, and a steel ball 6 and a spring 7 biasing the steel ball 6 in the pushing direction are fitted therein. The tip edge is slightly crimped so that the steel ball 6 does not come out. Further, each surface of the angular axis 3 is divided into slopes a and b with the lateral ridge line X of the angular axis 3 passing through the steel ball 6 as a boundary, and the driving side to be fitted to the angular axis 3 A steel ball 6 is fitted into a recess 2a provided in the socket 2 so that the socket 2 on the drive side can be swung about 30 ° about the steel ball 6 so that the socket 2 can swing forward, backward, leftward and rightward.

Further, a rectangular step portion 8 for engaging the tip end side of the drive side socket 2 is formed on the base end side of the square shaft, and the socket 2 is attached to this square step 8.
When the tip of the is inserted and engaged, the drive is made linear and driven.

[Effects] The present invention provides a joint portion provided with a square shaft for attaching / detaching the drive side square hole socket as described above, and a square hole socket for inserting into the square shaft of the driven body at the tip of the other end. In the connection body, the square axis of the joint portion of the connection body is provided with a horizontal hole on any one surface for fitting a steel ball on which a spring engaging and disengaging the recess provided in the drive body square hole socket is fitted. The joint structure of the connecting body is characterized in that a sloping surface is provided on each surface along the ridgeline as a boundary, and a square step portion for inserting and removing the tip end portion of the socket on the driver side is formed at the base of the square shaft. The socket is fitted with a socket with a square hole provided on the joint part on the driver side, and a slope is formed at the boundary between the recess provided in the socket and the ridgeline passing through the steel ball to be shaped. The front and rear and left and right can be swung, and tightening is possible even at positions where tightening is impossible. It is possible to operate, and further, a square step is formed on the base side of the square shaft of the joint part, and the tip of the socket on the driver side can be inserted and engaged to transmit torque linearly. It has the effect of being able to use one body as a single body and solving the inconvenience of form.

[Brief description of drawings]

The drawings show one embodiment of the joint structure of the connecting body according to the present invention. FIG. 1 is a front view of a universal joint, and FIG.
FIG. 3 is a plan view of a part of the drawing, FIG. 3 is a vertical cross-sectional view taken along the line YY of FIG. 1, and FIG. 4 is a front view of a part when connected linearly. DESCRIPTION OF SYMBOLS 1 ... Connection rod main body, 2 ... Socket, 2a ... Recessed part 3 ... Square shaft, 4 ... Square hole socket part, 5 ... Horizontal hole 6 ... Steel ball, 7 ... Spring, 8 ... Square step X ... Ridge line, a, b … Slope

Claims (1)

[Scope of utility model registration request] 1. A connection body having a joint portion provided with a square shaft for attaching and detaching a drive side square hole socket, and a square hole socket provided at the other end for inserting into the square shaft of a driven body. The square axis of the joint portion of this connection body is provided with a horizontal hole on one of the surfaces into which a steel ball on which a spring that engages and disengages with a recess provided in the drive body square hole socket is fitted is formed, and the steel ball serves as a boundary along the ridgeline. A joint structure of a connecting body, characterized in that a slope is provided on each surface, and a square step portion for inserting and removing the tip end portion of the socket on the driver side is formed at the base of the square shaft.