JPS6065909A - Simple type detachable universal joint - Google Patents

Abstract

PURPOSE:To obtain combined function consisting of those-functions of a universal joint, transmission of driving force and a detachable construction, by energizing and coupling an universal joint provided between a drive shaft and la driven shaft to one shaft and by pushing the coupling part to enable release of coupling. CONSTITUTION:An universal joint body 1 is formed cylindrical type land a through hole 2l is drilled in the axial direction. And a groove 3 in the axial direction is provided near the side of one shaft and a through hole 4 in the right angle direction to the groove 3 is provided near the side of the other shaft on the wall of both sides. The tip of a pin 6 provided in cross with the tip of a drive shaft 5 is inserted in the groove 3. A through groove 8 is provided on the tip of a driven shaft 7 and the through groove 8 is engaged with a fixing pin 9 provided in the through hole 4. Global projections R2, R1 are formed on the sides of the both shafts 5, 7 of the through hole 2, and a spring 10 is provided between the projections R2, R1.... Then function of the universal joint, transmission function of driving force and detachable construction can be combined together.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention relates to a simple detachable universal joint constructed between a driving shaft and a driven shaft, and more specifically, a universal joint constructed between two shafts and a single shaft. This invention relates to a simple detachable universal joint which is configured to be biased and connected by a spring and can be released by pressing and compressing.

[Prior art]

Conventionally, a universal joint commonly known as a cruciform joint has a non-removable structure. Moreover, even if the universal joint is detachable, the mounting axis direction is narrowly limited, and it no longer has the function of a universal joint. If it were to be detachable and still function as a universal joint, there would be problems such as a complicated structure.

[Purpose of the invention]

The present invention has been made to solve the above problems, and provides a simple detachable universal joint that has the functions of a universal joint, a driving force transmission function, and a detachable structure. The purpose is to provide joints.

(Structure of the Invention) In order to achieve the above object, the present invention inserts a driving shaft and a driven shaft from both sides into a universal joint body having a through hole in the axial direction, and inserts a pin at one end of the -shaft in a direction orthogonal to the shaft. The fixing pin is fixed to the main body, the pin is engaged with an axial groove bored in the side wall of the main body, a through groove is formed at one end of the other shaft, and the fixing pin is passed through the through groove and attached to the side wall of the main body. A spring is interposed between one shaft that is fixedly installed and a pin is fixed to the main body, and the main shaft is biased and connected, and the main shaft and the other shaft are configured to be detachable, and the above three functions are achieved in a simple structure. It has a structure that allows for easy installation of two shafts.

〔Example〕

Hereinafter, the present invention will be explained based on embodiments shown in the drawings.

FIG. 1 is a perspective view showing a state in which the universal joint of the present invention and two shafts are connected. Universal joint body (11 is formed in a cylindrical shape,
A through hole (2) is bored in the axial direction. Then, grooves (31, (31) in the axial direction are bored in the both side walls. Grooves f
31. (31 is provided as close as possible to one axis side of the main body (11, and a through hole (4, 1, (41) is bored in the direction perpendicular to the gap f31.+31 on the other axis side.Through hole ( 41, (
41 is also provided as close to the other axis as possible.

FIG. 2 shows a cross-sectional view of the universal joint of the invention.

At the tip of the drive shaft (5), a pin (6
), and both ends of the pin (6) are in the grooves (3),
(31). Also, at the tip of the driven shaft (7), a through groove (8) in a direction perpendicular to the pin (6) is bored with the end open. The through groove (8) has a fixing pin (fixed to the through hole (41, +41)
9) is configured to be engaged.

A spherical protrusion (R3) for functioning as a universal joint is formed on the driven wheel (7) side of the through hole (2). Furthermore, a spherical protrusion (R2) is similarly press-fitted on the drive shaft (5) side. And, springs QO) and Qω are interposed in a compressed state between the two curved protrusions (R1) and (R2), so that the springs aO) are interposed in a compressed state.

00) urges the main body (11) toward the driven shaft (7), the fixing pin (9) presses the driven shaft (7) in the through groove (8), and the main body (1) and the driven shaft (7) The main body (11) is pushed in the direction of the drive shaft (5) to release the connection between the driven shaft (7) and the main body (11), and the driven shaft (7) is
) to remove the groove (3). +) and the length β2) of the insertion part of the driven shaft (7) are i,>j! 2
It is said that

In addition, (at) and (az) in the figure indicate the function of the universal joint.
(bl is the driving force transmission function, tc+ is the universal joint +11
Shows removable features.

In the embodiment, the driven shaft (7) is a detachable movable shaft, but the drive shaft (5) may be configured as a movable shaft. In addition, the spherical protrusions (R1) and (R2) were formed to function as a universal joint, but if the transmission load of the driving force is small, a gap should be provided at the tips of the spherical protrusions (RIB, (R2)). , spherical protrusions (R1), and (R2) may be formed into trapezoidal or square shapes.

〔Effect of the invention〕

According to the present invention, since the universal joint function, the driving force transmission function, and the detachable structure are combined, precise positioning of the shafts is not required, and the joint connection can be easily performed. Further, since the structure is simple, the parts related to the shaft and the universal joint are easy to manufacture, and the production cost can be reduced.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a state in which the universal joint of the present invention and two shafts are coupled, and FIG. 2 is a sectional view of the universal joint of the present invention. (1): Universal joint body (2): Through hole (3): Groove (
4): Through hole (5): Drive shaft (6): Pin (7): Driven shaft (8): Through groove (9): Fixed pin α0); Spring (j!+)
: Length of the groove (3) J2): Length of the insertion part of the driven shaft (7) R+),
(R2): Spherical protrusion patent applicant Masu Tebori (and 2 others), Fuji Xerox Co., Ltd. agent

Claims (1)

[Claims] 1. A drive shaft and a driven wheel are inserted from both sides into a universal joint body having a through hole in the axial direction, a pin is fixed at one end of the shaft perpendicular to the shaft, and a shaft is bored in the side wall of the body. engaging the pin in a groove in the direction and forming a through groove in one end of the other shaft;
A simple and removable device characterized in that a fixing pin is fixed to the side wall of the main body through the through groove, and a spring is interposed between the shaft on which the pin is fixed and the main body to be biased and connected. Universal joint.