JPH04116016U - bearing device - Google Patents

Abstract

(57) [Summary] [Purpose] To easily, reliably, and cost-effectively connect both divided parts of a divided outer ring. [Structure] A conical concave portion 12f and a conical convex portion 12c are provided at the ends of the divided portions 12A and 12B of the outer ring 12, respectively, and these are engaged with each other from the axial direction to form both the divided portions 12A and 1.
2B are integrally combined. Divided portion 1 of divided outer ring 12
Since 2A and 12B are engaged and connected, the joining operation can be performed easily and reliably, and the joining cost can be reduced.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to an improvement of an integral type bearing device.

0002

[Conventional technology]

Conventionally, the bearing device used for the shaft of the tape feeding section of a laser printer, etc. Since the load is low, a simple and inexpensive structure is required. In response to this request As shown in Fig. 2, the bearing device consists of a shaft 1 that also serves as an inner ring, an outer ring 2, and a shaft 1 that also serves as an inner ring. An integral type comprising an outer ring 2 and a ball 3 disposed between the shaft 1. A method has been proposed (see Japanese Utility Model Application Publication No. 160430/1983). Above bearing device The outer ring 2 is divided into two parts in a direction perpendicular to the axis 1, and a cylindrical part is attached to the end of one divided part 2A. 2a, and the outer peripheral part 2b of the other divided part 2B is fitted into this cylindrical part 2a. ing. Then, by welding the protrusions 2c and 2d of both the divided parts 2A and 2B. , the divided parts 2A and 2B are integrally connected.

0003

[Problem that the idea aims to solve]

However, in the above bearing device, the protrusion 2c of the divided parts 2A and 2B is , 2d welding process is required separately, so there is a problem of high joining cost. It was.

0004 Therefore, the purpose of this invention is to easily, reliably, and cost-effectively remove the divided parts of the outer ring. The object of the present invention is to provide a bearing device that can be connected to the bearing device with ease.

[0005]

[Means to solve the problem]

In order to achieve the above object, the present invention has a shaft that also serves as an inner ring, an outer ring, and a shaft that also serves as an inner ring. A bearing device comprising a shaft and a ball disposed between the shaft and the ball. The outer ring is divided into two parts in a direction perpendicular to the axis, and one of the divided parts of the outer ring is The outer periphery of the end and the inner periphery of the end of the other split part are interlocked and connected from the axial direction. It is characterized in that possible conical recesses and conical convexities are respectively provided.

[0006]

[Effect]

Conical recess on the outer periphery of the end of one split part of the split outer ring and the end of the other split part The conical convex portions on the inner circumference of the split portions are engaged with each other from the axial direction to connect the two divided portions. Ryobu Since the split parts are joined together by interlocking, the joining work can be done easily and reliably. , the connection cost is also low.

[0007]

【Example】

Hereinafter, the present invention will be explained in detail with reference to illustrated embodiments.

[0008] As shown in FIG. 1, an integral type bearing device has a shaft 11 and an outer ring 12. , and a ball 13 disposed between the outer ring 12 and the shaft 11. . On the outer periphery of the shaft 11 is a semicircular race 11a into which the inner side of the ball 13 fits. is provided.

[0009] A V-shaped groove 12a into which the outside of the ball 13 fits is formed on the inner periphery of the outer ring 12. It is provided. This outer ring 12 is connected to the shaft 11 with the top of the V-shaped groove 12a as the border. It is divided into two parts 2A and 2B in the orthogonal direction. End portion of the divided portion 12A A conical convex portion 12c is provided on the outer periphery of 12b. In addition, the other divided portion 12 A conical recess 12f is provided on the inner periphery of the end 12e of B. This conical convex part 1 2c and the conical recess 12f have the same conical surface and are easily fitted together from the axial direction. is set to .

0010 According to the above configuration, one of the divided portions 12A is fitted into the shaft 11, and the semicircular shape of the shaft 11 is The ball 13 is fitted into the race 11a, and the wall of the V-shaped groove 12a on the side of the divided portion 12A is The surface is brought into contact with the outside of the ball 13. Next, fit the other divided portion 12B onto the shaft 11. Insert the wall surface of the V-shaped groove 12a on the side of the divided portion 12B into contact with the outside of the ball 13. While pressing the conical concave portion 12f to the conical convex portion 12c from the axial direction, the conical concave portion 12f is fitted. Ru. Then, the divided parts 12A and 12B are integrally combined.

[0011] These two divided portions 12A, 12B are arranged so that the surfaces of the conical convex portion 12c and the conical concave portion 12f Because it is an interlocking connection, it does not come off in the radial direction, but it also does not come off in the axial direction. . Therefore, this joining operation is simple and reliable, and the joining cost is low.

0012

[Effect of the idea]

As is clear from the above explanation, the present invention is based on one divided portion of the divided outer ring. A conical concave portion is provided on one side, and a conical convex portion is provided on the other divided portion, and the conical concave portion and conical convex portion are The convex portions are interlocked with each other to integrally connect both the divided portions. Therefore, since the divided parts of the outer ring are joined by meshing, the joining process is easy. This can be done easily and reliably, and the joining cost is also low.

[Brief explanation of drawings]

[Fig. 1] Cross-sectional view of the bearing device according to the present invention

[Figure 2] Cross-sectional view of a conventional bearing device

[Explanation of symbols]

11...Shaft, 12...Outer ring, 12A, 12B...Divided portion, 12
c... Conical convex part, 12f... Conical concave part, 13... Ball.

Claims (1)

[Scope of utility model registration request] Claim 1: A bearing device comprising a shaft that also serves as an inner ring, an outer ring, and a ball disposed between the outer ring and the shaft, wherein the outer ring is divided into two in a direction perpendicular to the shaft; A conical concave portion and a conical convex portion that can be engaged and connected to each other from the axial direction are provided on the outer periphery of the end of one divided portion and the inner periphery of the end of the other divided portion of the outer ring. A bearing device featuring: