JPH06144539A - Radial bearing unit for roller and roller fitted therewith - Google Patents

Abstract

PURPOSE:To enable a radial bearing or the like to be easily fitted to a roller to be used for a roller conveyor or the like. CONSTITUTION:On the outside of a bearing body 6 comprising an inner race 2, outer race 3, steel balls 4, and a retainer 5, a fitting part 8 is formed. In the fitting part 8, an inward stopper 11 and an outward stopper 12 are formed at a given interval. The fitting part 8 and the outer race 3 like this are integrally formed as a resin part 10, and an annular groove 9 is formed between the fitting part 8 and the outer race 3, so that the fitting part 8 can be elastically deformed in the direction the diameter is reduced. The opening end of a roller member 20 is inwardly rolled in to form a curved shape, and the opening end periphery of the curved part 21 is fitted in a bearing fitting groove 22. The bearing unit 1 is pushed thereinto while being elastically deformed, so that the inward stopper 11 and the outward stopper 12 are positioned on the outside and the inside of the opening end periphery respectively, and the bearing unit 1 is brought into the condition that the bearing unit 1 has been fitted to the end part of the roller member 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bearing unit mounted on a roller such as a roller conveyor, and a roller mounted with the bearing unit.

[0002]

2. Description of the Related Art For example, a bearing is provided between a support shaft and a roller in order to rotatably support a roller of a roller conveyor. As the bearing, a bearing is conventionally described in Japanese Utility Model Publication No. 3-25370. Things are known. Therefore, as shown in FIG. 3, a radial bearing member 102 is provided between the end of the cylindrical roller member 100 and the shaft 101 inserted therein, and the radial bearing member 102 is integrally molded of synthetic resin. The bearing portion 103 is integrally provided with the mounting portion 105 via the gap 104, and the collar 106 is formed at the tip of the mounting portion 105.

Then, the radial bearing member 10
After the mounting of No. 2, the periphery of the opening of the roller member 100 is caulked in the diameter reducing direction, so that the collar 106 abuts the opening end of the roller member 100 and is prevented from moving inward.
Further, the caulked peripheral portion of the opening of the roller member 100 prevents the radial bearing member 102 from moving outward.

[0004]

However, in such a conventional radial bearing member, a step of caulking the roller member 100 after assembling it to the roller member is indispensable, and therefore, the radial bearing member is applied to the roller member. There is a drawback that it is troublesome to install.

An object of the present invention is to allow a radial bearing member to be easily attached to an end portion of a roller member,
This is to make it easy to obtain a roller member with a bearing.

[0006]

In order to solve such a problem, according to the present invention, a radial bearing unit mounted in a bearing mounting hole at an end portion of a roller member is provided with a bearing body, a mounting portion, and an inward direction. It is configured to include a stopper and an outward stopper.

The mounting portion is integrally provided on the outside of the bearing body with a predetermined gap, and is elastically deformable toward the center of the bearing body in the diameter reducing direction. The inward stopper is formed on the mounting portion and abuts the opening edge of the bearing mounting hole of the roller member from the outside to prevent the bearing unit from moving inward of the bearing mounting hole. . Further, the outward stopper is formed on the mounting portion and contacts the opening edge of the bearing mounting hole of the roller member from the inside to prevent the bearing unit from moving to the outside of the bearing mounting hole. To do.

In the state where such a radial bearing unit is mounted on the roller member, this constitutes one roller assembly, and as the roller member, the following can be preferably used. That is,
It has a cylindrical shape as a whole, and its end portion is curved so as to be wound inward, and an opening edge portion in which the end portion is wound has a bearing as a mounting hole.

[0009]

When the bearing unit according to the present invention is mounted in the bearing mounting hole of the roller member, if the bearing unit is pushed in, the mounting portion is elastically deformed in the diameter reducing direction, and the mounting portion is directed outward. The stopper is located inside the bearing mounting hole over the opening edge, and the inward stopper faces the outside from the outside, and the bearing unit is restricted from moving inward or outward. Then, it is attached to the end of the roller member with one touch.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional view of an angular radial bearing unit 1 (hereinafter simply referred to as a bearing unit) that is an embodiment of the present invention. The bearing unit 1 includes a cylindrical inner race 2, a cylindrical outer race 3, a plurality of steel balls 4 arranged between them, and a retainer 5 that holds the steel balls. The bearing body 6 is configured.

A cylindrical mounting portion 8 is integrally formed on the outer side of the outer race 3, and an annular groove (gap) 9 is formed between the mounting portion 8 and the outer race 3. . The annular groove 9 is formed from the outer side (right side in FIG. 1) of the bearing body 6 toward the inner side (also left side). The outer race 3 and the mounting portion 8 are integrally formed as a resin component 10 made of synthetic resin, and the presence of the annular groove 9 causes the mounting portion 8 of the resin component 10 to be elastically deformed in the diameter reducing direction. It is possible.

A flange-shaped inward stopper 11 protruding outward is formed at the tip of the mounting portion 8, and
An outward stopper 12 having a semicircular cross section is formed in a rib-like projection over the entire circumference of the mounting portion 8 with a semicircular cross section spaced inward from the inward stopper 11.

On the other hand, as shown in FIG. 2, the roller member 20 to which such a bearing unit 1 is mounted has a cylindrical shape as a whole, but both end portions thereof are wound inwardly and substantially. It is curved in a semicircular cross section, and the opening edge of this curved portion 21 is the bearing mounting hole 22.
Are configured.

When the bearing unit 1 as described above is mounted on the roller member 20, the unit 1 is pushed into the bearing mounting hole 22 of the roller member 20 from the outward stopper 12 side. By the pushing, the outward stopper 12 of the mounting portion 8 is pushed while being in contact with the outer surface of the curved portion 21 of the roller member 20, whereby the mounting portion 8 is pushed.
Elastically deforms in the diameter reducing direction, and the outward stopper 12 gets over the opening edge of the bearing mounting hole 22 and comes into contact with the opening edge from the inside. Further, in this state, the inward stopper 11 of the mounting portion 8 comes into contact with the opening edge of the bearing mounting hole 22 from the outside, in other words, the curved portion 21 of the roller member 20 from the outside. As a result, the bearing unit 1 is attached to the end of the roller member 20 with one touch in a state in which the inward stopper 11 and the outward stopper 12 prevent the bearing unit 1 from moving inward or outward.

A roller assembly 30 is obtained by assembling the bearing unit 1 as described above, and a predetermined shaft 31 is inserted into the inner race 2 with respect to the roller assembly 30, so that the roller assembly 30 is used as a roller of a roller conveyor. The Rukoto.

In the bearing unit 1 described above, it is possible to form a plurality of slits in the mounting portion 8 substantially parallel to the center line, which makes it easier to elastically deform the mounting portion 8. Become.

Although the bearing unit 1 is of the angular type in the above description, it can be constructed as a sliding bearing, that is, a plain bearing.

[0018]

According to the present invention, the radial bearing unit can be mounted on the end portion of the roller member with one touch, and once mounted, the radial bearing unit can be used as it is as a roller assembly. That is, it is unnecessary to perform a troublesome process of assembling the bearing unit to the roller member and then caulking the end portion of the roller member as in the conventional case.

Further, if the end portion of the roller member on which the bearing unit is mounted is curved so as to be wound inward from the cylindrical state, the bearing mounting hole can be easily formed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a radial bearing unit that is an embodiment of the present invention.

FIG. 2 is a sectional view of a main part of a roller assembly in which the bearing unit is mounted on a roller member.

FIG. 3 is a partial cross-sectional view of a conventional example.

[Explanation of symbols]

 1 Radial Bearing Unit 2 Inner Race 3 Outer Race 4 Steel Ball 5 Retainer 6 Bearing Body 8 Mounting Part 9 Annular Groove 10 Resin Part 11 Inner Stopper 12 Outer Stopper 20 Roller Member 21 Curved Part 22 Bearing Mounting Hole 30 Roller Assembly 31 axis

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[Procedure amendment]

[Submission date] June 26, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 1

[Correction method] Change

[Correction content]

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] Claim 2

[Correction method] Change

[Correction content]

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0004

[Correction method] Change

[Correction content]

[0004]

However, in such a conventional radial bearing member 102 , a step of caulking the roller member 100 after being assembled to the roller member is indispensable, and therefore the radial bearing member 1 is required.
There is a drawback that it is troublesome to attach 02 to the roller member.

Claims (3)

[Claims] 1. A radial bearing unit mounted in a bearing mounting hole at an end portion of a roller member, the bearing main body being integrally provided outside the bearing main body with a predetermined gap, and the bearing main body. And a mounting portion that is elastically deformable in the direction of contraction toward the center of the roller, and that is formed in the mounting portion and abuts the opening edge of the bearing mounting hole of the roller member from the outside, and An inward stopper that prevents the bearing unit from moving inward, and the bearing unit that contacts the opening edge of the bearing mounting hole of the roller member from the inside to prevent the bearing unit from moving outside the bearing mounting hole. A radial bearing unit for a roller, comprising: an outward stopper that prevents the roller from moving toward the outside. 2. A roller member having bearing mounting holes at both ends, and a radial bearing unit mounted in the bearing mounting hole of the roller member, wherein the radial bearing unit has a shaft for supporting the roller member passing therethrough. A bearing body, a mounting portion that is integrally provided outside the bearing body with a predetermined gap, and that is elastically deformable toward the center side of the bearing body in the diameter reducing direction; and the mounting portion is formed. An inward stopper that abuts against the opening edge of the bearing mounting hole of the roller member from the outside to prevent the bearing unit from moving inward of the bearing mounting hole; The bearing unit contacts the opening edge of the bearing mounting hole of the roller member from the inside so that the bearing unit is located outside the bearing mounting hole. A roller equipped with a radial bearing unit, comprising: an outward stopper that prevents the roller from moving to. 3. The roller member has a cylindrical shape, and the end portion of the roller member is curved so as to be wound inward, and the rolled-in opening edge portion constitutes the bearing mounting hole. The roller according to claim 2, wherein