JP3412761B2 - Rolling bearing - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller which can be suitably used mainly as a bearing for a rotating plate or a rotating shaft which requires a wide bearing surface and bearing width. About bearings. 2. Description of the Related Art Conventionally, a rolling bearing has a required number of balls or rollers rotatably held between an outer race and an inner race via a retainer. Alternatively, there is a known type in which a required number of balls or rollers are rotatably held between a pair of disks on both sides via a retainer. Such a conventional rolling bearing is disposed between a rotating shaft and a bearing portion, and supports the rotating shaft to smoothly rotate. [0003] By the way, the conventional rolling bearing constructed as described above can support the rotating shaft and smoothly rotate, but has a very small bearing surface and bearing width. Therefore, it cannot be applied to a rotating plate, a rotating shaft, and the like that require a wide bearing surface and a wide bearing width. The present invention solves the problems of the prior art and provides a rolling bearing capable of smoothly and reliably rotating by supporting a rotating plate or a rotating shaft which requires a wide bearing surface and bearing width. It is something to offer. That is, according to the present invention, a required number of fitting holes 4 are formed in a substantially sheet-like flexible bearing substrate 2a, 2b, 2c. The required rolling elements 5 are loosely fitted in the fitting holes 4, and pocket portions 8 are formed on both surfaces of the bearing substrates 2 a, 2 b, and 2 c so as to partially hold the rolling elements 5 so as to protrude outward. The gist of the present invention is a rolling bearing characterized in that the holding members 6 are attached to face each other. Embodiments of the present invention will be described below with reference to an embodiment shown in the drawings. 1 to 4 show a first embodiment of the present invention, in which 1a is a rolling bearing, 2a is a disc-shaped bearing substrate constituting the rolling bearing 1a, and the bearing substrate 2a is It is formed of a flexible synthetic resin sheet material. 3 is a shaft hole formed in the center of the bearing substrate 2a, 4 is a required number of fitting holes formed in the bearing substrate 2a, and the fitting hole 4 has the same circumference along the outer peripheral edge of the bearing substrate 2a. It is formed on a predetermined pitch at the top.
Reference numeral 5 denotes a ball having a required diameter loosely fitted in each of the fitting holes 4, reference numeral 6 denotes a holder attached to both surfaces of the bearing substrate 2a so as to be able to rollably hold the respective balls 5, and reference numeral 7 denotes a holder. A small-diameter disk-shaped mounting portion 8 constituting the holding body 6 is a pocket portion formed at the center of the mounting portion 7 so as to partially hold the ball 5 outwardly. The peripheral surface is formed in an arc shape along the outer peripheral surface of the ball 5. Rolling bearing 1a constructed as described above
As shown in FIG. 4, a fixed toy or the like constituting a required toy or the like is rotatably interposed coaxially between a fixed plate 9 and a rotating plate 10 via a fixed shaft 11. Then, the rotating plate 10 which rotates in a predetermined direction is supported by a driving roller 12 disposed on the outer peripheral edge of the fixed plate 9. At this time, since the required number of balls 5 is rollably held on the disc-shaped bearing substrate 2a via the holding body 6 in the rolling bearing 1a, the bearing surface and the bearing width are very wide, and as a result, In addition, the rotating plate 10 can be firmly supported to smoothly and reliably rotate. Further, since the bearing substrate 2a has flexibility, the bearing substrate 2a can be appropriately bent and can reduce the shock caused by the rotation operation of the rotating plate 10. FIG. 5 shows a rolling bearing 1b according to a second embodiment of the present invention. Balls 5 are interposed on a bearing substrate 2a at predetermined pitches on a bearing substrate 2a via a holding body 6 at predetermined intervals. It differs from the first embodiment in that it is held so that it can roll freely. The rolling bearing 1b configured as described above is provided for use by being coaxially interposed between a fixed plate (not shown) and a rotating plate (not shown), as in the first embodiment. . FIGS. 6 and 7 show a rolling bearing 1c according to a third embodiment of the present invention, in which a bearing substrate 2b is formed in a small rectangular shape with no axial hole, and has two strips along its longitudinal direction. The first embodiment differs from the first embodiment in that the balls 5 are rolled and held at predetermined pitches via a holding body 6, and the other parts are the same, and the same reference numerals indicate the same parts. The rolling bearing 1c configured as described above is mounted on the outer peripheral surface of a circular mounting plate 14 having a shaft hole 13, as shown in FIG. 7, and is used as a bearing. FIG. 8 and FIG. 9 show a rolling bearing 1d according to a fourth embodiment of the present invention, in which a bearing substrate 2c is formed in a wide rectangular shape with no axial hole, and two rows along the longitudinal direction. The first embodiment differs from the first embodiment in that the balls 5 are rolled and held at predetermined pitches via a holding body 6, and the other parts are the same, and the same reference numerals indicate the same parts. Then, the rolling bearing 1d configured as described above is bent into a cylindrical shape, and one of the rolling bearings 1d is interposed between the rotatable outer cylindrical shaft 15 and the inner cylindrical shaft 16 for use. At this time, since the bearing substrate 2c is flexible, it can be easily bent in a perfect circle along the facing surfaces of the inner and outer cylinders 15 and 16. In the first to fourth embodiments, the bearing substrates 2a, 2b, and 2c are formed in a circular shape, a small square shape, and a wide square shape, respectively. Instead, they may be formed in a required shape as needed. Although the ball 5 is shown as a rolling element, a roller may be adopted and used as necessary. According to the present invention, a required number of fitting holes 4 are formed in the substantially sheet-like flexible bearing substrates 2a, 2b and 2c. The required rolling elements 5 are loosely fitted in the fitting holes 4, and pocket portions 8 are formed on both surfaces of the bearing substrates 2 a, 2 b, and 2 c so as to partially hold the rolling elements 5 so as to protrude outward. Since the holding members 6 are attached to face each other, the bearing surface and the bearing width can be increased as compared with the conventional example, and the rotation requiring a wide bearing surface and the bearing width can be achieved. Plate 10 or rotating shaft 15
· It is possible to smoothly and reliably rotate 16 by firmly supporting it. Also, the bearing substrate 2a
・ Since 2b and 2c are assumed to have flexibility,
For example, not only can it bend appropriately to alleviate the impact caused by the rotation of the rotating plate 10, but also can be freely bent into a cylindrical shape or the like for use.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partially enlarged exploded perspective view showing a first embodiment of the present invention. FIG. 2 is a perspective view showing the first embodiment. FIG. 3 is an enlarged sectional view of a main part of the first embodiment. FIG. 4 is a vertical sectional view showing a use state of the first embodiment. FIG. 5 is a plan view showing a second embodiment of the present invention. FIG. 6 is a perspective view showing a third embodiment of the present invention. FIG. 7 is a plan view showing a use state of the third embodiment. FIG. 8 is a perspective view showing a fourth embodiment of the present invention. FIG. 9 is a side view showing a use state of the fourth embodiment. [Description of Signs] 1a, 1b, 1c, 1d Rolling bearings 2a, 2b, 2c Bearing substrate 4 Fitting hole 5 Ball 6 Holder 7 Mounting portion 8 Pocket portion

Continuation of the front page (56) References JP-A-8-320018 (JP, A) JP-A-11-294452 (JP, A) JP-A-10-9264 (JP, A) Jpn. , U) Jikken 40-17130 (JP, Y1) Jikken 43-233444 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) F16C 33/30-33/56 F16C 19/00-19/56

Claims (1)

(57) Claims 1. A substantially sheet-shaped bearing substrate 2a having flexibility.
A required number of fitting holes 4 are formed in 2b and 2c, a required rolling element 5 is loosely fitted in each fitting hole 4, and each of the rolling elements 5 is partially rolled outward. A rolling bearing, characterized in that holding members 6 with pockets 8 are attached to both surfaces of bearing substrates 2a, 2b, 2c in opposition to each other for dynamic holding.