Title:
ROLLING BEARING
Document Type and Number:
WIPO Patent Application WO/2017/071138
Kind Code:
A1
Abstract:
A rolling bearing, comprising an outer ring (1), an inner ring (2), and balls (3) between the outer ring and the inner ring; the axial central portion of the outer periphery of the outer ring being provided as a concave curved surface (4), each of the two sides of the concave curved surface (4) being provided with at least two circular conical surfaces (5) respectively, the circular conical surfaces (5) at two transition ends of the concave curved surface (4) being smoothly connected to the concave curved surface (4) respectively, and a smooth transition connecting two adjacent circular conical surfaces (5), so that the outer periphery of the outer ring (1) forms a smooth continuous concavely bending surface. These circular conical surfaces forming a buffering slope that can allows the string to stay in sections on the bearing, and can also make the string to concentrate slowly in the central position of the bearing, thereby reducing the friction between the sections of the string, avoiding the friction between the string and the yo-yo halves, and increasing the rotation time of the yo-yo, so that yo-yo tricks are completed smoothly.
Inventors:
CAI DONGQING (CN)
Application Number:
PCT/CN2016/073161
Publication Date:
May 04, 2017
Filing Date:
February 02, 2016
Export Citation:
Assignee:
GUANGDONG ALPHA ANIMATION & CULTURE CO LTD (CN)
GUANGDONG AULDEY ANIMATION & TOY CO LTD (CN)
GUANGZHOU ALPHA CULTURE COMMUNICATIONS CO LTD (CN)
GUANGDONG AULDEY ANIMATION & TOY CO LTD (CN)
GUANGZHOU ALPHA CULTURE COMMUNICATIONS CO LTD (CN)
International Classes:
F16C33/58; A63H1/30
Foreign References:
| CN202579682U | 2012-12-05 | |||
| CN103174757A | 2013-06-26 | |||
| JP2000037564A | 2000-02-08 | |||
| CN201768356U | 2011-03-23 | |||
| CN105257704A | 2016-01-20 | |||
| CN205101405U | 2016-03-23 |
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