Title:
THREE-ROWS-OF-BALL BEARINGS SLIDING RAIL
Document Type and Number:
WIPO Patent Application WO/2017/128535
Kind Code:
A1
Abstract:
Disclosed is a three-rows-of-ball bearings sliding rail. An inner sliding rail body (1) is supported in at least one outer sliding rail body (2-1, 2-2) via three rows of supporting ball bearings (3-1, 3-2, 3-3) arranged in parallel in the lengthwise direction. The three rows of supporting ball bearings (3-1, 3-2, 3-3) are limited to be within the length range of the outer sliding rail body (2-1, 2-2) via a ball retainer (4). The outer sliding rail body (2-1, 2-2) comprises a bottom plate part (21), two sides of the bottom plate part (21) in the widthwise direction are provided with a first side wall (221) and a second side wall (222) integrated with the bottom plate part (21) and extending in the lengthwise direction of the bottom plate part (21), the bottom end of the first side wall (221) is provided with a supporting part (2211) bent inwards and extending horizontally, the bottom of the second side wall (222) is bent inwards as a whole into an arc-shaped part (2221), the three rows of supporting ball bearings (3-1, 3-2, 3-3) are respectively arranged at the upper inner angle end and the lower inner angle end of the first side wall (221) and the arc-shaped part (2221) of the second side wall in the section of the outer sliding rail body (2-1, 2-2), and connecting lines of the centres of the three rows of supporting ball bearings (3-1, 3-2, 3-3) form an equilateral triangle in the section of the outer sliding rail body (2-1, 2-2). This sliding rail can solve the problem of insufficient bearing capacity in the existing three-rows-of-ball bearings sliding rail, and can meet installation space requirements for a hidden sliding rail.
Inventors:
XU XINGLONG (CN)
ZHANG HAIWEN (CN)
ZHANG FENG (CN)
ZHANG HAIWEN (CN)
ZHANG FENG (CN)
Application Number:
PCT/CN2016/080460
Publication Date:
August 03, 2017
Filing Date:
April 28, 2016
Export Citation:
Assignee:
WUXI HAIDAER PREC SLIDES CO LTD (CN)
International Classes:
F16C29/04; A47B88/493
Foreign References:
| US20110249921A1 | 2011-10-13 | |||
| CN103096756A | 2013-05-08 | |||
| CN105508422A | 2016-04-20 | |||
| CN103206454A | 2013-07-17 | |||
| CN2534886Y | 2003-02-12 | |||
| CN103355964A | 2013-10-23 |
Attorney, Agent or Firm:
WUXI SHENGYANG PATENT & TRADEMARK AGENCE (CN)
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