Title:
COUNTERWEIGHT DEVICE FOR LIFT
Document Type and Number:
WIPO Patent Application WO/2012/022156
Kind Code:
A1
Abstract:
A counterweight device for a lift comprises a counterweight frame, counterweight blocks (2) and pressing plates (1) for the counterweight blocks. The counterweight frame is a rectangular frame composed of two long vertical beams (4), an upper side beam (3) and a lower side beam (5). A cross drawing plate (7) is fixed between the two long vertical beams (4). A short vertical beam (6) is connected between the cross drawing plate (7) and the middle part of the lower side beam (5). Two counterweight guide slots are formed between the short vertical beam (6) and the two long vertical beams (4). The counterweight blocks (2) are superposed in the two guide slots from bottom to top, respectively. Two pressing plates (1) for the counterweight blocks are fixed between the short vertical beam (6) and the two long vertical beams (4) at an upper end of the counterweight blocks (2), and stride over the two guide slots respectively.
Inventors:
WANG YOULIN (CN)
ZHANG JIANHONG (CN)
YU CHENG (CN)
WANG LIANGLIANG (CN)
ZHANG JIANHONG (CN)
YU CHENG (CN)
WANG LIANGLIANG (CN)
Application Number:
PCT/CN2011/072576
Publication Date:
February 23, 2012
Filing Date:
April 10, 2011
Export Citation:
Assignee:
CANNY ELEVATOR CO LTD (CN)
WANG YOULIN (CN)
ZHANG JIANHONG (CN)
YU CHENG (CN)
WANG LIANGLIANG (CN)
WANG YOULIN (CN)
ZHANG JIANHONG (CN)
YU CHENG (CN)
WANG LIANGLIANG (CN)
International Classes:
B66B11/00; B66B17/12
Foreign References:
| CN101920887A | 2010-12-22 | |||
| CN201737563U | 2011-02-09 | |||
| JPH1081469A | 1998-03-31 | |||
| JPS6475388A | 1989-03-22 | |||
| CN101088900A | 2007-12-19 | |||
| JP2010070344A | 2010-04-02 |
Attorney, Agent or Firm:
NANJING JINGWEI PATENT & TRADEMARK AGENCY CO., (CN)
南京经纬专利商标代理有限公司 (CN)
南京经纬专利商标代理有限公司 (CN)
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Claims: