Title:
RATCHET MECHANISM OF STAGGERED LOCKING AND RELEASING AND RATCHET CLAMP
Document Type and Number:
WIPO Patent Application WO/2018/126360
Kind Code:
A1
Abstract:
Disclosed is a ratchet clamp, wherein a first clamp arm (11) and a second clamp arm (12) thereof are mutually pin jointed to relatively open or close via connecting shafts (13), a ratchet tooth assembly (30), a swing assembly (20) and a control assembly (40) are arranged between the first clamp arm (11) and the second clamp arm (12); the ratchet tooth assembly (30) has a plurality of first ratchet teeth (311) and a plurality of second ratchet teeth (321) arranged in a line and mutually staggered; the swing assembly (20) and the ratchet tooth assembly (30) relatively keep away or draw close by means of the connection shafts (13) as a rotary axis; a clamping piece of the control assembly (40) has at least one first pawl (432) and at least one second pawl (442), and a pulling piece of the control assembly (40) is used to toggle the clamping piece to move, when moved to the engaging position, the first pawl (432) and the second pawl (442) respectively being engaged with the corresponding first ratchet teeth (311) and second ratchet teeth (321), and when moved to the releasing position, the first pawl (432) and the second pawl (442) respectively being away from the corresponding first ratchet teeth (311) and second ratchet teeth (321). By the design of the ratchet teeth arranged in a mutually staggered manner, it is not necessary to reduce the tooth profile, thereby increasing the structural strength and substantially increasing the overall clamping force.
Inventors:
LI YUEMING (CN)
Application Number:
PCT/CN2017/070165
Publication Date:
July 12, 2018
Filing Date:
January 04, 2017
Export Citation:
Assignee:
HANGZHOU GREAT STAR TOOLS CO LTD (CN)
HANGZHOU GREAT STAR IND CO LTD (CN)
HANGZHOU GREAT STAR IND CO LTD (CN)
International Classes:
B25B7/14
Foreign References:
| CN105983921A | 2016-10-05 | |||
| CN105328595A | 2016-02-17 | |||
| CN105397655A | 2016-03-16 | |||
| CN203390768U | 2014-01-15 | |||
| CN1923464A | 2007-03-07 | |||
| JPH11277454A | 1999-10-12 | |||
| US6708587B1 | 2004-03-23 |
Other References:
See also references of EP 3566811A4
Attorney, Agent or Firm:
SUNRAY INTELLECTUAL PROPERTY ATTORNEYS (CN)
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