Title:
DOUBLE-LOCK CASTER
Document Type and Number:
WIPO Patent Application WO/2015/118672
Kind Code:
A1
Abstract:
[Problem] To provide a double-lock caster comprising a simple structure which can regulate the swivelling of a wheel of the caster and is capable of double brake locking the wheel of the caster. [Solution] The present invention is characterised by comprising: an operating shaft which rises and falls by abutting against a cam surface of a cam that has been rotatably built into the upper part of a stem; a swivel-preventing plate part which has been fixed to the lower end of the operating shaft; an engagement member which is fixed to a support yoke and regulates the swivelling by engaging with the swivel-preventing plate part; a brake shoe part which is fixed to the lower part of the swivel-preventing plate part and brakes by abutting against a tread surface of a wheel when the operating shaft falls; a link cam which causes a link cam to pivot and causes a brake plate to rise and fall by being connected to the brake shoe part; and a protruding part for braking which, by the displacement of the brake plate, is capable of engaging with and disengaging from an annular engagement-receiving part that has been formed in the inner periphery of the wheel.
Inventors:
YAMAMOTO TAKAHIRO (JP)
IIYAMA NORIYUKI (JP)
IIYAMA NORIYUKI (JP)
Application Number:
PCT/JP2014/052976
Publication Date:
August 13, 2015
Filing Date:
February 07, 2014
Export Citation:
Assignee:
NANSIN CO LTD (JP)
International Classes:
B60B33/00
Foreign References:
| US5774936A | 1998-07-07 | |||
| JP2008001355A | 2008-01-10 | |||
| JP2005306190A | 2005-11-04 |
Other References:
See also references of EP 3103653A4
Attorney, Agent or Firm:
NISHI, Yoshihisa (JP)
West Yoshihisa (JP)
West Yoshihisa (JP)
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