Title:
CASTER SYSTEM EQUIPPED WITH HAND-OPERATED BRAKES
Document Type and Number:
WIPO Patent Application WO/2011/105563
Kind Code:
A1
Abstract:
Provided is a caster system equipped with hand-operated brakes which is easy to use while being compact, lightweight, and low-cost. Wheels (2) each comprise a tire (1) and a rim (16). Each of the wheels (2) is rotatably supported by a fork section (3) via an axle (15). The fork section (3) is swingably supported by a base section (4) which is mounted on a bag. A hollow swing shaft (14) is swingably mounted on a bearing (12) in the base section (4). A connecting wire (7) which transmits force is pulled by means of a rotation knob in a control section located away from each of the wheels (2). Force is applied by a spring to the connecting wire (7) in the opening direction. Therefore, if the rotation knob is rotated by an angle not smaller than a predetermined value, rotational moment is applied in the reverse direction, resulting in the rotation knob being locked. Force is transmitted to a lever (18) via the wire (7). The force of the wire (7) is amplified by the action of the lever (18), and the resulting force pushes a brake pin (5) which is located inside the swing shaft (14) in the fork section (3). The brake pin (5) abuts the tire (1), with the result that frictional resistance prevents rotation of each of the wheels (2).
Inventors:
EGUCHI TAMAKI (JP)
Application Number:
PCT/JP2011/054336
Publication Date:
September 01, 2011
Filing Date:
February 25, 2011
Export Citation:
Assignee:
HINOMOTO JOMAE LTD (JP)
EGUCHI TAMAKI (JP)
EGUCHI TAMAKI (JP)
International Classes:
B60B33/00; A45C5/14
Domestic Patent References:
| WO2009005031A1 | 2009-01-08 |
Foreign References:
| JP2007099025A | 2007-04-19 | |||
| JPH1191305A | 1999-04-06 | |||
| JPH1156438A | 1999-03-02 | |||
| JPS55160604A | 1980-12-13 |
Other References:
See also references of EP 2540522A4
Attorney, Agent or Firm:
YEN Masaaki et al. (JP)
Role Masaaki (JP)
Role Masaaki (JP)
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Claims: