Title:
LOCK MECHANISM FOR APPARATUS COMPRISING SWIVEL CASTER
Document Type and Number:
WIPO Patent Application WO/2024/100921
Kind Code:
A1
Abstract:
The present invention makes it so that a shopping cart (hereinafter, cart) comprising swivel casters will not travel independently, regardless of the slope of a road surface, and a movable conference desk or similar will not move after being placed, even if an external force is applied thereto. The present invention comprises: a swivel caster that includes a wheel body comprising two wheels and a rotation limiting member that is interposed between and unified with said wheels; a selection means that selects traveling or locking; a transmission means that transmits the selection result to a lock pin, and is flexible; and the lock pin, which is positioned at the center of swiveling of the swivel caster, is linked to the transmission means, and moves up and down. The rotation limiting member has an external shape that does not interfere with the lock pin in a specific rotation angle range, and does interfere with the same in a different angle range. When locking is selected, the lock pin lowers and locks if the rotation limiting member is in the specific rotation angle range, and in the other angle range, the lock pin interferes with the rotation limiting member but, due to the flexibility of the transmission means, does not press the rotation limiting member in a restrictive manner, and with a small movement of the cart afterward, the wheel body rotates and the lock pin lowers.
Inventors:
ISHIKAWA NOBUO (JP)
Application Number:
PCT/JP2023/023445
Publication Date:
May 16, 2024
Filing Date:
June 19, 2023
Export Citation:
Assignee:
ABLE CORP (JP)
International Classes:
B60B33/00; F16D63/00
Foreign References:
| KR20220023410A | 2022-03-02 | |||
| JP2010274811A | 2010-12-09 | |||
| JP2006096327A | 2006-04-13 |
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