Abstract A caster equipped with a stopper for use in a wagon, a chair or the like, comprising a proper whose shell is formed into a substantially circular arc and which supports wheels through an axle, a stopper piece which is provided at an inner end of the proper and which freely contacts with parts of the wheels so as to lock or unlock the wheels, a lock pin which protrudes from a window provided in the proper, a compression spring which is interposed between the stopper piece and boss portions of the proper and whose elasticity acts on the lock pin as an unlocking force, a control piece which is provided with a lock hole for snugly and slidably inserting the lock pin therein, which is mounted at a desired inclination angle relative to the lock pin and whose base end is fixed to the proper, and a release pin which protrudes from a window provided in the proper and which, when pushed inwards, depresses a free end of the control piece.
A caster equipped with a stopper, comprising: a proper whose shell is formed into a substantially circular arc and which supports wheels through an axle, a stopper piece which is provided at an inner end of said proper and which freely contacts with parts of said wheels so as to lock rotation of said wheels and to release the locking, a lock pin which protrudes from a window provided in said proper, a compression spring which is retained between said stopper piece and boss portions of said proper and whose elasticity urges said lock pin as an unlocking force, a control piece which is provided with a lock hole for snugly and slidably inserting said lock pin therein, which is mounted at a desired inclination angle with respect to said lock pin and whose base end is fixed to said proper, and a release pin which protrudes from a window provided in said proper and which, when pushed inwards, depresses a free end of said control piece.
Claim 2
Dependent Claim
167 words
A caster equipped with a stopper, comprising: a proper whose shell is formed into a substantially circular arc and which supports wheels through an axle, a stopper piece which is provided at an inner end of said proper and which freely contacts with parts of said wheels so as to lock rotation of said wheels and to release the locking, a lock pin which protrudes from a window provided in said proper, a compression spring which is retained between said stopper piece and boss portions of said proper and whose elasticity urges said lock pin as an unlocking force, a control piece which is provided with a lock hole for snugly and slidably inserting said lock pin therein, which is mounted at a desired inclination angle with respect to said lock pin and whose base end is fixed to said proper, and a release pin which protrudes from a window provided in said proper and which, when pushed inwards, depresses a free end of said control piece.
Claim 3
Dependent Claim
19 words
A caster equipped with a stopper as defined in claim 1, wherein said control piece is a leaf spring.