Control device for ratchet tool
AssigneeWilliam Tools Co., Ltd.
InventorShui Lai Chiang
Life of this patent
Estimating the term…
Abstract
A ratchet tool includes a handle having a chamber formed in a head for rotatably receiving a drive member which includes a gear, a pawl is received within the handle and includes two end portions for engaging with the gear of the drive member, to control driving directions of the drive member by the head of the handle. A pawl actuating member is rotatably received in the handle and includes a channel for slidably receiving an actuator. A spring may bias either of the end portions of the pawl to selectively engage with the gear, and to control the driving directions of the drive member by the handle. The actuator includes an actuating finger for engaging with either of two protrusions extended from the pawl.
Claims7
A ratchet tool comprising:
- a handle including a head provided on one end thereof, and having a chamber formed therein, and including a compartment formed therein and spaced away from said chamber of said head, and including a space formed therein and located between and communicating with said chamber and said compartment thereof,
- a drive member rotatably received within said chamber of said head, and including a gear provided on an outer peripheral portion thereof,
- a pawl pivotally received within said space of said handle, and including two end portions for selectively engaging with said gear of said drive member, in order to control driving directions of said drive member by said head of said handle,
- a pawl actuating member rotatably received within said compartment of said handle, and including a knob extended therefrom for being actuated by a user, and including a channel formed therein, and including two protrusions extended therefrom,
- an actuator slidably received in said channel of said pawl actuating member, and arranged to be rotated relative to said pawl and said head by said pawl actuating member, and said actuator including an actuating finger extended therefrom for engaging onto said pawl, and for engaging with either of said protrusions of said pawl, and
- a spring member engaged between said pawl actuating member and said actuator, for biasing said actuator to engage with said pawl, and for forcing either of said end portions of said pawl to selectively engage with said gear of said drive member, and to control the driving directions of said drive member by said head of said handle.
Dependencies are inferred from the claim text.