Control device for ratchet wrench
OwnerTerence Cheninventor
Life of this patent
Estimating the term…
Abstract
A ratchet wrench includes a head having an engaging portion for mounting an object and a through hole which includes an engaging inner periphery and a smooth inner periphery, and is closed by a bottom plate with a central hole. A movable member is movably received in the second through hole and includes a driving section and a connection section. An operation portion includes a handle and a mounting portion which has a connection recess so as to be engaged with the connection section of the movable member. The driving section of the movable member is removably engaged with the engaging inner periphery. By moving the movable member relative to the mounting portion, the handle can be selectively rotated freely or co-rotated with the head.
Claims9
A ratchet wrench comprising:
- a head having an engaging portion which includes a first through hole with a polygonal inner periphery which is adapted to be engaged with an object and a second through hole which includes an engaging inner periphery and a smooth inner periphery, a bottom plate with a central hole engaged with the smooth inner periphery;
- a movable member movably received in the second through hole, a top protrusion and a bottom protrusion extending from two opposite ends of the movable member, a driving section and a connection section extending radially from the movable member and located between the top and bottom protrusions, and
- an operation portion including a handle and a mounting portion, a connection recess defined in an underside of the mounting portion and a top hole which communicates with the connection recess, the top protrusion movably extending through the top hole and the bottom protrusion extending through the central hole of the bottom plate, the connection section of the movable member removably engaged with the connection recess and the driving section of the movable member removably engaged with the engaging inner periphery.
A ratchet wrench comprising:
- a head having an engaging portion which includes a first through hole with a polygonal inner periphery which is adapted to be engaged with an object and a second through hole which includes a first engaging inner periphery, a bottom plate with a central hole engaged with the second through hole;
- a movable member composed of a cap member and a rod portion, the rod portion movably received in the second through hole and having a flange that has a first engaging outer periphery which is removably engaged with the first engaging, inner periphery, the rod portion including a first end and a second end, the second end movably extending through the central hole of the bottom plate, the cap member having a polygonal recess and the first end of the rod portion being movably engaged with the polygonal recess so that the rod portion is co-rotated with the cap member, the cap member having an annular lip which has a second engaging outer periphery, and
- an operation portion including a handle and a mounting portion, a connection recess defined in an underside of the mounting portion and a top hole which communicates with the connection recess, the top hole including an inward flange so as to stop the annular lip of the cap member, the connection recess having a second engaging inner periphery and the second engaging outer periphery of the cap member removably engaged with the second engaging inner periphery.
Dependencies are inferred from the claim text.