| 摘要 |
A hand tool includes a handle, a tubular member, a driving rod and a return unit. The handle has a passage, a pressing recess, a releasing recess, an engaging recess and a first hole. A tubular member extends through the passage and has a through hole, a bead hole, an annular groove, a first wall and a second wall. The driving rod is inserted through the through hole and has a spiral groove and straight slots which communicates with the spiral groove. A bead is located in the bead hole and magnetically attracted by a magnetic member located in the first hole. The return unit is used to return the driving rod. A C-clip is movably located in the engaging recess. The handle is located at a press position or a release position relative to the tubular member when the C-clip contacts the first wall or the second wall. |
| 主权项 |
1. A hand tool comprising:
a handle having a polygonal passage defined therein, a pressing recess, a releasing recess and an annular engaging recess defined in a first end of the passage, the annular engaging recess located at a first end of the handle, the releasing recess located between the pressing recess and the annular engaging recess, an inner diameter of the pressing recess being larger than that of the passage, an inner diameter of the releasing recess being larger than that of the pressing recess, at least one first hole defined through a wall of the handle and a magnetic member engaged with the at least one first hole, the at least one first hole located corresponding to the releasing recess, a holding portion connected to a second end of the handle; a tubular member linearly and un-rotatably movable in the path, a through hole defined axially through the tubular member, at least one bead hole defined through a wall of the tubular member and a bead being engaged with the at least one bead hole, the at least one bead hole located corresponding to the at least one first hole, an annular groove defined in an outside of the tubular member and located between a first wall and a second wall, an inner threaded section formed in an inner periphery of a first end of the tubular member, a contact face formed at a second end of the tubular member; a driving rod linearly and rotatably movable in the through hole of the tubular member, at least one spiral groove and at least one straight slot defined in an outside of a first end of the driving rod, a depth of the at least one straight slot being smaller than that of the at least one spiral groove, the at least one spiral groove communicating with the at least one straight slot, a start point and an end point being respectively formed on a first ridge and a last ridge of the at least one spiral groove, a first distance defined between the start point and the end point, a flange extending outward from a mediate portion of the outside of the driving rod, the flange contacting the contact face, a function end formed on a second end of the driving rod; a return unit located in the through hole of the tubular member and having a push member, a spring and an end member, the first end of the driving rod contacting the push member, the spring being biased between the push member and the end member, the end member having outer threads on an outside thereof, the outer threads of the end member being threadedly connected to the inner threaded section of the tubular member, a second distance defined between two respective facing ends of the push member and the end member, the first distance being equal to the second distance, and a C-clip movably located within the engaging recess and the annular groove, when the C-clip contacts the first wall, the handle is located at a release position relative to the tubular member, when the C-clip contacts the second wall, the handle is located at a press position relative to the tubular member. |
