Hand-held tool
A hand-held tool includes a shaft, a grip movably sleeved on the shaft, a pivot seat pivotally mounted to a rear end of the shaft, a first positioning set is mounted into a terminal of the shaft relative to the pivot seat, a second positioning set embedded into an interior of the grip, an end-piece mounted onto a rear end of the grip, a tubular element rotatably mounted onto a front end of the grip and a limit set extending through the front end of the grip for limiting a rotating range of the tubular element. The total length and the shape of the hand-held tool is changeable sue to the relation between the grip and the shaft.
1. A hand-held tool comprising:
a shaft including a shank and a work head connected to a front end of the shank, a annular groove and a curved groove respectively and peripherally defined in the shank, the annular groove and curved groove respectively corresponding to the front end and a rear end of the shaft, a bore longitudinally defined in the rear end of shank;
a grip movably sleeved on the shank and including a through hole longitudinally defined therein and the rear end of the shank extending into through hole, a trough defined in a front end of the grip and communicating with the through hole, a cavity defined in an interior of the through hole and corresponding to the trough, a threaded hole defined in the grip and communicating with the through hole, wherein the threaded hole is front of the cavity relative to the grip;
a pivot seat including a body pivotally connected to a rear end of the shank, a cavity longitudinally defined in the body for pivotally receiving the rear end of the shank, a groove defined in the body and laterally communicating with the cavity in the body to allow the shank being wiggled relative to the pivot seat, a through hole radially defined in the body;
a first positioning seat mounted into the bore and selectively engaged into the through hole in the pivot seat for positioning the shaft after being wiggled;
a second positioning set mounted into the cavity in the grip and selectively engaged into the annular groove and the curved groove;
an end-piece mounted onto a rear end of the grip for closing the through hole in the grip;
a tubular element rotatably mounted to a front end of the grip, the tubular element including a passage laterally defined therein and selectively communicating with the trough to allow the shank passing through the tubular element and the grip, a slot peripherally defined in the tubular element and communicating with the threaded hole;
a limit set screwed through the threaded hole and partially received in the slot in the tubular element for limiting a rotating range of the tubular element.
2. The hand-held tool as claimed in claim 1 , wherein the shank includes a flat portion formed the rear end thereof, the flat portion having a width slightly smaller than that of the cavity in the pivot seat.
3. The hand-held tool as claimed in claim 2 , wherein the shank includes a first pivot hole defined in the flat portion and transversely extending through the shank, and the body of the pivot seat includes a second pivot hole defined therein and extending therethrough, two pivots respectively extending through the two opposite ends of the second pivot hole and pivotally inserted into two opposite ends of the first pivot hole for pivotally mounting the rear end of the shank to the body.
4. The hand-held tool as claimed in claim 1 , wherein the through hole in the grip has a polygonal cross-section and the body of the pivot seat has a cross-section corresponding to that of the through hole in the grip such that the body of the pivot seat can not be rotated relative to the grip.
5. The hand-held tool as claimed in claim 1 , wherein the body of the pivot seat has a tapered plane formed on a front end thereof for pushing second positioning set when the shank is wiggled and forms a T-shape with the grip.
6. The hand-held tool as claimed in claim 1 , wherein the first positioning set includes a first spring and a first cap sequentially mounted into the bore such that the first cap is reciprocally moved relative to the shank due to the restitution force of the first spring, the first cap having a diameter greater than that of the through hole in the body and selectively partially engaged into the through hole in the body.
7. The hand-held tool as claimed in claim 1 , wherein the second positioning set includes a second spring and a second cap sequentially mounted into the cavity in the grip such that the second cap is reciprocally radially moved relative to the grip sue to the restitution force of the second spring, the second cap engaged into the annular groove when the shank is moved into the through hole in the grip and the second cap engaged into the curve groove when the shank outwardly extends from the grip.
8. The hand-held tool as claimed in claim 1 , wherein the limit set includes a third spring and a blot respectively and sequentially mounted into the slot in the tubular element and the threaded hole such that the third spring is compressively disposed between the bolt and the periphery of the shank.