DRIVING TOOL
A driving tool ( 102 ) comprises a socket ( 108 ) mounted at an end of a shaft ( 103 ). Shaft ( 103 ) has a deformable shaft portion. The socket ( 108 ) comprises a plurality of resilient jaws ( 110 ) which are adapted to be compressed together to grip a head of a fastener. A sleeve ( 105 ) comprises a deformable portion ( 106 ). The sleeve ( 105 ) is slidably mounted on shaft ( 103 ). A collar ( 118 ) is mounted to the end of sleeve ( 105 ) and is slidable along deformable shaft portion ( 104 ) and over jaws ( 110 ). Length adjustment means is provided to enable adjustment of the length of the deformable shaft or the deformable sleeve. The length adjustment means comprises a first sleeve member ( 130 ) having a first threaded portion threaded onto a second threaded portion of a second sleeve member ( 136 ).
1 . A driving tool comprising:
a shaft comprising a deformable shaft portion;
a socket mounted to the end of the shaft, the socket comprising a plurality of resilient jaws for gripping the head of a fastener;
a sleeve slidably disposed around the shaft, the sleeve comprising a deformable sleeve portion and a collar moveable over said plurality of resilient jaws to compress the plurality of resilient jaws;
an actuation device adapted to slide the sleeve relative to the shaft; and
a length adjustment device adapted to enable adjustment of the length of the shaft or the sleeve.
2 . A driving tool according to claim 1 , wherein said length adjustment device comprises a first sleeve member disposed around the shaft, the first sleeve member comprising a first threaded portion; and
a second sleeve member disposed around the shaft, the second sleeve member comprising a second threaded portion threaded onto the first threaded portion, wherein length of the sleeve can be adjusted by threading the first sleeve member relative to the second sleeve member.
3 . A driving tool according to claim 3 , further comprising a threaded washer disposed on said first or second threaded portion, the threaded washer arranged to abut the first or second sleeve member to prevent threading of the first or second sleeve member relative to the other of the second or first sleeve member.
4 . A driving tool according to claim 1 , further comprising a handle member mounted to the shaft.
5 . A driving tool according to claim 1 , wherein the actuation means comprises a lever pivotally mounted to the shaft, the lever comprising a cam portion arranged to slide the sleeve along the shaft to move the collar over and compress the plurality of resilient jaws when the lever is pivoted in a first direction.
6 . A driving tool according to claim 5 , further comprising a biasing device adapted to bias the sleeve along the shaft to enable the plurality of resilient jaws to open when the lever is pivoted in a second direction, opposite to the first direction.
7 . (canceled)