Work tool
AssigneeMakita Corporation
InventorMasanori Furusawa
Life of this patent
Estimating the term…
Abstract
A work tool includes a driving motor, a rotary shaft member configured to be rotationally driven by the driving motor, a swinging member configured to be caused to swing by rotation of the rotary shaft member, a tool accessory driving mechanism configured to drive a tool accessory by swinging of the swinging member, a body housing the driving motor, the rotary shaft member, the swinging member and the tool accessory driving mechanism, and a vibration reducing mechanism configured to reduce vibration caused in the body. The vibration reducing mechanism includes a dynamic vibration reducer having an elastic member and a weight, and a connecting member connecting the weight and the swinging member. The vibration reducing mechanism is configured to reciprocate the weight via the connecting member by the swinging of the swinging member.
Claims20
A work tool configured to perform an operation on a workpiece by linearly driving a tool accessory, the work tool comprising:
- a driving motor,
- a rotary shaft member configured to be rotationally driven by the driving motor,
- a swinging member configured to be caused to swing by rotation of the rotary shaft member,
- a tool accessory driving mechanism configured to drive the tool accessory by swinging of the swinging member,
- a body housing the driving motor, the rotary shaft member, the swinging member and the tool accessory driving mechanism, and
- a vibration reducing mechanism configured to reduce vibration caused in the body, wherein:
- the vibration reducing mechanism includes:
- a dynamic vibration reducer having an elastic member and a weight, the weight being biased by the elastic member and being reciprocatable;
- and
- a connecting member directly connected to the weight and the swinging member such that movement of the swinging member is directly conveyed to the weight via the connecting member;
- and
- the vibration reducing mechanism is configured to reciprocate the weight via the connecting member by the swinging of the swinging member.
A work tool configured to perform an operation on a workpiece by linearly driving a tool accessory, the work tool comprising:
- a driving motor,
- a rotary shaft member configured to be rotationally driven by the driving motor,
- a swinging member configured to be caused to swing by rotation of the rotary shaft member,
- a tool accessory driving mechanism configured to drive the tool accessory by swinging of the swinging member,
- a body housing the driving motor, the rotary shaft member, the swinging member and the tool accessory driving mechanism, and
- a vibration reducing mechanism configured to reduce vibration caused in the body, wherein:
- the vibration reducing mechanism includes:
- a dynamic vibration reducer having an elastic member and a weight, the weight being biased by the elastic member and being reciprocatable;
- and
- a connecting member connected to the weight and the swinging member such that movement of the swinging member is forcibly conveyed to the weight via the connecting member;
- and
- the vibration reducing mechanism is configured to reciprocate the weight via the connecting member by the swinging of the swinging member.
Dependencies are inferred from the claim text.