Power tool
First Claim
1. A power tool comprising:
- a driven member that is operable to grip and drive at least one working element;
a trigger;
a mode selector movable between a first position defined as a working mode and a second position defined as an adjustment mode;
drive means operable to drive the driven member about an axis, in the working mode to enable the working element to perform work, and the drive means operable to drive the driven member relative to the axis in the adjustment mode to enable the working element to be alternatively gripped or released by the driven member;
mechanical torque control means alone controlling the torque transmitted from the drive means to the driven member, the mechanical torque control means including a plurality of torque control settings wherein the mechanical torque control means is operable to render the drive means inoperable to drive the driven member when the torque exceeds a pre-determined level, wherein each torque control setting corresponds to a different pre-determined torque level;
the mechanical torque control means having an adjustment setting whereby the adjustment setting corresponds to a predetermined level of torque in the adjustment mode that is lower than a highest predetermined level of torque available in the work mode.
1 Assignment
0 Petitions
Accused Products
Abstract
A power (1) tool including a driven member (15) that is operable to grip and drive at least one working element (4), drive means (25) operable to drive the driven member, the power tool being operable in either a working mode in which the driven member is driven to enable the working element to perform work, or an adjustment mode in which the driven member is adjusted to grip or release the working element, torque control means (7) controlling the torque produced by the drive means, the torque control means being operable to render the drive means inoperable when the torque exceeds a pre-determined level, the torque control means having an adjustment setting (17) which must be selected to enable the power tool to operate in an adjustment mode whereby the adjustment setting corresponds to a relatively low level of torque.
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Citations
38 Claims
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1. A power tool comprising:
- a driven member that is operable to grip and drive at least one working element;
a trigger;
a mode selector movable between a first position defined as a working mode and a second position defined as an adjustment mode;
drive means operable to drive the driven member about an axis, in the working mode to enable the working element to perform work, and the drive means operable to drive the driven member relative to the axis in the adjustment mode to enable the working element to be alternatively gripped or released by the driven member;
mechanical torque control means alone controlling the torque transmitted from the drive means to the driven member, the mechanical torque control means including a plurality of torque control settings wherein the mechanical torque control means is operable to render the drive means inoperable to drive the driven member when the torque exceeds a pre-determined level, wherein each torque control setting corresponds to a different pre-determined torque level;
the mechanical torque control means having an adjustment setting whereby the adjustment setting corresponds to a predetermined level of torque in the adjustment mode that is lower than a highest predetermined level of torque available in the work mode. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- a driven member that is operable to grip and drive at least one working element;
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9. A power tool comprising:
- a driven member that is operable to grip and drive at least one working element;
a motor operable to drive the driven member a trigger;
a mode selector movable between a first position defining a working mode and a second position defining an adjustment mode;
wherein the motor is operable to drive the driven member about an axis in the working mode to perform work, and the motor is operable to drive the driven member relative to the axis in the adjustment mode to enable the working element to be alternatively gripped or released by the driven member;
a mechanical torque controller alone controlling the torque transmitted from the motor to the driven member, the mechanical torque controller including a plurality of torque control settings wherein the mechanical torque controller is operable to render the motor inoperable to drive the driven member when the torque exceeds a pre-determined level, wherein each torque control setting corresponds to a different pre-determined torque level, the mechanical torque controller having an adjustment setting which must be selected to enable the power tool to operate in the adjustment mode whereby the adjustment setting corresponds to a predetermined level of torque in the adjustment mode that is lower than a highest predetermined level of torque available in the work mode. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
- a driven member that is operable to grip and drive at least one working element;
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20. A power tool comprising:
- a driven member that is operable to grip and drive at least one working element;
a trigger;
a mode selector movable between a first position defined as a working mode and a second position defined as an adjustment mode;
drive means operable to drive the driven member about an axis, in the working mode to enable the working element to perform work, and the drive means operable to drive the driven member relative to the axis in the adjustment mode to enable the working element to be alternatively gripped or released by the driven member;
mechanical torque control means alone controlling the torque transmitted from the drive means to the driven member, the mechanical torque control means including a plurality of torque control settings wherein the mechanical torque control means is operable to render the drive means inoperable to drive the driven member when the torque exceeds a pre-determined level, wherein each torque control setting corresponds to a different pre-determined torque level;
the mechanical torque control means having an adjustment setting whereby the adjustment setting corresponds to a level of torque in an adjustment range, the adjustment range extending from a low level of adjustment torque at a low end of the adjustment range to a high level of adjustment torque at a high end of the adjustment range, the working mode corresponds to a level of torque in a work range, the work range extending from a low level of work torque at a low end of the work range to a high level of work torque at a high end of the work range, the high level of work torque being greater than the high level of adjustment torque. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27)
- a driven member that is operable to grip and drive at least one working element;
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28. A power tool comprising:
- a driven member that is operable to grip and drive at least one working element;
a motor operable to drive the driven member a trigger;
a mode selector movable between a first position defining a working mode and a second position defining an adjustment mode;
wherein the motor is operable to drive the driven member about an axis in the working mode to perform work, and the motor is operable to drive the driven member relative to the axis in the adjustment mode to enable the working element to be alternatively gripped or released by the driven member;
a mechanical torque controller alone controlling the torque transmitted from the motor to the driven member, the mechanical torque controller including a plurality of torque control settings wherein the mechanical torque controller is operable to render the motor inoperable to drive the driven member when the torque exceeds a pre-determined level, wherein each torque control setting corresponds to a different pre-determined torque level, the mechanical torque controller having an adjustment setting which must be selected to enable the power tool to operate in the adjustment mode whereby the adjustment setting corresponds to a level of torque in an adjustment range, the adjustment range extending from a low level of adjustment torque at a low end of the adjustment range to a high level of adjustment torque at a high end of the adjustment range, the working mode corresponds to a level of torque in a work range, the work range extending from a low level of work torque at a low end of the work range to a high level of work torque at a high end of the work range, the high level of work torque being greater than the high level of adjustment torque. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
- a driven member that is operable to grip and drive at least one working element;
Specification