Portable electric tool
First Claim
1. A portable electric tool operable by a trigger and including a hollow frame which houses an electric motor connected through speed reduction means and transmission means to a working component of the tool, the tool including an electric device operable by the trigger to effect operation of the electric motor to return the transmission means, and the control device automatically to neutral positions thereby to immobilize the trigger.
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Accused Products
Abstract
A portable electric tool, such as, for example, shears or secateurs suitable for pruning and/or harvesting work, comprises at least one moving working component disposed at the front and of a hollow frame one part of which forms the handle of the tool and inside which are housed an electric motor and a speed reducer. The outlet of the speed reducer is connected to the moving working component by means of a transmission system which comprises a moving gear unit. The tool also includes a trigger which protrudes outside the frame and operates an electric control device. The trigger and the electric control device are connected to the moving gear unit of the moving working component and follow the movements of the component. The trigger and the control device can occupy different relative positions, so that each movement made by the trigger from a neutral position, activates the control device, which in turn starts the electric motor to move the whole unit: i.e. the moving gear unit, the trigger, and the control device which then returns automatically to the neutral position at which the trigger is immobilized either by the limit stops, or manually.
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Citations
12 Claims
- 1. A portable electric tool operable by a trigger and including a hollow frame which houses an electric motor connected through speed reduction means and transmission means to a working component of the tool, the tool including an electric device operable by the trigger to effect operation of the electric motor to return the transmission means, and the control device automatically to neutral positions thereby to immobilize the trigger.
- 2. A portable electric tool comprising at least one movable working component, a hollow frame which houses an electric motor and a speed reducer connected through transmission means to the working component of the tool, the tool also including a trigger which extends to a position outside the frame and is movable to operate an electric control device connected to the transmission means, the arrangement being such that each movement made by the trigger away from a neutral position activates the control device to cause the electric motor to move the transmission means, and the control device automatically to neutral positions whereupon the trigger is immobilized.
Specification