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Locking system for trigger component of electrical device

A technology of electrical equipment and triggers, applied in the direction of electrical components, drilling equipment, contact operating parts, etc., can solve problems such as user injury and user confusion

Active Publication Date: 2019-07-02
DEFOND ELECTECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One perceived problem with this dual purpose mechanism, ie lockout / lockout mechanism, is that the user may be confused and may inadvertently disable the lockout mechanism and allow electrical equipment to open, causing injury to the user

Method used

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  • Locking system for trigger component of electrical device
  • Locking system for trigger component of electrical device
  • Locking system for trigger component of electrical device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030] will now refer to Figure 1 to Figure 11 Preferred embodiments of the present invention are described. Embodiments include a variable speed trigger assembly 100 for use with a power tool having an electric motor, including, for example, a drill, grinder, sander, saw, rotary drive tool, and the like. More specifically, embodiments described herein include a variable speed trigger assembly having a locking system that provides a lock-on and a lock-off function. It should be appreciated and understood that while the present embodiment has been described as being used with a power tool, this is for functional purposes only and that alternative embodiments of the invention may of course be used with other types of electrical equipment, such as garden tools. )use together.

[0031] The variable speed trigger assembly 100 includes a manual trigger member 130 that is rotatably movable about a hinge 133 relative to the electrical switch housing 120 . Return spring 136 biases ...

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PUM

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Abstract

A locking system for the trigger component of an electrical device is disclosed. The electrical device has an electrical switch housing, and an electrical switch unit is disposed in the electrical switch housing. The trigger component includes a trigger member configured to move relative to the housing; an actuator member operatively connected to the trigger member, and movable in a first direction relative to the housing from an OFF position to an ON position in response to the movement of the trigger member relative to the housing, wherein at the OFF position, the electrical switch is operatively turned off by the actuator, and at the ON position, the electrical switch is operatively turned on by the actuator and the actuator member is movable relative to the housing from the ON positionto the OFF position in the second direction; and an activation locking mechanism including a first locking member mounted in the vicinity of the trigger member and a second locking member mounted inthe vicinity of the housing.

Description

technical field [0001] The present invention relates to a locking system for an on-lock and off-lock of a trigger of electrical equipment such as power tools, garden tools and the like. Background technique [0002] It is sometimes desirable to set an electrical device, such as a power tool, that operates continuously with a trigger over an extended period of time at a desired speed. To reduce fatigue on the user's fingers operating the trigger, a "start lock" mechanism is provided to allow the power tool to be locked at a desired operating speed without the user having to maintain pressure on the trigger. The same actuation lockout mechanism can also be configured to have a dual function as an "off-lockout" mechanism, ie a mechanism that is selectively movable to an off-lock position that prevents the trigger from being squeezed and prevents the electrical device from being opened. One perceived problem with such a dual-purpose mechanism, ie, an actuated lockout / off-lockou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H21/30H01H9/20
CPCH01H21/30H01H9/20H01H3/20H01H9/06H01H21/10B25F5/02H01H19/03H01H19/635H01H2231/048
Inventor 王健余
Owner DEFOND ELECTECH CO LTD