An electrical tool includes a trigger lock assembly having a trigger lock member, a detent assembly, and a return spring. The trigger lock member is movable relative to a trigger between a neutral position, in which the trigger is movable between an off position and an on position, a lock-off positi
An electrical tool includes a trigger lock assembly having a trigger lock member, a detent assembly, and a return spring. The trigger lock member is movable relative to a trigger between a neutral position, in which the trigger is movable between an off position and an on position, a lock-off position, in which the trigger is prevented from moving from the off position, and a lock-on position, in which the trigger is maintained in the on position. The detent assembly is operable to releaseably retain the trigger lock member in each position and includes a recess associated with each position. The detent assembly also includes a projection selectively engageable in one of the recesses to releasably retain the trigger lock member in the associated position, and a biasing member biasing the projection into engagement. The return spring is operable to bias the trigger lock member toward the neutral position.
대표청구항▼
1. An electrical tool comprising: a housing;a motor supported by the housing;a trigger movable between an on position, in which the motor is in electrical communication with a power source, and an off position, in which the motor is not in electrical communication with the power source; anda trigger
1. An electrical tool comprising: a housing;a motor supported by the housing;a trigger movable between an on position, in which the motor is in electrical communication with a power source, and an off position, in which the motor is not in electrical communication with the power source; anda trigger lock assembly including a trigger lock member movable relative to the trigger between a neutral position, in which the trigger is movable between the off position and the on position, a lock-off position, in which the trigger is prevented from moving from the off position, and a lock-on position, in which the trigger is maintained in the on position,a detent assembly operable to releasably retain the trigger lock member in each position, the detent assembly including a first recess associated with the neutral position, a second recess associated with the lock-off position, and a third recess associated with the lock-on position,a projection selectively engageable in one of the first recess, the second recess, and the third recess to releasably retain the trigger lock member in the associated position, anda biasing member biasing the projection and the one of the first recess, the second recess, and the third recess into engagement, and a return spring operable to bias the trigger lock member toward the neutral position. 2. The electrical tool of claim 1, further comprising a lubricant dispenser including a reservoir for containing lubricant and a pump assembly driven by the motor and operable to pump lubricant. 3. The electrical tool of claim 1, wherein the first recess is positioned between the second recess and the third recess. 4. The electrical tool of claim 3, wherein the return spring biases the trigger lock member from the lock-on position toward the neutral position. 5. The electrical tool of claim 4, wherein the detent assembly is configured so that the return spring cannot bias the trigger lock member from the neutral position to the lock-off position. 6. The electrical tool of claim 5, wherein the detent assembly further includes a first ridge between the first recess and the second recess, and a second ridge between the first recess and the third recess, the first ridge having a height greater than a height of the second ridge such that the return spring cannot bias the trigger lock member from the neutral position to the lock-off position. 7. The electrical tool of claim 1, wherein the trigger pivots relative to the housing between the on position and the off position. 8. The electrical tool of claim 1, wherein the trigger lock member is movable in a first direction from the neutral position to the lock-off position and in a second direction opposite the first direction from the neutral position to the lock-on position. 9. The electrical tool of claim 8, wherein the trigger lock member slides linearly relative to the housing between the neutral position, the lock-off position, and the lock-on position. 10. The electrical tool of claim 8, wherein the return spring biases the trigger lock member in the first direction. 11. The electrical tool of claim 10, wherein the detent assembly is configured to allow the return spring to bias the trigger lock member from the lock-on position to the neutral position and inhibit the return spring from biasing the trigger lock member from the neutral position to the lock-off position. 12. The electrical tool of claim 1, wherein the biasing member is a cantilevered spring, and wherein the projection is positioned adjacent a free end of the cantilevered spring. 13. The electrical tool of claim 12, wherein the projection is formed as a single piece with the biasing member. 14. The electrical tool of claim 1, wherein the trigger lock member includes a hook contacting an edge of the trigger to restrict movement of the trigger when in the lock-off position. 15. The electrical tool of claim 14, wherein the hook is received at least partially within an aperture in the trigger to restrict movement of the trigger when in the lock-on position. 16. The electrical tool of claim 1, wherein the return spring automatically moves the trigger lock member from the lock-on position toward the neutral position when pressure is applied to the trigger. 17. A lubricant dispenser comprising: a housing;a reservoir for containing lubricant;a motor supported by the housing;a pump assembly driven by the motor and operable to pump lubricant;a trigger movable between an on position, in which the motor is in electrical communication with a power source, and an off position, in which the motor is not in electrical communication with the power source; anda trigger lock assembly including a trigger lock member movable relative to the trigger between a neutral position, in which the trigger is movable between the off position and the on position, a lock-off position, in which the trigger is prevented from moving from the off position, and a lock-on position, in which the trigger is maintained in the on position,a detent assembly operable to releasably retain the trigger lock member in each position, the detent assembly including a first recess associated with the neutral position, a second recess associated with the lock-off position, and a third recess associated with the lock-on position,a projection selectively engageable in one of the first recess, the second recess, and the third recess to releasably retain the trigger lock member in the associated position, anda biasing member biasing the projection and the one of the first recess, the second recess, and the third recess into engagement, anda return spring operable to bias the trigger lock member toward the neutral position. 18. An electrical tool comprising: a housing;a motor supported by the housing;a trigger movable between an on position, in which the motor is in electrical communication with a power source, and an off position, in which the motor is not in electrical communication with the power source; anda trigger lock assembly including a trigger lock member movable relative to the trigger between a neutral position, in which the trigger is movable between the off position and the on position, a lock-off position, in which the trigger is prevented from moving from the off position, and a lock-on position, in which the trigger is maintained in the on position, the trigger lock member including a hook engaging the trigger to restrict movement of the trigger when in the lock-off position and when in the lock-on position,a detent assembly operable to releasably retain the trigger lock member in each position, the detent assembly including a first recess associated with the neutral position, a second recess associated with the lock-off position, and a third recess associated with the lock-on position,a projection selectively engageable in one of the first recess, the second recess, and the third recess to releasably retain the trigger lock member in the associated position, anda biasing member biasing the projection and the one of the first recess, the second recess, and the third recess into engagement, anda return spring operable to bias the trigger lock member toward the neutral position. 19. The electrical tool of claim 18, wherein the hook contacts an edge of the trigger to restrict movement of the trigger when in the lock-off position. 20. The electrical tool of claim 18, wherein the hook is received at least partially within an aperture in the trigger to restrict movement of the trigger when in the lock-on position.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (58)
Reimann Christian (Rottweil DT) Weber Hugo (Gosheim DT) Ueth Ewald (Rietheim DT), Actuator construction having releasable lock in actuated and deactuated positions.
Massimo Sanna (Agrate Brianza ITX), System and device for supplying desired liquid volumes by means of a metering pump in variable flow rate condition.
Baidwan Balinderjeet S. (1236 Garfield Denver CO 80206) Iwaski Dean H. (1465 Monroe St. Denver CO 80206), Vented piston and push-rod subassembly for use in a syringe barrel.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.