IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0857102
(2010-08-16)
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등록번호 |
US-8292001
(2012-10-23)
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발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
Harness, Dickey & Pierce, P.L.C.
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인용정보 |
피인용 횟수 :
4 인용 특허 :
302 |
초록
▼
A drill includes a housing with a motor coupled to an output spindle via a transmission. A mode collar can be rotatably mounted on the housing for movement that corresponds to different modes of operation. The mode collar can be coupled to an electronic switch to operate a movable member thereof. Th
A drill includes a housing with a motor coupled to an output spindle via a transmission. A mode collar can be rotatably mounted on the housing for movement that corresponds to different modes of operation. The mode collar can be coupled to an electronic switch to operate a movable member thereof. The coupling can include a switch housing including a slide member, an actuation spring member and a return spring member. The mode collar can have a cam surface and a cam follower in the form of a shift pin that moves the slide member, causing actuation of the switch. The actuation spring member provides a biasing force that is sufficient to overcome a biasing force of a switch spring member to move the movable member into the actuated position. The mode collar can also enable and disable contact between a fixed hammer member and a movable hammer member mounted around the output spindle.
대표청구항
▼
1. A multi-mode drill comprising: a housing having a motor including an output member;an output spindle journaled in the housing;a transmission disposed in the housing and operably coupling the output member to the output spindle;a mode collar rotatably mounted on the housing and encircling the rota
1. A multi-mode drill comprising: a housing having a motor including an output member;an output spindle journaled in the housing;a transmission disposed in the housing and operably coupling the output member to the output spindle;a mode collar rotatably mounted on the housing and encircling the rotary output spindle and movable between a plurality of positions including a first mode collar position corresponding to a first mode of operation and a second mode collar position corresponding to a second mode of operation, the mode collar defining a cam surface;a cam follower biased against the cam surface, the cam follower having a first cam follower position resulting from the mode collar being in the first mode collar position and a second cam follower position resulting from the mode collar being in the second mode collar position;an electronic switch having a movable member biased to an outward position by a switch spring member;an actuation spring member operably mounted between the cam follower and the movable member of the electronic switch; andwherein when the cam follower is in the first cam follower position, the actuation spring member provides a biasing force that is sufficient to overcome a biasing force of the switch spring member to thereby actuate the movable member of the switch, and when the cam follower is in the second cam follower position, the actuation spring member provides a biasing force that is insufficient to overcome a biasing force of the switch spring member to thereby permit the switch spring member to move the movable member into an unactuated position. 2. A multi-mode drill according to claim 1, wherein the first mode of operation includes a first drill speed mode and the second mode of operation includes a second drill speed mode. 3. A multi-mode drill according to claim 1, wherein the cam follower is a shift pin that moves in a direction substantially parallel to an axis of the output spindle when the cam follower moves between the first cam follower position and the second cam follower position. 4. A multi-mode drill according to claim 1, further comprising a slide member interposed between the cam follower and the actuation spring member, and the actuation spring member interposed between the slide member and the movable member of the switch. 5. A multi-mode drill according to claim 4, further comprising a return spring that biases the slide member away from the movable member of the switch. 6. A multi-mode drill according to claim 4, wherein the slide member is configured to move in a direction that is substantially perpendicular to a direction in which the cam follower moves when the cam follower moves between the first cam follower position and the second cam follower position. 7. A multi-mode drill according to claim 6, wherein the cam follower is a shift pin which and the direction in which the cam follower moves is substantially parallel to an axis of the output spindle. 8. A multi-mode drill according to claim 4, further comprising a switch housing in which electronic switch, the actuation spring member, and the slide member are mounted, and further comprising a return spring mounted between the slide member and the housing and operable to bias the slide member away from the movable member of the switch. 9. A multi-mode drill according to claim 8, wherein the first mode of operation includes a first drill speed mode and the second mode of operation includes a second drill speed mode. 10. A multi-mode drill comprising: a housing having a motor including an output member;an output spindle journaled in the housing;a transmission disposed in the housing and operably coupling the output member to the output spindle;a mode collar rotatably mounted on the housing and encircling the rotary output spindle and movable between a plurality of positions including a first mode collar position corresponding to a first mode of operation and a second mode collar position corresponding to a second mode of operation, the mode collar defining a cam surface;a cam follower biased against the cam surface, the cam follower having a first cam follower position resulting from the mode collar being in the first mode collar position and a second cam follower position resulting from the mode collar being in the second mode collar position;an electronic switch having a movable member having an actuated position and a non-actuated position;an intermediate member operably mounted between the cam follower and the movable member of the electronic switch; andwherein when the cam follower is in the first cam follower position, the intermediate member is in a first intermediate member position that causes the movable member to move into the actuated position, and when the cam follower is in the second cam follower position, the intermediate member is in a second intermediate member position that permits the movable member to move into the non-actuated position. 11. A multi-mode drill according to claim 10, wherein the first mode of operation includes a first drill speed mode and the second mode of operation includes a second drill speed mode. 12. A multi-mode drill according to claim 10, wherein the cam follower is a shift pin that moves in a direction substantially parallel to an axis of the output spindle when the cam follower moves between the first cam follower position and the second cam follower position. 13. A multi-mode drill according to claim 10, further comprising an actuation spring member interposed between the cam follower and the intermediate position. 14. A multi-mode drill according to claim 13, wherein the intermediate member is configured to move in a direction that is substantially perpendicular to a direction in which the cam follower moves when the cam follower moves between the first cam follower position and the second cam follower position. 15. A multi-mode drill according to claim 14, wherein the cam follower is a shift pin which and the direction in which the cam follower moves is substantially parallel to an axis of the output spindle. 16. A multi-mode drill according to claim 13, further comprising a switch housing in which electronic switch, the actuation spring member, and the slide member are mounted, and further comprising a return spring mounted between the slide member and the housing and operable to bias the slide member away from the movable member of the switch. 17. A multi-mode drill according to claim 16, wherein the first mode of operation includes a first drill speed mode and the second mode of operation includes a second drill speed mode. 18. A multi-mode drill according to claim 10, further comprising a return spring that biases the intermediate member away from the movable member of the switch. 19. A multi-mode drill comprising: a housing having a motor including an output member;an output spindle journaled in the housing;a transmission disposed in the housing and operably coupling the output member to the output spindle;a mode collar rotatably mounted on the housing and movable between a first mode collar position corresponding to a first mode of operation and a second mode collar position corresponding to a second mode of operation, the mode collar defining a cam surface;a cam follower biased against the cam surface, the cam follower having a first cam follower position resulting from the mode collar being in the first mode collar position and a second cam follower position resulting from the mode collar being in the second mode collar position;an electronic switch that switches between an actuated position and a non-actuated position;a slide member operably mounted between the cam follower and the electronic switch; andwherein when the cam follower is in the first cam follower position, the slide member is in a first slide member position that causes the electronic switch to switch into the actuated position, and when the cam follower is in the second cam follower position, the slide member is in a second slide member position that permits the electronic switch to return to the non-actuated position. 20. A multi-mode drill according to claim 19, wherein the cam follower is a shift pin that moves in a direction substantially parallel to an axis of the output spindle when the cam follower moves between the first cam follower position and the second cam follower position.
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