IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0664531
(2005-10-15)
|
등록번호 |
US-8181546
(2012-05-22)
|
우선권정보 |
DK-2004 01584 (2004-10-15) |
국제출원번호 |
PCT/DK2005/000663
(2005-10-15)
|
§371/§102 date |
20071119
(20071119)
|
국제공개번호 |
WO2006/039931
(2006-04-20)
|
발명자
/ 주소 |
- Larsen, Phillip
- Knudsen, Martin Kahr
- Sørensen, René
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
4 |
초록
▼
In an actuator, a quick release unit is introduced in a transmission between an activating element and a reversible electric motor for disengaging the activating element (5) from the electric motor and the part of the transmission (6) which is disposed from the motor to the quick release unit. This
In an actuator, a quick release unit is introduced in a transmission between an activating element and a reversible electric motor for disengaging the activating element (5) from the electric motor and the part of the transmission (6) which is disposed from the motor to the quick release unit. This quick release unit comprises two cylindrical coupling parts (8, 9) provided with axially extending and mutually engaging torque-transferring means (21a, 21b), and where the two coupling parts (8, 9) are mutually axially displaceable and kept in engagement with each other by a spring (25). The two coupling parts may be displaced mutually against the spring (25) by a release mechanism, so that the torque-transferring connection (21a, 21b) between the two coupling parts (8, 9) is interrupted. The quick release unit may be made compact, and especially in connection with a worm wheel (6) with a cylindrical part on the side it may be substantially received in the cylindrical part.
대표청구항
▼
1. A linear actuator comprising an outer housing having a reversible electric motor which, via a transmission with at least one gear wheel, drives a spindle with a shaft end, a bearing on the shaft end for the mounting of the spindle, a spindle nut on the spindle and which fixed against rotation is
1. A linear actuator comprising an outer housing having a reversible electric motor which, via a transmission with at least one gear wheel, drives a spindle with a shaft end, a bearing on the shaft end for the mounting of the spindle, a spindle nut on the spindle and which fixed against rotation is moved in and out of the spindle depending on the direction of rotation of the motor, an activating element connected with the spindle nut, a quick release unit disposed in the transmission between the activating element and the reversible electric motor for disengaging the activating element from the electric motor and the part of the transmission which is disposed from the motor to the quick release unit, said quick release unit comprising two cylindrical coupling parts, said quick release unit being adapted to be activated by a release mechanism, wherein the quick release unit is disposed at the gear wheel, and the two cylindrical coupling parts are provided with axially-extending and mutually-engaged, torque-transferring means, and the two coupling parts are mutually axially displaceable, and including a spring which is coaxially positioned relative to said two coupling parts to cause said two coupling parts to be engaged, said release mechanism when activated pushing the two coupling parts towards one another to disengage the torque-transferring means therebetween. 2. The actuator according to claim 1, wherein said two cylindrical coupling parts include an inner cylindrical coupling part which extends into an outer cylindrical coupling part. 3. The actuator according to claim 2, wherein said inner and outer coupling parts are received completely or partly in a hollow in the gear wheel. 4. The actuator according to claim 3, wherein the internal coupling part is secured on the end of a spindle, and wherein the external coupling part is in engagement with the gear wheel. 5. The actuator according to claim 4, wherein the release mechanism comprises an eccentric in connection with the disc. 6. The actuator according to claim 3, wherein the release mechanism comprises a disc with at least one leg which protrudes through an opening in the gear wheel, and which, when pressed in toward the gear wheel, pushes the outer coupling part out of engagement with the inner coupling part. 7. The actuator according to claim 2, wherein the spring is a cylindrical spring arranged between a collar on the outer coupling part and a collar on the inner coupling part, respectively. 8. The actuator according to claim 7, wherein the collar on the inner coupling part is formed by a disc in engagement with an annular groove oh the inner coupling part. 9. The actuator according to claim 2, wherein the torque-transferring engaging means on the outer coupling part are configured as ribs in a hollow thereof, wherein the inner coupling part has a narrowed end capable of passing through an opening defined by the ribs, and wherein a step between the narrowed end and an outer side of the inner coupling part is configured with corresponding ribs. 10. The actuator according to claim 1, wherein the coupling parts are arranged in extension of each other on the shaft end of the spindle. 11. The actuator according to claim 10, wherein the facing edges of the coupling parts are configured with the torque-transferring mutually engaging means in the form of claws. 12. The actuator according to claim 11, wherein the quick release unit is configured such that between the claws there is a space of such a size that the claws enter into engagement also during rotation of the spindle. 13. A linear actuator comprising an outer housing having a reversible electric motor which, via a transmission with at least one gear wheel, drives a spindle with a shaft end, a bearing on the shaft end for the mounting of the spindle, a spindle nut on the spindle and which fixed against rotation is moved in and out of the spindle depending on the direction of rotation of the motor, an activating element connected with the spindle nut, a quick release unit disposed in the transmission between the activating element and the reversible electric motor for disengaging the activating element from the electric motor and the part of the transmission which is disposed from the motor to the quick release unit, said quick release unit comprising two cylindrical coupling parts, said quick release unit being adapted to be activated by a release mechanism, wherein the quick release unit is disposed at the gear wheel, and the two cylindrical coupling parts are provided with axially-extending and mutually-engaged, torque-transferring means, and the two coupling parts are mutually axially displaceable, and including a spring which is coaxially positioned relative to said two coupling parts to cause said two coupling parts to be engaged, said release mechanism when activated pushing the two coupling parts apart to disconnect the torque-transferring connection therebetween, wherein the coupling parts are arranged in extension of each other on a shaft end of the spindle, wherein the spring is a cylindrical spring arranged between a collar on the coupling part and the side of the worm wheel, and wherein the coupling part may be displaced against the spring in toward the worm wheel to interrupt the connection between the two coupling parts. 14. The actuator according to claim 13, wherein the release mechanism comprises a tilting element which is arranged rotatably about an axis, and which, with a lower part, in a rest position, is fitted down over the coupling part with a pair of legs and rests against the collar opposite the spring. 15. The actuator according to claim 14, wherein the release mechanism comprises an axially displaceable element with a hook-shaped end, which extends into a recess in an upper inclined part of the tilting element and which is connected with the operating handle via a cable.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.