IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
UP-0462145
(2006-08-03)
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등록번호 |
US-7681495
(2010-04-21)
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발명자
/ 주소 |
- Wan, Yiu Chung
- Hood, Lance Logan
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출원인 / 주소 |
|
대리인 / 주소 |
Leydig, Voit & Mayer, Ltd.
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인용정보 |
피인용 횟수 :
16 인용 특허 :
12 |
초록
▼
A food processing device has a housing with a lid, a rotatable attachment (e.g., a basket or beater) in the housing and a drive mechanism in the lid for rotating the attachment to process food in the housing. The drive mechanism has a manual actuator and a gear train for transmitting a driving force
A food processing device has a housing with a lid, a rotatable attachment (e.g., a basket or beater) in the housing and a drive mechanism in the lid for rotating the attachment to process food in the housing. The drive mechanism has a manual actuator and a gear train for transmitting a driving force from the actuator to rotate the attachment. The actuator lies on an outer surface of the lid and is movable along the lid surface in opposite directions between two positions to rotate the attachment in a single direction. A ratchet assembly in driving engagement with the gear train transmits a rotational drive in only a single direction. A braking mechanism for braking the attachment, includes a manual operator and two braking shoes for movement by the operator to brake the attachment by friction.
대표청구항
▼
The invention claimed is: 1. A food processing device comprising: a housing having a lid; an attachment supported in the housing for rotation about an axis of rotation; and a drive mechanism supported by the lid for rotating the attachment to process food in the housing, wherein the drive mechanism
The invention claimed is: 1. A food processing device comprising: a housing having a lid; an attachment supported in the housing for rotation about an axis of rotation; and a drive mechanism supported by the lid for rotating the attachment to process food in the housing, wherein the drive mechanism comprises a manually operable actuator, a drive transmission system coupling the actuator to the attachment to transmit a driving force applied to the actuator to rotate the attachment, the actuator lying on an outer surface of the lid and being movable along the outer surface of the lid in opposite directions, between first and second positions, to rotate the attachment in a single direction of rotation, wherein the lid includes an abutment raised from the outer surface of the lid and located so that the actuator is closer to the abutment in the second position of the actuator than in the first position of the actuator, the abutment thereby providing a support facilitating one-handed operation of the actuator; and a first spring resiliently biasing the actuator towards the first position and returning the actuator to the first position upon release of the actuator. 2. The food processing device as claimed in claim 1, wherein the outer surface of the lid extends transversely of the axis of rotation. 3. The food processing device as claimed in claim 2, wherein the outer surface of the lid extends at substantially right angles to the axis of rotation. 4. The food processing device as claimed in claim 1, wherein the abutment is located within a periphery of the outer surface of the lid. 5. The food processing device as claimed in claim 1, wherein the actuator is supported for pivotal movement in opposite directions between the first and second positions. 6. The food processing device as claimed in claim 5, wherein the actuator is elongate and is pivotable about a first end of the actuator, the first end being in driving engagement with the drive transmission system. 7. The food processing device as claimed in claim 1, wherein the actuator is supported for linear movement in opposite directions between the first and second positions. 8. The food processing device as claimed in claim 7, wherein the actuator includes a rack in driving engagement with the drive transmission system. 9. The food processing device as claimed in claim 1, wherein the drive transmission system comprises a train of gears. 10. The food processing device as claimed in claim 1, wherein the attachment comprises a basket having a lid engageable by the drive mechanism for rotation to spin water from food in the basket. 11. The food processing device as claimed in claim 1, wherein the attachment comprises an agitator engageable by the drive mechanism for rotation to agitate food in the housing. 12. The food processing device as claimed in claim 1, wherein the drive mechanism includes a ratchet assembly in driving engagement with the drive transmission system for transmission of rotational drive only in the single direction from the actuator to the attachment upon movement of the actuator from the first position to the second position. 13. The food processing device as claimed in claim 12, wherein the ratchet assembly is provided between the drive transmission system and the attachment. 14. The food processing device as claimed in claim 12, wherein the ratchet assembly comprises a ratchet member and at least one pawl co-operable with the ratchet member, the ratchet member and the at least one pawl being associated with the attachment, and with a trailing end member of the drive transmission system, respectively. 15. The food processing device as claimed in claim 14, wherein the ratchet member has a circular arrangement of skew teeth surrounding the at least one pawl for engagement to transmit a driving force. 16. The food processing device as claimed in claim 15, wherein the at least one pawl is hinged for free pivotal movement. 17. The food processing device as claimed in claim 15, wherein the ratchet assembly includes at least two pawls arranged symmetrically about an axis of rotation of the ratchet member. 18. The food processing device as claimed in claim 17, wherein the ratchet assembly includes a carrier having opposite parts at each of which one of the pawls is hinged. 19. The food processing device as claimed in claim 18, wherein the trailing end member of the drive transmission system includes the carrier. 20. The food processing device as claimed in claim 12, wherein the attachment comprises a basket having a lid engageable by the ratchet assembly for rotation to spin water from food in the basket. 21. The food processing device as claimed in claim 12, wherein the attachment comprises an agitator engageable by the ratchet assembly for rotation to agitate food in the housing. 22. The food processing device as claimed in claim 1, including a braking mechanism for braking rotation of the attachment, the braking mechanism comprising a manual operator and at least one braking member for movement by the manual operator to brake rotation of the attachment. 23. The food processing device as claimed in claim 22, wherein the braking mechanism is housed inside the lid, with the manual operator exposed on the outer surface of the lid. 24. The food processing device as claimed in claim 22, wherein the manual operator lies on the outer surface of the lid and is movable along the outer surface of the lid. 25. The food processing device as claimed in claim 22, including a second spring resiliently biasing the at least one braking member into an inoperative position, the braking member being movable by the operator against the bias of the second spring to an operative position to brake rotation of the attachment. 26. The food processing device as claimed in claim 22, wherein the drive mechanism includes a drive member for coupling with the attachment to rotate the attachment, the at least one braking member being engageable with the drive member to brake rotation of the attachment. 27. The food processing device as claimed in claim 26, wherein the drive mechanism includes a ratchet assembly in driving engagement with the drive transmission system for transmission of rotational drive only in the single direction from the actuator to the attachment upon movement of the actuator from the first position to the second position. 28. The food processing device as claimed in claim 27, wherein the ratchet assembly comprises a ratchet member and at least one pawl co-operable with the ratchet member, the ratchet member and the at least one pawl being associated with the attachment and a trailing end member of the drive transmission system, respectively. 29. The food processing device as claimed in claim 27, wherein the ratchet member has a circular periphery which the at least one braking member engages to brake rotation of the attachment. 30. The food processing device as claimed in claim 29, wherein the braking mechanism includes two braking members disposed on opposite sides of the ratchet member. 31. The food processing device as claimed in claim 26, wherein the attachment comprises a basket having a lid engageable by the drive member for rotation to spin water from food in the basket. 32. The food processing device as claimed in claim 26, wherein the attachment comprises an agitator engageable by the drive member for rotation to agitate food in the housing. 33. A food processing device comprising: a housing having a lid; an attachment supported in the housing for rotation about an axis of rotation; a drive mechanism for rotating the attachment to process food in the housing, wherein the drive mechanism comprises a manually operable actuator, a drive transmission system coupling the actuator to the attachment to transmit a driving force from the actuator to rotate the attachment, and a braking mechanism for braking rotation of the attachment, the braking mechanism comprising a manual operator and at least one braking member for movement by the manual operator to brake rotation of the attachment by friction, wherein the drive mechanism includes a drive member for coupling with the attachment to rotate the attachment, and the at least one braking member engages the drive member to brake rotation of the attachment; and a first spring resiliently biasing the actuator towards the first position and returning the actuator to the first position upon release of the actuator. 34. The food processing device as claimed in claim 33, wherein the braking mechanism is housed inside the lid, with the manual operator exposed on an outer surface of the lid. 35. The food processing device as claimed in claim 33, wherein the manual operator lies on an outer surface of the lid and is movable along the outer surface of the lid. 36. The food processing device as claimed in claim 33, including a second spring resiliently biasing the at least one braking member into an inoperative position, the braking member being movable by the operator against the bias of the spring to an operative position to brake rotation of the attachment. 37. The food processing device as claimed in claim 33, wherein the drive mechanism includes a ratchet assembly in driving engagement with the drive transmission system for transmission of rotational drive in only a single direction from the actuator to the attachment. 38. The food processing device as claimed in claim 37, wherein the ratchet assembly comprises a ratchet member and at least one pawl co-operable with the ratchet member, the ratchet member and the at least one pawl being associated with the attachment and a trailing end member of the drive transmission system, respectively. 39. The food processing device as claimed in claim 38, wherein the ratchet member has a circular periphery upon which the at least one braking member is engageable to brake rotation of the attachment. 40. The food processing device as claimed in claim 39, wherein the braking mechanism includes two braking members disposed on opposite sides of the ratchet member. 41. The food processing device as claimed in claim 33, wherein the actuator and the manual operator are separate devices. 42. The food processing device as claimed in claim 33, wherein the actuator and the manual operator include a unitary device movable in a first direction to rotate the attachment and in a second direction, opposite the first direction, to brake rotation of the attachment. 43. The food processing device as claimed in claim 33, wherein the attachment comprises a basket having a lid engageable by the drive member for rotation to spin water from food in the basket. 44. The food processing device as claimed in claim 33, wherein the attachment comprises an agitator engageable by the drive member for rotation to agitate food in the housing. 45. The food processing device as claimed in claim 22, wherein the actuator and the manual operator are separate devices. 46. The food processing device as claimed in claim 22, wherein the actuator and the manual operator include a unitary device movable in a first direction to rotate the attachment and in a second direction, opposite the first direction, to brake rotation of the attachment.
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