[특허]Automatic locking device for coffee brewing apparatus

Wang,Dong lei

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Automatic locking device for coffee brewing apparatus

국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A47J-031/00
미국특허분류(USC)	099/280; 099/295; 099/302.R
출원번호	US-0283645 (2005-11-21)
등록번호	US-7322274 (2008-01-29)
우선권정보	CN-2005 2 0062845 U(2005-08-15)
발명자 / 주소	Wang,Dong lei
출원인 / 주소	Wang,Dong lei
대리인 / 주소	Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
인용정보	피인용 횟수 : 6 인용 특허 : 13

초록

This invention provides a locking device for coffee brewing apparatus of an automatic coffee maker. With this invention, when the top cover is closed, the brewing chamber can be locked and sealed at the same time automatically, while after coffee is brewed, the brewing chamber can be unlocked automatically, which provides easy operation that is convenient for users.

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What is claimed is: 1. A locking device for a coffee brewing apparatus of an automatic coffee maker, the automatic coffee maker including a coffee maker body, a control circuit; and a top cover pivotally connected on top of said coffee maker body about a pivot axis, enabling the coffee maker to be opened and closed; said locking device comprising: a brewing chamber cover fixed at a bottom of said top cover, with at least one locking pin at a periphery of the brewing chamber cover, integral therewith; a brewing chamber body fixed in the coffee maker body; a brewing chamber seat in the coffee maker body disposed around said brewing chamber body and rotatable around a vertical central axis of said brewing chamber body; at least one latching member extending inwardly from said brewing chamber seat, whereby, when said brewing chamber seat is rotated around said vertical central axis, said locking device assumes one of an unlocked position and a locked position, wherein, in the unlocked position, the brewing chamber cover is rotatable about the pivot axis away from the brewing chamber seat, and in the locked position, said brewing chamber seat is locked in a vertical direction with said brewing chamber cover, and said brewing chamber cover can not be rotated about said pivot axis away from said brewing chamber seat; a motor installed in said coffee maker body controlled by said control circuit; a motion transmission mechanism disposed between said brewing chamber seat and said motor to enable said motor to drive said brewing chamber seat to rotate around said vertical central axis between the unlocked position and the locked position; a first sensor for detecting when the locking device is in the unlocked position and a second sensor for detecting when the locking device is in the locked position, which are both connected with said control circuit; wherein, when coffee is to be brewed, said top cover is closed on said coffee maker body, said motor is started by pressing down a start button, whereby under the control of said control circuit said brewing chamber seat is driven via said motion transmission mechanism to rotate about said vertical central axis towards the locked position; when said brewing chamber seat arrives at the locked position, the second sensor is triggered, and said motor is stopped under control of the control circuit, thereby locking said brewing chamber cover with said brewing chamber seat, so as to form a sealed brewing chamber; and wherein, after coffee is brewed, said motor is re-started under the control of the control circuit, and said brewing chamber seat is driven via said motion transmission mechanism to rotate about said vertical central axis towards the unlocked position; when said brewing chamber seat arrives at the unlocked position, the first sensor is triggered, and said motor is stopped under control of the control circuit, thereby unlocking said brewing chamber cover and enabling said brewing chamber cover to be rotated about said pivot axis away from said brewing chamber seat. 2. The locking device according to claim 1, further comprising a sealing ring installed at the periphery of said brewing chamber cover, so that, when said brewing chamber cover is engaged with said brewing chamber seat, said sealing ring is accommodated at the inner side of the periphery of said brewing chamber seat. 3. The locking device according to claim 2, wherein said at least one locking pin is installed at the periphery of the brewing chamber cover outside the sealing ring. 4. The locking device according to claim 1, wherein said motor comprises a step motor or a synchronous motor. 5. The locking device according to claim 1, further comprising a moveable brewing chamber installation disposed inside said brewing chamber body, and removable for different purposes. 6. The locking device according to claim 1, wherein said at least one locking pin is formed integrally with the brewing chamber cover. 7. The locking device according to claim 1, wherein said at least one latch is formed integrally with the brewing chamber seat. 8. The locking device according to claim 1, wherein said motion transmission mechanism includes a pinion and a driven gear, and wherein said driven gear is fixed at the periphery of the brewing chamber seat. 9. The locking device according to claim 8, wherein said driven gear is formed integrally with said brewing chamber seat. 10. The locking device according to claims 8, wherein said first and second sensors are disposed on opposite sides of said driven gear; whereby when said driven gear rotates and arrives at the locked position, it touches the second sensor, which sends a locking signal to the control circuit; and whereby when the driven gear rotates and arrives at the unlocked position, it touches the first sensor, which sends an unlocking signal to the control circuit. 11. The locking device according to claim 1, wherein both of the first and second sensors comprise a micro switch. 12. The locking device according to claim 1, further comprising an open button for the top cover, and a retarding mechanism including a damper and a damping gear, installed on the coffee maker body.

이 특허에 인용된 특허 (13)

이 특허를 인용한 특허 피인용횟수: 6

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Automatic locking device for coffee brewing apparatus

초록

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이 특허에 인용된 특허 (13)

이 특허를 인용한 특허 피인용횟수: 6

IPC 상위 출원인

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IPC 상세정보(version : 201201)

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특허 상세정보

Automatic locking device for coffee brewing apparatus

초록

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이 특허에 인용된 특허 (13)

이 특허를 인용한 특허 피인용횟수: 6

IPC 상위 출원인

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

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