Door latch for an electrical household appliance
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E05C-003/14
A47L-015/42
D06F-039/14
E05B-017/00
E05B-047/06
E05C-005/00
E05C-019/02
출원번호
US-0295190
(2011-11-14)
등록번호
US-9107560
(2015-08-18)
우선권정보
DE-10 2010 051 518 (2010-11-16)
발명자
/ 주소
Bauriedl, Josef
출원인 / 주소
emz-Hanauer GmbH & Co. KGaA
대리인 / 주소
Deleault, Esq., Robert R.
인용정보
피인용 횟수 :
2인용 특허 :
11
초록▼
A door latch for an electrical household appliance includes a closing spring arrangement which is tensioned in an open position of the door latch and relaxes upon closing of the door, and a gripping unit which grips a closing element upon closing of the door and releases it again upon opening of the
A door latch for an electrical household appliance includes a closing spring arrangement which is tensioned in an open position of the door latch and relaxes upon closing of the door, and a gripping unit which grips a closing element upon closing of the door and releases it again upon opening of the door. The gripping unit in the open position of the door latch is in blocking engagement with a blocking element. The closing element upon the closing of the door causes a rotary movement of the gripping unit about an axis of rotation where the gripping unit comes out of blocking engagement with the blocking element. The gripping unit has a base body bearing at least one supporting projection, projecting coaxially with respect to the axis of rotation, for supporting the gripping unit.
대표청구항▼
1. A door latch for an electrical household appliance, the door latch comprising: a closing spring arrangement which is tensioned in an open position of the door latch and relaxes upon closing of the door;a gripping unit which grips a closing element upon closing of the door and releases it again up
1. A door latch for an electrical household appliance, the door latch comprising: a closing spring arrangement which is tensioned in an open position of the door latch and relaxes upon closing of the door;a gripping unit which grips a closing element upon closing of the door and releases it again upon opening of the door;the gripping unit in the open position of the door latch being in blocking engagement with a blocking element owing to the force of the closing spring arrangement and thus preventing the relaxation of the closing spring arrangement;the closing element upon the closing of the door causing a rotary movement of the gripping unit about an axis of rotation;the gripping unit upon this rotary movement coming out of blocking engagement with the blocking element and thereby enabling a relaxation of the closing spring arrangement;the relaxation of the closing spring arrangement causing a subsequent pull-shut movement of the gripping unit, the pull-shut movement including a translatory travel of the gripping unit transverse to the axis of rotation;the gripping unit having a base body with a gripping section for gripping engagement with the closing element, the base body having at least one supporting projection that directly engages the closing spring arrangement for supporting the gripping unit and wherein the at least one supporting projection projects coaxially with respect to the axis of rotation;wherein the closing spring arrangement has a spring active axis which always intersects the supporting projection. 2. The door latch according to claim 1, wherein the at least one supporting projection projects axially on both sides from the base body, and the closing spring arrangement has a spring active axis assigned to each supporting projection and intersecting the respective supporting projection. 3. The door latch according to claim 1, further comprising a guiding arrangement for guiding the supporting projection during the pull-shut movement of the gripping unit. 4. The door latch according to claim 3, wherein the guiding arrangement forms a rectilinear guiding path for the supporting projection. 5. The door latch according to claim 3, wherein the guiding arrangement has a guiding channel or a guiding slot, in to which the supporting projection plunges for its guidance. 6. The door latch according to claim 1, wherein the closing spring arrangement is supported on the supporting projection without interposition of further elements. 7. The door latch according to claim 1, wherein the closing spring arrangement is supported on the supporting projection with interposition of an intermediate member, the supporting projection being radially unsupported in relation to the intermediate member. 8. The door latch according to claim 1, wherein the supporting projection is connected in a rotationally fixed manner to the base body. 9. The door latch according to claim 1, wherein the supporting projection (38) is of peg-like form. 10. The door latch according to claim 1, wherein the supporting projection is formed by a pin body which is separate from the base body and is inserted into a pin receptacle of the base body. 11. The door latch according to claim 10, wherein the base body is produced from a plastics material and the pin body is formed by a metal pin. 12. The door latch according to claim 1, wherein the supporting projection is formed integrally with the base body. 13. The door latch according to claim 12, wherein the supporting projection is reinforced by a metal reinforcing pin surrounded by the material of the supporting projection. 14. The door latch according to claim 1, wherein the at least one supporting projection projects axially on both sides from the base body and the closing spring arrangement comprises in each case one helical compression spring assigned to each supporting projection. 15. The door latch according to claim 1, further comprising a latch housing having at least one guiding shaft formed therein for receiving at least a part of a helical spring associated with the closing spring arrangement. 16. The door latch according to claim 15, further comprising a guiding formation for guiding the supporting projection upon the pull-shut movement of the gripping unit is formed on the guiding shaft. 17. The door latch according to claim 4, wherein the guiding arrangement has a guiding channel or a guiding slot in to which the supporting projection plunges for its guidance. 18. The door latch according to claim 2 further comprising a guiding arrangement for guiding the supporting projection during the pull-shut movement of the gripping unit. 19. A door latch for an electrical household appliance, the door latch comprising: a closing spring arrangement which is tensioned in an open position of the door latch and relaxes upon closing of the door;a gripping unit which grips a closing element upon closing of the door and releases it again upon opening of the door;a guiding arrangement for guiding a supporting projection during the pull-shut movement of the gripping unit;the gripping unit in the open position of the door latch being in blocking engagement with a blocking element owing to the force of the closing spring arrangement and thus preventing the relaxation of the closing spring arrangement;the closing element upon the closing of the door causing a rotary movement of the gripping unit about an axis of rotation wherein the gripping unit has only one axis of rotation;the gripping unit upon this rotary movement coming out of blocking engagement with the blocking element and thereby enabling a relaxation of the closing spring arrangement;the relaxation of the closing spring arrangement causing a subsequent pull-shut movement of the gripping unit, the pull-shut movement including a translatory travel of the entire gripping unit in a linear direction transverse to the axis of rotation;the gripping unit having a base body with a gripping section for gripping engagement with the closing element, the base body having at least one supporting projection that projects coaxially with respect to the axis of rotation for supporting the gripping unitwherein the closing spring arrangement has a spring active axis which always intersects the supporting projection. 20. A door latch for an electrical household appliance, the door latch comprising: a closing spring arrangement, which is tensioned in an open position of the door latch and relaxes upon closing of the door, is supported on a supporting projection with interposition of an intermediate member, the supporting projection being radially unsupported in relation to the intermediate member;a gripping unit which grips a closing element upon closing of the door and releases it again upon opening of the door;the gripping unit in the open position of the door latch being in blocking engagement with a blocking element owing to the force of the closing spring arrangement and thus preventing the relaxation of the closing spring arrangement;the closing element upon the closing of the door causing a rotary movement of the gripping unit about an axis of rotation wherein the gripping unit has only one axis of rotation;the gripping unit upon this rotary movement coming out of blocking engagement with the blocking element and thereby enabling a relaxation of the closing spring arrangement;the relaxation of the closing spring arrangement causing a subsequent pull-shut movement of the gripping unit, the pull-shut movement including a translatory travel of the entire gripping unit in a linear direction transverse to the axis of rotation;the gripping unit having a base body with a gripping section for gripping engagement with the closing element, the base body having the supporting projection that projects coaxially with respect to the axis of rotation for supporting the gripping unitwherein the closing spring arrangement has a spring active axis which always intersects the supporting projection.
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이 특허에 인용된 특허 (11)
Kleefeldt Frank (Heiligenhaus DEX), Bolt for motor-vehicle door latch.
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