Patent DE-102007025295-A1 (DE)
Title: Lock for domestic appliance such as a tumble dryer, a washing machine, a dishwasher/the like, has a moveable retaining element and an elastic element comprising a double leg spring acting on the retaining element with a force
Inventor: MUELLER HEINRICH
IPC: A47L15/42
Filed: 2007-05-30
Abstract: The lock (1) for domestic appliance such as a tumble dryer, a washing machine, a dishwasher or the like, has a moveable retaining element (3) that interacts with a bolt located on a closing element such as door, cover, flap or the like of the appliance in that the retaining element fixes the bolt in a first position and releases the bolt in a second position. The retaining element is designed in the manner of a rotary catch. An elastic element that comprises a double leg spring (5), acts on the retaining element with a force in the direction of the first position. The lock (1) for domestic appliance such as a tumble dryer, a washing machine, a dishwasher or the like, has a moveable retaining element (3) that interacts with a bolt located on a closing element such as door, cover, flap or the like of the appliance in that the retaining element fixes the bolt in a first position and releases the bolt in a second position. The retaining element is designed in the manner of a rotary catch. An elastic element that comprises a double leg spring (5), acts on the retaining element with a force in the direction of the first position. The retaining element has a recess (4) for the admission of the bolt, that the bolt is arranged out in the kind of a hook, and that further implements the recess to their respective adjustment of a kind of turning-sliding movement, pivoting movement or the like in movement of the retaining element between the first and the second position. The lock has a housing, and that the leg spring by means of a shaft (6), a base element, a stop or the like is stored in the housing. On the retaining element a first axle (7) is present, that the first axle is led in a guidance in the housing, and that further a leg of the double leg spring is hung up in each case at each side of the first axle supernatant at the retaining element. On the retaining element a further second axle, which is arranged spaced to the first axle is present, that the second axle in movement of the retaining element is led to the first position in an extension of the guidance, and that the second axle in the movement of the retaining element into the second position latches in a rest uptake connecting at the extension of the guidance, in such a manner that the force exerted by the leg spring is introduced into the housing. The leg spring is hung up by means of eyelet connecting the both legs of the leg spring, at the retaining element, that the retaining element in the movement between the first and second position interacts with a support rod, and that the support rod is fastened in the housing in such a manner that the force exerted by the leg spring is introduced into the housing. The retaining element with a form area turned away from the recess adjoins at the support rod, in such a manner that the recess in the movement of the retaining element is aligned between first and the second position, and that the support rod consists of a metal and/or the retaining element consists of a plastic. The lock further comprises a bolting device cooperating with the retaining element in such a manner that the bolting device in a first condition closes the movement of the retaining element between the two positions and in a second condition releases the movement of the retaining element between the two positions that the bolting device is controllable between the both conditions by means of electromagnets, and that further a tappet at the electromagnet (16) over W-formed window blind is effectively connected with the bolting device for reversal between the two conditions. A logic element is connected with the bolting device, in such a manner that it produces a switching signal and/or switches an electric circuit as a function of the condition of the bolting device.