A gear arrangement includes a rack, a gear and a flexible member. The rack includes a plurality of teeth. The gear is configured to be engaged with the rack through the teeth. The flexible member is adjacent to an end of the rack. The flexible member is configured to rotate the gear.

A domestic appliance device, in particular a domestic refrigeration appliance device, has an appliance body which defines at least one storage space, at least one insertion unit which is movable at least partially parallel to a direction of insertion into the storage space and parallel to a direction of extension out of the storage space, and at least one coupling unit which couples the insertion to the appliance body. The coupling unit has at least one roller rail and at least one roller element cooperating with the roller rail. In order to achieve greater ease of operation, the roller element is fastened to the appliance body.

A rack-and-pinion mechanism for a drawer assembly of an enclosure includes first and second racks and first and second pinions. The pinions are engaged with the racks via pinion teeth and rack teeth. The pinions are coaxially aligned and rotatable about a rotational axis that translates as the pinions are rotated and translate along the racks. The rack-and-pinion mechanism further includes a timing bar having a first end coupled to the first pinion and a second end coupled to the second pinion. A first pin is inserted into at least one of the first pinion and the first end of the timing bar. A second pin is inserted into at least one of the second pinion and the second end of the timing bar. The pins are configured to substantially inhibit translational movement of the timing bar relative to the pinions along the rotational axis.

A driving mechanism includes a first elastic member, a first locking device, a second elastic member and a second locking device. The first locking device is configured to allow the elastic member to release a first elastic force in an unlocking state. The second locking device is connected to the second elastic member. When a first furniture part is moved a predetermined distance relative to a second furniture part from an open position toward a retracted position, the first locking member is switched from the unlocking state to a locking state in order to accumulate the first elastic force, and the first furniture part is moved from the open position to the retracted position in response to a second elastic force of the second elastic member.

A returning mechanism and a slide rail assembly using the returning mechanism, which has a synchronous member disposed between a first engagement feature and a second engagement feature. When the synchronous member is displaced between the first end of the first engagement feature and the stroke of the second engagement feature, the synchronous member continues to abut against a first elastic body until the synchronous member is displaced to the second end of the second engagement feature to complete the return. When the synchronous member is between the stroke of the first engagement feature and the second end of the second engagement feature, the synchronous member continues to rest against the second elastic structure until the synchronous member moves to the first end of the first engagement feature to complete the return.

The refrigerator according to the present invention includes the multi-stage rack-and-pinion assembly including at least three gear racks that are sequentially retracted and extended in the front-rear direction, thereby securing the sufficient extension distance of the drawer assembly even within the narrow storage compartment of the refrigerator.