Tool-free front attachment fitting
AssigneeHäfele Berlin GmbH & Co KG
InventorRobert Birkner
Life of this patent
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Abstract
A fitting part for tool-free fastening in a bore in a panel includes a radially outwardly expandable expansion sleeve for insertion into the bore and a fitting housing, which is mounted in the expansion sleeve so as to be rotatable about an axis of rotation between a starting rotary position and a final rotary position, has a lever arm which is arranged outside the expansion sleeve and has a latching device, and has an expansion contour which is arranged inside the expansion sleeve and, upon rotation of the fitting housing in the expansion direction of rotation from the starting rotary position to the final rotary position, expands the expansion sleeve radially outwards.
Claims16
A fitting comprising two identical fitting parts for tool-free fastening in a-bores in a panel, each fitting part comprising:
- a radially outwardly expandable expansion sleeve for insertion into the bore;
- and
- a fitting housing mounted in the expansion sleeve configured to be rotatable about an axis of rotation between a starting rotary position and a final rotary position;
- the fitting housing having a lever arm transversely extending therefrom which is arranged outside the expansion sleeve and has a latching device disposed at a distal end of the lever arm;
- the fitting housing having an expansion contour which is arranged inside the expansion sleeve;
- an attachment element fixedly attached directly to and extending from a proximal end of the lever arm, wherein the fitting housing and the attachment element are arranged opposite to each other with respect to the lever arm, and wherein the attachment element comprises a rod or physical structure configured for attaching to a further element;
- and
- wherein upon rotation of the fitting housing about the axis of rotation in an expansion direction of rotation from the starting rotary position to the final rotary position, the expansion sleeve is configured to expand radially outwards;
- wherein, when the two fitting parts are arranged in a manner rotated through 180° with respect to one another, their lever arms are oriented along a line, the free ends of the two lever arms bear against one another at their end faces, and the latching devices of the two fitting parts matingly engage with one another.
A fitting comprising two separate fitting parts, which cooperate with each other in a mounted state, for tool-free fastening in a respective bore in a panel, the fitting parts each comprising:
- a radially outwardly expandable expansion sleeve for insertion into the bore;
- a fitting housing mounted in the expansion sleeve so as to be rotatable about an axis of rotation between a starting rotary position and a final rotary position;
- the fitting housing having a lever arm transversely extending therefrom which is arranged outside the expansion sleeve and has a latching device disposed at a distal end of the lever arm;
- the fitting housing having an expansion contour which is arranged inside the expansion sleeve;
- wherein upon rotation of the fitting housing about the axis of rotation in an expansion direction of rotation from the starting rotary position to the final rotary position, the expansion sleeve expands radially outwards;
- wherein, when the two separate fitting parts are arranged in a manner rotated through 180° with respect to one another, their lever arms are oriented along a line, the free ends of the two lever arms bear against one another at their end faces, and the latching devices of the two fitting parts cooperate with one another;
- wherein the two fitting parts are identical;
- wherein one fitting part is inserted by way of its expansion sleeve into the one bore and the other fitting part is inserted by way of its expansion sleeve into the other bore, each fitting part being rotated into the final rotary position, and wherein, in the final rotary positions of the two fitting parts, the two fitting parts are arranged in a manner rotated through 180° with respect to one another, their lever arms are oriented along a line, the free ends of the two lever arms bear against one another at their end faces, and the latching devices of the two fitting parts cooperate with one another;
- and
- wherein each of the latching devices has a latching protrusion and a latching recess, and the latching protrusion of the one latching device is configured to engage in the latching recess of the other latching device and vice versa.
Dependencies are inferred from the claim text.