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1. US20110258835 - Fastening device and method for fastening an element in a keyhole-shaped cutout in a wall

Anmerkung: Text basiert auf automatischer optischer Zeichenerkennung (OCR). Verwenden Sie bitte aus rechtlichen Gründen die PDF-Version.

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Claims

1. A fastening device for fastening an element in a keyhole-shaped cutout in a wall, the keyhole-shaped cutout having a narrower opening and a wider opening, the fastening device comprising:
a retaining element having a first planar surface forming a first exterior planar surface of the fastening device, wherein in the fastened state of the fastening device, the first planar surface of the retaining element forming the first exterior planar surface of the fastening device is configured to directly contact and rest against a front side of the wall and at least partially cover an edge of the narrower opening of the keyhole-shaped cutout in the wall; and
a locking element integrally formed with the first planar surface of the retaining element, the locking element extending perpendicularly from the first exterior planar surface of the fastening device and having a catch hook at an end located away from the first exterior planar surface, wherein in the fastened state of the fastening device, the locking element is configured to extend from the front side of the wall to the back side of the wall, across the wider opening of the keyhole-shaped cutout in the wall, such that the catch hook locks against a back side of the wall to secure the first planar surface of the retaining element against the front side of the wall and prevent relative movement between the first planar surface of the retaining element and the front side of the wall;
wherein the locking element is at least partially enclosed by a protective element, and wherein the protective element is U-shaped around the locking element to cover at least the bottom surface of the locking element.
2. The fastening device as recited in claim 1, wherein the catch hook is formed from a flexible material.
3. The fastening device as recited in claim 1, wherein the protective element is U-shaped around the locking element to cover at least the bottom surface and the two lateral surfaces of the locking element.
4. The fastening device as recited in claim 3, wherein the catch hook is a one-way snap-in hook.
5. The fastening device as recited in claim 1, wherein the fastening device is formed in one piece from a plastic material.
6. The fastening device as recited in claim 1, further comprising:
at least one screw connection element separate from the retaining element, wherein in the fastened state of the fastening device, the at least one screw connection element is configured to press the retaining element against the wall in the region of the narrower opening.
7. A method for fastening a fastening device to a wall having a keyhole-shaped cutout, wherein the fastening device includes (i) a retaining element having a first planar surface forming a first exterior planar surface of the fastening device and (ii) a locking element integrally formed with the first planar surface of the retaining element, the locking element extending perpendicularly from the first exterior planar surface of the fastening device and having a catch hook at an end located away from the first exterior planar surface, and wherein the keyhole-shaped cutout in the wall includes a wider opening and a narrower opening connected to the wider opening, wherein the locking element is at least partially enclosed by a protective element, and wherein the protective element is U-shaped round the locking element to cover at least the bottom surface of the locking element, the method comprising:
inserting the locking element at least partially enclosed by the protective element through the wider opening of the keyhole-shaped cutout in the wall, from a front side of the wall to a back side of the wall, the retaining element at least partially covering an edge of the narrower opening of the keyhole-shaped cutout, and the first planar surface of the retaining element forming the first exterior planar surface of the fastening device directly contacting and resting against the front side of the wall;
locking the catch hook of the locking element against the back side of the wall in the region of the wider opening of the keyhole-shaped cutout to secure the first planar surface of the retaining element against the front side of the wall and prevent relative movement between the first planar surface of the retaining element and the front side of the wall; and
pressing the retaining element against the wall.
8. The method according to claim 7, wherein the protective element is U-shaped around the locking element to cover at least the bottom surface and the two lateral surfaces of the locking element.