초록 ▼

The present invention is directed to a unique device for mounting electrical apparatus to a wall panel, wherein the device includes a main body portion having a cavity for holding components of the electrical apparatus and a pillar-shaped portion attached to the main body portion and extending throu

The present invention is directed to a unique device for mounting electrical apparatus to a wall panel, wherein the device includes a main body portion having a cavity for holding components of the electrical apparatus and a pillar-shaped portion attached to the main body portion and extending through an opening in the wall panel. A free end of the pillar-shaped portion includes a plurality of outwardly protruding steps which overlap the wall panel, with a first set of the steps having a first axial length and a second set of the steps having a second, shorter axial length. A biasing member extends between the main body portion and the wall panel and biases the wall panel into contact with only the first set of steps, creating a gap between the wall panel and the second set of steps. A cover member surrounds the free end of the pillar-shaped portion and extends into the gap, with the second set of steps biasing the cover into contact with the wall panel.

대표청구항 ▼

A device for mounting on a supporting panel means comprising: an electrical apparatus enclosed in a casing of an insulating material; said casing including a main body portion with a cavity containing component elements of said electrical apparatus and a hollow pillar-shaped portion extending from o

A device for mounting on a supporting panel means comprising: an electrical apparatus enclosed in a casing of an insulating material; said casing including a main body portion with a cavity containing component elements of said electrical apparatus and a hollow pillar-shaped portion extending from one external side of said main body portion, the hollow portion of said pillar-shaped portion being formed along a longitudinal axis of said pillar-shaped portion and communicating with said cavity of said main body; said hollow pillar-shaped portion having its free end divided into a plurality of segments by a plurality of slots extending along said axis from said free end; a first and a second set of segments in a predetermined number being selected among said plurality of segments, each of said first and said second set of segments having its free end integrally formed with a portion protruded outward thereby to form a step on the opposite end of said protruded portion to said free end, said protruded portion of each of said first and said second set of segments being arranged such that when said free end of said hollow pillar-shaped portion is registered with and pressed against a mounting hole preformed in the supporting panel means, in use, in order to fix said casing onto said panel means, said protruded portion will be pressed inwardly by the periphery of said mounting hole, thereby causing the segment associated with said protruded portion to bend elastically inward and such that said segment associated with said protruded portion will be restored to its original position after said protruded portion has passed through said mounting hole; bias means located between said one external side of said main body and said step of each of said first set of segments for exerting a force to keep away said one external side of said main body and said supporting panel means from each other after said protruded portion of each of said first and said second set of segments has passed through said mounting hole in use, whereby said supporting panel means will be pressed into contact with said step of each of said first set of segments; and the length of said protruded portion of each of said second set of segments along said axis being shorter than that of said protruded portion of each of said first set of segments so that, in use, when said supporting means is pressed into contact with the step of each of said first set of segments, a gap will be formed between the supporting panel means and the step of each of said second set of segments.