Patent ID: 6866542

Claim:
A combination of an electrical device and a retainer clip for removably retaining the device on a panel through an open window in the panel by holding the panel between the device and the retainer clip, wherein the device comprises a device body, a device projecting portion projecting from a front surface of the device body, and two engaging elements projecting from the front surface at both sides of the device projecting portion opposite to each other in a first direction, wherein the panel is provided with the open window through which the device projecting portion and the engaging elements project in a second direction perpendicular to the first direction, and wherein the retainer clip is a plate member, which is larger than the open window and has a fitting space for receiving the device projecting portion and the two engaging elements together fit therethrough, the fitting space being defined by space edges comprising at least three first, second and third sides to thereby surround the device projecting portion and the two engaging elements together over at least three sides, the first and second sides extend in a third direction perpendicular to the first and the second directions outsides of the two engaging elements opposite to each other in the first direction, the third side extends in the first direction at one side of the device projecting portion in the third direction, and the retainer clip has locking tabs projecting into the fitting space from the space edges of the fitting space in the plate member and in the same plane of the plate member for engaging with corresponding ones of the engaging elements of the device, and wherein, in order to retain the device through the open window in the panel by the retainer clip, the retainer clip is positioned on the panel at a first position where the retainer clip surrounds the device projecting portion and the engaging elements together and to hold the panel between the device body and the retainer clip, and is then slid in the first direction into a second position where the locking tabs engage with corresponding ones of the engaging elements to thereby prevent the retainer clip from moving to apart from the panel and the device in the second direction, whereby the electrical device is retained on the panel through the open window in the panel, while the panel is secured between the retainer clip and the device body.