| 摘要 |
The invention relates to a device for return of buttons which can be pressed into a housing, this device comprising a leaf spring 50 interposed between a hole 56 of the housing and the ends of the buttons 28 and comprising convex, inward-curved parts bearing on the ends of the buttons 28, pressing-in of a button causing flattening of the corresponding inwardly-curved part 52 and elongation of the leaf spring bearing on the walls 60 of the housing, which prevents two buttons being simultaneously pushed in. The invention applies to control devices with buttons which can be pushed in. <IMAGE>
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