| 摘要 |
PURPOSE: To accurately decide the position of a control button by forming a returning means with two side belt bodies contacted with a T part side wing. CONSTITUTION: A support body SU includes a flat T-shaped opening ET on its full thickness and four belt bodies L1, LC1, LC2 and L2 are provided in a control button TO. The belt bodies are disposed, specifically two each, that is, L1, LC1, LC2 and L2 are placed orthogonal to the flat surface SP of the control button, and these are made of elastic materials for providing certain flexibility to the fat surface SP of the control button. The support body also includes a hemicircular hollow part SP2 provided in the thickness thereof on the T-shaped leg part. The hollow part SP" is provided such that the two hemicircular elements, the hollow part SP and a stab SP1 form, when the control button is inserted into the support body, the pivot for the control button, the pivot and a catch BE forma control button holding means and a positioning means in a stop position after reaching a holding position. Thus, the control button is accurately positioned and mechanical noises and vibration are prevented. |
