| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a structure which prevents idling of a fixing screw remaining in a separation part with a very simple constitution to prevent the loss due to drop-out. SOLUTION: A first pedal us provided with a turning shaft 23 for a second beater 22, and the second beater turning shaft 23 is connected to an operating shaft 28, which is turned and operated by the second pedal arranged separately from the first pedal, by a connection rod member 40. This double drum pedal is so constituted that it can be freely separated by loosening fixing screws 47 and 44 in separation parts S1 and S2, and fixing screws 47 and 44 are attached through elastic seat plates 50 and 60 provided with idling prevention parts which are press-fitted to their screw parts 47a and 44a from sides and consist of insertion apertures and screw enclosing parts which are connected to the insertion apertures and enclose these screw parts 47a and 44a.</p> |
