| 摘要 |
PURPOSE:To increase the accuracy for channel selection by making the pressing operation of channel selection members and the operation of each part light and smooth, by regulating the center position in turnable range of a turning piece which makes a pair of laterally moving plates move transversally in relative direction within a specific range. CONSTITUTION:Either one pair of butt parts 4a, 4b or parts to be butted 35a, 35b is formed with a slope, and a pair of laterally moving plates 19a, 19b are moved transversally in a relative direction when one butt part is butted to one part to be butted by the slide of a channel selection member 1. Further, when a pair of butt parts are butted to a pair of parts to be butted, the slide of the channel selection member 1 is stopped for the channel selection. The center position n'' in the turnable range (l) of turning pieces 20, 21 which make the laterally moving plates of the tuner move transversally is positioned in two regions p, p' which oppose with each other in the direction of slope of the inclined ridges of the butt part or part to be butted, out of the regions sectioned with a horizontal line (n) which passes through the center point of turning and extends in the lengthwise direction of the laterally moving plates and a vertical line (n') orthogonal to this line. |
