| 摘要 |
PROBLEM TO BE SOLVED: To produce this transmitter/receiver falling preventing structure manufactured at low costs and in a short term of delivery by improving assembly workability. SOLUTION: A transmitter/receiver 2 connected through a spiral code 3 to a case body 1 is constituted so as to be prevented from falling on a floor. In this case, a ball chain 4 is fixed along the spiral code to both edge parts 30 and 30 of the spiral code, and the edge parts of the chain are respectively held by holding fittings 6 and 6 so that the spiral code can be prevented from being extended when the transmitter/receiver falls. The holding fittings are respectively fit to a spiral code fitting part 20 of the transmitter/receiver and a spiral code fitting part 10 of the case main body. Also, the spiral code fitting part of the transmitter/receiver and the spiral code fittings part of the case main body are provided with bushings 5 to be fit to ribs 21 and 11 of the transmitter/receiver and the case main body at the both edge parts of the spiral code, and the holding fittings are provided with recessed parts 6c to be respectively fit to the ribs of the transmitter/receiver and the case body. |
