To provide a screw falling-out control structure capable of restraining a screw from falling-out from a screw insertion hole in spite of using an all-purpose screw when the screw is separated from a target while a shaft of the screw is inserted into the screw insertion hole.
The screw falling-out control structure is arranged on a cover member 26 rotatably formed between a blocking position for blocking a sensor storage section 24 of a carriage 16 and an opening position for opening the sensor storage section 24. The screw falling-out control structure includes the screw insertion hole for inserting the shaft of an installing screw 27 when the cover member 26 is installed on the carriage 16 with the installing screw 27, and a control section 31 for controlling falling-out from the screw insertion hole when the installing screw 27 is separated from the carriage 16 while the shaft is inserted into the screw insertion hole. The screw insertion hole is arranged on the cover member 26 so as to make the shaft of the installing screw 27 detachable, and the control section 31 is integrated with the cover member 26 so as to face the screw insertion hole.
HIRUMA DAISUKE
HAMANO RYO
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Makoto Onda
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