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1. (WO2018014391) DRAWING TYPE REEL MODULE

Pub. No.:    WO/2018/014391    International Application No.:    PCT/CN2016/094927
Publication Date: Fri Jan 26 00:59:59 CET 2018 International Filing Date: Sat Aug 13 01:59:59 CEST 2016
IPC: B65H 75/34
Applicants: QINGDAO GOERTEK TECHNOLOGY CO., LTD.
青岛歌尔声学科技有限公司
Inventors: TANG, Mingjun
唐明军
Title: DRAWING TYPE REEL MODULE
Abstract:
A drawing type reel module, provided with a rotating wheel (6); the rotating wheel (6) is connected to a spiral spring (5), a wire (7) is winded on the rotating wheel (6), a stop mechanism is provided to cooperate with the rotating wheel (6); the stop mechanism comprises a function rail, a ball (3), and a rolling-assisting device; the function rail comprises a locking rail, a communicating rail (25) and circular rails (21, 22) which are connected to and combined with one another and are all of a groove-type and provided around the external circumference of the rotating wheel (6); the rolling-assisting device is provided thereon with a guide groove (91), two ends of the guide groove (91) are located on the upper side and the lower side of the external circumference of the rotating wheel (6), respectively; the guide groove (91) cooperates with the function rail to hold the ball (3), and the ball (3), following the rotation of the rotating wheel (6), rolls in the function rail to lock the rotation of the rotating wheel (6) or unlock the rotation of the rotating wheel (6). This invention reduces the thickness, in the direction of a rotating shaft, of the reel module, and is suitable for the use in a product of small thickness.