US 12,270,229 B2
Rotation device for a turnstile
Chun-Han Lin, New Taipei (TW); and Yung-Chih Tseng, New Taipei (TW)
Assigned to FOSITEK CORPORATION, New Taipei (TW)
Filed by FOSITEK CORPORATION, New Taipei (TW)
Filed on Jan. 3, 2023, as Appl. No. 18/149,555.
Claims priority of application No. 111133915 (TW), filed on Sep. 7, 2022.
Prior Publication US 2024/0076906 A1, Mar. 7, 2024
Int. Cl. E05B 47/00 (2006.01); E05B 65/00 (2006.01); E06B 11/08 (2006.01)
CPC E05B 47/0046 (2013.01) [E05B 65/00 (2013.01); E06B 11/08 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A rotation device adapted for a turnstile, comprising:
a base seat;
an axle unit extending into the base seat; and
a lock unit including a lock plate that is sleeved on the axle unit, and a lock member that is disposed on the base seat, the lock plate being formed with a first lock groove, the lock member having a lock portion that is operable to move into the first lock groove, the lock plate being locked by the lock portion of the lock member when the lock portion moves into the first lock groove, so that the axle unit and the lock plate are not rotatable relative to the base seat;
wherein the lock unit further includes a switch plate that is located above the lock plate and that is slidably sleeved on the axle unit, the lock plate being further formed with a second lock groove that is angularly spaced apart from the first lock groove, the second lock groove being in the form of a quarter circular arc, the lock plate being operable to rotate relative to the axle unit and the switch plate so as to align a selected one of the first lock groove and the second lock groove with the lock portion of the lock member.