US 12,241,303 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. 18/149,459.
Claims priority of application No. 111133913 (TW), filed on Sep. 7, 2022.
Prior Publication US 2024/0076939 A1, Mar. 7, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. E06B 11/08 (2006.01)
CPC E06B 11/08 (2013.01) 14 Claims
OG exemplary drawing
 
1. A rotation device adapted for a turnstile, comprising:
a base seat;
an axle unit including an upper axle that extends into the base seat, and a lower axle that extends into the base seat and that is located below the upper axle;
a lower rotating module including a lock unit, and an outer barrel that is disposed in the base seat and that is penetrated by the lower axle, the lock unit including a lock plate that is sleeved on the lower axle, and a lock member that is mounted to 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; and
an upper rotating module disposed in the base seat and co-rotatably sleeved on the upper axle, the upper rotating module being able to be driven by the upper axle to rotate relative to the lower rotating module;
wherein the upper rotating module includes an overload rotating bracket that is received in the outer barrel and that is penetrated by the upper axle, an inner surface of the outer barrel being formed with two engaging grooves, the overload rotating bracket including two overload abutment wheel assemblies, and an overload resilient member that is located between the overload abutment wheel assemblies, the overload abutment wheel assemblies being able to respectively engage the engaging grooves of the outer barrel.