Patent ID: 9021904
Filing Date: 2015-05-05
Classification: F16H,Y10T

Abstract:
1. An axial adjustment device comprising: a main body having a front end piece formed at a front end of the main body; a first slide seat and a second slide seat disposed in the main body; a first threaded rod and a second threaded rod disposed in the main body, each of the two threaded rods having a front end provided with a rod section, the rod sections extending through the front end piece; a body of the first threaded rod being screwed in the first slide seat for driving the first slide seat to axially move along the first threaded rod; a body of the second threaded rod being screwed in the second slide seat for driving the second slide seat to axially move along the second threaded rod; a first rotary button and a second rotary button, the first rotary button being disposed at a front end of the rod section of the first threaded rod, the second rotary button being located on the front end piece for driving the second threaded rod; a first transmission gear and a second transmission gear, the second transmission gear being fixedly connected to the rod section of the second threaded rod; the first transmission gear being selectively connected with the rod section of the first threaded rod; and a fastening member located on a front end of the axial adjustment device and mounted between the rod section of the first threaded rod and the first rotary button, the fastening member being movable between a fastening position and a releasing position, when the fastening member is positioned in the fastening position, the two threaded rods being driven with each other via the two transmission gears, and the first threaded rod and the first rotary button rotating with the first transmission gear; when the fastening member is positioned in the releasing position, the first threaded rod and the first rotary button rotating independently of the first transmission gear, the second transmission gear and the second threaded rod.