Patent ID: 7445365
Filing Date: 2008-11-04
Classification: B60Q

Abstract:
1. A position adjustment device, comprising: a housing; a limit rod mounted on a first side of the housing and having an inner wall formed with an inner thread and an outer wall formed with an outer thread; a movable rod mounted in the limit rod and having an outer wall formed with an outer threading screwed into the inner thread of the limit rod; a rotation knob rotatably mounted on a second side of the housing; a linking member mounted in the housing and having a first end secured to and driven by the rotation knob and a second end secured to the movable rod to rotate the movable rod relative to the limit rod by rotation of the rotation knob so as to move the movable rod relative to the limit rod by engagement between the inner thread of the limit rod and the outer threading of the movable rod; a driven member rotatably mounted in the housing and having an inner wall formed with an inner threading screwed onto the outer thread of the limit rod and an outer wall formed with a driven gear; a worm wheel rotatably mounted in the housing and having a first end formed with a driving gear meshing with the driven gear of the driven member and a second end formed with a drive gear; a direct-current motor mounted in the housing and provided with a worm meshing with the drive gear of the worm wheel to rotate the worm wheel.