Phase-locked pivot assembly

摘要

A phase-locked pivot assembly includes a support component. A first shaft and a second shaft pivot relative to the support component. A first annular body is configured to rotate with the first shaft. The first annular body includes a first outer annular surface and a first sunken arc portion. A second annular body is configured to rotate with the second shaft and corresponds to the first annular body. The second annular body includes a second outer annular surface and a second sunken arc portion. The first sunken arc portion and the second outer annular surface are matched and selectively contact each other to lock the first shaft. The second sunken arc portion and the first outer annular surface are matched and selectively contact each other to lock the second shaft.

主权项

1. A phase-locked pivot assembly comprising:
a support component; a first shaft and a second shaft pivoting relative to the support component respectively; a first annular body rotatable together with the first shaft, with the first annular body comprising a first outer annular surface and a first sunken arc portion; a second annular body rotatable together with the second shaft and corresponding to the first annular body, with the second annular body comprising a second outer annular surface and a second sunken arc portion, wherein the second annular body is disposed on the second shaft in a surrounding manner; a first gear disposed on the first shaft in a surrounding manner; and a second gear disposed on the first annular body and engaged with the first gear, wherein an axial direction of the second gear aligns with an axial direction of the first annular body; wherein the first sunken arc portion has a same shape as and for receiving a shape of the second outer annular surface, wherein the first sunken arc portion and the second outer annular surface selectively contact each other to lock the first shaft from rotation, wherein the second sunken arc portion has a same shape as and for receiving a shape of the first outer annular surface, and wherein the second sunken arc portion and the first outer annular surface selectively contact each other to lock the second shaft from rotation.