| 摘要 |
<p>A guide device for the lock of a crank-locked firearm, comprising on the one hand a guide surface (5) made on the surface of a cylindrical lock (2) and on the other hand a corresponding guide piece (3) in the frame (1) of the lock. With the purpose of facilitating and improving the guiding of the lock, the guide piece is a roller (3) mounted by a bearing on a shaft transverse to the lock, the shape of the circumference of the roller corresponding to the axial guide surface (5) machined on the surface of the lock (2). In the simplest case the roller (3) can be cylindrical, in which case the guide surface (5) of the lock is respectively a flat segment surface.</p> |
