| 摘要 |
<p>A latch device comprises a casing secured to a body with a door hinged thereto and a slide to be pushed, when the door is closed, by a strike projecting from the back side of the door into the casing so that the door is held closed with the strike retained in the slide. The slide has a heart-shaped cam groove formed in the top surface. A latch pin is provided with its one end received in the cam groove and its other end rotatably fitted in the casing. The one end of the latch pin is adapted to trace the cam groove with the movement of the slide, and is urged against the bottom of the cam groove by a retainer spring.</p> |
