Sliding door lock
AssigneeSouthern Steel Company
InventorsEugene F. Daugherty, Charles E. Holycross
Life of this patent
Estimating the term…
Abstract
The lock assembly of the present invention is mounted in a lock frame. A slide member is disposed for translation within the lock frame. A lock bolt is pivotally mounted within the lock frame and extends through it for engagement with a door keeper in a door frame. A lock bolt detent is pivotally mounted to the slide member for maintaining the lock bolt in a secure position when the door is closed. Actuation of movement of the slide member results in movement of the lock bolt detent away from the lock bolt followed by pivotal motion of the lock bolt as a pin on the slide member engages the lock bolt and lifts clear of the door keeper. The door is sprung open by a spring loaded plunger which extends out of the lock frame.
Claims24
A lock assembly in combination with a door assembly that includes a door frame, a door keeper, and a sliding door movably mounted in the door frame, comprising:
- a. a lock frame supported by the door assembly, positioned in proximity to the door keeper when the sliding door is closed and positioned away from the door keeper when the sliding door is opened;
- b. a slide member movably mounted within the lock frame between a first locked position and a second unlocked position;
- c. a lock bolt member mounted within the lock frame and positioned to be engaged by and travel with the slide member between locked and unlocked positions, the lock bolt member including connecting means partially extending from the lock frame for forming a connection with the door keeper that locks the sliding door when the slide member is in the first locked position and the slide member disengages the connecting means and door keeper when the slide member moves to the second unlocked position;
- d. lock bolt detent means for preventing movement of the lock bolt member to the unlocked position when the slide member is in the first locked position;
- e. disabling means for spacing the lock bolt member and the detent means apart responsive to movement of the slide member from the first locked position to the second unlocked position;
- and
- f. means for holding the detent means in a spaced position from the lock bolt member and independently of slide member travel so that the door can slam lock when the lock bolt member engages the door keeper.
A lock assembly in combination with a door assembly that includes a door frame, a sliding door movably mounted in the door frame, and a door keeper, comprising:
- a. a lock frame supported by the door assembly, positioned in proximity to the door keeper when the sliding door is closed, and positioned away from the door keeper when the sliding door is opened;
- b. a slide member movably mounted within the lock frame between a first lower and a second higher position along a generally vertical path;
- c. a horizontally extending lock bolt member mounted within the lock frame and having means extending therefrom for engaging the door keeper to lock the door, such means having a hook shaped segment with a leading beveled edge, the lock bolt member being positioned to engage the slide member for movement therewith between locked and unlocked positions corresponding respectively to the first and second positions of the slide member;
- d. plunger means for thrusting the door open when the lock bolt member moves to the unlocked position;
- e. a release spring urging the plunger means to extend out of the lock frame;
- f. lock bolt detent means, mounted upon the slide member for travel therewith, for maintaining the lock bolt member in the locked position when the slide member is in the first position;
- g. means for disabling the lock bolt detent means, responsive to movement of the slide member from the first lower position toward the second upper position thereby allowing the door to open;
- and
- h. the disabling means including holding means for keeping the detent means and lock bolt member in spaced apart positions and independently of slide member movement after the sliding door is opened.
A lock assembly in combination with a door assembly that includes a door frame, a door keeper, and a sliding door movably mounted in the door frame and with respect to the door keeper, comprising:
- a. a lock frame mounted on the door assembly in a position spaced from the door keeper so that the door keeper and lock frame can move relative to each other when the sliding door opens and closes;
- b. a key-operated slide member movably mounted within the lock frame between first and second positions;
- c. a lock bolt member movably mounted upon the lock frame for movement independently of the slide member but positioned to travel with the slide member at least when the slide member moves from the first to the second position, which moves the lock bolt member from a locked position to an unlocked position;
- d. the lock bolt member including means extending from the lock frame for perfecting a tensile connection with the door keeper that prevents opening of the sliding door, such means having a hook shaped segment with a leading beveled edge;
- e. powered plunger means for thrusting the door open when the lock bolt member moves to the unlocked position;
- f. release spring urging the plunger means to extend out of the lock frame;
- g. detent means carried by the slide member for preventing movement of the lock bolt member when the slide member is in the first position;
- and
- h. disabling means for holding the detent means in a position spaced from the lock bolt member when the sliding door and door keeper are disengaged so that the lock bolt member is free to move between locked and unlocked positions when the sliding door is open and comprising in part a member that forms a connection with the powered plunger means.
Dependencies are inferred from the claim text.