Latch locking apparatus for a frameless glass door
AssigneeDoor & Window Hardware Co.
InventorsWei-Hung Chang, Ching-Ko Lin
Life of this patent
Estimating the term…
Abstract
A latch locking apparatus for a glass door has a body, an operating member, a transmitting device and a lock device. The body has a casing with a mounting hole and a lower mounting post. The operating member is mounted in the casing and has a pulling arm, a mounting post and a first spring. The mounting post is formed on the pulling arm. The transmitting device is mounted in the casing and has a latch plate, a transmitting lever and a pulling bar. The latch plate is mounted in the casing and has a second spring. The transmitting lever is connected to the latch plate. The pulling bar is connected to the transmitting lever and has a third spring. The lock device is connected to the body and the operating member.
Claims7
A latch locking apparatus comprising
- a body having
- a casing having
- an open top;
- a closed bottom;
- a lower sidewall;
- an upper sidewall;
- a distal end;
- a proximal end;
- a chamber being defined in the casing between the open top and the closed bottom;
- an opening being formed through distal end of the casing;
- a mounting hole being formed through the closed bottom of the casing near the proximal end;
- a connecting hole being formed through the closed bottom of the casing between the opening and the mounting hole;
- and
- a lower mounting post being formed on the closed bottom of the casing near the lower sidewall;
- an operating member being mounted rotatably in the mounting hole in the casing of the body and having
- a front end;
- a pulling arm being formed on the front end of the operating member and having a bottom;
- a mounting post being formed on the bottom of the pulling arm;
- and
- a first spring being connected between the mounting post on the pulling arm and the lower mounting post on the casing;
- a transmitting device being mounted in the casing, being connected to the operating member and having
- a latch plate being mounted moveably in the chamber and having
- a latch end;
- a mounting end;
- a latch head being formed on the latch end of the latch plate and extending out the casing from the opening;
- an upper tail being formed on the mounting end of the latch plate at a position near the upper sidewall of the casing;
- and
- a lower tail being formed on the mounting end of the latch plate at a position near the lower sidewall of the casing and having
- a top;
- a distal end;
- and
- a lower connecting post being formed on the top of the lower tail, and
- a locking device being connected to the body and the operating member and having
- a lock cam being connected to the connecting hole of the casing between the latch plate and the operating member and having
- a rotating ring being mounted rotatably on the lock cam;
- a center;
- a through hole being formed through the center of the lock cam;
- and
- a locking protrusion being formed on the rotating ring and selectively abutting one of the upper tail of the latch plate and the transmitting lever of the transmitting device;
- two lock cylinders being respectively mounted with the lock cam and each lock cylinder having
- an outer end;
- and
- a cap being mounted around the corresponding outer end of the lock cylinder;
- and
- a handles device being attached to the body and the operating member and having two handles.
Dependencies are inferred from the claim text.