Sliding door frame corner lock

• US 4,478,006 A
• Filed: 08/11/1983
• Issued: 10/23/1984
• Est. Priority Date: 08/11/1983
• Status: Expired due to Fees

• Current Assignee: L.E. Johnson Products, Inc.
• Original Assignee: L E Johnson Incorporated
• Inventors: Johnson, Leonard E. Jr.
• Primary Examiner(s): Downey, Kenneth
• Application Number:
  US06/522,469
• Time in Patent Office: 439 Days
• Field of Search: 49/425, 49/409, 49/410, 49/411, 16/105, 403/231, 403/322
• US Class Current: 49/410
• CPC Class Codes: E05D 15/0626 for wings suspended at the top
• CPC Class Codes: E05D 15/0656 Bottom guides
• CPC Class Codes: E05Y 2900/132 Doors
• CPC Class Codes: Y10T 403/4602 Corner joint
• CPC Class Codes: Y10T 403/591 having operating mechanism

Abstract

A lock for rail and stile members of a sliding door frame. The lock includes an actuator and an associated slide member, each having protrusions which can be extended into the door frame members when the actuator is moved into a lock position.

Claims

1. In a sliding door assembly including a frame having adjoining frame members, a panel member peripherally enclosed by said frame members, means associated with said frame for mounting said door assembly within a door opening for sliding movement over said door opening, the improvement comprising a removable lock associated with said frame for securing two of said adjoining frame members together, said lock including engagement parts overlying and engaging said adjoining frame members at a frame corner to prevent lateral separation of the frame members from the panel member, said lock further including locking tabs and an associated pivotal actuator part shiftable between a lock position in which said locking tabs are extended and a release position in which the locking tabs are retracted, said actuator part being in its lock position with said locking tabs engaging said adjoining frame member to prevent lifting separation of said engagement parts from the adjoining frame members.

2. The door assembly of claim 1 wherein said engagement parts constitute components of a plate member, said actuator part supported by said plate member, one of said locking tabs connected to said actuator part, another of said locking tabs constituting a part of a slide member, contact means between said actuator part and slide member for extending said locking tabs upon shiftable movement of the actuator part into its said lock position and for retracting said locking tabs upon shiftable movement of the actuator part into its said release position.

3. The door assembly of claim 2 wherein said slide member is located between said plate member and said actuator part, said actuator part and slide member contact means including a cam carried by the actuator part and contacting the slide member.

4. The door assembly of claim 2 wherein said engagement parts include protrusions extending outwardly from said plate member, said adjoining frame members having holes therein, said protrusions extending into said frame member holes.

5. The door assembly of claim 2 wherein each frame member includes a slotted opening, said panel member inserted into said slotted opening, said locking tabs fitted between said panel member and said frame members within said slotted openings therein when said actuator part is in its said lock position.

6. The door assembly of claim 2 wherein said mounting means is carried by said plate member.

7. A lock for securing adjoining frame members together about a panel member, said lock comprising a plate member having means for engaging said frame members at a frame corner to prevent lateral separation of the frame members from the panel member, a base part connected to said plate member, an actuator part connected to said base part for pivotal movement between lock and release positions, a slide including a locking tab positioned between said base part and plate member and guided by at least one of the base part and plate member for sliding movement relative to the plate member, said actuator part including a locking tab spaced from said slide locking tab and a cam means contacting said slide for imparting said sliding movement to the slide upon said pivotal movement of the actuator part wherein said plate member and slide locking tabs are shifted into extended positions to engage said frame members to prevent separation of the plate member from the frame members when the actuator part is pivoted into its said lock position and wherein said locking tabs are shifted into retracted positions disengaged from the frame members to allow separation of the plate member from the frame members when the actuator part is pivoted into its said release position.

8. The lock of claim 7 wherein said actuator part includes a second locking tab oppositely located from its first mentioned locking tab, said actuator part having a first and second said lock position depending upon the direction of pivotal movement of the actuator part, wheren said first mentioned actuator part locking tab and said slide locking tab are shifted into said extended positions upon movement of said actuator part into its first said lock position and wherein said second actuator part locking tab and said slide locking tab are shifted into said extended positions upon movement of the actuator part into its second said lock position.