Power actuated door locking and monitoring assembly

• US 4,634,155 A
• Filed: 09/01/1983
• Issued: 01/06/1987
• Est. Priority Date: 09/01/1983
• Status: Expired due to Term

• Current Assignee: Geringer, Arthur V., Geringer, David A., Richard G. Geringer
• Original Assignee: Geringer, Arthur V., Geringer, David A., Richard G. Geringer
• Inventors: Geringer, Arthur V., Geringer, David A., Geringer, Richard G.
• Primary Examiner(s): Smith, Gary L.
• Assistant Examiner(s): Gall, Lloyd A.
• Application Number:
  US06/528,874
• Time in Patent Office: 1,223 Days
• Field of Search: 292/144, 292/181, 292/177, 292/153, 292/144, 70/432, 70/281
• US Class Current: 292/144
• CPC Class Codes: E05B 15/101 Spring-retracted bolts
• CPC Class Codes: E05B 17/22 Means for operating or controlling lock or fastening device accessories, i.e. other than the fastening members, e.g. switches, indicators E05B39/00 - E05B45/00 take precedence
• CPC Class Codes: E05B 47/0002 with electromagnets
• CPC Class Codes: E05B 47/026 the bolt moving rectilinearly
• CPC Class Codes: Y10T 292/1003 Swinging catch
• CPC Class Codes: Y10T 292/1021 Motor
• CPC Class Codes: Y10T 70/7119 Projected electrically only
• CPC Class Codes: Y10T 70/8027 Condition indicators

Abstract

An improved door locking and monitoring assembly is provided which is power activated. The assembly comprises a housing disposable in a door frame and defining a passageway which has a bolt slidably disposed therein and lockset means in the door member. A lever is pivoted in the housing. The lever is L-shaped, with a spring biased vertical arm below it. The rear of the latter is urgeable upwardly by a ball to pivot the lever and move the bolt forward into the locked position. The ball is urgeable upwardly by a solenoid actuated plunger. The biased L-shaped arm has the arms thereof pivoted allowing relative angular movement. An extension on one of the arms is forced into an opening in the housing when the bolt is fully extended to lock-set the bolt. When the bolt moves into the locked position, a member on its rear end closes a powered switch to signal this condition. The assembly also can include a door position indicator device connected to or disposed within the housing and containing a switch normally closed by the door when in a closed position and which can provide a signal indicating the position of the door. The assembly assures full monitoring of a door fitted with the assembly so that it is known remotely whether the door is locked, unlocked, or dead-locked, and when the door is opened.

Claims

1. An improved power activated door locking and monitoring assembly, said assembly comprising:

(a) a housing adapted to be disposed in a door frame and defining a passageway extending to the front thereof;

(b) a bolt slideably disposed in said passageway;

(c) a lever disposed below and to the rear of said bolt, wherein said lever comprises a first arm and a second arm pivotably connected to the rear end of said first arm and extending at substantially a right angle with respect thereof when in an at-rest position, and spring means interconnecting said first and second arms for releasably maintaining said arms perpendicular to each other when in an at-rest position,

(d) biasing means normally retaining said bolt in the fully retracted unlocked position in said passageway,

(e) power activator means connected to said housing which, when energized, pivot said lever into the rear of said bolt causing said second arm to rotate in a clockwise direction from said perpendicular position while advancing said bolt against the action of said biasing means to the positively locked position extending out of the front of said passageway;

(f) dead-lock means for maintaining said bolt in the extended position;

(g) said dead-lock means including an extension on said second arm and a recess in said housing adapted to receive said extension, wherein movement of the bolt to the positively locked position causes concurrent counter-clockwise rotation of said second arm from said perpendicular position past the perpendicular position and concurrent movement of the extension into the recess to provide a lockset function;

(h) bolt position and signaling means secured to said housing activated by said bolt; and

(i) door position detecting and signaling means associated with said assembly.

2. The improved door locking and monitoring assembly of claim 1 wherein said passageway is about horizontal and wherein said bolt biasing means comprises a spring in said passageway.

3. The improved door locking and monitoring assembly of claim 1 wherein said passageway is about horizontal, wherein said activator means includes a casing containing a solenoid operated plunger, a ball disposed on the free end of said plunger in a channel in said housing immediately below said first lever arm, whereby upon energizing said solenoid, said plunger forces said ball upward against said first lever arm, thereby pivoting said lever and causing said second lever arm to drive said bolt forward into said locked position.

4. The improved door locking and monitoring assembly of claim 1 wherein said bolt position detecting and signaling means comprises a switch having a switch arm extending into said passageway, and wherein the rear end of said bolt includes a tab which contacts said switch arm to close said switch only when said bolt moves forward in said passageway into the locked position.

5. The improved door locking and monitoring assembly of claim 1 including an indicator unit which serves to indicate whether the door is open or closed.

6. The improved door locking and monitoring assembly of claim 1 wherein said dead-lock means comprises an extension on said second arm and a recess in said housing, wherein movement of the bolt to the positively locked position causes concurent movement of the extension into the recess, thereby providing a lock-set function.