Claims
- 1. A lock assembly for use on a security door for locking and unlocking said security door, said lock assembly comprised of:
- a lock component movable a predetermined distance between a first position locking said door and a second position unlocking said door;
- three spaced-apart locks, each of said locks having a lock arm movable a set distance between a locked position and an unlocked position;
- a linkage for connecting said locks to said lock component to cause movement of said lock component in response to movement of each of said lock arms, wherein said linkage is a connector bar pivotally connecting the lock arms of a first lock and a second lock of said three locks;
- a first lever pivotable about a first fixed axis, said first lever having a first end pivotally connected to said connector bar for movement therewith, and a second end movable about said first fixed axis in response to movement of said first end;
- a second lever rotatable about a second fixed axis, said second lever having a first end pivotally connected to the lock arm of a third lock of said three locks for movement therewith and a second end movable in response to movement of said first end; and
- a link having one end pivotally connectable to said second end of said first lever and a second end connectable by a connection pin to the second end of said second lever, said linkage having a first pin location and a second pin location, wherein when said connection pin is in said first pin location said link assumes a first operating configuration, and when said connection pin is in said second pin location said link assuming a second operating configuration, when in said first operating configration movement of the lock arms of any two of said three locks form said locked position to said unlocked position causes said link to move said lock component to said second position, and when in said second operating configuration movement of the lock arms of a specific two of said three locks or movement of the lock arm of the remaining of said three locks causes said link to move said lock component to said second position.
- 2. A lock assembly for use on a security door for locking and unlocking said security door, said lock assembly comprising:
- a lock component movable a predetermined distance between a first position locking said door and a second position unlocking said door;
- three spaced-apart locks, each of said locks having a lock arm movable a set distance between a locked position and an unlocked position;
- a connector bar pivotally connecting the lock arms of a first lock and a second lock of said three locks;
- a first lever pivotable about a first fixed axis, said first lever having a first end pivotally connected to said connector bar for movement therewith, and a second end movable about said first fixed axis in response to movement of said first end;
- a second lever rotatable about a second fixed axis, said second lever having a first end pivotally connected to the lock arm of a third lock of said three locks for movement therewith and a second end movable in response to movement of said first end; and
- a link being pivotally mounted to said locking component, said link having one end pivotally connectable to said second end of said first lever and a second end pivotally connectable to the second end of said second lever; and
- connection means for connecting said second end of said first lever to said link at a first location, said first and said second levers being positioned such that movement of the lock arms of any two of said three locks from said locked position to said unlocked position causes said lock component to move from said first position to said second position when said connection means is at said first location.
- 3. A lock assembly as defined in claim 2 wherein said connection means includes means for connecting said second end of said first lever to said link at a second location, wherein movement from said locked position to said unlocked position of a specific two of said three locks, or a specific one of said three locks, causes said lock bar to move from said first position to said second position.
- 4. A lock assembly for use on a security door for locking and unlocking said security door, said lock assembly comprising:
- a lock component movable a predetermined distance between a first position locking said door and a second position unlocking said door;
- three spaced-apart locks, each of said locks having a lock arm movable a set distance between a locked position and an unlocked position;
- a connector bar pivotally connecting the lock arms of a first lock and a second lock of said three locks;
- a first lever pivotable about a first fixed axis, said first lever having a first end pivotally connected to said connector bar for movement therewith, and a second end movable about said first fixed axis in response to movement of said first end;
- a second lever rotatable about a second fixed axis, said second lever having a first end pivotally connected to the lock arm of a third lock of said three locks for movement therewith and a second end movable in response to movement of said first end;
- a link being pivotally mounted to said lock component, said link having one end pivotally connectable to said second end of said first lever and a second end pivotally connectable to the second end of said second lever; and
- connection means for connecting said second end of said first lever to said link at a first location, said first and said second levers being positioned such that movement of the lock arms of a specific two of said three locks, or a specific one of said three locks, causes said lock bar to move from said first position to said second position.
- 5. A lock assembly as defined in claim 4 wherein said connection means includes means for connecting said second end of said first lever to said link at a second location, wherein movement from said locked position to said unlocked position of any two of said three locks from said locked position to said unlocked position causes said lock bar to move from said first position to said second position when said connection means is at said first location.
Parent Case Info
This is a divisional of application Ser. No. 08/242,909 filed on May 13, 1994 now U.S. Pat. No. 5,603,234.
US Referenced Citations (16)
Foreign Referenced Citations (3)
Number |
Date |
Country |
2 119 011 |
|
GBX |
2 089 422 |
Jun 1982 |
GBX |
2 146 689 |
Apr 1985 |
GBX |
Divisions (1)
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Number |
Date |
Country |
Parent |
242909 |
May 1994 |
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