초록 ▼

A pop-out T-handle assembly of the type containing a lock cylinder having high security features which defy forced entry is disclosed. A cylinder front handle and cylinder/extension housing are assembled around the cylinder lock and rigidly secured for protection against pulling the lock. The face o

A pop-out T-handle assembly of the type containing a lock cylinder having high security features which defy forced entry is disclosed. A cylinder front handle and cylinder/extension housing are assembled around the cylinder lock and rigidly secured for protection against pulling the lock. The face of the cylinder lock is preferably protected by a freely rotating cylinder protector plate to protect against drilling into the cylinder lock. A locator tab and slot arrangement assures alignment of the cylinder lock bolt and a corresponding opening in the T-handle housing, as well as restricts lateral movement of the cylinder front handle within the T-handle housing to protect against prying. A T-handle clutch arrangement of a generally square configuration provides extensive bearing surface to absorb torque and prevent wear. An auxiliary locking mechanism for added protection against pulling the inner cylinder of the lock in the event that the cylinder protector plate is defeated or a method is devised to either pull or pry the cylinder front handle.

대표청구항 ▼

1. A high security pop-out T-handle assembly of the type containing a lock cylinder, the assembly comprising: (a) a cylinder front handle containing a passage therethrough for key access to the lock cylinder, the handle having an inwardly facing flange at the outer face of the passage, (b) a sep

1. A high security pop-out T-handle assembly of the type containing a lock cylinder, the assembly comprising: (a) a cylinder front handle containing a passage therethrough for key access to the lock cylinder, the handle having an inwardly facing flange at the outer face of the passage, (b) a separate cylinder/extension housing of elongated hollow shape having connection means on one end of the housing to mate with connection means on the cylinder front handle, the housing including a passageway through its wall for passage of a lock cylinder bolt from the lock cylinder accommodated in the housing, (c) removable mechanical connection means for securely and rigidly connecting the cylinder front handle and cylinder/extension housing in their assembled position, and to allow disassembly thereof, the assembled position of the cylinder front handle and cylinder/extension housing leaving an annular interstice behind the flange of the cylinder front handle, (d) a cylinder protector plate positioned and freely rotatably in the interstice to resist drilling and pulling of the lock cylinder, (e) an extension rod having a head within and a body extending linearly outwardly of an end of the cylinder/extension housing which is opposite the cylinder front handle, (f) mechanical positively-engaging clutch means connecting the housing and the extension rod to allow the extension rod to be rotated when the lock cylinder is unlocked and the cylinder front handle pops out, (g) a T-handle housing having a generally cup-shaped head configured to closely accommodate the cylinder front handle, and to cover the mechanical connection means when the cylinder front handle is positioned therein, the T-handle housing further having a hollow shank to accommodate the cylinder/extension housing, the shank having a wall configuration to receive a lock cylinder bolt extendable from a lock cylinder to lock the T-handle assembly, and (h) a compression spring positioned between the end of the shank of the T-handle housing and the end of the cylinder/extension housing, the spring being normally compressed to force the cylinder front handle outwardly when the lock cylinder is unlocked. 2. A high security pop-out T-handle assembly of the type containing a lock cylinder, the assembly comprising: (a) a cylinder front handle containing a passage therethrough for key access to the lock cylinder, (b) a cylinder/extension housing of elongated hollow shape having connection means on one end of the housing to mate with connection means on the cylinder front handle, the housing including a passageway through its wall for passage of a lock cylinder bolt from the lock cylinder accommodated in the housing, (c) removable mechanical connection means for securely and rigidly connecting the cylinder front handle and cylinder/extension housing in their assembled position, including bayonet connection means on the end of the housing assembled to the cylinder front handle and on the cylinder front handle, (d) an extension rod having a head within and a body extending linearly outwardly of an end of the cylinder/extension housing which is opposite the cylinder front handle, (e) mechanical positively-engaging clutch means connecting the housing and the extension rod to allow the extension rod to be rotated when the lock cylinder is unlocked and the cylinder front handle pops out, (f) a T-handle housing having a generally cup-shaped head configured to closely accommodate the cylinder front handle, and further having a hollow shank to accommodate the cylinder/extension housing, the shank having a wall configuration to receive a lock cylinder bolt extendable from a lock cylinder to lock the T-handle assembly, and (g) a compression spring positioned between the end of the shank of the T-handle housing and the end of the cylinder/extension housing, the spring being normally compressed to force the cylinder front handle outwardly when the lock cylinder is unlocked. 3. A high security pop-out T-handle assembly of the type containing a lock cylinder, the assembly comprising: (a) a cylinder front handle containing a passage therethrough for key access to the lock cylinder, (b) a cylinder/extension housing of elongated hollow shape having connection means on one end of the housing to mate with connection means on the cylinder front handle, the housing including a passageway through its wall for passage of a lock cylinder bolt from the lock cylinder accommodated in the housing, (c) removable mechanical connection means for securely and rigidly connecting the cylinder front handle and cylinder/extension housing in their assembled position, including at least one drivable pin extending through the cylinder front handle and cooperating with the cylinder/extension housing to prevent movement thereof after the cylinder front handle and cylinder/extension housing are assembled, (d) an extension rod having a head within and a body extending linearly outwardly on an end of the cylinder/extension housing which is opposite the cylinder front handle, (e) mechanical positively-engaging clutch means connecting the housing and the extension rod to allow the extension rod to be rotated when the lock cylinder is unlocked and the cylinder front handle pops out, (f) a T-handle housing having a generally cup-shaped head configured to closely accommodate the cylinder front handle, and further having a hollow shank to accommodate the cylinder/extension housing, the shank having a wall configuration to receive a lock cylinder bolt extendable from a lock cylinder to lock the T-handle assembly, and (g) a compression spring positioned between the end of the shank of the T-handle housing and the end of the cylinder/extension housing, the spring being normally compressed to force the cylinder front handle outwardly when the lock cylinder is unlocked. 4. A high security pop-out T-handle assembly of the type containing a lock cylinder, the assembly comprising: (a) a cylinder front handle contining a passage therethrough for key access to the lock cylinder, (b) a cylinder/extension housing of elongated hollow shape having connection means on one end of the housing to mate with connection means on the cylinder front handle, the housing including a passageway through its wall for passage of a lock cylinder bolt from the lock cylinder accommodated in the housing, (c) removable mechanical connection means for securely and rigidly connecting the cylinder front handle and cylinder/extension housing in their assembled position, including means for securely connecting the cylinder front handle and the cylinder/extension housing comprising a bayonet connection means on both the cylinder front handle and cylinder/extension housing of complementary nature to allow assembly and further comprises at least one drivable pin extending through the cylinder front handle to prevent the bayonet connection means from being uncoupled, (d) an etension rod having a head within and a body extending linearly outwardly of an end of the cylinder/extension housing which is opposite the cylinder front handle, (e) mechanical positively-engaging clutch means connecting the housing and the extension rod to allow the extension rod to be rotated when the lock cylinder is unlocked and the cylinder front handle pops out, (f) a T-handle housing having a generally cup-shaped head configured to closely accommodate the cylinder front handle, and further having a hollow shank to accommodate the cylinder/extension housing, the shank having a wall configuration to receive a lock cylinder bolt extendable from a lock cylinder to lock the T-handle assembly, and (g) a compression spring positioned between the end of the shank of the T-handle housing and the end of the cylinder/extension housing, the spring being normally compressed to force the cylinder front handle outwardly when the lock cylinder is unlocked. 5. A high security pop-out T-handle assembly as defined in claim 1 further comprising; a cooperating elongated locator slot, and matching elongated tab means on the cylinder front handle and T-handle housing head to assure alignment of a lock cylinder bolt with only one side of the T-handle shank wall configuration and to provide added protection against prying when the cylinder front handle is within the T-handle housing head. 6. A high security pop-out T-handle assembly as defined in claim 1 further comprising an auxiliary locking means extending through the T-handle housing, the cylinder/extension housing and into the lock cylinder, and thereby providing added protection against pulling the bolt. 7. A high security pop-out T-handle assembly of the type containing a lock cylinder, the assembly comprising: (a) a cylinder front handle containing a passage therethrough for key access to the lock cylinder, (b) a cylinder/extension housing of elongated hollow shape having connection means on one end of the housing to mate with connection means on the cylinder front handle, the housing including a passageway through its wall for passage of a lock cylinder bolt from the lock cylinder accommodated in the housing, (c) means for securely and rigidly connecting the cylinder front handle and cylinder/extension housing in their assembled position, (d) an extension rod having a head within and a body extending linearly outwardly of an end of the cylinder/extension housing which is opposite the cylinder front handle, (e) mechanical positively-engaging clutch means connecting the housing and the extension rod to allow the extension rod to be rotated when the lock cylinder is unlocked and the cylinder front handle pops out, (f) a T-handle housing having a generally cup-shaped head configured to closely accommodate the cylinder front handle, and further having a hollow shank to accommodate the cylinder/extension housing, the shank having a wall configuration to receive a lock cylinder bolt extendable from a lock cylinder to lock the T-handle assembly, and (g) a compression spring positioned between the end of the shank of the T-handle housing and the end of the cylinder/extension housing, the spring being normally compressed to force the cylinder front handle outwardly when the lock cylinder is unlocked, and (h) an auxiliary locking means providing added protection against pulling the bolt, the auxiliary locking means comprising a spring member having one end attached to the shank housing and another biasing a locking pin toward the center of the lock cylinder, the locking pin extending through a passageway in the T-handle shank and cylinder/extension housing into the lock cylinder so that the end of the pin contacts a plug of the lock cylinder and may be rotated thereby to selectively release or hold the lock cylinder to the T-handle shank. 8. A high security pop-out T-handle assembly of the type containing a lock cylinder, the assembly comprising: (a) a cylinder front handle containing a passage therethrough for key access to the lock cylinder, (b) a cylinder/extension housing of elongated hollow shape having connection means on one end of the housing to mate with connection means on the cylinder front handle, the housing including a passageway through its wall for passage of a lock cylinder bolt from the lock cylinder accommodated in the housing, (c) means for securely and rigidly connecting the cylinder front handle and cylinder/extension housing in their assembled position, (d) an extension rod having a head within and a body extending linearly outwardly of an end of the cylinder/extension housing which is opposite the cylinder front handle, (e) mechanical positively-engaging clutch means connecting the housing and the extension rod to allow the extension rod to be rotated when the lock cylinder is unlocked and the cylinder front handle pops-out, (f) a T-handle housing having a generally cup-shaped head configured to closely accommodate the cylinder front handle, and further having a hollow shank to accommodate the cylinder/extension housing, the shank having a wall configuration to receive a lock cylinder bolt extendable from a lock cylinder to lock the T-handle assembly, and (g) a compression spring positioned between the end of the shank of the T-handle housing and the end of the cylinder/extension housing, the spring being normally compressed to force the cylinder front handle outwardly when the lock cylinder is unlocked, (h) a hardened protector plate positioned to be freely rotatable between a back side of the cylinder front handle and a front face of the cylinder plug, the protector plate having a passage therethrough to accommodate a lock cylinder, (i) a spacing washer positioned behind the hardened protector plate so as to accommodate different size lock cylinders, (j) an auxiliary locking means providing added protection against pulling the bolt, the auxiliary locking means comprising a spring member having one end attached to the shank housing and another biasing a locking pin toward the center of the lock cylinder, the locking pin extending through a passageway in the T-handle shank and cylinder/extension housing into the lock cylinder so that the end of the pin contacts a plug of the lock cylinder and may be rotated thereby to selectively release or hold the lock cylinder to the T-handle shank. 9. A high security pop-out T-handle assembly comprising: (a) a cylinder front handle containing a passageway therethrough for key access and having an inturned flange on the entrance of the passageway, (b) a cylinder/extension housing of elongated tubular shape having an outer end and an inner end and having an opening in a wall thereof for a locking bolt, (c) a lock cylinder positioned in the cylinder/extension housing, the lock cylinder being key-operated, having a rotatable plug, and a bolt extendable through the housing wall, the lock cylinder being insertable into the cylinder/extension housing only from the outer end thereof, (d) means for mechanically assembling and rigidly connecting the cylinder front handle to the outer end of the cylinder/extension housing so that the key access passageway in the cylinder front handle is in alignment with the plug in the lock cylinder within the cylinder/etension housing, (e) a hardened protector plate having an opening therethrough for key access, the plate being freely rotatable and positioned between the flange on the entrance of the passageway in the cylinder front handle and the cylinder lock, (f) a threaded extension rod having one end with teeth of a clutch member extending into the inner end of the cylinder/extension housing, (g) complementary positively-engaging clutch member within the inner end of the cylinder/extension housing for engagement with the clutch configuration on the threaded extension rod, (h) a T-handle housing having a cup-shaped head configured to closely accommodate the cylinder front handle and to cover the means for connecting the handle and the cylinder/extension housing, and a shank shaped to accommodate the cylinder/extension housing, the shank having a wall configuration to receive the lock cylinder bolt to lock the T-handle, and (i) spring means positioned in the shank of the T-handle for biasing the cylinder front handle and cylinder/extension housing outwardly.