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US 10,435,914 B2Granted
Interchangeable core lock assemblies
AssigneeDelta Lock Company, LLC
InventorAlvin Ma
Life of this patent
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Abstract
A locking device is provided including a housing, a barrel, an interchangeable core (IC), and a prong driver. The housing extending along a longitudinal axis and including a first slot. The barrel slidably disposed in a hollow interior of the housing, where the barrel is slidable along the longitudinal axis. The barrel including a second slot and a hollow interior to retain the IC. The IC including a key hole and coupled to the prong driver. The prong driver including an engaging element extending from the prong driver perpendicularly to the longitudinal axis into the first slot and the second slot. When a proper key is inserted into the key hole and rotated, the engaging element is rotated within the first and second slots to allow the barrel to slide along the longitudinal axis to lock and unlock the locking device.
Claims20
A locking device, comprising:
- a housing including a first end and a second end, the housing extending along a longitudinal axis, the housing further including a first slot and an outer wall defining a hollow interior, the first slot disposed through the outer wall of the housing and including a first end, a second end, and a middle point, wherein a first portion of the first slot extends along the longitudinal axis from the first end to the middle point and a second portion of the slot extends perpendicularly to the longitudinal axis from the middle point to the second end;
- a barrel including a first end and a second end, the second end of the barrel disposed through the first end of the housing into the hollow interior of the housing such that the barrel is slidable along the longitudinal axis, the barrel further including an outer wall defining a hollow interior and a second slot disposed through the outer wall of the barrel, the second slot including a first end and a second end and extending perpendicularly to the longitudinal axis;
- an interchangeable core retained in the hollow interior of the barrel including a first end and a second end, the first end including a key hole;
- and
- a prong driver coupled to the second end of the interchangeable core, the prong driver including an engaging element, the engaging element extending from the prong driver into the first slot and the second slot in a direction perpendicular to the longitudinal axis,
- wherein when a proper key is inserted into the key hole of the interchangeable core and rotated in a first direction or a second direction opposite the first direction, the engaging element of the prong driver is rotated in the first direction or the second direction perpendicular to the longitudinal axis,
- wherein when the locking device is in a locked position, the engaging element is disposed through the second end of the first slot and the second end of the second slot such that the alignment of the second portion of the first slot perpendicular to the longitudinal axis prevents the barrel from sliding along the longitudinal axis, and
- wherein to unlock the locking device, the proper key is inserted into the key hole to rotate the engaging element such that the engaging element advances from the second end of the first slot to the middle point of the first slot and from the second end of the second slot to the first end of the second slot, thereby allowing the barrel to be advanced along the longitudinal axis in a direction away from the housing as the engaging element slides from the middle point of the first slot to the second end of the second slot along the longitudinal axis.
5 more elements
A locking device, comprising:
- a housing including a first end and a second end, the housing extending from the first end to the second end along a longitudinal axis, the housing further including an outer wall defining a hollow interior of the housing and a first surface on the second end of the housing, the hollow interior including an inner wall, the inner wall including a first slot extending from the first surface toward the first end of the housing;
- a barrel including a first end and a second end, the second end of the barrel disposed through the first end of the housing into the hollow interior of the housing such that the barrel is slidable along the longitudinal axis, the barrel further including an outer wall defining a hollow interior and a second slot disposed in the outer wall of the barrel, the second slot including a first side and a second side, the second slot further including a second surface that is recessed from the outer wall of the barrel and a first aperture configured to provide access to the hollow interior of the barrel;
- an interchangeable core retained in the hollow interior of the barrel, the interchangeable core including a first end and a second end, the first end including a key hole;
- a retaining piece disposed in the second slot, the retaining piece including a first portion and a second portion, the first portion extending perpendicularly to the longitudinal axis through the aperture of the second slot and into the hollow interior of the housing, the second portion extending from the first portion along the longitudinal axis and disposed adjacent to the second surface of the first slot such that at least part of the second portion of the retaining piece protrudes passed the outer wall of the barrel toward the exterior of the outer barrel;
- and
- a prong driver coupled to the second end of the interchangeable core and to the first portion of the retaining piece,
- wherein when a proper key is inserted into the key hole of the interchangeable core and rotated, the prong driver is rotated, thereby rotating the second portion of the retaining piece about the longitudinal axis such that the second portion of the retaining piece is advanced toward the first side or second side of the first slot,
- wherein when the locking device is in a locked position, the retaining piece and the second end of the barrel are disposed passed the second end of the housing and the second portion of the retaining piece is disposed toward the first side of the second slot such that the second portion of the retaining piece is adjacent to the first surface of the housing, thereby preventing the barrel from being slidably advanced toward the first end of the barrel along the longitudinal axis to an unlocked position, and
- wherein to unlock the locking device, the proper key is inserted into the key hole and rotated to rotate the second portion of the retaining piece from the first end of the second slot toward the second end of the second slot such that the second portion of the retaining piece is aligned with the first slot, thereby allowing the barrel to be advanced along the longitudinal axis in a direction toward the first end of the housing as the retaining piece slides along the longitudinal axis into the first slot.
6 more elements
Dependencies are inferred from the claim text.