US 2011/0271723 A1Published application

Cylinder lock with profiled keyway

AssigneeWinloc AG

InventorBo WIDÉN

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Abstract

A cylinder lock with a rotatable key plug (112) having a profiled keyway (113,116), the keyway being configured to accommodate an elongated, substantially flat key blade (120) with a longitudinal groove (122). The keyway in the key plug has two opposite lateral sides and a profile rib (150) located at a substantially flat lateral side. The profile rib has a downwardly projecting tongue portion (161) configured to extend inside the profile groove (122) upon inserting the key (120) into the key plug (112) of the lock, and the tongue portion of the profile rib is extended downwardly into a lowermost, massive end portion (162) which has two opposite side surfaces (163,164) and a lowermost transverse end surface (165) which is substantially flat or slightly curved. The lowermost, massive end portion (162) extends downwardly in a direction which is parallel to a central longitudinal plane (A′) through said keyway, and the lowermost transverse end surface (165) extends substantially in a plane which is perpendicular to a the central longitudinal plane (A′).

Claims12

Dependent claims

A cylinder lock with a rotatable key plug (112) having a profiled keyway (113,116), said keyway being configured to accommodate an elongated, substantially flat key blade (120) having a longitudinal groove (122), wherein

said keyway has two opposite lateral sides, one of which is substantially flat with a lower part (118) thereof lying substantially in the same plane as an upper part (117) thereof,
and a profile rib (150) located at said substantially flat lateral side,
said profile rib having a downwardly projecting tongue portion (161) configured to extend inside said profile groove (122) upon inserting said key (120) into said key plug (112) of the lock, and wherein
said tongue portion of the profile rib is extended downwardly into a lowermost, massive end portion (162) which has two opposite side surfaces (163,164) and a lowermost transverse end surface (165) which is substantially flat or slightly curved,
said lowermost, massive end portion (162) extending downwardly in a direction which is parallel to a central longitudinal plane (A)′) through said keyway, and
said lowermost transverse end surface (165) extending substantially in a plane which is substantially perpendicular to a said central longitudinal plane (A′).

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/184,305Filed 15 Jul 2011
Priority: SE 0900207-218 Feb 2009
Published: 10 Nov 2011
Term ends: Not estimatedThe source records don’t support an estimate.

Classification15 codes

E05B 19/0029
Key profiles: characterized by varying cross-sections of different keys within a lock system
E05B 19/0017
Keys; Accessories therefor: key profiles
E05B 27/0078
Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in: asymmetrical tumbler pins, e.g. with a key operating…
E05B 27/0082
Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in: side bar locking

Family

Application12/866,204Division · filed 4 Aug 2010
Application13/080,339Continuation · filed 5 Apr 2011
Application13/184,305Continuation
Application13/080,339Division
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From the US filing history. Foreign family members aren’t listed.