【発明の名称】ドア及びその類似物内に取付けるタイプのラッチ構造体

Japanese Patent JPH0796864

B2

The doorlatch may have an exterior free knob rotation which is in the knob collar and is tied through cam means for non-engagement or engagement to drive the latch bolt. If the doorlatch has an exterior key operated lock, the cam means may be shifted by that lock for driving the latch. The cam means may also be shifted by an interior control, such as a turn button of an interior knob. Various combinations of exterior knobs with or without key locks and interior knobs may be provided, including the freely rotatable mechanism as desired. The front end loading may include a cylinder with plug assembly for the doorlatch which may have the plug rotated 180 degrees out of phase with the cylinder, the assembly then inserted and the plug rotated back to normal. A flange is provided beyond the lock cylinder on the plug which engages behind an inward depression for controlling the proper rotation during and after assembly. During assembly and removal of the lock cylinder and plug, a torque blade tying the lock with the remainder of the doorlatch must be temporarily axially disengaged either by a long cylinder removal key inserted during assembly or an operable connection to the interior thumb bar.

WO/2004/035969	ENHANCED SECURITY CATCH ASSEMBLY FOR RETAINING A HANDLE ON A SPINDLE
JPH068207	[Name of invention] Insertion / removal handle device with lock mechanism
WO/2002/048486	A LATCHING MECHANISM

Arnold Seagate
Thomas S S Fu

JP20619585A

October 18, 1995

September 18, 1985

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M Heart Inc.

E05B3/00; E05B9/08; E05B55/00; E05B63/10; (IPC1-7): E05B55/00

Minoru Nakamura (6 outside)

Next Patent: ステアリングロック装置