Door locking handle assembly of double lock type

In a door locking handle assembly of a double lock type having a construction in which:

• a handle holder (10) is mounted on a front surface (B1) of a door (B) by means of a screw (11), said screw (11) passing through said door (B) from a rear surface (B2) to fix said handle holder (10) to said front surface (B1) of said door (B);
• a handle shaft (12) extending in a direction perpendicular to the plane of said door (B) is mounted on a proximal end portion of said handle holder (10);
• a door handle (15) has a proximal end portion mounted on a front end portion (13) of said handle shaft (12) through a pivot (14) extending in a direction perpendicular to a longitudinal axis of said handle shaft (12), said door handle (15) having a distal end portion swung between a folded position and a raised position thereof in a reciprocating manner;
• and, a catch plate for locking said door (B) to a stationary frame element is fixedly mounted on a rear end portion (16) of said handle shaft (12), said rear end portion (16) appearing in said rear surface (B2) of said door (B), the improvement wherein:
• a first lock (30) and a second lock (40) have their rear end portions fixedly mounted on an inner surface of a free end portion (17) of said door handle (15) and an inner surface of said handle holder (10) respectively, in a manner such that said locks (30,40) are adjacent to each other in arrangement;
• said first lock (30) and said second lock (40) are provided with a first key (K1) and a second (K2), respectively, to permit a user to lock and unlock said door handle (15) using at least one of said keys (K1, K2), each of said first lock (30) and said second lock (40) is constructed of a cylinder lock;
• said first key (K1) is inserted into said first lock (30) of said handle holder (10), and turned to rotate a first rotor (31) of said first lock (30), so that a first movable locking element (32) is moved to a locked position adjacent to said free end portion (17) of said door handle (15), wherein said first movable locking element (32) is constructed of a cam plate;
• and
• said second key (K2) is inserted into said second lock (40) of said door handle (15), and turned to rotate a second rotor (41) of said second lock (40), so that a second movable locking element (42) is moved between:
• a locked position in which said second movable locking element (42) is engaged with said first movable locking element (32);
• and an unlocked position in which said second movable locking element (42) is disengaged from said first movable locking element (32);
• wherein both said locked position and said unlocked position of said second movable locking element (42) are adjacent to said first movable locking element (32);
• and, said second movable locking element (42) is constructed of a latch plate attached to said first rotor (31) by an eccentric pin (45).