Door locking handle assembly of pull-out and side-swinging lever-action type

A door locking handle assembly of a pull-out and side-swinging lever-action type, comprising:

• a casing (4) for fixedly mounting on a door;
• a locking shaft (12) rotatably mounted in a cylindrical portion (5) of a base-end portion of said casing (4) in an insertion manner, said locking shaft (12) being non-axially slidable in said cylindrical portion (5) and having its rear-end portion fixed to a catch plate (11);
• a retractable handle (19) which folds into a front concave portion (6) of said casing (4), and has its base-end portion pivoted to a front-end portion of said locking shaft (12) through a first cross pivot (17);
• a biasing spring (18) for swingably biasing said handle (19) in its projecting direction on said first cross pivot (17), said biasing spring (18) being mounted between said locking shaft (12) and said handle (19);
• a push button (27) which is connected with a front-end portion of said handle (19) through a second cross pivot (25) and is provided with a leg portion (28) projecting from its rear surface, said leg portion (28) having its front-end portion formed into an engaging-hook portion (29);
• a position-keeping spring (26) disposed between said handle (19) and said push button (27) to align said push button (27) with said handle (19) along an extension line of said handle (19);
• a lock unit (31) which is fixedly embedded in a lock-receiving portion (20) of a front-end portion of said handle (19), and comprises a rotor (32) with is rotated by a key (38) to move a lock plate (33) forward and backward so that said lock plate (33) engages with said leg portion (28) of said push button (27) to prevent said push button (27) from being depressed to swing on said second cross pivot (25);
• a socket-member spring (34) which is fixedly mounted in a front-end portion of said front concave portion (6) of said casing (4) and has a front-end bent portion (35) engaged with the engaging-hook portion (29) of said leg portion (28), so that said handle (19) is held in a thus depressed position;
• and
• said handle (19) being held in said front concave portion (6) of said casing (4) in a condition in which said lock plate (33) fixed to said rotor (32) of said lock unit (31) is moved to its projecting position to restrict said push button (27) in rotating motion on the second cross pivot (25).