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

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

• a housing (2) fixedly mounted on a door (1) which is swingably mounted on a stationary frame (11);
• an operating handle (3) which has at least its main body portion retractably received in said housing (2) and its proximal-end portion pivoted to a front-end portion of a main locking shaft (4), a lock unit (5) which is incorporated in said operating handle (3) and provided with a rotor (6) which is provided with a keyhole (9);
• and, a stopper plate (8) which is connected with said rotor (6) and releasably engaged with a latch portion (7) provided in the side of said housing (2), wherein said operating handle (3) is released from said retracted position in said housing (2) when a key (10) inserted into said keyhole (9) is rotatably driven in a suitable direction, which permits said operating handle (3) thus released from said retracted position to side-swing and rotatably drive said main locking shaft (4) to unlock said door (1) from said stationary frame (11), the improvement wherein:
• a solenoid (12) is provided with a plunger (14) and fixedly mounted on a rear surface of said housing (2);
• said latch portion (7) is formed in a receiving lever plate (13);
• said receiving lever plate (13) is pivoted to each of said housing (2) and said plunger (14), and rotatably biased by a spring (15) in a direction in which said latch portion (7) of said receiving lever plate (13) is engaged with said stopper plate (8);
• and
• said latch portion (7) of said receiving lever plate (13) is released from said stopper plate (8) when said solenoid (12) is energized to pull back said receiving lever plate (13).