SU21721A1 - Key for lock with retractable handle and bolt - Google Patents

Description

A key with a retractable handle, fitted with flat springs automatically extending when the handle is inserted into the lock body, has a hook at one end, and the usual shaped plate at the other end and for inserting the insert plate into the lock when opening it passes through two slots in the lock walls.

In FIG. 1 shows a sectional view of the lock; FIG. 2 - side view; FIG. 3 - view from the bottom; FIG. 4 and 5-key lock; FIG. 6 - shaped plates for the key; FIG. 7 is a view of the handle of the lock; FIG. 8 is a view of the bow in section 45 of FIG. 7; FIG. 9 - guide pins of a lock of various profiles.

The proposed key is designed for a lock with a retractable handle 2, fitted at one end with flat springs 9 set at an angle to each other, automatically opening when the handle 2 is inserted into the body 1 of the lock, and at the other - a spiral spring 8, facilitating the removal of the handle from the lock body when opening the last key. The key consists of a stalk with hook 5 located on its ends and a shaped plate b, one of the notches of which Vl is intended to act on the arms of the springs 29,

and the other serves to guide the key in the lock with the pin 7 inside the lock, for which it has a profile corresponding to the cross-section profile of the pin 7. The lock is provided with two cuts 3 and 4 for the key, one of which is T-shaped located in the lock cover, the other is rectangular, located in its lower wall.

When the key is opened with a key, the key end, fitted with a hook 5, is inserted into the T-shaped slot 3 of the lock and withdrawn through the slot 4, with the end of the key with the shaped plate 6 remaining inside the lock. By moving the end of the key with a shaped plate inside the lock one of the notches along the guide pin 7 and its other notch act on the springs 9 of the arms 2, as a result of which the compressed notches of the plate b. Spring 9 release the bow, which is pushed out of the lock body by the spring 8.

The subject matter of the invention.

A key for a lock with a retractable bow and a slide consisting of automatically sliding flat springs at

The ' of the arm into the body of the lock, characterized in that its stalk (Fig. 4. And 5) is provided with a hook 5 at one end, and "with the other end with a shaped plate b of Fig. 4-6) of the type already known, length.; Which key is inserted into the lock in the lid of the latter. T-shaped

slot 3 (fig. 2), and in the lower wall of the lock, a rectangular hole 4 with a rounding on the narrow side (figs 1 and 3), designed to bring the key hook 5 outwards after skipping the said hook through the vertical slit 3 of the slot 3 in the cover the castle.

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