BG109086A - Single-pass door lock - Google Patents

Abstract

The single-pass door lock is used residentially and in business for locking of doors. It can be used as a basic or as a supplementary lock, as well as for locking metal cupboards and electric boards. It comprises a cover (12), box (1) in which a tongue (2) slips by means of projections (6) sliding in the two parallel rectangular cuts (11) machined in box (1), or by means of indentures (6a) sliding in projections (11a). Tongue (2), by means of a cylindrical pin (7) is pivotally connected to shuttle (3), which is running in groove (8) made in its front part. In the rear part of shuttle (3) a special seat (22) is made which houses the moving element (4) which, under the effect of pin (14) and due to the arc-type cuts (13 and 18) supplied into cover (12) or box (1), makes joint arc-like motion with the shuttle (3), pushing the tongue (2) completely out.

Description

TECHNICAL FIELD

The invention relates to a one-door lock that can be used in the home and door locking industry used as a primary or auxiliary lock, as well as for locking metal cabinets, switchboards, etc.

• · · · · • · · · · · · · · · ·

BACKGROUND OF THE INVENTION

A lock is known [1], consisting of a box, a lid which is indispensably secured to the box by means of flanged bushings and columns, a tongue bearing a T-shaped moving element which is pressurized by a spring. The bushes and columns form through-lock threaded threaded holes, which together with the threaded hole made in the tongue allow for the installation of an additional mechanism for triangular locking.

The downside of this lock is the short stroke of the tongue.

There is a known lock [2] consisting of a lid, a box in which a tongue slides, driven by a moving element, which is pressurized by a spring, and which slides into a cavity made in a fixed tongue portion, such as this actuator is provided with a guide member which moves in a curved notch made in the box and slides along with the tongue and also transversely to its direction of motion, under the action of a pin connected to a rotor mounted in a housing, fixed to the box, rotating the rotor with a key.

The disadvantage of this lock is that when the thumb is detached from the actuator, the tongue has passed only 3/4 of its stroke, and the remaining 1/4 of the stroke passes under the pressure of the spring and the inclination of the notch made in the box. This is a prerequisite for pressing the tongue in the direction opposite to its exit from the lock, to return it to the box.

SUMMARY OF THE INVENTION

It is an object of the invention to provide a lock with an increased travel of the tongue, while ensuring its steady running, excluding the possibility of reversing the tongue into the lock when accidentally pressed.

To achieve this, a lock consisting of a box, lid, shutter, tongue, moving element, spring, finger connected to a rotor is mounted, which is mounted in a housing fixed to the box. The shutter is movably secured to the box or lid by means of its two cylindrical projections located on one side of the shuttle, the projections being mounted to an arc notch made on the box or lid in such a way that it is curved down the side in the direction of tongue out of the box. In the back of the shuttle is made a bed in which is located the moving element, which is pressurized by the spring on its upper side and the thumb on its lower side. As a result, the moving element performs a reciprocal reciprocating motion combined with an arc movement. The moving element, by means of a tooth made on it, is movably attached to ·· ♦ ·

the lid or box ^ as the tooth being mounted in another arc notch made on the lid or box in such a way that it is curved down from the side of the tongue exit direction from the box, and the two closed ends of the notch end with smooth pads, on which in the two extremities of the tongue falls the tooth of the moving element. This locks the tongue in the locked and unlocked position, respectively. On the other hand, the shuttle is hinged to the tongue, the connection being made by means of a cylindrical pin fixed to the tongue moving in a groove made in the front of the shuttle.

The tongue, in turn, is movably mounted to the box or lid by means of the projections located in its periphery, mounted in parallel, rectangular notches made in the box or lid and arranged in parallel to the direction of movement of the tongue.

There is also an embodiment of the lock in which the tongue is movably mounted to the box and lid by means of the recesses located on its two sides, mounted in parallel rectangular projections made in the box and in the lid and arranged parallel to the direction of movement of the tongue .

According to the invention, it is possible to mount protective caps of steel or plastic to the lock by means of columns and screws passing through intended openings.

• · · · · · · · · · · · · · · · · · · · · · · · · · · · · · ·

The advantages of the lock according to the invention are expressed in the fact that, thanks to the introduced shuttle and its pivoting to the tongue, a longer tongue movement is achieved, and, on the other hand, due to the provided joint arc movement of the shuttle and the moving element, the shuttle remains up to the last moment in a locked position with the thumb, as a result of which no accidental circumstances can move the tongue back into the lock

The foreseen ability to protect the lock by means of lids makes its operation more stable, with the protective lids preventing the latch from getting dirty, which could penetrate the notches made in the lid and the box and cause it to lock.

EXPLANATION OF THE FIGURES Attached

The invention is explained in more detail with the aid of the accompanying figures, of which:

Figure 1 is a front view of the lock without cover, with the tongue completely retracted;

Fig. 2 is a front view of the lock with a lid, when the moving element is first fastened;

Fig. 3 is a front view of the lock with a lid, with the tongue extending as far as possible and a second (final) fastening of the moving element;

• · · · · · · · · ♦ Μ

FIG. 4 is a front view of the lid and illustrates the arrangement of the arc notched on both sides to secure the moving element; FIG.

Fig. 5 is a rear view of the lock and illustrates the location of the arc notch for securing the shuttle;

Fig. 6 is a front view of the lock without cover, in the variant embodiment, with the tongue completely retracted;

Fig. 7 is a front view of the lock with the lid, in the variant embodiment, the first fastening of the moving element;

Fig. 8 is a front view of the lock with the lid, in the variant embodiment, with the maximum tongue out and a second (final) fastening of the moving element;

Fig. 9 is a front view of the lid, in a variant embodiment of the lock, and illustrates the arrangement of the arc notch, curved on both sides for securing the moving element;

FIG. 10- is a rear view of the lock, in the embodiment, and illustrates the arrangement of the arc notch for securing the shuttle;

FIG. 11 is an axonometric view of the lock and illustrates the additional mounting of protective caps.

EXAMPLES FOR THE IMPLEMENTATION OF THE INVENTION

An exemplary embodiment of the lock according to the invention is shown in FIG. 1, 2, 3, 4, 5. The lock consists of a box 1, a cover 12, a tongue 2, a shutter 3, a moving element 4, a spring 5, a pin 14, a rotor 15, a housing 16. The shutter 3 is movably attached to the box 1 with the help of its two cylindrical projections 9 located on one side of the shutter, the projections 9 being movably mounted to the arc section 18. The arc section 18 is made on the box 1 in such a way that it is curved down the side of the exit direction. in the language of the box. In the rear of the shuttle 3 is made a bed 22, which is housed a moving element 4, which is pressurized by a spring 5 on its upper side and the thumb 14 on its lower side. As a result, the moving element 4 performs a reciprocating reciprocal motion combined with an arc movement. The moving element 4, by means of the tooth 10 made on it, is movably attached to the lid 12, the tooth 10 being mounted in the arc section 13. The arc section 13 is made on the lid 12 in such a way that it is curved down from the side the direction of the tongue's exit from the box. The two curved ends of the cutout 13 end with smooth pads 13a and 13b, on which the tongue 10 of the traveler falls in the two end positions of the tongue.

• · · · · · · · · · · · · · · · · · · · · · · · · · · · · Element 4, thus locking the language in the locked and extremely unlocked position. The shutter 3 is connected in its front hingedly to the tongue 2. The connection is made by means of a cylindrical pin 7, fixed on the tongue 2, moving in the channel 8, made in the front of the shuttle 3. The tongue 2 is movably mounted on the box 1 by means of the projections 6 at its periphery, mounted in parallel rectangular recesses 11, made in the box 1 and arranged parallel to the direction V of movement of the tongue 2.

According to the invention, embodiments are also provided (not shown in the figures), one of which is an arc notch 18 arranged on the lid 12 and an arc notch 13 disposed on the box 1, while in another embodiment both the notch 18 and the notch 13 are located on the box 1 or lid 12. There is also an embodiment according to which the notches 11 are arranged on the lid 12.

In FIG. 6, 7, 8, 9 and 10 show an embodiment of the lock according to which the tongue 2 is movably mounted to the box 1 and the lid 12 by means of the recesses 6a disposed on its two sides, respectively mounted in rectangular projections 11a made in the box. 1 and in cover 12 and parallel to the direction of travel V of tongue 2.

In FIG. 11 illustrates an embodiment of the invention in which protective caps 19 of steel or plastic can be fitted to the box 1 and lid 12 by means of columns 21 and screws 20 passing through the intended through holes 20a.

SUMMARY OF THE INVENTION

The one-way lock according to the invention is used as follows. Insert the key 17 in the keyhole mounted in the lock and according to FIG. 1, 2, 3, 4, 5 to perform a lock operation, rotate clockwise. The pin 14 of the lock locks the actuator 4 while at the same time, under the influence of the rotation of the pin 14, the actuator 4 moves by means of the tooth 10 in the arc notch 13 made in the lid 12 or the box 1. By performing an arcuate movement, the actuator 4 shuttle 3, forcing it to perform reciprocating and arcuate movement through its cylindrical projections 9 in the arc notch 18 made on the box 1 or lid 12. In doing so, the shuttle 3 pushes the tongue 2 out, which moving in the V direction by sliding through the projections 6 into the parallel notches 11 made on the box 1 or the lid 12. In the embodiment according to FIG. 6, 7, 8, 9 and 10 language 2 is

Moves through the recesses 6a, sliding parallel rectangular projections 11 made on the box 1 and the lid 12. As it continues to move outward, the front of the shuttle 3 is lowered. due to the hinge connection between the cylindrical pin 7 fixed on the tongue 2 and the groove 8 made in the front of the shuttle 3. As a result of this movement, the shuttle 3 remains secured to the thumb 14

until the tongue 2 is completely outwards. At the end of the locking operation, the tooth 10 of the drive element 4 falls into the closed portion of the notch 13 and is positioned on the pad 13a, thereby keeping the tongue 2 locked until the unlocking operation begins. In the unlocking operation, the key 17, respectively, of the thumb 14 is rotated in the opposite direction (clockwise) and the movements of the shuttle 3 and the moving element 4 are repeated in reverse order, with the thumb 14 being detached from the shuttle 3 after the tongue 2 is completely put away.

References:

[1] BG106532 [2] EP1103679

Claims (10)

Patent Claims 1. One-way lock consisting of a box, a lid, a moving element, a spring, a pin connected to a rotor, which is mounted in a housing fixed to the box, characterized in that the shutter (3) is movably fixed on one side. by means of its cylindrical projections (9) to an arc notch (18) made in the box (1) or lid (12), a bed (22) having a movable element in the back of the shutter (3). (4), pressed on its upper side by a spring (5) and on its underside by a finger (14), with the moving element (4) fixed on movable by means of a tooth (10) in an arc notch (13) made on the lid (12) or box (1), in turn, said shuttle (3) being pivotally connected to the tongue (2) by means of a cylindrical pin ( 7) fixed to the tongue (2) and groove (8) made in front of the C shuttle (3), said tongue (2) being movably mounted through projections (6) in rectangular cutouts (11) made in the box (1) or the lid (12) and arranged parallel to the direction of travel V of the tongue (2) or through the recesses (6a) mounted on both sides of the tongue, respectively mounted to the support Our rectangular protrusions (11a) made in the housing (1) and cover (12) • · ·· parallel to the direction of movement V in language (2) Lock according to claim 1, characterized in that the arc notch (18) is made on the box (1) or the lid (12) so that it is curved down the side of the direction of projection of the tongue from the box. Lock according to claim 1, characterized in that the arc notch (13) is made on the lid (12) or the box (1) so that it is bent downwards from the side of the tongue outlet direction from the box. Lock according to claims 1 and 3, characterized in that smooth platforms 13a and 13b are made at the two closed ends of the arc section (13). 5. The lock according to claim 1, characterized in that the moving element (4) has a cross section with a "T" shape. Lock according to claims 1 and 5, characterized in that the lower front part of the moving element (4) is flat. Lock according to claims 1 and 3, characterized in that the notch (13) is made on the lid (12), while the notches (18) and (11) are made on the box (1). Lock according to claims 1 and 3, characterized in that a notch (13) is made on the box (1), while notches (18) and (11) are made on the lid (12). Lock according to Claims 1, 2 and 3, characterized in that both the recess (13) and the recesses (18) and (11) are made on the lid (12) or on the box (1). • · Lock according to claim 1, characterized in that protective caps (19) of steel or plastic are fitted to the box (1) and the lid (12) by means of columns (21) and screws (20) passing through the intended passageways. openings (20 a).