CN1198998C - Lock with deadbolt protruding from lock box - Google Patents

Abstract

The invention relates to a lock (1) comprising a bolt (9) which projects from a lock housing (2), wherein a bolt tail (8) which is guided in the lock housing (2) and can be moved back by the action of a spring-loaded door handle follower (21) arm (20) and can be locked by means of a key, a lock cylinder (45), a second follower (47, 49) and the like by actuating the lock in advance of a tumbler and then forwards and backwards, wherein the tumbler which can be lifted by a locking fin (46, 48) is designed as a single-armed tumbler rod (24) which is provided with a locking groove (25, 26) in which a locking pin (16) is inserted on the bolt tail side and which is supported around a column (29) which is arranged on the lock housing side above a bolt head (10). The bolt tail (8) has a drive cam (19) fixedly connected thereto, on which an arm (20) of a door handle follower (21) acts, which moves out of the swivel region when the bolt (9) is in the forward locking position.

Description

Lock with deadbolt protruding from lock box

technical field

The invention relates to a lock in which a bolt protrudes from a lock box, the bolt tail of which is guided by movement in the lock box and which can be pulled back by the action of a spring-buffered door handle follower arm and which can be pulled back by means of The key, lock cylinder, second follower, etc. are locked forward and backward after the tumbler is lifted first through the manipulation of the lock. The tumbler that can be lifted by the lock wing is designed as a single-arm tumbler lever. Wherein it is inserted in the fixed distance groove of the fixed distance pin on one side of the deadbolt tail, and it is arranged around a column support arranged on one side of the lock box above the deadbolt head.

Background technique

Such locks are known on the market as glass door locks. The bolt tail is supported around the tenon of the tumbler, and the tumbler is buckled back on this tenon. The tumbler intersects with a locking socket of the bolt tail and extends into the movement area of the follower with an angled end. In addition, the tumbler is equipped with a locking lug which, depending on the position of the bolt, is either in front of or behind the shoulder of the lockbox. In this design, the bolt is always moved via the tumbler by means of the door handle follower.

Contents of the invention

The object of the invention is to design a lock of this type advantageously in terms of locking technology while achieving a simple construction.

This object is achieved by the feature that the bolt tail has a push lug fixedly connected thereto, on which the arm of the door handle follower acts, and when the bolt is in the forward locking position, the push lug The block moves out of the swing area.

The result of this design is the provision of a generally vertical lock which, in addition to its structural simplicity, is characterized by an advantageous design in terms of lockmaking technology. The tumbler is now no longer supported on the bolt tail, but around a post that is placed above the bolt head. The opening force acting on the head of the bolt when the bolt is locked forward is now transmitted via the locking pin directly into the tumbler and thus into the column on the side of the lock box, so that large counter-torque forces can be absorbed harmlessly. Locking the deadbolt forward and backward requires prior lifting of the tumbler and release of the stop pin so that the deadbolt can be locked by means of the locking wing acting on the tail of the deadbolt. It is stipulated that the fixed stroke groove is located next to the free end of the tumbler rod and the action point of the lock fin is generally in its center. This results in an advantageous leverage effect combined with a gentle locking. Furthermore, an advantageous feature consists in the elastic damping of the orange making lever relative to the lock box wall. The tumbler lever is therefore in its intended end position as intended. On the one hand it allows the bolt to escape when pulling on a door equipped with this lock; on the other hand it prevents the bolt from moving back by the tumbler when it is locked forward.

Another advantageous feature may be considered that the deadbolt tail has a push lug fixedly connected thereto, against which the arm of the door handle follower acts to push when the deadbolt is in the forward locking position. The bump moves out of the swivel. Contrary to the prior art, both the locking wing and the door handle follower act on the bolt tail. The tumbler is released by force applied by the door handle follower. When the bolt is not advanced into the locked position, the push cam extends into the region of the door handle follower arm. Conversely, the door handle follower idles after the deadbolt moves forward to complete locking. The push cam also drives the arm of the door handle follower while facing the bolt, which is pressed by the spring force, so that the door handle follower always returns to its starting position as required.

Furthermore, it is advantageous for locking technology if the push cam has a sliding surface which is designed to run obliquely for contact with the nose of the arm. The same lever ratio is therefore always present when the bolt is pulled back with the door handle follower. Another advantageous feature is that the arm of the door handle follower is held by the spring in an extended position parallel to the direction of movement of the bolt. Thus, the door handle follower is directly in operative connection with the push cam during its pivoting.

To achieve the object of the present invention, in a lock having a deadbolt protruding from the lock box, the bolt tail guided by the movement of the deadbolt in the lock box can be pulled by the action of the spring-buffered door handle follower arm. In addition, it is provided that the elastic force of the spring for the elastic damping of the door handle follower is adjustable. Due to this fact, the door handle drive can be provided or provided with a lever handle or knob. If the door handle follower is equipped with a lever handle, then there is a larger moment arm, so a higher spring force is desirable. If the knob is used instead, the spring force can be adjusted to a smaller value, so the knob can be easily turned to lock even though it is a knob. For this purpose, the spring action points fixed on the lock box can be moved, preferably from the outside of the lock box. Furthermore, it is provided that this spring is a tension spring acting on the follower arm. In this case, the spring-action point fixed to the lock box is formed by a pin which is movable inside the lock box. In order to vary the spring force, the latter can be moved between two positions in a longitudinal slot. In particular, the pin is fixed in one of its two end positions by means of a bayonet connection. For this purpose, the pin ends have flattened areas on opposite sides, which extend parallel to the walls of the groove in one of the positions in the groove section of the groove provided in the cover and the bottom of the lock, while the groove widened in cross section Another position within the segment is arranged transversely to the groove wall. To change the spring force it is therefore only necessary to turn the pin so that the flattened area is in alignment with the groove wall. The pin can change position after turning 90° in advance. For this purpose, there is a tool socket on its end face. It can be designed, for example, in the form of a slot for inserting a screwdriver bit, for example. In order to prevent the pin from dislodging on its own, the cross-sectionally widened groove section is designed with a bearing surface, which rests planarly against the edge section of the flattened area. In this variant, it is also provided that the bolt end can additionally be locked forwards and backwards after the tumbler has been moved forward by actuating the locking wings. The advantage with respect to the guiding technique results from the fact that the bolt tail is guided between the side walls of the two locks against them and elastically damped in the locking direction by the tension spring. Finally, a further advantageous feature of the invention is that the door handle follower has a fork-shaped recess defining the clearance and thereby surrounds the stop pin on the side of the lock box.

Description of drawings

A number of exemplary embodiments of the invention are described below with the aid of schematic diagrams. in:

1 is a view of a lock according to a first embodiment, wherein the bolt can be moved both by means of a lever handle and by means of a shaped lock cylinder;

Figure 2 is a view similar to Figure 1, but with the lock cover removed and showing the position in which the deadbolt can be pulled back by means of the door handle follower;

Fig. 3 Subsequent view of Fig. 2, now the bolt has been pulled back by means of the door handle follower;

Figure 4 is a view similar to Figure 2, but with the bolt in the forward locked position;

Figure 5 is a view similar to Figure 2, with the spring force acting on the door handle follower adjusted to a lower value;

Figure 6 is a partial enlarged view of line VI-VI in Figure 1;

Figure 7 bolt parts diagram;

Figure 8 is the top view of Figure 7, partially broken;

Fig. 9 view of tethering;

Fig. 10 top view of tumbler;

Figure 11 is a view of the lock with the cover removed according to the second embodiment, wherein the bolt can be moved by means of the locking wings of the second drive, where the bolt is in the normal position;

Figure 12 A view similar to Figure 11, but with the deadbolt pulled back by the door handle follower;

Figure 13 is the view when the deadbolt is in the forward locking position;

FIG. 14 corresponds to FIG. 11 , with the difference that the tension spring acts on the door handle follower with a lower spring force.

Detailed ways

The lock 1 according to the first embodiment has an elongated lock box 2, the length of which is approximately equal to twice the width of the lock. Starting from the lock base 3 upwards are two longitudinal side walls 4 , 5 which are connected to each other at the rear of the lock box 2 by an arcuately extending rear wall 6 . Conversely, the front wall 7 of the lock box 2 extends at right angles to the longitudinal side walls 4 , 5 .

The bolt tail 8 of the bolt 9 is guided between the two side walls 4 , 5 in the lock box 2 , and the bolt head 10 of the bolt 9 is prepared with an oblique insertion surface 10 ′ through the through hole 11 of the front wall 7 . Deadbolt tail 8 is a kind of fork design. On the shorter tine 8', one end of the tension spring 13 acts on the pin 12 emanating from this tine. The other end of the tension spring surrounds the upright 14 of the lock bottom 3, so the dead bolt 9 is subjected to the spring force when moving in the forward direction.

The other tine 8 "is about three times the length of the tine 8'. The inner side of the tine 8" is formed with a locking socket 15, and a stop pin 16 with a rectangular cross-section is arranged behind it. Above the stop pin, the end region of the fork 8 "is formed with a longitudinal groove 17 extending in the direction of movement of the deadbolt, into which a guide pin 18 on the bottom side of the lock is inserted. The bolt tail 8 fork 8" is in its The free end is designed with a push lug 19, which contacts the arm 20 of the door handle follower 21, which is mounted between the bottom of the lock 3 and the lock cover 22 arranged parallel to it at the rear of the lock box 2. The push lug 19 has an obliquely extending sliding surface 23 that engages with the nose 20' of the arm 20, and when the dead bolt 9 is in the basic position, the nose 20' is immediately below the push lug 19 so as not to hinder the forward movement of the dead bolt 9. .

The normal position of the deadbolt 9 shown in FIG. 2 is maintained by the tumbler lever 24 . The tumbler lever 24 is designed as a single-arm lever, and it is shaped on two fixed distance openings 25,26 in front and rear positions, and they are separated by a central crosspiece 27 at its narrow side facing the distance pin 16. In the normal position of the bolt 9, the central crosspiece 27 extends in front of the stop pin and thus prevents the bolt 9 from moving forward. Next to the fixed-range opening 26, the tumbler rod 24 is designed with an arc-shaped thickening zone 28, which stretches into the locking socket 15. The thickened region 28 is the point of action of the locking fin and extends generally in the center of the single-armed tumbler lever 24 . The other end of the tumbler rod 24 is supported above the deadbolt head 10 around a post 29 on the side of the lockbox. The fixed stroke openings 25 and 26 mentioned are on the contrary all located beside the free end of the tumbler rod 24, and this free end is shaped on an angled area 30. The tumbler lever 24 is supported by it on the cam 31 on the bottom side of the lock, so that the tumbler lever 24 is held in a defined basic position. The compression spring 32 acts on the tumbler lever 24 and forces it into the basic position according to FIG. 2 . The compression spring 32 itself bears on the side wall 4 of the lock box.

The door handle follower 21 has a fork-shaped notch 33 on its side opposite to the arm 20 , into which a stop pin 34 on one side of the lock box is inserted. In the basic position of the lock 1 , the position of the door handle follower 21 is shown in FIG. 2 . This position is maintained by a spring 35 acting on the arm 20 . One end of the spring surrounds the tongue 36 of the arm 20 . On the contrary, in order to change the spring force, the spring action point P fixed on the lock box is adjustable. For this purpose, the spring action point P can be moved. The spring 35 here is a tension spring. The spring action point P fixed on the lock box is formed by a pin 37 which is movable in the lock box 2 . The latter is movable between two positions in the longitudinal slot 38 of the lock base 3 and the lock cover 22 . The direction of the longitudinal groove 38 extends in the direction of the arm 20 of the door handle follower 21 . This longitudinal groove 38 is designed to secure the pin 37 in one of its two end positions by means of a bayonet-type connection. The ends of the pin 37 have opposite flattened areas 39 . The distance between them is slightly smaller than the distance between the groove walls 40 of the groove sections 41 of the lock bottom 3 and the lock cover 22 extending parallel to each other. Wherein, the distance between the slot section 41 and the arm 20 is shorter than that of the slot section 42 designed to be wider than the slot section 41 . The inner wall of the groove section 42 matches the shape of the outer wall of the pin 37 . If the pin 37 enters the groove section 42 and the flattened area 39 made by the end of the pin 37 is perpendicular to the direction of the groove wall 40, the spring 35 has a relatively large elastic force, as can be seen with the solid line for the pin 37 in Fig. 6 The location of the drawing.

In order to prevent the pin 37 from shifting on its own, the groove section 42 widened in the bottom of the lock 3 and the lock cover 22 is designed with a support surface 43 for the planar abutment of the edge portion of the flattened area 39 . These support surfaces 43 extend perpendicularly to the groove walls 40 .

After turning 90° in advance, the pin 37 can be converted into the position shown by the dotted line in Figure 6 and the position drawn by the solid line in Figure 5, so the spring 35 acts on the door handle follower 21 with less power. superior. This is selected when a knob, not shown, is assigned to the door handle follower 21 . If, on the other hand, the door handle follower 21 is equipped with a lever-type door handle 44 indicated by a dotted line in FIG. 1 , the pin 37 is selected in its position in the widened groove section 42 . In order to convert the position of the pin 37 from the outside, a tool socket 37' is formed on the end face of the pin 37 for inserting a screwdriver.

The locking bolt 9 can be locked forward or backward by means of a shaped lock cylinder 45 penetrating through the lock cover 22 and the lock bottom 3 . Its locking wing 46 cooperates with the tumbler lever 24 and with the locking socket 15 of the deadbolt tail 8 .

The lock works as follows:

If the door equipped with lock 1 not shown in the figure is pulled to its closed position, then the dead bolt 9 will avoid the inner direction of the lock due to the inclined insertion surface 10 ′. movement within the range. Then, when the door is in the closed position, the bolt 9 advances under the action of the tension spring 13 into the basic position according to FIG. 2 . From this position, the bolt can be pulled back by actuating the door handle, see Figure 3. To this end, the nose 20' of the arm 20 of the door handle follower 21 acts on the sliding surface 23 of the bolt tail 8 and thus moves the bolt 9 towards the inside of the lock. The rotational displacement of the door handle follower 21 is limited because the fork 33 ′ abuts against the stop pin 34 on one side of the lock box 2 . Spring 35 is tensioned during this process. This situation also occurs simultaneously with the tension spring 13 acting on the dead bolt 9 . If the door handle 44 is released, the door handle follower 21 returns to the original position, and now the other fork 33 "blocks against the other side of the stop pin 34. In addition, the tension spring 13 will lock the bolt 9 Move back to its basic position shown in Figure 2.

When the door is only in the closed position, the locking bolt 9 can be locked forwards by means of the profiled locking cylinder 45 . When the locking fin 46 is rotated counterclockwise, it presses against the thickened area 28 of the tumbler rod 24 and thus lifts the tumbler rod 24 , thereby placing the central crosspiece 27 over the stop pin 16 . Now, by inserting the locking wings 46 into the locking sockets 15, the locking bolt 9 can be moved forward and locked in the position according to FIG. 4 . When the pin fin 46 rotates for locking, it releases the tumbler lever 24, so the tumbler lever 24 turns under the action of the spring, so that its central crosspiece 27 comes behind the stop pin 16, so that the stop pin 16 is in position. Inside the fixed stroke port 26. In this way, dead bolt 9 cannot be pushed back. A corresponding rearward pressure is transmitted via the tumbler lever 24 into the post 29 on the bottom side of the lock. It is only possible to move the deadbolt 9 back with key actuation, to be precise, only after the tumbler lever 24 has been lifted beforehand and against the force of the tension spring 13 can the deadbolt 9 be moved.

If a knob not shown in the figure is used in the position of the door handle 40, the spring force acting on the door handle follower 21 should be reduced, and in this case the pin 37 is placed as shown in Figure 5. s position.

In the forward locking locked position, the push lug 19 is outside the trajectory of the arm 20 of the door handle follower 21, so that the door handle follower 21 is aligned with the tail of the deadbolt when moving by means of the knob or lever type door handle 44. 8 without contact.

The other embodiment shown in FIGS. 11 to 14 basically corresponds to the first embodiment. Accordingly, identical components are designated with the same numerals. The difference in this embodiment is that instead of the profiled lock cylinder 45 , a second second follower 47 is used which is accommodated in the lock base 3 and the lock cover 22 . Such a lock 1' can be used, for example, on toilet doors. The second follower 47 is equipped with a locking wing 48 which functions similarly to the locking wing 46 of the shaped lock cylinder 45 and is provided with two shoulders 56, 57 on one side of the lock box. In this lock 1', the second follower 47 is preferably provided with a knob on the inside of the door. The bolt 9 can then be retracted, as in the first embodiment, by means of the door handle follower 21 , see FIG. 12 . Furthermore, the bolt 9 can be locked forwards by means of a knob belonging to the second driver 47 on the door side, wherein its locking wing 48 cooperates both with the tumbler lever 24 and with the bolt end 8 . The position shown in FIG. 13 is thus reached. The opening of the door equipped with the lock 1 ′ firstly requires the withdrawal of the bolt 9 by means of the second follower 47 . The bolt 9 can then be pulled back completely by means of the door handle follower 21 .

If the door handle follower 21 is associated with a lever door handle 44 , the pin 37 is in the position shown in FIGS. 11 to 13 . The spring 35 then acts with greater force on the door handle follower 21 . When using a knob for the door handle follower 21 , the pin 37 is placed in the position according to FIG. 14 .

Yet another embodiment can basically correspond to the first embodiment. Instead of the profiled lock cylinder 44 , however, key sockets with lock wings are provided in the lock base 3 and in the lock cover, by means of which locks equipped with tumblers can be locked.

Claims (8)

1. lock, comprise a dead bolt (9) that stretches out from lock box (2), its moves the effect of door handle follower (21) arm (20) that the dead bolt tail (8) of guiding can be by spring buffer and pulls back in lock box (2), and can be by means of key, lock core (45), second follower (47,49) manipulation by lock after the system bolt lifts in advance forward and locking backward, can be by lock wing (46,48) the system bolt that lifts is designed to the lever tumbler (24) of single armed, it be provided with wherein be inserted in dead bolt tail one side decide journey pin (16) decide journey groove (25,26), and it is around column (a 29) supporting that is arranged in dead bolt head (10) top lock box one side, it is characterized by: dead bolt tail (8) has a fixedly connected with it promotion projection (19), the arm (20) of door handle follower (21) acts on and promotes on the projection, promotes projection and shift out the tow-away zone when dead bolt (9) is in forward locked position of coupler.

2. according to the described lock of claim 1, it is characterized by: decide journey groove (25,26) and be positioned at by the free end of lever tumbler (24), and lock wing application point (P) is substantially in lever tumbler central authorities.

3. according to claim 1 or 2 described locks, it is characterized by: lever tumbler (24) with respect to lock box sidewall (4) for spring buffer.

4. according to the described lock of claim 1, it is characterized by: promote projection (19) and be provided with a diagonally extending and be used for the slide plane (23) that contacts with the nose (20 ') of arm (20).

5. according to the described lock of claim 1, it is characterized by: the arm (20) of door handle follower (21) is remained along by spring (35) and is parallel to the direction extension location that dead bolt moves.

6. according to the described lock of claim 1, it is characterized by: dead bolt tail (8) can be additionally by operated lock wing locking forward and backward after system bolt one lever tumbler (24) moves in advance.

7. according to the described lock of claim 3, it is characterized by: dead bolt tail (8) between the sidewall (4,5) of two locks, reclining their guidings and by tension spring (13) along forward locking direction elastic buffer.

8. according to claim 1 or 5 described locks, it is characterized by: door handle follower (21) has the fork-shaped breach (33) in a definite space, and whereby round the backing pin (34) in lock box one side.

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