EP3299545B1 - Spring pack with connecting rod control - Google Patents

Description

The invention relates to a lock which has a rotatably mounted rotating element, a linearly displaceable sliding element and a transmission device. The transmission device is connected to the rotating element and to the sliding element.

From document EP 2 264 265 B1 a lock with a lock housing and a lock nut rotatably mounted in the lock housing is known. In this case, the lock nut is connected in terms of gear mechanism to a pull rod which is linearly displaceable in the lock housing. For this purpose, a hanging eye is formed on the pull rod, which engages on a radially protruding hook of the lock nut. A rotation of the lock nut causes a linear displacement of the drawbar. The pull rod is connected to a compression spring, which acts as a return spring for the lock nut.

document DE 199 15 218 A1 discloses a lock according to the preamble of claim 1.

It is the object of the present invention to create a lock, the lock being structurally simple with high functionality at the same time.

This object is achieved by the subject matter of claim 1 of the present invention.

The lock according to the invention for a door or a window has a lock housing in which a lock mechanism, preferably with a lock bolt and / or lock latch, is mounted. The lock mechanism has at least one rotary element which is rotatably mounted in a rotary bearing in the lock housing. The lock mechanism has at least one sliding element, which is linearly displaceably mounted in a sliding bearing in the lock housing. The at least one sliding element is acted upon by a spring, the spring being supported on the one hand on the at least one sliding element and on the other hand indirectly or directly on the lock housing, preferably on the sliding bearing of the sliding element. The lock mechanism has a transmission device which is connected to the at least one rotating element and to the at least one sliding element, and which transmits the rotational movement of the at least one rotating element to the at least one sliding element and / or transmits the movement of the at least one sliding element to the at least one rotating element . By means of the spring, the rotary element is acted upon from the actuated position into a basic position via the transmission device.

It is essential in the lock according to the invention that the transmission device has at least one connecting rod. The connecting rod enables an optimal conversion of the rotary movement of the rotary element into a linear movement of the sliding element, and vice versa. This prevents a torque acting transversely to the linear movement of the sliding element from being transferred to the latter during the rotation of the rotating element. Larger angles of rotation of the rotating element or smaller dimensions of the lock can thus also be realized according to the invention without undesirable lateral torsional forces acting on the sliding element.

In preferred embodiments of the lock it is provided that the sliding element, the associated spring and the associated sliding bearing form a spring sliding element assembly.

In preferred embodiments of the lock it is provided that the spring is designed as a helical spring or as a leg spring.

In preferred embodiments of the lock it is provided that the helical spring is designed as a tension spring or as a compression spring or as a torsion spring.

In preferred embodiments of the lock it is provided that the sliding element is designed as a pull rod acted upon by the spring or as a pressure rod acted upon by the spring.

In preferred embodiments of the lock it is provided that the at least one rotary element is designed as a lock nut or as part of a lock nut. The lock nut can hold a square of a doorknob or a door handle. The advantage here is that Rotary element or the lock nut is spring-loaded in a basic position. In the basic position, the door handle is arranged horizontally. This means that the door handle is always aligned horizontally due to the spring-loaded lock nut.

In preferred embodiments of the lock it is provided that the at least one rotary element is designed as a rotatable nut part of the lock nut, preferably as an outer nut part or as an inner nut part.

In preferred embodiments of the lock it is provided that the lock nut is designed as a multi-part nut with a rotatable outer nut part and a rotatable inner nut part.

In preferred embodiments of the lock it is provided that the multi-part lock nut has a center nut which is arranged between the first rotatable outer nut part and the second rotatable inner nut part.

In preferred embodiments of the lock it is provided that the center nut interacts with the lock bolt and / or the lock latch via a lock gear.

In preferred embodiments of the lock it is provided that the rotary element designed as a lock nut preferably forms a lock nut assembly together with the associated pivot bearing.

In preferred embodiments of the lock it is provided that the rotatable outer nut part with the first sliding element via a first Connecting rod of the transmission device is connected and the rotatable inner nut part is connected to the second sliding element via a second connecting rod of the transmission device.

In preferred embodiments of the lock it is provided that the first sliding element is acted upon by a first spring, which is preferably designed as a return spring, and that the second sliding element is acted upon by a second spring, which is preferably designed as a return spring.

In preferred embodiments of the lock, it is provided that a lock nut assembly with a return spring device is formed by the lock nut with the outer nut part, the inner nut part and the center nut, preferably together with the pivot bearing assigned to the lock nut; by the first sliding element with the assigned first spring, preferably together with the assigned sliding bearing; by the second sliding element with the assigned second spring, preferably together with the assigned sliding bearing; and the transmission device having the first connecting rod that connects the outer nut part to the first sliding element and the second connecting rod that connects the inner nut part to the second sliding element.

In embodiments of the lock according to the invention it is provided that the at least one connecting rod of the transmission device is articulated with its one end to the sliding element and with its other end to the rotary element eccentrically to the axis of rotation of the rotary element.

In preferred embodiments of the lock, it is provided that the rotary element has a connecting pin arranged eccentrically to the axis of rotation and the connecting rod has a connection opening which is complementary to this pin, or that the connecting rod has a connection pin and the rotary element has an eccentric to the axis of rotation a connection opening which is complementary to the pin of the connecting rod.

In preferred embodiments of the lock, it is provided that the sliding element has a connecting pin and the connecting rod has a connection opening which is complementary to the pin of the sliding element, or that the connecting rod has a connecting pin and the sliding element has a connecting opening which is complementary to the pin of the connecting rod.

In preferred embodiments of the lock it is provided that the at least one connecting rod of the transmission device is designed as a rigid one-piece and / or rigid one-piece body, preferably as a rigid link.

According to the invention, the at least one connecting rod of the transmission device is designed as a circular-section-shaped or arc-shaped or trapezoid-shaped body in such a way that the outer contour of the rotary element is left out.

In order to achieve a compact design, it can be provided that the sliding element is arranged on one side of the rotating element and the at least one connecting rod of the transmission device connects the sliding element to the rotating element such that one end of the connecting rod is connected to the sliding element and the other end of the connecting rod is connected to the rotary element via a bearing which is arranged on the half of the rotary element (4) facing away from the sliding element.

This enables the sliding element to be positioned close to the rotating element. In interaction with the connecting rod having a bulge, it is possible to arrange the sliding element together with the spring close to the rotating element, preferably directly adjacent to the rotating element, without impairing or restricting the angle of rotation of the rotating element or without causing an undesired moment acts on the sliding element.

Fig. 1

eine Darstellung des erfindungsgemäßen Schlosses bei geöffnetem Schlosskasten in der Sperrstellung bei vorgeschlossenem Schlossriegel und unbetätigter Handhabe;

Fig. 1a

eine Detailansicht des Schlosses im Bereich der Schlossnuss und der Rückstellfeder bei unbetätigter Handhabe;

Fig. 1 b

eine perspektivische Schrägansicht der Schlossnuss und der mit der Schlossnuss verbundenen Federeinrichtung bei unbetätigter Handhabe;

Fig. 1 c

eine Rückansicht der Schlossnuss und der mit der Schlossnuss verbundenen Federeinrichtung bei unbetätigter Handhabe;

Fig. 2

ein Figur 1 entsprechende Darstellung des Schlosses in der Entriegelungsstellung bei rückgeschlossenem Schlossriegel und betätigter Handhabe;

Fig. 2a

eine Detailansicht des Schlosses im Bereich der Schlossnuss und der Rückstellfeder bei betätigter Handhabe;

Fig. 2b

eine perspektivische Schrägansicht der Schlossnuss und der mit der Schlossnuss verbundenen Federeinrichtung bei betätigter Handhabe;

Fig. 2c

eine Rückansicht der Schlossnuss und der mit der Schlossnuss verbundenen Federeinrichtung bei betätigter Handhabe.

The invention will now be explained in more detail on the basis of exemplary embodiments. Show it

Fig. 1

a representation of the lock according to the invention with the lock case open in the locked position with the lock bolt locked and the handle not operated;

Fig. 1a

a detailed view of the lock in the area of the lock nut and the return spring when the handle is not actuated;

Fig. 1 b

a perspective oblique view of the lock nut and the spring device connected to the lock nut when the handle is not actuated;

Fig. 1 c

a rear view of the lock nut and the spring device connected to the lock nut when the handle is not actuated;

Fig. 2

a Figure 1 corresponding representation of the lock in the unlocked position with the lock bolt closed and the handle actuated;

Fig. 2a

a detailed view of the lock in the area of the lock nut and the return spring when the handle is actuated;

Fig. 2b

a perspective oblique view of the lock nut and the spring device connected to the lock nut when the handle is actuated;

Fig. 2c

a rear view of the lock nut and the spring device connected to the lock nut when the handle is actuated.

The lock 1 according to the invention is in the Figures 1 and 2 shown. The lock 1 has a lock housing 1a, in which a lock mechanism is mounted. The lock mechanism comprises a lock latch 2, a lock bolt 3, a lock nut 4 and a gear slide 5, which are movably mounted in the lock housing 1a. Furthermore, the lock 1 has a receptacle for a locking cylinder.

The lock nut 4 is provided with a receiving opening for receiving a mandrel of an operating handle. The actuating handle is not shown in the figures. When the actuating handle is actuated, the lock nut 4 is moved out of the position into Figure 1 counterclockwise by an angle of approx. 30 ° to the position in Fig. 2 turned. The lock nut 4 is in this case connected to the lock latch 2 and the lock bolt 3 via the gear slide 5.

The lock nut 4 is connected to a return spring device 6 which moves the lock nut 4 from the actuated position after the end of the actuation Fig. 2 in the unactuated basic position in Fig. 1 defers.

The lock nut 4 is designed as a multi-part nut, see Fig. 1b , 1c , 2 B , 2c . In the exemplary embodiment shown, the lock nut 4 comprises a rotatable outer nut part 4a, a rotatable inner nut part 4i and a intermediate center nut part 4m. The outer nut part 4a and the inner nut part 4i each have a receiving opening 4aa, 4ia for the form-fitting insertion of a mandrel of an actuating handle. The actuating handles with the mandrel are not shown in the figures. The center nut 4m has a passage area 4d which is coaxial with the receiving opening 4aa of the outer nut part 4a and the receiving opening 4ia of the inner nut part 4i. A separating element 7 is arranged in the passage area 4d of the center nut part 4m and blocks the passage area for the passage of a mandrel of the actuating handles. The center nut part 4m interacts with the gear slide 5 of the lock mechanism.

The lock 1 shown in the figures is designed as a so-called panic lock. In the panic lock, the inner nut part 4i is permanently mechanically coupled to the center nut part 4m. When the actuating handle connected to the inner nut part 4i is actuated, the lock 1 can be unlocked manually at any time. Here, when the actuating handle connected to the inner nut part 4i is actuated, the lock bolt 3 is drawn into the lock housing 1a and the blocking of the lock latch 2 against entry into the lock housing 1a is released. The lock 1 is then unlocked. This unlocked position of the lock with the drawn lock bolt 3 is in Figure 1b shown.

The outer nut part 4a and the inner nut part 4i are connected to a return spring device 6, namely the outer nut part 4a with a return spring 6a and the inner nut part 4i with a return spring 6i. The return spring 6a and the return spring 6i are designed as coil springs, which are the associated slide designed as a pull rod surrounded coaxially. They are each supported at their one end on the lock housing 1a on a housing-fixed bearing and at their other end on the slide designed as a pull rod. Like from the Figures 1b and 2b Recognizable, the return spring 6a is supported on a slide 8a and the return spring 6i on a slide 8i. The slide 8a is guided in a sliding bearing 80a and the slide 8i in a sliding bearing 80i in a linearly displaceable manner.

The slide 8a designed as a pull rod is connected to the outer nut part 4a via a connecting rod 9a. The slide 8i designed as a pull rod is connected to the inner nut part 4i via a connecting rod 9i. The connecting rod 9a, 9i is designed as a rigid link, which is articulated with one end at the free end of the slide 8a, 8i and with its other end eccentrically on the outer nut part 4a or on the inner nut part 4i. A pin is provided as the linkage, which engages in an eye in the manner of a pivot bearing. For this purpose, a cross pin is formed on the free end of the slide 8a, 8i and a complementary eye is formed on the associated free end of the connecting rod 9a, 9i. At the other end of the handlebar an eye is also formed, which is pivotally attached to a pin arranged eccentrically on the outer nut part 4a or the inner nut part 4i.

The connecting rod 9a, 9i is designed as an arcuately curved body, as in FIGS Figures 1a and 2a can be seen. The design of the connecting rod 9a, 9i as an arcuately curved body has the advantage that it is avoided that the connecting rod 9a, 9i reaches the area of the receiving opening of the nut part 4a, 4i during the rotation of the nut part 4a, 4i and thereby covers the receiving opening . As a result, the connecting rod 9a, 9i collides excluded with the mandrel of an actuating handle connected to the receiving opening of the nut part. The curvature of the connecting rod 9a, 9i is chosen so that the receiving opening is released in the entire rotational range of the nut part 4a, 4i from the basic position to the end position of the rotation and the connecting rod 9a, 9i does not cover the receiving opening of the nut part 4a, 4i.

The inner nut part 4i is firmly connected to the center nut 4m via a coupling screw, so that when the inner nut part 4i rotates, the center nut 4m is also rotated. The connecting rod 9a, 9i has a recess area at the apex of its arcuate curvature, in the area of which the coupling screw reaches during the rotation of the nut part 4a, 4i. This situation, in which the coupling screw reaches the recess area of the connecting rod 9a, 9i, is shown in FIGS Figures 2a and 2 B shown. The curvature of the connecting rod 9a, 9i is therefore dimensioned such that the coupling screw does not come into collision with the connecting rod 9a, 9i in the entire rotation range of the nut part 4i.

As already described above, an eye is formed at one end of the connecting rod 9a, 9i and is pivotably attached to a pin arranged eccentrically on the outer nut part 4a or the inner nut part 4i. As far as the arrangement of the pin on the nut part 4a, 4i is concerned, it is essential that when the nut part 4a, 4i rotates, starting from its basic position, the pin on its circular path of movement faces away from the return spring 6a, 6i and the slides 8a, 8i Section of a circle. This arrangement of the pin on the nut part 4a, 4i allows a space-saving construction of the lock.

The slide 8a, 8i designed as tie rods are arranged together with their associated coil springs 6a, 6i in a bearing frame supported in the lock housing. The bearing frame comprises a bearing plate 80p, in which a linear slot is formed, in which the slide 8a and 8i is linearly guided by the engagement of a driver arranged on the slide 8a, 8i. The slides 8a, 8i are arranged on opposite sides of the bearing plate 80p. The bearing plate 80p also has a cross plate 80q, in which a guide hole is formed for the additional guidance of the slide 8a, 8i.

Fig. 1 shows the lock 1 according to the invention in the basic position when the handle is not actuated. As already mentioned above, the handle is not shown in the figures. The actuation of the handle causes the nut part 4a or 4b coupled to the handle to rotate clockwise. This rotation of the nut part 4a, 4i moves the pin arranged eccentrically on the nut part 4a, 4i, whereby the connecting rod 9a, 9i connected to the pin is displaced. The displacement of the connecting rod causes a linear movement 9a, 9i of the slide designed as a pull rod in the illustration in the figures downward, as a result of which the coil spring is compressed. As soon as the nut part 4a, 4i hits the bearing plate, the in Fig. 2 position shown reached.

If now, starting from the in Fig. 2 shown position, the actuating handle is released, the coil spring for resetting the nut part 4a, 4a is released. It is reset by releasing the coil spring. Here, the coil spring presses the associated pull rod 8a, 8i upwards in the illustration in the figures, the connecting rod 9a, connected to the coil spring also 9i is shifted. The displacement of the connecting rod 9a, 9i requires a rotation of the associated nut part 4a, 4i counterclockwise in the sense of a reset. As soon as the pull rod 9a, 9i has reached its end position, the lock 1 is again in the in Fig. 2 shown basic position.

Reference list

1

lock

1a

Lock housing

2nd

Lock latch

3rd

Lock bolt

4th

Lock nut

4a

outer nut part

4aa

Opening opening of the outer nut part

4d

Passage area of the center nut part

4i

inner nut part

4ia

Opening opening of the inner nut part

4m

Middle nut

5

Gear slide

6

Return spring device

6a

Return spring assigned to the outer nut part

6i

Return spring, assigned to the inner nut part

7

Separating element

8a

first slide designed as a tie rod

8i

second slide designed as a tie rod

8a

first slide designed as a tie rod

8i

second slide designed as a tie rod

80a

Sliding bearing of the first slider

80i

Sliding bearing of the second slider

80p

Bearing plate

80q

Cross plate

9a

first connecting rod

9i

second connecting rod

Claims (14)

1. Lock for a door or a window,
   wherein the lock (1) has a lock housing (1a), in which a lock mechanism, preferably with a lock bolt (3) and/or lock latch (2), is mounted,
   wherein the lock mechanism

   - has at least one rotation element (4), which is rotatably mounted in a rotation bearing in the lock housing,

   - has at least one slide element (8a, 8i), which is linearly shiftably mounted in a slide bearing in the lock housing (1a), wherein the at least one slide element (8a, 8i) is supplied by a spring (6a, 6i) and, on one side, the spring (6a, 6i) is supported on the at least one slide element (8a, 8i) and, on the other side, is supported indirectly or directly on the lock housing (1a), preferably on the slide bearing (80a, 80i) of the slide element (8a, 8i), and

   - has a transmission device (9a, 9i), which is connected to the at least one rotation element (4a, 4i) and to the at least one slide element (8a, 8i), and the rotational movement of the at least one rotation element (4a, 4a) transfers to the at least one slide element (8a, 8i) and/or the movement of the at least one slide element (8a, 8i) transfers to the at least one rotation element (4a, 4i), wherein the spring (6a, 6i) supplies the rotation element (4) from an actuated position into a base position by means of the transmission device (9a, 9i),
   wherein the transmission device has at least one conrod (9a, 9i), and the at least one conrod (9a, 9i) of the transmission device is hinged with its one end on the slide element (8a, 8i) and is hinged with its other end on the rotation element (4a, 4i) eccentrically in relation to the rotation axis of the rotation element,
   characterised in that
   the at least one conrod (9a, 9i) of the transmission device is formed as a circular sectional or arcuate or trapezoidal body in such a way that the outer contour of the rotation element (4) is recessed.
2. Lock according to claim 1,
   characterised in that
   the slide element (8a, 8i), the associated spring (6a, 6i) and the associated slide bearing form a spring-slide element assembly.
3. Lock according to claim 1 or 2,
   characterised in that
   the spring (6a, 6i) is formed as a coil spring, in particular as a pull spring or as a pressure spring or as a torsion spring, or as a leg spring.
4. Lock according to one of claims 1 to 3,
   characterised in that
   the slide element (8a, 8i) is formed as a pull rod supplied by the spring (6a, 6i) or as a push rod supplied by the spring (6a, 6i).
5. Lock according to one of the preceding claims,
   characterised in that
   the at least one rotation element is formed as a lock follower (4) or as a part of a lock follower (4a, 4i).
6. Lock according to claim 5,
   characterised in that
   the at least one rotation element is formed as a rotatable follower part of the lock follower (4), preferably as an outer follower part (4a) or as an inner follower part (4i).
7. Lock according to claim 6,
   characterised in that
   the lock follower (4) is formed as a multi-part follower having a rotatable outer follower part (4a) and a rotatable inner follower part (4i), wherein the multi-part lock follower (4) has a central follower (4m), which is arranged between the first rotatable outer follower part (4a) and the second rotatable inner follower part (4i), and wherein the central follower (4m) interacts with the lock bolt (3) and/or the lock latch (2) via a lock transmission.
8. Lock according to one of claims 5 to 7,
   characterised in that
   the rotation element formed as a lock follower (4) preferably forms a lock follower assembly together with the associated rotation bearing.
9. Lock according to one of claims 1 to 8,
   characterised in that
   the rotatable outer follower part (4a) is connected to the first slide element (8a) via a first conrod (9a) of the transmission device, and the rotatable inner follower part (4i) is connected to the second slide element (8i) via a second conrod (9i) of the transmission device.
10. Lock according to claim 9,
    characterised in that
    the first slide element (8a) is supplied by a first spring (6a), which is formed as a return spring, and
    the second slide element (8i) is supplied by a second spring (6i), which is formed as a return spring.
11. Lock according to one of claims 9 to 10,
    characterised in that
    a lock follower assembly having a return spring device is formed by:

    - the lock follower (4) having the outer follower part (4a), the inner follower part (4i) and the central follower (4m), preferably together with the rotation bearing associated with the lock follower (4);

    - the first slide element (8a) having the associated first spring (6a), preferably together with the associated slide bearing;

    - the second slide element (8i) having the associated second spring (6i), preferably together with the associated slide bearing; and
    the transmission device having the first conrod (9a), which connects the outer follower part (4a) to the first slide element (8a), and the second conrod (9i), which connects the inner follower part (4i) to the second slide element (8i).
12. Lock according to one of the preceding claims,
    characterised in that
    the rotation element (4) has a coupling pin eccentrically arranged in relation to the rotation axis, and the conrod (9a, 9i) has a coupling opening complementary to this pin, or the conrod (9a, 9i) has a coupling pin, and the rotation element (4) has a coupling opening complementary to the pin of the conrod (9a, 9i) eccentrically in relation to the rotation axis.
13. Lock according to one of the preceding claims,
    characterised in that
    the at least one conrod (9a, 9i) of the transmission device is formed as a rigid single-part and/or rigid integral body, preferably as a rigid link.
14. Lock according to one of the preceding claims,
    characterised in that
    the slide element (8a, 8i) is arranged on a side of the rotation element (4), and the at least one conrod (9a, 9i) of the transmission device connects the slide element (8a, 8i) to the rotation element (4) in such a way that one end of the conrod (9a, 9i) is connected to the slide element (8a, 8i), and the other end of the conrod (9a, 9i) is connected to the rotation element (4) via a bearing, which is arranged on the half of the rotation element (4) facing away from the slide element (8a, 8i).

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