DE2644708C2 - Slide bolt lock for furniture or the like. - Google Patents

Description

The invention relates to a sliding bolt lock for furniture or the like according to the preamble of claim 1.

marked by. aau o.e au.gc- Such a furniture lock is from the DE-AS

, closed position of the sliding bolt (14) by an at 15 Ό 87 487 known. Be. d.esem in the guard locking in itself
it or on the tumbler (17) arranged locking on the whole is resilient. It is also represented by d, e
inmuuciauuc ₆ _v / ο _. ^ respective displacement of the sliding bolt serving

nose (24) can be blocked. that a key pin (20 ', 20 ") is arranged next to both long sides of the sliding bolt (14). that a return spring (2C ) loads the tumbler \\ 7) in the direction of the broad side of the sliding bolt (Ί4), that the tumbler is open a pin (15) fixed to the housing pivotable about a pivot axis parallel to the key mandrel axis and can be pivoted laterally out of its respective holding position by turning the key from the free end of the key bit (23), this pivoting movement being supported by a guide surface (34 or 34 '; 39 or 39 ') is superimposed on the upward movement generated against the force of the return spring (20), which during the further displacement of the sliding bolt (14) is caused by the force of the return spring (20) and the associated guide surface (39 or 39'; 34 or 34 ') forced inward pivoting movement and downward movement of the tumbler (17) in their respective new holding position.

2. Slide bolt lock according to claim 1, characterized in that the guide surfaces (34; 34 ^; 39; 39 ') are arranged on the sliding bolt (14) and with them the locking nose arranged on the tumbler (17) (24) cooperates.

3. Slide bolt lock according to claim 1 or 2, characterized in that the return spring (20) is a conical spring.

4. Slide bolt lock according to claim I or 2, characterized characterized in that the return spring (20) is integral with the tumbler (17).

5. Slide bolt lock according to one of claims I to 4, characterized in that the Rückstellfc key rotation by means of the key bit against the spring action caused by their resilient training to the broad cables of the sliding bolt upwards and under their own spring action back down into theirs Slide bolt moves in the newly assumed position holding holding position. This occurs considerable Frictional forces between the tumbler and the sliding bolt as well as between the one for bending the guard locking on this directly pressed key bit, so that this furniture lock through this strong Friction is stiff. This friction also causes considerable wear. Furthermore, the The key shaft is always next to the same side of the sliding bolt. It doesn't have a key pin either, but rather A keyhole is provided in each of the two broad sides of the lock housing, which are aligned with one another. Of the The key shank penetrates these two keyholes to guide it, which makes the Lock.

From DE-GM 19 75 096 a sliding bolt lock for right / left use by means of a pivotable Guard locking known, on both sides of which key pins are arranged. The guard locking must, however by means of relatively long and thin return springs in their excluded and included position of the Push bolt holding center position are pressed. These long springs have long travel and broad

therefore relatively easy.

From FR-PS 15 10 350 a right / left is also applicable Known lock in which the tumbler in a parallel to the broad cables of the sliding bolt

to 4 characterized, azu ae cake »: - level is movable and by means of two long resilient arms (20) in a recess (19) of the tumbler (17) 50 arms on fixed stops /» "'^, D-ese ar against lateral Moving towards the guard, one protrudes the thrust nege in its ⁶⁶ - ■ - · ■ ■ - · ». ·. · Included and excluded position dioc-

device is held in a form-fitting manner and its end facing away from the locking mechanism (17) is attached to the cover (13) or the base of the main housing part (12) and can slide on this base or cover.

6. Slide bolt lock according to one of claims to 5, characterized in that the tumbler (17) to achieve their Auf- and Abwartsbcwegbarkeit with an oval penetrated by the pin (15) Hole is provided,

7. Sliding bolt lock according to one of claims to 6, characterized in that the pin (15) has a Straight guide seat (16) of the sliding bolt (14) penetrates with little side play.

8. Sliding bolt lock according to one of claims to 7, characterized in that the narrow edges of the tumbler (17) to lateral Sehlicßausnchmungen (36) of the Schubriegcls (14), in which the Sehlüskicrcnde locking nose and must therefore be relatively stiff. When the key is turned, the tumbler is first moved against the spring wire! A'r, g of its two arms out of its respective engagement position with the sliding bolt transversely to the direction of movement of the sliding bolt and then the sliding bolt is moved into its new position by the key bit bo then the key bit, the tumbler again to return to their each new position releases the Schubriegcls holding position in its further rotation, lccloch have on the tumbler of the free lindkiime of Schlüssclbartes the required bending of de _b 5 rcn resilient arms relatively large forces exerted so that this sliding bolt lock is also relatively heavy and is also subject to considerable wear and tear.

The object of the invention is the object based on a sliding bolt lock for furniture or the like to create the presupposed genus, in which the existing in such a previously known sliding bolt lock relatively strong friction that occurs when turning the key should be reduced and one thing Right / left use permitted

This task is characterized by the characteristics of the Part of claim 1 solved

In this sliding bolt lock according to the invention, the friction occurring when the key is turned can be reduced due to the combined swiveling and upward movement of the guard locking, because the guard locking this is not deformed and the return spring is only required for resetting the guard locking exercise low restoring forces and do not have to withstand any other forces. as a result of this low There is also little friction and wear, which means that the operational reliability of this sliding bolt lock is high. By doing furthermore, the return spring loads the tumbler in the direction of the broad side of the sliding bolt, result only short spring travel for them, so that this return spring is inexpensive, small and unbreakable can. This sliding bolt lock also has a simple, inexpensive design. It also enables special easy training of its lock housing and borrowed and quick assembly.

The zz * and downward movements of the tumbler can preferably be tilting movements. But it is also possible to guide the guard locking so that it moves up and down differently, for example parallel to itself.

The subclaims relate to advantageous developments of the subject matter of claim 1.

It can be provided that the guide surfaces are arranged on the sliding bolt and with them on the Locking lug arranged interacts This leaves particularly small, narrow and area-wise very flat shape of the tumbler and also saves space in the lock housing and also allows small Construction height of the lock housing. Also prepares the arrangement of the guide surfaces and the locking lug on Slide bolt or the guard locking no additional costs if it is made of metal or plastic injection molded Parts dealt In some cases it can also be provided that the guide surfaces relate to the lock housing to form stationary surfaces, for example when the guide surfaces on the main housing part of the Lock housing can be molded with. If the locking lug is arranged on the tumbler, enables this, as mentioned, is particularly small in terms of area of the guard locking. However, it is also possible the locking lug or, if several locking lugs are provided, all locking lugs on the sliding bolt and accordingly to arrange the guide surfaces interacting with the locking lug or lugs on the tumbler. It should be noted that there are various ways of holding the sliding bolt through the Guard locking in the preferably two different positions of the bolt there. For example, in In some cases it can be provided that on the tumbler or on the sliding bolt in the longitudinal direction of the tumbler or the sliding bolt arranged two locking lugs at a distance between the two basic positions of the sliding bolt that alternately interact with a single recess in the sliding bolt or outer tumbler, d. h. That in one position of the sliding bolt the one locking lug in the recess and in the other position of the sliding bolt engages the other locking nose in the recess. However, it is more advantageous Provide a single locking lug with shoulders, preferably through two recesses on the sliding bolt can be formed to block the sliding bolt in its included and excluded Working together. The enclosed position of the sliding bolt can also only be locked.

It can be provided that the return spring is a

ίο The conical spring is particularly flat compress and has good break resistance. It can be made of round wire and suitable for use has compared to also very break-proof coil springs among other things. the advantage that they are particularly flat Shape can be pressed and can also be easily moved transversely, so that between the tumbler and the abutment for this conical spring forming cover or bottom of the housing or another as an abutment for the spring part of the sliding bolt lock only the one required to move the guard locking device upwards, narrow space must be v.yciandeii, who thus does not determine according to the pen. must become. However, other springs are also possible, for example a helical spring or one or more springs short leaf springs, as the latter also have uncomplicated, simple and cheap design and as a result of them Shortness also does not tend to break.

It can be provided that the return spring is made in one piece with the guard locking is. In this case, the return spring can be used as a tongue or handle-shaped spiral spring, be particularly useful designed as a leaf spring. If necessary, several of these can also be used Return springs can also be molded onto the tumbler, for example two towards one another or from one another leaf springs directed away.

It can be provided that the tumbler to achieve their up and down movement with a is provided with an oval hole penetrated by the pin Upward and downward mobility of the pivotable guard locking achieved

It can be provided that the pin has a straight guide slot of the sliding bolt penetrates with little side play. The pivot bearing acts as a result the slift effecting the guard locking at the same time on the straight guide of the sliding bolt. Of the The pin can also keep the friction of the sliding bolt in its straight line particularly small.

In the drawing is an embodiment of the invention shown it shows

F i g. 1 is a plan view of a sliding bolt lock for Furniture or the like, with the cover partially broken away and the permissible level above the sliding bolt and return spring are shown in dash-dotted lines,

FIG. 2 shows a section through FIG. 1, viewed along the section line 2-2,

3 shows a section through FIG. 1, seen along the section line 3Λ

F i g. 4 a fig. I corresponding top view of the same lock, but with the sliding bolt in his excluded position is shifted: the guard locking with return spring is shown in dash-dotted lines, FIG. 5 shows a section through FIG. 4, viewed along the section line 5-5,

FIG. 6 shows a section through FIG. 4, viewed along the section line 6-6,

F i g. 7 a fig. 4 corresponding representation of the same

ben lock, but with the key to open it of the lock has already been turned so far that the guard locking no longer blocks the sliding bolt,

FIG. 8 shows a section through FIG. 7, seen along the section line 8-8,

FIG. 9 is a section through FIG. 7, viewed along the section line 9-9.

The sliding bolt lock 10 shown in the drawing has a lock housing 11 consisting of a Plastic injection-molded housing main part 12 and a form-fitting inserted into the lock housing main part for example, clipped-in cover U made of sheet metal. In the shooting housing 11 is a straight, flat one Slide bolt 14 is arranged with a rectangular, front end face, which in its FIG. 1 - 3 included Position fully pushed into the lock housing 11 and excluded in the one shown in FIGS. 4-9 Position protrudes from the lock housing II. The straight guidance of the sliding bolt 14 is effected through the lock housing slot penetrated by it and through a pin 15, which has a Gcradführungsschlitz 16 of the metal-injection-molded sliding bolt 14 penetrates with little side play. This bolt 14 is symmetrical to its longitudinal center plane.

The tumbler 17 located above the upper broad side of the sliding bolt 14 between it and the lock housing cover 13 is designed symmetrically to its longitudinal center plane and can be injection-molded from plastic or metal. It is pivoted on the pin 15 out and in (double arrow A. Fig. 3) and up and down (double arrow S, Fig. 3). This pin 15 at the same time forms a rivet for the cover 13. So that the tumbler 17 can perform the tilting movements according to double arrow B , its hole is penetrated by the pin 15. oval aulgeweitei The upward and downward tilting movements of the tumbler 17 are from a comparison of FIGS. 5 to 8 can be seen particularly clearly. So that the sliding bolt lock 10 is kept particularly flat, the tumbler 17 tapers towards its front end. as shown. At the top it has a round recess 19 into which a return spring 20 made of round wire is inserted in a form-fitting manner. which is supported with its upper end of the smallest diameter on the cover 13 forming the abutment for it. On both long sides of the tumbler 17 and the sliding bolt 14 two key pins 20 ', 20 "parallel to the pin 15 are arranged symmetrically to the longitudinal center plane of the sliding bolt 14, so that this lock is suitable for left / right use. It can also be used for drawers .

The function of this sliding bolt lock is explained below with the aid of a more detailed description of the training of the sliding bolt 14 and the tumbler 17 for actuation by means of a plugged onto the key pin 20 ' Key 21 is explained as follows, whereby the explanations also apply accordingly to the case that the key 21 would be attached to the other key pin 20 ″, as this is due to the symmetry mentioned of tumbler 17 and sliding bolt 14, the same explanations apply accordingly.

In Fig. I, the sliding bolt 14 is in his Open position. The key bit 23 of the key 21 has already been turned so far that it is in contact comes with the adjacent longitudinal side of the pear-shaped tumbler 17 in plan view. The longitudinal center plane of the tumbler 17 falls into the position shown in FIG. 1 and 4 The rest positions shown (middle positions) do not coincide exactly with the longitudinal joint plane of the sliding bolt 14 due to appropriately provided tolerances. At the front end of the tumbler 17 is in the longitudinal center plane a downwardly projecting locking lug 24 is arranged, which alternatively in recesses on the top 25, 26 of the sliding bolt 14 resting on the bottom 27 of the lock housing main part 12 engages. In Fig. I this locking nose 24 engages in the sliding bolt recess 25 a, the front side a rectangular area 28 (Fig. 7) with a concave cross-section Has the bottom, on which a plane that is trapezoidal in plan view and parallel to the broad side of the sliding bolt 14 Surface 30 (Fig. 7) adjoins the two diagonally up to a transverse web 29 of the sliding bolt 14 that separates the two recesses 25, 26 triangular guide surfaces 34, 34 'and a middle, Connect the narrow area 35 of the crosspiece 29. The trapezoidal surface 30 already enables movement of the sliding bolt !. 14 from the in Tig.! depicted: enclosed position before the tumbler 17 has reached the inclined guide surface 34 or 34 '. What is appropriate.

If the key bit 23 in FIG. 1 counterclockwise is rotated further, it pivots the hall 17 in a clockwise direction and the key bit 23 then also comes into engagement with the left edge of the associated with it, the V-shaped locking recess 36 of the sliding bolt 14 and thereby moves it in relation to it on F i g. 1 to the left, the tumbler 17 being pivoted even further. The locking tab 24 then slides in the recess 25 from derr; Area 28 over the flat surface 30 to the inclined guide surface 34 and up on this and is then over the crosspiece 29 guided and then slides as a result of the further movement of the sliding bolt 14 and that of the return spring 20 on the tumbler 17 force exerted against the key bit 23 on one of the guide surface 34 and one long side edge of the recess 26 to the deepest, middle, flat bottom area 37 (Fig. 6) obliquely downward leading guide surface 39 of the recess 26. Since the sliding bolt 14 closes its longitudinal middle is symmetrical. is natural there is also a guide surface 39 'which is symmetrical to the inclined guide surface 39 and which is «Silkorn 20" key 21 comes into effect. Locking bolt 14 and tumbler 17 then come into play in the position at rest shown in Fig. 4-6, in the locking lug 24 on the floor 37 behind the shoulder formed by the area 35 of the crosspiece 29 so rests and thereby blocks the sliding bolt 14 against being pushed back. The back of the recess 26 or the pin 15 prevent manual withdrawal of the sliding bolt 14 from the lock housing.

The tumbler 17 was therefore initially through when the sliding bolt lock 10 was closed as described the key bit 23 guided by its locking lug 24 and the surfaces of the recess 25 the cam mechanism formed of the sliding bolt 14 is pivoted outwardly upward, the return spring 20 is increasingly compressed and after crossing the crosspiece 29 slides the locking nose 24 on the guide surface 39 of the recess 26 of the sliding bolt, which also forms a cam mechanism with it by the pressure of the return spring 20 inwards b5 downwards, the tumbler 17 by the pressure of the Return spring 20 remains constantly pressed against the key bit until the tumbler 17 is the one shown in FIG. 4-6 shown has reached the excluded position in which

\ jo

the locking lug has reached the bottom 37 of the recess 26.

/ to open the lock, the key 21 is rotated in clock / .eigcrrichtung and initially comes in the case in Fig. 4 position shown in which the ^r> key bit 23 comes to rest on the tumbler 17. As shown in FIG. 4, the tumbler 17 can be seen somewhat above the locking recess 36 of the sliding bolt 14. that is, it overlaps so that when the key 21 is further turned, initially only the tumbler 17 is pivoted and the sliding bolt 14 still remains in its original position. Here, the locking projection 24 slides on the inclined guide surface 39 up and away and so moves the tumbler 17 still standing at deadbolt 14 in the in i ^r> F i g. 7-9 position in which the locking lug 24 no longer blocks the sliding bolt 14.

When you turn the key 21 clockwise, the sliding bolt 14 is now from Key 21 moved, with the locking lug 24 over the 2 « Crossbar 29 passes away into the recess 25 of the push bolt 14. When turning the key further 21, the sliding bolt 14 and the tumbler 17 then move into the position shown in FIG. I - 3 position shown. The locking nose 24 slides into the 2I shown in FIGS. 1-3 Position in the recess 25 inwardly downward, by the pressure of the return spring 20, whereby they also slides over the trapezoidal surface 30, since the sliding bolt 14 is moved accordingly by the key 21 will. In this enclosed position of the sliding joist riegr's 14 according to FIGS. 1-3, the one behind the locking nose 24 rising surface of the recess 25 of the sliding bolt 14 a shoulder that prevents the sliding bolt 14 for example by shaking the lock or by its own weight (if r> Bolt) can move outward, so that this position of the sliding bolt 14 by the locking lug 24 is held, here in the manner of a locking.

The rest or middle position of the tumbler 17 ent- -to does not speak in this embodiment exactly the position in which the longitudinal center plane of tumbler 17 and sliding bolt 14 coincide, but deviates somewhat from it for reasons of tolerance. This plays however, it does not matter, since it only matters that the Tumbler 17 holds the sliding bolt 14 in its two stationary positions, which is achieved by engaging the locking lug 24 takes place in the one or the other recess 25, 26 in the sliding bolt 14.

If the key 21 is attached to the other key pin 20 ", after the adjustments of the Sliding bolt 14, the rest positions of the tumbler 17 based on the longitudinal center line of the sliding bolt 14, for example as a mirror image of that in FIGS. 1 and 4 shown rest positions of the tumbler 17. The front end of the Return spring 20 slides when the tumbler 17 is moved on the lock housing cover forming its abutment 13, which is advantageous because this results in a very low height of this return spring 20. The separate Return spring 20 can also be injection-molded in one piece onto tumbler 17 by at least one Return spring, which can be tongue-shaped or handle-shaped, for example designed as a leaf spring, replaces will.

For simple sliding bolt locks of the present b5 In general, it is sufficient if, as in the exemplary embodiment, it has a single excluded position of the sliding bolt. However, it is also readily possible with a corresponding extension of the sliding bolt possible to allow him several excluded locations.

For this purpose 3 sheets of drawings

Claims (1)

Patent claims: 1. Slider lock for furniture or the like, with a guard locking arranged near the broad side of the sliding bolt to hold the locked and locked position of the sliding bolt, with the guard locking by turning the key against the spring action, which also serves to shift the sliding bolt to the broad side of the sliding bolt upwards and again downwards under the action of the spring into theirs the sliding bolt can be moved in the holding position holding it in each new position, thereby characterized in that the auselbart (23) engages to move the sliding bolt, are arranged and designed »that in a manner known per se, at least when the sliding bolt lock is opened first the tumbler (17) to unlock the sliding bolt (14) can be moved and only then the sliding bolt can be moved by the key bit