EP1712716A2 - Vibration-proof rotary fastener - Google Patents

Abstract

Sash fastener lock with a sliding bolt has a lock housing (10) and a lock core (14) that is activated by a key. The core is supported on a spring (23) that displaces an activation shaft (18). The latter has an elongated hole (24) in which the lock core engages and moves along a guide path.

Description

The invention relates to a Steckschlüsselbetätigbaren cam lock with a rotatable and lockable arranged in a lock housing lock core as a carrier rotatably connected to the lock core locking tongue.

A vibration-proof cam lock with the aforementioned features is from the EP 0 175 211 B1 known. Insofar as it is necessary to prevent an automatic rotation of the closing tongue-bearing lock core, for example due to vibrations acting on the cam lock, there is an annular space between the lock housing and a lock-housed actuating projection for receiving the key an axially displaceable against spring force disc-shaped mask arranged on the one hand positively connected to the lock core and guided on this, and the other hand, with the key removed in the spring force caused by the front closing the closure housing position positively locked to the closure housing. That way, with the key removed An automatic rotation of the locking tongue bearing the lock core already excluded, because the form-fitting with the lock core mask can not rotate in the closure housing due to their also form-fitting connection to the closure housing.

With the known cam lock has the disadvantage that the locking of the lock core is functional only when the key is removed, as far as the mask can lock only in its forward position with the lock housing. However, there may also be situations in which it may be desirable to leave the key stuck, although in such an operating position, the vibration safety should be given. It should be added that the locking of the disc-shaped mask with the closure housing provides only comparatively small locking surfaces, which can put into question a long-term operational reliability of the vibration-proof cam lock closure.

The invention is therefore an object of the invention to provide a vibration-proof cam lock with the features mentioned above, in which the Rüttelsicherheit is guaranteed regardless of the key function. In addition, the stability should be improved for fixing the lock core relative to the closure housing.

The solution of this problem arises, including advantageous embodiments and modifications of the invention from the content of the claims which are followed by this description.

The invention provides in its basic idea that in the closure housing one of the key to be engaged and by pressing the key relative to the lock core against the force of a is arranged on the lock core supporting spring displaceable actuating shaft, wherein the actuating shaft carries a radially beyond its circumference and the lock core in an axially extending slot and extending into a formed on the closure housing guide slot extending locking pin, and the guide slot two the rotational positions of the locking pin in Having the locking position and in the unlocked position of the locking tongue associated axial locking recesses for the locking pin and a rotational movement of the actuating shaft with locking pin corresponding, extending in the circumferential direction guideway. The invention is thus based on the principle that the key in each case cooperates with an axially relative to the lock core as a carrier of the locking tongue relatively displaceable actuating shaft, which is guided over a fixed thereto locking pin in a closure housing formed in the guide slot and in its two rotational positions via corresponding recesses Part of the guide slot is locked. Since at the same time the locking pin makes a rotational movement not permitting connection between the actuating shaft and the lock core, is located on the locking of the actuating shaft relative to the closure housing and the lock core non-rotatably fixed, so that unwanted rotational movements of the lock core are avoided.

Thus, with the invention has the advantage that the actuation shaft engaged by the key on the fixed me with her and the locking core by cross-locking pin directly drives the rotation of the lock core. At the same time the actuating shaft is locked via the locking pin in the two end positions of the key, corresponding to the locking position of the locking tongue and the unlocking position of the locking tongue, directly to the closure housing in the guide slot. For a transfer of high forces is possible. Since the locking position and the Unlocking position of the locking tongue is independently assigned a separate detent position of the locking pin, the locking of the actuating shaft with the lock housing is also independent of whether the key is inserted or withdrawn. The vibration safety is exclusively due to the respective rotational position of the actuating shaft relative to the closure housing.

The power transmission is then improved, as far as provided that the locking pin projecting in a symmetrical arrangement on both sides of the actuating shaft, the lock core has two associated slots for carrying out the locking pin and the closure housing has two guide slots for receiving the two ends of the locking pin.

To improve the key turn and the associated rotation of the lock core with the guided by the lock core locking pin is provided according to an embodiment of the invention that the transitions between the recesses and the guide rail of the guide slot of the closure housing are designed with a rounding.

According to one embodiment of the invention, the guide slot is formed by an introduced into the wall of the closure housing cutout.

Alternatively it can be provided to create a closure housing closed on its outer side, that the guide slot is formed by a cut-out inserted into the wall of a non-rotatably positively insertable into the closure housing control sleeve. Here, the guide slot can be completely formed in the control sleeve. In an alternative modification to the invention, however, sees in one Embodiment also before that the cutout of the control sleeve together with recessed into the inside of the closure housing recesses forms the guide slot with recesses and guideway.

In a first embodiment with regard to the formation of actuating shaft and lock core is provided that the lock core is sleeve-shaped and the one-piece, axially projecting multi-edged mandrel exhibiting actuating shaft is inserted into the lock core. In this embodiment, the key is placed directly on the actuating shaft and the actuating shaft is rotated so.

As far as in this embodiment, the first axial and lying in the closure housing area for the insertion of the key must be freely accessible, is provided according to an embodiment of the invention that the actuating shaft adjacent axially to the polygonal mandrel lying in the sleeve-shaped lock core federal government as a cover of the interior of the locking core, wherein it is provided in an expedient manner that the collar of the actuating shaft is provided on its outer side with a seal.

In an alternative embodiment, the formation of the actuating shaft is modified only to the extent that the actuating shaft is in turn sleeve-shaped and encloses an axially projecting from the locking core polygonal mandrel such that the frontal outer edge surface of the sleeve-shaped actuating shaft when attaching the socket wrench and the key holder with the lock core connected polygonal mandrel forms the guide for the socket wrench. In this embodiment, the key is attached to the protruding multi-edged mandrel, wherein in this Aufsteckbewegung the key axially displaces the sleeve-shaped actuating shaft in the closure housing, so that the socket wrench is to be brought into engagement with the polygonal mandrel of the lock core and, upon rotation of the socket wrench, the lock core is correspondingly rotated together with the sleeve-shaped actuating shaft carrying the locking pin.

According to a further embodiment of the invention it is provided that the actuating shaft is sleeve-shaped and can be inserted into the lock core formed as a sleeve and forms the key holder for inserting a socket wrench at its frontal opening, wherein in the sleeve-shaped actuating shaft, the wall of the actuating shaft in cross-slots through and in which the actuating shaft encompassing lock core fixed guide pin for receiving the socket wrench is arranged. In this embodiment, the inserted into the sleeve-shaped lock core actuating shaft itself is at least partially sleeve-shaped, so that in the operating shaft, a guide pin is arranged, which form the guide for the key when plugging the socket wrench. Here, the frontal opening of the actuating shaft has a contour of a Doppelbartschlüssels formed shape such that when attaching the Doppelbartschlüssels on the guide pin, the sleeve-shaped actuating shaft is moved relative to the lock core. Since in this case the guide pin remains stationary because of its definition on the lock core, the relative movement of the actuating shaft to the guide pin enabling slots are arranged in the wall of the sleeve-shaped actuating shaft accordingly.

Fig. 1

einen rüttelsicheren Vorreiberverschluss in einer auseinander gezogenen perspektivischen Darstellung seiner Einzelteile,

Fig. 2

den Vorreiberverschluss gemäß Figur 1 in zusammengebautem Zustand in einer Schnittansicht,

Fig. 3

einen rüttelsicheren Vorreiberverschluss in einer Darstellung gemäß Figur 1 in einer anderen Ausführungsform,

Fig. 4

den Vorreiberverschluss gemäß Figur 3 in zusammengebautem Zustand in einer Schnittansicht,

Fig. 5

einen rüttelsicheren Vorreiberverschluss in einer Darstellung gemäß Figuren 1 oder 3 in einer weiteren Ausführungsform,

Fig. 6

den Vorreiberverschluss gemäß Figur 5 in zusammengebautem Zustand in einer Schnittansicht.

Fig. 7

einen dem Ausführungsbeispiel gemäß Figuren 3 und 4 entsprechenden rüttelsicheren Vorreiberverschluss in einer abgewandelten Ausführungsform in einer auseinander gezogenen Darstellung seiner Einzelteile,

Fig. 8

den Vorreiberverschluss gemäß Figur 7 in einem Teil-Zusammenbau,

Fig. 9

den Vorreiberverschluss gemäß Figuren 6 beziehungsweise 7 in einer perspektivischen Schnittansicht.

In the drawings, embodiments of the invention are shown, which are described below. Show it:

Fig. 1

a vibration-proof cam lock in an exploded perspective view of its parts,

Fig. 2

1 in the assembled state in a sectional view,

Fig. 3

a vibration-proof cam lock in a representation according to Figure 1 in another embodiment,

Fig. 4

3 in the assembled state in a sectional view,

Fig. 5

a vibration-proof cam lock in a representation according to FIGS. 1 or 3 in a further embodiment,

Fig. 6

the cam lock according to Figure 5 in the assembled state in a sectional view.

Fig. 7

a vibration-proof cam lock according to the embodiment according to FIGS. 3 and 4 in a modified embodiment in an exploded view of its individual parts,

Fig. 8

the cam lock according to FIG. 7 in a partial assembly,

Fig. 9

the cam lock according to Figures 6 and 7 in a perspective sectional view.

The structure of the preamplifier according to the invention will first be explained with reference to the illustration in FIG. A closure housing 10 has at its front, left end a flange 11, which during assembly of the Apron closure, for example, on a door leaf on the outside of the corresponding, the closure housing receiving door opening comes to rest and is supported against the door leaf. In the adjoining area, the closure housing 10 is provided with a thread 12 to which a nut 13 can be screwed. When mounting the cam lock, for example, on a door leaf, the door leaf between the flange 11 and the nut 13 is clamped and the closure housing 10 thus determined. In the closure housing 10, a lock core 14 is rotatably disposed, at its plugged into the closure housing 10 end a square 15 is formed on a locking tongue 16 is positively placed and then by means of a fastening screw 17 fixed to the lock core 14 to connect.

In the illustrated embodiment, the lock core 14 is sleeve-shaped, so that in the lock core 14, an actuating shaft 18 is inserted, which has at its front, left end a polygonal mandrel 28 for applying a corresponding socket wrench. The multi-edged mandrel 18 is adjacent to a collar 19, on the outer circumference of a seal 20 can be placed, so that the actuating shaft 18 seals the interior of the lock core 14 according to the insertion into the sleeve-shaped lock core 14. Between the sleeve-shaped lock core 14 and the actuating shaft 18, a compression spring 23 is arranged, which biases the actuating shaft 18 in its front position in the lock core 14, so that the actuating shaft 18 in accordance with the pressure exerted by the socket wrench, not shown, relative to the lock core 14 in this insertable is.

The actuating shaft 18 has a radially projecting beyond its circumference and inserted into a fitting hole 21 locking pin 22, the wall of the sleeve-shaped lock core 14 in a therein trained elongated hole 24 passes through, so that thereby the relative displacement of the actuating shaft 18 relative to the lock core 14 is ensured. The locking pin 22 engages in a trained in the wall of the closure housing 10 guide slot 25 and is guided in this. The guide slot 25 has two axially arranged locking recesses 26, which are arranged offset from each other over the circumference of the closure housing with the possible angle of rotation of the actuating shaft 18, wherein between the respective recesses 26 a rotational movement of the actuating shaft 18 with locking pin 22 corresponding guide rail 27 formed for the locking pin is. The two axial recesses 26 correspond to the rotational positions of the actuating shaft 18 in the locking position of the locking tongue 16 and in their unlocked position.

In the initial position of the actuation shaft 18 carried by the locking pin 22 is located in one of the axial recesses 26 and is held by the action of the actuating shaft 18 to the outside pressing spring 23 in the associated recess 26. In this first starting position occurring vibrations can not lead to a rotation of the locking tongue 16.

If an operation of the cam lock by means of a patch on the multi-edged pin 28 of the actuating shaft 18 key, the actuating shaft 18 is inserted against the action of the spring 23 in the sleeve-shaped lock core 14 with the key. During this insertion movement, the actuating shaft 18 is guided non-rotatably via the locking pin 22 located in the axial latching recess 26. Reached the locking pin 22 after leaving the locking recess 26, the guide rail 27, the actuating shaft 18 is to be rotated with the socket wrench, the locking pin 22, the guide rail 27 passes through until the locking pin 22 abuts in the region of the other recess 26 and here by the axial return movement in the other axial recess 26 can engage. The thus given rotational movement of the actuating shaft 18 is implemented via the lying in the slot 24 of the sleeve-shaped lock core 14 locking pin 22 in a rotational movement of the lock core 14 and thus in a rotational movement of the rotatably connected thereto locking tongue 16. If, at the end of the rotational movement, the opposite axial latching recess 26 is reached, the spring 23 presses the actuating shaft 18 back into its forward position. In this respect, the closing core 14 with the closing tongue 16 connected thereto is also securely fixed in this other end position.

In the embodiment shown in Figures 3 and 4, in contrast to the previously described embodiment, the actuating shaft 30 itself formed sleeve-shaped, so that the socket wrench in the actuating shaft 30 can be inserted. To guide the socket wrench in the sleeve-shaped actuating shaft, an axially extending guide pin 31 by means of a wall of the sleeve-shaped actuating shaft 30 transversely interspersed and engaging in fitting holes 36 of the sleeve-shaped lock core 14 retaining pin 32 set. In order to allow an axial relative movement of the sleeve-shaped actuating shaft to the fixed to the lock core 14 retaining pin 32, 30 elongated holes 33 are formed in the wall of the actuating shaft. The sleeve-shaped actuating shaft 30 has an end opening 35, which is given via lateral projections 34 in the form of a double bit key. Thus, if a double-bit key is placed on the actuating shaft 30, the guide pin 31 engages in the central opening of the double-bit key and guides it into the closure housing during the insertion movement. In this insertion movement, the contours of the double bit key engage in the frontal opening 35 with lateral projections 34 of the actuating shaft 30, so that the actuating shaft 30 is displaced axially relative to the sleeve-shaped locking core 14. As far as in the actuating shaft 30 of the locking pin 22 is anchored, the further sequence of movements takes place as described for the embodiment according to Figures 1 and 2.

In the embodiment formed in FIGS. 5 and 6, a reversal of the conditions is given in relation to the exemplary embodiment described with reference to FIGS. 1 and 2, in which case the locking core 41 is solid and the actuating shaft 40 sleeve-shaped overlaps the lock core 41 and can rotate in the closure housing 10 is. At its end, the lock core 41 on the multi-edged mandrel 42 for placing a socket wrench. The inserted into the fitting hole 21 of the actuating shaft 40 locking pin 21 is again guided with its outer end in the slot 25 of the closure housing 10, while its inner end engages in a turn-trained in the lock core 14 slot 24.

The sleeve-shaped actuating shaft 40 has an inner polygonal mandrel 42 of the lock core 41 enclosing annular edge surface 43, wherein the actuator shaft 40 is displaced correspondingly axially and relative to the lock core 14 when placing the socket wrench on the polygonal mandrel 28 by pressure on the edge surface 43. In addition, the same movement conditions apply as described for Figures 1 and 2.

The embodiment illustrated in FIGS. 7 to 9 corresponds in its basic construction to the exemplary embodiment illustrated in FIGS. 3 and 4 and correspondingly described in detail. The main difference is that the guide slot 25 is formed with the axial recesses 26 and the guide rail 27 is not a cutout in the housing wall of the closure housing 10, but now with the closure housing 10 closed by a control sleeve 50 inserted inside the closure housing with a leading edge 52 training cutout 51, where as a counterpart to the Inside the closure housing 10 recesses 53 are recessed for guiding the locking pin 22, which form the guide slot 25 together with the guide edges 52 of the cutout 51 of the control sleeve 50. The mutually opposite cutouts 51 of the control sleeve 50 each go into an axially adjacent further cutout 54, which is intended to cooperate with a respectively formed on the inside of the closure housing 10, projection, not shown, wherein by the engagement of the projection in the respective cutout 54th the control sleeve 50 is non-rotatably fixed relative to the closure housing and in the closure housing 10. The embodiment is supplemented by the arrangement of a seal 58. Furthermore, in this embodiment, the frontal opening of the closure housing 10 is closed by a retaining cap 55, in which an insertion opening 56 is formed for inserting a Doppelbartschlüssels, the double-key while inserting the actuating shaft 30 with the applied lateral extensions 34, said lateral projections 34 are now guided in slots 57 of the lock core 14. Otherwise, however, the structure and function of the security tappet according to FIGS. 7 to 9 are identical to the exemplary embodiment according to FIGS. 3 and 4.

The features disclosed in the foregoing description, the claims, the abstract and the drawings of the subject matter of these documents may be essential individually as well as in any combination with each other for the realization of the invention in its various embodiments.

Claims (12)

Socket-actuated cam lock with a locking housing rotatably and lockable arranged lock core as a carrier rotatably connected to the lock core closing tongue, characterized in that in the closure housing (10) to be taken by the key and by pressing the key relative to the lock core (14 ) against the force of a closing core (14) supporting the spring (23) displaceable actuating shaft (18, 30, 40) is arranged, wherein the actuating shaft (18, 30, 40) has a radially over its circumference projecting and the lock core (14) in an axially extending slot (24) and extending into a on the closure housing (10) formed guide slot (25) reaching locking pin (22) carries, and the guide slot (25) two the rotational positions of the locking pin (22) in the locking position and in the unlocking position of the locking tongue (16) associated with axial Rastausnehm ments (26) for the locking pin (22) and one of the rotational movement of the actuating shaft (18, 30, 40) with locking pin (22) corresponding, extending in the circumferential direction guide track (27). Cam lock according to claim 1, characterized in that the locking pin (22) protrudes in a symmetrical arrangement on both sides of the actuating shaft (18, 30, 40), the lock core (14) has two associated slots (24) for passing the locking pin (22). and the closure housing (10) has two guide slots (25) for receiving the two ends of the locking pin (22). Cam lock according to claim 1 or 2, characterized in that the transitions between the latching recesses (26) and the guide track (27) of the guide slot (25) of the closure housing (10) are designed with a rounding. Cam lock according to one of claims 1 to 3, characterized in that the guide slot (25) by a in the wall of the closure housing (10) introduced cutout is formed. Cam lock according to one of claims 1 to 3, characterized in that the guide slot (25) by a in the wall of a non-rotatably form-fitting in the closure housing (10) insertable control sleeve (50) introduced cutout (51) is formed. Cam lock according to claim 5, characterized in that the cutout (51) of the control sleeve (50) together with embedded in the inside of the closure housing (10) depressions (53) the guide slot (25) with locking recesses (26) and guide track (27) , Cam lock according to one of claims 1 to 6, characterized in that the lock core (14) is sleeve-shaped and the one-piece, axially projecting polygonal pin (28) having actuating shaft (18) in the lock core (14) is inserted. Cam lock according to claim 7, characterized in that the actuating shaft (18) has an axially to the polygonal mandrel (28) adjacent, in the sleeve-shaped lock core (14) lying collar as a cover of the interior of the lock core (14). Cam lock according to claim 8, characterized in that the collar (19) of the actuating shaft (18) is provided on its outer side with a seal (20). Cam lock according to one of claims 1 to 6, characterized in that the actuating shaft (40) is sleeve-shaped and one of the lock core (14) axially projecting Mehrkantdorn (42) encloses such that the frontal outer edge surface (43) of the sleeve-shaped actuating shaft ( 40) when attaching the socket wrench, the key holder and with the locking core (14) connected polygonal mandrel (42) forms the guide for the socket wrench. Cam lock according to one of claims 1 to 6, characterized in that the actuating shaft (30) of sleeve-shaped and in the form of a sleeve lock core (14) can be inserted and at its frontal opening (35) forms the key holder for inserting a socket wrench, wherein in the sleeve-shaped actuating shaft (30) a the wall of the actuating shaft (30) in associated slots (33) by cross and in which the actuating shaft (30) embracing Locking core (14) fixed guide pin (14) is arranged to receive the socket wrench. Cam lock according to claim 11, characterized in that the frontal opening (35) of the actuating shaft (30) has a shape of the contour of a Doppelbartschlüssels formed.

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