EP0115594A1 - Locking device for concertina doors - Google Patents

Abstract

1. Lock for concertina doors, with bolt bars (17, 23) which emerge in the longitudinal direction out of the lock housing (1, 2), are movable in opposite directions and, via intermediate guides (14, 20) linearly guided at the end side, are coupled to a pivotably mounted, double-arm actuating lever (centre area 6), one arm (18) of which is lengthened to form an operating lever (7) projecting out of the lock housing (1, 2), with a locking slide (27) which can be actuated by a closing cylinder, is displaceable in the longitudinal direction of the lock housing (1, 2) and interacts with the closing cylinder (10) via a control section (32) being provided for blocking the pivoting movement of the operating lever (7) in its normal position (locking position), characterized in that the control section (32) is in pin/slot engagement (33, 34) relative to a travelling slide (35) which is movable in the transverse direction of the lock housing (1, 2), is displaceable by means of the closing cylinder (10) and to which a tumbler (39) is allocated which is displaceable in the longitudinal direction of the lock housing (1, 2).

Description

The invention relates to a closure for folding gates according to the preamble of claim 1.

In a known, on the market design of such a closure occurs against the one flank of the inner, shorter arm of the operating lever of the lock cylinder-operated locking slide. Since the operating arm of the operating lever is relatively long, considerable forces can be applied, which are then to be absorbed by the locking slide. This can lead to deformations and thus make the closure unusable. Then this design does not allow the lock cylinder to be passed completely through the lock housing.

The object of the invention is based on the object of designing a closure of the type required in a technically simple manner in such a way that large opening forces can be absorbed without damage with a small design when the locking slide is in the closed position.

This problem is solved by the characterizing part of claim 1.

As a result of such a configuration, a generic closure for folding gates of increased use value is specified. The locking slide now engages on the operating arm of the operating lever, so that only one relatively short lever arm when attempting to open with the locking slide in the closed position is present. Deformations leading to locking faults can therefore no longer be generated. Due to the control section running to the side of the pivot bearing point of the operating lever, the locking point can be provided close to the exit region of the arm of the operating lever. The control section of the locking slide also allows the locking cylinder itself to be accommodated cheaply. Opening forces emanating from the operating lever when the locking slide is in the locked position are not transmitted to the locking cylinder.

An advantageous further development can be seen in the fact that the locking slide blocking point is arranged on the side of the intermediate link opposite the handle section of the operating lever. This enables space-saving accommodation of the corresponding closure components.

There are advantages in terms of locking technology in that the arm of the operating lever has a niche into which a blocking projection of the locking slide can be inserted. Therefore, the pivoting movement of the operating lever can only be blocked if its niche is opposite the blocking projection of the locking slide. If the operating lever is in the open position and the locking slide is then brought into the closed position, this is indicated by the fact that the operating lever acts on the blocking projection with its corresponding area and cannot be pivoted into the final closed position.

There is a possibility that the locking slide blocking point lies in the area of the root of the handle section. This blocking point alone or in conjunction with the aforementioned blocking point can cause the control lever to be tied.

Another advantage can be seen in the fact that the control section lies in the pin / slot engagement with a touring slide which is movable in the transverse direction of the closure housing and which is associated with a tumbler which can be displaced in the longitudinal direction of the closure housing. Depending on the direction in which the touring pusher is moved, the locking slide is displaced either into the release or into the blocking position via the pin / slot engagement.

It proves advantageous that the tumbler is U-shaped, one U-leg carries the tumbler spring and both U-legs are equipped with pins, one of which is in the closed position and the other in the open position in the edge-side throats of the touring pusher entry. Any forces occurring on the locking slide in its direction of displacement are accordingly absorbed by these pins.

In addition, it is favorable that the inner end of the intermediate link facing away from the operating lever engages via a chain link reaching to the side of the locking cylinder on the central region of the operating lever in such a way that the point of engagement of the chain link on the central region in the locked position of the locking bars over the dead center line between the operating lever pivot point and the other linear chain link pivot point occurs. This means that the weight of the upper, in most cases relatively long locking bar leads to a pivoting of the operating lever in the locking direction. Only when the lock is opened, after a certain pivoting of the operating lever, the point of application exceeds the dead center line, so that the weight then supports the opening movement of the operating lever.

The fact that the articulation point between the intermediate link adjacent to the operating lever in the locking position of the locking bars has crossed the dead center line between the operating lever pivot point and linear also contributes to a secure locking position guided locking bar application point. Any opening forces which are intended to force the lower locking bar into the lock housing accordingly result in the operating lever also being pivoted increasingly into the locked position.

So that the operating lever can be pivoted into the locked end position even when the locking slide is in the blocking position, the locking slide blocking point is preceded by a bevel and the control section has a corresponding empty gear. If the corresponding arm of the operating lever acts on the locking lever when the locking slide is in the blocking position, this inevitably evades and allows the operating lever to be pivoted further into the closed position, so that the locking slide can move back into the locked position when the locking projection is aligned with the recess. The corresponding empty gear also enables an internal release when the shutter is in the locked position. By means of a handle firmly connected to the locking slide, the locking slide, which is then loaded by a spring, can be moved into the release position and the door can be opened. After leaving the room, the door can be locked again without using a key.

Finally, an advantageous feature can be seen in the fact that the outer boundary wall of the niche in the closed position of the locking slide comes against a stop surface of the locking slide, in which position the chain link engagement point on the center section is located on the dead center line. The weight of the upper drive rod is therefore taken up by the operating lever pivot. It therefore does not lead to a pivoting of the operating lever into the closed position. An increased friction between the boundary wall of the niche and the stop surface of the locking slide does not occur, so that no greater forces have to be applied when the lock cylinder is actuated.

• Fig. 1 eine Ansicht des Verschlusses gemäß der ersten Ausführungsform bei in Verschlußstellung befindlichen Riegelstangen,
• Fig. 2 die klappfigürliche Ansicht der Fig. 1,
• Fig. 3 eine Draufsicht auf das Verschlußeingerichte bei fortgelassener Schloßgehäusedecke bei in Verriegelungsstellung befindlichen Riegelstangen, wobei sich der Verriegelungsschieber in der Öffnungsstellung befindet,
• Fig. 4 eine der Fig. 3 entsprechende Darstellung, jedoch bei in die öffnungsstellung geschwenktem Bedienungshebel,
• Fig. 5 eine ebenfalls der Fig. 3 entsprechende Darstellung, wobei der Verriegelungsschieber in die Blockierungsstellung getreten ist,
• Fig. 6 den Schnitt nach der Linie VI-VI in Fig. 3
• Fig. 7 den Schnitt nach der Linie VII-VII in Fig. 3,
• Fig. 8 den Schnitt nach der Linie VIII-VIII in Fig. 5,
• Fig. 9 eine teilweise Draufsicht auf den unteren Bereich des Verschlusses gemäß der zweiten Ausführungsform bei blockiertem Bedienungshebel und
• Fig. 10 den Schnitt nach der Linie X-X in Fig. 9.

Two exemplary embodiments of the invention are explained below with reference to FIGS. 1-10. It shows

• 1 is a view of the closure according to the first embodiment with locking bars in the closed position,
• FIG. 2 shows the foldable view of FIG. 1,
• 3 is a plan view of the locking device with the lock housing cover omitted with the locking bars in the locking position, the locking slide being in the open position,
• 4 shows a representation corresponding to FIG. 3, but with the operating lever pivoted into the open position,
• 5 is a representation also corresponding to FIG. 3, the locking slide having entered the blocking position,
• 6 shows the section along the line VI-VI in FIG. 3rd
• 7 shows the section along the line VII-VII in Fig. 3,
• 8 shows the section along the line VIII-VIII in FIG. 5,
• Fig. 9 is a partial plan view of the lower region of the closure according to the second embodiment with the control lever blocked and
• 10 shows the section along line XX in FIG. 9.

The closure shown in FIGS. 1-8 has a lock base 1, which is covered by a cap-like lock cover 2. To the brackets serve from the lock base 1 outgoing stud bolts 3 and lugs 46, 50, in which the lock housing cover 2 penetrate screws 4.

The lock base 1 carries in its central region a pin-like operating lever fulcrum 5, which serves to support the central region 6 of an operating lever 7. Beyond the central area 6, the operating lever continues into a relatively short arm 8. There is a pin-like point of attack 9 for a chain link 11 reaching to the side of a lock cylinder 10. This is coupled via a chain link articulation point 13, which is linearly guided in a longitudinal slot 12 of the lock base 1, to the inner end 14 'of the intermediate link 14 remote from the operating lever 7. Its other end 14 ", which is angled to the longitudinal axis of the lock housing, carries a guide pin 15 which engages in a longitudinal slot 16 of the lock base 1. The guide pin 15 passes through the end of the upper locking bar 17. The longitudinal slots 12, 16 accordingly extend in the direction of displacement of the locking bar 17 .

The operator-side arm 18 is also equipped with a pivot point 19. Around this one end 20 'of the other intermediate link 20 is mounted. The other end 20 ″ carries a locking bar engagement point 21 which leads into a longitudinal slot 22 of the lock base 1 and engages through the end of the lower locking bar 23 there.

In the closed position of the locking bars 17, 23 shown in FIG. 3, two dead center lines AA and BB occur. The point of attack 9 of the chain link 11 at the central area 6 has entered the locking position of the locking bars 17, 23 via the dead center line AA between the operating lever pivot point 5 and the other linearly guided chain link pivot point 13. Accordingly, the weight of the upper locking bar 17 causes the operating lever 7 to be loaded clockwise, that is to say it is pivoted into the closed position. The other dead center line BB goes through the operating lever pivot point 5 and Locking bar engagement point 21, wherein the articulation point 19 has passed between the operating lever 7 and the adjacent intermediate link 20 via this dead center line BB. A shift of the locking bar 23 in the lock causes the operating lever 7 is also pivoted clockwise.

To facilitate handling, the operating lever forms a handle section 24 on the outside of the lock.

The approximately Z-shaped arm 18 of the operating lever 7 continues on the side of the intermediate link 20 opposite the handle section 24 into a projection 18 '. In this there is a recess 25 which is open at the bottom and into which a blocking projection 26 of a locking slide 27 can be inserted. Accordingly, this locking slide blocking point is located on the side of the intermediate link 20 opposite the handle section of the operating lever. The locking slide 27 forms longitudinal slots 28, 29, which extend in the direction of displacement of the locking bars, into which locking bolts 30 and 31 on the housing side dip. The longitudinal slot 29 is located in a narrower area of the locking slide 27, which area opens into a control section 32 extending to the side of the pivot bearing 5. This affects the locking cylinder 10 on the side opposite the intermediate link 14. Arranged in the control section 32 is a longitudinal slot 33, which extends obliquely to the direction of displacement of the locking slide 27 and into which a pin 34 projects, which is seated on a touring slide 35 which is movable in the transverse direction of the closure housing. To guide it, bolts 36 extending from the lock bottom are used, which engage in corresponding slots 37 of the tour pusher 35. A locking engagement opening 38 for the locking bit 10 ′ of the locking cylinder 10 is provided in the touring pusher 35 on the edge facing the locking cylinder 10.

Below the tour pusher 35, a U-shaped tumbler 39 is guided in the longitudinal direction of the closure housing. The U-web 39 'projects into the locking engagement opening 38, while the U-legs 39 "and 39"' extend on both sides of the locking bar 17. The U-leg 39 '' 'is a carrier of a compression spring 40 which is supported on the associated stud bolt 3 and loads the tumbler in the direction of the locking cylinder 10. On both U-legs 39 ", 39" 'there are pins 41, 42, one of which 42, in the open position, dips into an edge-side throat 43 of the touring pusher 35, see FIG. 3. In the closed position, the other pin 41 engages the other edge-side throat 44 of the touring slide 35, see FIG. 5. In both cases, the displacement of the locking slide 27 is blocked. A displacement of the touring slide 35 and thus of the locking slide 27 requires the closing actuation of the locking cylinder, the locking bit 10 'displacing the tumbler 39 and disengaging the pins 41 and 42 from the corresponding edge-side grooves 43 and 44, respectively.

If the locking bars 17, 23 are to be moved from their position shown in FIG. 3 into the open position, the operating lever 7 is to be pivoted counterclockwise. The upper locking bar 17 is pulled inwards via the chain link 11 and intermediate link 14 and the lower locking bar 23 is also moved inward via the intermediate link 20.

As soon as the point of attack 9 exceeds the dead center line AA during this opening operation, the weight of the upper drive rod 17 assists the opening movement of the operating lever 7. In the open position, the operating lever assumes the position according to FIG. 4 and is in this by the weight of the upper Locking bar 17 held.

The locking of the lock requires the control lever 7 to be moved clockwise, the locking rods 17, 23 being extended in opposite directions and in the lock (not shown) Immerse the recesses. The basic position of the operating lever 7 is limited when it acts on an inclined flank 45 of a lower bracket 46 fastened to the lock base 1. The niche 25 of the operating lever 7 then extends at the level of the blocking projection 26. When the closing operation then follows, the touring slide 35 is moved into the position according to FIG. 5. As a result of the pin-slot engagement 33, 34, the locking slide 27 is displaced upward, its blocking projection 26 entering the recess 25 and blocking the pivoting movement of the operating lever 7. As a result of this specially arranged blocking point, no major constraining forces can occur. The fact that the locking slide 27 can be supported with its projection 27 ′ on a lug 50 on the housing side has a stabilizing effect.

If the locking slide 27 has already been brought into the blocking position prior to the shifting of the operating lever 7 into its basic position, the outer boundary wall 25 'of the recess 25 acts on a stop surface 26' of the locking slide 27, see the dash-dotted line in FIG. 5. In this position the middle section-side chain link point of application 9 is still on the dead center line AA, so that the load caused by the locking bar 17 acts on the operating lever fulcrum 5 and does not cause the operating lever 7 to pivot in the locking direction. The friction between the boundary wall 25 'and the stop surface 26' is therefore insignificant, so that even then the locking slide 27 can be easily displaced by the locking cylinder 10.

If necessary, the stop surface 26 'of the locking slide 27 can be designed as a sloping latch. Then the same could occur with the locking slide closed. For this purpose, the control section 32 would have to form an empty gear for the pin 34. Furthermore, a spring would have to be arranged, which locks lung slider 27 loaded in the upward direction. Then an internal release is also possible by means of a handle extending from the locking slide in the closed position. It is then also necessary to provide an inner lever which would be coupled with the operating lever 7.

In the second embodiment shown in FIGS. 9 and 10, identical components have the same reference numerals. In a departure from the first embodiment, a further locking slide blocking point is provided, which is located in the region of the root 7 ′ of the operating lever 7. For this purpose, instead of the longitudinal slot 28 on the locking slide 27, a locking pin 47 is provided, which leads in a longitudinal slot 48 of the lug 46. In the area of the root 7 'there is another niche 49. When the locking bars 17, 23 are extended, the locking slide 27 can be shifted into the closed position, its locking pin 47 being immersed in the niche 49 and thus blocking the pivoting movement of the operating lever 7. At the same time, the locking projection 26 is also inserted into the recess 25 so that the operating lever 7 is locked twice. However, it is also possible that only one or the other blocking point is provided.

The locking device is designed in such a way that it does not have to be disassembled when the lock is attached.

All the new features mentioned in the description and shown in the drawing are essential to the invention, even if they are not expressly claimed in the claims.

Claims (10)

1. Lock for folding gates, with locking bars emerging from the lock housing and moving in opposite directions, which are coupled via linearly guided intermediate links to the central region of the control lever protruding from the lock housing, which is rotatably supported in the lock housing and whose rotational movement can be blocked from its basic position by a lock slide-actuated locking slide, thereby characterized in that the locking slide (27) engages on the operating arm (18) of the operating lever (7) and is coupled to the locking cylinder (10) via a control section (32) extending to the side of the pivot bearing (5) of the operating lever (7). 2. Closure according to claim 1, characterized in that the locking slide blocking point on the handle portion (24) of the operating lever (7) opposite side of the intermediate link (20) is arranged. 3. Closure according to claim 1, characterized in that the arm (18) of the operating lever (7) has a niche (25) into which a blocking projection (26) of the locking slide (27) can be inserted. 4. Closure according to claim 1, characterized in that the locking slide blocking point is in the region of the root (7 ') of the handle portion (24). 5. Closure according to claim 1, characterized in that the control section (32) in the pin / slot engagement (33, 34) to a movable in the transverse direction of the breech slide valve (35), which is associated with a displaceable in the longitudinal direction of the breech housing tumbler (39) is. 6. Closure according to claim 5, characterized in that the tumbler (39) is U-shaped, one U-leg (39 ¹¹¹ ) carries the tumbler spring (40) and both U-legs (39 ", 39111) with pins (41, 42) are equipped, one of which (41) in the closed position and the other (42) in the open position in the edge-side throats (43 and 44) of the touring pusher (35). 7. Closure, in particular according to claim 1, characterized in that the inner end (14 ') of the control lever (27) remote intermediate link (14) via a to the side of the lock cylinder (10) extending chain link (11) at the central region (6) of the operating lever (7) engages in such a way that the point of application (9) of the chain link (11) at the central region (6) in the closed position of the locking bars (17, 23) over the dead center line (AA) between the operating lever pivot point (5) and the other linear guided link link point (13) occurs. 8. Closure according to claim 7, characterized in that the articulation point (19) between the control lever (7) adjacent intermediate link (20) in the closed position of the locking bars (17, 23) has passed over the dead center line (BB) between the control lever pivot point ( 5) and linearly guided locking bar application point (21). 9. Closure according to claim 1, characterized in that the locking slide blocking point is preceded by a bevel and the control section (32) has a corresponding empty gear. 10. Closure according to claims 1 and 3, characterized in that the outer boundary wall (25 ') of the recess (25) occurs in the closed position of the locking slide against a stop surface (26') of the locking slide (27), in which position the chain link side section - Attack point (9) is on the dead center line (AA).

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