DE19635153C1 - Drive mechanism for e.g. garage door - Google Patents

Abstract

The mechanism has a two-part drive carriage (10), the first part (12) always being connected to a motor-driven flexible drive-belt (17) guided along a guide-rail (13). The second part (11) is connected to the door. Both parts are locked and unlocked together by a coupling possessing a catch (28). The catch is especially in the form of a sprung stop-bolt, on one of the drive carriages and snapping into an indent (33) on the other carriage part. A second indent (35) is in a staggered position in relation to the first indent in the direction (B) in which the drive-carriage moves to open. The second indent has a slide part enabling the catch fitting into the second indent to be displaced into the first indent.

Description

The invention relates to a door drive device with a Guide rail and a two-part guided along this Drive carriage according to the preamble of claim 1.

A door drive device known from EP 63 219 B1 Genus also has a two-part drive carriage on, for mutually locking the slide parts locking member guided vertically on a slide part into a engages corresponding locking opening of the other slide part. In operation of the door drive device now occur as a result of arise when closing and locking the garage door Tensions problems on. Are the sled parts namely in unlocked the closed position of the garage door, so arises due to these tensions an offset between the locking member and the locking opening, which prevents the locking member again without further engage in the latching opening and thereby the gate can lock again. For example, the emergency decoupling triggered by pulling the locking member, so is the lower one Sled part free and can be moved along the running rail to open the gate by hand. A subsequent one manual relocking by closing the garage door fails because of this offset between the locking member and locking opening, which is only possible again with great effort could be overcome.  

DE 93 00 398 U1 describes a drive device for For example, a garage door known that by means of a Drive chain is moved, which can be released with a carriage is coupled. The carriage is designed in two parts consists on the one hand of a movable on a guide Housing and on the other hand one connected to the drive chain Driver, which is detachable with the housing of the carriage can be coupled. The coupling takes place by means of a Locking device made of a spring-loaded, manual actuable locking pin.

The invention has for its object a To create gate drive device of the type mentioned, the one after unlocking with the garage door closed Locking without special effort by manual Enables you to close the garage door again in a simple manner.

The object is reproduced in accordance with claim 1 Features resolved. Advantageous embodiments of the invention are specified in the subclaims.

According to the invention, the locking member can not in the engage the first recess in which it is in operation usually located, but it can be moved to the second Intervening recess, the spatial offset in essentially the result of the tensions described Offset corresponds. Now the drive becomes motor again started to open the garage door, so it arrives in the second latching recess latched over the  Sliding area automatically into the first recess. Despite the resulting tension The carriage parts can therefore be offset according to the invention can be manually locked again at any time.

The slide parts are expediently one above the other and guided independently of each other by the guide rail, whereby preferably with a substantially horizontal guide rail the first sled part guided over the second sled part is.

In an advantageous constructive embodiment, this is in particular designed as locking bolts spring-loaded Locking element in a guide channel or along a guideway of the second slide part slidably guided, this Guide channel or this guide  track preferably perpendicular to the direction of movement of the Drive carriage is aligned, in particular vertical, so that the emergency release is easy and possible minimal effort from below.

The two slide parts are low-maintenance as slides slide designed, especially as a plastic slide carriage.

A simple constructive solution for manual ver Locking after unlocking is that the second recess and the sliding area as in the loading direction of movement of the drive carriage aligned Elongated hole are formed, which until the first rest extends towards the recess. The depth of the second rest The recess is smaller than that of the first rest recess, so that in the first recess not latched into the second Can reach recess, but probably vice versa. This is particularly ensured that one of the second notch towards the first notch rising sliding ramp is provided.

The emergency release can save even more energy take place that a lever for unlocking the locking member element is provided on the longer lever arm Unlocking pull element, such as a chain, a rope or the like, is arranged.

The powertrain is conveniently flexible Band formed, which has a row of holes in the one Bolt arrangement of the first slide part engages. Here through a particularly simple assembly is possible, esp especially when the first slide part is complete is guided inside the guide rail and the bolts arrangement is arranged on a long side on which the  flexible band is guided in its own guide channel, preferably to the guide area of the first carriage partly a slot opening for the passage of the Has bolt arrangement. This must be single for assembly the flexible band is inserted into its guide channel, then the first sled part at the desired location its bolt arrangement inserted into the row of holes and finally be introduced into the guide rail in this way.

The second slide part protrudes from the longitudinal slot in the essentially horizontally arranged guide rail from, the prominent area being more advantageous Articulated one end of a connecting element to the gate carries, especially a shock absorber element. The second Sled part is limited to the longitudinal slot led the edges.

An embodiment of the invention is in the drawing shown and in the following description explained. Show it:

Fig. 1 is a longitudinal sectional view of the two-part drive carriage, wherein the locking pin in the first latching recess engages,

Fig. 2 shows the same longitudinal sectional view in a position in which the locking bolt engages in the second recess,

Fig. 3 is a cross sectional view through the guide rail is inserted into the drive carriage of FIG. 1 along the section line AA, wherein the locking pin is not shown,

Fig. 4 is a partial side view of the flexible belt forming the drive train and

Fig. 5 is a view of the first upper sub-slide from below.

The two-part drive sled 10 shown in FIGS. 1 to 3 consists of an upper sled 11 and a lower sled 12 , which are guided in or on a guide rail 13 initially independently of one another in a longitudinally displaceable manner. The part slides 11 , 12 formed as a slide can be made of plastic or metal. In principle, training as a roller-bearing or ball-bearing carriage is also possible.

The two sub-slides 11 , 12 have a rib-like structure in order to reduce the weight. In the sectional view according to FIG. 3, the cutting line runs through a transverse rib of the upper partial slide 11 . This has a substantially H-shaped cross section and is fully constantly guided within the guide rail 13 , which has an accordingly shaped guide channel 14 . A pin arrangement 15 aligned in the longitudinal direction is located on the outside of the upper partial slide 11 on the right-hand side according to FIG. 3. This pin arrangement 15 engages in a correspondingly designed row of holes 16 of a flexible belt 17 used as a drive train, which is guided in the longitudinal direction in its own correspondingly shaped guide channel 18 of the guide rail 13 . This guide channel 18 is located laterally next to the guide channel 14 so that the bolt assembly 15 engages the upper part of the carriage used in its guide channel 14, 11 in this guide channel 18 for the flexible band 17 and thus in the flexible band 17 itself. This flexible band 17 is driven in a manner not shown by an electric drive motor, which is located at one end of the guide rail 13 . There, the flexible band 17 is deflected around a drive wheel provided with corresponding drive bolts and returned again into a guide channel 19 corresponding to the guide channel 18 on the opposite side of the guide channel 14 for the upper partial slide 11 . For assembly, the flexible band 17 is first inserted into the guide channel 18 until the upper partial slide 11 can be inserted into the row of holes 16 with its bolt arrangement 15 at the desired location. Then the flexible band 17 is inserted into the guide rail 13 together with the inserted upper slide 11 .

The guide rail 13 has the bottom in its central region has a longitudinal slot 20, whereby the said longitudinal slit 20 bounding lower walls 21 rail 13 constitute a guide for the lower part of carriage 12 of the guide by engaging 22 of this lower portion of the carriage 12 in corresponding side longitudinal grooves . The lower part slide 12 engages only relatively slightly in the interior of the guide rail 13 and extends there to the crossbar 23 of the upper H-shaped part slide 11 . At this point, the two part slides 11 , 12 have opposite surfaces.

The lower sub-slide 12 projects downward substantially from the guide rail 13 and there has a holding area 24 for a connecting element 25, only shown schematically, for the gate to be moved, the connecting element 25 being pivotably held in a holding opening 26 of the holding area 24 . This connecting element 25 can for example be designed in a manner known per se as a resilient shock absorber element.

In the middle area of the lower portion of the carriage 12 there is a vertical guide channel 27 for a latching bolt 28th From this extends downward a rod-like extension 29 with a smaller diameter, which projects out of the guide channel 27 below. At the protruding end of the extension 29 , a lever element 30 is pivotally supported, which is supported with its rounded, shorter lever arm on a lower oblique wall 31 that closes off the guide channel 27 , while the longer lever arm is provided with a holding opening 32 , on which in not shown a traction rope, a traction chain or the like can be attached.

1, the two partial slides 11, 12 according to FIG. Aligned one above the other, so the locking pin 28 engages in the substantially transverse position of the lever member 30 in a corresponding latching opening 33 of the upper part of the carriage 11 a so that the two partial carriages 11, 12 to each other are locked and move together with the driven flexible belt 17 . The locking bolt 28 is held by the force of a compression spring 34 in the guide channel 27 in the locking opening 33 .

To unlock the lever element 30 is pivoted downwards with the aid of the pull chain or the pull cable, not shown, so that the locking pin 28 is moved downward out of the locking opening 33 against the force of the compression spring 34 . Now the lower part slide 12 can be moved manually together with the gate and regardless of the position of the upper part slide 11 . The pull rope or the pull chain can either be triggered manually, and / or it is fastened to a door lock so that unlocking by a key or a door latch is possible.

In the opening direction B of the drive carriage 10 is next to the locking opening 33, a second, formed in the manner of an elongated hole locking opening 35 with ge less depth. This second latch opening 35 extends to the first latch opening 33 , a ramp 36 being arranged in the transition region from the second latch opening 35 to the first latch opening 33 .

It is now assumed that the drive carriage 10 moves against the opening direction B in a locking position according to FIG. 1 in the closed position of the gate. The force of the drive motor and, if appropriate, the spring force of the connecting element 25 create stresses when the door is locked. If the lower part slide 12 is now unlocked by actuating the lever element 30 , the door, which is designed, for example, as a garage door pivoting upwards, can be opened manually. Here, the lower part slides 12 independently of the upper part slide 11 ent along the guide rail 13th If you now want to manually close the gate again and return to the original locking position between the partial slides 11 , 12 , the voltages described would have to be overcome for this purpose. However, this is not possible, since the usual, resilient connecting element 25 does not allow the lower part slide 12 to return to its original position. However, by closing the garage door can be achieved that the locking pin 28 at least according to FIG. 2 reaches the second locking opening 35 , so that the two sub-slides 11 , 12 are at least provisionally locked together. If the upper slide 11 is then moved by motor in the opening direction B, the locking bolt 28 slides along the bottom of the second locking opening 35 , which forms a sliding area, and again automatically via the ramp 36 into the first locking opening 33 according to FIG. 1 and thereby again reaches its correct original latching position for locking the two sub-slides 11 , 12 together.

In a modification of the illustrated embodiment, another locking member can also take the place of the locking bolt, for example a flattened locking slide according to the prior art specified at the outset. Furthermore, in a simpler embodiment, the lever element 30 can also be omitted, so that a tension element acts directly on the extension 29 .

Other known drive mechanisms can be provided for driving the upper partial slide 11 . The shape of the partial slides 11 , 12 and the guide rail 13 can also be varied within wide limits. It is only essential that the two sub-slides 11 , 12 are independently longitudinally displaceable on the guide rail 13 .

The door drive device described is suitable for the motorized movement of swing gates, tilting gates or other gates or doors. The guide rail 13 is arranged generally horizontally on the ceiling or at least in the upper region of the closable space ver to be actuated by the gate. However, this is not mandatory.

Claims (15)

1. Door drive device with a guide rail and a guided along this two-part drive, the first slide part is in constant drive connection with a guided in the guide rail ge motor-driven drive train, and the second slide part is connected via connecting means to the gate to be driven, the opposite Locking and unlocking the two slides parts a coupling device is provided, which has a locking member held on one of the drive slides, which is locked in the locked state in a locking recess of the other slide part, characterized in that offset to the locking recess ( 33 ) in the opening movement direction ( B) of the drive carriage ( 10 ), a second latching recess ( 35 ) is provided, which towards the first latching recess ( 33 ) is a displacement of the latching member ( 28 ) latched in the second latching recess ( 35 ) into the first latching recess Hammung ( 33 ) allows sliding area, so that in the second locking recess ( 35 ) latched locking member ( 28 ) in the loading movement of the first slide part ( 11 ) in the opening direction (B) into the first locking recess ( 33 ). 2. Door drive device according to claim 1, characterized in that the slide parts ( 11 , 12 ) one above the other and independently of one another on the guide rail ( 13 ) are guided. 3. Door drive device according to claim 2, characterized in that with a substantially horizontal guide rail ( 13 ), the first slide part ( 11 ) is guided over the second slide part ( 12 ). 4. Door drive device according to one of the preceding claims, characterized in that the locking member ( 28 ), which is designed in particular as a spring-loaded locking pin, is guided displaceably in a guide channel ( 27 ) or along a guide path of the second slide part ( 12 ). 5. Door drive device according to claim 4, characterized in that the guide channel ( 27 ) or the guideway is aligned at right angles to the direction of movement of the drive carriage ( 10 ), in particular vertically. 6. Door drive device according to one of the preceding claims, characterized in that the two slide parts ( 11 , 12 ) are designed as sliding carriages. 7. Door drive device according to one of the preceding claims, characterized in that the second latching recess ( 35 ) and the sliding area are formed as in the direction of movement of the drive carriage ( 10 ) aligned elongated hole which extends to the first latching recess ( 33 ) . 8. Door drive device according to claim 7, characterized in that the depth of the second latching recess ( 35 ) is less than that of the first latching recess ( 33 ). 9. Door drive device according to claim 7 or 8, characterized in that one of the second latching recess ( 35 ) to the first latching recess ( 33 ) towards the rising sliding ramp ( 36 ) is provided. 10. Door drive device according to one of the preceding claims, characterized in that for unlocking the locking member ( 28 ) a lever element ( 30 ) is provided, on the longer lever arm an unlocking element, such as a chain, a rope or the like, arranged is. 11. Gate drive device according to one of the preceding claims, characterized in that the drive train ( 17 ) is designed as a flexible band which has a row of holes ( 16 ) into which a bolt arrangement ( 15 ) of the first slide part ( 11 ) engages. 12. Gate drive device according to claim 11, characterized in that the first slide part ( 11 ) is guided continuously within the guide rail ( 13 ) and the bolt arrangement ( 15 ) is arranged on a longitudinal side, on which the flexible band in a separate guide channel ( 18th ) is performed. 13. Gate drive device according to claim 11 or 12, characterized in that the guide channel ( 18 ) for the drive train ( 17 ) to the guide channel ( 14 ) of the first slide part ( 11 ) has a slot opening for the grip by the bolt arrangement ( 15 ). 14. Door drive device according to one of the preceding claims, characterized in that the second slide part ( 12 ) protrudes below from a longitudinal slot ( 20 ) of the substantially horizontally arranged guide rail ( 13 ) and the projecting area articulated one end of a connecting element ( 25 ) Gate carries, especially a shock absorber element. 15. Door drive device according to claim 14, characterized in that the second slide part ( 12 ) on the longitudinal slot ( 20 ) delimiting edges of the lower walls ( 21 ) of the guide rail ( 13 ) is guided.