DE3432273A1 - SIDE SLIDING GATE - Google Patents

Description

PATENT LAWYERS 3 A 32 273

DR.-ING. R. DÖRING DIPL.-PHYS. DR. J. FRICKE

BRAUNSCHWEIG MUNICH

Dr. Carola Malkmus-Dörnemann Am Lappenspring 3

3320 Salzgitter 51

"Sliding side gate"

The invention relates to a sliding side gate that has a cross-section Has box-shaped carrying strap with electrical lines arranged therein for control and display devices and is guided on fixed posts.

There are sliding side doors of the aforementioned type in the most varied Embodiments known, for example as cantilevered sliding side doors, which over the door opening width are also extended and held in the closed state by acting on the door extension support and guide rollers are. Other designs are held in the goalposts, often with supporting and double posts Guide rollers are provided that engage the upper and lower chords of the gate.

A number of control and display devices are required for the operation of such sliding side gates, which among other things

also serve to prevent accidents. So are the gates with display devices which clearly show whether the door is in motion or whether the door operator is operated or not. Such display devices can consist, for example, of flashing lights on the the end of the gate pushing forward into the gate opening or one or both sides along the shoulder strap are arranged. As a rule, sliding side doors are also equipped with pressure-controlled limit switches, which are used with Reaching the closed position of the gate are operated and which also serve to prevent accidents to the Shut down the door drive when the door is moved against a resistance in the door opening. These become important control and display devices for operational safety and the reduction of the risk of accidents usually fed via electrical cables that are housed in the box-shaped shoulder strap of the gate. the Power is supplied to these electrical lines in known designs of the sliding side doors as a rule Via sliding contacts or sliding cables, both of which are relatively prone to failure. In the case of sliding contacts, there is another Difficulty that a power supply rail as parallel to the sliding side gate in corresponding foundations Fixed power supply line must be arranged on which protruding arms from the shoulder strap with appropriate Support sliding contacts. In addition to a very large effort

for this type of power supply, the disadvantage must be accepted in this design that current interruptions can occur if the Tores due to oxidation of the sliding contacts are unavoidable. In the case of a power supply using trailing cables, it is necessary to to make a separate accommodation of the tow cable outside the gate, so that a considerable construction effort is required. In the case of power supply by means of trailing cables that are attached to a winding device are wound up and unwound, there are additional expenses for the operation of the winding drum as a function from the door actuation. Even with the arrangement of a winding drum, it is necessary that the cable moved with the goal in a appropriate protective covering to accommodate the must extend over the entire towing path of the cable.

The invention is based on the object of designing a sliding side door of the type mentioned in the introduction so that the Power supply to the control and display devices via the electrical lines arranged in the shoulder strap is guaranteed with extremely little effort and the greatest security against susceptibility to failure.

For the solution of the above-mentioned problem, this is indicated in the introduction said sliding side gate according to the invention characterized in that a side of the strap extending in the longitudinal direction of the gate

Guide rail is provided, which has a rectangular cross-section guide channel for receiving an energy chain in the form of a link chain made of plastic and encloses at least one electrical cable held therein, that one end of the chain is guided in a stationary manner opposite the longitudinally movable gate in the guide rail and that associated end of the cable held in the chain passed through a longitudinal slot in the guide rail and connected to a connected to the post power supply device is connected, while the other end of the chain to the strap is attached and the associated end of the cable passed through a window in the wall of the shoulder strap as well is connected to the electrical lines provided in the shoulder strap, the chain and the cable in the open position of the gate form a loop enclosed by the guide rail.

Although the energy chains mentioned under the name "Kabelschlepp" has been known worldwide for more than 25 years and is used in particular to supply moving parts in Machine tools and the like. Have been used, have such link chains in connection with side sliding gates So far no application has been found because it has apparently not been recognized by the professional world that such chains in the described accommodation in a guide channel running along the shoulder strap also for the power supply the control and display devices of sliding gates

are suitable if the power supply also mentioned is via a stationary power supply device connected to the post he follows.

The inventive design provides a protected accommodation of the link chain and the cable held therein, the bending radius of the cable is determined when the gate is operated by the stay link chain and by appropriate selection of the stay link chain can be set in such a way that overstressing of the cable by bending loads is avoided and thus a Power interruption is prevented. A fixed connection of the one takes place through the training described Cable end on the power supply device of the post, while the other end is also fixed to the im Carrying strap running electrical lines is connected. Due to the fixed connections of the two cable ends the disadvantages and dangers of power interruption that occur with sliding contacts with certainty. For the Cable, only the guide rail provided on the shoulder strap is required, so that also when in use a trailing cable necessary additional protective devices outside the gate as well as any necessary opening and closing Unwinding devices for the towing cable are not required. Since the cable to be accommodated in the stay link chain has a

relatively small electrically conductive cross-section for the power supply may have, it is possible to use a relatively narrow web link chain, so that the guide rail can be made relatively narrow and thus hardly noticeable on the carrying strap of the gate. Practical tests have shown that a web link chain 1.5 to 2 cm wide is completely suitable for receiving the power supply cable to the control and display devices is sufficient, and that by the bending radius of the cable and the Chain certain height of the guide rail in the order of 12 to 15 cm is completely sufficient. Try a sliding side gate and a guide rail of the aforementioned order of magnitude have shown that even after tens of thousands Movement plays no impairment of the power supply and no damage to the cable takes place are.

It is useful if the guide rail designed as a box section the longitudinal slot in the side wall facing away from the gate as well as by an apron-like elastically deformable with its free longitudinal edge pointing downwards Sealing strip is covered. The end of the cable connected to the power supply device in the post can, for example be passed through a rigid tube connected to the post and extending from the post through said gap up to the end of the which is held stationary in the guide rail with respect to the longitudinal movements of the gate

Energy chain extends and is firmly connected to this end.

In another embodiment it is provided that the as Box profile formed guide rail the longitudinal slot in the downwardly facing wall, and that in the side walls of the guide rail with the window in the Carrying strap aligned windows are provided, of which the window in the side wall facing away from the gate with a detachable Cover is provided.

In the formation of the gate with the longitudinal slot in the remote from the gate The side wall of the guide rail is the window arranged approximately in the middle of the gate in the wall of the shoulder strap accessible from the outside through the longitudinal slot, so that in this embodiment only a corresponding window in the side wall of the guide rail facing the door is required. If, however, according to the last-mentioned embodiment, the longitudinal slot in the downward-facing wall of the Guide rail provided, it is necessary in the manner described, corresponding corresponding window openings to be provided in the two side walls of the guide rail so that the window provided in the shoulder strap is accessible from the outside for the implementation of the cable to the lines located in the shoulder strap.

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It is particularly expedient ₃ when the stationary with respect to longitudinal movements of the door held end of the chain is held on a vehicle equipped with wheels carriage which is supported on the walls of the guide rail. The other end of the chain can be attached to the wall of the guide rail in the immediate vicinity of the window in the carrying strap.

The drawing shows an embodiment of the invention in a schematic representation.

Show it:

Fig. 1 shows the side view of a sliding side door according to

the invention,
FIG. 2 shows, in an enlarged representation, a detail from the goal according to FIG. 1 with a partial longitudinal section

through the guide rail,
3 shows a cross section through a first embodiment

the guide rail designed as a box profile, FIG. 4 shows a cross section through another embodiment the box-shaped guide rail.

The side sliding gate shown in FIG. 1 is in the example shown as a cantilevered sliding gate executed, which is supported on roller blocks 1 and anchored between two sides of the gate in the ground stationary post 2 is performed.

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The goal has a box-shaped lower flange 3, in which the electrical lines for control and display devices are provided, to which the in the Pig. I include the schematically reproduced flashing lights 4, which can be arranged in the lower flange 3 of the gate and light up at intervals when the gate moves. As control devices at the gate to Pig. I pressure-sensitive or, if necessary, contactless inductive working switches can be provided in the gate spar 5, which act as limit switches for the closing movement and at the same time can serve to prevent accidents when the gate opens against an obstacle. The training and arrangement of such Switch is known per se, so that they are not shown in detail in FIG.

On one side of the lower strap 3 of the gate is a longitudinal direction of the gate in the form of a box profile trained guide rail 6 attached, which in the example shown extends over the entire length of the door leaf extends. This guide rail encloses a rectangular guide channel, which is used to accommodate the one shown in FIG. 1 Energy guide chain 7 shown in dashed lines in the form of a link chain made of plastic and at least one electrical cable held therein is used.

A power supply device 8 is provided on the post 2, which are designed in the form of a terminal box

can be and the one passed through the hollow post 2 Power cable 9 with one in the drawing connected to the non-reproduced energy source.

Details of the energy chain 7 in the arrangement according to FIG. 1 are described in connection with FIG. 2, which shows in an enlarged view a partial longitudinal section through the guide rail 6 in such a way that the in Fig. 1 is cut away the side wall facing the viewer.

From Fig. 2, the stationary post 2 for the door leaf can again be seen with the terminal box designed Power supply device 8. The guide rail 6, which in a manner not shown with the one facing it Longitudinal wall of the lower strap 3 is firmly connected, has' on its underside as shown in the illustration of the cross section in Fig. 3 a continuous longitudinal slot 10, through which a stationary held with the power supply device 8 connected pipe 11 extends, which in turn with an end member designed as a carriage 12 the energy chain 7 is firmly connected. The one with the power supply device extends through the tube 11 8 and in this device with the supply cable 9 connected cable 15, which through the individual Web links of the energy guiding chain 7 is passed so that it is of the energy guiding chain 7 in a known manner

is enclosed and in this chain safe against any external influences is held. The end link of the energy chain, designed as a carriage 12, is shown in FIGS equipped with guide rollers 13 and 14, which are supported on the inside of the walls of the guide rail 6, so that the carriage 12 is held in its position by the stationary pipe 11 when the door leaf is displaced and no large frictional forces between the carriage and the guide rail 6 can occur.

The other end of the energy chain 7 has an end link 16 on the rear wall of the guide rail attached, directly next to one in said wall of the guide rail and also correspondingly Window 17 provided in the wall of the lower chord 3, which window is covered by a cover plate 18. Through the Cover 18 and through the window 17, the cable 15 held in the energy chain 7 is passed and with connected to the electrical lines for the control and display devices located in the lower belt 3. the Window cover 18 can form part of a terminal box to connect the electrical cable 15 to the aforementioned electrical Connect lines in the lower chord 3.

The energy chain 7 forms a loop within the guide rail 6, which is arranged according to the

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Sliding movement of the gate within the guide rail in each case relocated.

In the example shown, the window opening 17 is arranged approximately in the middle of the gate and the entire length of the energy chain 7 dimensioned so that it corresponds to about half the gate length. This is the cheapest embodiment because one as a result, with a relatively short energy chain and thus also with a relatively short cable 15 for the power supply the control and display devices of the gate get by.

To the connections of the cable 15 with those in the supporting lower chord 3 installed electrical lines or to be able to check them in the event of a fault, it is during the execution 1 to 3 required, also on the side of the guide rail facing the viewer in FIG. 1, that is to say the side facing away from the gate 6 to provide a window with a detachable cover, as indicated at 19 in FIG.

The dimensions of the guide rail designed as a box profile depend on the strength and flexibility of the cable 15. The energy chain is dependent on this to choose which determines the radius of curvature of the loop for the feed of the cable 15.

A variant of the guide rail 6 is shown in FIG reproduced. In this embodiment, a longitudinal slot 20 is provided in the side facing away from the gate of the guide rail, which is covered by an apron-like, elastically deformable sealing strip 21. This extends through this guide slot 20 somewhat differently than in the Fig. 1 and 2 shown tube 11, which within the guide rail 6 in turn with the designed as a carriage End link 12 of the energy chain 7 is connected. In the example of FIG. 4, the carriage 12 runs in an upper chamber 22 of the guide rail 6. In this embodiment, the end of the energy guiding chain 7 assigned to the carriage 12 is suspended arranged on the carriage so that the chain comes to lie in the space below the chamber 22. It will, with others In other words, only the carriage 12 is held and guided in the chamber 22, while the chain is in the one below this chamber located space extends and there forms the loop already mentioned in connection with FIGS. 1 to 3, which is at shifted according to a sliding movement of the gate.

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Claims (5)

~ PATENTANWÄLTE 3 4 O Z Z DR.-ING. R. DÖRING DIPL.-PHYS. DR. J. FRICKE BRAUNSCHWEIG MUNICH claims 1. Sliding side gate, which has a cross-section box-shaped shoulder strap with electrical lines arranged therein for control and display devices and is guided on fixed posts, thereby characterized in that on the side of the carrying strap (3) a guide rail extending in the longitudinal direction of the door (6) is provided, which has a rectangular cross-section guide channel for receiving an energy chain (7) in the form of a plastic web link chain and at least one electrical one held therein Cable (15) surrounds that one end of the chain is stationary opposite the longitudinally movable gate in the guide rail and the corresponding end of the cable held in the chain through a longitudinal slot (10 or 20) passed through the guide rail and connected to a power supply device (8) connected to the post (2) while the other end of the chain is attached to the strap and the associated end of the cable passed through a window (17) in the wall of the shoulder strap and with the electrical Lines is connected, the chain and the cable in the open position of the gate one of the guide rail form an enclosed loop. L. 2. Gate according to claim 1, characterized in that the window (17) in the wall of the The carrying strap (3) is arranged approximately in the middle of the gate and the total length of the energy guiding chain (7) is approximately half that Door length corresponds. 3. Gate according to claim 1 or 2, characterized in that the box section trained guide rail (6) has the longitudinal slot (20) in the side wall facing away from the gate and by a with its free longitudinal edge pointing downwards, apron-like, elastically deformable sealing strip (21) is covered. 4. Gate according to claim 1 or 2, characterized in that the formed as a box profile Guide rail (6) the longitudinal slot (10) in the has downwardly facing wall, and that in the side walls of the guide rail with the window (17) in the Carrying strap (3) aligned windows are provided, of which the window (19) in the side wall facing away from the gate a removable cover is provided. 5. Gate according to one of claims 1 to 4, characterized in that the relative to the longitudinally movable Gate stationary end of the chain (7) is held in a carriage (12) equipped with rollers (13, l4).