DE1927758A1 - Safety device for a door with profiles that can be telescoped into one another in the vertical direction - Google Patents

Description

PATENT LAWYERS 8 MUNICH 2. HILEU.ESTRASSE 2O

Dr. Bertf "Dipl.-Ing.Stapf, 8 MOnchen 2, Hilblestrafia 20 Sign Our sign Qg / f _r | g 536 Date

Lawyer file number: 18 536

MARTIN BIRGER & ERG, LAGAN / SWEDEN

"Safety device for a door with telescopic in Püfilen which can be pushed into one another in the vertical direction. "

The invention relates to a safety device for a door or a gate with telescoping in the vertical direction Insertable profiles each made of a horizontal base part and legs extending downwards and with one of the movement of the profiles serving, acting on a lower profile and recesses in the base part of the upper one Profiles penetrating rope.

In the case of doors or gates of the aforementioned type, it can happen that during the closing movement in the path of the lowest profile

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B "(0811) · 5 IiS 20 81 Telegrams: PATENTEULE MOnchen Banki Bayerische Vereinsbank Munich 453100 Postal check: Munich i53 +3

an obstacle comes in, so that its free movement is disturbed will. This results in the one disadvantage that part of the length of the carrying rope wound on a drum leaves the drum, which then in the further only under difficult conditions can be re-applied to the drum * In addition, in the event that the closing Door these lead to injuries to persons or damage to objects, which interfere with free movement of the lowest profile. In order to eliminate this risk, it is generally necessary to use conventional doors or gates constant monitoring of the closing movement is provided, whereby a switch, for example, remains actuated as long as until the door or gate is completely closed. The invention has set itself the task of avoiding the to take precautions against the disadvantages recorded here.

This object is essentially achieved by a weight or a spring device, which the rope in the event of impact of the lower profile during the closing movement of the door Obstacle or in the case of a disturbed free movement of the same down until a switch for a motor that causes or controls the movement of the rope? actuated and the movement of the rope is stopped or vice versa » Such a weight or spring device is most convenient fixed on the lowest profile of the door, which preferably has a closed cross-section · According to a particular simple embodiment of the safety device according to the invention, the switch is arranged so that he or one with it cooperating member is actuated by the weight or the spring device.

A double safety factor against the above-mentioned risks is achieved if, according to a further feature, the above

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lying invention on the upper part of the lowermost profile, another switch is arranged in the event of a fault the free movement of this profile downwards, triggered by a shock against the base part of the profile above, switches off the drive motor or reverses it if necessary. In such an embodiment is then on everyone

In the event that at least one of the switches is operated so that it is then no longer necessary to monitor the closing movement of the door or the gate by means of a device provided for this purpose.

According to a further feature of the present invention is that Carrying rope attached to the one lying directly above the lowest profile and carries a ' or several profiles arranged above, the base parts of which then come into operative connection with one another, while the lowermost profile hangs down at a distance from the base part of the profile arranged immediately above. This further embodiment is particularly advantageous because of the weight here For part of the lowest profile, a person or a The object is acted upon before the switch is actuated and the movement is stopped or reversed. This bottom one Like the other profiles, the profile has only a very low weight, so that the door or gate can close the risk that this could injure a person or damage an object as a result of their weight has been eliminated.

Additional features and advantages of the invention can be seen from the following description in conjunction with the drawing. It shows: Fig. 1 is a cross section through one with the invention 'Safety device aligned door of the mentioned

Type in the open position,

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FIG. 2 is a perspective view of part of the door according to FIG. 1

in the closed position, and Fig. 3 is a front view, in section, of the lowermost profile the door according to FIGS. 1 and 2.

The TUr shown in the drawing comprises a number of profiles which can be telescoped into one another in the vertical direction • each from a horizontal base part la and downwardly extending legs Ib. A number of hook-shaped links la are punched or punched through from the area between the base part and the legs of each profile and bent outwards. The lower edge areas of the legs are inward and bent over at the top so as to form grooves Ic, which serve both to interact with the hooks of a respective lower profile as well as made of plastic or the like. manufactured support ribs or the like. to hold on which rollers 3 are mounted, which facilitate the mutual movement of the profiles. The bottom Profile 4 has a closed cross-section and is trimmed an upwardly extending centering pin 5 which, in the open position of the door or the gate, has recesses in the base part the upper profile reaches through. With this lowest profile are Support ropes 8 connected, which pass through recesses in the upper profiles and on, not shown, by a Motor driven drums are wound. At the end edges of this profile rollers 6 are mounted, which with the TUr or The goal frame are in operative connection and thereby precisely guide the profile. By means of the mentioned centering pin 5, the upper Profiles reliably guided when opening the door or gate, they are then always precisely aligned with the lowest profile.

In the lowest profile there is now a weight or a spring

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direction 9 arranged, which with the support rope 8 in connection is held and this then keeps it taut, -when the lowest profile against a closing movement of the door or gate should hit an external obstacle. The rope 8 goes through a Sleeve 12 through which is inserted into an opening in the upper part of the lowermost profile and abuts against a plate 13, which during the closing movement of the door or the gate at the top Supports lying profiles until the carrying hooks lc, Ie the profiles take over this task. On the upper part of the lowermost profile, a microswitch 14 is fixed with an actuating member 15 that protrudes upwards over the profile and by a bump against the base of the one above Profile is actuated if the bottom profile should hit an obstacle during the closing movement of the door. In this lowermost profile there is also a further switch 16 which is actuated by the aforementioned weight or the spring device which holds the carrying rope 8 taut. at Actuation of one of the switches 14 or 16 is the drive motor switched off or, alternatively, reversed if necessary. That Weight or the spring device holds the tether as long taut until the door has stopped moving in the closing direction

The arrangement described creates a double safety factor against the risk of injury to a person or damage to an object, which should get into the path of movement of the door during its closing movement, furthermore, this arrangement prevents the rope from becoming slack and unwinding it from the drum. Instead of the described arrangement with a weight or with a spring device, in the lowest profile it is also possible; one with a suitable switch on the shaft of the drum for the tether cooperating torsion spring to provide the same

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To achieve effect. The aforementioned sleeve 12, through which the rope 8 is guided is via a lever 18 with a Locking or blocking member 19 connected, which in the closed position of the door automatically in operative connection with a suitable, not shown recess of the door or Torrah-

mens comes, so that thereby the door is locked. It is without further recognizable that there are no difficulties in applying the invention to the application where comparable Doors or gates are operated by means of several ropes which are kept in operative connection with different profiles. Preferably However, only two ropes are used for such doors or gates, one at each end of the profiles, which are passed through recesses in these and with handle members lc, Ie cooperate in the manner described and Way are provided for the individual profiles

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Claims (7)

»Patent claims 1.1 Safety device for a door or a gate which can be telescoped into one another in the vertical direction Profiles each from a horizontal base part and looked downwardly extending legs and with one of the movement the profile serving, engaging a lower profile and recesses in the base part of the upper profile reaching through rope, characterized by a weight or a spring device, which the rope in the case the impact of the lower profile during the closing movement of the door on an obstacle or in the case of a disturbed free movement of the same downward as long as tight holds until a switch for a motor that effects or controls the movement of the rope is actuated and the movement of the rope is stopped or vice versa. 2. Safety device according to claim 1, characterized in that the weight or the spring device • Is attached to the lowest profile · preferably closed cross-section of the door. 3. Safety device according to claim 2, characterized in that g e k β η η - "draw, ^ that the switch or an actuator interacting with it can be actuated by the weight or the spring device" 4. Safety device according to one of claims 1 - 3, g e -characterized by a further switch on the upper part of the lowest profile, which is the drive 909849/1074 motor by a shock against the base part of the above Profile switches off and, if necessary, redirects « 5. Safety device according to claim 4, characterized in that g e k e η η, that the tether during the closing movement is arranged on the one directly above the lowermost profile Profile attacks to one or more top profiles to support, the Dasisteile are in operative connection with each other, while the lowest profile at a distance of the base part of the profile immediately above it hung 6. Safety device according to claim 5, characterized in that by the weight or the spring device actuated rope is passed through a sleeve movably arranged in the lowermost profile, which over the upper part of this lowermost profile protrudes upwards and optionally with the interposition of an intermediate plate or the like »with the bottom of the east part of the immediate profile arranged above the lowest profile in effective » connection is possible " 7. Safety device according to claim 6 _e characterized geke η η ~ is characterized in that the sleeve attached to a pivotable lever mounted on the lower profile · ^ / which holds a locking or locking member at its other end, which is automatically in the SchldfLieg «of the door comes into operative connection only through a recess in the door or Torrriimen » 909049/10 Blank page