DE1459127A1 - Moving device for doors - Google Patents

Description

PU 59 127.6 I * 58 046 V / 48dJ rT 7441

Robert Boston OBbE-, Stuttgart April 29, 1968 He / fa

■ '. ■ ■ '' -

Moving device for doors

The invention relates to a moving device for doors and similar parts, especially in vehicles, with a connected to the part to be moved, in a cylinder under the influence of compressed air to be supplied via a control valve to be displaced working piston, whose cylinder side connected to the outside air during the closing stroke has a resilient closing element upstream 1st, which is there before reaching the end position of the Working piston forms a pressure cushion by interrupting the air flow.

There are already Türbewegungvorriohtungen known in which at Closing the door the piston of the cylinder is first moved rapidly until a closing member opens the outlet of the not pressurized standing cylinder chamber largely closes off and creates a cushioning air cushion there. From then on the door will only slowly closed and slowly reaches its end position

In another known door movement device is next to the first rapid closing and the subsequent slowed second closing path, a third closing stroke is provided during the the side facing away from the drive side of the piston is completely vented again and the door accelerates to its closed position.

It is true that the known door movement devices can be changed the closing speed during the 2nd or the 2nd and 3rd part of their closing stroke a variable throttle device intended. But the closing stroke of a door, especially during the hour, is not possible with a throttle screw alone to monitor. In practice, therefore, the Return the door to its starting position and then operate the door closing valve again. When in motion However, such a measure can lead to serious accidents.

9098U / 0022

e .U

documents

All these disadvantages are avoided according to the invention in that the closing member in a manner known per se second air outlet is unaffected, to the over a short Line an auxiliary valve is connected, which is a preferably electromagnetically actuated, against the pressure in the cylinder has opening check valve, via which the pressure cushion can be resolved after a selectable period of time.

An embodiment of the invention is shown in the drawing.

A compressed air procurement system 1 is connected via a line 2 to a container 3, from which compressed air via a Line 4 reaches a control valve 5. To the control valve 5 two pressure lines 6 and 7 are connected, of which the line 6 with the cover side 8 of a cylinder 9 and the line 7 is connected to the bottom 10 at the connection 11. A piston 12 is movable in the cylinder 9, its piston rod is passed through the cylinder cover H in a sealed manner and

—3—

9Q98U / 0022

H 5 9-12.7. '

Robert Boson Ob * »H He / Bi R.-Nr. 7441

Stuttgart May 27, 1960

onto an Oestttnge 15 which moves a gate (not shown) works. The piston 12 is provided with an attachment 12 * on the one spring 16 is attached. The spring 16 deceives about an approach. set 17 * a sole plate 17 »on which a Naohgleblge s.B. the end Ottmmi manufactured sealing plate 17 'is attached. The feather holds the closing member 17 at some distance from the piston 12.

The control valve 5 is controlled electromagnetically and 1st see below For this purpose, the electrical line is connected to a switch 20 and to a power source 21 at 18 with earth and overhead. The power source 21 also supplies a second circuit, the pressure switch 22 and the line 2? su an auxiliary valve 24 and from there at 25 rare earth leads. The auxiliary valve Is also designed as a solenoid valve, via a check valve 26, the solenoid valve 24 is connected to the auxiliary air line 28 leading to the air supply 27. The connection 27 is on the wall of the cylinder near the cylinder base 10 arranged. The check valve 26 is installed in such a way that, when the solenoid valve 24 is actuated, it moves against the Cylinder 9 is pushed open.

The operation of the described door movement device is as follows

If the door is to be opened, compressed air is let into the line 7 connected to the bottom IC of the cylinder 9 and onto the bottom side of the piston 12 via the solenoid valve 5. In this position of the solenoid valve 5 1st the Deokelselte 8 Vented via line 6. The door goes into hers Open position.

To close the TUr, the solenoid valve 5 is switched

and compressed air via line 6 into the cover side 8 of the

9098U / 0022. ^

BATH ORIGINAL

Robert Bosch OrnbH He / Bi R.-Nr. 7441 Stuttgart May 27, I96O

Allow cylinder »9 to flow in. At the same time, the body 10 of the cylinder 9 is then vented via the line 7. The door begins its closing stroke and continues this until the sole plate I7 covers the connection 11 on the bottom 10 of the cylinder. Now the air from the right bottom of the piston 12 can no longer flow out. Via the connection 27 and the line 28, the check valve 26 is pressed firmly and tightly onto its seat. As a result, a Druokpoleter is formed on the bottom side 10 of the cylinder 9 and the door comes to a standstill before it has reached its closed position. J) ^ r first part of the Sehlleflhub of the 9Ur is thus finished «

Appropriately, this first trii

of the sole stroke of the door chosen so large that the door is only Leave a gap of 5 - 10 cm up to the door frame. This A smooth gap definitely prevents people from falling out of the vehicle, but still allows old clothing and other items to be trapped in the locking area take the door xu. In addition, the door can also be ventilated in the summer while driving Remain in position. The check valve 26, which can be opened against the pressure of the pressure pad, prevents the in this position For sure any reduction in volume of the pressure pad, Make sure that the door is fixed after the first part of its closing stroke remain.

If the door is now to be closed completely, the Pressure switch 22 actuates the auxiliary valve 24. Now the check valve 26 is pushed open against the pressure of the pressure cushion and the trapped air can via the connection 27 and the line 28 sur outside air to flow away. The door begins the second part of its Sehliefihuba and closes the doorway completely. Has the When the door has reached its limit position, the pressure switch 22 can again released and thus the auxiliary valve 24 can be switched off «

90981 4/0022

BATH ORIGINAL

To simplify the structure, the auxiliary valve 24 could also be placed directly on the cylinder 9. In order to the line 28 would then be saved.

BATH ORIGINAL 9098U / 0022

Claims (4)

Robert Bosch GmbH, Stuttgart £ 29.4.1968 He / Wa U59127 Expectations ./Moving device for doors and similar parts, in particular in vehicles, with a part connected to the moving part, in a cylinder under the influence of a control valve Compressed air to be fed to the working piston whose cylinder side is connected to the outside air during the closing stroke a closing member is resiliently connected upstream, which is there before reaching the end position of the working piston by interrupting of the air outlet forms a pressure cushion, characterized in that the closing member (17) in a known manner a second air outlet (27) can be unaffected, to which an auxiliary valve (24) is connected via a short line (28), the a non-return valve (26) which can be actuated electromagnetically and opens against the pressure in the cylinder (9), via that the pressure pad can be released after a selectable period of time. 2. Movement device according to claim 1, characterized in that the air outlet (11) monitored by the closing member (17) on Bottom (1u) of the cylinder (9) and the connection (27) for the line (28) are arranged near the cylinder base (10) on the cylinder wall. 3. Movement device according to claim 1 or 2, characterized in that that the auxiliary valve (24) actuating electromagnet with an arbitrarily actuatable switch (22) in a common circuit. 9 0 9 8 U / 0 0 2 2 ^BAD - 3 supporting sheets iArt-JSlAUfcaNMaajafiftiÄndfitunflsgo ».y, 4.9. U59127 4. Movement device according to claims 1 to 3, characterized in that the auxiliary valve (24) with its actuating electromagnet is attached directly to the cylinder (9). 9098U / 0022