DE1584039A1 - Door hold-open device - Google Patents

Description

The invention "refers to improvements to Türaufhaltvorrichtungen, especially on automatic doors, and" particularly relates to a novel torsion bar construction which holds open the door in a partially or fully open position reliably, wherein the Aufhaltvorrichtung soft and quiet on and disengages and AEEN remaining open and closing path completely free movement of the door allows "This is void particularly for those doors that are opened up, to minimize resistance to ate during opening»

According to the invention, the hold-open device is between two mutually twistable members arranged and comprises a torsion bar connected to the one member, which is on outer end of a laterally protruding arm a stop pin carries, which cooperates with a fixed on the other link stop, characterized in that the Stop over the greater part of the rotational movement of the "two parts moved substantially freely and with little or no resistance by the arm with the stop pin during the remainder

9Π9808 / 0782

BATH ORIGINAL

Movement path, however, so that it is engaged in such a way that the arm is bent against the rotational resistance of the torsion bar and mediates a locking interruption or open position within the hinge movement.

Me hinge members can be parts of a motor vehicle, e.g. B. door and door frame, and according to the invention, the stops exist in front of direction in a door hinge. This achieves a particularly compact arrangement in which the torsion bar on one hinge wing the stop on the other is appropriate.

The torsion bar can be pre-tensioned to provide stiff resistance to the movement of the stop pin through the stop. The open position is preferably in the completely open hinge position. According to the invention, a second stop can be provided in an intermediate position. The parts are preferably arranged in such a way that the torsion bar applies a greater bending resistance of the stop pin to the stop during the closing movement of the hinge parts than during the opening movement. The stop can consist in a conventional manner of a knurled or toothed roller,

In a preferred embodiment of the invention, the hold-open device consists of a hinge and comprises a generally S- or C-shaped torsionally loaded rod spring, one vertical end of the arm being inserted into a hole on one side of the one hinged ice and the other vertical end of the arm is inserted into a slot on the other side of the hull wing in such a way that torsional stress is thereby applied to the wing. The rod is attached in such a way that it is held at four points of contact, namely at opposite ends of the two arm ends, and is prevented from being axially displaced by means of a notch in one end.

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" ⁵ " 1584033

is secured. This makes the rod an integral part of the hinged ice and can by a stop on the Door half of the hinge against the every effect occurring only at one end be bent by a force that is greater than the spring preload. The stop consists of a roll, which is arranged so that the movable end of the torsion bar is bent against its peder action when the door is either the fully open position (with a role) or sow & hl the partially as well as the fully open position (with two rollers) is reached. The stopping effect is that the door cannot be closed, if not the movable one End of the torsion bar by moving the roller in is bent in the opposite direction, the rod and roller being in engagement with one another in such a way that, when opened, borrowed less force than must be applied when closing.

Two preferred lorms are toothed or so-called Star rollers used, with the teeth or protrusions au | the circumference of the roller are so close together that the torsion bar will then also be in a recess when it is first actuated slides if there is no direct association between a recess and the rod beforehand. This ensures that under all working conditions, e.g. ice, rust, abrasion particles or the like jam or freeze the roll and thereby cause disruptions or G-noises that fetch » Ie is inevitably also turned »Preferably, in connection A corrugated washer is used with each roll so that the roll can be seen after exiting the torsion bar on closing the door does not turn freely and the next time the door is opened it is not set correctly for any recess on the torsion bar.

In two other embodiments, two knurled or corrugated rollers are used at a distance from one another ^ "and the hold-open effect in a partially open position \ v is achieved by the fact that the one role through its movement

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when the door is opened, the movable, resilient end of the torsion bar bends away and the door, depending on whether the two rollers are arranged at a suitable distance or close to each other, with or is kept open without freedom of movement. In any case, the second roller deflects the torsion bar so that the door in dar is held in the fully open position * Again, it is important that by corrugation or knurling the rotation of the roller or rollers by engagement with the torsion bar when opening and closing is ensured, whereby the wear of the contacting parts is reduced, easier, softer and quieter operation and the risk of a spring break is reduced.

In all four forms of training, the movable end of the torsion bar is laterally guided in a slot to to prevent overstretching and excessive actuation, which can cause the stick to work incorrectly, could that about the engagement takes place more or less far away from the normal contact position with the role.

In a further embodiment, the torsion works rod-arresting device between the wings of a hinge and is attached to one hill in an untensioned state. Of the Laterally protruding arm of the torsion bar stands with a roller on the other hinge wing when the hinge is closed not or almost not engaged and sets little or no initial movement in opening the hinge wings Opposition. In the vicinity of the fully open position, the bending of the arm and with it the resistance of the Torsion bar compared to the opening movement essentially see below, whereby a stop cooperating with the roller on the free end of the arm limits the open position.

Further features and advantages of the invention emerge from the following description with reference to the accompanying drawings

BATH QRiGiNAL S09808 / 0782

in which:

Fig. 1 is a plan view of a cage-shaped hinge with of the improved hold-open device according to the invention and shows the parts corresponding to the closed position of the automobile door;

Figure 2 is a side view of Figure 1; Figure 3 is a front view of Figure 1;

4, 5 and 6 in views corresponding to FIGS. 1, 2 and Figure 3 shows a similar hinge with a similar hold-open device show, however, at a distance from each other two toothed or star rollers on the one connected to the vehicle Hinge wing used to close the vehicle door both in one to hold middle as well as in a fully open position, while the on holding device of Fig. 1 to 3 limited to the fully open position;

7 and 8 show similar views to FIGS. 4 and 5, another hinge with a comparable hold-open device show, however, two knurled or corrugated rollers at a suitable distance from each other used to keep the open the door in a central and fully open position with a generally C-shaped torsion rod are in engagement, the distance between the two rollers a certain free ßewegungsstrecke the door allowed between these two positions;

Fig. 9 in a view similar to FIG. 7, two knurled or knurled shows corrugated rollers close together, which hold the door in two positions, but without the free movement in the Intermediate area, as allowed by the construction of Figs. 7 and 8}

909808/0782 ^{BAD 0RK5lNA} L

Pig. 10 is a perspective view of a further embodiment of the invention;

Ed. 11 in a view similar to Pig. 10 yet another Represents shape in which one leg of the torsion bar forms the hinge pin;

Pig. Figure 12 is a similar view of a modified embodiment of the hinge shown in Pig, 11; and

Pig. 13 is a top plan view of the in Pig. 10 shown hinge shows on a reduced scale.

Similar reference numbers are used in all illustrations to denote the corresponding file «,

With reference to the drawings and initially in particular to Figures 1 to 3, 9 denotes the inner bracket of a cage-shaped hinge connected to the vehicle and rotatably connected by means of a pivot pin 11 to the outer bracket 10 attached to the door. Both pebbles 9 and 10 are made of bent sheet metal, pebble 9 has three bores 12 for the passage of bolts for fastening to the vehicle, pebble 10 has just such three bores 13 for fastening to the door. Both pegs 9 and 10 are usually L-shaped, with one surface 14 of the plow 9 being attached to the vehicle, while the other surface 15 has the axle pin 11 at its outer end for rotatable connection with an intermediate piece of the one surface 16 of the plow 10 carries. The other face 17 of the pail 10 is attached to the door. Both plugs are usually U-shaped in cross-section. The torsion% from 19 is attached to the paddles 18 of the plow 9; the axle pin 11 is mounted at 20. The planes 21 of the plügel 10 have inwardly bent, provided with a bore parts 2 2 for receiving the pin 11 and for storage with the upper and

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the lower "flange of the inner wing 9" as in FIGS. 2 and 3 shown. The upper flange 21 of the wing 10 carries at the outer end of the surface 16 a stepped Hiete 23, on which a corrugated Spring washer 24 and a toothed or star roller 25 are fixed at a certain distance from the pin 11, with the downward cranked portion or stop pin 26 of the upper arm 27 of the generally S-shaped torsion bar 19 in engagement stands. The center piece 28 of the torsion bar is vertical and arranged parallel to said downwardly cranked end 26 and engages in perpendicular "arranged grooves 29 within the upper and lower flanges 18 of the wing 9. The lower arm 13 of the torsion bar has an upwardly cranked, vertical one Piece 31 which is attached to a rabbit 32 at one end of the lower flange 18 of the inner wing 9 in that the nose 32 is received by a groove 33 which transversely into the End 31 is milled. The torsion bar 19 consists of a round, high carbon steel, and the lower arm 30 is normally at an angle with respect to the upper 27, as shown in Fig. 1 by the dashed line a-b. This angle is shown for illustration purposes only and does not show the angle actually required. which can be larger or smaller depending on the pretension that the torsion bar 19 must have for the hinge. The torsion bar is heat-treated before installation in the inner hinge wing 9. During the installation, the intermediate piece is first inserted into the flutes 29 so that the downward cranked end is perpendicular to the slot 34 in the upper flange of the wing 9, then the torsion bar is inserted with the end down into the slot far enough that it goes up cranked piece 31 below the lower flange of the inner Hinge wing 9 'is located. Finally, the lower arm 30 of the torsion bar is rotated sufficiently far in the counter-clockwise direction, see above that "'b" 6i an upward movement is possible, the cranked piece 3Ί, as shown in Fig. 2, behind the Sase 32 and bring this to be inserted into the groove 33. In this way, the torsion bar receives its desired 'preload and provides a firm,'

909808/0782 ^{BAD 0RK3! NAL}

resilient component of the inner hinge wing 9 the upper arm 27 can resiliently move a limited amount and swing back, as is necessary for keeping it open when the Eolie 25 is fully in its position when the vehicle door is opened open position with the end 26 is in engagement and this, bends. By having the end 26 in one of the grooves between engages the projections on the Holle 25, the role is at this actuation rotated by a small angle and holds the for in the fully open position, with the arm 15 of the inner hinge wing 9 abuts a stop plate 35. This is welded to lugs 36, which extend upwards and downwards from the lower and upper walls of the outer hinge wing 10. are bent downwards. As from the two arcs 37 and 38 in J? Ig. 1 you can see the door a little further move after the roller 25 has grasped the end 26 of the rod 19 and bent it. The slightly shorter arc 37 measures the path of the Door from the closed to the open hold position, the longer arc 38 covers the full range of door movement from the closed! to the fully open position. The fact that the depicted The difference is only 3 degrees, is not a limitation. Rather, it is the hinge shown happened to be one for a rear automobile door. Usually one becomes more free movement for a front door allow. .

When actuated, the toothed or star roller 25 may be rotated through a small angle when opened is necessary to one of their grooves with the end 26 of the torsion bar 19 to engage. While they end 2 (> to '"for fully opening the door and takes it with you, it will continue to be rotated by a certain angle. The wavy spring washer 24 applies enough friction to the roller to secure it from any further twisting when it releases the torsion bar. As a result, the two parts mesh precisely with each other with each subsequent contact and the role only becomes iac each time a small angle when opening in one, when closing in

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twisted the other way. This is how the hold-open device differs from those that act as a result of ice, rust, Abriet or fail for other reasons, but always works softly and quietly and requires little effort. As a result of different mechanical advantages that result from it, that the individual parts are at a more favorable angle to one another when the door is opened, less force is required to engage the hold-open device than to release it when the door is closed. This is advantageous because this ensures that the door does not accidentally, e.g. Bo from a sudden wind or an accidental bump unintentionally closes. The fact that the door except im the last part of the opening movement is also a great advantage, especially in such installations where the door has to be moved up to open and nichi an additional resistance should be overcome »Another The advantage of this form is that the door is mostly is only opened a little, e.g. B «. if the place in a garage or a parking space is limited and that such a hold-open device is still in such an area does not respond. Another important advantage of the invention is the fact that the movable resilient end 26 of the Torsion bar 19 through a guide between the sides of the slot 34 in the event of a bending caused by the roller 25 is guided laterally. As a result, the torsion bar can not be overstretched and deflected so far from the roller 25 that it failure or unreliable operation of the hold-open device would result. The service life of the torsion bar should « te be at least as big or bigger than that of the vehicle, oftae that the need for this part occurs because of breakage or wear to replace. The same applies of course to the roller 25 and the spring washer 24. Should the roller 25 ever show any wear, it can easily be so twisted become that another groove comes into engagement. However, such a need is not likely.

909808/0782 BADORK ₃₁ NAU

In Figures 4 »5 and 6, a construction is shown which is very similar to that of Figures 1,2 and 3. FIG. On the hinge ^{wing 10f} , however, two toothed or star rollers 25 are shown, of which when the door is opened first one comes into engagement with the torsion bar in order to hold the door in an intermediate position indicated by the arch 39, while the other as further The purpose of opening is to put the door in

to hold the indicated by the arc 40 fully open position. Depending on the distance between the two shoulders 25, the door has In the middle position there is still a certain amount of free play, and as can be seen from a comparison of the two circular arcs 40 and 41, it can still be moved through a small angle in the fully open position. In addition, the mode of action is this hinge that of those shown in FIGS. 1, 2 and 3 Arrangements the same.

The torsion bar 19 'shown in FIGS. 7 and 8 has an approximately C-shaped shape, which results from the fact that the lower arm 30' is cranked in the same direction as the upper arm 27 'with respect to the middle piece 28. and in a slot 32 'within the lower wall of the wing 9 ¹ is inserted. In the untensioned state, this lower arm 30' runs opposite the upper arm 27 ^r under a in the ^ ig. 7 by the line a ¹ -b ¹ shown angle, but not necessarily exactly this size »When installing the rod 19 in the inner hinge wing 9 ¹ , the end 26 of the upper arm 27 ^f is first in the slot 34 in the same Inserted in the same way as above, then the lower arm 30 * is rotated counterclockwise until the upwardly cranked end 31 ', as can be seen in FIG secured with the groove of the cranked end 31 'in the slot 32'. Otherwise the torsion bar 19 works ^! just like the one shown in FIGS. 1 to 6, instead of the 7-shaped grooves 29 used there, there are bayonet slots here

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29 'provided. The rollers 25 'are only knurled or fluted and turn on the mete 23 '. The operation is similar to "in the figures 4" to 6, with free movement of the door in the Middle position and to a lesser extent also in the fully open position is possible (see the arcs 42 to 45).

In a modification of the construction of Mg. 7 and 8, FIG Fig. 9 dio two rollers 25 ″ close together, whereby a Stop near the fully open position of the door is conveyed without leeway. Otherwise this construction works just like that of Figures 7 and 8.

The embodiments of FIGS. 10 to 13 show containment devices in connection with hinges in which the torsion bar is not pretensioned and when the Hinges is essentially unloaded.

In Figures 10 and 13, the torsion bar 19a is anchored with its arm 31a by a bracket 45 on the hinge wing 9a. The lateral arm 27a of the torsion bar carries a stop 26a which cooperates with a hollow 25a on the wing 10a, to limit the fully open position of the hinge. The hinge is completely free to move from the closed to the open position, and the torsion bar is up to Contact of the arm 27a with the roller 25a unloaded. When the hinge wing moves to the fully open position the arm 27 * becomes through the resistance of the torsion bar curved and opposes the further opening movement increasing resistance. The stop is in the fully open position 26a of the arm 27a engages with the roller 25a and, due to its shape, holds the door open in this position.

The embodiments of FIGS. 11 and 12 are fundamental similar to those of FIGS. 10 and 13, but additionally have the property that the end 31b or 31c of the connection

909808/0782. BAD ORlG ₁ NAL

anchoring arm of the torsion bar forms the axle pin to the the hinge wings rotate. As shown in Figure 11, the arm 27b may be provided with a bulge 46b to provide a Allow middle position.

In the two last-described embodiments, the fully open position of the hinge is through a Fighter bounded between the two hinge wings »This arrangement may be unsuitable for some types of hinge, or it may be possible that other means of such limitation may be used should be provided. In a further embodiment (not shown), the torsion bar is used by one of the two as above Hinge wing added, while the other hill is provided with a hook and the opening angle of the hinge limited by a fixed part of the torsion bar, usually by the end of the anchoring arm, which is in a groove of the said wing intervenes.

909808/0782

Claims (1)

Claims lbo4Uoo 1 J Door hold-open device that is between two against each other _jüehbaren G-members is attached and from one to the one member fixed torsion bar with a laterally protruding arm, at the outer end of which a stop pin is provided, and. a stop attached to the other link and cooperating with the stop pin, characterized in that that the stop (25) over the greater part of the rotary path of the two members (9, 10) is essentially free and less or no resistance through the arm (27) and the stop pin (26) is movable, but in the remainder of the rotary path with the arm and the stop pin is engaged such that the arm (27) is deflected against the resistance of the torsion bar (19) and mediates a locking interruption or holding position in the rotary movement. 2. Türaufhaitvorrichtung according to claim 1, characterized in that that the stop pin (26) runs essentially parallel to the torsion bar (28), that the axis of rotation (11) to the torsion bar is parallel and the stop (25) with the other rotary member (10) on a circular path in a perpendicular to the axis of rotation ■ level moves, and that the torsion bar (19) the stop pin (26) leads into the path of the stop (25), thereby creating a resistance to the stop moving sioh into the open position to oppose. 3ο door hold-open device according to claim 2, characterized in that that the arm (27) carrying the stop pin (26) is arranged at such an angle with respect to the path of the stop (25) is that a greater force is required to bend the arm in the closing direction than in the opening direction. 4. Türaufhaitvorrichtung according to any one of the preceding claims, characterized in that the two mutually rotatable members (9 »10) consist of the door and the door frame of a motor vehicle exist. 5. Door hold-open device according to one of claims 1 to 3, characterized characterized in that the mutually rotatable members are the two wings (9 "10) of a hinge". 6. Door hold-open device according to claim 5 »characterized in that. that the stop is a roller (25) on a hinge axis parallelfin fixed axis (23) on which a hinge wing (10) is attached. 7. Türaufhaltvorriehtang according to claim 6, characterized by a stop plate (35), which the rotational movement between the Hinge wings (9 »10) limited in a fully open position, in which the engagement of the fellIp (25) with the stop pin (26) the freedom of movement of the hinge wings is fixed. 8ο door hold-open device according to claim 6 or 7, characterized in that that the hollow (25) has a corrugated or knurled surface in which the stop pin (26) engages and as a result, the roller (25) rotates as it moves past, 9. Door hold-open device according to claim 6 or 7, characterized in that that the roller (25) has a series of projections and grooves on its circumference for receiving the stop pin (26) and is secured against self-rotation by a resilient washer (24), so that the stop pin with each actuation engages in the same groove. 1Oe door guide device according to one of claims 6 to 9 »marked through an elongated slot (34) in the hinge BATH 158A039 wing (9), which is used to guide the Ansehlagstiftes (26) of the torsion bar (19) is used and with its one end limits the position of the stop pin in the direction of movement of the roller (25). 11. Door hold-open device according to claim 10, characterized in that that the torsion bar (19) at the end with respect to the stop pin (26) other end for generating a bias second laterally protruding anchoring arm (30) which extends with its substantially in the sighting of the hinge axis The end (31) engages in an abutment (32) on the wing (9). 12o door opening device according to claim 1, characterized in that that the end (31) of the anchoring arm (30) engages in the abutment (32) so that the torsion bar (19) against axial displacement is secured. 13o door hold-open device according to claim 11 or 12, characterized in that that the wing (9) carrying the torsion bar (19) has flange-like walls (18) on opposite sides, one of which is provided with a slot (34) for receiving the stop pin (26), which has a predetermined deflection path of the stop pin, and the other with an am End located projection (32) engages in a groove (33) in the end (31) of the anchoring arm (30). 14. Door hold-open device according to one of claims 6 to 13 »thereby characterized in that, in addition to the first roller, a second roller (25) protrudes on the same hinge wing (10) is attached to part of its circumference with the stop pin (26) of the torsion bar (19) comes into engagement, the associated laterally protruding arm (27) bends and during the opening and closing movement of the hinge leaves (9 » 10) rotates behind the stop pin (26) to hold the door in an intermediate position. 909 8 0 8/0782 15. TüraufhaitYorrichtang according to claim 14 »characterized that the free movement of the hinge wings (9 »10) in the intermediate position is determined by the distance between the two lobes (25) will. 16o door hold-open device according to claim 14 or 15 »characterized in that that the second roller (25) has a knurled or corrugated surface into which the stop pin (26) engages when touched and rotates the roller as it moves past. 1 7o door hold-open device according to one of claims 1 to 5 »" thereby characterized in that the one hinge wing (10a, 10b, 10c,) has a hook for the inevitable limitation of the rotational movement (25a, 25b, 25c), which is connected to a fixed part of the torsion bar s (19a, 19b, 19c) attached to the other wing (9a, 9b, 9c) cooperates. 18. Door hold-open device according to claim 17 »characterized in that that the stop pin (26a, 26b, 26c) defines the fully open position of the hinge. 19. Door hold-open device according to claim 17 or «18, characterized in that that a laterally protruding arm (27a, 27b,) of the torsion bar (19a, 19b) has an indentation (46a, 46b) for Has holding the door in an intermediate position. 20. Door hold-open device according to one of "Claims 17 to 19, characterized characterized in that the other end of the torsion bar (19a, 19b, 19c) with respect to the laterally protruding arm is a] Anchoring arm (30a, 50b, 30c,) carries the one hinge wing (9a, 9b, 9c) cooperate at a point laterally offset with respect to the torsion bar. BATH ORIGINAL 909808/0782 21. Door opening device ns.ch claim 20, characterized in that that an extension (31b, 31c,) of the anchoring arm (30b ,, 30c) is designed as an axle pin on which the two hinge wings (9b, 9c and 10b, 10c) rotate » BAD ORDINAL