DE1935862U - TRAP DOORS WITH BALANCING FOR VEHICLES. - Google Patents

Description

DR. MÜLLER-BORE DILPL.-lNG. GRALFS DR. MANITZ

PATENT LAWYERS

G 29 200 / 63C Gbm January 20, 1966

Bol / Sv - G 1585

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General Motors Corporation Detroit, Michigan / USA

Car door

The innovation affects a vehicle door that is close to the roof arranged horizontal axis is pivotably mounted and has two torsion bar springs, one end of each is set and the other end has a cranked 3} part, which can be pivoted by a linkage the body is connected in such a way that the door is acted upon by a feather weight compensation force.

There are already three vehicle doors known that are arranged around a horizontal, axis running approximately at roof height can be pivoted and have torsion bar springs for weight sausgTeich, which are connected to the car body.

The! Inflation has set itself the task of improving it To create vehicle door of the type mentioned above, the

Form 3 3000 10. 65

has a very simple and effective structure and can easily be adapted to the body shape.

Here the innovation provides that the two torsion bar springs are arranged parallel to one another on the door and that each of the torsion bar springs are cranked on their End with a linkage hinged to "the door post is pivotally connected.

Furthermore, it can be provided that the fixed end of each torsion bar spring is anchored adjustably.

The innovation is besc in the following with reference to the drawing hrittenj in this show:

Figure 1 shows a rope of the rear view of a so-called station wagon with a door according to the Innovation "in the rear wall with gate directions for weight compensation,

FIG. 2 is an enlarged view of part of FIG Scale, 'in which parts have broken away,

Figure 3 is a view taken generally along the plane 3-3 of Figure 2;

Figure 4 · a view similar to Figure 3 »in cLer the door in shown in the open position,

Figure 5 is a perspective view of the torsion bar springs,

Figure 6 is a view similar to Figure 3j in one Another embodiment of the innovation is shown with the door in the closed position,

Figure 7 is a view of part of Figure 6, in which the Door is shown in the open position, and

FIG. 8 is a perspective view of part of FIG Figure 6 on an enlarged scale.

Figure 1 shows a car body 10 in the manner of a station wagon with a rear opening 12 leading from a rear Trap door 14 is opened and closed, which, as shown in FIG. 3, can be rotated by means of suitable hinges 16 its upper edge is attached to the car body 10 and between a closed position (Figure 1 and $) ~ and an open position (Figure 4) is reciprocable. The door 14- is supported by a counterbalance device in accordance with an embodiment of the innovation which will be described below, held in equilibrium.

-. ZJ. -

A pair of torsion bar springs Ί8 and 20 is mounted inside the vertically opening door 14, the torsion bar springs having laterally bent Yerankerungsenden 22 and 24, which are respectively on the opposite side walls 26 and 28 of the vertically opening
They are held in place by clamping brackets 30. The torsion bar: 18 extends through an opening in wall 28
to the outside of the trap door and is on the wall
mounted in a socket 31 which is held by a bracket 32 which is attached to the inside of the wall. In a similar way, see the torsion bar spring 20 through an opening in the wall 26 to the outside of the trap door and is mounted on the wall in a bushing 34 which is connected to a bracket 36 on the inside of the
Wall 26 is attached. The torsion bar springs are with
correspondingly flattened cranks 38 and 40 are provided, which are rotatable with respect to the corresponding walls 28 and 26 about the axes of the torsion bar springs 18 and 20 during the opening and closing movement of the trap door. The upper ends of the cranks 38 and 40 are rotatably connected at 42 with levers 44, the lower ends at 46 with brackets
48 are rotatably connected, which on the Seitenwändeh 5 © and. 52 of the car body are attached next to the side walls 26 and 28 of the trap door.

The torsion bar springs are shown schematically in FIG 18 and 20 each rotated with respect to their abutment ends 22 and 24, around their cranks 38 and 4-0 towards the inside and in the opening 12 downwards or, as can be seen in FIGS. 3 ^ and 4, counterclockwise to press. When the trap door 14 is closed, as shown in FIGS. 1, 2, 3, the Offsets 38 and 40 and their corresponding levers 44 side by side and come into the space between the side walls 26 and 28 of the trap door and the corresponding walls 50 and 52 of the car body.

When the trap door is opened, levers 44 are rotated downward and toward the outside of the car body opening, wherein the torsion bar springs 18 and 20 relieved and the cranks 38 and 40 downwards and in the direction of the trap door 14 can be turned away, as shown in Figure 4, to assist the opener in moving the trapdoor 14 into the open position. If the trapdoor is open, shoulders 54 of the levers strike against the cranks 38 and 40 of the torsion bar springs and form so limit stops and prevent the toggle levers, which are formed by the crankings and the levers, from Reaching "a dead center position. The shoulders 54 are formed by laterally reinforced flanges 56, which consist of one piece with the levers 44.

When the trapdoor is closed, the person moving is that the toggle levers are not completely aligned with one another, contrary to the effect when the toggle levers are folded the torsion bar springs 18 and 20 supported.

Another embodiment will now be described with reference to FIGS of the innovation, where the same numbers are used for the same parts. In this embodiment the rear lall door 14- is attached to the car body by means of suitable hinges 58, which to iiiffin both sides are attached to a rotational movement between a closed position, as shown in FIG. 6, and an open position, as in FIG Figure 7 shown to enable. A pair of torsion bar springs 60 and 62 are mounted inside the trap door 14, wherein the bent ends 64- of the leather each to the Walls 26 and 28 of the trap door 14 · anchored and the oppositely lying offsets 66 of the torsion bar springs outside and next to the walls 26 and 28 of the trap door are attached and terminate in short, lateral ends 68. A pair of similarly fortified Brackets 70 and 71 are attached to walls 26 and within the trap door, respectively, each bracket having one side, slotted rope 72 and a side, has notched flange 74-. The flange 72 of the

The bracket 71 takes the end of the torsion bar spring 62 as a bearing on. The bent 13n.de 64 of the torsion bar spring is in the Flange 74- adjustable-anchored. The flange 72 of the bracket 70 takes one end of the torsion bar spring as a bearing. The bent end of the torsion bar is also there anchored adjustable in the flange 74 thereof. The other The end of the torsion bar spring 60 extends through aligned openings in the bracket 71 pjad of the wall 28 outward, "while the other end of the torsion bar spring 62 through aligned openings in the bracket 70 and the wall 26 to the outside "extends.

The ends 68 of the torsion bar spring.;, Are rotatable with the lower Ends of the levers 76 connected, the upper ends of which, respectively at 78 on the hinges 58 at a certain distance are rotatably mounted; However, they can also be rotatably attached to mounting brackets, if desired, which are attached to the side walls of the opening 12.

When the trap door 14, as shown in Figure 6, is closed, the toggle levers, which consist of the levers 7ö and the There are cranks 66 of the torsion bar spring, not quite in a laterally collapsed position. When the trapdoor is opened as shown in Figure 7, the toggle levers go apart, the levers 76 opposite the car body, beat backwards and upwards and the crooks

gene 66 of the torsion bar springs opposite the trapdoor rotate backwards and upwards. It should be noted that the levers 76 and the cranks 66 are so arranged are that the toggle levers formed from them do not come into a fully extended position, "but in their Rather, movement is limited to a partially angled position to one another in order to allow easy mobility the trapdoor between her open and her closed one To ensure position. It should also be noted that this embodiment differs from the first Embodiment of the hiring differs in that the lever 75 and the crankings 66 are rotated apart Position immediately next to the side walls 26 and the trapdoor so that they do not fall into the opening of the Car body protrude to make it easier to get in and out To allow getting out of the stomach box.

This embodiment of the innovation has a further advantage over the first embodiment in that that less stress is placed on the hinges in the closed position of the trap door is, whereby their service life is increased »In the first embodiment according to Figure 3 cause the crankings 38 of the torsion bar spring that the lever 44 to the inside of the car body when the trapdoor is visually

sen, and only the trapdoor itself limits this movement. Correspondingly, the bent ends 38 » that the levers 44 rotate downward and turn themselves the vertically opening ÜJür 14 downwards in Eichtung move the lower wall of the opening 12, placing considerable stress on the hinges 15 exercise. In the case of the one shown in FIGS As an embodiment of the innovation, the offsets 66 the torsion bar springs the lever 76 opposite the. Car body Push up and, as the upper ends of this lever either with the hinge bracket of the car body or brackets are rotatably attached, which are attached to the side walls of the opening 12, is the force in greater measure from the car body than from added to the trapdoor in order to reduce the stress on the bracket.

Claims (2)

P.A. 036 323 * 21.1.66 dr. müller-borie-: dipl.-ing. gralfs Dr. manitz PATENTANWÄLTE G 29 200 / 63G Gbm January 20, 1966 General Motors Corporation Bol / Sv - G 1385 claims for protection 1. vehicle door arranged around a near the roof horizontal axis is pivotally mounted and has two torsion bar springs, one end of each is set and the other end has a cranked part that can be pivoted by a linkage the body is connected in such a way that the door is subjected to a spring weight compensation force, characterized in that the two torsion bar springs (18, 20) parallel to each other on the 3Hir (14) are arranged and that each of the torsion bar springs at their bent end (38, 40) with a linkage (44) hinged to the door post (52) pivotable? is connected. 2. The vehicle door according to claim 1, characterized in that the fixed end (64) is a each torsion bar spring is anchored in an adjustable manner (Fig. 7) BRAUNSCHWEIG, AM BÜRGERPARK β 'S "(OS31) 2 84 87 8 MUNICH 22, ROBERT-KOCH-STR. I' S * (0811) 22 51 IO Form 3 3000 10. 65