DD143235A1 - AUTOMATIC SAFETY TRACKS, PREFERABLY FOR TILTING DRIVER HOLES ON MOTOR VEHICLES - Google Patents

Abstract

The invention relates to automotive engineering. The aim of the invention is a better security in the operation of Sicherheitsstütse and improved working conditions for the operator. The object of the invention is a

Description

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Automatic safety support, preferably for tiltable cabs on motor vehicles

The field of application of the invention is the automotive technology. The objects of the application are tiltable cabs on tongue and groove wagons. An application to other structures of motor vehicles, such as tilting dock levelers, is also possible. Characteristic of the technical solutions

Safety supports are already known which are formed either from a rigid, rod-shaped or several, usually two, parts connected by joints. These can be used either for hydraulic or mechanical tilting force actuation. The already known, provided with hinge and referred to as so-called buckling supports safety supports often do not meet the ECE regulations, which requires an automatic engagement in the tilted position, a manual unlocking from the tilted position and automatic return to the starting position. Other known solutions have the disadvantage that the person unlatching the driver's cab enters the tilted driver's cab and has to keep the power supply device open until a certain

Swing angle is covered.

This is not a safety-friendly solution. The mentioned and already known supports are described in DE-AS 18 11 189 and SU-PS 42 89 74

 £ iel_der_Erfindung

The aim of the invention is a better safety in the operation of the safety support and improved working conditions for the operator »2 ^ -Essen_de ^ _Erf indung

The technical ^ ^ gave up

The technical object of the invention is to provide a safety sfefe, which complies with the ECE regulations and their unlocking when tilted state of the Falirerhauses from the outside, without having to step under the tilted cab, is possible.

The automatic safety support is designed in their Grundauf construction on the principle of the known so-called kink or joint support.

The individual pivot arms are preferably made of TJ-Profllen and are pivotally connected to each other in their pivot point.

In this case, the upper part of the frame-side pivot arm comprises the lower part of the driver's cab side Schsrenkarmes. There are two stop pins available, where the support is locked by the concerns of the upper edge of a swivel arm in the printing direction

 On a pivot arm is a against the force of a spring rotatable about a pivot hook plate,

which can engage in a grid pin arranged on the other pivot arm according to the principle of the hook latch. The features of the invention are that the hook plate next to the hook segment and the leading edge has a release lever, a Entriegelungszwischenstufe, another leading edge and a contact edge and daS the hook plate on one of the stopper bolt

is stored.

On the second pivot arm is a against a tension spring in an iangloch movable Zwischenrastbolzen, in which after rotation of the Bakenbleches about its pivot point the Entriegelungszwischenstufe.

In any case, the distance from the rotation and connection point of the pivot arms to the outer contour of Entriegelungszwischenstufe must be greater than the distance from the pivot point of the hook plate to the lower radius contour of the elongated hole in the pivot arm.

The distance between the pivoting and connecting points of the swivel arms and the pivot point of the hook plate must be greater than Hull · The support engages automatically and safely when the cab is tilted. It is operated manually from outside without going under the tilted cab brought the unlocking intermediate position and is automatically ready after tilting back of the cab for the next tilting operation.

This not only fully complies with the SCE regulation, but also achieves a high degree of operating safety.

Furthermore, the support can be used both for hydraulically and mechanically (torsion bars) tilting cabs.

The drawing belonging to the exemplary embodiment shows in FIG. 1 the functional part of the safety support in zv / ei positions for a tiltable driver's cab of a motor vehicle. The pivoting arm I rotatably mounted on the vehicle frame is in common pivot point via the bolt 1. DP ,, articulated with the driver's cab side rotatable, mounted pivot arm II. The pivot arms I; II which are preferably made of U-profiles $ are arranged so

3> 5 that in the extended state of the support (cab tilted), the upper part of Schwenkariaes I the lower

Rope of the swing arm II includes and the closed sides of the U-profiles sieve, in this area opposite.

In order to prevent that during the tilting process on the support a dead center or Übertotpunktlage enters end an automatic return to the starting position of the support (buckling) is possible, the stop pins 2 and 3 are arranged at the top of the ßchwenkarmes I, which the Keep the support at a low bending angle and at which the upper edges of the Sohwenkarmes II come to rest. The bolts 2 and 3 are thus at the same time contact points with tensile force (support locked in this direction) and Kippwinkelbegrenzungen, as si prevent further Nachvornkippen the] häuserhauses. On the stop pin 3, the hook plate 4- is rotatably mounted against the tension spring 5. When Eochkippen the cab and just before reaching the stretched position of the & Tütse the hook plate when pivoting the upper rope of the Schwenk ™ arm I about the pivot point DP _x , by the casserole edge 4d thereon and against the tension spring 5 as far from its position to the pivot point DPp is unscrewed until it engages with its hook segment 4c in a grid pin 9 arranged on the swivel arm II. The support is thus automatically locked even in the compression direction.

When unlocking the support is on the release lever 4-a, which can reach far to the I'ahrzeugaußenkante, and the pivot point DPp and against the tension spring 5, the hook plate 4 as far removed from its position until the unlocking sz thereon wiping stage 4b in the on the swing arm II in a slot 8 movable and against a- ¹ tension spring '? arranged intermediate latch bolt 6 engages. This engagement is by moving the Zwischenrastbolzens 6 in the slot through the check plate 4 located on the edge 4e

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allows against the tension spring 7, until the cutout of Entriegelungszwischenstufe 4b is reached and the intermediate latch bolt 6 can engage therein. The support can now swing back (cab can be tilted), since the hook segment 4c is turned out of the Hasterbolzen 9. Upon further tipping back of the cab, the intermediate latch bolt 6 is unscrewed from the EntriegelungsZwischenstufe 4b and the hook plate 4 snaps through the meantime made rotation of the support and by the tension spring 5 with the leading edge 4d against the Easterbolts 9 · Upon further turning back of the support in the bent position slides Casserole edge 4d on Easterbolzen 9 along until the bolt is passed and the hook plate 4 can get back to the starting position.

In this case, the abutment edge 4f of the Eakenbleches 4 at the upper closed edge of the swing arm I at. Essential for the function of the raster device is the Eadienverhältnis, with the proviso that the Eadius H * (pivot point DPy, to outer contour SntriegelungsZwischenstufe 4b) is substantially greater than the Eadius E ^ (pivot point DP ₂ to lower curve contour slot 8) and continue the radii through the measure a is not in flight. This is necessary so that the outer contour of the BntriegelungsZwischenstufe 4b when Bin rests (tipping the cab) rotates past the intermediate latch bolt 6, while unlocking and turning to DP, -, the Entriegelungszwischenstufe 4b to the intermediate latch bolt 6 snaps »The support snaps when tilting the cab automatically and safely, is manually brought into the interlocking position externally without having to bring the entire body under the tilted cab, and is automatically ready for the next dumping process after the driver has tipped back,

Claims (2)

J ^ findunssansgruch Is.  '.. Automatic safety support, preferably for tiltable cabs on motor vehicles, according to the principle of kink support, consisting of profilfönaigen, rotatably interconnected pivot arms, with the support in the direction of pressure blocking stop pin and a rotatable against spring force hook plate which snaps into an associated Easterbolzen, characterized that the hook plate (4) with hook segment (4c) and on running edge (4d) a release lever (4a) ,. a Sntriegelungszwischenstufe (4b), a further Auflauf edge (4e) and a contact edge (4f) and has on the stop pin O) and rotatably mounted around this · 2. ' Automatic safety support, preferably for tiltable cabs on motor vehicles, according to item 1, characterized in that on a pivot arm (II) against a tension spring (7) in a slot (8) movable intermediate latching bolt (6) is arranged. Automatic safety support, preferably for tilting. bare F _a stirrer houses on motor vehicles, in accordance with point "1 and 2, characterized in that the distance from the pivot point (DP ,,) of the pivot arms (I; II) to the outer contour of the Entriegelungszwischenstufe (4b) is greater than the distance from the pivot point (DPP) of the hook plate (4) to the lower Eadiuskontur the slot (8) and that the distance between the pivot point (DP ^) of the pivot arms (I; II) and pivot point (DP ₂ ) of the hook plate (4) is greater than zero. For this purpose 1 sheet drawings S