SU1737090A1 - Arrangement for opening and closing doors - Google Patents

Abstract

Use: in transport equipment. Entity: the device comprises pivot arms hingedly connected with the frame and sash, the axes of the hinges are perpendicular to the plane of the sash. The hinges at the base of the levers are mounted on the frame. The swing arms of each flap are maximally spaced along its height and form a four-berth. 2 hp f-ly, 3 ill.

Description

The invention relates to a transport technique, in particular, to devices for opening doors of a vehicle, for example a city bus.

A device for opening and closing a vehicle door is known, comprising a door panel that extends outwardly and has the possibility of sliding sideways parallel to a side wall of the body, a guide groove, a main link that can be rotated in a horizontal plane. At the end of the main link there is a toothed sector which is engaged with the rail and can be rotated 90 °.

The disadvantage of this design is its complexity due to the large number of parts.

When the door panel is moved along the steering groove due to the ingress of dirt into it, the door panel may be jammed, resulting in damage to the guide groove, an increase in backlash and

reduce the reliability of the sliding mechanism as a whole.

It is also known a device for opening and closing a door, comprising pivoting levers, each of which has means for swiveling with the frame and sash to form a four-link.

The disadvantage of this design is the increased departure of the door when it is opened beyond the size of the vehicle body, which negatively affects the safety of incoming passengers, as well as when the door is open, the lower lever prevents passengers from entering and exiting, which reduces passenger traffic in public transport.

The aim of the invention is to improve the performance characteristics by ensuring minimum door extension for the dimensions of the bus when it is opened and closed.

Fig, 1 shows the described device, a general view; FIG. 2 is a view of

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arrow A in FIG. one; on fig.Z - view along arrow B in figure 1,

A device for opening and closing a vehicle door, in particular a bus, is made in the form of a four-berth. Two links that are pivoting levers 1 and 2, with one end (hinges 3 and 4) are hinged on the door panel 5, and ends 6 and 7 are fixed on parallel axes x 8 and 9 of the body. The axes 8 and 9 of rotation of the pivoting levers 1 and 2 are arranged perpendicular to the plane of the door 5. The lengths of the pivoting levers 1 and 2 are equal to each other, and the axial hinges 3 and 4 are installed in a vertical plane perpendicular to the plane of the door 5. The lower pivoting lever 2 is installed in The inner cavity of the door 5, On the panel of the door 5, clamps 10, 11, 12 and 13 are installed, located on the same horizontal straight 14 and 15 with the hinges 3 and 4 of the swivel levers 1 and 2.

When the door 5 is opened, the pivoting levers 1 and 2 with a force directed outward move the flap up beyond the plane of the body bead 16, after which it moves parallel to the body bead radially in the vertical plane by translational-rotary movement of the pivoting levers 1 and 2. Closing two - ri 5 is carried out in reverse order.

For a stable position of the door panel 5 in the vertical plane when it is displaced parallel to the plane of the body 16, the pivot levers 1 and 2 are maximally spaced along the height of the door panel.

In order to limit the opening-closing zone of the door, on the door 5, clamps 10, 11, 12 and 13 are installed, in which the pivot levers 1 and 2 are fixed with ends 6 and 7.

The invention allows increasing the safety of the passenger door of the city bus by ensuring minimal door extension beyond the dimensions of the bus, as well as increasing passenger traffic due to the absence of levers in the aisle zone.

Claims (3)

1. A device for opening and closing the door of a predominantly vehicle, comprising pivotal levers, each of which has means for swiveling with the frame and sash to form a four-link, characterized in that, in order to improve the operational characteristics due to the minimum extension of the flap beyond the dimensions of the transport the means, the pivot points of rotation of the levers are perpendicular to the plane of the flaps, and the hinges associated with the base of the levers are mounted on the frame. 2. The device according to claim 1, that is, with the fact that the pivoting levers are located in the internal cavity of the valves. 3. The device according to claim 1, wherein it is provided with retainers located on the same horizontal straight line with the hinges of the levers. 1737090 BudA sixteen / T 1 3 FIG. 2 Bad 6 - h