CS276623B6 - Superstructure suitable for agricultural two-axle tractor trailer - Google Patents

Abstract

The superstructure suitable for. an agricultural two-axle tractor trailer consists of a superstructure frame (2), on which a base platform (3) is optionally placed. Directly connected to the superstructure frame (2) or to the base platform (3) are at least one extendable platform (4), at least one lifting platform (9) and optionally at least one auxiliary platform (7, 8), suspended on the side of the superstructure frame (2). The extendable platform (4) and optionally also the lifting platform (9) have a bottom (41) extendable on both sides with side walls (42). The lifting platform (9) is equipped with a scissor lift (91), controlled by a linear hydraulic motor (11) of the tractor trailer (1). The base frame (2) of the superstructure is equipped with supports (5, 6) on both sides.

Description

1 CS 276623 B6

BACKGROUND OF THE INVENTION The present invention relates to a superstructure suitable for agricultural two-axle tractor trailers comprising a superstructure frame on which a base platform is mounted. The superstructure is intended for use in large-scale fruit production and for carrying out construction and maintenance washing machines in agricultural premises.

Previously known embodiments of working platforms for cutting fruit trees and harvesting fruit and vegetables are permanently connected to a chassis, which is a trailer or a self-propelled motorized chassis. They are made for a precisely determined purpose. They are provided with manipulation means for handling and transporting containers with man-made fruit, or with tools and tools for cutting trees. It falls by all means simultaneously, but with limited conditions. A disadvantage of the known designs is that the devices are expensive, used only for a short time during the year. Their solutions do not allow for a faster change in platform design and their wider use in changing working conditions.

The described disadvantages are largely eliminated by the superstructure for an agricultural two-axle tractor trailer according to the invention. It consists of a superstructure frame and, optionally, a base platform mounted thereon.

The essence of the invention is that at least one pull-out platform, at least one lifting platform, and at least one auxiliary platform hinged on the side of the frame are connected directly to the superstructure frame or to the base surface. The telescopic platform and possibly also the lifting platform are provided on both sides with an extending sidewall. The lifting platform is equipped with a scissor jack controlled by a straight-line hydraulic motor of the tractor trailer. The superstructure frame is equipped with a support.

The main advantages of the superstructure according to the invention are that superstructures are attached to the mass-produced semi-agricultural trailer which is free of the loading surface in the same way as the loading surface. On the frame of the superstructure, the flat platform of the flat flat shape can be fixed in a modular manner, the sliding platform, whose bottom with the sides is retractable into the slope of the lifting platform, which can be adjusted in height and also has a bottom with side walls extensible to the hillside. For the height adjustment of the lifting platforms, flood hydraulic linear motors are used, which are mounted on a serial trailer, where they are used for tilting the loading platform. The trailer's hydraulic hydraulic equipment does not change and connects to the hydraulic system of telescopic or lifting platforms, and these are connected to the power source, which is the tractor's external hydraulic circuit. Base platforms, telescopic and lifting platforms are mounted on the frame as needed. It is also possible to mount an auxiliary platform on the sides, which may be divided into longer and shorter parts. Another advantage is the possibility of using the superstructure according to the invention in the maintenance work on buildings. This is supported by the supports provided with the base frame of the superstructure. When carrying out these works, use the optional superstructure without a trailer that serves only as a means of transport.

The modular arrangement and order of the platforms is given by the need and purpose of use. The solution allows for high variability.

The invention is illustrated, but not limited to, by the exemplary embodiment of the superstructure shown in the accompanying drawing, in which: Figure 2 is a schematic side view of a conventional agricultural trailer; To the superstructure frame 2, on which the base platform 3 is mounted, an extendable platform 6 provided with a two-sided extending base 41 with sidewalls 42 is attached to the half-surface. In the other half, a lifting platform is provided with a scissor jack 91 controlled by a rectilinear a tractor trailer hydraulic motor 11 and a two-sided extension 92 with sidewalls 93 On the side of the frame 2, the divided sub-platforms 8, 8 are connected. The superstructure frame is further provided with supports 5, 6 on both sides. In the illustrated embodiment, the superstructure is used in the winter cut of medium-high fruit trees planted in rows. A trailer 8 on which the frame 4 of the superstructure is mounted

Claims (1)

PATENT CLAIMS. Superstructure, suitable for a two-axle agricultural tractor trailer, consisting of a superstructure frame on which a base platform is optionally mounted, characterized in that at least one extension platform is connected directly to the superstructure frame (2) or to the base platform (3) and modularly arranged (4), at least one lifting platform (9) and optionally at least one auxiliary platform (7, 8) suspended on the side of the superstructure frame (2), the extendable platform (4) being provided on both sides with an extendable bottom (41) with sides (42) , the lifting platform (9) is provided with a scissor lift (91) controlled by a rectilinear hydraulic motor (11) of the tractor trailer (1) and possibly also on both sides with a retractable bottom (92) with sides (93) and the base frame (2) is equipped on both sides supports (5,6).