ES1143434U - LAUNCH FOR THE TRANSPORTATION OF AXLE OR CENTRAL AXLE TRAILERS - Google Patents

Abstract

1. Lance for the transport of trailers with one axle or central axles, which, being adapted to be used for tractor vehicles whose dragging means can be arranged at very different heights, is characterized in that it is constituted from two frames, a rear frame equipped with fixing means to the chassis of the trailer, and an anterior frame carrying the eyelet for fixing the lance to the towing vehicle, racks that are related to each other by a pair of "V" arms, articulated mounted with respect to said frames.

Description

OBJECT OF THE INVENTION

The present invention relates to a lance for the transport of

single-axle trailers or central axles, of the type of so-called "V" lances, in which the lance is fixed to the trailer to be transported at two points, being fixed to the Iractor vehicle at a single point.

The object of the invention is to provide a bi-articulated lance that allows the trailer to be coupled to vehicles of tractors of different heights, the trailer remaining parallel to the ground and avoiding wear on the hitching means, due to this

provision of parallelism

of torque to which the spear is subjected.

The invention is applicable to both existing trailers and 5 newly manufactured trailers.

BACKGROUND OF THE INVENTION

10 As is known, most single axle trailers or central axles

they present a lance to be coupled to the fixing means of the

tractor vehicle in question, so that it launches regardless of the number of attachment points it has to the trailer chassis,

It has a rigid configuration, so that, although it can be adapted to 15 tractor vehicles of different heights, this means that the trailer

must in some cases adopt an inclined provision with respect to the

horizontal, which can be very negative in some cases for the load contained in said trailer.

20 This inclined arrangement of the lance with respect to the towing vehicle

it also assumes that the fixing means, specifically its ring

of fixation of the tractor vehicle, which translates into premature wear of these elements due to friction generated between

they.

5 The reality is that depending on the category and consequent height of the towing vehicle, certain trailers are not allowed to drive

coupled to these types of vehicles, as they would circulate with an inclination

that would jeopardize the stability of the load and make it difficult to maneuver the braking of the trailer.

DESCRIPTION OF THE INVENTION

15 The lance for transporting trailers that has been recommended has been

conceived to solve the problem previously exposed making these can adapt perfectly to all types of vehicles

tractors of very different heights.

For this, the lance of the invention is constituted from two

racks, a rear frame, intended to be fixed to the chassis of the

trailer, which will adopt at all times a horizontal arrangement, which are related to each other by means of articulated "V" arms.

More specifically, four joints are defined, one at each

end of the arms in "V", so that they can rotate freely and set at the required height.

10 For this, each joint consists of a rotating point and a point

of joint fixation consisting of a fixing screw that plays

over a torn hole whose length limits the degree of dejection

maximum and minimum for each arm.

The device has the possibility to adapt to any width of the chassis of any type of trailer, varying the length of the strut that participates in its rear frame, and screwing the fixing plates of said frame to the trailer chassis.

20 Two-point trailer chassis attachment provides a

much greater resistance to torque as well as minimizes

all terrain or military use, as opposed to the traditional fixed bar of

hitch of this type of trailers.

5 Consequently, from this structuring a lance is obtained with the following advantages:

• Allows adaptation to any vehicle height

tractor, the trailer remaining parallel to the ground.

• It allows to keep the hook ring parallel to the ground, aligned with the hook of the towing vehicle, significantly reducing the wear of that and

15 therefore increasing its useful life.

• It considerably increases the resistance to torsional stress especially in situations of

all terrain to be manufactured in the form of "V" and have

20 2 fixing points instead of a single point of

Standard bars of this type of trailers.

DESCRIPTION OF THE DRAWINGS

To complement the description that is going to be carried out below and

in order to help a better understanding of the characteristics of the

In accordance with a preferred example of a practical embodiment thereof, a set 10 of drawings is attached as an integral part of said description, where the following is shown as an illustrative and non-limiting nature:

Figure 1 shows a representation corresponding to a perspective view of a lance for transporting trailers made in accordance with the object of the present invention in the "high" position.

Figure 2.- Shows a profile view of the assembly of the previous figure.

Figure 3.- Shows an enlarged detail of the means of regulation of

20 the inclination between the arms and the frames of the lance.

Figure 5.- Shows a profile view of the assembly of Figure 1 but in

this case in "low" position.

Figure 6.- Shows an elevation view of the assembly of the previous figure.

Figure 7.- Shows, finally, a profile view of the whole of the

previous figure.

PREFERRED EMBODIMENT OF THE INVENTION

As can be seen in the aforementioned figures, in the lance for transport

Trailers of the invention define a rear frame (1), with a "U" configuration, on whose sides plates (2) are provided with holes (3) for fixing by screwing the lance to the trailer, and a front frame (4), carrier of the ring (5) for fixing the trailer.

so that these are articulated with respect to the racks by

articulation turn screws (7), which relate both elements, defining a torn hole (8) facing both elements

5 a through hole of the other piece, in which a fixing screw plays

(9) which is tightly squeezed once the racks are arranged at the required height, allowing to maintain these positions stably.

Claims (1)

1 '.- Lance for transporting trailers with one axle or central axles, which being destined to adapt to tractor vehicles whose means of dragging can be arranged at very different heights, it is characterized because it is constituted from two frames, a rear frame provided with fixing means to the chassis of the trailer, and a previous frame carrying the eyelet for fixing the lance to the tractor vehicle, frames that are relate to each other through a pair of "V" arms, mounted 10 articulately with respect to said racks. 2 '.- Lance for transporting trailers with one axle or central axles, according to claim 1, characterized in that the joints defined between the arms of the lance and the anterior and posterior frame, 15 include stable fixing means once the angular position is chosen among them. 3a._ Lance for the transport of trailers of a central axle or axles, according to claim 2, characterized in that the stable fixing means 20 between arms and frames are materialized in a torn hole facing a through hole in the frame and arm, in the fixed relative angular position between arm and frame.