Two-wheeled vehicle carrier support on an agricultural tractor

Abstract

Title: Two-Wheeled Vehicle Carrier Support on an Agricultural Tractor The invention relates to a load carrier support (1) for an agricultural tractor, characterized in that it comprises: - a frame (2) having attachment points (21) for the front or rear lift arms of an agricultural tractor; - a platform (3); - a rail (4) integrated at least partially into a thickness of the platform (3), the rail (4) extending between the two lateral edges (31) of the platform (3), and defining a receiving groove (40) for the wheels of a two-wheeled vehicle. Figure for the abstract: Fig. 1

Description

Title of the invention: Two-wheeled vehicle carrier support on an agricultural tractor technical field

[0001] The field of the invention is that of the design and manufacture of agricultural vehicle equipment.

[0002] The invention relates more particularly to a support for carrying a two-wheeled vehicle on an agricultural tractor. State of the art

[0003] In the agricultural sector, farmers' relatives are often called upon to transport them between different locations, in order to avoid having to use a farm tractor for daily travel. Indeed, the use of a tractor has an economic and environmental cost, and it is desirable to limit it. Technical problem

[0004] The invention is specifically designed to meet this need.

[0005] More specifically, the invention aims to provide a solution to facilitate the daily travel of agricultural tractor users. Summary of the invention

[0006] This objective, as well as others that will appear subsequently, is achieved thanks to the invention which relates to a load-carrying support for an agricultural tractor, characterized in that it comprises: - a frame having attachment points to front lifting arms or rear lifting arms of an agricultural tractor, the frame extending vertically between a lower end and an upper end; - a floor extending in depth from the lower end of the frame, transversely to the frame and opposite a rear face of the frame intended to be oriented towards an agricultural tractor to which the support is attached, the floor extending lengthwise between two lateral edges; - a rail integrated at least partially into a thickness of the floor, the rail extending between the two lateral edges of the floor, and defining a groove for receiving the wheels of a two-wheeled vehicle; - means of fixing to the frame of a two-wheeled vehicle whose wheels are inserted into the receiving groove of the rail, in which the floor forms a cradle in the imprint of the rail, the cradle being devoid of any protruding re-entrant angle on the side of the cradle oriented towards the frame.

[0007] The support according to the invention allows a user of an agricultural tractor to carry a two-wheeled vehicle, such as a bicycle or a motorcycle, and then use it by leaving his tractor at his place of activity in order to ensure a "daily" trip, for example to go eat.

[0008] By being coupled to the lifting arms, the support can be lowered to load or unload the two-wheeled vehicle. Furthermore, thanks to the integration of the rail at least partially into the floor, it is easier to load the two-wheeled vehicle onto the support, as the rail is located at a lower height than if it were mounted directly above the floor.

[0009] Finally, since the cradle has no protruding re-entrant angle on the side facing the frame, the stresses exerted on the floor due to the floor's mass and its load are harmoniously distributed, as they are located at a distance from the frame. The floor thus exhibits increased strength and durability.

[0010] According to an advantageous feature, the support includes a removable mounted agricultural mass below the floor.

[0011] This allows the front of an agricultural tractor equipped with the support according to the invention to be ballasted, thus avoiding the need to remove the support to install a separate weight. Such an agricultural weight is typically used when a tractor carries or pulls a significant load on its rear.

[0012] The design of the cradle allows the use of a large agricultural mass due to the harmonious distribution of constraints.

[0013] According to a preferred embodiment, the support comprises at least two arms made of a material having: - a first part forming part of the framework; - a second part forming part of the floor; in which the second part of each arm has, on an upper edge of said second part of the arm, a notch participating in forming the cradle, the notch having a bottom, a front rim located opposite the frame with respect to the bottom, and a rear rim located opposite the front rim with respect to the bottom, the junction between the rear rim and the bottom being rounded.

[0014] This design optimizes the harmonious distribution of stresses and the load transfer by the frame. Brief description of the drawings

[0015] Other features and advantages of the invention will become more apparent upon reading the following description of various preferred embodiments of the invention, given by way of illustrative and non-limiting examples, and the accompanying drawings, among which: • [Fig.1] [Fig.1] is a schematic representation according to a front perspective view of a support according to the invention; • [Fig.2] [Fig.2] is a schematic representation from a viewpoint rear perspective of the support according to the invention; • [Fig.3] [Fig.3] is a schematic perspective representation of a detail of the support according to the invention. Detailed description

[0016] With reference to figures 1 and 2, a load-carrying support 1 for an agricultural tractor is shown.

[0017] This carrying support 1 is intended to be coupled to an agricultural tractor.

[0018] The support 1 comprises a frame 2 and a floor 3.

[0019] The support 1 is formed by a plurality of welded mechanical elements. The frame 2 is thus integral with floor 3, and fixed in relation to the latter.

[0020] The frame 2 has attachment points 21 for front or rear lift arms of an agricultural tractor. The lift arms allow a tractor to lower or raise equipment attached to them.

[0021] These attachment points 21 are in this case formed by two elements each having a hole sharing the same central axis, a lifting arm classically having a holed end inserted between the two elements of the attachment point 21 so that the hole in the lifting arm is centered on the holes in the elements of the attachment point, a pin then being inserted into the aligned holes in order to establish a mechanical coupling.

[0022] The frame 2 extends vertically between a lower end 201 and an upper end 202, and laterally between two lateral edges 203.

[0023] The floor 3 extends in depth from the lower end 201 of the frame 2, transversely to the frame 2 and opposite a rear face of the frame 2 intended to be oriented towards an agricultural tractor on which the support 1 is attached. More precisely, the floor 3 extends perpendicularly to the frame 2, from the lower end 201 of the frame 2, towards a front edge 32 of the floor 3.

[0024] The floor 3 also extends lengthwise between two lateral edges 31.

[0025] With reference to Figures 1 and 2, the support 1 also comprises at least two arms 5 made of material, each arm 5 having: - a first part 51 forming part of frame 2; - a second part 52 forming part of floor 3.

[0026] According to the present embodiment, the support 1 comprises four arms 5.

[0027] Each arm is in this case formed from a sheet of steel cut to the shape of the arm. Each arm has a flat shape extending in a plane orthogonal to a longitudinal extension axis of the floor 3 between its two lateral edges 32. In this way, when a weight is positioned on the front edge 32 of the floor 3, the transfer of stresses by the frame 2 is optimized.

[0028] Support 1 also includes: - a first longitudinal member 61 forming part of the frame 2 and the floor 3, and delimiting the lower end 201 of the frame 2; - a second longitudinal member 62 forming part of the floor 3 and delimiting the front edge 32 of the floor 3; - a mast formed by two plates 63, extending from the first longitudinal member 61, parallel to the first parts 51 of the arms 5, and forming part of the frame 2; - two trapezoidal sub-assemblies 64, forming part of the floor 3, and extending and tapering from the first parts 51 of the arms 5, to the ends of the stringers; - two cross members 65 extending diagonally in relation to the mast, coupling the upper ends of the first parts 51 of the arms 5 to the two plates 63 forming the mast.

[0029] The second parts 52 of the arms 5 are coupled and extend between the first longeron 61 and the second longeron 62.

[0030] Support 1 further includes a rail 4.

[0031] This rail 4 is integrated at least partially into a thickness of the floor 3, and in this case, the rail 4 is fully integrated into the thickness of the floor 3. The rail 4 extends between the two lateral edges 31 of the floor 3.

[0032] Rail 4 delimits a receiving groove 40 for wheels of a two-wheeled vehicle.

[0033] The rail 4 has a trapezoidal crenellated shape with a central flat 41, and two lateral panels 42 extending from the ends of the central plate 41, moving away from each other.

[0034] To receive the rail 4, the floor 3 forms a cradle with the imprint of the rail 4.

[0035] Indeed, as shown in [Fig.3], the second part 52 of each arm 5 has, on an upper slice 521 of said second part 52 of the arm 5, a notch 522 which helps to form the cradle.

[0036] The notch 522 has a bottom 5221, a front rim 5222 located opposite the frame 2 with respect to the bottom 5221, and a rear rim 5223 located opposite the front rim 5222 with respect to the bottom 5221.

[0037] The cradle is free of any protruding re-entrant angle on the side of the cradle facing the frame 2. Indeed, the junction 5224 between the rear edge 5223 and the base 5221 is rounded. The junction 5224 does not take the form of the angle formed between the central plate 41 and the side panel 42 located closest to the frame 2. This harmonizes the distribution of stresses and avoids creating a zone of structural weakness.

[0038] The support 1 also includes means for fixing to the frame 2 of a two-wheeled vehicle whose wheels are inserted into the receiving groove 40 of the rail 4.

[0039] With reference to [Fig. 1], these fastening means take the form of: - of a wheel block having a second rail 71 extending perpendicularly to rail 4 and of a rocker 72 which rocks when a wheel passes over it to hold it in the second rail 71; - a T-shaped support 73 coupled in a removable and adjustable manner to frame 2, and intended to form a support for the frame of a two-wheeled vehicle brought onto rail 4; - straps (not shown) intended to hold the frame against the T-support 73 and to hold the vehicle's wheels in rail 4.

[0040] Although not shown, the support 1 includes a removable mounted agricultural mass below the floor 3. Such an agricultural mass has, for example, hooks designed to hook the second longitudinal member 62 and to present a clamping point near the lower end 201 of the frame 2 in order to allow clamping of the agricultural mass to a clamping point 8 presented by the frame 2.

Claims

Demands

1. Load-carrying support (1) for an agricultural tractor, characterized in that it comprises: - a frame (2) having attachment points (21) to front lift arms or rear lift arms of an agricultural tractor, the frame (2) extending vertically between a lower end (201) and an upper end (202); - a floor (3) extending horizontally from the lower end (201) of the frame (2), transversely to the frame (2) and opposite a rear face (22) of the frame (2) intended to be oriented towards an agricultural tractor to which the support (1) is attached, the floor (3) extending horizontally between two lateral edges (31); - a rail (4) integrated at least partially into a thickness of the floor (3), the rail (4) extending between the two lateral edges (31) of the floor (3), and defining a receiving groove (40) for the wheels of a two-wheeled vehicle;- means for fixing to the frame (2) of a two-wheeled vehicle whose wheels are inserted into the receiving groove (40) of the rail (4), in which the floor (3) forms a cradle with the imprint of the rail (4), the cradle being devoid of any salient re-entrant angle on the side of the cradle oriented towards the frame (2).;

2. Support (1) according to the preceding claim, characterized in that it comprises a removable mounted agricultural mass below the floor (3).

3. Support (1) according to any one of the preceding claims, characterized in that it comprises at least two arms (5) made of material, each arm (5) having: - a first part (51) forming part of the frame (2); - a second part (52) forming part of the floor (2); in which the second part (52) of each arm (5) has, on an upper slice (521) of said second part (52) of the arm (5), a notch (522) participating in forming the cradle, the notch (522) having a bottom (5221), a front rim (5222) located opposite the frame (2) with respect to the bottom (5221), and a rear rim (5223) located opposite the front rim (5222) with respect to the bottom (5221), the junction between the rear rim (5223) and the bottom (5221) being rounded.

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