JPH05305843A - Trailer unit - Google Patents

Abstract

PURPOSE:To perform a job for carrying in-and-out of a trailer unit so stably by constituting it to install each wheel in a chassis frame, a tilting mount in this chassis frame tiltably in the rearward by means of a fulcrum part, respectively, and to set up this tilting mount shiftably in the rear. CONSTITUTION:When a conveyed work W is carried in, a grounding leg 41 is raised up, and symmetrical two moving mounts 12 are projected in the rear from the inside of a tilting mount 7 by operation of a mobile mechanism 17. The tilting mount 7 is tilted rearward with a fulcrum shaft 9 of a supporting point 10 as the center when the center of gravity in the moving mount 12 is shifted to the rear. The grounding leg 41 and a rear end of the moving mount 12 are grounded, and at the time of this tilting motion, since a fulcrum side tuning shaft 29 of the mobile mechanism 17 is situated on the same axis with the fulcrum shaft 9, there is no hindrance occurring, and the moving mount 12 is projected in the rear of the tilting mount 7, thereby reducing the extent of inclination. With this small inclination, the conveyed work W is taken on the tilting mount 7 via the moving mount 12.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trailer device used for transporting agricultural machines, harvested products, and other heavy objects.

[0002]

2. Description of the Related Art Conventionally, as a trailer device of this type, Japanese Utility Model Publication No. 43-24001 and Japanese Utility Model Publication No. 47-1961 are used.
7 and Japanese Utility Model Publication No. 62-16360 are known.

In this conventional structure, a vehicle underframe is connected to a tractor as a traveling machine body, and a mounting table is provided on the undercarriage so as to be tiltable rearward and downward.

[0004]

However, in the case of these conventional structures, there are inconveniences in terms of stable transport, carry-in, carry-out, etc., for transporting large-scale agricultural work machines, large amounts of harvested products, and other heavy items. is doing.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to solve these problems, and the gist thereof is to connect a vehicle underframe to a tractor, dispose wheels on the undercarriage, A trailer device is characterized in that a tilting mounting table is arranged on a frame so as to be tiltable rearward by a fulcrum portion, and a movable mounting table is arranged on the tilting mounting table so as to be movable rearward.

[0006]

The vehicle underframe having wheels is pulled by the tractor, the tilting platform mounted on the vehicle frame tilts rearward about the fulcrum, and the moving platform mounted on the tilting platform moves backward. Moving.

Further, the above-mentioned mounting movable table is moved by a moving mechanism.

[0008]

1 to 6 show an embodiment of the present invention, in which 1 is a tractor, 2 is an undercarriage, and the undercarriage 2 is frame welded by a square pipe material, and the bottom surface of the undercarriage 2 is shown. A connecting rod 3 made of a square pipe material is attached to a central portion, a front end portion of the connecting rod 3 is connected to a drawbar 4 at a rear portion of the tractor 1 by a pin 5, and wheels 6 are arranged on both left and right rear portions of the chassis frame 2. .

Reference numeral 7 denotes a tilting mounting table, which is frame-welded in this case with U-shaped channel steel, and a mounting plate 8 made of an expanded metal plate is welded to the upper surface thereof to form the undercarriage 2 described above.
A fulcrum portion 10 composed of a fulcrum shaft 9 is provided at a position slightly rearward of the wheel 6 position, and the left and right bottoms of the tilting mount 7 are pivotally attached to the fulcrum shaft 9, and the front of the tilting mount 7 is mounted on the underframe 2 It is configured by providing a contact portion 11 that is in contact with.

Reference numeral 12 denotes a movable mounting table. In this case, two crosspiece members 13 are provided laterally in the center of the tilting mounting table 7, and crosspiece members 13 are provided on both left and right sides.
Two movable mounting bases 12 each having a width accommodated between 3 are frame-welded with U-shaped channel steel, and mounting plates 14 made of expanded metal plates are welded on the upper surface thereof, so that the movable mounting bases on both left and right sides are welded. Rolling rollers 15 capable of interlocking with each other in the groove of the U-shaped channel steel are provided on the left and right sides of the tip end portion of 12, and a mounting roller 16 for mounting the bottom surface of the movable mounting table 12 on the rear part of the tilting mounting table 7 A total of four units are provided, and two movable mounting bases 12 can be housed in the tilting mounting base 7 and can be pulled out and moved rearward.

Reference numeral 17 denotes a moving mechanism. In this case, a mounting plate 18 is mounted on the connecting rod 3 of the undercarriage 2 and is mounted on the mounting plate 1
8, a rotary shaft 19 is laterally installed by a bearing 20, a friction wheel 21 is fixed to the rotary shaft 19 with a space, and a bearing base 22 is elastically movable in the left-right direction on a mounting plate 18 by a spring member 23. The drive shaft 24 is supported on the bearing stand 22 and is supported by the drive shaft 24.
The pressure contact ring 24a is fixed to the
The drive shaft 24 and the drive shaft 24 are connected by a joint 26, a handle rod 27 is projectingly provided on the bearing base 22, a fulcrum-side turning shaft 28 is provided on the tilting mount 7 coaxially with the fulcrum shaft 9, and A tip end side rotation shaft 29 is laterally provided on the tip end portion of the tilting mount 7, and a sprocket 30 is fixed to the rotation shaft 19 so that the fulcrum side rotation shaft 2
8 and fix the sprocket 31 to this sprocket 30
・ Hanging the chain 32 between 31 and fixing the other sprocket 33 to the fulcrum side turning shaft 28, fixing the sprocket 34 to the tip end side turning shaft 29, and hanging the chain 35 between the sprocket 33 and 34. , Other sprockets 36 are fixed to both ends of the tip end side rotation shaft 29, support shafts 37 are rotatably provided on both sides of the rear of the tilting mount 7, and the sprockets 38 are fixed to the respective support shafts 37. Chain 39 is wound between 36 and sprocket 38, and each chain 3
The movable mounting bases 12 on the left and right sides are connected and fixed by a fastening portion 40 to one circulation side of 9.

However, when the drive shaft 24 is rotated by the power take-off shaft 25 of the tractor 1, the bearing base 22 is moved to one side by the handle rod 27, and the press contact wheel 24a is brought into press contact with one friction wheel 21, the rotary shaft. 19 rotates, and this rotating shaft 1
By the rotation of 9, the fulcrum-side rotation shaft 28 via the chain 32
Rotates, and this rotation causes the tip end side rotation shaft 29 to rotate via the chain 35, and this rotation causes the chain 39 to circulate and rotate. As the chain 39 circulates, the movable mounting table 12 moves backward. It moves and protrudes from the tilt moving base 7, and the bearing rod 27 causes the bearing base 2 to move.
2 is moved to the other side, and the press contact wheel 24a is moved to the other friction wheel 21
When it is brought into pressure contact with the rotary shaft 19, the rotary shaft 19 rotates in the reverse direction, and the rotation causes the chain 39 to circulate in the reverse direction, so that the movable mounting base 12 moves forward and is housed in the tilt movable base 7.

Reference numeral 41 denotes a grounding leg, which is provided at the rear portion of the tilting mount 7 and is configured to be upright and inclinable.

Since this embodiment has the above-mentioned structure, when carrying in the article W, as shown in FIG. 2, the grounding leg 41 is erected and the left and right moving pedestals 12 are moved by the above operation of the moving mechanism 17. When the carriage is projected rearward from the inside of the tilting mount 7, the tilting mount 7 is tilted rearward about the fulcrum shaft 9 of the fulcrum 10 because the center of gravity of the moving mount 12 is moved rearward. , Grounding leg 41 and movable mounting table 1
The rear end of 2 is grounded, and the fulcrum-side rotation shaft 29 of the moving mechanism 17 is located coaxially with the fulcrum shaft 9 at the time of this tilting, so that it does not cause any hindrance and is located behind the tilting platform 7. The inclination angle can be made smaller by the movable mounting table 12 protruding, and the transported article W is loaded onto the tilting mounting table 7 via the moving mounting table 12 at this small inclination angle. At the time when the center of gravity of the transported article W moved forward from the fulcrum shaft 9, the tilting platform 7 tilted forward,
The abutting portion 11 at the front part of the tilting platform 7 abuts on the undercarriage frame 2, the tilting platform 7 is held in a horizontal state, and the transported article W is carried onto the tilting platform 7. In this state, the movable mounting table 12 is moved forward by the above operation of the moving mechanism 7, and the movable mounting table 12 is housed in the tilted movable table 7 as shown in FIG.

Then, the grounding leg 41 is laid down, and as shown in FIG. 1, the undercarriage 2 having the wheels 6 is towed by the tractor 1 to transport the transported article W to a predetermined location.

Further, when carrying out the transported article W, first, as shown in FIG.
As described above, the grounding leg 41 is erected, and the left and right two movable mounting tables 12 are tilted by the above-described operation of the moving mechanism 17.
The carrier W is projected rearward from the inside to carry out the transported article W from the tilting platform 7 via the moving platform 12. During the carry-out, the center of gravity of the transported article W of the tilting platform 7 moves backward. Thus, the fulcrum shaft 10 of the fulcrum portion 10 is tilted rearward, and the grounding leg 41 and the movable mounting table 1 are tilted.
The rear end portion of 2 is grounded, and the movable mounting table 12 is projected to the rear of the tilting mounting table 7 so that it can be carried out at a small inclination angle. When the carrying-out is completed, the moving mechanism 7 is moved by the above operation. The mounting table 12 is moved forward, and the two movable mounting tables 12 are housed in the tilt moving table 7 as shown in FIG.

However, when the moving mounting table 12 is moved backward by the moving mechanism 17, the tilting mounting table 7 is tilted downward and rearward so that a large agricultural work machine or a large amount of harvested goods can be carried in at a small inclination angle, and the movable mounting table 7 can also be moved. The mounting table 12 can be moved forward and housed in the tilting mounting table 7, and the overall length can be shortened, so that stable loading and unloading operations can be performed.

Further, since the tilting mounting table 7 tilts due to the rearward movement of the moving mounting table 12, tilting is facilitated, and a mechanism for tilting the tilting mounting table 7 is not required, and simplification can be achieved.

The present invention is not limited to the above embodiment, but the moving mechanism 17 can be moved by an electric motor, for example, instead of the chain mechanism as described above. The table 12 can be configured so that it can be artificially taken in and out, and is designed by appropriately changing it.

[0020]

As described above, according to the present invention, when the movable mounting table is moved backward, the tilting mounting table tilts rearward and downward about the fulcrum, and carries in a large agricultural work machine or a large amount of harvested products at a small inclination angle. In addition, the movable mounting table can be moved forward and stored in the tilting mounting table, and the entire length can be shortened. Therefore, stable loading and unloading operations can be performed.

As described above, the intended purpose can be sufficiently achieved.

[Brief description of drawings]

FIG. 1 is an overall side view of an embodiment of the present invention.

FIG. 2 is a side view of the embodiment of the present invention shown in FIG.

FIG. 3 is a plan view of the embodiment of the present invention shown in FIG.

FIG. 4 is a side view of the embodiment of the present invention shown in FIG.

5 is a partial side sectional view of the embodiment of the present invention shown in FIG.

FIG. 6 is a partial side sectional view of the embodiment of the present invention shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 tractor 2 vehicle underframe 6 wheels 7 tilting mounting table 10 fulcrum section 12 moving mounting table 17 moving mechanism

Claims (2)

[Claims] 1. A vehicle underframe is connected to a tractor, wheels are provided on the undercarriage, a tilting platform is provided on the underframe so as to be tiltable rearward by a fulcrum, and a movable platform is mounted on the tilting platform. A trailer device characterized in that it is arranged so as to be movable rearward. 2. The trailer apparatus according to claim 1, further comprising a moving mechanism for moving the movable mounting table.