JP3190993B2 - Trailer equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, this type of trailer has been disclosed in Japanese Utility Model Publication No. 43-24001 and Japanese Utility Model Publication No. 47-1961.
No. 7 and Japanese Utility Model Publication No. 62-16360 are known.

[0003] In this conventional structure, a vehicle frame is connected to a tractor as a traveling body, and a mounting table is provided on the vehicle frame so as to be tiltable rearward and downward.

[0004]

However, in the case of these conventional structures, there are disadvantages in terms of stable transportation, loading, unloading, etc., for transporting large agricultural machines, large amounts of crops, and other heavy items. are doing.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to solve these inconveniences. In the present invention, the invention described in claim 1 connects a vehicle frame to a tractor, and , A tiltable mounting table is disposed on the underframe so as to be tiltable rearward from a fulcrum shaft , and a movable mounting table is mounted on the tiltable mounting table so as to be movable rearward by a moving mechanism. Above
Backward shift of the center of gravity of the movable mounting table following the backward movement of the mobile mounting table
The tilting mounting table is tilted backward by the fulcrum shaft
And the tilting mounting as the moving mechanism.
A fulcrum rotation axis that rotates forward and backward on the table is installed horizontally on the same axis as the fulcrum axis
Then, when the tip-side rotation shaft is laterally provided at the tip of the tilt mounting table,
In both cases, a support shaft is rotatably provided at the rear of the tilting mounting table.
A transmission chain is interposed between the point side rotation axis and the tip side rotation axis.
For moving between the tip side rotation shaft and the support shaft.
With the chain interposed, move and place the part of the moving chain
The trailer device is characterized by being fixed to a table.
You. Also, in the invention according to claim 2, the fulcrum pivot shaft is rotated forward and reverse.
A rotatable drive chain is provided.

[0006]

The undercarriage frame having wheels is towed by the tractor, and the tilting mounting table disposed on the undercarriage frame tilts rearward about the fulcrum axis , and the movable mounting table disposed on the tilting mounting table moves rearward. Moving.

[0007] Further, the placing and moving table is moved by a moving mechanism.

[0008]

1 to 6 show an embodiment of the present invention, wherein 1 is a tractor, 2 is an undercarriage frame, and the undercarriage frame 2 is formed by frame welding using a square pipe material. A connecting rod 3 of a square pipe material is attached to a central portion, a front end of the connecting rod 3 is connected to a drawbar 4 at a rear part of the tractor 1 by a pin 5, and wheels 6 are provided on both left and right sides of a rear part of the underframe 2. .

Reference numeral 7 denotes a tilting mounting table. In this case, a mounting plate 8 made of an expanded metal plate is welded to the upper surface thereof by frame welding with a U-shaped channel steel material.
The supporting point shaft 9 is provided slightly in the rear position than the wheel 6 positions of the left and right side bottom of the pivot shaft 9 tilting the stage 7 pivotally mounted to, in contact on the chassis frame 2 in front of the tilting table 7 The contact portion 11 is provided.

Reference numeral 12 denotes a movable mounting table. In this case, two crosspieces 13 are horizontally provided at the center of the tilting mounting table 7 and the crosspieces 13 are provided on both left and right sides, respectively.
The two movable mounting tables 12 having a width to be accommodated between the three are formed by frame welding with U-shaped channel steel materials, and the mounting plates 14 made of an expanded metal plate are welded to the upper surface thereof. Rolling rollers 15 capable of interlocking the inside of the U-shaped channel steel material are provided on the left and right sides of the distal end of the movable mounting table 12. The four movable mounting tables 12 are arranged so that the two movable mounting tables 12 can be stored in the tilt mounting table 7 and can be pulled out and moved backward.

Reference numeral 17 denotes a moving mechanism. In this case, a mounting plate 18 is mounted on the connecting rod 3 of the chassis frame 2, and
8, a rotating shaft 19 is provided laterally by a bearing 20, a friction wheel 21 is fixed to the rotating shaft 19 at an interval, and a bearing base 22 is elastically movable in the left and right directions by a spring material 23 on the mounting plate 18. The drive shaft 24 is supported on the bearing base 22,
The pressure contact wheel 24a is fixed to the
And a drive shaft 24 are connected by a joint 26, a handle bar 27 is protruded from the bearing base 22, and a fulcrum-side rotation shaft 28 is provided horizontally on the tilt mounting base 7 on the same axis as the fulcrum shaft 9, and A tip-side rotation shaft 29 is provided horizontally at the tip of the tilting mounting table 7, a sprocket 30 is fixed to the rotation shaft 19, and the fulcrum-side rotation shaft 2 is fixed.
8, a sprocket 31 is fixed to the sprocket 30.
A drive chain 32 is hung between 31 and another sprocket 33 is fixed to the fulcrum-side rotation shaft 28, and a sprocket 34 is fixed to the tip-end-side rotation shaft 29.
A transmission chain 35 is hung between 34, other sprockets 36 are fixed to both ends of the tip-side rotation shaft 29, and support shafts 37 are rotatably provided on both sides of the rear portion of the tilting mounting table 7 to support each support. The sprocket 38 is fixed to the shaft 37, and the sprocket 3
The moving chains 39 are hung between the sprockets 6 and the sprockets 38, and the left and right movable mounting tables 12 are connected and fixed to one circulation side of each of the moving chains 39 by fastening portions 40.

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 bar 27, and the press contact wheel 24a is pressed against the one friction wheel 21 to rotate. 19 rotates, and this rotating shaft 1
Fulcrum pivot shaft 28 through the driving chain 32 by the rotation of 9 rotates, the tip-side rotary shaft 29 through the conducting and chain 35 is rotated by this rotation, shifting by the rotation
Kinematic chains 39 will be circulated rotated, table 12 moves by circulating travel of the transfer switch <br/> En 39 will be protruding from the inclined moving base 7 to move rearward, also handle rod 27 When the bearing base 22 is moved to the other side, and the pressure contact wheel 24a is pressed against the other friction wheel 21, the rotation shaft 19 rotates in the reverse direction, and the rotation causes the moving chain 39 to circulate in the reverse direction. The reference numeral 12 moves forward and is stored in the inclined moving table 7.

Reference numeral 41 denotes a grounding leg, which is provided at the rear of the tilting mounting table 7 and is configured to be able to stand upright.

Since the embodiment has the above-described structure, when carrying in the goods W, the grounding leg 41 is erected as shown in FIG. When is projected moves backward from the tilting table within 7, tilting table 7 by the center of gravity of the moving table 12 is moved rearward, it will be tilted rearward around the supporting point axis 9, the ground leg 41 and the rear end of the movable mounting table 12 are in contact with the ground.
Is located on the same axis as the fulcrum shaft 9, so that no obstruction occurs, and the tilt angle can be reduced by projecting the movable mounting table 12 behind the tilt mounting table 7.
At this small inclination angle, the load W is loaded onto the tilting mounting table 7 via the movable mounting table 12, and the load W is tilted from the time when the center of gravity of the load W moves forward from the fulcrum shaft 9 during the loading. The mounting table 7 tilts forward, and the contact portion 11 at the front of the tilt mounting table 7 abuts on the underframe 2, and the tilt mounting table 7
Is held in a horizontal state, and the conveyed object W is carried into the tilting mounting table 7. In this state, the moving mounting table 12 is moved forward by the above operation of the moving mechanism 7, and as shown in FIG. The movable mounting table 12 is stored in the inclined moving table 7.

Then, the grounding leg 41 is lowered, and as shown in FIG. 1, the undercarriage 2 having the wheels 6 is towed by the tractor 1, and the transported object W is transported and moved to a predetermined place.

When unloading the goods W, first, as shown in FIG.
As described above, the landing leg 41 is erected, and the two left and right movable mounting tables 12 are tilted by the above operation of the moving mechanism 17.
The object W is projected backward from the inside, and the transported object W is unloaded from the tilting mounting table 7 via the movable mounting table 12. During the unloading, the tilting mounting table 7 moves the center of gravity of the transported object W backward. by will be tilted rearward, the rear end portion of the ground leg 41 and the mobile table 12 is grounded, table 12 moves rearward tilting table 7 protrudes around the supporting point axis 9 by The movable mounting table 12 is moved forward by the above operation of the moving mechanism 7 in a state where the unloading is completed, and the two movable mounting tables 12 are moved as shown in FIG. 7 will be stored.

When the movable mounting table 12 is moved backward by the moving mechanism 17, the tilting mounting table 7 is tilted backward and downward, so that a large agricultural work machine or a large amount of harvest can be carried in at a small inclination angle. The mounting table 12 can be moved forward to be stored in the tilting mounting table 7, and the entire length can be shortened, so that the loading and unloading operations can be performed stably.

Further, since the tilting mounting table 7 is tilted by the rearward movement of the movable mounting table 12, the tilting is facilitated, and a mechanism for tilting the tilting mounting table 7 is not required, so that simplification can be achieved.

The present invention is not limited to the above embodiment, and the moving mechanism 17 can be moved by, for example, an electric motor instead of the chain mechanism as described above. The table 12 can also be configured to be able to be taken in and out artificially, and is designed with appropriate changes.

[0020]

As described above, according to the first aspect of the present invention, an undercarriage is connected to a tractor, wheels are disposed on the undercarriage, and a tilting mounting table is supported on the undercarriage. rear tiltably arranged by the shaft, moving the mounting table moved to the inclined Dono table
It is arranged so that it can move backward by a mechanism,
Movement due to backward movement of the table
The tilting mounting table can be tilted backward by the fulcrum shaft.
Provided, and as the moving mechanism,
A fulcrum rotation axis that rotates in the opposite direction is provided horizontally on the same axis as the fulcrum axis, and
At the tip of the tilting mounting table, the tip side rotation shaft is
A support shaft is rotatably provided at the rear part of the dynamic mounting table,
A transmission chain is interposed between the driving shaft and the tip-side rotation shaft.
And a moving chain between the tip-side rotation shaft and the support shaft.
Intervening, and the part of the moving chain is fixed to the moving mounting table.
Since it is worn, whether it is a conduction chain or a movement chain
The tilting mounting table is allowed to tilt by the chain mechanism consisting of
The mobile mounting table can be moved , and when the mobile mounting table is moved backward, the tilting mounting table tilts rearward and downward about the fulcrum axis , allowing large agricultural work machines and a large amount of harvest to be carried in at a small tilt angle. In addition, the movable mounting table can be moved forward to be accommodated in the tilting mounting table, and the overall length can be shortened, so that loading and unloading operations can be performed stably. Further, in the invention of claim 2, above
A drive chain capable of rotating the fulcrum rotation axis forward and backward is provided.
Therefore, the drive system of the moving mechanism is
Simplify and reduce manufacturing costs
Can be .

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

[Brief description of the 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. 1;

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

FIG. 5 is a partial side sectional view of the embodiment of the present invention shown in FIG. 1;

FIG. 6 is a partial side sectional view of the embodiment of the present invention shown in FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Tractor 2 Undercarriage frame 6 Wheels 7 Tilt mounting table 9 Support shaft 12 Moving mounting table 17 Moving mechanism 32 Drive chain 35 Transmission chain 39 Moving chain

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-220034 (JP, A) JP-A-2-262435 (JP, A) JP-A-63-21158 (JP, U) JP-A-4-214 31031 (JP, U) JP-A 1-108840 (JP, U) JP-A 57-67757 (JP, U) JP-A 52-99209 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) B60P 1/32 B60P 1/43 B60P 3/07

Claims (2)

(57) [Claims] 1. An undercarriage frame is connected to a tractor, wheels are disposed on the undercarriage frame, and a tilt mounting table is disposed on the underframe so as to be tiltable rearward with a fulcrum shaft, and a movable mounting table is mounted on the tilt mounting table. Move
It is arranged so that it can move backward by a mechanism,
Movement due to backward movement of the table
The tilting mounting table can be tilted backward by the fulcrum shaft.
Provided, and as the moving mechanism,
A fulcrum rotation axis that rotates in the opposite direction is provided horizontally on the same axis as the fulcrum axis, and
At the tip of the tilting mounting table, the tip side rotation shaft is
A support shaft is rotatably provided at the rear part of the dynamic mounting table,
A transmission chain is interposed between the driving shaft and the tip-side rotation shaft.
And a moving chain between the tip-side rotation shaft and the support shaft.
Intervening, and the part of the moving chain is fixed to the moving mounting table.
A trailer device characterized by being worn. 2. A drive for rotating said fulcrum pivot shaft forward and backward.
The trailer device according to claim 1, wherein a chain is provided.