JPH077310U - Lift dump attachment for tractor - Google Patents

Abstract

(57) [Summary] [Purpose] Using a tractor suitable for running on uneven terrain, by connecting an attachment that has both a lift function for raising and lowering the loading platform and a dump function for tilting the loading platform, (EN) A lift dump attachment for a tractor that can be easily transported and transshipped. [Structure] A tractor T has a base frame 1 connected to one side in an imaginary state at a rear portion of the tractor T, and a loading platform 4 is provided on the base frame via a lifting device 3, and the loading platform is a driving means of the lifting device. Dump device 6 sharing 5
It is tiltably mounted on the base frame.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lift dump attachment for a tractor used for agricultural work and the like.

[0002]

[Prior art]

 Conventionally, various attachments for tractors have been proposed, but they are used for transport vehicles and are equipped with a loading platform and have both a lift function for raising and lowering the loading platform and a dumping function for tilting the loading platform. I can't find anything with a function.

[0003]

[Problems to be solved by the device]

 By the way, the vegetables harvested in the field are collected and transported to the vicinity of the ridge, where they are loaded into a transportation truck. In this way, it takes a lot of time and labor to carry the harvested vegetables through the uneven fields to the vicinity of the ridges, and to transfer them to the transportation truck. The transportation and transshipment of vegetables and vegetables requires a great deal of time and effort.

The present invention has been made in view of the above-mentioned circumstances, and uses a tractor suitable for traveling on uneven terrain, and has both a lift function for raising and lowering the loading platform and a dumping function for tilting the loading platform. The challenge is to provide a lift dump attachment for tractors that facilitates transportation and transshipment of harvested vegetables by connecting the attachments.

[0005]

[Means for Solving the Problems]

 In order to solve the above problems, the lift dump attachment for a tractor of the present invention has a base frame connected to one side of the tractor in an imaginary state at the rear part of the tractor, and a load platform is mounted on the base frame via a lift device. Is provided, and the loading platform is tiltably provided by a dump device that shares the drive means of the lift device.

[0006]

[Action]

 In the lift dump attachment for a tractor of the present invention, since the base frame is connected to the rear part of the tractor in an aerial state by one-sided support, it is not necessary to attach wheels or crawlers to the base frame. Therefore, the traveling can be performed only by the tractor suitable for traveling on the uneven field.

Further, since the loading platform is provided, the vegetables can be collectively transported, and the lifting system and the dumping system can directly transfer the vegetables from the loading platform to the transportation truck.

Further, since the drive means of the lift device is shared by the dump device, it is not necessary to provide the drive means exclusively for the dump device, and the structure can be simplified accordingly.

[0009]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1 is a side view showing a lifting operation of a lift dump attachment for a tractor of an embodiment, FIG. 2 is a side view showing a tilting operation of the attachment, and FIG. 3 is a partial front view of the attachment.

In the figure, reference numeral 1 denotes a base frame, which is provided with a rising portion 10 at a front end thereof, and in the rising portion 10, the rear portion of the tractor T is unilaterally supported and is connected in an imaginary state. In this case, the upper link 20 and the lower links 21, 21 provided on the rear portion of the tractor T are connected in a three-point supporting state.

A loading platform 4 is provided on the base frame 1 via a lift device 3. Left and right doors 40, 40 and a rear door 41 are provided on the platform 4 so as to be able to be erected.

The lift device 3 uses a cross link 30 in which two support links 3a and 3b are crossed in an X shape, and the crossing portion is axially mounted 31. The rear lower end of the one support link 3a is pivotally attached 32 to the base frame 1, and the rear upper end of the other support link 3b is pivotally attached 33 to the carrier 4. The upper end of the front side of one support link 3a is fitted into the upper guide rail 34 having a U-shaped cross section attached to the lower surface of the loading platform 4 via a roller 35, and the lower end of the front side of the other support link 3b is a base. It is fitted via a roller 37 into a lower guide rail 36 having a U-shaped cross section attached to the upper surface of the frame 1.

A hydraulic cylinder 5 as a driving means is provided between the one support link 3 a and the base frame 1. Therefore, by extending and contracting the hydraulic cylinder 5 to raise and lower the cross link 30, the platform 4 can be moved up and down between the lowered position (solid line position in FIG. 1) and the raised position (phantom line position in FIG. 1). it can. At this time, when the cross link 30 is tilted, the front upper end of the one support link 3a moves along the upper guide rail 34 by the roller 35, and the front lower end of the other support link 3b moves by the roller 37. Moves along the lower guide rail 36. The hydraulic cylinder 5 is connected to the hydraulic pressure outlet 22 of the tractor T.

The loading platform 4 is provided on the base frame 1 so as to be tiltable by a dump device 6. The dump device 6 also uses the hydraulic cylinder 5 as a drive means, and also the upper surface of the front end portion of the lower guide rail 36, that is, the position of the roller 37 of the other support link 3b in a state where the cross link 30 is lying down. The upper surface of the portion is cut out, and the upper surface member 70 is detachably provided in the cutout portion 7.

The upper surface member 70 is attached to the upper end of an arm 71 pivotally mounted on the base frame 1 by a support shaft 11. An operation lever 72 is attached to the support shaft 11, and the operation lever 72 is positioned between the open position and the closed position by the guide groove 74 of the operation guide plate 73 attached to the base frame 1.

Therefore, when the operation lever 72 is positioned at the open position by the guide groove 74, the upper member 70 is separated from the notch 7 of the lower guide rail 36 by the rotation of the arm 71, and the notch 7 makes the lower guide The upper surface of the front end portion of the rail 36 is open. When the hydraulic cylinder 5 is operated in this open state, the other support link 3 in the state in which the cross link 30 is laid down, this roller 37 is disengaged from the lower guide rail 36 through the cutout portion 7, and as shown in FIG. , The cross link 30 tilts along with the loading platform 4 in the state of lying down.

Further, when the operation lever 72 is positioned at the closed position by the guide groove 74, the upper surface member 70 closes the cutout portion 7 of the lower guide rail 36. When the hydraulic cylinder 5 is operated in this closed state, the roller 37 of the other support link 3b moves along the lower guide rail 36, so as described above, when the cross link 30 is tilted. The loading platform 4 can be raised and lowered. Therefore, by opening and closing the upper surface member 70 with respect to the cutout portion 7 in accordance with the switching of the operation lever 72, it is possible to select the lifting and tilting of the loading platform 4.

Next, the operation of the embodiment will be described. In this embodiment, the base frame 1 is connected to the rear portion of the tractor T in an aerial state by one-sided support of the upper link 20 and the lower links 21, 21 by three-point support. Therefore, it is not necessary to attach wheels or crawlers to the base frame 1, and the traveling can be performed only by the tractor T suitable for traveling in an uneven field.

Further, since the loading platform 4 is provided, vegetables can be collectively transported, and the lifting device 3 and the dumping device 6 can directly transfer the vegetables from the loading platform 4 to a transportation truck.

Further, since the hydraulic cylinder 5 that is the drive means of the lift device 3 is shared by the dump device 6, it is not necessary to provide a drive means exclusively for the dump device 6 and the structure can be simplified accordingly. The operation lever 72 can easily switch between raising and lowering by the lift device 3 and tilting by the dump device 6.

Although the embodiment of the present invention has been described above with reference to the drawings, the specific configuration is not limited to this embodiment.

[0022]

[Effect of device]

 As described above, the tractor lift dump attachment of the present invention uses a tractor suitable for traveling on rough terrain and has both a lift function for raising and lowering the loading platform and a dumping function for tilting the loading platform. Therefore, harvested vegetables can be easily transported and transshipped, and since the driving means of the lifting device and the dumping device are shared, the structure can be simplified.

[Brief description of drawings]

FIG. 1 is a side view showing an elevating operation of a tractor lift dump attachment of an embodiment.

FIG. 2 is a side view showing a tilting operation of the lift dump attachment for a tractor of the embodiment.

FIG. 3 is a partial front view of the tractor lift dump attachment of the embodiment.

[Explanation of symbols]

 T tractor 1 base frame 3 lift device 4 loading platform 5 hydraulic cylinder (driving means) 6 dump device

Claims (1)

[Scope of utility model registration request] 1. A rear frame of a tractor having a base frame connected in an imaginary state by one-sided support, on which a carrier is provided via a lift device, and the carrier shares the drive means of the lift device. The lift dump attachment for tractors, which is tiltably provided on the base frame by the dump device.