JPH08205647A - Digger for rootcrop or the like - Google Patents

Abstract

PURPOSE: To provide a digger for rootcrops such as Dioscorea batatas of large size, so designed as to rise the rootcrops together with the surrounding culture soil, continuously exclude the upper layer dug soil sideward, thereby enabling the neck of the rootcrops to be gripped easily. CONSTITUTION: This digger for rootcrops is made up of a digging body 16 set up on a base frame 4 so as to be rotatable relatively to a support bar 14 therethrough and situate the front part below the rear part, a mechanism 25 set up on the rear of the base frame 4 and to convert the rotation transmitted from an input shaft 3 into swinging motion on the plane crossing with the advancing direction of the base frame, an excluding material 24 with its tip situated on the upper part of the digging body to be subjected swinging motion by the mechanism 25 on the plane crossing with the advancing direction of the base frame 4, a mechanism 26 to convert the rotation transmitted from the input shaft 3 into vertical motion, and a bar 15 connecting the mechanism 26 to the digging body 16 behind the support bar 14.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a digger for root vegetables and the like.

[0002]

2. Description of the Related Art Various digging machines for root vegetables that have grown long and have a long diameter have been proposed. For example, Japanese Utility Model Application No. 4-65021 (Actual Application No. 2-109626) relating to the same applicant
Is a long-term effort to harvest efficiently without damaging the skin.

[0003]

[Problems to be Solved by the Invention]

In the above-mentioned trencher, in order to dig up a long-length long pear without damaging it carefully, the bottom end of the root vegetable is excavated and the bottom of the root is dug up.
There was a problem that the amount of excavated soil and the amount of floating soil were large.

This large amount of excavated soil that is moved causes a great amount of hard work for an operator who grips and pulls out a long neck at the rear of the trencher. In order to solve this, one or two assistants are needed immediately before the harvester to scrape the excavated soil on the surface to one side or both sides to project the neck.

[0006]

Means for Solving the Problems

A base frame attached to the tractor, a digging body installed on the base frame so as to be rotatable with respect to the support bar via the support bar and with its front portion located below the rear portion. Swing motion conversion for converting the input shaft rotated by the driving force of the tractor PTO shaft and the rotation transmitted from the input shaft installed in the rear part of the base frame into a swing motion on a plane intersecting the traveling direction of the base frame. The mechanism, the tip is located on the upper part of the dugout body, and the swing motion conversion mechanism converts the rotation transmitted from the input shaft to the vertical motion by the swing motion on the surface that intersects the traveling direction of the base frame. Vertical motion conversion mechanism,
A digging machine for root vegetables etc., characterized by comprising a connecting bar that connects the vertical movement converting mechanism and the digging body at the rear of the support bar,

[0008] is provided.

When the digging machine according to the present invention is introduced into a field to start harvesting with cultivation ridges such as root vegetables, the digging body is moved up and down by the operation of the vertical movement conversion mechanism, and the root soil is grown together with the surrounding cultivation soil. Lift up. The tip of the excluding material is located on the upper part of the dugout body and is rocked by the rocking motion conversion mechanism in the plane intersecting the traveling direction of the base frame, so that the cultivated soil floating with the root vegetables moves from the surface layer to the side. Since it is continuously removed, the neck of root vegetables etc. projects. Therefore, the worker can easily grasp and pull out.

[0010]

DETAILED DESCRIPTION OF THE INVENTION Embodiments of the present invention will be described.

FIG. 1 is a perspective view of the present invention. The mission 12 is mounted on the base frame 4 and the drive sprockets 13 are arranged on the left and right. An input shaft 3 is connected to a PTO shaft of a tractor (not shown), and a rear end eccentric shaft 11 is rotated via a counter shaft 10 by pulleys 8 and 8'between the upper parts. A boom 6 is fixed to the outside of the base frame 4 and is provided with a tension material to which the excavation chain 7 is attached. Reference numeral 2 denotes a mast stay, the base portion of which is pivotally attached to the base frame 4 and which forms a top hitch 1 at the front of the upper portion and is connected to one end of a hydraulic cylinder 9 at the rear. The other end of the hydraulic cylinder 9 has a base frame 4
The mounting angle of the mast stay 2 changes when the hydraulic cylinder 9 is expanded and contracted by being fixedly attached to the bracket projecting on the rear portion. 5
Is configured to be movable laterally with respect to the base frame by a lower pin.

An upper portion of the support bar 14 is fixed to the base frame, and a lower end of the support bar 14 is rotatably fixed to a front side portion of the dugout body 16. Reference numeral 15 is a connecting bar, the upper part of which is pivotally attached to the eccentric shaft 11 and the lower end of which is fixed to the rear part of the excavating blade body 16. Reference numeral 17 denotes a blade portion which has a plane chevron shape and constitutes the front portion of the excavating blade body to perform an oscillating motion.

Reference numeral 23 is a second counter shaft, and 10 is a counter shaft.
Transmitted from a pulley through. The rotation of the second counter shaft 23 drives the exclusion material 24 via 25 rotating rods.

FIG. 2 is a side view showing a cross section of excavation. The grown long haul moves with the surrounding cultivation soil and moves on the upper surface of the body. The long thighs are lifted up together with the surrounding cultivation soil, the surface layer is scraped off by the excluding material 24, and the long necks are projected.

FIG. 3 is a rear sectional view showing a dug state. 22 indicates the width of the excavation groove formed by the excavation chain 7,
Since the support bar 14 and the connecting bar 15 are propelled in this groove, the propulsion resistance is very small. By the rotation of the second counter shaft 23, the rotating rod of 25 causes the exclusion member 24 to swing as indicated by a dotted arrow. Reference numeral 26 is a base pin at the top of the excluding material.

[0016]

[Effects of the Invention] With the above-described configuration, even when digging long-rooted isotonic vegetables, the upper-layer excavated soil that has floated up with the surrounding cultivation soil is continuously removed to the side. The person was able to easily grip the neck, and it was a light work.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

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

FIG. 3 is a rear sectional view of the embodiment of the present invention.

[Explanation of symbols]

 1 Top Hitch 2 Mast Stay 3 Input Shaft 4 Base Frame 5 Lower Pin 6 Boom 7 Excavation Chain (Excavation Means) 8 Pulley 8'Pulley 9 Hydraulic Cylinder 10 Counter Shaft 11 Eccentric Shaft 12 Mission 13 Drive Sprocket 14 Support Bar 15 Connecting Bar 16 Digging Body 17 Blade part 18 Spindle 19 Belt 20 Roller 21 Side plate 22 Excavation groove width 23 Second counter shaft 24 Exclusion material 25 Rotating rod (oscillating motion converting mechanism) 26 Base pin (vertical motion converting mechanism)

Claims (1)

[Claims] 1. A base frame to be attached to a tractor, and a dug body installed on the base frame so as to be rotatable with respect to the support bar via a support bar and with its front portion located below the rear portion. And an input shaft that is rotated by the driving force of the tractor PTO shaft, and a swing that converts the rotation transmitted from the input shaft that is installed in the rear portion of the base frame into a swing motion on a plane that intersects the traveling direction of the base frame. The motion conversion mechanism, the tip is located above the excavated body, the oscillating motion conversion mechanism causes the oscillating motion in a plane that intersects the traveling direction of the base frame, and the rotation transmitted from the input shaft moves up and down. An excavator for root vegetables and the like, which comprises a vertical movement converting mechanism for converting into a vertical movement converting mechanism and a connecting bar for connecting the vertical movement converting mechanism and the excavating body at a rear portion of a support bar.