JPH0367645B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an improvement in an onion digging machine that digs out the roots buried underground after cutting off the leaves and stems of onions grown in a ridge without damaging them. It is something.

(Prior Art) When onions grown in a ridge are harvested, their leaves and stems wither and hang down on the surface of the ridge. For this reason, the leaves and stems hanging down on the surface of the ridges are pulled up, for example, with a lifting lever of a leaf and stem lifting device, cut to a predetermined length, and then the onions are dug out from the ridges.

Further, the conventional lifting rod is entirely made of an extremely hard material.

(Problem to be solved by the invention) By the way, a part of an onion is exposed on the ground surface, and when lifting the leaves and stems with a lifting rod, the lifting rod hits the exposed part of the onion. However, there was a problem with the lever, which was made entirely of extremely hard material, because it damaged the exposed skin of the onion, leading to a decline in quality.

Therefore, if, for example, a brush is integrally fixed to the tip of the lifting rod, the above problem can be solved.

However, when the brush is fixed to the tip of the lifting rod as described above, the brush scrapes the ground surface when lifting the onion leaves and stems, and the brush always moves in one direction. As a result, the brush becomes curly and bent in a relatively short period of time, creating a new problem in that the brush must be replaced frequently.

An object of the present invention is to solve the above-mentioned problems all at once by connecting a brush rotatably to the tip of a lifting rod, thereby preventing quality deterioration during harvesting, and preventing the brush from deteriorating during harvesting. The objective is to make it possible to use the product economically over a long period of time without having to replace it.

(Means for Solving the Problems) In order to solve the above object, the present invention has a pair of left and right endless bands stretched between a driving wheel and a driven wheel at the front part of a vehicle chassis and slopes low forward. A raised part that can be raised and lowered is connected to each of the endless bands, and the raised part is formed by a lifting rod and a brush that is rotatably provided at the tip thereof, and a hammer vine is placed horizontally at the rear of the endless band. A pair of vibrating rods that vibrate back and forth about an upper fulcrum are suspended from the rear left and right sides of the vehicle chassis, and both ends of a digging blade are fixed to the lower ends of each of the pair of vibrating rods.

(Function) That is, the present invention, when harvesting onions,
A pair of left and right endless chains 10 and 13 are endless bands.
each rotates in a predetermined direction, and a pulling portion 14 is connected to each of the endless chains 10 and 13.
stands up in the raising process and raises the leaves and stems of the onion.

The leaves and stems thus raised are cut off by the hammer 3, and the onion from which the leaves and stems have been cut is dug out from the ground by the digging blade 27.

Incidentally, the brush 18 can be rotated according to the working time in order to prevent the brush from curling.

(Example) FIG. 1 is a schematic side view of an embodiment of the present invention.

In the figure, reference numeral 1 denotes a vehicle chassis, on which an engine 2 is mounted and each component to be described later is arranged.

Reference numeral 3 denotes a hammer cutter provided at the front lower part of the vehicle chassis 1, and cutting blades 3a are provided radially around the outer periphery of a horizontal shaft 3b installed on the chassis 1. This cutting blade 3a is 2
The blade is swingably attached to the horizontal shaft 3b with a bolt and nut, and when the hammer cutter 3 is rotated, it stands upright with respect to the horizontal shaft 3b by centrifugal force. Further, the horizontal shaft 3b of this hammer cutter 3 is the output shaft 2a of the engine 2.
is rotated in a predetermined direction via a plurality of belts.

Reference numeral 4 denotes drive wheels attached to the left and right sides of the chassis 1 so as to rotate at a reduced speed from the output shaft 2a of the engine 2 via a belt.The drive wheels 4 move forward while supporting the chassis 1 across the ridges 5.

Reference numeral 6 denotes a leaf and stem lifting device which is disposed in an inclined manner in front of the hammer vine using the front part of the chassis 1, and which pulls up the leaf and stem of the onion 7 as the present embodiment moves forward. driven by.

As shown in FIG. 2, this leaf and stem part pulling device 6 rotatably stretches an endless chain 10, which is an endless belt, between a driving wheel 8 and a driven wheel 9, and also connects a driving wheel 11 and a driven wheel 12. An endless chain 13 is rotatably stretched between the endless chains 10 and 13.
are arranged side by side on the left and right. Drive wheel 8 and drive wheel 11
are configured to be driven by an engine 2, respectively.

Endless chains 10 and 13 are provided with lifting parts 14 that can be raised and lowered at predetermined intervals for pulling up the leaf and stem parts of onion 7.

As shown in FIG. 3, this lifting portion 14 is connected to a lifting rod 16 rotatably connected to the ring plate 10a of the endless chain 10 with a pin 15, and a recess 16a provided at the tip of the lifting rod 16. It consists of a brush 18 whose tip 16c is bent while being inserted and is rotatably connected to the tip of the lifting rod 16. The brush 18 is made of a wire made of synthetic resin or the like, and the rear end of the wire is tied together with a metal fitting 19 or the like.
As mentioned above, the part of the metal fitting 19 is raised and the rod 16
is inserted into the recess 16a.

The lifting rod 16 is provided with a protrusion 16b, and this protrusion 16b serves as the case 2 for storing the endless chain 10, etc.
A guide path 22 formed by the end of 0 and the guide member 21
The structure is such that the pulling part 14 is in an upright state as shown in FIG. 2 when the onion leaf stem part is guided by the onion leaf stem.

FIG. 4 shows another embodiment of the raised portion.
A is provided, and this concave line 49a is adapted to fit into a convex line 46b provided in a concave portion 46a of the lifting rod 46. With such a configuration, the brush 48
Once the metal fitting 49 is inserted into the recess 46a of the lifting rod 46, it will not come off, and the brush 48 can freely rotate in the direction of the arrow in FIG.

Numeral 23 denotes a pair of front wheels that straddle the ridges 5 like the driving wheels 4 and guide the chassis 1, and are fixed to the front part of the chassis 1. This front wheel 23 is
4 and set screws 25, the hammer vine 3 adjusts the approach of the leaf and stem part pulling device 6 to the ground surface according to the height of the ridges 5.

Reference numeral 26 designates a pair of vibrating rods whose upper ends are vertically disposed at the rear left and right sides of the chassis 1 so as to be swingable back and forth.

A digging blade 27 is composed of a blade body 27a attached almost horizontally to the lower ends of the left and right vibrating rods 26, and a plurality of soil shaking rods 27b connected to its rear side.
The soil shaking rod 27b may be configured to gradually slope upward toward the rear.

Reference numeral 28 denotes left and right eccentric wheels that are interlocked with the output shaft 2a of the engine 2, and a vibration rod 26 is pivotally attached to the rear end of a connecting rod 29 connected thereto, causing the vibration rod 26 to violently vibrate back and forth. 30 is a handle for operation.

Next, the harvesting operation of the embodiment of the present invention configured as described above will be explained.

Now, when the chassis 1 starts moving forward by the driving wheels 4, the driving wheels 8 and 11 of the leaf and stem part pulling device 6 are driven accordingly, and the endless chains 10 and 13 are rotated in the direction of the arrow in FIG. Start.
When each raising portion 14 reaches the drive wheels 8 and 11, it becomes a standing state, and this standing state continues until it reaches the end of the guide path 22, so that the onion 7
The leaf and stem portions of the leaf stems are raised by the raising portions 14 in this upright state.

Here, when the pulling part 14 pulls up the leaf and stem part of the onion 7, only the brush 18 touches the exposed part of the onion 7, so the exposed part of the onion 7 will not be damaged. Also, brush 1
8 scrapes the ground surface when hoisting, and since this direction is one direction, there is a risk that the brush 18 may get bent, but if the brush 18 is rotated according to the working time, the above-mentioned disadvantages can be prevented. can do.

Next, the onion leaves and stems pulled up as described above are cut off by the cutting blade 3a of the hammer vine 3 which is rotating.

Further, the digging blade 27 fixed to the vibrating rod 26 cuts off the ridge 5 while vibrating back and forth, and the roots of the onions remaining in the ground are shaken off by the blade 27a.
7b and release it to the surface while shaking off the soil.

(Effects of the Invention) As explained above, according to the present invention, since the raising part is formed by the raising rod and the brush provided at the tip thereof, the exposed part of the onion is not damaged during harvesting. This prevents quality deterioration due to aging.
Moreover, when the lifting rod completes the lifting process and releases the erected state, the onion leaves and stems are smoothly separated from the lifting rod and do not get caught in an endless chain or the like.

Further, according to the present invention, since the brush provided at the tip of the lifting rod is rotatable, it is possible to prevent the brush from becoming curly by rotating the brush according to the working time. It is economical and can be used for a long period of time without having to be replaced.

[Brief explanation of drawings]

Fig. 1 is a schematic side view of an embodiment of the present invention, Fig. 2 is a schematic plan view of a leaf and stem part pulling device, Fig. 3 is a cross-sectional view showing the state of connection between the endless chain and the pulling part, and Fig. 4. FIG. 3 is a partially cutaway sectional view showing another embodiment of the raising portion. 1 is a chassis, 3 is a hammer, 6 is a leaf and stem part pulling device, 8 and 11 are driving wheels, 9 and 12 are driven wheels,
10 and 13 are endless chains, 14 and 44 are lifting parts, 16 and 46 are lifting rods, 18 and 48 are brushes, 26 is a vibrating rod, and 27 is a digging blade.

Claims (1)

[Scope of Claims] 1. A pair of left and right endless bands extending over a driving wheel and a driven wheel are provided at the front part of the vehicle chassis, slanting low forward, and a lifting part that can be raised and lowered is connected to each of the endless bands. The lifting part is formed by a lifting rod and a brush rotatably provided at the tip thereof, and a hammer stub is horizontally suspended behind the endless band, and the lifting part is formed by a lifting rod and a brush rotatably provided at the tip of the lifting rod. A leaf and stem lifting device for an onion excavator, comprising a pair of vibrating rods hanging down and both ends of a digging blade fixed to the lower ends of the pair of vibrating rods.