JPH0724Y2 - Pull-out type protection device for rhizomes and root vegetables - Google Patents

Description

[Detailed Description of the Invention] <Industrial field of application> The present invention relates to a harvesting device for extracting rhizomes such as ginger, potato, radish, turnip, and burdock, or root vegetables, etc. It is easy to harvest and provides a simple structure.

<Prior art and its problems> Ginger, when extracting and harvesting such rhizomes and root vegetables, it was conventionally done manually.

In this harvesting method, you have to continue working in a forward bending posture for a long time, and the stems and roots extend out into the ground and take a lot of labor to extract, so you feel a lot of fatigue and hurt your back, The yield per unit time is also low.

Moreover, for example, ginger has a short harvest period,
During this period, all the harvest must be completed, and the concentration of the work can make the work messy and damage the root vegetables or rhizomes when the work is pulled out.

Also, if you try to finish the harvest in this decided short time, the fatigue per person will be larger for a small number of people, and conversely, it will take a large number of people to reduce this effort,
Labor costs will increase.

The present invention aims to easily harvest a large amount of rhizomes and root vegetables and to implement them at low cost.

<Means for Solving the Problems> Means for solving the above problems will be described below with reference to the drawings corresponding to the embodiments.

That is, the present invention includes a base frame 1, a holding frame 2 for holding, a holding frame 3 for holding, and a holding / releasing drive device 4, and the base frame 1 includes a connecting portion 5 to a work operating device B of a work vehicle A. With respect to the base frame 1, the holding frame 2 for clamping has a pulling work posture E in which a central portion in the left-right direction faces forward, and a discharge work posture F in which one side portion in the left-right direction faces laterally outward. The clamp holding frame 3 is supported so as to be switchable, and the clamp holding frame 3 is supported so as to be positionally switchable between a clamping operating position C approaching the clamping receiving frame 2 and a releasing operating position D moving away from the clamping receiving frame 2. The holding frame 3 is provided between the holding frame 3 for holding and the receiving frame 2 for holding, and the holding frame 3 for holding can be driven to switch between a holding operating position C and a releasing operating position D with respect to the holding receiving frame 2. It is characterized by that.

<Operation> According to the pulling-out type harvesting apparatus, for example, root vegetables can be mechanically pulled out easily by the following procedure.

The base frame 1 is connected to the operation device B for work of the work vehicle A via the connection portion 5, and the work vehicle A is moved to a position where, for example, a ridge in which root vegetables are planted is crotch.

The base frame 1 is lifted above the roots of the root vegetables planted on the ground, the receiving frame 2 is pulled out to the working posture E, and the holding frame 3 for holding is held by the holding / releasing drive device 4. Release operation position D is switched to 2 and the operation is performed.

The work operation device B lowers the base frame 1 to lower the sandwiching receiving frame 2 and the sandwiching holding frame 3 to a position where the stems and leaves of root vegetables planted on the ground can be sandwiched. .

The holding / releasing drive device 4 switches the holding frame 3 for holding to the holding operating position F, and holds the root vegetables between the holding frame 3 for holding and the receiving frame 2 for holding.

The base frame 1 is raised by the operation device B for work and the root vegetables are pulled out.

The holding frame 2 for sandwiching is switched from the pulling-out work posture E to the discharging work posture F, and the sandwiched root vegetables are moved to the lateral outside of the pulling-out position.

The holding frame 3 for holding is released by the holding and releasing device 4 to switch to the working posture D, and the holding of the root vegetables is released to work the work vehicle A.
To the outside of the side.

The sandwiching receiving frame 2 is switched from the discharging work posture F to the pulling work posture E, the harvesting device is pulled back to the operation posture described above, and the next pulling operation is performed.

<Effects of the Invention> (1) By using the pull-out type harvesting device, the root vegetables or rhizomes can be mechanically pulled out easily.

Therefore, compared to the conventional case of manually working, the work efficiency is improved, the labor of the worker can be reduced, and the pulling force can be always kept constant, so that the root vegetables and the like can be prevented from being damaged during the pulling. .

(2) In this pull-out type harvesting device, for example, a root mechanism can be harvested by using a work vehicle operation device such as a link mechanism at the front part of the tractor or a three-point link mechanism at the rear part as existing equipment. The number of dedicated parts of the pulling device can be reduced and the cost can be reduced.

<Embodiment> An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a right side view of the pull-out type harvesting device, FIG. 2 is a rear view of a base frame, FIG. 3 is a rear view of a main portion of a holding frame for holding, and FIG.
The drawing is a right side view of the holding frame, FIG. 5 is a rear view of the holding frame for clamping, FIG. 6 is a right side view of the receiving frame, FIG. 7 is an operation explanatory view of the engaging portion, and FIG. FIG. 9 is a diagram showing the operating principle of the pulling work position of the pull-out type harvesting device, and FIG. 9 is a diagram showing the working principle of the discharging work position of the harvesting device. The harvesting device comprises a base frame 1, a holding frame 2 for holding, and a holding frame for holding. 3 and a holding / releasing drive cylinder 4 and is connected to a link mechanism B at the front part of the tractor A via a connecting part 5.

That is, the support rod 10 and the fulcrum rod 6 are provided above and below the intermediate portion in the left-right direction of the rectangular base frame 1 to form the connecting portion 5, and the fulcrum rod 6 provided below the intermediate portion is provided with the above-mentioned tractor A. Link mechanism B
The lift arm 7 of the link mechanism B is connected, and the drive rod 12 of the tilt cylinder 11 of the link mechanism B is connected to the support rod 10 provided above the lift arm 7.

The base frame 1 swings in the directions of arrows K and L around the fulcrum rod 6 by the tilt cylinder 11 moving forward and backward, and moves up and down by the swinging operation of the lift arm 7 by the lift cylinder 8.

A pair of support plates 14 are provided on the right frame portion 13 of the base frame 1 (second
Since the figure is a rear view, the support plate 14 is located on the left side), and the support cylinder 16 is provided so as to project from the right frame portion 14 of the holding frame 2 for clamping (FIG. 5 is a rear view, so the support cylinder 16 is located on the left side). Are positioned on the support plate 14 and the bolts 17 support both of them concentrically.

Then, as shown in FIG. 9, the clamping receiving frame 2 is pulled out to the base frame 1 as shown in FIG. It is supported so that it can be opened / closed in a discharging work posture F which is laterally outward.

In this case, the engaging hook portion 20 is rotatably supported on the left frame portion 18 of the base frame 1 about the support rod 19, and the hook receiving portion 22 is provided on the left frame portion 21 of the sandwiching receiving frame 2 facing each other. Set up.

As shown in FIG. 7, the engaging hook portion 20 is a spiral spring.
The hook 25 is urged by 23 to engage with the hook receiving portion 22, and as shown in FIG. 9, when the manual operation lever 24 is tilted in the direction of arrow M, the wire 25 acts and the engaging hook portion 20 is released. To be configured.

Further, a buffer spring 26 for limiting an opening angle is interposed between the upper frame portion of the base frame 1 and the upper frame portion of the holding frame 2 for sandwiching.

On the other hand, as shown in FIG. 1, an L-shaped holding frame 3 having an L-shape in a side view is swingably pivotally supported on the holding frame 2 for holding, and a lower side portion of a side frame portion of the receiving frame 2 is formed. A clamping operation position C in which the clamping / releasing drive cylinders 4 are interposed between the holding frame 3 and the side surface portion of the upper frame portion 27 on the left and right sides, respectively, and the clamping press frame 3 approaches the clamping receiving frame 2. And the release operating position D which is moved away from each other so that the position can be switched.

The elongated holding portions 28 and 29 made of rubber are attached to the lower portions of the holding frame 3 for holding and the receiving frame 2 for holding so as to be swingable so that the holding frame 3 for holding is held at the holding operating position C. When the position is switched, the underground stem or the like is sandwiched between the sandwiching portions of the both.

Reference numeral 30 is a grounding leg for adjusting the pulling-out height.

Therefore, for example, a work procedure for pulling out ginger, which is a rhizome, with the pull-out type harvesting device will be described mainly with reference to FIGS. 1, 7, 8, and 9.

Place the tractor A at the position where you crotch the ridge where ginger is planted.
And the lift arm 7 of the front link mechanism B of the tractor A is lifted in the direction of arrow P by the lift cylinder 8 to position the base frame 1 at the higher extraction start position.

The holding frame 3 for holding is switched to the release operating position D with respect to the receiving frame 2 for holding by the holding / release drive cylinder 2.

The lift arm 7 of the front link mechanism B is lowered in the direction of the arrow Q to lower the base frame 1 to a lower position, and between the holding frame 3 for holding and the holding portions 28, 29 of the receiving frame 2 on the ground of the ginger. Position it so that the bottom of the protruding stem is pinched.

The height of clamping the stem is adjusted as described in (a) and (b) below.

(A) Adjust the grounding leg 30 to an appropriate height to set the holding height of the base frame 1.

That is, when the base frame 1 descends, the grounding leg 30 reaches the ground and indicates the lowering limit, and the height of the grounding leg 30 at this time becomes the clamping height.

(B) If the grounding leg 30 is not used for adjustment, the grip 28
When the tractor A is brought close to the ginger while widening the holding frame 3 for gripping so that the height is substantially the same as the upper end of the ginger stalk, the gripping portion 29 of the receiving frame 2 has a substantially proper position for gripping the ginger. Since it is automatically positioned at the height, the holding height is adjusted with the height of the holding portion 28 of the holding frame 3 in the open leg state as a guide.

The holding / releasing drive cylinders 4, 4 are operated to switch the holding frame 3 for holding to the holding operation position C with respect to the receiving frame 2 for holding, and hold the stems of the holding portions 28, 29.

The lift arm 7 is operated in the direction of arrow P to move the base frame 1
Raise and pull out the ginger.

The tilt cylinder 11 is used to incline the base frame 1 so that it goes forward as it goes upward, and the holding frame 2 is switched to a pulling-out work position E in which the center part in the left-right direction is raised forward (see FIG. 8). ).

The manual operation lever 24 is pulled in the M direction to rotate the engaging hook portion 20 in the R direction to release the engagement with the hook receiving portion 22.

At this time, since the clamping receiving frame 2 is tilted forward, the supporting frame 16 of the right frame portion is used as a fulcrum with respect to the base frame 1 and is largely rotated in the lateral outward S direction of the ginger ridge due to its own weight. At the same time, the stopping action of the buffer spring 26 switches the posture to the discharging work posture F.

However, the operation of switching the holding frame 2 for clamping to the discharging work position F may be performed mechanically by providing a hydraulic cylinder or the like between the base frame 1 and the receiving frame 2.

After the pulling operation in the M direction, the manual operation lever 24
Push down in the N direction and pull out.

The clamping / releasing drive cylinder 4 is driven to switch the clamping pressing frame 3 to the clamping receiving frame 2 to the releasing operation position D, and the extracted ginger is dropped to the lateral outside of the ridge.

The tilt cylinder 11 tilts the base frame 1 forward as it goes downward, and the holding frame 2 for clamping is held by its own weight.
Is rotated in the T direction and pulled back to the base frame 1 (see FIG. 9).

At this time, since the engaging hook portion 20 is biased in the U direction by the spiral spring 23, the receiving frame 2 is automatically engaged with the base frame 1.

By the above-mentioned pull-back operation, the harvesting device returns to the above-mentioned operation posture, and the next pull-out procedure is started.

As described above, according to the harvesting device of the present invention, ginger,
You can easily pull out any of these rhizomes or root vegetables mechanically, and you can use existing mechanisms such as the link mechanism on the front part of the tractor and the three-point link mechanism on the rear part.

Further, in particular, as seen in the above-mentioned embodiment, the holding frame 2 for sandwiching is provided.
The posture switching between the pulling-out work posture E and the discharging work posture F can be performed by its own weight and no mechanical operation is required.

[Brief description of drawings]

The drawing shows an embodiment of the present invention, FIG. 1 is a right side view of a pull-out type harvesting device, FIG. 2 is a rear view of a base frame, FIG. 3 is a rear view of a main portion of a holding frame for clamping, and FIG. Is a right side view of the holding frame, FIG. 5 is a rear view of the holding frame for clamping, FIG. 6 is a right side view of the receiving frame, FIG. 7 is an operation explanatory view of the engaging portion, and FIG. FIG. 9 is an operational principle diagram of the pulling-out type harvesting device at the pulling work position, and FIG. 1 ... Base frame, 2 ... Clamping receiving frame, 3 ... Clamping holding frame, 4
... Clamping / release drive device, 5 ... Coupling part, A ... Work vehicle, B
... operation device for operation, C ... clamping operation position, D ... release operation position, E ... withdrawal work posture, F ... ejection work posture.

Claims (1)

[Scope of utility model registration request] 1. A base frame 1, a holding frame 2 for pinching, a holding frame 3 for pinching, and a pinching / releasing drive device 4. The base frame 1 has a connecting portion 5 to a work operating device B of a work vehicle A. With respect to the base frame 1, the holding frame 2 for sandwiching is switched between a pulling-out work posture E in which the central portion in the left-right direction faces forward and a discharge work posture F in which the lateral side faces outward in one side portion in the left-right direction. The clamping holding frame 3 is supported so as to be positionally switchable between the clamping operating position C approaching the clamping receiving frame 2 and the releasing operating position D moving away from the clamping receiving frame 2, and the clamping / releasing driving device 4 clamps The holding frame 3 is provided between the holding frame 3 and the holding frame 2 so that the holding frame 3 can be switched between the holding operating position C and the releasing operating position D with respect to the holding receiving frame 2. Rhizome characterized by
Extraction type harvesting device for root vegetables