JPH06303827A - Apparatus for controlling tea field - Google Patents

Abstract

PURPOSE:To provide an apparatus for controlling a tea field, useful for controlling a hillside tea field. CONSTITUTION:This apparatus for controlling a tea field involves a controlling truck 1 composed of a horizontal frame 1a and leg units 1b respectively equipped with a wheel 17 at the lower end part, attached to both the right and left end parts of the horizontal frame and extending perpendicularly downward and a controlling unit such as a tea plucking unit 7 carried on the controlling truck. The upper part of each leg unit is connected to the right or left end part of the horizontal frame rotatably in the inter-track direction. A unit for correcting the inclination of the leg units is set through the horizontal frame 1a of the controlling track 1 and both the leg units to this apparatus so as to keep both the leg units in a right and left symmetric posture in the vertical direction by the correcting unit even if the inter-track dimension is changed on a slope inclined in the inter-track direction. Thereby, the controlling truck can be prevented from overturning and a stable and high-speed running can be performed. Even in case this apparatus is used on a slope inclined in the track direction or on a three-dimensional slope, control is carried out in the same manner. The distance (dimension of height) from the horizontal frame 1a to the ground can be constantly kept to an almost prescribed value and this apparatus, therefore, can perform a tea plucking work, etc., requiring the constant height from the ground.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tea plantation management device used for mechanization of various tea plantation management operations such as tea planting, tea leaf plucking, trimming, or pruning in tea ridge units, and in particular, a tea plantation on a sloping ground. The present invention relates to a tea plantation management device that is preferably used for the management work.

[0002]

2. Description of the Related Art Heretofore, various types of tea garden management devices have been proposed and are well known. For example, JP-A-3-
In the tea garden management device disclosed in No. 201908, both legs of a management trolley, which is driven by wheels on a track laid between the ridges (passages) on both sides of the tea ridge, have symmetrical shapes in response to changes in the dimension between the tracks. By swinging (tilting) and absorbing changes in track width, it is possible to properly manage the cutting of tea plants.

Further, the tea plantation management device described in Japanese Patent Application No. 3-337486 relates to the management of a tea plantation cultivated on a sloping land, and the slope of the ground is an inter-orbital direction of a track laid between the ridges on both sides of the tea ridge. One of the legs of the management truck can freely rotate when the vehicle is on a sloping ground, on a sloping ground in the track axis direction, or when it is three-dimensionally tilted in each of the inter-track direction and the track axis direction. It is configured to travel while maintaining a vertical posture.

[0004]

[Problems to be Solved by the Present Invention]

(1) In the case of the tea plantation management device described in Japanese Patent Laid-Open No. 3-201908, both legs simply swing (tilt) in a symmetrical shape to cope with changes in the dimension between the tracks. It's just a composition. Therefore, when it is used on a sloping ground in the inter-orbital direction, as shown in FIG. 23A or B, both leg portions 1b, 1b of the management cart incline in a direction perpendicular to the sloping ground. Therefore, there are problems of a risk of falling due to an unstable state of the management carriage due to the inclination and inefficiency of tea garden management work performed while feeling the risk. This problem also occurs when used on a sloped ground in the direction of the track axis. (2) Generally, the tea plant B cultivated on the sloping ground is designed so that the tea leaves of good quality are reliably plucked, and the chord B ′ of the cutting surface b is a line parallel to the sloping ground. The work of pruning and trimming is performed. Therefore, as shown in FIG. 23A or B, there is a possibility that the traveling drive device for the wheels of the management cart tilted in a posture perpendicular to the sloping ground may touch the hem of the tea plant and damage the hem. (3) The passage between the tea ridges is important for tea garden management work, but even if a person tries to walk through this passage, if the management trolley is tilted as described above, it will be difficult to pass through. (4) Next, Japanese Patent Application No. 3-33748 relating to the above-mentioned prior application
The tea plantation management device described in No. 6 has an inclination sensor installed on one leg and controls the drive means in accordance with the degree of inclination detected by the inclination sensor so that the vertical direction of the one leg is always maintained. It is configured to maintain the posture. Therefore, it is possible to maintain the posture in the vertical direction for both legs while the inter-track dimension always maintains the reference dimension. However, the tea plantation management device of the previous application stops the middle point of the inter-track dimension by simply controlling one leg to be in the vertical posture at all times when the track-to-track dimension changes when used on a sloping land. The vertical line passing through does not intersect with the center point of the horizontal frame of the management carriage (does not match). For this reason, it is not possible to cut the tea-cutting surface of the tea plant into a symmetrical shape with the mounted tea-cutting machine. As a result, uncut residue is likely to occur at the hem of the cutting surface. Old leaves, stems, etc. are easily mixed in the plucked tea leaves, and the quality (grade) of the tea leaves deteriorates. When using a one-sided mowing machine, there is a problem that a step is likely to occur at the top of the mowing surface.

[0005]

As a means for solving the above-mentioned problems of the prior art, in the tea garden management apparatus according to the first invention, the leg portions 1b are vertically downward at the left and right ends of the horizontal frame 1a. It has a management trolley 1 provided with wheels 17 at the lower ends of both legs, and management equipment such as a tea mower 7 mounted on the management trolley, and the upper parts of the both legs are a horizontal frame. In the tea garden management device that is rotatably connected to the left and right ends of the tea ridge in the inter-orbital direction, the management trolley 1 is configured to travel by wheels 17 on both tracks laid between the ridges on both sides of the tea ridge. In addition, the leg inclination correcting means is installed via the horizontal frame 1a and the two leg portions, and the leg portions are corrected by the correcting means in the vertical direction even if the dimension between the orbits is changed in the inclined land in the interorbit direction. It is configured to be able to maintain a symmetrical posture with respect to And wherein the Rukoto.

According to a second aspect of the invention, in the same tea garden management device as before, one end side of each of the pair of left and right stays 2 of the management carriage 1 is connected to symmetrical positions of both legs, and each other end side of the horizontal frame 1a is connected. It is connected to a symmetrical position in the center in the left-right direction, the connecting portion (slider 3) of the pair of left and right stays in the central portion is movable in the left-right direction, and the both legs are in the left-right direction of the connecting portion. Even if the inter-orbit dimension changes on the sloping ground in the inter-orbit direction due to the movement of, the posture can be maintained symmetrical with respect to the vertical direction.

According to a third aspect of the present invention, in the same tea garden management device as above, one end side of each of the pair of left and right stays 2 of the management carriage 1 is connected to symmetrical positions of both legs, and each other end side of the horizontal frame 1a is connected. The stays are connected to symmetrical positions (slider 3) at the center in the left-right direction, and the pair of left and right stays have adjustable effective lengths between both sides, and the leg portions have the effective length of the stay 2. By adjusting the above, it is possible to maintain the symmetrical shape with respect to the vertical direction even if the dimension between the orbits changes in the sloping ground in the inter-orbital direction.

According to a fourth aspect of the present invention, in the same tea garden management device as described above, the management cart has a horizontal frame 1a, both legs, and a link parallel to the horizontal frame 1a and having both ends connected to the two legs. A parallelogram link mechanism is formed by and the links are movable in the left-right direction, and the both leg portions are vertically moved even if the inter-orbit dimension is changed in the inter-orbit sloping ground by the left-right movement of the links. On the other hand, it is configured to be able to maintain a symmetrical posture.

In a fifth aspect of the present invention, there are provided a management trolley 1 in which legs 1b are provided vertically downward at both left and right ends of a horizontal frame 1a, and wheels 17 are installed at lower ends of the legs, and the management trolley. In a tea garden management device having a management device such as a tea mower 7 mounted thereon, the management carriage is configured to run by wheels on both tracks laid between the ridges on both sides of the tea ridge, and also has both legs. Is connected to the upper and lower front and rear columns constituting the respective legs so as to be rotatable in the orbital axial direction with respect to the front and rear end portions of the horizontal frame 1a, and the horizontal frame 1a and the front and rear columns are connected. A strut inclination correcting means is installed via the intermediary, and both the front and rear pillars are configured to be able to maintain a vertical posture even on a sloped ground in the track axis direction by the correcting means.

According to a sixth aspect of the present invention, in the same tea garden management apparatus as described above, the two legs of the management trolley 1 are provided on the upper and lower sides of the front and rear struts constituting each leg with respect to the front and rear ends of the horizontal frame 1a. The front and rear stays 62, 62 are connected to the symmetrical positions of the front and rear columns, and the other ends are symmetrical with respect to the center of the horizontal frame in the front-rear direction. Is connected to the target position, a connecting portion (slider 60) of the pair of front and rear stays in the central portion is movable in the front-rear direction, and both front and rear columns are moved by the movement of the connecting portion of the stay 62 in the front-rear direction. It is configured so that it can maintain its vertical posture even on an axially inclined land.

According to a seventh aspect of the present invention as well, in the same tea garden management device as described above, the two legs of the management carriage 1 are provided with the upper portions of the front and rear columns that form the respective legs, relative to the front and rear ends of the horizontal frame 1a. The stays 62 are rotatably connected to each other, one end side of each of the pair of front and rear stays 62 is connected to a symmetrical position of both front and rear columns, and each other end side is symmetrical with respect to the central portion of the horizontal frame 1a in the front-rear direction. The pair of front and rear stays 62 are adjustable in effective length between both side portions, and both front and rear columns are supported by adjusting the effective length of the pair of stays on a slope in the track axis direction. Is also configured to maintain a vertical posture.

According to the eighth aspect of the invention, in the same tea garden management device as described above, both legs of the management carriage 1 have their respective legs 1b.
The upper parts of both the front and rear columns that form the are connected to the front and rear ends of the horizontal frame 1a so as to be rotatable in the orbital axis direction, and are parallel to the horizontal frame 1a, the front and rear columns, and the horizontal frame. A parallelogram link mechanism is formed by the links 63 whose both ends are connected to the both columns, the links 63 are movable in the front-rear direction, and the front and rear columns are orbited by the movement of the links 63 in the front-rear direction. It is configured so that it can maintain its vertical posture even on an axially inclined land.

In the ninth aspect of the invention, like the first aspect of the invention, the leg portions 1b are provided vertically downward at the left and right ends of the horizontal frame 1a, and the wheels 17 are installed at the lower end portions of the leg portions. It has a trolley 1 and a management device such as a tea cutting machine 7 mounted on the management trolley, and the upper portions of both legs are connected to the left and right ends of the horizontal frame so as to be rotatable in the inter-track direction. In the tea garden management device, the management cart 1 is configured to travel by wheels on both tracks laid between the ridges on both sides of the tea ridge, and the leg portion intervenes between the horizontal frame 1a and both leg portions. Inclination correcting means is provided, and both leg portions can maintain a bilaterally symmetrical posture with respect to the vertical direction even on a sloping ground in the inter-track direction by the leg inclination correcting means. The both leg portions are connected to the upper and lower portions of the front and rear columns that form the respective leg portions so as to be rotatable in the orbital axial direction with respect to the front and rear end portions of the horizontal frame, and the horizontal frame and the two columns. The strut inclination correcting means is installed through the intermediary of the above, and both the strut are configured to be able to maintain the vertical posture even on the slope ground in the track axis direction by the strut inclination correcting means.

In a tenth aspect of the present invention, there is provided a management carriage 1 in which legs 1b are provided vertically downward at both left and right ends of a horizontal frame 1a, and wheels 17 are installed at lower ends of the both legs. It has a management device such as a mounted lawn mower 7 and the upper portions of the both leg portions are connected to the left and right end portions of the horizontal frame so as to be rotatable in the inter-track direction. In the tea garden management device configured to be swingable in a shape, the management carriage has wheels 1 on both tracks that are laid between the ridges on both sides of the tea ridge.
The left and right stays are connected to symmetrical positions on both legs, and the other end sides are connected to symmetrical positions on the lateral center of the horizontal frame. The connecting portion of the pair of left and right stays in the central portion is movable in the left-right direction together with the management device supporting means located in the central portion of the horizontal frame, and the track is formed by the left-right movement of the connecting portion of the stays. Even if the dimension between the tracks changes in the sloping ground in the inter-direction, both legs are symmetrical with respect to the vertical direction so that the center point d of the horizontal frame is located on the extension of the vertical line n passing through the midpoint P between the tracks. It is configured to be swingable in a shape, and the center of the management device support means can be positioned on an extension of the center line b ″ of the cutting surface b.

An eleventh aspect of the present invention is the same tea garden management device as described above, which includes a horizontal frame 1a in the management carriage 1, both legs, and a link parallel to the horizontal frame and having both ends connected to the two legs. A parallelogram link mechanism is formed by means of which the link is movable in the left and right direction together with the management device supporting means located in the central portion of the horizontal frame, and by the left and right movement of the link, the track on an inclined track in the inter-track direction. Even if the space size changes, both legs will have a vertical line n passing through the midpoint P between the tracks.
It is swingable in a symmetrical shape with respect to the vertical direction so that the center point d of the horizontal frame 1a is located on the upper side, and the center of the management device support means is provided on the extension of the center line b ″ of the cutting surface b. Is configured to be located.

According to a twelfth aspect of the present invention, in the same tea garden management device as before, one end side of each of the pair of left and right stays of the management carriage 1 is connected to symmetrical positions of both legs, and each other end side of the horizontal frame is arranged in the left-right direction. The stays are connected to symmetrical positions in the central part, and the connecting parts of the pair of left and right stays in the central part are movable in the left-right direction together with the management device supporting means located in the central part of the horizontal frame 1a. Even if the inter-orbit dimension changes in a sloping ground in the inter-orbital direction due to the lateral movement of the connecting portion, the two legs have an intermediate point d of the horizontal frame on the extension of the vertical line n passing through the midpoint P between the orbits. The management device supporting means is configured to be swingable symmetrically with respect to the vertical direction so as to be positioned, and the center of the management device supporting means can be positioned on an extension of the center line b ″ of the cutting surface b. And, the both legs are constructed with their respective legs. The upper portions of both the front and rear columns are connected to the front and rear ends of the horizontal frame 1a so as to be rotatable in the orbital axis direction, and a means for correcting the column inclination is interposed between the horizontal frame and the front and rear columns. Both of the columns are installed so that the columns can be maintained in a vertical posture even on a sloping ground in the track axis direction by the column inclination correcting means.

In a thirteenth aspect of the invention as well, in the same tea garden management device as described above, a leg inclination correcting means is installed via the horizontal frame 1a of the management carriage 1 and both legs, and a central portion of the horizontal frame is provided. The control device supporting means located at is swingable at the height position on the line connecting the connecting points 24, 24 on the upper portions of both legs, and the correction means changes the inter-orbit dimension on the slope in the inter-track direction. However, both legs can be oscillated symmetrically with respect to the vertical direction so that the center point d of the horizontal frame 1a is located on the vertical line n passing through the midpoint P between the tracks, and the cutting surface is The center of the management device supporting means can be located on the extension of the center line b ″ of b.

According to a fourteenth aspect of the present invention, in the same tea garden management device as before, one end side of each pair of left and right stays in the management carriage 1 is connected to symmetrical positions of both legs, and the other end sides thereof are arranged in the horizontal direction of the horizontal frame 1a. Is connected to a symmetrical position in the central part of the horizontal frame, and the management device supporting means located in the central part of the horizontal frame is horizontally mounted at a height position on the line connecting the connecting points 24, 24 on the upper part of the both legs. It can be selected to be fixed or swingable at a right angle to the frame 1a, and the connecting portion of the pair of left and right stays in the central portion of the horizontal frame 1a is the same as the management device supporting means or independently. It is possible to select whether or not there is, and by the movement of the connecting portion of the pair of stays in the right and left direction, even if the inter-track dimension changes in a slope in the inter-track direction, the both leg parts Is on the extension of the vertical line n passing through the midpoint P between the orbits It should be possible to swing symmetrically with respect to the vertical direction so that the center point d of the frame is located, and the center of the management device support means should be located on the extension of the center line b ″ of the cutting surface b. Is configured to be possible.

In the fifteenth invention, similarly to the first invention, the leg portions 1b are provided vertically downward at both left and right ends of the horizontal frame 1a, and the wheels 17 are installed at the lower end portions of the both leg portions. It has a management trolley 1 and management equipment such as a tea cutting machine 7 mounted on the management trolley, and the upper portions of the both leg portions are connected to the left and right ends of the horizontal frame so as to be rotatable in the inter-track direction. In the tea garden management device, the management carriage is configured to run by wheels on both tracks laid between the ridges on both sides of the tea ridge, and the track has a quadrangular cross-section at a right angle to the quadrangle. The four surfaces are oriented in the horizontal and vertical directions, and the piles 94 that support the tracks are driven vertically into the ground, and the management carriage 1 mediates between the horizontal frame 1a and both legs. Then, a means for correcting the inclination of the leg is installed while keeping the distance between both legs constant. Is several times greater than the width dimension of the track is the axial length of the wheels of one leg of said two legs to 1
The wide wheels 90 are about several times larger, and both leg portions can maintain a bilaterally symmetrical posture with respect to the vertical direction even if the dimension between the orbits is changed in the inter-orbital sloping ground by the leg portion inclination correcting means. It is configured.

In the sixteenth invention, similarly to the tenth invention, the leg portions 1b are provided vertically downward at both left and right ends of the horizontal frame 1a, and the wheels 17 are installed at the lower end portions of the both leg portions. It has a management trolley 1 and management equipment such as a tea cutting machine 7 mounted on the management trolley, and the upper portions of both legs are connected to the left and right ends of the horizontal frame so as to be rotatable in the inter-track direction. And
In the tea garden management device in which the both legs are configured to be swingable in a bilaterally symmetrical shape, the management cart is configured to run by wheels on both tracks laid between the ridges on both sides of the tea ridge, The cross section of the track at right angles to the axis is a quadrangle, and the four sides of the quadrangle are oriented in the horizontal and vertical directions, and the piles 94 that support the track are vertically driven. A means for correcting the inclination of the leg is installed via the horizontal frame and the two legs, and each wheel is connected to the leg so as to be rotatable in the inter-track direction. Even if the dimension between tracks changes on a sloping ground in any direction, it can swing symmetrically with respect to the vertical direction.

[0021]

The control carriage 1 of the tea plantation management device is used not only when it is used on a flat ground but also when it is used on a sloped land in the direction between the tracks even if the dimension between the tracks changes, the means for correcting the inclination of the legs. Manually or automatically, or the stay 2
By manually or automatically moving the connecting part or link in the left or right direction, or by manually or automatically adjusting the effective length of the stay, both legs of the management carriage are symmetrical with respect to the vertical direction. The shape can be maintained, and a stable load condition and stable running condition can be secured. At that time, even if the dimension between the tracks changes, the height dimension from the ground to the horizontal frame 1a of the management carriage can be kept substantially constant.

Further, the management carriage is used not only when it is used on a flat ground but also when it is used on a sloped ground in the track axis direction.
Manually or automatically actuating the means for correcting the inclination of the column, or manually or automatically moving the connecting portion or link of the stay in the front-rear direction, or manually or automatically determining the effective length of the stay. By making such adjustment, both the front and rear columns that form the leg portion 1b of the management cart can be maintained in a vertical posture, and a stable load state and a stable traveling state are secured. At that time, even if the dimension between the tracks changes, the height dimension from the ground to the horizontal frame 1a of the management carriage can be kept substantially constant.

The management carriage is used not only when it is used on a flat ground but also when it is used on a sloping ground in the inter-track direction, even if the dimension between the tracks changes, the connecting portion or link of the stay is manually or automatically operated. By moving the left and right sides in the left-right direction, the two legs are kept in a symmetrically oscillating state, and are positioned at the center of the horizontal frame 1a on the extension of the center line b ″ of the cutting surface b. The center of the device support means is located, and the cutting surface b can be uniformly cut in a symmetrical shape.

Even if a large number of piles 94 are vertically driven on a sloping ground where the dimension or inclination angle in the inter-track direction changes, the contact between the wheel and the upper surface of the track having a quadrangular cross-section can be ensured to be line contact, and Since the line contact is horizontal, there is no lateral load or bending on the track.

[0025]

EXAMPLE An example of the present invention shown in the drawings will be described below.
The tea garden management device shown in FIGS. 1 to 3 has a gate shape in which the management carriage 1 extends over both tracks 15, 15 laid in the ridges (passages) on both sides of the tea ridge, and the legs 1b, 1b wheel 17
Is configured to travel on the track 15. The management trolley 1 is assembled by using a lightweight steel section made of metal such as aluminum. Left and right legs 1 that make up the management cart 1
The upper ends of b and 1b are connected to the left and right ends of the horizontal frame 1a by pin shafts 24, and are rotatable (tiltable) in the inter-orbital direction (left and right direction in FIG. 1).

A pair of left and right equal lengths are formed at approximately intermediate positions in the height direction of the left and right legs, and symmetrically at both front and rear end faces (or either end face) of the management carriage 1. The outer ends of the stays 2 and 2 of the book are rotatably connected by a pin shaft 25, and the inner ends of the slider 3 located in the center of the horizontal frame 1a in the left-right direction (inter-track direction). Pin shafts 26 are connected to symmetrical positions. The slider 3
Can be moved up and down along a guide shaft 4 installed vertically at the center of the horizontal frame 1a. More specifically, brackets 30 and 30 are provided outwardly on the upper and lower portions of a slider installation block 29 that is vertically erected on the horizontal frame 1a, and the brackets 30 and 30 above and below the guide shaft 4 are attached to the brackets 30 and 30, respectively. The upper and lower parts are fixed and supported. The slider 3 has a bearing inside and is configured to smoothly move up and down along the guide shaft 4. The guide shaft 4 is also provided with coil springs 5 and 5 for compression on the upper and lower portions of the slider 3 in a form wound around the guide shaft 4. The upper and lower coil springs 5 and 5 are of equal length and have the same spring constant, and are installed so that the legs 1b and 1b of the management carriage 1 are balanced in a vertical posture. The upper and lower coil springs 5 and 5 respond to changes in the dimension between the orbits on both leg portions 1b,
1b is an element that exerts a restoring force to the neutral point when the slider 3 is tilted and displaced from the neutral point. However, the two leg portions 1b, 1b are constrained by a so-called slider link mechanism composed of two stays 2, 2 and a slider 3 which are symmetrically arranged and perform bilaterally symmetrical tilting (swing), so that the coil spring 5 is eliminated. However, there is no particular problem in using the management cart 1.

The stay 2 has a two-dot chain line 2'in FIG. 4A.
It is also convenient to implement it as an arched shape that curves upwards, resembling the vertical cross-sectional shape of the tea plant B, as illustrated in FIG. Alternatively, as shown in FIGS. 22A and 22B,
A short tubular connecting adapter 46 is fitted vertically on a column 1b 'which constitutes the leg 1b, and a socket 47 through which the stay 2 is inserted is rotatably installed on the upper part of the connecting adapter 46 by a pin shaft. Then, a tightening bolt 48 with a manual lever 48 'for fixing or loosening the stay 2 passed through the socket 47 is installed, and the connecting adapter 46 is fixed or loosened to the column 1b' at the lower part. A tightening bolt 49 with a manual lever 49 'is installed. Therefore, as will be described later, the height of the connecting position of the outer end portion of the stay 2 is adjusted so that the center line of the guide shaft 4 and the center line of the management device supporting means are aligned with the extension line of the center line b ″ of the cutting surface b. In order to match C with the height b ′ of the hem of the tea plant B, first turn the manual lever 48 ′ to loosen the tightening bolt 48, then turn the manual lever 49 ′ to loosen the tightening bolt 49, and then connect the connection adapter 46. Is moved up and down along the support 1b 'by a required distance, and at a predetermined position, the tightening bolt 49 is first tightened to firmly fix the connecting adapter 46 to the support 1b', and then the tightening bolt 48 is tightened. As a result, the height C of the connecting position of the outer end of the stay 2 is adjusted to the height b ′ of the hem of the tea plant B, and the stay 2 does not touch the hem of the tea plant B and damage the hem. Trying to

As shown in FIG. 2, a pair of front and rear slider installation blocks 29, 29 are integrally rigidly connected to each other by a connecting material 27, and the connecting material 27 is horizontally penetrated through the connecting material 27. It is movably installed along a plurality of guide shafts 40 installed in the inter-orbital direction in an arrangement parallel to the frame 1a. Both ends of the guide shaft 40 are fixedly supported by left and right support frames 41, 41 fixedly provided on the horizontal frame 1a. Left and right support frames 41, 4
In addition, both ends of the feed screw shaft 43 are rotatably supported in a parallel arrangement with the guide shaft 40, and the feed screw shaft 43 is screwed into a sleeve nut 44 provided on the connecting member 27 so as to penetrate therethrough. There is. The feed screw shaft 43
The drive motor 45 is provided with a feed motor 45 equipped with a speed reducer for rotationally driving the feed screw shaft 43 outside one of the support frames 41 and controlled by turning it on or off, or On the side opposite to the position, a manual rotation shaft 36 connected in series to one end of the feed screw shaft 43 is installed up to the end position of the horizontal frame 1a, and a handle 37 for manual rotation is provided at the end.
Depends on whether is installed.

On a flat ground as shown in FIG. 4A, a pair of left and right sides can be used for a change in which the inter-orbital dimension becomes narrower as a 'than the standard inter-orbital dimension a or conversely becomes wider as a ". Slider 3 at the central position, which is the connecting portion of stays 2 and 2
Moves up and down along a vertical guide shaft 4, and both legs 1b and 1b respond by swinging (tilting) symmetrically with respect to the vertical direction (line n), and passing vertically through a midpoint P between the tracks. Line n
Passes through the center point d of the horizontal frame 1a. Then, the horizontal frame 1a maintains a state in which it is parallel to the ground at a substantially constant height above the ground.

As shown in FIG. 4B, when used on a sloping ground in the inter-orbital direction S, and when the inter-orbital dimension is equal to the horizontal frame 1a with respect to the inter-orbital direction S, a pair of left and right stays 2,
The slider 3 as the connecting portion of 2 is moved in the left-right direction (direction between tracks) by a dimension m to the left of the center point d of the horizontal frame 1a. As a result, the legs 1b, 1b maintain their postures in the vertical direction (line n), and the horizontal frame 1a is parallel to the inclined ground and maintains a substantially constant height on the ground. The center point d of the horizontal frame 1a is located on the vertical line n passing through the midpoint p between the tracks, and the center line of the guide shaft 4 is located on the extension line of the center line b ″ of the tea cutting surface b of the tea plant B, That is, the center lines of the management device supporting means described later coincide with each other.

As shown in FIG. 4C, when it is used on a sloping land in the inter-orbit direction and the inter-orbit dimension changes in the inter-orbit direction S narrower or wider than the horizontal frame 1a, the above-mentioned FIG.
The slider 3 in the left-right direction shown in FIG.
By the lifting and lowering operation of the slider 3 shown in FIG.
1b swings symmetrically with respect to the vertical direction, while maintaining the symmetrical shape with respect to the vertical direction (line n).
Is located at a substantially constant height on the ground and maintains a posture substantially parallel to the inclined ground. The center point d of the horizontal frame 1a is located on the vertical line n passing through the midpoint p between the tracks, and the center line of the guide shaft 4 substantially coincides with the extension of the center line b ″ of the cutting surface b. .

The management cart 1 shown in FIG. 1 is equipped with a tea mowing machine 7 for plucking and managing tea leaves, for example. As a means for this, the female screw block 12 of the round handle 11 is fixed in a vertical direction to a connecting member 27 to which the above-mentioned slider installation blocks 29, 29 are rigidly connected, in the central portion of the horizontal frame 1a of the management carriage 1, and the female screw block A screw shaft 13, which is screwed into the block 12 and penetrated vertically downward, is installed so as to be able to move up and down by a screw motion by rotating the round handle 11. The support arm 6 is suspended and supported by the lower part of the screw shaft 13 on the center side of the tea mower 7. That is, screw shaft 1
The center line of 3 is the center line of the management device supporting means, and the center line of the screw shaft 13 coincides with the center line of the guide shaft 4 when viewed in the direction of FIG. The outside portion of the tea mower 7 has a screw shaft 8 suspended and supported on the horizontal crosspiece 14 of the leg portion 1b, and a handle 31 can adjust the vertical position freely. The arrangement is made to follow the cutting surface b. By operating the round handle 11 and the handle 31, the positioning and adjustment of the tea mower 7 is performed. A crosspiece 1 for supporting the outer part of the tea cutting machine 7 via a screw shaft 8.
As for the position 4, the height position in the vertical direction can be adjusted by selecting the positions of a large number of pin holes 34 provided in advance in the vertical direction of the leg portion 1b at a constant pitch.

It has already been shown in FIG. 4 that both legs 1b, 1b of the management carriage 1 oscillate (tilt) symmetrically with respect to the vertical line.
Although it was described based on A, the outer portion of the tea cutting machine 7 also moves outward as the leg portions 1b, 1b are swung so that the distance between them increases, which corresponds to the cross-sectional shape of the tea plant. It is convenient because it will change. Regarding the deflection of the support arm 6,
If the length of the support arm 6 is lengthened to a certain extent, a small shake will suffice, and even if the shaker shakes, the shaker 7 also shakes when turned over to the leg 1b on the opposite side. Even if a slight amount of vertical movement occurs, the level difference that occurs when only one leg tilts as in the conventional case does not occur.

A traveling motor (geared motor) 9 is installed under each of the legs 1b and 1b of the management carriage 1, and each of them has a small generator 16 mounted on the horizontal frame 1a and a control device. It is electrically connected via. Two wheels 17 and 17 are provided at the front and rear of both legs 1b and 1b of the management trolley (or two or more are possible), respectively, with chains 32 (or belts, timing belts, etc.) at the same speed in the same direction. It is connected in series to rotate (FIG. 2). One wheel 17 and the traveling motor 9 are also connected by a chain 33 (or a belt, a timing belt, etc.), and all four wheels are driven by the motor 9 and self-propelled. Urethane is attached to the bottom of the groove of the wheel 17 to prevent the slip by increasing friction with the track 15. Therefore, by synchronously controlling the two left and right traveling motors 9, 9, the management trolley 1 is self-propelled by motor power, and there is no need to push it by hand. Moreover, since it is a front-rear wheel drive system, there is no concern that the wheels 17 slip on the track 15 and become incapable of running, and a propulsive force is reliably generated to smoothly travel. Furthermore, since it exerts a strong climbing force, it can travel on the track 15 laid on a steep slope without any trouble. This orbital tea garden is operated by remote controlling the traveling motor 9 with a remote control device, or by detecting and controlling the end of the tea ridge with a limit switch, or by controlling the traveling motor 9 with time or distance. Unmanned management equipment and automated operation are also possible.

The management cart 1 is equipped with the above-mentioned pruning machine, pruning machine or other tea mowing machine 7, and also as a cart for transporting plucked fresh leaves or a cart for spraying pesticides, for various tea garden management operations. It can be used for multiple purposes. The configurations described above are common to the other embodiments described below. (Second Embodiment) The tea plantation management apparatus shown in FIGS. 5A and 5B is used before and after the two legs of the management carriage 1 are formed, especially when used on a sloping ground inclined in the track axis direction T as illustrated in FIG. The columns 1b 'and 1b' are configured to maintain their vertical postures.

As a means therefor, the front and rear sides 2 which form both legs
The upper ends of the columns 1b ', 1b' are connected to the front and rear ends of the horizontal frame 1a by pins 24 'so as to be rotatable in the orbit axis direction. Further, both columns 1b 'and 1b' are rotatably pin-coupled to each other by a link 63 parallel to the horizontal frame 1a, so that the four members form a parallelogram link mechanism. FIG. 5A is on the horizontal frame 1a.
The bearing 50 having a concave shape is fixedly installed when viewed in the direction of
A feed screw shaft 51 whose both ends are rotatably supported by the bearing base 50 in a horizontal arrangement in the direction of the track axis is screwed into and penetrates a sleeve nut 53 of a slider installation block 52. Therefore, the slider installation block 52 is moved in the track axis direction (the front-back direction in which the management carriage 1 travels) on the bearing base 50 as the feed screw shaft 51 rotates. The feed screw shaft 51 is driven by a feed motor 54 installed on the side of the bearing base 50 by directly connecting an output shaft 54a to one end thereof.
Of the feed screw shaft 51 is connected to the other end side of the feed screw shaft 51, and a manual rotation shaft 55 provided long to one end position of the horizontal frame 1a is manually rotated by a manual handle 56. . The rotation of the feed screw 51 is performed in the same direction to a feed screw shaft (not shown) installed at the other end position on the other side of the horizontal frame 1a through a chain 58 wound around a sprocket 57 installed at one end thereof. It is transmitted at the same speed.

A guide shaft 59 is vertically installed on the outer surface of the slider installation block 52 with its upper and lower ends fixedly supported, and a slider 60 is installed which moves up and down along the guide shaft 59. Above and below the slider 60, a urethane rubber sleeve 61 (however, for elastically restricting the excessive vertical movement of the slider 60)
A coil spring for compression or the like is also possible) installed on the guide shaft 59. The stay 2 has one end (or both) of the slider 60 at one end and the other end of the front and rear columns 1b 'constituting the leg portion 1b.
4'is appropriately connected to a position appropriately below in the orbital axis direction by a pin so as to be freely pivotable, thereby constituting a strut inclination correcting means. When a pair of front and rear stays 62 is used, the connecting positions of both ends of each stay and the sliders or columns are symmetrical.

Due to the above-mentioned structure, when this tea plantation management apparatus is used on a sloped land in the orbit axis direction as shown in FIG. 6,
The operator manually rotates the handle 56 or turns on the control box as the amount of division corresponding to the inclination degree.
The OFF operation controls the feed motor 54 to automatically move the slider installation block 52 by an appropriate amount in the front-rear direction. Then, the link mechanism operation of the stay 62 according to the displacement amount of the slider installation block 52 changes the angles of the columns 1b in front of and behind the legs 1b with respect to the horizontal frame 1a, and as a result, as shown in FIG. Both columns 1b 'and 1b' maintain their vertical postures, so that the stability of the load state and the stability of the running state can be obtained.

(Third Embodiment) In the tea garden management apparatus schematically shown in FIG. 7A, as described above with reference to FIGS. 1 to 3, both legs 1b and 1b of the management carriage 1 are provided. A structure capable of maintaining a vertical posture even on an inclined land in the inter-orbit direction, and the front and rear columns 1b 'and 1b' forming the leg portion 1b as described above with reference to FIGS. Also has a configuration capable of maintaining a vertical posture. Further, as the wheels at the lower ends of both legs 1b, in addition to the track wheel 17 running on the track 15, when the track wheel 17 goes down the track, a grounding wheel 65 that runs on the ground instead is used together. It is configured.

Regarding the structure of the wheel portion, reference is made to, for example, the one described in Japanese Patent Application No. 3-3264. That is, a wheel mounting frame 66 is provided in the front-rear direction of the lower end portions of the both leg portions 1b, 1b, and a bearing 67 previously provided in the front and rear positions of the wheel mounting frame 66 is attached to a vertical direction from a yoke-type wheel support base 68. A steering shaft 69 provided upward is rotatably supported. As shown in detail in FIG. 7B, a horizontal wheel rotatably supported by the wheel support base 68 is commonly used, and a track wheel 17 is provided on the inner side and has a diameter considerably larger than that of the track wheel 17 on the outer side. Grounding wheels (rubber tire wheels) 65 are attached so as to be adjacent to each other. 7A and 7B, the illustration of the wheel rotation drive mechanism is omitted, but if necessary, the drive motor drive mechanism described with reference to FIGS. 1 and 2 may be employed in exactly the same manner. In FIGS. 7A and 7B, a lever 70 is provided on the steering shaft 69 in a direction perpendicular to the axis, and isometric positions of the levers 70 of the front and rear steering shafts 69 are connected by a steering bar 71. A steering mechanism that turns the front and rear steering shafts in a common direction at an equal angle is configured. An operation drive device 72 that moves the operation bar 71 in the front-back direction and steers the operation bar 71 is installed at an intermediate position of the wheel mounting frame 66. The operation drive device 72 incorporates an automatic (or manual type by manual operation) mechanism element using an operation motor as a power source.

Therefore, when the leg wheels 1b and 1b travel on an orbit on the sloping ground in the direction between the orbits by the orbital wheels 17, the legs 1b and 1b sequentially maintain a symmetrical shape with respect to the vertical direction as shown in FIGS. 4A, 4B and 4C. When it moves on the ground in the inter-track direction by the grounding wheel 65 for the ridge-to-ridge movement, the posture in the vertical direction is maintained as shown in FIG. 8 and the load condition is stable in any case. And stability of running condition can be obtained. At the same time, when traveling on the track by the track wheels 17 at the same time in the direction of the track axis, the two columns 1
b ′ and 1b ′ maintain the vertical posture, and can obtain the stability of the load state and the stability of the running state.

(Fourth Embodiment) Most of the basics of the structure of the tea garden management apparatus shown in FIGS. However, the horizontal connecting member 27 'supporting the rotary shaft portion (female screw block) 12 of the round handle 11 is the horizontal frame 1a.
Auxiliary frame body 7 that is fixed to both front and rear ends and stands vertically upward
It is configured to be rigidly connected horizontally to 5,75.

Therefore, by rotating the round handle 11, the screw shaft 13 can be moved up and down, and the height of the tea mower (see FIG. 1) supported on the lower end of the screw shaft 13 can be adjusted. However, the position of the center line of the management device supporting means is immovable. On the other hand, a pair of left and right stays 2, 2
The guide shaft 4 of the slider 3 in which each inner end of the slider 3 is connected in a symmetrical position is vertically installed with the upper and lower ends fixed to the outer surface of the slider installation block 76. The slider installation block 76 is fixed to both outer side portions of the auxiliary frame body 75, and is provided on a bearing stand 77 having a concave shape when viewed in the direction of FIG. 9A. It is installed so that it can be moved (slipped) in the left-right direction through. Then, the feed screw shaft 78 whose both ends are rotatably supported by the bearing bases 77, 77 in a horizontal arrangement in the left-right direction (inter-orbital direction) is screwed into a sleeve nut previously provided in the slider installation block 76. It is penetrated.
Therefore, by automatically rotating the feed screw shaft 78 by the feed motor 45 or manually rotating the manual rotation shaft 36 by the handle 37, the position of the slider 3 which is the connecting portion of the pair of left and right stays can be changed. It can be moved in the left-right direction (orbital axis direction). Therefore, when it is used on a flat ground as shown in FIG. 4A and the dimension between tracks changes greatly (see the state of two-dot chain line), or when it is used on a sloped land in the direction between tracks as shown in FIG. Even when the above two conditions are combined, as described above, the two leg portions 1b, 1b of the management carriage 1 are always swingable while maintaining a symmetrical shape with respect to the vertical direction. Stable state of
A stable running condition can be secured.

(Fifth Embodiment) In the tea garden management apparatus shown in FIGS. 10A and 10B, the pair of left and right stays 2 and 2 are arranged in parallel with the horizontal frame 1a, so that the horizontal frame 1a and both legs 1b, 1b
And the stays 2 and 2 form a substantially parallelogram link mechanism. As a means thereof, a concave bearing stand 80 is fixedly provided on the horizontal frame 1a at a central portion near one end in the front-rear direction (orbital axis direction) as viewed in the direction of FIG. 10A. Both ends of a feed screw shaft 81 arranged horizontally in the intermediate direction are rotatably supported by the bearing base 80, and are rotationally driven by a feed motor 45. The feed screw shaft 81 is screwed into and penetrates the female screw hole of the slide block 83. Therefore, the slide block 83 moves (slides) on the bearing base 80 in the left-right direction (inter-orbital direction) by the screw movement as the feed screw shaft 81 is rotated by the feed motor 45. From both ends of the slide block 83, support arms 83a, 83a extending in an inverted L shape toward the lower outside of the horizontal frame 1a are provided, and the support arms 83a, 83a are provided between the tip ends of the pair of support arms in the left-right direction (inter-track direction). 2), both ends of the guide shaft 84 are supported horizontally (hence, parallel to the feed screw shaft 81).

The pair of left and right stays 2 and 2 having the same length have one end rotatably connected to the left and right symmetrical positions of the legs 1b, 1b by a pin, and the other end along the guide shaft 84. It is joined to the sliding end fittings 85 and arranged in parallel with the horizontal frame 1a. On both sides of the end fitting 85, two equal-length, equal-constant-compression-compression-coil springs 86, one side of which is fixed to the support arm 83a or the central stopper 87, are wound around the guide shaft 84. It is installed in a shape.

Therefore, for example, when used on a flat ground as shown in FIG. 4A and the inter-orbital dimension changes greatly, the left and right stays 2 and 2 have their end fittings 85 from the neutral position to one of the coil springs 86 on both sides thereof. One of the legs is compressed and displaced, and the two legs 1b and 1b oscillate (tilt) by expanding or narrowing in a symmetrical shape with respect to the vertical direction. When the vehicle is used on an inclined land in the inter-orbital direction as shown in FIG. 4B, the feed motor 45 is drive-controlled according to the inclination, and the slide block 83 is slid from the neutral position to the left and right. Then, the parallelogram link mechanism operates as the slide block 83.
10A is deformed from the rectangular shape of FIG. 10A to a rhombus shape, and both legs 1b and 1b are always swingable while maintaining a bilaterally symmetrical shape with respect to the vertical direction, a stable load state, and stable running. The state can be secured.

(Sixth Embodiment) In the tea garden management apparatus shown in FIGS. 11A and 11B, both legs 1b, 1b of the management trolley do not swing symmetrically in the direction of the track, and the dimension of the track does not change. The configuration is such that the width is absorbed by the length of the cylindrical wide wheel 90 that is long in the axial direction. As a means for this, the two leg portions 1b, 1b are connected at laterally symmetrical positions by a parallel link 91 having the same length as the horizontal frame 1a, so that four members are formed into a parallelogram link mechanism. One end of the stay 2 is concentrically connected to a connection point between the link 91 and the one leg portion 1b, and the other end of the stay 2 is vertically movable along a vertical guide shaft 4 on the horizontal frame 1a. It is connected with a pin. Of course,
The guide shaft 4 can be moved in the left-right direction (direction between tracks) manually or by the feed motor 45 as described in the embodiment of FIGS. Link 91
Is configured to be movable in the left-right direction. Therefore, when this tea garden management device is used on a flat ground, the parallelogram link mechanism remains in the rectangular state of FIG. 11A, but when it is used on an inter-orbital sloping ground as shown in FIG. 4B,
The guide shaft 4 is moved in the left-right direction together with the slider installation block according to the inclination of the ground. Then,
The movement amount is transmitted through the stay 2 as the movement of the link 91 in the left-right direction, the parallelogram link mechanism is deformed into a rhombus shape, and the both leg portions 1b, 1b can maintain the vertical posture, and The central point d of the horizontal frame 1a is located on the vertical line n passing through the midpoint P. Therefore, the stable state of the load and the stable state of traveling can be secured.

(Seventh Embodiment) The tea plantation management apparatus shown in FIGS. 12A and 12B is similar to the embodiment shown in FIG.
A and the legs 1b and 1b are formed into a parallelogram link mechanism by a link 91. Therefore, the two legs do not oscillate symmetrically with respect to the vertical direction with respect to the change in the dimension between the tracks, but are dealt with by the length of the wide wheel 90 long in the axial direction.

In the case of the present embodiment, a linear actuator 92 capable of adjusting the effective length of the stay 2 is adopted in the middle portion of the stay 2 as a leg inclination correcting means for moving the link 91 in the left-right direction. There is. Specifically, for example, FIG.
An actuator such as a screw type turnbuckle mechanism or a hydraulic / pneumatic cylinder / piston mechanism as shown in FIG. 6B can be adopted. One end of the stay 2 is connected to a connection point between the link 91 and the leg portion, and the other end is connected to a column 93 which is fixed to the horizontal frame 1a and stands vertically upward. Therefore, the connecting position of the stay 2 and the column 93 is fixedly fixed, and when the effective length of the stay 2 is adjusted by the actuator 92, the link 91 is immediately moved in the left-right direction by a considerable amount. As a result, the parallelogram link mechanism is deformed into a rhombus shape, and the both legs 1b, 1b can maintain the vertical posture even on a sloped land in the inter-track direction (FIG. 13).

In this embodiment, the track is also composed of a rectangular rail (rectangular pipe) 15 'having a quadrangular cross section perpendicular to the axis. In particular, the four sides of the rectangular rail 15 'are arranged in the horizontal and vertical directions, and the rectangular rail 15' is supported by the support piles 94 driven in the vertical direction on the ground even in the sloping ground shown in FIG. As a result of the rectangular rails 15 'being laid in the above-described manner, the track laying work can be carried out accurately, easily and efficiently. Not only that, as already described in many embodiments, both leg portions 1b, 1b of the management carriage are maintained in the vertical posture even on the sloped land in the inter-orbital direction (FIG. 13), so that the lower end portion of each of them is maintained. The rotation axes of the wheels 17 and 90 installed in the vehicle are kept horizontal. Therefore, the horizontal upper surface of the rectangular rail 15 'and the peripheral body surface of the wheel maintain a stable horizontal line contact, and the rectangular rail 15'
No lateral bending or bending. Therefore, the support pile 94 does not fall, the track is laterally displaced, and the lateral bending of the track does not occur, and it is possible to prevent inconveniences such as the uncut portion of the hem of the cutting surface b of the tea plant B.

(Eighth Embodiment) The tea garden management apparatus shown in FIG. 14 is an embodiment in which the parallelogram link mechanism is applied and the track is a rectangular rail, as in the embodiment shown in FIG. 12A. However, the means for correcting the leg inclination is different. In the case of this embodiment, a link 95 parallel to the horizontal frame 1a is provided on the upper side of the horizontal frame 1a, and both legs 1b, 1b are extended straight upward from the position of the connection point 24 with the horizontal frame 1a. Extension 9
6, the intersection of the extension 96 and the link 95 is
The long hole 97 provided on the extension 96 side is used to make the pin 9
The link mechanism 8 is connected with a degree of freedom that allows the deformation operation of the link mechanism. Further, the bearing plate 99 is fixedly erected on the horizontal frame 1a, and the pinion 100 having the rotation shaft supported by the bearing plate 99 has a length range required in the left-right direction of the central lower surface of the link 95. It is meshed with the rack 101 formed over. Therefore, when the pinion 100 is rotated manually or by driving a motor, the link 95 is moved in the left-right direction by a considerable amount as the meshing movement with the rack 101 progresses, and the parallelogram link mechanism is deformed into a rhombus shape. As a result, the two legs 1b and 1b maintain their vertical postures even on a sloping ground in the inter-track direction.

In this embodiment, the two leg portions 1b, 1b are
Since the interval is kept constant, the posture in the vertical direction is maintained (the left and right symmetrical shapes of both legs 1b, 1b are maintained), but the legs do not swing in the left and right symmetrical shape. This also applies to the embodiment of FIG. 11 and the embodiment of FIG. (Ninth Embodiment) The tea garden management apparatus shown in FIG. 15 is basically of the same structural type (parallelogram link mechanism) as that of the embodiment of FIG. 14 except that both legs 1b, 1b are between the tracks. In response to a change in size, it swings symmetrically with respect to the vertical direction, and therefore, the use of wide wheels is unnecessary.

As a means for this, the link 95 and the two leg portions 1
b, 1b is not directly connected to the extension 96, but the extension 96
One end of the short auxiliary link 102 is connected in parallel with the link 95, and the end fitting 103 attached at a right angle to the tip of the auxiliary link 102 is configured to move in the left-right direction along the link 95. There is. A spring receiver 104 is fixed to the link 95 at a symmetrical position in the neutral state with the end fitting 103 as an intermediate point, and for equal compression of the spring constant with equal length between each spring receiver 104 and the end fitting 103. The coil spring 105 is installed around the link 95.

Therefore, if the inter-orbit dimension changes greatly, whether it is a flat ground or a sloping ground, both legs 1b, 1b
Tilts like a lever about the connection point 24 with the horizontal frame 1a. Due to the tilting, the left and right auxiliary links 102
The end metal fitting 103 compresses one of the coil springs 105 and displaces it in the left-right direction. Oscillates symmetrically with respect to the vertical direction and responds to changes in the dimension between tracks. Therefore, the height dimension from the ground to the horizontal frame 1a hardly changes.

In the case of this embodiment, the wheels of both legs are the roller wheels 110 having the same axial length as the width of the upper surface of the rectangular rail 15 'and a simple columnar shape without a collar. A rectangular rail 1 is attached to the yoke type support 111 of the wheel.
Auxiliary wheels 112 having vertical rotation shafts are provided so as to sandwich both inner and outer side surfaces of the 5'to prevent wheel loss and ensure stable running. The lower end of the leg 1b and the yoke type support 111 are connected by a pin 113 so that the legs 1b, 1b can pivot in the inter-orbital direction so that the legs 1b, 1b can swing in the above-mentioned left-right symmetrical shape. ing.

(Tenth Embodiment) The tea garden management apparatus shown in FIG. 16A has basically the same structure as that of the embodiment shown in FIG. 9, and both legs 1b and 1b of the management carriage have inter-track dimensions. Although it swings symmetrically with respect to the vertical direction in response to a change in size, the pair of left and right stays 2, 2 is provided with a length adjusting mechanism 120 at an intermediate portion thereof, and the effective length of the stay is adjusted between the tracks. Even on a sloping ground in both directions, both legs 1b, 1b can swing in a symmetrical shape with respect to the vertical direction. Although various known linear expansion / contraction mechanisms can be adopted as the length adjusting mechanism 120, FIG. 16B shows a structure using a known turnbuckle mechanism. One stay 2 made of pipe material is divided into two in the middle part, and sleeve nuts 121 and 122, which have a left-hand thread and a right-hand thread with the same spiral direction, are screwed in the axial direction and integrated into each end. Is firmly fixed. On the other hand, at the intermediate point, the lever 1 for manual rotation
The length adjusting bolt has a shaft 23 on both sides thereof and has substantially the same length, and a male screw having the same specifications as the female screw of the sleeve nuts 121 and 122 is formed on each shaft as a left screw 124 and a right screw 125. Are prepared, and the male threads are equally screwed into the corresponding sleeve nuts 121 and 122. Further, the lock nut 126 is also used.

Therefore, when each lock nut 126 is turned to be loosened, and then the length adjusting bolt is turned in the forward or reverse direction by the handle 123, a series of shafts common to the two stays separated by the screw motion. Expansion and contraction (adjustment of length) is carried out on and off the line. When traveling on a flat ground as shown in FIG. 16A, the posture of the control carriage is in a neutral state, so to speak, and the guide shaft 4 is located at the center point of the horizontal frame 1a.
The pair of left and right stays 2, 2 have the same length, and the effective lengths a _{1 of} the respective length adjusting mechanisms 120 are also the same. However, when it is used on a sloped land in the inter-orbital direction as shown in FIG. 16C, the length adjustment mechanism 120 on the left side (lower side) extends its effective length to a ₂ according to the inclination degree, and conversely on the right side. The (higher side) length adjusting mechanism 120 determines the effective length by a ₃
To shorten. As a result, in FIG. 16C, the positions of the slider 3 and the guide shaft 4 that are the connecting portions of the pair of left and right stays are moved to the right (higher side) at the same time, and the legs 1b and 1b of the management carriage are vertically moved. On the other hand, it can swing freely while maintaining a symmetrical shape. Naturally, the center point d of the horizontal frame 1a is located on the extension of the vertical line n passing through the midpoint P of the dimension between the tracks.

(Eleventh Embodiment) The tea plantation management apparatus shown in FIGS. 17A and 17B also has a structure similar to that of the embodiment of FIG. 16, but the length adjusting mechanism 130 for the pair of left and right stays 2 and 2 is used. Is characterized in that it is automatically operated by the adjusting motor 131. As a means for this, a slider 133 that is vertically movable along the guide shaft 4 is installed on the outer surface of a slider installation block 132 that supports the vertical upper and lower ends of the guide shaft 4 and is movable in the left and right directions. The slider 133 is provided with a worm wheel 134 having a horizontal rotation axis in the inter-orbital direction, and the universal joint 13 is provided at the symmetrical end positions of the rotation axis.
The left and right length adjusting screw shafts 136 and 137 are connected by 5. The left and right length adjusting screw shafts 136, 1
A male screw having the same screw relation is formed as a right screw or a left screw on the screw 37, and each screw shaft is screwed into a sleeve nut fixedly attached to the inner end portion of the corresponding stay 2 by an appropriate length. The outer ends of the pair of left and right stays 2 and 2 are connected to the left and right symmetric positions of both leg portions 1b and 1b by pins. The worm wheel 134 has a worm 13 rotatably driven by an adjusting motor 131 installed on a slider 133.
8 is meshed.

Therefore, this tea garden management apparatus is shown in FIG. 4B or C.
When the vehicle is used on a sloped land in the inter-orbital direction as described above, the adjustment motor 131 is drive-controlled according to the inclination, and the left and right length adjusting screw shafts 136 are accompanied by the rotation of the worm wheel 134 and its rotating shaft. , 137 are rotated in the common direction at the same speed. However, since the screw shaft has the same screw relationship as the left screw or the right screw, one of the screw shafts (higher side) is gradually screwed in by the screw movement of the stay 2 with the sleeve nut, and the effective length of the stay becomes longer. The screw shaft on the other side (lower side) is shortened, and the effective length of the stay is extended. As a result, the two legs 1b, 1b can swing while maintaining a symmetrical shape with respect to the vertical direction.

(Twelfth Embodiment) In the tea garden management apparatus shown in FIGS. 18A to 18C, as in the embodiment of FIG. 16, both legs 1b, 1b of the management carriage respond to a change in the dimension between the tracks in the vertical direction. The left and right stays 2 and 2 swing symmetrically with respect to each other, and the left and right stays 2 and 2 are provided with a length adjusting mechanism at an intermediate portion thereof. Can swing symmetrically with respect to the vertical direction, but its specific means is different.

As a means thereof, the pair of left and right stays has a round pipe 14 having an intermediate portion connected to a screw shaft 140 for length adjustment.
2 and a square pipe 141, the outer end of the round pipe 142 is connected to the extension portion 96 of the leg 1b through the stay support 143, and the inner end side is provided with the horizontal frame 1
A bearing base 144 fixedly provided on a is movably supported in the left-right direction end in the axial direction (left-right direction). At the inner ends of the left and right round pipes 142, a length adjusting screw shaft 14 having the same screw relationship as a left screw or a right screw
One end of 0 is fixed and joined in series so as to integrally rotate on the same center line. On the other hand, the same bearing stand 144
A square pipe 141 is supported in a central portion of the above in a series of arrangements on a center line common to the round pipe 142 and the screw shaft 140 so as not to rotate but to be movable in the axial direction.
The left and right screw shafts 140 are attached to the square pipe 14
Equal lengths are screwed into sleeve nuts secured to both ends of the 1. As a means for rotating the round pipe 142, a sprocket 145 that transmits the rotation by a structure such as a key or a spline to the round pipe 142 is a bearing stand 144.
Is rotatably supported on the same bearing stand 144 and is rotatably supported in parallel with the stay by a sprocket 147 of a rotary shaft 146 and a chain 148. It is designed to be rotated. That is, the pair of left and right round pipes 142 and the screw shaft 140 are rotated in the common direction at the same speed by the motor 149. However, the left and right screw shafts 14
Since 0 has the same screw relationship as a left screw or a right screw, for example, the left screw shaft (right screw) gradually comes out of the square pipe 141 according to the forward and reverse of the rotation direction of the motor 149, and becomes a stay. While the effective length is extended, conversely, the right screw shaft (right screw) is gradually screwed into the square pipe 141 at the same speed, and the effective length as a stay is shortened.

By the way, end fittings 150 are attached at right angles to the inner ends of the left and right square pipes 141, and the end fittings 150 are also parallel to the square pipes between the bearing stands 144 supporting the square pipes 141. In this arrangement, both ends are fixed and the guide shaft 151 slides along the supported guide shaft 151. Between the stopper 152 and the bearing stand 144 fixedly installed at the middle point of the guide shaft 151 on both sides of each of the end fittings 150, and the end fitting 150,
A compression coil spring 153 having the same length and the same spring constant is installed around the guide shaft 151.

Therefore, when the length adjusting motor 149 rotates the round pipe 142 to extend the effective length of the left stay as described above, the left round pipe 142 is eventually expanded.
The left leg portion 1b connected to is tilted (swinged) in the counterclockwise direction by lever action with the position of the pin 24 as a fulcrum. Conversely, when the effective length of the right stay is shortened, the right leg 1b connected to the right round pipe 142 is also tilted (swinged) in the counterclockwise direction about the pin 24 as a fulcrum. . Thus, the left and right legs 1b, 1b tilt exactly the same, and for example, on a slope in the inter-orbit direction as shown in FIG. 16C, it is possible to maintain the vertical posture by one control of the motor 149. Of course, whether on flat or sloping ground,
When the dimension between the orbits changes, the total is 4 symmetrically.
In response to each coil spring 153 symmetrically balancing the forces, both legs 1b, 1b tilt (swing) in a symmetrical shape about the pin 24.

Incidentally, the stay supporting device which mediates the connection with the round pipe 142 in order to absorb the displacement component in the height direction at the time of tilting with the pin 24 as the fulcrum of the both legs 1b, 1b. The 143 has a mechanism capable of sliding in the height direction. (Thirteenth Embodiment) The tea plantation management apparatus shown in FIGS. 19A to 19C has the same structural type as that of the embodiment shown in FIG. The parts 1b, 1b respond with a rocking of a symmetrical shape with respect to the vertical direction. Further, even when the dimension between the orbits changes in magnitude in the sloping ground in the direction between the orbits, it is configured to respond similarly (see FIG. 20).

Much of the detailed explanation is given to the explanation of FIG. 9, and only the summary is given below. A slider 3 in which one end of a pair of left and right stays 2, 2 is connected in a bilaterally symmetrical position is vertically movable along a vertical guide shaft 4. A coil spring 5 for compression is installed along the guide shaft 4 above and below the slider 3 so as to be wound around the guide shaft, and the position of the slider is restricted by the action of the coil spring.
The slider installation blocks 76 supporting the upper and lower ends of the guide shaft 4 are movable in the left-right direction (inter-track direction) on the horizontal frame 1a by a manual or motor-driven method.

This embodiment is different from the embodiment of FIG. 9 in the case where the chord B ′ of the tea cutting surface b of the tea plant B cultivated on the sloped land in the direction of the orbit is horizontal as shown in FIG. As a means to prevent the tea mower from cutting evenly on the left and right and to prevent leftovers from being cut off at the hem, the support points of the center side support device of the tea mower are the center points on the left, right, front and rear of the horizontal frame 1a. It is also characterized in that it is rotatably installed at the same height as the pin 24 connecting the two legs 1b, 1b and the horizontal frame 1a.

Specifically, the central portion of the frame 160, which rotatably supports the vertical feed screw shaft 13 for supporting the tea mower rotated by the round handle 11, is horizontal in the front-rear direction of the management carriage. The swing shaft 161 is rotatably installed on the horizontal frame 1a. The frame 160 is a horizontal frame 1
Stable rotation is performed along a flat plate-shaped guide plate 162 provided vertically downward from a. Therefore, even when the legs 1b, 1b of the management vehicle are maintained in the vertical posture even on the sloping ground in the inter-track direction as shown in FIG. 20, the frame 160 is rotated about the swing shaft 161. ,
The feed screw shaft 13 can also be maintained in the vertical direction. The feed screw shaft 13 has a bracket 164 that slides stably with the inner surface of the guide plate 162 as a slide surface.
Is screwed to the base of. The bracket 164 is moved up and down by rotating the feed screw shaft 13 with the round handle 11. The bracket 164 is projected substantially horizontally toward the center point of the horizontal frame 1a, and at the tip of the bracket 164 at the center point of the horizontal frame 1a, a mounting tool 165 (with a lever) of the cutting machine is attached. Bolts) are installed vertically downward. Reference numeral 166 in FIG. 19B is a long groove for a fixture for supporting the outer side portion of the mower so that it can be raised and lowered.

(Fourteenth Embodiment) The tea plantation management apparatus shown in FIGS. 21A to 21C has the same structure as that of the embodiment shown in FIG. 9 and the embodiment shown in FIG. Responding to the change, the slider 3 is moved up and down and the two legs 1b and 1b are rocked symmetrically with respect to the vertical direction. Further, even when the dimension between the orbits changes on a sloped land in the direction between the orbits, it is configured to respond similarly. The detailed structure and description therefor are similar to those of the embodiment of FIG. 9 and the embodiment of FIG.

This embodiment further includes the embodiment of FIG. 9 and FIG.
Unlike the embodiment of FIG. 9, the chord B ′ of the tea cutting surface of the tea plant B cultivated on a sloped land in the direction of the orbit as shown in FIG. 4B or C, for example.
Is parallel to the sloping ground, the screw shaft 13 for supporting the mower is integrated with the guide shaft 4 in the left-right direction (inter-orbit direction) as in the embodiment of FIG. ), But when the chord B ′ of the cutting surface b is cultivated in the horizontal direction regardless of the inclined ground as shown in FIG. The integral relationship with the shaft 4 is released, and the horizontal frame 1a is located at the center point of the horizontal frame 1a as in the embodiment of FIG.
The screw shaft 13 is configured to be rotatable at the same height position as the pin 24 connecting the two legs 1b and 1b with each other and to be oriented parallel to the vertical line (see FIG. 20). The selective use of is possible.

As a means for this, a frame 17 for installing the slider installation block 170 and the screw shaft 13 for supporting the cutting machine in the left-right direction (direction between tracks) within the plane of the horizontal frame 1a.
1 is provided with a common guide rail 172. The slider installation block 170 is installed such that the inside thereof is guided by the guide rail 172 and is moved in the left-right direction by the rotation of the feed screw shaft 173 arranged in parallel with the guide rail 172. The guide shaft 4 is vertically supported by fixing the upper and lower ends thereof to the outer surface of the slider installation block 170.
The slider 3 is installed to be movable up and down. The feed screw shaft 173 is rotationally driven by a feed motor 174 with a speed reducer. On the other hand, the frame 171 on which the screw shaft 13 is installed has one side guided by the guide rail 172 for sliding movement, and the other side supported by a feed screw shaft 175 arranged in parallel with the guide rail 172.
In addition, the feed screw shaft 175 is rotated to move in the left-right direction. The two parallel feed screw shafts 173 and 175 connect the sprockets 173a and 175a having the same number of teeth attached to their respective ends with a chain 176, and are fed by the feed motor 174 at the same speed in a common direction. It is configured to be rotationally driven. However, the sprocket 175a is attached to the feed screw shaft 175 on the side supporting the tea mower.
A clutch 177 is installed at an intermediate portion between the feed screw shaft 175 and the feed screw shaft 175 by the on / off control of the clutch 177.
Can be rotated or not rotated by the feed motor 174. In connection with the above selection, the slider mounting block 170 and the frame 17
Although not specifically shown in the drawings, 1 also has a relationship in which the respective adjacent and adjacent portions are connected by, for example, an insert pin to move integrally, or the insert pin is pulled out to separate the two. The frame 171 is configured so that the position of the frame 171 can be kept fixed.

Next, the screw shaft 13 for supporting the tea mower.
Is vertically threaded through the center of the sphere of the ball joint 178 supported by the frame 171, and is installed so that its position is located at the center point of the horizontal frame 1a in the left-right direction and the front-back direction in the standard state. The rotary handle 11 is rotated to move up and down. The ball joint 178 has its ball center position at the same height as the pin 24 connecting the two leg portions 1b of the management carriage to the horizontal frame 1a. The globe (or socket) member of the ball joint 178 is configured such that the ball can be fixedly fixed by the tightening or loosening operation of the tightening bolt 179 or can be rotated. Therefore, when the tea plant B is used in a tea plant in which the tea plant B is cultivated with the chord B ′ of the tea cutting surface b parallel to the inclined ground in the inter-orbit direction as shown in FIGS. Is fixed in a direction parallel to the guide shaft 4, and the slider installation block 170 and the frame 171 are used by selecting a condition in which the slider installation block 170 and the frame 171 move in the left-right direction in an integrated relationship. However, as shown in FIG. 20, when the string B ′ of the cutting surface b is used in a tea garden that is cultivated in the horizontal direction regardless of whether the ground is inclined or not, the relationship between the slider installation block 170 and the frame 171 should be set. Unscrew, screw shaft 13 is horizontal frame 1a
The screw shaft 13 is positioned at the center point of the position, the tightening bolt 179 is further loosened, and the screw shaft 13 is used by selecting a condition for maintaining the vertical posture parallel to the leg portions 1b.

Reference numeral 180 in FIG. 21B indicates the screw shaft 13.
Is a fixture (nut with a lever) for supporting the tea mower provided at the lower end of the tea mower. Incidentally, FIG. 9 to FIG.
Although the respective embodiments up to this point have been shown and described with a configuration applied to a sloping ground in the inter-orbital direction, the structural type is applied to a sloping ground in the track axis direction as already described in the second embodiment. It is also possible to apply and implement the structure for maintaining both the columns forming the legs in the vertical posture. Further, it can be applied to a three-dimensional sloping ground inclined in the inter-orbital direction and the orbital axis direction, for example, in the manner described in the third embodiment.

[0073]

The effects of the present invention are as follows:
In summary, the following effects are achieved. Management trolley 1 when used on sloping ground in the direction between tracks
Since both leg portions 1b, 1b maintain the symmetrical shape with respect to the vertical direction even on the sloping ground, the risk of the management cart falling over can be eliminated in advance, and stable and swift traveling is enabled. The same applies to the use on a sloped land along the track axis and a three-dimensional sloped ground. As a tea plantation management device, the management carriage is configured to run on both tracks between the ridges, and a leg or (and) a post inclination correcting means is provided between the horizontal frame and the leg or (and) the post. Since it was installed, not to mention when using it on a flat ground,
When used on slopes in the inter-orbital direction and / or the orbital axis direction, and for changes in the inter-orbital dimensions,
Furthermore, regardless of the hardness or softness of the furrow ground, whether or not the gravel stones are large or small, or the above matters are mixed, therefore, regardless of the ground conditions, the horizontal frame 1a and the ground are always connected. Since the interval (height dimension) between them can be kept almost constant, and the required tea-cutting work can be performed at a constant height from the ground, the quality of tea leaves can be maintained and improved. Assuming the above contents as a precondition, both the legs of the management carriage are required not only when used on a flat ground but also when used on a sloping ground and when the dimension between tracks is changed. It is possible to swing symmetrically with respect to the vertical direction so that the horizontal center point d of the horizontal frame 1a is located on the extension of the vertical line n that passes through the midpoint of the dimension between the tracks.
Furthermore, since the center of the management device supporting means located in the center of the horizontal frame is located on the extension of the center line b ″ of the tea cutting surface b passing through the center of the tea plant B, the trunk can As it passes through, the tea-cutting surface can always be trimmed to a symmetrical shape and even quality on the left and right sides. It produces the effects of (1) and (2).

(1) Since it is possible to mow old leaves, stems and the like without leaving uncut residue on both hems of the tea mowing surface, it is possible to efficiently and efficiently obtain high quality tea leaves of constant quality.
High yields can be harvested. (2) In the case of a single-sided mowing tea-mower, it is only necessary to re-suspend the supporting screw shaft on the leg side to the same position on the other leg part when reversing the right and left at the ridge end. When the cross section perpendicular to the axis of the track is a quadrangle, when applied to not only flat ground but also sloped in the inter-track direction and its tilt angle changes or the inter-track size changes, Even if a large number of support piles 94 that support the track are always driven vertically, point contact between the upper surface of the track and each wheel is avoided, and the line contact state is always maintained to ensure a stable load and running state of the tea garden management device. Can be maintained. And
Workability and accuracy (track straightness) in track laying work centered on pile driving can be improved. In addition, the line contact between the upper surface of the track and each wheel is horizontal even on the sloping ground in the inter-track direction, and the lateral load or bending does not act on the track even during work such as tea cutting, so long-term use is possible. Also in the case of (1), it is possible to prevent the support pile from tilting or bending. It is less likely that the wheel drive installed near the wheels on the legs will touch the hem of the tea plant and damage it. Due to work convenience, it is easy for a person to pass by the side of the management carriage in the front-rear direction along the passage between the ridges.

[Brief description of drawings]

FIG. 1 is a front view showing a tea garden management apparatus according to a first embodiment of the present invention.

FIG. 2 is a side view of the tea garden management device of the above.

FIG. 3 is a plan view of the tea garden management device of the above.

FIG. 4A is a conceptual diagram showing an operation of the above-mentioned management carriage in flat ground responding to a change in inter-track dimension, B is a conceptual diagram showing operation on a sloping land in an inter-track direction, and C is an inter-track direction. It is a conceptual diagram which showed operation | movement when the dimension between tracks changes in a sloping ground.

5A and 5B are a side view showing a management carriage of a second embodiment and a plan view with a part omitted.

[Fig. 6] Fig. 6 is a conceptual diagram showing an operation of the above-described management cart on a sloped land in the track axis direction.

FIG. 7A is a perspective view conceptually showing the structure of the management cart of the third embodiment, and B is a front view showing the structure of the wheel portion.

[Fig. 8] Fig. 8 is a conceptual diagram showing an operation of the management trolley on the sloped ground in the track axis direction.

9A, 9B and 9C are a front view, a side view, and a plan view showing a management carriage of a fourth embodiment.

10A and 10B are a front view and a side view showing a management cart of a fifth embodiment.

11A and 11B are a front view and a side view conceptually showing a management carriage of the sixth embodiment.

12A and 12B are a front view and a side view conceptually showing a management vehicle of a seventh embodiment.

FIG. 13 is a front view conceptually showing the operation of the management trolley on the sloping ground in the inter-track direction.

FIG. 14 is a front view showing a management carriage of an eighth embodiment.

FIG. 15 is a front view showing a management carriage of a ninth embodiment.

16A is a front view conceptually showing the management cart of the 10th embodiment, and FIG. 16B is a sectional view showing a stay length adjusting mechanism.
FIG. 7C is a front view conceptually showing the operation of the management carriage on the slope in the inter-track direction.

17A and 17B are a front view and a side view showing a management cart of an eleventh embodiment.

18A to 18C are a front view, a side view, and a plan view showing a management carriage of a twelfth embodiment.

19A to 19C are a front view, a side view, and a plan view showing a management carriage according to a thirteenth embodiment.

FIG. 20 is a front view conceptually showing an operating state of the management truck on the sloped ground in the inter-orbit direction.

21A to 21C are a front view, a side view, and a plan view showing a management carriage according to a fourteenth embodiment.

22A and 22B are a front view and a side view showing a structure for adjusting a mounting position of a stay.

23A and 23B are front views conceptually showing an operation state of a management carriage of a conventional tea garden management device on an inclined land in an inter-track direction.

[Explanation of symbols]

 1a Horizontal frame 1b Legs 17 Wheels 1 Management trolley 7 Tea cutting machine 15 Track 2 Stays 3 Slider 92 Actuator (length adjustment mechanism) 120 Length adjustment mechanism 91 links 95 links 63 links 1b 'Struts p Center point between tracks n Vertical line d Central point of horizontal frame b Tea cutting surface b ″ Center line 13 Screw shaft for supporting the mower 94 Support pile 90 Wide wheel

Claims (16)

[Claims] 1. A management trolley in which legs are provided vertically downward at the left and right ends of a horizontal frame, and wheels are installed at the lower ends of the legs, and a lawnmower mounted on the management trolley and the like. In the tea garden management device, which has a management device, and the upper parts of the both legs are rotatably connected to the left and right ends of the horizontal frame in the inter-track direction, It is configured to run on both tracks that have been laid by wheels, and means for correcting leg inclination is installed by interposing a horizontal frame and both legs. The tea plantation management device characterized in that it is configured to maintain a bilaterally symmetrical posture with respect to the vertical direction even if the dimension between the orbits changes in the sloping ground. 2. A management trolley in which legs are provided vertically downward at both left and right ends of a horizontal frame, and wheels are installed at lower ends of the legs, and a lawnmower and the like mounted on the management trolley. In the tea garden management device, which has a management device, and the upper portions of the both legs are rotatably connected to the left and right ends of the horizontal frame in the inter-orbital direction, the management carriage is provided between the ridges on both sides of the tea ridge. It is configured to run on both laid tracks by wheels, and one end of each of the pair of left and right stays is connected to symmetrical positions of both legs.
Each of the other ends is connected to a symmetrical position at the center of the horizontal frame in the left-right direction, the connecting portion of the pair of left and right stays at the center is movable in the left-right direction, and the both legs are connected to each other. A tea plantation management device, characterized in that it is configured to maintain a bilaterally symmetrical posture with respect to the vertical direction even when the dimension between the orbits changes in a sloping ground in the inter-orbital direction due to the lateral movement of the section. 3. A management trolley in which legs are provided vertically downward at both left and right ends of a horizontal frame, and wheels are installed at the lower ends of the legs, and a lawn mower mounted on the management trolley and the like. In the tea garden management device, which has a management device, and the upper portions of both legs are rotatably connected to the left and right ends of the horizontal frame in the inter-track direction, It is configured to travel by wheels on both laid tracks, and one end side of each of the pair of left and right stays is connected to symmetrical positions of both leg parts,
Each of the other ends is connected to a symmetrical position in the center of the horizontal frame in the left-right direction, the pair of left and right stays has an adjustable effective length between both side portions, and the both legs are of the stay. A tea plantation management device, characterized in that it is configured so that it can maintain a bilaterally symmetrical posture with respect to the vertical direction even if the dimension between the orbits changes in a sloping ground in the direction between the orbits by adjusting the effective length. 4. A management trolley in which legs are provided vertically downward at the left and right ends of a horizontal frame, and wheels are installed at the lower ends of the legs, and a lawn mower mounted on the management trolley and the like. In the tea garden management device, which has a management device, and the upper parts of the both legs are rotatably connected to the left and right ends of the horizontal frame in the inter-track direction, It is configured to travel by wheels on both laid tracks, and is a parallelogram with a horizontal frame, both legs, and links parallel to the horizontal frame and having both ends connected to the two legs. A link mechanism is formed, and the link is movable left and right,
The tea plantation management characterized in that the both legs are configured to be able to maintain a bilaterally symmetrical posture with respect to the vertical direction even when the inter-orbital dimension changes in a sloping ground in the inter-orbital direction due to the lateral movement of the link. apparatus. 5. A management trolley in which legs are provided vertically downward at both left and right ends of a horizontal frame, and wheels are installed at the lower ends of the legs, and a lawnmower mounted on the management trolley and the like. In the tea garden management device having a management device, the management cart is configured to run by wheels on both tracks laid between the ridges on both sides of the tea ridge, and both legs have their respective legs. The upper portions of the front and rear columns that are formed are connected to the front and rear ends of the horizontal frame so as to be rotatable in the orbital axis direction, and the column tilt correction means is interposed between the horizontal frame and the front and rear columns. The tea plantation management device is characterized in that both the front and rear columns are configured to be able to maintain the vertical posture even on a sloped ground in the track axis direction by the correction means. 6. A management trolley in which legs are provided vertically downward at the left and right ends of a horizontal frame, and wheels are installed at the lower ends of the legs, and a lawn mower mounted on the management trolley and the like. In the tea garden management device having a management device, the management trolley is configured to travel by wheels on both tracks laid between the ridges on both sides of the tea ridge, and both legs have their respective legs. The upper parts of the front and rear columns that make up are connected to the front and rear ends of the horizontal frame so as to be rotatable in the orbital axis direction, and one end of each of the pair of front and rear stays is connected to symmetrical positions of the front and rear columns. , Each of the other ends is connected to a symmetrical position in the central portion of the horizontal frame in the front-rear direction, the connecting portion of the pair of front and rear stays in the central portion is movable in the front-rear direction, and both front and rear columns are By moving the connecting part of the stay in the front-back direction, Tea garden management apparatus characterized by being maintained configured to be able to vertical orientation. 7. A management trolley in which legs are provided vertically downward at both left and right ends of a horizontal frame, and wheels are installed at the lower ends of the legs, and a lawn mower mounted on the management trolley and the like. In the tea garden management device having a management device, the management cart is configured to run by wheels on both tracks laid between the ridges on both sides of the tea ridge, and both legs have their respective legs. The upper parts of the front and rear columns that make up are connected to the front and rear ends of the horizontal frame so as to be rotatable in the orbital axis direction. Each of the other ends is connected to a symmetrical position at the center of the horizontal frame in the front-rear direction, and the pair of front and rear stays can adjust the effective length between both sides, and the front and rear columns are By adjusting the effective length of the pair of stays, lead can be applied even on sloped ground in the track axis direction. Tea garden management apparatus characterized by being maintained configured to be able to direction of orientation. 8. A management trolley in which legs are provided vertically downward at both left and right ends of a horizontal frame, and wheels are installed at lower ends of the legs, and a lawnmower and the like mounted on the management trolley. In the tea garden management device having a management device, the management cart is configured to run by wheels on both tracks laid between the ridges on both sides of the tea ridge, and both legs have their respective legs. The upper parts of both the front and rear columns that make up are connected to the front and rear ends of the horizontal frame so as to be rotatable in the orbital axis direction. The horizontal frame, the front and rear columns, and both ends parallel to the horizontal frame. A parallelogram link mechanism is formed by a link connected to the two columns, the links are movable in the front-rear direction, and both columns in the front and rear are movable in the longitudinal direction by the movement of the links in the orbital axial direction. Is also configured to maintain a vertical posture Tea garden management apparatus according to claim and. 9. A management trolley in which legs are provided vertically downward on both left and right ends of a horizontal frame, and wheels are installed at the lower ends of the legs, and a lawnmower mounted on the management trolley and the like. In the tea garden management device, which has a management device, and the upper parts of the both legs are rotatably connected to the left and right ends of the horizontal frame in the inter-track direction, The vehicle is configured to travel on both laid tracks by wheels, and a leg inclination correcting means is installed by interposing a horizontal frame and both leg portions, and both leg portions are the leg inclination correcting means. Therefore, even if the inter-orbit dimension changes in the inter-orbit sloping ground, it is possible to maintain a symmetrical posture with respect to the vertical direction, and the both legs are of both the front and rear columns that make up each leg. The upper part is connected to the front and rear ends of the horizontal frame so that it can rotate in the axial direction of the track. The pillar inclination correcting means is installed through the horizontal frame and both the pillars, and both pillars can maintain the vertical posture even on the sloping ground in the track axis direction by the pillar inclination correcting means. Tea plantation management device characterized by being configured respectively. 10. A management trolley in which legs are provided vertically downward at the left and right ends of a horizontal frame, and wheels are installed at the lower ends of the legs, and a lawn mower mounted on the management trolley and the like. The upper part of the both leg parts is connected to the left and right end parts of the horizontal frame so as to be rotatable in the inter-orbital direction, and the both leg parts are configured to be swingable in a symmetrical shape. In the tea garden management device, the management cart is configured to run by wheels on both tracks that are laid between the ridges on both sides of the tea ridge, and one end of each pair of left and right stays has symmetrical positions of both legs. Connected to
Each other end side is connected to a symmetrical position at the center of the horizontal frame in the left-right direction, and the connecting part of the pair of left and right stays at the center is left and right together with the management device support means located at the center of the horizontal frame. Even if the dimension between the tracks changes on a slope in the direction between the tracks due to the movement of the connecting part of the stay in the left-right direction, both legs will be placed on a vertical line passing through the midpoint between the tracks. It is configured so that it can be oscillated symmetrically with respect to the vertical direction so that the center point of the frame is located, and that the center of the management device supporting means can be located on the extension of the center line of the cutting surface. A tea plantation management device characterized by being used. 11. A management trolley in which legs are provided vertically downward at the left and right ends of a horizontal frame, and wheels are installed at the lower ends of the legs, and a lawnmower mounted on the management trolley and the like. Management equipment, the upper portions of the both leg portions are connected to the left and right end portions of the horizontal frame so as to be rotatable in the inter-orbital direction, and the both leg portions are configured to be swingable in a symmetrical shape. In the tea garden management device, the management cart is configured to run by wheels on both tracks laid between the ridges on both sides of the tea ridge, and is parallel to the horizontal frame, both legs, and the horizontal frame. A parallelogrammatic link mechanism is formed by the links whose both ends are connected to the both legs, and the link is movable in the left and right direction together with the management device supporting means located in the center of the horizontal frame. By moving the right and left of the Even if the dimension between the tracks changes, both legs are allowed to swing symmetrically with respect to the vertical direction so that the center point of the horizontal frame is located on the vertical line passing through the midpoint between the tracks, and A tea plantation management device, characterized in that the center of the management device supporting means can be positioned on an extension of the center line of the cutting surface. 12. A management trolley in which legs are provided vertically downward at both left and right ends of a horizontal frame, and wheels are installed at lower ends of the legs, and a lawnmower mounted on the management trolley and the like. Management equipment, the upper portions of the both leg portions are connected to the left and right end portions of the horizontal frame so as to be rotatable in the inter-orbital direction, and the both leg portions are configured to be swingable in a symmetrical shape. In the tea garden management device, the management cart is configured to run by wheels on both tracks that are laid between the ridges on both sides of the tea ridge, and one end of each pair of left and right stays has symmetrical positions of both legs. Connected to
Each other end side is connected to a symmetrical position at the center of the horizontal frame in the left-right direction, and the connecting part of the pair of left and right stays at the center is left and right together with the management device support means located at the center of the horizontal frame. The stays can move in any direction, and even if the dimension between the tracks changes on a slope in the direction between the tracks due to the left-right movement of the connecting portion of the stay, the both legs are placed horizontally on a vertical line passing through the midpoint between the tracks. It is configured to be swingable in a symmetrical shape with respect to the vertical direction so that the center point of the frame is located, and the center of the management device supporting means can be located on the extension of the center line of the cutting surface. And the both legs are connected to the upper and lower ends of the front and rear columns constituting the respective legs so as to be rotatable in the orbital axial direction with respect to the front and rear ends of the horizontal frame,
A strut inclination correcting means is installed through a horizontal frame and both front and rear struts, and both struts are configured to be able to maintain a vertical posture even on a sloping ground in the track axis direction by the strut inclination correcting means. A tea plantation management device characterized by being installed. 13. A management trolley in which legs are provided vertically downward at both left and right ends of a horizontal frame, and wheels are installed at lower ends of the legs, and a lawnmower mounted on the management trolley and the like. Management equipment, the upper portions of the both leg portions are connected to the left and right end portions of the horizontal frame so as to be rotatable in the inter-orbital direction, and the both leg portions are configured to be swingable in a symmetrical shape. In the tea garden management device that is present, the management carriage is configured to travel by wheels on both tracks laid between the ridges on both sides of the tea ridge, and the tilting of the legs intervenes between the horizontal frame and both legs. A correction device is installed, and the management device support device located in the center of the horizontal frame is swingable at a height position on the line connecting the connection points at the upper parts of both legs. Even if the dimension between the orbits changes on a sloped land, It is possible to swing symmetrically with respect to the vertical direction so that the central point of the horizontal frame is located on the vertical line passing through, and the center of the management device supporting means is located on the extension of the center line of the cutting surface. A tea plantation management device, which is configured to be capable of performing. 14. A management trolley in which legs are provided vertically downward at both left and right ends of a horizontal frame, and wheels are installed at the lower ends of the legs, and a lawn mower mounted on the management trolley and the like. Management equipment, the upper portions of the both leg portions are connected to the left and right end portions of the horizontal frame so as to be rotatable in the inter-orbital direction, and the both leg portions are configured to be swingable in a symmetrical shape. In the tea garden management device, the management cart is configured to run on wheels on both tracks installed between the ridges on both sides of the tea ridge. Connected to
Each of the other ends is connected to a symmetrical position at the center of the horizontal frame in the left-right direction, and the management device support means located at the center of the horizontal frame is on the line connecting the connection points at the upper part of the both legs. It can be selected to be fixed or swingable at right angles to the horizontal frame at the height position, and the connecting portion of the pair of left and right stays in the central portion of the horizontal frame is the same as the management device supporting means. It is possible to select whether it is independent or independent, and it is movable in the left-right direction. Even if the inter-orbit dimension changes in a slope in the inter-orbit direction due to the left-right movement of the connecting portion of the pair of stays. , The both legs are swingable symmetrically with respect to the vertical direction so that the center point of the horizontal frame is located on the vertical line passing through the midpoint between the tracks, and on the extension of the center line of the cutting surface. It is configured that the center of the management device supporting means can be located in Tea garden management apparatus characterized by there. 15. A management trolley in which legs are provided vertically downward at the left and right ends of a horizontal frame, and wheels are installed at the lower ends of the legs, and a lawnmower mounted on the management trolley and the like. In the tea garden management device, which has a management device, and the upper portions of the both legs are rotatably connected to the left and right ends of the horizontal frame in the inter-orbital direction, the management carriage is provided between the ridges on both sides of the tea ridge. It is configured to run on both laid tracks by wheels, and the cross section of the track at a right angle to the axis is a quadrangle, and the four faces of the quadrangle are oriented in the horizontal and vertical directions. Is a structure that is vertically driven into the ground, and the management carriage is equipped with a means for correcting the inclination of the leg while keeping the distance between both legs constant by interposing the horizontal frame and both legs. , The axial length of the wheel of one of the legs is the width of the track It is a wide wheel that is several to ten times larger than the above. Both legs have a symmetrical shape with respect to the vertical direction even if the dimension between the orbits changes in the inter-orbital sloping ground by the leg inclination correcting means. A tea garden management device characterized by being configured to be maintainable. 16. A management trolley in which legs are provided vertically downward at both left and right ends of a horizontal frame, and wheels are installed at the lower ends of the legs, and a lawn mower mounted on the management trolley and the like. Management equipment, the upper portions of the both leg portions are connected to the left and right end portions of the horizontal frame so as to be rotatable in the inter-orbital direction, and the both leg portions are configured to be swingable in a symmetrical shape. In the tea garden management device, the management carriage is configured to travel by wheels on both tracks installed between the ridges on both sides of the tea ridge, and the cross section of the track at a right angle to the axis is a quadrangle, and the quadrilateral The planes are oriented in the horizontal and vertical directions, and the piles that support the tracks are driven vertically, and the management cart has means for correcting the inclination of the legs by interposing the horizontal frame and both legs. The wheels are connected to the legs so that they can rotate in the inter-track direction. The tea plantation is characterized in that both legs are configured so as to be able to swing symmetrically with respect to the vertical direction even if the dimension between the orbits changes in the sloping ground in the direction between the orbits by the leg inclination correcting means. Management device.