JP2010119367A - Screen winding machine for tea plant ridge - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a screen winding machine facilitating control of a machine body even in a tea plant ridge of a narrow ridge interval. <P>SOLUTION: The screen winding machine 1 for a tea plant ridge includes a machine body 2 which is supported with a pair of wheels 3 each travelling on both the sides of a tea plant ridge U and formed in a gate shape crossing the tea plant ridge U. In the machine body 2, a winding axis 4 is supported rotatably around a central axis extending to a ridge width direction above the tea plant ridge U. The machine body 2 in a travelling figure when travelling along the tea plant ridge U is formed to place the central axis of the winding axis 4 on nearly above the central axis of the wheels 3, and equipped with a tumble preventing part 20 arranged at a height almost equal to that of the upper surface of a tea plant T ahead of the winding axis 4. The tumble preventing part 20 is formed to be loadable on the upper surface of the tea plant T by nearly surface-contacting the upper surface of the tea plant T in the travelling figure. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a screen winder for attaching a screen to an upper part of a tea tree cultivated in a tea tree pod or winding a screen from the upper part of the tea tree.

  As a first background art, a sheet winder described in Patent Document 1 is exemplified. This sheet winder includes an engine that can be carried by an operator, a flexible shaft connected to the engine, a connecting shaft provided at the tip of the flexible shaft, and a seat that is detachably attached to the connecting shaft. It is equipped with a take-up shaft, but no wheels. The end of the net is locked to the sheet take-up shaft, the sheet take-up shaft is placed on the tea tree, and the engine is operated with the support bar and handle attached to the sheet take-up shaft. By doing so, the net can be wound up.

  As a second background art, a winder for chrysanthemum cultivation described in Patent Document 2 is exemplified. As shown in FIG. 7, this winder has a reduction gear (not shown) that can be transmitted from the engine E through a flexible transmission shaft 66 on one end side of the U-shaped support frame rod 51 that is long in the lateral direction. A metal (not shown) is fixed to each end, and a winding drum 54 on which a long chrysanthemum cultivation net A can be wound is detachably mounted between the speed reducer and the metal, and the support is supported. A grounding ring 56 is pivoted on the lower ends of both support rods 60, 60 extending to the lower side of the frame rod 51, and a handle rod 57 is extended above the support frame rod 51. It is configured to be operated by hand.

JP 2002-171844 A Japanese Utility Model Publication 6-47251

  However, the sheet winder according to the first background art does not include wheels, and there is a problem that the burden on the worker is large because the worker carries the engine on the back. In addition, since the work is performed with the sheet take-up shaft placed on the tea tree basket, almost the entire weight of the sheet take-up shaft and the sheet wound on the shaft is placed on the tea tree, and the tea tree and its buds are placed on the tea tree. There is also the problem of being hurt.

  Further, when two traveling wheels are equipped like the winder of the second background art, there is a problem that the body becomes unstable in the front-rear direction. In particular, when sticking a screen to a tea tree cocoon or peeling the screen from the tea tree cocoon, the tea tree grows in the cocoon, unlike the chrysanthemum cultivation moths in the background art. Since it is impossible for a person to work across a kite, a machine that is supported by two traveling wheels as described in the background art and that is operated by a single operator should be adopted. I can't.

  Therefore, it is conceivable to increase the number of traveling wheels to three or more. However, in the case of a tea tree with a narrow space between them to improve cultivation efficiency, the wheel will be caught by the tea tree, and it may be difficult to control the machine or damage the tea tree. There is a problem that there is. Furthermore, when the number of traveling wheels increases, there is a problem that the size of the airframe increases and the small turn does not work.

In order to solve the above problems, the screen winder for tea tree of the first invention is
It is supported by a pair of wheels that run on both sides of the tea cup, and comprises a gate-shaped body that straddles the tea cup,
The machine body is a screen take-up machine for tea candy, in which a take-up shaft is supported around the central axis extending in the cocoon width direction above the tea candy,
The airframe is configured so that the central axis of the winding shaft is positioned substantially above the central axis of the wheel in a traveling posture when traveling along the tea tree pod. A tilt prevention portion disposed at a height substantially equal to the top surface of the tea tree in the front or / and the rear,
The tilt prevention unit is configured to be able to be placed on the upper surface of the tea tree by substantially contacting the upper surface of the tea tree in the traveling posture.

  According to this configuration, since the machine body is configured to be supported by the pair of wheels, even if the machine body is caught on a branch of tea tree or the like when traveling along the tea tree basket, The aircraft is easy to control and can easily escape from tangles. In addition, because it is also two wheels, traction resistance is reduced and it can move with less force. Further, since the central axis of the winding shaft is configured to be positioned substantially above the central axis of the wheel, the front / rear balance is excellent and the handling is easy. In addition, in the running posture, since it includes a tilt prevention portion configured to be able to be mounted on the upper surface of the tea tree by making substantially surface contact with the upper surface of the tea tree, Even if the aircraft is released, the running posture can be maintained without damaging the tea plant.

In addition, the screen winding machine for tea tree according to the second aspect of the present invention is the first aspect,
The airframe includes a guide bar extending in front of the winding shaft and extending in parallel with the winding shaft,
The guide bar is provided with a pair of guide members spaced apart from each other in the longitudinal direction of the guide bar,
The interval between the guide members is set to be narrower than the width of the screen to be wound,
The said screen illustrates the aspect comprised so that it might wind up by the said winding shaft via between the both guide members in the upper side of this guide bar.

  According to this configuration, when the screen is wound around the winding shaft with both edges of the screen folded, the interval between the guide members is set equal to the width of the screen in the folded state. Thus, the width of the screen in the folded state can be kept constant.

Moreover, the screen winder for tea tree according to the third invention is the first or second invention,
An example in which a drive unit that rotationally drives the winding shaft is mounted on the machine body is illustrated.

  According to this configuration, since the winding shaft is driven by the drive unit, the burden on the operator can be reduced.

Moreover, the screen take-up machine for tea tree according to the fourth invention is the third invention,
The winding shaft and the drive unit exemplify an aspect configured to be detachable from the machine body.

  According to this configuration, since the winding shaft and the driving unit are configured to be detachable, the driving unit and the winding shaft are detached from the machine body, and the driving unit is connected to one end side of the winding shaft. At the same time, if a shaft supporting portion that rotatably supports the other end side of the winding shaft is attached to the other end side, a screen can be stuck even in a place where the work is difficult when mounted on the airframe. It is possible to perform a winding operation.

  According to the screen take-up machine for tea tree according to the present invention, there is an excellent effect that the body can be easily controlled even with a tea tree with a narrow space.

  FIGS. 1-6 has shown the screen winder 1 for teacups of one Embodiment which actualized this invention, and the arrow F has pointed out the body front side in each figure. As shown in FIGS. 1 to 3, the screen winder 1 includes a machine body 2 supported by a pair of wheels 3 that travel on both sides of the tea plantation U, and a screen S is wound around the machine body 2. A take-up shaft 4 for taking up and a drive unit 5 for rotationally driving the take-up shaft 4 are detachably mounted.

  The screen S is continuously laid and used along the longitudinal direction of the tea tree U to cover the tea tree T for the purpose of shading for several days before the tea leaves are plucked. It is a long net of several tens of meters. The screen S is stored in a roll-up state, and is used by being unwound from the roll when the tea tree T is covered. In order to prevent scattering of the screen S due to wind and rain, etc., clips C are attached to both edges of the screen S via a string R of about 10 cm at intervals of about several meters in the width direction of the screen S. The screen C is attached to the tea tree T by the clip C. The string R and the clip C are attached to the screen S when the screen S is used for the first time, and thereafter, the string R and the clip C are stored or used while being attached to the screen S.

  The body 2 is formed in a gate shape straddling the tea tree U by a pair of left and right leg frames 10 extending vertically and a horizontal frame 11 connecting the upper portions of the both leg frames 10. The horizontal frame 11 as a part extending in the left-right direction in the airframe 2 is configured to be adjustable in length by a nested structure in order to be adaptable to various ridge widths. Each of the wheels 3 is rotatably supported at the lower end of the leg frame 10. A handle 12 projects from the top of the body 2 toward the front of the body 2. On both the left and right sides of the upper part of the machine body 2, shaft support portions 13 are erected, and the take-up shaft 4 is rotatably and detachably supported in recesses provided at the upper ends of the both shaft support portions 13, respectively. Has been. A drive unit 5 is detachably mounted on one of the left and right sides (in this example, the right side in FIG. 3) of the upper part of the machine body 2, and the winding shaft 4 is connected to the output shaft of the drive unit 5. One end is connected so as to be detachable and not relatively rotatable. A guide bar 15 is rotatably supported between the winding shaft 4 and a portion extending in the lateral direction of the handle 12 at a height position substantially equal to the winding shaft 4 (a slightly higher position in this example). ing. The guide bar 15 of this example is supported by a bar support portion 16 protruding forward from the left and right shaft support portions 13 so that the rotation axis thereof is parallel to the winding shaft 4. Further, the left and right shaft support portions 13 are respectively provided with spare shaft support portions 17 projecting rearward so that both end sides of the spare take-up shaft 4 are supported by the both spare shaft support portions 17. It has become.

  The handle 12 is formed in a substantially U shape, and both end portions thereof are supported by both end portions of the horizontal frame 11, respectively. A tilt prevention portion 20 is provided at a portion of the handle 12 that extends in the left-right direction. The part extending in the left-right direction and the part extending in the front-rear direction in the handle 12 are configured to be adjustable in length by the same structure as the part extending in the left-right direction in the body 2.

  The tilt prevention unit 20 is configured so that the central axis of the winding shaft 4 is positioned substantially above the central axis of the wheel 3 in the traveling posture when traveling along the tea plantation U, and the winding shaft 4. Is arranged at a height substantially equal to the upper surface of the tea tree T in front (possibly also rearward). The tilt prevention unit 20 of this example is formed in a plate shape that can be placed on the upper surface of the tea tree T when the lower surface substantially contacts the upper surface of the tea tree T in the traveling posture. The lower edge portions of the front and rear of the tilt prevention portion 20 are curved so as to bend upward in order to prevent catching on the tea leaves. The tilt prevention unit 20 is supported so as to be rotatable with respect to a portion extending in the lateral direction of the handle 12 about the same portion. The portion of the lower surface of the tilt prevention unit 20 that is in surface contact with the upper surface of the tea tree is not particularly limited, but in the state where the screen S is wound around both the winding shaft 4 and the spare winding shaft 4, The operator releases the machine body 2 so that when the weight of the machine is applied to the tea tree via the tilt prevention unit 20, the tilt prevention unit 20 has a sufficient area so as not to sink into the tea tree. It is preferable to do.

  In the guide bar 15, guide boards 25 as a pair of guide members are disposed at intervals in the longitudinal direction of the guide bar 15. The interval between the guide panels 25 is configured to be adjustable, and is set to be narrower than the width of the screen S to be wound. The screen side surface of the guide board 25 is formed in a taper shape that becomes thinner toward the edge side of the board surface. The screen S is configured to be wound around the winding shaft 4 via the space between both guide panels 25 on the upper side of the guide bar 15. As shown in FIG. 4, the screen winder 1 of the present invention is configured so that both edges in the width direction of the screen S are folded downward when the screen S is wound. This is because the string R and the clip C attached to the both edge portions can be easily wound around the roll of the screen S. At this time, the guide bar 15 and the guide board 25 guide the width of the screen S in a state where both edges are folded back. The width at which each edge is folded is not less than the length from the tip of the clip C to the tip of the string R attached to the clip C so that the clip C is not exposed from the end of the roll of the screen S. Is preferred. According to this winding method, a large number of strings R and clips C do not hang down from the end of the roll of the screen S after winding. For this reason, since many string R and the clip C do not get entangled with each other, when the screen S is stuck next time, it can work smoothly.

  In the winding shaft 4, softly formed collars 22 are provided on the peripheral surfaces of the portions where both edges of the screen S are wound (see FIG. 4B). Examples of the collar 22 include an embodiment formed of rubber, soft resin, sponge, or the like. The collar 22 prevents the clip C and the string R at the start of winding of the screen S from sliding on the peripheral surface of the winding shaft 4 so that the screen S can be smoothly wound. It is. The collar 22 also has an effect of preventing the clip C from being damaged.

  In this example, the drive unit 5 employs a motor (not shown) that uses a battery as a power source as a power source. The drive unit 5 includes a box-shaped housing, and a hand handle 27 is provided on the housing. A motor, a power supply, a motor drive circuit, and the like (all not shown) are built in the housing. In this example, an accelerator lever 29 for steering the operation of the drive unit 5 is provided on the housing and the handle 12. In this example, the accelerator lever 29 provided on the handle 12 and the drive unit 5 are connected by a signal cable via a connector (not shown) provided on the casing, and the second use described later. When the drive unit 5 is detached from the machine body 2 and used as in the method, the drive unit 5 is disconnected at the connector.

  Next, three types of usage of the screen winder 1 will be described.

  The first method of use is a method of use when the machine is run in the longitudinal direction of the teacup U while the screen S is stuck on the teacup U, or when the screen S is peeled off from the tea cup U. is there. When sticking the screen S to the teacup U, the drive unit 5 is removed from the machine body 2 and the two windings in a state where the screen S is wound around the left and right shaft support portions 13 and the left and right auxiliary shaft support portions 17. Each of the shafts 4 is supported. Then, the worker is positioned on both sides of the machine body 2, the machine body 2 is directed in the direction in which the screen S is stretched, and the vehicle body 2 is placed in a traveling state where the tea tree U is straddled. Then, the longitudinal end portion of the screen S is pulled out from the winding shaft 4 supported by the shaft support portion 13, and is fixed to the tea tree U with the clip C via the upper side of the guide bar 15. Next, when the operator manually pushes the machine body 2 back along the tea tree cup U, the screen S is pulled out from the take-up shaft 4 along with the running and is put on the tea tree cup U. At this time, each worker may cause the body 2 to travel in this manner and at the same time attach the clip C attached to both edges in the width direction of the screen S to the tea tree T, or another worker may The clip C may be attached to the teacup U. Then, when the installation of the screen S of the winding shaft 4 supported by the shaft support portion 13 is completed, the winding shaft 4 is replaced with that of the spare shaft support portion 17 and the operation is continued.

  Further, when the screen S is wound while being peeled off from the teacup U, the drive unit 5 is mounted on the machine body 2 and the screen S is not wound around the left and right shaft support portions 13 and the left and right auxiliary shaft support portions 2. The winding shafts 4 are respectively supported, and the winding shaft 4 supported by the shaft support portion 13 is connected to the drive unit 5. Then, the operator is positioned on both sides of the machine body 2, and the front of the machine body is directed in the direction of winding while peeling off the screen S, and the vehicle body 2 is placed in a traveling state across the tea tree U. And the longitudinal direction edge part of the screen S stuck on the tea-bowl U is stripped off, and it fixes to the winding shaft 4 supported by the shaft support part 13 via the upper side of the guide bar 15. FIG. Next, when the operator operates the accelerator lever 29 of the drive unit 5 to cause the drive unit 5 to rotationally drive the winding shaft 4, and the vehicle body 2 travels along the tea plantation U by hand, the travel is performed. At the same time, the screen S is peeled off from the tea tree bowl U and is wound around the winding shaft 4. At this time, each worker may run the machine body 2 and simultaneously remove the clips C attached to both edges in the width direction of the screen S from the tea tree T before the screen S is peeled off. Another worker may remove the clip C from the teacup U. When the winding of the screen S onto the winding shaft 4 supported by the shaft support portion 13 is completed, the winding shaft 4 is replaced with that of the spare shaft support portion 17 and the operation is continued.

  As shown in FIG. 5, the second method of use is to remove the drive unit 5 and the take-up shaft 4 from the machine body 2, connect the drive unit 5 to one end side of the take-up shaft 4, and This is a method in which a cylindrical shaft support portion 30 that rotatably supports the other end side is used while being mounted on the other end side. In this method, an operator is located on each side of the take-up shaft 4, an operator on the drive unit side has a hand handle 27 of the drive unit 5, and the other operator has a shaft support portion 30. 4 is supported on the upper side of the tea plantation bowl U so as to extend in the width direction of the pot. In this state, similarly to the first method of use, the screen S can be stuck on the tea tree basket U, or the screen S can be rolled up while being peeled off from the tea tree basket U.

  As shown in FIG. 6, the third usage method is a method of using the machine in a state where the machine is placed on the ground, such as one end side in the longitudinal direction of the tea candy U, with the same configuration as the first usage method. In this method, the tilt prevention unit 20 is grounded by tilting the body 2 toward the handle. In this state, the screen S can be wound around the winding shaft 4 supported by the shaft support portion 13, or the screen S can be pulled out from the winding shaft 4 supported by the shaft support portion 13. The screen S can be wound or pulled out from either the front side or the rear side of the body 2. In the illustrated example, the lower surface of the tilt prevention unit 20 is grounded, but the tilt prevention unit 20 may be rotated and the upper surface side thereof may be grounded.

  According to the screen winding machine 1 for tea candy according to the present example configured as described above, since the machine body 2 is supported by the pair of wheels 3, when traveling along the tea candy U, Even if the airframe 2 is caught on a branch of the tea tree T or the like, since it is two wheels, it is easy to control the airframe 2 and can easily escape from the tangle. In addition, because it is also two wheels, traction resistance is reduced and it can move with less force. Moreover, since it is comprised so that the center axis | shaft of the winding shaft 4 may be located substantially above the center axis | shaft of the wheel 3, it is excellent in the front-back balance and is easy to handle. Moreover, in the traveling posture, since the tilt prevention unit 20 configured to be able to be placed on the upper surface of the tea tree T by being substantially in surface contact with the upper surface of the tea tree T is provided, Even if the operator releases the machine body 2, the traveling posture can be maintained without damaging the tea tree T.

  The guide bar 15 is provided with a guide board 25 as a pair of guide members spaced apart from each other in the longitudinal direction of the guide bar 15. The distance between the guide boards 25 is the width of the screen S to be wound. Since the screen S is configured to be wound around the winding shaft 4 via the space between the guide boards 25 on the upper side of the guide bar 15, both edges of the screen S are set. When the winding shaft 4 is wound in a folded state, the spacing between the guide boards 25 is made equal to the width of the screen S in the folded state, so that the screen S in the folded state is kept. The width of can be kept constant.

  Moreover, since the winding shaft 4 is driven by the drive unit 5, the burden on the operator can be reduced.

  Further, since the take-up shaft 4 and the drive unit 5 are configured to be detachable, the drive unit 5 and the take-up shaft 4 are detached from the machine body 2 as described in the second usage method, and the take-up shaft is removed. When the drive unit 5 is connected to one end side of the shaft 4 and a shaft support portion that rotatably supports the other end side of the winding shaft 4 is attached to the other end side, the work can be performed in the state of being mounted on the machine body 2. Even in difficult places, it is possible to perform the work of attaching and winding the screen S.

In addition, this invention is not limited to the said embodiment, For example, it can also be suitably changed and embodied as follows, for example in the range which does not deviate from the meaning of invention.
(1) Change the shape of the tilt prevention unit 20 as appropriate. For example, the formation of a warp extending in the front-rear direction is exemplified.
(2) The tilt prevention unit 20 is disposed only at the rear of the winding shaft 4 or at both the front and rear.
(3) Adopting an engine as a power source of the drive unit 5.

It is a side view of the screen take-up machine for teacups concerning one embodiment which materialized the present invention. It is a top view of the winder. It is a rear view of the winder. It is a figure which shows the winding method of the screen to the winding shaft of the winding machine, (a) is a perspective view, (b) is a rear view. It is a figure which shows the 2nd usage method of the winding machine, (a) is a top view, (b) is a rear view. It is a figure which shows the 3rd usage method of the winder, (a) shows the aspect which is winding up or drawing out a screen from the body front side, (b) is performing this from the body rear side. An embodiment is shown. It is a side view of the winder for chrysanthemum cultivation which concerns on background art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Screen take-up machine for tea tree 2 Machine body 3 Wheel 4 Winding shaft 5 Drive part 10 Leg frame 11 Horizontal frame 12 Handle 13 Shaft support part 15 Guide bar 16 Bar support part 17 Spare shaft support part 20 Tilt prevention part 22 Collar 25 Guide board 27 Carrying handle 29 Accelerator lever 30 Shaft support C Clip R String S Screen T Chaju U Chaju

Claims (4)

It is supported by a pair of wheels that run on both sides of the tea cup, and comprises a gate-shaped body that straddles the tea cup,
The machine body is a screen take-up machine for tea candy, in which a take-up shaft is supported around the central axis extending in the cocoon width direction above the tea candy,
The airframe is configured so that the central axis of the winding shaft is positioned substantially above the central axis of the wheel in a traveling posture when traveling along the tea tree pod. A tilt prevention portion disposed at a height substantially equal to the top surface of the tea tree in the front or / and the rear,
In the traveling posture, the tilt prevention unit is a screen take-up machine for a tea plantation that is configured to be able to be placed on the upper surface of the tea tree by substantially contacting the upper surface of the tea tree. The airframe includes a guide bar extending in front of the winding shaft and extending in parallel with the winding shaft,
The guide bar is provided with a pair of guide members spaced apart from each other in the longitudinal direction of the guide bar,
The interval between the guide members is set to be narrower than the width of the screen to be wound,
The screen take-up machine for a tea tree according to claim 1, wherein the screen is configured to be wound around the winding shaft via a gap between both guide members on the upper side of the guide bar.   The screen take-up machine for tea tree according to claim 1 or 2, wherein a drive unit that rotationally drives the take-up shaft is mounted on the machine body.   The screen take-up machine for tea tree according to claim 3, wherein the take-up shaft and the drive unit are configured to be detachable from the machine body.

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