JP5252501B2 - Screen winder for tea ceremony - Google Patents

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 background art, the covering material covering winding apparatus of patent document 1 is illustrated. As shown in FIGS. 8 and 9, this apparatus has a core rod 144 for attaching and / or winding up the covering material 105 by a device for attaching and / or winding the covering material 105 onto the ridge. And a rotary clutch device 141 for controlling the rotational speed of the core rod 144 to match the traveling speed of the covering material winding device, and is configured to automatically travel along the heel by power. Yes.

  The vehicle body portion of this apparatus is composed of portal-type support frames 122 and 123 and a portal-type upper frame 134 and 135 that are configured to expand and contract in a direction perpendicular to the front F direction. A front wheel 103 is mounted in the front F direction and a rear wheel 102 is mounted in the rear direction on the left and right sides of the wheel frames 132 on both sides of the gate-type support frames 122 and 123, respectively. In particular, the front wheel 103 is 360 in all directions. The structure can be rotated in degrees. Further, the rear wheel 102 is a mechanism in which the power from the engine is transmitted by the drive chain 104 and the apparatus can travel in the front F direction or the rear direction.

JP 2003-319723 A

  However, as shown in FIG. 9, when the tea plantation U is extended along the contour line in the inclined ground, the tea tree T grows in the vertical direction, whereas the core rod 144 is parallel to the inclined ground. Since it is supported, the core bar 144 is inclined relative to the upper surface of the tea tree T, and when the covering material 105 is wound up, the covering material 105 is unwound toward one side in the length direction of the core bar 144. There is a problem. In addition, since the gate-type support frames 122 and 123 of the aircraft are perpendicular to the inclined ground with respect to the tea tree T grown in the vertical direction, the portal-type support frames 122 and 123 are made of tea trees when the aircraft is moving. There is a problem that the side of the machine is in contact with the aircraft, making it difficult for the aircraft to progress, and that the tea plant T may be damaged.

  In addition, in the tea plantation U in which the spaces between the ridges and the heel ends are formed narrowly for improving the cultivation efficiency, it is impossible or difficult for the conventional apparatus including the four wheels 102 and 103 to turn the body at the heel end. Therefore, there is a problem that it cannot be used.

In order to solve the above-mentioned problem, a screen winder for tea tree according to the present invention,
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 aircraft includes a pair of telescopic frames that can individually adjust the vertical spacing between the winding shaft and the wheels.
The telescopic frame is inserted into the upper hollow tube and the lower hollow tube assembled in a nested manner, and the upper hollow tube and the lower hollow tube. Urging means for urging the pipe so as to be relatively separated in the vertical direction; and fixing means for fixing the upper hollow tube and the lower hollow tube in an arbitrary or a plurality of relative positional relationships in the vertical direction. Yes.

  According to this configuration, since the airframe is provided with the pair of telescopic frames, the upper surface of the teacup is relative to the ground, for example, when the teacup is extended along the contour line of an inclined ground. If the pair of telescopic frames is individually inclined, the winding axis can be made parallel to the upper surface of the tea plant. For this reason, the screen can be evenly wound around the winding shaft without being biased to one side in the length direction. Also, by this adjustment, since the part facing the side surface of the tea tree grown in the vertical direction is substantially parallel to the side surface of the tea tree, the machine body can reduce the contact between the part and the side surface of the tea tree when the machine body is moving. . Further, since the urging means urges the telescopic frame to push up the take-up shaft, the take-up shaft in a state where the weight is increased by winding the screen. It is possible to reduce the burden on the operator when adjusting the inclination of the operator. Since the work load is reduced in this way, it becomes easy to make adjustments as needed when necessary during the winding or tensioning of the screen or during the turning of the airframe.

In the screen take-up machine for tea tree coffee,
Each of the wheels is provided on the airframe via a wheel support portion that rotatably supports the wheel, and a turning rotation portion that rotatably supports the wheel support portion around a turning axis extending in the vertical direction. And
An example in which the airframe is provided with a rotation prohibiting means for prohibiting the rotation of the turning part for turning around the turning axis is illustrated.

  According to this configuration, when the screen is wound or stretched, the rotation of the turning rotation unit can be prohibited by the rotation prohibiting unit so that the machine body moves straight along the tea tree. On the other hand, when the airframe is turning at the heel end, the prohibition of the rotation prohibiting means on the one turning rotation portion side can be released so that the airframe turns around the one turning rotation portion.

  According to the screen winder for tea tree according to the present invention, even when the ground and the upper surface of the tea tree are not parallel, the winding axis can be adjusted to be parallel to the upper surface of the tea tree. There is an excellent effect of being able to.

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 side view which shows the structure of the leg frame of the winding machine, (a) is a contracted state, (b) is a diagram showing an extended state. It is front sectional drawing which shows the structure of the leg frame of the winding machine, (a) is in a state where rotation of the rotating part for turning is prohibited, (b) is in a state where rotation of the rotating part for turning is not prohibited. Each is shown. It is a rear view which shows the example of use in the sloping ground of the winder. It is a top view which shows a mode that the winder turns in the heel end and changes. It is a side view of the coating material covering winding apparatus which concerns on background art. It is a front view which shows the usage example in the sloping ground of the same covering material covering winding device.

  FIGS. 1-7 has shown the screen winder 1 for tea-brushers 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.

  The leg frame 10 is provided with a pair of telescopic frames 30 that can individually adjust the vertical distance between the winding shaft 4 and each wheel 3. The wheel 3 is attached via the rotating portion 31 and the wheel support portion 32, and a rotation prohibiting means 33 that prohibits the rotation of the turning rotating portion 31 is provided.

  As shown in FIGS. 4 and 5, the telescopic frame 30 is inserted into the upper hollow tube 35 and the lower hollow tube 36 assembled in a nested manner, and the upper hollow tube 35 and the lower hollow tube 36. In addition, the upper end and the lower end are fixed to the upper hollow tube 35 and the lower hollow tube 36, respectively, and the upper hollow tube 35 and the lower hollow tube 36 are biased so as to be relatively separated in the vertical direction. An urging means 37 and a fixing means 38 for fixing the upper hollow tube 35 and the lower hollow tube 36 in an arbitrary or a plurality of relative positional relationships in the vertical direction are provided. In this example, the lower hollow tube 36 is inserted into the upper hollow tube 35 to be nested. As the urging means 37, a gas spring is exemplified. As the fixing means 38, a female screw member 39 attached to the upper hollow tube 35, a screw is inserted into the female screw member 39, and a tip is passed through a through hole provided in the peripheral wall of the upper hollow tube 35. It is comprised by the fixing volt | bolt 40 provided in the outer periphery of the lower hollow tube 36 so that isolation | separation was possible. As shown in FIG. 6, when the upper surface of the tea plantation U is inclined relative to the ground, the length of the pair of stretchable frames 30 is individually adjusted, so that the upper surface of the tea tree T is adjusted. The winding shaft 4 can be made parallel.

  As shown in FIG. 5, the wheel support portion 32 is configured to support the wheel 3 so as to be rotatable around the axle. Further, the turning rotating portion 31 is erected on the upper end of the wheel support portion 32, and a turning shaft 41 rotatably inserted into the lower end side opening of the lower hollow tube 36, and the turning shaft 41 is connected to the lower hollow tube. And a retaining means 42 for retaining from 36, and is configured to support the wheel support portion 32 so as to be rotatable about the turning axis with respect to the telescopic frame 30. The rotation prohibiting means 33 is supported by a pair of upper and lower support pieces 43, 44 attached to the lower end of the telescopic frame 30, and is slidably supported by the both support pieces 43, 44, and has a tip at the turning rotary part 31. And a rotation prohibiting pin 46 formed so as to be able to be engaged with the locking hole 45 provided. Upper and lower stepped portions 43a are provided on the upper surface of the upper support piece 43. When a lever 47 projecting sideways from the upper end of the rotation prohibiting pin 46 is placed on the stepped portion 43a, the rotation prohibiting pin 43 When the lever 47 is lowered from above the stepped portion 43a, the tip of the rotation prohibiting pin 46 can be engaged with the locking hole 45. . In a state where the rotation of the turning rotary unit 31 is prohibited by the rotation prohibiting means 33, the turning rotary unit 31 is fixed so that the axle 3 a is parallel to the winding shaft 4.

  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 winding shaft 4 is rotatably and detachably supported on both shaft support portions 13. A drive unit 5 is detachably mounted on one of the left and right sides (in this example, the left 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.

  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.

  As described above, the screen take-up machine 1 for tea tree mushrooms is configured to be used in a state in which the body 2 is supported by the pair of wheels 3 and both sides of the body 2 are supported by the operator. Even when the airframe 2 is caught on a branch of the tea tree T or the like when traveling along the tea plantation U, since it is two wheels, the control of the airframe 2 is easy, and it is possible to 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.

  Next, an operation method when the screen winder 1 is swung at the heel end to be changed will be described with reference to FIG. In this example, the case of turning to the left in the figure will be described.

(1) First, as shown in FIG. 4A, when the airframe 2 reaches the heel end, the rotation inhibition by the rotation inhibition means 33 on the left side of the airframe, which is the turning center side, is canceled.
(2) Next, as shown in FIGS. 4A to 4C, the airframe 2 is turned about 90 ° to the left about the turning rotation portion 31 on the left side of the airframe. At this time, the vehicle body 2 is appropriately moved backward (moves in the right direction in the figure) so that the wheel 3 on the right side of the vehicle body does not protrude from the space at the heel end.
(3) Next, as shown in FIGS. 3C to 3E, the airframe 2 is further turned about 90 ° to the left about the turning rotation portion 31 on the left side of the airframe. At this time, the vehicle body 2 is appropriately moved backward (traveled in the left direction in the figure) so that the wheel 3 on the right side of the vehicle body does not protrude from the space at the heel end.
(4) As shown in (e) of the figure, when turning and finishing the turn, the rotation inhibition by the rotation inhibition means 33 on the left side of the machine body is set. This is the end of the work.

  According to the screen take-up machine 1 for tea plantation of the present example configured as described above, since the machine body 2 includes a pair of telescopic frames 30, the tea plantation U extends, for example, along a contour line of an inclined land. When the upper surface of the teacup U is inclined relative to the ground, as shown in FIG. 6, by adjusting the lengths of the pair of stretchable frames 30 individually as shown in FIG. The winding shaft 4 can be parallel to the upper surface of the tea tree T. For this reason, the screen S can be evenly wound around the winding shaft 4 without being biased to one side in the length direction. In addition, by this adjustment, the body 2 has a portion facing the side surface of the tea tree T grown in the vertical direction so that the side surface of the tea tree T is substantially parallel to the side surface of the tea tree T. Can be reduced. Further, since the urging means 37 urges the telescopic frame 30 so as to push the take-up shaft 4 upward, the take-up shaft in a state where the weight is increased by winding the screen S. The burden on the operator when adjusting the inclination of 4 can be reduced. Since the work load is reduced in this way, it becomes easy to make adjustments as needed when the screen S is being wound or stretched or when the airframe 2 is turning.

  Further, when the screen S is wound or stretched, the rotation of the turning rotary unit 31 can be prohibited by the rotation prohibiting means 33 so that the machine body 2 moves straight along the tea tree U. On the other hand, when the airframe 2 turns at the heel end, the prohibition of the rotation prohibiting means 33 on the one turning rotation portion 31 side can be canceled so that the airframe 2 turns around the one turning rotation portion 31. it can.

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.

DESCRIPTION OF SYMBOLS 1 Screen take-up machine for tea tree 2 Machine body 3 Wheel 3a Axle 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 25 Guide board 30 Telescopic frame 31 Turning rotating portion 32 Wheel support portion 33 Rotation prohibiting means 35 Upper hollow tube 36 Lower hollow tube 37 Energizing means 38 Fixing means 39 Female screw member 40 Fixing bolt 41 Turning shaft 42 Retaining means 43 Supporting piece 43a Stepped part 44 Supporting piece 45 Locking hole 46 Rotation prohibiting pin 47 Lever C Clip R String S Screen T Tea tree U Tea tree coffee

Claims (2)

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 aircraft includes a pair of telescopic frames that can individually adjust the vertical spacing between the winding shaft and the wheels.
The telescopic frame is inserted into the upper hollow tube and the lower hollow tube assembled in a nested manner, and the upper hollow tube and the lower hollow tube. Urging means for urging the pipe so as to be relatively separated in the vertical direction; and a fixing means for fixing the upper hollow tube and the lower hollow tube in an arbitrary or a plurality of relative positional relations in the vertical direction. A screen winder for tea ceremony. Each of the wheels is provided on the airframe via a wheel support portion that rotatably supports the wheel, and a turning rotation portion that rotatably supports the wheel support portion around a turning axis extending in the vertical direction. And
The screen winder for tea tree according to claim 1, wherein the machine body is provided with rotation prohibiting means for prohibiting rotation of the turning part for turning around a turning axis.

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