JP2005237278A - Prop driver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a prop driver designed to cut man-hour for prop driving and pulling work. <P>SOLUTION: The prop driver 10 comprises a tractor 11 and a prop driving unit 20, wherein the prop driving unit 20 has transversely collocated three prop driving apparatuses 43. In this prop driver 10, each of these three prop driving apparatuses 43 has a prop-gripping means 52 for gripping a prop 100 and a hydraulic cylinder 53 for lifting the prop-gripping means 52. This prop driver 10 is also equipped with a control lever 83 for making a descending drive of the three hydraulic cylinders 53 in a single operation in such a condition that three props 100 are gripped by the three prop-gripping means 52 respectively in driving the three props 100. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a strut driving machine capable of driving or pulling a net holding strut for winding a vine such as a long rod.

  In general, when planting seed pods such as long bamboo shoots, the soil is softened beforehand using a trencher etc. in order to make straight long cocoons from the viewpoint of increasing the commercial value of the long cocoon, and then using a transplanter etc. By planting seed pods in the buds, the buds from the seed buds grow straight and grow in the softer soil than the surroundings, making it possible to make straight long buds, Can be easily dug. In such a process, conventionally, in order to make it easier for the vines to wind around the seed pods in the vicinity of the seed pods, an operation of driving a net support column of the seed pods on the leeward side of the seed varieties is performed. Conventionally, the strut driving work has been manually driven one by one. However, since this increases the number of work steps, it is conceivable to use a strut driving machine from the viewpoint of labor saving and the like. As such a strut driving machine, for example, a strut driving machine used for providing a greenhouse in a farm field is known. In this prop driving machine, first, props are erected at a predetermined interval on the field, and then the upper ends of the left and right props are connected to each other and covered with vinyl to make a greenhouse. As a feature of this prior art, the strut driving device is disposed on the left and right sides behind the left and right rear wheels of the traveling carriage, and the left and right strut driving apparatuses in a direction (width direction) substantially orthogonal to the traveling direction of the traveling carriage. Means for adjusting the interval substantially symmetrically (see Patent Document 1 and Patent Document 2).

JP 2002-369628 A Japanese Patent Laid-Open No. 2002-369631

  However, when using the above-mentioned conventional strut driving machine to drive a net-holding strut for winding a vine such as a long spider, it can be operated so as not to break the scissors when traveling with the traveling wheels positioned between the scissors. There was a problem that it was difficult for the pilot to work. Also, in the conventional strut driving machine, the left and right strut driving devices cannot be offset in the left-right direction with respect to the center of the vehicle body of the traveling carriage. , It is difficult to align the striking position because the gap between the struts is narrow. On the other hand, if the struts are driven with the left and right wheels straddling the scissors, it is easy to adjust the position of the left and right wheels. However, I couldn't drive a prop into the middle cage.

  The present invention has been made to solve such a problem, and an object of the present invention is to provide a strut driving machine capable of reducing work man-hours in strut driving and drawing operations.

In order to achieve the above object, the invention according to claim 1 is a strut driving machine (10) comprising a traveling part (11) and a strut driving part (20).
The strut driving portion (20) has a plurality of strut driving devices (43) arranged in parallel in the left-right direction,
Each of the plurality of strut driving devices (43) includes a strut gripping means (52) for gripping the strut (100) and a lifting drive means (53) for lifting and lowering the strut gripping means (52).
It is characterized by comprising operating means (83) for simultaneously raising and lowering the plurality of raising and lowering drive means (53) in a state where the pillars (100) are held by the respective pillar holding means (52).

  The invention according to claim 2 is the strut driving machine according to claim 1, wherein the driving devices at the left and right end portions of the plurality of strut driving devices are foldably supported on the inner side in the left-right direction. Features.

According to a third aspect of the present invention, in the post driving machine according to the first aspect, when the post gripping means (52) grips the post (100), a gauge that can come into contact with the upper end surface of the post (100) ( 72)
When the support (100) gripped by the support gripping means (52) is driven by the elevating drive means (53), the height of the support (100) is aligned by the gauge (72). It is characterized by that.

  The invention according to claim 4 is the prop driving machine according to claim 3, wherein the gauge (72) is attached so that its position in the height direction can be adjusted.

  According to a fifth aspect of the present invention, in the strut driving machine according to any one of the first to fourth aspects, each of the strut driving devices (43) can detect a strut (100) that has already been driven. 105).

  The invention according to claim 6 is the strut driving machine according to claim 5, wherein the detecting means (105) is configured such that the strut driving portion (20) is substantially horizontally arranged in the strut (100) already driven. A stop position signal and a notice position are detected by detecting a coincident stop position and a notice position ahead of the stop position by a predetermined amount.

  In addition, the code | symbol in the parenthesis mentioned above is for contrasting drawing, Comprising: This invention is not limited at all.

  According to the first aspect of the present invention, since the plurality of elevating drive means are simultaneously driven to move up and down in a state where the support pillars are held by the respective support gripping means, the number of work man-hours in driving and pulling out the support pillars Can be reduced.

  According to the second aspect of the present invention, the driving devices at the left and right end portions of the plurality of strut driving devices are supported so as to be foldable inward in the left-right direction. The width can be reduced for compact storage.

  According to the third aspect of the present invention, when the column holding means is made to hold the column, it has a gauge that can come into contact with the upper end surface of the column. It can be arranged almost constant.

  According to the invention which concerns on Claim 4, since the gauge is attached so that the position of a height direction can be adjusted freely, the height of the strut | stuck | injection driven can be adjusted arbitrarily.

  According to the invention which concerns on Claim 5, since each strut driving device has a detection means which can detect the strut already driven, it can drive a strut at a predetermined interval.

  According to the invention of claim 6, the detecting means detects a stop position where the strut driving portion substantially coincides with the struts already driven in the left-right direction, and a notice position ahead of the stop position by a predetermined amount. Since the stop position signal and the notice position are transmitted, it is possible for the operator to decelerate the aircraft traveling speed based on the signal that the aircraft has arrived at the notice position, and then accurately stops at the stop position. be able to.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is an overall side view of a strut driving machine. The strut driving machine 10 includes a tractor (traveling unit) 11 having a traveling machine body 18 supported by front wheels (not shown) and a rear wheel 12, and the rear. At the rear of the wheel 12, there is a strut driving portion 20 supported so as to be movable up and down via a three-point link mechanism 15 having left and right lower links 13, 13 and a top link (described later). The left and right lower links 13 and 13 are connected to a lift arm 17 via left and right lift rods 16 and 16.

  Note that the power output from the PTO shaft 84 of the tractor 11 is transmitted to the input shaft 86 on the column driving portion 20 side via the yoke joint 85. The transmitted power is transmitted to the hydraulic pump 89 via a belt (not shown) spanned between the pulleys 87 and 88 from the input shaft 86, and the hydraulic pump 89 is driven to perform various operations on the column driving unit 20 side. Supplied to the hydraulic cylinder. The hydraulic pump 89 is supplied with hydraulic oil from a hydraulic oil tank 90.

  In the present embodiment, as the top link, a hydraulic cylinder (tilt link) 14 as a forward / backward tilt adjusting means is provided between the rear portion of the tractor 11 and a hitch frame 31 described later, and the hydraulic cylinder 14 is expanded and contracted. By doing so, it is possible to control the inclination of the strut driving portion 20 in the front-rear direction with respect to the traveling direction of the tractor 11. Further, either one of the left and right lift rods 16 and 16 (right side in the figure) is provided with a hydraulic cylinder 16a as a right and left inclination adjusting means, and the hydraulic cylinder 16a is expanded and contracted to drive a column. The portion 20 can be tilt-controlled in the left-right direction with respect to the traveling direction of the tractor 11.

  As shown in FIGS. 2A and 2B and FIG. 3, the strut driving unit 20 has left and right hitch frames 31, 31 connected via a three-point link mechanism 15, and a left-right direction with respect to the aircraft traveling direction. And a deck portion 19 that is substantially L-shaped in side view, in which three strut driving devices 43, 43, 43 are arranged in parallel. Horizontal shafts 29 and 30 are slidably passed through the hitch frames 31 and 31 in the vertical position, and left and right vertical frames 22 and 23 are fixed to the left and right ends of the horizontal shafts 29 and 30, respectively. . Longitudinal rods 24 and 25 are integrally fixed to the vertical frames 22 and 23.

  Also, below the left and right hitch frames 31, 31, a hydraulic cylinder 35 is provided as a moving means that can move the strut driving portion 20 to a position offset in the left-right direction with respect to the traveling direction of the tractor 11. Yes. The cylinder portion of the hydraulic cylinder 35 is fixed to the left hitch frame 31 in FIG. 3, and the operating rod 35 a is fixed to the vertical frame 22. Three horizontal stays 26, 27, and 28 are fixed to the rear portions of the vertical frames 22 and 23 at predetermined positions in the vertical direction. Accordingly, when the hydraulic cylinder 35 is operated, the vertical frames 22 and 23, the horizontal shafts 29 and 30, and the horizontal stays 26, 27, and 28 slide integrally with the hitch frame 31 in the left-right direction.

  As shown in FIG. 4, the deck unit 19 includes the vertical frames 22, 23 and the horizontal stays 26, 27, 28 on the front side, and a deck frame 44 integrally extending rearward from the horizontal stay 28. Have. In addition, a base end portion 42 a of a support strut 42 connected to the vertical rods 24, 25 is connected to the upper portions of the vertical rods 24, 25 integrally fixed to the vertical frames 22, 23. With this strut striking portion 42, a large number of struts 100 can be stood and continuous strut driving work can be performed efficiently.

  The horizontal stays 26, 27 are provided with horizontal rods 39, 40 extending in the left-right direction through joint portions 37, 38 symmetrically on the left and right sides. 46 is fixed (see FIG. 3), and the column 46 is attached to the frame 46 on the center side among the three column driving devices 43. Further, the left and right horizontal rods 39 and 40 are respectively provided with frames 47 and 47 adjacent to and opposed to each other, and between the frames 47 and 47, two left and right end portions of the three strut driving devices 43 are disposed. Two strut driving devices 43, 43 are attached. Thus, above the deck frame 44, the three strut driving devices 43, 43, 43 arranged in parallel in the left-right direction of the traveling machine body 18 are disposed.

  Between the frames 47, 47, shafts 78, 79 are arranged in the vertical direction, and the two column driving devices 43, 43 at the left and right end portions of the three column driving devices 43 are arranged on the shafts 78, 79. Are slidable in the axial direction. The two strut driving devices 43 at the left and right end portions can be moved in the left-right direction with respect to the central column driving device 43 by the operation of the adjusting means 77. That is, the two strut driving devices 43 at the left and right end portions are supported by the screw shaft 49 via the screw receiving portion 80, and the adjusting means 77, 77 is a handle with a wheel that can operate the screw shaft 49. By operating the handle 81, the two strut driving devices 43 at the left and right end portions can be moved in the left-right direction with respect to the central strut driving device 43.

  The deck frame 44 has a frame shape extending rearward, and a metal net member 45 is laid on the upper surface. An operator rides on the deck frame 44 to drive or pull out the support column 100. Do work. The wire mesh member 45 is provided at a position recessed below the deck frame 44. With this structure, when the large number of columns 100 are accommodated between the column struts 42, the columns 100 falls are prevented. In the deck frame 44, a central portion corresponding to the central column driving device 43 and a left and right portion corresponding to the two left and right column driving devices 43 are connected via a joint portion 41, respectively. Yes. Then, as will be described later (see FIG. 19), the left and right side portions are folded inward in the left-right direction with the two left and right strut driving devices 43 facing the rear of the machine body, and then the joint part 41 is moved upward. It can be folded inward by operating it.

  Further, in FIG. 4, a column 100 is held by a column holding means 52 (described later) at the upper part of the left and right sides of each support frame 51 of the three column driving devices 43 arranged in parallel in the horizontal direction. In this case, a gauge 72 that can come into contact with the upper end surface of the support column 100 is provided. The gauge 72 includes a support rod 73 extending in the vertical direction along the support frame 51, and a contact plate 75 fixed to the upper end of a pole 74 slidably fitted on the support rod 73. And the height position of the contact plate 75 can be arbitrarily adjusted. Then, when driving the support column 100 into the field, the upper end surface of the support column 100 is contacted with the contact plate 75 and then driven, so that the stroke of the hydraulic cylinder 53 is constant, so that the upper end surface of the support column 100 after driving is fixed. The height can be made almost constant.

  In addition, the gauge 72 has a function as a safety guard for protecting the worker when the worker gets on the deck frame 44 in addition to the role of uniformly aligning the upper end position of the support column 100.

  As shown in FIG. 5, the joint portions 37 and 38 connecting the horizontal stays 26 and 27 and the horizontal rods 39 and 40 are covered on the outer peripheral side with cover members 32 and 33, and the cover members By shifting 32 and 33 to the right in the figure, the joint portions 37 and 38 are exposed, and in this state, the horizontal rods 39 and 40 can be bent inward in the left-right direction with respect to the horizontal stays 26 and 27. Therefore, the left and right strut driving devices 43 are foldable inward in the left-right direction toward the rear of the machine body by the joint portions 37 and 38 (see FIG. 19).

  As shown in FIGS. 6 and 7, the strut driving device 43 includes a strut gripping means 52 for gripping the strut 100 to be driven into the field, and a strut gripping means 52 inside the support frame 51. A hydraulic cylinder 53 is mounted as an elevating drive means for elevating and lowering the guide bar. The hydraulic cylinder 53 is arranged so that the operating direction of its operating rod is in the vertical direction, the upper part is supported by the support frame 51, and the lower part is fixed to the moving frame 54 of the column gripping means 52. As a result, the moving frame 54 is movable up and down along the guide bar while being suspended and supported by the hydraulic cylinder 53.

  As shown in FIG. 8, the strut gripping means 52 includes an electric motor 55, a sandwiching portion 56 that sandwiches a strut that is driven into the field by driving the electric motor 55, and a moving frame 54. The moving frame 54 has a pair of upper and lower support plates 57 and 58 and a plurality of vertical axes 59 that keep the interval therebetween, and the clamping portion 56 is fixed between the support plates 57 and 58. It has a clamping shaft 60 and four sets of clamping claws 61 supported by the clamping shaft 60 so as to be rotatable and alternately positioned at predetermined intervals in the axial direction. A roller 62 is rotatably supported on the other end portion of the clamping claws 61.

  The electric motor 55 is placed on the support plate 57, and a motor shaft 55 a rotatably supported between the support plates 57 and 58 is connected to a cam shaft 64 via a joint portion 63. Yes. A plurality of cams 65 are fixed to the cam shaft 64. Although not shown, a spring is stretched between the pair of clamping claws 61, and the spring biases the holding portion 61a (see FIG. 9) of the clamping claw 61 in the direction of opening and cams the roller 62. 65 is in pressure contact.

  Then, when the cam shaft 64 is driven by the electric motor 55 and the cam 65 rotates 180 degrees with the holding portion 61a of the clamping claw 61 opened, the roller 62 is pushed by the cam 65 and a pair of clamping claw is formed. As shown in FIG. 9A, 61 is rotated in a direction to close the holding portion 61a. Thereby, the support | pillar 100 currently hold | maintained at the holding part 61a of the clamping nail | claw 61 is open | released.

  In addition, when the cam shaft 64 is driven by the electric motor 55 and the cam 65 rotates 180 degrees with the holding portion 61 a of the clamping claw 61 closed, the cam surface of the cam 65 moves away from the roller 62. As shown in FIG. 9B, the holding claws 61 are rotated in the opening direction by the tension of a spring (not shown). At this time, when the support column 100 is held by the holding portion 61 a of the clamping claw 61, the clamping claw 61 opens the column 100.

  A limit switch 76 is arranged at the lower end position of the support frame 51 (see FIG. 4), and the lower end of the moving frame 54 is detected by the limit switch 76 (the upper end is detected). A limit switch is provided separately).

  Next, operation panels 66 are attached to the left and right other sides of the respective support frames 51 of the column driving device 43 (see FIG. 4). As shown in FIGS. 10A and 10B, an operation panel 67 is disposed on the operation panel 66, and the clamping claw 61 of the column gripping means 52 is manually closed on the operation panel 67. The chuck switch 68 that grips the support column, the manual opening / closing switch 69 that can be stopped by manually opening and closing the clamping claw 61, the changeover switch 70 that switches between manual and automatic, and the clamping claw 61 in an emergency. And an emergency stop switch 71 for urgently stopping the opening and closing.

  When the changeover switch 70 is set to the center position, the column gripping means 52 can be manually changed over. Further, when the changeover switch 70 is set to “lowering open” which will be described later automatically, after the strut 100 is driven by operating the operation lever 83 which will be described later at the time of driving, the clamping claw 61 is automatically set at the end of driving. Opened. In addition, when “up / close” described later in the automatic mode is set, the column 100 is pulled out from a state where the column gripping means 52 is set in a lowered position, which is a predetermined position, by an operation of an operation lever 83 described later at the time of extraction. The clamping claws 61 remain closed and then opened manually. This is because if the clamping claws 61 are opened in the pulled out state, the support column 100 will fall.

  At this time, in the present embodiment, an operation lever 83 is provided as an operation means for driving the three hydraulic cylinders 53 to move up and down substantially simultaneously while holding the three support pillars 100 by the three support gripping means 52. ing. That is, for example, in each strut driving device 43, the chuck switch 68 is operated to grip the struts 100 one by one by the strut gripping means 52 in a state where the upper end of the strut 100 is in contact with the gauge 72. If the operation lever 83 is operated, the three struts 100 can be driven simultaneously.

  As described above, in the conventional case, the total of the three steps of sandwiching the strut 100 individually by each strut driving device 43, 43, 43 and the three steps of individually driving or pulling out the three struts 100. While six steps are required, according to the present embodiment, the three struts 100 are individually set in each strut driving device 43, 43, 43, and each chuck switch 68 is operated to be clamped 3 Four processes in total, one process and one process in which three struts 100 are driven or pulled out simultaneously by operation of the operation lever 83, can reduce the work man-hours.

  For example, each strut driving device 43 is provided with a start switch (not shown), and the struts 100 can be driven one by one by turning them on.

  FIG. 11A is a diagram showing a drawing device 93 that is used when pulling out the support column 100. The drawing device 93 is provided on a fixed pipe 94 that is held by the holding claws 61, and an upper portion of the fixed pipe 94. A projecting rod 95 fixed so as to extend in the horizontal direction, and a pulling jig 97 connected to the projecting rod 95 via a chain 96. The pulling jig 97 has two rollers 98 and 98 attached adjacent to the bracket 99. The support column 100 is inserted between the rollers 98 and 98 (A state), and the hydraulic cylinder 53 is extended. And pull out (B state). As described above, the pulling device 93 is used to pull out the support column 100 because the position of the support column 100 does not necessarily match the holding portion of the holding claw 61, so that a slight misalignment is corrected by the chain 96. It is.

  12A to 12D are views showing a plurality of other embodiments of the above-described extraction jig 97. FIG. These are all applications of the parallel link mechanism 107, in which each link is connected by four pins 120, and a spring 108 is stretched between the two pins 120, 121 is an opening / closing operation lever It is.

  FIG. 12 (a) uses two rollers 109 for the holding part of the support column 100, and holds the support column 100 between the rollers 109, 109. FIG. 12 (b) shows the holding part of the support column 100. Two gripping members 110 are used, and the support column 100 is gripped between the gripping members 110 and 110. FIG. 12C shows gripping members 111 and 112 having different shapes opposed to each other and grips the support column 100 between the gripping members 111 and 112. FIG. The members 113 and 113 are shifted up and down to face each other, and the support column 100 is gripped between the gripping members 113 and 113.

  Next, as shown in FIGS. 3 and 4, detection means 105 that can detect the struts 100 that have already been driven are provided at both ends of the deck frame 44 in the left-right direction. The detection means 105 includes a base plate 101 projecting laterally from the deck frame 44, a support shaft 102 planted from the base plate 101, and a torsion spring (not shown) rotatably mounted on the support shaft 102. The mounting plate 103 is urged in one direction by the sensor plate 104, the sensor bar 104 is fixed to the mounting plate 103 with a bolt or the like, and the sensor (not shown) detects the rotation of the sensor bar 104. The mounting plate 103 has a tip portion branched in a V-shape, and by attaching the sensor bar 104 to any one of the branched portions, the mounting plate 103 can be selected for detection during forward travel and for detection during reverse travel ( (See FIG. 3). That is, as shown in FIG. 3, the sensor bar 104 is attached to the forward mounting plate 103 when the support is driven, and the sensor bar 104 is attached to the backward mounting plate 103 when the support is pulled out.

  At the time of the second and subsequent driving, for example, the sensor bar 104 comes into contact with any one of the left and right columns 100 of the previous three columns 100 that have already been driven, so that the second and subsequent columns are driven. Since the interval can be detected, the struts 100 can be accurately driven at a predetermined interval in the left-right direction at the time of driving. Further, when pulling out the strut 100 that has already been driven, the sensor bar 104 contacts the strut 100 that has already been driven by moving the tractor 11 backward, so that the position of the strut 100 can be accurately detected. For this reason, the tractor 11 can be stopped at the detection position, and the extraction work can be performed efficiently.

  The detection of the support column 100 by the detection means 105 described above is performed by the sensor bar 104 rotating about the support shaft 102 and the rotation being detected by the sensor. In this embodiment, the rotation amount of the sensor bar 104 is detected. This is detected in two stages. That is, as detection in the first stage, when the sensor bar 104 first comes into contact with the support column 100 and detects the amount of rotation of the sensor bar 104, it is determined that the support column driving unit 20 has come to a position a predetermined amount before the target position. If the sensor bar 104 is in contact with the support column 100 and detects the amount of rotation after the detection of the first step described above (detection position) and the detection of the subsequent second step, the support unit 20 is the target. A stop position is detected (stop position).

  In this case, the control unit of the tractor 11 is provided with a display panel 106 as shown in FIG. 13, and various lamps provided on the display panel 106 are turned on or off to detect the detection unit 105. Can be recognized. When the strut 100 is driven or pulled out, the tractor 11 is moved forward or backward on the display panel of the display panel 106, and the strut driving portion 20 substantially coincides with the strut 100 already driven in the left-right direction. A forward stop lamp 114 and a reverse stop lamp 115 that are lit at a position (a stop position of the tractor) to notify the operator, and a notification lamp 116 for detecting a notification position that is a predetermined amount before the stop position and notifying the operator. And are arranged.

  The display panel uses either an offset switch 117 for offset-moving the strut driving portion 20 in the left-right direction with respect to the tractor 11 or detection means 105, 105 provided at the left and right ends of the strut driving portion 20. A selection switch 118 for selecting whether or not to perform and a switch 119 for tilting the strut driving portion 20 back and forth with respect to the tractor 11 are arranged. At this time, either the left or right detection means 105 is used depending on which side the strut 100 has already been driven on, and on which side the strut 100 is newly driven.

  Next, the present embodiment will be described based on the flowcharts of FIGS. In addition, when performing the driving | running | working operation | work or drawing | extracting operation | work of the support | pillar 100, the operator who steers the tractor 11 and the operator who works on the deck part 19 of the support | pillar drive-in part 20 board a boarding.

  First, in FIG. 14, in S <b> 1, the strut driving unit 20 determines whether or not the position in the left-right direction with respect to the tractor 11 is OK. To do. That is, as shown in FIG. 16, the rear wheel 12 of the tractor 11 travels between the ridges 21, but since the long potato seed 122 is planted in the ridge 21, the seed bud 122 is not damaged. The strut 100 cannot be driven into the central portion of the flange 21. Therefore, in order to offset the driving position of the column 100 from the central portion of the rod 21, the column driving unit 20 is offset in the left-right direction with respect to the tractor 11.

  When striking the strut 100, the strut driving device 43 is set in the ascending position in advance, and after the striking, it moves to the descending position and the nail 61 is automatically opened ("lowering opening" described later). Then, the column driving device 43 is returned from the lowered position to the raised position in preparation for the next column driving operation. Conversely, when pulling out the column 100, the column driving device 43 is set in the lowered position in advance, and after the extraction is completed, the holding claw 61 remains closed and the column driving device 43 moves to the raised position (described later). After that, the holding claw 61 is opened by the manual opening / closing switch 69 (see FIG. 10) to remove the support post, and then the support driving device 43 is moved from the raised position to the lowered position in preparation for the next support pull-out operation. Return to.

  In S2, the offset switch 117 of the display panel 106 (see FIG. 13) arranged in the control unit of the tractor 11 is operated to the left or right. Then, the hydraulic cylinder 35 below the hitch frame 31 is actuated (S3), and as shown in FIG. 17, the strut driving portion 20 moves in the left-right direction with respect to the tractor 11 (hitch frame 31). In this case, after aligning the center-side strut driving device 43 among the three strut driving devices 43, the left and right ends of the strut driving device 43 are aligned by rotating the handle 81. Make fine adjustments.

  Next, in S4, it is determined whether the strut driving unit 20 is parallel to the traveling direction (front-rear direction) or the left-right direction of the tractor 11. The reason is that the column 100 cannot be driven substantially perpendicular to the field scene when the field scene is inclined in the front-rear direction. At this time, the detection of the inclination angle in the front-rear direction or the left-right direction of the strut driving unit 20 is performed by the detectors 123 and 124 provided in the three strut driving devices 43, respectively. That is, as shown in FIGS. 4 and 16, the detectors 123 and 124 have pendulum-like members, and the detector 123 of the center column driving device 43 detects the left and right inclination angles, and the column at the left and right ends. The detector 124 of the driving device 43 detects the front / rear inclination angle.

  Therefore, when the farm scene is tilted in the front-rear direction, the tilt switch 119 of the display panel 106 (see FIG. 13) is operated to “up side” or “down side” (S5). Then, for example, when operated to the “raising side”, the lift arm 17 in FIG. 1 moves to the raising side, and the hydraulic cylinder (tilt cylinder) 14 expands and contracts or the lift rod 16 expands and contracts (S6). As shown, the strut driving portion 20 is inclined and moved upward with respect to the traveling direction of the tractor 11. When the tilt switch 119 is operated to the “down side”, the strut driving unit 20 similarly moves to the down side.

  If the tilt setting is OK, in S7, manual operation, driving (lowering open), and drawing (up / closing) are selected. At this time, as shown in FIG. 10, the changeover switch 70 of the operation panel 66 is selected from “manual”, automatic “raising / closing (pulling)”, and “lowering / opening”. Here, “lifting and closing” means that the strut driving device 43 is set to the lowered position before the work starts when the strut 100 is pulled out, and after the pulling is completed, the strut driving device 43 is moved to the raised position and is held. The claw 61 is held in a closed state, and conversely, “lowering open” means that the strut driving device 43 is set to the raised position before starting the work when the strut 100 is driven, and the driving is completed. After that, it means that the strut driving device 43 is moved to the lowered position and the clamping claws 61 are automatically opened. For example, when “manual” of the changeover switch 70 is selected when the support column 100 is driven, first, the three support device driving devices 43 are set in the raised position in advance, and the operator holds the nail claws of the three support device driving devices 43. When the three columns 100 are set between 61 and 61 and the chuck switch 68 is pushed (S8), the clamping claws 61 and 61 of the clamping unit 56 are closed and the three columns 100 are respectively chucked. Further, when the manual opening / closing switch 69 is operated, the holding claw 61 can be opened / closed at an arbitrary angle (S9). Next, when the operation lever 83 (see FIG. 4) is operated, the hydraulic cylinders 53 are activated, the support gripping means 52 is moved downward, and the three supports 100 are driven simultaneously. At that time, after the driving of the struts is completed, the clamping claws 61 and 61 are in a closed state. To open the clamping claws 61 and 61, the manual opening / closing switch 69 is separately operated. When the operating lever 83 is operated to the ascending side, each hydraulic cylinder 53 is activated, and the column gripping means 52 is moved upward to return to the original position.

  Further, in the case where the support 100 is driven and the changeover switch 70 is selected to be automatically “lowering and opening” (S7), the operator sets 3 between the holding claws 61 and 61 of the three support driving devices 43, respectively. When the column 100 is set (S10), the chuck switch 68 is pushed (S11), the clamping claw 61 is closed (S12), and the operation lever 83 (see FIG. 4) is operated (S13). The hydraulic cylinder 53 operates simultaneously (S14), and the support column 100 is driven (S15). Next, the holding claws 61 of the three strut driving devices 43 are simultaneously opened at the lowered position (S16).

  Subsequently, the tractor 11 moves forward to drive the next column 100 (S17), and the sensor bar 104 comes into contact with the first column 100 that has already been driven. It is detected that the vehicle has reached the previous notice position, and the notice lamp 116 is turned on by this detection. By this lighting, the pilot knows that it is close to the target work position. Therefore, when the tractor 11 is further moved forward by a small amount and comes to a position where the sensor bar 104 is completely in contact with the support column 100, that is, a position (stop position) that is substantially coincident with the support column 100 in the left-right direction, Is turned off (S18), and the forward stop lamp 114 is lit (S19). Therefore, the operator stops the tractor 11 at that position (S20), and operates the operating lever 83 to the upward side at this position, so that the three hydraulic cylinders 53 are simultaneously raised (S21). In this case, the left or right sensor bar 104 is used by selecting the selection switch 118 of the display panel 106 in FIG. Note that the column spacing is set by the sensor bar 104 at the time of driving from the second row. At first, the columns 100 are not driven to either the left or right, so the column spacing is set using a measuring instrument or the like. Type in.

  Next, when pulling out the strut 100 that has already been driven, the changeover switch 70 is selected to be automatically "raised / opened" in S7. In this case, the tractor 11 is moved backward, and the sensor bar 104 is replaced with the reverse mounting plate 103 (see FIG. 3). Then, the tractor 11 moves backward (S22), the warning lamp 116 turns off (S23), the reverse stop lamp 115 lights (S24), and the driver stops the tractor 11 at that position (S25). The above is the same as S18 to S21 described above.

  Next, when the operation lever 83 is operated to the lower side, each hydraulic cylinder 53 is activated and the column gripping means 52 is moved downward, so that the respective holding claws 61 are set on the three columns 100 driven (S26), When the chuck switch 68 is pressed (S27), the clamping claw 61 is closed (S28), and when the operation lever 83 (see FIG. 4) is operated upward (S29), the three hydraulic cylinders 53 are simultaneously operated. (S30), the support column 100 is pulled out (S31). Next, when the holding claws 61 of the three strut driving devices 43 are opened and the operation lever 83 is operated downward (S32), the three hydraulic cylinders 53 are simultaneously lowered (S33).

  FIG. 15 is a flowchart showing an embodiment in the case of manually pulling out the strut 100 that has already been driven using the pulling device 93. Since the procedure from S1 to S21 is the same as that in the above-described embodiment in FIG. 14, the description thereof is omitted.

  That is, in this embodiment, the sensor bar 104 is replaced with the reverse mounting plate 103 (see FIG. 3). Then, in S7, the changeover switch 70 (see FIG. 10) is selected to “manual”, and as shown in FIG. 11, if the pulling device 93 is set on the holding claw 61 and the chuck switch 68 is pressed, the holding is performed. The extraction device 93 is attached to the nail 61 (S8, S40). In this state, similarly to S22 to S25 described in FIG. 14, the tractor 11 is moved backward (S22), the warning lamp 116 is turned off (S23), the reverse stop lamp 115 is turned on (S24), and the tractor is moved. The 11 pilot stops the aircraft at that position (S25).

  Next, in the state where the operation lever 83 is operated to the lowering side and the respective column gripping means 52 are lowered, the three extraction jigs 97 are respectively set under the three columns 100 that have already been driven. (S41) Next, when the operation lever 83 (see FIG. 4) is operated to the up side (S42), the three hydraulic cylinders 53 are raised substantially simultaneously (S43), and the three struts 100 are substantially simultaneously raised. It is pulled out (S44). Thus, after pulling out the three columns 100, the respective extraction jigs 97 are removed from the columns 100 (S45), and the operation lever 83 is operated to the lower side to lower the holding part 56 (S46).

  In FIG. 19, the driving operation or the drawing operation is completed, and the driving devices 43 and 43 at the left and right end portions of the three strut driving devices 43 are folded inward in the left-right direction toward the rear of the body, and left and right ends. It is a figure which shows the state which folded the deck frames 44 and 44 of the part toward the upper side of the body in the inner arrow direction. In this way, by folding the two strut driving devices 43 at the left and right end portions and the deck frame 44 at the left and right end portions inward, the left and right widths are reduced when traveling on the road or during storage, etc. It is possible to run or store on the road in a compact state.

  As described above, according to the present embodiment, the wheel 12 of the tractor 11 is positioned between adjacent crop planting positions, and the right and left are shifted to a position (offset) arbitrarily shifted from the crop planting position. It becomes possible to move, and it becomes possible to drive the support | pillar 100 correctly in the target position. Moreover, in a reciprocating process in which driving is performed by reciprocating the field, it is also easy to adjust the horizontal driving position on the return path. For example, even if the intervals between adjacent crop planting positions are different, the two strut driving devices 43 at the left and right end portions of the three strut driving devices 43 can be finely adjusted in the left-right direction. Therefore, also in this case, it is possible to accurately drive the strut 100 to an arbitrary position.

  Further, as a work procedure when the strut 100 is driven or pulled out, if the operation lever 83 is operated in a state where the struts 100 are gripped by the three strut gripping means 52 one by one, the three hydraulic cylinders 53 are obtained. Since it is driven up and down at the same time, the three struts 100 can be driven or pulled out almost simultaneously just by operating the operation lever 83 once, so that the number of work steps can be reduced.

1 is an overall side view of a strut driving machine according to the present invention. (A) is a right side view of a strut driving portion, and (b) is a left side view. It is a top view of a support | pillar drive part. It is a rear view of a strut driving part. (A) is a partial top view of a support | pillar drive-in part, (b) is the rear view. It is a right view of a strut driving part. It is a left view of a strut driving part. It is a sectional front view of a support | pillar holding means. (A) is a top view of the state where the nail | claw was closed, (b) is a top view of the state where the nail | claw was opened. (A) is a top view of an operation panel, (b) is the side view. (A) is a top view of a support | pillar extraction apparatus, (b) is the front view. (A)-(d) is a front view of embodiment of a drawing jig | tool. It is a top view of a display board. It is a figure which shows the flowchart of this embodiment. It is a figure which shows the flowchart of this embodiment. It is a rear view in the state where a support was driven by a support driving device. It is a top view in the state where a strut driving part offset-moves in the left-right direction. It is a side view of the state where the strut driving part is inclined forward. It is a rear view of the state which folded the strut driving device of the left right side inside.

Explanation of symbols

10 Prop driving machine 11 Tractor (traveling part)
14 Hydraulic Cylinder 16 Lift Rod 16a Hydraulic Cylinder 20 Strut Placing Unit 35 Hydraulic Cylinder 43 Strut Placing Device 52 Strut Holding Means 53 Hydraulic Cylinder (Elevating Drive Means)
72 gauge 83 operation lever (operation means)
100 Strut 105 Detection means 104 Sensor bar 114 Forward stop lamp 115 Reverse stop lamp 116 Warning light

Claims (6)

In a strut driving machine comprising a traveling part and a strut driving part,
The strut driving portion has a plurality of strut driving devices arranged in parallel in the left-right direction,
Each of these plurality of strut driving devices has a strut gripping means for gripping the strut, and a lift drive means for lifting and lowering the strut gripping means,
In the state in which each of the support gripping means is gripped by a support, it is provided with operation means for simultaneously driving the plurality of lift drive means to move up and down.
A prop driving machine characterized by that. The driving devices at the left and right end portions of the plurality of strut driving devices are foldably supported on the inner side in the left-right direction.
The strut driving machine according to claim 1. When gripping the support column by the support column gripping means, it has a gauge that can come into contact with the upper end surface of the support column,
When the support gripped by the support gripping means is driven by the lifting drive means, the height of the support is aligned by the gauge.
The strut driving machine according to claim 1. The gauge is mounted so that its position in the height direction can be adjusted.
The strut driving machine according to claim 3. Each of the strut driving devices has detection means capable of detecting a strut that has already been driven.
The strut driving machine according to any one of claims 1 to 4, characterized in that: The detecting means detects a stop position where the strut driving portion substantially coincides with the already driven strut in the left-right direction, and a notice position ahead of the stop position by a predetermined amount, and a stop position signal and Sending the notice position,
The strut driving machine according to claim 5.

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