Stand device

Abstract

To provide a stand device that can be easily attached and detached.SOLUTION: A stand device 1 supports a farm work machine 2 when the farm work machine 2 is not used. The stand device 1 includes a right and left pair of stand body 91 to be detachably attached to a stand holder 33 of the farm work machine 2. Each stand body 91 is provided with a handle 92 that grips by an operator by one hand when the stand body 91 is attached to or detached from the stand holder 33 of the farm work machine 2. The handle 92 is located in the vicinity of the center of gravity G of the stand body 91.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a stand device for supporting an agricultural working machine.

Background Art

[0002] Conventionally, for example, when an agricultural working machine that is used by being connected to a tractor, which is a traveling vehicle, is not in use (when the connection to the tractor is released), as a stand device for supporting the agricultural working machine, for example, the one described in Patent Document 1 below is known.

[0003] And this conventional stand device is composed of a pair of left and right caster-equipped stands that are detachably attached to the agricultural working machine. This caster-equipped stand has a horizontally elongated portion in the front-rear direction, and an inclined upright portion continuously rises integrally from the front end portion of this horizontally elongated portion.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the conventional stand device, when attaching and detaching the caster-equipped stand to and from the agricultural working machine, there is no choice but to directly grip a part of the horizontally elongated portion of the caster-equipped stand with a poor weight balance. Therefore, it is difficult to take the weight balance, and there is a risk that the attaching and detaching work will be time-consuming.

[0006] One of the problems of the present invention is to provide a stand device that can easily perform the attaching and detaching work.

Means for Solving the Problems

[0007] The stand device according to an embodiment of the present invention is a stand device that supports the agricultural working machine when the agricultural working machine is not in use, and includes a stand body detachably attached to the agricultural working machine, and a handle provided on the stand body for gripping when attaching and detaching the stand body to and from the agricultural working machine.

[0008] Further, the stand device according to an embodiment of the present invention is a stand device that supports the agricultural working machine when the agricultural working machine is not in use, and includes a pair of left and right stand bodies detachably attached to the agricultural working machine, and handles provided on each of the pair of left and right stand bodies for gripping when attaching and detaching the stand body to and from the agricultural working machine. The handle provided on the left stand body among the pair of left and right stand bodies and the handle provided on the right stand body among the pair of left and right stand bodies can be brought into contact with each other.

[0009] Furthermore, the stand device according to an embodiment of the present invention is a stand device that supports the agricultural working machine when the agricultural working machine is not in use, and includes a stand body detachably attached to the agricultural working machine, and a mark provided on the stand body indicating the center of gravity position of the stand body.

Effect of the Invention

[0010] According to the embodiment of the present invention, the attachment and detachment work can be easily performed.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

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Figure 4

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Figure 6

Figure 7

Figure 8

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Figure 11

Figure 12

Figure 13

Figure 14

Embodiments for Carrying Out the Invention

[0012] One embodiment of the present invention will be described with reference to FIGS. 1 to 6.

[0013] Reference numeral 1 in the figure is a stand device. This stand device 1 supports the agricultural working machine 2 when the agricultural working machine 2 is not in use (when the connection with the tractor is released), for example, when it is connected to the rear part of a tractor (not shown) which is a traveling vehicle.

[0014] The agricultural working machine 2 is, for example, a lawn mower, which is connected to the rear part of a tractor and performs a lawn mowing operation, which is an agricultural operation, while moving forward (in the traveling direction) by the traveling of the tractor.

[0015] That is, the agricultural working machine (lawn mower) 2, while being connected to the rear part of the tractor, moves forward by the traveling of the tractor and cuts and shreds the grasses to be cut (for example, weeds, wheat straws, secondary ears, green manure, etc.). Note that this agricultural working machine 2 is an offset working machine that can be offset to the side of the tractor, that is, for example, to the right side.

[0016] The agricultural working machine 2 includes a mounting part 5 that is detachably connected (mounted) to a three-point link part (agricultural working machine mounting device) at the rear part of the tractor, a working part 6 that can be changed between a stored state and an offset state and can be changed between a horizontal posture and an inclined posture, and mainly performs a lawn mowing operation in a desired offset state, and a connecting part (offset mechanism part) 7 that connects the front and rear mounting part 5 and the working part 6.

[0017] In addition, this agricultural working machine 2 includes an operation part (not shown) such as a remote control operated by an operator on the tractor, a drive part 12 for moving the working part 6 to change the state and posture of the working part 6, a first detection part 13 for detecting the offset amount (state of the working part) of the working part 6 with respect to the tractor, a second detection part 14 for detecting the posture angle (posture of the working part) of the working part 6 with respect to the tractor, and a control part (control box) 15 for controlling the drive part 12 based on information from the first detection part 13, the second detection part 14, and the operation part, etc.

[0018] The drive unit 12 includes a first cylinder (offset cylinder) 16, which is a telescopic first drive means for offsetting that moves the working unit 6 in the left-right direction with respect to the mounting unit 5, and a second cylinder (tilt cylinder) 17, which is a telescopic second drive means for posture change that rotates the working unit 6 in the up-down direction about the rotation center axis (rotation fulcrum) 11 in the front-rear direction with respect to the connecting unit 7. Each of the cylinders 16 and 17 is, for example, an electric hydraulic cylinder. Further, each of the detection units 13 and 14 is, for example, a potentiometer, and both are disposed within covers 18 and 19.

[0019] Here, the working unit 6 can perform mowing operations not only in the offset state but also in the stored state where it is stored in the rear part of the tractor. The stored state means a state where the working unit 6 is located at the storage position behind the tractor (a position where substantially the entire working unit 6 is stored within the width of the tractor). The offset state means a state where the working unit 6 is located at an offset position shifted by a desired offset amount (movement amount) to the right side from the storage position behind the tractor.

[0020] The working unit 6 can move in the left-right direction with respect to the tractor (mounting unit) by extending and retracting the first cylinder 16 between the storage position and the maximum offset position, and can be positioned at these two positions and any position between these two positions.

[0021] Further, in the offset state, the working unit 6 can perform mowing operations in any posture, including a horizontal posture along the left-right direction and upward / downward inclined postures (an upward inclined posture with the left side lower and the right side higher and a downward inclined posture with the left side higher and the right side lower).

[0022] The working unit 6 can rotate in the up-down direction about the rotation center axis 11 in the front-rear direction with respect to the tractor (mounting unit) by extending and retracting the second cylinder 17 between the maximum upward position and the maximum downward position, and can be positioned at these two positions and any position (including the horizontal position) between these two positions.

[0023] The mounting portion 5 has a hitch frame 21 which is a mounting frame, and a three-point connection portion 22 detachably connected to the three-point link portion at the rear of the tractor is provided on the hitch frame 21. The three-point connection portion 22 has a top mast 24 holding a top pin 23 and a pair of left and right lower arms 26 holding lower pins 25.

[0024] Further, an input shaft holding portion 29 rotatably holding an input shaft 28 for inputting power from the tractor side is provided on the hitch frame 21. The input shaft 28 is connected to the PTO shaft of a tractor (not shown) via a joint, and inputs the power from the PTO shaft side to the agricultural work machine 2 side.

[0025] Furthermore, an arm attachment portion 30 is provided on the right side of the hitch frame 21, and a frame portion 31 extending longitudinally in the left-right direction is provided on the lower side of the hitch frame 21.

[0026] And stand holders 33 which are stand attachment portions having a U-shaped cross section are respectively provided at both left and right ends in the left-right direction of the frame portion 31. Each of the pair of left and right stand holders 33 has a fixing plate 34 fixed to the frame portion 31 and a pair of left and right opposing plates 35 protruding rearward from both side ends of the fixing plate 34 and spaced apart from each other.

[0027] A first recess 36 opening upward is formed at the upper end portions of both opposing plates 35, a second recess 37 opening downward is formed at the lower end portions of both opposing plates 35, and pin holes 38 are formed at the central portions in the vertical direction of both opposing plates 35.

[0028] The connecting portion 7 has a connecting arm (parallel link) 41 which is two rotating arms whose front end portions are rotatably attached to the arm attachment portion 30 via a shaft 46, and an arm attachment member 42 whose rear end portion of the connecting arm 41 is rotatably attached via a shaft 47.

[0029] Further, a rotation center axis 11 in the front-rear direction is fixed to the arm attachment member 42, and this rotation center axis 11 is held by the shaft holding member 45 of the working unit 6. That is, the working unit 6 can rotate in the vertical direction about the rotation center axis 11 in the front-rear direction fixed to the arm attachment member 42.

[0030] Then, the second detection unit 14 detects the rotation angle of the shaft holding member 45 with respect to the rotation center axis 11, in other words, the rotation angle of the working unit 6 with respect to the mounting unit 5, and transmits the information to the control unit 15. Further, the first detection unit 13 detects the rotation angle of the connecting arm 41 with respect to the mounting unit 5 and transmits the information to the control unit 15. Note that the first detection unit 13 is attached to the arm attachment portion 30 of the mounting unit 5, and the second detection unit 14 is attached to the shaft holding member 45 of the working unit 6.

[0031] The working unit 6 includes a working means 51 that performs a grass cutting operation while rotating in a predetermined direction (the direction of the arrow shown in FIG. 1), a cover means 52 that covers the working means 51, a pulley case 53 that is a first transmission case body attached to the left side surface portion of the cover means 52, and a gear case 54 that is a second transmission case body attached to the left side surface portion of the pulley case 53.

[0032] Further, the working means 51 includes a rotation shaft 56 in the left-right direction and a plurality of working claws, i.e., grass cutting claws 57, attached to the rotation shaft 56. A gauge roller 58, which is a ground wheel, is provided behind the working means 51.

[0033] Furthermore, an intermediate input shaft 60 is rotatably held by the gear case 54, and a power transmission means 61 for transmitting the power from the input shaft 28 is connected to the intermediate input shaft 60. Then, the power input from the power transmission means 61 to the intermediate input shaft is transmitted to the rotation shaft 56 of the working means 51 via a gear (not shown) in the gear case 54, pulleys 62, 63 in the pulley case 53, and a belt 64. As a result, the rotation shaft 56 rotates together with the grass cutting claws 57, and the grass cutting operation is performed.

[0034] Note that the belt 64 is wound around the driving pulley 62, the driven pulley 63, and the tension pulley 65, and the tension pulley 65 is biased by an elastic body 66. The biasing force by this elastic body 66 can be adjusted by a tension bolt 67.

[0035] On the other hand, when the agricultural working machine 2 is not in use and is supported by the stand device 1, the agricultural working machine 2 includes a cylinder stopper 71 which is a regulating member for regulating the contraction operation of the second cylinder (tilt cylinder) 17 under the influence of the self-weight of the cantilevered working part 6, and a fixing pin 72 which is a detachable fixing member for fixing the cylinder stopper 71 to the second cylinder 17. Note that the fixing pin 72 is a clip-attached pin composed of, for example, a pin part 73 and a clip part 74 attached to the pin part 73.

[0036] First, the second cylinder 17 has a cylinder body 76 and a rod 77 that moves forward and backward with respect to the cylinder body 76. The base end portion of the cylinder body 76 is rotatably attached to the cylinder attachment portion 78 of the cover means 52 via a pin 79, and the tip end portion of the rod 77 is rotatably attached to the cylinder attachment portion 80 of the arm attachment member 42 via a pin 81.

[0037] And the cylinder stopper (cylinder retainer) 71 is attached to the rod 77 of the second cylinder 17 by the fixing pin 72, and has a stopper main body portion 83 sandwiched between the cylinder body 76 and the arm attachment member 42, a pair of ear portions 84 projecting integrally from the stopper main body portion 83, and four leg portions 82 also projecting integrally from the stopper main body portion 83. The lower ends of these four leg portions 82 are in contact with the upper surface of the cover body 52 (see Fig. 3(a)).

[0038] Further, the stopper main body portion 83 has a box shape opening downward, and has a rod opening portion 85 into which the rod 77 of the second cylinder 17 can be inserted and removed, and a first pin hole 86 and a second pin hole 87 into which the pin portion 73 of the fixing pin 72 can be inserted and removed.

[0039] The hole 86 for the first pin is a hole into which the pin portion 73 of the fixing pin 72 is inserted when the agricultural working machine 2 is not in use (when the stand device 1 is in use). By inserting the pin portion 73 of the fixing pin 72 into this hole 86 for the first pin, the cylinder stopper 71 is releasably fixed to the rod 77 of the second cylinder 17 (see FIGS. 3(a) and (b)).

[0040] And when the cylinder stopper 71 is set in this way, even if the working part 6 in a cantilever state rotates downward about the rotation center axis 11 based on its own weight and the second cylinder 17 tries to contract, the contraction operation is restricted by the cylinder stopper 71, and as a result, the horizontal state of the working part 6 is maintained.

[0041] On the other hand, the hole 87 for the second pin is a hole into which the pin portion 73 of the fixing pin 72 is inserted when the agricultural working machine 2 is in use (when the stand device 1 is not in use). By inserting the pin portion 73 of the fixing pin 72 into this hole 87 for the second pin and the pin hole 38 of the stand holder 33, the cylinder stopper 71 is releasably fixed to the stand holder 33 (see FIG. 4).

[0042] That is, as shown in FIG. 4, when mowing grass using the agricultural working machine 2, the unnecessary cylinder stopper 71 is attached to the stand holder 33 by inserting its ear portion 84 into the first recess 36 and engaging it, and then fixed to the stand holder 33 using the fixing pin 72. Thereby, there is no need to store the unnecessary cylinder stopper 71 at another place during work, and there is no worry of losing it.

[0043] In addition, when the agricultural work machine 2 is made to stand independently using the stand device 1 after the mowing operation is completed, the cylinder stopper 71 is replaced with the rod 77 of the second cylinder 17. That is, when using the stand device 1, since it is necessary to attach the stand body 91 to the stand holder 33, the cylinder stopper 71 must be removed from the stand holder 33, and the removed cylinder stopper 71 is attached to the rod 77 of the second cylinder 17. Therefore, there is no need to worry about forgetting to replace the cylinder stopper 71 with the rod 77 of the second cylinder 17, and the cylinder stopper 71 can appropriately regulate the contraction operation of the second cylinder 17.

[0044] The stand device 1 includes a pair of left and right stand bodies 91 that are detachably attached to the stand holder 33 of the agricultural work machine 2, a handle 92 provided on each of these two stand bodies 91 and gripped by an operator with one hand when attaching and detaching the stand body 91 to and from the stand holder 33 of the agricultural work machine 2, and a fixing pin 93 that is a detachable fixing member for fixing the stand body 91 to the stand holder 33 of the agricultural work machine 2.

[0045] Note that the fixing pin 93 is the same as the above-mentioned fixing pin 72, and is, for example, a clip-attached pin composed of a pin portion 94 and a clip portion 95 attached to the pin portion 94. Also, the left and right stand bodies 91 are, for example, the same as each other.

[0046] As shown in FIG. 5, the stand body (caster-equipped stand) 91 has a horizontally long and square pipe-shaped horizontal portion 96 in the longitudinal direction, and a vertically rising portion 97 of the same square pipe shape continuously rises integrally and obliquely from the front end portion of this horizontal portion 96.

[0047] In addition, this inclined vertically rising portion 97 is inclined so that it is positioned more forward toward the upper end side, and has a pin hole 98 into which the pin portion 94 of the fixing pin 93 is insertably and removably inserted. And an engagement pin 99 that engages with the first recess 36 is fixed to the upper end portion of this vertically rising portion 97.

[0048] Furthermore, mounting plate portions 100 are fixed to the lower surfaces of both front and rear end portions in the front-rear direction of the horizontal portion 96, and casters 101 are attached to each of these mounting plate portions 100 by attaching tools 102. Note that a stopper 103 is provided on the front caster 101.

[0049] The handle 92 protrudes upward at an intermediate position in the front-rear direction of the horizontal portion 96, that is, at a position slightly closer to the front than, for example, the central portion in the front-rear direction, so as to be located near the center of gravity G of the stand body 91.

[0050] More specifically, as shown in FIGS. 5(a) and 5(b), the handle 92 is fixed at a position slightly closer to the front than the central portion in the front-rear direction at the center in the width direction of the upper surface of the horizontal portion 96 of the stand body 91 so as to be located above the center of gravity G of the stand body 91 in a side view and to coincide with the center of gravity G of the stand body 91 in a plan view.

[0051] Also, the handle 92 is, for example, a rod-shaped member bent into a U shape, and has a longitudinally extending horizontal portion (the portion to be gripped) 106 in the front-rear direction located above the center of gravity G of the stand body 91 in a side view, and vertical portions 107 connected to both front and rear end portions of this horizontal portion 106. Lower end portions of these vertical portions 107 are fixed to the upper surface of the horizontal portion 96 of the stand body 91. Thus, this handle 92 is located near the center of gravity G of the stand body 91. As is also apparent from FIG. 5(b), in a side view, the central portion in the front-rear direction of the horizontal portion (the portion gripped by the operator) 106 of the handle 92 is located above the center of gravity G of the stand body 91 (the same applies to the handle described later).

[0052] And because the handle 92 is located near the center of gravity G of the stand body 91, even when an operator grips the horizontal portion 106 of the handle 92 with one hand and lifts the stand body 91 with a poor front-rear weight balance into the air, the horizontal posture of the stand body 91 (the posture in which the horizontal portion 96 is positioned along the horizontal direction) is maintained. From this, it can be said that the handle 92 functions as a mark indicating the position of the center of gravity G of the stand body 91.

[0053] Incidentally, the length dimension L in the front-rear direction of the stand body 91 is, for example, 1000 mm or more, specifically about 1350 mm (see FIG. 1). Further, the weight of the stand body 91 is, for example, about 11 kg.

[0054] Next, the operation and the like of the stand device 1 will be described.

[0055] When the farming machine 2 is removed from the tractor after performing a mowing operation using the farming machine 2, the left and right stand bodies 91 of the stand device 1 are respectively attached to the farming machine 2.

[0056] That is, as shown in FIG. 6, the operator operates the three-point link portion of the tractor to raise the farming machine 2 to a desired height, and then holds the horizontal portion 106 of the handle 92 with one hand and lifts the stand body 91 upward from the placement surface 110 such as the ground. At this time, the stand body 91 is maintained in the same horizontal posture as when it is placed on the placement surface 110 without tilting in the front-rear horizontal direction.

[0057] Then, while holding the stand body 91 in the horizontal posture with one hand, the operator inserts the engagement pin 99 into the first recess 36 of the stand holder 33 from above and engages it, and then holds the fixing pin 93 with the remaining hand that is not holding the handle 92, and inserts the pin portion 94 into the second recess 37 of the stand holder 33 and the pin hole 98 of the stand body 91 to fix the stand body 91 to the stand holder 33.

[0058] In this way, the operator attaches the left and right stand bodies 91 to the left and right stand holders 33 of the farming machine 2 and fixes them with the fixing pins 93 respectively. After that, when the farming machine 2 is lowered by the three-point link portion of the tractor until the casters 101 of both stand bodies 91 are placed on the placement surface 110, the farming machine 2 is supported by both stand bodies 91.

[0059] In addition, even when removing the stand main body 91 from the stand holder 33, similar to the above-mentioned attachment case, the operator can hold the stand main body 91 with one hand through the handle 92 while maintaining a good weight balance, and it is easy for the operator to balance the weight of the stand main body 91.

[0060] Therefore, according to such a stand device 1, the operator can easily attach and detach the longitudinally long stand main body 91 in the front-rear direction, which has a poor front-rear weight balance and is relatively heavy, to the stand holder 33 of the agricultural working machine 2 by using the handle 92 located near the center of gravity of the stand main body 91. Thus, the attachment and detachment work does not take much time, and the attachment and detachment work can be performed easily and safely.

[0061] Note that the stand device 1 is not limited to the above-described one, and for example, the one shown in FIG. 7 may also be used.

[0062] The stand device 1 shown in this FIG. 7 supports the agricultural working machine 2 when the agricultural working machine 2 (rotary tiller) is not in use.

[0063] The agricultural working machine (rotary tiller) 2 is connected to the rear part of a tractor and performs tilling and soil preparation work, which is an agricultural operation, while moving forward (in the traveling direction) due to the traveling of the tractor.

[0064] And the agricultural working machine 2 includes a machine body 111 which is a mounting part detachably connected (mounted) to the three-point link part at the rear of the tractor, a tilling part 112 which is rotatably provided on the machine body 111 and performs tilling work while rotating in a predetermined direction (the direction of the arrow shown in FIG. 7), and a soil leveling part 113 which is vertically rotatably provided on the machine body 111 and performs soil leveling work behind the tilling body 112.

[0065] In addition, this agricultural working machine 2 includes a gauge wheel means 114 for adjusting the tilling depth of the tilling body 112 and a ground pressure adjusting means 115 for adjusting the ground pressure of the soil leveling body 113.

[0066] The machine body 111 has a three-point hitch portion 116 that is detachably connected to the three-point hitch portion at the rear of the tractor. This three-point hitch portion 116 has a top mast 118 that holds a top pin 117 and a pair of left and right lower arms 119 that hold lower pins (not shown).

[0067] Also, the machine body 111 has an input shaft 120 for inputting power from the tractor side, and this input shaft 120 is connected to the PTO shaft of the tractor via a joint (not shown).

[0068] Furthermore, the machine body 111 has stand holders 121 that are a pair of left and right stand attachment portions. Each of these stand holders 121 has a pair of opposing plates 122 that face each other with a space therebetween. And at the upper end portions of both opposing plates 122, recesses 123 that open upward are formed, and pin holes 124 are formed near the lower end portions of both opposing plates 122.

[0069] The tilling body 112 has a rotating shaft 126 that is rotatably provided on the machine body 111, and a plurality of tilling claws 127 are attached to this rotating shaft 126. Also, the leveling body 113 has a leveling plate 128 that is pivotably provided on the machine body 111 in the vertical direction, and folding leveling plates 129 are attached to both left and right end portions in the lateral direction of this leveling plate 128 so as to be foldable and deployable.

[0070] The stand device 1 shown in FIG. 7 is the same as that shown in FIG. 1 above, and includes a pair of left and right stand bodies 131 that are detachably attached to the stand holders 121 of the agricultural working machine 2, handles 132 that are provided on each of these two stand bodies 131 and that an operator holds with one hand when attaching and detaching the stand bodies 131 to and from the stand holders 121 of the agricultural working machine 2, and a fixing pin 133 that is a detachable fixing member for fixing the stand bodies 131 to the stand holders 121 of the agricultural working machine 2.

[0071] The fixed pin 133 is the same as the above-described fixed pins 72 and 93, and is, for example, a pin with a clip composed of a pin portion 134 and a clip portion 135 attached to the pin portion 134. Also, the left and right stand bodies 131 are, for example, the same as each other.

[0072] The stand body (caster-equipped stand) 131 has a horizontally elongated rectangular pipe-shaped horizontal portion 136 in the front-rear direction, and from the front end portion of this horizontal portion 136, a vertically rising (including substantially vertical) rectangular pipe-shaped standing portion 137 of the same shape is continuously integrally rising.

[0073] Also, this vertically rising standing portion 137 has a pin hole (not shown) into which the pin portion 134 of the fixed pin 133 is insertable and removable. And at the upper end portion of this standing portion 137, an engaging pin 139 that engages with the concave portion 123 is fixed.

[0074] Furthermore, mounting plate portions 140 are fixed to the lower surfaces of both front and rear end portions of the horizontal portion 136 in the front-rear direction, and casters 141 are attached to each of these mounting plate portions 140 by attaching tools 142. Note that a stopper 143 is provided on the front caster 141. Also, a connecting portion 144 is erected on the front mounting plate portion 140, and this connecting portion 144 is connected and fixed to the standing portion 137.

[0075] The handle 132 is projected upward at an intermediate position in the front-rear direction of the horizontal portion 136 of the stand body 131, that is, at a position slightly forward of, for example, the center in the front-rear direction so as to be located near the center of gravity G of the stand body 131.

[0076] More specifically, the handle 132 is attached so as to be rotatable in the left-right direction via two semi-annular attached portions 145 at a position slightly forward of the center in the front-rear direction at the center in the width direction of the upper surface of the horizontal portion 136 of the stand body 131 so as to be located above the center of gravity G of the stand body 131 in a side view and to coincide with the center of gravity G of the stand body 131 in a plan view.

[0077] Further, the handle 132 is, for example, a rod-shaped member bent in a U shape with both ends bent in a ring shape, and has a longitudinally extending horizontal portion (gripping portion) 146 in the front-rear direction located above the center of gravity G of the stand body 131 in a side view, and ring-shaped mounting portions 147 connected to both ends of the horizontal portion 146 in the front-rear direction. Each of these mounting portions 147 is rotatably attached to a mounted portion 145 erected on the upper surface of the horizontal portion 136 of the stand body 131. Thus, the handle 132 is located near the center of gravity G of the stand body 131.

[0078] And because the handle 132 is located near the center of gravity G of the stand body 131, even when an operator holds the horizontal portion 146 of the handle 132 with one hand and lifts the stand body 131 with a poor front-rear weight balance into the air, the horizontal posture of the stand body 131 (the posture in which the horizontal portion 136 is positioned along the horizontal direction) is maintained. From this, it can be said that this handle 132 also functions as a mark indicating the position of the center of gravity G of the stand body 131, similar to the handle 92 described above.

[0079] The length dimension L of the stand body 131 in the front-rear direction is, for example, 800 mm or more, and specifically, for example, about 805 mm. Also, the weight of the stand body 131 is, for example, about 10 kg.

[0080] And also in the stand device 1 shown in this Fig. 7, similar to the one shown in Fig. 1 above, the operator can easily attach and detach the longitudinally extending stand body 131 with a poor front-rear weight balance and relatively heavy weight to the stand holder 121 of the agricultural work machine 2 by using the handle 132 located near the center of gravity of the stand body 131. Therefore, the attachment and detachment work does not take time, and the attachment and detachment work can be performed easily and safely.

[0081] Note that the agricultural work machine 2 supported by the stand bodies 91 and 131 is not limited to the lawn mower and rotary tiller described above, and may be, for example, a harrow, a ridging machine, a harvester, a fertilizer seeder, etc., arbitrarily.

[0082] In addition, the handles 92 and 132, which are the gripping parts held by the operator, are not limited to the above-described shapes, and various shapes are conceivable.

[0083] That is, even if the handle 92 is, for example, as shown in FIGS. 8 to 11, the same operational effects can be achieved.

[0084] The handle 92 shown in FIG. 8 is, for example, a bar-shaped member (which may be a plate-shaped member or the like; the same applies to the handles described later) bent into a trapezoidal shape, and has a longitudinally extending horizontal portion (gripping portion) 151 in the front-rear direction located above the center of gravity G of the stand body 91 in a side view, and inclined portions 152 connected to both front and rear ends of this horizontal portion 151 in the front-rear direction. The lower end portions of these inclined portions 152 are fixed to the upper surface of the horizontal portion 96 of the stand body 91. Thus, this handle 92 is located near the center of gravity G of the stand body 91.

[0085] The handle 92 shown in FIG. 9 is, for example, a bar-shaped member bent into an L shape, and has a longitudinally extending horizontal portion (gripping portion) 153 in the front-rear direction located above the center of gravity G of the stand body 91 in a side view, and a vertical portion 154 connected to the rear end portion of this horizontal portion 153. The lower end portion of this vertical portion 154 is fixed to the upper surface of the horizontal portion 96 of the stand body 91. Thus, this handle 92 is located near the center of gravity G of the stand body 91.

[0086] The handle 92 shown in FIG. 10 is, for example, in a T shape formed of a bar-shaped member, and has a longitudinally extending horizontal portion (gripping portion) 155 in the front-rear direction located above the center of gravity G of the stand body 91 in a side view, and a vertical portion 156 connected to the central portion in the front-rear direction of this horizontal portion 155. The lower end portion of this vertical portion 156 is fixed to the upper surface of the horizontal portion 96 of the stand body 91. Thus, this handle 92 is located near the center of gravity G of the stand body 91.

[0087] The handle 92 shown in FIG. 11 is, for example, a plate-like member bent into a U-shape, and has a longitudinally extending horizontal portion (portion to be gripped) 157 in the front-rear direction located above the center of gravity G of the stand body 91 in a side view, and vertical portions 158 connected to both ends of this horizontal portion 157 in the front-rear direction. The lower end portions of these vertical portions 158 are fixed to the upper surface of the horizontal portion 96 of the stand body 91. Thus, this handle 92 is located near the center of gravity G of the stand body 91. It should be noted that the shape shown in FIGS. 8 to 11 can also be applied to the handle (rotatable handle) 132.

[0088] Further, the stand device 1 may be, for example, the one shown in FIG. 12.

[0089] The stand device 1 shown in this FIG. 12 is capable of bringing into contact (including substantially contacting) with each other a handle 92 (92L) protruding upward from the left stand body 91 (91L) among the pair of left and right stand bodies 91 and a handle 92 (92R) protruding upward from the right stand body 91 (91R) among the pair of left and right stand bodies 91.

[0090] That is, as shown in FIG. 12(a), in the left handle 92 (92L), the lower part of the vertical portion 107 is fixed to the upper part of the right side surface of the horizontal portion 96 of the left stand body 91 (91L), and it is located near the center of gravity G of the left stand body 91 (91L).

[0091] Also, as shown in FIG. 12(b), in the right handle 92 (92R), the lower part of the vertical portion 107 is fixed to the upper part of the left side surface of the horizontal portion 96 of the right stand body 91 (91R), and it is located near the center of gravity G of the right stand body 91 (91L).

[0092] And, as shown in FIG. 12(c), when the left and right stand bodies 91 are brought close to each other, the horizontal portion 106 of the left handle 92 (92L) and the horizontal portion 106 of the right handle 92 (92R) come into contact with each other over the entire length.

[0093] Therefore, the operator can lift both the left and right stand bodies 91 simultaneously by gripping both horizontal portions 106 that are in contact (proximity) with each other with one hand. Thus, in this case, not only can the attachment / detachment operation of the stand device 1 be easily performed, but also the transportation operation of the stand device 1 can be easily performed.

[0094] In addition, in each of the above embodiments, the handle that the operator directly grips with one hand is provided near the center of gravity of the stand body. However, for example, as shown in FIGS. 13 and 14, instead of the handle, a mark 160 indicating the center of gravity position of the stand body 91 is provided near the center of gravity of the stand body 91, and the same operational effects can be achieved.

[0095] The mark 160 shown in FIG. 13 consists of a label 161 with a predetermined character (for example, "handle position", etc.) attached. The mark 160 shown in FIG. 14 consists of a label 162 with a predetermined color (for example, a prominent fluorescent color, etc.) attached. Note that the mark 160 is not limited to such labels 161 and 162, and may be, for example, a predetermined character, color, figure, etc. directly attached to the surface of the stand body, or a part of the stand body made into a cylindrical shape that is easy to grip.

[0096] When the operator grips the portion of the stand body 91 where the mark 160 is located (the portion where the labels 161 and 162 are attached) with one hand and lifts the stand body 91, the horizontal posture of the stand body 91 is maintained. Therefore, similar to the case where a handle (a member indicating the center of gravity position of the stand body) is provided, the operator does not have trouble with the attachment / detachment operation of the stand body 91 to the stand holder 33 of the agricultural work machine 2 and can perform the attachment / detachment operation easily and safely.

[0097] Note that the stand device is not limited to one having a pair of left and right stand bodies, and the number of stand bodies is arbitrary. For example, it may be one or three or more.

[0098] Also, for example, a configuration in which the handle is detachably provided on the stand body, a configuration in which the handle is provided on the stand body so that its front-rear position can be adjusted, etc. may be used.

[0099] Although some embodiments of the present invention and their modifications have been described, it is also possible to appropriately combine each embodiment and each modification without departing from the gist of the present invention.

Explanation of Reference Numerals

[0100] 1 Stand device 2 Agricultural working machine 91,131 Stand body 92,132 Handle 96,136 Horizontal portion 160 Mark G Center of gravity

Claims

1. A stand device for supporting the agricultural working machine when it is not in use, a stand body detachably attached to the agricultural working machine, and a handle provided on the stand body for gripping when attaching and detaching the stand body to and from the agricultural working machine characterized in that it comprises the above.

2. The handle is located near the center of gravity of the stand body The stand device according to claim 1, characterized in that.

3. The stand body has a horizontally elongated portion in the longitudinal direction, The handle is provided so as to project upward at an intermediate position in the longitudinal direction of the horizontal portion The stand device according to claim 1 or 2, characterized in that.

4. The handle has a portion located above the center of gravity of the stand body in a side view The stand device according to claim 1 or 2, characterized in that.

5. When an operator holds the handle with one hand and lifts the stand body, the horizontal posture of the stand body is maintained The stand device according to claim 1 or 2, characterized in that.

6. A stand device for supporting the agricultural working machine when it is not in use, a pair of left and right stand bodies detachably attached to the agricultural working machine, and a handle provided on each of the pair of left and right stand bodies for gripping when attaching and detaching the stand body to and from the agricultural working machine, wherein the handle provided on the left stand body among the pair of left and right stand bodies and the handle provided on the right stand body among the pair of left and right stand bodies can be brought into contact with each other characterized in that it is a stand device.

7. A stand device for supporting the agricultural working machine when it is not in use, a stand body detachably attached to the agricultural working machine, and a mark provided on the stand body indicating the position of the center of gravity of the stand body characterized in that it comprises the above.

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