JP2005089184A - Small riding working machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To continuously or simultaneously perform agricultural work or the like and carrying out work of harvest or the like. <P>SOLUTION: In this small riding working machine, various working devices can be linked to the back side of a self-propellable travel vehicle body via a linking mechanism, and a lifting device is mounted to the front side of the travel vehicle body. Since the lifting device is mounted to the front side of the travel vehicle body, remounting to the various working devices linked to the back side of the travel vehicle body is not required, agricultural work or the like by the various working devices and carrying out work of harvest or the like by the lifting device can be performed continuously or simultaneously. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a small riding work machine for performing farm work or the like.

  Conventionally, as a form of small riding work machine, there is one in which various work devices can be connected to a rear of a self-propelled traveling vehicle body via a connecting mechanism (see, for example, Patent Document 1).

  Such a small riding work machine is used as an agricultural work machine or the like particularly in a small-scale field, but does not have a function of carrying or carrying a harvested product or the like.

Therefore, the work to carry harvested items etc. harvested in the field to the outside of the field, for example, to a light truck, is a dedicated power unloading vehicle that can be used even on small unicycles and small fields. Is used.
Japanese Patent Laid-Open No. 11-243710

  However, in the case of a unicycle, it takes a lot of labor to manually transport the harvested items from the field to the light truck stopped outside the field, and there is a difference in height between the unicycle and the platform of the light truck. In some cases, it is necessary to manually transfer the harvest from the unicycle to the platform of the light truck.

  In addition, in the case of a dedicated power delivery vehicle, while it does not require labor to carry out harvested items etc., there is a problem that it is costly to prepare such a power delivery vehicle itself, If there is a difference in height between the loading platform and the loading platform of the light truck, as with a unicycle, the harvest etc. must be transferred manually from the loading platform of the dedicated power truck to the loading platform of the lightweight truck. There is a problem that requires a lot of labor.

  Therefore, in the present invention, in a small riding work machine in which various work devices can be connected to the rear of a self-propelled traveling vehicle body via a connection mechanism, a small device characterized in that a lift device is mounted in front of the traveling vehicle body. A riding work machine is provided.

  The present invention is also characterized by the following configuration.

  (1) The lift device includes an elevating guide frame body erected at the front end of the traveling vehicle body, an elevating moving body attached to the elevating guide frame body so as to be movable up and down, and an elevating object attached to the elevating moving body. And a manual lifting / lowering means for ascending / descending the lifted object support connected to the lifted object support via a lifting / lowering moving body. Item 2. A small riding work machine according to Item 1.

  (2) The elevating guide frame body includes an elevating guide body extending in the vertical direction and a reinforcing body reinforcing the elevating guide body. A pair of left and right grips formed by projecting toward the side.

  (3) A driving part is arranged at the front part of the traveling vehicle body, and the lifting guide body is raised above the central part of the front end of the traveling vehicle body at a position just before the steering operation tool provided in the driving part. At the same time, the grip portion of the reinforcing body provided in the lifting guide body is disposed at a lower position than the grip portion of the steering operation tool.

  (4) The elevating guide frame body is connected to the pair of left and right elevating guide bodies extending in the vertical direction, the upper and lower connecting bodies for connecting the upper and lower parts of the elevating guide bodies, and the elevating guide bodies in an intersecting manner. A frame-shaped reinforcement body provided, and the reinforcement body is formed by projecting the left and right side portions from the both lifting guide bodies to the left and right outer sides, and the left and right side portions serve as a pair of left and right grips. What you did.

  According to the present invention, the following effects can be obtained.

  (1) According to the first aspect of the present invention, in a compact riding work machine in which various work devices can be connected to the rear of a self-propelled traveling vehicle body via a connecting mechanism, a lift device is mounted in front of the traveling vehicle body. ing.

  In this way, since the lift device is mounted in front of the traveling vehicle body, there is no need for replacement work with various working devices connected to the rear of the traveling vehicle body via the connection mechanism, and farm work by various working devices. And the work of carrying out the harvested product by the lift device can be performed continuously or simultaneously.

  And the lift device can carry out the harvesting work etc. up to the power carrier stopped outside the field, and can raise the harvest etc. to the height of the loading platform of the power carrier, The harvests can be easily transferred to the platform of a powered vehicle.

  (2) In the present invention as set forth in claim 2, the lift device includes a lift guide frame standing on the front end of the traveling vehicle body, a lift moving body attached to the lift guide frame so as to be movable up and down, and the lift An object support body that is attached to the moving body and supports the object to be lifted, and manual lifting means that is interlocked and connected to the object support body through the lifting and lowering body to raise and lower the object support body. It has.

  In this way, the operator supports the object to be lifted such as the harvested product in the field on the lifted object support, and moves the traveling vehicle body in the same state, so that the harvest by the lift device, etc. Can be safely and reliably carried out and stopped at a required location, for example, in the vicinity of the loading platform of the power transport vehicle, and manually operated by the manual lifting means, Can be raised to the height of the loading platform of the powered vehicle along the lifting guide frame through the lifting and lowering moving body, and the harvested items, etc. that are lifted and supported by the lifted object support can be powered. It can be easily transferred to the car carrier.

  In addition, since the elevating means is a manual type, the manufacturing cost can be reduced as compared with the power type.

  (3) In the present invention described in claim 3, the lifting guide frame body includes a lifting guide body extending in the vertical direction and a reinforcing body for reinforcing the lifting guide body, and the reinforcing body is provided on the left and right sides. Each portion is formed in a protruding shape from the lifting guide body to the left and right outer sides to form a pair of left and right grips.

  Thus, since the lifting guide frame body includes the lifting guide body and the reinforcing body, the strength of the lifting guide frame body can be secured satisfactorily with a simple structure and formed on the reinforcing body. The pair of left and right grips also function as a load receiving member for the object to be lifted, and the lifted object can be raised and lowered smoothly and reliably.

  Moreover, when the lift device is mounted on the traveling vehicle body, the operator can easily mount the lift device by gripping the pair of left and right grips formed on the reinforcing body with both hands.

  (4) In the present invention according to claim 4, the driving part is disposed at the front part of the traveling vehicle body, and the lifting guide body is located at the front end position of the steering operation tool provided at the driving part at the center of the front end of the traveling vehicle body. The reinforcement gripping portion provided on the lifting guide body is disposed at a lower position than the gripping portion of the steering operation tool.

  In this way, since the lifting guide body is arranged so as to rise upward from the center of the front end of the traveling vehicle body, by aligning the left and right center position of the object support body with the lifting guide body, When the object to be lifted / lowered is supported by the object to be lifted / lowered, the right / left center alignment of the object to be lifted / lowered and the object to be lifted / lowered can be easily performed. As a result, it is possible to efficiently lift and lower the object.

  Moreover, since the gripping portion of the reinforcing body is disposed at a lower position than the gripping portion of the steering operation tool, forward visibility is achieved for an operator who grips the gripping portion of the steering operation tool and performs the steering operation. Can be secured satisfactorily.

  (5) In the present invention described in claim 5, the lifting guide frame body includes a pair of left and right lifting guide bodies extending in the vertical direction, an upper and lower connecting body for connecting the upper and lower parts of both lifting guide bodies, A frame-shaped reinforcing body that is connected to both the lifting guide bodies in an intersecting manner, and the left and right side portions of the reinforcing body are formed so as to project outward from the both lifting guide bodies to the left and right sides. Is a pair of left and right grips.

  In this way, the left and right side portions of the reinforcing body are formed in a projecting shape to the left and right outer sides to form a pair of left and right grips. Therefore, when the operator attaches or removes the lift device to the traveling vehicle body, the reinforcing body The lift device can be easily attached and detached by gripping the left and right sides of the.

  In addition, since the reinforcing body is formed in a frame shape and is continuously connected to both the lifting guide bodies, there is no need to separately provide a connecting member for connecting the middle portions of both lifting guide bodies. As a result, the number of parts can be reduced, the manufacturing cost can be reduced, and the weight of the machine can be reduced.

  1 and FIG. 2 is a small riding work machine according to the present invention. The small riding work machine A is used as various working devices via a connecting mechanism C behind a traveling vehicle body B capable of self-propelling. The tillage device D is connectable, and a lift device F is mounted in front of the traveling vehicle body B via an attachment mechanism E. M is an operator.

  In this way, since the lift device F is mounted in front of the traveling vehicle body B, there is no need for replacement work with various work devices connected to the rear of the traveling vehicle body B via the coupling mechanism C. Agricultural work and the like by the work device and unloading work of the harvested product and the like by the lift device F can be performed continuously or simultaneously.

  The lift device F can carry out the harvesting work etc. to a power transport vehicle stopped outside the field, for example, a light truck (not shown), and harvests up to the height of the platform of the light truck. Since things can be raised, the harvest can be easily transferred to the platform of a light truck.

  Below, the structure of the traveling vehicle body B, the coupling mechanism C, the tilling device D, the mounting mechanism E, and the lift device F will be specifically described sequentially.

[Running vehicle body B]
As shown in FIGS. 1 to 3, the traveling vehicle body B has a vehicle body frame 2 interposed between a pair of left and right crawler-type traveling units 1, 1, and on the vehicle body frame 2, a driving unit 3 is disposed at the front. The motor unit 4 and the mission unit 5 are arranged one above the other at the rear, and the traveling units 1, 1 are linked to the motor unit 4 via the mission unit 5.

  The traveling unit 1 has a front driven wheel 11 attached to a front end portion of a traveling frame 10 extending in the front-rear direction via an idler fork 12, a rear driven wheel 13 attached to a rear end portion, and further driven to the mission unit 5. The crawler belt 16 is wound around these driving wheels 11, 13, and 15 by interlockingly connecting the wheels 15, and three rolling wheels 17 are attached to the lower side of the traveling frame 10 at intervals in the front-rear direction. ing. 11a is a front driven wheel support shaft, 13a is a rear driven wheel support shaft, 15a is a drive shaft, and 18 is a drive shaft support frame.

  The vehicle body frame 2 has a front left-right direction connecting frame 19 horizontally mounted between the front portions of the pair of left and right traveling frames 10, 10 extending in the front-rear direction, and the rear frame between the pair of left and right drive shaft support frames 18, 18. The guard frame is formed in a rectangular frame shape in plan view through the front and rear support frames 21a and 21b on the front and rear left and right connection frames 19 and 20, respectively. 22 is formed horizontally.

  The operation unit 3 has a floor 23 stretched on the front half of the guard frame 22, a handle column 24 is erected on the front of the floor 23, and the handle column 24 is operated via a handle support shaft 26. A rotating handle (steering wheel) 25 as a direction operation tool is attached, a seat 27 is disposed at a rear position of the handle 25, and various operation levers are disposed at left and right side positions of the seat 27. Yes.

  The prime mover section 4 has an engine 28 disposed behind the seat 27, and the transmission section 5 is linked to the output shaft 30 of the engine 28 via a first transmission mechanism 31 and a chain case 32. A PTO shaft 33 is interlocked to the output shaft 30 via a second transmission mechanism 34.

[Coupling mechanism C]
As shown in FIG. 1, the coupling mechanism C includes a traveling vehicle body side hitch 50 attached to the traveling vehicle body B, and a tiller device side hitch 51 attached to the cultivation device D by being detachably connected to the traveling vehicle body side hitch 50. The raising / lowering cylinder 52 interposed between the traveling vehicle body side hitch 50 and the rear part of the traveling vehicle body B is provided, and the tilling device D can be raised and lowered by extending and retracting the raising / lowering cylinder 52. I am doing so.

[Tillage device D]
As shown in FIG. 1, the tillage device D has a connecting body 41 attached to an upper end portion of a chain case 40 extending in the vertical direction, and an input shaft 36 that protrudes outward from the upper side wall. The transmission mechanism 37 is interlocked and connected to the right end portion of the chain case 40, while the lower end portion of the chain case 40 is passed through a tillage shaft 43 with the axis lined in the left-right direction, Multiple attachments are made along the axis of the tilling shaft 43. 46 is a side cover, 47 is a rear cover, and 48 is a hanger rod.

[Mounting mechanism E]
As shown in FIGS. 1 to 4, the attachment mechanism E includes a traveling vehicle body side attachment body 56 attached to the front end portion of the guard frame 22 of the traveling vehicle body B via a bracket 55, and the traveling vehicle body side attachment body 56 left and right. A lift device side mounting body 57 connected to be freely tiltable around a direction axis, a tilt operation means 58 for tilting the lift device side mounting body 57, and a tilt operation means 59 linked to the tilt operation means 58. It has.

(Running car body side mounting body 56)
As shown in FIGS. 5 and 6, the traveling vehicle body side attachment body 56 includes a left and right extension attachment piece 60 that extends in the left and right direction, and an upward rising attachment that rises upward from the center portion of the left and right extension attachment piece 60. Piece 61.

(Lift device side mounting body 57)
The lifting device side mounting body 57 is composed of a pair of left and right extension mounting support pieces 62 extending in the left and right direction, and a pair of left and right extending up from the left and right side portions of the left and right extension mounting support pieces 62 and connecting upper ends thereof. A locking body 64 is formed between the inclined mounting support pieces 63 and 63 in a triangular frame shape in a front view, and locks a later-described lift device F between upper portions of the both inclined mounting support pieces 63 and 63.

  The locking body 64 is formed to extend in the vertical direction, and is formed between the lower ends of the pair of left and right hook pivot support pieces 65, 65 suspended from the upper part of the pair of left and right inclined mounting support pieces 63, 63. The lower end portion is pivotally supported via a pivot 66 having an axis line in the left-right direction, and a locking hook 64a formed on the upper end is swingable in the front-rear direction around the pivot 66. 64b is a hook operation piece.

  In addition, the connecting pieces 67, 67 project rearward from the left and right ends of the left and right extension mounting support pieces 62 of the lift device side mounting body 57, while the left and right extension mounting of the traveling vehicle body side mounting body 56 is provided. Connecting pieces 68, 68 project forward from the left and right end portions of the piece 60, and the connecting pieces 67, 67, 68, 68 facing the inner and outer sides on the left and right side portions are respectively aligned with the axis in the left-right direction. It is pivotally supported and connected by connecting pins 69 and 69.

  Thus, with respect to the traveling vehicle body side mounting body 56 fixed to the traveling vehicle body B, the lift device side mounting body 57 can be tilted in the front-rear direction around the connecting pins 69 and 69.

(Tilt actuating means 58)
The tilt actuating means 58 is interposed between the upper part of the traveling vehicle body side mounting body 56 and the lift device side mounting body 57, and is configured to tilt and move the lift device side mounting body 57 in the front-rear direction. An expansion / contraction mechanism 70 and an electric motor 71 for extending / contracting the expansion / contraction mechanism 70 are provided.

  That is, the pantograph-type expansion / contraction mechanism 70 includes a connecting rod 72 extending in the left-right direction, and female screw pieces 73, 74 screwed to male screw portions 72a, 72b formed on the outer peripheral surfaces of the left and right sides of the connecting rod 72. Each of the female screw pieces 73 and 74 has a pair of front and rear links 77, 77, 78, and 78 pivoted and connected via pivot and connection pins 75 and 76 with the outer ends directed in the vertical direction. doing.

  The inner ends of the front links 77 and 78 are pivotally supported and connected with the pivots and connecting pieces 79 provided between the upper portions of the pair of left and right inclined mounting support pieces 63 and 63, respectively, with their axes directed vertically. While pivoting and connecting via pins 80 and 80, the inner ends of the rear links 77 and 78 are respectively connected to the pivoting and connecting piece 81 provided on the upper part of the upper rising mounting piece 61 with an axis in the vertical direction. It is pivoted and connected via pivoted and connected pins 82 and 82.

  The male threaded portions 72a and 72b formed on the outer peripheral surfaces of the left and right side portions of the connecting rod 72 form screw threads in opposite directions to each other, and thread grooves are formed in the opposite directions to the respective male threaded portions 72a and 72b. The formed female screw pieces 73 and 74 are screwed.

  In the electric motor 71, the drive shaft 71a is interlocked and connected to the right end portion of the connecting rod 72 through the connecting pin 83, and a pair of upper and lower rotation stoppers 84 and 84 are attached to the right pivot and connecting pin 76. Is fixed through.

  In this way, the drive shaft 71a of the electric motor 71 is driven to rotate in the forward direction, and the connecting rod 72 linked to the drive shaft 71a is rotated in the forward direction to move the left and right female screw pieces 73 and 74 closer to the center. The inner ends of the pair of front and rear left and right links 77, 77, 78, 78 are separated from each other in the front-rear direction in conjunction with the movement of the female screw pieces 73, 74. Can be made.

  As a result, the lifting device side mounting body 57 can be tilted forward about the connecting pins 69 and 69 with respect to the traveling vehicle body side mounting body 56 fixed to the traveling vehicle body B.

Therefore, as shown in FIG. 5, the front extension support pieces 113 and 113 of the lift device F, which will be described later, attached to the lift device side attachment body 57 can be appropriately lowered to the front and inclined to the front extension support pieces 113 and 113. Can be easily entered below the object to be lifted.

Further, by driving the drive shaft 71a of the electric motor 71 in the reverse direction and rotating the connecting rod 72 linked to the drive shaft 71a in the reverse direction, the left and right female screw pieces 73 and 74 are respectively moved outward. They can be separated from each other, and the inner ends of the pair of front and rear left and right links 77, 77, 78, 78 are moved closer to each other in the front-rear direction in conjunction with the movement of the female screw pieces 73, 74. Can do.

  As a result, with respect to the traveling vehicle body-side attachment body 56 fixed to the traveling vehicle body B, the lift device-side attachment body 57 can be rotated backward about the connecting pins 69 and 69 to be in a substantially vertical standing state. it can.

(Tilt operation means 59)
As shown in FIG. 6, the tilt operation means 59 is configured by providing a switch 85 on the handle 25 and connecting the switch 85 to the electric motor 71 via a battery (not shown) as a power source.

  In this way, the switch 85 can be operated by hand while holding the handle 25, and by operating the switch 85, the electric motor 71 can be operated forward or reverse or stopped.

[Lift device F]
As shown in FIGS. 3 to 6, the lift device F is attached to the front end of the traveling vehicle body A via the attachment mechanism E, and is attached to the lift guide frame 90 so as to be movable up and down. The lifting / lowering moving body 91, the lifting / lowering object support 92 that is attached to the lifting / lowering moving body 91 and supports the object to be lifted and linked to the lifting / lowering object support 92 via the lifting / lowering moving body 91, A manual lifting / lowering means 93 for lifting and lowering the object support body 92 and a lifting / lowering operating means 94 linked to the manual lifting / lowering means 93 are provided.

(Elevating guide frame 90)
The elevating guide frame 90 includes an elevating guide 95 that extends in the vertical direction and a reinforcing body 96 that reinforces the elevating guide 95.

  That is, the pair of left and right reinforcing bodies 96, 96 extend the pair of left and right outer extending pieces 100, 100 outward from the upper and lower sides of the lifting guide body 95 extending in the vertical direction, respectively, and within the lateral width of the traveling vehicle body B. A pair of left and right lower extension pieces 101, 101 extending downward from the outer end of each outer side extension piece 100, 100 to form a gripping part, between the middle part and the lower part of these left and right lower extension pieces 101, 101. Between the lower ends, first, second, and third connecting pieces 97, 98, 99 extending in the left-right direction via the lifting guides 95 are horizontally mounted.

  In addition, engagement pieces 102, 102 are provided on the left and right sides of the rear surface of the first connecting piece 97, and the upper portions of the pair of left and right inclined attachment support pieces 63, 63 provided with the engagement pieces 102, 102 on the lift device side attachment body 57. A locking hook receiving pin 103 extending in the left-right direction is provided at the center of the first connecting piece 97, and the locking body 64 is attached to the locking hook receiving pin 103. A locking hook 64a formed on the upper end of the lifting guide frame 90 is locked from above to prevent the lifting guide frame body 90 from being detached from the lifting device side mounting body 57 upward.

  In this manner, the lifting guide frame body 90 can be detachably attached to the lift device side attachment body 57.

(Elevating moving body 91)
The up-and-down moving body 91 is provided with a pair of upper and lower roller support shafts 106 and 106 whose axial lines are directed in the left and right directions via the boss portions 105 and 105 at the upper and lower ends of the moving body piece 104, and the left and right end portions of the respective roller support shafts 106 and 106 A pair of left and right rollers 107, 107, 107, 107 are attached to be freely rollable, and a support frame attaching piece 109 having a rectangular frame shape is attached to the movable body piece 104 via attachment pieces 108, 108.

  Here, the above-mentioned elevating guide body 95 is formed in a C-shape in plan view in which the front surface and the upper and lower surfaces are opened while extending in the vertical direction, and a pair of left and right guide rail portions extending in the vertical direction on the left and right sides. 110, 110 are formed, and a pair of left and right rollers 107, 107 are slidably disposed on both guide rail portions 110, 110, and a moving body main piece 104 is disposed between both guide rail portions 110, 110, while A support attachment frame piece 109 is disposed at the immediately preceding position.

  In this way, the elevating moving body 91 can move the moving body main piece 104 and the support attachment frame piece 109 up and down integrally along the guide rail portions 110, 110 of the elevating guide body 95 via the rollers 107, 107. There is no.

(Supported object support 92)
The to-be-lifted object support 92 includes a support shaft 111 formed by extending in the left-right direction, and lower extension support pieces 112, 112 formed by attaching the upper ends to the left and right side portions of the support shaft 111 and extending downward. The lower extension support pieces 112 and 112 are formed from front extension support pieces 113 and 113 which are formed to extend forward from a lower end portion in a substantially orthogonal state.

  The support shaft 111 can be selectively mounted horizontally on either the upper part or the lower part of the support attachment frame piece 109.

  Further, the front distraction support pieces 113 and 113 are attached to the support body in the lowered state in addition to the lowered usage posture (a) indicated by the solid line in FIG. 5 and the raised usage posture (b) indicated by the one-dotted line in FIG. By attaching the support shaft 111 to the frame piece 109 so as to be reversed left and right, as shown by a two-dot chain line in FIG. 5, the storage posture (c) arranged at a position below the attachment mechanism E can be achieved. .

  Therefore, when the lift work is not performed, particularly when the aircraft is stored in the hangar, the front and rear lengths of the aircraft can be shortened by placing the front extension support pieces 113 and 113 into the storage posture (c). The storage space can be made compact.

(Manual lifting / lowering means 93)
The manual lifting / lowering means 93 hangs the lifting / lowering wire 124 between the movable body piece 104 of the lifting / lowering moving body 91 and the lifting / lowering guide body 95 via first, second, third and fourth pulleys 116, 118, 121 and 123. ing.

  That is, the first pulley 116 is attached to the central portion of the moving body main piece 104 of the elevating moving body 91 via the first pulley support shaft 115 with the axis line in the front-rear direction, and the upper portion of the elevating guide body 95 is A second pulley 118 is attached via a second pulley support shaft 117 with its axis directed to the third pulley support bracket 119 projecting rearward from the upper part of the lifting guide body 95 to the third pulley support with the axis line directed in the left-right direction. A third pulley 121 is attached via a shaft 120, and a fourth pulley 123 is attached to a middle right side wall of the lifting guide body 95 via a fourth pulley support shaft 122 having an axis line in the front-rear direction.

  Then, the base end portion 126 of the lifting / lowering wire 124 is locked to the upper end portion of the lifting / lowering guide body 95 via the locking pin 125, and the middle portion of the lifting / lowering wire 124 is connected to the first, second, third, The front end portion 127 is connected to the raising / lowering operation means 94 described later by being wound around the fourth pulleys 116, 118, 121, and 123 sequentially.

(Elevating operation means 94)
The raising / lowering operating means 94 projects a support protrusion 130 outward from the upper part of the downward extension piece 101 forming a part of the right reinforcing body 96, and the rotation protrusion adjuster 131 is interposed in the support protrusion 130. The base end portions of a pair of upper and lower reel support arms 132 and 132 extending in the lateral direction are attached, and the reel body 133 is attached to the distal end portions of both reel support arms 132 and 132.

  As shown in FIGS. 7 and 8, the rotational position adjuster 131 is provided so as to project outward from the mounting wall piece 134 attached to the support projecting piece 130 and the upper and lower end edges of the mounting wall piece 134. A pair of upper and lower rotation support pieces 135, 135, a longitudinal shaft 136 interposed between the center portions of both rotation support pieces 135, 135, and a pair of upper and lower rotation adjustment circles having the center portion rotatably attached to the longitudinal shaft 136 It consists of plates 138 and 138.

  A positioning hole 139 is formed in the peripheral portion of the upper rotation support piece 135, while a plurality of rotation adjustment holes 140 are formed in the peripheral portion of the upper rotation adjustment disc 138 with a space therebetween in the circumferential direction. In addition to forming the rotation adjusting disks 138 and 138 around the longitudinal axis 136, the rotation adjusting hole 140 is aligned below the positioning hole 139 and positioned in the holes 139 and 140. The pin 141 is inserted so that the rotation adjusting disks 138 and 138 can be positioned and fixed.

  In addition, the base end portions of the pair of upper and lower reel support arms 132 and 132 are integrally attached to the pair of upper and lower rotation adjusting disks 138 and 138, and the reel body 133 is attached to the distal end portions of the both reel support arms 132 and 132.

  Furthermore, a plurality (two in this embodiment) of guide roller support pieces 142, 142, 143, 143 are provided on the periphery of the pair of upper and lower rotation adjusting disks 138, 138 so as to protrude in the vertical direction, and both guide rollers are supported. First and second guide rollers 146, 147 are attached between the pieces 142, 142, 143, 143 via roller support shafts 144, 145.

  Here, the first guide roller 146 is disposed at a position that is 90 degrees out of phase with the reel support arms 132 and 132 in the circumferential direction of the rotation adjusting disk 138, and the second guide roller 147 is the first guide roller 146. Are disposed at positions 90 degrees apart from each other, that is, at positions facing the reel support arms 132 and 132 with the longitudinal support shaft 136 interposed therebetween.

  Further, the reel body 133 has a reel / winding / rewinding reel (not shown) disposed inside the reel case 150 so as to be rotatable via a rotation support shaft 152, and is used for raising and lowering the winding / rewinding reel. The distal end portion of the wire 124 is connected, and the proximal end portion of the rotation operation handle 151 is attached to the rotation support shaft 152.

  In this way, by rotating the rotation operation handle 151 in the forward rotation direction, the take-up / rewinding reel can be rotated in the forward rotation direction and the lifting wire 124 can be taken up. In conjunction with the winding operation of the lifting / lowering wire 124, the lifting / lowering object support 92 can be moved up and down via the lifting / lowering moving body 91.

  Further, by rotating the rotation operation handle 151 in the reverse rotation direction, the take-up / rewinding reel can be rotated in the reverse rotation direction, so that the lifting wire 124 can be rewound. In conjunction with the rewinding operation of 124, the object support body 92 can be moved down via the elevating / lowering body 91.

  At this time, as shown in FIG. 6, the turning operation handle 151 of the elevating operation means 94 is placed near the outer portion of the traveling vehicle body B and is operated at an operation position, that is, seated on the seat 27 of the driving unit 3. A seating operation position (b) that can be operated in the state of being lifted, or a standing operation position (b) that can be operated in a state of getting off the traveling vehicle body B and standing in the vicinity of the lift device F, and a lateral width W of the traveling vehicle body B (Refer to FIG. 2) The position is freely changeable with respect to the storage position (c) where it is arranged and not operated.

  Then, the position change operation of the rotation operation handle 151 is performed by extracting the positioning pin 141 that is inserted through the positioning hole 139 and the rotation adjustment hole 140 and positions and fixes the rotation adjustment disks 138 and 138 upward, In this state, the reel body 133 is rotated in a required direction via a pair of upper and lower reel support arms 132 and 132, and is positioned in a positioning hole 139 and a rotation adjusting hole 140 that are aligned in the vertical direction at a required position. The pin 141 is inserted, and the rotation adjusting disks 138 and 138 are positioned and fixed.

  Here, the reel support arms 132 and 132 in the seating operation position (a) take a posture of extending to the right side substantially orthogonal to the front-rear direction of the vehicle body, and the lifting wire 124 pulled out from the fourth pulley 123 to the right side. Can be pulled rightward through the first guide roller 146 as it is, and can be smoothly wound and rewound.

  Further, the reel support arms 132 and 132 in the standing operation position (b) take a posture of extending forward substantially parallel to the front-rear direction of the vehicle body, and the lifting and lowering wire 124 pulled out from the fourth pulley 123 to the right side, By pulling forward through the first guide roller 146 and the second guide roller 147, the both guide rollers 146, 147 can smoothly take up and rewind.

  In the present embodiment, in a state where the lifting guide frame body 90 is attached to the lifting device side attachment body 57, the lifting guide body 95 is positioned on the left and right width center line of the traveling vehicle body B at a position immediately before the driving unit 3. Like to do.

  Therefore, by aligning the left and right center position of the object support body 92 with the elevating guide body 95, both the left and right front extension support pieces 113, 113 of the object object support body 92 can be It is possible to easily align the left and right centers of the front extension support pieces 113 and 113 and the object to be lifted. As a result, it is possible to efficiently lift and lower the object.

  Further, the rotation operation handle 151 can adjust the rotation radius of the rotation operation handle 151 appropriately by making the attachment position of the base end portion to the rotation support shaft 152 adjustable. It is possible not to interfere with the structural member.

  In the small riding work machine A according to the present embodiment, the operator M causes the object support body 92 to support the object to be lifted such as the harvested product in the field, and travels the traveling vehicle body B in the same state. By moving it, it is possible to safely and reliably carry out the harvested product and the like by the lift device F.

  Then, the object support body 92 is moved up and down by stopping at a required place, for example, in the vicinity of the loading platform of the power carrier and manually operating the manual lifting means 93 via the lifting operation means 94. It is possible to raise the height of the loading platform of the power carrier along the lifting guide frame 90 through 91, and the harvested goods that are the materials to be lifted and supported by the workpiece support 92 are powered trucks. It can be easily transferred to the loading platform.

  At this time, since the lifting guide frame 90 includes the lifting guide body 95 and the pair of left and right reinforcing bodies 96, 96, the strength of the lifting guide frame 90 can be ensured with a simple structure. At the same time, the pair of left and right reinforcing bodies 96 function as a load receiving member for the object to be lifted, and the lifted object can be raised and lowered smoothly and reliably.

  In addition, the reinforcing bodies 96, 96 have a pair of left and right outer extending pieces 100, 100 extending from the upper part of the lifting guide body 95 to the left and right outer sides, and left and right extending downward from the outer ends of the outer extending pieces 100, 100. Since the pair of left and right outer extending pieces 100, 100 are arranged at a lower position than the gripping portion of the handle 25, the steering operation is performed by gripping the gripping portion of the handle 25. For the operator M who performs the above, it is possible to ensure good front visibility.

  Further, for the operator M who performs the steering operation by sitting on the seat 27 of the driving unit 3 disposed in the front part of the traveling vehicle body B, for example, when traveling downhill in a mountainous area, a pair of left and right reinforcing bodies 96 is provided. , 96 also functions as a safety frame, so that a great sense of security can be obtained and the steering operation can be performed easily. As a result, operability and safety can be improved.

  Further, since the lift device F is mounted in front of the traveling vehicle body B, it is not necessary to replace the various working devices connected to the rear of the traveling vehicle body B via the connecting mechanism C, and the various working devices are used. Agricultural work and the like and unloading work of harvested goods by the lift device F can be performed continuously or simultaneously.

  And since the lift apparatus F can carry out the harvesting work etc. to the power carrier stopped at the field outside, it can raise the harvest etc. to the height of the loading platform of the power carrier. The harvest can be easily transferred to the platform of a powered vehicle.

  In addition, since the lift device F includes the manual lifting / lowering means 93 so that the manual lifting / lowering means 93 can be lifted / lowered by the lifting / lowering operating means 94, the lift device F itself can be downsized. In particular, in a small-scale field, the handling is good, the structure is simplified, and the manufacturing cost can be reduced.

  Further, since the lifting operation means 94 is disposed in the vicinity of the driving unit 3 disposed on the traveling vehicle body B, the operator M moves the traveling vehicle body B while sitting on the seat 27 of the driving unit 3. The lift operation means 94 can be easily operated even during the steering operation, and the harvesting work etc. can be carried out efficiently.

  At this time, the operator M can operate the elevating operation means 94 while visually confirming the lift device F in front, so that the carrying-out work efficiency and the safety during the carrying-out work can be ensured satisfactorily.

  Moreover, since the elevating operation means 94 is freely changeable between the seating operation position (A) and the standing operation position (B), the operator M can easily move up and down at a required position according to work conditions and the like. The operating means 94 can be operated at hand.

  Therefore, it is possible to efficiently carry out the harvested work and the like by the lift device F.

  Further, when the lifting operation means 94 is not operated, it is possible to prevent the lifting operation means 94 from being damaged due to interference with other objects and the like by arranging it in the storage position (b). . In particular, when the traveling vehicle body B is stored in a hangar or the like, the storage space can be made compact.

  Note that power operating means such as an electric motor may be employed instead of the manual operating means 93.

[Mounting mechanism E as an example of transformation]
FIGS. 9 and 10 show a mounting mechanism E as a modified example. The mounting mechanism E has the same basic structure as the mounting mechanism E of the above-described embodiment, but the guard frame of the traveling vehicle body B is shown in FIGS. The difference is that the left and right sliding means 155 is provided on the bracket 55 attached to the front end portion of 22.

  That is, as shown in FIGS. 9 and 10, the left / right slide means 155 is attached to the bracket 55 with a lateral feed shaft support 156 extending in the left / right direction, and is forward of the left and right end portions of the lateral feed shaft support 156. A transverse feed shaft 158 is installed between the shaft support pieces 157 and 157 projecting to the left and right, and the right end portion of the transverse feed shaft 158 extends to the right side of the right shaft support piece 157. A rotation operation handle 159 is attached to the extended end of the transverse feed shaft 158.

  A cylindrical female screw body 160 extending in the left-right direction is screwed to the middle portion of the lateral feed shaft 158, and the traveling vehicle body side attachment body 56 is attached to the female screw body 160.

  In this way, by rotating the rotation operation handle 159 in the normal (reverse) rotation direction, the traveling vehicle body side attachment body 56 and further the traveling vehicle body side attachment body 56 are connected via the female screw body 160. The lift device F attached via the lift device-side attachment body 57 can be moved to the left (right) side in a lateral feed state.

  Accordingly, the object to be lifted up and down to the required height by the lift device F can be moved laterally in the left or right direction by the required amount of movement, and movement such as loading and unloading work of the object to be lifted can be performed. Work can be performed efficiently.

  FIGS. 11 to 13 show an attachment mechanism E as a second embodiment attached to the traveling vehicle body B, and a lift device F as the second embodiment attached to the traveling vehicle body B via the attachment mechanism E. .

  Below, the structure of the attachment mechanism E and the lift apparatus F as 2nd Embodiment is demonstrated concretely one by one.

[Mounting mechanism E as the second embodiment]
As shown in FIGS. 11 to 13, the attachment mechanism E according to the second embodiment attaches the attachment body 200 to the front end portion of the guard frame 22 of the traveling vehicle body B via a bracket 55. The left and right extension mounting support piece 62 extending in the left and right direction, and a pair of left and right inclined mounting support pieces 63, 63 that rise upward from the left and right side portions of the left and right extension mounting support piece 62 and connect the upper ends to each other. A locking body 64 that locks a lift device F, which will be described later, is provided between the upper portions of the both inclined mounting support pieces 63, 63. 201 is a guide roller.

[Lift Device F as Second Embodiment]
As shown in FIGS. 11 to 13, the lift device F as the second embodiment includes a lifting guide frame 90 attached to the front end portion of the traveling vehicle body B via the mounting mechanism E, and the lifting guide frame 90. The lifting / lowering moving body 91 attached to the lifting / lowering movable body 91, the lifting / lowering object support 92 attached to the lifting / lowering moving body 91 and supporting the object to be lifted / lowered, and the lifting / lowering moving body 91 via the lifting / lowering moving body 91 The manual lifting / lowering means 93 for moving up and down the lifted object support 92, the lifting / lowering operating means 94 linked to the manual lifting / lowering means 93, and the lifted / lowered object support 92 tilted. A tilt operating means 202 and a tilt operating means 203 linked to the tilt operating means 202 are provided.

(Elevating guide frame 90)
As shown in FIGS. 14 to 16, the lifting guide frame body 90 is connected to a pair of left and right lifting guide bodies 95, 95 extending in the vertical direction, and upper and lower parts connecting both the lifting guide bodies 95, 95 respectively. The lower connecting bodies 204 and 205, and the frame-like reinforcing bodies 96 provided in a crossing manner with both the lifting guide bodies 95 and 95 are provided.

  The pair of left and right lifting guide bodies 95, 95 are arranged at regular intervals in the left-right direction, and form a vertically long rectangular frame with the upper and lower connecting bodies 204, 205. The horizontal spacing of 95 is at least equal to or wider than the lateral width of the headlight 206 (see FIGS. 11 and 12) provided on the upper portion of the front wall of the handle column 24 of the operating unit 3. Yes.

  In this way, even when the lift device F is mounted in front of the traveling vehicle body B, the front lamp 206 can be illuminated through the elevator guides 95, 95 so that the front can be illuminated. Work (in the room, in the evening or at night) so that work can be performed efficiently and safely.

  Further, as shown in FIG. 14 to FIG. 16, each lifting guide body 95, 95 protrudes inward at the side wall forming pieces 198, 198 extending in the vertical direction and the front and rear end edges of each side wall forming piece 198, 198. The front and rear wall forming pieces 199, 199, 199, and 199 continuously connected in a shape are formed in a U shape in a plan view, and a pair of left and right guide rail portions 110 and 110 are formed by the front and rear wall forming pieces 199, 199, 199, and 199.

  As shown in FIGS. 14 to 16, the reinforcing body 96 has a U-shaped cross-section and is formed by extending in the left-right direction, and a reinforcing body 209 formed in a front view portal shape. The left-right direction connecting piece 208 is formed in a quadrangular frame shape, and crosses between the middle portions of the pair of left and right elevating guide bodies 95, 95 so as to cross the left and right ends 210, 210 of the left-right direction connecting piece 208. Are arranged on the outer side of the lifting guide bodies 95 and 95, and the reinforcing main body 209 is straddled between the left and right end portions 210 and 210.

  The reinforcing body 209 is formed in a front portal shape from vertically extending pieces 211 and 211 extending in the up and down direction, and horizontally extending pieces 212 horizontally mounted between the upper ends of the vertically extending pieces 211 and 211. The direction extending pieces 211 and 211 are connected to the left and right side end portions 210 and 210 of the left and right direction connecting piece 208 at the lower end, and the left and right direction extending pieces 212 are horizontally mounted on the upper rear surfaces of the pair of left and right lifting guide bodies 95 and 95. It is connected continuously.

  In this manner, the vertically extending pieces 211 and 211 forming the left and right side portions of the reinforcing body 96 are formed so as to project outward from the lifting guide bodies 95 and 95 to the left and right sides to form a pair of left and right grips.

  In addition, engagement pieces 102, 102 are provided on the left and right side portions of the rear surface of the left / right direction connecting piece 208, and both engagement pieces 102, 102 are provided above the pair of left and right inclined attachment support pieces 63, 63 provided on the attachment body 200 from above. A hook receiving pin 103 for locking that extends in the left and right direction is provided at the center of the connecting piece 208 in the left and right direction, and is formed on the upper end of the locking body 64 on the hook receiving pin 103 for locking. The locking hook 64a is locked from above to prevent the lifting guide frame 90 from being detached from the mounting body 200 upward.

  In this way, the lifting guide frame 90 can be detachably attached to the attachment 200.

  At this time, the vertically extending pieces 211 and 211 forming the left and right side portions of the reinforcing body 96 are formed so as to protrude outwardly in the left and right directions from the lifting guide bodies 95 and 95 to form a pair of left and right grips. When the lift device F is attached to and detached from the traveling vehicle body B via the attachment body 200, the lift device F can be easily attached and detached by gripping the vertically extending pieces 211 and 211.

  Moreover, since the reinforcing body 96 is formed in a rectangular frame shape and is connected to both the lifting guide bodies 95 and 95 in an intersecting manner, the connecting member for connecting the middle portions of the both lifting guide bodies 95 and 95 is provided. As a result, the number of parts can be reduced, the manufacturing cost can be reduced, and the weight of the airframe can be reduced.

(Elevating moving body 91)
As shown in FIGS. 17 to 19, the elevating / lowering moving body 91 includes a moving body main piece 104 and a support body mounting frame piece 109.

  The moving body main piece 104 includes a rear wall forming piece 215 extending in the vertical direction, a pair of left and right side wall forming pieces 216 and 216 connected to left and right end edges of the rear wall forming piece 215, and both side wall forming. A pair of left and right connecting pieces 217, 217 connected to the front end edge of each piece 216, 216, and rollers 107, 107, 107, 107 attached to the upper and lower portions of the pair of left and right side wall forming pieces 216, 216 via roller support shafts 106, 106, 106, 106, respectively. doing.

  Here, the rollers 107, 107, 107, 107 are arranged in the guide rail portions 110, 110 formed in the above-described lifting guide bodies 95, 95, and the movable body piece 104 is moved up and down along the guide rail portions 110, 110 via the rollers 107, 107, 107, 107. It is possible to move.

  The support attachment frame 109 is formed in a frame shape from a pair of upper and lower frame forming pieces 218, 218 extending in the left-right direction and a pair of left and right side frame forming pieces 219, 219 extending in the up-down direction. The connecting pieces 217 and 217 of the movable body main piece 104 are connected in a erected manner between the central portions of the upper and lower frame forming pieces 218 and 218.

(Supported object support 92)

As shown in FIGS. 17 to 19, the object support body 92 is formed of a downward extension support piece 112, 112 that is formed by extending downward, and is forwardly forward from a lower end portion of each of the downward extension support pieces 112, 112 in a substantially orthogonal shape. The front extension support pieces 113 and 113 formed by extension are formed on the left and right sides of the upper frame formation piece 218 of the support attachment frame 109, and the upper ends of the lower extension support pieces 112 and 112 via brackets 220 and 220, respectively. The part is pivotally supported by support shafts 111 and 111 having an axis line in the left-right direction.

  In this way, the object support 92 is configured to be swingable back and forth about the support shafts 111 and 111.

  In addition to the lowered usage posture (a) indicated by the solid line in FIG. 11 and the elevated usage posture (b) indicated by the two-dot chain line in FIG. As shown, the storage posture (c) reversed to the driving unit 3 side can be achieved.

  Therefore, when lift work is not performed, especially when the aircraft is stored in the hangar, the longitudinal length of the aircraft can be shortened by placing the object support body 92 in the storage posture (c). Thus, the storage space can be made compact.

(Manual lifting / lowering means 93)
As shown in FIGS. 11 to 14, the manual lifting / lowering means 93 is provided between the movable body piece 104 of the lifting / lowering moving body 91 and the lifting / lowering guiding body 95 via first and second pulleys 116 and 118. 124 around.

  That is, the first pulley 116 is attached to the central portion of the moving body piece 104 of the elevating moving body 91 via the first pulley support shaft 115 with the axis line oriented in the front-rear direction, and the axis line is arranged in the front-rear direction on the upper coupling body 204. A second pulley 118 is attached via a second pulley support shaft 117 directed to the head.

  Then, the base end portion 126 of the lifting / lowering wire 124 is locked to the upper connecting body 204 via the locking pin 125, and the middle portion of the lifting / lowering wire 124 is sequentially wound around the first and second pulleys 116 and 118. The tip end portion 127 is connected to the lifting operation means 94 described later.

(Elevating operation means 94)
As shown in FIGS. 11 to 16, the elevating operation means 94 has a reel case 150 attached to the upper part of the side wall forming piece 198 of the right elevating guide bodies 95, and a rotating support shaft 152 is provided in the reel case 150. The winding / rewinding reel 221 is pivotably mounted, and the tip end portion 127 of the lifting / lowering wire 124 is connected to the winding / rewinding reel 221, and the rotation operation handle 151 is connected to the rotation support shaft 152. The base end is attached.

  A gripping portion 222 is provided at the tip of the rotation operation handle 151. The gripping portion 222 is disposed within the left-right width of the front portion of the traveling vehicle body B as shown in FIG. The operator is seated at a position where his / her hand can extend and hold his / her hand forward.

  In this way, the operator can hold the holding portion 222 while in the sitting posture and rotate the rotation operation handle 151.

  At this time, by rotating the rotation operation handle 151 in the forward (reverse) rotation direction, the winding / rewinding reel 221 is rotated in the forward (reverse) rotation direction, and the lifting wire 124 is wound up. The object support body 92 can be moved up (down) through the elevating moving body 91 in conjunction with the winding (rewinding) operation of the elevating wire 124. I have to.

(Tilt actuating means 202)
As shown in FIGS. 17 to 19, the tilt actuating means 202 is interposed between the elevating / lowering moving body 91 and the elevating / lowering object support 92 so that the elevating / lowering object support 92 is attached to the elevating / lowering moving body 91. Tilt operation.

  That is, the tilt actuating means 202 penetrates the eccentric cam support shaft 225 extending in the left-right direction through the cylindrical lower frame forming piece 218 that forms a part of the support mounting frame 109 described above. The eccentric cams 226 and 226 are attached to the left and right end portions of the eccentric cam support shaft 225 that is supported so as to be rotatable about its axis and protrudes from the lower frame forming piece 218, respectively.

  The eccentric cams 226 and 226 are in contact with the rear halfway portions of the lower extension support pieces 112 and 112 of the object support body 92 from the rear.

(Tilt operation means 203)
As shown in FIGS. 17 to 19, the tilt operation means 203 extends the eccentric cam support shaft 225 to the right side of the right side eccentric cam 226 and attaches the helical gear 227 to the extension part, while the lower frame A handle support shaft 229 is attached to the right end of the body forming piece 218 via a handle support 228, a worm 230 is formed on the outer peripheral surface of the middle portion of the handle support shaft 229, and the worm 230 is engaged with the helical gear 227. The proximal end portion of the tilt operation handle 231 is attached to the rear end portion of the handle support shaft 229, and the grip portion 232 is provided at the distal end portion of the tilt operation handle 231. Reference numeral 233 denotes a rotation locus of the eccentric cam 226.

  The handle support shaft 229 is arranged with its axis line in the front-rear direction and slightly inward, and the grip 232 of the tilt operation handle 231 attached to the rear end of the handle support shaft 229 is shown in FIG. As shown, it is disposed within the lateral width of the traveling vehicle body B, and is disposed at a position where an operator sitting on the seat 27 of the driving unit 3 can extend and hold his / her hand forward.

  In this way, the operator can grip the grip portion 232 while in the sitting posture and rotate the tilt operation handle 231.

  At this time, the rotational operation force of the tilt operation handle 231 is transmitted to the worm 230 → the helical gear 227 → the eccentric cam support shaft 225 → the eccentric cams 226 and 226 → the respective lower extension support pieces 112 and 112. As shown in FIG. 11, the object support body 92 is tilted by being pivoted in the front-rear direction around the support shafts 111, 111, thereby changing the posture of the object support body 92.

  That is, the front extension support pieces 113, 113 of the object support body 92 are changed to any one of the tilt postures of the horizontal state (d), the forward tilted state (e), or the forward tilted state (f). Can do.

  In addition, the tilt operating means 202 for tilting the object support body 92 with respect to the ascending / descending moving body 91 reduces the amount of tilt operation compared to the above-described tilt operating means 58 for tilting the entire lift device F. be able to.

  Therefore, the tilt actuating means 202 can be reduced in size, and the weight of the aircraft can be reduced.

  Furthermore, since the helical gear 227 and the worm 230 are engaged with each other, the lifted object support 92 can be held in the tilted posture even when the hand is released from the tilt operation handle 231.

[Tilt operation means 203 as an example of transformation]
20 and 21 show a tilt operation means 203 as a modification example. The tilt operation means 203 forms a male screw part 234 at the right end portion of the eccentric cam support shaft 225, while the lower frame body. A female screw part 235 is provided at the right end part of the forming piece 218, the male screw part 234 is screwed into the female screw part 235, and a tilt operation handle 231 is attached to the right end part of the eccentric cam spindle 225. Yes.

  In this way, by gripping the grip portion 232 of the tilt operation handle 231 and rotating the tilt operation handle 231, the eccentric cam support shaft 225 is rotated about its axis, and is advanced and retracted in the axial direction. The eccentric cams 226 and 226 attached to the eccentric cam support shaft 225 can be rotated.

  Then, as shown in FIG. 21 (a), the rotational positions of the eccentric cams 226, 226 are changed from the state (f) in which the front extending support pieces 113, 113 of the object support body 92 are inclined forward and inclined. By displacing by 180 degrees, it is possible to change to a state in which the tilt posture (e) in the upward tilt state is taken.

[Lift Device F as Third Embodiment]
The lift device F as the third embodiment has the same basic structure as the lift device F as the second embodiment described above, as shown in FIGS. 96 different.

  That is, the lifting guide body 95 of the lift device F according to the third embodiment extends in the vertical direction and is C-shaped in plan view in which the front surface and the top and bottom surfaces are open, like the lifting guide body 95 according to the first embodiment. A pair of left and right guide rail portions 110, 110 are formed on the left and right side portions, and the movable body main piece 104 is disposed between the two guide rail portions 110, 110. A support attachment frame piece 109 is disposed at the immediately preceding position.

  The reinforcing body 96 includes a left-right direction connecting piece 208 that crosses between the middle parts of the elevating guide body 95, a top left-right side end part of the left-right direction connecting piece 208, and a middle part of the guide rail parts 110, 110. And a pair of left and right vertical connecting pieces 240, 240 installed in a slanted manner, and the two vertical connecting pieces 240, 240 are formed so as to project outwardly from the lifting guide body 95 to the left and right sides and have no gripping portion. ing.

  Therefore, when attaching and detaching the lift device F to the traveling vehicle body B, the operator can easily attach and detach the lift device F by gripping the longitudinal connecting pieces 240 and 240 that are gripping portions of the reinforcing body 96.

  In addition, a pair of left and right engaging pieces 102, 102 are attached to the left and right direction connecting piece 208, and each engaging piece 102, 102 is disposed in an inclined manner along the inclined mounting support pieces 63, 63, and the upper end portions thereof are connected to each other. It is made to join.

Side explanatory drawing of the small riding work machine concerning this invention. Plane explanatory drawing of the small riding work machine. The front view of the small riding work machine. Installation explanatory drawing of a lift apparatus. Side surface explanatory drawing of a lift apparatus. Plane explanatory drawing of the lift apparatus. Expansive plane explanatory drawing of a raising / lowering operation means. Expansive front explanatory drawing of the raising / lowering operation means. Side surface explanatory drawing of the attachment mechanism as a modification example. Plane explanatory drawing of the attachment mechanism. Side surface explanatory drawing of the lift apparatus as 2nd Embodiment. Front explanatory drawing in the removal state of the lift apparatus. The top view of the lift apparatus. Front explanatory drawing of a raising / lowering guide frame. Side notch side explanatory drawing of the same raising / lowering guide frame. The partially notched top view of the same raising / lowering guide frame. Side surface explanatory drawing of a raising / lowering moving body and a to-be-lifted object support body. The front view of the raising / lowering moving body and a to-be-lifted object support body. The partial notch top view of the same raising / lowering moving body and to-be-lifted object support body. Front explanatory drawing of the tilt operation means as a modification example. Explanatory drawing of the tilt attitude | position of a to-be-lifted object support body. Side surface explanatory drawing of the lift apparatus as 3rd Embodiment. Front explanatory drawing in the removal state of the lift apparatus. The top view of the lift apparatus. Front explanatory drawing of a raising / lowering guide frame. Side notch side explanatory drawing of the same raising / lowering guide frame. The partially notched top view of the same raising / lowering guide frame.

Explanation of symbols

A Small riding work machine B Traveling vehicle body C Connection mechanism D Tillage device E Mounting mechanism F Lift device 1 Traveling part 2 Body frame 3 Driving part 4 Motor part 5 Mission part

Claims (5)

In a small riding work machine that can connect various working devices to the rear of a self-propelled traveling vehicle body via a connecting mechanism,
A small riding work machine having a lift device mounted in front of a traveling vehicle body.   The lifting device includes a lifting guide frame that is erected at the front end of the traveling vehicle body, a lifting moving body that is attached to the lifting guide frame so as to be movable up and down, and a body that is attached to the lifting and moving body and supports an object to be lifted. 2. A lifting / lowering object support, and a manual lifting / lowering means for ascending / descending the lifting / lowering object support connected to the lifting / lowering object support through a lifting / lowering moving body. Small riding machine. The elevating guide frame body includes an elevating guide body extending in the vertical direction and a reinforcing body for reinforcing the elevating guide body,
The small riding work machine according to claim 2, wherein the reinforcing body is formed as a pair of left and right grips by forming the left and right side portions so as to project outward from the lifting guide body to the left and right sides. A driving part is arranged at the front part of the traveling vehicle body, and at the position immediately before the steering operation tool provided in the driving part, the lifting guide body is raised above the central part of the front end of the traveling vehicle body, and arranged.
4. The small riding work machine according to claim 3, wherein a grip portion of the reinforcing body provided in the lifting guide body is disposed at a position lower than a grip portion of the steering operation tool. The elevating guide frame body includes a pair of left and right elevating guide bodies extending in the up and down direction, upper and lower connecting bodies for connecting the upper and lower parts of both elevating guide bodies, and a frame continuously connected to both the elevating guide bodies. And a reinforcing member in the shape of
3. The reinforcing body according to claim 1 or 2, wherein left and right side portions are formed so as to project outward from the left and right guide bodies to the left and right outer sides, and the left and right side portions are formed as a pair of left and right grips. Small riding machine.

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