WO2006077679A1 - Tracteur - Google Patents

Tracteur Download PDF

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Publication number
WO2006077679A1
WO2006077679A1 PCT/JP2005/018188 JP2005018188W WO2006077679A1 WO 2006077679 A1 WO2006077679 A1 WO 2006077679A1 JP 2005018188 W JP2005018188 W JP 2005018188W WO 2006077679 A1 WO2006077679 A1 WO 2006077679A1
Authority
WO
WIPO (PCT)
Prior art keywords
slip
piece
seat
hydraulic
driver
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2005/018188
Other languages
English (en)
Japanese (ja)
Inventor
Yozo Oka
Bunei Katagiri
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanmar Co Ltd
Original Assignee
Yanmar Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yanmar Co Ltd filed Critical Yanmar Co Ltd
Publication of WO2006077679A1 publication Critical patent/WO2006077679A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
    • B60N2/14—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable rotatable, e.g. to permit easy access
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D33/00—Superstructures for load-carrying vehicles
    • B62D33/06—Drivers' cabs
    • B62D33/0617—Drivers' cabs for tractors or off-the-road vehicles
    • B62D33/0625—Drivers' cabs for tractors or off-the-road vehicles open
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/16—Cabins, platforms, or the like, for drivers
    • E02F9/166—Cabins, platforms, or the like, for drivers movable, tiltable or pivoting, e.g. movable seats, dampening arrangements of cabins

Definitions

  • the present invention relates to a structure of a floor portion of an operation unit in a tractor.
  • the anti-slip body is integrally formed of a rubber material or the like from a sheet-like main body having a size covering almost the entire surface of the floor and an anti-slip protrusion formed on the upper surface of the sheet-like main body.
  • the anti-slip body has a cushion function and an anti-slip function.
  • the anti-slip body is sized to cover almost the entire surface of the floor. Because it is formed, it leads to cost increase.
  • Patent Document 1 Japanese Patent Laid-Open No. 9-175250
  • a truck having a non-slip body provided on the floor of the operation unit is provided.
  • a pair of left and right projecting bodies that form a part of the floor portion are formed in a projecting manner on the left and right sides, and a recess for fitting the upper surface opening is formed, and an anti-slip body is provided in each mating recess. Put it in a detachable way! / Speak.
  • the anti-slip body is detachably fitted in the fitting recess formed in the pair of left and right projecting bodies that form part of the floor, the anti-slip body If the anti-slip function is not fulfilled due to wear or the like, the anti-slip body can be easily dealt with by removing the mating recess force and replacing it.
  • the anti-slip body can be formed compactly so as to be provided on the left and right sides of the floor, which is a place where an operator steps on his / her foot, so that the cost can be reduced.
  • the anti-slip body can be appropriately exchanged according to the preference of the operator, Can improve the mental working environment.
  • a mud dropping hole penetrating in the vertical direction is formed in the anti-slip body.
  • the anti-slip body is formed with a mud drop hole penetrating in the vertical direction, so that it is possible to prevent mud etc. from accumulating on the surface of the anti-slip body,
  • the anti-slip function of the anti-slip body can be secured satisfactorily.
  • a mud discharge hole penetrating in the vertical direction is formed in the fitting recess.
  • FIG. 1 is an explanatory side view of a tractor according to the present invention.
  • FIG. 2 An enlarged side view of the latter half of the tractor.
  • FIG. 3 is an enlarged plan view of the latter half of the tractor.
  • FIG. 4 is a sectional side view of the clutch part and the transmission part.
  • FIG. 5 Front view of the power take-out part.
  • FIG. 6 is a cross-sectional explanatory view taken along the line II of FIG.
  • FIG. 7 is an explanatory side view of the driving unit.
  • FIG. 8 is a rear view of the operation unit.
  • FIG. 9 is an explanatory plan view of the operation unit.
  • FIG. 10 is a perspective explanatory view of a non-slip body.
  • FIG. 11 is an explanatory diagram of a non-slip body as a second embodiment.
  • FIG. 12 is an explanatory diagram of a non-slip body as a third embodiment.
  • FIG. 13 is a cross-sectional plan view of a power take-out unit as a second embodiment.
  • FIG. 14 is an explanatory diagram of a hydraulic circuit unit as a second embodiment.
  • FIG. 15 is an explanatory diagram of a hydraulic circuit unit as a third embodiment.
  • FIG. 16 is an explanatory diagram of a hydraulic circuit unit as a fourth embodiment.
  • FIG. 17 is an explanatory diagram of a hydraulic circuit unit as a fifth embodiment.
  • FIG. 18 is an explanatory diagram of the operation of changing the posture of the driver's seat as the second embodiment.
  • FIG. 19 is an explanatory diagram of the operation of changing the posture of the driver's seat as the third embodiment.
  • FIG. 20 is an explanatory diagram of the operation of changing the posture of the driver's seat as the fourth embodiment.
  • FIG. 21 is an explanatory diagram of the operation of changing the posture of the driver's seat as the fifth embodiment.
  • a shown in FIG. 1 is a tractor according to the present invention.
  • the tractor A is provided with a motor unit 2 on an airframe frame 1, and a transmission unit 4 is connected to the motor unit 2 via a clutch unit 3.
  • the PTO speed changer 5 is detachably linked to the rear part of the transmission unit 4, and the driving unit 6 is arranged on the transmission unit 4 so that the front axle case is located below the fuselage frame 1.
  • a pair of left and right front wheels 8 and 8 are linked to each other via 7, while a pair of left and right rear wheels 10 and 10 are linked to the transmission section 4 via rear axle cases 9 and 9.
  • the prime mover unit 2 has the engine 15 mounted on the fuselage frame 1, the radiator 16 is disposed immediately before the engine 15 and the radiator 16 is disposed immediately before the radiator 16. Bag A terry 17 is disposed, and a fuel tank 18 formed by extending in the front-rear direction is disposed immediately above the engine 15, and these are covered with a bonnet 19 so as to be opened and closed. 20 is a muffler.
  • the clutch portion 3 rotatably supports an inner / outer double drive shaft 160 extending in the front / rear direction in the clutch housing 21, and
  • the heavy drive shaft 160 is formed of an inner drive shaft 161 extending in the front-rear direction and a cylindrical outer drive shaft 162 that is rotatably fitted to the outer periphery of the inner drive shaft 161.
  • the base end portion (front end portion) of one inner drive shaft 161 is linked to the engine 15 via the traveling clutch 22, and the front end portion (rear end portion) of the inner drive shaft 161 is connected. ) Is linked to a traveling transmission mechanism 163, which will be described later, and the base end (front end) of the other outer drive shaft 162 is linked to the engine 15 via the PTO clutch 23, and The front end portion (rear end portion) of the outer drive shaft 162 is linked to a PTO transmission mechanism 164 described later.
  • the dual clutch mechanism 165 is configured by arranging the traveling clutch 22 and the PTO clutch 23 in the clutch housing 21 so as to be coaxially close to each other.
  • the mission unit 4 includes a main transmission mechanism 166 and a sub-transmission mechanism 167 in the order that the forward force is also moved backward in a mission case 24 that is extended in the front-rear direction and formed into a cylindrical shape.
  • a differential mechanism 168 is disposed to form a traveling system transmission mechanism 163 that can perform a main shift and a sub-shift, and a PTO system is interposed between the outer drive shaft 162 and a PTO transmission unit 5 described later.
  • a transmission mechanism 164 is provided.
  • the transmission case 24 includes a main transmission case 25 incorporating a main transmission mechanism 166, a sub transmission case 26 incorporating a sub-transmission mechanism 167, and a differential case 27 incorporating a differential mechanism 168. Form it in three parts!
  • a power takeout portion 28 is provided on one side of the mission unit 4, that is, the left front portion in the present embodiment. Is attached to the front part of the left side wall of the main transmission case 25 by a detachable power take-off case 29 via a mounting bolt 30 and bearings 31, 32 in the power take-out case 29.
  • a power take-off shaft 33 with its axis directed forward and rearward is attached to the shaft so as to be rotatable around that axis.
  • a power take-out input gear 34 is attached to the output shaft 33, and the power take-out input gear 34 is engaged with an output gear 169 provided in the PTO transmission mechanism 164 via an intermediate gear 35.
  • 36 is an intermediate gear support shaft
  • 37 is a bearing.
  • the power take-out input gear 34 is integrally formed with a front cylindrical fitting piece 34a extending forward and a rear cylindrical shape extending rearward.
  • the fitting pieces 34b are integrally formed, and both cylindrical fitting pieces 34a and 34b are arranged on the same axis.
  • an air conditioner press 38 as another driving means is detachably attached to the front end of the power take-out case 29, while a hydraulic pump 39 is detachable to the rear end of the power take-out case 29. It is attached.
  • the input shaft 40 projecting backward from the air compressor 38 has a pair of upper and lower engaged portions projecting from the front end of the front cylindrical fitting piece 34a.
  • a front end engaging piece 40a formed at the front end is engaged with the pieces 34c, 34c in a freely detachable manner.
  • 42 is an operation lever provided on the air conditioner press 38, and by operating the operation lever 42, the engagement piece 34c, 34c can be engaged and disengaged with the tip engagement piece 40a.
  • the input shaft 41 projected forward from the hydraulic pump 39 is spline fitted into the rear tubular fitting piece 34b so as to be freely inserted and removed.
  • the power transmitted from the engine 15 to the main transmission mechanism 166 in this way is the output gear ⁇ the intermediate gear 35 ⁇ the power take-out input gear 34 ⁇ the front and rear cylindrical fitting pieces 34a, 34b ⁇ input
  • the shafts 40 and 41 are transmitted to the air compressor 38 and the hydraulic pump 39 so that the air compressor 38 and the hydraulic pump 39 can be driven, respectively.
  • a hydraulic pump 39 and an air compressor 38 which is another driving means, are interlocked and connected to the power take-out section 28, and the hydraulic pump 39 and the air compressor 38 are connected to the above power.
  • the hydraulic pump 39 and the air compressor 38 are connected to the above power.
  • the hydraulic pump 39 and the air compressor 38 are arranged on the same imaginary line extending in the front-rear direction with the power take-out portion 28 interposed therebetween.
  • the power take-out section 28 can also be used for both the drive of the hydraulic pump 39 and the drive of the air compressor 38, the number of parts can be reduced and the manufacturing cost can be reduced. It is out.
  • a hydraulic filter 101 and a hydraulic oil tank 102 are connected in series to the hydraulic pump 39 via a hydraulic pipe 100, and the hydraulic pump 39 is also connected.
  • the hydraulic filter 101 and the hydraulic oil tank 102 are arranged close to each other.
  • the hydraulic pipe 100 includes a hydraulic oil supply pipe 103 interposed between the hydraulic oil tank 102 and the hydraulic pump 39, a hydraulic pump 39, and a differential valve described later.
  • Hydraulic fluid pipe 104 interposed between the hydraulic circuit body 52 (see FIG. 4) disposed at the upper part of the case 27 and hydraulic oil return interposed between the hydraulic circuit body and the hydraulic oil tank 102. It is formed from a tube (not shown).
  • the hydraulic oil tank 102 is disposed between the auxiliary transmission case 26 and a left-side fender forming piece 74 described later. It is attached in a erected state via a front mounting bracket 106 provided on the left side and a rear mounting bracket 107 provided on the left side wall of the differential case 27.
  • the hydraulic oil tank 102 is disposed at a low position so that the oil supply port 108 provided in the ceiling portion is located below the ceiling portion of the differential case 27, and the left rear case 9 Place it in front of!
  • the hydraulic filter 101 is formed of a supply pipe coupling body 109 and a filter body 110 that is detachably attached to the supply pipe coupling body 109.
  • the pipe connector 109 is connected in communication with the distal end portion of the upstream hydraulic oil supply pipe 111 that forms the hydraulic oil supply pipe 103, and is connected in communication with the base end portion of the downstream hydraulic oil supply pipe 112.
  • the downstream hydraulic oil supply pipe 112 rises upward from the ceiling of the hydraulic pump 39 and extends outward, and is connected to the supply pipe connector at the base end (upper end). 109 Support in communication.
  • the filter main body 110 is formed in a bottomed cylindrical shape extending in the left-right direction, accommodates a filter (not shown) therein, and the opening connecting portion 113 formed at the right end is connected to the supply pipe. Connect the connecting part 114 of the connecting body 109 detachably from the left and right direction.
  • the filter body 110 is disposed at a position immediately in front of the left fender forming piece 74, and the axis Pf of the filter body 110 is set to the axis of the left rear wheel shaft 10. In this embodiment, it is arranged in a direction substantially parallel to Ps and slightly forward and outward.
  • the hydraulic pump 39, the hydraulic filter 101, and the hydraulic oil tank 102 are provided between the left front wheel 8 and the left rear wheel 10 and a left cover forming body 70 described later. It is concentrated in the lower position.
  • the hydraulic pump 39 is linked and connected to the power take-off portion 28 provided on the left side wall of the main transmission case 25, and the hydraulic pump 39, the hydraulic filter 101, and the hydraulic oil tank 102 are arranged close to each other. Therefore, these can be concentrated and arranged in a compact manner, and assembling and maintenance can be secured satisfactorily.
  • the hydraulic pump 39 and the hydraulic filter 101 are arranged between the left front wheel 8 and the left rear wheel 10, the assembling work of the hydraulic pump 39 and the hydraulic filter 101 is a maintenance work. Can be performed easily with the lateral force of the aircraft, and the work efficiency can be improved.
  • the filter main body 110 is directed in a direction in which the axis Pf is substantially parallel to the axis Ps of the left rear wheel axle 10 at a position immediately before the left rear wheel 10, or slightly forward and outward in this embodiment.
  • the filter body 110 can be easily maintained and replaced.
  • the filter main body 110 since the filter main body 110 has a high frequency of maintenance work and replacement work, it is possible to greatly improve the work efficiency.
  • a lever base case 43 is continuously connected to the ceiling portion of the auxiliary transmission case 26, and a lever interlocking mechanism (see FIG. Not shown) Connect the base end (lower end) of the main gearshift lever 44 and the sub gearshift lever 45 together!
  • a front wheel drive power take-out case 46 is connected to the bottom of the auxiliary transmission case 26, and the front wheel drive power take-out case 46 is connected to the bottom.
  • a transmission shaft 47 extending in the front-rear direction (see FIG. 1) between a provided front wheel power take-out mechanism (not shown) and a front wheel drive mechanism (not shown) provided in the front axle case 7. See).
  • the differential case 27 is mounted on the left and right side walls with the rear axle cases 9, 9 and linked to the rear axle cases 9, 9 in conjunction with the differential mechanism.
  • the axles 48 and 48 are supported rotatably.
  • an opening 49 for maintenance is formed in the ceiling part of the differential case 27, and as shown in FIG. 3.
  • a lift arm support body 50 formed in a ring shape is detachably attached, and a hydraulic circuit body support piece 51 having a short cylindrical shape is formed in the vertical direction at the front of the lift arm support body 50, and the hydraulic circuit body support piece
  • a hydraulic circuit body 52 is detachably attached to 51, and a hydraulic control valve (not shown) is attached to the hydraulic circuit body 52.
  • the lift arm support 50 is formed by raising a pair of left and right pivot pieces 50a, 50a upward, and between the pivot pieces 50a, 50a in the left-right direction.
  • the lift arm support shaft 53 extends horizontally, and the base ends of a pair of left and right lift arms 54, 54 are attached to the left and right ends of the lift arm support shaft 53.
  • Lift cylinders 56 and 56 that extend and contract in the vertical direction are interposed between the midway part and lower left and right side walls of a PTO transmission case 55 described later.
  • 57 and 58 are cylinder connecting pins.
  • the PTO transmission unit 5 has a PTO transmission case 55 linked to the rear wall of the differential case 27 of the transmission unit 4, and is connected to the PTO transmission case 55.
  • a PTO transmission mechanism (not shown) that constitutes a part of the PTO transmission mechanism is provided, and a PTO shaft 59 that forms a terminal portion (rear end portion) of the PTO transmission mechanism is projected rearward.
  • the operation unit 6 has a dashboard 60 erected so as to close the rear end opening of the bonnet 19 provided in the prime mover unit 2, and the dashboard 60 is provided at the upper end of the dashboard 60.
  • Meter panel 61 is provided, and the steering wheel support shaft 62 is projected upward from the meter panel 61.
  • a steering wheel 63 is attached to the upper end of the steering wheel support shaft 62, and the rear side of the steering wheel 63 and the transmission are installed.
  • the driver's seat 64 is arranged just above the part 4.
  • a cover body 65 is stretched over the operation section 6, the transmission section 4, and the left 'right rear wheels 10 and 10, and the cover body 65 is operated.
  • the step part of the part 6 is formed and the upper part of the mission part 4 is covered.
  • each formed body 70, 71, 72 is removably attached to a pair of left and right front support frames 66, 66, a rear support frame 67, and a pair of left and right fundus support bodies 68, 68, respectively.
  • Reference numeral 69 denotes an auxiliary step body attached to the front support frame body 66.
  • the left cover forming body 70 covers the left side step forming piece 73 forming the left side portion of the step portion and the front and the upper side of the left rear wheel 10.
  • the left fender forming piece 74 is integrally formed of a lightweight synthetic resin such as FRP. 7 5 is a left handrail part.
  • the right cover forming body 71 includes a right step forming piece 76 that forms the right side portion of the step portion, and a right fender forming piece 77 that covers the front and the upper side of the right rear wheel 10, and has a lightweight F. It is formed integrally with a synthetic resin such as RP.
  • Reference numeral 78 denotes a right auxiliary handrail.
  • Intermediate cover forming body 72 forms a central portion of the step portion, and forms a central step that covers the upper surface of the rear portion of clutch housing 21, the upper surface of main transmission case 25, and the upper surface of auxiliary transmission case 26. It is divided into a piece 79 and a mission part covering piece 80 that covers the upper part of the mission part 4.
  • the central step forming piece 79 is formed of a lightweight synthetic resin such as FRP, while the mission section covering piece 80 is formed in a vertically long rectangular plate shape in the front-rear direction by a rigid member having iron equal force. Yes.
  • the left-side step forming piece 73 and the right-side step forming piece 76 are provided with anti-slip bodies 81 and 81, respectively. That is, as shown in FIG. 10, the left-side step forming piece 73 is formed with a fitting recess 82 having an upper surface opening, and a non-slip body 81 formed in a shape matching the fitting recess 82 is attached and detached. Place it by fitting it to you.
  • the non-slip body 81 includes a non-slip main piece 83 formed in a rectangular plate shape, and leg pieces 84 at the front, rear, left and right corners of the bottom surface of the non-slip main piece 83.
  • leg pieces 84 at the front, rear, left and right corners of the bottom surface of the non-slip main piece 83.
  • 84, 84, 84, and a non-slip main piece 83 is formed with a number of holes 85 in order to form a punched mud or the like that penetrates downwardly upward.
  • the slip force also has an anti-slip projection 86 in the shape of a bank on the periphery of the upper surface of the mud dropping hole 85.
  • the fitting recess 82 is formed in a stepped recess having a rectangular shape in plan view, and a plurality of mud discharge holes 87 penetrating in the vertical direction are formed in the bottom portion 82a.
  • the anti-slip body 81 can be fitted into the fitting recess 82.
  • the upper surface of the anti-slip main piece 83 of the anti-slip body 81 is flush with the upper surface of the left step forming piece 73, and the anti-slip protrusion 86 is the upper surface of the left step forming piece 73. It is designed to protrude upwards.
  • a mud soil storage space S is formed between the lower surface of the anti-slip main piece 83 and the upper surface of the bottom portion 82a of the fitting recess 82 via leg pieces 84, 84, 84, 85. So that
  • the anti-slip member 81 is similarly attached to the right-side step forming piece 76.
  • the non-slip body 81 can be detachably fitted to the fitting recess 82 formed on the pair of left and right step forming pieces 73, 76.
  • the anti-slip member 81 can be easily dealt with by taking out the replacement recess 82 and replacing it.
  • the non-slip body 81 is provided with each step forming piece, which is a place where an operator particularly steps on his / her foot.
  • the anti-slip body 81 can be appropriately replaced according to the preference of the operator, It can improve the psychological working environment of the operator.
  • the anti-slip body 81 is provided with a mud dropping hole 85 penetrating in the vertical direction, it is possible to prevent mud from being deposited on the upper surface of the anti-slip body 81.
  • the anti-slip function of the anti-slip body 81 can be ensured satisfactorily.
  • mud, dust, etc. dropped through the mud dropping hole 85 of the anti-slip body 81 can be accommodated in the mud dirt accommodating space S formed in the fitting recess 82, and for fitting. It can be easily dropped to the outside through a mud discharge hole 87 formed by penetrating the bottom 82a of the recess 82 in the vertical direction, and the inside of the fitting recess 82 can be easily cleaned.
  • the left fender forming piece 74 is formed by raising V at the left side position of the driver's seat 64 and above the rear outer edge of the left step forming piece 73.
  • the rising force S wall 74a and the protruding wall 74b formed outwardly from the upper edge of the rising wall 74a are formed into force.
  • 77a is a rising wall of the right fender forming piece 77
  • 77b is an overhanging wall of the right fender forming piece 77.
  • the rear part of the left step forming piece 73 is also arranged as close as possible to the left rear axle case 9 so that the ground clearance is lower than the rear part of the right step forming piece 76.
  • a lower limb movement space 90 is formed between the rising wall 74a and the driver seat 64.
  • a toe part moving recess 91 that is recessed outward from the upper surface of the rear part of the left-side step forming piece 73 is formed at the front and lower half of the rising wall 74a.
  • the left and right widths of the rear portion of the step forming piece 73 are formed so as to be wide by the recess width W of the toe portion moving recess 91.
  • the driver seat 64 is mounted on the rear support frame 67 via the driver seat support 92, and the driver seat support 92 Is a fixed side support piece 93 fixed to the rear support frame 67, and a slide side that can be slidably adjusted in the front-rear direction on the fixed side support piece 93 and rotated about the vertical axis P.
  • the driver's seat 64 is formed of a seat portion 64a and a backrest portion 64b formed by rising from the rear edge of the seat portion 64a, and the seat portion 64a
  • the seat 64a is configured such that the slide position can be adjusted in the front-rear direction via the slide-side support piece 94 and is rotatable around the vertical axis P.
  • the rotation lever 95 for rotating the seat 64a around the vertical axis P and the slide position of the seat 64a are adjusted in the front-rear direction.
  • a slide operation lever 96 is provided.
  • the axial force P that is the rotational center position of the seat 64a, that is, the driver's seat 64 is also the lateral position on the opposite side to the lower limb movement space 90 side from the center position C in the lateral width direction of the aircraft.
  • the right side position is offset by a certain width Z.
  • the driver's seat 64 can adjust the slide position in the front-rear direction by operating the slide operation lever 96 described above, and can also operate the axis line by operating the rotation operation lever 95. Rotate 180 degrees toward the lower limb movement space 90 around P and rotate between the forward sitting position (a) and the backward sitting position (b).
  • the driver seat 64 is adjusted to slide backward and backward, so that the front end portion 64e of the driver seat 64 (seat portion 64a) is moved backward from the forward position VI.
  • the front end 64e of the driver's seat 64 is brought close to the axis P that is the rotation center, and the rotation radius of the front end 64e is reduced, in other words, the lower limb movement space 90 described above is formed.
  • a large secured state is assumed.
  • the driver's seat 64 is rotated to the lateral position V3 rotated 90 degrees leftward about the axis P, and further to the rearward position V4 rotated 180 degrees leftward.
  • the worker M seated in the driver's seat 64 moves the lower limb K through the lower limb movement space 90 from the rear slide position V2 to the lateral position V3 to the rearward position V4.
  • the position change between the forward seating position (a) and the rearward seating position (b) of the seat 64 can be performed easily and smoothly while sitting on the driver's seat 64. As a result, the work mode change efficiency can be improved.
  • the worker M who is also seated in the driver's seat 64, moves the toe portion T along the rotational movement path Q. Moving forward from the toe-portion moving recess 91 to the rear slide position V2 ⁇ lateral position V3 ⁇ rearward position V4 The position can be changed smoothly and reliably between a) and the rearward sitting position (b).
  • the position of the axis P which is the rotation center position of the driver's seat 64, is set to a center position C in the lateral width direction of the fuselage at a constant width Z at a right side position opposite to the lower limb movement space 90 side. Therefore, when the driver's seat 64 is rotated toward the lower limb movement space 90 side, a large turning radius of the driver's seat 64 can be secured and the driver's seat 64 can be seated.
  • the operator M can change the position of the driver's seat 64 forward and rearward while sitting on the driver's seat 64 even more easily and smoothly.
  • the rotating operation and sliding operation of the driver's seat 64 that can be carried out are not limited to the above case, and the sliding operation can also be performed once the rotating operation is performed.
  • FIG. 11 shows a non-slip body 81 as a second embodiment.
  • FIG. 11 (a) is a plan view of the anti-slip body 81
  • FIG. 11 (b) is a side view of the anti-slip body 81. is there.
  • the anti-slip member 81 as the second embodiment includes a support frame piece 120 formed in a quadrangular frame shape along the peripheral wall of the fitting recess 82 and the left and right side portions of the support frame piece 120. It consists of a plurality of non-slip main pieces 121 installed at a certain interval in the front-rear direction, and a mud drop groove 122 is formed between the non-slip main pieces 121, 121 adjacent to the front-rear direction. .
  • Each anti-slip main piece 121 is formed by extending in the left-right direction, and a serrated anti-slip projection 123 is formed on the upper edge, and the anti-slip projection 123 is formed on the support frame piece 120. It protrudes upward from the upper edge of.
  • the non-slip protrusion 123 protrudes above the upper surface of the step forming piece 73 to prevent the slip.
  • a mud dropping groove formed between the non-slip main pieces 121 and 121 adjacent to each other in the front-rear direction. 22 communicates with the mud storage space S formed in the mating recess 82 so that the mud falling through each mud dropping groove 122 can be stored in the mud storage space S. .
  • the mud etc. accommodated in the mud etc. accommodating space S can be easily dropped to the outside through the mud etc. discharge hole 87 formed by penetrating the bottom 82a of the fitting recess 82 in the upward and downward direction.
  • the inside of the fitting recess 82 can be easily cleaned.
  • FIG. 12 shows a non-slip body 81 as a third embodiment.
  • FIG. 12 (a) is a plan view of the anti-slip body 81
  • FIG. 12 (b) is a side view of the anti-slip body 81. is there.
  • the anti-slip member 81 as the third embodiment includes a support frame piece 120 formed in a quadrangular frame shape along the peripheral wall of the fitting recess 82, and a grid-like shape installed in the support frame piece 120.
  • a force is also formed with the non-slip main piece 121, and a large number of mud dropping holes 85 are formed in the non-slip main piece 121.
  • Each of the anti-slip main pieces 121 has a large number of anti-slip protrusions 123 formed on the upper edge of the lattice shape, and the anti-slip protrusions 123 are formed more than the upper edge of the support frame piece 120. It protrudes upward.
  • the mud or the like accommodated in the mud or the like accommodating space S can be easily dropped to the outside through the mud etc. discharge hole 87 formed by penetrating up and down the bottom 82a of the fitting recess 82.
  • the inside of the fitting recess 82 can be easily cleaned.
  • the anti-slip member 81 as the second (or third) embodiment described above has a lower end edge portion 124 of the anti-slip main piece 121 supported. Mud etc. that is placed above the lower edge 125 of the frame piece 120 and flows down along the side surface of the non-slip main piece 121.Support frame piece 120 along the lower edge 124 of the non-slip main piece 121 So that it falls from the lower end edge 125 of the support frame piece 120.
  • FIG. 13 shows a power take-out section 28 as a second embodiment.
  • a hydraulic pump 125 as another drive means is detachably attached to the front end of the power take-out case 29, while the power take-out section 28
  • a hydraulic pump 39 is detachably attached to the rear end of the case 29.
  • the input shaft 126 protruding rearward from the hydraulic pump 125 is removably splined into the front cylindrical fitting piece 34a, while the hydraulic pump 39
  • the input shaft 41 that protrudes forward from the front is fitted into the rear cylindrical fitting piece 34b by a spline so as to be freely inserted and removed.
  • FIG. 14 to FIG. 17 are conceptual hydraulic circuit diagrams of the hydraulic circuit unit 130 as the second to fifth embodiments. Each embodiment will be described below with reference to the drawings.
  • the hydraulic circuit unit 130 includes an operating hydraulic pressure supply passage 132 and an operating oil supply between a first hydraulic pump 131 attached to a side wall of the engine 15 and a lift cylinder 56.
  • a hydraulic flow path 134 is formed by interposing a flow path 133 in parallel, and a flow denoider 135 and a hydraulic valve 136 are provided in series in the middle of the operating hydraulic pressure supply flow path 1 32, while A hydraulic oil tank 102 is provided in the middle of the dynamic oil supply passage 133.
  • the lift cylinder 56 can be extended and contracted by the first hydraulic pump 131.
  • a power steering valve 138 for a hydraulic power steering mechanism is connected to the flow divider 135 via a branch pressure feed passage 137.
  • the first hydraulic pump 131 can be operated to expand and contract a power steering cylinder (not shown) provided in the hydraulic power steering mechanism via the flow divider 135 and the power steering valve 138.
  • an external take-out unit 139 is connected to the hydraulic valve 136, and a hydraulic actuator (not shown) provided in a front work machine, for example, a front loader 140, is connected to the external take-out unit 139. ing.
  • the first hydraulic pump 131 passes the hydraulic valve 136 and the external extraction portion 139.
  • the front loader such as the front loader 140 can be operated.
  • a rear working machine for example, an excavator 141 is connected to the rear position of the machine, and a hydraulic actuator (not shown) provided in the excavator 141 is provided in the second hydraulic pressure provided in the machine. Connected to pump 142.
  • the reservoir tank 144 is connected to the second hydraulic pump 142 via the hydraulic oil supply passage 143, and the hydraulic oil is supplied to the second hydraulic pump 142 through the reservoir tank 144 and the hydraulic oil supply passage 143. To supply.
  • the second hydraulic pump 142 can operate the rear work equipment such as the excavator 141.
  • the hydraulic circuit section 130 according to the third embodiment has a tandem type on the side wall of the force engine 15 having the same basic structure as the hydraulic circuit section 130 according to the second embodiment described above.
  • a hydraulic pump 145 is installed, and a lift cylinder 56 is connected to a front hydraulic pump 1 46 of the tandem hydraulic pump 145 via a hydraulic valve 136, and a relief valve 148 for a hydraulic power steering mechanism is connected to a rear hydraulic pump 147.
  • Reference numeral 149 denotes a relief valve hydraulic fluid pressure feed passage.
  • bifurcated branch channels 150 and 151 are formed at the tip of the hydraulic oil supply channel 133, and the tip of each branch channel 150 and 151 is connected to the front and rear hydraulic pumps 146,
  • the hydraulic oil is connected to the hydraulic oil tank 147 so that the hydraulic oil can be supplied from the hydraulic oil tank 102 to the front and rear hydraulic pumps 146 and 147.
  • the hydraulic circuit unit 130 according to the fourth embodiment has a force that has the same basic structure as the hydraulic circuit unit 130 according to the second embodiment described above.
  • the relief valve 148 for the hydraulic power steering mechanism is connected to the second hydraulic pump 142 via the hydraulic valve 136, and the lift cylinder 56 is connected to the second hydraulic pump 142 via the hydraulic valve 136.
  • the hydraulic actuators (not shown) provided in the excavator 141 as a work machine are connected in communication and are different. [0122] Then, hydraulic oil is supplied to the first hydraulic pump 131 and the second hydraulic pump 142 through branch pipes 150 and 151 formed by bifurcating branches from the hydraulic oil tank 102 to the tip of the hydraulic oil supply flow path 133. Like you do.
  • a PTO clutch 152 is connected to the second hydraulic pump 142, and the PTO clutch 152 is connected to the second hydraulic pump 142.
  • the hydraulic circuit unit 130 as the fifth embodiment is a power steering operation unit.
  • the power steering operation unit 153 communicates the first hydraulic pump 131 with a relief valve 148 for a hydraulic power steering mechanism, and also connects the first hydraulic pump 131 with a paste hydraulic oil supply channel 156.
  • a power steering hydraulic oil tank 157 is formed in communication.
  • the first hydraulic pump 131 can be operated to operate the hydraulic power steering mechanism!
  • the lifting operation unit 154 is connected to the second hydraulic pump 142 via the hydraulic valve 136 and the lift cylinder 56, and is connected to the second hydraulic pump 142 via the hydraulic oil supply pipe 133. 102 is formed by connecting and communicating.
  • the lift cylinder 56 can be expanded and contracted by the second hydraulic pump 142.
  • the air compressor 38 as another driving means is interlocked and connected to the second hydraulic pump 142.
  • the rear work machine operating unit 155 is connected to the tandem hydraulic pump 158 in communication with a hydraulic actuator (not shown) provided in the excavator 141 as a rear work machine, and the tandem hydraulic pump 158.
  • a reservoir tank 144 is connected in communication via a hydraulic oil supply passage 143.
  • tandem hydraulic pump 158 can be used to operate a retrofit machine such as the excavator 141!
  • FIGS. 18 to 21 are explanatory views of the posture changing operation of the driver's seat 64 as the second to fifth embodiments. There will be described below for each embodiment with reference to the drawings.
  • the driver seat 64 as the second embodiment is placed on the driver seat support 92 via the movable support 170, and the movable support 170 is arranged around the axis in the left-right direction.
  • a forward-facing seating position (a) where the operator can seat the driver's seat 64 supported by the movable support 170 in the forward direction (a), and a rear-facing seat where the worker can seat backward.
  • the position can be changed to position (b).
  • the driver's seat 64 is formed by connecting the front seat / backrest 64c and the rear seat / back 64d in a "U" shape when viewed from the side, and the front seat / back 64c.
  • the rear seat / backrest 64d stands up and can be used as a backrest
  • the front seat part / backrest part 64c stands up and can be used as a backrest part.
  • the movable support 170 includes a front movable support piece 171 that supports the front seat / backrest 64c and a rear movable support piece 172 that supports the rear seat / back 64d, as viewed from the side.
  • 173 and 173 are pivotally supported by pivot shafts 174 and 174 with their axes directed in the left-right direction.
  • 185 is a front abutment support leg piece attached to the front part of the front movable support piece 171
  • 186 is a rear abutment / support leg piece attached to the rear part of the rear side movable support piece 172.
  • the movable support 170 is rotated in the front-rear direction around the pivot shafts 174, 174 to support either the front-rear contact or the support leg pieces 185, 186 in the driver's seat.
  • the posture of the driver's seat 64 supported by the movable support 170 is changed to one of the forward seating position (a) and the rearward seating position (b). It is possible to let you.
  • c is a rotation direction for changing the position to the forward sitting position (a) force and the backward sitting position (b).
  • the front end portion of the front movable support piece 171 is pivotally supported by a pivot pin 176 having an axis line in the left-right direction on the base end portion of the hook-shaped front side locking piece 175 and the front side.
  • a tension spring 177 as an elastic means is interposed between the base of the locking piece 175 and the front of the front movable support piece 171. Then, the front locking piece 175 is biased counterclockwise around the pivot pin 176 in the side view shown in FIG. The front side locking piece 178 protruding from the front is locked.
  • the front side locking piece 175 is provided with a front side locking release operation piece 179 at the front end thereof, and the front side locking piece 175 is held by the tension spring 177 with the front side locking release operation piece 179 interposed therebetween.
  • the locked state with the front locked piece 178 can be released.
  • the base end portion of the hook-like rear locking piece 180 is pivotally supported via a pivot pin 181 having an axis line in the left-right direction.
  • a tension spring 182 as an elastic means is interposed between the base of the rear locking piece 180 and the rear portion of the rear movable support piece 180, and the rear locking piece 180 is As seen from the side view shown in FIG. 18, it is urged to rotate clockwise around the pivot pin 181 so that it is locked to the rear side locking piece 183 projecting from the rear part of the driver seat support 92. And then.
  • a rear side locking release operation piece 184 is provided at the tip of the rear side locking piece 180, and the rear side locking piece 180 is sandwiched between the rear side locking release operation pieces 184.
  • the driver seat 64 is configured such that the seat position 64a is moved in the front-rear direction d through the slide-side support piece 94 on the fixed-side support piece 93 of the driver seat support 92.
  • the backrest 64b is detachably attached to the front and rear of the slide-side support piece 94, and the driver's seat 64 is positioned in the forward seating position (a) and the rearward seating position (b).
  • the driver seat 64 is configured such that the seat position 64a is moved in the front-rear direction d through the slide-side support piece 94 on the fixed-side support piece 93 of the driver seat support 92.
  • the backrest 64b is detachably attached to the front and rear of the slide-side support piece 94, and the driver's seat 64 is positioned in the forward seating position (a) and the rearward seating position (b).
  • the driver seat 64 is positioned in the forward seating position (a) and the rearward seating position (b).
  • the left and right ones extending toward the front upper side are formed on the left and right front portions of the slide-side support piece 94.
  • a pair of cylindrical front insertion receptacles 187, 187 are fixed, and a pair of left and right cylindrical rear insertion receptacles extending rearward and upward on the left and right rear portions of the slide side support piece 94
  • a pair of left and right rod-like insertion pieces 189, 189 extending downward are provided at the left and right lower ends of the backrest portion 64b, and both insertion pieces 189, 189 are connected to the front portion.
  • the backrest portion 64b can be attached to the seat portion 64a in an upright state by being detachably inserted into the insertion receptacles 187, 187 or the rear insertion receptacles 188, 188.
  • the driver's seat 64 in the forward sitting position (a) has a backrest portion 64b in a state where the insertion pieces 189,189 are inserted into the rear insertion reception pieces 187, 187.
  • Position (posture) can be changed
  • the driver seat 64 is configured such that the seat 64a is attached to the support piece 93 on the fixed side of the driver seat support 92, while the backrest 64b is front-rear with respect to the seat 64a.
  • the position of the driver's seat 64 can be changed between the forward seating position (a) and the rearward seating position (b).
  • the backrest portion 64b includes the first, second, third, and fourth backrest forming pieces 191, 192,193,194 extending in the left-right direction between the pair of left and right support pieces 190, 190 extending in the up-down direction.
  • the lower ends of the pair of left and right support pieces 190 and 190 are pivotally supported by pivots 195 and 195 with the axis line directed in the left and right direction on the rear support frame 67. Thus, it can be rotated in the front-rear direction about the two pivot axes 195, 195.
  • j is the forward rotation direction.
  • both support pieces 190, 190 are brought into contact with the front end portions of the both front and rear turn restricting pieces 196, 196.
  • the forward rotation of both support pieces 190 and 190 is restricted to the rearward seating position (b), while the middle part of both support pieces 190 and 190 is placed at the rear end of both forward and backward rotation restriction pieces 196 and 196.
  • the rearward rotation of both support pieces 190, 190 is restricted so that the forward seating position (a) can be achieved.
  • the driver seat 64 as the fifth embodiment basically has the same structure as the driver seat 64 as the fourth embodiment described above, but the left and right side portions of the slide side support piece 94 are the same. And the lower end portions of the support pieces 190, 190 are connected and supported via the parallel link mechanisms 197, 197.
  • each parallel link mechanism 197, 197 is provided on the left-right side of the slide-side support piece 94 via the pivot pins 198, 198.
  • the end portions are attached so as to be able to rotate by 180 degrees, and the lower end portions of the support pieces 190 and 190 are connected to the tip portions of the parallel link mechanisms 197 and 197 via connecting pins 199 and 199, respectively.
  • the driver's seat 64 can be easily moved to the forward seating position (a) and the rearward seating position (b) by rotating the backrest portion 64b in the front-rear direction via the parallel link mechanisms 197, 197.
  • the position (posture) can be changed.
  • the tractor according to the present invention is useful for a structure in which a non-slip body is provided on the floor of the operation unit.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Combustion & Propulsion (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

L'invention concerne un tracteur permettant de réduire les coûts associés aux parties anti-glissement. Dans le tracteur comportant les parties anti-glissement sur le plancher d'une partie de fonctionnement, des parties évidées ouvertes vers le haut destinées à l'ajustement sont formées en paire de parties de prolongement gauche et droite formant une partie du plancher en s'étendant vers les côtés extérieurs droit et gauche dans un état étendu, et les parties anti-glissement sont fixées de manière détachable dans les parties évidées destinées à l'ajustement. Par conséquent, quand les parties anti-glissement n'assurent plus leur fonction anti-glissement à cause de l'usure, lesdites parties peuvent être remplacées en les retirant des parties évidées pour récupérer facilement leur fonction. Les parties anti-glissement peuvent être formées de manière compacte pour pouvoir les poser sur les côtés droit et gauche du plancher, particulièrement à l'endroit où un travailleur pose le pied, ce qui permet de réduire le coût du tracteur.
PCT/JP2005/018188 2005-01-18 2005-09-30 Tracteur Ceased WO2006077679A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005-010334 2005-01-18
JP2005010334A JP2006199062A (ja) 2005-01-18 2005-01-18 トラクタ

Publications (1)

Publication Number Publication Date
WO2006077679A1 true WO2006077679A1 (fr) 2006-07-27

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ID=36692074

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2005/018188 Ceased WO2006077679A1 (fr) 2005-01-18 2005-09-30 Tracteur

Country Status (2)

Country Link
JP (1) JP2006199062A (fr)
WO (1) WO2006077679A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5822379U (ja) * 1981-08-07 1983-02-12 株式会社クボタ 農用トラクタのステツプ構造
JPS62151136U (fr) * 1986-03-19 1987-09-25
JP2000052864A (ja) * 1998-08-04 2000-02-22 Toyota Autom Loom Works Ltd 産業車両

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63176839U (fr) * 1987-02-26 1988-11-16
JPH09302723A (ja) * 1996-05-16 1997-11-25 Shin Caterpillar Mitsubishi Ltd 滑り止め機構を備えた建設機械上面カバー
JP3705338B2 (ja) * 2000-03-22 2005-10-12 日立建機株式会社 建設機械の機体上面滑り止め構造

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5822379U (ja) * 1981-08-07 1983-02-12 株式会社クボタ 農用トラクタのステツプ構造
JPS62151136U (fr) * 1986-03-19 1987-09-25
JP2000052864A (ja) * 1998-08-04 2000-02-22 Toyota Autom Loom Works Ltd 産業車両

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