WO2007136058A1 - 作業車両 - Google Patents
作業車両 Download PDFInfo
- Publication number
- WO2007136058A1 WO2007136058A1 PCT/JP2007/060432 JP2007060432W WO2007136058A1 WO 2007136058 A1 WO2007136058 A1 WO 2007136058A1 JP 2007060432 W JP2007060432 W JP 2007060432W WO 2007136058 A1 WO2007136058 A1 WO 2007136058A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- operation panel
- panel body
- shaft
- lever
- pedal
- Prior art date
Links
- 238000012423 maintenance Methods 0.000 abstract description 18
- 230000005540 biological transmission Effects 0.000 description 63
- 241000209094 Oryza Species 0.000 description 21
- 235000007164 Oryza sativa Nutrition 0.000 description 21
- 235000009566 rice Nutrition 0.000 description 21
- 230000007246 mechanism Effects 0.000 description 15
- 210000000078 claw Anatomy 0.000 description 7
- 230000036544 posture Effects 0.000 description 7
- 230000000994 depressogenic effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 210000002105 tongue Anatomy 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000149 penetrating effect Effects 0.000 description 4
- 125000002066 L-histidyl group Chemical group [H]N1C([H])=NC(C([H])([H])[C@](C(=O)[*])([H])N([H])[H])=C1[H] 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000000881 depressing effect Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B69/00—Steering of agricultural machines or implements; Guiding agricultural machines or implements on a desired track
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C11/00—Transplanting machines
- A01C11/003—Transplanting machines for aquatic plants; for planting underwater, e.g. rice
-
- B60K35/10—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
Definitions
- the present invention relates to a work vehicle such as a farm work machine such as a rice transplanter or a tractor or a special work vehicle such as a wheel loader.
- a riding type rice transplanter as an example of a work vehicle includes an engine mounted on a front portion of a traveling machine body, and a steering handle body disposed behind the engine.
- the engine and the steering shaft of the steering handle body are often covered with a cover device that can be divided into multiple parts to facilitate maintenance (especially for the engine)!
- Patent Document 1 discloses a cover device, an operation panel body that covers the upper part of the engine, a front cover body that covers the front part of the engine, a rear part of the engine, and a handle shaft.
- a rear cover body that covers and covers three parts is disclosed.
- Patent Document 1 JP-A-10-210816
- the operation panel body is fixed to the handle shaft by a plurality of bolts, and the upper part of the engine remains covered with the operation panel body. Also, the maintenance of the operation panel body was a hindrance when performing maintenance on the device (eg, air cleaner) at the location. In addition, even if the operation panel was removed, it took time and effort to loosen multiple bolts. That is, in the configuration of Patent Document 1, there is a problem that maintenance work on the upper part of the engine and the devices in the place is inconvenient or difficult.
- the operation panel body is often provided with a display panel for displaying various information about the riding type rice transplanter. In this case, the operation panel body is provided on the back side (above the engine). A control box for the display panel is arranged.
- control box is located between the operation panel body bolted to the handle shaft and the engine. Therefore, when manufacturing the riding type rice transplanter, There was also a problem that the harness was connected to the control box 1 and the workability was poor.
- the present invention has a technical problem to provide a work vehicle in which all the above problems are solved.
- the invention of claim 1 includes a power source mounted at a front portion of a traveling machine body, a steering handle body disposed behind the power source, and the power source.
- An operation panel body covering at least a part of the operation panel body, wherein the steering handle body is in contact with and away from the operation panel body about a horizontal tilt axis. While being configured to be able to rotate up and down, the operation panel body is opened and closed up and down so as to be in contact with and away from the steering handle body about a lateral support shaft that is coaxial or parallel to the tilt shaft.
- the steering handle body and the operation panel body are configured to be rotatable independently of each other.
- the invention of claim 2 is the work vehicle according to claim 1, wherein an upper portion of the traveling machine body that is positioned above the power source is provided on a support member that is erected at a location behind the power source. A rear end portion of the frame is pivotally supported via the lateral support shaft, and a front end portion of the upper frame is detachably connected to the traveling machine body, and the operation panel is connected to the upper frame. When the body is attached, it is a natural thing.
- the operation lever means for operating the traveling machine body protrudes outward from the upper surface of the operation panel body on the work vehicle described in claim 2.
- the base end portion of the operation lever means is attached to the upper frame so as to rotate integrally with the upper frame.
- the invention of claim 4 is the work vehicle according to claim 2 or 3, wherein a front cover body that surrounds the power source and the operation panel body from the front and the rear is provided at a front portion of the traveling machine body.
- the front cover of the upper frame is detachably connected to an auxiliary frame standing in front of the power source in the traveling machine body. When the front cover body is removed, the front end of the upper frame is exposed in front of the operation panel body.
- the steering handle body force disposed behind the power source is arranged so as to be in contact with and separated from an operation panel body covering at least a part of the upper side of the power source with a lateral tilt shaft as a center.
- the operation panel body can be vertically opened / closed and rotated so as to be in contact with and away from the steering handle body about a lateral support shaft that is coaxial or parallel to the tilt shaft.
- the steering handle body and the operation panel body are configured to be independently rotatable.
- the operation panel body is opened upward and rotated about the lateral support shaft.
- the panel body is separated from the upper surface of the power source, and a sufficient space for inserting a hand is opened between the operation panel body and the upper surface of the power source.
- the presence of the operation panel body does not get in the way when performing maintenance on devices (for example, an air cleaner or the like) at the upper part of the power source or at the relevant location.
- devices for example, an air cleaner or the like
- the rear end portion of the upper frame positioned above the power source is disposed on the support member that is erected on the rear portion of the power source in the traveling machine body.
- the front end of the upper frame is detachably attached to the traveling machine body.
- the operation panel body is attached to the upper frame.
- the horizontal support shaft which is the rotation center of the upper frame, is located on the rear end side of the upper frame, that is, on the side close to the steering handle body. If the operation panel body is opened and rotated upward about the lateral support shaft, the space formed between the operation panel body and the upper surface of the power source will be opened forward.
- the operator can perform maintenance on the front side force of the traveling machine body and on the upper part of the power source and the devices at the location. Therefore, during maintenance, the presence of the steering handle body does not get in the way, and the working efficiency can be improved.
- the operation lever means for operating the traveling machine body protrudes outward, and the base end portion of the operation lever means is Since it is attached to the upper frame so as to rotate integrally with the upper frame, the operation lever means is also linked to the horizontal support shaft in conjunction with the vertical opening / closing rotation of the upper frame and the operation panel body. Will be rotated with the center of rotation.
- the front cover body and the rear cover body surrounding the power source and the operation panel body from the front and the rear are detachably attached to the front portion of the traveling machine body.
- a front end portion of the upper frame is detachably connected to an auxiliary frame that is erected in front of the power source in the traveling machine body, and in the state in which the front cover body is removed, Since the front end portion of the frame is exposed to the front of the operation panel body, the operator can hold the front end portion of the upper frame to perform the up / down rotation operation of the upper frame and the operation panel body.
- the front end of the upper frame also has a function as a handle for the vertical opening / closing rotation operation, the upper frame and the operation panel body can be opened / closed even if there is no dedicated handle part. There is an effect that it is possible to contribute to the suppression of the number of parts that can be easily operated.
- FIG. 1 is a side view of a riding rice transplanter as a work vehicle.
- FIG. 2 is a plan view of a riding rice transplanter.
- FIG. 3 is a plan view of the front part of the traveling machine body.
- FIG. 4 is a plan view of the front part of the traveling machine body with the cover body omitted.
- FIG. 5 is a separated side view of the front part of the traveling machine body with the upper frame rotated upward and open.
- FIG. 6 is a perspective view of the steering handle body viewed obliquely from the rear.
- FIG. 7 is a perspective view of the steering handle body and the upper frame as viewed obliquely from the front.
- FIG. 8 is a perspective view of the upper frame as viewed obliquely from the rear.
- FIG. 9 is a side view of the front part of the traveling machine body.
- FIG. 10 is a side view of the front part of the traveling machine body with the upper frame rotated upward and open.
- FIG. 11 is an exploded perspective view of an operation panel body, a bonnet cover body, and a column cover body.
- FIG. 12 is a right side view of the front part of the traveling machine body.
- FIG. 13 is a right side view of the speed change pedal and the brake pedal.
- FIG. 14 is a perspective view of the shift pedal and the brake pedal as viewed obliquely from the front.
- FIG. 15 is an operation explanatory diagram of a vehicle speed adjusting lever.
- FIG. 16 is an explanatory diagram of the operation of the shift pedal.
- FIG. 17 is an explanatory diagram of the operation of the brake pedal.
- FIG. 1 is a side view of a riding rice transplanter as a work vehicle
- Fig. 2 is a plan view of the riding rice transplanter
- Fig. 3 is a plan view of the front of the traveling machine
- Fig. 4 is a traveling machine with the cover body omitted.
- Fig. 5 is a plan view of the front part
- Fig. 5 is a separated side view of the front part of the aircraft with the upper frame turned upward
- Fig. 6 is a perspective view of the steering handle body as seen from the diagonal rear
- Fig. 7 Steering handle The perspective view of the body and upper frame as seen from diagonally forward
- Fig. 1 is a side view of a riding rice transplanter as a work vehicle
- Fig. 2 is a plan view of the riding rice transplanter
- Fig. 3 is a plan view of the front of the traveling machine
- Fig. 4 is a traveling machine with the cover body omitted.
- Fig. 5 is a plan view of the front part
- FIG. 8 is a perspective view of the upper frame as seen from diagonally rear
- Fig. 9 is the left side view of the front of the traveling aircraft
- Fig. 10 is the upper frame facing upward
- Fig. 11 is an exploded perspective view of the front of the traveling aircraft body
- Fig. 11 is a perspective view of the front of the traveling aircraft body
- Fig. 13 is an exploded perspective view of the front of the traveling aircraft body.
- Fig. 14 shows the shift pedal and brake pedal diagonally forward
- Figure 15 is a view illustrating the operation of the vehicle speed adjustment lever
- FIG. 16 is a view illustrating the operation of the shift pedal
- FIG. 17 is an explanatory diagram of the operation of the brake pedal.
- the traveling machine body 1 of the riding type rice transplanter in the embodiment includes an airframe frame 2, and the airframe frame 2 is arranged on the front and rear sides of the left and right sides thereof. Supported by left and right front wheels 3 and left and right rear wheels 4.
- An engine 5 as a power source is mounted on the front portion 1 of the traveling machine body.
- An air cleaner 31 is disposed on the upper surface of the engine 5 (see FIG. 5).
- a mission case 6 having a hydraulic continuously variable transmission 170 (see FIG. 5 and FIGS. 12 to 14) and the like is disposed in the lower rear portion of the engine 5.
- the transmission case 6 is for appropriately shifting the power from the engine 5 and transmitting it to the front and rear wheels 3 and 4 via a gear-type transmission mechanism (not shown).
- a front axle case 7 protrudes left and right from the left and right sides of the transmission case 6, and the front wheels 3 are attached to both ends of the front axle case 7 so as to be steerable.
- a rear axle case 9 is fixed to the cylindrical frame 8 protruding rearward from the mission case 6, and rear wheels 4 are attached to the left and right sides of the rear axle case 9. It is.
- the upper surface of the machine body frame 2 is covered with a plurality of covers, and is configured to be detachable for each cover body.
- the outer periphery of the engine 5 is surrounded by an operation panel body 10, a bonnet cover body 11, and a column cover body 12 as a front bonnet from above and from the front and back, and each is configured to be detachable (See Figure 5).
- the bonnet cover body corresponds to the front cover body described in the claims
- the column cover body corresponds to the rear cover body described in the claims.
- the outer periphery of the lower ends of the bonnet cover body 11 and the column cover body 12 in the upper surface front portion of the body frame 2 is covered with a front body cover body 13 having a substantially rectangular shape in plan view.
- the rear upper surface of the fuselage frame 2 is covered with a rear fuselage cover body 14 formed so that the rear end force of the front fuselage cover body 13 is also continuous.
- a tilt type steering handle body 15 for steering the traveling machine body 1 is erected on the upper surface of the mission case 6, a tilt type steering handle body 15 for steering the traveling machine body 1 is erected.
- the tip (upper end) side of the steering handle body 15 protrudes upward from the front bonnet, and a steering round handle 43 is attached to the tip.
- a driver seat 17 is provided via a seat frame 16 behind the steering handle body 15 in the upper surface of the rear machine body cover body 14.
- the steering angle (steering angle) of the left and right front wheels 3 changes according to the operation amount (turning amount). It is structured as follows.
- the speed change pedal 18 for adjusting the vehicle speed of the travel aircraft body 1 and the travel aircraft body 1 are The brake pedal 19 for performing the braking operation projects upward (see FIGS. 2 and 3).
- the shift pedal 18 and the brake pedal 19 in the embodiment are arranged on the right side in the traveling direction of the traveling machine body 1 with the steering handle body 15 interposed therebetween.
- spare seedling platforms 20 for placing a plurality of spare seedling mats.
- a main speed change lever 21 is provided on one side of the left and right sides of the operation panel body 10 with the steering handle body 15 interposed therebetween for forward, stop, reverse and change the vehicle speed of the traveling machine body 1. Yes.
- an accelerator lever 22 for adjusting the number of revolutions of the engine 5, a vehicle speed adjusting operation and an auto-cruise operation!
- a movable vehicle speed adjusting lever 23 and a shift lever 24 for raising and lowering a seedling planting device 25, which will be described later, and a power disconnecting operation are arranged (see FIGS. 3 and 4). Both these levers 21-2 4 corresponds to the operation lever means described in the claims
- a seedling planting device 25 for 6-row planting is connected to the rear end portion of the machine body frame 2 through a parallel link mechanism 26 having a vertical link force so as to be adjustable up and down.
- the seedling planting device 25 has a known structure.
- the seedling planting device 25 has three transmission cases 27 to which power is transmitted in the transmission case 6 and rotary seedling planting mechanisms 28 that are attached to the left and right sides of each of the transmission cases 27, and the upper end travels.
- a seedling stand 29 attached to the upper surface of the transmission case 27 in a forward tilted posture approaching to the airframe 1 and a float 30 for uniforming the surface is arranged on the lower surface of the transmission case 27.
- the steering handle body 15 includes a handle lower shaft 40 projecting upward from the upper surface of the transmission case 6, and a needle upper shaft connected to the upper end of the handle lower shaft 40 via a universal shaft joint 42. 4 and a steering round handle 43 attached to the upper end of the handle upper shaft 41.
- the outer periphery of the handle lower shaft 40 is surrounded by a lower column cylinder 44 as a support member fixed to the outer surface of the transmission case 6, and the handle lower shaft 40 rotates with respect to the lower column cylinder 44. It can only be pivotally supported!
- the handle upper shaft 41 together with the upper column tube 45 fitted on the outer periphery thereof, can be bent and rotated in the vertical direction (tilt rotation) around the tilt shaft 46 in the horizontal direction of the universal shaft joint 42. (See Fig. 5 and Fig. 10).
- a handle upper shaft 41 is rotatably supported on the upper column cylinder 45.
- posture adjusting means 47 is provided for adjusting the bending angle (tilt angle) of the upper column cylinder 45 and the noddle upper shaft 41 in a plurality of stages (see FIG. (See 6).
- the posture adjusting means 47 is attached to the upper end portion of the lower column cylinder 44 so as to extend rearward with respect to a cross-section upward U-shaped fixing bracket 53 projecting diagonally forward and upward.
- a pivotable tilt pivot lever 48 and a locking plate 49 provided on the lower side of the upper column cylinder 45 so as to confront the longitudinal middle portion of the tilt pivot lever 48 from below.
- the base end portion of the tilt rotation lever 48 is attached to the fixed bracket 53 so that it can be rotated up and down by a pivot shaft 50 that is laterally directed.
- a downward hook-like engagement hook 51 is fixed to the middle part of the tilt rotation lever 48 in the longitudinal direction.
- a plurality of locking grooves 52 are formed on the upper end surface of the locking plate 49 at appropriate intervals along the rotation direction about the tilt shaft 46.
- the tilt rotation lever 48 is always urged by a spring member (not shown) in a direction in which the engagement hook 51 is engaged with the engagement groove 52 of the engagement plate 49.
- the free end (tip) of the tilt rotation lever 48 protrudes outward (rearward) from the column cover body 12! /.
- the operation panel body 10 covering the upper side of the engine 5 has a substantially elliptical shape in a plan view, and is protruded from the midway portion of the upper column cylinder 45 toward the front of the traveling machine body. It is attached to an upper frame 60 (details will be described later) located above the gin 5.
- a display unit 10b, a key switch, and the like are arranged on the upper surface of the operation panel body 10.
- a control box 117 for controlling display of the display unit 10b is provided (see FIGS. 9 to 11).
- the column cover body 12 is formed in a substantially arc shape in plan view so as to surround the operation panel body 10 and the upper column cylinder 45 from the rear.
- the left and right front end edges 12a of the column cover body 12 are formed to be inclined obliquely downward and forward so as to exactly overlap the left and right rear end edges 1la of the bonnet cover body 11.
- the lower end edge 12b of the column cover body 12 is formed in a slanting rearward and upward inclined shape so as to exactly overlap the upper surface edge 13a of the front lower cover body 13.
- downward tongue pieces 82 are protruded in several places (see FIGS. 5 and 11), and each tongue piece 82 is formed on the upper edge 13a of the front body cover body 13. It is configured to fit upward into the formed fitting hole 83 (see Fig. 4).
- the upper end edge of the column cover body 12 is formed so as to closely contact the rear end portion and the left and right end portions of the lower end edge of the operation panel body 10. Then, by hooking the end flanges of a pair of left and right coil springs 84 attached to the plate plate 72 of the front frame 62, which will be described later, on the locking bracket 58 formed on the inner surface of the column cover body 12, the column cover body 12 The entire column cover body 12 is urged forward so that the upper end edge of the column is not rattled by being brought into close contact with the lower end edge of the operation panel body 10 (see FIG. 9).
- the rear part of the operation panel body 10 and the upper part of the column cover body 12 are notched grooves 10a and 12c for allowing the upper column cylinder 45 and the handle upper shaft 41 to rotate up and down (see FIG. 11). Is formed.
- both 1 Oa and 12c are combined to form a long slot in the top and bottom, and the upper column cylinder 45 and the needle upper shaft 41 are notched concave grooves 10a and 12c.
- the control panel body 10 is turned up and down so as to be in contact with and away from it.
- the bonnet cover body 11 is formed in a streamlined shape (elliptical shell shape) that tapers toward the tip (front end).
- the left and right rear edges 11a are formed in a slanting shape that is obliquely upward and rearward, and is directed toward the rear of the fuselage frame 2 as it goes upward.
- the left and right rear end edges 11a are formed with a plurality of inner tongues 79 projecting rearward (in the embodiment, two upper and lower parts, see FIGS. 5 and 11). These guide tongues 79 are configured to enter the inner surface side from the left and right front end edges 12a of the column cover body 12.
- the lower edge l ib of the bonnet cover body 11 has a slanted rearward and upwardly inclined shape so that it can be slidably contacted with the upper surface edge 13a of the front body cover body 13 that is inclined obliquely upward with a gentle gradient. Is formed.
- a downward-facing locking tongue piece 80 protrudes from the lower edge l ib toward the front (see FIG. 5 and FIG. 11).
- the front body cover body 13 is configured to be fitted with an upward force into a locking hole 81 (see FIG. 4) formed at the front end portion of the upper surface edge 13a.
- the upper frame 60 that supports the operation panel body 10 also with a downward force is constituted by a rotating frame 61 that is substantially E-shaped in plan view and a front frame 62 that is generally U-shaped in plan view.
- the front ends of the left and right arms 71 extending rearward in the front frame 62 are bolted to the front surface of the horizontal bar 63 in the rotating frame 61.
- the front and rear length of the front frame 62 is set to such a dimension that the front end portion of the front frame 62 projects forward from the front end of the operation panel body 10 and protrudes greatly from the operation panel body 10 in plan view.
- Side arms 64 extending parallel to each other in the same direction protrude from portions near the both ends of the horizontal bar 63 in the rotating frame 61.
- the projecting ends of the both side arms 64 are concentric with each other in the left-right direction.
- a cylindrical shaft portion 65 is provided as a lateral support shaft penetrating in a shape.
- a pair of left and right wing arms 67 are fixed to the bracket plate 66 fixed to the upper front surface of the lower column cylinder 44 by welding or the like so as to protrude left and right.
- a pivot boss 68 that is concentrically penetrated in the left-right direction is attached to the tip of 67.
- each side arm 64 in the rotating frame 61 is inserted and attached to the corresponding pivot boss portion 68 of the wing arm 67 so as to be rotatable from the left and right outer sides. Therefore, the rotating frame 61 and thus the upper frame 60 and the operation panel body 10 are configured to be able to open and close up and down around the cylindrical shaft portion 65 on the same axis extending in parallel with the tilt shaft 46.
- the upper frame 60 and the operation panel body 10, and the upper column cylinder 45 and the handle upper shaft 41 are configured to be independently rotatable.
- the upper frame 60 and the operation panel body 10 move closer to or away from the steering handle body 15 (the upper column cylinder 45 and the steering round handle 43) when the cylinder pivots up and down around the cylindrical shaft 65. Will do.
- the upper column tube 45 and the upper cylinder shaft 41 are inclined obliquely upward (at the time of steering operation)
- the upper column tube 45 and the The upward opening rotation of the upper frame 60 and the operation panel body 10 is restricted by the presence of the handle upper shaft 41.
- the cylindrical shaft portion 65 as the rotation center is on the rear end side of the upper frame 60, that is, on the side closer to the steering handle body 15, the upper frame 60 and the operation panel body 10 are provided.
- a space opened forward is formed between the operation panel body 10 and the upper surface of the engine 5 (see FIGS. 5 and 10).
- a horizontal shaft 93 protruding left and right laterally from the lower end portion of the main transmission lever 21 is rotatably inserted into the cylindrical shaft portion 65 of one side arm 64, and the other side arm is mounted.
- the horizontal shaft 114 of the relay rod 113 which is one component of the shift interlock mechanism 112 that interlocks the shift lever 24 with the lifting / lowering means and power disconnection means of the seedling planting device 25, is provided on the 64 cylindrical shaft portion 65. It is inserted in a pivotable manner (see Fig. 8).
- a center arm 69 protruding in the same direction as the left and right side arms 64 is attached to the middle part of the horizontal bar 63 in the rotating frame 61.
- the center arm 69 is detachably fitted to a fixing bracket 53 having an upward U-shaped cross section provided at the upper end portion of the lower column cylinder 44. That is, the center arm 69 is also supported by the fixing bracket 53 on the lower column cylinder 44 side in the downward direction.
- the linkage arm 70 located on the front end side of the front frame 62 is an auxiliary U-shaped auxiliary that is upright in front of the engine 5 in the body frame 2. It is detachably connected to the frame 54 with bolts and nuts. Therefore, in a state where the upper frame 60 is closed and rotated around the cylindrical shaft portion 65, the front and rear surfaces and the upper surface of the engine 5 are surrounded by the auxiliary frame 54, the upper frame 60, and the lower column cylinder 44.
- a fuse box 74 is arranged on the upper surface of the support stay 73. Of course, the upper part of the fuse box 74 is covered with the operation panel body 10.
- a horizontally long latch shaft 75 is also mounted so as to be rotatable around the horizontal axis line.
- a forward hook-like latch claw 76 is fixed to both ends projecting in the direction.
- a latch lever 77 that protrudes upward and intersects with the latch shaft 75 is provided in the midway portion of the latch shaft 75.
- the pair of left and right latch claws 76 rotate back and forth about the latch shaft 75, thereby engaging pins 56 (Fig. 8) protruding laterally from the bracket plate 55 provided on the inner surface of the bonnet force bar body 11. And (see Fig. 10).
- the latch claw 76 is moved in the forward rotation direction that can be engaged with the engagement pin 56 on the bonnet cover body 11 side by the elastic biasing force of the torsion spring 78 mounted between the latch claw 76 and the plate plate 72. Always energized.
- a lid cover 57 configured to be able to be opened and closed up and down around the rear end portion is provided at the front upper portion of the operation panel body 10, and the lid cover 57 is manually opened and rotated. Then, the latch lever 77 is configured to appear! RU
- each operation lever means in the embodiment is attached to the upper frame 60 so as to rotate integrally around the cylindrical shaft portion 65 together with the upper frame 60 and the operation panel body 10. ing.
- the main speed change lever 21 located on the left and right sides of the steering handle body 15 among the operation lever means includes a boss portion 90 penetrating in the front-rear direction at the lower end portion (base end portion) thereof.
- the boss portion 90 is disposed in a box-shaped bracket 91 that is opened up and down (see FIGS. 7 and 8).
- a pin shaft 92 extending in the front-rear direction passes through the boss portion 90 and the box bracket 91 of the main transmission lever 21.
- the main speed change lever 21 is configured to be rotatable left and right around the pin shaft 92. As shown in FIG.
- a horizontal shaft 93 protrudes laterally from one side of the box-shaped bracket 91, and the horizontal shaft 93 is a cylindrical shape of one side arm 64 in the rotating frame 61. Attached to the shaft portion 65 so as to be rotatable from the left and right outer sides. For this reason, the box-shaped bracket 91 and the main transmission lever 21 are configured to be able to rotate back and forth around the horizontal axis 93. Therefore, in the embodiment, the main transmission lever 21 is configured to be rotatable both in the front-rear direction and in the left-right direction.
- the horizontal axis 93 of the box-type bracket 91 is a gear-type transmission mechanism (see FIG. 5) to which the power of the hydrostatic continuously variable transmission mechanism in the transmission case 6 is transmitted via a gear-shifting interlocking mechanism 94 such as a link or a wire. (Not shown).
- a transmission guide plate 95 fixed to one end of the horizontal bar 63 in the rotating frame 61 is positioned, and the main transmission lever 21 is formed on the transmission guide plate 95.
- the guide panel 96 passes through the outer surface of the operation panel body 10. For this reason, the main transmission lever 21 can be rotated back and forth and right and left along the guide groove 96 of the transmission guide plate 95. The rotation range of the main speed change lever 21 is restricted by the presence of the guide groove 96.
- the accelerator lever 22 of the three levers 22 to 24 located on the left and right sides of the steering handle body 15 is fixed to its lower end (base end).
- the moving plate 97 pivots back and forth about a pin shaft 99 that is transverse to the upward bracket 98 (see FIGS. 6 and 8) secured to the cylindrical shaft 65 of the other side arm 64 in the pivoting frame 61. Installed as possible.
- the rotation plate 97 of the accelerator lever 22 is interlocked and connected to a control lever (not shown) for setting the number of revolutions provided in the engine 5 via an accelerator interlocking mechanism 100 such as a wire.
- the engine 5 is configured such that the rotational speed of the engine 5 shifts to a low rotational force and a high rotational speed as the accelerator lever 22 is tilted backward from the front side to the front side (rear side) of the operator. ing.
- a lever guide plate 102 is attached to the other end of the horizontal bar 63 in the rotating frame 61 via a shift bracket 101 protruding upward from the horizontal bar 63.
- the accelerator lever 22 is a lever guide.
- the accelerator guide groove 103 (see FIGS. 7 and 8) formed in the plate 102 passes through and protrudes from the outer surface of the operation panel body 10. For this reason, The cell lever 22 can be rotated in the front-rear direction along the accelerator guide groove 103 of the lever guide plate 102. Further, the rotation range of the accelerator lever 22 is restricted by the presence of the accelerator guide groove 103.
- the shift lever 24 has a boss portion 108 penetrating substantially vertically at a lower end portion (base end portion) thereof, and the boss portion 108 is disposed in a receiving bracket 109 having a U-shaped cross section. .
- An almost vertical pin shaft 110 passes through the boss portion 108 of the shift lever 24 and the receiving bracket 109 (see FIGS. 7 and 8), and the shift lever 24 is configured to be turnable around the pin shaft 110. Has been.
- the receiving bracket 109 is rotated around the boss shaft 111 by a boss shaft 111 (see FIGS. 6, 8, and 9) that protrudes inwardly from side to side in the horizontal bar 63. It is pivotally supported. Therefore, like the main transmission lever 21, the shift lever 24 is configured to be able to rotate back and forth and right and left.
- the receiving bracket 109 is interlocked and connected to a lifting means and a power disconnecting means (not shown) of the seedling planting device 25 via a shift interlocking mechanism 112 such as a link or a wire.
- the shift lever 24 passes through the shift guide groove 115 (see FIGS. 4, 7, and 8) formed in the lever guide plate 102 and passes through the outer surface of the operation panel body 10. Protruding. Therefore, the shift lever 24 can be rotated back and forth and right and left along the shift guide groove 115 of the lever guide plate 102. Further, due to the presence of the shift guide groove 115, the rotation range of the shift lever 24 is also restricted.
- the vehicle speed adjusting lever 23 is used to increase or decrease the speed change output of the hydraulic continuously variable transmission 170, and the speed change output of the hydraulic continuously variable transmission 170 corresponds to the pedal position (stepping position) of the speed change pedal 18.
- Two types of operations can be executed: the operation that holds the value to be set. That is, the vehicle speed adjustment lever 23 is configured to be capable of executing two types of operations, a vehicle speed adjustment operation of the traveling machine body 1 similar to the shift pedal 18 and an auto-cruise operation that causes the traveling machine body 1 to travel at a constant speed.
- the vehicle speed adjusting lever 23 of the embodiment is disposed on the same side as the speed change pedal 18 (right side in the traveling direction of the traveling machine body 1) on both the left and right sides of the steering handle body 15 in plan view.
- the vehicle speed adjusting lever 23 of the embodiment includes a boss 104 that penetrates in the left-right direction at the lower end (base end), and the boss 104 is connected to the other side arm of the rotating frame 61.
- a U-shaped support shaft 105 (see FIGS. 6 and 8) fixed to the top surface of the shaft 64 is rotatably fitted. For this reason, the vehicle speed adjusting lever 23 is configured to be able to turn back and forth around the pin shaft portion of the U-shaped support shaft 105 in the same manner as the accelerator lever 22.
- a position holding member 120 for holding the vehicle speed adjusting lever 23 at an arbitrary operation position is provided at the boss portion 104 of the vehicle speed adjusting lever 23 (see FIG. 7).
- a friction plate 121 (see FIGS. 12 and 15 to 17) is fixed to the base side of the pin shaft of the U-shaped support shaft 105, while the boss portion of the vehicle speed adjustment lever 23 on the pin shaft.
- a disc spring washer 122 is fitted on the opposite side (front end side) of the friction plate 121 with the 104 interposed therebetween (see FIGS. 12 and 15 to 17). The disc spring washer 122 is configured so that it cannot be removed from the pin shaft cover by a washer that is further fixed to the distal end side.
- the boss 104 of the vehicle speed adjusting lever 23 is pressed and brought into contact (friction contact) with the friction plate 121, so that the vehicle speed adjusting lever 23 is moved from the most forward tilt position to the last tilt position. It is configured so that it can be held in any operating position.
- the L-shaped arm 106 provided integrally with the boss 104 of the vehicle speed adjusting lever 23 is linked to the speed change cam 137 of the hydraulic continuously variable transmission 170 via the speed change wire 146 as a rope member. In addition to being connected, it is also linked to a constant speed release cam 155 associated with the brake pedal 19 via the brake rod 160 (see FIGS. 12 and 13).
- the L-shaped arm 106 faces upward around the pin shaft portion of the U-shaped support shaft 105. It is configured to rotate and pull up (pull) the speed change wire 146 and the brake rod 160 (see FIGS. 15 and 17), and the vehicle speed of the traveling machine body 1 increases as the vehicle is tilted backward. Is set.
- the direction in which the force is applied (the higher the speed is, the higher the speed is) is the same as the direction of the operation of the accelerator lever 22 (the higher the speed is, the higher the speed is, the more it is tilted backward).
- the vehicle speed adjusting lever 23 penetrates the cruise guide groove 107 formed in the lever guide plate 102 and protrudes from the outer surface of the operation panel body 10. . Therefore, the vehicle speed adjusting lever 23 can also be rotated in the front-rear direction along the cruise guide groove 107 of the lever guide plate 102. The rotation range of the vehicle speed adjusting lever 23 is restricted by the presence of the cruise guide groove 107.
- the base end portions of the operation lever means 21 to 24 in the embodiment are all rotated integrally with the rotary frame 61 constituting the upper frame 60 so that these constituent forces are also divided. It is attached to the rotating frame 61! /.
- the upper column cylinder 45 and the upper needle shaft 41, the upper frame 60, and the operation panel body 10 are configured so as to be able to rotate up and down independently, so that the bonnet cover body 11 And the column cover body 12 are removed, and the upper column cylinder 45 and the handle upper shaft 41 are turned downward around the tilt axis 46 and turned, and then the upper frame 60 and the operation panel body 10 are rotated around the cylindrical shaft section 65.
- the upper frame 60 and the operation panel body 10 are separated from the upper surface of the engine 5, and a hand is inserted between the upper frame 60 and the operation panel body 10 and the upper surface of the engine 5. Sufficient space will be opened.
- the presence of the upper frame 60 and the operation panel body 10 does not get in the way when performing maintenance on the upper part of the engine 5 and the devices (for example, the air cleaner 31) in the relevant part.
- the devices for example, the air cleaner 31
- a space sufficient to insert a hand is opened between the upper frame 60 and the operation panel body 10 and the upper surface of the engine 5, so that the back side of the display unit 10b of the operation panel body 10 is opened.
- the harness can be easily connected to the control box 117 in this area, which can contribute to improving the assembly workability of the riding rice transplanter.
- the cylindrical shaft portion 65 that is the rotation center of the upper frame 60 is on the rear end side of the upper frame 60, that is, on the side closer to the steering handle body 15, the upper frame 60 and the operation panel.
- the space formed between the operation panel body 10 and the upper surface of the engine 5 is opened forward. Then, the operator can perform maintenance on the upper part of the engine 5 and the devices at the relevant part from the front side of the traveling machine body 1. For this reason, during the maintenance, the presence of the steering handle body 15 does not get in the way and work efficiency can be improved.
- the lower end portions (base end portions) of the operation lever means 21 to 24 whose upper surface forces of the operation panel body 10 protrude outward also rotate integrally with the rotation frame 61 constituting the upper frame 60. Since the upper frame 60 and the operation panel body 10 are vertically opened and closed and rotated, the operation lever means 21 to 24 also rotate the cylindrical shaft portion 65. It will rotate with the moving center. For this reason, when the upper frame 60 and the operation panel body 10 are rotated up and down, the operation lever means 21 to 24 need not be removed, and the presence thereof does not get in the way. Therefore, this point that the upper frame 60 and the operation panel body 10 can be easily rotated up and down can also contribute to improving the efficiency of the maintenance work for the upper portion of the engine 5 and the devices at the relevant location.
- the linkage arm 70 located on the front end side of the front frame 62 is detachably connected to the auxiliary frame 54 standing in front of the engine 5 of the body frame 2 with bolts and nuts. Therefore, the front frame 62 (upper frame 60) and the auxiliary frame 54 can be easily attached and detached.
- the front-rear length of the front frame 62 is set such that the front end portion of the front frame 62 projects forward from the front end of the operation panel body 10, and in the state where the bonnet cover body 11 is removed. Since the front end portion of the front frame 62 (part of the linkage arm 70) is exposed in front of the operation panel body 10, the operator grasps the exposed portion (part of the linkage arm 70) and holds the upper frame 60 and the operation panel body. 10 up / down opening / closing rotation operations can be performed.
- the linkage arm 70 of the front frame 62 also has a function as a handle for the vertical opening / closing rotation operation, so that the upper frame 60 and the operation panel body 10 can be opened / closed even without a dedicated handle part. This contributes to a reduction in the number of parts that can be easily rotated.
- the transmission pedal 18 includes a tread plate 130 that an operator steps on with a foot, and a link arm 131 connected to the back surface of the tread plate 130, and a boss portion 132 fixed to a lower end portion of the link arm 131 includes a fuselage.
- a horizontal shift pedal shaft 133 that is pivotally supported by the frame 2 is fitted so as to rotate integrally.
- a relay arm 134 is attached to a portion of the transmission pedal shaft 133 that protrudes from the boss 132 of the link arm 131.
- the relay arm 134 extends in the vertical direction across the speed change pedal shaft 133, and one end of the speed change link 135 is pivotally attached to the lower end of the relay arm 134 via a horizontal shaft pin 136. .
- the other end of the transmission link 135 is rotated via a horizontal shaft pin 138 to a transmission cam 137 having a substantially U shape in side view, which is located on one side (right side in the embodiment) of the hydraulic continuously variable transmission 170. It is pivotally attached.
- One protruding end portion of the transmission cam 137 is fixed to a trough-on shaft 139 that constitutes an adjustment portion that protrudes laterally from one side surface (right side surface in the embodiment) of the hydraulic continuously variable transmission 170. Yes.
- the trough-on shaft 139 is for adjusting the inclination angle of the rotary swash plate (not shown) of the hydraulic pump in the hydraulic continuously variable transmission 170.
- the tru-on shaft 139 and the speed change cam 137 correspond to the adjusting portion of the hydraulic continuously variable transmission 170.
- the hydraulic continuously variable transmission 170 includes a variable displacement hydraulic pump (not shown) and a fixed displacement hydraulic motor (not shown).
- a variable displacement hydraulic pump (not shown)
- a fixed displacement hydraulic motor (not shown).
- the relay arm 134 rotates about the speed change pedal shaft 133, and the speed change link 135 and the speed change cam 137 linked to the relay arm 134 are interlocked.
- the tro-on shaft 139 By turning the tro-on shaft 139 through the angle, the inclination angle of the rotary swash plate of the hydraulic pump is changed and adjusted.
- the pivoting pin 140 projecting sideways on the upper end of the relay arm 134 automatically shifts the shift pedal 18 to the initial position (vehicle speed) by releasing the foot of the shift pedal 18 and one end of the oil damper 141.
- a return tension spring 142 as a return urging means for returning to the zero position is pivotally attached to one end of the return tension spring 142.
- the oil damper 141 and the return tension spring 142 are arranged to face each other in the front-rear direction.
- the other end of the oil damper 141 is inserted and attached to an upward pin 144 on the body frame 2 via a U-shaped metal fitting 143.
- the other end of the return tension spring 142 is fixed by being hooked on a bracket (not shown) protruding inward from the body frame 2.
- the difference between the elastic restoring force of the return tension spring 142 and the resistance force of the oil damper 141 (hereinafter referred to as the return force of the shift pedal 18 to the initial position) is the boss portion 104 of the vehicle speed adjusting lever 23 by the disc spring washer 122.
- the frictional holding force between the friction plate 121 and the friction plate 121 cannot be released, and is set to a certain size.
- the speed change pedal 18 and the vehicle speed adjustment lever 23 are the same as the speed change pedal 18 when the speed change lever 18 operates in the depressing direction in conjunction with the speed increase / decrease operation (forward / backward tilt operation). Therefore, the vehicle speed adjustment lever 23 is not linked when the speed is increased or decreased (stepping operation).
- a loose fitting hole 145 having an oval shape in a side view is formed at the other protruding end of the speed change cam 137, and the L-shaped arm 10 of the vehicle speed adjusting lever 23 is formed in the loose fitting hole 145.
- the front end of the speed change wire 146 connected to 6 is loosely fitted via a pivot pin 147.
- the pivot pin 147 has a play gap in the rotational direction of the transmission cam 137 around the trough-on shaft 139.
- the relationship between the outer diameter of the hole and the hole diameter of the loose fitting hole 145 is set.
- the shifting cam 137 increases in the speed increasing direction (clockwise in FIG. 16) as the operator depresses the shift pedal 18 (see the dashed line in FIG. 16). It is set to rotate upward from below to push up and loosen the speed change wire 146.
- the pivot pin 147 moves in the loose fitting hole 145 but remains idle without being caught in the edge of the loose fitting hole 145. It is configured as follows. For this reason, the vehicle speed of the traveling machine body 1 increases. The vehicle speed adjusting lever 23 is held in the forward-most tilted position so that the upward turning force of the speed change cam 137 is not transmitted to the vehicle speed adjusting lever 23 via the speed change wire 146. (See Figure 16).
- the shifting wire 146 will be loose. However, when the vehicle speed adjusting lever 23 reaches the operation position, the pivot pin 147 on the distal end side of the speed change wire 146 shifts to a state where the tension force can be applied. The shifting wire 146 is hooked by being caught in the loose fitting hole 145 of the cam 137, and the operating resistance (operating feeling) of the vehicle speed adjusting lever 23 becomes heavy (see, for example, the solid line state in FIG. 15).
- the vehicle speed adjusting lever 23 is held by the holding force of the position holding member 120, and the speed change pedal 18 moves back by the return force to the initial position.
- the rotational posture of the speed change cam 137 and the inclination angle force of the rotary swash plate attached to the tro-on shaft 139 are maintained in a state corresponding to the positions of the speed change pedal 18 and the vehicle speed adjustment lever 23, It runs at a constant speed.
- the relay arm 134, the speed change link 135, and the speed change cam 137 correspond to a hook-shaped link member in which the adjusting portion for adjusting the speed change output of the hydraulic continuously variable transmission 170 and the speed change pedal 18 are connected.
- the hook-shaped link member, the speed change wire 146, the return tension spring 142 of the speed change pedal 18, and the position holding member 120 correspond to a linkage mechanism for associating the vehicle speed adjusting lever 23 and the speed change pedal 18. To do.
- the brake pedal 19 is arranged in parallel with the speed change pedal 18 in the left-right direction.
- the brake pedal shaft 150 that is the pivot shaft of the brake pedal 19 and the shift pedal shaft 133 of the shift pedal 18 are arranged on the same axis, but are configured separately.
- the brake pedal shaft 150 according to the embodiment is pivotally supported on the upper surface of the transmission case 6 so as to be rotatable about its axis in a laterally extending posture.
- the arm boss 152 (see FIGS. 14 and 17) fixed to the base end of the pedal arm 151 in the brake pedal 19 is covered with one end of the brake pedal shaft 150 so as to rotate integrally therewith.
- the brake pedal shaft 150 and the brake pedal shaft 150 are configured to rotate around the axis line when the operator depresses the brake pedal 19.
- the output in the mission case 6 is related to the brake pedal shaft 150.
- the main clutch provided on the shaft is turned off and power transmission to the front and rear wheels 3 and 4 is cut off.
- the front wheel brake mechanism provided in association with the brake pedal shaft 150 acts on the drive shaft 171 (see FIG. 1) of the front wheel 3 to stop the rotation of the drive shaft 81 and thus the front wheel 3. It is also configured to brake the traveling body 1.
- the bracket 153 attached to the arm boss 152 of the pedal arm 151 has a return spring (not shown) for automatically returning the brake pedal 19 to the initial position when the brake pedal 19 is released. Are connected at one end. The other end of the return spring is connected to a clutch operation plate (not shown) located on one side of the transmission case 6.
- the pivoting pin 154 penetrating the lower end of the pedal arm 151 has one side of the hydraulic continuously variable transmission 170 (right side in the embodiment).
- One end portion of a rectangular link rod 156 for interlocking the constant speed release cam 155 with a substantially triangular plate-like shape when viewed from the side and the brake pedal 19 is pivotally mounted.
- the other end of the rectangular link rod 156 is pivotally connected to the upper corner portion 155a of the constant speed release cam 155 via a horizontal shaft pin 157.
- the rear corner portion 155b of the constant speed release cam 155 is pivotally supported by a bracket 158 (see Fig. 13) fixed to the lower surface of the fuselage frame 2 via a lateral support shaft 159. . Therefore, the constant speed release cam 155 rotates up and down around the lateral support shaft 159 on the rear corner 155b side. Is configured to do.
- the front corner portion 155c of the constant speed release cam 155 is connected to the tip end portion of the brake rod 160 connected to the L-shaped arm 106 of the vehicle speed adjusting lever 23 via a pivot pin 161 so as to be rotatable. Yes.
- the brake rod 160, the constant speed release cam 155, and the square link rod 156 are for forcibly releasing the auto-cruise operation by the vehicle speed adjusting lever 23.
- a riding rice transplanter as an example of a work vehicle uses a hydraulic continuously variable transmission to appropriately change the power of the engine power by depressing a shift pedal by an operator sitting on the seat of the control section.
- V is configured to increase or decrease the vehicle speed of the traveling machine body (see, for example, Japanese Patent Application Laid-Open No. 2003-220849).
- V shifting, automatic cruise operation
- the vehicle speed of the traveling machine 1 can be adjusted not only by the speed change pedal 18 but also by the vehicle speed adjustment lever 23. Will increase. For this reason, it is possible to smoothly handle various situations during work (for example, when an operator stands up and operates), and operability is improved.
- the vehicle speed adjusting lever 23 and the speed change pedal 18 are linked with the speed change pedal 18 when the speed increase / decrease operation is performed with the speed control lever 23, while the speed change pedal 18
- the vehicle speed adjustment lever 23 is linked via a linkage mechanism so that the vehicle speed adjustment lever 23 is operated by the shift pedal 18 during normal work on a riding rice transplanter. Does not operate automatically. For this reason, an operator who does not automatically move the vehicle speed adjusting lever 23 in front of his / her eyes each time the operation amount of the speed change pedal 18 is changed, does not bother to increase / decrease the vehicle speed of the traveling machine body 1. .
- the shifting pedal 18 and the vehicle speed adjusting lever 23 of the embodiment are also manually operated to the operation position corresponding to the pedal position of the shifting pedal 18 when the shifting pedal 18 is operated to increase or decrease the speed. Since it is related via the linkage mechanism so that the speed change pedal 18 is held at the pedal position when operated, by manual operation of the vehicle speed adjustment lever 23, The shift pedal 18 can be held at an arbitrary pedal position. In other words, it is possible to change (adjust) the holding vehicle speed of the traveling vehicle body 1 during the auto-cruise operation arbitrarily (steplessly). For this reason, the traveling vehicle 1 can be operated while maintaining an arbitrary vehicle speed according to the work situation, which is extremely easy for the operator to handle.
- the linkage mechanism of the embodiment includes a relay arm 134, a transmission link 135, a hook-shaped link member that also has a transmission cam 137 force, a transmission wire 146, a return tension spring 142 of the transmission pedal 18, and a position holding member 120.
- the tip of the speed change wire 146 is loosely fitted via the pivot pin 147 into the loose fit hole 145 of the speed change cam 137 that constitutes the adjustment section. Due to the presence of the wire 146, it is possible to reliably prevent the vehicle speed adjusting lever 23 from automatically moving in front of the user whenever the amount of stepping operation of the speed change pedal 18 changes.
- the shift pedal 18 can be returned to the initial position by the hook-shaped link member and the return tension spring 142, so that it is highly effective in improving safety.
- both the vehicle speed adjusting lever 23 and the speed change pedal 18 are arranged on the same side of the left and right sides of the steering handle body 15 in plan view (in the embodiment, on the right side in the traveling direction of the traveling machine body 1). Therefore, the visibility of the operator's power seated in the driver's seat 17 is good, and it is possible to contribute to improving the operability of the vehicle speed adjusting lever 23 and the shift pedal 18.
- the present invention is not limited to the above-described embodiment, and can be embodied in various forms.
- the invention of the present application is not limited to a riding type rice transplanter, but can be applied to special working vehicles such as agricultural machines such as tractors and combines, and wheel loaders.
- the horizontal support shaft which is the rotation center of the operation panel body, is not limited to being parallel to the tilt axis of the steering handle body, and may be positioned coaxially with the tilt axis, or the tilt shaft itself. It can be configured to function as a horizontal axis.
- the vehicle speed adjusting lever capable of executing two types of operations is not limited to the vicinity of the steering handle body, but may be provided on the steering handle body itself (for example, a steering post).
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007800050901A CN101384467B (zh) | 2006-05-22 | 2007-05-22 | 作业车辆 |
KR1020087017333A KR101355044B1 (ko) | 2006-05-22 | 2007-05-22 | 작업 차량 |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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JP2006142004A JP4562689B2 (ja) | 2006-05-22 | 2006-05-22 | 作業車両 |
JP2006-142004 | 2006-05-22 | ||
JP2006-143409 | 2006-05-23 | ||
JP2006143409A JP2007313953A (ja) | 2006-05-23 | 2006-05-23 | 作業車両 |
Publications (1)
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WO2007136058A1 true WO2007136058A1 (ja) | 2007-11-29 |
Family
ID=38723371
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2007/060432 WO2007136058A1 (ja) | 2006-05-22 | 2007-05-22 | 作業車両 |
Country Status (3)
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KR (1) | KR101355044B1 (ja) |
CN (1) | CN102598932B (ja) |
WO (1) | WO2007136058A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN109197120A (zh) * | 2017-06-29 | 2019-01-15 | 株式会社久保田 | 联合收割机 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5847050B2 (ja) * | 2012-09-27 | 2016-01-20 | 株式会社クボタ | 水田作業機 |
Citations (5)
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JPS6393269U (ja) * | 1986-12-09 | 1988-06-16 | ||
JPH02136723U (ja) * | 1989-04-19 | 1990-11-14 | ||
JPH08119146A (ja) * | 1994-10-24 | 1996-05-14 | Kubota Corp | 作業車 |
JPH10210816A (ja) * | 1997-01-31 | 1998-08-11 | Kubota Corp | 乗用型作業機のエンジンボンネット取付け構造 |
JPH11313516A (ja) * | 1999-03-24 | 1999-11-16 | Kubota Corp | 乗用作業機 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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CN1294798C (zh) * | 1998-12-11 | 2007-01-17 | 洋马农机株式会社 | 乘式水稻插秧机 |
KR100344896B1 (ko) * | 1999-03-25 | 2002-07-19 | 가부시끼 가이샤 구보다 | 수전작업기 |
JP3506967B2 (ja) | 1999-09-16 | 2004-03-15 | 株式会社クボタ | 作業車の走行変速構造 |
JP2002254948A (ja) | 2001-02-28 | 2002-09-11 | Mitsubishi Agricult Mach Co Ltd | 作業車両における変速レバーの配置構造 |
KR100448944B1 (ko) * | 2001-08-10 | 2004-09-16 | 가부시끼 가이샤 구보다 | 수전작업기 |
JP4067310B2 (ja) * | 2002-01-17 | 2008-03-26 | ヤンマー農機株式会社 | 田植機 |
-
2007
- 2007-05-22 WO PCT/JP2007/060432 patent/WO2007136058A1/ja active Application Filing
- 2007-05-22 KR KR1020087017333A patent/KR101355044B1/ko active IP Right Grant
- 2007-05-22 CN CN201210086695.0A patent/CN102598932B/zh not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS6393269U (ja) * | 1986-12-09 | 1988-06-16 | ||
JPH02136723U (ja) * | 1989-04-19 | 1990-11-14 | ||
JPH08119146A (ja) * | 1994-10-24 | 1996-05-14 | Kubota Corp | 作業車 |
JPH10210816A (ja) * | 1997-01-31 | 1998-08-11 | Kubota Corp | 乗用型作業機のエンジンボンネット取付け構造 |
JPH11313516A (ja) * | 1999-03-24 | 1999-11-16 | Kubota Corp | 乗用作業機 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109197120A (zh) * | 2017-06-29 | 2019-01-15 | 株式会社久保田 | 联合收割机 |
Also Published As
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CN102598932B (zh) | 2015-05-20 |
KR101355044B1 (ko) | 2014-01-24 |
CN102598932A (zh) | 2012-07-25 |
KR20090010156A (ko) | 2009-01-29 |
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