WO2006027940A1 - 走行操作装置及び作業車両 - Google Patents
走行操作装置及び作業車両 Download PDFInfo
- Publication number
- WO2006027940A1 WO2006027940A1 PCT/JP2005/015003 JP2005015003W WO2006027940A1 WO 2006027940 A1 WO2006027940 A1 WO 2006027940A1 JP 2005015003 W JP2005015003 W JP 2005015003W WO 2006027940 A1 WO2006027940 A1 WO 2006027940A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pedal
- brake
- shift
- lock
- shaft
- Prior art date
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Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/30—Controlling members actuated by foot
- G05G1/36—Mounting units comprising an assembly of two or more pedals, e.g. for facilitating mounting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K20/00—Arrangement or mounting of change-speed gearing control devices in vehicles
- B60K20/02—Arrangement or mounting of change-speed gearing control devices in vehicles of initiating means
- B60K20/04—Arrangement or mounting of change-speed gearing control devices in vehicles of initiating means floor mounted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/26—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic
- B60Q1/34—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction
- B60Q1/38—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic for indicating change of drive direction using immovably-mounted light sources, e.g. fixed flashing lamps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H59/04—Ratio selector apparatus
- F16H59/06—Ratio selector apparatus the ratio being infinitely variable
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/30—Controlling members actuated by foot
- G05G1/48—Non-slip pedal treads; Pedal extensions or attachments characterised by mechanical features only
- G05G1/487—Pedal extensions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/20—Off-Road Vehicles
- B60Y2200/22—Agricultural vehicles
- B60Y2200/221—Tractors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/02—Selector apparatus
- F16H2059/0234—Selectors for gearings using foot control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/50—Inputs being a function of the status of the machine, e.g. position of doors or safety belts
- F16H59/54—Inputs being a function of the status of the machine, e.g. position of doors or safety belts dependent on signals from the brakes, e.g. parking brakes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20012—Multiple controlled elements
- Y10T74/20189—Foot operated
Definitions
- the present invention relates to a continuously variable transmission shift operating mechanism biased to the neutral side, a shift lock state in which the continuously variable transmission shift operating mechanism is artificially held at an arbitrary shift position, and the shift opening Shifting a shift operation mechanism equipped with a shift lock mechanism that can be unlocked to release the brake state, a brake operation mechanism that operates the travel brake device, and a continuously variable transmission for traveling provided on the work vehicle
- the present invention relates to a travel operation device having a forward shift pedal and a reverse shift pedal to be operated, and a work vehicle having an exposed driver's seat.
- a continuously variable transmission shift operation mechanism biased to the neutral side a shift lock state in which the continuously variable transmission shift operation mechanism is artificially held at an arbitrary shift position, and a lock release that releases the shift lock state
- a travel operation device having a shift lock mechanism that can take a state and a brake operation mechanism that operates the travel brake device, operation of an operation mechanism provided separately from the brake operation mechanism (e.g., left and right in the brake operation mechanism)
- the shift lock mechanism is configured to shift to the shift lock state force lock release state by a master brake pedal depression operation of a master brake operation mechanism having a master brake pedal for simultaneously operating a pair of brake pedals.
- the traveling operation device becomes a conventional power announcement! / (For example, see Japanese Patent Laid-Open No. 10-247119).
- a travel operation device including a forward shift pedal for shifting a travel continuously variable transmission provided in a work vehicle and a reverse shift pedal, for example, a forward shift pedal and a reverse shift pedal Is one of the left and right step bases in the work vehicle.
- a forward shift pedal and a reverse shift pedal Is one of the left and right step bases in the work vehicle.
- a work vehicle having a driver's seat exposed (a so-called cabin-less work vehicle) or a work vehicle having a cabin covering the periphery of the driver's seat (a so-called cabin-specific work vehicle).
- a work vehicle may be provided with a vehicle width lamp that indicates the width of the vehicle by light from the light emitting unit and a direction indicator lamp that indicates the left and right movement direction of the vehicle by light from the light emitting unit.
- the light is emitted toward the front, the light can easily enter the driver's eyes.
- the driver feels dazzling, and the driver's rear view (for example, the view when the driver faces the rear and steers the work vehicle) tends to decrease. Disclosure of the invention
- the present invention has been made in view of the above-described prior art, and includes a continuously variable transmission shift operation mechanism biased toward the neutral side and a continuously variable transmission shift operation mechanism.
- a travel operation device comprising: a speed change lock mechanism that can take a speed change lock state that is held by the vehicle and a lock release state that releases the speed change lock state; and a brake operation mechanism that operates the travel brake device, wherein the brake operation mechanism Even if there is no separate operation mechanism, It is a first object to provide a travel operation device that can release the locked state by operating the brake operating mechanism while the shift mechanism is in the shift lock state.
- the present invention further includes a forward shift pedal and a reverse shift pedal for shifting the traveling continuously variable transmission provided in the work vehicle, wherein the forward shift pedal and the reverse shift pedal are provided.
- a traveling operation device arranged on one of the left and right step bases in a work vehicle, which can take a relatively large space for placing a foot on the one side, and is excellent in getting on and off. Even when an operation member such as an operation lever is provided, a second problem is to provide a travel operation device with good operability.
- the present invention is a work vehicle with an exposed driver's seat, and the third person's visibility and driving with respect to the work vehicle when the third person looks away from the front or side of the work vehicle.
- the present invention provides a continuously variable transmission shift operation mechanism biased to the neutral side and the continuously variable transmission shift operation mechanism artificially at any shift position.
- a shift lock mechanism that can take a shift lock state that is held in the lock and a lock release state that releases the shift lock state, and a brake operation mechanism that operates the traveling brake device.
- the brake operation mechanism When the brake operation mechanism is operated, the shift lock A first traveling operation device is provided, characterized in that the mechanism is configured to shift to a shift lock state force unlock state.
- HS ⁇ Hydro Static Transmission
- HMT Hydro Mechanical Transmiss ion
- belt transmission examples thereof include HS ⁇ (Hydro Static Transmission, HMT (Hydro Mechanical Transmiss ion), a belt transmission, and the like. Can be mentioned.
- the shift lock mechanism when the brake operation mechanism is operated, the shift lock mechanism is configured to shift to the shift lock state force lock release state. Even if there is no operation mechanism different from the operation mechanism, the locked state can be released by operating the brake operation mechanism while the shift lock mechanism is in the shift lock state.
- the brake operation mechanism is operated. Then, the shift lock mechanism is configured to shift from the shift lock state to the unlocked state. When the shift lock mechanism or the continuously variable transmission shift operation mechanism is further operated, the shift shift mechanism is changed.
- the locking mechanism may be configured to shift from the shift locked state to the unlocked state.
- Specific examples of the first travel operation device according to the present invention include the following. Good fall,
- the continuously variable transmission speed change operation mechanism includes a speed change pedal shaft that is rotatable about an axis and a forward speed change pedal that is not rotatable relative to the pedal shaft.
- a forward shift pedal that rotates around and a latch that swings around an axis substantially parallel to the pedal shaft (including a mode that swings around the pedal shaft) in response to rotation around the axis of the pedal shaft.
- a ratchet body having a plurality of teeth, and a neutral urging mechanism that urges the pedal shaft to a neutral side, wherein the shift lock mechanism includes the plurality of the ratchet bodies.
- a lock member having a lock claw portion that can selectively engage with a tooth portion, wherein the lock claw portion engages with the tooth portion, and a release that separates the lock claw portion from the tooth portion.
- the position of the pen A lock member that is swingable about a first pivot shaft substantially parallel to the dull shaft, a lock operation member that can be manually operated to position the lock member in the lock position or the release position, and the lock member.
- a manually operable brake operating member that is selectively positioned at the brake operating position or the brake releasing position, and a brake that urges the brake operating shaft toward the brake releasing position.
- a rake release urging member, and the brake operation shaft abuts the lock member when the brake operation shaft moves from the brake release position to the brake operation position. In this configuration, an engagement portion for shifting to the release position is provided.
- the continuously variable transmission speed change operation mechanism includes The pedal shaft is always urged toward the neutral side by the neutral urging mechanism.
- the pedal shaft rotates about the axis toward the forward side, and accordingly, the ratchet body rotates about the pedal shaft or an axis substantially parallel to the pedal shaft according to the rotation about the axis of the pedal shaft. Swing around to the forward side.
- the pedal shaft is biased from the forward side to the neutral side, and when the forward operation of the forward shift pedal is released, the pedal shaft attempts to return to the neutral side.
- the shift lock mechanism holds the shift lock state at an arbitrary shift position.
- the lock member in the shift lock mechanism, the lock member is always held at the release position by the lock release biasing member. In this manner, the lock member is positioned at the lock position based on the manual operation of the lock operation member to the lock position while the lock member is held at the release position.
- the rocking member swings around the first pivot shaft and is positioned at the lock position, the lock member is urged toward the release position by the lock release urging member!
- the lock claw portion in the engagement with the tooth portion in the ratchet body.
- the continuously variable transmission speed change operation mechanism is held at an arbitrary speed change position, and the speed change lock state is established.
- the brake operation shaft is always urged toward the brake release position by the brake release urging member over the brake operation mechanism.
- the brake operation member is manually operated.
- the brake operating shaft rotates about the axis toward the brake operating position, and when the shift lock mechanism is in the shift lock state, the brake operating shaft moves from the brake release position to the brake operating position.
- the engaging portion comes into contact with the lock member, and the lock member moves to the lock position force and the release position. As a result, the shift lock state of the shift lock mechanism is released.
- the shift lock mechanism is configured to shift from the shift lock state to the unlock state when the brake operation mechanism is operated, the brake operating machine Even if there is no separate operating mechanism, the locked state can be released by operating the brake operating mechanism in the shift lock state of the shift lock mechanism.
- the shift operation mechanism in addition to operating the brake operation mechanism, as described above, when the shift lock mechanism or the continuously variable transmission shift operation mechanism is operated, the shift operation mechanism is operated.
- the lock mechanism may be configured to shift from the shift lock state to the unlock state.
- the shift lock state can be released not only by the operation by the brake operation mechanism described above but also by an operation by the shift lock mechanism or an operation by the continuously variable transmission speed change operation mechanism.
- the lock member in the case of an operation by the shift lock mechanism, when the lock operation member is manually operated to the release position, the lock member is moved to the release position based on the manual operation of the lock operation member. It swings around the first pivot shaft so that it is located at the release position. Then, the engagement of the lock claw portion of the lock member with the tooth portion of the ratchet body is released, whereby the pedal shaft biased toward the neutral side is moved toward the neutral side. Accordingly, the forward shift pedal is returned to the neutral position. Thus, the shift lock state of the shift lock mechanism is released.
- the pedal shaft rotates about the axis toward the forward side, and accordingly, the ratchet body rotates around the pedal shaft or the pedal shaft according to the rotation around the axis of the pedal shaft. Swings forward around a substantially parallel axis.
- the lock member is urged toward the release position by the lock release urging member, and the ratchet body of the lock claw portion of the lock member is swung forward by the ratchet body. The engagement with the tooth portion is released.
- the forward shift pedal is returned to the neutral position. In this way, the shift lock state of the shift lock mechanism is released.
- the lock member includes a center portion that is rotatable about an axis about the first pivot shaft, and the center portion force.
- a first arm portion extending toward the body, and having the lock claw portion, and when the plurality of tooth portions are viewed along the axis of the pedal shaft
- the first arm portion is arranged along a tangential direction with respect to the virtual arc.
- the plurality of tooth portions in the lattice body swing along the virtual arc
- the locking claw force in the first arm portion along the tangential direction with respect to the virtual arc swings along the virtual arc.
- the lock member force has a second arm portion extending on the opposite side to the first arm portion across the central portion, and the engagement portion of the brake operation shaft is the second arm portion. It is configured to engage with the arm part!
- the lock member includes the first arm portion, and the plurality of tooth portions are arranged along the virtual arc,
- the lock claw is moved when the ratchet body is urged toward the neutral side by the urging force of the neutral urging mechanism.
- a tooth-side second contact surface that contacts the lock claw portion, and the lock claw portion includes a first tooth-side contact surface and a second tooth-side contact on the tooth portion of the ratchet body.
- the first contact surface on the side runs along the radial direction with respect to the pedal shaft, and the second contact surface on the tooth side moves toward the outer side in the radial direction with reference to the pedal shaft. It is preferable that the first abutment surface force is also provided to be separated.
- the ratchet body In the configuration having the contact surfaces on the tooth side and the claw side, the ratchet body is biased toward the neutral side by the biasing force of the neutral biasing mechanism in the shift lock state of the shift lock mechanism.
- the ratchet body When the locking claw in the first arm portion along the tangential direction with respect to the virtual arc engages with the tooth portion in the ratchet swinging along the virtual arc, the ratchet body The tooth part side first contact surface in contact with the claw side first contact surface of the lock claw part.
- the lock pawl portion of the lock member urged toward the release position by the lock release urging member is the first pivot support.
- the lattice physical force tends to shift in the direction away from the axis, but the plurality of teeth in the lattice body biased to the neutral side are arranged along the virtual arc, Since the lock claw in the first arm portion is along the tangential direction with respect to the virtual arc, and the tooth side first contact surface is along the radial direction with respect to the pedal shaft, the tooth portion When the first contact surface on the side contacts the first contact surface on the claw side, the tangential direction (in other words, the first contact surface on the claw side from the first contact surface on the claw side) A force is applied in the direction toward the first pivot shaft, whereby the lock member is held at the lock position. Further, when the shift lock state of the shift lock mechanism is released, the brake operation shaft moves to the brake release position force to the brake operation position.
- the lock member moves away from the ratchet body by moving to the release position around the first pivot shaft, thereby releasing the shift lock state.
- the tooth is moved when the lock member moves from the lock position to the release position.
- the first contact surface on the part side is separated from the first contact surface on the claw side, so that the pedal shaft biased toward the neutral side rotates about the axis toward the neutral side. Accordingly, the forward shift pedal is returned to the neutral position.
- the shift lock state of the shift lock mechanism is released.
- the plurality of tooth portions in the ratchet body biased to the neutral side are arranged along the virtual arc.
- the first abutment surface force is provided so as to be separated, so that when the forward shift pedal moves from the neutral side to the advance side, the first abutment surface on the tooth side is the claw side.
- the ratchet body moves away from the first contact surface and moves toward the neutral side by the biasing force toward the neutral side, or the ratchet body moves together with the biasing force at the claw side first contact surface.
- Neutral along second contact surface on tooth side The lock member biased toward the release position by the lock release bias member moves to the release position around the first pivot shaft. Before In this state, when the manual operation to the forward side of the forward shift pedal is stopped, the forward shift pedal is returned to the neutral position. Thus, the shift lock state of the speed change lock mechanism is released.
- the tooth portion and the lock claw portion further have a second contact with each other when the first contact surfaces contact each other. It is preferable that a gap be formed between the contact surfaces. In this way, when the shift lock state is released by the continuously variable transmission device shift operation mechanism, the lock claw portion of the lock member is in contact with the tooth portion of the ratchet body. When the engagement is released, the tooth portion side first contact surface can be easily separated from the claw side first contact surface.
- the neutral biasing mechanism is a neutral setting push which is swingable about a second pivot shaft substantially parallel to the first pivot shaft.
- a neutral setting pusher member having a cam surface that is concave when viewed along the axial direction of the second pivot shaft; and a third pivot member substantially parallel to the second pivot shaft.
- a neutral setting driven member that is swingable about an axis, the neutral setting driven member having a cam driven portion that engages with the cam surface, and the cam surface being pressed by the cam driven portion.
- a neutral setting urging member for urging the neutral setting pushing member, and the neutral setting driven member is interlocked with the swinging of the ratchet body around the pedal shaft.
- the cam follower is linked to the ratchet body so as to swing around the three pivot shafts.
- HayaMisao operation mechanism can be exemplified those which are adapted to the deepest part and the engagement of the cam surface when the neutral state.
- the neutral biasing mechanism supports the neutral setting pusher member so as to be swingable around the second pivot shaft, and allows the neutral setting follower member to swing around the third pivot shaft.
- the base member is further connected to a member (including a transmission case) constituting the vehicle frame so that the position of the base member can be adjusted. By doing so, the neutral urging mechanism can be easily and easily adjusted to the neutral position.
- the continuously variable transmission speed change operating mechanism is a reverse speed change pedal that is not rotatable relative to the pedal shaft, And a reverse shift pedal for rotating the pedal shaft about an axis based on the operation, the pedal shaft based on an operation of the forward shift pedal and the reverse shift pedal, respectively, You may comprise so that it may rotate to the other side.
- the present invention includes a forward shift pedal and a reverse shift pedal for shifting the traveling continuously variable transmission provided in the work vehicle.
- the forward shift pedal and the reverse shift pedal are spaced apart in the vehicle width direction so that a footrest area is defined between one of the left and right step bases of the work vehicle.
- a second traveling operation device is provided.
- the continuously variable transmission operated by the continuously variable transmission operating mechanism is typically exemplified by HS ⁇ (Hydro Static Transmission, HMT (Hydro Mechanical Transmission), belt transmission, etc. Can be mentioned.
- the left and right step bases in the work vehicle. Since the footrest region is defined between the forward shift pedal and the reverse shift pedal that are spaced apart in the vehicle width direction, a space for placing feet in the footrest region on the one side Therefore, it is excellent in ease of getting on and off, and, for example, even when operation members such as various operation levers are provided, the operability is good.
- the forward shift pedal when the work vehicle is moved forward or backward, the forward shift pedal is depressed and the reverse shift pedal is depressed.
- the reverse shift pedal can be operated with relatively little movement from the position of the forward shift pedal when resting the position force of the forward shift pedal.
- the footrest area facing the side can be placed, and similarly, when the position force of the reverse shift pedal rests, the movement of the reverse shift pedal from the position of the reverse shift pedal is relatively low.
- the foot can be placed on the footrest area facing the forward shift pedal.
- a footrest member for resting a foot in the footrest region defined between the forward shift pedal and the reverse shift pedal may be provided.
- Specific examples of the second traveling operation device according to the present invention include the following. Can. Good fall,
- the shift pedal shaft further includes a shift pedal shaft that supports the base end portions of the forward shift pedal and the reverse shift pedal in a relatively non-rotatable manner, and the forward shift pedal and the reverse shift pedal are respectively
- the shift pedal shaft is coupled to the shift pedal shaft so as to rotate the shift pedal shaft to one side and the other side around the axis, and the forward shift pedal is located on the outer side of the one step base in the vehicle width direction.
- the reverse shift pedal is disposed in the vehicle width direction inward of the one step base with respect to the shaft, and is disposed rearward and upward with respect to the shift pedal shaft. This is the configuration.
- the vehicle when the work vehicle is moved forward, the vehicle is moved forward with respect to the shift pedal shaft on the outside of the one step base in the vehicle width direction.
- the forward shift pedal disposed above can be depressed, and when the work vehicle is moved backward, the shift pedal shaft is located inside the one step base in the vehicle width direction.
- the shift pedal shaft that connects the forward shift pedal and the reverse shift pedal can be used as the footrest member. That is, the shift pedal shaft can also serve as the footrest member. By doing so, it is possible to assemble with a simple configuration without having to provide a dedicated member for the footrest, and the manufacturing cost can be kept down accordingly.
- the shift pedal shaft also serves as the footrest member in this way, for example, the forward shift pedal and the reverse shift pedal are connected to the shift pedal shaft and the stepping portions of the two variable pedals.
- the portion where the straight line intersects can be disposed so as to be located at a substantially central portion between the two speed change pedals of the speed change pedal shaft.
- the foot when resting the position force of the forward shift pedal, the foot is placed on the substantially central portion on the shift pedal shaft along the straight line from the stepped portion of the forward shift pedal.
- the substantially central portion on the shift pedal shaft extends along the straight line from the stepped portion of the reverse shift pedal. You can put your feet on.
- the forward shift pedal has a first region of directional force outward in the vehicle width direction from the base end portion toward the distal end side.
- the first region may be the entire forward shift pedal or a part of the forward shift pedal. In this way, for example, when the driver sits in the driver's seat (especially when a handle column is provided), the direction of the forward shift pedal can be adjusted to the direction of the foot that tends to open, The operability can be improved accordingly.
- the forward shift pedal further includes a second region in which the first region force extends, and the second region is inward in the vehicle width direction based on the first region (in other words, It may be deflected (to the footrest region side).
- the second region may extend from the first region to the front end side, or may protrude from the first region inward in the vehicle width direction.
- the distance of the foot movement between the forward shift pedal and the footrest area is determined as the forward shift pedal.
- the second region in the vehicle can be shortened by being deflected inward in the vehicle width direction (in other words, toward the footrest region) with respect to the first region, thereby reducing the burden on the foot. can do.
- the pedal length in the vehicle front-rear direction of the forward shift pedal and the reverse shift pedal is set to a predetermined length that is easy to be depressed. It is difficult to step in if it is too short.
- the forward shift pedal is disposed in front of the vehicle with respect to the shift pedal shaft
- the reverse shift pedal is disposed in the rear of the vehicle with reference to the shift pedal shaft.
- the shift pedal shaft is inclined with respect to the vehicle frame such that the outer end portion in the vehicle width direction is located behind the inner end portion in the vehicle width direction.
- the forward and backward shift pedals are connected to the shift pedal shaft while maintaining the longitudinal pedal lengths of the forward shift pedal and the reverse shift pedal.
- the brake pedal when the brake pedal for further operating the travel brake device provided in the work vehicle is further provided, the brake pedal is based on the forward shift pedal. If the brake pedal is disposed on the one of the step bases so as to be located outward in the vehicle width direction, the movement distance of the foot when the brake pedal is depressed is increased. Further, when the brake pedal is disposed on the one step base at substantially the same position along the vehicle longitudinal direction with respect to the forward shift pedal, the forward shift pedal is provided. The position of the stepping part of the brake pedal has to be placed relatively upward with respect to the position of the stepping part of the forward shift pedal, and as a result, the foot has to be raised relatively high, so that the operability is likely to deteriorate. Yes.
- the brake pedal is disposed on the one step base so as to be positioned inward in the vehicle width direction with respect to the forward shift pedal.
- the brake pedal is disposed on the one step base so that the brake pedal is positioned inward in the vehicle width direction with respect to the forward shift pedal. If the position of the stepping part of the brake pedal is arranged in the same direction in the vertical direction of the vehicle or in the vicinity of the upper part or in the lower part of the position of the part, As a result, pedal operation can be performed while maintaining the height of the foot between the forward shift pedal and the brake pedal, and the operability of the pedal operation can be improved accordingly. it can.
- the brake pedal may be a suspension type that is swingable about a brake pedal shaft positioned above the brake pedal. I like it!
- the brake pedal is disposed in front of the vehicle at substantially the same position along the vehicle longitudinal direction with respect to the reverse shift pedal. For example, even when the driver performs the depressing operation of the reverse shifting pedal and the depressing operation of the brake pedal while checking the rear side, the vehicle longitudinal direction based on the reverse shifting pedal and the reverse shifting pedal is used. Since it is only necessary to move the foot back and forth between the brake pedal and the brake pedal, the stepping operation can be easily performed.
- the “substantially the same position along the vehicle longitudinal direction” refers to a position where the brake pedal overlaps in the vehicle width direction with reference to the reverse shift pedal.
- the forward shift pedal, the reverse shift pedal, and the brake pedal are triangular with their stepping portions as apexes, for example, the forward shift pedal and the brake pedal.
- the straight line connecting the stepping portions and the straight distance connecting the stepping portions of the reverse shift pedal and the brake pedal can be arranged in a substantially isosceles triangle shape. In this way, the movement of the foot can be made with the substantially central portion of the foot as a fulcrum, and the pedal can be operated efficiently with little movement of the foot.
- the work vehicle includes a shift pedal shaft that supports each base end portion of the forward shift pedal and the reverse shift pedal so as not to be relatively rotatable.
- a brake pedal for operating the travel brake device wherein the forward shift pedal and the reverse shift pedal rotate the shift pedal shaft to one side and the other side around the axis, respectively.
- the forward shift pedal is disposed forward and upward of the vehicle with respect to the shift pedal shaft outside the one step base in the vehicle width direction
- the reverse shift pedal Luka is disposed rearward and upward of the vehicle with respect to the shift pedal shaft, inwardly in the vehicle width direction of the one step base
- the forward shift pedal is a base end force
- the forward shift pedal further includes a second region extending from the first region of the forward shift pedal. The second area is biased inward in the vehicle width direction with respect to the first area, and the brake pedal force is adjusted with respect to the forward shift pedal. If the brake pedal is disposed on the one step base so as to be located inward in the direction, the brake pedal is a vehicle based on a deflection portion between the first region and the second region.
- the “substantially the same position along the vehicle width direction” refers to a position where the brake pedal overlaps in the vehicle front-rear direction with reference to the deflection portion. In this configuration, it is possible to reduce the movement of the foot between the stepping operation of the forward shifting pedal and the stepping operation of the brake pedal, and the operability of the powerful stepping operation can be improved accordingly.
- the present invention provides a pair of left and right mudguard hoods provided in front of the vehicle with respect to the driver's seat in a work vehicle with the driver's seat exposed. And a pair of left and right foot guard support members, and a vehicle width light is detachably provided so that a light emitting portion of the vehicle width light faces the front of the vehicle.
- a work vehicle is provided.
- a vehicle width lamp is provided on at least one of the pair of left and right foot guard support portions provided in front of the vehicle with respect to the driver seat, and the light emission portion of the vehicle width lamp is provided. Since it is provided so as to face the front of the vehicle, when a third party tries to move the work vehicle forward or laterally, the third party will emit the light emission forward of the vehicle with respect to the driver seat.
- the light of the above-mentioned width light power provided so that the section faces the front of the vehicle can be visually recognized without being blocked by the driver or the vehicle body, and this makes it possible to see the third-party work vehicle with good visibility. Sex can be obtained.
- the light from the width lamp provided so that the light emitting portion faces the front of the vehicle with respect to the driver's seat is forward of the vehicle with respect to the driver's seat. Since the irradiation is further directed forward, the driver's rear field of view (for example, the field of view when the driver steers the work vehicle facing the rear side) is improved. Light radiated further forward from the vehicle width lamp is difficult to enter the driver's eyes even when the driver is facing forward, so the driver's forward view (for example, the driver is facing forward) The field of view when maneuvering a work vehicle is also good. Further, since the vehicle width lamp is detachably provided, it is possible to easily cope with whether or not the vehicle width lamp is installed according to the specifications of the work vehicle.
- the small pair of the left and right foot guard support members is used.
- At least one direction indicator lamp may be detachably provided so that the light emitting portion of the direction indicator lamp faces the front of the vehicle.
- This work vehicle has the same advantages as the case of the above-mentioned vehicle width lamp. That is, a direction indicator lamp is provided on the at least one of the pair of left and right foot guard support portions provided in front of the vehicle with respect to the driver seat, and a light emitting portion of the direction indicator lamp is provided in front of the vehicle. Therefore, when a third party moves away from the work vehicle in front or side force, the third party faces the vehicle forward with respect to the driver's seat, and the light emitting unit faces the vehicle front.
- the direction indicator lamp provided on the vehicle without being blocked by the driver or the vehicle body, thereby obtaining good visibility with respect to a third-party work vehicle.
- the light of the direction indicator lamp provided so that the light emitting part faces the front of the vehicle with respect to the driver's seat and the front of the vehicle with respect to the driver's seat.
- the driver's rear view is improved, and the light emitted further forward from the direction indicator light is Therefore, even when the vehicle is facing forward, it is difficult for the driver to enter the eyes.
- the direction indicator lamp is detachably provided, it is possible to easily cope with the presence or absence of the direction indicator lamp according to the specifications of the work vehicle.
- a rearview mirror is provided on at least one of the pair of left and right foot guard support members.
- the rearview mirror may be provided rotatably on the foot guard support member, or may be provided detachably. For example, by rotating the rearview mirror on the foot guard support member, the rearview mirror does not protrude outward (specifically, it does not get in the way during mowing work).
- the rearview mirror By moving the rearview mirror, the rearview mirror can be stored compactly, and in particular, it can work effectively even in a narrow space such as a barn. Further, by providing the rearview mirror detachably on the foot guard support member, the rear mirror can be easily replaced between one side and the other side of the left and right foot guards.
- a portion of the foot guard support member where the vehicle width lamp and the direction indicator lamp are provided includes an extending portion extending in a predetermined direction,
- the extension portion force is formed in an L-shaped cross section consisting of a bent portion bent substantially at a right angle, and the vehicle width lamp and the direction indicator lamp are arranged in the bent portion. I like it.
- a rearview mirror may be provided in the extension part.
- a rearview mirror is provided at the extension portion, a work vehicle Transmission of vibration from to the rear-view mirror provided in the extension portion can be suppressed.
- the rearview mirror is preferably provided on the extension part so as to be rotatable and Z or detachable.
- the rear vehicle width lamp and the Z or direction indicator lamp are further arranged at the rear of the vehicle with reference to the driver seat.
- the light emitting part of the direction indicator lamp may be provided so as to face the vehicle rear.
- the light from the rear width lamp and the Z or direction indicator lamp provided so that the light emitting portion faces the rear of the vehicle with respect to the driver's seat is referred to the driver's seat.
- the rear vehicle width lamp and the Z or direction indicator lamp are further arranged at the rear of the vehicle with reference to the driver seat.
- the light emitting part of the direction indicator lamp may be provided so as to face the vehicle rear.
- the light from the rear width lamp and the Z or direction indicator lamp provided so that the light emitting portion faces the rear of the vehicle with respect to the driver's seat is referred to the driver's seat.
- the rear vehicle width lamp and the Z or direction indicator lamp are further arranged at the rear of the vehicle with reference to the driver seat.
- the light emitting part of the direction indicator lamp may be provided so as to face the vehicle
- the light radiated rearward is difficult to enter the driver's eyes even when the driver is facing backward, so the driver's rear view is good.
- the brake operation mechanism can be operated in the shift lock state of the shift lock mechanism.
- the locked state can be released.
- a space for placing a foot can be made relatively large on one side of the left and right step bases, and thus it is excellent in getting on and off, for example, various operations. Even when an operation member such as a lever is provided, the operability is good.
- the step-down operation of the forward shift pedal and the step-down operation of the reverse shift pedal can be performed across the footrest region, and the forward drive
- the reverse shift pedal side is moved with a relatively small and efficient movement from the position of the forward shift pedal.
- the position of the reverse shift pedal can be rested, and when the foot is rested, the forward shift can be performed with an efficient and relatively small movement from the position of the reverse shift pedal.
- a foot can be placed on the footrest area facing the transmission pedal side.
- the work vehicle according to the present invention when the work vehicle is viewed from the front or side by a third party, the third person's visibility to the work vehicle and the driver's rear view are obtained. Can be improved.
- a vehicle width lamp faces at least one of the pair of left and right foot guard support portions provided in front of the vehicle with respect to the driver seat, and a light emission portion of the vehicle width light faces the vehicle front. Therefore, when a third person tries to move the work vehicle forward or laterally, the third person is in front of the vehicle with respect to the driver's seat, and the light emitting unit is in the vehicle. The light from the vehicle width lamp provided to face forward can be seen without being blocked by the driver or the vehicle body, thereby obtaining good visibility to a third-party work vehicle. Can do.
- the light of the vehicle width light power provided so that the light emitting part faces the front of the vehicle with respect to the driver's seat and the driver's seat as a reference Since the light is emitted further forward from the front of the vehicle, the driver's rear view is improved, and the light emitted further forward from the vehicle width light is Therefore, even when the vehicle is facing forward, it is difficult for the driver to enter the eyes. Therefore, the driver's front view is good. Furthermore, since the vehicle width lamp is detachably provided, it is possible to easily cope with whether or not the vehicle width light is installed according to the specifications of the work vehicle.
- FIG. 1 is a schematic side view of a work vehicle including a travel operation device according to the present embodiment.
- FIG. 2 is a schematic front view of the work vehicle shown in FIG.
- FIG. 3 and FIG. 4 are schematic side views for explaining the traveling operation device according to the present embodiment.
- FIG. 4 is a schematic plan view for explaining the traveling operation device according to the present embodiment.
- FIG. 5 is a view showing a plurality of teeth in the ratchet and a lock claw in the lock member. It is an enlarged view which shows an engagement state.
- FIG. 6 is an enlarged view showing the neutral urging mechanism shown in FIGS. 3 and 4 and its peripheral portion.
- FIG. 7 is a view for explaining a state in which the neutral setting driven member is linked to the ratchet body.
- FIG. 8 is a diagram showing a schematic configuration of a neutral urging mechanism.
- FIG. 8 (A) is a side view thereof
- FIG. 8 (B) is a plan view thereof
- FIG. A perspective view is shown.
- FIG. 9 is a schematic side view for explaining a brake operation mechanism.
- FIG. 10 is a schematic plan view for explaining a brake operation mechanism.
- FIG. 11 is a schematic perspective view for explaining a brake operation mechanism.
- FIG. 12 is a schematic side view of the work vehicle according to the present embodiment.
- FIG. 13 is a schematic front view of the work vehicle shown in FIG.
- FIG. 14 is an exploded perspective view for explaining a state in which a vehicle width lamp and a direction indicator lamp are installed on the left and right foot guard support members and a rearview mirror is installed on the left foot guard support member.
- FIG. 15 is a schematic front view showing a state where the safety frame is folded in the work vehicle shown in FIGS. 12 to 14.
- FIG. 16 is a schematic side view showing a state in which a vehicle width light and a direction indicator light are provided in a work vehicle having a cabin covering the periphery of a driver seat.
- FIG. 17 is a schematic front view showing a state in which a vehicle width light and a direction indicator light are provided in a work vehicle having a cabin covering the periphery of a driver seat.
- FIG. 1 is a schematic side view of a work vehicle provided with a traveling operation device for solving the first and second problems according to the present embodiment
- FIG. 2 is a schematic front view of the vehicle.
- Work vehicle 500 is a tractor in this embodiment, and as shown in FIGS. 1 and 2, the driving force from engine 5 as a drive source is applied to the vehicle longitudinal direction (X direction in the figure) on one side and the other side. Configured to transmit to a pair of steering wheels and a pair of non-steering wheels respectively arranged on the side Has been.
- the front wheel 1 is a steered wheel and the rear wheel 2 is a non-steered wheel.
- the front wheel 1 and the rear wheel 2 are supported on the front and rear of the machine, and the engine 5 is disposed inside the hood 6 at the front of the machine.
- a dashboard 4 is disposed behind the bonnet 6, and a steering handle 10 is provided on the dashboard 4.
- a steering column 16 is provided below the steering handle 10, and a driver seat 11 is provided rearward. Is provided. Further, operation members such as various operation levers are disposed on the dashboard 4 near the steering handle 10 and the rear wheel fender 14 on the side of the driver's seat 11.
- a mission case 50 is disposed at the rear of the engine 5, and the power from the engine 5 is transmitted to the rear wheel 2 to drive the rear wheel 2.
- the transmission case 50 is provided with a continuously variable transmission for traveling (in this example, HST13), and the driving direction of the rear wheels 2 is controlled by operating the forward shift pedal 121 and the reverse shift pedal 122, which will be described later.
- the driving speed can be set arbitrarily.
- a traveling brake device 8 having left and right rear wheel brake mechanisms for applying a braking force to the driving wheels of the rear wheels 2 is provided behind the driving wheels.
- the rear-wheel brake mechanism described above applies an individual or integrated braking force directly or indirectly to a pair of main drive shafts to which the driving force from the engine 5 is transmitted in a branched manner based on selective external operation.
- the braking force can be applied individually and independently to the left and right rear wheel drive shafts.
- the driving force of the engine 5 is transmitted to the PTO shaft 15 protruding from the rear end of the transmission case 50, and is transmitted from the PTO shaft 15 to the rear end of the body through a universal joint (not shown). It is configured to drive a work machine that is mounted via the work machine.
- This work vehicle 500 is a continuously variable transmission shift operation mechanism (in this example, an HST shift operation mechanism) urged toward the neutral side 100 (not shown in FIGS. 1 and 2; FIG. 3 and FIG. 4), a travel operation device including a shift lock mechanism 200 and a brake operation mechanism 300 is further provided.
- a continuously variable transmission shift operation mechanism in this example, an HST shift operation mechanism
- HST shift operation mechanism urged toward the neutral side 100 (not shown in FIGS. 1 and 2; FIG. 3 and FIG. 4)
- a travel operation device including a shift lock mechanism 200 and a brake operation mechanism 300 is further provided.
- FIG. 3 and 4 are diagrams for explaining the traveling operation device according to the present embodiment.
- FIG. 3 is a schematic side view thereof
- FIG. 4 is a schematic plan view thereof.
- the HST operation mechanism 100 includes a shift pedal shaft 110, a forward shift pedal 121, a reverse shift pedal 122, a ratchet body 130, and a neutral urging mechanism 140.
- the forward shift pedal 121 and the reverse shift pedal 122 both shift the traveling continuously variable transmission (HST in this example) 13 provided in the work vehicle 500.
- the footrest region ⁇ is defined between both 121 and 122 in the vehicle width direction ((direction in the figure). They are spaced apart.
- the pedal shaft 110 is provided so as to be rotatable about its axis with respect to the support member 12b attached to the right step base 12 with bolts 12a.
- the pedal shaft 110 has one end portion (here, the outer end portion in the vehicle width direction Y) and the rear end portion 121 ′ of the forward shift pedal 121, and the other end portion (here, the inner end portion in the vehicle width direction Y).
- the base end 122 ′ of the transmission speed change pedal 122 is supported so as not to be relatively rotatable.
- the forward shift pedal 121 and the reverse shift pedal 122 are respectively connected to the shift pedal shaft 110 so as to rotate the shift pedal shaft 110 to one side and the other side around the axis based on an artificial operation. ing.
- the pedal shaft 110 can rotate to one side and the other side around the axis, respectively, based on the operation of the forward shift pedal 121 and the reverse shift pedal 122.
- the forward shift pedal 121 is disposed forward and upward of the vehicle with respect to the shift pedal shaft 110 outside the vehicle width direction Y of the right step base 12, and the reverse shift pedal 122 is In the vehicle width direction Y inward of the right step base 12, the vehicle is disposed rearward and upward with respect to the shift pedal shaft 110 as a reference.
- the shift pedal shaft 110 connecting the forward shift pedal 121 and the reverse shift pedal 122 also serves as a footrest member for resting the foot F in the footrest region ⁇ .
- Shift pedal 121 and reverse shift pedal 122 are the parts where the shift pedal shaft 110 intersects the straight line ⁇ connecting the stepped portions CI and C2 of both shift pedals 121 and 122 Q is the double shift pedal of the shift pedal shaft 110 Located at the approximate center between 121 and 122 It is arranged so that.
- the forward shift pedal 121 has a first force region 121a in the vehicle width direction Y outward as the base end portion 121 'force also goes to the front end side.
- the first region 121a may be the entire forward shift pedal 121 as shown by the broken line in FIG. 4, but in this example, the forward shift pedal 121 extends from the first region 121a.
- the second region 121b is further deflected inward in the vehicle width direction Y with respect to the first region 121a (in other words, to the footrest region ⁇ side).
- the forward shift pedal 121 has a boomerang shape in plan view in which the second region 121b extends from the first region 121a to the distal end side, and the base end portion 121 ′ is located on the footrest region ⁇ side from the deflection portion A.
- the distal end portion ⁇ is provided so as to be located further on the footrest region ⁇ side than the proximal end portion 121 ′.
- the second region 121b may be, for example, a rod-like shape, and may protrude from the first region 121a inward in the vehicle width direction Y (to the footrest region ⁇ side).
- the speed change pedal shaft 110 is arranged so that the vehicle width direction Y outer end portion is located behind the vehicle width direction Y inner end portion. It is tilted and placed against the vehicle frame (right step base 12 in this example).
- the latch pad body 130 swings about an axis substantially parallel to the pedal shaft 110 (in this example, about the pedal shaft 110) in response to the rotation about the axis of the pedal shaft 110. It has a plurality of teeth 131.
- the plurality of tooth portions 131 are arranged along a virtual arc centered on the pedal shaft 110 when viewed along the axis of the pedal shaft 110.
- FIG. 5 is an enlarged view showing an engaged state between a plurality of teeth 131 in the ratchet body 130 and a lock claw 211 in a lock member 210 described later.
- the tooth 131 of the ratchet body 130 has a locking claw 211 when the ratchet body 130 is urged toward the neutral side P1 by the urging force of the neutral urging mechanism 140 described later.
- the ratchet body 130 is swung to the forward side P2 against the biasing force of the neutral biasing mechanism 140 by the manual operation of the tooth side first contact surface 131a and the forward shift pedal 121. At this time, it has a tooth portion side second abutting surface 13 lb in contact with the lock claw portion 211.
- the ratchet body 130 is provided with an air-type shock absorber 1302, as shown in FIGS.
- the shock absorber 132 is provided at one end with the transmission case 50 and at the other end with the ratchet body 130. As a result, it is possible to prevent a sudden depression of the forward shift pedal 121 or a sudden neutral return operation.
- FIG. 6 shows an enlarged view of the neutral urging mechanism 140 shown in FIGS. 3 and 4 and its peripheral portion.
- the neutral urging mechanism 140 urges the pedal shaft 110 (not shown in FIG. 6) to the neutral side, and includes a neutral setting push member 141 and a neutral setting member.
- a driven member 142 and a neutral setting biasing member 143 are provided.
- the neutral setting push member 141 is a second pivot shaft 52 that is substantially parallel to a first pivot shaft 51 (see FIGS. 3 and 4), which will be described later, with respect to the base member 144 attached to the mission case 50.
- the cam surface 141a is supported so as to be swingable and has a concave shape when viewed along the axial direction of the second pivot shaft 52.
- the neutral setting follower 142 is supported by a self-supporting swinging around the third pivot shaft 53 substantially parallel to the second pivot shaft 52 with respect to the base member 144 attached to the mission case 50. It has a cam follower (in this example, a bearing 142a) that engages with the cam surface 141a of the moving member 141.
- the bearing 142a is supported by a support shaft 142a ′ fixed to the neutral setting follower 142.
- the neutral setting biasing member 143 biases the neutral setting pushing member 141 so that the cam surface 141a of the pushing member 141 is pressed against the bearing 142a.
- This is a winding panel in which the other end 143b is connected to the base member 144 attached to the transmission case 50 in the through hole 141b in the open end of the pushing member 141.
- the neutral setting follower 142 is linked to the ratchet body 130 so as to swing about the third pivot shaft 53 in conjunction with the swing of the ratchet body 130 about the pedal shaft 110. This will be further described with reference to FIG.
- FIG. 7 is a view for explaining a state in which the neutral setting driven member 142 is linked to the ratchet body 130.
- the neutral setting follower 142 has a support shaft 142c fixed substantially parallel to the third pivot shaft 53, and the ratchet body 130 is substantially parallel to the third pivot shaft 53.
- the connecting member 145 is rotatably connected to the supporting shaft 142c of the neutral setting driving member 142 at one end and to the supporting shaft 133 of the ratchet body 130 at the other end. ing. From this point, the neutral setting follower member 142 is a ratchet 13 When the connecting member 145 is interlocked with the swing of the zero pedal shaft 110, it can swing around the third pivot shaft 53.
- the HST 13 has a speed change arm 13a for setting the driving direction and driving speed of the HST 13 by swinging in the vehicle longitudinal direction X.
- the transmission gear 13a is linked to the neutral setting driven member 142 so as to swing in the vehicle longitudinal direction X in conjunction with the swing of the neutral setting driven member 142 around the third pivot shaft 53.
- the transmission arm 13a has a connecting member 13b that is rotatable about an axis substantially parallel to the support shaft 142c, and the neutral setting follower member 142 penetrates the support shaft 142c in a substantially parallel direction.
- a through hole 142b (see FIG. 8) is provided.
- the connecting member 13b has a free end portion 13b 'bent to the through hole 142b side of the neutral setting follower member 142, and is rotatably fitted in the through hole 142b.
- the speed change arm 13a can swing in the vehicle longitudinal direction X by interlocking with the connecting member 13b in response to the swing of the neutral setting follower 142 around the third pivotal shaft 53.
- the drive direction and drive speed can be set arbitrarily.
- the bearing 142a is configured to engage with the deepest portion P of the force surface 141a of the pushing member 141 when the HST speed change operation mechanism 100 is in a neutral state. As a result, the HST speed change operation mechanism 100 is always biased to the neutral side.
- the neutral urging mechanism 140 supports the neutral setting pushing member 141 so as to be swingable around the second pivot shaft 52, and the neutral setting driven member 142 as the third pivoting member 142.
- a base member 144 is provided that is swingably supported around the pivot shaft 53 and attached to the mission case 50.
- the base member 144 is attached to the mission case 50 so that the position thereof can be adjusted. More specifically, as shown in FIG. 8, the base member 144 is provided with an adjustment long hole 144a whose longitudinal direction is along the vehicle front-rear direction X, and passes through the adjustment long hole 144a. By loosening the bolts attached to 50, the position can be adjusted along the vehicle longitudinal direction X with respect to the mission case 50.
- the shift lock mechanism 200 includes a shift lock state in which the HST shift operation mechanism 100 is artificially held at an arbitrary shift position and an unlock release that releases the shift lock state.
- the lock member 210 having the lock claw portion 211 described above the lock operation member 220 and the release urging member 230 are provided.
- the lock member 210 has a lock position where the lock claw portion 211 engages with the tooth portion 131 such that the lock claw portion 211 can selectively engage with the plurality of tooth portions 131 in the ratchet body 130.
- the lock claw portion 211 is allowed to swing around the first pivot shaft 51 substantially parallel to the pedal shaft 110 so that a release position for separating the lock claw portion 211 from the tooth portion 131 can be taken.
- the lock member 210 includes a central portion 212 that is rotatable about the axis of the first pivot shaft 110, and a first arm portion 213 that extends from the central portion 212 toward the ratchet body 130.
- the second arm portion 214 extends to the opposite side of the first arm portion 213 across the central portion 212, and the first arm portion 213 is along the tangential direction with respect to the virtual arc.
- the open end portion of the first arm portion 213 is bent at a substantially right angle along the vehicle width direction Y, and a lock claw portion 211 is formed on one side in the width direction of the bent open end portion.
- the lock claw portion 211 has claw-side first corresponding to the tooth-side first contact surface 131a and the tooth-side second contact surface 131b of the tooth portion 131 of the ratchet body 130, respectively.
- 1 contact surface 21 la and claw side second contact surface 21 lb.
- the tooth side first contact surface 211 a is along the radial direction with respect to the pedal shaft 110
- the tooth side second contact surface 21 lb has a diameter with respect to the pedal shaft 110. As it goes outward in the direction, it is provided so as to be separated from the tooth portion side first contact surface 211a.
- the tooth portion 131 and the lock claw portion 211 are configured such that a gap S is generated between the second contact surfaces 131b and 211b when the first contact surfaces 131a and 211a contact each other. ing.
- the first pivot shaft 51 is supported by a support member 250 attached to the right step base 12 with a bolt 2 51.
- the lock operation member 220 can be manually operated to position the lock member 210 at the lock position or the release position, and the first operation member 221, the second operation member 222, and the third operation member 223 are connected to each other.
- the first operation member 221 is rotatably supported by a support shaft 54 fixed substantially parallel to the first pivot shaft 51 with respect to the brake bracket 260 at the center portion, and the second operation member 222 at one end portion.
- the other end of the third operating member 223 is connected to one end of the third operating member 223 so as to be rotatable about an axis substantially parallel to the support shaft 54.
- the second operating member 222 connected to the first operating member 221 at one end has a gripping portion 222a at the other end.
- the other end portion is supported by a support member 41 provided on the dashboard 4 so as to slide in a substantially vertical direction.
- the third operating member 223 connected at one end to the first operating member 221 is connected to the second arm portion 214 of the lock member 210 at the other end so as to be rotatable about an axis substantially parallel to the support shaft 54. ing.
- the first operating member 221 rotates clockwise with the support shaft 54 as a fulcrum
- the third operating member 223 moves downward. Transition.
- the lock member 210 rotates in the clockwise direction in the drawing with the first pivot shaft 51 as a fulcrum, and is disposed at the lock position.
- the unlocking urging member 230 is a coil panel for operatively holding the locking member 210 in the releasing position, and applying an urging force by using a force returning to torsion, One end of the coil is connected to the third operating member 223 of the first operating member 221 and the other end of the coil so that the first operating member 221 is always urged counterclockwise in the figure with the support shaft 54 as a fulcrum. Connected to handle bracket 260. As a result, the lock member 210 can be biased toward the release position.
- FIGS. 9 to 11 are diagrams for explaining the brake operation mechanism 300.
- FIG. 9 is a schematic side view thereof
- FIG. 10 is a schematic plan view thereof
- FIG. 11 is a schematic perspective view thereof.
- the brake operation mechanism 300 operates the traveling brake device 8, and is configured so that the shift lock mechanism 200 can shift the shift lock state force to the unlocked state when the brake is operated.
- the brake operation mechanism 300 includes a left and right brake operation shaft 310, a brake operation member 320, and left and right brake release urging members 330.
- the left and right brake operation shafts 310 are disposed substantially parallel to the first pivot shaft 51, and the brake operation position for operating the travel brake device 8 and the brake operation of the travel brake device 8 are arranged. It can be rotated about its axis so that it can take a brake release position for releasing the movement, and is supported by left and right support members 270 (not shown in FIG. 11, also see FIG. 3).
- This left and right support member 270 is a cross-sectional view of a plate-like member that is bent at a substantially right angle with the center portion being a base portion 271 with respect to the central portion in the longitudinal direction and both end portions being both side portions 272.
- the left and right brake operation shafts 310 can be rotatably supported around the axis by the bent side portions 272.
- the right support member 270 that supports the right brake operation shaft 310 is fixed to the support member 250 that supports the first pivot shaft 51 by a bolt 273. Yes.
- the base portion 271 of the right support member 270 passes through the second arm portion 214 portion of the lock member 210 that is swingably supported by the first pivot shaft 51 and is rotatably connected to the third operation member 223.
- a through-hole 271a is provided, and the second arm portion 214 portion is included in the support member 270 by the second arm portion 214 portion passing through the through-hole 271a.
- the right brake operation shaft 310 is brought into contact with the second arm portion 214 of the lock member 210 when the right brake operation shaft 310 also shifts the brake release position force to the brake operation position.
- An engagement portion 311 for shifting the lock member 210 to the lock position force and the release position is provided, and the engagement portion 311 of the brake operation shaft 310 is engaged with the second arm portion 214 of the lock member 210. It is formed in a convex shape.
- the left and right brake operation members 320 can be manually operated to selectively position the left and right brake operation shafts 310 at the brake operation position or the brake release position, respectively.
- the left and right rear wheel brake mechanisms can be operated simultaneously, and includes a brake pedal 321, a brake pedal shaft 322, left and right first brake rods 323, and left and right second brake rods 324.
- the brake pedal 321 includes left and right brake base end portions 321a, 321b supported so as to be swingable about the brake pedal shaft 322, and the brake base end portions 321a, 32 lb.
- the left and right brake arm portions 321a and 321b extend rearward and downward, and pedal depression portions 321 ′ provided at the open ends of the brake arm portions 321a and 321b.
- the brake pedal shaft 322 is arranged on the brake bracket 260 along the vehicle width direction Y. It is supported by the brake bracket 260 so as to be rotatable about its axis.
- a left brake connecting member 321c is provided at the left end portion in the vehicle width direction Y of the brake pedal shaft 322 so as not to be relatively rotatable.
- the left brake base end 321a ' is fitted to the brake pedal shaft 322 so as not to rotate relative to the brake pedal shaft 322, and the right brake base end 321b' is adjacent to the left side of the vehicle width direction Y of the left brake base end 321a '.
- the left brake connecting member 321c and the right brake base end portion 321b ′ each have a brake lever 321d.
- Each of the left and right brake operation shafts 310 has two lever portions 312a and 312b that protrude radially from the rotation axis at a predetermined angle.
- the right first brake rod 323 is rotatably connected to a right brake lever 321d provided at the right brake base end 321b ′ at one end, and one lever of the right brake operation shaft 310 at the other end.
- the part 312a is rotatably connected.
- the right second brake rod 324 is pivotally connected at one end to the other lever portion 312b of the right brake operating shaft 310, and at the other end to the right of the brake device 8 in the vehicle width Y direction.
- a right brake mechanism operating member (not shown) provided is rotatably connected. This right brake mechanism actuating member can actuate the right rear wheel brake mechanism of the brake device 8 when shifting to the brake operating direction, while releasing the operation of the right rear wheel brake mechanism when shifting to the brake releasing direction. It is something that can be done.
- the left first and second brake rods 323 and 324 have the same configuration as the right first and second brake rods 323 and 324. That is, the first left brake rod 323 is rotatably connected to a left brake lever 321d provided on the left brake connecting member 321c at one end, and one of the left brake operation shafts 310 is connected to the other end.
- the lever portion 312a is rotatably connected.
- the second left brake rod 324 is pivotally connected at one end to the other lever 312b of the left brake operation shaft 310, and disposed at the other end to the left in the vehicle width Y direction of the brake device 8.
- the left brake mechanism operating member (not shown) provided is rotatably connected.
- This left brake mechanism actuating member can actuate the left rear wheel brake mechanism of the brake device 8 when shifting to the brake actuating direction, while releasing the operation of the left rear wheel brake mechanism when shifting to the brake releasing direction. It is something that can be done.
- Reference numeral 62 is a grommet rubber for preventing noise and dust from entering.
- the left and right rear wheel brake mechanisms in the brake device 8 can be operated separately and independently.
- the left and right brake arm portions 321a and 321b The brake arms 3 ⁇ 4321a and 321b that simultaneously actuate the rear wheel brake mechanism 3 ⁇ 4321a and 321b are connected together, and the brake arms 321a and 321b are integrated together. Is attached through.
- the pedal depression portion 321 ′ extends outward from the left and right sides of the brake arm portions 321a and 321b.
- the brake pedal 321 configured in this way is inward in the vehicle width direction Y with respect to the forward shift pedal 121, and in the first region 1 of the forward shift pedal 121.
- the reverse shift pedal 1 is provided on the right step base 12 so as to be located at substantially the same position along the vehicle width direction Y with the deflection part A of the 21a and the second region 121b as a reference T1.
- reference 22 as the reference T2, it is arranged in front of the vehicle at substantially the same position along the vehicle longitudinal direction X.
- the substantially same position along the vehicle width direction Y here refers to a position where the brake pedal 32 1 overlaps with the vehicle front-rear direction X with the deflection part A as the reference T1, and along the vehicle front-rear direction X.
- the substantially same position is a position where the brake pedal 321 overlaps in the vehicle width direction Y with the reverse shift pedal 122 as the reference T2.
- the forward shift pedal 121, the reverse shift pedal 122, and the brake pedal 321 have a triangular shape with the stepping portions C1 to C3 as apexes in a plan view, in this example, the forward shift pedal 121.
- the linear distance connecting the stepping part C1 of the brake pedal C3 and the stepping part C3 of the brake pedal 321 and the linear distance connecting the stepping part C2 of the reverse shift pedal 122 and the stepping part C3 of the brake pedal 321 are arranged in an approximately isosceles triangle Has been.
- the brake pedal 321 is a suspension type that is swingable about the brake pedal shaft 322 located above the brake pedal 321 and is shown in FIG. In this way, the position of the foot part C3 of the brake pedal 321 is substantially the same position in the vehicle vertical direction (in the vicinity of the upper part in this example) with respect to the position of the foot part C 1 of the forward shift pedal 121
- the left and right brake release urging members 330 actuate the left and right brake operation shafts 310, respectively.
- This is a coil panel that urges toward the brake release position and applies the urging force by using the force returning to the torsion, and the left and right brake operation shafts 310 are always shown in FIG. 9 and FIG.
- One end of the coil is connected to the other lever portion 312b of the left and right brake operation shafts 310, and the other end of the coil is connected to the left and right support members 270 so as to be biased about the direction axis.
- the brake operation shaft 310 can be biased toward the brake release position.
- the left and right brake levers 321d pivot upward and the left and right first brake rods 323 move upward, whereby the left and right brake operation shafts 310 rotate counterclockwise in the figure,
- the second brake rod 324 moves forward, and the left and right brake mechanism actuating members move in the brake actuating direction in conjunction with this movement, whereby the left and right rear wheel brake mechanisms of the brake device 8 are actuated.
- the left and right brake base end portions 321a 'and 321b' rotate clockwise in the figure, and accordingly, the left and right brake levers 321d rotate downward.
- the left and right first brake rods 323 move downward, and as a result, the left and right brake operation shafts 310 rotate clockwise in the figure, so that the left and right second brake rods 324 move rearward.
- the left and right brake mechanism operating members move in the brake release direction in conjunction with each other, the left and right rear wheel brake mechanisms of the brake device 8 are released.
- the shift pedal shaft 110 is always urged to the neutral side by the neutral urging mechanism 140 in the HST shift operation mechanism 100. In this way, when the pedal shaft 110 is urged to the neutral side! / When the forward shift pedal 121 is manually operated to the forward side, the forward shift pedal 121 is manually operated. Based on the pedal shaft 110 Rotate around the axis toward the forward side (clockwise in FIG. 3), and in accordance with this, the ratchet body 13 0 force Pedal toward the forward side around the pedal shaft 110 according to the rotation around the axis of the pedal shaft 110 Move.
- the pedal shaft 110 is biased from the forward side to the neutral side, and when the forward operation of the variable speed pedal 121 is released, the pedal shaft 110 attempts to return to the neutral side. Accordingly, the shift lock mechanism 200 holds the shift lock state at an arbitrary shift position.
- the lock member 210 is always held at the release position by the coil panel 230.
- the lock member 210 is positioned at the lock position based on an artificial operation of the lock operation member 220 to the lock position ( (Counterclockwise in FIG. 3)
- the lock member 210 is swung around the first pivot shaft 51 and positioned at the lock position, the lock member 210 is urged toward the release position by the coil panel 230.
- the lock claw portion 211 in 210 is engaged with the tooth portion 131 in the ratchet body 130.
- the HST shift operation mechanism 100 is held at an arbitrary shift position, and the shift lock state is established.
- the ratchet body 130 is biased toward the neutral side by the biasing force of the neutral biasing mechanism 140, and is tangential to the virtual arc.
- the locking claw portion 211 of the first arm portion 213 extending along the imaginary arc engages with the tooth portion 131 of the ratchet body 130 that swings along the virtual arc
- the tooth side first contact surface 131a of the ratchet body 130 Comes into contact with the first claw-side contact surface 211a of the lock claw portion 211 (see FIG. 5).
- the force is neutral when the lock claw portion 211 of the lock member 210 urged toward the release position by the coil panel 230 attempts to move away from the ratchet body 130 around the first pivot shaft 51.
- a plurality of teeth 131 in the ratchet body 130 urged to the side are arranged along the virtual arc, and the lock claw 211 in the first arm 213 is tangential to the virtual arc. Further, since the tooth portion side first contact surface 131a extends along the radial direction with reference to the pedal shaft 110, the tooth portion side first contact surface 131a becomes the claw side first contact surface 211a.
- the brake operation shaft 310 is always urged toward the brake release position by the coil panel 330. In this way, when the brake operation shaft 310 is biased to the brake release position, when the brake operation member 320 is manually operated to the brake operation position, the brake operation member 320 is manually operated. Based on the above, the brake operating shaft 310 rotates around the axis toward the brake operating position (counterclockwise in FIG. 3). At this time, when the shift lock mechanism 200 is in the shift lock state, the brake operating shaft 310 When the brake release position force also shifts to the brake operation position, the engaging portion 311 contacts the lock member 210, and the lock member 210 also shifts the lock position force to the release position. As a result, the shift lock state of the shift lock mechanism 200 is released.
- the shift lock mechanism 200 when the brake operation mechanism 300 is operated, the shift lock mechanism 200 is configured to shift to the shift lock state force lock release state. Even if there is no operation mechanism different from the brake operation mechanism 200, the lock shape can be released by operating the brake operation mechanism 300 while the shift lock mechanism 200 is in the shift lock state. [0102] 2. Unlocking by lock operation member
- the lock member 210 In the case of operation of the lock operation member 220, when the lock operation member 220 is manually operated to the release position, the lock member 210 is positioned at the release position based on the human operation of the lock operation member 220. (Counterclockwise in Fig. 3) It swings around the first pivot 51 and is in the release position.
- the forward shift pedal 121 In the case of the operation of the forward shift pedal 121, when the forward shift pedal 121 of the forward shift pedal 121 is moved to the forward side, the manual operation of the forward shift pedal 121 is performed. Based on human operation, the pedal shaft 110 rotates forward (clockwise in FIG. 3) around the axis, and accordingly, the ratchet body 130 force the pedal shaft 110 according to the rotation about the axis of the pedal shaft 110. Swings forward about axis 110. At this time, the lock member 210 is urged toward the release position by the coil panel 230, and the ratchet body 130 of the lock claw 211 in the lock member 210 is swung forward by the ratchet body 130 swinging forward. The engagement with the tooth portion 131 is released. In this state, when the forward operation of the forward shift pedal 121 is stopped, the forward shift pedal 121 is returned to the neutral position. Thus, the shift lock state of the shift lock mechanism 200 is released.
- the plurality of teeth 131 in the ratchet body 130 are arranged along the virtual arc by being biased to the neutral side.
- the lock claw portion 211 in the first arm portion 213 is along the tangential direction with respect to the virtual arc, and the tooth side second contact surface 13 lb is radially outward with respect to the pedal shaft 110. Accordingly, the toothed portion side first contact surface 131a is moved away from the toothed portion first contact surface 131a.
- the tooth body 130 moves toward the neutral side by the biasing force toward the neutral side, or the ratchet body 130 moves along with the tooth portion side second contact surface 131b at the claw side first contact surface 211b together with the biasing force.
- the lock member 210 urged toward the release position by the coil panel 230 (counterclockwise in FIG. 3) can be moved around the first pivot shaft 51.
- the tooth part 131 and the lock claw part 211 are configured such that a gap S is generated between the second contact surfaces 131b and 211b when the first contact surfaces 131a and 211a contact each other. Therefore, when the shift lock state is released by the HST speed change operation mechanism 100, the engagement of the lock claw portion 211 of the lock member 210 with the tooth portion 131 of the ratchet body 130 is released.
- the tooth side first contact surface 131a can be easily separated from the claw side first contact surface 211a.
- FIG. 12 is a schematic side view of a work vehicle for solving the third problem according to the present embodiment
- FIG. 13 is a schematic front view of the vehicle. 12 and FIG. 13 and FIG. 15 to be described later, the members having substantially the same configuration and action as the work vehicle shown in FIG. 1 and FIG. 2 are given the same reference numerals.
- Work vehicle 500 ′ is a so-called cabin-less work vehicle (in this example, a tractor) with the driver's seat exposed. As shown in FIG. 12 and FIG.
- the driving force is configured to be transmitted to a pair of steered wheels and a pair of non-steered wheels arranged on one side and the other side of the vehicle in the longitudinal direction (X direction in the figure).
- the front wheel 1 is a steered wheel and the rear wheel 2 is a non-steered wheel.
- the front wheel 1 and the rear wheel 2 are supported on the front and rear of the machine, and the engine 5 is disposed inside the hood 6 at the front part of the machine.
- a dashboard 4 is disposed behind the bonnet 6, and a steering handle 10 is provided on the dashboard 4.
- a steering column 16 is provided below the steering handle 10, and a driver seat 11 is provided rearward. Is provided.
- the steering wheel 10 near the dashboard 4 and the driver's seat 11 Operation members such as various operation levers are disposed on the der 14.
- Work vehicle 500 further supports a pair of left and right mudguard foot guards 70a, 70b provided in front of the vehicle with reference to driver's seat 11, and a pair of left and right foot guards 70a, 70b.
- These light emitting portions 81a ′, 81b and 82a, 82b ′ are detachably provided so as to face the front of the vehicle.
- a rearview mirror 90 is rotatably and detachably provided on at least one of the pair of left and right foot guard support members 7la and 71b (in this example, the left foot guard support member 71a).
- the pair of left and right foot guard support members 7la and 71b in this example, the left foot guard support member 71a.
- FIG. 14 is an exploded perspective view for explaining a state in which the vehicle width lamp 81a, the direction indicator lamp 82a, and the back mirror 90 are installed on the left foot guard support member 71a. It should be noted that the installation state of the width lamp 81b and the direction indicator lamp 82b on the right foot guard support member 71b is substantially the same except that it is symmetrical with respect to the installation state shown in FIG. This is shown as a representative in Fig. 14, and the corresponding reference symbols are shown in parentheses in the figure.
- the foot guard support member 71a (71b) is a portion provided with a vehicle width light 81a (81b) and a direction indicator light 82a (82b), and is perpendicular to the vehicle (
- Mounting brackets 72a (72b) are formed in the body at the corners in the Z direction in the figure and the vehicle width direction (Y direction in the figure).
- the mounting bracket 72a (72b) includes an extending portion 72a '(72b') extending in a predetermined direction (in this example, substantially above the vertical direction Z with respect to the vehicle), and the extending portion 72a '( 72b ′) and a bent portion 72a ′′ (72b ”) bent substantially forward at a right angle to the front of the vehicle.
- the bent portion 72a” (72b ”) includes a vehicle width light 81a (81b) and
- the direction indicator lamps 82a (82b) are arranged side by side so that one (in this example, the vehicle width lamp 81a (81b)) is arranged inside and the other (in this example, the direction indicator lamp 82a (82b)) is arranged outside. It is attached by bolts BT via a support member 83a (83b) that supports the vehicle width lamp 81a (81b) and the direction indicator lamp 82a (82b).
- connection of vehicle width lamp 81a (81b) and direction indicator lamp 82a (82b) The connector C is connected to a connection connector (not shown) for energizing the vehicle width lamp and the direction indicator lamp built in the foot guard support member 71a (71b).
- the knock mirror 90 includes a mirror portion 91, a mirror support member 92, and a mirror mounting member 93.
- the mirror support member 92 is obtained by bending a rod-like member extending in a predetermined direction (Z direction in the figure) at a substantially right angle at one position in the middle and bending at a substantially right angle so as to return to the direction Z at another position.
- the mirror mounting member 93 is provided with a concave portion 931 extending in a predetermined direction Z formed along the outer peripheral surface of the mirror support member 92 at the central portion of the plate-like member in the vehicle width direction.
- the protrusion 92 is engaged with the elongated hole 931 ′ so as to cover the mirror support member 92 that supports the mirror portion 91 in the recessed portion 931 of the mounting member 93 having the recess 931 provided with the elongated hole 931 ′.
- the mounting member 93 is attached to the extension portion 72a 'of the mounting bracket 72a of the left foot guard support member 71a with a bolt BT, so that the mirror support member 92 is rotated to the mounting bracket 72a. It can be provided freely and detachably.
- the pair of left and right foot guard support portions 71a, 71b provided in front of the vehicle with respect to the driver's seat 11 are provided with the vehicle width lights 81a, 81b and the direction indicator lights 82a, 82b is provided so that these light-emitting portions 81a ', 81b, and 82a, 82b' face the front of the vehicle.
- the third party has vehicle width lights 81a, 81b and directions provided so that the light emitting portions 81a ', 81b' and 82a ', 82b' face the front of the vehicle with respect to the driver's seat 11.
- the light from the indicator lights 82a and 82b can be visually recognized without being blocked by the driver or the vehicle body, and thus, good visibility for the third-party work vehicle 500 ′ can be obtained.
- vehicle width lights 81a, 81b provided so that the light emitting portions 81a ′, 81b ′ and 82a ′, 82b ′ are directed forward of the vehicle with respect to the driver's seat 11 as a reference.
- direction indicator lights 82a and 82b are emitted from the front of the vehicle further forward with reference to the driver's seat 11, so that the driver's rear view (e.g.
- Vehicle 500 ' The field of view (when driving) is of course good, and the light emitted further forward from the vehicle width lights 81a, 81b and the direction indicator lights 82a, 82b is directed forward by the driver. Therefore, the driver's front view (for example, the view when the driver steers the work vehicle 500 ′ while facing the front) is good.
- the vehicle width lights 81a, 81b and the direction indicator lights 82a, 82b are detachable, so that the vehicle width lights 81a, 81b and the direction indicator lights 82a, 82b according to the specifications of the work vehicle 500 'are installed.
- the mounting brackets 72a and 72b in the foot guard support portions 71a and 71b can be easily accommodated by attaching / detaching the support members 83a and 83b that support the vehicle width lights 81a and 81b and the direction indicator lights 82a and 82b. .
- the rear foot mirror 90 is provided on the left foot guard support member 71a, and there is no need to provide a separate attachment member for attaching the knock mirror 90. Therefore, the number of parts can be reduced by that amount, and the cost can be reduced. It can be kept low. Further, since the knock mirror 90 is rotatably provided on the left foot guard support member 71a, the rearview mirror 9 is not protruded outward (specifically, it does not get in the way during mowing, etc.) By rotating it, the knock mirror 9 can be stored in a compact manner, and in particular, it can work effectively even in a narrow space such as a barn. Further, since the knock mirror 90 is detachably provided on the left foot guard support member 71a, it can be easily replaced between the one side 71a and the other side 71b of the left and right foot guards.
- the portions of the foot guard support members 71a and 71b where the vehicle width lights 81a and 81b and the direction indicator lights 82a and 82b are provided also serve as extensions 72a 'and 72b' and bent portions 72a "and 72b".
- the width lights 81a, 81b and the direction indicator lights 82a, 82b are arranged at the bent portions 72a ", 72b"
- the width lights of the foot guard support members 71a, 71b 81a, 81b and the direction indicator lamps 82a, 82b can be reinforced, and when the extension mirror 72a 'is provided with the knock mirror 90 as in this example, the vibration from the work vehicle 500' Transmission to the rearview mirror 90 provided in the extending portion 72a ′ can be suppressed.
- a pair of left and right rear width lights 610 and direction indicator lights 620 are provided at the rear of the vehicle with reference to the driver's seat 11.
- the light emitting parts 61 ′ and 62 ′ of the rear vehicle width light 610 and the direction indicator light 620 are set to face the rear of the vehicle. It may be taken.
- the vehicle width light 610 and the direction indicator are arranged so that the direction indicator light 620 and the vehicle width light 610 are vertically arranged on the safety frame 150 provided at the rear of the vehicle with respect to the driver's seat 11. It is mounted via a mounting member 60 that supports the lamp 620.
- the safety frame 150 protects the driver when the work vehicle 500 ′ falls down.
- the safety frame 150 includes the first safety frame 151 provided with the rear width lamp 610 and the direction indicator lamp 620, and the first safety frame 151.
- the safety frame 151 is composed of a second safety frame 152 that is provided to swing around the vehicle width direction axis. When working, it is extended upward and fixed.
- the frame 152 can be folded to the vehicle width lamp 610 and the direction indicator lamp 620 side (vehicle rear side). In this way, when the second safety frame 152 is folded with respect to the first safety frame 151, the folded safety frame 150 protrudes as far as possible from the work vehicle 500 ′! /
- the distance from the rotation fulcrum at one end of the safety frame 152 to the other end is made substantially equal to the distance from the rotation fulcrum at one end of the first safety frame 151 to the other end.
- the corner portion 152 ′ of the second safety frame 152 is curved to form an arc shape as shown in FIG. It is configured as follows. By doing so, the safety frame 150 when folded can be compacted so that it does not protrude upward from the work vehicle 500 'as much as possible, and the second safety frame 152 does not collide with the vehicle width light 610 and the direction indicator light 620. Can be.
- FIGS. 16 and 17 are views showing a state in which the vehicle width lights 81a and 81b and the direction indicator lights 82a and 82b are provided in the work vehicle 500 ”including the cabin 1000 that covers the periphery of the driver's seat.
- 16 is a schematic side view thereof
- Fig. 17 is a schematic front view thereof, which are substantially the same as the work vehicle 500 'shown in Figs.
- the same reference numerals are given to some of the members having an action.
- the width lights 81a and 81b and the direction indicator lights 82a and 82b are applied to the left and right cabin frames 30 (in this example, both ends of the air cut plate 30 'of the horizontal frame).
- the light emitting parts 81a ', 81b' and 82a ', 82b' are detachable so as to face the front of the vehicle.
- the air cut plate 31, the width lights 81a, 81b, and the direction indicators 82a, 82b As with the mounting of the foot guard support members 71a, 71b and the vehicle width lights 81a, 81b and the direction indicators 82a, 82b, the mounting brackets 72a, 72b are used.
- the rigidity of the air cut plate 30' is reduced. Can be increased.
- a strong mounting bracket may be provided on the cabin frame 30 so as to protrude in the vehicle width direction, and the rearview mirror may be provided so as to be rotatable and Z or detachable as shown in FIG.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Braking Elements And Transmission Devices (AREA)
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05780503.8A EP1788289B1 (en) | 2004-09-03 | 2005-08-17 | Traveling operation device and work vehicle |
US11/574,670 US7721866B2 (en) | 2004-09-03 | 2005-08-17 | Traveling operation device and working vehicle |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004256774A JP4693090B2 (ja) | 2004-09-03 | 2004-09-03 | 走行操作装置 |
JP2004-256774 | 2004-09-03 | ||
JP2004256803A JP4674845B2 (ja) | 2004-09-03 | 2004-09-03 | 走行操作装置 |
JP2004-256803 | 2004-09-03 | ||
JP2004263957A JP2006076487A (ja) | 2004-09-10 | 2004-09-10 | 作業車輌 |
JP2004-263957 | 2004-09-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006027940A1 true WO2006027940A1 (ja) | 2006-03-16 |
Family
ID=36036228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/015003 WO2006027940A1 (ja) | 2004-09-03 | 2005-08-17 | 走行操作装置及び作業車両 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7721866B2 (ja) |
EP (1) | EP1788289B1 (ja) |
WO (1) | WO2006027940A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010017988B4 (de) * | 2010-04-21 | 2012-08-23 | Al-Ko Kober Ag | Aufsitzmäher mit Fußbedienelementen zur Steuerung der Fahrtgeschwindigkeit und zur Betätigung einer Bremse |
EP3053810B1 (en) * | 2013-09-30 | 2018-02-21 | Yanmar Co., Ltd. | Work vehicle |
CN111956406B (zh) * | 2020-08-28 | 2022-06-17 | 上海交通大学医学院附属新华医院 | 一种儿童多功能轮椅 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07323762A (ja) * | 1994-06-01 | 1995-12-12 | Yanmar Agricult Equip Co Ltd | 無段変速式走行車輌の急発進防止機構 |
JPH10249119A (ja) | 1997-03-18 | 1998-09-22 | Hokkaido Electric Power Co Inc:The | 脱塵装置およびその運転方法 |
JPH11310159A (ja) | 1998-04-28 | 1999-11-09 | Kubota Corp | 作業車の後部フェンダ支持構造 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1427171A (en) * | 1973-02-23 | 1976-03-10 | Shaw & Sons Ltd Joshua | Wheeled vehicles incorporating hydrostatic transmission window frames and parts therefor |
US4496035A (en) * | 1982-06-21 | 1985-01-29 | Deere & Company | Neutralizing mechanism for a hydrostatic transmission |
US5022477A (en) * | 1986-08-27 | 1991-06-11 | Deere & Company | System and method for controlling the ground speed and enhancing the maneuverability of an off-road vehicle |
JPH0215658A (ja) | 1988-07-01 | 1990-01-19 | Mitsubishi Electric Corp | 半導体装置 |
JP3844838B2 (ja) | 1997-03-05 | 2006-11-15 | 株式会社 神崎高級工機製作所 | 作業車の走行操作装置 |
-
2005
- 2005-08-17 EP EP05780503.8A patent/EP1788289B1/en not_active Expired - Fee Related
- 2005-08-17 WO PCT/JP2005/015003 patent/WO2006027940A1/ja active Application Filing
- 2005-08-17 US US11/574,670 patent/US7721866B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07323762A (ja) * | 1994-06-01 | 1995-12-12 | Yanmar Agricult Equip Co Ltd | 無段変速式走行車輌の急発進防止機構 |
JPH10249119A (ja) | 1997-03-18 | 1998-09-22 | Hokkaido Electric Power Co Inc:The | 脱塵装置およびその運転方法 |
JPH11310159A (ja) | 1998-04-28 | 1999-11-09 | Kubota Corp | 作業車の後部フェンダ支持構造 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1788289A4 |
Also Published As
Publication number | Publication date |
---|---|
EP1788289A1 (en) | 2007-05-23 |
US7721866B2 (en) | 2010-05-25 |
EP1788289B1 (en) | 2016-01-20 |
EP1788289A4 (en) | 2014-06-11 |
US20080092688A1 (en) | 2008-04-24 |
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