US20020011375A1 - Working vehicle with a PTO apparatus - Google Patents
Working vehicle with a PTO apparatus Download PDFInfo
- Publication number
- US20020011375A1 US20020011375A1 US09/789,483 US78948301A US2002011375A1 US 20020011375 A1 US20020011375 A1 US 20020011375A1 US 78948301 A US78948301 A US 78948301A US 2002011375 A1 US2002011375 A1 US 2002011375A1
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- Prior art keywords
- vehicle body
- pto apparatus
- pto
- transmission
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 230000005540 biological transmission Effects 0.000 claims abstract description 65
- 230000007246 mechanism Effects 0.000 claims abstract description 42
- 230000036544 posture Effects 0.000 claims abstract description 4
- 239000000428 dust Substances 0.000 claims description 25
- 244000025254 Cannabis sativa Species 0.000 description 29
- 238000010276 construction Methods 0.000 description 5
- 239000002184 metal Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 238000003971 tillage Methods 0.000 description 1
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Classifications
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- 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
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/28—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of power take-off
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B71/00—Construction or arrangement of setting or adjusting mechanisms, of implement or tool drive or of power take-off; Means for protecting parts against dust, or the like; Adapting machine elements to or for agricultural purposes
- A01B71/06—Special adaptations of coupling means between power take-off and transmission shaft to the implement or machine
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- 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
- B60Y2200/223—Ridable lawn mowers
Definitions
- This invention relates to a working vehicle having a propelling transmission for transmitting power of an engine to drive wheels, the propelling transmission being attached to body frames as offset to one side transversely of a vehicle body to produce a utility space in the other side, with a PTO apparatus for transmitting power supplied from the propelling transmission to an external working implement.
- a tractor which is a typical example of working vehicle may be used as a cultivating machine with a rotary plow connected to the rear of a tractor body.
- the tractor may be used as a grass cutting machine or a dust collecting machine with a mower unit or a dust collector connected to the vehicle body between front and rear wheels, and a grass catcher or a dust catcher attached to the rear of the vehicle body.
- a receiving portion of the grass catcher or dust catcher is connected to a discharge portion of the mower unit or dust collector through a transmitting duct.
- a blower is driven to transmit grass clippings or dust to the grass catcher or dust catcher.
- the transmitting duct When the tractor is constructed to act as a grass cutting machine or dust collecting machine, the transmitting duct usually extends from the mower unit or dust collector outwardly of the tractor body from between the front and rear wheels and to the grass catcher or dust catcher. Thus, the transmitting duct provides an elongated transmission path with many bends. This results in grass or dust transmitting difficulties and enlarged transverse dimensions of the tractor body to encumber driving.
- the object of this invention is to provide a working vehicle free from inconveniences in power transmission or grass or dust transmission when converted to a cultivating machine with an external working implement such as a plowing implement attached, or when converted to a grass cutting or dust collecting machine with an external working implement such as a mower unit or dust collector attached.
- a working vehicle having a propelling transmission as set forth at the outset hereof comprising a PTO apparatus for transmitting power supplied from the propelling transmission to an external working implement
- the PTO apparatus includes an input shaft extending longitudinally of the vehicle body and drivably connected to the propelling transmission, and an output shaft extending parallel to and spaced from the input shaft and drivingly connected to the external working implement; and a mounting mechanism for attaching the PTO apparatus to vehicle body frames, the mounting mechanism selectively fixing the PTO apparatus to at least two pivotal postures about the input shaft.
- an optimal position may be selected for the output shaft of the PTO apparatus according to an external working implement to be attached. Moreover, since the position of the input shaft is unchanged, a construction is employed to turn the PTO apparatus about the input shaft, which realizes a simplified mounting mechanism.
- the mounting mechanism includes a support platform for detachably attaching the PTO apparatus, and a mounting base connected to the support platform and detachably attached to the vehicle body frames.
- the PTO apparatus may be fixed reliably by using a support platform suitable to each different pivotal posture of the PTO apparatus.
- the support platform may include a first support plate for supporting the PTO apparatus with the output shaft offset to the one side transversely of the vehicle body, and a second support plate for supporting the PTO apparatus with the output shaft in a substantially middle position transversely of the vehicle body. This construction provides two typical positions of the output shaft in a simple way.
- the PTO apparatus when the PTO apparatus is attached to the vehicle body frames by using the first support plate, the PTO apparatus as a whole is disposed in the side to which the propelling transmission is offset, a dust transmitting duct extending longitudinally of the vehicle body through the utility space.
- the PTO apparatus is offset to the same side to which the propelling transmission is offset, to produce a sufficient space between one of the right and left rear wheels and the power takeoff apparatus to accommodate the dust transmitting duct.
- the transmitting duct extending between the right and left rear wheels can quickly and efficiently transmit grass clippings or dust to a grass catcher or a dust catcher.
- the machine is easy to drive since the overall transverse dimensions are not increased.
- a power transmission line extends substantially linearly with respect to a transverse direction of the vehicle body, from the output shaft of the PTO apparatus to a plowing implement acting as the external working implement.
- FIG. 1 is a side elevation of a riding lawn mower
- FIG. 2 is a plan view of a rear portion of the lawn mower
- FIG. 3 is a rear view of the lawn mower
- FIG. 4 is a side view of a power takeoff portion of the lawn mower
- FIG. 5 is a rear view of the power takeoff portion
- FIG. 6 is a perspective view of a mounting member and a grass catcher of the lawn mower
- FIG. 7 is a side view in vertical section of a power takeoff apparatus
- FIG. 8 is a side elevation of a riding cultivating machine
- FIG. 9 is a plan view of a power takeoff portion of the cultivating machine.
- FIG. 10 is a side view of the power takeoff portion of the cultivating machine
- FIG. 11 is a rear view of the power takeoff portion of the cultivating machine.
- FIG. 12 is a perspective view of a mounting member of the cultivating machine.
- a riding tractor which is one example of working vehicle, includes a pair of right and left, freely rotatable and dirigible front wheels 1 and a pair of right and left rear drive wheels 2 supporting a vehicle body.
- a motor section having an engine 3 is disposed on a front portion of the vehicle body. Rearwardly of the motor section is a driving platform including a steering wheel 4 for steering the front wheels 1 , and a driver's seat 5 .
- This tractor may be converted to a riding grass cutting machine as shown in FIG. 1 and a riding rotary cultivating machine as shown in FIG. 8.
- the engine 3 is disposed between the right and left front wheels 1
- a propelling transmission 7 is disposed between the right and left rear wheel 2 .
- Both the engine 3 and propelling transmission 7 are disposed between a pair of right and left body frames 8 and supported by the body frames 8 .
- the propelling transmission 7 is offset toward one of the rear wheels 2 .
- An output shaft at the rear end of engine 3 is connected to an input shaft 7 a of propelling transmission 7 through a rotary transmission shaft 6 .
- the propelling transmission 7 includes a hydraulic stepless transmission 7 b having a hydraulic pump driven by the input shaft 7 a and a hydraulic motor driven by the hydraulic pump.
- the propelling transmission 7 transmits torque output of stepless transmission 7 b through right and left output shafts 7 d of a rear differential mechanism 7 c to gear transmission mechanisms in rear wheel drive cases 9 .
- the gear transmission mechanisms transmit the power to rear axles 2 a disposed above. That is, the stepless transmission 7 b switches torque received from the engine 3 to forward drive or backward drive, and steplessly changes the speed of forward drive or backward drive.
- the drive is then transmitted through the output shafts 7 d of rear differential mechanism 7 c to the right and left rear axles 2 a to drive the right and left rear wheels 2 .
- a power supply shaft 7 e projects rearward from a casing of stepless transmission 7 b of input shaft 7 a to act as a power supply portion to drive an external working implement.
- FIGS. 1 through 7 The tractor converted to a grass cutting machine is shown in FIGS. 1 through 7.
- a mower unit 15 is vertically movably connected to the vehicle body between the front and rear wheels through a link mechanism including front pivot links 11 having forward ends thereof pivotally connected to support elements arranged at front end positions of the vehicle body, and rear pivot links 13 having forward ends thereof pivotally connected to link brackets 12 fixed to right and left body frames 8 between the front and rear wheels.
- Torque of an output shaft at the front of engine 3 is transmitted to an input case 15 b on the upper surface of a mower deck 15 a of mower unit 15 through a belt type transmission mechanism 16 and a rotary shaft 17 .
- a lift arm 20 is connected to the rear end of left pivot link 13 through a suspender rod 19
- a lift arm 20 is connected to the rear end of right pivot link 13 through a suspender rod 19
- the lift arms 20 are interconnected by a rotatable lift arm support shaft 21 extending between the right and left body frames 8 .
- a piston of a lift cylinder 22 having a tube end supported by one of the body frames 8 .
- the lift cylinder 22 rotates the lift arm support shaft 21 to swing the right and left lift arms 20 up and down.
- the right and left rear pivot links 13 are thereby swung up and down relative to the body frames 8 to raise or lower the mower unit 15 .
- a grass catcher 25 is attached to the rear of the vehicle body, and a lifting device 26 is provided which has an upper end thereof connected to a receiving portion of grass catcher 25 , and a lower end having a collecting blower 27 .
- the collecting blower 27 is connected through a transmitting duct 28 to a grass discharge portion of mower deck 15 a of mower unit 15 . Power is transmitted from the power supply shaft 7 e of propelling transmission 7 to the collecting blower 27 .
- the mower unit 15 cuts grass with a plurality of cutting blades 15 c rotating in the mower deck 15 a and feeds grass clippings into the transmitting duct 28 along with air flows generated by the rotation of cutting blades 15 c .
- the grass clippings move through the transmitting duct 28 and lifting device 26 to the grass catcher 25 to accumulate in the grass catcher 25 .
- a first mounting mechanism (mounting mechanism for the grass cutting machine) 30 includes an outer frame 31 formed of sheet metal members combined into a rectangular shape, seen in the fore and aft direction of the vehicle body, a vertical frame member 32 disposed inside the outer frame 31 and interconnecting middle positions of an upper frame portion and a lower frame portion of outer frame 31 , and a support plate 33 acting as a support platform formed of a sheet metal member extending between the vertical frame member 32 and a side frame portion of outer frame 31 .
- the outer frame 31 has opposite side plates acting as mounting bases 34 for connecting the first mounting mechanism 30 to the body frames 8 .
- Both right and left mounting bases 34 are detachably connected to the body frames 8 by connecting bolts 36 attached to the outer frame 31 and body frames 8 through a plurality of bolt holes 35 formed in the mounting bases 34 .
- the first mounting mechanism 30 is detachably attached, through the mounting bases 34 at the opposite sides of outer frame 31 , to inward surfaces adjacent the rear ends of right and left body frames 8 .
- the grass catcher 25 is supported by the vehicle body, with right and left support rods 25 a of grass catcher 25 connected to the outer frame 31 of first mounting mechanism 30 .
- the lower end portion of lifting device 26 is supported by the vehicle body, with support rods 27 a extending from a blower case of lifting device 26 being connected to the outer frame 31 and vertical frame member 32 of first mounting mechanism 30 .
- a power takeoff (PTO) apparatus 40 includes an input shaft 42 projecting from one end of a power takeoff (PTO) case 41 , and a tubular power takeoff (PTO) shaft 43 projecting in the opposite direction from the other end.
- the power takeoff apparatus 40 is detachably fixed to the support plate 33 by fastening the power takeoff case 41 of power takeoff apparatus 40 to the support plate 33 with a plurality of mounting bolts 44 acting also to fastening a front surface and a rear surface of power takeoff case 41 together.
- a power transmission line from the power supply shaft 7 e of propelling transmission 7 extends to the collecting blower 27 while being offset to one side transversely of the vehicle body between the right and left rear wheels 2 .
- a space 28 S is formed in the other side transversely of the vehicle body between the right and left rear wheels 2 for accommodating the transmitting duct 28 .
- the power takeoff apparatus 40 includes the power takeoff case 41 having the input shaft 42 and power takeoff shaft 43 , and a transmission control mechanism 45 disposed in the power takeoff case 41 for interlocking the input shaft 42 to the power takeoff shaft 43 .
- the transmission control mechanism 45 includes a hydraulically operable clutch mechanism 48 switchable between an engaged position and a disengaged position by a clutch lever 46 pivotably attached to a rear of the portion of power takeoff case 41 having the input shaft 42 to switch a valve 47 , and a gear transmission mechanism 49 having a plurality of transmission gears for decelerating torque of an output shaft 48 a of clutch mechanism 48 for transmission to the power takeoff shaft 43 .
- the entire power takeoff apparatus 40 is offset transversely of the vehicle body toward where the propelling transmission 7 is disposed, by the positioning action of first mounting mechanism 30 .
- a utility space 28 S is formed between the power takeoff apparatus 40 and one of the rear wheels 2 to accommodate the transmitting duct 28 . Consequently, the transmitting duct 28 may be disposed to extend through the space 28 S between the right and left rear wheels 2 to connect the mowing device 15 and lifting device 26 .
- the input shaft 42 of power takeoff apparatus 40 projects forward from the power takeoff case 41 to be placed rearwardly of and coaxial with the power supply shaft 7 e of propelling transmission 7 by the positioning action of the first mounting mechanism 30 .
- the power supply portion 7 e and input shaft 42 are connected to each other to be separable and rotatable together by a coupling 42 a .
- This coupling has a forward end thereof fitted on the power supply shaft 7 e to be separable and rotatable together through a spline engagement, and a rear end fitted on the input shaft 42 to be separable and rotatable together through a spline engagement.
- the power takeoff shaft 43 is disposed rearwardly of the propelling transmission 7 and offset to one side from the middle position transversely of the vehicle body, and projects rearward from the power takeoff case 41 .
- a rotary transmission shaft 38 rotatably supported by a boss 37 a of a support 37 extending from the outer frame 31 of first mounting mechanism 30 and having a forward end connected to the power takeoff shaft 43 through a spline engagement to be rotatable together is drivingly interlocked by a transmission belt 39 to a blower drive shaft 27 b projecting rearward from the blower case of collecting blower 27 .
- the power of power supply shaft 7 e of propelling transmission 7 is transmitted by the power takeoff apparatus 40 laterally of the transmitting duct 28 rearwardly of the vehicle body, and transmitted from the power takeoff shaft 43 of power takeoff apparatus 40 to the blower drive shaft 27 b to drive the collecting blower 27 .
- FIG. 8 shows the tractor converted to a cultivating machine.
- a second mounting mechanism 50 includes an outer frame 51 formed of sheet metal members combined into a rectangular shape, seen in the fore and aft direction of the vehicle body, a vertical frame member 52 disposed inside the outer frame 51 and interconnecting end positions of an upper frame portion and a lower frame portion, and a second support plate 53 acting as a support platform formed of a sheet metal member extending between the vertical frame member 52 and a side frame portion of outer frame 51 .
- the second mounting mechanism 50 has a top link bracket 54 attached to an middle inward surface of the upper frame portion of outer frame 51 , and a lift arm support shaft 55 rotatably supported by upper ends of right and left side frame portions of outer frame 51 .
- Proximal ends of lift arms 56 are rigidly connected to opposite ends of the lift arm support shaft 55 .
- Lower link support shafts 57 are attached to inward surfaces at lower ends of right and left side frame portions of outer frame 51 .
- the two side plates of outer frame 51 act as mounting bases 58 for connecting the second mounting mechanisms 50 to the body frames 8 .
- Both right and left mounting bases 58 are detachably connected to the body frames 8 by the connecting bolts 36 attached to the outer frame 51 and body frames 8 through a plurality of bolt holes 58 a formed in the mounting bases 34 .
- the second mounting mechanism 50 is detachably attached, through the mounting bases 58 of outer frame 31 , to inward surfaces adjacent the rear ends of right and left body frames 8 from which the first mounting mechanism 30 has been detached.
- the second mounting mechanism 50 has, arranged therein the top link bracket 54 , the pair of right and left lift arms 56 and the pair of right and left lower link support shafts 57 .
- a top link 60 having a forward end thereof pivotally connected to the top link bracket 54 , and the pair of right and left lower links 61 having forward ends thereof pivotally connected to the right and left lower link support shafts 57 , are pivotally connected at lower ends thereof to frames 71 of a rotary plow 70 , respectively.
- Lift rods 62 are connected between the right and left lift arms 56 and lower links 61 , respectively.
- the lift arm support shaft 21 of the link mechanism for raising and lowering the mower unit 15 is connected through a link mechanism 63 to a control arm 59 attached to one end of lift arm support shaft 55 .
- the lift arm support shaft 55 is rotated by the lift cylinder 22 , the right and left lift arms 56 are swung vertically to swing the right and left lower links 61 vertically relative to the body frames 8 , thereby vertically moving the plowing implement 70 .
- the power takeoff apparatus 40 is detachably supported by the support platform 53 of the second mounting mechanism 50 by tightening the mounting bolts 44 to connect the power takeoff case 41 of power takeoff apparatus 40 separated from the first mounting mechanism 30 to the rear surface of support platform 53 of the second mounting mechanism 50 . Then, a power transmission line is produced for transmitting power from the power supply shaft 7 e of propelling transmission 7 to the plowing implement 70 through the power takeoff shaft 43 disposed by the power takeoff apparatus 40 in the rear middle position transversely of vehicle body, and through a rotary shaft 64 .
- the input shaft 42 of power takeoff apparatus 40 projects forward from the power takeoff case 41 to be placed rearwardly of and coaxial with the power supply shaft 7 e of propelling transmission 7 by the positioning action of the second mounting mechanism 50 .
- the input shaft 42 is connected to the power supply shaft 7 e to be separable and rotatable together by the coupling 42 a .
- the power takeoff shaft 43 is disposed rearwardly of the propelling transmission 7 and in the middle position transversely of the vehicle body, and projects rearward from the power takeoff case 41 .
- the power takeoff shaft 43 is connected to an input shaft of plowing implement 70 through the rotary shaft 64 with a universal joint 64 a disposed in between.
- the torque of power supply shaft 7 e of propelling transmission 7 may be taken out by the power takeoff apparatus 40 in the middle position transversely of the vehicle body.
- the power is transmitted from the power takeoff shaft 43 of power takeoff apparatus 40 through the rotary shaft 64 to the plowing implement 70 to drive tillage tines.
- the power transmission line from the power takeoff shaft 43 through the rotary shaft 64 to the plowing implement 70 extends linearly in the fore and aft direction of the vehicle body in plan view.
- the tractor may be converted not only to a grass cutting machine and a rotary cultivating machine, but also to a dust collecting machine with a dust collector attached to the vehicle body between the front and rear wheels, and a dust catcher disposed at the rear of the vehicle body to receive and store dust from the dust collector.
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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Abstract
A working vehicle having a propelling transmission for transmitting power of an engine to drive wheels, the propelling transmission being attached to body frames as offset to one side transversely of a vehicle body to produce a utility space in the other side, with a PTO apparatus for transmitting power supplied from the propelling transmission to an external working implement. The PTO apparatus (40) includes an input shaft (42) extending longitudinally of the vehicle body and drivably connected to the propelling transmission, and an output shaft (43) extending parallel to and spaced from the input shaft and drivingly connected to the external working implement. A mounting mechanism (30; 50) is provided to attach the PTO apparatus to vehicle body frames (8). The mounting mechanism selectively fixes the PTO apparatus to at least two pivotal postures about the input shaft.
Description
- 1. Field of the Invention
- This invention relates to a working vehicle having a propelling transmission for transmitting power of an engine to drive wheels, the propelling transmission being attached to body frames as offset to one side transversely of a vehicle body to produce a utility space in the other side, with a PTO apparatus for transmitting power supplied from the propelling transmission to an external working implement.
- 2. Description of the Related Art
- The above working vehicle, when an external working implement such as a rotary plow is connected to the rear of the vehicle body, transmits power supplied from the propelling transmission to the external working implement through the PTO apparatus.
- A tractor which is a typical example of working vehicle may be used as a cultivating machine with a rotary plow connected to the rear of a tractor body. Alternatively, the tractor may be used as a grass cutting machine or a dust collecting machine with a mower unit or a dust collector connected to the vehicle body between front and rear wheels, and a grass catcher or a dust catcher attached to the rear of the vehicle body. A receiving portion of the grass catcher or dust catcher is connected to a discharge portion of the mower unit or dust collector through a transmitting duct. A blower is driven to transmit grass clippings or dust to the grass catcher or dust catcher.
- When the tractor is constructed to act as a cultivating machine, a power transmission line from the propelling transmission through the PTO apparatus to the rotary plow tends to bend to a great extent three-dimensionally with the rotary plow moving up and down. As a result, transmission noise tends to be generated from connections in the power transmission line.
- When the tractor is constructed to act as a grass cutting machine or dust collecting machine, the transmitting duct usually extends from the mower unit or dust collector outwardly of the tractor body from between the front and rear wheels and to the grass catcher or dust catcher. Thus, the transmitting duct provides an elongated transmission path with many bends. This results in grass or dust transmitting difficulties and enlarged transverse dimensions of the tractor body to encumber driving.
- The object of this invention is to provide a working vehicle free from inconveniences in power transmission or grass or dust transmission when converted to a cultivating machine with an external working implement such as a plowing implement attached, or when converted to a grass cutting or dust collecting machine with an external working implement such as a mower unit or dust collector attached.
- The above object is fulfilled, according to this invention, by a working vehicle having a propelling transmission as set forth at the outset hereof, comprising a PTO apparatus for transmitting power supplied from the propelling transmission to an external working implement, the PTO apparatus includes an input shaft extending longitudinally of the vehicle body and drivably connected to the propelling transmission, and an output shaft extending parallel to and spaced from the input shaft and drivingly connected to the external working implement; and a mounting mechanism for attaching the PTO apparatus to vehicle body frames, the mounting mechanism selectively fixing the PTO apparatus to at least two pivotal postures about the input shaft.
- With this construction, an optimal position may be selected for the output shaft of the PTO apparatus according to an external working implement to be attached. Moreover, since the position of the input shaft is unchanged, a construction is employed to turn the PTO apparatus about the input shaft, which realizes a simplified mounting mechanism.
- In a preferred embodiment of this invention, the mounting mechanism includes a support platform for detachably attaching the PTO apparatus, and a mounting base connected to the support platform and detachably attached to the vehicle body frames. The PTO apparatus may be fixed reliably by using a support platform suitable to each different pivotal posture of the PTO apparatus. As a particularly preferred embodiment, the support platform may include a first support plate for supporting the PTO apparatus with the output shaft offset to the one side transversely of the vehicle body, and a second support plate for supporting the PTO apparatus with the output shaft in a substantially middle position transversely of the vehicle body. This construction provides two typical positions of the output shaft in a simple way.
- In another preferred embodiment of this invention, when the PTO apparatus is attached to the vehicle body frames by using the first support plate, the PTO apparatus as a whole is disposed in the side to which the propelling transmission is offset, a dust transmitting duct extending longitudinally of the vehicle body through the utility space. In this construction, the PTO apparatus is offset to the same side to which the propelling transmission is offset, to produce a sufficient space between one of the right and left rear wheels and the power takeoff apparatus to accommodate the dust transmitting duct. Thus, when the working vehicle is converted to a grass cutting machine or a dust collecting machine, the transmitting duct extending between the right and left rear wheels can quickly and efficiently transmit grass clippings or dust to a grass catcher or a dust catcher. The machine is easy to drive since the overall transverse dimensions are not increased.
- In a further preferred embodiment of this invention, when the PTO apparatus is attached to the vehicle body frames by using the second support plate, a power transmission line extends substantially linearly with respect to a transverse direction of the vehicle body, from the output shaft of the PTO apparatus to a plowing implement acting as the external working implement. With this construction, considering that the plowing implement apparatus usually has a power input portion thereof located in the middle position, no great three-dimensional bending occurs with the power transmission line from the output shaft of the PTO apparatus to the plowing implement. Consequently, when the working vehicle is converted to a cultivating machine, connections in the power transmission line are bent to a less degree, thereby hardly producing transmission noise, even when the plowing implement moves up and down.
- Other features and advantages of this invention will be apparent from the following description of the embodiment to be taken with reference to the drawings.
- FIG. 1 is a side elevation of a riding lawn mower;
- FIG. 2 is a plan view of a rear portion of the lawn mower;
- FIG. 3 is a rear view of the lawn mower;
- FIG. 4 is a side view of a power takeoff portion of the lawn mower;
- FIG. 5 is a rear view of the power takeoff portion;
- FIG. 6 is a perspective view of a mounting member and a grass catcher of the lawn mower;
- FIG. 7 is a side view in vertical section of a power takeoff apparatus;
- FIG. 8 is a side elevation of a riding cultivating machine;
- FIG. 9 is a plan view of a power takeoff portion of the cultivating machine;
- FIG. 10 is a side view of the power takeoff portion of the cultivating machine;
- FIG. 11 is a rear view of the power takeoff portion of the cultivating machine; and
- FIG. 12 is a perspective view of a mounting member of the cultivating machine.
- As shown in FIG. 1, a riding tractor, which is one example of working vehicle, includes a pair of right and left, freely rotatable and dirigible
front wheels 1 and a pair of right and leftrear drive wheels 2 supporting a vehicle body. A motor section having anengine 3 is disposed on a front portion of the vehicle body. Rearwardly of the motor section is a driving platform including asteering wheel 4 for steering thefront wheels 1, and a driver'sseat 5. - This tractor may be converted to a riding grass cutting machine as shown in FIG. 1 and a riding rotary cultivating machine as shown in FIG. 8.
- As shown in FIGS. 1, 2 and3, the
engine 3 is disposed between the right and leftfront wheels 1, and apropelling transmission 7 is disposed between the right and leftrear wheel 2. Both theengine 3 andpropelling transmission 7 are disposed between a pair of right andleft body frames 8 and supported by thebody frames 8. Thepropelling transmission 7 is offset toward one of therear wheels 2. An output shaft at the rear end ofengine 3 is connected to aninput shaft 7 a ofpropelling transmission 7 through arotary transmission shaft 6. - The
propelling transmission 7 includes a hydraulicstepless transmission 7 b having a hydraulic pump driven by theinput shaft 7 a and a hydraulic motor driven by the hydraulic pump. Thepropelling transmission 7 transmits torque output ofstepless transmission 7 b through right andleft output shafts 7 d of a reardifferential mechanism 7 c to gear transmission mechanisms in rearwheel drive cases 9. The gear transmission mechanisms transmit the power to rearaxles 2 a disposed above. That is, thestepless transmission 7 b switches torque received from theengine 3 to forward drive or backward drive, and steplessly changes the speed of forward drive or backward drive. The drive is then transmitted through theoutput shafts 7 d of reardifferential mechanism 7 c to the right and leftrear axles 2 a to drive the right and leftrear wheels 2. - A
power supply shaft 7 e projects rearward from a casing ofstepless transmission 7 b ofinput shaft 7 a to act as a power supply portion to drive an external working implement. - The tractor converted to a grass cutting machine is shown in FIGS. 1 through 7. As shown in FIGS. 1, 2 and so on, a
mower unit 15 is vertically movably connected to the vehicle body between the front and rear wheels through a link mechanism includingfront pivot links 11 having forward ends thereof pivotally connected to support elements arranged at front end positions of the vehicle body, andrear pivot links 13 having forward ends thereof pivotally connected tolink brackets 12 fixed to right andleft body frames 8 between the front and rear wheels. Torque of an output shaft at the front ofengine 3 is transmitted to aninput case 15 b on the upper surface of amower deck 15 a ofmower unit 15 through a belttype transmission mechanism 16 and arotary shaft 17. - As shown in FIGS. 1, 2 and so on, a
lift arm 20 is connected to the rear end ofleft pivot link 13 through asuspender rod 19, and alift arm 20 is connected to the rear end ofright pivot link 13 through asuspender rod 19. Thelift arms 20 are interconnected by a rotatable liftarm support shaft 21 extending between the right and left body frames 8. To this liftarm support shaft 21 is connected, through a swing arm, a piston of alift cylinder 22 having a tube end supported by one of the body frames 8. Thelift cylinder 22 rotates the liftarm support shaft 21 to swing the right and left liftarms 20 up and down. The right and left rear pivot links 13 are thereby swung up and down relative to the body frames 8 to raise or lower themower unit 15. - As shown in FIGS. 2 through 6, a
grass catcher 25 is attached to the rear of the vehicle body, and alifting device 26 is provided which has an upper end thereof connected to a receiving portion ofgrass catcher 25, and a lower end having a collectingblower 27. The collectingblower 27 is connected through a transmittingduct 28 to a grass discharge portion ofmower deck 15 a ofmower unit 15. Power is transmitted from thepower supply shaft 7 e of propellingtransmission 7 to the collectingblower 27. Themower unit 15 cuts grass with a plurality of cuttingblades 15 c rotating in themower deck 15 a and feeds grass clippings into the transmittingduct 28 along with air flows generated by the rotation of cuttingblades 15 c. The grass clippings move through the transmittingduct 28 and liftingdevice 26 to thegrass catcher 25 to accumulate in thegrass catcher 25. - As shown in FIGS. 5, 6 and so on, a first mounting mechanism (mounting mechanism for the grass cutting machine)30 includes an
outer frame 31 formed of sheet metal members combined into a rectangular shape, seen in the fore and aft direction of the vehicle body, avertical frame member 32 disposed inside theouter frame 31 and interconnecting middle positions of an upper frame portion and a lower frame portion ofouter frame 31, and asupport plate 33 acting as a support platform formed of a sheet metal member extending between thevertical frame member 32 and a side frame portion ofouter frame 31. Theouter frame 31 has opposite side plates acting as mountingbases 34 for connecting thefirst mounting mechanism 30 to the body frames 8. Both right and left mountingbases 34 are detachably connected to the body frames 8 by connectingbolts 36 attached to theouter frame 31 and body frames 8 through a plurality of bolt holes 35 formed in the mounting bases 34. - That is, when converting the tractor to the grass cutting machine, as shown in FIGS. 1, 2,4, and 6, the
first mounting mechanism 30 is detachably attached, through the mountingbases 34 at the opposite sides ofouter frame 31, to inward surfaces adjacent the rear ends of right and left body frames 8. Thegrass catcher 25 is supported by the vehicle body, with right and leftsupport rods 25 a ofgrass catcher 25 connected to theouter frame 31 offirst mounting mechanism 30. The lower end portion of liftingdevice 26 is supported by the vehicle body, withsupport rods 27 a extending from a blower case of liftingdevice 26 being connected to theouter frame 31 andvertical frame member 32 offirst mounting mechanism 30. - As shown in FIGS. 2, 4 and5, a power takeoff (PTO)
apparatus 40 includes aninput shaft 42 projecting from one end of a power takeoff (PTO)case 41, and a tubular power takeoff (PTO)shaft 43 projecting in the opposite direction from the other end. Thepower takeoff apparatus 40 is detachably fixed to thesupport plate 33 by fastening thepower takeoff case 41 ofpower takeoff apparatus 40 to thesupport plate 33 with a plurality of mountingbolts 44 acting also to fastening a front surface and a rear surface ofpower takeoff case 41 together. As a result, a power transmission line from thepower supply shaft 7 e of propellingtransmission 7 extends to the collectingblower 27 while being offset to one side transversely of the vehicle body between the right and leftrear wheels 2. A space 28S is formed in the other side transversely of the vehicle body between the right and leftrear wheels 2 for accommodating the transmittingduct 28. - As shown in FIG. 7, the
power takeoff apparatus 40 includes thepower takeoff case 41 having theinput shaft 42 andpower takeoff shaft 43, and atransmission control mechanism 45 disposed in thepower takeoff case 41 for interlocking theinput shaft 42 to thepower takeoff shaft 43. Thetransmission control mechanism 45 includes a hydraulically operable clutch mechanism 48 switchable between an engaged position and a disengaged position by aclutch lever 46 pivotably attached to a rear of the portion ofpower takeoff case 41 having theinput shaft 42 to switch avalve 47, and agear transmission mechanism 49 having a plurality of transmission gears for decelerating torque of anoutput shaft 48 a of clutch mechanism 48 for transmission to thepower takeoff shaft 43. - When the
power takeoff apparatus 40 is supported by thesupport plate 33, the entirepower takeoff apparatus 40 is offset transversely of the vehicle body toward where the propellingtransmission 7 is disposed, by the positioning action offirst mounting mechanism 30. A utility space 28S is formed between thepower takeoff apparatus 40 and one of therear wheels 2 to accommodate the transmittingduct 28. Consequently, the transmittingduct 28 may be disposed to extend through the space 28S between the right and leftrear wheels 2 to connect themowing device 15 and liftingdevice 26. - As seen from FIG. 2, when the
power takeoff apparatus 40 is supported by the support platform (i.e. support plate) 33, theinput shaft 42 ofpower takeoff apparatus 40 projects forward from thepower takeoff case 41 to be placed rearwardly of and coaxial with thepower supply shaft 7 e of propellingtransmission 7 by the positioning action of thefirst mounting mechanism 30. Thepower supply portion 7 e andinput shaft 42 are connected to each other to be separable and rotatable together by acoupling 42 a. This coupling has a forward end thereof fitted on thepower supply shaft 7 e to be separable and rotatable together through a spline engagement, and a rear end fitted on theinput shaft 42 to be separable and rotatable together through a spline engagement. Thepower takeoff shaft 43 is disposed rearwardly of the propellingtransmission 7 and offset to one side from the middle position transversely of the vehicle body, and projects rearward from thepower takeoff case 41. As a result, as shown in FIG. 4, the rear end of arotary transmission shaft 38 rotatably supported by aboss 37 a of asupport 37 extending from theouter frame 31 offirst mounting mechanism 30 and having a forward end connected to thepower takeoff shaft 43 through a spline engagement to be rotatable together is drivingly interlocked by atransmission belt 39 to ablower drive shaft 27 b projecting rearward from the blower case of collectingblower 27. The power ofpower supply shaft 7 e of propellingtransmission 7 is transmitted by thepower takeoff apparatus 40 laterally of the transmittingduct 28 rearwardly of the vehicle body, and transmitted from thepower takeoff shaft 43 ofpower takeoff apparatus 40 to theblower drive shaft 27 b to drive the collectingblower 27. - FIG. 8 shows the tractor converted to a cultivating machine. In the cultivating machine, as shown in FIGS. 9 through 12, a
second mounting mechanism 50 includes anouter frame 51 formed of sheet metal members combined into a rectangular shape, seen in the fore and aft direction of the vehicle body, avertical frame member 52 disposed inside theouter frame 51 and interconnecting end positions of an upper frame portion and a lower frame portion, and asecond support plate 53 acting as a support platform formed of a sheet metal member extending between thevertical frame member 52 and a side frame portion ofouter frame 51. Thesecond mounting mechanism 50 has atop link bracket 54 attached to an middle inward surface of the upper frame portion ofouter frame 51, and a liftarm support shaft 55 rotatably supported by upper ends of right and left side frame portions ofouter frame 51. Proximal ends oflift arms 56 are rigidly connected to opposite ends of the liftarm support shaft 55. Lowerlink support shafts 57 are attached to inward surfaces at lower ends of right and left side frame portions ofouter frame 51. The two side plates ofouter frame 51 act as mountingbases 58 for connecting thesecond mounting mechanisms 50 to the body frames 8. Both right and left mountingbases 58 are detachably connected to the body frames 8 by the connectingbolts 36 attached to theouter frame 51 and body frames 8 through a plurality of bolt holes 58 a formed in the mounting bases 34. - As shown in FIGS. 8, 9 and10, the
second mounting mechanism 50 is detachably attached, through the mountingbases 58 ofouter frame 31, to inward surfaces adjacent the rear ends of right and left body frames 8 from which thefirst mounting mechanism 30 has been detached. Thesecond mounting mechanism 50 has, arranged therein thetop link bracket 54, the pair of right and left liftarms 56 and the pair of right and left lowerlink support shafts 57. Atop link 60 having a forward end thereof pivotally connected to thetop link bracket 54, and the pair of right and leftlower links 61 having forward ends thereof pivotally connected to the right and left lowerlink support shafts 57, are pivotally connected at lower ends thereof toframes 71 of arotary plow 70, respectively. Liftrods 62 are connected between the right and left liftarms 56 andlower links 61, respectively. These components constitute a link mechanism for vertically movably connecting the rotary plow to the vehicle body. - As shown in FIG. 10, the lift
arm support shaft 21 of the link mechanism for raising and lowering themower unit 15 is connected through alink mechanism 63 to acontrol arm 59 attached to one end of liftarm support shaft 55. When the liftarm support shaft 55 is rotated by thelift cylinder 22, the right and left liftarms 56 are swung vertically to swing the right and leftlower links 61 vertically relative to the body frames 8, thereby vertically moving the plowing implement 70. - As shown in FIGS. 8, 9,10 and so on, the
power takeoff apparatus 40 is detachably supported by thesupport platform 53 of thesecond mounting mechanism 50 by tightening the mountingbolts 44 to connect thepower takeoff case 41 ofpower takeoff apparatus 40 separated from thefirst mounting mechanism 30 to the rear surface ofsupport platform 53 of thesecond mounting mechanism 50. Then, a power transmission line is produced for transmitting power from thepower supply shaft 7 e of propellingtransmission 7 to the plowing implement 70 through thepower takeoff shaft 43 disposed by thepower takeoff apparatus 40 in the rear middle position transversely of vehicle body, and through arotary shaft 64. - That is, as shown in FIGS. 8, 9,10 and so on, when the
power takeoff apparatus 40 is supported by the support platform (i.e. support plate) 53, theinput shaft 42 ofpower takeoff apparatus 40 projects forward from thepower takeoff case 41 to be placed rearwardly of and coaxial with thepower supply shaft 7 e of propellingtransmission 7 by the positioning action of thesecond mounting mechanism 50. Theinput shaft 42 is connected to thepower supply shaft 7 e to be separable and rotatable together by thecoupling 42 a. Thepower takeoff shaft 43 is disposed rearwardly of the propellingtransmission 7 and in the middle position transversely of the vehicle body, and projects rearward from thepower takeoff case 41. Thepower takeoff shaft 43 is connected to an input shaft of plowing implement 70 through therotary shaft 64 with a universal joint 64 a disposed in between. The torque ofpower supply shaft 7 e of propellingtransmission 7 may be taken out by thepower takeoff apparatus 40 in the middle position transversely of the vehicle body. The power is transmitted from thepower takeoff shaft 43 ofpower takeoff apparatus 40 through therotary shaft 64 to the plowing implement 70 to drive tillage tines. The power transmission line from thepower takeoff shaft 43 through therotary shaft 64 to the plowing implement 70 extends linearly in the fore and aft direction of the vehicle body in plan view. - According to this invention, the tractor may be converted not only to a grass cutting machine and a rotary cultivating machine, but also to a dust collecting machine with a dust collector attached to the vehicle body between the front and rear wheels, and a dust catcher disposed at the rear of the vehicle body to receive and store dust from the dust collector.
Claims (5)
1. A working vehicle having a propelling transmission for transmitting power of an engine to drive wheels, the propelling transmission being attached to body frames as offset to one side transversely of a vehicle body to produce a utility space in the other side, with a PTO apparatus for transmitting power supplied from the propelling transmission to an external working implement, said working vehicle comprising:
a PTO apparatus for transmitting power supplied from said propelling transmission to an external working implement, said PTO apparatus includes an input shaft extending longitudinally of said vehicle body and drivably connected to said propelling transmission, and an output shaft extending parallel to and spaced from said input shaft and drivingly connected to said external working implement; and
a mounting mechanism for attaching said PTO apparatus to vehicle body frames, said mounting mechanism selectively fixing said PTO apparatus to at least two pivotal postures about said input shaft.
2. A working vehicle as defined in claim 1 , wherein said mounting mechanism includes a support platform for detachably attaching said PTO apparatus, and a mounting base connected to said support platform and detachably attached to said vehicle body frames.
3. A working vehicle as defined in claim 2 , wherein said support platform includes a first support plate for supporting said PTO apparatus with said output shaft offset to said one side transversely of said vehicle body, and a second support plate for supporting said PTO apparatus with said output shaft in a substantially middle position transversely of said vehicle body.
4. A working vehicle as defined in claim 3 , wherein, when said PTO apparatus is attached to the vehicle body frames by using said first support plate, said PTO apparatus as a whole is disposed in the side to which said propelling transmission is offset, a dust transmitting duct extending longitudinally of the vehicle body through said utility space.
5. A working vehicle as defined in claim 3 , wherein, when said PTO apparatus is attached to the vehicle body frames by using said second support plate, a power transmission line extends substantially linearly with respect to a transverse direction of the vehicle body, from said output shaft of said PTO apparatus to a plowing implement acting as said external working implement.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000223761A JP3708001B2 (en) | 2000-07-25 | 2000-07-25 | Power take-out structure of work vehicle |
JP2000-223761 | 2000-07-25 | ||
JPPAT.2000-223761 | 2000-07-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
US20020011375A1 true US20020011375A1 (en) | 2002-01-31 |
US6454041B2 US6454041B2 (en) | 2002-09-24 |
Family
ID=18717810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/789,483 Expired - Lifetime US6454041B2 (en) | 2000-07-25 | 2001-02-20 | Working vehicle with a PTO apparatus |
Country Status (5)
Country | Link |
---|---|
US (1) | US6454041B2 (en) |
JP (1) | JP3708001B2 (en) |
DE (1) | DE10117514B4 (en) |
FR (1) | FR2812248B1 (en) |
GB (1) | GB2364878B (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6454041B2 (en) | 2000-07-25 | 2002-09-24 | Kubota Corporation | Working vehicle with a PTO apparatus |
US20050005587A1 (en) * | 2002-09-19 | 2005-01-13 | Yanmar Agricultural Equipment Co., Ltd. | Traveling lawn mower |
US20090146458A1 (en) * | 2007-12-10 | 2009-06-11 | Davison Scott E | Vehicle component configuration |
US20090242302A1 (en) * | 2006-10-25 | 2009-10-01 | Katsumi Fujiki | Working vehicle with cabin |
CN103395367A (en) * | 2013-08-19 | 2013-11-20 | 徐州重型机械有限公司 | Oil pump device for automobile crane |
US20160182878A1 (en) * | 2009-01-27 | 2016-06-23 | Echostar Technologies L.L.C. | Systems and methods for providing closed captioning in three-dimensional imagery |
US10125848B2 (en) * | 2016-07-19 | 2018-11-13 | Deere & Company | Variator for work vehicle drivetrain |
US20190292031A1 (en) * | 2016-12-15 | 2019-09-26 | Richard Arnold | Working Platform for a Tractor |
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US7107746B2 (en) * | 1996-07-27 | 2006-09-19 | Ferris, A Division Of Simplicity Manufacturing, Inc. | Mower suspension system and method |
US8397367B2 (en) | 1997-10-28 | 2013-03-19 | Briggs And Stratton Corporation | Mower suspension system and method |
US6651529B1 (en) | 2002-07-02 | 2003-11-25 | Hydro-Gear Limited Partnership | Hydrostatic transmission |
JP4750385B2 (en) * | 2004-07-14 | 2011-08-17 | ヤンマー株式会社 | Power transmission device to work machine in traveling work machine |
US7311626B2 (en) * | 2004-03-01 | 2007-12-25 | Peco, Inc. | Crank shaft power takeoff system and method |
JP4653765B2 (en) | 2007-02-26 | 2011-03-16 | 株式会社クボタ | Riding mower |
CN103053238B (en) * | 2012-12-06 | 2015-06-03 | 浙江乐客来机械有限公司 | Over-torsion protection farm implement transmission mechanism |
ITBZ20130049A1 (en) * | 2013-10-08 | 2015-04-09 | Seppi M Ag S P A | SYSTEM FOR THE ADJUSTMENT OF TWO TRANSMISSION SHAFTS CONNECTED BY A CARDAN SHAFT |
US10029562B2 (en) * | 2016-08-26 | 2018-07-24 | Deere & Company | Power take-off arrangement for work vehicle |
DE102017123066A1 (en) | 2017-10-05 | 2019-04-11 | Amazonen-Werke H. Dreyer Gmbh & Co. Kg | Processing vehicle and method for connecting a machining tool with a processing vehicle |
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US3209604A (en) * | 1962-09-25 | 1965-10-05 | John D Mitchell | Tractor drive attachment |
DE1655950A1 (en) * | 1968-02-10 | 1971-09-09 | Hermann Ziegler | Additional gear for tractor with PTO shaft |
AT319647B (en) * | 1972-08-23 | 1974-12-27 | Walterscheid Gmbh Jean | Device for coupling a vehicle with a device, trailer or the like., In particular a tractor with an agricultural device or trailer |
DE2935274A1 (en) * | 1979-08-31 | 1981-03-12 | GRIESKIRCHEN ALOIS PöTTINGER MASCHINENFABRIK GMBH | SELF-DRIVING MACHINE WITH WORKING EQUIPMENT, IN PARTICULAR AGRICULTURAL MACHINE. |
FR2650541B1 (en) * | 1983-02-07 | 1996-10-11 | Lely Nv C Van Der | TRACTOR OR SIMILAR VEHICLE PROVIDED WITH A LATERALLY OFFSET PTO |
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JPH0751389Y2 (en) * | 1990-04-27 | 1995-11-22 | 株式会社神崎高級工機製作所 | Power extractor for tractor |
JPH0585211A (en) * | 1991-09-27 | 1993-04-06 | Kanzaki Kokyukoki Mfg Co Ltd | Axle drive of service car |
JPH05146208A (en) * | 1991-11-28 | 1993-06-15 | Iseki & Co Ltd | Front mower |
US5947218A (en) * | 1996-07-08 | 1999-09-07 | Kanzaki Kobyukoki Mfg. Co., Ltd. | Power take-off transmission for a working vehicle |
JPH10217784A (en) * | 1997-02-07 | 1998-08-18 | Kanzaki Kokyukoki Mfg Co Ltd | Power extracting device for tractor |
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JP3708001B2 (en) | 2000-07-25 | 2005-10-19 | 株式会社クボタ | Power take-out structure of work vehicle |
-
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- 2000-07-25 JP JP2000223761A patent/JP3708001B2/en not_active Expired - Lifetime
-
2001
- 2001-02-20 US US09/789,483 patent/US6454041B2/en not_active Expired - Lifetime
- 2001-02-23 FR FR0102469A patent/FR2812248B1/en not_active Expired - Lifetime
- 2001-03-02 GB GB0105235A patent/GB2364878B/en not_active Expired - Lifetime
- 2001-04-07 DE DE10117514.0A patent/DE10117514B4/en not_active Expired - Lifetime
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6454041B2 (en) | 2000-07-25 | 2002-09-24 | Kubota Corporation | Working vehicle with a PTO apparatus |
US20050005587A1 (en) * | 2002-09-19 | 2005-01-13 | Yanmar Agricultural Equipment Co., Ltd. | Traveling lawn mower |
US7047715B2 (en) * | 2002-09-19 | 2006-05-23 | Yanmar Agricultural Equipment Co., Ltd. | Running mower |
US20090242302A1 (en) * | 2006-10-25 | 2009-10-01 | Katsumi Fujiki | Working vehicle with cabin |
US8157042B2 (en) * | 2006-10-25 | 2012-04-17 | Yanmar Co., Ltd | Working vehicle with cabin |
US20090146458A1 (en) * | 2007-12-10 | 2009-06-11 | Davison Scott E | Vehicle component configuration |
US20160182878A1 (en) * | 2009-01-27 | 2016-06-23 | Echostar Technologies L.L.C. | Systems and methods for providing closed captioning in three-dimensional imagery |
CN103395367A (en) * | 2013-08-19 | 2013-11-20 | 徐州重型机械有限公司 | Oil pump device for automobile crane |
US10125848B2 (en) * | 2016-07-19 | 2018-11-13 | Deere & Company | Variator for work vehicle drivetrain |
US20190292031A1 (en) * | 2016-12-15 | 2019-09-26 | Richard Arnold | Working Platform for a Tractor |
US10589971B2 (en) * | 2016-12-15 | 2020-03-17 | Richard Arnold | Working platform for a tractor |
Also Published As
Publication number | Publication date |
---|---|
GB2364878B (en) | 2002-08-14 |
DE10117514B4 (en) | 2017-03-09 |
JP2002036896A (en) | 2002-02-06 |
JP3708001B2 (en) | 2005-10-19 |
GB2364878A (en) | 2002-02-13 |
GB0105235D0 (en) | 2001-04-18 |
US6454041B2 (en) | 2002-09-24 |
DE10117514A1 (en) | 2002-02-14 |
FR2812248A1 (en) | 2002-02-01 |
FR2812248B1 (en) | 2006-07-14 |
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