JP2000139153A - Mower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mower capable of cutting grass or the like planted on a roof. SOLUTION: This mower cuts grass or the like planted on a roof by running a hand cart 3 provided with a mowing function on a pair of rails 2 at the right and left on the roof, wherein the hand cart 3 is provided with a frame striding over the pair of rails 2, and the frame is provided with (1) a pair of front wheels and a pair of rear wheels at the right and left sides, and (2) a supporting frame at the middle, which can be freely reciprocated between the right and left sides, the supporting frame being provided with an engine and mowing section which work together.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a mowing device.

[0002]

2. Description of the Related Art Conventionally, as one form of a mowing device, there is a device in which an operating section is provided on a traveling vehicle body and a mowing section is vertically provided below the traveling vehicle body.

In such a mowing apparatus, an operator riding on a driving unit in a vegetation on which grass such as turf is vegetated operates the traveling vehicle body to mowing the mowing unit to perform mowing work. Is going.

[0004]

However, in recent years, turf has been vegetated on the upper surface of the roof to improve the heat insulating effect of the building. However, when such turf cutting work is performed by the above-described mowing device, In addition, since the operation is performed on the roof with the operator riding on the mowing device, there is a risk that the operator may fall off the roof due to excessive operation, and safety in operation cannot be ensured.

In the case of a saw roof having a saw-toothed roof, there is a problem that turf vegetated on an inclined surface cannot be cut by the above-described lawn mowing apparatus.

[0006]

Therefore, according to the present invention, a pair of right and left traveling rails is laid on a roof, and a traveling vehicle having a mowing function is placed on both traveling rails. It is possible to cut grass such as turf vegetated on the roof while traveling on the traveling rail, and on the traveling bogie, a bogie frame is provided in a straddle shape between a pair of left and right traveling rails. Attach the front wheel and the rear wheel to the left and right parts respectively, and attach the support frame to the middle part of the bogie frame so as to be able to reciprocate in the left and right direction.The support frame is provided with a motor unit and a mowing unit, and the motor unit It is an object of the present invention to provide a mowing device characterized in that the wheel and the mowing unit are connected to each other in an interlocked manner.

The present invention also has the following configuration.

A reciprocating mechanism is interposed between the support frame and the bogie frame.

The supporting frame is attached to the bogie frame so as to be reciprocally movable in the left-right direction in a hanging state.

[0010] Rollers are mounted on the support frame so as to be rollable so as to be positioned above the right and left sides of the support frame, and both rollers are placed on the upper surface of the bogie frame and roll on the upper surface. That it was configured to.

[0011]

Embodiments of the present invention will be described below.

That is, in the mowing apparatus according to the present invention, a pair of left and right traveling rails are laid on a roof, and a traveling bogie having a mowing function is mounted on both traveling rails, and the traveling bogie is used for traveling. While traveling on rails, grass such as grass vegetated on the roof can be cut.

[0013] In this manner, the worker can automatically cut grass such as turf without boarding the traveling trolley, thereby ensuring good worker safety. be able to.

In addition, a bogie frame is provided on the traveling bogie between the pair of left and right traveling rails, front and rear wheels are respectively attached to left and right side portions of the bogie frame, and a middle part of the bogie frame is provided. A support frame is attached to the portion so as to be reciprocally movable in the left-right direction, a motor unit and a mowing unit are provided on the support frame, and the wheel and the mowing unit are connected to the motor unit in an interlocked manner.

In this way, by moving the support frame in the middle part of the bogie frame in the left-right direction, it is possible to secure a large cutting width by the mowing section and improve the cutting work efficiency.

[0016] A reciprocating mechanism is interposed between the support frame and the bogie frame.

In this manner, the reciprocating movement mechanism enables
The mowing part can be reliably moved laterally via the support frame and can be arranged at a desired mowing position, and from this point also, mowing work efficiency can be improved.

The support frame is attached to the bogie frame so as to be reciprocally movable in the left-right direction in a hanging state.

In this manner, the ground height of the prime mover section and the mowing section supported by the support frame can be reduced, and the position of the center of gravity of the entire apparatus can be lowered. As a result, the traveling stability of the traveling vehicle can be improved. Can be secured.

In addition, the rollers are mounted on the support frame so as to be rollable so as to be positioned above the left and right sides of the support frame, and both rollers are mounted on the upper surface of the bogie frame and rolled on the upper surface. It is configured to move.

In this way, the traveling frame can function as a roller guide rail, and the frame structure can be simplified and made compact.

[0022]

Embodiments of the present invention will be described below with reference to the drawings.

A shown in FIG. 1 and FIG. 2 is a mowing device according to the present invention. The mowing device A extends in the front-rear direction and has a long inclined surface 1a in the left-right direction and a front-rear direction. Distracted,
Each of the inclined surfaces 1a is provided on the saw roof 1 formed in a sawtooth shape with the inclined surfaces 1b having a short width in the left-right direction and arranged in the left-right direction.
It is possible to cut grass such as grass vegetated on the top.

As shown in FIGS. 3 to 5, a traveling rail 2 is laid on a plurality of valleys 1c formed on the saw roof 1 along the direction in which the valleys 1c extend, and is adjacent to the valleys 1c. A traveling cart 3 having a mowing function between a pair of left and right traveling rails 2 and 2
Are mounted in a straddle-like manner, and while the traveling carriage 3 is self-propelled while straddling the inclined surface 1a, it is possible to cut grass such as grass vegetated on the inclined surface 1a.

Also, as shown in FIGS.
A stepped concave transport path 7 is formed on the rear side edge of the rear rail, and a pair of front and rear transport rails 4 and 4 extending in a direction substantially orthogonal to the traveling rail 2 are laid on the transport path 7, A transport vehicle 5 is placed on both transport rails 4 and 4, and connection rails 6 and 6 are laid on the transport vehicle 5 to be connected to and detachable from the traveling rails 2 and 2. The front ends of the connection rails 6, 6 are connected to the rear ends of the traveling rails 2, 2, so that the traveling carriage 3 can be moved between the two rails 2, 2, 6, 6.

First, the traveling rail 2 and the traveling vehicle 3 will be described in detail with reference to FIGS.

The traveling rail 2 is constructed by arranging a circular pipe having substantially the same length as the front-rear width of the inclined surface 1a between the rail stays 10 protruding below the short-width inclined surface 1b. The plurality of traveling rails 2 arranged in parallel in the left-right direction are arranged at substantially the same height as the transport path 7.

The traveling carriage 3 includes a carriage frame 11 straddled between a pair of left and right traveling rails 2, 2, and a carriage frame 11.
A functional unit frame 12 suspended in the middle part of the unit 11 so as to be able to reciprocate in the left-right direction, and a motor unit provided on the functional unit frame 12
13, a mowing section 14, which is interlockedly connected to the motor section 13, and is vertically attached to the functional section frame 12, a mowing section 15 that collects grass cut by the mowing section 14, and interlocks with the motor section 13. The vehicle includes a transmission unit 16 connected thereto, a wheel drive mechanism 17 and a function unit lateral movement mechanism 18 which are interlockedly connected to the transmission unit 16, and a control unit 19 for controlling each drive unit.

The bogie frame 11 includes a pair of left and right frame forming bodies 20, 20 extending in the front-rear direction, and right and left sides of the front and rear portions of the left frame forming body 20 along a long inclined surface 1 a in the left-right direction. A pair of front and rear parts that extend upward
Rear long frame forming bodies 21, 21 and right frame forming body
A pair of front and rear short frame forming bodies 22 and 22 extending front and rear from left and right along the short inclined surface 1b in the left-right direction from the front and rear portions of the 20, respectively, and the front and rear short frames The left ends of the formed bodies 22 and 22 and the front and rear long frame formed bodies 21 and 2
Pivoting part 23,2 for pivotally connecting the right end of
3 and a connecting frame forming member 28 which is laid between upper portions of the front and rear short width frame forming members 22 and 22.

The left and right frame forming bodies 20, 20
Is a formed body body 20 formed in a substantially rectangular pipe shape with a lower opening.
a, 20a, and a pair of left and right extending pieces 20b, 20b, 20b, 20b extending downward from the lower opening edges of the body bodies 20a, 20a. Two front wheels 24, 24 and two rear wheels 25, 25 are respectively attached to the front and rear portions between 20b, 20b, and a pair of left and right lateral displacement regulating rollers 26, 26 are attached to the lower end of each extension piece 20b, 20b. 26 and a rising regulation roller 27 are attached.

The rear wheels 25, 25 are linked to a transmission section 16 to be described later via a wheel drive mechanism 17.

Between the right side of the rear long frame forming body 21 and the left side of the rear short frame forming body 22, an electric expansion / contraction operation cylinder 29 as an expansion / contraction operation means is provided. I have.

By expanding and contracting the expansion / contraction operation cylinder 29 in this manner, the left and right front and rear wheels 24, 24, 25, 2
The interval of 5 can be scaled.

The functional unit frame 12 is provided between a pair of left and right longitudinally extending frame forming bodies 30, 30 extending in the front and rear direction, and between a front end and a rear end of the both longitudinally extending frame forming bodies 30, 30, respectively. The vehicle includes a pair of front and rear roller connecting plates 31, 31 and a pair of left and right rollers 32, 32, 32, 32 mounted on the upper portions of the roller connecting plates 31, 31, respectively.

The pair of front and rear roller connecting plates 31, 31
Is located between the front and rear long frame forming bodies 21 and 21,
A pair of left and right rollers 3
2, 32 are mounted on the upper surface of the front long frame forming body 21 while a pair of left and right rollers 32, 32 are mounted on the upper rear surface of the rear roller connecting plate 31. Are mounted on the upper surface of the rear long frame forming body 21 with the rollers 32 and 32 being rotatably mounted.

In this way, the functional unit frame 12 is suspended between the front and rear long frame forming bodies 21 and 21 while being suspended between the front and rear long frame forming bodies 21 and 21. Along the left frame forming body 20 and the front and rear short width frame forming bodies 22 and 2
The left and right side frame forming body 20 and the front and rear short width frame forming bodies 22 and 22 form the same functional unit frame 12 so that the front and rear side long widths can be reciprocated. It does not fall off from the frame forming bodies 21 and 21 to the left and right.

The motor unit 13 has an engine 33 mounted between the front portions of the longitudinally extending frame forming bodies 30, 30, and the engine 33
A radiator 34 and an air cleaner 35 are disposed immediately behind the radiator.

The mowing part 14 is a longitudinally extending frame forming body.
A mowing part main body 36 is suspended via a lifting mechanism 37 so as to be able to move up and down in the middle between 30, 30. Reference numeral 37a denotes a lifting cylinder constituting a part of the lifting mechanism 37, and the lifting cylinder 37a
Is connected to an external drive hydraulic circuit 131 via a lift control valve 133 described later.

The mowing portion main body 36 is linked to the engine 33 via a mowing portion main body driving mechanism 38.

As shown in FIG. 8, the mowing section main body driving mechanism 38 includes an engine output pulley 38a mounted on the output shaft of the engine 33, and a mowing section main body driving pulley 38b mounted on the input shaft of the mowing section main body 36. The transmission belt 38c is wound between the two, and the transmission belt 38c can be freely tensioned and relaxed via a tension roller 38e by a tension arm 38d, and the tension arm 38d has a clutch means 38f such as a clutch motor. Are linked via a tension wire 38g.

In this manner, the mowing section main body 36 is moved up and down
The mowing section main body 36 is mower-operated in a state where it is lowered by 37 so as to be in close proximity to grass such as turf vegetated on the long inclined surface 1a, so that mowing work can be performed.

The operation and stop of the mowing section main body 36 can be performed by the mowing section main body driving mechanism 38.

The grass-collecting section 15 is a longitudinally extending frame forming body.
A grass collecting unit main body 40 is attached to the rear end of each of the grass collecting units 30 and 30 via a stay 41, and a conveying pipe 42 is provided between the right side of the grass collecting unit main body 40 and the right side of the grass cutting unit main body 36. I have.

The grass collecting section main body 40 is provided with a lower case 40a.
The upper case 40b is mounted on the lower case 40a
The three grass collection storage bags 43, 43, 43 are accommodated therein, and the rear end of the transport pipe 42 is connected to the upper case 40b.

In this manner, the grass cut by the grass cutting section main body 36 is collected in the transport pipe 42 → the upper case 40b → the grass collection storage bag 43, 43, 43.

The transmission section 16 is disposed between the rear portions of the longitudinally extending frame forming bodies 30 and 30 and is interlocked with the engine 33 via a transmission shaft 45.
Is a variable displacement hydraulic pump P, as shown in FIG.
An HST (hydrostatic continuously variable transmission) including a hydraulic motor M connected to the variable displacement hydraulic pump P via a hydraulic circuit 130, an external drive pump P1, and an external drive pump P1; Equipped with an external drive motor M1 connected via a drive hydraulic circuit 131, the external drive hydraulic circuit 131 includes a reciprocating movement control valve 132 for controlling a reciprocating movement mechanism 60 described later, and an elevating An elevation control valve 133 for controlling the mechanism 37 is provided.

Further, rear wheels 25, 25 are linked to the transmission section 16 via a wheel drive mechanism 17, and the wheel drive mechanism 17 is provided with a left wheel drive mechanism provided at the rear of the left frame forming body 20. A transmission relay gear case as a transmission relay portion provided coaxially with the gear case 46 and the rear folding support portion 23 on the rear side.
A transmission transmission shaft 48 extending along the rear long frame forming body 21 is interposed between the transmission transmission shaft 47 and the transmission transmission shaft interlocked with the transmission unit 16 in the middle of the transmission transmission shaft 48. Gear case 49
Are slidably linked to each other, and a transmission chain case 51 is provided between a transmission relay gear case 47 and a right wheel driving gear case 50 provided at a rear portion in the right frame forming body 20.
Is interposed.

An output gear 52 is connected to the left wheel driving gear case 46 in an interlocking manner, and input gears 53, 53 coaxially mounted on the left rear wheel 25, 25 respectively.
Is engaged.

The right wheel driving gear case 50 includes:
An output gear 54 is interlocked and connected with the output gear 54, and input gears 55, 55 coaxially mounted on the right rear wheels 25, 25, respectively.

The power generated from the engine 33 is transmitted from the transmission shaft 45 to the transmission section 16 (hydraulic motor M), to the transmission gear case 49, to the traveling transmission shaft 48, to the left wheel driving gear case 46, and then to the output gear 52. → Input gears 53, 53 → Power is transmitted to the left rear wheels 25, 25 and traveling transmission shaft 48 →
Transmission relay gear case 47 → transmission chain case 51 → right wheel drive gear case 50 → output gear 54 → input gear 55, 55 → transmitted to right rear wheels 25, 25 and left and right rear wheels 25, 25, 2
5, 25 are rotated at the same rotational speed, and the traveling carriage 3 can smoothly travel on the traveling rails 2, 2.

Further, a reciprocating mechanism 60 for reciprocating the functional section frame 12 in the left-right direction is interlockedly connected to the transmission section 16, and the reciprocating mechanism 60 includes a pair of front and rear roller connecting plates 31, 31. A transmission shaft 61 for movement extending in the front-rear direction is horizontally mounted between the right side portions of the transmission transmission shaft 61, and a worm reduction gear case 62 is interlockedly connected to a rear portion of the movement transmission shaft 61, and is provided at the front and rear ends of the movement transmission shaft 61. Driving sprockets 63, 63 are respectively attached, and the left driving frame is attached to the front driving sprocket 63.
The transmission chain 66 on the front side stretched via brackets 64, 65 between the inside front part of
On the other hand, the rear drive sprocket 63 has a rearward movement that is stretched via the brackets 67 and 68 between the inner rear part of the left frame forming body 20 and the transmission relay gear case 47. It runs around the middle of the transmission chain 66. 69a,
69b is an intermediate guide sprocket.

The worm reduction gear case 62 is operatively connected to the external drive motor M1 of the transmission section 16, and the drive of the external drive motor M1 is controlled by a reciprocating movement control valve 132 and further described later. It can be controlled by the control unit 19.

In this way, the power generated from the engine 33 is transmitted from the transmission shaft 45 to the transmission section 16 (external drive motor M1) → the worm reduction gear 62 → the movement transmission shaft 61 →
The driving sprockets 63, 63 are transmitted to the movement transmission chains 66, 66, and the functional unit frame 12 can be reciprocated accurately in the left-right direction.

At this time, since the worm reduction gear case 62 has a self-locking function, the functional section frame 12 can be fixed without providing a separate fixing means, and the mowing work efficiency of the mowing section 14 can be improved. Can be secured.

As shown in FIGS. 8 and 9, a movement restricting member 125 is provided at the rear end of the traveling rail 2, and the traveling vehicle 3 is brought into contact with the movement restricting member 125 so as to contact the traveling vehicle 3.
Abutment body 126 for movement restriction of
The contact body 126 is pivotally supported by a pivot pin 127 in the middle of each of the extension pieces 20b, 20b outside the left and right frame forming bodies 20, 20 to separate the traveling rail 2 and the connection rail 6 from each other. An upright abutting posture in which the abutment with the movement restricting body 125 is possible in conjunction with the operation, and a connecting end between the traveling rail 2 and the connecting rail 6 from the front end of the connecting rail 6. The restriction releasing piece 128 protruding forward allows the posture to be freely changed to a lying contact avoiding posture in which the contact with the movement restricting body 125 is avoided. 129 is a stopper piece for holding the contact body 126 in a contact posture.

As described above, when the connecting rail 6 is not connected to the traveling rail 2, the movement regulating body 125
The lower end portion 126a of the abutment body 126, which is in the abutment posture, abuts, and the movement of the traveling vehicle 3 is regulated, and as a result, the traveling vehicle 3 is prevented from coming off the traveling rail 2. be able to.

When the connecting rail 6 is connected to the traveling rail 2, the restriction releasing piece 128 pushes the upper end 126 b of the abutting member 126, and the abutting member 126 is centered on the pivot pin 127. Then, the posture is changed to the abutment avoiding posture in the reclined state by rotating and falling down.

As a result, the lower end portion 126a of the contact member 126 does not contact the movement restricting member 125, and the traveling carriage 3 is connected to the connection rail 6
Can be moved to the side.

Next, the control unit 19 will be described. As shown in FIG.
The operation switch unit (not shown) provided in the control unit 19 is mounted on the right side wall of FIG.

As shown in FIG. 10, the control unit 19 is mounted on the input side of the output shaft 139 of the external drive motor M1 to detect the number of rotations and the direction of rotation of the output shaft 139. Rotation detection sensor 140, and first to seventh detection sensors 141, 142, 143,
4,145,146,147 and the swash plate 148 of the variable displacement hydraulic pump P
And a rotation operation position detection sensor 150 for detecting the rotation operation position of the trunnion arm 149 interlockingly connected to.

As shown in FIG. 8, the control section 19 includes, on the output side, a transmission cylinder 151 for operating a trunnion arm, which is interlocked with the trunnion arm 149 to rotate the trunnion arm 149; Mowing part main body drive mechanism 38
Clutch means 38f and the reciprocating movement control valve 132
And the valve 133 for elevation control and the engine 33
The drive / stop electric circuit section 33a to be stopped is connected.

Here, the first to fifth detection sensors 14
Referring to FIGS. 1 to 145, as shown in FIG. 11, the first to third detection sensors 141, 142, and 143 are attached to the left frame forming body 20 of the bogie frame 11 at intervals in the front-rear direction. Fourth and fifth detection sensors 144 and 145 are attached to the front end and the rear end, respectively.

The deceleration detected pieces 155, 155, 155, 155, the stop detected pieces 156, 156, 156, 156, and the emergency stop detected pieces 157, 157, 15 are provided at the front and rear portions of the saw roof 1, respectively.
7,157.

As described above, when the second detection sensor 142 as the deceleration position detection sensor detects the deceleration detection target piece 155, the detection result is input to the control unit 19, and the control unit 19
→ Transmission cylinder 151 for trunnion arm operation → Variable displacement hydraulic pump P → Controlling hydraulic motor M
Is gradually reduced to a predetermined speed without notice.

Then, the first stop position detection sensor is used.
When the third detection sensors 141 and 143 detect the stop detection pieces 156 and 156, the detection result is input to the control unit 19, and the control unit 19 controls the hydraulic motor M to gradually decelerate the traveling vehicle 3. To stop.

When one of the fourth and fifth detection sensors 144, 145 detects the emergency stop detected piece 157, the detection result is input to the control unit 19, and the control unit 19 operates the drive / stop. The electric circuit 33a is controlled to forcibly stop the driving of the engine 33.

Next, the sixth and seventh detection sensors 146 and 147 will be described. As shown in FIG. 12, the sixth detection sensor 146 is mounted on the left side of the upper surface of the front long frame forming body 21, while the center bending pivot is provided. A seventh detection sensor 147 is attached to the support 23.

In this way, the sixth detection sensor 146 detects the first set position a, which is the lowermost (leftmost) position of the functional unit frame 12, and inputs the detection result to the control unit 19, The control unit 19 resets the rotation detection sensor 140 to initialize the first set position a as the home position.

The intermediate position is shifted to the right from the first set position a, which is the home position, to the second set position b, and the right position shifted to the right is set to the third set position c. , First, second and third setting positions a, b,
The control section 19 controls the external drive motor M1 via the rotation detection sensor 140 so that the functional section frame 12 is stopped at c.

The seventh detection sensor 147 is provided with left and right wheels 24, 24, 24
The center bending angle which changes according to the distance between 25 and 25 is detected, and if the center bending angle is set to a large value, the right-side stop position of the functional unit frame 12 is set to the second stop position. In the case of three setting positions c, and in the case where the middle folding angle is set to be small, in order to change the right stop position of the functional unit frame 12 to the fourth setting position d on the left side of the third setting position c. The control unit 19 controls the external drive motor M by the rotation detection sensor 14.
Control via 0.

Next, the transport rails 4 and 4 and the transport carriage 5 will be described in detail with reference to FIGS. 1 to 5 and FIGS.

As shown in FIGS. 1 and 2, the transport rails 4 and 4 are formed so as to extend over the entire width of the saw roof 1 in the right and left direction, and are provided with rail laying grooves 7a and 7a formed in the transport path 7.
Laying inside.

The carriage 5 is composed of a carriage body 70 which runs on the carriage rails 4, 4, a lifting support 71 mounted on the carriage body 70, and left and right sides of the lifting support 71. A pair of left and right guide rails 72, 72 extended in the front-rear direction
An advance / retreat vehicle 73 movably mounted on the forward / backward guide rails 72, 72; and a pair of left and right connection rails 6, 6 extending in the front-rear direction on left and right sides of the advance / retreat vehicle 73. Is provided.

The bogie main body 70 includes a pair of front and rear main body frame forming bodies 75, 7 extending in the left-right direction on the transport rails 4, 4.
In the meantime, a pair of left and right main body frame forming bodies 76, 76 extending in the front-rear direction is laid horizontally to form a main body frame 77, and left and right wheels 78, 7 are respectively attached to the front and rear main body forming bodies 75, 75.
8,79,79, while the front and rear body frame forming body
Motorized motor 80,8
0, and input gears 82, 82 coaxially mounted on the left wheels 78, 78 to drive gears 81, 81 mounted on the output shafts 80a, 80a of the motors 80, 80 via intermediate gears 83, 83. Are engaged.

Then, on the right rear portion of the main body frame 77,
A cable drum 84 is provided, and an electric cable 85 is wound around the cable drum 84 so that the electric cable 85 can be fed out and wound up, and the end of the electric cable 85 is connected to the end of the transport path 7 as shown in FIG. It is connected to an outlet 86 provided and can supply electricity to the carrier 5 through the electric cable 85. 74 is an electric motor for driving a cable drum.

In this way, the left wheels 78, 78 are driven by the transport driving motors 80, 80 to which electricity is supplied via the electric cable 85, and the carriage main body 70 is moved to the transport rails 4,
4 so that it can reciprocate in the left-right direction.

At this time, the electric cable 85 is fed and wound by the cable drum 84 so as to adapt to the movement of the bogie main body 70, so that electricity can be reliably and stably supplied to each electric drive unit.

The lifting support 71 is mounted at the center of the bogie main body 70, and is configured to be raised and lowered by an electric cylinder or the like.

The reciprocating carriage 73 is a pair of left and right reciprocating frame forming members extending in the front-rear direction on the reciprocating guide rails 72, 72.
An advancing / retracting frame 92 is formed from 90, 90 and a pair of front / rear frame forming bodies 91, 91 extending in the left-right direction so as to penetrate a front part and a rear part of the bilateral frame forming bodies 90, 90, respectively.
A mounting table 93 is stretched on the advance / retreat frame 92, and an advance / retreat operating mechanism 94 is interposed between the mounting table 93 and the elevating support 71. 90a, 90a, 90b, 90b are front / rear front and rear wheels, 90c, 90c
Is a guide roller.

As shown in FIG. 18, the reciprocating mechanism 94 is a pair of left and right reciprocating cylinders which expand and contract in the front-rear direction.
95,95 and piston rods 95a, 95a of each cylinder 95,95
Electric telescopic operation motor that expands and contracts by synchronizing
96. 97 is a shaft for synchronous operation, and 98 is a cylinder stay. W is the advance / retreat width.

In this way, when the transport vehicle 5 travels, the advance / retreat vehicle 73 is separated from the inclined surface 1a by the advance / retreat width W so that the transport vehicle 5 is not easily traveled. When connecting the connecting rails 6 and 6 to the rails 2 and 2, the advancing / retreating carriage 73 can be moved to the traveling rails 2 and 2 on the inclined surface 1a. In addition, the degree of freedom in controlling the dimensions of the transfer carriage 6 can be increased.

The connecting rails 6 and 6 are formed in the shape of a circular pipe having the same outer diameter as the running rail 2 and male spigot fitting portions 100 and 100 are formed at the respective leading ends to form the rear end of the running rail 2. The male spigot fitting portion 100 can be spigot-fitted to the female spigot fitting portion 99 formed in the portion.

The pair of front and rear frame forming bodies 9
Slide bodies 101, 101 are slidably mounted on the left side of 1,91, respectively, and the left connecting rail 6 is laid across the upper surfaces of both slide bodies 101, 101, and between the connecting rail 6 and the mounting table 93. An interval changing mechanism 102 as an interval changing means is provided. 109 is a slide roller.

The interval changing mechanism 102 includes a pair of front and rear interval changing cylinders 103, 103 that extend and contract in the left-right direction, and an electric motor 105 for extending and contracting the piston rods 104, 104 of the respective cylinders 103, 103 in synchronism. are doing. 106 is a shaft for synchronous operation, and 107 is a cylinder stay.

Here, a notch 10 is provided on the left side of the mounting table 93.
8 to form the left connecting rail 6 in the cutout 108.
Is slidable in the left-right direction, so that the distance from the right connection rail 6 can be changed.

Thus, the left connecting rail 6
Can be slid in the left-right direction by a pair of front and rear interval changing operation cylinders 103, 103 which extend and retract synchronously, so that a parallel state can be secured with respect to the right connection rail 6, and as a result, Rails for both connections 6,6
Can be prevented from being generated in the interval between the images.

As shown in FIG. 4, a temporary storage section 110 for temporarily storing the grass collecting storage bag 43 is provided on the mounting table 93 at the right front portion, and is provided along the rear edge. Fall prevention fence 11
1 and an operation panel / control unit 112 is mounted at the upper center of the fall prevention fence 111.

Then, the operator who got on the mounting table 93
By operating the operation panel / control unit 112, the driving operation of each driving unit of the transport carriage 5 can be performed.

At this time, since the operation panel / control section 112 is attached to the fall prevention fence 111, the operator operating the operation panel / control section 112 needs to operate the fall prevention fence 111.
Can be easily grasped, and a fall accident from the mounting table 93 can be prevented, and safety can be ensured.

As shown in FIG. 16, a passing detection sensor 160 and a riding detection sensor 161 for detecting the riding situation of the work vehicle 3 are provided at the front end, the front part, and the rear end of the mounting table 93.
And a stop lock sensor 162, respectively, and these sensors 160, 161, 162 are connected to the input side of the operation panel / control unit 112.

A forward movement restricting piece 163 for restricting the forward movement of the traveling carriage 3 is mounted in the middle of the connecting rail 6 so as to protrude and retract vertically, while being attached to the rear end of the connecting rail 6. Has a reverse movement restricting piece 164 for restricting the reverse movement of the traveling vehicle 3.

The projecting / retracting operation of the forward movement restricting piece 163 is controlled by the control unit 19.

As described above, when the boarding detection sensor 161 detects the traveling vehicle 3 and the stop lock sensor 162 detects the traveling vehicle 3, the detection result of the stop locking sensor 162 is input to the control unit 19. Then, the control unit 19 causes the forward movement restricting piece 163 to protrude upward from the connection rail 6, and the forward movement restricting piece 163 and the reverse movement restricting 164 cooperate to bring the traveling vehicle 3 into a stop locked state. I'm trying to do it.

The operation panel / control section 112 controls the transport carriage 5 to be operable only when the stop lock state is established.

The operation panel / control section 112 controls the transport carriage 5 to be inoperable in the case of the following sensor detection result.

When the passage detection sensor 160 is OFF (non-detection state), the boarding detection sensor 161 is ON (detection state), and the stop lock sensor 162 is OFF.

When the passage detection sensor 160 is ON, and
When the boarding detection sensor 161 is ON and the stop lock sensor 162 is OFF.

When the passage detection sensor 160 is ON, and
When the boarding detection sensor 161 is off and the stop lock sensor 162 is off.

Further, all the sensors 160, 161 and 162 are OF
In the case of F, the operation panel / control unit 112
It is determined that the traveling vehicle 3 is not on the vehicle, and control is performed so that the transport vehicle 5 can be operated.

Next, the steps of the mowing operation by the mowing apparatus A configured as described above will be described with reference to FIGS. 2, 11, 12 and 17 to 20.

First, the following operations (1) and (2) are performed by operating the operation panel / control section 112.

(1) As shown in FIGS. 2 and 17, in order to cut grass such as turf vegetated on the slope 1a located on the leftmost side of the saw roof 1, the grass is transported to a position immediately behind the slope 1a. The carriage 5 is moved.

(2) As shown in FIGS. 2, 18 and 19, the mounting table 93 of the transport vehicle 5 is advanced forward by the advance / retreat operating mechanism 94 to form at the rear end of the traveling rails 2, 2. The male spigot fitting portions 100, 100 formed at the distal ends of the connecting rails 6, 6 are fitted to the female spigot fitting portions 99, 99 to connect the two rails 2, 2, 6, and 6.

Next, the following operation (3) to (13) is performed by operating the operation switch unit provided on the traveling vehicle 3.

However, (4) to (12) can be operated automatically by operating an automatic operation switch (not shown).

(3) As shown in FIG. 2, the traveling carriage 3 mounted on the connecting rails 6 and 6 is moved on the traveling rails 2 and 2 by self-propelled.

(4) As shown in FIGS. 2 and 12, the mowing section 14 of the traveling vehicle 3 is moved to the home position, which is the first setting position a, by the reciprocating movement mechanism 60, and the mowing section 14 is moved at the same position. The elevating mechanism 37 is moved down to a predetermined mowing position.

(5) As shown in FIG. 2, the mowing section 14 is mowing, and the traveling carriage 3 is moved forward.

(6) As shown in FIG. 11, when the second detection sensor 142 detects the detection target piece 155 for deceleration disposed near the front end of the traveling rails 2, 2, the traveling carriage 3 is decelerated. When the first detection sensor 141 detects the stop detection piece 156 provided at the front end of the traveling rails 2 and 2, the traveling carriage 3 is stopped.

At this time, during the deceleration running of the traveling vehicle 3, the inclined slope 148 of the variable displacement hydraulic pump P is operated by the trunnion arm operating transmission cylinder 151 via the trunnion arm 149, and the rotational speed of the hydraulic motor M is reduced. The smooth and reliable reduction is performed smoothly and steplessly, and the traveling is stopped by stopping the rotation of the hydraulic motor M.

(7) As shown in FIGS. 2 and 12, the mowing operation of the mowing section 14 is stopped, and then the mowing section 14 is raised by the lifting mechanism 37 and the reciprocating mechanism 60 is moved to the second set position. b at the same position b.
To lower to a predetermined mowing position.

(8) As shown in FIG. 2, the mowing section 14 is mowing, and the traveling vehicle 3 is moved backward.

(9) As shown in FIGS. 2 and 12, when the third detection sensor 143 detects the deceleration detection piece 155 disposed near the rear end of the traveling rails 2, 2, the traveling bogie 3
When the third detection sensor 143 detects the stop detection piece 156 disposed at the rear end of the traveling frames 2, 2, the traveling carriage 3 is stopped.

(10) As shown in FIGS. 2 and 12, the mowing operation of the mowing section 14 is stopped. Thereafter, the mowing section 14 is raised by the lifting mechanism 37 and the reciprocating mechanism 60 is moved to the third set position. c at the same position c.
To lower to a predetermined mowing position.

(11) The same operation as (5) and (6) is performed.

(12) As shown in FIG. 2, the mowing unit 14 is returned to the home position by the reciprocating movement mechanism 60, and the traveling carriage 3 travels backward in the same state.

Thus, the cutting operation of the entire slope 1a is completed.

(13) As shown in FIG. 19, the traveling trolley 3 is moved by itself to the transport trolley 5 by itself.

(14) As shown in FIG. 18, the mounting table 93 is moved backward, and the connecting rails 6, 6 are moved to the traveling rails 2,
Remove from 2.

(15) The carriage 5 is moved to a position immediately after the inclined surface 1a on the right side.

(16) The above (2) to (15) are repeated until the cutting operation of all the inclined surfaces 1a of the saw roof 1 is completed.

As shown in FIG. 20, when the distance between the traveling rails 2 and 2 is different from the distance between the connecting rails 6 and 6, the connecting rails 6 and 6 are appropriately changed by the distance changing mechanism 102. Then, the distance between the running rails 2 and 2 is adjusted.

At this time, the traveling carriage 3 is connected to the connecting rails 6,6.
By connecting the output terminal of the operation panel / control unit 112 to the input terminal of the control unit 19 via a cable for changing the interval (not shown) while keeping the state of being placed on the top, the operation panel / control unit 112 By operating an interval change operation switch (not shown) provided on the vehicle, the interval between the connection rails 6, 6 is actuated, and the bogie frame is interlocked with this interval change operation.
The distance between the left and right front and rear wheels 24, 24, 25, 25 of the eleventh wheel 11 can be changed by the expansion / contraction operation cylinder 29.

Therefore, if the connecting rails 6, 6 are connected to the running rails 2, 2, the running trolley 3 can be moved onto the running rails 2, 2 as it is.

[0125]

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

According to the first aspect of the present invention, a pair of right and left traveling rails are laid on the roof, and a traveling vehicle having a mowing function is mounted on both traveling rails, and the traveling vehicle is mounted on the traveling rail. The operator can automatically cut grass, such as grass, without having to board a traveling cart because the grass, such as grass vegetated on the roof, can be cut while running on top. Thus, it is possible to satisfactorily ensure the operational safety of the worker.

In addition, a bogie frame is provided on the traveling bogie between the pair of right and left traveling rails, and front and rear wheels are respectively attached to left and right side portions of the bogie frame. Since the support frame is attached to the part so as to be able to reciprocate in the left-right direction, the motor frame and the mowing part are provided on the support frame, and the wheels and the mowing part are interlockingly connected to the motor part, respectively. By moving the support frame in the left-right direction in the middle part, a large cutting width by the mowing part can be secured, and the mowing work efficiency can be improved.

According to the second aspect of the present invention, since the reciprocating mechanism is interposed between the support frame and the bogie frame, the mowing portion is reliably secured by the reciprocating mechanism via the support frame. , And can be arranged at a desired mowing position, and from this point also, mowing work efficiency can be improved.

According to the third aspect of the present invention, since the support frame is attached to the bogie frame so as to be reciprocally movable in the left-right direction in a hanging state, the ground clearance of the motor unit and the mowing unit supported by the support frame is provided. , The center of gravity of the entire device can be lowered, and as a result, the traveling stability of the traveling vehicle can be favorably secured.

[0130] According to the present invention, the rollers are mounted on the support frame so as to be rollable so as to be positioned above the right and left sides of the support frame, respectively.
Since it is configured to be mounted on the upper surface of the bogie frame and roll on the same upper surface, the traveling frame can function as a guide rail for the rollers, and the frame structure can be simplified and compact. I can do it.

[Brief description of the drawings]

FIG. 1 is an explanatory plan view of a mowing device according to the present invention.

FIG. 2 is a partially enlarged explanatory view of the mowing device.

FIG. 3 is a side view of a main part of the mowing device.

FIG. 4 is a plan view of a main part of the mowing device.

FIG. 5 is a rear view of a main part of the mowing device.

FIG. 6 is an explanatory rear view of the traveling vehicle.

FIG. 7 is an explanatory plan view of the traveling vehicle.

FIG. 8 is an explanatory rear view of the movement restricting body.

FIG. 9 is an explanatory side view of the movement restricting body.

FIG. 10 is a control block diagram.

FIG. 11 is an explanatory diagram of forward and backward control of the traveling vehicle.

FIG. 12 is an explanatory diagram of right and left lateral movement control of the mowing unit.

FIG. 13 is an explanatory side view of the transport vehicle.

FIG. 14 is an explanatory plan view of the transport vehicle.

FIG. 15 is an explanatory rear view of the transport vehicle.

FIG. 16 is an explanatory diagram of stop lock control of the traveling vehicle.

FIG. 17 is an explanatory side view of the mowing device.

FIG. 18 is an explanatory side view of the mowing device.

FIG. 19 is a side view explanatory view of the mowing device.

FIG. 20 is an explanatory view of the rear operation of the mowing device.

[Explanation of symbols]

 A mowing equipment 1 saw roof 2 traveling rail 3 traveling carriage 4 transportation rail 5 transportation carriage 6 connection rail

Claims (4)

[Claims] 1. A pair of right and left traveling rails are laid on a roof, a traveling vehicle having a mowing function is mounted on both traveling rails, and the traveling vehicle is moved on the traveling rails. Grass such as turf vegetated on the top can be cut off, and a truck frame is provided on the traveling cart between the pair of left and right traveling rails, and front and rear wheels are respectively provided on the left and right sides of the truck frame. At the same time, the support frame is attached to the middle part of the bogie frame so as to be able to reciprocate in the left and right direction. Mowing device characterized by the following. 2. A reciprocating mechanism is interposed between the supporting frame and the bogie frame.
The mowing device according to the above. 3. The mowing device according to claim 2, wherein the support frame is attached to the bogie frame so as to be reciprocally movable in a left-right direction in a hanging state. 4. A roller is mounted on the support frame so as to be rollable so as to be positioned above the left and right sides of the support frame, and both rollers are mounted on the upper surface of the bogie frame and rolled on the upper surface. The mowing device according to claim 3, wherein the mowing device is configured to move.