JPH05219817A - Mowing device - Google Patents

Abstract

PURPOSE:To provide the mowing device capable of mowing weeds on the upper surface of the balk of a paddy field and also weeds on the slope surface of the balk and permitting to simply adjust the height, inclination angle and lateral position of a trimmer on the basis of the balk. CONSTITUTION:The mowing device is characterized by attaching a main body- connecting cylinder 6 capable of being rotated on the driving main body 2 and adjusting and fixing the rotation angle at the front part of the driving main body 2, disposing the base part of a transmission arm 5 on the front side of the main body connecting cylinder 6, disposing at the tip front part of the transmission arm 5 a trimmer-connecting cylinder 8 whose base end can be rotated and whose rotation angle can be adjusted, continuously disposing a supporting cylinder 8' on the trimmer-connecting cylinder 8 in the orthogonal state, disposing a trimmer-supporting cylinder 10 capable of being rotated at a rotation angle of at least 180 degree at the tip end of the supporting cylinder 8', the rotation angle being adjustable and fixable, and disposing a trimmer- attaching member 12 having a trimmer 13 in the cross state at the lower end of the trimmer-supporting cylinder 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mowing device capable of mowing both the weeds on the upper surface of a field ridge and the weeds on a slope.

[0002]

The applicant has developed a mower capable of cutting both the weeds on the upper surface and the weeds on the ridges of rice fields and secured the patent of Japanese Utility Model Publication No. 2-20915. , And after further research, applied for an improved machine that uses a mowing disk and a trimmer together (Japanese Patent Application No. 2-203305).
No.) and repeated the test, and completed a grass cutting device of the present invention of a method of cutting both the weeds on the upper surface of the ridge and the weeds on the side surface of the ridge with a single trimmer that more quickly responds to the actual condition of the work.

[0003]

The gist of the present invention will be described with reference to the accompanying drawings.

A main body connecting cylinder 6 which can be rotated with respect to the drive main body 2 and whose rotational angle can be adjusted and fixed is attached to the front side of the drive main body 2, and the base of the conduction arm 5 is orthogonal to the front side of the main body connecting cylinder 6. The conductive arm 5 has a base end on the front side of the front end of the conductive arm 5.
A trimmer connecting cylinder 8 that can be rotated with respect to and can adjust and fix its rotation angle is provided, and a supporting cylinder 8'is continuously provided in an orthogonal state to the trimmer connecting cylinder 8 and is supported at the tip of the supporting cylinder 8 '. Tube 8 '
A trimmer support cylinder 10 capable of rotating at least 180 degrees to adjust and fix the rotation angle is provided, and a trimmer mounting body 12 is attached to the lower end portion of the trimmer support cylinder 10 in a crossed state. The present invention relates to a mower, wherein 13 is provided so as to be operable by a trimmer.

[0005]

The operation of the present invention will be described based on an embodiment of mowing rice ridges. When the drive main body 2 is driven and the upper surface of the ridge is mowed, the main body connecting tube 6 is first driven as shown in FIG. The main body connecting cylinder 6 is rotated so that the tip end of the conductive arm 5 fixed to the front side of the main body connecting cylinder 6 is diagonally downward left.
To fix.

By adjusting the rotation of the transmission arm 5, the height of the trimmer 13 with respect to the upper surface of the ridge, the angle between the upper surface of the ridge and the trimmer 13, and the position of the trimmer 13 to the left and right can be adjusted.

Next, the base end of the trimmer connecting cylinder 8 provided on the front side of the leading end of the conductive arm 5 is rotated with respect to the conductive arm 5, and the support cylinder is provided continuously below the trimmer connecting cylinder 8 in an orthogonal state. 8 '
Is fixed to the upper surface of the ridge in a suspended state.

The tilt angle of the trimmer 13 with respect to the upper surface of the ridge is adjusted by the rotation of the trimmer connecting cylinder 8.

Further, the trimmer support cylinder 10 is rotated with respect to the tip end of the support cylinder 8 ', and the trimmer mounting body 12 attached to the lower end of the trimmer support cylinder 10 in an orthogonal state is used to trimmer the trimmer.
Fix 13 across the top of the ridge.

The rotation of the trimmer support cylinder 10 adjusts the angle across the upper surface of the ridge of the trimmer 13 from right beside to diagonally forward.

This angle adjustment is 180
It becomes possible to adjust by the rotation angle.

In this state, the grass cutting device is moved forward, and the trimmer 13 attached to the trimmer mounting member 12 operates to trim the weeds on the upper surface of the ridge.

Next, a case of mowing the ridge slope will be described.

From the state shown in FIG. 4 where the upper surface of the ridge is mowed, the main body connecting cylinder 6 is rotated to move and fix the tip end of the conductive arm 5 diagonally upward on the opposite side as shown in FIG. When the support tube 8 is rotated and the tip of the support tube 8'is fixed obliquely downward to the left, the trimmer 13 is maintained in a state of mowing the slope on the right side of the ridge. The trimmer actuates the weeds on the right side of the ridge.

Further, as shown in FIG. 6, the tip end of the conductive arm 5 is rotated obliquely upward on the inclined surface side on the left side of the ridge so that the direction of the support cylinder 8'of the trimmer connecting cylinder 8 is directed obliquely downward right. Fix it and turn the trimmer 13 upside down so that weeds on the left side slope of the ridge will be mowed.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings show a self-propelled mower according to a preferred embodiment of the present invention, which will be described in detail below.

A drive body 2 equipped with an engine 1 is provided with wheels 3 and a steering device 4, and a handle 14 is provided on the steering device 4 so as to project therefrom, and a clutch lever 15 for disconnecting power to the wheels 3 is provided.
An accelerator lever 17 for adjusting the rotation of the engine 1 is provided.

A support cylinder 18 is provided on the front side of the drive main body 2, and a main body connecting cylinder 6 is provided with a fixing device 7 which is rotatable with respect to the drive main body 2 and can adjust and fix the rotation angle.
And the base portion of the conduction arm 5 is attached to the front side of the main body connecting cylinder 6 in an orthogonal state.

The fixing device 7 is provided with a handle-like turning plate 20 which can be manually turned between the left and right handles 14.
A worm 23 that rotates through the rods 21 and 22 by the rotation of the turntable 20 is supported by a bearing attached to the drive body 2, and the worm 23 is attached to a worm wheel 25 attached to the outer circumference of the body connecting cylinder 6. Let it mesh.

When the turntable 20 is turned, the worm wheel 25 is turned via the worm 23, the main body connecting tube 6 is turned with respect to the support tube 18, and the turntable is turned by the worm locking mechanism. Since the rotation of the main body connecting cylinder 6 is fixed when 20 is stopped, the tip end of the conductive arm 5 whose base is continuously provided on the front side of the main body connecting cylinder 6 rotates with respect to the drive main body 2 at a desired angle. Then fixed.

At the front end of the transmission arm 5, there is provided a trimmer connecting cylinder 8 to which a base end is rotated with respect to the conductive arm 5 and a fixing device 9 for adjusting and fixing the rotation angle is attached. A support cylinder 8'is vertically installed in a perpendicular state.

In the fixing device 9, the base end of the trimmer connecting cylinder 8 is rotatably fitted in a shaft cylinder 32 provided in a projecting manner on the front end surface of the conduction arm 5, and a pin receiving member provided at the base end of the shaft cylinder 32. The engagement pin 34 is fitted and inserted into the cylinder 9 ′, and the engagement pin 34 is elastically fitted into the engagement hole 35 which is formed in the outer peripheral portion of the trimmer connecting cylinder 8 at an appropriate interval, and the engagement hole 35 is formed. By selecting, the trimmer connecting cylinder 8 is pivotally fixed at a desired angle.

A trimmer having a fixing device 11 attached to the tip of a support cylinder 8'continuously connected to the trimmer connecting cylinder 8 so as to be rotatable by at least 180 degrees with respect to the support cylinder 8'and fixed at that rotation angle. The support cylinder 10 is fitted.

The fixing device 11 adopts the same structure and operation as the fixing device 9, and is a collar body 37 provided at the upper end of the trimmer support cylinder 10.
Engagement holes 38 are formed at appropriate intervals in the engagement holes, and engagement pins provided inside the engagement pin cylinder 39 attached to the outer peripheral portion of the support cylinder 8 ′ above the collar body 37 are engaged with each other at a desired angle. By elastically fitting into the hole 38, the trimmer support cylinder 10 is rotationally fixed at a desired angle.

This self-propelled mower can surely mow both the weeds on the ridge surface and the ridge slope with one trimmer 13, and it is easy to switch between the ridge upper surface and the ridge slope. The height of the trimmer 13 with respect to the ridge surface, the inclination angle, and the position to the left and right can be adjusted by turning the turntable 20 provided near the handle 14 and adjusting the fixing device 9 and the fixing device 11. The trimming state of the trimmer 13 can be varied while maneuvering by adjusting the turntable 20 without stopping the traveling one by one in response to the change in the ridge shape inside.

Next, the power transmission mechanism adopted in this embodiment will be described.

The power of the engine 1 is transmitted to the drive shaft 26,
A pair of wheel driving bevel gears provided in the drive body 2
The power is separated by the 16 and 16 ', and the separated power is transmitted through the driven shaft 50 fitted in the bevel gear 16' and the worm gear transmission mechanism 33 via the gear transmission mechanism 51 of a pair of spur gears. Is transmitted to the wheel shaft 24 via the clutch mechanism 19 and the traveling is stopped by the clutch lever 15.

On the other hand, the power of the drive shaft 26 is applied to the intermediate shaft 28 laid in the trimmer connecting cylinder 8 by the upper pulley 27, the tension pulley 31, the lower pulley 29 and the belt 30 of the belt transmission mechanism arranged in the transmission arm 5. Bevel gear 40
It is transmitted to the upper vertical axis 42 in the support cylinder 8 ′ via 41, and causes the centrifugal clutch shoe 43 to rotate. When the rotation speed of the upper vertical axis 42 increases, the centrifugal force increases, and the friction piece of the centrifugal clutch shoe 43 is pressed against the inside of the centrifugal clutch drum 45, whereby the lower vertical axis 44 of the trimmer mounting body 12 rotates and the lower vertical direction. Two pieces are transmitted by the crank action of the crank mechanism 48 that uses the eccentric disc disposed on the crank drive shaft 46 to transmit to the crank drive shaft 46 via the gear mechanism 47 that is a pair of bevel gears provided at the lower end of the shaft 44. Slide the cutting blades 49 and 49 'of the trimmer 13
Mow the weeds that hit.

In the present embodiment, as described above, the power from the engine 1 is transmitted through the drive main body 2, the belt transmission mechanism arranged in the transmission arm 5, and the bevel gear in the trimmer connecting cylinder 8 to the inside of the trimmer supporting cylinder 10. Centrifugal clutch mechanism, trimmer mount 12
The power system for mowing the trimmer 13 via the gear mechanism 47 and the crank mechanism 48 of the above, and the gear transmission mechanism 51, the worm gear speed change mechanism 33, and the clutch mechanism 19 to separate the power from the drive main body 2 by the bevel gear The driving power system for driving 3 and the power distribution of two systems are arranged in the device, but such a power transmission mechanism selects a belt / chain mechanism, a spur gear / bevel gear, a screw gear, a worm gear mechanism, etc. Various designs are possible.

In this embodiment, the mowing device is attached to the two-wheeled vehicle, but it can be attached to the tracked vehicle or the one-wheeled vehicle.

Further, since this machine can adjust the tilt angle of the trimmer in a wide range, it is possible to mow not only the weeds on the ridge slope but also the weeds on the rice field in the ridge.

Further, since the center of gravity is present in the center of the machine body and only the trimmer is provided so as to project laterally, the weeds on the upper surface of the ridge can be stably mowed without leaving the entire width.

[0033]

Since the present invention is constructed as described above, it is possible to surely mow both the weeds on the upper surface of the ridge and the weeds on the ridge slope with a single trimmer. It can be easily switched by rotating the main body connecting cylinder, the trimmer connecting cylinder, and the trimmer supporting cylinder that can adjust and adjust the angle, and the height and tilt angle of the trimmer and the position to the left and right can be adjusted in response to changes in the ridge shape It is an excellent grass cutting device that can be easily adjusted.

[Brief description of drawings]

FIG. 1 is a side view of the present invention.

FIG. 2 is a sectional view of an essential part showing the structure of the present invention.

FIG. 3 is a plan view for explaining a trimmer portion of the present invention.

FIG. 4 is an explanatory front view showing a state in which weeds on the upper surface of the ridge of the trimmer portion of the present invention are mowed.

FIG. 5 is an explanatory front view showing a state in which weeds on the right ridge of the trimmer portion of the present invention are cut off.

FIG. 6 is an explanatory front view showing a state in which weeds on the left ridge of the trimmer portion of the present invention are mowed.

[Explanation of symbols]

 2 Drive main body 5 Conductive arm 6 Main body connecting cylinder 8 Trimmer connecting cylinder 8'Support cylinder 10 Trimmer support cylinder 12 Trimmer mounting body 13 Trimmer

Claims (1)

[Claims] 1. A body connecting cylinder, which is rotatable with respect to a drive body and whose rotation angle can be adjusted and fixed, is attached to a front side of the drive body.
A base of a conductive arm is attached to the front side of the main body connecting cylinder in an orthogonal state, and a trimmer connecting cylinder whose base end rotates with respect to the conductive arm and whose rotation angle can be adjusted and fixed is provided on the front side of the front end of the conductive arm. , The support cylinder is connected to the trimmer connecting cylinder in an orthogonal state,
A trimmer support cylinder that can rotate at least 180 degrees with respect to the support cylinder and adjust and fix the rotation angle is provided at the tip of the support cylinder, and a trimmer mounting body is attached to the lower end of the trimmer support cylinder in a crossed state. A trimmer mounting body with a trimmer projecting so that the trimmer can be operated.