JP2002068031A - Walking type control machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate hand movement, and to make sufficient tractive force exhibited. SOLUTION: Each moving wheel 8 grounding while projecting downward from a grounding face of a crawler travel device 2 is mounted to be freely rotatable in a side of the crawler travel device 2 provided in a lower side of a machine body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a walking-type management machine that performs agricultural work by a rotary at the rear while traveling while reliably towing the body by one crawler traveling device formed below the body.

[0002]

2. Description of the Related Art As a conventional walking-type management machine, one having a one-wheel type traveling device as shown in FIG. 6 is generally known. However, the wheel type traveling device has a problem that a sufficient traction force cannot be obtained due to a small contact area with the ground. Therefore, the applicant of the present invention filed Japanese Patent Application No.
No. 156686 has filed an application relating to a walking management machine having a crawler traveling device. This application is characterized in that the traveling device is formed by a wide crawler belt, thereby expanding the contact area of the traveling device and improving the traction force.

[0003]

The walking type management machine switches the traveling speed change lever to neutral when entering a garage or a warehouse, and moves the body to a stop position determined by manual movement. This is because exhaust gas fills up when the engine runs in a relatively narrow space such as a garage or a warehouse, and movement in the narrow space is finer and more accurate when performed by hand. This is because it is possible to do it. However, a walking-type management device having a crawler traveling device as described in the related art cannot be easily manually pushed because the tension applied to the crawler belt causes resistance. An object of the present invention is to provide a walking management device that can solve the above problem with a simple configuration.

[0004]

Means for Solving the Problems One crawler traveling device 2 is provided below a gear case 1 provided at the center of the machine body, and a rotary 3 is mounted behind the crawler traveling device 2.
In a walking-type management machine having a handlebar 4 for operating the fuselage extending upward from the upper side of the gear case 1, the grounding wheels 5, 6 constituting the crawler traveling device 2 are provided. The pivot shaft 7 of the ground contact wheel 5 located on the foremost side is protruded at least on one of the left and right sides of the crawler traveling device 2, and the contact surface of the crawler traveling device 2 is provided on a portion of the pivot shaft 7 outside the crawler width. A movable wheel 8 protruding downward from A and contacting the ground was freely rotatably mounted. Further, the moving wheel 8 is formed of a plate. Further, the movable wheel 8 is configured to be detachable.

[0005]

In the walking-type management machine according to the first aspect, the contact surface A of the crawler traveling device 2 is provided beside the contact wheel 5 located at the foremost side of the crawler traveling device 2.
Since the moving wheel 8 that projects downward and contacts the ground is freely rotatable, when the body is to be manually pushed, the crawler traveling device 2 can be moved from the road surface only by lifting the handle bar 4 as shown in FIG. Only the moving wheel 8 comes off the ground and can be easily pushed by hand. When it is desired to obtain the driving force of the crawler traveling device 2, the rear portion of the crawler traveling device 2 can travel by simply lowering the handle bar 4. In the walk-behind management machine according to the second aspect, since the movable wheel 8 is formed of a plate body, the movable wheel 8 is easy to get into the road surface. The moving wheel 8 is placed on the ground as shown in FIG.
The crawler travels with the entire surface of the contact surface A of the crawler traveling device 2 in contact with the ground to travel, and can exhibit a sufficient traction force.
Also, at this time, the moving wheel 8 that is stuck in the ground restrains the body from moving in the left-right direction and improves the straightness. In the walking-type management machine according to the third aspect, since the movable wheel 8 is configured to be detachable, it is possible to travel with the movable wheel 8 attached and detached as appropriate according to the purpose of use of the body. In other words, even on hard ground traveling where the moving wheel 8 does not bite, by removing the moving wheel 8, the traveling can be performed with the entire contact surface A of the crawler traveling device 2 grounded.

[0006]

Embodiments of the present invention will now be described with reference to the drawings. In the walking management machine of the present invention, a gear case 1 is provided at the center of the body, and power from a prime mover 9 is transmitted to a crawler traveling device 2 and a rotary 3 below to perform traveling and agricultural work. The crawler traveling device 2 is attached to the lower end of a traveling transmission case 10 extending downward and forward from the gear case 1, and the rotary 3 is attached to the lower end of a rotary transmission case 11 extending downward and rearward from the gear case 1,
The traveling device 2 and the rotary 3 are configured so as to be arranged in front and rear at the right and left center of the body. A rotary cover 13 for preventing the scattering of soil upward is attached to a mounting frame 12 extending rearward from the gear case 1 above the rotary 3, and prevents the soil from scattering forward at the front end of the rotary cover 13. The front cover 14 is mounted. Reference numeral 5 denotes a resistance rod for adjusting the soiling depth of the rotary 3, and extends downward from the mounting frame 12.

A handlebar 4 is provided above the gear case 1 so as to extend rearward and upward, so that an operator who walks rearward of the fuselage can perform a steering operation with the handlebar 4. Reference numerals 16 and 16 denote grips attached to the rear end of the handle rod 4. Finger clutch levers 17 for interrupting power to the rotary 3 and stand levers 19 for rotating the stand 18 are provided near the grips 16 and 16. A change lever 20 for switching the traveling speed and a main clutch lever 21 for interrupting the power to the gear case 1 are provided to facilitate the steering operation with the handlebar 4 held. The handle rod 4 is composed of two pipe rods extending radially in plan view with the gear case 1 as a center, and the left and right pipe rods are connected and reinforced by connecting rods 22 at the front and rear intermediate portions. Reference numeral 23 denotes a safety switch disposed at the center of the connecting rod 22, and the driving of the prime mover 9 is stopped by pressing the switch 23.

A mount 24 for mounting the prime mover 9 is formed in front of the gear case 1, and the prime mover 9 mounted on the mount 24 and the gear case 1 are connected by a belt to enable power transmission. Reference numeral 25 denotes a transmission cover that covers the transmission unit by the belt, and reference numeral 26 denotes a motor cover that covers the upper surface of the motor 9. A rotary transmission lever 2 for controlling the rotation speed and rotation direction of the rotary 3 is provided on one of the left and right sides of the gear case 1.
7, and a traveling speed change lever 28 for operating the traveling speed and the forward / reverse direction is provided on the other side. A gate-shaped bumper frame 29 is attached to the front end of the fuselage to protect the fuselage from obstacles that collide from the front of the fuselage.

The crawler traveling device 2 includes a traveling transmission case 1
0 A drive sprocket 30 receiving power at the lower end, two ground wheels 5, 6 located on the ground side, and an upper wheel 31 mounted above and forward of the two ground wheels 5, 6
And a crawler belt 32 is wound around the lower surface of the crawler belt.
Is formed. The grounding rolling wheel 5 located on the front side has its pivot shaft 7 protruding left and right sides, and disk-shaped moving wheels 8 are freely rotatably mounted on the left and right protruding ends. are doing. The movable wheels 8 have a diameter protruding below the ground plane A of the crawler traveling device 2 and are detachably mounted by bolts 33. Reference numeral 34 denotes a wheel cover that covers the upper side of the grounding wheels 5 and 6 and one side of the left and right sides. The wheel cover 34 and the crawler frame 35 located on the other side of the grounding wheels 5 and 6 are used for rolling. 5 and 6 are covered to prevent intrusion of soil.

When a farming operation such as tilling a field is performed by the walking type management machine having the above configuration, the work is performed by scraping the soil with the rotary 3 at the rear while pulling the body by the crawler traveling device 2 provided below the body. . When the work surface is soft ground,
As shown in FIG. 2, the left and right moving wheels 8, 8 enter the road surface,
The vehicle can travel straight ahead accurately while suppressing left and right hand shake during traveling. Further, at this time, the crawler traveling device 2 can contact the entire contact surface A, so that a sufficient traction force can be obtained. Further, since the ground wheels 5 and 6 are covered by the wheel cover 34 and the crawler frame 35, even when the crawler traveling device 2 sinks on the road surface as shown in FIG. It is possible to prevent soil from entering the crawler belt 32 and to reduce detachment and damage of the crawler belt 32. When the work road surface is a hard ground, the handle bar 4 is depressed to make the rear portion of the crawler traveling device 2 touch the ground and travel. When the traveling movement is insufficient in tractive force, the left and right moving wheels 8, 8 are removed as shown in FIG. 4, and the traveling can be performed with the entire contact surface A of the crawler traveling device 2 contacting the ground.

For short-distance movement from a work place to a car, or for small movements such as storing the machine in a warehouse, the handlebar 4 is lifted to separate the crawler traveling device 2 from the road surface as shown in FIG. This is performed with only the wheels 8 and 8 grounded. Since the movable wheels 8, 8 are freely rotatable, the operator who lifts the handle rod 4 can easily push the body by hand, thereby enabling fine body movement. Further, since the operator can obtain the drive of the crawler traveling device 2 simply by lowering the lifted handle rod 4 to ground the rear portion of the crawler traveling device 2, the operation is easy. It should be noted that, in the claims, numbers are provided for convenience in comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by this entry.

[0012]

[Brief description of the drawings]

FIG. 1 is an overall side view showing a hand pushing movement state.

FIG. 2 is an overall side view showing a working state.

FIG. 3 is an overall plan view.

FIG. 4 is an overall side view showing a state where a moving wheel is removed.

FIG. 5 is a front sectional view of the crawler traveling device.

FIG. 6 is an overall side view of a walking management machine having a wheel-type traveling device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Gear case 2 Crawler running device 3 Rotary 4 Handle bar 5 Grounding wheel 6 Grounding wheel 7 Pilot shaft 8 Moving wheel A Grounding surface

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] September 6, 2000 (2000.9.6)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction contents]

For short-distance movement from a work place to a car, or for small movements such as storing the machine in a warehouse, the handlebar 4 is lifted to separate the crawler traveling device 2 from the road surface as shown in FIG. This is performed with only the wheels 8 and 8 grounded. Since the movable wheels 8, 8 are freely rotatable, the operator who lifts the handle rod 4 can easily push the body by hand, thereby enabling fine body movement. Further, since the operator can obtain the drive of the crawler traveling device 2 simply by lowering the lifted handle rod 4 to ground the rear portion of the crawler traveling device 2, the operation is easy. The above
In the embodiment, the movable wheels 8, 8 are located on the front side.
The pivot 7 of the grounding wheel 5 is extended and attached to the shaft end.
Although the configuration has been described, the configuration is not limited to this.
Near the mounting position of the front contact wheel 5 of the roller frame 35
A support shaft is separately protruded from the
The same applies to the configuration in which the freely rotatable moving wheel 8 is attached to
It has the same effect. Further , in the claims, numbers are written for convenience in comparison with the drawings, but the present invention is not limited to the configuration of the attached drawings by this entry.

Claims (3)

[Claims] 1. A crawler traveling device (2) is provided below a gear case (1) provided in the center of the machine body, and a rotary (3) is mounted behind the crawler traveling device (2).
A ground-type rolling wheel constituting the crawler traveling device (2) in a walking-type management machine having a handlebar (4) for manipulating the fuselage extending upward from the upper side of the gear case (1). Of the (5) and (6), the pivot shaft (7) of the ground contact wheel (5) located at the foremost side projects from at least one of the left and right sides of the crawler traveling device (2). A moving wheel (8) that protrudes downward from the ground contact surface (A) of the crawler traveling device (2) to a part outside the crawler width of (7) and grounds.
A walking-type management machine characterized by a free rotation. 2. The walking-type management machine according to claim 1, wherein said movable wheel (8) is a plate. 3. The walking management device according to claim 1, wherein the movable wheel is detachable.