JP2000166303A - Dash inhibitor for walking type tending machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a dash inhibitor for walking type tending machine capable of easily responding to inhibit dashing in plowing by rotary and in the case of unnecessary for the dash inhibitor, evacuating the dash inhibitor from its dash inhibiting position. SOLUTION: The dash inhibitor (a) of the walking type tending machine (A) is installed on the driving shaft side (b) than the rotary (c) and the resisting rod (a') is rotatably installed on the rotary transmission case, a pulling spring is set between the rear end of the resisting rod (a') and the rotary transmission case, in the case of the dashing of the body, the resisting rod turns to the anti- clock wise direction by the action of the spring to act as a resistance to earth, and a wire is connected to the resisting rod (a') and in unnecessary case of the resisting rod (a') the wire is pulled to hold the resisting rod in pulled up state, and the tip of the resisting rod (a') is formed in a sphenoid shape to easily stick into the earth.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for preventing a dash generated in a plow by a rotary in a walking type management machine.

[0002]

2. Description of the Related Art Conventionally, in a dash prevention device of a walking type management machine, a resistance rod for preventing a dash of a traveling machine body is provided on a rotary transmission case either before or after the rotary. As described above, a resistance bar having a U-shaped cross section is used as a dash prevention member, the tip of which is formed into an acute angle, and the V-shape is formed by operating a handle. There is one that has resistance by pushing a resistance rod into the ground. (Japanese Unexamined Patent Publication No.
317705)

[0003]

In the above-mentioned invention, the V-shaped resistance rod is always fixed to the rotary transmission case with the fixed rod, so that it is necessary to push down the handle when tilling the tilling. Yes, and even in cases where dash prevention is not necessary, resistance will always be applied when tilling.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem. It is an object of the present invention to easily cope with dashing during tilling and to prevent dashing when dashing is not required. This is to avoid this from the dash prevention position.

[0005]

In order to achieve the above object, according to the present invention, as a dash prevention device, a resistance rod which is rotatable with respect to a rotor transmission case is used, and this is connected via a spring. When it is not used to prevent dashing, it should be avoided from the prevention position.In addition, the tip of the resistance rod is formed in a plow shape, so that it can be stabbed in the ground. We try to solve the problem in an easy way.

That is, the dash prevention device in the walking-type management machine according to the present invention is provided such that a resistance bar is rotatably provided on a rotary transmission case on a drive side from a rotary.
A tension spring is stretched between the rear end of this resistance bar and the rotary transmission case, so that when the aircraft is dashing, the resistance bar rotates counterclockwise by the action of the spring to provide resistance to the ground. In addition, if a wire is connected to the resistance bar and the use of the resistance bar is unnecessary, the tip of the resistance bar should be further pulled up and held by the wire. By forming it in a plow shape, it is configured to be easily stabbed in the ground.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION In the case of tilling work using a rotary tilling device in a walking type management machine, if the rotation of the drive wheel in the running direction is the same as the rotation direction of the rotary, the soil of the field is hard. When plowing, the rotary blade is hard to get into the soil, and the rotation speed of the rotary is faster than the traveling speed of the drive wheel, so the rotary blade kicks over the ground surface, and the rotary tillage device rises. The management machine itself accelerates. There is a possibility that so-called running aircraft dashes may occur. When the steering wheel of the management machine is turned 180 degrees in the opposite direction and travels to the rotary device side, the rotation direction of the drive wheel and the rotation direction of the rotary are different from each other. There is a case where the vehicle dashes backward, that is, dashes to the operator side, due to a reaction force due to biting into the ground or a reaction force when coming out of a hard part in the ground.

[0008] As described above, it is necessary to prevent the dash of the traveling body from being dashed forward or backward depending on the rotational direction of the rotary. For this reason, a resistance bar and a resistance member for preventing the dash are provided in front of or behind the rotary shaft of the rotary. According to the present invention, a resistance bar in such a dash prevention device is provided in front of a rotary shaft of a rotary.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. The walking management machine (A) provided with the dash prevention device (a) of the present invention includes a forward running body (B) and a rear rotary tilling device (C). The traveling body (B) has an engine (e) mounted above an engine stand (1) and a fuel tank (2) provided thereon. The engine (e) passes through a transmission case (3) from the engine (e). The power is transmitted to the mission (m), and the speed-changed power is branched to the drive wheel (b) side and the rotary tilling device (C) side rotary (c).

The transmission (m) and the transmission mechanism to be transmitted to the transmission wheels (b) and the rotary (c) are a transmission case (m '), a drive wheel chain case (b'), a rotary wheel A rotary case (c ') is integrated, and a rotary cover (5) is provided on a rotary frame (4) projecting horizontally from above the rotary transmission case (c'). At the end of 4), a gauge wheel (6) has its supporting rod (7).
It is provided to be adjustable.

The rotary transmission case (c ') branched from the transmission case (m') is located at the center of the traveling body (B) in the traveling direction, and the rotary (c) is
A rotary blade (9) is disposed on the rotary shaft (8) over both sides of the rotary transmission case (c '). Similarly, the rotary cover (5) is provided on both sides of the rotary transmission case (c ') so as to cover the rotary blade (9). (10)
Is a handle, (11) is a shift lever, (12) is a rotation lever, and the handle (10) can rotate 180 degrees from front to back.

The dash prevention device (a) of the present invention is provided on the drive wheel (b) side of the rotary shaft (8) with respect to the rotary transmission case (c '). The resistance bar (a ') constituting the dash prevention device (a) has a tip shaped like a plow, and is opposed to a projecting piece (13) protruding below the rotary transmission case (c'). A tension spring (17) is provided between the upper end (15) of the resistance rod (a ') and the protrusion (16) above the rotary transmission case (c'). ). Further, the resistance bar (a ') is provided with a wire (18) for lifting in the middle thereof, and the wire (1) is provided on the pilot side.
By lifting 8), the resistance bar (a ') is to be avoided from its working range. The dash prevention device (a) shown in FIG. 4 is a rotary transmission case (c ″) that covers a power transmission mechanism for the rotary shaft (8).
However, the shape is different from that shown in FIGS. The dash prevention device (a) is a plow-shaped resistance bar (a ')
The configuration described above is not necessarily limited to the configuration described above as long as it is configured to rotate counterclockwise by the tension spring (17).

[0013]

In a soft field, the resistance bar (a ') is rotated by the pulling action of the spring (17) and sticks too much in the ground. State. In such a case,
Since it is not necessary to use the resistance bar (a ′), the wire (1) is used.
8) By pulling up and storing the resistance bar (a '), unnecessary resistance is not applied during work.

During normal tilling, when the drive wheels (b) of the traveling body (B) and the rotary (c) of the rotary tilling device (C) rotate in the same direction, the rotary transmission case (c ') The resistance bar (a ') attached to ()) travels with the plow part at its tip stroked over the field scene as shown in (a) of FIG. 2; As shown, the rotary blade (9) hardly enters the ground, and the rotational speed of the rotary blade (9) is higher than the traveling speed of the drive wheel (b), so that the traveling body (B) dashes forward. At this time, the rotary tiller (C) side is lifted, and the resistance bar (a ') is rotated by the action of the spring (17) to become a right angle to the field scene, and the tip of the resistance bar (a') is sharp. The plow-shaped part is stuck in the ground and the traveling body (B)
Prevent dashing.

When the handle (10) is turned in the opposite direction by 180 degrees to cause the traveling body (B) to travel in the opposite direction, that is, to the rotary side, the resistance bar (a ') is connected to the rotary blade ( As it proceeds during the plowing of 9), the plow part at the tip of it goes slightly underground. At this time, when the rotary blade (9) comes into contact with a hard part in the ground, the reaction force against the resistance at that time and the rotation direction of the rotary (c) are opposite to the rotation direction of the drive wheels (b) of the traveling body (B). Since the rotational speed of the rotary (c) is higher than the traveling speed of the drive wheels (b) of the traveling body (B) in the direction, the traveling body (B)
Dashes backwards, i.e. towards the pilot. At this time, the resistance bar (a ') is rotated by the action of the spring (17) to become a right angle on the field scene, and the plow-like portion is stabbed in the ground, thereby controlling the traveling body (B). Prevent dashing to the user side.

[0016]

According to the dash prevention device of the walking-type management machine of the present invention, the resistance rod is rotatably supported on the rotary transmission case on the drive wheel side from the rotary, and the resistance rod is located behind the pivot point of the resistance rod. Since a tension spring is interposed between the end side and the rotary transmission case, when the rotary is rotated in the same direction as the drive wheel and travels forward, the traveling body dashes forward due to a hard field scene. In such a case, when the steering wheel is rotated in the opposite direction to rotate the rotary in the opposite direction to the drive wheel, and travels on the rotary side, the reaction force caused by the hard part in the ground, When the traveling aircraft dashes to the pilot's side, the resistance bar turns counterclockwise due to the action of the spring and stabs into the ground. It is possible to prevent the shoe.

Since the resistance bar in the dash prevention device described above has a plow-shaped tip, the resistance bar becomes perpendicular to the ground due to the turning action of the spring, and is easily stabbed, so that the dash of the traveling body is made. The operation can be reliably prevented. In addition, since the pull-up wire is connected to the resistance bar, when it is not necessary to use the resistance bar, the resistance bar can be pulled up and housed by the wire, and thereby the waste caused by the resistance bar can be obtained. Unnecessary resistance can be eliminated.

[Brief description of the drawings]

FIG. 1 is an overall side view of a walking management machine including a dash prevention device of the present invention.

FIG. 2A is an enlarged side view of the dash prevention device at the time of normal plowing, and FIG. 2B is an enlarged side view of the dash prevention device at the time of dashing.

FIG. 3 is an enlarged side view of a state in which a wire is connected to a resistance bar in the dash prevention device.

FIG. 4 is an enlarged side view of another embodiment of the dash prevention device.

[Explanation of symbols]

 Reference Signs List A Walking control machine B Running machine C Rotary tilling device a Dash prevention device a 'Resistance bar b Drive wheel b' Chain case for drive wheel c Rotary c ', c "Rotary drive case e Engine m Mission m' Mission case 4 Rotary Frame 5 Rotary cover 6 Gauge wheel 7 Support rod 8 Rotary shaft 9 Rotary blade 10 Handle 13 Projection 14 Pivot point 15 End 16 Projection 17 Tension spring 18 Wire

Claims (3)

[Claims] In a walking type management machine, a resistance bar is rotatably provided on a rotary transmission case on a drive wheel side from a rotary, and a tension spring is provided between a rear end side of the resistance bar and the rotary transmission case. A dash prevention device characterized by being constructed such that a resistance bar is rotated counterclockwise by the action of a spring when a dash is performed during tilling to provide resistance to the ground. 2. The dash prevention device according to claim 1, wherein a wire is connected to the resistance bar, and when it is unnecessary to use the resistance bar, the resistance bar is pulled up by the wire and held. The dash prevention device for a walking-type management machine according to claim 1, wherein: 3. The walking-type management machine according to claim 1, wherein the resistance bar of the dash prevention device is formed in a plow-like shape such that a tip thereof is easily pierced into the ground. Dash prevention device.