JP2581217Y2 - Grain stalk release device of mowing unity machine - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stalk releasing device for a cutting and tying machine that cuts and binds stalks to be planted in a field.

[0002]

2. Description of the Related Art Conventionally, there has been a technique for releasing a cereal stalk bundle to the outside of a machine using a rotary-type discharging arm as compared with a crank type.

[0003]

The rotary discharge arm is provided on the door shaft, but the radius of action is restricted due to interference with the needle crank on the non-operating side, and the rotary discharge arm is not large enough to provide sufficient discharge performance. Was not.

[0004]

SUMMARY OF THE INVENTION However, the present invention provides a cereal stem releasing device for a cutting and binding machine in which a rotary releasing arm for releasing a cereal bundle is provided on a door shaft .
An arm base integral with the door and a base end
With the tip of the arm that connects to
And an upright roller is attached to the base end of the arm to release it.
In the working range of the arm, it is raised
Roller against the outer peripheral surface of the cam provided on the door shaft.
Restricts the arm tip from falling down due to the pushing reaction force of the arm
And hold the discharge arm upright in the working range while releasing
Arm with cam and upright roller in the non-operating range of the arm
Release the tipping regulation and move the release arm in the non-operating range.
Face down, the working radius is smaller than the turning radius on the working side of the tip of the release arm.
Release arm with a rotation trajectory that reduces the turning radius on the application side
The rotation of the
Reduced working radius to prevent interference with needle crank
While increasing the working radius of the release arm to improve release performance.
As well as aiming at the top, the falling mechanism of this release arm
Raise and fall the ejection arm using the pushing reaction force
Therefore , the structure can be simplified .

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a plan view of a binding device, FIG. 2 is an overall side view of a cutting and binding machine, and FIG. 3 is an overall plan view of the same. The engine (2) and the transmission (3) are mounted at the rear end of the body frame (1). In addition, a stalk raising device (6) and a raising guide (7) having a raising tine (5), a raising guide (7), a left and right front divider (8a) and a left and right side divider (8b) are provided. The pre-processing unit (9) and the mowing device (10) are connected to the binding device (4) in front of the mowing frame (1).
1) to form a fuselage, and a traveling wheel drive case (1) from an input shaft (12) of a mission (3).
3), the left and right traveling wheels (15) are pivotally supported via the axle (14) to the front end side of the traveling wheel drive case (13) integrally connected to the middle of the body frame (1) so that the vehicle travels. It is composed.

A portal-shaped support pipe (16) is fixedly provided at the rear of the binding device (4), a handle (17) extends rearward of the fuselage from the support pipe (16), and a string roll (1) is provided.
8) is provided on the upper surface side, and a support pipe (1) is provided above the traveling wheel (15) behind the binding device (4).
A string case (19) is arranged via 6).

Further, an input case (20) is erected and fixed at the rear center of the binding device (4), and the input case (20) is connected to a PTO portion of the transmission (3) via a gear case (21) and a transmission case (22). And is configured to transmit power to the binding device (4).

In the drawing, (23) is an accelerator lever,
(24) is a left and right side clutch lever, (25) is a mowing unity clutch lever, (26) is a traveling speed change lever, (2)
Reference numeral 7) denotes a forward / reverse switching lever serving also as a main clutch lever.

The binding device (4) is provided with a binding passage (2).
9) is provided in the longitudinal direction of the fuselage, and the rear portion of the binding passage (29) is connected to the left discharge passage (30) and the right discharge passage (31) provided in the lateral direction of the fuselage, and the left side is sandwiched by the binding passage (29). And a rotary release arm (3) together with a clutch door (32), a packer (33) and a needle (34).
5), a knot cover (36) for accommodating a knot building and a string holder is provided on the right side, and the bound grain stalk bundle is left or right discharged by a rotary discharge arm (35).
It is configured to discharge from (31) to the left or right side of the fuselage.

A tip guide plate (37) for supporting the tip at the time of discharge is provided above the rear of the binding device (4) via the input case (20), and a left or right discharge passage from the binding passage (29). (30) The tip guide plate (38) and the culm guide plate (3) for guiding the grain culm bundle bound in (31).
9), the guide plates (38) and (39) are rotatably supported by the input case (20), and the guide plates (38) and (39) are simultaneously rotated by operating the release direction switching lever (40). The discharge guide direction is selectively switched to the left or right by moving.

As shown in FIG. 4, the raising guide (7)
An auxiliary guide plate (41) is provided at the upper part on the rear side, and has a length that does not hinder the discharge at the left side, and wraps around the guide start end side of the tip guide plate (38) at the time of the right discharge. 41) is extended rearward of the fuselage, and is configured such that the auxiliary guide plate (41) and the guide plate (38) continuously guide the tip side of the grain stalk bundle from the raising guide (7) without interruption from the raising guide (7) when discharging to the right. doing.

At the time of discharge to the left, the tip guide plate (3)
The guide start end of (8) is wrapped around the gear case (41) on the rear upper part of the raising device (6), and the gear case (41) and the guide plate (38) raise the spike tip side of the grain stalk bundle (6).
From the binding device (4) to the gear case (41) via the drive transmission case (43).

As shown in FIG. 1, when the door (32) is in the binding passage (24) in the operative position for stopping the flow of the harvested culm, the rotary discharge arm (35) moves the binding passage (29). The release arm (35) is moved to the door (3) so that the release arm (35) is at a standby position opposite to the knot cover (36).
2) is provided integrally on the door shaft (44) substantially at right angles to the door shaft (44), and the discharge arm (35) is formed separately from the intermediate portion thereof, and is integrated with the door base (32). 35
a) Arm tip (35b) via pin (45) at the tip
The base end is rotatably connected, and the discharge arm (35) is formed to be free to fall from the middle part.

A cam (46) having a C-shaped cross section is provided on the door shaft (44), and an arm tip (35b) is provided.
An upright roller (47) is rotatably attached to the base end, and the discharge arm (35) starts to rotate from the standby position, and the bundle of grain culms after bundling from the bundling path (29) to the left or right discharging path (30).
(31), that is, the upright roller (47) is pushed by the cam (4) by the pushing reaction force within the working range of the discharge arm (35).
6) The arm is brought into contact with the outer peripheral surface to restrict the tip of the arm (35b) from falling down due to the pushing reaction force.
5) is held upright in the working range, and then the release arm (3)
5) While returning to the standby position, that is, the discharge arm (35)
The lifting regulation of the arm tip (35b) by the cam (46) and the upright roller (47) is released in the non-operating range, and the discharging arm (35) is lowered in the non-operating range. As shown in FIG. The discharge arm (35) is rotated on a rotation locus (A) such that the rotation radius (non-working radius) on the non-working side is smaller than the rotation radius (working radius) on the working side of the arm (35). Change the working radius of (35) to the knot cover (3
6), so as to prevent interference between the needle crank (48) and the discharge arm (35) disposed within the working radius on the non-operating side of the discharge arm (35), while increasing the position to overlap with the discharge arm (35). .

This embodiment is constructed as described above, and the hull of the grain culm to be taken in from between the raising device (6) and the raising guide (7) by moving the body forward is cut by the cutting device (10). In addition, when a bundle of a certain size is obtained after cutting, the bundle is bound by the binding device (4) and released outside the machine by the rotary release arm (35). By switching the respective guide plates (38) and (39) as shown by the solid line in FIG.
8) Guided by (39), discharged from the binding path (29) to the left side of the machine through the left discharge path (30), and when discharging the stalk bundle to the right side of the machine, each guide plate (38) (3)
By switching 9) as shown by the phantom line in FIG.
The grain stalk bundle is guided by the guide plates (38) and (39), and is discharged from the binding passage (29) to the right side of the machine through the right discharge passage (31).

At this time, as is apparent from the rotation trajectory (A) of the rotary discharge arm (35) of this embodiment shown in FIG. 1 and the rotation trajectory (B) of the conventional rotary discharge arm, as shown in FIG. The working radius of the rotary discharge arm (35) of the present embodiment is larger than the working radius and is large enough to wrap with the knot cover (36). Work and
The discharge arm (35) operates to a position closer to the outlet of the left or right discharge passage (30) (31), and the discharge performance is significantly improved as compared with the conventional case.

In the vicinity of the end of the range of operation of the rotary discharge arm (35), the clearance angle (θ) is ensured by the falling down of the discharge arm (35). 35) Standing angle (approximately perpendicular to the extrusion direction) of the working surface (35b ')
The structure that works effectively only in the direction of releasing the stalk bundle reduces the load in the direction of pressing the stalk against the nodule cover (36), thereby reducing the slippage of wet materials and the like. Even if the culm does not cause defects such as poor release or poor cohesion, and because the clearance angle (θ) near the end of the working range of the release arm (35) is obtained by the lodging of the release arm (35), the grain culm can be used. Entanglement is eliminated, and troubles such as dragging (pulling) of the cereal stem bundle and winding of the cereal stem around the door shaft (44) are eliminated, and the release performance is further improved.

[0018]

[Effect of the Invention] As is apparent from the above embodiment, the present invention provides a rotary release arm (3) for releasing a stalk bundle outside the machine.
5) on the door shaft (44) to release the stalk of the mowing and binding machine
In the device, the discharge arm (35) is connected with the door (32).
An integral arm base (35a) and an arm base (35a)
To connect the base end rotatably via a pin (45)
With the tip (35b) so that it can be tilted more freely than the middle,
An upright roller (47) is provided at the base end of the arm tip (35b).
Extrusion of stalk bundles within the working range of the mounting and release arm (35)
The standing roller (47) is moved by the reaction force to the door shaft (4).
4) Contact the outer surface of the cam (46) provided on
Arm tip (35b)
Regulating the discharge arm (35) upright in the working range.
On the other hand, in the non-operating range of the discharge arm (35), the cam (4)
6) and the arm tip (35) by the upright roller (47).
Release the b) lodging regulation and deactivate the release arm (35)
The arm on the working side at the tip of the discharge arm (35).
Rotation such that the radius of rotation on the non-operating side is smaller than the radius of rotation
It rotates the discharge arm (35) on the trajectory (A),
The non-working radius is smaller than the working radius of the discharge arm (35).
To prevent interference with the needle crank (48)
Release arm (35) to increase the working radius and release performance
Of the discharge arm (3)
The lodging mechanism of 5) uses the reaction force of pushing out the stalk bundle to release
The arm (35) stands up and down, making the structure simple.
It has a remarkable effect that can be achieved.

[Brief description of the drawings]

FIG. 1 is a plan view of a binding unit.

FIG. 2 is an overall side view of the cutting and binding machine.

FIG. 3 is an overall plan view of the cutting and binding machine.

FIG. 4 is an explanatory view of the release of a stalk bundle.

FIG. 5 is a plan view of a rotary discharge arm.

[Explanation of symbols]

 (35) Rotary release arm (44) Door shaft (46) Cam (48) Needle crank

──────────────────────────────────────────────────続 き Continuation of the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) A01D 39/00 A01D 59/00-59/14 A01F 12/00 310 B65B 13/00-13/34

Claims (1)

(57) [Scope of request for utility model registration] 1. A stalk release device for a cutting and binding machine, wherein a rotary release arm for releasing a stalk bundle outside the machine is provided on a door shaft .
The release arm has an arm base integral with the door,
With the arm tip that pivotally connects the base end to the base
It is formed so that it can be tilted from the middle part, and stands up at the base end of the arm tip
Attach rollers and extrude stalk bundles within the working range of the discharge arm
A cam having an upright roller provided on the door shaft by a reaction force
Abut against the outer peripheral surface, and the extruded reaction force
To prevent the arm from falling down, and keep the discharge arm upright in the working range.
Cam and upright in the non-operating range of the discharge arm
Release the restriction on the arm tip by the roller and release the arm.
Down on the working side of the tip of the release arm.
A rotation in which the radius of rotation on the non-operating side is smaller than the radius of rotation
A stalk releasing device for a cutting and tying machine, characterized in that the releasing arm is rotated on a rolling locus .