JPH0444034Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The invention is a shoot device for maize harvesters that harvest corn and forage harvesters that harvest grass (hereinafter collectively referred to as "forage harvesters"). Regarding.

(Prior Art) This type of foliage harvester is known, for example, as described in the specification and drawings of Japanese Utility Model Application No. 59-137322, and its chute device is known, for example, in Japanese Patent Publication No. 61-34777. Those described in gazettes are publicly known.

In the conventional chute device, a discharge pipe is provided on the harvester main body to project vertically upward, and a curved chute is pivotally attached to the upper end of the discharge pipe so that it can be bent inward. In order to facilitate folding of this curved chute, a gas spring was provided at the bending portion.

(Problems to be Solved by the Invention) The conventional chute device uses a gas spring to support the weight of the curved chute to facilitate the bending operation, but the gas spring is expensive and the weight of the bent chute is 30 kg. In order to support the weight of the curved chute, a large gas spring is required, resulting in an increase in weight.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a chute device for a forage harvester that has a simple structure and facilitates the bending operation of a curved chute.

(Means for Solving the Problems) The present invention is characterized in that a discharge pipe is provided on the harvester body to project vertically upward, and a curved chute is pivoted at the upper end of the discharge pipe so that it can be bent inward. In the discharge tube, an engaging portion is provided, a hook of the engaging portion that engages removably is rotatably pivoted to the curved chute, and the hook and the engaging portion are connected to each other. When the hook engages with the engaging portion, the curved chute and the discharge tube are connected in communication, and when the hook is released from the engagement, the curved chute can be bent. A handlebar is fixed to the inner surface, a handle lever is pivotally supported on the handlebar, and the hook and handle lever are interlocked and connected by a connecting means to rotate the hook.

(Function) According to the present invention, when folding the curved chute to store the forage harvester in a warehouse or the like,
Hold the handlebar in your hand and operate it by pulling the handle lever. By operating the handle lever, the hook connected by the connecting means is rotated, the engagement between the hook and the engaging portion is released, and the curved chute becomes bendable.

Thus, the curved chute can be folded by gradually moving the handlebar downward against the weight of the curved chute while supporting the handlebar by hand.

Next, in order to raise the curved chute in use, hold the handlebar in your hand and push upward to bring the discharge pipe and the opening of the curved chute into contact. At this time, the hook and the engaging portion are automatically engaged to prevent the discharge tube and the curved chute from bending.

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

In FIG. 1, reference numeral 1 denotes a tractor for both forward and reverse motion, and in the illustrated example, it is used facing backwards, and the traveling direction is the direction of arrow a in the figure. The rear of the tractor 1 (i.e.
A forage harvester 3 is attached to the front side in the traveling direction via a three-point linkage mechanism 2. A forage wagon 5 is attached to the front part (rear side in the traveling direction) of the tractor 1 via a hitch 4.

The forage harvester 3 includes a divider 6,
It has a cutting section 7, a shredding section 8, and a chute device 9,
It is driven from the PTO shaft of the tractor 1 via a transmission shaft 10.

The grass and maize in the field are cut by the cutting section 7 and shredded by the shredding section 8. The shredded grass or maize is air-transported to the chute device 9 by the wind created by the rotating blade of the shredding section 8, discharged from the tip of the chute device 9, and stored in the forage wagon 5.

The chute device 9 includes a discharge tube 12 that projects vertically upward from the upper surface of the harvester main body 11 containing the shredding section 8, and a discharge tube 12 that is attached to the upper end of the discharge tube 12 so as to be rotatable around an axis. Consisting of a rotary tube 13, a curved chute 14 that is pivotably supported on the upper end of the rotary tube 13, and a deflector device 15 that is pivotably pivoted on the tip of the curved chute 14. has been done.

As shown in FIGS. 2 and 3, the rotating tube 1
A flange 16 is formed on the upper end surface of the curved chute 14, and a flange 17 is also formed on the lower end surface of the curved chute 14. The flanges 16 and 17 are in surface contact with each other so as to be able to move toward and away from each other, and the flanges 16 and 17 are rotatably mounted on the inside of the curved chute 14 via a pin 18 at the horizontal axis. A locking means 19 is provided between the flanges 16 and 17 on the opposite side to the pin 18 side. This locking means 19 consists of a bolt 20 provided on the flange 16 of the rotating cylinder 13 in an upwardly projecting manner and a curved chute 14.
It consists of a notch 21 provided in the flange 17 and a nut 22 screwed into the bolt 20. With the flanges 16 and 17 in surface contact, the bolt 20 is inserted into the notch 21, and the nut 22 prevents the flanges 16 and 17 from separating.

A bolt 2 is attached to the flange 16 of the rotating cylinder 13.
An engaging portion 23 is formed on the lower surface near 0. A hook 24 that removably engages with the engaging portion 23 is rotatably supported on the curved chute 14.

The hook 24 is rotatably supported by a bracket 25 fixed to the curved chute 14 via a pin 26. This hook 24 is biased by a spring 28 so that its hook portion 27 always faces inward. A connecting means 29 that rotates the hook 24 against the spring 28 so that the hook 27 opens is engaged with a corner 30 of the hook 24. This connecting means 29 is made of Bowden wire, and an inner wire 31 of the Bowden wire is locked to a corner 30 of the hook 24, and an outer wire 32
is the outer receiver 3 fixed to the curved chute 14
It is locked at 3.

On the other hand, a handlebar 34 is fixed to the curved inner surface of the curved chute 14.
, the handle lever 36 is inserted through the housing 35.
is rotatably supported. The inner wire 31 is locked to the handle lever 36, and the outer wire 32 is locked to the housing 35.

Therefore, in order to bend the curved chute 14,
By gripping the handlebar 34, operating the handle lever 36, and pulling the inner wire 31,
Rotate the hook 24 to release the hook 2 of the hook 24.
7 and the engagement part 23, and the curved chute 1
4 bends are possible. (Of course, at this time, the nut 22 screwed onto the bolt 20 has been removed.) Then, by holding the handlebar 34 and moving the curved chute 14 downward while supporting its own weight, the curved chute 14 can be moved downward. 14 is rotated around the pin 18 and bent. When the handlebar 34 is bent at a predetermined angle, the tip of the handlebar 34 comes into contact with the harvester main body 11 and maintains this angle.

Next, to raise the curved chute 14, grasp the handlebar 34 and lift it upward. At this time, the outer surface of the hook portion 27 of the hook 24
However, since the outer surface of the hook portion 27 is formed into a curved surface, the hook 24 rotates against the spring 28, and the hook portion 27 contacts the engaging portion 2.
3, and both flanges 16 and 17 of the curved chute 14 and the rotating cylinder 13 are brought into surface contact. After that, screw the nut 22 onto the bolt 20, and
6, 17 will be reliably prevented from leaving.

Note that the present invention is not limited to the above embodiments.

(Effects of the invention) According to the invention, the structure is simplified, the bending operation of the curved chute is facilitated, and it is put to practical use and exhibits great effects.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is an enlarged view of the main part, and FIG. 3 is a front view of the same. 11... Harvester main body, 12... Discharge tube, 1
4... Curved chute, 23... Engaging portion, 24...
Hook, 29...Connection means, 34...Handlebar, 36...Handle lever.

Claims (1)

[Scope of Claim for Utility Model Registration] A harvester body in which a discharge tube is provided vertically protruding upward, and a curved chute is pivotally attached to the upper end of the discharge tube so as to be bendable inwardly of the curve. a hook that removably engages with the engaging portion is rotatably pivoted to the curved chute, and the hook and the engaging portion are arranged such that the hook engages with the engaging portion; The curved chute and the discharge pipe are connected in communication with each other, and the curved chute is provided in a relationship position where the curved chute can be bent by releasing the engagement, and a handlebar is fixed to the curved inner surface side of the curved chute, and the handle bar is fixed to the curved inner surface side of the curved chute. A chute device for a forage harvester, characterized in that a handle lever is pivotally supported on a bar, and the hook and handle lever are interlocked and connected by a connecting means to rotate the hook.