JPH0140427Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a fertilizer applicator that is attached to the front of a tractor and spreads fertilizers and improvers during plowing operations.

[Conventional technology and problems]

The fertilizer applicator, which is attached to the front of the tractor and spreads fertilizer, uses a shutter to open and close the dispersion port provided at the bottom of the hopper, and the fertilizer that flows out of the dispersion port is guided by a hose placed directly below and spread on the ground. I'm starting to do that.

By the way, if a fertilizer guiding hose is attached to the bottom of the hopper to prevent the sprayed fertilizer from scattering, if there is a protruding part such as a ridge or ridge on the ground, the lower end of the hose will collide with this, causing the hose to become deformed. This may cause problems such as damage to the mounting part.

In order to solve this problem, the present applicant has applied for a fertilizer application machine that releases the impact applied to the lower end of the hose when the tractor moves forward by rotating the hose backward, thereby preventing deformation or damage of the hose. Showa 60-
This was already proposed in No. 85864 (publication of Utility Model Publication No. 63-40093).

By the way, during plowing work with a tractor, it may be necessary to perform not only forward movement but also rearward movement in order to change direction, etc., and for this reason,
As described above, in a structure in which the hose rotates only in one direction backwards, a new problem arises in that the hose is deformed or damaged when it moves backward and climbs over a protruding part such as a ridge or ridge.

[Purpose of invention]

This idea was made to solve the problems mentioned above, and it is a fertilizer application that allows the hose to escape smoothly even when moving in either the forward or backward direction, and prevents the hose from deforming or breaking. The purpose is to provide opportunities.

[Means for solving problems]

In order to solve the above-mentioned problems, this invention involves pulling up the front and rear of the hose mounting plate placed at the bottom of the hopper using springs stretched between the hopper and the front and back of the hose mounting plate. The structure is such that each is supported by a separable hinge provided between the two.

[Effect]

If the lower end of the hose collides with a protruding part of the ground when the tractor is moving forward or backward, the separable hinge located on the opposite side of the collision will act as a fulcrum and stretch the spring on the collision side, causing the hinge to separate and the hose to separate. It rotates to release the impact, and when it passes the protrusion, it rotates in the return direction due to the pulling force of the spring, and the separable hinges are automatically connected.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

As shown in the figure, the hopper 1 is formed into a horizontally elongated shape with a narrowed bottom, and spray ports 2 are provided at regular intervals in the longitudinal direction at the bottom of the hopper 1, and a shutter 3 is provided on the lower surface of the bottom of the hopper 1 and is movable in the longitudinal direction. It is installed so that

The shutter 3 is provided with adjustment ports 4 at equal intervals to the spray ports 2, and by moving the shutter 3 using a motor M provided outside the hopper 1 and a screw-type feed mechanism 5, the adjustment port 4 allows the spray ports to be opened. 2 can be opened/closed and the degree of opening can be adjusted.

A rubber beater 6 rotated by a motor is installed inside the hopper 1 at a position directly above the spraying port 2 to prevent the bridging phenomenon of the fertilizer from occurring within the hopper 1 and to ensure smooth spraying.

A gutter-shaped hose attachment plate 7 is disposed in the longitudinal direction of the lower part of the hopper 1, and the upper end of a hose 8 extending downward is fixed to this plate 7 at a position directly below each spraying port 2. This hose 8 is designed to guide and spread the fertilizer on the ground.

The front and rear of the hose mounting plate 7 are each pulled up by a spring 9 provided between the hose mounting plate 7 and the hopper 1, and furthermore, the front and rear of the hose mounting plate 7 are each supported by a separable hinge 10 provided between the hopper 1 and the hopper 1. There is.

As shown in FIG. 4, the separable hinge 10 includes a first hinge 13 formed by bending a circular shaft portion 12 at the tip of a band-shaped metal plate 11, and a metal plate 14 wider than the first hinge 13. A cylindrical part 15 having an inner diameter into which the cylindrical part 12 fits is bent at the tip thereof, and a window having a width and length such that the cylindrical part 12 fits loosely into the peripheral wall of the cylindrical part 15 is formed. It is configured in combination with a second hinge 17 provided with a hole 16.

As shown in FIGS. 1 and 2, the first hinge 13 has a circular shaft portion 12 on the side of the hose mounting plate 7.
The second hinge 17 fixes the rear end bent portion 18 of the metal plate 14 to the flange portion 19 of the hopper 1, and the cylindrical portion 15 at the tip is fixed in a horizontal state so as to protrude outward from the oblique upper part. The window hole 16 of the cylindrical part 15 in the second hinge 17 is fixed to be located below the flange part 19 when the hinge 17 is attached to the hopper 1, as shown in FIG. It is located in the half.

Due to the arrangement of both hinges 13 and 17 as described above and the pulling up of the hose mounting plate 7 by the spring 9, the circular shaft portion 12 of the first hinge 13 is aligned with the window hole 1.
6 is fitted into the cylindrical portion 15, and the upper outer circumferential surface of the cylindrical shaft portion 12 is rotatably supported by pressure contact with the inner circumferential surface of the upper half of the cylindrical portion 15, and both hinges 13 and 17 are connected, and the hose The mounting plate 7 is placed in a horizontal state directly below the hopper 1 by being supported front and rear by the separable hinge 10 in the above-mentioned connected state.

The hose attachment plate 7 pulled up by the spring 9 is restricted to the raised position by the cylindrical portion 12 of the first hinge 13 being pressed into the cylindrical portion 15 of the second hinge 17, and , the separable hinge 10 has a circular shaft portion 12 of the first hinge 13.
can be freely separated downward from the window hole 16 with respect to the second hinge 17, so that the hose attachment plate 7 can be pulled down against the spring 9.

In the separable hinge 10, when both hinges 13 and 17 are connected, the first hinge 13 is attached to the cylindrical portion 15 of the second hinge 17 fixed to the hopper 1.
, and the window hole 16 is centered around the axis of the circular shaft portion 12.
This rotational axis becomes a fulcrum for tilting the hose attachment plate 7 together with the hose 8.

As described above, the front and rear parts of the hose mounting plate 7 are each pulled up by the springs 9 and are supported by the separable hinges 10, so that the hose mounting plate 7 has pivot points that can be freely separated from the front and rear. This means that it can be rotated in either direction.

Although not shown, in the hopper which is long in the transverse direction, the hose attachment plate 7 is pulled up at a plurality of places at the front and back by springs 9 and supported by a separable hinge 10.

The fertilizer applicator of this invention has the above configuration,
During normal fertilizer application, as shown by the solid line in FIG. The fertilizer discharged through the port 2 and the control port 4 is guided and spread on the ground.

When the tractor is moving forward or backward,
When the lower end of the hose 8 comes into contact with the protruding part A on the ground, the hose 8 tilts and escapes together with the hose mounting plate 7, passes over the protruding part A without any trouble, and after passing, the spring 9 It returns to the hanging position by pulling up.

That is, the dashed line in FIG. 1 shows the case where the lower end of the hose 8 comes into contact with the protrusion A when the tractor moves backward, and the hose 8 is connected to the separable hinge located at the front of the hopper 1 on the right side of the figure. Rotate around the fulcrum,
The releasable hinge located at the rear of the hopper 1 separates.

On the contrary, the two-dot chain line in the figure shows the case where the lower end of the hose 8 comes into contact with the protruding part A when the tractor moves forward, and the hose 8 is located at the rear of the hopper 1 on the left side of the figure. The hopper rotates about the separable hinge as a fulcrum, and the separable hinge located at the front of the hopper 1 separates.

In this way, when the lower end of the hose 8 comes into contact with the protruding portion A, the lower end of the hose 8 is released by tilting, and the hose 8
to prevent deformation or damage.

〔effect〕

As described above, according to this invention, the fertilizer spreading hose placed at the bottom of the hopper can be tilted in either the front or back direction, so if the hose comes into contact with a protruding part of the ground, it can be tilted in either direction. However, the hose can be reliably released, and deformation or damage to the hose and the hose attachment part can be prevented.

[Brief explanation of drawings]

Figure 1 is a vertical side view of the fertilizer applicator according to this invention.
FIG. 2 is an enlarged sectional view of the same essential parts, FIG. 3 is a front view of the same essential parts, and FIG. 4 is an exploded perspective view of the hinge portion. 1...Hopper, 2...Spraying port, 3...Shutter, 4...Adjustment port, 7...Hose mounting plate, 8...Hose, 9...Spring, 10...Separable hinge, 12...Yen Shaft part, 13...first hinge, 15...cylindrical part, 16...window hole, 17...second hinge.

Claims (1)

[Scope of claims for utility model registration] (1) At the bottom of the hopper formed at the bottom constriction,
In a fertilizer applicator that is equipped with a spraying port that is opened and closed by a shutter, and a hose that extends downward is placed directly below the spraying port, springs are stretched between the front and rear of the hose mounting plate located at the bottom of the hopper. 1. A fertilizer application machine, which is pulled up by a hopper, and is further supported by separable hinges provided between the front and rear of a hose mounting plate and a hopper. (2) The separable hinge is a first hinge having a cylindrical portion at its tip, and a cylindrical portion whose tip fits and supports the cylindrical portion, and the cylindrical portion loosely fits into the peripheral wall of the cylindrical portion. The fertilizer applicator according to claim 1, which is registered as a utility model and is formed in combination with a second hinge provided with a window hole of the same size.