JPS59357Y2 - Subsoiler corrugate pipe attachment device - Google Patents

Description

[Detailed description of the invention] This invention connects a bullet body to the lower part of a blade suspended underground, and pulls this bullet body with a powered agricultural machine to form a culvert underground. By burying corrugated pipes,
This invention relates to a corrugated pipe attachment device for a subsoiler that improves the ventilation and drainage of ridges.

Conventionally, in order to attach a corrugated pipe to the projectile body of such a subsoiler, a pin was fixed to the rear part of the projectile body integrally with the corrugated pipe, but the traction resistance at the fixed part of the pin was In addition, there was a drawback that the corrugated pipe could accidentally fall off during towing.

The present invention was proposed to eliminate these drawbacks, and allows the tip of the corrugated pipe to be easily and reliably inserted into and removed from the rear of the subsoiler's bullet body, has low traction resistance, and is easy to use during towing. To obtain a subsoiler Corday 1-pipe attachment device that will not fall off.

Hereinafter, the structure of the present invention will be described in detail with reference to the attached embodiment drawings. In FIG.
At the rear of the blade body 1, a bullet body 3 formed in a bullet shape as shown in the figure is attached to the lower end of the blade body 1 with a chino 4, a rolling contact plate 5 is attached to the front upper part of the blade body 1, and a shaft support 6a is provided at the lower part. The upper part of the blade 1 is attached to the lower part of the mounting frame 6, the hitch pins 8, 8 are protruded to the left and right from the lower end of the mast 7.7, and the frame is formed by horizontally arranging two elongated plates. Attach the front ends of the masts 7 and 9 to the inner lower end of the mast 7 and 7, and attach the upper and lower shaft supports 10a, respectively.
, 10b is attached to the inner surface of the frame 9.9, and the shaft support 6a of the mounting frame 6 is fitted between the brackets 10.10 and 10.10.
The blade 1 is formed so as to be rotatable in a vertical plane along the frames 9, 9 around a pin shaft 11 into which the blade 1 is inserted horizontally,
A drive shaft 12 provided longitudinally inside the frames 9, 9 is supported by bearings 13, 13.
A disc cam 14 with an oval profile is attached to the rear end, and the base of an L-shaped crank 15 is inserted into the upper shaft support 10a of the bracket 10, and the crank 1 is
5 is pivotally mounted so as to be rotatable in a vertical plane parallel to the rotating plane of the blade body 1, and a roller 17 capable of rolling in contact with the disk cam 14 is provided at the front end of the horizontal arm portion 15a of the crank 15. Membrane part 1
5a, and a roller 18 is pivoted to the vertical arm 15b of the crank 15 so as to be rotatable parallel to the pin shaft 16, and is erected at the rear of the frames 9, 9. The compression spring 20 interposed between the spring receiver 19 and the upper end of the mounting frame 6 keeps the contact plate 5 in constant contact with the roller 18, so that the rotation of the disc cam 14 causes the crank 15 to swing up and down. A cam mechanism 21 is formed to swing the blade body 1 back and forth, and hitch pins 8, 8 are inserted into the lower link 22.22 pivotally connected to the rear lower part of the power agricultural machine. 1 Hetsu printer 23, which is pivotally connected to the rear part.
A vibrating subsoiler 1 configured to have the upper part of the mast 7 pivotally attached to 23 and drive the drive shaft 12 to rotate via a flexible transmission shaft 24 connected to the PTO shaft of the power agricultural machine, or a blade suspended underground. In a fixed subsoiler which is towed by a power agricultural machine without vibrating the body, a male threaded portion 3a as shown in FIG. 2 is carved in the rear part of the projectile body 3.

The outer diameter and pitch of this male threaded portion 3a are configured such that it can be screwed onto the inner peripheral portion of the corrugated pipe 25, and the tip of the corrugated pipe 25 is screwed onto this male threaded portion 3a.

On the other hand, the fixing tool is formed into a nut 26 on the nut 1 as shown in FIG. As shown in the figure, attach the nut 26 to the male threaded part 3 of the bullet body 3.
Screw it onto the tip of the corrugated pipe 25 screwed onto a.

If this nut 26 is formed into a round nut shape with a smaller diameter than the bullet body 3, the traction resistance can be reduced without impairing the straightness of the bullet body 23.

In addition, there is a notch 2 at the inner circumference of the front end of the nut 26 as shown in the figure.
6a, the corrugated pipe 25 can be attached without any problem even if the tip of the pipe 25 is slightly deformed.

Further, when the nut 26 is formed into a round nut shape, if a hole 26b as shown in the figure is bored in the rear end of the nut 26, the nut 26 can be easily screwed on and removed using a tool such as a cannibal spanner.

FIG. 4 shows an example in which such a fixture is formed into a cylindrical body 27, and this cylindrical body 27 is fitted into the tip of a corrugated pipe 25 screwed onto the male threaded portion 3a.

The inner diameter of this cylindrical body 27 is formed to be approximately equal to the outer diameter at the peak of the corrugated pipe 25, and a bolt 28° 28 is inserted into a mounting hole bored parallel to the direction of the cylinder core of the cylindrical body 27. Attach to the rear.

By making the outer diameter of the cylindrical body 27 smaller than that of the bullet body 3, the traction resistance can be reduced without impairing the straightness of the bullet body 3.

In the present invention constructed as described above, the subsoiler blade 1 and digging body 2 move forward while crushing the plowing platform in the field while being towed by the power agricultural machine.

The bullet body 3 connected to the blade body 1 forms an underdrain with a substantially circular cross section underground, and the corrugated pipe 25 is buried in this underdrain.

In the present invention, which operates in this way, a fixing device is fitted to the tip of the corrugated pipe 25 screwed to the male threaded portion 3a formed at the rear of the bullet body 8, so that the corrugated pipe 25 is fixed in the radial direction. This has the effect of preventing deformation.

Therefore, the corrugated pipe 25 will not fall off from the male threaded portion 3a of the bullet body 3 unless the corrugated pipe 25 is rotated relative to the bullet body 3 by the number of threads of the male threaded portion 3a.

In addition, such a fixing device can be attached to a nut 2 as shown in FIG.
6, the corrugated pipe 25 can be installed without any problem even if its tip is widened as shown in FIG. Even if the spiral portion at the tip of the corrugated pipe 25 is slightly deformed, the corrugated pipe 25 can be reliably attached.

As described above, the present invention allows the tip of the corrugated pipe to be easily and securely inserted into and removed from the rear part of the bullet body of the subsoiler.
Since there are no protruding parts such as pins, the traction resistance is small, and the traction device does not fall off during traction, resulting in significant practical effects.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention; Fig. 1 is a side view of the subsoiler with the left frame removed;
FIG. 3 is a sectional view of a main part, and FIG. 4 is a sectional view of a main part in another embodiment. Description of symbols 3... Bullet body, 3a... Male screw part.

Claims (1)

[Scope of utility model registration request] In a subsoiler in which a corrugated pipe is buried while towing a bullet body 3 underground to form a culvert,
A male threaded portion 3a is carved in the rear part of the bullet body 3, and the tip of a corrugated pipe is screwed onto the male threaded portion 3a, and a fixing device is fitted to the tip of the corrugated pipe. )・A subsoiler corrugate pipe attachment device characterized by being configured to fix the pipe.