JP2934950B2 - Substitute scraper rotor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a car rotor for wet paddy scraping as an attachment for a small tractor.

[0002]

2. Description of the Related Art In the case of a wet paddy or a super wet paddy, a float type cage roller having a structure in which each rug itself is formed not in a plate shape but in an inner space shape to prevent settlement by the total buoyancy of the rug group.
Data exists. However, in this conventional type, the basic structure of the car rotor itself is changed, so that it takes time to manufacture the car rotor and the cost is high. I haven't really seen that widespread.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and has a simple additional structure that provides buoyancy without changing the basic structure.
I will provide a.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an outer wheel comprising only an inner wheel frame 2 and a rim 5 which supports a boss 5 via a radial arm 4 on the center concave side of the rim 3. In the car rotor body 1 (the same structure as the car rotor of the conventional structure) in which the lugs 7 are attached at intervals in the circumferential direction to the space width between the wheel frame 6 and the outer peripheral surface thereof, 8a is a cylindrical body made of a polyurethane foam material having an outer diameter inscribed in the lower end edge 7a of the lug group 7 and having a fitting groove 8b on the inner side into which the boss 5 and the radial arm 4 are completely fitted. 8 is a car cage rotor having a configuration in which 8 is fitted from the outside.

[0005] In the above structure, the polyurethane foam
This is a substitute cage rotor in which a cylindrical body 8 made of a rubber material is formed to have a length that is the full width of the interval between the inner wheel frame 2 and the outer wheel frame 5 of the rotor body 1.

[0006]

As described above, the present invention has a fitting groove 8b corresponding to the frame of the car rotor main body 1 from the outside of the car rotor main body 1 without changing the conventional basic structure. Since the cylindrical body 8 made of the polyurethane foam material is united, the manufacturing is easy and the manufacturing cost is low.

[0007] Now, by connecting the scraper rotor to a traction machine such as a small tractor and running on wetlands and super wetlands,
Since the specific gravity of the cylindrical body 8 made of polyurethane foam is small, buoyancy is generated in the rotor as a whole to prevent sinking and smooth and efficient scratching can be performed. In the uniting method, the outer peripheral surface 8a has an outer diameter inscribed in the lower end edge 7a of the lug group 7, and a boss 5 and a fitting groove 8b into which the radial arm 4 is completely fitted are formed on the inner side. The cylindrical body 8 is fitted from the outside of the car rotor main body 1 so that the cylindrical body 8 is securely engaged with the car rotor main body 1 to rotate integrally, and the rotation of the rotor itself. Does not inhibit The cylindrical body 8 made of a polyurethane foam material can be easily replaced by replacement due to fatigue or breakage, and an arbitrary specific gravity can be selected according to the expansion ratio.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the drawings, reference numeral 1 designates a distance between an inner wheel frame 2 having a boss 5 supported on a center concave side of a rim 3 via a radial arm 4 and an outer wheel frame 6 consisting of only a rim. , The car rotor body 1 having lugs 7 attached at circumferential intervals. 8 is the outer peripheral surface 8a of the lower edge 7 of the lug group 7
a boss 5 and a radial groove 4b are formed in the inner side portion so as to completely fit the boss 5 and the radial arm 4.
It is a cylindrical body of polyurethane foam material having a foaming rate of 25 times and having a length of about three quarters of the entire length of the car rotor body 1.
The present invention is a car cage rotor in which the cylindrical body 8 is inserted into the frame of the car rotor body 1 from the outside and fitted in the fitting groove 8b.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view.

FIG. 2 is a side view of the inside.

FIG. 3 is a longitudinal sectional side view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Car rotor main body 2 Inner wheel frame 3 Rim 4 Radial arm 5 Boss 6 Outer wheel frame 7 Lug 7a Lower edge 8 Cylindrical body made of polyurethane foam material 8a Outer peripheral surface 8b Fitting groove

Claims (2)

(57) [Claims] 1. An inner wheel frame (2) having a boss (5) supported by a radial arm (4) on a central concave side of a rim (3).
The outer peripheral surface (8a) is provided inside the car rotor body (1) having lugs (7) attached at circumferential intervals at the interval between the outer wheel frame (6) composed of only the rim and the outer wheel frame (6). The lug (7)
Polyurethane foam material having an outer diameter inscribed in the lower end edge (7a) of the group and having a fitting groove (8b) formed in the inner side part, into which the boss (5) and the radial arm (4) are entirely fitted. A car cage rotor, wherein the cylindrical body (8) is fitted from the outside. 2. A cylindrical body made of polyurethane foam (8).
The scraper rotor according to claim 1, wherein the rotor is formed so as to have a length which is the full width of an interval between the inner wheel frame (2) and the outer wheel frame (5) of the rotor body (1).