JPS5921640Y2 - Support device for ridge film - Google Patents

Description

[Detailed Description of the Invention] The present invention is characterized in that the support pressure of the support roller can be adjusted appropriately, and the iron film can be coated on the ridges with good tension and coated in an orderly manner. The present invention relates to a support device for a film for use.

Conventional iron film is coated with what is commonly called mulch, but during this process, when the film is fed out without any resistance, both sides of the film are pulled by treadling wheels.
Many wrinkles are formed in the horizontal direction.

On the other hand, if there is too much resistance when the film is fed out, wrinkles will form in the longitudinal direction.

Therefore, in the conventional method, the support rollers of the film on both sides are pressed against the inverted rods provided on both sides of the main support rod by non-adjustable springs to provide resistance.
Alternatively, a non-adjustable spring is placed between the inverted rod and the support roller, and the support roller is pressed inward to provide resistance, thereby providing appropriate resistance to the film feedout and restricting the film feedout. This was done to prevent wrinkles from forming on the film.

However, even if the resistance is just right when the diameter of the film is large, when the diameter becomes small, the resistance increases with the same spring strength, resulting in the formation of many vertical wrinkles in the film.

Therefore, in order to solve this problem, the width between the hanging parts of the reverse-shaped rods was adjusted by loosening the screws that fixed the reverse-shaped rods on both sides of the main support rod, but this operation was also difficult. It is difficult and
It had the disadvantage that it could not be finely adjusted and could not be adjusted as desired.

Therefore, in the present invention, an inverted rod that can be fixed to an appropriate length is provided at the end of the main support rod, a spiral hole is provided in the middle of the hanging part, and the bolt with a head is equipped with a support roller, an elastic Insert the bolt through the lower insertion hole of the plate, fix the end of the bolt to the lower part of the hanging part, and hold it at the upper part of the hanging part so that the lower part of the elastic plate swings in the axial direction of the bolt 8, By screwing the adjustment screw into the spiral hole and making the end contact the elastic plate, by turning the adjustment screw from side to side, the tip can be extended or retracted inward to adjust the elasticity. The pressure below the plate, that is, the support roller, is appropriately changed to improve the film's unwinding resistance, and the film is coated in an orderly manner, thereby solving the above-mentioned drawbacks.

To explain its structure with reference to the drawings, reference numeral 1 is a hollow main support rod, into which horizontal parts 3 of an inverted rod 2 are inserted, and screws provided near both ends of the main support rod 1 are inserted. 4 makes it possible to test the length as appropriate.

A through hole 6 is provided near the lower end of the hanging portion 5 of the inverted rod 2, and a spiral hole 7 is provided above the through hole 6.

Reference numeral 8 denotes a bolt with a head, and a small diameter portion 9 is formed at one end, and a spiral 10 is provided.

11 is a coil spring with weak elasticity, 12 is a support roller,
A collar 13 is formed on one side, and a groove 14 is formed on the outside of the collar 13.
is provided.

15 is a sliding washer, and a leg 16 is provided on one side.

Reference numeral 17 is a washer, and reference numeral 18 is a highly resilient elastic plate made of steel or the like, which is bent downward in a dogleg shape and is provided with an insertion hole 19 through which the bolt 8 can be inserted.

The bolt 8 has a coil spring 11 from the head side. The washer 17, the support roller 12, the sliding washer 15 (legs 16 are inserted into the grooves 14), the washer 17, and the insertion hole 19 of the elastic plate 18 are inserted, and the small diameter portion 9 of the bolt 8 is inserted into the through hole 6 to form a spiral 10. The nut 20 is tightened, and the upper part of the elastic plate 18 is loosely inserted into a frame-shaped part 21 formed above the hanging part 5.

An adjustment screw 22 is screwed into the spiral hole 7, and its end is in contact with the elastic plate 18.

23 is a locking washer interposed between the hanging portion 5 and the nut 20.

24 is a film, 25 is a winding core of the film 24, and 26 is a support roller attached to the inverted rod 2 on the other side of the main support rod 1.

In addition to the method described above, as a method for supporting the upper part of the elastic plate 18, there is also a method in which the upper end of the elastic plate 18 is pivotally attached to the hanging portion 5.

In that case, the lower insertion hole 19 is formed into a vertically elongated oval shape.

Since the present invention has the above-mentioned structure, the screw 4 is loosened to expand and contract the inverted rod 2, and both ends of the core 25 of the film 24 are inserted between the support roller 12 and the other support roller 26. When the screw 4 is tightened and the adjustment screw 22 is turned,
The elastic plate 18 is pushed out downwardly and inwardly with its upper end as a fulcrum (frame-shaped part 21), and elastically presses against the support roller 12, causing appropriate resistance to rotation of the support roller 12 and unwinding the film 24. The film can be coated on the ridges in an orderly manner by applying appropriate tension.

Initially, the diameter of the film 24 is large, and the support roller 12.
26 does not cause wrinkles in the film 24 even when covered with mulch due to its moderate resistance, but as the diameter of the film 24 becomes smaller, the resistance increases, making it difficult to feed out the film 24, and causing vertical wrinkles in the film 24. This can cause inconvenience.

In that case, turn the adjusting screw 22 a little to adjust the elastic plate 18.
The pressure of the film 24 is weakened, the tension of the film 24 is weakened, and the film 24 is again fed out with appropriate tension, allowing for orderly covering.

In the past, if the tension in the film increased and wrinkles formed, the width between the reversed rods 2 and 2 of the main support rod 1 was adjusted, which was difficult and inconvenient to adjust. Since the present invention can be adjusted by turning only the adjustment screw 22, it can be easily carried out as needed even when the film 24 is being coated with a mulch, and the film can be coated in an orderly manner.

In addition, the present invention can be simplified by providing the elastic plate 18 and the adjustment screw 22, and its operation is reliable and fine adjustment can be made, and can be appropriately performed even while the multi-purpose vehicle is running.

As described above, the present invention has advantages such as easy work, improved efficiency, simple structure, and low cost.

The coil spring 11 is used to automatically move the support roller 12 to the right in FIG. 2 when the pressure of the elastic plate 18 is loosened. It is not an essential requirement for achieving the goal.

Note that if the elastic plate 18 is an ordinary metal plate and a coil spring is interposed between the metal plate and the support roller 12, the elastic force will be even better.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention.
The figure is a partially longitudinal front view, Figure 2 is a longitudinal front view of the main part, and Figure 3 is a longitudinal front view of the main part.
The figure is a perspective view during assembly, FIG. 4 is a longitudinal sectional front view of the support roller, and FIG. 5 is a side view thereof. 1... Main support rod, 2... Reverse rod, 5
...Drooping part, 7...Spiral hole, 8...
...Bolt, 12...Support roller, 18.
...Elastic plate, 19...Insertion hole, 22...
...There is no adjustment.

Claims (1)

[Scope of utility model registration request] An inverted rod 2 that can be fixed to an appropriate length at the end of the main support rod 1
A spiral hole 7 is provided in the middle of the hanging part 5, and the bolt 8 with the head is inserted through the support roller 12 and the lower insertion hole 19 of the elastic plate 18, and the end of the bolt 8 is inserted into the hanging part 5. 5, the upper part of the elastic plate 18 is held on the upper part of the hanging part 5 so that the lower part of the elastic plate 18 swings in the axial direction of the bolt 8, and the adjusting screw 22 is screwed into the spiral hole 7. A supporting device for an iron film, characterized in that the ends thereof are brought into contact with an elastic plate 18.