JPH0433728Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field) This invention is to press down the bed soil inside the seedling box by bringing a crushing body into contact with the horizontal frame on the rear side of the seedling box that can be transported on the seedling box transport device. The present invention relates to a compaction body of a bed soil compaction device that has been developed.

(Prior art) Many seedling boxes are made of resin molded products, and many of them are molded with cutout steps and sloped parts for stacking during box storage and when molding. Some have cut-out steps on the inside upper part of the horizontal and vertical frames for stacking and storing seedling boxes. If the above-mentioned type of soil compaction device is used for such a seedling box, the tip of the compaction body will get caught in the notch step of the horizontal frame, making it impossible to continue downward compaction.

(Problems to be solved by the invention) In the case of the above-mentioned conventional technology, the pressing body gets caught in the stacking notch step, which causes the entire machine to stop, the soil finish on the bed to be disturbed, and the seedling box to be damaged. In some cases, the suppression device according to the present invention could not be used, or the amount of soil placed in the seedling box had to be excessively increased or decreased.

(Means for solving the problem) In the present invention, the compaction body of the bed soil compaction device is
A guide piece is provided so as to protrude downward from the pressing surface, and to come into contact with the stacking notch step on the inside upper part of the horizontal frame on the rear side of the seedling box before the pressing surface when the pressing is lowered.
The protruding lower end of the guide piece is rounded enough to slide down against the abutting stacking notch step, so that it can be compressed without affecting the stacking notch step.

(Operation) The seedling box filled with bed soil is transported on the seedling box transport device. During this transportation process, the general area of the seedling box, except for the space near the front and rear horizontal frames, is subjected to the pressure action of the pressure roll. Next, the suppressing action of the suppressing body according to the present invention is applied to the vicinity of the rear frame of the remaining end suppressing portion. That is, when the pressing body is lowered and pressed down along the horizontal frame on the rear side of the seedling box being transported, the rounded lower end of the guide piece comes into contact with the stacking notch step at the upper inner side of the horizontal frame. As the seedling box moves, the crushing body continues to descend and try to crush the bed soil from above, but since the protrusion at the lower end of the guide piece is rounded, it can slide down smoothly and crush the soil from above. The pressing body and the guide piece smoothly slide down without getting caught in this notched step as in the case of 2. The pressing body descends to a preset position and is securely pressed.

(Example) A is a soil compaction device that can implement the present invention. B
is the bed soil supply device, C is the leveling rotating brush, and D is the leveling rotating brush.
is a pressure roll, and E is a seedling box conveyor.

The seedling box transport device E is configured to transport the seedling box 1 to be placed thereon from the right to the left in FIG.

This seedling box 1 has stacking notch steps 1c, 1c formed at the upper inner sides of the front and rear horizontal frames 1a, 1b.

Reference numeral 2 denotes a crushing body of the soil crushing device A, and the crushing body 2 has a connection part 2a with the operating mechanism 3 in its upper part,
A pressure surface 2b is formed at the lower part, and its width is made to correspond to the inner width of the seedling box 1.

The drive source of the actuation mechanism 3 is made to make use of the movement of the horizontal frame 1b by bringing the crushing body 2 into contact with the horizontal frame 1b on the rear side of the seedling box 1 which is conveyed on the seedling box conveying device E.

The operating locus of the operating mechanism 3 and the suppressing body 2 is such that as the seedling box 1 moves, the suppressing body 2 hits the horizontal frame 1b.
As the movement further progresses, the suppression body 2 is suppressed to a predetermined suppression depth by the actuating mechanism 3, the connection part 2a, and the suppression guide (not shown). 2a is removed, the suppressing body 2 rises along the elongated hole of the operating mechanism 3, and the horizontal frame 1
a and 1b and return to the original position, then move to the seedling box 1 and wait to repeat the operation again.

A plurality of guide pieces 2c, 2c are arranged on the suppressing body 2 in the width direction.

The guide pieces 2c, 2c are plate-shaped and project downward from the pressing surface 2b.

The extent of this protrusion is rounded enough to smoothly slide down the notch step for stacking, so as to avoid carving too deep grooves in the bed soil, and also to avoid scars on the surface of the bed soil when the compaction body 2 is not compacted. The dimensions should be such that it does not get stuck.

Further, the guide pieces 2c, 2c are formed so as to come into contact with the stacking notch portion 1c at the inner upper part of the horizontal frame 1b on the rear side of the seedling box 1 before the pressing surface 2b when the seedling box 1 is pressed down.

The protruding lower end portions 2c of the guide pieces 2c, 2c are rounded so as to smoothly slide down against the abutting stacking notch step portion 1c. The degree of roundness is such that it has a radius larger than the depth of the notch step portion 1c.

(Effect of the invention) Therefore, according to the compaction body with a guide piece of the present invention, even when compacting the bed soil in a seedling box that forms a notch step for stacking etc., the compaction body does not fit into the notch step for stacking etc. Suppression is performed reliably without getting caught.

[Brief explanation of drawings]

Fig. 1 is a side sectional view of the bed soil supply work device equipped with the bed soil compaction device according to the present invention, Fig. 2 is an enlarged side sectional view of the main parts of the same, and Fig. 3 is a perspective view of the compaction body. . Explanation of the main symbols in the drawings, A...Soil compaction device,
E... Seedling box transport device, 1... Seedling box, 1b... Rear side frame as above, 1c... Notch step part as above, 2...
Suppressing body, 2b... Suppressing surface, 2c... Guide piece, 2
c1...Protruding lower end portion same as above.

Claims (1)

[Scope of utility model registration request] This is a bed soil compaction device that is designed to compact the bed soil inside the seedling box by bringing a compacting body into contact with the horizontal frame on the rear side of the seedling box that can be transported on the top of the seedling box transport device. In the case of using a box, the pressing body is provided with a structure that protrudes downward from the pressing surface, and when the pressing body is lowered, comes into contact with the notch step on the inside upper part of the horizontal frame on the rear side of the seedling box before the pressing surface, A guide piece is provided so that it can slide down smoothly and the suppressing operation can continue, and the protruding lower end of the guide piece is rounded so that it can smoothly slide down against the abutting notch step. 1. A compacting body of a bed soil compacting device, characterized in that it is composed of a thin plate with a height that does not obstruct the movement of a seedling box, and has a plurality of guide pieces arranged parallel to the moving direction of a seedling box.