JPS632856B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an automatic sending device for a seedling box. As shown in FIG. 1, the already proposed automatic sending out device for seedling boxes 3 lifts the rear end of the second tier of seedling boxes 3b from the bottom of the seedling boxes 3 stacked on the guide rail 1 with a holder 9 to release the seedling boxes 3. By tilting to the rear height, only the lowest seedling growing box 3a is pushed and moved by the piece 8 attached to the drive chain 6 arranged between the guide rails 1 on both sides, and the stacked seedling growing boxes 3 are automatically sequentially sequentially from the bottom. It was designed to be sent out.

However, in order to prevent the synthetic resin seedling boxes 3 from shifting laterally when the seedling boxes 3 to be used are piled up, recesses 31 are provided at four corners of the top, and protrusions 32 are provided at the bottom corresponding to the recesses 31. If the seedling box 3b in the second row from the bottom is
Even if the seedling box 3b is lifted up to the rear height, the front end of the seedling box 3b is connected to the lowermost seedling box 3a with the recess 31 and protrusion 32 fitted, so the lowermost seedling box 3a
There was a problem in that it was impossible to push and move the piece with piece 8.

This invention was made in order to solve the above-mentioned problems of the conventional automatic sending device for a seedling box.

An embodiment of the present invention will be described based on FIGS. 2 to 5. 1 and 1 are guide rails placed on both sides of the base frame 2, 3 is a seedling box;
Cross section L where the corners stacked on 1 are erected on base frame 2
It is held by shaped supports 4. Further, the front support 4 is provided with a notch 5 that allows only the lowest seedling growing box 3a to pass through.

Reference numeral 6 denotes a drive chain disposed between the guide rails 1, 1, which is stretched endlessly between sprockets 7, 7 provided at the front and rear of the base frame 2, and an arbitrary number of pieces 8 are attached at appropriate intervals. ing.

Reference numeral 9 is a bifurcated boxwood with branches 9a and 9b, which is swingably attached to a horizontal bar 10 that is laterally supported on the base frame 2 behind the heavy stacking part of the seedling nursery box 3, as described below. The piece 8a located on the rear side of the stacked seedling growing boxes 3 advances and branches 9a via its arm 30.
If it comes into contact with the branch 9b, it will move to the second seedling box 3 from the bottom.
It has a mechanism to lift the rear end of b.

On the other hand, a horizontal horizontal bar 11 is rotatably supported horizontally on the base frame 2 in front of the heavy loading portion of the seedling raising box 3, and is connected to and detached from the front end of the second seedling raising box 3b from the bottom in the middle of the horizontal rod 11. Two possible claw pieces 12 are provided protrudingly. Further, an arm piece 13 is fixed to the outer end of the horizontal bar 11 in a perpendicular direction, and a coil spring 14 is stretched between the upper end of the arm piece 13 and the base frame 2.
2 is removed from the seedling box 3b, horizontal bar 1
1 can be maintained in a stable state.

Further, a lever 15 is horizontally pivoted at the central portion 16 to the base frame 2 in front of the heavy stacking portion of the seedling raising box 3. The lever 15 has an inner end 17 that can engage with a piece 8b located at the front of the seedling raising box 3, and a spring 18 is stretched between the lever 15 and the base frame 2 at the middle part on the inner end 17 side. ing. Furthermore, lever 15
is constructed such that its outer end 19 faces the lower end 20 of the arm piece 13.

When the piece 8a moving forward behind the stacked seedling boxes 3 comes into contact with the branch 9a of the box 9, the piece 8b located in front of the seedling box 3 engages with the inner end 17 of the lever 15. can be matched.

Furthermore, when the piece 8a moves forward, the kelliage 9 rotates and the branch 9b lifts the rear end of the second seedling box 3b from the bottom, and at the same time, the piece 8b also moves forward and the lever 15 moves to the position shown in FIGS. 4 and 5. It is rotated around the pivot 16 as shown by the chain line. Then, the outer end 19 of the lever 15 comes into contact with the lower end 20 of the arm piece 13, and since the horizontal bar 11 rotates together with the arm piece 13 as shown by the chain line, the two claw pieces 12 lift the front end of the seedling box 3b. In this way, as shown in FIG. 2, the rear end and front end of the seedling growing box 3b are lifted at the same time, and the seedling growing box 3b is completely separated from the bottom seedling growing box 3a. The fitting with the protrusion 32 is released. If piece 8a continues to move forward, the bottom seedling box 3
a is easily pushed forward.

As described above, according to the present invention, even when the seedling growing boxes 3 used are provided with the recesses 31 and the protrusions 32 so that they do not shift sideways when stacked, the recesses 31 and the protrusions 32 are fitted together. , when the bottom seedling growing box 3a is pushed and moved by the piece 8a, the rear and front ends of the second seedling growing box 3b from the bottom are lifted at the same time, unlike the conventional method where only the rear end is lifted. Unlike the case where the front ends of the seedling growing boxes 3a and 3b are fitted together and the seedling growing box 3a is not pushed and moved, the seedling growing box 3a has the feature that it can be easily pushed and moved by the piece 8a.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the feeding state of a conventional automatic feeding device for a seedling box, and FIGS. 2 to 5 are for explaining embodiments of the automatic feeding device for a seedling box according to the present invention. 2 is an overall side view, FIG. 3 is a plan view of the same as above, FIG. 4 is a side view showing the operating state of essential parts, and FIG. 5 is a plan view of same as above. 1... Guide rail, 3... Seedling box, 3b...
Second seedling box from the bottom, 6... Drive chain, 8
... Piece, 8a... Piece located at the rear, 8b... Piece located at the front, 11... Horizontal bar, 12... Claw piece, 13... Arm piece, 14... Coil spring,
15... lever, 18... spring, 19... outer end,
20...lower end.

Claims (1)

[Claims] 1 Attach an arbitrary number of pieces 8 to the drive chain 6 placed between the two guide rails 1, 1, and use the piece 8a located at the rear of the seedling box 3 stacked on the guide rails 1, 1 from below. After activating the mechanism that lifts the rear end of the second seedling box 3b, the bottom seedling box 3 is opened.
In an automatic sending device for a seedling box in which the rear end of a is pushed and moved by the piece 8a, a horizontal horizontal bar 11 is horizontally supported in front of the triple stacking section of the seedling box, and two An arm piece 1 in which a removable claw piece 12 is attached to the front end of the second seedling raising box 3b, and a coil spring 14 is fixed to the horizontal bar 11 to hold the horizontal bar 11 in a stable state when the claw piece 12 is removed.
3 and the base frame 2, and the outer end 19 of the lever 15, which is rotated against the force of the spring 18 by the piece 8b located in front of the heavily loaded seedling box 3, is attached to a horizontal bar. The lower end 20 of the arm piece 13 fixed to the outer end of 11
An automatic sending device for a seedling box, which is characterized by the fact that