JP2550039Y2 - Transplanter seedling loading device - Google Patents

Description

[Detailed description of the invention]

[0001]

In the present invention, a seedling tray is mounted on a seedling table which can be reciprocated right and left, and a pot seedling, for example, for each plant is taken out from the seedling tray by a seedling picking claw and transplanted sequentially. And a seedling mounting device for a vegetable transplanter.

[0002]

2. Description of the Related Art For example, Japanese Patent Application No. 3-14589 filed earlier.
As shown in the specification, the vertical feeding of the seedling tray is performed by moving a transport pin which is engaged over the entire width of the seedling tray.

[0003]

However, a tray guide rib or the like for restricting the lateral movement of the seedling tray is inserted between the bottoms of the cells of the seedling tray, and the seedling tray is moved downward from the upper end surface of the rib. In the case of the means for guiding and supporting, since a gap corresponding to the movement of the transport pins needs to be formed between the seedling trays, the seedling tray between the transport pins which is not restricted by the transport pins has a gap. There has been a drawback that the seedling removal function is uncertain due to deformation and the like.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a transport pin which is engaged between cell bottoms of a seedling tray mounted on a seedling mounting table and vertically feeds the seedling tray, and is provided between each cell bottom of the seedling tray. In a structure having a tray guide rib for inserting and vertically guiding the seedling tray, the working length of the transfer pin is formed to be short so that the transfer pin is engaged only with the left and right ends of the seedling tray. , The tray guide height of the tray guide ribs disposed between the left and right transport pins is formed to be larger than the tray guide height of the tray guide ribs disposed at the left and right transport pin positions, and the tray disposed between the left and right transport pins. A state in which the seedling tray is always longitudinally guided without shifting the right and left positions by the guide ribs, thereby enabling a reliable seedling removal operation from the seedling tray.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory view of a transport pin portion, and FIG. 2 is an overall side view of the transplanter, wherein (1) is a front frame on which an engine (2) is mounted, and (3) is a rear end of the front frame (1). A transmission case connected continuously, (4) left and right running wheels supported on the transmission case (3) via a transmission case (5) so as to be able to swing up and down, and (6) a transmission case (3)
A seedling supply device installed behind the chassis through a chassis frame (7), (8) is installed between the left and right running wheels (4) in the transmission case (3) via a planting transmission case (9). A seedling planting device, (10) is a crushing roller for crushing the upper surface of the ridge,
(11) is a ridge guide roller disposed on both the left and right sides of the pressure reduction roller (10), (12) is a stock detection roller for adjusting the planting interval, (13) is a cultivation roller, and (14) is a gauge roller. A pot seedling of one strain is taken out from a seedling tray (16) on a seedling table (15) reciprocating right and left in the seedling supply device (6) with a seedling picking nail (17),
The removed pot seedlings are released and supplied to a hopper type planting claw (19) that moves up and down in conjunction with the multi-cutter (18) of the planting device (8), and is operated by a steering handle (20) operation. The plant is configured to plant, ie, transplant, pot seedlings at regular intervals on the ridge surface while the body is running.

As shown in FIGS. 3 and 4, the seedling supply device (6) is configured to feed the driving force from the transmission case (3) to a seedling removal drive shaft (22) via a transmission chain (21). A drive case (23) and a seedling extraction arm (22) that connects and supports a pair of left and right seedling extraction claws (17) to the drive shaft (22) via a rotary case (24), a crank arm (25), and a cam shaft (26). 27) an arm guide plate (28) for guiding the seedling take-out arm (27) during rotation of the crank arm (25) to a seedling take-out position and a seedling discharge position along a guide groove (28a) in a linear and swinging operation. A sprocket (29) (30) is attached to the seedling removal drive shaft (22).
And a vertical feed drive shaft (32) interlockingly connected via a chain (31), and a fixed pushing cam (33) of the vertical feed drive shaft (32) to a pin support (3) via a swing arm (34).
And a seedling push-out pin (36) for connecting the seedling push-out pin (3) immediately before the drive of the drive shaft (22) into the seedling take-out claw (17) into the seedling tray (16) from above.
6) is pushed in from the bottom side of the seedling tray (16) to push out the seedling.

[0007] The seedling supply device (6) includes a seedling mounting table (15).
Left and right side plates (37) and (38) are provided on both lower sides, and the upper guide shaft (39) between the left and right chassis frames (7) and the lower guide shaft (41) between the fixing brackets (40) of the left and right chassis frames (7). A sliding cylinder shaft (42) between the rear portions of the left and right side plates (37) and (38) and the front side plates (37) and (38) is supported, and the upper guide shaft (39) and the lower guide shaft (4) are supported.
With the guidance of 1), the left and right side plates (37) and (38) are moved to reciprocate the seedling mounting table (15) left and right.

As shown in FIGS. 5 to 7, the seedling mounting table (15)
A vertical feed drive mechanism (43) fixedly mounted on the drive shaft (32), a vertical feed operation member (44a) (44b) fixed to the drive shaft (32), and a right side plate (3).
8) The base member is pivotally supported on the same pivot (45) so that the operation member (44) is at the end of the lateral movement of the seedling mounting table (15).
a) A vertical feed cam (47) and a lock arm (48) for bringing the intermediate portion into contact with the operation shaft (46) of (44b), and a follower cam shaft (49) of the right side plate (38).
A follower cam (53) supported through a one-way clutch (50) and a cylindrical shaft (51) to engage an engaging groove (53a) with a rotor (52) of the longitudinal feed cam (47); The lock groove (5) at the outer peripheral portion is integrally fixed to the follower cam shaft (49) and is fixed to the rotor (54) of the lock arm (48).
5a) A gear-shaped lock member (55) for engaging with the tray and a tray transport shaft (58) for interlocking connection with the cam shaft (49) via a pair of gears (56) and (57). A mechanism (43) includes a drive sprocket (59) fixedly mounted on the transport shaft (58), and a free wheel (61) which is elastically supported on the upper end of the seedling mounting table (15) via a pivot plate (60). The vertical feed pin (63) of the vertical feed chain (62) extending between the cells (16a) of the seedling tray (16) is engaged with the depression (16b) between the bottoms of the seedling tray (16) to vertically feed the seedling tray (16). It is configured to perform.

[0009] When the seedling mounting table (15) is moved laterally, the spring (6) biased by the lock arm (48) is used.
4) The locking groove (55) of the locking member (55)
The cam (49) is locked by engaging the rotor (54) in a), and the lock arm (48) and the lock arm (48) are connected to the operation shaft (46) when the seedling mounting (15) reaches the end of the left and right movement. The vertical feed cam (47) comes into contact with the lock groove (55a) and the lock is released by the rotor (54), and at the same time, the return spring (65) biased by the follower cam (53).
The rotation of the cam shaft (49) against the force is performed, and the seedling tray (16) for one pitch is vertically fed. The rotation ratio between the vertical feed drive shaft (32) and the seedling removal drive shaft (22) is 1: 2, and the vertical feed cam (47) and the lock arm (48) by the operation shaft (46) are used.
It is decelerated so as to prevent batting.

Further, the gear (57) is rotatably supported on a tray transport shaft (58), and is slidable in the axial direction on the transport shaft (58) and integrally supported in the rotational direction. Attach the clutch plate (67) to the moving body (66), and
A compression spring (68) is interposed between the slide plate (7) and the sliding body (66), and a pin hole (6) formed in the clutch plate (67).
9) projecting pin (70) on the opposite side of gear (57)
, The automatic vertical feed with the clutch engaged is performed, while the pin (70) is inserted through the pin hole (69).
When the clutch is disengaged by releasing the clutch, manual longitudinal feed is performed.

The seedling table (15) having the lower end fixed to the left and right side plates (37) and (38).
The front part of 1) is integrally connected by a gate-shaped connecting rod (73) via a rod seat (72a), and the traverse of the traverse drive shaft (74) output from the traverse drive case (23). A sliding body (75) to be engaged with the groove (74a) is fixed to the connecting rod (73) via a bolt (76), and the seedling is moved forward by the connecting rod (73) between the upper and lower guide shafts (39) and (41). Smooth lateral feed of the mounting table (15) is performed, and the seedling removal claw (17) is inserted into a space formed between the two guide shafts (39) (41) and the lateral feed drive shaft (74).
And a seedling pushing pin (36), and a lower guide shaft (4
By providing 1) below the trajectory of the seedling removal nail (17), the seedling removal nail (17) and the seedling pushing pin (3) are provided.
6) It is configured to make the operation accurate and to ensure the safety and excel in safety protection.

As shown in FIG. 8, right and left vertical frames (71)
A tray guide plate (77) for guiding the bottom of the seedling tray (16) vertically fed between the left and right pivoting plates (60) and the left and right side plates (37) and (38) integrally connected to the upper and lower portions, and a left and right vertical frame An extended seedling stand (78) is provided between the upper ends of (71), and the upper part of the left and right vertical frames (71) is bent backward, so that the seedling placing stand (15) and the extended seedling stand (78) are omitted from a side view. , And the guide plate (77) and the extension seedling (7)
8) In the meantime, the passage space (79) through which the longitudinal feed chain (62) to be wound around the idler wheel (61) passes is opened, and the space between the extension seedling stand (78) and the guide plate (77) is opened. The vertical feed pin (63) of the chain (62) is gradually engaged with the seedling tray (16) depression (16b) of each cell (16a).
It is configured such that the seedling tray (16) can be smoothly fed vertically without any climbing of the pin (63) to the bottom.

As shown in FIGS. 9 to 11, a plurality of tray guide ribs are provided in the extension of the lower end of the guide plate (77) to restrict the lateral displacement of the seedling tray (16) in the vicinity of the seedling removal claw (17). Cell guide ribs (80) and (81)
A tray guide (83) having (82) is provided, and a left and right end and a center rib (80) are connected to a guide plate (77).
To both the right and left ends and the center rib (8
0), the ribs (81) and (82) are interchangeably fixed to the guide plate (77) through the rib seat (84) and the screw (84a), and the cells ( 16
The ribs (80), (81), and (8) formed on the concave surface (16b) of FIG.
2) Guide surface (80a) (81a) (82)
a) The guide surfaces (80a) and (81a)
(82a) guides the movement of the bottom of the seedling tray (16).

As shown in FIG. 1, the transport pins (63) are connected to the cells (16) at both left and right ends of the seedling tray (16).
The left and right chains (62) are each provided with a small protruding length (L) from the chain (62) so as to separately engage with each other only in (a). And the right and left ends and the center rib (80)
The rib height (H ₁ ), which is the tray guide height from the guide plate (77), is set higher than the rib height (H ₂ ), which is the tray guide height of the other ribs (81), (82). (63) is formed so as to be lower by substantially the diameter of the transport pin (63).
During the transportation of the seedling tray (16), the seedling tray (16) is securely moved without the pins (63) contacting the ribs (80) at the left and right ends, and the seedling tray (16) is moved. Ribs (81) and (82)
The bottom surface of the seedling tray (16) is slidably guided on the guide surfaces (81a) and (82a) of each of the cells (16a) so that the cells (16a) can be accurately moved without displacement.

Further, an upper tray guide (85) is provided at an upper facing portion of the tray guide (83).
The upper tray guide (85) has upper guide plates (86), (87), and (88) opposite to the left and right ends and the center rib (80), and the lower guide shaft in front of the seedling collecting position. (41) Each guide plate (8
6) An attachment piece (86) that connects the parts (87) and (88) together by a horizontal axis (89) and is connected and fixed to the rod seat (72).
a) (87a) is attached to the left and right upper guide plates (86) (87)
And the guide plates (86) (8)
7) An outer bent portion (86) for guiding seedling weeding at the upper end
b) (87b) is formed, and the bent portions (86b) (87b) are formed.
b) The seedlings with fallen foliage are guided by guide plates (86) (8).
7) It is configured to prevent inconveniences such as being trapped underneath.

Further, an auxiliary guide (90) for preventing displacement of the seedling tray (16) from side to side is suitably attached to the center of the upper end, which is an extension of the center rib (80) of the guide plate (77). Mounting part (90c) having two guide bodies (90a) (90b) vertically semicircular in side view
Are detachably fixed to a guide plate (77) via screws (91). In this case, the center rib (8
0) may be extended upward to integrate the auxiliary guide (90). (92) is the upper tray guide (8
5) A lower tray guide continuously provided below.

This embodiment is constructed as described above, and when the seedling tray (16) is vertically fed by the left and right transport pins (63), the pins (63) are moved to the seedling tray (1).
6) The seedling tray (16) is conveyed only by the cells (16a) at the left and right ends, and during this conveyance, the seedling tray (16) has an appropriate rib height between the left and right conveying pins (63). Ribs (81) and (8) which are free from lateral displacement and the like when the bottom is accurately slid and guided on the guide surfaces (81a) and (82a) of the ribs (81) and (82) having the height (H ₂ ).
Longitudinal feed, which is favorably guided to 2), is performed, and the removal of seedlings from the seedling tray (16) can be performed with high accuracy.

[0018]

As is clear from the above embodiment, the present invention is designed to be hooked between the bottoms of the cells (16a) of the seedling tray (16) mounted on the seedling mounting table (15). The seedling tray (16) is inserted between the transport pin (63) for vertical feeding and the bottom of each cell (16a) of the seedling tray (16).
Guide ribs (80) and (81) that guide the vertical feed
(82), the seedling tray (1
The working length (L) of the transport pin (63) is formed to be short so that the transport pin (63) is engaged with only the left and right end sides of 6), and is disposed between the left and right transport pins (63). Tray guide height (H ₂ ) of tray guide ribs (81) and (82)
Is formed to be larger than the tray guide height (H ₁ ) of the tray guide rib (80) disposed at the position of the left and right transport pins (63), so that the seedling tray (16) is moved by the transport pins (63). During transport, the transport pins (63) do not interfere with the guide ribs (80), and the tray guide ribs (81) and (82) transport and transfer the seedling tray (16) in a good posture without interfering with the transport pins (63). Guidance can be provided, and a remarkable effect can be obtained, such as a function of taking out seedlings from the seedling tray (16).

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a transport pin unit.

FIG. 2 is an overall side view of the transplanter.

FIG. 3 is an explanatory side view of a seedling mounting table.

FIG. 4 is an explanatory plan view of a seedling mounting table.

FIG. 5 is an explanatory side view of a seedling vertical feed drive mechanism.

FIG. 6 is an explanatory plan view of a seedling vertical feed drive mechanism.

FIG. 7 is a partial side view illustrating a seedling vertical feed drive mechanism.

FIG. 8 is an explanatory side view of a seedling vertical feeding section.

FIG. 9 is an explanatory perspective view of a tray guide plate portion.

FIG. 10 is an explanatory plan view of a tray guide plate portion.

FIG. 11 is a partial side view of the tray guide plate.

[Explanation of symbols]

(15) Seedling table (16) Seedling tray (16a) Cell (63) Transport pin (80) Tray guide rib (81) Tray guide rib (82) Tray guide rib (H ₁ ) Rib height (tray guide height) (H ₂ ) Rib height (tray guide height)

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hideo Nakajima 1-32 Chayacho, Kita-ku, Osaka City Inside Yanmar Agricultural Machinery Co., Ltd. No. Yanmar Agricultural Machinery Co., Ltd.

Claims (1)

(57) [Scope of request for utility model registration] The present invention relates to a transport pin which is interposed between cell bottoms of a seedling tray mounted on a seedling mounting table to vertically feed the seedling tray, and vertically inserted between the cell bottoms of the seedling tray to vertically feed the seedling tray. In a structure with a tray guide rib for guiding,
In order to engage the transport pins only on both the left and right ends of the seedling tray, the working length of the transport pins is formed to be short, and the tray guide height of the tray guide rib provided between the left and right transport pins is adjusted to the right and left transport directions. A seed placement device for a transplanter, wherein the tray guide rib is disposed at a pin position and is larger than a tray guide height.