JPH0453217Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention has an action that prevents the pine-like seedlings from moving downward by receiving the lower edge of the pine-like seedlings placed on the seedling stand by the receiving part. The present invention relates to a seedling stopper that can be switched between a posture and a non-working posture in which the pine-like seedlings are separated.

[Prior Art] Conventionally, as a seedling stopper constructed as described above, there is a structure shown in, for example, Japanese Utility Model Publication No. 57-21542.
The seedling stopper is comprised of a member that receives the lower edge of the pine-shaped seedling, and is configured to move the pine-shaped seedling upward along the seedling stand when the seedling is set in the working position.

[Problem that the invention attempts to solve]

However, the bed soil of pine-shaped seedlings often contains moisture and is soft, so even when moving the pine-shaped seedlings upward along the seedling stand as described above, the bed soil must be broken. In addition, if the seedling stand is equipped with a ring or the like for sending the pine-like seedlings upward, the bed soil is more likely to be broken, and there is room for improvement.

The purpose of this invention is to provide, through rational improvements, a seedling stopper that hardly disturbs the bed soil of pine-shaped seedlings, and that stably maintains the posture when set in a non-working posture. At the point.

[Means for solving problems]

A feature of the present invention is that the seedling stopper having the above structure is supported so as to be swingable around a fulcrum P located on the upper side of the receiving portion in the vertical direction of seedling feeding in the operating position, and the lower end of the pine-shaped seedling It is composed of a plate-like member that receives the entire width of the edge and is wide in the vertical direction. In the active position, the plate-like member is set near the sliding rail that supports the seedling stand, and in the non-active position, it supports the pine-shaped seedlings. The plate-shaped member is set at a position away from the pine-shaped seedlings by the engagement between the swinging shaft of the seedling holding device provided to prevent the seedlings from floating up and the engagement portion provided on the plate-shaped member. Its functions and effects are as follows.

[Effect]

Since the plate-like member is located close to the sliding plate in the working position, when switching from the planting state in which the pine-like seedlings are in contact with the sliding rail to the stopper action state, the lower end of the seedling is moved in the feeding movement direction. It is only necessary to move the seedlings by a small amount to the opposite side, and the collapse of the seedlings can be reduced, and in the working position, the seedlings can be reliably received and supported by the plate-like member. In addition, when the plate-like member is set in the non-working position, the swing shaft of the seedling holder installed near the upper side of the seedling stand and the plate-like member itself to prevent the pine-like seedlings from floating up. The posture is maintained by engagement with the provided engagement portion. Moreover, since the fulcrum position of the plate-like member is located on the upper side in the vertical direction of seedling feeding than the receiving part, the amount of vertical swing for changing the posture is suppressed to a small amount, making the operation easier.

[Effect of idea]

Therefore, even if the bed soil for the pine-shaped seedlings is soft, the collapse of the bed soil caused by the shifting of the pine-shaped seedlings when the seedling stopper is switched to the operating position is reduced, and the lifting of the seedlings is prevented. By effectively utilizing the swinging shaft of the seedling holder, which is provided to prevent this, the posture in the inactive state can be stably maintained without the use of special parts, and the operability of changing postures is improved. It became a thing. Moreover,
Since the plate-like member is formed wide in the vertical direction, it can effectively prevent muddy soil from scattering against the placed seedlings due to the planting operation using the planting claws, and prevent planting caused by muddy soil adhesion. It also has the effect of preventing harmful effects such as lodging of planted seedlings under such conditions.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on the drawings.

As shown in FIG. 5, a rice transplanter is constructed by connecting a six-row seedling planting device A to the rear end of the traveling machine body 1 via a link mechanism 3 that is raised and lowered by the operation of a hydraulic cylinder 2.

As shown in the same figure and Fig. 3, seedling planting device A
A transmission case 4 to which the power from the traveling body 1 is transmitted, three planting cases 5, 5, 5 to which the power from the transmission case 4 is branched and transmitted, and each of these planting cases 5, 5, 5. It consists of two planting arms 6 provided at the rear end, a seedling stand 7 on which the pine seedlings W are placed, and three soil leveling floats 8 arranged laterally in parallel. By circulating the planting claw 6a attached to the attachment arm 6 along the oval loop-shaped trajectory S, from the lower end of the pine-shaped seedling W,
The seedlings are cut out one by one by the planting claws 6a and are planted in the field.

Further, the seedling stand 7 is mounted so as to be movable laterally on a sliding rail 9 provided on the top surface of the three planting cases 5 . It is connected via a penetrating transverse feed shaft 10 and a bracket 11.

Further, a large number of wheels 12 for feeding the pine-shaped W are provided on the back side of the seedling stand 7, and these wheels 12 are installed on the sides of the transmission case 4 each time the seedling stand 7 reaches both left and right ends. The crank arm 13 is interlocked with a link mechanism 14 that comes into contact with the crank arm 13.

As shown in FIGS. 3 and 4, a seedling holding device 15 for preventing the pine-shaped seedlings W from floating and a lower edge Wa of the pine-shaped seedlings W are received on the seedling placement surface side of the seedling platform 7. A seedling stopper is attached to each row, which can be switched between an active position in which the pine-like seedlings W are stopped by the stop portion 18d and prevented from moving downward, and a non-active position in which they are separated from the pine-like seedlings W. .

In other words, the seedling holding tool 15 consists of two long rods 15.
a, 15a and four rods 15b..., the base end of which is attached to a swinging support shaft 16, and by swinging around the axis of the swinging support shaft 16, the pine-shaped seedling W. It is configured so that it can be switched between a position in which it approaches and lightly presses the pine-shaped seedling W, and a position in which it is separated from the pine-shaped seedling W.

Further, the seedling stopper is constituted by a plate-like member 18 that is swingably supported around a fulcrum P formed on a bracket 17 for attaching the swinging shaft 16 to the seedling stand 7.

That is, as shown in FIG. 2, the fulcrum P is located on the upper side in the vertical direction of seedling feeding than the receiving part 18d for the pine-shaped seedling W in the plate member 18 set in the working position, and The plate-like member 18 is made of a plate material having an arc shape centered on the fulcrum P in a side view and having a wide width in the vertical direction. Reference numeral 18 indicates arm portions 18 formed on both left and right sides of the upper part.
It is supported by the fulcrum P via a and 18a.

Further, the plate member 18 has an engaging portion 1 formed of a protrusion for engaging with the swinging shaft 16 of the seedling holding tool 15.
8b is formed, and as shown in FIG. maintained.

Further, a rod 19 is provided on each of the left and right brackets 17, 17, and when the plate-like member 18 is set in the non-operating position, the rod 19 comes into contact with a bent portion 18c formed at the lower end of the plate-like member 18. In addition to preventing upward movement, the rod 19 restricts the displacement of the plate-like member 18, thereby preventing the engagement portion 18b from separating from the swing support shaft 16.

Note that when the plate-like member 18 is set in the working position, the plate-like member 18 is located near the upper side of the slide rail 9. The plate member 18 is set in this position for two rows at the same time, and a clutch (not shown) installed in the planting case 5 is cut and operated.

Incidentally, when the plate-shaped member 18 is set to the non-active position, the leaf portion of the pine-shaped seedling W is received by the upper front surface of the plate-shaped member 18.

[Another example]

In addition to the above-mentioned embodiment, the present invention has a plurality of engaging portions 18b formed in the plate-like member 18 along the swinging direction of the plate-like member 18, as shown in FIG. When set to the non-working position, the position of the lower end level of the plate member 18 is adjusted to change the level of the plate member 18 that acts on the leaves of the pine-shaped seedling W. by moving the seedling holding tool 15 in a direction perpendicular to the placement surface of the seedling mounting table 7.
When adjusting the pressing force on the pine-shaped seedlings W, the plate-like member 18 and the seedling stand 7, or the plate-like member 18
It may be configured such that even if the relative positional relationship between the pivot shaft 16 and the pivot shaft 16 changes, the posture can be switched to an appropriate posture.

[Brief explanation of the drawing]

The drawings show an embodiment of the seedling stopper according to the present invention, and FIG. 1 is a longitudinal cross-sectional side view of the seedling stopper in the non-working position, and FIG. 2 is a side view of the seedling stopper in the working position. 3 is a side view showing the seedling stand, transmission case, etc., FIG. 4 is a schematic rear view showing the placement position of the seedling stopper, and FIG. 5 is an overall side view of the rice transplanter. FIG. 6 is a longitudinal side view showing another embodiment of the seedling stopper. 7... Seedling stand, 9... Sliding rail, 15...
Seedling holding tool, 16... Swinging shaft, 18... Plate member, 18b... Engaging portion, 18d... Receiving portion, P
...Fully point, W...pine-shaped seedling, Wa...lower edge of pine-shaped seedling.

Claims (1)

[Scope of utility model registration request] The lower edge of the pine-shaped seedling W placed on the seedling stand 7
The pine-shaped seedling W is received by the receiving part 18d.
The seedling stopper is capable of switching between an active position for preventing downward movement of the seedlings and a non-active position for separating from the lower edge Wa of the pine-shaped seedlings W, and in the active position, the seedlings are vertically fed from the receiving part 18d. It is supported in a swingable manner around a fulcrum P located on the upper side in the direction, receives the entire width of the lower edge Wa of the pine-shaped seedling W, and is made up of a plate-like member 18 that is wide in the vertical direction,
In the active position, the plate-shaped member 18 is set near the sliding rail 9 that supports the seedling stand 7, and in the non-active position, the plate-like member 18 is set on the pivot shaft of the seedling presser 15 provided to prevent the pine-shaped seedlings W from floating up. 16 and the engagement portion 18b provided on the plate-shaped member 18, the plate-shaped member 1 is moved to a position away from the lower edge Wa of the pine-shaped seedling W.
Seedling stopper where 8 is set.