JPH0236332Y2 - - Google Patents

Description

[Detailed description of the invention] The applicant has already published Japanese Patent Publications No. 56-34247, No. 57-18763,
Alternatively, in 57-22286, etc., pot seedlings grown individually for each plant are set in a transplanter in a seedling grower, the potted seedlings are mechanically extracted from the seedling grower, and then transplanted using a seedling conveyor belt. We proposed a transplanter that transports the plants to the base and plants them.

The seedling conveying belt in this transplanter has the fourth,
As shown in Figures 5 and 6, rows of protrusions 3 for fixing seedlings are arranged at appropriate intervals on the surface.
The potted seedlings 8 are prevented from moving or rolling on the belt by the rows of projections 3, and are conveyed while being accommodated between the rows of projections 3 as shown in FIG. On the other hand, at the end of the seedling conveying belt 1, there is a 2
Seedling guide tubs 10 with plates facing each other are arranged in parallel, and the potted seedlings 8 that have reached the end fall from the belt 1 into the seedling guide tubs 10 and temporarily stay in the soiled part. It is twisted and pinched. Subsequently, at the same timing as this, the planting claw 9 enters the seedling guide tub 10 from above and attempts to pass through this gap, but when the potted seedling 8 is in the passage, the planting claw 9
While pushing the soiled part of the potted seedling 8, the seedling is guided inside the seedling guide tub 10 to the field and planted.

Therefore, in this transplanter, the operation of the seedling conveying belt 1 and the planting claws 9 must be performed at precisely the same timing, so that The positional relationship of the planted nails must always be maintained correctly. For this reason, conventionally, a conveyor belt as shown in Fig. 3 has been used.
Protrusions were arranged on the front and back of the belt, and the protrusions on the back were engaged with grooves bored around the pulley shaft. However, since the transplanter is used in rice fields and fields, mud and other impurities often get in between the seedling conveying belt 1 and the pulley shafts 2 and 2' that support and drive it. The positional relationship between the pulley shaft 2 and the seedling conveying belt 1 was out of order, and therefore the timing with the planting claws sometimes did not match. For example, in the seedling conveying belt shown in FIG. 3, the concave groove 5 of the pulley shaft 2 and the protrusion 4 on the back of the belt become disengaged for some reason, and the protrusion 4 on the back of the belt
If it were to engage with the concave groove 5 next to it, the timing would be off and this would cause problems in planting, so the transplanting work was stopped and corrections were made.

The present invention solves these inconveniences by providing protrusions on the back side at the same intervals in correspondence with the protrusions on the surface of the seedling conveying belt, and creating recesses drilled in the circumferential surface of the pulley shaft. The gist of this invention is the structure of a seedling conveying belt in a pot seedling transplanter, which is characterized by being engaged with a groove.

FIG. 1 is a perspective view of the seedling conveying belt of the present invention.
FIG. 2 is a side view thereof. Reference numeral 1 designates a seedling conveying belt of the present invention, which is made of a flexible material such as rubber, and is stretched and supported by two pulley shafts 2, 2. On the surface, rows of protrusions 3, 3... are arranged at appropriate intervals, and
Protrusions 4, 4, . . . are provided on the back surface of the pulley shafts 4, 4, . Three grooves are bored on the circumferential surface of the pulley shaft 2 at positions that equally divide it, and one end of the groove is a square shaft part 6 with a triangular cross section, which is fitted into the drive shaft 7 on the machine side. When pressed, power is transmitted.

If the number of grooves on the circumferential surface of the pulley shaft 2 and the number of sides of the square shaft 6 are matched in this way, the square shaft 6
When it is removed from the body and reattached, the relative positional relationship is maintained no matter which fitting position it is attached to, which has the advantage of making the attachment work easier.

Since the present invention is constructed as described above, when the transplanter is operated and the potted seedlings are being transported by the belt,
The meshing between the belt and pulley shaft may become misaligned due to objects temporarily entering the space between the belt and the pulley shaft.
Even if there is a change in the positional relationship between the belt and the pulley shaft, the front surface protrusion row and the back surface protrusion row are arranged at the same pitch, so the timing with the planting claws will not match as in the past. There is no such thing. For example, if the mesh is misaligned by one pitch, the planting claw will fail once, but it will be possible to continue normal planting from the next time onwards.

As described above, the present invention has the practical benefit of eliminating the need to synchronize the timing of the seedling conveying belt and the planting claw, which conventionally required time and effort.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the seedling conveying belt of the present invention.
FIG. 2 is a side view thereof. FIG. 3 is a side view of the conventional example. Figures 4, 5, and 6 show the planting section of the transplanter, which is composed of a seedling conveying belt and a planting claw. Figure 4 is a front view, Figure 5 is a plan view, and Figure 6 is a right side view. It is a diagram. The explanation of the symbols in the figure is as follows. 1 is a seedling conveying belt, 2 is a pulley shaft, 3 is a protrusion, 4 is a back protrusion, 5 is a groove, 6 is a square shaft, 7 is a drive shaft, 8 is a potted seedling, 9 is a planting claw, 10 is a seedling Guide bucket.

Claims (1)

[Scope of utility model registration request] In a transplanter that transports and plants pot seedlings using a belt, protrusions are arranged at regular intervals on the front surface of the belt, and protrusions are arranged on the back side at the same intervals as the front surface, and the back protrusions are A seedling conveying belt for a transplanter, characterized in that it engages with a groove formed on the peripheral surface of a pulley shaft.