Transfer table of dissemination device

Abstract

To solve a problem that a dead space is generated in a part between a rotation center position of a main transfer table and a device closest to the rotation center position in a configuration in which an auxiliary transfer table is inclined to be erected.SOLUTION: A transfer table of a dissemination device is configured such that an auxiliary transfer table 10 is provided in an end portion of a main transfer table 1 that horizontally transfers a seedling container A, in a manner that the auxiliary transfer table 10 can be freely erected or lowered by an attachment rotation shaft 14 of a metal fitting 11. The auxiliary transfer table 10 holds a storage posture of an erected state of being self-supporting without lying on another device provided in the main transfer table 1, due to a lock mechanism 15 provided in the metal fitting 11.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a transfer carriage for a seed sowing device. [Background technology]

[0002] A conventional seed sowing device having a main transfer platform 1 for horizontally transferring seedling trays and an auxiliary transfer platform 10 attached to the end of the main transfer platform 1 in a butt-fit state is known (Patent Document 1). Conventionally, a locking mechanism that holds the main transfer table and the auxiliary frame without an engaging hook has been known (Patent Document 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 7-257112 [Patent Document 2] Japanese Patent Application Laid-Open No. 2002-233249 Summary of the Invention [Problem to be solved by the invention]

[0004] In all of the above-mentioned known examples, the folded auxiliary frame is held in an inclined state toward the center of the transfer table. That is, as shown in FIG. 1(A), the auxiliary transfer platform 10 is stored by leaning against the bed soil supply device 4 or the cover soil supply 8. Therefore, in the conventional example of Figure 1(A), when the auxiliary transfer table 10 is tilted and raised, there is a problem that dead space S occurs between the rotation center position of the main transfer table 1 and the device closest to the rotation center position. In the prior art, the problem of dead space S being created by tilting the auxiliary transfer table 10 was not recognized, and this was left unaddressed, resulting in limited room for arranging each device even with transfer tables of the same length, resulting in low design freedom. In addition, the known example in Patent Document 2 states that the effect of tilting and folding the auxiliary transfer table is to make it more compact, but there is no specific description of the causal relationship between tilting and folding and making it more compact, and the problem of dead space mentioned above is not resolved. The present application provides an improved mounting configuration for the auxiliary transfer table, thereby improving the degree of freedom in designing the seeding device and improving the operability and workability of storing and returning the auxiliary transfer table. [Means for solving the problem]

[0005] The invention of claim 1 is a transfer table for a seed sowing device, in which an auxiliary transfer table 10 is provided at the end of a main transfer table 1 that transports seedling containers A horizontally and laterally, so that it can be freely raised and lowered and rotated by a mounting pivot shaft 14 of a mounting bracket 11, and the auxiliary transfer table 10 is configured to maintain an independent, upright storage position without leaning on other devices provided on the main transfer table 1 by a locking mechanism 15 provided on the mounting bracket 11. In the invention of claim 2, the locking mechanism 15 is a transfer table of the sowing device attached to a mounting bracket 11 that connects at least an auxiliary transfer table 10 provided at the end of the transport direction of the seedling container A to the main transfer table 1. The invention of claim 3 is a transfer table for a sowing device, in which the locking mechanism 15 is composed of an engaging body 16 provided on either the main body side stay 12 or the auxiliary table side stay 13, an engaging hook 17 that engages with the engaging body 16 provided on the other of the main body side stay 12 or the auxiliary table side stay 13, and a locking surface 18 that restricts the rotation of the engaging body 16. The invention of claim 4 is a transfer table for a sowing device in which an engagement surface 19 that engages with the engagement body 16 is formed on the engagement hook 17 of the locking mechanism 15, and the engagement body 16 that abuts against the locking surface 18 is clamped and locked by the engagement surface 19. The invention of claim 5 is a transfer table for a sowing device configured such that the hook portion 25 at the tip of the engagement hook 17 has an engagement surface 19 that engages with the engagement body 16 and a guide surface 26 that guides the engagement hook 17 to automatically move when the engagement body 16 comes into contact with it due to the rotation of the auxiliary transfer table 10. According to the invention of claim 6, the locking mechanism 15 is provided with a spring 30 for biasing the engaging hook 17 in a direction in which the engaging body 16 engages with the engaging member 16, thereby forming a transfer table for the sowing device. The invention of claim 7 is a transfer table for a seeding device, in which the engaging hook 17 of the locking mechanism 15 is provided with a release member 32 for releasing the engagement of the engaging hook 17 with the engaging body 16. In the invention of claim 8, the release member 32 is formed in the shape of a horizontal plate and is arranged between the tip of the engagement hook 17 and the mounting shaft 21, and the release member 32 serves as a transfer table for the sowing device, with one end of a spring 30 engaged thereto to bias the engagement hook 17 in the engagement direction. The invention of claim 9 is a transfer table for a sowing device in which the release member 32 not only releases the engagement hook 17, but also abuts against the standby surface 33 of the mounting bracket 11 after the disengagement, placing the engagement hook 17 in an engagement standby state. The invention of claim 10 is a transfer table for a seeding device in which the main transfer table 1 and the auxiliary transfer table 10 are configured to be maintained in a horizontal state by abutting the end face 35 of the main transfer table 1 with the end face 36 of the auxiliary transfer table 10, and one of the main transfer table 1 and the auxiliary transfer table 10 is provided with an adjustment body 37 that abuts the end face of the other of the main transfer table 1 and the auxiliary transfer table 10 to adjust and maintain the table in a horizontal state. [Effects of the Invention]

[0006] In the invention of claim 1, an auxiliary transfer table 10 is provided at the end of the main transfer table 1, which transports the seedling container A horizontally and laterally, so that it can be freely raised and lowered by means of a mounting pivot shaft 14 of a mounting bracket 11, and the auxiliary transfer table 10 is configured to maintain a free-standing, upright storage position without leaning on other devices mounted on the main transfer table 1 by means of a locking mechanism 15 provided on the mounting bracket 11.Therefore, the auxiliary transfer table 10 can be folded into an approximately vertical upright position, eliminating the dead space between the device on the main transfer table 1 closest to the mounting pivot shaft 14 and the mounting pivot shaft 14, or utilizing the dead space, improving the design freedom of the placement of each device on the main transfer table 1, and in some cases making it possible to shorten the overall length of the main transfer table 1 in design. In the invention of claim 2, the locking mechanism 15 is provided at least on the mounting bracket 11 between the auxiliary transfer table 10 located at the end of the transport direction of the seedling container A and the main transfer table 1, so that the rotating removal brush 9 that removes the covering soil can be made larger in diameter, 120 mm or more, by utilizing the dead space that previously existed in the main transfer table 1, thereby improving the efficiency of covering soil removal. Furthermore, by simply replacing the mounting bracket 11, the existing auxiliary transfer table 10 can also be maintained in a vertically upright position, improving the design freedom for the placement of each device on the main transfer table 1, including the installation of the large-diameter rotating removal brush 9. In the invention of claim 3, the locking mechanism 15 is composed of an engaging body 16 provided on either the main body side stay 12 or the auxiliary table side stay 13, an engaging hook 17 that engages with the engaging body 16 provided on the other of the main body side stay 12 or the auxiliary table side stay 13, and a locking surface 18 that restricts the rotation of the engaging body 16.Therefore, when the auxiliary transfer table 10 is rotated from the working state to the upright state, the locking mechanism 15 stops the storage rotation of the auxiliary transfer table 10, and at the same time the engaging body 16 is clamped and locked by the engaging surface 19 of the engaging hook 17 to hold it in a vertical state.The auxiliary transfer table 10 can be locked in a vertical state simply by being raised, improving operability. In the invention of claim 4, the engaging hook 17 of the locking mechanism 15 is formed with an engaging surface 19 that engages with the engaging body 16, and the engaging body 16 that abuts against the locking surface 18 is clamped and locked between the locking surface 18 and the engaging surface 19, so that the auxiliary transfer table 10 can be held in a vertical position by the locking mechanism 15. In the invention of claim 5, the hook portion 25 at the tip of the engaging hook 17 has an engaging surface 19 that engages with the engaging body 16 and a guide surface 26 that guides the engaging hook 17 to automatically move when the engaging body 16 abuts against it due to the rotation of the auxiliary transfer table 10.Therefore, when the auxiliary transfer table 10 is rotated from the working state to the upright state, the engaging body 16 abuts against the guide surface 26 of the engaging hook 17 of the locking mechanism 15 and automatically pushes up the engaging hook 17, and when the engaging body 16 passes the engaging surface 19 of the engaging hook 17, the engaging body 16 abuts against the locking surface 18 and stops the rotation of the auxiliary transfer table 10, and at the same time the engaging body 16 is clamped and locked by the engaging surface 19 of the engaging hook 17 and held in a vertical position. In the invention of claim 6, the locking mechanism 15 is provided with a spring 30 that biases the engaging hook 17 in the direction of engaging with the engaging body 16. Therefore, when the auxiliary transfer table 10 is rotated from the working state to the upright state, the engaging body 16 abuts against the guide surface 26 of the engaging hook 17 of the locking mechanism 15 and pushes up the engaging hook 17 against the elastic force of the spring 30. When the engaging body 16 passes the engaging surface 19 of the engaging hook 17, the engaging body 16 abuts against the locking surface 18 and stops the rotation of the auxiliary transfer table 10. At the same time, the elastic force of the spring 30 causes the engaging surface 19 of the engaging hook 17 to descend, clamping and locking the engaging body 16 and holding it in a vertical position. In the invention of claim 7, the engaging hook 17 of the locking mechanism 15 is provided with a release member 32 that releases the engagement of the engaging hook 17 with the engaging body 16. Therefore, when the engaging hook 17 is rotated upward by the release member 32 against the elastic force of the spring 30, the engaging hook 17 is unlocked and the auxiliary transfer table 10 can be rotated to the working state. In the invention of claim 8, the release member 32 is formed in the shape of a horizontal plate and is arranged between the tip of the engagement hook 17 and the mounting shaft 21, and one end of the spring 30 that biases the engagement hook 17 in the engagement direction is engaged with the release member 32, so that the release member 32 can be rationally configured to serve as both an operating member for the engagement hook 17 and a mounting member for the spring 30. In the invention of claim 9, the release member 32 is not only used to operate the disengagement of the engagement hook 17, but is also configured to abut against the standby surface 33 of the main body side stay 12 after disengagement to put the engagement hook 17 into an engagement standby state, so the release member 32 can be configured rationally to function not only as an operating member and an attachment member, but also as a stopper for the engagement hook 17. In the invention of claim 10, the main transfer table 1 and the auxiliary transfer table 10 are configured to maintain a horizontal state by abutting the end surface 35 of the main transfer table 1 with the end surface 36 of the auxiliary transfer table 10, and one of the main transfer table 1 and the auxiliary transfer table 10 is provided with an adjustment body 37 that abuts the end surface of the other of the main transfer table 1 and the auxiliary transfer table 10 to adjust and maintain the horizontal state, so that the main transfer table 1 and the auxiliary transfer table 10 can be set in a horizontal state, ensuring smooth and reliable transfer of the seedling container A. [Brief explanation of the drawings]

[0007] [Figure 1] (A) A side view of a conventional sowing device. (B) A side view of the sowing device of the present invention. [Figure 2] FIG. 10 is a perspective view of the connecting portion between the auxiliary transfer table and the transfer table. [Figure 3] FIG. 10 is a side view of the auxiliary transfer table in a raised state. [Figure 4] FIG. 10 is a side view of the auxiliary transfer table in the working state. [Figure 5] 1A and 1B are a plan view, a perspective view, left and right side views, and a front view of the mounting bracket. [Figure 6] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0008] An embodiment of the present invention will be explained with reference to the drawings. Reference numeral 1 denotes a main transport platform of a seed sowing device, which has transport means 2 for transporting seedling containers A and is configured to be placed on the floor by support legs 3. Above the main transport platform 1, from the starting end, there are provided a bed soil supply device 4, a bed soil leveling brush 5, an irrigation device 6, a seed supply device 7, a soil cover supply device 8, a soil cover removal rotating brush 9, etc., and the soil, seeds, water, etc. supplied by these supply devices are supplied from above while the seedling container A is being transported by the transport means 2 (Figure 1). For ease of understanding, the following description will refer to directions such as front / back, left / right, and up / down based on the transport direction of the seedling container A being transported forward by the main transport table 1, but this does not limit the configuration of the present invention.

[0009] Conventionally, a configuration has been disclosed which includes a main transfer table 1 for horizontally transferring seedling containers A, and an auxiliary transfer table 10 with a base attached to the end of the main transfer table 1, with a mounting bracket 11 attached to the attachment point between the main transfer table 1 and the auxiliary transfer table 10, thereby maintaining the auxiliary transfer table 10 in an inclined position (Figure 1(A)). In another conventional example of holding the auxiliary transfer table 10 in an inclined state, the mounting bracket has an axial hole in the main body stay that engages with the engaging body of the auxiliary table stay, and the axial hole holds the extension frame in an inclined state while allowing the engaging body to move up and down within the hole. However, in a configuration in which the auxiliary transfer table 10 is held in an inclined state as shown in FIG. 1(A), a dead space S is created between the rotation center position of the main transfer table 1 and the device closest to the rotation center position. The existence of this dead space S places restrictions on the arrangement of each device placed on the main transfer stage 1.

[0010] Therefore, an auxiliary transfer table 10 is provided at the end of the main transfer table 1, which transports the seedling container A horizontally and laterally, so that it can be freely raised and lowered and rotated using the mounting rotation axis 14 of the mounting bracket 11, and the auxiliary transfer table 10 is configured to maintain an independent, upright storage position without leaning on other devices provided on the main transfer table 1 using a locking mechanism 15 provided on the mounting bracket 11. An auxiliary transfer table 10 is provided at the end of the main transfer table 1, which transports the seedling container A horizontally and laterally, so that it can be freely raised and lowered by means of an attachment pivot shaft 14, and the auxiliary transfer table 10 is configured to maintain a vertical storage position by means of a locking mechanism 15 provided on the attachment bracket 11. This allows the distance between the device on the main transfer table 1 closest to the mounting rotation shaft 14 and the mounting rotation shaft 14 to be narrowed, eliminating the dead space that existed in the past, and improving the design freedom for the placement of each device on the main transfer table 1.

[0011] That is, as shown in Figure 1(B), the auxiliary rail 10 at the starting end is raised vertically to eliminate dead space and narrow the gap between it and the bed soil supply device 4, and the dead space S that previously existed between the auxiliary rail 1010 at the end end and the soil cover supply device 8 can be utilized to install a large diameter rotating removal brush 9 with a diameter of 120 mm or more to remove the soil cover, thereby improving the efficiency of soil removal from the upright walls around the seedling container A. In addition, by simply replacing the mounting bracket 11 with one that has a locking mechanism 15, the auxiliary transfer table 10 of the existing sowing device can also be maintained in a vertically upright position, improving the design freedom for the placement of each device on the main transfer table 1, including the installation of the large-diameter rotating removal brush 9.

[0012] The auxiliary transfer table 10 is attached to the main transfer table 1 by a mounting pivot shaft 14 of a mounting bracket 11 so that it can be raised and folded between a horizontal working state and a vertical storage state. The mounting bracket 11 is configured so that an auxiliary table side stay 13 provided on the auxiliary transfer table 10 side and a main body side stay 12 provided on the main transfer table 1 side are rotatably attached by the mounting pivot shaft 14. Note that the "vertical state" of the auxiliary transfer table 10 in its stored position means that a completely "vertical" state is physically and practically impossible, and a tilt of approximately ±5 degrees in front of or behind the direction of transport of the seedling container A is acceptable, as long as it can prevent the auxiliary transfer table 10 from leaning against equipment at the beginning or end of the main transfer table 1, or it can be freed from constraints on the placement of equipment on the main transfer table 1.

[0013] The locking mechanism 15 is provided at least on the mounting fixture 11 that connects the auxiliary transport platform 10 provided at the end of the transport direction of the seedling-raising container A to the main transport platform 1. Therefore, the rotating removal brush 9 that removes the soil covering accumulated on the front, rear, left and right walls of the seedling container A from the previously existing dead space S is made large, with a diameter of 120 mm or more, and installation space can be secured to accommodate the large-diameter rotating removal brush 9, thereby improving the efficiency of removing the soil covering from the upright walls around the seedling container A. In other words, the auxiliary base side stays 13 and the main body side stays 12 of the left and right mounting brackets 11 are common left and right parts, and it is sufficient to provide the locking mechanism 15 on either the left or right of the auxiliary base side stays 13 or the main body side stays 12; in this embodiment, the locking mechanism 15 is provided on either the left or right of the main body side stay 12 (Figure 2).

[0014] The locking mechanism 15 is composed of an engaging body 16 provided on either the main body side stay 12 or the auxiliary base side stay 13, an engaging hook 17 that engages with the engaging body 16 provided on the other of the main body side stay 12 or the auxiliary base side stay 13, and a locking surface 18 that restricts the rotation of the engaging body 16. In this embodiment, the locking mechanism 15 is composed of an engaging body 16 provided on the auxiliary base side stay 13, an engaging hook 17 that engages with the engaging body 16 provided on the main body side stay 12, and a locking surface 18 provided on the main body side stay 12 side that restricts the rotation of the engaging body 16. In FIG. 2, for ease of understanding, the reference numeral of the locking surface 18 is attached to the main body side stay 12 that does not have the locking mechanism 15 and is shared by both the left and right sides.

[0015] An engagement surface 19 that engages with the engagement body 16 is formed on the engagement hook 17 of the lock mechanism 15, and the engagement body 16 that abuts against the lock surface 18 is clamped between the lock surface 18 and the engagement surface 19 to be locked. Therefore, the auxiliary transfer table 10 can be held in a vertically upright position by the locking mechanism 15. The engaging hook 17 is rotatably attached to the main body side stay 12 by a mounting shaft 21 at the base of the arm portion 22 of the engaging hook 17 . The hook portion 25 at the tip of the engaging hook 17 has an engaging surface 19 that engages with the engaging body 16, and a guide surface 26 that guides the engaging hook 17 to automatically move (rotate upward) when the engaging body 16 comes into contact with it due to the rotation of the auxiliary transfer table 10.

[0016] Therefore, when the auxiliary transfer table 10 is rotated from the working state to the upright state, the engaging body 16 abuts against the guide surface 26 of the engaging hook 17 of the locking mechanism 15, and the rotation of the engaging body 16 and the action of the guide surface 26 push up the engaging hook 17.When the engaging body 16 passes below the lower end of the engaging surface 19 of the engaging hook 17, the engaging body 16 abuts against the locking surface 18, stopping the rotation of the auxiliary transfer table 10.At the same time, the engaging body 16 is clamped and locked by the engaging surface 19 of the engaging hook 17, maintaining it in a vertically upright state. The guide surface 26 of the hook portion 25 of the engaging hook 17 is formed as an inclined surface that guides the engaging hook 17 to rotate upward around the center of the rotation axis 21 when the engaging body 16 rotates and abuts against it, and the mounting positions of the engaging body 16 and the rotation axis 21 and the shape of the guide surface 26 are set and arranged relative to each other.

[0017] In this case, when the engaging body 16 engages with the locking surface 18, the engaging body 16 is positioned beyond the so-called dead point relative to the mounting pivot shaft 14 in a side view, and before the engaging hook 17 locks the engaging body 16, the auxiliary rail 10 does not return to the working state but maintains the vertically upright state. The locking mechanism 15 is provided with a spring 30 that biases the engaging hook 17 in a direction in which the engaging hook 17 engages with the engaging body 16 . Therefore, when the auxiliary transfer table 10 is rotated from the working state to the upright state, the engaging body 16 abuts against the guide surface 26 of the engaging hook 17 of the locking mechanism 15 and pushes up the engaging hook 17 against the elastic force of the spring 30, and when the engaging body 16 passes the lower end of the engaging surface 19 of the engaging hook 17, the engaging body 16 abuts against the locking surface 18 and stops the rotation of the auxiliary transfer table 10, and at the same time, the elastic force of the spring 30 causes the engaging surface 19 of the engaging hook 17 to descend, clamping and locking the engaging body 16 and holding it in a vertical position.

[0018] Furthermore, when the engaging body 16 engages with the locking surface 18, the auxiliary rail 10 does not return to the working state and maintains the vertical standing state before the engaging hook 17 locks the engaging body 16, but the spring 30 urges the engaging hook 17 to rotate in the locking direction, preventing rattle of the auxiliary rail 10 in the standing state. The arm portion 22 of the engagement hook 17 of the lock mechanism 15 is provided with a release member 32 that releases the engagement of the engagement hook 17 with the engagement body 16 . Therefore, when the engaging hook 17 is clamped and locked between the engaging surface 19 of the engaging hook 17 and the locking surface 18 of the main body side stay 12, by rotating the engaging hook 17 upward against the elastic force of the spring 30 using the release member 32, the lock on the engaging hook 17 is released and the auxiliary transfer table 10 can be rotated back to the working state.

[0019] The release member 32 is formed in the shape of a horizontal plate and is provided on the arm portion 22 between the tip of the engagement hook 17 and the mounting shaft 21, and one end of a spring 30 that biases the engagement hook 17 in the engagement direction is engaged with the release member 32. Therefore, the release member 32 can be rationally configured to serve both as an operating member for the engaging hook 17 and as an attachment member for the spring 30. The release member 32, the spring 30, and the rotary mounting shaft 21 are arranged in this order from the tip of the engaging hook 17 toward the rotary mounting shaft 21 (FIG. 3). Therefore, the release operation of the release member 32 can be made lighter, improving operability.

[0020] The release member 32 is not only used to release the engagement of the engagement hook 17, but also abuts against the standby surface 33 of the main body stay 12 after the disengagement, thereby placing the engagement hook 17 in an engagement standby state. Therefore, the release member 32 can be rationally configured to function not only as an operating member and an attachment member, but also as a stopper for the engaging hook 17. The main transport table 1 and the auxiliary transport table 10 are configured to maintain a horizontal state by abutting an end face 35 of the main transport table 1 with an end face 36 of the auxiliary transport table 10, and an adjustment body 37 is provided on either the main transport table 1 or the auxiliary transport table 10 to abut against the end face of the other of the main transport table 1 or the auxiliary transport table 10 and adjust and maintain the horizontal state (Figure 3). Therefore, the main transport platform 1 and the auxiliary transport platform 10 can be set in a horizontal state, making it possible to transport the seedling raising containers A smoothly and reliably.

[0021] (Operation of the embodiment) The configuration of the present invention is as described above. When the front and rear auxiliary transfer tables 10 are rotated to a horizontal position and a seedling box is supplied to the transfer means 20 of the auxiliary transfer table 10 at the starting end (rear side), the transfer means 2 of the main transfer table 1 is driven by a motor (not shown) provided on the main transfer table 1 to transfer the seedling container A toward the end, and bed soil, etc. is supplied from above to the seedling container A during transport. In this case, after the bed soil is supplied, the irrigation device 6 irrigates the bed soil, but it takes a certain time for the irrigated water to penetrate the bed soil, and after the irrigation device 6 irrigates the bed soil, it is transported for a certain time and seeds are supplied by the seed supply device 7. As described above, there are inherent design limitations on the sowing device configured by arranging various supply devices on the main transfer table 1 formed with a limited length. Furthermore, the auxiliary transfer table 10 is attached to the main transfer table 1 by the mounting bracket 11 so that it can be rotated up and down and folded freely, so that when it is rotated to an upright position around the mounting rotation axis 14 of the mounting bracket 11, the main transfer table 1 can be easily stored with its overall length shortened.However, in the main transfer table 1 of conventional sowing devices, the auxiliary transfer table 10 is configured to be kept in an inclined position when stored.

[0022] Therefore, in a configuration in which the auxiliary transfer table 10 is held in an inclined state as shown in Figure 1(A), a dead space S is created between the rotation center position of the main transfer table 1 and the device closest to the rotation center position, and the existence of this dead space further increases the constraints when designing a sowing device. In the present invention, an auxiliary transfer table 10 is provided at the end of the main transfer table 1, which transports the seedling container A horizontally and laterally, so that it can be freely rotated by an attachment rotation shaft 14, and the auxiliary transfer table 10 is configured to maintain an upright (vertical) storage position by a locking mechanism 15 provided on the mounting bracket 11.This makes it possible to narrow the gap between the device on the main transfer table 1 closest to the attachment rotation shaft 14 and the attachment rotation shaft 14, eliminating the conventional dead space and improving the design freedom of the placement of each device on the main transfer table 1, etc.

[0023] The locking mechanism 15 is provided at least on the auxiliary transport table 10 located at the end of the transport direction of the seedling raising container A, so that the rotary removal brush 9 that removes the covering soil accumulated on the top surfaces of the front, rear, and left and right walls of the seedling raising container A can be made large, with a diameter of 120 mm or more, by utilizing the dead space that previously existed at the end of the main transport table 1, and installation space can be secured to install the large-diameter rotary removal brush 9, thereby improving the efficiency of removing the covering soil from the upright walls around the seedling raising container A, or improving the processing capacity per hour of the sowing device. Furthermore, by simply replacing the mounting bracket 11, the existing auxiliary transfer table 10 can also be maintained in a vertically upright position, improving the design freedom for the placement of each device on the main transfer table 1, including the installation of the large-diameter rotating removal brush 9.

[0024] The locking mechanism 15 is composed of an engaging body 16 provided on the auxiliary table side stay 13, an engaging hook 17 that engages with the engaging body 16, and a locking surface 18 provided on the main body side stay 12 that restricts the rotation of the engaging body 16.When the auxiliary transfer table 10 is rotated from the working state to the upright state, the engaging body 16 of the auxiliary table side stay 13 abuts against the guide surface 26 of the engaging hook 17 of the locking mechanism 15 and pushes up the engaging hook 17.When the engaging body 16 passes over the engaging surface 19 of the engaging hook 17, the engaging body 16 abuts against the locking surface 18 of the main body side stay 12 and stops the rotation of the auxiliary transfer table 10.At the same time, the engaging body 16 is clamped and locked by the engaging surface 19 of the engaging hook 17, holding it in a vertical position. Therefore, the auxiliary transfer table 10 is locked in the vertical position simply by standing upright.

[0025] The engaging hook 17 of the locking mechanism 15 is formed with an engaging surface 19 that engages with the engaging body 16, and the engaging body 16 that abuts against the locking surface 18 is clamped and locked between the locking surface 18 and the engaging surface 19, so that the auxiliary transfer table 10 can be held in a vertical position by the locking mechanism 15. The hook portion 25 at the tip of the engaging hook 17 has an engaging surface 19 that engages with the engaging body 16 and a guide surface 26 that guides the engaging hook 17 to move automatically when the engaging body 16 abuts against it as the auxiliary transfer table 10 rotates.Therefore, when the auxiliary transfer table 10 is rotated from the working state to the upright state, the engaging body 16 abuts against the guide surface 26 of the engaging hook 17 of the locking mechanism 15 and pushes up the engaging hook 17, and when the engaging body 16 passes the engaging surface 19 of the engaging hook 17, the engaging body 16 abuts against the locking surface 18 and stops the rotation of the auxiliary transfer table 10. At the same time, the engaging body 16 is clamped and locked by the engaging surface 19 of the engaging hook 17, holding it in a vertical position.

[0026] The locking mechanism 15 is provided with a spring 30 that biases the engaging hook 17 in the direction of engaging with the engaging body 16. Therefore, when the auxiliary transfer table 10 is rotated from the working state to the upright state, the engaging body 16 abuts against the guide surface 26 of the engaging hook 17 of the locking mechanism 15, pushing the engaging hook 17 up against the elastic force of the spring 30. When the engaging body 16 passes the engaging surface 19 of the engaging hook 17, the engaging body 16 abuts against the locking surface 18, stopping the rotation of the auxiliary transfer table 10. At the same time, the elastic force of the spring 30 lowers the engaging surface 19 of the engaging hook 17, clamping and locking the engaging body 16 and holding it in a vertical position.

[0027] The engaging hook 17 of the locking mechanism 15 is provided with a release member 32 that releases the engagement of the engaging hook 17 with the engaging body 16. Therefore, when the engaging hook 17 is locked by being clamped between the engaging surface 19 of the engaging hook 17 and the locking surface 18 of the main body side stay 12, by rotating the engaging hook 17 upward against the elastic force of the spring 30 using the release member 32, the engaging hook 17 is unlocked and the auxiliary transfer table 10 can be rotated to the working state. The release member 32 is formed in the shape of a horizontal plate and is provided between the tip of the engagement hook 17 and the mounting shaft 21. One end of the spring 30 that biases the engagement hook 17 in the engagement direction is engaged with the release member 32, so that the release member 32 can be rationally configured to serve both as an operating member for the engagement hook 17 and as a mounting member for the spring 30.

[0028] The release member 32 is not only used to release the engagement hook 17, but is also configured to abut against the standby surface 33 of the main body side stay 12 after disengagement to place the engagement hook 17 in an engagement standby state.Therefore, the release member 32 can be configured rationally to function not only as an operating member and an attachment member, but also as a stopper for the engagement hook 17. The main and auxiliary carriages 1 and 10 are configured to be held horizontally by abutting an end face 35 of the main carriage 1 with an end face 36 of the auxiliary carriage 10, and an adjuster 37 is provided on either the main carriage 1 or the auxiliary carriage 10 to abut against the end face of the other of the main carriage 1 or the auxiliary carriage 10, thereby adjusting and maintaining the carriage in a horizontal state. The main transport platform 1 and the auxiliary transport platform 10 can be set in a horizontal state, making it possible to transport the seedling containers A smoothly and reliably. The "horizontal state" of the auxiliary transport platform 10 in use does not mean that it is completely horizontal, but rather that it is in a state in which the seedling containers A can be transported and soil and seeds can be supplied. [Explanation of symbols]

[0029] 1...transfer table, 2...transfer means, 3...support leg, 4...bed soil supply device, 5...bed soil leveling brush, 6...irrigation device, 7...seed supply device, 8...soil covering supply device, 9...rotating brush, 10...auxiliary transfer table, 11...mounting bracket, 12...main body side stay, 13...auxiliary table side stay, 14...mounting pivot shaft, 15...locking mechanism, 16...engaging body, 17...engaging hook, 18...locking surface, 19...engaging surface, 25...hook portion, 26...guiding surface, 30...spring, 32...release member, 35...end surface, 36...end surface, 37...adjusting body.

Claims

1. A transfer table for a seed sowing device is provided at the end of a main transfer table 1 that transports seedling containers A horizontally and laterally, and an auxiliary transfer table 10 that can be freely raised and lowered and rotated by a mounting pivot 14 of a mounting bracket 11, and the auxiliary transfer table 10 is configured to maintain an independent, upright storage position without leaning on other devices provided on the main transfer table 1 by a locking mechanism 15 provided on the mounting bracket 11.

2. In claim 1, the locking mechanism 15 is provided on at least the mounting bracket 11 connecting the auxiliary transport table 10 provided at the end of the transport direction of the seedling container A to the main transport table 1 of the seedling sowing device.

3. In claim 1, the locking mechanism 15 of the seeding device transfer table is composed of an engaging body 16 provided on either the main body side stay 12 or the auxiliary table side stay 13, an engaging hook 17 that engages with the engaging body 16 provided on the other of the main body side stay 12 or the auxiliary table side stay 13, and a locking surface 18 that restricts the rotation of the engaging body 16.

4. In claim 3, the transfer table of the sowing device is configured so that the engaging hook 17 of the locking mechanism 15 has an engaging surface 19 that engages with the engaging body 16, and the engaging body 16 abutting against the locking surface 18 is clamped and locked by the engaging surface 19.

5. In claim 4, the hook portion 25 at the tip of the engaging hook 17 has an engaging surface 19 that engages with the engaging body 16, and a guide surface 26 that guides the engaging hook 17 to automatically move when the engaging body 16 abuts it due to the rotation of the auxiliary transfer table 10.

6. 4. The transfer table for a seed sowing device according to claim 3, wherein the locking mechanism is provided with a spring for biasing the engaging hook in a direction in which the engaging hook engages with the engaging body.

7. 4. The transfer table for a seed sowing device according to claim 3, wherein the engaging hook of the locking mechanism is provided with a release member for releasing the engagement of the engaging hook with the engaging body.

8. In claim 7, the release member 32 is formed in the shape of a horizontal plate and is provided between the tip of the engagement hook 17 and the mounting shaft 21, and one end of a spring 30 that urges the engagement hook 17 in the engagement direction is engaged with the release member 32.

9. In claim 8, the transfer table of the seeding device is configured so that the release member 32 not only releases the engagement of the engagement hook 17, but also abuts against the standby surface 33 of the mounting bracket 11 after the disengagement, thereby placing the engagement hook 17 in an engagement standby state.

10. In any one of claims 1 to 9, the main transfer table 1 and the auxiliary transfer table 10 are configured to maintain a horizontal state by abutting the end face 35 of the main transfer table 1 with the end face 36 of the auxiliary transfer table 10, and one of the main transfer table 1 and the auxiliary transfer table 10 is provided with an adjustment body 37 that abuts the end face of the other of the main transfer table 1 and the auxiliary transfer table 10 to adjust and maintain the horizontal state.

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