JP2002137669A - Operation seat of riding agricultural machinery - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the rigidity with a simple structure by eliminating such problems wherein the synthetic resin sheet can be reduced in weight but a sufficient strength is hard to be provided, while the production cost is also increased when the sheet is formed in combination with a metal member. SOLUTION: In this operation seat of riding agricultural machinery, a seat groove 3 recessed in annular shape is formed in the periphery of the seating face 2 of the synthetic resin sheet 1. Water drain holes 4 opening to the rear face of the sheet are disposed in the seat groove 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation seat for a riding agricultural machine, and can be used as a riding operation seat for a seedling plant, a tractor, a combine, or the like.

[0002]

2. Description of the Related Art The technique of a blow molding operation sheet made of synthetic resin is already known (JP-A-2000-94997).
issue).

[0003]

SUMMARY OF THE INVENTION Synthetic resin sheets are:
Although it is possible to reduce the weight, it is difficult to obtain sufficient strength, and when this is combined with a metal member, the production cost tends to increase.

[0004]

According to the first aspect of the present invention, an annular seat groove 3 is formed around a seating surface 2 of a synthetic resin seat 1, and the seat groove 3 has a back surface. The driving seat of the riding agricultural machine is characterized by arranging a drain hole 4 that is opened toward the vehicle.

The invention according to claim 2 is characterized in that the inner middle seating surface 5 surrounded by the annular seat groove 3 is formed at a lower position A than the outer peripheral seating surface 6. It is. According to a third aspect of the present invention, there is provided a driving seat for a riding agricultural machine, wherein a mounting bracket 7 for mounting a seat and a supporting projection 8 for supporting a seat are integrally formed on the back surface of the synthetic resin seat 1. Configuration.

[0006]

According to the first aspect of the present invention, the seat groove 3 is formed annularly around the seating surface 2 of the seat 1,
The rigidity of the seating surface 2 can be increased, and the annular arrangement of the seat grooves 3 enables the non-removal of rainwater or the like from the drain holes 4 to be quickly performed. Even when the driver remains in the seating surface 2, even if the driver sits on the seating surface 2, the driver can quickly perform the seating operation without leakage. In addition, such a strength structure can be produced lightly, simply and inexpensively by molding with synthetic resin.

According to a second aspect of the present invention, the middle seat surface 5 inside the annular seat groove 3 formed on the seating surface 2 is positioned lower than the outer circumferential seat surface 6 below the boundary. Since the step is formed to form the step portion, the seating posture or position of the driver can be stabilized, and the seating movement to the outside can be prevented. When a cushion mat is laid on the seating surface 2, it can be stabilized by fitting it to the middle seating surface 5.

According to the third aspect of the present invention, since the mounting bracket 7 and the supporting projection 8 are integrally formed on the back surface of the seat 1, the rigidity of the seating surface 2 of the seat 1 can be increased. And the molding and construction are simple. In addition, due to the integral molding of the mounting bracket 7 and the like, the seating surface 2 as a whole can maintain good impact force absorption.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The operation sheet of a riding agricultural machine according to the present invention can be used as an operation sheet for a seedling plant, a tractor, a combine, or the like. Hereinafter, a case where the present invention is applied to a seedling plant as shown in the drawings will be described as an example.

[0010] Since the seedling transplanter is often operated during the rainy season, the seedling planter performs the seedling operation while traveling in the paddy field.
When supplying seedlings, the driver sometimes works while the leaks are left. Even during operation in such a state, the drainage from the seating surface 2 of the seat 1 is quickly performed. The schematic configuration of the seedling planter has a front wheel 10 and a rear wheel 11 before and after the vehicle body 9,
The vehicle can be driven and driven by driving of an engine 15 disposed below a seat support frame 14 that supports the driving seat 1, and can be steered by a handle 13 on a steering post 12. Reference numeral 16 denotes a fuel tank.

On the rear side of the vehicle body 9, a seedling tank 17, a seedling claw 18, a center float 19, and a side float 20
The seedling plant 21 having the same is connected via a lift link 22, and the lift link 22 can be moved up and down by a lift cylinder 23 which expands and contracts by hydraulic pressure. The mat-shaped seedlings to be supplied to the seedling tank 17 can be planted on the soil surface leveled by the floats 19 and 20 while being separated by the seedling claws 18. The seedling operation can be continued while replenishing the seedling tank 17 with the mat-shaped seedlings mounted on the auxiliary seedling mounts 24 arranged on the left and right sides of the front part of the vehicle body 9. At this time, the driver can perform the seedling replenishment operation while sitting on the seat 1 or standing on the floor 25 on both left and right sides of the seat 1.

Therefore, as shown mainly in FIGS. 1 to 3, an annularly recessed seat groove 3 is formed around a seating surface 2 of a synthetic resin seat 1, and the seat groove 3 is formed on the back surface. The operation seat of the riding agricultural machine is characterized by arranging a drain hole 4 which is opened toward the operator. This sheet 1
Since the seat groove 3 is formed in an annular shape around the seating surface 2, the rigidity of the seating surface 2 can be enhanced, and the annular arrangement of the seat groove 3 allows rainwater or the like from the drain hole 4. Drainage can be performed quickly, and even if water remains in the seat groove 3, even if a driver sits on the seating surface 2, the seat can be quickly seated without leakage. .
In addition, such a strength configuration can be produced lightly, simply, and inexpensively by molding with synthetic resin.

Here, the sheet 1 made of hard rigid resin is
The seating surface 2 is formed by blow molding into a hollow shape B, and the seat groove 3 is formed in the peripheral portion in a concave shape in cross section, and is arranged and formed in an annular shape. The inner middle seating surface 5 surrounded by the annular seat groove 3 and the outer peripheral seating surface 6 are formed at the same height.
The back side surface 26 below the seating surface 2 is formed with an annular back groove 27 which is opposed to the seat groove 3 and is recessed upward and back to back, and these two grooves 3 and 27 are integrally formed. To be joined. The drain holes 4 are formed at appropriate intervals over the joint between the grooves 3 and 27.

At the front of the back side surface 26, a mounting bracket 7 is provided.
Is integrally formed with the support projection 8 at the rear portion, and is mounted and supported on the seat support frame 14. A pin hole 28 is arranged and formed in the mounting bracket 7, and the seat support frame 1 is formed.
A pin 30 is inserted between the support bracket 29 and the support bracket 29 on the upper side 4, and the seat 1 is mounted around the pin 30 so as to be able to pivot up and down and back and forth. The support projection 8 is made of cushion rubber or the like, and is attached to the back side surface 26 of the seat 1. Alternatively, the support projection 8 may be attached to the seat support frame 14 side.

The backrest 31 of the seat 1 is
Part is blow-molded integrally with the hollow part C
Can also be formed. On the seating surface 2 of such a seat 1, even if it gets wet, it easily flows into the peripheral seat groove 3, and the water flowing along the seat groove 3 leaks downward from the drain hole 4. For this reason, even if the driver sits on the seating surface 2, the water in the seat groove 3 is hard to be adsorbed, and the seating wetness of the driver can be reduced. In addition, the seat groove 3 makes it easy to obtain a sense of the seating position with respect to the seating surface 2 and easily maintains a stable driving posture.

Moreover, the seat surface 2 has an annular seat groove 3.
The rigidity can be increased. By bonding the bottom of the sheet groove 3 to the back groove 27 of the back side surface 26 as shown in the figure, the rigidity can be further increased. Next, as shown mainly in FIG. 4, in the sheet 1, the inner middle seating surface 5 surrounded by the annular seat groove 3 is formed at a lower position A than the outer peripheral seating surface 6. It is characterized by: With the annular seat groove 3 formed on the seating surface 2 as a boundary, the inner middle seating surface 5 is formed at a lower position A than the outer peripheral seating surface 6 to form a step portion. Therefore, the seating posture or position of the driver can be stabilized, and the seating movement to the outside can be prevented. When a cushion mat is laid on the seating surface 2, it can be stabilized by fitting it to the middle seating surface 5.

Here, the cushion mat 32 is provided on the seating surface 2.
When laying, the cushion mat 32 can be stabilized because the middle seating surface 5 is low and the outer peripheral seating surface 6 is high, and the posture of the seating operation can be easily maintained. Further, even when wet with rainwater or the like, it is possible to guide the drainage to the seat groove 3.

Further, as mainly shown in FIGS. 5 to 8, the sheet 1 is provided with a mounting bracket 7 for mounting the sheet and a support projection 8 for supporting the sheet on the back surface of the sheet 1 made of synthetic resin. Are formed integrally with each other to form a driving seat for a riding agricultural machine. Since the mounting bracket 7 is integrally formed on the back surface of the seat 1 and the support projection 8 is also formed, the rigidity of the seating surface 2 of the seat 1 can be increased, and the molding and the configuration are simple. is there. In addition, due to the integral molding of the mounting bracket 7 and the like, the seating surface 2 as a whole can maintain good impact force absorption.

Here, in FIGS. 5 and 6, the supporting projection 8 is formed integrally with the back side surface 26 of the sheet 1. The supporting projection 8 also has a hollow section D communicating with the hollow section B of the sheet 1. Can be formed so that the support impact can be easily absorbed.
The mounting bracket 7 and the support projection 8 may be configured independently as shown in the drawing, or may be formed as a continuous and integrated structure.

On the other hand, in FIGS. 7 and 8, the support projection 8 is provided on the seat support frame 14 side, and
In this embodiment, only the mounting bracket 7 is integrally formed. In addition, the seat groove 3 is not formed, but the middle seat surface 5 is simply formed at a lower position A than the peripheral seat surface 6 and blow molded into a hollow shape B.

Referring mainly to FIGS. 9 and 10, in each of the shelves 33 of the auxiliary seedling mounting table 24, a positioning frame 35 for positioning the seedling box 34 can be moved back and forth.
The mounting position of the seedling box 34 can be changed back and forth.
4 At the time of loading, move back and forth E to make the loading work easier,
When the mat seedlings in the seedling box 34 are supplied to the seedling tank 17, the mats are moved backward F to facilitate the supply of the seedlings.

The positioning frame 35 is formed of a loop-shaped wire rod, and is formed by bending the front and rear locking portions 36 upward, and engages the front and rear ends of a seedling box 34 containing mat-shaped seedlings. Stop,
You can stop moving back and forth. The positioning frame 35 is configured to be able to be manually and easily moved in the front-rear direction with respect to the shelf 33. Also, a positioning frame 37 is formed at a fixed position on the lateral side,
The lateral movement of the seedling box 34 can be locked. A support frame 3 integrated with the frame portion of the auxiliary seedling mounting table 24 is provided inside the shelf 33.
8, the support frame 38 can stop the movement to the side of the seedling box 34.

Referring mainly to FIG. 11, differences from the above example will be described. The stepping pressure G of the front wheel 10 is configured to be narrow G1 when the load is small and wide G2 when the load is large. 38 is a spoke, 39 is a boss mounted on the axle 40, 41 is an iron core ring, and a tire 42 made of a rubber material is integrally provided on the outer periphery of the ring 41. The tire 42 is formed so that a side wheel 44 that can be opened to the left and right from a groove 43 at the center of the outer periphery has a hollow portion 45. The hollow portion 45 is configured so that an appropriate air pressure can be injected.

When the applied load is large, for example, when the vehicle is moving backward, the space between the side wheels 44 of the tire 42 is wide and G is wide.
2 makes it difficult to settle even on soft soil. In addition, when the vehicle is normally moved forward, the load is reduced and the space between the side wheels 44 is closed toward the center, and the width of the tire 42 is narrower to G1. Suppress adverse effects and make traveling smooth.

In FIG. 12, the main difference from the above example is that, of a part of the floor 25, the seat floor 46 having the seat supporting frame 14 for supporting the driver's seat 1 and the side steps 51 is a pair of front and rear parallel The link is configured to be openable and closable up and down by links 47 and 48 in the shape of a circle. Each of the links 47 and 48 is rotatably supported on a frame 50 of the vehicle body 9 around a support shaft 49. Since the seat floor 46 can be opened upward and parallel, maintenance of the engine 15 in the seat support frame 14 can be easily performed.

13 and 14, the difference from the above example is that the front and rear portions of the seat floor 46 are rotatably supported by lateral support shafts 52 and 53 of the body frame 50, Can be fixed and released with a lock 54,
By releasing one of the front and rear locks 54, the seat floor 46 is pivoted upward around the support shaft 52 or 53 on the locking side to release the engine room and the like below the seat floor 46, Maintenance can be facilitated.

On the left and right sides below the seat floor 46,
An inverted U-shaped seat 55 fitted and supported on the support shafts 52 and 53.
Is attached via a receiving frame 61, and a shaft 52,
A sleeve 56 rotatably fitted to 53 is interposed.
A hook 57 for contacting the lower side of the sleeve 56 is rotatably supported on a shaft 58 at the front and rear of the receiving seat 55, and an engagement ring 59 of the patch lock 54 and a lever 6 are provided on the opposite side.
0 is provided. By tensioning the engagement ring 59 that engages with the hook 57 by the vertical rotation of the lever 60, the receiving seat 55 can be attached and fixed to the support shaft 52 or 53, and the hook can be loosened by loosening the engagement ring 59. L is opened by opening 57 downward to remove the receiving seat 55 from the support shaft 52 or 53.
be able to. At this time, the seat 55 on the locked side can also rotate with respect to the support shaft 52 or 53 via the sleeve 56. Therefore, the seat floor 46 is rotated around these support shafts 52 or 53, and the front side is rotated. The door can be opened upward or the rear side can be opened upward, and an opening that facilitates maintenance can be selected.

[Brief description of the drawings]

FIG. 1 is a perspective view of a seat portion and a cross-sectional view of a part thereof.

FIG. 2 is a side view of the seedling transplanter.

FIG. 3 is a plan view thereof.

FIG. 4 is a perspective view of a seat part showing another embodiment, and a cross-sectional view of a part thereof.

FIG. 5 is a side view of a seat portion showing another embodiment.

FIG. 6 is a front perspective view of the seat part and a rear perspective view of the seat part.

FIG. 7 is a side view of a seat portion showing another embodiment.

FIG. 8 is a sectional view thereof.

FIG. 9 is a perspective view of a body part of a seedling transplanter showing another embodiment.

FIG. 10 is a side view of the floor portion showing a part of its operation.

FIG. 11 is a side view of a floor portion showing another embodiment.

FIG. 12 is a side view of a floor portion showing another embodiment.

FIG. 13 is a side view of a floor portion showing another embodiment.

FIG. 14 is an enlarged side view showing a part of the operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Seat 2 Seating surface 3 Seat groove 4 Drain hole 5 Middle seating surface 6 Peripheral seating surface 7 Mounting bracket 8 Support projection A low

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroyuki Niiyama 1-Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Within the department (72) Inventor Takashi Fukui 1st Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Masafumi Saeki 1 Hachikura, Tobe-cho, Iyo-gun, Ehime Pref. Iseki Agricultural Machinery Co., Ltd. (72) Inventor Hideyuki Kusamoto 1-Hachikura, Tobe-cho, Iyo-gun, Ehime Pref.

Claims (3)

[Claims] 1. A seat groove 3 which is annularly depressed is formed around a seating surface 2 of a seat 1 made of a synthetic resin. Driving agricultural machine driving seats. 2. The riding agricultural machine according to claim 1, wherein the inner middle seating surface 5 surrounded by the annular seat groove 3 is formed at a lower position A than the outer peripheral seating surface 6. Driving seat. 3. A driving seat for a passenger agricultural machine, wherein a mounting bracket 7 for mounting the seat and a supporting projection 8 for supporting the seat are integrally formed on the back surface of the synthetic resin seat 1.