JP2005130720A - Grain tank structure of combine harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To compose a grain tank structure so as to suitably respond to a state in which grains stay on the top surfaces of top board members in a state of a transverse wall part operated to an overhanging posture when the transverse wall part on the transverse outside of a grain tank is composed so as to be subjected to freely shaking operation in a housed posture and the overhanging posture overhanging to the transverse outside around a fulcrum in the lower part in the grain tank structure of a combine harvester. <P>SOLUTION: The transverse wall part 6 on the transverse outside of the grain tank 5 is composed so as to be subjected to the freely shaking operation in the housed posture and the overhanging posture overhanging to the transverse outside around the fulcrum in the lower part. Freely foldable top board members 14 and 15 are connected to the upper part of transverse wall part 6 and the grain tank 5. Openings 19 and 20 for returning grains emerging to the top surfaces of the top board members 14 and 15 to the interior are installed in the top board members 14 and 15. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a structure for increasing the capacity of a grain tank in a combine grain tank.

In a combine equipped with a Glen tank, for example, as disclosed in Patent Document 1, the lateral wall portion (9 in FIGS. 1, 2 and 3 of Patent Document 1) is placed in the retracted posture and the lateral outside. The top plate member is configured to be swingable around the lower fulcrum in a projecting posture protruding in the direction, and can be folded over the upper portion of the lateral wall portion and the Glen tank (see FIGS. 1, 2, and 3 of Patent Document 1). 11) is connected, and a front wall portion and a rear wall portion (10 in FIGS. 1, 2, and 3 of Patent Document 1) are connected to the front portion and the rear portion of the lateral wall portion.
Accordingly, when the horizontal wall portion is operated to the retracted posture (see FIG. 1 of the patent document), the top plate member is folded and the front wall portion and the rear wall portion enter the inside of the Glen tank. When the horizontal wall portion is manipulated to the protruding position (see FIG. 2 of Patent Document 1), the top plate member extends, the front wall portion and the rear wall portion come out of the Glen tank, and the capacity of the Glen tank increases.

JP-A-4-293425 (FIGS. 1, 2, and 3)

  In the combine, the grain that has been threshed by the threshing device is conveyed upward by the conveying device (4 in FIGS. 1, 2, and 3 of Patent Document 1), and is released from the conveying device to the inside of the glen tank. Is stored in the Glen tank. In this case, in order to feed the grain from the transport device to every corner of the Glen tank, the grain is released from the transport device into the Gunle tank vigorously, and the grain is scattered inside the Glen tank. It is in a state of being.

As described above, since the grains are scattered inside the Glen tank, the gap between the top plate member and the Glen tank and the top plate member and the front wall can be obtained in the state where the lateral wall portion is operated in the protruding position. Grain may go out to the outside through the gap between the parts and the gap between the top plate member and the rear wall, and the grains may stay on the top surface of the top plate member.
In order to prevent the grains from staying on the top surface of the top plate member, the clearance between the top plate member and the Glen tank, the gap between the top plate member and the front wall, the top plate member and the rear plate It is necessary to provide a sufficient seal in the gap between the walls, but in practice it is often difficult to provide a sufficient seal so that small grains do not come out. Moreover, if a sufficient seal is applied, the structure becomes complicated and the production cost increases.

  In the grain tank structure of the combine according to the present invention, when the lateral wall portion on the lateral outer side of the grain tank is configured to be swingable around the lower fulcrum in the retracted posture and the projecting posture protruding laterally, the lateral wall portion is projected. In the state operated to (2), it aims at comprising so that a grain can respond appropriately to the state where grain stays on the upper surface of a top plate member.

[I]
(Constitution)
The first feature of the present invention resides in the following configuration in the grain tank structure of the combine.
The horizontal wall part on the lateral outer side of the Glen tank is configured to be swingable around the lower fulcrum in the retracted position and the protruding position that protrudes outward, so that it can be folded over the upper part of the horizontal wall part and the Glen tank. The plate members are connected, and the front wall portion and the rear wall portion are connected to the front portion and the rear portion of the lateral wall portion. When the horizontal wall portion is operated to the retracted posture, the top plate member is folded so that the front wall portion and the rear wall portion enter the inside of the Glen tank. When the horizontal wall portion is operated to the overhanging posture, the top plate member extends so that the front wall portion and the rear wall portion come out of the Glen tank, and the capacity of the Glen tank is increased. The top plate member is provided with an opening for returning the grains that have come out on the top surface of the top plate member to the inside of the Glen tank.

(Function)
According to the first feature of the present invention, in a state in which the horizontal wall portion is operated in an overhanging posture, the clearance between the top plate member and the Glen tank, the clearance between the top plate member and the front wall portion, the top plate member Even if the grain goes out to the outside and stays on the top surface of the top plate member through the gap between the rear wall portion and the rear wall portion, the grain can return from the opening to the inside of the Glen tank. Thereby, even if a grain goes out and tries to stay on the upper surface of the top plate member, the state that the grain is returned from the opening to the inside of the Glen tank can be repeated.

  As described above, even if the grain goes out and stays on the top surface of the top plate member, if the state that the grain is returned from the opening to the inside of the Glen tank is repeated, the top plate member and the Glen It is not necessary to provide a sufficient seal for the gap between the tank connection portion, the gap between the top plate member and the front wall portion, and the gap between the top plate member and the rear wall portion.

(The invention's effect)
According to the first feature of the present invention, in the grain tank structure of the combine, when the lateral wall portion on the lateral outer side of the grain tank is configured to be swingable around the lower fulcrum in the retracted posture and the outwardly projecting posture. In the state where the horizontal wall portion is operated in the overhanging posture, even if the grain goes out and tries to stay on the top surface of the top plate member, the grain can be returned from the opening to the inside of the Glen tank. Thus, the state in which the grains stay on the top surface of the top plate member can be reduced.

  According to the first feature of the present invention, even if the grain goes out and stays on the top surface of the top plate member, the state that the grain is returned from the opening to the inside of the Glen tank is repeated. Therefore, a sufficient seal should be provided for the gap between the top plate member and the Glen tank, the gap between the top plate member and the front wall portion, and the gap between the top plate member and the rear wall portion. This eliminates the need to apply them, thus avoiding complicated structures and increased production costs.

[II]
(Constitution)
The second feature of the present invention lies in the following configuration in the combine grain tank structure of the first feature of the present invention.
Two top plate members are connected via a hinge member, a portion of the two top plate members opposite to one hinge member is connected to the Glen tank, and the other of the two top plate members is connected A portion opposite to the hinge member is connected to the upper portion of the lateral wall portion. In the retracted posture of the horizontal wall portion, the two top plate members are configured to be folded so that the hinge member is positioned below the portion of the two top plate members opposite to the hinge member.

(Function)
According to the second feature of the present invention, the “action” described in the preceding item [I] is provided in the same manner as the first feature of the present invention, and in addition to this, the following “action” is provided.
According to the second feature of the present invention, in a state where the lateral wall portion is operated in the overhanging posture, the two top plate members are turned sideways, and the grain goes out and tries to stay on the upper surfaces of the two top plate members. The grain can be returned from the opening to the inside of the Glen tank.

  According to the second feature of the present invention, the two top plates are arranged so that the hinge members are positioned below the portions of the two top plate members opposite to the hinge members in a state where the horizontal wall portion is operated in the retracted position. The member is folded. Thereby, even if there is a grain that remains on the top surface of the two top plate members without returning from the opening to the inside of the Glen tank, the two top plate members are moved and inclined by folding the two top plate members. Since the grains remaining on the upper surface of the two are about to be collected at the connecting portion (hinge member) of the two top plate members, the grains can be returned from the opening to the inside of the Glen tank.

(The invention's effect)
According to the second feature of the present invention, the “effect of the invention” described in the preceding item [I] is provided in the same manner as the first feature of the present invention. In addition, the following “effect of the invention” is provided. ing.
According to the second feature of the present invention, when there is a grain that remains on the upper surfaces of the two top plate members without returning from the opening to the inside of the Glen tank, when operating the horizontal wall portion to the retracted position, 2 The grains remaining on the top surfaces of the two top plate members can be returned to the inside of the Glen tank from the opening, and the state where the grains stay on the top surfaces of the two top plate members can be reduced. .

[III]
(Constitution)
A third feature of the present invention resides in the following configuration in the combine grain tank structure of the second feature of the present invention.
An opening is provided in the vicinity of the hinge member in the two top plate members.

(Function)
According to the third feature of the present invention, as in the second feature of the present invention, the “action” described in the preceding paragraphs [I] and [II] is provided. In addition, the following “action” is provided. Yes.
As described in [II] above, in the state in which the horizontal wall portion is operated in the retracted position, the two ceiling plates are positioned so that the hinge members are positioned below the portions of the two top plate members opposite to the hinge members. Since the plate member is folded, the hinge member is in the lowest position in the two top plate members.

  Accordingly, as described in the third feature of the present invention, when the opening portion is provided in the vicinity of the hinge member in the two top plate members, the opening portion returns to the inside of the Glen tank as described in [II] above. Even if there is a grain that remains on the top surface of the two top plate members, the grain remaining on the top surface of the two top plate members may be collected at the connecting portion (hinge member) of the two top plate members. Therefore, the grain can be returned to the inside of the Glen tank from the opening without difficulty.

(The invention's effect)
According to the third feature of the present invention, the “effect of the invention” described in the preceding paragraphs [I] and [II] is provided in the same manner as the second feature of the present invention. In addition, the following “effect of the invention” is provided. Is provided.
According to the third feature of the present invention, by providing an opening in the vicinity of the hinge member in the two top plate members, it remains on the upper surface of the two top plate members without returning from the opening to the inside of the Glen tank. Even if there is a grain, the grain remaining on the upper surface of the two top plate members can be easily returned to the inside of the Glen tank from the opening, and the kernel stays on the upper surface of the top plate member. We were able to reduce the state.

  As shown in FIG. 1, a cutting part 2 is provided on the left part of the front part of the airframe supported by the crawler type traveling device 1, and a driving part 3 is provided on the right part of the front part of the airframe. A threshing device 4 and a glen tank 5 are provided on the right side of the rear part of the machine body to constitute a self-detaching combine. The cereals harvested by the reaping unit 2 are threshed by the threshing device 4, and the grains recovered by the threshing device 4 are supplied to the glen tank 5 via the transport device 22 (see FIG. 2).

Next, the structure of the Glen tank 5 will be described.
As shown in FIGS. 1, 2, and 5, the Glen tank 5 is made of a sheet metal and is formed in a box shape. It is configured to include a bottom portion 5d and a top plate portion 5e formed on an inclined surface, and includes a lateral wall portion 6 on the lateral outer side. The conveying device 22 is connected to the upper part of the lateral wall portion 5 c of the Glen tank 5, and the grains are discharged from the conveying device 22 into the Glen tank 5 and stored in the Glen tank 5.

  As shown in FIG.1 and FIG.2, the bottom screw 7 which carries out grain is provided in the bottom part 5d of the Glen tank 5, and the raising apparatus 8 is provided in the lower part of the rear wall part 5b of the Glen tank 5. As shown in FIG. The bottom screw 7 and the lifting device 8 are connected. Thereby, the grain stored in the glen tank 5 can be discharged from the glen tank 5 from the bottom screw 7 via the lifting device 8. As shown in FIG. 1, a Glen tank 5 is swingably supported around the vertical axis P <b> 1 of the lifting device 8, and the Glen tank 5 is moved away from the machine body and the working position along the machine body. The position can be changed over the work position.

  As shown in FIGS. 2 and 5, the lower portion of the horizontal wall portion 6 is swingably supported around the horizontal axis P <b> 2 at the lower portion of the Glen tank 5, and the front wall portion 9 having a fan-shaped front view is the horizontal wall portion. 6, and a rear wall portion 10 having a fan-shaped front view is connected to a rear portion of the lateral wall portion 6. The upper edge portions 9a, 10a of the front and rear wall portions 9, 10 are bent, and the upper edge portions 9a, 10a of the front and rear wall portions 9, 10 are formed on arcuate surfaces around the horizontal axis P2 in a front view. 2 (see FIG. 2), small engagement holes 9b, 10b are opened in a row in the upper edge portions 9a, 10a of the front and rear wall portions 9, 10.

  As shown in FIGS. 1, 2, and 3, the drive shaft 11 is rotatably supported over the front and rear wall portions 5 a and 5 b of the Glen tank 5, and the sprocket 11 a is fixed to both ends of the drive shaft 11. Has been. A sprocket 11 a of the drive shaft 11 is engaged with engagement holes 9 b and 10 b of the front and rear wall portions 9 and 10, and a motor 12 that rotationally drives the drive shaft 11 is provided on the front wall portion 5 a of the Glen tank 5. ing. Accordingly, the sprocket 11a of the drive shaft 11 is rotationally driven by the motor 12, so that the retracted attitude along the Glen tank 5 (see FIG. 3) and the protruding attitude laterally outward (see FIG. 4) are obtained. The horizontal wall portion 6 can be operated around the horizontal axis P2. As shown in FIG. 3, the front and rear wall portions 9 and 10 enter the inside of the Glen tank 5 in a state in which the horizontal wall portion 6 is operated in the retracted position, and the inner surfaces of the front and rear wall portions 5 a and 5 b of the Glen tank 5. It will be in a state along. As shown in FIG. 4, the front and rear wall portions 9 and 10 protrude laterally outward from the glen tank 5 in a state in which the horizontal wall portion 6 is operated in an overhanging posture.

  As shown in FIGS. 2, 3, 4, and 5, the top plate member 14 is attached to the drive shaft 11 by the hinge member 13, and the top plate member 14 can swing up and down around the horizontal axis P <b> 3 of the drive shaft 11. A horizontally long cover 21 that is supported and disposed between the front and rear wall portions 9 and 10 and covers the drive shaft 11 is provided on the top plate portion 5 e of the Glen tank 5. A top plate member 15 is supported between the front and rear wall portions 9 and 10 so as to be swingable up and down around the horizontal axis P4 at the top of the horizontal wall portion 6. A hinge member 16 is fixed to an end portion of the top plate member 14 with a predetermined interval, and a hinge member 17 is fixed to an end portion of the top plate member 15 with a predetermined interval, and spans the hinge members 16, 17. One support shaft 18 is inserted. Thereby, the edge part of the top-plate members 14 and 15 is connected so that rocking | fluctuation around the horizontal axis P5 of the support shaft 18 is possible.

  As shown in FIGS. 4 and 6 (a) and (b), bent portions 14a and 15a facing downward are formed at the end portions of the top plate members 14 and 15, and the end portions of the top plate members 14 and 15 are formed. In a state where the hinge members 16 and 17 and the support shaft 18 are connected, the bent portions 14a and 15a of the top plate members 14 and 15 are slightly separated from each other. As a result, as shown in FIGS. 5 and 6A and 6B, an opening 19 is formed between the bent portion 14a of the top plate member 14 and the hinge member 17, and the bent portion 15a of the top plate member 15 is formed. An opening 20 is formed between the hinge member 16 and the hinge member 16.

  With the above structure, as shown in FIG. 3, when the horizontal wall portion 6 is operated to the retracted position, the top plate members 14 and 15 swing downward about the horizontal axis P3, P4, and the horizontal axis P3, The top plate members 14 and 15 are folded so that the hinge members 16 and 17 are located below the position of P4 (the portion of the two top plate members 14 and 15 opposite to the hinge members 16 and 17).

  As shown in FIGS. 4, 5, 6 (b) and (b), in the state where the horizontal wall portion 6 is operated to the overhanging posture, the capacity of the Glen tank 5 is increased by the amount that the horizontal wall portion 6 protrudes laterally outward. . In a state where the horizontal wall portion 6 is operated to the overhanging posture, the top plate members 14 and 15 swing upward about the horizontal axis P3 and P4, and the top plate members 14 and 15 extend. In this state, the top plate members 14 and 15 are inclined in a laterally outward direction, and a gap between the top plate member 14 and the top plate portion 5e of the Glen tank 5 (near the drive shaft 11). ), The gap between the top plate members 14, 15 and the front wall portion 9, and the gap between the top plate members 14, 15 and the rear wall portion 10, and the grains go outside. However, the grains return to the inside of the Glen tank 5 from the openings 19 and 20 and the grains go out to the outside, and the top surfaces of the top plate members 14 and 15. Even if it is going to stay, the state that the grain is returned to the inside of the Glen tank 5 from the openings 19 and 20 can be repeated.

  In this case, as shown in FIGS. 4, 5, 6 (A) and (B), the top plate members 14, 15 are generally inclined laterally outward in a state where the horizontal wall portion 6 is operated in the protruding position. Therefore, the grain that goes outside and tries to stay on the upper surface of the top plate member 14 reaches the opening 19 along the inclination of the top plate member 14 and passes through the inside of the Glen tank 5 from the opening 19. It is easy to be returned to. Even if the grain is released from the transport device 22 into the Gunle tank 5 vigorously and the grain is scattered inside the Glen tank 5, the bent parts 14a and 15a of the top plate members 14 and 15 The state in which the grain comes out from the openings 19 and 20 is prevented.

[First Alternative Embodiment of the Invention]
The present invention can be applied not only to a self-removing combine but also to an ordinary combine.

Combine side view Overall longitudinal rear view of the Glen tank with the horizontal wall operated to the extended position Longitudinal rear view of the top of the Glen tank with the horizontal wall operated to the retracted position Longitudinal rear view of the upper part of the Glen tank with the horizontal wall part operated to the extended position Perspective view of the top of the Glen tank with the horizontal wall operated to the overhanging posture Longitudinal rear view of the hinge member and support shaft in the state in which the horizontal wall portion is operated to the protruding position

Explanation of symbols

5 Glen tank 6 Horizontal wall portion 9 Front wall portion 10 Rear wall portion 14, 15 Top plate member 16, 17 Hinge member 19, 20 Opening portion P2 fulcrum

Claims (3)

The lateral wall portion on the lateral outer side of the Glen tank is configured to be swingable around the lower fulcrum in the retracted posture and the projecting posture protruding laterally, and can be folded over the upper portion of the lateral wall portion and the Glen tank. Connect the top plate member, connect the front wall part and the rear wall part to the front part and the rear part of the lateral wall part,
When the horizontal wall portion is operated to the retracted posture, the top plate member is folded, and the front wall portion and the rear wall portion enter the interior of the Glen tank,
When the horizontal wall portion is operated in the projecting posture, the top plate member extends, the front wall portion and the rear wall portion come out of the Glen tank, and the capacity of the Glen tank is increased.
A grain tank structure for a combine, wherein the top plate member has an opening for returning the grain that has come out on the top surface of the top plate member to the inside of the grain tank. Two top plate members are connected via a hinge member, a portion of the two top plate members opposite to one hinge member is connected to a glen tank, and of the two top plate members, Connecting the portion on the opposite side of the other hinge member to the top of the lateral wall,
In the retracted posture of the lateral wall portion, the two top plate members are configured to be folded so that the hinge member is positioned below the portion of the two top plate members opposite to the hinge member. The combine grain tank structure according to claim 1.   The combined grain tank structure according to claim 2, wherein the opening is provided in the vicinity of the hinge member of the two top plate members.

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