JPH0569019B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is directed to, for example, receiving and storing paddy such as rice harvested by a combine harvester at a field site, and installing it in a building of a farm workplace. The present invention relates to a grain storage container for a transport vehicle for transporting and supplying grain to a grain dryer, a grain storage tank, etc.

[Prior Art] Traditionally, transport vehicles for storing grain harvested by a combine harvester or the like in the field and transporting it to farmers' workplaces have generally been equipped with manually tiltable containers mounted on the loading platform of ordinary small trucks. was. This container transmits rotation by a manual handle to a horizontally stretched endless wire via a speed reduction mechanism, and by moving this wire back and forth, the container, whose rear end is pivoted on a frame, is tilted backwards and opened. They used to open it and transfer the stored grain to other processing machines.

In this way, moving the wire through a manual rotation reduction mechanism has the problem of not only requiring a large labor burden on the worker but also requiring a lot of time because the number of rotations is extremely high. However, there are also design problems with the mechanism that allows the wire to support a considerable amount of weight.

As a means to solve these problems, the applicant of the present application proposed a method in which the rear lower end of the grain container is pivoted at the rear end of the underframe, and the lower end of the column is supported at the front of the underframe. A device has been proposed in which the upper part of the pillar and the lower front part of the grain container are connected in a tiltable manner, and the upper part of the pillar is connected to the lower front part of the grain container using an electric pulley block. However, this method has the following problems.

(a) Since the pulley block structure and the motor that drives it are arranged at the front of the grain container,
When mounting this on a transport vehicle, a large space is required between the driver's seat of the transport vehicle and the grain container.
As a result, the size of the grain container is limited, the amount of grain transported at one time is reduced, and the number of times the transport vehicle travels between the field and the workplace increases, resulting in poor operating efficiency.

(b) Since the pulley block has a multi-hook structure, it has the advantage that dumping of grain containers can be done using a small horsepower motor or human power, but the speed at which the grain container is tilted to the required tilting accuracy is slow and efficiency is low. bad.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and solves the problems of the prior art by simple yet rational means. The purpose of this invention is to provide a device that increases the recovery speed, improves the efficiency of grain transport and transfer, and allows stable running of transport vehicles on the road.

[Structure of the invention]

The configuration of the present invention that solves the problems of the prior art is as follows:
A lower rear end of a grain container having an opening that can be opened and closed in the rear wall is pivotally supported on the rear end of an underframe installed on a loading platform of a transport vehicle, and the grain container is tilted backward using the pivot point as a fulcrum, In a device configured to release stored grain by opening an opening, the front end of the frame is provided with:
Connect the lower end of a lower column that is longer than the height of the grain container and the height of the driver's seat of the transport vehicle and that can be tilted at least toward the grain container, and connect the upper end of the lower column with an electrically powered A winding machine such as a chain block is attached, and an upper support that can be bent at a substantially right angle only in the direction opposite to the grain container is pivoted, and one end of a driving cable such as a chain of the winding machine is attached. , characterized in that a suspension roller is connected to the lower front surface of the grain container and provided at the lower end of the upper support for pressing against the chain and applying tension to the chain when the upper support is bent. be.

〔Example〕

The details of the embodiments will be explained with reference to the drawings.

FIG. 1 is a perspective view of the apparatus of the present invention, FIG. 2 is a partially cutaway side view of the same, FIG. 3 is a partially cutaway side view of the device running on the road, and FIG. 4 is a perspective view of the rear part of the grain container.

Reference numeral 1 denotes a cubic grain container with a rectangular base frame 1a provided at the lower bottom, and an opening 2 connected to the inner bottom surface of the grain container 1 is provided in the entire lower width of the rear wall 1b of the grain container 1. be. The upper side of the door 3 is attached to the upper side of the opening 2 by means of a pin structure metal fitting 4 so as to be openable and closable. Further, a door lock shaft 6 that is rotated by operating the operating lever 5 is mounted horizontally at the lower rear of the door 3, and on both sides of the door lock shaft 6, there is a lever 7 whose rear end faces upward. The front end is fixed. On the other hand, a lock hole 8 that fits each other is provided in the relatively thick member frame rod 3a provided at the lower side of the door 3, the bottom plate 1c of the grain container 1 that overlaps the lower surface of the frame rod 3a, and the flange portion of the base frame 1a. A dowel pin 9 is inserted into the lock hole 8 so as to be slidable in the vertical direction, and the upper end of the dowel pin 9 and the rear end of the lever 7 are connected by an arc-shaped link rod 10.
For the rotation of the door lock shaft 6, a vertical movement is given to the knock pin 9 via a lever 7 and a link rod 10, so that the door 3 can be locked and released.

Reference numeral 11 denotes an underframe, and the underframe 11 includes two steel rods 11a provided in parallel along both sides of the grain container 1, and a round rod connecting the front ends of the two steel rods 11a. 11b, and a shaft hole 11c provided at the rear end of both steel rods 11a, in a portion that protrudes rearward from the rear end of the base frame 1a of the grain container 1.
1 is placed on the loading platform 12a of the transport vehicle 12. Then, the grain container 1 is placed inside this underframe 11, and the grain container 1 is provided at the left and right ends of the rear surface of the base frame 1a, and the side surfaces of the base frame 1a are provided so as to protrude outward. The fulcrum shaft 13 is inserted from the inside into the shaft hole 11c provided in the underframe 11,
By attaching the knock pin 13a to the outer protruding end of the fulcrum shaft 13, the grain container 1 can be tilted rearward with respect to the underframe 11, using the fulcrum shaft 13 as a fulcrum, as shown by the imaginary line in FIG. This is what I did.

As shown in FIG. 1, 14a is a portal-shaped lower support, and the lower end of the support 14a is formed with a downward semicircular recess 15 that fits onto the round bar 11b that constitutes the underframe 11. and the lower support 14a is the second
As shown by the imaginary line in the figure, the grain container can be tilted in at least one direction using the round rod 11b as a fulcrum. Further, the length of the lower support column 14a is longer than the height of the grain container 1 and the height of the driver's seat 12b of the transport vehicle 12.

14b is a gate-shaped upper support;
4 is pivotally supported by a shaft pin 16 at the upper end of the lower support 14a and on the inner surface of the lower support 14a. The shaft pin 16
A stopper 17 of the upper support column 14b made of angle material or the like is provided between the front surfaces of the lower support column 14a which is 1/2 the thickness below the upper support column 14b from the pivot point. That is, the distance between the top surface of the stopper 17 and the center of the shaft pin 16 is 1/2 of the distance of the upper support 14b.
The upper support 14b is bent in half approximately at right angles to the lower support 14a, as explained in FIG. 3, which will be described later.

Reference numeral 18 shown in FIG. 1 is a stopper that is provided on the upper front surface of the lower support column 14a and comes into contact with the lower front surface of the upper support column 14a.
8 prevents the upper support 14b from bending backward, more specifically, toward the grain container 1.

Reference numeral 19 denotes a winding machine such as an electric chain block suspended from the center of the upper side of the upper support 14b.
A chain storage bag 21 for a chain 20 that is wound up and unwound by a chain is attached. The chain 20
are suspended from the front center axis of the upper and lower columns 14a and 14b of the portal shape, and one end of the chain 20 is attached to the front lower part of the grain container 1 and connected to the front end of a mounting piece 22. As is clear from FIG. 2, the center of the round bar 11b constituting the underframe 11, the connecting point between the mounting piece 22 and the chain 20, and the chain winding and unwinding points of the winding machine 19 are aligned in a straight line. , chain 20 is on top, bottom support 1
4a, 14b are arranged in such a manner that they are aligned along the center axis of the side surfaces.

Reference numeral 23 denotes a suspension roller rotatably attached to a shaft 24 suspended between the lower ends of the upper struts 14b, and the suspension roller 23 is located close to the chain 20, as shown in FIG. When the upper strut 14b bends forward, it contacts the chain 20 and applies tension to the chain 20. Reference numeral 24 denotes a guide roller disposed at the upper end of the front surface of the grain container 1;
Like the suspension rollers 23, they are provided corresponding to the chain 20, and when the grain container 1 is tilted, they are separated from the chain 20, but when the upper strut 14b is bent, they work together with the suspension rollers 23 to apply tension to the chain 20. It is designed to apply .

Reference numeral 25 denotes a support rod that connects a support shaft 26 protruding from the upper left and right sides of the lower support column 14a to both sides of the rear end of the grain container 1, and the support rod 25 connects at least the lower support rod 14a and the grain container. 1, and when the grain container 1 is tilted, the chain 20 is aligned with the upper and lower supports 14a and 1 when viewed from the side.
4b, and further functions to prevent the grain container 1 from twisting or lateral shaking when the grain container 1 is tilted.

Further, the underframe 11 and the grain container 1 are configured to be separable, and first, the loading platform 12a of the transport vehicle 12 is
After mounting the underframe 11 on top, it is set inside this underframe 11, the rear end of the steel rod 11a is opened outward, and the shaft hole 11c is inserted into the fulcrum shaft 13 provided in the base frame 1a. Thus, the underframe 11 and the grain container 1 are positioned. Moreover, decomposition can be performed by performing the above-mentioned reverse operation.

[Effect]

The operation of the above embodiment will be explained.

As shown in FIG. 3, with the upper support 14b bent forward, the transport vehicle 12 travels on the road to the field, and loads the grain that has been harvested, threshed, and stored by the combine onto the transport vehicle 12. grain container 1
receive it. The transport vehicle 12 then returns to the work site and transfers the loaded grain to a processing device such as a grain dryer.

The operator connects the winding machine 19, such as an electric chain block, to the power source, turns on the switch, and drives the motor of the winding machine in the chain winding direction.
The bent upper strut 14b stands upright due to the reaction force applied to the chain 20, resulting in the state shown in FIG. Furthermore, when the motor continues to be driven in the chain winding direction, the chain 20 is wound up and placed in the chain storage bag 2.
1, and at the same time as the front part of the grain container 1 is pulled upward, the upper and lower supports 14
a and 14b are also tilted as shown by imaginary lines. Then, the unlocked door 3 is automatically opened as shown by the phantom line, the grain is discharged, and other processing equipment is transferred.

When the grain transfer is completed, the winding drive of the chain 20 by the motor is stopped, and then the motor is reversed to let out the chain 20, and the tilted grain container 1 gradually returns to its original position. Grain container 1 is loading platform 1
When the chain 20 continues to be fed out after returning to the top of the chain 2a, the upper support 14b bends forward due to the weight of the chain 20 housed in the chain storage bag 21 in front of the upper support 14b.
At this time, when the suspension roller 23 contacts the chain 20 and the upper strut 14b rotates and bends approximately 90 degrees in a posture that applies tension to the chain 20, the reverse rotation of the motor is stopped by the action of a limit switch, etc., and the upper strut 14b in the bent posture. is supported on the stopper 17. If a limit switch is not provided, the operator may visually check the bending state of the upper support 14b and turn off the motor.

〔effect〕

As described above, according to the present invention, the following effects can be obtained.

(a) The grain collected in the field can be transported to the workplace and the stored grain can be transferred to other processing equipment by dumping the grain container. (b) The grain container can be transferred to an electric chain block, etc. Since the machine is tilted using a winder, the grain can be discharged quickly, and the grain can be transported and discharged many times using a transport vehicle, making it possible to collect grain from the field more efficiently.

(c) Although the height of the column is large due to the use of a winding machine such as an electric chain block, the column is divided into upper and lower sections, and the upper column is bendable, and
Since the length of the lower strut is longer than the grain container and the height of the driver's seat of the transport vehicle, the stability of the transport vehicle when traveling on the road can be achieved by bending the upper strut when the transport vehicle is running on the road.

(d) at the lower end of the upper strut, upon bending of said upper strut;
Since a suspension roller is provided to press against the chain and apply tension to it, this tension action causes the upper strut to perform an inclined refraction action corresponding to the speed at which the chain is fed out, thereby preventing shocks caused by sudden refraction. There is no damage to other mechanisms.

[Brief explanation of the drawing]

Fig. 1 is a perspective view, Fig. 2 is a partially cutaway side view of the same as above, Fig. 3 is a partially cutaway side view when running on the road or stored, and Fig. 4 is a perspective view of the rear part of the grain container. . DESCRIPTION OF SYMBOLS 1... Grain container, 1a... Base frame, 1b... Rear wall surface, 2... Opening, 3... Door, 11... Underframe, 11
a...Steel rod, 11b...Round bar, 11c...Shaft hole,
12... Transport vehicle, 12a... Loading platform, 12b... Driver's seat, 13... Fulcrum shaft, 14a... Lower support, 1
4b... Upper strut, 15... Semicircular recess, 16...
Axis pin, 17...stopper, 18...stopper,
19... Winding machine for electric chain blocks, etc., 2
0... Chain, 21... Chain storage bag, 23...
Suspension roller, 24...Guide roller, 25...Support rod.

Claims (1)

[Claims] 1 (a) The lower rear end of a grain container having an opening that can be opened and closed in the rear wall is pivotally supported on the rear end of an underframe installed on the loading platform of a transport vehicle, and the pivot point is In a device in which the grain container is tilted backwards as a fulcrum and the opening is opened to release the stored grain, (b) the height of the grain container and the height of the driver's seat of the transport vehicle are attached to the front end of the underframe; It is longer than Sayaka, and
At least the lower end of the lower support that can be tilted toward the grain container is connected, and a winding machine such as an electric chain block is attached to the upper end of the lower support, and the lower end is tilted toward the grain container. (c) one end of a driving cable such as a chain of the winding machine is connected to the front lower part of the grain container; A grain storage container for a transport vehicle, characterized in that a suspension roller is provided at the lower end for applying pressure to the chain and applying tension to the chain when the upper support is bent.