JPH0613632Y2 - Hopper cover structure - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a hopper cover for covering the input port of a hopper,
Particularly, it relates to a hopper cover structure that can be easily opened and closed.

[Prior Art] A fertilizer sowing machine is used as a hopper, for example. This fertilizer sowing machine is a kind of agricultural machine tool that disperses fertilizer in a field and sows at the same time.
Publication No. 19929 or the actual application Sho 62 filed by the applicant earlier
-37825 (Shokaisho 63-145410), which is used for general-purpose farmhouses and used for large-scale grassland construction work or grassland renewal work, has fertilizer hopper capacity and seed hopper. There are large ones with a larger capacity than the popular type.

Particularly in recent years, for the purpose of reducing distribution cost, as shown in FIG. 5, a filling cylinder 52 is inserted into a filling port 51 of a general-purpose type flexible container 50 capable of storing about 500 kg of fertilizer, and the filling cylinder 52 is inserted. Fertilizer such as powder and granules is filled from 52 and transported, and as shown in FIG. 6, the fertilizer is directly discharged from the discharge port 53 of the flexible container 50 to the hopper. Tend to be widely opened.

In a hopper with such a wide opening,
The hopper cover covering the input port is of increasing importance.

Conventionally, the hopper cover that covers the input port of the hopper used in the fertilizer sowing machine is simply a frame body composed by connecting multiple steel pipes, that is, a frame covered with a waterproof sheet. there were. Such a hopper cover is rotatably attached to the input port of the hopper, and the input port is opened and closed by rotating the hopper cover manually.

[Problems to be Solved by the Invention] However, in the case of the hopper cover which has flexibility and which covers the input port of the hopper attached to the fertilizer-seeding machine which is an outdoor agricultural working machine, Since the sheet covering the frame of the hopper cover is flexible, rainwater may collect on the sheet during rainfall. Therefore, when the hopper cover is opened or closed, the rainwater collected on the seat may flow into the hopper. Moreover, since the sheet is less durable than a steel plate or the like, the hopper cover is easily damaged.

Certainly, if the sheet part of the hopper cover is made of steel plate, problems such as rainwater inflow and damage may be solved,
Then, there is a problem that the weight of the cover is too large, which makes it difficult to open and close the hopper cover.

In view of the above problems, it has been demanded that the hopper cover that covers the input port of the hopper attached to the fertilizer-seeding machine should be easy to open and close even if the steel plate or the like is relatively heavy.

An object of the present invention is to provide a hopper cover that can be easily opened and closed even if the hopper cover is made of a relatively heavy material such as a steel plate.

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention provides a hopper having a substantially square-shaped input port, in which a base end portion is pivotally supported at one side of the input port and a distal end portion is provided. A first cover member extending to a substantially central portion of the charging port to cover substantially half of the charging port;
A base end portion is pivotally supported by a tip end portion of the first cover member, and a free end portion is extended to a side edge portion opposite to the side edge portion to cover the remaining portion of the charging port and the first end portion. A second cover member that is folded and stored on the outer side surface of the cover member, and a thrower that is attached to the free end side of the second cover member and that traverses when the second cover member is folded and stored. And a roller member for guiding along the side portion of the mouth.

[Operation] When the hopper cover is opened, when the second cover member is pulled toward the first cover member and the vicinity of the base end of the second cover member is lifted upward, the first cover member covers approximately half of the insertion port. The cover member No. 1 rotates in a direction away from the input port with a base end portion pivotally supported on one side portion of the input port as a fulcrum. At the same time, the free end side of the second cover member that covers the remaining portion of the charging port moves in a direction approaching the one side portion of the charging port. That is, the second cover member opens the remaining portion of the insertion opening, and the base end portion of the second cover member pivotally supported by the tip end portion of the first cover member with respect to the first cover member. It is folded and stored. At this time, the roller attached to the free end portion side of the second cover member rolls on the side portion of the insertion port which is to be traversed during folding and rolls along the side portion. Guide the free end. As a result, the second cover member and the first
The cover member is smoothly opened and closed.

Since the hopper cover can be opened by folding it according to the above-described operation, the moment applied to the hopper cover at the time of opening is smaller than that in the case where the hopper cover is composed of a single plate.

Therefore, it is possible to easily open and close the hopper cover.

[Embodiment] An embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1, the hopper cover 1 in this embodiment.
Is used, for example, as a member for covering the fertilizer input port formed in the hopper 3, which is a component of the fertilizer application planter 2.

As is well known, the fertilizer sowing machine 2 is a type of agricultural working machine that disperses fertilizer in a field and sows at the same time, and its main structure is a machine frame 4 having a tow rod 5 for being towed by a tractor or the like. And a front squeeze wheel 6 provided on the machine frame 4 for running on the field to form a sowing bed, and a sowing bed formed by the upper squeeze wheel 6 in synchronization with the squeeze wheel 6. Apply fertilizer to the seeds and sow seeds,
Fertilizer application and sowing device 8 for stopping fertilization and sowing when the rotation of the fertilizer is stopped, and a rear squeezing wheel 9 for covering the seed bed fertilized and seeded by these fertilizer application device 7 and sowing device 8. A traveling wheel 10 which is provided on the machine frame 4 so that it can travel in the pulling direction and can be freely taken off and landed, and when the landing is performed, the front and rear crushing wheels 6 and 9 are raised to separate from the ground. It is composed of Here, the fertilizer application device 7 is mainly composed of a hopper 3, a hopper cover 1, and a feeding device 11.

As shown in FIG. 2, the hopper 3 is provided with a feeding device 11 for feeding the fertilizer inside, and an input port 12 for inputting the fertilizer is opened to cover the input port 12. The hopper cover 1 is provided to be openable and closable.
In addition, the input port 12 opened in the upper part of the hopper 3 can supply a larger amount of fertilizer than the flexible container, for example.
The opening is wide so that it can be directly put into the inside, and the plane thereof has, for example, a substantially rectangular shape of a rectangle.

The hopper cover 1 is made of a metal material such as a durable steel plate, and is composed of a first cover member 13, a second cover member 14, and a roller member 15 as main parts. First
The cover member 13 has a base end portion 16 pivotally supported on one side portion 17 of the charging port 12, and a tip portion 18 of the cover member 13 is sequentially inclined upward toward a substantially central portion 19 of the charging port 12. It is extended to cover almost half of the input port 12. The second cover member 14 is
The base end 20 of the second cover member 14 is pivotally supported by the tip end 18 of the first cover member 13, and the free end 21 of the second cover member 14 is supported.
Are sequentially extended to the side portion 22 on the opposite side of the side portion 17 while inclining downward to cover the remaining portion of the charging port 12 and are folded on the outer surface 23 of the first cover member 13. It is configured to be stacked and stored. The roller member 15 is the second
Insertion port attached to the free end portion 21 side of the cover member 14 and traversing when the second cover member 14 is folded and stored.
It is a member for guiding along the side edge portion 22 of the twelve.

The structure of the hopper cover 1 will be described in more detail as follows.

That is, the side surface shape of the hopper cover 1 has an apex 24 having an acute angle at an intermediate portion in the front-rear direction, and inclined surfaces 25, 26 descending from the top 24 in the front-rear direction and self-ends of the inclined surfaces 25, 26. It has a shape formed by side plates 27 and 28 which are bent vertically downward from the part side. Further, the hopper cover 1, that is, the second cover member 14 and the first cover member 13 are formed by being superposed on each other from the top 24 to a little rear. The front surface 30 of the inclined surface 29 of the first cover member 13 is superposed on the inside of the inclined surface 26 behind the top portion 24 of the second cover member 14, and both side plates of the second cover member 14 are overlapped. No. 1 inside the base end 20 of 31, 31
Both side plates 32 of the cover member 13 overlap with each other in a state where the tip ends 18 of the plates 32 are in contact with each other. The second cover member 14 and the first cover member 13 are pivotally supported by a shaft 33 at the overlapping portions of the side plates 31 and 32, respectively. The pivot 34 is located substantially in the middle of the top 24 and the bottom surface 35 of the hopper cover 1 and slightly rearward of the top 24.

As shown in FIG. 3, both front side plates of the second cover member 14
Arm members 36, 36 project forward from the members 31, 31, shafts 37, 37 projecting outward are fixed to the arm members 36, 36, and rollers 37, 37 are mounted on the shafts 37, 37. 15 and 15 are pivotally supported. Further, handles 38, 38 are provided on the inclined surface 25 of the second cover member 14. First cover member 13
The base end portion 16 which is bent downward in the vertical direction at the rear has a pair of arms 39, 39 projecting rearwardly fixed at two positions at predetermined intervals, and at two positions on one side portion 17 of the inlet 12. It is rotatably supported by a pair of upright brackets 40, 40, a shaft 41, and arms 39, 39. Locking metal fittings 42 are fixed to the rear of the side portion 17 of the charging port 12 and in the vicinity of both end portions of the hopper 3.

As shown in FIG. 4, the shape of the locking metal fitting 42 is such that the opening 43 has a substantially U-shaped side cross section and is in contact with the side portion 17 of the charging port 12 corresponding to the upper surface of the hopper 3. A cutout portion 45 is formed on the bottom surface 44 of the shape, and an arm 46 is formed inside the U-shape behind the cutout portion 45 in a state of protruding from the end portion of the U-shape toward the hopper cover 1 side. Has been done. The opening width of the U-shaped opening portion 43 is formed slightly wider than the diameter of the roller 15, and the front-back width of the cutout portion 45 corresponds to that of the cutout portion 45.
The width is such that the roller 15 can be slightly moved in the cutout portion 45 in a state where the roller 15 is located and the outer peripheral portion of the roller 15 is in contact with the side portion 17 of the insertion port 12.

The side plate 31 of the second cover member 14 does not come into contact with the arm 46 provided inside the U-shape, and the bottom surfaces of the arm members 36 projecting on both front sides of the second cover member 14 come into contact with the arm 46. It protrudes to the position.

Next, the operation of the hopper cover 1 will be described.

When the hopper cover 1 is opened as necessary, such as when pouring fertilizer into the hopper 3, a force is applied to the vicinity of the side plate 27 so that the second
The cover member 14 is pulled toward the first cover member 13 side.
At this time, since the roller 15 guides the second cover member 14 along the side edge portion 22 while being in contact with the side edge portion 22 of the insertion port 12 which is traversed when the second cover member 14 is folded and stored. The second cover member 14 and the first cover member 13 are connected to each other by a shaft.
Bend gradually around 33. That is, the first cover member
The reference numeral 13 rotates upward about a shaft 41 which is a connecting portion between the base end portion 16 and one side portion 17 of the charging port 12 to connect the first cover member 13 and the second cover member 14. The shaft 33, which is a part, also moves upward. At this time, the free end portion 21 of the second cover member 14
Slides on the side part 22 of the inlet 12 via the roller 15. As the included angle between the first cover member 13 and the second cover member 14 becomes smaller, the cover member 1 in the insertion port 12
The area not covered by 3 and 14 becomes large, and the second cover member 14 is folded and stored on the first cover member 13. At this time, the roller 15 that has been rolling on the side portion 22 of the insertion opening 12 then enters the U-shaped opening 43 of the locking fitting 42, and the bottom surface of the arm member 36 and the locking fitting 42. Arm 46
And abut (Fig. 4).

When the cover members are completely pulled in this way, the center of gravity of the hopper cover 1 is located on the right side of the shaft 41, and the folded first and second cover members 13 and 14 are likely to fall out of the insertion port 12. To do. However, since the roller 15 and the inner surface of the upper surface of the U-shaped opening 43 of the locking fitting 42 are in contact with each other and locked, the hopper cover 1 is stably held in the state shown in FIG.

The aircraft leans forward on a sloping ground, and the center of gravity of the hopper cover 1 becomes
When it is located on the left side of the, the roller 15 abuts against the front end of the cutout portion 45 and is locked.

When the input port 12 is covered with the hopper cover 1, the handle 38 is pulled to the front, the bent hopper cover 1 is activated, and the reverse operation of the fertilizer input procedure is performed.

When opening the input port 12, the opening operation is further facilitated by holding the handle 38 and pushing the side plate 27 while raising the top 24 side of the hopper cover 1 upward.

The hopper cover structure according to the embodiment of the present invention is not limited to the fertilizer sowing machine as its application, but is also effective for a machine that requires a large hopper, such as a fertilizer spreader.

Since the hopper cover structure according to the embodiment of the present invention is divided into the first cover member and the second cover member, the cover members are rotatably connected, and the roller is disposed in the front portion of the cover, Despite the fact that the hopper cover is made of a relatively heavy and rigid material, it can be opened and closed easily and a material with increased durability can be used, so maintenance work for damage to the cover is reduced. .

In addition, in the hopper cover structure according to the embodiment of the present invention, since the top of the hopper cover that covers the charging port is formed into an obtuse angle and is formed of a material having relatively rigidity, rainwater and the like are collected on the upper surface of the hopper cover. As a result, it is possible to prevent water from flowing into the hopper when opening the charging port.

Since a handle is attached to the hopper cover, when opening the input port, the opening operation becomes easier by holding the handle and pushing the side plate while lifting the top side of the cover upward.

[Effect of the Invention] As described above, according to the present invention, even if the hopper cover that covers the inlet of the hopper is made of a material such as a relatively heavy steel plate, it is easy to open and close the hopper cover. You can do it.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention, FIG. 2 is a side view of a hopper and a hopper cover according to the embodiment of the present invention, and FIG. 3 is a main part of a hopper and a hopper cover according to the embodiment of the present invention. FIG. 4 is a plan view showing a main part of a hopper and a hopper cover according to an embodiment of the present invention, FIG. 5 is a perspective view showing a state in which fertilizer is filled in a flexible container, and FIG. It is a perspective view showing the discharge state of the fertilizer. In the figure, 12 is an inlet, 3 is a hopper, 17 is one side part, 28 is a base end part, 18 is a tip part, 13 is a first cover member, 23 is an outer surface, and 14 is a second cover member. , 21 is a free end portion of the second cover member, 22 is a side portion of the insertion port, and 15 is a roller member.

Claims (1)

[Scope of utility model registration request] 1. In a hopper having a substantially square-shaped input port, a base end portion is pivotally supported on one side of the input port, and a tip end portion is extended to a substantially central portion of the input port so that the input port of the input port is extended. A first cover member for covering substantially half of the first cover member, a base end portion of which is pivotally supported by a front end portion of the first cover member, and a free end portion of which extends to a side portion opposite to the side portion. A second cover member that covers the remaining portion of the input port and is folded and stored on the outer surface of the first cover member, and a second cover member that is attached to the free end side of the second cover member. A hopper cover structure, comprising: a roller member for guiding along a side portion of a charging port that traverses when the cover member is folded and stored.