JPH0522035Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Industrial application field) This invention is applicable to roll bales (hereinafter simply referred to as veils), synthetic resin films, bags, containers, etc. (hereinafter simply referred to as synthetic resin films). To tell.)
This relates to a cargo handling machine such as a roll bale that can pick up bales wrapped in paper, transport, load, stack, and unload (hereinafter simply referred to as transport, etc.).

(Prior Art) Conventional cargo handling machines such as roll bales of this type cannot be found.

(Problems to be Solved by the Invention) After the bale is produced, it is wrapped in a synthetic resin film, stored for, for example, 6 months, and fermented to become silage and used as feed for dairy cows and the like.

By the way, test results show that over 90% of bales undergo excessive fermentation (secondary fermentation) not on the circumferential side but on the bottom side during the storage period of the bales. This is because the synthetic resin film is not in tensioned contact with the silage, which causes air to enter.

In order to prevent this, it is best to store the bales wrapped in the synthetic resin film in vertical stacks without damaging the synthetic resin film.

In addition, by doing so, it is easy to take out the bale when it is used, which is convenient for work.

(Means for solving the problem) Therefore, this invention was developed to facilitate the above-mentioned work using a cargo handling machine with hawk tines.
Tine holders 2 on both sides are pivotally supported by pins 3 so as to be openable and closable on both sides of a frame 1 which is removably attached to the tip of a front loader B of a tractor A or a three-point link hitch C, and the tine holders 2 and 2 are connected to an opening/closing cylinder 4. The tine holders 2 on both sides of the tine holders 2 are connected to each other so that they can be opened and closed, and the hawk tines 5 are attached to the lower ends of the tine holders 2 on both sides. They are removably fitted and attached to each other, and form a cargo handling machine E in which a bale D wrapped in a synthetic resin film and the like is held between the holding bodies 6, 6.

(Function) When carrying out cargo handling work such as transporting bales that are not wrapped in synthetic resin film using the conventional hawk tines 5, the main pipes 7 on both sides of the cargo handling machine E are removed and the hawk tines 5 on both sides are attached to the frame 1. Once the hawk tines 5 are attached, the bale can be pierced with the hawk tines 5 on both sides, or the bale can be picked up and carried by the hawk tines 5 on both sides, as in the conventional case.

It is also possible to transport containers for storing bales, etc., and pallets such as containers.

On the other hand, when performing cargo handling work such as transporting a bale D wrapped in a synthetic resin film, a main pipe 7 is attached to each of the hawk tines 5 on both sides to constitute a cargo handling machine E, and the main pipes 7, 7 are connected by the opening/closing cylinder 4. After widening the gap and lowering the cargo handling machine E so that the clamps 6, 6 face both sides of the approximately central part of the circumferential surface of the bale D, the opening/closing cylinder 4 is operated in the opposite direction to the above to open the main pipes 7, 7. The bale D is sandwiched between the pinching bodies 6, 6 by moving inward.

Therefore, when the cargo handling machine E is raised, the bale D is lifted while being held between the clamps 6, 6, and the bale D can then be transported by driving the tractor A.

After the bale D is placed at the desired position, when the opening/closing cylinder 4 is operated in the opposite direction to the above to widen the space between the main pipes 7, 7, the clamping bodies 6, 6 are separated from the bale D and the bale D is opened. The grip is released.

(Embodiment) To explain the structure of the first embodiment of this invention shown in FIGS. 1 to 4, A is a tractor;
B is a front loader detachably attached to tractor A, D is a bale wrapped in synthetic resin film,
E shows a cargo handling machine for holding bales attached to the tip of front loader B.

8 is a mounting base of the front loader B, 9 is a lift arm, 10 is a lift cylinder, 11 is a dump link, 12 is a dump cylinder, and 13 is a link.

Reference numeral 1 designates a frame of a cargo handling machine E, and mounting plates 14 on both sides of the frame are removably attached to the tips of a lift arm 9 and a link 13 of a front loader B. Reference numeral 2 designates tine holders on both sides, whose upper ends are pivotally supported by pins 3 on both sides of the frame 1, with pin holes 15 drilled in the lower part, and receiving tubes 16 in the lower ends.
Insert. Reference numeral 4 is an opening/closing cylinder that connects the intermediate portions of the tine holders 2, 2, and 5 is a hawk tine, the base of which is inserted into the receiving tube 16 and is tightened and fixed by a nut 17 screwed onto a protruding screw.

Reference numeral 7 designates main pipes on both sides, a tip 18 is provided at the tip thereof, and a clamp body 6 whose inner open side expands is attached to the tip so that its groove 19 is in the vertical direction. A base plate 20 fixed to the base end of the base plate 20 is provided with arm rods 21 on both sides, and pin holes 22 are bored therein.
23 is a retaining pin.

Although not shown, the pressure oil generator of the tractor A, the opening/closing cylinder 4, the lift cylinder 10, and the dump cylinder 12 are connected to each other by a hydraulic circuit provided with a switching valve.

Next, its effect will be explained.

When the opening/closing cylinder 4 is extended, the tine holders 2, 2 each rotate outward about the pin 3, and the distance between the hawk tines 5, 5 becomes wider. on the other hand,
When the opening/closing cylinder 4 is shortened, the distance between the hawk tines 5, 5 becomes narrower, operating in the opposite manner to the above.

Therefore, when using the Hawk tines 5, 5 to transport bales that are not wrapped in synthetic resin film, the Hawk tines 5, 5, are attached to the tine holders 2, 2 of the cargo handling machine E, respectively. Similarly, the bale is pierced with the hawk tines 5 on both sides, or the bale is held between the hawk tines 5 on both sides by operating the opening/closing cylinder 4, and then the lift cylinder 10 is extended and the front loader B moves the bale through the cargo handling machine. The lifting tractor A is driven to carry the cargo.

On the other hand, when transporting the bale D wrapped in synthetic resin film, the third
As shown in the figure, the main pipe 7 is fitted to the hawk tine 5, the tip 18 of the main pipe 7 is fitted to the tip of the hawk tine 5, and the arm rods 2 on both sides of the main pipe 7 are fitted.
1 into the tine holder 2, and both side arm rods 21
The retaining pins 23 are inserted into the pin holes 22 and 15 of the tine holder 2, and the main pipe 7 is attached to the tine holder 2, thereby constructing a cargo handling machine E for holding bales.

Therefore, after extending the opening/closing cylinder 4 to widen the space between the main pipes 7 and 7 as shown by the chain line in FIG. 6 and 6 are opposed to each other on both sides of the circumferential surface of the vertically placed bale D at approximately the center thereof. Thereafter, the opening/closing cylinder 4 is shortened to move the main pipes 7, 7 inward, and the bale D is sandwiched between the clamping bodies 6, 6 as shown by solid lines in FIG.

Next, when the cargo handling machine E is raised, the bale D is lifted while being held between the clamps 6, 6, and the bale D can then be transported by driving the tractor A.

After the bale D is placed at the desired position, when the opening/closing cylinder 4 is operated in the opposite direction to the above to widen the space between the main pipes 7, 7, the clamping bodies 6, 6 are separated from the bale D and the bale D is opened. The grip is released.

The structure of the second embodiment of this invention shown in FIG. 5 will be described. C is a three-point link hitch of a tractor A, to which a cargo handling machine E is attached.

Even in this structure, when the tractor A, its three-point link hitch C, and the cargo handling machine E are appropriately operated in the same manner as described above, the operation is similar to that described above.

To explain the structure of the third embodiment of this invention shown in Fig. 6, E ₁ indicates a cargo handling machine;
7 ₁ is its main pipe, which is rotatably fitted onto the substrate 20 ₁ . Reference numerals 24 and 24 indicate arm rods on both sides which are crossed in an X shape and whose intersections are pivotally connected by pins 25, and whose base ends are fixed to the distal ends of the main pipes ₇₁ on both sides, respectively.
The lower tip is bent downward, and left and right opposing clamps 6 are attached to the tips, respectively. Other symbols indicate the same parts as in FIGS. 1 to 4.

Even in this structure, if the opening/closing cylinder 4 is extended, the tine holders 2, 2 can be moved to the pins 3, 3.
The arm rods 24, 24 actuate via the hawk tines 5, 5 and the main pipes 7 ₁ , 7 ₁ to expand the left and right sides of the pin 25 as the axis, and the clamp bodies 6, 6 The distance between them becomes wider. On the other hand, when the opening/closing cylinder 4 is shortened, the operation is opposite to that described above, and the distance between the clamps 6, 6 becomes narrower, so that the operation is similar to that of the first embodiment.

To explain the structure of the tine opening/closing device of the fourth embodiment of this invention shown in _FIG .
The center part of the frame 1 is pivotally connected to the center part of the frame 1 by a shaft 27, and the upper end part and the middle part of the one side tine holder 2,
The lower end portion and the intermediate portion of the other side tine holder 2 are connected by links 28, and the upper end of the ram 26 and the upper end portion of the frame 1 on the other side are connected by an opening/closing cylinder 4. Other symbols indicate the same parts as in FIGS. 1 to 4.

Even in this structure, when the opening/closing cylinder 4 is extended, the lever 26 rotates in the counterclockwise direction in FIG. 3, 3 are rotated equally outwardly, and the gap between the clamps 6, 6 becomes wider. On the other hand, if the opening/closing cylinder 4 is shortened,
Since it operates in the opposite manner to the above, the distance between the sandwich bodies 6, 6 becomes narrower, so that it operates in the same manner as in the first embodiment.

The structure of the fifth embodiment of this invention shown in FIG.
Concave grooves 1 of the shape clamps 6 on both sides in the first embodiment
A pair of clamping bodies ₆₃ are attached to the tips of the main pipe 7 on both sides so that 9 is a concave groove ₁₉₃ in the front-rear direction. D ₃ shows a veil wrapped in plastic film and placed on its side. Other symbols indicate the same parts as in FIGS. 1 to 4.

In this structure, the operation is similar to that described above, and as shown in FIG _.
can be carried by being held between the holding bodies 6 ₃ and 6 ₃ .

In addition, the shape clamps 6 on both sides are made rotatable to the main pipes 7 on both sides, and when rotated 90 degrees, the grooves 19 alternately move in the vertical direction shown in FIG. 4 and in the front-back direction shown in FIG. 8. If it is attached so that it can be fixed by changing its direction, the main pipe 7 with one type of clamping body 6 can perform the dual functions of clamping and transporting a bale placed arbitrarily vertically or horizontally.

Further, the shape of the clamping bodies 6 and ₆₃ may be formed into a concave arc shape with the groove located on the inside, instead of the above-mentioned shape in which the inner open side expands, and the same effect as described above will occur.

In addition, when transporting bales wrapped in synthetic resin film to make grass etc. into silage, in order to prevent damage to the synthetic resin film, a hawk tine 5 is used as shown in Figures 9 to 12. Attach rotating tines to.

If you explain its structure with reference to the drawing, D ₄ is a veil wrapped in a synthetic resin film and placed on the side.
E ₄ indicates a cargo handling machine with rotary tines, and 29 is a rotary tine of an appropriate thickness, which is formed in the shape of a hollow roll with a spherical tip, and is rotatably fitted into a central cylinder 30 via bearings 31 at both ends. The elastic receiver tube 32 is fitted into the tip of the center cylinder 30, and the substrate 3
3 is provided with arm rods 34 on both sides, and a pin hole 35 is bored therein. Therefore, as shown in FIG. 9, the rotating tine 2
9 center cylinder 30 to Hawktine 5, tip receiving tube 3
2 to the tips of the hawk tines 5 respectively, fit the tine holder 2 between the arm rods 34 on both sides, and insert the stop pins 23 into the pin holes 35, 15 of the arm rods 34 on both sides and the tine holder 2. A rotating tine 29 is attached to the tine holder 2 to constitute a cargo handling machine _E4 . Other symbols indicate the same parts as in FIGS. 1 to 4.

Next, its effect will be explained. As shown in FIG. 11, the opening/closing cylinder 4 is extended and the rotating tines 29, 2
9, the tractor A is moved forward, and the rotary tines 29, 29 are placed on both sides of the lower part of the bale _D4 .

Therefore, if the opening/closing cylinder 4 is shortened to narrow the space between the rotary tines 29, 29, the rotary tines 29, 29, after hitting the bale _{D4 ,}
The space between the rotating tines 29, 29 narrows while rotating appropriately according to the contact resistance with the synthetic resin film.
The rotating tines 29, 29 can be rotated as shown in FIG. 12 without causing friction between the rotating tines 29, 29 and the synthetic resin film and without tearing the synthetic resin film.
Clamp the veil D ₄ as required. Therefore, after that, the bale _D4 can be transported, etc. by operating in the same manner as when working with the Hawktine 5 described above.

(Effects of the invention) The cargo handling machine such as a roll bale of this invention has the following remarkable effects.

(1) The tine holders on both sides of the cargo handling equipment are rotated to open and close by opening/closing cylinders around their respective pivot pins, and hawk tines are attached to the lower ends of the tine holders on both sides. Therefore, (a) the bale can be worked by piercing the bale with the hawk tines or by holding the bale between the hawk tines in the same manner as in the past.

(b) During work, the distance between the hawk tines on both sides can be changed appropriately depending on the size of the bale, so that work can be performed easily and accurately.

(c) By appropriately changing the spacing between the hawk tines on both sides, it can also be effectively used as a pallet hawk.

(d) The operation of the tine holders on both sides is light and smooth.

(2) By removably fitting and attaching the main pipes with clamping bodies on both sides to the hawk tines on both sides, a cargo handling machine for holding bales can be constructed. Therefore, (a) A cargo handling machine for holding bales is constructed, and a bale wrapped in a synthetic resin film is pinched from both sides by the clamping body of the cargo handling machine, lifted and transported, etc., and holes are made in the synthetic resin film. (i) A bale wrapped in a synthetic resin film can be easily held and transported using a pincher, making it easy to handle and reducing work time.

(ii) Since the synthetic resin film does not tear, good silage can be produced without air entering the synthetic resin film packaging.

(b) A cargo handling machine for holding bales can be configured with a simple structure, and the manufacturing cost is low.

(c) The main pipe with a clamp body can be easily attached and detached from the Hawktine, and its attachment is reliable and solid.

(d) The parts of the cargo handling machine for holding bales are lightweight and small, making them convenient to handle, and they do not require a large space for storage.

[Brief explanation of drawings]

Figure 1 is a side view of a cargo handling machine such as a roll bale according to the first embodiment of this invention attached to a front loader of a tractor, Figure 2 is an enlarged front view of the main parts of the same, and Figure 3 is a side view. 4 is a perspective view of the bale holding member, FIG. 5 is a side view of the cargo handling machine according to the second embodiment of the invention attached to a three-point hitch of a tractor, and FIG. is a front view of a cargo handling machine according to a third embodiment of this invention,
Fig. 7 is a front view of a cargo handling machine according to a fourth embodiment of this invention, Fig. 8 is a slope view of a bale holding member of a cargo handling machine according to a fifth embodiment of this invention, and Fig. 9 is the above-mentioned Figure 10 is a side sectional view of the rotary tine attached to the hawk tine of a cargo handling machine, Figure 10 is a slope view of the rotary tine, Figures 11 and 12 are front views explaining work with the rotary tine, and Figure 11 is a veil FIG. 12 shows the bale before it is pinched by the rotating tines, and FIG. 12 shows the bale in a state where it is pinched and lifted by the rotating tines. A...tractor, B...front loader, C...
...Three-point link hitch, D...Roll veil, E...
...Cargo handling machine, 1...Frame, 2...Tine holder, 3...Pin, 4...Opening/closing cylinder, 5...
Hawk tine, 6...shape body, 7...master.

Claims (1)

[Scope of utility model registration request] Tine holders on both sides are pivotally supported by pins on both sides of the frame, which is removably attached to the tip of the front loader of a tractor or a three-point link hitch, and the tine holders on both sides are connected so that they can be opened and closed by opening/closing cylinders. A roll bale, etc., in which Hawk tines are attached to the lower ends of the tine holders on both sides, and the main pipes on both sides to which left and right opposite side clamps are respectively attached are removably fitted to the Hawk tines on both sides. cargo handling equipment.