JP3268752B2 - Multi film removal equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a multi-film removing apparatus.

[0002]

2. Description of the Related Art Conventionally, as one form of a multi-film removing device, there is a device for removing a multi-film stretched on a surface of a ridge in a field while being pulled by a towing vehicle, while winding the film by a winding drum.

[0003]

However, in the above-mentioned multi-film removing apparatus, since the multi-film is forcibly pulled and wound by the winding drum, when the multi-film is overloaded, for example, If the take-up drum operates to take-up even though the towing vehicle is stopped, the multi-film may be cut off halfway.

[0004] For this reason, there is a disadvantage that the cut portion of the multi-film must be wound around the winding drum again.

[0005] Furthermore, the worker may proceed with the work without noticing that the multi-film has been cut, thereby deteriorating the work efficiency.

[0006]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a multi-film removing apparatus for removing a multi-film stretched on the surface of a field ridge while being towed by a towing vehicle. In a multi-film removing apparatus configured to stop a squeezing operation when an overload is applied to the squeezed multi-film, the squeezing roller section is provided. A power transmission unit that receives power from the towing vehicle and transmits power to the squeezing roller unit, a cover body that covers the squeezing roller unit so as to be openable and closable, and a clutch unit in the power transmission unit. It is an object of the present invention to provide a multi-film removing apparatus in which a clutch disengaging operation of a clutch unit and an opening operation of a cover body are linked.

Further, according to the present invention, the squeezing roller portion is provided with a driving roller, a driven roller disposed so as to be able to freely contact and separate from the driving roller, and interlockedly connected to the driven roller.
An overload detector for detecting an overload acting on the multi-film being scraped, the driven roller being elastically urged to press against the drive roller, and interlocking with the overload detection operation of the overload detector. It is also characterized in that it is configured to be separated from the drive roller.

[0008]

Embodiments of the present invention will be described below.

That is, the multi-film removing apparatus according to the present invention removes a multi-film stretched on the surface of a ridge in a field while being pulled by a towing vehicle.

In this multi-film removing apparatus, a squeezing roller unit for squeezing the multi-film is provided in the main body of the apparatus. It is configured to stop the scraping operation.

In this way, it is possible to prevent a problem that the multi-film is cut from the middle.

When the overload does not act on the multi-film, the squeezing roller section can restart the squeezing operation and continue the multi-film removing operation.
Work efficiency can be improved.

In addition, the squeezing roller portion is provided with a driving roller, a driven roller which is disposed so as to be able to freely contact and separate from the driving roller, and is interlockedly connected to the driven roller, and acts on the multi-film to be squeezed. An overload detector that detects an overload that occurs, the driven roller being elastically urged to press against the drive roller, and separated from the drive roller in conjunction with the overload detection operation of the overload detector. Make up.

In this manner, the squeezing operation of the squeezing roller portion and the stopping of the squeezing operation can be performed with a simple structure, and also in this respect, the efficiency of the multi-film removal operation is improved. be able to.

Further, a power transmission unit for receiving power from the towing vehicle and transmitting the power to the squeezing roller unit, and a cover body for covering the squeezing roller unit in an openable and closable manner are provided in the apparatus body. And a clutch disengaging operation of the clutch unit and an opening operation of the cover body are linked with each other.

In this way, when the work of first bundling the multi-film into the squeeze roller portion and sandwiching it, or performing the inspection work of the squeeze roller portion, etc., it is inevitably opened. The operation of the squeeze roller portion is stopped in conjunction with the opening operation of the cover body, thereby ensuring the safety of the worker.

[0017]

Embodiments of the present invention will be described below with reference to the drawings.

A shown in FIG. 1 is a multi-film removing apparatus according to the present invention. The removing apparatus A can be lifted and lowered via a three-point link type lifting mechanism C behind a tractor B as a towing vehicle. This is to remove the multi-film M connected and stretched on the surface of the ridge U of the field G.

The left and right side edges m, m of the multi-film M are buried in the field G so that the multi-film M will not be peeled off by the wind.

The multi-film removing apparatus A is shown in FIGS.
As shown in the figure, the excavating part 2 excavating the left and right side edges of the ridge U of the field G to expose the left and right side edges m, m of the multi-film M is formed in the apparatus body 1. The upper folded guide portion 3 for guiding the multi-film M excavated by the portion 2 and easily peeled upward in a folded shape, and the multi-film M guided upward by the upper folded guide portion 3 is rubbed. A squeezing roller unit 4, a storage unit 5 for accommodating the multi-film M squeezed by the squeezing roller unit 4, and a squeezing roller unit which receives power from a tractor B to drive the squeezing roller unit 4 4 and a power transmission unit 6 for transmitting power.

The apparatus main body 1 has a connecting frame 11 erected at the front end of a main body frame 10 formed in a rectangular frame shape in plan view.
A support frame 12 is erected at the rear end of the main body frame 10, a rolling wheel support frame 13 extending in the left and right direction is laterally extended at the rear end of the main body frame 10, and a pair of left and right The rolling wheels 14, 14 are mounted via rolling wheel supports 15, 15 so that the vertical and horizontal sliding positions can be adjusted.

The excavating portion 2 is provided with a horizontal frame 20 extending horizontally in the rear part of the main body frame 10, and a pair of excavating frames 21, 21 is provided at left and right ends of the horizontal frame 20. The upper part is mounted so that the vertical and horizontal slide positions can be adjusted via mounting brackets 22 and 22, and both excavated frames 21 and 21 are extended forward and downward, and excavated at the lower end of each excavated frame 21 and 21. The raising blades 23 are protruded inward, respectively.

The upper folded guide portion 3 includes a main body frame 10
At the center of the rear end, a roller post 25 extending vertically is attached via a column mounting bracket 26 so that the slide position can be adjusted up and down. At the lower end of the roller post 25, it is extended in the left-right direction to be wider than the ridge U. The formed guide roller 27 is rotatably suspended by a roller support shaft 29 whose axis is oriented in the left-right direction via a roller support bracket.

As shown in FIG. 6, the scraping roller portion 4 has a pair of left and right roller support walls 30, 30 erected on the support frame 12, and is provided below the left roller support wall 30 in the left-right direction. The drive roller 31 is supported by a drive roller shaft 32 via a drive roller shaft 32, and an arm support shaft 33 is laid across the upper ends of the roller support walls 30, 30 on the left and right sides. The driven roller 35, which is rotatably fitted to the boss portion 34 and extends in the left-right direction and has the same width as the drive roller 31, is fitted to the boss portion 34 via a pair of left and right roller support arms 36, 36. The roller is supported by a roller support shaft 37 so as to freely roll.

Further, tension springs 38, 38 are provided between the left and right roller support walls 30, 30 and the left and right roller support arms 36, 36, and the driven rollers are driven by the tension springs 38, 38. 35 is pressed against the upper peripheral surface of the drive roller 31.

An overload detector 40 is mounted on the right side of the boss 34 fitted to the arm support shaft 33. The overload detector 40 has a support arm piece 40a formed in a rod shape. Department
Extending rearward and downward from 34, a film insertion ring 40b is formed at the tip of the support arm piece 40a. 41 is
It is a multi-film guide body formed in an arch shape. In this way, the guide roller of the upper folded guide portion 3
The multi-film M, which has been pulled upward in a folded manner along 27, is bundled and inserted into the film insertion ring 40b, and is also interposed between the driven roller 35 and the drive roller 31, which are vertically opposed. Instead, by driving the driving roller 31, the multi-film M can be scraped.

At this time, when an overload is applied to the multi-film M, the support arm piece 40a is rotated downward through the film insertion ring 40b, and is moved through the boss portion 34 supporting the support arm piece 40a. Driven roller 35 is a tension spring
The multi-film M is stopped by being lifted upward against the elastic urging force of 38 and separated from the drive roller 31.

As a result, the problem that the multi-film M is cut from the middle can be prevented.

When the overload is no longer applied, the support arm piece 40a is rotated upward by the elastic biasing force of the tension spring 38 to return to its original position, and the driven roller
35 also presses against the upper peripheral surface of the drive roller 31 to make both rollers 35, 3
Due to 1, the operation of squeezing the multi-film M in the pressed state is restarted.

Here, in order to ensure the operation of scraping the multi-film M, uneven teeth 31a, 35a are formed on the surfaces of both rollers 31, 35. The rotation of the driven roller 31 in a state of being pressed against it may generate noise, and the surface of the driven roller 35 may be formed on the peripheral surface without the teeth 35a if necessary.

The rollers 31 and 35 are covered with a cover body 45 so as to be openable and closable. The cover body 45 includes left and right side walls 46 and 46 having upper ends formed in an upwardly convex arc shape. It is formed from an arched ceiling wall and a rear wall 47 which are provided between the edges of both side walls 46, 46.

Then, cover support shafts 48, 49 project from left and right outer sides of the front lower portions of the pair of left and right roller support walls 30, 30, respectively, and the cover support shafts 48, 49 have cylindrical boss portions 50, 51, respectively. Are rotatably fitted, and the lower front portions of the left and right side walls 46, 46 of the cover body 45 are attached to the boss portions 50, 51. 52 is a handle for opening and closing, 53 is a closing lock piece, 54 is a long hole for avoiding arm piece interference,
Reference numeral 55 denotes a slot for avoiding shaft case interference.

In this way, the cover body 45 grips the opening / closing handle 52 and pivots forward around the cover support shafts 48, 49, thereby opening the rear of the rollers 31, 35. ,
An operation of first bundling and sandwiching the leading end of the multi-film M between the rollers 31, 35 and an operation such as maintenance of the rollers 31, 35 can be easily performed.

The housing portion 5 has a housing case 60 formed in the shape of a rectangular box having an upper surface opening and is mounted between the connection frame 11 and the support frame 12 via mounting brackets 61 and 62, and is provided on the right side. Is
An opening / closing door 63 forming a part of the right side wall is attached via a hinge 64 so as to be freely opened and closed.

As described above, the multi-film M squeezed by the squeezing roller unit 4 is stored in the storage case 60 in a folded state, and the open / close door 63 is opened to thereby open the folded multi-film M. Can be taken out from the side.

The power transmission unit 6 includes a gear case 70 provided at a front portion of the main body frame 10, a shaft case 71 extending leftward from the gear case 70, and a left end portion of the coaxial case 71 and the drive roller shaft 32. A transmission case 73 is interposed between the roller shaft extension portion case 42 that covers the roller shaft extension portion 32a formed to extend further to the left.

The gear case 70 moves the input shaft 74 forward.
A PTO shaft 75 protruding rearward from the rear end of the tractor B at the tip of the input shaft 74 can be interlocked and connected via a transmission shaft 76, while an input gear is connected to the base end of the input shaft 74. 77 is installed.

An output shaft 78 extending in the left-right direction is laid across the gear case 70 and the shaft case 71, and an output gear 79 is mounted on the right side of the output shaft 78. The output gear 79 is connected to the input gear 77. Are engaged.

The transmission case 73 has an intermediate shaft 80 attached at an intermediate portion thereof, and a first intermediate pulley 81 and a second intermediate pulley
82 and the first intermediate pulley 81 and the output shaft
A first transmission belt 84 is wound around an output pulley 83 attached to the left end of the second shaft 78, and a second transmission belt 84 is provided between a second intermediate pulley 82 and a driving pulley 85 attached to the roller shaft extension 32a. The belt 86 is wound.

The first transmission belt 84 presses the first tension roller 87 via the first tension arm 88, while the second transmission belt 86 applies a clutch portion 90 described later.
Is pressed through a tension arm 92.

The clutch portion 90 is provided on the inner wall 94 of the transmission case 73.
The upper end of the tension arm 92 is pivotally supported via a pivot 93.The pivot 93 projects outward from the inner wall 94 of the transmission case 73, and the projecting end of the linear link 95 Attach the base end, connect the base end of the arcuate link 96 to the end of the straight link 95, connect the lower end of the link support rod 97 extending vertically to the end of the arcuate link 96, and support the link. Attach the middle part of the rod 97 to the outer end of the left cover support shaft 48.
Has been supported through 98. 99 is an elastic support spring,
100 is the boss.

When the cover body 45 is opened in this manner, the cover support shaft 48 → stay 98 → link support rod 97 → arc-shaped link 96 → straight link 95 → pivot shaft 93 → tension arm 92 → tension roller 91 The second transmission belt 86 is relaxed away from the second transmission belt 86, and as a result,
The function of transmitting power to the drive roller 31 is disabled (clutch disengaged state).

[0043]

According to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, a squeeze roller unit for squeezing the multi-film is provided in the apparatus main body, and the squeeze roller unit is provided when an overload is applied to the squeezed multi-film. Since the scraping operation is configured to be stopped, it is possible to prevent a problem that the multi-film is cut from the middle.

When the overload does not act on the multi-film, the scraping roller section restarts the scraping operation and can continue the multi-film removing operation.
Work efficiency can be improved.

Further, a power transmission unit for receiving power from the towing vehicle and transmitting the power to the squeezing roller unit, and a cover body for covering the squeezing roller unit in an openable and closable manner are provided in the main body of the apparatus. In addition to providing a clutch part, the clutch disengagement operation of the clutch part and the opening operation of the cover body are linked, so the work to first bundle and pinch the tip of the multi-film into the scraping roller part When performing such operations or performing inspection work on the scraping roller section, the scraping roller section stops operating in conjunction with the opening operation of the cover body that is inevitably opened. Good safety can be ensured.

According to the second aspect of the present invention, the squeezing roller portion is provided with a driving roller, a driven roller which is disposed so as to be able to freely contact and separate from the driving roller, and is interlocked and connected to the driven roller. A driven roller is elastically urged to press against the driving roller, and is interlocked with an overload detecting operation of the overloaded detector. And the drive roller is separated from the drive roller, so that the squeezing operation and the stopping of the squeezing operation can be performed with a simple structure and surely. Can be improved.

[Brief description of the drawings]

FIG. 1 is a side view showing a use state of a multi-film removing apparatus according to the present invention.

FIG. 2 is a rear view of the multi-film removing apparatus.

FIG. 3 is a partially cutaway plan view of the multi-film removing apparatus.

FIG. 4 is a sectional side view of the multi-film removing apparatus.

FIG. 5 is a sectional rear view of the multi-film removing apparatus.

FIG. 6 is an enlarged side view of a clutch unit.

[Explanation of symbols]

 Reference Signs List A Multi-film removing device B Tractor C Lifting mechanism 1 Apparatus main body 2 Excavation section 3 Upper folded guide section 4 Scraping roller section 5 Housing section 6 Power transmission section

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01G 13/00 302

Claims (2)

(57) [Claims] 1. A multi-film removing apparatus for removing a multi-film stretched on a surface of a ridge in a field while being pulled by a towing vehicle, wherein a scraping roller unit for scraping the multi-film is provided in a main body of the apparatus. A multi-film removing device configured to stop the squeezing operation when the squeezing roller section is overloaded on the squeezed multi-film.
, The power is taken from the towing vehicle into the device
A power transmission unit for transmitting power to the
Provide a cover that can be opened and closed freely, and close the power transmission
A latch is provided and the clutch is disengaged.
A multi-film removing apparatus, wherein an operation and an opening operation of a cover body are linked . 2. A squeezing roller section is provided with a driving roller, a driven roller which is disposed so as to be able to contact and separate from the driving roller, and is operatively connected to the driven roller, and acts on a multi-film to be squeezed. An overload detector that detects an overload that occurs, the driven roller being elastically urged to press against the drive roller, and separated from the drive roller in conjunction with the overload detection operation of the overload detector. The multi-film removing apparatus according to claim 1, wherein the apparatus is configured.