JP2003340775A - Method and apparatus for dismantling tatami mat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tatami dismantling method for efficiently dismantling an old tatami mat, and to provide a tatami dismantling apparatus and a slide blade that are used in the method. <P>SOLUTION: A slide blade 20 having a long, curved blade is provided by crossing on a conveyance path where a conveyance band 4 is formed. The slide blade 20 is reciprocated in the longitudinal direction, and at the same time the old tatami mat 101 being placed in the conveyance band 4 is moved in one direction toward the slide blade 20. By the slide blade 20, the old tatami mat 101 is cut from a circumferential surface side for cutting into front and rear sides. A tatami mat floor having a laminated structure can be easily dismantled by one-time cutting work. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a tatami dismantling method and a tatami dismantling apparatus.

[0002]

2. Description of the Related Art Conventionally, when disposing unnecessary tatami mats, that is, old tatami mats, in most cases, they are incinerated as industrial waste in the same manner as the waste material of the building from which they were dismantled. The tatami mat 101 is normally folded around a tatami mat 103 attached to the tatami mat 102 as shown in FIG.
For the old tatami mats that are sewn on the periphery of the mat, the tatami mat is made of rice straw on the tatami mat 102 (rice straw mat)
Are often used.

However, this kind of tatami floor 102 has a thickness of about 40 cm, which is obtained by alternately stacking dried straws vertically and horizontally to form a layer having a thickness of about 40 cm. The entire structure is sewn by 104, and the pitch of the sewing thread 104 is as narrow as about 3 cm. In other words, the structure is such that it is difficult to completely burn up to the inside. For this reason, when incinerating an old tatami mat, it is cut in advance in parallel with the width (short side) and finely divided in the length direction (direction of arrow A in FIG. 6). .

On the other hand, in recent years, coupled with the situation that the number of rice farms is decreasing, it is becoming possible to dismantle old tatami mats and recycle the straws forming the tatami mats as feed for cattle in various regions. It is carried out by the company, and it is attracting attention as an effective disposal method of old tatami mats from the viewpoint of environmental consideration.

[0005]

However, when incinerating old tatami mats as described above, it is necessary to cut the tatami mats a plurality of times, and even if this is done by a machine, the work efficiency is high. There was a problem that was bad.

On the other hand, when recycling old tatami mats as feed, it is necessary to remove the sewing thread 104 for sewing the tatami floor 102 so that the stacked rice straws can be loosened as they are. The sewing thread 104 cannot be mechanically pulled out at once. Therefore, tatami floor 1
To dismantle 02, for example, a very complicated work such as cutting the exposed portions (a large number of places) of the sewing thread exposed at a constant interval on the surface of the tatami floor 102 with a knife is indispensable. There was a problem that it took a lot of time and effort.

The present invention has been made in view of such conventional problems, and provides a tatami dismantling method capable of efficiently dismantling an old tatami mat, and a tatami dismantling apparatus and a slide blade used therefor. To aim.

[0008]

In order to solve the above problems, in the invention of claim 1, when the tatami mat is disassembled, the tatami mat is cut from the peripheral surface side so as to be divided into a front surface side and a back surface side. I did it.

According to such a method, in the process of cutting the tatami mat from the peripheral surface side, the sewing thread penetrating the tatami floor in the thickness direction at a plurality of points arranged in the longitudinal and lateral directions as seen from the surface is penetrated at each penetrating point. It can be cut into the front side and the back side. Therefore, the tatami floor having a laminated structure can be easily disassembled by one cutting operation.

According to the second aspect of the present invention, when cutting the tatami mat from the peripheral surface side, a slide blade having a long curved blade is reciprocally moved in the longitudinal direction to reciprocate the slide. This was done by moving the tatami mat relative to the blade.

According to such a method, the tatami mat can be smoothly cut without causing unnecessary resistance at the cut part of the tatami mat. Further, the whole can be surely cut into the front surface side and the back surface side.

Further, according to the invention of claim 3, it is provided in the transport mechanism for transporting the tatami in one direction and the transport path of the tatami transported by this transport mechanism, and is long in the transverse direction of the transport path. It has a curved blade that comes into contact with the peripheral surface of a tatami mat that is conveyed, and a slide blade that is reciprocally driven in the length direction.

In such a structure, the tatami mat transported in one direction by the transport mechanism is cut from the peripheral surface side so as to be divided into the front surface side and the back surface side by the slide blade that reciprocates in the length direction. The sewing thread that penetrates the tatami floor in the thickness direction at a plurality of locations is cut at each location. Therefore, the tatami floor having a laminated structure can be easily disassembled by one cutting operation. Moreover, the tatami can be smoothly cut without causing unnecessary resistance at the cut portion of the tatami. Further, the whole can be surely cut into the front surface side and the back surface side.

Further, in the invention of claim 4, the transport mechanism is provided with an endless transport belt for supporting the back surface of the tatami mat, and the locking projection protruding toward the tatami mat and sticking to the back surface of the tatami mat is provided in the transport belt. It is assumed that a plurality of are provided.

In such a construction, during the cutting operation, the sheet material forming the lowermost layer of the tatami floor can be maintained in the conveyor belt even at the portion where the cutting is completed.

Further, according to the invention of claim 5, the slide blade is used in the tatami dismantling apparatus according to claim 3 or 4.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a schematic side view showing a tatami dismantling apparatus 1 according to the present invention. The tatami dismantling device 1 is a tatami (old tatami) 1 placed on a strong metal body frame 2 in a lying state.
The transport mechanism has a structure for moving 01 in one direction (arrow B direction). The transport mechanism mainly comprises a plurality of rollers 3, 3, 3 arranged at intervals on the front side (left side in the figure) of the main body frame 2 and a transport path supporting the tatami (old tatami) 101 together with them. It is constituted by an endless conveyor belt 4 to be formed.

The plurality of rollers 3, 3, 3 are rotatably supported on a supply table 5 attached to the body frame 2. The conveyor belt 4 has substantially the same height as the plurality of rollers 3, 3, 3 and, on the front side and the rear side of the main body frame 2, both ends of a rotating shaft extending in the width direction of the conveyor path. A first tension sprocket 6 and a second tension sprocket 7, which are provided as a pair,
It is hung around a relay sprocket 8 located below the first tension sprocket 6 (front side).

A drive sprocket 9 provided on a power shaft in which the rotation of a motor (not shown) is decelerated, and the rotation of the drive sprocket 9 are transmitted to a lower portion on the front side of the main body frame 2 through a sprocket chain 10. A second drive sprocket 11 is arranged. And the second
The rotation of the driving sprocket 11 is transmitted to the rotary shaft provided with the relay sprocket 8 via the sprocket chain 12. As a result, when the tatami dismantling apparatus 1 is in operation, the area of the conveyor belt 4 forming the above-mentioned conveyor path moves endlessly rearward (in the direction of arrow B). The motor, which is the power source, may be a small engine.

Further, as shown in FIG.
A large number of long support plates 15 extending in the width direction of the transport path are connected at regular intervals, and the first and second pulling sprockets 6 described above are provided at both ends of each support plate 15. , 7 and the relay sprocket 8 are meshed with each other. Each of the support plates 15 constituting the conveyor belt 4 is provided with tapping screws 16 which are screwed in from the inside and project outward, arranged at a plurality of positions side by side in the width direction of the conveyor belt 4. The tapping screw 16 has a sharp tip, and each tip is pierced into the back surface of the tatami 101 placed on the transport path. That is, in the present embodiment, each tapping screw 16 functions as the locking protrusion of the present invention.

Further, the plurality of tapping screws 16 need to be arranged so as to always exist in the entire area of the conveying path formed by the conveying belt 4.
It is not necessary to provide it on all the support plates 15 constituting the above, and for example, one or a plurality of support plates 15 connected side by side may be provided. Further, the one support plate 15 and the other support plate 15 adjacent to each other may be arranged in a staggered manner so as to be staggered. It should be noted that any member other than the tapping screw 16 may be provided on the support plate 15 as long as it can pierce the back surface of the tatami 101.

On the other hand, the main body frame 2 is provided with a slide blade 20 for cutting the tatami 101, which is located in the middle of the conveying path formed by the conveyor belt 4, and in front of this, a slide blade 20 for cutting the tatami 101. A pressing roller 17 is installed to prevent lifting. The slide blade 20 is
As shown in FIG. 3, it is elongated and has an arched shape. At both ends of the slide blade 20, mounting portions 21 and 21 having holes 21a for bolting are provided, and the blade 22 is formed at one curved edge of the region sandwiched by the mounting portions 21 and 21. ing. In the present embodiment, the total length L1 of the slide blade 20 is 1200 mm, the blade crossover L
2 is 1100 mm, which is set longer than the width of a normal tatami mat.

As shown in FIG. 4, on the main body frame 2, sliders 25, which are located above both sides of the transport path formed by the transport belt 4 and are movable only in the width direction of the transport path,
25 are installed in pairs. Then, the slider 25, 25 is attached to the mounting portion 21,
21 is bolted to the slide blade 2
0 is slidably supported in a direction (length direction, arrow C direction) traversing the transport path. The sliders 25, 25 have a structure capable of adjusting the mounting height of the slide blade 20.
The height of the curved edge is adjusted so that it is located in the middle of the thickness of the tatami mat 101 placed on the transport path.

On the other hand, in the vicinity of one side of the sliders 25, 25 supporting the slide blade 20, a rotary shaft of a motor 26 (see FIG. 1) arranged on the side portion of the conveying path is attached, and the slider 26 is horizontally moved. Drive wheel 27 that rotates in
Is omitted). The outer peripheral position of the drive wheel 27 and one side of the slider 25 are
Together with them, they are connected via a connecting rod 29 having both ends that form ball joints 28, 28. That is, when the tatami dismantling apparatus 1 is in operation, the drive wheel 2
The rotation of 7 is converted into the reciprocating motion of the slider 25 via the connecting rod 29, so that the slide blade 20 is reciprocally driven in the longitudinal direction. In addition,
The stroke of the slide blade 20 during operation is about 150.
mm. The slide blade 20 may be driven by a mechanism other than the above.

The tatami dismantling apparatus 1 having the above structure
In the above, the apparatus is started and the conveyor belt 4 and the slide blade 20
Drive the tatami mat 101 from the supply table 5 side.
When is placed on the transport path, the tatami 101 is gradually moved toward the slide blade 20 by being caught by the tapping screw 16 of the transport band 4. And the moving tatami 1
01 is gradually cut from the peripheral surface side of the front end in the moving direction by the slide blade 20 so as to be divided into the front surface side and the back surface side.

Along with this, the tatami mat 101 is separated from the tatami mat floor 102 in order from the front end side in the moving direction of the tatami mat. At the same time, the sewing thread 104 (see FIG. 6) penetrating the tatami floor 102 in the thickness direction at a plurality of points arranged in the longitudinal and lateral directions is
The slide blade 20 sequentially cuts the respective through-holes, so that the rice straw of the tatami floor 102 that has been compacted by the suture thread 104 until then is automatically unraveled in the original state. Therefore, the tatami floor 102 having a laminated structure can be easily disassembled by one cutting operation. Therefore, it is possible to efficiently perform the dismantling work required before the incineration of the old tatami mat and the dismantling work when recycling the old tatami mat as feed. Also, tatami 101
Since it is cut so as to be divided into the front surface side and the back surface side, almost no chips (straw chips) are generated at the time of cutting, and the dismantling work can be performed in a favorable environment.

Further, since the blade 22 of the slide blade 20 described above is curved as described above, the tatami 101 (tatami floor 102) can be cut extremely smoothly, which also causes generation of chips. Can be prevented. Further, since the cutting efficiency is good, the distance over which the tatami 101 can be cut and advanced while the slide blade 20 slides to one side can be increased without increasing the stroke of the slide blade 20. Therefore, the moving speed of the tatami 101 can be increased accordingly, and the time required for cutting (disassembling) one tatami 101 can be shortened (about 1 minute).

Moreover, since the blade 22 of the slide blade 20 is curved, the planar shape of the cut inside the tatami 101 (tatami floor 102) becomes a curved shape. That is, FIG. 5 is a diagram showing the positional relationship (a) between the tatami 101 and the blade 22 immediately after the start of cutting, and the positional relationship (b) between the tatami 101 and the blade 22 immediately before the completion of cutting, which is a cut inside the tatami 101. Is a reciprocating blade 2
The curved shape is determined by the swing width of the second curved edge 22a, that is, the stroke amount S of the slide blade 20 (however, a linear shape is provided in the central portion on the cutting-advancing side and equal to the stroke amount S). Therefore, in the middle of cutting, the tatami 101 is cut by the slide blade 20 first in the widthwise central portion, and then cut in both widthwise side portions. Therefore, as shown in FIG. 5B, the tatami mat 101, which is gradually divided from one side to the front side and the back side,
Finally, only the corner portions 101a, 101a on both sides in the width direction are slightly connected.

Therefore, immediately before the completion of cutting, even if the self-weight of the tatami 101 is greatly reduced by unraveling the side which was previously divided into the front surface side and the back surface side, the tatami 101 and the tatami mat 101 are still in contact with the slide blade 20. Tatami mat 10 due to resistance
1 (the uncut remaining portion) does not escape in the direction opposite to the conveying direction. Therefore, it is not necessary to separately provide a mechanism for preventing it, and the tatami mat 10 has a simple structure.
It is possible to surely cut (divide) 1 into the front side and the back side until the end. Moreover, even if the tatami mats 101 are processed one by one, this is possible.

In this embodiment, the slide blade 20 has a curved shape as a whole, but if the blade 22 has a curved shape, it may have a curved shape. I do not care. Further, the curvature of the blade 22 can be arbitrarily set as long as the above-mentioned effect can be obtained. However, the smaller the curvature, the smaller the stroke amount of the slide blade 20 and the more the outer dimensions of the tatami dismantling apparatus 1 are. Can be made smaller.

On the other hand, during the above-mentioned cutting, the plurality of tapping screws 16 provided on the conveyor belt 4 are attached to the tatami mat 101.
Since it is stuck to the back surface of the sheet, the sheet material (body) 105 that constitutes the lowermost layer of the tatami floor 102 shown in FIG.
However, even in the area after passing through the slide blade 20, the state of being held by the conveyor belt 4 is maintained, and from the portion of the second tension sprocket 7 (see FIG. 1) that has passed the turnaround point of the conveyor belt 4. The conveyor belt 4 is sequentially removed by its own weight.

Therefore, at the time when the sheet material 105 is bent downward together with the conveyor belt 4 at the folding point,
The rice straw on the back surface side of the tatami 101, which has been laminated in contact with the sheet material 105, is automatically separated from the sheet material 105. In addition, at that time, the sewing thread left on the back surface side of the cut tatami 101 is left on the sheet material 105 side. Therefore, when recycling old tatami mats as feed, it is not necessary to manually separate the sheet material and rice straw after cutting, or to remove the sewing thread remaining on the back side of tatami 101 from rice straw. Also, the tatami 101 can be disassembled efficiently.

[0034]

As described above, according to the first aspect of the invention, the tatami floor having the laminated structure can be easily disassembled by one cutting operation. Therefore, it becomes possible to dismantle the old tatami mat efficiently.

According to the second aspect of the present invention, the tatami can be smoothly cut without causing unnecessary resistance at the tatami-cutting portion, and the entire tatami can be surely cut on the front surface side and the back surface side. I was able to disconnect. Therefore,
The amount of dust that accompanies the cutting work is extremely reduced, and a good working environment can be easily secured.

According to the third aspect of the present invention, the tatami floor having the laminated structure can be easily disassembled by one cutting operation, and the tatami mat is cut without causing unnecessary resistance. Can be smoothly cut, and the whole can be surely cut into the front surface side and the back surface side. Therefore, the old tatami mat can be efficiently disassembled, and the amount of dust generated during the cutting operation is extremely small, so that a good working environment can be easily ensured.

Further, in the invention of claim 4, during the cutting operation, the sheet material constituting the lowermost layer of the tatami floor can be maintained in the conveying band even in the portion where the cutting is completed. I did it. Therefore, it is not necessary to manually separate the sheet material and the rice straw, and it is possible to improve the work efficiency during disassembly.

According to the slide blade of claim 5,
By using it, the inventions of claims 2 and 3 can be implemented.

[Brief description of drawings]

FIG. 1 is a schematic side view of a tatami disassembling apparatus showing an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a main part of the tatami dismantling device taken along the conveying direction of the tatami.

FIG. 3A is a plan view of a slide blade, and FIG.
It is an AA sectional view of (a).

FIG. 4 is a schematic plan view showing a main part of a drive mechanism of a slide blade.

FIG. 5 is a schematic plan view showing the relationship between the tatami mat and the blade during cutting.

FIG. 6 is a perspective view showing the structure of a tatami mat.

[Explanation of symbols]

1 tatami dismantling device 4 conveyor belts 15 Support plate 16 tapping screw 20 slide blades 22 blades 25 slider 27 drive wheel 28 ball joint 29 connecting rod 101 tatami 102 tatami floor

Claims (5)

[Claims] 1. A method of disassembling a tatami, which comprises cutting the tatami from a peripheral surface side so as to divide the tatami into a front surface side and a back surface side. 2. When cutting the tatami mat from the peripheral surface side, the tatami mat is relatively moved toward the reciprocating slide blade while reciprocally moving a slide blade having a long curved blade in the length direction. The method for disassembling a tatami mat according to claim 1, wherein the method is performed by: 3. A transport mechanism for transporting the tatami in one direction, and a transport path of the tatami transported by the transport mechanism,
It is characterized in that it has a curved blade that is long in the transverse direction of the transport path and abuts on the peripheral surface of the tatami mat being transported, and a slide blade that is reciprocally driven in the longitudinal direction. Tatami dismantling device. 4. The transport mechanism includes an endless transport band that supports the back surface of the tatami mat, and the transport band is provided with a plurality of locking projections that project toward the tatami mat and stick to the back surface of the tatami mat. The tatami dismantling device according to claim 3. 5. A slide blade used in the tatami disassembling apparatus according to claim 3 or 4.