JP2006193991A - Method and device for breaking down tatami mat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and a device for breaking down a tatami mat being capable of efficiently breaking down the tatami mat and being capable of preventing the remaining of a sewing thread to a tatami-mat base material, molding the surface of the tatami-mat base material in a flat surface and being capable of using the tatami-mat base material as a recycled tatami mat as it is. <P>SOLUTION: In the device for breaking down the tatami mat, a tatami facing, the tatami-mat base materials made of boards 7 and foams 8 and rear sheets 4 are mounted successively in a laminated shape from the surface side, the tatami-mat base materials and the rear sheets 4 are connected integrally by the sewing threads 5 and the outer edge section of the tatami-mat facing is fixed to the tatami-mat base materials by an edge cloth. Such the device for breaking down the tatami mat has a cutting means with a cutting edge 30 cutting the whole surfaces on the surface sides of the boards 7 in a primary breaking-down article 3A, in which the edge cloth and the tatami-mat facing are removed, by a thickness capable of cutting off the sewing threads 5 arranged on the surface sides of at least the tatami-mat base materials and a feeding means with a feed roller 28 feeding the primary breaking-down article 3A to the cutting means. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

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

  In recent years, tatami mats made of synthetic resin materials can be manufactured at low cost in place of tatami mats, which are mainly made of cocoons, and they have the advantages of being lightweight, easy to carry and excellent in heat retention. Widespread because of having. However, this type of tatami mat has problems such as the generation of toxic gas if it is incinerated as it is, so it is dismantled by a tatami dismantling contractor and reused for each material or incinerated. Yes.

  Normally, tatami dismantling contractors dismantle tatami by hand, but on the relationship that foams and insulation boards (hereinafter simply referred to as “boards”) arranged in a stack are joined together with sewing threads. There was a problem that it took a lot of time and labor to cut the sewing thread.

  Therefore, in order to automate the cutting operation of the sewing thread, the end of the sewing thread on the sewing end side is set in a free state, and a separation plate is inserted between the board at the end of the sewing thread and the core material made of foam or the like. The separation plate pushes the board and the core material apart so that the sewing thread remains on the board side, and the sheet is peeled off from the board, leaving the sewing thread remaining on the board side on the sheet side. A disassembly method (see, for example, Patent Document 1) for disassembling a tatami to a sheet and a warp arranged along the longitudinal direction on the back side of the tatami using a blade, and a sewing thread remaining on the tatami on the front side A disassembly method (see, for example, Patent Document 2) configured to be removed by hooking with a comb-like hook is proposed.

JP 2004-105846 A JP 2001-159225 A

  However, in the dismantling method described in Patent Document 1, the height of the separation plate is adjusted according to the thickness of the board and the core material because the separation plate is inserted between the board and the core material and the sewing thread is left on the board side. If the tatami is deformed due to the load of furniture, etc. placed on the tatami mat, the separation plate cannot be inserted smoothly between the board and the core material, and the sewing thread is cut. There is a problem that the processing speed cannot be sufficiently increased because it is necessary to insert the separation plate between the board and the core material and gradually increase the distance between the two.

  Further, in the dismantling method described in Patent Document 2, warp yarns extending in the longitudinal direction of the tatami are cut between adjacent weft yarns, so that a large number of rotary blades are required, which increases the manufacturing cost of the device and complicates the device configuration. When disassembling different types of tatami mats, it is necessary to adjust the interval between adjacent rotary blades according to the warp yarn interval, and the rotary blades on the core material such as foam placed on the back side of the tatami mat As a result, the core material such as foam cannot be reused as a core material for recycled tatami mats.

  Furthermore, in the foam or board disassembled by the disassembly method described in Patent Documents 1 and 2, a depression is formed in the surface portion around the sewing hole through which the sewing thread has been inserted. It could not be used and eventually had to be incinerated or recycled into resin pellets for recycling.

  The object of the present invention is to enable efficient dismantling of tatami mats and to prevent the sewing thread from remaining on the tatami base material, and to form the surface of the tatami base material into a flat surface and use it as it is for recycled tatami mats. It is to provide a tatami mat dismantling method and dismantling apparatus capable of performing the above.

  The method for disassembling a tatami mat according to the present invention includes providing a tatami mat, a tatami mat base material, and a back sheet in a laminated form in order from the front side, and integrally joining the tatami mat base material and the back sheet with a sewing thread. Is a method of disassembling a tatami mat fixed to a tatami mat base material with an edge cloth, and cuts out the sewing thread disposed at least on the surface side of the tatami base material on the entire surface side of the primary dismantled product obtained by removing the edge cloth. Cutting process for cutting as much as possible thickness and stripping process for removing the sewing thread remaining in the primary dismantled product together with the back sheet by peeling the back sheet from the primary dismantled product obtained by cutting the front side of the tatami base material It is equipped with.

  In this disassembling method, the entire surface on the front surface side of the primary dismantled product is cut by a certain thickness in the cutting process, so that the sewing thread that integrally bonds the tatami base material and the back sheet is cut, and the back surface is removed in the yarn removal process. By peeling off the sheet, the sewing thread remaining in the primary dismantled product together with the back surface sheet can be removed, and the primary dismantled product can be disassembled into the tatami base material and the back surface sheet. As the tatami mat base material, for example, one having an arbitrary configuration such as a laminate of a board and a foam from the tatami surface side can be adopted, and in this disassembly method, the sewing thread remaining in the primary dismantled product is removed, thereby removing the tatami base. The material can be disassembled into a member such as a board or foam constituting the material.

  Here, as a pre-process of the cutting process, in the cutting process, providing a cutting process of cutting and removing the outer edge portion of the tatami including the edge cloth to obtain a primary dismantled product obtained by removing the edge cloth from the tatami. Cutting the primary dismantled product from which the rim cloth and tatami surface have been removed, and in the cutting process, while holding the primary dismantled product from the upper side with the surface side facing downward from the upper side, by a cutting blade disposed on the lower side of the primary dismantled product Cutting the primary demolition product is a preferred embodiment.

  The tatami mat dismantling apparatus according to the present invention is provided with a tatami mat, a tatami mat base material, and a back sheet in a laminated form in order from the front surface side, and the tatami mat base material and the back sheet are integrally joined by a sewing thread. Is a tatami mat dismantling device fixed to a tatami base material with a rim cloth, and the entire surface on the surface side of the primary dismantling product obtained by removing the rim cloth is cut off at least on the sewing thread disposed on the surface side of the tatami base material A cutting means for cutting as much as possible and a feeding means for feeding the primary dismantled product to the cutting means.

  This dismantling apparatus can cut the sewing thread that integrally bonds the tatami mat base material and the back sheet by cutting the entire surface on the front surface side of the primary dismantling product by a predetermined thickness by the cutting means. For this reason, it is possible to remove the sewing thread remaining on the primary dismantled product together with the back sheet by peeling the back sheet from the primary dismantled product obtained by cutting the front side of the tatami base material. It can be easily disassembled into a base material and a back sheet. As the tatami mat base material, for example, one having an arbitrary configuration such as a laminate of a board and a foam from the tatami surface side can be adopted.In this dismantling apparatus, the sewing thread remaining in the primary dismantled product is removed, thereby removing the tatami base. The material can be disassembled into a member such as a board or foam constituting the material.

  Here, the backside sheet is peeled off from the primary dismantled product obtained by cutting the front surface side, and a thread removing means for removing the sewing thread remaining in the primary dismantled product together with the backside sheet is provided. It has a cutting blade provided on the lower side of the primary dismantled product to be fed, and pressure receiving means for receiving the cutting reaction force of the primary dismantled product by the cutting blade from the upper side, and the surface of the feeding means is directed downward. The primary dismantled product is fed to the cutting means in a state, and the primary dismantled product is used by cutting and removing the outer edge portion of the tatami mat including the rim fabric to remove the rim fabric and removing the tatami surface, Is a preferred embodiment.

  According to the dismantling method and dismantling apparatus of the tatami mat according to the present invention, the primary dismantling product can be disassembled into the tatami base material and the back sheet, so that the members such as boards and foams constituting the primary dismantling product are separately collected for each material. Thus, it can be reused or discarded, and resources can be used effectively. In addition, the primary dismantled product can be disassembled by cutting the entire front side of the primary dismantled product and peeling the back sheet together with the sewing thread, so that the tatami can be disassembled cleanly and efficiently without leaving the sewing thread remaining. It becomes possible. Furthermore, since the cutting blades are not cut into the tatami base material by a rotating blade as in the prior art, it is possible to prevent the strength of the tatami base material from being lowered, and when the sewing thread is cut off, the tatami base material is near the seam. Since the formed depression can also be cut flat, the disassembled tatami base material can be reused as it is as a recycled tatami mat base material. Also, by cutting the entire surface on the front side of the primary dismantled product by a certain thickness, the sewing thread that integrally bonds the tatami mat base material and the back sheet can be cut, so that it is exposed to the front side as in the past. The tatami mats having different stitch pitches can be dismantled continuously and efficiently while omitting the adjustment work of changing the position of the rotary blades in accordance with the sewing thread being used. Furthermore, since a large number of rotary blades are not required, the structure of the dismantling device is simplified and the manufacturing cost can be reduced.

  As a pre-process of the cutting step in the dismantling method, a cutting step of cutting and removing the outer edge portion of the tatami including the edge cloth and removing the edge cloth from the tatami is obtained, It is preferable to cut and remove the edge fabric together with the outer edge portion because the edge fabric can be efficiently removed. In other words, the edge fabric can be removed by cutting the sewing thread using a rotary blade or the like, but it is firmly fixed to the tatami base material by the sewing thread. It is preferable to remove the edge fabric together with the outer edge portion of the substrate. In this case, the size of the tatami mat is slightly smaller, but the sewing thread for fixing the tatami mat to the outer edge of the tatami mat is also removed, so it is possible to obtain a primary dismantled product with the tatami mat removed. Therefore, it is preferable because the amount of dust during cutting of the primary dismantled product can be reduced by the amount corresponding to the tatami mat.

  Further, in the cutting step in the dismantling method, it is preferable to cut the primary dismantled product from which the margin cloth and the tatami mat have been removed since dust generation can be reduced by the amount corresponding to the tatami mat. In other words, the tatami surface can be cut and removed together with the tatami mat base material, but a large amount of dust is generated. Therefore, it is preferable to remove the tatami surface together with the edge cloth in order to reduce the generation of dust in the cutting process.

  In the cutting step in the dismantling method, when the primary dismantling product is cut by the cutting blade disposed on the lower side of the primary dismantling product while pressing the primary dismantling product with the surface side facing downward from the upper side, the cutting blade is moved up and down. Therefore, the primary dismantled product can be cut by the required thickness, and various old tatami mats can be cut without complicating the structure of the dismantling device. In other words, in the old tatami, a depression may be formed on the surface due to the load of furniture, etc., and when disassembling such an old tatami, cutting according to the surface shape of the primary dismantled product of the old tatami It is necessary to adjust the relative positional relationship between the blade and the primary dismantled product. At that time, it is also possible to adjust the relative positional relationship between the cutting blade and the primary dismantling product by moving the cutting blade up and down, but it is necessary to move the cutting blade drive system up and down as well. The structure of is complicated. In this invention, since the primary disassembly product can be moved up and down to adjust the relative positional relationship between the cutting blade and the primary disassembly product, the primary disassembly product can be cut by the required thickness without moving the cutting blade up and down. It becomes possible, and the structure of the dismantling apparatus can be simplified.

  When the disassembling apparatus is provided with a thread removing means for removing the sewing thread remaining in the primary dismantled product together with the back surface sheet by peeling the back sheet from the primary disassembled product obtained by cutting the front side, cutting and removing the primary disassembled product Can be performed continuously and efficiently.

  As the cutting means in the dismantling apparatus, a cutting blade provided on the lower side of the primary dismantling product fed by the feeding means and a pressure receiving means for receiving the cutting reaction force of the primary dismantling product by the cutting blade from above. When the feed means is configured to feed the primary dismantled product to the cutting means with the surface side facing downward, the primary dismantled product is cut by the required thickness without moving the cutting blade up and down. Therefore, it is possible to efficiently cut even an old tatami mat with unevenness without complicating the structure of the dismantling apparatus.

  In the dismantling apparatus, as a primary dismantling product, if the outer edge portion of the tatami mat including the margin cloth is cut and removed to remove the margin cloth, and the tatami surface is removed, the size of the tatami mat substrate is slightly reduced. The edge fabric can be easily removed, and the sewing thread for fixing the tatami mat to the tatami mat can be removed at the same time, making it possible to cut the primary dismantled product with the tatami mat removed, and generating dust during cutting. Can be reduced.

Embodiments of the present invention will be described below with reference to the drawings.
First, the structure of the tatami 1 as an object to be disassembled will be described. As shown in FIGS. 1 and 2, the tatami 1 is provided with a tatami surface 2, a tatami base 3, and a back sheet 4 in order from the front side. The tatami base material 3 and the back sheet 4 are integrally coupled by the sewing thread 5, and the edge cloth 6 sandwiches the side edges of the tatami surface 2 between the two parallel side edges or the four side edges of the tatami base material 3. Is a well-known structure in which is fixed with a sewing thread (not shown).

  The back sheet 4 is made of a known sheet material made of a synthetic resin material or the like, and the tatami base 3 has a two-layer structure in which a board 7 and a foam 8 are arranged in a laminated form from the tatami surface 2 side. However, as the tatami base material 3, it is possible to disassemble an arbitrary laminated structure. It is also possible to dismantle the tatami mat, such as a stack of heels on the surface side of the tatami base material 3.

  Next, the dismantling apparatus 10 for disassembling the tatami 1 will be described. In this dismantling apparatus 10, the primary dismantling product 3 </ b> A from which the edge cloth 6 and the tatami surface 2 have been removed in advance is further disassembled into a board 7, a foam 8 and a back sheet 4. In the present embodiment, the feeding direction (illustrated by an arrow A in FIG. 3) of the primary dismantling product 3A with respect to the disassembling apparatus 10 is defined as the left-right direction.

  As shown in FIGS. 3 to 8, the disassembling apparatus 10 has a thickness capable of excising the sewing thread 5 disposed on at least the surface side of the tatami base material 3 on the entire surface side (tatami surface 2 side) of the primary disassembly product 3 </ b> A. The cutting means 11 for cutting only the length, the feeding means 12 for feeding the primary dismantled product 3A to the cutting means 11, the dust collecting means 13 for collecting dust generated at the time of cutting, and the primary by cutting the surface side. The backside sheet 4 is peeled off from the disassembled product 3A, and the thread removing means 14 is provided to remove the sewing thread 5 remaining in the primary disassembled product 3A together with the backside sheet 4.

  The feeding means 12 will be described. A pair of left and right mounting tables 20 and 21 for setting the primary dismantled product 3A so as to be movable in the left and right directions are provided at intervals in the left and right. A plurality of rotation support members 22 made up of rollers and spheres for rotatably supporting the primary dismantled product 3A and the dismantled product dismantled in the left-right direction are provided on the upper part.

  A dismantling device main body 23 is provided between the left and right mounting tables 20, 21, and five feed shafts 25 extending in the front-rear direction are provided above the machine base 24 of the disassembling device main body 23. The shaft 25 is configured to rotate synchronously by an electric motor 27 via a power transmission member 26 such as a chain or a timing belt. The intermediate portion of each feed shaft 25 is engaged with the lower surface of the primary demolition product 3A to be primary. Feed rollers 28 that feed and drive the dismantled product 3A in the direction of arrow A are provided at set intervals with the upper surface set at substantially the same height level as the upper surface of the rotation support member 22. As the feeding means 12, any structure can be employed as long as the primary dismantled product 3A can be fed to the cutting means 11.

  The cutting means 11 will be described. A cutting tool 31 extending in the front-rear direction is rotatably provided on the top of the machine base 24 between the third and fourth feed shafts 25 from the left side. A pair of cutting blades 30 are attached to 43 at an angle of 180 ° in the circumferential direction, and the cutting tool 31 is rotationally driven in the machine base 24 via a power transmission member 32 such as a chain or a timing belt. The electric motor 33 is provided. The upper end portion of the rotation locus of the cutting edge of the cutting blade 30 is set at a position slightly higher than the upper surface of the feed roller 28 arranged on the left side, and the length of the cutting blade 30 is larger than the width of the primary dismantled product 3A to be disassembled. Set slightly larger. The cutting means 11 is provided with a height adjusting means (not shown) that can adjust the height position of the cutting tool 31. By adjusting the height of the cutting tool 31 with this height adjusting means, the primary dismantled product 3A. It is comprised so that the cutting thickness of can be adjusted. When the blade fixing member 43 having a shape as shown in FIG. 8 is used, after the board 7 is cut by the first cutting blade 30, the board 7 is cut by the second cutting blade 30. , The board 7 bulges downward, the cutting depth of the board 7 by the second cutting blade 30 becomes larger than the set dimension, and the cutting depth of the board 7 increases as a whole. In order to prevent this, as in the cutting tool 31A shown in FIGS. 10 and 11, instead of the blade fixing member 43, a U-cut for mounting the mounting slit 44 of the cutting blade 30 and the fixing bolt 45 of the cutting blade 30 is used. Using a blade fixing member 43A having a peripheral surface other than the portion 46 as a peripheral surface that is slightly smaller than the movement trajectory of the cutting edge of the cutting blade 30, the peripheral surface of the blade fixing member 43A regulates the downward swelling of the board 7. For example, it is preferable that the board 7 be cut with a cutting depth of 2 mm to 3 mm. However, as the cutting tool 31, it is possible to adopt an arbitrary configuration as long as it can cut only a certain thickness of the surface portion of the primary dismantled product 3 </ b> A.

  The cutting means 11 is provided with a pressure receiving means 34 that receives the cutting reaction force of the primary dismantled product 3A by the cutting blade 30. The pressure receiving means 34 will be described. A support frame 35 arranged in a rectangular parallelepiped shape is provided on the upper side of the machine base 24, and an elevating frame 37 that can be moved up and down by an elevating means 36 such as an air cylinder inside the support frame 35. A pair of left and right rotating shafts 38 extending in the front-rear direction is provided below the elevating frame 37 so as to correspond to the feeding shafts 25 on both sides of the cutting tool 31, and a feeding roller is provided in the middle of the rotating shaft 38. A pressing roller 39 is provided so as to correspond to 28. The rotating shaft 38 is rotatably supported by bearing members 40 provided at both ends thereof. The bearing member 40 is supported by the guide rod 41 so as to be movable up and down with respect to the lifting frame 37 and is mounted on the guide rod 41. When the primary dismantled product 3A is always urged downward by the spring member 42 and is sandwiched between the feeding roller 28 and the pressing roller 39, the spring reaction force is elastically received by the spring member 42 and the pressing roller 39 is raised and lowered. By allowing within a certain range, it is configured to be able to absorb the unevenness formed in the primary dismantled product 3A due to the placement of furniture or the like.

  The dust collection means 13 will be described. A dust collection box 50 elongated in the front-rear direction is provided in the middle of the machine base 24 in the height direction, and extends near the upper left of the cutting tool 31 at the upper rear portion of the dust collection box 50. A dust collection duct 51 is provided. A blower 52 is provided at the lower part of the machine base 24, and the suction port of the blower 52 is opened in the front part of the dust collection box 50. Then, when the blower 52 is driven, the inside of the dust collection box 50 becomes negative pressure, and dust generated when the primary demolition product 3A is cut by the cutting means 11 is introduced from the dust collection duct 51 into the dust collection box 50. The work environment is configured not to deteriorate. Reference numeral 53 denotes a separation chamber for preventing dust from being sucked into the blower 52, and reference numeral 54 denotes an opening / closing lid for discharging dust accumulated in the dust collection box 50.

  Explaining about the yarn removal means 14, as shown in FIGS. 6 and 7, on the right side of the elevating frame 37, an elongate support plate 60 that is vertically movable together with the elevating frame 37 is provided substantially horizontally. A movable plate 61 having a downward U-shape is provided on the lower side of the support plate 60 via a guide rod 62 so as to be movable in the vertical direction. The movable plate 61 is always moved downward by a spring member 63 externally mounted on the guide rod 62. It is energized. A substantially cylindrical suction roll 64 extending in the front-rear direction is rotatably provided on the movable plate 61. A suction means (not shown) is connected to the suction roll 64, and the primary disassembly product 3A is pressed downward by the pressing roller 39. In this state, the suction roll 64 is pressed against the back sheet 4 on the upper surface of the primary dismantled product 3A, and the suction sheet 64 is decompressed by the suction means so that the back sheet 4 can be held on the outer surface of the suction roll 64. It is configured.

  On the right side of the suction roll 64, a pair of upper and lower guide plates 65 are provided substantially parallel to the movable plate 61, an opening 66 is formed on the left portion of both guide plates 65, and on both upper and lower sides of both guide plates 65. A pair of upper and lower clamping rollers 67 that are pressed between the guide plates 65 through the opening 66 is provided. An electric motor 68 that rotationally drives the lower holding roller 67 is provided on the right side, and the back sheet 4 sucked and held by the suction roll 64 is held by the holding roller 67 and passes between the guide plates 65 to remove the yarn. It is configured to be discharged to the right side of the means 14.

Next, the operation of the dismantling apparatus 10 will be described while explaining the dismantling method of the tatami mat 1.
First, in the cutting step, as shown in FIGS. 2 and 9, the four side edge portions 1 a including the edge cloth 6 of the tatami mat 1 are cut and removed by the cutting blade 70 and separated by removing the side edge portions 1 a. The tatami mat 2 is removed, and the edge cloth 6 and the tatami mat 2 are removed to obtain a primary dismantled product 3A. However, the edge cloth 6 and the tatami surface 2 may be removed manually, or may be removed by a device having a rotary blade capable of cutting the sewing thread 5 for fixing the edge cloth 6.

  Next, in order to perform the cutting process and the yarn removing process by the disassembling apparatus 10, the primary disassembling product 3A is placed on the placing table 20 on the entrance side of the disassembling apparatus 10 with the back sheet 4 facing upward, and the right end portion of the primary disassembling product 3A. Until the first dismantled product 3A is fed to the right side. As a result, as shown in FIG. 8, the right end portion of the primary disassembled product 3A engages with the feed roller 28, and the feed disassembled product 3A is fed to the cutting means 11 by the feed roller 28, and the pressing roller 39 and the feed roller While the primary dismantled product 3A is sandwiched between 28, the entire lower surface of the board 7 disposed on the lower surface side of the primary dismantled product 3A is cut by a predetermined thickness by the cutting blade 30, and the lower surface side (front surface side) of the board 7 is cut. The exposed sewing thread 5 is cut off by cutting (cutting process). Then, after the lower surface side of the board 7 is cut by the cutting means 11, the back sheet 4 is sucked and held by the suction roll 64, and the back sheet 4 is sandwiched from the tatami base material 3 while being sandwiched by the sandwiching rollers 67. The sewing thread 5 that is peeled off sequentially and remains on the tatami base material 3 together with the back sheet 4 is pulled out from the tatami base material 3 (thread removal process), and the primary disassembled product 3A is disassembled into the back sheet 4, the board 7, and the foam 8. Then, it is sent out onto the mounting table 21 on the outlet side. In the present embodiment, the primary disassembly product 3A is cut and removed by one disassembly apparatus 10, but can also be sequentially performed by separate disassembly apparatuses.

  Thus, in this dismantling method and dismantling apparatus 10, since the primary dismantling product 3A can be disassembled into the tatami base material 3 and the back sheet 4, the members such as the board 7 and the foam 8 constituting the primary dismantling product 3A are used as materials. It is possible to separate and collect each and reuse or discard them, and resources can be used effectively. Further, the primary dismantled product 3A can be disassembled by cutting the entire surface of the primary dismantled product 3A and peeling the back sheet 4 together with the sewing thread 5. Therefore, the primary dismantled product 3A can be neatly left without leaving the sewing thread 5. And it becomes possible to disassemble the tatami 1 efficiently. Furthermore, since the cutting blade is not cut into the board 7 and the foam 8 by the rotary blade as in the prior art, the strength of the board 7 and the foam 8 can be prevented from being reduced and reused as a recycled tatami board. Is possible. In addition, when the sewing thread 5 is cut with respect to the board 7, the recess formed in the vicinity of the seam of the board 7 can also be cut flat, so that it can be reused as a recycled tatami board as it is. Further, by cutting the entire surface side of the primary dismantled product 3A by a certain thickness, the sewing thread 5 integrally connecting the tatami base material 3 and the back sheet 4 can be cut. The tatami mats 1 having different seam pitches can be dismantled continuously and efficiently while omitting the adjustment work of changing the position of the rotary blade in accordance with the sewing thread 5 exposed to the side. Furthermore, since a large number of rotary blades are not required, the structure of the dismantling apparatus 10 is simplified, and the manufacturing cost can be reduced.

  Further, since the edge cloth 6 is removed together with the outer edge portion of the tatami base material 3 in the cutting step, the edge cloth 6 can be efficiently removed, and the sewing thread 5 for fixing the tatami surface 2 to the outer edge portion of the tatami base material 3. Therefore, the primary dismantled product 3A from which the tatami mat 2 is removed can be obtained, and the amount of dust during the cutting of the primary dismantled product 3A can be reduced by the amount corresponding to the tatami mat 2. Furthermore, since the primary dismantled product 3A is cut by the cutting blade 30 disposed on the lower side of the primary dismantled product 3A while pressing the primary dismantled product 3A with the front side facing downward, the cutting blade 30 is moved up and down. Therefore, the primary dismantled product 3A can be cut by the required thickness, and various old tatami mats can be cut without complicating the structure of the dismantling apparatus 10.

Perspective view of tatami mat to be dismantled Illustration of primary dismantled product Front view of dismantling device Top view of dismantling device Side view of dismantling device Longitudinal front view of the dismantling device body Longitudinal front view of thread removal means Explanatory drawing of cutting process and yarn removal process of primary dismantled products Explanatory drawing of the cutting process which cuts and removes the outer edge part of a tatami mat Plan view of cutting tools with other configurations XI-XI sectional view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tatami 1a Side edge part 2 Tatami surface 3 Tatami base material 3A Primary disassembly goods 4 Back surface sheet 5 Sewing thread 6 Edge cloth 7 Board 8 Foam 10 Disassembly apparatus 11 Cutting means 12 Feeding means 13 Dust collection means 14 Pull-out means 20 Mounting stand 21 Mounting table 22 Rotating support member 23 Dismantling device body 24 Machine base 25 Feed shaft 26 Power transmission member 27 Electric motor 28 Feed roller 30 Cutting blade 31 Cutting tool 32 Power transmission member 33 Electric motor 34 Pressure receiving means 35 Support frame 36 Lifting means 37 Lifting Frame 38 Rotating shaft 39 Pressing roller 40 Bearing member 41 Guide rod 42 Spring member 43 Tool fixing member 31A Cutting tool 43A Tool fixing member 44 Slit for mounting 45 Fixing bolt 46 U-cut part 50 Dust collecting box 51 Dust collecting duct 52 Blower 53 Separation chamber 54 Open / close lid 60 Support plate 61 Movable plate 62 Doroddo 63 spring member 64 suction roll 65 guide plate 66 opening 67 nip roller 68 the electric motor 70 the cutting blade

Claims (8)

The tatami mat, the tatami mat base material and the back sheet are provided in a laminated form in order from the front side, and the tatami mat base sheet and the back sheet are joined together with a sewing thread, and the outer edge of the tatami mat table is fixed to the tatami mat base material with a border A method of dismantling tatami mats,
A cutting step of cutting the entire surface on the surface side of the primary dismantled product obtained by removing the edge fabric by a thickness at which the sewing thread disposed on the surface side of the tatami base material can be excised,
A thread removal step of peeling the back sheet from the primary dismantled product obtained by cutting the surface side of the tatami base material, and removing the sewing thread remaining in the primary dismantled product together with the back sheet;
A method for disassembling a tatami mat, comprising:   The disassembly of the tatami mat according to claim 1, further comprising a cutting step for obtaining a primary disassembly product obtained by cutting and removing an outer edge portion of the tatami including the edge cloth and removing the edge cloth from the tatami as a pre-process of the cutting process. Method.   The method of disassembling a tatami mat according to claim 1 or 2, wherein in the cutting step, the primary dismantled product from which the margin cloth and the tatami surface are removed is cut.   The primary dismantling product is cut by a cutting blade disposed on the lower side of the primary dismantling product while pressing the primary dismantling product from the upper side in the cutting step. The method of disassembling the tatami mat described. The tatami mat, the tatami mat base material and the back sheet are provided in a laminated form in order from the front side, and the tatami mat base sheet and the back sheet are joined together with a sewing thread, and the outer edge of the tatami mat table is fixed to the tatami mat base material with a border A tatami mat dismantling device,
A cutting means for cutting the entire surface on the surface side of the primary dismantled product obtained by removing the edge cloth by a thickness at which the sewing thread disposed on the surface side of the tatami mat base material can be excised;
Feeding means for feeding the primary dismantled product to the cutting means;
A tatami mat dismantling device comprising:   6. A tatami mat dismantling apparatus according to claim 5, further comprising a thread removing means for removing the sewing thread remaining in the primary dismantling product together with the back surface sheet by peeling off the back sheet from the primary disassembling product obtained by cutting the front surface side.   The cutting means has a cutting blade provided on the lower side of the primary dismantled product fed by the feeding means, and a pressure receiving means for receiving the cutting reaction force of the primary dismantled product by the cutting blade from the upper side. The tatami mat dismantling apparatus according to claim 5 or 6, wherein the primary dismantling product is fed to the cutting means with the surface side facing downward. The dismantling of the tatami mat according to any one of claims 5 to 7, wherein as the primary dismantling product, an outer edge portion of the tatami mat including the margin cloth is cut and removed to remove the margin cloth, and the tatami surface is removed. apparatus.

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