JP4219397B1 - Tatami folding machine and method for producing edgeless tatami using the same - Google Patents

Abstract

An object of the present invention is to provide a device that can easily and inexpensively bend a tatami surface without purchasing a new large-scale device.
The present invention provides a platform 9 for placing a tatami floor, a tatami tightening portion 17 for pressing the tatami floor placed on the platform, and a tatami floor for sewing a tatami surface. A tatami surface folding machine 1 that is detachably attached to a tatami mat sewing apparatus 8 having a sewing machine 11 and a main body 5 that is placed on a platform 9 and is rotated around one end of the main body 5. And a foldable portion 4 that is movably attached. Furthermore, the tatami surface folding machine 1 includes a first convex portion 7 and a second convex portion 6, and prevents them from slipping when placed on the platform 9.
[Selection] Figure 4A

Description

  The present invention relates to an apparatus for manufacturing an edgeless tatami, and more particularly to an apparatus for folding a tatami mat used for manufacturing an edgeless tatami and a method for manufacturing an edgeless tatami using the apparatus.

  Ordinary tatami mats (for example, one tatami mat), the tatami mat is placed on the tatami floor so that the direction of the eyes of the tatami mat is in the short direction (width direction), and the edges in the longitudinal direction (length direction) The tatami mat is sewn to the tatami floor with tatami edges, and the tatami mat is sewn directly to the tatami floor at the edge in the short direction. A device that sews a tatami mat to a tatami floor with a tatami edge at the end in the longitudinal direction is called a tatami stitching device. A device that sews the tatami mat directly on the tatami floor at the edge in the short direction is called a tatami mat sewing device. Semi-tatami mats are also manufactured in the same manner. In this way, a normal tatami mat with a tatami rim is produced.

  However, in recent years, the demand for edgeless tatami mats (also called shaved tatami mats) without tatami edges has increased, and work and labor saving in the production of edgeless tatami mats have been promoted. In the manufacture of edgeless tatami mats, it is necessary to bend the wefts or weeds neatly at 90 degrees or more perpendicular to the direction of the eyes of the tatami surface. In edgeless tatami mats, the part where the grass is bent appears on the surface. Therefore, in the manufacture of edgeless tatami mats, how to fold the weeds neatly becomes a problem in manufacturing.

  Under such circumstances, a device for folding a tatami mat (tatami mat folding device) has been proposed separately from the tatami mat sewing device and the tatami mat sewing device. However, it is necessary to secure a place for installing the tatami surface folding device, and to transport the folded tatami table to the place where the tatami sewing device and tatami mating device are installed. It is. Above all, a dedicated tatami folding apparatus is expensive.

Therefore, as shown in Patent Document 1, an apparatus in which a tatami mat folding apparatus and a tatami sewing apparatus are integrated has been proposed. Patent Document 1 discloses an apparatus in which a mechanism for folding a tatami mat is attached to a side facing a sewing machine. In the apparatus according to Patent Document 1, a rotating bent plate (5) that can rotate around an axis (6) is attached to an end of a table on which a tatami floor is placed, and a tatami table (4) is moved up and down. The tatami surface is bent by pressing the plate (2) and rotating the rotating bent plate (5) by the rotating cylinder (8).
Japanese Patent Laid-Open No. 2003-293666 FIG.

  However, even if it is an apparatus of patent document 1, the said apparatus must be newly purchased. The device has many mechanical mechanisms, is complex and of course expensive. Although it is possible to save space by using both the tatami stitching device and the tatami surface folding device, the unit price of edgeless tatami will eventually increase due to the purchase of the device.

  SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an apparatus that can bend a tatami surface simply, inexpensively and neatly without purchasing a new large-scale apparatus. Another object of the present invention is to provide a simple, inexpensive and beautiful method for producing an edgeless tatami.

  In order to solve the above problems, the present invention has the following features. The present invention includes a platform for placing a tatami floor, a tatami fastening portion for pressing the tatami floor placed on the platform, and a sewing machine for sewing a tatami floor to the tatami floor. A tatami surface folding machine, which is detachably attached to a tatami garment sewing apparatus, includes a main body portion placed on a platform and a bending portion rotatably attached to one end side of the main body portion.

  Preferably, the tatami surface folding machine may further include a shift prevention unit for preventing the main body from shifting when the main body is placed on the platform.

Preferably, the shift prevention part may include a first convex part provided on the platform side of the main body part and / or a second convex part provided on the platform side of the bent part .

  Preferably, at least a part of the back surface of the main body is covered with a CF sheet.

  Preferably, at least a part of the surface of the main body is covered with the first resin plate.

  Preferably, the bent portion may include a fixed portion attached to one end side of the main body portion and a rotating portion that is attached to the fixed portion so as to be pivoted down one step.

  Preferably, the tatami mat folding machine further includes a second resin plate that is detachably mounted on a step between the rotating portion and the fixed portion.

  Preferably, the width in the longitudinal direction of the bent portion is 1 m or more.

  Preferably, the tatami surface folding machine further includes an upper abutting portion that is detachably attached to an end portion of the tatami tightening portion so that one end side thereof abuts on a bent portion of the tatami surface.

  Another aspect of the present invention includes a platform for placing a tatami floor, a tatami tightening portion for pressing the tatami floor placed on the platform, and a sewing for sewing a tatami mat on the tatami floor. Using a tatami surface folding machine comprising a tatami mat sewing device provided with a dressing machine, and a main body part placed on the platform and a folding part rotatably attached to one end of the main body part, A method for manufacturing a tatami mat, the first step of placing the tatami mat folding machine on the platform, the second step of placing the tatami mat table on the tatami mat folding machine, and the rotation at the folding section. A third step of aligning the position to be bent with the moving boundary line, a fourth step of lowering the tatami mating part and pressing down the tatami mat and the tatami mat folding machine, and turning the folding part to fold the tatami mat 5th step to put in and raise the tatami tightening part, loosen the tightening of the tatami surface In the sixth step and the side opposite to the side already creased, the third step to the fifth step are performed to make the crease, and the first step to the seventh step. And an eighth step of placing the obtained tatami mat on the tatami floor and sewing the tatami mat to the tatami floor.

  According to the present invention, the tatami mat folding machine can be easily attached to a tatami mat sewing device usually used by a tatami maker to bend the tatami mat neatly. Since the structure of the tatami mat folding machine is simple, the folding of the tatami mat can be realized easily and inexpensively. Therefore, the edgeless tatami can be neatly manufactured without purchasing a large-scale device.

  Further, the slip prevention part (for example, the first convex part and the second convex part) prevents the tatami mat folding machine from being deviated from the mounting table, so that the tatami mat can be folded more neatly.

  By sticking the CF sheet to at least a part of the back surface of the main body, the main body slides better and the working efficiency is improved. Moreover, durability and waterproofness of the tatami surface folding machine 1 are improved.

  By sticking the first resin plate to at least a part of the surface of the main body, the tatami surface can be cut on the first resin plate using a cutter knife or the like, and the working efficiency is improved. Further, durability and waterproofness of the tatami surface folding machine are improved.

  The tatami table can be folded more neatly by lowering the rotating part one step than the fixed part. Moreover, a 2nd resin board can be mounted on a rotation part, and it becomes easy to cut a tatami surface with a cutter knife etc., and working efficiency improves.

  By setting the width of the bent portion in the longitudinal direction to be 1 m or more, a tatami surface folding machine suitable for manufacturing a semi-tatami borderless tatami is provided.

  As described above, the use of the tatami surface folding machine according to the present invention makes it possible to easily and inexpensively manufacture edgeless tatami mats.

  These and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

  FIG. 1 is a perspective view showing a tatami surface folding machine 1 according to an embodiment of the present invention. 2A is a cross-sectional view taken along plane AA in FIG. 1 and 2A, the tatami surface folding machine 1 includes a main body portion 5, a bending portion 4, a first convex portion 7, and a second convex portion 6.

  The main body 5 is a substantially rectangular plate member. A CF (cushion floor) sheet 5 a is attached to the back surface of the main body 5. The CF sheet 5a is a resin floor material that is usually attached to the floor of a kitchen, bathroom, toilet, or the like. A first resin plate 5 b is attached to the surface of the main body 5. Even if the 1st resin board 5b cuts a tatami surface with a cutter knife etc. on it, it is good in it being hard resin which is hard to hurt. Preferably, the first resin plate 5b is a cutting mat made of hard polyvinyl chloride or the like.

  The bent portion 4 includes a fixed portion 2 and a rotating portion 3. The length in the longitudinal direction of the bent portion 4 is preferably 1 m or more, but is not limited thereto. The fixed part 2 is fixedly attached to one end side of the main body part 5. The rotating part 3 is attached to one end side of the fixed part 2 so as to be movable around the rotating shaft 2a. The rotating part 3 includes a handle part 3a whose one end is swollen in a substantially circular cross section. For example, the bent portion 4 is a substantially rectangular large hinge that is rotatably attached to one end side of the main body portion 5.

  The rotating part 3 is attached so as to be rotatable one step down from the upper surface of the fixed part 2. The second resin plate 5 c can be placed on the upper surface of the rotating unit 3. FIG. 2B is a cross-sectional view taken along plane AA in FIG. 1 when the second resin plate 5c is placed. Even if the 2nd resin board 5c cuts a tatami surface on the 2nd resin board 5c with a cutter knife etc., it is good in it being hard resin which is hard to hurt. Preferably, the second resin plate 5c is a cutting mat made of hard polyvinyl chloride or the like.

  The first convex portion 7 is provided on the back side of the main body portion 5. The second convex portion 6 is provided on the back side of the rotating portion 4. The second convex portion 6 is formed to extend to the back surface side of the rotating portion 3 in order to support the rotating portion 3. A CF sheet 6 b is attached to the back surface of the second convex portion 6.

  FIG. 3 is a perspective view of a conventional general tatami mat sewing apparatus 8. In FIG. 3, the tatami mat sewing device 8 includes a platform 9, a tatami tightening portion 17, and a sewing machine 11. First, a normal method of using the tatami mat sewing device 8 will be described. The tatami mat sewing device 8 is usually used to sew a heel portion on a tatami table placed on a tatami floor. A tatami floor is placed on the platform 9 between the frame 15 and the frame 16, and a tatami surface is placed on the tatami floor. The tatami tightening portion 17 is fixed at one end of the tatami mat sewing device 8 so as to be rotatable. The fixing tool 10 attached to one end of the tatami tightening portion 17 is connected to a base part connecting tool 10a (not shown in FIG. 3). The tatami tightening portion 17 is rotated to connect the fixture 10 and the connector 10 a, and then power to lower the tatami tightening portion 17 is applied to the tatami tightening portion 17. As a result, the tatami tightening unit 17 presses the tatami floor and the tatami surface placed on the platform 9. The sewing machine 11 moves along the rail 13 with respect to the tatami floor and the tatami surface pressed by the tatami tightening portion 17, and the heel portion is sewn. After the heel portion is sewn, the elevating part 14 provided in the gap 12 rises, and the tatami floor can rotate around the rotation axis of the elevating part 14. The tatami floor is rotated so that the other heel portion is positioned on the sewing machine 11 side. Then, the raising / lowering part 14 is lowered | hung, the tatami flooring part and the tatami surface are pressed down again by the tatami fastening part 17, and the other collar part is sewn. The above is the normal method for using the tatami mat sewing device 8.

  The present invention is characterized in that a tatami surface folding machine 1 is attached to a general tatami mat sewing apparatus 8 as shown in FIG.

  FIG. 4A is a perspective view showing a state when the tatami surface folding machine 1 is attached to the tatami mat sewing device 8. FIG. 4B is a plan view showing a state when the tatami surface folding machine 1 is attached to the tatami mat sewing device 8. As shown in FIG. 4B, the distance between the one end side 7 a of the first convex portion 7 and the one end side 6 a of the second convex portion 6 substantially matches the width of the mounting base 9. One end side 7a of the first convex portion 7 is in contact with one end side 9a of the mounting base 9, and one end side 6a of the second convex portion 6 is in contact with the other end side 9b of the mounting base 9, The tatami surface folding machine 1 is placed on the platform 9. Therefore, the first convex portion 7 and the second convex portion 6 function as a shift preventing portion for preventing the main body portion 5 from being displaced when the main body portion 5 is placed on the mounting base 9. .

  A rotation boundary line 4 a (shown by an imaginary line in the drawing) in the bent portion 4 becomes a boundary between the bent portions of the fixed portion 2 and the rotation portion 3 when the rotation portion 3 is rotated. The first convex portion 7 and the second convex portion 6 are arranged at appropriate positions so that the rotation boundary line 4a and the one end side 17a of the tatami tightening portion 17 substantially coincide with each other when the tatami tightening portion 17 is lowered. Is provided.

  FIG. 5 is a sectional view taken along line BB in FIG. 4A. The tatami fastening portion 17 includes a main body plate portion 17d and an adjustment plate portion 17c. In addition, the recessed part which fits the adjustment board part 17c in the main body board part 17d may be provided between the main body board part 17d and the adjustment board part 17c so that a level | step difference may not arise. The adjustment plate portion 17c is attached to a slide hole 17g provided in the main body plate portion 17d by a screw 17e and a nut 17f so as to be finely adjusted. When the heel portion is sewn using the tatami mat sewing device 8, the user can finely adjust the position of the adjustment plate portion 17c as appropriate. Normally, once fine adjustment is performed, the heel portion can be sewn without fine adjustment thereafter. Note that the configuration by the adjusting plate portion 17c as shown in FIG.

  Hereinafter, a method for folding a tatami surface by using the tatami surface folding machine 1 and manufacturing a semi-tatami edgeless tatami will be described. FIG. 6 is a diagram for explaining a process of bending the tatami mat.

  First, as shown in FIG. 4A, the main body 5 is placed on the platform 9. In that case, the main-body part 5 is mounted on the mounting base 9 so that the mounting base 9 may be pinched | interposed by the 1st convex part 7 and the 2nd convex part 6. FIG. Next, the second resin plate 5 c is placed on the rotating unit 3.

  Next, a tatami mat S having a size necessary for manufacturing a semi-tatami rimless tatami is placed on the tatami mat folding machine 1. Next, the position to be bent in the tatami mat S is aligned with the rotation boundary line 4 a in the bent portion 4. Next, the fixture 10 of the tatami tightening portion 17 is connected to the connector 10a. Next, the drive switch 17b is pressed down to lower the tatami fastening portion 17. Thus, the tatami mat S is sandwiched between the tatami mat folding machine 1 and the tatami tightening portion 17 and pressed.

  Next, a ruler is applied to the tatami mat S, and unnecessary portions are cut with a cutter knife. At this time, the cutter knife cuts the tatami mat S while biting into the upper part of the second resin plate 5c. Next, the second resin plate 5c is removed. Next, flexible processing of grass such as hot water steam is applied to the bent portion of the tatami mat S. Further, along the one end side 17a of the tatami tightening portion 17, a broken line is attached through a thousand sheets. In addition, the flexible line process and the broken line process by a thousand sheets are not essential.

  Next, the rotation unit 3 is rotated upward by 90 degrees or more, preferably about 120 degrees, and the state is maintained for a while, and a fold is made in the tatami mat S.

  Next, the tatami tightening portion 17 is raised to loosen the tatami surface S. Next, the tatami mat S is rotated 180 degrees so that the portion to be bent is aligned with the boundary line 4a also on the side opposite to the side already having the crease. Then, after performing fixing by the tatami tightening portion 17, flexible processing, and polygonal line processing, the rotating portion 3 is rotated upward by 90 degrees or more, preferably about 120 degrees, and the state is maintained for a while. Make a crease in S. In this way, folds are formed on both sides so that they are perpendicular to the wefts of the tatami mat S.

  Next, the process proceeds to the tatami mat sewing process. First, the tatami mat S with both sides folded is placed on a tatami floor for half a tatami mat. Next, the tatami floor on which the tatami surface S is placed is placed on the tatami mat sewing device 8 so that the heel portion (the side that is not bent) is sewn, and the tatami tightening portion 17 is lowered. And press down. Next, the heel portion is sewn by the sewing machine 11. Next, the tatami tightening portion 17 is loosened and the opposite side collar portion is also sewn. Next, the tatami floor sewing machine 8 is attached with the tatami floor on which the heel portion is sewn, and one edge of the folded portion is sewn. Similarly, the opposite edge is sewn. This completes the edgeless tatami.

  As described above, the tatami mat folding machine 1 according to the present embodiment can be easily attached to the tatami mat sewing device 8 used by a fold manufacturer and can bend the tatami mat neatly. Since the structure of the tatami surface folding machine 1 is simple, folding of the tatami surface can be realized easily and inexpensively. Therefore, the edgeless tatami can be neatly manufactured without purchasing a large-scale device.

  In addition, the slip prevention portion by the first convex portion 7 and the second convex portion 6 prevents the tatami mat folding machine 1 from being displaced from the mount 9, and it is possible to fold the tatami mat more beautifully.

  By sticking the CF sheet 5a to at least a part of the back surface of the main body part 5, the main body part 5 is more slippery and the working efficiency is improved. Moreover, durability and waterproofness of the tatami surface folding machine 1 are improved.

  By sticking the first resin plate 5b to at least a part of the surface of the main body 5, the tatami surface can be cut on the first resin plate 5b using a cutter knife or the like, improving work efficiency. To do. Moreover, durability and waterproofness of the tatami surface folding machine 1 are improved.

  By lowering the rotating part 3 by one step from the fixed part 2, the tatami surface can be bent more beautifully. Moreover, the 2nd resin board 5c can be mounted on the rotation part 3, and it becomes easy to cut a tatami surface with a cutter knife etc., and working efficiency improves.

  By setting the width of the bending portion 4 in the longitudinal direction to be 1 m or more, the tatami surface folding machine 1 suitable for manufacturing a semi-tatami borderless tatami is provided.

(Modification)
The above-described embodiment can be modified as follows, for example.

  FIG. 7 is a perspective view showing a state when the upper abutting portion 20 is attached and the tatami mat S is bent. In the tatami mat sewing device 8 shown in FIG. 6, the length of the adjustment plate portion 17 c in the longitudinal direction is longer than the width of the tatami mat S. However, in the commercially available tatami mat sewing device 8, the length in the longitudinal direction of the adjustment plate portion 17c may be shorter than the width of the tatami mat S. If it is short, there is a possibility that the edge part does not bend beautifully. Therefore, the upper contact portion 20 having a length in the longitudinal direction longer than the width of the tatami mat S may be attached to the end portion of the adjustment plate portion 17c. In the example shown in FIG. 7, the upper abutting portion 20 has a cross-shaped cross section, and is inserted into the end portion of the adjustment plate portion 17c and detachably attached to the adjustment plate portion 17c. Further, the front end of the upper contact portion 20 has an acute angle. If such an upper contact part 20 is used, it becomes possible to bend the tatami mat S beautifully.

  In addition, the structure of the upper contact part 20 is not restricted to FIG. The length of the upper contact portion 20 in the longitudinal direction may be longer than the width of the tatami mat S. For example, the adjustment plate portion 17c shown in FIG. 7 may be removed and the adjustment plate portion 17c shown in FIG. 6 may be attached to the main body plate portion 17d. In this case, the adjustment plate portion 17c shown in FIG. 6 is an upper contact portion.

  In addition, if at least any one of the 1st convex part 7 and the 2nd convex part 6 is provided, the shift | offset | difference of the tatami surface folding machine 1 can be prevented.

  The embodiment described above is merely an example, and various modifications can be made. The material of the tatami surface folding machine 1 may be metal, wood, or plastic. The structure of the slip prevention part is not limited to the convex part, and may be such that the bolt 9 is detachably fastened to the mounting base 9 using bolts and nuts. It may be affixed to. The size of the tatami surface folding machine 1 is merely an example, and any size can be used as long as it can be detachably attached to a commercially available tatami mat sewing device 8. Naturally, the tatami mat sewing apparatus 8 shown in the present embodiment is merely an example and does not limit the present invention. The CF sheet 5 a and the first resin plate 5 b that cover the tatami surface folding machine 1 may cover at least a part of the main body 5. The rotation mechanism of the bending part 4 is not limited to a hinge structure as shown in FIG. As long as the bending part 4 is attached to the main-body part 5 so that rotation is possible, it can take all the known structures.

  Although the present invention has been described in detail above, the above description is merely illustrative of the present invention in all respects and is not intended to limit the scope thereof. It goes without saying that various improvements and modifications can be made without departing from the scope of the present invention.

  The tatami surface folding machine and the edgeless tatami mat manufacturing method using the same according to the present invention can be used for suitably manufacturing the edgeless tatami mat and are industrially applicable.

The perspective view which shows the tatami surface folding machine 1 which concerns on embodiment of this invention. Sectional view in the AA plane in FIG. Sectional drawing in the AA surface in FIG. 1 when the 2nd resin board 5c is mounted. A perspective view of a conventional general tatami mat sewing device 8 The perspective view which shows a mode when the tatami surface folding machine 1 is attached to the tatami mat sewing machine 8 The top view which shows a mode when the tatami surface folding machine 1 is attached to the tatami mat sewing machine 8 Sectional drawing in the BB line in FIG. 4A The figure for demonstrating the process of bending a tatami mat The perspective view which shows a mode when attaching the upper contact part 20 and bending the tatami mat S

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tatami surface folding machine 2 Fixing part 3 Rotating part 4 Bending part 4a Rotation boundary line 5 Main-body part 5a CF sheet 5b 1st resin board 5c 2nd resin board 6 2nd convex part 7 1st convex part 8 Tatami pad sewing device 9 Platform 10 Fixing tool 10a Connecting tool 11 Sewing machine 12 Gap 13 Rail 14 Lifting parts 15, 16 Frame 17 Tightening part 17a One end side 17b of tatami fastening part 17 Drive switch 17c Adjusting plate part 17d Main body Plate part 17e Screw 17f Nut 17g Slide hole 20 Upper contact part S Tatami surface

Claims (10)

A tatami mat comprising a platform for placing a tatami floor, a tatami tightening portion for pressing the tatami floor placed on the platform, and a sewing machine for sewing a tatami mat to the tatami floor. A tatami surface folding machine that is detachably attached to the heel sewing device,
A main body placed on the platform;
A tatami surface folding machine, comprising: a folding part rotatably attached to one end side of the main body part.   The tatami surface folding machine according to claim 1, further comprising a slip prevention unit for preventing the main body from shifting when the main body is placed on the platform. The shift prevention part includes a first convex part provided on the platform side of the main body part and / or a second convex part provided on the platform side of the bent part. The tatami surface folding machine according to claim 2 . The tatami surface folding machine according to any one of claims 1 to 3 , wherein at least a part of the back surface of the main body is covered with a CF (cushion floor) sheet. The tatami surface folding machine according to any one of claims 1 to 4 , wherein at least a part of the surface of the main body is covered with a first resin plate. The bent portion is
A fixing part attached to one end side of the main body part;
The tatami surface folding machine according to any one of claims 1 to 5 , further comprising a rotating portion that is lowered by one step and is rotatably attached to the fixed portion. Furthermore, the 2nd resin board detachably mounted in the level | step difference of the said rotation part and the said fixing | fixed part is provided, The tatami surface folding machine in any one of Claims 1-6 characterized by the above-mentioned. Wherein the longitudinal width of the bent portion is not less than 1 m, Tatami folding machine according to claim 1-7. Furthermore, it has an upper contact part removably attached to the edge part of the said tatami tightening part so that one end side may contact | abut to the bending part of the said tatami surface, In any one of Claims 1-8 characterized by the above-mentioned. The tatami mat folding machine. A tatami mat comprising a platform for placing a tatami floor, a tatami tightening portion for pressing the tatami floor placed on the platform, and a sewing machine for sewing a tatami mat to the tatami floor. Manufactured an edgeless tatami mat using a tatami surface folding machine comprising a heel sewing device, a main body portion mounted on the mounting base, and a bending portion pivotally attached to one end side of the main body portion. A method for
A first step of placing a tatami surface folding machine on the platform;
A second step of placing the tatami mat on the tatami mat folding machine;
A third step of aligning the position to be bent with the rotation boundary line in the bent portion;
A fourth step of lowering the tatami tightening portion and pressing the tatami surface and the tatami surface folding machine;
A fifth step of turning the bent portion to make a crease in the tatami surface;
A sixth step of raising the tatami tightening portion and loosening the tightening of the tatami surface;
A seventh step of applying a crease to the side opposite to the side already creased by applying the third to fifth steps,
An eighth step of laying the tatami mat obtained in the first to seventh steps on the tatami floor and sewing the tatami mat to the tatami floor;

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