JP2005023731A - Device for bending tatami facing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for bending tatami facing, which enables neat bending of the tatami facing made of a synthetic resin, so as to efficiently produce a rimless tatami mat capable of providing great aesthetic satisfaction. <P>SOLUTION: This device for bending the tatami facing, which is used for bending the tatami facing 3 made of the synthetic resin along a side edge of a tatami core 2, comprises: a table 1 for placing the tatami core 2 by locating the tatami facing 3 in a lower position; a tatami-core fixing means for holding down the tatami core 2, placed on the table 1, to the table 1; a streak making means for making a burnt streak 27 along the side edge of the tatami core 2 on the tatami facing 3 protruding from the side edge of the tatami core 2; and a bending means for bending the tatami facing 3, protruding from the side edge of the tatami core 2, toward the tatami core 2. The streak making means has a streak making plate 13 which is pressed against the tatami facing 3 from above so as to make the burnt streak 27. The device also comprises a streak-making-plate hoisting/lowering means for hoisting and lowering the plate 13 with respect to the tatami facing 3, and a heating means for heating at least a lower edge 26, which is brought into contact with the tatami facing 3, of the plate 13, to a predetermined temperature. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a tatami surface folding apparatus that folds a synthetic resin tatami mat along the side edge of a tatami floor with good aesthetics.

  In order to bend the tatami mat along the side edge of the tatami floor with good aesthetics, it is advisable to apply a muscle along the side edge of the tatami floor to the tatami floor. In the tatami surface folding device of Patent Document 1, in order to determine the folding position of the edgeless tatami surface at once over the entire length of the tatami floor, a plate spring-like positioning plate perpendicular to the tatami surface and a lifting device for the positioning plate are provided. A folding plate and a lifting device for the folding plate are provided in order to make the folding of the edgeless tatami surface uniform over the entire length of the tatami floor. In addition, the tatami mat side pushing device that corrects the bulge of the tatami mat at the end of the tatami mat, the floor stopper that does not move the entire tatami mat when the tatami mat is pushed sideways, and the tatami mat bulge itself can be raised and lowered. We are also proposing about the floor presser.

  The tatami surface folding apparatus of Patent Document 2 is a table that can be moved up and down by placing a tatami mat on the tatami mat surface so that the tatami mat surface is bent at right angles to the weave of the tatami mat surface along the long side of the tatami mat in the process of manufacturing an edgeless tatami mat. The tatami holding means for preventing the movement of the tatami placed on the tatami mat, the positioning means for raising and lowering to determine the folding position of the tatami table, and the upper corner of the tatami mat on the protruding part of the tatami table when the table is lowered And a bending unit that bends along the edge.

  The tatami surface folding apparatus of Patent Document 3 is a table that can be moved up and down by placing a tatami mat on the tatami mat surface so that the tatami mat surface is folded at right angles to the weave of the tatami mat surface along the long side of the tatami mat. A tatami holding means for preventing the movement of the tatami placed on the floor, a floor bending machine that bends the back side of the tatami floor to be convex at the center of the tatami width, and a positioning means that can be raised and lowered to determine the folding position of the tatami surface. When the table is lowered, the table has a folding means for folding the upper corner of the tatami mat on the protruding portion along the side edge of the tatami mat and a means for folding the tatami mat along the lower corner of the long side of the tatami floor.

Japanese Patent Laid-Open No. 2001-227143 (2-3 pages, FIGS. 2-9) JP 2001-317190 A (2-4 pages, FIGS. 2-7) Japanese Patent Laid-Open No. 2002-070295 (2-4 pages, FIGS. 2-9)

  Of course, ordinary tatami mats with rims (hereinafter referred to as normal tatami mats), but especially rimless tatami mats without rims, bend the tatami table neatly along the side edges of the tatami floor to enhance aesthetics. It becomes important. The traditional tatami-mat tatami mats can be firmly attached to the muscles that help to make a beautiful bend by simply pressing a stencil board, but the synthetic resin tatami mats that have begun to be used in recent years. It is difficult to achieve sufficient creasing simply by pressing the streaked plate. This is due to the elasticity of the synthetic resin, particularly self-restoring, and in order to achieve a beautiful folding as a tatami surface, it is necessary to suppress or prevent the resilience or self-restoring at the time of creasing. Therefore, in order to efficiently produce ordinary tatami mats with excellent aesthetics, especially edgeless tatami mats, we studied to develop a tatami mat folding device that can fold a synthetic tatami mat table neatly.

  As a result of the study, in a tatami mat folding apparatus that folds a synthetic resin tatami mat along the side edge of the tatami floor, a tatami mat folding apparatus provided with a barring means for forming a grilling bar on the tatami mat along the side edge of the tatami floor. Developed. The entire tatami surface folding apparatus includes a table on which the tatami floor is placed with the tatami surface down, tatami floor fixing means for pressing the tatami floor placed on the table against the table, and the tatami floor on the tatami surface protruding from the side edge of the tatami floor. It is the structure which consists of a creasing means which attaches a grilling line along the side edge of this, and a bending means which bends the tatami surface which protrudes from the side edge of a tatami floor toward this tatami floor. In this case, the specific baring means includes a barbed plate that presses the lower edge against the tatami surface from above, barbed plate lifting means for moving the barbed plate up and down relative to the tatami surface, and at least the lower edge of the barbed plate. It comprises a heating means for heating to a predetermined temperature.

  The tatami surface folding apparatus of the present invention folds the tatami table protruding from the side edge of the tatami floor from the bottom to the top while fixing the position of the tatami floor on the table with the tatami table facing down, and Bend the tatami table. In the present invention, the heating means is provided on the barbed plate of the baring means, the tatami table made of synthetic resin is slightly melted to form the baked bar of the cross-sectional concave groove, and the tatami table is bent with good aesthetics with the baked bar inside. Enable. The barbed plate is a long plate-like body extending along the side edge of the tatami floor, and at least the lower edge, preferably the whole is made of a metal material. The metal material is not particularly limited as long as it is a metal having excellent heat conductivity, but is preferably made of gun metal, brass, aluminum, or copper from the viewpoint of ease of processing. Here, in order to prevent the tatami table from being burned out by the barbed plate, the depth of the barb of the groove in the cross section is limited to about 1/2 of the thickness of the tatami mat by attaching a stopper that contacts the table to the barbed plate. Good. The width of the grilled bar is about 1 mm.

  A specific heating means is composed of a heating wire housed in a heating wire hole penetrating in the extending direction of the barbed plate, and a configuration in which the lower edge is heated to a predetermined temperature by heat conduction from this heating wire can be exemplified. . Since the heating wire is heated from the inside of the barbed plate, the heat energy of the heating wire can be transmitted to the barbed plate without waste. When only the lower edge is made of a metal material, the heating wire and the lower edge may be connected with a heat conductor. If the entire barbed plate is a metal material, the heat of the heating wire is transmitted using the barbed plate itself as a heat conductor. Here, the heating of the streaked plate is desirably uniform in the extending direction of the streaked plate, but the temperature of the heating wire is likely to be relatively higher than the starting end and the end. Therefore, in the heating wire hole penetrating in the extending direction of the streaked plate, a spiral heating wire having a wide pitch near the center of the streaked plate and a narrow pitch near both ends of the streaked plate is stored as a heating means. And it is good to heat a lower edge to predetermined temperature by the heat conduction from this heating wire. The helical heating wire can relatively increase the heating temperature in the vicinity of the both ends of the streaked plate, and conversely reduce the heating temperature in the vicinity of the center of the streaked plate according to the difference in pitch interval.

  In addition, since thin tatami mats that have begun to spread in recent years are thin, it is desirable to add two parallel streaks to each of the tatami floor surface and each boundary between the side edge and the side edge and the back surface of the tatami floor. The barring means for attaching the two parallel streaks is to attach the sub-barbed plate that is parallel to the barbed plate and touches the tatami surface simultaneously with the lower edge of the barbed plate to the barbed plate. Constitute. In this configuration, the barbed plate and the auxiliary barbed plate are heated to a predetermined temperature by heat conduction from the heating means of the barbed plate. As a result, it is possible to attach two lines of parallel grilling bars by attaching a single reinforcing bar only with a reinforcing plate, and attaching a secondary reinforcing plate if necessary.

  According to the present invention, it becomes possible to easily add a grilled line for neatly folding a synthetic resin tatami surface, so that it is possible to efficiently produce a normal tatami mat or an edge tatami mat excellent in aesthetics at the side edge. Become. In addition, the tatami surface folding apparatus according to the present invention presses a heavy metal barbed plate against the tatami surface, so that if the heating means is not used, the same as that of the conventional tatami surface made of grass can be added. it can. Furthermore, if a board with a supplementary bar is attached to the board with a bar, a parallel two-shaped grilling bar suitable for a thin tatami mat can be easily formed on a tatami surface made of synthetic resin. As described above, the tatami surface folding apparatus according to the present invention can add 1 or 2 scallops to the conventional tatami mat and synthetic resin tatami mat, respectively, and can provide almost any tatami aesthetic. Has the effect of increasing.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a tatami mat folding apparatus according to the present invention, FIG. 2 is a side view of the tatami mat folding apparatus, FIG. 3 is a perspective view showing a barbed plate 13, and FIG. FIG. 5 is a partially enlarged side view of a normal tatami mat showing a state in which the tatami table 3 is bent according to a single grilled bar 27, and FIG. 6 is parallel to the tatami table 3. FIG. 7 is a partially enlarged side view showing the barbed plate 13 and the auxiliary barbed plate 28 for attaching the two strips of grilled bars 27 and 27, and FIG. It is a partial expanded side view of the thin tatami mat showing the state. Each tatami table 3 shown in this example is made of a synthetic resin.

  First, the overall configuration of the tatami mat folding apparatus of this example will be described. As shown in FIGS. 1 and 2, the tatami surface folding apparatus of this example has a table 1, a tatami floor fixing means, a tatami surface tensioning means, a barring means, a corner folding means, and an upper edge folding means with respect to the frame 4. And a lower edge bending means. The table 1 is a work standard for placing the tatami floor 2 with the tatami table 3 facing down, and is fixed in position (does not move up and down) in the present invention. Since the tatami floor 3 is placed on the table 1 with the tatami table 3 facing down, the up-down direction of each figure and the up-down direction of the tatami floor 2 are reversed. That is, the tatami floor 2 grounds the upper edge 5 of the side edge with respect to the table 1, and the lower edge 6 of the side edge in each drawing is located on the upper side.

  The tatami floor fixing means has a structure in which a presser plate 7 that presses the tatami floor 2 placed on the table 1 against the table 1 is moved up and down by a presser cylinder 8, and a lower edge bending means is provided. The tatami surface pulling means is not essential for the configuration of the present invention, but it is preferable to provide the tatami surface 3 for bending of the tatami surface 3 having excellent aesthetics. This tatami mat pulling means is not used when tacking the first side of the four sides of the tatami floor 2 but when folding the remaining three sides of the tatami mat. Specifically, it comprises upper and lower sandwiching plates 10 and 10 that can be freely opened and closed and are laid between swingable crank-shaped support frames 9 and 9. The support frame 9 moves the clamping plates 10 and 10 closer to and away from the tatami table 3 protruding from the end of the table 1 by the swing cylinder 11. The holding plates 10 and 10 are opened and closed by an opening / closing cylinder 12 attached to the support frame 9.

  The scoring means is used to fold the tatami mat 3 with good aesthetics, and to attach a burnt bar 27 (see FIG. 4) along the upper edge 5 of the tatami floor 2 to the tatami mat 3 protruding from the side edge of the tatami floor 2. The base plate 13 is moved up and down by a barbed plate lift cylinder 14 which is a barbed plate lift means, and is translated in a state where the lower edge 26 is pressed against the tatami surface 3 by the barbed plate parallel cylinder 15 which is a barbed plate parallel movement means. It is the structure to make. The streaked plate elevating cylinder 14 is fixed to the frame 4 and hangs down, and a streaked plate parallel cylinder 15 is attached to the lower end, and the streaked plate parallel cylinder 15 supports the streaked plate 13.

  As shown in FIGS. 3 and 4, the barbed plate 13 of this example is composed of a rigid plate having a wedge-shaped cross section made of a gun metal having excellent heat conductivity, and has a hole for a heating wire penetrating in the extending direction. 31 includes a helical heating wire 23 (cartridge heater). In this example, in order to adjust the heating temperature of the streaked plate 23 by the heating wire 23, the temperature sensor 24 is housed in the sensor hole 3 penetrating in parallel with the heating wire hole 31. The heating wire 23 and the temperature sensor 24 are each connected to a temperature controller (not shown), and the temperature controller stops energizing the heating wire 23 when the measured temperature of the streaked plate 13 detected by the temperature sensor 24 exceeds the heating temperature. When the measured temperature falls below the heating temperature, the temperature controller resumes energization of the heating wire 23.

  The barbed plate 13 thus heated to a predetermined temperature presses the lower edge 26 against the tatami table 3 and is moved parallel to the tatami table 3 in the direction along the side edge of the tatami floor 2. A grilled line 27 is formed. At this time, stoppers 25 and 25 having adjustable protrusions are provided on the left and right sides of the barbed plate 13 so that the tatami surface 3 is not burned out. When the barbed plate 13 is lowered, the lower end of the stopper 25 is disposed. Is brought into contact with the table 1 so that the lower edge 26 of the streaked plate 13 is slightly separated from the table 1. In this example, when the thickness of the tatami mat is t0, the separation t1 of the lower edge 26 with respect to the table 1 is t1≈1 / 2 × t0.

  In this example, it has a pair of corner folding means which folds the corner part of the tatami surface 3 to be folded inward from the left and right outsides in accordance with the operation of the scoring means. The corner folding means of this example includes a pair of folding plates 16 and 16 that are pressed against the tatami table 3 from the left and right outer sides to fold the corners of the tatami table inward. It comprises folding plate parallel cylinders 17 and 17 which are folding plate parallel moving means for moving left and right independently in the direction along the side edge. The folding parallel cylinder 17 is fixed to the frame 4. Each folding plate 16 of this example also serves as a pair of regulating means for regulating the range of left and right movement of the above-mentioned barbed plate, and when a regulating means is provided separately from the folding means, each folding plate is attached to the barbed plate. May be. The barbed plate 13 moves left and right within a range in which both ends abut against the folding plates 16 and 16.

  The upper edge folding means rises from below the side edge of the table 1 from which the tatami table 3 protrudes, and the upper edge that bends the tatami table 3 protruding from the side edge of the tatami floor 2 toward the side edge upper edge 5 of the tatami floor 2 The bent plate 18 is supported by an upper edge bent plate push-up cylinder 19 pivotally attached to the frame 4. This upper edge folding means is usually used regardless of whether it is a tatami mat or a thin tatami mat. The lower edge bending means is a lower edge bending which bends the tatami table 3 bent toward the side edge upper edge 5 of the tatami floor 2 by the upper edge bent plate 18 toward the side edge lower edge 6 of the tatami floor 2. The plate 20 is constructed between the lower edge bent plate parallel cylinders 21 and 21 supported at both ends of the presser plate 7 described above. When the presser plate 7 is raised and lowered, the lower edge bent plate 20 is in the way, so each lower edge bent plate parallel cylinder 21 is supported by the rotating cylinder 22, and usually the lower edge bent plate 20 is flipped up. Yes. This lower edge folding means is used particularly when thin tatami mats are produced when the tatami mat 3 is folded back to the back of the tatami floor.

  Next, a description will be given of the procedure for setting the tatami surface 3 by the tatami surface folding apparatus of this example. First, as can be seen in FIGS. 1 and 2, the tatami floor 2 is placed on the table 1 with the tatami mat 3 facing down. At this time, it is desirable to align the side edge of the tatami floor 2 with the end of the table 1 having the barbed plate 13 and the like, and the tatami floor 2 for folding the tatami table 3 to align the end of the table 1 and the side edge of the tatami floor 2 as much as possible. A tatami floor guide composed of protrusions or lines to which side edges other than the side edges are attached may be provided on the table 1 (not shown).

  The tatami floor 2 placed on the table 1 with the side edges aligned at the end of the table 1 extends the presser cylinder 8 to lower the presser plate 7 and presses the tatami floor 2 against the table 1 to fix the position. At the same time, the folding plate parallel cylinders 17 and 17 are extended and moved until the folding plates 16 and 16 come into contact with the tatami floor 2, and the corners of the tatami mat 3 are folded inward from the left and right. Thereby, the space | interval of a pair of folding plates 16 and 16 necessarily corresponds to the length of the side edge of the tatami floor 2, and the board 13 with the back and forth movement in the range of each folding plates 16 and 16 is tatami mat 3 The left and right are moved only within the range of, and the line of the range of the tatami mat 3 is executed.

  Here, prior to the streak of the tatami table 3, the clamping plates 10 and 10 are caused by the extension of the swing cylinder 11, and the opening and closing cylinder 12 is extended so that the tatami table 3 protruding from the end of the table 1 is moved to the clamping plates 10,10. Then, the swing cylinder 11 is slightly retracted and the tatami mat 3 is pulled. As a result, the tatami mat 3 is in a state of being tensioned with respect to the surface of the tatami floor 2 (the surface in contact with the table 1 in each figure), and the subsequent crease and folding of the tatami mat 3 can be executed neatly. .

  Then, the open / close cylinder 12 is retracted to release the tatami table 3 from the sandwiching plates 10, 10, and then the swinging cylinder 11 is retracted to retract the sandwiching plates 10, 10, and then the braided plate lifting cylinder 14 is expanded. Lower the barbed plate 13 to the tatami surface 3. Then, the barbed plate 13 is moved left and right in the direction along the side edge of the tatami floor 2 in parallel with the tatami mat table 3 by extension and contraction of the barbed plate parallel cylinder 15 to form the grilled bar 27, that is, do. Since it takes time to heat the streaked plate 13 with the heating wire 23, it is preferable to energize the heating wire 23 in advance to sufficiently heat the streaked plate 13. The heating temperature is set to 200 ° C., and is set in the range of 150 to 250 ° C., preferably 175 to 225 ° C., depending on the type and thickness of the synthetic resin tatami surface. The heating temperature is maintained at a predetermined temperature by the temperature sensor 24. The barbed plate 13 thus heated can move left and right several times to form a uniform burnt bar 27 at a constant depth.

  Here, in the case of a thin tatami mat, the tatami table 3 will be folded back to the back of the tatami floor. Therefore, as shown in FIG. The roasting bars 27 and 27 are formed. Since the heating of the auxiliary reinforcing plate 28 depends on the electric heat from the reinforcing plate 13, it is desirable that the auxiliary reinforcing plate 28 is sufficiently adhered to the reinforcing plate 13. Therefore, the auxiliary reinforcing plate 28 is firmly fixed to the reinforcing plate 13 by bolting or the like.

  After the scoring is completed, the scoring plate lifting cylinder 14 is retracted to pull up the scoring plate 13, and the folding plate parallel cylinders 17 and 17 are retracted to retract the folding plates 16 and 16. Then, the upper edge bent plate push-up cylinder 19 is extended, the upper edge bent plate 18 is lifted from below the side edge of the table 1 from which the tatami table 3 protrudes, and the tatami table 3 protruding from the side edge of the tatami floor 2 is Bend toward the upper edge 5 of the side edge of the tatami floor 2. Thus, in the case of normal tatami mats, as shown in FIG. 5, it is possible to fold the tatami surface 3 with the side edges of the tatami floor 2 in contact with a beautiful crease according to one line of grilled bar 27.

  In the case of a thin tatami mat, the lower edge bent plate parallel cylinder is rotated by the rotating cylinder 22 while maintaining the state where the upper edge bent plate 18 is bent and pressed against the upper edge 5 of the side edge of the tatami floor 2. 21 and the lower edge bent plate 20 are lowered integrally, and the lower edge bent plate parallel cylinder 21 is retracted, so that the lower edge bent plate 20 causes the tatami table 3 to face the side edge lower edge 6 of the tatami floor 2. Bend it. In this way, in the case of thin tatami mats, as shown in FIG. 7, with a beautiful crease according to the two parallel streaks 27 and 27, the tatami table 3 is in contact with the side edges and the back surface of the tatami floor 29. Can be folded.

  As a finish, the folded tatami surface 3 is tacked to the side edge of the tatami floor 2 (in the case of normal tatami mats) or the back surface of the tatami floor 29 (in the case of thin tatami mats). Although it is possible to automate the tacker stop, in the present example, the worker holds the tacker to stop the tacker from the relationship between the manufacturing cost of the apparatus and the flexibility of the work. After finishing the tacker stop, if the upper edge bent plate 18, the lower edge bent plate 20, and the presser plate 7 are retracted, the tatami floor 2 or the tatami floor 29 after the folding of the tatami table 3 can be released. .

It is a front view of the tatami surface folding apparatus based on this invention. It is a side view of the same tatami surface folding apparatus. It is a perspective view showing the board with a line. It is the elements on larger scale showing the lined board which attaches one line of grilling to the tatami mat. It is the partial expanded side view of the normal tatami mat showing the state where the tatami mat was folded according to one line of grilling bars. It is the partial expanded side view showing the board with a streak which attaches two stripes parallel to a tatami surface, and a board with a secondary streak. It is the partial expanded side view of the thin tatami mat showing the state which folded the tatami mat according to the parallel two grilling bars.

Explanation of symbols

1 Table 2 Ordinary tatami mat floor 3 Tatami mat 4 Frame 7 Presser plate 8 Presser cylinder 9 Support frame
13 Striped board
14 Straight plate lifting cylinder
15 Straight plate parallel cylinder
16 Folding plate
17 Folded plate parallel cylinder
18 Upper edge bent plate
19 Upper edge bent plate push-up cylinder
20 Lower edge bent plate
21 Lower edge bent plate parallel cylinder
22 Rotating cylinder
23 Heating wire
24 Temperature sensor
25 Stopper
26 Bottom edge of streaked plate
27 Yakisuji
28 Plate with accessory bars
29 Thin tatami floors
30 Lower edge of the plate with accessory bars
31 Heating wire hole
32 Sensor hole

Claims (4)

In a tatami mat folding apparatus for folding a synthetic resin tatami mat along a side edge of a tatami floor, a tatami mat fold is provided with a barring means for forming a grilling bar on the tatami mat along the side edge of the tatami floor. apparatus. The crease means includes a crease plate that presses the lower edge against the tatami surface from above, a crease plate elevating means that moves the crease plate up and down relative to the tatami surface, and heating that heats at least the lower edge of the crease plate to a predetermined temperature The tatami mat folding apparatus according to claim 1, comprising means. The heating means comprises a heating wire housed in a heating wire hole extending in the extending direction of the barbed plate, and the lower edge is heated to a predetermined temperature by heat conduction from the heating wire. Tatami folding device. The crease means is detachably attached to the crease plate with a secondary crease plate parallel to the crease plate and in contact with the tatami surface at the same time as the lower edge of the crease plate. The tatami surface folding apparatus according to claim 2, wherein the barbed plate and the auxiliary barbed plate are heated to a predetermined temperature by heat conduction.

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