JP5998341B2 - Tatami folding machine for edgeless mat - Google Patents

Description

The present invention relates to a tatami mat folding machine for producing edgeless tatami mats.

  Conventionally, there has been a proposal for an apparatus for manufacturing a rimless tatami mat, and in order to manufacture a rimless tatami mat, a tatami mat folding machine that folds a tatami mat table that is sewn or attached with a tatami mat to a heel. A table for placing the tatami mat on the bottom, a tatami presser for fixing the tatami mat placed on the table, and a tatami floor end presser for fixing the tatami floor by pressing the tatami end against the table from above. And a folding means for bending the tatami table protruding from the tatami upper surface of the tatami mat sewn or attached to the heel so as to be bent along the tatami side surface and pressing it against the tatami side surface. 2. Description of the Related Art A tatami mat folding machine for edgeless folding is known in which a tatami mat and a tatami mat end are fixed by a floor end press and a tatami mat is folded by a turning folding means. (Patent Document 1)

  In addition, in order to bend the tatami mat along the long side of the tatami mat at right angles to the texture of the tatami mat table in the edgeless tatami mat manufacturing process, a table on which the tatami mat can be placed and moved up and down, and the tatami mat placed on the table Tatami presser means for preventing movement, positioning means for raising and lowering to determine the folding position of the tatami table, and folding means for folding the upper corner of the tatami mat on the protruding portion along the side edge of the tatami when the table is lowered. There is also known an edgeless tatami surface folding machine characterized in that the above-mentioned various means are automatically operable. (Patent Document 2)

  Also, in the edgeless tatami mat manufacturing process, in order to bend the tatami mat along the long side of the tatami mat at right angles to the texture of the tatami mat, a table on which the tatami mat can be placed and moved up and down, and the tatami mat placed on the table A tatami holding means for preventing movement by pressing, a floor bending machine for bending so that the back side of the tatami floor is convex in the center of the tatami width, a positioning means capable of moving up and down for determining the folding position of the tatami surface, and the table A folding means for folding the upper corner of the tatami mat at the protruding portion of the tatami mat 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. A tatami mat folding machine is also known. (Patent Document 3)

JP 2011-012429 A JP 2001-317190 A Japanese Patent No. 4604255

  In machines such as Patent Document 2 and Patent Document 3, when folding the tatami mat so that the tatami mat is in contact with the tatami mat floor, the tatami mat (tatami mat and tatami mat floor) moves together with the table and moves while the tatami mat is moved by the folding plate. It is configured to be bent. When the tatami mat is folded, pressure is applied to the tatami mat to press the tatami mat along the tatami floor, and the surface of the tatami mat is in friction with the folding plate. Folding the tatami mat so that the tatami mat is firmly attached to the tatami floor also increases the frictional force, which can damage the surface of the surface of the tatami surface and leave a trace of contact with the folding plate even if the surface of the tatami surface is not damaged. there were. On the side of the tatami, the above traces of contact will not be visible when tatami is laid in the room, but even when tatami is laid in the room, the above traces of contact will be visible at the corners of the top surface of the tatami. In some cases, there was a problem in the finish.

  Further, in the machine of Patent Document 3, a floor bending machine is provided that bends so that the back side of the tatami floor is convex at the center of the tatami width, and after folding the back side of the tatami floor so that it is convex, As described in paragraph 0023 of Patent Document 3, when it is stopped once about 7 mm above the tatami surface, it is pulled until the side edge of the tatami floor hits the positioning plate, and the bending position, Even if the position of the tatami floor is adjusted, the positioning plate is a plate-like member, and if the tatami surface is pulled and the tension is applied during positioning, the positioning plate itself will bend and the tatami floor will be bent. Due to the occurrence of displacement to the position, it was not possible to put a strong tension.

  Also, even if you try to apply tension when the tatami floor is bent, when the tatami presser is lowered and lowered together with the table, the positioning plate is lowered so that the positioning plate does not bend. When the tatami surface is pressed, the tension cannot be maintained even if the tatami surface is pressed with the tip of the plate with no thickness of the positioning plate, or the positioning plate rises faster than the folding timing of the tatami surface when folding the tatami surface Since the timing is set, the tatami table is loosened from the tensioned state and returned to the tatami table, and as a result, the bending is performed with the tension being weakened.

  For rimless tatami mats, the adhesive is applied to the entire surface of the tatami floor and the tatami mat is attached to the tatami floor. Some tatami mats are manufactured without being bonded, and in tatami mats where tatami mats are manufactured with the tatami mats attached to the entire upper surface of the tatami floor, the tatami mats are affixed to the tatami floor exactly. Therefore, by folding at the folding position at the corner of the tatami floor, swelling of the tatami surface is unlikely to occur, and the finish can be produced aesthetically by firmly attaching the folds, but the heel part was sewn If the tatami mat is unbounded, the tatami surface is not attached to the tatami floor at the center of the tatami mat's return side. When fixing one side of the return part and then fixing the other side, if the tatami table is not treated with tension, the tatami table will be loosened, or it will be fixed with a fluffy feel remaining The problem of ending up remained.

In the machine of Patent Document 1 proposed to solve the problem of Patent Document 2, the position to bend the tatami surface is determined using a positioning plate as in the machines of Patent Document 2 and Patent Document 3. , Because the tatami table was not structured to be tensioned by applying tension to the tatami mat, when the folding of the tatami mat on one side was completed, the request to fold the tatami mat with the tension applied to the tatami mat It had a problem for.

  Claim 1 of the present invention for solving the above-mentioned problems is a tatami surface folding machine for producing an edgeless tatami mat, comprising a table on which a tatami floor end for folding a tatami surface is placed, and provided above the table. A floor end presser, a tatami floor holding means for holding a protruding object against the tatami floor provided on the floor end presser, and a tatami floor end near the end located on the table. A tatami floor folding means for folding the tatami floor in contact with the tatami floor; means for facing the tatami floor placed on the table; folding and pressing the tatami mat on the side of the tatami floor; In a state where the position of the tatami floor is held only by the tatami floor holding means, the tatami floor is folded by the tatami floor folding means, and the tatami mat near the center in the tatami floor width direction is loosened. Tension was applied to eliminate slack After keeping the tension or tatami mat in tension, lower the floor end presser to fix the tatami floor and tatami mat on the table, and then fold and paste the tatami mat on the side of the tatami floor and the back of the tatami floor. It is characterized by doing.

  Further, according to a second aspect of the present invention, the protrusions of the tatami floor holding means are a plurality of tatami floor holding needles that hold the tatami floor so that the tatami floor is not moved by being inserted into the tatami floor. To do.

  According to a third aspect of the present invention, when the tatami floor is folded by the tatami floor folding means located on the side of the table on which the end of the tatami floor is placed, it interferes with the folding of the tatami floor. It has a tatami floor placing means for retreating to a position where it is not.

  According to a fourth aspect of the present invention, the tatami floor placing means is a turning table provided on the side of the table so that the upper surface of the table can turn downward from a state in which the upper surface coincides with the upper surface of the table. And

  Moreover, Claim 5 of this invention has a floor pressing in the tatami floor center side side of the said floor end pressing.

  According to a sixth aspect of the present invention, there is provided discrimination means or memory for discriminating the degree of folding of the tatami floor by the tatami floor folding means.

  The tatami floor holding means removes slack from the tatami mat and holds the tatami mat so that it does not move when tension is applied to the tatami mat. The force that presses the tatami floor itself does not have to be so great. If the pressing force is small, it is easy to remove the slack of the tatami mat.

  The tatami floor mounting means located on the side of the table is a preferred embodiment, but it can be implemented even if there is no need to make the tatami floor fall from the table by increasing the length of the table. It is. A turning table defined in claim 4 may be used, or an embodiment in which mounting means that can be raised and lowered is simply provided. It is sufficient that the tatami floor can be held so that the tatami floor can be positioned by the table and the placing means when the tatami floor is positioned, and can be retracted when the tatami floor is folded.

The tatami floor may be fixed only by pressing the floor end, or may be fixed by two members, the floor end pressing and the floor pressing. By using two members, it is possible to design a small force for one member used for fixing.

  According to the present invention, the position of the tatami floor is held only by the tatami floor holding means, the above placing means is retracted, the tatami floor is folded by the tatami floor folding means, and the tatami surface near the center in the tatami floor width direction is loosened. The tatami floor and the tatami table are placed on the above table with the floor end press or the floor end press and the floor press after the loose tatami table is tensioned and the tatami table is not slackened or the tatami table is tensioned. Since the tatami mat is folded and pasted to the side of the tatami floor and the back of the tatami floor after being fixed on the top, the rimless tatami mat can be manufactured without the slack or fluffiness of the tatami mat.

Since the present invention also has a mechanism that can easily determine the degree of folding of the tatami floor, it is possible to manufacture an edgeless tatami using various tatami floors with high work efficiency.

It is a front view of the tatami surface folding machine for edgeless mats of the present invention. It is a side view of the tatami mat folding machine for edgeless mats of the present invention. It is a top view of the tatami surface folding machine for edgeless mats of the present invention. It is a figure explaining positioning of a tatami floor in the process of manufacturing edgeless tatami. It is a figure explaining fixation of a tatami floor in the process of manufacturing edgeless tatami. It is a figure explaining the process of bend | folding a tatami surface upwards in the process of manufacturing edgeless tatami. It is a figure explaining the process of apply | coating an adhesive agent to the side surface of a tatami floor in the process of manufacturing edgeless tatami. It is a figure explaining the process of sticking a tatami mat on the side of a tatami floor in the process of manufacturing a marginless tatami. It is a figure explaining the finishing state of one side of a tatami floor in the process of manufacturing edgeless tatami. It is a figure explaining positioning of a tatami floor in the process of manufacturing edgeless tatami. It is a figure explaining fixation of a tatami floor in the process of manufacturing edgeless tatami. It is a figure explaining the state which turns a turning table below in the process of manufacturing edgeless tatami. It is a figure explaining the bending state of a tatami floor in the process of manufacturing edgeless tatami. It is a figure explaining the state which fixes a tatami floor with a tatami floor holding | maintenance apparatus in the process of manufacturing edgeless tatami. It is a figure explaining the operation | work which eliminates the slack of a tatami surface in the process of manufacturing edgeless tatami. It is a figure explaining an example of the tool used for the operation | work which eliminates the slack of a tatami surface in the process of manufacturing edgeless tatami.

  The whole structure of the tatami mat folding machine for edgeless mats of the present invention is shown in FIGS. 1 is a front view, FIG. 2 is a side view, and FIG. 3 is a plan view.

  As shown in FIG. 1 to FIG. 3, the tatami mat folding machine 1 for rimless tatami mats is a table 2 on which a tatami floor to which a tatami mat on the heel side is fixed is placed, and a floor that presses an end of the tatami floor on the table 2. An end presser 3 and a floor presser 4 for fixing the tatami floor are provided so as to be movable up and down. The floor end presser 3 is also provided with a tatami floor holding device 31. The floor presser 4 is lifted and lowered by the cylinders 10 and 10, and the floor end presser 3 is lifted and lowered by the cylinders 11 and 11. The floor end presser 3 is provided with a tatami floor holding device 31. The tatami floor holding device 31 can be raised and lowered with respect to the floor end presser 3, but the pressing pressure can be adjusted with a regulator (not shown). The cylinder 32 is always biased downward.

  As disclosed in the side view of FIG. 2, the tatami table A is folded on the left side of FIG. 2 and attached to the side surface of the tatami floor T, or the tatami table A is folded and pasted on the back surface of the tatami floor T. A bending unit 5 is provided. As shown in the plan view of FIG. 3, the folding unit 5 has a length wider than the width of the tatami floor. A heater is installed inside the folding unit 5 to fold the tatami mat A while being heated to a predetermined temperature. The cylinder 5a moves to the side surface of the floor T. In FIG. 2, the drawing is described in a state in which a part of the frame of the machine is cut out in a state where the cylinder 5e can be seen.

  When the length of the tatami mat A is bonded to the back surface of the tatami floor T, the folding unit 5 is adjusted to the folding unit 5 by adjusting the raising / lowering position with the handles 5f and 5f with respect to the thickness of the tatami floor T in the folding plate 5d. On the other hand, the elevating position can be adjusted independently, and the folding plate 5d adjusted in the elevating position is advanced and retracted with respect to the tatami floor T by the cylinders 5e and 5e, and the tatami mat A is bent to the back surface of the tatami floor T. Has been. The bending unit 5 and the bending plate 5d are configured to be moved up and down by the cylinders 5b and 5b and the cylinders 5c and 5c. When the rods of the cylinders 5c and 5c are extended, the upper surface of the bending unit 5 coincides with the surface of the table 2, and the rods of the cylinders 5b and 5b are extended and the bending unit 5 is attached to the side surface of the tatami floor T. To rise. In the state where the cylinders 5 b and 5 b and the rods of the cylinders 5 c and 5 c are stored, the bending unit 5 is in a position to be retracted below the surface of the table 2. Reference numeral 5g denotes a cover for an operator who protects the cylinder 5e and the like to perform work.

  On the right side of FIG. 2, a swivel table 6 and a tatami floor folding device 7 are provided so that the tatami floor T can be folded. The swivel table 6 is swung by a cylinder 6a, and the tatami floor bending apparatus 7 is composed of a tatami floor bending roller 7a, swivel arms 7b and 7b for holding the tatami floor bending roller, and cylinders 7c and 7c which are swivel driving sources. Yes.

  The other end of the wire 9a once fixed to the swivel arm 7b is fixed to the frame of the edgeless tatami surface folding machine 1 via a spring 9b. And the instruction | indication part 9c is provided in the wire 9b, and it is comprised so that the bending degree of the tatami floor T can be visually observed with the memory 9 provided in the flame | frame.

The operation of the edgeless tatami mat folding machine 1 of the present invention will be described.
The laser marker 8 attached to the upper part of the frame of the edgeless tatami mat folding machine 1 irradiates the laser linearly in the width direction of the tatami mat to be folded, and the irradiation position is set to the end position of the tatami floor T. Therefore, the tatami floor T is positioned according to the irradiation laser beam. The rod of the cylinder 5 c is in an extended state, and the upper surface of the bending unit 5 coincides with the surface of the table 2. The tatami floor T is placed on the table 2 and the turntable 6. (See Figure 4)

  When the positioning of the tatami floor T is completed, an operation signal or a foot switch (not shown) is turned on to send an operation signal to a control device programmed in advance for the operation of the machine. Then, the cylinder 10 is driven and lowered to fix the tatami floor T. (Refer to FIG. 5) When the floor end presser 3 is lowered to fix the tatami floor T, the tatami floor holding device 31 that is always urged downward by the cylinder 32 is also pressured by a regulator (not shown). Pressing in an adjusted state.

  When fixing of the tatami floor T is completed, an operation switch or a foot switch (not shown) is turned on (this operation signal may be only the first operation signal which may be omitted), and the tatami mat folding unit 5 is driven to the cylinder 5b. Stop in the raised state. The tatami mat A is in a state of being folded upward by the folding unit 5 with a built-in heater and heated to a predetermined temperature. (See Figure 6)

  In the case of a tatami surface that is difficult to bend, it is preferable that an operator puts a crease before raising the folding unit 5. Since the tatami mat is heated by a heater (not shown), the tatami mat A is more easily creased than normal temperature.

  Next, in order to apply the adhesive, only the floor end presser 3 is turned on by operating an operation switch or a foot switch (not shown) to drive the cylinders 11 and 11 upward. Then, in a state where the tatami mat A is folded upward, the operator applies an adhesive to all the portions of the side surface of the tatami floor T where the tatami mat A is attached. (See Figure 7)

  When the application of the adhesive is completed, a cylinder 5a is driven by turning on an operation switch or a foot switch (not shown) to move the tatami mat folding unit 5 toward the tatami floor T, and the tatami mat with the adhesive applied to the tatami mat A. Press against the side of the floor T. (See FIG. 8) The tatami mat A is attached to the side surface of the tatami floor T by holding the state of FIG. 8 for a predetermined time.

  In the above description, the application of the adhesive is described as working in FIG. 7 because the adhesive uses a hot-melt type adhesive so as to avoid a decrease in the temperature of the adhesive in the applied state. Yes, it is possible to apply the adhesive to the side surface of the tatami floor T in the state of FIG. 5 and operate FIGS. 6 to 8 in a short time.

  When the tatami mat A is pasted on the side surface of the tatami floor T, a cloth tape or the like is pasted from the end of the tatami mat table A located on the side surface of the tatami mat T to the back surface of the tatami mat T, as shown in FIG. Finish.

  When the pasting of the tatami table A on one side is completed, the tatami floor on the table 2 is rotated 180 degrees so that the side on which the pasting of the tatami table A is not completed is positioned on the folding unit 5 side, as in FIG. As shown in FIG. 10, the tatami floor T is positioned according to the laser irradiation line of the laser marker 8.

  When positioning of the tatami floor T is completed as in FIG. 5, an operation signal or a foot switch (not shown) is turned on to send an operation signal to a control device in which the machine operation is programmed in advance. The holding device 31 and the floor presser 4 are lowered to fix the tatami floor T. (See Figure 11)

  When the fixing of the tatami floor T is completed, the cylinder 6a is driven as shown in FIG. 12, and the turning table 6 is turned obliquely downward. In this state, driving the cylinders 7c, 7c causes the tatami floor T to be bent as shown in FIG. 13 by pressing the vicinity of the right end of the tatami floor T with the tatami floor bending roller 7a. Since the cylinders 7c and 7c are driven only while a folding switch (not shown) is being pressed, the operator can arbitrarily adjust the folding level of the tatami floor T by pressing the folding switch. Of course, although not shown, it is preferable to provide a folding back switch so that the degree of folding can be restored when the tatami floor T is bent too much.

  At this time, the operator can determine how much the tatami floor T is bent by the instruction unit 9c and the memory 9 provided on the wire 9a once attached to the turning arm 7b. Even if the type of the tatami floor changes using the memory 9 as a guide, the degree of bending of the tatami floor T can be stably performed. Further, an embodiment may be adopted in which a memory for determining how much the turning arm 7b is turning is provided in the vicinity of the turning arm 7b.

  When the operator completes folding the tatami floor T at an arbitrary angle, the tatami floor is in contact with the tatami floor T at the end of the tatami floor T that is in contact with the table 2 and the tatami floor bending roller 7a. However, since the tatami floor T is bent so that the side with the tatami mat A is concave in the middle of the two points in contact with each other, the tatami mat A is in a relaxed state as shown in the figure. It is in a state away from T. (See Figure 13)

  By turning on an operation switch or a foot switch (not shown) while the tatami mat A is loose, the floor end presser 3 is slightly raised, and at the same time, the floor presser 4 is raised. Since the tatami floor holding device 31 is always urged downward by the cylinder 32 even if the floor end presser 3 is slightly raised, the tatami floor T is fixed by a plurality of fixed needles 31 a provided on the tatami floor holding device 31. Is held so as not to be displaced in the left-right direction in FIG. (See FIG. 14) Since the cylinder 32 for lowering the tatami floor holding device 31 is always kept in an air pressure state, the fixed needle 31a is kept at a constant pressure even if the floor end presser 3 is slightly raised. The state in which T is inserted and fixed is maintained. At this time, the bending unit 5 descends below the surface of the table 2 with the cylinders 5b, 5b and the rods of the cylinders 5c, 5c stored.

  The cylinder 32 for fixing the tatami floor holding device 31 is configured such that the pressing force against the tatami floor T can be adjusted by a regulator (not shown), and can be adjusted to an appropriate pressing force depending on the type of the tatami floor.

  In a state where the tatami floor T is held by the tatami floor holding device 31, by pulling the tatami mat A near the center in the width direction of the tatami floor T, the tatami mat A which has been slackened in FIG. Keep it taut. At this time, the operator may pull the tatami mat A by hand, but a tool U for pulling the tatami mat as shown in FIG. 16 may be used.

  The tool U is a tool that pulls the tatami mat A using the handle U1 as a point of action and using a plurality of needles U3 pierced on the tatami mat A on the principle of leverage using the roller U2 that contacts the floor end presser 3 as a fulcrum. The tatami mat T is pulled in the state where the tatami floor T is bent by the tatami floor bending roller 7a, so that the tatami mat A can be surely put in a tensioned state when it is completed as a tatami mat.

  In a state where the tatami mat A is pulled and the slack is removed, or a tension is applied to the tatami mat A with the tool U, an operation switch or a foot switch (not shown) is turned on, and the floor presser 4 and the floor end presser 3 are lowered, and the tatami mat A Is firmly fixed in a tensioned state, and the tatami mat fixing process described with reference to FIGS.

  An embodiment in which the tatami mat A is pasted on the back surface of the tatami floor T using the folding plate 5d is also disclosed in Japanese Patent Application Laid-Open No. 2011-12429, and is omitted in this application. Further, instead of the folding unit 5 for folding the tatami mat A, a tatami mat folding mechanism disclosed in Japanese Patent Application Laid-Open No. 2011-12429 may be adopted.

In the present invention, it is desirable that the table 2 be as short as possible with respect to the length of the tatami floor T to be folded in order to fold the tatami floor T by the tatami floor folding means and loosen the tatami mat A. At the table length of about 60% of the length of the tatami floor T, the effect of tensioning the tatami surface by bending was seen. When the length of the table 2 is increased, it is necessary to increase the force for folding the tatami floor T. Also, since the length of the folded portion is shortened, it is necessary to increase the amount of folding to make the tatami table loose. Come out. It is desirable that the length of the table 2, the force for bending the tatami floor T, and the pressing force applied to the floor end presser 3 and the like are appropriately designed so that a large thrust is not required.

A tatami mat T tatami floor U tool 1 edgeless tatami mat folding machine 2 table 3 floor edge holder 4 floor retainer 5 tatami mat folding unit 5a cylinder 5b cylinder 5c cylinder 5d folding plate 5e cylinder 5f handle 5g cover 6 swivel table 6a cylinder 7 tatami Floor folding device 7a Tatami floor bending roller 7b Swivel arm 7c Cylinder 8 Laser marker 9 Memory 9a Wire 9b Spring 9c Pointer 10 Cylinder 11 Cylinder 31 Tatami floor holding device 31a Fixed needle 32 Cylinder

Claims (6)

A tatami surface folding machine for producing edgeless tatami mats,
A table on which the tatami floor end that folds the tatami mat is placed;
A floor end presser provided above the table;
Tatami floor holding means for holding the protrusions in contact with and holding the tatami floor provided on the floor end presser,
A tatami floor folding means for folding the tatami floor in contact with the vicinity of the end of the tatami floor different from the end located on the table;
Opposing to the tatami floor placed on the table, comprising means for folding and pressing the tatami mat on the side of the tatami floor and means for folding and pressing the tatami mat on the back of the tatami floor,
With the tatami floor holding means alone holding the position of the tatami floor, the tatami floor folding means is used to fold the tatami floor and loosen the tatami mat near the center of the tatami floor width direction. After the tension is applied and the slack is removed or the tatami mat is kept in tension, the floor end presser is lowered to fix the tatami floor and the tatami mat on the table. A tatami mat folding machine for edgeless tatami mats, which folds and attaches a tatami mat to the back.   2. The edgeless tatami mat according to claim 1, wherein the protrusions of the tatami floor holding means are a plurality of tatami floor holding needles that hold the tatami floor so that the tatami floor is not moved by being inserted into the tatami floor. Tatami folding machine.   The tatami floor placing means that is located on the side of the table on which the tatami floor end is placed and retracts to a position that does not interfere with the folding of the tatami floor when folding the tatami floor with the tatami floor folding means for folding the tatami floor. The tatami mat folding machine for edgeless tatami mats according to claim 1 or 2, characterized by comprising:   4. The edgeless tatami mat according to claim 3, wherein the tatami floor placing means is a swivel table provided on the side of the table so that the upper surface of the table can be swung downward from a state in which the upper surface coincides with the upper surface of the table. Tatami folding machine. The tatami mat folding machine for edgeless tatami mats according to any one of claims 1 to 4, further comprising a floor presser on the side of the tatami floor center side of the floor end presser.   The tatami mat folding machine for edgeless tatami mats according to any one of claims 1 to 5, further comprising a discriminating means or a memory for discriminating the degree of folding of the tatami floor by the tatami floor folding means.

Images