JP4604255B2 - Tatami folding machine for edgeless mat - Google Patents

Description

[0001]
[Industrial application fields]
The present invention is used in the field of tatami mat manufacturing. Specifically, it is used for the process of bending an edgeless tatami mat along the edge of the long side of the tatami floor.
[0002]
[Prior art]
In general, rimless tatami mats are less in quantity than rimmed tatami mats because of their particularity, and even in the technology required for their production, the mechanization and labor saving of work are delayed compared to those of rimmed tatami mats. On the other hand, in the case of rimless tatami mats, when tatami mats are stretched on the tatami floor, the tatami mats are folded at right angles to the direction of the weaving of the tatami (the direction of the weeds) along the tatami mat's longitudinal direction. Compared to folding in parallel, it tends to be difficult to crease and round corners. For this reason, sometimes a bulge appears on the tatami mat after the tatami mat is folded, and it is necessary to correct this. (See Fig. 1 (c))
[0003]
Conventional work will be described. Place the finished tatami mat on the table with the top of the tatami mat face down. Adjust while pulling the tatami mat by hand over the entire length so that the eyes of the tatami mat are parallel to the end of the tatami floor.
[0004]
A crease streak is created by running a thousand sheets on the tatami surface along the edge of the tatami floor. (Fig. 1 (a))
[0005]
Moisture is added to the part to be folded over the entire length of the tatami mat surface to be folded, or high-temperature steam is blown using a hand-held nozzle. Alternatively, a highly permeable surfactant or the like is applied. By doing so, the tatami surface becomes soft and it is easy to bend, and at the same time, it has the effect of reducing the return after bending.
[0006]
The corner of the tatami mat at the corner of the tatami corner is manually stopped. Specifically, the tatami mat at the corner is folded and the tatami floor and the tatami mat are fixed with a tucker or the like.
[0007]
Next, the tatami mat is folded while being pressed against the side edge of the floor. The length that can be bent at one time is slightly longer than that of the palm, and it is necessary to repeat this operation many times in order to bend the entire length in order from the end. (FIG. 1 (b)) The bent portions are temporarily fixed at appropriate intervals with a thick waiting needle, a thousand-thick thread, or the like. When the folding of the full length is finished, the certainty of the folding state is checked, and for the loose part, the front and rear temporary fixings are once released and then bent again to perform temporary fixing. After that, the tatami mat and the floor are fixed with staples, and finally, they are sewn. Sometimes sewn after tucking. This is the end of the side bending process.
[0008]
The other side folding operation itself is the same as the above-described procedure. However, when the first side is folded, loosening may occur along the tatami floor side end, and the tatami surface may be swollen over the entire length. (FIG. 1 (c)) Before folding the other side, in order to eliminate the swelling of the tatami mat, the tatami mat at one end, which is strongly pulled over the entire length, was bent and fixed to the tatami floor.
[0009]
[Problems to be solved by the invention]
Since a series of operations are manual operations, it takes time, and there is a case where the tatami surface is swollen (the tatami surface is lifted from the floor) because the folds are not sufficiently attached at the time of folding and the looseness comes out. In addition, the bent part is not exactly fixed and looks rounded and the appearance is not good. Another problem is that it takes time to carry out the return work for this correction and is wasteful.
[0010]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, a series of folding work of a tatami table of an edgeless tatami mat is mechanized, and further, the operation of the machine is automated to improve the working efficiency, and the bending accuracy is improved to improve the folding part. There is a need for measures to prevent the occurrence of roundness and looseness of tatami mats.
[0011]
In order to embody the above-mentioned necessary means, the invention according to claim 1 is to place a tatami mat that has been sewed on the table with the tatami table facing downward, and the tatami presser means and the tatami table folding folding presser are lowered. After fixing both sides of the tatami width, the floor pushing means pushes and bends the tatami floor in the reverse direction (upward on the table) over the entire length of the tatami width. Because the tatami floor is pasted with the tatami floor bent by this push-bending operation, when the tatami mat is finished as a product, that is, when the tatami floor bend is returned straight, the tatami mat surface will be subject to pulling and may swell without loosening. There is no.
[0012]
Next, the folding positioning means descends, temporarily stops at a position of about several mm on the table, holds the protruding portion of the tatami surface until it pulls until the side of the tatami floor contacts the folding plate, and then lowers the folding positioning plate again. And press the tatami mat.
[0013]
After the tatami pressing means is lowered to fix the tatami, the tatami pressing means, the folding positioning plate, and the table are lowered by a distance corresponding to the thickness of the tatami. At the time of the lowering, the tatami table protruding from the bottom of the positioning plate is bent at the upper corner of the tatami by a fixed folding plate having a length substantially the same as the table provided in parallel with the side edge of the tatami. It is pressed flat against the side of the tatami floor. This action eliminates the roundness and swelling of the tatami mat on the side of the tatami floor. When the table has been lowered, the upper end of the folding plate and the floor surface of the tatami are at the same height.
[0014]
Next, the tatami mat is continuously folded at the lower corner of the tatami mat. A folding plate of approximately the same length as the table is rotated by the support arms at both ends of the folding plate about the rotation axis at the lower end of the support arm, and the folding plate rotates to the tatami side at a reference level height. It is a device that moves, folds the tatami surface at the lower corner of the tatami floor and pushes it further to the back of the tatami floor.
[0015]
In the invention according to claim 2, the folding positioning plate is lowered to set the folding position of the tatami table, and after the tatami table is folded by another means, the tatami presser and the table are lowered, Just before folding begins, only the folding positioning plate is raised. The positioning plate rises when the upper corner of the tatami table is bent, and if there is a positioning plate between the side edge of the tatami floor and the tatami surface, a gap corresponding to the thickness of the positioning plate is created. is there. As a result, the tatami table is bent in close contact with the side edge of the tatami floor without causing a gap (equivalent to the thickness of the folding positioning plate) between the tatami table and the floor side end, so that the tatami table is not loosened or swollen when finished. It can be prevented.
[0016]
The invention according to claim 3 relates to a lateral pushing means for pushing the side surface of the tatami when the tatami table is bent at the lower corner of the tatami. The means extends over the entire length of the tatami mat (that is, a single member may be arranged so as to extend over the entire length of the tatami mat, or a plurality of tatami mats may be located). An air cylinder is provided at both ends in the longitudinal direction, disposed below the lower corner folding plate and disposed at a position in contact with the lower corner of the tatami side surface. The other end of the air cylinder is fixed to the support member of the folding plate, and the entire lateral pushing means is arranged below the tatami surface folding plate. By rotating the support arms at both ends of the folding plate for the lower corner of the tatami, it abuts the side surface of the tatami, and the side of the tatami is pushed across the entire length of the tatami so that the tatami surface of the tatami is not swollen. This increases the bending accuracy of the lower corner.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
The structure of the edgeless tatami surface folding machine 1 of the present invention will be described with reference to FIGS. The tatami mats that have been sewn are placed with the tatami mat A facing down, and a plurality of bar rollers 5 arranged in parallel to move to a predetermined position in the length direction of the tatami mat, and the tatami width serving as a roller. a vertically movable floor bend 10 in the center for folding a tatami floor, and the floor-bending tatami presser 11 preventing movement by Rukoto pressing near width edge of Tatamiyuka during floor bend, rod roller 5 via a bearing The supporting table 6, the positioning plate 2 that can be moved up and down to determine the folding position of the tatami surface, the tatami presser 3 that can be moved up and down to fix and hold the tatami after the folding position is determined, When the air cylinder 21 is pushed, the air cylinder 21 descends while supporting the table 6 by the stroke, and the stroke of the air cylinder 21 is a means for uniformly lowering the entire table by the stroke of the air cylinder 21. When the link 23, the connecting rods 24, 25, and the tatami mat and the table 6 are transmitted to the other supporting positions, the tatami mat and the table 6 are arranged in parallel to the surface of the positioning plate 2, and the tatami mat table A is bent at the upper corner of the tatami mat. As a means of horizontally folding the folding plate 7 and the tatami mat A at the lower corner of the tatami mat, the tatami mat A is pressed against the back of the tatami floor B (the upper surface in FIG. 2) A folding plate 8, a tatami surface lateral push 12 that pushes the side of the tatami under the folding plate 8, air cylinders 13 to 21 as a driving source for the above means, an operation instruction foot switch 30, and an initial setting The edgeless tatami surface folding machine 1 of the present invention is configured by the operation panel 32 or the like.
[0018]
The procedure of the operation in which the machine of the present invention configured as described above folds the edgeless tatami mat A is as follows.
[0019]
Before setting the machine of the present invention, the tatami mat A is cut to a predetermined width. Cut out the four corners of the tatami floor B (see the corners of the tatami floor B in FIG. 6) so that the corners do not bulge out by folding the tatami table. In the case of a resin table, it is necessary to make preparations such as crease the folding part of the tatami table A. Also, as preparation on the machine side, clean air is connected from a compressor (not shown) and the power is turned on.
[0020]
Step 1: With the tatami mat A facing down, one side of the bent part of the tatami mat A is on the front side of the machine 1 (left side in FIG. 2), and is placed on the roller 5 and folded from the side (left side or right side in FIG. 3). And move it to the center of the machine until the side of the tatami floor B is close to the edge of the table 6 (left side in FIG. 2).
[0021]
Step 2: When the foot switch 30 is stepped on, the tatami presser 3 and the tatami presser 11 for bending the floor are lowered, and after the cylinders 14 and 18 detect the tatami floor B, the solenoid valve (not shown) is switched and slightly raised. Leave a slight gap between After rising, the solenoid valve is closed and the cylinders 14 and 18 are held in that position. The cylinders 14 and 18 are lifted slightly so that the side of the tatami floor B is not restrained when the floor is bent so that the tatami floor can move in the horizontal direction and the floor can be bent smoothly. Thus, when the tatami floor B is drawn until it comes into contact with the positioning plate 2, consideration is given so that the work can be performed smoothly.
[0022]
Step 3: When the hand valve (not shown) is turned, the floor bending 10 rises and the tatami floor B is bent upward. (See Figure 4)
[0023]
Step 4: When the positioning plate lowering buttons (not shown) on both sides of the operation panel 32 are continuously pressed with both hands, the air cylinder 16 operates, the positioning plate 2 starts to descend, and continues to descend further to support the positioning plate 2. A bearing (not shown) at the end of the member comes into contact with the positioning lower limit adjustment 22 and stops on about 7 mm of the tatami table A of the bent portion on the table 6. The reason why the positioning plate lowering button is pushed with both hands and the positioning plate 2 is stopped about 7 mm above the tatami mat A is to prevent the operator's hand from being pinched between the positioning plate and the tatami mat.
[0024]
Step 5: Take the bent portion of the tatami mat A until the end of the tatami floor B comes into contact with the positioning plate 2 and pull it forward. When the foot switch 30 is depressed, the air cylinder 17 operates and the positioning plate lower limit adjustment 22 retracts. As shown in FIG. 5, the positioning plate 2 further descends and presses the tatami mat A. Thereafter, in the case of a synthetic resin tatami mat, the mat is warmed with a manual heat gun (not shown) until the tatami mat A becomes soft.
[0025]
Step 6: When the foot switch 30 is stepped on, the tatami presser 3 is lowered. When the tatami presser 3 is lowered even after coming into contact with the back surface of the tatami floor B, the tatami mat and the table 6 are also lowered integrally, and in this process, the side surface of the tatami mat passes up and down with the folding plate 7 as shown in FIG. The tatami mat A is bent along the tatami floor B. Here, the positioning plate 2 rises immediately before the tatami surface is bent and returns to the standby position.
[0026]
The timing of the rise of the positioning plate 2 faster than bending the tatami facing A, i.e. when the table 6 is lowered, the positioning plate 2 is lowered at the same time, especially in Tsu good fast positioning plate 2 from falling completion of table 6 is raised The gap between the side surface of the tatami floor B and the tatami surface A is eliminated, and the looseness corresponding to the thickness of the positioning plate 2 can be eliminated.
[0027]
Step 7: When the foot switch 30 is stepped on, the folding plate 8 is operated by the air cylinder 20, and the tatami mat A is folded at the lower corner of the tatami mat as shown in FIG. At the same time, the air cylinder 15 is actuated, and the tatami surface side press 12 presses the tatami side surface near the lower corner of the tatami side surface in the lateral direction through the folding plate 7. As a result, the tatami surface does not loosen at the lower corner, and the corner is bent with a corner. (See Figure 9)
[0028]
Step 8: The folded tatami mat A is fixed to the back of the tatami floor B with a tucker (not shown) or the like at appropriate intervals over the entire length of the tatami mat.
[0029]
Step 9: When the foot switch 30 is stepped on, the bent plate 8 moves backward.
[0030]
Step 10: When the foot switch 30 is stepped on, the tatami presser 3 is raised.
[0031]
With the above operation, the folding of one of the tatami mats A ends. By reversing the tatami and folding the other side in the same procedure from step 1 above, all the folding of the edgeless tatami mat A is completed. In the case of a thin tatami floor, there is not enough space to fix the tatami mat on the side of the tatami floor with a tucker, so it is folded to the back of the tatami floor and secured with a tucker. In the case of a normal tatami floor, it is thicker than a thin tatami floor, and it is not necessary to bend the tatami table A to the back of the tatami floor B because the tatami mat A can be secured to the side of the tatami floor B with a tucker. It can be folded in the same procedure as folding a tatami mat.
[0032]
【The invention's effect】
As is clear from the description based on the above embodiment, according to the tatami mat folding machine 1 for edgeless tatami mats according to the present invention, human work is not performed until the folding of the tatami mat A is finished after the tatami is set to the machine 1. It is only necessary to step on the switch 30 and it is possible not only to fold the tatami table A reliably in a short time, but also to swell the tatami table for each process such as floor bending, rising of the positioning plate before bending, side pushing of the tatami table. And the roundness of the sides is prevented before the finish accuracy is improved. Furthermore, the operation of the machine is simple and does not require any skill, and the work for returning is eliminated and the workability can be improved.
[Brief description of the drawings]
FIG. 1 is a diagram for explaining a conventional folding operation of a tatami mat for edgeless tatami mats. FIG. 2 is an overall view (side view) of a tatami table folding machine for edgeless tatami mats of the present invention.
FIG. 3 is an overall view (front view) of an edgeless tatami surface folding machine according to the present invention.
FIG. 4 is a diagram (side view) illustrating a bending state of a tatami floor
FIG. 5 is a diagram (side view) illustrating a state where the positioning plate is lowered.
FIG. 6 is a diagram of a situation where the tatami surface is softened by spraying steam. FIG. 7 is a diagram for explaining the operation of the folding plate 1 (side view).
FIG. 8 is a diagram for explaining the operation of the bent plate 2 (side view).
FIG. 9 is a diagram for explaining a side-by-side tatami table press state.
A Tatami mat B Tatami floor 1 Machine 2 of the present invention Positioning plate 3 Tatami press 5 Roller 6 Table 7 Bending plate 8 Bending plate 9 Arm 10 Floor bending 11 Tatami tatami presser 12 Tatami table horizontal pressing 13-21 Air cylinder 22 Positioning plate Lower limit adjustment 23 Link 24 Connecting rod 25 Connecting rod 26 Frame 30 Foot switch 32 Operation panel 39 units

Claims (3)

In the edgeless tatami mat manufacturing process, in order to fold 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 are pressed. It means holding tatami prevent movement by the floor bending machine the back side of the tatami bed bent so that protruding in the width center of the mat, and vertically movable positioning means for determining a folding position of the tatami facing, the table is lowered 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 means for folding the tatami mat along the lower corner of the long side of the tatami floor. Tatami folding machine. 2. The lowering of the positioning means for determining the folding position of the tatami table is lowered to the surface of the tatami table, and when the table is lowered, the positioning means is simultaneously lowered, and the positioning means is raised earlier than the completion of the table lowering. Tatami folding machine for tatami mats. The tatami mat folding machine for edgeless tatami mats according to claim 1, further comprising means for laterally pushing the tatami mat over the entire length of the side surface of the tatami mat.

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