JP2002369987A - End processing method and processing apparatus for tatami edge material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To avoid manual cutting work so as to completely perform automatic line work by cutting edge cloth and edge lower paper respectively to a designated length by one cutting operation in processing the edge cloth and the edge lower part sewn flat to the edge of a tatami. SOLUTION: This end processing apparatus for a tatami edge material is provided with a clamping means 30 for clamping the wide edge cloth 2 and the narrow edge lower paper 3 superposed and sewn along the side edge part of the tatami 1, a driving means 40 for operating the clamping means 30 to let out only the edge cloth 2 and a cutting means 50 for cutting the edge cloth 2 and the edge lower paper 3. The edge cloth 2 and the edge lower paper 3 are cut with the cloth 2 being drawn longer than the paper 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for processing an edge portion of an edge material such as an edge cloth and an edge paper sewn along an edge of a tatami mat.

[0002]

2. Description of the Related Art Generally, an edge material sewn along an edge of a tatami is, as shown in FIG. 3 is folded outward, and the side edges 5 of the tatami 1 are wrapped around and sewn together on the lower surface side.
Has been produced by folding the edge cloth 2 along the corners 4 and stapling them to the tatami 1. By the way, the edge cloth 2 and the lower edge paper 3 after stabbing along the side edge 5 of the tatami 1
In the case of processing the edge portion, the edge cloth 2 needs to be folded at the corner 4 of the tatami 1, whereas the cardboard bottom edge paper 3 only adjusts the shape of the tatami mat, A length like 2 is not required. Therefore, in the related art, when the edge cloth 2 and the lower edge paper 3 are stabbed along the side edge portion 5 of the tatami 1, the edge cloth 2 and the lower edge paper 3 protruding from the end of the tatami 1 are machined. The lower edge paper 3 was manually cut shorter than the edge cloth 2 so as not to hinder the folding process at the corners 4 of the tatami 1. For example, Japanese Patent Laid-Open No. 2000-70576 discloses this type of tatami sewing apparatus.

[0003]

However, in the above-mentioned conventional tatami sewing apparatus, after cutting the edge cloth 2 and the edge paper 3 to the same length, only the edge paper 3 is further edged. Since it must be cut again shorter than the cloth 2, it is troublesome, wastes material, and hinders complete automation of the line.

[0004] Therefore, an object of the present invention is to treat the edge cloth and the edge paper with a single cutting operation when processing the edge of the edge cloth and the edge paper that are stabbed along the edge of the tatami. An object of the present invention is to provide a method and an apparatus for processing an end portion of a tatami edge material that can be cut to a predetermined length, thereby avoiding a manual cutting operation and enabling complete automation of a line.

[0005]

According to a first aspect of the present invention, there is provided a method of processing an edge portion of a tatami edge material according to the present invention.
A step of sandwiching a first edge material and a second edge material that are overlapped and sewn along the edge of the tatami near an end of the tatami, a step of feeding only the first edge material in a sandwiched state, Cutting the two in a state where the edge material is drawn out longer than the second edge material.

According to the present invention, in the end processing of the first edge material and the second edge material sewn along the edge of the tatami mat, the one edge material is pulled out longer than the other and both are cut off This eliminates the need for a manual cutting process of the rim material as in the prior art, and allows the tatami manufacturing line to be fully automated.

According to a second aspect of the present invention, in the edge treatment method for a tatami edge material according to the first aspect, the first edge material is a wide edge cloth, and the second edge material is a narrow edge paper. is there.

According to a third aspect of the present invention, there is provided a tatami edge material edge processing apparatus, wherein the first tatami edge material is overlapped and sewn along the tatami edge.
Holding means for holding the edge material and the second edge material, driving means for operating the holding means to feed out only the first edge material, first and second
Cutting means for cutting the edge material.

According to the present invention, the first edge member and the second edge member are provided by providing the holding means, the driving means, and the cutting means.
After the edge material is adjusted to an appropriate length, it can be cut automatically.

According to a fourth aspect of the present invention, in the edge processing apparatus of the third aspect, the holding means includes a driving roller and a driven roller, and the first edge material is provided between the driving roller and the driven roller. And to feed out the first edge material by the operation of the drive roller.

According to the present invention, only the first edge member is fed out by operating the drive roller, and the second edge member is kept as it is. As a result, both lengths can be changed.

According to a fifth aspect of the present invention, in the edge treatment device for a tatami edge material according to the fourth aspect, the driving roller is formed of a metal material provided with knurls on its surface, and the driven roller is formed of a rubber material. That is.

According to the present invention, since the driving roller and the driven roller are configured as described above, the first edge member can be smoothly fed.

According to a sixth aspect of the present invention, in the edge processing device for a tatami edge material according to the fourth or fifth aspect, the nipping width of the driving roller is smaller than the nipping width of the driven roller.

According to the present invention, by clamping the driving roller, the clamping of the second edge by the driving roller can be avoided, and only the first edge can be smoothly pulled out when the driving roller is operated. it can.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a method and an apparatus for processing an edge portion of a tatami edge material according to the present invention will be described in detail with reference to the accompanying drawings. Here, FIG. 1 is a front view of the end processing apparatus according to the present invention, FIG. 2 is a side view of the end processing apparatus, FIG. 3 is an enlarged view of the holding means, and FIG. 4 is a perspective view showing an operation state of the holding means. It is.

1 and 2, an end processing apparatus D according to this embodiment is disposed via a bracket 12 at a distal end of a support arm 11 erected on the side of a tatami mat 10. The bracket 12 is provided with a pair of upper and lower guide rails 13a and 13b extending in the horizontal direction, and the base 22 is slidably supported by the guide rails 13a and 13b. A first cylinder device 14 is bridged between the bracket 12 and the base 22, and the first cylinder device 14
Allows the end processing device D to move in the front-rear direction. A second bracket 23 extending in the vertical direction is fixed to the front side of the base 22, and a guide rail 15 extending in the vertical direction is provided on the front surface of the second bracket 23. The guide rail 15 has a second base 24.
Are slidably supported, and the second cylinder device 16 mounted between the second base 24 and the second bracket 23 allows the end processing device D to move in the vertical direction. By such movement in the front-back direction and the up-down direction, the end processing device D can take the operating position and the retreat position. As shown in FIG. 1, in the vicinity of the edge processing device D, the tatami mat 10 is provided with pressing plates 17 and 18 for pressing the upper and lower sides of the tatami 1 respectively. A sewing needle 19 is provided on the upper side. The sewing needle 19 is connected to the upstream feeding portions 20, 21.
This is for flat stabbing with the edge cloth 2 as the first edge material and the lower edge paper 3 as the second edge material pulled out from the stack.

The holding means 3 is provided on the front side of the second base 24.
0 is provided. As shown in detail in FIG. 3, the holding means 30 includes a fixed frame 31 and a movable frame 32 formed in an L-shape. The fixed frame 31 includes a metal driving roller 33 and a movable frame 32. , A rubber driven roller 34 is rotatably supported. As shown in the figure, the driving roller 33 has a pinching width of about 1/3 of the driven roller 34, and a knurl is formed on the surface thereof. The movable frame 32 includes a third cylinder device 35 installed on the upper end of the fixed frame 31.
And the driven roller 34 can be moved closer to or farther from the driving roller 33. The movable frame 32 moves up to a position where the driven roller 34 comes into contact with the drive roller 33 with respect to the fixed frame 31. At this time, the front frame portion 36 supporting the rotation axis of the drive roller 33 on the front side is provided. And the driven roller 34 does not contact, but a slight gap 37 is formed therebetween. The stability when the movable frame 32 moves is
It is secured by a guide rail 38 provided on the fixed frame 31 and a guide portion 39 provided on the movable frame 32.

The driving roller 33 is provided with the holding means 30.
, And is rotated by the driving means 40 installed in the frames 31 and 32. The driving means 40 is provided with the fixed frame 31
, And large and small pulleys 42, 43 attached to the drive shaft of the air actuator 41 and the rotation shaft of the drive roller 33, respectively.
And a drive belt 44 stretched between the pulleys 42 and 43. The drive belt 44 is driven by sending compressed air from an air supply source (not shown) to the air actuator 41.

FIG. 4 shows a state in which the edge cloth 2 and the under-edge paper 3 are sandwiched between the driving roller 33 and the driven roller 34. As shown in this figure, the wide edge cloth 2 and the narrow edge paper 3 stabbed along the side edge 5 of the tatami 1 are pinched by the pinching means 30 in the vicinity of the end of the tatami 1. Is done. At this time, the overlapping portion of the edge cloth 2 and the lower margin paper 3 is sandwiched between the driven roller 34 and the leading end frame portion 36 of the fixed frame 31, and the driving roller 33 and the driven roller 34 Sandwiched between. Therefore, when the drive roller 33 is rotated in this state,
Only the edge cloth 2 sandwiched between the driving roller 33 and the driven roller 34 is sent out. However, the marginal paper 3 is sent out only by slipping between the edge cloth 2 and the edge cloth 2 at the position of the leading end frame portion 36. And keep the initial clamping state.
As a result, as shown in FIG. 4, a desired slack portion 45 can be formed only in the edge cloth 2.

As shown in FIGS. 1 and 2, a cutting means 50 is provided near the holding means 30. As shown in detail in FIG. 5, the cutting means 50 includes a fixed blade 51 and a movable blade 52 rotatably supported at the rear end thereof. The tip of the rod 55 of the fourth cylinder device 54 is attached to the tip of. Therefore, by moving the rod 55 up and down by driving the fourth cylinder device 54, the movable blade 52 is rotated, closed between the movable blade 52 and the fixed blade 51, and cuts the edge cloth 2 and the lower edge paper 3 together. . This cutting means 50
Is provided adjacent to the downstream side of the holding means 30 as shown in FIG. 1, and cuts the edge cloth 2 and the lower margin paper 3 immediately beside the holding means 30.

Next, an edge processing method for the tatami edge material using the edge processing apparatus D having the above configuration will be described with reference to FIGS. 6 shows a preparation process before stabbing the edge cloth 2 and the lower edge paper 3, FIG. 7 shows a main stitching step to stab the edge cloth 2 and the lower edge paper 3, and FIG. The post-processing steps after the paper 3 is stabbed are shown. In FIG.
First, as shown in FIG.
0 moves to the retreat position with the edge cloth 2 and the lower edge paper 3 sandwiched therebetween, and the tatami 1 placed on the tatami table 10 advances to the back sewing position. In this case, the cutting means 50
The fixed blade 51 and the movable blade 52 are open. Then
As shown in (b), when the edge processing device D moves to the operating position, the holding means 30 is lowered to a predetermined position, and the edge cloth 2 and the lower edge paper 3 come into contact with the upper surface of the tatami 1 in an overlapping state.
Next, as shown in (c), the driving roller 33 is rotated by the operation of the driving means, and only the edge cloth 2 is sent out with the driven roller 34.

In the next lockstitching step, as shown in FIG. 7 (d), the tatami 1 is moved up and down
Press at 7, 18. Next, as shown in (e), the clamp by the holding means 30 is released and the end processing device D is retracted, and at the same time, the tatami 1 is moved back to the upstream side to perform reverse sewing. After the reverse stitching, the tatami mats are again folded as shown in FIG.
Is moved downstream, and the edge cloth 2 and the lower margin paper 3 are stabbed along the side edge of the tatami 1 to the rear end of the tatami 1. After flat stabbing to the rear end of the tatami 1, the tatami 1 is returned to the upstream side again and reverse sewn as shown in FIG.

In the final post-processing step, first, as shown in FIG. 8 (h), the tatami 1 is moved to the cutting position on the downstream side, and then the end processing device D is slid forward and downward to the operating position. Move up to. Next, as shown in (i), the sandwiching means 30 is driven to sandwich the edge cloth 2 and the lower margin paper 3 between the driving roller 33 and the driven roller 34. Further, as shown in (j), the drive roller 33 is driven to draw out only the edging cloth 2, and the slack portion 45 is drawn out to a predetermined length. Then, as shown in (k), when the edge cloth 2 is drawn out to a predetermined length, the cutting means 50 cuts the edge cloth 2 and the lower edge paper 3 at the same time. Therefore, tatami 1
Both the front end and the rear end are transported to the next step in a state where the edge cloth 2 is longer than the lower edge paper 3. By retracting the edge processing device D, the state returns to the state of FIG. 6A again, and the same steps as described above are repeated for the next tatami mat.

As shown in FIG. 9, the length of the edge cloth 2 cut above is a length that is just right for covering the front corner and the rear corner of the tatami 1 so as to cover it. The length of the lower edge paper 3 is a short length that does not hinder the folding of the edge cloth 2. Therefore, unlike the related art, the labor for manually cutting the margin cloth 2 and the margin paper 3 can be omitted, and the margin cloth 2 and the margin paper 3 are not wasted.

[0026]

As described above, according to the method for processing the edge of a tatami mat according to the present invention, each end of the first rim and the second rim sewn along the edge of the tatami mat. When processing the part, the first edge material can be cut out in a state where the first edge material is drawn out longer than the second edge material, so that the edge material is manually cut to an appropriate length as in the related art. Is not required, and the tatami manufacturing line can be completely automated.

According to the tatami edge material processing apparatus according to the present invention, the clamping means for clamping the first edge material and the second edge material sewn along the edge of the tatami mat, and the clamping means are operated. And a cutting means for cutting out the first and second edge materials, so that the first edge material and the second edge material at the end of the tatami edge material are provided. The length adjustment and the cutting process are performed automatically.

[Brief description of the drawings]

FIG. 1 is a front view of an edge processing apparatus according to the present invention.

FIG. 2 is a side view of the edge processing device.

FIG. 3 is an enlarged view of a holding means.

FIG. 4 is a perspective view showing an operation state of the holding means.

FIG. 5 is an enlarged view of a cutting means.

FIG. 6 is a view showing a first step of a method of treating an edge of a tatami edge according to the present invention.

FIG. 7 is a view showing a lockstitching step of the end processing method.

FIG. 8 is a view showing a latter step of the edge processing method.

FIG. 9 is a view showing general processing steps of a tatami edge.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tatami mat 2 Edge cloth (1st edge material) 3 Under-edge paper (2nd edge material) 30 Nipping means 33 Drive roller 34 Follower roller 40 Drive means 50 Cutting means

Claims (6)

[Claims] 1. A step of sandwiching a first edge material and a second edge material which are sewn together along an edge of a tatami mat near an end of the tatami mat, and feeds out only the first edge material in the sandwiched state. A method of treating an edge of a tatami edge material, comprising: a step of cutting the first edge material longer than the second edge material while cutting the two. 2. The method according to claim 1, wherein the first edge material is a wide edge cloth.
2. The method according to claim 1, wherein the edge material is a narrow underlining paper. 3. A sandwiching means for sandwiching a first edge material and a second edge material which are sewn in an overlapping manner along an edge of a tatami mat, and a driving means for operating the sandwiching means to feed out only the first edge material. And a cutting means for cutting the first and second edge materials. 4. The apparatus according to claim 3, wherein said holding means includes a driving roller and a driven roller, and holds the first edge material between the driving roller and the driven roller, and feeds out the first edge material by operation of the driving roller. End treatment device for tatami mat material. 5. The edge treatment device for a tatami edge material according to claim 4, wherein the drive roller is formed of a metal material provided with knurls on its surface, and the driven roller is formed of a rubber material. 6. The tatami edge material edge processing apparatus according to claim 4, wherein a nip width of the driving roller is smaller than a nip width of the driven roller.