JP2000079596A - Automatic mat border sewing device and automatic sewing and cutting device for mat border and base - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture a mat (Japanese tatami) with high accuracy in shape by mounting a color sensor for detecting a reference line of a cutting edge of a mat facing, and properly sewing a mat border to a mat base on a position inside of a cutting edge of the mat facing by a specific length on the basis of the information detected by this sensor. SOLUTION: When a color sensor 27 is moved on a cutting line (s) on a mat facing (w1) by the movement of a cutting and sewing head, and detects a color phase (mixture of color phase of mat base (w) and color phase (w1) of mat facing) different from the color phase of an upper surface of the mat base (w), an electronic switch circuit device compares the information detected on this occasion with the information stored in advance, judges the immediate stop of the cutting and sewing head, and transmits the switch output corresponding to the judgement. Whereby the motor stops its motion. The motor is stopped until the color sensor 27 detects the color phase of the upper surface of the mat base (w) or the color phase of the upper surface of the mat facing (w1), and the lateral movement of the cutting and sewing head is stopped.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic cutting and sewing apparatus for a tatami floor edge, an automatic cutting apparatus and an automatic sewing apparatus.

[0002]

2. Description of the Related Art In the manufacture of tatami mats, dimensions of a room are measured in advance, and dimensions of each tatami mat adapted to the distortion shape at the site are determined based on the dimensions. The tatami mat used for each tatami is cut into a certain shape based on the tatami mat, and the cut tatami mat is temporarily fixed on the tatami mat floor.After that, by using an automatic cutting and sewing device, the tatami mat can be cut along the cutting line thereof. At the same time as sewing on the tatami floor, cutting near the cutting line of the tatami floor is performed.

For example, Japanese Utility Model Publication No. 3-44478 and Japanese Utility Model Publication No. 7-22216 exist as the above-mentioned automatic cutting and sewing apparatuses. Each of these apparatuses is a detecting apparatus for detecting the above-mentioned cutting line on a tatami mat. And automatic cutting and sewing are performed based on the detection information of the detection device.

[0004]

In the above-described conventional automatic cutting and sewing apparatus, the cutting and sewing line is accurately positioned on the cutting line due to the unevenness of the height near the cutting line on the tatami surface. Things that don't fit will happen.

The present invention relates to an automatic cutting and sewing apparatus for a tatami floor edge, which is capable of performing cutting and sewing accurately along the cutting line irrespective of the unevenness of the height near the cutting line. Another object of the present invention is to provide an automatic cutting device and an automatic sewing device having the same configuration as a part of the automatic cutting and sewing device.

[0006]

In the automatic cutting and sewing apparatus according to the first invention of the present application, a color sensor for detecting a reference line of a tatami floor edge is provided on the cutting and sewing head, and the detection information of this sensor is used. Based on this configuration, the tatami floor edge is automatically cut or sewn. The color sensor detects the hue near the reference line, and therefore does not emit erroneous information due to the asymmetry in the height of the reference line. Further, since the sensitivity of the color sensor to the color change of the detection target is easily adjusted, the accuracy of the cutting and sewing locus is easily and optimally adjusted.

In the second invention, in addition to the structure of the first invention, a pressing means for pressing the end surface of the tatami floor edge during the movement of the cutting and sewing head is provided. This pressing means exerts this effect in the replacement of the tatami mat on the old tatami floor and in the process of turning over the old tatami mat.

In the automatic cutting apparatus according to the third invention, a color sensor for detecting a reference line of the tatami floor edge is provided in the cutting head, and the tatami floor edge is automatically cut based on the detection information of this sensor. It is configured to operate.

In the automatic sewing apparatus according to the fourth invention, a color sensor for detecting a reference line of the tatami floor edge is provided in the sewing head, and the tatami floor edge is automatically sewn based on the detection information of this sensor. It is configured to operate to wear.

According to a fifth aspect of the invention, in addition to the configuration of the fourth aspect of the invention, there is provided a pressing means for pressing the end surface of the tatami floor edge during the movement of the sewing head. According to this, as in the second invention, this effect is exhibited in the replacement of the tatami mat on the old tatami floor and the turning process of the old tatami mat.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. FIG. 1 is a front view of an automatic cutting and sewing apparatus according to the present invention, and FIG. 2 is a view showing a use state of a part of the apparatus.

In these figures, reference numeral 1 denotes a machine frame which is provided in a fixed length range in a direction perpendicular to the plane of the drawing. A support table 4 of a cutting and sewing head 3 is mounted on an upper surface of the machine frame 1 via rails 2 and 2 so that the support table 4 can be moved by driving means (not shown).

The cutting and sewing head 3 is supported by a guide track 5 provided on a support table 4 so as to be freely slidable in the left-right direction, and is also driven by a motor 6 fixed to the right side of a head frame 3a. The drive displacement in the left-right direction is possible.

A needle up / down drive shaft 8 for vertically displacing the sewing machine needle 7 and a pair of vertical sliding guide shafts 10 and 1 having a tatami press 9 fixed at the lower end are provided at the left overhang portion of the head frame 3a.
0, and a pneumatic cylinder 11 for vertically displacing the tatami press 9 and the like, and a swing arm 13 having a cutting blade 12 fixed to the tip from the left side of the head frame 3a is provided in a vertical direction. The needle vertical drive shaft 8 and the swing arm 13 are linked to drive means (not shown).

The tatami mat 9 will be described below. That is, as shown in FIG. 2, a horizontal substantially rectangular plate 14 having a cutout 14a is a main component, and an upright plate 15 is fixed to the rear end of the square plate 14, and the upright plate 15 is fixed. 15 on the rear side of the roller 16
Is installed.

An upright plate 17 is fixed on the square plate 14 at the front of the left end of the upright plate 15 so as to face the upright plate 15 and a support shaft 18 is provided between the upright plates 15 and 17.
The arm member 20 to which the tatami compression wheel 19 is mounted is urged downward by a spring (not shown) through the support shaft 18 as shown in FIG. It is installed. At the front of the rectangular plate 14, a laterally extending plate 20 fixed to the lower ends of the pair of vertical sliding guide shafts 10, 10 is fixed.

A pressing means 21 for pressing the edge of the tatami mat floor w is provided on the tatami mat holding member 9 constructed as described above.
The pressing means 21 is mounted on the horizontal extension plate 3.
A hook-shaped upright plate 22 is fixed to the center of the length 0, and this upright plate 2
A drive device 24 such as a rotary actuator is fixed to a base plate 23 protruding from the lateral surface of the drive device 2.
The arm member 25 has a base end fixed to a vertical output shaft (not shown), and a vertical pressing roller 26 is axially attached to a tip end of the arm member 25.

A color sensor 27 is fixed to the rectangular plate 14 at a fixed position above the rectangular plate 14 via a support piece (not shown). This sensor 27
Is located at a height of about 2 cm from the lower surface of the rectangular plate 14 at a horizontal position on the right side of the sewing machine needle 7 by a fixed distance (for example, about 2 cm), and emits light emitted from an LED (light emitting diode) from the light emitting window a. Inject and tatami table w1 which is the reference line
The diameter of the irradiation spot in the vicinity of the cutting line s is set to about 3 mm or less, and the light reflected at this irradiation spot is taken in from the light receiving window b and sent out from the optical fiber 28. At this time, the irradiation spot diameter was set to about 3 mm or less because of the cutting line s.
Is detected with the accuracy required for the tatami processing.

The tip of the optical fiber 28 is the color sensor 2
7 is connected to a photoelectric switch circuit device (not shown) provided in the vicinity of the optical switch 7. The photoelectric switch circuit device compares the optical information sent from the color sensor 27 with the optical information registered in advance by an appropriate discriminating means. To determine the difference in hue,
A switch output corresponding to the determination result is issued. At this time, the discriminating means can arbitrarily adjust the level of the discriminating ability.

Further, the above photoelectric switch circuit device comprises a machine frame 1
The controller 6 is electrically connected to a control device (not shown) fixed to the motor or the like, and rotates or stops the motor 6 in the forward or reverse direction in accordance with the switch output of the photoelectric switch circuit device. Further, the cutting and sewing head 3 is provided with a well-known mechanism (not shown) for appropriately supplying a tatami edge material composed of a band-shaped cloth material m and a band-shaped paper material n.

Reference numeral 29 denotes a tatami support table which is provided on the left side of the cutting and sewing head 3 so as to have a fixed relative arrangement to the machine frame 1, and which fixes the tatami floor w in a mounted state. I have.

Next, an example of use and operation of the above-described device of the present invention will be described. First, a case where a new tatami is manufactured will be described. As a preparation for the automatic processing, the operator places a tatami floor w having a width slightly larger than the finished size on the tatami support table 29 and, on the upper surface of the tatami floor w, a tatami table w1 cut into a required shape. And fix it temporarily with a puncture needle or the like.

On the other hand, the support table 4 and the cutting and sewing head 3
Is moved by a manual switch operation to cause the color sensor 27 to detect the hue on the upper surface of the tatami mat w1 and to register the detected hue in the photoelectric switch circuit device. Is detected, and the detected hue is registered in the photoelectric switch circuit device.

After the necessary preparations other than the above processing are completed, the automatic processing is started, whereby the following operation is automatically performed. That is, the support base 4 is moved in a direction (front-back direction) orthogonal to the paper surface, and the sewing needle 7 is positioned right beside the sewing start position.

Next, the motor 6 is operated to move the cutting and sewing head 3 to the left in FIG. 1. After the movement is started, the cutting and sewing head 3 is moved right and left by the motor 6. The movement is controlled based on the detection information of the color sensor 27.

When the cutting and sewing head 3 is moved to the left as described above, the color sensor 27 is moved above the tatami floor w to detect the hue of the upper surface of the tatami floor w. In the state, the electronic switch circuit device compares the detection information at this time with the already registered information, immediately determines that the cutting and sewing head 3 should be moved to the left, and outputs the corresponding switch output. Then, as long as the color sensor 27 detects the hue of the upper surface of the tatami floor w1, the motor 6 is rotated in the same direction (forward direction) as before, and the cutting and sewing head 3 is moved to the left. Will be moved to

By the movement of the cutting and sewing head 3, the color sensor 27 is moved to the cutting line s of the tatami mat w1 and is different from the hue of the upper surface of the tatami mat w (the hue of the tatami mat w and the hue of the tatami mat w1). Is detected, and in this state, the electronic switch circuit device should compare the detected information with the already registered information to stop the cutting and sewing head 3. Is immediately discriminated and the corresponding switch output is sent out, whereby the rotation of the motor 6 is stopped. Unless the color sensor 27 detects the hue on the upper surface of the tatami floor w or the hue on the upper surface of the tatami table w1, Is stopped, and the cutting and sewing head 3 is stopped from moving in the left-right direction. By the control of the left and right movement of the cutting and sewing head 3 as described above, the sewing machine needle 7 is brought into a state in which the sewing needle 7 is aligned with a position to be sewn at a predetermined distance L from the cutting line s.

In connection with the stop of the rotation of the motor 6 described above,
The pneumatic cylinder 11 is operated in a specific vertical direction, whereby the tatami mat press 9 presses the tatami mat w1. Then, the support base 4 is driven forward at a constant speed. The sewing needle 7 is displaced up and down and the tatami mat w
1 is sewn to the tatami floor w, while the cutting blade 12 is displaced downward to perform a swinging operation to cut the tatami floor w at the cutting line s of the tatami table w1. Become.

At this time, because the cutting line s of the tatami table w1 is not parallel to the moving direction of the support table 4,
The distance L between the sewing needle 7 and the cutting line s may change, but when the change becomes a certain degree or more, the color sensor 27 moves onto the tatami floor w to detect the hue on the upper surface of the tatami floor w. When this happens, the photoelectric switch circuit device sends out a corresponding switch output, whereby the motor 6 is rotated forward, and conversely, the color sensor 27 is turned on.
1 and detects the hue on the upper surface of the tatami mat w1, the motor 6 is rotated in the reverse direction. As a result, the change in the distance L between the sewing machine needle 7 and the cutting line s is limited to a certain degree or less. Is done.

In the operation of the color sensor 27 based on the hue detection, the detection sensitivity of the color sensor 27 with respect to the color change is appropriately adjusted. , The change in the distance L is made smaller, and conversely, when the change is made lower, the change in the distance L is made larger.

With the above operation, the tatami table w1 is shown in FIG.
As shown in the figure, the tatami mat w and the tatami mat w are continuously sewn to the tatami floor w at a fixed distance L from the cutting line s, and the tatami mat w is continuously sewn at the position matching the cutting line s. Will be cut. When the sewing and the cutting are completed, the support base 4 is stopped at a specific position, and waits for the next operation command.

Thereafter, after the required manual work and automatic processing are performed, the tatami floor w and the like on the tatami support table 29 are removed to prepare the next tatami floor and tatami table w1, and the same operations as above are repeated. To do so.

Next, a case where the old tatami is turned over or turned over will be described with reference to FIG. FIG. 3 is a diagram illustrating a part of the use state of the present embodiment. Since the tatami floor w of the old tatami mat shrinks, if necessary, the correction member e formed by shredding the tatami mat w1 into a strip shape is fixed to the edge of the tatami mat w by a required number of wire fittings and contracted. Is corrected. In the illustrated example, the correction member e
Are fastened.

The tatami mat floor w is placed on the tatami mat support base 29 in the same manner as in the above-mentioned use example. At this time, the cutting line s of the tatami mat table w1 is made to substantially match the right edge of the tatami mat w1. . Thereafter, by moving the support base 4 and the cutting and sewing head 3, the color sensor 27 moves the right edge line s1 of the tatami floor w (the outermost right edge of the correction member e when the correction member e is fixed). Line s2) As a state in which the hue on the upper surface is detected, a process of registering the detected hue in the photoelectric switch circuit device is performed, and the color sensor 27 detects a hue at a position off the tatami floor w and the correction member e. As a state, a process of registering the detected hue in the photoelectric switch circuit device is performed.

After the necessary preparations other than these processings are completed, an automatic processing is started. In this case, the cutting blade 12 is not operated and the pressing member 12 is pressed when the correction member e is fixed. The means 21 is brought into an operable state.

As a result, the sewing is automatically performed by the sewing needle in the same manner as in the previous use example, but the following points are different from those in the previous use example. That is, when the correction member e is not fixed to the tatami floor w, the color sensor 27 detects the hue of the upper surface of the tatami floor w and the hue of the place where the tatami floor w does not exist, and based on this detection information. By operating the respective parts in the same manner as in the above-mentioned use example, the sewing needle 7 is controlled so that the distance from the right edge line s1 of the tatami floor w does not change more than a predetermined value.

On the other hand, when the correction member e is fixed to the tatami floor w, the color sensor 27 detects the hue of the correction member e and the hue of the place where the tatami floor w and the correction member e do not exist. Based on this detection information, each part operates in the same manner as in the previous use example, so that the sewing machine needle 7 moves the correction member e.
Is not changed more than a certain distance from the outermost right edge line s2. The control is performed so that the correction member e does not depart from the outermost right edge line s2 in the left-right direction more than a certain amount.

At this time, the arm driving device 24 swings the arm member 25 in the specific direction f and presses the pressing roller 26 against the outermost surface of the correcting member e with an appropriate pressure. The outermost right edge line s2 of the correction member e, which is located almost right of the right side and is in close contact with the right end surface of the tatami floor w, is detected. Even when the tatami floor w is partially lifted up from the right end face, the tatami floor w is kept at an appropriate constant distance from the right end face.

As a result, even in the process of the old tatami mat, the tatami mat table w
Reference numeral 1 indicates that the tatami floor w is continuously sewn to the tatami floor w at a position at a fixed distance from the right edge line s1 of the tatami floor w, which is a reference line, together with the tatami mat materials m and n.

The above embodiment can be modified as follows. In other words, the cutting and sewing head 3 is not a cutting head in which a mechanism for sewing is omitted, and is a device dedicated to cutting. Alternatively, the sewing head is a sewing head in which a mechanism for cutting is omitted from the cutting sewing head 3, and is a device dedicated to sewing.

[0041]

According to the present invention described above, even if the height of a nearby portion such as a cutting line of a tatami mat, which is a reference line for cutting and sewing, is not uniform, the cutting and sewing line is aligned with the reference line. The tatami mats are precisely aligned, and a tatami mat having good shape accuracy can be manufactured. In addition, since the sensitivity of the color sensor can be adjusted, a processing state optimally suited to the tatami mat to be actually processed can be easily and quickly obtained.

According to the second aspect, the same effects as those of the first aspect are obtained, and the sewing of the tatami mat is accurately performed even on the tatami mat where the shrinkage of the dimension is corrected in the replacement of the old tatami mat and the turning process of the tatami mat. You can do it.

According to the third aspect, even when the height of the vicinity of the cutting line of the tatami mat, which is the reference line for cutting, is uneven, the cutting line is exactly along the reference line. Things.

According to the fourth aspect, even when the height of a nearby portion such as a cutting line of a tatami mat, which is a reference line for sewing, is uneven, the sewing line accurately follows the reference line. It is what becomes.

According to the fifth aspect, the sewing of the tatami mat can be accurately performed even on the tatami mat of which the size contraction has been corrected in the process of replacing the old tatami mat or turning the tatami mat inside out.

[Brief description of the drawings]

FIG. 1 is a front view of an automatic cutting and sewing apparatus according to the present invention.

FIG. 2 is a diagram showing a use state of a part of the device.

FIG. 3 is a view showing another use state of a part of the device.

[Explanation of symbols]

 3 Cutting and Sewing Head 21 Pressing Means 27 Color Sensor s Cutting Line of Tatami Table w1 (Reference Line) s1 Edge Line of Tatami Floor w (Reference Line) s2 Outermost Edge Line of Correction Member e (Reference Line) w Tatami floor

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[Procedure amendment]

[Submission date] August 11, 1999 (1999.8.1)
1)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Name of invention

[Correction method] Change

[Correction contents]

Patent application title: Automatic sewing device for tatami mats and automatic sewing cutting device for tatami mats and tatami floors

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0001

[Correction method] Change

[Correction contents]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tatami floor automatic sewing apparatus for tatami mats and an automatic sewing and cutting apparatus for tatami mats and tatami floors.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0002

[Correction method] Change

[Correction contents]

[0002]

2. Description of the Related Art In the manufacture of tatami mats, dimensions of a room are measured in advance, and dimensions of each tatami mat adapted to the distortion shape at the site are determined based on the dimensions. The tatami mat used for each tatami is cut into a certain shape based on the tatami mat, and the cut tatami mat is temporarily fixed on the tatami mat floor.After that, by using an automatic cutting and sewing device, the tatami mat can be cut along the cutting line thereof. Sewing is performed on the tatami floor, and simultaneously with the sewing, the vicinity of the cutting line of the tatami floor is cut.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005] The present invention relates to an automatic tatami-floor for a tatami floor with a tatami edge, which enables sewing to be carried out exactly along the cutting line irrespective of the asymmetry of the height near the cutting line on the tatami surface. An object of the present invention is to provide a sewing device and an automatic sewing cutting device capable of cutting a tatami floor edge simultaneously with sewing a tatami edge.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction contents]

[0006]

According to the first aspect of the present invention, an automatic tatami floor sewing apparatus with a tatami mat is provided with a color sensor for detecting a reference line at a cut end of a tatami mat. Based on the above, the tatami edge is stitched to the tatami floor at an inner position at a fixed distance from the cut end of the tatami mat.
The color sensor detects the hue near the reference line, and therefore does not emit erroneous information due to the asymmetry in the height of the reference line. Further, since the sensitivity of the color sensor to the color change of the detection target is easily adjusted, the accuracy of the sewing locus is easily and optimally adjusted.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

[0007] In the second invention, the edge of the tatami floor, which is made unnecessary at the same time as the sewing of the tatami mat, is cut and removed. In the third invention, in addition to the configuration of the first and second inventions, a pressing means for pressing the end surface of the tatami floor edge to the cutting and sewing head is provided.By adopting this pressing means, This effect will be exhibited when replacing the tatami mat on the old tatami floor or turning over the old tatami mat.

[Procedure amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Change

[Correction contents]

The fourth invention provides a preferable configuration of the color sensor.

[Procedure amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction contents]

[0010] The fifth invention relates to a preferred example of hue determination by a color sensor.

[Procedure amendment 10]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction contents]

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below. FIG. 1 is a front view of an automatic sewing of a tatami edge to a tatami floor and a sewing and cutting device according to the present invention, and FIG. 2 is a diagram showing a use state of a part of the device.

[Procedure amendment 11]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction contents]

In these figures, reference numeral 1 denotes a machine frame which is provided in a fixed length range in a direction perpendicular to the plane of the drawing. A support table 4 of a cutting and sewing head 3 is mounted on an upper surface of the machine frame 1 via rails 2 and 2 so as to be vertically moved by driving means (not shown).

[Procedure amendment 12]

[Document name to be amended] Statement

[Correction target item name] 0013

[Correction method] Change

[Correction contents]

The cutting and sewing head 3 is supported via a guide track 5 provided on a support table 4 so as to be slidable and displaceable in a horizontal direction orthogonal to the longitudinal direction of the support table. The operation is performed by a motor 6 fixed to the right side of 3a.

[Procedure amendment 13]

[Document name to be amended] Statement

[Correction target item name] 0014

[Correction method] Change

[Correction contents]

A sewing means and a cutting means are provided at the left overhanging portion of the cutting and sewing head frame 3a. The sewing means comprises a needle vertical drive shaft 8 for vertically displacing the sewing needle 7, and a fold at the lower end. A pair of vertical sliding guide shafts 10 to which the presser 9 is fixed;
10 and the like, and a pneumatic cylinder 11 and the like for vertically displacing the tatami press 9 are mounted. The cutting means includes a cutting blade 12 from the left side of the head frame 3a to the tip.
The swing arm 13 is extended so as to be capable of vertically swinging. The needle vertical drive shaft 8 and the swing arm 13 are linked to driving means (not shown).

[Procedure amendment 14]

[Document name to be amended] Statement

[Correction target item name] 0017

[Correction method] Change

[Correction contents]

The cutting and sewing head 3 is further provided with a pressing means 21 for pressing the edge of the tatami mat floor w. The pressing means 21 is provided at the center of the length of the laterally extending plate 30. A hook-shaped upright plate 22 is fixed, and a driving device 24 such as a rotary actuator is fixed to a base plate 23 protruding from the lateral surface of the upright plate 22, and an arm member 25 is attached to a vertical output shaft (not shown) of the driving device 24. And a vertical pressing roller 26 is axially attached to the distal end of the arm member 25.

[Procedure amendment 15]

[Document name to be amended] Statement

[Correction target item name] 0018

[Correction method] Change

[Correction contents]

A color sensor 27 is mounted at a position slightly away from the sewing needle toward the support base 4 via a support piece (not shown). This sensor 27 is provided with the sewing machine needle 7.
From the tatami floor on the lower surface of the rectangular plate 14 at a height of about 2 cm at a lateral position that is on the right side by a fixed distance (for example, about 2 cm), and emits light from an LED (light emitting diode) from the light emitting window a. The irradiation spot diameter in the vicinity of the cutting line s of the tatami table w1 as a reference line is set to be about 3 mm or less, and the light reflected at this irradiation spot is taken in from the light receiving window b and sent out from the optical fiber 28. There is something. At this time, the irradiation spot diameter is set to about 3 mm or less in order to detect the cutting line s with the accuracy required for the processing of the tatami.

[Procedure amendment 16]

[Document name to be amended] Statement

[Correction target item name] 0023

[Correction method] Change

[Correction contents]

On the other hand, the support table 4 and the cutting and sewing head 3
By moving the switch operation by manually, by detecting the color of the tatami facing w1 upper surface color sensor 27, performs a process of registering the detected hue photoelectric switch circuit device, also a tatami mat w ₁ to the color sensor 27 The mixed color of the tatami floor w and the hue of the upper surface of the tatami floor w are respectively detected, and the detected hues are similarly registered in the photoelectric switch circuit device.

[Procedure amendment 17]

[Document name to be amended] Statement

[Correction target item name] 0024

[Correction method] Change

[Correction contents]

After the necessary preparations other than the above processing are completed, the automatic processing is started, whereby the following operation is automatically performed. That is, the support table 4 is moved in a direction (vertical direction) perpendicular to the paper surface, and the sewing needle 7 is positioned right beside the sewing start position.

[Procedure amendment 18]

[Document name to be amended] Statement

[Correction target item name] 0040

[Correction method] Change

[Correction contents]

[0040]

According to the present invention described above, even when the height of the vicinity of the cutting line of the tatami mat, which is the reference line for sewing the tatami mat to the tatami mat floor, is uneven, the sewing is performed. The line is exactly along the reference line, and a tatami mat having good shape accuracy can be manufactured. Further, by making the sensitivity of the color sensor adjustable, a processing state optimally adapted to the tatami mat to be actually processed can be easily and quickly obtained.

[Procedure amendment 19]

[Document name to be amended] Statement

[Correction target item name] 0041

[Correction method] Change

[Correction contents]

According to the third aspect, the same effects as in the first and second aspects are obtained, and the sewing of the tatami mat on the tatami mat of which the dimensional shrinkage has been corrected in the replacement of the old tatami mat or the inside-out process of the tatami mat has been corrected. The dressing can be performed with high accuracy.

[Procedure amendment 20]

[Document name to be amended] Statement

[Correction target item name] 0042

[Correction method] Change

[Correction contents]

According to the third and fourth aspects, it is possible to provide a preferable use example of the color sensor and contribute to the reduction in cost.

[Procedure amendment 21]

[Document name to be amended] Statement

[Correction target item name] 0043

[Correction method] Deleted

[Procedure amendment 22]

[Document name to be amended] Statement

[Correction target item name] 0044

[Correction method] Deleted

[Procedure amendment 23]

[Document name to be amended] Statement

[Correction target item name] 0045

[Correction method] Deleted

Claims (5)

[Claims] 1. A cutting and sewing head is provided with a color sensor for detecting a reference line of a tatami floor edge, and operates so as to automatically cut and sew the tatami floor edge based on information detected by this sensor. An automatic cutting and sewing apparatus for a tatami floor edge. 2. A pressing means for providing a color sensor for detecting a reference line of a tatami floor edge to a cutting and sewing head and pressing an end surface of the tatami floor edge during movement of the cutting and sewing head. An automatic cutting and sewing device for a tatami floor edge which is provided and operates so as to automatically cut and sew the tatami floor edge based on detection information of a color sensor. 3. The cutting head is provided with a color sensor for detecting a reference line of a tatami floor edge, and operates so as to automatically cut the tatami floor edge based on detection information of this sensor. Automatic cutting device for tatami floors. 4. A sewing machine, wherein a color sensor for detecting a reference line of a tatami floor edge is provided on a sewing head, and an operation is performed to automatically sew the tatami floor edge based on detection information of this sensor. Automatic sewing device for tatami floor edge. 5. A sewing device, comprising: a color sensor for detecting a reference line of a tatami floor edge on a sewing head; and pressing means for pressing an end surface of the tatami floor edge during movement of the sewing head. An automatic sewing apparatus for a tatami floor edge, which operates to automatically sew a tatami floor edge based on detection information of a color sensor.