JP2566365Y2 - Tatami rim sewing device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called double embroidery machine for simultaneously sewing upper and lower front tatami edges on a tatami floor, and more particularly to a tatami mat having improved driving means. It is an edge sewing device.

[0002]

2. Description of the Related Art Conventionally, a tatami edge sewing apparatus comprises a tatami mounting table and a sewing table on which an upper front sewing machine and a lower front sewing machine are opposed to each other. Moving the table was the mainstream. Although this sewing machine can stably sew, a long tatami mat table moves to the left and right of the fixed sewing machine table, so that a large floor area is required and there is a problem in securing the installation area. In view of this, the present inventor has developed a tatami edge sewing apparatus of a type in which the tatami mat mounting table is fixed and the sewing machine table is moved, conversely from the past, and has been adapted to a narrow installation area.

[0003]

However, in the drive device of the sewing machine table, the rails on the tatami mat mounting table are formed in a rack form, the pinions meshing with the rails are used as moving wheels, and the sewing machine table is moved by a feed motor provided on the sewing machine table. It was of the form to let. For this reason, the sewing machine stand becomes heavy and the cable of the sewing machine motor must be moved while being dragged, so that there is a limit to sewing at high speed.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a tatami edge sewing apparatus comprising a tatami mounting table 1 and a sewing table 4 on which an upper front sewing machine 2 and a lower front sewing machine 3 are placed facing each other. The problem has been solved by fixing the sewing machine base 4 so that the sewing machine base 4 can be moved on the tatami mounting table 1 by the feeding device 5 provided on the tatami mounting table 1.

[0005]

With such a structure, a motor or the like which feeds the motor is eliminated from the sewing machine base 4, so that the weight can be reduced, and a cable for the motor which is an obstacle is not connected to the sewing machine base 4. As a result, the above-mentioned difficulties associated with the movement are eliminated.

[0006]

1 is a schematic plan view of the apparatus, and FIG. 2 is a schematic front view of the apparatus as seen through a sewing machine. In this apparatus, the tatami mounting table 1 has two rails 6, 6 fixed in the moving direction of the sewing machine. It is the motor 8 of the feeding device 5 provided below the tatami table 1 that moves the sewing machine table 4 forward and backward, and the feed motor 8 rotates the chain 9 stretched below the tatami table 1. Then, the sewing machine base 4 connected to the chain 9 by the bracket 10 moves forward or backward with the rotation of the chain. An intermediate sprocket 9b provided coaxially with a sprocket 9a on which the chain 9 is stretched.
Is connected to the feed motor 8 by a timing belt 11, and when the feed motor 8 rotates, the sewing machine base 4 moves. An encoder 12 is provided in contact with the timing belt 11, and the rotation of the encoder controls the amount of movement of the sewing machine.

The upper front sewing machine 2 and the lower front sewing machine 3 are arranged on the sewing machine stand 4 so as to face each other, and the lower front sewing machine 3 can be moved and adjusted according to the size of the tatami mat.
It is screwed to a screw 13 provided at the upper part. The screw 13 is connected to the sewing machine adjusting motor 14 provided on one side of the sewing machine base 4 and the belt.
It is connected at 15 and is rotatable. Then screw 13
When is rotated, the upper front sewing machine 2 and the lower front sewing machine 3 move in the width direction of the tatami mat 20, and the sewing position by the needle 3a can be adjusted. In this example, the upper front sewing machine 2 is fixed to the sewing machine stand 4.

[0008] The tatami mat 20 is held between the tatami mat support table 16 of the tatami mat mounting table 1 and the upper tatami mat retainer 17, and both edges are held in a floating state so that sewing by a sewing machine is possible. The tatami mat 20 can be straightened by the tatami mat support 17 above the tatami mat. The tatami mat held horizontally in this state can be cut to the required size by the rotary cutting blades 21 and 22 provided below the upper front sewing machine 2 and the lower front sewing machine 3, respectively.

[0009]

[Effects of the Invention] As described above, the present invention fixes the tatami mounting table and moves the sewing machine table on the tatami mounting table by the feeder provided on the tatami mounting table. Cables that become obstructive with the forward / backward movement are also eliminated from the sewing machine base, enabling high-speed sewing and a long service life of the device.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of the present apparatus.

FIG. 2 is a schematic front view of the present apparatus seen through a sewing machine.

[Explanation of symbols]

 1 Tatami table 2 Upper front sewing machine 3 Lower front sewing machine 4 Sewing machine base 5 Sewing machine feeder

Claims (1)

(57) [Scope of request for utility model registration] 1. A tatami edge sewing apparatus comprising a tatami mounting table 1 and a sewing machine table 4 on which an upper front sewing machine 2 and a lower front sewing machine 3 are placed opposite to each other. The sewing machine base 4 is provided with a feeding device 5 provided on the tatami mounting table 1. The sewing machine base 4 is installed so as to be movable.