JPH04130772U - Sewing machine personal protection device - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose of the present invention is to provide a simple and inexpensive personal protection device for sewing machines in order to protect workers from accidents during sewing operations using sewing machines. [Structure] A presser foot and a personal protection plate are fixed to the tip of the shaft of a cylinder that allows the shaft to move forward and backward between a position near the sewing section and a position further away based on the sewing drive signal of the sewing machine. A presser operation by the presser foot and a protection operation by the personnel protection plate to isolate the sewing section from the worker are performed simultaneously, and after sewing is completed, the shaft is retracted and returned to the initial position.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention protects workers from accidents such as broken needles during sewing work on sewing machines. This article relates to personal protective equipment for sewing machines.

0002

[Conventional technology]

FIG. 3 shows a conventional personal protection device for a sewing machine, and 11 indicates a personal protection device for a sewing machine. The first cylinder is provided on the base, and 12 is at a position where it contacts the cloth mounting table and a position where it is separated from the cloth mounting table. It is installed at the tip of the shaft that allows it to move forward and backward between the two positions. This is a presser foot. 13 is a second cylinder provided in the arm of the sewing machine. It has a shaft that can move up and down near the sewing part and near the jaw part. 14 is a personal protection plate provided at the tip of the shaft.

0003 The conventional personal protection device having the above configuration operates as follows. Made by The trader places the workpiece on the presser foot and then turns on the switch and drive hand (not shown). By driving the first cylinder by the stage and advancing the shaft, the presser foot is The sewing machine advances its body and presses the material to be sewn between it and the fabric mounting table. After that, switch (not shown) and the second cylinder is driven by the driving means, and the shaft is advanced in the same manner. Then, move the personal protection plate from the chin area to the sewing area, and the worker's protection status is completed. Then, start sewing, and after finishing, drive the second cylinder to attach the personal protection plate. After retracting, the first cylinder is driven to retract the presser foot. Also FIG. 4 shows another conventional personal protection device, in which 21 is a section under the jaw of a sewing machine. A rotating shaft at the end allows the machine to freely rotate between a position that blocks the worker and the sewing section and a position that opens it. It is a personal protection board supported by 22 is a cylinder fixed to the base of the sewing machine. 23 is a shaft that can advance and retreat between a position in contact with the cloth placement table and a position away from it. This is a presser foot made of an elastic material such as rubber, which is installed at the tip of the foot.

0004 The conventional personal protection device configured as described above operates as follows. covered After setting the sewing material on the cloth table, the cylinder is driven by a driving means (not shown). By doing so, the shaft is advanced, and the cloth presser body and cloth mounting table at the tip of the shaft are Press the material to be sewn between. Then, the operator manually removes the lower end of the sewing machine's jaw. The personal protection plate provided in the sewing machine is rotated to a position that isolates the worker from the sewing section. So After sewing, the worker manually rotates the personal protection plate. , to open the sewing section to the worker.

[0005]

[Problem that the idea aims to solve]

However, the above conventional technology has the following problems. In Figure 3 In the personal protection device of the sewing machine shown, the cylinder that drives the personal protection plate and the cloth Since the cylinder that drives the presser body is provided separately, these components There were problems in that the mechanism and control became complicated and the cost increased.

[0006] In addition, in another conventional personal protection device of a sewing machine shown in FIG. After setting the material to be sewn on the fabric table, manually rotate the personal protection plate and start sewing. The machine is set in a position that isolates the machine from the worker and the worker, and after sewing is finished, manually protect personnel. It is necessary to rotate the board to return it to a position that opens the sewing section and the worker. However, there was a problem that the workability of the workers was poor.

[0007] Furthermore, a problem common to both of the above conventional examples is that the movement of the presser foot Although the operation and the protection operation by the personal protection board are performed separately, it is not possible to There is no particular reason to do this, and the problem is that these things make workability even worse. there were.

[0008]

[Means to try to solve the problem]

The personal protection device for sewing machines based on this invention is based on the sewing machine's sewing drive signal. A cylinder that allows the shaft to move forward and backward at a position near the sewing part and at a position further away. is fixed to the tip of the shaft, and as the shaft advances, the cloth is placed between the The presser foot presses the sewing material, and the presser foot is fixed near the tip of the shaft to prevent the shaft from advancing. The sewing section of the sewing machine is isolated from the worker's side, and the sewing section is opened to the worker's side by retracting. It consists of a personal protection plate for the sewing machine that is installed to Based on this, the cylinder shaft is advanced before sewing starts, and after sewing is finished, it is retracted. Avoid.

[0009]

[Effect]

According to this invention, the cylinder is driven in relation to the sewing machine's sewing drive signal, and The shaft to which the presser foot and personnel protection plate are fixed is moved forward to operate the presser foot and protect personnel. Sewing is started after the protection operation by the plate is performed at the same time, and the plate is evacuated after sewing is completed.

0010

[Example of idea]

FIG. 1 is a perspective view showing a personal protection device for a sewing machine, which is an embodiment of this invention. 1 is a sewing machine, and 2 is a cloth mounting table. 3 is fixed to the sewing machine base 4 This is a cylinder that is driven by air or electromagnetism. 5 is the cylinder shaft be. 6 is a presser body made of rubber or the like, which is installed at the tip of the shaft, and is As the shaft advances and retreats due to the drive of the sewing machine, its tip extends near the sewing section of the sewing machine. It is possible to advance to a position where it comes into contact with the top surface of the cloth placing table 2 to be taken out, and by retracting the shaft, , is configured to be retractable to a position where the cloth can be set on the cloth placement surface.

[0011] 7 is a support provided at the tip of the shaft and slightly above the presser foot 6; It is a plate with one end fixed to the shaft and the other end bent upward into an almost L-shape. , so that its bent surface is approximately parallel to the face plate. 8 is the above support This is a personal protection plate placed against the bent surface of the other end of the holding plate, and is made of hard plastic. It is a colorless or colored transparent thin plate made of material such as acrylic or acrylic.

0012 These allow the workpiece to be placed on the fabric placement surface when the cylinder shaft is retracted. When the machine is advanced, the personal protection plate is placed under the sewing machine's jaw and works with the sewing section. It is located in a position where it can be shielded from other people. The personal protection device for the sewing machine configured as described above operates as follows. First, the worker sets the work to be sewn on the fabric table and starts the sewing operation of the sewing machine. Depress the second sewing pedal. As a result, the control section of the sewing machine (not shown) controls the sewing drive. The signal is received, and based on the signal, the cylinder is driven to move from a to b shown in Figure 2. Advance the shaft to the desired position. Then, the presser foot installed at the tip of the shaft , presses the material to be sewn between the machine and the fabric mounting table, and at the same time The personal protection plate provided on the upper support plate also extends along with the shaft to protect the sewing area and the fabric. Cut off vendors. When this operation is completed, the sewing machine starts sewing operation and the sewing is completed. Once completed, the cylinder is driven and the shaft is retracted from position b to position a in Figure 2. Return the presser foot and the personal protection plate to their initial positions.

[0013]

[Effect of the idea]

As explained above, this idea allows the presser foot and the personal protection plate to be placed in the same cylinder. Since it is fixed to the shaft, the presser foot can be moved forward to perform the presser operation, and at the same time, The human protection plate is advanced to isolate the sewing section from the worker, so the mechanism and control are Both are simple and have the effect of being inexpensive.

[0014] In addition, the drive signal for the cylinder that operates the presser foot and the personal protection plate is transmitted to the sewing machine. Since it is related to the signal for sewing operation, it is related to the sewing machine's sewing drive signal. The cylinder is driven, and the sewing operation starts immediately after the presser operation and personal protection operation are completed. The cylinder shaft can be returned to its original position after sewing is completed. This has the effect of allowing a series of actions to be performed automatically.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of a personal protection device for a sewing machine according to the present invention.

FIG. 2 is an explanatory diagram showing the operation of an embodiment of the personal protection device for a sewing machine according to the invention.

FIG. 3 is an explanatory diagram showing the operation of a conventional personal protection device for a sewing machine.

FIG. 4 is an explanatory diagram showing the operation of another conventional personal protection device of a sewing machine.

[Explanation of symbols]

1 sewing machine 2 Cloth placement board 3 cylinder 4 Sewing machine base 5 Shaft 6 Presser foot 7 Support plate 8 Personal protection board

Claims (1)

[Scope of utility model registration request] 1. A cylinder that allows a shaft to move forward and backward between a position near the sewing part and a position further away from the sewing area based on a sewing drive signal of a sewing machine; A presser foot that presses the workpiece is fixed near the tip of the shaft, and when the shaft advances, it blocks the sewing section of the sewing machine from the operator's side, and when it retreats, it closes the sewing section to the operator's side. A sewing machine comprising: a personal protection plate for a sewing machine provided to be opened to the sewing machine; and based on a sewing drive signal of the sewing machine, a shaft of a cylinder is advanced to start sewing, and is retracted after sewing is completed. personal protective equipment.