JPS637512Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cutting device, and in particular to a portable cutting device, which has a flexible cutting blade that can effectively cut materials such as various flexible tube materials that are difficult to cut straight. This invention relates to a cutting device for quality materials.

As the structure of this type of portable cutting device is conceptually shown in FIG. As the material is moved between the movable blade 5 and the fixed blade 6, it is appropriately pressed down by the material presser 7 that interlocks with the movable blade 5 and cut to a required length, and then by the continuous operation of the crank mechanism 4. The movable blade 5 moves upward to separate from the fixed blade 6,
Further, the material presser 7 also returns to its original position with the cooperation of the return spring 8, thereby completing one cycle of cutting operation.

By the way, when the material to be cut is, for example, a flexible plate-shaped, linear, tube-shaped, or band-shaped material 3A, as shown in FIGS. Blade 5 and fixed blade 6
When cutting, the movable blade 5 has a large inclination angle θ on one side and the front and back sides of the blade are not formed symmetrically, so the material 3A is deformed. There is a problem in that the cut 3B of the material 3A cannot be cut straight due to crushing and deformation. Examples of such materials include silicone rubber, silicone rubber tubes, urethane rubber and tubes, other rubbers and tubes, and various medical tubes. It is strongly desired that the material be cut straight and into flat strips 3C as shown in Fig. 5.

Taking these circumstances into consideration, the present invention provides a cutting device that can cut such flexible materials straight and flat, and the movable blade is composed of a thin blade that is symmetrical on the front and back sides of the cutting edge. The present invention provides a cutting device characterized in that the blade receiver is made of a soft material into which the movable blade can bite, and in such a device, a shutter for preventing the material from lifting is provided. This was devised to ensure good material cutting operation by providing the following.

Hereinafter, the present invention will be described in more detail with reference to the embodiments shown in FIGS. 6 and 7. In both figures, the same reference numerals as in FIGS. 1 and 2 indicate the same components, and 5A indicates the cutting edge. It is a thin double-edged movable blade whose front and back sides are symmetrically formed, and is configured so that it can be attached to the crank mechanism 4 so as to be replaceable as appropriate. 6A is a blade receiver fixedly arranged below such a movable blade 5A.
The movable blade 5A and blade receiver 6A are made of a suitable soft material such as urethane material, rubber material, vinyl material, or wood that allows the cutting edge to bite into the flexible material to be cut at the time of cutting. It is configured to be able to cut the material 3A without deforming it as much as possible. Reference numeral 11 indicates a material lifting prevention shutter placed close to the movable blade 5A.
The movable blade 5A and the blade receiver 6A are arranged so as to leave a gap with the material 3A, thereby making it possible to properly cut the material 3A straight and flat while preventing the material 3A from floating up. ing. This shutter 11 for preventing material floating is arranged so that its insertion interval can be adjusted depending on the thickness or diameter of the material 3A.
As shown in FIG. 7, it is preferable to configure the shutter adjustment knob 13 mounted on the frame 14 so that its position can be adjusted up and down. Such a shutter 11 therefore has a movable blade 5A and a blade holder 6.
This also functions as a finger guard to prevent fingers from inadvertently entering the cutting area by A, which is convenient from a safety standpoint. Reference numeral 9 denotes a material alignment guide, which is arranged in a comb tooth shape between the material feeding rollers 1 and 2 and the cutting blade as shown in the figure, and is used to guide the material 3A in the form of a line, tube, or band. The guide 9 acts to transport the material to the cutting area while preventing it from swinging.
This is a knob for adjusting the material insertion interval or division interval. In addition, 10 indicates a guide arranged behind the feed rollers 1 and 2, and the material 3A
It is desirable to configure the insertion interval so that the insertion interval can be adjusted depending on the type.

According to the cutting device having such a structure, the flexible material 3A fed by the material feeding rollers 1 and 2 is
The material alignment guide 9 and the shutter 11, which also serves as a finger guard and is placed close to the cutting area, suitably prevent the material from swinging or lifting up relative to the cutting blade, and are fed straight to a fixed length, where it is formed into a thin blade. The material 3A is cut with as little deformation as possible by the movable blade 5A and the blade holder 6A made of a soft material that allows the cutting edge to bite into the blade appropriately, so the cut is made straight and flat. This means that it can be cut. Depending on the type of flexible material 3A, it is possible to prepare several types of cutting edge shapes and thicknesses of the movable blade 5A so that the shape and thickness of the movable blade 5A are optimal.
It is preferable that the blade rest 6A is also formed in various types in advance so that the degree of hardness or softness thereof can be selected as appropriate, and that it is provided so that it can be easily replaced.

As described above, the present invention is equipped with a thin double-edged movable blade and a soft blade holder that receives the movable blade so that various flexible materials that are difficult to cut straight and flat can be effectively cut. A shutter for preventing material lifting is provided, which is disposed close to the movable blade and has an adjustment mechanism that can be moved up and down to vary the material insertion interval, and has a finger guard function, and the shutter is arranged close to the movable blade and has a material lifting prevention shutter that can move the material in the cutting area by the blade receiver and the movable blade. Since the material guide is arranged in the transfer path, it is possible to securely prevent material from escaping during cutting, and to stably cut flexible materials such as various rubbers or tubes with straight and flat cuts. A cutting device for cutting flexible materials which can cut well, has a simple mechanism, and is highly safe can be provided at a low cost.

[Brief explanation of the drawing]

Figure 1 is a conceptual configuration diagram of a conventional small portable cutting device, Figure 2 is a diagram illustrating the swinging or lifting of material in the device shown in Figure 1, and Figure 3 is a diagram of the movable blade in Figure 1. A diagram showing the shape, FIG. 4 is a diagram explaining the cut of the material cut by the conventional device of FIG. 1,
FIG. 5 is a diagram showing a preferable state in which the material is cut straight and flat, and FIGS. 6 and 7 are a conceptual front view and a plan view of a cutting device according to an embodiment of the present invention. . 1, 2...Material feeding roller, 4...Crank mechanism, 5A...Thin blade movable blade, 6A...Soft blade receiver, 9...Material alignment guide, 11...Shutter for preventing material floating.

Claims (1)

[Scope of utility model registration request] A cutting device for cutting soft materials, characterized in that the movable blade is made of thin double-edged blades and the blade receiver is made of a soft material that allows the tip of the movable blade to bite into it, the device is provided with an adjustment mechanism that is arranged close to the movable blade and can move up and down to change the material insertion interval, a shutter for preventing material floating and having a finger guard function, and a material guide is arranged in the material transport path for the cutting area by the blade receiver and the movable blade.