JPH06352U - Belt cutter - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a belt cutter of a pulling type. A safety body that encloses a protruding end of a blade protruding from a handle includes a cutting guide portion that extends rearward from a tip of the handle, and has a cutting blade that faces the cutting guide portion.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cutter for cutting a belt such as a load-tightening belt that is fastened by being wrapped around a packaged item or a heavy item.

[0002]

[Prior art]

 2. Description of the Related Art Conventionally, a packing belt is stretched over packed items, heavy items, and the like, and the belt is fastened in a tightened state for use in the transportation of loads. When the load is heavy, such a load-locking belt is composed of a wide fabric belt, which is fastened to the outer circumference of the load by a load-locking machine equipped with a ratchet mechanism, and both ends of the belt are not loosened by buckle metal fittings. To be fixed as. If the load is relatively light, it is made up of a tape-shaped resin belt with a narrow width, which is generally called a PP band, and either end of the belt is welded or fastened to the outer periphery of the load while being tightened. Is fixed using.

Therefore, when cutting the belt in order to release the load, a cutting knife, scissors or the like has been conventionally used. In other words, the present situation is that an operator carries such a knife or scissors to cut the belt as needed.

[0004]

[Problems to be solved by the device]

 As is well known, knives and scissors expose the blade during use, and thus have a problem of lacking safety. For example, if the operator accidentally grips the blade with the blade exposed, he or she will be easily injured. Generally, knives and scissors have sharp blade tips, so that there is a risk of piercing a human body or the like if used incorrectly.

By the way, in order to cut the above-mentioned load-locking belt, it is not always necessary to use a cutter such as a cutting knife or scissors that exposes the entire blade, but a special cutter that allows only a part of the blade to function. Can be used. In that case, the danger as described above can be avoided by adopting a safety structure that prevents the fingers from directly touching the blade.

With respect to this point, the present inventor has provided a safety body that extends from the handle and covers the projecting end of the blade with respect to the blade protruding from the handle, and through this safety body, there is a risk of injury accident or the like. The present invention is conceived of a cutter that prevents the belt from being guided by the guide portion by forming a guide portion that guides the belt toward the blade and allowing the blade of the blade to face the guide portion. Came to.

Then, as a result of repeating the test for the worker in order to embody this idea, as a result, in such a belt cutter, a belt cutter is pushed more than a so-called push-cut type in which the belt is cut while pushing the handle forward. It was found that the so-called pull-off type, in which the handle is pulled backward while the belt is cut, is more familiar to workers and facilitates work. The reason is not always clear, but perhaps, as seen in the usage of saws, for example, in Europe and the United States, it is common to push to cut the saw, whereas in Japan, sawing is used. It is considered that the cutting is usually performed by the method of cutting, and traditionally the Oshikiri type is deeply familiar to the general public.

Therefore, an object of the present invention is to provide a belt cutter of the pull-cut type among the push-cut type and the pull-cut type as described above.

[0009]

[Means for Solving the Problems]

 Therefore, in order to solve the above-mentioned problems, the present invention is configured as a first means, in that a blade protruding from a handle and a safety body extending from the handle and covering the protruding end of the blade are provided. In the provided cutter, the safety body includes a cutting guide portion that extends rearward from the tip of the handle, and the blade includes a cutting blade that faces the drawing guide portion.

Further, the present invention is configured as a second means, and is provided with a circular blade whose peripheral portion is partially projected from the handle, and a safety body which encloses the protruding end of the blade. In the cutter having a slide guide surface on the bottom surface of the handle, the safety body includes a connecting portion extending from the tip of the handle along the peripheral edge of the circular blade, and a pulling guide portion extending from the connecting portion toward the rear of the handle. The cutting tool is composed of a cutting edge facing the drawing cutting guide portion.

[0011]

【Example】

 An embodiment of the present invention will be described in detail below with reference to the drawings.

In FIGS. 1 and 2, a handle 1 is made of a synthetic resin and has a handle 2 that is gripped by the palm of an operator and a head 3 that has a cutting function to be described later. Have.

The grip handle 2 has an uneven edge 4 corresponding to the fingers of an operator who holds the handle at the lower edge, and a hanging hole 5 is opened at the tail end of the grip handle 2. Although not shown, the grip handle 2 is formed in a tapered shape so that the wall thickness gradually increases from the portion near the head 3 to the tail end.

As shown in FIG. 2, the head 3 is provided with a blade receiving recess 6 on one side, and a blade 7 is attached to the blade receiving recess 6.

In the illustrated embodiment, the blade 7 constitutes a disk-shaped circular blade, and the blade 8 is formed on the entire peripheral edge thereof. Correspondingly, the blade receiving recess 6 is formed into a circular shape by cutting off a part of the blade 6a, and with the circular blade 7 fitted in the blade receiving recess 6, part of the blade 7 is The cutout portion 6a is made to project.

A pressing member 9 is provided to fix the blade 7 in the blade receiving recess 6. The pressing member 9 is for sandwiching the blade 7 between the bottom surface of the blade receiving recess 6 and the pressing member 9, and is fitted into the blade receiving recess 6 together with the blade 7. Therefore, the pressing member 9 is a thin plate-like member formed in a shape corresponding to the peripheral edge of the blade receiving recess 6, and the pressing member 9 and the center of the blade 7 and the blade receiving recess 6 are aligned with each other. The mounting holes 10, 11, 12 are each formed in a penetrating shape, and these three members are fastened with a bolt 13 and a nut 14.

In a normal state, the blade 7 is fixed to the blade receiving recess 6 by being fastened by the pressing member 9, but the circular blade 8 is effectively used. The nut 14 is rotatable by loosening it so that when the blade 7 is rotated by a predetermined angle, it can be fitted to the protrusions 17 provided on the neck of the bolt 13 at equal intervals in the circumferential direction. Further, notches 18 are formed at equal intervals in the circumferential direction of the mounting hole 11 of the blade 7.

Under such a structure, as shown in FIGS. 1 and 2, a safety body 19 for enclosing the protruding end of the blade 7 is provided. The safety body 19 includes a connecting portion 20 extending from the tip of the head 3 and a pull-out guide portion 21 extending from the connecting portion 20 toward the rear of the handle 1. In the illustrated example, the connecting portion 20 is formed in a relatively thin plate shape extending with the same thickness as the thin-walled head portion 3 forming the blade receiving concave portion 6, but the pulling-out guide portion 21 is formed. The safety body 19 is formed to be thick like the handle 2 of the handle 1 and has a housing slit 22 for housing and housing the protruding end of the blade 7.

The safety body 19 thus configured has a slide guide surface 23 formed on the bottom surface of the safety body 19 and is conveniently used as a slide guide when a cutter is used.

In order to enable the drawing cutting type which is the object of the present invention, the cutting tool 7 comprises the cutting blade 8 a of the circular blade 8 facing the drawing cutting guide portion 21. The safety body 19 has a free end of the pulling cut guide portion 21 as a sharp insertion end 24, and has an insertion guide surface 25 which is an upward inclined surface from the insertion end 24 toward the cutting blade 8a. A belt introduction surface 26 is formed which is bent from 25 and extends substantially parallel to the slide guide surface 23 and reaches the cutting edge 8a.

When cutting the belt tightened on the outer periphery of the load by using the cutter having the above-mentioned configuration, as shown in FIG. The insertion end 24 of the pull-off guide portion 21 is inserted into the inside of the belt 28 which is tightened around the outer periphery of 27. That is, when the sharp insertion end 24 of the pull-out guide portion 21 is inserted between the belt 28 and the load 27 and the handle 1 is pulled toward you (in the direction of the arrow in the drawing), the belt 28 is pulled along the insertion guide surface 25. Can be lifted. Further, when the handle 1 is strongly pulled in the direction of the arrow in the drawing, the belt introduction surface 26 slides on the back surface of the belt 28, and the belt 28 is cut by the cutting blade 8a.

The pull-cutting type as in the present invention is not only familiar to us in Japan and easy to use as seen in the saw cutting method described above, but also the push-cutting type in the construction of the entire cutter. It is advantageous in comparison.

That is, FIG. 4 shows a cutter of a push-cut type as a comparative example with respect to the present invention. First, in the case of the push-cut type, the push-cut guide portion 121 constituted by the safety body 119 is integrally fixed to the connecting portion 120 extending from the handle 101 at a position rearward of the protruding end of the blade 108, and the connecting portion is The push-cut guide portion 121 is projected forward from 120. The cutting tool 108 has a cutting blade 108a facing the tip of the push-cut guide portion 121, and the push-cut guide portion 121 has an insertion guide surface 125 that is inclined upward from the sharp tip to the cut blade 108a.

Therefore, in the case of the comparative example shown in FIG. 4A, the longitudinal axis C of the handle 101 is tilted upward toward the tail end, and the angle A1 between the longitudinal axis C and the load surface is made relatively large. This can be set, and when the handle 101 is moved forward, it is possible to slide the handle 101 while pushing the bottom surface of the pull-cut guide portion 121 against the load surface. However, in the case of this comparative example, as shown in FIG. 4 (A), the distance L across the insertion guide surface 125 is extremely small, and this distance cannot be increased. Therefore, the belt is stably attached to the cutting edge 108a. I can't show you around. In this comparative example, if the pulling guide portion 121 is further extended forward, the cutting blade 108a is completely covered and does not have an exposed portion, which cannot serve as a cutter. Therefore, as described above, the insertion guide surface 125 must be formed to be short.

Next, if it is desired to form a long distance L across the insertion guide surface 125 extending from the cutting edge 108a, as in the comparative example shown in FIG. It is necessary to reduce the inclination angle A2 of the longitudinal axis C, loosen the upward posture, and bring the axis C 1 closer to be parallel to the load surface. However, in this case, firstly, since the insertion guide surface 125 extends long beyond the head end of the handle 101, the overall size of the cutter cannot be made compact, which is not appropriate. Secondly, reducing the angle A2 formed by the longitudinal axis C as described above increases the risk that the fingers of the operator who holds the handle will come into contact with the load surface, and scratches the fingers during the operation. It is dangerous and not appropriate.

In this regard, according to the embodiment of the present invention, since the pull-out guide portion 21 constituted by the safety body 19 extends from the connecting portion 20 in the rearward direction of the handle 1, this pull-out guide portion 21 is provided. Even if the guide 21 is formed to have a considerably long size, the guide portion 21 does not protrude from the entire length of the handle 1, and the overall size of the cutter can be kept compact. Further, as shown in FIGS. 1 to 3, since the grip handle 2 of the handle 1 can be set so as to always be in a sufficiently upwardly inclined posture, the fingers of the operator who grips the grip handle 2 can be placed on the load surface. Since there is no contact, it is possible to ensure work safety.

[0027]

[Effect of device]

 According to the present invention as set forth in claim 1, since the projecting end of the blade 7 projecting from the handle 1 is covered with the safety body 19 extending from the handle 1, it is safe to carry and handle the cutter. The safety body 19 is used to form a guide portion for guiding the belt toward the blade 7, and the blade of the blade is exposed to the guide portion, so that the belt is guided to the guide portion. It can be easily and easily cut. Particularly, in the present invention, the guide portion constituted by the safety body 19 is provided with the cutting guide portion 21 facing the rear of the handle 1, and the cutting tool 7 is provided with the cutting blade 8a facing the pulling guide portion 21. Therefore, there is an effect that a Japanese worker who is accustomed to cutting in the pulling direction by using a saw or the like has a deep familiarity and is easy to accept. Further, as described above, in the case of the push-cut type, the compactness of the cutter as a whole is lost, and there is a risk that an operator may rub his / her fingers on the load surface and get injured. Therefore, it is possible to form the pulling guide portion 21 sufficiently long while maintaining the compactness of the entire cutter. Moreover, even when the pulling guide portion 21 is designed to be long in this way, the longitudinal axis of the handle 1 is Can be sufficiently tilted upward, and there is no risk of being injured by rubbing the fingers of the operator who holds the grip handle 2 on the surface of the load, and there is an effect that it is safe.

According to the present invention as set forth in claim 2, in addition to the above effects, the blade 7 is constituted by a circular blade, and the cutting blade 8a is formed by a part of the blade 8 formed on the peripheral edge of the blade 7. Since the blade 7 has a simple structure, and when the cutting blade 8a is worn, the circular blade 7 is rotated to move and fix the circular blade 8a. The unused portion of the cutting blade 8a can be reconfigured to maintain good sharpness.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is an exploded front view showing an embodiment of the present invention.

FIG. 3 is a front view showing the operation of one embodiment of the present invention.

FIG. 4 shows a comparative example with respect to the present invention, (A) is a front view showing the reason why the press-cutting type cannot form the guide portion long, and (B) shows the press-cutting type in which the guide portion is temporarily long. Then, it is a front view showing the reason why the handle cannot be sufficiently tilted upward.

[Explanation of symbols]

 1 Handle 2 Grip Handle 3 Head 6 Blade Receiving Concave 6a Cutting Part 7 Cutting Tool 8 Circular Blade 8a Cutting Blade 9 Holding Member 19 Safety Body 20 Connection Part 21 Cut-off Guide Part 22 Storage Slit 23 Slide Guide Surface 24 Insertion End 25 Insertion Guide Surface 26 Belt introduction surface 27 Load 28 Belt

Claims (2)

[Scope of utility model registration request] 1. A cutter comprising a blade projecting from a handle and a safety body extending from the handle and covering the projecting end of the blade, wherein the safety body is a pulling guide portion directed rearward from the tip of the handle. A belt cutter, wherein the blade comprises a cutting blade that faces the pulling guide portion. 2. A cutter comprising a circular blade having a peripheral portion partially projected from a handle and a safety body encapsulating the protruding end of the blade, wherein the bottom surface of the safety body has a slide guide surface. The safety body includes a connecting portion extending from the tip of the handle along the peripheral edge of the circular blade, and a cutting guide portion extending from the connecting portion toward the rear of the handle. The blade is cut by the blade facing the cutting guide portion. A belt cutter characterized by comprising the following.