JP4397912B2 - Carving sword and pull handle used for the sword - Google Patents

Description

  The present invention relates to an engraved sword that has been improved so that safety and workability are improved by using an engraved blade as an annular blade, and a handle for drawing used in the engraved sword.

As a conventional engraving sword, there is an engraving sword formed by bending a plate-like blade body into a U shape or bending it into a U shape. (For example, see Patent Document 1)
There is also a sculpture sword for press cutting, which is not for cutting, but has a handle on the wing. (For example, see Patent Document 2)
Japanese Utility Model Publication No. 4-83699 (page 8, FIG. 1) Japanese Utility Model Publication No. 6-68896 (2nd page, FIG. 1)

The engraving sword shown in Patent Document 1 is provided with a blade on a part of a belt-like plate, and then when the force is applied to a thin blade portion in order to curve or bend the plate, Due to the disadvantage that the blade performance and strength deteriorated, the production was troublesome.
The engraving sword shown in Patent Document 2 is provided with a finger hook on the handle to prevent slipping. However, since the relationship between the handle and the hand or finger is always supported in the same state, the position of the grip can be changed. It had the disadvantage of not being able to. Although the finger hook is detachable, it cannot be used properly with the right hand or the left hand depending on the dominant hand.
The present invention has been made in order to eliminate such drawbacks, and has a strength, good operability, and a sword provided with a finger hook that can change the position of the grip, and a cut used for the sword. The purpose is to provide a handle.

Means for Solving the Invention

In order to solve the above problems, the present invention has the following configuration.
The engraving sword described in claim 1 is formed of an annulus, provided with an attachment means including an attachment hole for connection provided on a side wall thereof, and an attachment shaft detachably attached to the attachment hole, and one of the annulus A cutting blade was provided on the cut surface to obtain an annular blade. According to such a sculpture sword, not only is the ring body strong, but since the blade is provided on the inside thereof, the blade does not protrude, and there is no danger of dropping during use.
The engraving sword described in claim 2 is configured such that the position of the blade with poor sharpness can be changed by providing a plurality of mounting holes in the ring body peripheral wall of the engraving sword described in claim 1. is there.
According to such a sculpture sword, it is a sculpture sword that can easily restore its sharpness.
The engraving sword described in claim 3 is a sculpting sword by providing an inclined surface by partially cutting the upper side of the ring body facing the blade of the engraving sword described in claim 1.
In other words, by cutting off the width of the week wall of the annulus, it was designed to enter the space where the blade was low, so that it could be used even in narrow spaces.
The engraving sword described in claim 4 bisects the ring body of the engraving sword described in claim 1 into an arc shape, and also attaches a mounting hole in a week wall on one end side thereof, and a cut surface on the other end side in half. This is a cutting blade.
According to such a sculpture sword, it is possible to change the shape of the cutting surface according to the shape of the blade.

The invention's effect

According to the present invention, the blade body of the engraving sword has an annular shape, a cutting blade is provided, and a finger grip that can change the grip position is provided on the handle, thereby obtaining the following effects. did it.
In other words, the strength of the blade body is improved by making the blade body annular, and the blade is provided so as to be inside the ring, which improves safety during use and is dangerous even when the engraving knife is dropped. There is little nature.
Since the grip position of the handle can be changed by the presence of the finger hook, it is possible to cut the inside of the three-dimensional engraving object or the back.
In addition, it is very convenient that you can handle your dominant hand by changing your finger.
Furthermore, the engraving sword of the present invention can obtain effects such as lateral cutting by pushing it sideways without changing the handle.

The present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a sword of the present invention, and FIG. 2 is an exploded perspective view showing a part of FIG.
As shown in FIG. 1, the engraving sword 10 of the present invention comprises an annular blade body 12 provided with a cutting blade and a handle 30 with a finger hook 38 joined to the annular blade body.
As shown in FIG. 2, the engraved blade 10 has an annular blade body 12 attached to one end of a handle 30 having a rod shape in a detachable state. Further, the finger hook 38 is also detachable, so that it can be attached to the opposite side as indicated by the dotted line in the figure.
The finger hook 38 is provided so as to project in a direction orthogonal to the rod-shaped handle 30 and support the hand so that the hand does not slip from the grasped handle 30. The finger hook 38 is provided with a bolt-like screw at one end of the rod body and is attached to a screw groove provided in the handle 30.
The annular blade body 12 and the handle 30 will be described in more detail with reference to the drawings. 3 is an exploded perspective view showing the annular blade body and the attaching means in FIG. 2 in an exploded manner, FIG. 4 is an explanatory view showing a modification of the annular blade body shown in FIG. 3, and FIG. 5 is a sectional view of the handle in FIG. It is explanatory drawing shown.
As shown in FIG. 3, the annular blade body 12 is composed of a ring frame like a ring, and has a blade edge 13 formed around the entire circumference of the ring body by reducing the thickness of at least one of the surroundings, and the ring body. And a plurality of mounting holes 14 provided in the peripheral wall surface.
The attachment hole 14 is a part of the attachment means 20 with the handle 30, and at least one attachment hole 14 is required on the peripheral wall. Two mounting holes 14 may be arranged opposite to each other. In the example of FIG. 3, four mounting holes 14 are provided at an angle of 90 degrees from the center axis of the ring body.
Further, in the example of FIG. 3, the blade edge 13 provided on the annular blade body 12 is provided on one periphery on the upper side in the drawing, but by providing it on the lower periphery, the blade edge on either side is used. be able to.

The attachment means 20 shown in FIG. 2 is for the purpose of joining the annular blade body 12 and the handle 30, and joins both via the attachment shaft 22 shown in FIG. As shown in FIG. 3, the mounting shaft 22 is a knob 25 for supporting and rotating the mounting shaft 22, and a first shaft that is provided at both ends of the knob 25 and is attached to the annular blade body 12. 23 and a second shaft 24 attached to the handle 30, and these shafts are bolt-shaped.
The attachment means 20 includes an attachment hole 14 provided in the annular blade body 12, an attachment shaft 22 shown in FIG. 3, and an attachment hole for attaching the attachment shaft 22 to the handle 30. The mounting shaft 22 may be integrated with the handle 30 and may be used as a mounting means by projecting the first shaft 23 directly from one end of the handle 30.
As shown in FIG. 3, according to the annular blade body 12 provided with a plurality of mounting holes 14, the blade edge 13 is replaced by replacing the first shaft 22 forming the mounting shaft 22 with any one of the plurality of mounting holes 14. The position of the cutting edge can be changed, and when the sharpness is deteriorated, the cutting edge side having a good sharpness can be used by replacing it.
In addition, manufacturing methods, such as hardening regarding an annular blade body, are the same as the method conventionally performed, The description is abbreviate | omitted.

A modification of the annular blade will be described with reference to FIG.
The annular blade body 16 shown in this modification is provided with a blade edge 17 on one peripheral wall surface of the ring body cutting surface and an inclination 18 by cutting the other cutting surface obliquely.
This inclination 18 partially narrows the width of the peripheral wall surface of the annular body forming the annular blade body 16, widens the mounting side of the mounting means 20, and narrows the peripheral wall surface on the side facing the mounting means 20. It is formed to do.
In other words, the inclined surface is formed from the mounting side of the mounting means 20 toward the cutting edge that is actually cut.
In this case, when the engraving sword 10 is cut, the height direction of the tip portion is lowered, so that the work in a narrow place can be easily performed.
The attachment means 20 is exactly the same as in the previous example.

The handle 30 will be described with reference to the drawings.
As shown in FIG. 5, the handle 30 includes a cylindrical cylindrical body 32, a bearing 36 provided on one end side of the cylindrical body, a lid 38 provided on the other end side of the cylindrical body, and an inside of the cylindrical body 32. It consists of the inserted fitting 33.
The cylindrical body 32 is made of a metal pipe material, and is disposed so as to be integrated with the cylindrical body so that the fitting body 33 does not move therein. The fitting body 33 attaches the above-described finger hook 38 and has a thread groove in a direction orthogonal to the cylindrical body 32.
A bearing 36 provided on one end side of the cylindrical body 32 is for attaching the second shaft 24 forming the mounting shaft 22 shown in FIG. 3 and has a cylindrical shape provided with a thread groove inside thereof. It is attached to the body in a fixed state. Further, a lid 38 provided on the other end side of the cylindrical body 32 closes the cylindrical body and is attached in a fixed state in the same manner as the bearing 36.
As shown in FIGS. 1 and 2, the handle 30 configured as described above has an attachment shaft 22 with an annular blade on the bearing 36 side, and a screw groove 34 provided on the peripheral wall surface of the cylinder 32. Is used by attaching a finger hook 38 corresponding to the dominant hand.
In addition, although it demonstrated using the pipe material for weight reduction of the handle 30, when it is not a cylinder, the thread groove used as the bearing 36 is directly provided in the material, or the screw hole 34 for attaching the finger hook 38 is provided. Of course it is possible.

Another engraving sword of the present invention will be described. The engraving sword 40 shown in another example of the present invention is composed of an annular blade body 42 having a cutting blade and a handle 30 with a finger hook. Only the annular blade 42 will be described with reference to the drawings. FIG. 6 is a perspective view showing an annular blade body of another example of the present invention.
As shown in FIG. 6, the annular blade 42 bisects an annular body similar to the above-described example indicated by a solid line and a dotted line into an arc shape, and one end of the mounting shaft 22 as the mounting means 20 as in the above-described example. It is attached to one end of the bisected arcuate ring.
The attachment of the annular blade 42 and the attachment shaft 22 is the same as the example shown in FIG.
Further, the opposite end of the mounting shaft 22 is cut into a V shape to provide a cutting edge 43. According to this V-shaped cutting edge 43, a narrow groove can be formed or cut into a line.
Furthermore, if the cutting edge is cut at a right angle in the same manner as the mounting side of the mounting shaft 22 instead of being V-shaped and formed into a flat cutting edge, planar cutting is possible. It is possible to change the shape.
The cutting edge 43 shown in FIG. 6 has been described as being formed at the cutting portion of the ring, but if it is also formed on each of both side surfaces along the peripheral wall surface of the belt-like ring, Not only in the case of pressing in the horizontal direction, it is possible to cut in the horizontal direction as in the above example.

Other engraving swords of the present invention will be described with reference to the drawings. The engraving sword 50 shown in the other example includes an annular blade body 52 having a cutting blade and a handle 30 having a finger hook. The handle 30 is the same as that in the above example, and thus the description thereof is omitted. The annular blade body 52 will be described with reference to the drawings.
FIG. 7 is a perspective view showing an annular blade body of another example of the present invention.
As shown in FIG. 7, the annular blade 52 presses a circular ring provided with a blade edge similar to that shown in FIG. 3 in a triangular shape from the outer side, and each protruding portion is a cutting edge for cutting. 53.
According to such a cutting edge, the arc as the cutting blade is smaller than the original circular shape, and has the same effect as using a small engraving sword.
A sword with a small cutting edge 53 can also be obtained by reducing the diameter of a circular ring, but without increasing the type of ring, it can handle a small sword with a ring of the same diameter. Since the attachment means 20 can also be used as it is, management in manufacturing is easy.
By deforming the circular ring body into a triangular shape and forming each hypotenuse and protrusion in an arc shape, the cutting edge of the conventional example is not bent at a right angle or an acute angle, so an excessive force is applied to the cutting edge. There is little addition, and there is no need to modify the cutting edge.
Moreover, if the attachment hole 54 which becomes an attachment means is provided in the intermediate part of each hypotenuse, the cutting edge which became sharp can be changed. Furthermore, it is also possible to provide the blade edge 53 on both sides of the peripheral wall forming the annular blade body as in the above example.

Such a carving sword is suitable mainly for use as a sculpture for bonsai. For example, it is used for sculptures and sculptures that produce white bones when trunks and branches break or die.
Since this engraving sword can cut the bark toward the tip of the branch, it is less likely to break the branch or carelessly sculpt it, and it can be engraved in a stable state.
The ring blade sword is also suitable for cutting the cavity inside the trunk, and in the case of press cutting, the blade may stab at the end. Because it is easy to operate, there is no such inconvenience and it fits ergonomically.
This engraving sword is used in such a manner that both side walls of the handle shown in FIG. 1 are sandwiched between the belly of the thumb and the side of the bent middle finger and the upper side of the handle is pressed by the extended index finger. That is, the handle is supported by the thumb, the index finger, and the middle finger, but if the finger hook 38 shown in FIG. 1 is supported with the inner finger hung, the hand slips from the handle during the pulling operation. Things will disappear.
Further, when the ring finger is put on the finger hook 38 in such a state, the leading end side of the handle is supported more than the state where the middle finger is put on. When the little finger is put on the finger hook 38, the tip of the handle is further supported. Therefore, when the annular blade is to be pressed strongly, the index finger is preferably positioned closer to the tip.
When the gripping position of the handle is changed and supported in this manner, it is possible to select whether to sharpen or deepen the back depending on the gripping position. In addition to the pulling, the annular blade body has a blade on the entire circumference thereof, so that it can be cut in the horizontal direction and can be used for a dominant hand by changing the mounting position of the finger hook.
The engraving sword made of this annular blade body has no blade at the straight portion and is provided in a curved state inside the ring, if any, and therefore has little danger even if it is accidentally dropped.
The handle described above is suitable for a cutting tool that is operated only by one-hand operation, and can be used not only for a sword but also for a small saw or a handle for other tools.

    It is a perspective view which shows the engraving sword of this invention.     It is a disassembled perspective view which fractures | ruptures and shows a part of FIG.     It is explanatory drawing which decomposes | disassembles and shows the annular blade body and attachment means of FIG.     It is explanatory drawing which shows the modification of an annular blade.     It is explanatory drawing which shows the cross section of the handle of FIG.     It is a perspective view which shows the annular blade body of the other example of this invention.     It is a perspective view which shows the annular blade body of the other example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Engraving blade 12 Annular blade 13 Cutting edge 14 Attachment hole 16 Annular blade 18 Inclination 20 Attachment means 22 Attachment shaft 30 Handle 38 Finger hook 42 Annular blade 52 Annular blade

Claims (4)

An annular body having an attachment means comprising an attachment shaft that can be attached to and detached from a connection attachment hole provided on a side wall of the annular body, and provided with a cutting blade on at least one cut surface of the annular body An engraving sword comprising a blade and a handle joined to the attachment means provided on the annular blade. An attachment means comprising a plurality of attachment holes provided at equal intervals on the side wall for connection and attachment shafts that can be attached to and detached from these attachment holes is provided so that the attachment position can be changed. And an annular blade body provided with a cutting blade at least every week of one cut surface of the annular body, and a handle that can be joined to the plurality of attachment means provided on the annular blade body; An engraving sword that can change the position of the cutting edge to be used by changing the joining position of the handle and the attachment means. An attachment means comprising a connecting body comprising a connecting hole on the side wall and a mounting shaft that can be attached to and detached from the mounting hole is provided on the side wall, and a cutting blade is provided on at least one cut surface of the annular body. And cutting the cutting surface of the top of the annular body facing the blade with the annular blade body and the side wall facing the attachment means provided on the annular blade body, thereby partially reducing the width of the annular body An engraving sword comprising an inclination set so as to be narrowed, and a handle to be connected to a connecting attachment means provided on the annular blade body. It consists of a ring and bisects this ring to cut it into an arc.
A cutting blade is provided on at least one of the two cut surfaces, and a side wall which is the arc surface on the other end side of the cut has a connection attachment hole and attachment means that can be attached to and detached from the attachment hole. An engraving sword comprising an annular blade and a handle joined to the attachment means provided on the annular blade.

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