JP6378410B1 - chisel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carved sword that prevents the carved sword cover from being accidentally dropped off.
A chisel 1 is mainly composed of a main body 5 to which a blade 3 is fixed, and a chisel cover 11 that is detachably attached to the main body 5 and surrounds the cutting edge 4 of the blade 3 in the mounted state. The main body 5 is formed with a recess 7 formed on the back side of the main body 5 as an engaging portion and a projection 8 protruding outward. The engraving sword cover 11 is connected to the protection unit 12 arranged around the blade 3 in the mounted state and is pivotally connected to the protection unit 12, and is engaged when rotated to the main body 5 side in the mounted state of the protection unit 12. An annular portion 17 disposed in the recess 7 as an engaged portion that engages with the joint portion, and a lock portion 13 in which a hole portion 18 that is engaged with the protrusion 8 is formed. This prevents the engraving sword cover 11 from being inadvertently dropped during use, and improves the mounting stability.
[Selection] Figure 5

Description

  The present invention relates to a carving sword, and particularly to a carving sword provided with a detachable carving sword cover.

  2. Description of the Related Art Conventionally, there is an engraved sword that includes a main body to which a blade is fixed and an engraved sword cover that is detachably attached to the main body and surrounds the blade edge of the blade in the mounted state.

  In the engraving sword disclosed in Patent Document 1, an opening having a substantially rectangular shape is formed in the body portion of the engraving sword cover, and the blade of the engraving sword is inserted into and fixed to the opening when attached.

  Patent Document 2 discloses various engagement modes of the main body and the sword cover. For example, an engagement groove is formed in two places on the pattern body (main body) of the engraving sword, and an engagement protrusion is formed on the blade edge cover (engraved sword cover). A blade tip cover is detachably attached to the tip of the handle, and similarly, a pair of notches is provided on the base of the handle body, and a claw that engages the notch is provided on the blade tip cover, An engaging portion is provided in the groove portion of the body, and a step portion inserted into the groove portion of the blade edge cover is provided with a claw that engages with the engaging portion, or a through hole in the groove portion of the handle body Provided with a hook of a locking rod that engages with the through hole at the stepped portion of the blade edge cover, or a female screw is provided in the groove portion of the handle body, and the female screw is provided on the stepped portion of the blade edge cover. The thing provided with the external thread to screw together is disclosed.

JP 2001-347794 A JP 2009-874 A

  However, all of the above-described conventional engraving swords are attached by directly engaging a part of the main body and a part of the engraving sword cover, and the attaching operation and the engaging operation are almost the same. It was performed at the same time and in the same place. Therefore, there has been room for improvement in terms of preventing the engagement from being inadvertently released and the sword cover from falling off.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a carving sword that prevents inadvertent dropping of the carving sword cover.

In order to achieve the above object, an invention according to claim 1 is a sword comprising a main body to which a blade is fixed, and a sword cover that is detachably attached to the main body and surrounds the blade edge of the blade in the mounted state. The main body is formed with an engaging portion, and the engraved sword cover is connected to the protective portion disposed around the blade in the mounted state and is rotatably connected to the protective portion. A locking portion formed with an engaged portion that engages with the engaging portion when rotated to the main body side, and is removed from the main body by releasing the engagement between the engaging portion and the engaged portion. It is something that can be done.

  If comprised in this way, it will prevent that a sword cover falls carelessly at the time of use.

  According to a second aspect of the present invention, in the configuration of the first aspect of the invention, the engaging portion includes a concave portion formed on the back side of the main body, and the concave portion is formed with a protrusion protruding outward. The engaged portion includes an annular portion that is disposed in the recessed portion in the mounted state, and the annular portion is formed with a hole portion that is locked in a retaining state at least on the rear side of the protrusion.

  If comprised in this way, it will prevent that a sword cover moves carelessly ahead.

  According to a third aspect of the present invention, in the configuration of the second aspect of the present invention, when the protrusion is provided with a step on the rear side of the base thereof, the engraving sword cover is rotated when the lock portion is rotated to enter the retaining state. The at least part of the annular portion enters the step by bending.

  If comprised in this way, rotation of the lock part in a retaining state will be controlled.

  According to a fourth aspect of the present invention, in the configuration of the first aspect of the present invention, the main body includes a guide portion that protrudes forward around the base of the blade, and the protective portion is located behind the guide portion. The end portion is formed in a ring shape surrounding the periphery of the guide portion.

  If comprised in this way, the mounting direction of the protection part of a sword cover will be controlled by the guidance | induction part.

  According to a fifth aspect of the invention, in the configuration of the invention according to any one of the first to fourth aspects, the protective portion is formed such that the front end portion thereof covers the periphery of the blade edge upward, and the lock portion is In the back side of the rear end portion of the protective portion, the connecting portion is pivotally connected around the connection portion with the protective portion. When the protective portion is attached to the main body, the lock portion is rotated in the direction in which the main body extends. The blade edge is surrounded by a space defined by the lock portion in the front parallel state and the front end portion of the protection portion.

  If comprised in this way, it will become possible to attach and remove by pinching the lock part of a front parallel state, and the front end part of a protection part.

The invention according to claim 6 is a carving sword comprising a main body to which the blade is fixed, and a carving sword cover that is detachably attached to the main body and surrounds the blade edge of the blade in the mounted state, and the main body is a part of the main body. And a sword cover that engages with the lock portion. The lock portion is configured to be movable between a first state integrated with the main body and a second state at least part of which is separated from the main body. comprising a coupling part, chisel cover, when the locking portion in the attached state of carving Kokugatana cover is in the first state, the engagement by the locking portion is engaged with the engagement portion, in a state retained in the body If then, when the locking portion is in the second state, by releasing the engagement of the lock portion and the engaged portion are those that can be removed from the body.

  If comprised in this way, it will prevent that a sword cover falls carelessly at the time of use. In addition, the sense of gripping by the user is constant regardless of whether the engraved sword cover is attached or removed.

  According to a seventh aspect of the present invention, in the configuration of the sixth aspect of the invention, the lock portion is connected to the main body so as to be rotatable rearward.

  If comprised in this way, the front of a lock part will open large.

  As described above, the invention according to claim 1 prevents the sword cover from being inadvertently dropped during use, so that the mounting stability is improved.

  In addition to the effect of the invention described in claim 1, the invention described in claim 2 prevents the sword cover from inadvertently moving forward, so that the mounting stability is further improved.

  According to the third aspect of the invention, in addition to the effect of the second aspect of the invention, since the rotation of the lock portion in the retaining state is restricted, the mounting stability is further improved.

  In addition to the effect of the invention according to any one of claims 1 to 3, the invention according to claim 4 is improved in usability because the guide portion restricts the mounting direction of the protection portion of the engraving knife cover. .

  In addition to the effects of the invention according to any one of claims 1 to 4, the invention according to claim 5 can be attached and detached by grasping the lock part in the front parallel state and the front end part of the protection part. Therefore, inadvertent touching of the blade edge during installation and removal is prevented.

  The invention according to claim 6 prevents the sword cover from being inadvertently dropped during use, so that the mounting stability is improved. In addition, the user's sense of gripping is constant regardless of whether the engraving sword cover is attached or removed, which improves usability.

  According to the seventh aspect of the invention, in addition to the effect of the sixth aspect of the invention, the front portion of the lock portion is greatly opened, so that the sword cover can be easily attached.

It is a perspective view which shows the external appearance of the mounting state of the engraving sword cover of the engraving sword by 1st Embodiment of this invention. It is a side view of the engraving sword shown in FIG. It is the rear view seen from the back side of the engraving sword shown in FIG. It is the front view seen from the blade edge | side side of the engraving sword shown in FIG. It is sectional drawing of the AA line shown in FIG. It is a perspective view which shows the external appearance of the state which removed the sword cover of the sword shown in FIG. It is sectional drawing of the location corresponding to FIG. 5 mentioned above of the engraving sword shown in FIG. It is a side view which shows the state which shifted the lock part of the engraving sword cover of the engraving sword shown in FIG. It is a perspective view which shows the external appearance of the mounting state of the engraving sword cover of the engraving sword by 2nd Embodiment of this invention, Comprising: It corresponds to FIG. It is the rear view seen from the back side of the engraving sword shown in FIG. 9, Comprising: It corresponds to FIG. It is sectional drawing of the location corresponded to FIG. 5 mentioned above of the engraving sword shown in FIG. It is a perspective view which shows the external appearance of the state which removed the engraving blade cover of the engraving blade shown in FIG. 9, Comprising: It corresponds to FIG. It is sectional drawing of the location corresponding to FIG. 5 mentioned above of the engraving sword shown in FIG.

  FIG. 1 is a perspective view showing an external appearance of a sword cover attached to a sword according to the first embodiment of the present invention, FIG. 2 is a side view of the sword shown in FIG. 1, and FIG. FIG. 4 is a rear view seen from the back side of the engraving sword shown in FIG. 1, FIG. 4 is a front view seen from the cutting edge side of the engraving sword shown in FIG. 1, and FIG. 5 is an AA line shown in FIG. FIG.

  In these figures, the direction of the arrow 71 indicates the forward direction, the direction of the arrow 72 indicates the backward direction, the direction of the arrow 73 indicates the front direction, and the direction of the arrow 74 indicates the reverse direction. Also, the direction from the front direction to the back direction may be referred to as the vertical direction.

  With reference to these drawings, the sword 1 has a blade 3 fixed to the tip thereof, a main body 5 held by the user, and a sword cover 11 surrounding the blade edge 4 of the blade 3 in the mounted state shown in these drawings. And is composed mainly of.

  The main body 5 has a long axis extending in the front-rear direction, and is made of a hard synthetic resin. On the front side of the front end portion 6, a pressing portion 9 that is warped upward toward the front is formed so that the user can easily apply force with a finger during engraving.

  As shown in FIGS. 3 and 5, a recess 7 is formed on the back surface 10 of the front end 6 of the main body 5, and a protrusion 8 that protrudes outward is provided on the recess 7. The protrusion distance of the protrusion 8 outward from the recess 7 is the same as the recess distance of the recess 7 on the back surface 10 of the main body 5, that is, the protrusion 8 is substantially flush with the back surface 10 of the main body 5 (on the same virtual surface). ). In other words, the recess 7 is formed on the back surface 10 of the front end 6 of the main body 5 so as to be recessed except for the portion corresponding to the protrusion 8.

  The engraving sword cover 11 is made of a hard synthetic resin, and is connected to the protection unit 12 disposed around the blade 3 in the mounting state shown in these drawings, and is rotatably connected to the protection unit 12. In the state, it is mainly comprised from the lock | rock part 13 in which the annular part 17 and the hole part 18 which engage with the processus | protrusion 8 of the recessed part 7 of the main body 5 are rotated. In these drawings, the lock portion 13 is engaged with the main body 5 to prevent the engraving blade cover 11 from coming off.

  The protection part 12 is substantially U-shaped in a plan view, and the front end part 15 surrounds the periphery of the cutting edge 4 of the blade 3. Further, as shown in FIGS. 2 and 5, the front end portion 15 is warped upward toward the front, and covers the periphery of the blade edge 4 (the tip of the front edge portion 15 is positioned above the blade edge 4). ) Is formed. As will be described later, the rear end portion 14 has a ring shape that covers the periphery of the blade 3 in the circumferential direction, and is attached to the front end of the front end portion 6 of the main body 5.

  The lock portion 13 is connected to the protection portion 12 on the back side of the rear end portion 14 of the protection portion 12 with a cylindrical connecting shaft 16 provided therein and extending in a direction orthogonal to the direction in which the main body 5 extends. Yes.

  For this reason, the lock portion 13 is rotatable in the front-rear direction around the connecting shaft 16. On the rear side of the rotation, the annular portion 17 of the lock portion 13 is disposed in the concave portion 7 of the main body 5 and is detached. In the stopped state, a hole 18 formed at a position corresponding to the protrusion 8 is fitted into the protrusion 8 and locked. Thus, since the hole 18 is locked at least on the rear side of the protrusion 8, the engraving knife cover 11 is prevented from inadvertently moving forward, and the mounting stability is further improved.

  Further, as shown in FIG. 5, the protrusion 8 is provided with a step 21 formed so as to be recessed forward on the rear side of the base, and the engraving sword cover 11 has the lock portion 13 in the mounted state of the protection portion 12. The claw portion 22 provided so as to protrude forward from the peripheral rear side of the hole portion 18 of the annular portion 17 enters the step 21 by bending backward when turning to the retaining state. In this way, since the rotation of the lock portion 13 in the retaining state is restricted, the mounting stability is further improved.

  Furthermore, the back surface of the annular portion 17 of the lock portion 13 is positioned substantially flush with the above-described protrusion 8 and the back surface 10 of the main body 5 in the retaining state. With this configuration, in the retaining state, the user puts his / her finger on the pressing portion 9 that warps upward on the front side of the engraving sword 1, and the back surface 10 of the flat main body 5, the protrusion 8, and the annular portion 17 on the back side. Since it can be gripped with ease, it is easy to apply force and the feeling of use is improved.

  In this way, the engraving sword 1 has the protector 12 attached to the tip of the main body 5 and protects the user's finger from the cutting edge 4 of the blade 3 during use. The hole portion 18) of the annular portion 17 can be in a retaining state where the hole portion 18) engages with the engaging portion of the main body 5 (the protrusion 8 of the concave portion 7), and the engraving blade cover 11 is prevented from accidentally falling off during use. Therefore, the mounting stability is improved.

  Next, removal of the sword cover 11 will be described.

  6 is a perspective view showing the appearance of the sword shown in FIG. 1 with the sword cover removed, and FIG. 7 is a cross-sectional view of the sword shown in FIG. 6 corresponding to FIG. 5 described above. It is.

  Referring to these drawings, when the user removes the engraving sword cover 11 from the engraving sword 1, the user hangs his / her finger (nail) on the exposed portion not covered by the lock portion 13 of the recess 7 on the back side of the main body 5. Then, the lock unit 13 is raised. As a result, the engagement between the hole portion 18 and the claw portion 22 of the annular portion 17 of the lock portion 13 and the projection 8 and the step 21 of the concave portion 7 of the main body 5 is released, and the retaining state of the engraving knife cover 11 is released. Is done. Then, by moving the protection portion 12 of the engraving sword cover 11 forward and releasing the mounting state, the engraving sword cover 11 shown in these drawings is removed.

  It should be noted that the reverse operation may be performed when the engraving blade cover 11 is shifted from the removed state to the mounted state. That is, from the removed state shown in these drawings, the protective portion 12 of the engraving sword cover 11 is moved so as to surround the blade 3 and is attached to the main body 5 to be in the attached state, and then the lock portion 13 is moved backward. By rotating and engaging with the main body 5 as described above, the retaining state shown in FIGS.

  Here, the main body 5 includes a guide portion 24 that protrudes forward around the base of the blade 3, and the protection portion 12 is formed in a ring shape whose rear end portion 14 surrounds the periphery of the guide portion 24. By comprising in this way, since the mounting | wearing direction of the protection part 12 of the sword cover 11 is controlled by the guidance | induction part 24, usability improves.

  Next, FIG. 8 is a side view showing a state in which the lock portion of the engraving sword cover of the engraving sword shown in FIG. 6 is moved to the blade edge side in the mounted state.

  Referring to FIG. 2 together with FIG. 2 and FIG. 5, when the protection portion 12 is mounted on the main body 5, the rotation of the lock portion 13 of the engraving sword cover 11 is forward (the cutting edge 4 side in the mounting state). The lock part 13 is restricted to the front parallel state (state shown in FIG. 8) in which the lock part 13 is parallel to the longitudinal direction in which the main body 5 extends. As described above, the lock portion 13 is connected to the back side of the rear end portion 14 of the protection portion 12 so as to be rotatable about the connecting shaft 16 that is a connection portion with the protection portion 12. The lock portion 13 in the state is located below the blade edge 4 in the mounted state.

  Further, as described above, the protection portion 12 is formed so that the front end portion 15 covers the periphery of the cutting edge 4 upward.

  Therefore, in the mounted state, the blade edge 4 is surrounded by a space defined by the lock part 13 in the front parallel state and the front end part 15 of the protection part 12 (not shown).

  By configuring in this way, the user can attach and remove the lock part 13 in the front parallel state and the front end part 15 of the protection part 12 from the vertical direction as indicated by the arrows 26 and 27. Therefore, careless contact with the blade edge 4 is prevented during mounting and removal.

  Next, FIG. 9 is a perspective view showing the appearance of the engraving sword cover attached to the engraving sword according to the second embodiment of the present invention, corresponding to FIG. 1, and FIG. FIG. 11 is a rear view of the engraving sword shown from the back side, corresponding to FIG. 3, and FIG. 11 is a cross-sectional view of the engraving sword shown in FIG. 9 corresponding to FIG. 5 described above.

  The engraving sword 31 according to the second embodiment has basically the same configuration as the engraving sword 1 according to the first embodiment described above.

  With reference to these drawings, the main body 35 of the engraving sword 31 includes a lock portion 33 constituting a part of the main body 35 on the back side of the front end portion 36 thereof.

  The lock portion 33 is rotatably connected to the main body 35 via a connecting shaft 46, and is configured so that the front is greatly opened and separated from the main body 35, as shown in FIGS. . Further, the lock portion 33 is configured to include an annular portion 37 in which a hole portion 38 is formed, and a claw 39 is formed so that the front side of the outer edge of the annular portion 37 extends.

  Further, the engraving sword cover 41 is formed with a protrusion 48 protruding outward (backward direction) from the back side of the rear end portion 44 thereof. The protrusion 48 is configured in a position and shape corresponding to the hole 38 when the engraving blade cover 41 is attached.

  In the mounted state of the sword cover 41 shown in these drawings, the lock portion 33 is in a first state integrated with the main body 35. Then, on the back side of the main body 35, the main body 35 and the back surface of the lock portion 33 are substantially flush (on the same virtual surface).

  At this time, the protrusion 48 of the engraving sword cover 41 is fitted into the hole 38 of the lock portion 33 of the main body 35, so that the engraving sword cover 41 is engaged with the main body 35 in a retaining state.

  Thus, as in the first embodiment, the engraving sword cover 41 of the engraving sword 31 can be in the mounted state and the retaining state when the lock portion 33 is in the first state. To prevent it from being accidentally dropped.

  Then, when the user puts a finger (nail) on the claw 39 and raises the lock portion 33 (rotates backward), the lock portion 33 shifts to a second state described below.

  12 is a perspective view showing the appearance of the sword shown in FIG. 9 with the sword cover removed, and corresponds to FIG. 6, and FIG. 13 shows the sword shown in FIG. FIG. 6 is a cross-sectional view of a portion corresponding to FIG.

  Referring to these drawings, the lock portion 33 is connected to the main body 35 via a connecting shaft 46 at the rear end portion 34 thereof, and the other portion is in a second state in which it is separated from the main body 35. At this time, the engagement between the hole portion 38 of the annular portion 37 of the lock portion 33 and the projection 48 of the engraving blade cover 41 is released, and the engraving blade cover 41 can be removed from the main body 35 as shown in these drawings. Become.

  Then, even when the engraving sword cover 41 is removed from the main body 35, the lock portion 33 can freely move to the first state integrated with the main body 35, and the main body 35 on the back side of the main body 35. And the back surface of the lock portion 33 can be substantially flush (on the same virtual surface) (not shown).

  Therefore, the user's sense of gripping the main body 35 is constant regardless of whether the engraving sword cover 41 is attached or removed. The sword cover 41 may be removed and used by those skilled in the use of the sword 31, and the one with a constant gripping feeling is easy to use and improves usability.

  Further, since the lock portion 33 is connected to the main body 35 so as to be pivotable to the rear side as described above, the front of the lock portion 33 is greatly opened, so that the sword cover 41 can be easily attached.

  As described above, the engraving sword of each embodiment of the present invention includes a lock unit in addition to the main body and the engraved sword cover, and a part of the lock unit is connected to the main body (or the engraved sword cover). Some are engaged with the sword cover (or the main body) when worn. By comprising in this way, careless detachment of the engraving sword cover is prevented, and the mounting stability is improved.

  In the above-described embodiments, the main body, the blade, the sword cover, the lock portion, and the like have a specific shape, but other shapes may be used. For example, the engraved sword cover may be a cover with a substantially U-shaped tip in plan view (a mulberry shape). The lock portion may be composed of a plurality of portions.

  In the first embodiment, the engaging portion is formed on the back side of the front end portion of the main body. However, the engaging portion may be formed on any portion of the main body. The engaged portion and the engraved sword cover including the engaged portion are formed at positions and shapes corresponding to the engaging portion in the mounted state.

  Furthermore, in the second embodiment described above, a hole as an engaging portion is provided in the lock portion formed on the back side of the front end portion of the main body, and is engaged on the back side of the rear end portion of the engraving knife cover. Although the projection as the portion is provided, it may be provided at another location.

  Furthermore, in the first embodiment described above, the hole portion has a shape corresponding to the protrusion. However, it may be any shape as long as it is locked at least on the rear side.

  Furthermore, in each of the above-described embodiments, the engaging portion includes the concave portion (projection), and the engaged portion includes the annular portion (hole portion). For example, a groove and a protrusion, a hook and a hooked portion, a male screw and a female screw, a pair of magnets, and the like can be given.

  Furthermore, in the first embodiment described above, the protrusion is flush with the back surface of the main body (on the same virtual surface), and the hole has a shape of a through hole and engages with the protrusion. However, the protrusion may not be flush with the back surface of the main body and the protrusion distance from the recess to the back direction may be low, or the hole may not have penetrated the annular portion and may cover the protrusion. In this case, in the mounted state, the annular portion has a flat surface in the rear view. Similarly, in the second embodiment, the hole may have a shape covering the protrusion.

  Furthermore, in the first embodiment described above, the step is provided at the base of the protrusion, but the step may not be provided. Further, even if the positional relationship between the protrusion and the claw portion is reversed (that is, a step is provided at the base of the hole portion and a claw portion that enters the step is formed in the protrusion), it is substantially the same. Furthermore, in the second embodiment, the step or the claw portion is not provided at the base of the protrusion or the hole, but a step may be provided.

  Furthermore, in each of the embodiments described above, the main body includes the guiding portion, but the guiding portion may not be included.

  Furthermore, in the first embodiment, the blade edge is surrounded by the space defined by the lock portion in the front parallel state and the front end portion of the protection portion in the mounted state. If it is in a positional relationship that can prevent the blade edge from being inadvertently touched when the handle and the front end portion of the protection portion are picked, such a state is substantially included. Moreover, the structure which can hold | maintain this state is more preferable. It should be noted that the present invention can be realized without configuring the blade edge to be surrounded by the space.

  Furthermore, in the second embodiment described above, the lock portion is connected to the main body so as to be pivotable backward, but other connection modes may be used. For example, the thing which can be rotated to the front side, and the aspect which the whole lock | rock part leaves | separates from a main body and is connected at the time of mounting | wearing are mentioned.

  Furthermore, in the first embodiment described above, the user hangs his / her finger on the concave portion in order to release the state where the engraving blade cover is prevented from being detached. For example, by pressing a location ahead of the connecting shaft, The lock portion may be raised (turned) like a seesaw.

  Furthermore, in each of the above-described embodiments, each part on the back side of the main body is substantially flush, but may include some steps and irregularities that do not hinder the feeling of use.

DESCRIPTION OF SYMBOLS 1, 31 ... Engraved sword 3 ... Blade 4 ... Blade edge 5, 35 ... Main body 6, 36 ... Front end 7 ... Recessed 8, 48 ... Projection 11, 41 ... Engraved sword cover 12 ... Protection part 13, 33 ... Lock part 14 , 44 ... rear end part 15 ... front end part 16, 46 ... connecting shaft 17, 37 ... annular part 18, 38 ... hole part 21 ... step 22 ... claw part 24 ... guide part 34 ... rear end part The same reference numerals indicate the same or corresponding parts.

Claims (7)

A sword comprising a main body with a blade fixed thereto, and a sword cover that is detachably attached to the main body and encloses the blade edge of the blade in a mounted state;
An engagement portion is formed on the main body,
The engraving sword cover is connected to a protection part disposed around the blade in a mounted state, and is pivotally connected to the protection part. When the cover is rotated to the main body side in the mounted state, the engagement member An engraving sword that includes a lock portion formed with an engaged portion that engages with a joint portion, and can be removed from the main body by releasing the engagement between the engaging portion and the engaged portion. . The engaging portion includes a recess formed on the back side of the main body,
The recess is formed with a protrusion protruding outward,
The engaged portion includes an annular portion disposed in the recessed portion in a mounted state,
The engraved sword according to claim 1, wherein the annular portion is formed with a hole portion that is locked in a retaining state at least on the rear side of the protrusion. The protrusion is provided with a step on the rear side of its root,
The engraving blade according to claim 2, wherein the engraving blade cover is bent when the lock portion is rotated to shift to a retaining state, so that at least a part of the annular portion enters the step. The main body includes a guide portion that protrudes forward around the base of the blade;
The engraving sword according to any one of claims 1 to 3, wherein the protection part is formed in a ring shape whose rear end part surrounds the periphery of the guide part. The protective part is formed such that its front end covers the periphery of the cutting edge upward,
The lock part is pivotally connected around the connection part with the protection part on the back side of the rear end part of the protection part,
In the mounting state of the protection part to the main body, the rotation of the lock part is restricted to a front parallel state in which the lock part is parallel to the extending direction of the main body, and the cutting edge is The engraving sword according to any one of claims 1 to 4, surrounded by a space defined by a lock portion in a parallel state and a front end portion of the protection portion. A sword comprising a main body with a blade fixed thereto, and a sword cover that is detachably attached to the main body and encloses the blade edge of the blade in a mounted state;
The main body constitutes a part of the main body, and includes a lock portion that can be shifted between a first state integrated with the main body and a second state in which at least a part of the main body is separated from the main body,
The engraving blade cover includes an engaged portion that engages with the lock portion,
The chisel cover, when in the mounted state before Symbol chisel cover the locking portion is in said first state, by the locking portion is engaged with the engaged portion, the state retained in the body engage, when the locking portion is in the second state, the said locking portion by releasing the engagement of the engaged portion can be removed from the body, the chisel.   The engraving sword according to claim 6, wherein the lock portion is connected to the main body so as to be rotatable rearward.

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