JP5361223B2 - chisel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To raise the safety and improve the ease of use when using a graver by preventing an inadvertent and careless touching of a user's fingers to the cutting edge 6a at the open section 29 of a guard 7 when gripping the graver, or by preventing a careless fall out of a guard 7 out of a holder. <P>SOLUTION: At the top section 5 of the holder, the guard 7 which holds and at the same time surrounds the blade body 6 is detachably supported and the cap 8 surrounding the blade body 6 and the guard 7 is detachably supported. Only by attaching or detaching the cap 8 storing the guard 7 out of the top section 5 of the holder, the guard 7, without even touching the guard 7, can be attached to or detached from the top section 5 of the holder. At the same time, the insertion and removal direction X to insert or to remove the guard 7 from the holder crosses and differs each other with the peripheral direction to secure the guard 7 with the holder, the securing of the guard 7 to the holder becomes hard to be released even when the force of insertion and removal direction X is added. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a sword having a guard for protecting a user's finger and a blade edge portion of a blade body.

Conventionally, in the engraving sword according to Patent Document 1 below, a loop-shaped guard that surrounds the periphery of the blade attached to the holder is detachably provided on the holder along the extending direction of the blade. The blade tips of the blade body are exposed at the open portions provided on both the front and back sides.
Japanese Patent No. 3540719

  In the above Patent Document 1, when the user's finger touches the guard when holding, carrying or using the engraving sword, the user's finger is inadequate at the blade edge portion at both open portions of the guard. There is a risk of touching the screen, making it unusable. In addition, simply applying a force in one direction (the extending direction of the blade body) to the guard may cause the guard to inadvertently fall out of the holder, resulting in poor usability.

  This invention prevents the user's finger from inadvertently touching the blade edge part at the opening part of the guard, or prevents the guard from inadvertently falling out of the holder. The purpose is to improve the user-friendliness.

The present invention will be described with reference to the drawings of the following embodiments (first embodiment shown in FIGS. 1 to 8, second embodiment shown in FIGS. 9 to 11, and third embodiment shown in FIGS. 12 to 17). .
The engraving sword according to the invention of claim 1 is configured as follows.

In the engraving sword 2, the blade body 6 is attached to the head 5 of the holder 4, and the blade body 6 extends from the head 5. The head 5 of the holder 4 is provided with a guard 7 in which wall portions 28 are arranged on both sides of the blade edge portion 6a so as to sandwich the blade edge portion 6a provided on the distal end side of the blade body 6. An opening 29 where the cutting edge 6a is exposed on at least one side of both sides of the direction Z perpendicular to the extending direction X of the blade body 6 and the direction Y connecting the both wall portions 28 is formed on the guard 7. Provided.
The guard 7 includes a detached state P7 separated from the holder 4, an intermediate state Q7 in which the guard 7 is inserted into the holder 4, and locking portions 21, 35, which prevent the guard 7 from being detached from the holder 4. It is possible to move between the detached state P7 and the intermediate state Q7 along the insertion / removal direction X in which the attachment state R7 supported by 34a, 34b is taken and the guard 7 is inserted into and removed from the holder 4. It moves between the intermediate state Q7 and the attachment state R7 along a circumferential direction S around the insertion / removal direction, which is an engagement / disengagement direction that crosses the insertion / removal direction X and locks the guard 7 to the holder 4. Take the guard movement trajectory to get. A cap 8 is provided which takes an open state L8 separated from the guard 7 and the holder 4 and a crowned state M8 supported by the guard 7 or the holder 4 and closing the open part 29 of the guard 7.
The cap 8 takes a basic attachment / detachment movement trajectory that can move along the insertion / removal direction X of the guard 7 with respect to the holder 4 between the open state L8 and the crowned state M8, and the guard 7 in the crowned state M8. The cap 8 together with the cap 7 is moved integrally by the engaging portions 32, 38, 31, 39, 34c, 48 from at least one of the attachment state R7 and the disengagement state P7 to the other state. It can move in the insertion / removal direction X of the guard 7 with respect to the holder 4 and the circumferential direction S around the insertion / removal direction, which is an engagement / disengagement direction in which the guard 7 is locked to the holder 4. Take the guard attachment / detachment movement trajectory.

The invention of claim 1 has the following effects.
(A) The double structure of the guard 7 and the cap 8 enables the cap 8 to close the opening 29 of the guard 7 where the blade edge 6a of the blade body 6 is exposed. It is possible to prevent the user's finger from inadvertently touching the blade edge 6a at the opening 29 of the guard 7 when carrying or carrying it, and the safety is improved and the usability is improved.

(B) Since the cap 8 can be separated from the guard 7 and the holder 4 in the opened state L8 and can be supported by the guard 7 or the holder 4 in the crowned state M8, the basic attachment / detachment movement trajectory can be obtained . Since the cap 8 is separated from the guard 7 and the holder 4 in the open state L8, the cap 8 does not get in the way during use, and the usability is improved.

(C) The guard 7 takes a detached state P7 separated from the holder 4 and a supported attached state R7, and the guard 7 is covered with the cap 8 in the crowned state M8. from at least one state of said attachment state R7 and disengaged P7 with 8 to move integrally with the other state, because the cap 8 can take a guard removably motion track, selectively use the presence or absence of the guard 7 In addition, the guard 7 can be attached / detached when the cap 8 is attached / detached, which improves usability.

(D) Since the basic attaching / detaching operation trajectory of the cap 8 and the guard attaching / detaching operation trajectory are different from each other , the presence / absence of the attaching / detaching of the guard 7 can be distinguished by the difference in the attaching / detaching operation of the cap 8.

(E) engaging portions 32,38,31,39,34c moving integrally with the guard 7 guard detachable operating locus of the cap 8 with the cap 8, is provided with the 48, guard 7 with the attachment and detachment of the cap 8 Can be smoothly attached and detached.

(F) The guard attaching / detaching operation trajectory of the cap 8 includes an insertion / removal direction X in which the guard 7 is inserted into and removed from the holder 4, and a relationship that intersects the insertion / removal direction X to lock the guard 7 with respect to the holder 4 It possesses a de direction S, since the insertion and removal direction X and the engaging and disengaging direction S are crossed with each other with respect to the cap 8 be applied force insertion and removal direction X, the locking of the guard 7 against the holder 4 It becomes difficult to be released and usability improves.

Since the disengagement direction in (g) guard movement trajectory is circumferentially S around the insertion and removal direction X, it is possible to easily detachable guard 7 with respect to the holder 4.

( H) Since the locking portions 21, 35, 34a , and 34b for preventing the guard 7 from being detached from the holder 4 in the attached state R7 are provided, the guard 7 is moved by the locking portions 21, 35, 34a, and 34b. It can be held on the head 5 of the holder 4.
In the invention of claim 2 based on the invention of claim 1 (corresponding only to the third embodiment), the cap 8 with respect to the head 7 of the guard 7 and the holder 4 when the cap 8 is in the crowned state M8. In order to make the relative position constant, restricting portions 32, 38, 46, 47 for limiting the basic attaching / detaching operation locus of the cap 8 are provided. In the invention of claim 2, the cap 8 can be smoothly put on the guard 7 and the head 5 of the holder 4.

Next, it described with the aid of codes drawings embodiments technical ideas other than claims.

In the third invention based on the invention of claim 1 or 2 , the guard 7 has a pair of arm portions 28 extending from the base end cylindrical portion 26, and the wall portion is the arm portion 28. The guard 7 is detachably fitted to the outer periphery of the support portion 13 formed on the head 5 of the holder 4 to which the blade body 6 is attached. Thus, the detached state P7 and the attached state R7 can be taken. In 3rd invention , the insertion structure of the base end cylinder part 26 with respect to the support part 13 can be simplified.

In the fourth invention based on the third invention , the locking portion 21 for preventing the base tube portion 26 of the guard 7 from being detached from the support portion 13 of the head 5 of the holder 4 in the attached state R7. , 35, 34a, and 34b. In the fourth invention , the guard 7 can be held on the head 5 of the holder 4 by the locking portions 21, 35, 34 a, 34 b.

In a fifth invention premised on the invention of the fourth invention , a plurality of sets of the locking portions are provided, and a specific one of the locking portions 21 provided on the support portion 13 of the head 5 of the holder 4 is provided. Only the locking portion 21 and one specific locking portion 35, 34a, 34b among the locking portions 35, 34a, 34b provided on the proximal end cylindrical portion 26 of the guard 7 constitute a set of locking portions. Locked together. In the fifth invention , the guard 7 can always be in a fixed attachment state R7 with respect to the head 5 of the holder 4.

In the sixth invention based on the fourth invention or the fifth invention , the locking portion is formed on the locking protrusion 21 formed on the outer periphery of the support portion 13 and on the inner periphery of the proximal end cylindrical portion 26. The locking projections 35 are supported between the locking projections 35, the attachment state R 7 that locks the locking projections 21 and 35, and the disengagement state P 7 that unlocks the locking projections 21 and 35. Guide portions 34a and 34b for guiding along the outer periphery of the portion 13 and the inner periphery of the proximal end tubular portion 26 are provided. In the sixth aspect of the invention , the guard 7 can be smoothly attached to and detached from the head 5 of the holder 4.

In the seventh invention based on the sixth invention , the guide portion includes a guide path 34a extending in the insertion / removal direction X so that the proximal end cylindrical portion 26 is inserted into and removed from the support portion 13, and the support portion 13. A guide path 34b extending in the circumferential direction S is made to be continuous with each other so as to engage and disengage the locking projection 35 of the base end cylindrical portion 26 with respect to the locking projection 21. In the seventh invention , the guard 7 can be easily attached to and detached from the head 5 of the holder 4.

In the eighth invention based on the seventh invention , marks 18, 19a, 19b, and 36 indicating the position of the proximal end cylinder part 26 with respect to the support part 13 are provided. In the eighth invention , the guard 7 can be easily attached to and detached from the head 5 of the holder 4.

In the ninth invention based on the eighth invention , the mark includes a protrusion 36 formed on the proximal end cylindrical portion 26 and a recess 18 formed on the support portion 13 along the guide path 34b in the circumferential direction S. And the protrusion 36 inserted into the recess 18 when the proximal tube portion 26 is inserted into the support portion 13 moves with the proximal tube portion 26 between both ends in the circumferential direction S of the recess 18. In the ninth invention , the mark can have a simple structure.

In the tenth invention (corresponding only to the third embodiment) based on the invention of claim 1 or 2 , the guard 7 is provided with an engagement recess 34c, and the cap 8 is provided with an elastic engagement protrusion 48a. As an engaging portion for moving the guard 7 together with the cap 8 by engaging the elastic engaging convex portion 48a with the engaging concave portion 34c along the locus of attaching / detaching the guard in the insertion / removal direction X. Function. In the tenth invention , the cap 8 can be moved smoothly together with the guard 7 along the guard attaching / detaching operation locus of the cap 8.

In the eleventh invention (corresponding only to the third embodiment) based on the invention of claim 1 or claim 2 or the tenth invention , a stopper 46 is provided on the head 5 of the holder 4 and the cap 8 A stopper 47 is provided on the guard 4, and the stoppers 46 and 47 are brought into contact with each other along the locus of the guard attaching / detaching direction S in the engagement / disengagement direction S, thereby restricting the movement range of the cap 8 relative to the head 5 of the holder 4. In the eleventh aspect of the invention , the cap 8 can be moved smoothly together with the guard 7 along the guard attaching / detaching operation locus of the cap 8.

  The present invention prevents the user's finger from inadvertently touching the blade edge portion 6a at the opening portion 29 of the guard 7 when the engraving sword 2 is gripped, stored, carried or used, or the holder 4 Thus, the guard 7 can be prevented from being accidentally dropped off, and the safety of the engraving sword 2 can be improved and the usability of the engraving sword 2 can be improved.

First, the engraving sword according to the first embodiment of the present invention will be described with reference to FIGS.
In the case 1 shown in FIG. 1, five engraving swords 2 and 3 are accommodated. The case 1 is accommodated in a cloth bag (not shown). 1 and 2 (a) (b) (c) (d), the engraving knife 2 is formed by bending a rod-shaped holder 4 when viewed from the front side, and the end of the head 5 of the holder 4 A blade body 6 (a large round blade, a small round blade, a triangular blade, a flat blade) is attached to the portion, and the blade body 6 extends forward from the end of the head 5, and the end of the head 5 The part is provided with a guard 7 and a cap 8. This rod-shaped holder 4 is formed in a straight line when viewed from the plane side and the bottom side. In the engraving sword 3 shown in FIG. 2 (e), the rod-shaped holder 9 is formed in a straight line when viewed from the front side as well as the flat side and the bottom side, and a blade is formed at the end of the head 10 of the holder 9. The body 11 (cutting blade) is attached and the blade body 11 extends forward from the end of the head 10, but the guard 7 and the cap 8 are not provided with the guard 7. In addition, about the blade body 11 (cutting blade), it is preferable to attach to the linear holder 9 from the holding state at the time of use.

  As shown in FIGS. 3A, 3B, and 3C, in the engraving sword 2, a cap support 12 and a guard support 13 are arranged in parallel in the front-rear direction X at the end of the head 5 of the holder 4. The guard support portion 13 is formed on the front side of the cap support portion 12 via the stepped portion 14. In the cap support portion 12, a circular outer peripheral surface 15 includes a front outer peripheral surface 15a adjacent to the stepped portion 14 and a rear outer peripheral surface 15b adjacent to the front outer peripheral surface 15a via the stepped portion 16. Is formed. A mark recess 18 extending in the circumferential direction S is formed on the upper front outer peripheral surface 15a of the two front outer peripheral surfaces 15a on both sides in the vertical direction Z so as to be open to the stepped portion 14, and this front side A locking groove 17 extending in the circumferential direction S is formed on the outer peripheral surface 15 a so as to communicate with the mark recess 18. A guard removal position mark 19a and a guard attachment position mark 19b as marks are formed on the rear outer peripheral surface 15b so as to be adjacent to the mark recess 18 in the circumferential direction S. Further, in the guard support portion 13, locking convex portions 21 are formed on the circular outer peripheral surface 20 at intervals of 180 degrees in the circumferential direction S on both sides in the vertical direction Z.

  As shown in FIGS. 3D, 3 </ b> E, and 3 </ b> F, in the engraving sword 3, only the cap support portion 22 is formed at the end portion of the head portion 10 of the holder 9. In the cap support portion 22, a circular outer peripheral surface 23 is formed with a front outer peripheral surface 23 a and a rear outer peripheral surface 23 b adjacent to the front outer peripheral surface 23 a via a stepped portion 24. A locking groove 25 extending in the circumferential direction S is formed on the front outer peripheral surface 23a.

  As shown in FIG. 4, in the guard 7, an annular portion 27 extends forward from the proximal end tubular portion 26. In the annular portion 27, a pair of arm portions 28 are extended as walls on both sides in the left-right direction Y, and open portions 29 are formed on both sides in the up-down direction Z. In this proximal end cylindrical portion 26, four small protrusions 31 are formed on the circular outer peripheral surface 30 at intervals of 90 degrees in the circumferential direction S, and left and right of the four outer peripheral surfaces 30 between the small protrusions 31. On two outer peripheral surfaces 30 on both sides in the direction Y, ridges 32 extending in the front-rear direction X are formed in the circumferential direction S at intervals of 180 degrees. The left and right ridges 32 are inclined so that the protruding dimension in the left-right direction Y becomes larger toward the mouth end edge 26 a side of the base end cylindrical portion 26. In the proximal end cylindrical portion 26, a circular inner peripheral surface 33 is formed with a guide port portion 34a as a guide path extending in the front-rear direction X from the mouth end edge 26a on both sides in the vertical direction Z. A guide path 34b extending in the circumferential direction S from the mouth portion 34a is formed, and a locking wall portion 35 as a locking convex portion is formed in the circumferential direction S at intervals of 180 degrees between the guide path 34b and the mouth edge 26a. Has been. A through hole 34 c is provided in the proximal end cylinder portion 26 between the outer peripheral surface 30 and the guide path 34 b of the inner peripheral surface 33. A mark projection 36 is formed above the mouth end edge 26 a of the base end cylindrical portion 26. The guard 7 is molded transparent or translucent from plastic or the like. It should be noted that the tip portions of both arm portions 28 may be separated from each other by the annular portion 27.

  As shown in FIG. 5, the cap 8 has a bottomed cylindrical shape, and in the cap 8, four grooves 38 extending in the front-rear direction X from the mouth edge 8 a are formed on the circular inner peripheral surface 37 in the circumferential direction S. A small protrusion 39 is formed on the inner peripheral surface 37 between the grooves 38 adjacent to the mouth end edge 8a. The mouth portion 38a of each groove 38 extends outward at the mouth edge 8a. Finger hooking ridges 40 are formed on the outer periphery of the cap 8 in accordance with the grooves 38. The cap 8 is molded transparently from plastic or the like.

  In the engraving sword 2 shown in FIG. 6A, the guard 7 shown in FIG. 4 is in a detached state P7 separated from the holder 4 shown in FIG. As shown in FIG. 6 (b), the guard support portion 13 of the holder 4 is inserted into the proximal end cylindrical portion 26 of the guard 7 from its mouth end edge 26 a, and the guard is supported on the inner peripheral surface 33 of the proximal end cylindrical portion 26. The outer peripheral surface 20 of the portion 13 is inserted and the mark projection 36 of the guard 7 is inserted in the front-rear direction X (insertion / removal direction) with respect to the mark recess 18 toward the guard removal position mark 19a. When the mouth end edge 26a is brought into contact with the stepped portion 14, the locking convex portion 21 as the locking portion of the guard support portion 13 serves as the guide portion of the proximal end cylindrical portion 26 as shown in FIG. The state is a midway state Q7 in which the guard 7 is inserted into the holder 4 by being inserted into the guide opening 34a. Next, as shown in FIG. 6 (d), the guard 7 is inserted into the guard support portion 13 so that the mark protrusion 36 of the guard 7 faces the guard attachment position mark 19 b from the guard removal position mark 19 a in the mark recess 18. When rotated in a circumferential direction S around the disengagement direction X (an engagement / disengagement direction intersecting with the insertion / removal direction X), as shown in FIG. As shown in FIGS. 6 (d) and 6 (f), it is engaged with a guide path 34b as a guide portion of the cylindrical portion 26 and locked to a locking wall portion 35 as a locking portion of the proximal end cylindrical portion 26. When the guard 7 is attached to the holder 4, the movement of the guard 7 in the front-rear direction X is restricted. In this case, the locking convex portion 21 can be visually recognized from the through hole 34c. In the middle state Q7 of the guard 7, the upper locking projection 21 of the upper and lower locking projections 21 is engaged with the upper guide port 34a of the upper and lower guide ports 34a, and the upper and lower locking projections 21a. The lower locking projection 21 of the locking projection 21 is engaged with the lower guide port 34a of the upper and lower guide ports 34a, and the upper locking projection 21 is the lower guide port 34a. And the lower locking projection 21 is not engaged in the upper guide port 34a, and the guard 7 is always in a fixed attachment state R7 with respect to the head 5 of the holder 4. be able to. In this attachment state R7, the blade edge portion 6a provided on the distal end side of the blade body 6 is disposed so that the left and right arm portions 28 of the guard 7 are sandwiched, and the blade edge portion 6a is exposed to both the upper and lower open portions 29. It protrudes slightly forward from the lower opening 29. Conversely, when the guard 7 is rotated in the circumferential direction S from the attachment state R7 to the guard support portion 13 in the circumferential direction S so as to be directed from the guard attachment position mark 19b to the guard release position mark 19a, The guard 7 enters the detached state P7 through the intermediate state Q7. In this way, the guard 7 takes the guard movement trajectory through the intermediate state Q7 between the detached state P7 and the attachment state R7.

  In the engraving sword 2 shown in FIG. 7A, the cap 8 shown in FIG. 5 is in the open state L8 separated from the guard 7 and the holder 4 in the attached state R7 in which the guard 7 is attached to the holder 4. . As shown in FIG. 7B, the annular portion 27 of the guard 7 is inserted into the cap 8 from its mouth end edge 8 a, and the outer peripheral surface 30 of the proximal end cylindrical portion 26 of the guard 7 is inserted into the inner peripheral surface 37 of the cap 8. Are inserted into the grooves 38 of the cap 8 and the protrusions 32 of the base tube portion 26 are inserted into the grooves 38 of the cap 8 to move the cap 8 in the front-rear direction X with respect to the guard 7. The mouth end edge 8a abuts on the stepped portion 16 of the cap support portion 12, and each small protrusion 39 of the cap 8 engages with the locking groove 17 of the cap support portion 12 as shown in FIG. The cap 8 is supported by the guard 7 and the head 5 of the holder 4 to close the both open portions 29, and is in a crowned state M8. In this crowned state M8, both protrusions 32 of the base end cylindrical portion 26 are engaged as engaging portions (engaging portions) in both grooves 38 of the cap 8, so that the cap 8 and the guard 7 are moved in the circumferential direction. S can be rotated integrally with S. Conversely, when the cap 8 is moved in the front-rear direction X from the crowned state M8 and removed from the guard 7, the cap 8 is in the open state L8. In this way, the cap 8 takes a basic attachment / detachment movement locus between the open state L8 and the crowned state M8.

  Next, as shown in FIG. 7 (d), the cap 8 together with the guard 7 and the guard support portion 13 so that the mark protrusion 36 of the guard 7 faces the guard removal position mark 19 a from the guard attachment position mark 19 b at the mark recess 18. In contrast, as shown in FIG. 6C, the locking projection 21 of the guard support portion 13 moves to the guide port portion 34a of the proximal end cylindrical portion 26, and the cap 8 Is in a state N8 in the middle of being detached from the holder 4. Thereafter, when the cap 8 is moved in the front-rear direction X with respect to the guard support portion 13, the guard 7 is pressed by the two protrusions 32 (engagement portions) of the guard 7 and the grooves 38 (engagement portions) of the cap 8. 7 also moves in the front-rear direction X with respect to the guard support portion 13 together with the cap 8, and the locking convex portion 21 of the guard support portion 13 comes out of the guide port portion 34a of the guard 7 as shown in FIGS. While the cap 8 is in the open state L8, the guard 7 locked and accommodated in the cap 8 is in the detached state P7. On the contrary, when the guard 7 is inserted in the front-rear direction X with respect to the guard support portion 13 together with the cap 8 from the detached state P7, the cap 8 becomes a state N8 in the middle of inserting the guard 7 into the holder 4. Thereafter, when the cap 8 is rotated in the circumferential direction S together with the guard 7, the guard 7 enters the attachment state R7 through the intermediate state Q7. In the attached state R7, since the movement of the guard 7 in the front-rear direction X is restricted, only the cap 8 in the crowned state M8 can be pulled out to the open state L8. In this way, the cap 8 takes a guard attaching / detaching operation locus between the open state L8 and the crowned state M8 through the intermediate state N8, and this guard attaching / detaching operation locus follows the guard moving locus of the guard 7.

  In the engraving sword 2 shown in FIG. 8A, the guard 7 is in an open state L8 in which the cap 8 is separated from the holder 4 in the detached state P7. As shown in FIG. 8B, the cap support 12 of the holder 4 is inserted into the cap 8 from its mouth edge 8a, and the front outer peripheral surface 15a of the cap support 12 is inserted into the inner peripheral surface 37 of the cap 8. When the cap 8 is moved and moved in the front-rear direction X with respect to the holder 4, the mouth end edge 8a of the cap 8 abuts on the stepped portion 16 of the cap support portion 12, and the cap as shown in FIG. 8 is engaged with the locking groove 17 of the cap support portion 12 as a latching portion (engagement portion), and the cap 8 is in the crowned state M8 supported by the head 5 of the holder 4. . Further, the engraving sword 3 shown in FIG. 8D is also in an open state L8 in which the cap 8 is separated from the holder 9. As shown in FIG. 8 (e), the cap support 22 of the holder 9 is inserted into the cap 8 from its mouth edge 8 a, and the front outer peripheral surface 23 a of the cap support 22 is inserted into the inner peripheral surface 37 of the cap 8. When the cap 8 is moved and moved in the front-rear direction X with respect to the holder 9, the mouth end edge 8a of the cap 8 abuts on the stepped portion 24 of the cap support portion 22, and the cap as shown in FIG. 8 (f). Each of the small projections 39 is locked in the locking groove 25 of the cap support portion 22 as a latching portion (engaging portion), and the cap 8 is in the crowned state M8 supported by the head 10 of the holder 9. . Conversely, when the cap 8 is pulled out from the crowned state M8 in the front-rear direction X with respect to the cap support portions 12 and 22, the cap 8 is in the open state L8. In this way, the cap 8 takes a basic attachment / detachment movement locus between the open state L8 and the crowned state M8.

Next, the engraving sword according to the second embodiment of the present invention will be described with reference to FIGS. 9 to 11 focusing on the differences from the first embodiment.
9A, 9B, and 9C, in the engraving sword 2, a cap support 12 and a guard support 13 are arranged in parallel in the front-rear direction X at the end of the head 5 of the holder 4. The guard support portion 13 is formed on the front side of the cap support portion 12 via the stepped portion 14. In the cap support portion 12, four small protrusions 41 are formed on the circular outer peripheral surface 15 at intervals of 90 degrees in the circumferential direction S. Of the four outer peripheral surfaces 15 between the small protrusions 41, the left and right direction Small protrusions 42 extending in the front-rear direction X are formed on the two outer peripheral surfaces 15 on both sides of Y at intervals of 180 degrees in the circumferential direction S, and two outer peripheral surfaces 15 on both sides in the vertical direction Z. A mark recess 18 extending in the circumferential direction S is formed on the upper outer peripheral surface 15 so as to be open to the stepped portion 14. On the upper outer peripheral surface 15, a guard removal position mark 19 a and a guard attachment position mark 19 b as marks are formed so as to be aligned in the circumferential direction S adjacent to the mark recess 18. Further, in the guard support portion 13, locking convex portions 21 are formed on the circular outer peripheral surface 20 at intervals of 180 degrees in the circumferential direction S on both sides in the vertical direction Z.

  As shown in FIGS. 9D, 9 </ b> E, and 9 </ b> F, in the engraving sword 3, only the cap support portion 22 is formed at the end portion of the head portion 10 of the holder 9. In the cap support portion 22, four small protrusions 43 are formed on the circular outer peripheral surface 23 at intervals of 90 degrees in the circumferential direction S. Of the four outer peripheral surfaces 23 between the small protrusions 43, the horizontal direction Small protrusions 44 extending in the front-rear direction X are formed in the circumferential direction S at intervals of 180 degrees on two outer peripheral surfaces 23 on both sides of Y.

  In the engraving sword 2 shown in FIG. 10A, the cap 8 shown in FIG. 5 is in the open state L8 separated from the guard 7 and the holder 4 in the attached state R7 in which the guard 7 is attached to the holder 4. . As shown in FIG. 10 (b), the annular portion 27 of the guard 7 is inserted into the cap 8 from the mouth end edge 8 a, and the outer peripheral surface 30 of the proximal end cylindrical portion 26 of the guard 7 is inserted into the inner peripheral surface 37 of the cap 8. 10 is inserted into both grooves 38 of the cap 8 from the mouth portion 38a, and the cap 8 is moved in the front-rear direction X with respect to the guard 7 as shown in FIG. As shown in c), the small protrusions 39 of the cap 8 are engaged with the small protrusions 31 of the proximal end cylindrical portion 26 as latching portions (engaging portions), and the cap 8 is supported by the guard 7 and both of the openings are opened. The crowned state M8 that closes the portion 29 is obtained. In this crowned state M8, both protrusions 32 of the base end cylindrical portion 26 are engaged as engaging portions (engaging portions) in both grooves 38 of the cap 8, so that the cap 8 and the guard 7 are moved in the circumferential direction. S can be rotated integrally with S. Conversely, when the cap 8 is moved in the front-rear direction X from the crowned state M8 and removed from the guard 7, the cap 8 is in the open state L8. In this way, the cap 8 takes a basic attachment / detachment movement locus between the open state L8 and the crowned state M8. At this time, since the lengths in the front-rear direction X are set to be substantially the same for both grooves 38 of the cap 8 and both protrusions 32 of the proximal end cylinder portion 26, the cap support portion 12 of the head 5 of the holder 4. The cap 8 is not crowned.

  Next, as shown in FIG. 10 (d), the cap 8 together with the guard 7 and the guard support portion 13 so that the mark protrusion 36 of the guard 7 faces the guard removal position mark 19 a from the guard attachment position mark 19 b at the mark recess 18. , The locking convex portion 21 of the guard support portion 13 moves to the guide port portion 34a of the proximal end cylindrical portion 26, and the cap 8 is in the middle of the removal of the guard 7 from the holder 4. State N8 is entered. Thereafter, when the cap 8 is moved in the front-rear direction X with respect to the guard support portion 13, the guard 7 and the cap 8 together with the cap 8 are guarded by the engagement between the small projections 39 of the cap 8 and the small projections 31 of the proximal end cylindrical portion 26. It moves in the front-rear direction X with respect to the support portion 13, the locking convex portion 21 of the guard support portion 13 comes out of the guide opening 34 a of the guard 7, and the cap 8 is in the open state L 8 and is locked in the cap 8. The guard 7 housed in this state is in the detached state P7. On the contrary, when the guard 7 is inserted in the front-rear direction X with respect to the guard support portion 13 together with the cap 8 from the detached state P7, the cap 8 becomes a state N8 in the middle of inserting the guard 7 into the holder 4. Thereafter, when the cap 8 is rotated in the circumferential direction S together with the guard 7, the guard 7 enters the attachment state R7 through the intermediate state Q7. In the attached state R7, since the movement of the guard 7 in the front-rear direction X is restricted, only the cap 8 in the crowned state M8 can be pulled out to the open state L8. In this way, the cap 8 takes a guard attaching / detaching operation locus between the open state L8 and the crowned state M8 through the intermediate state N8, and this guard attaching / detaching operation locus follows the guard moving locus of the guard 7. At this time, since the lengths in the front-rear direction X are set to be substantially the same for both grooves 38 of the cap 8 and both protrusions 32 of the proximal end cylinder portion 26, the cap support portion 12 of the head 5 of the holder 4. The cap 8 is not crowned.

  In the engraving sword 2 shown in FIG. 11A, the guard 7 is in the open state L8 where the cap 8 is separated from the holder 4 in the detached state P7. As shown in FIG. 11 (b), the cap support 12 of the holder 4 is inserted into the cap 8 from its mouth edge 8 a and the outer peripheral surface 15 of the cap support 12 is inserted into the inner peripheral surface 37 of the cap 8. At the same time, when the small protrusions 42 of the cap support portion 12 are inserted into the grooves 38 of the cap 8 from the openings 38a and the cap 8 is moved in the front-rear direction X with respect to the holder 4, the outer peripheral surface 15 is formed. The mouth edge 8a of the cap 8 abuts against the flange 15c, and the small protrusions 39 of the cap 8 are engaged with the small protrusions 41 of the cap support 12 as shown in FIG. The crowned state M8 supported by the holder 4 is obtained. Further, the engraving sword 3 shown in FIG. 11D is also in an open state L8 in which the cap 8 is separated from the holder 9. As shown in FIG. 11 (e), the cap support portion 22 of the holder 9 is inserted into the cap 8 from its mouth edge 8 a and the outer peripheral surface 23 of the cap support portion 22 is inserted into the inner peripheral surface 37 of the cap 8. At the same time, when both small protrusions 44 of the cap support portion 22 are inserted into both grooves 38 of the cap 8 from the mouth portion 38a and the cap 8 is moved in the front-rear direction X with respect to the holder 9, the outer peripheral surface 23 is formed. The mouth edge 8a of the cap 8 comes into contact with the flange portion 23c, and the small protrusions 39 of the cap 8 are locked to the small protrusions 43 of the cap support portion 22 as shown in FIG. The crowned state M8 supported by the holder 9 is obtained. Conversely, when the cap 8 is pulled out from the crowned state M8 in the front-rear direction X with respect to the cap support portions 12 and 22, the cap 8 is in the open state L8. In this way, the cap 8 takes a basic attachment / detachment movement locus between the open state L8 and the crowned state M8.

  Next, a sword according to a third embodiment of the present invention will be described with reference to FIGS. 12, 13, 14, 15, 16, and 17 correspond to FIGS. 3, 4, 5, 6, 7, and 8 in the first embodiment, respectively.

  12A, 12B, and 12C, in the engraving sword 2, a cap support 12 and a guard support 13 are arranged in parallel in the front-rear direction X at the end of the head 5 of the holder 4. The guard support portion 13 is formed on the front side of the cap support portion 12 via the stepped portion 14. In the cap support 12, a mark recess 18 extending in the circumferential direction S is formed on the upper side of the circular outer peripheral surface 15 so as to be opened to the stepped portion 14. Further, in the guard support portion 13, locking convex portions 21 are formed on the circular outer peripheral surface 20 at intervals of 180 degrees in the circumferential direction S on both sides in the vertical direction Z. As shown in FIGS. 12D, 12 </ b> E, and 12 </ b> F, in the engraving sword 3, only the cap support portion 22 is formed at the end portion of the head portion 10 of the holder 9. In the cap support portion 22, small protrusions 44 extending in the front-rear direction X are formed at 180 ° intervals in the circumferential direction S on both sides of the outer peripheral surface 23 in the left-right direction Y. In the cap support portion 12 and the cap support portion 22, the circular outer peripheral surfaces 15 and 23 are hooked portions (engagement portions) in the entire circumferential direction S at the boundary portions with the head portions 5 and 10 of the holder 4. A locking groove 45 is formed, and a locking protrusion 46 (regulator or stopper) is formed above the locking groove 45.

  As shown in FIG. 13, in the guard 7, an annular portion 27 extends forward from the proximal end tubular portion 26. In the annular portion 27, a pair of arm portions 28 are extended as walls on both sides in the left-right direction Y, and open portions 29 are formed on both sides in the up-down direction Z. In the proximal end cylindrical portion 26, protrusions 32 (regulating portions) extending in the front-rear direction X on both sides in the left-right direction Y are formed on the circular outer peripheral surface 30 at intervals of 180 degrees in the circumferential direction S. In the proximal end cylindrical portion 26, a circular inner peripheral surface 33 is formed with a guide port portion 34a as a guide path extending in the front-rear direction X from the mouth end edge 26a on both sides in the vertical direction Z. A guide path 34b extending in the circumferential direction S from the mouth portion 34a is formed, and a locking wall portion 35 as a locking convex portion is formed in the circumferential direction S at intervals of 180 degrees between the guide path 34b and the mouth edge 26a. Has been. A through hole 34 c (engagement portion or engagement recess) is provided in the base end cylindrical portion 26 between the outer peripheral surface 30 and the guide path 34 b of the inner peripheral surface 33. A mark projection 36 is formed above the mouth end edge 26 a of the base end cylindrical portion 26. The guard 7 is molded transparent or translucent from plastic or the like. It should be noted that the tip portions of both arm portions 28 may be separated from each other by the annular portion 27.

  As shown in FIG. 14, the cap 8 has a bottomed cylindrical shape, and in the cap 8, a circular inner peripheral surface 37 has two grooves 38 (regulating portions or extending from the mouth edge 8a in the front-rear direction X). Engaging portions) are formed at intervals of 180 degrees in the circumferential direction S, and three small protrusions 39 (engaging portions) are formed at intervals of 120 degrees in the circumferential direction S adjacent to the mouth edge 8a. Yes. Finger hooking ridges 40 are formed on the outer periphery of the cap 8 in accordance with the grooves 38. On the upper side of the mouth end edge 8a of the cap 8, a locking recess 47 (regulator or stopper) is formed. A slit 49 is provided on the inner peripheral surface 37 of the cap 8 so that a cantilever-like locking tongue piece 48 (engagement portion) has elasticity in the vertical direction Z only on the lower side of both sides in the vertical direction Z. A locking projection 48 a (elastic engagement convex portion) is formed inside the locking tongue piece 48. The cap 8 is molded transparently from plastic or the like. In addition, a cantilever-like locking tongue piece portion 48 is formed on both sides in the vertical direction Z or at a plurality of locations in the circumferential direction on the inner peripheral surface 37 of the cap 8, or the cantilever-like locking tongue piece portion 48 is formed on the inner peripheral surface 37. Alternatively, a doubly-supported locking tongue piece 48 may be formed.

  In the engraving sword 2 shown in FIG. 15A, the guard 7 shown in FIG. 13 is in a detached state P7 separated from the holder 4 shown in FIG. As shown in FIG. 15 (b), the guard support portion 13 of the holder 4 is inserted into the base end cylindrical portion 26 of the guard 7 from the mouth end edge 26 a, and the guard is supported on the inner peripheral surface 33 of the base end cylindrical portion 26. The outer peripheral surface 20 of the portion 13 is inserted and the mark protrusion 36 of the guard 7 is inserted in the insertion / removal direction X with respect to the mark recess 18 so that the mouth end edge 26a of the base end tubular portion 26 is brought into contact with the stepped portion 14 Then, as shown in FIG. 15 (c), the locking convex portion 21 as the locking portion of the guard support portion 13 is engaged with the guide port portion 34 a as the guiding portion of the proximal end cylindrical portion 26, and the guard 7 is The intermediate state Q7 is inserted into the holder 4. Next, as shown in FIG. 15 (d), when the guard 7 is rotated with respect to the guard support portion 13 in a circumferential direction S around the insertion / removal direction X (an engagement / disengagement direction intersecting the insertion / removal direction X). While the mark projection 36 of the guard 7 moves in the mark recess 18, the locking projection 21 of the guard support portion 13 moves to the guide path 34 b as the guide portion of the proximal end cylinder portion 26 as shown in FIG. Attachment in which the guard 7 is attached to the holder 4 as shown in FIGS. 15 (d) and 15 (f). The movement of the guard 7 in the front-rear direction X is restricted in the state R7. In this case, the locking convex portion 21 can be visually recognized from the through hole 34c. In the middle state Q7 of the guard 7, the upper locking projection 21 of the upper and lower locking projections 21 is engaged with the upper guide port 34a of the upper and lower guide ports 34a, and the upper and lower locking projections 21a. The lower locking projection 21 of the locking projection 21 is engaged with the lower guide port 34a of the upper and lower guide ports 34a, and the upper locking projection 21 is the lower guide port 34a. And the lower locking projection 21 is not engaged in the upper guide port 34a, and the guard 7 is always in a fixed attachment state R7 with respect to the head 5 of the holder 4. be able to. In this attachment state R7, the blade edge portion 6a provided on the distal end side of the blade body 6 is disposed so that the left and right arm portions 28 of the guard 7 are sandwiched, and the blade edge portion 6a is exposed to both the upper and lower open portions 29. It protrudes slightly forward from the lower opening 29. On the contrary, when the guard 7 is rotated in the circumferential direction S with respect to the guard support portion 13 from the attachment state R7 and then pulled out in the front-rear direction X, the guard 7 enters the detached state P7 through the intermediate state Q7. In this way, the guard 7 takes the guard movement trajectory through the intermediate state Q7 between the detached state P7 and the attachment state R7.

  In the engraving sword 2 shown in FIG. 16A, the cap 8 shown in FIG. 14 is in an open state L8 separated from the guard 7 and the holder 4 in an attached state R7 in which the guard 7 is attached to the holder 4. . As shown in FIG. 16 (b), the annular portion 27 of the guard 7 is inserted into the cap 8 from its mouth end edge 8 a, and the outer peripheral surface 30 of the proximal end cylindrical portion 26 of the guard 7 is inserted into the inner peripheral surface 37 of the cap 8. Are inserted into the grooves 38 of the cap 8 and the protrusions 32 of the base tube portion 26 are inserted into the grooves 38 of the cap 8 to move the cap 8 in the front-rear direction X with respect to the guard 7. The mouth edge 8a abuts against the head 5 of the holder 4 at the cap support 12 and the locking projection 46 of the cap support 12 is engaged with the locking recess 47 of the cap 8, and FIG. As shown in FIG. 16D, each small protrusion 39 of the cap 8 is locked as a latching portion (engagement portion) in the locking groove 45 of the cap support portion 12 as shown in FIG. The locking protrusion 48 a of the locking tongue piece 48 is engaged with the lower through hole 34 c of the guard 7. , The target crown state M8 cap 8 closing the both open portion 29 is supported by the head 5 of the guard 7 and the holder 4. In this crowned state M8, both protrusions 32 of the base end cylindrical portion 26 are engaged as engaging portions (engaging portions) in both grooves 38 of the cap 8, so that the cap 8 and the guard 7 are moved in the circumferential direction. S can be rotated integrally with S. Conversely, when the cap 8 is moved in the front-rear direction X from the crowned state M8 and removed from the guard 7, the cap 8 is in the open state L8. In this way, the cap 8 takes a basic attachment / detachment movement locus between the open state L8 and the crowned state M8.

  Next, as shown in FIG. 16 (e), when the cap 8 is rotated together with the guard 7 in the circumferential direction S with respect to the guard support portion 13, the mark protrusion 36 of the guard 7 moves in the mark recess 18 and the cap support. While the locking projection 46 of the portion 12 moves relative to the locking recess 47 of the cap 8, the locking projection 21 of the guard support portion 13 guides the proximal end tubular portion 26 as shown in FIG. The cap 8 is moved to the mouth 34a, and the cap 8 is in an intermediate state N8 where the guard 7 is detached from the holder 4. Thereafter, when the cap 8 is moved in the front-rear direction X with respect to the guard support portion 13, the engagement between the locking protrusion 48 a of the locking tongue piece portion 48 of the cap 8 and the lower through hole 34 c of the guard 7 causes the guard 8 to move. 7 also moves in the front-rear direction X with respect to the guard support portion 13 together with the cap 8, and the locking convex portion 21 of the guard support portion 13 comes out of the guide port portion 34a of the guard 7 and is shown in FIGS. As shown, the cap 8 is in the open state L8, and the guard 7 that is locked and accommodated in the cap 8 is in the detached state P7. A bulging portion 8b is formed on the lower side of the cap 8 so that the blade edge portion 6a of the blade body 6 accommodated in the cap 8 does not hit the inner surface of the cap 8 due to the space in the bulging portion 8b. It has become. Further, the inside of the cap 8 is formed along the outer shape of the guard 7, and the guard 7 can only be fitted to the cap 8 only one way. On the contrary, when the guard 7 is inserted in the front-rear direction X with respect to the guard support portion 13 together with the cap 8 from the detached state P7, the cap 8 becomes a state N8 in the middle of inserting the guard 7 into the holder 4. Thereafter, when the cap 8 is rotated in the circumferential direction S together with the guard 7, the guard 7 enters the attachment state R7 through the intermediate state Q7. In the attached state R7, since the movement of the guard 7 in the front-rear direction X is restricted, only the cap 8 in the crowned state M8 can be pulled out to the open state L8. In this way, the cap 8 takes a guard attaching / detaching operation locus between the open state L8 and the crowned state M8 through the intermediate state N8, and this guard attaching / detaching operation locus follows the guard moving locus of the guard 7.

  In the engraving sword 2 shown in FIG. 17A, the guard 7 is in an open state L8 in which the cap 8 is separated from the holder 4 in the detached state P7. As shown in FIG. 17 (b), the cap support 12 of the holder 4 is inserted into the cap 8 from its mouth edge 8 a and the outer peripheral surface 15 of the cap support 12 is inserted into the inner peripheral surface 37 of the cap 8. Then, when the cap 8 is moved in the front-rear direction X with respect to the holder 4, the mouth end edge 8 a of the cap 8 abuts against the head 5 of the holder 4 at the cap support portion 12, and the cap protrusion of the cap support portion 12. The portion 46 is engaged with the engaging recess 47 of the cap 8, and each small protrusion 39 of the cap 8 is engaged with the engaging groove 45 of the cap support portion 12 as shown in FIG. The cap 8 is in the crowned state M8 supported by the head 5 of the holder 4. Also, the engraving sword 3 shown in FIG. 17D is in an open state L8 in which the cap 8 is separated from the holder 9. As shown in FIG. 17 (e), the cap support 22 of the holder 9 is inserted into the cap 8 from its mouth edge 8 a and the outer peripheral surface 23 of the cap support 22 is inserted into the inner peripheral surface 37 of the cap 8. At the same time, when both small protrusions 44 of the cap support portion 22 are inserted into both grooves 38 of the cap 8 from the mouth portion 38 a and the cap 8 is moved in the front-rear direction X with respect to the holder 9, 8a is in contact with the head 10 of the holder 9 by the cap support 22 and the locking projection 46 of the cap support 22 is engaged with the locking recess 47 of the cap 8, as shown in FIG. In this way, each small protrusion 39 of the cap 8 is locked as a latching portion (engaging portion) in the locking groove 45 of the cap support portion 12, and the cap 8 is supported by the head portion 10 of the holder 9. M8. Conversely, when the cap 8 is pulled out from the crowned state M8 in the front-rear direction X with respect to the cap support portions 12 and 22, the cap 8 is in the open state L8. In this way, the cap 8 takes a basic attachment / detachment movement locus between the open state L8 and the crowned state M8.

  As described above, when the cap 8 is put on the heads 5 and 10 of the guard 7 and the holders 4 and 9 in the crowned state M8 by the basic attaching / detaching operation trajectory of the cap 8, the heads of the guard 7 and the holders 4 and 9 are placed. If the relative position of the cap 8 with respect to the portions 5 and 10 is not constant, the protrusions 32 of the guard 7 and the grooves 38 of the cap 8 do not match each other, and the locking protrusions 46 of the holders 4 and 9 and the cap 8 Since the locking recess 47 does not match each other, the cap 8 cannot be put on the guard 7 or the heads 5 and 10 of the holders 4 and 9.

This embodiment has the following effects.
* When enclosing the blade body 6 with the guard 7 in the engraving sword 2, the opening portion 29 of the guard 7 necessary for exposing the blade edge portion 6 a of the blade body 6 can be further closed by the cap 8. Therefore, it is possible to prevent the user's finger from inadvertently touching the blade edge portion 6a at the opening portion 29 of the guard 7, and it is possible to improve the safety and improve the usability when the engraving sword 2 is used.

  * By simply attaching / detaching the cap 8 containing the guard 7 to / from the holder 4, the guard 7 can be attached / detached to / from the holder 4 without touching the guard 7. Therefore, the safety can be improved and the usability can be improved when the engraving sword 2 is used.

* Since the cap 8 takes a different basic attachment / detachment operation locus and a guard attachment / detachment operation locus, the presence / absence of attachment / detachment of the guard 7 can be distinguished by the difference in the attachment / detachment operation of the cap 8.
* Since the insertion / removal direction X for inserting / removing the guard 7 with respect to the holder 4 and the circumferential direction S for locking are different from each other, even if a force in the insertion / removal direction X is applied to the guard 7, the holder 4 It becomes difficult for the guard 7 to be locked. Therefore, the safety can be improved and the usability can be improved when the engraving sword 2 is used.

  * Combined with the above-described blocking effect of the cap 8 with respect to the guard 7 and the effect of preventing the guard 7 from being unlocked with respect to the holder 4, the safety can be further improved and the usability can be improved when the engraving knife 2 is used. .

In addition to the first to third embodiments, for example, the following configuration may be used.
The guard 7 is attached integrally so that it cannot be attached to and detached from the head 5 of the holder 4, or the guard 7 is formed integrally with the head 5 of the holder 4.

Of the upper and lower open portions 29 of the guard 7, only the lower open portion 29 from which the blade edge portion 6a protrudes is provided.
In the embodiment, in the crowned state M8 where the cap 8 is put on the guard 7, the guard 7 can be moved integrally from the attached state R7 to the detached state P7 by the cap 8, and from the detached state P7 to the attached state R7. However, only one of them may be performed.

  The cap 8 may be provided with a wall that closes at least the lower opening 29 of the upper and lower opening 29 of the guard 7, and other portions than the wall may be opened. In addition, you may form the hole of the grade which a finger | toe does not enter in the wall of this cap 8. FIG.

  In the second embodiment, each small protrusion 39 of the cap 8 is locked as a latching portion to each small protrusion 31 of the proximal end tubular portion 26 of the guard 7. You may provide the recessed part to which 31 is latched.

  In the embodiment, as the mark, the mark protrusion 36 is formed on the base end cylinder part 26 of the guard 7, and the mark recess 18, the guard release position mark 19 a, and the guard attachment position mark 19 b are formed on the cap support part 12 of the holder 4. However, conversely, a mark recess, a guard removal position mark, and a guard attachment position mark are formed on the proximal end cylindrical portion 26 of the guard 7, and a mark protrusion is formed on the cap support portion 12 of the holder 4. Good.

The cap 8 and the guard 7 may be held by the holder 4 or the case 1 when separated from the holder 4.
The cap may be supported so as to be movable between the crowned state and the opened state without being separated from the holder.

  Although not shown in the figure, the guard 7 is inserted sideways in the vertical direction Z (insertion / removal direction) or the left / right direction Y (insertion / removal direction) while being kept sideways along the blade body 6 and is engaged in the front / rear direction X (engagement / removal direction) escape. Alternatively, the guard 7 is inserted / removed in the up / down direction Z (insertion / removal direction) or the left / right direction Y (insertion / removal direction) in a state where the guard 7 intersects the blade body 6, and the guard 7 is placed between the intersecting state and the lateral state. Rotate in the disengagement direction with to disengage.

It is a top view which shows the state which accommodated the multiple types of engraving sword concerning 1st Embodiment in the case. (A) (b) (c) (d) (e) is a top view which shows the state which took out each engraving knife concerning 1st Embodiment from a case, respectively, and removed the cap. (A) is a partial top view which shows only a holder in the engraving sword with a guard shown in FIG. 2 (a), (b) is also a partial front view, (c) is also a side view, and (d) These are the fragmentary top views which show only a holder in the engraving knife without a guard shown in FIG.2 (e), (e) is a partial front view similarly, (f) is a side view similarly. (A) is a perspective view which shows only a guard in the engraving sword with a guard shown to FIG. 2 (a) (b) (c) (d), (b) is also a front view, (c) is also a plane (D) is also a bottom view, (e) is also a side view, (f) is a partial sectional view taken along line A1-A1 of (b), and (g) is a view of (b). It is an A2-A2 line fragmentary sectional view. (A) is a perspective view which shows only a cap in each engraving sword shown in FIG. 1, (b) is also a front view, (c) is also a side view, and (d) is B of (b). FIG. (A) is a partial top view which shows the state which isolate | separated the guard from the holder in the engraving knife with a guard shown to Fig.2 (a), (b) is a partial top view which shows the state in the middle of attaching / detaching a guard with respect to a holder similarly (C) is a partial cross-sectional view of (b) seen from the plane side, (d) is a partial plan view showing a state in which the guard is similarly attached to the holder, and (e) is (d) ) Is a partial cross-sectional view seen from the plane side, and (f) is a partial front view showing a state in which a guard is similarly attached to the holder. (A) is a partial top view which shows the state which isolate | separated the cap from the holder which attached the guard in the engraving sword with a guard shown to Fig.2 (a), (b) is a cap with respect to the holder which attached the guard similarly. It is the partial top view which shows the state which attached, (c) is the fragmentary sectional view which looked at (b) from the plane side, (d) separates the cap and the guard with respect to the holder where the guard is similarly attached It is a fragmentary top view which shows the state in the middle of doing, (e) is a fragmentary top view which shows the state which isolate | separated the cap with the guard similarly with respect to a holder, (f) is the cross section which looked at the cap of (e) from the plane side FIG. (A) is a partial top view which shows the state which isolate | separated the cap from the holder which isolate | separated the guard in the engraving knife with a guard shown to Fig.2 (a), (b) removes a cap with respect to the holder which also separated the guard. It is the partial top view which shows the state which wore, (c) is the fragmentary sectional view which looked at (b) from the plane side, (d) is the cap from the holder in the engraving knife without the guard shown in FIG. It is the fragmentary top view which shows the state which isolate | separated, (e) is the fragmentary top view which shows the state which similarly attached the cap with respect to the holder, (f) is the fragmentary sectional view which looked at (e) from the plane side. is there. (A) is a partial top view which shows only a holder in the engraving knife with a guard concerning 2nd Embodiment, (b) is a partial front view, (c) is a side view, (d) It is a fragmentary top view which shows only a holder in the sword without a guard concerning 2nd Embodiment, (e) is a partial front view, (f) is a side view. (A) is a partial top view which shows the state which isolate | separated the cap from the holder which attached the guard in the engraving knife with a guard concerning 2nd Embodiment, (b) is a cap with respect to the holder which attached the guard similarly. It is the partial top view which shows the state which attached, (c) is the fragmentary sectional view which looked at (b) from the plane side, (d) isolate | separates a cap with a guard with respect to the holder which also attached the guard. It is the fragmentary top view which shows a state in the middle, (e) is a fragmentary top view which similarly shows the state which isolate | separated the cap with the guard with respect to the holder, (f) is sectional drawing which looked at the cap of (e) from the plane side It is. (A) is a partial top view which shows the state which isolate | separated the cap from the holder which isolate | separated the guard in the engraving knife with a guard concerning 2nd Embodiment, (b) attaches a cap with respect to the holder which also separated the guard (C) is a partial cross-sectional view of (b) seen from the plane side, and (d) is a diagram of the cap without the guard in the engraving knife without guard according to the second embodiment. It is the partial top view which shows a state, (e) is the partial top view which shows the state which similarly attached the cap with respect to the holder, (f) is the fragmentary sectional view which looked at (e) from the plane side. (A) is a partial top view which shows only a holder in the engraving sword with a guard corresponding to FIG. 2 (a) among each engraving sword concerning 3rd Embodiment, (b) is also a partial front view, c) is also a side view, and (d) is a partial plan view showing only the holder in the engraving sword without guard corresponding to FIG. 2 (e) among the engraving swords according to the third embodiment, (e) Is a partial front view, and (f) is a side view. (A) is a perspective view which shows only a guard in the engraving sword with a guard corresponding to FIG. 2 (a) (b) (c) (d) among each engraving sword concerning 3rd Embodiment, (b) It is also a front view, (c) is also a plan view, (d) is also a bottom view, (e) is also a side view, and (f) is a partial cross section taken along line C1-C1 in (b). It is a figure and (g) is the C2-C2 line | wire partial sectional view of (b). (A) is a perspective view which shows only a cap in each engraving sword concerning 3rd Embodiment, (b) is a bottom view, (c) is also a top view, (d) is also a plane side (E) is a side view of (c). (A) is a partial top view which shows the state which isolate | separated the guard from the holder in the engraving knife with a guard corresponding to FIG. 2 (a) among each engraving knife concerning 3rd Embodiment, (b) is also in a holder It is a fragmentary top view which shows the state in the middle of attaching / detaching a guard, (c) is a fragmentary sectional view which looked at (b) from the plane side, (d) shows the state where the guard was similarly attached to the holder. It is a fragmentary top view, (e) is the fragmentary sectional view which looked at (d) from the plane side, (f) is the fragmentary front view which shows the state which similarly attached the guard with respect to the holder. (A) is a partial top view which shows the state which isolate | separated the cap from the holder which attached the guard in the engraving sword with a guard corresponding to FIG. 2 (a) among each engraving sword concerning 3rd Embodiment, (b) ) Is a partial plan view showing a state in which a cap is attached to a holder to which a guard is also attached, (c) is a partial cross-sectional view of (b) seen from the plane side, and (d) is (b) ) Is a partial sectional view as seen from the front side, (e) is a partial plan view showing a state in the middle of separating the cap together with the guard with respect to the holder with the guard attached, and (f) is also with respect to the holder It is the fragmentary top view which shows the state which isolate | separated the cap with the guard, (g) is sectional drawing which looked at the cap of (f) from the plane side, (h) looked at the cap of (f) from the front side. It is sectional drawing. (A) is a partial top view which shows the state which isolate | separated the cap from the holder which isolate | separated the guard in the engraving sword with a guard corresponding to FIG. 2 (a) among each engraving sword concerning 3rd Embodiment, (b) FIG. 4 is a partial plan view showing a state where a cap is attached to a holder from which a guard is separated, (c) is a partial cross-sectional view of (b) seen from the plane side, and (d) is a third embodiment. It is a fragmentary top view which shows the state which isolate | separated the cap from the holder in the engraving knife without a guard corresponding to FIG.2 (e) among each engraving sword concerning (e), (e) is also the state which attached the cap with respect to the holder. It is the partial top view shown, (f) is the fragmentary sectional view which looked at (e) from the plane side.

Explanation of symbols

  2 ... Engraved sword, 4 ... Holder, 5 ... Head of holder, 6 ... Blade, 6a ... Cutting edge, 7 ... Guard, 8 ... Cap, 21 ... Locking protrusion as a locking portion of the head of the holder , 28... Arm part as a guard wall part, 29... Opening part, 31... Small protrusion as guard guard part (engagement part), 32. Guard restriction part (engagement part) and cap 34a ... guide opening as a guard locking part, 34b ... guide path as a guard locking part, 34c ... through-hole as a guard engaging part, 35 ... guard locking part , 38 ... a groove as a cap latching part (engagement part) or a cap restricting part, 39 ... a small protrusion as a cap latching part (engagement part), 46 ... regulation on the cap Locking protrusion as a portion, 47... Locking recess as a cap restricting portion, 48... Cap engaging portion Locking tongue pieces, P7: guard disengaged state, R7: guard attached state, M8: cap crowned state, L8: cap open state, X: insertion / removal direction, S: engagement / disengagement direction As a circumferential direction.

Claims (2)

In the engraving sword that attaches the blade body to the head of the holder and extends the blade body from the head,
The head of the holder is provided with a guard with wall portions arranged on both sides of the blade edge portion so as to sandwich the blade edge portion provided on the tip side of the blade body, and the direction connecting the wall portions and the extension of the blade body. The guard is provided with an open portion where the blade edge portion is exposed on at least one side of both sides in a direction orthogonal to the installation direction,
This guard takes a detached state separated from the holder, a state in which the guard is inserted into the holder, and an attached state supported by a locking portion that prevents the guard from being detached from the holder. It is an engagement / disengagement direction that can move between the disengagement state and the intermediate state along the insertion / removal direction for inserting / removing the holder with respect to the holder, and that crosses the insertion / removal direction to lock the guard with the holder. Take a guard movement trajectory that can move between this intermediate state and the attached state along the circumferential direction around the insertion / removal direction,
A cap that takes an open state separated from the guard and the holder and a crowned state that is supported by the guard or the holder and closes the open part of the guard;
The cap takes a basic attachment / detachment movement trajectory that can move along the insertion / removal direction of the guard with respect to the holder between the open state and the crowned state, and the guard is attached to the cap together with the cap in the crowned state. And the disengagement state so that the engagement portion integrally moves from at least one state to the other state, and the guard is inserted into and removed from the holder and intersects the insertion / removal direction. A carving sword characterized by taking a guard attaching / detaching operation trajectory that can move in a circumferential direction around an insertion / removal direction that is an engaging / disengaging direction to be locked . To a constant relative position of the cap with respect to the head guard and the holder upon the cap to the target crown state claims, characterized in that a regulating portion for limiting the basic detachable operating locus of the cap The engraving sword described in 1 .

Images