JP5857171B2 - Folding blade case - Google Patents

Description

  The present invention relates to a folding blade case of a cutter blade. More specifically, the blade edge portion can be updated by folding the cutter blade every predetermined length, and can be accommodated without touching the folded blade edge portion. The present invention relates to a folding blade case.

  A known cutter knife includes an elongated case extending in the front-rear direction, a slider provided in the case so as to be movable in the front-rear direction, and a cutter blade provided at the rear end side of the slider so as to protrude from the front end of the case. It is configured with. The cutter blade of this cutter knife can be renewed by bending along a cutting groove formed at predetermined intervals and cutting it, and a folding tool for performing the bending is known. ing. (For example, refer to Patent Document 1).

JP 2010-46113 A

  The folding blade case described in Patent Document 1 is provided with a cutter blade insertion port on one end side of the case. With the cutter blade inserted into the insertion port, a force is applied in the direction of bending the cutter blade. Then, the cutter blade is configured to be able to cut along the cutting groove.

However, as is well known, the cutting groove provided in the cutter blade is formed only on one surface of the cutter blade, and is not formed on the opposite surface. Therefore, the cutter blade can correctly cut the cutter blade linearly along the groove by bending the surface on which the groove for cutting is formed (groove forming surface) in a mountain folding direction. If the formation surface is folded in the direction of valley folding, the straight cutting along the groove cannot be performed, the cutter blade is irregularly broken, and the metal scrap is scattered. There is.
In Patent Document 1, as described above, if the direction of bending the cutter blade is correctly performed, cutting along the cutting groove is possible, while metal pieces are scattered when the bending direction is opposite. There is a problem that a crack is generated, and there is no means for the user to cut correctly.

[Object of the invention]
The present invention has been devised by paying attention to such inconvenience, and its purpose is to regulate the folding direction in one direction when folding the cutter blade along the cutting groove, An object of the present invention is to provide a folding blade case capable of performing a linear cutting along a groove.
Another object of the present invention is to provide a folding blade case which can prevent the cutter blade from being bent in the wrong direction and prevent metal pieces from being scattered due to cutting.

In order to achieve the above object, the present invention adopts the structure described in the claims. Specifically, a case having a base portion and a cover portion having a cover main body surface facing the base portion, in which a housing space is formed, and an inclined block provided on the inner surface side of the cover main body surface And a slit that penetrates the inclined block to communicate the housing space and the outside, and can be cut by inserting a cutter blade from the tip side and applying a force in a direction of bending the cutter blade. A folding blade case,
A piece-like projecting member that is provided along the slit and that constitutes a regulating means that regulates the bending direction of the cutter blade in one direction is integrally connected to the inclined block, and a hole is formed in the surface of the projecting member. Formed ,
The slit is formed in the inclined surface of the inclined block,
When the tip side of the cutter blade is inserted straight into the slit, the inclination of the slit in the inclined surface is parallel to the inclination of the cutting groove formed on one surface of the cutter blade,
The projection is you relative position on the side where the groove for the cutting is formed, it adopts a configuration that.

Furthermore, it can be set as the structure by which the circular hole is provided in the center part of the said slit .

  According to the present invention, since the restricting means is provided in the vicinity of the slit into which the cutter blade is inserted, the restricting means restricts the bending direction of the cutter blade in one direction. Therefore, when the cutter blade is folded along the cutting groove, the cutter blade can be cut in a straight line along the groove by aligning the groove with the slit and bending the cutter blade. Moreover, by realizing such cutting, it is possible to avoid scattering of metal pieces due to irregular cracks.

  Moreover, the said slit is set as the structure located in the inclined surface so that it might become a parallel position with the groove | channel for a cutting | disconnection, and relative alignment with the groove | channel for a cutting | disconnection and a slit can be performed without difficulty. Moreover, since the user can easily recognize that the insertion direction is wrong when the groove and the slit do not match, it is possible to perform accurate cutting also from this point.

  Furthermore, when the cutter blade is inserted into the slit, the restriction means is positioned at a position opposite to the cutting groove, so that bending in the wrong direction can be physically prevented, for example, for cutting. Even a user who does not recognize that the surface on which the groove is formed is folded in the direction in which the groove is folded can be prevented from being bent in the wrong direction.

  Further, if the position restricting means is constituted by a protruding member integrated with the case, for example, when the case is made of a resin molded product, it can be easily formed.

The schematic perspective view of the cutter blade holder which integrally provided the folding blade case. (A) is the AA arrow directional cross-sectional view of FIG. 1, (B) is the BB arrow directional cross-sectional view. (A) is a front view of a base part, (B) is the back view. (A) is the DD sectional view taken on the line of FIG. 3 (A), (B) is the CC sectional view taken on the line. (A) is a right side view of FIG. 3 (A), (B) is a cross-sectional view taken along line EE. (A) is a front view of a slider, (B) is the back view. (A) is a right side view of FIG. 6 (A), and (B) is a cross-sectional view taken along line F-F. (A) is a front view of a cover part, (B) is the back view. (A) is the GG arrow directional cross-sectional view of FIG. 8 (A), (B) is the right side view. (A) is a top view of a cover part, (B) is II sectional view taken on the line of FIG. 8 (B). 9A is a cross-sectional view taken along line JJ in FIG. 9B, and FIG. 9B is a cross-sectional view taken along line HH in FIG. (A)-(C) are operation | movement explanatory drawings which extract a cutter blade. (A) Operation | movement explanatory drawing just before cut | disconnecting a cutter blade, (B) is an operation | movement explanatory drawing immediately after cut | disconnecting a cutter blade.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the following description, “upper and lower” are used with reference to FIG. 1 unless otherwise specified. 2 and 12, the right side is “upper” and the left side is “lower”.

1 and 2, a cutter blade holder 10 integrally provided with a folding blade case 11 is a flat portion including a base portion 12 and a cover portion 13 combined with the base portion 12 at a position facing the base portion 12. Is disposed in the case 15 in a state in which an accommodation space (space) S1 of the replacement cutter blade 16 is formed between the case 15 and the cover portion 13, and can be taken in and out from the opening 18 of the case 15. A direction in which the provided blade 20 and the folding space S1 separated from the housing space S1 in the case 15 are communicated with the outside, and the cutter blade 16 is inserted from the tip side to bend the cutter blade 16 A slit 22 that can be cut by applying a force to the slit, and a bending direction of the cutter blade 16 provided in the vicinity of the slit 22 Is constituted by a regulating means 24 for regulating the direction.

As shown in FIGS. 3 to 5, the base portion 12 has a flat base surface portion 26 provided in a shape approximate to a rectangle, and an outer periphery of the base surface portion 26 excluding the upper end side in FIG. 3A. The left and right side wall portions 27 and the bottom wall portion 28 are provided at the central portion of the base surface portion 26 in the short width direction, and when the cover portion 13 is combined, the housing space S1 and the folding blade housing space are combined. A partition portion 29 for separating S2 is provided. At the position where the base surface portion 26 and the side wall portion 27 are continuously provided, the base surface portion 26 is formed with a plurality of square holes 31 for fitting and combining the cover portion 13. Further, the base surface portion 26 on the accommodation space S1 side is provided with a stepped portion 33 as a stopper mechanism by forming a step with the inner surface of the base surface portion 26 by forming a vertically long concave portion 32 in the central portion on the inner surface side. ing. An operation hole 35 for releasing the stopper mechanism is formed on the upper side of the concave portion 32.
In addition, while the upper end side of the base surface part 26 by the side of accommodation space S1 is made into the circular-arc-shaped edge 38, the upper end side of the base surface part 26 by the side of folding blade accommodation space S2 is the side wall part of the right side in FIG. 27 is an inclined edge 39 whose height is gradually reduced toward 27.

  As shown in FIGS. 8 to 11, the cover portion 13 is combined with the base portion 12 relative to the base portion 12, and is a flat cover body surface 42 provided in a shape approximate to a rectangle. The left and right cover side walls 43 provided on the inner surface side of the cover main body surface 42 (the middle front side in FIG. 8B), the cover bottom wall 45 connecting the bottom portions of the cover side walls 43, and A raised rib 46 that faces the partition 29 to form the receiving spaces S1 and S2 and a cutter blade folding tool 50 provided at the upper end of the receiving space S2 are provided.

  The cover side wall 43 and the cover bottom wall 45 are provided on the inner side of the outer periphery of the cover body surface 42 by an amount corresponding to the thickness of the side wall portion 27 and the bottom wall portion 28 of the base portion 12. The cover side wall 43 is provided with claw portions 52 that fit into the square holes 31 provided in the base portion 12.

  In the cover main body surface 42 that forms the housing space S1 side, a convex portion 54 that is inserted into a hole 16A (see FIG. 2) formed near one end of the cutter blade 16 is formed at the upper portion on the inner surface side. In addition, a concave portion 55 that engages with the slider 20 is formed on the upper side of the convex portion 54. Further, a rib-like cutter receiver 57 having an edge corresponding to the tip inclination angle of the cutter blade 16 is formed on the bottom side, and the upper end side is formed as a concave portion 58. The convex portion 54 is set to a height that allows passage of one cutter blade 16 that is received in the concave portion 83 (to be described later) of the slider 20 and extracted together with the slider 20.

  The folding tool 50 is provided on an upper portion of the cover main body surface 42 on the folding blade accommodation space S2 side. The folding tool 50 is provided on the inner surface side of the cover main body surface 42 and is inclined in a direction in which the left side in FIG. 8B is lowered, a slit 62 penetrating the inclined block 60 up and down, At a position in the vicinity of the slit 62, a projecting member 64 as a restricting means for restricting the bending direction of the cutter blade 16 in one direction and a lid piece 66 for closing the upper portion of the slit 62 are formed.

  The slit 62 is formed in the plane of an inclined surface 67 located somewhat below the upper end of the outer periphery of the inclined block 60, and the central portion of the slit 62 is formed as a circular hole 70. The inclination angle of the inclined surface 67 is the inclination angle of the cutting grooves G (see FIG. 13) formed at predetermined intervals on one surface of the cutter blade 16 when the cutter blade 16 is inserted into the slit 62 with the vertical direction. Corresponding to

  Further, the projecting member 64 is formed in a piece shape that rises upward from the inclined block 60, and is relatively positioned on the side where the cutting groove G of the cutter blade 16 is formed when the cutter blade 16 is inserted into the slit 62. It is provided as follows. That is, as shown in FIG. 9B, when the lower side of the inclined surface 67 is viewed as the front side and the higher side is viewed as the depth side, the protruding member 64 is provided on the left side thereof. Yes. It is well known that the cutter blade 16 is provided with a shape whose tip is inclined, and a cutting groove G is formed in parallel with the inclination angle. When the cutter blade 16 is inserted into the slit 62 in accordance with the inclination of the slit 62, the cutter blade 16 is inserted so that the sharp end of the cutter blade 16 is positioned at the lower side of the slit 62. At this time, the cutting groove G Will be on the left. Therefore, in order to bend for cutting, the correct bending direction is to move the hand holding the cutter body to the right. Therefore, as shown in FIG. 9B, if the protruding member 64 is positioned on the left side with respect to the slit 62, the movement of lying down the cutter C (see FIG. 13) on the left side is prevented. Therefore, the user can always bend it so as to tilt to the right, which is the correct direction.

  The lid piece 66 has a base portion hinged to the upper portion of the inclined block 60 and is rotatably provided with a free end at the tip. On the free end side, when the lid piece 66 is in the closed position, a claw piece 74 that fits into a recess 73 formed on the side end of the inclined block 60 so as to maintain the closed position, and a lid from the closed position. A finger hook portion 76 is formed as an operation portion when operating the piece 66 to the open position.

  As shown in FIGS. 6 and 7, the slider 20 includes a long strip-shaped slider main body 80 located in the accommodation space S <b> 1 and a knob operating portion 81 provided on one end side in the longitudinal direction of the slider main body 80. Including. The slider body 80 includes a recess 83 having a depth capable of receiving one cutter blade 16, and a piece-like portion 85 constituting a stopper mechanism is provided on the bottom side in the surface of the recess 83. Yes. The piece-like portion 85 is provided in a cantilever posture in which one end is a free end by forming a downward U-shaped cutout portion 87 in the surface of the recess 83, whereby the free end 85A is more case than the base end 85B. 15 are located on the side of the opening 18. The piece 85 is formed such that when it is positioned in the case 15, the posture in which the free end 85 </ b> A is inclined toward the inner surface of the base 12 is set as the initial position. Therefore, the slider 20 can move to a position where the free end 85 </ b> A abuts on the stepped portion 33 located at the upper end of the concave portion 32 while the piece-like portion 85 is in contact with the concave portion 32 provided on the base portion 12.

  The slider body 80 includes a thin portion 88 near the knob operation portion 81 from the longitudinal center, and is provided so as to be foldable with the thin portion 88 as a center of rotation. In the extracted state, it can be bent in a direction away from the surface of the cutter blade 16 located in the recess 83, and the extracted cutter blade 16 can be extracted by sandwiching it with a fingertip, for example. The cutter blade holding part provided in the can hold a part of the extracted cutter blade 16.

  The knob operation unit 81 includes an inner upper wall 90 that is continuous with the upper end of the slider body 80, an operation piece portion 91 that is continuous with the front end of the inner upper wall 90, and an inner upper wall that is continuous with the upper end of the operation piece portion 91. An outer upper wall 92 located outside the wall 90, and a rib that is continuous with the outer upper wall 92 and that abuts against the arc-shaped edge 38 of the base portion 12 with the slider 20 inserted into the housing space S1. Arc-shaped portion 93 of the structure. A hook piece 95 that is stepped down with respect to the surface of the operation piece portion 91 is formed at the tip of the operation piece portion 91 (lower end in FIG. 7). The hook piece 95 is formed on the upper inner surface side of the cover portion 13. It is provided so that it can engage with the recessed part 55 made.

  Next, the usage method of the cutter blade holder 10 and the cutting procedure of the cutter blade 16 in this embodiment will be described with reference to FIGS.

  When the cutter blade 16 is extracted from the case 15, as shown in FIG. 2A, the entire cutter blade holder 10 is turned sideways so that the cover portion 13 is on the upper surface side. In this state, among the plurality of stacked cutter blades 16, one of the cutter blades 16 positioned at the lowest position has a hole 16 </ b> A provided on one end side thereof protruding from the convex portion 54, and the concave portion 83 of the slider 20. It will be in a state of being depressed.

  When the operation piece 91 of the knob operation portion 81 in the slider 20 is pressed, the hook piece 95 is bent and the engagement with the corresponding recess 55 is released. Then, as shown in FIG. 12, the slider 20 is extracted from the opening 18 by applying a rightward force to the knob operation unit 91. This extraction is performed up to a position where the free end 85 </ b> A of the piece-like portion 85 of the slider 20 abuts on the stepped portion 33 formed by the recessed portion 32.

  When the slider is extracted to the extraction limit in this way, the upper region (the right region in FIG. 12) of the recess 83 appears. In this state, by rotating the knob operating portion 81 downward in the drawing and bending it, the one end side of the cutter blade 16 is released from the support by the slider main body 80, and the cutter blade 16 can be touched without touching the edge of the cutter blade 16. One cutter blade 16 can be completely extracted from the blade holder 10.

  After completing the extraction of the cutter blade 16, the next cutter blade 16 is accommodated in the recess 83 of the slider 20 by inserting the slider 20 into the accommodating space S, and can be prepared for the next extraction. When the slider 20 is completely extracted, the slider 20 is extracted to the limit of movement in the extraction direction, a pin (not shown) is inserted from the operation hole 35, and the free end side of the piece-like portion 85 is pressed. What is necessary is just to get over the step part 33 in a state.

  As shown in FIG. 13, when the blade is renewed by folding the tip side of the cutter blade 16 held by the cutter C, the cutter C is in a vertical posture so that the cutter blade 16 is in the lower position, and the cutter The blade 16 is inserted into the slit 62 of the folding tool 50. At this time, since the slit 62 has the same inclination as the inclination direction of the groove G of the cutter blade 16, the groove G becomes a protruding member 64 by inserting the cutter blade 16 into the slit 62 so as to correspond to the inclination. Be sure to face to the side.

Therefore, as shown in FIG. 13A, even if the cutter C is tilted to the left, the projecting member 64 acts to prevent the tilt, so the user tilts to the right. And when it inclines more than a fixed angle, the cutter blade 16 is cut | disconnected correctly and beautifully along the groove | channel G, and the blade piece 16A produced by this falls in the folding blade accommodation space S2, and is integrated | stacked ( (See FIG. 2B).
When the cutter blade 16 is not cut, it is sufficient to place the lid piece 66 in the closed position.

Therefore, according to such an embodiment, the cutter blade 16 can be extracted while being supported by the slider 20 simply by extracting the slider from the case 15. Further, since the stopper mechanism is provided by the piece-like portion 85 using the surface of the slider 20 and the step portion 33 provided on the inner surface side of the base portion 12, the thickness of the slider 20 can be reduced, and the cutter blade holder 10 as a whole. Can be made thinner.
Moreover, when the single cutter blade 16 is extracted, the slider body 80 maintains the state in which the cutter blade 16 is supported, so that the blade edge can be extracted without touching the fingers and the safety is high. Become.

  Further, since the folding blade case 11 is provided with the protruding member 64 on the side in the vicinity of the slit 62, the bending direction of the cutter blade 16 can be regulated in one direction by the protruding member 64, and the cutting groove G is formed in the cutting groove G. It is possible to perform cutting while always keeping the direction when the cutter blade 16 is folded along the correct direction, and it is possible to prevent scattering of fine metal pieces that may occur when the cutter blade 16 is bent in the wrong direction.

The best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this.
That is, the invention has been illustrated and described with particular reference to particular embodiments, but it should be understood that the above-described embodiments are not deviated from the technical idea and scope of the invention. On the other hand, those skilled in the art can make various modifications in shape, material, quantity, and other detailed configurations.
Therefore, the description limited to the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such is included in this invention.

  For example, although the case where the folding blade case 11 in the above embodiment is provided integrally with the cutter blade holder 10 is illustrated and described, the present invention is not limited to this, and only the folding blade case 11 is independently provided. It may be formed.

DESCRIPTION OF SYMBOLS 10 Cutter blade holder 11 Folding blade case 12 Base part 13 Cover part 15 Case 15 Cutter blade 18 Opening part 20 Slider 33 Step part (stopper mechanism)
35 Operation hole 62 Slit 64 Projection member (regulating means)
83 Concave part 85 Single piece part (stopper mechanism)
85A Free end 85B Base end G Groove S1 Storage space S2 Folding blade storage space

Claims (2)

A case having a base portion and a cover portion having a cover body surface facing the base portion, in which a housing space is formed, an inclined block provided on the inner surface side of the cover body surface, and the inclined block And a slit which can be cut by inserting a cutter blade from the tip side and applying a force in a direction to bend the cutter blade. And
A piece-like projecting member that is provided along the slit and that constitutes a regulating means that regulates the bending direction of the cutter blade in one direction is integrally connected to the inclined block, and a hole is formed in the surface of the projecting member. Formed ,
The slit is formed in the inclined surface of the inclined block,
When the tip side of the cutter blade is inserted straight into the slit, the inclination of the slit in the inclined surface is parallel to the inclination of the cutting groove formed on one surface of the cutter blade,
The folding blade case according to claim 1, wherein the protrusion is positioned relative to a side where the cutting groove is formed .   The folding blade case according to claim 1, wherein a circular hole is provided in a central portion of the slit.

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