KR20170134198A - Replaceable blade for cutter and cutter with the same replaceable blade - Google Patents

Abstract

Provided are a replaceable blade (20) for a cutter to reduce contact with the replaceable blade when replacing the replaceable blade and a cutter (10) having the replaceable blade (20). The replaceable blade (20) for a cutter comprises: a tray (60) having a protrusion coupling unit that is a sliding movement protrusion (631); and a blade body (70) having a non-protrusion coupling unit that is a maintenance support hole (73) stored in the tray (60) to move back and forth to be coupled to the protrusion coupling unit. The protrusion coupling unit is detachably caught in and coupled to the non-protrusion coupling unit. Moreover, the cutter (10) is provided with a body case (30) detachably storing the replaceable blade (20) for a cutter, and enables the blade body (70) to appear.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutter for a cutter,

The present invention relates to a cutter replacement blade and a cutter.

BACKGROUND ART Conventionally, a cutter capable of exchanging a replacement blade has been proposed. For example, a cutter knife disclosed in Japanese Patent Application Laid-Open No. 2008-229077 has a slider which is movably provided in a case while holding a cutter blade. This slider is constituted by a slider main body and a pressing member provided so as to sandwich the cutter blade between the slider main body and the slider main body. Further, the slider can remove the cutter blade by performing a predetermined operation. The cutter knife disclosed in Japanese Patent Application Laid-Open Publication No. 2008-229077 is configured to require a predetermined operation of the slider when removing the cutter blade, so that even when the slider and the cutter blade are pulled out from the case, And it is said that the problem of dropping out does not occur.

For example, a cutter knife disclosed in Japanese Patent Application Laid-Open No. 2010-264004 includes a cutter main body, a cutter member having a cutter blade, and a pressing member for pressing the cutting edge with a constant pressure against the cut object. A leaf spring or the like arranged on the opposite side of the cutting edge is used as the pressing member. The thus configured cutter knife can make the pressing force constant and stabilize the operability during cutting operation.

However, in the above-described cutter knife, the blade can be replaced with a slider covering a part of the blade. Since most of the blade is exposed while being accommodated in the cutter body, In some cases.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide a replacement blade for a cutter which is reduced in contact with a blade of a replacement blade during replacement of the replacement blade, and a cutter provided with the replacement blade.

A cutter replacement blade according to the present invention includes a tray having a catching portion and a blade having a catching portion that is received in the tray so as to be movable forward and backward and is engaged with the catching portion, And is detachably engaged with the engaging portion.

The cutter of the present invention is characterized in that the blade has a case detachably accommodating the cutter replacement blade so that the blade can protrude and retract.

According to the present invention, it is possible to provide a replacement blade for a cutter in which contact with the blade of a replacement blade is reduced at the time of replacing the replacement blade, and a cutter provided with the replacement blade.

Fig. 1 is a perspective view of a cutter according to an embodiment of the present invention, viewed from the left front and above. Fig. 1 (a) shows a stored state, and Fig. 1 (b) shows a used state.
Fig. 2 is an exploded perspective view of the cutter according to the embodiment of the present invention, viewed from the left front upper side. Fig.
Fig. 3 is an exploded perspective view of the cutter according to the embodiment of the present invention, viewed from the right rear and the lower side.
Fig. 4 is a sectional view taken along line IV-IV of Fig. 1 according to the embodiment of the present invention, wherein Fig. 4 (a) shows the unlocked state and Fig. 4 (b) shows the locked state.
Fig. 5 is a VV cross-sectional view of the cutter of Fig. 1 according to the embodiment of the present invention, wherein (a) shows the stored state and (b) shows the used state.
6 is a cross-sectional view of the cutter VI-VI of Fig. 5 according to the embodiment of the present invention, wherein (a) shows the stored state and (b) shows the used state.
Fig. 7 is a cross-sectional view taken along line VII-VII of Fig. 5 showing the periphery of the cutter operating portion of Fig. 5 according to the embodiment of the present invention.
Fig. 8 is a cross-sectional view of the cutter according to the embodiment of the present invention while shifting from the housed state shown in Fig. 6 (a) to the used state shown in Fig. 6 (b).

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a perspective view of the cutter 10 seen from the upper left front. Fig. 1 (a) shows a stored state, and Fig. 1 (b) shows a used state. In the cutter 10, a cutter replacement blade 20 (see Figs. 2 and 3) provided with a blade 70 is housed in the body case 30. Fig. The user can operate the front and rear operation members 80 to cause the blade 70 to protrude and retract from the blade protruding and retracting holes 31 provided in the front end portion of the main body case 30. [ In the following description, the front face of the cutter 10 on the side of the blade protruding / retracting hole 31 is set to the front side, and the opposite side is set to the rear side. In Fig. 1, the upper side is the upper side and the lower side is the lower side, and the left side when viewed from the rear side is the left side and the right side is the right side.

Fig. 2 is an exploded perspective view of the cutter 10 viewed from the left front upper side. 3 is an exploded perspective view of the cutter 10 seen from the right rear lower side.

The cutter 10 includes a main body case 30 for housing the replacement blade 20 and the slider 50 and an end cap 40. [ The replacement blade 20 includes a tray 60 and a blade 70. On the upper portion of the slider 50, an operation member 80 is provided. The cutter 10 also has a lock member 90 for regulating the attachment / detachment of the end cap 40 and the movement of the slider 50. Hereinafter, the respective members will be described.

The main body case 30 is formed in a substantially rectangular column shape having a long axis in the front-rear direction, and the tip end of the front end face 30c is formed so as to be distracted. The left and right widths of the left side surface 30a and the right side surface 30b (see FIG. 3) of the main body case 30 are formed to be slightly wider toward the rear. On the upper surface of the front end side of the main body case 30, an operation concave portion 301 having a longitudinal axis and recessed in an elliptical shape is formed. A gripping surface 302 is formed on the lower surface of the main body case 30 along the outer surface of the main body case 30, The front surface 30c of the main body case 30 is formed with a slit-like hole 33 having a width and a length that allows the blade 70 to be inserted therethrough. As shown in the enlarged view A viewed from the rear of the rear opening 34 of the main body case 30, two arcuate protrusions 311 are provided at the upper and lower positions on the right inner wall of the through hole 31 .

On the upper surface of the main body case 30, a concave long rectangular groove 303 is formed forward from the rear end of the main body case 30. At the bottom of the long rectangular groove 303, a slit 32 cut out forward from the rear end of the main body case 30 is formed. Through the slit 32, the inside 33 of the main body case 30, into which the replacement blade 20 is housed, passes. At the right edge of the slit 32, a plurality of notches 321 are formed on the front and rear sides. Each cutout 321 is cut out to the left and right, and is formed in a substantially V shape when viewed from above.

A rear opening portion 34 for accommodating the replacement blade 20 and the slider 50 from the rear is formed at the rear end portion of the main body case 30. The rear opening portion 34 is cut out in an L shape at the rear upper side when viewed from the side. The rear opening portion 34 is formed with a bottom surface 30f of the main body case 30 and a U-shaped opening receiving portion 35 extending rearward from the left side surface 30a and the right side surface 30b. Two guide grooves 351a recessed in a concave shape extending back and forth are formed on the outside of the left side surface 35a of the opening receiving portion 35 shown in Fig. The two guide grooves 351a are vertically juxtaposed. On the front side of each guide groove 351a, a latching recess 352 recessed deeper than the guide groove 351a is formed.

Two guide grooves 35lb and 351c recessed in a concave shape extending back and forth are formed on the outside of the right side surface 35b of the opening accommodating portion 35 shown in Fig. The upper guide groove 35lb and the lower guide groove 351c are juxtaposed vertically. On the front side of each of the guide grooves 351b and 351c, a locking recess 352 recessed deeper than the guide grooves 351b and 351c is formed. In the rear side of the lower guide groove 351c, a rectangular-shaped latching hole 353 penetrating the right side surface 35b of the opening accommodating portion 35 is formed. A rectangular cutout 354 is formed in the rear end of the guide groove 351c in the opening accommodating portion 35. [

In the enlarged view A of Fig. 2, a substantially rectangular space having a front bottom portion 333 is formed in the inside 33 of the main body case 30. [ An intermediate plate 334 is disposed upright from the right inner wall 33b of the inner portion 33 toward the left. The intermediate plate 334 is extended from the front bottom portion 333 where the blade protrusions 31 are formed to the vicinity of the rear opening portion 34.

The lower inner wall of the inner portion 33 is formed with a concave bottom groove portion 36f which is shallowly recessed from the front bottom portion 333 to the vicinity of the rear opening portion 34. [ A recessed frame portion 36e which is opened in the leftward direction is formed between the intermediate plate 334 and the lower groove portion 36f and on the right inner surface of the recessed frame portion 36e, This narrow concave groove portion 36e1 is formed. The concave frame portion 36e is formed so as to have a width larger than that of the blind hole 33 and extends in the front and rear direction from the front bottom portion 333 to the vicinity of the rear opening portion 34. [ The tray housing portion 36 is formed by the concave frame portion 36e and the concave groove portion 36e1. A slider left accommodating portion 37 is formed between the left inner wall 33a of the inner portion 33 and the left end surface 334a of the intermediate plate 334. An upper slider accommodating portion 38 is formed between the upper inner wall 33e on which the slit 32 of the inner portion 33 is formed and the upper surface of the intermediate plate 334. A concave frame portion 355 and a guide projection 356 are formed in the front and rear direction on the bottom portion 35f of the opening accommodating portion 35 behind the intermediate plate 334. [ The guide protrusion 356 extends from the inclined surface connected to the bottom portion 35f to the rear end of the opening accommodating portion 35. The guide protrusion 356 is provided substantially at the center in the left- Respectively. The concave frame portion 355 is provided on the right side of the guide projection 356.

The end cap 40 is detachably attached to the opening accommodating portion 35 from the rear end of the main body case 30 accommodating the replacement blade 20 and the slider 50 to function as a lid. The end cap 40 is formed to have a smaller width than the main body case 30 (see Fig. 6). The end cap 40 has a front opening 41 on the front side. On the rear side of the end cap 40, an elliptical through hole 42 penetrating right and left is formed. The rear end face 40d of the end cap 40 is formed with an elliptical shape along the inner circumferential shape of the through hole 42 such that the thickness formed between the rear end face 40d and the through hole 42 is substantially the same, And is formed into an arc shape (see Fig. 5). Two through holes 422 passing through the rear end face 40d side are vertically arranged in the inner wall portion 421 of the through hole 42. [

The right guide surface 41b and the left guide surface 41a on the inner wall of the front opening 41 are formed with guide rails 43a and 43b having convex shapes extending in the front and rear directions, respectively. Two guide rails 43a are arranged vertically and two guide rails 43b are arranged vertically. In the right guide surface 4lb, on the front side of the guide rail 43b, there is formed a convex circular arc shape engaging with the engaging concave portion 352 of the right guide groove 351b, 351c of the opening accommodating portion 35 A locking projection 431 is formed. Likewise, in the left guide surface 41a, a convex circular engaging engagement is formed on the front side of the guide rail 43a so as to engage with the engaging concave portion 352 of the left guide groove 351a of the opening accommodating portion 35, A projection (not shown) is formed. The end cap 40 is guided by the guide grooves 351b and 351c of the right guide rail 43b and guided by the guide grooves 351a of the left guide rail 43a, Respectively.

When the end cap 40 is completely mounted on the main body case 30, the engaging projection 431 engages with the engaging recess 352. [ As a result, the end cap 40 is prevented from being unintentionally dislodged while the click feeling of mounting the end cap 40 is obtained.

On the upper surface of the end cap 40, a spot facing portion 44 recessed into a rectangular shape to which the lock member 90 is attached is formed. The spot facing portion 44 has a mounting hole 441 at the corner of the four corners at its bottom portion and a lock pin insertion hole 442 having a slightly larger opening area than the mounting hole 441 . The mounting hole 441 and the lock pin insertion through hole 442 are formed as a substantially rectangular long hole extending in the left-right direction of the end cap 40. In the center of the bottom of the spot facing portion 44 in the left and right direction, engaging projections 443 are formed on the front side and the rear side with the lock pin insertion through hole 442 interposed therebetween.

Next, the replacement blade 20 will be described. The replacement blade 20 includes a tray 60 and a blade 70. The blade 70 included in the replacement blade 20 is held by the tray 60 from the right side of the blade 70 and connected to the slider 50 from the left side of the blade 70.

The tray 60 has a substantially rectangular bottom plate 61 having long sides before and after. An upper wall 61e and a lower wall 61f are provided standing in the left direction from the rear end side to the front end side of the bottom plate 61 from the upper edge and the lower edge of the bottom plate 61, respectively. The height of the upper side wall 61e and the lower side wall 61f in the transverse direction is formed to be higher than the thickness of the blade 70. Two upper pressing walls 61e1 and 61e2 bent downward are formed from the tip of the upper side wall 61e. Two lower pressing walls 61f1 and 61f2 are formed upward from the front end of the lower wall 61f. The respective pressing walls 61e1, 61e2, 61f1 and 61f2 are arranged in the order of the upper pressing wall 61e1, the lower pressing wall 61f1, the upper pressing wall 61e2 and the lower pressing wall 61f2 from the front to the rear in this order . As described above, the bottom plate 61, the upper side wall 61e and the lower side wall 61f form a long groove portion in the front and back. One side of the blade 70 mounted on the groove portion is sandwiched between the upper pressing walls 61e1 and 61e2 and the lower pressing walls 61f1 and 61f2 and the other side is sandwiched by the bottom plate 61, Movement is regulated. Accordingly, the blade 70 is loosely fitted in the vertical and horizontal directions, and is guided freely in the back and forth movement, and is prevented from dropping off from the tray 60.

Further, a guide plate 611 in the form of a long plate is further extended to the left end of the upper wall 61e. The guide plate 611 is extended from the slightly rear side to the front end in the front-rear direction. The guide plate 611 has an upper wall 61e and a lower wall 61e so that the lower surface of the guide plate 611 is substantially equal in height to the lower surface of the upper wall 61e and the upper surface of the guide plate 611 is downwardly formed Respectively.

The bottom plate 61 has a long rectangular recessed portion 62 which is recessed into the side opposite to the stacking side of the blade body 70 (right side of the tray 60). The long rectangular recessed portion 62 is formed linearly from the vicinity of the center in the front-rear direction to the front end portion, and is provided substantially at the center in the vertical direction of the bottom plate 61. A circular through hole 621 is formed in the rear of the long rectangular concave portion 62. The bottom plate 61 has an upper window hole 64e and a lower window hole 64f which are through holes at an upper position and a lower position of the elongated rectangular concave portion 62 (see Fig. 3). The upper window hole 64e is located on the right side of the upper pressing walls 61e1 and 61e2. The lower window hole 64f is located on the right side of the lower pressing walls 61f1 and 61f2. The upper window hole 64e and the lower window hole 64f are formed as elongated holes having a substantially rectangular shape extending back and forth.

The bottom plate (61) has a long hole (612) extending back and forth on the rear end side. A sliding plate 63 in the form of a cantilever spring is formed inside the long hole 612. The rear end side of the sliding plate 63 is a fixed end 63d connected to the bottom plate 61 and the front end 63c of the sliding plate 63 is a free end. The sliding plate 63 has a sliding protrusion (engaging portion) 631 erected on the left side of the tip end 63c. The sliding projection 631 is formed into a columnar shape having a base of a long and narrow base. The front end portion and the rear end portion of the sliding projection 631 are formed in a C-chamfered shape. The sliding plate 63 also has an operation protrusion 632 protruding to the left between the fixed end 63d and the tip end 63c. As shown in the cross-sectional view of Fig. 6 (a), the operation protrusion 632 is formed in a substantially pentagonal shape with its base side facing the sliding plate 63 side from above.

A forward protrusion 633c and a rear protrusion 633d having a substantially trapezoidal shape when viewed from the side are formed above the side of the fixed end 63d of the sliding plate 63 (see Fig. 5 (b)). The front side surface of the front projection 633c and the rear side surface of the rear projection 633d are formed in the vertical direction. Further, the rear side surface of the front projection 633c is inclined so as to descend to the rear, and the front side surface of the rear projection 633d is inclined to the rear side.

The bottom plate 61 has an upper latching portion 651 and a lower latching portion 652 behind the rear and lower pressing walls 61f1 of the upper pressing wall 61e1. The upper latching portion 651 is formed in a substantially trapezoidal shape when viewed from the side where the upper-side lower portion is connected to the upper-side wall 61e and extends downward (see Fig. 5A). The lower latching part 652 is formed in a substantially trapezoidal shape when viewed from the side where the lower side bottom is connected to the lower side wall 61f and stands upright. The front end face of the upper latching portion 651 and the front end face of the lower latching portion 652 are provided on substantially the same plane so that when the blade body 70 is housed in the tray 60, And contacts the rear end inclined surface 70d to restrict the blade 70 from moving backward.

On the rear side of the upper side wall 61e, a locking portion 66 bent downward into a concave arc shape is formed. The engaging portion 66 is formed in the shape of a fixed support spring plate which can be elastically deformed up and down with the front end portion and the rear end portion as fixed ends. An upper latching protrusion 661 is vertically provided at a substantially central portion of the lower surface of the engaging portion 66 in the longitudinal direction. 3, the upper latching protrusion 661 is wider than the latching portion 66 and extends to the right side of the latching portion 66. As shown in Fig. Plate-like flange portions 661c and 661d are formed on the front and rear sides of the base end side of the upper latching protrusion 661. [ The flange portions 661c and 661d are provided on the right side of the upper latching protrusion 661. 2, a support protrusion 662 is erected upward at a position facing the upper latching protrusion 661 of the lower wall 61f. The tips of the upper latching protrusions 661 and the support protrusions 662 are formed in a semispherical shape when viewed from the side.

3, a notch 663 is formed in the bottom plate 61 between the engaging portion 66 and the sliding plate 63 on the rear end side of the elongated hole 612. On the right side surface of the bottom plate 61, a projecting surface 613 is formed. The protruding surface 613 is formed at approximately the center of the upper and lower portions and extends from the front end portion of the tray 60 to the substantially rear end portion. Protrusions 664c and 664d are formed toward the upper latching protrusion 661 from a part of the protruding surface 613 at the front end and the rear end of the cutout 663. [ A rib portion 635 is formed on the right side surface of the sliding plate 63. The rib portion 635 extends from the fixed end portion 63d of the sliding plate 63 to substantially the center in the longitudinal direction of the sliding plate 63. [ A part of the fixed end portion 63d of the rib portion 635 is formed so as to be narrow in the vertical width adjacent to the rim of the notch portion 634. [

2, the slidable plate 63 is formed with a notch 634 that is cut out in a substantially rectangular shape at the lower end of the fixed end 63d. On the left side of the notch 634, there is provided a substantially quadrangular latching protrusion 671 extending from the bottom plate 61. At the front end of the engaging projection 671, a return projection 671e which is erected upward is formed. A rear pressing plate 672 extending from the bottom plate 61 is formed on the left side of the slider 50 below the engaging projections 671. The engagement of the groove 533 of the slider 50 with the engaging projection 671 restricts the movement of the slider 50 in the leftward direction. The rearward movement of the slider 50 with respect to the tray 60 is restricted by the engaging projection 671 and the rear pressing plate 672. [ A contact projection 673 is formed on the front side of the rear pressing plate 672 at the lower end of the lower wall 61f to contact the upper surface of the guide projection 356 of the opening accommodating portion 35. [ The contact protrusions 673 are formed in a substantially semicircular shape when viewed from the side.

The tray (60) has a tray catching portion (68) at the rear of the bottom plate (61). The tray catching portion 68 is formed in a plate shape having a narrower upper and lower width than the bottom plate 61. On the left side surface of the tray latching portion 68, a groove portion 681 recessed into a V shape when viewed in plan view is formed. On the inner surface of the rear inner side of the groove 681, a columnar projection 682 of a square column shape is provided standing up toward the left side. In Fig. 3, a latching protrusion 683 is formed on the rear right side surface of the tray latching portion 68. As shown in Fig. When the tray 60 is received in the inside 33 of the main body case 30, the latching protrusion 683 is hooked on the retaining hole 353 of the main body case 30 to fix the position of the tray 60 do. An operation plate 684 for releasing the engagement of the latching protrusion 683 with the latching hole 353 by elastically deforming the tray latching portion 68 in the left direction is provided at the rear end of the tray latching portion 68 Respectively.

The blade 70 is formed in a plate shape of a parallelogram shape. The blade 70 has a blade tip 71 on one side of the long side. The blade tip 71 is formed as a double-sided blade having blades formed on both sides of the blade body 70. The blade 70 is housed in the tray 60 such that the blade tip 71 is downward and the acute angle of the blade body 70 including the blade tip 71 is forward. The blade 70 has a delivery hole 72 and a holding hole (engaged portion) 73 on the rear end side. The delivery hole 72 is a round hole formed substantially in the center of the blade body 70 in the vertical direction. The holding hole 73 is formed in the shape of an elongated hole at the rearward position of the delivery hole 72 at the substantially central portion of the blade body 70 in the up-and-down direction. The long hole of the holding hole 73 is formed so as to be in the front-rear direction of the blade 70. The blade 70 is sandwiched between the upper wall 61e and the lower wall 61f so that the left and right direction is perpendicular to the bottom plate 61 and the upper pressing walls 61e1 and 61e2 and the lower pressing walls 61f1 and 61f2, And is housed so as to be movable back and forth. Further, a sliding projection 631 is inserted into the holding hole 73. [ The blade 70 is restricted from moving in the back and forth direction while the sliding projection 631 is inserted into the holding hole 73. [

The slider 50 is used to manipulate the fore and aft movement of the blade 70 in combination with the tray 60, the blade 70 and the operating member 80. The slider 50 has a slide plate 51 and an operating portion 52.

The slide plate 51 is connected to the blade body 70 while sandwiching the blade body 70 between the tray 60 and the blade body. On the rear side of the slide plate 51, a fixing plate 53 is extended. The vertical width of the fixing plate 53 is narrower than the vertical width of the slide plate 51. At the rear end of the fixing plate 53, a lock hole 531 for fixing the slider 50 is formed. The fixing plate 53 has a cutout portion 532 having a substantially rectangular shape with a width larger than that of the columnar protrusion 682 below the lock hole 531. On the left side of the slide plate 51, four guide rails 54, which are arranged in the upper and lower two stages and divided in the front and rear directions, are formed. The guide rail 54 is a linear protrusion protruding from the slide plate 51 and is formed in the forward and backward directions of the slider 50. 3, a substantially L-shaped groove 533 is formed at the lower end of the fixing plate 53 as seen from the rear surface spaced back and forth by the cutout portion 532. As shown in Fig. The groove 533 is provided so that its inner wall faces downward and leftward, and engages with the return projection 671e of the tray 60. [

On the right side of the slide plate 51, guide grooves 55 arranged in the front-rear direction are formed. The guide groove 55 engages with the guide plate 611. The guide grooves 55 are formed between the two rails in the form of a long plate. The guide groove 55 is provided from the front end of the slider 50 to the fixing plate 53 on which the lock hole 531 is provided. A pressing portion 561 is formed substantially at the center of the right side surface of the slide plate 51. The pressing portion 561 is formed in a substantially rectangular parallelepiped shape having a long axis before and after. The pressing portion 561 has a forward inclined portion 561c and a backward inclined portion 561d. In the center of the right side surface of the pressing portion 561, a long concave depression is formed in the front and back. A plate portion 561e extends rearward at an upper end portion of the rearward inclined portion 561d, which is the rear end of the pressing portion 561. [ A lower latching projection 562 is formed on the upper surface of the pressing portion 561 including the plate portion 561e. The lower latching protrusion 562 is formed in a substantially semicircular arc shape when viewed from the right side.

A substantially cylindrical engagement protrusion 563 which engages with the delivery hole 72 of the blade 70 is provided on the front side of the pressing portion 561 of the slide plate 51 in the right direction. The engaging projection 563 has a groove portion 563a which is divided in the front and rear directions. On the rear side adjacent to the engaging projections 563, there is formed a rack 564 of a blade 70 which is erected in a substantially quadrangular prism shape. At the boundary between the stacking table 564 and the latching protrusion 563, a groove portion is formed at substantially the center in the vertical direction. A locking projection 563 is inserted into the delivery hole 72 of the blade 70. At this time, the left surface of the blade 70 comes into contact with the flat surface 564a of the table 564.

The right side surface of the slide plate 51 has a lower end portion 51e and an upper end portion 51f which is thicker in the right direction than the lower end portion 51e. The lower end portion 51e is provided above the slide plate 51 and the upper end portion 51f is provided below the slide plate 51. [ The pressing portion 561 and the loading table 564 are disposed at the positions of the upper end portion 51f and the lower end portion 51e. Further, the engaging projection 563 is disposed on the upper end portion 51f. The bottom of the groove portion 563a of the engaging projection 563 is formed on the same surface as the upper end portion 51f.

In Fig. 2, the operating portion 52 is provided on the upper portion of the slide plate 51. The operation section 52 has an operation body section 57 in a substantially rectangular plate shape and a fixed plate 58 in a substantially rectangular plate shape standing upright from the operation body section 57. The operation main body 57 is connected to the slide plate 51 so as to be substantially perpendicular to the slide plate 51. At the four corners of the upper surface of the operation body 57, contact projections 571 each having a square column shape are provided. The front end portion and the rear end portion on the upper surface side of the contact projection 571 are each formed into a C-like shape. Further, on the upper surface of the contact projection 571, a stepped portion protruding upward is formed substantially at the center in the front-rear direction. At the lower position of each contact projection 571, four arcuate engagement projections 572 are provided on the left side and the right side of the operation body 57 in total.

The fixing plate 58 is adjacent to the right side of the two left contact projections 571a. Above the front end portion and the rear end portion of the fixing plate 58, a return projection 581 protruding in the left direction is formed. The return projection 581 has a C-chamfered shape at its upper end. A front branch plate 582 is formed in the fixing plate 58 at a front portion thereof for bifurcation toward the right front side (see also Fig. 7). Further, the fixing plate 58 is provided with a rear branching plate 583 which is branched rearwardly in the rightward rear direction. The front end portion of the front branch plate 582 and the rear end portion of the rear branch plate 583 are formed to be substantially parallel to the fixing plate 58 when viewed from the top. 3, a return projection 581 projecting to the right is formed above the front end of the front branch plate 582 and the front end of the rear branch plate 583. The return projections 581 of the front branch plate 582 and the rear branch plate 583 are formed in a C chamfered shape on the upper end side.

On the right side surface of the fixing plate 58, two prismatic engaging projections 584c and 584d are formed. The engaging projections 584c and 584d are provided between the front branch plate 582 and the rear branch plate 583. The engaging projection 584c on the front side extends from the fixed plate 58 toward the right front side and the engaging projection 584d on the rear side extends from the fixed plate 58 toward the right rear side. The tips of the engaging projections 584c and 584d are provided so as to be located on the right side of the front branch plate 582 and the rear branch plate 583.

The operating member 80 is fixed to the operating portion 52 from above. As shown in the enlarged view C of Fig. 3, the operating member 80 is formed in a substantially rectangular shape that is long in the front and rear direction. The operating member 80 has a left side plate 81a and a right side plate 81b and is formed in a frame shape with its lower side opened. Two inner latching projections 81a1 are provided on the inner wall of the left side plate 81a at positions at front and rear intervals substantially equal to the return projections 581. [ Two inner latching projections 8lb1 are also provided on the inner wall of the right side plate 8lb at positions opposed to the right and left latching projections 81a1. The inner latching projections 81a1 are all formed in a substantially rectangular parallelepiped shape projecting inward of the operating member 80. [ Chamfered shapes are formed at the lower end portions of the respective inner engagement projections 81a1 and 81b1.

A front regulating member 821c and a rear regulating member 821d in the form of a cube are formed from the lower surface at the front end and the rear end of the ceiling plate 82 of the operating member 80. [ Between the forward regulating member 821c and the rear regulating member 821d, a prismatic releasing plate 83 having a substantially trapezoidal bottom face is erected downward from the ceiling plate 82. [ The right side of the engagement release plate 83 is disposed in contact with the inner surface of the right side plate 81b. The front end portion and the left end portion of the rear end portion of the engagement release plate 83 are each formed as an inclined surface. A concave groove portion is formed at the boundary between the engaging / disengaging plate 83 and the right plate 81b. As shown in Fig. 2, on the upper surface of the operating member 80, a groove-like concavo-convex portion is formed in the lateral direction. The concavo-convex portion functions as a non-slip portion when the user slides the operating member 80 in the front-rear direction.

The lock member 90 is formed in a flat plate shape having a substantially rectangular body portion. On the upper surface of the lock member 90, there is formed an operation handle 91 which is a protrusion of a long straight line in the front and rear direction. The operation knob 91 is used when the user moves the lock member 90 in the left-right direction. On the lower surface of the main body portion of the lock member 90, as shown in an enlarged view B in Fig. 3, a guide pillar 92 is erected downward at the corners of the four corners. Each guide post 92 has a return projection 921 which protrudes outward in the forward and backward directions from its lower end. The return projection 921 is formed so as to be gradually inclined from the front end side toward the base end side of the lock member 90 so as to become thick. The inclined surface of the return projection 921 of the front side guide column 92c is formed on the front side and the inclined surface of the return projection 921 of the rear side guide column 92d is formed on the rear side.

Each guide post 92 is inserted corresponding to a mounting hole 441 provided in the spot facing portion 44, respectively. Further, the return projection 921 is provided at the exposed portion of the lower end portion penetrating the mounting hole 441. Therefore, the return projection 921 can prevent the lock member 90 from being detached from the mounting hole 441 of the end cap 40. [

A lock pin 93 is formed at the lower center of the main body portion of the lock member 90 so as to be erected downward. The lock pin (93) has its tip bent in an L-shape toward the left side of the end cap (40). The lock pin (93) is inserted into the lock pin insertion through hole (442) provided in the spot facing portion (44). On the back side of the lock member 90, grooves 94a and 94b extending in the front-rear direction are formed on the left and right sides, respectively. Each of the groove portions 94a and 94b is divided into a front side and a rear side where the lock pin 93 is interposed therebetween. The left and right groove portions 94a and 94b engage with the engagement protrusions 443 of the end cap 40. [

Fig. 4 (a) is a sectional view taken along the line IV-IV in the position of the lock member 90 of the cutter 10 shown in Fig. 1, showing the unlocked state. Fig. 4 (b) shows the locked state in the IV-IV cross-sectional view. The guide pillar 92 and the lock pin 93 of the lock member 90 are inserted into the mount hole 441 and the lock pin insertion through hole 442 each formed in an elongated hole shape, And can be moved in the lateral direction of the body 10. When the lock member 90 is slid to the right side of the drawing (the left side of the cutter 10), the tip end of the L-shaped lock pin 93 provided on the lower surface of the lock member 90, And is inserted into the lock hole 531 as shown in the figure. When the lock pin (93) is inserted into the lock hole (531), the slider (50) is restricted from moving back and forth. Further, in the locked state, since the lock member 90 is provided on the end cap 40, the back and forth movement of the end cap 40 is also restricted. That is, by operating the lock member 90, the use of the cutter 10 can be restricted while regulating the removal of the end cap 40 of the cutter 10.

When the lock member 90 is in the right position of the cutter 10 (the unlocked state in Fig. 4 (a)), the left side of the lock member 90 And the engaging protrusion 443 engages with the groove portion 94a of the engaging protrusion. When the lock member 90 is in the left position of the cutter 10 (the locked state in Fig. 4 (b)), the right groove portion 94b provided on the back surface of the lock member 90 and the engagement protrusions 443 ). Therefore, the lock member 90 is fixed in either the locked state or the unlocked state.

Next, the operation from the stored state of the cutter 10 to the use state will be described. 5 is a V-V cross-sectional view of the cutter 10 of Fig. 1, wherein (a) shows a stored state and (b) shows a used state. 6 is a sectional view taken along the line VI-VI of the cutter 10 shown in Fig. 5, wherein (a) shows a stored state and (b) shows a used state. 7 is a cross-sectional view of the cutter 10 of Fig. 5 taken along line VII-VII of Fig.

5 (a), the sliding protrusion 631 is inserted into the front side of the holding hole 73, as shown in Fig. 6 (a). The apex of the operating projection 632 on the side of the slider 50 and the front and rear surfaces inclined from the apex toward the bottom plate 61 are in contact with the pressing portion 561 along the position of the slider 50. [ In the accommodated state, the operating projection 632 is positioned in front of the forward inclined portion 561c of the pressing portion 561. [ The front end inclined portion 83c of the engagement release plate 83 provided on the operation member 80 is engaged with the front engagement portion 83c The protrusion 584c is pushed out in the left front direction (downward left direction in Fig. 7) to release the engagement with the notch portion 321. [ As a result, the operation portion 52 can be moved forward. The engaging projection 584d on the rear side is bent in the leftward direction (downward in Fig. 7) along with the forward movement of the operating portion 52, and the engagement with the notch portion 321 is released.

5 (a), when the slider 50 is moved forward, the lower latching protrusion 562 pushes the upper latching protrusion 661 upward so that the center of the latching portion 66 is elastically biased upward . Therefore, since the slider 50 needs a predetermined force to move the blade 70, it is prevented that the blade 70 is moved inadvertently together with the slider 50. [

Fig. 8 is a cross-sectional view of the cutter 10 from the housed state of Fig. 6 (a) to the state of use of Fig. 6 (b). The sliding member 70 is inserted into the holding hole 73 which is an elongated hole with a predetermined clearance so that the blade 70 can be moved along with the slider 50 As shown in FIG. 8, when the operating projection 632 rides on the forward inclined portion 561c and is located on the flat portion of the pressing portion 561, the sliding plate 63 is moved to the right side of the tray 60 The upper side in Fig. 8). Thereby, the sliding projection 631 is moved away from the holding hole 73, and the forward movement of the blade 70 is further made possible. When the slider 50 is further moved forward, the pressing portion 561 moves forward of the operation protrusion 632 and comes into contact with the sliding protrusion 631 which has moved toward the slider 50 side by the elastic force. As a result, the sliding projection 631 is positioned on the flat portion of the pressing portion 561, and the rightward deflection of the sliding plate 63 is maintained. 6 (b), when the pressing portion 561 moves forward of the sliding projection 631, the deformation of the sliding plate 63 is returned to the original position by the elastic force, (70) is exposed to the outside through the through-hole (31).

When the forward operation of the slider 50 is completed and the user releases the operation of the operating member 80, the engaging projections 584c and 584d of Fig. 7 engage with one of the notches 321 . Therefore, the forward and backward movement of the slider 50 is restricted, and the projecting amount of the blade 70 can be fixed. The appearance of the cutter 10 in use in Figs. 5 (b) and 6 (b) is shown in a perspective view of Fig. 1 (b).

Also, when the slider 50 is moved backward, the engaging projections 584c and 584d shown in Fig. 7 operate similarly to the case of moving the slider 50 forward. That is, when the operating member 80 is pushed back by the user, the rear end inclined portion 83d of the engaging / disengaging plate 83 provided on the operating member 80 is engaged with the rear engaging projection 584d And is pushed out in the backward direction (right downward direction in Fig. 7) to release the engagement with the notch portion 321. [ As a result, the operating portion 52 can be moved backward. The engaging projection 584c on the front side is bent in the leftward direction (downward in Fig. 7) with the movement of the operating portion 52 toward the rear side, and the engagement with the notch portion 321 is released. As described above, the engagement release plate 83 releases the engagement of the engagement protrusions 584c and 584d with the notches 321 in the moving direction of the slider 50 by the forward and backward operation of the operation member 80 .

The embodiment of the present invention has been described above, but the present invention is not limited to this embodiment, and various modifications can be made. The slider 50 has the function of moving the blade 70 forward and the function of pulling out the sliding movement protrusions 631 inserted into the blade 70 by the engaging projections 563 Although the embodiment is realized by a single member including the pressing portion 561, the pressing portion 561 may not be provided. For example, the sliding projection 631 may be a protrusion of a convex arc shape inclined in the front-back direction. Therefore, by sliding the operating member 80 forward beyond a predetermined force, the sliding projection 631 rides on the rear edge of the holding hole 73 to hold the blade body 70 and the tray 60 The support can be released.

Further, the replacement blade 20 and the slider 50 can be configured as one set. In this case, the replacement blade, which is exchanged as a consumable item of the cutter 10, may include the tray 60, the blade 70 and the slider 50. Therefore, the operation of installing the slider 50 at the time of replacement of the replacement blade can be omitted, and the replacement work can be facilitated.

In addition, the slider 50 and the blade 70 can be provided with holes, such as two or more round holes or angled holes, in the blade 70. Alternatively, one or a plurality of cutouts may be formed in the blade 70, and the slider 50 and the blade 70 may be fixed by engaging the slider 50 with the cutout.

The method of releasing the engagement between the holding hole 73 and the sliding protrusion 631 is a method in which the pressing portion 561 causes the sliding plate 63 to be bent by the forward movement of the slider 50 Not limited. For example, another member interlocked with the operation of the operating member 80 may come in contact with the left side of the sliding plate 63, and the sliding plate 63 may be bent. Alternatively, a releasing member independent of the slider 50 is provided on the outer surface of the main body case 30, and the operation protrusion 632 or the like is pushed by a member interlocked with the pressing operation or the sliding operation of the releasing member, 63 may be bent.

Further, the holding hole 73 is not limited to the long hole shown in the present embodiment, but may be, for example, one or a plurality of round holes or angular holes.

The method of attaching and detaching the sliding protrusion 631 may be configured by another method. For example, the main body case 30 can be provided with a lock member for switching the holding state and the holding releasing state of the blade 70 and the sliding projection 631 by a sliding operation or a pressing operation. The sliding protrusion 631 may be pressed by a coil spring or the like when the sliding protrusion 631 is inserted through the holding hole 73.

The blade tip 71 formed on the blade 70 may be a single blade.

The present invention provides a cutter replacement blade having reduced contact with the blade of a replacement blade at the time of replacing the replacement blade, and a cutter provided with the blade.

10: Cutter
20: Replacement Day
30: Body case
30a: left side
30b: Right side
30c: front end face
30f:
31:
32: Slit
33: Inside
33a: left inner wall
33b: right inner wall
33e: upper inner wall
34: rear opening
35: opening receptacle
35a: Left side
35b: Right side
35f:
36: tray holding part
36e: concave frame part
36e1: concave groove
36f:
37: Slider left compartment
38: Slider upper storage part
301: Operation recess
302:
303: Long rectangular groove
311: arcuate projection
321:
333: anterior chamber
334: Middle plate
334a: Left end face
351a to 351c: guide grooves
352:
353:
354:
355: concave frame part
356: guide projection
40: End cap
40d: rear end face
41: front opening
41a: guide face
4lb: guide face
42: Through hole
43a: guide rail
43b: guide rail
44: spot facing portion
421: inner wall portion
422: Through hole
431:
441: Mounting hole
442: Locking pin insertion hole
443:
50: Slider
51: slide plate
51e:
51f:
52:
53: Fixing plate
54: Guide rail
55: Guide groove
57:
58: Fixed plate
531: Locking hole
532:
533: Groove
561:
561c: forward inclined portion
561d:
561e: Plate
562: lower latching projection
563: engaging projection
563a:
564: Loading stand
564a: flat surface
571, (571a, 57lb): contact projection
572:
581: Returning projection
582: front branch plate
583: rear branch plate
584c, 584d:
60: Tray
61: bottom plate
61e:
61e1, 61e2: upper pressing wall
61f:
61f1, 61f2: Lower pressing wall
62: Long rectangular concave
63: Sliding plate
63c: Fleet
63d: fixed end
64e: upper window hole
64f: Lower window hole
66:
68:
611: guide plate
612: Long hole
613: protruding face
621: Through hole
631: Sliding projection
632: Operation protrusion
633c: front projection
633d: rear projection
634:
635: rib portion
651:
652:
661: upper latching projection
661c: flange portion
661d: flange portion
662: support projection
663:
664c:
664d: protrusion
671:
671e: bounce projection
672: rear pressure plate
673: contact protrusion
681: Groove
682: columnar projection
683:
684: Operation panel
70:
71: End point
72:
73: Retaining hole
70d: rear end inclined surface
80: Operation member
81a: Left side plate
81a1: Inner latching projection
8lb: Right side
8lb1: Inner latching projection
82: Ceiling board
83:
83c: front end inclined portion
83d: rear end inclined portion
821c:
821d: rear regulating member
90:
91: Operation knob
92 (92c, 92d): guide post
93: Lock pin
94a:
94b:
921: Returning projection

Claims (8)

A tray having a latching part,
And an agitating member having a to-be-engaged portion that is received in the tray so as to be movable forward and backward and is engaged with the engaging portion,
Wherein the engaging portion engages with the engaged portion in a detachable manner. The method according to claim 1,
The engaging portion is a sliding protrusion protruding from a sliding plate in the form of a cantilever spring installed on the tray,
Wherein the engaged portion is an elongated hole formed in the blade. A cutter comprising a main body case for detachably storing the cutter replacement blade according to claim 1 or 2, wherein the blade body is capable of protruding and retracting. And a main body case for detachably storing the cutter replacement blade according to claim 2,
And a slider having an operating member and a pressurizing portion and formed so as to be fixed to the blade,
The tray is fixed with respect to the case,
Wherein the slider is provided so as to be movable back and forth with respect to the case,
Wherein the sliding plate is provided with an operating protrusion for contacting the pressing portion in accordance with the forward and backward movement of the slider. 5. The method of claim 4,
The case has a slit formed on the upper surface along the front-rear direction, and a plurality of notches cut out in the left-right direction from the slit,
Wherein the slider has a latching protrusion that engages with the notch,
Wherein the operating member has a latching release plate for releasing the engaging engagement of the engaging projection with the cutout portion in the moving direction of the slider. 5. The method of claim 4,
Wherein the slider is detachably mounted to the blade. 6. The method of claim 5,
Wherein the slider is detachably mounted to the blade. 8. The method according to any one of claims 4 to 7,
An end cap detachably installed at a rear end of the case,
And a lock member for restricting attachment / detachment of the end cap and forward / backward movement of the slider.

Images