JP2019098447A - Cutting device - Google Patents

Abstract

To provide a cutting device that flexibility of design to form a rail supporting a slider is superior.SOLUTION: A cutting device A comprises a base, a rail C, a paper presser F, and a slider J holding a rotary cutter which can cut paper in a position outside than the one side edge of the rail C and supported to be able to slide shift for the rail C. Reaction force denial means 9 which can deny reaction force that the rotary cutter catches from the paper at cutting operation is provided to another side edge of the rail C.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a cutter for cutting paper.

  2. Description of the Related Art A so-called rotary type cutting machine is known that can cut sheets placed on a base by cooperation of the rotary blade and the base by moving a slider holding a rotary blade to the base back and forth. (See, for example, Patent Document 1). The slider holding the rotary blade is slidably supported on a rail disposed on the base.

  Generally, the rotary blade of the slider is not disposed at a position coincident with the widthwise center of the rail. In other words, the rotary blade of the slider is disposed outside the outer edge of the rail.

  When cutting the sheet, the rotary blade arranged on the slider presses the sheet from the upper side by the operation of the user. On the other hand, the slider receives a reaction force from the sheet, and the reaction force acts on the rail supporting the slider to cause a certain twist. In the case where a certain twist occurs in the rail, there is a possibility that the sheet can not be cut linearly.

  In the conventional cutter, the reaction force received from the sheet to be cut by the slider is absorbed by the rigidity of the rail supporting the slider. That is, the conventional cutter needs to provide the rail with rigidity that can overcome the torsional stress. In other words, conventional cutters have significantly limited design freedom for constructing the rails that support the sliders.

JP 2000-176881 A

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a cutting machine excellent in the degree of freedom of design for forming a rail supporting a slider.

  That is, the present invention has the following configuration.

  According to the first aspect of the present invention, a base having an upper surface on which the sheet is disposed, and a lower position close to the base and an upper position spaced apart from the lower position are movable A supported rail, a sheet press supported by the rail and capable of holding the sheet to be cut at least at the lower position, and a rotary blade capable of cutting the sheet at a position outside one side edge of the rail And a slider slidably supported relative to the rail, wherein the rotary blade receives the sheet from the sheet at the time of the cutting operation on the opposite side of the rotary blade with the rail interposed therebetween. It is a cutter provided with a reaction force canceling means capable of canceling a reaction force.

  In the invention according to claim 2, the rail is attached to a rail body extending linearly in the front-rear direction, a front rail receiving member attached to the front end of the rail body, and a rear end of the rail body And a protrusion provided integrally with the front rail receiving member and the rear rail receiving member, and the protrusion at the lower position. The cutting machine according to claim 1, further comprising: an abutting portion provided on the base which can be in direct contact.

  The invention according to claim 3 is characterized in that the rail is biased in the direction of the upper position by a biasing member disposed between the front rail receiving member and the base, and the rear rail receiving member The cutter according to claim 2, wherein the rail is biased toward the upper position by a biasing member disposed between the base and the base.

  The invention according to a fourth aspect is the cutting machine according to the second or third aspect, in which the projecting portion can abut on a portion of the base other than the sheet arrangement range.

  In the invention according to claim 5, the paper presser is supported so as to be relatively movable in the vertical direction with respect to the rail, and the biasing member for the paper presser interposed between the paper presser and the rail. The cutter according to claim 1, 2, 3 or 4, wherein the cutter is biased in the direction of the upper surface.

  The invention according to claim 6 is that the slider supports the rotary blade so as to be movable relative to the slider main body in the vertical direction, and the rotary blade is a biasing member for the rotary blade. The cutter according to claim 1, 2, 3, 4 or 5, wherein the cutter is biased in the direction of the upper surface.

  As described above, according to the present invention, it is possible to provide a cutting machine excellent in the degree of freedom of design for forming a rail supporting a slider.

1 is a perspective view showing an embodiment of the present invention. The front view in the embodiment. The rear view in the embodiment. The top view in the embodiment. The right view in the embodiment. The left view in the embodiment. The perspective view in the embodiment. The disassembled perspective view in the embodiment. The disassembled perspective view in the embodiment. XX sectional drawing in FIG. Operation | movement explanatory drawing of FIG. 10 in the embodiment. The YY sectional view taken on the line in FIG. Operation | movement explanatory drawing of FIG. 12 in the embodiment. The elements on larger scale of the front in FIG. Operation | movement explanatory drawing of FIG. 14 in the embodiment. The elements on larger scale of the rear in FIG. Operation | movement explanatory drawing of FIG. 16 in the embodiment. Operation | movement explanatory drawing of FIG. 14 in the embodiment. Operation | movement explanatory drawing of FIG. 16 in the embodiment. The perspective view of the slider in the embodiment. The disassembled perspective view of the slider in the embodiment. The disassembled perspective view of the slider in the embodiment. The disassembled perspective view of the slider in the embodiment. The right view which shows the rail support member of back and front which is other embodiment. The perspective view which shows the rail support member of back and front which is other embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

  The cutting machine A is separated from the base B by a base B having an upward surface k1 on which the sheet P is disposed, a lower position (a) close to the base B, and the lower position (a) A rail C supported movably between the upper position (b), a sheet presser F supported by the rail C and capable of pressing from above the sheet P to be cut at least at the lower position (a); It is provided with a slider J which holds the rotary blade z1 which can be cut and is slidably supported relative to the rail C. The cutting machine A can cut the sheet P disposed on the base B by the cooperation of the rotary blade z1 and the base B by moving the slider J holding the rotary blade z1 forward and backward with respect to the base B. It is a so-called rotary type.

  The cutting machine A in this embodiment is provided at the front end which is one end of the rail C and has a rail lock mechanism H on the front side which can lock the rail C at the lower position (a) and the other end of the rail C A rear rail lock mechanism I is provided on the other end side which is provided at the rear end portion which is a part and which can lock the rail C at the lower position (a). The front and rear rail lock mechanisms H and I can be operated independently of each other.

  Hereinafter, the cutting machine A will be described in detail.

<< Base B >>
The base B is provided on a base body K having an upward facing surface k1 on which the sheet P is disposed, a front base portion L provided at the front end of the base body K, and a rear end of the base body K. And a rear base portion M. The base B is mounted on a mounting surface such as a top plate (not shown) at the time of use. The base B can cut the sheet P in cooperation with the rotary blade z1. The upward facing surface k1 of the base body K is set as a sheet arrangement range in which the sheet P can be arranged.

  The base B has the blade holder b1 at a position where the blade edge z12 which is the tip of the rotary blade z1 can abut. The blade holder b1 is replaceable, for example, when degradation occurs due to repeated use. The blade receiver b1 is disposed in a recess b2 for blade receiver disposition formed on the upper surface side of the right side edge which is one side edge of the base B. In a state where the rear end portion of the blade receiver b1 is positioned on the rear base portion M, the blade receiver b1 is prevented from being detached from the inside of the blade receiving disposition recess b2 by the blade receiver holding member 19 rotatably provided on the front base portion L. Is held by

<Base body K>
The base body K is located at the front-rear direction middle portion of the base B. The upward facing surface k1 of the base body K is formed in a substantially planar shape so that the sheet P can be placed thereon. Below the recess b2 for blade receiving arrangement in the base main body K, a reinforcing material (not shown) is provided along the recess b2 for blade receiving arrangement.

<Pre-base part L>
The front base portion L includes a front base portion main body 1 whose upper surface is set to a position higher than the base main body K, and a front back plate member 2 disposed below the front base portion main body 1.

  The front base portion main body 1 is a first concave portion which can be provided with a front rail lock mechanism H provided at a front end portion and can form an operation space for performing an operation related to the front rail lock mechanism H 11 and a second recessed portion 12 provided on the rear side of the first recessed portion 11 and in which the lower portion of the front rail receiving member Q constituting the rail C can be disposed.

  The front base portion main body 1 is provided with a boss 13 erected in the second recessed portion 12 and capable of holding the front spring D as an urging member, and a front rail receiving member Q erected in the second recessed portion 12 A guide rail 14 which can guide the upper and lower sides, a receiving recess 15 which is an abutting portion formed at a position close to the left side edge of the rail C and to which a projection 53 provided on the front rail receiving member Q can abut An insertion hole for inserting the base portion s1 which is the lower end portion of the rail support member S before configuring the rail lock mechanism H and for supporting the front rail support member S to be able to slide forward and backward on the front back plate member 2 It has 16 and. The receiving recess 15 engages with the protrusion 53 of the front rail receiving member Q when the rail C is at the lower position (a), and constitutes a reaction force canceling means 9.

  On the bottom surface side of the front base portion main body 1, an upward engaging projection s11 provided on the front rail support member S is adjacent to the first recess 17 which can be engaged by elastic deformation and the first recess 17 An upward engaging projection s11 provided on the front rail support member S is provided with a second recess 18 which can be engaged by elastic deformation.

  The front back plate member 2 supports the front base portion main body 1. The front back plate member 2 includes an extending portion 21 extended to the base main body K side, and can support the front portion of the base main body K from the lower side.

<After base part M>
The rear base portion M includes a rear base portion 3 whose upper surface is set to a position higher than the base main body K, and a rear back plate 4 disposed under the rear base portion 3.

  The rear base portion main body 3 is a first recess which can be provided at a rear end portion and can be provided with a later rail lock mechanism I and can form an operation space for performing an operation related to the later rail lock mechanism I It has a portion 31 and a second recessed portion 32 which can be provided on the front side of the first recessed portion 31 and can be provided with the lower portion of the rear rail receiving member R which constitutes the rail C.

  The rear base portion main body 3 is provided with a boss 33 erected in the second recessed portion 32 and capable of holding the rear spring E as an urging member, and a rear rail receiving member R erected in the second recessed portion 32. The guide rail 34 which can guide the vertical direction, the receiving recess 35 which is an abutting portion formed at a position close to the left side edge of the rail C and to which the projecting portion 73 provided on the rear rail receiving member R can abut Insertion for inserting the base portion t1 which is the lower end portion of the rear rail support member T constituting the rail lock mechanism I and supporting the rear rail support member T so as to be able to slide forward and backward on the rear back plate member 4 And a hole 36. The receiving recess 35 engages with the projecting portion 73 of the rear rail receiving member R when the rail C is at the lower position (a), and constitutes a reaction force canceling means 9.

  The rear base portion main body 3 is adjacent to the first recess 37 and the first recess 37 which can be engaged by elastic deformation by the upward engaging protrusion t11 formed on the bottom surface side and provided on the rail support member T after it. An upward engaging projection t11 provided on the rear rail support member T after the second support 38 is provided with a second recess 38 engageable by elastic deformation. The rear base portion main body 3 is provided with a blade unit storage lid 39 capable of closing the storage chamber capable of storing the replacement blade unit Z so as to be able to open and close.

  The rear back plate member 4 supports the rear base portion main body 3. The rear back plate member 4 includes an extending portion 41 extended to the base main body K side, and can support the rear portion of the base main body K from the lower side.

<< Rail C >>
The rail C can support the slider J slidably in the front-rear direction. The rail C includes a rail body N linearly extending in the front-rear direction, a front rail receiving member Q attached to the front end of the rail body N, and a rear rail receiving member R attached to the rear end of the rail body N And will be equipped. The rail body N, the front rail receiving member Q, and the rear rail receiving member R can operate integrally.

  The rail C is close to the base B and can be pressed by the paper presser F supported by the rail C at a lower position (a) and an upper position (b) located above the lower position (a) And is disposed on the base B so as to be able to move up and down. When the rail C is in the upper position (b), a sheet sk for inserting the sheet P into which the sheet P to be cut can be inserted between the lower surface which is the sheet pressing surface of the sheet presser F and the upper surface k1 of the base B Is to be formed.

  The rail C is always biased in the direction of the upper position (b) by a front spring D and a rear spring E which are biasing members disposed between the rail C and the base B. More specifically, the rail C is biased toward the upper position (b) by the front spring D interposed between the front rail receiving member Q and the front base portion L, and the rear rail receiving member It is biased in the direction of the upper position (b) by a rear spring E interposed between R and the rear base portion M.

<Rail body N>
The rail body N has a channel-shaped outer rail member n1 integrally having a bottom wall n11 and side walls n13 erected from both side edges of the bottom wall n11, and an inner rail mounted on the outer rail member n1 And a member n2. The outer rail member n1 and the inner rail member n2 are connected by a screw v2 at a plurality of places.

  The bottom wall n11 of the outer rail member n1 is formed with an insertion hole n12 through which a boss f1 provided upright on the paper presser F can be inserted so as to be able to move up and down.

  The inner rail member n2 includes a top wall n21 disposed at a position connecting the upper ends of the side walls n13 of the outer rail member n1. A guide groove n22 for positioning the slider J is provided on the top surface of the top wall n21 of the inner rail member n2. A positioning projection u12 protruding in the engagement recess u11 of the slider base U can be engaged with the guide groove n22.

  On the lower surface side of the top wall n21 of the inner rail member n2, a downward boss portion n23 is formed, the lower end portion of which is positioned in the insertion hole n12 of the outer rail member n1. The downward boss portion n23 is inserted into the through hole f3 of the upward boss portion f1 provided to project from the paper presser F. And the washer wa which is a securing member is attached to the front-end | tip of the downward boss part n23 with the screw v1.

  The washer wa serving as a retaining member is in contact with the lower surface of a flange portion f2 formed on the inner surface side of the boss portion f1 of the paper presser F so that the paper presser F does not come off the rail C downward. For the paper press between the rail C and the paper press F, that is, between the inner surface of the top wall n21 of the inner rail member n2 and the upper surface of the flange portion f2 formed on the outer surface side of the boss f1 of the paper press F A paper pressing spring G, which is a biasing member, is disposed.

Front rail receiving member Q
The front rail receiving member Q is attached to the rail body N by a screw v3. The front rail receiving member Q is made of synthetic resin. The front rail receiving member Q has a box-like shape opened downward, and a front rail receiving member main body 5 supporting the front end portion of the rail main body N on the upper surface side and a front rail receiving member main body 5 And a rail lock mechanism engaging portion 6 engageable with the rail lock mechanism H.

  The front rail receiving member main body 5 extends in the vertical direction, and a guide rail engaging portion 51 which can be externally fitted to the guide rail 14 of the front base portion L, and a screw v3 for connecting to the front end of the rail main body N And a rectangular piece-like protrusion which can be in direct contact with the receiving recess 15 which is a contact portion formed on the front base portion L at the lower position (a) and provided in the lower position (a). And a unit 53. The protrusion 53 directly engages with the receiving recess 15 of the base B, and constitutes a reaction force canceling means 9.

  The rail lock mechanism engaging portion 6 includes an upright wall 61 provided upright from the front end edge of the front rail receiving member main body 5 and left and right side walls 65 extending forward from the left and right side edges of the upright wall 61. And a bridge 66 connecting the lower portions of the front edges of the left and right side walls 65.

  The upper end portion of the standing wall 61 constituting the rail lock mechanism engaging portion 6 has a pressing inclined surface 63 projecting forward and facing diagonally downward and located above the pressing inclined surface 63 An engagement protrusion 62 having a flat engagement portion 64 facing upward is provided. The engagement protrusion 62 is a portion that can be directly engaged with the front rail support member S that constitutes the front rail lock mechanism H.

<Rear rail receiving member R>
The rear rail receiving member R is attached to the rail main body N by a screw v3. The rear rail receiving member R is made of synthetic resin. The rear rail receiving member R has a box shape opened downward, supports the rear end portion of the rail main body N on the upper surface side, and is provided at the rear of the rear rail receiving member main body 7 and the rear rail receiving member main body 7 And a rail lock mechanism engaging portion 8 engageable with the rail lock mechanism I.

  The rear rail receiving member main body 7 extends in the vertical direction and can be externally fitted to the guide rails 34 of the rear base portion M, and a screw v3 for connecting to the rear end of the rail main body N The screw insertion hole 72 to be inserted and the rectangular piece shape which can be in direct contact with the receiving concave portion 35 which is a contacting portion formed in the rear base portion M at the lower position (a) is provided so as to protrude on the left side And a projecting portion 73. The projecting portion 73 directly engages with the receiving recess 35 of the base B, and constitutes a reaction force canceling means 9.

  The rail lock mechanism engaging portion 8 is a standing wall 81 erected from the rear end edge portion of the rear rail receiving member main body 7, and left and right side walls extending rearward from the left and right side edges of the standing wall 81. A bridge portion 86 is provided to connect between the lower portions of the rear edge portions of the left and right side walls 85.

  The upper end portion of the standing wall 81 constituting the rail lock mechanism engaging portion 8 has a pressing inclined surface 83 projecting rearward and directed obliquely downward, and located above the pressing inclined surface 83 An engagement projection 82 having a flat engagement portion 84 facing upward is provided. The engagement protrusion 82 is a portion that can be directly engaged with the rear rail support member T that constitutes the rear rail lock mechanism I.

  In the cutting machine A in this embodiment, on the left side edge side which is the other side edge side of the rail C, the rotary blade z1 arranged on the right side edge side which is the one side edge side of the rail C A reaction force canceling means 9 is provided which can be canceled.

  That is, in the reaction force canceling means 9, the protrusions 53 and 73 integrally provided on the front rail receiving member Q and the rear rail receiving member R respectively, and the protrusions 53 and 73 directly at the lower position (a) It is mainly composed of receiving concave portions 15 and 35 which are contact portions provided on the base B so as to be in contact with each other. The reaction force canceling means 9 is provided on the opposite side of the rotary blade z1 across the rail C.

  The reaction force canceling means 9 is a side on which the rotary blade z1 is positioned via the rail C by means of the rail C, the reaction force that the slider J receives from the sheet P by the operation of the slider J by the user (that is, the operation to cut the sheet P). By transmitting it to the base B on the opposite side, the overall twist of the rail C in the lower position (a), more specifically speaking, of the rail C which is about to rotate around the clock in front view It is capable of exhibiting a so-called stabilizer function capable of suppressing twisting.

  That is, in order to cut the sheet P, the user holds the slider J and pushes the slider J in the direction of the upward surface k1 of the base B, and then the slider J along the rail C in the front-rear direction I will slide it. At this time, the user pushes down the slider J supported by the rail C substantially vertically downward, while the rotary blade z1 provided on the slider J is at a position deviated from the center of the rail C in the width direction. The reaction force received from the sheet P acts in the direction in which the rail C is twisted. In particular, since the blade unit Z having the rotary blade z1 is supported by the blade holder w3 biased downward by the blade holder spring w4, the slider J receives a constant reaction force from the sheet P. .

  Even when the user operates the slider J and receives a reaction force from the sheet P by the action of the reaction force canceling means 9, the twist of the rail C is suppressed, and the slider J is a sheet P can be cut straight.

<Paper holder F>
The paper presser F is supported so as to be movable relative to the rail C in the vertical direction, and the paper presser spring G as a paper presser biasing member interposed between the paper presser and the rail C always It is biased in the direction. The paper presser F can exhibit a function of pressing the paper P to be cut from the upper side when the rail C is at the lower position (a). When pressing the sheet P, the sheet pressing spring G is compressed by receiving the reaction force on the base B side. Then, the paper presser F at this time is pressed by the paper P disposed on the base B and moves in a direction approaching the rail C.

  The paper presser F extends in the front-rear direction, and a paper presser main body f4 having a flat plate-like portion whose lower surface can contact the upper surface of the paper P, and a boss f1 integrally projecting upward from the paper presser main body f4. And are provided. The boss portion f1 is a stepped tubular member forming a through hole f3 and has a flange portion f2 for forming a stepped portion on the outer surface side and the inner surface side in the vertical direction middle portion.

  In this embodiment, the rail C is substantially parallel to the upper surface k1 of the base B because the front rail lock mechanism H and the rear rail lock mechanism I can be operated independently of each other. May not take a good attitude. However, even when the paper presser F of the present embodiment is inclined to the rail C, the expansion and contraction degree of the paper presser springs G provided in plural in the longitudinal direction of the paper presser main body f4 is different. It is something that can hold a part.

<Front and rear rail lock mechanism H, I>
The front rail locking mechanism H is provided at the front end of the rail C, that is, on the outside of the front rail receiving member Q. The front rail lock mechanism H is directly engaged with the front rail receiving member Q, and can lock the rail C at the lower position (a).

  The rear rail lock mechanism I is provided at the rear end portion of the rail C, that is, on the outside of the rear rail receiving member R. The rear rail lock mechanism I is directly engaged with the rear rail receiving member R and can lock the rail C at the lower position (a).

  The front and rear rail lock mechanisms H and I can be operated independently of each other. That is, the cutter A of this embodiment can lock only one of the front rail lock mechanism H and the rear rail lock mechanism I at the lower position (a). In other words, the user can operate only one of the front rail locking mechanism H and the rear rail locking mechanism I.

  The front and rear rail lock mechanisms H and I are moved from the upper position (b) to the lower position (a) without directly touching the rail C in accordance with the downward pressing operation on the slider J by the user. The rails C can be automatically locked independently at the lower position (a). For example, the user holds the slider J located on the front side (front side) of the rail C, and applies the load downward to the rail C at the upper position (b) via the slider J When an operation to cut (that is, an operation to slide the slider J backward) is performed, the operation to lock the rail C to the lower position (a) in the order of the front rail lock mechanism H and the rear rail lock mechanism I is performed. It can be implemented automatically.

  The front rail locking mechanism H is provided with a locking portion s21 attached to the base B and engaged with the engaging portion 64 of the front rail receiving member Q to hold the rail C at the lower position (a) The rail support member S is provided.

  The rear rail lock mechanism I is attached to the base B and provided with a locking portion t21 which can be engaged with the engaging portion 84 of the rear rail receiving member R to hold the rail C at the lower position (a) The rail support member T is provided.

  The front and rear rail support members S and T are made of synthetic resin excellent in elastic deformation. The front and rear rail support members S and T have substantially horizontal posture, and are supported by the base portions s1 and t1 supported on the base B and the outer edges of the base portions s1 and t1 by elastic deformation of the members. And rising portions s2 and t2 that can operate. The front and rear rail support members S and T have a substantially L-shape in a side view by the base portions s1 and t1 and the standing portions s2 and t2.

  The front and rear rail support members S and T are lockable positions (sa) capable of locking the rail C at the lower position (a) and retracted positions (sb) at which the rail C can not be locked at the lower position (a) It is supported by the base B so that it can take () and (tb). In other words, the front and rear rail lock mechanisms H and I are capable of locking the rail C in the lower position (a) and the lock ineffective state where the rail C can not be locked in the lower position (a). It is configured to be selectable.

  The front and rear rail support members S and T are lockable positions (sa) and (ta) which can take a lock effective state in which the rail C can be locked at the lower position (a), and the rail C lower position (a) The sliding member is supported so as to be slidable in the front-rear direction with respect to the base B between retracted positions (sb) and (tb) which can take a lock invalid state which can not be locked.

  Engaging projections which can be selectively resiliently engaged with the first and second recesses 11, 31, 12, 32 provided in the base B at the base portions s1, t1 of the front and rear rail support members S, T It has s11 and t11. When the front and rear rail support members S and T are in the lockable positions (sa) and (ta), the engagement protrusions s11 and t11 are engaged with the first recesses 11 and 31, When the front and rear rail support members S and T are at the retracted positions (sb) and (tb), the engagement protrusions s11 and t11 are engaged with the second recesses 12 and 32, respectively.

  In the process of the rail C moving from the upper position (b) to the lower position (a) on the inner surface side of the standing portions s2, t2 of the front and rear rail support members S and T, the front rail receiving member Q and the rear rail Pressed inclined surfaces s22 and t22 which are pressed by the pressed inclined surfaces 63 and 83 provided on the outer surface side of the receiving member R are provided. Pressed inclined surfaces 63, 83 of the front rail receiving member Q and the rear rail receiving member R in which the pressed inclined surfaces s22, t22 provided on the front and rear rail supporting members S, T descend from the upper side to the lower side. , The entire upstanding portions s2 and t2 of the front and rear rail support members S and T temporarily retract outward due to elastic deformation of the members, and move the rail C to the lower position (a). Allow that.

  Under the pressed inclined surfaces s22 and t22 at the rising portions s2 and t2, there are provided locking portions s21 and t21 which can be engaged with the engaging portions 64 and 84 of the front rail receiving member Q and the rear rail receiving member R. There is. The locking portions s21 and t21 have flat portions facing downward. The locking portions s21 and t21 can be engaged with engaging portions 64 and 84 having flat portions facing upward in the front rail receiving member Q and the rear rail receiving member R, respectively. When the locking portions s21 and t21 engage with the engaging portions 64 and 84, the rail C is held at the lower position (a).

  The upper end of the rising portions s2 and t2 of the front and rear rail support members S and T are provided with release operation parts s23 and t23 capable of releasing the locked state of the rail C locked at the lower position (a) There is. The release operation parts s23 and t23 are parts which can lock the user's finger. The release operation portions s23 and t23 can temporarily elastically deform the rising portions s2 and t2 of the front and rear rail support members S and T outward by the operation of the user. When the release operation parts s23 and t23 are operated by the user, the locking parts s21 and t21 having the downward surface of the front and rear rail support members S and T, the front rail receiving member Q and the rear rail receiving member R And the engaging portions 64 and 84 having the upward facing surface k1 separate from each other, and as a result, the state in which the engaging portions s21 and t21 can engage with the engaging portions 64 and 84 can be released. There is.

  A slide operation that can selectively slide the lockable position (sa), (ta) and the retracted position (sb), (tb) to the raised portions s2, t2 of the front and rear rail support members S, T Parts s24 and t24 are provided. The slide operation parts s24 and t24 are provided below the rising parts s2 and t2. The slide operation parts s24 and t24 have a substantially U-shape or a C-shape in which a finger insertion space in which the user's finger can be hung in a side view is formed. For example, the user can lock the front and rear rail support members S and T because the user can pull the front and rear rail support members S and T by hooking the finger on the slide operation parts s24 and t24. It can be easily operated from the position (sa), (ta) to the retracted position (sb), (tb).

  Note that front and rear rail support members S and T having another form as shown in FIGS. 24 and 25 may be applied.

  That is, the front and rear rail support members S and T according to the other embodiment raise the rising portions s2 and t2 substantially perpendicularly from the tip end portions of the base portions s1 and t1. And it is possible to selectively slide the lockable position (sa), (ta) and the retracted position (sb), (tb) to the raised portions s2, t2 of the front and rear rail support members S, T. The slide operating portions s24 and t24 are projected outward from the substantially vertically erected portions s25 and t25. In other words, the front and rear rail support members S and T according to another embodiment are substantially U-shaped or substantially U-shaped in which the slide operation portions s24 and t24 form a finger insertion space where the user's finger can be hung in side view They are not C-shaped, and are provided on the side surfaces of the outwardly projecting portions s26 and t26.

  Since the front and rear rail support members S and T which are other embodiments have such a configuration, they receive a strong force from the engaging portions 64 and 84 of the front rail receiving member Q and the rear rail receiving member R. Even in this case, it becomes difficult to move in the direction in which the locking portions s21 and t21 are disengaged.

<< Slider J >>
The slider J supports the rotary blade z1 for cutting the sheet P. The slider J holds the rotary blade z1 capable of cutting the sheet P at a position outside the right side edge which is one side edge of the rail C. The slider J is supported slidably relative to the rail C.

  The slider J includes a slider base U slidably mounted on the rail C, an operation handle V provided on the slider base U, and an open / close body W supported openably and closably with respect to the slider base U. And a blade unit Z supported by the opening / closing body W.

  The slider J supports the blade unit Z, which holds the rotary blade z1 with respect to the slider main body, so as to be relatively movable in the vertical direction. The slider body mainly includes a slider base U, an operation handle V, and an opening / closing body w1 constituting the opening / closing body W. The blade holder w3 capable of holding the blade unit Z is supported relative to the slider body in the vertical direction.

<Slider base U>
The slider base U includes a slider base body u1 in which an engagement recess u11 engaging with the rail C is formed, and an opening / closing member support portion u2 provided at the right side edge which is the outer edge of the slider base body u1. . A positioning convex portion u12 for positioning the slider J is provided so as to project downward at the middle portion in the left-right direction of the engagement concave portion u11.

  The slider base body u1 includes an interference avoiding recess u13 that can avoid interference with the rotary blade z1 of the blade unit Z supported by the opening / closing body W when the opening / closing body W is opened or closed. An operating handle V is attached to the upper edge of the slider base body u1 via a screw (not shown).

  The opening / closing body support portion u2 includes the front and rear extending walls u21 protruding from the slider base body u1 and the support shafts u22 protruding from the opposing surfaces of the extending walls u21. The support shaft u <b> 22 is supported by a bearing hole w <b> 14 which is a shaft support portion provided on the opening / closing body W.

<Operation handle V>
The operation handle V is mounted on the slider base U by a screw (not shown). The upper surface side of the operation handle V is formed in a curved shape that is easy for the user to grip. The operation handle V is provided with a notch v1 at a side portion on the opening / closing body W side for avoiding interference with the opening / closing body W. The projection w21 of the lock member w2 can be engaged with the end edge of the notch v1.

<Opening body W>
The opening / closing body W is rotatably supported with respect to the slider base U. That is, the opening / closing body W is supported by the slider base U in an openable / closable manner. The opening / closing body W can form a space in which the blade unit Z having the rotary blade z1 can be replaced in a state of being opened with respect to the slider base U.

  The opening / closing body W has an opening / closing body main body w1 axially supported rotatably relative to the slider base U, and a protrusion w21 rotatably mounted relative to the opening / closing body main body w1 and capable of engaging with the operation handle V Lock member w2, a blade holder w3 supported so as to be vertically movable with respect to the opening / closing body main body w1 and capable of holding the blade unit Z, and a blade holder w3 provided between the opening / closing body main body w1 and the blade holder w3 It has a pair of blade holder springs w4 as biasing members for the blade holder biased in the B direction.

  The opening / closing body w1 includes a side wall w11 rotatably supporting the lock member w2, a front wall w12 projecting inward from a front edge of the side wall w11, and a back edge of the side wall w11 inward And a rear wall w13 provided in a projecting manner. The side wall w11, the front wall w12, and the rear wall w13 form a storage space in which the blade holder w3 can be moved up and down.

  The lock member w2 is rotatably supported relative to the opening / closing body main body w1. The lock member w2 is provided with a protrusion w21 which is provided on the outer peripheral edge and which can be engaged with the end edge of the notch v1 in the operation handle V, and an operation protrusion w22 which is provided on the outer surface side and can be gripped by the user. The lock member w2 can lock the opening / closing body main body w1 in the closed position in a state where the projection w21 is engaged with the operation handle V.

  The blade holder w3 is supported so as to be vertically movable with respect to the opening / closing body main body w1, and can hold a blade unit Z having a rotary blade z1. The blade holder w3 can be opened and closed with respect to the slider base U together with the opening / closing body main body w1. The blade holder w3 is biased in the direction of the upward surface k1 of the blade holder b1 by a blade holder spring w4 which is a biasing member for the blade holder.

  The blade holder w3 has a blade holder main body w31 having a shape capable of holding the blade unit Z, and a blade rotatably supported with respect to the blade holder main body w31 and capable of moving up and down in conjunction with the blade holder main body w31. The relative position of the blade holder body w31 to the opening / closing body w1 attached to the shaft pin w33, the pressing bearing w34 for holding the base end of the blade shaft pin w33, and the blade holder body w31 can be regulated and the blade holder body w31 Is provided with a retaining pin w35 which prohibits the lid body w1 from coming out downward.

  The blade holder main body w31 is provided with a recessed portion w36 with which a positioning protrusion z22 provided on the blade holding member z2 of the blade unit Z is engaged. The blade holder main body w31 is vertically movably supported relative to the opening / closing body main body w1.

  The blade shaft pin w33 is fitted in the through hole z11 provided in the rotary blade z1 of the blade unit Z, and can be rotated integrally with the rotary blade z1 when the sheet P is cut.

  The retaining pin w35 is attached to the blade holder main body w31 and protrudes toward the opening / closing body main body w1. The protruding portion of the retaining pin w35 is located in a vertically extending elongated hole w15 formed in the opening / closing body main body w1, and the vertical movement range of the blade holder main body w31 by cooperation with the elongated hole w15. Can be regulated. In addition, since the blade holder main body w31 is biased downward by the blade holder spring w4, which is a biasing member for the rotary blade z1, the retaining pin w35 abuts on the lower edge of the elongated hole w15 in no load state. It will be maintained.

<Blade unit Z>
The blade unit Z is detachably attached to the blade holder w3 of the opening / closing body W. The blade unit Z includes a rotary blade z1 whose outer peripheral edge is a cutting edge z12, and a blade holding member z2 that holds the rotary blade z1. The blade unit Z can be replaced with another blade unit Z, for example, when the cutting edge z12 of the rotary blade z1 is deteriorated due to use or the like.

  The rotary blade z1 has a through hole z11 formed at its center. The through hole z11 can be fitted to the blade shaft pin w33 provided in the blade holder w3 of the opening / closing body W.

  The blade holding member z2 is made of synthetic resin, and has a rectangular shape in which a portion other than the lower end portion of the rotary blade z1 is accommodated. The blade holding member z2 is provided with a communication hole z21 at a position corresponding to the through hole z11 of the rotary blade z1. Further, on the blade holding member z2, a plurality of protruding portions z22 for positioning in the blade holder w3 are provided to project outward.

  Subsequently, the operation of the cutting machine A in this embodiment will be described.

  First, the sheet P to be cut is placed at a predetermined position on the upper surface k1 of the base body K. Generally, by bringing the front edge or the rear edge of the sheet P to be cut into contact with the rear end edge of the front base portion L or the front end edge of the rear base portion M, the sheet P on the base body K It will be positioned.

  Next, an operation for cutting the sheet P is performed by the rotary blade z1 supported by the slider J. When the number of sheets P to be cut is relatively large, it is usually necessary to reciprocate the slider J a plurality of times with respect to the rail C to cut a plurality of sheets P in order from the top. In this case, it is necessary to hold the sheet P from above so as not to shift on the base body K before cutting. After placing the sheet P on the base main body K, the user presses the rail C downward so as to press the sheet P from above, and presses the sheet P onto the sheet presser F supported by the rail C from above Do the operation to An operation for the user to lower the rail C to the lower position (a) is performed by pressing the rail C downward against the biasing force of the front spring D and the rear spring E.

  In the process of making the rail C transition from the upper position (b) to the lower position (a), the pressing inclined surfaces 63, 83 provided on the front rail receiving member Q and the rear rail receiving member R The pressed inclined surfaces s22 and t22 provided on the rear rail support member T are pressed. The front rail receiving member Q and the rear rail receiving member R temporarily elastically deform upward the raised portions s2, t2 of the upper portions of the front rail support member S and the rear rail support member T. Thereby, the front rail receiving member Q and the rear rail receiving member R integrally attached to the rail body N can move to the lower position (a). The engaging portions 64 and 84 of the front rail receiving member Q and the rear rail receiving member R moved to the lower position (a) are temporarily elastically deformed outward and then return to their original postures. And engaging portions s21 and t21 provided on the rear rail support members T. As a result, the rail C is prohibited from moving upward by the front rail support member S and the rear rail support member T, and is held at the lower position (a).

  The paper presser F is supported so as to move up and down relative to the rail C. Then, when the rail C is at the lower position (a), the paper presser F is pressed against the paper P disposed on the base B and resists against the biasing force of the paper presser spring G and is relative to the rail body N direction. It is supposed to move.

  As a result of the rail C being held at the lower position (a), after the paper presser F is in a state of holding the paper P, the user reciprocates the slider J in the front-rear direction to raise the plurality of paper P It will be cut in order from. At this time, the twisting deformation acting on the rail C is suppressed by the action of the reaction force canceling means 9. That is, even when the rotary blade z1 of the slider J receives a reaction force from the sheet P, the projection 53, 73 provided on the front rail receiving member Q and the rear rail receiving member R is provided on the base B. By abutting on 35, the reaction force acting on the rail C is canceled.

  When releasing the state in which the rail C is locked at the lower position (a), the user operates the release operation parts s23 and t23 of the front and rear rail support members S and T to perform the front and rear The raised portions s2 and t2 of the rail support members S and T are temporarily elastically deformed outward. Thereby, the engaging portions 64 and 84 of the front rail receiving member Q and the rear rail receiving member R are disengaged from the locking portions s21 and t21 provided on the front rail supporting member S and the rear rail supporting member T, respectively. C receives the biasing force of the front spring D and the rear spring E and returns to the upper position (b).

  When the number of sheets P to be cut is relatively small, the sheet P may be cut without the need for reciprocating the slider J multiple times with respect to the rail C. In other words, there is a case where there is no need to lower the rail C in advance and hold the sheet P on the base main body K before gripping the slider J. In such a case, the user places his hand on the slide operation parts s24 and t24 of the front and rear rail support members S and T, and locks the front and rear rail support members S and T in advance (sa), The position is changed from (ta) to the retracted position (sb), (tb). The front and rear rail support members S and T at the retracted position (sb) and (tb) are engaged with the front rail receiving member Q and the rear rail receiving member R even when they are shifted to the lower position (a) It will be in the state which can not be engaged with the joint parts 64 and 84. By doing this, when the number of sheets P to be cut is relatively small, the rail C is shifted to the lower position (a) along with the operation of the slider J, and the rail C is at the lower position (a) The rail C can be automatically returned to the upper position (b) by stopping the operation of the slider J by the user.

  As described above, the cutting machine A according to the present embodiment includes the base B having the upward surface k1 on which the sheet P is disposed, the lower position (a) close to the base B, and the lower position A rail C movably supported between an upper position (b) farther than (a) and a paper presser F supported by the rail C and capable of pressing the paper P to be cut at least at the lower position (a); A rotary blade z1 capable of cutting the sheet P is provided at a position outside the one side edge of the rail C and provided with a slider J slidably supported relative to the rail C. And this cutting machine A is provided on the other side edge side of the rail C with a reaction force canceling means 9 which can cancel the reaction force which the rotary blade z1 receives from the sheet P at the time of the cutting operation.

  For this reason, it becomes possible to provide the cutting machine A excellent in the degree of freedom of design for forming the rail C supporting the slider J. That is, since the reaction force canceling means 9 is provided on the other side edge side of the rail C, the reaction force acting on the slider J on the one side edge side of the rail C can be suitably canceled via the rail C. . Therefore, the rail C does not absorb the reaction force acting on the slider J in the end but the reaction force canceling means 9 absorbs it, so defects such as distortion of the rail C are suitably suppressed. It has become. In the case of the cutting machine A provided with the reaction force canceling means 9, as a result of the distortion of the rail C, the occurrence of the problem that the sheet P can not be cut straight can be suppressed.

  A rail body N linearly extends in the front-rear direction, a front rail receiving member Q attached to the front end of the rail body N, and a rear rail receiving member R attached to the rear end of the rail body N And have. And, the reaction force canceling means 9 is directly provided with the projecting portions 53, 73 integrally provided on the front rail receiving member Q and the rear rail receiving member R, and the projecting portions 53, 73 at the lower position (a). The base B is provided with receiving recesses 15 and 35 which are contact portions provided on the base B which can be in contact. Therefore, since the reaction force transmitted from the slider J and acting on the rail C is transmitted to the base B stably mounted on the mounting surface, the reaction force can be suitably absorbed. There is.

  The rail C is biased in the direction of the upper position (a) by a front spring D which is a biasing member disposed between the front rail receiving member Q and the base B, and the rear rail receiving member R and the base B The rail C is biased in the direction of the upper position (a) by a spring E, which is a biasing member disposed between them. Therefore, the user who operates the slider J presses the slider J downward against the urging force of the rail C, and accordingly receives the reaction force from the sheet P corresponding to this. On the premise of such a configuration, the reaction force canceling means 9 can suitably operate.

  The base B includes a base body K having an upward surface k1, a front base portion L provided at the front end of the base body K, and a rear base portion M provided at the rear end of the base body K. It is equipped. The projecting portion 53 of the front rail receiving member Q can abut against the front base portion L, and the projecting portion 73 of the rear rail receiving member R can abut against the rear base portion M. Therefore, the reaction force transmitted from the slider J and acting on the front rail receiving member Q and the rear rail receiving member R of the rail C is the front base portion L and rear base portion of the base B stably mounted on the mounting surface As it is transmitted to M, the reaction force can be suitably absorbed without interfering with the upward surface k1 on which the sheet P is placed.

  The paper presser F is supported so as to be relatively movable in the vertical direction with respect to the rail C, and the upper surface of the paper presser F is a paper press spring G serving as a paper press biasing member interposed between the paper presser and the rail C. It is biased in the direction. For this reason, the sheet P can be appropriately pressed according to the number of sheets P to be cut. Moreover, only one of the front rail lock mechanism H and the rear rail lock mechanism I operates in the locked state, or any of the front rail lock mechanism H and the rear rail lock mechanism I accompanying the slide operation. Even when the rail C is inclined relative to the upper surface k1 of the base B when operating in the locked state in order from one side or the other, the paper presser F appropriately sets the paper P to the base B properly. It is something that can be held against.

  The slider J supports the rotary blade z1 so as to be relatively movable in the vertical direction with respect to the slider base U, the opening / closing body main body w1, etc. constituting the slider main body, and the rotary blade z1 is attached to the rotary blade. It is biased in the direction of the upper surface k1 by the blade holder spring w4, which is a biasing member. Therefore, the user who operates the slider J presses the slider J downward against the biasing force of the blade holder spring G, and accordingly receives the reaction force from the sheet P corresponding to this. On the premise of such a configuration, the reaction force canceling means 9 can suitably operate.

  A slider base U having an engaging recess u11 that engages with the rail C and slidably mounted on the rail C, an operation handle V mounted on the slider base U, and a slider base U And an opening / closing body main body w1 constituting the opening / closing body W supported so as to be openable / closable. The opening / closing body W is provided with an opening / closing body main body w1 axially supported by the slider base U, and a blade holder w3 supported so as to be vertically movable with respect to the opening / closing body main body w1 and capable of holding the rotary blade z1. It is The blade holder w3 is biased in the direction of the upper surface k1 by a blade holder spring w4, which is a biasing member for the rotary blade z1. Therefore, the user who operates the slider J presses the slider J downward against the biasing force of the blade holder spring G that biases the blade holder w3 that can hold the rotary blade z1. The reaction force from the corresponding paper P is received. On the premise of such a configuration, the reaction force canceling means 9 can suitably operate.

  The present invention is not limited to the embodiments detailed above.

  The size of the cutting machine can be variously adopted according to the setting of the number of sheets which can be cut.

  The specific configuration of the reaction force canceling means can be variously adopted, and is not limited to the one shown in the embodiment described above. For example, it may be configured such that a projecting portion provided to project from the rail can be brought into contact with the base body.

  In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.

A: Cutting machine B: Base C: Rail F: Paper press J: Slider P: Paper (a): Lower position (b): Upper position 9: Reaction force canceling means

Claims (6)

A base having an upper surface on which the sheet is disposed, a rail movably supported between a lower position close to the base and an upper position spaced apart from the lower position, and the rail A paper press which can hold the paper to be cut at least at the lower position, and holds a rotary blade which can cut the paper at a position outside one side edge of the rail and slides relative to the rail A cutter comprising a slider supported on the support,
A cutting machine provided with a reaction force canceling means which can cancel the reaction force received from the sheet when the rotary blade is in a cutting operation on the opposite side of the rotary blade with the rail interposed therebetween. The rail includes a rail body extending linearly in the front-rear direction, a front rail receiving member attached to a front end of the rail body, and a rear rail receiving member attached to a rear end of the rail body Become
An abutment provided on the base where the reaction force canceling means can be in direct contact with the projecting portion integrally provided on the front rail receiving member and the rear rail receiving member at the lower position. The cutter according to claim 1, comprising a part. The rail is biased toward the upper position by a biasing member disposed between the front rail receiving member and the base, and is disposed between the rear rail receiving member and the base 3. The cutter according to claim 2, wherein the rail is biased toward the upper position by a biasing member. The cutting machine according to claim 2 or 3, wherein the protrusion can abut on a portion of the base other than the sheet arrangement range. The paper presser is supported so as to be relatively movable in the vertical direction with respect to the rail, and is urged in the direction of the upper surface by a paper presser biasing member interposed between the paper and the rail. A cutter according to claim 1, 2, 3 or 4. The slider supports the rotary blade so as to be movable relative to the slider body in the vertical direction,
The cutter according to claim 1, 2, 3, 4 or 5, wherein the rotary blade is biased in the direction of the upper surface by a biasing member for the rotary blade.