JP7371319B2 - cutting machine - Google Patents

Description

The present invention relates to a cutting machine for cutting sheet bodies such as paper.

Conventionally, a rail has been provided that can take an upper position and a lower position closer to the base than the upper position, and a slider holding a rotary blade is moved forward and backward with respect to the rail that is locked in the lower position ( A cutting machine is known that is configured to cut paper placed on a base by cooperating with a rotary blade and a base by performing forward and backward movements (see, for example, Patent Document 1). ).

The cutting machine described in Patent Document 1 requires an operation of pressing both one end and the other end of the rail in the upper position toward the lower position simultaneously or sequentially in order to lock the rail in the lower position. was. Therefore, in such a cutting machine, the operation for locking the rail in the lower position feels troublesome to the user.

JP2019-098446A

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a cutting machine having at least a configuration that allows the rail to be suitably locked in a lower position than an upper position.

That is, the present invention has the following configuration.

The invention according to claim 1 includes: a base having a mounting surface on which a sheet body to be cut is placed; a lower limit position closest to the base; and an upper position distant from the lower limit position. a rail that is supported to move up and down in a substantially parallel attitude with respect to the placement surface between the rails and is biased upwardly by a biasing means; and a rail that is supported to be slidable relative to the rail and cuts the sheet body. a slider provided with a rotary blade that can be moved, and a slider that is provided between the base and the rail and that can lock the rail so that it does not move at least in the direction of the upper position at a lock position that is set below the upper position. A cutting machine comprising a rail lock mechanism, wherein the rail lock mechanism is capable of automatically locking the rail lowered from the upper position at the lock position , the rail lock mechanism comprising: A locking member provided on the base and movable relative to the base; and an engagement member integrally provided on the rail with which the locking member can engage in the locking position. The locking member can take a locking position in which upward movement of the rail is prohibited by engaging with the engaging member, and a non-locking position in which the locking member is retracted from the engaging member rather than the locked position. and the rail is biased in the direction of the locked position by a biasing means, and the rail is locked in the locked position by operating the locking member in the locked position in the direction of the unlocked position. The locking member is rotatably supported with respect to the base, and the locking member is rotatably supported with respect to the base. This cutting machine consists of a rotating member supported by a rotating member .
The invention according to claim 2 includes a base having a mounting surface on which a sheet body to be cut is placed, a lower limit position closest to the base, and an upper position distant from the lower limit position. a rail that is supported to move up and down in a substantially parallel attitude with respect to the placement surface between the rails and is biased upwardly by a biasing means; and a rail that is supported to be slidable relative to the rail and cuts the sheet body. a slider provided with a rotary blade that can be moved, and a slider that is provided between the base and the rail and that can lock the rail so that it does not move at least in the direction of the upper position at a lock position that is set below the upper position. A cutting machine comprising a rail lock mechanism, wherein the rail lock mechanism is capable of automatically locking the rail lowered from the upper position at the lock position, the rail lock mechanism comprising: A locking member provided on the base and movable relative to the base; and an engagement member integrally provided on the rail with which the locking member can engage in the locking position. The locking member can take a locking position in which upward movement of the rail is prohibited by engaging with the engaging member, and a non-locking position in which the locking member is retracted from the engaging member rather than the locked position. and is urged in the direction of the locking posture by a biasing means, and is interlocked with the locking member, and has a display mode when the rail is in the upper position and a display mode when it is in the lock position. This is a cutting machine equipped with a display means for differentiating the
The invention according to claim 3 includes a base having a mounting surface on which a sheet body to be cut is placed, a lower limit position closest to the base, and an upper position distant from the lower limit position. a rail that is supported to move up and down in a substantially parallel attitude with respect to the placement surface between the rails and is biased upwardly by a biasing means; and a rail that is supported to be slidable relative to the rail and cuts the sheet body. a slider provided with a rotary blade that can be moved, and a slider that is provided between the base and the rail and that can lock the rail so that it does not move at least in the direction of the upper position at a lock position that is set below the upper position. A cutting machine comprising a rail lock mechanism, wherein the rail lock mechanism is capable of automatically locking the rail lowered from the upper position at the lock position, the rail lock mechanism comprising: A locking member provided on the base and movable relative to the base; and an engagement member integrally provided on the rail with which the locking member can engage in the locking position. The locking member can take a locking position in which upward movement of the rail is prohibited by engaging with the engaging member, and a non-locking position in which the locking member is retracted from the engaging member rather than the locked position. and is biased in the direction of the locking position by a biasing means, the engaging member has a window hole into which one end of the locking member can be inserted, and the locking position is in the locking position. This is a cutting machine in which the one end portion is inserted into a window hole.

The invention according to claim 4 is the cutting machine according to claim 1 , 2, or 3, wherein the lock position is set above the lower limit position.

The invention according to claim 5 is provided with a paper presser that can press the sheet body from above, and the rail can press the sheet body from above via the paper presser in the lock position. The cutting machine according to item 1, 2 , 3 or 4 .

The invention according to claim 6 is characterized in that the locking member is rotatably supported with respect to the base, and the display means is constituted by a rotating member rotatably supported with respect to the base. 3. The cutting machine according to claim 2 , wherein:

In the invention according to claim 7 , the rotating member includes a first wall portion having a first display portion, and a second wall portion provided at a position adjacent to the first wall portion and having a second display portion. It is equipped with
When the rail is in the upper position, the first display part is hidden by the base part, and when the rail is in the lock position, the first display part is hidden by the base part. 7. The cutting machine according to claim 1 , wherein the cutting machine is in a position that does not hide the cutting machine.

According to an eighth aspect of the invention, the base includes a base main body having the mounting surface, a front base part provided at the front end of the base main body, and a rear base part provided at the rear end of the base main body. 8. The cutting machine according to claim 1, further comprising a base portion, and wherein the rail lock mechanism is provided between the front base portion and the rail.

The invention according to claim 9 is the cutting machine according to claim 3 , wherein the internal dimension of the window hole in the vertical direction is set larger than the vertical dimension of the one end portion.

As explained above, according to the present invention, it is possible to provide a cutting machine having at least a configuration that allows the rail to be suitably locked in a lower position than an upper position.

FIG. 1 is a perspective view showing an embodiment of the present invention. The right side view in the same embodiment. The right side view in the same embodiment. The right side view in the same embodiment. FIG. 3 is an exploded perspective view of the same embodiment. The perspective view in the same embodiment. The perspective view in the same embodiment. FIG. 3 is a plan view of the same embodiment. The front view in the same embodiment. FIG. 3 is a partially enlarged bottom view of the same embodiment. FIG. 3 is a partially enlarged bottom view of the same embodiment. FIG. 3 is a partially enlarged perspective view of the same embodiment as seen diagonally from below. FIG. 3 is a partially enlarged perspective view of the same embodiment as seen diagonally from below. FIG. 3 is a partially enlarged perspective view of the same embodiment as seen diagonally from below. FIG. 3 is a perspective view of main parts of the rail lock mechanism in the same embodiment. FIG. 3 is a perspective view of main parts of the rail lock mechanism in the same embodiment. XX cross-sectional view in FIG. 9<a>. A sectional view taken along the YY line in FIG. 9<b>. FIG. 18 is a sectional view corresponding to FIGS. 17 and 18 showing a state in which the rail is at the lower limit position. FIG. 3 is an explanatory diagram of main parts of the rail lock mechanism in the same embodiment.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 20.

In addition, in FIGS. 1, 2, 5, 6<a>, 7<a>, 8<a>, 9<a>, 10, 12, 15, and 17, the rail B is in the upper position (L) Shows the condition. Figures 3, 6<b>, 7<b>, 8<b>, 9<b>, 11, 13, 16, and 18 show the rail B in the locked position (K). There is. 4, 14, 19, and 20 show the rail B in the lower limit position (J). The paper P is clearly indicated using imaginary lines only in FIG. 1, but is omitted in other figures. Further, for convenience of making the drawing easier to see, the paper holder D is colored.

The cutting machine includes a base A having a mounting surface m on which a sheet of paper P to be cut is placed, and a blade rest h provided at approximately the same height as the mounting surface m. and the lower limit position (J) that is closest to the base A and the upper position (L) that is furthest above the lower limit position (J) in the vertical direction approximately parallel to the mounting surface m. The rail B is movably supported and biased upward by a spring s1 serving as a biasing means, and the paper P is supported in a manner that the rail B is movably supported relative to the rail B and is lowered from the upper position (L). It is equipped with a paper presser D that can be pressed from above in the direction of the base A, and a slider E that is supported so as to be slidable relative to the rail B and is provided with a rotary blade KH that can cut the paper P.

The cutting machine is provided with a rail lock mechanism F between a base A and a rail B. The rail lock mechanism can automatically lock the rail B at a lock position (K) set below the upper position (L) so that it does not move toward the upper position (L). That is, the rail lock mechanism F has a configuration that can automatically lock the rail B lowered from the upper position (L) at the lock position (K) by the operation of pressing down the rail B performed by the user. There is. In this embodiment, the lock position (K) of the rail B is set below the upper position (L) of the rail B and above the lower limit position (J).

Furthermore, the cutting machine is provided with a lock release means G that can release the state in which the rail B is locked at the lock position (K) with one touch at a position different from the rail B in association with the rail lock mechanism F.

In addition, in relation to the rail lock mechanism F, the cutting machine also displays the display mode of the member supported by the base A when the rail B is in the upper position (L) and the lock position (K ) to make it easier for the user to distinguish whether the rail B is in the upper position (L) or in the lock position (K) by making the display mode of the member supported by the base A different from that in It is equipped with display means H.

The cutting machine advances and retreats (i.e., presses downwardly the slider E supported by the rail B, which is automatically locked from the lock position (K) by the rail lock mechanism F so that it does not move toward the upper position (L)). , forward movement, and backward movement), one or more sheets of paper P placed on the placement surface m of the base A is cut by the cooperation of the rotary blade KH provided on the slider E and the base A. It is possible.

More specifically, when the user performs an operation to push down any part of rail B, rail B moves from the upper position (L) to the lock position (K), and at the lock position (K), the rail B moves upward. is automatically regulated. By this operation, the paper P to be cut is pressed in the direction of the base A by the paper presser D supported so as to be movable forward and backward relative to the rail B. Thereafter, the paper P is moved between the rotary blade KH of the slider E supported by the rail B that can move up and down approximately parallel between the lock position (K) and the lower limit position (J) and the blade receiver h provided on the base A. It is cut through the cooperation of The pressing force of the rotary blade KH against the paper P during cutting is adjusted by the user who can manipulate the vertical position of the rail B via the slider E.

The configuration of the cutting machine will be described in detail below.

<<Base A>>
The base A includes a base main body 1 having an upward placing surface m on which paper P is placed, a blade receiver h disposed directly below a rotary blade KH, and a rail B provided at the front end of the base main body 1. It is provided with a front base part 2 that can support the rail B in a vertically movable manner, and a rear base part 3 that is provided at the rear end of the base body 1 and can support the rail B in a vertically movable manner.

<Base body 1>
The base body 1 is provided with a groove (not shown) directly below the rotary blade KH of the slider E. A synthetic resin blade holder h is arranged in the groove of the base body 1 so that its upper surface is substantially flush with the mounting surface m.

<Front base part 2>
The front base part 2 includes a front base main body 2a and a bottom cover 2b detachably attached below the front base main body 2a.

The front base body 2a includes an upper wall 21, a front wall 22 extending downward from the front edge of the upper wall 21, a rear wall 23 extending downward from the rear edge of the upper wall 21, and an upper wall 22 extending downward from the front edge of the upper wall 21. It includes a side wall 24 extending downward from the left and right side edges of the wall 21.

The front base main body 2a is provided with a recessed portion a that is recessed downward at a position corresponding to the bottom of the rail B. The recessed portion a positions the previous rail receiving member 5 constituting the rail B in the front-rear direction and the left-right direction, and allows the previous rail receiving member 5 to move in the vertical direction. The recessed portion a is configured to accommodate the lower portion of the front rail receiving member 5.

The recessed portion a includes a bottom wall 25 that is disposed below the top wall 21 and has a horizontal position, and a peripheral wall 26 that extends upward from the peripheral edge of the bottom wall 25 and surrounds the lower part of the rail receiving member 5 before. It is equipped with

The bottom wall 25 includes a spring support part a1 that can support the lower end of the spring s1 that biases the rail B upward, and a link support that pivotally supports the lower end of a pair of left and right posture maintaining links C provided on the rail B. It is equipped with a part a2.

<Rear base part 3>
Since the rear base portion 3 has substantially the same configuration as the front base portion 2, the same reference numerals as those used for the front base portion 2 are given in the drawings, and detailed explanation thereof will be omitted. Note that the rear base portion 3 is provided with a rotary blade storage chamber I that is not provided in the front base portion 2 and can accommodate a spare rotary blade (not shown) used in the slider E.

<<Rail B>>
The rail B is capable of supporting the slider E so as to be slidable in the front-back direction. The rail B is supported so as to be movable up and down substantially parallel to the mounting surface m of the base A between an upper position (L) and a lower limit position (J) with respect to the base A.

That is, the rail B has an upper position (L) where a plurality of sheets of paper P can be placed on the placement surface m, and a position where the plurality of sheets of paper P placed on the placement surface m can be placed via the paper holder D. It is configured to be movable in parallel in the vertical direction between a lower limit position (J) at which the paper P can be cut by the rotary blade KH of the slider E while being indirectly pressed by the slider E.

When the rail B is in the upper position (L), the paper P to be cut is inserted between the lower surface of the paper holder D, which is supported so as to be movable up and down with respect to the rail B, and the mounting surface m of the base A. A gap sk for paper insertion can be formed.

Rail B is locked in the lock position (K) set above the lower limit position (J) by the rail lock mechanism F provided between it and the base A, and is moved in the direction of the lower limit position (J) by the user's pressing operation. It is locked to prevent movement toward the upper position (L) while allowing movement to the upper position (L).

The rail B includes a substantially rectangular cylindrical rail body 4 having a hollow structure and extending linearly in the front-rear direction, and front and rear rail receiving members 5 and 6 attached to the front and rear ends of the rail body 4. We are prepared. The rail main body 4 and the front and rear rail receiving members 5 and 6 are capable of integrally moving in the vertical direction.

The rail B is always biased toward the upper position (L) by a spring s1 disposed between the rail B and the base A. That is, the rail B is biased upward by the spring s1 interposed between the front rail receiving member 5 that constitutes the rail B and the front base portion 2 that constitutes the base A, and It is urged upward by a spring s1 interposed between the rear rail receiving member 6 and the rear base part 3 of the base A.

<Rail body 4>
The rail main body 4 includes a channel-shaped metal lower rail member 4a integrally having a bottom wall portion 41 and side wall portions 42 erected from both side edges of the bottom wall portion 41, a top wall portion 43, and a metal lower rail member 4a. It is provided with an upper rail member 4b made of synthetic resin and having a channel shape and integrally having hanging wall portions 44 extending downward from both side edges of the ceiling wall portion 43.

The hanging wall portion 44 of the upper rail member 4b is located outside the side wall portion 42 of the lower rail member 4a. That is, the lower rail member 4a is covered from the outside by the upper rail member 4b. The upper rail member 4b, the lower rail member 4a, and the front and rear rail receiving members 5 and 6 are fastened together with screws v1.

An insertion hole b1 is formed in the bottom wall portion 41 of the lower rail member 4a, through which a boss portion d1 provided upright on the paper holder D can be inserted vertically.

A guide groove b2 for positioning the slider E is provided on the top surface side of the top wall portion 43 of the upper rail member 4b. A positioning convex portion (not shown) protruding from the slider E can be engaged with the guide groove b2.

The top wall portion 43 of the upper rail member 4b is formed with a downward boss portion b3 whose lower end portion is located within the insertion hole b1 of the lower rail member 4a. The downward boss portion b3 is inserted into the through hole d2 of the upward boss portion d1 protruding from the paper holder D. A screw v2, which serves as a member to prevent the paper holder D from coming off, is attached to the tip of the downward boss b3.

Between the rail B and the paper holder D, that is, between the inner surface of the top wall portion 43 of the upper rail member 4b and the boss portion d1 of the paper holder D, there is a paper holding spring s2 which is a biasing member for holding the paper. It is arranged.

<Front rail receiving member 5>
The front rail receiving member 5 is attached to the bottom wall portion 41 of the lower rail member 4a constituting the rail body 4 with screws v3. The front rail receiving member 5 is made of synthetic resin.

The front rail receiving member 5 includes a front rail receiving member main body 5a, which has a box shape opening downward, and has a rail connecting wall 51 on the upper surface side to which the bottom wall 41 of the lower rail member 4a is screwed, and a front rail receiving member main body 5a. It is provided with a cover wall 5b that stands upright on the front end of the receiving member main body 5a and covers the front end of the rail main body 4.

The front rail receiving member main body 5a has a substantially rectangular rail connecting wall 51 which is in a horizontal position and whose upper surface is connected to the rail main body 4, and extends downward from the peripheral edge of the rail connecting wall 51 to the inside of the peripheral wall 26 at the base A. and an inner peripheral wall 52 located thereon.

The lower surface of the rail connection wall 51 is provided with a spring support part b4 that can support the upper end of the spring s1 that urges the rail B upward. The outer surface of the inner peripheral wall 52 is provided with a positioning groove b6 extending in the vertical direction and engaging with a positioning projection (not shown) formed on the peripheral wall 26 of the recessed portion a of the front base portion 2.

The cover wall 5b is erected from the front edge of the rail connection wall 51.

In this embodiment, the front rail receiving member 5 is integrally provided with an engaging member U that constitutes the rail locking mechanism F. The engagement member U is in a state where it is fitted to the previous rail receiving member 5, and its movement from the fitted state is regulated by the rail body 4 screwed to the previous rail receiving member 5. It is configured to be able to move up and down integrally with the previous rail receiving member 5.

<Rear rail receiving member 6>
The rear rail receiving member 6 is attached to the bottom wall portion 41 of the lower rail member 4a constituting the rail body 4 with screws v3. The rear rail receiving member 6 is made of synthetic resin.

The rear rail receiving member 6 includes a rear rail receiving member main body 6a, which has a box shape opening downward, and has a rail connecting wall 61 on the upper surface side to which the bottom wall 41 of the lower rail member 4a is screwed, and a rear rail receiving member main body 6a. It is provided with a cover wall 6b that stands upright at the rear end of the receiving member main body 6a and covers the rear end of the rail main body 4.

The rear rail receiving member main body 6a has a substantially rectangular rail connecting wall 61 which is in a horizontal position and whose upper surface is connected to the rail main body 4, and extends downward from the peripheral edge of the rail connecting wall 61 to the inside of the peripheral wall 26 at the base A. and an inner circumferential wall 62 located thereon.

The lower surface of the rail connection wall 61 is provided with a spring support part b7 that can support the upper end of the spring s1 that urges the rail B upward. The outer surface of the inner peripheral wall 62 is provided with a positioning groove b8 extending in the vertical direction and engaging with a positioning projection (not shown) formed on the peripheral wall 26 of the recessed portion a of the rear base portion 3.

The cover wall 6b is erected from the rear end edge of the rail connection wall 61.

<Pair of posture maintenance links C>
A pair of attitude holding links C maintains the attitude of the rail B, which can move up and down relative to the base A, in a substantially horizontal attitude. In other words, the rail B is maintained in a horizontal position by the pair of position holding links C arranged on the left and right, so that the rail B is approximately positioned between the upper position (L) and the lower limit position (J) with respect to the base A. It can move up and down in parallel.

The pair of posture maintaining links C includes a horizontal link element c1 disposed inside the rail body 4 and engaged with the rail body 4, an upper end portion of which is pivotally connected to the front end portion and a rear end portion of the horizontal link element c1, and a lower end portion of the horizontal link element c1 that is disposed inside the rail body 4 and engages with the rail body 4 The section is of a known configuration, comprising front and rear end link elements c2 pivotally supported by link supports a2 of each bottom wall 25 in the front base part 2 and the rear base part 3.

Note that the upper position (L) of the rail B in this embodiment is a position where the upward movement of the rail body 4 can be restricted by the horizontal link element c1 against the biasing force of the spring s1.

<<Paper presser D>>
The paper presser D is capable of holding down the paper P placed on the placement surface m from above. The paper holder D is supported so as to be movable forward and backward relative to the rail B. The paper holder D is mainly composed of a flat member that extends in the front-rear direction along the rail B and whose lower surface can be attached to the upper surface of the paper P. The paper holder D is supported so as to be movable up and down relative to the rail B.

The paper holder D is capable of holding down the paper P placed on the base A from above in the lock position (K). In this embodiment, the rail B is configured to be movable up and down between the lock position (K) and the lower limit position (J), and the paper holder D supported so as to be movable up and down with respect to the rail B is The sheet P to be cut can be held against the placement surface m between the lock position (K) and the lower limit position (J).

Paper holder D is supported by rail B. The paper presser D is biased downward, that is, in the direction of the base A, by a paper presser spring s2 disposed within the rail body 4.

<<Slider E>>
The slider E supports a replaceable rotary blade KH for cutting the paper P. The slider E holds a rotary blade KH capable of cutting the paper P at a position outside the right edge, which is one side edge of the rail B. The slider E is supported so as to be slidable relative to the rail B.

The slider E includes a slider body e1 that has an operating handle e11 on the upper side and is slidably mounted on the rail B, and a slider body e1 that holds a rotary blade KH and is supported so as to be movable up and down with respect to the slider body e1. The blade holder e2 is biased downward by a spring (not shown) using e1 as a foothold.

Thus, in the cutting machine of this embodiment, a rail lock mechanism F is provided between the base A and the rail B. Further, the cutting machine is provided with a lock release means G and a display means H in association with the rail lock mechanism F.

<<Rail lock mechanism F>>
The rail lock mechanism F includes a locking member T that is movable relative to the base A, and an engaging member U that is integrally provided on the rail B and that the locking member T can engage with at the locking position (K). It is mainly composed of.

The rail lock mechanism F has a locking position (M) in which the locking member T can inhibit the upward movement of the rail B by engaging with an engaging member U that can move up and down together with the rail B, and a locking position (M) in which the locking member T can inhibit the upward movement of the rail B. ), it is possible to take a non-locking position (N) in which it is retracted from the engaging member U and allowed to move to the upper position (L) of the rail B. The locking member T is biased toward the locking position (M) by a locking member biasing spring s3, which is a biasing means using the base A as a foothold.

The locking member T is longitudinal in the left-right direction, and its longitudinally intermediate portion is supported horizontally rotatably relative to the front base portion 2 via a shaft j1 fixed to the front base portion 2 and extending in the vertical direction. .

The locking member T has an L-shaped tip engaging portion t1, which is one end that is provided at the rotating end on the rail B side and is inserted into the window hole u2 of the engaging member U in the locking position (M), and the opposite side. It is provided with a rod-shaped rotating member engaging portion t2 which is the other end provided at an end portion of the rotary member V and engages with a rotating member V to be described later.

Furthermore, the locking member T had a shaft hole (not shown) that penetrated in the vertical direction so that the shaft j1 provided between the tip engaging portion t1 and the rotating member engaging portion t2, that is, at the intermediate portion in the longitudinal direction, was inserted therethrough. With a locking member wrapped around the shaft j1 using a shaft support part t3 and a protruding wall a4 protruding between the shaft support part t3 and the rotating member engaging part t2 and protruding from the bottom wall 25 of the recessed part a as a foothold. The pressed portion t4 is pressed by a force spring s3.

The engagement member U is attached to the front rail receiving member 5. The engaging member U is made of synthetic resin and extends in the vertical direction. The engagement member U includes a mounting portion u1 provided at the upper portion and attached to the previous rail receiving member 5 so as to be able to operate integrally with the previous rail receiving member 5, and one end portion of the locking member T provided at the lower portion. It is provided with a window hole u2 penetrating in the front-rear direction into which the distal end engaging portion t1 can be inserted.

The locking position (M) of the locking member T is a state in which the tip engaging part t1 is inserted into the window hole u2, and the non-locking position (N) of the locking member T is a state in which the tip engaging part t1 is inserted in the window hole u2. This is a state in which t1 is not inserted.

The mounting portion u1 is configured to fit into a groove b5, which is a fitting groove provided in the previous rail receiving member 5. The mounting portion u1 includes an internal fitting portion u11 that fits into a downwardly recessed groove b5 formed in the rail connection wall 51. When the internal fitting portion u11 of the engaging member U is inserted into the recessed groove b5 from the upper side and fitted into it, and then the lower rail member 4a is attached to the front rail receiving member 5 with the screw v3, the engaging member U cannot escape from the front rail receiving member 5.

The window hole u2 is provided so as to protrude downward from the front rail receiving member 5 when the rail B is in the lock position (K) and the lower limit position (J). That is, the window hole u2 passes through the through hole a3 formed in the bottom wall 25 of the recessed part a constituting the front base part 2, and the window hole u2 is inserted into the bottom wall 25 when the rail B is at the lock position (K) and the lower limit position (J). It is possible to protrude significantly below.

The vertical inner dimension w2 of the window hole u2 is set larger than the vertical dimension w1 of the tip engaging portion t1. That is, the tip engaging portion t1 inserted into the window hole u2 in the locking position (M) engages with the lower opening edge of the window hole u2, that is, the lower frame portion u21 in the locking position (K), and the locking member T is attached to the rail. While holding the lock position (K) of B, movement to the upper position (L) is prohibited against the biasing force of the spring s1.

On the other hand, when the rail B in the lock position (K) is pushed down in the direction of the lower limit position (J) by the user's operation on the slider E, the window hole u2 is lowered, and the window hole u2 and the tip engaging portion t1 are lowered. (The relative position changes so that the tip engaging portion t1 approaches the upper opening edge side of the window hole u2.), and the rail B can move to the lower limit position (J).

<<Lock release means G>>
The lock release means G releases the state locked in the lock position (K) on the rail B with one touch by operating the lock member T in the lock position (M) in the direction of the non-lock position (N). , the rail B can be returned to the upper position (L).

The lock release means G is constituted by a rotating member V rotatably supported by a pair of shaft support parts 212 protruding from the upper wall 21 of the front base part 2 constituting the base A. The rotating member V can take the first attitude (Q) when the rail B is in the upper position (L), and can take the first attitude (Q) when the rail B is in the lock position (K) and the lower limit position (J). , the second posture (R) can be adopted. The rotating member V is configured to be able to interlock with the locking member T.

The rotating member V includes a front wall portion v1 which is a first wall portion having a first display portion W1 facing forward, and a position adjacent to the front wall portion v1, that is, an upper end extending rearward from the upper end edge of the front wall portion v1. An upper wall portion v2, which is a second wall portion having a second display portion W2 facing toward The left and right side walls v3 have a shaft portion j2 supported by the shaft support portion 212, and the right side wall v3 extends downwardly from the right side wall v3 and engages with the rotating member engaging portion t2 of the locking member T at its tip end. an extending wall v4 having a downwardly U-shaped engaging portion v41 that can be moved upward; It is equipped with a flange v5.

When the rail B is in the upper position (L), the rotating member V assumes the first attitude (Q), and the second display portion W2 is substantially flush with the upper wall 21 of the front base portion 2. That is, in the rotating member V in the first attitude (Q), the front wall portion v1 having the first display portion W1 is hidden under the upper wall 21 of the front base portion 2.

When the rail B is in the lock position (K) and the lower limit position (J), the rotating member V assumes the second attitude (R) and is positioned above the upper wall 21 of the front base portion 2. ing. In other words, when the rail B is in the lock position (K) and the lower limit position (J), the rotating member V urged by the lock member T assumes the second attitude (R) and the first display portion W1 moves above the upper wall 21 of the front base part 2 and appears so as to be visible to the user, and is not hidden behind the front base part 2.

<<Display means H>>
The display means H is provided to help the user visually distinguish whether the rail B is in the upper position (L) or in the locked position (K). The display means H is interlocked with the locking member T, and has a display mode (first display mode) when the rail B is in the upper position (L) and a display mode (second display mode) when the rail B is in the lock position (K). aspect).

The display means H has a first posture (Q) in which the first display mode is adopted, and a second posture (R) in which the second display mode is adopted, which is the display mode when the rail B is in the lock position (K). It is constituted by a rotary member V that can be used.

The display means H is constituted by a rotating member V which constitutes the lock release means G. In other words, the display means H and the lock release means G are constituted by a rotating member V, which is a common member.

A detailed structural explanation of the rotating member V constituting the display means H has already been explained in the unlocking means G, and therefore will be omitted.

Next, an example of the operation of a cutting machine having a rail lock mechanism F, and a lock release means G and a display means H provided in association with the rail lock mechanism F will be schematically explained.

First, the user places the paper P to be cut on the placement surface m of the base A. At this time, the rail B is set at the upper position (L). A gap sk for inserting the paper P is formed between the paper holder D supported by the rail B and the mounting surface m of the base A.

When the rail B is in the upper position (L), the lock member T of the rail lock mechanism F is in the non-locking position (N). The tip engaging portion t1 of the locking member T is in a state in which the lower end portion (lower frame portion u21) of the window hole u2 in the engaging member U is pressed by the biasing force of the locking member biasing spring s3. The rotating member engaging portion t2 of the locking member T engages with the rotating member V, and only the second display portion W2 of the rotating member V is exposed upward through the opening 211 provided in the upper wall 21 of the front base portion 2. I'm letting you do it.

Subsequently, the rail B is moved from the upper position (L) to the lock position (K) by pushing down the rail B in the direction of the base A by the user's operation. Since the rail B is maintained in a substantially parallel posture with respect to the mounting surface m by a pair of posture holding links C, if an arbitrary point on the rail B is pressed downward, the rail B is held in a substantially parallel posture. It is possible to descend while maintaining the same position.

In the process of the rail B moving toward the lock position (K), the paper holder D supported by the rail B comes into contact with the paper P to be cut, and the paper P is moved against the base A by the biasing force of the paper holder spring s2. It becomes something to impose.

When the rail B descends, the engaging member U attached to the previous rail receiving member 5 also descends together. When the rail B descends to a certain extent, the distal end engaging portion t1 of the locking member T biased by the locking member biasing spring s3 is inserted into the window hole u2 provided in the engaging member U. At this stage, the rail B will be located at the lock position (K), and the lock member T will take the lock position (M).

When the tip engaging part t1 of the locking member T is inserted into the window hole u2 of the engaging member U, the window hole u2 in the engaging member U is biased upwardly by the spring s1 against the tip engaging part t1. The lower frame portion u21 of the rail B is engaged, and the rail B is held at the lock position (K) where movement to the upper position (L) is restricted.

In the process of the locking member T transitioning from the non-locked position (N) to the locked position (M), the rotating member V engaged with the rotating member engaging portion t2 of the locking member T receives the biasing force of the locking member T. and rotated from the first attitude (Q) to the second attitude (R). That is, as a result of the engagement portion v41 located below the shaft portion j2 supported by the base 2 being moved forward by the locking member T, the second portion of the rotating member V that was hidden in the upper wall 21 of the front base portion 2 is moved forward. One display portion W1 passes through the opening 211, moves to the upper side of the upper wall 21, and appears so as to be visible to the user.

For example, by displaying the words "Locked" on the first display portion W1 of the front wall v1, it is possible to clearly show the user that the rail B is in the locked position (K). is now possible.

After the paper P to be cut is fixed to the base A by positioning the rail B at the lock position (K), the user cuts the paper P by moving the slider E forward and backward while pushing down the slider E. become.

In this embodiment, the setting is such that the rotary blade KH of the slider E can take an appropriate position for cutting the paper P by positioning the rail B below the lock position (K) by the user's operation. has been done.

Since the vertical inner dimension w2 of the window hole u2 in the engaging member U constituting the rail lock mechanism F is set larger than the vertical dimension w1 of the tip engaging portion t1 in the locking member T, the rail B is in the locked position. It can move up and down between (K) and the lower limit position (J). This allows the user to cut the paper P while pushing down the rail B, which is in the lock position (K), toward the lower limit position (J) via the slider E.

Note that when the rail B is located at or near the lower limit position (J), the tip engaging portion t1 of the locking member T is located at the upper part of the window hole U2, and a gap sm is formed at the lower part of the window hole U2. It has become something that will be done.

After cutting the paper P, the user rotates the rotary member V, which is the lock release means G, from the second position (R) to the first position (Q), and returns to the lock position (K). An operation is performed to return a certain rail B to the upper position (L).

When the rotating member V is rotated in the first attitude (Q) direction by the user, the locking member T engaged with the rotating member V resists the biasing force of the locking member biasing spring s3 and assumes the non-locking attitude ( N) direction is forcibly rotated.

Then, when the tip engaging portion t1 of the locking member T comes out of the window hole u2, the rail B moves upward by the biasing force of the spring s1 and returns to the upper position (L). As a result, the paper P is no longer pressed by the paper holder D, and the user can easily remove a part of the paper P without being hindered by the paper holder D.

When the rail B returns from the locking position (K) to the upper position (L), the rotating member V changes its attitude from the second attitude (R) to the first attitude (Q) and rotates through the opening 211 of the front base part 2. Only the second display portion W2 is visible from above.

For example, if the words "Release" are displayed on the second display part W2, the user can see that the rail B is in the upper position (L) (the rail B is locked by the rail lock mechanism F). It is now possible to indicate that the condition has been lifted.

As described above, the cutting machine according to the present embodiment includes a base A having a mounting surface m on which paper P, which is a sheet to be cut, is placed, and a lower limit position ( J) and an upper position (L) which is further away from the lower limit position (J), it is supported so as to move approximately parallel to the mounting surface m, and is urged upward by a spring s1 serving as an urging means. A slider E is provided with a rotary blade KH that is supported so as to be slidable relative to the rail B and can cut the paper P, and a slider E is provided between the base A and the rail B and moves the rail B to the upper position (L ) is provided with a rail lock mechanism F that can be locked to prevent movement at least in the upper position (L) direction at a lock position (K) set below the rail. The rail lock mechanism F is configured to automatically lock the rail B lowered from the upper position (L) at the lock position (K).

Therefore, it is possible to provide a cutting machine having a configuration that allows the rail B to be suitably locked at a position lower than the upper position (L), that is, at the lock position (K).

In other words, since the rail B, which can move approximately parallel to the base A, can be automatically locked at a predetermined position so as not to move upward, the user can suitably perform the operation of cutting the paper P. It becomes.

The lock position (K) is set above the lower limit position (J). Therefore, regardless of the number of stacked sheets of paper P to be cut, the operation for cutting the paper P can be carried out suitably.

The rail locking mechanism F includes a locking member T that is movable relative to the base A, and an engaging member U that is integrally provided on the rail B and that the locking member T can engage with at the locking position (K). It is equipped with the following. Then, the locking position (M) in which the locking member T can inhibit the upward movement of the rail B by engaging with the engaging member U, and the non-locking position in which the locking member T is retracted from the engaging member U rather than the locking position (M). (N), and is biased toward the locking position (M) by a lock member biasing spring s3 serving as biasing means.

For this reason, it is possible to configure a suitable rail locking mechanism F mainly by a locking member T provided movably relative to the base A and an engaging member U provided integrally with the rail B. It has become possible.

It is equipped with a paper presser D that can press the paper P from above, and the rail B can press the sheet body from above via the paper presser D in the lock position (K).

Therefore, the paper P to be cut can be appropriately held down when the rail B is in the lock position (K).

The rail B is provided with a lock release means G capable of releasing the state in which the rail B is locked in the lock position (K) by operating the lock member T in the lock position (M) in the direction of the non-lock position (N). .

Therefore, by realizing a configuration in which the lock member T can be operated, the state in which the rail B is locked at the lock position (K) can be appropriately released.

A lock member T is rotatably supported by a base A. The lock release means G is constituted by a rotating member V rotatably supported on the base A.

Therefore, it is possible to realize a configuration in which the rail B can be released from the locked position (K) by utilizing the movement of the locking member T and the rotating member V that can rotate relative to the base A. It has become.

A display means H is provided which works in conjunction with the lock member T and makes the display mode different when the rail B is in the upper position (L) and the display mode when it is in the lock position (K).

Therefore, by realizing a configuration that can work in conjunction with the locking member T, it is possible to indicate to the user whether the rail B is in the upper position (L) or in the locking position (K) using different displays. Become what you can.

The locking member T is rotatably supported with respect to the base A, and the display means H is constituted by a rotating member V which is rotatably supported with respect to the base A.

Therefore, by utilizing the movement of the locking member T and rotating member V that can rotate relative to the base A, it is possible to tell whether the rail B is in the upper position (L) or in the locking position (K) by different indications. It is possible to realize the configuration shown in FIG.

The rotating member V includes a first wall portion having a first display portion W1, and a second wall portion provided at a position adjacent to the first wall portion and having a second display portion W2. . When the rail B is in the upper position (L), the first display portion W1 is hidden by the front base portion 2, and when the rail B is in the lock position (K), the first display portion W1 is in a position hidden by the front base portion 2. The display portion W1 is in a posture that is not hidden by the front base portion 2.

Therefore, the first display portion W1 may or may not be visible to the user, so it is difficult to tell whether the rail B is in the upper position (L) or the lock position (K). This makes it easy to create different displays.

The base A includes a base main body 1 having a mounting surface m, a front base part 2 provided at the front end of the base main body 1, and a rear base part provided at the rear end of the base main body 1. It is something. A rail lock mechanism F is provided between the front base portion 2 and the rail B.

Therefore, the rail lock mechanism F can be provided at a suitable position, and the related lock release means G and display means H can be provided at suitable positions close to the user. ing.

The engagement member U has a window hole u2 into which the tip engagement portion t1, which is one end of the lock member T, can be inserted, and the locking position (M) is such that the tip engagement portion t1 is inserted into the window hole u2. It is in good condition.

Therefore, by inserting the tip engaging portion t1 into the window hole u2, the locking member T assumes the locking attitude (M) and the rail B is locked in the locking position (K). The state locked at (K) can be stabilized.

The vertical inner dimension w2 of the window hole u2 is set larger than the vertical dimension w1 of the tip engaging portion t1, which is one end of the locking member T.

Therefore, the rail B can move toward the lower limit position (J) within the vertical inner dimension of the window hole u2, so the rail B can move toward the lower limit position (J) than the lock position (K). This makes it possible to suitably realize a configuration that can operate in the following manner.

Note that the present invention is not limited to the embodiments detailed above.

It goes without saying that the object to be cut by the cutting machine is not limited to paper, but may be any other type of sheet material.

The rotary blade of the slider may not move up and down relative to the slider body.

The lock position of the rail is not limited to being set above the lower limit position, but may be the same position as the lower limit position.

The rail lock mechanism may be such that the locking member is movable relative to the rail, and the engaging member is integrally provided with the base.

The locking member constituting the rail locking mechanism may be provided as long as it is movable relative to the base, and is not limited to being provided as being rotatable.

The engaging member constituting the rail lock mechanism is not limited to being separate from the rail receiving member, but may be integrally molded with the rail receiving member from synthetic resin.

In the embodiments described above, the lock release means and the display means are implemented by the same rotating member, but the invention is not limited to this, and they may be constructed from separate and independent rotating members.

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 spirit of the present invention.

A...Base B...Rail D...Paper holder E...Slider F...Rail locking mechanism G...Lock release means H...Display means

Claims (9)

A base having a placement surface on which the sheet body to be cut is placed, a lower limit position closest to this base, and an upper position farther from this lower limit position relative to the above-mentioned placement surface. a rail supported so as to move up and down in a substantially parallel position and urged upward by an urging means, and a slider provided with a rotary blade supported so as to be slidable relative to the rail and capable of cutting the sheet body. , a rail locking mechanism provided between the base and the rail and capable of locking the rail so that it does not move at least in the direction of the upper position at a lock position set below the upper position. It is a machine,
The rail locking mechanism is capable of automatically locking the rail lowered from the upper position at the locking position,
The rail locking mechanism includes a locking member that is provided on the base and is movable relative to the base, and an engagement member that is integrally provided on the rail and that can be engaged with the locking member in the locking position. It is equipped with
The locking member can take a locking position in which upward movement of the rail can be prohibited by engaging with the engaging member, and a non-locking position in which the locking member is retracted from the engaging member rather than the locked position, It is urged in the direction of the locked posture by a biasing means,
The rail is provided with a lock release means capable of releasing the state in which the rail is locked in the locked position by operating the locking member in the locked position in the direction of the unlocked position,
the locking member is rotatably supported with respect to the base;
A cutting machine, wherein the lock release means is constituted by a rotating member rotatably supported with respect to the base . A base having a placement surface on which the sheet body to be cut is placed, a lower limit position closest to this base, and an upper position farther from this lower limit position relative to the above-mentioned placement surface. a rail supported so as to move up and down in a substantially parallel position and urged upward by an urging means, and a slider provided with a rotary blade supported so as to be slidable relative to the rail and capable of cutting the sheet body. , a rail locking mechanism provided between the base and the rail and capable of locking the rail so that it does not move at least in the direction of the upper position at a lock position set below the upper position. It is a machine,
The rail locking mechanism is capable of automatically locking the rail lowered from the upper position at the locking position,
The rail locking mechanism includes a locking member that is provided on the base and is movable relative to the base, and an engagement member that is integrally provided on the rail and that can be engaged with the locking member in the locking position. It is equipped with
The locking member can take a locking position in which upward movement of the rail can be prohibited by engaging with the engaging member, and a non-locking position in which the locking member is retracted from the engaging member rather than the locked position, It is urged in the direction of the locked posture by a biasing means,
A cutting machine comprising a display means that is interlocked with the locking member and makes a display mode different when the rail is in the upper position and a display mode when the rail is in the lock position. A base having a placement surface on which the sheet body to be cut is placed, a lower limit position closest to this base, and an upper position farther from this lower limit position relative to the above-mentioned placement surface. a rail supported so as to move up and down in a substantially parallel position and urged upward by an urging means, and a slider provided with a rotary blade supported so as to be slidable relative to the rail and capable of cutting the sheet body. , a rail locking mechanism provided between the base and the rail and capable of locking the rail so that it does not move at least in the direction of the upper position at a lock position set below the upper position. It is a machine,
The rail locking mechanism is capable of automatically locking the rail lowered from the upper position at the locking position,
The rail locking mechanism includes a locking member that is provided on the base and is movable relative to the base, and an engagement member that is integrally provided on the rail and that can be engaged with the locking member in the locking position. It is equipped with
The locking member can take a locking position in which upward movement of the rail can be prohibited by engaging with the engaging member, and a non-locking position in which the locking member is retracted from the engaging member rather than the locked position, It is urged in the direction of the locked posture by a biasing means,
The cutting machine is characterized in that the engaging member has a window hole into which one end of the locking member can be inserted, and the locking position is such that the one end is inserted into the window hole. The cutting machine according to claim 1 , wherein the lock position is set above the lower limit position. It is equipped with a paper presser that can press the sheet body from above,
The cutting machine according to claim 1, 2 , 3 , or 4 , wherein the rail is capable of pressing the sheet body from above via the paper presser in the locked position. the locking member is rotatably supported with respect to the base;
The cutting machine according to claim 2 , wherein the display means is constituted by a rotating member rotatably supported with respect to the base. The rotating member includes a first wall portion having a first display portion, and a second wall portion adjacent to the first wall portion and having a second display portion,
When the rail is in the upper position, the first display part is hidden by the base part, and when the rail is in the lock position, the first display part is hidden by the base part. The cutting machine according to claim 1 or 6 , wherein the cutting machine is in a position that does not hide the cutting machine. The base includes a base body having the mounting surface, a front base part provided at the front end of the base body, and a rear base part provided at the rear end of the base body. ,
The cutting machine according to any one of claims 1 to 7 , wherein the rail lock mechanism is provided between the front base portion and the rail. 4. The cutting machine according to claim 3 , wherein the internal dimension of the window hole in the vertical direction is set larger than the vertical dimension of the one end.

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