Medium support device of cutting plotter

Abstract

To provide a medium support device of a cutting plotter capable of reliably cutting a thin medium to be cut.SOLUTION: A medium support device of a cutting plotter comprises a support 21 that is detachably attached to a cutting plotter 1, and an electrostatic adsorption mat 11 that is movably supported in a direction parallel to a movement direction of a medium 2 by the support 21 and energized to generate an electrostatic adsorption force. The electrostatic adsorption mat 11 is driven by a medium feed mechanism in a state in which the medium-to-be-cut 2 is adsorbed by the electrostatic adsorption force.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a medium support device for a cutting plotter that supports a medium to be cut by electrostatic adhesion. [Background technology]

[0002] Conventional cutting plotters include those that are configured to correctly cut a medium even if the medium is thin, as described in Patent Document 1. The cutting plotter disclosed in Patent Document 1 is equipped with a medium support sheet that supports the thin medium in close contact with the medium, and is configured to feed a layered body made up of the medium and the medium support sheet in the forward and backward directions to perform cutting.

[0003] Patent Document 1 discloses an electrostatically attracted medium support sheet so that a product portion can be easily removed after cutting a thin medium. The electrostatic adsorption type support sheet for media to be cut is composed of a flexible plastic sheet and an electrode for electrostatic adsorption provided on the plastic sheet. By passing electricity through the electrode, an electrostatic adsorption force is generated, and the media to be cut adheres closely to the plastic sheet. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2005-205539 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the electrostatically attracted medium support sheet disclosed in Patent Document 1, both ends in the feed direction bend during cutting, and the medium to be cut may turn up without being able to follow the medium support sheet. If the medium to be cut turns up from the medium support sheet in this way, there is a risk of cutting failing when the turned-up part moves to the cutting position.

[0006] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a medium support device for a cutting plotter that is capable of reliably cutting thin media to be cut. [Means for solving the problem]

[0007] In order to achieve this objective, the media support device of a cutting plotter according to the present invention comprises a support that is detachably attached to a cutting plotter equipped with a media feed mechanism for reciprocating the medium to be cut, and an electrostatic attraction mat that is supported on the support so as to be freely movable in a direction parallel to the direction of movement of the medium to be cut and that generates an electrostatic attraction force when electricity is passed through it, and the electrostatic attraction mat is configured to be driven by the media feed mechanism while the medium to be cut is attracted by the electrostatic attraction force.

[0008] In the medium support device of the cutting plotter of the present invention, the connection portion between the cutting plotter and the support may be provided with a positioning structure that determines the position of the support relative to the cutting plotter by fitting a convex portion into a concave portion.

[0009] The present invention may be configured such that, in the medium support device of the cutting plotter, the connection portion between the cutting plotter and the support is provided with a first contact terminal on the cutting plotter side connected to a power supply unit of the cutting plotter and a second contact terminal on the support side electrically connected to the electrostatic adsorption mat, and the first contact terminal and the second contact terminal are connected to each other by connecting the support to the cutting plotter, and are separated by removing the support from the cutting plotter.

[0010] The present invention relates to a medium support device for a cutting plotter, wherein the electrostatic adsorption mat comprises a substrate supported on the support so as to be freely movable, and an electrode pattern consisting of a wiring pattern provided on the substrate, and the electrode pattern is electrically connected to the second contact terminal by a flexible cable that allows the electrostatic adsorption mat to move, and the flexible cable may be housed inside the support.

[0011] The present invention may be configured so that, in the medium support device of the cutting plotter, a hole is formed in the portion of the cutting plotter to which the support is connected, the hole opening in a direction perpendicular to the direction in which the medium to be cut moves, and the portion of the support connected to the cutting plotter is provided with a locking mechanism including an engagement piece that is movable in the direction in which the hole opens, a spring member that urges the engagement piece in one of the directions in which the hole opens and enters the hole, and an operator provided on the engagement piece, and the engagement piece engages with the hole when the support moves in the direction approaching the cutting plotter, and the engagement with the hole is released when the operator is operated. Effect of the Invention

[0012] According to the present invention, it is possible to provide a medium supporting device for a cutting plotter that can reliably cut thin media. [Brief description of the drawings]

[0013] [Figure 1] FIG. 1 is a perspective view of a cutting plotter equipped with a media support device according to the present invention. [Diagram 2] FIG. 2 is a cross-sectional view showing the medium feeding mechanism when only the medium to be cut is used. [Diagram 3] FIG. 3 is a cross-sectional view showing a medium feeding mechanism when an electrostatic adsorption mat is used. [Figure 4]FIG. 4 is a perspective view showing a portion of the cutting plotter to which the medium support device is attached. [Diagram 5] FIG. 5 is a plan view of the medium support device. [Figure 6] FIG. 6 is a perspective view of the medium support device. [Figure 7] FIG. 7 is a perspective view of the medium support device showing a state in which the electrostatic adsorption mat has been moved. [Figure 8] FIG. 8 is an enlarged perspective view of a portion of the medium support device. [Figure 9] FIG. 9 is a perspective cross-sectional view showing the positioning structure. [Figure 10] FIG. 10 is a perspective cross-sectional view showing the first and second contact terminals. [Figure 11] FIG. 11 is a perspective cross-sectional view showing a state before the lock mechanism is connected. [Figure 12] FIG. 12 is a perspective cross-sectional view showing a state after the locking mechanism has been locked. [Figure 13] FIG. 13 is an exploded perspective view of the medium support device. [Figure 14] FIG. 14 is an enlarged perspective cross-sectional view showing a portion of the medium support device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, one embodiment of a medium support device for a cutting plotter according to the present invention will be described in detail with reference to FIGS. The cutting plotter 1 shown in Figure 1 cuts out figures and letters from a sheet-like medium 2 to be cut (hereinafter simply referred to as medium 2), and is equipped with a work stage 3 along which the medium 2 is transported, and a pen carriage 4 that supports a cutting pen (not shown).

[0015] The work stage 3 is formed to extend in the transport direction of the medium 2 (the direction from the lower left to the upper right in FIG. 1) and in the left-right direction (the direction from the upper left to the lower right in FIG. 1), which is a horizontal direction intersecting the transport direction. In the following description, the downstream side in the transport direction of the medium 2 is referred to as the rear side, and the upstream side in the transport direction of the medium 2 is referred to as the front side. A sheet or a rolled sheet can be used as the medium 2. When using a thin sheet, a medium support device 5 is attached to the front end of the cutting plotter 1, and the medium 2 is supported by the medium support device 5.

[0016] When the medium support device 5 is not used, the medium 2 is transported by rotating the medium drive roller 6 while the medium 2 is sandwiched between the medium drive roller 6 and the pinch roller 7, as shown in Fig. 2. The medium drive roller 6 and the pinch roller 7 form a medium feed mechanism 8 that moves the medium 2 back and forth. The pinch roller 7 is supported by a support member 9 so as to be movable in the vertical direction, and is biased so as to be pressed against the medium drive roller 6 by the spring force of a spring member (not shown). The support member 9 is supported by a frame (not shown) of the cutting plotter 1 via rails 10 extending in the horizontal direction. When using the medium support device 5, the medium 2 is transported by stacking the medium 2 on the electrostatic adsorption mat 11 of the medium support device 5 (described later) via a protective sheet 12, and then sandwiching this stack between the medium drive roller 6 and the pinch roller 7, as shown in FIG. 3.

[0017] The pen carriage 4 has a function of driving a cutting pen (not shown) in the up-down direction, and is configured to be movable in the left-right direction. The up-down direction here refers to a vertical direction that intersects with the work stage 3. The medium 2 is cut by attaching a cutting pen to the pen carriage 4, and while the medium 2 is sandwiched between the medium drive roller 6 and the pinch roller 7, rotating the medium drive roller 6 forward or backward, and inserting the cutting pen into the medium 2 and moving it left and right together with the pen carriage 4.

[0018] A groove 13 that opens forward and downward is formed at the front end of the cutting plotter, as shown in Fig. 4. When attaching the medium support device 5 (described later) to the cutting plotter 1, a part of the front end of the medium support device 5 is inserted into this groove 13. The groove 13 is provided with a number of functional parts for mounting the medium support device 5. The first functional part is two protrusions 14 protruding into the groove 13. These protrusions 14 are intended to determine positioning when mounting the medium support device 5, and are protruding downward from the upper wall 13a of the groove 13 and extending in the front-rear direction.

[0019] The second functional part is a first contact terminal 15 exposed on the bottom wall 13b (rear end wall) of the groove 13. The first contact terminal 15 is for supplying power to the medium support device 5, and as shown in Fig. 13, is formed in a plate shape extending in the vertical and horizontal directions, is arranged on the back side of the bottom wall 13b, and is connected to a power supply unit 16 (see Fig. 1) of the cutting plotter 1. The third functional portion is an engagement hole 17 formed at each of both left and right ends of the groove 13. The engagement hole 17 is a hole for engaging a part of the medium support device 5 to prevent it from coming off. The engagement hole 17 is open in a direction penetrating the upper wall 13a of the groove 13, in other words, in the vertical direction which is perpendicular to the direction in which the medium 2 moves.

[0020] As shown in Figures 5 and 6, the medium support device 5 includes a support 21 formed into a rectangular plate shape in a planar view, and an electrostatic adsorption mat 11 supported on this support 21 so as to be freely movable in a direction parallel to the movement direction of the medium 2 (front-back direction). The support 21 is formed to be a rectangular box extending in the front-rear and left-right directions when viewed from above. As shown in Figures 13 and 14, the support 21 according to this embodiment is formed to be a hollow box with a box-shaped bottom member 21a that opens upward and a top plate 21b that closes the upper end of the bottom member 21a. A groove 22 extending in the front-rear direction is formed in the center of the bottom member 21a in the left-right direction.

[0021] The upper surface of the upper plate 21b is formed flat so that the electrostatic attraction mat 11, which will be described later, can slide and move. The upper plate 21b is also formed with first to third elongated holes 23 to 25 extending in the front-rear direction. These first to third elongated holes 23 to 25 are holes for passing accessories of the electrostatic attraction mat 11, which will be described later. 8, a connection piece 26 extending in the left-right direction is formed at the rear end of the support 21. The connection piece 26 is a part that is inserted into the groove 13 of the cutting plotter 1 when the medium support device 5 is attached to the cutting plotter 1. This connection piece 26 and the groove 13 form the connection part between the medium support device 5 and the cutting plotter 1. The support 21 is detachably attached to the cutting plotter 1 via the connection piece 26.

[0022] Two recesses 27 and a second contact terminal 28 are provided in the middle of the connection piece 26 in the left-right direction. Furthermore, a lock mechanism 29 is provided at each of both left-right ends of the connection piece 26. As shown in Fig. 9, the two recesses 27 cooperate with the above-mentioned protrusions 14 of the cutting plotter 1 to form a positioning structure 30. The positioning structure 30 is configured to position the support 21 at a correct position relative to the cutting plotter 1 in the left-right direction. The recesses 27 are formed in a shape that fits into the two protrusions 14 provided in the groove 13 of the cutting plotter 1. In other words, the connection between the cutting plotter 1 and the support 21 is provided with a positioning structure 30 that determines the position of the support 21 relative to the cutting plotter 1 by fitting the protrusions 14 into the recesses 27. The positioning of the support 21 relative to the cutting plotter 1 in the front-rear direction is performed by abutting the rear end 26a of the connection piece 26 against the bottom wall 13b of the groove 13, as shown in FIG.

[0023] The second contact terminal 28 is for supplying power to the electrostatic attraction mat 11, and is constituted by a number of pins (see FIG. 10) protruding rearward from the connection piece 26. FIG. 10 shows a state in the middle of the process of connecting the support body 21 to the cutting plotter 1. The second contact terminal is electrically connected to the electrostatic attraction mat 11 via a flexible cable 31 (see FIG. 13) that extends in the front-rear direction within the support body 21. Although not shown in detail, the pins that constitute the second contact terminal 28 are constituted so as to be movable forward and backward, and are urged rearward by a spring member. The first contact terminal 15 and the second contact terminal 28 are connected to each other by connecting the support 21 to the cutting plotter 1 , and are separated from each other by removing the support 21 from the cutting plotter 1 .

[0024] The flexible cable 31 has flexibility to allow movement of the electrostatic attraction mat 11, and is housed in a groove 22 formed in the inner bottom of the support body 21 so as to extend in the front-rear direction. The end of the flexible cable 31 on the cutting plotter 1 side is connected to a second contact terminal 28, and the end on the electrostatic attraction mat 11 side is connected to a switch section 32 (described later) of the electrostatic attraction mat 11 (see FIGS. 5 to 7).

[0025] The locking mechanism 29 is for preventing the support 21 connected to the cutting plotter 1 from coming off the cutting plotter 1. As shown in Fig. 11, the locking mechanism 29 according to this embodiment is equipped with an engagement piece 34 having a claw portion 33 that protrudes upward from the connection piece 26. At the upper end of the claw portion 33, an inclined surface 35 that slopes upward toward the front is formed, as shown in Fig. 8. The engagement piece 34 is supported by the support body 21 so as to be movable up and down, in other words, in the direction in which the engagement hole 17 of the cutting plotter 1 opens. The engagement piece 34 is also biased upward by a compression coil spring 36 provided between the engagement piece 34 and the inner bottom surface of the support body 21, in other words, in the direction in which the claw portion 33 enters the engagement hole 17. In this embodiment, the compression coil spring 36 corresponds to the "spring member" of the present invention.

[0026] An operating element 37 is attached to the upper end of the engaging piece 34 and is exposed on the upper surface of the support body 21. When the operating element provided on the engaging piece 34 in this manner is pressed downward against the spring force of the compression coil spring 36, the engaging piece 34 is lowered. In this lock mechanism 29, as the support 21 approaches the cutting plotter 1 from the front, the inclined surface 35 of the claw 33 comes into contact with the opening edge 17a (see FIG. 11) of the engagement hole 17. As the support 21 advances further in this state, the inclined surface 35 slides against the opening edge 17a of the engagement hole 17, and the claw 33 is pushed downward.

[0027] Thereafter, the claw portion 33 passes under the opening edge portion 17a of the engagement hole 17, and the spring force of the compression coil spring 36 causes the engagement piece 34 to rise, and the claw portion 33 enters the engagement hole 17 (see FIG. 12). As the claw portion 33 enters the engagement hole 17 in this manner, the engagement piece 34 engages with the engagement hole 17, and the support body 21 cannot be removed forward from the cutting plotter 1. To remove the support body 21 from the cutting plotter 1, the operator 37 is pushed down against the spring force of the compression coil spring 36. As the operator 37 is pushed down, the engagement piece 34 is lowered, and the claw portion 33 is lowered below the opening edge portion 17a of the engagement hole 17, and the engagement state is released. Then, by pulling the support body 21 forward in this state, the medium support device 5 can be removed from the cutting plotter 1.

[0028] As shown in Fig. 5, the electrostatic adsorption mat 11 is configured by attaching a plurality of functional components to a printed wiring board 41. The printed wiring board 41 has a substrate 42 formed of a hard plastic material, and first and second electrode patterns 43, 44 made of conductor patterns formed on the substrate 42 by photolithography. Although not shown, the surfaces of the substrate 42 and the first and second electrode patterns 43, 44 are covered with a protective film made of a hard material. The printed wiring board 41 is placed on a support 21 and supported so as to be movable in the front-rear direction.

[0029] The first and second electrode patterns 43, 44 have a number of main body parts 43a, 44a that extend linearly in the left-right direction from one end to the other end of the substrate 42, and connection parts 43b, 44b that connect the left-right ends of the main body parts 43a, 44a. The main body parts 43a of the first electrode pattern 43 and the main body parts 44a of the second electrode pattern 44 are alternately arranged in the front-rear direction while being spaced apart at a predetermined interval in the front-rear direction. The connection part 43b of the first electrode pattern 43 is located on the left side of the substrate 42, and the connection part 44b of the second electrode pattern 44 is located on the right side of the substrate 42. When electricity is applied to the first electrode pattern 43 and the second electrode pattern 44, an electrostatic adsorption force is generated in the area on the substrate 42 where the main body parts 43a, 44a are formed.

[0030] The first electrode pattern 43 and the second electrode pattern 44 are connected to the switch section 32 located at the front end of the printed wiring board 41 by wiring sections 43c and 44c, respectively. As shown in FIG. 14, the switch section 32 has a housing 45 provided on the upper surface of the printed wiring board 41 and an ON / OFF switch 46 . 14, the housing 45 is fixed to the printed wiring board 41 by sandwiching the printed wiring board 41 in cooperation with a support plate 47 located inside the support body 21. A connection portion 48 between the housing 45 and the support plate 47 passes through a first oblong hole 23 and a third oblong hole 25 formed in an upper plate 21b of the support body 21.

[0031] The ON / OFF switch 46 is composed of a switch body 46a mounted on the printed wiring board 41, and an operation button 46b supported so as to be movable vertically on the housing 45. When the operation button 46b is pressed down, the switch body 46a is switched between ON and OFF. To the ON / OFF switch 46, the wiring portions 43c, 44c of the first and second electrode patterns 43, 44 and the tip of the flexible cable 31 on the electrostatic adsorption mat 11 side are connected.

[0032] 14, the end of the flexible cable 31 on the electrostatic adsorption mat 11 side is pulled upward from the groove 22 of the support body 21 and supported by the support plate 47. The tip side of the flexible cable 31 beyond the support plate 47 is passed through the second elongated hole 24 of the upper plate 21b and connected to a wiring pattern for power supply (not shown) of the printed wiring board 41, and is connected to the switch body 46a via this wiring pattern for power supply.

[0033] The ON / OFF switch 46 switches between a state in which the flexible cable 31 and the first and second electrode patterns 43, 44 are electrically connected and a state in which the electrical continuity between the flexible cable 31 and the first and second electrode patterns 43, 44 is cut off. When the support 21 is attached to the cutting plotter 1 and the ON / OFF switch 46 is turned ON, electricity is passed from the power supply unit 16 through the first and second contact terminals 15, 28, the flexible cable 31, and the switch body 46a to the first and second electrode patterns 43, 44.

[0034] To cut the thin medium 2 using the medium support device 5 for a cutting plotter configured in this manner, first, the medium support device 5 is attached to the cutting plotter 1. This attachment is performed by inserting the connection piece 26 of the support 21 into the groove 13 of the cutting plotter 1 from the front. At this time, the convex portion 14 fits into the concave portion 27 of the connection piece 26, so that the support 21 is positioned in the left-right direction relative to the cutting plotter 1, and the connection piece 26 abuts against the bottom of the groove 13, so that the support 21 is positioned in the front-rear direction relative to the cutting plotter 1. By attaching the connection body to the cutting plotter 1 in this manner, the second contact terminal 28 is connected to the first contact terminal 15. In addition, the locking mechanism 29 prevents the support 21 from coming off the cutting plotter 1.

[0035] Next, the protective sheet 12 is placed on the electrostatic attraction mat 11, and the medium 2 is placed on the protective sheet 12. By sandwiching the protective sheet 12 between the electrostatic attraction mat 11 and the medium 2, it is possible to prevent the blade of the cutting pen from coming into contact with the surface of the electrostatic attraction mat 11 and becoming worn during cutting. After that, the ON-OFF switch 46 of the electrostatic attraction mat 11 is turned on. By turning on the ON-OFF switch 46, the first and second electrode patterns 43, 44 of the electrostatic attraction mat 11 are energized, and the protective sheet 12 and the medium 2 are attracted to the electrostatic attraction mat 11 by electrostatic attraction force.

[0036] With the medium 2 thus adsorbed to the electrostatic adsorption mat 11, the electrostatic adsorption mat 11 is slid backward relative to the support 21 so that the rear end of the electrostatic adsorption mat 11 is sandwiched between the medium drive roller 6 and the pinch roller 7. Thereafter, the cutting operation is performed by the cutting plotter 1. During cutting, the electrostatic attraction mat 11 is driven by the medium feed mechanism 8 and moves back and forth multiple times relative to the support 21. The substrate 42 that constitutes the electrostatic attraction mat 11 is made of a hard plastic material and is supported by the support 21, so it does not bend during cutting. For this reason, the medium 2 can be maintained in a state where it is attracted to the electrostatic attraction mat 11 by electrostatic attraction force from the start to the end of cutting. Therefore, according to this embodiment, it is possible to provide a medium supporting device for a cutting plotter that is capable of reliably cutting thin media to be cut.

[0037] At the connection between the cutting plotter 1 and the support body 21 according to this embodiment, a positioning structure 30 is provided for determining the position of the support body 21 relative to the cutting plotter 1 by fitting the protrusion 14 into the recess 27. As a result, the medium support device 5 can always be attached at a constant position relative to the cutting plotter 1, so that even when using multiple types of medium support devices 5 with different lengths in the front-to-rear direction, the cutting conditions can be made constant for all of the medium support devices 5.

[0038] The connection between the cutting plotter 1 and support 21 in this embodiment is provided with a first contact terminal 15 on the cutting plotter 1 side that is connected to the power supply unit 16 of the cutting plotter 1, and a second contact terminal 28 on the support 21 side that is electrically connected to the electrostatic adsorption mat 11. Therefore, the first and second contact terminals 15, 28 are automatically connected in conjunction with the operation of attaching the support 21 to the cutting plotter 1, so there is no need to connect or disconnect the electrical system, making it easier to handle the medium support device 5.

[0039] The electrostatic attraction mat 11 according to this embodiment includes a substrate 42 that is movably supported by the support 21, and first and second electrode patterns 43, 44 consisting of wiring patterns provided on the substrate 42. The first and second electrode patterns 43, 44 are electrically connected to the second contact terminal 28 by a flexible cable 31 that allows the electrostatic attraction mat 11 to move. The flexible cable 31 is housed inside the support 21. Therefore, when the electrostatic attraction mat 11 is moved while current is being applied to the electrostatic attraction mat 11, the wiring is not visible from the outside of the device, so that a medium support device with excellent appearance can be provided.

[0040] The medium support device 5 according to this embodiment is equipped with a locking mechanism 29 that prevents the medium support device 5 from being removed from the cutting plotter 1 while attached to the cutting plotter 1. Therefore, even if the support 21 is pushed by frictional resistance when the electrostatic attraction mat 11 moves back and forth relative to the support 21 during cutting, the medium support device 5 will not move relative to the cutting plotter 1. As a result, support of the electrostatic attraction mat 11 is stabilized, enabling cutting to be performed with even higher quality. [Explanation of symbols]

[0041] 1...cutting plotter, 2...medium to be cut, 5...medium support device, 8...medium feed mechanism, 11...electrostatic adsorption mat, 13...groove, 14...convex portion, 15...first contact terminal, 16...power supply unit, 21...support, 27...concave portion, 28...second contact terminal, 30...positioning structure, 31...flexible cable, 34...engagement piece, 36...compression coil spring (spring member), 37...operator, 42...board, 43...first electrode pattern, 44...second electrode pattern.

Claims

1. A support that is detachably attached to a cutting plotter that has a medium feed mechanism that reciprocates a medium to be cut; an electrostatic attraction mat supported on the support so as to be movable in a direction parallel to the moving direction of the medium to be cut, and which generates an electrostatic attraction force when energized; 2. A medium support device for a cutting plotter, comprising: an electrostatic attraction mat configured to be driven by the medium feed mechanism while the medium to be cut is attracted to the electrostatic attraction force.

2. 2. The medium support device of claim 1, A medium support device for a cutting plotter, characterized in that a positioning structure is provided at the connection portion between the cutting plotter and the support, which determines the position of the support relative to the cutting plotter by fitting a convex portion into a concave portion.

3. 2. The medium support device of claim 1, a first contact terminal on the cutting plotter side connected to a power supply unit of the cutting plotter and a second contact terminal on the support side electrically connected to the electrostatic adsorption mat are provided at a connection portion between the cutting plotter and the support; A media support device for a cutting plotter, characterized in that the first contact terminal and the second contact terminal are connected to each other by connecting the support to the cutting plotter, and are configured to be separated by removing the support from the cutting plotter.

4. 4. The medium support device of claim 3, The electrostatic adsorption mat is A substrate supported by the support in a movable manner; an electrode pattern formed of a wiring pattern provided on the substrate; the electrode pattern is electrically connected to the second contact terminal by a flexible cable that allows the electrostatic attraction mat to move, 2. A medium support device for a cutting plotter, wherein the flexible cable is housed inside the support body.

5. In the medium support device of the cutting plotter according to any one of claims 1 to 4, A hole is formed in a portion of the cutting plotter to which the support is connected, the hole opening in a direction perpendicular to a direction in which the medium to be cut moves, a lock mechanism provided at a portion of the support connected to the cutting plotter, the lock mechanism including an engagement piece movable in a direction in which the hole opens, a spring member for biasing the engagement piece in one of the directions in which the hole opens and in which the engagement piece enters the hole, and an operator provided on the engagement piece; A medium support device for a cutting plotter, characterized in that the engagement piece is configured to engage with the hole when the support body moves in a direction approaching the cutting plotter, and to disengage from the hole when the operating element is operated.

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