Printer

Abstract

To provide a printer for surely supporting rolls and contributing to easily coping in the case of using rolls having a different inside diameter.SOLUTION: A printer has a first adjustment member 20A and a first support member 40A. The first adjustment member 20A is provided with a hook 27. The hook 27 projects toward a second adjustment member. The first support member 40A includes a support plate 41, a support hole 42, and projection parts 45, 46. The support plate 41 includes an A surface 411 and a B surface 412. The support hole 42 penetrates the support plate 41. The projection part 45 projects from the A surface 411 of the support plate 41. The projection part 46 projects from the B surface 412 of the support plate 41. The outside diameter D2 of the projection part 46 is larger than the outside diameter D1 of the projection part 45. The projection part 45 fits into the tube of a first roll in a state in which the first support member 40A at a first A posture is attached to the first adjustment member 20A. The projection part 46 fits into the tube of a second roll in a state in which the first support member 40A at a first B posture is attached to the first adjustment member 20A.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] The present invention relates to a printer. [Background technology]

[0002] Printers that pull out a medium from a roll and print are known. For example, the printer described in Patent Document 1 supports the roll with an attachment iron core and holds the roll between a moving side holding member and a fixed side holding member. Each holding member has a base plate and a pair of mounting parts. One of the mounting parts protrudes from the base plate to one side, and the other of the mounting parts protrudes from the base plate to the other side. The pair of mounting parts have different outer diameters. Depending on the inner diameter of the roll, the user mounts each holding member on the attachment iron core with one of the mounting parts facing each other or with the other of the mounting parts facing each other. The opposing mounting parts fit into the paper tube of the roll. In this case, the fixed side holding member is fixed to the attachment iron core by a screw. The moving side holding member is axially movable relative to the attachment iron core and is not fixed to the attachment iron core. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 11-322142 Summary of the Invention [Problem to be solved by the invention]

[0004] In the above printer, when the movable holding member moves in a direction away from the fixed holding member, it may come off the mounting iron core. In this case, it is difficult for the printer to support the roll with the mounting iron core between the movable holding member and the fixed holding member. Furthermore, when switching the opposing attachment parts in the fixed holding member, the user needs to remove the fixed holding member from the mounting iron core while removing the fixed holding member from the screw. This makes it difficult for the user to deal with the case where a roll with a different inner diameter is used.

[0005] SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a printer which reliably supports a roll and contributes to easily accommodating the use of rolls having different inner diameters. [Means for solving the problem]

[0006] A printer according to one aspect of the present invention is a printer that prints on a medium, the printer comprising: a housing having an accommodation space that opens to one side in a first direction and accommodates a roll of the medium wound around a tube with the medium being accommodated in a state in which the tube extends in a second direction perpendicular to the first direction; a first adjustment member and a second adjustment member that are provided in the accommodation space and are capable of changing the distance between them in the second direction; a first support member attached to the first adjustment member; and a second support member attached to the second adjustment member, the first adjustment member having a first approach direction toward the second adjustment member in the second direction. a first hook protruding from the first adjustment member in a second approach direction toward the first adjustment member in the second direction, and the first support member includes a first A surface and a first B surface facing opposite each other in the second direction, and includes a first support plate having a first support hole penetrating from the first A surface to the first B surface, a first protruding portion A protruding from the first A surface of the first support plate radially outward from the first support hole and having a first outer diameter, and a second protruding portion A protruding from the first B surface of the first support plate radially outward from the first protruding portion A and having a first outer diameter and a first protruding portion B having a second outer diameter larger than the first hook, and the first support member is attached to the first adjustment member by engaging the first hook with the first support plate through the first support hole, and when the first support member is attached to the first adjustment member in a first A position in which the first A surface of the first support plate faces the second adjustment member, the first protruding portion A fits into the cylinder, and when the first support member is attached to the first adjustment member in a first B position in which the first B surface of the first support plate faces the second adjustment member, the first protruding portion B fits into the cylinder, and the second support the support member includes a second support plate including a second A surface and a second B surface facing opposite to each other in the second direction, the second support plate being provided with a second support hole penetrating from the second A surface to the second B surface, a second protruding portion A protruding from the second A surface of the second support plate radially outside the second support hole and having the first outer diameter, and a second protruding portion B protruding from the second B surface of the second support plate radially outside the second protruding portion A and having the second outer diameter, the second support member being attached to the second adjustment member by the second hook engaging with the second support plate through the second support hole,When the second support member is attached to the second adjustment member in a second A position in which the second A surface of the second support plate faces the first adjustment member, the second protruding portion A fits into the cylinder, and when the second support member is attached to the second adjustment member in a second B position in which the second B surface of the second support plate faces the first adjustment member, the second protruding portion B fits into the cylinder.

[0007] According to the above aspect, the first support member is securely attached to the first adjustment member by the first hook. A user can attach or detach the first support member to or from the first adjustment member by inserting or removing the first hook into or from the first support hole. Furthermore, the second support member is securely attached to the second adjustment member by the second hook. A user can attach or detach the second support member to or from the second adjustment member by inserting or removing the second hook into or from the second support hole. This contributes to the printer reliably supporting the roll and easily accommodating the use of rolls with different inner diameters.

[0008] In the printer, the first adjustment member may be provided with a first through hole penetrating in the second direction, the first hook may be disposed at a first specific portion that is a part of the periphery of the first through hole, the first adjustment member may be provided with a first lever that is connected to the first hook at the first specific portion of the first adjustment member and protrudes from the first specific portion in a first separation direction opposite to the first approach direction in the second direction, and the second adjustment member may be provided with a second through hole penetrating in the second direction, the second hook may be disposed at a second specific portion that is a part of the periphery of the second through hole, and the second adjustment member may be provided with a second lever that is connected to the second hook at the second specific portion of the second adjustment member and protrudes from the second specific portion in a second separation direction opposite to the second approach direction in the second direction. In this case, the hook is bent by operating the lever. This allows the user to easily remove the first support member and the second support member from the first adjustment member and the second adjustment member. Thus, the printer contributes to easily removing the support member from the connecting plate.

[0009] In the printer, the first adjustment member has a first rib that protrudes in the first separation direction and surrounds the first through hole when viewed from the second direction, an end of the first lever in the first separation direction is not located in the first separation direction further than an end of the first rib in the first separation direction, and the second adjustment member has a second rib that protrudes in the second separation direction and surrounds the second through hole when viewed from the second direction, and an end of the second lever in the second separation direction is not located in the second separation direction further than an end of the second rib in the second separation direction. In this case, the lever is prevented from being operated unintentionally by the user. Thus, the printer contributes to preventing the first support member and the second support member from coming off the first adjustment member and the second adjustment member unintentionally by the user.

[0010] In the printer, the first hook has a first extending portion extending in the first approaching direction in the second direction, and a first claw portion protruding from an end of the first extending portion in the first approaching direction in a protruding direction intersecting the second direction, the first claw portion including a first engagement surface A facing the first separating direction in the second direction and extending perpendicular to the second direction, the first support plate including a pair of first engagement surfaces B provided around the first support hole on each of the first A surface and the first B surface and extending perpendicular to the second direction, when the first support member is attached to the first adjustment member in the first A position, the first engagement surface A and the first engagement surface B on the first A surface engage with each other, and when the first support member is attached to the first adjustment member in the first B position, the first engagement surface A and the first engagement surface B on the first B surface engage with each other, The second hooks engage with each other, and the second hook has a second extension portion extending in the second approach direction in the second direction and a second claw portion protruding in the protruding direction from the end of the second extension portion in the second approach direction, and the second claw portion includes a second engagement surface A facing the second separation direction in the second direction and extending perpendicular to the second direction, and the second support plate includes a pair of second engagement surfaces B provided around the second support hole on each of the second A surface and the second B surface and extending perpendicular to the second direction, and when the second support member is attached to the second adjustment member in the second A position, the second engagement surface A and the second engagement surface B of the second A surface engage with each other, and when the second support member is attached to the second adjustment member in the second B position, the second engagement surface A and the second engagement surface B of the second B surface engage with each other. In this case, even if an attempt is made to remove the first support member from the first adjustment member without operating the lever, the first engagement surface A and the first engagement surface B engage with each other, thereby preventing the first support member from being removed from the first adjustment member. Even if an attempt is made to remove the second support member from the second adjustment member without operating the lever, the second engagement surface A and the second engagement surface B engage with each other, thereby preventing the second support member from being removed from the second adjustment member. Thus, the printer contributes to preventing the first support member and the second support member from being unintentionally removed from the first adjustment member and the second adjustment member.

[0011] In the printer, the first hook may have a first extending portion extending in the first approach direction in the second direction and a first claw portion protruding from an end of the first extending portion in the first approach direction in a protruding direction intersecting the second direction, the first claw portion being a surface provided at a tip of the first claw portion in the protruding direction and including a first guide surface A extending in the opposite direction to the first approach direction as it approaches the protruding direction, and the second hook may have a second extending portion extending in the second approach direction in the second direction and a second claw portion protruding in the protruding direction from an end of the second extending portion in the second approach direction, the second claw portion being a surface provided at a tip of the second claw portion in the protruding direction and including a second guide surface A extending in the opposite direction to the second approach direction as it approaches the protruding direction. In this case, the first supporting member comes into contact with the first guide surface A during the process of attaching the first supporting member to the first adjusting member. This causes the first hook to bend, so that the user can easily attach the first supporting member to the first adjusting member. In the process of attaching the second support member to the second adjustment member, the second support member comes into contact with the second guide surface A. This causes the second hook to bend, allowing the user to easily attach the second support member to the second adjustment member. Thus, the printer contributes to easily attaching the first support member and the second support member to the first adjustment member and the second adjustment member.

[0012] In the printer, the first hook has a first extending portion extending in the first approaching direction of the second direction, and a first claw portion protruding from an end of the first extending portion in the first approaching direction in a protruding direction intersecting the second direction, the first support plate includes a pair of first guide surfaces B provided around the first support hole on each of the first A surface and the first B surface and extending in directions approaching each other in the second direction as they approach the first support hole, and in a state where the first support member is attached to the first adjustment member in the first A position, the first claw portion and the first guide surface B of the first A surface face each other in the second direction, and in a state where the first support member is attached to the first adjustment member in the first B position, the first claw portion and the first guide surface B of the first B surface face each other in the second direction. The second hook has a second extending portion extending in the second approaching direction in the second direction and a second claw portion protruding in the protruding direction from an end of the second extending portion in the second approaching direction, and the second support plate includes a pair of second guide surfaces B provided around the second support hole on each of the second A surface and the second B surface, and extending in a direction approaching each other in the second direction as they approach the second support hole, and in a state where the second support member is attached to the second adjustment member in the second A position, the second claw portion and the second guide surface B of the second A surface may face each other in the second direction, and in a state where the second support member is attached to the second adjustment member in the second B position, the second claw portion and the second guide surface B of the second B surface may face each other in the second direction. In this case, the first support member comes into contact with the second guide surface in the process of being removed from the first adjustment member. This causes the first hook to bend, so that the user can easily remove the first support member from the first adjustment member. Since the second hook is bent, the user can easily detach the second support member from the second adjustment member, which contributes to easily detaching the first support member and the second support member from the first adjustment member and the second adjustment member of the printer. [Brief description of the drawings]

[0013] [Figure 1]1 is a perspective view of the printer 1 with the roll M2 housed therein and the cover 3 closed, as viewed from above and on the front right side. [Diagram 2] 1 is a perspective view of the printer 1 with the cover 3 open, as viewed from above and to the front right. [Diagram 3] 1 is a perspective view of the printer 1 with the roll M1 housed therein and the cover 3 open, as viewed from above and on the front right side. [Figure 4] 1 is a perspective view of the printer 1 viewed from above right front with the first support member 40A and the second support member 50A removed and the cover 3 open. [Diagram 5] 2 is a perspective view of the support mechanism 10 as viewed from above and to the front. FIG. [Figure 6] 13 is a right side view of the first adjustment member 20A to which the first support member 40A is attached. FIG. [Figure 7] 11 is a perspective view of a mounting portion 23A of a first adjustment member 20A to which a first support member 40A is attached, as viewed from below and rear left. FIG. [Figure 8] 8 is a cross-sectional view of a first adjustment member 20A and a first support member 40A taken along the line VIII-VIII in FIG. 6. [Figure 9] 4 is a cross-sectional view of a second adjustment member 30A and a second support member 50A. FIG. [Figure 10] 13 is a right side view of the first adjustment member 20B to which the first support member 40B is attached. FIG. [Figure 11] 11 is a cross-sectional view of a first adjustment member 20A and a first support member 40A taken along the arrow XX shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The drawings are used to explain technical features that the present invention can employ. In other words, the configurations and the like shown in the drawings are merely illustrative examples and are not intended to limit the present invention.

[0015] The configuration of the printer 1 will be described with reference to Fig. 1 to Fig. 3. In the following, the upper left, lower right, lower left, upper right, upper, and lower in Fig. 1 are respectively defined as the left, right, front, rear, upper, and lower of the printer 1. Note that in this embodiment, for example, the up-down direction is used for convenience of explanation and is not limited to the vertical direction. The printer 1 shown in Fig. 1 is a thermal printer that prints on a long tape P.

[0016] The external configuration of the printer 1 will be described with reference to FIG. 1. The printer 1 has a main body 2 and a cover 3. The main body 2 is a substantially rectangular box-shaped body extending in the front-rear direction, and constitutes the lower part of the printer 1. The main body 2 opens upward (see FIG. 2). The cover 3 is a substantially rectangular box-shaped body extending in the front-rear direction, and constitutes the upper part of the printer 1. The cover 3 can rotate around an axis extending in the left-right direction at the rear upper end of the main body 2. When the cover 3 is closed (see FIG. 1), it covers the opening of the main body 2 from above, and when it is open (see FIG. 2), it opens the opening of the main body 2 upward. The discharge port 4 is a gap between the front wall of the main body 2 and the front wall of the cover 3, and extends in the left-right direction. The printed tape P is discharged from the printer 1 through the discharge port 4.

[0017] The internal configuration of the printer 1 will be described with reference to Figures 2 and 3. As shown in Figure 2, the main body 2 houses a main body cover 5, a support mechanism 10, and a platen roller 6 inside. The main body cover 5 is provided at the bottom of the main body 2, and is an arc-shaped plate that is recessed downward when viewed from the side (see Figure 4). The rear end of the main body cover 5 is located at approximately the same position as the rear end of the main body 2. The front end of the main body cover 5 is located between the front end of the main body 2 and the center of the main body 2 in the front-to-rear direction.

[0018] The main body cover 5 defines an accommodation space 9. As shown in FIG. 3, a roll M is accommodated in the accommodation space 9. The roll M is configured by winding a tape P around a tube N. The tape P is, for example, paper, a plastic sheet, etc. The tube N has an axis extending in the left-right direction. In this embodiment, the roll M is either a roll M1 (see FIG. 3) or a roll M2 (see FIG. 1). The inner diameter of the tube N2 of the roll M2 is larger than the inner diameter of the tube N1 of the roll M1. The support mechanism 10 rotatably supports the roll M1 or the roll M2 accommodated in the accommodation space 9. A detailed configuration of the support mechanism 10 will be described later.

[0019] The platen roller 6 is located between the front end of the main body 2 and the front end of the main body cover 5 in the front-rear direction. The platen roller 6 is a cylinder with an axis extending in the left-right direction, and is provided on the main body 2 so as to be rotatable about the axis. The platen roller 6 is rotated by the drive of a motor (not shown), and pays out the tape P from the roll M.

[0020] A thermal head 7 is provided at the lower end of the cover 3. The thermal head 7 is a plate-like shape extending in the left-right direction, and includes multiple heating elements arranged in the left-right direction. When the cover 3 is in a state where the opening of the main body 2 is closed, the thermal head 7 faces the platen roller 6 with a slight gap therebetween in the vertical direction. The thermal head 7 prints on the tape P by selectively heating the multiple heating elements.

[0021] The configuration of the support mechanism 10 will be described with reference to Fig. 2 to Fig. 8. As shown in Fig. 5, the support mechanism 10 has a support base 11, a first adjustment member 20A, a second adjustment member 30A, a first support member 40A, and a second support member 50A. The support base 11 is provided with guide members 12, 13, a pinion gear 14, two coil springs (not shown), a position adjuster 16, and a nut 17.

[0022] The support base 11 has a base body 111 and a front support part 112. The base body 111 is a roughly rectangular box shape that is long in the left-right direction in a plan view. The front support part 112 protrudes forward from the front end of the base body 111. The front support part 112 is a roughly rectangular plate shape that is long in the left-right direction in a plan view. The left end of the front support part 112 is located at roughly the same position as the left end of the base body 111 in the left-right direction. The right end of the front support part 112 is located between the left-right center of the base body 111 and the right end of the base body 111 in the left-right direction.

[0023] Guide members 12, 13 are provided above table main body 111, and are generally rectangular plate-like in shape elongated in the left-right direction in plan view. Guide members 12, 13 are aligned with each other in the front-rear direction, with guide member 12 in front of guide member 13. Guide members 12, 13 are supported by table main body 111 so as to be movable in the left-right direction. A rack gear (not shown) is provided at the front end of guide member 13. A rack gear (not shown) is provided at the rear end of guide member 12. A locking portion 121 protruding forward is provided at the front end of guide member 12.

[0024] The pinion gear 14 is provided above the table main body 111 and in the center in the left-right direction. The pinion gear 14 is provided between the guide members 12 and 13 in the front-rear direction. The pinion gear 14 meshes with a rack gear provided at the rear end of the guide member 12 and a rack gear provided at the front end of the guide member 13. The pinion gear 14 is rotatable around an axis extending in the up-down direction.

[0025] When the guide member 12 moves to the right, the pinion gear 14 rotates counterclockwise in a plan view, and the guide member 13 moves to the left. Conversely, when the guide member 12 moves to the left, the pinion gear 14 rotates clockwise in a plan view, and the guide member 13 moves to the right.

[0026] One of the two coil springs connects the left end of table main body 111 and the right end of guide member 12. One coil spring constantly urges guide member 12 leftward. The other of the two coil springs connects the right end of table main body 111 and the left end of guide member 13. The other coil spring constantly urges guide member 13 rightward.

[0027] The position adjustment tool 16 is provided above the front support part 112. The position adjustment tool 16 has a screw portion 161 and an operation part 162. The screw portion 161 is rod-shaped extending in the left-right direction, and is rotatable around its axis above the front support part 112. The operation part 162 is approximately cylindrical with an axis extending in the left-right direction, and is connected to the left end of the screw portion 161. The axis of the screw portion 161 and the axis of the operation part 162 are on the same line. The operation part 162 is rotatable around its axis. When the user rotates the operation part 162, the screw portion 161 rotates integrally with it.

[0028] The nut 17 meshes with the threaded portion 161 above the front support portion 112. When the operating portion 162 is rotated in the forward or reverse direction, the nut 17 is guided by the threaded portion 161 and moves left and right. Since the guide member 13 is constantly biased leftward by the other coil spring, the locking portion 121 locks onto the nut 17 from the right. The position of the nut 17 determines the position of the guide member 12, and the position of the guide member 13 is relatively determined via the pinion gear 14.

[0029] The configuration of the first adjustment member 20A will be described with reference to Figs. 5 to 8. As shown in Fig. 6, the first adjustment member 20A has a base plate 21, a connecting portion 22, and an attachment portion 23A. The base plate 21 is a plate shaped like a substantially right-angled triangle in side view. As shown in Fig. 5, the connecting portion 22 is a plate extending leftward from the lower front end of the base plate 21. The connecting portion 22 is fixed to the guide member 12. The first adjustment member 20A moves in the left-right direction integrally with the guide member 12.

[0030] The mounting part 23A is connected to the rear end of the base plate 21 (see FIG. 6). As shown in FIG. 8, the mounting part 23A has a base plate 230, annular ribs 231, 232, 233, through holes 24, 25, a rib 234, an arc-shaped rib 26, a hook 27, and a lever 28. As shown in FIG. 6, the base plate 230 is in the shape of a circular plate in a side view.

[0031] The annular rib 231 is annular in side view extending leftward from the peripheral edge of the left surface of the substrate 230 (see FIG. 8). The annular rib 232 is annular in side view extending rightward from the peripheral edge of the right surface of the substrate 230. The right end of the annular rib 232 is the right end of the mounting portion 23A.

[0032] 8, the annular rib 233 is generally annular in side view, extending leftward from the left surface of the substrate 230. The left end of the annular rib 233 is to the left of the left end of the annular rib 231. In side view, the centers of the annular ribs 231, 232, and 233 overlap with the center of the substrate 230. The outer diameter of the annular rib 233 is smaller than the outer diameter of the annular rib 231. Therefore, the annular rib 233 is disposed radially inward of the annular rib 231. A pair of notches (not shown) are formed at the front upper end and rear upper end of the annular rib 233, cutting rightward to the substrate 230.

[0033] As shown in Figures 6 and 7, through holes 24, 25 are U-shaped and open upward, and penetrate substrate 230 in the left-right direction. Through hole 25 is provided in substrate 230 so as to surround through hole 24 in side view. Through holes 24, 25 pass through each of a pair of cutouts in annular rib 233 in side view. The lower end of through hole 24 is above the center of substrate 230. The lower end of through hole 25 passes through approximately the center of substrate 230. Of the periphery of through hole 25, the periphery above lower end portion 251 of through hole 25 is referred to as specific portion 252.

[0034] As shown in FIG. 7, the rib 234 extends rightward from the right surface of the substrate 230. The right end of the rib 234 is at the same position as the right end of the annular rib 232 in the left-right direction. The rib 234 includes extensions 2341, 2342, and 2343. The extension 2341 extends rearward from the front upper end of the annular rib 232. The extension 2342 extends forward from the rear upper end of the annular rib 232. The extension 2343 extends downward from the rear end of the extension 2341, then rearward, and upward to connect with the front end of the extension 2342, forming a U-shape in side view. The extension 2343 is disposed inside the through hole 24 in side view and defines the periphery of the through hole 24. The right end of the extension 2343 is at the same position as the right end of the annular rib 232 in the left-right direction.

[0035] As shown in Fig. 8, the arc-shaped rib 26 extends leftward from the left surface of the substrate 230. The arc-shaped rib 26 is located below the center of the substrate 230 in the up-down direction. The arc-shaped rib 26 defines the lower periphery of the lower end portion 251 of the through-hole 25. The arc-shaped rib 26 extends in the left-right direction in a side view and extends in an arc shape that bulges downward. The arc shape of the arc-shaped rib 26 is defined by a circle whose diameter is the distance from the center of the substrate 230 to the arc-shaped rib 26.

[0036] The hook 27 has an extension portion 271 and a claw portion 272. The extension portion 271 extends leftward from the left surface of the substrate 230. The extension portion 271 is located slightly above the center of the substrate 230 in the vertical direction, and is located between the lower end of the through hole 24 and the lower end of the through hole 25 in the vertical direction. The extension portion 271 defines the lower periphery of the lower end portion 241 of the through hole 24 and the upper periphery of the lower end portion 251 of the through hole 25. That is, the extension portion 271 is disposed in the specific portion 252. The extension portion 271 is aligned with the arc-shaped rib 26 in the vertical direction, and is located above the arc-shaped rib 26.

[0037] Claw portion 272 protrudes leftward and upward from the left end of extension portion 271. Claw portion 272 includes end faces 2721, 2722, 2723, and 2724. End faces 2721 and 2722 are perpendicular to the left-right direction. End face 2721 is disposed at the left end of claw portion 272. End face 2722 is disposed at the upper right end of claw portion 272. End face 2722 extends upward from the upper left end of extension portion 271. The position of the upper end of end face 2722 is higher in the left-right direction than the position of the upper end of end face 2721.

[0038] End face 2723 extends leftward from the upper end of end face 2722. The position of the left end of end face 2723 is further right than the position of end face 2721 in the left-right direction. End face 2724 extends downward and left from the left end of end face 2723 toward the upper end of end face 2721. In other words, end face 2724 extends rightward as it extends upward.

[0039] 7 and 8, lever 28 has extension portion 281 and multiple ribs 282. Extension portion 281 extends rightward from the right end of extension portion 271, and has a rectangular plate shape that is long in the front-rear direction in a plan view. In other words, extension portion 281 protrudes rightward from specific portion 252. The right end of extension portion 281 is located at the same position as the right end of annular rib 232 in the left-right direction.

[0040] The multiple ribs 282 are plate-shaped and extend downward from the lower end of the extending portion 281 and extend in the left-right direction in a bottom view. The multiple ribs 282 are provided over substantially the entire area of ​​the extending portion 281 in the left-right direction. The multiple ribs 282 are lined up in the front-rear direction. The multiple ribs 282 are located to the right of the lower end portion 251 of the through hole 25. The lower end portion 251 of the through hole 25 overlaps the multiple ribs 282 in a right side view (see FIG. 6).

[0041] There is a through hole 24 above the hook 27, and a through hole 25 below the hook 27. Therefore, when the lever 28 is pulled up from below, the right end of the lever 28 swings upward with the specific part 252 (the left end of the extension 281) as a fulcrum. The left end of the hook 27 swings downward with the specific part 252 (the right end of the extension 271) as a fulcrum. When the hook 27 swings downward, the end face 2723 is below the upper end of the support hole 42 described later. When the pulling up of the lever 28 is released, the left end of the lever 28 elastically swings downward with the specific part 252 as a fulcrum toward the position before the pulling up. The hook 27 elastically swings upward with the specific part 252 as a fulcrum toward the position before the pulling up.

[0042] The second adjustment member 30A has a bilaterally symmetrical configuration with the first adjustment member 20A, and will be briefly described below. As shown in FIG. 9, the second adjustment member 30A has a base plate 31, a connecting portion 32, and a mounting portion 33A. The base plate 31, the connecting portion 32, and the mounting portion 33A correspond to the base plate 21, the connecting portion 22, and the mounting portion 23A of the first adjustment member 20A, respectively. The connecting portion 32 is a plate extending rightward from the front lower end of the base plate 31. The connecting portion 32 is fixed to the guide member 13 of the support mechanism 10 by a screw through a groove (not shown) provided in the main body cover 5. The second adjustment member 30A moves in the left-right direction together with the guide member 13.

[0043] As described above, when the guide member 12 moves to the right, the guide member 13 moves to the left, so that the first adjustment member 20A and the second adjustment member 30A move in a direction away from each other. Conversely, when the guide member 12 moves to the left, the guide member 13 moves to the right, so that the first adjustment member 20A and the second adjustment member 30A move in a direction toward each other. The positions of the guide members 12 and 13 are determined by the position of the nut 17. The user operates the operating unit 162 to change the position of the nut 17 and appropriately adjust the left-right positions of the first adjustment member 20A and the second adjustment member 30A.

[0044] The mounting part 33A is connected to the rear upper end of the base plate 31. The mounting part 33A has a base plate 330, annular ribs 331, 332, 333, through holes 34, 35, a rib 334, an arc-shaped rib 36, a hook 37, and a lever 38. The base plate 330, the annular ribs 331, 332, 333, the through holes 34, 35, the rib 334, the arc-shaped rib 36, the hook 37, and the lever 38 correspond to the base plate 230, the annular ribs 231, 232, 233, the through holes 24, 25, the rib 334, the arc-shaped rib 36, the hook 37, and the lever 38 of the mounting part 23A, respectively.

[0045] The left end of the annular rib 332 is the left end of the mounting portion 33A. The left end of the annular rib 332, the left end of the rib 334, and the left end of the lever 38 are at the same position in the left-right direction. Of the periphery of the through hole 35, the periphery above the lower end portion 351 of the through hole 35 is called a specific portion 352.

[0046] The hook 37 has an extension portion 371 and a claw portion 372. The extension portion 371 and the claw portion 372 correspond to the extension portion 271 and the claw portion 272 of the hook 27, respectively. The extension portion 371 is disposed in the specific portion 352, and extends rightward from the right surface of the substrate 330. That is, the hook 27 of the first adjustment member 20A protrudes toward the second adjustment member 30A, and the hook 37 of the second adjustment member 30A protrudes toward the first adjustment member 20A.

[0047] The claw portion 372 protrudes rightward and upward from the right end of the extending portion 371. The claw portion 372 includes end faces 3721, 3722, 3723, and 3724. The end faces 3721, 3722, 3723, and 3724 correspond to the end faces 2721, 2722, 2723, and 2724 of the claw portion 272, respectively.

[0048] End faces 3721 and 3722 are perpendicular to the left-right direction. End face 3721 is disposed at the left end of claw portion 372. End face 3722 is disposed at the upper right end of claw portion 372. End face 3722 extends upward from the upper right end of extension portion 371. End face 3723 extends rightward from the upper end of end face 3722. In other words, end face 3724 extends downward and right from the right end of end face 3723 toward the upper end of end face 3721.

[0049] The lever 38 has an extension 381 and a plurality of ribs 382. The extension 381 and the plurality of ribs 382 correspond to the extension 281 and the plurality of ribs 282 of the lever 28, respectively. There is a through hole 34 above the hook 37, and there is a through hole 35 below the hook 37. Therefore, when the lever 38 is pulled up from below, the right end of the lever 38 swings upward with the specific part 352 (the left end of the extension 381) as a fulcrum. The left end of the hook 37 swings downward with the specific part 352 (the right end of the extension 371) as a fulcrum. When the hook 37 swings downward, the end surface 3723 is below the upper end of the support hole 52 described later. When the pulling up of the lever 38 is released, the left end of the lever 38 swings downward with the specific part 352 as a fulcrum toward the position before pulling up due to elasticity. The hook 37 elastically swings upward with the specific portion 352 as a fulcrum toward the position before being pulled up.

[0050] The configuration of the first support member 40A will be described with reference to Figures 5 and 8. The first support member 40A supports the roll M in cooperation with the second support member 50A described below (see Figure 3). The first support member 40A is detachably attached to the attachment portion 23A (see Figures 4 and 5).

[0051] 8, the first support member 40A has a support plate 41, a support hole 42, and protrusions 43, 44, 45, and 46. The support plate 41 is a circular plate in a side view. The outer diameter of the support plate 41 is larger than the outer diameter of the substrate 230. When the first support member 40A is attached to the attachment portion 23A, the center of the support plate 41 overlaps with the center of the substrate 230 in a side view.

[0052] The support plate 41 includes an A surface 411 and a B surface 412. The A surface 411 and the B surface 412 are a pair of surfaces that are perpendicular to the axial direction of the support plate 41 and face opposite to each other. In FIG. 5, the support plate 41 is disposed so that the A surface 411 faces to the right and the B surface 412 faces to the left. In FIG. 8, the support plate 41 is disposed so that the A surface 411 faces to the left and the B surface 412 faces to the right. In this way, the support plate 41 is disposed so that the A surface 411 and the B surface 412 are perpendicular to the left-right direction, and the A surface 411 and the B surface 412 face opposite to each other in the left-right direction.

[0053] 8, the support hole 42 penetrates the support plate 41 from the A surface 411 to the B surface 412. The support hole 42 is a circular hole having an axis extending in the left-right direction. The axis of the support hole 42 overlaps with the center of the support plate 41 in a side view. The outer diameter of the support hole 42 is approximately the same as the distance from the upper end of the extension portion 271 to the lower end of the arc-shaped rib 26. When the first support member 40A is attached to the attachment portion 23A, the end face 2723 of the hook 27 is located above the support hole 42.

[0054] The protrusion 43 is a generally annular rib in side view that protrudes from the A-surface 411 of the support plate 41. The center of the protrusion 43 overlaps with the center of the support plate 41 in side view. The outer diameter of the protrusion 43 is larger than the outer diameter of the support hole 42. Therefore, the protrusion 43 is disposed radially outside the support hole 42 and disposed so as to surround the support hole 42 in side view. A portion of the A-surface 411 that is radially outside the support hole 42 and radially inside the protrusion 43 is referred to as the engagement A-surface 4111. Since the A-surface 411 is perpendicular to the left-right direction, the engagement A-surface 4111 is also perpendicular to the left-right direction.

[0055] The protrusion 44 is a generally annular rib in side view that protrudes from the B surface 412 of the support plate 41. The center of the protrusion 43 overlaps with the center of the support plate 41 in side view. The outer diameter of the protrusion 44 is the same as the outer diameter of the protrusion 43. Therefore, the protrusion 44 is disposed radially outside the support hole 42 and disposed so as to surround the support hole 42 in side view. The protrusion 44 is aligned in the left-right direction with the protrusion 43 in front view. A portion of the B surface 412 that is radially outside the support hole 42 and radially inside the protrusion 44 is called the engagement B surface 4121. Since the B surface 412 is perpendicular to the left-right direction, the engagement B surface 4121 is also perpendicular to the left-right direction.

[0056] The protrusion 45 is a generally annular rib in side view protruding from the A surface 411 of the support plate 41. The center of the protrusion 45 overlaps with the center of the support plate 41 in side view. The outer diameter D1 of the protrusion 45 is larger than the diameter of the protrusion 43. Therefore, the protrusion 45 is disposed radially outside the protrusion 43 and disposed so as to surround the protrusion 43 in side view. The outer diameter D1 of the protrusion 45 is the same as the inner diameter of the tube N1 of the roll M1. Therefore, the protrusion 45 can be fitted inside the tube N1. The outer diameter D1 of the protrusion 45 is smaller than the diameter of the annular rib 231. When the first support member 40A is attached to the attachment portion 23A, the protrusion 45 is inside the annular rib 231 in side view (see FIG. 5).

[0057] The protrusion 46 is a generally annular rib protruding from the B surface 412 of the support plate 41 in a side view. The center of the protrusion 46 overlaps with the center of the support plate 41 in a side view. The outer diameter D2 of the protrusion 46 is larger than the outer diameter D1 of the protrusion 44. Therefore, the protrusion 46 is disposed radially outside the protrusion 44 and disposed so as to surround the protrusion 44 in a side view. The outer diameter D2 of the protrusion 46 is the same as the inner diameter of the tube N2 of the roll M2. Therefore, the protrusion 46 can be fitted inside the tube N2. In addition, since the inner diameter of the tube N2 is larger than the inner diameter of the tube N1, the protrusion 46 is located radially outside the protrusion 45 on the support plate 41. The outer diameter D2 of the protrusion 46 is larger than the diameter of the annular rib 231. When the first support member 40A is attached to the attachment portion 23A, the protrusion 45 is located radially outside the annular rib 231 in a side view.

[0058] When the support mechanism 10 supports the roll M1, the support plate 41 is disposed so that the A surface 411 faces left and the B surface 412 faces right (see FIG. 8). The position of the first support member 40A in which the A surface 411 faces the second adjustment member 30A in the left-right direction is referred to as the first A position. When the first support member 40A is attached to the first adjustment member 20A in the first A position, the protrusion 45 fits into the tube N1 of the roll M1.

[0059] When the support mechanism 10 supports the roll M2, the support plate 41 is disposed so that the B surface 412 faces left and the A surface 411 faces right (see FIG. 5). The position of the first support member 40A in which the B surface 412 faces the second adjustment member 30A in the left-right direction is referred to as a first B position. When the first support member 40A is attached to the first adjustment member 20A in the first B position, the protrusion 46 fits into the tube N2 of the roll M2.

[0060] Attachment and detachment of the first support member 40A to the mounting part 23A will be described with reference to Fig. 8. First, a case where the first support member 40A is attached to and detached from the mounting part 23A in the first A position will be described. When attaching the first support member 40A to the mounting part 23A in the first A position, the user brings the first support member 40A in the first A position closer to the mounting part 23A from left to right. At this time, the user positions the support plate 41 so that the center of the support plate 41 overlaps with the center of the substrate 230 in a side view.

[0061] When the first support member 40A approaches the mounting portion 23A further to the right, the end face 2724 abuts against the lower end of the engagement B surface 4121. Since the end face 2724 extends to the right as it moves upward, the end face 2724 abutting against the engagement B surface 4121 receives a downward reaction force. Therefore, when the first support member 40A is moved to the right, the end face 2724 slides on the lower end of the engagement B surface 4121, and the left end of the hook 27 bends downward with the specific portion 252 (the right end of the extension portion 271) as a fulcrum. The end face 2723 is disposed inside the support hole 42 in a plan view, and the hook 27 and the arc-shaped rib 26 pass through the support hole 42.

[0062] The hook 27 is inserted through the support hole 42, and the claw portion 272 is disposed to the left of the support hole 42. The hook 27 resiliently swings upward. The end face 2723 is disposed above the support hole 42 in the up-down direction. The end face 2722 and the engagement A surface 4111 engage with each other in the left-right direction, completing the attachment of the first support member 40A to the attachment portion 23A in the first A position. Because the end face 2722 and the engagement A surface 4111 engage with each other, the first support member 40A is prevented from coming off the attachment portion 23A unintentionally by the user.

[0063] When removing the first support member 40A in the first A position from the mounting portion 23A, the user pulls up the lever 28 from below. When the right end of the lever 28 swings upward about the specific portion 252 as a fulcrum, the left end of the hook 27 swings downward about the specific portion 252 as a fulcrum. As a result, the end face 2723 is disposed inside the support hole 42 in a plan view. In this state, when the user moves the first support member 40A to the left, the hook 27 and the arc-shaped rib 26 are pulled out of the support hole 42, and removal of the first support member 40A from the mounting portion 23A is completed.

[0064] Next, a case will be described where the first support member 40A is attached to and detached from the mounting part 23A in the first position B. In this case, the general flow is the same as when the user attaches / detaches the first support member 40A to / from the mounting part 23A in the first position A, and the following description will focus on the differences from when the user attaches / detaches the first support member 40A to / from the mounting part 23A in the first position A.

[0065] When attaching the first support member 40A to the mounting portion 23A in the first B position, the user brings the first support member 40A in the first B position closer to the mounting portion 23A from left to right. The end face 2724 abuts against the lower end of the engagement A surface 4111. When the user moves the first support member 40A to the right, the end face 2724 slides on the lower end of the engagement A surface 4111, and the hook 27 swings further downward. The end face 2723 is disposed inside the support hole 42 in a plan view, and the hook 27 and the arc-shaped rib 26 pass through the support hole 42.

[0066] The hook 27 is inserted through the support hole 42, and the claw portion 272 is disposed to the left of the support hole 42. The hook 27 resiliently swings upward. The end face 2723 is disposed above the support hole 42 in the up-down direction. The end face 2722 and the engagement B surface 4121 engage with each other in the left-right direction, completing the attachment of the first support member 40A to the attachment portion 23A in the first B position (see FIG. 5). Since the end face 2722 and the engagement B surface 4121 engage with each other, the first support member 40A is prevented from coming off the attachment portion 23A unintentionally by the user.

[0067] When removing the first support member 40A in the first B position from the mounting part 23A, the user pulls up the lever 28 from below. With the end surface 2723 positioned inside the support hole 42 in a plan view, the user moves the first support member 40A to the left. The hook 27 and the arc-shaped rib 26 are pulled out of the support hole 42, completing the removal of the first support member 40A from the mounting part 23A.

[0068] The second support member 50A has the same configuration as the first support member 40A, and will be briefly described below. The second support member 50A is detachably attached to the attachment portion 33A (see Figs. 4 and 5). As shown in Fig. 9, the second support member 50A has a support plate 51, a support hole 52, and protrusions 53, 54, 55, and 56. The support plate 51, the support hole 52, and the protrusions 53, 54, 55, and 56 correspond to the support plate 41, the support hole 42, and the protrusions 43, 44, 45, and 46 of the first support member 40A, respectively.

[0069] The support plate 51 includes an A surface 511 and a B surface 512. The A surface 511 and the B surface 512 correspond to the A surface 411 and the B surface 412 of the support plate 41, respectively. In FIG. 5, the support plate 51 is disposed so that the A surface 511 faces left and the B surface 512 faces right. In FIG. 9, the support plate 51 is disposed so that the A surface 511 faces right and the B surface 512 faces left. In this way, the support plate 51 is disposed so that the A surface 511 and the B surface 512 are orthogonal to the left-right direction, and the A surface 511 and the B surface 512 face opposite to each other in the left-right direction.

[0070] Of the A surface 511, a portion that is on the outside of the support hole 52 and on the inside of the protrusion 53 is referred to as an engagement A surface 5111. Of the B surface 512, a portion that is on the outside of the support hole 52 and on the inside of the protrusion 54 is referred to as an engagement B surface 5121.

[0071] The outer diameter D1 of the protruding portion 55 is the same as the inner diameter of the tube N1 of the roll M1. Therefore, the protruding portion 55 can be fitted inside the tube N1. The outer diameter D2 of the protruding portion 56 is the same as the inner diameter of the tube N2 of the roll M2. Therefore, the protruding portion 56 can be fitted inside the tube N2.

[0072] When the support mechanism 10 supports the roll M1, the support plate 51 is disposed so that the A surface 511 faces the right and the B surface 512 faces the left. The position of the second support member 50A in which the A surface 511 faces the first adjustment member 20A in the left-right direction is referred to as the second A position (see FIG. 2). The support mechanism 10 supports the roll M1 with the first support member 40A in the first A position and the second support member 50A in the second A position.

[0073] When the support mechanism 10 supports the roll M2, the support plate 51 is disposed so that the B surface 512 faces the right and the A surface 511 faces the left. The position of the second support member 50A in which the B surface 512 faces the first adjustment member 20A in the left-right direction is referred to as the second B position (see FIG. 5). The support mechanism 10 supports the roll M2 with the first support member 40A in the first B position and the second support member 50A in the second B position.

[0074] The process of attaching and detaching the second support member 50A to and from the mounting portion 33A is the same as the process of attaching and detaching the first support member 40A to and from the mounting portion 23A. When attaching the second support member 50A to the mounting portion 33A, the user brings the second support member 50A from right to left in the second A position or the second B position toward the mounting portion 33A. The end face 3724 abuts against the lower end of the engagement A surface 5111 (engagement B surface 5121). When the user moves the second support member 50A to the left, the end face 3724 slides against the lower end of the engagement A surface 5111 (engagement B surface 5121), and the hook 37 is further bent downward. The end face 2723 is disposed inside the support hole 52 in a plan view, and the hook 37 and the arc-shaped rib 36 pass through the support hole 52.

[0075] The hook 37 is inserted through the support hole 52, and the claw portion 372 is positioned to the right of the support hole 52. The hook 37 swings upward due to its elasticity. When the second support member 50A is attached to the mounting portion 33A in the second A position, the end face 3722 and the engagement A surface 5111 engage with each other in the left-right direction. When the second support member 50A is attached to the mounting portion 33A in the second A position, the end face 3722 and the engagement B surface 5121 engage with each other in the left-right direction. The attachment of the second support member 50A to the mounting portion 33A is completed.

[0076] When removing the second support member 50A from the mounting portion 33A, the user pulls up the lever 38 from below. With the end surface 3723 positioned inside the support hole 52 in a plan view, the user moves the second support member 50A to the right. The hook 37 and the arc-shaped rib 36 are pulled out of the support hole 52, completing the removal of the second support member 50A from the mounting portion 33A.

[0077] The main effects of the printer 1 in the embodiment described above will be described. The support mechanism 10 of the printer 1 has a first adjustment member 20A, a second adjustment member 30A, a first support member 40A, and a second support member 50A. A hook 27 is provided on the first adjustment member 20A, and a hook 37 is provided on the second adjustment member 30A. The hook 27 of the first adjustment member 20A protrudes leftward toward the second adjustment member 30A, and the hook 37 of the second adjustment member 30A protrudes rightward toward the first adjustment member 20A.

[0078] The first support member 40A has a support plate 41, a support hole 42, and protrusions 45 and 46. The support plate 41 includes an A surface 411 and a B surface 412. The support hole 42 penetrates the support plate 41 from the A surface 411 to the B surface 412. The protrusion 45 protrudes from the A surface 411 of the support plate 41. The outer diameter D1 of the protrusion 45 is the same as the inner diameter of the tube N1. The protrusion 46 protrudes from the B surface 412 of the support plate 41. The outer diameter D2 of the protrusion 46 is the same as the inner diameter of the tube N2. When the first support member 40A is attached to the first adjustment member 20A in the first A position, the protrusion 45 fits into the tube N1 of the roll M1. When the first support member 40A is attached to the first adjustment member 20A in the first B position, the protrusion 46 fits into the tube N2 of the roll M2.

[0079] The second support member 50A has a support plate 51, a support hole 52, and protrusions 55 and 56. The support plate 51 includes an A surface 511 and a B surface 512. The support hole 52 penetrates the support plate 51 from the A surface 511 to the B surface 512. The protrusion 55 protrudes from the A surface 511 of the support plate 51. The outer diameter D1 of the protrusion 55 is the same as the inner diameter of the tube N1. The protrusion 56 protrudes from the B surface 512 of the support plate 51. The outer diameter D2 of the protrusion 56 is the same as the inner diameter of the tube N2. When the second support member 50A is attached to the second adjustment member 30A in the second A position, the protrusion 55 fits into the tube N1 of the roll M1. When the second support member 50A is attached to the second adjustment member 30A in the second B position, the protrusion 56 fits into the tube N2 of the roll M2.

[0080] In this case, the first support member 40A is securely attached to the first adjustment member 20A by the hook 27. The second support member 50A is securely attached to the second adjustment member 30A by the hook 37. The first support member 40A in the first A position and the second support member 50A in the second A position support the roll M1. The first support member 40A in the first B position and the second support member 50A in the second B position support the roll M2. The user can remove the first support member 40A from the first adjustment member 20A and attach the first support member 40A to the first adjustment member 20A in the first A position or the first B position by inserting and removing the hook 27 into and from the support hole 42. The user can remove the second support member 50A from the second adjustment member 30A and attach the second support member 50A to the second adjustment member 30A in the second A position or the second B position by inserting and removing the hook 37 into and from the support hole 52. Therefore, the printer 1 reliably supports the roll M, and contributes to easily accommodating the use of rolls M1 and M2 having different inner diameters.

[0081] A through hole 25 is provided in the substrate 230 of the mounting portion 23A. An extension portion 271 of the hook 27 protrudes leftward from a specific portion 252 of the through hole 25. An extension portion 281 of the lever 28 protrudes rightward from the specific portion 252. A through hole 35 is provided in the substrate 330 of the mounting portion 33A. An extension portion 371 of the hook 37 protrudes leftward from a specific portion 352 of the through hole 35. An extension portion 381 of the lever 38 protrudes rightward from the specific portion 352. In this case, the hook 27 is bent by operating the lever 28. The hook 37 is bent by operating the lever 38. This allows the user to easily remove the first support member 40A and the second support member 50A from the first adjustment member 20A and the second adjustment member 30A. Therefore, the printer 1 contributes to easily removing the first support member 40A and the second support member 50A from the first adjustment member 20A and the second adjustment member 30A.

[0082] The mounting portion 23A of the first adjustment member 20A is provided with an annular rib 232 extending leftward from the periphery of the left surface of the substrate 230. The right end of the extension portion 281 of the lever 28 is at the same position as the right end of the annular rib 232 in the left-right direction. The mounting portion 33A of the second adjustment member 30A is provided with an annular rib 332 extending rightward from the periphery of the right surface of the substrate 330. The right end of the extension portion 381 of the lever 38 is at the same position as the right end of the annular rib 332 in the left-right direction. In this case, the lever 28 does not protrude to the right of the annular rib 232, and the lever 38 does not protrude to the left of the annular rib 332. This prevents the levers 28 and 38 from being operated unintentionally by the user. Therefore, the printer 1 contributes to preventing the support member from being detached from the connecting plate unintentionally by the user.

[0083] The hook 27 has an extension portion 271 and a claw portion 272. The extension portion 271 extends leftward from the left surface of the substrate 230. The claw portion 272 protrudes leftward and upward from the left end of the extension portion 271. The claw portion 272 includes an end surface 2722 perpendicular to the left-right direction. The support plate 41 of the first support member 40A includes an engagement A surface 4111 and an engagement B surface 4121 perpendicular to the left-right direction. When the first support member 40A is attached to the first adjustment member 20A in the first A position, the end surface 2722 and the engagement A surface 4111 engage with each other in the left-right direction. When the first support member 40A is attached to the first adjustment member 20A in the first B position, the end surface 2722 and the engagement B surface 4121 engage with each other in the left-right direction.

[0084] The hook 37 has an extension portion 371 and a claw portion 372. The extension portion 371 extends rightward from the right surface of the substrate 330. The claw portion 372 protrudes rightward and upward from the right end of the extension portion 371. The claw portion 372 includes an end surface 3722 perpendicular to the left-right direction. The support plate 51 of the second support member 50A includes an engagement A surface 5111 and an engagement B surface 5121 perpendicular to the left-right direction. When the second support member 50A is attached to the second adjustment member 30A in the second A position, the end surface 3722 and the engagement A surface 5111 engage with each other in the left-right direction. When the second support member 50A is attached to the second adjustment member 30A in the second B position, the end surface 3722 and the engagement B surface 5121 engage with each other in the left-right direction.

[0085] In this case, even if the first support member 40A is to be removed from the first adjustment member 20A without operating the lever 28, the end surface 2722 engages with the engagement A surface 4111 and the engagement B surface 4121. Even if the second support member 50A is to be removed from the second adjustment member 30A without operating the lever 38, the end surface 3722 engages with the engagement A surface 5111 and the engagement B surface 5121. This prevents the first support member 40A and the second support member 50A from being removed from the mounting portions 23A and 33A unintentionally by the user. Therefore, the printer 1 contributes to preventing the first support member 40A and the second support member 50A from being removed from the first adjustment member 20A and the second adjustment member 30A unintentionally by the user.

[0086] The claw portion 272 includes an end surface 2724 that extends to the right as it moves upward. The claw portion 372 includes an end surface 3724 that extends to the left as it moves upward. In this case, in the process of attaching the first support member 40A to the first adjustment member 20A, the first support member 40A comes into contact with the end surface 2724. This causes the hook 27 to bend, so that the user can easily attach the first support member 40A to the first adjustment member 20A. In the process of attaching the second support member 50A to the second adjustment member 30A, the second support member 50A comes into contact with the end surface 3724. This causes the hook 37 to bend, so that the user can easily attach the second support member 50A to the second adjustment member 30A. Therefore, the printer contributes to easily attaching the first support member 40A and the second support member 50A to the first adjustment member 20A and the second adjustment member 30A.

[0087] In the above embodiment, the tape P corresponds to the "medium" of the present invention. The printer 1 corresponds to the "printer" of the present invention. The up-down direction of the printer 1 corresponds to the "first direction" of the present invention. The top of the printer 1 corresponds to "one of the first directions" of the present invention. The cylinders N1 and N2 correspond to the "cylinder" of the present invention. The rolls M1 and M2 correspond to the "roll" of the present invention. The left-right direction of the printer 1 corresponds to the "second direction" of the present invention. The storage space 9 corresponds to the "storage space" of the present invention. The main body 2 corresponds to the "housing" of the present invention. The first adjustment member 20A corresponds to the "first adjustment member" of the present invention. The second adjustment member 30A corresponds to the "second adjustment member" of the present invention. The first support member 40A corresponds to the "first support member" of the present invention. The second support member 50A corresponds to the "second support member" of the present invention. The hook 27 corresponds to the "first hook" of the present invention. The hook 37 corresponds to the "second hook" of the present invention. The A side 411 corresponds to the "first A side" of the present invention. The B side 412 corresponds to the "first B side" of the present invention. Support hole 42 corresponds to the "first support hole" of the present invention. Support plate 41 corresponds to the "first support plate" of the present invention. Outer diameter D1 corresponds to the "first outer diameter" of the present invention. Protruding portion 45 corresponds to the "first protruding portion A" of the present invention. Outer diameter D2 corresponds to the "second outer diameter" of the present invention. Protruding portion 46 corresponds to the "first protruding portion B" of the present invention. Surface A 511 corresponds to the "second surface A" of the present invention. Surface B 512 corresponds to the "second surface B" of the present invention. Support hole 52 corresponds to the "second support hole" of the present invention. Support plate 51 corresponds to the "second support plate" of the present invention. Protruding portion 55 corresponds to the "second protruding portion A" of the present invention. Protruding portion 56 corresponds to the "second protruding portion B" of the present invention.

[0088] The through hole 25 corresponds to the "first through hole" of the present invention. The specific portion 252 corresponds to the "first specific portion" of the present invention. The right side of the printer 1 corresponds to the "first separation direction" of the present invention. The lever 28 corresponds to the "first lever" of the present invention. The through hole 35 corresponds to the "second through hole" of the present invention. The specific portion 352 corresponds to the "second specific portion" of the present invention. The left side of the printer 1 corresponds to the "second separation direction" of the present invention. The lever 38 corresponds to the "second lever" of the present invention. The annular rib 232 corresponds to the "first rib" of the present invention. The annular rib 332 corresponds to the "second rib" of the present invention. The left side of the printer 1 corresponds to the "first approach direction" of the present invention. The extension portion 271 corresponds to the "first extension portion" of the present invention. The up-down direction of the printer 1 corresponds to the "projection direction" of the present invention. The claw portion 272 corresponds to the "first claw portion" of the present invention. The end surface 2722 corresponds to the "first engagement surface A" of the present invention. The engagement A surface 4111 and the engagement B surface 4121 correspond to the "pair of first engagement surfaces B" of the present invention. The right side of printer 1 corresponds to the "second approach direction" of the present invention. Extension portion 371 corresponds to the "second extension portion" of the present invention. Claw portion 372 corresponds to the "second claw portion" of the present invention. End surface 3722 corresponds to the "second engagement surface A" of the present invention. Engagement A surface 5111 and engagement B surface 5121 correspond to the "pair of second engagement surfaces B" of the present invention. End surface 2724 corresponds to the "first guide surface A" of the present invention. End surface 3724 corresponds to the "second guide surface A" of the present invention.

[0089] The present invention can be modified in various ways from the above embodiment. The various modified examples described below can be combined with each other as long as no contradiction occurs. The first adjustment member 20B and the first support member 40B shown in FIG. 10 and FIG. 11 are modified examples of the first adjustment member 20A and the first support member 40A, respectively. In the following modified examples, the same symbols are used for configurations having the same shape or function as the above embodiment, and the description is omitted or simplified. The direction of the XX arrow shown in FIG. 10 is the Z+ direction, and the direction opposite to the Z+ direction is the Z- direction. The Z+ direction and the Z- direction are collectively referred to as the Z direction. One of the directions perpendicular to the direction of the XX arrow shown in FIG. 10 is the Y+ direction, and the direction opposite to the Y+ direction is the Y- direction. The Y+ direction and the Y- direction are collectively referred to as the Y direction.

[0090] 10 and 11, the first adjustment member 20B has a mounting portion 23B instead of the mounting portion 23A. In the mounting portion 23B, a through hole 65 is provided in the substrate 230 instead of the through holes 24, 25. The through hole 65 surrounds the center of the substrate 230 in a plan view and penetrates the substrate 230 in the left-right direction.

[0091] Ribs 61A, 61B, 61C, and 61D are provided on the substrate 230. The ribs 61A, 61B, 61C, and 61D each extend rightward from the right surface of the substrate 230. One end of the rib 61A is connected to the periphery of the through-hole 65 on the Z- direction side and extends upward. One end of the rib 61B is connected to the periphery of the through-hole 65 on the Z+ direction side and extends downward. One end of the rib 61C is connected to one end of the rib 61B and extends forward. One end of the rib 61D is connected to one end of the rib 61A and extends rearward.

[0092] The mounting portion 23B has a hook portion 60 in place of the hook 27 and the arc-shaped rib 26. The hook portion 60 has a cylindrical portion 63 and claw portions 671, 672. The cylindrical portion 63 is circumscribed by one end of the rib 61A and one end of the rib 61B, and extends leftward from the connection portion between one end of the rib 61A and one end of the rib 61B. A pair of grooves 66 are formed in the left end of the outer wall of the cylindrical portion 63. The pair of grooves 66 are aligned with each other in the Z direction. The pair of grooves 66 extend from the left end of the cylindrical portion 63 to the center of the cylindrical portion 63 in the left-right direction.

[0093] The claw portions 671 and 672 are provided on the left end of the cylindrical portion 63. The claw portion 671 and the claw portion 672 are aligned with each other in the Y direction, and the claw portion 671 is provided on the Y+ direction side of the claw portion 672. The claw portion 671 and the claw portion 672 are configured symmetrically in the Y direction.

[0094] The claw portion 671 has a configuration corresponding to the claw portion 272 of the above embodiment. The claw portion 671 includes end faces 6711, 6712, 6713, and 6714. The end faces 6711, 6712, 6713, and 6714 have configurations corresponding to the end faces 2721, 2722, 2723, and 2724 of the above embodiment, respectively. The claw portion 672 includes end faces 6721, 6722, 6723, and 6724. The end faces 6721, 6722, 6723, and 6724 are configured symmetrically in the Y direction to the end faces 6711, 6712, 6713, and 6714, respectively.

[0095] The first support member 40B differs from the first support member 40A in that a support hole 82 is provided in the support plate 41 instead of the support hole 42. The support hole 82 is defined by an annular inner circumferential surface 823. Guide surfaces 821, 822 are connected to the inner circumferential surface 823. The guide surface 821 is connected to the left end of the inner circumferential surface 823, and inclines in a direction away from the center of the support plate 41 as it moves leftward. The guide surface 822 is connected to the right end of the inner circumferential surface 823, and inclines in a direction away from the center of the support plate 41 as it moves rightward.

[0096] Of surface A 411, a portion that is on the outside of support hole 82 and on the inside of protrusion 43 is referred to as engaging surface A 811. Of surface B 412, a portion that is on the outside of support hole 82 and on the inside of protrusion 43 is referred to as engaging surface B 812. The engaging surface A 811 and the engaging surface B 812 are perpendicular to each other in the left-right direction.

[0097] A flow of attaching and detaching the first support member 40B to the mounting part 23B will be briefly described. When attaching the first support member 40B to the mounting part 23B, the user brings the first support member 40B close to the mounting part 23B from left to right in the first A position or the first B position.

[0098] The end faces 6714 and 6724 come into contact with the guide surface 822 or the guide surface 821. When the user moves the first support member 40B to the right, the end face 3724 slides on the guide surface 822 or the guide surface 821, and the left end of the cylindrical portion 63 bends toward the inside of the support hole 82. The claw portion 671 moves in the Y- direction, and the claw portion 672 moves in the Y+ direction. The end faces 6713 and 6723 are disposed inside the support hole 52, and the claw portions 671 and 672 pass through the support hole 82. The claw portions 671 and 672 pass through the support hole 82 and are disposed to the left of the support hole 82. The cylindrical portion 63 is no longer bent due to elastic deformation, and the claw portion 671 moves in the Y+ direction, and the claw portion 672 moves in the Y- direction. The attachment of the first support member 40B to the attachment portion 23B is completed.

[0099] When removing the first support member 40B from the mounting part 23B, the first support member 40B is moved to the left. The end of the end face 6712 in the Y+ direction slides on the guide surface 821 or the guide surface 822, and the left end of the cylindrical part 63 is bent toward the inside of the support hole 82. When the user moves the first support member 40B to the left in this state, the end faces 6713 and 6723 are disposed inside the support hole 52, and the claws 671 and 672 are inserted through the support hole 82. The claws 671 and 672 are removed from the support hole 82, and the removal of the first support member 40B from the mounting part 23B is completed. In this case, the end face 6712 comes into contact with the guide surface 821 or the guide surface 822 during the process of removing the first support member 40B from the mounting part 23B. As a result, the left end of the cylindrical part 63 is bent, so that the user can easily remove the first support member 40B from the mounting part 23B. Therefore, the modified printer 1 contributes to easily removing the first support member 40B from the mounting portion 23B. Although not shown, the modified second adjustment member 30A and the second support member 50A may be configured symmetrically to the first adjustment member 20B and the first support member 40B.

[0100] Other modified examples will be described. In the above embodiment, the second adjustment member 30A moves in the left-right direction following the left-right movement of the first adjustment member 20A. In contrast, the first adjustment member 20A and the second adjustment member 30A may move in the left-right direction independently of each other. The first adjustment member 20A and the second adjustment member 30A may be capable of adjusting the distance between them in the left-right direction. For example, either the first adjustment member 20A or the second adjustment member 30A may be fixed to the support base 11, and the other may be movable in the left-right direction.

[0101] The support plate 41 may have any configuration as long as it includes the A side 411 and the B side 412 and is provided with the support hole 42, and the configuration may be appropriately changed. The support plate 41 may have, for example, a rectangular plate shape in side view instead of a circular plate shape in side view. The support plate 51 may have any configuration as long as it includes the A side 511 and the B side 512 and is provided with the support hole 52, and the configuration may be appropriately changed. The support plates 41 and 51 may have different shapes from each other.

[0102] In the above embodiment, the protrusion 45 is an annular rib, but may be, for example, a plurality of protrusions protruding from the A surface 411. In this case, the plurality of protrusions can be fitted inside the cylinder N1 to support the roll M1. The protrusion 46 may be, for example, a plurality of protrusions protruding from the B surface 412. The protrusion 55 may be, for example, a plurality of protrusions protruding from the A surface 511. The protrusion 56 may be, for example, a plurality of protrusions protruding from the B surface 512. The centers of the protrusions 45, 46, 55, and 56 do not have to overlap with the centers of the support plates 41 and 51 in a side view. The protrusion 45 may protrude from the A surface 411 and may be inclined toward the center of the protrusion 45. The protrusion 46 may protrude from the B surface 412 and may be inclined toward the center of the protrusion 46. The protrusion 55 may protrude from the A surface 511 and may be inclined toward the center of the protrusion 55. The protrusion 56 may protrude from the B surface 512 and may be inclined toward the center of the protrusion 56.

[0103] In the above embodiment, the levers 28, 38 are pushed upward from below to attach or detach the first support member 40A and the second support member 50A. In contrast, the levers 28, 38 may be pushed downward from above to attach or detach the first support member 40A and the second support member 50A. In this case, the mounting portions 23A, 33A have a vertically symmetrical configuration to that of the above embodiment. The lever 28 does not need to have multiple ribs 282. The extension portion 281 may have only one rib 282. The lever 38 does not need to have multiple ribs 382. The extension portion 381 may have only one rib 382.

[0104] In the above embodiment, the hook 27 and the lever 28 are disposed at the specific portion 252 of the through hole 25, but the hook 27 and the lever 28 may be disposed away from the periphery of the through hole 25. The hook 37 and the lever 38 are disposed at the specific portion 352 of the through hole 35, but the hook 37 and the lever 38 may be disposed away from the periphery of the through hole 35. The mounting portions 23A, 33A do not have to have the levers 28, 38 (see FIG. 11).

[0105] In the above embodiment, the right end of the extension portion 281 is at the same position as the right end of the annular rib 232 in the left-right direction, but the right end of the extension portion 281 may be located to the left of the right end of the annular rib 232 in the left-right direction. In this case, the lever 28 does not protrude to the right of the annular rib 232, so that the lever 28 is prevented from being operated unintentionally by the user. The right end of the extension portion 281 may be located to the right of the right end of the annular rib 232 in the left-right direction. The left end of the extension portion 381 may be located to the right of the left end of the annular rib 332 in the left-right direction. The left end of the extension portion 381 may be located to the left of the left end of the annular rib 332 in the left-right direction. The mounting portions 23A and 33A may not have the annular ribs 232 and 332.

[0106] In the hook 27, the end surface 2722 may be inclined in the left-right direction. In the hook 37, the end surface 3722 may be inclined in the left-right direction. At least one of the engagement A surface 4111 and the engagement B surface 4121 may be inclined in the left-right direction. At least one of the engagement A surface 5111 and the engagement B surface 5121 may be inclined in the left-right direction. The protrusion 43 may protrude from the periphery of the support hole 42. In this case, the engagement A surface 4111 is not included in the A surface 411. The protrusion 44 may protrude from the periphery of the support hole 42. In this case, the engagement B surface 4121 is not included in the B surface 412. The protrusion 53 may protrude from the periphery of the support hole 52. In this case, the engagement A surface 5111 is not included in the A surface 511. The protrusion 54 may protrude from the periphery of the support hole 52. In this case, the engagement B surface 5121 is not included in the B surface 512.

[0107] Hook 27 may not include end surface 2724. In this case, the upper end of end surface 2721 connects with the left end of end surface 2723. End surface 2724 only needs to extend toward the right as it goes upward, and may be curved, bulging upward, or curved, concave downward. Hook 37 may not include end surface 3724. In this case, the upper end of end surface 3721 connects with the right end of end surface 3723. End surface 3724 only needs to extend toward the left as it goes upward, and may be curved, bulging upward, or curved, concave downward.

[0108] The roll M may be a so-called coreless type in which the tape P is wound so as to form a hole in the center. The number of the hooks 27 and the levers 28 is not limited to one, and may be provided in a plurality on the mounting part 23A. The number of the hooks 37 and the levers 38 is not limited to one, and may be provided in a plurality on the mounting part 33A. The left end of the arc-shaped rib 26 may be provided with a claw portion extending leftward and downward. The right end of the arc-shaped rib 36 may be provided with a claw portion extending rightward and downward. The first support member 40A may not have at least one of the protruding part 43 and the protruding part 44. The protruding parts 43 and 44 may not be annular in side view, and may be, for example, a plurality of protrusions. The second support member 50A may not have at least one of the protruding part 53 and the protruding part 54. The protruding parts 53 and 54 may not be annular in side view, and may be, for example, a plurality of protrusions. [Explanation of symbols]

[0109] 1. Printer 20A First adjustment member 25, 35 through hole 27, 37 Hook 28, 38 Lever 30A Second adjustment member 40A First Support Member 41, 51 Support plate 42, 52 support hole 50A Second Support Member 232, 332 Annular rib 252, 352 specific part 271, 371 extension part 272, 372 Claw part 411, 511 A side 412, 412 B side 2721, 3721 end face 2724, 3724 end face 4111, 5111 Engagement side A 4121, 5121 Engagement B side

Claims

1. In a printer that prints on a medium, a housing having a storage space that opens to one side in a first direction and stores a roll of the medium wound around a cylinder in a state where the cylinder extends in a second direction perpendicular to the first direction; a first adjustment member and a second adjustment member provided in the accommodation space, the first adjustment member and the second adjustment member being capable of changing a distance therebetween in the second direction; A first support member attached to the first adjustment member; A second support member attached to the second adjustment member; Equipped with The first adjustment member is provided with a first hook protruding in a first approach direction toward the second adjustment member in the second direction, The second adjustment member is provided with a second hook protruding in a second approach direction toward the first adjustment member in the second direction, The first support member is a first support plate including a first A surface and a first B surface facing opposite to each other in the second direction, the first support plate being provided with a first support hole penetrating from the first A surface to the first B surface; a first protruding portion A protruding from the first A surface of the first support plate at a radially outer side of the first support hole and having a first outer diameter; a first protruding portion B protruding from the first B surface of the first support plate radially outside the first protruding portion A and having a second outer diameter larger than the first outer diameter; having the first support member is attached to the first adjustment member by the first hook engaging with the first support plate through the first support hole, When the first support member is attached to the first adjustment member in a first A orientation in which the first A surface of the first support plate faces the second adjustment member, the first protrusion A fits into the cylinder, When the first support member is attached to the first adjustment member in a first B position in which the first B surface of the first support plate faces the second adjustment member, the first protrusion B fits into the cylinder, The second support member is A second support plate including a second A surface and a second B surface facing opposite each other in the second direction, and having a second support hole extending from the second A surface to the second B surface; a second protruding portion A protruding from the second A surface of the second support plate at a radially outer side of the second support hole and having the first outer diameter; a second protruding portion B protruding from the second B surface of the second support plate at a radially outer side of the second protruding portion A and having the second outer diameter; having the second support member is attached to the second adjustment member by the second hook engaging with the second support plate through the second support hole, When the second support member is attached to the second adjustment member in a second A posture in which the second A surface of the second support plate faces the first adjustment member, the second protrusion A fits into the cylinder, In a state in which the second support member is attached to the second adjustment member in a second B position in which the second B surface of the second support plate faces the first adjustment member, the second protrusion B fits into the cylinder. A printer characterized by:

2. The first adjustment member is provided with a first through hole penetrating in the second direction, the first hook is disposed at a first specific portion that is a part of a periphery of the first through hole; the first adjustment member is provided with a first lever that is connected to the first hook at the first specific portion of the first adjustment member and protrudes from the first specific portion in a first receding direction opposite to the first approaching direction in the second direction, The second adjustment member is provided with a second through hole penetrating in the second direction, the second hook is disposed at a second specific portion that is a part of a periphery of the second through hole, The second adjustment member is provided with a second lever that is connected to the second hook at the second specific portion of the second adjustment member and protrudes from the second specific portion in a second receding direction opposite to the second approaching direction in the second direction.

2. The printer according to claim 1.

3. the first adjustment member has a first rib that protrudes in the first separation direction and surrounds the first through hole when viewed from the second direction, an end of the first lever in the first spacing direction is positioned in the first spacing direction away from an end of the first rib in the first spacing direction; the second adjustment member has a second rib that protrudes in the second separation direction and surrounds the second through hole when viewed from the second direction, An end of the second lever in the second spacing direction is positioned further in the second spacing direction than an end of the second rib in the second spacing direction.

3. The printer according to claim 2.

4. The first hook is A first extension portion extending in the first approach direction in the second direction; a first claw portion protruding from an end of the first extension portion in the first approach direction in a protruding direction intersecting with the second direction; having The first claw portion includes a first engagement surface A that faces the first separation direction in the second direction and extends perpendicular to the second direction, the first support plate includes a pair of first engagement surfaces B provided around the first support hole on the first A surface and the first B surface, respectively, and extending perpendicular to the second direction; When the first support member is attached to the first adjustment member in the first A position, the first engagement surface A and the first engagement surface B of the first A position engage with each other, In a state in which the first support member is attached to the first adjustment member in the first B posture, the first engagement surface A and the first engagement surface B of the first B posture engage with each other, The second hook is A second extension portion extending in the second approach direction in the second direction; a second claw portion protruding in the protruding direction from an end of the second extension portion in the second approach direction; having The second claw portion includes a second engagement surface A that faces the second separation direction in the second direction and extends perpendicular to the second direction, the second support plate includes a pair of second engagement surfaces B provided around the second support hole on each of the second A surface and the second B surface and extending perpendicular to the second direction; In a state in which the second support member is attached to the second adjustment member in the second A posture, the second engagement surface A and the second engagement surface B of the second A posture engage with each other, In a state in which the second support member is attached to the second adjustment member in the second B position, the second engagement surface A and the second engagement surface B of the second B position engage with each other.

4. The printer according to claim 2 or 3.

5. The first hook is A first extension portion extending in the first approach direction in the second direction; a first claw portion protruding from an end of the first extension portion in the first approach direction in a protruding direction intersecting with the second direction; having The first claw portion includes a first guide surface A that is provided at a tip end of the first claw portion in the protruding direction and extends in the opposite direction to the first approach direction as it approaches the protruding direction, The second hook is A second extension portion extending in the second approach direction in the second direction; a second claw portion protruding in the protruding direction from an end of the second extension portion in the second approach direction; having The second claw portion includes a second guide surface A that is a surface provided at a tip of the second claw portion in the protruding direction and extends in the opposite direction to the second approach direction as it approaches the protruding direction.

2. The printer according to claim 1.

6. The first hook is A first extension portion extending in the first approach direction in the second direction; a first claw portion protruding from an end of the first extension portion in the first approach direction in a protruding direction intersecting with the second direction; having the first support plate includes a pair of first guide surfaces B provided around the first support hole on each of the first A surface and the first B surface, the pair of first guide surfaces B extending in directions approaching each other in the second direction toward the first support hole, When the first support member is attached to the first adjustment member in the first A posture, the first claw portion and the first guide surface B of the first A surface face each other in the second direction, When the first support member is attached to the first adjustment member in the first B position, the first claw portion and the first guide surface B of the first B surface face each other in the second direction, The second hook is A second extension portion extending in the second approach direction in the second direction; a second claw portion protruding in the protruding direction from an end of the second extension portion in the second approach direction; having the second support plate includes a pair of second guide surfaces B provided around the second support hole on each of the second A surface and the second B surface, the pair of second guide surfaces B extending in directions approaching each other in the second direction toward the second support hole, When the second support member is attached to the second adjustment member in the second A posture, the second claw portion and the second guide surface B of the second A surface face each other in the second direction, In a state in which the second support member is attached to the second adjustment member in the second B position, the second claw portion and the second guide surface B of the second B surface face each other in the second direction.

2. The printer according to claim 1.

Images