Printer

Abstract

To provide a printer contributing to suppression of breakage of a panel.SOLUTION: An opening 7 is provided on a bottom wall 60 of a cover 6. The bottom wall 60 has a recess, a tongue piece 63, and an opening 75. The recess is a part recessed leftward from a left edge 72 of the opening 7. The tongue piece 63 is provided at a right edge of an opening edge defining the opening 7 and extends upward from the bottom wall 60. The opening 75 is recessed rightward from the right edge and opens the tongue piece 63 in a horizontal direction. A panel 8 is engaged in the opening 7. The panel 8 has a plate 80, a first projection, and a second projection 82. The plate 80 crosses and extends in the vertical direction. The first projection projects leftward from a left end of the plate 80 and is fitted into the recess. The second projection 82 includes protrusions 821, 822. The protrusion 821 protrudes rightward from a right end of the plate 80. The protrusion 822 protrudes upward from the protrusion part 821. The second projection 82 is fitted into the opening 75.SELECTED DRAWING: Figure 12

Description

[Technical Field]

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

[0002] The printing device described in Patent Document 1 includes a main body cover. The main body cover houses a thermal head that prints on the tape. The main body cover is provided with a window. A transparent plate-shaped panel is fitted into the window. A user can see inside the main body cover through the window. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2023-48198 Summary of the Invention [Problem to be solved by the invention]

[0004] In the printing device described above, the panel is a separate component from the main body cover. Therefore, it is considered that the panel is attached to the main body cover by fitting into the window. When the panel is fitted into the window, depending on the fitting structure between the cassette cover and the window, there is a possibility that the panel may be deformed or damaged.

[0005] An object of the present invention is to provide a printer that contributes to reducing damage to the panel. [Means for solving the problem]

[0006] A printer according to one aspect of the present invention includes a housing having a first wall extending intersecting a vertical direction, a printing unit housed in the housing and configured to print on a medium, and a panel fitted into an opening provided in the first wall, the opening being defined by an opening edge provided in the housing and opening the first wall in the vertical direction, the opening edge including a first opening edge extending in a front-rear direction intersecting the vertical direction, and a second opening edge extending in the front-rear direction and disposed to the right of the first opening edge in one of left and right directions intersecting the vertical direction and the front-rear direction, and the first wall is spaced apart from the first opening edge by a distance extending from the right the panel has a first recess recessed to the left opposite the first recess, a first tongue extending upward in one of the vertical directions from the second opening edge, and a second recess provided on the first tongue recessed from the second opening edge to the right, and the panel has a plate including a left end extending in the front-to-rear direction and a right end extending in the front-to-rear direction and positioned to the right of the left end, a first convex portion protruding leftward from the left end and fitting into the first recess, a first protruding portion protruding rightward from the right end, and a second protruding portion protruding upward from the first protruding portion and fitting into the second recess.

[0007] According to the above aspect, when the second protrusion fits into the second recess from above, the second protrusion contacts the first tongue. At this time, the first tongue and the second recess deform to the right due to the pressing force from the second protrusion. Here, the first wall has a first tongue extending upward. Because the second protrusion of the second protrusion extends upward from the first protrusion, the second recess extends vertically, and the first tongue also extends vertically. Therefore, the first tongue is cantilevered from the first wall. Therefore, the first tongue and the second recess easily elastically deform to the right. When the second recess and the second protrusion fit together and the pressing force from the second protrusion is removed, the first tongue and the second recess, which were deformed by the pressing force, return to their original state. Because the first tongue wall and the second recess elastically deform in this way, the printer contributes to reducing damage to the panel.

[0008] In the printer, the housing may include a second wall in which a storage section for storing the medium is provided, and the first wall may cover the storage section from below, opposite the above. This contributes to making it easier for a user to visually check the status of the storage section through a panel fitted into the opening of the printer.

[0009] In the printer, the storage section may store a cassette that stores the media, and the first tab may be positioned so as not to overlap the cassette when viewed from the top-bottom direction. This reduces the likelihood of interference between the first tab extending upward from the first wall and the cassette stored in the storage section. This contributes to reducing the vertical size of the entire printer.

[0010] In the printer, the first wall is positioned at a position offset from the first tongue in the front-to-rear direction and has a second tongue extending upward from the second opening edge and a third recess provided on the second tongue and recessed to the right from the second opening edge, the panel includes a third protruding portion protruding to the right from the right end and a fourth protruding portion protruding upward from the third protruding portion, and has a third convex portion that fits into the third recess, and when viewed in the up-down direction, the left-right length of a portion where the second convex portion overlaps with the second recess and the left-right length of a portion where the third convex portion overlaps with the third recess may be smaller than the left-right length of a portion where the first convex portion overlaps with the first recess. In the printer, because the second convex portion fits into the second recess and the third convex portion fits into the third recess, the panel is more firmly fitted into the first wall than when only the second convex portion fits into the second recess. Here, the left-right length of the portion where the second protrusion overlaps the second recess and the left-right length of the portion where the third protrusion overlaps the third recess are smaller than the left-right length of the portion where the first protrusion overlaps the first recess, so the operator can fit the panel into the first wall with less force after fitting the first protrusion into the first recess. Thus, the printer contributes to the panel being firmly fitted into the first wall and the operator being able to fit the panel into the first wall with less force.

[0011] In the printer, the first tongue may have a size that decreases in the left-right direction as it extends upward. This makes it difficult for the base end of the cantilever-shaped first tongue to deform in the left-right direction, and makes it easier for the tip end of the first tongue to bend in the left-right direction. This contributes to making it easier for an operator to fit the panel into the first wall.

[0012] In the printer, a lower portion of the right end face of the first tongue may be a curved surface concave to the left when viewed from the front-to-rear direction. This makes it less likely that the base end of the first tongue will deform in the left-to-right direction and more likely that the tip end of the first tongue will bend in the left-to-right direction compared to when the lower portion of the right end face of the first tongue is not concave to the left. This contributes to making it easier for an operator to fit a panel into the first wall.

[0013] In the printer, with the first protrusion fitted into the first recess, the second protrusion may contact the left end surface of the first tongue from above, and then the second protrusion may fit into the second recess. In this way, before the second protrusion fits into the second recess, a pressing force toward the right is applied from the second protrusion to the first tongue, making the first tongue and the second recess more likely to bend to the right. Therefore, the printer contributes to making it easier for an operator to fit a panel into the first wall.

[0014] In the printer, the left end surface of the first tongue may be inclined leftward as it approaches downward, opposite to the upward direction. In this way, before the second protrusion is fitted into the second recess, the second protrusion slides along the left end surface of the first tongue. At this time, a pressing force toward the right is applied to the first tongue. This contributes to making it easier for the operator to fit the panel into the first wall. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 2 is a perspective view of the printer 1 as seen from above the front right. [Figure 2] FIG. 2 is an exploded perspective view of the printer 1 with the cassette 9 removed, as viewed from the lower right front. [Figure 3] FIG. 2 is a perspective view of the lower housing 3 as seen from the upper right front. [Figure 4] FIG. [Figure 5] 10 is a perspective view of the middle housing 4 as seen from the lower right front. [Figure 6] FIG. 2 is a bottom view of the intermediate housing 4. [Figure 7] 10 is a perspective view of the cover 6 with the panel 8 fitted therein, as seen from above the left front. [Figure 8] FIG. 2 is a perspective view of the panel 8 as seen from above and rear right. [Figure 9] FIG. [Figure 10] 10 is a perspective view of the cover 6 before the panel 8 is fitted, as seen from above the left front. [Figure 11] FIG. 2 is a plan view of the cover 6 with the panel 8 fitted therein. [Figure 12] 12 is a cross-sectional view of the printer 1 taken along the line XII-XII in FIG. 11. [Figure 13] 13 is a cross-sectional view of the printer 1 taken along the line XIII-XIII in FIG. 11. [Figure 14] FIG. 2 is an exploded perspective view of the printer 1 as seen from the lower left front. [Figure 15] FIG. 10 is a diagram illustrating a case where an extension portion 473 is provided instead. DETAILED DESCRIPTION OF THE INVENTION

[0016] An embodiment of the present invention will be described below with reference to the drawings. The drawings are used to explain technical features that can be adopted by the present invention. 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.

[0017] The configuration of the printer 1 will be described below. In the following, the upper left, lower right, lower left, upper right, upper, and lower in Fig. 1 will be referred to as the left, right, front, rear, upper, and lower of the printer 1. Note that in this embodiment, the up-and-down direction is used for convenience of explanation and is not limited to the vertical direction.

[0018] The printer 1 shown in Figure 1 is a label printer that can create labels by printing images on tape (not shown) stored in a cassette 9 (see Figure 14). The printer 1 has a housing 2, a printing unit 21, and a panel 8. The housing 2 has a substantially rectangular parallelepiped shape and is made of, for example, ABS resin.

[0019] The housing 2 is composed of a lower housing 3, a middle housing 4, an upper housing 5, and a cover 6. The lower housing 3, the middle housing 4, and the cover 6 are all roughly rectangular parallelepiped shapes. The upper housing 5 has a rectangular wall in a plan view. The housing 2 is composed of the cover 6, the lower housing 3, the middle housing 4, and the upper housing 5 stacked in this order from the bottom up.

[0020] The structure of the lower housing 3 will be described with reference to Figures 2 to 4. As shown in Figure 2, the lower housing 3 has a bottom wall 31 and a peripheral wall 32. The bottom wall 31 extends perpendicular to the up-down direction. The peripheral wall 32 extends upward from the peripheral edge of the bottom wall 31. A storage section 38 is provided in the bottom wall 31. The storage section 38 is located rearward of the center of the bottom wall 31 in the front-to-rear direction. The storage section 38 is a recessed portion recessed upward from the bottom wall 31. A cassette 9 is attached to the storage section 38 (see Figure 14).

[0021] The printing unit 21 is provided in the storage unit 38. In this embodiment, the printing unit 21 is a thermal head that prints using heat. The printing unit 21 has multiple heating elements (not shown). The printing unit 21 prints on the tape by selectively heating the multiple heating elements.

[0022] A transport motor (not shown) is housed in the lower housing 3. The transport motor transports the tape housed in the cassette 9 towards the printing unit 21. The transport motor is equipped with an encoder. The encoder detects the rotation position of the rotary shaft of the transport motor. The printer 1 controls the drive of the transport motor based on the rotation position of the rotary shaft of the transport motor indicated by the encoder.

[0023] The housing 2 is provided with an attachment portion 22. The attachment portion 22 is a portion where a strap (not shown) for hanging the printer 1 is attached to the housing 2. The attachment portion 22 is composed of a lower attachment portion 30 of the lower housing 3 and an upper attachment portion 40 of the middle housing 4.

[0024] As shown in Figures 3 and 4, the lower mounting portion 30 is provided on the peripheral wall 32. The lower mounting portion 30 has a wall portion 34, a bottom portion 35, an extension portion 36, and a cylindrical portion 37. The wall portion 34 is a portion of the peripheral wall 32 whose upper right front end is recessed toward the rear left. The bottom portion 35 extends from the lower end of the wall portion 34 to the right front end of the lower housing 3. The bottom portion 35 extends perpendicular to the vertical direction. The bottom portion 35 is located above the vertical center of the peripheral wall 32.

[0025] The extension portion 36 protrudes upward from the right front end of the bottom portion 35. The extension portion 36 has a generally triangular prism shape in a plan view. The extension portion 36 is located inside the bottom portion 35 in a plan view (see Figure 4). The upper end of the extension portion 36 and the upper end of the wall portion 34 are located at approximately the same position as the upper end of the peripheral wall 32. The cylindrical portion 37 extends upward from the extension portion 36. The cylindrical portion 37 has an axis that extends in the vertical direction. The cylindrical portion 37 is located inside the extension portion 36 in a plan view (see Figure 4). The upper end of the cylindrical portion 37 is located higher than the upper end of the peripheral wall 32.

[0026] The structure of the inner casing 4 will be described with reference to Figures 5 and 6. The inner casing 4 has a top wall 41 and a peripheral wall 42. The top wall 41 extends perpendicular to the up-down direction. The peripheral wall 42 extends downward from the peripheral edge of the top wall 41.

[0027] The upper mounting portion 40 is provided on the peripheral wall 42. The upper mounting portion 40 has a wall portion 43, a ceiling portion 44, a hole portion 45, and a pair of ribs 46. The wall portion 43 is a portion of the peripheral wall 42 where the lower right front end is recessed to the rear left. The lower end of the wall portion 43 is at approximately the same position as the lower end of the peripheral wall 42. The ceiling portion 44 extends from the upper end of the wall portion 43 to the front right end of the lower housing 3. The ceiling portion 44 extends perpendicular to the vertical direction. The ceiling portion 44 is located below the vertical center of the peripheral wall 42.

[0028] The hole 45 is provided at the right front end of the ceiling portion 44. The hole 45 is a recessed hole in the underside of the ceiling portion 44. The diameter of the hole 45 is approximately the same as the diameter of the cylindrical portion 37 (see FIG. 3). A pair of ribs 46 extend downward from the right front end of the ceiling portion 44. One of the ribs 46 extends from the right rear of the hole 45 to the right rear along the periphery of the middle housing 4. The other rib 46 extends from the left front of the hole 45 to the left front along the periphery of the middle housing 4.

[0029] As shown in Fig. 2, when the lower housing 3 and the middle housing 4 are overlapped, the peripheral wall 32 and the peripheral wall 42 come into contact with each other. The cylindrical portion 37 is inserted into the hole 45, and the wall portion 34 and the wall portion 43 come into contact with each other. One rib 46 is located to the rear right of the extension portion 36, and the other rib 46 is located to the front left of the extension portion 36. The attachment portion 22 is a substantially U-shaped space in a plan view, surrounded by the wall portion 34, the bottom portion 35, the extension portion 36, the wall portion 43, and the ceiling portion 44. The strap is inserted into the attachment portion 22 and attached to the housing 2.

[0030] There is a small gap between the upper end of the extension portion 36 and the bottom surface of the ceiling portion 44. When the strap string inserted into the mounting portion 22 is pulled to the left front or right rear, there is a possibility that the strap string will get caught in the gap between the extension portion 36 and the ceiling portion 44. In the printer 1, a pair of ribs 46 protrude downward from the ceiling portion 44 and fill the gap between the extension portion 36 and the ceiling portion 44. In this embodiment, the gap between the ribs 46 and the extension portion 36 is approximately 0.2 millimeters, which is sufficiently small compared to the diameter of the strap string (approximately 1.0 millimeters). Therefore, when the strap string inserted into the mounting portion 22 is pulled to the left front or right rear, the pair of ribs 46 in the printer 1 prevent the strap string from getting caught in the gap between the extension portion 36 and the ceiling portion 44.

[0031] As shown in Figures 5 and 6, the top wall 41 is provided with an opening 410, a C-shaped tube portion 48, a cylindrical portion 47, and an extension portion 471. The opening 410 houses an electronic board (not shown) that controls the printer 1. The opening 410 is defined by a peripheral edge 411. The peripheral edge 411 has a generally rectangular shape when viewed from the bottom (see Figure 6). The left end of the peripheral edge 411 is located to the left of the center in the left-right direction. The right end of the peripheral edge 411 is located to the right of the center in the left-right direction. The front end of the peripheral edge 411 is located forward of the center in the front-to-rear direction. The rear end of the peripheral edge 411 is located rearward of the center in the front-to-rear direction.

[0032] The C-shaped tube portion 48 is provided at the left end of the peripheral edge 411. The C-shaped tube portion 48 extends downward from the top wall 41. The C-shaped tube portion 48 is substantially cylindrical with an axis extending in the vertical direction. A hole 481 and a notch 482 are provided in the C-shaped tube portion 48. The hole 481 opens the C-shaped tube portion 48 in the vertical direction. The notch 482 cuts out the C-shaped tube portion 48 from the left rear end of the C-shaped tube portion 48 toward the hole 481. The notch 482 is provided across the entire area of the C-shaped tube portion 48 in the vertical direction. Therefore, the C-shaped tube portion 48 is C-shaped when viewed from the bottom.

[0033] The cylindrical portion 47 is provided to the rear left of the C-shaped tube portion 48. The cylindrical portion 47 extends downward from the top wall 41. The lower end of the cylindrical portion 47 is at approximately the same position as the lower end of the C-shaped tube portion 48. The extending portion 471 is plate-shaped and extends downward from the top wall 41. The extending portion 471 extends to the front right in a bottom view. More specifically, the extending portion 471 extends from the front right end of the cylindrical portion 47 toward the center of the hole 481. The front right end of the extending portion 471 is located to the rear left of the C-shaped tube portion 48. The extending direction of the extending portion 471 in a plan view is called direction A. The direction perpendicular to direction A in a plan view is called direction B.

[0034] A protrusion 472 is provided at the end of the extension portion 471 in the A direction. The protrusion 472 is a rectangular column extending downward from the top wall 41. The protrusion 472 is rectangular in shape extending in the A direction and the B direction in a plan view (see FIG. 6). The size of the protrusion 472 in the B direction is larger than the size of the extension portion 471 in the B direction. The protrusion 472 is slightly spaced left and rear from the C-shaped tube portion 48. A gap 49 is provided between the protrusion 472 and the C-shaped tube portion 48. The gap 49 is approximately U-shaped in a plan view.

[0035] The electronic board housed in the opening 410 and the encoder of the conveyance motor housed in the lower housing 3 are connected by a signal line (not shown). The signal line passes through a gap 49 in the middle housing 4. The size of the gap 49 is determined by the distance between the protrusion 472 and the C-shaped cylinder portion 48. The size of the gap 49 is approximately the same as the thickness of the signal line. Because the gap 49 is approximately U-shaped in a plan view, the signal line passing through the gap 49 is held by the protrusion 472 and the C-shaped cylinder portion 48 and is unlikely to come off the gap 49.

[0036] 15, an extension portion 473 may be provided on the top wall 41 instead of the extension portion 471. The extension portion 473 differs from the extension portion 471 in that the extension portion 473 does not have a protrusion 472. The extension portion 473 extends to the vicinity of the C-shaped tube portion 48. A gap 490 is provided between the extension portion 473 and the C-shaped tube portion 48. The size of the gap 490 is determined by the distance between the A-direction end of the extension portion 471 and the C-shaped tube portion 48. If the size of the gap 490 is approximately the same as the thickness of the signal line, the distance between the A-direction end of the extension portion 473 and the center of the hole 481 is smaller than the distance between the A-direction end of the protrusion 472 and the center of the hole 481. The inner housing 4 is formed, for example, by injection molding. If the distance between the A-direction end of the extension portion 473 and the hole 481 is short, the thickness W2 of the portion of the injection mold where the gap 490 is formed becomes thin. Therefore, there is a possibility that the molding of the inner casing 4 is not good.

[0037] 6, in the printer 1, a protrusion 472 is provided at the end in the A direction of the extension portion 471. The size in the B direction of the protrusion 472 is larger than the size in the B direction of the extension portion 471, so the distance from the end in the A direction of the protrusion 472 to the hole 481 can be increased. Therefore, the thickness W1 of the part of the mold that forms the gap 49 is increased, and the inner casing 4 can be well formed in the printer 1.

[0038] The upper housing 5 will be described with reference to FIG. 1. The upper housing 5 is provided with a display unit 28 and an input unit 29. The display unit 28 displays various information. The display unit 28 is, for example, a liquid crystal display. The input unit 29 accepts input of various information and instructions to the printer 1. The display unit 28 is, for example, a rubber key with multiple key tops. When the middle housing 4 and the upper housing 5 are overlapped, the periphery of the upper housing 5 comes into contact with the peripheral wall 42.

[0039] 7 to 13, the structure of the cover 6 and the panel 8 assembled to the cover 6 will be described. As shown in FIG. 7, the cover 6 has a bottom wall 60. The bottom wall 60 covers the storage section 38 from below. The bottom wall 60 is provided with an opening 7 that opens the bottom wall 60 in the vertical direction. The panel 8 is fitted into the opening 7. The panel 8 is transparent and is made of, for example, acrylic resin. The bottom wall 60 and the opening 7 will be described later.

[0040] As shown in Figures 8 and 9, the panel 8 has a plate 80, a first protrusion 81, a second protrusion 82, and a third protrusion 83. The plate 80 is rectangular and perpendicular to the up-down direction, and extends longer in the front-to-rear direction than in the left-to-right direction. The first protrusion 81 protrudes leftward from a left end 801 (see Figure 8) of the plate 80. The first protrusion 81 is plate-shaped and perpendicular to the up-down direction, and extends longer in the front-to-rear direction than in the left-to-right direction. The first protrusion 81 is located at approximately the same position as the center of the plate 80 in the front-to-rear direction.

[0041] The second convex portion 82 has protrusions 821, 822. The protrusion 821 protrudes rightward from the right end 802 (see Figure 8) of the plate 80. The protrusion 821 is plate-shaped and perpendicular to the up-down direction, extending further in the front-to-rear direction than in the left-to-right direction. The protrusion 821 is located rearward of the first convex portion 81 in the front-to-rear direction. The protrusion 822 protrudes upward from the upper right end of the protrusion 821. The protrusion 821 extends perpendicular to the up-to-down direction. The second convex portion 82 is L-shaped in rear view.

[0042] The third convex portion 83 has the same configuration as the second convex portion 82 except for its position relative to the plate 80. The third convex portion 83 has protrusions 831, 832. The protrusion 831 is located further forward than the first convex portion 81 in the front-to-rear direction. The protrusion 831 protrudes rightward from the right end 802 of the plate 80 (see Figure 8). The protrusion 831 is perpendicular to the up-down direction and has a plate shape that extends more in the front-to-rear direction than in the left-to-right direction. The protrusion 832 protrudes upward from the upper right end of the protrusion 831. The protrusion 831 extends perpendicular to the up-to-down direction. The third convex portion 83 is L-shaped in rear view. The first convex portion 81 is staggered relative to the second convex portion 82 and the third convex portion 83 in a plan view (see Figure 8).

[0043] The structure of the bottom wall 60 and opening 7 in the cover 6 will be described with reference to Figures 10 and 12. As shown in Figure 10, the opening 7 is located approximately in the center of the cover 6 in the front-to-rear direction and behind the center of the cover 6 in the front-to-rear direction. When the cover 6 is placed on the lower housing 3, the opening 7 is located above the cassette 9 stored in the storage section 38 (see Figure 14). The opening 7 has a rectangular shape in plan view that extends more in the front-to-rear direction than in the left-to-right direction. The opening 7 has approximately the same shape as the plate 80 in plan view.

[0044] The opening 7 is defined by an opening edge 71. The opening edge 71 includes a left edge 72 and a right edge 73. The left edge 72 constitutes the left end of the opening edge 71. The right edge 73 constitutes the right end of the opening edge 71 and is located to the right of the left edge 72. The left edge 72 and right edge 73 extend in the front-to-rear direction.

[0045] The bottom wall 60 is provided with a wall 61. The wall 61 is provided around substantially the entire periphery of the opening edge 71. The wall 61 extends upward from the bottom wall 60. The wall 61 includes walls 62, 65 and tongues 63, 64.

[0046] The wall 62 is provided on the left edge 72. The wall 62 extends in the front-to-rear direction over the entire area of the left edge 72. The wall 62 has a protrusion 620. The protrusion 620 is located approximately in the center of the wall 62 in the front-to-rear direction. The protrusion 620 protrudes leftward beyond the portion of the wall 62 other than the protrusion 620. The protrusion 620 is provided with a recess 74 that is recessed leftward from the left edge 72. When the panel 8 is fitted into the opening 7, the first protrusion 81 fits into the recess 74.

[0047] The wall 65 and the tongues 63, 64 are provided on the right edge 73. They are located approximately in the center of the right edge 73 of the wall 65 in the front-to-rear direction. The wall 65 extends in the front-to-rear direction. The tongue 63 is provided behind the wall 65. The tongue 63 extends from the bottom wall 60 upward beyond the walls 62, 65. When the cassette 9 is stored in the storage section 38, the tongue 63 is located to the right of the cassette 9 in a bottom view (see Figure 11).

[0048] As shown in Figure 12, the tongue 63 has a generally triangular shape that decreases in size in the left-right direction as it extends upward in a front view. In a left side view, the tongue 63 has a rectangular shape that extends more in the up-down direction than in the front-to-back direction. In other words, the tongue 63 is a generally triangular prism-shaped wall. The left surface 631 of the tongue 63 intersects the up-down direction and is inclined downward and left.

[0049] An opening 75 is provided in the tongue 63. The opening 75 is recessed to the right from the right edge 73, opening the tongue 63 in the left-right direction. The lower end of the opening 75 is located at approximately the same position as the upper end of the bottom wall 60. The upper end of the opening 75 is located at approximately the center of the tongue 63 in the up-down direction. In other words, the opening 75 extends in the up-down direction. When the panel 8 is fitted into the opening 7, the second protrusion 82 fits into the opening 75 (see Figure 7).

[0050] The right surface 632 of the tongue piece 63 is composed of an upper right surface 633 and a lower right surface 634. The upper right surface 633 is the portion of the right surface 632 that is above the opening 75. The upper right surface 633 extends in the vertical direction. The lower right surface 634 is the portion of the right surface 632 that is below the opening 75. The lower right surface 634 is a curved surface that bulges to the left and extends downward and to the right in a front view.

[0051] The tongue 64 has the same configuration as the tongue 63 except for its position relative to the wall 65. As shown in Figure 10, the tongue 64 is provided in front of the wall 65. That is, the tongue 64 is shifted in the front-to-rear direction relative to the tongue 63. The tongue 64 extends from the bottom wall 60 above the walls 62 and 65. When the cassette 9 is housed in the housing portion 38, the tongue 64 is located to the right of the cassette 9 in a bottom view.

[0052] The tongue piece 64 is a roughly triangular prism-shaped wall whose left-right size decreases as it extends upward in a front view. The tongue piece 64 is rectangular in shape and extends more vertically than it does in a front-to-back view in a left side view. The left surface of the tongue piece 64 intersects the vertical direction and slopes downward and left.

[0053] An opening 76 is provided in the tongue 64. The opening 76 is recessed to the right from the right edge 73, opening the tongue 64 in the left-right direction. The lower end of the opening 76 is located at approximately the same position as the upper end of the bottom wall 60. The upper end of the opening 76 is located at approximately the center of the tongue 64 in the up-down direction. In other words, the opening 76 extends in the up-down direction. When the panel 8 is fitted into the opening 7, the third protrusion 83 fits into the opening 76 (see Figure 7). The recess 74 is located in a staggered position relative to the openings 75 and 76 in a bottom view.

[0054] The right surface of the tongue 64 is composed of an upper right surface portion that is above the opening 76 and a lower right surface portion that is below the opening 75. The upper right surface of the tongue 64 extends in the vertical direction. The lower right surface of the tongue 64 is a curved surface that bulges to the left and extends downward and to the right when viewed from the front.

[0055] 11 to 13, how an operator fits the panel 8 into the opening 7 will be described. When fitting the panel 8 into the opening 7, the operator brings the panel 8 close to the cover 6 from above. The operator fits the first protrusion 81 of the panel 8 into the recess 74 (see FIG. 13).

[0056] With the first protrusion 81 fitted into the recess 74, the worker brings the second protrusion 82 into contact with the left surface 631 of the tongue 63, and brings the third protrusion 83 into contact with the left surface of the tongue 64. At this time, the right front end of the second protrusion 82 comes into contact with the left surface 631 of the tongue 63 from above, and the right front end of the third protrusion 83 comes into contact with the left surface of the tongue 64 from above. In this state, the worker presses the panel 8 downward.

[0057] The left surface 631 of the tongue 63 and the left surface of the tongue 64 are inclined downward and left. Therefore, when an operator presses the panel 8 downward, a downward force and a rightward pushing force are applied to the tongues 63, 64. Because the tongues 63, 64 are cantilevered, the tongues 63, 64 and the openings 75, 76 are deflected to the right by the rightward force.

[0058] The second protrusion 82 slides on the left surface 631 of the tongue 63, and the third protrusion 83 slides on the left surface of the tongue 64. When the worker presses the panel 8 downward in this state, the second protrusion 82 fits into the opening 75, and the third protrusion 83 fits into the opening 76 (see FIG. 12). As a result, the panel 8 is fitted into the opening 7. At this time, in a plan view, the left-right size of the portion where the opening 75 and the second protrusion 82 overlap, and the left-right size of the portion where the third protrusion 83 overlaps with the opening 76 (hereinafter referred to as length L2) are smaller than the left-right size of the portion where the first protrusion 81 overlaps with the recess 74 (hereinafter referred to as length L1) (see FIG. 11).

[0059] The main effects of the printer 1 in the embodiment described above will be described. In the printer 1, an opening 7 is provided in the bottom wall 60 of the housing 2. The bottom wall 60 has a recess 74, a tongue 63, and an opening 75. The recess 74 is a portion recessed leftward from the left edge 72 of the opening 7. The tongue 63 is provided on the right edge 73 of the opening 7 and extends upward from the bottom wall 60. The opening 75 is recessed rightward from the right edge 73, opening the tongue 63 in the left-right direction. A panel 8 is fitted into the opening 7. The panel 8 has a plate 80, a first protrusion 81, and a second protrusion 82. The plate 80 extends crosswise in the vertical direction. The first protrusion 81 protrudes leftward from the left end of the plate 80 and fits into the recess 74. The second protrusion 82 includes protrusions 821 and 822. The protrusion 821 protrudes rightward from the right end 802 of the plate 80. The protruding portion 822 protrudes upward from the protruding portion 821. The second protruding portion 82 fits into the opening 75.

[0060] According to this configuration, when the second protrusion 82 is fitted into the opening 75 from above, the second protrusion 82 comes into contact with the tongue 63. At this time, the pressing force from the second protrusion 82 deforms the tongue 63 and the opening 75 to the right. Here, the protrusion 822 of the second protrusion 82 extends upward from the protrusion 821. Therefore, compared to when the second protrusion 82 does not include the protrusion 822, the opening 75 extends longer in the vertical direction, and the tongue 63 also extends longer in the vertical direction. Therefore, the tongue 63 has a cantilever shape extending from the bottom wall 60 and is prone to elastic deformation to the right. When the second protrusion 82 fits into the opening 75 and the pressing force from the second protrusion 82 is removed, the tongue 63 and the opening 75, which were deformed by the pressing force, return to their original states. Because the tongue 63 and the opening 75 elastically deform in this manner, when the panel 8 is fitted into the opening 7, the printer 1 contributes to reducing damage to the panel 8.

[0061] In the printer 1, the lower housing 3 of the housing 2 includes a bottom wall 31. The bottom wall 31 is provided with a storage section 38 that stores a cassette 9 containing tape. The housing 2 has a cover 6 that includes a bottom wall 60. The bottom wall 60 covers the storage section 38 from below. This allows the printer 1 to easily allow the user to visually check the cassette 9 stored in the storage section 38 through a panel 8 fitted into an opening 7.

[0062] In the printer 1, the storage section 38 stores the cassette 9. The tongue 63 is located to the right of the cassette 9 in a bottom view. This makes it less likely that the tongue 63 extending upward from the bottom wall 60 will interfere with the cassette 9 stored in the storage section 38. This contributes to reducing the vertical size of the entire printer 1.

[0063] In the printer 1, the bottom wall 60 of the cover 6 has a tongue 64 and an opening 76. The tongue 64 is provided on the right edge 73 of the opening 7 and extends upward from the bottom wall 60. The tongue 64 is offset in the front-to-rear direction relative to the tongue 63. The opening 76 is recessed to the right from the right edge 73, opening the tongue 64 in the left-to-right direction. The panel 8 has a third protrusion 83. The third protrusion 83 includes protrusions 831 and 832. The protrusion 831 protrudes rightward from the right end 802 of the plate 80. The protrusion 832 protrudes upward from the protrusion 831. The third protrusion 83 fits into the opening 76. In a plan view, the length L2 is shorter than the length L1. In the printer 1, the second protrusion 82 fits into the opening 75, and the third protrusion 83 fits into the opening 76. Therefore, the panel 8 is firmly fitted into the opening 7. Furthermore, when the panel 8 is fitted into the opening 7, the pressing force is distributed to the tongues 63, 64, making the panel 8 less likely to be damaged than when only the second protrusion 82 fits into the opening 75. Furthermore, the length L2 is shorter than the length L1. Therefore, after fitting the first protrusion 81 into the recess 74, the operator can fit the panel 8 into the opening 7 with less force. Therefore, the printer 1 allows the panel 8 to be firmly fitted into the opening 7, and contributes to the operator being able to fit the panel 8 into the opening 7 with less force.

[0064] In the printer 1, the tongue 63 has a generally triangular shape that decreases in size in the left-right direction as it goes upward when viewed from the front. As a result, when the tongue 63 elastically deforms in the left-right direction, the lower end of the tongue 63 is less likely to deform in the left-right direction, and the upper end of the tongue 63 is more likely to bend in the left-right direction. Therefore, the printer 1 contributes to making it easier for the operator to fit the panel 8 into the opening 7.

[0065] In the printer 1, the lower right-side surface 634 of the tongue 63 is a curved surface that bulges leftward and extends downward and to the right in a front view. In the printer 1, the amount of deformation of the tongue 63 when a rightward pressing force is applied to it by the second protrusion 82 is proportional to the cube of the left-right size of the tongue 63 due to the relationship of the second moment of area of the tongue 63. Therefore, compared to when the lower right-side surface 634 is flat or when the lower right-side surface 634 of the tongue 63 is a curved surface that is concave to the right, the lower end of the tongue 63 is less likely to deform left-right and the upper end of the tongue 63 is more likely to bend left-right. Therefore, the printer 1 contributes to making it easier for the operator to fit the panel 8 into the opening 7.

[0066] In the printer 1, with the first protrusion 81 fitted into the recess 74, the right front end of the second protrusion 82 comes into contact with the left surface 631 of the tongue 63 from above, and then the second protrusion 82 is fitted into the opening 75. As a result, before the second protrusion 82 is fitted into the opening 75, a rightward pressing force is applied from the second protrusion 82 to the tongue 63, making it easier for the tongue 63 and the opening 75 to bend to the right. Thus, the printer 1 contributes to making it easier for the operator to fit the panel 8 into the opening 75.

[0067] In the printer 1, the left surface 631 of the tongue 63 slopes leftward as it extends downward. As a result, before the second protrusion 82 is fitted into the opening 75, the second protrusion 82 slides on the left surface 631 of the tongue 63. At this time, a pressing force toward the right is applied to the tongue 63. Therefore, the printer 1 contributes to making it easier for the operator to fit the panel 8 into the opening 7.

[0068] In the above embodiment, the bottom wall 60 is an example of a "first wall" of the present invention. The tape corresponds to the "medium" of the present invention. The opening 7 is an example of an "opening" of the present invention. The left edge 72 is an example of a "first opening edge" of the present invention. The right edge 73 is an example of a "second opening edge" of the present invention. The recess 74 is an example of a "first recess" of the present invention. The tongue 63 is an example of a "first tongue" of the present invention. The opening 75 is an example of a "second recess" of the present invention. The left end 801 is an example of a "left end" of the present invention. The protrusion 821 is an example of a "first protrusion" of the present invention. The protrusion 822 is an example of a "second protrusion" of the present invention. The bottom wall 31 is an example of a "second wall" of the present invention. The tongue 64 is an example of a "second tongue" of the present invention. The opening 76 is an example of a "third recess" of the present invention. The protrusion 831 is an example of a "third protrusion" of the present invention. The protrusion 832 is an example of a "fourth protrusion" of the present invention.

[0069] The present invention can be modified in various ways from the above-described embodiment. The various modifications described below can be combined with each other as long as no inconsistencies arise. The structure of the panel 8 may be modified as appropriate. In the above-described embodiment, the protrusion 822 extends upward from the upper right end of the protrusion 821. However, the base end of the protrusion 822 is not limited to the upper right end of the protrusion 821. The protrusion 822 may extend upward from, for example, the upper end at the center of the left-right direction of the protrusion 821. In this case, the opening 75 extends longer in the vertical direction than when the protrusion 822 is not included in the second protrusion 82, and the tongue 63 also extends longer in the vertical direction. Therefore, the tongue 63 is more likely to bend in the horizontal direction due to the pressing force from the second protrusion 82. This contributes to reducing damage to the panel 8. Similarly, while the protrusion 832 extends upward from the upper right end of the protrusion 831, the base end of the protrusion 832 is not limited to the upper right end of the protrusion 831. The protrusion 832 may extend upward from, for example, the upper left end of the protrusion 831.

[0070] In the panel 8, the protrusion 821 may protrude rightward from the right end 802, for example, protrude to the front right or rear right from the right end 802. Similarly, the protrusion 831 may protrude rightward from the right end 802, for example, protrude to the front right or rear right from the right end 802. The protrusion 822 may protrude upward from the protrusion 821, for example, protrude to the upper left, upper right, front upper, rear upper, etc. from the protrusion 821. Similarly, the protrusion 832 may protrude upward from the protrusion 831, for example, protrude to the upper left, upper right, front upper, rear upper, etc. from the protrusion 831.

[0071] In the panel 8, the first protrusion 81 may protrude leftward from the left end 801, and may protrude, for example, to the front left, rear left, upper left, or lower left from the left end 801. The panel 8 may have a protrusion extending upward from the first protrusion 81.

[0072] In the panel 8, the plate 80 may be configured to extend in the front-rear direction, and the shape of the plate 80 may be changed as appropriate. For example, the plate 80 may have a hexagonal shape in a plan view.

[0073] The structure of the opening edge 71 may be changed as appropriate. The left edge 72 of the opening edge 71 may extend in the front-to-rear direction, and may extend, for example, to the left front or right front. The right edge 73 of the opening edge 71 may extend in the front-to-rear direction, and may extend, for example, to the left front or right front.

[0074] The structure of the bottom wall 60 may be modified as appropriate. The recess 74 may be recessed leftward from the left edge 72, for example, toward the front left or rear left. The recess 74 may be recessed leftward from the left edge 72, and may not have a recessed bottom. In other words, the recess 74 may open the protrusion 620 in the left-right direction.

[0075] The opening 75 only needs to be recessed to the right from the right edge 73, and may be recessed, for example, to the front right or rear right. The opening 75 only needs to be recessed to the left from the right edge 73, and may have a recessed bottom. In other words, the opening 75 does not need to open the tongue 63 in the left-right direction. Similarly, the opening 76 only needs to be recessed to the right from the right edge 73, and may be recessed, for example, to the front right or rear right. The opening 76 only needs to be recessed to the left from the right edge 73, and may have a recessed bottom. In other words, the opening 76 does not need to open the tongue 64 in the left-right direction.

[0076] In the above embodiment, the printing unit 21 is a thermal head that performs printing by heat, but the printing unit 21 may also be, for example, an inkjet head that ejects ink.

[0077] In the above embodiment, the cover 6 of the housing 2 is placed on the lower housing 3 from below, covering the storage section 38. In contrast, the cover 6 does not have to cover the storage section 38, and may cover, for example, the upper housing 5. The opening 7 may be provided in a wall of the cover 6 that is different from the bottom wall 60. The opening 7 does not have to be provided in the cover 6, and may be provided in, for example, the bottom wall 31, the top wall 41, the peripheral walls 32, 42, etc. In this case, the housing 2 does not have to have the cover 6.

[0078] The storage section 38 does not have to be provided in the bottom wall 31, and may be provided in, for example, the top wall 41, the bottom wall 60, or the peripheral walls 32, 42. The tape does not have to be stored in the cassette 9. In this case, the tape may be stored in the storage section 38 as is.

[0079] In the above embodiment, the tongues 63, 64 are located to the right of the cassette 9 in a bottom view. However, the tongues 63, 64 may be located to the left, forward, or rearward of the cassette 9 in a bottom view. The tongues 63, 64 may be located in a position that overlaps with the cassette 9 in a bottom view.

[0080] The bottom wall 60 does not have to have the tongue 64. In the above embodiment, the tongue 64 has the same structure as the tongue 63, but the tongue 64 may have a different structure from the tongue 63. For example, the tongue 64 does not have to be provided with the opening 76.

[0081] The tongue piece 64 may be disposed at a position shifted in the front-to-rear direction relative to the tongue piece 63. The tongue piece 64 may be disposed at the left front, right front, rear, left rear, or right rear relative to the tongue piece 63. The tongue pieces 63 and 64 may be disposed at the same position in the front-to-rear direction.

[0082] The bottom wall 60 may be provided with one or more tongues different from the tongues 63 and 64. That is, the bottom wall 60 may have a third tongue different from the tongues 63 and 64. The shape of the third tongue may be the same as or different from the shape of the tongues 63 and 64. The third tongue may be positioned offset in the front-to-rear direction from the tongues 63 and 64. The third tongue may be positioned offset in the front-to-rear direction from either one of the tongues 63 and 64. The tongues 63 and 64 and the third tongue may be positioned at the same position in the front-to-rear direction. The third tongue may be provided with a fourth recess recessed to the right from the right edge 73. In this case, the panel 8 may be provided with a fourth protrusion protruding to the right from the right end 802 of the plate 80. The fourth protrusion may have the same structure as the second protrusion 82 and the third protrusion 83, or may have a different structure.

[0083] The panel 8 may not have the third convex portion 83. In the above embodiment, the second convex portion 82 has the same structure as the third convex portion 83, but the second convex portion 82 may have a different structure from the third convex portion 83. For example, the third convex portion 83 may not include the protruding portion 832. The third convex portion 83 may not include the protruding portion 831, and the protruding portion 832 may protrude upward from the right end 802 of the plate 80.

[0084] In the above embodiment, in a plan view, the left-right size of the portion where the opening 75 and the second convex portion 82 overlap and the left-right size of the portion where the opening 76 and the third convex portion 83 overlap are smaller than the left-right size of the portion where the first convex portion 81 overlaps with the recess 74. In contrast, the left-right size of the portion where the opening 75 and the second convex portion 82 overlap may be larger than the left-right size of the portion where the first convex portion 81 overlaps with the recess 74. The left-right size of the portion where the opening 76 and the third convex portion 83 overlap may be larger than the left-right size of the portion where the first convex portion 81 overlaps with the recess 74. In a plan view, the left-right size of the portion where the opening 75 and the second convex portion 82 overlap and the left-right size of the portion where the opening 76 and the third convex portion 83 overlap (length L2) may be larger than the left-right size (length L1) of the portion where the first convex portion 81 overlaps with the recess 74.

[0085] The bottom wall 60 may be provided with one or more recesses different from the recess 74 and the openings 75 and 76. For example, the bottom wall 60 may have a left recess that is positioned at a position offset in the front-to-rear direction from the recess 74 and recessed leftward from the left edge 72. The left recess may have the same structure as the recess 74, or may have a different structure.

[0086] In the above embodiment, the recesses 74 are staggered relative to the openings 75 and 76 in a bottom view, but this is not limiting. For example, the recesses 74 may be in the same position as the openings 75 in the front-to-rear direction. When the cover 6 is molded by injection molding, good molding can be achieved if the recesses 74 provided on the left edge 72 are staggered relative to the openings 75 and 76 provided on the right edge 73 in a bottom view.

[0087] The tongues 63, 64 may extend upward from the right edge 73, and may extend, for example, from the right edge 73 to the upper left, upper right, upper front, upper rear, etc. In the above embodiment, the tongues 63, 64 have a smaller left-right size as they extend upward. In contrast, the left-right size of the tongues 63, 64 may not change, or may increase as they extend upward.

[0088] In the above embodiment, the lower right surface 634 of the tongue 63 and the lower right surface 64 are curved surfaces that bulge to the left and extend downward and to the right in a front view. In contrast, the lower right surface 634 of the tongue 63 may be a flat surface or a curved surface that is concave to the right. The lower right surface of the tongue 64 may be a flat surface or a curved surface that is concave to the right. The shape of the upper right surface 633 of the tongue 63 or the shape of the upper right surface of the tongue 64 may be changed as appropriate.

[0089] In the above embodiment, the left surface 631 of the tongue 63 and the left surface of the tongue 64 are inclined leftward as they extend downward. In contrast, the left surface 631 of the tongue 63 may extend upward without inclining left and right, or may be inclined rightward as they extend downward. The left surface of the tongue 64 may extend upward without inclining left and right, or may be inclined rightward as they extend downward.

[0090] In the above embodiment, with the first convex portion 81 fitted into the recess 74, the second convex portion 82 comes into contact with the left surface 631 of the tongue 63, and the third convex portion 83 comes into contact with the left surface of the tongue 64. In contrast, the second convex portion 82 may come into contact with the left surface 631 of the tongue 63 before the first convex portion 81 is fitted into the recess 74. The third convex portion 83 may come into contact with the left surface of the tongue 64 before the first convex portion 81 is fitted into the recess 74.

[0091] When the first convex portion 81 is fitted in the recess 74, the second convex portion 82 may come into contact with a surface other than the left surface 631 of the tongue 63. The second convex portion 82 may come into contact with, for example, the right surface 632 of the tongue 63. When the first convex portion 81 is fitted in the recess 74, the second convex portion 82 may fit into the opening 75 without coming into contact with any surface of the tongue 63. When the first convex portion 81 is fitted in the recess 74, the third convex portion 83 may come into contact with a surface other than the left surface of the tongue 64. The third convex portion 83 may come into contact with, for example, the right surface of the tongue 64. When the first convex portion 81 is fitted in the recess 74, the ... fit into the opening 76 without coming into contact with any surface of the tongue 64.

[0092] Other modified examples will be described. The extension 471 of the top wall 41 does not need to be provided with the protrusion 472. The size of the protrusion 472 in the A direction or the size of the protrusion 472 in the B direction may be changed as appropriate. It is preferable that the size of the protrusion 472 in the B direction at the A direction end be changed according to the thickness and number of signal lines. The shape of the protrusion 472 may be changed as appropriate. The protrusion 472 may be a semicircular cylindrical shape that bulges out on one side toward the C-shaped tube portion 48 in the A direction in a plan view. It is preferable that the shape of the protrusion 472 be changed according to the shape of the C-shaped tube portion 48.

[0093] The upper mounting portion 40 of the intermediate housing 4 may not have the pair of ribs 46. The upper mounting portion 40 may not have one or the other of the pair of ribs 46. The vertical size of the pair of ribs 46 may be changed as appropriate. It is preferable that the vertical size of the pair of ribs 46 be changed according to the size of the gap between the extension portion 36 and the ceiling portion 44 and the diameter of the strap string. The shape of the pair of ribs 46 may be changed as appropriate. For example, the pair of ribs 46 may be cylindrical in a plan view. If the pair of ribs 46 have an integrated structure, the rib 46 may extend along the mounting portion 22 in a substantially U-shape in a plan view. [Explanation of symbols]

[0094] 1. Printer 2. Case 6 Cover 7 aperture 8 Panels 9 cassettes 21 Printing Department 22 Mounting part 46 Ribs 60 Bottom Wall 63, 64 Tongue piece 71 Opening edge 74 recess 75, 76 aperture 472 Protrusion 631 Left side 633 Lower right side 821, 831 protrusion 822, 832 protrusion

Claims

1. a housing having a first wall extending intersectingly in the vertical direction; a printing unit housed in the housing and configured to print on a medium; a panel that fits into an opening in the first wall; the opening is defined by an opening edge provided on the housing, and the first wall is open in the up-down direction; The opening edge is a first opening edge extending in a front-rear direction intersecting the up-down direction; a second opening edge extending in the front-rear direction and disposed to the right of the first opening edge in one of left and right directions intersecting the up-down direction and the front-rear direction, The first wall is a first recess recessed from the first opening edge to the left opposite to the right; a first tongue piece extending upward from the second opening edge in one of the vertical directions; a second recess provided on the first tongue piece and recessed rightward from the second opening edge, The panel comprises: a plate including a left end extending in the front-rear direction and a right end extending in the front-rear direction and disposed to the right of the left end; a first protrusion protruding leftward from the left end and fitted into the first recess; a first protruding portion protruding rightward from the right end and a second protruding portion protruding upward from the first protruding portion, the second protruding portion being fitted into the second recessed portion; A printer characterized by:

2. the housing includes a second wall provided with a storage portion in which the medium is stored, The printer according to claim 1 , wherein the first wall covers the storage portion from below, opposite to the above.

3. the storage unit stores a cassette that stores the medium; The first tongue piece is located at a position where it does not overlap with the cassette when viewed from the up-down direction.

3. The printer according to claim 2, wherein:

4. The first wall is a second tongue piece disposed at a position shifted in the front-rear direction relative to the first tongue piece and extending upward from the second opening edge; a third recess provided on the second tongue piece and recessed rightward from the second opening edge, The panel comprises: a third protruding portion protruding rightward from the right end and a fourth protruding portion protruding upward from the third protruding portion, the third protruding portion being fitted into the third recessed portion; When viewed from the top-bottom direction, the length in the left-right direction of a portion where the second convex portion overlaps the second concave portion and the length in the left-right direction of a portion where the third convex portion overlaps the third concave portion are smaller than the length in the left-right direction of a portion where the first convex portion overlaps the first concave portion.

2. The printer according to claim 1, wherein:

5. 2. The printer according to claim 1, wherein the first tongue piece has a size in the left-right direction that decreases toward the upper side.

6. 6. The printer according to claim 5, wherein a lower portion of the right end face of the first tongue piece is a curved surface recessed leftward when viewed from the front-rear direction.

7. With the first protrusion fitted into the first recess, the second protrusion comes into contact with the left end surface of the first tongue piece from above, and then the second protrusion is fitted into the second recess.

2. The printer according to claim 1, wherein:

8. 8. The printer according to claim 7, wherein the left end surface of the first tongue piece is inclined leftward as it goes downward opposite to the upward direction.

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