JP4394400B2 - Ink ribbon cassette - Google Patents

Description

  The present invention relates to an ink ribbon cassette.

  An elongated cassette main body case portion in which an ink ribbon is stored, and a pair of ink ribbon guide arm portions projecting laterally from one side of both longitudinal end portions of the main body case portion, and the projecting end portions of the pair of arm portions And a ribbon guide for positioning the used area of the exposed portion of the ribbon at the tip of the nose of the head, the ink ribbon being in the feeding direction of the ink ribbon. A ribbon guide main body provided with a pair of engagement guides that are engaged with the exposed portion of the ink ribbon before and after the used area, and a head (including a carriage) formed integrally with the ribbon guide main body. 2. Description of the Related Art An ink ribbon cassette having a leg portion that is detachably attached is known (for example, Patent Document 1).

  And a pair of ink ribbon guide arms projecting laterally from one side of both longitudinal ends of the main body case. A cassette main body in which an exposed portion of the ink ribbon is stretched between the end portions, and a ribbon guide for positioning the used region of the exposed portion of the ribbon at the tip of the nose of the head, and the ribbon guide in the feeding direction of the ink ribbon A ribbon guide main body having a pair of engagement guides engaged with an exposed portion of the ink ribbon before and after the used area of the ink ribbon, and from the ribbon guide main body toward the head when mounted on the head Ink ribbon cassettes are also known that have an extension leg portion at the extension end with a leg portion that is removably attached to the head.

In the latter type of ink ribbon cassette, in order to reduce the length of the elongated ink ribbon cassette in the width direction, when the lengths of the guide arm portions at both ends are reduced, the ribbon in the direction parallel to the extending direction of the guide arm portions is assumed. If the guide length is long, the ribbon will protrude greatly at the ribbon guide, so if you try to store such an ink ribbon cassette in a rectangular box or the like, the size of the ink ribbon cassette storage box during transportation will increase. In addition, the ribbon may be easily damaged around the protruding ribbon guide. On the other hand, if the length of the ribbon guide in the direction parallel to the extending direction of the guide arm portion is shortened, the ribbon guide is attached to the head near the tip near the nose portion of the head. There is a possibility that it is difficult to fix and support the guide stably.
Japanese Utility Model Publication No. 5-31965

  The present invention has been made in view of the above-described points, and an object of the present invention is to provide an ink ribbon cassette that not only can be firmly attached to the head but also can be stored compactly when not attached. .

  In order to achieve the above object, an ink ribbon cassette according to the present invention has a long and narrow cassette main body case portion in which an ink ribbon is stored and a pair of ink ribbon guide arms protruding laterally from one side of both longitudinal end portions of the main body case portion. A cassette body in which an exposed portion of the ink ribbon is stretched between the protruding end portions of the pair of arm portions, and a used region of the exposed portion of the ink ribbon is positioned at the tip of the nose of the head Ribbon guide having a pair of engagement guides engaged with an exposed portion of the ink ribbon before and after the used area of the ink ribbon in the ink ribbon feeding direction, and attached to the head The mounting leg portion extending from the ribbon guide main body portion toward the head at the extended end portion has a leg portion that is detachably attached to the head. Legs are configured to be bent.

  In the ink ribbon cassette of the present invention, “the leg portion that is detachably attached to the head is configured to be bent”, the leg portion of the ribbon guide that is attached to the head is longer than the arm portion of the cassette body. However, when not attached, such as during transport, the ribbon guide legs can be bent so that it can be within the range of the protruding arm, so the ribbon cassette can be compacted when not mounted, such as during transport. Therefore, not only can the conveyance be performed easily, but also the possibility that the ink ribbon is damaged during the conveyance can be minimized. Further, in the ink ribbon cassette of the present invention, “the leg portion that is detachably attached to the head is configured to be bendable”. Therefore, when the ribbon guide is attached to the head, the bending of the leg portion is released. By extending the leg portion, it is possible to attach the leg portion to a region behind the head far from the nose portion.

  Therefore, in the ink ribbon cassette of the present invention, the leg portion of the ribbon guide is typically attached to the head at or near the tip portion of the leg portion.

  In the present invention, the “head” to which the ribbon guide is attached typically refers to the head itself, but the present invention is an ink ribbon that is sequentially fed out during printing by the head that is reciprocated integrally with the carriage. Since it is actually not necessary to distinguish the carriage from the head, the term “head” in the present invention is used instead of the so-called head itself unless it is clear from the context before and after that that the carriage is clearly distinguished. 1 or both including a so-called carriage.

  In the present invention, the ink ribbon cassette is typically incorporated in a printing apparatus such as a printer, and typically has a length comparable to the length of the platen of the printing apparatus. However, the ink ribbon cassette itself may be mounted on the carriage and reciprocated together with the carriage.

  The cassette main body accommodates an ink ribbon therein, and the main body portion excluding the arm portion typically has a substantially rectangular planar shape. However, if desired, the corners may be chamfered or curved, and some or all of the longitudinal side edges (side surfaces) and end edges (end surfaces) may be non-linear. Good.

  The guide arm portion of the cassette body is typically partly or entirely cylindrical in order to guide the drawing and drawing of the ink ribbon in the main body portion of the cassette body, and its inward facing portion. In the vicinity of the tip of the ink ribbon, an ink ribbon drawing (drawing) opening and a drawing opening are provided. The guide arms typically project within the extension surface of the main body case portion along both longitudinal edges of the cassette main body case portion, but as long as they are actually located at both ends, if desired, You may protrude in the inner side thru | or the center side a little from both ends. The ink ribbon is stretched between the ink ribbon drawing opening and the drawing opening in the arm portion of the cassette body.

  In addition, the length of the guide arm portion of the cassette body in the extending direction (the arm portion) is typically shorter than the length in the direction of the head on which the ribbon guide is mounted. However, if desired, it may be equal to or longer than the length of the head in this direction.

  In the ink ribbon cassette of the present invention, the leg portion typically includes a support leg portion located in a plane substantially parallel to a plane defined by the cassette case and the exposed portion of the ink ribbon, The mounting leg portion extends in a direction intersecting the support leg portion at the extended end of the support leg portion and is detachably attached to the attached portion of the head. In this case, by making the support leg portion sufficiently long, the attachment strength by the attachment leg portion can be easily increased.

  In the ink ribbon cassette of the present invention, typically, the leg portion is rotatable with respect to the base side leg portion protruding from the main body portion of the ribbon guide toward the one side and the protruding portion of the base side leg portion. A distal leg portion connected to the distal end, and the distal leg portion includes an attachment leg portion. The rotation axis is typically substantially perpendicular to the extending surface of the cassette body case portion. However, if desired, as long as the legs are pivoted around the pivot shaft and bent within the thickness range of the cassette body, the pivot shaft is inclined to some extent if desired. May be. In addition, the rotation axis is typically one per leg, but if desired, the legs may include rotation axes at two or more locations. Further, the ribbon guide typically includes a pair or two of leg portions, and the leg portions typically have the same structure and shape as each other except that they are mirrored. In this case, typically, the pair of legs can rotate in directions opposite to each other. However, if desired, the structure and shape of the legs may be different from each other.

  The ribbon guide main body portion typically includes an attachment holding portion that can be held by a finger when the ribbon guide is attached to the head. Thereby, the ribbon guide can be attached to a predetermined portion of the head without touching the ink ribbon.

  A preferred embodiment of the present invention will be described based on a preferred embodiment shown in the accompanying drawings.

  As shown in FIG. 1, an ink ribbon cassette 1 according to a preferred embodiment of the present invention includes a cassette body 10, an ink ribbon 30 in which most parts are accommodated in the cassette body 10, and a ribbon guide 40. .

  The cassette main body or cartridge main body 10 includes a substantially rectangular parallelepiped cassette main body case portion or cartridge main body case portion 11 elongated along one direction X, and both end portions 13 and 14 on one side surface 12 of the cassette main body case portion 11. Cylindrical guide arm portions 15 and 16 projecting in a direction Y perpendicular to the longitudinal direction X of the cassette body case portion 11 (a direction perpendicular to the side surface 12). Openings 19 and 20 through which the ink ribbon 30 enters and exits are formed in portions facing the inward (Y direction) of the tip portions 17 and 18 of the arm portions 15 and 16. In the following, for simplicity of explanation, a three-dimensional orthogonal coordinate system X, Y, Z fixed to the cartridge body 10 is taken, and the Z direction is perpendicular to the plane of FIG. . When used by being incorporated in a printer, the Y direction is downward and the −Z direction is frontward. Therefore, although the following description will be made based on this direction, the orientation itself is convenient. In a state in which the main body 10 is not attached to the printer, the orientation can be changed as desired, for example, it is placed so that the −Z direction is upward, and is relative.

  In the cassette body case 11, the ink ribbon 30 is stored, for example, in a zigzag or corrugated state, and the driving roller 22 and the driven roller integrated with the manual winding knob 21 on the inlet side or the winding side. 23 and can be wound in the A direction. Therefore, a portion 31 of the ink ribbon 30 that has passed through the hollow guide arm 15 on the feeding side from the cassette case main body 11 and exits from the opening 19 of the tip 17 of the arm 15 is taken from the opening 19 to the winding side arm. The cassette case main body 11 is exposed to the outside in the exposed portion or the exposed region B of the tip portion 18 of the portion 16 to the opening 20 and passes through the hollow guide arm portion 16 from the opening 20 of the tip portion 18 of the winding side arm portion 16. The pair of take-up rollers 22 and 23 are returned to the storage area in the cassette body case 11.

  The ribbon guide 40 of the cassette case 1 includes a ribbon guide main body portion 50 and legs 60 and 70, and the ribbon guide main body portion 50 is rotatable on a main body frame portion 51 and a bearing portion of the main body frame portion 51. A pair of supported guide rollers 52 and 53 are provided. For simplicity of explanation, the direction of the ribbon guide 40 is also expressed in the same coordinate system as the cassette case body 10 and connected to the cassette case body 10 as shown in FIG. The main body frame 51 includes a front and rear direction (Z direction) extending frame portions 54 and 55 and a ribbon feeding direction (X direction) extending frame portion 56 that connects the front end portions of the Z direction extending frame portions 54 and 55. When viewed in the direction of (d) in FIG. 1, it has a substantially inverted U-shape as a whole. The front and rear direction extending frame portions 54 and 55 are, for example, side surface portions 54a and 55a extending in the front and rear direction in a plane substantially parallel to two YZ planes, and the parallel side surface portions 54a and 55a. Guide / reinforcing side portions 54b and 55b that are inclined obliquely. Here, the main body frame portion 51, more specifically, a portion of the front and rear direction frame portions 54 and 55 that is positioned on the near side (−Z direction) of the ink ribbon 30 and the X-direction extending frame portion 56 are the ribbon guide. When handling 40, it is a held part that is pinched by the operator with a fingertip.

  The longitudinally extending frame portions 54 and 55 are a pair of bearing portions 54c, 54c, and 55c that rotatably support both end portions of the guide rollers 52 and 53 in respective deep portions (lower portions in FIG. 1D). , 55c and guide surface portions 57, 58 at the back of the guide / reinforcing side portions 54b, 55b (lower portions in FIGS. 1D and 1E). Accordingly, the ink ribbon 30 extends from the opening 19 of the guide arm portion 15 of the cassette body 10 located upstream in the feeding direction X of the exposed portion B of the ribbon 30 to the ribbon guide 40 and is guided by the guide roller 52 of the ribbon guide 40. After being guided and turned, it is guided and turned in the reverse direction so as to be substantially S-shaped as a whole along the guide surface portion 57 of the longitudinally extending frame portion 54 of the ribbon guide 40 and the other longitudinally extending direction. After reaching the guide surface portion 58 of the frame portion 55 and guided / turned along the guide surface portion 58, the guide roller 53 guides / turns in the opposite direction so as to be substantially S-shaped as a whole. It reaches the opening 20 of the other guide arm portion 16. Here, a region B1 between the guide surface portions 57 and 58 of the exposed portion B of the ink ribbon 30 corresponds to a used region where printing is performed by contacting the tip of the nose 86 of the print head 80 as will be described later.

  The leg portions 60 and 70 respectively extend from the front and rear direction extending frame portions 54 and 55 of the main body frame portion 51 constituting the main body portion of the ribbon guide 40 to a virtual surface (ZX plane or The base side leg portions 61 and 71 projecting in a direction substantially perpendicular to the surface parallel to the base side leg portions 61 and 71, and the projecting end portions 61a and 71a of the base side leg portions 61 and 71 are provided with the rotation connecting portions 62 and 72, respectively. And distal end leg portions 63 and 73 connected to each other.

  The base-side leg portion 61 is composed of a pair of plate-like portions 64 and 64 having substantially the same rectangular shape in the vertical direction. The leading edges 64a and 64a of the plate-like portions 64 and 64 are positioned on one plane so as to come into contact with the front surface 81 of the print head 80 described later. The plate-like portions 64, 64 have bearing holes 62a, 62a in the vicinity of the tip portions, and pins 66 are fitted into the bearing holes 62a, 62a at both end portions 66a, 66a. The distal leg portion 63 is formed integrally with the substantially rectangular plate-like leg main body 67 and the base end of the leg main body 67, and is in the front-rear direction in a direction perpendicular to the leg main body 67. A large-diameter cylindrical portion 68 that extends in the (Z direction) and is rotatably fitted to the pin 66, and is integrally formed at the distal end portion of the leg main body portion 67 and is perpendicular to the leg main body portion 67. And a large-diameter mounting shaft 69 extending in the back (+ Z direction). Here, the support leg portion includes a base side leg portion 61, a bearing 62, a large-diameter cylindrical portion 68 and a leg portion main body portion 67 of the distal end side leg portion 63, and the attachment leg portion is an attachment shaft portion 69. More specifically, the rear portion 69b is included. The rectangular plate-like leg main body 67 has a long side surface 67a that can be substantially in contact with a front surface 82 of the print head 80 described later. The large-diameter mounting shaft portion 69 is connected to the leg portion main body 67 by a front side portion 69a having a length substantially the same as one side of the distal end side of the rectangular leg main body portion 67, and a back side portion 69b is described later. The print head 80 is removably inserted and fitted into the mounting hole 83.

  Similarly to the base side leg portion 61, the base side leg portion 71 includes upper and lower substantially rectangular plate-like portions 74 and 74 having the same shape. The leading edges 74a and 74a of the plate-like portions 74 and 74 are positioned on one plane so as to abut on a front surface 81 of the print head 80 described later. The plate-like portions 74, 74 have bearing holes 72a, 72a in the vicinity of the tip portions, and pins 76 are fitted into the bearing holes 72a, 72a at both ends 76a, 76a. The distal leg portion 73 is formed integrally with the substantially rectangular plate-like leg main body 77 extending in the horizontal direction and the base end of the leg main body 77, with respect to the leg main body 76. A large-diameter cylindrical portion 78 that extends in a vertical direction in a perpendicular direction and is rotatably fitted to the pin 76, and a leg portion main body 77 that is integrally formed with the distal end portion of the leg main body portion 77. And a large-diameter mounting shaft portion 79 extending in the vertical direction at right angles. The rectangular plate-like leg main body 77 has a lower side surface 77a having a long side that can be substantially in contact with and placed on an upper surface 82 of a print head 80 described later. The large-diameter mounting shaft portion 79 is connected to the leg portion main body 77 by an upper portion 79a having substantially the same length as one side of the distal end side of the rectangular leg main portion 77, and the lower portion 79b is printed as described later. The head 80 is removably inserted and fitted into the mounting hole 84.

  In the ribbon guide 40 configured as described above, the distal leg legs 63 and 73 are substantially parallel to the extending surface (a plane parallel to the ZX plane) of the guide body 50. The state in which the parts 63 and 73 are rotated in the G1 and H1 directions around the respective rotation center axes C1 and C2 (corresponding to the state shown in FIG. ) In S1, the ribbon guide 40 has a thickness that is thinner than the length in the Y direction of the guide arm portions 15 and 16 of the cassette body 10 (from the back of the guide rollers 52 and 53 to the base end side leg portion). The thickness of the plate-like portions 64 and 74 of the plate-like portions 64 and 74 up to the front end surfaces 64a and 74a) T1, so that the ribbon guide 40 is substantially avoided from protruding in the Y direction between the guide arm portions 15 and 16. obtain. This is because, as shown in FIG. 1 (c), the leg portions 61 and 73 of the leg portions 61 and 71 of the ribbon guide 40 are rotated in the G2 and H2 directions, so that the legs of the ribbon guide 40 are provided. Assuming a state S2 in which the portions 61 and 71 are extended, in this state S2, the thickness T2 from the back surface of the guide rollers 52 and 53 to the tip portions 69 and 79 of the leg portions 63 and 73 is equal to that of the arm portions 15 and 16. Since the length is much larger than the length in the Y direction, the ribbon guide 40 and the ribbon 30 easily protrude in the Y direction as shown by an imaginary line D in FIG. Will be understood.

  Note that the rotation connecting portion or hinge portion 62 includes bearing holes 62a and 62a of the plate-like portions 64 and 64, pins 66, and small-diameter shaft portions at both ends of the large-diameter cylindrical portion 68 of the distal leg portion 63. Consists of. As long as the distal leg portion 63 is pivotable in the G1 and G2 directions around the axis C1 with respect to the proximal leg portion 61, the pivot connecting portion or the hinge portion 62 may have a different structure. Further, the rotation connecting part or hinge part 72 includes bearing holes 72a and 72a of the plate-like parts 74 and 75, pins 76, and small-diameter shaft parts at both ends of the large-diameter cylindrical part 78 of the distal leg portion 73. Consists of. As long as the distal leg portion 73 can pivot with respect to the proximal leg portion 71 in the directions of H1 and H2 around the axis C2 substantially parallel to the axis C1, the pivot connecting portion or the hinge portion 72 is also provided. Different structures may be used.

  As long as the leg portions 60 and 70 extend in a direction intersecting the extending surface (ZX plane) of the main body frame portion 51 with respect to the guide main body portion 50, the leg portions 60 and 70 are not necessarily perpendicular to the surface. For example, in a state where the leg portions 60 and 70 extend linearly (a state as shown in FIG. 1 (c)) S2, the tip portions extend obliquely so as to be closer to each other. However, conversely, the tip ends may extend obliquely so as to be separated from each other.

  Further, in the state of FIG. 1C, the leg portions 61 and 63 constituting the leg portion 60 are bent at the rotating connecting portion 62 or curved in the vicinity of the connecting portion 62 instead of projecting linearly. Similarly, the leg portions 71 and 73 constituting the leg portion 70 may be bent at the rotation connecting portion 72 instead of projecting linearly in the state of FIG. It may be curved in the vicinity of the connecting portion 72. The protruding lengths of the leg portions 61 and 71 may be short or long. When the lengths of the leg portions 61 and 71 are short, the leg portions 61 and 71 may be substantially regarded as a part of the main body 50. In that case, it can be considered that the leg portion 63 is directly connected to the main body 50 via the rotation connecting portions 62 and 72.

  Typically, the leg portion 60 and the leg portion 70 are formed in mirror symmetry. However, considering that the ink ribbon 30 is essentially sent in the A direction, the mirror symmetry in operation is lost. Therefore, as long as rotation about the rotation center axes C1 and C2 perpendicular to the XY plane is performed in the connecting portions 62 and 72, the extending direction, structure, and the like between the leg portion 60 and the leg portion 70 are performed. May be different.

  Moreover, although a leg part typically consists of a pair (two), as long as rotation in a connection part is performed in each leg part, there may be three or more leg parts.

  Further, in the illustrated example, each of the leg portions 60 and 70 has been described as being composed of two leg portions that are pivotably connected to each other, but may be composed of three or more leg portions, A single leg portion may be coupled to the guide main body 50 via the pivot coupling portions 62 and 72 so as to be pivotable.

  FIG. 2 shows a state in which the ink ribbon cassette 1 according to a preferred embodiment of the present invention is attached to the printer 5.

  In FIG. 2, the printer 5 includes a print head 80 movable between the side walls 6 and 7 in the X1 and X2 directions. Here, the print head 80 is mounted on a carriage movable in the X1 and X2 directions between the side walls or the side plates 6 and 7, and the head 80 may be regarded as a part of the carriage. That is, here, it is assumed that when the ribbon cassette 1 is mounted between the side walls 6 and 7 of the printer 5, the ribbon guide 40 is detachably mounted on the head 80 for the sake of simplicity of explanation. The ribbon guide 40 may be mounted on the carriage except that the nose 86 of the head 80 is brought into contact with the ribbon 30. In the printer 5, the platen 8 is supported between the side walls or the side plates 6 and 7 so as to face the head 80.

  As can be seen from FIG. 2B, the head 80 includes a head main body portion 85 and a nose 86, and plates constituting the base end side leg portions 61 and 71 of the ribbon guide 40 on the lower surface 81 of the head main body 85. Of the distal end side shaft portions 69 and 79 of the distal end side leg portions 63 and 73 just in contact with the end faces 64a and 74a of the shaped portions 64 and 74, and in the mounting holes 83 and 84 formed in the front surface 82 of the head main body portion 85. The lower end portions 69 b and 79 b are fitted, and the ribbon guide 40 is fixed to the head 80. In this attached state, the inner surfaces 67 a and 77 a of the leg body portions 67 and 77 abut against the surfaces 82 and 82 of the head 80. In the mounted state of the ribbon cassette 1, the leg portions 60 and 70 are in contact with the opposing surface 81 of the head 80 at the leading edges 64a and 74a, and are in contact with the opposing surface 82 of the head at the surfaces 67a and 77a. The rear shaft portions 69b and 79b of the mounting shaft portions 69 and 79 at the distal ends of the long leg main body portions 67 and 77 are fitted into the mounting holes 83 and 84 at positions far away from the lower end of the 80 in the -Y direction. Therefore, the ribbon guide 40 can be attached to the head 80 firmly and stably. Therefore, the ink ribbon 30 passing through the guide portion of the ribbon guide 40 can reliably and stably take a position that protrudes greatly in the Y direction according to the size of the head 80 and the like.

FIG. 1 shows an ink ribbon cassette according to a preferred embodiment of the present invention, in which (a) is an explanatory plan view showing the state of the ink ribbon cassette according to one embodiment during transport and storage, and (b) is an ink ribbon cassette of (a). (C) is an enlarged plan view illustrating the position (state) taken by the ribbon guide when mounted on the printer (for example, FIG. 2). (d) is a back side explanatory view seen in the direction of arrow ID of (c), (e) is a side side explanatory view of the arrow IE direction of (c) and (d), and (f) is a perspective explanatory view of the state of (c). FIGS. 2A and 2B show a state where the ink ribbon cassette of FIG. 1 is mounted on a printer, where FIG. 2A is a plan view illustrating the mounted state, and FIG. 2B is an enlarged plan view illustrating a head and a ribbon guide in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ink ribbon cassette 5 Printer 10 Cassette main body 11 Cassette main body case part 12 Side surface 13, 14 End part 15, 16 Guide arm part 30 Ink ribbon 40 Ribbon guide 50 Ribbon guide main body 51 Main body frame part 52, 53 Guide rollers 54, 55 Vertical direction Frame part 56 Horizontal frame part 60, 70 Mounting leg part 61, 71 Base end side leg part 62, 72 Rotating connection part (hinge part)
63, 73 Tip side legs 64, 74 Plate-like parts 64a, 74a Tip edges 66, 76 Pins 67, 77 Leg body parts 68, 78 Large diameter cylindrical parts 69, 79 Large diameter shaft parts 69b, 79b Lower part 80 Print head 81 Front surface 82 Upper surface 83, 84 Mounting hole 85 Head body 86 Nose A Ribbon feed direction B Exposed portion (exposed region)
B1 Used area C1, C2 Rotation center axis G1, G2, H1, H2 Rotation direction S1, S2 State X, Y, Z direction

Claims (4)

An elongated cassette main body case portion in which an ink ribbon is stored, and a pair of ink ribbon guide arm portions projecting laterally from one side of both longitudinal end portions of the main body case portion, and the projecting end portions of the pair of arm portions A cassette body in which the exposed portion of the ink ribbon is stretched between,
A ribbon guide that positions a used region of the exposed portion of the ink ribbon at the tip of the nose of the head, and is engaged with the exposed portion of the ink ribbon before and after the used region of the ink ribbon in the feeding direction of the ink ribbon. Ribbon guide main body with a pair of engaging guides, and mounting legs that extend from the ribbon guide main body toward the head when attached to the head and can be removed from the head With attached legs,
An ink ribbon cassette whose legs can be bent. The leg includes a support leg portion located in a plane substantially parallel to a plane defined by the cassette case and the exposed portion of the ink ribbon, and the mounting leg portion of the leg extends from the support leg portion. 2. The ink ribbon cassette according to claim 1, wherein the ink ribbon cassette extends in a direction intersecting with the support leg portion at an end and is detachably attached to an attached portion of the head. A leg part having a base side leg part projecting toward the one side from the ribbon guide main body part, and a tip side leg part connected to the projecting part of the base side leg part so as to be rotatable; The ink ribbon cassette according to claim 1, wherein the tip side leg portion includes a mounting leg portion. The ink ribbon cassette according to any one of claims 1 to 3, wherein the ribbon guide main body includes an attachment holding portion that can be held by a finger when the ribbon guide is mounted on the head.

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