JP6397978B2 - Tape cartridge - Google Patents

Description

  The present invention relates to a tape cartridge that is mounted on a cartridge mounting portion of a tape printer and used for printing by the tape printer.

Conventionally, as this type of tape cartridge, a tape cassette that is detachably mounted on a cassette mounting portion of a tape printer is known (see Patent Document 1).
The tape cassette contains a tape feed roller, a first tape spool on which a first tape is wound, a ribbon spool on which an ink ribbon is wound, and a ribbon take-up spool for winding an ink ribbon. ing. Also, the cassette case of the tape cassette is formed with a roller support hole corresponding to the tape feed roller, a first tape support hole corresponding to the first tape spool, and a winding support hole corresponding to the ribbon take-up spool. ing. Further, the cassette case is formed with a guide hole for guiding the mounting of the tape cassette and two pin holes for positioning the cassette case.
On the other hand, the cassette mounting portion of the tape printer has a tape drive shaft corresponding to the roller support hole, a ribbon winding shaft corresponding to the winding support hole, a guide shaft corresponding to the guide hole, and two pin holes. Two corresponding positioning pins are erected.
When the tape cassette is installed in the cassette mounting section, the tape drive shaft is fitted into the tape feed roller, the ribbon take-up shaft is fitted into the ribbon take-up spool, the guide shaft is inserted into the guide hole, and the two pin holes are inserted. Two positioning pins are inserted.
In this case, the tape drive shaft and the guide shaft protrude greatly from the cassette mounting portion, and the corresponding tape feed roller (roller support hole) and the guide hole are arranged at diagonal positions in plan view of the tape cassette. Yes. Thereby, the tape cassette is mounted accurately and smoothly on the cassette mounting portion.

JP 2012-126141 A

  In such a conventional tape cassette (tape cartridge), if the roller support hole and the guide hole are not sufficiently separated from each other, there is a problem that the tape cassette is inclined and cannot be attached or detached smoothly. Also, if the part that holds the tape cassette, the roller support hole and the guide hole are not arranged in a well-balanced manner, the mounting force and the pulling force are biased. There arises a problem that is not performed smoothly.

  An object of the present invention is to provide a tape cartridge that can be smoothly attached to and detached from the cartridge mounting portion by arranging the gripping portion and the guided portion in a balanced manner.

The tape cartridge of the present invention is detachably mounted on the cartridge mounting portion of a tape printer having a first shaft and a second shaft on a cartridge mounting portion on which the tape cartridge is detachably mounted. The tape cartridge has two gripping portions that can grip the tape cartridge when the tape cartridge is attached to and detached from the cartridge mounting portion. A platen roller into which the shaft is inserted, and a guided portion guided by the second shaft when being attached to and detached from the cartridge mounting portion, and when viewed from the mounting direction of the tape cartridge, the guided portion is: A grip on the opposite side of the platen roller across the imaginary line connecting the two gripping portions and farther from the platen roller in the two gripping portions. The outline of the tape cartridge is configured so that the distance between the gripping portion and the guided portion is smaller than the distance between the gripping portion closer to the platen roller and the guided portion of the two gripping portions. It is characterized by being recessed in the outer peripheral surface of the cartridge case.
In this case, it is preferable that the guided portion is recessed in such a direction that there is a wall that intersects with an imaginary line connecting the platen roller and the guided portion.
In this case, it is preferable that the guided portion is disposed at the most distal portion across the imaginary line connecting the two gripping portions from the platen roller when viewed from the mounting direction of the tape cartridge.
In this case, it is preferable that the guided portion is formed so that the outer peripheral surface is recessed in a substantially semicircular shape toward the platen roller side.
In this case, the cartridge case is composed of a lower case that is the back side in the mounting direction and an upper case that is the front side in the mounting direction when the tape cartridge is mounted in the cartridge mounting portion. The upper peripheral wall portion of the case and the lower peripheral wall portion of the lower case are preferably formed so as to be recessed in a substantially semicircular shape toward the platen roller side.
In this case, it is preferable that the cartridge case is provided with a shaft support portion on which the platen roller is rotatably supported, and the shaft support portion is formed in a long shape in a direction connecting the platen roller and the guided portion.
In this case, the gripping part is preferably a convex part provided on the outer peripheral surface.
In this case, it is preferable that the gripping portion is located at a position facing a portion where the wall surface of the cartridge mounting portion is hollowed when the cartridge mounting portion is mounted.
In this case, the cartridge case preferably exhibits an L-shaped appearance in plan view when mounted on the tape printer.
Another tape cartridge of the present invention is detachable to the cartridge mounting portion of a tape printing apparatus having a first shaft and a second shaft on a cartridge mounting portion to which the tape cartridge is detachably mounted. A tape cartridge to be mounted, comprising a cartridge case constituting an outline of the tape cartridge, a tape roll accommodated in the cartridge case, a ribbon roll accommodated in the cartridge case, and a winding core accommodated in the cartridge case, A platen roller housed in the cartridge case, and when mounted on the cartridge mounting portion, is located at a position facing the portion where the wall surface of the cartridge mounting portion is open, and grips the tape cartridge when attaching and detaching The gripping parts that enable the cartridge case to face each other The first shaft is inserted into the platen roller when mounted on the cartridge mounting portion, and the second shaft is mounted on the outer peripheral surface of the cartridge case when mounted on the cartridge mounting portion. The guided portion to be guided is formed so as to be recessed toward the platen roller side, and the guided portion has a virtual line connecting the two gripping portions with respect to the platen roller when viewed from the mounting direction of the tape cartridge. The distance between the gripping part on the opposite side and the farthest position from the platen roller in the two gripping parts and the guided part is closer to the platen roller in the two gripping parts. It is characterized in that it is disposed at a portion that is smaller than the distance between the gripping portion and the guided portion.
The following configuration may also be used.
The tape cartridge of the present invention is detachably mounted on the cartridge mounting portion of a tape printer having a first shaft and a second shaft on a cartridge mounting portion on which the tape cartridge is detachably mounted. This is a tape cartridge for holding the tape cartridge in two places on the side surfaces opposite to each other, which can be gripped with fingers when attaching and detaching, and is attached to the tape printer. In this case, the platen includes a first receiving portion into which the first shaft is inserted, and a second receiving portion into which the second shaft is inserted. The receiving unit is on the opposite side across the virtual line connecting the two gripping units with respect to the first receiving unit, and of the two gripping units, the gripping unit at a position farther from the first receiving unit The distance between is closer from the first receiving part Characterized in that it is arranged at a portion closer than the distance between the gripper position.

  According to this configuration, the second receiving unit is disposed across the imaginary line connecting the two gripping units with respect to the first receiving unit, and the second receiving unit includes the two gripping units. Among these, since the distance between the gripping part farther from the first receiving part is closer to the distance from the gripping part closer to the first receiving part, the first receiving part and the first receiving part Since the distance between the two receiving parts is increased and the diagonal positional relationship is well balanced, the force applied through the gripping part when attaching and detaching is relatively uniform on the first receiving part and the second receiving part. Works. For this reason, it is possible to smoothly attach and detach the cartridge mounting portion. Further, the first receiving portion and the second receiving portion are present in a place where they can be easily recognized at a distance apart from each other when viewed from the upper side and from the lower side, and the tape printer is placed in front of the cartridge. When the tape cartridge is picked up while looking at the mounting portion, it functions as a landmark that can easily recognize the front, back, front, back, left, and right directions. As a result, the tape cartridge can be oriented in the correct direction and mounted on the cartridge mounting portion.

  In this case, it is preferable that the second receiving portion is disposed at a portion which is the most distal from the first receiving portion when viewed from the mounting direction of the tape cartridge.

  According to this configuration, since the second receiving portion is disposed at the most distal portion across the virtual line connecting the two gripping portions with respect to the first receiving portion, the gripping portion is attached at the time of attachment / detachment. The force applied via the first and second receiving portions acts relatively uniformly on the first receiving portion and the second receiving portion. For this reason, it is possible to smoothly attach and detach the cartridge mounting portion. In addition, since the second receiving portion is disposed sufficiently apart from the first receiving portion, the mounting force and the pulling force are not easily biased. In this respect, the cartridge mounting portion can be smoothly attached and detached. Can do.

  Moreover, it is preferable that a 2nd receiving part has the through-hole formed through.

  Further, the tape cartridge includes a cartridge case, and the cartridge case has a shell structure including a top wall portion on the front side in the mounting direction, a bottom wall portion on the back side and a peripheral wall portion, and the second receiving portion is at or near the peripheral wall portion. It is preferable to provide in the part.

  According to these structures, it can respond also to the tape cartridge from which thickness differs.

  Moreover, it is preferable that a through-hole contains the 1st through-hole penetrated and formed in the top wall part, and the 2nd through-hole penetrated and formed in the bottom wall part.

  According to this configuration, it is possible to suppress squeezing of the second receiving portion with respect to the second shaft in the initial stage of attachment and the end of separation.

  Furthermore, it is preferable that the second receiving portion has a guide groove that is recessed in the outer peripheral surface of the cartridge case.

  In this case, it is preferable that the groove is recessed in such a direction that there is a wall intersecting with a virtual line connecting the first receiving portion and the second receiving portion.

  According to these configurations, the second receiving portion can be arranged as far as possible from the first receiving portion, and the squeezing of the second receiving portion with respect to the second axis can be suppressed. Therefore, the cartridge can be smoothly attached to and detached from the cartridge mounting portion.

  On the other hand, the platen is composed of a platen roller having a first receiving portion, and when the platen is mounted on the cartridge mounting portion, the platen is rotatably supported on the first shaft via the first receiving portion. Is preferred.

  In this case, the first receiving part is preferably a shaft hole.

  According to these configurations, the shaft that rotatably supports the platen roller and the first shaft can be used together, and the number of parts for the attachment / detachment guide can be reduced.

  In this case, the first receiving portion is preferably a shaft hole and a through hole.

  According to this configuration, it can also serve as a function of supporting the platen shaft.

  In this case, the first receiving part and the second receiving part are preferably guide holes.

  According to this configuration, the tape cartridge is accurately positioned on the cartridge mounting portion of the tape printer by inserting the first shaft and the second shaft into the first receiving portion and the second receiving portion, respectively. In addition, movement can be prevented during wearing.

  In this case, the second receiving part is preferably a guide groove.

  According to this configuration, the first receiving unit and the second receiving unit can be set to the farthest positional relationship, and a highly accurate positioning function can be obtained.

  In this case, the gripping part is preferably a convex part provided on the peripheral wall part.

  According to this configuration, there is a grip portion at a position where it can be easily grasped, and it is difficult for the finger to slip, and a grip with a reliable grip can be realized.

  In this case, it is preferable that the gripping portion is in a position facing the portion where the wall surface around the cartridge mounting portion is hollow.

  According to this configuration, the tape cartridge can be easily grasped and attached to and detached from the cartridge mounting portion.

It is an external appearance perspective view of the open state of the tape printer concerning an embodiment. It is the top view (a) and side view (b) of the tape cartridge which concern on embodiment. It is a top view of a cartridge mounting part. It is the perspective view which looked at the opening-and-closing lid from the back side. FIG. 2A is a plan view of the tape cartridge with the upper case and the upper case removed, and FIG. It is the perspective view which looked at the tape cartridge from the back side. It is an expansion perspective view of a cartridge mounting part. It is a top view of the tape cartridge which concerns on 1st Embodiment. It is the top view (a) of the state which mounted | wore the cartridge mounting part with the tape cartridge which concerns on 1st Embodiment, and sectional drawing (b). It is a top view of the state which mounted | wore the cartridge mounting part with the tape cartridge which concerns on 2nd Embodiment.

  Hereinafter, a tape cartridge according to an embodiment of the present invention will be described together with a tape printer to which the tape cartridge is mounted with reference to the accompanying drawings. This tape printing apparatus performs printing while feeding out a printing tape and an ink ribbon from a mounted tape cartridge, cuts a printed portion of the printing tape, and creates a label (tape piece).

[Outline of tape printer]
FIG. 1 is an external perspective view of a tape printer and a tape cartridge attached to the tape printer. As shown in the figure, the tape printer 1 includes an apparatus case 3 constituting an outer shell, a cartridge mounting part 5 to which a tape cartridge 100 is detachably mounted, and an opening / closing lid 7 for opening and closing the cartridge mounting part 5. It is equipped with. On the upper surface of the apparatus case 3, a cartridge mounting portion 5 is provided on the back side, a display 11 is provided in the center, and a keyboard 13 is provided on the front side. In the vicinity of the opening / closing lid 7, a recess 15 for hooking a finger is provided. The open / close lid 7 is opened by placing a finger on the recessed portion 15 and pulling it up. A vertical tape discharge port 17 through which the printing tape 102 is discharged is provided on the side surface (left side surface) of the device case 3.

  Further, the tape printer 1 includes a printing mechanism unit 23 having a print head 21 erected on the cartridge mounting unit 5, a tape feeding mechanism unit 25 built in the back side space of the cartridge mounting unit 5, and a tape discharge port 17. And a tape cutting mechanism 27 built in the vicinity. The user inputs print information from the keyboard 13, confirms the print information on the display 11, and then executes printing by key operation. When printing is instructed, the tape feeding mechanism unit 25 is driven, so that the printing tape 102 and the ink ribbon 110 run in parallel. Furthermore, printing is performed by transferring the ink on the ink ribbon 110 to the printing tape 102 by heat applied to the ink ribbon 110 from the printing mechanism unit 23. By this print feed, the print tape 102 is discharged from the tape discharge port 17, and when printing is completed, the tape cutting mechanism unit 27 is driven and the printed portion of the print tape 102 is cut off.

[Tape cartridge overview]
As shown in FIGS. 2 and 5, the tape cartridge 100 includes a tape roll 106 in which the printing tape 102 is wound around the tape core 104, and a ribbon roll 114 in which the ink ribbon 110 is wound around the feeding core 112. . The tape cartridge 100 also includes a winding core 116 that winds up the used ink ribbon 110, and a platen roller 120 (platen) that contacts the print head 21 and feeds the printing tape 102 and the ink ribbon 110. . Further, the tape cartridge 100 includes a cartridge case 130 that accommodates the tape roll 106, the ribbon roll 114, the winding core 116, and the platen roller 120. Thus, the tape cartridge 100 of this embodiment has a so-called shell structure in which the outer shell is covered with the cartridge case 130.

  Further, the cartridge case 130 has an insertion opening 134 into which the print head 21 is inserted when the tape cartridge 100 is attached to the tape printer 1. The tape cartridge 100 includes a tape delivery port 138 that is formed in the cartridge case 130 and through which the printing tape 102 is delivered. Although details will be described later, the tape roll 106 is rotatably supported by a cylindrical core shaft 192 protruding from the inside of the cartridge case 130.

  When the platen roller 120 and the winding core 116 are driven by the tape feeding mechanism 25, the printing tape 102 is fed out from the tape core 104, and the ink ribbon 110 is fed out from the feeding core 112. The fed printing tape 102 and ink ribbon 110 run side by side at the platen roller 120 and are used for printing by the print head 21. The feeding end portion (printed portion) of the printing tape 102 on which printing has been performed is sent out from the tape delivery port 138 toward the tape discharge port 17. On the other hand, the ink ribbon 110 wraps around the peripheral wall portion of the insertion opening 134 and is wound around the winding core 116. The tape cartridge 100 is prepared with a plurality of types having different thicknesses according to the tape width of the printing tape 102.

[Details of tape printer]
As shown in FIGS. 1 and 3, the cartridge mounting portion 5 is formed in a planar shape complementary to the planar shape of the tape cartridge 100, and the tape having the maximum thickness among a plurality of types of tape cartridges 100 that can be mounted. It has a depth corresponding to the cartridge 100 and is recessed. In this case, the mounting base 31 and the side plate portion 33 constituting the bottom plate portion of the cartridge mounting portion 5 are integrally formed (molded) with resin or the like. A slit-like tape discharge path 35 is formed between the cartridge mounting portion 5 and the tape discharge port 17, and the tape cutting mechanism portion 27 is built in this portion.

  The mounting base 31 of the cartridge mounting portion 5 has a positioning projection 41 on which the core shaft 192 is fitted and positioned, the print head 21 covered with the head cover 43, and a platen drive shaft that rotationally drives the platen roller 120. 45 and a winding drive shaft 47 that rotationally drives the winding core 116 are provided upright. A guide pin 50 is provided upright at a position diagonal to the platen drive shaft 45. Further, the mounting base 31 located in the vicinity of the winding drive shaft 47 releases the tape detection unit 51 for detecting the type (attribute information) of the printing tape 102, and the rotation stop of the feeding core 112 and the winding core 116. And a core releasing portion 53 that is provided.

  Further, the mounting base 31 is provided with a pair of small protrusions 55 at diagonal positions. In addition, a pair of latching pieces 57 for latching the intermediate part of the mounted tape cartridge 100 are provided. On the other hand, in the space on the back side of the mounting base 31, the above-mentioned tape feed mechanism 25 is built in which a motor and a gear train (both not shown) for rotating the platen drive shaft 45 and the take-up drive shaft 47 are configured. Has been. The tape feeding mechanism 25 divides the power by the gear train and rotates the platen drive shaft 45 and the take-up drive shaft 47 synchronously.

  The printing mechanism unit 23 includes a print head 21 formed of a thermal head, and a head support frame 61 that supports and rotates the print head 21. The printing mechanism unit 23 also includes a head release mechanism (not shown) that rotates the print head 21 between a printing position and a retracted position via the head support frame 61, and the print head 21 (and the head support frame 61). And a head cover 43 that covers the head.

  The head release mechanism operates in conjunction with the opening / closing of the opening / closing lid 7 and moves (rotates) the print head 21 to the printing position in conjunction with the closing operation of the opening / closing lid 7. The head release mechanism moves (rotates) the print head 21 to the retracted position in conjunction with the opening operation. The print head 21 moved to the printing position comes into contact with the platen roller 120 via the ink ribbon 110 and the print tape 102, and the print head 21 moved to the retracted position is separated from the platen roller 120. Thereby, when the tape cartridge 100 is attached or detached, interference of the print tape 102 or the ink ribbon 110 with the print head 21 is prevented.

  The print head 21 is provided with a plurality of heating elements, and the plurality of heating elements are arranged in the same direction as the axial direction of the platen roller 120. Then, printing is performed by feeding the printing tape 102 and the ink ribbon 110 and selectively driving a plurality of heating elements. The head cover 43 is formed in a substantially rectangular shape in plan view, and is formed (molded) integrally with the mounting base 31 (cartridge mounting portion 5). The head cover 43 protrudes greatly from the mounting base 31 in a vertical direction, allows the print head 21 to turn inside, and functions as a mounting guide for the tape cartridge 100 on the outside.

  The tape detection unit 51 includes a plurality of microswitches 51a, and selectively engages with a detection unit 180 of the tape cartridge 100 to be described later, and classifies the tape width, tape color, material, and the like of the printing tape 102. Is detected. Based on the detection result, the driving of the print head 21 and the tape feeding mechanism 25 is controlled.

  The core releasing portion 53 is composed of two releasing pins 53 a for the feeding core 112 and the winding core 116. Although details will be described later, the cartridge case 130 is provided with a rotation-preventing hook 206 that is hooked on the feeding core 112 and the winding core 116 (see FIG. 6). The release pin 53a is engaged with the stop hook 206, and the rotation stop of the feeding core 112 and the winding core 116 is released.

  The platen drive shaft 45 includes a platen support shaft 48 that extends long so as to pass through the platen roller 120, and a spline-shaped rotation drive shaft 49 that is rotatably supported on the base of the platen support shaft 48 ( (See FIG. 3). The rotational power of the tape feeding mechanism 25 is transmitted to the rotational drive shaft 49 and further transmitted from the rotational drive shaft 49 to the platen roller 120 (details will be described later).

  Similarly, the winding drive shaft 47 includes a fixed shaft 47a and a spline-shaped movable shaft 47b that is rotatably supported by the fixed shaft 47a. Also in this case, the rotational power of the tape feeding mechanism 25 is transmitted to the movable shaft 47b, and further transmitted from the movable shaft 47b to the winding core 116.

  When the tape cartridge 100 is mounted on the cartridge mounting portion 5, the core shaft 192 (tape core 104) is engaged with the positioning protrusion 41, the platen roller 120 is engaged with the platen drive shaft 45, and the winding drive shaft 47 is further wound. The core 116 is engaged. When the open / close lid 7 is closed, the print head 21 rotates and contacts the platen roller 120 with the print tape 102 and the ink ribbon 110 interposed therebetween, and the tape printer 1 enters a print standby state.

  As shown in FIGS. 1 and 4, the opening / closing lid 7 is attached to the apparatus case 3 so as to be rotatable, that is, to be opened and closed, via a hinge portion 71 provided on the back side. The opening / closing lid 7 has an opening / closing lid body 73 and a viewing window 75 provided at the center of the opening / closing lid body 73. The open / close lid 7 protrudes from the back surface of the open / close lid body 73 and is pivotally supported by the hinge portion 71 so as to be pivotally supported. And an actuating lever 79 for rotating the. Further, the opening / closing lid 7 protrudes on the back surface of the opening / closing lid body 73 and pushes the tape cartridge 100 into two push projections 81, and protrudes on the back surface of the opening / closing lid body 73, and has a built-in lid closing detection switch (not shown). And a pressing projection 83 for actuating (ON).

  The viewing window 75 is formed in a horizontally long shape and is made of a transparent (transparent to visible light) resin that is separate from the opening / closing lid main body 73. Through this viewing window 75, the tape cartridge 100 mounted on the cartridge mounting portion 5 can be visually recognized (type of printing tape 102 and remaining tape amount). In addition, the pair of shaft support pieces 77, the operating lever 79, the pushing protrusion 81, the pressing protrusion 83, the pressing portion 85, and the opening / closing lid body 73 are integrally formed (molded) with resin.

  The operating lever 79 protrudes greatly from the back surface of the opening / closing lid body 73 and is inserted into a slit opening 87 provided on the side of the cartridge mounting portion 5 when the opening / closing lid 7 is closed. The operating lever 79 inserted into the slit opening 87 operates the head release mechanism and rotates the print head 21. Similarly, the pressing protrusion 83 is inserted into the rectangular opening 91 adjacent to the slit opening 87 as the opening / closing lid 7 is closed, and operates (ON) the lid closing detection switch. The pushing protrusion 81 corresponds to a position in the vicinity of the platen roller 120 of the tape cartridge 100 and pushes the tape cartridge 100 so that the tape cartridge 100 is seated on the mounting base 31 of the cartridge mounting portion 5 when the opening / closing lid 7 is closed. .

[Details of tape cartridge]
Next, the tape cartridge 100 will be described in detail with reference to FIGS. 2, 5, and 6. In the description of the tape cartridge 100, taking FIG. 2 as an example, the front surface on the front side of the tape cartridge 100 in the mounting direction is “front surface”, the reverse side in the mounting direction is “back surface”, and the left side. The left side surface is referred to as the “left side surface”, the right side surface as the “right side surface”, the upper arc-shaped side surface as the “front end surface”, and the lower side surface as the “base end surface”.

  As described above, the tape cartridge 100 includes the cartridge case 130 and the tape roll 106, the ribbon roll 114, the winding core 116, and the platen roller 120 accommodated therein. Further, the tape cartridge 100 includes an insertion opening 134 formed in the cartridge case 130, a tape outlet 138 formed on the left side in the vicinity of the platen roller 120, the surface of the part in which the tape roll 106 is accommodated, the left side, And an identification seal 141 (see FIG. 1) attached over the right side surface. On the identification seal 141, the tape width, tape color, material, and the like of the printing tape 102 accommodated in the cartridge case 130 are displayed at two locations on the front surface and the left side surface.

  The cartridge case 130 constitutes an outline of the tape cartridge 100 (shell structure), and has an “L” -shaped appearance in plan view with the proximal end side of the right side surface protruding somewhat. In the front and back direction, the cartridge case 130 is composed of a lower case 150 that is the back side when mounted on the cartridge mounting portion 5 and an upper case 152 that is the front side. In the cartridge case 130 of the embodiment, the upper case 152 is formed of a transparent resin molded product, and the lower case 150 is formed of an opaque resin molded product.

  The upper case 152 is integrally formed (molded) with a top wall portion 156 that forms the surface of the cartridge case 130 and an upper peripheral wall portion 158 that is suspended from the peripheral edge of the top wall portion 156. The lower case 150 includes a bottom wall portion 160 that constitutes the back surface of the cartridge case 130, a lower peripheral wall portion 162 that is erected on the peripheral edge of the bottom wall portion 160, and a bottom wall that defines the insertion opening 134 described above. It is integrally formed (formed) with an opening peripheral wall portion 164 erected on the portion 160.

  A plurality of joint pins 170 are provided at appropriate intervals on the lower end surface of the upper peripheral wall portion 158 in the upper case 152, while a plurality of joint pins 170 are provided on the lower peripheral wall portion 162 of the lower case 150 corresponding to the plurality of joint pins 170. A joining hole 172 is provided (see FIG. 5). After setting components such as the tape roll 106 and the ribbon roll 114 in the lower case 150, the upper case 152 is joined so that the plurality of joining pins 170 are press-fitted into the plurality of joining holes 172. Assembled. Each joint hole 172 is a through hole in consideration of ease of molding.

  In a plan view, a guided portion 182 through which the guide pin 50 is inserted is provided at a position diagonal to the platen roller 120. Specifically, the guided portion 182 includes a first through hole 184 that is formed through the top wall portion 156 of the upper case 152, and a second through hole 186 that is formed through the bottom wall portion 160 of the lower case 150. (The details will be described later).

  On the other hand, on the left side surface and the right side surface of the lower case 150, a pair of latch receiving portions 174 that are latched by the pair of latch pieces 57 are provided (see FIGS. 2 and 6). The pair of latching pieces 57 on the cartridge mounting unit 5 side are latched on the pair of latching receiving portions 174 of the mounted tape cartridge 100, thereby preventing the tape cartridge 100 from being lifted. Further, a fitting small hole 176 into which the pair of small protrusions 55 are fitted with some margin is provided on the back surface of the lower case 150 (see FIG. 6). When the pair of small projections 55 on the cartridge mounting portion 5 side are fitted into the pair of fitting small holes 176 of the mounted tape cartridge 100, the tape cartridge 100 is simply positioned on the mounting base 31.

  Further, a detection target portion 180 corresponding to the tape detection portion 51 is provided on the rear surface of the lower case 150 at the left corner portion on the base end surface side (the right corner portion as viewed from the front surface side). (See FIG. 6). The detected portion 180 is configured in a portion corresponding to the plurality of microswitches 51a of the tape detecting portion 51, and a plurality of bit patterns are obtained depending on the presence or absence of the receiving holes 180a provided in this portion. That is, this bit pattern corresponds to the type of the print tape 102 described above.

  As shown in FIG. 5, a tape storage area 190 in which the tape roll 106 is widely stored is configured in the upper space (tip surface side) in the cartridge case 130. A core shaft 192 that is integrally formed (formed) with the lower case 150 is erected in the center of the tape housing area 190. The core shaft 192 is formed in a cylindrical shape, and a tape roll 106 (tape core 104) is rotatably supported on the outer peripheral surface thereof. Further, a tape guide 194 that guides the fed printing tape 102 to the platen roller 120 is erected integrally with the lower case 150 in the tape accommodating area 190 located in the vicinity of the platen roller 120.

  That is, inside the cartridge case 130, a tape feed path 196 starting from the tape roll 106 and passing through the tape guide 194 and the platen roller 120 to the tape feed outlet 138 is configured. The printing tape 102 fed out from the tape roll 106 is guided to the platen roller 120 through the tape guide 194, used for printing, and further guided from the platen roller 120 to the tape delivery port 138.

  The tape roll 106 includes a printing tape 102 and a tape core 104 and two films 198 attached to both end faces of the roll-shaped printing tape 102. The two films 198 prevent the printing tape 102 wound around the tape core 104 from being scattered. Further, although not shown in the drawing, a reverse rotation prevention mechanism is incorporated in the tape core 104. When carrying the tape cartridge 100, the reverse rotation prevention mechanism prevents the reverse rotation of the printing tape 102. On the other hand, when the tape cartridge 100 is mounted on the cartridge mounting portion 5 of the tape printer 1, the reverse rotation prevention of the reverse rotation prevention mechanism is released by the positioning protrusion 41, and the printing tape 102 can be fed.

  On the right side of the base in the cartridge case 130, a ribbon accommodating area 200 is formed adjacent to the insertion opening 134. On the right side of the ribbon receiving area 200, a feeding side bearing portion 202 that rotatably supports the ribbon roll 114 (feeding core 112) is provided, and on the left side, a winding side bearing portion that rotatably supports the winding core 116 is provided. 204 are formed integrally with the cartridge case 130, respectively. That is, the feeding side bearing portion 202 and the winding side bearing portion 204 are formed on the upper case 152 and the lower case 150, respectively.

  At the notch portions of the feeding side bearing portion 202 and the take-up side bearing portion 204 formed in the lower case 150, the rotation prevention hook 206 with the tip portion facing the feeding side bearing portion 202 and the take-up side bearing portion 204 is provided. Are integrally formed. One rotation stop hook 206 is engaged with the feeding core 112, and the other rotation stop hook 206 is engaged with the winding core 116 in a rotation stopped state.

  A first ribbon guide 210 that guides the fed ink ribbon 110 to the platen roller 120 is erected integrally with the lower case 150 in the ribbon accommodating area 200 located in the vicinity of the feeding side bearing portion 202. A plurality of second ribbon guides 212 that guide the circumference of the ink ribbon 110 are integrally formed on the outer peripheral side of the opening peripheral wall portion 164.

  That is, inside the cartridge case 130, a ribbon feed path 214 starting from the ribbon roll 114, passing through the first ribbon guide 210, the platen roller 120, and the plurality of second ribbon guides 212 to the winding core 116 is configured. Yes. The ink ribbon 110 fed out from the ribbon roll 114 is guided to the platen roller 120 through the first ribbon guide 210 and used for printing, and further from the platen roller 120 to the opening peripheral wall 164 (a plurality of second ribbon guides). 212) is wound around the winding core 116.

  The ribbon roll 114 includes an ink ribbon 110 and a feeding core 112, and an annular leaf spring 220 that applies a braking load to the feeding core 112 (see FIG. 5B). The leaf spring 220 is formed in a wave shape in the circumferential direction, and is interposed between the top wall portion 156 of the upper case 152 and the feeding core 112 in the axial direction. That is, a rotational braking load is applied to the feeding core 112 by the elastic force of the leaf spring 220. As a result, the back tension is applied to the ink ribbon 110 fed out by the take-up core 116, and the slack is prevented.

  The feeding core 112 is formed in a cylindrical shape, and a plurality of notches 222 are formed in the circumferential direction at the end portion on the lower case 150 side (see FIG. 6). The rotation stop hook 206 is engaged with and disengaged from the plurality of notches 222. The feeding-side bearing portion 202 on the lower case 150 side that supports the feeding core 112 is configured with a circular opening, whereas the feeding-side bearing portion 202 on the upper case 152 side is configured with a cylindrical protruding portion. Yes. And the said leaf | plate spring 220 is mounted | worn with this protrusion part (all refer FIG.5 (b)).

  Similarly, the winding core 116 is formed in a cylindrical shape, and a plurality of notches 224 are formed in the circumferential direction at the end portion on the lower case 150 side. The rotation stop hook 206 is engaged with and disengaged from the plurality of notches 224. A spline groove 226 is formed on the inner peripheral surface of the winding core 116 and engages with the winding drive shaft 47 by spline. Thereby, the rotational force of the winding drive shaft 47 is transmitted to the winding core 116, and the ink ribbon 110 is wound up.

  A platen accommodation area 230 is formed adjacent to the insertion opening 134 on the left side of the base in the cartridge case 130. In the center of the platen accommodation area 230, there are an oval (oval) opening lower bearing portion 234 formed in the lower case 150 (see FIG. 6), and an oval opening upper bearing portion 232 formed in the upper case 152. (See FIG. 5B). The platen roller 120 is supported by the upper bearing portion 232 and the lower bearing portion 234 so as to be rotatable and slightly laterally movable. That is, the platen roller 120 supported by the elliptical upper bearing portion 232 and the lower bearing portion 234 has a home position that engages with the platen drive shaft 45 and a sandwich position that sandwiches the printing tape 102 and contacts the tape guide 194. It is configured to be capable of lateral movement (small movement).

  By the way, the tape cartridge 100 is carried in a state in which the feeding end portion of the printing tape 102 is slightly protruded outside from the tape delivery port 138 (see FIG. 1). At that time, if a pressing force or a pulling force acts on the feeding end portion of the printing tape 102 by mistake, the platen roller 120 dragged by this moves to the clamping position. Thereby, the feeding end portion of the printing tape 102 is prevented from being drawn into the cartridge case 130 from the tape delivery port 138.

  The platen roller 120 has a cylindrical roller base 240 and a rubber roller 242 attached to the outer peripheral surface of the roller base 240. The rubber roller 242 has a length corresponding to the print head 21 in the axial direction, and the print head 21 that has moved to the print position sandwiches the print tape 102 and the ink ribbon 110 and contacts the rubber roller 242. A spline groove 244 is formed on the inner peripheral surface of the roller base 240, and the spline groove 244 is spline-engaged with the rotation drive shaft 49 of the platen drive shaft 45. Thereby, the rotational force of the platen drive shaft 45 is transmitted to the platen roller 120, and the printing tape 102 (and the ink ribbon 110) is printed and fed.

[Structure of guided portion and guide pin (first embodiment)]
Next, with reference to FIGS. 7 to 9, the guide pins 50 of the cartridge mounting portion 5 regarding the structure of the guided portion 182 (second guided portion) and the platen roller 120 of the tape cartridge 100 according to the first embodiment. The second guide pin and the structure of the platen drive shaft 45 will be described in detail. As described above, the cartridge mounting portion 5 is provided with the platen drive shaft 45 and the guide pin 50 spaced apart from each other. Correspondingly, the platen roller 120 and the guided portion 182 are provided on the tape cartridge 100. Is provided.

  As shown in FIGS. 7 and 9, the platen drive shaft 45 includes a platen support shaft 48 (first guide pin) erected on the device frame 260 located below the mounting base 31, and a lower portion of the platen support shaft 48. And a rotation drive shaft 49 supported rotatably. The platen support shaft 48 is fixed to the apparatus frame 260 in a cantilever state and extends through the mounting base 31 in the attaching / detaching direction of the tape cartridge 100. The platen support shaft 48 extends to substantially the same height as the head cover 43.

  When the tape cartridge 100 is mounted on the cartridge mounting portion 5, the platen support shaft 48 is inserted into the roller base body 240 of the platen roller 120. For this reason, the platen support shaft 48 (platen drive shaft 45) supports the platen roller 120 rotatably, and also functions as an attachment / detachment guide for the tape cartridge 100 via the platen roller 120.

  The guide pin 50 is erected on the mounting base 31 of the cartridge mounting portion 5 and extends in the attaching / detaching direction of the tape cartridge 100 in the same manner as the platen support shaft 48. That is, the guide pin 50 is formed (formed) integrally with the mounting base 31 and extends to substantially the same height as the platen support shaft 48. In this case, the guide pin 50 and the platen support shaft 48 have a length corresponding to the thickest tape cartridge 100. Further, the tip portion of the guide pin 50 is chamfered in a hemispherical shape in order to improve the mountability of the tape cartridge 100.

  When the tape cartridge 100 is mounted on the cartridge mounting portion 5, the guide pin 50 is inserted into the guided portion 182 of the cartridge case 130. Thereby, the guide pin 50 functions as an attachment / detachment guide for the tape cartridge 100 via the guided portion 182. The guide pin 50 may also be configured to stand on the apparatus frame 260 in the same manner as the platen support shaft 48.

  On the other hand, as shown in FIGS. 8 and 9, the tape cartridge 100 is provided with a platen roller 120 so as to be supported by the upper bearing portion 232 of the upper case 152 and the lower bearing portion 234 of the lower case 150. ing. Further, the tape cartridge 100 is provided with a guided portion 182 having a first through hole 184 penetratingly formed in the upper case 152 and a second through hole 186 penetratingly formed in the lower case 150.

  As described above, the platen roller 120 includes the roller base body 240 and the rubber roller 242. The roller base 240 includes a cylindrical roller holding portion 300 (first guided portion) that holds the rubber roller 242 and an annular engagement portion 302 that has a spline groove 244 that is connected to the lower side of the roller holding portion 300. It is integrally formed. Further, the roller base 240 is supported by the upper bearing portion 232 and the lower bearing portion 234 of the cartridge case 130 with some margin, and is supported by a platen support shaft 48 inserted into the roller holding portion 300 (the shaft hole thereof). It is designed to be positioned.

  The first through hole 184 of the guided portion 182 is formed in the top wall portion 156 located in the vicinity of the upper peripheral wall portion 158 of the upper case 152. Similarly, the second through hole 186 is formed in the bottom wall portion 160 in the vicinity of the lower peripheral wall portion 162 of the lower case 150. That is, the guided portion 182 is such that the guide pin 50 inserted through the guided portion 182 is positioned in the gap between the tape roll 106 and the upper peripheral wall portion 158 and the lower peripheral wall portion 162, and also follows the upper peripheral wall portion 158 and the lower peripheral wall portion 162. Is formed. When the upper peripheral wall portion 158 and the lower peripheral wall portion 162 are formed thick, the guided portion 182 may be formed through the upper peripheral wall portion 158 and the lower peripheral wall portion 162.

  When the first through hole 184 and the second through hole 186 are combined with the upper bearing portion 232 and the lower bearing portion 234 (the annular engagement portion 302 in which the spline groove 244 is formed) of the platen roller 120, the upper case 152 is seen. Whether viewed from the side or the lower case 150 side, it exists in a place where it is easy to recognize at a distance away from each other. Therefore, when the tape printing apparatus 1 is placed in front of the user and the tape cartridge 100 is picked up while looking at the cartridge mounting portion 5, the front and back sides thereof (the spline groove 244 is easy to identify because the appearance is different from a simple hole), It functions as a landmark that can easily recognize the front-rear and left-right orientations. As a result, the tape cartridge 100 can be oriented in the correct direction and mounted on the cartridge mounting portion 5.

  Further, the tape cartridge 100 has a pair of finger hooking projections 304 (gripping portions) on both the left and right side surfaces (surfaces opposite to each other that can be gripped) of the cartridge case 130, so that the fingers are difficult to slip when gripping and gripping is ensured. To be able to. The pair of finger hooking protrusions 304 are integrally formed on the left and right outer surfaces of the lower peripheral wall portion 162 of the lower case 150.

  However, the finger hooking protrusion 304 is not always necessary. By providing the recessed portion 16 in a part of the left and right sides of the side plate portion 33 of the cartridge mounting portion 5 of the tape printer 1, the upper portion of the tape cartridge 100 facing the recessed portion 16 is provided. The portion of the peripheral wall portion 158 can also be used as a gripping portion as it is. In that case, the grip force when gripping is somewhat inferior, but the design is neat. As described above, the tape cartridge 100 includes the first through hole 184 and the second through hole 186 and the upper bearing portion 232 and the lower bearing portion 234 (the annular engagement portion 302 having the spline groove 244 formed therein) as the landmark. The front / back, front / rear / right / left orientations can be recognized. Therefore, when the tape cartridge 100 is mounted on the cartridge mounting portion 5 of the tape printing apparatus 1, the tape cartridge 100 inevitably corresponds to the recessed portions 16 on the left and right of the side plate portion 33 of the cartridge mounting portion 5 regardless of the presence or absence of the finger hooking protrusion 304. The position of the upper peripheral wall portion 158 of the tape cartridge 100 to be used is used as the grip portion.

  In the tape cartridge 100 configured as described above, as shown in FIGS. 8 and 9, the guided portion 182 has a pair of finger hooking protrusions 304 (gripping portions) with respect to the platen roller 120 in plan view (viewed from the attaching / detaching direction). Is disposed at a distal portion of the cartridge case 130 which is the most distal across the virtual line L1 connecting the two. The distance between the guided portion 182 and the finger hooking protrusion 304 corresponding to the right gripping portion in FIGS. 8 and 9 (the gripping portion far from the platen roller 120) is the same as that of the guided portion 182 and FIGS. 9, the distance is shorter than the distance from the finger hooking projection 304 (the gripping part closer to the platen roller 120) corresponding to the left gripping part. This positional relationship is such that when the tape cartridge 100 is attached to or detached from the cartridge mounting portion 5 of the tape printer 1 while gripping the two finger hooking protrusions 304 (gripping portions) with fingers, Unbalanced insertion is unlikely to occur. In addition, the platen roller 120 and the guided portion 182 are visually identifiable at positions away from each other, so that the direction in which the tape cartridge 100 is mounted is mistakenly recognized. There is no worry.

  Corresponding to the arrangement positions of the platen roller 120 and the guided portion 182, the platen support shaft 48 (platen drive shaft 45) and the guide pin 50 of the cartridge mounting portion 5 are respectively disposed. Further, positional errors between the platen roller 120 and the guided portion 182 and the platen support shaft 48 and the guide pin 50 in manufacturing are absorbed by the platen roller 120 being supported by the cartridge case 130 with a margin. Is done.

[Structure of guided portion and guide pin (second embodiment)]
Next, referring to FIG. 10, the structures of the guided portion 182A and the platen roller 120 of the tape cartridge 100A according to the second embodiment will be described in detail together with the structures of the guide pin 50 and the platen drive shaft 45 of the cartridge mounting portion 5. explain. In the second embodiment, parts different from the first embodiment will be mainly described.

  As shown in FIG. 10, the guided portion 182 </ b> A of the tape cartridge 100 </ b> A according to the second embodiment is recessed as a groove on the outer peripheral surface of the cartridge case 130. Specifically, the guided portion 182A is formed so as to be recessed substantially semicircularly toward the platen roller 120 side in the upper peripheral wall portion 158 of the lower case 150 and the lower peripheral wall portion 162 of the lower case 150. Yes. The guided portion 182A as the groove is recessed in such a direction that there is a wall at a position intersecting with the virtual line L2, considering the virtual line L2 connecting the platen roller 120 and the guided portion 182A. . For this reason, the wall is effectively guided by this wall during attachment and detachment.

  Also in this case, the guided portion 182A is disposed at the distal portion of the cartridge case 130 that is farthest from the platen roller 120 across the imaginary line L1 connecting the pair of finger hooking protrusions 304. Corresponding to the arrangement positions of the platen roller 120 and the guided portion 182A, the platen support shaft 48 (platen drive shaft 45) and the guide pin 50 of the cartridge mounting portion 5 are disposed.

  As described above, the guided portions 182 and 182A are disposed at the distal portion of the cartridge case 130, which is the most distal to the platen roller 120 across the virtual line L1 connecting the pair of finger hooking protrusions 304. Therefore, the tape cartridge 100 can be gripped by the two finger hooking protrusions 304 in the correct orientation using the platen roller 120 and the guided portions 182 and 182A as landmarks. Further, when the tape cartridge 100 is attached to or detached from the cartridge mounting portion 5 of the tape printer 1, the force applied to the tape cartridge 100, 100A via the pair of finger hooking projections 304 is applied to the guided portions 182, 182A and the platen roller 120. By acting relatively uniformly, the posture inclination of the tape cartridge 100 and the imbalance of how to apply force are unlikely to occur, and smooth attachment / detachment without catching is possible. That is, when attaching and detaching with the orientation correct, the attaching and detaching force can be applied uniformly to the guided portions 182 and 182A and the platen roller 120 having a large frictional resistance. For this reason, the tape cartridges 100 and 100A are not inclined, and the tape cartridges 100 and 100A can be smoothly attached to and detached from the cartridge mounting portion 5.

  In addition, since the guided portions 182 and 182A are arranged sufficiently separated from the platen roller 120, the mounting force and the pulling force are not easily biased. , 100A can be smoothly attached and detached. In addition, although the guide pin 50 and the to-be-guided part 182 of this embodiment were circular in cross section, a cross-sectional semicircle, a cross-sectional polygon, etc. may be sufficient. When a feed roller is provided separately from the platen roller 120 (platen) or in place of the platen roller 120, the feed roller support shaft functions as a detachable guide instead of the platen support shaft 48. You may let them.

  DESCRIPTION OF SYMBOLS 5 ... Cartridge mounting part, 50 ... Guide pin, 100A ... Tape cartridge, 120 ... Platen roller, 130 ... Cartridge case, 182A ... Guided part, 232 ... Upper bearing part, 304 ... Finger hooking protrusion, L1 ... Virtual line, L2 ... Virtual line

Claims (10)

A tape cartridge that is detachably mounted on the cartridge mounting portion of a tape printer having a first shaft and a second shaft on a cartridge mounting portion on which the tape cartridge is detachably mounted. ,
When attaching and detaching, it has a gripping part that allows the tape cartridge to be gripped at two locations that face each other,
A platen roller into which the first shaft is inserted when mounted on the cartridge mounting portion; and a guided portion that is guided by the second shaft when being attached to and detached from the cartridge mounting portion. Prepared,
Seen from the mounting direction of the tape cartridge, the guided portion is
The gripping portion and the guided portion that are opposite to the platen roller across an imaginary line that connects the two gripping portions and that are farther from the platen roller among the two gripping portions. The outer periphery of the tape cartridge is configured such that the distance between the grip portion and the guided portion at a position closer to the platen roller is smaller than the distance between the grip portion and the guided portion. A tape cartridge which is recessed in the outer peripheral surface of the cartridge case.   The tape cartridge according to claim 1, wherein the guided portion is recessed in a direction in which there is a wall that intersects with an imaginary line connecting the platen roller and the guided portion.   When viewed from the tape cartridge mounting direction, the guided portion is disposed at the most distal portion across an imaginary line connecting the two gripping portions from the platen roller. The tape cartridge according to claim 1 or 2.   The tape cartridge according to claim 1 or 2, wherein the guided portion is formed so as to be recessed in a substantially semicircular shape on the outer peripheral surface toward the platen roller side. The cartridge case is composed of a lower case which is the back side in the mounting direction and an upper case which is the front side in the mounting direction when the tape cartridge is mounted on the cartridge mounting portion.
The guided portion is formed so as to be recessed in a substantially semicircular shape toward an upper peripheral wall portion of the upper case and a lower peripheral wall portion of the lower case toward the platen roller side. The tape cartridge according to 1 or 2. The cartridge case is provided with a shaft support portion on which the platen roller is rotatably supported,
The tape cartridge according to any one of claims 1 to 5, wherein the shaft support portion is formed in a long shape in a direction connecting the platen roller and the guided portion.   The tape cartridge according to claim 1, wherein the grip portion is a convex portion provided on the outer peripheral surface.   The tape cartridge according to claim 7, wherein the grip portion is located at a position facing a portion where a wall surface of the cartridge mounting portion is hollowed when being mounted on the cartridge mounting portion. A tape cartridge that is detachably mounted on the cartridge mounting portion of a tape printer having a first shaft and a second shaft on a cartridge mounting portion on which the tape cartridge is detachably mounted. ,
A cartridge case constituting the outer shell of the tape cartridge;
A tape roll housed in the cartridge case;
A ribbon roll housed in the cartridge case;
A winding core housed in the cartridge case;
A platen roller housed in the cartridge case,
When the cartridge mounting portion is mounted, a gripping portion that is in a position facing a portion where the wall surface of the cartridge mounting portion is hollowed out and capable of gripping the tape cartridge when the cartridge is attached or detached, Have two locations on the side of the cartridge case facing each other,
When mounted on the cartridge mounting portion, the first shaft is inserted into the platen roller,
A guided portion that guides the second shaft when mounted on the cartridge mounting portion is formed on the outer peripheral surface of the cartridge case so as to be recessed toward the platen roller,
The guided portion is opposite to the platen roller across an imaginary line connecting the two gripping portions when viewed from the mounting direction of the tape cartridge, and of the two gripping portions. The distance between the grip portion and the guided portion at a position farther from the platen roller is between the grip portion and the guided portion at a position closer to the platen roller among the two grip portions. A tape cartridge, wherein the tape cartridge is disposed at a position smaller than the distance of. The tape cartridge according to claim 9 , wherein the cartridge case has an L-shaped appearance in a plan view when mounted on the tape printer.

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