This application is the U.S. National Phase under 35 U.S.C. §371 of International Application No. PCT/JP2015/001549 filed on Mar. 19, 2015, which in turn claims the benefit of Japanese Application No. 2014-060911 filed on Mar. 24, 2014, Japanese Application No. 2014-060913 filed on Mar. 24, 2014, Japanese Application No. 2014-157991 filed on Aug. 1, 2014, and Japanese Application No. 2015-008460 filed on Jan. 20, 2015, the disclosures of which are expressly incorporated by reference herein.
The present invention relates to a tape printing device and a tape printing system for printing on a print tape of a loaded tape cartridge.
As a tape printing device of this type in which a tape cartridge is loaded, the following device is known (see JP-2012-20543).
This tape cartridge includes a tape member made up of a print tape wound on a tape core, a ribbon member made up of an ink ribbon wound on a ribbon reel-off core, a ribbon take-up core which takes up the ink ribbon after use, a platen roller which reels off and feeds the print tape from the tape member, and a cartridge case which accommodates the tape member, the ribbon member, the ribbon take-up core and the platen roller.
Meanwhile, the tape printing device has a cartridge loading section in which the tape cartridge is loaded in an unloadable manner. Also, in the cartridge loading section, a positioning protrusion for positioning the tape core, a print head covered by a head cover, a platen drive shaft which causes the platen roller to rotate, a ribbon take-up drive shaft which takes up the ink ribbon via the ribbon take-up core are provided on a bottom plate. Also, in the space below the cartridge loading section, a motor-driven tape feed mechanism which causes the platen drive shaft and the ribbon take-up drive shaft to rotate is arranged inside.
In such a tape cartridge according to the related art, in the state of being loaded in cartridge loading section, a rotational force acts on the platen roller from the platen drive shaft in feeding the print tape and the ink ribbon. Similarly, a rotational force acts on the ribbon take-up core from the ribbon take-up drive shaft in the take-up of the ink ribbon. Due to the friction between the platen roller and its bearing part, a part of the rotational force inputted to the platen roller acts as a moment of rotation on the cartridge case via the bearing part. Similarly, a part of the rotational force inputted to the ribbon take-up core acts as a moment of rotation on the cartridge case.
In this case, the platen roller rotates clockwise as viewed in a plan view, and the ribbon take-up core rotates counterclockwise as viewed in a plan view. Therefore, a force resulting from combining the moment of rotation on the platen roller side and the moment of rotation on the ribbon take-up core side acts on the tape cartridge. Since this resultant force has no vector components such that the respective rotational forces cancel each other on an imaginary line connecting the platen roller and the ribbon take-up core, the rotational forces are superimposed on each other on the imaginary line in a direction intersecting with the imaginary line, thus acting as the largest force. Therefore, when the tape printing device is driven for printing, there is a risk of the tape cartridge being misaligned inside the cartridge loading section. Also, the misalignment of the tape cartridge causes misalignment with respect to the print head and therefore adversely affects the print quality.
An object of the invention is to provide a tape printing device and a tape printing system in which the misalignment of the loaded tape cartridge can be restrained.
A tape printing device according to the invention includes: a cartridge loading section in which a tape cartridge is loaded; a first output unit which is provided in the cartridge loading section and outputs a forward rotational force to feed a print tape of the loaded tape cartridge; a second output unit which is provided in the cartridge loading section and outputs a reverse rotational force to take up an ink ribbon of the loaded tape cartridge; and a main body-side abutting portion which is provided in the cartridge loading section and abuts against the loaded tape cartridge so as to resist the rotational forces generated on the tape cartridge by the first output unit and the second output unit.
In this case, it is preferable that the main body-side abutting portion is arranged on or near an imaginary line connecting the first output unit and the second output unit.
According to this configuration, the tape cartridge abuts against the main body-side abutting portion so as to resist the rotational forces generated on the tape cartridge by the first output unit and the second output unit. Therefore, the force generated by the rotational forces of the first output unit and the second output unit causes the tape cartridge and the main body-side abutting portion of the cartridge loading section to abut against each other with a strong force and stabilizes the positional relation with each other. Also, since the main body-side abutting portion exists substantially on the imaginary line (including its vicinity) connecting the first output unit and the second output unit, there are no vector components such that the respective rotational forces cancel each other at this position on the imaginary line and therefore the respective rotational forces have a maximum value. That is, using a rotational force which causes misalignment, the misalignment of the tape cartridge inside the cartridge loading section can be restrained. Therefore, the print quality can be stabilized.
Also, it is preferable that the first output unit has a platen drive shaft which rotationally drives a platen roller of the tape cartridge for feeding the print tape, and that the second output unit has a take-up drive shaft which rotationally drives a take-up core of the tape cartridge for taking up the ink ribbon.
According to this configuration, even when the tape cartridge receives forward and reverse rotational forces from the platen drive shaft and the take-up drive shaft, the misalignment of the tape cartridge can be restrained by the main body-side abutting portion.
Also, it is preferable that the tape printing device further includes a print head unit which is provided in the cartridge loading section and performs printing on the print tape, and a head cover which covers the print head unit, and that the main body-side abutting portion is provided in a protruding manner in a corner of the head cover and abuts against a corner of an opening circumferential wall portion of the tape cartridge where the head cover is inserted.
According to this configuration, as the main body-side abutting portion provided in a protruding manner in the corner of the head cover and the corner of the opening circumferential wall portion of the tape cartridge mesh with each other, misalignment in a direction intersecting with the protruding main body-side abutting portion can be restrained as well.
In this case, it is preferable that the print head unit has a print head and a swivel support shaft which supports the print head in such a way as to be able to swivel between a printing position and a retreat position, that the head cover has a first cover sidewall and a second cover sidewall which cover the side of the swivel support shaft and meet each other, and that the main body-side abutting portion is provided in a protruding manner in a corner where the first cover sidewall and the second cover sidewall meet each other.
According to this configuration, since the main body-side abutting portion is provided in a protruding manner in the high-strength corner between the first cover sidewall and the second cover sidewall, this corner can be made to function as a reinforcing part of the main body-side abutting portion. Therefore, even when the main body-side abutting portion has a small cross-sectional area, the strength of the main body-side abutting portion can be maintained in order to resist the above rotational forces.
In this case, it is preferable that a cartridge-side abutting portion is provided in a recessed manner in the corner of the opening circumferential wall portion, corresponding to the main body-side abutting portion, and that the main body-side abutting portion is relatively fitted with the cartridge-side abutting portion.
According to this configuration, the tape cartridge can be positioned in the cartridge loading section via the recessed/protruding meshed shape of the cartridge-side abutting portion and the main body-side abutting portion. Also, even if a force other than the above rotational forces acts, the misalignment of the tape cartridge in the cartridge loading section can be prevented.
In this case, it is preferable that the main body-side abutting portion has, in the corner, a first abutting protrusion provided in a protruding manner on the first cover sidewall, and a second abutting protrusion provided in a protruding manner on the second cover sidewall, and that the first abutting protrusion is fitted with a first abutting recess of the cartridge-side abutting portion, whereas the second abutting protrusion is fitted with a second abutting recess on the cartridge-side abutting portion.
According to this configuration, with the first abutting protrusion and the second abutting protrusion, the tape cartridge can be accurately positioned in the cartridge loading section. Also, even if a force other than the above rotational forces acts, the misalignment of the tape cartridge in the cartridge loading section can be prevented.
Meanwhile, it is preferable that the tape printing device further includes a guide protrusion which is provided in a protruding manner on an outer circumferential surface of the head cover and guides the loading of the tape cartridge via a recess to be guided which is formed in the tape cartridge.
According to this configuration, the tape cartridge is guided by the guide protrusion provided in a protruding manner on the outer circumferential surface of the head cover, in the loading into the cartridge loading section. Therefore, the tape cartridge can be smoothly loaded in a correct loading posture. Also, the tape cartridge can be smoothly loaded even if a large space is not provided between the head cover and the tape cartridge. Therefore, the entry of dust and misalignment can be restrained without impairing the guiding function for the loading into the cartridge loading section.
In this case, it is preferable that the recess to be guided is relatively fitted with the guide protrusion.
According to this configuration, the tape cartridge can be positioned in the cartridge loading section via the guide protrusion and the recess to be guided. Thus, the print quality can be stabilized.
Also, it is preferable that the head cover is situated on a back side of the print head, and further includes a third cover sidewall opposite the first cover sidewall, and a fourth cover sidewall opposite the second cover sidewall, that the third cover sidewall extends in a direction that is the same as a direction of feeding the print tape, and that the guide protrusion has a third protrusion provided in a protruding manner on an outer surface of the third cover sidewall.
Incidentally, as the print head unit moves and presses the platen roller provided in the tape cartridge, a pressing force acts on the tape cartridge via the platen roller.
According to this configuration, since the tape cartridge is positioned by the guide protrusion of the third cover sidewall situated on the back side of the print head unit, the pressing force of the print head unit is received by the guide protrusion via the tape cartridge. That is, since the pressing force of the print head unit is absorbed by the head cover, which covers the print head unit, this pressing force does not cause any misalignment of the tape cartridge. Therefore, the print quality can be stabilized.
Moreover, it is preferable that the guide protrusion has a second protrusion provided in a protruding manner on an outer surface of the second cover sidewall, and a fourth protrusion provided in a protruding manner on an outer surface of the fourth cover sidewall.
Incidentally, as the platen roller nips the print tape and the ink ribbon with the print head unit and starts rotating (tape feeding), a rotational force around the platen roller acts on the cartridge case.
According to this configuration, since the tape cartridge is positioned by the second protrusion and the fourth protrusion, the rotational force around the platen roller is received by the second protrusion and the fourth protrusion spaced apart from each other, via the tape cartridge. That is, since the rotational force around the platen roller is restrained by the head cover, the misalignment of the tape cartridge due to this rotational force is retrained. Therefore, the print quality can be stabilized.
A tape printing system according to the invention includes: the above tape printing device; and a tape cartridge loaded in the cartridge loading section in an unloadable manner.
According to this configuration, since the misalignment of the tape cartridge loaded in the cartridge loading section of the tape printing device is restrained, the print quality in the tape printing device can be stabilized.
Hereinafter, a tape printing device and a tape printing system according to an embodiment of the invention will be described, referring to the accompanying drawings. This tape printing device is configured to perform printing while reeling off a print tape and an ink ribbon from a tape cartridge loaded therein, and cut a printed part of the print tape, thus preparing a label (tape piece). Also, the tape printing system is made up of this tape printing device and a tape cartridge loaded and used therein.
[Outline of Tape Printing Device]
Also, the tape printing device 1 includes a print mechanism section 23 having a print head 21 provided upright in the cartridge loading section 5, a tape feed mechanism section 25 provided inside the space on the back of the cartridge loading section 5, and a tape cutting mechanism section 27 provided inside near the tape discharge port 17. The user inputs print information from the keyboard 13, confirms the print information on the display 11, and subsequently executes printing by a key operation. As a print command is given, the tape feed mechanism section 25 is driven, thus causing the print tape 102 and an ink ribbon 110 to travel in parallel. Moreover, due to the heat applied to the ink ribbon 110 from the print mechanism section 23, the ink of the ink ribbon 110 is thermally transferred to the print tape 102, thus carrying out printing. By this print feed, the print tape 102 is discharged from the tape discharge port 17. When the printing is completed, the tape cutting mechanism section 27 is driven, thus cutting the printed part of the print tape 102.
[Outline of Tape Cartridge]
As shown in
Also, in the tape cartridge 100, an insertion opening 134 in which the print head 21 is inserted when the tape cartridge 100 is loaded in the tape printing device 1 is formed in the cartridge case 130. Also, the tape cartridge 100 has a tape outlet port 138 which is formed in the cartridge case 130 and through which the print tape 102 is sent out. The insertion opening 134 may be a through-hole or may be a pouch-like hole. Also, as will be described in detail later, the tape roll 106 is rotatably supported on a cylindrical core shaft 192 provided in a protruding manner on the inside of the cartridge case 130.
As the platen roller 120 and the take-up core 116 are driven by the above tape feed mechanism section 25, the print tape 102 is reeled off from the tape core 104, and the ink ribbon 110 is reeled off from the reel-off core 112. The print tape 102 and the ink ribbon 110, thus reeled off, travel in parallel at the part of the platen roller 120 and are used for printing by the print head 21. The reel-off end (printed part) of the print tape 102 where printing has been done is sent out toward the tape discharge port 17 from the tape outlet port 138. Meanwhile, the ink ribbon 110 travels around a circumferential wall part of the insertion opening 134 and is taken up on the take-up core 116. As the tape cartridge 100, a plurality of types with different thicknesses is prepared according to the tape widths of the print tape 102.
[Details of Tape Printing Device]
As shown in
On the loading base 31 of the cartridge loading section 5, a positioning protrusion 41 with which the core shaft 192 is fitted and positioned, the print head 21 covered by a head cover 43, a platen drive shaft 45 which rotationally drives the platen roller 120, and a take-up drive shaft 47 which rotationally drives the take-up core 116 are provided upright. Also, on the loading base 31, a tape detection section 51 which detects the type (attribute information) of the print tape 102, and a core release section 53 which cancels the rotation stopper of the reel-off core 112 and the take-up core 116 are provided near the take-up drive shaft 47.
Moreover, a pair of small protrusions 55 is provided at diagonal positions on the loading base 31, and in addition, a pair of hook pieces 57 which hooks a middle part of the loaded tape cartridge 100 is provided. Then, in the space on the back of the loading base 31, the above tape feed mechanism section 25 made up of a motor and a gear train (neither being illustrated) or the like for rotating the platen drive shaft 45 and the take-up drive shaft 47 is arranged inside. The tape feed mechanism section 25 performs power branching via the gear train and thus causes the platen drive shaft 45 and the take-up drive shaft 47 to rotate synchronously.
The print mechanism section 23 has the print head 21 made up of a thermal head, and a head support frame 61 which supports the print head 21 and causes the print head 21 to swivel via a swivel support shaft 63. Also, the print mechanism section 23 has a head release mechanism (not illustrated) which causes the print head 21 to swivel between a printing position and a retreat position via the head support frame 61, and the head cover 43 covering the print head 21 (and the head support frame 61).
The head release mechanism is actuated, interlocked with the opening/closing of the above open/close cover 7, and causes the print head 21 to move (swivel) to the printing position, interlocked with the closing operation of the open/close cover 7. Also, the head release mechanism causes the print head 21 to move (swivel) to the retreat position, interlocked with the opening operation. The print head 21, having moved to the printing position, abuts against the platen roller 120 via the ink ribbon 110 and the print tape 102. The print head 21, having moved to the retreat position, is spaced apart from the platen roller 120. Thus, the print tape 102 and the ink ribbon 110 are prevented from interfering with the print head 21 at the time of loading or unloading the tape cartridge 100.
A plurality of heat generating elements is provided in the print head 21, and the plurality of heat generating elements is arrayed in the same direction as the axial direction of the platen roller 120. Then, printing is carried out by feeding the print tape 102 and the ink ribbon 110 and selectively driving the plurality of heat generating elements.
The head cover 43 is formed in a substantially rectangular shape, as viewed in a plan view, and is integrally formed (molded) with the above loading base 31 (cartridge loading section 5). Also, the head cover 43 vertically largely protrudes from the loading base 31, allows the print head 21 to swivel inside the head cover 43, and functions on its outside as a loading guide for the tape cartridge 100. As will be described in detail later, the head cover 43 further includes a main body-side abutting portion 65 provided in such a way as to protrude outward, on a corner 270 on the side of the above swivel support shaft 63.
The tape detection section 51 is made up of a plurality of microswitches 51a, is selectively engaged with a section to be detected 180 of the tape cartridge 100, described later, and detects the type including tape width, tape color, material and the like of the print tape 102. Then, on the basis of the result of the detection, the driving of the print head 21 and the tape feed mechanism section 25 is controlled. The core release section 53 is made up of two cancellation pins 53a for the reel-off core 112 and the take-up core 116. As will be described in detail later, rotation stopper hooks 206 (see
The platen drive shaft 45 has a fixed shaft 45a extending to be long enough to be inserted through the platen roller 120, and a spline-shaped movable shaft 45b rotatably axially supported at a proximal part of the fixed shaft 45a. The rotational power of the tape feed mechanism section 25 is transmitted to this movable shaft 45b and further transmitted from the movable shaft 45b to the platen roller 120. Similarly, the take-up drive shaft 47 has a fixed shaft 47a and a spline-shaped movable shaft 47b rotatably axially supported on the fixed shaft 47a. In this case, too, the rotational power of the tape feed mechanism section 25 is transmitted to the movable shaft 47b and further transmitted from the movable shaft 47b to the take-up core 116.
When the tape cartridge 100 is loaded in the cartridge loading section 5, the core shaft 192 (tape core 104) is engaged with the positioning protrusion 41, and the platen roller 120 is engaged with the platen drive shaft 45. Moreover, the take-up core 116 is engaged with the take-up drive shaft 47. Then, as the open/close cover 7 is closed, the print head 21 swivels and abuts against the platen roller 120 via the print tape 102 and the ink ribbon 110. Thus, the tape printing device 1 enters into a print standby state.
As shown in
The view window 75 is formed to be laterally long and made of a transparent resin (transparent to visible rays) as a separate member from the open/close cover main body 73. Through this view window 75, the tape cartridge 100 loaded in the cartridge loading section 5 can be visually confirmed (the type of the print tape 102 and the amount of tape left). Also, the pair of shaft support pieces 77, the actuation lever 79, the two push-in protrusions 81 and the press protrusion 83, and the open/close cover main body 73 are integrally formed (molded) of a resin.
The actuation lever 79 protrudes largely from the back of the open/close cover main body 73. With the closing of the open/close cover 7, the actuation lever 79 is inserted in a slit opening 87 provided to the lateral side of the cartridge loading section 5. The actuation lever 79 inserted in the slit opening 87 actuates the above head release mechanism and causes the print head 21 to swivel. Similarly, with the closing of the open/close cover 7, the press protrusion 83 is inserted in a rectangular opening 91 next to the slit opening 87 and actuates (for example, turns “ON”) the cover closing detection switch.
One push-in protrusion 81 corresponds to a position near the platen roller 120 of the tape cartridge 100. The other push-in protrusion 81 corresponds to a position directly above the above tape detection section 51. As the open/close cover 7 is closed, the two push-in protrusions 81 push in the tape cartridge 100 so that the tape cartridge 100 sits on the loading base 31 of the cartridge loading section 5, and the push-in protrusions 81 also prevent the tape cartridge 100 from floating up.
[Details of Tape Cartridge]
Next, the tape cartridge 100 will be described in detail, referring to
The tape cartridge 100 includes the cartridge case 130, and the tape roll 106, the ribbon roll 114, the take-up core 116 and the platen roller 120 accommodated therein, as described above. Also, the tape cartridge 100 has the insertion opening 134 formed in the cartridge case 130, the tape outlet port 138 formed on the left lateral side, near the platen roller 120, and an identification seal 141 (see
The cartridge case 130 forms the outer shell of the tape cartridge 100 (shell structure) and has an “L”-shaped appearance as viewed in a plan view, with the proximal side part on the right lateral side slightly protruding. In the front-back direction, the cartridge case 130 is formed by a lower case 150 which comes to the rear side when the tape cartridge is loaded in the cartridge loading section 5, and an upper case 152 which comes to the forward side. In the cartridge case 130 in this embodiment, the upper case 152 is formed by a molded member of a transparent resin, and the lower case 150 is formed by a molded member of an opaque resin.
The upper case 152 is integrally formed (molded) by a top wall portion 156 forming the front side of the cartridge case 130, and an upper circumferential wall portion 158 suspended on a circumferential edge part of the top wall portion 156. Meanwhile, the lower case 150 is integrally formed (molded) by a bottom wall portion 160 forming the back side of the cartridge case 130, a lower circumferential wall 162 provided upright on a circumferential edge part of the bottom wall portion 160, and an opening circumferential wall portion 164 provided upright on the bottom wall portion 160 so as to define the above insertion opening 134.
The insertion opening 134 defined by the opening circumferential wall portion 164 is the part in which the head cover 43 of the cartridge loading section 5 is inserted, and has a cartridge-side abutting portion 166 corresponding to the above main body-side abutting portion 65 provided on the head cover 43, as described below. As the tape cartridge 100 is loaded in the cartridge loading section 5, the cartridge-side abutting portion 166 of the tape cartridge 100 abuts against the main body-side abutting portion 65 of the head cover 43, and the tape cartridge 100 is thus positioned in the cartridge loading section 5 (described in detail later).
A plurality of joint pins 170 is provided at a proper interval on a lower end surface of the upper circumferential wall portion 158 of the upper case 152, whereas a plurality of joint holes 172 corresponding to the plurality of joint pins 170 is provided in the lower circumferential wall 162 of the lower case 150 (see
Meanwhile, a pair of hook receiving portions 174 to be hooked on the above pair of hook pieces 57 is provided on the left lateral side and the right lateral side of the lower case 150 (see
Moreover, on the back side of the lower case 150, the section to be detected 180 corresponding to the above tape detection section 51 is provided at a position in the left corner on the proximal side (right corner as viewed from the front side) (see
As shown in
That is, inside the cartridge case 130, a tape feed path 196 is formed, starting at the tape roll 106 and reaching the tape outlet port 138 via the tape guide 194 and the platen roller 120. The print tape 102 reeled off from the tape roll 106 is guided to the platen roller 120 via the tape guide 194, used for printing there, and further guided from the platen roller 120 to the tape outlet port 138.
The tape roll 106 has the print tape 102 and the tape core 104, and also has two films 198 bonded to both end surfaces of the print tape 102 in a roll shape. The two films 198 prevent the print tape 102 wound on the tape core 104 from unwinding. Also, a reverse rotation stopper mechanism is incorporated in the tape core 104, though not illustrated. When carrying the tape cartridge 100, reverse rotation of the print tape 102 is prevented by this reverse rotation stopper mechanism. Meanwhile, when the tape cartridge 100 is loaded in the cartridge loading section 5 of the tape printing device 1, the reverse rotation stopper by the reverse rotation stopper mechanism is cancelled by the above positioning protrusion 41, thus enabling the print tape 102 to be fed.
On the right side of the proximal part in the cartridge case 130, a ribbon accommodation area 200 is formed next to the insertion opening 134. To the right in the ribbon accommodation area 200, a reel-off side bearing portion 202 which rotatably supports the ribbon roll 114 (reel-off core 112), and to the left, a take-up side bearing portion 204 which rotatably supports the take-up core 116, are formed integrally with the cartridge case 130. That is, the reel-off side bearing portion 202 and the take-up side bearing portion 204 are formed each in the upper case 152 and the lower case 150.
In cut-out parts of the reel-off side bearing portion 202 and the take-up side bearing portion 204 formed in the lower case 150, rotation stopper hooks 206 having their distal parts facing the reel-off side bearing portion 202 and the take-up side bearing portion 204 are integrally formed, respectively. Then, one rotation stopper hook 206 is engaged with the reel-off core 112 and the other rotation stopper hook 206 is engaged with the take-up core 116, each in a rotation stopping state.
In the ribbon accommodation area 200, near the reel-off side bearing portion 202, a first ribbon guide 210 which guides the reeled-off ink ribbon 110 to the platen roller 120 is provided upright integrally with the lower case 150. Also, on the outer circumferential side of the above opening circumferential wall portion 164, a plurality of second ribbon guides 212 which guides the circular movement of the ink ribbon 110 is integrally formed.
That is, inside the cartridge case 130, a ribbon feed path 214 is formed, starting at the ribbon roll 114 and reaching the take-up core 116 via the first ribbon guide 210, the platen roller 120 and the plurality of second ribbon guides 212. The ink ribbon 110 reeled off from the ribbon roll 114 is guided to the platen roller 120 via the first ribbon guide 210, is used for printing there, then further travels around the opening circumferential wall portion 164 (the plurality of second ribbon guides 212) from the platen roller 120, and is taken up on the take-up core 116.
In the ribbon feed path 214 around the opening circumferential wall portion 164, a plurality of rib-like regulating portions 168 is provided in order to regulate downward misalignment of the ink ribbon 110 (see
The ribbon roll 114 has the ink ribbon 110 and the reel-off core 112, and also has a ring-shaped leaf spring 220 which applies a braking load to the reel-off core 112 (see
The reel-off core 112 is cylindrically formed, and at its end on the side of the lower case 150, a plurality of cut-outs 222 is formed in the circumferential direction (see
Similarly, the take-up core 116 is cylindrically formed, and at its end on the side of the lower case 150, a plurality of cut-outs 224 is formed in the circumferential direction. Then, the above rotation stopper hooks 206 are engaged with and disengaged from the plurality of cut-outs 224. Also, a spline groove 226 is formed on the inner circumferential surface of the take-up core 116 and spline-engaged with the above take-up drive shaft 47. Thus, the rotational force of the take-up drive shaft 47 is transmitted to the take-up core 116, and the ink ribbon 110 is taken up.
On the left side of the proximal part in the cartridge case 130, a platen accommodation area 230 is formed next to the insertion opening 134. In the center of the platen accommodation area 230, a lower bearing portion 234 (see
Incidentally, this tape cartridge 100 is carried in the state where the reel-off end of the print tape 102 is slightly protruding outward from the tape outlet port 138 (see
The platen roller 120 has a cylindrical roller base 240 and a rubber roller 242 mounted on the outer circumferential surface of the roller base 240. The rubber roller 242 has a length corresponding to the print head 21 in the axial direction. The print head 21, having moved to the printing position, abuts against this rubber roller 242 with the print tape 102 and the ink ribbon 110 nipped between them. Also, a spline groove 244 is formed on the inner circumferential surface of the roller base 240 and spline-engaged with the above platen drive shaft 45. Thus, the rotational force of the platen drive shaft 45 is transmitted to the platen roller 120, and the print tape 102 (and the ink ribbon 110) is fed for printing.
By the way, in the tape cartridge 100 in this embodiment, a rotational force is inputted to the platen roller 120 from the platen drive shaft 45, and a rotational force is inputted to the take-up core 116 from the take-up drive shaft 47. Therefore, the rotational force acts on the cartridge case 130 as a moment of rotation via the friction at the bearing part of the platen roller 120, and the rotational force also acts on the cartridge case 130 as a moment of rotation via the friction at the bearing part of the take-up core 116. Since the two moments of rotation act in opposite directions to each other and a resultant force M of these has no vector components which cancel each other on an imaginary line L connecting the platen roller 120 and the take-up core 116, the resultant force acts to the maximum in a direction intersecting with the imaginary line L (see
[Structure Around Main Body-Side Abutting Portion First Embodiment]
Next, referring to
As shown in the enlarged views of
The main body-side abutting portion 65 is provided in a protruding (projecting) manner on the corner 270, where the right cover sidewall 284 and the front cover sidewall 286 intersect with each other (meet each other). Specifically, the main body-side abutting portion 65 is formed with a rectangular cross section and provided in a protruding manner at the apex part of the above corner 270. Also, the main body-side abutting portion 65 extends to reach the same height as the head cover 43 from the loading base 31. As described above, the head cover 43 and the loading base 31 are integrally formed (molded), and the main body-side abutting portion 65, too, is formed (molded) integrally with these.
Also, as shown in
As shown in the enlarged views of
The opening circumferential wall portion 164 has a rear opening inner wall 310 corresponding to the rear cover sidewall 280, and a left opening inner wall 312 corresponding to the left cover sidewall 282. Also, the opening circumferential wall portion 164 has a right opening inner wall 314 corresponding to the right cover sidewall 284, and a front opening inner wall 316 corresponding to the front cover sidewall 286. Then, the rear cover sidewall 280 and the rear opening inner wall 310 face each other with a space between them. Similarly, the left cover sidewall 282 and the left opening inner wall 312, the right cover sidewall 284 and the right opening inner wall 314, and the front cover sidewall 286 and the front opening inner wall 316 face each other with a space between them.
The cartridge-side abutting portion 166 is provided in a recessed manner in the corner 300, where the right opening inner wall 314 and the front opening inner wall 316 intersect with each other. In this case, the cartridge-side abutting portion 166 is formed with a rectangular cross section that is a complementary shape to the main body-side abutting portion 65 with a rectangular cross section. Also, corresponding to the main body-side abutting portion 65, the cartridge-side abutting portion 166 is formed continuously from the front side to the back side of the cartridge case 130. Then, the cartridge-side abutting portion 166 abuts against and is fitted with the main body-side abutting portion 65 in a direction intersecting with the imaginary line L connecting the platen roller 120 and the take-up core 116. Although these parts are not abutting against each other in the illustration, when a moment of rotation acts and the tape cartridge 100 moves by the amount of tolerance, these abutting portions abut against each other, thus regulating the movement of the tape cartridge 100.
The cartridge-side abutting portion 166 has two sidewall surfaces 320 parallel to each other, and these two sidewall surfaces 320 contact the lateral sides of the main body-side abutting portion 65. Thus, the cartridge-side abutting portion 166 (cartridge case 130) is positioned in the direction of the above imaginary line L (direction orthogonal to the protruding direction) by the main body-side abutting portion 65. Also, it is preferable that each of these two sidewall surfaces 320 has a tilted surface so as to widen out toward the side of the loading base 31. With this, the tilted surfaces function as a guide when loading the tape cartridge 100, and the cartridge case 130 can be accurately positioned in the direction of the imaginary line L.
In the first embodiment as described above, as the tape cartridge 100 is loaded in the cartridge loading section 5, the cartridge-side abutting portion 166 of the tape cartridge 100 is fitted with and abuts against the main body-side abutting portion 65 of the head cover 43. Since the cartridge-side abutting portion 166 exists on the imaginary line L connecting the platen roller 120 and the take-up core 116 (including its vicinity, as clear from
While the main body-side abutting portion 65 is formed to reach substantially the same height as the head cover 43 in the first embodiment, the main body-side abutting portion 65 may be formed to be shorter (lower). Similarly, the cartridge-side abutting portion 166 may be formed to be shorter. Also, as described above, as the tape cartridge 100, there are tape cartridges with a plurality of thicknesses corresponding to the plurality of widths of the print tape 102. In the case of a tape cartridge with a large thickness, the insertion opening 34 in which the print head 21 (head cover 43) is inserted need not necessarily be a through-hole and may be a pouch-like hole with a ceiling as long as it can accommodate print head 21. In such a case, the cartridge-side abutting portion 166 may be provided with a length within the range of the depth of the pouch of this pouch-like hole.
[Structure Around Main Body-Side Abutting Portion: Second Embodiment]
Next, referring to
As shown in
Meanwhile, the cartridge-side abutting portion 166, too, is provided in a recessed manner in the corner 300, where the right opening inner wall 314 and the front opening inner wall 316 intersect with each other, of the opening circumferential wall portion 164. Specifically, the cartridge-side abutting portion 166 has a first abutting recess 330 provided in a recessed manner in the right opening inner wall 314, corresponding to the above first abutting protrusion 65a. Also, the cartridge-side abutting portion 166 has a second abutting recess 332 provided in a recessed manner in the front opening inner wall 316, corresponding to the above second abutting protrusion 65b. In this case, too, the first abutting recess 330 is formed with a rectangular cross section that is a complementary shape to the first abutting protrusion 65a, and the second abutting recess 332 is formed with a rectangular cross section that is a complementary shape to the second abutting protrusion 65b.
Also, each of the first abutting recess 330 and the second abutting recess 332 is formed continuously from the front side to the back side of the cartridge case 130. Then, in this case, too, the first abutting recess 330 and the second abutting recess 332 have two sidewall surfaces 320 parallel to each other, and these two sidewall surfaces 320 contact the lateral sides of the first abutting protrusion 65a and the second abutting protrusion 65b corresponding thereto. Thus, the cartridge case 130 is positioned in the forward-rear and left-right directions.
In the second embodiment as described above, the tape cartridge 100 is loaded in the cartridge loading section 5. Then, the first abutting recess 330 and the second abutting recess 332 (cartridge-side abutting portion 166) of the tape cartridge 100 are respectively fitted with and abut against the first abutting protrusion 65a and the second abutting protrusion 65b (main body-side abutting portion 65) of the head cover 43. Therefore, even when the rotational forces (moments of rotation) of the platen drive shaft 45 and the take-up drive shaft 47 act on the tape cartridge 100, the tape cartridge 100 does not become misaligned.
[Structure Around Main Body-Side Abutting Portion: Third Embodiment]
Next, referring to
As shown in
As described above, a spacing is provided between the right cover sidewall 284 and the right opening inner wall 314, and a spacing is provided between the front cover sidewall 286 and the front opening inner wall 316 as well. Therefore, a spacing is formed between the corner 270 between these and the corner 300 between these.
The main body-side abutting portion 65 in this embodiment is provided in a protruding manner on the head cover 43, with a protruding dimension corresponding to the spacing between the corner 270 and the corner 300. Meanwhile, an inside corner part of the corner 300, where the right opening inner wall 314 and the front opening inner wall 316 intersect with each other, abuts against the main body-side abutting portion 65. That is, the cartridge-side abutting portion 166 in the third embodiment is formed by the inside corner part of the corner 300. In other words, the inside corner part of the corner 300 also serves as the cartridge-side abutting portion 166. In this case, the inside corner part of the corner 300 is arcuately formed due to the molding requirements, and the distal end of the main body-side abutting portion 65 corresponding to this is arcuately formed as well (in a complementary arcuate shape).
In the third embodiment as described above, as the tape cartridge 100 is loaded in the cartridge loading section 5, the corner 300 (cartridge-side abutting portion 166) of the tape cartridge 100 abuts against the main body-side abutting portion 65 of the head cover 43. Therefore, even when the rotational forces (moments of rotation) of the platen drive shaft 45 and the take-up drive shaft 47 act on the tape cartridge 100, the tape cartridge 100 does not become misaligned.
In each of the above embodiments, the main body-side abutting portion 65 is provided on or near the corner 270, and the cartridge-side abutting portion 166 is provided in or near the corner 300. However, these positions need not necessarily be employed and the advantageous effects of the invention can be achieved by situating the cartridge-side abutting portion 166 on the imaginary line L (including its vicinity) connecting the platen roller 120 and the take-up core 116 shown in
[Structure Around Main Body-Side Abutting Portion: Fourth Embodiment]
Next, referring to
As shown in the enlarged views of
The three guide protrusions 67 include a rear guide protrusion 400 provided in a protruding manner on the outer surface of the rear cover sidewall 280, a left guide protrusion 402 provided in a protruding manner on the outer surface of the left cover sidewall 282, and a right guide protrusions 404 provided in a protruding manner on the outer surface of the right cover sidewall 284. The rear guide protrusion 400 is arranged at a middle position in the direction of extension of the rear cover sidewall 280 and formed in a rectangular cross-sectional shape. The left guide protrusion 402 is arranged at a position close to the rear cover sidewall 280, on the left cover sidewall 282, and formed in a rectangular cross-sectional shape. Similarly, the right guide protrusion 404 is arranged at a position close to the rear cover sidewall 280, of the right cover sidewall 284, and formed in a rectangular cross-sectional shape.
Also, the rear guide protrusion 400, the left guide protrusion 402 and the right guide protrusion 404 are formed in such a way as to have substantially the same height from the loading base 31, and their height is designed to be lower than the above rib-like regulating portion 168 in the loaded tape cartridge 100. (see
As shown in the enlarged views of
The three guide recesses 169 have a rear guide recess 430 which is formed in the rear opening inner wall 310 and with which the rear guide protrusion 400 is fitted, a left guide recess 432 which is formed in the left opening inner wall 312 and with which the left guide protrusion 402 is fitted, and a right guide recess 434 which is formed in the right opening inner wall 314 and with which the right guide protrusion 404 is fitted. Then, the rear guide recess 430 is formed in a rectangular cross-sectional shape which is a complementary shape to the rear guide protrusion 400 with a rectangular cross section. Also, the left guide recess 432 is formed in a rectangular cross-sectional shape which is a complementary shape to the left guide protrusion 402. Similarly, the right guide recess 434 is formed in a rectangular cross-sectional shape which is a complementary shape to the right guide protrusion 404.
In this case, each of the rear guide recess 430, the left guide recess 432 and the right guide recess 434 has two recess sidewall surfaces 440 parallel to each other, and these two recess sidewall surfaces 440 contact the lateral sides of each guide protrusion 67. Thus, the rear guide recess 430 is positioned in the left-right direction (direction orthogonal to the protruding direction) by the rear guide protrusion 400. Similarly, the left guide recess 432 is positioned in the forward-rear direction (direction orthogonal to the protruding direction) by the left guide protrusion 402, and the right guide recess 434 is positioned in the forward-rear direction (direction orthogonal to the protruding direction) by the right guide protrusion 404.
Also, each of the rear guide recess 430, the left guide recess 432 and the right guide recess 434 has a recess bottom wall surface 442 including the upward slope surface in the loading direction (see
Meanwhile, the rear guide recess 430, the left guide recess 432 and the right guide recess 434 are formed to substantially the same height from the bottom wall portion 160, and their height is designed to be slightly lower than the above rib-like regulating portion 168 (see
Then, in practice, each of the rear guide recess 430, the left guide recess 432 and the right guide recess 434 is arranged in a corner part 450 where the opening circumferential wall portion 164 and the bottom wall portion 160 intersect with each other (see
Thus, as the tape cartridge 100 is loaded in the cartridge loading section 5, the three guide recesses 169 of the tape cartridge 100 are fitted with the three guide protrusions 67 of the head cover 43, respectively, and the tape cartridge 100 is positioned in the cartridge loading section 5. Therefore, even when the pressing force of the print head 21 or the rotational forces (moments of rotation) of the platen drive shaft 45 and the take-up drive shaft 47 act on the tape cartridge 100, the tape cartridge 100 does not become misaligned. Thus, the misalignment of the tape cartridge 100 can be restrained. Thus, a reduction in the print quality due to the misalignment of the tape cartridge 100 can be prevented.
Also, since the loading of the tape cartridge 100 is guided by the collaboration of the guide protrusions 67 and the guide recesses 169, the spacing between the head cover 43 and the insertion opening 134 can be minimized and the entry of dust or the like from this part can be effectively prevented.
[Structure Around Main Body-Side Abutting Portion: Fifth Embodiment]
Next, referring to
As shown in
The four guide protrusions 67 include two rear guide protrusions 400 provided in a protruding manner on the outer surface of the rear cover sidewall 280, a left guide protrusion 402 provided in a protruding manner on the outer surface of the left cover sidewall 282, and a right guide protrusion 404 provided in a protruding manner on the outer surface of the right cover sidewall 284. One rear guide protrusion 400 and the left guide protrusion 402 are arranged near the corner between the rear cover sidewall 280 and the left cover sidewall 282. The other rear guide protrusion 400 and the right guide protrusion 404 are arranged near the corner between the rear cover sidewall 280 and the right cover sidewall 284.
Corresponding to the four guide protrusions 67, the four guide recesses 169 include two rear guide recesses 430 which are formed in the rear opening inner wall 310 and with which the two rear guide protrusions 400 are fitted, a left guide recess 432 which is formed in the left opening inner wall 312 and with which the left guide protrusion 402 is fitted, and a right guide recess 434 which is formed in the right opening inner wall 314 and with which the right guide protrusion 404 is fitted.
In this way, in the one (left) corner of the two corners of the opening circumferential wall portion 164, the one rear guide recess 430 is fitted with the one rear guide protrusion 400, and the left guide recess 432 is fitted with the left guide protrusion 402. Also, in the other (right) corner, the other rear guide recess 430 is fitted with the other rear guide protrusion 400, and the right guide recess 434 is fitted with the right guide protrusion 404. Thus, the two corners of the opening circumferential wall portion 164 are respectively positioned in the forward-rear and left-right directions. That is, the tape cartridge 100 is positioned in the forward-rear and left-right directions at each of the two positions spaced apart from each other near the print head 21.
In the fifth embodiment as described above, too, as the tape cartridge 100 is loaded in the cartridge loading section 5, the four guide recesses 169 of the tape cartridge 100 are fitted respectively with the four guide protrusions 67 of the head cover 43, and the tape cartridge 100 is firmly positioned in the cartridge loading section 5. Therefore, even when an external force acts on the tape cartridge 100, its misalignment is prevented and a reduction in the print quality due to the misalignment of the tape cartridge 100 can be prevented.
In the fourth and fifth embodiments, the numbers of the guide protrusions 67 and the guide recesses 169 are arbitrary. Also, the lengths of the guide protrusions 67 and the guide recesses 169 are arbitrary. For example, apart or all of these may be guide protrusions 67 with a length that is the same as the height of the head cover 43, and guide recesses 169 with a length that is the same as the height of the opening circumferential wall portion 164.
Number | Date | Country | Kind |
---|---|---|---|
2014-060911 | Mar 2014 | JP | national |
2014-060913 | Mar 2014 | JP | national |
2014-157991 | Aug 2014 | JP | national |
2015-008460 | Jan 2015 | JP | national |
Filing Document | Filing Date | Country | Kind |
---|---|---|---|
PCT/JP2015/001549 | 3/19/2015 | WO | 00 |
Publishing Document | Publishing Date | Country | Kind |
---|---|---|---|
WO2015/146095 | 10/1/2015 | WO | A |
Number | Name | Date | Kind |
---|---|---|---|
5921688 | Furuya et al. | Jul 1999 | A |
20090080959 | Shiraiwa et al. | Mar 2009 | A1 |
Number | Date | Country |
---|---|---|
07-314868 | Dec 1995 | JP |
9-277679 | Oct 1997 | JP |
2011-206910 | Oct 2011 | JP |
2012-20543 | Feb 2012 | JP |
WO-2012-008126 | Jan 2012 | WO |
Entry |
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International Search Report, International Application No. PCT/JP2015/001549, Jun. 2, 2015. |
Number | Date | Country | |
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20160368275 A1 | Dec 2016 | US |