JP4595774B2 - Tape printer - Google Patents

Description

  The present invention relates to a tape printer, and more particularly, to a tape printer provided with a lever member for separating and contacting a platen roller and a print head in conjunction with an opening operation of a cover member.

  Various types of tape printers have been proposed that can print on a display tape, which is a long print medium, while displaying characters and the like created by inputting characters and the like from an input means such as a keyboard. Yes. In such a tape printer, the printing tape is generally supplied from a tape cassette in which a printing tape, an ink ribbon, or the like is wound around a spool and stored in a cassette having a predetermined shape.

  The tape cassette housing portion of the tape printer is provided with a print head for printing characters and the like on the print tape and a platen roller for feeding and driving the print tape. Characters and the like are printed while being pressed against the print head, and discharged as a printed tape. Here, when removing and replacing the tape cassette for replacement, it is necessary to release the press of the print tape by the print head and the platen roller and to retract the print head or the platen roller from the press position of the print tape. Don't be. For this reason, there has been provided a switching member that moves one of the platen roller and the print head and switches between a pressing position where both are in contact with each other and a retracted position where both are separated. Further, the tape printer is provided with a cover member for opening and closing a cassette housing portion for housing the tape cassette, and this is closed during printing to prevent entry of foreign matter from the outside.

  As the above-described switching member, Patent Document 1 discloses that the cover member is provided on the cover member, and when the cover member is opened, the holder member (platen roller) is opened when the cover member is opened. The elastic member which makes a roller) a retracted position is described. However, in the tape printer described in Patent Document 1, when the platen roller and the print head are kept in contact with each other for a long period of time, the print head and the platen roller stick to each other, and the elasticity of the elastic member There is a problem that force may not return to the retracted position. Further, if the tape cassette is mounted without knowing that the print head and the platen roller are adhered, there is a problem that the print tape and the ink ribbon are damaged. In order to solve this problem, if the elastic force of the elastic member is increased, the strength of the holder member or the like must be increased, leading to an increase in cost. In order to solve this problem, the present applicant, in Japanese Patent Application No. 2005-55352, when the cover member is closed using an operating member that is moved by a lever member that is pressed and rotated by the inner surface of the cover member. Proposed a tape printer that moves the holder member (platen roller) to the pressing position and forcibly moves the holder member (platen roller) to the retracted position when the cover member is opened.

Japanese Patent Laid-Open No. 10-1000049

  However, in the tape printer of the above application, since the lever member is rotated by being pressed by the inner surface of the cover member, it is necessary to increase the length of the lever member in order to increase the rotation angle. Moreover, although the pressing part is formed in the inner surface of the cover member which the upper end part of the said lever member contact | abuts, it was necessary to lengthen the length of the pressing part according to the length of the lever member. Therefore, there is a problem that the design of the tape printer is restricted by the length of the lever member and the length of the pressing portion formed on the inner surface of the cover member.

  The present invention has been made to solve the above-described problem, and even if the length of the lever member that drives the separation and contact between the platen roller and the thermal head is shortened, the rotation angle of the lever member is sufficiently large. An object of the present invention is to provide a tape printer that can be taken.

In order to achieve the above object, a tape printer according to claim 1 includes a cassette holding unit that detachably holds a tape cassette incorporating a printing tape, a printing head that prints on the printing tape, and the printing head. A platen roller disposed oppositely, a first position where either the platen roller or the print head is held and the platen roller and the print head contact each other; and the platen roller and the print head A tape printing apparatus comprising a holder member movable between a second position and a cover member capable of opening and closing the cassette holding portion, wherein the tape printing device rotates in conjunction with the opening and closing operation of the cover member The holder member is moved in conjunction with the rotation of the lever member, and the holder member is moved from the second position toward the first position when the cover member is closed. And a lever pressing portion for pressing the lever member in contact with the lever member is provided on the inner surface of the cover member. The lever member extends linearly and has one end thereof. And a shaft hole is formed on the end side opposite to the one end , and a support shaft provided in a frame inside the tape printer is inserted into the shaft hole. and rotatably supported by Relais bars base Te, when the cover member is moved from the open position to the closed position, the initially formed protrusions lever pressing part abuts the lever front end part, said lever The lever intermediate portion connects the base portion and the lever tip portion, and the lever intermediate portion rotates with respect to the lever base portion when the cover member moves from the open position to the closed position. In the direction to be moved The lever tip is bent at a predetermined angle and extended at a predetermined angle in the direction in which the lever member is rotated when the cover member moves from the open position to the closed position with respect to the lever intermediate part. It is bent and extended, and the protrusion is formed at the tip of the lever tip toward the lever pressing portion in a direction intersecting the extension direction of the lever tip, and the cover member is in the open position. When the cover member moves from the open position to the closed position with respect to a straight line that connects the support shaft and the inner surface of the cover member in the shortest distance, the lever base is on the side on which the lever member is rotated. located in the state inclined on the opposite side, when the cover member is moved from the open position to the closed position, is rotated the lever member is pushed by the lever depression portion, said actuating member is the holder The member is moved from the second position toward the first position.

  According to a second aspect of the present invention, in addition to the configuration of the first aspect of the tape printing device according to the first aspect, the connecting portion between the lever base portion and the lever tip portion is provided on the side facing the cover member. When a corner portion is formed and the cover member moves from the open position to the closed position, the lever pressing portion first presses the projection to rotate the lever member, and then the first The lever member is rotated by pressing the corner portion.

  According to a third aspect of the present invention, in addition to the configuration of the tape printer according to the first or second aspect, the actuating member includes the actuating member when the cover member is opened, and when the cover member is opened. A cam pressing member that presses a part of the holder member to move the holder member to the second position is provided.

2. The tape printer according to claim 1, wherein when the cover member is in the open position, the lever base is closed from the open position with respect to a straight line connecting the support shaft and the inner surface of the cover member in the shortest distance. position located in the state in which the lever member when moving is tilted to the side opposite to the side to be rotated, when the cover member is moved from the open position to the closed position, i.e., when the cover member is closed First, the tip of the lever member is pushed down by the lever pushing portion and the lever member is turned by the lever pushing portion, and the actuating member moves the holder member from the second position by the turning. Since it is moved toward the first position, the lever member can be made shorter than before and the rotation angle of the lever member can be increased. Accordingly, the peripheral portion of the lever member can be reduced in size, and the degree of freedom in designing the tape printer can be improved.

  Further, in the tape printer according to claim 2, in addition to the effect of the invention according to claim 1, a first corner is provided on a side of the connecting portion between the lever base portion and the lever tip portion facing the cover member. When the cover member moves from the open position to the closed position, the lever pressing portion first presses the projection and the lever member rotates, and then the first member is rotated. When the corner portion is pressed, the lever member can rotate. Therefore, a sufficient rotation angle can be ensured even with a short lever member.

  In the tape printer according to claim 3, in addition to the effect of the invention according to claim 1 or 2, the cam pressing member presses a part of the holder member by the opening operation of the cover member to hold the holder. Since the member can be moved to the second position, it can be forcibly separated even if the platen roller is stuck to the print head.

  Hereinafter, a tape printer according to the present invention will be described in detail with reference to the drawings based on an embodiment embodying the present invention. First, a schematic configuration of the tape printer according to the present embodiment will be described with reference to FIGS. FIG. 1 is a perspective view showing an external appearance of a tape printing apparatus according to an embodiment of the present invention, FIG. 2 is a perspective view in which a cover member of the tape printing apparatus is opened, and FIG. 3 is an enlarged perspective view showing a cover member and a printing mechanism. FIG. 4 is an explanatory view schematically showing the relationship between the tape cassette and the printing mechanism.

  In the tape printer 1 of the present embodiment, a keyboard 3 for inputting various characters and the like is provided on the upper surface of the main body 2 as shown in FIG. On the upper side of the keyboard 3, there are a power switch, a function key group 4 for performing various controls of the print key and the tape printer 1, and a liquid crystal display (hereinafter referred to as LCD) 5 for displaying inputted characters and symbols. Is provided. Further, an openable / closable cover member 15 is provided at the rear portion of the upper surface of the tape printer 1, and a printed tape 6a (see FIG. 4) printed on the printing tape 6 is cut at the upper left corner. A tape tray 7 is provided.

  Further, on the rear side of the main body 2, as shown in FIG. 2, there is a cassette holding portion 9 for mounting a tape cassette 8 (see FIG. 4) in which a printing tape 6 is stored in a cassette case having a predetermined shape behind the LCD 5. The cassette holding portion 9 is formed with a ribbon take-up cam 11 for taking up the used ink ribbon 10 in the tape cassette 8 and a tape feed roller cam 12 for feeding and driving the printed tape. Has been placed. In addition to this, a thermal head 13 that prints characters and the like on the printing tape 6 is attached to the cassette holding portion 9 on a subframe 30 that also serves as a heat sink so that the thermal head 13 is positioned at the opening 14 when the tape cassette 8 is mounted. Has been placed. Further, as shown in FIG. 3, a roller holder 19 holds the platen roller 18 and the pressing roller 23 so as to face the thermal head 13, and the holder shaft 24 is centered through a lever 16, a release rod 17 and the like which will be described later. Thus, it is arranged together with the lever 16 in a rotatable state.

  As shown in FIGS. 2 and 3, the cassette holding portion 9 is covered with a cover member 15 that can be opened and closed. Inside the cover member 15, there are a lever pressing portion 15a for pressing the lever 16 when the cover member 15 is closed, and a lower tongue piece 15b for lifting the lever 16 when the cover member 15 is opened. Are arranged at positions facing each other. The lever pressing portion 15a is formed in a flat surface, and the lower tongue piece 15b is erected from the side end portion of the lever pressing portion 15a so as to be parallel to the lever pressing portion 15a. It protrudes from the lower end of the.

  Engagement pieces 26 and 26 are provided at both end portions of the cover member 15. The engagement pieces 26 and 26 are engaged with engagement portions 27 and 27 provided on the main body 2 side of the tape printer 1 to hold the cover member 15 in a closed state. Further, a support projection 25 serving as a fulcrum for opening and closing when the cover member 15 is opened and closed is provided extending from the end of the cover member 15.

  Next, the internal structure of the tape cassette 8 is shown in FIG. 4 by taking a so-called laminate tape cassette as an example. FIG. 4 also shows a thermal head 13 and a roller holder 19 which are part of the printing mechanism of the tape printer 1 and are provided in the cassette holder 9 together with the internal structure of the tape cassette 8 for explanation.

  The tape cassette 8 includes a printing tape 6 having a predetermined width made of a transparent film, an ink ribbon 10 coated with ink transferred to the printing tape 6, and a back surface of the printed tape 6a on which printing has been performed. A tape 6 for printing and a double-sided tape 20 having the same width are wound around a supply spool that is rotatably installed and wound in a roll shape. Further, a used ribbon take-up spool 21 on which the used ink ribbon 10 is taken up is provided. Then, inside the tape cassette 8, the printed tape 6a that has been printed is discharged to the outside of the tape cassette 8, and a tape feed roller 22 for adhering the double-sided tape 20 to the back surface of the printed tape 6a that has been printed. Is built-in.

  When the tape cassette 8 is mounted on the cassette holder 9 of the tape printer 1, the ribbon take-up cam 11 of the cassette holder 9 is transferred to the used ribbon take-up spool 21 of the tape cassette 8 and the tape feed roller cam 12 of the cassette holder 9. Are respectively connected to the tape feed roller 22 of the tape cassette 8. During printing, the used ribbon take-up spool 21 and the tape feed roller 22 of the tape cassette 8 are driven to rotate. As a result, the printing tape 6 and the ink ribbon 10 are pulled out from the respective supply spools, overlapped, and sent to the thermal head 13 to perform predetermined printing. Then, the used ink ribbon 10 is separated from the printed tape 6a on which printing has been performed, and is wound on the used ribbon winding spool 21. On the other hand, the supplied double-sided tape 20 is attached to the printed tape 6a on which printing has been performed, and is discharged to the outside by the tape feed roller 22.

  Next, a mechanism for pressing the printing tape 6 against the thermal head 13 during printing will be described. As described above, the thermal head 13 disposed in the cassette holding unit 9 is positioned in the opening 14 when the tape cassette 8 is mounted. A platen roller 18 is disposed at a position facing the thermal head 13 with the printing tape 6 interposed therebetween. A pressing roller 23 is disposed at a position facing the tape feeding roller 22 of the tape cassette 8. The platen roller 18 and the pressing roller 23 are rotatably attached to a roller holder 19, and the roller holder 19 is rotatably attached to a holder shaft 24. The platen roller 18 and the pressure roller 23 are not pressed against the thermal head 13 and the tape feed roller 22 by the rotation of the roller holder 19 or the thermal head 13 and the tape feed roller 22 are not crimped. It is set at any position of the retreat position B (two-dot chain line). The pressing position A (solid line) shown in FIG. 4 corresponds to the “first position” of the present application, and the retracted position B (two-dot chain line) corresponds to the “second position” of the present application.

  Next, a mechanism for pressing and releasing the platen roller 18 and the thermal head 13 and the pressing roller 23 and the tape feeding roller 22 by opening and closing the cover member 15 will be described with reference to FIGS. To explain. 5 is a perspective view showing the printing mechanism, FIG. 6 is an exploded perspective view of the printing mechanism, FIG. 7 is a plan view of the printing mechanism, and FIG. 8 is a perspective view seen from the front side of the lever 16. 9 is a perspective view seen from the back side of the lever 16, FIG. 10 is a front view showing the relationship among the cover member 15, the lever 16, the release rod 17, and the roller holder 19 in the open state of the cover member, FIG. 12 is a front view showing the transition of the cover member 15 to the closed state, and FIG. 13 is a front view showing the relationship among the cover member 15, the lever 16, the release rod 17, and the roller holder 19 in the closed state of the cover member 15. FIG. 14 is a plan view in which the cover member 15 in a closed state of the cover member 15 is partially broken.

  The cover member 15 shown in FIGS. 2 and 3 is a lid that covers the cassette holding portion 9 so as to be openable and closable. The cover member 15 is attached to the main body 2 of the tape printer 1 by support protrusions 25 and 25, and the support protrusion 25 shown in FIG. , 25 to open and close the cassette holder 9. Engagement pieces 26 and 26 are provided at both end portions of the cover member 15. The engaging pieces 26 and 26 are latch members that engage with engaging portions 27 and 27 provided on the main body 2 side of the tape printer 1 to hold the cover member 15 in a closed state. Since the engaging portions 27 and 27 have elasticity, the engagement is released and the cover member 15 is opened when the operator performs a predetermined operation.

  The cassette holding unit 9 covered with the cover member 15 is provided with a printing mechanism 28 shown in FIGS. As shown in FIGS. 5 to 7, the printing mechanism 28 is screwed to the main frame 29 with a screw 31 by a sub-frame 30 that also serves as a heat radiating plate to which the thermal head 13 is attached. A roller holder 19 in which a platen roller 18 and a pressing roller 23 are mounted on a holder shaft 24 erected vertically from a main frame 29 is released into a fitting groove 32 described later provided on the back surface of the roller holder 19. The pressing portion 17 b provided at one end of the rod 17 is abutted and pivotally supported so as to be fixed by an E-shaped tome 35. The main frame bending portion 29a and the sub frame 30 are arranged in parallel to each other with an interval at which the roller holder 19 can rotate. The pressing portion 17b of the release rod 17 corresponds to the “actuating member” of the present invention.

  Next, the detailed structure of the lever 16 corresponding to the “lever member” of the present invention will be described with reference to FIGS. As shown in FIGS. 8 and 9, the lever 16 is a resin-made lever having a predetermined thickness and width that can be rotated by bending in a “U” shape when viewed from the front, and the lever base portion 16d. And a lever intermediate portion 16c and a lever tip portion 16a extending from the lever intermediate portion 16c. When the cover member 15 moves from the open position to the closed position, the lever intermediate part 16c is bent and extended from the lever base part 16d by a predetermined angle in the same direction as the lever 16 is rotated. When the cover member 15 moves from the open position to the closed position, the portion 16a is bent and extended by a predetermined angle from the lever intermediate portion 16c in the same direction as the lever 16 is rotated.

  Further, the lever base portion 16d is formed with an engagement hole 16f that engages with a shaft hole 16e as a shaft support portion and an engagement shaft 17a of the release rod 17. Further, a protrusion 16b is provided on the upper end of the tip of the lever tip 16a. As shown in FIG. 11, the protruding portion 16b is a portion that first contacts the lever pressing portion 15a when the cover member 15 is moved from the open position to the closed position. A first corner 16g is formed at the connecting portion between the lever tip 16a and the lever middle portion 16c, and a second corner 16h is formed at the connecting portion between the lever middle portion 16c and the lever base portion 16d. Yes. 10, when the cover member 15 is at the maximum open position, the angle formed by the axis H of the lever base portion 16d, the shaft hole 16e, and the straight line G connecting the inner surface of the cover member 15 is as short as possible. , About 40 degrees. The lever 16 having the above unique structure is shorter in length than the lever having the conventional structure, but the rotation angle can be increased.

  Next, details of the structure of the release rod 17 will be described with reference to FIGS. 3, 5, 6, 10, and 14. As shown in FIG. 6, the release rod 17 is formed in a flat plate shape extending in the horizontal direction, and an engagement shaft 17 a that engages with the engagement hole 16 f of the lever 16 is provided at one end thereof. At the other end, a pressing member 17b having a rectangular shape in plan view is formed. A cam pressing member 17c that engages with a cam receiving portion 45 (see FIG. 5) provided at the rear end portion of the roller holder 19 is formed on the engagement shaft 17 side of the intermediate portion of the release rod 17. Yes. The cam pressing member 17c has a trapezoidal shape in plan view, and a slope is formed on the engagement shaft 17 side.

  Next, the engagement relationship between the release rod 17 and the lever 16 will be described with reference to FIGS. 3, 5, 6, 7, and 10. As shown in FIGS. 5 and 6, the lever 16 is pivotally supported by fitting a shaft hole 16 e to a support shaft 29 b erected on the main frame bending portion 29 a so as to be rotatable. Here, the lever 16 is biased by the spring 43 in the counterclockwise direction in FIG. The engagement shaft 17 side of the release rod 17 is engaged with an engagement hole 16f formed in the lever base portion 16d of the lever 16. Accordingly, in FIG. 10, when the lever 16 rotates clockwise, the release rod 17 moves to the left (in the direction of arrow C in FIG. 10), and the pressing portion 17 b of the release rod 17 moves to the roller holder 19. By pressing the back surface, the roller holder 19 rotates about the holder shaft 24 in the clockwise direction in FIG. 7 so that the platen roller 18 contacts the thermal head 13.

  In FIG. 10, when the lever 16 rotates counterclockwise, the release rod 17 moves to the right (in the direction of arrow D in FIG. 10), and the roller holder 19 of the pressing portion 17 b of the release rod 17. 7 is released, and the cam pressing member 17c is engaged with the cam receiving portion 45 of the roller holder 19, so that the roller holder 19 is counterclockwise in FIG. It rotates around and comes in contact with the platen roller 18.

  Next, with respect to the rotation of the lever 16 and the rotation of the roller holder 19 due to the sliding of the release rod 17 in accordance with the opening / closing operation of the cover member 15 of the tape printing apparatus 1 having such a printing mechanism 28, FIGS. Reference is made to FIG. As shown in FIG. 10, when the cover member 15 is in the maximum open position, the lever 16 is maximized in the clockwise direction as shown in FIG. 10 by the biasing force of the spring 43 (see FIGS. 5 and 6). Held in a rotated position. In this state, the release rod 17 engaged with the engagement hole 16f of the lever 16 by the engagement shaft 17a is located at the rightmost position in FIG. Accordingly, the roller holder 19 is not pressed by the pressing portion 17b of the release rod 17, but is positioned at the retracted position B (second position of the present application) shown in FIG. At this time, the angle θ formed by the axis H in the extending direction of the lever base portion 16d of the lever 16 and the straight line G connecting the shaft hole 16e of the lever 16 and the inner surface of the cover member 15 is about 40 degrees. Yes. That is, the lever base portion 16d of the lever 16 is rotated when the cover member 15 moves from the open position to the closed position rather than the straight line G connecting the shaft hole 16e of the lever 16 and the inner surface of the cover member 15 in the shortest distance. It is inclined about 40 degrees in the direction opposite to the direction in which it is applied. At this time, the protrusion 16b of the lever tip 16a is located on the right side of the straight line G, that is, on the direction in which the lever member 16 is rotated when the cover member 15 moves from the open position to the closed position.

  Then, when the user attaches the tape cassette 8 to the cassette holding portion 9 and presses the cover member 15, as shown in FIG. 11, the protruding portion of the lever tip portion 16 a is closed as the cover member 15 is closed. 16b is pressed by the lever pressing portion 15a provided inside the cover member 15, and in FIG. 11, the lever 16 is rotated in the clockwise direction, and the release rod 17 moves to the left.

  Further, when the cover member 15 is closed, as shown in FIG. 12, the lever pressing portion 15a comes into contact with the first corner portion 16g of the lever 16 and presses the first corner portion 16g. Accordingly, in FIG. 12, the lever 16 is rotated in the clockwise direction, and the release rod 17 further moves in the left direction. Next, when the cover member 15 is completely closed, as shown in FIGS. 13 and 14, the lever pressing portion 15a comes into contact with the lever intermediate portion 16c of the lever 16, and the lever 16 rotates to the maximum in the clockwise direction. The release rod 17 is moved to the maximum leftward. The lever tip portion 16a is located in a space between the lever pressing portion 15a and the lower tongue piece 15b. At this time, since the roller holder 19 is pressed by the pressing portion 17b of the release rod 17, the roller holder 19 is positioned at the pressing position A (first position) shown in FIG.

  When the cover member 15 is changed from the closed state to the opened state, the lever tip 16a is lifted by the lower tongue piece 15b, and the lever 16 is rotated counterclockwise in FIGS. At this time, the release rod 17 is moved in the right direction in FIG. 10 to FIG. 13 (the direction of arrow D in FIG. 10). Then, when the cover member 15 is opened up to the maximum open position shown in FIG. 10, the roller holder 19 is not pressed against the pressing portion 17b of the release rod 17, and the retracted position B shown in FIG. Position). Note that the lever 16 is biased counterclockwise in FIG. 10 by the spring 43, and is thus maintained at the position shown in FIG.

  As described above in detail, in the tape printer 1 of the present embodiment, when the cover member 15 is at the maximum open position as shown in FIG. 10, the axis H of the lever base portion 16d, the shaft hole 16e, and the cover member 15 The angle formed by the straight line G connecting the inner surfaces at the shortest is approximately 40 degrees, and is inclined in the direction opposite to the rotation direction of the lever 16 when the cover member 15 is pressed. Furthermore, the shape of the lever 16 is not only formed to be bent in a “U” shape when viewed from the front, but also when the cover member 15 is moved from the open position to the closed position, it first contacts the lever pressing portion 15a. The protrusion 16b, which is a part, protrudes from the upper end of the tip of the lever tip 16a, and the lever intermediate portion 16c is a direction in which the lever 16 is rotated when the cover member 15 moves from the open position to the closed position. The lever distal end portion 16a extends in the same direction as the direction in which the lever 16 is rotated when the cover member 15 moves from the open position to the closed position. The lever intermediate portion 16c is bent and extended by a predetermined angle. Therefore, in the lever 16 having the above-described unique structure, when the cover member 15 is closed, the protrusion 16b of the lever tip 16a first contacts the lever pressing portion 15a, and then the first corner portion 16g is pressed down. Since it abuts on the portion 15a, the rotation angle can be increased even if the length is shortened as compared with the lever having the conventional structure. Further, the length of the lever pressing portion 15a may be short. Therefore, since the length of the lever 16 and the length of the lever pressing portion 15a can be shortened, the degree of freedom in designing the tape printer 1 can be increased.

  In addition, this invention is not limited to the said embodiment, Of course, various improvement and deformation | transformation are possible within the range which does not deviate from the summary of this invention.

  For example, in the above embodiment, the thermal head 13 is fixed and the roller holder 19 including the platen roller 18 is moved. However, the thermal head 13 may be moved.

1 is a perspective view illustrating an appearance of a tape printer according to an embodiment of the present invention. It is the perspective view which opened the cover member of the tape printer. It is a perspective view which expands and shows a cover member and a printing mechanism. It is a top view of the internal structure which shows typically the relationship between a tape cassette and a printing mechanism. It is a perspective view of a printing mechanism. It is a disassembled perspective view of a printing mechanism. It is a top view of a printing mechanism. FIG. 6 is a perspective view of the lever 16 as viewed from the front side. FIG. 6 is a perspective view of the lever 16 as viewed from the back side. It is a front view which shows the relationship between the cover member 15, the lever 16, the release rod 17, and the roller holder 19 in the open state of a cover member. It is a front view which shows the transition to the closed state of the cover member. It is a front view which shows the transition to the closed state of the cover member. 4 is a front view showing the relationship among the cover member 15, the lever 16, the release rod 17, and the roller holder 19 in a closed state of the cover member 15. FIG. FIG. 6 is a plan view in which the cover member 15 in a closed state of the cover member 15 is partially broken.

DESCRIPTION OF SYMBOLS 1 Tape printer 2 Main body 3 Keyboard 4 Function key group 6 Printing tape 6a Tape 7 Tape tray 8 Tape cassette 9 Cassette holding part 10 Ink ribbon 11 Ribbon take-up cam 12 Roller cam 13 Thermal head 14 Opening part 15 Cover member 15a Lever depression Part 15b Lower tongue piece 15c Holding member 16 Lever 16a Lever tip 16b Projection part 16c Lever middle part 16d Lever base part 16e Shaft hole 16f Engagement hole 16g First corner part 16h Second corner part 17 Release rod 17a Engagement shaft 17b Press Portion 17c Cam pressing member 18 Platen roller 19 Roller holder 20 Double-sided tape 21 Ribbon take-up spool 22 Roller 23 Pressing roller 24 Holder shaft 25 Support projection 26 Engagement piece 27 Engaging portion 28 Printing mechanism 29 Main frame 29a In frame bent portion 29b shaft 30 subframe 43 spring 45 cam receiving portion A pressing position B retracted position

Claims (3)

A cassette holding unit for detachably holding a tape cassette containing a printing tape; a print head for printing on the printing tape; a platen roller disposed opposite to the print head; the platen roller and the print head; A holder member movable between a first position where the platen roller and the print head abut each other, and a second position where the platen roller and the print head are separated from each other; A tape printer comprising a cover member capable of opening and closing the cassette holding portion,
A lever member that is rotated in conjunction with the opening and closing operation of the cover member;
An operation member that moves the holder member from the second position toward the first position during the closing operation of the cover member in conjunction with the rotation of the lever member;
The inner surface of the cover member is provided with a lever pressing portion that contacts the lever member and presses the lever member,
The lever member is
It extends linearly, and one end thereof engages with the operating member, and a shaft hole is formed on the end opposite to the one end , and the frame inside the tape printer is formed in the shaft hole. and Relais bar base support shaft is inserted is supported rotatably provided,
When the cover member moves from the open position to the closed position, a lever tip portion formed with a projection portion that first contacts the lever pressing portion; and
It is composed of a lever intermediate portion that connects the lever base portion and the lever tip portion,
The lever intermediate portion is bent and extended by a predetermined angle in the direction in which the lever member is rotated when the cover member moves from the open position to the closed position with respect to the lever base portion,
The lever tip portion is bent and extended by a predetermined angle in a direction in which the lever member is rotated when the cover member moves from the open position to the closed position with respect to the lever intermediate portion. The protrusion is formed at the tip of the lever tip part in a direction intersecting the extending direction of the lever tip part and toward the lever pressing part side,
When the cover member is in the open position, the lever base is configured so that the lever member moves when the cover member moves from the open position to the closed position with respect to a straight line connecting the support shaft and the inner surface of the cover member. Located in a state of being inclined to the opposite side to the rotated side ,
When the cover member moves from the open position to the closed position, the lever member is pressed and rotated by the lever pressing portion, and the operating member moves the holder member from the second position to the first position. A tape printer characterized by being moved toward the head. A first corner portion is formed on a side of the connecting portion between the lever base portion and the lever tip portion facing the cover member,
When the cover member moves from the open position to the closed position, the lever pressing portion first presses the protrusion and rotates the lever member, and then the first corner is pressed, The tape printer according to claim 1, wherein the lever member rotates.   The actuating member includes a cam pressing member that moves a holder member to the second position by pressing a part of the holder member during the opening operation of the cover member during the opening operation of the cover member. The tape printer according to claim 1 or 2.

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