JP7447616B2 - tape printing device - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Act September 23, 2019 https://labelworks. epson. com/press-release/

Application of Article 30, Paragraph 2 of the Patent Act September 23, 2019 https://labelworks. epson. com/epson-lw-z5000px/

The present invention relates to a tape printing device equipped with a thermal head.

BACKGROUND ART Conventionally, as disclosed in Patent Document 1, a printer is known that preheats a thermal head, that is, heats the thermal head before printing by applying electricity to the thermal head. By preheating the thermal head, the power consumption of the printer during printing is reduced.

JP2012-071531A

In conventional printers, preheating of the thermal head is performed by energizing the thermal head, so power is consumed for preheating the thermal head. Therefore, if the power consumption of the printer during printing and the power consumption of the printer during preheating are considered together, the power consumption of the printer will increase compared to the case where the thermal head is not preheated.

The tape printing apparatus of the present invention includes a thermal head that prints on a tape, a head support shaft that rotatably supports the thermal head, a base frame to which the head support shaft is attached, and a plurality of processors or power supply circuits. a first board on which a first heat generating part is mounted and connected to the base frame; in the first board, from a connection part between the base frame and the first board and a connection part among the plurality of first heat generating parts; The first distance between the first heat generating parts that are farthest apart from each other is shorter than the second distance between the two first heat generating parts having the largest mutual interval among the plurality of first heat generating parts.

The tape printing apparatus of the present invention includes a thermal head that prints on a tape, a head support shaft that rotatably supports the thermal head, a base frame to which the head support shaft is attached, and a plurality of processors or power supply circuits. a first substrate on which a first heat generating section is mounted and connected to a base frame; a through hole for screwing to the base frame is provided at a connection site between the base frame and the first substrate; When the length of the short side of one board is L, on the mounting surface of the first board, the plurality of first heat generating parts are arranged in a circle with a radius of L/2 centered on the through hole.

FIG. 3 is a diagram of the tape printing device viewed from the +Z direction with no ribbon cartridge installed. FIG. 3 is a diagram of the tape printing device viewed from the +Z direction with a ribbon cartridge attached. It is a perspective view of a ribbon cartridge. FIG. 2 is a schematic cross-sectional view of a tape printing device. FIG. 3 is an exploded perspective view of the base frame and the first substrate. FIG. 3 is a diagram of the first substrate viewed from the -Z direction. FIG. 3 is a diagram of the tape printing device viewed from the +Z direction with no ribbon cartridge installed. FIG. 7 is a diagram of a tape printing device according to a modified example viewed from the +Z direction with no ribbon cartridge installed.

Hereinafter, a tape printing apparatus 1, which is an embodiment of a tape printing apparatus, will be described with reference to the accompanying drawings. Note that although the following description will be made using directions based on the XYZ orthogonal coordinate system shown in each figure, these directions are only for convenience of explanation and do not limit the following embodiments in any way.

[Overview of tape printing device and ribbon cartridge]
As shown in FIGS. 1 and 2, the tape printing device 1 includes a device case 3 and a mounting section cover 5. The material of the device case 3 is not particularly limited, but may be made of resin, for example. The device case 3 is formed into a substantially rectangular parallelepiped shape. A cartridge mounting section 11 is provided on the +Z direction side of the device case 3. The cartridge mounting portion 11 is formed in a concave shape with an open side in the +Z direction, and the ribbon cartridge 101 is removably mounted therein.

A device-side tape inlet 7 is provided on the +X direction surface of the device case 3, and a device-side tape discharge port 9 is provided on the −X direction surface of the device case 3. Further, a tape introduction path 8 is provided between the device side tape introduction port 7 and the cartridge mounting section 11, and a tape ejection path 10 is provided between the cartridge mounting section 11 and the device side tape ejection port 9. It is being A tape 201 unwound from a tape roll (not shown) provided outside the tape printing apparatus 1 is introduced into the apparatus case 3 . That is, the tape 201 unwound from the tape roll is introduced into the cartridge mounting section 11 from the tape introduction port 7 on the device side through the tape introduction path 8, and further passes through the tape ejection path 10 and exits from the tape ejection port 9 on the device side. It is discharged to the outside of case 3.

The mounting section cover 5 is rotatably attached to the end of the device case 3 in the +Y direction, and opens and closes the cartridge mounting section 11. A head section 14 is provided on a mounting bottom surface 13 that is the bottom surface of the cartridge mounting section 11 . The head section 14 includes a thermal head 15, a head cover 16, and a head support shaft 18. The thermal head 15 includes a heating element 20 (see FIG. 5). The thermal head 15 is rotatably supported by a head support shaft 18 . The head support shaft 18 is cantilevered to a base frame 31 provided in the -Z direction of the cartridge mounting section 11 (see FIG. 4). That is, the head support shaft 18 protrudes from the base frame 31 in the +Z direction and passes through the head opening 23 provided in the mounting bottom surface 13. Note that the head support shaft 18 is made of metal.

Further, the mounting bottom surface 13 is provided with a platen shaft 17, a feeding shaft 19, and a winding shaft 21. The platen shaft 17, the payout shaft 19, and the take-up shaft 21 are all cantilevered to the base frame 31 (see FIG. 4). That is, the platen shaft 17 protrudes from the base frame 31 in the +Z direction and passes through the platen opening 25 provided in the mounting bottom surface 13. The feeding shaft 19 protrudes from the base frame 31 in the +Z direction and passes through a feeding opening 27 provided in the mounting bottom surface 13. The winding shaft 21 protrudes from the base frame 31 in the +Z direction and passes through a winding opening 29 provided in the mounting bottom surface 13. Note that the platen shaft 17, the feeding shaft 19, and the take-up shaft 21 are all made of metal.

As shown in FIGS. 2 and 3, the ribbon cartridge 101 includes a platen roller 103, a feeding core 105, a winding core 107, and a cartridge case 109 that accommodates these. An ink ribbon 111 is wound around the feeding core 105 . The ink ribbon 111 fed out from the feeding core 105 is wound up on the winding core 107. Note that the tape printing apparatus 1 can also rotate the feeding core 105 so that the ink ribbon 111 is rewound onto the feeding core 105. A head insertion hole 113 is provided in the cartridge case 109 so as to pass through the cartridge case 109 in the Z direction. When the ribbon cartridge 101 is installed in the cartridge mounting section 11, the head section 14, the platen shaft 17, the feeding shaft 19, and the winding shaft 21 are connected to the head insertion hole 113, the platen roller 103, the feeding core 105, and the winding core, respectively. 107. Thereby, the rotation of the feed motor (not shown) can be transmitted to the platen roller 103, the feeding core 105, and the winding core 107.

The cartridge case 109 is provided with a groove-shaped tape path 115 that is open in the +Z direction. The tape path 115 extends obliquely to the X direction. The end of the tape path 115 in the +X direction is called a cartridge-side tape inlet 123, and the end of the tape path 115 in the -X direction is called a cartridge-side tape outlet 125. The tape 201 introduced into the tape introduction path 8 from the device-side tape introduction port 7 is introduced into the tape path 115 from the cartridge-side tape introduction port 123 of the ribbon cartridge 101 mounted in the cartridge mounting section 11. The tape 201 introduced into the tape path 115 is discharged toward the tape discharge path 10 from the cartridge-side tape discharge port 125. The tape path 115 passes between the head insertion hole 113 and the platen roller 103.

The tape 201 is inserted into the tape path 115 from the edge of the tape 201 in the -Z direction in the -Z direction by the user before the ribbon cartridge 101 is installed in the cartridge mounting section 11. The ribbon cartridge 101 is mounted on the cartridge mounting section 11 with the tape 201 inserted into the tape path 115.

After the ribbon cartridge 101 is mounted on the cartridge mounting section 11 and the mounting section cover 5 is closed, the thermal head 15 is moved toward the platen shaft 17 by a head moving mechanism (not shown). As a result, the tape 201 and the ink ribbon 111 are sandwiched between the thermal head 15 and the platen roller 103. In this state, the tape printing device 1 performs printing based on print data generated by inputting characters, etc. to the tape printing device 1, or print data received by the tape printing device 1 from an external device such as a personal computer. Perform processing. That is, the tape printing apparatus 1 prints a print image based on print data on the tape 201 by causing the thermal head 15 to generate heat while feeding the tape 201 and the ink ribbon 111 using the platen roller 103.

[Base frame and first board]
As shown in FIG. 4, the tape printing apparatus 1 includes a base frame 31 and a first substrate 33. The base frame 31 and the first board 33 are built into the device case 3. The base frame 31 is provided in the −Z direction with respect to the mounting bottom surface 13 of the cartridge mounting portion 11 in a posture substantially parallel to the mounting bottom surface 13. The first substrate 33 is provided in the −Z direction with respect to the base frame 31 in a posture substantially parallel to the base frame 31. That is, the base frame 31 is provided between the mounting bottom surface 13 and the first substrate 33. The first board 33 is provided so that the A side 69 (see FIG. 6) on which a plurality of electronic components are mounted faces the -Z direction, and the B side 77 opposite to the A side 69 faces the +Z direction. .

As shown in FIG. 5, the base frame 31 and the first substrate 33 are screwed together using a second fixing screw 51 and a third fixing screw 63.

The base frame 31 includes a first frame 35, a second frame 37, and a third frame 39. The first frame 35, the second frame 37, and the third frame 39 are all made of metal, and more specifically, they are sheet metals that have been subjected to processing such as bending and drilling. The second frame 37 is provided in the −Y direction with respect to the first frame 35, and the third frame 39 is provided in the +Y direction with respect to the first frame 35.

The first frame 35 is formed into a plate shape and is provided substantially parallel to the mounting bottom surface 13. A head support shaft 18 and a platen shaft 17 are attached to the first frame 35 . Although not shown in FIG. 5, the feeding shaft 19 and the winding shaft 21 are also attached to the first frame 35. Note that the first frame 35 has four second screw holes (not shown) for screwing the second frame 37 and the first frame 35, corresponding to the four second fixing holes 47 described later. is provided. The first frame 35 also has two third screw holes (not shown) for screwing the third frame 39 and the first frame 35 together, corresponding to two third fixing holes 59 to be described later. is provided.

The second frame 37 includes a second frame main body 41 , a second bent portion 43 , and a second extended portion 45 . The second frame main body 41 is formed into a substantially rectangular plate shape, and is in contact with the surface of the first frame 35 in the -Z direction, with a part protruding from the first frame 35 in the -Y direction. There is. The second frame main body 41 is provided with four second fixing holes 47 for screwing the second frame 37 and the first frame 35 together. The second bent portion 43 is formed by bending a portion of the second frame main body 41 near the corner in the +X direction and the +Y direction so as to be cut and raised into a substantially “L” shape. A second frame through hole 49 is provided approximately at the center of the second bent portion 43 . A second fixing screw 51 passes through the second frame through hole 49 from the −Z direction. The second extending portion 45 extends from the end of the second frame main body 41 in the −Y direction in the +Z direction.

The third frame 39 includes a third frame main body 53, a third bent portion 55, and a third extending portion 57. The third frame main body 53 is formed into a substantially rectangular plate shape, and is in contact with the surface of the first frame 35 in the −Z direction. The third frame main body 53 is provided with two third fixing holes 59 for screwing the third frame 39 and the first frame 35 together. The third bent portion 55 is a portion of the third frame main body 53 that protrudes in the +X direction from the edge in the +X direction and is bent into a substantially “L” shape. A third frame through hole 61 is provided approximately at the center of the third bent portion 55 . A third fixing screw 63 passes through the third frame through hole 61 from the −Z direction. The third extending portion 57 extends from the end of the third frame main body 53 in the +Y direction in the +Z direction.

The first substrate 33 is formed into a substantially rectangular plate shape. Note that as the first substrate 33, for example, a multilayer substrate having four layers, six layers, etc. can be used. The first substrate 33 is provided with a second substrate through hole 65 and a third substrate through hole 67. The second fixing screw 51 passes through the second board through hole 65 from the -Z direction, and the third fixing screw 63 passes through the third board through hole 67 from the -Z direction. That is, the first board 33 is screwed at the second bent part 43 of the second frame 37 by the second fixing screw 51 that passes through the second board through hole 65, and the second fixing screw 51 that passes through the third board through hole 67. The third bent portion 55 of the third frame 39 is screwed by three fixing screws 63 . Therefore, the first substrate 33 and the base frame 31 are connected at the second bent portion 43 and the third bent portion 55.

As shown in FIG. 6, a first processor 71, a first power supply circuit 73, and a second power supply circuit 75 are provided on the A side 69 of the first substrate 33. That is, the A side 69 is a mounting surface on which the first processor 71 and electronic components forming the first power supply circuit 73 and the second power supply circuit 75 are mounted.

The first processor 71 controls the thermal head 15, the feed motor, etc. by executing a program stored in a memory (not shown). Note that the first processor 71 includes, for example, one or more CPUs (Central Processing Units). The first processor 71 may be configured by a hardware circuit such as an ASIC (Application Specific Integrated Circuit), or may be configured by one or more CPUs and a hardware circuit such as an ASIC.

The first power supply circuit 73 supplies power to each part of the tape printing apparatus 1 . The first power supply circuit 73 is composed of electronic components such as a capacitor, a diode, a resistor, and a switching element. The same applies to the second power supply circuit 75.

When the tape printing apparatus 1 is powered on, the first processor 71, the first power supply circuit 73, and the second power supply circuit 75 generate heat by being energized. That is, when the tape printing device 1 is powered on, the first processor 71, the first power supply circuit 73, and the second power supply circuit 75 generate heat even when the tape printing device 1 is not performing a printing operation. .

Further, a GND pattern 79 is provided on the B side 77 of the first substrate 33. A second substrate through hole 65 is provided in a region of the first substrate 33 where the GND pattern 79 is provided. That is, the first substrate 33 is connected to the second bent portion 43 of the second frame 37 at the GND pattern 79.

Assuming that the length of the first board 33 in the Y direction is L, the first processor 71, the first power supply circuit 73, and the second power supply circuit 75 are arranged in a circle with a radius L/2 centered on the second board through-hole 65. located within. The heat generated in the first processor 71, the first power supply circuit 73, and the second power supply circuit 75 is transferred through the connection portion 81 between the first substrate 33 and the base frame 31, that is, the GND pattern 79 and the second bent portion 43. , the head support shaft 18, the platen shaft 17, and the feeding shaft 19. That is, heat generated in the first processor 71, the first power supply circuit 73, and the second power supply circuit 75 is conducted from the second bent portion 43 connected to the GND pattern 79 to the second frame 37. The heat conducted to the second frame 37 is conducted to the first frame 35 in contact with the second frame 37. The heat conducted to the first frame 35 is conducted to the head support shaft 18, the platen shaft 17, and the feeding shaft 19 attached to the first frame 35. Note that the heat generated in the first processor 71, the first power supply circuit 73, and the second power supply circuit 75 is also conducted to the winding shaft 21. The conduction to the head support shaft 18, platen shaft 17, and feeding shaft 19, which mainly contribute to this, will be described.

As described above, in the first board 33, the first processor 71, the first power supply circuit 73, and the second power supply circuit 75 are connected to the second board through the second board provided at the connection part 81 between the first board 33 and the base frame 31 They are arranged in a circle having a radius of L/2 and having the hole 65 as the center. In other words, as shown in FIG. 6, the first distance D1 is shorter than the second distance D2. The first distance D1 is the distance between the connection part 81 and the one of the first processor 71, the first power supply circuit 73, and the second power supply circuit 75 that is farthest from the connection part 81, that is, the distance between the connection part 81 and the first power supply circuit 75. 1 processor 71. More specifically, the first distance D1 means the distance between the center of the connection portion 81, that is, the center of the second substrate through hole 65, and the point in the first processor 71 that becomes the highest temperature when generating heat. The second distance D2 is the distance between two of the first processor 71, the first power supply circuit 73, and the second power supply circuit 75 having the largest mutual distance, that is, the first power supply circuit 73 and the second power supply circuit 75. means the distance between. More specifically, the second distance D2 means the distance between the point in the first power supply circuit 73 that becomes the highest temperature during heat generation and the point in the second power supply circuit 75 that becomes the highest temperature during heat generation. In this way, since the first processor 71, the first power supply circuit 73, and the second power supply circuit 75 are provided near the connection part 81, the first processor 71, the first power supply circuit 73, and the second power supply circuit 75 The heat generated is efficiently conducted to the head support shaft 18, the platen shaft 17, and the feeding shaft 19 via the connection portion 81.

Further, in the base frame 31, the head support shaft 18, the platen shaft 17, and the feeding shaft 19 are provided near the connection portion 81. In other words, as shown in FIG. 7, the third distance D3 is shorter than the fourth distance D4. The third distance D3 is the distance between the connection part 81 and the axis furthest from the connection part 81 among the head support shaft 18, the platen shaft 17, and the delivery shaft 19, that is, the distance between the connection part 81 and the delivery shaft 19. means the distance between. More specifically, it means the distance between the center of the connection portion 81, that is, the center of the second frame through hole 49, and the center of the feeding shaft 19. The fourth distance D4 is the distance between the two axes with the largest mutual spacing among the three axes of the head support shaft 18, the platen shaft 17, and the feeding shaft 19, that is, the distance between the platen shaft 17 and the feeding shaft 19. means the distance. More specifically, it means the distance between the center of the platen shaft 17 and the center of the payout shaft 19. In this way, since the head support shaft 18, the platen shaft 17, and the payout shaft 19 are provided near the connection part 81, the heat generated from the first processor 71, the first power circuit 73, and the second power circuit 75 is removed. is efficiently transmitted to the head support shaft 18, platen shaft 17, and feeding shaft 19 via the connection portion 81.

Before printing, heat is conducted to the head support shaft 18, platen shaft 17, and feeding shaft 19, thereby preheating the thermal head 15, tape 201, and ink ribbon 111, that is, preheating the thermal head 15, tape 201, and ink ribbon 111. Heating is performed before printing. As the heat is conducted to the head support shaft 18, the thermal head 15 supported by the head support shaft 18 is mainly preheated. Further, by conducting heat to the platen shaft 17, the tape 201 and the ink ribbon 111, which are held between the thermal head 15 and the platen roller 103 into which the platen shaft 17 is inserted, are mainly preheated. In addition, as the heat is conducted to the feeding shaft 19, the ink ribbon 111 wound around the feeding core 105 into which the feeding shaft 19 is inserted is mainly preheated.

Further, the air heated by the heat generated from the first processor 71, the first power supply circuit 73, and the second power supply circuit 75 is transferred to the cartridge through the head opening 23, the platen opening 25, the feeding opening 27, and the winding opening 29. It is sent to the mounting section 11. Therefore, the thermal head 15, Tape 201 and ink ribbon 111 can be preheated. Note that the base frame 31 and the first substrate 33 are preferably provided vertically below the cartridge mounting portion 11 in order to improve the heat transfer coefficient due to convection.

As described above, in the tape printing apparatus 1 of this embodiment, the thermal head 15, the tape 201, and the ink ribbon 111 are printed using the heat generated from the first processor 71, the first power circuit 73, and the second power circuit 75. A preheat will be held. Therefore, in addition to power consumption due to heat generated by the first processor 71, first power supply circuit 73, and second power supply circuit 75, power is not consumed for preheating the thermal head 15, tape 201, and ink ribbon 111. , the power consumption of the tape printing device 1 can be reduced. In addition, before printing, the temperatures of the thermal head 15, tape 201, and ink ribbon 111 are higher than the environmental temperature, so even when the environmental temperature is low, printing defects such as blurring on the printed image can be avoided without reducing the printing speed. can be suppressed from occurring.

[Other variations]
It goes without saying that the present invention is not limited to the embodiments described above, and that various configurations can be adopted without departing from the spirit thereof. For example, the above embodiment can be modified into the following forms in addition to those described above. Alternatively, a configuration may be used in which the embodiments and modifications are combined.

As shown in FIG. 8, the tape printing device 1 may include a second substrate 83 provided on the side of the tape introducing path 8, that is, in the +Y direction. The second substrate 83 is provided substantially perpendicular to the XY plane. The second board 83 includes a second processor 85 and a third power supply circuit 87. According to this configuration, the tape 201 introduced into the tape introduction path 8 can be preheated using the heat generated from the second processor 85 and the third power supply circuit 87 before printing.

The base frame 31 and the first substrate 33 are not limited to a directly connected configuration, but may be connected via a connecting member. The connecting member is preferably made of a material with high thermal conductivity, such as metal.

In place of or in addition to the head opening 23, platen opening 25, feeding opening 27, and winding opening 29, a first processor 71, a first power supply circuit 73, and a second A configuration may also be adopted in which a vent hole is provided for sending air warmed by heat generated from the power supply circuit 75 to the cartridge mounting section 11.

Although the tape printing apparatus 1 can be equipped with a ribbon cartridge 101, instead of the ribbon cartridge 101, a tape roll wound with a tape similar to the tape 201 and an ink ribbon similar to the ink ribbon 111 are wound. It may also be configured to mount a tape cartridge that accommodates a feeding core.

[Additional notes]
Below, additional notes will be made regarding the tape printing device.
A tape printing device includes a thermal head that prints on a tape, a head support shaft that rotatably supports the thermal head, a base frame to which the head support shaft is attached, and a plurality of first heat generating units that are processors or power supply circuits. a first board on which the parts are mounted and connected to the base frame; in the first board, a connection part between the base frame and the first board and a part farthest from the connection part among the plurality of first heat generating parts; The first distance between the first heat generating parts is shorter than the second distance between the two first heat generating parts having the largest mutual interval among the plurality of first heat generating parts.

A tape printing device includes a thermal head that prints on a tape, a head support shaft that rotatably supports the thermal head, a base frame to which the head support shaft is attached, and a plurality of first heat generating units that are processors or power supply circuits. a first board on which the part is mounted and connected to the base frame, and a through hole for screwing to the base frame is provided at a connection part between the base frame and the first board, and a through hole is provided for screwing to the base frame, , where the length of the short side is L, on the mounting surface of the first substrate, the plurality of first heat generating parts are arranged in a circle with a radius L/2 centered on the through hole.

According to this configuration, since the plurality of first heat generating parts are provided near the connection site, the heat generated from the first heat generation parts is efficiently conducted to the head support shaft via the connection site. Thereby, the thermal head can be preheated using the heat generated from the first heat generating section. Therefore, it is possible to avoid power consumption due to preheating of the thermal head in addition to power consumption due to heat generated by the first heat generating section, and it is possible to reduce power consumption of the tape printing apparatus.
Note that the first processor 71 is an example of a "first heat generating section." The first power supply circuit 73 is an example of a "first heat generating section." The second power supply circuit 75 is an example of a "first heat generating section." The second substrate through hole 65 is an example of a "through hole."

In this case, a cartridge mounting section in which a ribbon cartridge is mounted includes a feeding core around which an ink ribbon is wound, and a platen roller that clamps the ink ribbon fed out from the tape and feeding core between the tape and the thermal head. , a feeding shaft that is attached to the base frame and inserted into the feeding core when the ribbon cartridge is attached to the cartridge attachment section, and a platen that is attached to the base frame and inserted into the feeding core when the ribbon cartridge is attached to the cartridge attachment section. A platen shaft inserted into the roller is preferably provided.

According to this configuration, the heat generated from the first heat generating portion is conducted to the feeding shaft and the platen shaft via the connection portion. Thereby, before printing, the thermal head, tape, and ink ribbon can be preheated using the heat generated from the first heat generating section.

In this case, in the base frame, the third distance between the connection part and the axis furthest from the connection part among the three axes of the head support shaft, payout shaft, and platen shaft is the third distance between the three axes. Preferably, the spacing is shorter than the fourth distance between the two largest axes.

According to this configuration, since the head support shaft, the payout shaft, and the platen shaft are provided near the connection part, the heat generated from the first heat generating part is transmitted to the head support shaft, the payout shaft, and the platen shaft through the connection part. It is efficiently conducted to the platen shaft.

In this case, the tape is provided with a tape introduction path through which the tape is sent toward the cartridge mounting section, and a second board on which a second heat generating part, which is a processor or a power supply circuit, is mounted, and the second board is on the side of the tape introduction path. It is preferable that it be provided on the side.

According to this configuration, before printing, the tape can be preheated in the tape introduction path using the heat generated from the second heat generating section.
Note that the second processor 85 is an example of a "second heat generating section." The third power supply circuit 87 is an example of a "second heat generating section".

In this case, the base frame is preferably provided between the mounting bottom surface of the cartridge mounting section and the first substrate, and the mounting bottom surface is preferably provided with a vent hole.

According to this configuration, air warmed by heat generated from the first heat generating section is sent to the cartridge mounting section through the vent, thereby making it possible to preheat the thermal head, tape, and ink ribbon.
Note that the head opening 23 is an example of a "ventilation port". The platen opening 25 is an example of a "vent". The feeding opening 27 is an example of a "ventilation port." The winding opening 29 is an example of a "vent".

In this case, the mounting bottom surface of the cartridge mounting section is provided with a head opening through which the head support shaft passes, a feeding opening through which the feeding shaft passes, and a platen opening through which the platen shaft passes. Preferably, the platen openings function as vents.

According to this configuration, air warmed by heat generated from the first heat generating section is sent to the cartridge mounting section through the head opening, the feeding opening, and the platen opening, thereby preheating the thermal head, tape, and ink ribbon. It can be performed.

In this case, the base frame has a frame body and a bent part bent from the frame body, the base frame is screwed to the first board at the bent part, and the base frame and the first board are screwed together. are preferably connected at the bent portion.
Note that the second frame body 41 is an example of a "frame body." The second bending part 43 is an example of a "bending part".

According to this configuration, heat generated from the first heat generating portion is conducted to the head support shaft via the bent portion screwed to the first substrate. Therefore, there is no need to provide a portion on the base frame for connecting the base frame and the first substrate apart from the bending portion.

DESCRIPTION OF SYMBOLS 1... Tape printing device, 8... Tape introduction path, 11... Cartridge mounting part, 13... Mounting bottom surface, 15... Thermal head, 17... Platen shaft, 18... Head support shaft, 19... Feeding shaft, 23... Head opening, 25 ...Platen opening, 27... Feeding opening, 31... Base frame, 33... First board, 41... Second frame main body, 43... Second bent part, 65... Second board through hole, 71... First processor, 73 ...First power supply circuit, 75...Second power supply circuit, 81...Connection site, 83...Second board, 85...Second processor, 87...Third power supply circuit, 101...Ribbon cartridge, 103...Platen roller, 105...Feeding out Core, 111... Ink ribbon, 201... Tape, D1... First distance, D2... Second distance, D3... Third distance, D4... Fourth distance.

Claims (9)

A thermal head that prints on the tape,
a head support shaft that rotatably supports the thermal head;
a base frame to which the head support shaft is attached;
A tape printing device comprising: a first substrate, on which a processor, a first power supply circuit, and a second power supply circuit, which are a first heat generating section, are mounted and connected to the base frame;
A through hole for screwing to the base frame is provided at a connection portion of the first board to the base frame,
The processor is composed of one or more CPUs,
The first power supply circuit and the second power supply circuit that supply power to each part of the tape printing device are configured by a plurality of electronic components,
In the first board, a first distance between a part of the processor that reaches the highest temperature when it generates heat and the center of the through hole is a distance between a part of the first power supply circuit that reaches the highest temperature when it generates heat and the second distance. A tape printing device characterized in that the distance is shorter than the second distance between the power supply circuit and a point that reaches the highest temperature during heat generation. A thermal head that prints on the tape,
a head support shaft that rotatably supports the thermal head;
a base frame to which the head support shaft is attached;
A tape printing device comprising: a first substrate, on which a processor, a first power supply circuit, and a second power supply circuit, which are a first heat generating section, are mounted and connected to the base frame;
The processor is composed of one or more CPUs,
The first power supply circuit and the second power supply circuit that supply power to each part of the tape printing device are configured by a plurality of electronic components,
A through hole for screwing to the base frame is provided at a connection portion of the first board to the base frame,
When the length of the short side of the first board is L, on the mounting surface of the first board, the first heat generating part is arranged within a circle with a radius of L/2 centered on the through hole. A tape printing device characterized by: A cartridge mounting section in which a ribbon cartridge is mounted, which includes a feeding core around which an ink ribbon is wound, and a platen roller that clamps the ink ribbon fed out from the tape and the feeding core between the tape and the thermal head. and,
a feeding shaft attached to the base frame and inserted into the feeding core when the ribbon cartridge is installed in the cartridge mounting part;
a platen shaft attached to the base frame and inserted into the platen roller when the ribbon cartridge is installed in the cartridge mounting section;
The tape printing apparatus according to claim 1 or 2, further comprising: In the base frame, a third distance between the connection part and the axis furthest from the connection part among the three axes of the head support shaft, the payout shaft, and the platen shaft is equal to 4. The tape printing apparatus according to claim 3, wherein the distance between the two axes is shorter than the fourth distance between the two axes having the largest mutual distance. a tape introducing path through which the tape unwound from a tape roll provided outside the tape printing device is sent toward the cartridge mounting section;
a second board on which a second heat generating part, which is a processor or a power supply circuit, is mounted;
5. The tape printing apparatus according to claim 3, wherein the second substrate is provided on a side of the tape introducing path. The base frame is provided between the mounting bottom surface of the cartridge mounting section and the first board,
The tape printing apparatus according to any one of claims 3 to 5, wherein the mounting bottom surface is provided with a ventilation hole. A mounting bottom surface of the cartridge mounting portion is provided with a head opening through which the head support shaft passes, a feeding opening through which the feeding shaft passes, and a platen opening through which the platen shaft passes,
The tape printing apparatus according to claim 6, wherein the head opening, the feeding opening, and the platen opening function as the ventilation hole. The base frame has a frame main body and a bent part bent from the frame main body,
The base frame is screwed to the first substrate at the bent portion,
The tape printing apparatus according to any one of claims 1 to 7, wherein the base frame and the first substrate are connected at the bent portion. A GND pattern is provided at the connection portion of the first substrate,
9. The tape printing apparatus according to claim 8, wherein the first substrate is connected to the bent portion via the GND pattern.

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