JP6005585B2 - Printer - Google Patents

Description

  The present invention relates to a printer that stores continuous paper and includes a cutting unit that cuts printed continuous paper.

  Portable printers that incorporate continuous paper such as roll paper and can easily obtain or distribute printed data outdoors have become widespread. In such a printer, a lid is provided on the main body, and the paper is exchanged by opening and closing the lid.

  FIG. 18 is a diagram showing the appearance of such a portable printer. FIG. 18 shows a state in which the lid 130 is closed with respect to the main body 120 of the printer 100. The lid 130 is provided so as to be rotatable in the q direction with respect to the main body 120. The paper 200 printed inside is discharged outside through a slit 122 formed in the horizontal direction between the main body 120 and the lid 130. The printed paper 200 indicated by the broken line is discharged in the p direction.

  In addition, the cover unit 130 may be provided with a sheet sensor for detecting the presence or absence of a sheet and the conveyance amount of the sheet, and it is necessary to transmit a signal from the sheet sensor between the main body unit 120 and the cover unit 130. A contact system is generally used for signal transmission. In the contact method, a pair of contact portions are provided on the main body 120 and the lid portion 130, and are in non-contact when the lid portion 130 is opened and in contact with the lid portion 130 when in use.

  19 and 20 are diagrams for explaining a general structure of the contact portion. FIG. 19 is a diagram illustrating a state where the lid 130 is removed from the main body 120 and the appearance of the sheet 200 alone. A sheet 200 is stored inside the main body 120. A paper sensor (not shown) is attached to the inside of the lid 130. A near end mark 202 is printed on the back side of the printing surface of the paper 200, and the paper sensor detects the near end mark 202. The near end mark 202 is a portion printed in black. Based on the detection of the near end mark 202, cueing and conveyance of the paper 200 are controlled.

  A main body contact portion 124 and a lid contact portion 134 are provided as a pair of contact portions for signal transmission of the paper sensor. The main body contact portion 124 is provided at an upper portion of the center position of the right side surface of the main body portion 120. The lid contact portion 134 is provided downward on the front side of the right side surface of the lid portion 130 and is hidden in FIG. The main body contact portion 124 is a metal pin urged by an internal spring such as a so-called probe pin. The lid contact part 134 is, for example, a printed circuit board having a predetermined number of contact patterns formed on the surface.

  FIG. 20 is a schematic diagram for explaining a state of contact between the main body contact portion 124 and the lid contact portion 134. FIG. 20 is a side view of the printer 100 shown in FIG. 19 viewed from the right direction. FIG. 20A shows a state where the lid 130 is opened from the main body 120. In the state shown in FIG. 19, the lid 130 is operated in the −q direction (clockwise), and the lid 130 is rotated about the rotation shaft 136.

  The lid portion 130 is provided with a reflective sensor 132 that detects the near-end mark 202 of the paper 200, and the sensor 132 and the lid contact portion 134 are connected by a cable or the like. A main body contact portion 124 provided in the main body portion 120 is connected to a control portion 128 that controls the conveyance of the paper 200 by a cable or the like.

  FIG. 20B shows a state where the lid 130 is closed. In this state, the lid 130 is rotated by a predetermined angle in the + q direction (counterclockwise) from the state of FIG. The sensor 132 moves to a position for detecting the near end mark 202 of the paper 200. At the same time, the lid contact portion 134 moves to a predetermined position, and the main body contact portion (pin) 124 is pressed against and contacts the lid contact portion 134 by an internal spring.

  When a print instruction is given in this state, the paper 200 is cued based on the detection of the near end mark 202 by the sensor 132, and printing of information on the paper 200 is started. After printing is completed, the sheet 200 is discharged from the slit 122 of the printer 100 for a predetermined length based on the near end mark 202.

  The discharged paper 200 is used after being cut by a cutter unit 138 provided in the slit 122, and paper dust generated at this time adheres to the main body contact unit 124 and the lid contact unit 134. Since cutting of the paper is frequently repeated, paper dust accumulates on the main body contact portion 124 and the lid contact portion 134, and contact failure may occur due to the accumulated paper dust. Conventionally, it has been described that it is recommended to periodically clean the contact portion in the instruction manual of the printer, and relied on the user's cleaning operation to prevent contact failure due to paper dust.

  However, since cleaning by user service lacks certainty, printers with a built-in cleaning mechanism have also been proposed. For example, a printer has been proposed in which a brush is attached to a belt and the contact surface is removed by the movement of the brush by driving the belt in order to automatically clean the paper dust accumulated in the sensor (Patent Document 1). .

JP 2009-202450 A

  It is desirable to provide a cleaning unit because it is not reliable to rely only on user cleaning for cleaning the contact portion. The cleaning unit is required to reliably clean dirt such as paper dust and not to increase the volume of the printer.

  In view of the above problems, an object of the present invention is to provide a printer having a cleaning portion that cleans a contact portion provided between a main body portion and a lid portion.

  In order to achieve the above object, in the printer comprising: a main body portion that stores a continuous print medium; and a lid portion that is provided in the main body portion so as to be openable and closable and protects the print medium stored in the main body portion. A detection unit that is provided in a unit and detects a mark preprinted on the print medium in order to cue the print medium; and the lid unit and the main body to transmit a signal of the detection unit to the main body unit A pair of contact portions that are non-contacted when the lid portion is opened and contacted when the lid portion is closed, and a main body portion of the pair of contact portions in conjunction with the opening / closing operation of the lid portion. The cleaning part which cleans the contact part of is provided.

  ADVANTAGE OF THE INVENTION According to this invention, the printer which has a cleaning part which cleans the contact part provided between the main-body part and the cover part can be provided.

1 is an external view of an entire printer 1 to which an embodiment of the present invention is applied. It is a figure which shows the main-body part 10 of the state which removed the cover part 40, and the paper 200 single-piece | unit. It is a figure which shows the state which further decomposed | disassembled some main-body parts. It is the figure which looked at the cover part 40 from the back surface direction of FIG. It is a figure which shows the shape of the platen holder 54 seen from the p3 direction of FIG. FIG. 3 is a diagram showing an outline of wiring between a sensor 44 and a main board 14. It is a figure which shows the main-body part 10 provided with the cleaning part by 1st Embodiment from an upper surface. It is a figure which shows the shape of the main body contact part 30 and the lid contact part 50 applied to 1st Embodiment. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 schematically illustrates an operation of a cleaning unit according to a first embodiment, and is a diagram illustrating a printer 1 from the right side. It is a figure which shows the main-body part 10 in which the cleaning part by 2nd Embodiment was provided from the upper surface. It is a figure which illustrates typically the operation by the cleaning part by a 2nd embodiment. It is a figure which shows the main-body part 10 and the cover part 40 of the printer 1 in which the cleaning part by 3rd Embodiment was provided. It is a figure which shows the main-body part 10 of 3rd Embodiment from the upper surface. It is a figure which expands and shows the main body contact part 80 and the lid | cover contact part 84 of 3rd Embodiment. It is a figure which shows the main-body part 10 and the cover part 40 of the printer 1 in which the modification of the cleaning part of 3rd Embodiment was provided. It is a figure which expands and shows the main body contact part 90 and the lid | cover contact part 94 of the modification of 3rd Embodiment. It is a figure which illustrates typically the operation by the cleaning part by the modification of a 3rd embodiment. FIG. 2 is a diagram illustrating an appearance of a portable printer. FIG. 3 is a diagram illustrating a state in which a lid is removed from a main body 120 and an appearance of a sheet 200 alone. It is a schematic diagram for demonstrating the mode of a contact with the main body contact part 124 and the lid | cover contact part 134. FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Three aspects of the first, second, and third embodiments will be described as the contact cleaning unit. First, the main body 10 and the lid 40 of the printer 1 common to the first to third embodiments will be described with reference to FIGS.

  FIG. 1 is an external view of an entire printer 1 to which this embodiment is applied. FIG. 1A is a perspective view of the printer 1 as viewed obliquely from above. FIG. 1B is a left side view of the printer 1. The printer 1 is a portable printer with a built-in battery, and has an oval shape when viewed from the side (see FIG. 1B). In the following description, the width direction of the printer 1 is expressed as the x direction, the depth direction of the printer 1 is expressed as the y direction, and the height direction of the printer 1 is expressed as the z direction. Further, in the following drawings, directions of the respective drawings are shown with reference to x, y, and z shown in FIG.

  The printer 1 is roughly composed of a main body portion 10 and a lid portion 40. An operation unit 11 is disposed on the front side of the printer 1, and the operation unit 11 is provided in the main body unit 10. A printing medium printed inside the printer 1 (hereinafter referred to as a sheet 200) is formed in the p direction in a form as indicated by a broken line from a slit 12 which is long in the width direction provided between the main body 10 and the lid 40. Discharged.

  The printer 1 includes a mechanical unit 13, a main board 14, a wireless board 15, an FFC cable 16, and the like. The mechanical unit 13 includes a transport unit that transports continuous paper 200 such as roll paper or fan hold paper, and a printing unit that prints on the transported paper. The main board 14 is a main electric board on which a control unit, a drive unit, a display control unit, and the like that operate the printer 1 are mounted. The wireless board 15 performs wireless data communication (for example, Bluetooth (registered trademark)) between the printer 1 and an external device. The FFC cable 16 electrically connects the operation unit 11 and the main board 14.

  FIG. 2 is a diagram showing the main body 10 and the sheet 200 alone with the lid 40 removed. Inside the left and right side surfaces of the main body portion 10, a bearing 22 for rotating the lid portion 40 is provided. In FIG. 2, the right bearing 22 is hidden. A main body contact portion 30 is provided on the right side surface of the main body portion 10 so as to face upward in the center in the depth direction. The main body contact portion 30 is a contact portion on the main body portion 10 side for connecting a sensor provided in the lid portion 40 described later and the main board 14 of the main body portion 10. A pair of contact portions is configured together with a contact portion on the lid portion 40 side described later.

  On the back side of the main body 10, a storage unit 20 is formed as a space for storing paper, and the paper 200 is stored. Here, a thermal roll paper is shown as the paper 200. On the back surface of the paper 200 (the back surface of the printing surface), near-end marks 202 are printed in advance at predetermined intervals on one side as a mark for cueing the paper 200 or conveying a certain length. A cutter unit 18 for cutting the discharged paper 200 is provided on the surface of the slit 12 of the main body unit 10. The cutter unit 18 may be provided on the lid unit 40 side.

  The lid 40 is attached to the main body 10 so as to be openable and closable so as to protect the paper 200 stored by covering the storage unit 20 of the main body 10. Rotating shafts 41 corresponding to the bearings 22 are provided on the left and right sides of the lid portion 40. In FIG. 2, the left rotation shaft 41 is hidden.

  A platen 42 that sandwiches the paper 200 facing the print head provided in the mechanical unit 13 is provided along the width direction on the front side of the lid 40. A case portion 54a provided on the platen holder 54 described with reference to FIGS. 4 and 5 is disposed on the front side of the right side surface of the lid portion 40 so as to protrude downward, and the lid contact portion 50 is attached to the case portion 54a. The lid contact portion 50 is one contact of a pair of contact portions corresponding to the main body contact portion 30. With the lid portion 40 closed, the main body contact portion 30 contacts the lid contact portion 50 and is electrically connected.

  FIG. 3 is a diagram illustrating a state in which a part of the main body 10 is further disassembled. The mechanical unit 13 shown in FIG. 1B is shown in a perspective view. The mechanical unit 13 includes a driving motor and a driving roller as a transport unit, and includes a thermal head unit as a printing unit, for example, when the paper 200 is thermal paper. The mechanical unit 13 is assembled to the main body 10 with screws m on the left and right.

  The main body contact portion 30 is provided on the main body contact substrate 31, and the main body contact substrate 31 is assembled to the right side surface of the main body portion 10 with a screw m. The main body contact board 31 and the main board 14 are connected by a cable 32. One end of the cable 32 is attached to a connector 31 a provided on the main body contact board 31. Since the s1 part surrounded by the broken line of the main body contact part 30 differs depending on the embodiment described later, it will be described in each embodiment.

  Further, in order to protect the main board 14, a flat middle cover 24 is provided, and the middle cover 24 is assembled to the main body portion 10 with screws m on the left and right.

  FIG. 4 is a view of the lid 40 as seen from the inside (the back surface direction in FIG. 2). The x and z directions are opposite to those in FIG. A platen holder 54 that holds the platen 42 is provided inside the lid 40. In FIG. 4, the platen holder 54 is shown separated from the back surface of the lid 40. The platen 42 is also shown separated from the platen holder 54. The platen 42 is an elongated rod-like member and is assembled to the platen holder 54 in the p2 direction.

  As shown in FIG. 4, a case portion 54a is formed on the left side surface of the platen holder 54, and the lid contact substrate 51 is attached to the case portion 54a. The s2 portion including the lid contact substrate 51 is different in each embodiment, and will be described in each embodiment.

  A sensor 44 is attached to the left side of the platen holder 54. The sensor 44 is a sensor that detects the near end mark 202 printed in advance on the back surface of the paper 200. The sensor 44 is a reflective sensor that emits light to the back surface of the paper 200 and detects the reflected light.

  FIG. 5 is a view showing the shape of the platen holder 54 as seen from the p3 direction of FIG. FIG. 5A is a diagram illustrating a state where the sensor substrate 45 and the like are separated from the platen holder 54. FIG. 5B is a diagram illustrating a state in which the sensor substrate 45 and the like are assembled to the platen holder 54.

  The sensor substrate 45 is a substrate on which the sensor 44 is mounted, and the sensor 44 is mounted on the back surface of the sensor substrate 45 as viewed in FIG. A connector 45a is mounted on the surface of the sensor substrate 45 opposite to the mounting surface of the sensor 44. An opening 54b for exposing the sensor 44 is formed in the lower left of the platen holder 54, and the sensor substrate 45 is assembled at a corresponding position (FIG. 5B).

  The lid contact substrate 51 is assembled to the case portion 54a. A lid contact portion 50 is provided on the back side of the lid contact substrate 51, and a connector 51 a is mounted on the front side of the lid contact substrate 51. Further, a cable 52 is attached to the connector 45a of the sensor substrate 45 and the connector 51a of the lid contact substrate 51, and the cable 52 is wired in the platen holder 54 as shown in FIG.

  FIG. 6 is a diagram showing an outline of wiring between the sensor 44 and the main board 14. The main board 14 and the main body contact board 31 are connected by a cable 32, and the lid contact board 51 and the sensor board 45 are connected by a cable 52. By moving the lid portion 40 to the closed position, the main body contact portion 30 of the main body contact substrate 31 and the lid contact portion 50 of the lid contact substrate 51 come into contact, and the main board 14 and the sensor 44 are connected.

  When 3.3 V is applied from the main board 14 to the terminal 01 of the sensor 44, light is emitted from the LED inside the sensor 44 to the paper 200. The light receiving element detects the reflected light of the paper 200 and a signal (MARK) corresponding to the reflectance of the paper 200 is output from the terminal 04 of the sensor 44. The control unit of the main board 14 detects the level of the signal (MARK) output from the sensor 44. Since the reflectance decreases due to the appearance of the black near end mark 202, the control unit of the main board 14 detects the appearance of the near end mark 202 by the change in the signal level and controls the drive motor of the mechanical unit 13 to control the head. Take-out or predetermined transport control.

  The printed paper 200 is discharged from the slit 12 to the outside as shown in FIG. The user cuts the paper 200 discharged for each transaction or requirement by the cutter unit 18 and stores it or hands it to the customer as necessary. Part of the fine paper dust generated each time it is cut accumulates on the pair of contact portions (the lid contact portion 50 and the main body contact portion 30). In particular, since the main body contact portion 30 is disposed so as to be exposed on the lower side, paper powder is likely to be deposited. Below, a specific cleaning means (cleaning part) is demonstrated.

[First Embodiment]
In the first embodiment, an air pump that blows air to the main body contact portion 30 in conjunction with opening and closing of the lid portion 40 is mounted, and the paper dust deposited on the main body contact portion 30 is cleaned with air. FIG. 7 is a view showing the main body 10 provided with the cleaning unit according to the first embodiment from the top, and shows a state in which the lid 40 is removed in order to clarify the shape of the cleaning unit.

  The cleaning unit according to the first embodiment includes an air pump 60, a hose 66, and a blowing unit 68. The air pump 60 includes a piston 62 and a cylinder 64. A piston 62, a cylinder 64, a hose 66, and a blow-out portion 68 are provided in order from the back of the right side surface of the main body 10 toward the front. The cleaning unit is attached substantially parallel to the y direction. The blow-out part 68 is disposed immediately before the main body contact part 30 with the blow-out port facing the main body contact part 30.

  The tip of the piston 62 is attached to a hinge 55 provided on the inner side of the lid 40. Here, only the hinge 55 of the lid 40 is shown. A pump shaft 34 that rotatably supports the air pump 60 is provided on the right side surface of the main body 10. The air pump 60 rotates about the pump shaft 34 with respect to the main body 10 by a change in the piston position according to the rotation of the lid 40. The change in the angle of the air pump 60 due to the opening and closing of the lid 40 will be described in detail with reference to FIG.

  FIG. 8 is a diagram showing the shapes of the main body contact portion 30 and the lid contact portion 50 applied to the first embodiment. FIG. 8A is an enlarged view of the s1 portion shown in FIG. 3, and is an enlarged view of the main body contact portion 30. FIG.

  The main body contact portion 30 includes a pin 30a and a housing 30b. The main body contact portion 30 is of a type called a contact probe or a spring pin connector. The main body contact portion 30 is mounted on the main body contact board 31. The housing 30b is a case of the main body contact portion 30, and has a tube (not shown) and a spring (not shown) inside.

  The tube is in electrical contact with the pin 30a via a spring inside the housing 30b, and holds the pin 30a so that it can move up and down. A part of the tube is connected to the connector 31 a mounted on the main body contact board 31 in a pattern. The pin 30a is a metal pin, and is connected to the tube inside the housing 30b so as to be movable up and down. The spring urges the pin 30a outward and makes the pin 30a and the tube come into contact with each other.

  FIG. 8B is an enlarged view of a portion s2 in FIG. 4 and an enlarged view of the lid contact portion 50. FIG. The lid contact portion 50 is formed as a flat electric pattern on the lid contact substrate 51. The lid contact portion 50 is subjected to processing such as gold plating or nickel plating. The lid contact substrate 51 is assembled to a case portion 54 a provided on the platen holder 54.

  FIG. 9 schematically illustrates the operation of the cleaning unit according to the first embodiment, and is a diagram illustrating the printer 1 from the right side. FIG. 9A shows a state where the lid 40 is in the open position. The lid 40 is rotated about the center c in the −q direction (clockwise) with respect to the main body 10 by the rotation of the rotation shaft 41 and the bearing 22. The lid contact substrate 51 on which the sensor 44 and the lid contact portion 50 provided on the inside of the lid portion 40 are formed is lifted in conjunction.

  As described above, the main body portion 10 is provided with the main body contact portion 30 having the pins 30 a and the housing 30 b, and the main body contact portion 30 is connected to the main board 14 by the cable 32.

  Since the tip of the piston 62 is rotatably engaged with a hinge 55 provided inside the lid portion 40, the tip position of the piston 62 moves in accordance with the movement of the hinge 55 of the lid portion 40. Further, since the air pump 60 is rotatably supported by the main body 10 by the pump shaft 34, the angle of the air pump 60 also changes according to the movement of the tip position of the piston 62. The piston 62 moves in the direction of pushing into the cylinder 64 while rotating around the pump shaft 34.

  The blow-out portion 68 is fixedly disposed at a position close to the main body contact portion 30 and is in a fixed position regardless of the rotation angle of the air pump 60. The hose 66 that connects the blow-out portion 68 and the air pump 60 is made of a flexible material. Further, the hose 66 has a length that allows the air pump 60 to rotate.

  FIG. 9B shows a state in which the lid portion 40 is rotated in the + q direction (counterclockwise direction) and is rotated from the open position to the closed position. When the lid 40 is rotated in the + q direction, the air pump 60 is also rotated counterclockwise, and the piston 62 is moved so as to be pushed into the cylinder 64 while being rotated. Due to the movement of the piston 62 in the cylinder 64, the air sent out from the air pump 60 is blown out from the blowing portion 68 through the hose 66. The air blown in the k direction from the blow-out portion 68 directly hits the pin 30a of the main body contact portion 30. When paper dust is accumulated on the pin 30a, the accumulated paper dust is blown off. When the lid 40 is rotated in the −q direction, the operation is reversed, and the piston 62 moves so as to be pulled out from the cylinder 64 while rotating in the −q direction, and the state shown in FIG. Returned to

[Second Embodiment]
In the second embodiment, the paper powder accumulated on the main body contact portion 30 is cleaned by moving the brush on the main body contact portion 30 in conjunction with opening and closing of the lid portion 40. FIG. 10 is a diagram showing the main body 10 provided with the cleaning unit according to the second embodiment from the top, and shows a state in which the lid 40 is separated in order to clarify the shape of the cleaning unit. Parts common to the first embodiment are denoted by the same reference numerals.

  The cleaning unit according to the second embodiment includes a brush 70, an arm unit 72, and a rail 74. The brush 70 has a base having fibers having an appropriate thickness and waist strength planted, and slides on the main body contact portion 30 to clean the paper dust deposited on the main body contact portion 30. is there. The arm portion 72 is a rod-like member bent in an L shape, and a short arm portion 72b bent in the x direction is connected to a tip of a long arm portion 72a along the y direction. The distal end of the long arm portion 72 a is rotatably engaged with the hinge 56 inside the lid portion 40. The brush 70 is rotatably engaged with the end portion of the short arm portion 72b. Here, the lid 40 shows only the hinge 56. The rail 74 is a guide for moving the brush 70 driven by the arm portion 72 in the t direction along the main body contact portion 30.

  Since the shapes of the main body contact portion 30 and the lid contact portion 50 applied to the second embodiment are the same as those of the first embodiment, description thereof will be omitted.

  FIG. 11 schematically illustrates the operation of the cleaning unit according to the second embodiment, and is a diagram illustrating the printer 1 from the right side. FIG. 11A shows a state where the lid 40 is in the open position.

  As described above, the distal end of the long arm portion 72 a is rotatably engaged with the hinge 56 provided inside the lid portion 40, so that the arm portion 72 is positioned by the rotation of the lid portion 40. Change. A brush 70 is rotatably engaged with the short arm portion 72b via a hinge 76. The brush 70 is arrange | positioned so that the planted fiber may face the lower side. The rail 74 is fixedly disposed in the direction along the main body contact portion 30. The rail 74 is formed with a groove (not shown) for restricting the moving direction of the brush 70, and a part (not shown) of the base of the brush 70 is fitted into the groove. In addition, you may make it fit not a base of the brush 70 but a part of short arm part 72b of the arm part 72 to a groove part.

  FIG. 11B shows a state where the lid 40 is rotated in the + q direction and is rotated from the open position to the closed position. In conjunction with the rotation of the lid portion 40 in the + q direction, the arm portion 72 moves in the + t direction (left direction) in FIG. 11 while falling down horizontally. This is because the distal end of the long arm portion 72 a is restricted by the hinge 56 of the lid portion 40, and the short arm portion 72 b is allowed to move only in the t direction by the rail 74.

  In accordance with the movement of the arm portion 72 that is interlocked with the opening and closing of the lid portion 40, the brush 70 that is rotatably engaged with the arm portion 72 slides on the main body contact portion 30 in the + t direction. After the brush 70 slides and passes over the main body contact portion 30, the lid contact substrate 51 comes down from above and contacts the main body contact portion 30.

  On the contrary, when the lid 40 is opened by rotating in the −q direction, the brush 70 slides on the main body contact portion 30 after the lid contact substrate 51 is separated from the main body contact portion 30 and is lifted by a predetermined amount. While moving in the -t direction. As described above, the brush 70 slides on the main body contact portion 30 and the main body contact portion 30 is cleaned even when the lid portion 40 is rotated in any direction.

[Third Embodiment]
In the third embodiment, paper dust and dirt accumulated on the main body contact portion and the lid contact portion are cleaned by mechanical contact between the main body contact portion and the lid contact portion.

  FIG. 12 is a diagram illustrating the main body 10 and the lid 40 of the printer 1 provided with the cleaning unit according to the third embodiment. Portions common to those described so far are denoted by the same reference numerals. A lid contact substrate 86 is arranged vertically (z direction) on the case portion 54a on the right side of the lid portion 40. Three lid contact portions 84 are mounted on the surface facing the outside of the lid contact substrate 86.

  A main body contact portion 80 is provided in a broken circle shown on the right side surface of the main body portion 10. Since the main body contact portion 80 is disposed on the back side of the right side surface of the main body portion 10 (inside the apparatus), the shape of the main body contact portion 80 is indicated by a broken line.

  FIG. 13 is a diagram showing the main body 10 of the third embodiment from the top. An enlarged view of the s3 portion, which is an enlarged view of the s3 portion around the main body contact portion 80, is shown below the main body portion 10. The main body contact board 82 is vertically arranged inside the right side surface in the same manner as the lid contact board 86. On the main body contact board 82, the connector 31a is mounted on the front side, and the three main body contact portions 80 are mounted along the y direction at the back of the connector 31a.

  FIG. 14 is an enlarged view of the main body contact portion 80 and the lid contact portion 84 of the third embodiment. FIG. 14A shows a state in which the lid portion 40 is rotated in the + q direction and the lid contact portion 84 approaches the main body contact portion 80. FIG. 14B is a view of the state where the lid contact portion 84 is connected to the main body contact portion 80 as viewed in the y direction. FIG. 14B shows a state in which the lid 40 is further rotated in the + q direction from the state of FIG. 14A and the lid 40 is completely closed.

  Three lid contact portions 84 are mounted on the lid contact substrate 86 along the y direction. Each lid contact portion 84 has a shape in which hemispherical protrusions 84b are stacked on a hemispherical bottom portion 84a. The back surface of each hemispherical bottom portion 84 a is mounted on the lid contact substrate 86. For example, the lid contact portion 84 may have a two-stage hemispherical shape formed by drawing a metal plate, or the bottom portion 84a and the projecting portion 84b separately formed may be joined by welding or the like. It may have been created.

  The main body contact portion 80 is a corrugated metal plate. In FIG. 14A, the main body contact portion 80 is mounted on the back surface of the main body contact board 82, and therefore, the main body contact board 82 is shown in a cutaway manner.

  The main body contact portion 80 is mounted on the main body contact substrate 82 so that the upper portion is fixed and the lower portion is free in an orientation in which the longitudinal direction is vertical. Three main body contact portions 80 are mounted along the y direction.

  When the lid contact portion 84 is connected to the main body contact portion 80, the hemispherical protrusion 84 b of the lid contact portion 84 is connected across the corrugated mountain and valley portion of the main body contact portion 80. At the time of connection, the cover contact portion 84 slides and moves on the surface of the main body contact portion 80 while greatly changing the frictional resistance, so that paper dust accumulated on the surfaces of the main body contact portion 80 and the cover contact portion 84 and attached dirt Is cleaned. Further, since the main body contact portion 80 has a corrugated shape, vibration occurs in the main body contact portion 80 when sliding, and thus the paper dust attached by the vibration is more likely to fall.

  Next, a modification of the third embodiment will be described. FIGS. 15-17 is a figure which shows the modification of 3rd Embodiment, and it demonstrates centering around a different point from the cleaning part of 3rd Embodiment. FIG. 15 is a diagram illustrating the main body 10 and the lid 40 of the printer 1 provided with a modification of the cleaning unit of the third embodiment.

  A lid contact substrate 96 is vertically arranged on the case portion 54a on the right side of the lid portion 40. Three lid contact portions 94 are mounted on the surface facing the outside of the lid contact substrate 96.

  A main body contact portion 90 is provided on the right side surface of the main body portion 10. The main body contact portion 90 is disposed inside the right side surface of the main body portion 10, and the s4 portion including the main body contact portion 90 will be described in detail with reference to FIG.

  FIG. 16 is an enlarged view of the main body contact portion 90 and the lid contact portion 94 according to a modification of the third embodiment. FIG. 16A is an enlarged view of the vicinity of the lid contact substrate 96 shown in FIG. Three lid contact portions 94 are mounted on the lid contact substrate 96. The lid contact portion 94 is a metal block and is a pentagonal member with a sharp tip as viewed from above. Furthermore, the center ridgeline 94a and the side surface 94b of each lid contact portion 94 have an arc shape centered on the center c.

  FIG. 16B is an enlarged view of the s4 portion shown in FIG. 15, and is an enlarged view of the main body contact portion 90 as viewed from above. Three main body contact portions 90 are mounted on the main body contact board 92 along with the connector 31a. The main body contact portion 90 has a trapezoidal depression formed on the left side as viewed from above.

  FIG. 16C is a diagram showing a state in which the lid contact portion 94 is connected to the main body contact portion 90. FIG. 16C is in the same direction as FIG. A total of three locations of the center ridgeline 94a and the left and right side surfaces 94b of each lid contact portion 94 come into contact with the corresponding trapezoidal depressions of the main body contact portion 90.

  FIG. 17 schematically illustrates the operation of the cleaning unit according to the modified example of the third embodiment, and is a diagram illustrating the printer 1 from the right side surface as in FIG. 9 and the like. Portions common to those described so far are denoted by the same reference numerals, and description thereof is omitted. FIG. 17A shows a state where the lid 40 is in the open position. FIG. 17B shows a state where the lid 40 is rotated to the closed position.

  As described above, the central ridgeline 94a and the left and right side surfaces 94b of each lid contact portion 94 are formed in an arc shape having a radius r from the center c. The lid contact portion 94 located on the inner side is formed by an arc having a smaller radius. Correspondingly, the contact surface of the trapezoidal depression of the main body contact portion 90 is also formed in an arc shape having a radius r from the rotation center c.

  Since the contact surfaces of both the lid contact portion 94 and the main body contact portion 90 are formed in an arc shape along the rotation locus, the lid contact portion 94 and the main body contact portion 90 are in linear contact. Become. That is, the three points of the central ridgeline 94a and the left and right side surfaces 94b of the lid contact portion 94 continuously contact the main body contact portion 90 with the recess portion 90a according to the rotation of the lid portion 40. Paper dust accumulated on the contact portion 90 and accumulated dirt can be more effectively cleaned. In addition, since the shape of this contact is polygonal, multipoint contact is possible, and the oxide film and corrosion film can be removed by the vertical action of the contact. Therefore, the sliding is prevented and the contact is stabilized.

According to the first to third embodiments described above, at least the following effects are exhibited.
In any of the embodiments, since the cleaning operation is performed in conjunction with the rotation operation of the lid portion, the cleaning is performed every time the sheet is replaced, and the contact portion is periodically cleaned.
In addition, since neither of them uses a dedicated drive source for cleaning, it is suitable for a portable printer that requires power saving.
In addition, according to the third embodiment, since the pair of contact portions can be cleaned without providing a dedicated member for cleaning, the size of the printer is not increased and the cost is not increased. Further, not only the main body contact portion but also the lid contact portion can be cleaned.
-Moreover, according to 3rd Embodiment, since the contact part is arrange | positioned in the vertical direction, compared with what is arrange | positioned horizontally, paper dust etc. are hard to accumulate.

Next, the modification etc. of the said embodiment are given.
In each embodiment, three examples of the number of contacts are shown, but this is an example, and the number of contacts is not limited to this.
In any of the embodiments, the example in which the pair of contact portions is provided on the right side face of the printer is shown as an example, but may be provided on the left side or the center.
The printer type is not limited to a portable printer, and can be applied to any printer having a contact portion on which paper dust or the like is deposited. Also, the printing method is not limited to the thermal type, and may be an ink jet type or a dot impact type.
In the first and second embodiments, as the pair of contact portions, the contact substrate is shown in the lid portion and the movable metal pin is shown in the main body portion, but they may be reversed. Further, the pair of contact portions is not limited to this combination. For example, a leaf spring may be used instead of the movable metal pin.
Each embodiment is not limited to a single embodiment, and the third embodiment may be combined with the first or second embodiment.

  Note that the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the components without departing from the scope of the invention in the implementation stage. Moreover, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, all the constituent elements shown in the embodiments may be appropriately combined. Furthermore, constituent elements over different embodiments may be appropriately combined. It goes without saying that various modifications and applications are possible without departing from the spirit of the invention.

DESCRIPTION OF SYMBOLS 1 Printer 10 Main body part 11 Operation part 12 Slit 13 Mechanical unit 14 Main board 18 Cutter part 22 Bearing 30, 80, 90 Main body contact part 30a Pin 30b Housing 31, 82, 92 Main body contact board 31a Connector 32 Cable 34 Pump shaft 40 Lid Part 41 Rotating shaft 42 Platen 44 Sensor 45 Sensor board 45a Connector 50, 84, 94 Lid contact part 51, 86, 96 Lid contact board 51a Connector 52 Cable 54 Platen holder 54a Case part 55, 56, 76 Hinge 60 Air pump 62 Piston 64 Cylinder 66 Hose 68 Blowout part 70 Brush 72 Arm part 74 Rail

Claims (3)

In a printer having a main body that stores a continuous print medium, and a lid that is provided in the main body so as to be openable and closable and protects the print medium stored in the main body.
A detection unit that is provided on the lid and detects a mark printed in advance on the print medium in order to cue the print medium;
A pair of contact portions provided in the lid and the main body so as to transmit a signal of the detection unit to the main body, non-contacting when the lid is opened, and contacting when the lid is closed;
A cleaning unit that cleans the contact portion of the main body portion of the pair of contact portions in conjunction with the opening and closing operation of the lid portion,
At least one of the pair of contact portions is a leaf spring that moves relatively while being pressed against the other contact portion in response to an operation to the closed position of the lid portion,
As the cleaning part, the leaf spring increases or decreases the pressing force to the other contact part during the movement.
A printer characterized by being formed into a wave shape along the longitudinal direction so as to repeat . The printer according to claim 1, wherein the other contact portion of the pair of contact portions is formed of a hemispherical protrusion . In a printer having a main body that stores a continuous print medium, and a lid that is provided in the main body so as to be openable and closable and protects the print medium stored in the main body.
A detection unit that is provided on the lid and detects a mark printed in advance on the print medium in order to cue the print medium;
A pair of contact portions provided in the lid and the main body so as to transmit a signal of the detection unit to the main body, non-contacting when the lid is opened, and contacting when the lid is closed;
A cleaning unit that cleans the contact portion of the main body portion of the pair of contact portions in conjunction with the opening and closing operation of the lid portion,
The lid portion is provided to be rotated and opened with respect to the main body portion,
The pair of contact portions are formed with one concave portion and the other convex portion that fits into the concave portion,
As the cleaning part, the contact part of the concave part and the convex part follows the turning trajectory so that one contact part fits while sliding on the other contact part according to the turning of the lid part. A printer characterized by being formed in a circular arc shape along .