JP2006231716A - Recorder, and assembling method of recorder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve workability without complicating structure in a recorder constituted by housing both machine part executing recording operation and control board in a casing. <P>SOLUTION: The dot impact printer 10 is constituted by housing a recording mechanism part 20 in an enclosure comprised of an upper case and a lower case. The recording mechanism part 20 has a roller and rubber legs 213 and 223 which are in contact with the lower case to support a load of the recording mechanism part 20. The side of the rubber legs 213 and 223 can be raised by rotating the recording mechanism part 20 about the roller. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a recording apparatus including an exterior and a recording mechanism unit accommodated in the exterior, and an assembling method of the recording apparatus.

2. Description of the Related Art Conventionally, various recording apparatuses such as a dot impact printer and an ink jet printer have been miniaturized, and the arrangement state of components inside a housing has become complicated. For example, a control board for performing various controls of the recording apparatus may be disposed on the back side or the back of the recording mechanism unit that performs the recording operation. In such a case, operations such as fixing and connecting the control board in the assembly process become complicated, and in addition, workability during maintenance deteriorates. In view of this, a configuration has been proposed in which a part on which the control board is mounted is drawn out during maintenance or the like (see, for example, Patent Document 1).
JP 2004-249484 A

  However, when a method such as unitization is used to improve workability, there is a problem that the structure of the housing becomes complicated, and further, there is a problem that costs increase.

  The present invention has been made in view of the above-described circumstances. In a recording apparatus configured by housing a mechanical part that performs a recording operation and a control board in a casing, the workability is improved without complicating the structure. It aims at improving.

  In order to solve the above-described problems, a recording apparatus according to the present invention is a recording apparatus in which a recording mechanism unit including a recording head is housed in an exterior made up of an upper case and a lower case. A pair of side frames constituting both ends in the direction, and supported at the lower part of each side frame so as to be rotatable at one end side of the side frame, and abutting against the lower case to load the recording mechanism unit And a ring member facing the lower case on the other end side of the side frame. The lower case has a receiving portion for receiving the roller, and the position of the roller in the receiving portion. A position restricting member that restricts the protrusion, a protrusion that is inserted into the ring member, and a concave portion that is located on a side of the protrusion. The serial receiving unit while abutting, characterized in that along the surface of the side frame about said roller is rotatable.

  According to the present invention, in the recording apparatus in which the recording mechanism unit is housed in the exterior including the upper case and the lower case, the recording mechanism unit includes the pair of side frames, and the rollers and the ring member are arranged on the side frames. The roller of the recording mechanism unit is received by the receiving unit provided in the lower case, and the position of the roller is regulated by the position regulating member. In addition, a recess is provided on the side of the protrusion inserted into the ring member, and the recording mechanism can rotate along the surface of the side frame around the roller with the roller in contact with the receiving portion. . For this reason, it is possible to rotate the recording mechanism portion in a state where the roller is in contact with the receiving portion and lift the ring member side of the recording mechanism portion, and further, between the ring member and the concave portion of the lower case. This state can be maintained by spanning a stick or the like. As a result, when a control board or the like is disposed below the recording mechanism section, it is possible to easily perform assembly work or maintenance work of the control board. Further, since the position of the roller is regulated by the position regulating member, the position of the recording mechanism unit is not shifted by lifting the ring member side of the recording mechanism unit, and the stability is excellent. Therefore, a recording apparatus that is easy to assemble, has excellent workability, and can be miniaturized can be realized with a simple structure.

  In the present invention, the recording mechanism unit includes a plurality of operation units including the recording head, and a control board for controlling the operation of the operation unit mounted on the recording mechanism unit at the bottom of the lower case. May be configured to be accommodated.

  In this case, since the control board that controls the plurality of operation units including the recording head included in the recording mechanism unit is accommodated in the bottom portion of the lower case, the recording apparatus can be reduced in size. When the assembly work or maintenance work related to the control board is performed, the recording mechanism unit needs to be rotated around the roller, so that a recording apparatus that is easy to assemble and has high workability can be realized. .

  An assembling method of a recording apparatus according to the present invention is an assembling method of a recording apparatus, in which a recording mechanism unit in which a plurality of operation units including a recording head are mounted in an exterior made up of an upper case and a lower case, The recording mechanism section includes a pair of side frames that constitute both ends in the longitudinal direction thereof, and is supported rotatably at one end side of the side frame at a lower portion of each side frame and abuts on the lower case. A roller that supports the load of the recording mechanism, and a ring member that faces the lower case at the other end of the side frame, and the lower case includes a plurality of receiving portions that receive the roller. A recording medium for controlling the position of the roller in the receiving portion; a protrusion inserted into the ring member; and a recess positioned on a side of the protrusion; The structure portion is configured to be rotatable along the surface of the side frame about the roller in a state where the roller is in contact with the receiving portion, and the recording mechanism portion is provided at a bottom portion of the lower case. A step of disposing a control board for controlling the operation of the operation portion mounted on the recording member; a step of bringing the roller of the recording mechanism portion into contact with the receiving portion of the lower case; and the ring member of the recording mechanism portion A step of wiring the control board and the recording mechanism section in a state where the rod body is bridged between the hole of the lower case and the recess of the lower case, and the load of the recording mechanism is supported by the rod body and the roller. And removing the rod, rotating the recording mechanism around the roller, and inserting the protrusion of the lower case into the ring member, and assembling the recording apparatus.

  According to the present invention, in a method for assembling a recording apparatus in which a recording mechanism unit in which a plurality of operation units including a recording head are mounted in an exterior made up of an upper case and a lower case is provided. The lower case has a roller and a ring member, and the lower case has a plurality of receiving portions for receiving the roller, a position regulating member for regulating the position of the roller, a protrusion inserted into the ring member, and a side of the protrusion. The recording mechanism portion can be rotated in a state where the roller is in contact with the receiving portion, the control board is disposed on the bottom portion of the lower case, and the roller of the recording mechanism portion is disposed on the lower case. The rod is put in contact with the receiving portion, the rod body is bridged between the hole of the ring member of the recording mechanism portion and the concave portion of the lower case, and the load of the recording mechanism is supported by the rod body and the roller. Wiring to the recording mechanism There, remove the rod, the roller rotates the recording mechanism section around the, by inserting the projection of the lower case to the ring member, it is possible to assemble the recording device. For this reason, it is possible to quickly assemble a recording apparatus having a configuration in which the control board is accommodated below the recording mechanism unit by a simple operation. In addition, the control board can be wired by rotating the recording mechanism section and spanning the rod, and a recording apparatus that is easy to assemble and has high workability can be realized without using a complicated configuration.

  According to the present invention, in the recording apparatus in which the recording mechanism unit is housed in the exterior including the upper case and the lower case, the recording mechanism unit includes the pair of side frames, and the rollers and the ring member are arranged on the side frames. It is configured to receive the roller of the recording mechanism part by a receiving part provided in the lower case, and to restrict the position of the roller by a position restricting member, and further to the side of the protrusion inserted into the ring member Recesses are provided, and the recording mechanism can be rotated along the surface of the side frame around the roller while the roller is in contact with the receiving portion. Therefore, it is easy to assemble without using a complicated structure. Therefore, it is possible to realize a recording apparatus that is excellent in workability and can be miniaturized.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 2 are external perspective views of a dot impact printer 10 according to an embodiment of the present invention. In particular, FIG. 1 is a perspective view of the dot impact printer 10 as viewed from above, and FIG. FIG. 3 is a perspective view showing the configuration of the recording mechanism unit 20 built in the dot impact printer 10, and FIG. 4 is a cross-sectional view of the dot impact printer 10 taken along the line AA 'in FIG.

  The dot impact printer 10 as a recording apparatus of the present invention uses a recording head 30 that ejects a plurality of recording wires (not shown) to eject characters onto a recording surface of a recording medium via an ink ribbon. The image including it is recorded. Here, as the recording medium, various forms of sheets (including paper and resin) such as cut paper, continuous paper, and copy paper can be used. In this embodiment, the recording medium is continuous. An example using paper will be described.

As shown in FIG. 1, the dot impact printer 10 has a substantially box-shaped exterior made up of an upper case 11 and a lower case 12, and a recording mechanism section 20 (FIG. 3) is built in the exterior.
An upper surface cover 13 is disposed on the upper surface front portion of the upper case 11 and is opened upward when a ribbon cartridge 50 (FIG. 6) to be described later is attached to the recording mechanism unit 20. A front paper feed port 101 for supplying continuous paper to the recording mechanism unit 20 is opened at the lower front surface of the upper case 11. A front cover 15 that opens forward is disposed on the front paper feed port 101, and the front cover 15 can be opened so that continuous paper can be set in the recording mechanism unit 20.

As shown in FIGS. 1 and 2, the upper case 11 is provided with an upper back cover 14 that is continuous from the upper rear portion to the rear surface of the upper case 11. The upper back cover 14 is connected to the lower case 12 by a hinge portion 17 and is opened rearward during maintenance of a recording mechanism portion 20 described later. A paper discharge port 103 through which the continuous paper after recording is discharged is opened on the back surface of the upper back cover 14. On the back surface of the upper case 11, below the upper back cover 14, a rear paper feed port 102 for supplying continuous paper to the recording mechanism unit 20 is opened.
Further, an I / F cover 16 is disposed at the lower back of the lower case 12. A connector (not shown) for connecting the dot impact printer 10 to various devices such as a computer is disposed inside the I / F cover 16. The I / F cover 16 is opened and a cable is connected to the connector. Can be connected.
On the bottom surface of the lower case 12, two front leg rubbers 104 are disposed on the front side, and two rear leg portions 105 are disposed on the rear side. The front leg rubber 104 and the rear leg 105 abut on the installation surface on which the dot impact printer 10 is installed.
An operation panel 106 is disposed on the upper front surface of the upper case 11. The operation panel 106 includes switches for performing various settings relating to the operation of the dot impact printer 10, an indicator for notifying the operation state, a liquid crystal display panel, and the like. A switch 107 for turning on / off the power source of the dot impact printer 10 is disposed at the corner of the front surface of the lower case 12. As shown in FIG. 2, a power connector 108 for supplying power to the dot impact printer 10 is disposed on the back surface of the lower case 12.

Next, the configuration of the recording mechanism unit 20 will be described. The recording mechanism unit 20 includes a recording head 30, a carriage drive motor 32, a conveyance motor (not shown), a roller opening / closing motor (not shown), and the like, which correspond to the operation unit of the present invention.
As shown in FIGS. 3 and 4, the recording mechanism unit 20 includes a right side frame 21, a left side frame 22, a front frame 23, and a base frame 24 as main body frames. The main body frame is provided with a recording head 30, a carriage 28 for mounting the recording head 30, a front paper feed mechanism 26 that supplies continuous paper to the recording head 30 from the front side, and a recording paper 30 from the rear side. A rear paper feeding mechanism 27 that supplies continuous paper, a transport mechanism 34 that conveys the continuous paper supplied by the front paper feeding mechanism 26 and the rear paper feeding mechanism 27 toward the recording head 30, and recording by the recording head 30. A paper discharge mechanism 35 for discharging the continuous paper and a ribbon drive unit 37 for driving a ribbon cartridge (not shown) are provided.

The right side frame 21 and the left side frame 22 are erected so as to face each other at both ends of the recording mechanism unit 20, and the front frame 23 and the base frame 24 are interposed between the right side frame 21 and the left side frame 22. It is bridged. The front frame 23 is located on the front side of the recording mechanism unit 20, and the base frame 24 is located on the rear side below the recording mechanism unit 20.
The front paper feed mechanism 26 includes a front paper feed table 261 disposed in the lower front portion of the recording mechanism unit 20, a tractor support shaft 263, which extends in parallel between the right side frame 21 and the left side frame 22, and A tractor drive shaft 264, a pair of left and right front tractors 262, and a front tractor cover 266 attached integrally to each front tractor 262 are provided. The front paper feed tray 261 has a surface extending obliquely upward from substantially the lower end portion of the front surface of the recording mechanism unit 20, and this surface supports continuous paper inserted from the front paper feed port 101 (FIG. 1) from below. To do. A tractor support shaft 263 and a tractor drive shaft 264 are disposed above the front sheet feed table 261, and a pair of left and right front tractors 262 are inserted through the tractor support shaft 263 and the tractor drive shaft 264. Each of the front tractors 262 has a flat surface portion, and the flat surface portion is arranged so as to be continuous with the surface of the front paper feed table 261. The front tractor 262 includes a tractor belt (not shown) having a plurality of pins 265. The tractor belt is hung on the tractor support shaft 263 and the tractor drive shaft 264. The tractor support shaft 263 is rotatably arranged, while the tractor drive shaft 264 is driven to rotate by a transport motor (not shown). The tractor belt rotates with the rotation of the tractor drive shaft 264 and moves the pin 265 along the plane of the front tractor 262. The pin 265 is exposed from the flat surface portion of the front tractor 262, and engages with sprocket holes formed at both ends of the continuous paper. When the tractor belt rotates and the pin 265 moves, the continuous paper is conveyed to the recording head 30 side. The front tractor 262 is provided with a front tractor cover 266 that covers the pin 265 from above. By placing the continuous paper on the front tractor 262 and covering the front tractor cover 266, the state where the pin 265 is engaged with the sprocket hole of the continuous paper is maintained.

The rear paper feeding mechanism 27 includes a tractor support shaft 272 and a tractor drive shaft 273 that are spanned in parallel between the right side frame 21 and the left side frame 22, a pair of left and right rear tractors 271, and each rear tractor 271. A rear tractor cover 275 attached integrally and a sprocket wheel 276 disposed behind the rear tractor 271 are provided.
On the rear side of the recording mechanism unit 20, a part of the base frame 24 is formed in a plane at a position corresponding to the rear sheet feed port 102 (FIG. 2), and is inserted from the rear sheet feed port 102 by this plane. The continuous paper is supported from below. A tractor support shaft 272 and a tractor drive shaft 273 are arranged side by side on the base frame 24, and two rear tractors 271 are inserted through the tractor support shaft 272 and the tractor drive shaft 273. The rear tractor 271 has a flat portion, and the flat portion is disposed so as to be continuous with the flat surface formed by the base frame 24. Further, the rear tractor 271 includes a tractor belt (not shown) having a plurality of pins 274, and this tractor belt is spanned between a tractor support shaft 272 and a tractor drive shaft 273. The drive shaft 273 is rotated by being driven. The pin 274 is exposed on the flat surface portion of the rear tractor 271 and engages with a sprocket hole formed in the continuous paper. Then, the pin 274 is moved by the rotation of the tractor belt, and the continuous paper is conveyed to the front side.
A sprocket wheel 276 is disposed behind the rear tractor 271. The sprocket wheel 276 is a pair of left and right ring-shaped members inserted through a shaft spanned between the right side frame 21 and the left side frame 22, and the shaft is driven by a transport motor (not shown). Rotate. A plurality of pins 277 are arranged on the circumferential surface of the sprocket wheel 276, and these pins 277 are engaged with the sprocket holes of the continuous paper conveyed from the rear tractor 271 from above. Then, the continuous paper is wound up by the rotation of the sprocket wheel 276 and conveyed toward the recording head 30. The rear tractor 271 is provided with a rear tractor cover 275 that covers the pin 277 from above. By placing the continuous paper on the rear tractor 271 and covering the rear tractor cover 275, the state in which the pins 274 are engaged with the sprocket holes of the continuous paper is maintained.

The transport mechanism 34 includes a first transport roller 341 that contacts the back surface of the continuous paper, a second transport roller 342 that faces the first transport roller 341 via the continuous paper, and a second transport that pivotally supports the second transport roller 342. A conveyance roller shaft 343 and a platen 31 disposed to face the recording head 30 are provided.
The first conveying roller 341 is disposed above the sprocket wheel 276 and abuts against the back surface of the continuous paper. A second transport roller shaft 343 is disposed at a position facing the first transport roller 341 across the continuous sheet. The second transport roller shaft 343 is rotatably spanned between the right side frame 21 and the left side frame 22, and a plurality of second transport rollers 342 are inserted therethrough. The second conveyance roller shaft 343 can move within a predetermined range by the operation of a roller opening / closing motor (not shown), and the second conveyance roller 342 is separated from the first conveyance roller 341 by the operation of the roller opening / closing motor. Alternatively, it is biased toward the first conveying roller 341 side.
The second transport roller 342 is urged toward the first transport roller 341 so that the continuous paper is sandwiched and supported between the first transport roller 341 and the second transport roller 342. The first transport roller 341 is driven by a transport motor (not shown) and the drive wheel train 33, and the continuous paper is transported to the recording head 30 side by the rotation of the first transport roller 341.

  The carriage 28 is inserted through a carriage shaft 29 spanned between the right side frame 21 and the left side frame 22. A belt is mounted on the carriage 28 between a carriage drive motor 32 and a carriage drive pulley (not shown). The belt is driven by the carriage drive motor 32 and the carriage drive pulley, and thus along the carriage shaft 29. Moving. A recording head 30 is mounted on the carriage 28. The recording head 30 faces the recording surface of the continuous paper above the transport mechanism 34, and an ink ribbon (not shown) is disposed between the recording surface of the continuous paper and the recording head 30. By ejecting a recording wire (not shown) from the recording head 30 toward the continuous paper, ink adheres to the recording surface of the continuous paper, and an image including characters is recorded. At a position facing the recording head 30, a platen 31 is disposed on the back side of the continuous paper. The platen 31 is a flat platen having a plane in contact with the continuous paper, and supports the protruding output of the recording wire in this plane. The platen 31 is configured to be movable in a direction perpendicular to the continuous paper, and is urged toward the continuous paper by a spring (not shown).

The paper discharge mechanism 35 includes a first paper discharge roller 351 that contacts the continuous paper recorded by the recording head 30 from the back side, a movable frame 353 disposed from the right side frame 21 to the left side frame 22, and a movable frame 353. , A movable shaft 354 and a unit support shaft 355, a spring 356 assembled across the movable frame 353 and the left side frame 22, a plurality of paper discharge roller units 357 fixed to the movable frame 353, and a paper discharge roller And a second paper discharge roller 358 assembled in the unit 357.
The first paper discharge roller 351 is in contact with the back surface of the continuous paper above the recording head 30 and is driven to rotate by a conveyance motor (not shown) and the drive wheel train 33. A movable shaft 354 and a unit support shaft 355 are disposed at a position facing the first paper discharge roller 351 via the continuous paper. The movable shaft 354 and the unit support shaft 355 are spanned between the right side frame 21 and the left side frame 22, and the unit support shaft 355 is fixed to the right side frame 21 and the left side frame 22, while the movable shaft 354. Is movable so as to draw a circle around the unit support shaft 355. The movable frame 353 is fixed to the movable shaft 354 and the unit support shaft 355 and is movable together with the movable shaft 354.
A plurality of paper discharge roller units 357 arranged in the axial direction of the movable shaft 354 and the unit support shaft 355 are attached to the movable frame 353. A second paper discharge roller 358 is assembled to each of the paper discharge roller units 357 at positions separated from the unit support shaft 355. The movable frame 353 is urged in a direction approaching the first paper discharge roller 351 about the unit support shaft 355 by a spring 356 spanned between the left side frame 22. Therefore, the second paper discharge roller 358 included in the paper discharge roller unit 357 is urged in a direction in which the second paper discharge roller 358 is pressed against the first paper discharge roller 351, and the continuous paper is fed to the first paper discharge roller 351 and the second paper by this urging force. It is sandwiched between the paper discharge rollers 358. Further, the movable shaft 354 is moved against the urging force of the spring 356 by the operation of a roller opening / closing motor (not shown). That is, when the roller opening / closing motor operates, the movable shaft 354 moves against the urging force of the spring 356, the second sheet discharge roller 358 is separated from the first sheet discharge roller 351, and when the roller opening / closing motor is not operated, The second paper discharge roller 358 is pressed against the first paper discharge roller 351 by the biasing force of the spring 356.

  A ribbon drive unit 37 is disposed at the front right end of the recording mechanism unit 20. The ribbon drive unit 37 is fixed to the right side frame 21 and drives a winding mechanism provided in a ribbon cartridge (not shown) to perform a winding operation of the ink ribbon (not shown). By this winding operation, a new ink ribbon is always supplied between the recording head 30 and the continuous paper.

FIG. 5 is a plan view showing the configuration of the upper case 11 on the bottom side, that is, the recording mechanism unit 20 side, and FIG. 6 is a plan view showing the configuration of the upper case 11 on the recording mechanism unit 20 side. . 7 and 8 show a state in which the recording mechanism 20 is placed on the lower case 12 and tilted, FIG. 7 is a perspective view, and FIG. 8 is a rear view.
Here, with reference to FIGS. 1 to 4 and FIGS. 5 to 8, the mounting structure between the upper case 11 and the lower case 12 that are the exterior of the dot impact printer 10 and the recording mechanism unit 20 will be described in detail. Explained.

  As shown in FIG. 3, a right front damper 211 is disposed on the front side and a right rear damper 212 is disposed on the rear side at the upper end of the right side frame 21. In the left side frame 22 as well, a left front damper 221 is disposed at the upper end on the front side, and a left rear damper 222 is disposed at the upper end on the rear side. Each of these dampers is made of a material having a predetermined elasticity, such as rubber (including natural rubber and synthetic rubber) or synthetic resin such as silicone rubber. The four dampers disposed at the upper four corners of the recording mechanism unit 20 are in contact with the bottom surface of the upper case 11. In addition, when the surface of each of the dampers has a friction coefficient equal to or greater than a predetermined value, the recording mechanism unit 20 and the upper case 11 are more strongly fixed by friction with the upper case 11, which is preferable.

  As shown in FIG. 5, four damper receivers 111, 112, 113, 114 are formed in the upper case 11. On the bottom surface of the upper case 11, a large number of wall bodies are provided to give the upper case 11 the necessary strength, and the damper receivers 111, 112, 113, 114 have some of these wall bodies more than other parts. Is also formed to be a recess. As shown in FIG. 4, the damper receiver 111 is fitted to the right front damper 211 of the recording mechanism unit 20, and the damper receiver 112 is fitted to the right rear damper 212. Similarly, the damper receiver 113 (FIG. 5) is fitted to the left front damper 221, and the damper receiver 114 (FIG. 5) is fitted to the left rear damper 222.

On the other hand, as shown in FIG. 3, a pair of left and right rollers 25 projecting to the front side are disposed below the recording mechanism unit 20. The roller 25 includes a ring made of a material having a predetermined elasticity such as rubber (including natural rubber and synthetic rubber) or a synthetic resin such as silicone rubber, and a shaft that rotatably supports the ring. The shaft of the right roller 25 is fixed to the right side frame 21, the shaft of the left roller 25 is fixed to the left side frame 22, and the wheels can rotate along the surfaces of the right side frame 21 and the left side frame 22, respectively. It is.
Further, as shown in FIG. 6, roller receivers 121 and 122 are formed at the corners on the front side of the lower case 12. These roller receivers 121 and 122 are recessed portions that fit into the roller 25, and a right roller restricting member 123 and a left roller restricting member 124 are disposed on the sides thereof.
The two rollers 25 included in the recording mechanism unit 20 are fitted in the roller receivers 121 and 122, respectively. In this state, the right roller restricting member 123 comes into contact with the side surface of the right roller 25 from the left side, and the left roller restricting member 124 comes into contact with the side surface of the left roller 25 from the right side. Accordingly, the position of the roller 25 in the longitudinal direction of the recording mechanism 20, that is, the axial direction of the carriage shaft 29 is restricted by the right roller restriction member 123 and the left roller restriction member 124.

Further, as shown in FIG. 7, a pair of left and right rubber legs 213 and 223 as ring members of the present invention are disposed at the lower part on the rear side of the recording mechanism section 20. The rubber legs 213 and 223 are members formed by molding a material having a predetermined elasticity such as rubber (including natural rubber and synthetic rubber) or synthetic resin such as silicone rubber into a ring shape having a hole in the center. The rubber leg 213 is fixed to the rear side lower part of the right side frame 21, and the rubber leg 223 is fixed to the rear side lower part of the left side frame 22.
In addition, a space is formed at a position corresponding to the hole of the rubber leg 213 at the joint portion between the rubber leg 213 and the right side frame 21, and a rod body having a predetermined length or less is inserted into the hole of the rubber leg 213. It can be inserted. Similarly, a space is formed in the rubber leg 223 at a position corresponding to the hole of the rubber leg 223 at the joint with the left side frame 22.
On the other hand, as shown in FIG. 6, a pair of left and right support protrusions 125 and 126 are formed on the rear side of the lower case 12 as the protrusions of the present invention. The support protrusions 125 and 126 are columnar protrusions that protrude upward at the rear part of the lower case 12, and their tips are rounded.
Then, in a state in which the recording mechanism unit 20 is joined to the lower case 12, the support protrusion 125 of the lower case 12 is fitted into the hole of the rubber leg 213 of the recording mechanism unit 20 as shown in FIG. 4. Here, the outer diameter of the support protrusion 125 is substantially the same as or slightly larger than the diameter of the hole of the rubber leg 213, and the support protrusion 125 is in a state where the support protrusion 125 is fitted in the hole of the rubber leg 213. And the rubber legs 213 are in close contact with each other so that play and play are not generated. Similarly, the support protrusion 126 of the lower case 12 is fitted into the hole of the rubber leg 223 of the recording mechanism unit 20. The outer diameter of the support protrusion 126 is substantially the same as the diameter of the hole of the rubber leg 223. When the support protrusion 126 is fitted in the hole of the rubber leg 223, the support protrusion 126 and the rubber leg 223 are in close contact with each other. There is no play or play.
As described above, the support protrusions 125 and 126 are fitted into the holes of the rubber legs 213 and 223, respectively, thereby restricting the position of the recording mechanism unit 20 in the horizontal direction.

As described above, the recording mechanism unit 20 is joined to the upper case 11 via the dampers of the right front damper 211, the right rear damper 212, the left front damper 221 and the left rear damper 222, and further includes two rollers 25, rubber It is joined to the lower case 12 via the legs 213 and 223. Since the dampers of the right front damper 211, the right rear damper 212, the left front damper 221 and the left rear damper 222 are respectively fitted to the damper receivers 111, 112, 113, 114 formed on the bottom surface of the upper case 11, recording is performed. The horizontal position of the mechanism unit 20 with respect to the upper case 11 is restricted.
Further, the two rollers 25 included in the recording mechanism unit 20 are respectively fitted to roller receivers 121 and 122 formed in the lower case 12, and the right roller restricting member 123 and the left roller are laterally connected to these rollers 25. The regulating member 124 contacts. The roller receivers 121 and 122 correspond to the receiving portion of the present invention, and the right roller restricting member 123 and the left roller restricting member 124 correspond to the position restricting member of the present invention. Thereby, the position of the roller 25 in the left-right direction is restricted. Further, the support protrusions 125 and 126 formed on the lower case 12 are fitted into the rubber legs 213 and 223 included in the recording mechanism unit 20, respectively. Thereby, the horizontal position of the recording mechanism unit 20 is restricted.

Here, a connection structure between the upper case 11 and the lower case 12 will be described. As shown in FIG. 2, a bracket 18 straddling the upper case 11 and the lower case 12 is disposed on the back side of the dot impact printer 10. The bracket 18 is disposed inside the upper case 11 and the lower case 12, and is screwed to the bottom surface of the lower case 12 and the back surface of the upper case 11. The screw on the bottom surface of the lower case 12 is concealed by the lower case 12. On the other hand, the screw on the back surface of the upper case 11 is exposed and can be easily attached and detached.
As shown in FIG. 3, a receiving groove 120 is formed in the upper part of the front side of the lower case 12. A claw 110 (FIG. 5) is formed on the front side of the upper case 11 at a position corresponding to the receiving groove 120. The nail | claw 110 and the receiving groove 120 become a shape which controls so that the upper case 11 and the lower case 12 may not be separated, but the upper case 11 and the lower case 12 are faced | matched and the upper case 11 faces the lower case 12 By pressing, the claw 110 is fitted into the receiving groove 120.
Therefore, when connecting the upper case 11 and the lower case 12, the upper case 11 and the lower case 12 are brought into contact with each other to press the upper case 11, and the claw 110 is fitted into the receiving groove 120. The upper case 11 and the bracket 18 may be fixed by tightening the screws on the back side. Further, the upper case 11 can be removed from the lower case 12 by the reverse procedure.

The assembly work of the dot impact printer 10 is as follows. 1. a process of placing the recording mechanism 20 on the lower case 12; 2. Covering the recording mechanism unit 20 with the upper case 11 and sandwiching the recording mechanism unit 20 between the upper case 11 and the lower case 12; The upper case 11 and the lower case 12 are connected in a state where the upper case 11 is pressed toward the lower case 12.
Of these, In the process of placing the recording mechanism unit 20 on the lower case 12, first, the roller 25 of the recording mechanism unit 20 is dropped onto the roller receivers 121 and 122 of the lower case 12, and then the recording mechanism unit 20 is rotated around the roller 25. The support protrusions 125 and 126 are inserted into the rubber legs 213 and 223 by being moved.
Since the recording mechanism unit 20 is mounted with a metal member, various motors, and the like and is relatively heavy, it can be said that it is difficult to carry the recording mechanism unit 20 to an accurate position with respect to the lower case 12. However, as described above, when the roller 25 is first dropped onto the roller receivers 121 and 122, the position of the roller 25 is regulated by the right roller regulating member 123 and the left roller regulating member 124. It can be easily adjusted to the correct position. If the recording mechanism unit 20 is rotated in this state and the rubber legs 213 and 223 are lowered from above the support protrusions 125 and 126, the support protrusions 125 and 126 are naturally inserted into the rubber legs 213 and 223, so The recording mechanism unit 20 can be easily mounted.
In addition, the above 3. In a process of connecting the upper case 11 and the lower case 12 in a state where the upper case 11 is pressed toward the lower case 12, by pressing the upper case 11, the right front damper 211 against the pressing force, A repulsive force is generated by the right rear damper 212, the left front damper 221, the left rear damper 222, and the rubber legs 213 and 223. By this repulsive force, the recording mechanism unit 20 is securely fixed inside the upper case 11 and the lower case 12. Therefore, the recording mechanism 20 can be reliably fixed inside the upper case 11 and the lower case 12 without being screwed to the upper case 11 and the lower case 12.

Further, the roller 25 included in the recording mechanism unit 20 is configured to be rotatable. When the upper case 11 is not mounted, the recording mechanism unit 20 is tilted about the roller 25 as shown in FIGS. It is possible to make it. When the recording mechanism unit 20 is tilted, the rear side of the recording mechanism unit 20 is lifted. Here, the roller 25 rotates while being fitted to the roller receivers 121 and 122 (FIG. 6) to become a fulcrum, and the rubber legs 213 and 223 disposed on the rear side of the recording mechanism unit 20 are moved upward.
In order to hold the recording mechanism 20 in a tilted state, a support bar 40 as a bar of the present invention is used. The support rod 40 is a rod-shaped member having a predetermined length, and the material thereof is not particularly limited as long as it has a strength capable of withstanding the load of the recording mechanism unit 20. As shown in FIG. 6, a support rod receiving hole 115 as a recess according to the present invention is formed on the side of the support protrusion 126 formed on the left side of the rear of the lower case 12. The support rod receiving hole 115 is a recess formed in the same size as or larger than the diameter of the support rod 40, and the support rod 40 can be inserted into the support rod receiving hole 115. When the recording mechanism 20 is tilted, one end of the support bar 40 is inserted into the support bar receiving hole 115 and the other end is inserted into the hole of the rubber leg 223. Is supported, and the recording mechanism 20 is held in a tilted state as shown in FIGS.

By tilting the recording mechanism unit 20 in this way, the assembly work of the dot impact printer 10 is further facilitated.
As shown in FIG. 6, a circuit board 41 is accommodated in the bottom of the lower case 12. The circuit board 41 is mounted with a control circuit for controlling the operation of each motor of the dot impact printer 10 and the recording head 30, and the circuit mounted on the circuit board 41 includes a motor mounted on the recording mechanism unit 20, Connected to the recording head 30 and the like. Therefore, in the process of assembling the dot impact printer 10, after the circuit board 41 is accommodated in the lower case 12 and fixed, wiring work for connecting the harness to the circuit on the circuit board 41 and the motor of the recording mechanism unit 20 is necessary. become. This wiring work needs to be performed after the circuit board 41 is fixed to the lower case 12. In addition, it is desirable that the circuit board 41 and the recording mechanism unit 20 be close to each other during wiring work due to the limitation on the length of the harness.

Therefore, after the circuit board 41 is fixed to the lower case 12, the recording mechanism unit 20 is mounted on the lower case 12, and the recording mechanism unit 20 is tilted and the support rod 40 is assembled. Be drunk. In a state where the recording mechanism unit 20 is tilted, the inside of the lower case 12 can be looked over from the rear side of the recording mechanism unit 20, and wiring work for the circuit on the circuit board 41 can be easily performed. In addition, since the circuit board 41 and the recording mechanism unit 20 are close to each other, wiring work can be performed without being affected by the length of the harness.
Then, after the wiring work is finished, the rear side of the recording mechanism unit 20 is lifted to largely tilt the recording mechanism unit 20, the support bar 40 is removed, and the rubber legs 213 and 223 of the recording mechanism unit 20 are supported by the lower case 12. When the protrusions 125 and 126 are fitted, the assembly of the recording mechanism unit 20 to the lower case 12 is completed. Furthermore, when the upper case 11 is put on the recording mechanism unit 20 and the upper case 11 and the lower case 12 are connected, the assembly of the dot impact printer 10 is completed.

  That is, in the assembly work of the dot impact printer 10 described above, the circuit board 41 and the bracket 18 are fixed to the bottom of the lower case 12 in advance. In the step of placing the recording mechanism unit 20 on the lower case 12, the recording mechanism unit 20 is tilted to connect each part of the recording mechanism unit 20 to the circuit board 41. Thereafter, the above 2. (2) covering the recording mechanism unit 20 with the upper case 11 and sandwiching the recording mechanism unit 20 between the upper case 11 and the lower case 12; What is necessary is just to perform the process of connecting the upper case 11 and the lower case 12 in the state which pressed the upper case 11 toward the lower case 12. FIG.

  As described above, according to the dot impact printer 10 of the embodiment of the present invention, the roller 25 and the rubber legs 213 and 223 are disposed on the right side frame 21 and the left side frame 22 of the recording mechanism unit 20, and the lower case The roller 25 is received by twelve roller receivers 121 and 122, and the position of the roller 25 is restricted by right roller restricting members 123 and 124. Further, the rubber legs 213 and 223 are inserted with support protrusions 125 and 126 of the lower case 12, and support rod receiving holes 115 are provided on the sides of the support protrusions 125 and 126. It can be rotated along the surfaces of the right side frame 21 and the left side frame 22 around 25. Therefore, the recording mechanism 20 can be rotated and tilted with the roller 25 fitted in the roller receivers 121 and 122. Further, the recording mechanism 20 can be held in a tilted state by spanning the support bar 40 between the holes of the rubber legs 213 and 223 and the support bar receiving hole 115. Thereby, it is possible to easily perform operations related to the assembly of the circuit board 41 disposed below the recording mechanism unit 20 and maintenance. Further, since the position of the roller 25 is regulated by the right roller regulating member 123 and the left roller regulating member 124, the position of the recording mechanism unit 20 is not displaced even if the recording mechanism unit 20 is tilted, and is stable. Excellent in properties. As described above, the dot impact printer 10 eliminates the inconvenience caused by storing the circuit board 41 below the recording mechanism unit 20 with a simple structure, is easy to assemble, has excellent workability, and can be downsized. It is.

  The embodiment described above shows one embodiment of the present invention, and it is needless to say that the embodiment can be arbitrarily modified and applied within the scope of the present invention. For example, in the above-described embodiment, the configuration in which continuous paper is used as the recording medium is illustrated, but it is of course possible to use cut paper. In the above embodiment, the recording mechanism 20 is supported by the rod-shaped support bar 40 when the recording mechanism 20 is tilted around the roller 25. However, the shape of the support bar 40 is arbitrary. The structure may be changed, and the support bar 40 may be further accommodated in the lower case 12 in a state where the recording mechanism unit 20 is not tilted. Other detailed configurations can be changed as appropriate without departing from the spirit of the present invention.

1 is an external perspective view of a dot impact printer according to an embodiment of the present invention. It is an external perspective view of a dot impact printer. It is a perspective view which shows the structure of a recording mechanism part. FIG. 2 is a cross-sectional view taken along line AA ′ in FIG. 1. It is a top view which shows the structure by the side of the bottom face of an upper case. It is a top view which shows the structure of the upper side of a lower case. It is a perspective view which shows the state which mounted and tilted the recording-mechanism part on the lower case. It is a rear view which shows the state which mounted and tilted the recording-mechanism part on the lower case.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Dot impact printer (recording apparatus) 11 ... Upper case, 12 ... Lower case, 18 ... Bracket, 20 ... Recording mechanism part, 21 ... Right side frame (side frame), 22 ... Left side frame (side frame), DESCRIPTION OF SYMBOLS 25 ... Roller, 30 ... Recording head, 40 ... Support bar (bar body), 41 ... Circuit board (control board), 110 ... Claw, 111, 112, 113, 114 ... Damper receiver, 115 ... Support bar receiving hole (recessed part) ), 120... Receiving groove, 121 and 122... Roller receiver (receiving portion), 123. Right roller restricting member (position restricting member), 124. Left roller restricting member (position restricting member), 125 and 126. , 211 ... right front damper, 212 ... right rear damper, 213 ... rubber leg (ring member), 221 ... left front damper, 222 ... left rear damper, 23 ... rubber feet (ring member).

Claims (3)

In a recording apparatus in which a recording mechanism unit including a recording head is housed in an exterior composed of an upper case and a lower case,
The recording mechanism section includes a pair of side frames that constitute both longitudinal ends thereof.
A roller that is rotatably supported at one end side of the side frame and supports the load of the recording mechanism unit at the lower end of each side frame, and the other end side of the side frame And a ring member facing the lower case is disposed,
The lower case includes a receiving portion that receives the roller, a position restricting member that restricts the position of the roller in the receiving portion, a protrusion that is inserted into the ring member, and a concave portion that is located on a side of the protrusion. Provided,
The recording mechanism section is rotatable along the surface of the side frame around the roller in a state where the roller is in contact with the receiving section;
A recording apparatus. The recording mechanism unit includes a plurality of operation units including the recording head,
The recording apparatus according to claim 1, wherein a control board for controlling an operation of the operation unit mounted on the recording mechanism unit is accommodated in a bottom portion of the lower case. A method of assembling a recording apparatus, in which a recording mechanism unit including a plurality of operation units including a recording head is housed in an exterior made up of an upper case and a lower case,
The recording mechanism section includes a pair of side frames that constitute both longitudinal ends thereof.
A roller that is rotatably supported at one end side of the side frame and supports the load of the recording mechanism unit at the lower end of each side frame, and the other end side of the side frame And a ring member facing the lower case is disposed,
The lower case includes a plurality of receiving portions that receive the rollers, a position restricting member that restricts the position of the rollers in the receiving portions, a protrusion that is inserted into the ring member, and a recessed portion that is located on a side of the protrusion. And
The recording mechanism portion is configured to be rotatable along the surface of the side frame around the roller in a state where the roller is in contact with the receiving portion.
Disposing a control board for controlling the operation of the operation unit mounted on the recording mechanism unit at the bottom of the lower case;
Contacting the roller of the recording mechanism with the receiving part of the lower case;
The control board and the recording medium are loaded in a state where a rod body is bridged between the hole of the ring member of the recording mechanism section and the concave portion of the lower case, and the load of the recording mechanism is supported by the rod body and the roller. A step of wiring with the mechanical unit;
Removing the rod, rotating the recording mechanism around the roller, and inserting the protrusion of the lower case into the ring member, and assembling the recording apparatus,
A method for assembling a recording apparatus.

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