JPH0726116Y2 - Simple printer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a simple printer in which input data is printed by a printer head at a desired position on a sheet of paper such as a table.

[Conventional technology]

A printer in which a casing is placed on a sheet of paper such as a desk and printing is performed on the sheet of paper by a print head provided on an arm protruding from the casing is disclosed.
No. 71 publication.

[Problems to be solved by the invention]

The printer has a printer head attached to one arm. Therefore, the support of the arm becomes unstable, and there is a problem in strength. The present invention aims to solve the above problems.

[Means for solving problems]

In order to achieve the above object, the present invention relates to a casing 2 having a bottom portion suitable for being placed on a table, a horizontal shaft portion 12c having a width substantially the same as the horizontal width of the casing 2, and a horizontal shaft portion 12c. And side portions 12a, 12b which are perpendicular to each other, and the side portions 12a, 12b are slidably supported on both sides of the casing 2 in association with a drive system, and a sliding member 13 is provided at an appropriate position on the lower surface. A frame 12 and a printer head 50 slidably attached to a horizontal shaft portion 12c of the frame 12 in association with a drive system are provided.

[Action]

In the above-mentioned configuration, the frame 12 has its both side portions 12a,
12b moves in the protruding direction along both sides of the casing 2, and moves the printer head 50 to a position right above the printing position in front of the casing 2. The printer head 50 moves along the horizontal axis portion 12c of the frame 12 and prints on the paper on the mounting surface based on the input data. When the frame 12 moves with respect to the casing 2, the lower surface of the frame 12 travels on the mounting surface via the sliding member 13.

〔Example〕

Hereinafter, the configuration of the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings.

Reference numeral 2 denotes a casing composed of a substrate 4 and a cover covering the upper portion of the substrate, and a scanner area 6 composed of a rectangular space opened vertically is formed in the center of the casing. Both ends of the Y-axis rail 8 are fixed to the side portions of the substrate 4 via brackets, and guide holes of the Y cursor 10 are slidably fitted in the Y-axis rail 8. One end of one side portion 12a of the U-shaped frame 12 is fixed to the Y cursor 10. The side portion 12b of the frame 12 is slidably supported by a guide rail 14 fixed to the other side portion of the substrate 4 in the direction with respect to the Y rail 8 via rollers 16 and 18. A scale 12 is provided on the upper surface of the frame 12 so that the print position and the printer head 50 can be easily seen.
Further, a sliding member 13 whose lower end surface is set to be flush with the lower surface of the casing 2 is fixedly mounted on the lower surface of the front of the frame 12 on which a is engraved. Reference numeral 20 denotes a frame drive motor fixed to the substrate 4, and an output shaft of the motor 20 is connected to a support shaft of a drum 22 rotatably supported on the rear portion of the substrate 4 via a gear mechanism.

Reference numeral 24 denotes a drum rotatably supported in front of a side portion of the substrate 4, and a flexible wire rope 26 is tensioned and stretched between the drum 24 and the drum 22. ing. One side of the pair of horizontal portions of the wire rope 26 is fixed to the Y cursor 10. The above structure constitutes a Y drive mechanism that drives the frame 12 in the front-rear direction along both sides of the casing 2.

Next, frame the X cursor 28 for sending the printer head.
The X drive mechanism that drives along the 12 horizontal axis portions 12c will be described.

The both ends of the 30 are Y-shaped to the frame 12 via brackets.
The X-axis rail is fixed at a right angle to the axis rail 8 and the guide hole of the X cursor 28 is slidably fitted therein. As shown in FIG. 16, a guide rail 32 is fixed to the frame 12 in parallel with the X-axis rail 30.
A guide roller 34, which is rotatably supported by a cursor 28, is movably arranged. The roller guide grooves of the guide roller 34 and the X guide rail 32 are provided on the X axis rail 30 of the X cursor 28.
The movement in the direction of rotation around is regulated. Reference numeral 36 denotes a head drive motor fixed to the substrate 4, and its output shaft is connected to a spindle of a drum 38 rotatably supported by the substrate 4 via a gear mechanism. As shown in FIG. 10, the wire rope 40 wound around the drum 38 has a pulley 4
2, the upper pulley 44 of the double pulleys, the pulley 46, and the lower pulley 48 of the double pulleys are wound in this order, and the wire rope 40 is fixed to the X cursor 28. The pulley 42 is rotatably supported by the Y cursor 10, the pulleys 44 and 48 are located on the left end side of the horizontal shaft portion 12c of the frame 12, and are rotatably supported on the same axis. It is located on the right end side of the horizontal shaft portion 12c of the frame 12 and is rotatably supported.

Next, a printer head elevating mechanism for vertically elevating the printer head 50 with respect to the screen will be described.

In FIGS. 8 and 16, reference numeral 52 denotes a U-shaped bracket fixed to the side surface of the X cursor 28, to which a guide shaft 54 is fixed vertically to the extension plane of the bottom surface of the casing 2. The guide shaft 54 has slidable frames 56 and holes for lifting and lowering bodies 58 slidably fitted therein so as not to rotate around the guide shaft 54. A thermal printer head 50 is fixed to the lifting body 58. A coil spring 60 fitted into the guide shaft 54 is disposed between the lower surface of the elevating frame 56 and the upper surface of the lower portion of the bracket 52, and between the upper surface of the elevating body 58 and the upper lower surface of the elevating frame 56. A coil spring 62 fitted and inserted in the guide shaft 54 is arranged in compression. Reference numeral 64 is a lifting guide bar having an overall U shape, and both sides of the guide bar are the X-axis rails.
It is rotatably fitted to both ends of 30. 66 is the X cursor 28
Is an L-shaped piece rotatably supported on one side, one of which faces the guide bar 64 and the other of which faces the upper surface of a protrusion 68 projecting from the elevating frame 56. Reference numeral 70 denotes a printer head lifting solenoid fixed to the frame 12, and a pin 74 fixed to an output shaft 72 of the solenoid is transparently provided on a protrusion of a rotary shaft 76 rotatably supported on the frame 12. It is slidably inserted in the long hole. A pushing piece 76a formed integrally with the rotating shaft 76 at a right angle is opposed to the elevating guide bar 64.

In FIGS. 5 and 6, reference numeral 78 denotes an ink ribbon cassette, to which a supply reel shaft 82 that supports a ribbon supply reel 80 is rotatably provided. The ink ribbon cassette 78 is detachably attached to the X cursor 28, and an oscillating plate 84 is rotatably supported on an internal substrate of the cassette 78. The oscillating plate 84 is biased counterclockwise in FIG. 5 by the coil spring 86, and the protrusion 84a formed on the oscillating plate 84 makes elastic contact with the lower surface of the protrusion 68. 88,90
Are gears that are rotatably supported by the rocking plate 84 while meshing with each other, and one gear 88 is a ribbon winding shaft 92.
It meshes with a gear 94 that is fixed to a shaft that interlocks with. In FIG. 4, reference numeral 96 denotes a rack gear fixed to the frame 12 in parallel with the X rail 30, and is arranged immediately below the gear 90 with an appropriate interval.

Next, a scanner feeding mechanism that drives the scanner 98 in the X-axis direction will be described.

In FIG. 4, reference numeral 100 denotes a scanner guide shaft fixedly mounted on the substrate 4 via a bracket, and the Y-axis rail 8 is provided.
It is arranged at a right angle to. A tubular cursor body 102 is fixedly provided on one end side of the line scanner 98, and the cursor body 102 is slidably fitted on the scanner guide shaft 100. A plurality of rollers 104 are rotatably supported by a bracket on the other end side of the scanner 98.
The surface of the is movably abutted on the wall surface of the groove of the guide rail 106 fixedly provided in parallel with the scanner guide shaft 100 on the substrate 4. Reference numerals 108 and 110 denote drums positioned near both ends of the scanner guide shaft 100 and rotatably supported by the substrate 4. One drum 110 is an output of a scanner feed motor 112 fixedly mounted on the substrate 4. It is connected to the shaft through a gear mechanism. The drum 108,11
An endless wire rope 114 is stretched between 0, and the horizontal portion of the rope 114 is fixed to the cursor body 102.
The lower surface of the scanner 98 within the scanner area 6 is set substantially flush with the bottom surface of the substrate 4.

The casing 2 has a built-in data processing circuit that processes scanner data and keyboard print input data as input data to the printer head 50, and also has a print input keyboard having a connection terminal with a host computer and a display unit. A connection terminal is provided. A controller for controlling the motors 36, 20, 112 solenoids 70, the printer head 50, and the scanner 98 is built in the casing 2, and a main operation panel 116 for operating the controller is provided on the upper surface of the casing 2. ing.

Next, the operation of this embodiment will be described.

First, the case where character data input from the main operation panel 116 or the keyboard is printed on a sheet will be described.

When the power of the machine is turned on, the motor 20 is driven and the frame 12 moves upward along the Y-axis rail 8 and the guide rail 14 in FIG. 4, that is, in front of the casing 2 to a predetermined position. Stop. Also, the X cursor 28 is the X axis rail 30.
Along the X guide rail 32, it moves leftward to a predetermined position and stops. The operator moves the casing 2 on a sheet of paper such as a desk so that the printer head is aligned with the print start position on the sheet of paper.

Next, or in advance, when the print data is input from the print input keyboard or the host computer to the data processing circuit inside the casing 2 and the print start key of the main operation panel 116 is turned on, the solenoid 70 is energized. The output shaft 72 is driven in the arrow direction in FIG. By this drive, the rotating shaft 76 is rotated, and the protrusion 76a rotates the head elevating guide bar 64 about the X-axis rail 30. As a result, the L-shaped piece 66 rotates counterclockwise about the rotation center axis in FIG. 8, the protrusion 68 is pushed down, and the elevating frame 56 resists the elastic force of the coil spring 60. Then, the printer head 50 makes elastic contact with the screen through the ink ribbon against the elastic force of the coil spring 62. Due to the lowering of the protrusion 68, the support plate 84 rotates clockwise about the center of rotation thereof in FIG. 5 against the tensile force of the coil spring 86, and the gear 90 lowers. The gear 90 elastically contacts the rack gear 96.

Next, the printer head 50 and the motor 36 are driven so that the printer head 50 prints on the paper, and the X mark in FIG.
It is sent to the right along the axis rail 30. Along with the movement of the printer head 50, the gear 90 rotates, and the winding shaft 92 that interlocks with the gear 90 rotates in the ink ribbon winding direction, so that a new ink ribbon is supplied to the print surface of the printer head 50. Supplied from 80. When printing of the first line is completed, the solenoid 70 turns off and the printer head
As the gear 50 rises, the gear 90 separates from the rack gear 96, and the printer head 50 is driven by the motor 36 to return to the predetermined left end of the horizontal shaft portion 12c of the frame 12.
Next, the motor 20 is driven to move the frame 12 downward along the Y-axis rail 8 by a predetermined amount in FIG. 4 to align the print position of the printer head 50 with the line feed position. The next line is printed according to the above procedure. In this manner, the above operation is repeated in the drawing area 122 until printing of a predetermined number of lines is completed. The frame 12 is placed on the table surface via the sliding member 13, and is moved in the protruding / retracting direction along the table surface via the sliding member 13.

Next, the operation of printing out the image data read by the scanner 98 will be described.

When the scanner area 6 of the casing 2 is aligned with the portion of the drawing to be copied and the scan key of the main operation panel 116 is pressed, the motor 112 is driven and the scanner 98 moves the inside of the scanner area 6 to the left in FIG. From the right to the right along the guide shaft 100 and the guide rail 106, the scanner 98 reads image data such as a drawing directly below the scanner area 98 and stores it in a memory. The read image data may be stored in the host computer. The read image data or the image data stored in the host computer can be printed on a desired screen by the printer head 50 by pressing the print key on the main operation panel 116. Further, while scanning with the scanner 98, this scan data can be printed out by the printer head 50. Further, the image data read by the scanner 98 can be edited on the host computer side, and the edited data can be printed out on paper by the printer head 50. Further, while the scanner 98 is being driven, print data other than the scanner data can be printed out on the paper by the printer head 50.
When the frame 12 is retracted to the most retracted position with the printer head 50 raised, as shown in FIG.
The side surface of the horizontal axis portion 12c contacts the upper edge portion of the substrate 14. In this state, the printer head 50 is located on the head cover portion 4a of the substrate 4, and the printing surface of the printer head 50 is protected.

〔effect〕

According to the present invention, since both sides of the frame are supported by the casing as described above, the frame can be firmly and stably supported, and since the sliding member is provided on the lower surface of the frame, the frame can be smoothly moved. It can be carried out. Also, since the frame does not come into direct contact with the paper surface,
There is an effect that the printed surface is not stained.

[Brief description of drawings]

1 is an external view, FIG. 2 is a side view, FIG. 3 is an external view, and FIG. 4 is a plan view with a casing cover removed.
FIG. 5 is a sectional view taken along line BB, FIG. 6 is a rear view, and FIG. 7 is A.
-A sectional view taken along the line A, FIG. 8 is a right side view, FIG. 9 is a plan view with the frame protruding, FIG. 10 is the same, rear view, FIG. 11 is the same, left side view, FIG. Is a right side view of the same, FIG. 13 is an explanatory view of the X drive mechanism, FIG. 14 is an explanatory view of the Y drive mechanism,
FIG. 15 is an explanatory view of the scanner feeding mechanism, and FIG. 16 is an external view. 2 ... Casing, 4 ... Board, 6 ... Scanner area, 8 ... Y-axis rail, 10 ... Y cursor, 12 ... Frame, 13 ... Sliding member, 14 ... Guide rail, 16, 18
…… Roller, 20 …… Motor, 22,24 …… Drum, 26 …… Wire rope, 28 …… X cursor, 30 …… X axis rail, 32
...... X guide rail, 34 …… guide roller, 36 …… motor, 38 …… drum, 40 …… wire rope, 42,44,46,48
...... Pulley, 50 …… Printer head, 52 …… Bracket, 54 …… Guide shaft, 56 …… Elevating frame, 58 …… Elevating body, 6
0,62 …… Coil spring, 64 …… Up and down guide bar, 66 …… L-shaped piece, 68 …… Projection, 70 …… Solenoid, 72 …… Output shaft, 74
...... Pin, 76 …… Rotary shaft, 78 …… Cassette, 80 …… Ribbon supply reel, 82 …… Supply reel shaft, 84 …… Swing plate, 86
...... Coil springs, 88, 90 ...... Gears, 92 ...... Winding shafts, 9
4 ... Gear, 96 ... Rack gear, 98 ... Scanner, 100 ...
… Scanner guide axis, 102… Cursor body, 104… Roller, 106… Guide rail, 108, 110… Drum, 112…
… Motor, 114… Rope, 116… Operation panel

Claims (1)

[Scope of utility model registration request] 1. A casing 2 having a bottom portion suitable for being placed on a table, a horizontal shaft portion 12c having a length substantially the same as the horizontal width of the casing 2, and a side portion 12a perpendicular to the horizontal shaft portion 12c. , 12b
A frame 12 having the side portions 12a and 12b slidably supported on both sides of the casing 2 in cooperation with a drive system and having a sliding member 13 provided at an appropriate position on the lower surface; A simple printer including a printer head 50 slidably attached to a horizontal axis portion 12c in association with a drive system.