JPS6283958A - Recorder - Google Patents

Abstract

PURPOSE:To enable a holder to optionally set its space so as to correctly position rolled paper, by constituting the holder such that the holder, holding both ends of a rolled sheet, can be moved in a direction relatively approaching and separating. CONSTITUTION:A recording paper holder 16 is formed into construction such that holding members 53, 54, holding both ends of recording paper 17, are connected in a parallelly opposed condition through two connecting levers 55, 56. The connecting levers 55, 56, being mounted by a pin 201 in the center, are connected overlapping in an X shape, and the pin 201 is fixed to a bottom plate 61 of an electronic desk calculator. Accordingly, if either one of the holding member 53 or 54 is moved in a direction approaching or separating, the holding members 53, 54 parallelly move by every equal distance with respect to a center line ML by action of the connecting levers 55, 56. A parallel movement such as in the above enables a space between protrusions 57, 58 to be optionally set, and the recording paper, even if it is in different width, can be correctly held to its mounting position.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording device, and more specifically, the present invention relates to a recording device, and more specifically, a recording device that uses a rolled sheet as a recording medium, a holder that holds the rolled sheet, and a holder that transports the sheet to a recording section. The present invention relates to a recording device having a guide member that regulates a route.

[Prior Art] Some recording devices of this type use rolled sheets of multiple widths as recording media. For example, in a recording device used for an electronic desktop calculator, roll paper with paper widths of 38 mm and 57 mm is used as the recording paper. There are four types that use a holder, in which case a holder for holding a roll of recording paper is attached.

By the way, in a recording apparatus, when feeding a recording paper to a recording section, it is necessary to adjust the widthwise position of the recording paper to a predetermined position on the recording paper conveyance path before the recording section according to the recording position.

To perform this positioning, in the roll holder of a recording device that uses roll paper of multiple widths as described above, the roll paper is placed at a predetermined position in the width direction corresponding to the recording position for each width of the roll paper. The structure is designed to hold.

Further, the above-mentioned guide member also needs to provide predetermined guidance for each width of the roll paper, and for this reason, conventionally, different guide members have been provided for each width of the roll paper.

[Problems to be Solved by the Invention] However, the conventional configuration of the holder and guide member of the recording device described above is configured on the premise that roll paper of a predetermined width is used even if there are multiple types, and roll paper of any width can be used. It was not possible to hold the paper at a predetermined position in the width direction depending on the recording position and guide it in a predetermined direction. Further, if different guide members are provided for each width of the roll paper, the structure becomes complicated, the number of items increases, and the manufacturing cost increases.

[Means for Solving the Problems] In order to solve the problems mentioned above, the present invention includes a holder that holds a rolled sheet, a guide member that regulates the conveyance path of the sheet to the recording section. In the recording device, the holder is constituted by a plurality of holding members that hold both ends of the rolled sheet and are movable in directions of relatively approaching and separating, and the guide member can be interlocked with the holding members. It was established in

[Function] If such a configuration is adopted, the spacing between the plurality of holding members can be set arbitrarily, so that a rolled sheet of any width can be held. In this case, if the relative movement of the holding members is specified, the rolled sheet can be held at a predetermined position in the width direction regardless of the width.For example, two holding members are symmetrical with respect to the center line between them. If the roll sheet is moved in parallel, the center position of the rolled sheet in the width direction will always be on the center line, regardless of the width. Furthermore, by fixing one of the holding members and moving only the other in parallel, the end of the rolled sheet on the holding member side can be positioned at a predetermined position with respect to the fixed holding member.

Furthermore, since the guide member is displaced in conjunction with the holding member, it is possible to accommodate any width of the rolled sheet, and the conveyance path of the rolled sheet recording medium can be regulated in a predetermined manner according to the positional relationship of the holding member.

[Example] Hereinafter, the present invention will be described in detail according to an example shown in the drawings.

In the examples shown below, the recording device is an electronic desktop calculator (
Although a printing device used in a calculator (hereinafter referred to as a calculator) will be explained as an example, the present invention is not limited to this embodiment, but can be applied to a wide variety of recording devices such as computers, word processors, and electronic typewriters.

FIG. 1 shows the external appearance of a calculator equipped with the recording device of this embodiment. In the same figure, numerals 10 and 11 are the upper case and lower case of the calculator, respectively, and the upper case lO1
Various mechanical parts of the calculator are built into the lower case 11.

A keyboard 12 is arranged on the front side of the upper case 10, and data can be input via this keyboard. Data input from the keyboard 12 is processed by a central processing unit (not shown), and the results are displayed on the display unit 14. Also, on the upper end side of the upper case, there is a paper cutter 15 molded from a transparent material such as acrylic resin.
This paper cutter 15 is fixed to a printer lid 18 which is removably attached to the upper case 10, and is used to cut the roll-shaped recording paper 17 held in the recording paper holder 16, i.e. , the recording paper 17 held in the holder 16 is unwound by the operator, and after a predetermined recording is performed by the device consisting of the back insertion port 19, it is ejected from the recording paper ejection port 20 and cut by the paper cutter 15. be done.

The upper end 25 of the case 10 is rotatably supported on a shaft and can be opened, as will be described later. By operating a lock lever 26, the upper end 25 can be opened or locked.

2 and 3 illustrate the internal structure when the upper end portion 25 is opened. In FIG. 2, 31 is a printer board, and various parts are fixed onto this board 31. The motor 32 is a drive motor, and its rotation is transmitted to the drive pulley 34 via a gear train 32a. A type belt 36 is attached between the driving pulley 34 and the driven pulley 35.

As shown in FIG. 3, printed characters such as numbers and symbols are integrally formed on the outer peripheral surface of the type belt 36. A carriage shaft 38 is suspended between the driving pulley 34 and the driven pulley 35, and the carriage 3 is moved along the carriage shaft 38.
7 is attached so as to be able to slide back and forth. The carriage 37 moves forward according to the printing, and moves backward by a coil spring 39 for return.

A hammer (not shown) is built into the carriage 37, and can be activated by energizing the solenoid 33.

That is, the type belt 36 is rotated by a drive pulley 34 and a driven pulley 35 which are rotated by a motor 32, and when the desired type to be recorded reaches a position corresponding to a hammer built in a carriage 37, the solenoid 33 is energized. The type belt 36 is temporarily stopped and then pressed with a hammer to record on the recording paper 17 loaded between the platen 45 and the type belt 36.

A carry operation is performed in synchronization with the completion of such a recording operation, and the carriage 37 moves in the direction of the upper digits (towards the right in Fig. 2).
After repeating 0 or more operations for the desired number of digits, the type belt 36 is carried up by one digit and the rotation of the type belt 36 is restarted. The paper feed operation is performed in synchronization with the carriage return. Note that the reference numeral 34' indicates an ink roller which is attached to the type belt 36 and supplies ink.

Paper feeding is performed by sandwiching the recording paper 17 between a pinch roller 40 and a feed roller 46, and rotating the feed roller 46. The feed roller 46 is rotatably attached to a shaft 47 horizontally suspended on the substrate 31, while the pinch roller 40 is rotatably attached to a pinch roller shaft 41 attached to the platen 45. Pinch roller 40. Pinch roller shaft 41. In this embodiment, the platen 45 and the upper guide 55 formed continuously with the platen are integrated into a platen unit (U). The platen unit (U) has at least a platen and an upper guide 55. Pinch roller 40. It is constructed by combining one or more of the pinch roller shafts 41. The platen unit can be rotated about the axis 46 as shown by the arrow in FIG. This rotation is caused by a pin 48 attached to the back side of the upper end 25 or by the platen 4.
This is done by slidably fitting grooves 49 formed in 5. That is, when the lock lever 26 and the engaging portion 25a of the upper end portion 25 are disengaged and the upper end portion 25 is opened with the help of the biasing force of the torsion coil spring 50 attached to the shaft 46', the platen 45 is moved as shown in FIG. , by rotating clockwise as shown in FIG. 3, the feed roller 46, pinch roller 40, and platen 45 can be separated to facilitate paper insertion. Further, a protrusion 51 is provided on the inside of the substrate 31 into which the platen is inserted, and when the recording paper 17 is installed, the recording paper 17 can be inserted between the lower side of the protrusion 51 and the lower guide 52. It is possible to temporarily hold the recording paper and load the recording paper securely and stably.

By the way, in this embodiment, recording paper 17 having an arbitrary width within a certain range is used and the center line of the recording paper 17 in the width direction is always aligned with the center of the printing digit position, that is, the center of the recording position. Make it.

For this reason, the recording paper holder 16 in FIG. 1 has the overall structure shown in FIGS. 4 and 5. As shown in both figures, the recording paper holder 16 holds the roll of recording paper 17. Holding members 53 and 54 that hold each of both ends are
The books are connected in parallel to each other via connecting levers 55 and 56.

The holding members 53 and 54 are each formed from a single plate, and the right side portion in the figure is the holding portion 53a.

54a, and protrusions 57 and 58 are provided on the inner surface of the leading end thereof to fit into both ends of the hole 17a in the core of the roll of recording paper 17, respectively.

Also, the left side portion in the figure is the first connecting portion 53b.

54b, and four elongated holes 100 are formed along the longitudinal direction at corresponding positions in the tip and middle portions of each.

A connecting lever 5 is connected to each of the elongated holes 100.
5.4 pins 2 implanted at each end of 56
00 are slidably fitted to connect the connecting portions 53b and 54b.

The connecting levers 55, 56 are rotatably supported by pins 201 at their respective centers, and are connected in an X-shape overlapping one above the other. The pin 201 is fixed to the bottom plate 61 of the calculator.

Also, paper guides 59.6 are provided on the outside of the base end portions of the connecting portions 53b and 54b to regulate the conveyance path of the recording paper 17 to the recording section.
0 stands up and is formed integrally with the connecting part.

Further, in the holding members 53 and 54, holding portions 53a and 54
A and the first connecting portions 53b and 54b are connected to each other in the central part thereof, and a second connecting portion 53c extends in the direction of each other.
, 54c are formed.

One connecting portion 54c is stepped at its base end,
It is overlapped on the other connecting portion 53c. A long hole 101 is formed in the connecting portion 54c along its longitudinal direction, and two pins 202 are implanted in the connecting portion 53c through the long hole 101 so that the connecting portions 53c and 54c slide against each other. Connected for free movement. and connecting portions 53c, 5
4c is slidably fitted between guides 62 and 63 protruding from the bottom plate 61. By this fitting and fixing with the pin 201, the entire recording paper holder 16 is attached to the position shown on the bottom plate 61. In this case, the configuration is such that the position of the center line ML of the recording paper holder 16, which is indicated by a chain line in FIG. 4 and passes through the pin 201, corresponds to the center position of recording described above.

According to the structure of the recording paper holder 16 as described above, when one of the holding members 53, 54 is pressed in the vertical direction in FIG. The connecting levers 55 and 56 rotate in opposite directions about the pin 201 through the pin Zoo and the elongated hole 100, and the connecting parts 53c and 54c slide through the pin 202 and the elongated hole 101. As a result, the holding members 53 and 54 are moved in parallel in opposite directions upward and downward in the figure by equal distances with respect to the center line ML. That is, they approach or separate at equal distances symmetrically with respect to the center line ML. Note that the illustrated state is for the holding members 53 and 54.
This is the state where the two are separated as much as possible.

By such parallel movement, the interval between the protrusions 57 and 58 can be arbitrarily set within a certain range, and a roll of recording paper 17 having an arbitrary width within the same range can be held. And in this case, the center line M
L can hold the roll without moving, with its center aligned with the recording center position, regardless of its width.

In addition, in this case, the paper guide 59.60 is attached to the holding member 53.5.
4, the recording paper can be guided with its center aligned with the recording center position regardless of its width. Moreover, the paper guides 59 and 60 can guide the recording paper 17 of different widths, and since the paper guides 59 and 60 are integrally formed with the holding members 53 and 54, the number of parts can be significantly reduced compared to the conventional method. can.

Note that, unlike the case of this embodiment, when aligning one end of the recording paper at a predetermined position with the recording reference position instead of the center in the width direction, the pin 201 is not fixed and the holding member 53 is
．． By fixing one of the holding members 54 and moving the other in parallel, the end of the recording paper on the holding member side can be positioned at a predetermined position based on the position of the fixed holding member.

Further, the mechanism for parallel movement of the holding members 53 and 54 is not limited to the one described above, and other mechanisms may be used.Furthermore, the number of holding members may be two or more, and in the embodiment, the paper guide 59. 60 were integrally provided with the holding members 53 and 54,
In short, it is sufficient if it is provided so as to be interlocked with the holding member.

In each embodiment, the rolled sheet is not limited to recording paper, but includes recordable recording media such as plastic thin plates.

[Effects] As is clear from the above description, according to the recording device of the present invention, each of the ends of the rolled sheet of the recording medium is held and is movable in the direction of approaching and moving away from each other. The holder for the rolled sheet is constituted by a plurality of holding members, and each of the holding members is provided with an interlocking guide member for regulating the conveying path of the sheet, so that a rolled sheet of any width can be held, The transport path of the sheet can be guided, and in this case, the above-described relative movement allows the rolled sheet to be held at a fixed position in the width direction regardless of its width, and the sheet can be guided in a predetermined position.

Additionally, the number of parts can be significantly reduced, leading to lower manufacturing costs.

[Brief explanation of drawings]

The figures are for explaining one embodiment of the present invention, and FIG. 1 is a perspective view of a calculator equipped with a recording device of this embodiment, FIG. 2 is a perspective view showing the internal structure of the recording device, and FIG. FIGS. 4 and 5 are a cross-sectional view showing the internal structure, and a plan view and a side view showing the structure of the recording paper holder in FIG. 1. 16... Recording paper holder 17... Recording paper 53.54
...Holding member 55.56...Connection lever 57.58...Protrusion 59.60...Paper guide 6
1...Bottom plate 62.63...Guide 100
．． 101...Hole 200-202...Pin), -1--ji

Claims (1)

[Claims] In a recording device having a holder that holds a rolled sheet and a guide member that regulates a conveyance path of the sheet to a recording unit, a direction in which the rolled sheet is held at both ends and relatively approached and separated. A recording device characterized in that the holder is constructed from a plurality of holding members movable to each other, and the guide member is interlockably provided to the holding members.