JPS6317061A - Printer - Google Patents

Abstract

PURPOSE:To make the arrangement position of keys low without reduction in mechanical strength, thereby enabling accessories such as type wheel to be stored in a frame by constituting the title device in such a way that a keyboard is fitted in freely attachable/detachable fashion in the periphery of an opening of an upwardly opening recessed part formed on a frame, and the recessed part is closed in such a fitted state. CONSTITUTION:An upwardly opening recessed part 14 is provided on the frame 1 of a main body, and various accessories of typewriter are stored in the recessed part. Each connector of a keyboard 16 is fitted to the recessed part for fitting 14a of each recessed part 14 under such a condition that each slide pinch 17 is arranged at a position shown by a solid line in figure 3. Then a projecting strip 16g of the keyboard 16 is fitted to the periphery of the opening of the recessed part 14. Consequently, the keyboard 16 is electrically connected to a printing mechanism, and at the same time, it is positioned on the recessed part 14. Next, if each slide pinch 17 is moved from the solid line position to a two-dot chain line in figure 3, each hook piece 18 is fitted to each hole 16d through each recessed part for fitting 16c, and the keyboard 16 is linked to the frame 1 of a main body mechanically.

Description

DETAILED DESCRIPTION OF THE INVENTION Object of the Invention (Field of Industrial Application) This invention relates to a printing device with a detachable keyboard section.

(Prior Art) Conventionally, for example, there has been a keyboard of a button-pull type equipped with a golf ball-shaped print head, which is provided with a mechanical motion transmission mechanism inside the keyboard that is activated based on the depressing operation of a key. In the writer, operations such as selecting characters on the print head are performed via the transmission mechanism.

Furthermore, an electronic typewriter has been proposed in which electrical signals are generated in response to pressing down of various keys on a keyboard, and a printing mechanism is operated based on the signals.

(Problem to be Solved by the Invention) However, in the former typewriter, a mechanical motion transmission mechanism is provided inside the keyboard, so the thickness of the keyboard becomes large and the arrangement of each key on the top surface becomes difficult. They tend to be located high, which makes it difficult to operate the keys in some cases.

On the other hand, in the latter typewriter, the thickness of the keyboard can be reduced relative to the printing mechanism section in which the print head and the like are arranged, and the positions of the various keys can be lowered. However, since the thickness of the printing mechanism section and the keyboard are different, a step is formed at the connecting portion between the two, which may reduce the mechanical strength.

Also, since none of the typewriters provide space for storing replacement print heads with different typefaces, unused printing ribbons, etc. that come with the typewriter, it is best to store these accessories in a separate location. It was inconvenient.

This invention was made in view of the above-mentioned circumstances, and it is possible to lower the arrangement position of the keys without reducing mechanical strength, thereby making the keys easier to operate, and to attach accessories such as unused printing ribbons. The purpose is to provide a printing device that can secure a storage space of .

Structure of the Invention (Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention has a keyboard section having a plurality of character keys, function keys, etc., and operates based on input data from the keyboard. and a recessed part formed in a frame on one side of the printing mechanism part and opening upward, the keyboard part being removably attached to the opening periphery of the recessed part, and the recessed part being in the attached state. It is configured to be closed.

(Function) Therefore, when the keyboard section is removed from the frame, character keys, function keys, etc. are arranged low.

Furthermore, after accessories such as a printing ribbon are stored in the recess of the frame, the keyboard section can be attached to the periphery of the opening of the recess, so that the accessories can be stored in the recess.

(Example) Hereinafter, an example in which the present invention is embodied in a typewriter will be described in detail based on FIGS. 1 to 4.

As shown in FIG. F, a main body frame 1 of a typewriter is formed in the shape of a box with a bottom, and the rear side of the main body frame 1 is covered with a cover 1a.

A platen 2 is rotatably supported below the cover 13, and in front of the platen 2 is disposed a carriage (path shown) that is movable in the left-right direction along the platen 2. A type wheel 5 is mounted on the motor shaft on the carriage.
A pulse motor 6 (shown in FIG. 4) for selecting type characters is attached thereto, and a printing hammer 7 for hitting each type element 5a of the type wheel 5 is attached. A cassette holder (path shown) swingably disposed on the carriage supports a ribbon cassette 3 that stores a printing ribbon 3a and supports a part of the printing ribbon 3a in an exposed state, and also supports a correction ribbon 4a. A supply spool and a take-up spool 4 are supported. Note that the supporting state of the supply spool is not illustrated. As shown by the solid line in FIG. 4, the printing ribbon 3a is usually arranged at a printing position located between the platen 2 and the type element 5a of the type wheel 5, and the supply spool and take-up ribbon A correction ribbon 4a between the four is arranged in a rest position below it. Also, as the cassette holder swings, the printing ribbon 3a moves into the printing element 5 as shown by the two-dot chain line in the figure.
In a resting position above point a, a correction ribbon 4a is placed in place of the printing ribbon 3a in a respective use position between the platen 2 and the type element 5a. When the printing element 5a is struck by the printing hammer 7 with the printing ribbon 3a placed at the printing position, the platen 2
Printing is performed on the upper printing paper P. Further, the printing ribbon 3a is transported by a predetermined amount by a feed roller (not shown) in the ribbon cassette 3 for each printing operation, and is wound onto a take-up spool 4. Further, by moving the correction ribbon 4a to the use position, a correction printing operation can be performed. In addition, the platen 2, the type wheel 5,
A printing mechanism section includes a pulse motor 6, a printing hammer 7, and the like.

The cover 13 corresponding to the printing mechanism section includes the cover 1
An opening 9 is provided which is opened and closed by a cover plate 8 rotatably attached to a, and when the opening 9 is open, printing paper P is placed on the platen 2 along the upper surface of the cover plate 8. At the same time, it is held by a cover plate 8. Further, a connecting portion 11 for removably connecting a power cord 10 is provided on the rear right side surface of the main body frame 1, and a recess 14 that opens upward is provided in the main body frame 1 on the front side of the printing mechanism section. It is provided. and,
Inside the recess 14 are various accessories of the type-like, namely a replacement ribbon cassette 3, a supply spool 13 wound with a replacement correction ribbon, the power cord 10. It is possible to store a replacement type wheel 5 with a different typeface, a keyboard cable 20, which will be described later, and the like.

On the other hand, a keyboard section 16 is provided with a plurality of character keys 15a, function keys 15b such as a tab key, a correction key, etc. on the surface 16a.
is provided separately from the main body frame 1 and is removably attached to the opening periphery of the recess 14 . That is, a pair of left and right engaging recesses 14a are formed in the rear inner wall of the recess 14, and a pair of left and right slide knobs 17 are slidably attached to the front wall of the recess 14, and each slide knob 17 The main body frame 1 is inserted through the front wall of the recess 14.
A locking piece 18 is provided that projects inward.

A pair of connectors (not shown) protruding from the rear edge of the keyboard portion 16 are removable from the engagement recess 14a. Further, a protrusion 16g that can be engaged with the opening circumference of the recess 14 is formed on the outer peripheral edge of the keyboard portion 16, and a protrusion 16g is provided on the front side of the keyboard portion 16 so as to be positioned above and below the protrusion 16g. Two sets of opposing engagement recesses 16a
, 16C are formed, and holes 16f, 16d are formed in the inner walls of each engaging recess 15e, 16c.

Further, a keyboard cable 20 is removably connected at one end to the keyboard portion 16, and the other end of the keyboard cable 20 is removably connected to the left engagement recess 14a of the rear inner wall of the recess 14. And, it is designed to be electrically connected. Further, as shown in FIG. 2, a leg piece 21 whose rotation angle position can be changed is mounted in a recess formed on the back surface 16b of the keyboard portion 16.

Therefore, in this embodiment, each key 15a.

15b upward, and each slide knob 17
is placed in the position shown by the solid line in FIG. engage. If you do this,
The engagement between the left connector and the left engagement recess 14a electrically connects the keyboard section 16 to the printing mechanism section, and positions the keyboard section 16 on the recess 14.Next, each slide When the knob 17 is moved from the position shown by the solid line in FIG.
d, and the keyboard portion 16 is mechanically connected to the main body frame 1.

In this state, various keys 15a, 1 on the keyboard section 16
5b, a predetermined signal is input to the printing mechanism, and the printing mechanism is operated based on the input data to print on the printing paper P.

In addition, with the keyboard section 16 mounted on the recess 14,
When each slide knob 17 is moved from the two-dot chain line position to the solid line position in FIG. 3, the engagement between each latch piece 18 and the guard hole 16d is released. Next, by lifting the keyboard section 16 and releasing the engagement between each connector and the engagement recess 14a,
The keyboard portion 16 can be easily removed from the main body frame 1. In this state, since the recess 14 is open, the item stored in the recess 14 can be easily taken out. Also, one end of the keyboard cable 20 is inserted into the recess 1.
Insert the other end into the left engaging recess 14a of the keyboard part 16.
keyboard part 1 by connecting it to the left connector of
6 and the printing mechanism can be electrically connected to enable manual key operation as in the previous case. At this time, the character keys 15a and the function keys 15b can be arranged at low positions, so that each key can be pressed easily. Furthermore, the keyboard section 16 is only allowed to move within the length range of the keyboard cable 20, and the inclination angle can be changed by adjusting the rotation of the leg pieces 21, so the keyboard section 16 can be operated freely. The typewriter can be used in response to changes in the mounting conditions of the typewriter on a tabletop or the like. Further, as described above, in this typewriter, the character keys 15a and the function keys 15b can be pressed by selecting whether the keyboard portion 16 is attached to the main body frame 1 or removed from the main body frame 1.

Further, with the keys 15a and 15b disposed downwardly toward the recess 14, the connector of the keyboard portion 16 is engaged with the engagement recess 14a, and the protrusion 16 of the keyboard portion 16 is
g is engaged with the opening periphery of the recess 14, each slide knob 17 is operated in the same manner as in the above case, and each locking piece 18 is engaged with the hole 16f of each engagement recess 16e. In this way, together with the stored items in the recess 14, each key 15a,
The typewriter can be stored without exposing the 15b. At this time, as shown in FIG.
By covering the upper part of the printing mechanism, the printing mechanism, character keys 15a, and function keys 15b can be protected from dust without covering with a soft case or the like.

Furthermore, in this embodiment, accessories of the typewriter can be stored in the recess 14 while the recess 14 is closed by the keyboard portion 16, so these accessories can be stored in a place separate from the typewriter. There is no need to do so, and it is possible to prevent the accessories from being lost, and when the accessories are to be used, they can be taken out from the recess 14 and used on the spot.

Also, in this embodiment, as shown in Figure 1.2,
Since there is no difference in height between the portion of the main body frame 1 where the keyboard section 16 is attached and the printing mechanism section, the mechanical strength of the main body frame 1 itself will not be reduced.

Effects of the Invention As detailed above, the present invention allows keys to be placed at a lower position without reducing mechanical strength, making operation easier, and allowing accessories such as a type wheel and printing ribbon to be mounted within the frame. This has the advantage of being able to be stored without the risk of losing it.

[Brief explanation of drawings]

Figures 1 to 4 show an embodiment of the present invention, with Figure 1 being a perspective view of the keyboard section removed from the main body frame, and Figure 2 being a perspective view of the keyboard section being attached to the main body frame. FIG. 3 is a partial plan cross-sectional view showing the correspondence between the slide knob of the main body frame and the engaging recess of the keyboard portion, and FIG. 4 is a partial side cross-sectional view of the printing mechanism. In the drawings, 1... Body frame, 2... Platen, 3... Ribbon cassette, 3a... Printing ribbon,
5... Type wheel, 6... Pulse motor, 7...
- Printing hammer, 14... recess, 15a... letter key, 15b... function key, 16... keyboard section.

Claims (1)

[Claims] 1. A keyboard section (16) having a plurality of character keys (15a), function keys (15b), etc.;
A printing mechanism (2, 5, 6, 7, etc.) that operates based on input data from 16), and a frame (1) formed on one side of the printing mechanism (2, 5, 6, 7, etc.) A concave portion (14) that opens upward.
The keyboard portion (16) is removably attached to the opening periphery of the recess (14), and in the attached state, the keyboard portion (16) is attached to the opening periphery of the recess (14).
4) A printing device characterized in that it is configured to close. 2. The keyboard section (16) allows key input regardless of whether it is attached to or removed from the recessed section (14), and the printing mechanism section (2, 5, 6, 7, etc.) operates based on the input data. A printing device according to claim 1. 3 The keyboard part (16) has keys (15a, 15b
3. The printing device according to claim 2, wherein the printing device is configured such that it can be installed in the recess (14) with the surface (16a) having a surface (16a) facing upward or downward. 4. The printing device according to claim 1, wherein the inside of the recess (14) is used as a storage area for a type wheel (5), a printing ribbon (3a), etc.