JPS58160179A - Printer apparatus - Google Patents

Abstract

PURPOSE:To obtain the titled apparatus enabling the easy replacement of a type wheel and the easy supply of a ribbon, by a constitution wherein a front cover can be opened and shut without removing mounted options. CONSTITUTION:Options such as a sound abosrber 8, a sound insulating cover 12, a paper guide 11, a page feeder 15 and a bracket 10, which are provided on the titled apparatus, are made selectable arbitrarily and mountable independently from each other. A front cover 2 is opened in the state wherein all the options are mounted, operations for supplying a ribbon and a type wheel to be set in the apparatus are enabled thereby, and a trouble of mounting and removing the options at every time of these operations is removed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an option mounting mechanism in a printer device.

In general, printer devices have options such as a paper guide that supports the inserted cut sheet, and a page feeder that feeds successive forms into the printing unit one by one.In addition, so-called impact printers, which print by hitting the type with a hammer, are noisy. There are options such as sound absorbers and soundproof covers to prevent this.

By the way, in conventional printer devices, if at least one of a sound absorber, a soundproof cover, and a paper guide is installed, a page feeder cannot be installed. Therefore, when using a page feeder, the sound absorber, soundproof cover, and paper guide must be removed one by one. Therefore, it was very bothersome and I was having trouble finding a place to put it. For this reason, there are cases in which a printer device equipped with a sound absorber, a soundproof cover, and a paper guide, and a printer device equipped with a page feeder are manufactured separately. There is also a page feeder with a soundproof cover attached, but since it is larger in size, it was made separately from the one for single sheets. Moreover, if it is equipped with a page feeder,
When changing the ribbon or type wheel, you have to remove the soundproof cover and the front cover of the printer, which is extremely inconvenient and, in some cases,
The page feeder had to be removed every time the ribbon or type wheel was replaced. When the soundproof cover or front cover is opened and closed, abnormalities such as the leading edge of the set paper being bent or wrapped around the platen tend to occur, and the paper is often forced to be reinserted.

The present invention eliminates these drawbacks of the conventional example at once, and allows a page feeder to be mounted with or without a sound absorber, a soundproof cover, and a paper guide. The present invention provides a printer device in which the front cup (-) can be opened to replenish ribbons and type wheels set inside the printer when the printer is installed.

Hereinafter, embodiments will be described in detail with reference to the drawings.

First, FIG. 1 shows an inkjet printer according to an embodiment of the present invention, with no options installed.
Reference numeral 1 indicates an upper cover fixed to the printer main body and is made of a material such as grafted polyphenylene ether resin; 2 indicates a front cover made of the same material and is detachably and openably attached to the front of the upper cover 1; 3 indicates an upper cover. Insert the paper 4 in the direction of the arrow on the platen located between 1 and front cup (-2), and turn the knob 5 to set it.In the case of a printer, the starting position is usually on the left edge, regardless of the size of the paper. Printing starts from the position. 6 is a pail shaft for holding the paper, and 7 is a character scale.

FIG. 2 shows a removable sound absorber 8 installed along the platen 3, and a removable bracket attached to the retaining holes 9 (M in FIG. 1) formed on both left and right sides of the upper cover 1. 10 is shown inserted.

The sound absorber 8 is made of ABS resin, for example, and has fitting holes 21 partially cut out on both end faces, as shown in FIG. It is designed to easily fit into the protrusion provided on the printer body side. Also, a knurling 22 is cut in the image, and it can be easily removed by pulling on this part. A sound absorbing member 23, such as polyester foam, is packed inside. When the sound absorber 8 is attached, one edge from above the soundproofing and paper insertion is attached to the platen 3.
It is desirable to be held in contact with the Therefore, the weight 24 is fixed so that a rotational moment in the direction of the arrow is always applied to the support shaft.

The bracket 10 is made of polyacetal resin, for example, and has elastic claws 25 on both sides as shown in FIG. It is fixed in place and can be easily removed. An engagement shaft 26 is provided on each side of the bracket 10.
a and 26b protrude, and a paper guide and a soundproof cuckoo are respectively engaged and held by these retaining shafts.

FIG. 3 shows a state in which a paper guide 11 and a soundproof cover 12 are further mounted on the printer shown in FIG.

Partially notched retaining holes provided at both end corners of the paper guide 11 are fitted into the inner retaining shafts 26a of the bracket 10 to attach it. On the other hand, the soundproof cover 12 has both side arm portions 12a.
A retaining hole is provided at the tip of the bracket 10, and the retaining hole is connected to the external engagement shaft 26 of the bracket 10 by utilizing the elasticity of the arm portion 12a.
b Insert and install K. Both the paper guide 11 and the soundproof cup (-12) are removable and can rotate around the retaining portion with the bracket 10.

The back of the paper guide 1] is equipped with foldable legs (not shown), which can be folded down when not in use. Reference numeral 27 in FIG. 7 is a stopper when the soundproof cup <-12 is lifted and tilted toward the paper guide side.

To explain the paper guide 11 in more detail, it is made of, for example, ABS resin, and includes an extension guide 13 that can be pulled out as needed. This extension guide 13
#i, as shown in FIG. 8, when chevrons 30 are carved on both sides of the back side, grooves 31 are engaged with protrusions 32 formed on the paper guide 11, and the paper guides 11 are fitted. , Yamagata 30
The elastic claws 33 provided on the paper guide 11 engage with each other, so that the extension guide 13 can be held at an arbitrary extension dimension.

Further, in the fully pulled out state, another elastic claw 34 hooks on the end step portion 35 of the extension guide 13, which acts as a stopper and does not come off. In addition, extension guide 1
3 is pushed in the most, a part of the paper guide 11
It is designed to fit into the back side and hide from the surface.

Reference numeral 14 in FIG. 3 denotes a slidable positioning guide that regulates the position of the edge of the paper to be set.

Next, the soundproof cover 12 is made of, for example, As resin, and is transparent so that the inside can be seen. As shown in FIG. 9, a groove is formed in the area that contacts the front cover 2 of the printer so as to surround the periphery, and a rubber material 36 is inserted into the groove to enhance soundproofing and vibrationproofing effects. It is worn. In addition, FIG. 9ml shows the XX cross section of FIG. 9(4). Furthermore, a character scale 37 is printed on the surface facing the sound absorber 8. In this way, since the upper part of the platen 3 is mostly covered by the sound absorber 8 and the soundproof cover 12, it is possible to suppress the noise generated by printing from leaking to the outside to the maximum extent possible.

FIG. 4 shows a state in which a page feeder 15 is further mounted on the printer shown in FIG. In this case, the paper guide 11 folds down its legs, and is removably fitted into the front cover 2 at the outer side of the arms of the sound absorber 8 and the soundproof cover 12. (Refer to Figure 2 or Figure 3)).In the state shown in Figure 3, open the front cover 2 to easily remove it), insert the retaining part 15m of the page feeder 15 into that part, and then attach the platen. Engage with the shaft of 3. FIG. 12 shows the state of engagement.
A retaining ring 53 is loosely fitted onto the shaft 52m of the fixed driving gear 52, and the tip of the frame 54 of the page feeder is engaged with the retaining ring 53, and the latch lever 55 K, I'm going to get shishitch. At this time, the nine gears 56 of the frame 54K mesh with the drive gear 52, and power is transmitted to the page feeder through this series of gears. When the page feeder 15 is not mounted, the blind plate 16 is naturally fitted into the front cover 2. If this part is left open all the time, it will become a hole for noise leakage and is also unfavorable in terms of appearance.

As is clear from the above description, in this embodiment, the page feeder 15 is mounted with the sound absorber 8, the paper guide 11, and the soundproof cover 12 mounted (of course, even in the fully mounted state). Moreover, as shown in FIG. 5, the front cover 2 can be opened without removing the installed options. The 70-piece cover'-2 can be hooked and locked onto the retaining claw 41. Note that 42 is a knurling formed on both sides of the front cover 2, and when opening the front cover 2, Put your finger on it and try to open it.

It is necessary to open the front cover 2 when replacing the type wheel, replenishing the ribbon, or operating the switches and operation parts. As shown in FIG. 11, there is a locking claw 43 that is integrally formed with the upper cover 1 and has elasticity, and a round square hole 44 ( (see FIG. 5) are engaged and locked. The locking pawl 43 does not protrude from the cover and there is no risk of getting your hands caught, so it is extremely safe, and since the rubber piece 45 is placed near the locking pawl 430,
There is no vibration between the covers due to vibrations, etc., and the floor
It feels good when the head cover 2 is locked.

When you open the front cover 2, the 10th rI! As shown in the figure, there is a printing section placed on the carriage, and the printing section has a printing hammer 46 facing the platen 3,
Printing: Consists of a type wheel (not shown) attached to the front of the printer 46, a ribbon cassette 47 attached to the top, and the like. Since the inner edge 1b of the case 1 is formed so as to follow the outer shape of the ribbon cassette 47 when the 3-character mark is at the start position, it has a smooth appearance and a sense of stability. Further, as shown in FIG. 11, on the other side, an operating lever 48 and a switch 49 are arranged for adjusting the distance between the shim platen 3 and the printing hammer 46 depending on the thickness of the paper. The mechanical parts of these operating parts are covered with a cover 50 integrally molded with the case 1 to clearly distinguish the operating parts from other parts so as not to give a sense of fear to the user.

As explained above, according to the present invention, it is possible to arbitrarily combine options such as paper guides, sound absorbers, soundproof covers, page feed closures, etc. as necessary, or to install all of them in the printer at the same time. Moreover, it is extremely easy to attach and detach them with just one touch. Therefore,
Regardless of whether paper guide or page feeder is installed,
The installation of sound absorbers and soundproof covers prevents noise from being emitted to the outside, making it quiet. Also, you can select the installed options.
The front cup (-) can be opened and closed freely without having to remove it, making it easy to replace the type wheel and replenish ribbon. You no longer have to worry about finding a place to store removed options.Furthermore, opening and closing the front cutter or soundproof cover does not have a negative effect on loaded paper, making it easier to re-insert paper like in the past. The maximum width of paper when options are installed is the same as the maximum width of the printer alone, and is not affected by the options installed.

In addition, if the paper guide and page feeder are installed at the same time, fold the paper guide down to create space between it and the air cooling holes on the top of the top cover and the heat sink on the back of the printer. It is possible to prevent the internal temperature of the printer from rising by blocking the air holes etc. with the form-0 Also, if no options are installed, the mounting brackets for the paper guide and soundproof cover can be easily removed. This allows the printer to have a cleaner appearance. From the above, there is no need to use different models depending on the installed options, and a highly economical printer device can be provided.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention without options installed, FIG. 2 is a perspective view showing the same as shown in FIG. The figure shows the second
Figure 4 is a perspective view showing the version shown in Figure 3 with a paper guide and soundproof cover installed, Figure 5 is a perspective view of the version shown in Figure 3 with a page feeder further installed, and Figure 5 is the same as Figure 4. 6 is a perspective view showing the structure of the sound absorber, FIG. 7 is a perspective view showing the structure of the bracket, and FIG. 8 is a perspective view showing the structure of the bracket. The configuration diagram of the extension guide and its mounting mechanism, Figure 9, is as follows:
Figures 10 and 11 are perspective views showing the internal mechanism located at the bottom of the front cover, respectively, and Figure 12 shows the configuration of the retaining part for the page feeder and platen shaft. It is a diagram. 1...Top cover, 2...
...Front cover, 3...Platen,
8...Sound absorber, 9...
Engagement hole portion, 10...Bracket, 11
・・・・・・・・・−One paper guide, 12・・・・・・・・・
・Soundproof cover, 15...Page feeder. Patent applicant Rico Co., Ltd. - Figure 1 Figure 2 Figure 3 Figure 4 Figure 9 (A) Figure 10 Figure 1I Figure 1 Figure 12 Procedural amendment (voluntary) Revenue stamp amount'' IBfo 574 s fi i.□
Commissioner of the Patent Office Shima 1) Mr. Haruki■, Indication of the case Patent Application No. 1983-42831 2.81
Name 71,7-1 3. Relationship with the person making the amendment Applicant address 1-3-6 Nakamagome, Ota-ku, Tokyo
Name (674) Ricoh Co., Ltd. -Representative: Takeshi Inue 4, Agent: 105 Phone: 03 (431) 8111 (Representative)...
・ Insert the following sentence between 0 and 0.
As shown in FIG. 13, the attachment/detachment mechanism of 6 to/from the front cover 2 includes elastic claws 16a formed on the blind plate 16 in retaining portions formed on the inner side near both side hinge portions 2a of the front cover 2. Once the blind plate 16 is engaged, it can be easily removed by pulling it in the direction of the arrow, and it can be easily fitted in by pushing it. (3) Change "switch 49" on page 11, line 10 to "switch 49 for changing the printing pressure intensity of the printing hammer 46".
Correct. (4) On page 14, lines 2-3, “This is a configuration diagram.” was replaced with “
The configuration diagram, FIG. 13, is a perspective view showing a mechanism for attaching and detaching the blind plate to the front cover. ” is corrected. (5) Add attached Figure 13. The above-mentioned written patent claim includes options such as a sound absorber, a soundproof cup (-1) paper guide, page feeder, etc., and one or more of these options can be arbitrarily expressed in relation to each other. !So it can be installed,
A printer device O13 Fig. 452- is characterized in that the front cup can be opened and closed without removing the installed option.

Claims (1)

[Claims] A front cover is detachably and openably attached in front of an upper cover fixed to the printer body, and a sound absorber is detachably inserted along a platen located between the upper cover and the front cover; Left and right sides of the top cover 1
Brackets are removably inserted into the stopper holes formed in each of the brackets, and the first holes provided inside each of the brackets are
a paper guide whose corner portions on both sides are removably engaged with the retaining portions of the bracket, and which can be set in a predetermined position or folded down when not in use; and second retainers provided on the outside of each of the brackets. The tips of the arms on both sides removably engage with the parts to open and close the printing part: a soundproof cover that covers the area, and a part outside the sound absorber and the soundproof cover and inside from the hinge parts on both sides of the front cover. and a page feeder in which engaging parts on both sides are respectively inserted and removably engages with the platen shaft, and one or more of the above options can be installed in any combination, and the page feeder is installed. A printer device characterized in that the front cover can be opened to supply ribbons and the like without removing an option.