JP4258171B2 - Line printer housing - Google Patents
Line printer housing Download PDFInfo
- Publication number
- JP4258171B2 JP4258171B2 JP2002142871A JP2002142871A JP4258171B2 JP 4258171 B2 JP4258171 B2 JP 4258171B2 JP 2002142871 A JP2002142871 A JP 2002142871A JP 2002142871 A JP2002142871 A JP 2002142871A JP 4258171 B2 JP4258171 B2 JP 4258171B2
- Authority
- JP
- Japan
- Prior art keywords
- pedestal
- exterior cover
- line printer
- cover
- casing according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Accessory Devices And Overall Control Thereof (AREA)
Description
【0001】
【発明の属する技術分野】
本発明は、ラインプリンタの筐体に関する。
【0002】
【従来の技術】
印字ハンマにより印刷を行うインパクトラインプリンタにおいて、印刷時の打撃音並びにそれに起因する騒音の低減要求が多い。これらの音を小さくするためには、打撃音そのものを小さくする、または、プリンタ筐体内部に設けられた吸音部材や音源を囲う外装カバーによって打撃音を封じ込めるという方法が考えられる。しかし、印刷時の打撃音は機器の基本印刷性能、特に印刷速度や印字力(印刷物の濃度)と密接な関係にあり、打撃音自体を低減することは難しく、一般的には後者の方法を用いることが多かった。
【0003】
具体的には、印刷用紙収納部を兼ねた印刷機構部用の台座部分と、印刷機構部を覆い、且つプリンタの稼働に必要な部位にアクセス可能な外装カバーとの係合部分にパッキン材を使用して音漏れを防止すると共に、筐体内部に吸音材を貼付け、防音効果を高めるなどの方法が用いられてきた。しかし、係合部分の形状に合わせたパッキンや筐体内部の形状に合わせた吸音材は複雑な形状となってしまう上、且つ十分な防音効果を得難い場合が多かった。また、外装カバーや台座と別部材であるパッキン等を使用して吸音効果を持たせることは、同一部材を用いることに比べ、製造時やリサイクルの面でコストがかかる。
【0004】
また、プリンタ機器の安定稼働を維持するためには保守作業(調整)が必要となる。調整具を有する保守作業対象部は、安易な変更を防止する観点から、通常アクセス困難な位置(印刷機構部の後部等)にある。そのため、印刷機構部を覆う外装カバー一式を取り外し、保守作業対象部にアクセス可能な状態にする必要があった。また、外装カバーは大型のため重量が重くなる傾向があり、台座との係合部にパッキンや吸音材を設けた場合、吸着や大きな摩擦が生じ、取扱いが煩雑になると共に、保守作業の障害になることさえあった。
【0005】
【発明が解決しようとする課題】
本発明は、台座部分と外装カバーとの係合部分の防音効果を高めながら、且つ一体化された比較的大型のカバーでも容易に取付け・取外しを可能なカバーを提供することを目的とする。
【問題を解決するための手段】
上記課題を解決するため、本発明では、インパクト式の印字ハンマを使用して印刷を行うラインプリンタで、印刷用紙を収納可能な印刷機構部設置用の台座部分と、印刷機構部を収納する外装カバーとから構成されるラインプリンタの筐体において、前記台座部分の上部の一端と他端とにガイドレールを設け、前記外装カバーは前記ガイドレールに沿ってスライド可能な2つの長手係合部を備えることを特徴とする。
【0006】
また、前記外装カバーのスライド部分と前記台座部分のガイドレールとの接触面の部材を板状とし、各々の面接触を保ちながら一部をほぼ直角に曲げた構成とすることで、前記外装カバーと台座間の気密性を確保し防音効果を高めることを特徴とする。
【0007】
また、前記外装カバーと前記台座とをネジ留め固定することを特徴とする。
【0008】
また、前記台座の後部に前記外装カバーと係合するフランジ部を設けることを特徴とする。
【0009】
更に、前記外装カバーは、前記フランジ部の係合と前記ネジ留めにより、前記台座に対し上下方向に固定されることを特徴とする。
【0010】
【発明の実施の形態】
以下、本発明の実施の形態を図面を用いて詳細に説明する。
【0011】
図1に、本発明の一例となるプリンタの筐体の分解斜視図、図2にガイド部の断面図を示す。
【0012】
本発明のラインプリンタの筐体は、ベース部分を“コ”の字型にした外装カバー1と、外装カバー1の開口部分を塞ぐ前面カバー2と、台座3とで構成される。台座3には、外装カバー1と係合するガイド4を設ける。このガイド4は、外装カバー1を図1の矢印A方向にスライドさせる際の案内となる。
【0013】
その際、図2に示す断面図のように、外装カバー1の2つの長手状のスライド部分と前記台座部分のガイド4との接触面の部材を板状とし、各々の面接触を保ちながら一部をほぼ直角(図2のBの部分)に曲げた構成とする。言い換えると、外装カバー1のC型形状に対し係合するようにガイド4をL型形状とする。この形状とすることで、ガイド4と外装カバー1との隙間が狭い上に、騒音が空気伝播する際、ガイド4と外装カバー1の隙間(合わせ)部分を通るが、図2のように、ほぼ直角の曲げ部Bを持つため、外装カバー内1で発生した音は漏れにくくなる。そして、曲げ部があることで、曲げ部が無い場合に比べ、騒音が効果的に減衰するためである。従って、騒音の低減が可能となる。
【0014】
また、図3に示すように、外装カバー1のスライドが着実に完了した時に、外装カバー1のL型の曲げ部と係合する後部フランジ5を台座3に設ける。
【0015】
さらに、図1に示すように、外装カバー1の長手先端部分に、スライド方向に平行な固定構造6を設けて外装カバー取付け時に各係合部分での気密性を確保し、防音効果を高める。なお、固定構造6はネジ留め等が考えられる。後部フランジとネジ留めにより、外装カバー1は台座3に対して完全に固定され、上下方向へのずれが無くなる。
【0016】
また、本発明の筐体では、ガイド4及び先端部分の固定構造6により、外装カバー1取付け時に位置合わせも同時に行われる。これは、外装カバー1とガイド4の係合部分の形状が一致するためである。
【0017】
【発明の効果】
本発明による筐体を使用することにより、筐体の防音効果を減少させることなく比較的大型の外装カバーでも容易に取付け取外しが可能になり、保守作業が容易になる。
【0018】
又、取付け時の外装カバーの位置合わせが不要になると共に、比較的大型の外装カバーでも、固定箇所を最小限にすることが可能である。
【0019】
さらに、パッキンや吸音材に使用される材料の多くは樹脂であり、これら従来技術と比較して、環境に配慮した製品を提供することが可能である。
【図面の簡単な説明】
【図1】 本発明によるプリンタ筐体の構造を示す概略斜視図である。
【図2】 ガイドレールと外装カバーの係合部分の断面図である。
【図3】 後部フランジ部の断面図である。
【符号の説明】
1は外装カバー、2は前面カバー、3は台座、4はガイド、5は後部フランジ、6は外装カバー先端部固定構造である。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a case of a line printer.
[0002]
[Prior art]
In an impact line printer that performs printing using a printing hammer, there are many demands for reducing the impact sound during printing and the noise resulting therefrom. In order to reduce these sounds, a method of reducing the impact sound itself or confining the impact sound with an external cover surrounding the sound absorbing member or the sound source provided inside the printer housing is conceivable. However, the impact sound at the time of printing is closely related to the basic printing performance of the device, especially the printing speed and printing force (print density), and it is difficult to reduce the impact sound itself. Often used.
[0003]
Specifically, a packing material is applied to the engaging portion of the base portion for the printing mechanism portion that also serves as the printing paper storage portion, and the exterior cover that covers the printing mechanism portion and is accessible to the portion necessary for the operation of the printer. In addition to preventing sound leakage through use, a method has been used such as affixing a sound-absorbing material inside the housing to enhance the soundproofing effect. However, the packing according to the shape of the engaging portion and the sound absorbing material according to the shape inside the housing are complicated in shape, and it is often difficult to obtain a sufficient soundproofing effect. In addition, using a packing or the like that is a separate member from the exterior cover or the pedestal to provide a sound absorbing effect is more costly in manufacturing and recycling than using the same member.
[0004]
Also, maintenance work (adjustment) is required to maintain the stable operation of the printer device. The maintenance work target part having the adjustment tool is usually in a position where it is difficult to access (such as the rear part of the printing mechanism part) from the viewpoint of preventing easy change. For this reason, it is necessary to remove the set of exterior covers that cover the printing mechanism unit so that the maintenance work target unit can be accessed. Also, the exterior cover tends to be heavy due to its large size, and when packing or a sound absorbing material is provided at the engaging part with the pedestal, suction and large friction occur, which makes handling difficult and obstructs maintenance work. Even became.
[0005]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION An object of the present invention is to provide a cover that can be easily attached and detached even with a relatively large cover integrated while enhancing the soundproofing effect of the engaging portion between the base portion and the exterior cover.
[Means for solving problems]
In order to solve the above problems, in the present invention, in a line printer that performs printing using an impact-type printing hammer, a pedestal part for installing a printing mechanism unit capable of storing printing paper, and an exterior housing the printing mechanism unit In the case of a line printer comprising a cover, guide rails are provided at one end and the other end of the upper portion of the pedestal portion, and the exterior cover has two longitudinal engaging portions slidable along the guide rail. It is characterized by providing.
[0006]
Further, the exterior cover has a configuration in which a member of a contact surface between the slide portion of the exterior cover and the guide rail of the pedestal portion is formed in a plate shape, and a part thereof is bent substantially at a right angle while maintaining each surface contact. The airtightness between the pedestal and the base is ensured and the soundproofing effect is enhanced.
[0007]
The exterior cover and the pedestal may be fixed with screws.
[0008]
In addition, a flange portion that engages with the exterior cover is provided at a rear portion of the pedestal.
[0009]
Further, the exterior cover is fixed in the vertical direction with respect to the pedestal by the engagement of the flange portion and the screwing.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0011]
FIG. 1 is an exploded perspective view of a casing of a printer as an example of the present invention, and FIG. 2 is a sectional view of a guide portion.
[0012]
The case of the line printer according to the present invention includes an
[0013]
At that time, as shown in the cross-sectional view of FIG. 2, the members of the contact surface between the two long slide portions of the
[0014]
Further, as shown in FIG. 3, a rear flange 5 that engages with the L-shaped bent portion of the
[0015]
Further, as shown in FIG. 1, a fixing structure 6 parallel to the sliding direction is provided at the longitudinal tip portion of the
[0016]
In the case of the present invention, the guide 4 and the fixing structure 6 for the tip end portion are also aligned at the same time when the
[0017]
【The invention's effect】
By using the casing according to the present invention, it is possible to easily attach and remove even a relatively large exterior cover without reducing the soundproofing effect of the casing, thereby facilitating maintenance work.
[0018]
In addition, it is not necessary to align the outer cover at the time of attachment, and even with a relatively large outer cover, the number of fixing points can be minimized.
[0019]
Furthermore, many of the materials used for the packing and the sound absorbing material are resins, and it is possible to provide environmentally friendly products as compared with these conventional techniques.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing the structure of a printer housing according to the present invention.
FIG. 2 is a cross-sectional view of an engagement portion between a guide rail and an exterior cover.
FIG. 3 is a cross-sectional view of a rear flange portion.
[Explanation of symbols]
1 is an exterior cover, 2 is a front cover, 3 is a pedestal, 4 is a guide, 5 is a rear flange, and 6 is an exterior cover front end fixing structure.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002142871A JP4258171B2 (en) | 2002-05-17 | 2002-05-17 | Line printer housing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002142871A JP4258171B2 (en) | 2002-05-17 | 2002-05-17 | Line printer housing |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2003326805A JP2003326805A (en) | 2003-11-19 |
JP4258171B2 true JP4258171B2 (en) | 2009-04-30 |
Family
ID=29703034
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2002142871A Expired - Fee Related JP4258171B2 (en) | 2002-05-17 | 2002-05-17 | Line printer housing |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4258171B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111516401A (en) * | 2020-05-29 | 2020-08-11 | 得实打印机(江门)有限公司 | Support for printer |
-
2002
- 2002-05-17 JP JP2002142871A patent/JP4258171B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2003326805A (en) | 2003-11-19 |
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