JPS6319156Y2 - - Google Patents

Description

【考案の詳細な説明】 この考案は、点字タイプライタの印字機構の改
良に関するものである。[Detailed Description of the Invention] This invention relates to an improvement of the printing mechanism of a Braille typewriter.

従来、電動式点字タイプライタとして、６点印
字を行う印字ロツドをそれぞれソレノイドで駆動
するよう構成したものが知られている。この種の
点字タイプライタは、使用する用紙の重量と、ソ
レノイドを付勢する電流量との関係により点度が
変化する。このため、従来においては、使用する
点字用紙の重量を予め定めておき、この特定の印
字用紙に対し適正な点度で印字し得るようソレノ
イドの電流量を経験的に設定している。 2. Description of the Related Art Conventionally, electric Braille typewriters are known in which each printing rod for printing at six points is driven by a solenoid. In this type of Braille typewriter, the dot intensity changes depending on the relationship between the weight of the paper used and the amount of current that energizes the solenoid. For this reason, conventionally, the weight of the Braille paper to be used is determined in advance, and the amount of current of the solenoid is empirically set so as to print at an appropriate dot level on this particular printing paper.

しかしながら、電流量を多くしてソレノイドを
付勢した場合、印字ロツドに作用する運動エネル
ギーが増大し、点字用紙に対する衝撃力が強くな
り、用紙を破損する危険がある。すなわち、用紙
を破損しない程度にソレノイドを付勢する電流量
を設定することは極めて面倒である。従つて、こ
の種の点字タイプライタにおいては、重量の異な
る点字用紙に対し、適度の電流量設定でソレノイ
ドを付勢し、用紙を破損することなく常に最良の
明瞭度を以つて印字できるものが要求される。 However, if the solenoid is energized by increasing the amount of current, the kinetic energy acting on the printing rod will increase, and the impact force on the Braille paper will become stronger, creating the risk of damaging the paper. That is, it is extremely troublesome to set the amount of current that energizes the solenoid to an extent that does not damage the paper. Therefore, in this type of Braille typewriter, it is necessary to energize the solenoid with an appropriate current setting to print on Braille papers of different weights with the best clarity without damaging the paper. required.

そこで、本考案者は、前述したように点字用紙
を破損することなく常に最良の明瞭度を以つて印
字できる点字タイプライタを得るべく種々検討を
重ねた結果、ソレノイドを付勢する電流量を比較
的衝撃の少ない程度の値に設定し、同一点字を同
位置で数回印字動作を行うことに着目して試験を
行つた結果、第１図に示すような特性が得られ
た。 Therefore, as mentioned above, the inventor of the present invention conducted various studies in order to obtain a Braille typewriter that can always print with the best clarity without damaging the Braille paper, and as a result, compared the amount of current that energizes the solenoid. As a result of conducting a test with a focus on printing the same Braille characters at the same position several times, the characteristics shown in FIG.

すなわち、第１図に示す特性は、印字ロツドを
駆動するソレノイドを付勢するための電流をパラ
メータとし、所定重量の点字用紙（例えば90Kg／
連の上質紙）に対する同一点字の同位置における
印字回数と印字された点字の明瞭度（０〜100％）
の関係を示すものである。第１図から明らかなよ
うに、例えば500ATの電流でソレノイドを付勢
した場合は、多数回印字しても満足し得る明瞭度
が得られず〔特性線Ａ参照〕、また2000ATの電
流では第１回目の印字で比較的良好な明瞭度が得
られても第２回目の印字では用紙が破損し〔特性
線Ｂ参照〕、1000ATの電流で２〜３回の印字に
より良好な明瞭度の点字が得られることが判つた
〔特性線Ｃ参照〕。 In other words, the characteristics shown in Fig. 1 are based on the current for energizing the solenoid that drives the printing rod, and a predetermined weight of Braille paper (for example, 90 kg/kg).
Number of times the same Braille is printed at the same position on high-quality paper) and the clarity of the printed Braille (0 to 100%)
This shows the relationship between As is clear from Figure 1, for example, when the solenoid is energized with a current of 500AT, satisfactory clarity cannot be obtained even after printing many times [see characteristic line A], and with a current of 2000AT, the Even if relatively good clarity was obtained in the first printing, the paper was damaged in the second printing [see characteristic line B], and by printing 2 to 3 times with a current of 1000 AT, braille with good clarity was obtained. It was found that the following can be obtained (see characteristic line C).

次いで、前記の特性結果に基づいて、比較的少
ない印字回数で良好な明瞭度の点字が得られる電
流設定とし、点字用紙の重量を増した場合につき
試験したところ、第２図に示すような特性が得ら
れた。すなわち、先の試験で使用した点字用紙
（90Kg／連の上質紙）よりも若干重量のある点字
用紙（110Kg／連の上質紙）を使用した場合にお
いても、２〜３回の印字により充分良好な明瞭度
の点字が得られることが判つた〔特性線Ｄ参照〕。 Next, based on the above characteristic results, we set the current setting so that Braille with good clarity can be obtained with a relatively small number of printings, and tested the case when the weight of the Braille paper was increased.The results showed the characteristics as shown in Figure 2. was gotten. In other words, even when using braille paper (110 kg/ream of high-quality paper) that is slightly heavier than the braille paper (90 kg/ream of high-quality paper) used in the previous test, the results were sufficiently good after printing 2 to 3 times. It was found that Braille with good clarity could be obtained (see characteristic line D).

以上の結果から、点字用の印字ロツドを駆動す
るソレノイドにつき、１回の操作で約50％の明瞭
度となる点字を印字できる程度の電流量に設定し
ておき、このような条件下において同一点字の同
位置における印字回数を２〜３回に設定すること
により、重量の異なる点字用紙の使用を可能にす
ると共にこれらの用紙を破損することなく常に良
好な明瞭度の印字を達成できることを突き止め
た。 Based on the above results, the solenoid that drives the printing rod for Braille is set to an amount of current that can print Braille with approximately 50% clarity in one operation, and under these conditions the same amount of current is set. It was discovered that by setting the number of times the Braille is printed at the same position two or three times, it is possible to use Braille papers of different weights and always achieve good clarity of printing without damaging these papers. Ta.

従つて、本考案の目的は、重量の若干異なる用
紙を使用しても用紙を破壊することなく、常に最
適な明瞭度を以つて点字の印字を行うことができ
る点字タイプライタの印字機構を提供するにあ
る。 Therefore, the purpose of the present invention is to provide a printing mechanism for a Braille typewriter that can always print Braille with optimum clarity even when paper of slightly different weight is used without destroying the paper. There is something to do.

前記の目的を達成するため、本考案において
は、点字用印字ロツドを印字ヘツド内に弾力的に
保持し、これら印字ロツドをそれぞれソレノイド
で駆動し対向する受板との間に位置する点字用紙
に突出させて印字を行うよう構成した点字タイプ
ライタにおいて、１回の印字で約50％の明瞭度の
点字を印字し得る電流量をソレノイドに供給する
と共に同一点字を同位置で２〜３回の繰返し印字
を行うソレノイド制御手段を設けることを特徴と
する。 In order to achieve the above object, in the present invention, printing rods for Braille are elastically held within a printing head, and each of these printing rods is driven by a solenoid to print on the Braille paper located between the opposing receiving plate. In a Braille typewriter configured to print in a protruding manner, the amount of current that can print Braille with approximately 50% clarity in one printing is supplied to the solenoid, and the same Braille is printed in the same position two to three times. It is characterized by providing a solenoid control means for repeatedly printing.

次に、本考案に係る点字タイプライタの印字機
構の実施例につき、添付図面を参照しながら以下
詳細に説明する。 Next, an embodiment of the printing mechanism of the Braille typewriter according to the present invention will be described in detail below with reference to the accompanying drawings.

第３図は、本考案印字機構の構成配置を示すも
のである。第３図において、参照符号１０は印字
ヘツドを示し、この印字ヘツド１０には縦列に３
本の印字ロツド１２，１４，１６が突出自在に挿
通配置されている。前記印字ヘツド１０の先端部
には、受板１８が対向配置される。この受板１８
の端面は、前記印字ヘツド１０の端面との間にお
いて、印字用紙２０を介挿し得るに充分な離間距
離を保持するよう設置する。また、受板１８の端
面には、前記印字ヘツド１０から突出する印字ロ
ツド１２〜１６の先端部と対応させて受孔２２，
２４，２６を刻設する。この場合、印字ロツド１
２〜１６は、それぞれコイルばね２８を介してそ
の先端部が印字ヘツド１０の内方に弾力的に保持
され、他端部に後述するソレノイドを設けて各印
字ロツド１２〜１６を駆動することにより、印字
ロツド１２〜１６の先端部がコイルばね２８の弾
力に抗して印字ヘツド１０より突出して印字用紙
２０に所要の点字が印字される。なお、第３図に
おいて、参照符号３０は点字用紙供給ロールであ
る。 FIG. 3 shows the configuration of the printing mechanism of the present invention. In FIG. 3, reference numeral 10 designates a print head, which includes three columns in a column.
Book printing rods 12, 14, and 16 are inserted and arranged so as to be able to protrude freely. A receiving plate 18 is disposed opposite the tip of the print head 10. This receiving plate 18
The end face of the printing head 10 is installed so as to maintain a sufficient distance from the end face of the printing head 10 to allow the printing paper 20 to be inserted therein. Further, in the end surface of the receiving plate 18, receiving holes 22 are formed in correspondence with the tips of the printing rods 12 to 16 protruding from the printing head 10.
24 and 26 are carved. In this case, printing rod 1
The tips of the rods 2 to 16 are elastically held inside the print head 10 via coil springs 28, and a solenoid, which will be described later, is provided at the other end to drive each of the print rods 12 to 16. The tips of the printing rods 12 to 16 protrude from the printing head 10 against the elasticity of the coil spring 28, and the desired Braille characters are printed on the printing paper 20. In addition, in FIG. 3, reference numeral 30 is a Braille paper supply roll.

しかるに、前述した印字ヘツド１０は、第４図
に示すように、コイルばね２８で弾力的に保持し
た印字ロツド１２〜１６の他端部にそれぞれ操作
杆３２の一端部を当接させ、各操作杆３２の他端
部側にそれぞれ電磁吸引力を発生するソレノイド
３４を設けた構成からなる。従つて、ソレノイド
３４に所要の電流を供給すれば、この電流量に応
じて電磁吸引力が発生し、操作杆３２が磁力吸引
されると共にこの操作杆３２のてこ作用により各
印字ロツド１２〜１６が点字用紙に向つて打ち出
される。 However, as shown in FIG. 4, the printing head 10 described above has one end of the operating rod 32 in contact with the other end of each of the printing rods 12 to 16, which are elastically held by a coil spring 28. It has a structure in which a solenoid 34 that generates an electromagnetic attraction force is provided on the other end side of the rod 32, respectively. Therefore, if a required current is supplied to the solenoid 34, an electromagnetic attractive force is generated in accordance with the amount of current, and the operating rod 32 is magnetically attracted, and the lever action of the operating rod 32 causes each printing rod 12 to 16 to be is punched out onto the Braille paper.

そこで、本考案においては、前記電磁吸引力を
発生するソレノイド３４に対し、１回の操作で約
50％の明瞭度で点字を印字できる程度の電流量を
供給するように設定し、しかも同一点字を同位置
において２〜３回繰返し印字を行うよう構成す
る。 Therefore, in the present invention, the solenoid 34 that generates the electromagnetic attraction force is approximately
It is set to supply enough current to print Braille characters with 50% clarity, and is configured to print the same Braille characters two to three times at the same position.

このように、点字タイプライタの印字機構を構
成することにより、例えば直径約0.8〜1.0mmの印
字ロツドを使用した場合、１回の印字におけるソ
レノイドへ供給する電流を1000ATとし、点字用
紙として80〜120Kg／連の上質紙を使用し、同一
点字を同位置で２〜３回繰返して印字試験を行つ
たところ、用紙を破壊することなく常に90％以上
の明瞭度を有する点字の印字が実現できることを
確認することができた。なお、同一点字を同位置
で２〜３回繰返して印字を行う手段としては、電
子スイツチを使用して所定の時間内にソレノイド
３４へ供給する電流を所定回数だけ断続する回路
構成により容易に実現できる。 By configuring the printing mechanism of a Braille typewriter in this way, for example, when using a printing rod with a diameter of approximately 0.8 to 1.0 mm, the current supplied to the solenoid for one printing is 1000 AT, and the current supplied to the solenoid for one printing is 80 to 80 AT. In a printing test using 120kg/ream of high-quality paper and repeating the same Braille characters in the same position two to three times, it was possible to consistently print Braille characters with a clarity of 90% or higher without destroying the paper. I was able to confirm that. Note that printing the same Braille characters two to three times at the same position can be easily achieved by using a circuit configuration that uses an electronic switch to intermittent the current supplied to the solenoid 34 a predetermined number of times within a predetermined time. can.

前述した実施例から明らかなように、本考案に
よれば、比較的簡単な回路構成により、ソレノイ
ド３４の供給電流量を低減して点字用紙に対する
印字ロツドの衝撃を緩和することができ、複数回
の繰返し印字で異なる重量の点字用紙に対し常に
最適明瞭度の点字を印字できるため、消費電力の
低減と共に点字用紙の制限がなくなるため、経済
的に優れた点字タイプライタを得ることができ
る。 As is clear from the embodiments described above, according to the present invention, with a relatively simple circuit configuration, the amount of current supplied to the solenoid 34 can be reduced to alleviate the impact of the printing rod on the Braille paper, and the impact of the printing rod on the Braille paper can be reduced. By repeatedly printing Braille of different weights, Braille can always be printed with optimal clarity, reducing power consumption and eliminating the limitation of Braille paper, making it possible to obtain an economically superior Braille typewriter.

以上、本考案の好適な実施例について説明した
が、本考案の精神を逸脱しない範囲内において
種々の改良並びに変更を施すことができることは
勿論である。 Although the preferred embodiments of the present invention have been described above, it goes without saying that various improvements and changes can be made without departing from the spirit of the present invention.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は点字用印字ロツドを駆動するソレノイ
ドの供給電流をパラメータとする印字回数と明瞭
度との関係を示す特性線図、第２図はソレノイド
に対する最適供給電流時における異なる重量の点
字用紙への印字回数と明瞭度との関係を示す特性
線図、第３図は本考案に係る点字タイプライタの
印字機構の構成配置を示す要部断面図、第４図は
第３図に示す印字ヘツドの一構成例を示す説明図
である。 １０……印字ヘツド、１２，１４，１６……印
字ロツド、１８……受板、２０……印字用紙、２
２，２４，２６……受孔、２８……コイルばね、
３０……点字用紙供給ロール、３２……操作杆、
３４……ソレノイド。 Figure 1 is a characteristic diagram showing the relationship between the number of prints and clarity using the supply current of the solenoid that drives the Braille printing rod as a parameter, and Figure 2 is a characteristic diagram showing the relationship between the number of printings and clarity using the supply current of the solenoid that drives the Braille printing rod. 3 is a cross-sectional view of the main parts showing the configuration and layout of the printing mechanism of the Braille typewriter according to the present invention, and FIG. 4 is a diagram showing the print head shown in FIG. 3. It is an explanatory diagram showing one example of composition of. 10... Printing head, 12, 14, 16... Printing rod, 18... Receiving plate, 20... Printing paper, 2
2, 24, 26... Receiving hole, 28... Coil spring,
30...Braille paper supply roll, 32...operation lever,
34...Solenoid.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 点字用印字ロツドを印字ヘツド内に弾力的に保
持し、これら印字ロツドをそれぞれソレノイドで
駆動し対向する受板との間に位置する点字用紙に
突出させて印字を行うよう構成した点字タイプラ
イタにおいて、１回の印字で約50％の明瞭度の点
字を印字し得る電流量をソレノイドに供給すると
共に同一点字を同位置で２〜３回の繰返し印字を
行うソレノイド制御手段を設けることを特徴とす
る点字タイプライタの印字機構。 In a braille typewriter, braille printing rods are elastically held in a printing head, and each of these printing rods is driven by a solenoid so as to project onto a braille paper located between an opposing receiving plate and print. , characterized by providing a solenoid control means that supplies an amount of current to the solenoid to print Braille with approximately 50% clarity in one printing, and repeatedly prints the same Braille at the same position two or three times. The printing mechanism of a Braille typewriter.