JPS581561A - Recording head - Google Patents
Recording headInfo
- Publication number
- JPS581561A JPS581561A JP10104781A JP10104781A JPS581561A JP S581561 A JPS581561 A JP S581561A JP 10104781 A JP10104781 A JP 10104781A JP 10104781 A JP10104781 A JP 10104781A JP S581561 A JPS581561 A JP S581561A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- spring
- core
- tailstock
- pressure
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J7/00—Type-selecting or type-actuating mechanisms
- B41J7/92—Impact adjustment; Means to give uniformity of impression
Landscapes
- Dot-Matrix Printers And Others (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、記録ヘッドに関するものであって、詳しくは
、鉛筆、クレヨン、顔料等で形成された消耗性の記録芯
を用いて図面用紙等の記録体の表面に描画記録を行う記
録ヘッドに関するものであり、記録芯の高速度での上下
移動および一定の芯圧を保証しつつ記録芯に対する衝撃
力の小さな記録ヘッドを提供するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recording head, and more specifically, the present invention relates to a recording head for drawing on the surface of a recording medium such as drawing paper using a consumable recording core made of a pencil, crayon, pigment, etc. The present invention relates to a recording head that performs recording, and provides a recording head that guarantees vertical movement of the recording core at high speed and constant core pressure, while having a small impact force on the recording core.
第1図は、従来のこの種のヘッドの要部の構成例を示す
構成説明図であって、1は記録体、2は記録芯、3は芯
ホルダ、4は芯押棒である。記録体1としては、たとえ
ば図面用紙が用いられる。FIG. 1 is a configuration explanatory diagram showing an example of the configuration of the main parts of a conventional head of this type, in which 1 is a recording body, 2 is a recording core, 3 is a core holder, and 4 is a tailstock bar. As the recording medium 1, for example, drawing paper is used.
記録芯2は、記録体1の表面に描画記録を行うものであ
って、たとえば鉛筆が用いられる。芯ホルダ3は、記録
体10表面に対向するように配置されていて、内部には
記録芯2が軸方向に沿って移動可能に挿入されるととも
にプツシ−31により保持されている。芯押棒4は、記
録芯2を押圧するものであって、記録芯2の一端を押圧
するように芯ホルダ3内に軸方向に沿って移動可能に挿
入されている、
このような構成において、記録にあたっては芯ホルダ3
を記録体1の表面近傍の所定の位置マで降下させるとと
もに、芯押棒4を降下させて記録芯2を記録体1の表面
に一定の力で押し付ける。The recording core 2 is used to record drawings on the surface of the recording medium 1, and is, for example, a pencil. The core holder 3 is disposed so as to face the surface of the recording medium 10, and the recording core 2 is inserted therein so as to be movable along the axial direction and is held by a pusher 31. In such a configuration, the tailstock rod 4 presses the recording core 2, and is inserted into the core holder 3 so as to be movable along the axial direction so as to press one end of the recording core 2. When recording, use lead holder 3.
is lowered at a predetermined position near the surface of the recording medium 1, and the tailstock 4 is lowered to press the recording core 2 against the surface of the recording medium 1 with a constant force.
ここで、記録芯2の消耗に応じて芯押棒4を降下させ、
押圧力が常に一定になるように制御される。Here, the tailstock 4 is lowered according to the wear of the recording core 2,
The pressing force is always controlled to be constant.
一方、記録をしない場合には、芯押棒4を所定の位置ま
で上昇させるとともに1芯ホルダ3も所定の位置まで上
昇させる。このとき、記録芯2はブツシュ31iCより
保持されてい′るので、記録芯2もブツシュ3と共に上
昇することになる。なお、芯押棒4は、端部が記録芯2
と接触しない位置まで上昇させておく。On the other hand, when recording is not to be performed, the tailstock 4 is raised to a predetermined position, and the single-core holder 3 is also raised to a predetermined position. At this time, since the recording core 2 is held by the bushing 31iC, the recording core 2 also rises together with the bushing 3. Note that the end of the tailstock 4 is connected to the recording core 2.
Raise it to a position where it does not come into contact with the
ところで、このような装置において、芯押棒4を高速で
降下させると、芯押棒4が記録芯2に高速で接触すると
ともに、記録芯2も記録体1に高速で接触することKな
る。この結果、記録芯2に大きな衝撃力が作用して、記
録芯2が折れたり、記録芯2の両端部が欠けて芯づまり
を生じたり画線品質が低下したりするおそれがある。こ
のような欠点を解決するために、芯押棒4を低速で降下
させることが考えられるが、それだけ所要時間を要する
ことになり、高速記録性が損われることKなる。By the way, in such an apparatus, when the tailstock 4 is lowered at high speed, the corestock 4 comes into contact with the recording core 2 at high speed, and the recording core 2 also comes into contact with the recording medium 1 at high speed. As a result, a large impact force acts on the recording core 2, which may cause the recording core 2 to break, or both ends of the recording core 2 to be chipped, resulting in core jamming or deterioration of image quality. In order to solve this problem, it is conceivable to lower the tailstock 4 at a low speed, but this would require more time and would impair high-speed recording performance.
本発明は、これらの欠点を解決するものであって、芯押
棒を移動させる駆動機構として、芯押棒が記録芯と接触
する寸前までは比較的高速で降下させその後は比較的低
速で降下させる駆動機構および記録芯と接触後の芯押棒
の押圧力を芯押棒の降下距離に応じて増加させる駆動機
構のうちの少なくともいずれか一方の駆動機構を用いる
ことを特徴とする。The present invention solves these drawbacks, and uses a drive mechanism for moving the tailstock rod, which lowers the tailstock rod at a relatively high speed until it almost contacts the recording core, and then lowers it at a relatively low speed. The present invention is characterized in that at least one of the mechanism and a drive mechanism that increases the pressing force of the tailstock after contacting the recording core in accordance with the descending distance of the tailstock is used.
以下、図面を用い、実施例について説明する。Examples will be described below with reference to the drawings.
第2図は、本発明の一実施例を示す要部の構成説明図で
あって、第1図と同等部分には同一符号を伺している。FIG. 2 is an explanatory diagram of the configuration of essential parts showing one embodiment of the present invention, and parts equivalent to those in FIG. 1 are denoted by the same reference numerals.
第2図において、5はアーム、6゜7はばね、8,9は
プーリ、1oは繰糸、11はモータである。芯押棒4の
一端にはストッパ41が固着され、途中部にもストッパ
42が固着されている。In FIG. 2, 5 is an arm, 6°7 is a spring, 8 and 9 are pulleys, 1o is a reeling line, and 11 is a motor. A stopper 41 is fixed to one end of the tailstock 4, and a stopper 42 is also fixed to an intermediate portion.
アーム5は、一端がこれらストッパ41,421Sl’
lに移動可能に係合され、他端が繰糸10に固着されて
いる。ばね6,7は、ストッパ42とアーム5との間の
芯押棒4に取り付けられている。ここで、ばね6のばね
係数t−に1、ばね7のばね係数′4r:に2、ブツシ
ュ31による記録芯2の保持力をNとすると、こ(3)
れらの大きさかに1<k2となり、さらに、N=に1・
t(tはばね6の圧縮変位!:)となるように設定され
ている。また、ばね6は、ばね7よりも長く形成されて
いる。The arm 5 has one end connected to these stoppers 41, 421Sl'
1, and the other end is fixed to the reeling yarn 10. The springs 6 and 7 are attached to the tailstock 4 between the stopper 42 and the arm 5. Here, if the spring coefficient t- of the spring 6 is 1, the spring coefficient '4r of the spring 7 is 2, and the holding force of the recording core 2 by the bushing 31 is N, then (3) these magnitudes are 1< k2, and furthermore, N=1・
t (t is the compression displacement of the spring 6!). Further, the spring 6 is formed longer than the spring 7.
このように構成された装置の動作について説明する。The operation of the device configured in this way will be explained.
記録にあたっては、芯ホルダ6を記録体1の表面近傍の
所定の位置まで降下させるとともに、芯押棒4をアーム
5を移動させることによって降下させる。第3図は、第
2図におけるアーム5の降下距離りと芯押棒4により記
録芯2に加えられる押圧力Pとの関係の一例を示す特性
図であって、横軸には降下距離りをとり縦軸には押圧力
Pをとっている。芯押棒4が記録芯2に接触するまでの
間は記録芯2に押圧力Pは加わらない。芯押棒4が記録
芯2と接触する距離L1までアーム5が降下すると、ま
ずはね6のばね定数に工に比例した押圧力が記録芯2に
加わる。そして、アーム5が所定it降下してばね6が
所定量を圧縮されてN〈k工・tになると、記録芯2は
記録体1に向かって(4)
降下を始め、記録体1と接触する。さらにアーム5を降
下させると距離L2においてばね7のばね定数に2も加
算されることKなり、押圧力Pは汀ね定数に□とに2の
和に比例して増加する。モータ11は、押圧力Pが所定
の大きさPsK達すると、その大きさを維持するように
回転制御される。一方、記録をしない場合には、従来と
同様に、芯押棒4および芯ホルダ3を所定の位置まで上
昇させる。During recording, the lead holder 6 is lowered to a predetermined position near the surface of the recording medium 1, and the tail rod 4 is lowered by moving the arm 5. FIG. 3 is a characteristic diagram showing an example of the relationship between the descending distance of the arm 5 in FIG. 2 and the pressing force P applied to the recording core 2 by the tailstock 4, with the horizontal axis representing the descending distance. The vertical axis shows the pressing force P. No pressing force P is applied to the recording core 2 until the tailstock 4 comes into contact with the recording core 2. When the arm 5 descends to a distance L1 where the tailstock 4 contacts the recording core 2, a pressing force proportional to the spring constant of the spring 6 is applied to the recording core 2. Then, when the arm 5 descends by a predetermined distance and the spring 6 is compressed by a predetermined amount to reach N<k-t, the recording core 2 begins to descend toward the recording medium 1 (4) and comes into contact with the recording medium 1. do. Further, when the arm 5 is lowered, 2 is added to the spring constant of the spring 7 at the distance L2, and the pressing force P increases in proportion to the sum of the spring constant and 2. When the pressing force P reaches a predetermined magnitude PsK, the motor 11 is rotationally controlled to maintain that magnitude. On the other hand, when recording is not to be performed, the tailstock rod 4 and the core holder 3 are raised to a predetermined position as in the conventional case.
このように構成することKより、芯押棒4と記録芯2お
よび記録芯2と記録体1との接触時における衝撃力は、
従来の構成と同速度でアーム5を降下させる場合に比べ
て小さくなり、記録芯2の破損や折損を大幅に減少させ
ることができる。Due to this configuration, the impact force when the tailstock 4 and the recording core 2 and the recording core 2 and the recording medium 1 contact each other is as follows.
This is smaller than when the arm 5 is lowered at the same speed as in the conventional configuration, and damage and breakage of the recording core 2 can be significantly reduced.
なお、第2図では、アーム5を剛体で構成し、ばね定数
の異なる線形特性を有する2個のばね6゜7を用いて押
圧力Pをアーム5の降下距離に応じて増加させる例につ
いて説明したが、ばね6,7の代わりに所定の非線形特
性を有する1個のばねを用いても、所望の押圧力Pの変
化特性を得ることができる。まだ、アーム5を、非線形
特性を有する板ばねで構成してもよい。この場合、アー
ム5と芯押棒4とは、芯押棒4の移動方向に沿っては固
定されアーム5の長手方向に沿っては摺動可能なように
係合しておく。このように構成することにより、第5図
におけるばね6,7を省略することもできる。In addition, in FIG. 2, an example is explained in which the arm 5 is made of a rigid body and the pressing force P is increased according to the descending distance of the arm 5 using two springs 6°7 having different spring constants and linear characteristics. However, even if one spring having predetermined nonlinear characteristics is used instead of the springs 6 and 7, the desired change characteristics of the pressing force P can be obtained. However, the arm 5 may also be composed of a leaf spring with non-linear properties. In this case, the arm 5 and the tailstock rod 4 are engaged so that they are fixed along the moving direction of the tailstock rod 4 and slidable along the longitudinal direction of the arm 5 . With this configuration, the springs 6 and 7 in FIG. 5 can be omitted.
第4図は、本発明の他の実施例を示す要部の構成説明図
であって、第2図と同等部分には同一符号を付している
。第4図において、12はマイクロプロセッサであって
、記録芯2と芯押棒4との距離に応じてモーター1の回
転速度を制御する機能を有している。第5図は、第4図
の装置の記録時における芯押棒4の降下距離りと芯押棒
4の降下速度Vとの関係の一例を示す特性図であって、
横軸には降下距離りをとり縦軸には降下速度Vをとって
いる。芯押棒4は、記録芯2と接触する寸前の距PII
L1までは比較的高速度V工で降下するが、その後は比
較的低速度Vで降下する。そして、距離L2まで降下す
ることにより芯押棒4は記録芯2と接触し、距離L3ま
で降下することにより記録芯2は記録体1と接触する。FIG. 4 is an explanatory diagram of the configuration of essential parts showing another embodiment of the present invention, in which parts equivalent to those in FIG. 2 are given the same reference numerals. In FIG. 4, a microprocessor 12 has a function of controlling the rotational speed of the motor 1 according to the distance between the recording core 2 and the tailstock 4. FIG. 5 is a characteristic diagram showing an example of the relationship between the descending distance of the tailstock 4 and the descending speed V of the tailstock 4 during recording with the apparatus shown in FIG.
The horizontal axis shows the descent distance, and the vertical axis shows the descent speed V. The tailstock 4 has a distance PII just before it contacts the recording core 2.
It descends at a relatively high speed V until L1, but after that it descends at a relatively low speed V. Then, the tailstock 4 comes into contact with the recording core 2 by descending to a distance L2, and the recording core 2 comes into contact with the recording medium 1 by descending to a distance L3.
このようにして記録芯2が記録体1と接触した状態で所
定の押圧力が記録芯2に加えられるようにモータ11の
回転は制御される。このような降下距離りと降下速度V
との関連制御は、マイクロプロセッサ12のメモリに記
録芯2の長さ、芯ホルダ3の初期位置、アーム5の初期
位置等の情報を一時記憶しておくことにより、行うこと
ができる。In this manner, the rotation of the motor 11 is controlled so that a predetermined pressing force is applied to the recording core 2 while the recording core 2 is in contact with the recording medium 1 . Such descent distance and descent speed V
Related control can be performed by temporarily storing information such as the length of the recording core 2, the initial position of the core holder 3, and the initial position of the arm 5 in the memory of the microprocessor 12.
このように構成することにより、芯押棒4と記録芯2お
よび記録芯2と記録体1との接触時における衝撃力を極
めて小さくすることができる。なお、芯押棒4が低速移
動する時間は比較的短いので、高速記録性が大幅に損わ
れることはない。With this configuration, the impact force when the tailstock 4 and the recording core 2 and the recording core 2 and the recording body 1 come into contact can be made extremely small. Incidentally, since the time during which the tailstock rod 4 moves at low speed is relatively short, high-speed recording performance is not significantly impaired.
以上説明したように、本発明によれば、記録芯に対する
衝撃力の小さな記録ヘッドが実現でき、電子計算機の出
力信号によって駆動されるプロッタの記録ヘッド等に好
適である。As described above, according to the present invention, a recording head with small impact force on the recording core can be realized, and is suitable for a recording head of a plotter driven by an output signal of an electronic computer.
第1図は従来の装置の構成例を示す構成説明図、第2図
は本発明の一実施例を示す構成説明図、第(7)
5図は第2図の動作を説明するだめの特性例図、第4図
は本発明の他の実施例を示す構成説明図、第5図は第4
図の動作を説明するだめの特性例図である。
1・・・記録体、2・・・記録芯、3・・・芯ボルダ、
4・・・芯押棒、5・・・アーム、6.7・・・ばね、
8,9・・・プーリ、10・・・繰糸、11・・・モー
タ、12・・・マイクロプロセッサ。
(8)
第1図
第2図
篇3図FIG. 1 is a configuration explanatory diagram showing an example of the configuration of a conventional device, FIG. 2 is a configuration explanatory diagram showing an embodiment of the present invention, and FIG. Example diagram, FIG. 4 is a configuration explanatory diagram showing another embodiment of the present invention, and FIG.
FIG. 3 is a characteristic example diagram for explaining the operation of the diagram. 1... Recording body, 2... Recording core, 3... Core boulder,
4...Tailstock, 5...Arm, 6.7...Spring,
8, 9... Pulley, 10... Yarn reeling, 11... Motor, 12... Microprocessor. (8) Figure 1 Figure 2 Part 3
Claims (1)
録芯が軸方向に沿って移動可能に挿入されかつ保持され
た芯ホルダと、記録芯の一端を押圧するように芯ホルダ
内に軸方向に沿って移動可能に挿入された芯押棒と、芯
押棒を記録芯と接触する寸前までは比較的高速で降下さ
せその後は比較的低速で降下させる駆動機構および記録
芯と接触後の芯押棒の押圧力を芯押棒の降下距離に応じ
て増加させる駆動機構のうちの少なくともいずれか一方
の駆動機構とからなる記録ヘッド。A recording medium, a recording core that performs drawing and recording on the surface of the recording medium, a core holder into which the recording core is movably inserted and held in the axial direction, and a core holder that presses one end of the recording core. A tailstock rod is inserted so as to be movable along the axial direction, a drive mechanism that lowers the tailstock rod at a relatively high speed until it comes into contact with the recording core and then lowers it at a relatively low speed, and a drive mechanism that lowers the tailstock rod at a relatively low speed until it comes into contact with the recording core. A recording head comprising at least one of the drive mechanisms that increases the pressing force of the tailstock bar in accordance with the descending distance of the tailstock bar.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10104781A JPS581561A (en) | 1981-06-29 | 1981-06-29 | Recording head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10104781A JPS581561A (en) | 1981-06-29 | 1981-06-29 | Recording head |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS581561A true JPS581561A (en) | 1983-01-06 |
JPH0125719B2 JPH0125719B2 (en) | 1989-05-18 |
Family
ID=14290207
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10104781A Granted JPS581561A (en) | 1981-06-29 | 1981-06-29 | Recording head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS581561A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6091491U (en) * | 1983-11-28 | 1985-06-22 | 武藤工業株式会社 | Pen holder fixing device in automatic drawing machine |
JPS60239298A (en) * | 1984-05-14 | 1985-11-28 | 松下電器産業株式会社 | Recording device |
JPS61284497A (en) * | 1985-06-11 | 1986-12-15 | 日立精工株式会社 | Pen vertical movement controller for automatic drawing machine |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51150432A (en) * | 1975-06-17 | 1976-12-24 | Seiko Instr & Electronics | Device for pencil of automatic drafting machine |
JPS5337711U (en) * | 1976-09-08 | 1978-04-03 | ||
JPS55156097A (en) * | 1979-05-25 | 1980-12-04 | Hitachi Seiko Kk | Controller for pen vertically driving |
-
1981
- 1981-06-29 JP JP10104781A patent/JPS581561A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51150432A (en) * | 1975-06-17 | 1976-12-24 | Seiko Instr & Electronics | Device for pencil of automatic drafting machine |
JPS5337711U (en) * | 1976-09-08 | 1978-04-03 | ||
JPS55156097A (en) * | 1979-05-25 | 1980-12-04 | Hitachi Seiko Kk | Controller for pen vertically driving |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6091491U (en) * | 1983-11-28 | 1985-06-22 | 武藤工業株式会社 | Pen holder fixing device in automatic drawing machine |
JPH0219279Y2 (en) * | 1983-11-28 | 1990-05-28 | ||
JPS60239298A (en) * | 1984-05-14 | 1985-11-28 | 松下電器産業株式会社 | Recording device |
JPS61284497A (en) * | 1985-06-11 | 1986-12-15 | 日立精工株式会社 | Pen vertical movement controller for automatic drawing machine |
Also Published As
Publication number | Publication date |
---|---|
JPH0125719B2 (en) | 1989-05-18 |
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