JPH0662038B2 - Balance device for moving objects in drafting machines, digitizers, etc. - Google Patents
Balance device for moving objects in drafting machines, digitizers, etc.Info
- Publication number
- JPH0662038B2 JPH0662038B2 JP3727687A JP3727687A JPH0662038B2 JP H0662038 B2 JPH0662038 B2 JP H0662038B2 JP 3727687 A JP3727687 A JP 3727687A JP 3727687 A JP3727687 A JP 3727687A JP H0662038 B2 JPH0662038 B2 JP H0662038B2
- Authority
- JP
- Japan
- Prior art keywords
- moving body
- digitizer
- tension spring
- spring member
- tension
- 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 - Lifetime
Links
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、製図機、線引機、デジタイザ等における傾斜
した案内レールに沿ってスケール、線引具、座標読取具
等を移動させる移動体の自重を軽減し、軽快に移動し得
るようにした移動体のバランス装置に関する。Description: TECHNICAL FIELD The present invention relates to the self-weight of a moving body that moves a scale, a drawing tool, a coordinate reading tool, etc. along an inclined guide rail in a drafting machine, a drawing machine, a digitizer, etc. The present invention relates to a balance device for a moving body, which is capable of lightening movement.
従来の技術 従来の技術としては、移動体の案内レールにバランスウ
エイトの案内レールを並設し、移動体とバランスウエイ
トとをプーリを介してロープで連結し、相互に自重を相
殺して連動するようにしたものが知られている。2. Description of the Related Art As a conventional technique, a guide rail of a balance weight is installed in parallel with a guide rail of a moving body, and the moving body and the balance weight are connected by a rope via a pulley so that the weights of the moving body and the balance weight are offset from each other. It is known to do so.
発明が解決しようとする問題点 従って、従来技術では、移動体の案内レールの外に、バ
ランスウエイト用の案内レールを必要とし、案内レール
の構造を大型にする問題があり、また、バランスウエイ
トとその案内レールはそれだけ装置の重量を増大させる
存在となる問題があり、且つ、案内レールの傾斜が水平
に近づくとバランスウエイトが移動体の自重を倍にして
その存在が移動体の円滑な操作を損なう問題があった。DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention Therefore, in the prior art, there is a problem in that a guide rail for a balance weight is required in addition to the guide rail of the moving body, and the structure of the guide rail becomes large. The guide rail has a problem that it increases the weight of the device, and when the inclination of the guide rail approaches horizontal, the balance weight doubles the own weight of the moving body, and the existence thereof makes the moving body operate smoothly. There was a damaging problem.
問題点を解決するための手段 そこで本発明は、スケール、デジタイザ等の移動体を案
内する案内レールに、移動体の移動に伴って回転する第
1の回転部材を設けると共に、第2の回転部材に回転量
の増減に伴って引張弾力が増減する引張ばね部材を設
け、前記第1と第2の回転部材の間に、前記引張ばね部
材のばね弾力を均等化するトルク変換手段を設けてなる
製図機、デジタイザ等における移動体のバランス装置に
おいて、前記トルク変換手段が前記第1と第2の回転部
材の間に設けた、回転に伴って相互の回転径の比率が前
記引張部材の引張弾力の増減に比例して変化するように
巻掛けたロープによって連動する第1と第2のトルク変
換プーリからなることを特徴とする製図機、デジタイザ
等における移動体のバランス装置を提供しようとするも
のである。Therefore, according to the present invention, a guide rail that guides a moving body such as a scale or a digitizer is provided with a first rotating member that rotates as the moving body moves, and a second rotating member. Is provided with a tension spring member whose tension elastic force increases and decreases as the amount of rotation increases and decreases, and a torque conversion means for equalizing the spring elasticity of the tension spring member is provided between the first and second rotating members. In a balancing device for a moving body in a drafting machine, digitizer, etc., the torque conversion means is provided between the first and second rotating members, and a ratio of mutual rotating diameters accompanying rotation is a tensile elastic force of the tension member. A balance device for a moving body in a drafting machine, digitizer, etc., characterized by comprising first and second torque conversion pulleys interlocked by a rope wound so as to change in proportion to the increase and decrease of It is what
また、本発明は、スケール、デジタイザ等の移動体を案
内する案内レールに、移動体の移動に伴って回転する第
1の回転部材を設けると共に、第2の回転部材に回転量
の増減に伴って引張弾力が増減する引張ばね部材を設
け、前記第1と第2の回転部材の間に、前記引張ばね部
材のばね弾力を均等化するトルク変換手段を設けてなる
製図機、デジタイザ等における移動体のバランス装置に
おいて、前記引張ばね部材の一端側を第2の回転部材に
作用させ、他端側を案内レールの側壁部に回転位置決め
自在に設けたばねケースに固定し、該ばねケースを回転
位置決め調整することによって前記引張ばね部材のばね
弾力を調整自在に構成したことを特徴とする製図機、デ
ジタイザ等における移動体のバランス装置を提供しよう
とするものである。Further, according to the present invention, a guide rail that guides a moving body such as a scale or a digitizer is provided with a first rotating member that rotates as the moving body moves, and a second rotating member increases or decreases as the amount of rotation increases or decreases. A tension spring member that increases or decreases the tensile elasticity is provided, and a torque conversion unit that equalizes the spring elasticity of the tension spring member is provided between the first and second rotating members. Movement in a drafting machine, digitizer, or the like. In a body balancing apparatus, one end side of the tension spring member is made to act on a second rotating member, and the other end side is fixed to a spring case rotatably positioned on a side wall portion of a guide rail, and the spring case is rotationally positioned. An object of the present invention is to provide a balancer for a moving body in a drafting machine, digitizer, etc., characterized in that the spring resilience of the tension spring member is adjustable by adjustment.
作用 上記の構成からなる本発明に係る製図機、デジタイザ等
における移動体のバランス装置によれば、スケール、デ
ジタイザ等の移動体を案内する案内レールに沿って移動
体を移動すると、移動体の移動に伴って第1と第2の回
転部材は回転し、第2の回転部材に設けた引張ばね部材
の引張弾力は該回転部材の回転量の増減に伴って増減す
ることとなるが、このとき、前記第1と第2の回転部材
の間に設けたトルク変換手段によって前記引張ばね部材
のばね弾力は均等化されるから、最初に移動体が案内レ
ールの任意の位置で前記引張ばね部材のばね弾力で吊合
うようにバランスさせておけば、移動体を任意の位置に
自由に移動させてもバランス状態は維持されることとな
る。Effect According to the balancer device for a moving body in the drafting machine, digitizer, etc. according to the present invention having the above-mentioned configuration, when the moving body is moved along the guide rail for guiding the moving body such as the scale and the digitizer, the moving body moves. As a result, the first and second rotating members rotate, and the tensile elastic force of the tension spring member provided on the second rotating member increases or decreases as the amount of rotation of the rotating member increases or decreases. Since the spring resilience of the tension spring member is equalized by the torque converting means provided between the first and second rotating members, the moving body first moves the tension spring member at an arbitrary position on the guide rail. If balanced so as to be suspended by spring elasticity, the balanced state will be maintained even if the moving body is freely moved to any position.
即ち、特許請求の範囲第1項に記載の本発明に係るトル
ク変換手段によれば、前記第1と第2の回転部材の間
に、回転に伴って相互の回転径が変化するように巻掛け
たロープによって連動する第1と第2のトルク変換プー
リの回転径をR1,R2とし、移動体による第1の回転
部材に係るトルクをT1、引張ばね部材のトルクをT2
とすると、前記第1、第2のトルク変換プーリ間のロー
プの張力がFで吊合っていれば、F=T1/R1=RT
2/R2であるから、T2=(R2/R1)×T1とな
り、T1が移動体の引張力によるトルクで一定であるか
ら、引張ばね部材の引張力T2が移動体の移動にともな
って増減するのに比例して、ロープの係合するトルク変
換プーリの回転半径のR2/R1の比率を可変にすれ
ば、前記引張ばね部材のばね弾力を前記第1及び第2の
回転部材の回転量の増減に対して均等化することができ
る。That is, according to the torque converting means of the present invention as set forth in claim 1, the torque converting means is wound between the first and second rotating members such that the mutual rotating diameters change with rotation. Let R1 and R2 be the rotation diameters of the first and second torque conversion pulleys that are interlocked by the ropes that are hung, the torque of the first rotating member by the moving body is T1, and the torque of the tension spring member is T2.
Then, if the tension of the rope between the first and second torque conversion pulleys is F, then F = T1 / R1 = RT.
Since it is 2 / R2, T2 = (R2 / R1) × T1. Since T1 is a constant torque due to the tensile force of the moving body, the tensile force T2 of the tension spring member increases or decreases as the moving body moves. If the ratio of R2 / R1 of the radius of gyration of the torque conversion pulley with which the rope engages is made variable in proportion to, the spring resilience of the tension spring member becomes equal to that of the rotation amount of the first and second rotation members. It is possible to equalize the increase and decrease.
また、特許請求の範囲第2項に記載の本発明に係るバラ
ンス装置によれば、案内レールの側壁部に回転位置決め
自在に設けたばねケースを回転位置決め調整することに
よって前記引張ばね部材のばね弾力を調整自在にするこ
とができるから、図板の傾斜が垂直に近いほど移動体に
よる引張トルクが増大し図板の傾斜が水平に近いほど移
動体によるトルクが減少するのに対応して、引張ばね弾
力の強度を簡単に調整することができる。According to the balance device of the present invention as set forth in claim 2, the spring elasticity of the tension spring member is adjusted by rotationally adjusting the spring case provided on the side wall of the guide rail so as to be rotationally positionable. Since it can be freely adjusted, the tension torque by the moving body increases as the inclination of the drawing plate becomes closer to vertical, and the torque by the moving body decreases as the inclination of the drawing plate becomes closer to horizontal. The strength of elasticity can be easily adjusted.
実施例 以下図示する実施例により本発明装置を詳細に説明する
と、第1図において、1は傾斜する図板で、2はその上
縁辺部に沿って固定した横レールで、3は横レール2に
沿って左右方向に移動する横移動体に上端部を連結され
て、図板上でスケール等を平行移動させる移動体を上下
方向に案内する縦レールであり、前記横移動体と縦レー
ル3とはジョイントボックス4で連結されており、これ
らの構造は製図機等において従来公知のものである。5
はジョイントボックス4と一体な構造で縦レール3の上
端部に設けたトルク変換手段の取付枠部で、第1の回転
部材6がその支軸7と一体に回転自在に設けてある。実
施例の場合、回転部材6にはワイヤ8が巻回してあり、
ワイヤ8の端部8aに連結した図では省略した移動体の
移動に伴って回転するように設けてある。また、支軸7
には、トルク変換手段を構成する一方の円錐状のトルク
変換プーリ9が設けてあり、第2の回転部材10に設け
た他方の円錐状のトルク変換プーリ11と相対して回転
すべくロープ12で連結してある。ロープ12は第2の
トルク変換プーリ12の大半径部に一端部12aを固定
して、小半径部に向かって順次巻回して最小半径部か
ら、相対する第1のトルク変換プーリ9の大半径部に渡
して他端12bを固定してある。第2の回転部材10は
取付枠部5の側方に突出して設けてあり、その突出部に
引張バネ部材13が設けてある。引張バネ部材13は、
ゼンマイばねからなり、その外ばね片がばねケース14
に固定され、内ばね片が回転部材10に固定されてお
り、前記ワイヤ8の引き出し方向の荷重に対して引張弾
力を付与するように設けてある。実施例の場合、ばねケ
ース14の外側には回転部材10を中心とする回転円周
に沿ってラチエット式のテーパ爪15が所定間隔で設け
てある一方、該テーパ爪15の回転域に、突出方向のば
ね17の弾力を付与したピン16が相対して設けてあ
り、ばねケース14を所定方向に回転して固定すること
によって、引張ばね部材13のばね弾力の強弱を可変に
調整できるように構成してある。18はピン16の操作
レバーである。EXAMPLE The apparatus of the present invention will be described in detail below with reference to the example shown in FIG. 1. In FIG. 1, 1 is a sloping drawing board, 2 is a horizontal rail fixed along its upper edge, and 3 is a horizontal rail 2. Is a vertical rail whose upper end is connected to a horizontal moving body which moves in the left-right direction along the vertical guide for vertically moving the moving body which translates a scale or the like on the drawing board. Are connected to each other by a joint box 4, and these structures are conventionally known in a drafting machine or the like. 5
Is a mounting frame portion of the torque converting means provided on the upper end portion of the vertical rail 3 in a structure integrated with the joint box 4, and the first rotating member 6 is provided rotatably integrally with the supporting shaft 7. In the case of the embodiment, the wire 8 is wound around the rotating member 6,
It is provided so as to rotate with the movement of a moving body (not shown in the figure) connected to the end 8a of the wire 8. Also, the support shaft 7
Is provided with one conical torque conversion pulley 9 forming the torque conversion means, and the rope 12 is rotated so as to rotate relative to the other conical torque conversion pulley 11 provided on the second rotating member 10. It is connected with. The rope 12 has one end portion 12a fixed to the large radius portion of the second torque conversion pulley 12 and is sequentially wound toward the small radius portion to be wound from the minimum radius portion to the large radius of the opposing first torque conversion pulley 9. The other end 12b is fixed by passing it to the section. The second rotating member 10 is provided so as to project laterally from the mounting frame portion 5, and a tension spring member 13 is provided at the projecting portion. The tension spring member 13 is
It consists of a spring and its outer spring piece is the spring case 14.
The inner spring piece is fixed to the rotating member 10, and is provided so as to apply tensile elasticity to the load in the pulling direction of the wire 8. In the case of the embodiment, the ratchet type taper claws 15 are provided on the outer side of the spring case 14 along the circumference of rotation about the rotary member 10 at predetermined intervals, while the taper claws 15 project in the rotation range. The pins 16 to which the elastic force of the spring 17 in the direction is provided are provided opposite to each other, and by rotating and fixing the spring case 14 in a predetermined direction, the strength of the spring elastic force of the tension spring member 13 can be variably adjusted. Configured. Reference numeral 18 is an operation lever of the pin 16.
上記の構成において、ばねケース14を所定の方向に回
転させると、ばねケース14に外ばね片のみ固定された
引張ばね部材13は、ケース14の回転に対応した引張
ばね弾力を蓄えて回転部材10を巻取方向に引っ張るこ
ととなり、ワイヤ8に加わる移動体の荷重と釣り合う状
態に設定することができる。そこで、移動体を、例え
ば、第1図示の状態で、下方向に移動すると、第1の回
転部材6の回転に伴って、第1のトルク変換プーリ9が
回転し、ロープ12により第2のトルク変換プーリ11
が第2の回転部材10と共に回転し、引張ばね部材13
は巻き込み方向に引っ張られ、その引っ張り距離に対応
してばね弾力を増大させることとなる。このとき、移動
体の移動開始のとき、第1のトルク変換プーリ9の巻取
り径は最大で、第2のトルク変換プーリ11の巻戻し径
は最小であり、従って、ワイヤ8に加わる回転トルクは
最大の状態であるが、移動体の移動に伴って、プーリ9
の巻取り径は減少し、プーリ11の巻戻し径は増大する
から、両プーリ9,11のロープ12巻取り巻戻し径に
比例して、ワイヤ8の引き出し方向へのトルクは減少す
ることとなる。従って、前記引張ばね部材13のワイヤ
8の引き出しに伴い増大する引張ばね弾力と、第1,第
2のトルク変換プーリ9,11のロープ巻取り巻戻し径
の比の変化に応じて減少するトルクを対応させて設定し
ておけば、ワイヤ8に対する引張ばね部材13による引
張ばね弾力は急激に増減することなく所定のバランス範
囲に維持することができる。In the above configuration, when the spring case 14 is rotated in a predetermined direction, the tension spring member 13 in which only the outer spring piece is fixed to the spring case 14 stores the tension spring elastic force corresponding to the rotation of the case 14 to rotate the rotary member 10. Is pulled in the winding direction, and the load of the moving body applied to the wire 8 can be set in a balanced state. Therefore, when the moving body is moved downward in the first illustrated state, for example, the first torque conversion pulley 9 rotates with the rotation of the first rotating member 6, and the rope 12 causes the second torque converting pulley 9 to rotate. Torque conversion pulley 11
Rotates with the second rotating member 10 and the tension spring member 13
Is pulled in the winding direction, and the spring resilience is increased corresponding to the pulling distance. At this time, when the movement of the moving body is started, the winding diameter of the first torque conversion pulley 9 is the maximum and the rewind diameter of the second torque conversion pulley 11 is the minimum. Is in the maximum state, but the pulley 9
Since the winding diameter of the wire decreases and the winding diameter of the pulley 11 increases, the torque in the pulling direction of the wire 8 decreases in proportion to the winding diameter of the rope 12 of both pulleys 9 and 11. Become. Therefore, the torque that decreases in accordance with the change in the ratio of the tension spring elasticity that increases with the pulling out of the wire 8 of the tension spring member 13 and the rope winding and rewinding diameter of the first and second torque conversion pulleys 9 and 11. If the values are set correspondingly, the tension spring elastic force of the tension spring member 13 with respect to the wire 8 can be maintained within a predetermined balance range without rapidly increasing or decreasing.
第1,第2のトルク変換プーリ9,11は、図の実施例
では、分かり易く何れも円錐体状に示してあるが、引張
ばね部材13の引張弾力を変化率に対応して、巻取り巻
戻し径を自由に設定することができることは勿論、ワイ
ヤ8の第1の回転部材6から引張ばね部材13の引張ば
ね弾力の伝達機構内に、伝達率を変化させる従前公知の
倍力機構、減力機構やクラッチ機構等を介在させること
も可能である。In the illustrated embodiment, the first and second torque conversion pulleys 9 and 11 are each shown in a conical shape for easy understanding, but the tension elastic force of the tension spring member 13 is wound according to the change rate. The unwinding diameter can be freely set, and of course, a conventionally known booster mechanism for changing the transmissibility in the transmission mechanism of the tension spring elasticity of the tension spring member 13 from the first rotating member 6 of the wire 8, It is also possible to interpose a reduction mechanism and a clutch mechanism.
効果 以上の通り、本発明に係る製図機、デジタイザ等におけ
る移動体のバランス装置によれば、スケール、デジタイ
ザ等の移動体を案内する案内レールに、移動体の移動に
伴って回転する第1の回転部材を設けると共に、第2の
回転部材に回転量の増減に伴って引張弾力が増減する引
張ばね部材を設け、前記第1と第2の回転部材の間に、
前記引張ばね部材のばね弾力を均等化するトルク変換手
段を設けてなる製図機、デジタイザ等における移動体の
バランス装置において、前記トルク変換手段が前記第1
と第2の回転部材の間に設けた、回転に伴って相互の回
転径の比率が前記引張部材の引張弾力の増減に比例して
変化するように巻掛けたロープによって連動する第1と
第2のトルク変換プーリからなる構成を有するから、ス
ケール、デジタイザ等の移動体を案内する案内レールに
沿って移動体を移動すると、移動体の移動に伴って第1
と第2の回転部材は回転し、第2の回転部材に設けた引
張ばね部材の引張弾力は該回転部材の回転量の増減に伴
って増減することとなるが、このとき、前記第1と第2
の回転部材の間に設けたトルク変換手段によって前記引
張ばね部材のばね弾力は均等化されるから、最初に移動
体が案内レールの任意の位置で前記引張ばね部材のばね
弾力で吊合うようにバランスさせておけば、移動体を任
意の位置に自由に移動させてもバランス状態は維持され
る効果があり、且つ、第1と第2の回転部材の間に設け
た、巻掛けたロープによって連動する第1と第2のトル
ク変換プーリの回転径の比率を、引張部材の引張弾力の
増減に比例して変化するように構成することによって、
種々の引張弾力特性を有する引張ばね部材に対応したト
ルク変換手段を提供する効果がある。As described above, according to the balancer device for a moving body in the drafting machine, digitizer, etc. according to the present invention, the guide rail for guiding the moving body such as the scale, the digitizer, etc., is rotated by the first moving body. While providing the rotating member, the second rotating member is provided with a tension spring member whose tensile elasticity increases and decreases as the amount of rotation increases and decreases, and between the first and second rotating members,
In a balancer for a moving body in a drafting machine, digitizer or the like, which is provided with a torque converting means for equalizing the spring elasticity of the tension spring member, the torque converting means is the first device.
And a first rotating member provided between the second rotating member and interlocked with each other by a rope wound so that a ratio of mutual rotating diameters in accordance with the rotation changes in proportion to an increase or decrease in tensile elasticity of the tensile member. Since it has a configuration including two torque conversion pulleys, when the moving body is moved along a guide rail that guides the moving body such as a scale and a digitizer, the first moving body moves along with the movement of the moving body.
The second rotating member rotates, and the tensile elastic force of the tension spring member provided on the second rotating member increases / decreases as the amount of rotation of the rotating member increases / decreases. Second
Since the spring elastic force of the tension spring member is equalized by the torque converting means provided between the rotating members, first, the moving body is suspended by the spring elastic force of the tension spring member at an arbitrary position of the guide rail. If balanced, it has the effect of maintaining a balanced state even if the moving body is freely moved to any position, and by means of a wrapped rope provided between the first and second rotating members. By configuring the ratio of the rotation diameters of the interlocking first and second torque conversion pulleys so as to change in proportion to the increase or decrease in the tensile elasticity of the tension member,
There is an effect of providing a torque converting means corresponding to a tension spring member having various tensile elasticity characteristics.
また、本発明は、案内レールの側壁部に回転位置決め自
在に設けたばねケースを回転位置決め調整することによ
って前記引張ばね部材のばね弾力の強度を調整自在にす
ることができる構成を有するから、図板の傾斜が垂直に
近いほど移動体による引張トルクが最大限に増大し図板
の傾斜が水平に近いほど移動体による引張トルクがゼロ
近くに減少するのに対応して、引張ばね弾力の強度を、
案内レールの側壁部に設けたばねケースを回転操作する
だけで簡単に強弱調整することができ、製図作業を能率
よく行うことができる効果がある。Further, according to the present invention, the strength of the spring resilience of the tension spring member can be freely adjusted by adjusting the rotational positioning of the spring case that is rotatably positioned on the side wall of the guide rail. The tension torque by the moving body is maximized as the inclination of is closer to vertical, and the tensile torque by the moving body is reduced to near zero as the inclination of the drawing board is closer to horizontal. ,
The strength can be easily adjusted simply by rotating the spring case provided on the side wall of the guide rail, and the drawing work can be performed efficiently.
第1図は本発明装置の一実施例の要部を示す一部横断平
面図、第2図はその一部縦断側面図、第3図はその概略
背面図である。 3……縦レール 4……ジョイントボックス 5……トルク変換手段の取付枠 6……第1の回転部材 8……移動体と連動するワイヤ 9……トルク変換手段となるトルク変換プーリ 10……第2の回転部材 11……トルク変換手段となるトルク変換プーリ 12……トルク変換手段となるロープ 13……引張ばね部材 14……引張ばね部材のケース 15……テーパ爪 16……ピンFIG. 1 is a partially cross-sectional plan view showing an essential part of an embodiment of the device of the present invention, FIG. 2 is a partially longitudinal side view thereof, and FIG. 3 is a schematic rear view thereof. 3 ... Vertical rail 4 ... Joint box 5 ... Torque converting means mounting frame 6 ... First rotating member 8 ... Wire interlocking with moving body 9 ... Torque converting pulley 10 serving as torque converting means Second rotating member 11 ... Torque converting pulley 12 serving as torque converting means 12 ... Rope serving as torque converting means 13 ... Tension spring member 14 ... Case of tension spring member 15 ... Tapered pawl 16 ... Pin
Claims (6)
る案内レールに、移動体の移動に伴って回転する第1の
回転部材を設けると共に、第2の回転部材に回転量の増
減に伴って引張弾力が増減する引張ばね部材を設け、前
記第1と第2の回転部材の間に、前記引張ばね部材のば
ね弾力を均等化するトルク変換手段を設けてなる製図
機、デジタイザ等における移動体のバランス装置におい
て、前記トルク変換手段が前記第1と第2の回転部材の
間に設けた、回転に伴って相互の回転径の比率が前記引
張部材の引張弾力の増減に比例して変化するように巻掛
けたロープによって連動する第1と第2のトルク変換プ
ーリからなることを特徴とする製図機、デジタイザ等に
おける移動体のバランス装置。1. A guide rail for guiding a moving body such as a scale or a digitizer is provided with a first rotating member that rotates with the movement of the moving body, and a second rotating member is provided with an increase or decrease in the amount of rotation. A moving body in a drafting machine, digitizer, etc., which is provided with a tension spring member for increasing and decreasing the tension elastic force, and a torque converting means for equalizing the spring elasticity of the tension spring member is provided between the first and second rotating members. In the balance device, the torque conversion means is provided between the first and second rotating members, and the ratio of the mutual rotation diameters changes in proportion to the increase and decrease of the tensile elastic force of the tension member with the rotation. A balance device for a moving body in a drafting machine, a digitizer, etc., characterized by comprising first and second torque conversion pulleys that are interlocked with each other by the rope wound around as described above.
て、引張ばね部材がゼンマイばね部材からなることを特
徴とする製図機、デジタイザ等における移動体のバラン
ス装置。2. A balance device for a moving body in a drafting machine, digitizer or the like according to claim 1, wherein the tension spring member is a spring spring member.
において、第1、第2の回転部材が移動体のバランスウ
エイトと連動するように構成したことを特徴とする製図
機、デジタイザ等における移動体のバランス装置。3. A drafting machine according to claim 1 or 2, wherein the first and second rotating members are configured to interlock with a balance weight of the moving body. A balance device for moving objects in digitizers.
る案内レールに、移動体の移動に伴って回転する第1の
回転部材を設けると共に、第2の回転部材に回転量の増
減に伴って引張弾力が増減する引張ばね部材を設け、前
記第1と第2の回転部材の間に、前記引張ばね部材のば
ね弾力を均等化するトルク変換手段を設けてなる製図
機、デジタイザ等における移動体のバランス装置におい
て、前記引張ばね部材の一端側を第2の回転部材に作用
させ、他端側を案内レールの側壁部に回転位置決め自在
に設けたばねケースに固定し、該ばねケースを回転位置
決め調整することによって前記引張ばね部材のばね弾力
を調整自在に構成したことを特徴とする製図機、デジタ
イザ等における移動体のバランス装置。4. A guide rail for guiding a moving body such as a scale or a digitizer is provided with a first rotating member that rotates with the movement of the moving body, and a second rotating member is provided with the increase or decrease in the amount of rotation. A moving body in a drafting machine, digitizer, etc., which is provided with a tension spring member for increasing or decreasing the tension elastic force, and a torque converting means for equalizing the spring elasticity of the tension spring member is provided between the first and second rotating members. Balance device, one end side of the tension spring member is made to act on the second rotating member, and the other end side is fixed to a spring case rotatably positioned on the side wall portion of the guide rail, and the spring case is rotationally positioned and adjusted. A balance device for a moving body in a drafting machine, digitizer, etc., characterized in that the spring resilience of the tension spring member is adjustable.
て、引張ばね部材がゼンマイばね部材からなることを特
徴とする製図機、デジタイザ等における移動体のバラン
ス装置。5. A balancing device for a moving body in a drafting machine, digitizer or the like according to claim 4, wherein the tension spring member is a spring spring member.
において、第1、第2の回転部材が移動体のバランスウ
エイトと連動するように構成したことを特徴とする製図
機、デジタイザ等における移動体のバランス装置。6. The drafting machine according to claim 4 or 5, wherein the first and second rotating members are configured to interlock with a balance weight of the moving body. A balance device for moving objects in digitizers.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3727687A JPH0662038B2 (en) | 1987-02-20 | 1987-02-20 | Balance device for moving objects in drafting machines, digitizers, etc. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3727687A JPH0662038B2 (en) | 1987-02-20 | 1987-02-20 | Balance device for moving objects in drafting machines, digitizers, etc. |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS63203399A JPS63203399A (en) | 1988-08-23 |
JPH0662038B2 true JPH0662038B2 (en) | 1994-08-17 |
Family
ID=12493162
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3727687A Expired - Lifetime JPH0662038B2 (en) | 1987-02-20 | 1987-02-20 | Balance device for moving objects in drafting machines, digitizers, etc. |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0662038B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH074957Y2 (en) * | 1990-10-25 | 1995-02-08 | マツクス株式会社 | Balance device for vertical carriage in rail type drafting machine |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6052397A (en) * | 1983-08-31 | 1985-03-25 | 武藤工業株式会社 | Scale balancer in universal parallel rule |
-
1987
- 1987-02-20 JP JP3727687A patent/JPH0662038B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPS63203399A (en) | 1988-08-23 |
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