JPS59144841A - Balancing mechanism of cantilever - Google Patents
Balancing mechanism of cantileverInfo
- Publication number
- JPS59144841A JPS59144841A JP23028582A JP23028582A JPS59144841A JP S59144841 A JPS59144841 A JP S59144841A JP 23028582 A JP23028582 A JP 23028582A JP 23028582 A JP23028582 A JP 23028582A JP S59144841 A JPS59144841 A JP S59144841A
- Authority
- JP
- Japan
- Prior art keywords
- cantilever
- chain
- spring
- cantilever beam
- load
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/28—Counterweights, i.e. additional weights counterbalancing inertia forces induced by the reciprocating movement of masses in the system, e.g. of pistons attached to an engine crankshaft; Attaching or mounting same
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
Description
【発明の詳細な説明】
（ａ）発明の技術分野
本発明は、片持ばりに荷重が作用した状態で、該片持ば
りを昇降させ、作業を行なう装置に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Technical Field of the Invention The present invention relates to a device that performs work by raising and lowering a cantilever beam while a load is applied to the cantilever beam.
（０１従来技術とその問題点
第１図に示すよ・うに、片持ばり１の先端に荷重Ｗ１を
取付け、ガイド支柱２に沿って、該片持ばり１をモータ
Ｍで昇降させることにより、種々の作業を行なうことか
工場などの生産現場で採用されている。このような装置
で、荷重Ｗ１が大きかったり、片持はりの長さ１１が長
くモーメントが大きいと、ガイド支柱２とベアリンク３
間が片当りし、片持ばりの昇降が円滑に行なえない。そ
のため、片持ばり１を、荷重Ｗの作用点とは反対側に延
長して、バランスウェイトＷ３を取イ」けることが一般
に行なわれている。(01 Prior art and its problems As shown in Fig. 1, by attaching a load W1 to the tip of the cantilever beam 1 and moving the cantilever beam 1 up and down along the guide column 2 with a motor M, It is used in production sites such as factories to perform various tasks.In such devices, if the load W1 is large or the length 11 of the cantilever beam is long and the moment is large, the guide column 2 and the bearing link 3
The gap is uneven, and the cantilever beam cannot be raised and lowered smoothly. Therefore, it is common practice to extend the cantilever beam 1 to the side opposite to the point of application of the load W to accommodate the balance weight W3.
ところがこのような構成では、荷重Ｗ１を昇腎させるチ
ェインイを接続した作用点Ｐには、吊り上げ荷重Ｗ１
→−バランスウェイトＷ３の重量か作用することになる
。そのため、駆動モータＭとしては、バランスウェイ）
Ｗ３が無い場合のほぼ２倍の駆動力を必要とし、またチ
ェイン４なども２倍の強度に耐えられるものを用いなけ
ればならない。更に設置床も、２倍の重量に耐えられる
よ・うにしなければならず、２階以上のフロアに設置す
ることが困■Ｗな場合がでてくる。更に設置場所によっ
ては、バランスウェイトＷ３を取イ二］けるだりのスペ
ース的余裕が無い場合もある。However, in such a configuration, the lifting load W1 is connected to the point of action P connected to the chain that lifts the load W1.
→-The weight of the balance weight W3 will act. Therefore, as a drive motor M, balance way)
Almost twice as much driving force as in the case without W3 is required, and the chain 4 and the like must be made of a material that can withstand twice the strength. Furthermore, the floor on which it is installed must be able to withstand twice the weight, which may make it difficult to install it on floors above the second floor. Furthermore, depending on the installation location, there may not be enough space to remove the balance weight W3.
（ｄ＋発明の目的
本発明は、従来の片持はりのバランス機構におけるこの
ような問題を解消し、駆動源なとの各部にバランス手段
による余計の負担がかからない調うにすることを目的と
する。(d+Object of the Invention) An object of the present invention is to eliminate such problems in the conventional balance mechanism of a cantilever beam, and to avoid placing an unnecessary burden on various parts such as the drive source due to the balance means.
ｔｅ１発明の構成
この目的を達成するために本発明もよ、上下方向のガイ
ド手段に沿って上下する片持ばりと、この片持ばりを昇
降させる駆動手段と、片持ばりを吊り上げる支点に対し
、荷重の作用点と反対側の位置に下向きの力が作用する
ように、バランス用のハネを介してチェインまたはワイ
ヤなどを取付け、その他端をガイド手段を経由して片持
ばりの支点または支点より荷重側に、片持はりを引き」
二げる方向の力が作用するように数例けた構成を採って
いる。te1 Structure of the Invention In order to achieve this object, the present invention also provides a cantilever beam that moves up and down along a guide means in the vertical direction, a drive means that raises and lowers the cantilever beam, and a fulcrum that lifts the cantilever beam. , Attach a chain or wire via a balance spring so that a downward force is applied to a position opposite to the point of application of the load, and connect the other end via a guide means to the fulcrum or fulcrum of a cantilever beam. Pull the cantilever closer to the load side.
A structure with several girders is adopted so that force acts in the opposite direction.
（ｆ１発明の実施例
次に本発明による片持ばりのバランス機構が実際上どの
ように具体化されるかを実施例で説明する。第２図は本
発明による片持ばりのバランス機構の実施例を示す部分
断面側４面図である。(f1 Embodiment of the invention) Next, how the cantilever balance mechanism according to the present invention is practically embodied will be explained by way of an example. FIG. FIG. 4 is a partial cross-sectional side four-view view showing an example.
第１図の場合と同様に、片持ばり１は、リニアホールヘ
アリング３を介してガイド支柱２に取付けられており、
荷重Ｗｌを吊った状態で、チェイン４によって昇降され
る。本発明では、従来の）＜ランスウェイトの取付は位
置に開りたバカ穴５にネジ棒６を挿通しである。またバ
カ穴５」二でネジ棒６を複数枚の皿ハネ７・・・に押通
して、上側に調節ナツト８を螺合させ、下端をチェイン
またはワイヤなど（以下「チェイン」と略す）９で下方
に引っ張る。そしてチェイン９は、下側のフレーム１０
に取付けられたスプロケット１１−上側のフレーム１２
に取付けられたスプロケット１３−’１４の順に経由し
て、片持ばり１の支点Ｐに取付りである。このようにチ
ェイン９を掛けた状態で、調節ナツト８を調節して、皿
ハネ７・・・によって、片持ばり１の他端１ａに、ハラ
ンス力が作用するようにする。この場合型ハネ７・・・
のハネ力は、次のようにして設定される。As in the case of FIG. 1, the cantilever beam 1 is attached to the guide column 2 via the linear hole hair ring 3,
It is lifted and lowered by the chain 4 with the load Wl suspended. In the present invention, the conventional lance weight is attached by inserting the threaded rod 6 into the hole 5 opened at the position. In addition, push the threaded rod 6 through the plurality of countersunk springs 7 through the hole 5'', screw the adjustment nut 8 onto the upper side, and attach the lower end to a chain or wire (hereinafter abbreviated as ``chain'') 9. and pull it downward. And the chain 9 is the lower frame 10
sprocket 11 mounted on - upper frame 12
It is attached to the fulcrum P of the cantilever beam 1 via the sprockets 13-'14 attached in this order. With the chain 9 hanging in this manner, the adjustment nut 8 is adjusted so that a harrance force is applied to the other end 1a of the cantilever beam 1 by the countersunk springs 7. In this case, type 7...
The spring force of is set as follows.
片持ばり１で支持する荷重をＷ＋ 、皿ノ＼ネ７・・・
によるバランス用のハネ力をＷ３、昇降機構の重量をＷ
２ とする。また支点Ｐから荷重Ｗ１までの距離を７８
１、支点Ｐから昇降機構の重量Ｗｒの作用点までの距離
を１２ｒ、支点Ｐから皿ノ＼ネ７・・・の取付は位置ま
での距離をβ３とする。そして支点Ｐに対し、反時計回
りに作用する曲げモーメントをＭｌ、支点Ｐに対し、時
計回りに作用する曲げモーメントをＭｌとすると、
Ｍｌ ＝Ｗ＋ Ｘβ１
Ｍｌ ＝Ｗｒ Ｘ １２ ＋Ｗ３ ×ρ３皿バネ
７・・・のハネ力Ｗ１をごのように設定すると、皿バネ
７・・・が片持ばり１の他端１ａを押Ｔげるバネ力か、
従来のバランスウェイトＷ３の重量と同等の作用をする
。またチェイン９０両端は、片持ばり１と−・体の同一
剛体に取イ」けられていて、エン１−レス伏になってい
るため１、片持ばり１および支点Ｐか上昇すると、皿ハ
ネ７・・・の位置も同し距離だけ」二昇するので、チェ
イン９の負荷変動は発生せず、皿ハネ７・・・のハネ力
も全く変化しない。The load supported by cantilever beam 1 is W+, countersunk \ne 7...
The spring force for balance is W3, and the weight of the lifting mechanism is W.
2. Also, the distance from the fulcrum P to the load W1 is 78
1. The distance from the fulcrum P to the point of action of the weight Wr of the lifting mechanism is 12r, and the distance from the fulcrum P to the mounting position of the countersunk 7... is β3. Then, let the bending moment acting counterclockwise with respect to the fulcrum P be Ml, and the bending moment acting clockwise with respect to the fulcrum P be Ml, then Ml = W + Xβ1 Ml = Wr X 12 + W3 × ρ3 disc spring 7・If the spring force W1 of ... is set as shown below, the spring force of the disc spring 7 ... to push the other end 1a of the cantilever beam 1, or
It has the same effect as the weight of the conventional balance weight W3. In addition, both ends of the chain 90 are attached to the same rigid body of the cantilever beam 1 and the body, and since the chain 90 is in a non-engaging position, when the cantilever beam 1 and the fulcrum P rise, the Since the positions of the springs 7 are also raised by the same distance, no load fluctuation occurs on the chain 9, and the spring force of the disc springs 7 does not change at all.
従って常にバランスをとるためのハネ力Ｗ３が作用する
。Therefore, the spring force W3 for maintaining balance always acts.
また皿ハネは、第４図に示すよ・うに、その変形による
寸法変化量δを横軸とし、バネ力Ｑを縦軸とした場合、
ハネ力Ｑが最も大きい領域においては、寸法が変化して
もハネ力はぼは一定となる。As shown in Fig. 4, when the horizontal axis of the countersunk spring is the dimensional change δ due to its deformation and the vertical axis is the spring force Q,
In the region where the spring force Q is the largest, the spring force remains constant even if the dimensions change.
皿ハネのこのような特性を利用し、ハネ力か一定の領域
δＣにハネ力を設定すれば、ヘアリング３の摩耗、チェ
イン９の延びなどが発生したとしても、ハランスカＷ３
が低下することはなく、ハネ力の調節を頻繁に行なわな
いですむ。If you use these characteristics of countersunk springs and set the spring force in a constant range δC, even if the hair ring 3 wears out, the chain 9 stretches, etc., the Haranska W3
There is no decrease in the spring force, and there is no need to frequently adjust the spring force.
図のように例えば４枚ずつ同じ方向に重ねた４枚１組の
皿ハネを、順次向きを逆にして複数段に重ねると、段数
と同じ方向に重ねる枚数を選択す、ることによって、第
４図の曲線のバネ力Ｑおよび寸法変化量δを容易にかつ
任意に選ふことができる。As shown in the figure, for example, if you stack a set of four countersunk blades in multiple layers with four sheets stacked in the same direction, one by one, with the directions reversed, the number of plates stacked in the same direction as the number of layers is selected. The spring force Q and the dimensional change amount δ of the curve shown in FIG. 4 can be easily and arbitrarily selected.
片持ばり１力月本だりの場合は、前後２本のガイド支柱
２．２だけで足りるが、第３図に示すように、多数の片
持ばり１・・・を用いる場合は、それぞれの片持ばり１
・・・を共通の横部祠１５に取付Ｇノ、該部材１５の両
端に、第２図と同様のバランス機構を設けるのが安定性
の点で有効である。In the case of a single cantilever beam, only two guide columns 2.2 at the front and back are sufficient, but as shown in Figure 3, when using a large number of cantilever beams 1..., each Cantilever beam 1
It is effective from the point of view of stability to attach .
＋ｇ）発明の効果
以上のように本発明によれば、バー持ばりを吊り上げる
支点に対し、荷重の作用点と反対側の位置に下向きの力
が作用するように、バランス用のハネを介してチェイン
またはワイヤなとを数例り、その他端をスプロケットな
どのガイド手段を経由して片持はりの支点または支点よ
り何重側に、片持ばりを引き」二げる方向の力が作用す
るように取付けた構成になっている。そのため、従来の
ようにバランスウェイトを設げる必要かなく、その結果
駆動モータや吊り上げチェインなどの負担が大きくなる
といった問題が解消される。また設置床もバランスウェ
イトのｉｔを考慮しないで済むので１，２階以上に設置
することもできる。さらに、皿ハネなどのよ・うなハネ
を取付り、チェインなとをエンｌ−レス状に掛りるだり
でよいので、バランスウェイトに比べてバランス手段の
設置スペースが小、さく−ζ済む。+g) Effects of the Invention As described above, according to the present invention, a downward force is applied to the fulcrum for hoisting the bar beam at a position opposite to the point of application of the load, using a balance spring. A force in the direction of pulling the cantilever beam upward is applied to the fulcrum of the cantilever beam or to several sides from the fulcrum point using a chain or wire, for example, and a sprocket or other guiding means at the other end. It is configured as follows. Therefore, it is not necessary to provide a balance weight as in the conventional case, and as a result, the problem of increasing the load on the drive motor, lifting chain, etc. is solved. Furthermore, since there is no need to consider the balance weight IT, the installation floor can also be installed on the first or second floor or higher. Furthermore, since it is sufficient to attach a spring such as a countersunk spring and hang a chain in an endless manner, the installation space for the balance means is smaller and smaller than that for a balance weight.
第１図は従来の片持ばりのバランス機構を示す部分断面
側面図、第２図は本発明の実施例を示す部分断面側面図
、第３図は本発明の別の実施例を示す斜視図、第４図は
皿バヱの特性を示す図である。
図において、■は片持ばり、Ｉａ片持はりの他端、Ｐは
支点、２・２はガイド支柱、３はベアリング、・４は吊
り」−げ用のチェインまたはワイヤ等、７・・・は皿ハ
ネ、９はバランス用のチェインまたはワイヤ等、１１．
１３．１４はガイｌ−用のスプロケットをそれぞれ示す
。
特許出願人 冨士通株式会社代理人 弁理士
青 柳 稔第１図
第３図
第４図
→寸法変形ｆＪFig. 1 is a partially sectional side view showing a conventional cantilever balance mechanism, Fig. 2 is a partially sectional side view showing an embodiment of the present invention, and Fig. 3 is a perspective view showing another embodiment of the present invention. , FIG. 4 is a diagram showing the characteristics of the plate. In the figure, ■ is a cantilever beam, the other end of the cantilever beam Ia, P is a fulcrum, 2.2 is a guide column, 3 is a bearing, ・4 is a chain or wire for hanging, etc., 7... 9 is a balance chain or wire, etc., 11.
13 and 14 respectively show sprockets for guy l-. Patent applicant: Fujitsu Co., Ltd. Agent: Minoru Aoyagi, patent attorney: Figure 1, Figure 3, Figure 4 → Dimensional deformation fJ
Claims (1)
の片持ばりを昇降させる駆動手段と、片持ばりを吊り上
げる支点に対し、荷重の作用点と反対側の位置に下向き
の力が作用するように、バランス用のハネを介してチェ
インまたはワイヤなどを取イ」け、その他端をガイド手
段を経由して片持ばりの支点または支点より荷重側に、
片持ばりを引き上げる方向の力が作用するように取付け
てなる片持ばりのバランス機構。A downward force is applied to the cantilever beam that moves up and down along the vertical guide means, the drive means that raises and lowers the cantilever beam, and the fulcrum that lifts the cantilever beam at a position opposite to the point of application of the load. In this way, take a chain or wire through the balance spring, and connect the other end to the fulcrum of the cantilever beam or the load side from the fulcrum through the guide means.
A cantilever balance mechanism that is installed so that a force is applied in the direction of pulling up the cantilever.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23028582A JPS59144841A (en) | 1982-12-29 | 1982-12-29 | Balancing mechanism of cantilever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23028582A JPS59144841A (en) | 1982-12-29 | 1982-12-29 | Balancing mechanism of cantilever |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59144841A true JPS59144841A (en) | 1984-08-20 |
Family
ID=16905410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23028582A Pending JPS59144841A (en) | 1982-12-29 | 1982-12-29 | Balancing mechanism of cantilever |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59144841A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5844182A (en) * | 1996-03-01 | 1998-12-01 | Niles Parts Co., Ltd. | Power seat switch mechanism including actuators for selectively operating switches |
| CN102927200A (en) * | 2012-11-09 | 2013-02-13 | 无锡市新康纺机有限公司 | Clump weight used on lifting balancing part of coarse spinner |
| CN113464607A (en) * | 2021-07-16 | 2021-10-01 | 厦门大学 | Star-shaped tuning particle damper |
-
1982
- 1982-12-29 JP JP23028582A patent/JPS59144841A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5844182A (en) * | 1996-03-01 | 1998-12-01 | Niles Parts Co., Ltd. | Power seat switch mechanism including actuators for selectively operating switches |
| CN102927200A (en) * | 2012-11-09 | 2013-02-13 | 无锡市新康纺机有限公司 | Clump weight used on lifting balancing part of coarse spinner |
| CN113464607A (en) * | 2021-07-16 | 2021-10-01 | 厦门大学 | Star-shaped tuning particle damper |
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