JPH0828703A - Energizing controller for moving body - Google Patents

Energizing controller for moving body

Info

Publication number
JPH0828703A
JPH0828703A JP17124894A JP17124894A JPH0828703A JP H0828703 A JPH0828703 A JP H0828703A JP 17124894 A JP17124894 A JP 17124894A JP 17124894 A JP17124894 A JP 17124894A JP H0828703 A JPH0828703 A JP H0828703A
Authority
JP
Japan
Prior art keywords
magnet
moving body
piston
force
spring
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.)
Withdrawn
Application number
JP17124894A
Other languages
Japanese (ja)
Inventor
Ryozo Ariizumi
諒三 有泉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujikura Composites Inc
Original Assignee
Fujikura Rubber Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujikura Rubber Ltd filed Critical Fujikura Rubber Ltd
Priority to JP17124894A priority Critical patent/JPH0828703A/en
Publication of JPH0828703A publication Critical patent/JPH0828703A/en
Withdrawn legal-status Critical Current

Links

Landscapes

  • Reciprocating Pumps (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

PURPOSE:To control the energizing or returning force, of a moving body by providing a magnet on one of the moving body and a relatively moving member to which the moving body is relatively moved and a magnetic member on the other for a device to spring-energize the moving body in either sliding direction. CONSTITUTION:In a diaphragm piston device, the first magnet 30 is fixed to the piston plate 13a side and the second magnet 40 opposed to the first magnet 30 is fixed to the lower housing 11b side. The magnets 30, 40 consist of permanent magnets 31, 41 and yokes 32, 42, respectively, the portions of the permanent magnets 31, 41 opposing each other having different polarities or the same polarity. When pressure air in a compressed air source 18 is guided to a pressure room 16 via a control valve 17, a piston 13 is lowered, and when the guide of the pressure air to the pressure room 16 is stopped, the piston 13 is returned to an original position. The returning force of the piston 13 is that the attracting force of the magnets 30, 40 is subtracted from the force of a compression spring 24 or the repelling force is added thereto.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【技術分野】本発明は、ばねによって付勢されたピスト
ン等の移動体の付勢力調整装置に関する。
TECHNICAL FIELD The present invention relates to a biasing force adjusting device for a moving body such as a piston biased by a spring.

【0002】[0002]

【従来技術及びその問題点】例えば、シリンダ装置に嵌
めたピストンには一般に、復帰ばねが付設され、圧力室
に圧力流体を供給しない状態では、ピストンは復帰ばね
によって休止位置に復帰する。この復帰ばねは、ピスト
ンの摺動抵抗や、休止位置への復帰速度を勘案してその
ばね定数が設定されるが、一度設定すると、移動体に対
する付勢力、つまり復帰速度や復帰力は、変更すること
ができなかった。
2. Description of the Related Art For example, a piston fitted in a cylinder device is generally provided with a return spring, and when the pressure fluid is not supplied to the pressure chamber, the piston is returned to a rest position by the return spring. The spring constant of this return spring is set in consideration of the sliding resistance of the piston and the return speed to the rest position, but once set, the biasing force against the moving body, that is, the return speed and return force, can be changed. I couldn't.

【0003】[0003]

【発明の目的】本発明は、ピストン等の移動体の付勢
力、つまり復帰力を調整することができる装置を得るこ
とを目的とする。
SUMMARY OF THE INVENTION It is an object of the present invention to provide a device capable of adjusting the urging force of a moving body such as a piston, that is, the restoring force.

【0004】[0004]

【発明の概要】本発明は、磁力によって、ばね定数を見
かけ上変更するという着想に基づいてなされたもので、
移動体を、該移動体の摺動方向のいずれか一方にばねで
付勢した装置において、該移動体と、該移動体が相対移
動する相対移動部材とのいずれか一方に、磁石を設け、
他方に、この磁石と吸引し合い、あるいは反発し合う磁
性部材を設けたことを特徴としている。
SUMMARY OF THE INVENTION The present invention is based on the idea of apparently changing the spring constant by magnetic force.
In a device in which a moving body is biased by a spring in one of the sliding directions of the moving body, a magnet is provided in either one of the moving body and a relative moving member with which the moving body relatively moves,
On the other hand, a magnetic member that attracts or repels the magnet is provided.

【0005】磁性部材は、磁石、強磁性体のいずれによ
っても構成することができる。また、磁石は電磁石とす
れば、付与電流を変化させることにより、磁気吸引力又
は磁気反発力を変化させ、付勢力を調整することが可能
となる。
The magnetic member can be composed of either a magnet or a ferromagnetic material. Further, if the magnet is an electromagnet, it is possible to change the magnetic attraction force or the magnetic repulsion force by changing the applied current to adjust the biasing force.

【0006】[0006]

【発明の実施例】以下図示実施例について本発明を説明
する。図1は、本発明の第1の実施例を示すもので、ハ
ウジング11は、アッパハウジング11aとロアハウジ
ング11bとからなり、両ハウジング11a、11bの
間に、ダイアフラム12の周縁部が挟着されている。ダ
イアフラム12には、ピストンプレート13aとピスト
ンロッド14が結合されていて、ピストン体13を構成
している。ピストンロッド14は、すべり軸受15を介
してロアハウジング11bの外部に導かれている。ダイ
アフラム12とアッパハウジング11aの間には、圧力
室16が形成されており、この圧力室16には、制御弁
17を介して、圧縮空気源18からの加圧空気が導かれ
る。
BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to illustrated embodiments. FIG. 1 shows a first embodiment of the present invention. A housing 11 is composed of an upper housing 11a and a lower housing 11b, and a peripheral edge portion of a diaphragm 12 is sandwiched between both housings 11a and 11b. ing. A piston plate 13 a and a piston rod 14 are connected to the diaphragm 12 to form a piston body 13. The piston rod 14 is guided to the outside of the lower housing 11b via a slide bearing 15. A pressure chamber 16 is formed between the diaphragm 12 and the upper housing 11a, and pressurized air from a compressed air source 18 is introduced into the pressure chamber 16 via a control valve 17.

【0007】一方、ダイアフラム12とロアハウジング
11bの間には、ばね室20が形成されている。このば
ね室20は、大気孔21を介して、大気に連通してい
る。ばね室20内には、ロアハウジング11bに形成し
たばね受け座22とピストンプレート13aとの間に、
圧縮ばね24が挿入されていて、ピストン体13を圧力
室16側に移動付勢している。
On the other hand, a spring chamber 20 is formed between the diaphragm 12 and the lower housing 11b. The spring chamber 20 communicates with the atmosphere via the atmosphere hole 21. In the spring chamber 20, between the spring receiving seat 22 formed on the lower housing 11b and the piston plate 13a,
The compression spring 24 is inserted and urges the piston body 13 to move toward the pressure chamber 16 side.

【0008】以上の構成は、通常のダイアフラムピスト
ン装置の構造であるが、本発明はさらに、ピストンプレ
ート13a側に、第一磁石体30が固定され、ロアハウ
ジング(相対移動体)11b側に、この第一磁石体30
と対向する第二磁石体40が固定されている。第一磁石
体30は、永久磁石31とヨーク32とからなってお
り、第二磁石体40は、永久磁石41とヨーク42とか
らなっている。永久磁石31と41の極性は、互いに対
向する部分を異極として互いに磁気吸引力で吸引し合う
ようにし、あるいは対向部分を同極として互いに磁気反
発力で反発し合うようにする。
The above construction is the structure of a normal diaphragm piston device, but in the present invention, the first magnet body 30 is further fixed to the piston plate 13a side, and the lower housing (relative moving body) 11b side is provided. This first magnet body 30
The second magnet body 40 facing is fixed. The first magnet body 30 is composed of a permanent magnet 31 and a yoke 32, and the second magnet body 40 is composed of a permanent magnet 41 and a yoke 42. The polarities of the permanent magnets 31 and 41 are such that opposing portions have different polarities and are attracted to each other by magnetic attraction force, or opposing portions have the same poles and have magnetic repulsion force.

【0009】上記構成の本装置は、制御弁17を介して
圧縮空気源18の加圧空気を圧力室16に導くと、ピス
トン体13が図において下降し、ピストンロッド14に
よって何らかの仕事がなされる。圧力室16への加圧空
気の導入を断つと、ピストン体13が原位置に復帰す
る。このピストン体13の復帰力は、永久磁石31と4
1の対向部分が同極の場合には、圧縮ばね24の力に、
第一磁石体30と第二磁石体40の反発力を加えた力と
なり、異極の場合には、圧縮ばね24の力から、第一磁
石体30と第二磁石体40の吸引力を引いた力となる。
すなわち、前者の場合は、圧縮ばね24のばね定数が見
かけ上、増加し、後者の場合は、同ばね定数が見かけ
上、減少することとなる。
In the present apparatus having the above-described structure, when the compressed air from the compressed air source 18 is guided to the pressure chamber 16 via the control valve 17, the piston body 13 descends in the figure and some work is performed by the piston rod 14. . When the introduction of the pressurized air into the pressure chamber 16 is cut off, the piston body 13 returns to the original position. The restoring force of this piston body 13 is
When the opposing portions of 1 have the same polarity, the force of the compression spring 24
The repulsive force of the first magnet body 30 and the second magnet body 40 is applied, and in the case of different polarities, the attraction force of the first magnet body 30 and the second magnet body 40 is subtracted from the force of the compression spring 24. It will be a force.
That is, in the former case, the spring constant of the compression spring 24 apparently increases, and in the latter case, the spring constant apparently decreases.

【0010】図2は、本発明の別の実施例を示すもの
で、ピストンロッド14には、ダイアフラム12及びピ
ストンプレート13aの代わりに、単にばね座プレート
26が固定されており、このばね座プレート26に第一
磁石体30が固定されている。ピストンロッド14に
は、図示しない駆動系により、圧縮ばね24に抗した移
動力が与えられる。ハウジング11は、ばね座プレート
26、圧縮ばね24、第一磁石体30、第二磁石体40
を大気に開放している。この他の部分は、図1の実施例
と同じであり、同一要素には同一の符号を付している。
この実施例によっても、第一の実施例と同様、永久磁石
31、41の極性の設定により、圧縮ばね24のばね定
数を、見かけ上、増加または減少させることができる。
FIG. 2 shows another embodiment of the present invention. Instead of the diaphragm 12 and the piston plate 13a, a spring seat plate 26 is simply fixed to the piston rod 14, and this spring seat plate is used. The first magnet body 30 is fixed to 26. The piston rod 14 is given a moving force against the compression spring 24 by a drive system (not shown). The housing 11 includes a spring seat plate 26, a compression spring 24, a first magnet body 30, and a second magnet body 40.
Is open to the atmosphere. The other parts are the same as those in the embodiment of FIG. 1, and the same elements are designated by the same reference numerals.
Also in this embodiment, similarly to the first embodiment, the spring constant of the compression spring 24 can be apparently increased or decreased by setting the polarities of the permanent magnets 31, 41.

【0011】以上の実施例では、第一磁石体30、第二
磁石体40をともに永久磁石から構成したが、いずれか
一方、例えば第二磁石体40を単なる強磁性材料として
も、同様の作用効果を得ることができる。
In the above embodiments, both the first magnet body 30 and the second magnet body 40 are made of permanent magnets. However, even if either one of them, for example, the second magnet body 40 is simply a ferromagnetic material, the same action is obtained. The effect can be obtained.

【0012】さらに、図3は、磁石を電磁石から構成し
た例である。すなわち、図1の実施例における第一磁石
体30に代えて電磁石50が備えられ、第二磁石体40
に代えて、強磁性プレート43が備えられている。電磁
石50は、コイル51とヨーク52とからなっていて、
コイル51は、電流制御装置53に接続されている。こ
の他の部分は図1の実施例と同一である。
Further, FIG. 3 shows an example in which the magnet is composed of an electromagnet. That is, the electromagnet 50 is provided in place of the first magnet body 30 in the embodiment of FIG.
Instead, a ferromagnetic plate 43 is provided. The electromagnet 50 includes a coil 51 and a yoke 52,
The coil 51 is connected to the current control device 53. The other parts are the same as in the embodiment of FIG.

【0013】この実施例によると、電流制御装置53に
よって、コイル51に流す電流を大小に調整することに
より、電磁石50による強磁性プレート43の吸引力を
調整することができる。よって、圧縮ばね24のばね定
数を、見かけ上、無段階に調節することができる。
According to this embodiment, the current control device 53 adjusts the magnitude of the current flowing through the coil 51 to adjust the attraction of the ferromagnetic plate 43 by the electromagnet 50. Therefore, the spring constant of the compression spring 24 can be apparently adjusted steplessly.

【0014】[0014]

【発明の効果】以上のように本発明によれば、移動体を
ばねで移動付勢した装置において、ばねの見かけ上のば
ね定数を増加または減少させ、移動体の付勢力、つまり
復帰力を調整することができる。
As described above, according to the present invention, in the device in which the moving body is moved and biased by the spring, the apparent spring constant of the spring is increased or decreased to increase the biasing force of the moving body, that is, the restoring force. Can be adjusted.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の移動体の付勢力調整装置の実施例を示
す断面図である。
FIG. 1 is a cross-sectional view showing an embodiment of a moving body biasing force adjusting device of the present invention.

【図2】本発明の別の実施例を示す断面図である。FIG. 2 is a sectional view showing another embodiment of the present invention.

【図3】本発明のさらに別の実施例を示す断面図であ
る。
FIG. 3 is a sectional view showing still another embodiment of the present invention.

【符号の説明】[Explanation of symbols]

11 ハウジング 12 ダイアフラム 13a ピストンプレート 13 ピストン体 14 ピストンロッド 16 圧力室 20 ばね室 24 圧縮ばね 30 第一磁石体 40 第二磁石体 31 41 永久磁石 32 42 ヨーク 43 強磁性プレート 50 電磁石 51 コイル 52 ヨーク 53 電流制御装置 11 Housing 12 Diaphragm 13a Piston plate 13 Piston body 14 Piston rod 16 Pressure chamber 20 Spring chamber 24 Compression spring 30 First magnet body 40 Second magnet body 31 41 Permanent magnet 32 42 Yoke 43 Ferromagnetic plate 50 Electromagnet 51 Coil 52 Yoke 53 Current control device

Claims (4)

【特許請求の範囲】[Claims] 【請求項1】 移動体を、該移動体の摺動方向のいずれ
か一方にばねで付勢した装置において、 上記移動体と、該移動体が相対移動する相対移動部材と
のいずれか一方に、磁石を設け、 他方に、この磁石との間で、磁気吸引力又は磁気反発力
を生じる磁性部材を設けたことを特徴とする移動体の付
勢力調整装置。
1. A device in which a moving body is biased by a spring in one of the sliding directions of the moving body, in which one of the moving body and a relative moving member relative to which the moving body relatively moves. A magnet is provided, and on the other hand, a magnetic member for generating a magnetic attraction force or a magnetic repulsive force between the magnet and the magnet is provided.
【請求項2】 請求項1において、磁性部材は、磁石で
ある移動体の付勢力調整装置。
2. The biasing force adjusting device for a moving body according to claim 1, wherein the magnetic member is a magnet.
【請求項3】 請求項1において、磁性部材は、強磁性
体である移動体の付勢力調整装置。
3. The urging force adjusting device according to claim 1, wherein the magnetic member is a ferromagnetic body.
【請求項4】 請求項1ないし3のいずれか1項におい
て、磁石は電磁石であり、磁気吸引力又は磁気反発力が
可変である移動体の付勢力調整装置。
4. The urging force adjusting device for a moving body according to claim 1, wherein the magnet is an electromagnet, and a magnetic attraction force or a magnetic repulsion force is variable.
JP17124894A 1994-07-22 1994-07-22 Energizing controller for moving body Withdrawn JPH0828703A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17124894A JPH0828703A (en) 1994-07-22 1994-07-22 Energizing controller for moving body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17124894A JPH0828703A (en) 1994-07-22 1994-07-22 Energizing controller for moving body

Publications (1)

Publication Number Publication Date
JPH0828703A true JPH0828703A (en) 1996-02-02

Family

ID=15919803

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17124894A Withdrawn JPH0828703A (en) 1994-07-22 1994-07-22 Energizing controller for moving body

Country Status (1)

Country Link
JP (1) JPH0828703A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012165232A1 (en) * 2011-06-03 2012-12-06 Smc株式会社 Piston assembly, fluid pressure cylinder, method for manufacturing piston assembly
CN117629792A (en) * 2023-11-09 2024-03-01 浙江苏可安药业有限公司 Equipment and method for detecting infiltration degree of traditional Chinese medicinal materials

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012165232A1 (en) * 2011-06-03 2012-12-06 Smc株式会社 Piston assembly, fluid pressure cylinder, method for manufacturing piston assembly
JP2012251602A (en) * 2011-06-03 2012-12-20 Smc Corp Piston assembly, fluid pressure cylinder, method for manufacturing piston assembly
KR101540949B1 (en) * 2011-06-03 2015-07-31 에스엠씨 가부시키 가이샤 Piston assembly, fluid pressure cylinder, method for manufacturing piston assembly
CN117629792A (en) * 2023-11-09 2024-03-01 浙江苏可安药业有限公司 Equipment and method for detecting infiltration degree of traditional Chinese medicinal materials

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Effective date: 20011002