JPH0231619Y2 - - Google Patents
Info
- Publication number
- JPH0231619Y2 JPH0231619Y2 JP1988104863U JP10486388U JPH0231619Y2 JP H0231619 Y2 JPH0231619 Y2 JP H0231619Y2 JP 1988104863 U JP1988104863 U JP 1988104863U JP 10486388 U JP10486388 U JP 10486388U JP H0231619 Y2 JPH0231619 Y2 JP H0231619Y2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- coil spring
- fluid
- fluid pressure
- support plate
- 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
Links
- 239000012530 fluid Substances 0.000 claims description 21
- 239000006096 absorbing agent Substances 0.000 claims description 9
- 230000035939 shock Effects 0.000 claims description 9
- 230000003139 buffering effect Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Motor Or Generator Current Collectors (AREA)
- Combined Devices Of Dampers And Springs (AREA)
- Motor Or Generator Frames (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
この考案は、被加圧物に所定の圧力を付与する
場合に、その圧力をほぼ一定に保持することが可
能な圧力保持装置に関する。[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a pressure holding device that can maintain a substantially constant pressure when applying a predetermined pressure to a pressurized object.
従来、例えば交流整流子電動機等において、整
流子面とブラシとの間に所定の圧力を保持させて
これらの電気的接続を確実に達成することが必要
とされる。この場合、第１図に示すように、固定
板２に平板状の支持体４を固着し、この支持体４
から整流子面の方向にコイルばね６を突設し、こ
のコイルばね６の先端部にブラシ８を係着したブ
ラシ保持器が広範に使用されている。
Conventionally, in AC commutator motors and the like, for example, it has been necessary to maintain a predetermined pressure between a commutator surface and brushes to reliably achieve electrical connection between them. In this case, as shown in FIG.
Brush holders are widely used in which a coil spring 6 is provided protruding from the commutator surface in the direction of the commutator surface, and a brush 8 is attached to the tip of the coil spring 6.
しかしながら、ブラシ８が比較的軟質の黒鉛ブ
ラシである場合は、時間の経過により摩耗を生じ
て整流子面とブラシとの間に所望の圧接力が得ら
れなくなる難点がある。 However, if the brush 8 is a relatively soft graphite brush, it will wear out over time, making it difficult to obtain the desired contact force between the commutator surface and the brush.
このような観点から、従来よりコイルばねの単
一使用に代えて、流体圧緩衝器との併用やコイル
ばねの２重併用等が種々提案されている（例え
ば、特公昭47−49084号公報）。しかしながら、こ
れらの組合せ構成は、単に流体圧緩衝器との直列
的な接続構成であつたり、大小複数の同種のコイ
ルばねを並設するものであつて、圧縮力に対する
弾力性を強化することができるが、被加圧物に対
する位置変位について圧力をほぼ一定に保持する
ことに関しては満足し得るものではない。 From this point of view, instead of using a single coil spring, various proposals have been made, such as using a fluid pressure shock absorber or using a dual coil spring (for example, Japanese Patent Publication No. 47-49084). . However, these combination configurations are simply a series connection configuration with a fluid pressure shock absorber, or a configuration in which multiple large and small coil springs of the same type are arranged in parallel, and it is not possible to strengthen the elasticity against compressive force. However, it is not satisfactory in terms of keeping the pressure substantially constant with respect to the positional displacement of the pressurized object.
また、従来の同種のコイルスプリングを同心的
に並設するものにあつては、これらコイルスプリ
ングの両端の取付け対象物に対し、軸心が変位し
ないように両コイルスプリングを固定する手段が
採用されている。すなわち、両コイルスプリング
の軸心が変位しないように、所定のガイド部材を
設けることが不可欠であり、もしこのようなガイ
ド部材がない場合には、軸心が常に変位して適正
な弾力保持ができないものとなる。 In addition, when conventional coil springs of the same type are arranged concentrically side by side, a means is adopted to fix both coil springs to the objects to which they are attached at both ends so that their axes do not displace. ing. In other words, it is essential to provide a designated guide member so that the axes of both coil springs do not displace. If such a guide member is not provided, the axes will constantly displace and proper elasticity cannot be maintained. It becomes something that cannot be done.
そこで、本考案の目的は、コイルばねと流体圧
緩衝器とを併用し、しかもコイルばねに対しては
その軸心の変位を防止するガイド部材を設けるこ
となく結合し、コイルばねの取付け対象物の一方
が振動などにより多少の変位を生じてもこれを許
容でき、簡単な構成でしかも被加圧部材に対し所
定の圧力を得ることができるよう構成した圧力保
持装置を提供するにある。 Therefore, an object of the present invention is to use a coil spring and a fluid pressure shock absorber in combination, and to connect the coil spring without providing a guide member to prevent displacement of its axis, and to connect the coil spring to the object to which the coil spring is attached. It is an object of the present invention to provide a pressure holding device capable of tolerating a slight displacement of one side due to vibration or the like, having a simple structure, and capable of obtaining a predetermined pressure on a pressurized member.
前記の目的を達成するため、本考案において
は、流体を密封したシリンダと該シリンダに装着
されたピストンとからなる流体圧緩衝器の一端を
被加圧部材に対向する圧力付与手段の一部に当接
配置し、前記流体圧緩衝器の他端に支持板を介し
てコイルばねの一端を結合し、このコイルばねの
他端を前記流体圧緩衝器への圧力付与に対し伸張
ばね作用を有するように円筒状支持体を介して固
定部材に懸架し、前記支持板において前記流体圧
緩衝器に対する圧縮弾力とコイルばねに対する伸
張弾力とがそれぞれ逆方向に作用させて被加圧部
材に所定の圧力付与を行うよう構成することを特
徴とする。
In order to achieve the above object, in the present invention, one end of a fluid pressure buffer consisting of a fluid-sealed cylinder and a piston attached to the cylinder is made into a part of the pressure applying means facing the pressurized member. one end of a coil spring is connected to the other end of the fluid pressure shock absorber via a support plate, and the other end of the coil spring has an expansion spring action when pressure is applied to the fluid pressure shock absorber. The suspension is suspended on a fixed member via a cylindrical support, and the compression elasticity on the fluid pressure buffer and the expansion elasticity on the coil spring act in opposite directions on the support plate to apply a predetermined pressure to the pressurized member. It is characterized by being configured to perform the granting.
本考案に係る圧力保持装置によれば、流体圧緩
衝器の一端を圧力付与手段の一部に当接し、該流
体圧緩衝器の他端をコイルばねの圧縮弾力作用下
に固定部材に保持することにより、外部圧力をそ
れぞれ逆方向に作用する流体の圧縮力と伸張ばね
弾力とで緩衝するため、従来の圧縮ばね作用のみ
による緩衝もしくは単なる流体圧緩衝器とコイル
ばねとの組合せからなる緩衝に比べて、緩衝力す
なわち保持圧力を広範囲に亘つて安定化すること
ができる。
According to the pressure holding device according to the present invention, one end of the fluid pressure damper is brought into contact with a part of the pressure applying means, and the other end of the fluid pressure damper is held on the fixed member under the compressive elastic action of the coil spring. As a result, the external pressure is buffered by the compressive force of the fluid and the elasticity of the extension spring, which act in opposite directions. Therefore, it is possible to use conventional buffering only by the action of compression springs, or by simply combining a fluid pressure damper and a coil spring. In comparison, the buffering force or holding pressure can be stabilized over a wide range.
次に、本考案に係る圧力保持装置の好適な実施
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, preferred embodiments of the pressure holding device according to the present invention will be described in detail with reference to the accompanying drawings.
第２図において、参照符号１０は固定部材を示
し、この固定部材１０には金属製もしくは合成樹
脂製の円筒状支持体１２を装着する。この場合、
固定部材１０に予め螺子溝を該設すると共に支持
体１２の外周部に螺子溝を切設して、これらの螺
子溝を相互に螺合するように構成すれば好適であ
る。また、支持体１２の下端縁部に下部フランジ
１４を設けて、この下部フランジ１４を前記固定
部材１０に、例えば、接着剤等を使用して固着す
れば、支持体１２と固定部材１０との固定を強固
にすることができ好適である。 In FIG. 2, reference numeral 10 indicates a fixing member, and a cylindrical support 12 made of metal or synthetic resin is attached to this fixing member 10. in this case,
It is preferable to provide a screw groove in advance in the fixing member 10 and cut a screw groove in the outer circumferential portion of the support body 12 so that these screw grooves are screwed together. Further, if a lower flange 14 is provided at the lower edge of the support 12 and this lower flange 14 is fixed to the fixing member 10 using an adhesive or the like, the support 12 and the fixing member 10 can be connected to each other. This is preferable because it can strengthen the fixation.
また、支持体１２の上端部には、その中心方向
に指向する上部フランジ１６を延設して、この上
部フランジ１６にコイルばね１８の一端部を係止
する。このコイルばね１８は、添付図面からも容
易に了解されるように、その他端部に向つて直径
が徐々に小さくなるように形成したいわゆる逆円
錐形状とし、このコイルばね１８の小径端部２０
に支持板２２を係着し、さらにこの支持板２２上
に液体を封入したシリンダ２４とピストン２６と
からなる従来公知の油圧を利用した構造を有する
流体圧緩衝器２８を配置して、この流体圧緩衝器
２８の上端部に圧力付与手段３０（例えば、交流
整流子電動機の場合はブラシ）を係着し、これを
被加圧部材３２（例えば、整流子面）に圧接す
る。 Further, an upper flange 16 extending toward the center of the support body 12 is provided at the upper end portion of the support body 12, and one end portion of a coil spring 18 is secured to the upper flange 16. As can be easily understood from the accompanying drawings, this coil spring 18 has a so-called inverted conical shape in which the diameter gradually decreases toward the other end.
A support plate 22 is attached to the support plate 22, and a fluid pressure buffer 28 having a conventionally known hydraulic structure including a cylinder 24 filled with liquid and a piston 26 is disposed on the support plate 22. A pressure application means 30 (for example, a brush in the case of an AC commutator motor) is attached to the upper end of the pressure buffer 28, and is pressed against a pressurized member 32 (for example, a commutator surface).
本考案に係る圧力保持装置は、以上のように構
成されるものであるが、支持体１２の形状を、例
えば第３図に示すように、互いに反対方向に屈曲
延在する突起部３４，３６を有する一対の板部材
３８，３８で形成し、これらの板部材３８の下部
突起３６を固定部材１０に穿設した孔部４０に嵌
着して固定部材１０と支持体１２との固定を図る
こともできる。 The pressure holding device according to the present invention is constructed as described above, but the shape of the support body 12 is changed to, for example, the protrusions 34, 36 which extend in opposite directions, as shown in FIG. The lower protrusion 36 of these plate members 38 is fitted into a hole 40 bored in the fixing member 10 to secure the fixing member 10 and the support 12. You can also do that.
このように構成した本考案に係る圧力保持装置
は、コイルばね１８の支点が支持体１２の上部フ
ランジ１６，３４部分にあり、流体圧緩衝器２８
の支点は支持板２２上に存在する。従つて、コイ
ルばね１８の弾撥力は、流体圧緩衝器２８の緩衝
力を介して圧力付与手段３０に伝達されることに
なり、たとえ圧力付与手段３０に摩耗が生じても
コイルばね１８の弾撥力により被加圧部材３２に
対して所定の圧力を作用させることができる。 In the pressure holding device according to the present invention configured as described above, the fulcrum of the coil spring 18 is located at the upper flange 16, 34 portion of the support body 12, and the hydraulic shock absorber 28
The fulcrum of is located on the support plate 22. Therefore, the elastic force of the coil spring 18 is transmitted to the pressure applying means 30 via the buffering force of the fluid pressure damper 28, and even if the pressure applying means 30 is worn out, the elastic force of the coil spring 18 is transmitted to the pressure applying means 30. A predetermined pressure can be applied to the pressurized member 32 by the elastic force.
前述した実施例から明らかなように、本考案に
よれば、流体圧緩衝器とコイルばねとの組合せに
おいて、圧力付与手段からの外部圧力は、流体圧
緩衝器に対しては流体を圧縮する方向に作用する
と共にコイルばねに対してはこれを伸張する方向
に作用するため、この圧縮弾力と伸張弾力とがバ
ランスするように緩衝力すなわち保持圧力が生
じ、これにより保持圧力はほぼ一定の圧力状態と
なる。従つて、この種の圧力保持装置は、圧力付
与手段の位置変位に対し保持圧力を一定とするこ
とが要求される圧力保持装置として広範に応用す
ることができる。
As is clear from the embodiments described above, according to the present invention, in the combination of a fluid pressure damper and a coil spring, the external pressure from the pressure applying means is applied to the fluid pressure damper in a direction that compresses the fluid. At the same time, it also acts on the coil spring in the direction of stretching it, so a buffering force, or holding pressure, is generated to balance the compression elasticity and extension elasticity, and as a result, the holding pressure remains almost constant. becomes. Therefore, this type of pressure holding device can be widely applied as a pressure holding device that is required to maintain a constant holding pressure with respect to positional displacement of the pressure applying means.
また、本考案においては、コイルばねに対し
て、従来技術のように、これをガイド部材で保持
したり、個別に相対する取付け対象物に固定する
ことなく、流体圧緩衝器に対する圧縮弾力とコイ
ルばねに対する伸張弾力とがそれぞれ逆方向に作
用するよう前記流体圧緩衝器の他端とコイルばね
の一端とを支持板のみを介して結合することによ
り、コイルばねの相対する取付け対象物の一方が
不定位な面の振動などにより多少の変位を生じて
もこれを有効に吸収することが可能となる。従つ
て、本考案の圧力保持装置は、これを共通の取付
け対象物に対し複数設けることにより、複雑な振
動を生ずる場合にこれを前述した緩衝力すなわち
保持圧力によつて適正に吸収し、所定の圧力状態
を確実に保持することができる。 In addition, in the present invention, unlike the conventional technology, the coil spring is not held by a guide member or individually fixed to an opposing mounting object, but the compressive elasticity against the fluid pressure shock absorber and the coil By connecting the other end of the fluid pressure shock absorber and one end of the coil spring through only the support plate so that the elasticity of extension acts on the spring in opposite directions, one of the objects to which the coil spring is attached is Even if a certain amount of displacement occurs due to vibration of an irregularly positioned surface, this can be effectively absorbed. Therefore, by providing a plurality of pressure holding devices on a common object, the pressure holding device of the present invention can properly absorb complex vibrations caused by the above-mentioned buffering force, that is, holding pressure, and maintain a predetermined level of vibration. The pressure state can be reliably maintained.
第１図は従来技術に係る圧力保持装置の断面
図、第２図は本考案に係る圧力保持装置の一実施
例を示す断面図、第３図は本考案に係る圧力保持
装置の別の実施例を示す断面図である。
１０……固定部材、１２……支持体、１４……
下部フランジ、１６……上部フランジ、１８……
コイルばね、２０……小径端部、２２……支持
板、２４……シリンダ、２６……ピストン、２８
……液体圧緩衝器、３０……圧力付与手段、３２
……被加圧部材、３４，３６……突起部、３８…
…板部材、４０……孔部。
Fig. 1 is a sectional view of a pressure holding device according to the prior art, Fig. 2 is a sectional view showing one embodiment of the pressure holding device according to the present invention, and Fig. 3 is another embodiment of the pressure holding device according to the present invention. It is a sectional view showing an example. 10...Fixing member, 12...Support body, 14...
Lower flange, 16... Upper flange, 18...
Coil spring, 20...Small diameter end, 22...Support plate, 24...Cylinder, 26...Piston, 28
...Liquid pressure buffer, 30...Pressure applying means, 32
...Pressed member, 34, 36...Protrusion, 38...
...Plate member, 40... Hole.
Claims (1)
着されたピストン２６とからなる流体圧緩衝器２
８の一端を被加圧部材３２に対向する圧力付与手
段３０の一部に当接配置し、前記流体圧緩衝器２
８の他端に支持板２２を介してコイルばね１８の
一端を結合し、このコイルばね１８の他端を前記
流体圧緩衝器２８への圧力付与に対し伸張ばね作
用を有するように円筒状支持体１２を介して固定
部材１０に懸架し、前記支持板２２において前記
流体圧緩衝器２８に対する圧縮弾力とコイルばね
１８に対する伸張弾力とがそれぞれ逆方向に作用
するよう構成することを特徴とする被加圧部材３
２に所定の圧力付与を行う圧力保持装置。 A fluid pressure buffer 2 consisting of a fluid-tight cylinder 24 and a piston 26 attached to the cylinder.
8 is placed in contact with a part of the pressure applying means 30 facing the pressurized member 32, and the fluid pressure buffer 2
One end of a coil spring 18 is connected to the other end of the coil spring 18 via a support plate 22, and the other end of the coil spring 18 is supported in a cylindrical shape so as to have an expansion spring action when pressure is applied to the fluid pressure buffer 28. The housing is suspended on the fixed member 10 via the body 12, and is configured such that the compressive elasticity on the hydraulic shock absorber 28 and the expansion elasticity on the coil spring 18 act in opposite directions on the support plate 22. Pressure member 3
A pressure holding device that applies a predetermined pressure to 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988104863U JPH0231619Y2 (en) | 1988-08-10 | 1988-08-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988104863U JPH0231619Y2 (en) | 1988-08-10 | 1988-08-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6429551U JPS6429551U (en) | 1989-02-22 |
| JPH0231619Y2 true JPH0231619Y2 (en) | 1990-08-27 |
Family
ID=31336961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988104863U Expired JPH0231619Y2 (en) | 1988-08-10 | 1988-08-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0231619Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4733430B2 (en) * | 2005-05-26 | 2011-07-27 | ポリマテック株式会社 | Viscous fluid filled damper and vibration damping device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5034684B2 (en) * | 1971-05-13 | 1975-11-11 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5034684U (en) * | 1973-07-28 | 1975-04-14 |
-
1988
- 1988-08-10 JP JP1988104863U patent/JPH0231619Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5034684B2 (en) * | 1971-05-13 | 1975-11-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6429551U (en) | 1989-02-22 |
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