JPH06185559A - Included angle damping device - Google Patents
Included angle damping deviceInfo
- Publication number
- JPH06185559A JPH06185559A JP35418892A JP35418892A JPH06185559A JP H06185559 A JPH06185559 A JP H06185559A JP 35418892 A JP35418892 A JP 35418892A JP 35418892 A JP35418892 A JP 35418892A JP H06185559 A JPH06185559 A JP H06185559A
- Authority
- JP
- Japan
- Prior art keywords
- spring
- operating shaft
- casing
- shaft
- force
- 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
Landscapes
- Vibration Prevention Devices (AREA)
- Vibration Dampers (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、作動軸に働く回動力を
減衰させる、簡潔な構成を有する狭角ダンピング装置に
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a narrow-angle damping device having a simple structure, which damps a rotational force acting on an operating shaft.
【0002】[0002]
【従来の技術】回転トルクの減衰のためのダンパには、
従来、コイル状のばねの弾性を利用したものがある。こ
のダンパではコイルを捩る方向に回転力が加えられ、そ
の捩れにより回転力を吸収して停止に到らしめるのであ
るが、ばねの弾性により反力が生じ、それが繰り返され
てばねが振動を起す難点があり、そのため特に衝撃力の
吸収には不向きであった。ばねを用いないダンパも公知
であり、その場合は摩擦或いは粘性抵抗により回転力を
吸収する。このため左右どちらの回転方向にもダンピン
グ作用が働くので、一方向の回転に対してのみダンピン
グ力を期待する場合には使用することができない。2. Description of the Related Art Dampers for damping rotational torque include
Conventionally, there is one that utilizes the elasticity of a coiled spring. With this damper, a rotational force is applied in the direction in which the coil is twisted, and the torsion absorbs the rotational force and reaches a stop.However, the elasticity of the spring causes a reaction force, which is repeated and the spring vibrates. However, it is not suitable for absorbing impact force. Dampers that do not use springs are also known, in which case the rotational force is absorbed by friction or viscous resistance. For this reason, a damping action is exerted in both the left and right rotation directions, so that it cannot be used when a damping force is expected only for rotation in one direction.
【0003】[0003]
【発明が解決しようとする課題】本発明は前記の点に着
目してなされたもので、その課題とするところは衝撃的
な回転力が働いても振動を生起することなく速やかにそ
れを減衰させることができると同時に、一方向の回転に
対するダンピング効果をも得ることができるようにする
ことである。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned points. The object of the present invention is to rapidly damp vibrations without causing vibration even when a shocking torque is exerted. It is possible to obtain a damping effect for rotation in one direction at the same time.
【0004】[0004]
【課題を解決するための手段】前記の課題を解決するた
め本発明は、円筒形の中空室11が内部に形成されたケ
ーシング10と、中空室11内に挿入されかつ挿入状態
で円筒軸周りに回動可能かつ同軸方向へ移動可能な作動
軸20と、ケーシング10と作動軸20との間に配置さ
れており、一端をケーシング10に、他端を作動軸20
に固定し、作動軸20の回動時にその回動力を受けて捩
れ、回動を停止させる方向へ作用する捩りばね30と、
作動軸20に固定されており、外周が中空室11の内周
面12に接触して摩擦抵抗を生じ、捩りばね30で受け
た回動力を吸収する、弾力性素材よりなるリング状の抵
抗部材40とにより、狭角ダンピング効果が得られるよ
うにしたものである。In order to solve the above-mentioned problems, the present invention is directed to a casing 10 in which a hollow cylindrical chamber 11 is formed, and a hollow shaft 11 which is inserted into the hollow chamber 11 and around a cylindrical axis in the inserted state. Is arranged between the casing 10 and the operating shaft 20, and the operating shaft 20 is rotatable about the same and is movable in the coaxial direction. One end is the casing 10 and the other end is the operating shaft 20.
A torsion spring 30 which is fixed to the torsion shaft 30 and is twisted by the turning force of the actuating shaft 20 when the actuating shaft 20 is turned, and acts in a direction to stop the turning.
A ring-shaped resistance member made of an elastic material, which is fixed to the actuating shaft 20 and whose outer periphery contacts the inner peripheral surface 12 of the hollow chamber 11 to generate frictional resistance and absorb the turning force received by the torsion spring 30. With 40, a narrow-angle damping effect can be obtained.
【0005】なお、狭角というのは作動軸20に回動力
が働いてから停止するまでに回動する角度が狭い範囲に
限定されることを示したもので、特定の角度を意味する
訳ではない。The narrow angle means that the rotation angle from the time when the rotational force acts on the operating shaft 20 to the time when it stops is limited to a narrow range, and does not mean a specific angle. Absent.
【0006】[0006]
【実施例】以下図面を参照して説明する。各図中、図
1、図2は本発明に係る装置の第1の実施例に関するも
ので、同装置は円筒型の中空室11が中央部分を貫通す
るように形成されたケーシング10を有する。中空室1
1は、主として後述する捩りばね30が収まる内径と、
同ばね30及び抵抗部材40を並設可能な長さを有する
ようにその大きさが設定される。円筒状ケーシング10
の一端部には軸受け部13が設けられており、また円筒
軸(図4の符号O)方向の固定部14が側面に板状に設
けられている。このようなケーシング10は適当な樹脂
又は金属の型成形により形成することができる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A description will be given below with reference to the drawings. 1 and 2 relate to a first embodiment of the device according to the present invention, which has a casing 10 in which a cylindrical hollow chamber 11 is formed so as to penetrate through a central portion thereof. Hollow chamber 1
1 is an inner diameter in which a torsion spring 30 described later mainly fits,
The size thereof is set so that the spring 30 and the resistance member 40 can be arranged side by side. Cylindrical casing 10
A bearing portion 13 is provided at one end of the, and a fixing portion 14 in the direction of the cylinder axis (reference numeral O in FIG. 4) is provided on the side surface in a plate shape. Such a casing 10 can be formed by molding a suitable resin or metal.
【0007】作動軸20は、前記の中空室11内に挿入
され、挿入状態で円筒軸O周りに回動可能かつ同軸方向
へ移動可能な軸状の部材である。作動軸20の一端部2
1は前記軸受け部13に軸承され、他端部22は中空部
11と同径の他端開口部15に同様に軸承されるように
なっており、それらの間の部分に後述するばね30と抵
抗部材40が軸方向に並設される。即ち、作動軸20の
一端部21側の小径軸部23と中空室11の内周面12
との間に捩りばね30が収められ、作動軸20の他端部
22側の大径部分に周方向の溝24が1又は2以上設け
られていてそこに抵抗部材40が収められる。The operating shaft 20 is a shaft-shaped member which is inserted into the hollow chamber 11 and is rotatable about the cylindrical axis O and coaxially movable in the inserted state. One end 2 of the operating shaft 20
1 is borne by the bearing portion 13, and the other end portion 22 is borne similarly by the other end opening portion 15 having the same diameter as the hollow portion 11, and a spring 30 to be described later is provided between them. The resistance members 40 are arranged side by side in the axial direction. That is, the small diameter shaft portion 23 on the one end portion 21 side of the operating shaft 20 and the inner peripheral surface 12 of the hollow chamber 11
A torsion spring 30 is housed between the two, and one or two or more circumferential grooves 24 are provided in the large diameter portion of the actuating shaft 20 on the other end 22 side, and the resistance member 40 is housed therein.
【0008】さらに作動軸20は、それを回動させる回
動力を作動軸20に与える入力軸25を一端に有する。
実施例1の入力軸25は、作動軸20の同軸上に一体に
形成されており、回動力伝達のための雄型の係合部26
を有する。これは例示のように雌型の係合部27であっ
ても良い。28は係合部26に係合可能な入力手段で、
一つはレバー、他の一つは歯車として示されている。勿
論入力手段28はこれらに限られない。Further, the actuating shaft 20 has an input shaft 25 at one end for giving the actuating shaft 20 a turning force for rotating the actuating shaft 20.
The input shaft 25 of the first embodiment is integrally formed coaxially with the actuating shaft 20, and has a male engaging portion 26 for transmitting rotational power.
Have. This may be the female engagement portion 27 as illustrated. 28 is an input means that can be engaged with the engaging portion 26,
One is shown as a lever and the other as a gear. Of course, the input means 28 is not limited to these.
【0009】前述した捩りばね30は、作動軸20の小
径部23の周囲に捲装するように配置されたコイルばね
からなる。その一端31はケーシング10の軸受け部1
3に設けられた係止部33に、また他端32は作動軸2
0の大径部に設けられた係止部34に夫々係止すること
により固定されている。捩りばね30のコイル巻き数や
太さなどは、予定される回動力を狭い回動角度で減衰さ
せるのに十分なばね強さが得られるように設定される。The above-mentioned torsion spring 30 is a coil spring arranged so as to be wound around the small diameter portion 23 of the operating shaft 20. The one end 31 is the bearing portion 1 of the casing 10.
3 to the locking portion 33, and the other end 32 to the operating shaft 2
They are fixed by being locked to the locking portions 34 provided on the large diameter portion of 0, respectively. The number of coils wound and the thickness of the torsion spring 30 are set so that a sufficient spring strength can be obtained to damp the expected turning force at a narrow turning angle.
【0010】抵抗部材40は、作動軸20の太軸部に設
けられた前記の溝24に夫々嵌め付けて装着される。例
示の抵抗部材40は中空室11の内周面12に弾力的に
接して抵抗を生ずる、2個の0−リングからなる。抵抗
部材40としては、その0−リングに代えてパッキング
リングを使用しても良く、また0−リングやパッキング
リングに粘性抵抗を発揮する粘性体を塗布することがで
きる。The resistance members 40 are fitted and mounted in the grooves 24 provided in the thick shaft portion of the operating shaft 20, respectively. The illustrated resistance member 40 is composed of two O-rings that elastically contact the inner peripheral surface 12 of the hollow chamber 11 to generate resistance. As the resistance member 40, a packing ring may be used instead of the 0-ring, and a viscous body exhibiting viscous resistance can be applied to the 0-ring and the packing ring.
【0011】このように構成された本発明に係る装置
は、作動軸20をケーシング10の中空室11内に捩り
ばね30、抵抗部材40とともに組み込み、一端部21
に形成されている孔41に止め具42をねじ込むことに
より組み立てられる。今ケーシング10を固定し、入力
軸25に、開閉蓋で代表される回動部材50を図3実線
の開蓋状態で捩りばね30が中立であるように取り付け
るものとする。このとき、捩りばね30の回動側の端部
32は図4の位置Aにあるとすれば、回動部材50を閉
じるため作動軸20が右回動するにともない、前記端部
32は位置Bまでθ度回動して停止する。即ちこの間に
捩りばね30は回動力を受けて捩れ、これによって回動
力を吸収すると同時に蓄力され、また抵抗部材40は内
周面12に圧接して抵抗を加えるので、停止時に反動が
起こらず、強力なダンピング作用が得られる。以上の作
用は作動軸20を左回動させたときでも同じである。In the apparatus according to the present invention thus constructed, the operating shaft 20 is assembled in the hollow chamber 11 of the casing 10 together with the torsion spring 30 and the resistance member 40, and the one end 21 is formed.
It is assembled by screwing the stopper 42 into the hole 41 formed in the. Now, the casing 10 is fixed, and the rotating member 50 represented by an open / close lid is attached to the input shaft 25 so that the torsion spring 30 is in a neutral state with the lid shown by the solid line in FIG. At this time, if the end portion 32 of the torsion spring 30 on the rotation side is located at the position A in FIG. 4, the end portion 32 is moved to the position as the operating shaft 20 is rotated rightward to close the rotation member 50. Rotate to B by θ degrees and stop. That is, during this period, the torsion spring 30 is twisted by receiving the turning force, thereby absorbing the turning force and at the same time accumulating the force, and the resistance member 40 presses against the inner peripheral surface 12 to apply resistance, so that no reaction occurs when stopped. , Strong damping effect is obtained. The above operation is the same when the operating shaft 20 is rotated counterclockwise.
【0012】次に図5、図6により第2の実施例につい
て説明する。この例は作動軸20の端部に設ける入力軸
を必要最小限度の大きさとし、その雄型係合部26(勿
論雌型係合部27でも良い)にレバー50を係合相手2
9である係合孔によって取り付けた構造を有し、長さを
最短にすることができる。レバー50の取り付け基部5
1は中空室11の一方の開口部15を閉じる部材を兼ね
ており、中空室11の他の一方の開口には作動軸20の
端部に設けられた、軸部より大径のフランジ状部分52
が係止している。53は同部分52を収めた空所、54
は作動軸係合部26の端部に形成されたねじ穴で、レバ
ー50の止めねじ55が螺合する。またこの例の固定部
14はケーシングの端部にフランジ状に一体形成されて
いる。56は固定側、57は止めねじを示す。Next, a second embodiment will be described with reference to FIGS. In this example, the input shaft provided at the end of the actuating shaft 20 has the minimum necessary size, and the lever 50 is engaged with the male engaging portion 26 (of course, the female engaging portion 27).
It has a structure that is attached by the engagement hole which is 9, and the length can be minimized. Mounting base 5 for lever 50
Reference numeral 1 also serves as a member that closes one opening 15 of the hollow chamber 11, and a flange-shaped portion that is provided at the other end of the hollow chamber 11 at the end of the operating shaft 20 and has a diameter larger than that of the shaft. 52
Is locked. 53 is a void containing the same portion 52, 54
Is a screw hole formed at the end of the operating shaft engaging portion 26, into which the set screw 55 of the lever 50 is screwed. Further, the fixing portion 14 of this example is integrally formed in a flange shape at the end portion of the casing. 56 is a fixed side and 57 is a set screw.
【0013】第2の実施例の他の構成即ち、軸受け部1
3に軸承される太軸部21′の作動軸全長に占める割合
が長く、また中空室11内に組み込まれる作動軸20と
捩りばね30及び抵抗部材40は前記実施例と位置関係
が逆であるほかは同じで良いので符号を援用し、詳細な
説明を省略する。なお、抵抗部材40として粘性抵抗を
発揮する粘性体を併用できることも前記実施例と同様で
ある。第2の実施例の場合、全長が短くしかも単純な小
筒状に構成できるため、軸受金具などの代替としても使
用可能であり、作用は前記第1の実施例の場合と全く同
様である。Another structure of the second embodiment, that is, the bearing 1
The ratio of the thick shaft portion 21 'borne by 3 to the total length of the working shaft is long, and the working shaft 20, the torsion spring 30, and the resistance member 40 incorporated in the hollow chamber 11 have the opposite positional relationship to the above embodiment. Since the others are the same, the reference numerals are used and the detailed description is omitted. Note that the viscous body that exhibits viscous resistance can be used as the resistance member 40 in the same manner as in the above embodiment. In the case of the second embodiment, since it can be constructed in a small tubular shape having a short overall length and a simple shape, it can be used as a substitute for a bearing fitting or the like, and the operation is exactly the same as in the case of the first embodiment.
【0014】[0014]
【発明の効果】本発明は以上の如く構成されかつ作用す
るものであから、作動軸20に回動力が加わると捩りば
ね30が弾性変形することによりその回動力を吸収する
と同時に、作動軸20に並設されている抵抗部材40が
ケーシング10の中空室内周面12に弾力的に接触して
摺動することにより前記回動力を吸収するので回動力が
衝撃的に加えられた場合でも、捩りばね30に振動を起
こさせることなく速やかな減衰効果を奏する。特に捩り
ばね30の中立点から回動力を作用させることにより、
回動方向にはダンピング効果を得ることができると同時
に、逆方向へは抵抗少なく戻り回動するので一方向のみ
のダンピング効果が得られる特徴がある。Since the present invention is constructed and operates as described above, when a rotational force is applied to the operating shaft 20, the torsion spring 30 elastically deforms to absorb the rotational force, and at the same time, the operating shaft 20. The resistance member 40 arranged side by side absorbs the turning force by elastically contacting and sliding on the hollow chamber inner peripheral surface 12 of the casing 10, so that the twisting force is twisted even when the turning force is shocked. A rapid damping effect is achieved without causing the spring 30 to vibrate. In particular, by applying a turning force from the neutral point of the torsion spring 30,
A damping effect can be obtained in the turning direction, and at the same time, the damping effect can be obtained in only one direction because the resistance is returned and rotated in the opposite direction with less resistance.
【図1】本発明に係るダンピング装置の第1の実施例を
示す分解斜視図。FIG. 1 is an exploded perspective view showing a first embodiment of a damping device according to the present invention.
【図2】同上の縦断面図。FIG. 2 is a vertical sectional view of the above.
【図3】同上装置の使用状態に関する側面説明図。FIG. 3 is a side view for explaining a usage state of the same apparatus.
【図4】図2のVI−VI線に沿う、作用を説明する横
断面図。FIG. 4 is a transverse cross-sectional view for explaining the action, taken along line VI-VI in FIG.
【図5】本発明装置の第2の実施例を示す縦断面図。FIG. 5 is a longitudinal sectional view showing a second embodiment of the device of the present invention.
【図6】同上の分解斜視図。FIG. 6 is an exploded perspective view of the above.
Claims (3)
ケーシング10と、中空室11内に挿入されかつ挿入状
態で円筒軸周りに回動可能かつ同軸方向へ移動可能な作
動軸20と、ケーシング10と作動軸20との間に配置
されており、一端をケーシング10に、他端を作動軸2
0に固定し、作動軸20の回動時にその回動力を受けて
捩れ、回動を停止させる方向へ作用する捩りばね30
と、作動軸20に固定されており、外周が中空室11の
内周面12に接触して摩擦抵抗を生じ、捩りばね30で
受けた回動力を吸収する、弾力性素材よりなるリング状
の抵抗部材40とによって構成された狭角ダンピング装
置。1. A casing 10 having a cylindrical hollow chamber 11 formed therein, and an operating shaft 20 which is inserted into the hollow chamber 11 and is rotatable about a cylindrical axis and movable coaxially in the inserted state. , Which is disposed between the casing 10 and the operating shaft 20, one end of which is the casing 10 and the other end of which is the operating shaft 2.
A torsion spring 30 that is fixed to 0 and twists when the actuating shaft 20 is turned and receives a turning force to act to stop the turning.
And a ring-shaped elastic material that is fixed to the operating shaft 20 and that has an outer periphery that contacts the inner peripheral surface 12 of the hollow chamber 11 to generate frictional resistance and that absorbs the rotational force received by the torsion spring 30. A narrow-angle damping device constituted by the resistance member 40.
装されるように配置されたコイルばねであり、その一端
31はケーシング10に、他端32は作動軸20に係止
により固定し、同ばね30にその中立状態で加えられた
回動力によりばね30を蓄力し、作動軸20を原点に復
帰させるときに、前記蓄力を復帰力に加算可能として復
帰トルクを減少させ、一方向にのみダンピング効果が働
くようにした請求項第1項記載の狭角ダンピング装置。2. The torsion spring 30 is a coil spring arranged so as to be wound around the operating shaft 20, one end 31 of which is fixed to the casing 10 and the other end 32 of which is fixed to the operating shaft 20 by locking. Then, when the spring 30 stores a force by the turning force applied to the spring 30 in its neutral state to return the operating shaft 20 to the origin, the stored force can be added to the return force to reduce the return torque, The narrow-angle damping device according to claim 1, wherein the damping effect works only in one direction.
ングリングであり、粘性抵抗を発揮する粘性体がその接
触面に塗布されている請求項第1項記載の狭角ダンピン
グ装置。3. The narrow-angle damping device according to claim 1, wherein the resistance member 40 is an O-ring or a packing ring, and a viscous body exhibiting viscous resistance is applied to its contact surface.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP35418892A JPH06185559A (en) | 1992-12-15 | 1992-12-15 | Included angle damping device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP35418892A JPH06185559A (en) | 1992-12-15 | 1992-12-15 | Included angle damping device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH06185559A true JPH06185559A (en) | 1994-07-05 |
Family
ID=18435882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP35418892A Pending JPH06185559A (en) | 1992-12-15 | 1992-12-15 | Included angle damping device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH06185559A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3318179A1 (en) * | 1983-05-19 | 1984-05-30 | Dieter 3430 Witzenhausen Kull | Engine block, ribbed piston with displaceable bearing base, piston ring with spring and leaf valves (intake and pressure valve) |
WO2002036983A1 (en) * | 2000-10-26 | 2002-05-10 | Piolax, Inc. | Rotary damper |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60169792A (en) * | 1984-02-14 | 1985-09-03 | 吉田 錦吾 | Manufacture of rare metal and element by atomic fusion |
-
1992
- 1992-12-15 JP JP35418892A patent/JPH06185559A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60169792A (en) * | 1984-02-14 | 1985-09-03 | 吉田 錦吾 | Manufacture of rare metal and element by atomic fusion |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3318179A1 (en) * | 1983-05-19 | 1984-05-30 | Dieter 3430 Witzenhausen Kull | Engine block, ribbed piston with displaceable bearing base, piston ring with spring and leaf valves (intake and pressure valve) |
WO2002036983A1 (en) * | 2000-10-26 | 2002-05-10 | Piolax, Inc. | Rotary damper |
US6840353B2 (en) | 2000-10-26 | 2005-01-11 | Piolax, Inc. | Rotary damper |
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Date | Code | Title | Description |
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A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 19970204 |