JPH05179858A - Multistage rotary damper and manufacture thereof - Google Patents
Multistage rotary damper and manufacture thereofInfo
- Publication number
- JPH05179858A JPH05179858A JP8507992A JP8507992A JPH05179858A JP H05179858 A JPH05179858 A JP H05179858A JP 8507992 A JP8507992 A JP 8507992A JP 8507992 A JP8507992 A JP 8507992A JP H05179858 A JPH05179858 A JP H05179858A
- Authority
- JP
- Japan
- Prior art keywords
- rotary shaft
- fixed plate
- shaft
- plate
- cylindrical body
- 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.)
- Granted
Links
Landscapes
- Fluid-Damping Devices (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は回転蓋等の回転体が自由
回転することによる落下衝撃や建物の室内ドア等の閉成
回転の最終時における衝突衝撃等を緩和するために用い
られる多段式ロータリダンパに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multistage type used to mitigate a drop impact caused by free rotation of a rotating body such as a rotary lid or a collision impact at the end of closing rotation of a building interior door. Regarding rotary damper.
【０００２】[0002]
【従来の技術】一般に、ピアノ、レコードプレーヤー、
ポータブルパソコン、コピーマシンその他の事務機器の
開閉用の回転蓋、洋式トイレの便座や便蓋等は、回転軸
によって一端基部が支持されるとともに、他端は遊端と
されて９０〜１２０度前後の回転角の範囲で上下方向に
回動可能に設けられている。しかしながら、このような
回転蓋等は閉成する際に、最後まで手等を添えて閉じな
い場合には、自由落下回転物となり、閉成回転の最終点
で衝突して大きな衝撃音を生じたり、回転蓋や機器本体
に破損を生じたりする場合がある。そのため、回転基部
にロータリダンパを配設し、閉成動作を遅動させる手段
が用いられている。2. Description of the Related Art Generally, a piano, a record player,
Rotating lids for opening and closing portable computers, copiers, and other office equipment, toilet seats and toilet lids for western-style toilets are supported at one end by a rotating shaft and the other end is a free end at around 90 to 120 degrees. It is provided so as to be vertically rotatable within the range of the rotation angle. However, when closing such a rotating lid with a hand etc. until the end when it is closed, it becomes a free-falling rotating object, colliding at the final point of closing rotation and making a large impact noise. , The rotating lid or the main body of the device may be damaged. Therefore, a means for arranging a rotary damper on the rotation base to delay the closing operation is used.
【０００３】かかるロータリダンパの一つとして、いわ
ゆる多段式のものがある。これは、回転軸の周囲に、該
回転軸とともに回転するように一定間隔をおいて複数枚
装填される可動板と、該各可動板間に、交互に配設され
る固定板と、該各可動板と固定板との対向面間に配設さ
れる粘性液体と、外筒体の開口部にはめ付けられる蓋部
材と、から構成される。One of such rotary dampers is a so-called multistage type. This is because a plurality of movable plates are mounted around the rotary shaft at regular intervals so as to rotate together with the rotary shaft, fixed plates that are alternately arranged between the movable plates, and The viscous liquid is disposed between the facing surfaces of the movable plate and the fixed plate, and the lid member fitted to the opening of the outer cylinder body.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、かかる
多段式ロータリダンパは、可動板と固定板とを交互に配
設する必要があるため、従来、内周面に軸方向に沿って
係合用溝部が形成された外筒体と、外周面に軸方向に沿
って係合用溝部が形成された回転軸とを用い、まず、外
筒体内に、該回転軸を装填し、しかる後、該回転軸の周
囲に、可動板を、該可動板内周に突設した突片が回転軸
外周面に形成した溝部に係合するようにして装填し、次
に、固定板を、該固定板外周に突設した突片を外筒体内
周面に形成した溝部に係合するようにして、回転軸周囲
に装填し、以降、可動板、固定板の順でかかる動作を繰
り返すことにより製造されていた。したがって、部品点
数が多く、製造工程が複雑で、組立てが面倒であるとい
う問題があった。However, in such a multi-stage rotary damper, it is necessary to alternately arrange the movable plate and the fixed plate. Therefore, conventionally, a groove for engagement is formed on the inner peripheral surface along the axial direction. Using the formed outer cylindrical body and the rotating shaft having the groove for engagement formed on the outer peripheral surface along the axial direction, first, the rotating shaft is loaded in the outer cylindrical body, and thereafter, the rotating shaft A movable plate is mounted around the periphery of the rotary shaft such that the protrusions protruding from the inner periphery of the movable plate engage with the grooves formed on the outer peripheral surface of the rotating shaft. It was manufactured by engaging the provided protruding piece with the groove formed on the outer peripheral surface of the outer cylinder body, loading it around the rotating shaft, and thereafter repeating such operations in the order of the movable plate and the fixed plate. Therefore, there are problems that the number of parts is large, the manufacturing process is complicated, and the assembly is troublesome.
【０００５】本発明は上記した課題を解消するためにな
されたものであり、部品点数を減らし、容易に製造する
ことができる多段式ロータリダンパ及びその製造方法を
提供することを目的とする。The present invention has been made to solve the above problems, and an object of the present invention is to provide a multi-stage rotary damper which can be easily manufactured with a reduced number of parts, and a manufacturing method thereof.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、本発明の多段式ロータリダンパは、少なくとも一端
が開口する外筒体と、少なくとも一端が該外筒体から突
出するように配設された回転軸と、外筒体内において該
回転軸とともに回転軸周囲に固定されて回転可能に配設
された複数枚の可動板と、回転軸の直径以上の径で形成
された回転軸挿通用の挿通孔を有するとともに、該回転
軸の周囲に可動板と交互に配設される固定板と、該可動
板と固定板との対向面間に介在された粘性液体と、前記
外筒体の開口部にはめ付けられる蓋部材と、を有して構
成される多段式ロータリダンパにおいて、前記回転軸と
可動板とが一体的に形成され、かつ前記固定板が外周部
から内周部にわたり前記回転軸の径以上の幅で切り欠か
られた切欠き部を有し、該回転軸の側方から該切欠き部
に回転軸を通過させて可動板間に装填されていることを
特徴とする。また、その製造方法は、少なくとも一端が
開口している外筒体と、該外筒体から少なくとも一端が
突出するように配設された回転軸と、外筒体内において
該回転軸とともに回転軸周囲に固定されて回転可能に配
設された複数枚の可動板と、該回転軸挿通用の挿通孔を
有するとともに該回転軸の周囲に可動板と交互に配設さ
れる固定板と、該可動板と固定板との対向面間に介在さ
れた粘性液体と、前記外筒体の開口部にはめ付けられる
蓋部材と、を有して構成される多段式ロータリダンパの
製造方法において、複数枚の可動板を回転軸と一体的に
形成する工程と、回転軸の径以上に形成された回転軸の
挿通孔と、板部分の一部であって外周部から内周部にわ
たり該回転軸の径以上の幅で切り欠かれた切欠き部とが
形成されている固定板を、該回転軸の側方から該切欠き
部に該回転軸を通過させて各可動板間に交互に配設する
工程と、外筒体を回転軸方向から該固定板、可動板及び
回転軸の周囲に装着する工程と、該可動板と固定板との
対向面間に介在するように粘性液体を注入する工程と、
外筒体の開口部に蓋部材をはめ付ける工程と、を有する
ことを特徴とする。In order to achieve the above object, a multistage rotary damper of the present invention is provided with an outer cylindrical body having at least one end opened and at least one end protruding from the outer cylindrical body. A rotary shaft, a plurality of movable plates fixed rotatably around the rotary shaft together with the rotary shaft in the outer cylindrical body, and a rotary shaft for inserting the rotary shaft having a diameter not less than the diameter of the rotary shaft. A fixed plate which has an insertion hole and is alternately arranged with a movable plate around the rotation shaft, a viscous liquid interposed between the facing surfaces of the movable plate and the fixed plate, and an opening of the outer cylinder body. In a multi-stage rotary damper having a lid member fitted to the portion, the rotary shaft and the movable plate are integrally formed, and the fixed plate is rotated from the outer peripheral portion to the inner peripheral portion. Has a notch that is not less than the diameter of the shaft. , Characterized in that passed through the rotary shaft is loaded to the movable plates in the cutout portion from the side of the rotary shaft. Further, the manufacturing method is such that an outer cylindrical body having at least one end opened, a rotary shaft arranged so as to project at least one end from the outer cylindrical body, and a rotary shaft surrounding the rotary shaft in the outer cylindrical body. A plurality of movable plates that are fixed to the movable plate and are rotatably arranged; a fixed plate that has an insertion hole for inserting the rotation shaft and that is arranged alternately with the movable plates around the rotation shaft; In a method for manufacturing a multi-stage rotary damper configured to include a viscous liquid interposed between opposed surfaces of a plate and a fixed plate, and a lid member fitted to the opening of the outer cylindrical body, a plurality of sheets are provided. The step of integrally forming the movable plate of the rotary shaft, the insertion hole of the rotary shaft having a diameter equal to or larger than the diameter of the rotary shaft, and the part of the plate portion extending from the outer peripheral portion to the inner peripheral portion of the rotary shaft. A fixing plate formed with a notch having a width equal to or larger than the diameter, A step of passing the rotary shaft through the cutout portion from the side of the shaft and arranging the rotary plates alternately between the movable plates; and an outer cylinder body around the fixed plate, the movable plate and the rotary shaft in the direction of the rotary shaft. A step of mounting, a step of injecting a viscous liquid so as to be interposed between the facing surfaces of the movable plate and the fixed plate,
And a step of fitting a lid member to the opening of the outer cylindrical body.
【０００７】[0007]
【作用】かかる構成では、回転軸と可動板とが一体的に
形成されているため、固定板を各可動板間に挿入し、後
から外筒体を装着するのみで組立てることができる。In this structure, since the rotary shaft and the movable plate are integrally formed, the fixed plate can be inserted between the movable plates and the outer cylinder body can be mounted afterwards.
【０００８】[0008]
【実施例】以下、図面に示した実施例に基づき本発明を
さらに詳細に説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the embodiments shown in the drawings.
【０００９】図１及び図２は本発明の一実施例に係る多
段式ロータリダンパ１を示し、外筒体２、回転軸４、可
動板５、固定板６等を有して構成される。1 and 2 show a multi-stage rotary damper 1 according to an embodiment of the present invention, which comprises an outer cylinder body 2, a rotary shaft 4, a movable plate 5, a fixed plate 6 and the like.
【００１０】外筒体２は、図１に示すように、一端に開
口部２ａが、他端に軸受部２ｃを有する底壁部２ｂが形
成された有底筒状体に形成され、開口部２ａには、軸挿
通孔３ａを有する蓋部材３が装着される構造である。な
お、本実施例では、底壁部２ｂを一体成形したものを用
いているが、別体に成形して装着してもよいことはもち
ろんである。また、この外筒体２の内周面には後述する
固定板６に突設した突片６ｂと係合する溝２ｄが軸方向
に沿って形成されている。As shown in FIG. 1, the outer cylindrical body 2 is formed as a bottomed cylindrical body having an opening 2a at one end and a bottom wall 2b having a bearing 2c at the other end. The lid member 3 having the shaft insertion hole 3a is attached to the 2a. Although the bottom wall portion 2b is integrally molded in this embodiment, it is needless to say that the bottom wall portion 2b may be separately molded and mounted. In addition, a groove 2d that engages with a protruding piece 6b provided on a fixed plate 6 to be described later is formed on the inner peripheral surface of the outer cylindrical body 2 along the axial direction.
【００１１】回転軸４は、少なくともその一端が図１に
示すように、蓋部材３の軸挿通孔３ａを介して外筒体２
外へ突出するように所定の長さに形成され、後述するよ
うに、その一端が外筒体２の底壁部２ｂの軸受部２ｃに
係合するように配設される。At least one end of the rotary shaft 4 is, as shown in FIG. 1, through the shaft insertion hole 3a of the lid member 3 the outer cylindrical body 2.
It is formed to have a predetermined length so as to project to the outside, and is arranged so that one end thereof engages with the bearing portion 2c of the bottom wall portion 2b of the outer tubular body 2 as described later.
【００１２】可動板５は該回転軸４に所定間隔をおい
て、複数枚が一体的に取付けられている。取付け手段は
特に限定されるものではないが、回転軸４の表面に溝
（図示せず）を形成すると共に、該可動板５の内周部に
該溝に係合する突片（図示せず）を突設して、回転軸４
を形成後、該可動板５をはめ合わせて固定することがで
きる。また、両者を一体成形により成形すれば、製造工
程をより簡略化することができるため好ましい。A plurality of movable plates 5 are integrally attached to the rotary shaft 4 at a predetermined interval. The mounting means is not particularly limited, but a groove (not shown) is formed on the surface of the rotary shaft 4 and a protrusion (not shown) engaged with the groove is formed on the inner peripheral portion of the movable plate 5. ) Is projected, and the rotary shaft 4
After forming, the movable plate 5 can be fitted and fixed. In addition, it is preferable that both are formed by integral molding because the manufacturing process can be further simplified.
【００１３】固定板６は、図２に示したように、略環状
で、かつ中央部にその内径が回転軸４の外径以上で形成
された軸挿通孔６ａを有すると共に、外周部にはその外
方へ突出する突片６ｂが２箇所に形成されている。ま
た、固定板６の板部分６ｃの一部には外周部から内周部
（軸挿通孔（６ａ））にわたり回転軸４の径以上の幅を
有する切欠き部６ｄが形成されている。そして、この固
定板６は、上記した各可動板５、５の間隙に、回転軸４
の側方から、該固定板６の切欠き部６ｄに該回転軸４を
通過させて、回転軸４の周囲に装着される。As shown in FIG. 2, the fixed plate 6 has a substantially annular shape, and has a shaft insertion hole 6a formed in the center thereof with an inner diameter equal to or larger than the outer diameter of the rotary shaft 4, and has an outer peripheral portion. Projecting pieces 6b projecting outward are formed at two locations. Further, a cutout portion 6d having a width equal to or larger than the diameter of the rotary shaft 4 is formed in a part of the plate portion 6c of the fixed plate 6 from the outer peripheral portion to the inner peripheral portion (shaft insertion hole (6a)). The fixed plate 6 is placed in the gap between the movable plates 5 and 5 described above in the rotation shaft 4
The rotary shaft 4 is passed through the cutout portion 6d of the fixed plate 6 from the side of, and is mounted around the rotary shaft 4.
【００１４】本実施例の多段式ロータリダンパ１は次の
ようにして組立てられる。まず、上記したように、可動
板５が一体的に取付けられた回転軸４を準備する。次
に、各可動板５、５の間隙へ、固定板６の切欠き部６ｄ
に回転軸４を通過させるようにして、該固定板６を回転
軸周囲に装着する。そして、かかる状態で、外筒体２
を、その内周面に形成した溝２ｄが固定板６の突片６ｂ
に係合するようにして、該固定板６の外側へはめ合わせ
る。最後に、シール用のＯリング７及び蓋部材３を外筒
体２の開口部２ａにはめ合わせ、これにより本実施例の
多段式ロータリダンパ１が組立てられる。なお、シリコ
ンオイル等の高粘度の液体から構成される粘性液体（図
示せず）は、外筒体２の底部に形成した粘性液体注入孔
２ｅから注入することにより、可動板５と固定板６との
対向面間に充填される。The multistage rotary damper 1 of this embodiment is assembled as follows. First, as described above, the rotary shaft 4 to which the movable plate 5 is integrally attached is prepared. Next, the cutout portion 6d of the fixed plate 6 is inserted into the gap between the movable plates 5 and 5.
The fixing plate 6 is mounted around the rotary shaft so that the rotary shaft 4 is passed through. Then, in such a state, the outer cylindrical body 2
The groove 2d formed on the inner peripheral surface of the
The fixing plate 6 is fitted to the outside so as to be engaged with. Finally, the O-ring 7 for sealing and the lid member 3 are fitted into the opening 2a of the outer cylindrical body 2 to assemble the multistage rotary damper 1 of this embodiment. A viscous liquid (not shown) composed of a high-viscosity liquid such as silicon oil is injected from a viscous liquid injection hole 2e formed in the bottom portion of the outer cylindrical body 2 to move the movable plate 5 and the fixed plate 6. Is filled between the surfaces facing each other.
【００１５】図３は本発明の他の実施例を示し、蓋部材
１３として、固定板１６の表面に当接可能な突起物１３
ｂが内側に形成されているものを用いている。なお、図
において、１２は外筒体、１４は回転軸、１５は可動板
である。FIG. 3 shows another embodiment of the present invention. As the lid member 13, a projection 13 that can be brought into contact with the surface of the fixed plate 16.
The one in which b is formed inside is used. In the figure, 12 is an outer cylinder, 14 is a rotating shaft, and 15 is a movable plate.
【００１６】外筒体１２は、図３に示すように、一端に
開口部１２ａが、他端側の内部に凸部１２ｃ及び他端側
の外部に外方へ延出するフランジ１２ｅを有する底壁部
１２ｂが形成された有底略筒状体に形成され、開口部１
２ａには、軸挿通孔１３ａを有する蓋部材１３が装着さ
れる構造である。本実施例では、底壁部１２ｂを一体成
形したものを用いているが、別体に成形して装着しても
よいことは上記実施例と同様である。As shown in FIG. 3, the outer cylindrical body 12 has a bottom having an opening 12a at one end, a convex portion 12c inside the other end, and a flange 12e extending outwardly outside the other end. The opening 1 is formed into a bottomed substantially cylindrical body having a wall 12b.
2a has a structure in which a lid member 13 having a shaft insertion hole 13a is mounted. In this embodiment, the bottom wall portion 12b integrally formed is used, but the bottom wall portion 12b may be separately formed and mounted as in the above embodiment.
【００１７】蓋部材１３は、中央部に軸挿通孔１３ａを
有し、外筒体１２の開口部１２ａに装着可能なものとし
て形成されている点において、上記実施例と同様である
が、本実施例では、さらに、蓋部材１３の内側（外筒体
１２の底壁部１２ｂ側）に突起物１３ｂを一体的に形成
し、その先端が固定板１６の表面に当接し得る構造を採
っている。なお、該突起物１３ｂとしては、略円柱状等
に形成した単なる突片であってもよく、また、蓋部材１
３の内側ほぼ全周にわたって突設した略環状のリブであ
ってもよい。The lid member 13 is similar to the above-described embodiment in that it has a shaft insertion hole 13a in the center and is formed so that it can be mounted in the opening 12a of the outer tubular body 12, In the embodiment, the protrusion 13b is integrally formed inside the lid member 13 (on the side of the bottom wall 12b of the outer cylindrical body 12), and the tip of the protrusion 13b can abut the surface of the fixing plate 16. There is. The protrusion 13b may be a simple protrusion formed in a substantially columnar shape, or the lid member 1
It may be a substantially annular rib projecting over substantially the entire circumference of the inside of 3.
【００１８】回転軸１４は図３に示すように、少なくと
もその一端が蓋部材１３の軸挿通孔１３ａを介して外筒
体１２外へ突出するように所定の長さに形成されてい
る。また、その他端側からは所定深さの溝部１４ａが形
成され、この溝部１４ａが外筒体１２の底壁部１２ｂに
突設した凸部１２ｃに係合せしめられて配設される。As shown in FIG. 3, the rotary shaft 14 is formed to have a predetermined length so that at least one end thereof protrudes to the outside of the outer cylindrical body 12 through the shaft insertion hole 13a of the lid member 13. A groove portion 14a having a predetermined depth is formed from the other end side, and the groove portion 14a is disposed so as to be engaged with a convex portion 12c protruding from the bottom wall portion 12b of the outer cylindrical body 12.
【００１９】可動板１５は上記実施例と同様に形成され
ており、本実施例では、回転軸１４に対し、所定間隔を
おいて、２枚取付けられている。また、固定板１６も、
上記実施例と同様、略環状に形成されていると共に、軸
挿通孔１６ａと、回転軸１４を通過させるために形成さ
れた切欠き部（図示せず）とを有し、上記した２枚の可
動板１５、１５の間隙に装着されている。The movable plate 15 is formed in the same manner as in the above embodiment, and in this embodiment, two movable plates 15 are attached to the rotary shaft 14 at a predetermined interval. Also, the fixed plate 16
Similar to the above-mentioned embodiment, it is formed in a substantially annular shape and has a shaft insertion hole 16a and a cutout portion (not shown) formed for allowing the rotary shaft 14 to pass therethrough. It is mounted in the gap between the movable plates 15, 15.
【００２０】本実施例の多段式ロータリダンパ１１は次
のようにして組立てられる。まず、上記した実施例と同
様に、２枚の可動板１５が一体的に取付けられた回転軸
１４を準備する。次に、２枚の可動板１５、１５の間隙
へ、固定板１６の切欠き部に回転軸１４を通過させるよ
うにして、該固定板１６を回転軸周囲に装着する。そし
て、かかる状態で、外筒体１２を該固定板１６の外側へ
はめ合わせる。これにより、固定板１６は、外筒体１２
の内周に設けた段差部（架台部）１２ｄ上に周縁部が係
止される。最後に、シール用のＯリング１７及び蓋部材
１３を外筒体１２の開口部１２ａにはめ合わせる。The multistage rotary damper 11 of this embodiment is assembled as follows. First, similarly to the above-described embodiment, the rotary shaft 14 to which the two movable plates 15 are integrally attached is prepared. Next, the fixed plate 16 is mounted around the rotary shaft so that the rotary shaft 14 is passed through the notch of the fixed plate 16 into the gap between the two movable plates 15 and 15. Then, in this state, the outer cylindrical body 12 is fitted to the outside of the fixed plate 16. As a result, the fixed plate 16 is fixed to the outer cylindrical body 12
The peripheral portion is locked on the stepped portion (mounting portion) 12d provided on the inner circumference of the. Finally, the O-ring 17 for sealing and the lid member 13 are fitted in the opening 12 a of the outer cylindrical body 12.
【００２１】本実施例では、前記蓋部材１３がその内側
に突起物１３ｂを有して構成されている。従って、蓋部
材１３を外筒体１２の開口部１２ａにはめ合わせると、
該突起物１３ｂが固定板１６の表面に当接し、外筒体１
２内に形成されている架台部１２ｄに対して固定板１６
の周縁部を押さえつけて固定することができる。そのた
め、本実施例によれば、固定板１６を固定するために、
高さ調整板（スペーサ）を固定板間等に配設する必要が
ある場合において、少なくとも蓋部材と固定板との間に
配設すべき、スペーサを不要とすることができる。ま
た、本実施例のように、可動板１５を２枚を配設し、そ
の間に固定板１６を一枚だけ配設した場合には、蓋部材
１３に設けた突起物１３ｂのみで、固定板１６を押さえ
つけることができ、他にスペーサを配設する必要がな
い。In this embodiment, the lid member 13 has a protrusion 13b inside. Therefore, when the lid member 13 is fitted into the opening 12a of the outer cylindrical body 12,
The protrusion 13b comes into contact with the surface of the fixed plate 16, and the outer cylinder 1
The fixing plate 16 with respect to the pedestal portion 12d formed in 2
The peripheral edge of the can be pressed and fixed. Therefore, according to the present embodiment, in order to fix the fixing plate 16,
When it is necessary to dispose the height adjusting plate (spacer) between the fixing plates or the like, it is possible to eliminate the spacer, which should be arranged at least between the lid member and the fixing plate. When two movable plates 15 are arranged and only one fixed plate 16 is arranged between them as in the present embodiment, only the protrusions 13b provided on the lid member 13 are used to fix the fixed plate. 16 can be pressed down, and it is not necessary to dispose another spacer.
【００２２】ここで、シリコンオイル等の高粘度の液体
から構成される粘性液体（図示せず）は、可動板１５、
回転軸１４及び固定板１６を外筒体１２に装着した段階
において、開口部１２ａより注入することにより可動板
１５と固定板１６との対向面間に充填することができ
る。この場合、上記した実施例と同様、外筒体１２の底
壁部１２ｂに注入孔をあけ、該注入孔から注入する構成
としてもよい。Here, the viscous liquid (not shown) composed of a highly viscous liquid such as silicon oil is used for the movable plate 15,
When the rotary shaft 14 and the fixed plate 16 are mounted on the outer cylinder 12, the gap can be filled between the facing surfaces of the movable plate 15 and the fixed plate 16 by injecting from the opening 12a. In this case, as in the above-described embodiment, an injection hole may be formed in the bottom wall portion 12b of the outer cylindrical body 12 and injection may be performed through the injection hole.
【００２３】上記各実施例の多段式ロータリダンパ１、
１１は、洋式便器の便蓋や便座、あるいはピアノの蓋等
の回転蓋の軸に回転軸４、１４を連結し、適宜の不動部
に外筒体２、１２を固定することにより配設される。そ
して、回転蓋が閉成動作する場合には、回転軸４、１４
と共に可動板５、１５が回転し、これにより粘性液体が
所定の粘性抵抗を発揮し、回転蓋の閉成速度が緩慢とな
る。The multistage rotary damper 1 of each of the above embodiments,
Reference numeral 11 is provided by connecting the rotary shafts 4 and 14 to the shaft of a rotary lid such as a toilet lid or toilet seat of a Western-style toilet, or a lid of a piano, and fixing the outer cylindrical bodies 2 and 12 to appropriate immovable portions. It When the rotary lid is closed, the rotary shafts 4, 14
At the same time, the movable plates 5 and 15 rotate, whereby the viscous liquid exerts a predetermined viscous resistance, and the closing speed of the rotary lid becomes slow.
【００２４】なお、本発明の多段式ロータリダンパは、
上記した実施例になんら限定されるものではない。例え
ば、第１の実施例においては、固定板６、６間にスペー
サを配設していない態様のものを示しているが、各固定
板６、６間に一部切り欠きの環状スペーサを配設しても
よい。また、蓋部材３として第２の実施例で示した内側
に突起物を有するものを用いることもできる。The multistage rotary damper of the present invention is
The present invention is not limited to the above embodiment. For example, in the first embodiment, a mode in which the spacers are not provided between the fixing plates 6 and 6 is shown, but a partially cut-out annular spacer is provided between the fixing plates 6 and 6. You may set it up. Further, as the lid member 3, it is also possible to use one having a protrusion on the inside as shown in the second embodiment.
【００２５】[0025]
【発明の効果】本発明の多段式ロータリダンパ及びその
製造方法によれば、回転軸と可動板とが一体的に形成さ
れているものを用いると共に、固定板として所定の部位
に切欠き部が形成されているものを用いているため、部
品点数も従来のものと比べて少なくなり、製造、組立て
も容易である。According to the multistage rotary damper and the method of manufacturing the same of the present invention, the rotary shaft and the movable plate are integrally formed, and the fixed plate has a notch at a predetermined portion. Since the formed product is used, the number of parts is smaller than that of the conventional product, and it is easy to manufacture and assemble.
【図１】本発明の多段式ロータリダンパの一実施例を示
す断面図である。FIG. 1 is a sectional view showing an embodiment of a multistage rotary damper of the present invention.
【図２】同実施例で用いた固定板を示す平面図である。FIG. 2 is a plan view showing a fixing plate used in the example.
【図３】本発明の多段式ロータリダンパの他の実施例を
示す断面図である。FIG. 3 is a cross-sectional view showing another embodiment of the multistage rotary damper of the present invention.
１ 多段式ロータリダンパ ２ 外筒体 ４ 回転軸 ５ 可動板 ６ 固定板 １１ 多段式ロータリダンパ １２ 外筒体 １４ 回転軸 １５ 可動板 １６ 固定板 1 Multi-Stage Rotary Damper 2 Outer Cylinder 4 Rotating Shaft 5 Movable Plate 6 Fixed Plate 11 Multi-Stage Rotary Damper 12 Outer Cylinder 14 Rotating Shaft 15 Movable Plate 16 Fixed Plate
Claims (4)
外筒体から少なくとも一端が突出するように配設された
回転軸と、外筒体内において該回転軸とともに回転軸周
囲に固定されて回転可能に配設された複数枚の可動板
と、回転軸の直径以上の径で形成された回転軸挿通用の
挿通孔を有するとともに、該回転軸の周囲に可動板と交
互に配設される固定板と、該可動板と固定板との対向面
間に介在された粘性液体と、前記外筒体の開口部にはめ
付けられる蓋部材と、を有して構成される多段式ロータ
リダンパにおいて、前記回転軸と可動板とが一体的に形
成され、かつ前記固定板が外周部から内周部にわたり前
記回転軸の径以上の幅で切り欠かられた切欠き部を有
し、該回転軸の側方から該切り欠き部に回転軸を通過さ
せて可動板間に装填されていることを特徴とする多段式
ロータリダンパ。1. An outer cylinder body having at least one open end, a rotary shaft arranged so that at least one end projects from the outer cylinder body, and a rotary shaft fixed in the outer cylinder body around the rotary shaft together with the rotary shaft. It has a plurality of movable plates rotatably arranged and an insertion hole for inserting a rotary shaft formed with a diameter larger than the diameter of the rotary shaft, and is arranged alternately with the movable plates around the rotary shaft. Multi-stage rotary damper configured to have a fixed plate, a viscous liquid interposed between the facing surfaces of the movable plate and the fixed plate, and a lid member fitted to the opening of the outer cylindrical body. In the above, the rotating shaft and the movable plate are integrally formed, and the fixed plate has a notch portion cut out with a width equal to or larger than the diameter of the rotating shaft from the outer peripheral portion to the inner peripheral portion. The rotary shaft is passed from the side of the shaft to the cutout portion and is loaded between the movable plates. A multi-stage rotary damper characterized in that
該固定板を固定可能な突起物を内側に有している請求項
１記載の多段式ロータリダンパ。2. The multi-stage rotary damper according to claim 1, wherein the lid member has a protrusion inside which abuts the surface of the fixed plate to fix the fixed plate.
と、該外筒体から少なくとも一端が突出するように配設
された回転軸と、外筒体内において該回転軸とともに回
転軸周囲に固定されて回転可能に配設された複数枚の可
動板と、該回転軸挿通用の挿通孔を有するとともに該回
転軸の周囲に可動板と交互に配設される固定板と、該可
動板と固定板との対向面間に介在された粘性液体と、前
記外筒体の開口部にはめ付けられる蓋部材と、を有して
構成される多段式ロータリダンパの製造方法において、
複数枚の可動板を回転軸と一体的に形成する工程と、回
転軸の径以上に形成された回転軸の挿通孔と、板部分の
一部であって外周部から内周部にわたり該回転軸の径以
上の幅で切り欠かれた切欠き部とが形成されている固定
板を、該回転軸の側方から該切欠き部に該回転軸を通過
させて各可動板間に交互に配設する工程と、外筒体を回
転軸方向から該固定板、可動板及び回転軸の周囲に装着
する工程と、該可動板と固定板との対向面間に介在する
ように粘性液体を注入する工程と、外筒体の開口部に蓋
部材をはめ付ける工程と、を有することを特徴とする多
段式ロータリダンパの製造方法。3. An outer cylindrical body having at least one end opened, a rotary shaft arranged so as to project at least one end from the outer cylindrical body, and fixed around the rotary shaft together with the rotary shaft in the outer cylindrical body. And a plurality of movable plates rotatably arranged, a fixed plate having an insertion hole for inserting the rotation shaft and alternately arranged with the movable plate around the rotation shaft, and the movable plate. In a method for manufacturing a multi-stage rotary damper, which comprises a viscous liquid interposed between surfaces facing a fixed plate, and a lid member fitted to the opening of the outer cylindrical body,
The step of integrally forming a plurality of movable plates with the rotary shaft, the through hole of the rotary shaft formed with a diameter equal to or larger than the diameter of the rotary shaft, and the rotation from the outer peripheral portion to the inner peripheral portion which is a part of the plate portion. A fixed plate having a notch cut out with a width equal to or larger than the diameter of the shaft is passed from the side of the rotating shaft to the notch and the rotating shaft is passed to alternate between the movable plates. The step of disposing the outer cylinder body, the step of mounting the outer cylinder around the fixed plate, the movable plate and the rotary shaft in the direction of the rotation axis, and the viscous liquid so as to be interposed between the facing surfaces of the movable plate and the fixed plate. A method of manufacturing a multi-stage rotary damper, comprising: a step of injecting and a step of fitting a lid member into an opening of an outer cylinder.
記工程において、内側に固定板の表面に当接し得る突起
物を有し、装着することにより該突起物で固定板を固定
可能な蓋部材を用いている請求項３に記載の多段式ロー
タリダンパの製造方法。4. In the step of fitting the lid member into the opening of the outer cylindrical body, there is a protrusion inside which the surface of the fixing plate can come into contact, and the fixing plate can be fixed by the protrusion by mounting the protrusion. The method for manufacturing a multi-stage rotary damper according to claim 3, wherein a transparent lid member is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP08507992A JP3148343B2 (en) | 1991-11-06 | 1992-03-09 | Multi-stage rotary damper and manufacturing method thereof |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31735891 | 1991-11-06 | ||
| JP3-317358 | 1991-11-06 | ||
| JP08507992A JP3148343B2 (en) | 1991-11-06 | 1992-03-09 | Multi-stage rotary damper and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05179858A true JPH05179858A (en) | 1993-07-20 |
| JP3148343B2 JP3148343B2 (en) | 2001-03-19 |
Family
ID=26426101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP08507992A Expired - Lifetime JP3148343B2 (en) | 1991-11-06 | 1992-03-09 | Multi-stage rotary damper and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3148343B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007051509A (en) * | 2005-08-19 | 2007-03-01 | Starting Ind Co Ltd | Closer for sliding door |
-
1992
- 1992-03-09 JP JP08507992A patent/JP3148343B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007051509A (en) * | 2005-08-19 | 2007-03-01 | Starting Ind Co Ltd | Closer for sliding door |
| JP4691413B2 (en) * | 2005-08-19 | 2011-06-01 | スターテング工業株式会社 | Closer for sliding door |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3148343B2 (en) | 2001-03-19 |
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