JP5029248B2 - Rotary friction damper - Google Patents

Rotary friction damper Download PDF

Info

Publication number
JP5029248B2
JP5029248B2 JP2007246263A JP2007246263A JP5029248B2 JP 5029248 B2 JP5029248 B2 JP 5029248B2 JP 2007246263 A JP2007246263 A JP 2007246263A JP 2007246263 A JP2007246263 A JP 2007246263A JP 5029248 B2 JP5029248 B2 JP 5029248B2
Authority
JP
Japan
Prior art keywords
peripheral surface
recess
cylinder
protrusion
divided
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.)
Active
Application number
JP2007246263A
Other languages
Japanese (ja)
Other versions
JP2009074661A (en
Inventor
明彦 沖村
美照 五十嵐
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.)
Oiles Corp
Original Assignee
Oiles Corp
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 Oiles Corp filed Critical Oiles Corp
Priority to JP2007246263A priority Critical patent/JP5029248B2/en
Publication of JP2009074661A publication Critical patent/JP2009074661A/en
Application granted granted Critical
Publication of JP5029248B2 publication Critical patent/JP5029248B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Vibration Dampers (AREA)

Description

本発明は、ステアリング軸、ドアーチェック、トランク若しくはボンネットのヒンジ等の回転軸の回転に対して摩擦による減衰を与える回転式摩擦ダンパに関する。   The present invention relates to a rotary friction damper that provides damping due to friction with respect to rotation of a rotating shaft such as a steering shaft, door check, trunk or bonnet hinge.

特開２００１−３３６５２３号公報JP 2001-336523 A 特開平９−４２２７１号公報JP-A-9-42271 特開平７−２６８２５号公報JP-A-7-26825

回転式ダンパとしては、粘性ダンパといわれる流体を用いたもの、摩擦を用いたものが知られている。   As rotary dampers, those using a fluid called a viscous damper and those using friction are known.

流体を用いた回転式ダンパは、大きな減衰を確保できる一方、流体の漏出というシール性の問題及び温度の相違により減衰が大きく異なるという温度依存性の問題がある。   While a rotary damper using a fluid can ensure a large attenuation, it has a problem of sealing performance such as fluid leakage and a temperature dependency problem that the attenuation varies greatly depending on the temperature difference.

摩擦を用いた回転式ダンパは、シール性を考慮する必要がない上に、減衰に関して温度変化の影響を受け難いが、特許文献１に記載の回転式摩擦ダンパでは、比較的大きな摩擦面を必要とする結果、小型化を図ることが困難であり、特許文献２及び３に記載の回転式摩擦ダンパでは、安定な摩擦力を得ることが困難である。   The rotary damper using friction does not need to consider the sealing performance and is not easily affected by temperature change with respect to damping. However, the rotary friction damper described in Patent Document 1 requires a relatively large friction surface. As a result, it is difficult to reduce the size, and it is difficult to obtain a stable friction force in the rotary friction dampers described in Patent Documents 2 and 3.

本発明は、前記諸点に鑑みてなされたものであって、その目的とするところは、安定で比較的大きな摩擦力を得ることができ、而して、小型化を図ることができる回転式摩擦ダンパを提供することにある。   The present invention has been made in view of the above-mentioned points, and the object of the present invention is to obtain a stable and relatively large frictional force, and thus a rotary friction that can be reduced in size. To provide a damper.

本発明の回転式摩擦ダンパは、径方向に突出した突起及びこの突起を受容すると共に径方向に凹んだ凹所のうちの一方を有すると共に回転軸に固定される合成樹脂製の内筒と、径方向に突出した突起及びこの突起を受容すると共に径方向に凹んだ凹所のうちの他方を有すると共に内筒を回転自在に支持する一方、ハウジングに固定される合成樹脂製の外筒とを具備しており、突起は、その外面で凹所を規定する凹所面に接触している。   The rotary friction damper of the present invention includes a synthetic resin inner cylinder that has one of a radially protruding protrusion and a radially recessed recess that receives the protrusion and is fixed to the rotating shaft. A radially projecting protrusion and the other of the radially recessed recesses for receiving the protrusion and rotatably supporting the inner cylinder, and a synthetic resin outer cylinder fixed to the housing. And the protrusion is in contact with the recess surface defining the recess at its outer surface.

本発明の回転式摩擦ダンパによれば、径方向に突出した突起とこの突起を受容する凹所とを具備し、突起の外面は、凹所を規定する凹所面に接触しているために、安定で比較的大きな摩擦力を得ることができ、而して、小型化を図ることができる。   According to the rotary friction damper of the present invention, it has a protrusion protruding in the radial direction and a recess that receives the protrusion, and the outer surface of the protrusion is in contact with the recess surface that defines the recess. Thus, a stable and relatively large frictional force can be obtained, and thus the size can be reduced.

内筒及び外筒の形成材料としての合成樹脂は、耐摩耗性に優れ、安定した摩擦力が得られる材料が好ましく、具体的には、ポリアセタール樹脂、ポリアミド樹脂、ポリブチレンテレフタレート樹脂、液晶ポリエステル樹脂、変性ポリフェニレンエーテル樹脂、ポリフェニレンサルファイド樹脂、ポリエーテルスルホン樹脂、ポリエーテルケトン樹脂のうちの少なくとも一つを含む合成樹脂等を挙げることができる。これら合成樹脂には各種充填材を配合してもよい。そして、内筒及び外筒を形成する合成樹脂の組合せ、配合する充填材を変えることにより、得られる摩擦特性を調整できる。   The synthetic resin as a material for forming the inner cylinder and the outer cylinder is preferably a material having excellent wear resistance and a stable frictional force. Specifically, polyacetal resin, polyamide resin, polybutylene terephthalate resin, liquid crystal polyester resin And a synthetic resin containing at least one of a modified polyphenylene ether resin, a polyphenylene sulfide resin, a polyether sulfone resin, and a polyether ketone resin. These synthetic resins may be blended with various fillers. And the friction characteristic obtained can be adjusted by changing the combination of the synthetic resin which forms an inner cylinder and an outer cylinder, and the filler to mix | blend.

本発明では、内筒は、径方向外方向に突出した突起を具備し、外筒は、この突起を受容すると共に径方向外方向に凹んだ凹所を具備していてもよく、これに代えて又はこれと共に、外筒は、径方向内方向に突出した突起を具備し、内筒は、この突起を受容すると共に径方向内方向に凹んだ凹所を具備していてもよい。   In the present invention, the inner cylinder may include a protrusion protruding in the radially outward direction, and the outer cylinder may include a recess that receives the protrusion and is recessed in the radially outward direction. Alternatively, the outer cylinder may include a protrusion protruding in the radially inward direction, and the inner cylinder may include a recess that receives the protrusion and is recessed in the radially inward direction.

好ましい例では、突起は、台形状（楔状）の断面を有した少なくとも一つの円環状の突部を有しており、凹所は、突部に相補的な形状を有している円環状の凹部を有している。このような突部は、一つでもよいが、軸方向に沿って配列された複数個であってもよく、複数個の突部から突起がなっている場合には、凹部もまた、各突部を受容するために、軸方向に沿って配列された複数個であるとよい。   In a preferred example, the protrusion has at least one annular protrusion having a trapezoidal (wedge-shaped) cross section, and the recess has an annular shape having a shape complementary to the protrusion. Has a recess. There may be one such protrusion, but there may be a plurality of protrusions arranged along the axial direction. In order to receive a part, it is good to be a plurality arranged along the axial direction.

一つの例では、外筒は、軸方向において二つに分割されており、二つに分割されて軸方向の一方の分割体と軸方向の他方の分割体とからなる外筒において、当該一方の分割体と他方の分割体とは、その分割面で互いに対面されて連結手段により互いに連結されており、この例の場合、好ましくは、各分割体は、その分割面側に鍔部を有しており、連結手段は、両鍔部を弾性的に抱持する拡径自在な円環体を具備している。   In one example, the outer cylinder is divided into two parts in the axial direction. In the outer cylinder that is divided into two parts and includes one divided body in the axial direction and the other divided body in the axial direction, The divided body and the other divided body face each other at their divided surfaces and are connected to each other by a connecting means. In this example, each divided body preferably has a flange on the divided surface side. In addition, the connecting means includes a ring body having a freely expandable diameter that elastically holds both flange portions.

他の一つの例では、外筒は、周方向において少なくとも二つに分割されており、少なくとも二つに分割されて一方の分割体と他方の分割体とからなる外筒において、当該一方の分割体と他方の分割体とは、その分割面で互いに対面されて連結手段により互いに連結されており、この例の場合、好ましくは、各分割体は、外周面に周方向に伸びた少なくとも一つの溝を有した半円筒部を具備しており、連結手段は、半円筒部の夫々の溝を通って周方向に伸びた弾性環状体を具備している。   In another example, the outer cylinder is divided into at least two parts in the circumferential direction, and the outer cylinder is divided into at least two parts and includes one divided body and the other divided body. The body and the other divided body face each other at their divided surfaces and are connected to each other by connecting means. In this example, preferably, each divided body has at least one circumferentially extending on the outer peripheral surface. A semi-cylindrical portion having a groove is provided, and the connecting means includes an elastic annular body extending in the circumferential direction through each groove of the semi-cylindrical portion.

分割体を介して内筒を締め付ける弾性環状体は、好ましくは、天然ゴム製又は合成ゴム製のいわゆるＯリングであってもよく、その他の弾性を有する熱可塑性合成樹脂、例えばポリエステルエラストマーであってもよい。   The elastic annular body that clamps the inner cylinder through the divided body may preferably be a so-called O-ring made of natural rubber or synthetic rubber, or other thermoplastic synthetic resin having elasticity, such as a polyester elastomer. Also good.

他の好ましい例では、突起は、螺旋状突部を有しており、凹所は、螺旋状突部を受容する螺旋状凹部を有しており、外筒の内周面は、その外周面に対して軸方向に移動自在となっている。   In another preferred example, the protrusion has a spiral protrusion, the recess has a spiral recess that receives the spiral protrusion, and the inner peripheral surface of the outer cylinder is the outer peripheral surface thereof. In contrast, it is movable in the axial direction.

斯かる螺旋状突部を有した突起と螺旋状突部を受容する螺旋状凹部を有した凹所とを具備している場合には、螺旋状突部の外面と螺旋状凹部を規定する凹所面との摩擦により大きな摩擦力を得ることができ、而して、より小型化を図ることができて好ましい。   When the projection having the spiral projection and the recess having the spiral recess for receiving the spiral projection are provided, the outer surface of the spiral projection and the recess defining the spiral recess are provided. It is preferable that a large frictional force can be obtained by friction with the surface, and that further downsizing can be achieved.

螺旋状突部の好ましい例は、雄ねじであって、螺旋状凹部の好ましい例は、雄ねじに螺合する雌ねじである。   A preferable example of the spiral protrusion is an external thread, and a preferable example of the spiral recess is an internal thread that is screwed into the external thread.

内周面が外周面に対して軸方向に移動自在となっている外筒の好ましい一つの例は、内周面で内筒を回転自在に支持する内径側の合成樹脂製の筒体と、この筒体の外周面に少なくとも軸方向に滑り移動自在に接触する内周面を有すると共にハウジングに固定される外周面を有した外径側の合成樹脂製の筒体とを具備している。   One preferred example of the outer cylinder whose inner peripheral surface is movable in the axial direction with respect to the outer peripheral surface is a cylindrical body made of synthetic resin on the inner diameter side that rotatably supports the inner cylinder on the inner peripheral surface; A cylindrical body made of synthetic resin on the outer diameter side having an inner peripheral surface that is slidably contacted at least in the axial direction on the outer peripheral surface of the cylindrical body and has an outer peripheral surface fixed to the housing.

斯かる外周面と内周面とで軸方向に滑り接触する内径側及び外径側の筒体を具備した外筒によれば、滑り接触する部位での摩擦力を利用できるために、更により大きな摩擦力を得ることができ、而して、更により小型化を図ることができて好ましい。   According to the outer cylinder provided with the cylindrical body on the inner diameter side and the outer diameter side that are in sliding contact with each other in the axial direction between the outer peripheral surface and the inner peripheral surface, since the frictional force at the sliding contact portion can be used, A large frictional force can be obtained, and thus further downsizing can be achieved.

好ましい例では、内径側の筒体は、一方の端面から軸方向に伸びた少なくとも一つのスリットを有しており、この場合、内径側の筒体は、外周面に周方向に伸びた少なくとも一つの環状溝を有しており、当該環状溝に装着されている弾性環状体により弾性的に縮径されるようになっているとよい。   In a preferred example, the cylinder on the inner diameter side has at least one slit extending in the axial direction from one end surface, and in this case, the cylinder on the inner diameter side is at least one extending in the circumferential direction on the outer peripheral surface. It is good to have one annular groove and to be elastically reduced in diameter by the elastic annular body with which the said annular groove was mounted | worn.

弾性環状体により弾性的に縮径されるようになっている内径側の筒体を具備していると、内径側の筒体の締め代をもって内筒を締め付けることができ、滑り接触する部位での摩擦力を大きくでき、したがって、更により大きな摩擦力を得ることができて、更により小型化を図ることができる。   The inner cylinder can be tightened with the tightening margin of the inner diameter side cylinder when the inner diameter side cylinder is elastically reduced in diameter by the elastic annular body. Therefore, it is possible to obtain a larger frictional force and to further reduce the size.

内径側の筒体を介して内筒を回転軸を締め付ける弾性環状体は、分割体を介して内筒を締め付ける弾性環状体と同様に、好ましくは、天然ゴム製又は合成ゴム製のいわゆるＯリングであってもよく、その他の弾性を有する熱可塑性合成樹脂、例えばポリエステルエラストマーであってもよい。   The elastic annular body for tightening the rotation axis of the inner cylinder via the inner diameter side cylindrical body is preferably a so-called O-ring made of natural rubber or synthetic rubber, like the elastic annular body for tightening the inner cylinder via the divided body. It may be a thermoplastic synthetic resin having other elasticity, for example, a polyester elastomer.

斯かる弾性環状体は、外径側の筒体の内周面に軸方向に滑り移動自在に弾性接触するように、又は、これに代えて、外径側の筒体の内周面に非接触となるように、内径側の筒体の環状溝に装着されていてもよい。   Such an elastic annular body is not elastically contacted with the inner peripheral surface of the outer diameter side cylindrical body, or alternatively, is in contact with the inner peripheral surface of the outer diameter side cylindrical body. It may be mounted in the annular groove of the cylindrical body on the inner diameter side so as to be in contact.

弾性環状体を外径側の筒体の内周面に弾性接触させると、弾性環状体と外径側の筒体との摩擦力を利用でき、これにより、更により大きな摩擦力を得ることができて、而して、更により小型化を図ることができる。   When the elastic annular body is brought into elastic contact with the inner peripheral surface of the outer diameter side cylindrical body, the frictional force between the elastic annular body and the outer diameter side cylindrical body can be utilized, thereby obtaining a larger frictional force. Thus, further downsizing can be achieved.

本発明によれば、安定で比較的大きな摩擦力を得ることができ、而して、小型化を図ることができる回転式摩擦ダンパを提供することができる。   According to the present invention, it is possible to provide a rotary friction damper that can obtain a stable and relatively large frictional force and can be downsized.

次に本発明を、図に示す好ましい実施の形態の例を参照して更に詳細に説明する。なお、本発明はこれらの例に何等限定されないのである。   The invention will now be described in more detail with reference to the preferred embodiment examples shown in the drawings. The present invention is not limited to these examples.

図１から図４において、本例の回転式摩擦ダンパ１は、円筒状の内周面２で回転軸３の円筒状の外周面４に軸心Ｏの周りの方向、即ち回転方向であって周方向であるＲ方向に回転しないように固定される内筒本体５及び内筒本体５の円筒状の外周面６から径方向外方向に突出した円環状の突起７を一体的に有した合成樹脂製の内筒８と、内筒８の突起７を受容すると共に径方向外方向に凹んだ凹所９を有しており、当該凹所９を規定すると共に突起７の外面１０に接触する凹所面１１を内周面１２に有した合成樹脂製の外筒１３とを具備しており、外筒１３は、内周面１２で内筒８をＲ方向に回転自在に支持する一方、その円筒状の外周面１４でハウジング１５の内周面１６にＲ方向に回転しないように嵌合、固定されるようになっている。   1 to 4, the rotary friction damper 1 of this example has a cylindrical inner peripheral surface 2 on a cylindrical outer peripheral surface 4 of a rotary shaft 3 in a direction around an axis O, that is, a rotational direction. The inner cylinder body 5 fixed so as not to rotate in the R direction, which is the circumferential direction, and a synthetically integrated ring-shaped protrusion 7 protruding radially outward from the cylindrical outer peripheral surface 6 of the inner cylinder body 5 It has a resin-made inner cylinder 8 and a recess 9 that receives the protrusion 7 of the inner cylinder 8 and is recessed in the radially outward direction, defines the recess 9 and contacts the outer surface 10 of the protrusion 7. And an outer cylinder 13 made of synthetic resin having a recess surface 11 on the inner peripheral surface 12, and the outer cylinder 13 supports the inner cylinder 8 rotatably on the inner peripheral surface 12 in the R direction, The cylindrical outer peripheral surface 14 is fitted and fixed to the inner peripheral surface 16 of the housing 15 so as not to rotate in the R direction.

突起７は、内筒本体５の外周面６に一体的に形成されていると共に台形状の断面を有した円環状の突部２１を有しており、突部２１は、一対の截頭円錐面２２と、軸方向であるＡ方向に一対の截頭円錐面２２に挟まれていると共に軸心Ｏと同心の中心を有する円筒面２３とを具備しており、突起７の外面１０は、これら一対の截頭円錐面２２と円筒面２３とからなっている。   The protrusion 7 is formed integrally with the outer peripheral surface 6 of the inner cylinder main body 5 and has an annular protrusion 21 having a trapezoidal cross section. The protrusion 21 is a pair of truncated cones. The outer surface 10 of the protrusion 7 is provided with a surface 22 and a cylindrical surface 23 sandwiched between a pair of frustoconical surfaces 22 in the A direction which is the axial direction and having a center concentric with the axis O. A pair of frustoconical surfaces 22 and a cylindrical surface 23 are included.

突部２１を受容した凹所９は、突部２１に相補的な形状を有している円環状の凹部２５を有している。   The recess 9 that has received the protrusion 21 has an annular recess 25 having a shape complementary to the protrusion 21.

外筒１３は、Ａ方向において二つに分割されて一方の分割体３１と他方の分割体３２とからなっている。   The outer cylinder 13 is divided into two parts in the A direction, and includes one divided body 31 and the other divided body 32.

分割体３１は、大径円筒状の外周面３５及び円筒状の内周面３６を有した大径の円筒部３７と、小径円筒状の外周面３８、Ａ方向において内周面３６に連接した截頭円錐状の内周面３９及びＡ方向において内周面３９に連接していると共に内周面３６よりも大径の円筒状の内周面４０を有した小径の円筒部４１と、円筒部３７の外周面３５に設けられた円環状の大径の鍔部４２と、円筒部４１の外周面３８に設けられた円環状の小径の鍔部４３と、円筒部３７の外周面３５であって鍔部４２のＡ方向の一方の端面４４に設けられた突起部４５とを一体的に具備しており、円筒部３７の内周面３６は、内筒本体５の外周面６にＲ方向に回転自在に接触しており、分割面となる円筒部４１及び鍔部４３のＡ方向の一方の端面４６には円環状の凹所４７が形成されており、Ａ方向における円筒部３７と鍔部４３との間で円環状の凹所４８が形成されている。   The divided body 31 is connected to a large-diameter cylindrical portion 37 having a large-diameter cylindrical outer peripheral surface 35 and a cylindrical inner peripheral surface 36, a small-diameter cylindrical outer peripheral surface 38, and the inner peripheral surface 36 in the A direction. A small-diameter cylindrical portion 41 having a frustoconical inner peripheral surface 39 and a cylindrical inner peripheral surface 40 connected to the inner peripheral surface 39 in the A direction and having a larger diameter than the inner peripheral surface 36, and a cylinder An annular large-diameter flange 42 provided on the outer peripheral surface 35 of the portion 37, an annular small-diameter flange 43 provided on the outer peripheral surface 38 of the cylindrical portion 41, and an outer peripheral surface 35 of the cylindrical portion 37. And a protrusion 45 provided on one end surface 44 in the A direction of the flange portion 42, and the inner peripheral surface 36 of the cylindrical portion 37 is formed on the outer peripheral surface 6 of the inner cylinder main body 5 with an R The cylindrical portion 41 and the flange portion 43 serving as the dividing surfaces are in contact with each other so as to be freely rotatable in the direction A. 7 are formed an annular recess 48 between the cylindrical portion 37 and the flange 43 in the A direction is formed.

突起部４５は、ハウジング１５の端面４９に開口して当該ハウジング１５の内周面１６に形成された切欠き５０に嵌合されており、突起部４５の切欠き５０への嵌合により、分割体３１、延いては外筒１３は、ハウジング１５に対してＲ方向に回転しないようになっている。   The projecting portion 45 opens into the end surface 49 of the housing 15 and is fitted into a notch 50 formed in the inner peripheral surface 16 of the housing 15, and is divided by fitting the projecting portion 45 into the notch 50. The body 31, and thus the outer cylinder 13, does not rotate in the R direction with respect to the housing 15.

鍔部４２、突起部４５及び凹所４７並びに凹所４７に嵌合される円環状の突起部５５を除いて分割体３１と同様に形成されている分割体３２は、大径円筒状の外周面５６及び円筒状の内周面５７を有した大径の円筒部５８と、小径円筒状の外周面５９、Ａ方向において内周面５７に連接した截頭円錐状の内周面６０及びＡ方向において内周面６０に連接していると共に内周面５７よりも大径の円筒状の内周面６１を有した小径円筒部６２と、小径円筒部６２の外周面５９に設けられた円環状の鍔部６３と、分割面となる小径円筒部６２及び鍔部６３のＡ方向の一方の端面６４に設けられていると共に凹所４７に嵌合された円環状の突起部５５とを一体的に具備しており、円筒部５８の内周面５７は、内筒本体５の外周面６にＲ方向に回転自在に接触しており、端面６４は端面４６に接触しており、Ａ方向における円筒部５８と小径鍔部６３との間で円環状の凹所６５が形成されている。   The divided body 32 formed in the same manner as the divided body 31 except for the flange 42, the protrusion 45, the recess 47, and the annular protrusion 55 fitted in the recess 47 has a large-diameter cylindrical outer periphery. A large-diameter cylindrical portion 58 having a surface 56 and a cylindrical inner peripheral surface 57, a small-diameter cylindrical outer peripheral surface 59, and a frustoconical inner peripheral surface 60 and A connected to the inner peripheral surface 57 in the A direction. A small diameter cylindrical portion 62 having a cylindrical inner peripheral surface 61 connected to the inner peripheral surface 60 in the direction and having a larger diameter than the inner peripheral surface 57, and a circle provided on the outer peripheral surface 59 of the small diameter cylindrical portion 62. An annular flange 63 is integrated with a small-diameter cylindrical portion 62 serving as a split surface and an annular projection 55 provided on one end surface 64 in the A direction of the flange 63 and fitted in the recess 47. The inner peripheral surface 57 of the cylindrical portion 58 is freely rotatable in the R direction on the outer peripheral surface 6 of the inner cylinder main body 5. Contact and the end face 64 is in contact with the end face 46, the recess 65 of the annular between the cylindrical portion 58 and the small diameter flange portion 63 in the A direction is formed.

突部２１の外面形状に相補的な形状を有している凹部２５からなる凹所９を規定する凹所面１１は、内周面３９、内周面４０、内周面６０及び内周面６１からなっており、回転式摩擦ダンパ１は、円筒部３７の外周面３５及び円筒部５８の外周面５６からなる外筒１３の外周面１４でハウジング１５の内周面１６にＲ方向に回転しないように嵌合、固定されるようになっている。   The recess surface 11 that defines the recess 9 composed of the recess 25 having a shape complementary to the outer surface shape of the protrusion 21 includes an inner peripheral surface 39, an inner peripheral surface 40, an inner peripheral surface 60, and an inner peripheral surface. The rotary friction damper 1 is rotated in the R direction on the inner peripheral surface 16 of the housing 15 by the outer peripheral surface 14 of the outer cylinder 13 composed of the outer peripheral surface 35 of the cylindrical portion 37 and the outer peripheral surface 56 of the cylindrical portion 58. It is designed to be fitted and fixed so that it does not.

分割面側である端面４６及び６４側に鍔部４３及び６３を夫々有する分割体３１と分割体３２とをその分割面であって互いに対面した端面４６及び６４で互いに接触させて連結する連結手段７１は、両鍔部４３及び６３を弾性的に抱持する拡径自在な円環体７２を具備している。   Connecting means for connecting the divided body 31 and the divided body 32 having the flanges 43 and 63 on the side of the end faces 46 and 64, which are the divided surface side, by bringing them into contact with each other at the end faces 46 and 64 facing each other. Reference numeral 71 includes a ring body 72 that can be expanded in diameter and elastically holds both flange portions 43 and 63.

突合せ端面７３及び７４を有する円環体７２は、両鍔部４３及び６３の外周面を囲繞している板状円環部７５と、板状円環部７５の両縁に設けられていると共に凹所４８及び６５に配されて両鍔部４３及び６３を弾性的に挟持している一対の板状脚部７６とを一体的に具備している。   The annular body 72 having the butt end faces 73 and 74 is provided on both edges of the plate-like annular part 75 and the plate-like annular part 75 surrounding the outer peripheral surfaces of both flange parts 43 and 63. A pair of plate-like leg portions 76 that are disposed in the recesses 48 and 65 and elastically sandwich the flange portions 43 and 63 are integrally provided.

以上の回転式摩擦ダンパ１では、回転軸３のＲ方向の回転で内筒８もＲ方向に回転され、内筒８のＲ方向の回転で、ハウジング１５に固定された外筒１３の凹所面１１を有する内周面１２と内筒８の内筒本体５の外周面６並びに突起７の一対の截頭円錐面２２及び円筒面２３からなる外面１０との間に滑り摩擦が生じて、この滑り摩擦でもって回転軸３のＲ方向の回転に減衰を生じさせる。そして、回転式摩擦ダンパ１では、径方向に突出した突部２１の外面１０と突部２１の外面１０に接触する凹所面１１とを具備しているために、滑り摩擦面を大きくできて回転軸３のＲ方向の回転に減衰を生じさせる比較的大きな摩擦力を安定に得ることができ、而して、小型化を図ることができる。   In the rotary friction damper 1 described above, the inner cylinder 8 is also rotated in the R direction by the rotation of the rotating shaft 3 in the R direction, and the recess of the outer cylinder 13 fixed to the housing 15 by the rotation of the inner cylinder 8 in the R direction. Sliding friction occurs between the inner peripheral surface 12 having the surface 11 and the outer peripheral surface 6 of the inner cylinder main body 5 of the inner cylinder 8 and the outer surface 10 composed of the pair of frustoconical surfaces 22 and the cylindrical surface 23 of the projections 7. This sliding friction causes attenuation in the rotation of the rotating shaft 3 in the R direction. Since the rotary friction damper 1 includes the outer surface 10 of the protruding portion 21 protruding in the radial direction and the recessed surface 11 that contacts the outer surface 10 of the protruding portion 21, the sliding friction surface can be increased. A relatively large frictional force that causes attenuation in rotation in the R direction of the rotating shaft 3 can be stably obtained, and thus downsizing can be achieved.

上記の回転式摩擦ダンパ１では、Ａ方向において二つに分割された外筒１３を用いたが、これに代えて、図５から図８に示すような、Ｒ方向において二つに分割された外筒８１を用いてもよく、斯かる合成樹脂製の二つの分割体８２及び８３からなる外筒８１において、これら分割体８２及び８３は、隙間８４及び８５を形成する二組の分割面８６及び８７で互いに対面されて近接されて連結手段８８により互いに連結されている。   In the rotary friction damper 1 described above, the outer cylinder 13 divided into two in the A direction was used, but instead, the outer cylinder 13 was divided into two in the R direction as shown in FIGS. The outer cylinder 81 may be used, and in the outer cylinder 81 including the two divided bodies 82 and 83 made of synthetic resin, the divided bodies 82 and 83 are two sets of divided surfaces 86 that form gaps 84 and 85. And 87 are faced to each other and close to each other, and are connected to each other by connecting means 88.

図５から図８に示す回転式摩擦ダンパ１も、円筒状の内周面９１で回転軸３の円筒状の外周面４にＲ方向に回転しないように固定される内筒本体９２及び内筒本体９２の円筒状の外周面９３から径方向外方向に突出した円環状の突起７を有した合成樹脂製の内筒９５と、内筒９５の突起７を受容すると共に径方向外方向に凹んだ凹所９６を有しており、凹所９６を規定すると共に突起７の外面９７に接触する凹所面９８を内周面９９に有した合成樹脂製の外筒８１とを具備しており、外筒８１は、内周面９９で内筒９５をＲ方向に回転自在に支持する一方、その外周面１００でハウジング１５の内周面１６にＲ方向に回転しないように嵌合、固定されるようになっている。   The rotary friction damper 1 shown in FIG. 5 to FIG. 8 is also provided with an inner cylinder main body 92 and an inner cylinder fixed to the cylindrical outer peripheral surface 4 of the rotary shaft 3 by the cylindrical inner peripheral surface 91 so as not to rotate in the R direction. A synthetic resin inner cylinder 95 having an annular protrusion 7 projecting radially outward from a cylindrical outer peripheral surface 93 of the main body 92, and receiving the protrusion 7 of the inner cylinder 95 and being recessed radially outward. And a synthetic resin outer cylinder 81 having a concave surface 98 which defines the concave portion 96 and contacts the outer surface 97 of the projection 7 on the inner peripheral surface 99. The outer cylinder 81 is fitted and fixed on the inner peripheral surface 99 so that the inner cylinder 95 is rotatably supported in the R direction, while the outer peripheral surface 100 is not rotated in the R direction on the inner peripheral surface 16 of the housing 15. It has become so.

図５から図８において、突起７は、内筒本体９２の外周面９３に一体的に形成されていると共に台形状の断面を有した円環状の突部１１１を有しており、突部１１１は、突部２１と同様に、一対の截頭円錐面１１２と、Ａ方向に一対の截頭円錐面１１２に挟まれていると共に軸心Ｏと同心の中心を有する円筒面１１３とを具備しており、突部２１よりもより楔状になっている突部１１１からなる突起７の外面９７は、これら一対の截頭円錐面１１２と円筒面１１３とからなっている。   5 to 8, the protrusion 7 is formed integrally with the outer peripheral surface 93 of the inner cylinder main body 92 and has an annular protrusion 111 having a trapezoidal cross section. Like the protrusion 21, it includes a pair of frustoconical surfaces 112 and a cylindrical surface 113 sandwiched between the pair of frustoconical surfaces 112 in the A direction and having a center concentric with the axis O. The outer surface 97 of the protrusion 7 formed of the protrusion 111 that is wedge-shaped more than the protrusion 21 includes the pair of frustoconical surfaces 112 and the cylindrical surface 113.

突部１１１を受容した凹所９６もまた、突部１１１に相補的な形状を有している円環状の凹部１１４を有している。   The recess 96 that receives the protrusion 111 also has an annular recess 114 having a shape complementary to the protrusion 111.

分割体８２は、半円筒状の外周面１１５及び半円筒状の内周面１１６を有した半円筒部１１７と、半円筒部１１７の外周面１１５に設けられた半円環状の鍔部１１８と、半円筒部１１７の外周面１１５であって鍔部１１８のＡ方向の一方の端面１１９に設けられた突起部１２０とを一体的に具備しており、半円筒部１１７は、外周面１１５にＲ方向に伸びていると共にＡ方向に離れて配列された半円環状の二つの溝１２５を有しており、内筒本体９２の外周面９３にＲ方向に回転自在に接触している半円筒部１１７の内周面１１６は、突部１１１からなる内筒９５の突起７を受容する半円環状の凹部１２６を規定すると共に当該突部１１１の一対の截頭円錐面１１２及び円筒面１１３に接触する半円環状の凹所面１２７を有しており、凹所面１２７は、一対の半截頭円錐状の内周面１２８及び内周面１２８に挟まれて内周面１２８に連接していると共に内周面１１６よりも大径の半円筒状の内周面１２９を有している。   The divided body 82 includes a semi-cylindrical portion 117 having a semi-cylindrical outer peripheral surface 115 and a semi-cylindrical inner peripheral surface 116, and a semi-annular flange portion 118 provided on the outer peripheral surface 115 of the semi-cylindrical portion 117. , And an outer peripheral surface 115 of the semi-cylindrical portion 117, and a protrusion 120 provided on one end surface 119 of the flange portion 118 in the A direction, and the semi-cylindrical portion 117 is formed on the outer peripheral surface 115. A semi-cylinder that extends in the R direction and has two semicircular grooves 125 arranged away from each other in the A direction, and is in contact with the outer peripheral surface 93 of the inner cylinder main body 92 so as to be rotatable in the R direction. The inner peripheral surface 116 of the portion 117 defines a semicircular recess 126 that receives the protrusion 7 of the inner cylinder 95 formed of the protrusion 111 and is formed on the pair of frustoconical surfaces 112 and the cylindrical surface 113 of the protrusion 111. It has a semi-annular recess surface 127 in contact with the recess surface Reference numeral 27 denotes a semicircular conical inner peripheral surface 128 and an inner peripheral surface 128 sandwiched between the inner peripheral surface 128 and connected to the inner peripheral surface 128, and a semicylindrical inner peripheral surface 129 having a larger diameter than the inner peripheral surface 116. have.

突起部１２０は、ハウジング１５の端面４９に開口して当該ハウジング１５の内周面１６に形成された切欠き５０に嵌合されており、突起部１２０の切欠き５０への嵌合により、分割体８２は、延いては外筒８１は、ハウジング１５に対してＲ方向に回転しないようになっている。   The protrusion 120 is fitted into a notch 50 that is opened in the end surface 49 of the housing 15 and formed in the inner peripheral surface 16 of the housing 15, and is divided by fitting the protrusion 120 into the notch 50. The body 82 extends so that the outer cylinder 81 does not rotate in the R direction with respect to the housing 15.

分割体８２と同様に形成された分割体８３は、半円筒状の外周面１３５及び半円筒状の内周面１３６を有した半円筒部１３７と、半円筒部１３７の外周面１３５に設けられた半円環状の鍔部１３８と、半円筒部１３７の外周面１３５であって鍔部１３８のＡ方向の一方の端面１３９に設けられた突起部１４０とを一体的に具備しており、半円筒部１３７は、外周面１３５にＲ方向に伸びていると共にＡ方向に離れて配列された半円環状の二つの溝１４５を有しており、内筒本体９２の外周面９３にＲ方向に回転自在に接触している半円筒部１３７の内周面１３６は、突部１１１からなる内筒９５の突起７を受容する半円環状の凹部１４６を規定すると共に当該突部１１１の一対の截頭円錐面１１２及び円筒面１１３に接触する半円環状の凹所面１４７を有しており、凹所面１４７は、一対の半截頭円錐状の内周面１４８及び内周面１４８に挟まれて内周面１４８に連接していると共に内周面１３６よりも大径の半円筒状の内周面１４９を有している。   A divided body 83 formed in the same manner as the divided body 82 is provided on a semi-cylindrical portion 137 having a semi-cylindrical outer peripheral surface 135 and a semi-cylindrical inner peripheral surface 136, and an outer peripheral surface 135 of the semi-cylindrical portion 137. A semicircular collar 138 and a protrusion 140 provided on one end surface 139 of the collar 138 in the A direction on the outer peripheral surface 135 of the semicylindrical part 137, The cylindrical portion 137 has two semicircular grooves 145 extending in the R direction on the outer peripheral surface 135 and arranged away from the A direction, and is formed in the R direction on the outer peripheral surface 93 of the inner cylinder main body 92. The inner circumferential surface 136 of the semi-cylindrical portion 137 that is in contact with the rotation defines a semi-annular recess 146 that receives the projection 7 of the inner cylinder 95 made of the projection 111 and a pair of flanges of the projection 111. A semi-annular recess that contacts the conical surface 112 and the cylindrical surface 113 147, and the recess surface 147 is connected to the inner peripheral surface 148 by being sandwiched between the pair of semi-conical inner peripheral surface 148 and the inner peripheral surface 148, and is larger than the inner peripheral surface 136. It has a semi-cylindrical inner peripheral surface 149 having a diameter.

突起部１４０は、ハウジング１５の端面４９に開口して当該ハウジング１５の内周面１６に形成された他の切欠き１５０に嵌合されており、突起部１４０の切欠き１５０への嵌合により、分割体８３は、延いては外筒１３は、ハウジング１５に対してＲ方向に回転しないようになっている。   The projecting portion 140 opens into the end surface 49 of the housing 15 and is fitted into another notch 150 formed on the inner peripheral surface 16 of the housing 15, and the projecting portion 140 is fitted into the notch 150. The split body 83 extends so that the outer cylinder 13 does not rotate in the R direction with respect to the housing 15.

図５から図８に示す連結手段８８は、半円筒部１１７及び１３７の夫々の溝１２５及び１４５を通ってＲ方向に伸びたＯリングからなる弾性環状体１５５及び１５６を具備しており、弾性環状体１５５及び１５６は、半円筒部１１７及び１３７からなる外筒８１を縮径させるように外筒８１を弾性的に締め付けている一方、ハウジング１５の内周面１６により押圧されて当該内周面１６に弾性的に接触している。   The connection means 88 shown in FIGS. 5 to 8 includes elastic annular bodies 155 and 156 made of O-rings extending in the R direction through the respective grooves 125 and 145 of the semi-cylindrical portions 117 and 137. The annular bodies 155 and 156 elastically tighten the outer cylinder 81 so as to reduce the diameter of the outer cylinder 81 composed of the semi-cylindrical portions 117 and 137, while being pressed by the inner peripheral surface 16 of the housing 15. It is in elastic contact with the surface 16.

而して、分割体８２と分割体８３とを具備した外筒８１において、凹所９６は、凹部１１４からなっており、凹部１１４は、凹部１２６と凹部１４６とからなっており、凹所面９８は、凹所面１２７と凹所面１４７とからなっており、内周面９９は、内周面１１６と内周面１３６とからなっており、外周面１００は、外周面１１５と外周面１３５とからなっている。   Thus, in the outer cylinder 81 provided with the divided body 82 and the divided body 83, the recess 96 includes the recess 114, and the recess 114 includes the recess 126 and the recess 146. 98 includes a recess surface 127 and a recess surface 147, an inner peripheral surface 99 includes an inner peripheral surface 116 and an inner peripheral surface 136, and the outer peripheral surface 100 includes an outer peripheral surface 115 and an outer peripheral surface. It consists of 135.

図５から図８に示す回転式摩擦ダンパ１でも、回転軸３のＲ方向の回転で内筒９５もＲ方向に回転され、内筒９５のＲ方向の回転で、ハウジング１５に固定された外筒８１の凹所面９８を有する内周面９９と内筒９５の外周面９３並びに一対の截頭円錐面１１２及び円筒面１１３からなる外面９７との間に滑り摩擦が生じて、この滑り摩擦でもって回転軸３のＲ方向の回転に減衰を生じさせる。そして、回転式摩擦ダンパ１では、径方向外方向に突出した突起７の外面９７と突起７の外面９７に接触すると共に径方向外方向に凹んだ凹所面９８とを具備しているために、滑り摩擦面を大きくできて回転軸３のＲ方向の回転に減衰を生じさせる比較的大きな摩擦力を安定に得ることができ、而して、小型化を図ることができ、しかも、弾性環状体１５５及び１５６は、半円筒部１１７及び１３７からなる外筒８１を縮径させるように外筒８１を弾性的に締め付けているために、滑り摩擦面を安定して確保できる。   Also in the rotary friction damper 1 shown in FIGS. 5 to 8, the inner cylinder 95 is also rotated in the R direction by the rotation of the rotating shaft 3 in the R direction, and the outer cylinder fixed to the housing 15 is rotated by the rotation of the inner cylinder 95 in the R direction. Sliding friction is generated between the inner peripheral surface 99 having the recessed surface 98 of the cylinder 81, the outer peripheral surface 93 of the inner cylinder 95, and the outer surface 97 including the pair of frustoconical surfaces 112 and the cylindrical surface 113, and this sliding friction. Accordingly, the rotation of the rotating shaft 3 in the R direction is attenuated. The rotary friction damper 1 includes the outer surface 97 of the protrusion 7 projecting radially outward and the concave surface 98 that contacts the outer surface 97 of the protrusion 7 and is recessed radially outward. The sliding friction surface can be enlarged, and a relatively large frictional force that causes the rotation of the rotating shaft 3 to attenuate in the R direction can be obtained stably. Since the bodies 155 and 156 elastically tighten the outer cylinder 81 so as to reduce the diameter of the outer cylinder 81 composed of the semi-cylindrical portions 117 and 137, a sliding friction surface can be secured stably.

上記の回転式摩擦ダンパ１は、一個の円環状の突部２１又は１１１を夫々有した突起７を具備したものであるが、斯かる突起７に代えて、図９から図１７に示すような螺旋状突部１７１を有した突起７を具備していてもよく、この場合、凹所９は、螺旋状突部１７１を受容する螺旋状凹部１７２を有しており、外筒１３の内周面１２は、その外周面１４に対してＡ方向に移動自在となっている。   The rotary friction damper 1 includes the protrusions 7 each having one annular protrusion 21 or 111. Instead of such protrusions 7, as shown in FIGS. A protrusion 7 having a spiral protrusion 171 may be provided. In this case, the recess 9 has a spiral recess 172 that receives the spiral protrusion 171, and the inner periphery of the outer cylinder 13. The surface 12 is movable in the A direction with respect to the outer peripheral surface 14.

即ち、図９から図１７に示す回転式摩擦ダンパ１は、円筒状の内周面２で回転軸３の円筒状の外周面４にＲ方向に回転しないように固定される内筒本体５及び内筒本体５の円筒状の外周面６から径方向外方向に突出した雄ねじからなる螺旋状突部１７１を有した合成樹脂製の内筒８と、内筒８の螺旋状突部１７１を受容して当該螺旋状突部１７１に螺合すると共に径方向外方向に凹んだ雌ねじからなる螺旋状凹部１７２を有しており、当該螺旋状凹部１７２を規定すると共に螺旋状突部１７１の雄ねじ面からなる外面１０に接触する雌ねじ面からなる凹所面１１を内周面１２に有した合成樹脂製の外筒１３とを具備している。   That is, the rotary friction damper 1 shown in FIGS. 9 to 17 includes an inner cylinder main body 5 that is fixed to the cylindrical outer peripheral surface 4 of the rotary shaft 3 by the cylindrical inner peripheral surface 2 so as not to rotate in the R direction. An inner cylinder 8 made of synthetic resin having a spiral protrusion 171 made of a male screw protruding radially outward from the cylindrical outer peripheral surface 6 of the inner cylinder main body 5 and the spiral protrusion 171 of the inner cylinder 8 are received. And has a helical recess 172 made of a female screw that is screwed into the helical protrusion 171 and recessed radially outward, and defines the helical recess 172 and has a male screw surface of the helical protrusion 171. And an outer cylinder 13 made of a synthetic resin having a concave surface 11 made of an internally threaded surface in contact with the outer surface 10 made of the inner peripheral surface 12.

外筒１３は、凹所面１１を有すると共に凹所面１１で螺旋状突部１７１と螺旋状凹部１７２との螺合をもって内筒８をＲ方向に回転自在に支持する内径側の合成樹脂製の筒体１７５と、筒体１７５の外周面１７６にＡ方向に滑り移動自在に接触する円筒状の内周面１７７を有すると共にハウジング１５の内周面１６にＲ方向に回転しないように嵌合、固定される外周面１４を有した外径側の合成樹脂製の筒体１７８とを具備している。   The outer cylinder 13 has a recess surface 11 and is made of a synthetic resin on the inner diameter side that rotatably supports the inner cylinder 8 in the R direction by screwing the spiral protrusion 171 and the spiral recess 172 on the recess surface 11. The cylindrical body 175 has a cylindrical inner peripheral surface 177 that is slidably contacted in the direction A with the outer peripheral surface 176 of the cylindrical body 175 and is fitted to the inner peripheral surface 16 of the housing 15 so as not to rotate in the R direction. And a cylindrical body 178 made of a synthetic resin on the outer diameter side having an outer peripheral surface 14 to be fixed.

筒体１７５は、一方の端面１８１からＡ方向に伸びていると共にＲ方向において１２０°の等しい中心角度間隔で配列された三個のスリット１８２及び他方の端面１８３からＡ方向に伸びていると共にＲ方向において１２０°の等しい中心角度間隔で配列された三個のスリット１８４を有した筒体本体１８５と、スリット１８２及び１８４によりＲ方向において分断された筒体本体１８５の内周面でもある内周面１２に形成された雌ねじ面からなる凹所面１１と、スリット１８２及び１８４によりＲ方向において分断された筒体本体１８５の外周面でもある外周面１７６と面一の外周面１８６を有すると共に端面１８３からＡ方向に突出した係合突起部１８７と、筒体本体１８５の内周面１２に形成されていると共に一端ではスリット１８４に開口し他端では端面１８１で開口した空気抜き溝１８８と、同じく筒体本体１８５の内周面１２に形成されていると共に一端ではスリット１８２に開口し他端では端面１８３で開口した空気抜き溝１８９とを具備している。   The cylindrical body 175 extends in the A direction from one end face 181 and extends in the A direction from the three slits 182 and the other end face 183 arranged at equal central angular intervals of 120 ° in the R direction. The cylinder body 185 having three slits 184 arranged at equal central angle intervals of 120 ° in the direction, and the inner circumference that is also the inner circumferential surface of the cylinder body 185 divided in the R direction by the slits 182 and 184 An end surface having a recess surface 11 formed of a female thread surface formed on the surface 12 and an outer peripheral surface 186 that is also an outer peripheral surface 176 that is also an outer peripheral surface of the cylindrical body 185 divided in the R direction by slits 182 and 184 An engaging projection 187 projecting in the A direction from 183 and an inner peripheral surface 12 of the cylindrical body 185 and at one end to a slit 184 An air vent groove 188 opened at the end surface 181 at the other end, and an air vent groove 189 formed on the inner peripheral surface 12 of the cylindrical body 185 and opened at the slit 182 at one end and opened at the end surface 183 at the other end. It has.

スリット１８２は、端面１８３の手前であって空気抜き溝１８９までＡ方向に伸びており、スリット１８２に対してＲ方向において６０°の中心角度をもって離間されたスリット１８４は、端面１８１の手前であって空気抜き溝１８８までＡ方向に伸びている。   The slit 182 is in front of the end surface 183 and extends in the A direction to the air vent groove 189, and the slit 184 that is separated from the slit 182 with a central angle of 60 ° in the R direction is in front of the end surface 181. The air vent groove 188 extends in the A direction.

筒体１７８は、円筒状の内周面１７７及び外周面１４を有した筒体本体１９１と、筒体本体１９１の外周面１４に設けられた円環状の鍔部４２と、筒体本体１９１の外周面１４であって鍔部４２のＡ方向の一方の端面４４に設けられていると共にハウジング１５の切欠き５０に嵌合されている突起部４５と、Ｒ方向において係合突起部１８７を挟んで筒体本体１９１の内周面１７７に設けられていると共に係合突起部１８７にＡ方向に移動自在に接触する一対の係止突起部１９２とを一体的に具備している。   The cylindrical body 178 includes a cylindrical main body 191 having a cylindrical inner peripheral surface 177 and an outer peripheral surface 14, an annular flange 42 provided on the outer peripheral surface 14 of the cylindrical main body 191, and the cylindrical main body 191. A protrusion 45 provided on one end face 44 in the A direction of the flange 42 on the outer peripheral surface 14 and the engagement protrusion 187 in the R direction is sandwiched between the protrusion 45 and the notch 50 of the housing 15. And a pair of locking projections 192 that are provided on the inner peripheral surface 177 of the cylindrical body 191 and are movably in contact with the engagement projections 187 in the A direction.

筒体１７５は、係合突起部１８７の一対の係止突起部１９２間への嵌合、係合により、筒体１７８に対してＲ方向に回転しないようになっており、筒体１７８は、突起部４５の切欠き５０への嵌合により、ハウジング１５に対してＲ方向に回転しないようになっている。   The cylindrical body 175 is prevented from rotating in the R direction with respect to the cylindrical body 178 by fitting and engaging between the pair of engaging projections 192 of the engaging protrusion 187. By fitting the protrusion 45 into the notch 50, the protrusion 45 is prevented from rotating in the R direction with respect to the housing 15.

図９から図１７に示す回転式摩擦ダンパ１では、回転軸３のＲ方向の回転で内筒８もＲ方向に回転され、内筒８のＲ方向の回転で、内筒８の螺旋状突部１７１と筒体本体１８５の螺旋状凹部１７２との螺合を介して筒体１７５が内筒８及び筒体１７８に対してＡ方向に移動され、この移動において螺旋状突部１７１の雄ねじ面からなる外面１０と螺旋状凹部１７２を規定する雌ねじ面からなる凹所面１１との間、筒体本体１８５の外周面１７６と筒体本体１９１の内周面１７７との間、係合突起部１８７の外周面１８６と筒体本体１９１の内周面１７７との間、係合突起部１８７のＲ方向の両側面と一対の係止突起部１９２のＲ方向の両側面との間に滑り摩擦が生じて、この滑り摩擦でもって回転軸３のＲ方向の回転に減衰を生じさせる。そして、回転式摩擦ダンパ１では、外面１０と凹所面１１との間の滑り面、外周面１７６と内周面１７７との間の滑り面、外周面１８６と内周面１７７との間の滑り面、そして、係合突起部１８７と係止突起部１９２との間の滑り面からなる多くの摩擦滑り面を具備しているために、滑り摩擦面を大きくできて回転軸３のＲ方向の回転に減衰を生じさせる比較的大きな摩擦力を安定に得ることができ、而して、小型化を図ることができる。   In the rotary friction damper 1 shown in FIGS. 9 to 17, the inner cylinder 8 is also rotated in the R direction by the rotation of the rotating shaft 3 in the R direction, and the helical protrusion of the inner cylinder 8 is rotated by the rotation of the inner cylinder 8 in the R direction. The cylindrical body 175 is moved in the A direction with respect to the inner cylinder 8 and the cylindrical body 178 through screwing between the portion 171 and the helical recess 172 of the cylindrical body 185. In this movement, the male thread surface of the helical projection 171 Between the outer surface 10 and the recessed surface 11 formed of the female thread surface defining the spiral recess 172, between the outer peripheral surface 176 of the cylindrical body 185 and the inner peripheral surface 177 of the cylindrical main body 191, Sliding friction between the outer peripheral surface 186 of 187 and the inner peripheral surface 177 of the cylindrical body 191, between both side surfaces in the R direction of the engaging projections 187 and both side surfaces in the R direction of the pair of locking projections 192 Is generated, and this sliding friction attenuates the rotation of the rotating shaft 3 in the R direction. In the rotary friction damper 1, a sliding surface between the outer surface 10 and the recess surface 11, a sliding surface between the outer peripheral surface 176 and the inner peripheral surface 177, and between the outer peripheral surface 186 and the inner peripheral surface 177. Since the sliding surface and many friction sliding surfaces including the sliding surface between the engaging projection 187 and the locking projection 192 are provided, the sliding friction surface can be enlarged so that the R direction of the rotary shaft 3 can be increased. A relatively large frictional force that causes attenuation in the rotation of the motor can be stably obtained, and thus downsizing can be achieved.

図９から図１７に示す回転式摩擦ダンパ１では、スリット１８２及び１８４を有した筒体本体１８５の雌ねじ面からなる凹所面１１を合成樹脂からなる筒体本体１８５の弾性的な締め代をもって内筒８の螺旋状突部１７１に螺合させたが、これに加えて、図１８及び図１９に示すように、Ｏリングからなる弾性環状体２０１の弾性的な締め代をもって筒体本体１８５を内筒８の螺旋状突部１７１に螺合させてもよい。即ち、図１８及び図１９において、筒体１７５において、スリット１８２及び１８４を有した筒体本体１８５は、スリット１８２及び１８４によりＲ方向において分断されて外周面１７６にＲ方向に伸びていると共にＡ方向に離間して配列された二つの環状溝２０２を有しており、当該環状溝２０２に装着されている弾性環状体２０１により弾性的に縮径されるようになっている。   In the rotary friction damper 1 shown in FIGS. 9 to 17, the recess surface 11 formed of the female thread surface of the cylinder body 185 having the slits 182 and 184 is provided with the elastic interference of the cylinder body 185 made of synthetic resin. In addition to this, as shown in FIGS. 18 and 19, the cylinder body 185 has an elastic margin of an elastic ring body 201 made of an O-ring. May be screwed into the spiral protrusion 171 of the inner cylinder 8. That is, in FIG. 18 and FIG. 19, the cylinder body 185 having the slits 182 and 184 in the cylinder 175 is divided in the R direction by the slits 182 and 184 and extends to the outer peripheral surface 176 in the R direction. It has two annular grooves 202 that are arranged apart from each other in the direction, and is elastically reduced in diameter by an elastic annular body 201 attached to the annular groove 202.

図１８及び図１９に示す回転式摩擦ダンパ１では、筒体本体１８５自体の合成樹脂の弾性力に加えて弾性環状体２０１の弾性力により筒体本体１８５の雌ねじ面からなる凹所面１１を内筒８の螺旋状突部１７１に締め代をもって螺合させることができる結果、螺旋状突部１７１の雄ねじ面からなる外面１０と螺旋状凹部１７２を規定する雌ねじ面からなる凹所面１１との間の滑り摩擦面での摩擦抵抗を大きくでき、而して、回転軸３のＲ方向の回転に減衰を生じさせる比較的大きな摩擦力を安定に得ることができ、より小型化を図ることができる。   In the rotary friction damper 1 shown in FIGS. 18 and 19, the concave surface 11 formed by the female thread surface of the cylindrical body 185 is formed by the elastic force of the elastic annular body 201 in addition to the elastic force of the synthetic resin of the cylindrical body 185 itself. As a result of being able to be screwed into the helical protrusion 171 of the inner cylinder 8 with a tightening margin, the outer surface 10 made of a male screw surface of the helical protrusion 171 and the concave surface 11 made of a female screw surface defining the helical recess 172, The frictional resistance on the sliding friction surface between the two can be increased, and thus a relatively large frictional force that causes the rotation of the rotating shaft 3 in the R direction can be stably obtained, and the size can be further reduced. Can do.

斯かる弾性環状体２０１を用いる場合、図１８及び図１９に示すように、弾性環状体２０１は、その外周面２０５が筒体本体１９１の内周面１７７にＡ方向に滑り移動自在に弾性接触するように、環状溝２０２に装着されていても、図２０に示すように、その外周面２０５が筒体本体１９１の内周面１７７に非接触となるように、環状溝２０２に装着されていてもよく、前者の場合は、回転軸３のＲ方向の回転で弾性環状体２０１の外周面２０５と筒体本体１９１の内周面１７７との間の摩擦面での摩擦を用いることができ、回転軸３のＲ方向の回転に減衰を生じさせる比較的大きな摩擦力を安定に得ることができ、更により小型化を図ることができる。   When such an elastic annular body 201 is used, as shown in FIGS. 18 and 19, the elastic annular body 201 has an outer peripheral surface 205 in elastic contact with the inner peripheral surface 177 of the cylindrical body 191 so as to be slidable in the A direction. As shown in FIG. 20, the outer peripheral surface 205 is mounted in the annular groove 202 so that the outer peripheral surface 205 is not in contact with the inner peripheral surface 177 of the cylindrical body 191. In the former case, the friction on the friction surface between the outer peripheral surface 205 of the elastic annular body 201 and the inner peripheral surface 177 of the cylindrical body 191 can be used by the rotation of the rotating shaft 3 in the R direction. A relatively large frictional force that causes attenuation in the rotation of the rotating shaft 3 in the R direction can be stably obtained, and further downsizing can be achieved.

本発明の好ましい実施の形態の一例の図２に示すＩ−Ｉ線矢視断面説明図である。It is II sectional view explanatory drawing shown in FIG. 2 of an example of preferable embodiment of this invention. 図１に示す例の左側面説明図である。It is explanatory drawing on the left side of the example shown in FIG. 図１に示す例の内筒及び外筒の分解説明図である。FIG. 2 is an exploded explanatory view of an inner cylinder and an outer cylinder in the example shown in FIG. 1. 図１に示す例の円環体の説明図であって、（ａ)は正面説明図であり、（ｂ)は（ａ)の右側面説明図である。It is explanatory drawing of the torus of the example shown in FIG. 1, Comprising: (a) is front explanatory drawing, (b) is a right view explanatory drawing of (a). 本発明の好ましい実施の形態の他の例の図６に示すＶ−Ｖ線矢視断面図である。It is the VV arrow directional cross-sectional view shown in FIG. 6 of the other example of preferable embodiment of this invention. 図５に示す例の左側面説明図である。FIG. 6 is a left side explanatory diagram of the example shown in FIG. 5. 図５に示す例の内筒の正面説明図である。It is front explanatory drawing of the inner cylinder of the example shown in FIG. 図５に示す例の回転式摩擦ダンパの正面説明図であるIt is front explanatory drawing of the rotary friction damper of the example shown in FIG. 本発明の好ましい実施の形態の更に他の例の図１０に示すＸ−Ｘ線矢視断面図である。It is XX arrow directional cross-sectional view shown in FIG. 10 of another example of preferable embodiment of this invention. 図９に示す例の左側面説明図である。FIG. 10 is a left side explanatory view of the example shown in FIG. 9. 図９に示す例の外径側の筒体の斜視説明図である。FIG. 10 is a perspective explanatory view of a cylindrical body on the outer diameter side in the example shown in FIG. 9. 図９に示す例の外径側の筒体の右側面説明図である。It is right side explanatory drawing of the cylindrical body of the outer diameter side of the example shown in FIG. 図９に示す例の内径側の筒体の正面説明図である。It is front explanatory drawing of the cylindrical body of the internal diameter side of the example shown in FIG. 図１３に示す内径側の筒体の左側面説明図である。It is left side explanatory drawing of the cylindrical body by the side of an inner diameter shown in FIG. 図１３に示す内径側の筒体の右側面説明図である。It is right side explanatory drawing of the cylindrical body by the side of an inner diameter shown in FIG. 図１３に示す内径側の筒体の図１４に示すＸＶＩ−ＸＶＩ線矢視断面図である。FIG. 15 is a cross-sectional view taken along line XVI-XVI shown in FIG. 14 of the inner diameter side cylinder shown in FIG. 13. 図９に示す例の内筒の正面説明図である。It is front explanatory drawing of the inner cylinder of the example shown in FIG. 本発明の好ましい実施の形態の更に他の例の説明図である。It is explanatory drawing of the further another example of preferable embodiment of this invention. 図１８に示す例の内径側の筒体及びこの筒体に装着された弾性環状体の正面説明図である。It is front explanatory drawing of the cylindrical body by the side of the internal diameter of the example shown in FIG. 18, and the elastic annular body with which this cylindrical body was mounted | worn. 本発明の好ましい実施の形態の更に他の例の説明図である。It is explanatory drawing of the further another example of preferable embodiment of this invention.

符号の説明Explanation of symbols

１ 回転式摩擦ダンパ
２、１２ 内周面
３ 回転軸
４ 外周面
５ 内筒本体
７ 突起
８ 内筒
９ 凹所
１０ 外面
１１ 凹所面
１３ 外筒
１４ 外周面
１５ ハウジング
１６ 内周面 DESCRIPTION OF SYMBOLS 1 Rotary friction damper 2, 12 Inner peripheral surface 3 Rotating shaft 4 Outer peripheral surface
5 Inner cylinder body 7 Protrusion 8 Inner cylinder 9 Recess 10 Outer surface 11 Recessed surface 13 Outer tube 14 Outer surface 15 Housing 16 Inner surface

Claims (12)

径方向に突出した突起及びこの突起を受容すると共に径方向に凹んだ凹所のうちの一方を有すると共に回転軸に固定される合成樹脂製の内筒と、径方向に突出した突起及びこの突起を受容すると共に径方向に凹んだ凹所のうちの他方を有すると共に内筒を回転自在に支持する一方、ハウジングに固定される合成樹脂製の外筒とを具備しており、突起は、その外面で凹所を規定する凹所面に接触しており、外筒は、軸方向において二つに分割されており、二つに分割されて軸方向の一方の分割体と軸方向の他方の分割体とからなる外筒において、当該一方の分割体と他方の分割体とは、その分割面で互いに対面されて連結手段により互いに連結されている回転式摩擦ダンパ。 A radially projecting projection and a synthetic resin inner cylinder that has one of the recesses that receive the projection and that are recessed in the radial direction and are fixed to the rotating shaft, and a radially projecting projection and the projection And has a synthetic resin outer cylinder fixed to the housing, while having the other of the recesses radially recessed and rotatably supporting the inner cylinder. The outer surface is in contact with the recess surface that defines the recess, and the outer cylinder is divided into two parts in the axial direction. In the outer cylinder composed of a divided body, the one divided body and the other divided body face each other at their divided surfaces and are connected to each other by connecting means . 突起は、台形状の断面を有した少なくとも一つの円環状の突部を有しており、凹所は、突部に相補的な形状を有している円環状の凹部を有している請求項１に記載の回転式摩擦ダンパ。   The protrusion has at least one annular protrusion having a trapezoidal cross section, and the recess has an annular recess having a shape complementary to the protrusion. Item 2. The rotary friction damper according to Item 1. 各分割体は、その分割面側に鍔部を有しており、連結手段は、両鍔部を弾性的に抱持する拡径自在な円環体を具備している請求項１又は２に記載の回転式摩擦ダンパ。3. Each divided body has a flange on the side of the divided surface, and the connecting means includes a ring body having an expandable diameter that elastically holds both flanges. The described rotary friction damper. 径方向に突出した突起及びこの突起を受容すると共に径方向に凹んだ凹所のうちの一方を有すると共に回転軸に固定される合成樹脂製の内筒と、径方向に突出した突起及びこの突起を受容すると共に径方向に凹んだ凹所のうちの他方を有すると共に内筒を回転自在に支持する一方、ハウジングに固定される合成樹脂製の外筒とを具備しており、突起は、その外面で凹所を規定する凹所面に接触しており、外筒は、周方向において少なくとも二つに分割されており、少なくとも二つに分割されて一方の分割体と他方の分割体とからなる外筒において、当該一方の分割体と他方の分割体とは、その分割面で互いに対面されて連結手段により互いに連結されている回転式摩擦ダンパ。A radially projecting projection and a synthetic resin inner cylinder that has one of the recesses that receive the projection and that are recessed in the radial direction and are fixed to the rotating shaft, and a radially projecting projection and the projection And has a synthetic resin outer cylinder fixed to the housing, while having the other of the recesses radially recessed and rotatably supporting the inner cylinder. The outer cylinder is in contact with the recess surface that defines the recess, and the outer cylinder is divided into at least two parts in the circumferential direction, and is divided into at least two parts from one divided body and the other divided body. In this outer cylinder, the one divided body and the other divided body face each other at their divided surfaces and are connected to each other by connecting means. 突起は、台形状の断面を有した少なくとも一つの円環状の突部を有しており、凹所は、突部に相補的な形状を有している円環状の凹部を有している請求項４に記載の回転式摩擦ダンパ。  The protrusion has at least one annular protrusion having a trapezoidal cross section, and the recess has an annular recess having a shape complementary to the protrusion. Item 5. The rotary friction damper according to Item 4. 各分割体は、外周面に周方向に伸びた少なくとも一つの溝を有した半円筒部を具備しており、連結手段は、半円筒部の夫々の溝を通って周方向に伸びた弾性環状体を具備している請求項４又は５に記載の回転式摩擦ダンパ。 Each divided body includes a semi-cylindrical portion having at least one groove extending in the circumferential direction on the outer peripheral surface, and the connecting means is an elastic ring extending in the circumferential direction through each groove of the semi-cylindrical portion. The rotary friction damper according to claim 4 or 5 , comprising a body. 径方向に突出した突起及びこの突起を受容すると共に径方向に凹んだ凹所のうちの一方を有すると共に回転軸に固定される合成樹脂製の内筒と、径方向に突出した突起及びこの突起を受容すると共に径方向に凹んだ凹所のうちの他方を有すると共に内筒を回転自在に支持する一方、ハウジングに固定される合成樹脂製の外筒とを具備しており、突起は、螺旋状突部を有しており、螺旋状突部は、その外面で凹所を規定する凹所面に接触しており、凹所は、螺旋状突部を受容する螺旋状凹部を有しており、外筒の内周面は、その外周面に対して軸方向に移動自在となっている回転式摩擦ダンパ。 A radially projecting projection and a synthetic resin inner cylinder that has one of the recesses that receive the projection and that are recessed in the radial direction and are fixed to the rotating shaft, and a radially projecting projection and the projection And has an outer cylinder made of synthetic resin that is fixed to the housing, and has a spiral spiral. The spiral projection is in contact with the recess surface defining the recess at its outer surface, and the recess has a spiral recess that receives the spiral projection. cage, the inner peripheral surface of the outer cylinder is movable and is optionally that rotating friction damper in the axial direction with respect to an outer peripheral surface. 外筒は、内周面で内筒を回転自在に支持する内径側の合成樹脂製の筒体と、この筒体の外周面に少なくとも軸方向に滑り移動自在に接触する内周面を有すると共にハウジングに固定される外周面を有した外径側の合成樹脂製の筒体とを具備している請求項７に記載の回転式摩擦ダンパ。   The outer cylinder has a cylindrical tube made of synthetic resin on the inner diameter side that rotatably supports the inner cylinder on the inner peripheral surface, and an inner peripheral surface that is slidably in contact with the outer peripheral surface of the cylindrical body at least in the axial direction. The rotary friction damper according to claim 7, comprising a cylindrical body made of synthetic resin on the outer diameter side having an outer peripheral surface fixed to the housing. 内径側の筒体は、一方の端面から軸方向に伸びた少なくとも一つのスリットを有している請求項８に記載の回転式摩擦ダンパ。   The rotary friction damper according to claim 8, wherein the cylindrical body on the inner diameter side has at least one slit extending in the axial direction from one end face. 内径側の筒体は、外周面に周方向に伸びた少なくとも一つの環状溝を有しており、当該環状溝に装着されている弾性環状体により弾性的に縮径されるようになっている請求項９に記載の回転式摩擦ダンパ。   The cylinder on the inner diameter side has at least one annular groove extending in the circumferential direction on the outer peripheral surface, and is elastically reduced in diameter by an elastic annular body mounted in the annular groove. The rotary friction damper according to claim 9. 弾性環状体は、外径側の筒体の内周面に軸方向に滑り移動自在に弾性接触するように、内径側の筒体の環状溝に装着されている請求項１０に記載の回転式摩擦ダンパ。   11. The rotary type according to claim 10, wherein the elastic annular body is mounted in an annular groove of the inner diameter side cylindrical body so as to elastically contact the inner peripheral surface of the outer diameter side cylindrical body so as to be slidable in the axial direction. Friction damper. 弾性環状体は、外径側の筒体の内周面に非接触となるように、内径側の筒体の環状溝に装着されている請求項１０に記載の回転式摩擦ダンパ。   The rotary friction damper according to claim 10, wherein the elastic annular body is mounted in an annular groove of the inner diameter side cylinder so as not to contact the inner peripheral surface of the outer diameter side cylinder.
JP2007246263A 2007-09-21 2007-09-21 Rotary friction damper Active JP5029248B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007246263A JP5029248B2 (en) 2007-09-21 2007-09-21 Rotary friction damper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007246263A JP5029248B2 (en) 2007-09-21 2007-09-21 Rotary friction damper

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2011253901A Division JP2012037060A (en) 2011-11-21 2011-11-21 Rotary friction damper

Publications (2)

Publication Number Publication Date
JP2009074661A JP2009074661A (en) 2009-04-09
JP5029248B2 true JP5029248B2 (en) 2012-09-19

Family

ID=40609826

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007246263A Active JP5029248B2 (en) 2007-09-21 2007-09-21 Rotary friction damper

Country Status (1)

Country Link
JP (1) JP5029248B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7482301B1 (en) 2023-08-18 2024-05-13 株式会社オリジン Rotary damper and combination of rotary damper and link mechanism

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5827140Y2 (en) * 1977-06-03 1983-06-13 三輪精機株式会社 shock absorption joint
JPS56149144U (en) * 1980-04-10 1981-11-09
JPH0738784Y2 (en) * 1989-11-07 1995-09-06 三菱重工業株式会社 Anti-resonance fluid control valve
JPH05154864A (en) * 1991-08-06 1993-06-22 Sankyo Kasei Co Ltd Hinge and its manufacture
JP3098315B2 (en) * 1992-02-17 2000-10-16 三共化成株式会社 Plastic moldings
JPH0726825A (en) * 1993-07-06 1995-01-27 Kato Spring Seisakusho:Kk Shaft lock device and manufacturing method thereof
JPH0942271A (en) * 1995-07-28 1997-02-10 Mitsumi Electric Co Ltd Electronic applied apparatus having friction hinge
JP2001336523A (en) * 2000-05-31 2001-12-07 Yanagawa Seiko Kk Friction plate for hinge and hinge
JP4473419B2 (en) * 2000-07-05 2010-06-02 株式会社ニフコ Rotating damper and assist grip device
TW200500545A (en) * 2003-04-14 2005-01-01 Salice Arturo Spa Spiral-action damper

Also Published As

Publication number Publication date
JP2009074661A (en) 2009-04-09

Similar Documents

Publication Publication Date Title
JP7456481B2 (en) valve device
JP6629550B2 (en) Rotary joint
CN109844381B (en) Non-foldable flexible sealing diaphragm and sealing assembly for rotary shaft equipment
WO2015198807A1 (en) Sealing device
US9115812B2 (en) Plug valve with a spring biased plug
CN104220769A (en) Rotary cartridge seal with internal face-sealing surfaces
JP5029248B2 (en) Rotary friction damper
JP2012037060A (en) Rotary friction damper
JP7076025B2 (en) damper
US20080174074A1 (en) Ring seal with inner lip
EP3722634B1 (en) Damper
US10184572B2 (en) Axially preloaded sealing element
TWI654388B (en) Screw device
JP2015102117A (en) Roller unit, and tripod type constant velocity joint
JP6751807B2 (en) Rotary joint
CN109477578A (en) Sealing structure and its manufacturing method
US4271858A (en) Butterfly valve having temperature responsive sealing means
KR20190049453A (en) Apparatus having seal mechanism
US9360115B2 (en) Rotary seal with anti-slip energizing O-ring
JP7166985B2 (en) Anti-rotation pin for mechanical seal
JP6795412B2 (en) mechanical seal
JP6852657B2 (en) Sealing device
JP7110143B2 (en) Constant velocity universal joint with seal
JP4273866B2 (en) Steering column mechanism
JP2022172542A (en) mechanical seal

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20100625

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110825

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110920

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20111121

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20120529

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20120611

R150 Certificate of patent or registration of utility model

Ref document number: 5029248

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20150706

Year of fee payment: 3

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

R360 Written notification for declining of transfer of rights

Free format text: JAPANESE INTERMEDIATE CODE: R360

R370 Written measure of declining of transfer procedure

Free format text: JAPANESE INTERMEDIATE CODE: R370

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250