JP5415164B2 - Unidirectional rotating damper and hinge mechanism, opening / closing mechanism and range hood provided with the damper - Google Patents

Unidirectional rotating damper and hinge mechanism, opening / closing mechanism and range hood provided with the damper Download PDF

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JP5415164B2
JP5415164B2 JP2009150462A JP2009150462A JP5415164B2 JP 5415164 B2 JP5415164 B2 JP 5415164B2 JP 2009150462 A JP2009150462 A JP 2009150462A JP 2009150462 A JP2009150462 A JP 2009150462A JP 5415164 B2 JP5415164 B2 JP 5415164B2
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opening
peripheral surface
shaft
cylindrical
way clutch
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JP2011007403A (en
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功治 田原
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Oiles Corp
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Description

本発明は、一方向に摩擦摺動抵抗を有するダンパ並びに該ダンパを備えたヒンジ機構、開閉機構、及び煙吸引部の整流板に該開閉機構を採用したレンジフードに関する。   The present invention relates to a damper having frictional sliding resistance in one direction, a hinge mechanism provided with the damper, an opening / closing mechanism, and a range hood that employs the opening / closing mechanism for a rectifying plate of a smoke suction portion.

従来、厨房や家庭の台所において、コンロ等から生じる調理の際の煙を換気扇によって吸引し屋外へ排出するにあたり、効果的に煙を吸引して排煙する目的でレンジフードが使用される。一般的には、このレンジフードの内部にフィルターが配され、吸引した煙の中の油分等を付着させ、油の飛散を抑えるように構成されている。   2. Description of the Related Art Conventionally, in kitchens and home kitchens, range hoods are used for the purpose of effectively sucking smoke and discharging smoke when sucking smoke generated from a stove or the like by a ventilator and discharging it outdoors. Generally, a filter is arranged inside the range hood, and is configured to adhere oil in the sucked smoke or the like to suppress oil scattering.

フィルターには煙中の油分が付着するため、レンジフードの吸引力の低下を防ぐ意味でも、フィルターは定期的に交換することが求められており、一般的には調理器具の上方に位置しているレンジフード内にある汚れたフィルターを取り出し、新規のフィルターに交換することが余儀なくされていた。   Since the oil in the smoke adheres to the filter, it is required to replace the filter periodically to prevent the suction power of the range hood from decreasing. Generally, it is located above the cooking utensil. It was forced to take out the dirty filter in the existing range hood and replace it with a new filter.

また、レンジフードへの煙の吸入を効率よく行うため、レンジフードの開口部に整流板を配する構成が用いられている場合には、その整流板を脱着して該フィルターを交換する必要があった。   In addition, in order to efficiently inhale smoke into the range hood, when a configuration in which a rectifying plate is arranged at the opening of the range hood is used, it is necessary to remove the rectifying plate and replace the filter. there were.

整流板を取り外す場合には、レンジフードに取付ねじで固定されている整流板を落下しないように抑えながら、取付ねじを外す必要があり、一人での作業は困難であった。また、整流板の一方を回転支持するようにし、他方を取付ねじ又は嵌め込み等による固定手段で取り付けた構成も提供されているが、固定手段を解放すると整流板の自重により急激に下方に回動し作業者に当たる虞があるため、整流板を手で支持しながらでなければ開放できなかった。   When removing the rectifying plate, it was necessary to remove the mounting screw while keeping the rectifying plate fixed to the range hood with the mounting screw from dropping, and it was difficult to work alone. There is also a configuration in which one of the rectifying plates is rotationally supported and the other is attached by fixing means such as mounting screws or fittings. However, when the fixing means is released, it suddenly rotates downward due to its own weight. However, since there is a possibility of hitting the operator, it could not be opened unless the current plate was supported by hand.

整流板の開放方向への速度を抑制する手段として、特許文献１には、閉状態から開状態となる開動作中において、煙吸引部が所定の距離以上下方に達したときにその開動作を減速させ、所定位置に達すると開動作を止めてその状態を保持する構成が開示されている。   As means for suppressing the speed of the current plate in the opening direction, Patent Document 1 discloses that when the smoke suction part reaches a predetermined distance or more during the opening operation from the closed state to the open state, the opening operation is performed. A configuration is disclosed in which the vehicle is decelerated and the opening operation is stopped and the state is maintained when a predetermined position is reached.

特開２００６−３００３５３号公報JP 2006-300333 A

しかし、特許文献１は、煙吸引部（本願発明における整流板）が所定の距離以上下方に達したときに開動作を減速させるようにステー内にトーションスプリングが配されている構成であるために、煙吸引部を開放した瞬間はトーションスプリングの付勢力が小さいため開放時の速度は減速されず、煙吸引部の自重とトーションスプリングの弾性力が釣り合った後は、煙吸引部はそれ以上回転できないため開口状態をさらに大きくすることはできないため、作業者が開口の程度をさらに大きくすることが困難であった。   However, Patent Document 1 has a configuration in which a torsion spring is arranged in the stay so as to decelerate the opening operation when the smoke suction part (the current plate in the present invention) reaches a lower position than a predetermined distance. When the smoke suction part is opened, the urging force of the torsion spring is small, so the speed at the time of opening is not reduced. After the weight of the smoke suction part and the elastic force of the torsion spring are balanced, the smoke suction part rotates further. Since the opening state cannot be further increased, it is difficult for the operator to further increase the degree of opening.

このように、特許文献１はトーションスプリングのような弾性部材を配しているため、開口具合により付勢力が異なり、開放時の速度を減速させると、自重と釣り合う位置が開口具合の小さい位置となり、開口具合を大きくしようとすると、開放時の開放速度が減速されず、作業者に当たる虞があり、トーションスプリングの調整が非常に難しかった。   In this way, since Patent Document 1 is provided with an elastic member such as a torsion spring, the biasing force differs depending on the opening condition, and when the speed at the time of opening is reduced, the position that balances with its own weight becomes a position with a small opening condition. When attempting to increase the degree of opening, the opening speed at the time of opening is not reduced, and there is a risk of hitting the operator, and adjustment of the torsion spring is very difficult.

本発明は、このような状況に鑑みてなされたものであって、一方の端面がヒンジ機構で支持され、他方の端面がヒンジ機構部を中心に上下方向に回動する整流板を開放する場合等において、急激な速度で開口することなく減速された状態で自重により開口することができ、さらに開口具合を必要に応じて、作業者が手動により、開口状態を整流板の自重とダンパ抵抗力で定まる所定位置以上に自在に調整することができ、閉鎖方向への作動においては抵抗力を生じることなく閉鎖作動を行うことなどを可能とする一方向回転ダンパ並びに該ダンパを備えたヒンジ機構、開閉機構及びレンジフードを提供することにある。   The present invention has been made in view of such a situation, and one end face is supported by a hinge mechanism, and the other end face opens a rectifying plate that rotates up and down around the hinge mechanism portion. In this case, it can be opened by its own weight while being decelerated without opening at a rapid speed, and if necessary, the opening state can be manually adjusted by the operator with the weight of the current plate and the damper resistance. A one-way rotating damper that can be freely adjusted beyond a predetermined position determined by the above, and that can be closed without causing a resistance force in the operation in the closing direction, and a hinge mechanism including the damper, To provide an opening / closing mechanism and a range hood.

上記目的を達成するため、本発明は、一方向回転ダンパであって、軸の外周面全周に設けられる歯車と、各々が弾性部材で付勢された複数の爪部材とからなり、該複数の爪部材によって、前記歯車の歯をピッチ角を該爪部材の数で除した大きさ毎に該歯車の回転を制止することにより、該軸の軸線回りの一方向の回転のみを許容する一方向クラッチと、該一方向クラッチの円筒状外周面の全面と円筒状内周面の全面で接するように配置された筒状摩擦材と、前記筒状摩擦材の円筒状内周面と前記一方向クラッチの円筒状外周面との接触圧力を自在に調整する締め付け部材とを備え、前記軸に、該軸の回転不能な方向に所定以上の力が作用したとき、又は前記一方向クラッチに、前記軸を該軸の回転不能な方向に回転させようとする所定以上の力が作用したときに、前記一方向クラッチの円筒状外周面及び前記筒状摩擦材の円筒状内周面の一方が他方の面上を摺動し、前記一方向クラッチ及び筒状摩擦材の一方が他方に対して相対的に回転することを特徴とする。 In order to achieve the above object, the present invention is a unidirectional rotary damper, comprising a gear provided on the entire outer peripheral surface of a shaft, and a plurality of claw members each urged by an elastic member. one by the pawl member, by arresting rotation of the gear teeth of the gear pitch angle for each size divided by the number of claw members, for permitting only rotation in one direction about the axis of said shaft A one-way clutch, a cylindrical friction material disposed so as to be in contact with the entire surface of the cylindrical outer peripheral surface of the one-way clutch and the entire surface of the cylindrical inner peripheral surface , and the cylindrical inner peripheral surface of the cylindrical friction material A clamping member that freely adjusts the contact pressure with the cylindrical outer peripheral surface of the directional clutch, and when a predetermined force or more is applied to the shaft in a direction in which the shaft cannot rotate, or to the one-way clutch, More than a predetermined amount to rotate the shaft in a direction in which the shaft cannot rotate. When There exerted, the one cylindrical outer peripheral surface and a cylindrical inner circumferential surface of the cylindrical friction member of the one-way clutch slides on the other surface, one of said one-way clutch and the cylindrical friction material Is rotated relative to the other.

そして、本発明によれば、一方の回転方向に対しては軽々と回動でき、他方の回転方向
に対しては摩擦力を付与した状態で摺動できるため、他方の回転方向には所定の作用力以
上の入力が働かない限り不動に固定でき、摩擦係数から定まる摩擦力以上の力が作用する
と動き始め、さらに該摩擦力以上の力が作用している間だけ回動するという一種のトリガ
ー機能を有する一方向回転ダンパを提供することができる。
また、前記筒状摩擦材の内周面と前記一方向クラッチの外周面との接触圧力を自在に調整する締め付け部材を備えるため、摩擦摺動面へ与える圧力を変化させ、摺動に要する摩擦力を所望の大きさにすることができる。
さらに、複数の爪部材を設けることで、軸を一方の回転方向に回動させる際に軸の固定位置を細かく調整することができ、一方向クラッチの軸に設けられる歯車の歯に対し、複数設けた爪部材の位相差は、歯のピッチ角を爪部材の数で除した大きさにしているため、歯車の歯と爪部材の歯合が、複数設けた爪部材のいずれかの位置で生じ歯合する位置を細かく設定できる。 And according to this invention, since it can rotate lightly with respect to one rotation direction, and can slide in the state which provided the frictional force with respect to the other rotation direction, in the other rotation direction, it is predetermined. A type of trigger that can be fixed immovably unless an input greater than the applied force is applied, starts moving when a force greater than the friction force determined from the friction coefficient is applied, and rotates only while a force greater than the friction force is applied A one-way rotating damper having a function can be provided.
In addition, since a clamping member that freely adjusts the contact pressure between the inner peripheral surface of the cylindrical friction material and the outer peripheral surface of the one-way clutch is provided, the friction applied to the friction sliding surface is changed to change the friction required for sliding. The force can be as large as desired.
Furthermore, by providing a plurality of claw members, the fixed position of the shaft can be finely adjusted when the shaft is rotated in one rotational direction, and there are a plurality of gear teeth for the gear teeth provided on the shaft of the one-way clutch. Since the phase difference of the provided claw member is the size obtained by dividing the tooth pitch angle by the number of claw members, the gear teeth and the claw member are meshed at any position of the provided claw members. It is possible to finely set the position where the resulting teeth are engaged.

上記一方向回転ダンパにおいて、前記筒状摩擦材が、金属製の裏金と、該裏金の表面に形成された多孔質青銅焼結層と、該多孔質青銅焼結層の孔隙及び表面に充填被覆された合成樹脂組成物のすべり層とからなり、該すべり層を内側にして円筒状に捲回された複層巻き軸受けとすることができる。これによれば、筒状摩擦材に必要な強度を確保しつつ、一方向クラッチの外周面との間で適切な摩擦力を発揮することができる。   In the unidirectional rotating damper, the cylindrical friction material includes a metal back metal, a porous bronze sintered layer formed on the surface of the back metal, and a filling coating on the pores and the surface of the porous bronze sintered layer. It is possible to make a multi-layer wound bearing which is made of a synthetic resin composition slip layer and wound in a cylindrical shape with the slip layer inside. According to this, it is possible to exert an appropriate frictional force with the outer peripheral surface of the one-way clutch while ensuring the strength required for the cylindrical friction material.

また、本発明は、ヒンジ機構であって、上記いずれかに記載の一方向回転ダンパを備え、前記軸に連結された第１の部材と、該一方向回転ダンパの前記軸以外の部分に連結された第２の部材との間でヒンジ機能を発揮させることを特徴とする。このヒンジ機構によれば、上述のように、一方の回転方向に対しては軽々と回動でき、他方の回転方向には所定の作用力以上の入力が働かない限り不動に固定でき、トリガー機能を有することなどの特徴を備えたヒンジ機構を提供することができる。   Moreover, this invention is a hinge mechanism, Comprising: The one-way | direction rotation damper in any one of the above is provided, It connects with the part other than the said shaft of the 1st member connected with the said axis | shaft, and this one-way rotation damper A hinge function is exhibited between the second member and the second member. According to this hinge mechanism, as described above, it can be rotated lightly in one rotation direction, and can be fixed immovably unless an input of a predetermined working force or more is applied in the other rotation direction. It is possible to provide a hinge mechanism having features such as

さらに、本発明は、開閉機構であって、上記ヒンジ機構を備え、前記第１及び第２の部材のいずれか一方が開閉対象物への取付部を備えることを特徴とする。   Furthermore, the present invention is an opening / closing mechanism including the hinge mechanism, wherein one of the first and second members includes a mounting portion for an opening / closing object.

この開閉機構によれば、前記発明と同様、一方の回転方向に対しては、開閉対象物を軽々と回動することができ、他方の回転方向に対しては、摩擦力により生じる抵抗力を発揮させながら回動することができる。また、他方の回転方向へ作用する外力の方向に重力を利用する場合には、開閉対象物の自重により生じる下方への回転モーメントによる回転力と、筒状摩擦部材及び一方向クラッチ間の摩擦力との釣り合いが取れた位置で、筒状摩擦部材又は一方向クラッチの回転を停止させることができるため、予め摩擦面へ与えられる摩擦力を所定の値に設定することで、摩擦力付与機構を介して回転する他方の回動角度を所望の角度に定めることができる。   According to this opening / closing mechanism, similarly to the above-described invention, the object to be opened / closed can be easily rotated with respect to one rotational direction, and the resistance force generated by the frictional force can be applied to the other rotational direction. It can be rotated while being demonstrated. Also, when using gravity in the direction of the external force acting in the other rotational direction, the rotational force due to the downward rotational moment caused by the weight of the object to be opened and closed, and the frictional force between the cylindrical friction member and the one-way clutch The rotation of the cylindrical friction member or the one-way clutch can be stopped at a position balanced with the frictional force applying mechanism by setting the frictional force applied to the friction surface to a predetermined value in advance. The other rotation angle that rotates through the center can be set to a desired angle.

また、前記複数の爪部材を備えた一方向クラッチを用いることで、摩擦力付与機構で付与する摩擦力が回動しようとする回転モーメントから生じる回転力以上で固定されている場合において、蓋や扉の係止位置を歯車と爪部材の歯合により細かく設定することもできる。   Further, by using a one-way clutch provided with the plurality of claw members, when the frictional force applied by the frictional force applying mechanism is fixed at a rotational force or more generated from a rotational moment to rotate, a lid or The locking position of the door can be finely set by the engagement between the gear and the claw member.

さらにまた、本発明は、レンジフードであって、上記開閉機構を備え、前記開閉対象物が整流板であることを特徴とする。このレンジフードによれば、整流板を開放する場合、急激な速度で開口することなく減速された状態で自重により開口することができ、さらに開口具合を必要に応じて、作業者が手動により、開口状態を整流板の自重とダンパ抵抗力で定まる所定位置以上に自在に調整することができ、閉鎖方向への作動においては抵抗力を生じることなく閉鎖作動を行うことなどが可能となる。   Furthermore, the present invention is a range hood, comprising the opening / closing mechanism, and the opening / closing object is a current plate. According to this range hood, when opening the baffle plate, it can be opened by its own weight in a state where it is decelerated without opening at a rapid speed, and if necessary, the operator manually The opening state can be freely adjusted to a predetermined position or more determined by the weight of the rectifying plate and the damper resistance force, and in the operation in the closing direction, the closing operation can be performed without generating a resistance force.

以上のように、本発明によれば、急激な速度で開口することなく減速された状態で自重により開口することができ、さらに開口具合を必要に応じて、作業者が手動により、開口状態を整流板の自重とダンパ抵抗力で定まる所定位置以上に自在に調整することができ、閉鎖方向への作動においては抵抗力を生じることなく閉鎖作動を行うことなどを可能とする一方向回転ダンパ並びに該ダンパを備えたヒンジ機構、開閉機構及びレンジフードを提供することができる。   As described above, according to the present invention, it is possible to open by its own weight in a state of being decelerated without opening at a rapid speed, and the operator can manually change the opening state manually if necessary. A unidirectional rotating damper that can be freely adjusted to a predetermined position or more determined by the weight of the current plate and the damper resistance force, and that can be closed without causing a resistance force in the operation in the closing direction, and A hinge mechanism, an opening / closing mechanism, and a range hood provided with the damper can be provided.

本発明にかかる一方向回転ダンパ（又はヒンジ機構）を備えた開閉機構の一実施の形態を示す図であって、（ａ）は分解斜視図、（ｂ）は装置側組立体を示す斜視図、（ｃ）は扉側組立体を示す斜視図である。It is a figure which shows one Embodiment of the opening-closing mechanism provided with the one way rotation damper (or hinge mechanism) concerning this invention, Comprising: (a) is a disassembled perspective view, (b) is a perspective view which shows an apparatus side assembly. (C) is a perspective view which shows a door side assembly. 図１の開閉機構をレンジフードの整流板の開閉に利用した場合の動作説明図である。It is operation | movement explanatory drawing at the time of utilizing the opening-and-closing mechanism of FIG. 1 for opening and closing of the baffle plate of a range hood. 図２のレンジフードにおける開閉機構の動作を説明するための図である。It is a figure for demonstrating operation | movement of the opening-and-closing mechanism in the range hood of FIG. 図１に示した開閉機構のベースプレートの他の例を示す平面図である。It is a top view which shows the other example of the baseplate of the opening / closing mechanism shown in FIG. 図４に示したベースプレートに爪部材とばねを収容した状態を示す平面図である。It is a top view which shows the state which accommodated the claw member and the spring in the base plate shown in FIG.

次に、本発明を実施するための形態について図面を参照しながら詳細に説明する。   Next, embodiments for carrying out the present invention will be described in detail with reference to the drawings.

図１は、本発明にかかる一方向回転ダンパ（又はヒンジ機構）を備えた開閉機構の一実施の形態を示し、この開閉機構１は、大別して、第１ブラケット２と、トルク軸６と、カバープレート８と、ラチェット軸１０と、爪部材１２と、ばね１３と、ベースプレート１５と、軸受け１６と、軸受けハウジング１７、１８と、第２ブラケット２２等で構成される。   FIG. 1 shows an embodiment of an opening / closing mechanism provided with a unidirectional rotating damper (or hinge mechanism) according to the present invention. The opening / closing mechanism 1 is roughly divided into a first bracket 2, a torque shaft 6, The cover plate 8, the ratchet shaft 10, the claw member 12, the spring 13, the base plate 15, the bearing 16, the bearing housings 17 and 18, the second bracket 22, and the like.

第１ブラケット２は、装置や建物等への取付部２ａと、軸受け２ｂとを備え、軸受け２ｂには、トルク軸６の小径部６ｂが収容され、ボルト３及びナット４によって締結されて保持される。トルク軸６は、大径部６ａの両側に小径部６ｂと、挿通孔６ｃを備える。   The first bracket 2 includes a mounting portion 2a to a device or a building, and a bearing 2b. A small diameter portion 6b of the torque shaft 6 is accommodated in the bearing 2b, and is fastened and held by a bolt 3 and a nut 4. The The torque shaft 6 includes a small diameter portion 6b and an insertion hole 6c on both sides of the large diameter portion 6a.

カバープレート８は、矩形板状の基部８ａに円形の開口部８ｂと、２箇所にスリット８ｃ、８ｄを備える。   The cover plate 8 includes a rectangular opening 8b in a rectangular plate-shaped base 8a, and slits 8c and 8d at two locations.

ラチェット軸１０は、円筒部１０ａの軸方向中央部に歯車１０ｂが設けられ、後述するように、開閉機構１を組み立てた状態でベースプレート１５に収容された爪部材１２と噛み合う。尚、ラチェット軸１０の円筒部１０ａにトルク軸６の大径部６ａを挿入することで、ラチェット軸１０とトルク軸６が連結されるが、ラチェット軸１０の内側でトルク軸６が回転するのを防止するため、円筒部１０ａの内周面及び大径部６ａの外周面には、セレーション加工が施される。   The ratchet shaft 10 is provided with a gear 10b at the center in the axial direction of the cylindrical portion 10a, and meshes with the claw member 12 accommodated in the base plate 15 in the assembled state of the opening / closing mechanism 1, as will be described later. The ratchet shaft 10 and the torque shaft 6 are connected by inserting the large diameter portion 6 a of the torque shaft 6 into the cylindrical portion 10 a of the ratchet shaft 10, but the torque shaft 6 rotates inside the ratchet shaft 10. In order to prevent this, serration is applied to the inner peripheral surface of the cylindrical portion 10a and the outer peripheral surface of the large-diameter portion 6a.

ベースプレート１５は、円板状の基部１５ａに、同芯状に設けられた円形孔１５ｂと、爪部材収容部１５ｃと、ばね収容部１５ｄとを備える。爪部材１２は、円板状の基部１２ａから爪部１２ｂが突設され、ベースプレート１５の爪部材収容部１５ｃに収容される。また、ばね１３は、ベースプレート１５のばね収容部１５ｄに収容され、爪部材１２を一方向に付勢する。これによって、ベースプレート１５の円形孔１５ｂに挿入されたラチェット軸１０の歯車１０ｂに対して一方向のみの回転を許容する一方向クラッチが構成される。   The base plate 15 includes a circular hole 15b, a claw member accommodating portion 15c, and a spring accommodating portion 15d provided concentrically on a disc-shaped base portion 15a. The claw member 12 has a claw portion 12 b protruding from a disc-shaped base portion 12 a and is accommodated in a claw member accommodation portion 15 c of the base plate 15. The spring 13 is housed in the spring housing portion 15d of the base plate 15 and biases the claw member 12 in one direction. Thus, a one-way clutch that allows rotation in only one direction with respect to the gear 10b of the ratchet shaft 10 inserted into the circular hole 15b of the base plate 15 is configured.

軸受け１６は、金属製の裏金と、該裏金の表面に形成された多孔質青銅焼結層と、該多孔質青銅焼結層の孔隙及び表面に充填被覆された合成樹脂組成物のすべり層とからなり、該すべり層を内側にして円筒状に捲回された複層巻き軸受けである。この軸受け１６は、ベースプレート１５の外周表面に装着されるとともに、軸受けハウジング１７、１８との間の開口部１９に収容され、ボルト２０、２１によって締付力が加えられる。   The bearing 16 includes a metal back metal, a porous bronze sintered layer formed on the surface of the back metal, a pore of the porous bronze sintered layer, and a sliding layer of a synthetic resin composition filled and coated on the surface. A multi-layer wound bearing wound in a cylindrical shape with the sliding layer inside. The bearing 16 is mounted on the outer peripheral surface of the base plate 15 and is accommodated in an opening 19 between the bearing housings 17 and 18 and a tightening force is applied by bolts 20 and 21.

軸受けハウジング１７は、軸受けハウジング１８とで軸受け１６の取付ハウジングを構成し、扉等への取付部１７ａには、扉等に締結手段を介して軸受けハウジング１７を固定するための貫通孔１７ｃを備える。取付部１７ａには、軸受け座を備えた立設部１７ｂが設けられ、立設部１７ｂにはスリット１７ｄが穿設される。   The bearing housing 17 constitutes a mounting housing for the bearing 16 together with the bearing housing 18, and a mounting portion 17a for the door or the like is provided with a through hole 17c for fixing the bearing housing 17 to the door or the like through fastening means. . The mounting portion 17a is provided with a standing portion 17b having a bearing seat, and a slit 17d is formed in the standing portion 17b.

軸受けハウジング１８は、軸受け座を備えた本体１８ａに、ボルト２０、２１によって軸受けハウジング１７と接続するための挿通孔１８ｃと、スリット１８ｂが形成される。   In the bearing housing 18, an insertion hole 18 c for connecting to the bearing housing 17 by bolts 20 and 21 and a slit 18 b are formed in a main body 18 a provided with a bearing seat.

第２ブラケット２２は、矩形板状の基部２２ａに円形の開口部２２ｂを有し、基部２２ａの側面縁部に係止爪２２ｃ、２２ｄを備える。   The second bracket 22 has a circular opening 22b in a rectangular plate-like base 22a, and includes locking claws 22c and 22d at side edges of the base 22a.

次に、上記各部品の組立要領について説明する。   Next, the assembling procedure of the above parts will be described.

第１ブラケット２の軸受け２ｂにトルク軸６の小径部６ｂを収容し、第１ブラケット２の挿通孔２ｃ及びトルク軸６の挿通孔６ｃにボルト３を挿通させ、ナット４で締めることで図１（ｂ）に示すように、装置側組立体２４が完成する。   The small diameter portion 6 b of the torque shaft 6 is accommodated in the bearing 2 b of the first bracket 2, the bolt 3 is inserted into the insertion hole 2 c of the first bracket 2 and the insertion hole 6 c of the torque shaft 6, and tightened with the nut 4. As shown in (b), the apparatus side assembly 24 is completed.

一方、ベースプレート１５の爪部材収容部１５ｃ及びばね収容部１５ｄに各々爪部材１２とばね１３とを収容し、円形孔１５ｂにラチェット軸１０の歯車１０ｂを収容し、ベースプレート１５の外周部に軸受け１６を装着し、これらを軸受けハウジング１７と軸受けハウジング１８とで形成される開口部１９に収容し、ボルト２０、２１で締め付ける。ラチェット軸１０の左側の円筒部１０ａにカバープレート８の開口部８ｂを挿通させ、ラチェット軸１０の右側の円筒部１０ａに第２ブラケット２２の開口部２２ｂを挿通させ、係止爪２２ｃ、２２ｄを各々軸受けハウジング１８のスリット１８ｂ、軸受けハウジング１７のスリット１７ｄ及びカバープレート８の２つのスリット８ｃ、８ｄに各々挿通させ、最後に係止爪２２ｃ、２２ｄの先端部を曲折させて、図１（ｃ）に示すように、扉側組立体２５が完成する。   On the other hand, the claw member 12 and the spring 13 are accommodated in the claw member accommodating portion 15c and the spring accommodating portion 15d of the base plate 15, respectively, the gear 10b of the ratchet shaft 10 is accommodated in the circular hole 15b, and the bearing 16 is provided on the outer peripheral portion of the base plate 15. Are accommodated in an opening 19 formed by the bearing housing 17 and the bearing housing 18, and tightened with bolts 20 and 21. The opening 8b of the cover plate 8 is inserted into the left cylindrical portion 10a of the ratchet shaft 10, the opening 22b of the second bracket 22 is inserted into the right cylindrical portion 10a of the ratchet shaft 10, and the locking claws 22c and 22d are inserted. The slits 18b of the bearing housing 18, the slit 17d of the bearing housing 17, and the two slits 8c, 8d of the cover plate 8 are respectively inserted, and finally the tips of the locking claws 22c, 22d are bent, as shown in FIG. ), The door-side assembly 25 is completed.

次に、上記装置側組立体２４と、扉側組立体２５とをレンジフードの整流板の開閉に用いた場合について図２及び図３を参照しながら説明する。   Next, the case where the apparatus side assembly 24 and the door side assembly 25 are used for opening and closing the current plate of the range hood will be described with reference to FIGS.

図２に示したレンジフード３１は、本体３２の下部に整流板３３を備え、上部に排気ダクト３４を備える。図１に示した装置側組立体２４を、図２（ａ）に示すように、本体３２の下部に固定し、装置側組立体２４と扉側組立体２５とを組み合わせ、扉側組立体２５の軸受けハウジング１７の取付部１７ａに整流板３３の左端部を固定する。   The range hood 31 shown in FIG. 2 includes a rectifying plate 33 at the lower part of the main body 32 and an exhaust duct 34 at the upper part. As shown in FIG. 2A, the apparatus side assembly 24 shown in FIG. 1 is fixed to the lower portion of the main body 32, and the apparatus side assembly 24 and the door side assembly 25 are combined. The left end portion of the rectifying plate 33 is fixed to the mounting portion 17 a of the bearing housing 17.

尚、上記のレンジフード３１では、装置側組立体２４を本体３２に取り付けるため、図３（ａ）に示すように、トルク軸６及びこれに連結されたラチェット軸１０は回転せず、ラチェット軸１０の外側に位置するベースプレート１５が回転する。この構成において、ベースプレート１５は、歯車１０ｂ、爪部材１２及びばね１３から形成される一方向クラッチの機能により、矢視Ｂ方向にのみ回転が許容され、反対方向へは回転することができない。   In the above-described range hood 31, since the apparatus-side assembly 24 is attached to the main body 32, as shown in FIG. 3A, the torque shaft 6 and the ratchet shaft 10 connected thereto do not rotate, and the ratchet shaft The base plate 15 located outside the 10 rotates. In this configuration, the base plate 15 is allowed to rotate only in the direction of the arrow B and cannot rotate in the opposite direction due to the function of the one-way clutch formed by the gear 10b, the claw member 12, and the spring 13.

また、ベースプレート１５と軸受け１６の間では、それらの接触面で構成される摩擦力付与機構により両者の動きが規制され、軸受け１６は、所定の作用力以上の入力が矢視Ａ方向に働かない限り、ベースプレート１５に対して不動に固定される。尚、矢視Ｂ方向に関しては、ベースプレート１５の回転に伴い、ベースプレート１５と一体となって回転する。そして、所定の作用力以上の入力が矢視Ａ方向に働くと、軸受け１６の内周面がベースプレート１５の外周表面上を摺動し、軸受け１６が矢視Ａ方向に回転する。   Further, between the base plate 15 and the bearing 16, the movement of both is restricted by a frictional force applying mechanism constituted by the contact surfaces thereof, and the bearing 16 does not receive an input exceeding a predetermined acting force in the direction of arrow A. As long as it is fixed relative to the base plate 15. In the direction of arrow B, the base plate 15 rotates together with the base plate 15 as the base plate 15 rotates. When an input greater than a predetermined acting force acts in the direction of arrow A, the inner peripheral surface of the bearing 16 slides on the outer peripheral surface of the base plate 15 and the bearing 16 rotates in the direction of arrow A.

図２（ａ）の状態から整流板３３を開ける場合、整流板３３を矢視Ａ方向に回動させようとすると、最初は、ベースプレート１５が回転しないため、整流板３３は開かないが、所定の作用力以上の入力を加えると、軸受け１６の内周面がベースプレート１５の外周表面上を摺動し、軸受け１６が回転する。これに伴って、軸受けハウジング１７及び取付部１７ａが回転し、その結果、整流板３３が矢視Ａ方向に回動して整流板３３を開けることができる。   When the current plate 33 is opened from the state of FIG. 2A, when the current plate 33 is rotated in the direction of arrow A, the base plate 15 does not rotate at first, and therefore the current plate 33 is not opened. When an input exceeding the acting force is applied, the inner peripheral surface of the bearing 16 slides on the outer peripheral surface of the base plate 15, and the bearing 16 rotates. Along with this, the bearing housing 17 and the mounting portion 17a rotate, and as a result, the rectifying plate 33 can be rotated in the direction of arrow A to open the rectifying plate 33.

ここで、扉側組立体２５においては、図１に示すように、ボルト２０、２１を用いてベースプレート１５の外周表面と軸受け１６の内周面との接触圧力を自在に調整することができるため、ベースプレート１５及び軸受け１６の表面材質やその表面状態により適宜ボルト２０、２１による締付力を調整し、摩擦摺動面へ与える圧力を変化させ、摺動に要する摩擦力を所望の大きさにすることができる。この際、軸受け１６の合わせ目にある隙間が縮小し、換言すれば軸受け１６が縮径できるため、締め付け部材により締め付けた力は、ベースプレート１５の外周表面との接触圧力として無駄なく作用する。   Here, in the door side assembly 25, as shown in FIG. 1, the contact pressure between the outer peripheral surface of the base plate 15 and the inner peripheral surface of the bearing 16 can be freely adjusted using bolts 20 and 21. The tightening force by the bolts 20 and 21 is appropriately adjusted according to the surface material of the base plate 15 and the bearing 16 and the surface state thereof, the pressure applied to the friction sliding surface is changed, and the frictional force required for sliding is set to a desired magnitude. can do. At this time, since the gap at the joint of the bearing 16 is reduced, in other words, the diameter of the bearing 16 can be reduced, the force tightened by the tightening member acts as a contact pressure with the outer peripheral surface of the base plate 15 without waste.

図２に戻り、整流板３３が所望の位置まで来ると、整流板３３への入力を弱めれば、ベースプレート１５及び軸受け１６からなる摩擦力付与機構により、軸受け１６の摺動が規制されるため、整流板３３の回動が停止し、整流板３３を所望の位置で停止させることができる。整流板３３が停止した状態では、ベースプレート１５と軸受け１６との間の摩擦力により整流板３３がさらに下降したり、上昇することなく停止した状態を維持することができる。   Returning to FIG. 2, when the rectifying plate 33 reaches a desired position, if the input to the rectifying plate 33 is weakened, the sliding of the bearing 16 is restricted by the frictional force applying mechanism including the base plate 15 and the bearing 16. The rotation of the current plate 33 is stopped, and the current plate 33 can be stopped at a desired position. In a state where the rectifying plate 33 is stopped, the rectifying plate 33 can be maintained in a stopped state without further lowering or rising due to the frictional force between the base plate 15 and the bearing 16.

次に、整流板３３を閉める場合には、図２（ｃ）において矢視Ｂ方向に整流板３３を回転させると、扉側組立体２５内の一方向クラッチの機能により、ベースプレート１５が矢視Ｂ方向に回転可能であるため（図３（ａ）参照）、僅かな力で整流板３３を回転させて閉めることができる。   Next, when closing the rectifying plate 33, when the rectifying plate 33 is rotated in the direction of arrow B in FIG. 2C, the base plate 15 is viewed in the direction of the arrow by the function of the one-way clutch in the door side assembly 25. Since it can rotate in the B direction (see FIG. 3A), the current plate 33 can be rotated and closed with a slight force.

また、この際、重力を利用し、整流板３３の自重により生じる下方への回転モーメントによる回転力と、ベースプレート１５及び軸受け１６の間の摩擦力との釣り合いが取れた位置で、ベースプレート１５及び軸受け１６の摩擦力付与機構部分の回転を停止させることができるため、予めこの摩擦力を所定の値に設定することで、摩擦力付与機構を介して回動する整流板３３の回動角度を所望の角度に定めることができる。換言すれば、整流板３３の開口具合を所望の位置に調整することができる。   At this time, the base plate 15 and the bearing are used at a position where the rotational force due to the downward rotational moment generated by the gravity of the current plate 33 is balanced with the frictional force between the base plate 15 and the bearing 16 using gravity. Since the rotation of the frictional force applying mechanism portion 16 can be stopped, the rotational angle of the rectifying plate 33 that rotates via the frictional force applying mechanism is set by setting the frictional force to a predetermined value in advance. Can be determined at any angle. In other words, the opening degree of the rectifying plate 33 can be adjusted to a desired position.

尚、図２に示すレンジフード３１においては、装置側組立体２４を本体３２に取り付けるとともに、扉側組立体２５を整流板３３に取り付けたが、装置側組立体２４と扉側組立体２５の位置を反転させ、扉側組立体２５を本体３２に取り付け、装置側組立体２４を整流板３３に取り付けてもよい。   In the range hood 31 shown in FIG. 2, the device-side assembly 24 is attached to the main body 32 and the door-side assembly 25 is attached to the rectifying plate 33, but the device-side assembly 24 and the door-side assembly 25 are connected. The position may be reversed, the door side assembly 25 may be attached to the main body 32, and the apparatus side assembly 24 may be attached to the rectifying plate 33.

この場合、軸受け１６が不動に固定される一方で、トルク軸６が回転可能な状態で取り付けられるため、図３（ｂ）に示すように、ベースプレート１５の内側でトルク軸６及びラチェット軸１０が回転し、また、そのときの回転許容方向は、歯車１０ｂ、爪部材１２及びばね１３から形成される一方向クラッチの機能により、矢視Ｂ’方向への一方向のみとなる。そして、矢視Ａ’方向への所定の作用力以上の入力が働くと、ベースプレート１５の外周表面が軸受け１６の内周面上を摺動し、トルク軸６、ラチェット軸１０及びベースプレート１５が一体となって矢視Ａ’方向に回転する。   In this case, while the bearing 16 is fixedly fixed, the torque shaft 6 is mounted in a rotatable state. Therefore, as shown in FIG. 3B, the torque shaft 6 and the ratchet shaft 10 are located inside the base plate 15. The rotation allowable direction at that time is only one direction in the direction of the arrow B ′ due to the function of the one-way clutch formed by the gear 10b, the claw member 12 and the spring 13. When an input greater than a predetermined acting force in the direction of arrow A ′ is applied, the outer peripheral surface of the base plate 15 slides on the inner peripheral surface of the bearing 16, and the torque shaft 6, the ratchet shaft 10 and the base plate 15 are integrated. And rotate in the direction of arrow A ′.

次に、上記開閉機構１における一方向クラッチの改変例について図４及び図５を参照しながら説明する。   Next, a modified example of the one-way clutch in the opening / closing mechanism 1 will be described with reference to FIGS.

図４は、改変例におけるベースプレート４５を示し、このベースプレート４５は、開閉機構１におけるベースプレート１５に相当するものである。このベースプレート４５は、円板状の基盤４５ａに、円形孔４５ｂと、３つの爪部材収容部４５ｃと、３つのばね収容部４５ｄとを備える。   FIG. 4 shows a base plate 45 in a modified example, and this base plate 45 corresponds to the base plate 15 in the opening / closing mechanism 1. The base plate 45 is provided with a circular hole 45b, three claw member accommodating portions 45c, and three spring accommodating portions 45d in a disk-shaped base 45a.

図５は、図４に示したベースプレート４５の円形孔４５ｂに、図１に示したラチェット軸１０の歯車１０ｂを収容するとともに、爪部材収容部４５ｃの各々に爪部材１２を、ばね収容部４５ｄの各々にばね１３を収容し、一方向クラッチが構成された状態を示す。   5 accommodates the gear 10b of the ratchet shaft 10 shown in FIG. 1 in the circular hole 45b of the base plate 45 shown in FIG. 4, and the claw member 12 in each of the claw member accommodating portions 45c and the spring accommodating portion 45d. The spring 13 is accommodated in each of these, and the one-way clutch is shown.

図５に示した一方向クラッチにおいて、歯車１０ｂは矢視Ｃ方向へは回転自在であるが、矢視Ｄ方向へは、ばね１３によって付勢された爪部材１２によって回転できないようになっている。   In the one-way clutch shown in FIG. 5, the gear 10 b is rotatable in the direction of arrow C, but cannot be rotated in the direction of arrow D by the claw member 12 biased by the spring 13. .

また、爪部材１２と歯車１０ｂの歯との位相差が歯のピッチ角を爪部材１２の数（３個）で除した大きさとなっており、そのため、３つの爪部材１２のすべてが同時に歯車１０ｂの歯と噛み合うことがなく、複数の爪部材１２によって、歯車１０ｂの歯のピッチ角を３で除した大きさ毎に、歯車１０ｂの回転を制止することができる。   Further, the phase difference between the claw member 12 and the teeth of the gear 10b has a size obtained by dividing the pitch angle of the teeth by the number (three) of the claw members 12, and therefore, all the three claw members 12 are gears simultaneously. The rotation of the gear 10b can be stopped for each size obtained by dividing the tooth pitch angle of the gear 10b by 3 by the plurality of claw members 12 without meshing with the teeth of 10b.

これにより、歯車１０ｂを一体化したラチェット軸１０を矢視Ｄ方向に回動させる際（図１のベースプレート１５及び軸受け１６間の摩擦力付与機構によってラチェット軸１０をベースプレート１５との関係における回転不能方向に回動させる際）に、ラチェット軸１０の固定位置を細かく調整することができ、より具体的には、摩擦力付与機構で付与する摩擦力が回動しようとする回転モーメントから生じる回転力以上で固定されている場合において、扉や図２に示した整流板３３の係止位置を歯車１０ｂと爪部材１２の歯合により細かく設定できる。   Accordingly, when the ratchet shaft 10 integrated with the gear 10b is rotated in the arrow D direction (the ratchet shaft 10 cannot be rotated in relation to the base plate 15 by the frictional force applying mechanism between the base plate 15 and the bearing 16 in FIG. 1). (When rotating in the direction), the fixing position of the ratchet shaft 10 can be finely adjusted, and more specifically, the rotational force generated from the rotational moment that the frictional force applied by the frictional force applying mechanism tries to rotate. In the case of being fixed as described above, the locking position of the door or the current plate 33 shown in FIG. 2 can be set finely by the engagement between the gear 10 b and the claw member 12.

以上、本発明の実施の形態を説明したが、本発明は、上記構成に限定されるものではなく、特許請求の範囲に記載された発明の範囲内で種々の変更が可能である。   The embodiment of the present invention has been described above, but the present invention is not limited to the above-described configuration, and various modifications can be made within the scope of the invention described in the claims.

例えば、上記実施の形態においては、軸受け１６を軸受けハウジング１７、１８（締め付け部材）を介してボルト２０、２１により締め付ける構成としたが、二つ割りされた締め付け部材を用い、二つ割りされた部材の一方の対峙面をヒンジ等により回転自在に固定し、他方の対峙面をボルト・ナットにより締め付ける構成として、軸受け１６とベースプレート１５の外周表面との接触圧力付与を行ってもよい。また、ベースプレート１５の外周表面から締め付け部材の外側表面に至るスリットを設けた構成とし、該スリットの隙間をボルト・ナットにより狭めることにより軸受け１６とベースプレート１５の外周表面との接触圧力付与を行ってもよい。   For example, in the above-described embodiment, the bearing 16 is tightened by the bolts 20 and 21 via the bearing housings 17 and 18 (clamping members), but one of the two divided members is used by using the divided clamping member. As a configuration in which the facing surface is rotatably fixed by a hinge or the like and the other facing surface is fastened by a bolt and a nut, contact pressure between the bearing 16 and the outer peripheral surface of the base plate 15 may be applied. Further, a slit is provided from the outer peripheral surface of the base plate 15 to the outer surface of the fastening member, and contact pressure is applied between the bearing 16 and the outer peripheral surface of the base plate 15 by narrowing the gap between the slits with bolts and nuts. Also good.

二つ割りされた締め付け部材を用い、二つ割りされた部材をボルト・ナットにより締め付ける構成とする場合は、二つ割りされた部材の対峙する二つの面のいずれか一方の位置と、また、二つ割りされ該二つ割部材の一方の対峙面をヒンジ等により回転自在に固定し、他方の対峙面をボルト・ナットにより締め付ける構成とする場合は他方の位置と、さらに、ベースプレート１５の外周表面から締め付け部材の外側表面に至るスリットを設けた構成とする場合は該スリットの位置と、前記筒状摩擦材に用いられる軸受け１６の合わせ目の位置が各々において略々同一であることが望ましく、このような構成をとれば、締め付け部材により加えられる締付力がさらに無駄なく作用させることができる。   When a split member is used and the split member is tightened with a bolt and a nut, the position of one of the two faces of the split member and the split member is divided into two. In the case where one opposing surface of the member is fixed rotatably by a hinge or the like and the other opposing surface is tightened by a bolt / nut, the other position and further, from the outer peripheral surface of the base plate 15 to the outer surface of the fastening member In the case of a configuration in which a slit is provided, it is desirable that the position of the slit and the position of the joint of the bearing 16 used in the cylindrical friction material are substantially the same in each case. Further, the tightening force applied by the tightening member can be applied without waste.

また、上記実施の形態においては、摩擦力付与機構に用いる筒状摩擦材を、合わせ目を有する軸受け（複層巻き軸受け）１６により構成したが、他の構成をとる筒状摩擦材であってもよく、締め付け部材により外周方向からの圧力が無駄なくベースプレート１５の外周表面に作用するように縮径可能な構成であればよい。具体的には、軸方向に複数のスリットを設けて縮径可能な構成とした筒状摩擦部材であっても、網目構造例えばエキスバンドメタルからなる部材を用いた筒状摩擦部材であってもよい。   Moreover, in the said embodiment, although the cylindrical friction material used for a friction-force provision mechanism was comprised by the bearing (multilayer winding bearing) 16 which has a joint, it is a cylindrical friction material which takes another structure, In other words, any configuration may be used as long as the pressure from the outer peripheral direction can be reduced by the fastening member so that it acts on the outer peripheral surface of the base plate 15 without waste. Specifically, it may be a cylindrical friction member having a configuration in which a plurality of slits are provided in the axial direction so that the diameter can be reduced, or a cylindrical friction member using a mesh structure, for example, a member made of an extended metal. Good.

さらに、摩擦力付与機構に用いる筒状摩擦材を締め付け部材により締め付ける構成に代えて、締め付け部材の内周表面自体を摩擦摺動に適した状態として用いることもできる。具体的には、締め付け部材の内周表面に摩擦摺動に適した樹脂等をコーティング又は焼付塗装する構成や、締め付け部材の内周表面に固体潤滑剤等の摩擦摺動に適した部材を埋め込む構成、さらに、締め付け部材自体を摩擦摺動に適した合金、焼結合金、樹脂からなる構成としてもよい。   Furthermore, instead of the configuration in which the cylindrical friction material used for the frictional force applying mechanism is tightened by the tightening member, the inner peripheral surface itself of the tightening member can be used as a state suitable for frictional sliding. Specifically, the inner peripheral surface of the fastening member is coated or baked with a resin suitable for friction sliding, or the inner peripheral surface of the fastening member is embedded with a member suitable for friction sliding such as a solid lubricant. Further, the fastening member itself may be made of an alloy suitable for frictional sliding, a sintered alloy, or a resin.

１ 開閉機構
２ 第１ブラケット
２ａ 取付部
２ｂ 軸受け
２ｃ 挿通孔
３ ボルト
４ ナット
６ トルク軸
６ａ 大径部
６ｂ 小径部
６ｃ 挿通孔
８ カバープレート
８ａ 基部
８ｂ 開口部
８ｃ スリット
８ｄ スリット
１０ ラチェット軸
１０ａ 円筒部
１０ｂ 歯車
１２ 爪部材
１２ａ 基部
１２ｂ 爪部
１３ ばね
１５ ベースプレート
１５ａ 基部
１５ｂ 円形孔
１５ｃ 爪部材収容部
１５ｄ ばね収容部
１６ 軸受け
１７ 軸受けハウジング
１７ａ 取付部
１７ｂ 立設部
１７ｃ 貫通孔
１７ｄ スリット
１８ 軸受けハウジング
１８ａ 本体
１８ｂ スリット
１８ｃ 挿通孔
１９ 開口部
２０ ボルト
２１ ボルト
２２ 第２ブラケット
２２ａ 基部
２２ｂ 開口部
２２ｃ 係止爪
２２ｄ 係止爪
２４ 装置側組立体
２５ 扉側組立体
３１ レンジフード
３２ 本体
３３ 整流板
３４ 排気ダクト
４５ ベースプレート
４５ａ 基盤
４５ｂ 円形孔
４５ｃ 爪部材収容部
４５ｄ ばね収容部 DESCRIPTION OF SYMBOLS 1 Opening / closing mechanism 2 1st bracket 2a Mounting part 2b Bearing 2c Insertion hole 3 Bolt 4 Nut 6 Torque shaft 6a Large diameter part 6b Small diameter part 6c Insertion hole 8 Cover plate 8a Base part 8b Opening part 8c Slit 8d Slit 10 Ratchet shaft 10a Cylindrical part 10b Gear 12 Claw member 12a Base portion 12b Claw portion 13 Spring 15 Base plate 15a Base portion 15b Circular hole 15c Claw member housing portion 15d Spring housing portion 16 Bearing 17 Bearing housing 17a Mounting portion 17b Standing portion 17c Through hole 17d Slit 18 Bearing housing 18a Main body 18b Slit 18c Insertion hole 19 Opening 20 Bolt 21 Bolt 22 Second bracket 22a Base 22b Opening 22c Locking claw 22d Locking claw 24 Device side assembly 25 Door side assembly 31 Range hood 32 Main body 33 Rectifier plate 34 Exhaust duct 45 Base plate 45a Base 45b Circular hole 45c Claw member accommodating portion 45d Spring accommodating portion

Claims (5)

軸の外周面全周に設けられる歯車と、各々が弾性部材で付勢された複数の爪部材とからなり、該複数の爪部材によって、前記歯車の歯をピッチ角を該爪部材の数で除した大きさ毎に該歯車の回転を制止することにより、該軸の軸線回りの一方向の回転のみを許容する一方向クラッチと、
該一方向クラッチの円筒状外周面の全面と円筒状内周面の全面で接するように配置された筒状摩擦材と、
前記筒状摩擦材の円筒状内周面と前記一方向クラッチの円筒状外周面との接触圧力を自在に調整する締め付け部材とを備え、
前記軸に、該軸の回転不能な方向に所定以上の力が作用したとき、又は前記一方向クラッチに、前記軸を該軸の回転不能な方向に回転させようとする所定以上の力が作用したときに、前記一方向クラッチの円筒状外周面及び前記筒状摩擦材の円筒状内周面の一方が他方の面上を摺動し、前記一方向クラッチ及び筒状摩擦材の一方が他方に対して相対的に回転することを特徴とする一方向回転ダンパ。 A gear provided on the entire circumference of the outer peripheral surface of the shaft and a plurality of claw members each urged by an elastic member, and by means of the plurality of claw members, the pitch angle of the gear teeth is determined by the number of claw members. by arresting rotation of the gear in each divided by size, and a one-way clutch to permit only rotation in one direction about the axis of said shaft,
A cylinder-shaped friction material disposed in contact with the entire surface of the entire surface and the cylindrical inner peripheral surface of the cylindrical outer peripheral surface of the one-way clutch,
A clamping member that freely adjusts the contact pressure between the cylindrical inner peripheral surface of the cylindrical friction material and the cylindrical outer peripheral surface of the one-way clutch ;
When a predetermined force is applied to the shaft in a direction in which the shaft cannot rotate, or a predetermined force is applied to the one-way clutch to rotate the shaft in a direction in which the shaft cannot rotate. When one of the cylindrical outer peripheral surface of the one-way clutch and the cylindrical inner peripheral surface of the cylindrical friction material slides on the other surface, one of the one-way clutch and the cylindrical friction material is the other. One-way rotating damper characterized by rotating relative to 前記筒状摩擦材は、金属製の裏金と、該裏金の表面に形成された多孔質青銅焼結層と、該多孔質青銅焼結層の孔隙及び表面に充填被覆された合成樹脂組成物のすべり層とからなり、該すべり層を内側にして円筒状に捲回された複層巻き軸受けであることを特徴とする請求項１に記載の一方向回転ダンパ。 The cylindrical friction material is made of a metal back metal, a porous bronze sintered layer formed on the surface of the back metal, a pore of the porous bronze sintered layer, and a synthetic resin composition filled and coated on the surface. The unidirectional rotating damper according to claim 1, wherein the unidirectional rotating damper is a multi-layer wound bearing which is formed of a slip layer and wound in a cylindrical shape with the slip layer inside. 請求項１又は２に記載の一方向回転ダンパを備え、前記軸に連結された第１の部材と、該一方向回転ダンパに連結された第２の部材との間でヒンジ機能を発揮させることを特徴とするヒンジ機構。 A unidirectional rotating damper according to claim 1 or 2 , wherein the first member connected to the shaft and a second member connected to the unidirectional rotating damper exhibit a hinge function. A hinge mechanism characterized by 請求項３に記載のヒンジ機構を備え、前記第１及び第２の部材のいずれか一方が開閉対象物への取付部を備えることを特徴とする開閉機構。 An opening / closing mechanism comprising the hinge mechanism according to claim 3 , wherein any one of the first and second members includes an attachment portion to an object to be opened / closed. 請求項４に記載の開閉機構を備え、前記開閉対象物が整流板であることを特徴とするレンジフード。 A range hood comprising the opening / closing mechanism according to claim 4 , wherein the opening / closing object is a current plate.
JP2009150462A 2009-06-25 2009-06-25 Unidirectional rotating damper and hinge mechanism, opening / closing mechanism and range hood provided with the damper Expired - Fee Related JP5415164B2 (en)

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