WO2019074063A1

WO2019074063A1 - Damper

Info

Publication number: WO2019074063A1
Application number: PCT/JP2018/037939
Authority: WO
Inventors: 亮平金子; 浩太郎宮田
Original assignee: オイレス工業株式会社
Priority date: 2017-10-13
Filing date: 2018-10-11
Publication date: 2019-04-18
Also published as: JP6918674B2; JP2019074125A

Abstract

The purpose of the present invention is to provide a damper with which a predetermined friction force can be obtained irrespective of a mounting location. The damper 10 includes a linearly extending slide member 11 and a housing unit 20 in which the slide member 11 is housed. The housing unit 20 is provided with a friction generation mechanism 30 which generates friction force between the friction generate mechanism 30 and the slide member 11. The friction generation mechanism 30 is provided with a plurality of abutment members 32 abutting against an outer surface 17 of the slide member 11, and a plurality of urging elements 33 which are provided in the housing unit 20, and by means of which urging force is caused to act on each of the plurality of abutment members 32 toward the axis of the slide member 11, thereby causing each of the plurality of abutment members 32 to be pressed onto the slide member 11. The plurality of abutment members 32 and the plurality of urging elements 33 are arranged such that, in a lateral cross section of the slide member 11, the inner product of the vectors of the urging force acting on each of the plurality of abutment members 32 from each of at least a pair of urging elements 33 among the plurality of urging elements 33 becomes zero or negative.

Description

ダンパdamper

　本発明は、乗り物などに加わる衝撃を緩和するダンパに関する。 The present invention relates to a damper that mitigates an impact applied to a vehicle or the like.

　従来、飛行機などの乗り物には、着地時などに受ける衝撃を緩和するために、ダンパが備えられている。ダンパには、オイルによる抵抗力を利用したオイルダンパや、部材同士の摩擦力を利用した摩擦ダンパなどがあるが、オイルを取り扱うことができないような場所では摩擦ダンパが使用されることがある。 Conventionally, vehicles such as airplanes are provided with dampers in order to reduce the impact received at the time of landing and the like. The dampers include an oil damper utilizing resistance by oil and a friction damper utilizing frictional force between members, but a friction damper may be used in a place where oil can not be handled.

　このような摩擦ダンパとして、摺動部材と、摺動部材を収納する収納部と、摺動部材との間に摩擦力を発生させる摩擦発生機構を備えた摩擦ダンパが知られている（例えば、特許文献１参照）。 As such a friction damper, there is known a friction damper provided with a friction generating mechanism for generating a frictional force between a sliding member, a housing portion for housing the sliding member, and the sliding member (for example, Patent Document 1).

　特許文献１の摩擦ダンパは、板状の摺動部材と、前記摺動部材を収納する四角筒状の収納部とを備え、収納部には、摺動部材との間に摩擦力を発生させる摩擦発生機構が備えられている。摩擦発生機構は、板状の摺動部材の表面および裏面にそれぞれ当接する複数の摩擦部材と、収納部の内側に設けられ複数の摩擦部材のそれぞれを摺動部材に押し付ける複数の付勢部材と、摩擦力を調整する調整手段とを備えている。 The friction damper of Patent Document 1 includes a plate-like sliding member and a rectangular tubular housing portion for housing the sliding member, and the housing portion generates a frictional force with the sliding member. A friction generating mechanism is provided. The friction generating mechanism includes: a plurality of friction members respectively contacting the front and back surfaces of the plate-like sliding member; and a plurality of biasing members provided inside the housing and pressing the plurality of friction members against the sliding member. , And adjusting means for adjusting the frictional force.

　調整手段は、摺動部材の表面側の付勢部材に対向して収納部に形成されたねじ孔と、収納部の外側からねじ孔にねじ込むことで摩擦部材を摺動部材に対して垂直方向に押し付けるボルトとを備えており、ボルトのねじ込み量を調整することで、摩擦部材を摺動部材に対して垂直方向に押し付ける付勢力によって作用する摩擦力が調整される。摩擦ダンパの両端を結ぶ直線に対して真っすぐに衝撃力が入力された場合に、調整された付勢力が作用し、所定の摩擦力が発生する。 The adjusting means is screwed into the screw hole formed in the storage section so as to face the biasing member on the surface side of the slide member, and from the outside of the storage section to the screw hole by perpendicularly screwing the friction member to the slide member By adjusting the screwing amount of the bolt, the frictional force acting by the biasing force that presses the friction member in the direction perpendicular to the sliding member is adjusted. When an impact force is input straight to a straight line connecting both ends of the friction damper, the adjusted biasing force acts to generate a predetermined friction force.

特開２００４－３５３８１３号公報Japanese Patent Application Laid-Open No. 2004-353813

　ところで、乗り物への衝撃力が摩擦ダンパに入力される際、摩擦ダンパの取付場所によって、摩擦ダンパの両端部を結ぶ直線に対して衝撃力が真っすぐに入力されずに傾いて入力されることがある。 By the way, when the impact force to the vehicle is input to the friction damper, the impact force may be input without being directly input to the straight line connecting the both ends of the friction damper depending on the mounting location of the friction damper. is there.

　しかしながら、上記特許文献１の摩擦ダンパによれば、調整手段が摺動部材の表面側にのみに配置されており、一方向からしか付勢力を調整できないため、衝撃力が異なった傾きで入力される場合に、所定の摩擦力を得ることが難しい。
　本発明の目的は、かかる従来技術の課題に鑑み、取付場所によらず所定の摩擦力を得ることができるダンパを提供することにある。 However, according to the friction damper of Patent Document 1, the adjusting means is disposed only on the surface side of the sliding member, and the biasing force can be adjusted only from one direction, so the impact force is input with a different inclination. In such cases, it is difficult to obtain a predetermined frictional force.
An object of the present invention is to provide a damper capable of obtaining a predetermined frictional force regardless of the mounting location in view of the problems of the prior art.

　［１］本発明の第１態様としてのダンパは、
　直線状に延びる摺動部材と、前記摺動部材を収納する収納部とを有し、前記収納部に前記摺動部材との間に摩擦力を発生させる摩擦発生機構を備えているダンパであって、
　前記摩擦発生機構は、前記摺動部材の外側面に当接する複数の当接部材と、前記収納部に設けられ前記複数の当接部材のそれぞれに前記摺動部材の軸線に向かって付勢力を作用させることで前記複数の当接部材のそれぞれを前記摺動部材に押し付ける複数の付勢要素とを備え、
　前記摺動部材の横断面において、前記複数の付勢要素のうち少なくとも一対の付勢要素のそれぞれから前記複数の当接部材のそれぞれに作用する前記付勢力のベクトルの内積が０または負になるように、前記複数の当接部材と前記複数の付勢要素とが配置されていることを特徴とする。 [1] A damper as a first aspect of the present invention is
A damper comprising: a linearly extending sliding member; and a housing portion for housing the sliding member, wherein the housing portion is provided with a friction generating mechanism for generating a frictional force between the housing and the sliding member. ,
The friction generating mechanism applies a biasing force toward the axis of the sliding member to each of the plurality of abutting members that abut the outer surface of the sliding member, and the plurality of abutting members provided in the storage portion. And a plurality of biasing elements for pressing each of the plurality of contact members against the sliding member by acting.
In the cross section of the sliding member, the inner product of the vector of the biasing force acting on each of the plurality of abutment members from each of at least a pair of the plurality of biasing elements becomes 0 or negative. Thus, the plurality of contact members and the plurality of biasing elements are disposed.

　当該構成のダンパによれば、ダンパに衝撃力が入力される際、摺動部材が収納部に収納されて、摩擦発生機構によって摺動部材との間に摩擦力が発生する。摩擦発生機構は、摺動部材の外側面に当接する複数の当接部材のそれぞれを、収納部に設けられた複数の付勢要素で摺動部材に押し付けて付勢力を作用させることで、複数の方向から当接部材と摺動部材の間に摩擦力を発生させることができる。さらに、複数の当接部材と複数の付勢要素とは、摺動部材の横断面において、少なくとも一対の付勢要素のそれぞれから複数の当接部材のそれぞれに作用する付勢力のベクトルの内積が０または負になるように、配置されているので、一方向のみだけではなく、いずれの方向に対しても付勢力を作用させることができる。 According to the damper of this configuration, when an impact force is input to the damper, the sliding member is housed in the housing portion, and a frictional force is generated between the sliding member and the sliding member. The friction generating mechanism causes the plurality of contact members in contact with the outer surface of the slide member to be pressed by the plurality of biasing elements provided in the storage unit against the slide member to apply a plurality of biasing forces. The frictional force can be generated between the contact member and the sliding member from the direction of (1). Furthermore, the plurality of abutment members and the plurality of biasing elements have an inner product of vectors of biasing forces acting on each of the plurality of abutment members from each of at least a pair of biasing elements in the cross section of the sliding member Since the arrangement is made to be 0 or negative, the biasing force can be applied not only in one direction but also in any direction.

　このため、乗り物への衝撃力がダンパに入力される際に、ダンパの両端部を結ぶ直線に対して衝撃力がいずれの方向に傾いて入力された場合であっても、摺動部材の横断面において、入力が逃げて摩擦力が小さくなる位置での付勢要素の付勢力を大きくすることで摩擦力を大きくし、摩擦発生機構全体として所定の摩擦力にすることができる。結果、ダンパの取付場所によらず所定の摩擦力に調整することができる。 Therefore, when the impact force to the vehicle is input to the damper, even if the impact force is input in any direction with respect to the straight line connecting both ends of the damper, the crossing of the sliding member is performed. In terms of surface, by increasing the biasing force of the biasing element at a position where the input escapes and the frictional force is reduced, the frictional force can be increased, and the entire friction generating mechanism can be made to have a predetermined frictional force. As a result, it can adjust to predetermined | prescribed friction force irrespective of the attachment location of a damper.

　［２］また、本発明のダンパにおいて、
　前記複数の付勢要素および前記複数の当接部材のそれぞれは、前記摺動部材の横断面において、前記軸線の周りに回転対称性を有するように配置されていることが好ましい。 [2] Moreover, in the damper of the present invention,
Preferably, each of the plurality of biasing elements and the plurality of abutment members is arranged to have rotational symmetry around the axis in the cross section of the sliding member.

　当該構成のダンパによれば、付勢要素が軸線のまわりに回転対称性を有するように配置されているので、衝撃力の入力がいずれの方向に傾いても、付勢力を大きくしたい位置または付勢力を大きくしたい位置に近い位置に付勢要素が配置され、付勢要素の付勢力の調整を行い易くすることができる。 According to the damper of this configuration, since the biasing element is arranged to have rotational symmetry around the axis, the position or force at which the biasing force is desired to be increased regardless of the direction of the impact force input. The biasing element is disposed at a position close to the position where the force is desired to be increased, so that the biasing force of the biasing element can be easily adjusted.

　［３］また、本発明のダンパにおいて、
　前記複数の付勢要素および前記複数の当接部材のそれぞれは、前記摺動部材の長手方向について同じ位置に配置されていることが好ましい。 [3] Also, in the damper of the present invention,
It is preferable that each of the plurality of biasing elements and the plurality of contact members be disposed at the same position in the longitudinal direction of the sliding member.

　当該構成のダンパによれば、付勢要素の付勢力の調整を、摺動部材の長手方向における付勢力の作用の違いを考慮せずに、摺動部材の長手方向の同じ位置のみで容易に行うことができる。 According to the damper of the configuration, the adjustment of the biasing force of the biasing element can be easily performed only at the same position in the longitudinal direction of the sliding member without considering the difference in the action of the biasing force in the longitudinal direction of the sliding member. It can be carried out.

　［４］また、本発明のダンパにおいて、
　前記摺動部材は筒状であり、
　前記収納部の内側には、前記収納部の軸線に沿って延び少なくとも前記摩擦発生機構が配置される前記収納部の内側に位置するとともに前記摺動部材の内側面を摺動可能に支持する内筒が備えられていることが好ましい。 [4] Moreover, in the damper of the present invention,
The sliding member is cylindrical,
The inside of the storage portion is disposed along the axis of the storage portion, at least located inside the storage portion in which the friction generating mechanism is disposed, and slidably supports the inner surface of the sliding member. Preferably a cylinder is provided.

　当該構成のダンパによれば、付勢要素の付勢力を受ける摺動部材を内側から内筒で摺動可能に支持するので、摺動部材が内側に逃げずに大きな付勢力でも受けるようにすることができる。 According to the damper of this configuration, the sliding member receiving the biasing force of the biasing element is slidably supported by the inner cylinder from the inside, so that the sliding member can receive even a large biasing force without escaping inward. be able to.

　［５］また、本発明のダンパにおいて、
　前記収納部は、筒状または有底筒状のシリンダであり、
　前記摺動部材は、角筒状のピストンロッドであり、
　前記摩擦発生機構は、前記角筒状の前記外側面を構成する複数の平面のそれぞれに対して配置されていることが好ましい。 [5] In the damper of the present invention,
The storage unit is a cylindrical or bottomed cylindrical cylinder,
The sliding member is a square cylindrical piston rod,
It is preferable that the friction generating mechanism be disposed for each of a plurality of planes forming the outer surface of the rectangular tube.

　当該構成のダンパによれば、収納部は、筒状または有底筒状のシリンダであり、摺動部材は、角筒状のピストンロッドであるので、ピストンロッドおよびシリンダを容易に構成することができる。さらに、摩擦発生機構は、角筒状の外側面を構成する複数の平面のそれぞれに対して配置されているので、外側面に摩擦発生機構の当接部材が当接する面積を確保しやすくできる。 According to the damper of the configuration, the storage portion is a cylindrical or bottomed cylindrical cylinder, and the sliding member is an angular cylindrical piston rod, so the piston rod and the cylinder can be easily configured. it can. Furthermore, since the friction generating mechanism is disposed for each of the plurality of planes forming the rectangular cylindrical outer surface, it is easy to secure the area in which the contact member of the friction generating mechanism abuts on the outer surface.

　［６］また、本発明のダンパにおいて、
　前記収納部は、筒状または有底筒状のシリンダであり、
　前記摺動部材は、角柱状のピストンロッドであり、
　前記摩擦発生機構は、前記角柱状の前記外側面を構成する複数の平面のそれぞれに対して配置されていることが好ましい。 [6] Moreover, in the damper of the present invention,
The storage unit is a cylindrical or bottomed cylindrical cylinder,
The sliding member is a prismatic piston rod,
It is preferable that the friction generating mechanism is disposed for each of a plurality of planes forming the outer surface of the prismatic shape.

　当該構成のダンパによれば、収納部は、筒状または有底筒状のシリンダであり、摺動部材は、角柱状のピストンロッドであるので、ピストンロッドおよびシリンダを容易に構成することができる。さらに、摩擦発生機構は、角柱状の外側面を構成する複数の平面のそれぞれに対して配置されているので、外側面に摩擦発生機構の当接部材が当接する面積を確保しやすくできる。 According to the damper of the configuration, the storage portion is a cylindrical or bottomed cylindrical cylinder, and the sliding member is a prismatic piston rod, so the piston rod and the cylinder can be easily configured. . Furthermore, since the friction generating mechanism is disposed for each of the plurality of planes forming the prismatic outer surface, it is possible to easily secure the area in which the contact member of the friction generating mechanism abuts on the outer surface.

　［７］また、本発明のダンパにおいて、
　前記摩擦発生機構は、前記収納部の前記摺動部材挿入側の端部に設けられており、
　前記収納部の表面から径方向外側に突出する台座部と、
　前記台座部の外端面から内側面に貫通し、前記当接部材が摺動可能に設けられるとともに前記外端面側に前記付勢要素が設けられる貫通孔とを備えていることが好ましい。 [7] Moreover, in the damper of the present invention,
The friction generating mechanism is provided at an end of the storage portion on the sliding member insertion side,
A pedestal projecting radially outward from the surface of the housing;
It is preferable that the outer end surface of the pedestal portion is penetrated from the outer end surface to the inner side surface, and the contact member is provided slidably and a through hole in which the biasing element is provided on the outer end surface side.

　当該構成のダンパによれば、摩擦発生機構を、収納部の摺動部材挿入側の端部に設けることで、限られた摺動部材のストロークで、摩擦を発生させるストロークを最大限にすることができる。さらに、収納部の表面から径方向外側に突出する台座部に、外端面から内摺面に貫通する貫通孔を形成し、前記貫通孔に当接部材を設けて外端面側に付勢要素を設けるので構成を簡単にすることができる。 According to the damper of the configuration, by providing the friction generating mechanism at the end on the sliding member insertion side of the storage unit, the stroke for generating friction is maximized with the limited stroke of the sliding member. Can. Furthermore, a through hole penetrating from the outer end surface to the inner sliding surface is formed in a pedestal projecting radially outward from the surface of the storage portion, and a contact member is provided in the through hole to urge the biasing element to the outer end surface Since the provision is made, the configuration can be simplified.

　［８］また、本発明のダンパにおいて、
　前記付勢要素は、前記貫通孔に設けられた雌ねじ部と、前記雌ねじ部に螺合される雄ねじ部と、前記雄ねじ部と前記当接部材との間で前記貫通孔に収納されるとともに圧縮されることで反発力が大きくなる第１弾性部材であることが好ましい。 [8] In the damper of the present invention,
The biasing element is accommodated in the through hole between an internal thread portion provided in the through hole, an external thread portion screwed to the internal thread portion, the external thread portion and the contact member, and the compression element is compressed. It is preferable that it is a 1st elastic member to which a repulsive force becomes large by being done.

　当該構成のダンパによれば、貫通孔に設けた雌ねじ部に雄ねじ部を螺合し、雄ねじ部によって第１弾性部材を圧縮し、当接部材を付勢するので、付勢力の調整を容易に行うことができる。 According to the damper of the configuration, the male screw portion is screwed into the female screw portion provided in the through hole, and the first elastic member is compressed by the male screw portion to bias the contact member. It can be carried out.

　［９］また、本発明のダンパにおいて、
　前記収納部の内側に、ばね座が設けられ、
　前記ばね座に、前記摺動部材を伸び方向に付勢する第２弾性部材が設けられていることが好ましい。 [9] Moreover, in the damper of the present invention,
A spring seat is provided inside the storage unit,
Preferably, the spring seat is provided with a second elastic member that biases the sliding member in the extending direction.

　当該構成のダンパによれば、摺動部材が第２弾性部材によっても付勢されるので、より大きな衝撃力に対応することができる。 According to the damper of this configuration, since the sliding member is also biased by the second elastic member, it is possible to cope with a larger impact force.

　［１０］本発明の第２態様のダンパは、
　直線状に延びる摺動部材と、前記摺動部材を収納する収納部とを有し、前記摺動部材に前記収納部との間に摩擦力を発生させる摩擦発生機構を備えているダンパであって、
　前記摩擦発生機構は、前記収納部の内側面に当接する複数の当接部材と、前記摺動部材に設けられ前記複数の当接部材のそれぞれに前記内側面に向かって付勢力を作用させることで前記複数の当接部材のそれぞれを前記内側面に押し付ける付勢要素とを備え、
　前記摺動部材の横断面において、前記複数の付勢要素のうち少なくとも一対の付勢要素のそれぞれから前記複数の当接部材のそれぞれに作用する前記付勢力のベクトルの内積が０または負になるように、前記複数の当接部材と前記複数の付勢要素とが配置されていることが好ましい。 [10] The damper of the second aspect of the present invention is
A damper comprising: a linearly extending sliding member; and a housing portion for housing the sliding member, the friction member including a friction generating mechanism for causing the sliding member to generate a frictional force with the housing portion. ,
The friction generating mechanism applies a biasing force to each of the plurality of contact members in contact with the inner side surface of the storage portion and the plurality of contact members provided on the sliding member toward the inner surface. And a biasing element for pressing each of the plurality of abutment members against the inner surface,
In the cross section of the sliding member, the inner product of the vector of the biasing force acting on each of the plurality of abutment members from each of at least a pair of the plurality of biasing elements becomes 0 or negative. Preferably, the plurality of abutment members and the plurality of biasing elements are arranged.

　当該構成のダンパによれば、ダンパに衝撃力が入力される際、摺動部材が収納部に収納されて、摩擦発生機構によって摺動部材との間に摩擦力が発生する。摩擦発生機構は、収納部の内側面に当接する複数の当接部材のそれぞれを、摺動部材に設けられた複数の付勢要素で収納部の内側面に押し付けて付勢力を作用させることで、複数の方向から当接部材と内側面の間に摩擦力を発生させることができる。さらに、複数の当接部材と複数の付勢要素とは、摺動部材の横断面において、少なくとも一対の付勢要素のそれぞれから複数の当接部材のそれぞれに作用する付勢力のベクトルの内積が０または負になるように、配置されているので、一方向のみだけではなく、いずれの方向に対しても付勢力を作用させることができる。 According to the damper of this configuration, when an impact force is input to the damper, the sliding member is housed in the housing portion, and a frictional force is generated between the sliding member and the sliding member. The friction generating mechanism causes the plurality of contact members in contact with the inner side surface of the storage unit to be pressed against the inner side surface of the storage unit by a plurality of biasing elements provided on the sliding member to apply an urging force. The frictional force can be generated between the contact member and the inner surface from a plurality of directions. Furthermore, the plurality of abutment members and the plurality of biasing elements have an inner product of vectors of biasing forces acting on each of the plurality of abutment members from each of at least a pair of biasing elements in the cross section of the sliding member Since the arrangement is made to be 0 or negative, the biasing force can be applied not only in one direction but also in any direction.

　このため、乗り物への衝撃力がダンパに入力される際に、ダンパの両端部を結ぶ直線に対して衝撃力がいずれの方向に傾いて入力された場合であっても、摺動部材の横断面においてそのままであれば摩擦力が小さくなるような位置で、付勢要素の付勢力を大きくすることで摩擦力を大きくし、摩擦発生機構全体として所定の摩擦力にすることができる。結果、ダンパの取付場所によらず所定の摩擦力に調整することができる。 Therefore, when the impact force to the vehicle is input to the damper, even if the impact force is input in any direction with respect to the straight line connecting both ends of the damper, the crossing of the sliding member is performed. The frictional force can be increased by increasing the biasing force of the biasing element at a position where the frictional force is reduced as it is, and the predetermined frictional force can be obtained as a whole of the friction generating mechanism. As a result, it can adjust to predetermined | prescribed friction force irrespective of the attachment location of a damper.

本発明の第１実施形態に係るダンパを取り付けた乗り物を示す平面図。BRIEF DESCRIPTION OF THE DRAWINGS The top view which shows the vehicle which attached the damper which concerns on 1st Embodiment of this invention. 図１のダンパを示す斜視図。The perspective view which shows the damper of FIG. 図２の摺動部材が収納部に収納されてダンパが縮んだ状態を示す正面図。The front view which shows the state which the sliding member of FIG. 2 was accommodated in the accommodating part, and the damper contracted. 図２の摺動部材が収納部から出てダンパが伸びた状態の作用図。The operation view in the state where the sliding member of Drawing 2 came out from the stowage, and the damper expanded. 図３ＢのＩＶ－ＩＶ線に沿った断面図。Sectional drawing along the IV-IV line of FIG. 3B. 図３ＢのＶ－Ｖ線に沿った断面図。Sectional drawing along the VV line of FIG. 3B. 図４のダンパの要部拡大図。The principal part enlarged view of the damper of FIG. 本発明の第１実施形態に係るダンパの衝撃力が加わった際の作用図。The effect | action figure at the time of the impact force of the damper which concerns on 1st Embodiment of this invention being added. ダンパが縮んだ際の作用図である。It is an action view when a damper is shrunk. 摩擦発生機構を調整する前の図７Ａのダンパの入力状態における断面図。Sectional drawing in the input state of the damper of FIG. 7A before adjusting a friction generation | occurrence | production mechanism. 摩擦発生機構を調整した後の図７Ａのダンパの入力状態における作用図。The action view in the input state of the damper of Drawing 7A after adjusting a friction generating mechanism. 図５の別態様のダンパを示す断面図である。It is sectional drawing which shows the damper of another aspect of FIG. 図５の更なる別態様のダンパを示す断面図である。It is sectional drawing which shows the damper of the further another aspect of FIG.

　（第１実施形態） First Embodiment

　以下、図面を用いて本発明の第１実施形態を説明する。図１に示すように、本発明の第１実施形態に係るダンパ１０は、例えば遊園地のアトラクション等に使用される乗り物１に備えられている。乗り物１には、内部にダンパ１０を介して板状の基部２が備えられている。詳細には、乗り物１は、外側を構成する本体部３と、本体部３に設けられダンパ１０の一端を揺動可能に支持する第１支持部４と、基部２に設けられダンパ１０の他端を揺動可能に支持する第２支持部５と、複数のダンパ１０に支持される基部２と、基部２に設けられ乗員を支持するシート部６とを備えている。 Hereinafter, a first embodiment of the present invention will be described using the drawings. As shown in FIG. 1, the damper 10 according to the first embodiment of the present invention is provided, for example, in a vehicle 1 used for an attraction of an amusement park. The vehicle 1 is provided with a plate-like base 2 via a damper 10 inside. In detail, the vehicle 1 is provided with a main body portion 3 constituting the outer side, a first support portion 4 provided on the main body portion 3 and swingably supporting one end of the damper 10, and the other members provided on the base 2 A second support 5 supports the end in a pivotable manner, a base 2 supported by a plurality of dampers 10, and a seat 6 provided on the base 2 for supporting an occupant.

　乗り物１は、急発進時や急停止時に衝撃力を受ける。この衝撃力は、ダンパ１０によって吸収される。なお、実施形態では、乗り物１を遊園地のアトラクション等で使用される乗り物１としたが、これに限定されず、乗り物１は、自動車、特殊車両、飛行機等、衝撃を吸収する必要があるものであれば他の乗り物１であっても差し支えない。 The vehicle 1 receives an impact force at the time of a sudden start or a sudden stop. This impact force is absorbed by the damper 10. In the embodiment, although the vehicle 1 is the vehicle 1 used in an attraction of an amusement park or the like, the vehicle 1 is not limited to this, and the vehicle 1 needs to absorb an impact, such as a car, a special vehicle, or an airplane. If it is, it may be another vehicle 1.

　次にダンパ１０の構成について説明する。図１および図２に示すように、ダンパ１０は、直線状に延びる摺動部材１１と、摺動部材１１を収納する収納部２０とを備え、収納部２０に摺動部材１１との間に摩擦力を発生させる摩擦発生機構３０を備えている。 Next, the configuration of the damper 10 will be described. As shown in FIGS. 1 and 2, the damper 10 includes a linearly extending sliding member 11 and a housing portion 20 for housing the sliding member 11, and the housing portion 20 is provided between the sliding member 11 and the housing 20. A friction generating mechanism 30 for generating a frictional force is provided.

　摺動部材１１は、角筒状のピストンロッドであり、端部には第１支持部４に取付けられる第１取付部１２が設けられている。第１取付部１２は、摺動部材１１の端部から摺動部材１１の軸方向に突出する板状の部材であり、その中心部に第１貫通孔１３が形成されている。第１支持部４に設けられた軸が第１貫通孔１３に通されることで、第１取付部１２が第１支持部４に支持される。 The sliding member 11 is a square cylindrical piston rod, and the first mounting portion 12 attached to the first support portion 4 is provided at an end portion. The first mounting portion 12 is a plate-like member that protrudes in the axial direction of the sliding member 11 from the end of the sliding member 11, and a first through hole 13 is formed in the central portion thereof. The shaft provided in the first support portion 4 is passed through the first through hole 13, whereby the first mounting portion 12 is supported by the first support portion 4.

　収納部２０は、有底筒状のシリンダであり、底部２１には第２支持部５に取付けられる第２取付部２２が設けられている。第２取付部２２は、底部２１から収納部２０の軸方向に突出する板状の部材であり、その中心部に第２貫通孔２３が形成されている。第２支持部５に設けられた軸が第２貫通孔２３に通されることで、第２取付部２２が第２支持部５に支持される。 The storage portion 20 is a cylindrical cylinder with a bottom, and the bottom portion 21 is provided with a second attachment portion 22 attached to the second support portion 5. The second attachment portion 22 is a plate-like member protruding in the axial direction of the storage portion 20 from the bottom portion 21, and a second through hole 23 is formed in the central portion thereof. The second mounting portion 22 is supported by the second support portion 5 by passing the shaft provided in the second support portion 5 through the second through hole 23.

　図４および図５に示すように、摩擦発生機構３０は、収納部２０の摺動部材１１挿入側の端部に設けられており、収納部２０の表面から径方向外側に突出する８つの台座部３１を備えている。摩擦発生機構３０を、収納部２０の摺動部材１１挿入側の端部に設けることで、限られた摺動部材１１のストロークで、摩擦を発生させるストロークを最大限にすることができる。さらに、収納部２０の表面から傾方向外側に突出する台座部３１に、外端面３４から内側面に貫通する貫通孔３５を形成し、貫通孔３５に当接部材３２を設けて外端面３４側に付勢要素３３を設けるので構成を簡単にすることができる。 As shown in FIGS. 4 and 5, the friction generating mechanism 30 is provided at an end of the storage portion 20 on the insertion side of the sliding member 11, and eight pedestals protruding radially outward from the surface of the storage portion 20. The unit 31 is provided. By providing the friction generating mechanism 30 at the end of the housing 20 on the slide member 11 insertion side, the stroke for generating friction can be maximized with the limited stroke of the slide member 11. Furthermore, a through hole 35 penetrating from the outer end surface 34 to the inner side surface is formed in the pedestal portion 31 protruding outward in the tilting direction from the surface of the storage portion 20, and the abutting member 32 is provided in the through hole 35 Since the biasing element 33 is provided to the structure, the configuration can be simplified.

　次にダンパ１０の摺動部材１１の状態について説明する。 Next, the state of the sliding member 11 of the damper 10 will be described.

　図３Ａは摺動部材１１が収納部２０に収納された状態であり、摺動部材１１の端部と収納部２０の端部が面一になっており、ダンパ１０が全体として最も縮んだ状態である。図３Ｂは摺動部材１１が収納部２０から最も出ており、ダンパ１０が全体として最も伸びた状態である。 FIG. 3A shows a state in which the sliding member 11 is stored in the storage portion 20, the end of the sliding member 11 and the end of the storage portion 20 are flush, and the damper 10 is the most shrunk as a whole. It is. In FIG. 3B, the sliding member 11 is the most out of the housing portion 20, and the damper 10 is the most extended state as a whole.

　次にダンパ１０の構成について詳細に説明する。 Next, the configuration of the damper 10 will be described in detail.

　図２、図４および図６に示すように、摺動部材１１は筒状であり、端部に蓋部１４が設けられている。摺動部材１１の内側には、蓋部１４から摺動部材１１の挿入側の端部近傍まで摺動部材１１の軸線に沿って第１の内筒１５が延びている。 As shown in FIG. 2, FIG. 4 and FIG. 6, the sliding member 11 is cylindrical, and a lid 14 is provided at the end. Inside the sliding member 11, a first inner cylinder 15 extends along the axis of the sliding member 11 from the lid 14 to the vicinity of the end on the insertion side of the sliding member 11.

　収納部２０は、筒状であり、端部に底部２１が設けられている。収納部２０の内側には、底部２１から収納部２０の開口端部近傍まで収納部２０の軸線に沿って第２の内筒２４が延びている。第２の内筒２４は、摺動部材１１の内側面１６を摺動可能に支持している。この第２の内筒２４の内側に、第１の内筒１５が摺動可能に挿入されている。 The storage unit 20 is cylindrical and has a bottom 21 at its end. Inside the storage portion 20, a second inner cylinder 24 extends along the axis of the storage portion 20 from the bottom portion 21 to the vicinity of the opening end of the storage portion 20. The second inner cylinder 24 slidably supports the inner side surface 16 of the sliding member 11. The first inner cylinder 15 is slidably inserted into the second inner cylinder 24.

　摺動部材１１の先端部の内側面１６には、第２の内筒２４を案内するガイド部１８が設けられている。第２の内筒２４の先端部の内側面２７には、第１の内筒１５を案内するガイド部２８が設けられている。 A guide portion 18 for guiding the second inner cylinder 24 is provided on the inner side surface 16 of the distal end portion of the sliding member 11. A guide portion 28 for guiding the first inner cylinder 15 is provided on the inner side surface 27 of the distal end portion of the second inner cylinder 24.

　付勢要素３３の付勢力を受ける摺動部材１１を内側から第２の内筒２４で摺動可能に支持するので、摺動部材１１が内側に逃げずに大きな付勢力でも受けるようにすることができる。 Since the sliding member 11 which receives the biasing force of the biasing element 33 is slidably supported by the second inner cylinder 24 from the inside, the sliding member 11 is also able to receive a large biasing force without being escaped inward. Can.

　収納部２０の内側に配置された第２の内筒２４の内側の底部２１にばね座２５が設けられている。ばね座２５には、第１の内筒１５に当接することで摺動部材１１を伸び方向に付勢する第２弾性部材２６が設けられている。この構成により、摺動部材１１が第２弾性部材２６によっても付勢されるので、より大きな衝撃力にも対応することができる。 A spring seat 25 is provided on the inner bottom portion 21 of the second inner cylinder 24 disposed inside the storage portion 20. The spring seat 25 is provided with a second elastic member 26 that biases the sliding member 11 in the extending direction by contacting the first inner cylinder 15. With this configuration, since the sliding member 11 is also biased by the second elastic member 26, it is possible to cope with a larger impact force.

　なお、実施形態では、第２の内筒２４は、底部２１から収納部２０の開口端部近傍まで延びるように形成されているが、これに限定されず、第２の内筒２４は収納部２０の軸線に沿って延び少なくとも摩擦発生機構３０が配置される収納部２０の内側に位置するとともに摺動部材１１の内側面１６を摺動可能に支持していればよい。また、底部２１は収納部２０の端部に設けたが、これに限定されず、第２の内筒２４を支持できれば底部２１は、収納部２０の長手方向の途中に設けても差し支えない。さらに実施形態では、摺動部材１１を角筒状としたが、これに限定されず、中実の角柱としてもよく、この場合は、収納部２０の内側から第２の内筒２４を取り除くことで摺動部材１１を収納部２０に収納することができ、構造を簡単にすることができる。 In the embodiment, the second inner cylinder 24 is formed so as to extend from the bottom 21 to the vicinity of the opening end of the storage unit 20. However, the present invention is not limited thereto. It is only necessary to extend along the axis of 20 and to at least be located inside the storage portion 20 where the friction generating mechanism 30 is disposed, and to slidably support the inner side surface 16 of the sliding member 11. The bottom 21 is provided at the end of the housing 20. However, the present invention is not limited to this. The bottom 21 may be provided midway in the longitudinal direction of the housing 20 as long as the second inner cylinder 24 can be supported. Further, in the embodiment, the sliding member 11 has a rectangular cylindrical shape, but is not limited to this, and may be a solid prism, in which case the second inner cylinder 24 is removed from the inside of the storage portion 20 Thus, the sliding member 11 can be stored in the storage portion 20, and the structure can be simplified.

　次に摩擦発生機構３０について説明する。 Next, the friction generation mechanism 30 will be described.

　図４から図６に示すように、摩擦発生機構３０は、摺動部材１１の角筒状の外側面１７を構成する複数の平面のそれぞれに対して配置されている。 As shown in FIGS. 4 to 6, the friction generating mechanism 30 is disposed for each of a plurality of planes constituting the rectangular cylindrical outer side surface 17 of the sliding member 11.

　摩擦発生機構３０は、摺動部材１１の外側面１７に当接する複数の当接部材３２と、収納部２０から突出する台座部３１に設けられ複数の当接部材３２のそれぞれに摺動部材１１の軸線に向かって付勢力を作用させることで複数の当接部材３２のそれぞれを摺動部材１１に押し付ける複数の付勢要素３３とを備えている。 The friction generating mechanism 30 is provided on a plurality of contact members 32 contacting the outer side surface 17 of the slide member 11 and a plurality of contact members 32 provided on the pedestal portion 31 projecting from the storage portion 20. And a plurality of biasing elements 33 for pressing each of the plurality of contact members 32 against the sliding member 11 by applying a biasing force toward the axis of the lens.

　複数の付勢要素３３および複数の当接部材３２のそれぞれは、摺動部材１１の長手方向について同じ位置に配置されている。このような構成にすることで、付勢要素３３の付勢力の調整を、摺動部材１１の長手方向における付勢力の作用の違いを考慮せずに、摺動部材１１の長手方向の同じ位置のみで容易に行うことができる。また、摩擦発生機構３０は、角柱状または角筒状の外側面１７を構成する複数の平面のそれぞれに対して配置されているので、外側面１７に摩擦発生機構３０の当接部材３２が当接する面積を確保しやすくできる。 Each of the plurality of biasing elements 33 and the plurality of abutment members 32 is disposed at the same position in the longitudinal direction of the sliding member 11. With such a configuration, the adjustment of the biasing force of the biasing element 33 can be performed at the same position in the longitudinal direction of the sliding member 11 without considering the difference in the action of the biasing force in the longitudinal direction of the sliding member 11 It can easily be done with Further, since the friction generating mechanism 30 is disposed for each of a plurality of planes forming the prismatic or rectangular outer surface 17, the contact member 32 of the friction generating mechanism 30 is in contact with the outer surface 17. It is easy to secure the contact area.

　なお、実施形態では、複数の付勢要素３３および複数の当接部材３２のそれぞれは、摺動部材１１の長手方向について同じ位置に配置したが、これに限定されず、複数の付勢要素３３および複数の当接部材３２のそれぞれを、摺動方向１１の長手方向にずらして配置してもよく、この場合は長手方向の位置の違いによる付勢力の作用の違いも考慮した摩擦力の調整が可能となる。 In the embodiment, each of the plurality of biasing elements 33 and the plurality of contact members 32 is disposed at the same position in the longitudinal direction of the sliding member 11, but the present invention is not limited thereto. And each of the plurality of contact members 32 may be arranged to be shifted in the longitudinal direction of the sliding direction 11, and in this case, the adjustment of the frictional force taking into account the difference in the action of the biasing force due to the difference in the longitudinal position Is possible.

　摺動部材１１の横断面において、複数の付勢要素３３のうち少なくとも一対の付勢要素３３のそれぞれから複数の当接部材３２のそれぞれに作用する付勢力のベクトルの内積が０または負になるように、複数の当接部材３２と複数の付勢要素３３とが配置されている。詳細には、複数の付勢要素３３および複数の当接部材３２のそれぞれは、摺動部材１１の横断面において、摺動部材１１の軸線の周りに回転対称性を有するように配置されている。 In the cross section of the sliding member 11, the inner product of the vector of biasing forces acting on each of the plurality of abutting members 32 from each of at least a pair of biasing elements 33 among the plurality of biasing elements 33 becomes 0 or negative. Thus, a plurality of abutment members 32 and a plurality of biasing elements 33 are arranged. Specifically, each of the plurality of biasing elements 33 and the plurality of abutment members 32 is arranged to have rotational symmetry around the axis of the sliding member 11 in the cross section of the sliding member 11 .

　具体例として、図５に示す３つの付勢要素３３を便宜上、付勢要素３３ａ、３３ｂ、３３ｃとして示し、付勢要素３３ａ、３３ｂ、３３ｃのそれぞれから３つの当接部材３２に作用する付勢力のベクトルを、ベクトルａ、ベクトルｂおよびベクトルｃのそれぞれとして説明する。 As a specific example, for the sake of convenience, the three biasing elements 33 shown in FIG. 5 are shown as biasing

elements

33a, 33b, 33c, and biasing forces acting on the three abutment members 32 from the

respective biasing elements

33a, 33b, 33c. Are described as vector a, vector b and vector c, respectively.

　一対の付勢要素３３ａおよび付勢要素３３ｂのそれぞれから２つの当接部材３２のそれぞれに作用するベクトルａおよびベクトルｂについて説明すると、ベクトルａとベクトルｂの成す角は９０°であり、ベクトルａとベクトルｂの内積は、｜ベクトルａ｜・｜ベクトルｂ｜ｃｏｓ９０°で示され、内積の値は０となる。 Describing the vectors a and b acting on the two abutment members 32 respectively from the pair of biasing

elements

33a and 33b, the angle between the vectors a and b is 90 °, and the vector a The inner product of and the vector b is represented by | vector a | · | vector b | cos 90 °, and the value of the inner product is 0.

　一対の付勢要素３３ａおよび付勢要素３３ｃのそれぞれから２つの当接部材３２のそれぞれに作用するベクトルａおよびベクトルｃについて説明すると、ベクトルａとベクトルｃの成す角は１８０°であり、ベクトルａとベクトルｃの内積は、｜ベクトルａ｜・｜ベクトルｃ｜ｃｏｓ１８０°で示され、内積の値は負となる。 Describing the vectors a and c acting on each of the two abutting members 32 from each of the pair of biasing

elements

33a and 33c, the angle between the vectors a and c is 180 °, and the vector a The inner product of and the vector c is represented by | vector a | · | vector c | cos 180 °, and the value of the inner product is negative.

　このように少なくとも一対の付勢要素３３のそれぞれから複数の当接部材３２のそれぞれに作用する付勢力のベクトルの成す角が９０°や１８０°でもよく、ベクトルの内積が０または負になる位置に付勢部材３３および当接部材３２がそれぞれ配置されていればよい。 Thus, the angle formed by the vectors of the biasing forces acting on each of the plurality of abutment members 32 from each of at least a pair of biasing elements 33 may be 90 ° or 180 °, and the position where the inner product of the vectors becomes 0 or negative The biasing member 33 and the abutting member 32 may be disposed in each of the above.

　また、摩擦発生機構３０は、複数の台座部３１と、複数の台座部３１の外端面３４から内側面に貫通し、当接部材が摺動可能に設けられるとともに外端面３４側に付勢要素３３が設けられる貫通孔３５とを備えている。
　次に付勢要素３３について説明する。 Further, the friction generating mechanism 30 penetrates from the plurality of pedestals 31 and the outer end surface 34 of the plurality of pedestals 31 to the inner side surface, and the contact member is slidably provided and the biasing element to the outer end surface 34 side And a through hole 35 in which the reference numeral 33 is provided.
Next, the biasing element 33 will be described.

　付勢要素３３は、貫通孔３５に設けられた雌ねじ部３６と、雌ねじ部３６に螺合される雄ねじ部３７と、雄ねじ部３７と当接部材３２との間で貫通孔３５に収納されるとともに圧縮されることで反発力が大きくなる第１弾性部材３８である。 The biasing element 33 is housed in the through hole 35 between the female screw portion 36 provided in the through hole 35, the male screw portion 37 screwed to the female screw portion 36, and the male screw portion 37 and the contact member 32. The first elastic member 38 has a repulsive force that is increased by being compressed together.

　かかる構成によれば、貫通孔３５に設けた雌ねじ部３６に雄ねじ部３７を螺合し、雄ねじ部３７によって第１弾性部材３８を圧縮し、当接部材３２を付勢するので、付勢力の調整を容易に行うことができる。 According to this configuration, the male screw portion 37 is screwed into the female screw portion 36 provided in the through hole 35, the first elastic member 38 is compressed by the male screw portion 37, and the contact member 32 is biased. Adjustment can be easily performed.

　なお、第１弾性部材３８は、圧縮ばねであることが好ましいが、これに限定されず、ゴム、板ばね等、圧縮されることで反発力が大きくなる部材であれば他の一般的な部材であっても差し支えない。
　次に以上に述べたダンパ１０の作用について説明する。 In addition, although it is preferable that the 1st elastic member 38 is a compression spring, it is not limited to this, and if it is a member which becomes large by reaction, such as rubber and a leaf spring, other general members It does not matter.
Next, the operation of the damper 10 described above will be described.

　図７Ａはダンパ１０が伸びた状態であり、第１取付部１２の第１貫通孔１３と第２取付部２２の第２貫通孔２３を結ぶ直線Ｌに対して、ダンパ１０への衝撃力が矢印（１）のように傾斜角θで傾斜して入力される。図７Ｂに示すように、ダンパ１０が所定の摩擦力を得て衝撃力を吸収し、摺動部材１１が収納部２０に収納されてダンパ１０が縮む。 FIG. 7A shows a state in which the damper 10 is extended, and the impact force to the damper 10 is a straight line L connecting the first through hole 13 of the first mounting portion 12 and the second through hole 23 of the second mounting portion 22. As shown by arrow (1), it is input at an inclination angle θ. As shown in FIG. 7B, the damper 10 obtains a predetermined frictional force to absorb the impact force, and the sliding member 11 is accommodated in the accommodation portion 20, whereby the damper 10 is contracted.

　図８Ａに示すように、調整前の摩擦発生機構３０の横断面において、図上部の付勢要素３３および図下部の付勢要素３３の雄ねじ部３６のねじ込み量が同じ場合には、図上部の当接部材３２が受ける矢印（２）の垂直抗力が、図下部の当接部材３２が受ける矢印（３）の垂直抗力よりも大きくなり、摩擦発生機構３０は所定の摩擦力を得ることができない。 As shown in FIG. 8A, in the cross section of the friction generating mechanism 30 before adjustment, when the screwing amount of the male screw portion 36 of the biasing element 33 at the top of the figure and the biasing element 33 at the bottom of the figure is the same, The normal force of the arrow (2) received by the contact member 32 is larger than the normal force of the arrow (3) received by the contact member 32 at the bottom of the figure, and the friction generating mechanism 30 can not obtain a predetermined friction force. .

　そこで、摩擦発生機構３０の調整を行う。図８Ｂに示すように、図下部の付勢部材３２の雄ねじ部３７を矢印（４）のようにねじ込み、図下部の付勢要素３３の付勢力による当接部材３２が受ける垂直抗力を矢印（５）のように大きくし、摩擦発生機構３０全体の摩擦力を調整することで、所定の摩擦力を得る。 Therefore, the friction generating mechanism 30 is adjusted. As shown in FIG. 8B, the male screw portion 37 of the biasing member 32 in the lower part of the figure is screwed as shown by the arrow (4), and the vertical force received by the abutting member 32 by the biasing force of the biasing element 33 in the lower part As shown in 5), the friction force of the entire friction generating mechanism 30 is adjusted to obtain a predetermined friction force.

　ダンパ１０に衝撃力が入力される際、摺動部材１１が収納部２０に収納されて、摩擦発生機構３０によって摺動部材１１との間に摩擦力が発生するが、摩擦発生機構３０は、摺動部材１１の外側面１７に当接する複数の当接部材３２のそれぞれを、収納部２０に設けられた複数の付勢要素３３で摺動部材１１に押し付けて付勢力を作用させることで、複数の方向から当接部材３２と摺動部材１１の間に摩擦力を発生させることができる。 When an impact force is input to the damper 10, the sliding member 11 is housed in the housing portion 20, and a friction force is generated between the sliding member 11 and the friction generation mechanism 30, but the friction generation mechanism 30 By pressing each of the plurality of contact members 32 in contact with the outer side surface 17 of the slide member 11 against the slide member 11 by the plurality of biasing elements 33 provided in the storage portion 20, a biasing force is applied. Frictional force can be generated between the contact member 32 and the sliding member 11 from a plurality of directions.

　さらに、複数の当接部材３２と複数の付勢要素３３とは、摺動部材１１の横断面において、少なくとも一対の付勢要素３３のそれぞれから複数の当接部材３２のそれぞれに作用する付勢力のベクトルの内積が０または負になるように、配置されているので、一方向のみだけではなく、いずれの方向に対しても付勢力を作用させることができる。 Furthermore, in the cross section of the sliding member 11, the plurality of abutment members 32 and the plurality of biasing elements 33 exert a biasing force that acts on each of the plurality of abutment members 32 from each of at least a pair of biasing elements 33. The arrangement is made so that the inner product of the vectors of 0 and 0 is negative, so that the biasing force can be applied not only in one direction but also in any direction.

　このため、乗り物１への衝撃力がダンパ１０に入力される際に、ダンパ１０の両端部を結ぶ直線Ｌに対して衝撃力がいずれの方向に傾いて入力された場合であっても、摺動部材１１の横断面において、入力が逃げて摩擦力が小さくなる位置での付勢要素３３の付勢力を大きくすることで摩擦力を大きくし、摩擦発生機構３０全体として所定の摩擦力にすることができる。結果、ダンパ１０の取付場所によらず所定の摩擦力に調整することができる。 For this reason, when the impact force to the vehicle 1 is input to the damper 10, even if the impact force is input in any direction with respect to the straight line L connecting both ends of the damper 10, In the cross section of the dynamic member 11, the frictional force is increased by increasing the biasing force of the biasing element 33 at a position where the input is released and the frictional force is reduced, and the friction generating mechanism 30 as a whole is made to have a predetermined frictional force. be able to. As a result, it can adjust to predetermined | prescribed frictional force irrespective of the attachment location of the damper 10. FIG.

　さらに、付勢要素３３が軸線のまわりに回転対称性を有するように配置されているので、衝撃力の入力がいずれの方向に傾いても、付勢力を大きくしたい位置または付勢力を大きくしたい位置に近い位置に付勢要素３３が配置され、付勢要素３３の付勢力の調整を行い易くすることができる。
　次に第１実施形態の別態様について説明する。 Furthermore, since the biasing element 33 is arranged to have rotational symmetry around the axis, the position at which it is desired to increase the biasing force or the position at which the biasing force is to be increased regardless of the direction of the impact force input. The biasing element 33 can be disposed at a position close to the above to facilitate adjustment of the biasing force of the biasing element 33.
Next, another aspect of the first embodiment will be described.

　図９に示すように、摺動部材１１の外形は正八角形であり、摺動部材１１の横断面において、摺動部材１１の外側面１７のうち、一対の付勢要素３３のそれぞれから２つの当接部材３２のそれぞれに作用する付勢力のベクトルの成す角が１８０°になる位置に２つの付勢要素３３が配置され、これら２つの付勢要素３３に隣接するようにさらに２つの付勢要素３３が配置されている。 As shown in FIG. 9, the outer shape of the sliding member 11 is a regular octagon, and in the cross section of the sliding member 11, two of the outer side surfaces 17 of the sliding member 11 from each of the pair of biasing elements 33 Two biasing elements 33 are disposed at a position where the vector of the biasing force acting on each of the abutting members 32 forms an angle of 180 °, and two more biasings are made adjacent to these two biasing elements 33. Elements 33 are arranged.

　図１０に示すように、摺動部材１１の外形は円形であり、摺動部材１１の横断面において、３つの付勢部材１１が回転対称に配置され、当接部材３２の摺動部材１１との当接面が円弧上に形成されている。 As shown in FIG. 10, the outer shape of the sliding member 11 is circular, and in the cross section of the sliding member 11, three biasing members 11 are disposed in rotational symmetry, and the sliding member 11 of the contact member 32 The contact surface of the is formed on a circular arc.

　なお、図５に示す実施形態では、複数の付勢要素３３および複数の当接部材３２のそれぞれを、摺動部材１１の軸線の周りに回転対称性を有するように配置したが、これに限定されず、複数の付勢要素３３のうち少なくとも一対の付勢要素３３のそれぞれから複数の当接部材３２のそれぞれに作用する付勢力のベクトルの内積が０または負になるように、複数の当接部材３２と複数の付勢要素３３とが配置されていれば、摺動部材１１の軸線の周りに回転対称性を有さずに不均一に配置してもよい。さらには、摺動部材１１の外形を円形にして、付勢要素３３の数を３つ、４つ等にしてもよい。 In the embodiment shown in FIG. 5, the plurality of biasing elements 33 and the plurality of contact members 32 are arranged to have rotational symmetry around the axis of the sliding member 11, but the invention is limited thereto. And a plurality of biasing elements such that the inner product of the vector of biasing forces acting on each of the plurality of abutment members 32 from each of at least one pair of biasing elements 33 among the plurality of biasing elements 33 is 0 or negative. If the contact member 32 and the plurality of biasing elements 33 are arranged, they may be arranged unevenly without having rotational symmetry around the axis of the sliding member 11. Furthermore, the outer shape of the sliding member 11 may be circular, and the number of biasing elements 33 may be three, four, or the like.

　（第２実施形態）
　次に本発明の第２実施形態を説明する。なお、第１実施形態と同様の構成については、説明を省略し、符号を流用するものとする。 Second Embodiment
Next, a second embodiment of the present invention will be described. In addition, description is abbreviate | omitted about the structure similar to 1st Embodiment, and suppose that a code | symbol is diverted.

　本発明の第２実施形態に係るダンパ１０は、直線状に延びる摺動部材１１と、摺動部材１１を収納する収納部２０とを備え、摺動部材１１に収納部２０との間に摩擦力を発生させる摩擦発生機構３０を備えている。 The damper 10 according to the second embodiment of the present invention includes a linearly extending sliding member 11 and a housing portion 20 for housing the sliding member 11, and the friction between the sliding member 11 and the housing portion 20 is provided. A friction generating mechanism 30 for generating a force is provided.

　摩擦発生機構３０は、収納部２０の内側面２９に当接する複数の当接部材と、摺動部材１１に設けられ複数の当接部材のそれぞれに内側面２９に向かって付勢力を作用させることで複数の当接部材のそれぞれを内側面２９に押し付ける付勢要素とを備えている。摺動部材１１の横断面において、複数の付勢要素のうち少なくとも一対の付勢要素のそれぞれから複数の当接部材のそれぞれに作用する付勢力のベクトルの内積が０または負になるように、複数の当接部材と複数の付勢要素とが配置されている。 The friction generating mechanism 30 applies an urging force toward the inner side surface 29 to each of a plurality of contact members provided in contact with the inner side surface 29 of the storage portion 20 and the plurality of contact members provided on the sliding member 11. And a biasing element for pressing each of the plurality of abutment members against the inner surface 29. In the cross section of the sliding member 11, the inner product of the vector of biasing forces acting on each of the plurality of abutment members from each of at least a pair of the plurality of biasing elements is 0 or negative. A plurality of abutment members and a plurality of biasing elements are arranged.

　かかる構成によれば、ダンパ１０に衝撃力が入力される際、摺動部材１１が収納部２０に収納されて、摩擦発生機構によって摺動部材１１との間に摩擦力が発生する。摩擦発生機構は、収納部２０の内側面２９に当接する複数の当接部材のそれぞれを、摺動部材１１に設けられた複数の付勢要素で収納部２０の内側面に押し付けて付勢力を作用させることで、複数の方向から当接部材と内側面２９の間に摩擦力を発生させることができる。 According to this configuration, when an impact force is input to the damper 10, the sliding member 11 is stored in the storage portion 20, and a friction generating mechanism generates a frictional force with the sliding member 11. The friction generating mechanism presses the urging force by pressing each of the plurality of contact members in contact with the inner side surface 29 of the storage unit 20 against the inner side surface of the storage unit 20 by the plurality of biasing elements provided on the sliding member 11. By acting, frictional force can be generated between the contact member and the inner side surface 29 from a plurality of directions.

　さらに、複数の当接部材と複数の付勢要素とは、摺動部材１１の横断面において、少なくとも一対の付勢要素のそれぞれから複数の当接部材のそれぞれに作用する付勢力のベクトルの内積が０または負になるように、配置されているので、一方向のみだけではなく、いずれの方向に対しても付勢力を作用させることができる。 Furthermore, in the cross section of the sliding member 11, the plurality of abutment members and the plurality of biasing elements are the inner product of the vectors of the biasing forces that act on each of the plurality of abutment members from each of at least a pair of biasing elements. Is arranged to be 0 or negative, it is possible to exert biasing force not only in one direction but also in any direction.

　このため、乗り物１への衝撃力がダンパ１０に入力される際に、ダンパ１０の両端部を結ぶ直線に対して衝撃力がいずれの方向に傾いて入力された場合であっても、摺動部材１１の横断面においてそのままであれば摩擦力が小さくなるような位置で、付勢要素の付勢力を大きくすることで摩擦力を大きくし、摩擦発生機構全体として所定の摩擦力にすることができる。この結果、ダンパ１０の取付場所によらず所定の摩擦力に調整することができる。 For this reason, when the impact force to the vehicle 1 is input to the damper 10, even if the impact force is input in any direction with respect to the straight line connecting both ends of the damper 10, the sliding is performed. The frictional force may be increased by increasing the biasing force of the biasing element at a position where the frictional force is reduced if the cross section of the member 11 is maintained as it is, and the friction generating mechanism as a whole may have a predetermined frictional force. it can. As a result, it can adjust to predetermined | prescribed frictional force irrespective of the attachment place of the damper 10. FIG.

　なお、第１実施形態では、摺動部材１１の横断面形状が略正八角形に設計されていたが、摺動部材１１の横断面形状が略三角形状、略矩形形状または略台形状などの他の形状であってもよい。当接部材３２の当接面を平面にして、摺動部材１１の外側面１７を構成する平面のそれぞれに当接部材を当接させる場合、当該横断面形状は直線状の辺を有する多角形であればよい。さらには、摺動部材１１は円柱であってもよく、この場合は、当接部材３２の当接面を円柱の表面に沿う略凹曲面形状にすればよい。 In the first embodiment, the cross-sectional shape of the sliding member 11 is designed to be substantially regular octagonal, but the cross-sectional shape of the sliding member 11 is approximately triangular, rectangular or trapezoidal, etc. It may be in the form of When the contact surface of the contact member 32 is flat and the contact member is in contact with each of the planes constituting the outer surface 17 of the sliding member 11, the cross sectional shape is a polygon having straight sides. If it is Furthermore, the sliding member 11 may be a cylinder, and in this case, the contact surface of the contact member 32 may have a substantially concave curved shape along the surface of the cylinder.

１‥乗り物、１０‥ダンパ、１１‥摺動部材（ピストンロッド）、１６‥内側面、１７‥外側面、２０‥収納部（シリンダ）、２４‥内筒、２６‥第２弾性部材、３０‥摩擦発生機構、３１‥台座部、３２‥当接部材、３３、３３ａ、３３ｂ、３３ｃ‥付勢要素、３４‥外端面、３５‥貫通孔、３６‥雌ねじ部、３７‥雄ねじ部、３８‥第１弾性部材。 1. Vehicle, 10. Damper, 11. Sliding member (piston rod), 16. Inner surface, 17. Outer surface, 20 Housing (cylinder) 24, Inner cylinder, 26 Second elastic member, 30. Friction generating mechanism, 31. pedestal portion, 32. abutment member, 33, 33a, 33b, 33c .. biasing element, 34 .. outer end surface, 35 .. through hole, 36 .. internal thread, 37. external thread, 38. third. 1 elastic member.

Claims

　直線状に延びる摺動部材と、前記摺動部材を収納する収納部とを有し、前記収納部に前記摺動部材との間に摩擦力を発生させる摩擦発生機構を備えているダンパであって、
　前記摩擦発生機構は、前記摺動部材の外側面に当接する複数の当接部材と、前記収納部に設けられ前記複数の当接部材のそれぞれに前記摺動部材の軸線に向かって付勢力を作用させることで前記複数の当接部材のそれぞれを前記摺動部材に押し付ける複数の付勢要素とを備え、
　前記摺動部材の横断面において、前記複数の付勢要素のうち少なくとも一対の付勢要素のそれぞれから前記複数の当接部材のそれぞれに作用する前記付勢力のベクトルの内積が０または負になるように、前記複数の当接部材と前記複数の付勢要素とが配置されていることを特徴とするダンパ。 A damper comprising: a linearly extending sliding member; and a housing portion for housing the sliding member, wherein the housing portion is provided with a friction generating mechanism for generating a frictional force between the housing and the sliding member. ,
The friction generating mechanism applies a biasing force toward the axis of the sliding member to each of the plurality of abutting members that abut the outer surface of the sliding member, and the plurality of abutting members provided in the storage portion. And a plurality of biasing elements for pressing each of the plurality of contact members against the sliding member by acting.
In the cross section of the sliding member, the inner product of the vector of the biasing force acting on each of the plurality of abutment members from each of at least a pair of the plurality of biasing elements becomes 0 or negative. The damper according to claim 1, wherein the plurality of abutment members and the plurality of biasing elements are disposed.
　請求項１記載のダンパであって、
　前記複数の付勢要素および前記複数の当接部材のそれぞれは、前記摺動部材の横断面において、前記軸線を基準とする回転対称性を有するように配置されていることを特徴とするダンパ。 The damper according to claim 1, wherein
A damper characterized in that each of the plurality of biasing elements and the plurality of contact members is arranged to have rotational symmetry based on the axis in the cross section of the sliding member.
　請求項１記載のダンパであって、
　前記複数の付勢要素および前記複数の当接部材のそれぞれは、前記摺動部材の長手方向について同じ位置に配置されていることを特徴とするダンパ。 The damper according to claim 1, wherein
A damper characterized in that each of the plurality of biasing elements and the plurality of contact members is disposed at the same position in the longitudinal direction of the sliding member.
　請求項１記載のダンパであって、
　前記摺動部材は筒状であり、
　前記収納部の内側には、前記収納部の軸線に沿って延び少なくとも前記摩擦発生機構が配置される前記収納部の内側に位置するとともに前記摺動部材の内側面を摺動可能に支持する内筒が備えられていることを特徴とするダンパ。 The damper according to claim 1, wherein
The sliding member is cylindrical,
The inside of the storage portion is disposed along the axis of the storage portion, at least located inside the storage portion in which the friction generating mechanism is disposed, and slidably supports the inner surface of the sliding member. A damper characterized in that a cylinder is provided.
　請求項１記載のダンパであって、
　前記収納部は、筒状または有底筒状のシリンダであり、
　前記摺動部材は、角筒状のピストンロッドであり、
　前記摩擦発生機構は、前記角筒状の前記外側面を構成する複数の平面のそれぞれに対して配置されていることを特徴とするダンパ。 The damper according to claim 1, wherein
The storage unit is a cylindrical or bottomed cylindrical cylinder,
The sliding member is a square cylindrical piston rod,
The damper according to claim 1, wherein the friction generating mechanism is disposed for each of a plurality of planes forming the outer surface of the rectangular tube.
　請求項１載のダンパであって、
　前記収納部は、筒状または有底筒状のシリンダであり、
　前記摺動部材は、角柱状のピストンロッドであり、
　前記摩擦発生機構は、前記角柱状の前記外側面を構成する複数の平面のそれぞれに対して配置されていることを特徴とするダンパ。 The damper according to claim 1, wherein
The storage unit is a cylindrical or bottomed cylindrical cylinder,
The sliding member is a prismatic piston rod,
The damper according to claim 1, wherein the friction generating mechanism is disposed for each of a plurality of planes forming the outer surface of the prismatic shape.
　請求項１記載のダンパであって、
　前記摩擦発生機構は、前記収納部の前記摺動部材挿入側の端部に設けられており、
　前記収納部の表面から径方向外側に突出する台座部と、
　前記台座部の外端面から内側面に貫通し、前記当接部材が摺動可能に設けられるとともに前記外端面側に前記付勢要素が設けられる貫通孔とを備えていることを特徴とするダンパ。 The damper according to claim 1, wherein
The friction generating mechanism is provided at an end of the storage portion on the sliding member insertion side,
A pedestal projecting radially outward from the surface of the housing;
The damper is characterized in that it penetrates from the outer end surface of the pedestal portion to the inner side surface, the contact member is provided slidably, and the through hole in which the biasing element is provided on the outer end surface side. .
　請求項７記載のダンパであって、
　前記付勢要素は、前記貫通孔に設けられた雌ねじ部と、前記雌ねじ部に螺合される雄ねじ部と、前記雄ねじ部と前記当接部材との間で前記貫通孔に収納されるとともに圧縮されることで反発力が大きくなる第１弾性部材であることを特徴とするダンパ。 The damper according to claim 7, wherein
The biasing element is accommodated in the through hole between an internal thread portion provided in the through hole, an external thread portion screwed to the internal thread portion, the external thread portion and the contact member, and the compression element is compressed. A damper characterized in that it is a first elastic member whose repulsive force is increased by being carried out.
　請求項１記載のダンパであって、
　前記収納部の内側に、ばね座が設けられ、
　前記ばね座に、前記摺動部材を伸び方向に付勢する第２弾性部材が設けられていることを特徴とするダンパ。 The damper according to claim 1, wherein
A spring seat is provided inside the storage unit,
A damper characterized in that the spring seat is provided with a second elastic member which biases the sliding member in an extending direction.
　直線状に延びる摺動部材と、前記摺動部材を収納する収納部とを有し、前記摺動部材に前記収納部との間に摩擦力を発生させる摩擦発生機構を備えているダンパであって、
　前記摩擦発生機構は、前記収納部の内側面に当接する複数の当接部材と、前記摺動部材に設けられ前記複数の当接部材のそれぞれに前記内側面に向かって付勢力を作用させることで前記複数の当接部材のそれぞれを前記内側面に押し付ける付勢要素とを備え、
　前記摺動部材の横断面において、前記複数の付勢要素のうち少なくとも一対の付勢要素のそれぞれから前記複数の当接部材のそれぞれに作用する前記付勢力のベクトルの内積が０または負になるように、前記複数の当接部材と前記複数の付勢要素とが配置されていることを特徴とするダンパ。 A damper comprising: a linearly extending sliding member; and a housing portion for housing the sliding member, the friction member including a friction generating mechanism for causing the sliding member to generate a frictional force with the housing portion. ,
The friction generating mechanism applies a biasing force to each of the plurality of contact members in contact with the inner side surface of the storage portion and the plurality of contact members provided on the sliding member toward the inner surface. And a biasing element for pressing each of the plurality of abutment members against the inner surface,
In the cross section of the sliding member, the inner product of the vector of the biasing force acting on each of the plurality of abutment members from each of at least a pair of the plurality of biasing elements becomes 0 or negative. The damper according to claim 1, wherein the plurality of abutment members and the plurality of biasing elements are disposed.