JP6918674B2

JP6918674B2 - damper

Info

Publication number: JP6918674B2
Application number: JP2017199774A
Authority: JP
Inventors: 亮平金子; 浩太郎宮田
Original assignee: Oiles Corp
Current assignee: Oiles Corp
Priority date: 2017-10-13
Filing date: 2017-10-13
Publication date: 2021-08-11
Anticipated expiration: 2037-10-13
Also published as: WO2019074063A1; JP2019074125A

Description

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 cushions 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 equipped with dampers in order to reduce the impact received at the time of landing. Dampers include oil dampers that utilize the resistance force of oil and friction dampers that utilize the frictional force between members, but friction dampers may be used in places where oil cannot 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手段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, a friction damper including a sliding member, a storage portion for accommodating the sliding member, and a friction generating means for generating a frictional force between the sliding member is known (for example,). See Patent Document 1).

特許文献１の摩擦ダンパは、板状の摺動部材と、該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手段が備えられている。摩擦発生手段は、板状の摺動部材の表面及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-shaped sliding member and a square tubular storage portion for accommodating the sliding member, and the storage portion generates a frictional force between the sliding member and the sliding member. A friction generating means is provided. The friction generating means includes a plurality of friction members that abut on the front surface and the back surface of the plate-shaped sliding member, and a plurality of urging members that are provided inside the storage portion and press each of the plurality of friction members against the sliding member. , It is equipped with an 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 a screw hole formed in the accommodating portion facing the urging member on the surface side of the sliding member, and a friction member is screwed into the screw hole from the outside of the accommodating portion in the direction perpendicular to the sliding member. By adjusting the screwing amount of the bolt, the frictional force acting by the urging force that presses the friction member in the direction perpendicular to the sliding member is adjusted. When an impact force is input straight to the straight line connecting both ends of the friction damper, the adjusted urging force acts to generate a predetermined frictional force.

特開２００４−３５３８１３号公報Japanese Unexamined Patent Publication 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 on the vehicle is input to the friction damper, the impact force may not be input straight but tilted with respect to the straight line connecting both ends of the friction damper depending on the mounting location of the friction damper. be.

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。 However, according to the friction damper of Patent Document 1, since the adjusting means is arranged only on the surface side of the sliding member and the urging force can be adjusted only from one direction, the impact force is input with different inclinations. In this case, it is difficult to obtain a predetermined frictional force.

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。 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］上記目的を達成するため、本発明のダンパは、
直線状に延びる摺動部材と、該摺動部材を収納する収納部とを備え、該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手段を備えているダンパであって、
前記摩擦発生手段は、前記摺動部材の外側面と、該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手段とを備え、
前記摺動部材の横断面において、前記複数の付勢手段のうち少なくとも一対の付勢手段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又は負になるように、前記複数の当接部材と前記複数の付勢手段とが配置されていることを特徴とする。 [1] In order to achieve the above object, the damper of the present invention is used.
A damper provided with a sliding member extending linearly and a storage portion for accommodating the sliding member, and the storage portion provided with a friction generating means for generating a frictional force between the sliding member and the sliding member. ,
The friction generating means is provided on the outer surface of the sliding member, a plurality of contact members that abut on the outer surface, and the plurality of contact members provided in the storage portion on the axis of the sliding member. It is provided with a plurality of urging means for pressing each of the plurality of contact members against the sliding member by applying an urging force toward the sliding member.
In the cross section of the sliding member, the inner product of the vector of the urging force acting on each of the plurality of abutting members from each of at least one pair of urging means among the plurality of urging means becomes 0 or negative. As described above, the plurality of contact members and the plurality of urging means are arranged.

かかる構成によれば、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、摩擦発生手段によって摺動部材との間に摩擦力が発生する。摩擦発生手段は、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手段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手段とは、摺動部材の横断面において、少なくとも一対の付勢手段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又は負になるように、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。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手段の付勢力を大きくすることで摩擦力を大きくし、摩擦発生手段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。 According to such a configuration, when an impact force is input to the damper, the sliding member is housed in the storage portion, and a frictional force is generated between the sliding member and the sliding member by the friction generating means. A plurality of friction generating means are formed by pressing each of a plurality of contacting members that come into contact with the outer surface of the sliding member against the sliding member by a plurality of urging means provided in the storage portion to exert an urging force. A frictional force can be generated between the abutting member and the sliding member from the direction of. Further, the plurality of abutting members and the plurality of urging means have an internal product of vectors of urging forces acting on each of the plurality of abutting members from at least each of the pair of urging means in the cross section of the sliding member. Since it is arranged so as to be 0 or negative, the urging force can be applied not only in one direction but also in any direction. Therefore, when the impact force on the vehicle is input to the damper, the sliding member is crossed regardless of the direction in which the impact force is tilted with respect to the straight line connecting both ends of the damper. On the surface, the frictional force can be increased by increasing the urging force of the urging means at the position where the input escapes and the frictional force becomes small, and the friction generating means as a whole can have a predetermined frictional force. As a result, the frictional force can be adjusted to a predetermined value regardless of the mounting location of the damper.

［２］また、本発明のダンパにおいて、
前記複数の付勢手段及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] Further, in the damper of the present invention,
It is preferable that each of the plurality of urging means and the plurality of contact members is arranged so as to have rotational symmetry around the axis in the cross section of the sliding member.

かかる構成によれば、付勢手段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又は付勢力を大きくしたい位置に近い位置に付勢手段が配置され、付勢手段の付勢力の調整を行い易くすることができる。 According to such a configuration, since the urging means is arranged so as to have rotational symmetry around the axis line, the position or the urging force for which the urging force is desired to be increased can be determined regardless of the direction in which the impact force input is tilted. The urging means is arranged at a position close to the position to be increased, and the urging force of the urging means can be easily adjusted.

［３］また、本発明のダンパにおいて、
前記複数の付勢手段及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] Further, in the damper of the present invention,
It is preferable that each of the plurality of urging means and the plurality of contact members are arranged at the same position in the longitudinal direction of the sliding member.

かかる構成によれば、付勢手段の付勢力の調整を、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 such a configuration, the urging force of the urging means can be easily adjusted only at the same position in the longitudinal direction of the sliding member without considering the difference in the action of the urging force in the longitudinal direction of the sliding member. Can be done.

［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、該収納部の軸線に沿って延び少なくとも前記摩擦発生手段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周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] Further, in the damper of the present invention,
The sliding member has a tubular shape and has a tubular shape.
Inside the storage portion, it extends along the axis of the storage portion and is located at least inside the storage portion where the friction generating means is arranged and slidably supports the inner peripheral surface of the sliding member. It is preferable that an inner cylinder is provided.

かかる構成によれば、付勢手段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 this configuration, the sliding member that receives the urging force of the urging means is slidably supported from the inside by the inner cylinder, so that the sliding member does not escape inward and receives a large urging force. can.

［５］また、本発明のダンパにおいて、
前記収納部は、筒状又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、
前記摩擦発生手段は、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] Further, in the damper of the present invention,
The storage portion is a cylinder or a bottomed cylinder.
The sliding member is a square tubular piston rod.
It is preferable that the friction generating means is arranged with respect to each of a plurality of planes constituting the square tubular outer surface.

かかる構成によれば、収納部は、筒状又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、ピストンロッド及びシリンダを容易に構成することができる。さらに、摩擦発生手段は、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、外側面に摩擦発生手段の当接部材が当接する面積を確保しやすくできる。 According to such a configuration, since the accommodating portion is a tubular or bottomed tubular cylinder and the sliding member is a square tubular piston rod, the piston rod and the cylinder can be easily configured. Further, since the friction generating means is arranged with respect to each of the plurality of planes forming the square tubular outer surface, it is possible to easily secure an area in which the contact member of the friction generating means 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、筒状又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、
前記摩擦発生手段は、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] Further, in the damper of the present invention,
The storage portion is a cylinder or a bottomed cylinder.
The sliding member is a prismatic piston rod.
It is preferable that the friction generating means is arranged with respect to each of a plurality of planes constituting the outer surface of the prismatic column.

かかる構成によれば、収納部は、筒状又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、ピストンロッド及びシリンダを容易に構成することができる。さらに、摩擦発生手段は、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、外側面に摩擦発生手段の当接部材が当接する面積を確保しやすくできる。 According to such a configuration, since the accommodating portion is a cylindrical or bottomed tubular cylinder and the sliding member is a prismatic piston rod, the piston rod and the cylinder can be easily configured. Further, since the friction generating means is arranged with respect to each of the plurality of planes forming the prismatic outer surface, it is possible to easily secure an area in which the contact member of the friction generating means contacts the outer surface.

［７］また、本発明のダンパにおいて、
前記摩擦発生手段は、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、
該台座部の外端面から内周面に貫通し、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手段が設けられる貫通孔とを備えていることが好ましい。 [7] Further, in the damper of the present invention,
The friction generating means is provided at the end of the accommodating portion on the sliding member insertion side.
A pedestal portion that protrudes radially outward from the surface of the storage portion,
It is preferable that the pedestal portion is provided with a through hole that penetrates from the outer end surface to the inner peripheral surface, the contact member is slidably provided, and the urging means is provided on the outer end surface side.

かかる構成によれば、摩擦発生手段を、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、該貫通孔に当接部材を設けて外端面側に付勢手段を設けるので構成を簡単にすることができる。 According to such a configuration, by providing the friction generating means at the end of the storage portion on the sliding member insertion side, it is possible to maximize the stroke of generating friction with a limited stroke of the sliding member. .. Further, a through hole is formed in the pedestal portion that protrudes radially outward from the surface of the storage portion to penetrate from the outer end surface to the inner sliding surface, and a contact member is provided in the through hole to provide an urging means on the outer end surface side. Since it is provided, the configuration can be simplified.

［８］また、本発明のダンパにおいて、
前記付勢手段は、前記貫通孔に設けられた雌ねじ部と、該雌ねじ部に螺合される雄ねじ部と、該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] Further, in the damper of the present invention,
The urging means is housed in the through hole and compressed between the female threaded portion provided in the through hole, the male threaded portion screwed into the female threaded portion, and the male threaded portion and the contact member. It is preferable that the first elastic member has a large repulsive force.

かかる構成によれば、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 this configuration, the male threaded portion is screwed into the female threaded portion provided in the through hole, the first elastic member is compressed by the male threaded portion, and the abutting member is urged, so that the urging force can be easily adjusted. Can be done.

［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、
該ばね座に、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] Further, in the damper of the present invention,
A spring seat is provided inside the storage portion.
It is preferable that the spring seat is provided with a second elastic member that urges the sliding member in the extension direction.

かかる構成によれば、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 such a configuration, since the sliding member is also urged by the second elastic member, it is possible to cope with a larger impact force.

［１０］また、本発明のダンパにおいて、
直線状に延びる摺動部材と、該摺動部材を収納する収納部とを備え、該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手段を備えているダンパであって、
前記摩擦発生手段は、前記収納部の内周面と、該内周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周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周面に押し付ける付勢手段とを備え、
前記摺動部材の横断面において、前記複数の付勢手段のうち少なくとも一対の付勢手段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又は負になるように、前記複数の当接部材と前記複数の付勢手段とが配置されていることが好ましい。 [10] Further, in the damper of the present invention,
A damper provided with a sliding member extending linearly and a storage portion for accommodating the sliding member, and the sliding member provided with a friction generating means for generating a frictional force between the sliding member and the storage portion. ,
The friction generating means is provided on the inner peripheral surface of the accommodating portion, a plurality of contact members that abut on the inner peripheral surface, and the plurality of contact members provided on the sliding member on the inner peripheral surface. It is provided with an urging means for pressing each of the plurality of contact members against the inner peripheral surface by applying an urging force toward the inner peripheral surface.
In the cross section of the sliding member, the inner product of the vector of the urging force acting on each of the plurality of abutting members from each of at least one pair of urging means among the plurality of urging means becomes 0 or negative. As described above, it is preferable that the plurality of contact members and the plurality of urging means are arranged.

かかる構成によれば、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、摩擦発生手段によって摺動部材との間に摩擦力が発生する。摩擦発生手段は、収納部の内周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手段で収納部の内周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周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手段とは、摺動部材の横断面において、少なくとも一対の付勢手段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又は負になるように、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。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、付勢手段の付勢力を大きくすることで摩擦力を大きくし、摩擦発生手段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。 According to such a configuration, when an impact force is input to the damper, the sliding member is housed in the storage portion, and a frictional force is generated between the sliding member and the sliding member by the friction generating means. The friction generating means applies an urging force by pressing each of the plurality of contact members that come into contact with the inner peripheral surface of the storage portion against the inner peripheral surface of the storage portion by a plurality of urging means provided on the sliding member. As a result, frictional force can be generated between the contact member and the inner peripheral surface from a plurality of directions. Further, the plurality of abutting members and the plurality of urging means have an internal product of vectors of urging forces acting on each of the plurality of abutting members from at least each of the pair of urging means in the cross section of the sliding member. Since it is arranged so as to be 0 or negative, the urging force can be applied not only in one direction but also in any direction. Therefore, when the impact force on the vehicle is input to the damper, the sliding member is crossed regardless of the direction in which the impact force is tilted with respect to the straight line connecting both ends of the damper. The frictional force can be increased by increasing the urging force of the urging means at a position where the frictional force becomes small if it is left as it is on the surface, and the frictional force can be set to a predetermined value as a whole of the friction generating means. As a result, the frictional force can be adjusted to a predetermined value regardless of the mounting location of the 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である。It is a 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である。It is a perspective view which shows the damper of FIG. 図３Ａは図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である。図３Ｂは図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である。FIG. 3A is a front view showing a state in which the sliding member of FIG. 2 is housed in the storage portion and the damper is contracted. FIG. 3B is an operation diagram in a state where the sliding member of FIG. 2 comes out of the storage portion and the damper is extended. 図３ＢのIV−IV線断面図である。FIG. 3B is a sectional view taken along line IV-IV of FIG. 3B. 図３ＢのV−V線断面図である。FIG. 3B is a sectional view taken along line VV of FIG. 3B. 図４のダンパの要部拡大図である。It is an enlarged view of the main part of the damper of FIG. 図７Ａは本発明の第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である。図７Ｂはダンパが縮んだ際の作用図である。FIG. 7A is an action diagram when an impact force of the damper according to the first embodiment of the present invention is applied. FIG. 7B is an operation diagram when the damper is contracted. 図８Ａは摩擦発生手段を調整する前の図７Ａのダンパの入力状態における断面図である。図８Ｂは摩擦発生手段を調整した後の図７Ａのダンパの入力状態における作用図である。FIG. 8A is a cross-sectional view of the damper in the input state of FIG. 7A before adjusting the friction generating means. FIG. 8B is an operation diagram of the damper in the input state of FIG. 7A after adjusting the friction generating means. 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 another aspect of FIG.

（第１実施形態）
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、該本体部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。 (First Embodiment)
Hereinafter, the first embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the damper 10 according to the first embodiment of the present invention is provided in a vehicle 1 used for, for example, an attraction in an amusement park. The vehicle 1 is provided with a plate-shaped base 2 inside via a damper 10. Specifically, the vehicle 1 includes a main body portion 3 constituting the outer side, a first support portion 4 provided on the main body portion 3 to swingably support one end of the damper 10, and a damper 10 provided on the base portion 2. It includes a second support portion 5 that swingably supports the other end, a base portion 2 that is supported by a plurality of dampers 10, and a seat portion 6 that is provided on the base portion 2 and supports 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。 Vehicle 1 receives an impact force at the time of sudden start or sudden stop. This impact force is absorbed by the damper 10. In the embodiment, the vehicle 1 is a vehicle 1 used in an amusement park attraction or the like, but the vehicle 1 is not limited to this, and the vehicle 1 is a vehicle, a special vehicle, an airplane, or the like that needs to absorb an impact. If so, another vehicle 1 may be used.

次にダンパ１０の構成について説明する。図１及び図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、該摺動部材１１を収納する収納部２０とを備え、該収納部２０に摺動部材１１との間に摩擦力を発生させる摩擦発生手段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 sliding member 11 extending linearly and a storage portion 20 for accommodating the sliding member 11, and the storage portion 20 is provided with the sliding member 11. A friction generating means 30 for generating a frictional force is provided between the two.

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の端部から該摺動部材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 tubular piston rod, and a first mounting portion 12 to be mounted on the first support portion 4 is provided at an end portion. The first mounting portion 12 is a plate-shaped member that protrudes from the end portion of the sliding member 11 in the axial direction 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, so that 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 bottomed cylindrical cylinder, and the bottom portion 21 is provided with a second mounting portion 22 to be mounted on the second support portion 5. The second mounting portion 22 is a plate-shaped member protruding from the bottom portion 21 in the axial direction of the storage portion 20, and a second through hole 23 is formed in the central portion thereof. The shaft provided in the second support portion 5 is passed through the second through hole 23, so that the second mounting portion 22 is supported by the second support portion 5.

図４及び図５に示すように、摩擦発生手段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。摩擦発生手段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から内周面に貫通する貫通孔３５を形成し、該貫通孔３５に当接部材３２を設けて外端面３４側に付勢手段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 means 30 is provided at the end of the storage portion 20 on the insertion side of the sliding member 11, and eight pedestals projecting radially outward from the surface of the storage portion 20. The unit 31 is provided. By providing the friction generating means 30 at the end of the accommodating portion 20 on the insertion side of the sliding member 11, the stroke for generating friction can be maximized with the limited stroke of the sliding member 11. Further, a through hole 35 penetrating from the outer end surface 34 to the inner peripheral surface is formed in the pedestal portion 31 protruding outward in the tilt direction from the surface of the storage portion 20, and a contact member 32 is provided in the through hole 35 to provide the outer end surface. Since the urging means 33 is provided on the 34 side, 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。
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。 Next, the state of the sliding member 11 of the damper 10 will be described.
FIG. 3A shows a state in which the sliding member 11 is stored in the storage portion 20, the end portion of the sliding member 11 and the end portion of the storage portion 20 are flush with each other, and the damper 10 is in the most contracted state as a whole. Is. In FIG. 3B, the sliding member 11 protrudes most from the storage portion 20, and the damper 10 is in 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。
図２、図４及び図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該摺動部材１１の軸線に沿って第１の内筒１５が延びている。 Next, the configuration of the damper 10 will be described in detail.
As shown in FIGS. 2, 4 and 6, the sliding member 11 has a tubular shape, and a lid portion 14 is provided at an end portion. Inside the sliding member 11, a first inner cylinder 15 extends from the lid portion 14 to the vicinity of the end portion on the insertion side of the sliding member 11 along the axis 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該収納部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の内周面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 portion 20 has a tubular shape and is provided with a bottom portion 21 at an end portion. Inside the storage portion 20, a second inner cylinder 24 extends from the bottom portion 21 to the vicinity of the opening end portion of the storage portion 20 along the axis of the storage portion 20. The second inner cylinder 24 slidably supports the inner peripheral surface 16 of the sliding member 11. The first inner cylinder 15 is slidably inserted inside the second inner cylinder 24.

摺動部材１１の先端部の内周面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の先端部の内周面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 peripheral surface 16 of the tip end portion of the sliding member 11. A guide portion 28 for guiding the first inner cylinder 15 is provided on the inner peripheral surface 27 of the tip end portion of the second inner cylinder 24.

付勢手段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 that receives the urging force of the urging means 33 is slidably supported by the second inner cylinder 24 from the inside, the sliding member 11 does not escape inward and receives a large urging force. Can be done.

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。該ばね座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 arranged inside the storage portion 20. The spring seat 25 is provided with a second elastic member 26 that urges the sliding member 11 in the extension direction by abutting on the first inner cylinder 15. With this configuration, the sliding member 11 is also urged by the second elastic member 26, so that 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は該収納部２０の軸線に沿って延び少なくとも摩擦発生手段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の内周面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 portion 21 to the vicinity of the opening end portion of the storage portion 20, but the second inner cylinder 24 is not limited to this, and the second inner cylinder 24 is the storage portion. It suffices as long as it extends along the axis of the portion 20 and is located at least inside the storage portion 20 in which the friction generating means 30 is arranged and slidably supports the inner peripheral surface 16 of the sliding member 11. Further, the bottom portion 21 is provided at the end of the storage portion 20, but the present invention is not limited to this, and the bottom portion 21 may be provided in the middle of the storage portion 20 in the longitudinal direction as long as the second inner cylinder 24 can be supported. Further, in the embodiment, the sliding member 11 has a square cylinder shape, but the present invention is not limited to this, and a solid prism may be used. In this case, the second inner cylinder 24 is removed from the inside of the storage portion 20. The sliding member 11 can be stored in the storage portion 20 and the structure can be simplified.

次に摩擦発生手段３０について説明する。
図４から図６に示すように、摩擦発生手段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。 Next, the friction generating means 30 will be described.
As shown in FIGS. 4 to 6, the friction generating means 30 is arranged with respect to each of a plurality of planes constituting the square tubular outer surface 17 of the sliding member 11.

摩擦発生手段３０は、摺動部材１１の外側面１７と、該外側面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手段３３とを備えている。 The friction generating means 30 is provided on the outer surface 17 of the sliding member 11, the plurality of contact members 32 that abut on the outer surface 17, and the pedestal portion 31 that protrudes from the storage portion 20, and the friction generating means 30 is provided on the pedestal portion 31. Each of them is provided with a plurality of urging means 33 for pressing each of the plurality of contact members 32 against the sliding member 11 by applying an urging force toward the axis of the sliding member 11.

複数の付勢手段３３及び複数の当接部材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、付勢手段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、摩擦発生手段３０は、角柱状又は角筒状の外側面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に摩擦発生手段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 urging means 33 and the plurality of contact members 32 is arranged at the same position in the longitudinal direction of the sliding member 11. With such a configuration, the urging force of the urging means 33 can be adjusted at the same position in the longitudinal direction of the sliding member 11 without considering the difference in the action of the urging force in the longitudinal direction of the sliding member 11. It can be easily done only by. Further, since the friction generating means 30 is arranged with respect to each of the plurality of planes constituting the prismatic or square tubular outer surface 17, the contact member 32 of the friction generating means 30 is applied to the outer surface 17. It is possible to easily secure the contact area.

なお、実施形態では、複数の付勢手段３３及び複数の当接部材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、複数の付勢手段３３及び複数の当接部材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 urging means 33 and the plurality of contact members 32 is arranged at the same position in the longitudinal direction of the sliding member 11, but the present invention is not limited to this, and the plurality of urging means 33 And each of the plurality of contact members 32 may be arranged so as to be offset in the longitudinal direction of the sliding direction 11. In this case, the frictional force is adjusted in consideration of the difference in the action of the urging force due to the difference in the position in the longitudinal direction. Is possible.

摺動部材１１の横断面において、複数の付勢手段３３のうち少なくとも一対の付勢手段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又は負になるように、複数の当接部材３２と複数の付勢手段３３とが配置されている。詳細には、複数の付勢手段３３及び複数の当接部材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 the urging force acting on each of the plurality of contact members 32 from each of at least one pair of urging means 33 among the plurality of urging means 33 becomes 0 or negative. As described above, the plurality of contact members 32 and the plurality of urging means 33 are arranged. Specifically, each of the plurality of urging means 33 and the plurality of contact members 32 is arranged so as 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つの付勢手段３３を便宜上、付勢手段３３ａ、３３ｂ、３３ｃとして示し、付勢手段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それぞれベクトルａ、ベクトルｂ、ベクトルｃとして説明する。 As a specific example, the three urging means 33 shown in FIG. 5 are shown as urging means 33a, 33b, 33c for convenience, and the urging forces acting on the three contact members 32 from each of the urging means 33a, 33b, 33c. Are described as vectors a, b, and c, respectively.

一対の付勢手段３３ａ及び付勢手段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及びベクトル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。 Explaining the vector a and the vector b acting on each of the two contact members 32 from each of the pair of urging means 33a and the urging means 33b, the angle formed by the vector a and the vector b is 90 °, and the vector a The inner product of and the vector b is indicated by | vector a | · | vector b | cos90 °, and the value of the inner product is 0.

一対の付勢手段３３ａ及び付勢手段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及びベクトル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。 Explaining the vector a and the vector c acting on each of the two contact members 32 from each of the pair of urging means 33a and the urging means 33c, the angle formed by the vector a and the vector c is 180 °, and the vector a The inner product of and the vector c is indicated 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手段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又は負になる位置に付勢部材３３及び当接部材３２がそれぞれ配置されていればよい。 As described above, the angle formed by the vector of the urging force acting on each of the plurality of abutting members 32 from each of the at least the pair of urging means 33 may be 90 ° or 180 °, and the position where the inner product of the vectors becomes 0 or negative. It suffices that the urging member 33 and the abutting member 32 are respectively arranged in the.

また、摩擦発生手段３０は、複数の台座部３１と、該複数の台座部３１の外端面３４から内周面に貫通し、当接部材が摺動可能に設けられるとともに外端面３４側に付勢手段３３が設けられる貫通孔３５とを備えている。 Further, the friction generating means 30 penetrates from the plurality of pedestals 31 and the outer end surfaces 34 of the plurality of pedestals 31 to the inner peripheral surface, and the contact member is slidably provided and attached to the outer end surface 34 side. It is provided with a through hole 35 in which the force means 33 is provided.

次に付勢手段３３について説明する。
付勢手段３３は、貫通孔３５に設けられた雌ねじ部３６と、該雌ねじ部３６に螺合される雄ねじ部３７と、該雄ねじ部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。 Next, the urging means 33 will be described.
The urging means 33 is housed in the through hole 35 between the female threaded portion 36 provided in the through hole 35, the male threaded portion 37 screwed into the female threaded portion 36, and the male threaded portion 37 and the abutting member 32. The first elastic member 38 has a large repulsive force as it is compressed.

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 threaded portion 37 is screwed into the female threaded portion 36 provided in the through hole 35, the first elastic member 38 is compressed by the male threaded portion 37, and the abutting member 32 is urged. Adjustment can be done easily.

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。 The first elastic member 38 is preferably a compression spring, but is not limited to this, and other general members such as rubber and leaf springs as long as they have a large repulsive force due to compression. It doesn't matter.

次に以上に述べたダンパ１０の作用について説明する。
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。 Next, the operation of the damper 10 described above will be described.
FIG. 7A shows a state in which the damper 10 is extended, and the impact force on the damper 10 is applied to the 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 the arrow (1), the input is tilted at the tilt angle θ. As shown in FIG. 7B, the damper 10 obtains a predetermined frictional force to absorb the impact force, the sliding member 11 is housed in the storage portion 20, and the damper 10 contracts.

図８Ａに示すように、調整前の摩擦発生手段３０の横断面において、図上部の付勢手段３３及び図下部の付勢手段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、摩擦発生手段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 means 30 before adjustment, when the screwing amount of the male screw portion 36 of the urging means 33 at the upper part of the figure and the urging means 33 at the lower part of the figure is the same, the screwing amount of the male threaded portion 36 is the same. The normal force of the arrow (2) received by the abutting member 32 becomes larger than the normal force of the arrow (3) received by the abutting member 32 at the bottom of the drawing, and the friction generating means 30 cannot obtain a predetermined frictional force. ..

そこで、摩擦発生手段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、図下部の付勢手段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、摩擦発生手段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 means 30 is adjusted. As shown in FIG. 8B, the male screw portion 37 of the urging member 32 in the lower part of the drawing is screwed in as shown by the arrow (4), and the normal force received by the abutting member 32 due to the urging force of the urging means 33 in the lower part of the drawing is indicated by the arrow (4). A predetermined frictional force is obtained by increasing the frictional force as in 5) and adjusting the frictional force of the entire friction generating means 30.

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、摩擦発生手段３０によって摺動部材１１との間に摩擦力が発生するが、摩擦発生手段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手段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 accommodating portion 20, and the friction generating means 30 generates a frictional force with the sliding member 11. By pressing each of the plurality of contact members 32 that come into contact with the outer surface 17 of the sliding member 11 against the sliding member 11 by the plurality of urging means 33 provided in the storage portion 20, an urging force is applied. Friction 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と複数の付勢手段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手段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又は負になるように、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。 Further, the plurality of abutting members 32 and the plurality of urging means 33 have an urging force acting on each of the plurality of abutting members 32 from each of at least the pair of urging means 33 in the cross section of the sliding member 11. Since the inner product of the vectors is arranged so as to be 0 or negative, the urging 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手段３３の付勢力を大きくすることで摩擦力を大きくし、摩擦発生手段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。 Therefore, when the impact force on the vehicle 1 is input to the damper 10, even if the impact force is tilted in any direction with respect to the straight line L connecting both ends of the damper 10, the friction is applied. In the cross section of the moving member 11, the frictional force is increased by increasing the urging force of the urging means 33 at the position where the input escapes and the frictional force becomes small, and the friction generating means 30 as a whole becomes a predetermined frictional force. be able to. As a result, the frictional force can be adjusted to a predetermined value regardless of the mounting location of the damper 10.

さらに、付勢手段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又は付勢力を大きくしたい位置に近い位置に付勢手段３３が配置され、付勢手段３３の付勢力の調整を行い易くすることができる。 Further, since the urging means 33 is arranged so as to have rotational symmetry around the axis, the position where the urging force is desired to be increased or the position where the urging force is desired to be increased regardless of the direction in which the impact force input is tilted. The urging means 33 is arranged at a position close to the above, and the urging force of the urging means 33 can be easily adjusted.

次に第１実施形態の別態様について説明する。
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、一対の付勢手段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つの付勢手段３３が配置され、これら２つの付勢手段３３に隣接するようにさらに２つの付勢手段３３が配置されている。 Next, another aspect of the first embodiment will be described.
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 surfaces 17 of the sliding member 11 from each of the pair of urging means 33. Two urging means 33 are arranged at positions where the angle formed by the vector of the urging force acting on each of the abutting members 32 is 180 °, and two more urging means 33 are adjacent to the two urging means 33. Means 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 urging members 11 are arranged rotationally symmetrically with the sliding member 11 of the contact member 32. The contact surface is formed on an arc.

なお、図５に示す実施形態では、複数の付勢手段３３及び複数の当接部材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、複数の付勢手段３３のうち少なくとも一対の付勢手段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又は負になるように、複数の当接部材３２と複数の付勢手段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、付勢手段３３の数を３つ、４つ等にしてもよい。 In the embodiment shown in FIG. 5, each of the plurality of urging means 33 and the plurality of contact members 32 is arranged so as to have rotational symmetry around the axis of the sliding member 11, but the present invention is limited to this. Not so that the inner product of the vectors of the urging forces acting on each of the plurality of abutting members 32 from each of at least one pair of urging means 33 among the plurality of urging means 33 becomes 0 or negative. If the tangent member 32 and the plurality of urging means 33 are arranged, they may be arranged non-uniformly around the axis of the sliding member 11 without having rotational symmetry. Further, the outer shape of the sliding member 11 may be circular, and the number of urging means 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。
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、該摺動部材１１を収納する収納部２０とを備え、該摺動部材１１に収納部２０との間に摩擦力を発生させる摩擦発生手段３０を備えている。 (Second Embodiment)
Next, a second embodiment of the present invention will be described. Regarding the configuration similar to that of the first embodiment, the description thereof will be omitted and the reference numerals will be used.
The damper 10 according to the second embodiment of the present invention includes a sliding member 11 extending linearly and a storage portion 20 for accommodating the sliding member 11, and is between the sliding member 11 and the storage portion 20. Is provided with a friction generating means 30 for generating a frictional force.

摩擦発生手段３０は、収納部１１の内周面２９と、該内周面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周面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周面２９に押し付ける付勢手段とを備えている。摺動部材１１の横断面において、複数の付勢手段のうち少なくとも一対の付勢手段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又は負になるように、複数の当接部材と複数の付勢手段とが配置されている。 The friction generating means 30 includes an inner peripheral surface 29 of the accommodating portion 11, a plurality of contact members that abut on the inner peripheral surface 29, and an inner peripheral surface 29 on each of the plurality of contact members provided on the sliding member 11. It is provided with an urging means for pressing each of the plurality of contact members against the inner peripheral surface 29 by applying an urging force toward the inner peripheral surface 29. In the cross section of the sliding member 11, the inner product of the vector of the urging force acting on each of the plurality of abutting members from each of at least one pair of urging means among the plurality of urging means becomes 0 or negative. A plurality of contact members and a plurality of urging means 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、摩擦発生手段によって摺動部材１１との間に摩擦力が発生する。摩擦発生手段は、収納部２０の内周面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手段で収納部２０の内周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周面２９の間に摩擦力を発生させることができる。 According to such a configuration, when an impact force is input to the damper 10, the sliding member 11 is housed in the accommodating portion 20, and a frictional force is generated between the sliding member 11 and the sliding member 11 by the friction generating means. The friction generating means presses each of the plurality of contact members that come into contact with the inner peripheral surface 29 of the storage portion 20 against the inner peripheral surface of the storage portion 20 by a plurality of urging means provided on the sliding member 11. By applying a force, a frictional force can be generated between the contact member and the inner peripheral surface 29 from a plurality of directions.

さらに、複数の当接部材と複数の付勢手段とは、摺動部材１１の横断面において、少なくとも一対の付勢手段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又は負になるように、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。 Further, the plurality of abutting members and the plurality of urging means are the inner product of the vectors of the urging forces acting on each of the plurality of abutting members from at least each of the pair of urging means in the cross section of the sliding member 11. Since is arranged so that is 0 or negative, the urging 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、付勢手段の付勢力を大きくすることで摩擦力を大きくし、摩擦発生手段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。 Therefore, when the impact force on the vehicle 1 is input to the damper 10, the impact force slides regardless of the direction in which the impact force is tilted with respect to the straight line connecting both ends of the damper 10. At a position where the frictional force is small if it is left as it is in the cross section of the member 11, the frictional force can be increased by increasing the urging force of the urging means so that the friction generating means as a whole has a predetermined frictional force. can. As a result, the frictional force can be adjusted to a predetermined value regardless of the mounting location of the damper 10.

なお、第１実施形態では、摺動部材１１を横断面正八角形としたがこれに限定されず、三角形、四角形などでもよく、当接部材３２の当接面を平面して、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れば、多角形であればいずれであってもよい。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形状にすればよい。 In the first embodiment, the sliding member 11 has a regular octagonal cross section, but the present invention is not limited to this, and the sliding member 11 may be a triangle, a quadrangle, or the like, and the contact surface of the contact member 32 is flattened. Any polygon may be used as long as the contact member is brought into contact with each of the planes forming the outer surface 17 of the above. Further, the sliding member 11 may be a cylinder, and in this case, the contact surface of the contact member 32 may be shaped 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… 内周面
１７… 外側面
２０… 収納部（シリンダ）
２４… 内筒
２６… 第２弾性部材
３０… 摩擦発生手段
３１… 台座部
３２… 当接部材
３３、３３ａ、３３ｂ、３３ｃ… 付勢手段
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 peripheral surface 17 ... Outer side surface 20 ... Storage unit (cylinder)
24 ... Inner cylinder 26 ... Second elastic member 30 ... Friction generating means 31 ... Pedestal part 32 ... Contact members 33, 33a, 33b, 33c ... Biasing means 34 ... Outer end surface 35 ... Through hole 36 ... Female threaded part 37 ... Male screw Part 38 ... First elastic member

Claims

直線状に延びる摺動部材と、該摺動部材を収納する収納部とを備え、該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手段を備えているダンパであって、
前記摩擦発生手段は、前記摺動部材の外側面と、該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手段とを備え、
前記摺動部材の横断面において、前記複数の付勢手段のうち少なくとも一対の付勢手段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又は負になるように、前記複数の当接部材と前記複数の付勢手段とが配置されており、
前記摺動部材は筒状であり、
前記収納部の内側には、該収納部の軸線に沿って延び少なくとも前記摩擦発生手段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周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。 A damper provided with a sliding member extending linearly and a storage portion for accommodating the sliding member, and the storage portion provided with a friction generating means for generating a frictional force between the sliding member and the sliding member. ,
The friction generating means is provided on the outer surface of the sliding member, a plurality of contact members that abut on the outer surface, and the plurality of contact members provided in the storage portion on the axis of the sliding member. It is provided with a plurality of urging means for pressing each of the plurality of contact members against the sliding member by applying an urging force toward the sliding member.
In the cross section of the sliding member, the inner product of the vector of the urging force acting on each of the plurality of abutting members from each of at least one pair of urging means among the plurality of urging means becomes 0 or negative. As described above, the plurality of contact members and the plurality of urging means are arranged .
The sliding member has a tubular shape and has a tubular shape.
The inside of the storage portion extends along the axis of the storage portion and is located at least inside the storage portion where the friction generating means is arranged and slidably supports the inner peripheral surface of the sliding member. A damper characterized by having an inner cylinder.

直線状に延びる摺動部材と、該摺動部材を収納する収納部とを備え、該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手段を備えているダンパであって、
前記摩擦発生手段は、前記摺動部材の外側面と、該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手段とを備え、
前記摺動部材の横断面において、前記複数の付勢手段のうち少なくとも一対の付勢手段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又は負になるように、前記複数の当接部材と前記複数の付勢手段とが配置されており、
前記摩擦発生手段は、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、
該台座部の外端面から内周面に貫通し、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手段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。 A damper provided with a sliding member extending linearly and a storage portion for accommodating the sliding member, and the storage portion provided with a friction generating means for generating a frictional force between the sliding member and the sliding member. ,
The friction generating means is provided on the outer surface of the sliding member, a plurality of contact members that abut on the outer surface, and the plurality of contact members provided in the storage portion on the axis of the sliding member. It is provided with a plurality of urging means for pressing each of the plurality of contact members against the sliding member by applying an urging force toward the sliding member.
In the cross section of the sliding member, the inner product of the vector of the urging force acting on each of the plurality of abutting members from each of at least one pair of urging means among the plurality of urging means becomes 0 or negative. As described above, the plurality of contact members and the plurality of urging means are arranged .
The friction generating means is provided at the end of the accommodating portion on the sliding member insertion side.
A pedestal portion that protrudes radially outward from the surface of the storage portion,
It is characterized by having a through hole that penetrates from the outer end surface of the pedestal portion to the inner peripheral surface, the contact member is slidably provided, and the urging means is provided on the outer end surface side. damper.

請求項２に記載のダンパであって、
前記付勢手段は、前記貫通孔に設けられた雌ねじ部と、該雌ねじ部に螺合される雄ねじ部と、該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 2,
The urging means is housed and compressed in the through hole between the female threaded portion provided in the through hole, the male threaded portion screwed into the female threaded portion, and the male threaded portion and the contact member. A damper characterized by being a first elastic member whose repulsive force is increased by being used.

請求項１から請求項３のいずれか１項に記載のダンパであって、
前記複数の付勢手段及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を特徴とするダンパ。 The damper according to any one of claims 1 to 3.
Each of the plurality of urging means and the plurality of contact members is arranged so as to have rotational symmetry around the axis in the cross section of the sliding member.

請求項１から請求項４のいずれか１項に記載のダンパであって、
前記複数の付勢手段及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 any one of claims 1 to 4.
A damper, wherein each of the plurality of urging means and the plurality of contact members is arranged at the same position in the longitudinal direction of the sliding member.

請求項１から請求項５のいずれか１項に記載のダンパであって、
前記収納部は、筒状又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、
前記摩擦発生手段は、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 any one of claims 1 to 5.
The storage portion is a cylinder or a bottomed cylinder.
The sliding member is a square tubular piston rod.
The damper is characterized in that the friction generating means is arranged with respect to each of a plurality of planes constituting the square tubular outer surface.

請求項１から請求項６のいずれか１項に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、
該ばね座に、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 any one of claims 1 to 6, wherein the damper is
A spring seat is provided inside the storage portion.
A damper characterized in that the spring seat is provided with a second elastic member that urges the sliding member in the extension direction.

直線状に延びる摺動部材と、該摺動部材を収納する収納部とを備え、該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手段を備えているダンパであって、
前記摩擦発生手段は、前記収納部の内周面と、該内周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周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周面に押し付ける付勢手段とを備え、
前記摺動部材の横断面において、前記複数の付勢手段のうち少なくとも一対の付勢手段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又は負になるように、前記複数の当接部材と前記複数の付勢手段とが配置されていることを特徴とするダンパ。 A damper provided with a sliding member extending linearly and a storage portion for accommodating the sliding member, and the sliding member provided with a friction generating means for generating a frictional force between the sliding member and the storage portion. ,
The friction generating means includes an inner peripheral surface of the accommodating portion, a plurality of contact members that abut on the inner peripheral surface, and the like.
An urging means provided on the sliding member and pressing each of the plurality of abutting members against the inner peripheral surface by applying an urging force toward the inner peripheral surface of each of the plurality of abutting members. Prepare,
In the cross section of the sliding member, the inner product of the vector of the urging force acting on each of the plurality of abutting members from each of at least one pair of urging means among the plurality of urging means becomes 0 or negative. As described above, the damper is characterized in that the plurality of contact members and the plurality of urging means are arranged.