JP2007303570A

JP2007303570A - Fastening device

Info

Publication number: JP2007303570A
Application number: JP2006133031A
Authority: JP
Inventors: Yasuaki Omi; 泰明大見
Original assignee: Toyota Motor Corp
Current assignee: Toyota Motor Corp
Priority date: 2006-05-11
Filing date: 2006-05-11
Publication date: 2007-11-22

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fastening device for fastened members, having both advantages of friction joint and supporting face joint. <P>SOLUTION: The fastening device 10 is provided for fastening the plurality of fastened members 1, 2 partly including at least FRP members. It comprises first and second cones 11, 12 opposing each other, a flange collar 13 having a flange portion 13a and a cylinder portion 13b, the cylinder portion 13b passing through the first cone 11 to abut on the second cone 12, a spring member 14 laid between the flange portion 13a of the flange collar 13 and the first cone 11, a flange collar 15 having a bolt head portion 15a and a shaft portion 15b, the shaft portion 15b extending through the cylinder portion 13b of the flange collar 13, and a bolt 15 for applying bolt axial force to the second cone 12. The flange collar 13 and the second cone 12 can be fastened together with high axial force with the bolt 15. This results in the advantage of friction joint and the advantage of supporting face joint with the cones 11, 12. Creep is suppressed by the spring member 14. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、少なくとも一部に樹脂部材（ＦＲＰ部材である場合を含む）を含む複数の被締結部材を、摩擦接合と支面接合との両方で荷重伝達させて、締結することを可能にする、被締結部材の締結装置に関する。 The present invention makes it possible to fasten a plurality of members to be fastened including at least a part of a resin member (including a case of being an FRP member) by transmitting a load in both friction bonding and support surface bonding. The present invention relates to a fastening device for a fastened member.

ＦＲＰ（繊維強化樹脂）製被締結部材の締結、接合方法として、「摩擦接合」と「支面接合」の２種類がある。
「摩擦接合」は、図６に示すように、あるいは特開２００４−１２９６５７号公報に開示されているように、高い締め付け軸力１を確保して摩擦面２の摩擦力で外力３に耐える接合である。
「支面接合」は、図７に示すように、あるいは特開２００４−１０８４９７号公報に開示されているように、ボルトやリベット４などの側面を組み付け孔の内面５に当てることにより外力６に耐える接合である。
特開２００４−１２９６５７号公報特開２００４−１０８４９７号公報 There are two types of fastening and joining methods for FRP (fiber reinforced resin) fastening members: “friction joining” and “support surface joining”.
As shown in FIG. 6 or disclosed in Japanese Patent Application Laid-Open No. 2004-129657, “friction welding” is a joint that secures a high tightening axial force 1 and withstands an external force 3 by the frictional force of the friction surface 2. It is.
As shown in FIG. 7 or disclosed in Japanese Patent Application Laid-Open No. 2004-108497, “support surface joining” is performed by applying a side surface such as a bolt or rivet 4 to the inner surface 5 of the assembly hole. It is a durable joint.
JP 2004-129657 A JP 2004-108497 A

（イ）摩擦接合の場合、つぎの利点、問題点がある。
〔利点〕高軸力締め付けによって、ボルト、ナットの回転弛みをなくすことができる。
〔問題点〕ボルト、ナットの回転弛みをなくすためにボルト軸力を増大させると、締結部位でＦＲＰ部材にクリープが生じ、それによって締結軸力が低下し、弛みを生じる。
（ロ）支面接合の場合、つぎの利点、問題点がある。
〔利点〕ＦＲＰ部材に過大な軸力がかからないので、ＦＲＰ部材のクリープを抑えることはできる。
〔問題点〕ボルト側面と組み付け孔の内面を当てる必要があるため、組み付け孔に非常に高度な孔径精度と孔位置精度が求められる。とくに、複数のボルトで組み付ける場合、それらの全てが同時に支面接触する状態は確保し難い。 (B) In the case of friction welding, there are the following advantages and problems.
[Advantages] The bolts and nuts can be prevented from loosening by high axial force tightening.
[Problem] When the bolt axial force is increased in order to eliminate the rotational slack of the bolt and nut, creep occurs in the FRP member at the fastening portion, thereby lowering the fastening axial force and causing slack.
(B) In the case of supporting surfaces, there are the following advantages and problems.
[Advantage] Since an excessive axial force is not applied to the FRP member, creep of the FRP member can be suppressed.
[Problem] Since it is necessary to abut the bolt side surface and the inner surface of the assembly hole, very high hole diameter accuracy and hole position accuracy are required for the assembly hole. In particular, when assembling with a plurality of bolts, it is difficult to ensure that all of them are in contact with the bearing surface at the same time.

本発明の目的は、摩擦接合と支面接合の両方の利点を備え持ち、摩擦接合と支面接合の各々の問題点を抑制できる、被締結部材の締結装置（被締結部材の締結構造といってもよい）を提供することにある。 An object of the present invention is to provide a fastening device for a fastened member (such as a fastening structure of a fastened member), which has the advantages of both frictional joining and supporting surface joining, and can suppress the respective problems of friction joining and supporting surface joining. May be provided).

上記課題を解決する本発明はつぎのとおりである。
（１）少なくとも一部にＦＲＰ部材を含む複数の被締結部材を締結する締結装置であって、
互いに対向しそれぞれ中央部に取付け孔と外周部にテーパ面を有する第１、第２のコーンと、
フランジ部と筒部を有し筒部が第１のコーンを貫通して延び第２のコーンに当接するフランジカラーと、
フランジカラーのフランジ部と第１のコーンとの間に介在されたバネ部材と、
ボルト頭部と軸部を有し軸部がフランジカラーの筒部を挿通して延び、第２のコーンに螺合するかまたは第２のコーンを押さえるナットに螺合して、フランジカラーと第２のコーンにボルト軸力をかけるボルトと、
を含む締結装置。
（２）第１、第２のコーンは、被締結部材に形成されたテーパ状部を有する組み付け孔の第１、第２のテーパ面にそれぞれ密着される（１）記載の締結装置。
（３）第１、第２のコーン、フランジカラー、バネ部材、ボルトは金属製である（１）または（２）記載の締結装置。
（４）第１、第２のコーンはそれぞれのコーンの小径側部を向き合わせて同一軸線上に配置されている（１）〜（３）の何れかに記載の締結装置。
（５）バネ部材はバネ座金である（１）〜（４）の何れかに記載の締結装置。
（６）第２のコーンはフランジ付きコーンである（１）〜（５）の何れかに記載の締結装置。
（７）第２のコーンは取付け孔にネジ部を有するコーン状のナットであり、ボルトが第２のコーンのネジ部に螺合され、ボルト頭部と第２のコーンとの間にフランジカラーが定寸で挟まれ、第１のコーンはバネ部材によってフランジカラーのフランジ部から離れる方向で第２のコーン側に向かう方向に付勢され、複数の被締結部材は被締結部材のテーパ面にて第１のコーンと第２のコーンにより挟まれバネ部材の付勢力を軸方向にかけられる（１）〜（６）の何れかに記載の締結装置。
（８）第２のコーンは取付け孔にネジ部を有するコーン状のナットであり、ボルトが第２のコーンのネジ部に螺合され、複数の被締結部材がＦＲＰ部材と金属部材を含み、ボルト頭部と第２のコーンとの間にフランジカラーと被締結部材のうちの金属部材が定寸で挟まれ、第１のコーンはバネ部材によってフランジカラーのフランジ部から離れる方向で第２のコーン側に向かう方向に付勢され、被締結部材のうちの少なくともＦＲＰ部材は被締結部材のテーパ面にて第１のコーンと第２のコーンにより挟まれバネ部材の付勢力を軸方向にかけられる（１）〜（６）の何れかに記載の締結装置。
（９）第２のコーンよりもボルト頭部から遠い部位に第２のコーンを押さえるナットが設けられ、第２のコーンは貫通孔を有しており、ボルトが第２のコーンを挿通してナットに螺合され、複数の被締結部材がＦＲＰ部材と金属部材を含み、ボルト頭部と第２のコーンとの間にフランジカラーと被締結部材のうちの金属部材が定寸で挟まれ、ナットと第２のコーンとの間に被締結部材のうちの金属部材が定寸で挟まれ、第１のコーンはバネ部材によってフランジカラーのフランジ部から離れる方向で第２のコーン側に向かう方向に付勢され、被締結部材のうちの少なくともＦＲＰ部材は被締結部材のテーパ面にて第１のコーンと第２のコーンにより挟まれバネ部材の付勢力を軸方向にかけられる（１）〜（６）の何れかに記載の締結装置。 The present invention for solving the above problems is as follows.
(1) A fastening device for fastening a plurality of members to be fastened including at least part of an FRP member,
First and second cones facing each other and having a mounting hole at the center and a tapered surface at the outer periphery;
A flange collar having a flange portion and a tubular portion, the tubular portion extending through the first cone and abutting against the second cone;
A spring member interposed between the flange portion of the flange collar and the first cone;
It has a bolt head portion and a shaft portion, and the shaft portion extends through the tube portion of the flange collar, and is screwed into the second cone or screwed into a nut that holds the second cone. A bolt that applies a bolt axial force to the cone of 2;
Fastening device including
(2) The fastening device according to (1), wherein the first and second cones are in close contact with the first and second tapered surfaces of the assembly hole having a tapered portion formed in the member to be fastened.
(3) The fastening device according to (1) or (2), wherein the first and second cones, the flange collar, the spring member, and the bolt are made of metal.
(4) The fastening device according to any one of (1) to (3), wherein the first and second cones are arranged on the same axis with the small-diameter side portions of the respective cones facing each other.
(5) The fastening device according to any one of (1) to (4), wherein the spring member is a spring washer.
(6) The fastening device according to any one of (1) to (5), wherein the second cone is a flanged cone.
(7) The second cone is a cone-shaped nut having a threaded portion in the mounting hole, the bolt is screwed into the threaded portion of the second cone, and the flange collar is between the bolt head and the second cone. The first cone is urged by the spring member in the direction away from the flange portion of the flange collar toward the second cone, and the plurality of members to be fastened are brought into contact with the tapered surfaces of the members to be fastened. The fastening device according to any one of (1) to (6), wherein the spring member is sandwiched between the first cone and the second cone and the urging force of the spring member is applied in the axial direction.
(8) The second cone is a cone-shaped nut having a screw portion in the mounting hole, the bolt is screwed into the screw portion of the second cone, and the plurality of fastened members include an FRP member and a metal member, A metal member of the flange collar and the fastened member is sandwiched between the bolt head and the second cone with a fixed size, and the first cone is separated from the flange portion of the flange collar by the spring member. Energized in the direction toward the cone side, at least the FRP member of the fastened members is sandwiched between the first cone and the second cone on the tapered surface of the fastened member, and the biasing force of the spring member is applied in the axial direction. The fastening device according to any one of (1) to (6).
(9) A nut for holding the second cone is provided at a position farther from the bolt head than the second cone, the second cone has a through hole, and the bolt is inserted through the second cone. A plurality of fastened members include an FRP member and a metal member, and the flange collar and the fastened member metal member are sandwiched between the bolt head and the second cone at a fixed size. A metal member of the fastened member is sandwiched between the nut and the second cone at a fixed size, and the first cone is directed toward the second cone side in a direction away from the flange portion of the flange collar by the spring member. The at least FRP member of the fastened members is sandwiched between the first cone and the second cone on the tapered surface of the fastened member, and the biasing force of the spring member can be applied in the axial direction (1) to ( The fastening device according to any one of 6).

上記（１）〜（９）の何れかの締結装置によれば、フランジカラーが第２のコーンに当接し、ボルトがフランジカラーと第２のコーンにボルト軸力をかけるので、ボルトによるフランジカラーと第２のコーンとの高軸力締め付けを行うことができ、ボルト、ナットの回転弛みを抑制できる。その結果、摩擦接合の利点が得られる。
また、第１、第２のコーン間の被締結部材にはバネ部材によって規制された付勢力のみがかかるので、ＦＲＰ部材に過剰な軸方向負荷が加わることが抑制され、高軸力締め付けによるＦＲＰ部材のクリープとそれによる締結力弛みを避けることができる。その結果、摩擦接合の問題点を抑制できる。
また、締結装置は、第１、第２のコーンを有するので、第１、第２のコーンを被締結部材の組み付け孔のテーパ面と密着させることにより、支面接合で荷重を伝達できる。その場合、ＦＲＰ部材面に作用する軸方向力がバネ部材によって規制された付勢力のため低く、ＦＲＰ部材に過剰な軸方向負荷が加わることが抑制され、ＦＲＰ部材のクリープによるボルト締結力の弛みを抑制できる。その結果、支面接合の利点が得られる。
また、フランジカラーのフランジ部と第１のコーンとの間に介在されたバネ部材を有するので、第１のコーンはバネ部材により第２のコーン側に付勢され、これによって、第１、第２のコーンと被締結部材との間に隙間があっても自動的に吸収して、第１、第２のコーンは被締結部材に常に密着する。その結果、組み付け孔には高度な孔径精度と孔位置精度が要求されなくなり、支面接合の問題点を抑制できる。
以上により、摩擦接合と支面接合を両立させる、少なくとも一部にＦＲＰ部材を含む、被締結部材の締結装置（被締結部材の締結構造）が得られる。
上記（２）の締結装置によれば、第１、第２のコーンを被締結部材の組み付け孔のテーパ面と密着させることにより、被締結部材と第１、第２のコーン間に支面接合で荷重を伝達できる。
上記（３）の締結装置によれば、第１、第２のコーン、フランジカラー、バネ部材、ボルトは金属製である。金属製部材は、軸方向に荷重がかかっても、クリープ（へたり）を生じない。本発明ではボルトの高軸力を金属製部材で受け、被締結部材のうちＦＲＰ部材２にはバネ部材によって緩和された荷重がかかるようにしてある。
上記（４）の締結装置によれば、第１、第２のコーンはそれぞれのコーンの小径側部を向き合わせて同一軸線上に配置されているので、第１、第２のコーンのテーパ面と被締結部材の組み付け孔のテーパ面との密着性がよい。
上記（５）の締結装置によれば、バネ部材はバネ座金であるので、被締結部材にはバネ座金によって規制された付勢力のみがかかるので、ＦＲＰ部材に過剰な軸方向負荷が加わることが抑制され、ＦＲＰ部材のクリープを避けるかまたは小さくすることができる。さらに、バネ座金によって規制された付勢力によって、被締結部材間に軽い摩擦接合効果を生じさせることができる。
上記（６）の締結装置によれば、第２のコーンはフランジ付きコーンであるため、第２のコーンのフランジは被締結部材の外側板面に密着しており、第２のコーンのテーパ面が被締結部材のテーパ面に食い込んで外れなくなることを防ぐことができる。
上記（７）の締結装置によれば、フランジカラーはボルト頭部と第２のコーンの間にあるので、ボルト軸力を受けて支える役割を果たしており、締結軸力の低下は無いか、あるいはほとんど無い。これによって、ＦＲＰ部材を挟んだ構造であるにもかかわらず、高強度締め付けが可能であり、高強度締め付けによって、ボルトの回転弛みを防止することができる。
上記（８）の締結装置によれば、被締結部材の金属部材がボルト頭部とフランジカラーとの間に、固定されるので、高い締め付け力を確保して、被締結部材を摩擦接合により固定することができる。
上記（９）の締結装置によれば、ボルト頭部と第２のコーンとの間にフランジカラーと被締結部材のうちの金属部材が定寸で挟まれ、ナットと第２のコーンとの間に被締結部材のうちの金属部材が定寸で挟まれるので、高い締め付け力を確保して、被締結部材を摩擦接合により固定することができる。 According to the fastening device of any one of the above (1) to (9), the flange collar abuts on the second cone, and the bolt applies a bolt axial force to the flange collar and the second cone. And the second cone can be tightened with high axial force, and the rotational slack of the bolt and nut can be suppressed. As a result, the advantage of friction welding is obtained.
Moreover, since only the urging force restricted by the spring member is applied to the member to be fastened between the first and second cones, it is possible to suppress an excessive axial load from being applied to the FRP member, and FRP by high axial force tightening. It is possible to avoid creeping of the member and loosening of the fastening force caused thereby. As a result, the problem of friction welding can be suppressed.
Further, since the fastening device has the first and second cones, the load can be transmitted by jointing the support surfaces by bringing the first and second cones into close contact with the tapered surface of the assembly hole of the member to be fastened. In this case, the axial force acting on the surface of the FRP member is low because of the biasing force restricted by the spring member, and an excessive axial load is suppressed from being applied to the FRP member, and the bolt fastening force is loosened due to creep of the FRP member. Can be suppressed. As a result, the advantage of supporting surface joining is obtained.
In addition, since the spring member is interposed between the flange portion of the flange collar and the first cone, the first cone is biased toward the second cone by the spring member. Even if there is a gap between the second cone and the fastened member, it is automatically absorbed, and the first and second cones always adhere to the fastened member. As a result, the assembly hole is not required to have high hole diameter accuracy and hole position accuracy, and the problem of supporting surface joining can be suppressed.
As described above, the fastening device for the fastening member (fastening structure of the fastened member) including at least a part of the FRP member that achieves both the friction joining and the bearing surface joining is obtained.
According to the fastening device of (2) above, the first and second cones are brought into close contact with the tapered surface of the assembly hole of the fastened member, so that the bearing surface is joined between the fastened member and the first and second cones. Can transmit the load.
According to the fastening device of (3) above, the first and second cones, flange collars, spring members, and bolts are made of metal. The metal member does not creep even when a load is applied in the axial direction. In the present invention, the high axial force of the bolt is received by the metal member, and the FRP member 2 among the fastened members is subjected to a load that is relaxed by the spring member.
According to the fastening device of (4) above, the first and second cones are arranged on the same axis with the small-diameter side portions of the respective cones facing each other, so that the tapered surfaces of the first and second cones And the taper surface of the assembly hole of the member to be fastened are good.
According to the fastening device of (5) above, since the spring member is a spring washer, only the urging force restricted by the spring washer is applied to the member to be fastened, so that an excessive axial load is applied to the FRP member. It is suppressed and the creep of the FRP member can be avoided or reduced. Furthermore, a light friction joining effect can be produced between the fastened members by the biasing force restricted by the spring washer.
According to the fastening device of (6) above, since the second cone is a flanged cone, the flange of the second cone is in close contact with the outer plate surface of the fastened member, and the tapered surface of the second cone Can be prevented from biting into the tapered surface of the fastened member.
According to the fastening device of (7) above, since the flange collar is between the bolt head and the second cone, it plays a role of receiving and supporting the bolt axial force, and there is no decrease in the fastening axial force, or almost none. Accordingly, high-strength tightening is possible in spite of the structure in which the FRP member is sandwiched, and rotation slack of the bolt can be prevented by high-strength tightening.
According to the fastening device of (8) above, since the metal member of the fastened member is fixed between the bolt head and the flange collar, a high fastening force is secured and the fastened member is fixed by friction bonding. can do.
According to the fastening device of (9) above, the metal member of the flange collar and the fastened member is sandwiched between the bolt head and the second cone at a fixed size, and between the nut and the second cone. Since the metal member of the member to be fastened is sandwiched by a fixed size, a high fastening force can be secured and the member to be fastened can be fixed by friction bonding.

以下に、本発明の締結装置（被締結部材の締結装置、または被締結部材の締結構造といってもよい）を、図１〜図５を参照して説明する。
図１、図２は本発明の実施例１の締結装置を示し、図３は本発明の実施例２の締結装置を示し、図４は本発明の実施例３の締結装置を示す。図５は、本発明の何れの実施例にも適用可能な、本発明の締結装置が適用される対象物の一例を示したものである。ただし、適用対象は、図５の例に限るものではない。
本発明の全実施例にわたって共通する部分には本発明の全実施例にわたって同じ符号を付してある。 Below, the fastening device (it may be called the fastening device of a to-be-fastened member or the fastening structure of a to-be-fastened member) of this invention is demonstrated with reference to FIGS.
1 and 2 show a fastening device according to Embodiment 1 of the present invention, FIG. 3 shows a fastening device according to Embodiment 2 of the present invention, and FIG. 4 shows a fastening device according to Embodiment 3 of the present invention. FIG. 5 shows an example of an object to which the fastening device of the present invention is applicable, which can be applied to any of the embodiments of the present invention. However, the application target is not limited to the example of FIG.
Portions common to all the embodiments of the present invention are denoted by the same reference numerals throughout all the embodiments of the present invention.

まず、本発明の全実施例にわたって共通する部分の構成と作用、効果を、図１、図２、図５を参照して説明する。
本発明の締結装置１０は、少なくとも一部にＦＲＰ（繊維強化樹脂）部材を含む複数（たとえば、２個、ただし、２個に限るものではない）の被締結部材１、２を締結する締結装置であり、摩擦接合と支面接合を両立させた、被締結部材１、２の締結装置１０である。 First, the configuration, operation, and effects of portions common to all the embodiments of the present invention will be described with reference to FIGS. 1, 2, and 5. FIG.
A fastening device 10 according to the present invention fastens a plurality of (for example, two, but not limited to two) members to be fastened 1 and 2 including at least a part of an FRP (fiber reinforced resin) member. It is the fastening device 10 of the to-be-fastened members 1 and 2 which made friction joining and bearing surface joining compatible.

本発明の締結装置１０が適用され得る対象の一つに、たとえば、図５に示すような、スペースフレーム構造車体における、ＦＲＰ製ピラーを含む複数（たとえば、２個、ただし、２個に限るものではない）のフレーム部材４を結合金具３を用いて組立てる場合の、フレーム部材４と結合金具３の継手部の締結装置がある。ただし、適用対象はそれに限るものではない。
図５では、フレーム部材４の継手部近傍部が被締結部材２であり、結合金具３の継手部近傍部が被締結部材１である。
複数の被締結部材１、２の少なくとも一部（たとえば、被締結部材２）が、繊維強化樹脂（ＦＲＰ）製である。図５では被締結部材１、２のうち被締結部材２が繊維強化樹脂製である。被締結部材１は、金属製の場合を示したが、ＦＲＰ製でもよいし、あるいは、他の材料製であってもよい。ＦＲＰ製の被締結部材２（または１、２）を、単にボルトとナットで締め付けると、ボルト頭部とナットとで挟まれた被締結部材部分が圧縮力でクリープして、締結力が低下してボルトが回転弛みを生じるおそれがある。これに対して、本発明は、高ボルト軸力を維持したまま、被締結部材のクリープを生じさせることがない、あるいは、ほとんどクリープを生じさせることがない、締結装置１０を提供するものである。 One of the objects to which the fastening device 10 of the present invention can be applied is, for example, a plurality (for example, two, but limited to two) including FRP pillars in a space frame structure vehicle body as shown in FIG. There is a fastening device for a joint portion of the frame member 4 and the coupling bracket 3 when the frame member 4 is assembled using the coupling bracket 3. However, the scope of application is not limited to this.
In FIG. 5, the vicinity of the joint portion of the frame member 4 is the fastened member 2, and the vicinity of the joint portion of the fitting 3 is the fastened member 1.
At least a part of the plurality of fastened members 1 and 2 (for example, the fastened member 2) is made of fiber reinforced resin (FRP). In FIG. 5, the to-be-fastened member 2 is made of fiber reinforced resin among the to-be-fastened members 1 and 2. Although the member 1 to be fastened is made of metal, it may be made of FRP or may be made of other materials. When the fastened member 2 (or 1, 2) made of FRP is simply tightened with a bolt and a nut, the fastened member portion sandwiched between the bolt head and the nut is creeped by a compressive force, and the fastening force is reduced. There is a risk that the bolt will loosen. On the other hand, the present invention provides a fastening device 10 that does not cause creep of a fastened member while maintaining a high bolt axial force, or hardly causes creep. .

本発明の締結装置１０は、図１、図２に示すように、少なくとも一部にＦＲＰ部材を含む複数の被締結部材１、２と、被締結部材１、２を締結する締結装置１０と、を有する被締結部材の締結構造に含まれる締結装置である。
被締結部材１、２には、テーパ状部を有する組み付け孔１ａ、２ａが形成されており、組み付け孔１ａ、２ａは内周テーパ面１ｂ、２ｂを有する。
被締結部材１、２は内周テーパ面１ｂ、２ｂは、それぞれのテーパ面の小径側部を向き合わせて同一軸線上に配置されている。
図２では、被締結部材２がＦＲＰ製であり、被締結部材１がＦＲＰ製または金属製である。 As shown in FIGS. 1 and 2, the fastening device 10 of the present invention includes a plurality of fastened members 1 and 2 that include at least a part of an FRP member, and a fastening device 10 that fastens the fastened members 1 and 2. It is the fastening device contained in the fastening structure of the to-be-fastened member which has these.
The fastened members 1 and 2 are formed with assembly holes 1a and 2a having tapered portions, and the assembly holes 1a and 2a have inner circumferential tapered surfaces 1b and 2b.
The to-be-fastened members 1 and 2 are arranged on the same axis with the inner peripheral tapered surfaces 1b and 2b facing the small diameter side portions of the respective tapered surfaces.
In FIG. 2, the fastened member 2 is made of FRP, and the fastened member 1 is made of FRP or metal.

本発明の締結装置１０は、図１、図２に示すように、第１および第２のコーン１１、１２、フランジカラー１３、バネ部材１４、ボルト１５を主要構成部品としている。第１および第２のコーン１１、１２は、それぞれ中央部に取付け孔と外周部にテーパ面を有しコーン状部分が互いに対向するように配置される。フランジカラー１３は、フランジ部１３ａと筒部１３ｂとを有し、筒部１３ｂが第１のコーン１１を貫通して延び、第２のコーン１２に当接する。バネ部材１４は、フランジカラー１３のフランジ部１３ａと第１のコーン１１との間に介在されたる。ボルト１５は、ボルト頭部１５ａとボルト軸部１５ｂとを有し、軸部１５ｂがフランジカラー１３の筒部１３ｂを挿通して延び、第２のコーン１２に螺合するかまたは第２のコーン１２を押さえるナット１６に螺合して、フランジカラー１３と第２のコーン１２にボルト軸力をかける。 As shown in FIGS. 1 and 2, the fastening device 10 of the present invention includes first and second cones 11 and 12, a flange collar 13, a spring member 14, and a bolt 15 as main components. The first and second cones 11 and 12 each have an attachment hole at the center and a tapered surface at the outer periphery, and are arranged so that the cone-shaped portions face each other. The flange collar 13 has a flange portion 13 a and a tube portion 13 b, and the tube portion 13 b extends through the first cone 11 and abuts against the second cone 12. The spring member 14 is interposed between the flange portion 13 a of the flange collar 13 and the first cone 11. The bolt 15 has a bolt head portion 15a and a bolt shaft portion 15b. The shaft portion 15b extends through the tube portion 13b of the flange collar 13, and is screwed into the second cone 12 or the second cone. The nut 16 that presses the screw 12 is screwed to apply a bolt axial force to the flange collar 13 and the second cone 12.

第１のコーン１１は第２のコーン１２に対して軸方向に可動な可動コーンである。第２のコーン１２はボルト１５に対して、相対的に軸方向に静止した、一定の位置をとるコーンである。
第１、第２のコーン１１、１２は中央に軸方向に延びる中央孔１１ａ、１２ａを有し、外周に外周テーパ面１１ｂ、１２ｂを有する。第１のコーン１１の中央孔１１ａの内周面とフランジカラー１３の筒部１３ｂの外周面との間は、フランジカラー１３に対する第１のコーン１１のスライドは許すが、半径方向のがたつきはほとんど生じずに、ボルト軸方向と直交する方向の支面接合を可能にする、摺動嵌合となっている。
第１、第２のコーン１１、１２はそれぞれのコーンの小径側部を向き合わせて同一軸線上に配置されている。
第１、第２のコーン１１、１２は、被締結部材１、２に形成されたテーパ状部を有する組み付け孔１ａ、２ａの第１、第２の内周テーパ面１ｂ、２ｂに、外周テーパ面１１ｂ、１２ｂにて、それぞれ、密着される。 The first cone 11 is a movable cone that is movable in the axial direction with respect to the second cone 12. The second cone 12 is a cone that is stationary in the axial direction relative to the bolt 15 and takes a certain position.
The first and second cones 11 and 12 have central holes 11a and 12a extending in the axial direction in the center, and outer peripheral tapered surfaces 11b and 12b on the outer periphery. Between the inner peripheral surface of the central hole 11a of the first cone 11 and the outer peripheral surface of the cylindrical portion 13b of the flange collar 13, sliding of the first cone 11 with respect to the flange collar 13 is allowed, but the radial rattling is performed. Is a sliding fit that enables support surface joining in a direction perpendicular to the bolt axis direction.
The first and second cones 11 and 12 are arranged on the same axis with the small-diameter side portions of the respective cones facing each other.
The first and second cones 11 and 12 have outer peripheral tapers on the first and second inner peripheral tapered surfaces 1b and 2b of the assembly holes 1a and 2a having tapered portions formed in the fastened members 1 and 2, respectively. The surfaces 11b and 12b are in close contact with each other.

第１、第２のコーン１１、１２、フランジカラー１３、バネ部材１４、ボルト１５は金属製である。金属製部材は、軸方向に荷重がかかっても、クリープ（へたり）がほとんど生じない。本発明ではボルト１５の高軸力を金属製部材で受け、被締結部材１、２のうちＦＲＰ部材２にはバネ部材１４によって緩和された荷重がかかるようにしてある。 The first and second cones 11 and 12, the flange collar 13, the spring member 14, and the bolt 15 are made of metal. Even if a metal member is loaded in the axial direction, creep (sagging) hardly occurs. In the present invention, the high axial force of the bolt 15 is received by a metal member, and the FRP member 2 of the members 1 and 2 to be fastened is subjected to a load relaxed by the spring member 14.

バネ部材１４は、たとえば、バネ座金（金属製）である。ただし、ボルト軸力を受けた時に、軸方向のバネ付勢力を生じるものであれば、バネ座金に限るものではない。バネ部材１４は、フランジカラー１３のフランジ部１３ａと第１のコーン１１との間に介在されるので、第１のコーン１１を第２のコーン１２側にバネ付勢する。 The spring member 14 is, for example, a spring washer (made of metal). However, it is not limited to the spring washer as long as it generates an axial spring biasing force when it receives the bolt axial force. Since the spring member 14 is interposed between the flange portion 13a of the flange collar 13 and the first cone 11, the first cone 11 is spring-biased toward the second cone 12.

第２のコーン１２はフランジ付きコーンであり、第２のコーン１２のフランジ１２ｃは被締結部材２の外側板面に密着しており、第２のコーン１２のテーパ面１２ｂが被締結部材２のテーパ面２ｂに食い込んで外れなくなることを防いでいる。ただし、第２のコーン１２はフランジ１２ｃを持たなくてもよい。また、第２のコーン１２はネジ部１２ｄを有するコーン状のナット（コーンナット）であってもよく、その場合は、ボルト１５が軸部１５ｂに形成されたネジ部１５ｃで第２のコーン１２に螺合されてもよい。 The second cone 12 is a flanged cone, the flange 12 c of the second cone 12 is in close contact with the outer plate surface of the fastened member 2, and the tapered surface 12 b of the second cone 12 is of the fastened member 2. It prevents the taper surface 2b from getting into the taper surface 2b. However, the second cone 12 may not have the flange 12c. The second cone 12 may be a cone-shaped nut (cone nut) having a screw portion 12d. In this case, the second cone 12 is formed by a screw portion 15c in which a bolt 15 is formed on the shaft portion 15b. May be screwed together.

つぎに、本発明の全実施例にわたって共通する部分の作用、効果を説明する。
フランジカラー１３、第２のコーン１２、ボルト１５が金属製であり、フランジカラー１３の筒部１３ｂが第２のコーン１２に当接し、フランジカラー１３と第２のコーン１２にボルト軸力を受けるので、ボルト軸力を受ける部材がすべて金属製となる。そのため、ボルト１５により、フランジカラー１３と第２のコーン１２とを高軸力締め付けすることができ、ボルト１５の回転弛みを抑制できる。その結果、高軸力締め付けとそれによるボルト弛み防止という、摩擦接合の利点が得られる。また、ボルト１５にかかるバネ部材１４の反力は、ボルト１５のゆるみ止めとしても働く。 Next, operations and effects of portions common to all the embodiments of the present invention will be described.
The flange collar 13, the second cone 12, and the bolt 15 are made of metal, the cylindrical portion 13 b of the flange collar 13 abuts on the second cone 12, and receives a bolt axial force on the flange collar 13 and the second cone 12. Therefore, all the members that receive the bolt axial force are made of metal. Therefore, the flange collar 13 and the second cone 12 can be fastened by the bolt 15 with high axial force, and the rotational slack of the bolt 15 can be suppressed. As a result, the advantage of friction joining, that is, high axial force tightening and prevention of bolt loosening due thereto, can be obtained. Further, the reaction force of the spring member 14 applied to the bolt 15 also works as a bolt 15 to prevent the bolt 15 from loosening.

また、第１、第２のコーン１１、１２間の被締結部材１、２部分には、バネ部材１４によって規制された（緩和された）付勢力のみがかかるので、ＦＲＰ部材２（被締結部材１もＦＲＰ製の場合は１および２）に過剰な軸方向負荷が加わることが抑制され、高軸力締め付けによるＦＲＰ部材２（被締結部材１もＦＲＰ製の場合は１および２）のクリープとそれによるボルト締結力の弛みを避けることができる。その結果、ＦＲＰ部材の場合は高軸力をかけれないのでボルトの回転弛みが生じるおそれがあるという、摩擦接合の問題点を抑制できる。 Moreover, since only the urging | biasing force regulated (relaxed) by the spring member 14 is applied to the to-be-fastened members 1 and 2 between the 1st, 2nd cones 11 and 12, FRP member 2 (to-be-fastened member) When 1 is also made of FRP, excessive axial load is suppressed to 1 and 2), and the FRP member 2 (1 and 2 when the fastened member 1 is also made of FRP) is clamped by high axial force tightening. Accordingly, loosening of the bolt fastening force can be avoided. As a result, in the case of the FRP member, since a high axial force cannot be applied, it is possible to suppress the problem of friction welding that there is a possibility that rotation looseness of the bolt may occur.

また、締結装置１０は、第１、第２のコーン１１、１２を有するので、第１、第２のコーン１１、１２を被締結部材１、２の組み付け孔１ａ、２ａの内周テーパ面１ｂ、２ｂと密着させることにより、被締結部材１、２と第１、第２のコーン１１、１２間に支面接合で荷重を伝達できる。被締結部材１から第１のコーン１１に伝達された荷重は、第１のコーン１１とフランジカラー１３の筒部１３ｂとの間に支面接合で荷重が伝達される。フランジカラー１３に伝達された荷重は、フランジカラー１３と第２のコーン１２との間の高軸力当接における摩擦によって第２のコーン１２に伝達される。その結果、被締結部材１、２間に支面接合で一部の荷重が伝達される。
また、被締結部材１、２は面同士が接触しバネ部材１４による規制された荷重が働くので、一部の荷重は軽い摩擦接合によって、被締結部材１、２間に伝達される。その場合、ＦＲＰ部材面に作用する軸方向力はバネ部材１４によって規制された付勢力のため低く、ＦＲＰ部材２（ＦＲＰ部材１もＦＲＰ製の場合は１および２）に過剰な軸方向負荷が加わることが抑制され、ＦＲＰ部材２（ＦＲＰ部材１もＦＲＰ製の場合は１および２）のクリープによるボルト締結力の弛みを抑制できる。その結果、軸力が規制されてクリープを抑えることができるという支面接合の利点が得られる。 Moreover, since the fastening device 10 has the 1st, 2nd cones 11 and 12, the 1st and 2nd cones 11 and 12 are the inner peripheral taper surfaces 1b of the assembly holes 1a and 2a of the members 1 and 2 to be fastened. 2b, the load can be transmitted between the members 1 and 2 to be fastened and the first and second cones 11 and 12 by jointing the bearing surfaces. The load transmitted from the member 1 to be fastened to the first cone 11 is transmitted between the first cone 11 and the cylindrical portion 13b of the flange collar 13 by bearing surface joining. The load transmitted to the flange collar 13 is transmitted to the second cone 12 by friction in high axial force contact between the flange collar 13 and the second cone 12. As a result, a part of the load is transmitted between the fastened members 1 and 2 by the bearing surface joining.
Further, since the surfaces of the fastened members 1 and 2 are in contact with each other and a regulated load is applied by the spring member 14, a part of the load is transmitted between the fastened members 1 and 2 by light frictional bonding. In this case, the axial force acting on the FRP member surface is low because of the biasing force restricted by the spring member 14, and an excessive axial load is applied to the FRP member 2 (1 and 2 when the FRP member 1 is also made of FRP). Addition is suppressed, and loosening of the bolt fastening force due to creep of the FRP member 2 (1 and 2 when the FRP member 1 is also made of FRP) can be suppressed. As a result, it is possible to obtain the advantage of supporting surface bonding that the axial force is restricted and creep can be suppressed.

また、締結装置１０は、フランジカラー１３のフランジ部１３ａと第１のコーン１１との間に介在されたバネ部材１４を有するので、第１のコーン１１はバネ部材１４により第２のコーン１２側に付勢され、これによって、第１、第２のコーン１１、１２と被締結部材１、２との間に軸方向に隙間があっても自動的に吸収されて、第１、第２のコーン１１、１２は被締結部材１、２に常に密着する。その結果、被締結部材１、２の組み付け孔１ａ、２ａには高度な孔径精度と孔位置精度が要求されなくなり、精度出しが困難という支面接合の問題点を抑制できる。
以上により、摩擦接合と支面接合を両立させる、少なくとも一部にＦＲＰ部材を含む、被締結部材１、２の締結装置１０（被締結部材の締結構造）が得られる。 Moreover, since the fastening device 10 has the spring member 14 interposed between the flange portion 13a of the flange collar 13 and the first cone 11, the first cone 11 is moved to the second cone 12 side by the spring member 14. As a result, even if there is a gap in the axial direction between the first and second cones 11 and 12 and the fastened members 1 and 2, the first and second cones are automatically absorbed. The cones 11 and 12 are always in close contact with the fastened members 1 and 2. As a result, the assembly holes 1a and 2a of the fastened members 1 and 2 are not required to have high hole diameter accuracy and hole position accuracy, and it is possible to suppress the problem of support surface joining that it is difficult to obtain accuracy.
As described above, the fastening device 10 (fastening structure of the fastened member) of the fastened members 1 and 2 including at least a part of the FRP member that achieves both the friction joining and the bearing surface joining is obtained.

つぎに、本発明の各実施例に特有な部分を説明する。
〔実施例１〕−−−図１、図２
本発明の実施例１の締結装置１０（被締結部材の締結構造）では、第２の被締結部材２がＦＲＰ部材で、第１の被締結部材１がＦＲＰ部材または金属製部材である。
また、第２のコーン１２はネジ部１２ｄを有するコーン状のナット（コーンナット）であり、ボルト１５がボルトネジ部１５ｃで第２のコーン１２のネジ部１２ｄに螺合される。ボルト頭部１５ａと第２のコーン１２との間に金属製フランジカラー１３が定寸（一定寸法）で挟まれる。第１のコーン１１は、バネ部材１４によってフランジカラー１３のフランジ部１３ａから離れる方向で第２のコーン１２側に向かう方向に付勢される。複数の被締結部材１１、１２は、被締結部材１１、１２の外周テーパ面１１ｂ、１２ｂにて、第１のコーン１１と第２のコーン１２により挟まれ、バネ部材１４の付勢力を軸方向にかけられる。 Next, parts specific to each embodiment of the present invention will be described.
[Example 1] --- FIGS. 1 and 2
In the fastening device 10 (fastening structure of a fastened member) according to the first embodiment of the present invention, the second fastened member 2 is an FRP member, and the first fastened member 1 is an FRP member or a metal member.
The second cone 12 is a cone-shaped nut (cone nut) having a screw portion 12d, and the bolt 15 is screwed to the screw portion 12d of the second cone 12 by the bolt screw portion 15c. A metal flange collar 13 is sandwiched between the bolt head portion 15a and the second cone 12 with a fixed size (fixed size). The first cone 11 is urged by the spring member 14 in the direction away from the flange portion 13a of the flange collar 13 toward the second cone 12 side. The plurality of fastened members 11 and 12 are sandwiched between the first cone 11 and the second cone 12 at the outer peripheral tapered surfaces 11b and 12b of the fastened members 11 and 12, and the biasing force of the spring member 14 is axially applied. Be put on.

実施例１では、第１、第２のコーン１１、１２は第１の被締結部材１、２の孔の内周テーパ面１ｂ、２ｂと嵌合し、コーン１１、１２と内周テーパ面１ｂ、２ｂとの接触面を介して面内方向に作用する外力を伝達する。すなわち、支面接合の機能を果たす。 In the first embodiment, the first and second cones 11 and 12 are fitted to the inner circumferential tapered surfaces 1b and 2b of the holes of the first fastened members 1 and 2, and the cones 11 and 12 and the inner circumferential tapered surface 1b. The external force acting in the in-plane direction is transmitted through the contact surface with 2b. That is, it fulfills the function of supporting the support surface.

可動コーンである第１のコーン１１は、バネ部材１４によって第２のコーン１２側に押される。これによって、第１、第２のコーン１１、１２と被締結部材１１、１２のテーパ面における密着性を高めて、支面接合を効果的なものにしている。
また、バネ部材１４による反力は、被締結部材１１、１２同士を圧着する荷重として作用している。これにより、被締結部材１１、１２の間には軽い摩擦接合も作用する。ただし、バネ部材１４により生じる圧着力は、被締結部材１１、１２にクリープを生じないかあるいはほとんど生じない荷重に設定する。圧着力の制限は、バネ部材１４の締め代で調整する。具体的にはフランジカラー１３の筒部１３ｂの長さの調整または選定により可能である。 The first cone 11 that is a movable cone is pushed toward the second cone 12 by the spring member 14. Thereby, the adhesiveness in the taper surface of the 1st, 2nd cones 11 and 12 and the to-be-fastened members 11 and 12 is improved, and support surface joining is made effective.
The reaction force by the spring member 14 acts as a load for crimping the members to be fastened 11 and 12 together. Thereby, a light friction joining also acts between the to-be-fastened members 11 and 12. However, the crimping force generated by the spring member 14 is set to a load that does not cause creep or hardly occurs in the fastened members 11 and 12. The limitation of the crimping force is adjusted by the tightening allowance of the spring member 14. Specifically, it is possible by adjusting or selecting the length of the cylindrical portion 13b of the flange collar 13.

上記の支面接合の成立には、可動コーンである第１のコーン１１とフランジカラー１３との間にガタ（隙間）が無いか、または小さいことが必要である。したがって、第１のコーン１１の内径とフランジカラー１３の外径の嵌め合いはガタが無く、かつ摺動可能な、精度設定が必要である。この設定は被締結部材１１、１２と締結装置１０との間の精度設定ではなく、締結装置１０内の精度設定のため、比較的容易に行うことができる。 In order to establish the above-mentioned support surface joining, it is necessary that there is no backlash (gap) between the first cone 11 which is a movable cone and the flange collar 13 or a small gap. Therefore, the fitting of the inner diameter of the first cone 11 and the outer diameter of the flange collar 13 does not have backlash, and it is necessary to set the accuracy so that it can slide. This setting is not an accuracy setting between the fastening members 11, 12 and the fastening device 10, but can be performed relatively easily because of an accuracy setting in the fastening device 10.

一方、フランジカラー１３はボルト頭部１５ａと第２のコーン１２の間にあり、ボルト軸力を受けて支える役割を果たしている。フランジカラー１３と第２のコーン１２とは金属面当接しているから、締結軸力の低下は無いか、あるいはほとんど無い。これによって、ＦＲＰ部材を挟んだ構造であるにもかかわらず、高強度締め付けが可能であり、高強度締め付けによって、ボルト１５の回転弛みを防止することができる。 On the other hand, the flange collar 13 is located between the bolt head 15a and the second cone 12, and plays a role of receiving and supporting the bolt axial force. Since the flange collar 13 and the second cone 12 are in contact with the metal surface, the fastening axial force does not decrease or hardly occurs. As a result, high-strength tightening is possible despite the structure with the FRP member sandwiched therebetween, and rotational loosening of the bolt 15 can be prevented by high-strength tightening.

〔実施例２〕−−−図３
本発明の実施例２の締結装置１０（被締結部材の締結構造）では、第２の被締結部材２がＦＲＰ部材で、第１の被締結部材１が金属製部材である。
また、第２のコーン１２はネジ部１２ｄを有するコーン状のナット（コーンナット）であり、ボルト１５が軸部１５ｂに形成したネジ部１５ｃで第２のコーン１２のネジ部１２ｄに螺合される。複数の被締結部材１、２がＦＲＰ部材２と金属部材１を含み、ボルト頭部１５ａと第２のコーン１２との間にフランジカラー１３の筒部１３ｂと被締結部材のうちの金属部材１が定寸で挟まれる。第１のコーン１１はバネ部材１４によってフランジカラー１３のフランジ部１３ａから離れる方向で第２のコーン１２側に向かう方向に付勢される。被締結部材のうちの少なくともＦＲＰ部材２は、被締結部材２のテーパ面２ｂ、２ｂにて第１のコーン１１と第２のコーン１２により挟まれ、バネ部材１４の付勢力を軸方向にかけられる。 [Example 2] --- FIG.
In the fastening device 10 (fastening structure of fastened members) of the second embodiment of the present invention, the second fastened member 2 is an FRP member, and the first fastened member 1 is a metal member.
The second cone 12 is a cone-shaped nut (cone nut) having a screw portion 12d, and the bolt 15 is screwed to the screw portion 12d of the second cone 12 by a screw portion 15c formed on the shaft portion 15b. The The plurality of fastened members 1 and 2 include the FRP member 2 and the metal member 1, and the cylindrical member 13 b of the flange collar 13 and the metal member 1 among the fastened members between the bolt head 15 a and the second cone 12. Is sandwiched at a fixed size. The first cone 11 is urged by the spring member 14 in the direction away from the flange portion 13a of the flange collar 13 toward the second cone 12 side. At least the FRP member 2 of the fastened members is sandwiched between the first cone 11 and the second cone 12 by the tapered surfaces 2b and 2b of the fastened member 2, and the biasing force of the spring member 14 is applied in the axial direction. .

実施例２では、フランジカラー１３のフランジ部１３ａの外側面に被締結部材１が接するように、被締結部材１がボルト頭部１５ａとフランジカラー１３との間に、固定される。この締結構造では、高い締め付け力を確保して、被締結部材１を摩擦接合により固定する。
フランジカラー１３の内径はボルト径に対して大きく設定することができる。フランジカラー１３は、第２のコーン１２との接触面から外れない範囲において、位置ずれを許容できる。これは、フランジカラー１３の締め付けに摩擦接合を併用していることによるものである。すなわち、第１の被締結部材１の孔位置は、高精度を求めなくても済むという利点が得られる。これによって、支面接合の問題点である高度な孔径精度、孔位置精度の要求を緩和することができる。 In the second embodiment, the fastened member 1 is fixed between the bolt head 15 a and the flange collar 13 so that the fastened member 1 contacts the outer surface of the flange portion 13 a of the flange collar 13. In this fastening structure, a high fastening force is secured and the fastened member 1 is fixed by friction bonding.
The inner diameter of the flange collar 13 can be set larger than the bolt diameter. The flange collar 13 can tolerate displacement within a range that does not deviate from the contact surface with the second cone 12. This is because the frictional joint is used for tightening the flange collar 13 together. That is, there is an advantage that the hole position of the first member 1 to be fastened does not require high accuracy. This can alleviate the demands for high hole diameter accuracy and hole position accuracy, which are problems of support surface bonding.

〔実施例３〕−−−図４
本発明の実施例３の締結装置１０（被締結部材の締結構造）では、第２の被締結部材２がＦＲＰ部材で、第１の被締結部材１が金属製部材である。
第２のコーン１２よりもボルト頭部１５ａから遠い部位にナット１６が設けられ、第２のコーン１２はネジ無しの貫通孔１２ａを有しており、ボルト１５が第２のコーン１２を挿通してナット１６に螺合している。複数の被締結部材１、２がＦＲＰ部材２と金属部材１を含んでいる。ボルト頭部１５ａと第２のコーン１２との間にフランジカラー１３と被締結部材のうちの金属部材１が定寸で挟まれ、ナット１６と第２のコーン１２との間に被締結部材のうちの金属部材１が定寸で挟まれる。第１のコーン１１はバネ部材１４によってフランジカラー１３のフランジ部１３ａから離れる方向で第２のコーン１２側に向かう方向に付勢されている。被締結部材のうちの少なくともＦＲＰ部材２は被締結部材のテーパ面２ｂにて第１のコーン１１と第２のコーン１２により挟まれ、バネ部材１４の付勢力を軸方向にかけられる。 [Example 3] FIG. 4
In the fastening device 10 (fastening structure of a fastened member) according to the third embodiment of the present invention, the second fastened member 2 is an FRP member, and the first fastened member 1 is a metal member.
A nut 16 is provided at a position farther from the bolt head 15 a than the second cone 12, the second cone 12 has a threaded through hole 12 a, and the bolt 15 passes through the second cone 12. Screwed into the nut 16. The plurality of fastened members 1 and 2 include the FRP member 2 and the metal member 1. Between the bolt head 15 a and the second cone 12, the flange collar 13 and the metal member 1 among the members to be fastened are sandwiched by a fixed size, and the member to be fastened is sandwiched between the nut 16 and the second cone 12. Our metal member 1 is sandwiched by a fixed size. The first cone 11 is biased by the spring member 14 in a direction away from the flange portion 13a of the flange collar 13 toward the second cone 12 side. At least the FRP member 2 of the fastened members is sandwiched between the first cone 11 and the second cone 12 by the tapered surface 2b of the fastened member, and the biasing force of the spring member 14 is applied in the axial direction.

実施例３では、第２のコーン１２には雌ネジを形成せず、ボルト１５が孔１２ａを貫通している。一方の被締結部材１である金属製のフレーム締結金具を第２のコーン２の両外側に配置し（両外側の被締結部材１は互いにつながっている）、ボルト１５による高い締結軸力で締め付けることができる。 In the third embodiment, the second cone 12 is not formed with a female screw, and the bolt 15 penetrates the hole 12a. Metal frame fastening metal fittings that are one of the fastened members 1 are disposed on both outer sides of the second cone 2 (the fastened member 1 on both outer sides are connected to each other) and fastened with a high fastening axial force by bolts 15. be able to.

本発明の実施例１の締結装置とそれによって締結される被締結部材の分解斜視図である。It is a disassembled perspective view of the fastening apparatus of Example 1 of this invention and the to-be-fastened member fastened by it. 本発明の実施例１の締結装置とそれによって締結された被締結部材の断面図である。It is sectional drawing of the fastening apparatus of Example 1 of this invention and the to-be-fastened member fastened by it. 本発明の実施例２の締結装置とそれによって締結された被締結部材の断面図である。It is sectional drawing of the to-be-fastened member fastened by it with the fastening apparatus of Example 2 of this invention. 本発明の実施例３の締結装置とそれによって締結された被締結部材の断面図である。It is sectional drawing of the fastening apparatus of Example 3 of this invention and the to-be-fastened member fastened by it. 本発明の締結装置の適用対象の斜視図である。It is a perspective view of an application object of a fastening device of the present invention. 摩擦接合の原理を示す、従来の締結装置とそれによって締結された被締結部材の断面図である。It is sectional drawing of the to-be-fastened member fastened by the conventional fastening device which shows the principle of friction joining. 支面接合の原理を示す、従来の締結装置とそれによって締結された被締結部材の断面図である。It is sectional drawing of the to-be-fastened member fastened by the conventional fastening device which shows the principle of supporting surface joining.

Explanation of symbols

１被締結部材
１ａ組み付け孔
内周１ｂテーパ面
２被締結部材
２ａ組み付け孔
内周２ｂテーパ面
３結合金具
４フレーム部材
１０締結装置
１１第１のコーン
１１ａ中央孔
１１ｂ外周テーパ面
１２第２のコーン
１２ａ中央孔
１２ｂ外周テーパ面
１２ｃフランジ
１２ｄネジ部
１３フランジカラー
１３ａフランジ部
１３ｂ筒部
１４バネ部材
１５ボルト
１５ａボルト頭部
１５ｂ軸部
１５ｃネジ部（ネジ）
１６ナット DESCRIPTION OF SYMBOLS 1 Fastened member 1a Assembly hole inner periphery 1b Tapered surface 2 Fastened member 2a Assembly hole inner periphery 2b Tapered surface 3 Coupling metal 4 Frame member 10 Fastening device 11 1st cone 11a Center hole 11b Outer periphery taper surface 12 2nd cone 12a Center hole 12b Peripheral taper surface 12c Flange 12d Screw part 13 Flange collar 13a Flange part 13b Tube part 14 Spring member 15 Bolt 15a Bolt head 15b Shaft part 15c Screw part (screw)
16 nuts

Claims

A fastening device for fastening a plurality of fastened members including at least a part of an FRP member,
First and second cones facing each other and having a mounting hole in the center and a tapered surface on the outer periphery;
A flange collar having a flange portion and a tubular portion, the tubular portion extending through the first cone and abutting against the second cone;
A spring member interposed between the flange portion of the flange collar and the first cone;
It has a bolt head portion and a shaft portion, and the shaft portion extends through the tube portion of the flange collar, and is screwed into the second cone or screwed into a nut that holds the second cone. A bolt that applies a bolt axial force to the cone of 2;
Fastening device including

The fastening device according to claim 1, wherein the first and second cones are in close contact with first and second tapered surfaces of a hole having a tapered portion formed in the member to be fastened.

The fastening device according to claim 1 or 2, wherein the first and second cones, flange collars, spring members, and bolts are made of metal.

The fastening device according to any one of claims 1 to 3, wherein the first and second cones are arranged on the same axis with the small-diameter side portions of the respective cones facing each other.

The fastening device according to any one of claims 1 to 4, wherein the spring member is a spring washer.

The fastening device according to any one of claims 1 to 5, wherein the second cone is a flanged cone.

The second cone is a cone-shaped nut having a threaded portion in the mounting hole, the bolt is screwed into the threaded portion of the second cone, and the flange collar is fixed between the bolt head and the second cone. The first cone is urged by the spring member in the direction away from the flange portion of the flange collar toward the second cone, and the plurality of members to be fastened are first tapered by the tapered surfaces of the members to be fastened. The fastening device according to any one of claims 1 to 6, wherein the urging force of the spring member is applied in an axial direction between the second cone and the second cone.

The second cone is a cone-shaped nut having a screw portion in the mounting hole, the bolt is screwed into the screw portion of the second cone, the plurality of fastened members include an FRP member and a metal member, and the bolt head The metal member of the flange collar and the fastened member is sandwiched between the second cone and the second cone, and the first cone is moved away from the flange portion of the flange collar by the spring member toward the second cone side. 2. The biasing force of the spring member is applied in the axial direction by being biased in the direction in which at least the FRP member of the fastened members is sandwiched between the first cone and the second cone on the tapered surface of the fastened member. The fastening device according to any one of claims 6 to 6.

A nut for holding the second cone is provided at a position farther from the bolt head than the second cone, the second cone has a through hole, and the bolt is inserted into the second cone and screwed into the nut. A plurality of fastened members including an FRP member and a metal member, and the flange collar and the metal member of the fastened members are sandwiched between the bolt head and the second cone at a fixed size, The metal member of the fastened member is sandwiched between the two cones with a fixed size, and the first cone is biased by the spring member in the direction away from the flange portion of the flange collar toward the second cone side. The at least FRP member of the fastened members is sandwiched between the first cone and the second cone on the tapered surface of the fastened member, and the biasing force of the spring member can be applied in the axial direction. The fastening device according to any one of claims.