JPH07243573A - Cross type adhesion joint - Google Patents

Abstract

PURPOSE:To form a cross type adhesion joint light in the weight and having a high rigidity and high strength for use in intersecting the first and second columns of small wall thickness at any crossing angle. CONSTITUTION:The first and second columns 1, 2 having a small wall thickness are divided into two segments at a point intersecting each other, and each end is equipped with U-notches 3 cut in longitudinal direction in two places symmetrical on a circumference, wherein a joining plate 4 is inserted in each U-notch 3, and omega-form coupling pieces 9 are adhered to both surfaces of the joining plate in four places, totally eight, in such a way as enwrapping from the outside of the first and second. and thus a cross type adhesion joint is accomplished.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cross type adhesive joint for use in a space structure such as an artificial satellite structure made of fiber reinforced composite material, an antenna tower for mounting a satellite or a space station.

[0002]

2. Description of the Related Art FIG. 9 is a diagram showing a conventional cross-type adhesive joint, FIG. 9 (a) is an external view, and FIG. 9 (b) is a sectional view taken along line CC of FIG. 9 (a). Is. In the figure,
Reference numeral 1 is a first thin-walled cylinder, 2 is a second thin-walled cylinder, and 12 is a cross connector.

Next, the operation will be described. The conventional cross-type adhesive joint has the first thin-walled cylinder 1 and the first thin-walled cylinder 1 that have flat cut surfaces from four directions on four arm portions of the cross-type connector 12 that is configured and integrally molded as described above. Two thin cylinders 2 are inserted and adhesively bonded.

[0004]

In the conventional cross-type adhesive joint as described above, the cross-type connector has a saddle type outer shape in which two cylinders intersect each other at an arbitrary angle. When integrally molding by processing, it is very difficult to machine this saddle type part, and it requires a great amount of processing time,
In addition to the considerable cost increase, it is extremely difficult to reduce the wall thickness of this saddle-shaped part by machining, so it is difficult to reduce the weight of the joint itself and it becomes a heavy object. There was a problem of being lost.

The present invention has been made to solve the above problems, and eliminates the cross-shaped connector having a saddle-shaped shape which is difficult to machine, thereby shortening the processing time and reducing the cost. It is an object of the present invention to obtain a cross-type adhesive joint that simplifies the joint structure and enables significant weight reduction, and that can be used even when thin-walled cylinders intersect at an arbitrary angle.

[0006]

In the cross type adhesive joint according to the present invention, U is provided with notches in the longitudinal direction at two circumferentially symmetrical positions at each end of the first and second thin cylinders. Insert one joining plate into the V-shaped notch, and
Eight Ω-type connectors are bonded and integrated so as to wrap them from the outside of the thin-walled cylinder and the joining plate, and the first and second thin-walled cylinders are bonded together at an arbitrary angle.

Further, one joint plate is inserted into the U-shaped notches provided at the respective ends of the first and second thin-walled cylinders, and further, between these thin-walled cylinders and the joint plate. In the semi-circular gap formed in, a thin-walled two-divided cylinder with a semi-circular cross section having a sandwich structure formed by using a fiber-reinforced composite material thin plate for the skin and a honeycomb core for the core material is inserted and fixed, and In addition, eight Ω-type connectors are bonded and integrated so as to wrap them from the outside of the thin-walled cylinder and the joining plate, and the first and second thin-walled cylinders are bonded together at an arbitrary angle. .

A sandwich structure in which a U-shaped notch provided at each end of each of the first and second thin cylinders is used and a fiber-reinforced composite thin plate is used for the skin and a honeycomb core is used for the core is formed. Insert one joining plate that has,
Furthermore, eight Ω-type connectors are bonded and integrated so as to wrap from the outside of the thin-walled cylinder and the joint plate,
And the second thin cylinder is a joint that can be adhesively bonded at an arbitrary angle.

A sandwich formed by using a U-shaped notch provided at each end of the first and second thin cylinders, a fiber-reinforced composite thin plate for the skin, and a honeycomb core for the core is formed. A single bonded plate having a structure is inserted, and further, in a semicircular gap formed between these thin cylinders and the bonded plate, a fiber-reinforced composite thin plate is used as a skin and a honeycomb is used as a core. A thin-walled two-divided cylinder having a semicircular cross-section having a sandwich structure formed by using a core is inserted and fixed by adhesion, and in addition, eight Ω-shaped connectors are adhesively bonded so as to wrap from the outside of the thin-walled cylinder and the joining plate. The first and second thin-walled cylinders are integrally formed into a joint that can be adhesively bonded at an arbitrary angle.

A single joining plate is inserted into the U-shaped notches provided at the respective ends of the first and second thin-walled cylinders, and furthermore, the fiber-reinforced composite material thin plate and the core material are attached to the skin. Eight Ω-shaped connectors having a sandwich structure formed by using a honeycomb core are adhesively bonded and integrated so as to wrap from the outside of the thin-walled cylinder and the bonding plate, and
And the second thin cylinder is a joint that can be adhesively bonded at an arbitrary angle.

Further, one joint plate is inserted into the U-shaped notches provided at the ends of the first and second thin-walled cylinders, respectively, and further, the thin-walled cylinder and the joint plate are joined together. Into the semi-circular gap formed between them, a thin-walled two-divided cylinder with a semi-circular cross section having a sandwich structure formed by using a fiber-reinforced composite material thin plate for the skin and a honeycomb core for the core material is inserted and fixed. In addition, 8 Ω type connectors having a sandwich structure formed by using a fiber reinforced composite material thin plate for the skin and a honeycomb core for the core material are bonded and integrated so as to wrap it from the outside of the thin-walled cylinder and the bonding plate. And the first and second thin-walled cylinders are joints that can be adhesively bonded at an arbitrary angle.

A sandwich structure in which a U-shaped notch provided at each end of the first and second thin-walled cylinders is used, and a fiber-reinforced composite thin plate is used for the skin and a honeycomb core is used for the core is formed. Insert one joining plate that has,
Further, a fiber reinforced composite material thin plate is used for the skin, and a honeycomb structure is used for the core material.
The individual Ω-type connectors are bonded and integrated so as to wrap the thin-walled cylinder and the joining plate from the outside of the joining plate, and the first and second thin-walled cylinders are bonded together at an arbitrary angle.

A sandwich formed by using a U-shaped notch provided at each end of the first and second thin-walled cylinders, a fiber-reinforced composite thin plate as a skin, and a honeycomb core as a core is formed. Insert one bonding plate having a structure, and further, in the semicircular gap formed between these thin-walled cylinders and the bonding plate, a fiber-reinforced composite thin plate on the skin and a honeycomb core as the core material. Is used to insert a thin-walled two-part cylinder having a semicircular cross-section having a sandwich structure, and is bonded and fixed to the joining plate and the first or second thin-walled cylinder to be integrated, and in addition, the fiber-reinforced composite thin plate is attached to the skin. , 8 Ω type connectors having a sandwich structure in which a honeycomb core is used as the core material are adhesively bonded so as to cover the first or second thin cylinder and the bonding plate from the outside. Which it is integrated, in which the first and second thin cylinder is the joint that can be adhesively bonded at any angle.

[0014]

In the cross type adhesive joint of the present invention, the tensile / compressive load and bending / torsion moment transmitted from the first and second thin-walled cylinders are bonded to each other from the outside of the thin-walled cylinder by an Ω type connector. Via the joint plate, and then again from the joint plate to the first and second thin-walled cylinders on the opposite sides via the Ω-shaped connector, and the joint plate exerts its function as a joint. , Ω
Since the mold connector is bonded to the end of the thin-walled cylinder having the U-shaped cutout and integrated with the joining plate, the strength and rigidity of the end of the thin-walled cylinder due to the presence of the U-shaped cutout is prevented from decreasing. , And the Ω-type connector is first from both sides of the joint plate.
A circular closed cross section is formed by gluing the second thin cylinder and the second thin cylinder so that the torsional rigidity is significantly improved. Therefore, when the joining plate and the Ω-type connector are bonded and integrated with the first and second thin-walled cylinders, the thin-walled cylinders that intersect with each other at an arbitrary angle are stretched and compressed. The strength is also dramatically improved, and as a result, these excellent mechanical properties can be sufficiently reflected in the optimized structural design of the joint part, and the cross-type adhesive joint itself can be made lighter. Not only that, but because the structure is extremely simple, the processing is very easy and the cost can be greatly reduced.

Further, the tensile / compressive loads and bending / torsion moments transmitted from the first and second thin-walled cylinders are adhered and fixed from the outside of the thin-walled cylinder to the ends of the Ω-shaped connector and the thin-walled cylinder. It is transmitted to the joining plate via the thin-walled two-divided cylinder that is inserted and adhered, and then, again, the first and second thin-walled cylinders on the opposite side from the joining plate through the Ω-type connector and the thin-walled two-divided cylinder. However, since the Ω-shaped connector and the thin-walled two-divided cylinder are bonded to the end of the thin-walled cylinder having the U-shaped notch and integrated with the joining plate, By preventing the strength and rigidity of the end of the thin-walled cylinder from decreasing due to the presence of the U-shaped notch, and by bonding the Ω-shaped connector from both sides of the joining plate so as to wrap the first and second thin-walled cylinders. Closed cross-section of the circular is configured. As a result, the torsional rigidity of the joint portion is remarkably improved because the thin-walled two-divided cylinder itself has a closed cross section in addition to the significantly improved torsional rigidity, and the thin-walled two-divided cylinder is made of a fiber-reinforced composite material thin plate. Since it has a sandwich structure formed of a core material composed of a skin and a honeycomb core, the thin-walled two-part cylinder itself is also extremely lightweight. Therefore, when these joining plate and Ω-type connector are inserted into the ends of the thin-walled cylinder and are adhesively bonded and integrated with the first and second thin-walled cylinders, they intersect at an arbitrary angle. As a thin-walled cylindrical joint, not only tensile / compressive strength, but also bending / torsion strength and bending / torsional rigidity are dramatically improved, and as a result, the structure of the cross-type adhesive joint itself becomes extremely simple. Therefore, not only machining becomes very easy and the cost can be greatly reduced, but also these excellent mechanical characteristics can be reflected in the optimized structural design, and the weight can be further reduced.

The tensile / compressive loads and the bending / torsion moments transmitted from the first and second thin-walled cylinders are transmitted from the outer side of the thin-walled cylinders to the joint plate via the Ω-shaped connector bonded and fixed, After that, again, the first plate on the opposite side from the joint plate via the Ω-type connector is again formed.
And the second thin cylinder is transmitted to exert a function as a joint. However, since the Ω-shaped connector is bonded to the thin cylinder end portion having the U-shaped notch portion and integrated with the joining plate, A circle is formed by preventing the strength and rigidity of the end of the thin-walled cylinder from decreasing due to the presence of the U-shaped notch, and by bonding the Ω-shaped connector from both sides of the joining plate so as to wrap the first and second thin-walled cylinders. A closed cross section of is constructed. As a result, the torsional rigidity is remarkably improved, and in addition, since the joint plate has a sandwich structure formed of a skin made of a fiber-reinforced composite thin plate and a core material made of a honeycomb core, the joint plate itself is bent. The rigidity is remarkably improved and the weight is extremely light. Therefore, when these joining plate and Ω-type connector are inserted into the ends of the thin-walled cylinder and are adhesively bonded and integrated with the first and second thin-walled cylinders, they intersect at an arbitrary angle. As a thin cylindrical joint, not only tensile / compressive strength and rigidity but also bending / torsion strength and bending / torsional rigidity are dramatically improved. As a result, the structure of the cross-type adhesive joint itself is extremely simple. Therefore, not only machining becomes very easy and the cost can be greatly reduced, but also these excellent mechanical characteristics can optimize the structural design and further reduce the weight.

Further, the tensile / compressive loads and bending / torsion moments transmitted from the first and second thin-walled cylinders are adhered and fixed from the outside of these thin-walled cylinders by Ω.
It is transmitted to the joint plate through the mold connector and the thin-walled two-part cylinder inserted and adhered to the ends of these thin-walled cylinders, and then again from this joint plate through the Ω-shaped connector and the thin-walled two-part cylinder. They are transmitted to the first and second thin-walled cylinders on the opposite sides to exert a function as a joint, but an Ω-shaped connector is bonded to the end of the thin-walled cylinder having a U-shaped cutout portion to form a joint plate. Because it is one, U
The strength and rigidity of the end of the thin cylinder due to the presence of the V-shaped notch is prevented, and the Ω-shaped connector is adhered from both sides of the joining plate so as to wrap the first and second thin cylinders to form a circular shape. A closed cross section is constructed. As a result, the torsional rigidity is remarkably improved, and in addition, since the thin-walled two-divided cylinder itself has a closed semicircular cross section, the torsional rigidity is remarkably improved, and further, the joint plate is made of a fiber-reinforced composite material thin plate and a honeycomb. Since it has a sandwich structure formed of a core material made of a core, the bending rigidity of the joint plate itself is remarkably improved, and the weight is extremely light. In addition, the thin-walled two-part cylinder is also a fiber-reinforced composite material. Since it has a sandwich structure formed of a skin made of a thin plate and a core material made of a honeycomb core, the bending rigidity and strength are remarkably improved and the weight is extremely reduced. Therefore, when the thin-walled two-divided cylinder, the Ω-shaped connector, and the joint plate are inserted into the ends of the thin-walled cylinder and are adhesively bonded and integrated with the first and second thin-walled cylinders, an arbitrary angle is set. As a joint of thin-walled cylinders that intersects with each other, not only tensile / compressive strength but also bending / torsion strength and bending / torsional rigidity are dramatically improved. As a result, the structure of the intersecting adhesive joint itself Since it is extremely simple, not only processing becomes very easy and significant cost reduction is possible, but also these excellent mechanical characteristics can optimize the structural design and further reduce the weight.

The tensile / compressive loads and bending / torsion moments transmitted from the first and second thin-walled cylinders are connected to the joint plate via the Ω-shaped connector adhered and fixed from the outside of these thin-walled cylinders. After being transmitted, the joint plate is again transmitted to the first and second thin-walled cylinders on the opposite sides via the Ω-shaped coupler to function as a joint. Since it is bonded to the end portion of the thin-walled cylinder having the U-shaped notch portion and integrated with the joining plate, the strength and rigidity of the end portion of the thin-walled cylinder portion due to the existence of the U-shaped notch can be prevented, and at the same time, Ω
Since the mold connector is adhered from both sides of the joining plate so as to wrap the first and second thin cylinders, a circular closed cross section is formed and torsional rigidity is remarkably improved, so that it is possible to significantly reduce the weight of the joint portion. In addition, this Ω-type connector has a honeycomb core as a core material and has a sandwich section formed by using a fiber-reinforced composite material thin plate on both surfaces of the skin, so that the bending rigidity is significantly improved. result,
Further weight reduction is possible. Therefore, when these joining plate and Ω-type connector are inserted into the ends of the thin-walled cylinder and are adhesively bonded and integrated with the first and second thin-walled cylinders, they intersect at an arbitrary angle. As a joint for thin-walled cylinders, not only tensile and compressive strength and rigidity, but bending and
The torsional strength and bending / torsional rigidity are also dramatically improved, and as a result, the structure of the cross-type adhesive joint itself is extremely simple, so processing is also very easy and significant cost reduction is achieved. Not only do these enable, but these excellent mechanical properties can optimize the structural design and make it even lighter.

The tensile / compressive loads and bending / torsion moments transmitted from the first and second thin-walled cylinders are adhered and fixed from the outside of these thin-walled cylinders by Ω.
It is transmitted to the joining plate through the thin-walled two-divided cylinder inserted and adhered to the end of the mold connector and the thin-walled cylinder, and then again.
From this joint plate, it is transmitted to the first and second thin-walled cylinders on the opposite sides through the Ω-shaped connector and the thin-walled two-divided cylinder, respectively, and functions as a joint.
Since the mold connector is bonded to the end of the thin-walled cylinder having the U-shaped cutout and integrated with the joining plate, the strength and rigidity of the end of the thin-walled cylinder due to the presence of the U-shaped cutout can be prevented from decreasing. , Since the Ω type connector has a honeycomb core as the core material and the sandwiched cross-section formed by using the fiber reinforced composite material thin plates on the skins on both sides, the Ω type connector itself becomes extremely lightweight, and the bending rigidity and The strength is remarkably improved, and the weight can be further reduced. Furthermore, the thin wall 2
The split cylinder also has a sandwich structure made of a skin made of a fiber-reinforced composite thin plate and a core material made of a honeycomb core, so that the bending rigidity and strength are remarkably improved, and the thin-walled 2-split cylinder itself is extremely lightweight. In addition, the thin-walled two-divided cylinder itself has a closed cross section, and since the Ω-type connector is also bonded and integrated from both sides of the joining plate, a circular closed cross section is formed and torsional rigidity and torsion are improved. The strength is remarkably improved, and the weight can be further reduced. Therefore, when these thin-walled two-divided cylinders and joint plates are inserted into the ends of the thin-walled cylinders and are adhesively bonded and integrated with the first and second thin-walled cylinders, they intersect at an arbitrary angle. As a joint for thin-walled cylinders, not only tensile / compressive strength and rigidity but also bending strength / rigidity, especially torsional strength / rigidity, are dramatically improved.
Since the structure of the cross-type adhesive joint itself is also extremely simple, not only processing becomes very easy and significant cost reduction is possible, but also these excellent mechanical properties can optimize the structural design and The weight can be reduced.

The tensile / compressive loads and bending / torsion moments transmitted from the first and second thin-walled cylinders are connected to the joint plate via the Ω-shaped connector adhered and fixed from the outside of these thin-walled cylinders. After being transmitted, the joint plate is again transmitted to the first and second thin-walled cylinders on the opposite sides via the Ω-shaped coupler to function as a joint. Since it is bonded to the end portion of the thin-walled cylinder having the U-shaped cutout and integrated with the joining plate, the strength and rigidity of the end of the thin-walled cylinder due to the presence of the U-shaped cutout is prevented. Also, Ω
The mold connector is adhered from both sides of the bonding plate so as to enclose the first and second thin cylinders, thereby forming a circular closed cross section, and the torsional rigidity is remarkably improved and the weight can be reduced. Since it has a honeycomb core as a core material and a sandwich cross section formed by using fiber reinforced composite material thin plates on both surface skins, the bending rigidity is remarkably improved and further weight reduction is possible. Since the joining plate also has a sandwich structure formed by a skin made of a fiber-reinforced composite material thin plate and a core material made of a honeycomb core, the bending rigidity is remarkably improved, and the weight can be further reduced. Therefore, when these joining plate and Ω-type connector are inserted into the ends of the thin-walled cylinder and are adhesively bonded and integrated with the first and second thin-walled cylinders, they intersect at an arbitrary angle. As a thin-walled cylindrical joint, not only tensile / compressive strength, but also bending / torsion strength and bending / torsional rigidity are dramatically improved, and as a result, the structure of the cross-type adhesive joint itself becomes extremely simple. Therefore, not only machining becomes very easy and the cost can be greatly reduced, but also these excellent mechanical characteristics can optimize the structural design and further reduce the weight.

The tensile / compressive loads and bending / torsion moments transmitted from the first and second thin-walled cylinders are adhered and fixed from the outside of these thin-walled cylinders by Ω.
Thin wall 2 inserted and bonded to the end of the mold connector and thin cylinder
It is transmitted to the joining plate through the split cylinder, then
Again, this joint plate is transmitted to the first and second thin-walled cylinders on the opposite sides through the Ω-shaped coupler and the thin-walled two-divided cylinder, respectively, and functions as a joint. Since it is bonded to the end of the thin-walled cylinder having the U-shaped cutout and integrated with the joint plate, the strength and rigidity of the end of the thin-walled cylinder due to the presence of the U-shaped cutout can be prevented and the Ω type connection can be prevented. The child is bonded from both sides of the joining plate to form a circular closed cross section, so the torsional rigidity and strength are significantly improved, and the thin-walled two-part cylinder itself also has a semicircular closed cross section, which results in torsional rigidity. -Strength is significantly improved. In addition, the Ω-type connector has a sandwich section formed by using a honeycomb core for the core material and fiber reinforced composite material thin plates on both sides of the skin, so the bending rigidity is significantly improved and the weight is even lighter. In addition, since the joining plate also has a sandwich structure formed of a core material made of a skin and a honeycomb core made of a fiber-reinforced composite thin plate, the bending rigidity and strength of the joining plate itself is significantly improved. Moreover, since the thin-walled two-divided cylinder also has the sandwich structure formed of the core made of the skin made of the fiber-reinforced composite material thin plate and the honeycomb core, only the bending rigidity and the strength are remarkably improved. Of course, these joint plates, the thin-walled two-divided cylinders, and the Ω-type connectors themselves are made lighter, and the joints themselves are also made up of them. It will be significantly reduced in weight. Therefore, when the thin-walled two-divided cylinder, the Ω-shaped connector, and the joint plate are inserted into the ends of the thin-walled cylinder and are adhesively bonded and integrated with the first and second thin-walled cylinders, an arbitrary angle is set. As a joint of thin-walled cylinders that intersects with each other, not only tensile / compressive strength but also bending / torsion strength and bending / torsional rigidity are dramatically improved. As a result, the structure of the intersecting adhesive joint itself Since it is extremely simple, not only processing becomes very easy and significant cost reduction is possible, but also these excellent mechanical characteristics can optimize the structural design and further reduce the weight.

[0022]

【Example】

Example 1. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 (a) is a diagram showing a cross-type adhesive joint according to the present invention, and FIG. 1 (b) is a sectional view. In the figure, 1 is a first thin-walled cylinder, 2 is a second thin-walled cylinder, and 3 is a U-shaped notch provided at two circumferentially symmetrical positions at the ends of the first and second thin-walled cylinders. Reference numeral 4 is a bonding plate, and 9 is an Ω-type connector.

Next, the operation of the above embodiment will be described. The first thin-walled cylinder 1 and the second thin-walled cylinder 2 are divided into two parts where they intersect each other, and the ends thereof are U-shaped notches 3 cut in the longitudinal direction at two positions that are circumferentially symmetrical. The joint plate 4 is inserted into the U-shaped notch 3, and the Ω-shaped connector 9 is provided on both sides of the joint plate so as to wrap it from the outside of the first thin-walled cylinder 1 and the second thin-walled cylinder 2. Since a cross type adhesive joint is formed by adhering and fixing four pieces at a total of eight places, a tensile / compressive load and a bending / torsion moment transmitted from each of the first thin-walled cylinder 1 and the second thin-walled cylinder 2. Is once transmitted to the bonding plate 4 via the Ω-type coupler 9 and then again the Ω-type coupler 9 is transmitted.
Is transmitted to each of the first thin-walled cylinder 1 and the second thin-walled cylinder 2 via the so as to exhibit the function as a cross-type adhesive joint.

Therefore, the joining plate 4 and the Ω-type connector 9 constitute the first thin-walled cylinder 1 as a component of the cross-type adhesive joint.
And the second thin cylinder 2 are adhesively bonded and integrated, not only the tensile / compressive strength and strength, but also the bending strength /
Since the rigidity is significantly improved, the buckling strength against a compressive load is also significantly improved. Further, an Ω-shaped connector 9 is adhered to the periphery of the U-shaped notch 3 provided at the end of the thin-walled cylinder, and the bonding plate 4 is attached.
Since it is integrated with the above, it is possible to prevent the strength and rigidity of the end of the thin-walled cylinder from being deteriorated by the existence of the U-shaped notch 3, and to construct a circular cross section in which the two Ω-shaped connectors 9 are closed. As a result, the torsional rigidity and the torsional strength are remarkably improved, the overall weight of the joint itself can be optimized and the optimum design can be achieved, and the joint weight can be remarkably reduced. As a result, since the structure as the joint is simple, the load transmission path is also very simple, and not only the angle at which the first and second thin-walled cylinders intersect can be freely set, but also the first The thickness of the joint plate 4 and the thickness of the Ω-type connector 9 can be appropriately changed according to the magnitude of the tensile / compressive load and bending / torsion moment transmitted from the thin-walled cylinder 1 and the second thin-walled cylinder 2. It has become possible to reduce the weight and to make a remarkably low-priced cross-type adhesive joint.

Example 2. A second embodiment of the present invention will be described below with reference to the drawings. FIG. 2A is a diagram showing a cross-type adhesive joint according to the present invention, and FIG. 2B is a sectional view.
In the figure, 1 is a first thin-walled cylinder, 2 is a second thin-walled cylinder, and 3 is a U-shaped notch provided at two circumferentially symmetrical positions at the ends of the first and second thin-walled cylinders. 4 is a joining plate, 7 is a thin-walled 2-part cylindrical skin, 8 is a thin 2-part cylindrical honeycomb core, and 9 is an Ω type connector.

Next, the operation of the above embodiment will be described. The first thin-walled cylinder 1 and the second thin-walled cylinder 2 are divided into two parts where they intersect each other, and the ends thereof are U-shaped notches 3 cut in the longitudinal direction at two positions that are circumferentially symmetrical. Each having a semicircular shape formed by inserting a joining plate 4 into the U-shaped notch 3 and between the joining plate 4 and the first thin-walled cylinder 1 or the second thin-walled cylinder 2. In the gap,
Thin-walled 2-part cylindrical skin 7 and thin-walled 2-part cylindrical honeycomb core 8
Light weight and high rigidity with a sandwich structure consisting of
Eight thin-walled two-divided cylinders with high mechanical strength and excellent mechanical characteristics were inserted and bonded at four places on both sides of the joining plate 4, and further, from the outside of the first thin-walled cylinder 1 and the second thin-walled cylinder 2, U
Since a total of eight Ω-type connectors 9 are adhesively fixed to the two surfaces of the joining plate 4 along the V-shaped notch 3 to form a cross-type adhesive joint, the first thin cylinder 1 and the second thin cylinder 1 Tensile / compressive load and bending transmitted from each of the thin-walled cylinders 2
The torsion moment is once calculated by the thin-walled two-division cylinder and Ω.
It is transmitted to the joint plate 4 through the mold coupler 9,
After that, it is transmitted again to each of the first thin-walled cylinder 1 and the second thin-walled cylinder 2 via the thin-walled two-divided cylinder and the Ω-shaped connector 9 located on the opposite side, and exhibits the function as a cross-type adhesive joint. It will be.

Therefore, a thin-walled two-divided cylinder having a sandwich structure having a thin two-divided cylindrical skin 7 made of a fiber-reinforced composite thin plate as a skin and a thin-walled two-divided cylindrical honeycomb core 8 as a core material and having a high out-of-plane bending rigidity and strength, When the joining plate 4 and the Ω-type connector 9 are adhesively bonded and integrated with the first thin-walled cylinder 1 and the second thin-walled cylinder 2 as components of the cross-type adhesive joint, only the tensile / compressive strength and rigidity are obtained. Moreover, the buckling strength against a compressive load is also significantly improved. In addition, the thin-walled two-divided cylinder itself has a closed semicircular cross-section, which dramatically improves torsional rigidity and torsional strength. The strength and rigidity are dramatically improved not only for bending moments but also for torsional moments. Improve to. Furthermore, since eight Ω-shaped connectors are adhered to the periphery of the U-shaped notch 3 provided at the end of the thin-walled cylinder and integrated with the joining plate 4, the presence of the U-shaped notch 3 causes the thin-walled cylinder end to exist. It is possible to prevent the strength and rigidity of the portion from decreasing, and the two Ω-type connectors 9 form a closed circular cross section, so that the torsional rigidity and the torsional strength are remarkably improved. A lightweight, high-rigidity, high-strength sandwich structure consisting of a skin and a honeycomb core has been applied to reduce the weight, and the structure of the joint itself is also extremely simple, which enables optimal design for weight reduction and reduces the joint weight. As a result, not only the intersecting angle of the first and second thin-walled cylinders can be freely set, but also the tensile / compressive load transmitted from the first thin-walled cylinder 1 and the second thin-walled cylinder 2 is reduced. And bending / torsion moment Depending on the size, the thickness of the joint plate skin, the thickness of the thin-walled 2-part cylindrical skin, and the thickness of the Ω-type connector can be changed appropriately, and it is possible to make a cross-type adhesive joint that is lightweight and remarkably low cost. Has become.

Example 3. Hereinafter, a third embodiment of the present invention will be described with reference to the drawings. FIG. 3 (a) is a diagram showing a cross-type adhesive joint according to the present invention, and FIG. 3 (b) is a sectional view.
In the figure, 1 is a first thin-walled cylinder, 2 is a second thin-walled cylinder, and 3 is a U-shaped notch provided at two circumferentially symmetrical positions at the ends of the first and second thin-walled cylinders. Reference numeral 5 is a bonded plate skin, 6 is a bonded plate honeycomb core, and 9 is an Ω type connector.

Next, the operation of the above embodiment will be described. The first thin-walled cylinder 1 and the second thin-walled cylinder 2 are divided into two parts where they intersect each other, and the ends thereof are U-shaped notches 3 cut in the longitudinal direction at two positions that are circumferentially symmetrical. The joint plate composed of the joint plate skin 5 and the joint plate honeycomb core 6 is inserted into the U-shaped notch 3, and the Ω-shaped connector 9 is attached to the first thin cylinder 1 and the second thin cylinder 1. Since a total of eight adhesive bonds are formed on the two surfaces of the joining plate along the U-shaped notch of the thin-walled cylinder 2 to form a cross-type adhesive joint, the first thin-walled cylinder 1 and the second thin-walled cylinder 2 The tensile / compressive loads and bending / torsion moments transmitted from each of them are once transmitted to the joint plate via the Ω-type connector 9 and then again via the Ω-type connector 9 located at the other end. And the first thin cylinder 1 and the second thin wall on the opposite side Is transmitted to each of the pillar 2 will exhibit a function as cross-type adhesive joint.

Therefore, the joining plate skin 5 made of a fiber-reinforced composite material thin plate is used as a skin and the joining plate honeycomb core 6 is formed.
A joint plate having a sandwich structure having a high bending rigidity and strength in the out-of-plane direction with a core as a core member, and an Ω-type connector 9 are used as a first thin cylinder 1 and a second thin cylinder as components of a cross-type adhesive joint. When it is adhesively bonded and integrated with 2, the buckling strength against compression load as well as the tensile / compressive strength is remarkably improved. Furthermore, the Ω-shaped connector 9 is a U-shaped member provided at the end of the thin cylinder. Since it is bonded to the periphery of the mold notch 3 and integrated with the joining plate, the presence of the U-shaped notch 3 can prevent the strength and rigidity of the end portion of the thin-walled cylinder from being lowered, and the Ω-shaped connector 9 can be formed. By forming a closed circular cross section, the torsional rigidity and strength are significantly improved, and the joint portion itself has an extremely simple structure, which facilitates weight reduction. As a result, not only the angle at which the first and second thin-walled cylinders 2 intersect can be freely set, but also the tensile force transmitted from the first thin-walled cylinders 1 and the second thin-walled cylinders 2
The thickness of the joint plate skin and the thickness of the Ω-type connector 9 can be changed appropriately according to the compressive load and the magnitude of bending / torsion moments, which facilitates the weight saving optimum design and makes the weight light and extremely low cost. It is possible to make cross-type adhesive joints.

Example 4. Hereinafter, a fourth embodiment of the present invention will be described with reference to the drawings. FIG. 4 (a) is a diagram showing a cross-type adhesive joint according to the present invention, and FIG. 4 (b) is a sectional view.
In the figure, 1 is a first thin-walled cylinder, 2 is a second thin-walled cylinder, and 3 is a U-shaped notch provided at two circumferentially symmetrical positions at the ends of the first and second thin-walled cylinders. Reference numeral 5 is a bonded plate skin, 6 is a bonded plate honeycomb core, and 7 is a thin wall 2
A split cylindrical skin, 8 a thin-walled 2-split cylindrical honeycomb core, and 9 an Ω-type connector.

Next, the operation of the above embodiment will be described. The first thin-walled cylinder 1 and the second thin-walled cylinder 2 are divided into two parts where they intersect each other, and the ends thereof are U-shaped notches 3 cut in the longitudinal direction at two positions that are circumferentially symmetrical. In the U-shaped notch 3, a lightweight, high-rigidity / high-strength joint plate having a sandwich structure composed of the joint plate skin 5 and the joint plate honeycomb core 6 is inserted. 1 thin cylinder 1 and 2
Each of the semi-circular gaps formed between the thin-walled cylinder 2 and the thin-walled cylinder 2 has a sandwich structure composed of a thin-walled two-partitioned cylinder skin 7 and a thin-walled two-part cylindrical honeycomb core 8 and is lightweight, high-rigidity and high-strength thin-wall 2 A total of eight split cylinders are inserted and bonded at four places on both sides, and an Ω-type connector 9 is further inserted along the U-shaped cutouts 3 of the first thin cylinder 1 and the second thin cylinder 2 to join the plates. Since a total of 8 pieces are bonded and fixed to 4 positions on both sides of the to form a cross type adhesive joint, the tensile / compressive load and bending / torsion moment transmitted from each of the first thin-walled cylinder 1 and the second thin-walled cylinder 2 Is once transmitted to the joining plate through the thin-walled two-divided cylinder and the Ω-shaped coupler 9, and then again through the thin-walled two-divided cylinder and the Ω-shaped coupler 9 located at the other end. For each of the thin-walled cylinder 1 and the second thin-walled cylinder 2 of Reached is made to function as cross-type adhesive joint.

Therefore, the joint plate skin 5 made of a fiber-reinforced composite thin plate is used as the skin, and the joint plate honeycomb core 6 is used.
A joining plate having a sandwich structure having a high bending rigidity and strength in the out-of-plane direction using a core as a core material, and a thin two-section cylindrical honeycomb core 8 made of a fiber-reinforced composite material thin plate as a skin And a thin-walled two-part cylinder having a sandwich structure having high bending rigidity and strength in the out-of-plane direction, and an Ω-type connector 9 as first and second thin-walled cylinders 1 and 2 as components of a cross-type adhesive joint. When it is adhesively bonded and integrated with the cylinder 2, not only the tensile / compressive strength but also the buckling strength against a compressive load are remarkably improved. In addition, since the thin-walled two-divided cylinder itself has a closed cross section, it is twisted. The rigidity and torsional strength are also dramatically improved,
Since the Ω-shaped connector 9 is also bonded to the U-shaped notch provided at the end of the thin-walled cylinder and integrated with the joining plate, the strength and rigidity of the end of the thin-walled cylinder due to the presence of the U-shaped notch can be prevented. Not only is it possible, but also the Ω-type connector 9 constitutes a closed circular cross section, so that the torsional rigidity and strength are significantly improved, and the torsional rigidity and strength as a joint is remarkably increased. In addition, a thin two-divided cylinder with a sandwich structure consisting of a lightweight skin with high rigidity and strength and a honeycomb core, and a joining plate with a sandwich structure consisting of a skin and honeycomb core, which is also lightweight, with high rigidity and strength. Since the weight is reduced by using it, the overall weight of the joint itself can be optimized and the optimum design can be achieved, and the joint weight can be significantly reduced. Simple and Ω
Since the mold connector 9 forms a closed circular cross section, the torsional rigidity and strength are significantly improved, and further, the intersecting angle of the first and second thin-walled cylinders can be freely set, and the first thin-walled cylinder 1 And the thickness of the joint plate skin, the thickness of the thin-walled two-divided cylinder skin, and the thickness of the Ω-type connector depending on the magnitude of the tensile / compression load and bending / torsion moment transmitted from the second thin cylinder 2. The cross-type adhesive joint, which can be appropriately modified and is light in weight and significantly low in cost, is made possible.

Example 5. Hereinafter, a fifth embodiment of the present invention will be described with reference to the drawings. FIG. 5 (a) is a diagram showing a cross-type adhesive joint according to the present invention, and FIG. 5 (b) is a sectional view.
In the figure, 1 is a first thin-walled cylinder, 2 is a second thin-walled cylinder, and 3 is a U-shaped notch provided at two circumferentially symmetrical positions at the ends of the first and second thin-walled cylinders. Reference numeral 4 is a bonding plate, 13 is an Ω-type connector skin, and 14 is an Ω-type connector honeycomb core.

Next, the operation of the above embodiment will be described. The first thin-walled cylinder 1 and the second thin-walled cylinder 2 are divided into two parts where they intersect each other, and the ends thereof are U-shaped notches 3 cut in the longitudinal direction at two positions that are circumferentially symmetrical. The joint plate 4 is inserted into the U-shaped notch 3 and has a sandwich structure including an Ω-type connector skin 10 and an Ω-type connector honeycomb core 11 from the outside, which is lightweight and has high rigidity. The high-strength Ω-type connector is attached to the first thin-walled cylinder 1,
Since a total of eight adhesives are fixed to each of the second thin-walled cylinder 2 and the joining plate 4 at four locations, one on each side, to form a cross-type adhesive joint, each of the first thin-walled cylinder 1 and the second thin-walled cylinder 2 The tensile / compressive load and bending / torsion moment transmitted from the above are once transmitted to the joint plate 4 via the Ω-shaped connector, and then again through the Ω-shaped connector to the first thin cylinder 1 and It is transmitted to each of the second thin-walled cylinders 2 and exerts a function as a cross-type adhesive joint.

Therefore, the lightweight, high-rigidity and high-strength Ω-type connector having the sandwich structure composed of the bonding plate 4, the Ω-type connector skin 10 and the Ω-type connector honeycomb core 11 constitutes the cross-type adhesive joint. When the first thin-walled cylinder 1 and the second thin-walled cylinder 2 are bonded and integrated as a component, not only the tensile / compressive strength and strength, but also the out-of-plane bending rigidity of the Ω-type connector is significantly increased. Buckling strength against compressive load is significantly improved. Furthermore, since the Ω-shaped connector is bonded to the U-shaped notch 3 provided at the end of the thin-walled cylinder and integrated with the joint plate, the presence of the U-shaped notch 3 reduces the strength and rigidity of the end of the thin-walled cylinder. In addition, the torsional rigidity and strength are remarkably improved by forming a closed circular cross section of the two Ω-type connectors, and in addition, the Ω-type connector has a lightweight structure consisting of a skin and a honeycomb core. With high rigidity
Since the weight is reduced by applying the high-strength sandwich structure, it is possible to make a comprehensive lightweight optimum design that improves the strength and rigidity of the joint itself, and the joint weight is significantly reduced. The structural load transmission path is very simple, and the first thin cylinder 1 and the second thin cylinder 1
The thickness of the joining plate can be appropriately changed according to the magnitudes of the tensile / compressive loads and bending / torsion moments transmitted from the thin-walled cylinder 2 and the angle at which the first and second thin-walled cylinders intersect can be freely set. It is now possible to make cross-type adhesive joints that are both lightweight and extremely low cost.

Example 6. Hereinafter, a sixth embodiment of the present invention will be described with reference to the drawings. FIG. 6 (a) is a diagram showing a cross-type adhesive joint according to the present invention, and FIG. 6 (b) is a sectional view.
In the figure, 1 is a first thin-walled cylinder, 2 is a second thin-walled cylinder, and 3 is a U-shaped notch provided at two circumferentially symmetrical positions at the ends of the first and second thin-walled cylinders. Reference numeral 4 is a bonding plate, 7 is a thin-walled two-divided cylindrical skin, 8 is a thin-walled two-divided cylindrical honeycomb core, 10 is an Ω type connector skin, and 11 is an Ω type connector honeycomb core.

Next, the operation of the above embodiment will be described. The first thin-walled cylinder 1 and the second thin-walled cylinder 2 are divided into two parts where they intersect with each other, and the ends thereof are U-shaped cutouts that are cut in the longitudinal direction at two positions that are circumferentially symmetrical. 3, the joint plate 4 is inserted into the U-shaped notch 3, and the joint plate 4 and the first thin cylinder 1 and the second
Each of the semi-circular gaps formed between the thin-walled cylinder 2 and the thin-walled cylinder 2 has a sandwich structure composed of a thin-walled two-partitioned cylinder skin 7 and a thin-walled two-part cylindrical honeycomb core 8 and is lightweight, high-rigidity and high-strength thin-wall 2 Lightweight, high-rigidity and high-strength Ω-type connection with a sandwich structure consisting of four divided cylinders, four at the top and bottom, a total of eight, and an Ω-type connector skin 10 and an Ω-type connector honeycomb core 11. Since a total of eight children are bonded and fixed to the two surfaces of the joint plate along the U-shaped notches 3 of the first thin-walled cylinder 1 and the second thin-walled cylinder 2 to form a cross-type adhesive joint, The tension / compression load and bending / torsion moment transmitted from each of the thin-walled cylinder 1 and the second thin-walled cylinder 1 are once transmitted to the joining plate via the thin-walled two-divided cylinder and the Ω-shaped connector. And then again to the other end Is transmitted to the first of each of the thin-walled cylinder 1 and the second thin cylindrical 2 via the thin bisected cylindrical and Ω-type connector to location will exhibit a function as cross-type adhesive joint.

Therefore, a sandwich structure having a high bending rigidity and strength in the out-of-plane direction with the joining plate 4 and the thin-walled 2-part cylindrical skin 7 made of a fiber-reinforced composite thin plate as the skin and the thin-walled 2-part cylindrical honeycomb core 8 as the core material. Sandwich structure having high bending rigidity and strength in the out-of-plane direction with a thin-walled two-divided cylinder having Ω and a Ω-type connector skin 10 made of a fiber-reinforced composite thin plate as a skin and an Ω-type connector honeycomb core 11 as a core material. When the Ω-type connector having the above is bonded and integrated with the first thin-walled cylinder 1 and the second thin-walled cylinder 2 as a component of the cross-type adhesive joint, not only the tensile / compressive strength but also the compression strength The buckling strength against load is remarkably improved, and in addition, since the thin-walled two-divided cylinder itself has a closed cross section, the torsional rigidity and the torsional strength are also remarkably improved, and the bending as a joint is improved. Strength and rigidity is greatly improved with respect to torsional moment not only Mento. Furthermore, Ω
Since the die connector is bonded to the U-shaped notch provided at the end of the thin-walled cylinder and integrated with the joining plate 4, it is only necessary to prevent the strength and rigidity of the end of the thin-walled cylinder from deteriorating due to the presence of the U-notch. In addition, the two Ω-type connectors themselves form a closed circular cross section, which significantly improves the torsional rigidity and strength. In addition, the thin-walled two-division cylinder together with the Ω-type connector is composed of a skin and a honeycomb core. By applying a lightweight, high-rigidity and high-strength sandwich structure, the weight can be reduced and the joint itself can be optimized for weight reduction with improved strength and rigidity, and the joint weight will be significantly reduced. As a result, the structural load transmission path as a joint becomes very simple, and the first
The thickness of the joining plate 4 can be appropriately changed according to the magnitudes of the tensile / compressive loads and bending / torsion moments transmitted from the thin-walled cylinder 1 and the second thin-walled cylinder of the first and second thin-walled cylinders. The angle of intersection can be set freely, and a cross-type adhesive joint that is light in weight and significantly low in cost can be made.

Example 7. The seventh embodiment of the present invention will be described below with reference to the drawings. FIG. 7 (a) is a diagram showing a cross-type adhesive joint according to the present invention, and FIG. 7 (b) is a sectional view.
In the figure, 1 is a first thin-walled cylinder, 2 is a second thin-walled cylinder, and 3 is a U-shaped notch provided at two circumferentially symmetrical positions at the ends of the first and second thin-walled cylinders. Reference numeral 5 is a bonded plate skin, 6 is a bonded plate honeycomb core, 10 is an Ω type connector skin, and 11 is an Ω type connector honeycomb core.

Next, the operation of the above embodiment will be described. The first thin-walled cylinder 1 and the second thin-walled cylinder 2 are divided into two parts where they intersect with each other, and the ends thereof are U-shaped cutouts that are cut in the longitudinal direction at two positions that are circumferentially symmetrical. 3 has a U-shaped notch 3, and a lightweight, high-rigidity, high-strength joint plate having a sandwich structure including a joint plate skin 5 and a joint plate honeycomb core 6 is inserted into the U-shaped notch 3, and further, Ω The U-shaped notch of the first thin-walled cylinder 1 and the second thin-walled cylinder 2 is a lightweight, high-rigidity, high-strength Ω-shaped connector having a sandwich structure composed of the type-combination skin 10 and the Ω-type connector honeycomb core 11. Since a total of 8 pieces are bonded and fixed to 4 locations on both sides along 3 to form a cross-type adhesive joint,
The tensile / compressive loads and the bending / torsion moments transmitted from each of the first thin-walled cylinder 1 and the second thin-walled cylinder 2 are once transmitted to the joining plate via the Ω-type connector, and then, Again, it is transmitted to each of the first thin-walled cylinder 1 and the second thin-walled cylinder 2 via the Ω-shaped connector located at the other end, and the function as a cross-type adhesive joint is exhibited.

Therefore, the joining plate skin 5 made of a fiber-reinforced composite thin plate is used as a skin, and the joining plate honeycomb core 6 is used.
Bonding plate having a sandwich structure having high out-of-plane bending rigidity and strength using a core material as a core material, and an Ω type connector skin 10 made of a fiber reinforced composite thin plate as a skin material, and an Ω type connector honeycomb core 11 as a core material. When an Ω-type connector having a sandwich structure having high out-of-plane bending rigidity and strength is bonded and integrated to the first thin-walled cylinder 1 and the second thin-walled cylinder 2 as a component of a cross-type adhesive joint. In addition to the tensile / compressive strength, the bending rigidity is remarkably improved, and the buckling strength against a compressive load is remarkably improved. Furthermore, since the Ω-shaped connector is bonded to the periphery of the U-shaped notch 3 provided at the end of the thin-walled cylinder and integrated with the joining plate, the strength and rigidity of the end of the thin-walled cylinder due to the presence of the U-shaped notch. In addition to being able to prevent the deterioration, the torsional rigidity and strength are remarkably improved because the Ω-type connector constitutes a closed circular cross section, and in addition, the Ω-type connector and the joining plate are made of a skin and a honeycomb core, which is lightweight and highly rigid. -Since it has a high-strength sandwich structure, it is lightweight and significantly enhances the out-of-plane bending rigidity, and it is possible to make an overall optimal design for weight reduction that improves the strength and rigidity of the joint itself. Remarkably reduced. As a result, the structural load transmission path as a joint becomes very simple, and the tensile / compressive loads and bending / torsion moments transmitted from the first thin-walled cylinder 1 and the second thin-walled cylinder 2 are large. The thickness of the joint plate skin 5 and the thickness of the Ω type connector skin 10 can be appropriately changed according to the thickness, and the intersecting angles of the first and second thin-walled cylinders can be freely set, and the weight and weight are extremely low. A costly crossover adhesive joint is now available.

Example 8. An eighth embodiment of the present invention will be described below with reference to the drawings. FIG. 8A is a diagram showing a cross-type adhesive joint according to the present invention, and FIG. 8B is a sectional view.
In the figure, 1 is a first thin-walled cylinder, 2 is a second thin-walled cylinder, and 3 is a U-shaped notch provided at two circumferentially symmetrical positions at the ends of the first and second thin-walled cylinders. Reference numeral 5 is a bonded plate skin, 6 is a bonded plate honeycomb core, and 7 is a thin wall 2
Split cylindrical skin, 8 is a thin 2-split cylindrical honeycomb core, 10
Is an Ω-type connector skin, and 11 is an Ω-type connector honeycomb core.

Next, the operation of the above embodiment will be described. The first thin-walled cylinder 1 and the second thin-walled cylinder 2 are divided into two parts where they intersect each other, and the ends thereof are U-shaped notches 3 cut in the longitudinal direction at two positions that are circumferentially symmetrical. In the U-shaped notch 3, a lightweight, high-rigidity / high-strength joint plate having a sandwich structure composed of the joint plate skin 5 and the joint plate honeycomb core 6 is inserted. 1 thin cylinder 1 and 2
Each of the semi-circular gaps formed between the thin-walled cylinder 2 and the thin-walled cylinder 2 has a sandwich structure composed of a thin-walled two-partitioned cylinder skin 7 and a thin-walled two-part cylindrical honeycomb core 8 and is lightweight, high-rigidity and high-strength thin-wall 2 Lightweight, high-rigidity and high-strength Ω-type connector having a sandwich structure composed of 8 divided cylinders, which are inserted in four places at the top and bottom and a total of 8 pieces are further bonded, and further, an Ω-type connector skin 10 and an Ω-type connector honeycomb core 11 are provided. From the outside of the first thin-walled cylinder 1 and the second thin-walled cylinder 2, a total of 8 pieces are bonded and fixed on four sides of the joint plate to form a joint, so that the first thin-walled cylinder 1 and the second thin-walled cylinder 1 The tensile / compressive load and bending / torsion moment transmitted from each of the thin-walled cylinders 2 are once transmitted to the joining plate via the thin-walled two-divided cylinder and the Ω-shaped connector, and then again to the other end. Located thin 2 minutes Is transmitted to the first of each of the thin-walled cylinder 1 and the second thin cylinder 2 opposite through a cylindrical and Ω-type connector will exhibit a function as cross-type adhesive joint.

Therefore, the joining plate skin 5 made of a fiber-reinforced composite thin plate is used as a skin, and the joining plate honeycomb core 6 is used.
A joining plate having a sandwich structure having a high bending rigidity and strength in the out-of-plane direction using the core material as a core material, and a thin-walled two-part cylindrical honeycomb core 8 having a thin two-part cylindrical cylinder skin 7 also made of a fiber-reinforced composite thin plate as a core material. And a thin-walled two-divided cylinder having a sandwich structure having high rigidity and strength in the out-of-plane direction, and an Ω-type connector skin 10 made of a fiber-reinforced composite material thin plate as a skin, and an Ω-type connector honeycomb core 11 as a core material. The Ω-type connector having a sandwich structure with high bending rigidity and strength in the out-of-plane direction
When the first thin-walled cylinder 1 and the second thin-walled cylinder 2 are adhesively bonded and integrated as a component of the cross-type adhesive joint, not only tensile / compressive strength but also buckling strength against compressive load is remarkably improved. In addition, since the thin-walled two-divided cylinder itself has a closed cross section, torsional rigidity and torsional strength are also dramatically improved. In addition, a U-shaped connector is provided at the end of the thin cylinder U
Since it is adhered to the V-shaped notch and integrated with the joint plate, it is possible to prevent the strength and rigidity of the end of the thin-walled cylinder from decreasing due to the presence of the U-shaped notch, and form a circular cross section with the Ω-shaped connector closed. As a result, the torsional rigidity and strength are remarkably improved, and the strength and rigidity of the joint are dramatically improved against not only tensile and compression loads and bending moments but also torsional moments. In addition, the Ω-type connector, thin-walled 2-part cylinder, and joint plate are made of a lightweight, high-rigidity, high-strength sandwich structure consisting of a skin and a honeycomb core to maximize weight reduction. It is possible to make a comprehensive lightweight optimum design with improved rigidity,
The joint weight is remarkably reduced, and as a result, the structural load transmission path as a joint is also very simple, and the tensile / compressive load and bending force transmitted from the first thin cylinder 1 and the second thin cylinder 2 are applied. The thickness of the joining plate can be appropriately changed according to the magnitude of the torsion moment, the angle at which the first and second thin-walled cylinders intersect can be set freely, and the cross-type adhesive joint that is lightweight and has a significantly low cost is provided. You can do it.

[0046]

The cross type adhesive joint according to the present invention has an Ω type connection in which the tensile / compressive loads and bending / torsion moments transmitted from the first and second thin cylinders are adhesively fixed from the outside of the thin cylinders. It is transmitted to the joining plate through the child, and then again from this joining plate through the Ω type connector to the first and second thin-walled cylinders on the opposite sides, respectively, so that the joint plate functions as a joint. However, since the Ω-shaped connector is bonded to the end of the thin-walled cylinder having the U-shaped cutout and integrated with the joining plate, the strength and rigidity of the end of the thin-walled cylinder due to the presence of the U-shaped cutout A circular closed cross section is formed by preventing the deterioration and by bonding the Ω-type connector from both sides of the joining plate so as to enclose the first and second thin cylinders, and as a result, the torsional rigidity is significantly improved.

Further, the tensile / compressive loads and bending / torsion moments transmitted from the first and second thin-walled cylinders are adhered and fixed from the outside of the thin-walled cylinder to the ends of the Ω-shaped connector and the thin-walled cylinder. It is transmitted to the joining plate via the thin-walled two-divided cylinder that is inserted and adhered, and then, again, the first and second thin-walled cylinders on the opposite side from the joining plate through the Ω-type connector and the thin-walled two-divided cylinder. However, since the Ω-shaped connector and the thin-walled two-divided cylinder are bonded to the end of the thin-walled cylinder having the U-shaped notch and integrated with the joining plate, By preventing the strength and rigidity of the end of the thin-walled cylinder from decreasing due to the presence of the V-shaped notch, and by bonding the Ω-shaped connector from both sides of the joining plate so as to wrap the first and second thin-walled cylinders. Closed cross-section of the form is constructed. As a result, the torsional rigidity of the joint portion is remarkably improved because the thin-walled two-divided cylinder itself has a closed cross section in addition to the significantly improved torsional rigidity, and the thin-walled two-divided cylinder is made of a fiber-reinforced composite material thin plate. Since it has a sandwich structure formed of a core material composed of a skin and a honeycomb core, the thin-walled two-part cylinder itself is also extremely lightweight.

The tensile / compressive loads and bending / torsion moments transmitted from the first and second thin-walled cylinders are transmitted from the outer side of the thin-walled cylinders to the joint plate via the Ω-shaped connector bonded and fixed, After that, again, the first plate on the opposite side from the joint plate via the Ω-type connector is again formed.
And the second thin cylinder is transmitted to exert a function as a joint. However, since the Ω-shaped connector is bonded to the thin cylinder end portion having the U-shaped notch portion and integrated with the joining plate, A circle is formed by preventing the strength and rigidity of the end of the thin-walled cylinder from decreasing due to the presence of the U-shaped notch, and by bonding the Ω-shaped connector from both sides of the joining plate so as to wrap the first and second thin-walled cylinders. A closed cross section of is constructed. As a result, the torsional rigidity is remarkably improved, and in addition, since the joint plate has a sandwich structure formed of a skin made of a fiber-reinforced composite thin plate and a core material made of a honeycomb core, the joint plate itself has a bending rigidity. Is significantly improved and is extremely lightweight.

Further, the tensile / compressive loads and bending / torsion moments transmitted from the first and second thin-walled cylinders are adhered and fixed from the outside of these thin-walled cylinders by Ω.
It is transmitted to the joint plate through the mold connector and the thin-walled two-part cylinder inserted and adhered to the ends of these thin-walled cylinders, and then again from this joint plate through the Ω-shaped connector and the thin-walled two-part cylinder. It is transmitted to the first and second thin-walled cylinders on the opposite sides to exert a function as a joint, but the Ω-shaped connector is bonded to the end of the thin-walled cylinder having the U-shaped cutout portion to form a joint plate. Because it is one, U
The strength and rigidity of the end of the thin cylinder due to the presence of the V-shaped notch is prevented, and the Ω-shaped connector is adhered from both sides of the joining plate so as to wrap the first and second thin cylinders to form a circular shape. A closed cross section is constructed. As a result, the torsional rigidity is remarkably improved, and in addition, since the thin-walled two-divided cylinder itself has a closed semicircular cross section, the torsional rigidity is remarkably improved, and further, the joint plate is made of a fiber-reinforced composite material thin plate and a honeycomb. Since it has a sandwich structure formed of a core material made of a core, the bending rigidity of the joint plate itself is remarkably improved, and the weight is extremely light. In addition, the thin-walled two-part cylinder is also a fiber-reinforced composite material. Since it has a sandwich structure formed of a skin made of a thin plate and a core material made of a honeycomb core, the bending rigidity and strength are remarkably improved and the weight is extremely reduced.

The tensile / compressive loads and bending / torsion moments transmitted from the first and second thin-walled cylinders are connected to the joint plate via the Ω-shaped connector adhered and fixed from the outside of these thin-walled cylinders. After being transmitted, the joint plate is again transmitted to the first and second thin-walled cylinders on the opposite sides via the Ω-shaped coupler to function as a joint. Since it is bonded to the end portion of the thin-walled cylinder having the U-shaped notch portion and integrated with the joining plate, the strength and rigidity of the end portion of the thin-walled cylinder portion due to the presence of the U-shaped notch can be prevented from being reduced, and
Since the mold connector is adhered from both sides of the joining plate so as to wrap the first and second thin cylinders, a circular closed cross section is formed and torsional rigidity is remarkably improved, so that it is possible to significantly reduce the weight of the joint portion. In addition, this Ω-type connector has a honeycomb core as a core material and has a sandwich section formed by using a fiber-reinforced composite material thin plate on both surfaces of the skin, so that the bending rigidity is significantly improved. result,
Further weight reduction is possible.

Further, the tensile / compression loads and bending / torsion moments transmitted from the first and second thin-walled cylinders are adhered and fixed from the outside of these thin-walled cylinders by Ω.
It is transmitted to the joining plate through the thin-walled two-divided cylinder inserted and adhered to the end of the mold connector and the thin-walled cylinder, and then again.
From this joint plate, it is transmitted to the first and second thin-walled cylinders on the opposite sides through the Ω-shaped connector and the thin-walled two-divided cylinder, respectively, and functions as a joint.
Since the mold connector is bonded to the end of the thin-walled cylinder having the U-shaped cutout and integrated with the joining plate, the strength and rigidity of the end of the thin-walled cylinder due to the presence of the U-shaped cutout can be prevented from decreasing. Since the Ω type connector has a honeycomb core as the core material and the skins on both sides have a sandwich cross section formed by using a fiber-reinforced composite thin plate, the Ω type connector itself is also extremely lightweight, and has bending rigidity and strength. Is significantly improved, and further weight reduction is possible. Furthermore, since the thin-walled two-divided cylinder also has a sandwich structure formed of a skin made of a fiber-reinforced composite material thin plate and a core material made of a honeycomb core, the bending rigidity and the strength are remarkably improved, and the thin-walled thin-walled cylinder 2 The split cylinder itself is also extremely lightweight,
In addition, the thin-walled 2-part cylinder itself has a closed cross section,
Furthermore, since the Ω type connector is also bonded and integrated from both sides of the joint plate, a circular closed cross section is formed, and torsional rigidity and torsional strength are remarkably improved, and further weight reduction is possible.

The tensile / compressive loads and bending / torsion moments transmitted from the first and second thin-walled cylinders are connected to the joint plate via the Ω-shaped connector adhered and fixed from the outside of these thin-walled cylinders. After being transmitted, the joint plate is again transmitted to the first and second thin-walled cylinders on the opposite sides via the Ω-shaped coupler to function as a joint. Since it is bonded to the end portion of the thin-walled cylinder having the U-shaped cutout and integrated with the joining plate, the strength and rigidity of the end of the thin-walled cylinder due to the presence of the U-shaped cutout is prevented. Also, Ω
The mold connector is adhered from both sides of the bonding plate so as to enclose the first and second thin cylinders, thereby forming a circular closed cross section, and the torsional rigidity is remarkably improved and the weight can be reduced. Since it has a honeycomb core as a core material and a sandwich cross section formed by using fiber reinforced composite material thin plates on both surface skins, the bending rigidity is remarkably improved and further weight reduction is possible. Since the joining plate also has a sandwich structure formed by a skin made of a fiber-reinforced composite material thin plate and a core material made of a honeycomb core, the bending rigidity is remarkably improved, and the weight can be further reduced. Therefore, when these joining plate and Ω-type connector are inserted into the ends of the thin-walled cylinder and are adhesively bonded and integrated with the first and second thin-walled cylinders, they intersect at an arbitrary angle. As a thin-walled cylindrical joint, not only tensile / compressive strength, but also bending / torsion strength and bending / torsional rigidity are dramatically improved, and as a result, the structure of the cross-type adhesive joint itself becomes extremely simple. Therefore, not only machining becomes very easy and the cost can be greatly reduced, but also these excellent mechanical characteristics can optimize the structural design and further reduce the weight.

The tensile / compressive loads and bending / torsion moments transmitted from the first and second thin-walled cylinders are adhered and fixed from the outside of these thin-walled cylinders by Ω.
Thin wall 2 inserted and bonded to the end of the mold connector and thin cylinder
It is transmitted to the joining plate through the split cylinder, then
Again, this joint plate is transmitted to the first and second thin-walled cylinders on the opposite sides through the Ω-shaped coupler and the thin-walled two-divided cylinder, respectively, and functions as a joint. Since it is bonded to the end of the thin-walled cylinder having the U-shaped cutout and integrated with the joint plate, the strength and rigidity of the end of the thin-walled cylinder due to the presence of the U-shaped cutout can be prevented and the Ω type connection can be prevented. The child is bonded from both sides of the joining plate to form a circular closed cross section, so the torsional rigidity and strength are significantly improved, and the thin-walled two-part cylinder itself also has a semi-circular closed cross section, which results in torsional rigidity. -Strength is significantly improved. In addition, the Ω-type connector has a sandwich section formed by using a honeycomb core for the core material and fiber reinforced composite material thin plates on both sides of the skin, so the bending rigidity is significantly improved and the weight is even lighter. In addition, since the joining plate also has a sandwich structure formed of a core material made of a skin and a honeycomb core made of a fiber-reinforced composite thin plate, the bending rigidity and strength of the joining plate itself is significantly improved. Moreover, since the thin-walled two-divided cylinder also has the sandwich structure formed of the core made of the skin made of the fiber-reinforced composite material thin plate and the honeycomb core, only the bending rigidity and the strength are remarkably improved. Of course, these joint plates, the thin-walled two-divided cylinders, and the Ω-type connectors themselves are made lighter, and the joints themselves are also made up of them. It will be significantly reduced in weight.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a first embodiment of a cross-type adhesive joint according to the present invention.

FIG. 2 is a configuration diagram of a second embodiment of the cross-type adhesive joint according to the present invention.

FIG. 3 is a configuration diagram of a third embodiment of the cross-type adhesive joint according to the present invention.

FIG. 4 is a configuration diagram of a fourth embodiment of the cross-type adhesive joint according to the present invention.

FIG. 5 is a configuration diagram of a fifth embodiment of the cross-type adhesive joint according to the present invention.

FIG. 6 is a configuration diagram of a sixth embodiment of the cross-type adhesive joint according to the present invention.

FIG. 7 is a configuration diagram of a seventh embodiment of the cross-type adhesive joint according to the present invention.

FIG. 8 is a configuration diagram of an eighth embodiment of the cross-type adhesive joint according to the present invention.

FIG. 9 is a configuration diagram of a conventional cross-type adhesive joint.

[Explanation of symbols]

 1 1st thin-walled cylinder 2 2nd thin-walled cylinder 3 U-shaped notch 4 Bonding plate 5 Bonding plate skin 6 Bonding plate Honeycomb core 7 Thin-walled 2-split cylindrical skin 8 Thin-walled 2-split cylindrical honeycomb core 9 Ω type connector 10 Ω Type connector skin 11 Ω type connector Honeycomb core 12 Cross type connector

Claims (8)

[Claims] 1. In a joint composed of thin-walled cylinders, the first thin-walled cylinder and the second thin-walled cylinder are joined with an arbitrary inclination when they intersect with each other. First and second thin-walled cylinders having U-shaped notches cut in the longitudinal direction at two circumferentially symmetrical positions, and U-shaped cuts at the ends of the first and second thin-walled cylinders It has a Ω-shaped cross section having a joining plate to be inserted into the notch, a cylindrical side surface and two flat surfaces that are adhesively fixed so as to wrap the joining plate from the outside in order to integrate the first and second thin-walled columns and the joining plate. A cross-type adhesive joint comprising eight Ω-type connectors. 2. In a joint composed of a thin-walled cylinder, the first thin-walled cylinder and the second thin-walled cylinder are joined with an arbitrary inclination when they intersect with each other. First and second thin-walled cylinders having U-shaped notches cut in the longitudinal direction at two circumferentially symmetrical positions, and U-shaped cuts at the ends of the first and second thin-walled cylinders 8 has a Ω-shaped cross section having a joining plate to be inserted into the notch, a cylindrical side face and two flat surfaces that are adhesively fixed so as to wrap the joining plate from the outside so as to integrate the first and second thin-walled columns and the joining plate. Ω-type connectors, the first and second thin-walled cylinders, and the semi-circular gaps formed between the first and second thin cylinders and the joining plate, and are adhesively bonded to each other. The core material is a honeycomb core, and the skin is a fiber-reinforced composite material. Semi with sandwich structure using thin plates Crossover adhesive joint, characterized in that it consists of a thin two-piece cylinder having a shape cross-section. 3. A joint comprising a thin-walled cylinder and a first thin-walled cylinder and a second thin-walled cylinder which are joined with an arbitrary inclination when they intersect with each other. First and second thin-walled cylinders having U-shaped notches cut in the longitudinal direction at two circumferentially symmetrical positions, and U-shaped cuts at the ends of the first and second thin-walled cylinders A joining plate having a sandwich structure formed by using a honeycomb core as a core material and a fiber-reinforced composite material thin plate as a skin on both sides, which is inserted into a notch, and the first and second thin cylinders and the bonding plate A cross-type adhesive joint characterized by comprising eight cylindrical Ω-shaped connectors having an Ω-shaped cross section having a cylindrical side surface and two flat surfaces that are adhesively fixed so as to be wrapped from the outside in order to realize the same. 4. A joint comprising a thin cylinder and a first thin cylinder and a second thin cylinder which are joined with an arbitrary inclination when they intersect each other. First and second thin-walled cylinders having U-shaped notches cut in the longitudinal direction at two circumferentially symmetrical positions, and U-shaped cuts at the ends of the first and second thin-walled cylinders A joining plate having a sandwich structure formed by using a honeycomb core as a core material and a fiber-reinforced composite material thin plate as a skin on both sides, which is inserted into a notch, and the first and second thin cylinders and the bonding plate Between the first and second thin-walled cylinders and the joint plate, and eight Ω-shaped connectors having a Ω-shaped cross section with a cylindrical side surface and two flat surfaces that are adhesively fixed so as to wrap from outside Inserted in each semi-circular gap that can be Adhesively bonded honeycomb core in the core material, cross-type adhesive joint, characterized in that it consists of a thin two-piece cylinder having a semi-circular cross-section having a sandwich structure fiber-reinforced composite material sheet was used to form the skin. 5. A joint comprising thin-walled cylinders, wherein the first thin-walled cylinder and the second thin-walled cylinder are joined with an arbitrary inclination when they intersect with each other. First and second thin-walled cylinders having U-shaped notches cut in the longitudinal direction at two circumferentially symmetrical positions, and U-shaped cuts at the ends of the first and second thin-walled cylinders The joining plate to be inserted into the notch, and the first and second thin-walled cylinders and the joining plate are bonded and fixed so as to be wrapped from the outside so as to be integrated, the core material is a honeycomb core, and the skins on both sides are fiber-reinforced composite material thin plates. A cross-type adhesive joint characterized in that it has a sandwich structure formed by using and is composed of eight Ω-shaped connectors having a Ω-shaped cross section having a cylindrical side surface and two flat surfaces. 6. A joint comprising a thin-walled cylinder and a first thin-walled cylinder and a second thin-walled cylinder which are joined with an arbitrary inclination when they intersect with each other. First and second thin-walled cylinders having U-shaped notches cut in the longitudinal direction at two circumferentially symmetrical positions, and U-shaped cuts at the ends of the first and second thin-walled cylinders The joining plate to be inserted into the notch, and the first and second thin-walled cylinders and the joining plate are bonded and fixed so as to be wrapped from the outside so as to be integrated, the core material is a honeycomb core, and the skins on both sides are fiber-reinforced composite material thin plates. Of 8 Ω-type connectors having a sandwich cross-section formed by using, and having a Ω-shaped cross-section having a cylindrical side surface and two planes, the first and second thin-walled cylinders, and the bonding plate. Inserted in each semicircular gap Adhesively bonded Te, honeycomb core for the core material, cross-type adhesive joint, characterized in that it consists of a thin two-piece cylinder having a semi-circular cross-section having a sandwich structure fiber-reinforced composite material sheet was used to form the skin. 7. A joint comprising a thin-walled cylinder and a first thin-walled cylinder and a second thin-walled cylinder which are joined with an arbitrary inclination when they intersect with each other. First and second thin-walled cylinders having U-shaped notches cut in the longitudinal direction at two circumferentially symmetrical positions, and U-shaped cuts at the ends of the first and second thin-walled cylinders A joining plate having a sandwich structure formed by using a honeycomb core as a core material and a fiber reinforced composite material thin plate as a skin on both sides, which is inserted into a notch, and the first and second thin-walled cylinders and the bonding plate are integrally formed. Ω type that has a sandwich structure in which it is adhered and fixed so as to wrap it from the outside in order to make it into a core, a honeycomb core is used for the core material, and fiber reinforced composite material thin plates are used for the skins on both sides, and it has a cylindrical side surface and two flat surfaces. 8 with a shaped cross section Crossover adhesive joint, characterized in that it consists of a of Ω-type binding molecules. 8. A joint comprising a thin-walled cylinder and a first thin-walled cylinder and a second thin-walled cylinder which are joined with an arbitrary inclination when they intersect with each other. First and second thin-walled cylinders having U-shaped notches cut in the longitudinal direction at two circumferentially symmetrical positions, and U-shaped cuts at the ends of the first and second thin-walled cylinders A joining plate having a sandwich structure formed by using a honeycomb core as a core material and a fiber reinforced composite material thin plate as a skin on both sides, which is inserted into a notch, and the first and second thin-walled cylinders and the bonding plate are integrally formed. It has a sandwich structure in which it is adhesively fixed so as to wrap it from the outside so that it is formed by using a honeycomb core for the core material and a fiber reinforced composite material thin plate for the skin, and has a cylindrical side surface and two flat surfaces. 8 Ω with cross section The connector, the first and second thin-walled cylinders, and the joining plates are inserted into the semicircular gaps formed between the joining plates to be adhesively joined, and the honeycomb core is used as the core and the fiber-reinforced composite material thin plate is used as the skin. A cross-type adhesive joint comprising a thin-walled two-divided cylinder having a semicircular cross section having a formed sandwich structure.