WO2015056308A1

WO2015056308A1 - Fastening member for fitted structure, fitted structure, and structural body comprising fastening member for fitted structure

Info

Publication number: WO2015056308A1
Application number: PCT/JP2013/078010
Authority: WO
Inventors: 博青山; 泰樹北
Original assignee: 株式会社日立製作所
Priority date: 2013-10-15
Filing date: 2013-10-15
Publication date: 2015-04-23
Also published as: JPWO2015056308A1

Abstract

　Provided are a fastening member for a fitted structure, a fitted structure, and a structural body comprising a fastening member for a fitted structure, whereby members including FRP members and the like can be firmly fastened together. A fastening member is provided with: a through-member (11, 12, 13) inserted through a first member (1) having an insertion part (2), a load (F) being inputted or transmitted to the through-member; and at least two annular members inserted into the through-member with a wedge member (9, 21, 22, 94, 95) and a hold-down member (10, 19, 20) as one set, and arranged so that the insertion part in the first member is sandwiched by a set on one side and a set on the other side. The fastening member is configured such that the hold-down member is secured directly or indirectly to the through-member, the wedge member is arranged between the hold-down member and the first member so as to be in contact with both, and the surface of the wedge member that is in contact with the hold-down member forms a prescribed angle (θ) other than 90 degrees with the axis of the through-member as viewed in cross section.

Description

Fastening member for fitting structure, fitting structure, and structure provided with fastening member for fitting structure

The present invention relates to a fastening member for a fitting structure, a fitting structure, and a structure including a fastening member for the fitting structure.

As an international trend in recent years, a fiber reinforced resin material (FRP: Fiber Reinforced) with various characteristics such as high rigidity, light weight, and high strength is used as a material that can replace metal steel plates used for various large structures. (Plastics) is drawing attention.

Among them, carbon fiber reinforced resin (CFRP), for example, is a material with high international competitiveness, such as a major Japanese company that maintains a top share in the world's production capacity for many years in combination with advanced integrated molding technology. However, in comparison with iron, for example, the specific gravity is about 1/4 and the specific strength (mass specific strength) is about 10 times as excellent.

In other words, in comparison with iron, the weight is only 1/4 if it is the same volume, and only 10% if it is the same strength, and the strength can be 10 times stronger if it is the same weight. For this reason, FRP members are regarded as promising as an initiator (strategic resource) for strengthening not only the competitiveness of the product itself but also the industrial competitiveness of Japan, and consequently the competitiveness of the entire Japanese economy.

Therefore, in corporate activities that support industrial and social infrastructures, the active utilization of FRP is rapidly spreading as a management strategy regardless of the size of domestic and overseas. It is in the trend to be adopted.

It is understood that such an FRP structure is integrally molded to exhibit its original strength and utility. However, in general, it takes a huge amount of money on the order of several hundred million yen to make a large mold for molding, and even if it is manufactured, it changes according to customer needs such as model changes (including minor changes). In some cases, it is difficult to cope with this, and it is necessary to recreate the mold from scratch.

For this reason, in reality, there are very many scenes in which metal parts and FRP structures are fastened and used instead of integral molding, instead of metal steel plates. As a fastening method, in addition to fastening by adhesion, there is a method of mechanical fastening using a bolt or the like.

In the fastening method of Patent Document 1, when bolting plate-like bodies together, the bolt axial force is devised to be uniformly transmitted to the plate material through a tapered washer in the bolt hole.

In the fastening method of Patent Document 2, the bolt axial force is devised so as not to relax through a spring member in addition to the tapered washer.

In the fastening method of Patent Document 3, when FRP members are fastened together, the FRP member is sandwiched between steel plates, and a large number of protrusions are provided on the contact surface with the FRP member, thereby increasing the friction coefficient and causing slip deformation. It is fastened with bolts while preventing.

In the fastening method of Patent Document 4, the position of the bolt hole when the FRP member is bolted with a metal plate is selected to a dimension that does not cause destruction of the FRP member.

In Patent Document 5, when bolts that are easily damaged such as FRP members are bolted, the nuts have a double structure and are free to rotate with each other. Is high.

JP 2004-108497 A JP 2007-303570 A JP-A-6-026109 JP-A-6-017487 JP 2012-062984 A

However, in any of the fastening structures of Patent Documents 1 to 5, when a load in a direction perpendicular to the bolt axis is applied, the surface pressure between the fastened members does not increase and a firm fastening state is not obtained. .

The present invention solves the above-mentioned conventional problem, when an arbitrary hole is processed in the FRP structure, a pin or a bolt is passed through the hole, and a load is input in a direction perpendicular to the axis of the bolt Even in the case, the fastening member for the fitting structure, the fitting structure, and the fastening for the fitting structure are such that a force that compresses the member to be fastened is applied and the fastening state becomes stronger and the FRP hole portion is not destroyed. It aims at providing the structure which comprised the member.

In order to solve the above-described problems, a fitting member for a fitting structure to which the present invention is applied, a fitting structure, and a structure including a fastening member for the fitting structure are inserted into a first member having an insertion portion. In addition, a penetrating member to which load is input / transmitted, a wedge member and a pressing member are inserted into the penetrating member as a set, and the insertion portion of the first member is sandwiched between the one set and the other set At least two sets of annular members, the pressing member is directly or indirectly fixed to the penetrating member, and the wedge member is interposed between the pressing member and the first member, The contact surfaces of the pressing member and the wedge member are arranged so as to be in contact with each other, and are configured to form a predetermined angle other than 90 degrees with respect to the axis of the penetrating member in a cross-sectional view. Features.

According to the present invention, even when a load in the direction perpendicular to the axis acts on a penetrating member such as a pin or bolt, a component force that strongly presses the FRP member (first member) acts on the annular member having a predetermined taper angle. A fastening member for a fitting structure, a fitting structure, and a structure including a fastening member for the fitting structure can be provided.

It is a whole perspective view of the FRP fitting structure of the present invention. It is an exploded view of the A part and B part which are the principal parts of FIG. It is the figure which represented typically a mode when a load was transmitted to the penetration member. FIG. 2 is a cross-sectional view taken along the line XX in FIG. 1 and is a cross-sectional view of the FRP fitting structure according to the first embodiment of the present invention. It is a schematic diagram explaining the dynamic mechanism based on 1st Embodiment of this invention. It is sectional drawing of the FRP fitting structure based on 2nd Embodiment of this invention. It is sectional drawing of the FRP fitting structure based on 3rd Embodiment of this invention. It is an expanded sectional view of the wedge ring based on 4th Embodiment of this invention. It is an expanded sectional view of the wedge ring based on 5th Embodiment of this invention. It is sectional drawing of the junction part of the FRP pipe and metal pipe based on 6th Embodiment of this invention. It is sectional drawing of the junction part of the FRP pipe and metal pipe based on 7th Embodiment of this invention. It is a top view (top view) of FRP board 1 concerning an 8th embodiment of the present invention. FIG. 13 is a cross-sectional view taken along line YY in FIG. 12. It is sectional drawing of the FRP fitting structure based on 9th Embodiment of this invention. It is sectional drawing of the FRP fitting structure based on 10th Embodiment of this invention. It is sectional drawing of the FRP fitting structure based on the modification of 10th Embodiment of this invention. It is sectional drawing of the FRP fitting structure based on 11th Embodiment of this invention. It is sectional drawing of the FRP fitting structure based on the modification of 11th Embodiment of this invention. It is sectional drawing of the FRP fitting structure based on 12th Embodiment of this invention. It is sectional drawing of the FRP fitting structure based on the modification of 12th Embodiment of this invention. It is sectional drawing of the FRP fitting structure based on 13th Embodiment of this invention. It is a mimetic diagram of power shovel 100 concerning an example of application of the present invention. It is a figure explaining the conventional windmill blade for wind power generation. It is a schematic diagram of the windmill blade for wind power generation concerning the example of application of this invention. It is a perspective view of the windmill blade for wind power generation concerning the example of application of the present invention. It is a schematic diagram explaining the inside of a wind turbine blade for wind power generation according to an application example of the present invention, and is a cross-sectional view taken along the line ZZ in FIG. 24A. It is a block diagram of the centrifuge based on the application example of this invention. It is a schematic diagram of the centrifuge based on the application example of this invention. It is a schematic diagram of the motor vehicle based on the application example of this invention. It is a perspective view of a ship concerning the example of application of the present invention. It is a schematic diagram of the ship based on the application example of this invention. It is a schematic diagram of an aircraft according to an application example of the present invention.

Hereinafter, the FRP fitting structure in which the first member is an FRP member is illustrated as an example of the fastening member for the fitting structure, the fitting structure, and the structure including the fastening member for the fitting structure according to the embodiment of the present invention. Will be described in detail.

Here, the type of FRP is not particularly limited. That is, FRP may be carbon fiber CFRP, glass fiber GFRP, silicon carbide fiber SiCFRP, alumina fiber Al ₂ O ₃ FRP, and aramid fiber AFRP, but is not limited thereto.

It goes without saying that the present invention can also be applied to members other than the FRP, or fastening that combines the FRP member and the metal member.

For convenience of explanation, members common to the drawings are denoted by the same reference numerals, and redundant explanations may be omitted. The schematic diagram is drawn in an easy-to-understand manner by extracting the characteristic part, and the description of the detailed configuration may be discarded as appropriate. The direction axes such as front and rear, up and down, left and right are as described in each figure.

(First embodiment)
FIG. 1 is an overall perspective view of the FRP fitting structure according to the present invention, and FIG. 2 is an exploded view of an A part and a B part which are the main parts of FIG. Details of the application example of this structure will be described later with reference to FIG. 22 and subsequent figures. For example, in the case of the power shovel shown in FIG. 22, a lattice structure (grating) is provided at the connecting portion of the boom 101 and the arm 102 corresponding to the work arm. There is a demand to connect the FRP plate-like body 1 and the FRP pipe 16 having (C part and D part in FIG. 22), and it is applicable to such a part.

First, the configuration of part A in FIG. 2 will be described (as appropriate, cross-reference with FIG. 1). In this portion, a hole (insertion portion) 2 through which a pin or bolt having a circular shape in cross section as the penetrating member 11 passes is formed in the FRP plate 1 that is a fitting type plate. The shape of the hole (insertion portion) 2 may be any shape that allows the penetrating member 11 to pass therethrough, and is not particularly limited. That is, the cross-sectional view may be circular, or the cross-sectional view may have a U-shaped cutout groove. A sleeve 7 is inserted on the outer periphery of the penetrating member 11 as a buffer protection material. Alternatively, the penetrating member 11 may be considered as a component formed by sheathing a separate sleeve 7. 3 is a case where a load acts on the penetrating member 11 in a direction perpendicular to the central axis of the penetrating member 11, for example, the FRP plate 1 is damaged, and fiber breakage has occurred. It is a schematic diagram. The sleeve 7 prevents the penetrating member 11 and the hole 2 of the FRP plate-like body 1 from coming into direct contact and makes it difficult to cause such destruction.

Here, the case where a load is applied to the penetrating member 11 in a direction perpendicular to the central axis of the penetrating member 11 is considered. The reason is that the FRP pipe 16 is point-connected to a pin that is the penetrating member 11, for example. This is because the load / load F is first input to the pin which is the penetrating member 11 as shown in FIG. Further, as another form, a case where the load is transmitted in the order from the FRP plate 1 to the penetrating member 11 can be considered, but even in that case, a mechanism after the load F is transmitted to the penetrating member 11. Can be considered in exactly the same manner as described in the present embodiment.

Subsequently, the description returns to the part A in FIG. The sleeve 7 is processed with a thread groove 8 (not shown; details will be described later), and a pressing ring 10 can be fitted therein. In addition, the wedge ring 9 can be sandwiched between the holding ring 10.

Here, for example, the holding ring 10 is fitted into the thread groove 8 of the sleeve 7, and the wedge ring 9 is sandwiched and inserted into the hole 2 of the FRP plate 1. Similarly, from the opposite side, the FRP plate 1 is sandwiched in the order of the wedge ring 9 and the pressing ring 10, and the pressing ring 10 is fitted into the thread groove 8 of the sleeve 7. When the penetrating member 11 is finally inserted, the assembled state shown in part A of FIG. 1 is obtained.

Next, as for part B in FIG. 2, the outer ring wedge hoop 21 is fitted to the outer peripheral surface of the FRP pipe 16, and the outer ring pressing hoop 19 can be sandwiched from above. Part B of FIG. 1 is a schematic diagram when assembled in this manner.

4 is a cross-sectional view taken along the line XX of FIG.
A circular hole 2 is formed in the FRP plate-like body 1, and a cylindrical sleeve 7 passes therethrough. Therefore, the radius of the cylindrical outer peripheral surface of the sleeve 7 is smaller than the radius of the hole 2.

Further, a penetration member 11 having a circular cross section penetrates the sleeve 7. Further, a thread groove 8 is formed on the outer peripheral surface of the sleeve 7. Further, the wedge ring 9 and the pressing ring 10 are arranged in contact with each other so as to sandwich the FRP plate 1. That is, when the wedge member 9 and the pressing member 10 are used as a pair and two sets of annular members are considered, the annular member is inserted into the penetrating member, and the insertion in the FRP plate-like body (first member) 1 is performed. The part is disposed so as to be sandwiched between the pair on one side and the pair on the other side.

On the inner peripheral surface of the holding ring 10, a thread groove 8 that fits into the screw groove 8 carved on the outer peripheral surface of the sleeve 7 is processed, so that the sleeve 7 and the holding ring 10 are completely fitted to each other. The position of is fixed.

Further, the central axis of the penetrating member 11 is M, the central axis of the thickness of the FRP plate 1 is N, and the regions corresponding to the first quadrant to the fourth quadrant when the coordinate axes are taken in this way are the I regions. ~ IV region. That is, the right front region is the I region, the left front region is the II region, the left rear region is the III region, and the right rear region is the IV region.

At this time, the I region has a line-symmetric structure with the II region with respect to the axis N, and similarly has a line-symmetric structure with the IV region with respect to the axis M. The II region has a line symmetric structure with the I region with respect to the axis N, and similarly has a line symmetric structure with the III region with respect to the axis M. The III region has a line symmetric structure with the IV region with respect to the axis N, and similarly has a line symmetric structure with the II region with respect to the axis M. The IV region has a line symmetric structure with the region III with respect to the axis N, and is similarly formed so as to have a line symmetric structure with the I region with respect to the axis M.

Hereinafter, the I region will be described in detail. Other areas will be described later, but they can be understood in sequence as the I area and the left and right line symmetrical structures.
First, the contact surface (tapered surface) between the wedge ring 9 and the pressing ring 10 makes a predetermined angle θ greater than 0 ° and smaller than 90 ° with respect to the central axis M of the sleeve 7 or the penetrating member 11. Configured (ie, 0 ° <θ <90 °).

Further, the holding ring 10 is fixed so as to fit into the thread groove 8 of the sleeve 7. That is, when the penetrating member 11 and the sleeve 7 receive a load in a direction perpendicular to the axis M and attempt to move in the load direction, the pressing ring 10 is completely interlocked with the movement, and similarly the load direction Configured to move to.

Hereinafter, description will be made based on an example in which a load is input to the penetrating member 11 backward, for example. However, this is only an example, and the

annular members

9 and 10 have a ring shape, the sleeve 7 has a cylindrical shape, and the penetrating member 11 also has a columnar shape. Therefore, it goes without saying that the input direction of the load has structural symmetry in all 360 ° directions.

FIG. 5 is a schematic diagram for explaining a mechanical mechanism when, for example, a load F11 is input to the penetrating member 11 of FIG. 4 in a direction perpendicular to the axis M (rearward).
At this time, the penetrating member 11 receives a load F11 that is a load and moves in the load direction. Then, the outer peripheral surface of the penetrating member 11 comes into contact with the inner peripheral surface of the sleeve 7 soon after. Here, shortly expressed is that there is a certain gap between the sleeve 7 and the penetrating member 11, and when there is almost no gap, the contact is made almost simultaneously with the load. This gap is a convenient gap for inserting the sleeve 7 into the penetrating member 11.

Further, when the input of the load F11 is continued, the penetrating member 11 pushes the entire sleeve 7 backward in the load direction according to the load F11. Furthermore, since the pressing ring 10 is fixed to the sleeve 7 via the screw groove 8, the pressing ring 10 is also pushed down in the load direction in conjunction with the movement of the sleeve 7.

That is, the holding ring 10 fixed to the sleeve 7 tries to move in the direction of the load F11 input in a direction perpendicular to the axis M of the penetrating member 11 (F12). At this time, if the contact surface of the holding ring 10 and the wedge ring 9 is formed to be an inclined surface having an inclination angle θ (an angle θ formed with the axis M), the wedge ring 9 is FRP as a component force of the force F12. The component force F13 in a direction that compresses the plate-like body 1 can be generated.

Next, the II region will be described.
The II region is formed into a line-symmetric structure via the I region and the axis N. Therefore, for example, when the load F11 is continuously input to the penetrating member 11 in the direction perpendicular to the axis M (rearward), the penetrating member 11 moves the entire sleeve 7 rearward in the load direction according to the load F11. Press down. Furthermore, since the pressing ring 10 is fixed to the sleeve 7 via the screw groove 8, the pressing ring 10 is also pushed down in the load direction in conjunction with the movement of the sleeve 7.

That is, the holding ring 10 fixed to the sleeve 7 tries to move in the direction of the load F11 input in a direction perpendicular to the axis M of the penetrating member 11 (F12). At this time, the contact surface of the holding ring 10 and the wedge ring 9 is formed to be an inclined surface having an inclination angle θ (an angle θ formed with the axis M), so that the wedge ring is used as a component force of the force F12. It is possible to generate a component force F13 in such a direction that 9 compresses the FRP plate 1.

Next, the III region and the IV region will be described together.
The III and IV regions have a point symmetry and a line symmetry, respectively, from the I region. However, the acting direction of the force F12 received by the holding ring 10 fixed to the thread groove 8 of the sleeve 7 is, for example, that the load F11 is continuously applied to the penetrating member 11 in a direction perpendicular to the axis M (rearward). When input, the direction is exactly the same as F12 in the I region.

That is, the F12 in the III region and the IV region have the same size as the F12 in the I region, but the orientation is not symmetric and is asymmetric. For this reason, the contact surface (tapered surface) between the wedge ring 9 and the pressing ring 10 is a predetermined angle θ (ie, greater than 0 ° and smaller than 90 ° with respect to the central axis M of the sleeve 7 or the penetrating member 11). Even if it is formed so that 0 ° <θ <90 °), the force F12 acting on the holding ring 10 generates the component force F13 that compresses the FRP plate-like body 1 through the wedge ring 9. I will not let you.

(Action / Effect)
The actions and effects of the first embodiment are summarized as follows.
When a load F11 is input to the penetrating member 11 in a direction perpendicular to the axis M of the penetrating member 11, the pressing ring 10 fixed to the sleeve 7 tries to move in the direction of the load F11 (F12). At that time, by forming the contact surface (tapered surface) of the holding ring 10 and the wedge ring 9 to be an inclined surface having an inclination angle θ (an angle θ formed with the axis M), the direction of the load F11 is A component force F13 in a direction that compresses the FRP plate-like body 1 is applied to the wedge ring 9 at the opposite position as a component force of the force F12.

As explained in the background art, FRP generally shows excellent characteristic values. However, although the compressive strength with respect to the fiber lamination direction is very large, the fiber is brittle with respect to the load in the fiber non-lamination direction, which is a direction orthogonal to the fiber lamination direction, and easily breaks.

Therefore, if possible, we want to reduce the number of joints by integral molding, but the larger the scale, the higher the cost of manufacturing the mold and the lack of flexibility in changing the model, which makes it difficult to use. It cannot be denied that there was a side.

However, regarding the FRP plate-like body 1 having such properties, it is unavoidable that the FRP plate-like body 1 is not integrally formed, and even when one or a plurality of FRPs or different members are fastened, if the invention of this embodiment is applied, A part of the load F11 input in the fiber non-stacking direction via the penetrating member 11 may be converted into a component force F13, which is a compressive force in the fiber stacking direction of the FRP plate-like body 1, and transferred. it can.

The component force F13 increases as the load displacement amount of the penetrating member 11 increases because the tapered surfaces of the pressing ring 10 and the wedge ring 9 have the inclination angle θ.

For this reason, as the load displacement amount of the penetrating member 11 increases, the wedge ring 9 strengthens the FRP plate-like bodies 1 with each other so that the penetrating member 11 or the sleeve 7 is not displaced further in the direction of the load F11. It will be sandwiched by force and will function as a stopper.

Thereby, destruction of an inner peripheral surface by the penetrating member 11 (sleeve 7 when inserting the sleeve 7) in the hole 2 of the FRP plate-like body 1 due to excessive contact can be prevented, and the strength is further increased. It produces the effect that reliability can be improved.

Also, in the past, the FRP member was divided into the invention of the present embodiment even in situations where the FRP member was actively hesitant to use due to various restrictions such as size increase and cost increase. By having the fitting and fastening shown, there is a possibility of becoming an initiating agent that promotes the conversion of the material to the FRP member.

Moreover, since the sleeve 7 and the holding ring 10 have a screw fastening fitting structure by the screw groove 8, the strength of the fastening force can be controlled by adjusting the fastening torque at the time of screw fastening. .

In addition, when a defective part occurs, in the conventional welding joining, one end has to be removed and replaced, which is a difficult work, but if the invention of this embodiment is used for the fastening part, screw fastening Therefore, there is an effect that maintenance such as removing and replacing only a member having a defective portion can be easily performed.

(Second Embodiment)
A second embodiment of the present invention will be described with reference to FIG. In addition, about the structure similar to 1st Embodiment, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

FIG. 6 is a cross-sectional view of the FRP fitting structure according to the second embodiment.
In FIG. 6, the difference from the first embodiment (FIG. 4) is that the sleeve 7 is eliminated or the penetrating member 12 is integrated with the sleeve 7 and the penetrating member 11. That is, the thread groove 8 is processed in a part or all of the outer peripheral surface of 12. Other configurations are the same as those in the first embodiment.

The screw groove 8 fitted into the screw groove 8 on the outer peripheral surface of the penetrating member 12 is processed on the inner peripheral surface of the pressing ring 10. Note that the cylindrical shape of the penetrating member 12 is depicted in FIG. 6 in which the portion of the fitting region with the holding ring 10 by the thread groove 8 is expanded in diameter compared to the diameter of both end portions of the penetrating member 12. .

This is for the convenience of assembling the holding ring 10 into the penetrating member 12, and there is no need to change the diameter. When the penetrating member 12 is formed without changing the diameter, the thread groove 8 may be carved from both ends of the penetrating member 12 to a position (predetermined fixed position) where the pressing ring 10 is to be mounted. . When changing the diameter, the distance to cut the thread groove 8 can be made shorter than this. As a result, the manufacturing time can be shortened and the working efficiency can be improved, and the wear rate of the blade that engraves the thread groove 8 can be reduced and the life of the blade replacement can be extended, thereby contributing to the suppression of capital investment costs. It becomes possible to do.

Also in this embodiment, the contact surface (tapered surface) between the wedge ring 9 and the pressing ring 10 is configured to form a predetermined angle θ greater than 0 ° and smaller than 90 ° with respect to the axis of the penetrating member 12. (That is, 0 ° <θ <90 °).

Further, the holding ring 10 is fixed so as to be fitted into the thread groove 8 carved in the penetrating member 12. That is, when the penetrating member 12 receives a load in a direction perpendicular to the axis and tries to move in the load direction, the pressing ring 10 is completely interlocked with the movement and similarly moves in the load direction. It is configured as follows.

(Action / Effect)
Even if comprised in this way, there can exist the same effect | action and effect with the mechanism similar to 1st Embodiment.
In other words, when a load is applied to the penetrating member 12 in a direction perpendicular to the axis of the penetrating member 12, the holding ring 10 fixed to the penetrating member 12 moves to the axis of the penetrating member 12 in conjunction with the movement of the penetrating member 12. Attempts to move in the load direction, which is perpendicular to the direction.

At that time, due to the tapered surface between the holding ring 10 and the wedge ring 9, a component force that compresses the FRP plate-like body 1 acts between the wedge rings 9 located on the opposite side to the load direction.

Thus, also in this embodiment, a part of the load acting in the direction perpendicular to the axis of the penetrating member 12 with the thread groove 8 is converted into a compressive force in the fiber lamination direction of the FRP plate 1 as a component force. Is done. For this reason, destruction at the hole 2 can be prevented, and the strength reliability is improved.

In addition, since the penetrating member 12 and the pressing ring 10 are screw-fastened, there is an effect that the fastening force can be easily controlled and maintained. Further, since the penetrating member 12 is directly fixed to the pressing ring 10 without using the sleeve 7, the number of parts can be reduced to reduce the cost, the assembly man-hour can be reduced, and the work efficiency can be improved. Can do.

(Third embodiment)
A third embodiment of the present invention will be described with reference to FIG. In addition, about the structure similar to 1st, 2nd embodiment, the same code | symbol is attached | subjected and the overlapping description is abbreviate | omitted.

FIG. 7 is a cross-sectional view of the FRP fitting structure according to the third embodiment.
In FIG. 7, the difference from the second embodiment (FIG. 6) is that the penetrating member 12 has a columnar shape, but the penetrating member 13 has a hollow cylindrical shape around its central axis, and has a cylindrical shape. Different parts. Other parts are the same as in the second embodiment.

That is, the thread groove 8 is processed in part or all of the outer peripheral surface of the penetrating member 13. A wedge ring 9 and a holding ring 10 are arranged so as to sandwich the FRP plate 1.

Further, the inner circumferential surface of the pressing ring 10 is processed with the thread grooves 8 that fit into the thread grooves 8 on the outer circumferential surface of the penetrating member 13. The tapered surface where the wedge ring 9 and the pressing ring 10 are in contact is configured to form a predetermined angle θ greater than 0 ° and smaller than 90 ° with respect to the axis of the penetrating member 13 (that is, 0 ° <θ <90). °).

Further, the holding ring 10 is fixed so as to be fitted into the thread groove 8 carved in the penetrating member 13. That is, when the penetrating member 13 receives a load in a direction perpendicular to the axis and tries to move in the load direction, the pressing ring 10 is completely interlocked with the movement and similarly moves in the load direction. It is configured as follows.

(Action / Effect)
Even if comprised in this way, there can exist the same effect | action and effect with the mechanism similar to 2nd Embodiment.
In other words, when a load is applied to the penetrating member 13 in a direction perpendicular to the axis of the penetrating member 13, the holding ring 10 fixed to the penetrating member 13 moves to the axis of the penetrating member 13 in conjunction with the movement of the penetrating member 13. Attempts to move in the load direction, which is perpendicular to the direction.

Thus, also in this embodiment, a part of the load acting in the direction perpendicular to the axis of the penetrating member 13 with the thread groove 8 is converted into a compressive force in the fiber lamination direction of the FRP plate 1 as a component force. Is done. For this reason, destruction at the hole 2 can be prevented, and the strength reliability is improved.

In addition, since the penetrating member 13 and the pressing ring 10 are screw-fastened, there is an effect that the fastening force can be easily controlled and maintained. In addition, since the penetrating member 13 is directly fixed to the holding ring 10 without the sleeve 7, the number of parts can be reduced to reduce the cost, the assembly man-hour can be reduced, and the work efficiency can be improved. Can do.

Furthermore, since the penetrating member 13 is hollow around the central axis, the penetrating member 13 itself can be reduced in weight. Thereby, while being able to reduce the material cost of the penetration member 13, it can contribute to the weight reduction of the whole structure.

(Fourth embodiment)
A fourth embodiment of the present invention will be described with reference to FIG.
FIG. 8 is an enlarged cross-sectional view of the wedge ring 94 in the fourth embodiment. For example, the wedge ring 9 in FIG. 4 (first embodiment), FIG. 6 (second embodiment), and FIG. 7 (third embodiment). It can be applied to such parts. The same components as those in the first to third embodiments are denoted by the same reference numerals, and redundant description is omitted.

The wedge ring 94 of the present embodiment is provided with a plurality of protrusions 14 on the surface side in contact with the FRP plate 1 along the circumferential surface of the ring. This wedge ring 94 is used in exchange for the wedge ring 9 of FIG. 4 (first embodiment), FIG. 6 (second embodiment), and FIG. 7 (third embodiment), for example. At this time, the wedge ring 9 on only one side may be replaced. However, if it is replaced, it is more preferable to replace both sides because the component force for compressing the FRP plate 1 is equally applied. is there.

(Action / Effect)
Even in the fitting structure provided with the wedge ring 94 according to the present embodiment, when a load is applied in the direction perpendicular to the axes of the penetrating

members

11, 12, and 13, a part of the load is inclined to the wedge ring 94. Is divided by the compressive force in the fiber lamination direction of the FRP plate 1.

At this time, a frictional force is generated against the force that the wedge ring 94 slightly slides on the surface of the FRP plate-like body 1, but the plurality of protrusions 14 have an effect of greatly increasing the friction coefficient at this time. .

Therefore, the load resistance until the penetrating

members

11, 12, 13 or the sleeve 7 directly contact the inner peripheral surface of the hole 2 of the FRP plate-like body 1 can be further increased. The greater the load resistance, the greater the magnitude of the compressive component force F13 in the fiber lamination direction depending on the inclination angle θ of the tapered surface.

For this reason, the wedge rings 94 further function as anti-slip stoppers, can suitably prevent local breakage in the hole 2, and further improve the strength reliability of the FRP plate 1. Give birth.

(Fifth embodiment)
A fifth embodiment of the present invention will be described with reference to FIG.
FIG. 9 is an enlarged cross-sectional view of the wedge ring 95 according to the fifth embodiment. FIG. 8 (fourth embodiment) differs from FIG. 8 in that there is no plurality of protrusions 14 provided on the ring peripheral surface, and a friction plate 15 is provided instead. All other parts are the same as in the fourth embodiment. Note that the same components as those in the first to fourth embodiments are denoted by the same reference numerals, and redundant description is omitted.

The wedge ring 95 of the present embodiment is impregnated with an epoxy resin in a cloth woven with orthogonal organic fibers on the surface side in contact with the FRP plate 1 along the circumferential surface of the ring, and heated and pressed. A molded friction plate 15 is fixed.

As the organic fiber, for example, a fiber manufactured from polybenzimidazole, polyparaphenylenebenzobisoxazole, aromatic polyamide, polyarylate, aromatic polyester, or the like can be used.

These organic fibers may be long fibers or may be cut as short as about 1 mm to 10 mm.

Similar to the fourth embodiment, in this embodiment, a frictional force is generated against the force that the wedge ring 95 slightly slides on the surface of the FRP plate-like body 1. There is an effect of greatly increasing the friction coefficient.

Therefore, the load resistance until the penetrating

members

By the way, when the wedge ring 94 according to the fourth embodiment is used in a state in which the excess weight F11 is repeatedly and periodically applied to the penetrating

members

11, 12, and 13, the FRP plate-like body 1 in the fiber lamination direction is used. Synchronously with the force F13 which is a compression (surface pressure) component force, ON / OFF of the input is periodically repeated, so that a strong frictional force by the protrusion 14 causes the contact surface between the wedge ring 94 and the FRP plate-like body 1 There is a risk that it will eventually wear out and eventually break down.

According to this embodiment, even when a load is repeatedly applied periodically under the action of the high surface pressure component force F13, the organic fiber has a smaller friction coefficient than the protrusion 14 and has a stable friction coefficient for a long time. By using the FRP friction plate 15, it is possible to suitably prevent wear destruction of the holes 2.

Specifically, the friction coefficient of the smooth plate of the wedge ring 9 in the first to third embodiments is μ1, the friction coefficient of the protrusion 14 of the wedge ring 94 in the fourth embodiment is μ4, and the wedge ring 95 in the present embodiment is Assuming that the friction coefficient by the friction plate 15 is μ5, a friction coefficient having a magnitude relationship satisfying μ1 <μ5 <μ4 is ideal.

In such a case, the local fracture of the FRP plate-like body 1 in the hole 2 due to the compressive component force F13 acting between the wedge rings 95 and the friction force generated in proportion thereto is too strong. Can be more suitably prevented, and the strength reliability of the FRP plate-like body 1 can be further improved.

(Action / Effect)
The operational effects of this embodiment will be summarized again. In the present embodiment, an organic fiber FRP friction plate 15 having a friction coefficient smaller than that of the protrusion 14 and having a stable friction coefficient for a long period of time is used.

That is, the friction coefficient of the smooth plate of the wedge ring 9 in the first to third embodiments is μ1, the friction coefficient of the projection 14 of the wedge ring 94 in the fourth embodiment is μ4, and the friction plate 15 of the wedge ring 95 in the present embodiment. Assuming that the coefficient of friction is μ5, the FRP friction plate 15 having a size relationship satisfying μ1 <μ5 <μ4 is used.

Thereby, even when a load is repeatedly applied periodically under the action of the high surface pressure component force F13, there is an effect that it is possible to suitably prevent the wear destruction of the hole 2.

(Sixth embodiment)
A sixth embodiment of the present invention will be described with reference to FIG.
In the present embodiment, for example, the first member in the first embodiment is composed of a second member and a third member that both have the insertion portion 2 and are overlapped so that the insertion portions of each other coincide with each other. Is provided with a male screw at a predetermined position on its outer periphery, and at least one side of the fixing portion between the pressing member and the penetrating member is formed by a nut provided with a female screw that is screwed to the male screw. Think about the case. Therefore, for example, when the second member and the third member are different pipe materials and are fastened together, a case is considered where the load input is performed not from the through member but from the peripheral surface of the pipe.

Note that the pipes are not limited to different types but may be the same type. In the following, a case where any one of the pipes is an FRP pipe will be described, but the FRP pipe is not necessarily included. The same components as those in the first to fifth embodiments are denoted by the same reference numerals, and redundant description is omitted.

FIG. 10 is a cross-sectional view of the joint between the FRP pipe 16 and the metal pipe 17. The FRP pipe (second member) 16 is fitted so as to overlap the outer peripheral portion of the metal pipe (third member) 17. That is, the FRP pipe (second member) 16 and the metal pipe (third member) 17 are arranged so that the axial directions thereof coincide. A plurality of bolt holes 18 are machined in the circumferential direction in the overlapping portion between the two. It should be noted that the bolt hole 18 is formed in the overlapping portion of the FRP pipe 16 and the metal pipe 17 so as to follow the hoop shapes of an outer ring wedge hoop 21 and an outer ring holding hoop 19 as described later, and an inner ring wedge hoop 22 and an inner ring holding hoop 20. Is to be processed.

The outer ring holding hoop 19 is provided on the outer peripheral side of the FRP pipe 16, and the inner ring holding hoop 20 is provided on the inner peripheral side of the metal pipe 17.

An outer ring wedge hoop 21 is inserted between the outer ring holding hoop 19 and the FRP pipe 16, and the contact surface (tapered surface) between the outer ring wedge hoop 21 and the outer ring holding hoop 19 is relative to the axis of the penetrating member 23. The predetermined angle θ is larger than 0 ° and smaller than 90 ° (that is, 0 ° <θ <90 °).

Similarly, an inner ring wedge hoop 22 is inserted between the inner ring holding hoop 20 and the metal pipe 17, and the contact surface (tapered surface) between the inner ring wedge hoop 22 and the inner ring holding hoop 20 is the axis of the penetrating member 23. On the other hand, a predetermined angle θ greater than 0 ° and smaller than 90 ° is formed (that is, 0 ° <θ <90 °).

Here, the penetrating member 23 in the present embodiment is, for example, a surface pressure imparting bolt 23 provided so as to penetrate the bolt hole 18. The surface pressure imparting bolt 23 is cut with a thread groove 8 so that the nut 24 can be fitted thereto, whereby the surface pressure imparting bolt 23 and the nut 24 are fixed. Further, by tightening the nut 24, the diameters of the FRP pipe 16 and the metal pipe 17 with respect to the outer ring pressing hoop 19, the outer ring wedge hoop 21, the FRP pipe 16, the metal pipe 17, the inner ring wedge hoop 22, and the inner ring pressing hoop 20. It is fastened and fixed so that a surface pressure is applied outward in the direction.

Incidentally, in the first to fifth embodiments, the pressing member (pressing ring 10) and the penetrating members 11 to 13 are fitted through the screw grooves 8, respectively, and their mutual positions are completely fixed. However, in the present embodiment, the contact portion between the pressing member (outer ring pressing hoop 19 and inner ring pressing hoop 20) and the penetrating member (surface pressure applying bolt 23) may or may not be fixed. Also good.

Here, a case is considered in which the FRP pipe 16 and the metal pipe 17 are deformed so as to be pulled out in the axial direction of the FRP pipe 16 and the metal pipe 17 by an external force (load F). At this time, the outer ring wedge hoop 21 in the III region and the inner ring wedge hoop 22 in the I region try to move according to the load acting on the FRP pipe 16 and the metal pipe 17. At this time, due to the contact surface (tapered surface) having the inclination angle θ, the outer ring pressing hoop 19 in the region III has a component force radially outward, and the inner ring pressing hoop 20 in the region I has a component force radially inward. Act.

At this time, since the

pressing members

19 and 20 are regulated to move radially outward and radially inward by the nuts 24 fitted to the surface pressure imparting bolts 23, these component forces remain as they are as wedge members. It becomes the reaction force to 21 and 22. This reaction force acts in the direction in which the FRP pipe 16 and the metal pipe 17 are compressed together.

(Action / Effect)
Even with this configuration, the FRP pipe 16 and the metal pipe 17 sandwiched between the

wedge members

21 and 22 receive a compressive force and are difficult to pull out from each other, as in the first to fifth embodiments. Born.

In the case of the present embodiment, the larger the load displacement amount of the FRP pipe 16 or the metal pipe 17 is, the larger the follow displacement amount of the

wedge hoops

21 and 22 is. The force which compresses the pipe 16 and the metal pipe 17 also becomes large. As a result, the FRP pipe 16 and the metal pipe 17 are hardly displaced.

(Seventh embodiment)
A seventh embodiment of the present invention will be described with reference to FIG.
Also in this embodiment, the pipes are not limited to different types, but may be the same type. In the following, a case where any one of the pipes is an FRP pipe will be described, but the FRP pipe is not necessarily included. The same components as those in the first to sixth embodiments are denoted by the same reference numerals, and redundant description is omitted.

FIG. 11 is a cross-sectional view of the joint between the FRP pipe 16 and the metal pipe 17. The present embodiment is different from the sixth embodiment in that a pressing member and a nut are integrated, and a tapered nut 25 is fitted to a penetrating member (surface pressure applying bolt) 23 via a thread groove 8. Moreover, the wedge member is not a hoop shape but a ring shape. That is, the wedge ring 9 is arranged so as to surround the penetrating member 23. Other points are the same as in the sixth embodiment.

That is, the FRP pipe (second member) 16 is fitted so as to overlap the outer peripheral portion of the metal pipe (third member) 17. That is, the FRP pipe (second member) 16 and the metal pipe (third member) 17 are arranged so that the axial directions thereof coincide. Further, a plurality of bolt holes 18 are machined in the circumferential direction in the overlapping portion between the two. A surface pressure applying bolt 23 is passed through the bolt hole 18, and a tapered nut 25 is fastened to the surface pressure applying bolt 23 via the wedge ring 9.

(Action / Effect)
Even when configured as in the present embodiment, the same effects as in the sixth embodiment can be obtained. In other words, for example, a case where the FRP pipe 16 is deformed so as to come out of the metal pipe 17 due to an external force (load F) is considered.

At this time, the wedge ring 9 is about to move in the axial direction, so that the FRP pipe 16 and the metal pipe 17 are pressed against the wedge ring 9 by the inclined surface applied to the tapered nut 25. The reaction force received from the tapered nut acts.

Thus, the FRP pipe 16 has an effect that it is difficult to pull out from the metal pipe 17. Further, even if the cross section of the FRP pipe 16 is unavoidably not completely circular due to thermal deformation or restrictions at the time of manufacture, a compression surface pressure is generated at each portion where the surface pressure applying bolt 23 is locally fastened. Therefore, the effect that the fastening of a large-sized structure becomes easy is also produced.

Further, in the sixth embodiment, since the holding

members

19 and 20 and the

wedge members

21 and 22 have a hoop shape along the peripheral surfaces of the FRP pipe 16 and the metal pipe 17, the FRP pipe 16 and the metal pipe 17 can be cut. However, according to the method of this embodiment, the pressing member 25 and the wedge member 9 have a ring shape surrounding the penetrating member 23. For this reason, the FRP pipe 16 and the metal pipe 17 have an advantage that there is no problem even if they are cut.

(Eighth embodiment)
An eighth embodiment of the present invention will be described with reference to FIGS. Note that the same components as those in the first to seventh embodiments are denoted by the same reference numerals, and redundant description is omitted.
FIG. 12 is a plan view (top view) of the FRP plate 1 according to the present embodiment, and FIG. 13 is a cross-sectional view taken along arrow YY in FIG.

In the present embodiment, the FRP plate 1 is provided with a hole 2 having an arbitrary shape. The wedge plate 3 is in contact with the hole 2 in between. The wedge plate 3 is a wedge member and is also an annular member that surrounds a penetrating member 5 described later.

The surface of the wedge plate 3 that is not in contact with the FRP plate 1 has a predetermined inclination angle θ greater than 0 ° and smaller than 90 ° with respect to the axis of a penetrating member (polygonal pin) 5 described later ( Taper surface). (That is, 0 ° <θ <90 °).

The wedge plate 3 is in contact with the holding plate 4. The contact surface of the pressing plate 4 is processed so as to be in uniform contact with the tapered surface of the wedge plate 3. The pressing plate 4 is a pressing member and is also an annular member that surrounds a penetrating member 5 described later.

Two holding plates 4 are prepared in the vertical direction so as to sandwich the FRP plate 1 and are fastened to each other by the heads of bolts 6 or nuts.

Further, a hole is processed in the vicinity of the center portion of the holding plate 4 and a polygonal pin 5 penetrates the hole.

Here, a case is considered where a load is applied to the penetrating member (polygonal pin) 5 in a direction perpendicular to the axis of the penetrating member (polygonal pin) 5, for example. When the pressing plate 4 receives the load F from the penetrating member 5, the pressing plate 4 tends to slip. In other words, in this case, the pressing plate 4 as a pressing member is restricted in movement in the vertical direction by the head or nut of the bolt 6 and is firmly fixed to the penetrating member 5 indirectly by the bolt 6 in the load direction. The holding plate 4 is displaced following the direction of the load F by the movement of the polygonal pin 5 that is the penetrating member.

At this time, the movement of the holding plates 4 in the III region and the IV region is restricted by fastening bolts 6 in the vertical direction, and the contact surface between the pressing plate 4 and the wedge plate 3 is inclined by a taper. The component force that compresses is generated. The FRP plate 1 is compressed by this component force.

(Action / Effect)
Also in the present embodiment, as in the first to seventh embodiments, part of the load acting on the penetrating member 5 is converted into a compressive force in the fiber lamination direction of the FRP plate 1 and divided. For this reason, destruction at the hole 2 can be prevented, and the strength reliability is improved.

Moreover, according to this embodiment, the penetration member 5 should just be arbitrary polygonal shapes. Further, the hole 2 through which the penetrating member 5 is passed may be an arbitrary shaped hole as long as the penetrating member penetrates the hole 2, and it is not necessarily required to be formed in a circular shape in a sectional view. Absent. Thereby, the fitting fastening structure of the FRP plate-shaped body 1 corresponding to the penetration member of various shapes can be provided.

(Ninth embodiment)
A ninth embodiment of the present invention will be described with reference to FIG. Note that the same components as those in the first to eighth embodiments are denoted by the same reference numerals, and redundant description is omitted.

In the present embodiment, the inclination angle θ, which is the angle formed by the tapered surfaces (contact surfaces) of the pressing ring 10 and the wedge ring 9 with the axis of the penetrating member 11, is opposite to that of the first embodiment shown in FIG. 90 ° <θ <180 °), which is a so-called reverse taper type. Other configurations are the same as those in the first embodiment.

(Action / Effect)
Even if comprised in this way, there can exist an effect similar to 1st Embodiment. However, as shown in FIG. 14, a component force that compresses the FRP plates 1 is generated in the wedge ring 9 at the tip of the penetrating member 11 in the load direction. This point is on the opposite side of the first embodiment.

(10th Embodiment)
A tenth embodiment of the present invention will be described with reference to FIG. Note that the same components as those in the first to ninth embodiments are denoted by the same reference numerals, and redundant description is omitted.

In this embodiment, the wedge ring 9 is provided in two sets on one side so as to contact the FRP plate 1 with the FRP plate 1 as a boundary, and the contact surface with the pressing ring 10 is the FRP plate. It is different in that it has a substantially mountain-shaped or umbrella-shaped tapered surface as viewed from 1. Other configurations are the same as those in the first embodiment.

From now on, the arrows in FIGS. 15 to 21 indicate, for example, when the load F acts on the penetrating member 11 in the Up direction or the Down direction, for example, the I region in the first embodiment of FIG. The force acting on the wedge ring 9 and the holding ring 10 existing in the region corresponding to the region II is schematically drawn for reference. Actually, the force acts in the same manner on the wedge ring 9 and the pressing ring 10 existing in the region corresponding to the region III and the region IV in the first embodiment of FIG. Further, the Up direction means any one of 360 degrees, and the Down direction means a direction opposite to the Up direction, that is, a direction opposite to the Up direction by 180 degrees.

In FIG. 15, the wedge rings 9 are drawn separately so that it can be seen that there are two pairs of wedge rings 9 per side with the FRP plate 1 as a boundary, but the contact surface with the holding ring 10 does not change. If so, two sets of wedge rings 9 may be combined and an integrated taper ring may be used.

In the first embodiment, a component force that compresses the FRP plate-like body 1 acts on the wedge ring 9 positioned on the opposite side to the load direction F applied in the direction perpendicular to the axis of the penetrating member 11. It was only. However, if configured as in this embodiment, regardless of the direction of the load applied to the penetrating member 11 in the direction perpendicular to the axis, the FRP plate-like body 1 is always attached to one of the two sets of wedge rings 9. It becomes possible to generate a component force that compresses.

(Action / Effect)
By configuring in this way, component forces that compress the FRP plate-like body 1 from each other can be applied from both sides of the load F, and the FRP plate-like body 1 is restrained more firmly than in the first embodiment. The special effect of being able to do it can be produced.

FIG. 16 is a modification of FIG.
Note that the same components as those in the first to tenth embodiments are denoted by the same reference numerals, and redundant description is omitted.

FIG. 16 is different from FIG. 15 in that the contact surface between the wedge ring 9 and the retaining ring 10 is configured to be a substantially valley-shaped or Y-shaped tapered surface when viewed from the FRP plate-like body 1. Is different. Other configurations are the same as those in FIG.

Also in FIG. 16, the wedge rings 9 are drawn separately so that it can be seen that there are two pairs of wedge rings 9 per side with the FRP plate 1 as the boundary, but the contact surface with the holding ring 10 is As long as it does not change, two sets of wedge rings 9 may be combined and an integrated taper ring may be used.

(Action / Effect)
Even if comprised in this way, there can exist an effect | action and effect completely the same as FIG. That is, in the first embodiment, a component force that compresses the FRP plate-like body 1 with respect to the wedge ring 9 positioned on the opposite side to the load direction F applied in the direction perpendicular to the axis of the penetrating member 11 is obtained. It only worked. However, if configured as in the present embodiment, regardless of the direction of the load applied to the penetrating member 11 in the direction perpendicular to the axis, the FRP plate 1 is always attached to one of the two sets of wedge rings 9. It is possible to generate a component force that compresses each other.

By configuring in this manner, component forces that compress the FRP plate-like body 1 from each other can be applied from both the front and rear directions of the load F, and the FRP plate-like body 1 can be made stronger than in the first embodiment. The special effect that it can restrain can be show | played.

(Eleventh embodiment)
An eleventh embodiment of the present invention will be described with reference to FIG. Note that the same components as those in the first to tenth embodiments are denoted by the same reference numerals, and redundant description is omitted.

In this embodiment, compared with FIG. 4, two sets of wedge rings 9 having the same cross-sectional shape and different diameters on one side so that the FRP plate-like body 1 is in contact with the FRP plate-like body 1 are bordered. (Or two stages if the vertical relationship is called a stage) is different. Other configurations are the same as those of the first embodiment.

Note that the number of wedge rings 9 is not limited to two as in this example. For example, you may comprise so that N stage (plural sets) may be provided.

(Action / Effect)
Even if comprised in this way, there can exist an effect similar to 1st Embodiment. More specifically, since the wedge ring is a two-stage type, the taper surface that is a contact surface with the holding ring 10 is also increased to two locations per side. As a result, the component force by which the wedge ring 9 compresses the FRP plate 1 can also be input from two locations per side (that is, supported at two points), so that the surface pressure per wedge ring 9 can be reduced, and the first The FRP plate-like body 1 can be prevented from being compressed and fractured as compared with the first embodiment.

FIG. 18 is a modification of FIG.
Note that the same components as those in the first to tenth embodiments are denoted by the same reference numerals, and redundant description is omitted.

FIG. 18 is different from FIG. 17 in that the inclination of the contact surface (taper surface) between the wedge ring 9 and the pressing ring 10 is formed in the opposite direction (that is, 90 ° <θ <180 °). Other configurations are the same as those in FIG.

In this modification, the number of wedge rings 9 is not limited to two such sets. For example, you may comprise so that N sets (plural sets) may be provided.

This is a modification of FIG. 14, and the wedge ring 9 is provided with two sets (two steps) of rings having the same cross-sectional shape and different diameters on one side with the FRP plate 1 as a boundary. You can also see it.

(Action / Effect)
Even if comprised in this way, there can exist an effect | action and effect completely the same as FIG.17 and FIG.14. That is, since the wedge ring is a two-stage type, the taper surface that is a contact surface with the pressing ring 10 is also increased to two locations per side.

As a result, the component force by which the wedge ring 9 compresses the FRP plate 1 can also be input from two locations per side, and the FRP plate 1 can be restrained more firmly than in FIG. There is an effect.

(Twelfth embodiment)
A twelfth embodiment of the present invention will be described with reference to FIG. Note that the same components as those in the first to eleventh embodiments are denoted by the same reference numerals, and redundant description is omitted.

In the present embodiment (FIG. 19), the press ring 10 can be separated from the eleventh embodiment of FIG. 17 corresponding to two sets of wedge rings per side with the FRP plate 1 as a boundary. It is different in the configuration. A thread groove 8 is carved in the separation portion so that it can be completely fitted. That is, each pressing ring 10 of the present embodiment is fixed directly or indirectly to the penetrating member 11. Other configurations are the same as those in the eleventh embodiment.

Note that the number of the wedge ring 9 and the holding ring 10 is not limited to two sets per side as in this example. For example, you may comprise so that N stage (plural sets) may be provided.

(Action / Effect)
Even if comprised in this way, there can exist an effect | action and effect similar to 11th Embodiment. To further explain, by making it possible to separate the two sets of the wedge ring 9 and the holding ring 10 per side by the thread groove 8, the inclination angle of the tapered surface may be changed to be different from each other. .

In this case, for example, the wedge ring 9 in the vicinity of the hole 2 of the FRP plate-like body 1 has a slightly larger inclination angle θ2, which is the angle formed by the tapered surface with the penetrating member, and the other annular member (ring) 9, If the inclination angle θ1 of the contact surface (taper surface) 10 is designed to be slightly smaller (θ1 <θ2), the wedge ring 9 in the vicinity of the hole 2 of the FRP plate 1 is compressed by the FRP plate 1. It is possible to control the magnitude of the acting component force, such that the force works slightly weaker and the other wedge ring 9 has a slightly stronger component force.

If manufactured in this way, an effect of making it difficult for the FRP plate 1 to break from the vicinity of the hole 2 can be obtained. In this case, since the other wedge ring 9 is configured to be able to apply a strong surface pressure to the FRP plate-like body 1, the fastening strength does not become insufficient.

In addition, when the inclination angle θ of the taper surface is manufactured at the same angle (θ1 = θ2), it is the same as the state in which the wedge ring 9 and the holding ring 10 of the first embodiment (FIG. 4) are further added as a set. You can also see it. In this case, it is exactly the same as the eleventh embodiment (FIG. 17).

FIG. 20 is a modification of FIG.
Note that the same components as those in the first to eleventh embodiments are denoted by the same reference numerals, and redundant description is omitted.

20 is different from FIG. 19 in that the angles θ1 and θ2 formed between the inclined surface (tapered surface) of the wedge ring 9 and the pressing ring 10 and the penetrating member 11 are in opposite directions (that is, 90 ° <θ1 <180 °). , 90 ° <θ2 <180 °). Other configurations are the same as those in FIG.

Note that the number of the wedge rings 9 and the holding rings 10 is not limited to two sets per side as in this example. For example, you may comprise so that N stage (plural sets) may be provided.

(Action / Effect)
Even if configured in this manner, the same operations and effects as in FIG. 19 can be obtained. That is, two sets of the wedge ring 9 and the holding ring 10 can be separated per one side by the thread groove 8, so that the inclination angle of the tapered surface may be changed to be different from each other.

In this case, for example, the wedge ring 9 in the vicinity of the hole 2 of the FRP plate-like body 1 has a slightly smaller inclination angle θ2, which is an angle formed by the tapered surface with the penetrating member, and the other annular member (ring) 9, If the inclination angle θ1 of the contact surface (taper surface) 10 is designed to be slightly larger (θ1> θ2), the wedge ring 9 in the vicinity of the hole 2 of the FRP plate 1 is compressed by the FRP plate 1. It is possible to control the magnitude of the acting component force, such that the force works slightly weaker and the other wedge ring 9 has a slightly stronger component force.

In addition, when the inclination angle θ of the taper surface is manufactured at the same angle, it can be seen that the wedge ring 9 and the pressing ring 10 of the ninth embodiment (FIG. 14) are further added as a set. In this case, it is exactly the same as the eleventh embodiment (FIG. 18).

(13th Embodiment)
A thirteenth embodiment of the present invention will be described with reference to FIG. Note that the same components as those in the first to twelfth embodiments are denoted by the same reference numerals, and redundant description is omitted.

This embodiment has a configuration in which the combination of the wedge ring 9 and the pressing ring 10 of the tenth embodiment (FIG. 15) is multi-staged through the thread groove 8 and provided with N stages (multiple sets). That is, each pressing ring 10 of the present embodiment is fixed directly or indirectly to the penetrating member 11. Other portions are the same as those in the tenth embodiment (FIG. 15).

(Action / Effect)
Even if comprised in this way, there can exist an effect similar to 10th Embodiment. Furthermore, in the case of this embodiment, since it is multi-staged by screw fitting, it is easy to set the inclination angle of the tapered surface independently as in the twelfth embodiment (FIGS. 19 and 20). . In this case, for example, as the position of the wedge ring 9 gradually increases from the vicinity of the hole 2 of the FRP plate-like body 1, the surface pressure component force compressing the FRP plate-like body 1 gradually increases in a gradation. It is also possible to design to follow.

Moreover, in this embodiment, regardless of the direction of the load F applied in the direction perpendicular to the axis of the penetrating member 11, a component force that always compresses the FRP plate 1 is applied to both the front side and the rear side of the load F. For this reason, for example, the point that is vulnerable to breakage such as the vicinity of the hole 2 of the FRP plate-like body 1 is easily worked, while the portion that is resistant to breakage gradually compresses the FRP plate-like body 1 as the distance from the hole 2 increases. It is easy to make the force act.

In this way, for example, according to the circumstances such as the special shape of the FRP plate-like body 1, by carefully controlling the component force, while maintaining the members such as the FRP plate-like body 1, more firmly and securely, Can be restrained.

(Application example)
Hereinafter, application examples of the first to thirteenth embodiments of the present invention will be described with specific actions and effects. In addition, the following is only a part of an example regarding a specific application part among the structures considered to be applicable to the present invention, and the scope of the present invention is limited to the range of these illustrated structures. It goes without saying that it is not a thing.
That is, the fastening member for the fitting structure, the fitting structure, and the structure including the fastening member for the fitting structure described in the first to thirteenth embodiments of the present invention are at least the power described below. It includes all structures including a shovel, a wind turbine blade for wind power generation, a centrifuge, a fastening member for a fitting structure relating to an automobile, a ship, and an aircraft, a fitting structure, and a fastening member for the fitting structure.
In other words, the following illustration is an example showing that the scope of rights of the present invention is very wide. The scope of the present invention should not be construed as being limited to these exemplary ranges.

(Application example 1)
FIG. 22 is a perspective view of the excavator 100.
The excavator 100 is an all-FRP electric excavator using the FRP pipe 16 and the FRP plate 1, and the material is the FRP pipe 16 and the metal plate, the metal pipe and the FRP plate 1, the metal pipe and the metal plate. Or a combination of the above. Needless to say, a conventional hydraulic excavator may be used instead of the electric excavator. The wheels may be rubber tires instead of the caterpillar 104.

In this application example, for example, the boom 101 portion corresponding to the working arm and the end portion (connection portion) of the arm 102 portion have a structure in which the FRP pipe 16 and the FRP plate 1 are combined.

Specifically, for example, the connecting portion between the boom 101 and the arm 102 has a grating (lattice structure) of the FRP plate 1 for weight reduction (see FIGS. 1 and 2 and FIG. 22 as appropriate). 22) As shown in part C of FIG. 22, the penetrating member 11 is passed through the hole 2, and the FRP pipe 16 extending to the boom 101 side or the arm 102 side is point-connected to the penetrating member 11. Yes. Thus, when the excavator 100 is in operation, the load F is input to the penetrating member 11 via the FRP pipe 16.

Similarly, for example, the connecting portion of the arm 102 and the tip basket 103 has a grating (lattice structure) of the FRP plate 1 for weight reduction, and penetrates the hole 2 as shown in part D of FIG. The member 11 is passed through, and the FRP pipe 16 extending to the arm 102 side is connected to the penetrating member 11 by point connection. Thus, when the excavator 100 is in operation, the load F is input to the penetrating member 11 via the FRP pipe 16.

Here, the gratings in which the FRP plate-like bodies 1 are combined in a lattice shape are provided at the connecting portion between the boom 101 and the arm 102 and the connecting portion between the tip bucket 103 and the arm 102. This is because the deformation is expected to be complicated, so that the grating is used to increase the rigidity by using the high strength characteristics of the FRP plate 1 in the fiber lamination direction.

Further, for example, the FRP pipe 16 is used in a portion where the deformation state is relatively uniform, and the weight reduction characteristics of the FRP are utilized to reduce the weight as much as possible.

In addition, regarding the type of FRP used in the body of the power shovel 100, for example, carbon fiber reinforced resin (CFRP), glass fiber reinforced resin (GFRP), silicon carbide fiber reinforced resin ( SiCFRP), alumina fiber reinforced resin _(Al ₂ O 3 FRP), may be suitably selected from aramide fiber reinforced resin (AFRP). It is not limited to these.

For example, the FRP fitting structure according to the first to third and eighth to thirteenth embodiments can be applied to such a part. Alternatively, the FRP fitting structures according to the first to third and eighth to thirteenth embodiments may be applied in appropriate combination. At this time, the wedge rings 94 and 95 described in the fourth or fifth embodiment may be used.

According to this application example, it is possible to reduce the weight while increasing the rigidity of the excavator 100. In addition, the weight reduction can reduce power consumption and extend battery consumption time. Thereby, for example, the operation time of the aircraft per day can be estimated long, and the working efficiency can be improved.

Moreover, even if it is a conventional hydraulic excavator having an internal combustion engine instead of the electric excavator 100, since it is lightened with high rigidity, low fuel consumption operation is possible, fuel cost is saved, In addition, there is an effect that the refueling span can be estimated long.

Also, in the past, if it was going to be made of all-FRP, it would cost a huge amount of hundreds of millions of yen just to produce a die for integral molding. Had to be recreated from scratch and could not be changed flexibly.

However, if the FRP fitting structure according to the first to thirteenth embodiments of the present invention is applied, the large FRP member is divided, or the FRP member is manufactured as a small part from the beginning, and the assembly process ensures that Since it can be fastened, it has the potential to provide overwhelming portability.

In addition, if the FRP member is built in as a small part in advance, only the part to be remodeled can be removed and replaced, so that the business opportunity can be captured while maintaining high rigidity at low cost. It is possible to respond to quick cuts and ad-hoc changes.

Furthermore, because it is an industrial machine, it may be damaged during operation and repair may be required. In this case, however, with a conventional excavator, the weld at the site following the damage is first melted and peeled off. This requires a work process such as repairing and re-welding, requiring an enormous amount of time and equipment, and making repairs and maintenance difficult.

However, if the FRP fitting structure according to the first to thirteenth embodiments of the present invention is applied, it is possible to replace only the part where the damage has occurred, and it is not a connection using an adhesive or welding. Also, there is an effect that these repairs and maintenance can be easily performed.

(Application example 2)
Another application example of the present invention will be described with reference to FIGS. 23A and 23B.
FIG. 23A is a perspective view of a wind turbine blade 200 of a conventional wind turbine for wind power generation, and FIG. 23B is a perspective view of the wind turbine blade 200 of the wind turbine for wind power generation when the present invention is applied.

As shown in FIG. 23A, the wind turbine blade 200 mounted with the FRP blade 201 has already been put into practical use. The connecting portion between the hub 202 and the FRP blade 201 uses a combination of flange fastening by a flange (not shown) provided on the hub 202 and bolt fastening by a blade mounting bolt 203 provided on the FRP blade 201. .

However, according to the conventional example, the blade mounting bolt 203 is unavoidable in order to prevent a case where the load is applied in the non-lamination direction of the FRP blade 201 fibers and breaks from the vicinity of the hole 2 for passing the penetrating member. At present, it is attached so as to be parallel to a direction orthogonal to the rotation direction of 201.

However, in this case, when the FRP blade 201 rotates, the centrifugal force acting on the FRP blade 201 and the direction of the blade mounting bolt 203 become the same direction. In other words, the blade mounting bolt 203 is embedded and used in the same direction as the direction in which the FRP blade 201 is pulled out by centrifugal force, and the bolt fastening portion has little meaning with respect to the centrifugal force. It can be said that only the flange is fastened.

Therefore, as shown in FIG. 23B, the FRP fitting structure according to the first to thirteenth embodiments of the present invention is applied to the connecting portion between the FRP blade 201 and the hub 202. For example, the FRP fitting structure according to the sixth or seventh embodiment can be applied. At this time, the wedge rings 94 and 95 described in the fourth or fifth embodiment may be used.

That is, for example, if the outer ring holding hoop 19, the outer ring wedge hoop 21, and the penetrating member 23 of the present invention are used for fastening, the flange can be designed and the hub 202 itself can be reduced in weight.

Thereby, the magnitude of the centrifugal force acting on the wind turbine blade 200 including the hub 202 and the FRP blade 201 can be reduced, and the FRP blade 201 can be protected.

Further, since the drawing load due to the centrifugal force does not act on the penetrating member 23, it can be tightened more firmly than the conventional example. In addition, it is easy to use different members appropriately in combination, such as using a high strength metal member for the hub 202 portion that requires strength.

Furthermore, even when the FRP blade 201 is damaged during operation due to external forces (force majeure) in the natural world such as strong winds, lightning strikes, and offshore winds, corrosion caused by sea breezes, waves, and tsunamis. Since the replacement is not a joining using an adhesive or the like, there is an effect that it can be easily performed.

(Application example 3)
Another application example of the present invention will be described with reference to FIGS. 24A and 24B.
24A is a perspective view of the FRP blade 201 of the wind turbine for wind power generator to which the FRP fitting structure according to the first to thirteenth embodiments of the present invention is applied, and FIG. 24B is a ZZ of FIG. 24A. It is a schematic diagram of an arrow cross section.

In this application example, the outer surface of the wind turbine blade 200 for wind power generation is an FRP outer shell 204, and a metal support 205 is incorporated on the inner side to supplement the blade rigidity.

At this time, as a method of fastening the metal support 205 and the FRP jacket 204, conventionally, an adhesive is used to bond the two. For this reason, the solar heat range (day difference) and the windmills installed on the ocean and coastal areas are also affected by sea breezes, etc., and the adhesive force gradually weakens or corrodes. There was a problem of peeling off.

In addition, due to the flange fastening between the hub 202 and the FRP blade 201, it is difficult to remove it. Therefore, it is difficult to perform preliminary inspection, and the internal deterioration state may be revealed only after an accident such as a blade blowing off occurs. It was a social problem.

Here, the FRP fitting structure according to the first to thirteenth embodiments of the present invention is applied as a method of fastening the metal support 205 and the FRP jacket 204. For example, the FRP fitting structure according to the first to third and eighth to thirteenth embodiments can be applied. Alternatively, the FRP fitting structures according to the first to third and eighth to thirteenth embodiments may be applied in appropriate combination. At this time, the wedge rings 94 and 95 described in the fourth or fifth embodiment may be used.

That is, the

wedge members

9, 21, 22, 94, 95, the

pressing members

10, 19, 20, and the penetrating

members

11, 12, 13, 23 corresponding to the embodiment of the present invention are fastened by appropriately selecting or combining them. be able to.

This configuration facilitates maintenance because it is easy to remove. Further, since no adhesive is used, the possibility of peeling off can be greatly reduced.

Moreover, since the windmill blade 200 can be made light and highly rigid, there is also an advantage that, for example, the diameter size of the windmill can be increased to capture the wind more reliably and increase the power generation efficiency.

(Application example 4)
Another application example of the present invention will be described with reference to FIGS. 25A and 25B.
FIG. 25A is a cross-sectional view illustrating a conventional schematic structure of centrifuge 300. FIG. 25B is a schematic diagram when the FRP cylinder 310 is used in the rotary drum 305 portion of the centrifuge 300 and the FRP fitting structures according to the first to thirteenth embodiments of the present invention are applied.

As shown in FIG. 25A, the centrifuge 300 generally includes a bearing 301, an upper extraction pipe 302, a partition plate 303, a supply pipe 304, a rotary drum 305, a lower extraction pipe 306, a motor 307, and the like. It is configured to be covered with a so-called exterior member (for details, see the Atomic Energy Society of Japan HP: http://www.aesj.or.jp/~recycle/nfctxt/nfctxt_3-2.pdf, page 4).

Centrifugal separation is performed by supplying a mixed gas such as UF ₆ composed of a heavy component and a light component from a supply pipe 304, and rotating the rotating drum 305 through the upper and lower bearings 301 by a motor 307 as fast as possible. Let At this time, while the flow of the circulating countercurrent 309 generated inside the rotary drum 305 is restricted by the partition plate 303, the mixed gas is separated into light components and heavy components by centrifugal force, and extracted at the upper and lower portions, respectively. The separated gas is extracted from the

tubes

302 and 306.

Here, as shown in FIG. 25B, it is considered that the rotating drum 305 portion is divided into an FRP cylinder 310 and a metal rotating portion 311. The reason is that it is desired to reduce the weight of the rotating drum 305 itself using the FRP member, and the metal rotating part 311 is made of metal from the viewpoint of reliability because it is a part to which a load is applied.

Then, it is possible to apply the FRP fitting structure according to the first to thirteenth embodiments of the present invention at this connecting portion. For example, the FRP fitting structure according to the sixth or seventh embodiment can be applied. At this time, the wedge rings 94 and 95 described in the fourth or fifth embodiment may be used.

That is, the

wedge members

9, 21, 22, 94, 95, the

pressing members

10, 19, 20, and the penetrating

members

With this configuration, the rotational cylinder can be further increased in speed by replacing the cylindrical cylinder portion of the rotary cylinder 305 with the lightweight and rigid FRP cylinder 310. Thereby, the separation performance of the mixed gas can be improved, and a separated product concentrated to an extremely high concentration can be obtained.

Further, as the FRP cylinder 310 is rotated at a higher speed, an inertia moment called inertia is generated, and a phenomenon of shifting from each other at the fastening portion is observed. However, according to the first to thirteenth embodiments of the present invention. If the FRP fitting structure is applied, the more the components are displaced from each other, the more the component force that compresses the cylindrical surface acts on the contrary, and the more tightly held.

(Application example 5)
Another application example of the present invention will be described with reference to FIG.
FIG. 26 shows an application example when the roof of the automobile 400 is FRP and the FRP fitting structure according to the first to thirteenth embodiments of the present invention is applied.

As shown in FIG. 26, when the FRP roof 401 is fastened to the frame 403 of the chassis 402 instead of the conventional metal roof, the FRP fitting structure according to the first to thirteenth embodiments of the present invention is applied. Is possible. For example, the FRP fitting structure according to the first to third and eighth to thirteenth embodiments can be applied. Alternatively, the FRP fitting structures according to the first to third and eighth to thirteenth embodiments may be applied in appropriate combination. At this time, the wedge ring 9 described in the fourth or fifth embodiment may be used.

That is, the

wedge members

9, 21, 22, 94, 95, the

pressing members

10, 19, 20, and the penetrating

members

This configuration can reduce the weight of the vehicle body, so that the torque weight ratio and the power weight ratio can be visibly improved. As a result, the vehicle's motion performance such as acceleration / deceleration performance and cornering performance can be dramatically improved. In addition, fuel consumption per km can be reduced and fuel efficiency can be improved.

In addition, even if the driver makes a mistake in driving operation and the vehicle rolls over 180 ° and the load of the vehicle body 402 is applied to the FRP roof 401, the roof bends due to the high-strength rigidity so that the space in the vehicle interior is reduced. It can also prevent pressure. At this time, there is also an effect that the more the lateral displacement is caused by the impact load, the more the fastening part is tightened.

(Application example 6)
Another application example of the present invention will be described with reference to FIGS. 27A and 27B.
FIG. 27A is a perspective view of a ship according to this application example. FIG. 27B is a schematic view when the FRP fitting structure according to the first to thirteenth embodiments of the present invention is applied to a ship in which FRP is used for the hull part.

A ship 500 shown in FIG. 27A is configured to be divided into three parts such as a bow part, a center part, and a stern part, for example, such as a bow part, a center part, and a stern part, and each is modularized so as to be easily assembled. These main hull parts are formed of all FRP, and are configured to take advantage of the light weight and high rigidity ability inherent to the FRP member and the demagnetization performance that prevents the hull from being magnetized by the earth's geomagnetism.

Conventionally, such a large ship, for example, for the purpose of minesweeping, actively uses the FRP member because the die for FRP integral molding is enlarged and the cost is increased. There was a side that was difficult to use. For this reason, in order to give priority to the demagnetization performance, there were some which were purposely constructed as wooden instead of steel.

However, here, it is considered that the main hull is constituted by an FRP module and the FRP fitting structure according to the first to thirteenth embodiments of the present invention is applied to the fastening portion. For example, as shown in FIG. 27B, the FRP fitting structures according to the first to third and eighth to thirteenth embodiments can be applied to the fastening portions of the bow module 501, the center module 502, and the stern module 503. . Alternatively, the FRP fitting structures according to the first to third and eighth to thirteenth embodiments may be applied in appropriate combination. At this time, the wedge rings 94 and 95 described in the fourth or fifth embodiment may be used.

That is, the

wedge members

9, 21, 22, 94, 95, the

pressing members

10, 19, 20, and the penetrating

members

11, 12, 13, 23 corresponding to the embodiment of the present invention are appropriately selected or combined and fastened.

Then, since the mold size constraint does not have to be taken into consideration at the design stage, the number of module divisions, that is, the size of each module can be arbitrarily designed, and the degree of freedom in design is dramatically increased. Further, the basic characteristics inherent to the FRP member by actively introducing the FRP member instead of wood can be fully enjoyed.

As for maintenance, for example, when it becomes necessary to repair the hull during activities on the open seas of the open ocean, only the damaged module is removed and a new module is installed to tighten the screws. Therefore, emergency repair with high mobility is possible.

It should be noted that the ship to which the present invention is applied does not ask the hull size from a small ship to a large ship. However, in the case of a large ship as shown in FIG. 27A, since the amount of drainage becomes large, the input of buoyancy (external force) received by the bottom of the ship becomes large, and there is a merit of weight saving by using FRP members over a wide area. Since it tends to be easy, it is more preferable.

That is, as the input of external force increases in a larger ship, the FRP modules tend to shift from each other. However, if the FRP fitting structure according to the first to thirteenth embodiments of the present invention is applied, the FRP module tends to shift. The more you do it, the more conspicuous the fastening part is. Moreover, the contribution rate to fuel efficiency improvement increases by weight reduction by positive introduction of FRP members. In addition, for ships that require demagnetization performance, demagnetization performance can also be enjoyed at the same time. As a result, for example, it is possible to prevent a situation where the hull emits a weak magnetic field and is detected by the opponent.

(Application example 7)
Another application example of the present invention will be described with reference to FIG.
FIG. 28 is a schematic diagram when the FRP fitting structure according to the first to thirteenth embodiments of the present invention is applied to an aircraft in which FRP is used for the fuselage.

As shown in FIG. 28, the fuselage portion of the fuselage of the aircraft 600 is configured by fitting a plurality of divided FRP modules together.

Here, it is considered that the FRP fitting structure according to the first to thirteenth embodiments of the present invention is applied to the module and the fastening portion of the module. For example, the FRP fitting structure according to the first to third and eighth to thirteenth embodiments can be applied. Alternatively, the FRP fitting structures according to the first to third and eighth to thirteenth embodiments may be applied in appropriate combination. At this time, the wedge rings 94 and 95 described in the fourth or fifth embodiment may be used.

That is, the

wedge members

9, 21, 22, 94, 95, the

pressing members

10, 19, 20, and the penetrating

members

This configuration makes it possible to achieve weight reduction while maintaining the high rigidity required for aircraft. Thereby, for example, the cruising distance can be dramatically increased or the oil supply span can be extended.

In addition, even when the flight control is extremely difficult to control, that is, when the aircraft is in an abnormal posture such as a drilling state, the more the aircraft receives lateral G (external force), the more the fastening portion Has the effect of tightening. In addition, the degree of freedom in design is increased as in the case of a ship, and the basic performance inherent in the FRP member by actively introducing the FRP member can be fully enjoyed.

The above-described embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to the one having all the configurations described.

In addition, a part of the configuration of one embodiment can be replaced with the configuration of another embodiment, and a part or all of the configuration of another embodiment can be added to the configuration of one embodiment. It is.

Further, it is possible to add, delete, and replace other configurations for a part of the configuration of each embodiment.

Specifically, for example, the penetrating member 13 of the third embodiment is configured such that the penetrating member 12 of the second embodiment is hollow, but the penetrating member 11 of the first embodiment can also be configured to be hollow. .

Similarly, any of the configurations of the eighth to thirteenth embodiments can be combined with, for example, the first embodiment, the second embodiment, and the third embodiment, respectively, and further added to each of them. In addition, the wedge member may be provided with the protrusion or the friction plate described in the fourth or fifth embodiment.

Further, for example, the configuration of any of the tenth to thirteenth embodiments can be combined with the sixth embodiment or the seventh embodiment, and further, the fourth or fifth configuration can be added to each of them. It can also be set as the structure which equips a wedge member with the processus | protrusion and friction plate as described in embodiment.

In the sixth embodiment and the seventh embodiment, the second member 16 is an FRP pipe and the third member 17 is a metal pipe. However, the second member 16 is a metal pipe and the third member 17 is an FRP pipe. Even in this case, it can be discussed in the same way as in this paper. In addition, although the FRP pipe (second member) 16 is fitted in a form that overlaps with the outer peripheral part of the metal pipe (third member) 17, even when it overlaps with the inner peripheral part, it can be discussed in the same manner as in this paper. .

DESCRIPTION OF SYMBOLS 1 FRP plate-like body, FRP, FRP member, 1st member 2 Hole, insertion part 3 Wedge plate, wedge member, annular member 4 Holding plate, holding member, annular member 5 Polygon pin, penetrating member 7 Sleeve 8 Screw groove 9 Wedge ring, annular member, wedge member 10 holding ring, annular member, holding member 11 pin, penetrating member 12 pin, penetrating member 13 pin, penetrating member 14 protrusion 15 friction plate 16 FRP pipe, FRP member, second member, third Member 17 Metal pipe, second member, third member 19 Outer ring holding hoop, holding member 20 Inner ring holding hoop, holding member 21 Outer ring wedge hoop, wedge member 22 Inner ring wedge hoop, wedge member 23 Surface pressure applying bolt, penetrating member 24 Nut 25 Tapered nut, holding member 94 wedge ring, annular member, wedge member 95 wedge ring , Ring member, wedge member 100 excavator 101 boom 102 arm 103 tip basket 104 caterpillar 200 windmill blade 201 FRP blade 202 hub 203 blade mounting bolt 204 FRP outer shell 205 metal post 300 centrifuge 301 bearing 302 upper extraction pipe 303 Partition plate 304 Supply pipe 305 Rotating drum 306 Lower extraction pipe 307 Motor 308 Casing 309 Circulating counterflow 310 FRP cylinder 311 Metal rotating part 400 Automobile 401 FRP roof 402 Chassis, car body 403 Frame 500 Ship 501 Bow module 502 Central module 503 Stern module 600 Aircraft A to E, G Main part M, N Axis of symmetry θ, θ1, θ2 Angle, tilt angle, taper angle F, F11 to F13 Load, load, force, external force, lateral G

Claims

A penetrating member that is inserted through a first member having an insertion portion and through which a load is input and transmitted;
At least two sets of annular members that are inserted into the penetrating member as a pair of a wedge member and a pressing member, and are disposed so as to sandwich the insertion portion of the first member between the one set and the other set. When,
With
The pressing member is fixed directly or indirectly to the penetrating member,
The wedge member is disposed between and in contact with the pressing member and the first member,
The contact surface of the pressing member and the wedge member is configured to form a predetermined angle other than 90 degrees with respect to the axis of the penetrating member in a cross-sectional view. Fastening member.
The fastening member for a fitting structure according to claim 1, wherein the strength in the surface direction of the first member is smaller than the strength of the penetrating member and the annular member.
The fastening member for a fitting structure according to claim 1, wherein the first member is a fiber reinforced composite resin material (FRP member).
The fastening member for a fitting structure according to claim 1, wherein the penetrating member has a circular cross section perpendicular to the axial direction and a cylindrical shape.
2. The fastening for a fitting structure according to claim 1, wherein the penetrating member is configured by covering a separate sleeve or being integrated with the sleeve, and is inserted into the first member. Element.
The fastening member for a fitting structure according to claim 1, wherein the penetrating member is light in weight with a hollow around the central axis and has a cylindrical shape.
The first member is a member in which the second member and the third member both having the insertion portion are overlapped so that the insertion portions of each other coincide with each other.
The penetrating member is provided with a male screw at a predetermined position on the outer periphery thereof,
2. The fastening member for a fitting structure according to claim 1, wherein the fixing is performed by a nut at least one side of which is provided with a female screw that is screwed into the male screw.
The second member and the third member are cylindrical members disposed so that the axial directions thereof coincide with each other,
The wedge member is an outer ring contacting the outer periphery and inner periphery of the second member or the third member, respectively, and a wedge hoop or wedge ring of the inner ring;
The said holding member is comprised by the said nut integrally or separately, and is the outer ring | wheel arrange | positioned so that the said wedge member may be contact | connected, and the holding hoop or pressing ring of an inner ring | wheel, It is characterized by the above-mentioned. Fastening member for fitting structure.
The fastening member for a fitting structure according to claim 8, wherein one of the second member and the third member is a fiber reinforced composite resin pipe (FRP pipe).
The fastening member for a fitting structure according to claim 1, wherein the wedge member and the pressing member are a plate-shaped wedge plate and a pressing plate, respectively.
Two sets of the wedge members are provided per one side so as to contact the first member with the first member as a boundary, and the contact surface with the pressing member has a substantially mountain shape as viewed from the first member, or The fastening member for a fitting structure according to claim 1, wherein the fastening member has a substantially valley-shaped tapered surface.
The fastening member for a fitting structure according to any one of claims 1 to 11, wherein the wedge member is provided with a plurality of protrusions.
The fastening member for a fitting structure according to any one of claims 1 to 11, wherein a resin friction plate containing organic fibers is fixed to the wedge member. .
A penetrating member that receives and transmits a load;
A first member having an insertion portion through which the penetrating member is inserted;
At least two sets of annular members that are inserted into the penetrating member as a pair of a wedge member and a pressing member, and are disposed so as to sandwich the insertion portion of the first member between the one set and the other set. When,
With
The pressing member is fixed directly or indirectly to the penetrating member,
The wedge member is disposed between and in contact with the pressing member and the first member,
The contact structure between the pressing member and the wedge member is configured to form a predetermined angle other than 90 degrees with respect to the axis of the penetrating member in a cross-sectional view.
In one or more locations,
A penetrating member that is inserted through a first member having an insertion portion and through which a load is input and transmitted;
At least two sets of annular members that are inserted into the penetrating member as a pair of a wedge member and a pressing member, and are disposed so as to sandwich the insertion portion of the first member between the one set and the other set. When,
With
The pressing member is fixed directly or indirectly to the penetrating member,
The wedge member is disposed between and in contact with the pressing member and the first member,
The contact surface of the pressing member and the wedge member includes a fastening member for a fitting structure configured to form a predetermined angle other than 90 degrees with respect to the axis of the penetrating member in a cross-sectional view. A structure characterized by