JPH09158912A - Connecting structure for two member and connecting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To strengthen connecting force, increase reliability, and improve workability by filling a synthetic resin material into recessed holes, and solidifying the synthetic resin material in the intruded state around the back side of expanded head sections. SOLUTION: A synthetic resin material is diffused in the inner expanded portions of holes 4, 5 and is solidified in the intruded state around the back side of expanded head sections 6, 7, and it serves to obtain firm connection. When cover sections 8, 9 are fitted to the openings of the recessed holes 4, 5, the release of air from the gaps between the outer peripheral edge face of the cover section and the opening edge faces of the recessed holes 4, 5 is allowed, the protrusion of the synthetic resin material is suppressed, and its diffusion and intrusion are improved. When the cover sections 8, 9 are fitted, they exert the so-called centering function, and a good product can be easily obtained. Even when the cover sections 8, 9 are left intact while the synthetic resin material is in the incompletely solidified state after their fitting is completed, the cover sections 8, 9 maintain the closed state and block the deformation of the resin, and the product can be removed early before the resin is completely solidified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure of two members such as connecting two flat plate building materials to each other, connecting parts to each other, connecting a base member to a main body of a specific product, and the like. Regarding the method.

[0002]

2. Description of the Related Art There are already many techniques and materials for connecting two materials. For example, physical methods include a method of fixing with bolts and nuts, a method of fixing taps with cutting screws, a method of using rivets, a method of pressure welding or welding, a method of soldering, etc. There is a method of using. However, there are cases where these methods are not practically applicable in terms of structure and design.
In addition, substances such as Delrin, Teflon, and polyethylene are considered to be quite difficult to obtain sufficient adhesive strength.

[0003]

DISCLOSURE OF THE INVENTION The present invention has been devised in consideration of the above-mentioned circumstances, and has strengthened connection force, enhanced reliability, improved workability, improved productivity, and improved cosmetic appearance. SUMMARY OF THE INVENTION It is an object of the present invention to provide a novel two-member connection structure and method thereof that can achieve cost reduction and the like.

[0004]

In order to achieve the above object, a two member connecting structure according to the present invention connects a first member 1 and a second member 2 with a connecting member 3. Each of the first member 1 and the second member 2 is provided with a connecting first recessed hole 4 and a connecting second recessed hole 5 each having a small mouth and an enlarged inside, and a first recessed portion at both ends of the connecting member 3. The connection first enlarged head 6 and the second recessed hole 5 are sized so as to pass through the mouth of the hole 4 with as little play as possible and to be sunk into the inner enlargement portion of the first recessed hole 4. A second expanding head for connection 7 having a size that allows the first expanding head 6 to pass through in the state of no play and sink into the inner expanding portion of the second recessed hole 5, and the first expanded head 6 is formed in the first recessed hole 4. Further, the second enlarged heads 7 are put into the second recessed holes 5, respectively, and at the same time, the backsides of the enlarged heads 6 and 7 are exposed at the mouths of the recessed holes 4 and 5, respectively. First and second the provided lid 8,9, the synthetic resin material each enlarged head 6,7 by filling the concave hole in 4,5 a synthetic resin material fitted wear with no Rudake play
The first member 1 and the second member 2 are connected by a connecting member 3, and the first member 1 and the second member 2 are connected to each other. Is provided with an enlarged connecting concave hole 4, and the connecting member 3 is provided upright on the second member 2. Further, the tip of the connecting member 3 passes through the mouth of the concave hole 4 with as little play as possible. A connecting expansion head 6 having a size to be recessed inside the recessed hole 4 is provided, the expansion head 6 is set in the recessed hole 4, and the recessed hole 4 is formed at the backside of the recessed head 6. A lid portion 8 that fits into the mouth with as little play as possible is provided, the concave hole 4 is filled with a synthetic resin material, and the synthetic resin material is solidified while being wrapped around the back side of the enlarged head 6. And the synthetic resin material is a thermoplastic synthetic resin material, and the synthetic resin material is a thermosetting synthetic resin. It is a fee.

In order to achieve the above-mentioned object, 2 according to the present invention
The connecting method of the members is the first step of forming the connecting first recessed hole 4 and the connecting second recessed hole 5 each having a small opening and an enlarged inside, in the first member 1 and the second member 2, respectively. Second
There is as little play as possible in the first and second enlarged heads for connection and the mouths of the respective recesses, which are sized to pass through the mouths of the recesses with as little play as possible and to be sunk into the inside enlargement points of the recesses. The second step of obtaining the connecting member 3 provided with the first and second lids that are fitted in the state, the third step of inserting a fixed amount of the thermoplastic synthetic resin material into each concave hole, and the expansion of both into both concave holes Insert the head and apply a pushing force to the same part to heat and melt the thermoplastic synthetic resin material and expand the same material around the back side of the head and each lid part fits into the mouth of each recessed hole The fifth step of cooling and solidifying the heat-melted thermoplastic synthetic resin material is performed in the order listed, and the first member 1
First, a connecting concave hole 4 having a small mouth and an enlarged inside is provided
Process, fits in the mouth of the recessed hole 4 and the enlarged head for connection of the size of the recessed hole 4 which penetrates the mouth of the recessed hole 4 with as little play as possible and is sunk into the internal enlargement portion of the recessed hole. A second step of obtaining a connecting member 3 provided with a lid portion at the tip and a fixing portion to the second member 2 at the base end, a third step of fixing the connecting member 3 to the second member 2, and a recess. The fourth step of inserting a certain amount of thermoplastic synthetic resin material into the hole, inserting the expanding head into the concave hole and applying pushing force to the same part, heating and melting the thermoplastic synthetic resin to expand the material. The fifth step of wrapping around the back side of the part and the state where each lid is fitted in the mouth of each recessed hole, and the sixth step of cooling and solidifying the heat-melted thermoplastic synthetic resin material are performed in the order listed. It was done,
The thermoplastic synthetic resin material is in the form of small pieces, and the thermoplastic synthetic resin material is in the form of particles.

Further, the first step, the first step, and the second step for providing the connecting first recessed hole 4 and the connecting second recessed hole 5, which have a small opening and an enlarged inside, are provided in each of the first member 1 and the second member 2. Two
There is as little play as possible in the first and second enlarged heads for connection and the mouths of the respective recesses, which are sized to pass through the mouths of the recesses with as little play as possible and to be sunk into the inside enlargement points of the recesses. The second step of obtaining the connecting member 3 provided with the first and second lids that are fitted in the state, the third step of inserting a fixed amount of thermosetting synthetic resin material into each concave hole, and the both concave holes. The fourth step of inserting the enlarged head and applying a pushing force to the same to wrap the same material around the back of the enlarged head and the state where each lid is fitted in the mouth of each recess, heat. The fifth step of solidifying the curable synthetic resin material is performed in the order listed, and the first step of forming the connecting concave hole 4 having a small opening and an enlarged inside in the first member 1, the concave hole 4 Of the enlarged head and the concave hole for connection that are large enough to pass through the mouth of the The second step of obtaining the connecting member 3 in which the lid portion fitted in the state with as little play as possible is provided at the tip end, and the fixing portion to the second member 2 is provided at the base end portion, the connecting member 3 is provided as the second member. 3rd step of fixing to 2 and 4th step of inserting a certain amount of thermosetting synthetic resin material into the concave hole, inserting the enlarged head into the concave hole and applying pushing force to the same portion to expand the same material The fifth step, in which the lid is wrapped around the back side and the lid is fitted in the mouth of each recess, and the sixth step in which the thermosetting synthetic resin material is solidified are performed in the order listed. Yes,
And, the thermosetting synthetic resin material is a liquid,
The thermosetting synthetic resin material is a powder.

[0007]

In the present invention, the synthetic resin material is solidified while diffusing in the inside expanding portion of each connecting concave hole and wrapping around the back side of each connecting expanding head to secure a strong connection. In the present invention, the lid portion suppresses the protrusion of the synthetic resin material while allowing the air to be expelled from between the outer peripheral edge surface and the mouth edge surface of the concave hole when it is fitted in the mouth of the concave hole, and The fitting of the lid part fulfills a so-called centering function, and after the fitting is completed, the lid part maintains a closed state even if the synthetic resin is left in an incompletely solidified state (semi-solidified state). Prevents resin deformation.

[0008]

As described above, the two-member connecting structure according to claim 1 connects the first member 1 and the second member 2 to the connecting member 3.
The first member 1 and the second member 2 are each provided with a connecting first recessed hole 4 and a connecting second recessed hole 5 each having a small opening and an enlarged inside, and a connecting member. Three
The first enlarged head portion 6 for connection, which is large enough to pass through the mouths of the first recessed holes 4 in both ends of the first recessed portion 4 with as little play as possible and to be immersed in the inner enlarged portion of the first recessed hole 4, A second expanding head 7 for connection, which has a size to pass through the mouth of the recessed hole 5 with as little play as possible and to be immersed in the internal expansion part of the second recessed hole 5, is provided. To the first recessed hole 4 and the second enlarged head 7 into the second recessed hole 5, respectively, and at the back side of each enlarged head 6 and 7, play as much as possible in the mouths of the recessed holes 4 and 5. The first and second lid portions 8 and 9 which are fitted without being provided are provided, the insides of the recessed holes 4 and 5 are filled with the synthetic resin material, and the synthetic resin material is wound around the back sides of the enlarged heads 6 and 7. Since it is solidified in the embedded state, it is possible to reliably provide a product or the like in which the two members are firmly connected, and the connecting structure of the two members according to claim 2 is the first.
A member 1 and a second member 2 are connected by a connecting member 3, wherein the first member 1 is provided with a connecting recessed hole 4 having a small opening and an enlarged inside, and the second member 2 is connected. The member 3 is erected, and further, the tip of the connecting member 3 passes through the mouth of the recessed hole 4 with as little play as possible, and is sunk into the inner enlargement portion of the recessed hole 4. A portion 6 is provided to make the enlarged head 6 immerse into the recessed hole 4, and a lid portion 8 which is fitted to the mouth of the recessed portion 4 with as little play as possible at the back side of the enlarged head 6 is provided. Since the inside of 4 is filled with a synthetic resin material and the synthetic resin material is solidified in a state of being wrapped around the back side of the enlarged head 6, it is possible to reliably provide a product in which the two members are firmly connected, Since the synthetic resin material is a thermoplastic synthetic resin material, the connection structure of the two members according to 3 provides a product that is resistant to low temperature environments. Suitable coupling structure of two members according to claim 4, which is suitable for providing a strong product to a high-temperature environment because the synthetic resin material is a thermosetting synthetic resin material,

In the method for connecting two members according to a fifth aspect, as described above, the first recessed hole 4 for connection and the second connection hole for connection 2 each of which has a small opening and is enlarged in each of the first member 1 and the second member 2. The first step of providing the recessed holes 5 respectively, the first and the first connecting members of a size that passes through the mouths of the first and second recessed holes with as little play as possible and is sunk into the enlarged internal portion of each recessed hole. 2 Second step of obtaining the connecting member 3 provided with the first and second lids that fit into the enlarged head and the mouth of each recess with as little play as possible, a certain amount of thermoplastic synthesis in each recess The third step of inserting the resin material, insert both enlarged heads into both concave holes, apply a pushing force to the same portions, heat and melt the thermoplastic synthetic resin material, and wrap the material behind the enlarged heads. Fourth step in which the lid is fitted and the lids are fitted in the mouths of the recesses, and the thermoplastic synthetic resin material is heated and melted. Since the fifth step of cooling and solidifying is performed in the listed order, it is possible to easily provide a product or the like in which the two members are firmly connected and which is resistant to a low temperature environment, and the method for connecting the second member according to claim 6 is A first step of providing a connecting concave hole 4 having a small opening and an enlarged inside in the first member 1, a size of passing through the opening of the concave hole 4 with as little play as possible and immersing into the inside expanding portion of the concave hole. A connecting member 3 is provided which has, at its distal end, a lid portion that fits into the enlarged head portion for connection of the bellows and the mouth of the recessed hole with as little play as possible, and a fixing portion to the second member 2 at the base end. The second step, the third step of fixing the connecting member 3 to the second member 2, the fourth step of inserting a fixed amount of thermoplastic synthetic resin material into the concave hole, and the same portion by inserting the enlarged head into the concave hole The thermoplastic synthetic resin is heated and melted by applying a pressing force to the material, and the material is wrapped around the back of the enlarged head. Since the state and the step in which each lid is fitted in the mouth of each recessed hole and the sixth step in which the thermoplastic synthetic resin material that has been heated and melted are cooled and solidified are performed in the order listed, the two members are solid. The method of connecting two members according to claim 7, which enables easy provision of a product resistant to a low temperature environment connected to the, and the thermoplastic synthetic resin material is in a small piece shape, so that the small piece shape having a certain size is formed. If you prepare up to a large number and put a fixed number in each concave hole, it is possible to easily carry out quantitative loading of the thermoplastic synthetic resin material and it is effective in providing a good product, In the method of connecting two members according to claim 8, since the thermoplastic synthetic resin material is a granular material, the fixed amount of the thermoplastic synthetic resin material can be easily put in the same manner as in the method of connecting the two members according to claim 7. It is effective in providing good products,

A method for connecting two members according to a ninth aspect is the first method.
The first step of providing the first recessed hole 4 for connection and the second recessed hole 5 for connection, each of which has a small mouth and an enlarged inside, in each of the member 1 and the second member 2, the mouths of the first and second recessed holes are provided as much as possible. The first and second enlarged heads for connection, which are sized to pass through in a state without play and to be sunk into the internal enlargement portion of each recessed hole, and to be fitted into the mouth of each recessed hole with as little play as possible 1st and 2nd
The second step of obtaining the connecting member 3 provided with the lid portion, the third step of inserting a fixed amount of thermosetting synthetic resin material into each concave hole, and inserting both enlarged heads into both concave holes to form the same portion. A fourth step of applying a pushing force to wrap the same material around the back of the enlarged head and a state in which each lid is fitted in the mouth of each recessed hole, and a fifth step of solidifying the thermosetting synthetic resin material Since the steps are performed in the listed order, it is possible to easily provide a product in which the two members are firmly connected to each other and which is resistant to a high temperature environment. The first step of providing a connecting concave hole 4 having a small internal enlargement, the expanding head for connecting having a size that passes through the mouth of the concave hole 4 with as little play as possible and is immersed in the internal expanding portion of the concave hole. And the lid member that fits into the mouth of the recessed hole with as little play as possible, and the second member 2
Second step of obtaining a connecting member 3 provided with fixing portions to the base end respectively, a third step of fixing the connecting member 3 to the second member 2, and a fixed amount of thermosetting synthetic resin material in the concave hole. 4th
Process, inserting the enlarged head into the concave hole and applying a pushing force to the same part to wrap the material around the back side of the enlarged head and the state where each lid is fitted in the mouth of each concave hole Since the fifth step to perform and the sixth step to solidify the thermosetting synthetic resin material are performed in the listed order, it is possible to easily provide a product in which the two members are firmly connected and resistant to a low temperature environment, etc. In the method of connecting two members according to item 11, since the thermosetting synthetic resin material is a liquid material, it is possible to easily provide a product in which the two members are firmly connected and which is resistant to a high temperature environment. Since the thermosetting synthetic resin material is a powder, the method of connecting the members makes it possible to easily provide a product in which the two members are firmly connected and resistant to a high temperature environment.

In particular, in the two member connecting structure and method according to the present invention, the synthetic resin material is solid because it is diffused in the inside enlargement portion of each recessed hole and is solidified in a state of being wrapped around the back side of each enlargement head. And the lid part pushes out the synthetic resin material while allowing air to be expelled from between the outer peripheral surface and the edge surface of the concave hole when it is fitted in the mouth of each concave hole. The above-mentioned diffusion and wraparound are suppressed by suppressing the above, and the fitting of the lid part fulfills a so-called centering function to enable easy provision of non-defective products. Even if it is left while it is in the (semi-solidified state), the lid maintains the closed state to prevent the resin from deforming, so the product can be removed from the manufacturing machine early without waiting for the solidification to complete. The number of products processed per unit time In addition, it has excellent effects that the connecting member is not exposed on the front side when the connection is completed and the appearance is good, and strengthens the connecting force, enhances reliability, and works. It is possible to completely achieve the intended purpose of providing a new two-member connecting structure and a method therefor capable of achieving improved properties, improved productivity, improved cosmetics, and reduced cost.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the first embodiment shown in FIGS. 1 to 3, two flat plate building materials, that is, the first member 1 and the second member 2 are connected by a connecting member 3 made of iron or a metal which produces a wose current. Each of the first member 1 and the second member 2 is provided with a connecting first recessed hole 4 and a connecting second recessed hole 5 each having a small opening and an enlarged inside, and both ends of the connecting member 3 are provided. The first enlarged head 6 for connection, which has a size that allows it to pass through the mouth of the first recessed hole 4 with as little play as possible and to be sunk into the inner enlargement portion of the first recessed hole 4, and the first recessed hole. A second expanding head 7 for connection which is large enough to pass through the mouth of No. 5 with as little play as possible and to be sunk into the inside expanding portion of the second recessed hole 5 is provided. First and second lids 8 and 9 which are fitted to the mouths of the recessed holes 4 and 5 with as little play as possible at the back side are provided, and then the first and second lids are provided. Thermoplastic synthetic resin small pieces (quantitatively molded, cut into a certain size, etc.) 11 and 12 prepared in advance on the enlarged heads 6 and 7 are temporarily fixed by adhesion or the like (see phantom lines in FIG. 3). Then, after inserting the enlarged heads 6 and 7 into the recessed holes 4 and 5 and applying a pushing force, the small piece-shaped bodies 11 and 12 are heated and melted by an external magnetic field to melt the melted material. In a state in which they are wrapped around the back sides of the respective enlarged heads 6 and 7 and in a state in which the lid portions 8 and 9 are fitted in the mouths of the respective recessed holes 4 and 5, and then the above-mentioned heated melt is cooled and solidified. Two flat plate building materials, that is, one in which the first member 1 and the second member 2 are firmly connected,

In the second embodiment shown in FIG. 4, a first member (flat plate building material) 1 and a second member (frame) 2 are connected to each other by a connecting member 3
The first member 1 is provided with a connecting concave hole 4 having a small opening and an enlarged inside, and the second member 2
A connecting member 3 is erected by a nut tightening 13 on the upper end of the connecting member 3, and further, the end of the connecting member 3 passes through the mouth of the recessed hole 4 with as little play as possible, and is recessed into the inner enlarged portion of the recessed hole 4. An enlarged head portion 6 for connection having a size is provided, and the enlarged head portion 6 is provided with a concave hole 4
And the recessed hole 4 at the backside of the enlarged head 6.
A lid portion 8 that fits into the mouth of the container with as little play as possible is provided, the inside of the recessed hole 4 is filled with a synthetic resin material, and the synthetic resin material is solidified while being wrapped around the back side of the enlarged head portion 6. It is a thing.

The standing of the connecting member 3 with respect to the second member 2 is different from the above-mentioned method of tightening the nut, that is, the method of implanting,
It may be provided by a screwing method, a welding method, a press-fitting method, an integral construction method, or the like.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a connection completed product showing a first embodiment of the present invention.

FIG. 2 is an exploded cross-sectional view showing the intermediate step of the same.

FIG. 3 is a perspective view of FIG. 2A-A.

FIG. 4 is a cross-sectional view of a connection completed product showing a second embodiment of the present invention.

[Explanation of symbols]

 1 1st member 2 2nd member 3 Connecting member 4 1st recessed hole for connection 5 2nd recessed hole for connection 6 1st expansion head for connection 7 2nd expansion head for connection 8 1st lid part 9 2nd Lid 11, 12 Small piece 13 Nut tightening

Claims (12)

[Claims] 1. A first member 1 and a second member 2 are connected by a connecting member 3, which comprises a first member 1 and a second member 2.
Each of the members 2 has a small mouth and an enlarged inner part.
The recessed hole 4 and the second recessed hole 5 for connection are provided, and the both ends of the connecting member 3 pass through the mouths of the first recessed hole 4 with as little play as possible to enlarge the inside of the first recessed hole 4. The first enlarged head 6 for connection having a size to be immersed therein, and the size to be able to pass through the mouth of the second recessed hole 5 with as little play as possible and to be immersed in the internally enlarged portion of the second recessed hole 5. And a second enlarged head 7 for connection of the first enlarged head 6 and the second enlarged head 7 in the first recessed hole 4 and the second recessed hole 5, respectively. First and second lid portions 8 and 9 which are fitted to the mouths of the recessed holes 4 and 5 with as little play as possible are provided at the backside portions of 6 and 7, and the insides of the recessed holes 4 and 5 are made of synthetic resin material. A two-member connection structure characterized in that the synthetic resin material is filled and solidified in a state of being wrapped around the back sides of the respective enlarged heads 6, 7. 2. A first member 1 and a second member 2 are connected by a connecting member 3, wherein the first member 1 is provided with a connecting concave hole 4 having a small opening and an enlarged interior. A connecting member 3 is provided upright on the second member 2, and the tip of the connecting member 3 passes through the mouth of the recessed hole 4 with as little play as possible, and is recessed into the inner enlarged portion of the recessed hole 4. A lid which is provided with an enlarged head portion 6 for connection, which makes the enlarged head portion 6 immerse in the recessed portion 4 and fits into the mouth of the recessed portion 4 at the back side portion of the enlarged head portion 6 with as little play as possible. A connecting structure of two members, characterized in that a portion 8 is provided, the inside of the concave hole 4 is filled with a synthetic resin material, and the synthetic resin material is solidified in a state of being wrapped around the back side of the enlarged head 6. 3. The two-member connecting structure according to claim 1, wherein the synthetic resin material is a thermoplastic synthetic resin material. 4. The two-member connecting structure according to claim 1, wherein the synthetic resin material is a thermosetting synthetic resin material. 5. A first step, a first step, and a second step for providing a connecting first recessed hole 4 and a connecting second recessed hole 5 each having a small opening and an enlarged inside, in each of the first member 1 and the second member 2. 2 The 1st and 2nd enlarged heads for connection, which are of a size that passes through the mouths of the recessed holes with as little play as possible, and sinks into the inner enlargement of each recessed hole, and as much play as possible into the mouths of each recessed hole. The second step of obtaining the connecting member 3 provided with the first and second lids which are fitted in the absence state, the third step of inserting a fixed amount of the thermoplastic synthetic resin material into each of the concave holes, and the both of the concave holes. Inserting the expansion head and applying a pushing force to the same, heat and melt the thermoplastic synthetic resin material and wrap the material around the back of the expansion head, and each lid part to the mouth of each recessed hole. It is characterized in that a fourth step of bringing the resin into a fitted state and a fifth step of cooling and solidifying the thermoplastic synthetic resin material that has been heated and melted are performed in the order listed. And a method of connecting the two members. 6. A first step of providing a connecting recessed hole 4 having a small opening and an enlarged inside in the first member 1, passing through the opening of the recessed hole 4 with as little play as possible and enlarging the inside of the recessed hole. Connection with an enlarged head for connection and a lid that fits into the mouth of the recessed hole with as little play as possible at the tip, and a fixing portion to the second member 2 at the base end Second step of obtaining the member 3 for connection, the third step of fixing the connecting member 3 to the second member 2, the fourth step of inserting a fixed amount of thermoplastic synthetic resin material into the concave hole, and the enlarged head in the concave hole. After inserting and applying a pushing force to the same part, the thermoplastic synthetic resin is heated and melted and the same material is wrapped around the back side of the enlarged head and the state where each lid is fitted in the mouth of each recessed hole. And a sixth step of cooling and solidifying the heat-melted thermoplastic synthetic resin material in the order listed. Method of connecting two members. 7. The method for connecting two members according to claim 5, wherein the thermoplastic synthetic resin material is in the form of a small piece. 8. The method for connecting two members according to claim 5, wherein the thermoplastic synthetic resin material is particles. 9. A first step, a first step, and a second step for providing a connecting first recessed hole 4 and a connecting second recessed hole 5, respectively, each having a small opening and an enlarged inside, in each of the first member 1 and the second member 2. 2 The 1st and 2nd enlarged heads for connection, which are of a size that passes through the mouths of the recessed holes with as little play as possible, and sinks into the inner enlargement of each recessed hole, and as much play as possible into the mouths of each recessed hole. The second step of obtaining the connecting member 3 provided with the first and second lids that are fitted in the absence state, the third step of inserting a fixed amount of thermosetting synthetic resin material into each concave hole, and the both concave holes A fourth step in which both enlarged heads are inserted and a pressing force is applied to the same portions to wrap the same material around the back side of the enlarged heads and each lid is fitted in the mouth of each recess, A method for connecting two members, characterized in that the fifth step of solidifying the thermosetting synthetic resin material is performed in the order listed. 10. A first step of providing a connecting concave hole 4 having a small opening and an enlarged inside in the first member 1. Passing through the opening of the concave hole 4 with as little play as possible, the inside expanding portion of the concave hole. Connection with an enlarged head for connection and a lid that fits into the mouth of the recessed hole with as little play as possible at the tip, and a fixing portion to the second member 2 at the base end Second step of obtaining the member 3 for connection, the third step of fixing the connecting member 3 to the second member 2, the fourth step of inserting a fixed amount of thermosetting synthetic resin material into the concave hole, and the enlarged head in the concave hole. Step 5: Inserting a pressing force to the same part and applying the same to the back side of the enlarged head and the state where each lid is fitted in the mouth of each recessed hole, thermosetting synthesis A method for connecting two members, wherein the sixth step of solidifying the resin material is performed in the order listed. 11. The method for connecting two members according to claim 9, wherein the thermosetting synthetic resin material is a liquid material. 12. The method for connecting two members according to claim 9, wherein the thermosetting synthetic resin material is powder.