Connecting structures

Abstract

This invention provides a connecting structure that allows two components to be easily and quickly connected using fastening components such as bolts. [Solution] A connecting structure comprising a first member having a through hole through which a bolt is inserted, and a second member having a four-layered notch, connected by a bolt, a flanged nut, and a stopper, wherein the four-layered notch consists of a first notch formed with a width that allows the slit of the stopper to be fitted, a second notch formed with a width that is approximately the same as the flange diameter of the flanged nut, a third notch formed with a width that is larger than the flat diameter of the nut portion of the flanged nut and smaller than the diagonal distance of the nut portion, and a fourth notch formed with a width that is smaller than the flat diameter of the nut portion and larger than the nominal diameter of the bolt.

Description

Technical Field

[0001] The present invention relates to a connection structure for connecting two members using a fastening component such as a bolt.

Background Art

[0002] Conventionally, as a method for connecting two members, a method of connecting using a fitting such as a bolt or a screw is known. For example, Patent Document 1 discloses a connection structure and a connection method for connecting two members using a bolt and a nut.

[0003] Also, as a method for connecting metal members, a method by welding is known. The method by welding is a method of connecting two members by applying heat or pressure to the joint portion of the members.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, a structure or method for connecting thin plates to each other or a thin plate and a plate material using a fastening component such as a bolt is not disclosed.

[0006] Also, when connecting thin metal plates to each other, although a method by welding can be adopted, there is a problem that welding requires a dedicated instrument such as a welding machine and specialized techniques and knowledge. And when performing welding, it is necessary to perform it in a dedicated place such as a factory, and it is difficult to perform connection by welding in a general household.

[0007] Furthermore, no known structure or method exists for connecting components made of different materials (for example, metal components and wooden components) using fastening components such as bolts.

[0008] In view of the above circumstances, the present invention aims to provide a connecting structure that allows two members to be connected simply and quickly using fastening components such as bolts. [Means for solving the problem]

[0009] The first invention is, A connecting structure that connects a first member and a second member with bolts, nuts, and stoppers, The first member has a through hole through which the bolt is inserted, The second member has a three-layered notch at its end that accommodates the shaft portion of the bolt inserted through the through hole, The stopper has a slit for mounting in the notched portion of the three-layer structure, and a through hole in its central portion through which the shaft of the bolt is inserted. The notched portion of the aforementioned three-layer structure is A first notch is formed extending from the end in the direction of bolt insertion, having a width that allows the slit of the stopper to be fitted, and having a length approximately the same as the thickness of the stopper. A second notch, which is continuous with the first notch, is formed with a width that is larger than the flat diameter of the nut and smaller than the diagonal distance of the nut, and is formed with a length that is approximately the same as the thickness of the nut, It consists of a third notch that is continuous with the second notch, having a width smaller than the flat diameter of the nut and larger than the nominal diameter of the bolt, It has a connected structure.

[0010] The second invention is, A connecting structure that connects a first member and a second member with bolts, flanged nuts, and stoppers, The first member has a through hole through which the bolt is inserted, The second member has a four-layered notch at its end, which accommodates the shaft portion of the bolt inserted through the through hole. The stopper has a slit for mounting in the cutout of the four-layer structure, and a through hole in its central part through which the shaft of the bolt is inserted. The notched portion of the aforementioned four-layer structure is A first notch is formed extending from the end in the direction of bolt insertion, having a width that allows the slit of the stopper to be fitted, and having a length approximately the same as the thickness of the stopper. The flange portion of the flanged nut is housed in a second notch that is continuous with the first notch, having a width approximately the same as the flange diameter and a length approximately the same as the thickness of the flange portion. A third notch, which is continuous with the second notch, is formed with a width that is larger than the flat diameter of the nut portion of the flanged nut and smaller than the diagonal distance of the nut portion, and is formed with a length that is approximately the same as the thickness of the nut portion. It consists of a fourth notch that is continuous with the third notch, having a width smaller than the flat diameter of the nut and larger than the nominal diameter of the bolt, It has a connected structure.

[0011] The third invention is, A connecting structure that connects a first member and a second member with flange bolts, embedded nuts, and stoppers, The first member has a housing hole into which the embedded nut is embedded, The second member has a two-layer cutout at its end, which accommodates the head and flange portion of the flange bolt that is inserted into the housing hole. The stopper has a slit for mounting in the notched portion of the two-layer structure, and a through hole in its central portion through which the shaft portion of the flange bolt is inserted. The notched portion of the aforementioned two-layer structure is A first notch portion that extends in a direction opposite to the insertion direction of the flange bolt from the end portion, has a width capable of mounting the slit of the stopper, and is formed to have substantially the same length as the thickness of the stopper, A second notch portion that is continuous with the first notch portion, which houses the head and flange portions of the flange bolt and is formed with a width larger than the flange diameter of the flange portion, It is a connecting structure.

[0012] A fourth invention is A connecting structure for connecting a first member and a second member with a bolt, washer, embedded nut, and stopper, The first member has a receiving hole in which the embedded nut is embedded, The second member has a two-layer notch portion at its end for housing the head of the bolt inserted through the receiving hole and the washer, The stopper includes a slit for mounting on the two-layer notch portion and an insertion hole through which the shaft portion of the bolt is inserted at the center portion, The two-layer notch portion A first notch portion that extends in a direction opposite to the insertion direction of the bolt from the end portion, has a width capable of mounting the slit of the stopper, and is formed to have substantially the same length as the thickness of the stopper, A second notch portion that is continuous with the first notch portion, which houses the head of the bolt and the washer fitted on the shaft portion of the bolt and is formed with a width larger than the outer diameter of the washer, It is a connecting structure.

[0013] A fifth invention is A connecting structure for connecting a first member and a second member with a flange bolt and a stopper, The first member has a through-hole through which the flange bolt is inserted, The second member has a two-layer notch portion at its end for housing the shaft portion of the flange bolt inserted through the through-hole and the stopper, The stopper includes a slit for being attached to the notch of the two-layer structure, and an insertion hole formed at a central portion through which the shaft portion of the flange bolt is inserted and in which an internal thread that engages with the shaft portion of the flange bolt is attached. The notch of the two-layer structure includes a first notch that extends from the end portion in the insertion direction of the flange bolt and is formed with a width substantially the same as the diameter of the through hole, and a second notch that is formed with a width capable of attaching the slit of the stopper, in which the stopper is attached and accommodated, and the shaft portion of the flange bolt screwed in the insertion hole is accommodated, and that is continuous with the first notch. It is a connection structure.

Advantages of the Invention

[0014] According to the connection structure of the present invention, two members can be simply and quickly connected using fastening parts such as bolts.

Brief Description of the Drawings

[0015] [Figure 1] It is a perspective view of the connection structure 1 of the present embodiment. [Figure 2] It is a cross-sectional view of the connection structure 1 of the present embodiment. [Figure 3] It is a front view of the thin metal plate 3 in the connection structure 1 of the present embodiment. [Figure 4] It is a partially enlarged front view and a partially enlarged plan view of the thin metal plate 3 in the connection structure 1 of the present embodiment. [Figure 5] It is a partially enlarged perspective view of the thin metal plate 3 in the connection structure 1 of the present embodiment. [Figure 6] It is a view showing an example using the connection structure 1 of the present embodiment. [Figure 7] It is a schematic view of the connection structure 11 of the present embodiment. [Figure 8] It is a schematic view of the connection structure 21 of the present embodiment. [Figure 9]This is a schematic diagram of the connecting structure 31 of this embodiment. [Figure 10] This is a schematic diagram of the connecting structure 41 of this embodiment. [Figure 11] This is a schematic diagram of a modified example (connecting structure 51) of the connecting structure 41. [Modes for carrying out the invention]

[0016] [Embodiment 1] The following describes the connecting structure 1 of this embodiment with reference to Figures 1 to 6.

[0017] As shown in Figures 1 and 2, the connecting structure 1 of this embodiment connects a thin metal plate 2 (first member) and a thin metal plate 3 (second member) with a bolt 4, a flanged nut 5, and a stopper 6.

[0018] <Description of the components of connecting structure 1> The bolt 4 consists of a head and a shaft. The head of the bolt 4 is hexagonal in shape. The shaft of the bolt 4 has a male thread that can be screwed onto the flanged nut 5, which will be described later.

[0019] The flanged nut 5 consists of a flange portion and a nut portion. The nut portion of the flanged nut 5 has a hexagonal prism shape, and a female thread is provided in its center that can be screwed onto the male thread of the bolt 4. The flange portion of the flanged nut 5 is a circular seating surface that is larger than the flat diameter and diagonal distance of the nut portion, and an insertion hole is formed in its center through which the shaft of the bolt 4 is inserted.

[0020] The stopper 6 is cylindrical in shape, and has a through hole in its center through which the shaft of the bolt 4 is inserted. The stopper 6 also has a slit for attaching to the notch in the thin metal plate 3, which will be described later. There are two slits in the stopper 6, and the two slits are formed in opposing positions.

[0021] The thin metal plate 2 (first member) has a through hole through which the shaft of the bolt 4 is inserted. The diameter of the through hole in the thin metal plate 2 is smaller than the width across flats of the head of the bolt 4 and is about the same size as the nominal diameter of the shaft of the bolt 4.

[0022] As shown in Figure 3, the thin metal plate 3 (second member) has a four-layered notch at its end that accommodates the shaft portion of a bolt 4 inserted through a through hole in the thin metal plate 2. The four-layered notch of the thin metal plate 3 consists of a first notch, a second notch continuous with the first notch, a third notch continuous with the second notch, and a fourth notch continuous with the third notch.

[0023] The first notch extends from the end of the thin metal plate 3 in the direction of insertion of the shaft portion of the bolt 4, and has a width (L1 in Figure 3) that allows the slit of the stopper 6 to be fitted, and is formed to be approximately the same length as the thickness of the stopper 6.

[0024] The second notch is formed to have a width (L2 in Figure 3) approximately the same as the flange diameter of the flange portion of the flanged nut 5, and a length approximately the same as the thickness of the flange portion. The flange portion of the flanged nut 5 is then housed in the second notch.

[0025] The third notch is wider than the flat diameter of the nut portion of the flanged nut 5 and narrower than the diagonal distance of the nut portion (L3 in Figure 3), and is formed to be approximately the same length as the thickness of the nut portion of the flanged nut 5. As described later, the nut portion of the flanged nut 5 is inserted into the third notch from the horizontal direction, and because the third notch is wider than the flat diameter of the nut portion and narrower than the diagonal distance of the nut portion, the flanged nut 5 is less likely to come off the second and third notches and is less likely to rotate.

[0026] The fourth notch is formed with a width (L4 in Figure 3) that is smaller than the flat diameter of the nut portion of the flanged nut 5 and larger than the nominal diameter of the shaft portion of the bolt 4.

[0027] <Explanation of connection method using connection structure 1> A connection method using the connection structure 1 of this embodiment will be described.

[0028] As shown in Figures 4(A) and 5(A), the flanged nut 5 is inserted horizontally into the second and third notches of the thin metal plate 3, so that the flange portion of the flanged nut 5 is housed in the second notch and the nut portion of the flanged nut 5 is housed in the third notch.

[0029] Next, as shown in Figures 4(B) and 5(B), the slit of the stopper 6 is fitted into the first notch of the thin metal plate 3.

[0030] As shown in Figures 4(C) and 5(C), the stopper 6 and flanged nut 5 are mounted or housed in the metal plate 3 from the first notch to the third notch. At this time, as shown in Figure 4(D), the four-layer structure of the metal plate 3 has through holes formed in the center of the stopper 6 and flanged nut 5 through which the shaft of the bolt 4 is inserted.

[0031] Then, the through-hole of the thin metal plate 2 is placed over the through-hole formed in the center of the stopper 6 and the flanged nut 5, the shaft of the bolt 4 is inserted through these through-holes and the through-hole, and the male thread of the shaft of the bolt 4 and the female thread of the nut of the flanged nut 5 are screwed together, thereby connecting the thin metal plate 2 and the thin metal plate 3.

[0032] By using the connection method with connection structure 1, thin plates can be easily connected to each other. For example, as shown in Figure 6(A), the connection method with connection structure 1 can be used when connecting a plate material used to reinforce the leg portion of a workbench or desk to a component that makes up the leg portion. Also, as shown in Figure 6(B), the connection method with connection structure 1 can be used when connecting the bottom plate and side plate of a workbench or desk.

[0033] In summary, the connecting structure 1 of this embodiment is: A connecting structure 1 that connects a first member 2 and a second member 3 with a bolt 4, a flanged nut 5, and a stopper 6, The first member 2 has a through hole through which the bolt 4 is inserted. The second member 3 has a four-layered cutout at its end, which accommodates the shaft portion of the bolt 4 inserted through the through hole. The stopper 6 has a slit for mounting in the four-layered cutout, and a through hole in its center through which the shaft of the bolt 4 is inserted. The four-layered cutout section is A first notch is formed extending from the end of the second member 3 in the direction of bolt 4 insertion, with a width that allows the slit of the stopper 6 to be fitted, and with a length approximately the same as the thickness of the stopper 6. The flange portion of the flanged nut 5 is housed in a second notch that is continuous with the first notch, having a width approximately the same as the flange diameter and a length approximately the same as the thickness of the flange portion. A third notch, which is continuous with the second notch, is formed with a width that is larger than the flat diameter of the nut portion of the flanged nut 5 and smaller than the diagonal distance of the nut portion, and is formed with a length that is approximately the same as the thickness of the nut portion. It consists of a fourth notch that is continuous with a third notch, which is formed with a width smaller than the flat diameter of the nut portion of the flanged nut 5 and larger than the nominal diameter of the bolt 4.

[0034] According to the connecting structure of this embodiment, two thin plates can be easily and quickly connected using fastening components such as bolts.

[0035] [Embodiment 2] Next, the connecting structure 11 of this embodiment will be described with reference to Figure 7. The connecting structure 11 has a similar configuration to the connecting structure 1, but differs in that the notch provided in the thin metal plate (second member) is a three-layer structure instead of a four-layer structure, and that nuts (without flanges) are used for connection instead of flanged nuts. For the sake of convenience in the following explanation, the same reference numerals will be used for components common to the connecting structure 1.

[0036] The connecting structure 11 of this embodiment connects a thin metal plate 2 (first member) and a thin metal plate 13 (second member) with a bolt 4, a nut 15, and a stopper 6 (see Figure 7(A)).

[0037] <Description of the components of the connecting structure 11> The bolt 4 consists of a head and a shaft. The head of the bolt 4 is hexagonal in shape. The shaft of the bolt 4 has a male thread that can be screwed onto the nut 15, which will be described later.

[0038] The nut 15 has a hexagonal prism shape, and its central part is provided with a female thread that can be screwed onto the male thread of the bolt 4.

[0039] The stopper 6 is cylindrical in shape, and has a through hole in its center through which the shaft of the bolt 4 is inserted. The stopper 6 also has a slit for attaching to the notch in the thin metal plate 13, which will be described later. There are two slits in the stopper 6, and the two slits are formed in opposing positions.

[0040] The thin metal plate 2 (first member) has a through hole through which the shaft of the bolt 4 is inserted. The diameter of the through hole in the thin metal plate 2 is smaller than the width across flats of the head of the bolt 4 and is about the same size as the nominal diameter of the shaft of the bolt 4.

[0041] The thin metal plate 13 (second member) has a three-layered notch at its end that accommodates the shaft portion of the bolt 4 inserted through the through hole in the thin metal plate 2. The three-layered notch of the thin metal plate 13 consists of a first notch, a second notch continuous with the first notch, and a third notch continuous with the second notch.

[0042] The first notch extends from the end of the thin metal plate 13 in the direction of insertion of the shaft portion of the bolt 4, and has a width (L11 in Figure 7(B)) that allows the slit of the stopper 6 to be fitted, and is formed to be approximately the same length as the thickness of the stopper 6.

[0043] The second notch is wider than the flat diameter of the nut 15 and narrower than the diagonal distance of the nut 15 (L12 in Figure 7(B)), and is formed to be approximately the same length as the thickness of the nut 15. As described later, the nut 15 is inserted into the second notch from the horizontal direction, and because the second notch is wider than the flat diameter of the nut 15 and narrower than the diagonal distance of the nut 15, the nut 15 is less likely to come out of the second notch and is less likely to rotate.

[0044] The third notch is formed with a width (L13 in Figure 7(B)) that is smaller than the flat diameter of the nut 15 and larger than the nominal diameter of the shaft portion of the bolt 4.

[0045] <Explanation of connection method using connection structure 11> A connection method using the connection structure 11 of this embodiment will be described.

[0046] The nut 15 is inserted horizontally into the second notch of the thin metal plate 13, thereby housing the nut 15 in the second notch.

[0047] Next, the slit of the stopper 6 is fitted into the first notch of the thin metal plate 13.

[0048] As a result, the stopper 6 and nut 15 are fitted or housed in the metal plate 13, extending from the first notch to the second notch. At this time, the three-layered notch of the metal plate 13 has through holes formed in the center of the stopper 6 and nut 15 through which the shaft of the bolt 4 is inserted.

[0049] Then, the through-hole of the thin metal plate 2 is placed over the insertion hole formed in the center of the stopper 6 and the nut 15, the shaft of the bolt 4 is inserted through these through-holes and insertion holes, and the male thread of the shaft of the bolt 4 and the female thread of the nut 15 are screwed together, thereby connecting the thin metal plate 2 and the thin metal plate 13 (Figure 7(C)).

[0050] By using the connection method with the connecting structure 11, thin plates can be easily connected to each other. For example, the connection method with the connecting structure 11 can be used when connecting a plate material used to reinforce the leg portion of a workbench or desk to a component that makes up the leg portion. Furthermore, the connection method with the connecting structure 11 can also be used when connecting the bottom plate and side plates of a workbench or desk.

[0051] In summary, the connecting structure 11 of this embodiment is: A connecting structure 11 that connects a first member 2 and a second member 13 with a bolt 4, a nut 15, and a stopper 6, The first member 2 has a through hole through which the bolt 4 is inserted. The second member 13 has a three-layered notch at its end that accommodates the shaft portion of the bolt 4 inserted through the through hole, The stopper 6 has a slit for mounting in the three-layered cutout, and a through hole in its center through which the shaft of the bolt 4 is inserted. The three-layered cutout section is A first notch is formed extending from the end of the second member 13 in the direction of bolt 4 insertion, with a width that allows the slit of the stopper 6 to be fitted, and with a length approximately the same as the thickness of the stopper 6. A second notch, which is continuous with the first notch, is formed with a width that is larger than the flat diameter of the nut 15 and smaller than the diagonal distance of the nut 15, and is formed with a length that is approximately the same as the thickness of the nut 15. It consists of a third notch that is continuous with a second notch, which is formed with a width smaller than the flat diameter of the nut 15 and larger than the nominal diameter of the bolt 6.

[0052] According to the connecting structure of this embodiment, two thin plates can be easily and quickly connected using fastening components such as bolts.

[0053] [Embodiment 3] Next, the connecting structure 21 of this embodiment will be described with reference to Figure 8.

[0054] The connecting structure 21 of this embodiment connects a wooden board 22 (first member) and a thin metal plate 23 (second member) with flange bolts 24, embedded nuts 25 (for example, threaded inserts), and stoppers 26 (see Figure 8(A)).

[0055] <Description of the components of the connecting structure 21> The flange bolt 24 consists of a head, a flange portion, and a shaft portion. The head of the flange bolt 24 is hexagonal prism-shaped. The flange portion of the flange bolt 24 is thin and circular in shape and serves as a washer. The shaft portion of the flange bolt 24 has a male thread that can be screwed into the embedded nut 25 described later.

[0056] The embedded nut 25 is used by embedding it in wood or the like. It has a cylindrical shape and is provided with a female thread in its center that can be screwed into the male thread of the flange bolt 24.

[0057] The stopper 26 is cylindrical in shape, and has a through hole in its center through which the shaft of the flange bolt 24 is inserted. The stopper 26 is also provided with a slit for attaching to the notch of the thin metal plate 23, which will be described later. There are two slits in the stopper 26, and the two slits are formed in opposing positions.

[0058] The wooden board 22 (first component) is provided with a housing hole into which an embedded nut 25 is embedded.

[0059] The thin metal plate 23 (second member) has a two-layered notch at its end that accommodates the head and flange portion of a flange bolt 24 that is inserted into a receiving hole in the wooden plate 22. The two-layered notch of the thin metal plate 23 consists of a first notch and a second notch that is continuous with the first notch.

[0060] The first notch extends from the end of the thin metal plate 23 in the opposite direction to the insertion direction of the flange bolt 24, and is formed to a width (L21 in Figure 8(B)) that allows the slit of the stopper 26 to be fitted, and to a length that is approximately the same as the thickness of the stopper 26.

[0061] The second notch accommodates the head and flange portion of the flange bolt 24 and is formed with a width (L22 in Figure 8(B)) that is larger than the flange diameter of the flange portion of the flange bolt 24. As will be described later, when connecting using the connecting structure 21 of this embodiment, the flange bolt 24 is inserted through the second notch, so it is suitable that the second notch be formed to be about the same length as, or slightly larger than, the length from the tip of the head of the flange bolt 24 to the end of the shaft portion.

[0062] <Explanation of connection method using connection structure 21> A connection method using the connection structure 21 of this embodiment will be described.

[0063] A recessed nut 25 is embedded in the receiving hole of the wooden board 22.

[0064] Next, the slit of the stopper 26 is fitted into the first notch of the thin metal plate 23.

[0065] When the insertion hole of the stopper 26 and the center portion of the embedded nut 25 embedded in the housing hole of the wooden board 22 are aligned, an insertion hole is formed through which the shaft portion of the flange bolt 24 is inserted.

[0066] Next, the flange bolt 24 is inserted through the second notch in the thin metal plate 23, and the shaft of the flange bolt 24 is inserted through the insertion hole of the stopper 26 and the center of the embedded nut 25, and the male thread of the shaft of the flange bolt 24 and the female thread of the embedded nut 25 are screwed together, thereby connecting the wooden plate 22 and the thin metal plate 23 (Figure 8(C)).

[0067] By using the connection method with the connecting structure 21, wooden boards and thin metal plates can be easily connected.

[0068] In summary, the connecting structure 21 of this embodiment is: A connecting structure in which a first member 22 and a second member 23 are connected by flange bolts 24, embedded nuts 25, and stoppers 26, The first member 22 has a housing hole into which the embedded nut 25 is embedded, The second member 23 has a two-layer cutout at its end, which accommodates the head and flange portion of the flange bolt 24 that is inserted into the housing hole. The stopper 26 has a slit for mounting in the two-layered cutout, and a through hole in its center through which the shaft of the flange bolt 24 is inserted. The notched section has a two-layer structure. A first notch is formed extending from the end of the second member 23 in a direction opposite to the insertion direction of the flange bolt 24, with a width that allows the slit of the stopper 26 to be fitted, and with a length approximately the same as the thickness of the stopper 26. It consists of a second notch that is continuous with a first notch, which accommodates the head and flange portion of the flange bolt 24 and is formed with a width larger than the flange diameter of the flange portion of the flange bolt 24.

[0069] According to the connecting structure of this embodiment, a wooden board and a thin metal plate can be easily and quickly connected using fastening components such as bolts.

[0070] [Embodiment 4] Next, the connecting structure 31 of this embodiment will be described with reference to Figure 9. The connecting structure 31 has a similar configuration to the connecting structure 21, but differs in that bolts and washers are used for connection instead of flange bolts. For the sake of convenience in the following explanation, the same reference numerals will be used for components common to the connecting structure 21.

[0071] The connecting structure 31 of this embodiment connects a wooden board 22 (first member) and a thin metal plate 23 (second member) with bolts 34, washers 37, embedded nuts 25 (for example, threaded inserts), and stoppers 26 (see Figure 9(A)).

[0072] <Description of the components of the connecting structure 31> The bolt 34 consists of a head and a shaft. The head of the bolt 34 is hexagonal in shape. The shaft of the bolt 34 has a male thread that can be screwed into the embedded nut 25 described later.

[0073] The washer 37 is thin and circular in shape, and is used by fitting it onto the shaft of the bolt 34.

[0074] The embedded nut 25 is used by embedding it in wood or the like. It has a cylindrical shape and a female thread in its center that can be screwed onto the male thread of the bolt 34.

[0075] The stopper 26 is cylindrical in shape, and has a through hole in its center through which the shaft of the bolt 34 is inserted. The stopper 26 also has a slit for attaching to the notch in the thin metal plate 23, which will be described later. There are two slits in the stopper 26, and the two slits are formed in opposing positions.

[0076] The wooden board 22 (first component) is provided with a housing hole into which an embedded nut 25 is embedded.

[0077] The thin metal plate 23 (second member) has a two-layered notch at its end that accommodates the head of a bolt 34 and a washer 37, which are inserted into the receiving hole of the wooden plate 22. The two-layered notch of the thin metal plate 23 consists of a first notch and a second notch that is continuous with the first notch.

[0078] The first notch extends from the end of the thin metal plate 23 in the direction opposite to the insertion direction of the bolt 34, and is formed to a width (L31 in Figure 9(B)) that allows the slit of the stopper 26 to be fitted, and to a length that is approximately the same as the thickness of the stopper 26.

[0079] The second notch is formed with a width larger than the outer diameter of the washer 37 (L32 in Figure 9(B)), and the washer 37 fitted to the head and shaft of the bolt 34 is housed in the second notch. As will be described later, when connecting using the connecting structure 31 of this embodiment, the bolt 34 is inserted through the second notch, so it is suitable that the second notch be formed to be about the same length as, or slightly larger than, the length from the tip of the head to the end of the shaft of the bolt 34.

[0080] <Explanation of connection method using connection structure 31> A connection method using the connection structure 31 of this embodiment will be described.

[0081] A recessed nut 25 is embedded in the receiving hole of the wooden board 22.

[0082] Next, the slit of the stopper 26 is fitted into the first notch of the thin metal plate 23.

[0083] When the insertion hole of the stopper 26 and the center portion of the embedded nut 25 embedded in the housing hole of the wooden board 22 are aligned, an insertion hole is formed through which the shaft of the bolt 34 is inserted.

[0084] Next, a bolt 34 with a washer 37 fitted to its shaft is inserted through the second notch in the thin metal plate 23. The shaft of the bolt 34 is then inserted through the insertion hole in the stopper 26 and the center of the embedded nut 25. The male thread on the shaft of the bolt 34 and the female thread on the embedded nut 25 are screwed together, thereby connecting the wooden plate 22 and the thin metal plate 23 (Figure 9(C)).

[0085] By using the connection method with the connecting structure 31, wooden boards and thin metal plates can be easily connected.

[0086] In summary, the connecting structure 31 of this embodiment is A connecting structure in which a first member 22 and a second member 23 are connected by a bolt 34, a washer 37, an embedded nut 25, and a stopper 26, The first member 22 has a housing hole into which the embedded nut 25 is embedded, The second member 23 has a two-layer cutout at its end, which accommodates the head of the bolt 34 and the washer 37 that are inserted into the housing hole. The stopper 26 has a slit for mounting in the two-layered cutout, and a through hole in its center through which the shaft of the bolt 34 is inserted. The notched section has a two-layer structure. A first notch is formed extending from the end of the second member 23 in the direction opposite to the insertion direction of the bolt 34, with a width that allows the slit of the stopper 26 to be fitted, and with a length approximately the same as the thickness of the stopper 26. It consists of a first notch that is continuous with the second notch, which is formed with a width larger than the outer diameter of the washer 37 and accommodates the washer 37 fitted to the head and shaft of the bolt 34.

[0087] According to the connecting structure of this embodiment, a wooden board and a thin metal plate can be easily and quickly connected using fastening components such as bolts.

[0088] [Embodiment 5] Next, the connecting structure 41 of this embodiment will be described with reference to Figure 10.

[0089] The connecting structure 41 of this embodiment connects a wooden board 42 (first member) and a thin metal plate 43 (second member) with flange bolts 44 and stoppers 46 (see Figure 10(A)).

[0090] <Description of the components of the connecting structure 41> The flange bolt 44 consists of a head, a flange portion, and a shaft portion. The head of the flange bolt 44 is hexagonal in shape. The flange portion of the flange bolt 44 is thin and circular in shape and serves as a washer. The shaft portion of the flange bolt 44 has a male thread that can be screwed into the stopper 46, which will be described later.

[0091] The stopper 46 is cylindrical in shape, and has a through hole in its center through which the shaft of the flange bolt 44 is inserted, and which is fitted with a female thread that engages with the shaft of the flange bolt 44. The stopper 46 is also provided with slits for attachment to the notch of the thin metal plate 43, which will be described later. There are two slits in the stopper 46, and the two slits are formed in opposing positions.

[0092] The wooden board 42 (first member) has a through hole through which the shaft of the flange bolt 44 is inserted. The diameter of the through hole in the wooden board 42 is smaller than the flange diameter of the flange portion of the flange bolt 44, and is approximately the same size as the nominal diameter of the shaft of the flange bolt 44.

[0093] The thin metal plate 43 (second member) has a two-layered notch at its end that accommodates the shaft portion of the flange bolt 44 and the stopper 46 inserted through the through hole in the wooden plate 42. The two-layered notch of the thin metal plate 43 consists of a first notch and a second notch that is continuous with the first notch.

[0094] The first notch extends from the end of the thin metal plate 43 in the direction of insertion of the flange bolt 44 and is formed with a width (L41 in Figure 10(B)) that is approximately the same as the diameter of the through hole in the wooden plate 42.

[0095] The second notch is wide enough to accommodate the slit of the stopper 46 (L42 in Figure 10(B)), and is formed to accommodate the stopper 46, as well as the shaft portion of the flange bolt 44 that is screwed into the insertion hole of the stopper 46.

[0096] <Explanation of connection method using connection structure 41> A connection method using the connection structure 41 of this embodiment will be described.

[0097] The through-hole in the wooden plate 42 and the first notch in the thin metal plate 43 are superimposed to form a through-hole through which the shaft of the flange bolt 44 is inserted.

[0098] Next, the stopper 46 is inserted into the second notch of the thin metal plate 43, and the slit of the stopper 46 is fitted into the second notch, thereby housing the stopper 46 in the second notch.

[0099] Then, the shaft of the flange bolt 44 is inserted through the through hole in the wooden plate 42, and the male thread of the flange bolt 44 shaft is screwed into the female thread fitted into the through hole of the stopper 46, thereby connecting the wooden plate 42 and the thin metal plate 43 (Figure 10(C)).

[0100] By using the connection method with the connecting structure 41, wooden boards and thin metal plates can be easily connected.

[0101] In summary, the connecting structure 41 of this embodiment is A connecting structure in which a first member 42 and a second member 43 are connected by flange bolts 44 and stoppers 46, The first member 42 has a through hole through which the flange bolt 44 is inserted, The second member 43 has a two-layered cutout at its end that accommodates the shaft portion of the flange bolt 44 inserted through the through hole and the stopper 46, The stopper 46 has a slit for mounting in the two-layered cutout, and an insertion hole in its center through which the shaft of the flange bolt 44 is inserted, and which is fitted with a female thread that engages with the shaft of the flange bolt 44. The notched section has a two-layer structure. A first notch extends from the end of the second member 43 in the direction of insertion of the flange bolt 44 and is formed with a width approximately the same as the diameter of the through hole of the first member 42, It consists of a second notch that is continuous with a first notch, which is wide enough to accommodate the slit of the stopper 46, and is formed to accommodate the stopper 46 and the shaft portion of the flange bolt 44 that is screwed into the insertion hole of the stopper 46.

[0102] According to the connecting structure of this embodiment, a wooden board and a thin metal plate can be easily and quickly connected using fastening components such as bolts.

[0103] In this embodiment, the connecting structure 41 shows a wooden board and a thin metal plate connected by flange bolts and stoppers, but this embodiment is not limited to this. For example, bolts may be used instead of flange bolts. In other examples, washers may be used together with bolts. The use of flange bolts, or washers together with bolts, has the effect of suppressing or preventing the seating surface from sinking or the bolts from loosening.

[0104] The components and connection methods of the connecting structure described in Embodiments 1 to 5 above are merely examples, and the embodiments of the present invention are not limited to these. The components and connection methods of the connecting structure can be modified as appropriate without altering the essence of the present invention.

[0105] [Other embodiments] In embodiments 1 to 5 described above, examples were shown of connecting thin metal plates to each other or a wooden plate to a thin metal plate, but the present invention is not limited thereto.

[0106] For example, the connecting members do not have to be thin plates; they can be flat plates.

[0107] The connecting members may be made of any material, such as metal, wood, or resin. The two connecting members may be made of the same material or different materials.

[0108] Furthermore, the materials of the bolts, flange bolts, embedded nuts, washers, and stoppers can be appropriately selected depending on the two connecting members. For example, the bolts, flange bolts, embedded nuts, and washers can be appropriately selected from metal or resin. The stoppers can be appropriately selected from metal, resin, or rubber.

[0109] Furthermore, while embodiments 1 to 5 described above show examples where the heads of bolts or flange bolts are hexagonal prism-shaped, the present invention is not limited to these examples.

[0110] For example, bolts or flange bolts may have heads that are cylindrical or have other shapes.

[0111] Furthermore, while embodiments 3 and 5 described above show examples in which a flange bolt is used as one of the fastening components, the present invention is not limited to this.

[0112] For example, instead of flange bolts, bolts alone, or bolts with washers, may be used.

[0113] Furthermore, while embodiments 1 to 5 above show examples where the stopper has a cylindrical shape, the present invention is not limited to this.

[0114] For example, the stopper may be in the shape of a rectangular prism, a hexagonal prism, or other shapes.

[0115] Furthermore, while embodiments 1 to 5 described above show examples in which the stopper has two slits and is formed in opposing positions, the present invention is not limited to this.

[0116] The number and position of the slits in the stopper may be changed to a suitable number and position depending on the shape of the connecting members.

[0117] Furthermore, in Embodiment 5 described above, an example was shown in which a thin metal plate (second member) has a two-layer cutout at its end that accommodates the shaft and stopper of a flange bolt inserted through a through-hole in a wooden plate (first member). However, the present invention is not limited to this.

[0118] For example, as shown in Figure 11(A), the thin metal plate (second member) may have a four-layered notch at its end. In the connecting structure 51, the four-layered notch of the thin metal plate 53 consists of a first notch, a second notch continuous with the first notch, a third notch continuous with the second notch, and a fourth notch continuous with the third notch.

[0119] The first notch extends from the end of the thin metal plate 53 in the direction of insertion of the flange bolt and is formed with a width (L51 in Figure 11(A)) that is approximately the same as the diameter of the through hole in the wooden plate 52.

[0120] The second notch is formed with a width shorter than the diameter of the stopper (L52 in Figure 11(A)) so that the stopper, which is attached to and housed in the third notch described later, is fixed to the third notch.

[0121] The third notch is formed to have a width (L53 in Figure 11(A)) that allows the stopper slit to be fitted, and to a length that allows the stopper to be fitted and housed.

[0122] The fourth notch is formed with a width greater than the nominal diameter of the flange bolt shaft.

[0123] At this point, after the stopper is fitted and housed in the third notch, the shaft of the flange bolt is inserted through the through hole in the wooden plate 52, and the male thread of the flange bolt shaft is screwed into the female thread fitted in the through hole of the stopper, thereby connecting the wooden plate 52 and the thin metal plate 53 (Figure 11(B)).

[0124] In the example shown for the connecting structure 51, a flange bolt is used as one of the fastening components, but the present invention is not limited to this. For example, instead of a flange bolt, only a bolt, or a bolt with a washer, may be used.

[0125] Furthermore, while the example of connecting a wooden board and a thin metal plate was shown in the connecting structure 51, the present invention is not limited to this. For example, the connecting members may be boards. The connecting members may be made of any material, such as metal, wood, or resin. Here, the two connecting members may be made of the same material or different materials. [Industrial applicability]

[0126] The connecting structure of the present invention is suitable for easily and quickly connecting two members using fastening components such as bolts. [Explanation of Symbols]

[0127] 1 Connection structure 2. Thin metal sheet 3. Thin metal sheet 4 bolts 5. Flanged nuts 6 Stopper 11 Connection structure 13 Thin metal sheet 15 nuts 21 Connection structure 22 Wooden planks 23 Thin metal sheet 24 Flange bolts 25 Embedded nuts 26 Stopper 31 Connection structure 34 volts 37 Washers 41 Connection structure 42 wooden planks 43 Thin metal sheet 44 Flange bolts 46 Stopper 51 Connection structure 52 Wooden planks 53 Thin metal sheet

Claims

1. A connecting structure that connects a first member and a second member with bolts, nuts, and stoppers, The first member has a through hole through which the bolt is inserted, The second member has a three-layered notch at its end that accommodates the shaft portion of the bolt inserted through the through hole, The stopper has a slit for mounting in the notched portion of the three-layer structure, and a through hole in its central portion through which the shaft of the bolt is inserted. The notched portion of the aforementioned three-layer structure is A first notch is formed extending from the end in the direction of bolt insertion, having a width that allows the slit of the stopper to be fitted, and having a length approximately the same as the thickness of the stopper. A second notch, which is continuous with the first notch, is formed with a width that is larger than the flat diameter of the nut and smaller than the diagonal distance of the nut, and is formed with a length that is approximately the same as the thickness of the nut, It consists of a third notch that is continuous with the second notch, and is formed with a width smaller than the flat diameter of the nut and larger than the nominal diameter of the bolt. Connected structure.

2. A connecting structure that connects a first member and a second member with bolts, flanged nuts, and stoppers, The first member has a through hole through which the bolt is inserted, The second member has a four-layered notch at its end that accommodates the shaft portion of the bolt inserted through the through hole, The stopper has a slit for mounting in the cutout of the four-layer structure, and a through hole in its central part through which the shaft of the bolt is inserted. The notched portion of the aforementioned four-layer structure is A first notch is formed extending from the end in the direction of bolt insertion, having a width that allows the slit of the stopper to be fitted, and having a length approximately the same as the thickness of the stopper. The flange portion of the flanged nut is housed in a second notch that is continuous with the first notch, having a width approximately the same as the flange diameter and a length approximately the same as the thickness of the flange portion. A third notch, which is continuous with the second notch, is formed with a width that is larger than the flat diameter of the nut portion of the flanged nut and smaller than the diagonal distance of the nut portion, and is formed with a length that is approximately the same as the thickness of the nut portion. It consists of a fourth notch that is continuous with the third notch, having a width smaller than the flat diameter of the nut and larger than the nominal diameter of the bolt. Connected structure.

3. A connecting structure that connects a first member and a second member with flange bolts, embedded nuts, and stoppers, The first member has a housing hole into which the embedded nut is embedded, The second member has a two-layer cutout at its end, which accommodates the head and flange portion of the flange bolt that is inserted into the housing hole. The stopper is provided with a slit for mounting in the notched portion of the two-layer structure, and a through hole in its central portion through which the shaft portion of the flange bolt is inserted. The notched portion of the aforementioned two-layer structure is A first notch is formed extending from the end in a direction opposite to the insertion direction of the flange bolt, having a width that allows the slit of the stopper to be fitted, and having a length approximately the same as the thickness of the stopper. The flange bolt head and flange portion are housed in a second notch that is continuous with the first notch and is formed with a width greater than the flange diameter of the flange portion. Connected structure.

4. A connecting structure that connects a first member and a second member with bolts, washers, embedded nuts, and stoppers, The first member has a housing hole into which the embedded nut is embedded, The second member has a two-layer cutout at its end, which accommodates the head of the bolt and the washer that are inserted into the housing hole. The stopper has a slit for mounting in the notched portion of the two-layer structure, and a through hole in its central portion through which the shaft of the bolt is inserted. The notched portion of the aforementioned two-layer structure is A first notch is formed extending from the end in a direction opposite to the bolt insertion direction, having a width that allows the slit of the stopper to be fitted, and having a length approximately the same as the thickness of the stopper. The head of the bolt and the washer fitted onto the shaft of the bolt are housed in a second notch that is continuous with the first notch and has a width larger than the outer diameter of the washer. Connected structure.

5. A connecting structure that connects a first member and a second member with flange bolts and stoppers, The first member has a through hole through which the flange bolt is inserted, The second member has a two-layered cutout at its end that accommodates the shaft portion of the flange bolt inserted through the through hole and the stopper, The stopper has a slit for mounting in the notched portion of the two-layer structure, and a through hole in its central part through which the shaft portion of the flange bolt is inserted, and which is fitted with a female thread that engages with the shaft portion of the flange bolt. The notched portion of the aforementioned two-layer structure is A first notch extends from the end in the direction of insertion of the flange bolt and is formed with a width approximately the same as the diameter of the through hole, A second notch, continuous with the first notch, is formed to have a width that allows the slit of the stopper to be installed, and to have a length that allows the stopper to be installed and housed, and that accommodates the shaft portion of the flange bolt screwed into the through hole. Connected structure.

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