JP2019190579A - Connector for connecting members together and connector structure for connecting members together - Google Patents

Abstract

To provide a male type connecting component and a female type connecting component improving design characteristic and usability and a connecting structure for connecting members together.SOLUTION: A connector for connecting members together includes: a male type connecting component 11 attached to one member 21; and a female type connecting component 12 attached to the other member 22. The female connecting component 12 is formed with an engagement hole 12H to which the male type connecting component is fitted, the fitting hole is formed such that a sectional shape crossing with a direction in which it is fitted into the male type connecting component 11 is gradually increased toward an inlet side of the male type connecting component 11 or formed substantially the same in a range where it is fitted into the male type connecting component 11, a portion of the male type connecting component 11 fitted into the engagement hole 12H is formed such that a sectional shape crossing at a right angle with the fitting direction is gradually decreased toward an extremity end of the portion or formed substantially the same over an entire length of the portion.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a joining tool for joining members together and a joining structure for joining members together.

  Conventionally, for example, when a plurality of plate members are joined to form a top plate, in order to join the members, a plurality of plate members are straddled with metal fittings from the surface of the plate member and nails. The method of hitting may be taken. Further, a method may be employed in which a hole for inserting a so-called dowel is formed on the side surface of the plate member, and the dowel is inserted into the hole and adhered with an adhesive.

  In addition, when assembling a table by joining legs to the top board, a method of striking screws or nails across the top board and legs with L-shaped metal fittings may be used to join the legs to the top board. .

  However, when the plate member is joined using the metal fitting or when the top plate and the leg are joined, the design is deteriorated because the metal fitting is exposed. Furthermore, once a screw or nail is struck, it is not possible to easily disassemble the top plate or table once completed. Moreover, when joining a plate member using a dowel, the top plate once completed also cannot be easily disassembled.

  The present invention has been made in view of the above circumstances. That is, the place made into the subject is providing the joining tool and joining structure with high designability and usability.

One form of the connector according to the present invention made for the purpose of solving the above problems is
A connector for joining members together,
A male joint component attached to one member and a female joint component attached to the other member;
The female joint part is formed with a fitting hole into which the male joint part is fitted,
The insertion hole has a cross-sectional shape perpendicular to a direction in which the male joint component is inserted so that the cross-sectional shape gradually increases toward the inlet side of the male joint component, or a range in which the male joint component is inserted. Are molded almost identically,
The portion of the male joint part to be inserted into the insertion hole is formed substantially the same so that the cross-sectional shape perpendicular to the insertion direction gradually decreases toward the tip of the portion, or over the entire length of the portion. It is characterized by.
Moreover, one form of the connector according to the present invention, which has been made for the purpose of solving the above problems,
The portion of the male joint component to be inserted into the insertion hole is formed into a frustum shape in which a cross-sectional shape perpendicular to the insertion direction gradually decreases toward the tip of the portion.
Moreover, one form of the connector according to the present invention, which has been made for the purpose of solving the above problems,
The insertion hole is formed into a frustum shape in which a cross-sectional shape perpendicular to a direction in which the male joint component is inserted gradually increases toward an inlet side of the male joint component.
Moreover, one form of the connector according to the present invention, which has been made for the purpose of solving the above problems,
The gradient of the outer peripheral surface of the portion that fits into the fitting hole of the male joint component with respect to the fitting direction and the gradient of the wall surface of the fitting hole with respect to the direction of fitting into the male joint component are substantially the same. It is characterized by.
One form of the connector according to the present invention made for the purpose of solving the above problems is
The male joint component and the female joint component are made of reinforced fiber plastic.
Moreover, one form of the connector according to the present invention, which has been made for the purpose of solving the above problems,
The male joint part and the female joint part are made of carbon fiber plastic.
Moreover, one form of the connector according to the present invention, which has been made for the purpose of solving the above problems,
The carbon fiber plastic constituting the male joint component includes at least carbon fibers parallel to the direction of insertion into the insertion hole, and circumferential carbon fibers with respect to the insertion direction,
The carbon fiber plastic constituting the female joint part includes at least carbon fibers parallel to the direction in which the male joint part is inserted, and carbon fibers in the circumferential direction with respect to the insertion direction. Features.
One form of the joining structure according to the present invention made for the purpose of solving the above problems is
A joining structure for joining members together,
At least a part of the male joint part is attached to one member,
A female joint part is embedded in the other member,
The female joint part is formed with a fitting hole into which an exposed part of the male joint part is fitted,
The insertion hole has a cross-sectional shape perpendicular to a direction in which the male joint component is inserted so that the cross-sectional shape gradually increases toward the inlet side of the male joint component, or a range in which the male joint component is inserted. Are molded almost identically,
The exposed part of the male joint part is molded substantially the same so that the cross-sectional shape perpendicular to the direction of fitting into the fitting hole gradually decreases toward the tip of the part, or over the entire length of the part,
The exposed portion of the male joining component is fitted into the fitting hole, and the one member and the other member are joined.
Moreover, one form of the joining structure according to the present invention made for the purpose of solving the above problems is as follows:
The exposed part of the male joint part is formed into a truncated cone shape whose cross-sectional shape perpendicular to the direction of insertion into the insertion hole gradually decreases toward the tip of the part,
The insertion hole is formed into a frustum shape in which a cross-sectional shape perpendicular to the direction of insertion into the male joint component gradually increases toward the inlet side of the male joint component,
The gradient with respect to the direction in which the outer peripheral surface of the exposed portion of the male joint component is fitted into the fitting hole and the gradient with respect to the direction in which the wall surface of the fitting hole is fitted into the male joint component are substantially the same. Features.
Moreover, one form of the joining structure according to the present invention made for the purpose of solving the above problems is as follows:
The male joint part and the female joint part are made of carbon fiber plastic.

  According to the joining tool and joining structure which concern on this invention, designability and usability can be improved.

(A) is a side view of 1st Embodiment which concerns on the male type | mold joining component of this invention, (B) is AA end elevation of FIG. 1 (A), (C) is FIG. 1 (A). FIG. 4B is a cross-sectional view taken along the line B-B of FIG. 1, and FIG. (A) is a side view of 1st Embodiment which concerns on the female-type joining component of this invention, (B) is DD end elevation of FIG. 2 (A), (C) is FIG. 2 (A). It is an EE end face figure of, and (D) is a FF sectional view of Drawing 2 (A). It is a perspective view of a 1st embodiment concerning a member to which a male joint component which constitutes a joint structure of the present invention is attached. It is a fragmentary sectional view of the vicinity where the male joining component of FIG. 3 is attached. It is a perspective view of a 1st embodiment concerning a member to which a female joint component which constitutes a joint structure of the present invention is attached. It is a fragmentary sectional view of the vicinity where the female type | mold joining component of FIG. 5 is attached. (A) is a partial cross-sectional view showing a state before the male joint part of FIG. 1 is inserted into the female joint part of FIG. 2, and (B) is a female part of FIG. It is a fragmentary sectional view showing a mode that it has inserted in a mold joined part, and (C) is a fragmentary sectional view showing a mode that a male type joined part of Drawing 1 fits into a female type joined part of Drawing 2. . It is a perspective view showing a mode that the members of FIG. 7 are joined and the top plate is formed. (A) is a side view of 2nd Embodiment which concerns on the male type | mold joining component of this invention, (B) is GG end elevation of FIG. 9 (A), (C) is FIG. 9 (A). FIG. 11D is a cross-sectional view taken along the line II of FIG. 9A. (A) is a side view of 2nd Embodiment which concerns on the female type | mold joining component of this invention, (B) is JJ end elevation of FIG. 10 (A), (C) is FIG. 10 (A). FIG. 10D is a sectional view taken along the line LL of FIG. 10A. (A) is a partial cross-sectional view showing a state before the male joint part of FIG. 9 is inserted into the female joint part of FIG. 10, and (B) is a female part of FIG. It is a fragmentary sectional view showing a mode that it has inserted in a mold joined part, and (C) is a fragmentary sectional view showing a mode that a male type joined part of Drawing 9 fits into a female type joined part of Drawing 10. . It is a perspective view showing a mode that the male type | mold joining component of FIG. 9 is attached to the leg of a table. It is a perspective view showing a mode that the female type | mold joining component of FIG. 10 is attached to the top plate of a table. It is a perspective view showing a mode that the member of FIG. 12 and the member of FIG. 13 are joined, and the table is formed.

(First embodiment)
The connector 1 which concerns on 1st Embodiment of the connector of this invention is demonstrated. The joining tool 1 includes a male joining part 11 and a female joining part 12. The male joining part 11 and the female joining part 12 are respectively attached to different members. These members can be joined by the male joining part 11 and the female joining part 12.

  First, the male joint component 11 will be described with reference to FIG. As shown in FIG. 1, the male joint component 11 is formed in a cylindrical shape with both ends open. A central axis X1 (hereinafter referred to as “first axis X1”) of the male joint component 11 is linear.

  Both the outer periphery and inner periphery of the cross section orthogonal to the first axis X1 of the male joint component 11 are circular. Further, the outer peripheral surface 11A and the inner peripheral surface 11B of the male joint component 11 are directed from one end to the other end with respect to the direction of the first axis X1 (hereinafter referred to as “first axial direction”). Molded with a 5% gradient. That is, the male joint component 11 is formed in a tapered shape so that the outer diameter and the inner diameter become smaller from one end toward the other end. Therefore, the external shape of the male joint component 11 is a truncated cone shape.

  In the following description, the end having the smallest outer diameter and inner diameter of the male joint component 11 in the first axial direction is referred to as “first tip 11a”, and the outer diameter and inner diameter of the male joint component 11 are the largest. Is referred to as a “first rear end 11b”. Further, the direction from the first rear end 11b side to the first front end 11a side along the first axial direction coincides with the direction in which the male joint component 11 is inserted into the insertion hole 12H described later.

  The material of the male mold part 11 is carbon fiber reinforced plastic. The kind of carbon fiber contained in this carbon fiber reinforced plastic can be set as appropriate. For example, PAN-based carbon fiber or pitch-based carbon fiber can be applied as the carbon fiber constituting the male joint component 11.

  There are four types of fiber directions of the carbon fibers constituting the male joint component 11: 0 degree, 90 degrees, and ± 45 degrees. The proportions are 50% for 0 degree carbon fiber, 25% for 90 degree carbon fiber, and 25% for ± 45 degree carbon fiber. Note that the fiber direction of the carbon fiber is 0 degree is a direction parallel to the first axis direction. Similarly, 90 degrees is a direction orthogonal to the first axis direction, that is, a circumferential direction with respect to the first axis direction. The +45 degree direction is a direction wound spirally at an inclination of 45 degrees with respect to the first axis direction. The −45 degree direction is a direction wound spirally at an inclination of 45 degrees with respect to the first axis direction so as to cross at 90 degrees opposite to +45 degrees.

  Moreover, the matrix resin contained in the carbon fiber reinforced plastic constituting the male joint component 11 can also be set as appropriate. As the matrix resin contained in the carbon fiber reinforced plastic, for example, a thermosetting resin such as an epoxy resin or a thermoplastic resin such as nylon can be applied.

  In addition, the mechanical characteristic of the carbon fiber reinforced plastic which comprises the male joining component 11 is set suitably by the object attached.

  By the way, the male joint part 11 is divided along the first axial direction into a part embedded in a first member 21 described later and a part inserted into a fitting hole 12H of the female joint part 12 described later. Hereinafter, the former is referred to as “embedded portion 111” and the latter is referred to as “insertion portion 112”. The embedded portion 111 and the fitting portion 112 are formed continuously in the first axial direction. The embedded part 111 is provided on the first rear end 11b side, and the fitting part 112 is provided on the first front end 11a side. Therefore, the cross section orthogonal to the 1st axial direction of the embedding part 111 and the insertion part 112 is gradually small toward the 1st front-end | tip 11a. Specifically, both the embedded portion 111 and the fitting portion 112 are formed into a truncated cone shape whose diameter decreases toward the first tip 11a as a whole.

  In FIG. 1, the embedded portion 111 is formed longer than the insertion portion 112, but this length relationship is not limited to this and may be changed as appropriate. That is, the insertion portion 112 may be made longer. Further, the length of the embedded portion 111 and the length of the insertion portion 112 may be the same.

  The outer diameter of the fitting portion 112 closest to the first rear end 11b, in other words, the outer diameter of the boundary 113 between the fitting portion 112 of the male joint component 11 and the embedded portion 111 is the same as that of the female joint component 12 described later. It is the same as the inner diameter of the second tip 12a.

  Next, the female joint component 12 will be described with reference to FIG. As shown in FIG. 2, the female joint component 12 is formed in a cylindrical shape whose both ends are open. The hollow portion of the female joint component 12 constitutes a fitting hole 12H into which the fitting portion 112 of the male joint component 11 is fitted. Further, the central axis X2 (hereinafter referred to as “second axis X2”) of the female joint component 12 is linear.

  Both the outer periphery and inner periphery of the cross section orthogonal to the second axis X2 of the female joint component 12 are circular. Further, the outer peripheral surface 12A and the inner peripheral surface 12B of the female joint component 12 are directed from one end to the other end with respect to the direction of the second axis X2 (hereinafter referred to as “second axial direction”). Molded with a slope of 2.5%. Accordingly, the female joint component 12 is formed in a tapered shape so that the outer diameter and inner diameter become smaller from one end toward the other end. That is, the cross section orthogonal to the second axis X2 of the female joint component 12 gradually decreases from one end toward the other end. Specifically, the female joint component 12 is formed into a truncated cone shape whose diameter decreases from one end to the other end as a whole. Further, since the inner peripheral surface 12B of the female joint component 12 is also a wall surface that forms the insertion hole 12H, the insertion hole 12H is also formed into a truncated cone shape whose diameter decreases from one end toward the other end. ing.

  In the following, the end having the largest outer diameter and inner diameter of the female joint component 12 in the second axial direction is referred to as “second tip 12a”, and the outer diameter and inner diameter of the female joint component 12 are the smallest. Is referred to as “second rear end 12b”. As described later, the name of the male joint component 12 is opposite to that of the male joint component 11 with respect to the size of the outer diameter and the inner diameter, as will be described later. This is because the second member 22 is inserted into the second member 22 such that the second rear end 12 b is disposed on the surface side of the second member 22 and the second rear end 12 b is disposed on the inner side of the second member 22. Further, the direction from the second front end 12 a side to the second rear end 12 b side along the second axial direction coincides with the direction in which the male joint component 11 is inserted.

  The female joint component 12 is configured to be at least as long as the insertion portion 112 of the male joint component 11. This is because the entire length of the insertion portion 112 is inserted into the insertion hole 12H of the female joint component 12. In the first embodiment, the length of the female joint component 12 is twice the length of the insertion portion 112. Furthermore, the inner diameter of the second tip 12a of the female joint component 12 is the outer diameter of the insertion portion 112 of the male joint component 11 closest to the first rear end 11b, in other words, the insertion portion 112 of the male joint component 11. It is the same as the outer diameter of the boundary 113 with the embedded part 111. With this configuration, when the insertion portion 112 is inserted until the boundary 113 of the male joint component 11 reaches the position of the second tip 12a of the female joint component 12, the insertion portion 112 and the female joint component 12 are connected. The male joint component 11 and the female joint component 12 are brought into a surface pressure state between the outer peripheral surface 112A of the fitting portion 112 and the inner peripheral surface 12B of the female joint component 12, and firmly. Fixed.

  The material of the female joint component 12 and the mechanical characteristics of the material are the same as those of the male joint component 11. Further, the configuration in the fiber direction of the carbon fibers contained in the female joint component 12 is the same as that of the male joint component 11.

  Next, the junction structure 2 according to the first embodiment of the junction structure of the present invention will be described. Specifically, the joining structure 2 that joins the first member 21 and the second member 22 constituting the top plate 20 using the male joining component 11 and the female joining component 12 will be described.

  Initially, the 1st member 21 to which the male joining component 11 was attached is demonstrated using FIG. 3 and FIG.

  As shown in FIG. 3, the first member 21 is a wooden plate-like member formed in a rectangular shape in plan view. Both side surfaces on the long side and both side surfaces on the short side of the first member 21 are formed flat. A side surface on one short side of the first member 21 is a bonding surface to be bonded to the second member 22. Hereinafter, this joint surface is referred to as “first joint surface 21A”.

  Four male joint components 11 protruding from the first joint surface 21 </ b> A are attached to the first member 21 at equal intervals along the short side direction of the first member 21. Four first insertion holes 21a into which the male joining component 11 is inserted are formed at equal intervals along the short side direction of the first member 21 from the first joining surface 21A.

  As shown in FIG. 4, the first insertion hole 21a is perpendicular to the inner side of the first member 21 at the center of the first joining surface 21A in the thickness direction of the first member 21. It is formed in parallel with the long side direction of the member 21.

  The shape of the first insertion hole 21a is cylindrical. The diameter of the first insertion hole 21a is several millimeters larger than the outer diameter of the first rear end 11b of the male joint component 11. Further, the depth of the first insertion hole 21 a is the same as the length of the embedded portion 111. Therefore, in view of the gradient of the outer peripheral surface 11A of the male joint component 11, the embedded portion 111 is substantially fitted in the first insertion hole 21a.

  The adhesive 21b is filled between the embedded portion 111 inserted into the first insertion hole 21a and the first member 21, and the embedded portion 111 and the first member 21 are bonded together by the adhesive 21b. Note that the material of the adhesive 21b can be appropriately set as long as the embedded portion 111 and the first member 21 can be securely bonded. For example, the adhesive 21b can be composed of a vinyl acetate resin emulsion type woodworking adhesive. In addition, as a material constituting the adhesive 21b, an epoxy resin woodworking adhesive, an epoxy resin, a silicone resin, a thermosetting resin such as a polyurea resin, or a thermoplastic resin such as polyethylene and a polyamide resin is applied. Can do.

  Thus, the embedded portion 111 is inserted and fixed in the first insertion hole 21a, while the fitting portion 112 is exposed in a state of protruding from the first joint surface 21A. The exposed fitting part 112 has a truncated cone shape whose diameter decreases toward the first tip 11a as a whole.

  Next, the 2nd member 22 to which the female type | mold joining component 12 was attached is demonstrated using FIG. 5 and FIG. As shown in FIG. 5, the outer shape of the second member 22 is the same as that of the first member 21. The second member 22 is also wooden.

  A side surface on one short side of the second member 22 is a bonding surface to be bonded to the first member 21. Hereinafter, this joint surface is referred to as “second joint surface 22A”. Four female joint components 12 having the second tip 12a aligned with the second joint surface 22A are attached to the second member 22 at equal intervals along the short side direction of the second member 22. ing.

  Four second insertion holes 22a into which the female joint component 12 is inserted are formed at equal intervals along the short side direction of the second member 22 from the second joint surface 22A.

  As shown in FIG. 6, the second insertion hole 22 a is perpendicular to the inner side of the second member 22 at the center of the second member 22 in the thickness direction of the second member 22. The member 22 is formed in parallel to the long side direction.

  The shape of the second insertion hole 22a is cylindrical. The diameter of the second insertion hole 22a is larger by several millimeters than the outer diameter of the second tip 12a of the female joint part 12. Further, the depth of the second insertion hole 22 a is the same as the length of the female joint component 12. Therefore, considering the gradient of the outer peripheral surface 12A of the female joint component 12, the female joint component 12 is substantially fitted into the second insertion hole 22a.

  An adhesive 22b is filled between the female joint component 12 inserted into the second insertion hole 22a and the second member 22, and the female joint component 12 and the second member 22 are bonded by the adhesive 22b. It is glued. As the material of the adhesive 22b, the same material as the adhesive 21b for bonding the male joint component 11 and the first member 21 is used, but a different material may be used.

  The center distance between the first insertion hole 21a and the second insertion hole 22a is the same. In addition, the distances from the both ends of the first member 21 and the second member 22 corresponding to the centers of the first insertion hole 21a and the second insertion hole 22a arranged at both ends are the same. That is, the first insertion hole 21a and the second insertion hole 22a are formed so that each of the four male joint components 11 is in a state where both surfaces of the first member 21 and the second member 22 and both ends in the short side direction are aligned. It is formed so that it can be inserted into four female joint parts 12.

  Next, the joining structure 2 which joins the 1st member 21 and the 2nd member 22 which comprise the top plate 20 using the connector 1, ie, the male type | mold joining component 11 and the female type | mold joining component 12, is demonstrated. As shown in FIGS. 7A to 7B, the male joint component 11 attached to the first member 21 is inserted into the insertion hole 12H of the female joint component 12 attached to the second member 22. 1 Insert from the tip 11a side. Here, the outer peripheral surface 11A of the male joint component 11, in particular, the outer peripheral surface 112A of the fitting portion 112 and the inner peripheral surface 12B of the female joint component 12 are both formed with an inclination of 2.5%. The parallel state can be maintained. Therefore, in the insertion process, a slight gap is secured between the outer peripheral surface 112A and the inner peripheral surface 12B.

  Then, as shown in FIG. 7C, when the boundary 113 between the fitting portion 112 and the embedded portion 111 of the male joint component 11 reaches the position of the second tip 12a of the female joint component 12, the male joint component. 11 has the same outer diameter at the boundary 113 and the inner diameter of the second tip 12a of the female joint part 12, and the outer peripheral surface 112A of the fitting part 112 and the inner peripheral surface 12B of the female joint part 12 are the same. Since it is formed with a gradient, the fitting part 112 and the female joint part 12 are fitted, and the outer peripheral surface 112A of the fitting part 112 and the inner peripheral surface 12B of the female joint part 12 are in a surface pressure state. It is firmly fixed.

  Here, the fact that the boundary 113 of the male joint component 11 reaches the position of the second tip 12a of the female joint component 12 means that the first joint surface 21A and the second joint surface 22A are in surface contact. is there. That is, as shown in FIG. 8, the first member 21 and the second member 22 are joined and firmly integrated by fitting the male joint component 11 and the female joint component 12 to be elongated. The top plate 20 is configured.

  In this way, the male joint component 11 is attached to the first member 21 in a state of protruding and exposed from the first joint surface 21A, and the female joint component 12 is placed so that the tip is flush with the second joint surface 22A. Since it attached to the 2nd member 22, the 1st member 21 and the 2nd member 22 can be easily joined via fitting of the male type joining component 11 and the female type joining component 12. FIG. Here, since the male joint part 11 is attached to the first joint surface 21A and the female joint part 12 is attached to the second joint surface 22A, the male joint part 11 and the female joint part 12 after joining are joined. Is hidden behind the top plate 20 and cannot be seen. Therefore, the designability of the top plate 20 can be prevented from being lowered.

  Further, the first insertion hole 21a and the second insertion hole 22a are formed in the first member 21 and the second member 22, thereby causing a cross-sectional defect. However, the embedded portion 111 made of carbon fiber reinforced plastic is fitted into the first insertion hole 21a, the female joint component 12 made of carbon fiber reinforced plastic is fitted into the second insertion hole 22a, and further the female joint component. Since the insertion portion 112 made of carbon fiber reinforced plastic is inserted into 12, the strength of the cross-sectional defect is strengthened, and the strength of the top plate 20 can be prevented from being lowered.

  Further, the fitting portion 112 of the male joint component 11 constituting the joint 1 is formed into a truncated cone shape whose diameter decreases toward the first tip 11 a as a whole, and the female joint component constituting the joint 1. The 12 insertion holes 12H are formed in a truncated cone shape whose diameter decreases toward the second rear end 12b, the gradients thereof are the same, and the outer diameter at the boundary 113 of the insertion part 112 and the second tip of the insertion hole 12H Since the inner diameter of 12a is the same, the fitting portion 112 of the male joint component 11 and the female joint component 12 are fitted in a state where surface pressure is applied to each other while the insertion portion 112 is easily inserted into the fitting hole 12H. Can be fixed firmly together. On the other hand, since the fitting part 112 of the male joint component 11 and the female joint part 12 are fixed without using an adhesive, the fitting part 112 of the male joint part 11 and the female joint part 12 are fitted. In other words, the top plate 20 can be disassembled by unbonding the first member 21 and the second member 22. Therefore, the usability of the joint structure 2 using the male joint component 11 and the female joint component 12 is improved.

  In the joint structure 2, four male joint parts 11 are attached to the first member 21 and four female joint parts 12 are attached to the second member 22, but some of them, for example, The two male joint parts 11 with one skip in the first member 21 and the two female joint parts 12 with one skip in the second member 22 are interchanged, so-called. The first member 21 and the second member 22 may be joined with a “finger joint” structure. Moreover, as the joining structure 2 using the male joining component 11 and the female joining component 12, the members are joined in a straight line, but the members may be joined in a cross shape including orthogonal and oblique directions. .

  Moreover, although the both ends in the 1st axial direction of the male joining component 11 are opened, you may comprise so that only either one end may be opened. Moreover, although the male joining component 11 is a cylinder shape which has a hollow part, you may comprise so that it may not have a hollow part over the full length. Furthermore, although the second rear end 12b side of the female joint component 12 is open, it may be closed.

(Second Embodiment)
A connector 3 according to a second embodiment of the connector of the present invention will be described. The joining tool 3 includes a male joining part 31 and a female joining part 32. The male joining part 31 and the female joining part 32 are respectively attached to different members. These members can be joined by the male joint component 31 and the female joint component 32. The description will mainly focus on differences from the connector 1 according to the first embodiment.

  First, the male joint component 31 will be described with reference to FIG. As shown in FIG. 9, the male joint component 31 is formed in a cylindrical shape whose both ends are open as a whole, but has a shorter length and a larger inner diameter and outer diameter than the male joint component 11. Has been. The length of the male joint component 31 and the inner diameter and outer diameter of the male joint component 31 are substantially the same.

  Further, the central axis X3 (hereinafter referred to as “third axis X3”) of the male joining component 31 is linear. Further, the outer peripheral surface 31A and the inner peripheral surface 31B of the male joining component 31 are 15. from the one end to the other end with respect to the direction of the third axis X3 (hereinafter referred to as “third axis direction”). It is formed with an inclination of 0%. Therefore, the male joint component 31 is formed in a tapered shape so that the outer diameter and the inner diameter become smaller from one end toward the other end. That is, the cross section perpendicular to the third axis direction of the male joint component 31 gradually decreases from one end toward the other end. Specifically, the male joint component 31 is formed into a truncated cone shape as a whole.

  As with the male joint component 11, the end having the smallest outer diameter and inner diameter of the male joint component 31 in the third axial direction is referred to as a “third tip 31 a”, and the outer diameter of the male joint component 31. The end having the largest inner diameter is referred to as “third rear end 31b”. In addition, the direction from the third rear end 31b side to the third front end 31a side along the third axial direction coincides with the direction in which the male joint component 31 is fitted into a fitting hole 32H described later.

  Moreover, since the material of the male joint component 31 and the mechanical characteristics of the material are the same as those of the male joint component 11 of the first embodiment, the description thereof is omitted. Further, unlike the male joint component 11 of the first embodiment, the male joint component 31 is not divided into the embedded portion 111 and the fitting portion 112, and is fitted into the female joint component 32 as a whole. That is, the male joint component 31 is configured only by a portion that fits into the female joint component 32.

  Next, the female joint component 32 will be described with reference to FIG. As shown in FIG. 10, the female joint part 32 is formed in a cylindrical shape whose both ends are open as a whole. However, the female joint part 32 has a shorter length and a larger inner diameter and outer diameter than the female joint part 12. Has been. The length of the female joint part 32 and the inner diameter and outer diameter of the female joint part 32 are substantially the same. Similarly to the female joint component 12, the female joint component 32 is formed with a fitting hole 32H into which the male joint component 31 is fitted.

  The central axis X4 (hereinafter referred to as “fourth axis X4”) of the female joint component 32 is linear. Further, the outer peripheral surface 32A and the inner peripheral surface 32B of the female joint part 32 are 15. from the one end to the other end with respect to the direction of the fourth axis X4 (hereinafter referred to as “fourth axis direction”). It is formed with an inclination of 0%. Accordingly, the female joint part 32 is formed in a tapered shape so that the outer diameter and the inner diameter become smaller from one end toward the other end. That is, the cross section orthogonal to the fourth axis direction of the female joint part 32 gradually decreases from one end toward the other end. Specifically, the female joint part 32 is formed into a truncated cone shape that decreases from one end toward the other end as a whole. Further, since the inner peripheral surface 32B of the female joint part 32 is also a wall surface that forms the insertion hole 32H, the insertion hole 32H also has a truncated cone shape that decreases from one end toward the other end.

  As in the case of the female joint part 12, the end having the largest outer diameter and inner diameter of the female joint part 32 in the fourth axial direction is referred to as a “fourth tip 32 a”. The end having the smallest outer diameter and inner diameter is referred to as a “fourth rear end 32b”. Further, the direction from the fourth front end 32 a side to the fourth rear end 32 b side along the fourth axial direction coincides with the direction in which the male joining component 31 is inserted.

  Further, the length of the female joint part 32 is the same as the length of the male joint part 31. Further, the inner diameter of the fourth tip 32 a of the female joint part 32 is the same as the outer diameter of the third rear end 31 b of the male joint part 31. In addition, the inner diameter of the fourth rear end 32 b of the female joint part 32 is the same as the outer diameter of the third tip 31 a of the male joint part 31. In addition, since the material of the female type | mold joining component 32 and the mechanical characteristic of the material are the same as that of the female type | mold joining component 12 of 1st Embodiment, the description is abbreviate | omitted.

  By configuring the male joint component 31 and the female joint component 32 in this manner, as shown in FIG. 11, the male joint component 31 has the third rear end 31b reaching the position of the fourth front end 32a. Until the male joint component 31 and the female joint component 32 are fitted, the outer peripheral surface 31A of the male joint component 31 and the inner peripheral surface 32B of the female joint component 32 face each other. It becomes a pressure state and is fixed firmly.

  Next, the junction structure 4 according to the second embodiment of the junction structure of the present invention will be described. Specifically, the joining structure 4 that joins the legs 41 and the top plate 42 constituting the table 40 using the male joining component 31 and the female joining component 32 will be described.

  First, the leg 41 to which the male joint component 31 is attached will be described with reference to FIG. Since the four legs 41 have the same structure, any one leg 41 will be described.

  The leg 41 is formed in a columnar shape as a whole. As shown in FIG. 12, a mounting portion 411 for fitting and mounting the male joint component 31 is formed at the tip of the leg 41. A portion of the leg 41 excluding the attachment portion 411 is referred to as a “main body portion 412”.

  The attachment portion 411 is formed in a convex shape so that the male joint component 31 is fitted from the third rear end 31b side, and the tip of the attachment portion 411 and the third tip 31a of the male joint component 31 coincide. Yes. Therefore, the outer peripheral surface 411A of the mounting portion 411 is formed in a truncated cone shape similar to the inner peripheral surface 31B of the male joint component 31 so that the diameter decreases toward the tip. Further, the outer periphery of the portion of the third rear end 31 b of the male joint component 31 fitted in the attachment portion 411 is continuous with the side surface 412 A of the main body portion 412. The male joint component 31 and the attachment portion 411 are bonded with a predetermined adhesive.

  Next, the top plate 42 to which the female joining component 32 is attached will be described with reference to FIG.

  As shown in FIG. 13, the top plate 42 is formed in a rectangular shape in plan view. In the four corners of the back surface 42 </ b> A of the top plate 42, insertion holes 42 a into which the female joint parts 32 are inserted are formed.

  The shape of the insertion hole 42a is cylindrical. The diameter of the insertion hole 42 a is about several millimeters larger than the outer diameter of the fourth tip 32 a of the female joint part 32. The depth of the insertion hole 42 a is the same as the length of the female joint part 32. Therefore, considering the gradient of the outer peripheral surface 32A of the female joint part 32, the female joint part 32 is substantially fitted into the insertion hole 42a.

  A predetermined adhesive is filled between the female joint part 32 inserted into the insertion hole 42a and the top plate 42, and the female joint part 32 and the top plate 42 are adhered with an adhesive. Yes. Since the length of the female joint part 32 and the depth of the insertion hole 42a are the same, the fourth tip 32a of the female joint part 32 fitted in the insertion hole 42a is flush with the back surface 42A of the top plate 42. It is.

  When the male joint component 31 attached to the leg 41 is inserted into the insertion hole 32H of the female joint component 32 attached to the top plate 42 from the third tip 31a side of the male joint component 31, the male mold The gradient of the outer peripheral surface 31 </ b> A of the joint component 31 and the gradient of the inner peripheral surface 32 </ b> B of the female joint component 32 are the same, and the outer diameter of the third tip 31 a of the male joint component 31 and the fourth of the female joint component 32. Since the inner diameter of the rear end 32b and the outer diameter of the third rear end 31b of the male joint part 31 and the inner diameter of the fourth tip 32a of the female joint part 32 are the same, the male joint part 31 and the female joint The parts 32 are fitted to each other, and the outer peripheral surface 31A of the male joint part 31 and the inner peripheral surface 32B of the female joint part 32 are brought into a surface pressure state and are firmly fixed. As a result, as shown in FIG. 14, the top plate 42 and each of the four legs 41 are joined and firmly integrated to constitute the table 40.

  In this way, the male joint component 31 is attached in a state where it is exposed at the tip of the leg 41, and the female joint component 32 is fitted and attached to the back surface 42A of the top plate 42. The legs 41 and the top plate 42 can be easily joined through the fitting of the joining parts 32. Note that the outer peripheral surface 31A of the male joint component 31 and the inner peripheral surface 32B of the female joint component 32 are directly connected to the legs 41 and the top plate 42 without using the male joint component 31 and the female joint component 32. It is possible to form a simple shape and fit the base material portion of the leg 41 and the base material portion of the top plate 42. In this case, however, the shape of the fitting portion is required to be highly accurate, so that it is difficult to manufacture the legs 41 and the top plate 42. As a result, the male joint component 31 and the female joint component as ready-made products are used. By using 32, the leg 41 and the top plate 42 can be joined easily and reliably.

  Further, the male joint component 31 is attached within the range of the cross section orthogonal to the third axis direction of the main body portion 412 at the distal end portion of the rod-like leg 41, and the female joint component 32 is fitted into the back surface 42A. After the joining, the male joining part 31 and the female joining part 32 are hidden inside the table 40 and cannot be visually recognized. Therefore, the designability of the table 40 can be prevented from being lowered.

  Further, the insertion hole 42a is formed in the top plate 42, thereby causing a cross-sectional defect. However, since the female joint part 32 made of carbon fiber reinforced plastic is fitted into the insertion hole 42a, and further, the male joint part 31 made of carbon fiber reinforced plastic is fitted to the female joint part 32. The strength of the cross-sectional defect is strengthened, and the strength of the table 40 can be prevented from being lowered.

  Further, the male joint component 31 is formed into a truncated cone shape whose diameter decreases toward the third tip 31a as a whole, and the fitting hole 32H of the female joint component 32 decreases in diameter toward the fourth rear end 32b. Each of which has the same gradient, the outer diameter of the third tip 31a of the male joint part 31, the inner diameter of the fourth rear end 32b of the female joint part 32, and the male joint part 31. Since the outer diameter of the third rear end 31b and the inner diameter of the fourth tip 32a of the female joint part 32 are the same, the female joint part 32 and the female joint part 32 can be easily inserted into the fitting hole 32H. The female joint component 32 can be fitted with a surface pressure applied. Further, since the female joint part 32 and the female joint part 32 are fixed without using an adhesive, the fitting between the female joint part 32 and the female joint part 32, in other words, the leg 41 and the ceiling. The table 40 can be disassembled by unbonding the plate 42. Therefore, the usability of the joint structure 4 using the male joint part 31 and the female joint part 32 is improved.

  Further, since the male joint component 31 is cylindrical, it can be fitted into the leg 41. Therefore, the male joint component 31 can be easily attached to the leg 41.

(Other embodiments)
Next, embodiments that are not described in the first embodiment and the second embodiment will be described.

  In the first embodiment and the second embodiment (hereinafter referred to as “first embodiment etc.”), the material of the male joint parts 11 and 31 and the material of the female joint parts 12 and 32 are the same. The material of the male joint parts 11 and 31 may be different from the material of the female joint parts 12 and 32. For example, any one of the materials may be a reinforced fiber plastic other than the carbon fiber reinforced plastic. That is, any one of them may be composed of reinforcing fibers other than carbon fibers.

  The male joint parts 11 and 31 and the female joint parts 12 and 32 are both made of carbon fiber reinforced plastic. The types of carbon fibers used in the male joint parts 11 and 31 and the female mold The type of carbon fiber used for the joining parts 12 and 32 may be different. Alternatively, the type of carbon fiber used in the male bonded parts 11, 31 or the ratio of each fiber direction and the type of carbon fiber used in the female bonded parts 12, 32 or the ratio of each fiber direction May be different.

  Furthermore, the matrix resin used for the male joint parts 11 and 31 may be different from the matrix resin used for the female joint parts 12 and 32.

  Moreover, although the material of male type | mold joining components 11 and 31 and female type | mold joining components 12 and 32 is the same, you may comprise so that mechanical characteristics may differ. For example, the number of carbon fibers included in the male joint components 11 and 31 may be different from the number of carbon fibers included in the female joint components 12 and 32. Furthermore, the porosity between the carbon fibers contained in the male joining parts 11 and 31 may be different from the porosity between the carbon fibers contained in the female joining parts 12 and 32.

  Further, the types and ratios of the fiber directions of the carbon fibers contained in the male joint parts 11 and 31 and the female joint parts 12 and 32 are not limited to the first embodiment and may be set as appropriate. However, it is preferable that at least the carbon fiber in the 0 degree direction and the carbon fiber in the 90 degree direction are included.

  In the first embodiment, the gradient of the outer peripheral surface 11A of the male joint component 11 and the inner peripheral surface 12B of the female joint component 12 is 2.5%. In the second embodiment, the male joint component 31 has a gradient of 2.5%. Although the gradient of the outer circumferential surface 31A and the inner circumferential surface 32B of the female joint part 32 is 15.0%, the gradient is not limited to these values and may be set as appropriate. However, when the male joint component 11 and the female joint component 12 are rod-shaped as in the first embodiment, the gradient of the outer peripheral surface 11A of the male joint component 11 and the inner peripheral surface 12B of the female joint component 12 is as follows. Is preferably in the range of 1.0 to 10.0%. When the male joint component 31 and the female joint component 32 are cup-shaped as in the second embodiment, the outer peripheral surface 31A of the male joint component 31 and the inner peripheral surface 32B of the female joint component 32 are the same. The gradient is preferably in the range of 10.0-20.0%.

  Furthermore, in 1st Embodiment etc., although the external shape of the male joining components 11 and 31 and the insertion holes 12H and 32H of the female joining components 12 and 32 are frustoconical shapes, they may be polygonal frustum shapes. . Further, any one or a part of the polygonal column shape may be formed into a tapered shape. That is, in 1st Embodiment etc., since the part fitted to the female type | mold joining parts 12 and 32 of the male type | mold joining parts 11 and 31 is shape | molded by the truncated cone shape, all in the cross section orthogonal to the said insertion direction. Although the dimension in the direction of is smaller toward the tips 11a and 31a, the dimension in a certain predetermined direction in the cross section may be reduced toward the tips 11a and 31a. Further, in the first embodiment and the like, the insertion holes 12H and 32H, which are portions to be inserted into the male joint parts 11 and 31 of the female joint parts 12 and 32, are formed in a truncated cone shape. Although the dimensions in all directions in the cross section perpendicular to the applied direction are reduced toward the rear ends 12b and 32b, the dimensions in some predetermined directions in the cross section are reduced toward the rear ends 12b and 32b. You may make it.

  In the first embodiment and the like, the gradients of the outer peripheral surfaces 11A and 31A of the male joint components 11 and 31 are the same as the gradients of the inner peripheral surfaces 12B and 32B of the female joint components 12 and 32, but they are different. May be. Further, at least one of the outer peripheral surfaces 11A and 31A of the male joint parts 11 and 31 and the inner peripheral surfaces 12B and 32B of the female joint parts 12 and 32 is not inclined so that the diameter is the same over the entire length. It may be molded. That is, the male joint parts 11 and 31 are formed so that the cross sections orthogonal to the first and third axial directions of the male joint parts 11 and 31 are the same in the range where the male joint parts 11 and 31 are inserted into the insertion holes 12H and 32H. You may do it.

  The product to which the joining structure according to the present invention is applied is not limited to the first embodiment, and may be set as appropriate. For example, the joint structure according to the present invention may be applied to furniture other than the top board and the table. Furthermore, in addition to furniture, the joint structure according to the present invention can be applied to other structures such as construction structures.

  Furthermore, the outer shape, dimensions, and material of the member to which the joining structure according to the present invention is applied are not limited to the first embodiment, and may be set as appropriate. The material of the member is not a natural solid wood made from raw wood, but a fiber board such as plywood, laminated lumber, medium density fiber board (MDF), particle board, or oriented strand board (OSB: It may be an artificially manufactured wood material such as Oriented Standard Board. Further, the material of the member may be metal, plastic, concrete, etc. instead of solid wood or woody material.

DESCRIPTION OF SYMBOLS 1, 3 ... Connector 2, 4 ... Joining structure 11, 31 ... Male type | mold joining component 12, 32 ... Male type | mold joining component 12H, 32H ... Insertion hole 20 ... Top plate 21 ... 1st member 22 ... 2nd member 40 ... Table 41 ... Leg 42 ... Top plate 111 ... Buried part 112 ... Insertion part

Claims (10)

A connector for joining members together,
A male joint component attached to one member and a female joint component attached to the other member;
The female joint part is formed with a fitting hole into which the male joint part is fitted,
The insertion hole has a cross-sectional shape perpendicular to a direction in which the male joint component is inserted so that the cross-sectional shape gradually increases toward the inlet side of the male joint component, or a range in which the male joint component is inserted. Are molded almost identically,
The portion of the male joint part to be inserted into the insertion hole is formed substantially the same so that the cross-sectional shape perpendicular to the insertion direction gradually decreases toward the tip of the portion, or over the entire length of the portion. A connector characterized by the above. The connector according to claim 1,
The joint that is inserted into the insertion hole of the male joint component is formed into a frustum shape in which a cross-sectional shape orthogonal to the insertion direction gradually decreases toward the tip of the part. Ingredients. The connector according to claim 1 or 2,
The fitting is characterized in that the fitting hole is formed into a frustum shape in which a cross-sectional shape perpendicular to the direction of fitting into the male joining component gradually increases toward the inlet side of the male joining component. Ingredients. The connector according to claim 3,
The gradient of the outer peripheral surface of the portion that fits into the fitting hole of the male joint component with respect to the fitting direction and the gradient of the wall surface of the fitting hole with respect to the direction of fitting into the male joint component are substantially the same. A connector characterized by. The connector according to any one of claims 1 to 4,
The male joint part and the female joint part are made of reinforced fiber plastic. The connector according to claim 5,
The male joint part and the female joint part are made of carbon fiber plastic. The connector according to claim 6,
The carbon fiber plastic constituting the male joint component includes at least carbon fibers parallel to the direction of insertion into the insertion hole, and circumferential carbon fibers with respect to the insertion direction,
The carbon fiber plastic constituting the female joint part includes at least carbon fibers parallel to the direction in which the male joint part is inserted, and carbon fibers in the circumferential direction with respect to the insertion direction. Features a connector. A joining structure for joining members together,
At least a part of the male joint part is attached to one member,
A female joint part is embedded in the other member,
The female joint part is formed with a fitting hole into which an exposed part of the male joint part is fitted,
The insertion hole has a cross-sectional shape perpendicular to a direction in which the male joint component is inserted so that the cross-sectional shape gradually increases toward the inlet side of the male joint component, or a range in which the male joint component is inserted. Are molded almost identically,
The exposed part of the male joint part is molded substantially the same so that the cross-sectional shape perpendicular to the direction of fitting into the fitting hole gradually decreases toward the tip of the part, or over the entire length of the part,
An exposed structure of the male joining component is fitted into the fitting hole, and the one member and the other member are joined. The joint structure according to claim 8,
The exposed part of the male joint part is formed into a truncated cone shape whose cross-sectional shape perpendicular to the direction of insertion into the insertion hole gradually decreases toward the tip of the part,
The insertion hole is formed into a frustum shape in which a cross-sectional shape perpendicular to the direction of insertion into the male joint component gradually increases toward the inlet side of the male joint component,
The gradient with respect to the direction in which the outer peripheral surface of the exposed portion of the male joint component is fitted into the fitting hole and the gradient with respect to the direction in which the wall surface of the fitting hole is fitted into the male joint component are substantially the same. Characteristic joining structure. The joint structure according to claim 8 or 9, wherein
The joint structure characterized in that the male joint part and the female joint part are made of carbon fiber plastic.

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