JP2005155731A - Connector and joint structure of frame member using it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector capable of detachably joining a frame member formed by wood, metal, plastic or the like without using a special tool or the like, facilitating assembly and disassembly, coping with addition of a member and change of shape, joining the common frame member as a column and a beam without receiving limit in the direction of use, and forming structural bodies having various sizes by combining with a frame member having length put in module in advance and a shelf board or the like and having excellent general-purpose property and free design property. <P>SOLUTION: This connector is provided with a. a joint main body having two or more join member insertion holes provided on the same axial line or axial lines crossing orthogonally and mutually, b. a joint side join fitting having a basic part, a projecting or recessed locking part formed in a side part of the basic part, and a fitting projecting part provided protrudedly on a rear surface of the basic part and inserted into the join member insertion holes of the joint main body, and c. a frame side join fitting having a basic part, a recessed or projecting locking part formed in a side part of the basic part and a frame fixing part fixed at the center of a rear surface of the basic part. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention provides a joining tool capable of detachably joining a frame member formed of wood, laminated wood, metal, plastic or the like to a desired size or shape, and frame members made of wood, laminated wood, or the like. It can be easily and firmly joined, and it can prevent loosening of the joints, and by attaching shelf boards and side panels, it can be used for interior goods such as bookshelves, organizers, desks, chairs, outdoor equipment, gardening equipment, furniture, The present invention relates to a joining structure of frame members that can be used for playground equipment, learning materials and the like.

Traditionally, Sunday carpenters using leisure time have been actively conducted. In home centers, etc., in addition to single parts such as squares and plywood, assembly kits that can be assembled with simple tools, system parts that can be assembled and disassembled freely, various tools, etc. Many are sold.
For example, assembling kits that can be used for bookshelves etc. set with wooden pillars and boards etc. and shelf kits with metal pipes and net shelves set, parts are manufactured with predetermined dimensions, It is easy to assemble at low cost.
In addition, (Patent Document 1) states that “a plurality of fitting cylinders having fitting holes with a diameter into which a resin-coated steel pipe coated and bonded with a synthetic resin is fitted integrally in a cross-shaped arrangement, "Synthetic resin joints that are used for assembling various pipe structures by bonding resin-coated steel pipes fitted into fitting holes, and methods for assembling pipe structures using synthetic resin joints" It is disclosed.
Japanese Patent No. 3104131

However, the above conventional techniques have the following problems.
(1) Single-piece members such as square bars and plywood can be manufactured according to the required size and shape, but advanced technology is required to perform all of the work such as cutting, joint processing, and surface finishing of the members. In addition to the need for machining tools and working places, assembly parts such as nails and screws must be prepared separately, which requires man-hours and generates a large amount of garbage. It had the problem of lacking in nature.
(2) Assembly kits made of wooden pillars and plates, and shelf kits made of metal pipes and net shelves are inexpensive and easy without requiring special tools or technology. Although it can be assembled, the dimensions and shape are determined in advance, so it lacks versatility and is unusable, and the members are joined by simple means such as adhesion and screwing, so the strength as a structure is high There was a problem that the purpose of use was limited.
(3) Frame products made of metal such as aluminum are often used mainly on shelves, and the frame is welded and fixed, and the dimensional standards are fixed. In such a case, it has been a problem of being discarded as it is and lacking in resource saving.
(4) Since the synthetic resin joint of (Patent Document 1) has a plurality of fitting cylinders having fitting holes arranged in an intersecting manner and integrally joined, the resin-coated steel pipe is inserted into the fitting hole. It can be assembled simply by bonding, but in order to produce the required dimensions and shape, it is necessary to cut the resin-coated steel pipe with a cutter, etc. There was a problem that it could not be fixed firmly and the purpose of use was limited. Moreover, since the shape of the synthetic resin joint is complicated and manufactured by injection molding, the strength is low, and the strength as a structure is insufficient, resulting in lack of durability. Furthermore, since the synthetic resin joint and the resin-coated steel pipe are bonded together, once assembled, they cannot be disassembled or changed in design, and are discarded as they are when they are not needed. Had.

The present invention solves the above conventional problems, and can detachably join frame members formed of wood, laminated wood, metal, plastic, etc. without using a special tool, etc. easy, Rutotomoni can respond to changes such as adding or shape of the member, the common frame member can joined without the use direction restricting as columns and beams, etc., the frame member and shelves pre modular length It is possible to form a structure of various sizes in combination with a plate, etc., to provide a connector with excellent versatility and design flexibility, and to easily and firmly join frame members to each other and to prevent loosening of the joint. Excellent durability, thinned wood can be used as a frame member, excellent in resource saving, and can be easily attached with shelf boards and side plates to improve rigidity. A goods, other such gardening equipment, and to provide a bonding structure of the frame member which can be used in playground equipment and learning materials, and the like.

In order to solve the above problems, the connector of the present invention has the following configuration.
The connector according to claim 1 of the present invention comprises: a. A joint body having two or more joining member insertion holes formed in any one of a substantially cubic shape, a substantially spherical shape, a substantially cylindrical shape, and a substantially prismatic shape, and formed on the same axis or on axes orthogonal to each other; b. A base portion formed in a substantially flat plate shape, a ridge or a groove engaging portion formed on a side portion of the base portion, and protruded from the back surface of the base portion and inserted into the joint member insertion hole of the joint body. A joint-side fitting having a fitting projection, c. A base formed in a substantially flat plate shape, a groove or protrusion locking portion formed on a side portion of the base and locked to the protrusion or groove locking portion of the joint-side joint fitting; and the base The frame side joint metal fitting which has the frame fixing | fixed part fixedly provided in the center of the back surface of this has the structure provided.
This configuration has the following effects.
(1) Since the joint body having the joint body with the joint member insertion hole formed therein and the joint-side joint metal fitting with the projecting convex part projecting, the joint convex part of the joint side joint metal fitting is provided in the joint member insertion hole of the joint body. The joint body can be easily fixed by being fitted, and the joint body and the joint-side joint fitting provided with the convex or concave locking portions can be integrated.
(2) Since the frame side joint fitting has a concave or convex locking portion and a frame fixing portion, the projection of the joint side joint fitting is secured by fixing the frame fixing portion to the end surface of the frame member to be joined in advance. The groove or groove locking portion and the groove or protrusion locking portion of the frame side joint fitting can be latched, and the joint body and frame side joint fitting provided with the joint side joint fitting are provided. The frame member can be joined via the metal fitting.
(3) By drilling the joining member insertion holes on the same axis of the joint body or on the axes orthogonal to each other, any position can be selected from the three axes perpendicular to the joint body. Since joint-side fittings can be arranged at opposite positions or perpendicular directions across the body, multiple joint-side fittings can be fixed to one joint body, and multiple joint bodies and frame members can be attached. It can be detachably joined and combined, and various frames can be formed.
(4) Since the joint-side fittings disposed and fixed on the joint body and the frame-side fittings disposed and fixed on the frame member are made of metal, the joint body and the frame member can be manufactured with high precision by machining. It can be firmly tightened, can be reassembled and reassembled, and can be used repeatedly.
(5) As the assembly and disassembly can be done simply by sliding and fitting the protrusions or recess engaging portions formed on the joint side joint fitting and frame side joint fitting, respectively, the work is easy. There is no sticking and strong bonding can be performed.

Here, in addition to metals such as aluminum and stainless steel, wood, and synthetic resin , the joint body is made of composite synthetic resin, such as Ain Super Wood (trade name) formed by mixing PET powder with wood powder. Can be used. In particular, when the joint body is made of metal, the connection with the joint-side fitting is strengthened and the reliability is excellent. It is preferable that the same metal as the metal used for the joint body is used for the material of the joint side joint fitting and the frame side joint fitting.
A metal joint body, joint-side fitting, and frame-side fitting are preferably rust-proofed. As a result, it is possible to prevent rusting in a state in which the joint member insertion hole of the joint body and the fitting convex portion of the joint side joint fitting, and the convex and concave locking portions of the joint side joint fitting and the frame side joint fitting are fixed. The workability of disassembly and reassembly can be improved.
When the joint body is, for example, a substantially cubic body, the frame members can be joined in all three axes around the joint body by previously forming joint member insertion holes on all six surfaces. By attaching a detachable fitting lid, etc., to the joint member insertion hole that is not used at the time of assembly, the joint member insertion hole can be made invisible from the appearance, and the frame member can be added at any time by easily removing the fitting lid Thus, it is possible to cope with design changes. Note that the joining member insertion holes formed in the surfaces facing each other may be formed independently, or may be communicated at the center.

The shape of the fitting convex part of the joint side joining metal fitting inserted in the joining member insertion hole and the joining member insertion hole is formed in a substantially circular shape or a polygonal shape. When it is formed in a polygonal shape (polygon such as a triangle or octagon), the fixing work can be easily performed without rotation of the joint-side joint fitting during insertion.
The joint body and the joint-side joint fitting can be fixed only by fitting the joint member insertion hole and the fitting convex portion, but can be more firmly fixed by using an adhesive.
The frame member and the frame side joint fitting are fixed by forming a joint member fixing hole in the frame member and fitting the frame fixing portion of the frame side joint fitting. For adhesion, a low-viscosity epoxy adhesive that can be easily injected into the bonding member fixing hole is suitably used.
When the joint body and joint-side fittings and the frame member and frame-side fittings are fixed only by fitting, they can be easily disassembled and assembled without the use of tools, and learning for playground equipment and education It can be suitably used for teaching materials, hand training equipment, shelves, bookcases, and the like.

In addition, the fitting convex part of the joint side joint metal fitting and the frame fixing part of the frame side joint metal fitting may be formed integrally with the base part of the joint side joint metal fitting and the frame side joint metal fitting, or those formed by separate members may be screwed. It may be attached by wearing it. In addition, only through holes are formed in the bases of the joint side joint bracket and the frame side joint bracket, and the joint side joint bracket, the joint body, and the frame side joint bracket are used by using fixing screws as the fitting convex portion and the frame fixing portion. And the frame member can be fixed.
When the size of the frame member is large, the number of fitting convex portions of the joint-side fitting and the frame fixing portion of the frame-side fitting can be increased to two or more. Thereby, rotation does not generate | occur | produce between a joint main body, a joint side joining metal fitting, a frame side joining metal fitting, and a frame member, and it can fix more firmly.
The protrusions or recess locking portions formed on the side portions of the joint side joint bracket and the frame side joint bracket may be any shape that can be slidably locked to each other. It can be formed in an arc shape, a triangular shape, a rectangular shape, or the like.

According to a second aspect of the present invention, there is provided the joint according to the first aspect, wherein the joint side joint fitting is formed perpendicularly to the base portion and penetrates the fitting convex portion. It has the structure provided with the fixed through-hole.
With this configuration, in addition to the operation of the first aspect, the following operation is provided.
(1) Since a joint fixing through-hole penetrating the fitting convex portion perpendicular to the base of the joint-side joint fitting is drilled, fixing bolts are attached to the joint member insertion hole and the joint fixing through-hole of the joint body. The joint body and the joint-side joint fitting can be detachably fixed by screwing with a nut disposed on the surface side of the joint body facing the joint-side joint fitting or at the back of the joint member insertion hole. it can.
Here, a counterbore part is formed on the base side of the joint fixing through hole. Thereby, the head or nut of the fixing bolt does not protrude from the surface of the base, and the joint-side fitting and the frame-side fitting can be locked. In the case where the joint side joint fittings are respectively disposed on the opposing surfaces of the joint body, the two joint side joint fittings can be fixed with a single bolt.

The joint according to claim 3 of the present invention is the joint according to claim 2, wherein the joint main body is formed so as to be continuous with the center of the joint member insertion hole. It has the structure provided with.
With this configuration, in addition to the operation of the second aspect, the following operation is provided.
(1) Since the joint female thread portion is formed in the center of the joint member insertion hole of the joint body, the joint male thread is inserted through the joint fixing through hole of the joint-side joint fitting to join the joint body. The joint body and the joint side fitting can be securely fixed by being screwed onto the female thread portion.
Here, as a male screw for joining which fixes a joint main part and a joint side joining metal fitting, the countersunk screw which can be easily attached or removed with a driver is used suitably.

According to a fourth aspect of the present invention, there is provided the joint according to any one of the first to third aspects, wherein the frame-side joint fitting is formed on an outer periphery of the frame fixing portion. It has the structure provided with the external thread part.
With this configuration, in addition to the operation of any one of claims 1 to 3, the following operation is provided.
(1) Since the external thread portion as a buffer is formed on the outer periphery of the frame fixing portion of the frame side joining metal fitting, the frame fixing portion is inserted into the joining member fixing hole drilled in the frame member, and the outer periphery of the frame fixing portion When the frame is fixed by an adhesive, the bonding is strengthened by the anchor effect, and the frame fixing part can be prevented from coming off.
Here, when the frame fixing part is formed of a member different from the base part of the frame side fitting, a female screw is formed on the base part, and a bolt shaft having a male screw part formed on the outer periphery is screwed and fixed.

According to a fifth aspect of the present invention, there is provided the connector according to any one of the first to third aspects, wherein the frame-side joint metal fitting is drilled perpendicularly to the base portion. The frame fixing through-hole penetrating the frame fixing portion is provided.
With this configuration, in addition to the operation of any one of claims 1 to 3, the following operation is provided.
(1) Since a frame fixing through-hole penetrating the frame fixing portion perpendicularly to the base of the frame-side joining metal fitting is drilled, a bolt or a countersunk screw is inserted through the frame fixing through-hole, and the joining member of the frame member It can be securely fixed by being screwed into a female screw portion previously formed in the fixing hole.
Here, in particular, when the frame member is made of wood, the frame-side joining bracket and the frame member can be fixed using wood screws without previously forming a female thread portion in the frame member.
In addition, a counterbore part is formed on the base side of the frame fixing through hole so that the heads of the bolts and screws do not protrude so as not to prevent the joint side joint fitting and the frame side joint fitting from being locked.

A connector according to claim 6 of the present invention is the connector according to any one of claims 1 to 5, comprising: a. The protrusion locking portion of the joint-side joint fitting or the frame-side joint fitting has a protrusion formed on at least two opposite sides; b. The concave locking portion of the joint-side joint fitting or the frame-side joint fitting can slide on the concave opening into which the convex locking portion is inserted and the convex portion of the convex locking portion. And a contact portion that is formed to face the concave opening and is in contact with the end surface of the protrusion locking portion.
With this configuration, in addition to the operation of any one of claims 1 to 5, the following operation is provided.
(1) The protrusion locking portion of the joint-side fitting or frame-side fitting has at least two protruding ridges formed on opposite sides, and the concave locking of the joint-side fitting or frame-side fitting is performed. Are formed so as to face the concave opening, the concave opening on which the convex locking part is inserted, the concaves on both sides that slidably lock the convex locking part of the convex locking part, and the concave opening. Since it has an abutting portion that abuts against the end face of the convex locking portion, the convex locking portion can be fitted while sliding from the concave opening of the concave locking portion. The strips can be locked and detachably joined, and the end surface of the convex strip locking part can be supported by the abutment part to prevent the stripping.
(2) Since the protrusion locking portion has protrusions formed on at least two opposite sides and is locked and joined to the recesses on both sides of the recess locking part, an external force is applied. However, no twist or rotation occurs at the joint, and the joint can be prevented from spreading.

  Here, when a protruding line part is formed on three sides of the protruding line locking part, and a recessed line part is also formed on the contact part of the recessed line locking part, the protruding line locking part and the recessed line locking part are Since it becomes a U-shape and is locked on three sides, it becomes a stronger joint and can reliably prevent twisting and rotation of the joint. Moreover, when forming a protruding item | line part and a concave item on three sides of a protruding item | line latching part and a concave item latching part, you may make a corner into circular arc shape and make it substantially U-shaped. Thereby, while forming a convex part and a concave part, the process of a corner can be made easy and the intensity | strength equivalent to a U-shape can be obtained.

The joint tool according to claim 7 of the present invention is the joint tool according to any one of claims 1 to 6, wherein the joint member insertion hole of the joint body and the joint side joint metal fitting are the joint tool. Each of the fitting protrusions has a configuration in which the cross-sectional shape is formed in a square shape.
With this configuration, in addition to the operation of any one of claims 1 to 6, the following operation is provided.
(1) The joint member insertion hole of the joint body and the cross-sectional shape of the fitting convex part of the joint side joint fitting are each formed in a square shape, thereby preventing rotation when the joint body and the joint side joint fitting are fixed. Since the fitting convex portion can be inserted into the joining member insertion hole by rotating the direction of the joint side joining bracket by 90 degrees, the projections and the concave strip locking portions of the joint side joining bracket and the frame side joining bracket can be The joining direction at the time of latching can be changed, and after assembling (during use), the direction in which the protruding line and the recessed line locking part do not come out can be selected and bonded.

The connector according to claim 8 of the present invention is the connector according to any one of claims 1 to 7, wherein the connector is any one of a substantially cube, a substantially sphere, a substantially column, and a substantially prism. An embedding insertion hole formed in a shape and embedded with the joint main body embedded therein, and the fitting convex portion of the joint-side joining metal fitting formed in the joint main joint metal fitting through the respective joint member insertion holes of the joint main body. It has the structure provided with the joining decorative body which has the joining member guide hole guided to the said joining member insertion hole of a joint main body.
With this configuration, in addition to the operation of any one of claims 1 to 7, the following operation is provided.
(1) Since the joint decorative body has the insertion hole for embedding in which the joint main body is inserted and embedded, and the joint member guide hole formed in communication with each joint member insertion hole of the joint main body, The outside of the joint body can be covered, and the fitting convex portion of the joint side joint fitting can be guided by the joint member guide hole to be surely inserted into the joint member insertion hole. Can be fixed.
(2) Since the joint body is embedded in the bonded decorative body, only the joint body can be made of metal, and the bonded decorative body can be made of wood. Can be secured.
(3) Since the joint body is embedded in the bonded decorative body, the bonded decorative body made of wood or synthetic resin can be easily colored or decorated, and the aesthetics can be improved by matching the color tone with the frame member. Can do.

Here, metal, wood, synthetic resin, composite synthetic resin, or the like can be used as the material of the bonded decorative body. If only the joint body is made of metal, the weight can be reduced. In addition, the combination of the shape of a joining decorative body and a joint main body can be selected arbitrarily.
The joint decorative body and the joint body are fixed by fixing a joint-side joint fitting to the joint body. Insert the fitting member from the joint member guide hole of the joint decorative body that does not attach the joint side joint fitting to the joint member insertion hole of the joint body, or insert the bolt and communicate with the joint member insertion hole. By screwing onto the joint female thread portion, the joint decorative body and the joint body can be securely fixed and integrated.

According to a ninth aspect of the present invention, there is provided the frame member joint structure according to any one of the first to seventh aspects, wherein the fitting body is a fitting body and the joint member insertion hole of the joint body. The joint-side joint fitting of the joint tool according to any one of claims 1 to 7, wherein the joint convex portion is inserted and fixed, the frame member, and the top end surface of the frame member parallel to the longitudinal direction. 8. A joint member fixing hole formed in a hole, and a frame side joint fitting for a joint tool according to claim 1, wherein the frame fixing portion is fixed to the joint member fixing hole. The ridge or groove locking portion of the joint-side fitting and the groove or protrusion locking portion of the frame-side fitting are detachably locked to join the joint body and the frame member. It has the composition which is.
This configuration has the following effects.
(1) The fitting convex part of the joint side fitting is inserted and fixed in the joint member insertion hole of the joint main body, and the frame side fitting is inserted into the joint member fixing hole drilled in the top surface of the frame member in parallel with the longitudinal direction. The frame fixing part of the joint side is fixed, and the projection or recess locking part of the joint side joint fitting and the recess or projection locking part of the frame side joint fitting are fitted and locked, so that the joint body The frame member can be a rigid joint in which the frame member is intimately joined via a joint tool, and can be easily attached and detached.
(2) Since the joint body and the frame member are securely bonded firmly by locking the joint-side joint bracket and the frame-side joint bracket, which have high mechanical strength, by locking the joint main body and the frame member. It is possible to improve resistance to bending, tension, compression, shearing, and the like.
(3) When the protrusions and recesses are formed on the three sides of the protrusions and recesses of the joint-side joint bracket and frame-side joint bracket, and the joint-side joint bracket and the frame-side joint bracket are joined, It is possible to improve the bonding force of the bonding portion, and it is possible to firmly bond even a frame member having a large bonding area, which can cope with various designs.
(4) When disassembling the joint body and frame member, the joint body and frame member can be reused effectively because the joint part can be released simply by sliding in the opposite direction to the joint, saving resources. Excellent in properties.

  Here, when the groove is formed on the side surface of the frame member in parallel with the longitudinal direction, a plate member can be fitted into the groove and the frame member can be attached so as to surround the outer periphery of the plate member. Thereby, the intensity | strength of a structure can be improved using a board | plate material as a baseplate or a side board, and a structure can be used for multiple purposes using it as a shelf board. Moreover, when the notch part parallel to a longitudinal direction is formed in the corner | angular part of a frame member, a board | plate material can be mounted and it can be used as a detachable shelf board, and the functionality as a structure improves. be able to.

The frame member joint structure according to claim 10 of the present invention is the frame member joint structure according to claim 9, wherein the frame member joint structure is embedded in the insertion hole for embedding the joint cosmetic body according to claim 8. The joint main body of the connector according to any one of claims 1 to 7 is embedded, and the joint member guide hole of the joint cosmetic body and the joint member insertion hole of the joint main body of claim 1 to 7. It has the structure by which the fitting convex part of the joint side joining metal fitting of the connector described in any one of them is inserted and fixed.
With this configuration, in addition to the operation of the ninth aspect, the following operation is provided.
(1) Since the joint body is inserted and embedded in the joint decorative body, when only the joint body is made of metal, the joint body can be used as a core material of the joint cosmetic body such as wood, and the appearance is simple wooden. Although it is a skeleton, the joint strength as a structure can be improved.

The frame member joining structure according to claim 11 of the present invention is the frame member joining structure according to claim 9 or 10, wherein the frame member is formed on at least two opposite sides of the end face. It has the structure provided with the protruding item | line fixing | fixed part contact | abutted to the side part of the said base part of a frame side joining metal fitting.
With this configuration, in addition to the operation of the ninth or tenth aspect, the following operation is provided.
(1) Since the protrusion fixing portions are formed on at least two opposite sides of the frame surface of the frame member, the protrusion fixing portion is applied to the side of the base portion of the frame-side joint fitting attached to the frame surface of the frame member. The frame-side joining metal fitting can be prevented from rotating, and the frame-side joining fitting can be hidden by the ridge fixing portion so that the metal portion is not easily exposed to the outside.
Here, on the three sides of the end of the wooden side except for the opening for sliding and coupling the concave or convex locking portion of the joint-side mounting bracket to the convex or concave locking portion of the frame-side bonding bracket When the protrusion fixing portion is formed, it can be assembled so that the opening becomes a blind spot such as the bottom or the back side of the structure, and the frame-side joint fitting can be prevented from being exposed in appearance.

The frame member joining structure according to claim 12 of the present invention is the frame member joining structure according to claim 11, wherein the frame member is longer than the thickness of the base portion of the frame-side joining metal fitting. It has the structure provided with the protruding item | line fixing | fixed part.
With this configuration, in addition to the operation of the eleventh aspect, the following operation is provided.
(1) Since a protrusion fixing portion longer than the thickness of the base portion of the frame-side joining metal fitting is formed on the end surface of the frame member, the joint-side joining fitting is not attached to the protrusion or recess engaging portion of the frame-side joining fitting. When the concave line or the convex line latching part is slid and coupled, firm fixation by the wedge effect can be performed.

Here, the step difference between the protrusion fixing portion and the base of the frame-side joining metal fitting is preferably 0.5 mm to 1.0 mm. As the step becomes smaller than 0.5 mm, a sufficient wedge effect cannot be obtained, and there is a tendency that the connection between the frame-side joint fitting and the joint-side joint fitting tends to come off. As the step becomes larger than 1.0 mm, the frame-side joint fitting And the joint-side fitting are difficult to fit, and it is difficult to assemble and disassemble them.
In addition, you may form a protruding item | line fixing | fixed part in a taper shape. In particular, when the opening side into which the joint-side fitting is inserted is formed low, the joint-side fitting is easy to insert, and can be tightly tightened and firmly joined.

As described above, according to the connector of the present invention, the following advantageous effects can be obtained.
According to invention of Claim 1, it has the following effects.
(1) Since the joint body having the joint body with the joint member insertion hole formed therein and the joint-side joint metal fitting with the projecting convex part projecting, the joint convex part of the joint side joint metal fitting is provided in the joint member insertion hole of the joint body. It is possible to provide a connector excellent in workability that can be inserted and fixed easily and can integrate the joint body and the joint-side joint metal fitting provided with the convex or concave locking portions.
(2) Since the frame side joint fitting has a concave or convex locking portion and a frame fixing portion, the projection of the joint side joint fitting is secured by fixing the frame fixing portion to the end surface of the frame member to be joined in advance. The groove or groove locking portion and the groove or protrusion locking portion of the frame side joint fitting can be latched, and the joint body and frame side joint fitting provided with the joint side joint fitting are provided. It is possible to provide a joint tool excellent in workability capable of joining the frame members.
(3) By drilling the joining member insertion holes on the same axis of the joint body or on the axes orthogonal to each other, any position can be selected from the three axes perpendicular to the joint body. Since joint-side fittings can be arranged at opposite positions or perpendicular directions across the body, multiple joint-side fittings can be fixed to one joint body, and multiple joint bodies and frame members can be attached. It is possible to provide a joining tool that can be detachably joined and combined, and can be formed into a frame, and has excellent workability and design flexibility.
(4) Since the joint-side fittings disposed and fixed on the joint body and the frame-side fittings disposed and fixed on the frame member are made of metal, the joint body and the frame member can be manufactured with high precision by machining. It is possible to provide a connector that can be firmly bonded, can be re-disassembled and reassembled, and can be used repeatedly and has excellent reliability and resource saving.
(5) As the assembly and disassembly can be done simply by sliding and fitting the protrusions or recess engaging portions formed on the joint side joint fitting and frame side joint fitting, respectively, the work is easy. It is possible to provide a connector with excellent assembly workability and reliability that can be firmly bonded without sticking.

According to invention of Claim 2, in addition to the effect of Claim 1, it has the following effects.
(1) Since a joint fixing through-hole penetrating the fitting convex portion perpendicular to the base of the joint-side joint fitting is drilled, fixing bolts are attached to the joint member insertion hole and the joint fixing through-hole of the joint body. By inserting and screwing the nut, it is possible to provide a connector excellent in assembling and disassembling workability capable of detachably fixing the joint body and the joint-side joint fitting.

According to invention of Claim 3, in addition to the effect of Claim 2, it has the following effects.
(1) Since the joint female thread portion is formed in communication with the joint member insertion hole of the joint body, the joint male thread portion is inserted through the joint fixing through hole of the joint side joint fitting, and the joint body female thread portion It is possible to provide a highly reliable joint that can be securely and firmly fixed to the joint body and the joint-side joint fitting by being screwed to each other.

According to invention of Claim 4, in addition to the effect of any one of Claims 1 thru | or 3, it has the following effects.
(1) Since the external thread portion is formed on the outer periphery of the frame fixing portion of the frame side joining metal fitting, the frame fixing portion is inserted into the joining member fixing hole formed in the frame member, and the outer periphery of the frame fixing portion is bonded to the adhesive. When it is fixed by, the joint is strengthened by the anchor effect, and it is possible to provide a connector with excellent reliability and durability that can prevent the frame fixing part from coming off.

According to invention of Claim 5, in addition to the effect of any one of Claims 1 thru | or 3, it has the following effects.
(1) Since a frame fixing through-hole penetrating the frame fixing portion perpendicularly to the base of the frame-side joining metal fitting is drilled, a bolt or a countersunk screw is inserted through the frame fixing through-hole, and the joining member of the frame member It is possible to provide a bonding tool excellent in certainty and workability that can be screwed and fixed to a female screw portion that is formed in advance in the fixing hole.

According to invention of Claim 6, in addition to the effect of any one of Claims 1 thru | or 5, it has the following effects.
(1) The protrusion locking portion of the joint-side fitting or frame-side fitting has at least two protruding ridges formed on opposite sides, and the concave locking of the joint-side fitting or frame-side fitting is performed. Are formed so as to face the concave opening, the concave opening on which the convex locking part is inserted, the concaves on both sides that slidably lock the convex locking part of the convex locking part, and the concave opening. Since it has an abutting portion that abuts on the end face of the convex locking portion, the convex locking portion can be fitted so as to slide from the concave opening of the concave locking portion. Provided is a joint tool excellent in certainty and workability capable of locking the concave strip portion and detachably joining it, and supporting the end surface of the convex strip latching portion by the abutting portion to prevent disconnection. be able to.
(2) Since the protrusion locking portion has protrusions formed on at least two opposite sides and is locked and joined to the recesses on both sides of the recess locking part, an external force is applied. In addition, it is possible to provide a connector with excellent reliability and durability that prevents the joint from being twisted or rotated and prevents the joint from spreading.

According to invention of Claim 7, in addition to the effect of any one of Claims 1 thru | or 6, it has the following effects.
(1) The joint member insertion hole of the joint body and the cross-sectional shape of the fitting convex part of the joint side joint fitting are each formed in a square shape, thereby preventing rotation when the joint body and the joint side joint fitting are fixed. Since the fitting convex portion can be inserted into the joining member insertion hole by rotating the direction of the joint side joining bracket by 90 degrees, the projections and the concave strip locking portions of the joint side joining bracket and the frame side joining bracket can be The sliding direction at the time of locking can be changed, and after assembly (when in use), the direction in which the protrusions and recess locking parts can be selected and joined can be selected for design flexibility and reliability An excellent connector can be provided.

According to invention of Claim 8, in addition to the effect of any one of Claims 1 thru | or 7, it has the following effects.
(1) Since the joint decorative body has the insertion hole for embedding in which the joint main body is inserted and embedded, and the joint member guide hole formed in communication with each joint member insertion hole of the joint main body, It can cover the outside of the joint body, and can guide the fitting convex part of the joint side joint fitting through the joint member guide hole so as to be surely inserted into the joint member insertion hole. It is possible to provide a connector with excellent assembly workability and reliability that can be reliably fixed.
(2) Since the joint body is embedded in the bonded decorative body, only the joint body can be made of metal, and the bonded decorative body can be made of wood. A highly reliable connector that can be ensured can be provided.
(3) Since the joint body is embedded in the bonded decorative body, the bonded decorative body made of wood or synthetic resin can be easily colored or decorated, and the aesthetics can be improved by matching the color tone with the frame member. However, it is possible to provide a connector having excellent decorativeness and functionality.

According to the frame member joining structure of the present invention, the following advantageous effects can be obtained.
According to invention of Claim 9, it has the following effects.
(1) The fitting convex part of the joint side fitting is inserted and fixed in the joint member insertion hole of the joint main body, and the frame side fitting is inserted into the joint member fixing hole drilled in the top surface of the frame member in parallel with the longitudinal direction. The frame fixing part of the joint side is fixed, and the protrusion or recess locking part of the joint side joint fitting and the recess or projection locking part of the frame side joining bracket are locked, so that the joint body and the frame member are It is possible to provide a frame member joining structure excellent in assembling workability, joining strength, and versatility that can be rigidly joined through a joint tool and can be easily attached and detached.
(2) Since the joint body and the frame member are securely bonded firmly by locking the joint-side joint bracket and the frame-side joint bracket, which have high mechanical strength, by locking the joint main body and the frame member. Thus, it is possible to provide a frame member bonding structure excellent in bonding strength and reliability that can improve resistance to bending, tension, compression, shearing, and the like.
(3) When the protrusions and recesses are formed on the three sides of the protrusions and recesses of the joint-side joint bracket and frame-side joint bracket, and the joint-side joint bracket and the frame-side joint bracket are joined, Provided is a frame member bonding structure that can improve the bonding force of the bonding portion, and can firmly bond even a frame member having a large bonding area, and can cope with various designs, and has excellent bonding strength and reliability. be able to.
(4) When disassembling the joint body and the frame member, it is possible to release the joint at the joint only by sliding in the opposite direction to the joint, so that the assembly work can be reused effectively. It is possible to provide a frame member joining structure that is excellent in performance, versatility, and resource saving.

According to the invention described in claim 10, in addition to the effect of claim 9, the following effect is obtained.
(1) Since the joint body is inserted and embedded in the joint decorative body, when only the joint body is made of metal, the joint body can be used as a core material of the joint cosmetic body such as wood, and the appearance is simple wooden. Although it is a framework, it is possible to provide a frame member bonding structure that can improve the bonding strength as a structure and has excellent bonding strength and reliability.

According to the eleventh aspect of the invention, in addition to the effect of the ninth or tenth aspect, the following effect is obtained.
(1) Since the protrusion fixing portions are formed on at least two opposite sides of the frame surface of the frame member, the protrusion fixing portion is applied to the side of the base portion of the frame-side joint fitting attached to the frame surface of the frame member. Construction that can prevent the rotation of the frame-side joint metal fittings and can prevent the frame side joint metal fittings from being exposed to the outside by concealing the frame-side joint metal fittings so that the aesthetic appearance can be improved. It is possible to provide a frame member joining structure that is excellent in performance.

According to invention of Claim 12, in addition to the effect of Claim 11, it has the following effects.
(1) Since the ridge fixing part higher than the thickness of the base part of the frame side joint metal fitting is formed on the end surface of the frame member, the joint side joint metal fitting is connected to the ridge or the concave line locking part of the frame side joint metal fitting. It is possible to provide a joint structure for a frame member excellent in joint strength and durability that can be firmly fixed by a wedge effect when the concave stripes or the convex stripe engaging portions are slid and coupled.

(Embodiment 1)
A connector according to Embodiment 1 of the present invention will be described below with reference to the drawings.
FIG. 1A is a perspective view of the joint body of the connector according to Embodiment 1, and FIG. 1B is a cross-sectional side view of the main part of the joint body of the connector according to Embodiment 1. FIG. FIG. 2B is a perspective view of the joint-side joint fitting of the joint according to the first embodiment, FIG. 2B is a cross-sectional plan view of the main part of the joint-side joint fitting of the joint according to the first embodiment, and FIG. It is a principal part cross-section side view of the joint side joining metal fitting of the connector in Embodiment 1, Fig.3 (a) is a perspective view of the frame side joining metal fitting of Embodiment 1, and FIG.3 (b) is Embodiment. FIG. 3C is a cross-sectional plan view of the main part of the frame-side joint fitting of the joint according to the first embodiment.

In FIG. 1, 1 a is a joint body of the connector in Embodiment 1 formed in a substantially cubic shape with a metal such as aluminum or stainless steel, wood, synthetic resin, etc. 2 is orthogonal to the center of each side surface of the joint body 1. A joining member insertion hole 3 having a square cross-section drilled on the axis to be connected is a female thread portion for joining formed continuously at the center of the joining member insertion hole 2.
In FIG. 2, 5a is a joint-side joint fitting of the joint according to the first embodiment, 6 is a base portion of a joint-side joint fitting 5a formed of a metal such as aluminum or stainless steel , and 7 is projected from the back surface of the base portion 6. A fitting convex portion to be inserted into the joining member insertion hole 2 of the joint body 1 a, 7 a is a joint fixing through hole that is formed perpendicular to the base portion 6 and penetrates the fitting convex portion 7, and 7 b is on the surface of the base portion 6. The formed counterbore part, 8 is a protrusion locking part formed in a substantially U shape on the outer periphery of the side part of the base part 6, and 8a is a tapered protruding line part of the protrusion locking part 8.
In FIG. 3, reference numeral 10 a denotes a frame-side joint fitting of the joint according to the first embodiment, 11 denotes a base portion of the frame-side joint fitting 10 a formed of a metal such as aluminum or stainless steel , and 12 is fixed to the center of the back surface of the base portion 11. A frame fixing portion formed with a male screw portion on the outer periphery to be inserted and fixed in the joining member fixing hole of the frame member, 13 is a concave locking portion formed in a substantially U shape on the outer periphery of the side portion of the base portion 11, 13a is a taper-shaped concave strip portion of the concave strip locking portion 13, 13a 'is an abutting portion, and 14 is a concave opening for fitting the convex strip locking portion 8 of the joint-side joint fitting 5a.
Since the protrusion locking part 8 of the joint side joining metal fitting 5a and the concave line locking part 13 of the frame side joining metal fitting 10a are formed in a substantially U shape, respectively, and have the taper-shaped convex stripe part 8a and the groove forming part 13a. Then, by inserting the protrusion locking part 8 from the concave opening 14 of the frame-side joining metal fitting 10a, the protrusion 8a and the groove 13a are locked and both are coupled.

Next, modifications of the joint-side joint fitting and the frame-side joint fitting of the joint according to Embodiment 1 will be described. In addition, the same code | symbol is attached | subjected to the thing similar to Embodiment 1, and description is abbreviate | omitted.
FIG. 4A is a perspective view showing a modification of the joint side joint fitting of the joint according to the first embodiment, and FIG. 4B shows a modification of the joint side joint fitting of the joint according to the first embodiment. FIG. 4C is a cross-sectional side view of the main part showing a modification of the joint-side joint fitting of the joint according to the first embodiment.
4 differs from the joint-side joint fitting of the joint according to the first embodiment in that the protrusion locking portions 8 of the joint-side joint fitting 5b are U-shaped (convex on three sides of the rectangular base 6). The strip 8b is formed in a U-shape, and the convex strip 8b is formed in a stepped shape.

FIG. 5A is a perspective view showing a modification of the frame-side joint fitting of the joint according to the first embodiment, and FIG. 5B is a modification of the frame-side joint fitting of the joint according to the first embodiment. FIG. 5C is a cross-sectional side view of the main part showing a modification of the frame-side joint metal fitting of Embodiment 1 according to the first embodiment.
The modification of FIG. 5 is different from the frame-side joint metal fitting of the first embodiment in that the concave-line locking portion 11 of the frame-side joint metal fitting 10b is U-shaped (recessed on three sides of the rectangular base 11). The strip 13b is formed in a U-shape, and the concave strip 13b is formed in a step shape.
The joint-side fitting 5b of FIG. 4 and the frame-side joining fitting 10b of FIG. 5 can be used in combination, and both can be coupled by fitting the convex portion 8b and the concave portion 13b.

A frame member bonding structure using the bonding tool according to Embodiment 1 configured as described above will be described with reference to the drawings.
First, the attachment method of the joint main body and joint side joining metal fitting of a connector is demonstrated.
FIG. 6 is a perspective view illustrating a method of attaching the joint body and the joint-side joint fitting of the joint according to the first embodiment.
First, the fitting convex portion 7 of the joint side fitting 5a is fitted into the joining member insertion hole 2 of the joint body 1a and temporarily fixed, and the joining male screw 15 is inserted from the joint fixing through hole 7a to be connected to the joint body 1a. It is screwed and fixed to the female thread portion 3 for joining (see FIG. 1B). In the same manner, the joint side fitting 5a is fixed to each surface of the joint body 1a to which the frame member is attached.

Next, an attachment method for attaching the frame side joining metal fitting of the joining tool to the frame member will be described.
FIG. 7 is a perspective view showing a method of attaching the frame-side joint metal fitting and the frame member of the joint according to the first embodiment.
Reference numeral 20 denotes a wooden frame member used as a pillar or beam of the structure, and reference numeral 21 denotes a joining member fixed through which the frame fixing part 12 of the frame-side joint fitting 10a is inserted so as to be drilled perpendicularly to the wood surface 20a of the frame member 20. The holes 22 are convex fixing portions that are formed on two opposite sides of the wood face 20a of the frame member 20 and come into contact with the side portion 11a of the base portion 11 of the frame side fitting 10a.
The joining member fixing hole 21 was drilled with a drill or the like, and formed thicker than the outer diameter of the frame fixing portion 12 of the frame side fitting 10a and deeper than the entire length of the frame fixing portion 12.
The joining member fixing hole 21 of the frame member 20 is filled with water-like epoxy adhesive or the like, and the frame fixing portion 12 of the frame side joining metal fitting 10a is inserted to adhere and fix the frame side joining metal fitting 10a and the frame member 21. The protrusion fixing part 22 can prevent the frame side joint fitting 10a from rotating. Moreover, the protruding item | line fixing | fixed part 22 was formed longer than the thickness of the base 11 of the frame side joining metal fitting 10a. As a result, when the ridge locking portion 8 of the joint side fitting 5a is fitted into the groove locking portion 13 of the frame side fitting 10a and coupled, a firm fixation by the wedge effect can be performed.

FIG. 8 is an exploded perspective view showing a joining structure of a frame member using the joining tool in the first embodiment, and FIG. 9 is an overall perspective view showing a joining structure of the frame member using the joining tool in the first embodiment. FIG. 10 is a cross-sectional side view of an essential part showing a joining structure of a frame member using the joining tool in the first embodiment .
In FIG. 10, 23 is an adhesive filled in the joining member fixing hole 21 of the frame member 20 , and 25 is flush with the side surface of the joint body 1a in the joining member insertion hole 2 of the joint body 1a to which the frame member 20 is not joined. It is a fitting lid that is detachably fitted.
In FIG. 8, the joint side joining metal fitting 5a attached to the joint main body 1a is detachably joined by fitting into the concave opening 14 of the frame side joining metal fitting 10a attached to the frame member 20 . 9 and 10 can be obtained. In addition, the fitting lid 25 allows the joining member insertion hole 2 to be invisible from the outside, and can be easily removed and attached to the joint-side joining fitting 5a at any time, and the frame member 20 is added to the design change. Can respond.
In FIG. 8 to FIG. 10, the protrusion locking part 8 of the joint side fitting 5a and the concave locking part 13 of the frame side fitting 10a are formed in a substantially U shape, so that they are firmly fixed on three sides. It is possible to improve resistance to bending, tension, compression, shearing, etc. occurring at the joint.
Moreover, since the protruding item | line fixing | fixed part 22 is formed in the two opposite sides of the wooden end surface 20a of the frame member 20, and contact | abuts to the side part 11a of the base 11 of the frame side joining metal fitting 10a, rotation of the frame member 20 can be prevented. When the ridge fixing part 22 is formed to be thicker than the thickness of the base 11 of the frame-side joining metal fitting 10a, the ridge-engaging part 8 of the joint-side joining metal fitting 5a is engaged with the concave ridge engaging part 13 of the frame-side joining metal fitting 10a. When stopping, the binding can be strengthened by the wedge effect.
At the time of disassembly, the frame side fitting 10a has the concave opening 14, so that the projection of the joint side fitting 5a can be easily made from the groove locking portion 13 of the frame side fitting 10a only by sliding in the opposite direction to that during assembly. The strip locking portion 8 can be extracted.
Instead of the fitting lid 25, the joining member insertion hole 2 may be closed by attaching a decorative screw to the joining female thread portion 3 of the joint body 1.

As described above, the connector according to Embodiment 1 has the following effects.
(1) Since the joint body 1a having the joint member insertion hole 2 formed therein and the joint side joint metal fitting 5a having the fitting projection 7 projecting are provided, the joint side joint metal fitting is provided in the joint member insertion hole 2 of the joint body 1a. The fitting convex part 5a of 5a can be inserted and temporarily fixed easily, and the joint side joining metal fitting 5a provided with the joint main body 1a and the protrusion locking part 8 can be handled integrally .
(2) Since the frame-side joining metal fitting 10a has the frame fixing part 12 and the groove locking part 13, the frame fixing part 12 is fixed in advance to the joining member fixing hole 21 of the front end 20a of the frame member 20 to be joined. Thus, the convex locking portion 8 of the joint-side fitting 5a and the concave locking portion 13 of the frame-side fitting 10a can be fitted and locked, and the joint main body 1a provided with the joint-side fitting 5a. The frame member 20 provided with the frame-side joining metal fitting 10a can be joined.
(3) By drilling the joining member insertion hole 2 on the same axis of the joint body 1a or on the axes orthogonal to each other, it is possible to select any position among the three axes perpendicular to the joint body 1a. The joint-side fittings 5a can be arranged in positions opposite to each other across the joint body 1a or in the orthogonal direction. Therefore, a plurality of joint-side fittings 5a can be fixed to one joint body 1a. The joint body 1a and the frame member 20 can be detachably joined and combined , and structures of various shapes can be formed.
(4) Since the joint side fitting 5a disposed and fixed on the joint body 1a and the frame side fitting 10a disposed and fixed on the frame member 20 are made of metal, the joint body can be manufactured with high precision by machining. 1a and the frame member 20 can be tightly coupled, can be re-disassembled and reassembled, and can be used repeatedly.
(5) Since the protruding and engaging portions 8 and 13 formed on the joint-side fitting 5a and the frame-side fitting 10a are slid and fitted together, assembly and disassembly can be easily performed. Thus, there is no rattling after assembly, and strong bonding can be performed.
(6) A joint fixing through hole 7a penetrating the fitting convex portion 7 perpendicular to the base portion 6 of the joint side fitting 5a is drilled and communicated with the joining member insertion hole 2 of the joint main body 1a so as to be joined. 3 is formed, the male screw 15 for joining is inserted from the joint fixing through hole 7a of the joint side fitting 5a, and is screwed to the female screw part 3 for joining of the joint main body 1a to join the joint main body 1a to the joint side. The metal fitting 5a can be reliably fixed.
(7) Since the male screw part is formed on the outer periphery of the frame fixing part 12 of the frame side joining metal fitting 10a, the frame fixing part 12 is inserted into the joining member fixing hole 21 formed in the frame member 20, and the frame fixing part When the outer periphery of 12 is fixed by the adhesive 23, the bonding is strengthened by the anchor effect of the male screw portion, and the frame fixing portion 12 can be prevented from coming off.
(8) The ridge locking portion 8 of the joint-side joint fitting 5a has a ridge portion 8a formed in a substantially U-shape or U-shape, and the concave-line engagement portion 13 of the frame-side joint fitting 10a is convex. Since it has the concave strip part 13a formed in the substantially U shape or the U-shape provided with the concave opening part 14 in which the strip locking part 8 is inserted, the convex strip locking part 8 of the concave strip locking part 13 is provided. It can be inserted while sliding from the concave opening 14, and can be detachably joined by locking the convex strips 8a and the concave strips 13a on both sides, and the convex strip locking portion by the upper part of the concave strip 13a. The upper end face of 8a can be supported to prevent it from coming off.
(9) Since the ridge locking portion 8 has a ridge portion 8a formed in a substantially U shape or U shape, and is locked and joined to the groove portion 13a of the groove locking portion 13. Even when an external force is applied, twisting or rotation does not occur at the joint, and the joint can be prevented from spreading.
(10) The joint body 1a and the joint-side fitting 5a are fixed by the cross-sectional shapes of the joint member insertion hole 2 of the joint body 1a and the fitting convex portion 7 of the joint-side fitting 5a being respectively square. Sometimes the rotation can be prevented and the direction of the joint side fitting 5a can be rotated by 90 degrees so that the fitting convex portion 7 can be inserted into the joining member insertion hole 2, so that the joint side fitting 5a and the frame side fitting The sliding direction at the time of latching the protruding line locking part 8 and the concave line locking part 13 of 10a can be changed, and the protruding line locking part 8 and the concave line locking part after assembly (during use) The direction in which 13 does not come off can be selected and bonded.
(11) By arranging the convex side of the joint-side joining metal fitting 5a to be on the upper side (see FIG. 8), it can be held simply by fitting the frame-side joining metal fitting 10a, and the assembly workability is excellent.
(12) Since the joining member insertion hole 2a and the fitting convex portion 7 are formed in a polygonal shape, the direction of the joint side fitting 5a can be freely changed during the joining operation.

The joint structure using the joint tool in Embodiment 1 has the following effects.
(1) Fixing of a joining member which is fixed by inserting and fixing the fitting convex portion 7 of the joint-side joining fitting 5a into the joining member insertion hole 2 of the joint body 1a, and being drilled in the wood surface 20a of the frame member 1a in parallel with the longitudinal direction. The frame fixing part 12 of the frame side joining metal fitting 10a is fixed to the hole 21 by the adhesive 23, and the convex line locking part 8 of the joint side joining metal fitting 5a and the concave line locking part 13 of the frame side joining metal fitting 10a are fitted. By doing so, the joint body 1a and the frame member 20 can be rigidly joined together via the joint side joint fitting 5a and the frame side joint fitting 10a, and can be easily attached and detached.
(2) The joint body 1a and the frame member 20 are securely and firmly secured by engaging the joint-side joint metal fitting 5a and the frame-side joint metal fitting 10a with high mechanical strength. Therefore, resistance to bending, tension, compression, shearing, etc. occurring at the joint can be improved.
(3) The protruding portion 8a and the recessed portion 13a are formed on the three sides of the protruding portion locking portion 8 and the recessed portion locking portion 13 of the joint side connecting bracket 5a and the frame side connecting bracket 10a. Since the frame-side joining metal fitting 10a is in contact with a wide joining area, the joining force of the joining portion can be improved, and even the frame member 20 having a large cross-sectional area can be joined firmly, so that various designs can be supported. Can do.
(4) When disassembling the joint body 1a and the frame member 20, the joint body 1a and the frame member 20 can be effectively reused because the joint portion can be released simply by sliding in the opposite direction to the joint. Can be resource-saving.
(5) Since the ridge fixing portions 22 are formed on the two opposite sides of the frame end surface 20a of the frame member 1a, the side portion 11a of the base portion 11 of the frame side fitting 10a attached to the frame end surface 20a of the frame member 1a. The protrusion fixing part 22 can be brought into contact with the frame, the frame side joining metal fitting 10a can be prevented from rotating, and the frame side joining metal fitting 10a is hidden by the protrusion fixing part 22 so that the metal part is hardly exposed to the outside. Can improve aesthetics.
(6) When the ridge fixing portion 22 is formed on the wood end surface 20a of the frame member 20 higher than the thickness of the base portion 11 of the frame side joint fitting 10a, the joint side joint is joined to the groove locking portion 13 of the frame side joint fitting 10a. When the ridge locking portion 8 of the metal fitting 5a is slid and coupled, it can be firmly fixed by the wedge effect.

(Embodiment 2)
A connector according to Embodiment 2 of the present invention will be described below with reference to the drawings. In addition, the same code | symbol is attached | subjected to the thing similar to Embodiment 1, and description is abbreviate | omitted.
11A is a perspective view of the joint body of the connector in the second embodiment, FIG. 11B is a cross-sectional plan view of the main part of the joint body of the connector in the second embodiment, and FIG. FIG. 12 is a cross-sectional side view of the main part of the joint body of the joint in Embodiment 2, FIG. 12 is a perspective view of the joint body of the joint in Embodiment 2, and FIG. 13 is the joint body of the joint in Embodiment 2 . It is a principal part cross-section side view which shows the attachment state of a joining decorative body and a joint side joining metal fitting .
In FIG. 11, the joint main body of the connector in the second embodiment is different from the first embodiment in that the joint main body 1b is formed in a substantially cylindrical shape, and the joining member insertion hole 2a formed in the upper surface of the joint main body 1b. Is formed deeper than the other joining member insertion hole 2b formed in the outer periphery and the bottom surface .
12 and 13, reference numeral 30a denotes a joint cosmetic body of the joint tool according to the second embodiment formed in a substantially cubic shape with wood, synthetic resin, etc., and 31a is formed perpendicularly to one surface of the joint cosmetic body 30a and is joint body. 1b is a circular insertion hole that is embedded and embedded, and 32 is a connection member guide formed on each surface so as to communicate with each connection member insertion hole 2 of the joint body 1b embedded in the insertion hole 31a. It is a hole.

In FIG. 13, first, the joint body 1b is embedded in the embedded insertion hole 31a of the bonded decorative body 30a. At this time, since the joining member insertion hole 2a is formed deeper than the joining member insertion hole 2b by the thickness of the joined decorative body 30a, the depth of the joining member insertion hole 2a is equal to the joining member insertion hole 2b and the joining member guide hole. It is equal to the sum of the depth of 32, and the joint side joint fitting 5a of the joint in Embodiment 1 can be used in common. The fitting convex portion 7 of the joint side fitting 5a is directly inserted into the joining member insertion hole 2a. The fitting projection 7 of the joint-side joint fitting 5a can be inserted into the joint member insertion hole 2b from the joint member guide hole 32 of the joint decorative body 30a and guided.
After the joint body 1b is inserted and embedded in the embedded insertion hole 31a of the bonded decorative body 30a in this way, the bonded decorative body 30a can be handled in the same manner as the joint main body 1a in the first embodiment, and the frame side bonded The joining with the frame member 20 to which the metal fitting 10a is attached can be performed in the same procedure as in the first embodiment.
FIG. 14 is a perspective view showing a modified example of the joint decorative body of the connector in the second embodiment.
The modification of FIG. 14 differs from the joint decorative body of the joint tool in Embodiment 2 in that the embedded insertion hole 31b of the joint cosmetic body 30b is formed in a rectangular shape, the joint member guide hole 32a, and the joint The member insertion holes 2a and 2b are formed in a hexagonal shape. Thereby, it can use in combination with the joint main body 1a of the connector in Embodiment 1 formed in the substantially cube. Thereby, the frame side joining metal fitting 10a can be joined not only from the top and bottom and the left and right directions but also from the oblique direction.

As described above, according to the connector in the second embodiment, in addition to the operations obtained in the first embodiment, the following operations are provided.
(1) The joint decorative body 30a has a burying insertion hole 31a into which the joint body 1b is inserted and embedded, and a joint member guide hole 32 formed in communication with each joint member insertion hole 2b of the joint body 1b. Therefore, the joint decorative body 30a can cover the outside of the joint body 1b, and the joint member guide hole 32 guides the fitting convex portion 7 of the joint-side joint metal fitting 5a so as to be surely inserted into the joint member insertion hole 2b. The joint side fitting 5a can be fixed to the joint body 1b.
(2) Since the joint main body 1b is embedded in the bonded decorative body 30a, only the joint main body 1b can be made of metal, and the bonded decorative body 30a can be made of wood. The bonding strength can be ensured.
(3) Since the joint body 1b is embedded in the bonded decorative body 30a, the bonded decorative body 30a made of wood or synthetic resin can be easily colored or decorated, and the beauty of the color tone with the frame member 20 is adjusted. Can be improved.

According to the joint structure using the joint tool in the second embodiment, in addition to the action obtained in the first embodiment, the following action is provided.
(1) Since the joint main body 1b is fitted and embedded in the bonded decorative body 30a, when only the joint main body 1b is made of metal, the joint main body 1b can be used as a core material of the bonded decorative body 30a such as wood. Although it is a simple frame of wood, it can improve the joint strength as a structure.

  In the present invention, a frame member formed of wood, laminated wood, metal, plastic or the like can be removably joined without using a special tool or the like. It can respond to changes, etc., can provide a connector with excellent versatility and design flexibility, and can easily and firmly join frame members to each other. Thinned wood can be used as a frame member, which is excellent in resource saving, can be easily attached with shelf boards and side plates to improve rigidity, such as interior equipment such as bookshelves, desks, outdoor equipment, gardening equipment, etc. In addition, it is possible to provide a frame member joining structure that can be suitably used for playground equipment, learning materials, and the like.

(A) Perspective view of joint body of connector in embodiment 1 (b) Cross-sectional side view of main part of joint body of connector in embodiment 1 (A) Perspective view of joint-side joint fitting of joint in embodiment 1 (b) Main part sectional plan view of joint-side joint of joint in embodiment 1 (c) Joint of embodiment 1 Cross-sectional side view of the principal part of the joint side fitting (A) Perspective view of frame-side joint fitting of connector in embodiment 1 (b) Cross-sectional plan view of the main part of the frame-side joint fitting of embodiment 1 (c) is the joint in embodiment 1. Cross-sectional side view of the main part of the frame side fitting (A) The perspective view which shows the modification of the joint side joining metal fitting of the connector in Embodiment 1 (b) The principal part cross-section top view which shows the modification of the joint side joining metal fitting of Embodiment 1 (c) Cross-sectional side view of relevant parts showing a modification of the joint-side joint fitting of the joint according to Embodiment 1. (A) Perspective view showing a modification of the frame-side joint fitting of the joint in Embodiment 1 (b) Main part sectional plan view showing a modification of the frame-side joint fitting of the joint in Embodiment 1 (c) Cross-sectional side view of the main part showing a modification of the frame-side joint metal fitting of the joint in Embodiment 1. The perspective view which shows the attachment method of the joint main body and joint side metal fitting of the connector in Embodiment 1. The perspective view which shows the attachment method of the frame side joining metal fitting and frame member of the connector in Embodiment 1. FIG. The disassembled perspective view which shows the joining structure of the frame member using the connector in Embodiment 1. FIG. Whole perspective view which shows the joining structure of the frame member using the connector in Embodiment 1. FIG. Cross-sectional side view of a main part showing a joining structure of a frame member using the joining tool in the first embodiment (A) Perspective view of joint body of connector in embodiment 2 (b) Cross-sectional plan view of main part of joint body of connector in embodiment 2 (c) Essential part of joint body of connector in embodiment 2 Sectional side view The perspective view of the joint decorative body of the connector in Embodiment 2. The principal part cross-section side view which shows the attachment state of the joint main body of the connector in Embodiment 2 , a joining decorative body, and a joint side joining metal fitting The perspective view which shows the modification of the joining decorative body of the connector in Embodiment 2. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a, 1b Joint main body 2, 2a, 2b Joining member insertion hole 3 Joining female screw part 5a, 5b Joint side metal fitting 6 Base part 7 Fitting convex part 7a Joint fixing through-hole 7b Counterbore part 8 Convex locking part 8a, 8b Convex section 10a, 10b Frame side fitting 11 Base 12 Frame fixing section 13 Concave engaging section 13a, 13b Concave section 13a 'Abutting section 14 Concave opening 20 Frame member 20a End face 21 Joint member fixing hole 22 Convex Strip fixing part 23 Adhesive 25 Fitting lid 30a, 30b Bonded decorative body 31a, 31b Insertion hole 32, 32a Bonding member guide hole

Claims (12)

a. A joint body having two or more joining member insertion holes formed in any one of a substantially cubic shape, a substantially spherical shape, a substantially cylindrical shape, and a substantially prismatic shape, which are formed on the same axis or on axes orthogonal to each other;
b. A base portion formed in a substantially flat plate shape, a ridge or a groove engaging portion formed on a side portion of the base portion, and protruded from the back surface of the base portion and inserted into the joint member insertion hole of the joint body. A joint-side fitting having a fitting protrusion,
c. A base formed in a substantially flat plate shape, a groove or protrusion locking portion formed on a side portion of the base and locked to the protrusion or groove locking portion of the joint-side joint fitting; and the base A frame fixing part fixed to the center of the back surface of the frame side joining bracket,
A connector characterized by comprising:   The joint according to claim 1, wherein the joint-side fitting includes a joint fixing through-hole that is formed perpendicularly to the base and penetrates the fitting protrusion.   The joint according to claim 2, wherein the joint main body includes a female thread portion for joining which is continuously formed at the center of the joint member insertion hole.   The said frame side joining metal fitting is provided with the external thread part formed in the outer periphery of the said frame fixing | fixed part, The joining tool of any one of Claims 1 thru | or 3 characterized by the above-mentioned.   The said frame side joining metal fitting is provided with the flame | frame fixing through-hole drilled orthogonally to the said base and penetrating the said frame fixing | fixed part, The inside of any one of Claim 1 thru | or 3 characterized by the above-mentioned. Joiner. a. The protrusion locking portion of the joint-side fitting or the frame-side fitting has at least two protrusions formed on opposite sides;
b. The concave locking portion of the joint-side joint fitting or the frame-side joint fitting can slide on the concave opening into which the convex locking portion is inserted and the convex portion of the convex locking portion. Concave contact portions on both sides that are locked to the contact portion, and a contact portion that is formed to face the concave opening portion and that contacts the end surface of the convex lock engagement portion,
The connector according to any one of claims 1 to 5, further comprising:   7. The cross-sectional shape of each of the joint member insertion hole of the joint body and the fitting convex portion of the joint-side joint metal fitting is formed in a square shape, respectively. The described connector.   An embedment insertion hole formed in any one of a substantially cubic shape, a substantially sphere shape, a substantially cylindrical shape, and a substantially prismatic shape, and communicated with each of the joint member insertion holes of the joint body. And a joining member guide hole having a joint member guide hole for guiding the fitting convex portion of the joint side joint fitting to the joint member insertion hole of the joint body. The connector according to any one of 1 to 7.   The joint main body of the connector according to any one of claims 1 to 7, and the fitting convex portion is inserted and fixed to the joint member insertion hole of the joint main body. The joint-side joint fitting of the joint tool described in any one of the above, a frame member, a joint member fixing hole drilled in parallel to a longitudinal direction on the end surface of the frame member, and the joint member fixing hole A frame-side joint metal fitting according to any one of claims 1 to 7, wherein the frame fixing portion is fixed, and a convex strip or a concave groove locking portion of the joint side joint metal fitting. And a frame member joining structure, wherein the joint main body and the frame member are joined by detachably engaging the concave strips or the convex strip engaging portions of the frame-side joint fitting.   The joint body of the joint device according to any one of claims 1 to 7 is embedded in the insertion hole for embedding the joint cosmetic body of the joint device according to claim 8, and the joining of the joint cosmetic body is performed. The fitting convex part of the joint side joint metal fitting of any one of Claims 1 thru | or 7 is inserted and fixed to the member guide hole and the joining member insertion hole of the said joint main body. The frame member joining structure according to claim 9, characterized in that:   The said frame member is provided with the protruding item | line fixing | fixed part which contact | abuts to the side part of the said base part of the said frame side joining metal fitting formed in the at least two sides which face oppositely. The frame member joining structure. The said frame member is equipped with the said protruding item | line fixing | fixed part longer than the thickness of the said base of the said frame side joining metal fitting, The joining structure of the frame member of Claim 11 characterized by the above-mentioned.

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