JPH10273932A - Connection tool and connection structure of a plurality of members - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection tool which has strong connection force and can be easily assumed and disassembed, and a connection structure of a plurality of members which uses the connection tool (or does not use the connection tool). SOLUTION: A connection tool 10 has a drive rod 1 having a locking part 1a, elastic pieces 2, 2 which are extended to both right and left sides from the drive rod 1, are curved, and are provided with a locked part 2a which can be engaged with the locking part 1a of the drive rod 1, and a connection face formed on the outside of the elastic piece 2. Moreover, grooves are cut in a first member and a second member, a connection member of two branches having a cross section of the same shape as the groove is put striding over both grooves and is fitted, the connection tool is inserted into a cutout section of the connection member, and a pressing in connection face is brought into pressure-contact with a side wall of the groove in the direction of a bottom of the groove for connection.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a partition,
A coupling for joining a plurality of members (especially plate materials) used for temporary scaffolds, guardrails, civil engineering materials, etc., which is configured to be pressed and inserted to deform and lock, and a dovetail groove or a U-shaped cross section The present invention relates to a connecting member for connecting members with cut grooves and a connecting structure thereof, and a connecting structure for a plurality of members that are fixed using a connecting tool such as a screw or a screw.

[0002]

2. Description of the Related Art Nails, screws, rivets and the like have conventionally been used to join various wood, metal and plastic plate-like members used for partitions, temporary scaffolds, guardrails, civil engineering construction materials and the like. Was. In connection with the assembly of buildings and furniture, and the joining of members such as temporary scaffolds, guardrails, and civil engineering, various joining members have been developed for the purpose of simply joining and joining members. However, these couplers have problems such that they cannot be disassembled or reassembled, or even if they are made, they are troublesome, and the same holes and screw holes are used to make the joints rattle easily. Also, in terms of strength, there is no contrivance to increase the strength with a small number of members, and the purpose is merely to join, and the fact is that the strength of the joint is not considered as a problem.

Further, when connecting and connecting a plurality of members (particularly, plate materials) used as partitions, temporary scaffolds, guardrails, and civil engineering and building materials, the end faces are connected in a state of being joined in order to protrude from the side walls of the members (plate materials). Has become complicated, and a gap has been left in the joint surface due to the relationship with the wall surface. Further, even with a simple structure, since the joint is a structure that can be attached to the outer surface of the member, the joint is overhanging from the member, resulting in an aesthetic defect. In addition, in the case of buildings and interiors, temporary scaffolds, guardrails, etc., because strength is required, bracing may be required, and the result is that the aesthetic appearance is impaired because emphasis is placed exclusively on strength. Had become. When two plate members are joined at a right angle, an angle is added to each corner in order to impart strength. In some cases, the laying of the angle is not aesthetically pleasing, and there is a disadvantage that sufficient strength cannot be obtained because only a bending moment is applied to the member in terms of strength.

[0004]

SUMMARY OF THE INVENTION The present invention has been conceived to eliminate the disadvantages of the prior art, and has a strong coupling force.
Moreover, it is possible to provide a coupling tool that is easily disassembled and assembled and is pressed and deformed with a single touch, and a coupling structure of a plurality of members in which a dovetail groove or a U-shaped groove is cut using the coupling tool.
It is another object of the present invention to provide a coupling structure that is fixed by a coupling tool such as a screw or a screw.

[0005]

In order to achieve the above object, a coupling according to the present invention comprises a driving rod having a locking portion on a base end side, a base extending from the distal end of the driving rod to the left and right sides, and An elastic piece that is curved to the end side and has a locked portion at the tip end capable of engaging with the locking portion of the driving rod; and a coupling surface formed outside the elastic piece. When the locked portion engages with the locking portion of the drive rod, the connecting surfaces on both sides can form a tapered surface that narrows toward the base end.
Further, the locking portion of the driving rod may be a step formed on the driving rod, and the locked portion of the elastic piece may be a key-shaped projection formed at the tip of the elastic piece. .

[0006] The connecting structure of a plurality of members of the present invention comprises a connecting member in which a dovetail groove is formed on both surfaces of a first member and a second member, and a pair of branches having the same cross-sectional shape as the dovetail groove are connected at right angles. 3. A notch is formed at a position where the coupling member is connected to the first member and the second member, and the coupling member according to claim 1 or 2 is inserted into the notch, and the driving rod is inserted. In the direction of the bottom of the dovetail groove, the locked portion of the elastic piece is engaged with the locking portion of the drive rod, and the connecting surface on both sides is pressed against the side wall of the dovetail groove. is there. Further, in another connecting structure of a plurality of members of the present invention, a dovetail groove is formed on both surfaces of the first member and the second member, a connecting member is fitted into both dovetail grooves, and the connecting member is screwed or screwed. A coupling structure of a plurality of members, which is fixed to the side wall of the dovetail groove by the coupling tool.

[0007] The connecting structure of the plurality of members includes a first member and a second member.
A groove having a U-shaped cross section is formed on both surfaces of the member, and a connecting member formed by connecting two branches having the same cross-sectional shape as the groove having the U-shaped cross section is provided on both surfaces of the first member and the second member. The coupling is inserted into a notch provided at a position flush with the plate surface of the branch of the coupling member, and the coupling is firmly pressed against the side wall of the groove to be coupled. This is a configuration in which the connecting member can be fixed to the side wall of the groove with another one-touch coupling tool or a coupling tool such as a screw or a screw.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a view showing a fastener of the present invention, FIG. 2 is a view for explaining a method of using the fastener 10, and FIG.
5 is an exploded perspective view showing an example in which a plurality of members (plate members) are connected, FIG. 4 is a sectional view of a branch of a connecting member, and FIG. 5 is a view showing a connected state. 6 and 7 are an exploded perspective view and a side view of another embodiment of the U-shaped groove according to the present invention.
FIG. 1A is a front view of a coupling 10, and FIG. 1B is a top view of the coupling 10. The coupling 10 is composed of a driving rod 1 and elastic pieces 2, 2 provided at the tip thereof in a symmetrical manner. Consists of Stepped locking portions 1a, 1a are formed on the left and right sides of the base end side of the driving rod 1. The elastic piece 2 has a locked portion 2a at its tip.
There is a key projection. The coupling 10 having such a configuration
Can be formed, for example, by injection molding various plastics.

The example shown in FIG. 3 is an example in which a first member 11 and a second member 12 made of a wooden board are joined at a right angle. The vertical first member 11 has a narrow entrance and faces toward the bottom. A wide vertical dovetail groove 11a is cut out. In this embodiment, the dovetail groove is cut out over the entire length of the member, but the length of the dovetail groove is not limited to that of this embodiment. Although only one vertical dovetail groove 11a is shown in the figure, a similar vertical dovetail groove is also formed on the back side of the first member 11, and both dovetail grooves are communicated by a horizontal groove 11b. . The horizontal second member also has dovetail grooves 12a, 12a formed on both front and back surfaces. However, there is no groove corresponding to the lateral groove 11b.

Reference numeral 13 denotes a connecting member. The connecting member 13 has a configuration in which a pair of branches 14 and 15 in the vertical direction and two branches 16 and 17 in the horizontal direction are connected at right angles.
The cross-sectional shape of each branch is a trapezoid having the same shape as shown in FIGS.
2a. In addition, each branch 14
In the vicinity of the front ends of the squares 17 to 17, square notches 14a, 15a, 16a, and 17a into which fittings are respectively fitted are formed.

Next, how to assemble will be described. First, the branch 14 of the connecting member 13 is inserted into the dovetail groove on the back side of the first member 11, and the branch 15 is inserted into the dovetail groove 11a from the tip of the branch. Then, the base 17b of the branch 17 enters the lateral groove 11b and stops. Next, the second member is brought horizontally, and the branch 16 is inserted into the lower dovetail groove 12a, and then the branch 17 is inserted into the upper dovetail groove 12a. The end surface of the plate 12 abuts on the first member 11 at right angles and stops. Next, cutout 1 of each branch
The coupling tool 10 is inserted into 4a, 15a, 16a, and 17a.

A coupling 10 inserted into a notch in a dovetail groove
Is in the state of FIG. In this state, when the drive rod 1 is pushed toward the bottom of the dovetail groove, the result is as shown in FIG. That is, the key-shaped locked portion 2a of the elastic piece 2 engages with the step-shaped locking portion 1a of the driving rod 1, and prevents the driving rod 1 from returning. The outer joint surface 2b of the elastic piece 2 is a tapered surface that becomes narrower toward the base end of the drive rod 1, and is in a state of being pressed against the inner wall of the dovetail groove 11a. Therefore,
Each branch 14, 15, 16, 17 does not come off from the first member 11 or 12, and the first members 11, 12 are joined. FIG. 5 is a diagram showing the connected state. The surface of the connecting member 13 and the first member 11 and the second member 12
Is desirably the same as the surface.
In addition, since the coupling tool does not protrude out of the member by forming the same surface, the appearance is simple and the structure is revolutionary.

Further, as another embodiment of the present invention, although not shown, there is provided a connecting structure which does not use the fitting / locking type connecting tool disclosed in claim 1 or 2, and connects a plurality of members. A dovetail groove is formed in the first member and the second member in the same manner as described above, but the dovetail groove of the present invention is not necessarily a tapered groove having a narrow entrance and widening toward the bottom. No need to configure. A connecting member that fits across the first member and the second member in the dovetail groove is slid and fitted closely to both dovetail grooves, instead of the coupling tool disclosed in claim 1 and 2, In this configuration, the connecting member is simply fixed to the side wall of the dovetail groove of each member by a conventional fastener such as a screw or a screw. Although this structure is different from the fitting type fitting which presses and deforms and locks according to the first aspect, there is a drawback that it is difficult to reuse the fitting, but it is not necessary to cut out a fitting notch in the connecting member. In addition, there is an advantage that the number of members to be prepared can be reduced because the coupling device according to the present invention is unnecessary. Further, the connecting structure of the plurality of members having the dovetail groove of the present invention can be realized without using the engaging tool of the specific shape according to the present invention.

Another embodiment of the present invention shown in FIG. 6 is an example in which a first member 51 and a second member 52 made of wooden boards are joined at a right angle. A U-shaped groove 51a is cut out. In this embodiment, it is not necessary to have a dovetail structure that becomes wider toward the back. Claim 1
The described fasteners need to have a dovetail structure, but other fasteners and fasteners such as screws and screws need not necessarily have a dovetail structure. Also, when the present invention is used for general construction, partitions, furniture, temporary scaffolds, guardrails, civil engineering building materials, etc., there is no need to cut dovetail grooves, so that there is an advantage that the process becomes simpler. The groove having a U-shaped cross section is cut out over the entire length of the plate material. The length of the groove is not limited to that of this embodiment. Although one vertical groove 51a is shown on the surface of the plate material in the figure, the groove is also formed on the back side of the plate material 51, and both grooves communicate with each other by a horizontal groove 51b. Horizontal second member 52
Also, grooves 52a and 52b are formed on both front and back surfaces.
However, there is no groove corresponding to the lateral groove 51b here.

A connecting member 50 according to another embodiment of the present invention.
Has a pair of two branches 54 and 55 in the vertical direction and a pair of two branches 56 and 57 in the horizontal direction. The cross-sectional shape of each branch is the same rectangular quadrangle, unlike the above-described embodiment. Notches 54a, 55a, 5 into which fittings are fitted are provided in each branch.
6a and 57a are cut and cut.

When the first member in the vertical direction and the second member in the horizontal direction are joined at a right angle and a load is applied to the horizontal member, a bending moment is generally applied to the entire horizontal member obliquely downward. As a result, the fulcrum is gathered at the joint, so that a support corresponding to the bending moment is required. However, in this embodiment, the load is distributed so that a pulling load is applied to the branch 57 and a compression load is applied to the branch 56. The branches are made of a material such as sintered metal or aluminum or steel laminated, but it is natural that the durability against pulling and compression is stronger than the durability against bending, and the overall strength of the combined structure of multiple members is It shows sufficient strength even without the presence of beam plates.

Another embodiment of the present invention shown in FIG. 7 shows the type of branch of a connecting member in which a pair of branches are connected at right angles. FIG. FIG. 4B is a side view of the connecting member of FIG. 3, wherein FIG. 4B is a connecting member for connecting three plate members intersecting in a T-shape, and FIG. 3C is a plate member at a corner of the two plate members connected at right angles. It is a side view of the connection member at the time of joining.

[0018]

As described above, since the coupling structure of the coupling device and the plurality of members according to the present invention is as described above, furniture, partitions, temporary scaffolds, guardrails,
It is used as a civil engineering building material and produces the following effects. 1-1 Since the two plate members are firmly connected by the connecting tool that does not protrude from the side wall, the external appearance is as if they were connected without the connecting tool. 1-2 having a driving rod having a locking portion, and an elastic piece provided with a locked portion at the tip end capable of engaging with the locking portion of the driving rod, wherein the locked portion of the elastic piece is driven When engaged with the locking portion of the rod, the outer coupling surface of the elastic piece can form a tapered surface that narrows toward the base end side, so if the coupling tool is inserted into the dovetail groove and the drive rod is pushed in, The locking portion and the locked portion can be easily engaged with one touch, and the coupling surface is pressed against the side wall of the dovetail groove, so that the two members can be securely coupled and fixed. 1-3 Since the structure is simple and only the connecting member is slid and inserted, it can be reused by removing the coupling member, and there is no fear of rattling even if it is reused. (2) If the locking portion is a step and the locked portion is a key-shaped projection, it is easy to push in, and the engagement is simple and reliable. 3
Since the connecting member is fitted into the dovetail groove formed in the first member and the second member and is fixedly connected with a one-touch connecting member, the connecting member does not protrude outside the member to be connected. Can be arranged side by side without gaps. (4) Since the connecting member is fitted into the dovetail groove of the first member and the second member and fixed with a one-touch coupling tool, a screw, a screw, or the like, a coupling tool having a complicated structure is unnecessary. (5) Since it is not necessary to cut a dovetail groove, it is simple and a groove can be easily formed on a conventional plate material. Further, it can be widely used not only for furniture but also for building modules, assembled houses, assembled furniture, and the like. 6 Easy joining is possible even by using conventional screws or screws.

[Brief description of the drawings]

FIG. 1 is a view of a fastener according to the present invention, wherein (a) is a front view,
(B) is a side view.

FIGS. 2A and 2B are diagrams for explaining how to use a coupling tool. FIG. 2A shows a state in which the coupling tool is inserted into a dovetail groove, and FIG. It is a figure showing the state where it was made to do.

FIG. 3 is an exploded perspective view showing a configuration in which a plurality of members are joined using the joint of the present invention.

4A and 4B are diagrams illustrating a cross-sectional shape of a branch of a connecting member, wherein FIG. 4A is a cross-sectional view taken along line AA of FIG. 3, FIG. 4B is a cross-sectional view taken along line BB of FIG.
(C) is a cross-sectional view taken along the line CC of FIG. 3, and (d) is a cross-sectional view taken along the line DD of FIG. 3.

FIG. 5 is a perspective view showing a coupling structure of a plurality of members.

FIG. 6 is an exploded perspective view showing a connection configuration of another embodiment of the present invention.

FIG. 7 is a side view of a pair of branches connected at right angles to another connecting member, wherein (a) is a side view of a connecting member connected at right angles;
(B) is a side view of the connecting member which joins the board | substrate which cross | intersects in T shape, (c) is a side view of the connecting member for joining straightly with a corner.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Drive rod 1a Locking part 2 Elastic piece 2a Locked part 2b Coupling surface 10 Coupler 11, 51 First member 11a, 12a, 12b Dovetail groove 11b, 51b Lateral groove 12, 52 Second member 13, 50 Connection member 14 , 15,16,17,54,55,56,57
Legs 14a, 15a, 16a, 17a, 54a, 55a, 5
5a, 57a Recesses 51a, 52a, 52b U-shaped cross-section grooves

Claims (6)

[Claims] 1. A drive rod (1) having a locking portion (1a) at a base end, a drive rod extending to both left and right sides from a distal end of the drive rod and curved to a base end, and locking the drive rod at a distal end. An elastic piece (2) provided with a locked part (2a) engageable with the part, and a coupling surface (2a) formed outside the elastic piece; A coupling tool, wherein when engaged with the locking portion of the drive rod, the coupling surfaces on both sides can form a tapered surface that narrows toward the base end side. 2. The locking portion of the driving rod is a step formed on the driving rod, and the locked portion of the elastic piece is a key-shaped projection formed at the tip of the elastic piece. The fastener of claim 1. 3. A dovetail groove (11a, 12a) is formed on both surfaces of the first member and the second member, and a connecting member (13) having a pair of branches having the same cross-sectional shape as the dovetail groove is formed on both dovetail grooves. Notches (14a, 15a, 16a, 17) at positions where the connecting members are connected to the first member and the second member.
a) is formed, and the fastener (10) according to claim 1 or 2 is inserted into the notch, and the driving rod is pushed toward the bottom of the dovetail groove to lock the locked portion of the elastic piece with the driving rod. Wherein the connecting surfaces on both sides are pressed against the side walls of the dovetail groove. 4. A dovetail groove is formed on both surfaces of the first member and the second member, a connecting member is fitted into both dovetail grooves, and the connecting member is connected to a side wall of the dovetail groove with a fastener such as a screw or a screw. A bonding structure of a plurality of members, which is fixed. 5. A groove (51a, 52a) having a U-shaped cross section is formed on both surfaces of the first member and the second member, and two branches having the same cross-sectional shape as the U-shaped groove are formed at right angles. The connecting member (53) provided continuously is fitted into a U-shaped groove provided on both surfaces of the first member and the second member, and a notch (54a) is formed at a position flush with the plate surface of the branch of the connecting member. , 55a, 56a, 57
a) forming a) and connecting the fitting to the notch to firmly press against the side wall of the groove; 6. A groove having a U-shaped cross section is formed on both surfaces of the first member and the second member, and a connecting member having a pair of branches connected at right angles is fitted into the groove having a U-shaped cross section. A coupling structure of a plurality of members, wherein the coupling member is fixed to a side wall of the groove by a coupling tool such as a screw or a screw.