JP2593641Y2 - Connection structure of hollow members - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION This invention relates to a connection structure of the hollow member which is frequently used in such frameworks and stile set.

[0002]

2. Description of the Related Art Conventionally, a hollow block is connected with a connecting block which is inserted into a hollow portion to connect the two hollow members and a connecting member which is fixed to both outer members of the two hollow members whose end faces abut each other. I have. When both hollow members are connected at an angle, the connecting block is a corner block or the like, and the connecting member is an L-shaped bracket or the like.

However, in the case of a connecting block, after fitting,
Relatively troublesome work such as screwing and caulking work is required to prevent the hollow member from coming off, resulting in poor workability. For this reason, the cost is high. In the case of the connecting member, since the force for controlling out-of-plane deformation (twist, displacement in the expected direction) is weak, an additional structure for reinforcing this point is required. As in the case of the above, screwing and caulking work are required.

[0004]

SUMMARY OF THE INVENTION The object of the present invention is to simplify the connection of hollow members, improve workability and reduce costs.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a structure in which two hollow members are connected to each other by abutting end portions of a connecting block and a connecting member. Insertion holes are provided at connection end portions of the two hollow members. An engagement portion is provided on the coupling block at a position corresponding to the insertion hole. Locking claws are provided on both surfaces of the connecting member on the hollow member side to prevent the hollow member from coming off. Insert the connecting block into the hollow members on both sides and connect,
Further, connecting the connecting member from the outside to the outside of one hollow member.
And the outside of the other hollow member , and the locking claw is elastically connected to the engaging portion of the coupling block through the insertion hole.
Engage with touch and attach.

The connecting member is formed such that the angle of the portion corresponding to each of the two hollow members is smaller than the angle at which the hollow member fits, and is urged in a direction in which the engagement between the locking claw and the engaging portion is strengthened. you and to attach structure. A structure in which the connecting material is bent toward the hollow member side where the both ends on the tip side of the locking claw are to be joined to each other, and the locking claw is urged to the engagement member in a direction to strengthen the engagement, and is attached. you.

[0007]

The connecting block connects the two hollow members by fitting. The connecting member prevents the hollow member and the connecting block from coming off and defines the position of the hollow member with respect to the connecting block.

[0008]

FIG. 1 shows a first embodiment in which two hollow members A and B are connected at a right angle. A right angle corner block 1 (joining block) and a corner connecting member 2 (connecting member) are used. Used. The two hollow members A and B are extruded materials of an aluminum alloy, and the connection-side end surfaces 3 (a, b)
Are cut into 45-degree "reservoir" molds. Further, through holes 4 for positioning are provided on the upper surfaces of the end portions on the respective connection sides.
(A, b) are formed.

The corner block 1 is a molded article of a hard synthetic resin, and has a shape and dimensions whose cross-sectional shape fits exactly into the hollow members A and B. An engaging portion 5 (a, b) is formed at a position corresponding to the insertion hole 4 (a, b) at a position where the hollow members A and B fit. In this embodiment, the engaging portions 5 (a, b) are grooves formed so as to penetrate in a direction transverse to the longitudinal direction of the hollow members A, B, and the cross section thereof faces the vertex of the corner block 1,
The hooks are formed in mutually opposing hook shapes.

The corner connecting member 2 is formed by traversing an extruded material of an aluminum alloy. A locking claw 6 at a position corresponding to the through hole 4 (a, b) on the side surface of the hollow member.
(A, b). The engaging claw 6 (a, b) has a hook 7 (a, b) that is bent toward the corner vertex of the corner connecting member 2 at the inner end. In addition, the insertion hole 4
The dimensions a and b (FIG. 2) between (a, b) and the corner vertex are
The hollow members A and B, the corner block 1 and the corner connecting member 2 are strictly formed.

The connection is made as follows. The connection side ends of the hollow members A and B are inserted from both ends of the corner block 1 so that the insertion holes 4 (a, b) on the hollow member side and the engaging portions 5 (a, b) on the corner block side are aligned. Hollow member A,
The end of B abuts the "reservoir" (FIG. 2). Then, while slightly opening the angle of the corner connecting member 2, the locking claws 6 (a, b) on the side surface of the hollow member are slid along the outer surfaces of the hollow members A, B which are in contact at right angles. And the engaging claw 6 (a, b) through the through hole 4 (a, b).
(A, b) and engaged. Corner connection member
2 is outside of one hollow member A and outside of the other hollow member B
And the engagement is elastic
Done with a touch.

Thus, the connection angle of the two hollow members A and B is determined by the corner block 1, the out-of-plane deformation is prevented, and the corner portions are reinforced.
Further, the locking claws 6 (a, b) of the corner connecting member 2 maintain the hollow members A, B and the corner block 1 in a correct dimensional relationship, and prevent the two members from falling off. Once the corner connecting member 2 is mounted, the hooks 7 (a, b) of the locking claws 6 (a, b) are engaged with the engaging portions 5 (a, b).
It does not come off because it is locked by the hook-shaped groove b).

In this way, the two hollow members A and B
Is accurately and firmly connected by simple work without screws or caulking. 3 and 4 show a second embodiment.
The configuration of the corner block 1 and the corner connecting member 2 is different from that of the first embodiment.

In this embodiment, the corner block 1 is obtained by traversing an extruded material of an aluminum alloy.
It is possible to obtain a connection structure with accurate dimensions and higher precision. In addition, it is lightweight and can be obtained easily and in large quantities, so that it is inexpensive. The corner connecting member 2 is also made of an extruded material in the same manner, but in this embodiment, both ends on the tip side from the locking claws 6 (a, b) on both end sides.
The portion is slightly bent inward (ie, toward the hollow member side) (FIG. 3 ), and when attached to a corner, the locking claw 6
The engagement between the hook 7 (a, b) of (a, b) and the hook-shaped groove, which is the engaging portion 5 (a, b), is enhanced. This can also be achieved by making the bending angle of the corner connecting member 2 slightly smaller in advance than the connecting angle of the hollow members A and B.

FIG. 5 shows a third embodiment in which the hollow members A and B are not "reservoirs" but are vertically abutting connections. Both ends of the hollow members A and B are cut at right angles to the longitudinal direction, and a notch 8 is formed at a connection side end of one hollow member B at a portion where the other hollow member A contacts. The corner connecting member 2 has the same configuration as in the first embodiment. FIG.
Shows a fourth embodiment, in which two hollow members A and B are linearly connected by a linear connecting block 1 and a linear connecting member 2. The connecting block 1 and the connecting member 2 in this embodiment have the same structure as the corner block 1 and the corner connecting member 2 in the first embodiment simply extended linearly. That is, the present invention can also be used for connecting two hollow members A and B in a straight line.

FIG. 7 shows another embodiment relating to the connection block 1. As shown in FIG. Corner block 1 indicated by symbol (a)
Is made of a synthetic resin, and a large number of ribs 9 are formed on the surface thereof at intervals in a direction perpendicular to the longitudinal direction of the hollow members A and B. When the coupling block 1 is fitted to the hollow members A and B, the distal end edge of the rib 9 is in contact with the inner surface of the hollow member. Can be more robust. In addition, if the dimensions of the connection block 1 are large and it is difficult to fit the connection block, it can be easily dealt with by cutting the rib 9, and the versatility of the connection block 1 is high. Further, the rib 9 at the center can be made to function as the engaging portion 5 by molding its position at the position of the positioning through hole 4 (a, b).

The connecting block 1 indicated by the reference numeral (b) is a linear block, and is obtained by cutting an extruded material into appropriate lengths. The outer surface is provided with several ribs 10 parallel to the longitudinal direction of the hollow members A and B, and the leading edge thereof is in contact with the inner surface of the hollow member. As in the case of the above (a), the coupling block 1 can easily adjust the dimensions related to the fitting and cut out the central rib 10 at appropriate intervals.
The engaging portion 5 can be easily configured. Also, rib 1
Since 0 is parallel to the longitudinal direction of the hollow members A and B, the fitting with the hollow members A and B can be performed smoothly. The above is an example, and the present invention is not limited to the specific configuration illustrated. For example, the angle of the corner block 1 is arbitrary.

[0018]

According to the present invention, the two hollow members can be reliably connected by a simple operation, the workability is improved, and the cost can be reduced. Connect the connecting member to the angle between the two hollow members.
Or formed with a small angle,
Bend to the hollow member side to be joined
Direction in which the locking claw strengthens the engagement with the engaging portion
When it is attached by biasing it to
Is strengthened. It also connects two hollow members
Backlash is less likely to occur at individual locations.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view.

FIG. 2 is a longitudinal sectional view.

FIG. 3 is an exploded perspective view.

FIG. 4 is a longitudinal sectional view.

FIG. 5 is an exploded perspective view.

FIG. 6 is a perspective view.

FIGS. 7A and 7B are perspective views.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Connection block 2 Connection member 4 Insertion hole 5 Engagement part 6 Locking claw

Claims (2)

(57) [Scope of request for utility model registration] 1. A structure in which two hollow members are connected by abutting ends of a connecting block and a connecting member, wherein an insertion hole is provided at a connection-side end of the hollow member, and the connecting block is provided. An engaging portion is provided at a position corresponding to the insertion hole of the connecting member, and the surfaces on the hollow member side at both ends of the connecting member are elastically and one- touchly engaged with the engaging portions of the coupling block to prevent the hollow member from coming off. coupling provided with a locking pawl to be
Engage the member less than the angle between the two hollow members
The locking claw is formed at an angle to
Connecting the two hollow members by inserting the connecting block into the hollow portion of the hollow member, and further connecting the connecting member to the outside of one hollow member.
And a connecting member extending over the outside of the other hollow member, wherein the engaging claw is inserted through the insertion hole to engage with the engaging portion of the coupling block and is attached. 2. A structure in which two hollow members are connected to each other by abutting ends of a connecting block and a connecting member, wherein an insertion hole is provided at a connecting side end of the hollow member, and the connecting block is provided. An engaging portion is provided at a position corresponding to the insertion hole of the connecting member, and the surfaces of the connecting member on the hollow member side at both ends are elastically and one- touchly engaged with the engaging portions of the coupling block to prevent the hollow member from coming off. coupling provided with a locking pawl to be
Join both ends of the member on the tip side of this locking member
The engaging claw is strongly engaged with the engaging portion toward the hollow member side.
Yes bent to reduction, by inserting the coupling block the hollow portion of the hollow member to couple the two hollow members, or further a connecting member to the outside of the outer and the other hollow member of one of the hollow member
Therefore it Ategai connection structure of the hollow member characterized in that is mounted engages with the engaging portion of the coupling block through the locking claw into the insertion hole.