JPH07197545A - Cylindrical member connection structure - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To enable connection of rod-shaped members easily and high-strength connection without requiring special skill for connection work. A part of a side wall of one cylindrical member 1 is formed as a plane wall 1a extending in a length direction, concave grooves 4 facing each other are provided at both side edge portions of the plane wall 1a, and a connecting member 3 faces each other. Two plate-like locking portions 3a3b are formed such that the distance between them extends from the base end side toward the distal end side through a plate-like connecting portion 3c integrally provided between the plate-like locking portions. Engagement protrusions 5 that can be fitted into the recessed grooves 4 are provided at the base ends of the plate-like engagement portions 3a3b, and the engagement protrusions 5 of the connection member 3 are connected to the respective one of the tubular members 1. The engaging convex portion 5 is fitted into the concave groove 4 and one end of the other tubular member 2 is fitted from the tip end side of both plate-like locking portions 3a3b, so that the engaging convex portion 5 is provided in each concave groove 4 of the one tubular member 1. Being pressed against.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure for connecting cylindrical members in the fields of civil engineering, construction, transportation and the like.

[0002]

2. Description of the Related Art For example, in the case of constructing a balcony handrail of an apartment or the like, the connecting means for connecting the frame members is shown in FIG.
As shown in FIG. 5, the horizontal frame member (5
The ends of 2) were brought into contact with each other, and the contacted portions were joined by welding or brazing.

As another connecting means, as shown in FIG. 6, a T-shaped joint (53) has been used. That is, the main pipe portion (53a) of the T-shaped joint (53) is passed through the vertical frame member (51), while the end portion of the horizontal frame member (52) is inserted into the sub-pipe portion (53b) of the T-shaped joint (53). It had been.

[0004]

Among the above-mentioned conventional connecting means, the former requires some skill in welding or brazing and requires a lot of time and labor for these operations, and the horizontal frame member with respect to the vertical frame member (51). There was a problem that the positioning of (52) was difficult.

In the latter case, the vertical frame member (51) must be straight because the main pipe portion (53a) of the T-shaped joint (53) is passed through the vertical frame member (51). At least one end of the member (51) has a T-shaped joint (5
3) There is a limitation that bending or the like cannot be performed in order to pass through, and in the case of connection by this T-shaped joint (53), there is a drawback that it is difficult to obtain high joint strength.

SUMMARY OF THE INVENTION An object of the present invention is to provide a rod-shaped member connecting structure which can easily connect rod-shaped members without requiring special skill for connection work and which can be connected with high strength.

[0007]

A tubular member connection structure of the present invention is a tubular member connection structure in which one end of the other tubular member is connected to a side wall of one tubular member via a connecting member. A part of the side wall of the one cylindrical member is a flat wall extending in the length direction, concave grooves facing each other are provided in both side edges of the flat wall in the length direction, and the connecting members face each other. The two plate-like engaging portions are formed such that the distance between them extends from the base end side toward the tip end side through a plate-like connecting portion integrally provided between the plate-like engaging portions. At the base end of the cylindrical locking portion, there are provided outwardly engaging protrusions that can be fitted into the opposing grooves of one of the tubular members. It is fitted in each groove of one tubular member, and one end of the other tubular member is fitted from the tip side of both plate-like locking portions of the connecting member. As a result, the distal end portions of the two plate-like engaging portions come closer to each other and the base end portions of the two plate-like engaging portions are separated from each other, so that the engaging protrusions of the two portions engage the concave portions of one tubular member. It is pressed against the groove.

[0008]

According to the connecting structure of the tubular member of the present invention, the engaging convex portions of the plate-like engaging portion of the connecting member are respectively inserted into the concave grooves on the both side edge portions of the one tubular member, and the connection is made. By simply fitting the other tubular member onto the member, the distal end portions of both plate-like engaging portions approach each other via the plate-like connecting portion and the proximal end portions of both plate-like engaging portions open. The engaging convex portion of the portion is pressed into contact with the respective concave grooves of the one tubular member, and the tubular members are firmly connected by fitting the respective members.

[0009]

EXAMPLE An example in which the connection structure of the present invention is used for a balcony handrail of an apartment will be described.

The side wall (1a) of one substantially cylindrical member (1) which becomes the vertical frame member of the handrail is connected to the other cylindrical member (2) which becomes the horizontal frame member via the connecting member (3). In the connection structure of the tubular members, a part of the side wall of the one tubular member is a flat wall (1a) extending in the length direction, and concave portions facing each other at both side edges of the flat wall (1a). The groove (4) is provided in the longitudinal direction, and the connecting member (3) is a plate-like member in which two opposing plate-like engaging portions (3a) (3b) are integrally provided between the plate-like engaging portions. The space is formed so as to widen from the base end side toward the tip end side via the connecting portion (3c), and one tubular member (at one end of the tubular member (3a) (3b) is provided at the base end portion. Outward engaging projections (5) that can be fitted into the opposing recessed grooves (4) of (1) are provided, and each outward engagement of the connection member (3). The convex portion (5) is fitted into each concave groove (4) of the one tubular member (1), and the other tubular member (from the tip end side of both plate-like locking portions (3a) (3b) of the connecting member). By fitting one end of 2), the tip ends of both plate-like engaging portions (3a) and (3b) come close to each other and the base end portions of both plate-like engaging portions (3a) and (3b) open. The engaging convex portion (5) of the portion is pressed against the respective concave grooves (4) of the tubular member (1) on the one side.

The inner shape of the other tubular member (2) is substantially rectangular when viewed from the side surface into which both plate-like locking portions (3a) (3b) of the connecting member can be inserted. On the other hand, the inclined portions (3
d) is formed, and the end portion of the other tubular member (2) is smoothly fitted and covered by the inclined portion (3d).

According to the above-mentioned tubular member connecting structure, the plate-like engaging portions (3a) (3b) of the connecting member (3) are fitted in the recessed grooves (4) at the both side edges of the one tubular member (1). The engaging projections (5) of (1) are opposed to each other, and the other tubular member (2) is fitted onto the connecting member (3) to cover the plate-like connecting portion (3).
The distal end portions of both plate-like engaging portions (3a) and (3b) approach each other via c) and both plate-like engaging portions (3a) (3a) (3)
The base end portions of b) are separated from each other, and the engaging convex portions (5) of the portions are fitted into the concave grooves (4) of the one tubular member (2), and these respective members (1) and (2). Due to the fitting of (3), the two tubular members (1) and (2) are firmly joined.

The connecting member (3) can be appropriately moved along the concave grooves (4) of the one tubular member (2) corresponding to the connecting position of the other tubular member (2). it can.

FIG. 4 shows another embodiment of the connection structure of the present invention, in which a tubular member (22a) is horizontally connected between two vertical tubular members (21). The horizontal tubular member (22a) is connected by the same connection structure as in the above-mentioned embodiment.

On the other hand, below the cylindrical member (22a), an inclined cylindrical member (22b) is connected, and a connecting member (23) connecting this cylindrical member (22b).
The plate-like engaging portions (23a) and (23b) have an inclined shape corresponding to the tubular member (22b) when viewed from the front, and the other configurations are the same as the connection structure of the above-described embodiment.

In addition, the connection structure of the present invention is not limited to the above-mentioned embodiments, but can be applied to, for example, connection between a vertical frame member and a horizontal frame member of a fence.

[0017]

According to the connection structure of the present invention, the tubular members can be easily connected with a small number of mounting steps without requiring the operator to have a special skill, and both tubular members to be connected can be connected. Sufficient connection strength can be obtained only by fitting the connection members. Further, one tubular member to which the other tubular member is connected can be freely connected to the tubular member even if both ends thereof are bent, and the connecting position is also between the tubular members. This can be easily adjusted by sliding the connecting member interposed therebetween along the concave groove of the one tubular member.

Further, in the case of the connecting structure of the present invention, the plate-like engaging portion of the connecting member is formed into a desired inclined shape when viewed from the front, so that the other tubular member is inclined with respect to the other tubular member. You can also connect to.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a connection structure of the present invention.

FIG. 2 is a plan view showing a state before connection of each tubular member in the connection structure of FIG.

FIG. 3 is a cross-sectional view of essential parts showing a connected state of each tubular member in the connection structure of FIG.

FIG. 4 is a front view showing another embodiment of the connection structure of the present invention.

FIG. 5 is a perspective view showing a conventional example.

FIG. 6 is a perspective view showing another conventional example.

[Explanation of symbols]

 (1) Cylindrical member (1a) Side wall (2) Cylindrical member (3a) (3b) Plate-shaped locking part (4) Recessed groove (5) Engagement convex part

Claims (1)

[Claims] 1. A connecting structure for tubular members, wherein one end of the other tubular member (2) is connected to the side wall of the one tubular member (1) through a connecting member (3). A part of the side wall of the tubular member is formed as a flat wall (1a) extending in the length direction, concave grooves (4) facing each other are provided on both side edges of the flat wall (1a), and the connecting member (3) is The two plate-shaped locking portions (3a) and (3b) facing each other are spaced from each other by a plate-shaped connecting portion (3c) integrally provided between the plate-shaped locking portions so that the distance is from the proximal end side to the distal end side. The plate-like locking portions (3a) and (3b) are formed so as to spread toward the outside, and the base end portions of these plate-like engaging portions (3a) and (3b) can be fitted into the opposing concave grooves (4) of the tubular member (1). An engaging protrusion (5) is provided, and each outward engaging protrusion (5) of the connection member (3) is fitted into each groove (4) of the one tubular member (1). Both plate-like locking parts (3a)
By fitting one end of the other tubular member (2) from the tip end side of (3b), both plate-like locking portions (3a) (3
The distal end portions of b) approach each other, and the proximal end portions of both plate-like locking portions (3a) and (3b) are separated so that the engaging convex portion (5) of the portions is one tubular member (1). The connection structure of the cylindrical member press-contacted to each concave groove (4).