JPH07133635A - Device for connecting bar like member - Google Patents

Abstract

PURPOSE:To easily connect barlike members at high strength without requiring special technique for the connecting work. CONSTITUTION:In a device for connecting bar like members, one end of a barlike member is connected to a side wall la of the other barlike member through a connecting member 3. In the connecting member 3 having a nearly U-shaped cross section, a space between lock parts 3a, 3b of both sides thereof is gradually narrowed as it comes from the base end toward the tip, and both the lock parts 3a 3b can be freely separated. Tips of these lock parts 3a, 3b are respectively formed with projecting parts 6a, 6b facing to outside, and both edges of a side wall 1a of a barlike member are respectively formed with a projecting wall 5 projected from the side wall at a nearly right angle. The inside surface of both the projecting walls 5 are respectively formed with projections with a space corresponding to the thickness of outside-facing fitting projecting parts 6a, 7b of the connecting member 3 from the side wall 1a, and a space between the projection and the side wall 1a is formed into a groove 4 facing to the inside, and the side surface of the projection opposite to this inside-facing groove 4 works as a receiver surface of a connecting end of the other barlike member.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting device for connecting rod 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, as a connecting means of the frame member thereof, FIG.
As shown in, the end of the horizontal frame member (52) is brought into contact with the side surface of the vertical frame member (51), and the contact portion is joined by welding or brazing.

As another connecting means, as shown in FIG. 9, 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 horizontal frame member (52) is attached to the auxiliary pipe portion (53b) of the T-shaped joint (53).
Had been inserted at the end.

[0004]

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

In the latter case, the main pipe portion of the T-shaped joint (53)
Because the (53a) is passed through the vertical frame member (51), the vertical frame member (51) is
The vertical frame member (51) must be straight, and at least one end of the vertical frame member (51) has a restriction that it cannot be bent in order to pass the T-shaped joint (53). In the case of connection by), there is a drawback that it is difficult to obtain high bonding strength.

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

[0007]

A rod-shaped member connecting device of the present invention is a rod-shaped member connecting device in which one end of another rod-shaped member is connected to a side wall of one rod-shaped member via a connecting member. The connecting member has a substantially U-shaped cross section, and the distance between the locking portions on both sides of the connecting member becomes narrower from the base end side toward the distal end side, and the locking portions are separable from each other. Outward engaging projections are respectively provided at the tips, and projecting walls projecting at substantially right angles from the side walls are provided at both edge parts of the side walls of the one rod-shaped member, respectively. Is a groove formed inward from the side wall at an interval corresponding to the thickness of the outward engaging convex portion of the connecting member, and the inward groove is formed between the convex line and the side wall. The side of the ridge opposite to the groove should not be the receiving surface of the connecting end of the other rod-shaped member. The other rod-shaped member is fitted on the connecting member, leaving the tip portions of the both locking portions, and the connecting end of the other rod-shaped member is brought into contact with the receiving surface of the projection of the one rod-shaped member. In addition, the outward engaging protrusions of both locking portions of the connecting member are opposed to the inward groove of the one rod-shaped member, and the wedges are provided between the outward engaging convex portions of the tips of the engaging members of the connecting member. When the member is driven, both outwardly protruding protrusions at the tip of the locking portion of the connecting member are fitted into the inward groove of one rod-shaped member, and the connecting member is opened by driving the wedge member. The side wall of the connecting end of the other rod-shaped member is sandwiched between the portion and the protruding wall of the one rod-shaped member.

[0008]

According to the rod-shaped member connecting device of the present invention, the wedge member that is driven in firmly secures the fitted state between the inward groove portion of the protruding wall of one rod-shaped member and the outward engaging convex portion of the connecting member. While maintained, the connecting end of the other bar is
In a state in which the tip end thereof is in contact with the receiving surface of the projection on the protruding wall of the one rod-shaped member, it is stably and surely held between the protruding wall of the one rod-shaped member and the engaging portion of the connecting member. Therefore, one rod-shaped member and the other rod-shaped member are firmly connected by the above fitting through the connecting member.

[0009]

[Embodiment] An embodiment in which a balcony handrail of an apartment is constructed by using the connection device of the present invention will be described.

Side wall of a bar-shaped handrail member (1) having a substantially rectangular cross section
A connecting device for a rod-shaped member, wherein one end of a rod-shaped horizontal rail member (2) having a substantially rectangular cross-section is connected to (1a) via a connecting member (3), and the connecting member (3) has a substantially horizontal cross-section. The engaging portions (3a), (3b) on both sides of the engaging portion are narrowed from the base end side toward the distal end side, and the engaging portions are elastically separable from each other. Outward engaging projections (6a) and (6b) are provided at the tips of (3a) and (3b), respectively, and both side edges of the side wall (1a) of the bar-shaped handrail member project substantially at right angles from the side wall. Protruding side walls (5) are provided respectively, and on the inner side surfaces of both protruding wall (5), from the side wall (1a), the outward engaging protrusions (6a) (6b) of the connecting member are formed.
A ridge (5a) is formed at an interval corresponding to the thickness of the ridge (5a), and an inward groove (4) is formed between the ridge (5a) and the side wall (1a). 4) Opposite ridge (5a)
The receiving surface (9) of the connecting end of the horizontal bar member (2)
The connecting member (3) has both locking parts (3a) and (3b).
The rod-shaped horizontal rail member (2) is fitted and covered, leaving the tip of
The connecting end of this rod-shaped crosspiece member (2) is the rod-shaped handrail member (1).
Abutting against the receiving surface (9) of the ridge (5a) of the connecting member, and the outward engaging protrusions (6a) (6b) of both locking portions (3a) (3b) of the connecting member.
Are opposed to the inward groove (4) of the bar-shaped handrail member, and are wedged between the outward engaging protrusions (6a) and (6b) at the tips of the engaging portions (3a) and (3b) of the connecting member (3). By driving the member (10),
Both outward engaging protrusions (6a) (6b) at the tip of the locking part of the connecting member (3)
Is fitted into the inward groove (4) of the rod-shaped handrail member (1) and the engaging portions (3a) (3b) of the connecting member and the rod-shaped handrail member (1) which are separated by driving the wedge member (10). Protruding wall (5)
The side walls (2a) (2b) of the connecting end of the rod-shaped crosspiece member (2) are sandwiched between them, and the rod-shaped crosspiece member (2) and the connection member (3) have through holes (7a) formed in them. Rivet (8) is installed in (7b).

The rivet (8) is composed of a rivet body and an insertion portion into which the rivet body is inserted. When the rivet body is inserted into the insertion portion, the tip portion of the insertion portion is expanded and the rod-shaped crosspiece member. It is intended to fix the (2) and the connecting member (3).

When the rod-shaped handrail member (1) is connected to the rod-shaped crosspiece member (2) by the connecting device having the above-mentioned structure, the tip end of the connecting member (3) is left as shown in FIGS. 3 to 5. hand,
By fitting the rod-shaped crosspiece member (2) and inserting the rivet (8) into the through holes (7a) and (7b) communicating with each other, both members are integrally connected and the rod-shaped crosspiece member (2) The connecting end of the contact member is brought into contact with the receiving surface (9) of the projection (5a) of the bar-shaped handrail member, and the outward engaging protrusions (6a) (6a) (6a) (6a)
b) faces the inward groove (4) of the bar-shaped handrail member (1). Then, by driving the wedge member (10) between the engaging portions (3a) (3b) of the connecting member and the outward engaging convex portions (6a) (6b),
Both outward engaging protrusions (6a) (6b) at the tip of the locking part of the connecting member (3)
Is fitted into the inward groove (4) of the bar-shaped handrail member (1) and the locking parts (3a) (3b) of the connecting member opened by driving the wedge member (10) and the protruding wall (5) of the bar-shaped handrail member. The side walls (2a) and (2b) at the connecting end of the rod-shaped crosspiece member (2) are sandwiched between the two.

Although a rivet is used as a fixture for the rod-shaped horizontal rail member (2) and the connecting member (3) in the above embodiment, tapping screws, bolts, nuts or the like may be used. Further, in the above embodiment, the engaging portions (3a) on both sides of the connecting member (3)
(3b) is elastically deformed to be accessible, but for example, a hinge is provided between the engaging portions (3a) and (3b) and the intermediate substrate portion (3c) so that both engaging portions can be brought close to each other. Is also good.

FIG. 6 shows another embodiment of the present invention, in which a bar-shaped horizontal rail member (22) is horizontally connected between the bar-shaped handrail members (21). On the other hand, below the rod-shaped horizontal rail member (22), a rod-shaped horizontal rail member (23) is connected in an inclined shape, and the connecting member (24) connecting the rod-shaped horizontal rail member (23) is When viewed from the front, the rod-shaped horizontal rail member (23) is provided with an inclination corresponding thereto, and the other configurations are similar to those of the connection device of the above example.

FIG. 7 shows an embodiment in which the present invention is used to connect a side tree of a ladder and a cross rail, and a connecting member (33) is attached to the side tree (31).
The horizontal rails (32) are connected via the same, and the basic structure is the same as that of the connecting device of the bar-shaped handrail member (1) and the bar-shaped horizontal rail member (2) in the first embodiment. However, in the present embodiment, the cross rail (42) has a substantially barrel-shaped cross section, and a guide portion (44) that abuts the connection member (43) is provided inside.

Besides this, the connection device of the present invention can be applied to, for example, the connection between the vertical frame member of the fence and the bar-shaped horizontal rail member other than the above-mentioned embodiments.

[0017]

According to the connection device of the present invention, the connection can be easily made by fitting the rod-shaped members without requiring any special skill for the operator, and sufficient connection strength can be obtained. Further, one rod-shaped member to which the other rod-shaped member is connected can be freely connected to the member even if both ends thereof are bent, and the connecting position is also between the two rod-shaped members. The connection member can be easily adjusted by sliding the connection member along the groove of the rod-shaped member.

Further, in the case of the connecting device of the present invention, the rod-shaped cross rail member can be diagonally connected to the rod-shaped handrail member by forming the connecting member into a desired inclined shape when viewed from the front.

[Brief description of drawings]

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

FIG. 2 is a plan view showing a state before connection of members in the connection device of the present invention.

FIG. 3 is a partially cutaway plan view of the connection device of the present invention in which the connection member is fixed to the bar-shaped horizontal rail member.

FIG. 4 is a plan view of the connecting device of the present invention in a state where the outward engaging convex portions of the connecting member are opposed to the inward groove portions of the bar-shaped handrail member.

FIG. 5 is a plan view showing a connection state of each member by the connection device of the present invention.

FIG. 6 is a front view showing another embodiment of the connection device of the present invention.

FIG. 7 is a cross-sectional view of an essential part showing still another embodiment of the connection device of the present invention.

FIG. 8 is a perspective view showing a conventional example.

FIG. 9 is a perspective view showing another conventional example.

[Explanation of symbols]

 (1) Bar handrail member (1a) Side wall (2) Bar cross member (3) Connecting member (3a) (3b) Locking part (4) Groove part (5) Projecting wall (5a) Convex strip (6a) (6b) ) Engagement protrusion

Claims (1)

[Claims] 1. A connecting device for a rod-shaped member, wherein one end of another rod-shaped member (2) is connected to a side wall (1a) of one rod-shaped member (1) through a connecting member (3). (3) has a substantially U-shaped cross section, and the distance between the engaging portions (3a) and (3b) on both sides of the engaging portion becomes narrower from the base end side toward the distal end side, and the engaging portions can be separated from each other. The engaging portions (3a) and (3b) are provided with outward engaging protrusions (6a) and (6b) at the tips thereof, and the side walls (1a) of one of the rod-shaped members are provided at both edges. Projecting walls (5) projecting from the side walls at substantially right angles are provided respectively, and the inner side surfaces of both projecting walls are provided with thicknesses of the outward engaging projections (6a) (6b) of the connecting member from the side walls (1a). At intervals corresponding to
a) is formed, and an inward groove (4) is formed between the ridge (5a) and the side wall (1a), and a side surface of the ridge (5a) opposite to the inward groove (4) is formed. It is used as the receiving surface (9) of the connecting end of the other rod-shaped member (2), and the other rod-shaped member (3) is left with the tips of both locking portions (3a) (3b) left on the connecting member (3). 2)
And the connecting end of the other rod-shaped member (2) is abutted on the receiving surface (9) of the ridge (5a) of the other rod-shaped member (1), and both connection members are locked. The outward engaging protrusions (6a) and (6b) of the portions (3a) and (3b) are the inward groove portions (4) of one rod-shaped member.
The wedge member (10) is driven between the outward engaging projections (6a) and (6b) at the tips of the engaging portions (3a) and (3b) of the connecting member (3) to connect the connecting member (3). Both outward engaging protrusions (6a) and (6b) at the tip of the locking part of the member (3) are the inward groove parts of one bar member (1).
Between the locking parts (3a) and (3b) of the connecting member that are fitted into (4) and opened by driving the wedge member (10) and the protruding wall (5) of one rod-shaped member (1), the other A connecting device for a rod-shaped member, wherein side walls (2a) (2b) of a connecting end of the rod-shaped member (2) are sandwiched.