JP2736855B2 - Connecting device for rod-shaped members - Google Patents

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-shaped members in the fields of civil engineering, construction, transportation and the like.

[0002]

2. Description of the Related Art For example, when constructing a veranda handrail of an apartment or the like, the connecting means of the frame member is shown in FIG.
As shown in (1), the end of the horizontal frame member (52) is in contact with the side surface of the vertical frame member (51), and this contact portion is joined by welding or brazing.

As another connecting means, as shown in FIG. 10, a T-shaped joint (53) has been used. That is, while the main pipe portion (53a) of the T-shaped joint (53) is passed through the vertical frame member (51), the horizontal frame member (52) is passed through the sub-tube portion (53b) of the T-shaped joint (53).
End was inserted.

[0004]

Among the above-mentioned conventional connection means, the former requires a certain level of skill in welding or brazing, requires a lot of time and labor, and also requires a horizontal frame member for the vertical frame member (51). There is a problem that the positioning of (52) is difficult.

In the latter case, the main pipe portion of the T-shaped joint (53) is used.
(53a) is passed through the vertical frame member (51), the vertical frame member (51),
It must be straight, and at least one end of the vertical frame member (51) has a limitation that it cannot be bent or the like in order to pass through the T-shaped joint (53). In the case of the connection according to (1), there is a disadvantage that it is difficult to obtain a high bonding strength.

SUMMARY OF THE INVENTION An object of the present invention is to provide a connecting device for a rod-shaped member which can easily connect the rod-shaped member without requiring special skills for the connection work, and which can perform high-strength connection.

[0007]

According to the present invention, there is provided a connecting device for a rod-shaped member, wherein one end of the other rod-shaped member is connected to a side wall of one rod-shaped member via a connecting member. At the center of the width of the side wall of one of the rod-shaped members, a ridge is provided in the length direction thereof. On both side surfaces of the ridge, grooves are respectively formed in the length direction of the ridge, and the side wall faces each groove. Projecting walls projecting at substantially right angles from the side walls are provided at both edges of the connecting member, and the connecting member has a substantially U-shaped cross section, and the interval between the locking portions on both sides is from the base end to the distal end. The engaging portions are widened toward each other, and the engaging portions are freely accessible to each other. An inward engaging convex portion is provided at the tip of each of the engaging portions, and one end of the other bar-shaped member is fitted over the connecting member. As a result, the two locking portions approach each other, and the engagement projections of the two rod-shaped members project from each other. Together with fitted respectively in the grooves in both sides in which the side wall of the other rod-like member is sandwiched protruding walls of the locking portion and the one of the rod of the connecting member.

[0008]

According to the connecting device for a rod-shaped member of the present invention, the engaging projections of the engaging portion of the connecting member are respectively opposed to the grooves on both side surfaces of the protruding ridge of one rod-shaped member, and the other connecting member is connected to the other connecting member. Simply by fitting the rod-shaped member, the locking portions of the connecting member are urged in the approaching direction to each other. As a result, the engaging projection of the locking portion is fitted into the groove of the ridge of one rod-shaped member and the other. The side wall of the rod-shaped member is sandwiched between the locking portion of the connecting member and the protruding wall of one of the rod-shaped members, and the two rod-shaped members can be firmly connected only by fitting these members.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the connecting device of the present invention is used for a balcony handrail of an apartment will be described.

Side wall of bar-shaped handrail member (1) having a substantially rectangular cross section
(1a) A connecting device to which one end of a bar-shaped cross bar member (2) having a substantially rectangular cross section is connected via a connecting member (3) having a substantially U-shaped cross section, wherein a side wall (1a) of a bar-shaped handrail member is connected. A ridge (1b) is provided in the center of the width of the ridge in its length direction, and grooves (4) are formed on both sides of the ridge (1b) in the length direction of the ridge, respectively.
At both edges of the side wall (1a) facing the (4), there are provided protruding walls (5) protruding at substantially right angles from the side wall, and the connecting member (3)
Has a substantially U-shaped cross section, and the locking portions (3a) (3b) on both sides thereof
The distance between the two locking portions (3a) (3
The tip of b) is provided with inward engaging projections (6a) and (6b). One end of the bar-shaped crosspiece member (2) is fitted over the connecting member (3), so that the two The stop portions (3a) and (3b) approach each other, and the engagement protrusions (6a) and (6b) of the protrusions (1
The side walls (2a) and (2b) of the bar-shaped crosspiece member (2) are fitted into the grooves (4) on both side surfaces of (b), and the locking portions (3a) and (3b) of the connecting member and the protruding wall of the bar-shaped handrail member. (5) The rivet (8) is mounted in the through-holes (7a) and (7b) formed in both the rod-shaped crosspiece member (2) and the connecting member (3).

In the upper side wall (2c) of the end of the bar-shaped crosspiece (2), a notch (2) into which the ridge (1b) of the bar-shaped handrail member (1) enters.
d) is provided.

The rivet (8) comprises a rivet main body and an insertion portion into which the rivet main body is inserted. When the rivet main body is inserted into the insertion portion, the distal end portion of the insertion portion expands and the rivet (8) extends. (2) and the connecting member (3) are fixed.

When connecting the bar-shaped crosspiece member (2) to the bar-shaped handrail member (1) by the connecting device having the above structure, first, the bar-shaped handrail member is connected to the groove portions (4) on both side surfaces of the convex strip (1b). The engaging protrusions (6a) and (6b) of the engaging portions (3a) and (3b) of the member are opposed to each other, and the connecting member (3) is fitted with a bar-shaped crosspiece (2) to cover the connecting member. As a result of the locking portions (3a) and (3b) being urged in the approaching direction to each other, the engaging projections of the locking portions (3a) and (3b) are
(6a) and (6b) are fitted into the groove (4) of the ridge (1b) of the bar-shaped handrail member, and the side walls (2a) and (2b) of the bar-shaped crosspiece member are engaged with the connecting member engaging portions (3a) and (3b). And the protruding wall (5) of the bar-shaped handrail member. That is, a strong connection state can be obtained only by the above-mentioned fitting of the bar-shaped handrail member (1), the bar-shaped crosspiece member (2), and the connection member (3). The rod-shaped crosspiece member (2) and the connecting member (3) are connected to the through holes (7a) (7
As a result of inserting the rivet body into the insertion portion of the rivet (8) previously fitted in b), the rivet (8) is fixed, so that the connection state is further strengthened. Bar-shaped crosspiece (2) and connecting member
Although a rivet is used in the above embodiment as the fixing tool of (3), a tapping screw, a bolt / nut, or the like may be used. In the above embodiment, the locking portions (3a) and (3b) on both sides of the connecting member (3) are elastically deformable and are accessible, but for example, the locking portions (3a) and (3b) A hinge may be provided between the intermediate substrate portions (3c) to make both locking portions accessible.

FIG. 5 shows another embodiment of the present invention, in which a bar-shaped horizontal rail member (22) is connected horizontally between the bar-shaped handrail members (21). On the other hand, below the bar-shaped cross bar member (22), a bar-shaped cross bar member (23) is connected in an inclined manner, and a connecting member (24) connecting the bar-shaped cross bar member (23) is When viewed from the front, the bar is provided with a slope corresponding to the bar-shaped crosspiece (23), and the other configuration is the same as that of the connection device of the above example.

FIGS. 6 and 7 show a modification of the first embodiment, in which a ridge (31) provided on a side wall (31a) of a rod-like member (31) is provided.
A horizontal wall (31c) protrudes from both side edges of the side surface of (b) toward the connecting direction of the bar-shaped crosspiece (32), and the ridge (31b)
Are provided with gaps (31d) at predetermined intervals. Further, the connecting end of the bar-shaped horizontal rail member (32) is not provided with a notch, and other configurations are the same as those of the bar-shaped handrail member (1) and the rod-shaped horizontal rail member (2) in the first embodiment. This is the same as the case of the connection device. In the case of the present embodiment, the horizontal wall (31c) protruding from both side edges of the ridge (31b) in the connecting direction of the bar-shaped horizontal bar member (32) particularly connects the bar-shaped horizontal bar member (32). Is further improved in terms of stability and strength.

FIG. 8 shows an embodiment in which the present invention is used for connecting a side piece of a ladder to a crosspiece. A connecting member (43) is attached to a side piece (41).
The horizontal rail (42) is connected via a bridge, and the basic configuration is the same as that of the connecting device between the bar-shaped handrail member (1) and the rod-shaped horizontal rail member (2) in the first embodiment. However, in the present embodiment, the horizontal rail (42) has a substantially barrel-shaped cross section, and is provided with a guide portion (44) in contact with the connecting member (43).

In addition, the connection device of the present invention can be applied to, for example, connection between a vertical frame member of a fence and a bar-shaped horizontal beam member in addition to the above embodiments.

[0018]

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

Further, in the case of the connecting device of the present invention, by forming the connecting member into a desired inclination when viewed from the front, the other rod-shaped member can be connected obliquely to one rod-shaped member.

[Brief description of the drawings]

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

FIG. 2 is a sectional view of a main part showing a state before connection of each member in the connection device of the present invention.

FIG. 3 is a cross-sectional view of a main part of the connection device of the present invention in a state where the connection member is arranged on a bar-shaped handrail member.

FIG. 4 is a sectional view of a main part showing a connection state by the connection device of the present invention.

FIG. 5 is a front view showing another embodiment of the connection device of the present invention.

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

7 is a cross-sectional view of a main part showing a connection state by the connection device of FIG. 6;

FIG. 8 is a front view showing another embodiment of the connection device of the present invention.

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

FIG. 10 is a perspective view showing another conventional example.

[Explanation of symbols]

 (1) Bar-shaped handrail (1a) Side wall (1b) Convex (2) Bar-shaped crosspiece (3) Connection (3a) (3b) Lock (4) Groove (5) Projecting wall (6a) (6b ) Engagement protrusion

Claims (1)

(57) [Claims] 1. A connecting device for a rod-shaped member in which one end of another rod-shaped member (2) is connected to a side wall (1a) of one rod-shaped member (1) via a connecting member (3). At the center of the width of the side wall (1a) of the rod-shaped member (1), a ridge (1b) is provided in the length direction thereof, and on both sides of the ridge (1b), a groove (4) is formed in the length direction of the ridge. )
Are formed on both sides of the side wall (1a) facing the respective grooves (4), and projecting walls (5) projecting from the side wall (1a) at substantially right angles.
Is provided, the connecting member (3) is cross-section substantially U-shaped and made, and the locking portion spreads toward the tip side spaced from the base end side of the engaging portion of both sides (3a) (3b) (3a) (3b) The members are made to be able to approach each other, and inwardly engaging projections (6a) (6b) are provided at the tips of these locking portions (3a) (3b). When one end of the other rod-shaped member (2) is fitted over (3), the two locking portions (3a) and (3b) approach each other, and the engaging projections (6a) and (6b) are connected to one of the two. The rods are fitted into the grooves (4) on both sides of the ridge (1b), and the side walls (2a) (2b) of the other rod-shaped member and the locking portions (3a) (3b) of the connecting member and one rod-shaped A connecting device for a rod-shaped member sandwiched between projecting walls (5) of the member.