JPH0214568Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a connecting device for bar materials such as T-bars and Y-bars that support ceiling panels.

[Conventional technology]

Generally, when supporting ceiling panels, T-bars or Y
Bar materials such as bars are suspended and supported, the bar materials are framed in a lattice shape, and the intersections of the vertically extending bar materials and the horizontally extending bar materials are interconnected.

Conventionally, when connecting bars at intersections,
As shown in FIG. 1, an elongated insertion hole 3 extending in the vertical direction is formed in the web 2 of the bar material 1 extending in the vertical direction, and both ends of the connecting plate 4 inserted into the insertion hole 3 are inserted in the horizontal direction. The web 2' of the extending bar material 1' is overlapped with screws or riveted.

[The problem that the idea aims to solve]

By the way, in the above-mentioned bar material connecting device, mounting holes are formed in both ends of the connecting plate and in the web of the bar material extending in the horizontal direction, and the mounting holes are aligned with each other and fastened with screws or rivets. This had the inconvenience of requiring a lot of effort to connect.

Japanese Utility Model Publication No. 1318/1983 discloses that a through hole is formed in the vertical wall of a building material extending in the vertical direction, a connecting fitting is attached to the building material extending in the horizontal direction in the form of a contact plate, and a small piece at the tip of the connecting fitting is inserted into the through hole. A joining device is described that connects building materials to each other by inserting and bending the tips of small pieces protruding from a through opening.

By the way, in the above-mentioned joining device, if the tip small piece of the connecting fitting is bent in one direction, there is a risk that the bent piece may slip out of the through hole, so the tip small piece is bifurcated and the bifurcated pieces are reversed. I try to bend it in the direction.

For this reason, only one piece of the tip can be inserted into the through-hole, and it cannot be used as a connecting device for the intersection of bars that intersect in a cross shape.

The object of this invention is to provide a connecting device for bar materials that can extremely easily and reliably connect the intersections of cross-shaped bars.

[Means to solve the problem]

In order to achieve the above object, in this invention, connecting pieces are connected to the web edges of a pair of bar materials whose end faces are opposite, and the upper or lower part of each connecting piece is bent in opposite directions to engage. The web of the bar material forming a piece and disposed between the opposing parts of the pair of bar materials has vertical holes elongated in the vertical direction into which each of the connecting pieces is inserted, and a vertical hole communicating with the end of the vertical hole. A horizontal hole elongated in the left-right direction into which each of the engaging pieces is inserted is formed, a connecting piece and an engaging piece are inserted into the vertical hole and the horizontal hole, and the engaging piece protruding from the horizontal hole is folded against the connecting piece. They adopted a structure in which the web is bent around a curve and engaged with the side surface of the web.

[Effect]

As described above, by inserting the insertion piece and the engagement piece into the vertical hole and the horizontal hole, and bending the engagement piece protruding from the horizontal hole, the engagement piece can be inserted into the bar material having the vertical hole and the horizontal hole. Since it engages with the side surface of the web, it is possible to reliably connect the cross-shaped bars.

〔Example〕

Embodiments of this invention will be described below with reference to FIGS. 2 to 4 of the accompanying drawings.

As shown in FIG. 2, a bar material 1 extending in the vertical direction
0 and a pair of bar members 10' and 1 extending laterally.
0' has a cylindrical head 12 on the upper side of the web 11, and a flange 1 for supporting the panel on the lower side.
3.

A connecting piece 14 is formed at the tip of the web 11 of a pair of bar members 10', 10' extending in the horizontal direction, and a step 15 is formed in the middle of the lower side of the connecting piece 14, and the step 15 and the flange 13 The dimension l between the end faces is equal to the width dimension of the flange 13.

Further, a notch 16 is formed on the upper side of the connecting piece 14 toward the step 15, and the notch 16
The upper end of the connecting piece 14 is bent laterally along a horizontal straight line passing through the lower end of the connecting piece 14 . An engaging piece 17 is formed by the bending, and the orientation of this engaging piece 17 is opposite to that of the engaging piece 17 provided on the other connecting piece 14.

The web 11 of the bar material 10 extending in the vertical direction includes
A vertical hole 18 is formed that extends long in the vertical direction, and the width of the vertical hole 18 is equal to 2 times the thickness of the connecting piece 14.
In addition, the length is approximately equal to the dimension between the upper and lower sides at the tip of the connecting piece 14.

A horizontal hole 19 extending long in the left-right direction is formed at the upper end of the vertical hole 18, and the engaging piece 17 can be inserted into the horizontal hole 19.

Now, vertical holes 18 and horizontal holes 1 are formed in the bar material 10 from both sides of the bar material 10 extending in the vertical direction.
When a pair of connecting piece 14 and engaging piece 17 are inserted into 9, step 15 comes into contact with the side surface of web 11, and the tip of connecting piece 14 and engaging piece 17 pass through vertical hole 18 and horizontal hole 19, respectively. and protrudes to the back side of the web 11.

Therefore, when each of the engaging pieces 17 is rotated 90 degrees upward around the folding line with respect to the connecting piece 14, the engaging pieces 17 engage with the side surface of the web 11 and form a cross shape, as shown in FIG. Three bar materials placed in 1
0, 10', 10' can be connected to each other.

In the case of the embodiment, the engaging piece 17 is formed at the upper front side of the connecting piece 14, but the engaging piece 17 may be formed at the lower front side of the connecting piece 14. In this case, a horizontal hole 19 into which the engaging piece 17 is inserted is provided at the lower end of the vertical hole 18.

Note that the flange 1 of the bar material 10 extending in the vertical direction
Flange 13 of bar material 10' extending laterally to 3
By providing a notch into which the end of the connecting piece 1 can be inserted,
4 can be shortened.

Further, it is preferable that the corners of the leading end of the connecting piece 14 and the leading end of the engaging piece 17 be rounded so that they can be easily inserted into the vertical hole 18 and the horizontal hole 19.

[Effect of idea]

As described above, in this invention, connecting pieces are connected to the web edges of a pair of bar materials arranged in a straight line, and the upper or lower parts of the pair of connecting pieces are bent in opposite directions to form an engaging piece. A vertical hole into which two connecting pieces can be inserted is provided in the web of the bar material arranged between a pair of bar materials, and a horizontal hole into which an engaging piece can be inserted into the end of the vertical hole. Therefore, by inserting the connecting piece and the engaging piece into the vertical hole and the horizontal hole, and bending each engaging piece around the bending line relative to the connecting piece, the bars arranged in a cross shape can be connected to each other. can do.

In addition, since the engaging piece is bent with respect to the connecting piece, when connecting the bar material inserted into the horizontal hole, the engaging piece does not come into surface contact with the other connecting piece and is engaged. The work of folding the joint pieces is easy.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional front view showing a conventional bar material connection structure, Fig. 2 is a partial perspective view showing an embodiment of the bar material according to this invention, and Fig. 3 is a longitudinal cross-sectional view showing the connected state of the same bar material. The side view, FIG. 4, is a sectional view taken along the - line in FIG. 3. 10, 10'... Bar material, 11... Web, 1
4... Connection piece, 17... Engagement piece, 18... Vertical hole,
19...Horizontal hole.

Claims (1)

[Scope of utility model registration request] Connecting pieces are connected to the web edges of a pair of bar materials whose end surfaces face each other, and the upper or lower part of each connecting piece is bent in opposite directions to form an engaging piece, thereby connecting the opposing parts of the pair of bar materials. The web of bar material placed in
A vertical hole elongated in the vertical direction into which each of the connecting pieces is inserted, and a horizontal hole elongated in the left-right direction that communicates with the end of the vertical hole and into which each of the engaging pieces is inserted, and the vertical hole and A bar material coupling device in which a connecting piece and an engaging piece are inserted into a horizontal hole, and the engaging piece protruding from the horizontal hole is bent around a folding line for the connecting piece to engage with the side surface of a web.