JPH0249812B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention is suitable for machining and mass producing gates, fences, building window lattices, etc. in which multiple vertical lattices are attached to multiple horizontal members. This invention relates to a method for cross-connecting suitable hollow vertical members (vertical lattice) and horizontal members (horizontal bars).

<Prior art> Conventional methods for connecting the vertical lattice and the horizontal beams are usually done by welding if the two materials are steel pipes, or by screws or metal or plastic rivets if they are made of aluminum or stainless steel pipes.

<Problems to be solved by the invention> In the case of welding, welding marks are unsightly and
Rust occurs in a relatively short period of time. In addition, when using screws or rivets, it is necessary to drill holes and pass the screws or rivets through them, so it is not suitable for mechanized processing and assembly for mass production.

<Means for Solving the Problems> Accordingly, the present invention provides: A method for cross-connecting hollow vertical members and horizontal members, in which the hollow vertical members and the horizontal members are brought into contact with each other at their contact walls, and are fixed in that state. The contact wall of the horizontal member is provided with a series of fin rays whose tips protrude toward the hollow longitudinal member, and the contact wall of the hollow longitudinal member is provided with lateral slits corresponding to the thickness of the fin rays. In the fin rays of the horizontal member, two grooves are formed from the tip toward the horizontal member, passing through both side walls of the hollow vertical member, at the position where the hollow vertical member is connected. The intermediate piece is provided with a tongue-shaped portion whose free end faces the contact wall of the cross member and whose distance between the free end and the contact wall of the cross member is smaller than the thickness of the contact wall of the vertical member. , Insert the intermediate piece of the fin ray into the hollow part through the slit of the hollow vertical member, and at the same time insert both side walls of the hollow vertical member into the two grooves in the fin ray, crossing the contact walls of both materials. the intermediate piece is then bent inside the hollow part of the longitudinal member along the inner surface of the contact wall of the longitudinal member, and the free end of the tongue provided in the intermediate piece closes the slit in the longitudinal member from behind. That's what I did.

<Examples> In each of the illustrated examples, V indicates a hollow vertical member, and H indicates a horizontal member. Both members V and H are manufactured by extrusion molding of aluminum to a thickness of about 0.8 to 1.5 mm. The hollow longitudinal members may be pipes, which may be made of stainless steel, and the cross members may be hollow pipes or C-section members.

Both materials are in contact at contact walls 1 and 2, respectively, and intersect at right angles here. The cross member H integrally has a series of fin rays 3 which project from the contact wall 2 with their tips toward the longitudinal members. The thickness of this fin ray 3 should be approximately the same as the thickness of the cross member.

In this fin ray 3, two grooves 4, 4 are formed from the tip toward the horizontal member, allowing passage of both side walls v, v of the vertical member, at intervals where the longitudinal members should be connected. The space between the kerfs 4 and 4 is defined as an intermediate piece 5.

On the other hand, slits 6 in the horizontal direction corresponding to the thickness of the fin rays 3 are provided in the contact wall 1 of the vertical member V at a plurality of positions in the vertical direction to connect with the horizontal member.

As shown in FIG. 2, the slit 6 may be formed over the entire width of the contact wall 1, including the joints with both side walls v, v. In this case, a plurality of vertical members are lined up and cut with a saw. Easy to process. However, as shown in FIG. 3, it may be formed excluding the joints with the side walls v, v, that is, in accordance with the spacing between the opposite sides of the side walls. In this case, as mentioned above, the slit cannot be formed by sawing, so it must be done by press working, but since the slits remain at the joints with both side walls, the strength of the vertical member is greater than that obtained by sawing. It is excellent in that it does not reduce the

Therefore, the intermediate piece 5 of the fin ray 3 is inserted into the hollow part through the slit 6 of the vertical member, and both side walls v,
By inserting the contact walls 1 and 2 of the vertical member V and the horizontal member H into each other at right angles, the contact walls 1 and 2 of the vertical member V and the cross member H can be brought into contact with each other at right angles by inserting the contact walls 1 and 2 of the vertical member V and the horizontal member H by inserting the contact grooves 4 and 4 in the pair of kerfs 4 and 4 of the fin rays 3, respectively.

In the first embodiment shown in FIGS. 4 to 8, the two grooves 4, 4 of the fin ray 3 both reach the outer surface of the contact wall 2 at the back, and the depth of one of the grooves reaches the outer surface of the contact wall 2. It opens along the outer surface into an L-shaped groove 7 which extends part way towards the other kerf and thence part way towards the tip of the fin ray, thereby giving the intermediate piece 5 a tongue with its free end directed towards the cross member. form 8. The width of this L-shaped groove 7 along the outer surface of the contact wall 2 is slightly narrower than the thickness of the contact wall 1 of the longitudinal member.

Therefore, as mentioned above, the contact walls 1 and 2 of both materials V and H
After the pieces are brought into contact at right angles, the part 5' of the intermediate piece 5 connected to the cross member from the open end of the vertical member is cut with a tool so that it is attached to the inner surface of the contact wall of the vertical member as shown in FIG. Follow along. As a result, the free end of the tongue-shaped portion 8 comes into close contact with the inner surface of the contact wall of the vertical member, tightly closing the portion of the slit 6 through which it passed from the back, and cooperating with the bent intermediate piece 5, the vertical member It prevents it from coming off the cross member and connects it (Figures 7 and 8).

In this case, if the width of the groove 7 is made smaller than the thickness of the contact wall 1 of the longitudinal member as described above, the free end of the tongue will be pulled out from the slit into the hollow interior of the longitudinal member by bending the intermediate piece. , since it completely blocks the slit from the back.
Increases connection strength.

In the second embodiment shown in FIGS. 9 and 10, one of the two deep grooves 4, 4 of the fin ray 3 reaches the outer surface of the contact wall 2,
The other ends in front of the outer surface of the contact wall 2, maintaining a narrow spacing between them that is less than the thickness of the contact wall 1 of the longitudinal members. An L-shaped groove or notch 7 similar to that in the first embodiment extends to the back of the kerf that reaches the outer surface of the contact wall, forming a tongue 8, and a kerf 4 that does not reach the outer surface of the contact wall.
A notch 7' which is symmetrical to the notch 7 is also connected to the back of the notch 7 to form a tongue-shaped portion 8'.

Therefore, in this embodiment as well, the contact walls 1 and 2 are brought into contact with each other, the vertical member V and the horizontal member H are crossed, and the intermediate piece 5 is struck and bent with a tool from the end of the vertical member, so that it is attached to the inner surface of the contact wall 1. When aligned, the tongues 8, 8' come into close contact with the inner surface of the contact wall, and their respective free ends close the portion of the slit 6 through which they passed from the back (FIG. 10), and the bent intermediate piece 5 We will work with you to make the connections.

In the third embodiment shown in FIGS. 11 and 12, the fin rays 3 of the cross members
The two kerfs 4, 4 at the top both end before the outer surface of the contact wall 2 and maintain a spacing between them that is the same thickness as the contact wall 1 or narrower therebetween. And middle piece 5
A tongue 8 is formed by a U-shaped cut 7 facing the outer surface of the contact wall 2.

Therefore, in this embodiment as well, when the intermediate piece 5 is punched in the hollow interior of the vertical member with a tool and bent along the inner surface of the contact wall 1 of the vertical member, the tongue-shaped portion 8 comes into close contact with the inner surface of the contact wall 1, and the slit 6 is bent. Close the part you passed from the back and connect it. The intermediate piece of this incision 7 facing the outer surface of the contact wall 2 may be narrower than the thickness of the contact wall 1 of the longitudinal member between the outer surface of the contact wall 2 or from one end to the other as shown. A high connection strength can be obtained by making the width gradually narrower toward .

In each of the illustrated embodiments, the fin rays 3 provided on the contact wall 2 of the cross member protrude from the middle of the height of the contact wall 2, but of course they may also protrude from the upper or lower edge of the contact wall 2. .

Further, the cross-sectional shape of the vertical member is not limited to the rectangular shape shown in the figure, and the contact wall 1 may be curved convexly or concavely, or for example, as shown in FIG. , or the wings W may protrude outward from both side walls.

<Effects of the Invention> According to the present invention, the horizontal slits 6 in the contact wall 1 of the vertical members can be easily formed by sawing or pressing.
In addition, two kerfs 4, 4 are provided on the fin rays 3 of the contact wall 2 of the cross member.
The processing for forming the tongue-shaped portion 8 on the intermediate piece 5 between them can also be easily performed using a press.

Alternatively, after the contact walls of both the vertical and horizontal members are crossed and brought into contact with each other, the intermediate piece 5 can be bent from the end of the vertical member within the hollow part along the inner surface of the contact wall of the vertical member. This can be done at

Then, the bent intermediate piece 5 and the tongue-shaped part that comes into close contact with the inner surface of the contact wall of the vertical member by bending and closes a part of the slit from the back side move the vertical member in the direction away from the cross member. At the same time, since the intermediate piece protrudes into the slit of the longitudinal member, the longitudinal member cannot move vertically relative to the cross member, and is also prevented from moving vertically by the edges of the fin rays 3 adjacent to the kerf. The material cannot move laterally either.

Thus, the present invention has an excellent feature of increasing the productivity of gates, fences, window lattices, etc. in which a large number of vertical lattices are attached to the horizontal rails, and enables mass production.

[Brief explanation of the drawing]

FIG. 1 is an enlarged perspective view of a part of an example of a window lattice assembled using the connection method of the present invention, and FIGS. 4 is a plan view of the main part of the cross member according to the first embodiment of the present invention, FIG. 5 is a perspective view of the cross member shown in FIG. 4 before assembling the vertical member, and FIG. 6 is an intermediate piece. 7 is a partially cutaway perspective view of the vertical member assembled to the cross member, and FIG. 8 is a front view of the connecting portion of FIG. 7 with the longitudinal member broken. Fig. 9 is a plan view of the main part of the cross member of the second embodiment, Fig. 10 is a front view similar to Fig. 8 showing the connecting part according to the second embodiment, and Fig. 11 is a side view of the third embodiment. FIG. 12 is a plan view of the main parts of the material, and is a front view similar to FIG. 8 showing the connecting portion of the third embodiment. In the figure, V is a hollow vertical member, H is a horizontal member, 1 is a contact wall of the vertical member, 2 is a contact wall of the horizontal member, 3 is a fin ray, 4 is a kerf,
5 is an intermediate piece, 6 is a slit, and 8 is a tongue-shaped portion.

Claims (1)

[Scope of Claims] 1. A method for cross-connecting hollow vertical members and horizontal members in which the hollow vertical members and the horizontal members are brought into contact with each other at their contact walls, and are fixed in that state, wherein the contact wall of the horizontal members includes: A series of fin rays are provided whose tips protrude toward the hollow longitudinal member, and a lateral slit corresponding to the thickness of the fin ray is formed in the contact wall of the hollow longitudinal member. In the fin ray, at the position where the hollow longitudinal members are connected, two grooves are formed from the tip toward the horizontal member, passing through both side walls of the hollow longitudinal member, and the space between these grooves is used as an intermediate piece. The middle piece of the fin ray is provided with a tongue-like part in which the free end faces the contact wall of the cross member, and the distance between the free end and the contact wall of the cross member is smaller than the thickness of the contact wall of the vertical member. At the same time, insert the hollow vertical member into the hollow part through the slit, and at the same time insert both side walls of the hollow vertical member into the two grooves in the fin rays so that the contact walls of both members cross and contact each other, and then insert the vertical member into the hollow part. A hollow longitudinal member, characterized in that the intermediate piece is bent along the inner surface of the contact wall of the longitudinal member within the hollow portion, and the free end of the tongue-shaped portion provided on the intermediate piece closes the slit of the longitudinal member from the back side. and cross-connection method of cross members. 2. A method for cross-connecting hollow longitudinal members and cross-members according to claim 1, wherein one tongue-shaped portion is provided on one side of the intermediate piece. 3. A method for cross-connecting hollow longitudinal members and cross-members according to claim 1, wherein the tongue-like portions are provided one on each side of the intermediate piece. 4. A method for cross-connecting hollow vertical members and cross-members according to claim 1, wherein the tongue-shaped portion is provided by a U-shaped cut formed in the intermediate piece. .