JPH025496B2 - - 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. Furthermore, in the case of using screws or rivets, it is necessary to drill a hole and pass the screw or rivet through the hole, 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 at the positions where the hollow vertical members are connected, and the outer surfaces of both side walls of the hollow vertical member slide against each other. Two claw pieces are formed between the two kerfs, each having a locking part on the side facing each kerf and divided into two by the tool insertion groove. The two claws of the fin ray are inserted into the hollow part through the slits of the hollow vertical member, and at the same time, the both side walls of the hollow vertical member are inserted into the fin ray. The tool is inserted into the two cut grooves in the vertical member so that the contact walls of both materials cross and come into contact with each other, and then the tool is inserted into the tool insertion groove between the two claw pieces in the hollow part of the vertical member. It is characterized in that the locking portions on the sides of each claw piece are engaged with protrusions on the inner surfaces of both side walls.

<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 cross member, allowing the outer surfaces of both side walls v, v of the vertical member to slide, at intervals at which the longitudinal members should be connected. In the area between the cut grooves 4, 4, two claw pieces 7, 7 are provided, which have a locking part 5 on the side facing each cut groove and are divided into two by a tool insertion groove 6.

On the other hand, the contact wall 1 of the vertical member V has a plurality of vertical positions connected to the horizontal member corresponding to the thickness of the fin ray 3, and a horizontal direction that allows the claw pieces 7, 7 to penetrate into the hollow interior. A slit 8 is provided.

Therefore, both claw pieces 7, 7 of the fin ray 3 are inserted into the hollow part through the slit 8 of the vertical member, and the outer surfaces of both side walls v, v of the vertical member are slid into the pair of notches 4, 4 of the fin ray 3. The contact walls 1 and 2 of the vertical member V and the horizontal member H can be brought into contact with each other orthogonally.

In the first embodiment shown in FIGS. 2 and 3, the width between the locking portions 5, 5 of the claw pieces 7, 7 is narrower than the distance between the side walls v, v of the vertical member V. For this reason, the slit 8 provided in the contact wall of the above-mentioned vertical member is adjusted to the width between the locking parts 5, 5 of both the claw pieces 7, 7, and the slit 8 is formed at both ends of the slit 8, that is,
The portion of the contact wall 1 where the slit 8 is left uncut is formed into a protrusion 9 that engages with each locking portion 7.

As a result, as mentioned above, the vertical member V and the horizontal member H are brought into contact with each other at the contact walls 1 and 2, and a tool whose tip is shaped like the tip of a screwdriver is inserted from the open end into the hollow part of the vertical member. Insert the tip of the tool into the insertion groove 6 between the claw pieces 7, 7, bend each claw piece 7, 7 in opposite directions to hook the locking part 5 to the protrusion 9, respectively. Both materials V and H are connected by engagement.

In the second embodiment shown in FIGS. 4 and 5, the projections 9, 9 of the vertical members are placed on each side wall v, v at a distance from the inner surface of the contact wall 1.
It is formed as a protrusion that thickens and projects integrally from the inner surface of the. These respective protrusions are integrally provided when the vertical member V is extruded.

Therefore, the position of the locking part 5 provided on each claw piece 7, 7 is correspondingly set a little apart from the outer surface of the contact wall 2 of the cross member. As a result, the vertical member and the horizontal member are brought into contact with each other at the contact walls and crossed, the tool is inserted into the hollow part of the vertical member from the end, and the tip of the tool is inserted into the insertion groove 6 of the claw pieces 7, 7. By widening the insertion groove and engaging the locking portion 5 of each claw piece with the protrusion 9, both materials V and H can be connected.

In this embodiment, the width between the locking parts 5, 5 of both claw pieces 7, 7 is equal to the distance between the side walls v, v of the vertical member, so
The slit 8 provided in the contact wall 1 of the longitudinal member is matched to its width, and the width of the kerfs 4, 4 is adjusted to the width of the side wall v, v of the longitudinal member.
It is adjusted to the thickness of

Contact wall 1 of the vertical members of the first embodiment and the second embodiment
The slit 8 provided in the vertical member can be formed by press working, and since the joint portion with the side walls v, v remains, the strength of the vertical member is not reduced much.

The third embodiment shown in FIGS. 6 and 7 is substantially the same as the second embodiment described above, in that each side wall v, v of the longitudinal member is provided with an integral ridge forming a projection 9 on its inner surface. The difference from the third embodiment is that the depths of the grooves 4, 4 provided in the fin rays 3 do not reach the outer surface of the contact wall 2 of the cross member, but end midway.

For this purpose, slits 8 are formed in the contact walls 1 of the longitudinal members.
are provided at the joints with both side walls v and v, and in some cases are also cut into both side walls.

The slit 8, which is formed so as to include the junction between the side walls v and v, can be easily formed by arranging a plurality of vertical members and sawing them.

The embodiment of FIGS. 8-10 is substantially the same as the third embodiment described above.

In this embodiment, each side wall v, v of the longitudinal member is punched out inwardly with cuts 10 at the rear of each end of the slit 8, and a protrusion 9 is formed by the punched portion.

In both of these embodiments, in the same manner as in the second embodiment, both materials V
It is clear that and H can be cross-linked.

In FIGS. 1 and 2, 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. You can also do it.

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, and furthermore, the cross-sectional shape of the vertical member may be curved convexly or concavely. Wings may extend from the top.

<Effects of the Invention> According to the present invention, the horizontal slits 8 in the contact walls 1 of the vertical members can be easily formed by sawing or press working, and the fin rays 3 of the contact walls 2 of the horizontal members are provided with two slits. Processing to form the cut grooves 4, 4 and form the two claw pieces 7, 7 between them can also be easily performed using a press.

Furthermore, after the contact walls of both the vertical and horizontal members are crossed and brought into contact with each other, it is mechanically easy to insert the tool tip into the insertion groove 7 from the end of the vertical member within the hollow part to widen the insertion groove. can be done.

By engaging the locking portion 5 of each claw piece 7 with the protrusion 9, the vertical member is prevented from moving away from the cross member, and at the same time both claw pieces are inserted into the slit of the vertical member. Therefore, the longitudinal members cannot move vertically relative to the horizontal members, and the longitudinal members cannot move laterally due to the edges of the fin rays 3 adjacent to the kerf.

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 drawings]

Fig. 1 is an enlarged perspective view of a part of an example of a window lattice assembled using the connecting method of the present invention, and Fig. 2 is a perspective view of the first embodiment of the present invention before assembling the vertical members to the horizontal members. Figure 3 is a partially cross-sectional plan view of the main part of the state where the vertical member is assembled to the horizontal member, and Figure 4 is a plan view of the second embodiment before the vertical and horizontal members are assembled. FIG. 5 is a plan view of the main parts of the vertical and horizontal members in FIG. 4 assembled together, FIG. 6 is a plan view showing the relationship between the main parts of the vertical members and the horizontal members of the third embodiment of the present invention, FIG. 7 is a plan view of the main parts of the vertical member and cross member of FIG. 6 assembled together, and FIG. 8 is a plan view showing the relationship between the main parts of the vertical member and the cross member of another embodiment of the present invention. 9 is a plan view of the main part of the vertical member and cross member of FIG. 8 assembled together, and FIG. 10 is a perspective view of the vertical member of FIG. 8. 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 a locking portion, 6 is a tool insertion groove, 7 is a claw piece, 8 is a slit, and 9 is a protrusion.

Claims (1)

[Scope of Claims] 1. In 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; a series of fin rays projecting toward the hollow longitudinal members at their tips; and transverse slits corresponding to the thickness of the fin rays formed in the contact walls of the hollow longitudinal members; In the fin ray, two grooves are formed from the tip toward the horizontal member at the positions where the hollow vertical members are connected, and the outer surfaces of both side walls of the hollow vertical member slide against each other. A locking part is provided on the side facing the cutting groove, and two pawl pieces are formed which are divided into two by the tool insertion groove, and the hollow vertical member has a locking part on the side facing the cut groove, and a hollow vertical member has a protruding part from the inner surface of both side walls. Provide a protrusion that engages with the locking part; At the same time, insert the two claws of the fin ray into the hollow part through the slit of the hollow longitudinal member, and at the same time insert the both side walls of the hollow longitudinal member into the grooves of the two fin rays. Insert the contact walls of both materials so that they are in contact with each other, and then insert the tool into the insertion groove of the tool between the two claw pieces in the hollow part of the vertical member to widen the insertion groove, and A method for cross-connecting hollow vertical members and horizontal members, characterized in that the locking portions of the sections are engaged with protrusions on the inner surfaces of both side walls. 2. In the method for cross-connecting hollow vertical members and horizontal members as described in claim 1, the protrusions on the inner surfaces of both side walls of the hollow vertical members are hollow holes provided at both ends of the lateral slits formed in the contact walls. Method of cross-connecting longitudinal and transverse members. 3. In the method for cross-connecting hollow longitudinal members and cross members as described in claim 1, the protrusions on the inner surfaces of both side walls of the hollow longitudinal members are connected to the hollow longitudinal members provided apart from the inner surfaces of the contact walls of the hollow longitudinal members. Cross-connection method for cross members.