JPH08303069A - Device for press-fitting and joining small crosspieces in crosspiece assembly such as fence - Google Patents

Abstract

PURPOSE: To join a small crosspiece to a crosspiece by press-fitting the small crosspiece in a cutout groove formed in a rise-up fin of the crosspiece. CONSTITUTION: Cutout grooves 11 in rise-up fins 10 are inclined in opposite directions so that connecting walls 22 in joint beads 20 of a small crosspiece 2 are breakable. Thus, when the small crosspiece 2 is press-fitted, the connecting walls 22 are partly broken by inclined cutout end edges 13. These are received in front end curved parts 12 of the cutout grooves 11, and opposite wall parts at the front ends of the joint beads 20 bridges between remaining rise-up parts 14 left in the rise-up fins 10 so that the small crosspiece 2 is joined by clamping the edge parts of the cut-out grooves with the opposite walls 21 of the joint beads 20 and by clamping of the remaining rise-up parts 14 in a close-fit condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fence or gate used for joining a vertical crosspiece or a horizontal crosspiece to a horizontal crosspiece or a vertical crosspiece base crosspiece in a crosspiece assembly such as a fence, a gate, a surface lattice, or a handrail. The present invention relates to a small rail press-fitting and joining device in an assembly.

[0002]

2. Description of the Related Art As a small crosspiece press-fitting device for a crosspiece assembly such as a fence, a pair of cutout grooves are formed by cutting out the standing fins of the base crosspiece, and the joints arranged at both ends of the small crosspiece. Press-fit the strip and hold the notch groove edge between the opposing walls of the joint strip,
The one in which a small crosspiece is joined to the base crosspiece by applying a punching-out prevention means to this, for example,
No. 138670, No. 59-194456, No. 62-187166, and the like.

[0003]

[Problems to be Solved by the Invention] However, in this case,
The joining of small crosspieces requires both a press-fitting process and a punching-out preventing process, which makes production more complicated, but
The joining strength of the small crosspiece is ensured by depending on both the holding of the edge of the notch groove by the joining strip and the retaining means, so the retaining means is an essential element for securing the joining strength. Remains the problem that cannot be omitted.

The present invention has been made in view of such circumstances, and a problem to be solved by the present invention is that a fence or the like can secure a sufficient joint strength and facilitate production without using a retaining means. An object is to provide a small rail press-fitting and joining device in an assembly.

[0005]

According to the present invention, in accordance with the above-mentioned problems, a pair of notched grooves provided in the standing fins are stopped at an intermediate position of the heights of the standing fins, and the standing ends of the standing fins remain. While arranging the upright portion, the notch edge of the notch groove is used as a cutter to automatically rupture the connecting wall located between the opposing walls of the joint by the press-fitting pressure of the small rail joint, and the remaining remaining opposing wall Part is straddled over the above-mentioned remaining upright portion, and by firmly holding the remaining upright portion together with the edge of the notched groove by the joining strip, the press fitting of the joining strip becomes a complete joining means, and the retaining means is used. Without the need to secure the bonding strength, that is, the present invention provides claim 1
The joining ridges arranged at both ends of the small pier are press-fitted into a pair of notches formed by notching the upright fins of the base pier and the edges of the notches are sandwiched between the opposing walls of the joint. A cross-piece joining device in which a small cross-piece is joined to a base crosspiece, and the pair of cutout grooves are each provided with a V-shaped inclined slit having a tip bending portion that is inclined in the opposite direction and has its tip bent in the opposite direction. The pair of cutout grooves are formed in the shape of a letter, and a remaining upright portion in which the upright end portions of the upright fins are left is provided at the tip end side of each of the cutout grooves with the pair of the cutout grooves as the intermediate position of the upright fin height. In order to make the press-fitting of the joint a complete joining means, the longitudinal end of the rupturable connecting wall that connects the opposing walls of the joints by the press-fitting pressure, and the inclined notch edge located on the non-opposing side in the notch groove. As a cutter, it breaks like a tongue, and the broken part is introduced into the tip bending part. The remaining opposing walls that remained by connecting wall rupture of the bonding strip and straddled to the remaining upright portion with,
A small rail press-fitting and joining device in a rail assembly such as a fence, characterized in that a small rail is press-fitted and joined to a base rail by holding the notched groove edge portion of the facing wall and holding the remaining standing portion by the remaining facing wall portion. , A pair of helix-shaped inclined slits each of which is inclined in the opposite direction of claim 1 and has a tip bent portion whose tip is bent in the opposite direction. Instead of the notch grooves, a pair of notch grooves formed by arranging in a reverse V shape, inclined slits in a non-opposing direction, and having a V-shaped inclined slit having a tip bending portion whose tip is bent in the non-opposing direction. A small crosspiece in a crosspiece assembly such as a fence, characterized in that the tongue-like breakage of the longitudinal end of the connecting wall that can be broken is performed by using the inclined cutout edge located on the opposite side of the cutout groove as a cutter. A press-fitting joining device, and claim 3 In addition to the above, further, in order to obtain a small crosspiece which has a low cost and is excellent in strength and which can replace the small crosspiece made of aluminum extruded material generally used in the related art, the material of the small crosspiece can be changed. The small crosspiece is made of an aluminum thin plate roll forming molding material filled with a foamed resin as a core body, and the breakable connecting wall is formed by the aluminum thin plate. A press-fitting joining device is used, and each of them is a means for solving the problems as the gist of the invention.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the drawings illustrating the following embodiments.
Reference numeral 1 denotes a base rail which constitutes a pair of upper and lower horizontal rails, and 2 denotes a plurality of small rails which are arranged between the base rails 1 by press-fitting and joining the longitudinal ends to the base rail 1.

The base rail 1 and the small rail 2 are both made of a molded material 3 of aluminum thin plate roll forming in which a foamed resin 4 is filled as a core, and the small rail 2 is press-fitted and joined to the base rail 1. Into the pair of notch grooves 11 provided by notching the upright fins 10 of the crosspieces 1, the joint strips 20 arranged at both ends of the small crosspiece 2 are press-fitted to press the edges of the notch grooves 11 into the joint strips 20. It is assumed that the small crosspiece 2 is joined to the base crosspiece 1 by sandwiching it between the opposing walls 21 and the pair of notch grooves 11
Is formed by arranging a V-shaped inclined slit having a bent end portion 12 that is bent in the opposite direction in a C-shape, and the pair of notch grooves 11 are used as intermediate positions of the height of the upright fins 10. At the tip end side of the groove 11, a residual standing portion 14 in which the standing end portion of the standing fin 10 remains is disposed, and
By press-fitting 0, the longitudinal end of the rupturable connecting wall 22 connecting between the opposing walls 21 of each joint 20 is formed into a tongue shape by using the inclined notch edge 13 located on the non-opposing side of the notch groove 11 as a cutter. The broken portion 23 is broken and the broken portion 23 is introduced into the distal end bent portion 12, and the remaining facing wall portion 24 left by the breaking of the connecting wall 22 of the joint strip 20 is laid across the remaining standing portion 14 and the facing wall 21. It is assumed that this is done by holding the edge of the notch groove 11 together with holding the remaining standing portion 14 by the remaining facing wall portion 24. In this example, the small bar 2 is formed by the aluminum thin plate roll forming material 3.
By making it, the rupturable connecting wall 22 is
It is formed by the aluminum thin plate.

That is, in this example, the base rail 1 and the small rail 2 have improved mechanical strength as compared with JISA-6063T5 material used as an aluminum extruded material, JISA-3004H3.
A bar material suitable for use as a horizontal crosspiece by using 6 aluminum thin plate material and the base crosspiece 1 made of an aluminum thin plate material with a thickness of 0.5 mm, which is roll-formed so that the edges are bent and joined at the standing fin 10 parts. Also, the bar 2 is a bar material suitable for use as a vertical bar, which is made of an aluminum thin plate having a thickness of 0.3 mm and is roll-formed so that the edges are also bent and joined at the joint 20 portion on one side. In addition to the above, in both cases, urethane foam resin, for example, is injected from the remaining opening on the joint edge side before the final stage of roll forming, and the filling of the foam resin is entirely adhered to the aluminum thin plate material to fill the hollow part. , For example, by performing foam filling with a foaming ratio of 18 times.

At this time, the standing fins 10 are provided on the base bar 1.
Is an aluminum thin plate material having a thickness of, for example, 1.5 mm thick, which is formed by overlapping and folding three times, and has improved rigidity strength. It stands upright at the height of.

The pair of notch grooves 11 of the upright fins 10 are, for example, about 10 ° in the opposite direction, and particularly, 9.
The tip is bent at an inclination angle of 7 °, and the tip is bent in the opposite direction so as to have a curved semicircular bottom end.
The inclined slits having a width of mm are formed in a V shape, and the standing fins 10 are arranged in a logarithmic number corresponding to the number of the small crosspieces 2 in the longitudinal direction. With a height of 12 mm and a depth of 10 mm at an intermediate position, a standing end of the standing fin 10 is provided on the tip side of each notch groove 11, and a remaining standing portion 14 remaining at a height of 2 mm is arranged. There is.

In the small crosspiece 2, the joining strip 20 is formed by double-folding the above-mentioned aluminum thin plate material at the front end side so as to improve the rigidity and strength to a thickness of 0.6 mm, and at the rear end side. A pair of opposing walls 21 that can receive the foam-filled urethane resin and secure its rigidity are used in one, and the opposing walls 21 are connected in the middle so that the joint strip 20 has an H shape in this example. It is provided with a connecting wall 22 which is a single, that is, a thin bridge of an intermediate wall made of an aluminum thin plate material having a thickness of 0.3 mm.
It is made to be 5 mm and vertically projected so as to have a projection width of 5 mm.

The base bar 1 and the small bar 2 thus formed are
By press-fitting each joint strip 20 into the notch groove 11, the facing wall 21 of the joint strip 20 holds the edge portion of the notch groove 11 at its side end side, and the connecting wall 22 of the joint strip 20 becomes
By abutting and intersecting the inclined notched edge 13 located on the non-opposing side and still receiving the press-fitting pressure, the longitudinal tip thereof breaks like a tongue according to the width of the inclined notched edge 13. In this example, the fractured portion 23 of the connecting wall 22 is fed in the opposite direction so as to be extruded from the joining strip 20 by its self-curling property and the inclined notched edge 13 and is introduced into the tip bending portion 12. On the other hand, the remaining opposing wall portion 24 left by the breakage of the connecting wall 22 advances to the base crosspiece 1 side by directly receiving the press-fitting pressure and extends over the residual standing portion 14, and the remaining standing portion 14 is held. Then, the press-fitting of the joining strip 20 is performed by using the press-fitting of the joining strip 20 as a complete joining means.

At this time, the press-fitting of the joint strip 20 causes the connecting wall 22 to exhibit a self-breaking property, and the breakage is caused by the thickness of the slanted notch edge 13, that is, the standing fin 10.
Since the thickness of the remaining opposing wall portion 24 is made equal to the thickness of the remaining standing wall portion 14, the remaining facing wall portion 24 is provided at a distance between the fractured portions 23 so as to extend over the remaining standing wall portion 14 having a thickness corresponding to this in a close-fitting manner. Then, the strong holding is carried out. The holding wall 23 of the joint 20 holds the edge of the cutout groove 11 and the tongue-shaped broken portion 23 is introduced into the tip bending portion 12 to break the broken portion 23. Anti-rolling action, remaining standing wall 14 by remaining facing wall 24
In addition to the continuity of the standing fins, which is continuous without being divided by the presence of the remaining standing portion 14, the joining strength of the small rail 2 to the base rail 1 is determined by the fence A. Can be made sufficiently strong.

The fence A of this embodiment is, for example, a pair of base bars 1.
Are placed on the table so that the standing fins 10 face each other, and the small crosspieces 2 are placed in parallel with each other at a predetermined interval in a perpendicular manner, and the base crosspieces 1 are press-fitted by a pressing device so as to strongly press them in the opposite direction. The fence A can be constructed by performing simultaneous press-fitting joints such that pressure is applied, so that the production thereof can be performed by making the press-fitting process a complete joining means.

In the figure, reference numeral 15 is located between a pair of notch grooves 11 and is inserted into a receiving slit 25 provided at the tip of the small rail 2 in the longitudinal direction so as to reduce the press-fitting resistance, to prevent its fall prevention. It is an insertion projection piece of the standing fin 10 that is configured to operate as described above.

Although the illustrated example is as described above, the heli-shaped slanting slits having the tip bent portions each of which is inclined in the facing direction and the tip of which is bent in the facing direction are arranged in a h-shape. Instead of the pair of notches formed, a heve-shaped slanted slit was formed in an inverted C shape, each of which was inclined in the non-opposing direction and had a tip bending portion whose tip was bent in the non-opposing direction. It is possible to use a pair of notched grooves and to break the tongue-shaped rupture of the tip end in the longitudinal direction of the rupturable connecting wall by using the inclined notched edges located on the opposite sides of the notched grooves as a cutter. Also in this case, the self-breaking property of the connecting wall and the strong joining strength by press-fitting can be obtained in exactly the same manner except that the breaking direction is different from the above.

Further, the bent portion at the tip of the notched groove is horizontal or downwardly curved with the groove width of the inclined slit bent in a facing direction or a non-facing direction, and the joining strip is opposed to the H-shaped one. Use a U-shape with a connecting wall on the inner end side of the wall, and use a hollow aluminum extruded material for the small crosspiece, and reduce the breakage position as necessary so that the connecting wall can be broken. A pair of V-shaped grooves shall be engraved, and the small crosspiece shall be made of a metal thin plate roll forming material such as stainless steel other than an aluminum thin plate, and similarly V-shaped grooves shall be engraved at the breaking position. , In addition to fences, it can be used to construct gate assemblies such as gates, surface lattices, and handrails. It can be constructed in the same manner as the above-mentioned small rails and is provided with a retaining means such as punching. Use the cross at the same time,
Alternatively, the base frame, the small bar, the standing fins, the remaining standing parts, and the like of the present invention may be included including the case where the end frame is screwed to the end of the base bar to further improve the strength of the bar assembly. The material, the shape, the structure of the notch groove, the joint, and the specific aspects thereof, and the like, may be various as long as they do not violate the gist of the invention.

[0018]

Since the present invention is configured as described above,
Claims 1 and 2 both enable press-fitting and joining of the small crosspiece to the base crosspiece by using the small crosspiece joining strip as a complete joining means.
Clamping of the edge of the notch groove as well as gripping of the remaining standing portion in a close-fitting manner are achieved, and in combination with the anti-rolling action at the tip bending portion of the fracture site and the continuity of the standing fins, sufficient joint strength is obtained. Therefore, it is possible to provide a small rail press-fitting welding device in a rail assembly that can secure the joint strength and therefore can secure the sufficient joint strength and facilitate the production without using the retaining means.

Further, in addition to the above, the third aspect of the present invention is to obtain a small crosspiece which can replace the small crosspiece made of aluminum extruded material and which is low in cost and has excellent strength, and the material of the small crosspiece is changed. You can

[Brief description of drawings]

[Figure 1] Front view of the fence

FIG. 2 is a front view showing the relationship between the base crosspiece and the small crosspiece.

FIG. 3 is a cross-sectional view showing the relationship between the base rail and the small rail.

FIG. 4 is a vertical cross-sectional view showing the relationship between the standing fins and the joint strip.

FIG. 5 is a vertical cross-sectional view showing the relationship between the remaining standing wall and the joint strip.

FIG. 6 is a front view of the standing fin.

FIG. 7 is a cross-sectional view of a small crosspiece.

FIG. 8 is an enlarged front view of the standing fin.

FIG. 9 is an exploded perspective view showing the relationship between the base rail and the small rail.

[Explanation of symbols]

 A Fence 1 Base bar 2 Small bar 3 Molding material 4 Foaming resin 10 Standing fin 11 Notch groove 12 Tip bending part 13 Inclined notch edge 14 Remaining standing part 20 Joining strip 21 Opposing wall 22 Connecting wall 23 Breaking part 24 Remaining opposing wall part

Claims (3)

[Claims] 1. A pair of cutouts formed by notching the upright fins of the base crosspiece and press-fitting the respective joints arranged at both ends of the small crosspiece so that the edges of the notch groove face each other. A crosspiece joining device in which a small crosspiece is joined to a base crosspiece by being sandwiched between walls, wherein the pair of cutout grooves are each in the shape of an ellipse having a tip bent portion that is inclined in the opposite direction and has its tip bent in the opposite direction. The inclined slits are formed in a V shape, and the pair of notch grooves are used as an intermediate position between the heights of the upright fins, and a remaining upright portion in which the upright end portions of the upright fins are left is provided at the tip end side of each notch groove. Then, in order to make the press-fitting of the above-mentioned joining strip a complete joining means, the tip end in the longitudinal direction of the breakable connecting wall that joins the facing walls of each joining strip by press-fitting pressure is located on the non-opposing side in the notch groove. Use the inclined notch edge as a cutter to break it into a tongue shape, The remaining opposing wall portion that was introduced into the curved portion and remained due to the breakage of the connecting wall of the joint straddles the above-mentioned residual standing portion. A small rail press-fitting and joining device for a rail crosspiece assembly, which is characterized in that a small rail is press-fitted and joined to a base rail by being held. 2. A pair of notches formed by arranging heve-shaped slanted slits each having a tip bent portion, which is inclined in the opposite direction and has its tip bent in the opposite direction, in an H-shape. Instead of the grooves, a pair of notched grooves are formed by arranging each of them in an inverted C-shape, with a V-shaped slanted slit having a tip bent portion whose tip is bent in the non-opposing direction. A small crosspiece press-fit in a crosspiece assembly such as a fence, characterized in that the tongue-like breakage of the longitudinal end of the connecting wall that can be used and is broken is performed by using the inclined cutout edge located on the opposite side of the cutout groove as a cutter. Joining device. 3. The small crosspiece according to claim 1 or 2 is made of a molding material of aluminum thin plate roll forming in which foamed resin is used as a core body, and the breakable connecting wall is formed of the aluminum thin plate. A small crossbar press-fitting and joining device for crosspieces such as fences.