JP3024085B2 - Surface lattice fastener - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a surface grid fastening metal fitting for mounting an aluminum grid in an aluminum sash window.

[0002]

2. Description of the Related Art Conventionally, as a structure of a fastening member 50 for attaching a surface lattice to an aluminum sash window by retrofitting, as shown in FIG. 7, a pot-shaped engaging portion 51 is provided at a base end portion of an L-shaped hardware.
Is formed on the ridge 56 of the sash frame 55,
1 is forcibly fitted and integrated by tapping,
A structure in which a surface grid 57 is fixed to the other end of an L-shaped metal piece is known.

[0003] According to the occlusal structure of this type of fastening fitting 50 by tapping having the pot-shaped engaging portion 51, the ridge 5 of the sash frame 55 is formed by the elastic engaging force of the pot-shaped engaging portion 51.
In the conventional structure, the tip of the pot-shaped biting portion 51 that has been hammered is prevented from dropping out of the ridge 56, and the tip of the pot-shaped biting portion 51 is formed on the inner wall side of the outer wall of the pot-shaped biting portion 51. The bent tongue-shaped folding piece 52 is cut and raised, and when the fastening metal fitting 50 is driven into the ridge 56 of the sash frame 55, the tip of the tongue-shaped folding piece 52 becomes the jaw 58 of the ridge 56. Some are designed to engage.

[0004]

However, the sash frame 55
The protrusion 56 has a different thickness depending on the type. In the structure of the tongue-shaped folded piece 52, the leading end of the structure is engaged with the step of the jaw 58, so that the protrusion from the protrusion 56 (arrow) A), the tongue-shaped bent piece 52 cuts and raises the elastic pinching force of the pot-shaped engaging portion 51, and the direction in which the ridge 56 extends (arrow B).
Cannot be reliably locked. In particular, when the ridge 56 is thin, the elastic clamping force does not work sufficiently.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has been made in consideration of the above problem, and in a surface grid fastening device used for attaching a surface grid to an aluminum sash window by retrofitting, a sash frame projection is provided. It can be firmly fitted and integrated by a simple method by tapping, and after installation, it can be securely fixed in the longitudinal direction and the dropout direction regardless of the thickness of the ridge formed on the sash frame. It is an object of the present invention to provide a surface grating fastening metal which can be manufactured and which is easy to manufacture.

[0006]

A surface grid mounting bracket according to the present invention is a surface grid fastening fitting for connecting and supporting a sash frame and a surface grid for mounting the surface grid on an aluminum sash frame for a window. Formed by a metal plate material of appropriate thickness having sufficient elastic strength, a substantially rectangular central metal plate material is bent at a right angle to form a support plate portion and a surface lattice mounting portion,
An elongated pot-shaped occlusion formed by forming an opening outwardly bent at the end of the support plate portion so that the end portion is bent inward so as to be orthogonal to the surface of the support plate portion, and then turned back and narrowed. A surface grid mounting bracket having a structure in which the pot-shaped engaging portion is struck against a ridge of the sash frame from the side, and is fitted and integrated by the elasticity of the metal plate material. The gist of the present invention is that at least a part of the folded portion of the occlusion portion is configured to intersect so as to recede from the surface of the receding refraction portion.

Further, the pot-shaped biting portion of the above-mentioned surface grid mounting bracket has
At least a part of the turn is bent back
Into the rectangular hole established in the refraction section.
In addition to the structure crossing so as to recede from the surface,
The upper and / or lower end of the folded part of the pot-shaped bite
Bends outward more than the opening and protrudes from the sash frame.
The gist is that an introduction part for hitting into the article was formed.
It is.

[0008] According to the above construction, the pot-shaped engaging portion can be driven into the aluminum sash frame for window from the side and fitted and integrated by the elastic clamping force of the metal plate material. When the occlusal portion is struck toward the ridge, the ridge of the aluminum sash frame is elastically held between the receding bent portion and the folded portion of the pot-shaped occlusal portion.

At this time, since the pot-shaped biting portion has a structure in which at least a part of the folded portion intersects so as to recede from the surface of the refraction portion, the elastic displacement becomes large, and the ridge becomes a conventional ridge. It is clamped with an elastic clamping force larger than that of the sash frame, and after the attachment, the surface lattice fastener does not move and displace in the longitudinal direction and the dropping direction with respect to the sash frame.

[0010] Further, since an introduction portion bent outward is formed at at least one end of the folded portion of the pot-shaped occlusion portion, introduction into the ridge of the sash frame is smooth and driving is facilitated, and construction is possible. Very easy.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a surface lattice fastener according to the present invention will be described below with reference to FIGS. Reference numeral a denotes an aluminum sash frame for a window, and reference numeral b denotes a surface lattice. The surface lattice fastening device 1 of the present invention includes a sash frame a and a surface lattice b for attaching the surface lattice b to the aluminum sash frame a for window. Are connected and supported.

The surface lattice fixing device 1 is formed of a metal plate having a thickness having a sufficient elastic strength and is punched by a shearing device. To form the support plate portion 2 and the surface lattice mounting portion 3. The end of the support plate 2 is bent inward so as to be orthogonal to the plane of the support plate 2 to form a refraction portion 4, and further folded to form a folded portion 5 to form a tip. The narrow opening 6 is formed outwardly to form an elongated pot-shaped engaging portion 7.

Reference numeral 8 denotes a rectangular hole formed in the refracting portion 4 of the pot-shaped biting portion 7, into which the curved portion 9 formed in the folded portion 5 on the near side of the opening 6 penetrates. The structure in which the receding portion 4 and the folded portion 5 intersect with each other (FIG. 3)
See).

Reference numerals 10 and 10 denote introductory portions in which the upper and lower ends of the folded portion 5 of the pot-shaped engaging portion 7 are bent outward, and the opening 6 extends beyond the plate thickness of the ridge a1 of the sash frame a. Is formed so that the ridge a1 of the sash frame a can be easily inserted when the pot-shaped engaging portion 7 is driven.

The surface lattice mounting portion 3 is provided with small holes 11, 11 for screw insertion, and fixing screws 12, 12 inserted from the small holes 11, 11 are screwed into the fastening plate 13. It becomes screwed with the screw holes 14 and 14, and the horizontal rail b of the surface lattice b
1 is sandwiched between the surface grid mounting portion 3 and the fastening plate 13 and is fastened and sandwiched and fixed by the fixing screws 12 and 12.

According to the above construction, the pot-shaped engaging portion 7 is slammed into the aluminum sash frame a for windows from the side.
The metal plates are fitted and integrated by the elastic clamping force. When the pot-shaped engaging portion 7 is struck toward the ridge a1, the pot-shaped engaging portion 7
Are folded so that the folded portions 5 intersect so as to enter the rectangular holes 8 of the receding refraction portion 4, so that the elastic displacement amount is large.

Accordingly, the surface lattice fastening device 1 does not move or displace in the longitudinal direction B and the dropout direction A with respect to the sash frame a after being mounted by fitting with a strong elastic displacement force (FIG. 6). See) Maintain a secure mounting posture.

When the surface lattice fastener 1 is struck, the introduction portions 10, 10 are formed at the upper and lower ends of the tip of the folded portion 5 of the pot-shaped engaging portion 7, so that the introduction portion 10 is formed by the sash frame a. The opening 6 is easily expanded beyond the plate thickness of the ridge a1 of the sash frame a1 regardless of the strong elastic displacement force.
Insertion into the ridge a1 becomes easier.

[0019]

FIG. 5 and FIG. 6 show another embodiment of the present invention. Differences from the above embodiment will be described. In this embodiment, the rectangular hole 8 is replaced with a rectangular punch 81.
That is, the curved portion 9 formed on the folded portion 5 on the near side of the opening 6 of the pot-shaped occlusion portion 7 is formed as a bulged curved portion 91 having a part in the width direction projecting toward the lumen side, and the bulged curved portion 91 is formed. A rectangular punch 81 swelling outward is formed in the receding refraction portion 4 corresponding to the portion 91 so as to bulge outward. Has become.

Incidentally, reference numeral 11 in the drawing denotes a groove structure for reinforcing the bending portion.

[0021]

As described above, according to the surface lattice fastening device of the present invention, the elastic holding force of the metal plate material can be obtained simply by tapping the pot-shaped engaging portion from the side of the ridge of the aluminum sash frame for windows. The fitting method can be integrated, and the mounting method is simple.

When the pot-shaped engaging portion is struck toward the ridge, the holding surface is configured to intersect at the inner side of the pot-shaped engaging portion, so that the structure of the holding surface is elastic holding force. Is increased to hold the ridge with a strong elastic force. Therefore, even after the sash frame has a relatively thin ridge, the sash frame does not easily fall out after the mounting.

Further, the surface lattice fastener according to the present invention can be easily constituted by a press machine when punching a member from a metal plate material, and has excellent features such as requiring no special device in manufacturing. Therefore, the effect after the present invention is implemented is extremely large.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of an embodiment of the invention of a surface lattice fastener according to the present invention.

FIG. 2 is an enlarged cross-sectional view taken along a line X in FIG.

FIG. 3 is an enlarged sectional view taken along a line Y in FIG. 1;

FIG. 4 is an explanatory view showing a fitting action of the same grid.

FIG. 5 is a partially cutaway perspective view showing another embodiment of the surface lattice fastener.

FIG. 6 is an enlarged sectional view taken along a line Z in FIG. 5;

FIG. 7 is a perspective view showing a state where a conventional surface grating fastening device is installed.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 surface grid fastening device 2 support plate portion 3 surface grid mounting portion 4 receding refraction portion 5 folded portion 6 opening 7 pot-shaped biting portion 8 rectangular hole 81 rectangular punch 9 curved portion 91 bulging curved portion 10 introduction portion a window Aluminum sash frame for b-plane lattice

Claims (1)

(57) [Claims] 1. A surface grid fastening device for connecting and supporting a sash frame and a surface grid for mounting the surface grid on an aluminum sash frame for a window, and formed of a metal plate material of an appropriate thickness having a sufficient elastic strength. The substantially central portion of the metal plate material to be substantially rectangular is bent at a right angle to form a support plate portion and a surface grid mounting portion, and the end portion of the support plate portion is perpendicular to the surface of the support plate portion. To form an elongated pot-shaped occlusion portion formed by outwardly bending an opening that is turned back and narrows the tip thereof, and that the pot-shaped occlusion portion is formed in front of the ridge of the sash frame. A metal plate material, and the metal plate material is fitted and integrated by elasticity. At least a part of the folded portion of the pot-shaped biting portion is bent.
Into the rectangular hole formed in the receding refraction section,
When the structure is crossed so that it retreats from the
Then, the upper and lower ends or the upper and lower ends of the folded part of the pot-shaped occlusion part
Bend more outward than the opening, and
A surface grid fastening device characterized in that an introduction portion is formed when it is driven into a ridge of a frame .