JP3375317B2 - Sash frame fixing bracket - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sash frame fixing metal fitting for connecting an anchor fixed to an opening of an outer wall of a building and a sash frame.

[0002]

2. Description of the Related Art When attaching a sash to an outer wall opening of a reinforced concrete structure, the connecting portion of the fixing metal fitting is engaged with the inward convex edge provided on the back surface of the sash frame to construct the fixing metal fitting. A means of fixing to a reinforcing bar or an anchor (hereinafter referred to as an anchor, etc.) protruding to the opening of the outer wall of the object is adopted. As shown in FIG. 6, the conventional sash frame fixing bracket separates the middle part of both ends of the flat member and both side parts thereof, and the middle part and both side parts are directed inward of the sash frame in the thickness direction of the flat member. The base for welding the anchors and the like is formed by molding the flat member in such a manner that the convex edges can be clamped so that the convex edges can be sandwiched, and by folding the central portion of the flat member into a rectangular shape.

[0003]

However, in the structure of the above-mentioned conventional sash frame fixing metal fitting, the thickness of the flat member, which is an element for enhancing the load resistance, is an element for deteriorating the workability, and the portion for clamping is supported. The fact that it is formed by bending in the same direction as the direction in which it is formed is another factor that reduces the reliability of the supporting strength. Further, since a flat member having a relatively large area is required to form the base by folding the central portion of the flat member, the amount of material used per piece is wasted. In this way, the structure of the conventional sash frame fixing metal fitting must be said to be an irrational structure in terms of strength maintenance, workability, manufacturing cost and material cost.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a sash frame fixing fitting having a rational structure which is excellent in functionality, productivity and cost.

[0005]

A sash frame fixing metal fitting according to the present invention made to solve the above-mentioned problems is constructed by a flat member made of metal cut into the same shape in which a plurality of units are connected without a gap, and is constructed. Connection parts for holding the sash frame are formed on both left and right sides of the base part fixed to the anchor fixed to the opening of the outer wall of the article, and the connection parts are the inner left and right inner surfaces of the bag part provided on the back surface of the sash frame. And a sandwiching structure for sandwiching an inward convex edge provided on the inner side surface of the bag portion, and the inward convex edge fits the notch formed in the side edge of the flat member by the sandwiching structure. It is characterized in that it is a whole holding groove.

The unit of a plurality of units refers to each flat member serving as the sash frame fixing fitting according to the present invention. Connecting without a gap means a state in which the jigsaw puzzle engages in a single direction or in multiple directions. Here, the connecting portion refers to a portion over the entire length of the holding groove or the vicinity thereof. It is also possible to have a structure in which the connecting part is wound in the front and back direction of the flat member, or a structure in which the intermediate part of the connecting part is bent 90 degrees with respect to the base in the front and back direction of the flat member, Furthermore, it is also possible to adopt a structure in which the connecting portions formed on both the left and right sides of the base portion are bent in opposite directions (including the concept of bending and winding. The same applies hereinafter). The holding groove may have a meandering shape. The meandering shape means that the edge of the holding groove is wavy. As a result, the inner wall of the sandwiching groove also has a undulating structure following the wave.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a sash frame fixing fitting according to the present invention will be described below with reference to the drawings. In the embodiment shown in FIG. 1, an iron flat member 1 coated with rust-proof plating is
It is formed by bending the front and back sides into an S shape.
As shown in FIG. 4, the flat member 1 is cut into a shape in which a plurality of units are connected together without any gaps and does not leave a surplus portion during cutting, and is provided with a W-shaped base portion 3 in the center thereof. . The length (width) a in the connecting direction is uniform over the entire length so that sufficient load bearing capacity can be obtained, and there is a gap between the concave portion and the convex portion formed by the edges on the connecting side. They are shaped so that they fit together.

The base portion 3 having the concave portion and the convex portion is a portion fixed to the anchor 2 fixed to the opening of the outer wall of the building, and is fixed to the anchor 2 protruding in the vertical direction as shown in FIG. In the case of welding, the width of the flat member 1 including the central portion 9 which is the welding location is the anchor 2 protruding in the vertical direction.
It is necessary to set the width so that a sufficient welding length can be secured. Further, the two convex portions 10, 10 formed on the flat member 1 as the W-shaped lower portion form a valley portion 11 therebetween, but the inner edge of the valley portion 11 is a circle that follows the cross-sectional shape of the anchor 2. With the circumferential shape, when the sash frame fixing metal fitting is welded to the horizontally arranged anchor 2 as shown in FIG. 3B, the seating and welding property of the sash frame fixing metal fitting to the anchor 2 is enhanced. be able to.

Connection parts 5 for holding the sash frame 4 are formed on the left and right sides of the base part 3, respectively. The connecting portion 5 is provided with an elongated cutout portion 13 (see FIG. 4) which is curved and meandered from the side edge of the flat member 1 toward the base portion 3,
Further, it is formed by bending the forked portion 12 sandwiching the cutout portion at 90 degrees with respect to the base portion 3 in opposite directions of the flat member 1 at a position corresponding to the longitudinal middle portion of the cutout portion 13. . With such a structure, the connecting portion 5 of the embodiment has a strut structure for pressing the left and right inner side surfaces of the bag portion 6 provided on the back surface of the sash frame 4 as shown in FIGS. A sandwiching structure that sandwiches the inward convex edges 7 provided on the lower left and right inner side surfaces is configured.

The strut structure promotes the inherent elasticity of the flat member 1 by the bending, thereby not only facilitating the attachment but also deriving a locking function, and by bending, either the front side or the back side of the forked portion 12 can be obtained. Has a large area and contacts the left and right inner side surfaces of the bag portion 6 of the sash frame 4,
The effect of stabilizing the mounting posture of the sash frame fixing bracket is also derived.

In the sandwiching structure, the meandering notch 13 extending from the side edge of the flat member 1 toward the base 3 is used as the sandwiching groove 8, and the forked portion 12 sandwiching the sandwiching groove 8 is bent as described above. A step is created in the holding space of the holding groove 8 and not only a reliable holding action utilizing the twist of the flat member 1 is generated but also the inward convex edge 7 of the sash frame 4 is held by the presence of the R portion at the bent portion. Since it is suitably guided into the groove 8, the mounting on the sash frame 4 becomes easy. In particular,
In the present embodiment, as shown in FIG. 1, the flat member 1 is bent and formed into an S shape, so that the sash frame fixing metal fittings are attached to the sash frame fixing metal fittings at any position in the longitudinal direction of the sash frame 4 as shown in FIG. By rotating the connecting portion 5 in the direction opposite to the bending direction as shown in (b), the inward convex edge 7 and the bifurcated portion 12 can be easily meshed with each other.

When the sash frame fixing metal fitting is constructed,
That is, the flat member 1 is most preferably bent in the S shape when the flat member 1 is formed with the base portion 3 and the connecting portion 5, but it is indispensable to bend the flat member 1 linearly or at a right angle. Alternatively, a structure (see FIG. 5) having a roll-shaped connecting portion 5 formed by curving the end portion of the flat member 1 in a curvilinear manner may be adopted, or the bifurcated portion 12 may be provided with the notch portion 13 as shown in FIG. Alternatively, the flat member 1 may be formed into a U-shape by bending at 90 degrees in the same direction as the front and back sides of the flat member 1 at a position corresponding to the intermediate portion in the longitudinal direction. Further, the shape of the holding groove 8 may be any meandering shape as long as the flat member 1 is partially or entirely twisted by being attached to the sash frame 4, and may be linear or curved. Alternatively, the groove width may be uniform or non-uniform.

[0013]

As described above, since the sash frame fixing metal fitting according to the present invention has a form in which the flat member is used upright, the thickness of the flat member is more load-bearing than the flat member is used. Does not significantly affect Therefore, it becomes relatively easy to set the thickness of the flat member to be relatively thin for the purpose of improving workability or reducing the material cost. In addition, since the part to be clamped is formed by bending in the horizontal direction orthogonal to the supporting direction, not only the function as a rib can be added to increase the load resistance but also the flat member By utilizing the elasticity caused by bending in the direction, it is possible to suitably obtain the tensioning effect of pressing the left and right inner side surfaces of the bag portion of the sash frame, and at the same time, obtain the loosening prevention effect. Moreover, since either the front surface or the back surface of the flat member can be used as it is as a base portion for welding an anchor of a building, a sufficient welding length can be obtained with a flat member having a relatively small area. Furthermore, by forming the holding groove in a meandering shape, it is possible to obtain a suitable holding force using the twist of the flat member. As described above, the sash frame fixing fitting according to the present invention can be expected to have a remarkable practical effect in the field of construction due to its rational structure excellent in functionality, productivity and cost.

[Brief description of drawings]

1 (a) and (b) are schematic explanatory views showing an example of a sash frame fixing metal fitting according to the present invention as seen from the front and the bottom.

2 (a) and (b) are schematic explanatory views showing an example of a sash frame fixing metal fitting according to the present invention as seen from the front and the bottom.

3 (a) and (b) are schematic explanatory views showing an example of an embodiment of the sash frame fixing fitting according to the present invention.

FIG. 4 is a schematic explanatory view showing an example of a connected state of flat members constituting the sash frame fixing fitting according to the present invention.

5 (a) and (b) are schematic explanatory views showing an example of a sash frame fixing metal fitting according to the present invention as seen from the front and the lower side.

6 (a) and (b) are schematic explanatory views showing an example of a conventional sash frame fixing bracket as seen from the front and the lower side.

[Explanation of symbols]

1 flat member 2 anchor 3 base 4 sash frames 5 connection 6 bags 7 Inward convex edge 8 clamping groove 13 Notch

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E06B 1/60

Claims (4)

(57) [Claims] 1. A base (3) comprising a flat metal member (1) cut into the same shape in which a plurality of units are connected without a gap, and fixed to an anchor (2) fixed to an opening of an outer wall of a building. ) Are formed on both left and right sides of the sash frame (4) to hold the sash frame (4), and the connection part (5) is located inside the bag part (6) provided on the back surface of the sash frame (4). It comprises a strut structure for pressing the side surface and a sandwiching structure sandwiching an inward convex edge (7) provided on the inner side surface of the bag portion (6), and the sandwiching structure is formed on a side edge of the flat member (1). The notch (13) is formed as a holding groove (8 ) into which the inward convex edge (7) is fitted.
And the connecting portion (5) is on the front and back of the flat member (1).
Wound to the direction was sashes frame fixing bracket. 2. A base (3) fixed to an anchor (2) fixed to an opening of an outer wall of a building, which comprises a flat metal member (1) cut into the same shape in which a plurality of units are connected without a gap. ) Are formed on both left and right sides of the sash frame (4) to hold the sash frame (4), and the connection part (5) is located inside the bag part (6) provided on the back surface of the sash frame (4). It comprises a strut structure for pressing the side surface and a sandwiching structure sandwiching an inward convex edge (7) provided on the inner side surface of the bag portion (6), and the sandwiching structure is formed on a side edge of the flat member (1). The notch (13) is formed as a holding groove (8 ) into which the inward convex edge (7) is fitted.
And the intermediate portion of the connecting portion (5) is the flat member (1).
It is bent 90 degrees to the base (3) in the front and back direction.
It was sashes frame fixing bracket. 3. The connecting parts (5) formed on the left and right sides of the base part (3) are bent in opposite directions.
The sash frame fixing metal fitting according to claim 1 or 2 . 4. The holding groove (8) has a meandering shape.
The sash frame fixing metal fitting according to any one of claims 1, 2 and 3 .