JPH08128281A - Opening frame structure - Google Patents

Abstract

PURPOSE: To simplify the precut work in the manufacture of a precut frame member for opening frame structure, and improve the product yield. CONSTITUTION: In an opening frame structure formed of an upper frame 1 and vertical frame 2 having door stop grooves on the inner surfaces and casing grooves 3, 4 on the side surfaces, the inside collar part 1a is cut in both end parts of the upper frame 1 by the thickness dimension of the vertical frame 2 to form a notched part. The butt end of the vertical frame 2 is fitted to the notch part to butt and connect the upper frame 1 to the vertical frame 2, whereby the casing grooves 3, 4 of the upper frame 1 and the vertical frame 2 are allowed to communicate each other in the butt connected part.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening frame structure, and more particularly to an opening frame structure using an upper frame and a vertical frame precut frame member having a door stop groove on an inner surface and a casing groove on a side surface.

[0002]

2. Description of the Related Art Conventionally, when attaching an opening frame to the inside of an opening, a frame material is processed at each site to attach the opening frame. In this case, the frame member is adjusted in its width dimension according to the wall thickness, then the joining process is performed at the abutting portion of the vertical frame and the upper frame, and the door stop member is fixed to the inner surface. Field work was required.

With the spread of industrialized houses (prefabricated houses, 2 × 4 houses) in recent years, construction using standardized members has become widespread, and so-called precut frame materials precut in factories are also used for frame materials. Is becoming. The opening frame structure using the pre-cut frame material is formed by abutting and joining a vertical frame and an upper frame having a door contact groove on the inner surface and a casing groove on the side surface, and a door contact member is fitted in the door contact groove to fit in the casing groove. A casing that can be adjusted according to the wall thickness is inserted.

An example of an opening frame structure using such a pre-cut frame material is disclosed in Japanese Utility Model Publication No. 6-27747. In this opening frame structure, a notch (A) having a predetermined height and width is formed in advance in the vertical frame, and a notch (B) having a predetermined height and width is also formed in the upper frame. Therefore, when the upper frame and the vertical frame are butt-joined to each other in the field, the α portion is cut at the butt-joining portion so that the casing grooves of the upper frame and the vertical frame communicate with each other. This eliminates the trouble (see FIG. 4 of the same publication).

[0005]

However, in the above-mentioned opening frame structure, it is necessary to form a notch having a predetermined size in both the upper frame and the vertical frame, which is a labor-intensive process. If the dimensions are not matched with each other, it becomes difficult or impossible to fit the casing at the butt joint, and thus high processing accuracy is required, which leaves a problem in terms of product yield.

[0006]

SUMMARY OF THE INVENTION The present invention was devised with the object of solving the problems of the prior art described above, and an upper frame having a door stop groove on the inner surface and a casing groove on the side surface and In the opening frame structure consisting of vertical frames,
At both ends of the upper frame, the inner brim is cut out by the thickness dimension of the vertical frame to form a notch, and the notch end of the vertical frame is fitted into the notch so that the upper frame and the vertical frame are butted. It is characterized in that the casing grooves of the upper frame and the vertical frame are made to communicate with each other at the butt joint by joining.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an opening frame structure according to the present invention will be described with reference to the accompanying drawings. The upper frame 1 and the vertical frame 2 constituting this opening frame structure are both plywood and medium density fiberboard ( MDF), hard fiber board, particle board, flake board, oriented strand board, stick board, laminated veneer, laminated wood, etc. can be provided as a single substrate or as a composite plate in which any layers are laminated. The entire surface of the single substrate or the laminated plate or the surface portion exposed on the surface side after the construction, decorative paper, decorative impregnated paper, synthetic resin sheet,
A decorative material such as a decorative veneer may be attached.

Door stop grooves (not shown) are formed on the inner surfaces of the upper frame 1 and the vertical frame 2, and casing grooves 3 and 4 are formed on their side surfaces. The casing grooves 3 and 4 are formed on both side surfaces or one side surface of the upper frame 1 and the vertical frame 2 as necessary.

At both ends of the upper frame 1, notches 5 are formed by cutting the inner (lower) flange 1a by the thickness of the vertical frame 2 (FIG. 2). The portion indicated by the broken line in FIG. 2 is a cut portion.

The door contact grooves and casing grooves 3 and 4 formed in the upper frame 1 and the vertical frame 2, and the notches 5 formed at both ends of the upper frame 1 are provided by a cutting device such as a moulder or a tenor. Pre-cut at the factory using.

In this way, the upper frame 1 in which the inner surface door contact groove, the side surface casing groove 3 and the notches at both ends are formed in advance, and the inner surface door contact groove and the side surface casing groove 4 are formed in advance. The opening frame structure is formed by butt-joining the formed vertical frame 2, but this butt-joining is performed by fitting the wood end of the vertical frame 2 into the cutout portion 5 of the upper frame 1, The upper frame 1 and the vertical frame 2 are joined and fixed by driving a fixture (not shown) such as a nail or a screw from above the upper frame 1 to the end of the vertical frame 2 at the mouth end.

In the obtained opening frame structure, as is apparent from FIG. 1, the casing groove 3 and the vertical frame 2 on the side surface of the upper frame 1 are formed.
A casing (not shown) connected to the casing groove 4 on the side surface of the casing through a butt joint, and connected by a butt joint or cutting the tip at 45 degrees and a joint joint. Can be inserted into. As is well known, a door-stop member (not shown) is fitted in the door-stop groove on the inner surfaces of the upper frame 1 and the vertical frame 2.

[0013]

According to the opening frame structure of the present invention, since the notch portion is formed in only one side of the precut frame material, the casing grooves on the side surfaces can be communicated with each other at the butt joint portion, so that the precut work can be performed. It's done easily and quickly.

[Brief description of drawings]

FIG. 1 is a partial perspective view showing an opening frame structure according to an embodiment of the present invention.

FIG. 2 is a partial perspective view showing a state in which a notch portion of an upper frame used in the opening frame structure of FIG. 1 is formed.

[Explanation of symbols]

 1 Upper Frame 1a Inner Collar of Upper Frame 2 Vertical Frame 3 Casing Groove 4 Casing Groove 5 Notch

Claims (1)

[Claims] 1. In an opening frame structure comprising an upper frame and a vertical frame having a door stop groove on an inner surface and a casing groove on a side surface, an inner flange portion is cut off at both end portions of the upper frame by a thickness dimension of the vertical frame. To form a cutout portion, and fit the notch end of the vertical frame into the cutout portion to join the upper frame and the vertical frame to each other by butt-joining the casing grooves of the upper frame and the vertical frame to each other. An open frame structure characterized by being communicated with each other.