JPS6349481Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a heat insulating window frame formed by vertical and horizontal frames formed by forming heat insulating parts of synthetic resin on the inner periphery of a metal frame.

2. Description of the Related Art In recent years, heat-insulating window frames made of aluminum sash and other window frames have been considered to have a structure that combines metal members and synthetic resin materials for the purpose of heat-insulating and preventing condensation. However, when constructing a frame by joining vertical and horizontal frames such as aluminum sash at their ends, if the synthetic resins come into contact with each other, the joint strength will be weakened, so the contact parts of the synthetic resin must be removed. When the frame and the synthetic resin heat insulating part are integrally molded, the above-mentioned cutting process requires a great deal of effort, and the frame assembly work becomes extremely complicated.

The present invention has been developed in view of the above points, and the vertical and horizontal frames, which form synthetic resin heat insulating parts on the inner periphery of the metal frame, have a combination of integrated molding and separate attachments, thereby providing heat insulation and dew condensation. To propose a heat insulating window frame which enables easy production of a frame body adopting a preventive structure and also facilitates the process of cutting out the heat insulating parts at the end joints to facilitate frame assembly work. It is something.

An embodiment of the present invention shown in the drawings will be described in detail below. FIG. 1 is a longitudinal sectional view of the heat insulating window frame of this embodiment, FIG. 2 is a cross sectional view of FIG. 1, and FIG. 3 is a front view of the frame assembly.

In each of the above figures, the heat insulating window frame of this embodiment is formed by forming a synthetic resin heat insulating part 3 on the inner periphery of a metal frame 2, and either the horizontal frame 1A or the vertical frame 1B is The metal frame 2 and the synthetic resin heat insulating part 3 are integrally molded, and the other frame is configured such that the vertical heating part 3 is formed separately from the metal frame 2 and attached thereto. Become.

In the embodiment, the horizontal frame 1A is formed by integrally molding the metal frame 2 and the heat insulating part 3 made of synthetic resin, and the vertical frame 1B is formed by forming the heat insulating part 3 separately from the metal frame 2. It is formed on the body and attached thereto.

Each vertical and horizontal metal frame 2 is formed by providing a web 4 on the inside of an outer surface plate having an arbitrary cross-sectional shape and forming a hollow part 5 between them, and a groove part 6 is formed further inside this web 4. It will be done. This groove part 6
A heat insulating part 3 made of synthetic resin is provided in each of the parts. By forming a hollow portion 5 in the metal frame 2, the strength of the member against bending, twisting, etc. is improved.

Each metal frame 2 is provided with mounting pieces 7, 7 that protrude vertically or horizontally, respectively, on the indoor side. From this mounting piece 7, insert the screw 12 into the building 2.
0. In addition, the mounting piece 7 of the lower horizontal frame 1A is
It has an L-shaped bend toward the indoor side.

The metal frame 2 described above is molded separately from the heat insulating part 3, and is mainly extruded from metal such as aluminum.

Next, the heat insulating part 3 provided inside the metal frame 2 has a rectangular cross-sectional shape so as to be provided in the groove part 6 of the metal frame 2, and the rectangular cross-sectional part has a hollow part 9.
is provided to improve the strength of the member. Each heat insulating section 3 has a partition protrusion 11 formed approximately at the center of its inner side, and a covering section 10 that covers the surface of the attachment piece 7 of the metal frame 2 on the indoor side. An airtight material 17 can be attached to each of the partition protrusions 11.

The above-described heat insulating section 3 includes an upper horizontal frame 1A and a left vertical frame 1B.
The lower horizontal frame 1A is formed with a cross-sectional shape that substantially matches the entire groove 6, the lower horizontal frame 1A is formed separately into an indoor side part 3A and an outdoor side part 3B, and the right vertical frame 1B is formed with a cross-sectional shape that substantially matches the entire groove part 6. It is arranged only on the indoor side of the inner shoji 21 that serves as a doorstop. By not providing the insulation part 3 on the outdoor side,
The heat insulating part 3 is prevented from being adversely affected by solar heat when the outer shoji 21 is closed.

The above-mentioned heat insulating part 3 and metal frame 2 are provided with engaging parts 8, 8 that engage unevenly at appropriate places on the abutting surfaces, and locking protrusions 13 are provided on the surface of the heat insulating part 3 from the metal frame 2. The engaging portion 8 and the locking protrusion 13 allow the metal frame 2 and the heat insulating portion 3 to be firmly joined. Note that the vertical frame 1B is not provided with the engaging portion 8.

The heat insulating portion 3 is extruded from a synthetic resin such as vinyl chloride resin or acrylic resin. Among them, the insulation part 3 of the horizontal frame 1A, 1A
is formed integrally with the metal frame 2 by inserting the metal frame 2, which has been extruded in advance, into a synthetic resin composite extruder and extruding the composite resin material. That is, the heat insulating part 3 is connected to the metal frame 2 at the same time as resin molding, thereby facilitating molding. In addition, lower horizontal frame 1A
Even in the case where the heat insulating parts 3A and 3B are separated, they are integrally molded as described above. Further, the heat insulating portions 3 of the vertical frames 1B, 1B are extrusion molded separately from the metal frames 2, and are attached to the groove portions 6 of each metal frame 2 after molding. That is, by slidingly fitting into the groove 6 from the longitudinal direction,
Attachment is performed by engaging elastically or by screwing after installation. As shown in FIG. 3, the heat insulating part 3 for the vertical frame 1B is made in a slightly shorter size than the metal frame 2 so as to leave contact parts 14, 14 at the upper and lower ends of the metal frame 2. Form. When attaching this heat insulating part 3, the above-mentioned locking protrusion 13
This allows for a strong connection between the two. Of course, without using the locking protrusion 13, it is also possible to attach it using an adhesive.

As mentioned above, the horizontal frames 1A and 1A are integrally molded with the metal frame 2 and the heat insulating part 3, and the vertical frame 1B is separately molded.
1B and is framed as shown in Figure 3.

First, each end of the horizontal frames 1A, 1A with the end surfaces of the metal frame 2 and the heat insulating part 3 flush with each other is connected to the vertical frames 1B, 1B.
The screws 16 are screwed into the screw holes 15 from the metal frame 2 of the vertical frame 1B to form a frame.

The contact portions 14, 14 are connected in advance to the upper and lower horizontal frames 1A,
The height at which 1A comes into contact with each other, that is, the horizontal frame 1A
By adjusting the height and width to substantially match the height and width, it becomes unnecessary to cut the end of the vertical frame side heat insulating part 3 at the time of installation. To do this, a heat insulating part 3 made short by an appropriate dimension is attached to a predetermined position of the vertical frame side metal frame 2, and at the same time, a contact part 14 of a predetermined size is attached to the upper and lower ends. 14 is preferably formed.
On the other hand, since it is sufficient for the upper and lower horizontal frames 1A, 1A to have their abutting portions flush with each other, the complicated work of notching only the integrally molded heat insulating portion 3 can be avoided. In addition, the left and right vertical frames 1B, 1B are integrally molded,
The upper and lower horizontal frames 1A, 1A can also be molded separately.

As described above, the present invention has a structure in which the end face of an integrally molded frame abuts the inner surface of the other frame, and the heat insulating part of the other frame is formed short and abuts against the inner face of the heat insulating part of the integrally molded frame. Since the end face of the heat insulating part comes into contact with the inner surface of the heat insulating part of the other frame, the heat insulating effect is further improved, and the metal frames can be directly screwed together to form a strong frame. effective.

In addition, the frame that forms the short heat insulating part can be formed very easily because the heat insulating part is attached separately, and the frame that is simply cut at right angles is integrally molded. This has the effect of making it easier to cut the parts at once.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of the heat insulating window frame of the present invention, FIG. 2 is a cross sectional view of FIG. 1, and FIG. 3 is an assembled front view of the window frame. DESCRIPTION OF SYMBOLS 1... Vertical and horizontal frames, 2... Metal frame, 3... Heat insulation part, 4... Web, 5, 9... Hollow part, 6... Concave groove part, 7... Mounting piece, 8... Engaging part , 10... Covering part, 11... Partition protrusion, 12, 16... Screw,
13... Locking protrusion, 14... Contact portion.

Claims (1)

[Scope of Claim for Utility Model Registration] A heat insulating window frame characterized by having a synthetic resin heat insulating part formed on the inner periphery of a metal frame and meeting the following requirements. (a) Either the horizontal frame or the vertical frame shall be integrally molded with a metal frame and a synthetic resin heat insulating part. (b) For the other of the above frames, a heat insulating section shall be formed separately from the metal frame and attached thereto. (c) The end face of one of the frames shall be perpendicular to the longitudinal direction, and the frame shall be in contact with the inner surface of the metal frame of the other frame. (d) The heat insulating part of the other frame is formed to be shorter than the metal frame, and comes into contact with the inner surface of the heat insulating part of the one frame.