JPH077514Y2 - Door frame coupling device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a device for connecting door frames that constitute a door of a unit bath or the like.

[Conventional technology]

Doors used for unit baths, etc. are required to have functions such as waterproofness, moisture resistance, and heat insulation. Therefore, panels are stretched on both sides of the door frame, and foamed urethane etc. are filled inside. .

Conventionally, in the door frame connecting structure in the door as described above, the ends of the molds constituting the door frame are butted at right angles, and the butted parts are joined by screwing.

[Problems to be solved by the device]

However, the screw connection has a problem that not only the assembly strength is weak, but also the assembly work takes time and labor and the screw head is exposed to the outside, so that the airtightness and the moisture proofness inside the door are deteriorated.

In order to solve the above problems, the purpose of the present invention is to make it possible to assemble the door frame easily and efficiently, and to construct a door frame having excellent bonding strength, high airtightness and high moisture resistance. The present invention is to provide a coupling device.

[Means for Solving the Problems]

In order to solve the above-mentioned problems, the present invention relates to a door frame constituting mold member having a sectional shape in which panel supporting walls are provided on both sides of a substrate and an insertion supporting portion of the door frame constituting mold member, which are connected to each other at a right angle. It consists of a corner joint for connecting
Two supports that have a width that fits the insertion support part of the corner joint between the panel support walls of the door frame constituent mold material, and has a slit for inserting and holding the substrate of the door frame constituent mold material between the facing surfaces. A plate is formed, and a cut-out prevention piece is provided at a portion to be inserted into a slit between the support plates in the substrate of the door frame constituent mold material, and a retaining piece engagement hole is provided in one support plate in the insertion support portion of the corner joint. It is configured.

[Action]

When pushing the substrate of the mold material into the slits in both insertion support parts of the corner joint, forcing it to pass the retaining piece between the support plates, and letting it face the engaging hole, the retaining piece is restored by its own elasticity. , Engage in the retaining direction in the engaging hole.

Therefore, the mold members inserted into both the insertion portions are joined at right angles by the corner joints, and the door frame is assembled.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a door 1 for a unit bath, in which four mold members 2 are frame-joined by a corner joint 3 to form a door frame 4, and a panel made of synthetic resin or the like is formed on both sides of the door frame 4. 5 is stretched, and the inner space between the panels 5 is filled with foamed urethane 6.

As shown in FIGS. 2 and 4, the mold member 2 is formed in a cross-sectional shape in which a pair of panel support walls 8 and 9 are provided on the inner surface side of the belt-shaped substrate 7 on both sides in the width direction, and is extruded using aluminum or the like. Has been done.

The outer support wall 9 is extended to the outer surface side of the substrate 7 so that the peripheral edge of the panel 5 is fitted between the support walls 8 and 9.

As shown in FIG. 2 and FIG. 3, the corner joint 3 is made of synthetic resin and is formed on the two adjacent surfaces of the square shaft portion 10 with the mold material 2.
Is formed by connecting the insertion support portions 11, 11 at right angles.

The insertion support portion 11 includes an inner support plate 12 having a width fitted between the support walls 8 located inside the substrate 7, and the substrate 7.
An outer support plate 13 having a width that fits between both side support walls 9 on the outer surface side of the pair, and a pair of slits 14 are formed between the opposing surfaces so as to form a slit 14 in which the board 7 fits. Rectangular plates 15 are formed at both ends of the corner portions of both outer support plates 13 and 13 which are arranged at a right angle so that the outer support walls 9 of the joined mold members 2 are flush with each other.

At the position where the end of the substrate 7 in the mold member 2 is to be inserted into the slit 14, the cut-and-raised stopper 16 is provided so as to be inclined upward inward from the end side with respect to the length direction of the substrate 7. .

Further, both insertion support parts 11 and 11 in the corner joint 3
The inner support plates 12, 12 are provided with engaging holes 18 for engaging the retaining pieces 17 in the retaining direction with the ends of the mold material 2 completely inserted into the slits 14.

Therefore, the insertion support parts 11, 11 on both sides of the corner joint 3 are
When the mold material 2 is inserted, both mold materials 2 and 2 are joined together through the joint 3 in a retaining manner, and a right-angled combination is formed.

In addition, as shown in FIGS. 2 and 4, a suitable mold member 2 among the four sides is provided with an injection hole 19 for foaming urethane 6 to be filled inside the door 1, and a check valve inside the injection hole 19. 20 is provided, and the check valve 20 automatically closes the injection hole 19 when the nozzle is removed after the injection of the urethane foam 6.

The coupling device of the present invention has the above-mentioned structure, and the door frame 4 is assembled by using the four mold members 2 and the four corner joints 3.

In order to join the mold materials 2 via the corner joints 3, as shown in FIG. 2, the end portions of the substrate 7 of the mold materials 2 are inserted into the slits 14 in the corner joints 3, and the cut-and-raised retaining pieces 17 are provided.
Is forcedly passed between the inner and outer support plates 12 and 13.

When the mold material 2 is pushed until its end reaches the inner end of the slit 14, the cut-and-raised piece 17 faces the engaging hole 18 as shown in FIG. Engage in the pulling direction.

As a result, the mold materials 2 are joined at a right angle, and both sides of the assembled door frame 4 are, as shown in FIG.
The panels 5 and 5 are stretched in a state where the periphery is fitted between the panel support walls 8 and 9.

When the urethane foam 6 is injected through the injection hole 19 into the door frame 4 in which the panels 5 and 5 are stretched, the door 1 as shown in FIG. 1 is completed.

〔effect〕

As described above, according to the present invention, it is possible to connect the mold members at right angles through the joints only by inserting the ends of the mold members into the corner joints, and the door frame can be assembled without using screws. The door frame can be easily and efficiently assembled, and the strength and sealing of the joint are improved, making it suitable for unit bath doors that require moisture resistance and heat insulation. Further, the insertion support portion of the corner joint is formed by two supporting plates provided with slits for inserting the substrate of the door frame constituent mold material between the facing surfaces, and the substrate is inserted into the slits to form the corner joint. Since the door frame component parts are connected at right angles, the board is sandwiched between the two support plates, the corner joint and door frame component parts are stable, and the door frame component parts are firmly connected at right angles. Can be done.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a door using a coupling device according to the present invention, FIG. 2 is an exploded perspective view of essential parts of the same, FIG. 3 is a longitudinal sectional view showing an assembled state of the same, and FIG. FIG. 1 ... Door, 2 ... Mold, 3 ... Corner joint, 4 ...
... door frame, 5 ... panel, 6 ... foaming urethane, 7 ... substrate, 8,9 ... panel support wall, 11 ... insertion support part, 12,
13 ... Support plate, 14 ... Slit, 17 ... Cut-and-raised retaining piece, 18 ... Engagement hole.

Claims (1)

[Scope of utility model registration request] 1. A corner joint for connecting a door frame constituting mold member having a cross-sectional shape having panel supporting walls on both sides of a substrate and an insertion supporting portion of the door frame constituting mold member at a right angle and connecting the mold members at a right angle. The insertion support portion of the corner joint has a width that fits between the panel support walls of the door frame constituent mold material, and a slit is provided between the facing surfaces for inserting and holding the substrate of the door frame constituent mold material. It is formed by a single support plate, and a cut-and-raised piece is provided at a portion to be inserted into the slit between the support plates of the substrate of the door frame constituting mold material, and a retaining piece is provided on one support plate in the insertion support portion of the corner joint. A door frame connecting device.