JPS645028Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a door panel constructed of an inner frame and covered with surface materials on the front and back surfaces of the door panel.

Conventionally, in door panels that are framed by an inner frame and have surface materials attached to the front and back surfaces, one end of the surface material is hooked to the front inner frame, and the inner surface is pasted to the inner frame with adhesive. However, since there is no mechanical locking structure for the surface material to the inner frame on the hinge side, the pressure on that part is weak, and the surface material tends to peel off easily. Furthermore, since the inner edge that covers the end face on the hinge side is attached by simply screwing its lower ends, the vertically elongated inner edge is bent, and the middle part tends to float up.

In view of the above-mentioned drawbacks of conventional door panels, the present invention forms an inwardly bent locking part at the hinge side end of the front and back surface materials, and the inner frame on the hinge side has a flat side edge part. A surface material locking member comprising a leaf spring whose intermediate portion is curved outward and a pressing member for the curved portion is attached, and the curved locking portion of the surface material is pressed by the pressing member. By being locked at the side edge of the leaf spring that warps,
Not only can the edge of the surface material on the hinge side be securely locked to the inner frame to prevent peeling of the surface material, but also the inner edge can be glued to the surface material locking member attached to the inner frame on the hinge side. Therefore, it is an object of the present invention to provide a door panel whose bending and intermediate portion can be prevented from floating.

The structure of the present invention will be explained with reference to an embodiment shown in the drawings. 1 is an inner frame on the front side, 2 is an inner frame on the hinge side,
These inner frames 1 and 2 form the framework of the door panel. Reference numerals 3 and 4 denote a pair of front and back surface materials. A bent locking portion 5 is formed at one end of these surface materials 3 and 4, and is locked to an outward flange of the inner frame 1 on the front side. In addition, on the other side ends of the pair of front and back surface materials 3 and 4,
An inward bent locking portion 6 is formed, and its bent end is adapted to abut against the inner frame 2 on the hinge side. Reference numeral 7 denotes a surface material locking member, and this surface material locking member 7 is composed of a pressing member that abuts from the outside by a leaf spring 8 and a tightening screw 10, and is secured to the inner frame 2. Installed. The plate spring 8 has a horizontal cross section of
The middle part 8b of the flat side edge part 8a is formed to bulge outward and curve, and when pressed by the presser member 9, the side edge part 8 bends outward while maintaining the bending angle. It has a curved shape and is dimensioned such that its side edge portion 8a intervenes in the bending locking portion 6 of the pair of front and back surface materials 3 and 4 in the pressed and installed state. The holding member 9 has a width slightly smaller than the width between the pair of bending locking portions 6 on the front and back sides. A suitable number of surface material locking members 7 are mounted at the upper and lower ends of the inner frame 2 on the hinge side and in the middle thereof by combining the above-mentioned members, and the inner frame 2 on the hinge side has a surface material locking member 7 at the mounting position. A screw hole is drilled. 11 is an inner edge, and the inner edge 11
covers the end face of the inner frame 2 on the hinge side, and is attached to the presser member 9 of the surface material locking member 7 mounted above and below with a double-sided adhesive tape 12. Note that a core material 13 or the like is interposed as a core material in the hollow portion covered by the pair of front and back surface materials 3 and 4.

The assembly process of the door panel constructed as described above is as follows.

First, one end of one surface member 3 is hooked onto the front inner frame 1 by hooking its bent locking portion 5 as shown by the imaginary line, and the other end of the surface member 3 is secured to the inner frame 1 on the front side as shown by the imaginary line. It is brought into contact with the inner frame 2 on the side. Then, adhesive is applied to the inner surface of the surface material 3, and the core material 13 is interposed inside. Next, apply adhesive to the inner surface of the other surface member 4, hook one end of it to the inner frame 1 on the front side, and hook the other end to the inner frame 2 on the hinge side.
comes into contact with. Next, a plurality of surface material locking members 7 are attached to predetermined locations, and the hinge side ends of the pair of front and back surface materials 3 and 4 are locked and fixed to the inner frame 2.
That is, when the clamping screw 10 of the surface material locking member 7 is tightened and the pressing member 9 presses the leaf spring 8, the curved intermediate portion 8b of the leaf spring 8 is flattened and the side edge portion 8a thereof is folded. It curves outward while maintaining the bending angle, and its both ends intervene in the bending locking portions 6 of the pair of front and back surface materials 3 and 4, and the surface materials 3 and 4 are locked and fixed to the inner frame 2 on the hinge side. . in this way,
After the surface materials 3 and 4 are locked and fixed by the surface material locking member 7, the inner surfaces of the surface materials 3 and 4 are bonded and fixed using a hot press (heating and pressing device). The inner edge 11 is then attached to complete the door panel assembly process.

In the door panel assembled as described above, the hinge side ends of the facing materials 3 and 4 are locked by the leaf springs 8 of the facing material locking member 7, and the locking of the leaf springs 8 is limited to the side edges thereof. When the portion 8a is pressed by the holding member 9, it curves outward and locks, so that the locking and fixing state is reliable and strong. Therefore, the surface materials 3 and 4 do not peel off, and even if heat is applied, they do not easily deform or fall off, so fire prevention performance is greatly improved. In addition, since the inner edge 11 is fixed to the inner frame 2 by the plurality of surface material locking members 7, it is possible to prevent the inner edge 11 from bending and from floating the intermediate portion.

In short, the present invention has an inner frame on the front side and the hinge side, and the other side end of the front and back surface materials, one end of which is fixed to the front inner frame, has an inward facing end. In addition to forming a bending locking part, the inner frame on the hinge side has a surface material retaining member that includes a leaf spring whose middle part of a flat side edge is curved outward, and a pressing member for the curved part. A retaining member is attached, and the bending retaining portion of the surface material is secured at the side edge of the leaf spring that bends when pressed by the presser member, so that the hinge side end of the surface material is securely attached to the inner surface. Not only can it be locked to the frame to prevent the surface material from peeling off, but the inner edge can also be bonded to the surface material locking member attached to the inner frame on the hinge side, preventing its deflection and lifting of the middle part. This has extremely practical effects, such as being able to prevent.

[Brief explanation of drawings]

The drawings show one embodiment of the door panel according to the present invention, in which FIG. 1 is an overall perspective view, FIG. 2 is an enlarged sectional view taken along line A-A in FIG. 1, and FIGS. 3 and 4. is a sectional view of the main part. 1, 2... Inner frame, 3, 4... Surface material,
5, 6...Bending locking portion, 7...Surface material locking member, 8...
Leaf spring, 8a...side edge, 8b...middle part, 9...pressing member, 10...tightening screw, 11...inner edge,
12...Double-sided adhesive tape, 13...Core material.

Claims (1)

[Scope of utility model registration request] The front side and the hinge side each have an inner frame, and the other side end of the pair of front and back surface materials whose one side end is locked to the front side inner frame is formed with an inward bending locking part. , a surface material locking member is attached to the inner frame on the hinge side, and includes a leaf spring having a flat side edge whose intermediate portion is curved outward, and a pressing member for the curved portion; The door panel is characterized in that the bending locking portion of the surface material is locked at a side edge of a leaf spring that bends when pressed by a holding member.