JPH0629343Y2 - Low floor type double floor panel support bracket - Google Patents

Description

[Detailed Description of Device] a. Purpose of the Invention [Industrial field of application] The present invention relates to a supporting leg fitting with adjustable support height, which is arranged on a floor panel used for forming a low floor type double floor with a small height of the underfloor space.

[Conventional technology]

In order to form a double floor on the floor of the building floor, a stationary floor panel with supporting metal fittings is used, and at that time, a female screw supporting cylinder member that is fixed in conformity with the through hole of the floor panel and this It is possible to adjust the floor panel support height from the upper surface of the double floor by using a supporting leg metal fitting made up of screwed male screw pedestals, for example, in Japanese Utility Model Laid-Open Nos. 59-30448 and 55-55.
It is conventionally known as shown in each of the publications of 9365 and 54-156420.

[Problems to be solved by the device]

As the conventional supporting leg fitting, as the female screw supporting cylinder member for screw-supporting the male screw pedestal, one in which the lower end of the female screw supporting cylinder is fitted and fixed in the fitting hole of the supporting plate which is face-fixed to the lower surface of the floor panel is used. The fitting and fixing is done by screwing the outer circumference of the lower end of the female screw support cylinder and the inner circumference of the support plate through hole, or by providing a flange on the lower end of the female screw support cylinder and engaging it with the peripheral edge of the lower end of the through hole to fix it by welding. When installing on the floor panel, the supporting leg fittings with this structure should minimize the size of the lower end of the supporting leg fittings protruding from the bottom surface of the floor panel, and thus limit the minimum supporting height of the male screw pedestal. It is possible to obtain a low floor type double floor.

However, in the above-mentioned fitting and fixing structure of the female screw support cylinder and the support plate, the screwing and fixing of screws has a small screwing range, resulting in insufficient fixing strength. There is a problem that the loosening stopper is easily broken by the turning force of the female screw support cylinder that occurs with the rotation of the screw pedestal for level adjustment of the floor panel, and unstable support is likely to occur. It is used only when embedded and fixed.On the other hand, when a flange is provided on the lower end of the female screw support cylinder to engage with the peripheral edge of the lower end of the fitting hole of the support plate, it is necessary to fix it by welding. However, there is a drawback that the female screw support cylinder is liable to be thermally strained, and it is difficult to screw the male screw pedestal.

B. Configuration of the Invention [Means for Solving the Problems] The present invention is to provide a female screw support cylinder in which a female screw support cylinder to which an externally threaded pedestal is screwed is erected on an upper surface of a receiving plate that is face-fixed to a lower surface of a floor panel. In order to obtain a female screw support cylinder member whose lower end does not excessively project to the lower surface of the floor panel, the above problem is solved by improving the connecting and fixing structure of the female screw support cylinder lower end and the fitting hole of the support plate. .

That is, the present invention provides a support plate which is fixedly attached to the lower surface of the floor panel by face-to-face contact, and a female screw support which is inserted and fixed at a lower end of the support plate into a through hole of a floor panel which is erected on the upper surface of the support plate. A low floor type double floor panel support leg fitting comprising a cylinder and a male screw pedestal that is screwed into the female screw support cylinder and projects below the floor panel, wherein the fitting hole of the support plate has no polygonal shape. The lower end of the support cylinder has a small diameter cylindrical end portion that is smaller in diameter than the upper portion thereof and inscribes in the polygonal fitting hole, and the small diameter cylindrical end portion is fitted into the fitting hole and A gist of a low floor type double floor panel supporting metal fitting is characterized in that a lower end peripheral edge slightly projecting downward is fixed by forming an expanding crimping edge so as to engage with a lower surface of a supporting plate. To do.

In the above, the support plate is fixed to the floor panel surface by a fixing means such as screwing, welding, welding or the like so as to reinforce the through hole drilled portion of the floor panel. The small diameter cylindrical portion at the lower end of the female screw supporting cylinder is internally fitted and inserted into a polygonal fitting hole formed in the support plate, and the end portion slightly protruding below the support plate is expanded outward. By opening and crimping, the upper peripheral edge of the fitting hole abuts against the lower surface of the large diameter portion of the support cylinder, the lower peripheral edge of the fitting hole abuts against the upper surface of the caulking edge, and the small diameter cylindrical end portion is fitted into the fitting hole. Is bulged and deformed so as to conform to the polygonal shape of the floor panel, and the corners of the floor panel are fixedly erected by engaging the corners of the floor panel so that they cannot rotate relative to each other. Has a size adapted to the thickness and the diameter of the through hole.

The male screw pedestal that is screwed into the female screw support cylinder has the lowest support height of the floor panel in the most screwed state where the stigma is aligned with the floor panel top surface, and the floor is reached by screwing out up to about half the effective screw part of the female screw support cylinder. It is the maximum supporting height of the panel. Therefore, the length of the male screw pedestal is determined by the thickness of the floor panel and the required height of the underfloor space. A turning groove is provided.

By caulking and fixing the thin support plate and the female screw supporting cylinder with a small thickness, while avoiding problems such as occurrence of thermal strain due to welding conventionally used, insufficient adhesion strength due to screwing,
It is possible to streamline the manufacturing process and obtain a stable and robust product.

[Action]

In the panel support leg fitting of the present invention, the female screw support cylinder standing on the upper surface of the support plate is located in the floor panel through hole and the support plate is fixed to the lower surface of the floor panel, and the lower end of the female screw support cylinder is attached to the lower surface of the support plate. Even if it protrudes, its height is small, so there is no limit on the minimum supporting height of the male screw pedestal, and an ultra-low floor type double floor whose floor space under the floor panel is 10 mm or less Can also be easily formed.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a side view showing a cross section of a main part when a floor panel having the panel supporting metal fittings of the present invention is laid on the floor base ground, and FIG. 2 is a plan view of the support plate, and FIG. The figure is a side view of the female screw support cylinder.

In the figure, reference numeral 1 is a supporting plate, which is a steel plate having a thickness of 2 mm and having a regular octagonal fitting hole 11 and a plurality of small holes 12 which also serve as screw holes as shown in FIG.

Reference numeral 2 denotes a female screw supporting cylinder having a female screw inner hole 23, the lower end of which is a small diameter cylindrical end portion 21 and the peripheral surface of the small diameter cylindrical end portion 21 is a regular octagonal fitting hole 11 of the support plate 1 as shown in FIG. It forms a cylindrical surface having an inscribed diameter, and the end portion 21 has a length of about 4 mm.

While inserting the small-diameter cylindrical end portion 21 of the female screw support cylinder 2 into the fitting hole 11 of the support plate 1 and projecting the lower end edge of the small-diameter cylindrical end portion 21 protruding from the lower surface of the support plate 1 to the outside. The lower surface of the support plate 1 is pressure-molded so as to be rolled and deformed to form a crimping edge 22 as shown in FIG. Set up.

A male screw pedestal 3 is screwed into the female screw supporting cylinder 2 and protrudes below the supporting plate 1 to form the panel supporting metal fitting of the present invention.

After applying an adhesive to the upper surface of the support plate 1 of the panel support leg fitting, the female screw support cylinder 2 is inserted into the through hole 41 of the floor panel 4 and the upper surface of the support plate 1 is bonded and fixed to the lower surface of the floor panel 4. By providing the support leg fittings at the four corners of the floor panel 4, a low floor type double floor laying panel can be obtained.

By fitting the small-diameter cylindrical end portion 21 of the female screw support cylinder 2 into the regular octagonal fitting hole 11 of the support plate 1 and connecting means by expansion caulking, the outer peripheral surface of the small-diameter cylindrical end portion 21 is fitted into the fitting hole 1.
Since it deforms to fit the octagonal shape of No. 1 and is firmly engaged with the lower surface of the receiving plate 1, sufficient strength to support the load on the upper surface of the supporting plate 1 on the floor panel 4 surface can be obtained, and at the same time, the floor panel can be obtained. 4. The male screw pedestal 3 can be stably and firmly supported by completely preventing the female screw support cylinder 2 from swinging with respect to a twisting external force during the rotation adjustment of the male screw pedestal 3 from the upper surface.

The small holes 12 formed in the support plate 1 can also be used for screw fixing depending on the material of the floor panel 4, but when an adhesive is used, excess adhesive flows in and solidifies to improve adhesive strength. Is what you can do.

Further, it is also possible to appropriately cover the lower end of the male screw pedestal 3 with an elastic rubber body so as to provide a cushioning property.

Further, after adjusting the level of the laid-down panel provided with the panel support metal fittings of the present invention, an adhesive may be injected into the female screw inner hole 22 on the head of the male screw pedestal 3 to prevent loosening. Since the adhesion release is troublesome, it is desirable to apply a locking means such as press-fitting an adhesive elastic body.

C. As described above, according to the present invention, a thin support plate is provided on the bottom surface of the floor panel, and a lower end portion of the female screw supporting cylinder slightly protruding from the support plate is present. A good supporting leg metal fitting that does not limit the height can be obtained, and by inserting the small diameter cylindrical end portion of the lower end of the female screw supporting cylinder into the polygonal fitting hole of the supporting plate and expanding and caulking and fixing, It is possible to obtain a low-floor type double-floor panel support leg fitting that has a practical effect such as stable and strong connection and excellent durability.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a side view showing a section of a panel support leg fitting of the present invention in use,
FIG. 2 is a plan view of the support plate, and FIG. 3 is a side view of the female screw support cylinder. DESCRIPTION OF SYMBOLS 1 ... Support plate, 2 ... Female screw support cylinder 3 ... Male screw pedestal, 4 ... Floor panel, 11 ... Fitting hole 21 ... Small diameter cylindrical end part, 22 ... Expansion caulking edge 41 ... Through hole, F ... Floor base

Claims (1)

[Scope of utility model registration request] 1. A support plate (1) fixed to a lower surface of a floor panel by an interview.
And a female screw support cylinder (2), the lower end of which is inserted and fixed in the fitting hole (11) of the support plate (1) and fitted into the through hole of the floor panel which is erected on the upper surface of the support plate (1), The female screw support cylinder (2)
Male screw pedestal (3) that is screwed into the bottom of the floor panel and projects downward
And a fitting hole (11) of the supporting plate (1) has no polygonal shape, and a lower end of the female screw supporting cylinder (2) has a smaller diameter than an upper part thereof. It has a small-diameter cylindrical end portion (21) inscribed in the polygonal fitting hole (11), and the small-diameter cylindrical end portion (21) is fitted into the fitting hole (11) to support plate (1). ) Is fixed by forming a wide swaging edge (22) so that the lower edge of the lower end of the bracket slightly engages with the lower surface of the support plate (1). Floor panel support metal fittings.