JPH0762838A - Floor panel fixing structure - Google Patents

Abstract

(57) [Abstract] [Purpose] Attach the female screw member to the floor panel easily and securely. [Structure] An upper portion of a cylindrical portion 12 of a panel receiver 11 is inserted from below into a circular through hole 2 formed in a floor panel 1. The flange 13 of the panel receiver 11 is brought into contact with the lower surface of the floor panel 1.
A plurality of slits are formed from the upper end of the cylindrical portion 12 of the panel receiver 11 to form free pieces 15 between the slits, and projections 16 for biting are provided on the outer surface of the free piece 15. A cylindrical female screw member 3 having a female screw on its inner surface is inserted from the opening at the lower end of the cylindrical portion 12 of the panel receiver 11 and driven into the cylindrical portion 12. The loose piece 15 is spread outward by the male screw member 3 so that the projection 16 bites into the inner surface of the through hole 2. The upper part of the adjusting bolt 7 whose lower end is grounded to the foundation floor 8 is screwed onto the female screw of the female screw member 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor panel fixing structure for supporting a floor panel on a foundation floor to construct a floating floor.

[0002]

2. Description of the Related Art Conventionally, as a fixing structure for this kind of floor panel, there are one disclosed in Japanese Utility Model Laid-Open No. 2-2937 and one disclosed in Japanese Utility Model Laid-Open No. 2-137432.
In Japanese Utility Model Laid-Open No. 2-2937, as shown in FIG. 4, a cylindrical nut body 3'is inserted from below into a circular through hole 2 formed in a floor panel 1 to be integrally provided with the nut body 3 '. The fixed plate 4 is brought into contact with the lower surface of the floor panel 1, the boss 5 provided on the fixed plate 4 is fitted into the recess 6 of the lower surface of the floor panel 1, and the fixed plate 4 is adhered to the lower surface of the floor panel 1 with an adhesive. is there. The lower end of the adjusting bolt 7 serving as a leg is grounded to the foundation floor surface 8, and the upper portion of the adjusting bolt 7 is screwed into the nut body 3 '.

According to Japanese Utility Model Laid-Open No. 2-137432, as shown in FIG. 5, a cylindrical fixing nut 3 "is press-fitted into a concave nut receiver 2" formed in a floor panel 1, and the fixing nut 3 "is attached to the outer periphery of the fixing nut 3". Rib 2 to prevent falling and rotation protruding in the vertical direction
The fixing nut 3 ″ is fixed by biting 0 into the inner surface of the nut receiver 2 ″. The lower end of the adjusting bolt 7 serving as a leg is grounded to the foundation floor surface 8, the upper part of the adjusting bolt 7 is screwed into the fixed nut 3 ″, and the spring 10 is provided between the fixed nut 3 ″ and the spring receiver 9. It is installed.

[0004]

However, in the former one of the above-mentioned conventional examples, in order to mount the nut body 3'in the through hole 2, the boss 5 of the fixing plate 4 is attached to the floor panel 1.
Since the fixing plate 4 must be fitted to the concave portion 6 and the fixing plate 4 is adhered to the lower surface of the floor panel 1, there is a problem that it takes time and effort to attach the nut body 3 '. Further, in the latter of the above-mentioned conventional examples, the fixing nut 3 ″ having the falling / rotation preventing rib 20 provided on the outer surface is forcibly pressed into the nut receiver 2 ″, so that it is difficult to press-fit the fixing nut 3 ″. After all, there is a problem that it takes time and effort to attach the fixing nut 3 ″.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a floor panel fixing structure capable of easily and reliably attaching a female screw member to a floor panel. is there.

[0006]

In order to achieve the above object, the floor panel fixing structure of the present invention has a circular through hole 2 formed in the floor panel 1 and a cylindrical portion 12 of a panel receiver 11 inserted from below. The collar portion 13 of the panel receiver 11 is brought into contact with the lower surface of the floor panel 1, and a plurality of slits 14 are formed in the upper portion of the cylindrical portion 12 of the panel receiver 11 from the upper end to form free pieces 15 between the slits 14. A cylindrical female screw member 3 having a protrusion 16 for biting on the outer surface of the loose piece 15 and a female screw 17 on the inner surface is inserted from the opening at the lower end of the cylindrical portion 12 of the panel receiver 11 and driven into the cylindrical portion 12. Then, the male screw member 3 is used to spread the loose piece 15 outward to form the protrusion 16 in the through hole 2.
It is characterized in that the upper part of the adjusting bolt 7 having its lower end grounded to the base floor 8 is screwed into the female screw 17 of the female screw member 3.

Further, a protruding edge 18 protruding inward is provided on the inner surface of the upper end of the loose piece 15 of the cylindrical portion 12 of the panel receiver 11 so that the upper end of the female screw member 3 driven into the cylindrical portion 12 hits the protruding edge 18. It is also preferable to be characterized in that

[0008]

According to the above construction, the upper portion of the cylindrical portion 12 of the panel receiver 11 is inserted from below into the through hole 2 of the floor panel 1, and the female screw member 3 is inserted into the cylindrical portion 12 from the lower end of the cylindrical portion 12 and driven therein. As a result, the loose piece 15 is widened so that the protrusion 16 can bite into the inner surface of the through hole 2 and the female screw member 3 can be tightly fixed in the cylindrical portion 12, and the female screw member 3 can be easily and firmly attached.

[0009]

Embodiments will be described in detail below with reference to embodiments shown in FIGS. The floor panel 1 is constructed on the foundation floor surface 8 in a floating floor type, and a plurality of floor panels 1 can be mounted on the foundation floor surface 8 with a predetermined interval. ing. Through holes 2 are formed at appropriate places on the floor panel 1 so as to penetrate vertically. The through holes 2 are formed at four corners of the floor panel 1, for example. The panel receiver 11 is provided on the outer periphery of the cylindrical portion 12 at a height position approximately in the vertical direction of the cylindrical portion 12 and at the collar 1
3 are integrally formed. The cylindrical portion 12 is formed so that the outer diameter is substantially the same as the inner diameter of the through hole 2. A plurality of slits 14 are provided in the upper part of the cylindrical portion 12 at equal intervals in the circumferential direction, and the slits 14 are formed downward from the upper end of the cylindrical portion 12. Due to the slits 14, a loose piece 15 is provided between the slits 14 on the upper portion of the cylindrical portion 12.
Has been formed. A plurality of protrusions 16 which are long in the circumferential direction are provided vertically on the outer surface of the loose piece 15, and the inner surface of the loose piece 15 is a tapered surface 2 which gradually protrudes inward from bottom to top.
It is 1. A projecting edge 18 projecting inward is provided at the upper end of the loose piece 15. The female screw member 3 is formed in a cylindrical shape having an outer diameter substantially the same as the inner diameter of the cylindrical portion 12, and a female screw 17 is formed on the inner surface of the female screw member 3 so as to extend vertically. Then, the upper portion of the cylindrical portion 12 of the panel receiver 11 is inserted into the through hole 2 from the lower surface side of the floor panel 1 and the collar portion 13 is formed.
To the lower surface of the floor panel 1, the female screw member 3 is inserted from the lower end opening of the cylindrical portion 12, and the lower end of the female screw member 3 is struck to press the female screw member 3 into the cylindrical portion 12 to mount the female screw member 3 on the floor panel. Attach to 1. By press fitting the female screw member 3,
The free piece 15 spreads outward, the protrusion 16 bites into the inner surface of the through hole 2, and the panel receiver 11 is fixed to the floor panel 1,
The outer surface of the female screw member 3 is fixed in close contact with the inner surface of the cylindrical portion 12. When the female screw member 3 is press-fitted, the upper end of the female screw member 3 hits the projecting edge 18 at the upper end of the loose piece 15, and the female screw member 3 is not press-fitted any more, and the female screw member 3 is accurately attached at a predetermined position. The upper part of the adjusting bolt 7 has an internal thread 17 of the internal thread member 3.
The pedestal 19 is rotatably attached to the lower end of the adjusting bolt 7, and the pedestal 19 is grounded to the foundation floor 8. Therefore, the height of the floor panel 1 can be freely adjusted by rotating the adjusting bolt 7. A driver groove is provided at the upper end of the adjusting bolt 7 as necessary, and a driver is inserted from the upper end of the through hole 2 so that the adjusting bolt 7 can be rotated by the driver.

[0010]

As described above, according to the present invention, the upper portion of the cylindrical portion of the panel receiver is inserted from below into the circular through hole formed in the floor panel, and the flange portion of the panel receiver is brought into contact with the lower surface of the floor panel. A cylindrical female screw member in which a plurality of slits are formed in the upper part of the cylindrical portion of the receiver from the upper end to form a free piece between the slits, a protrusion for biting is provided on the outer surface of the free piece, and an internal thread is bored on the inner surface. Is inserted from the opening at the lower end of the cylindrical part of the panel receiver and is driven into the cylindrical part, and the free piece is spread outward by the male screw member so that the protrusion bites into the inner surface of the through hole. Insert the upper part of the cylindrical part of the panel receiver into the hole from the bottom, insert the female screw member into the cylindrical part from the lower end of the cylindrical part and drive it in, so that the loose piece is spread and the protrusion is bited into the inner surface of the through hole and The female screw member can be tightly fixed to A is one in which the attachment of the female screw member can be easily and firmly.

According to the second aspect of the present invention, a projecting edge projecting inward is provided on the inner surface of the upper end of the free piece of the cylindrical portion of the panel receiver, and the female screw member is driven into the cylindrical portion. Since the upper end contacts the projecting edge, when the female screw member is press-fitted, the upper end of the female screw member contacts the projecting edge and stops, and the male screw member is accurately attached to a predetermined height.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a mounting state of the female screw member of the above.

FIG. 3 is a partially cutaway exploded perspective view showing the panel receiver and the female screw member of the above.

FIG. 4 is a sectional view showing a conventional example.

FIG. 5 is a partially cutaway sectional view showing another conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floor panel 2 Through hole 3 Female screw member 7 Adjustment bolt 8 Foundation floor surface 11 Panel receiver 12 Cylindrical part 13 Collar part 14 Slit 15 Free piece 16 Protrusion 17 Female screw 18 Projecting edge

Claims (2)

[Claims] 1. A circular through hole drilled in a floor panel is inserted through the upper portion of the cylindrical portion of the panel receiver from below, the flange portion of the panel receiver is brought into contact with the lower surface of the floor panel, and is attached to the upper portion of the cylindrical portion of the panel receiver. A plurality of slits are drilled from the upper end to form free pieces between the slits, a protrusion for biting is provided on the outer surface of the free piece, and a cylindrical female screw member having a female screw bored on the inner surface is provided in the cylindrical portion of the panel receiver. Insert it from the opening at the lower end and drive it into the cylindrical part, use a male screw member to spread the loose piece outward and let the protrusion bite into the inner surface of the through hole, and the lower end is grounded to the foundation floor surface. A floor panel fixing structure characterized by being screwed into a female screw of a member. 2. A protruding edge that projects inward is provided on the inner surface of the upper end of the free piece of the cylindrical portion of the panel receiver, and the upper end of the female screw member that is driven into the cylindrical portion contacts the protruding edge. The fixing structure for a floor panel according to claim 1.