JPH09273291A - Support leg of panel for double floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify a structure of a support leg which constitutes a double floor panel. SOLUTION: A nut 15 is screwed in a screw shaft 13 erected on a base plate 12, and a panel receiver 16 which is fitted externally and is inserted in an upper end part of the screw shaft 13 is supported by the nut 15. The panel receiver 16 is fitted externally in a locking condition due to the engagement with a longitudinal groove 20 for the screw shaft 13, and a protruding part 36 which is in contact with an outer shape face of the nut 15 externally is provided on a lower face of the panel receiver 16 to stop the loosening of the nut 15 after the height of the panel receiver 16 is adjusted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-floor panel support leg for supporting a double-floor panel at a predetermined height on a floor surface of a building to construct a double floor.

[0002]

2. Description of the Related Art As shown in FIG. 7, a conventional double-floor panel support leg has a screw shaft 2 standingly fixed on a base plate 1, a nut 3 being screwed onto the screw shaft 2, and a screw. A panel receiver 4 fitted over the shaft 2 is supported by a nut 3, and the panel receiver 4 is fixed to the screw shaft 2 with a bolt 9a. The nut 3 is also fixed to the screw shaft 2 with a bolt 9. It has a non-rotating structure.

The panel receiver 4 is provided with cross-shaped partition projections 8 on the upper surface of a rectangular board 7, and corners of a double floor panel are provided at four corners on the board 7 partitioned by the projections 8. Part is placed and fixed with screws, and panel receiver 4
Is adjusted by rotating the nut 3, and after the adjustment, the nut 3 and the panel receiver 4 are fixed to the screw shaft 2 by tightening bolts 9 and 9a, respectively.

[0004]

By the way, since the panel receiver 4 is manufactured by die-casting and the inner diameter of the fitting hole for the screw shaft is provided with a draft angle, in the configuration used as it is, the panel support 4 is not separated from the screw shaft. Therefore, there is a problem that rattling occurs in the panel receiver attached to the screw shaft.

If the fitting hole is formed to have a diameter smaller than that of the screw shaft and the inner diameter is cut in the post-processing to secure the fitting dimension with the screw shaft, the cutting process is extra and the working There is a problem of high cost.

Further, as shown in FIG. 7, the base plate 1 and the screw shaft 2 have the lower end of the screw shaft 2 at the base plate 1.
Since it was inserted into the central hole 10 of the above and fixed by caulking, there is a problem that it takes man-hours to assemble the base plate and the screw shaft.

Therefore, an object of the present invention is that the panel receiver can be arranged without rattling even if it is a die-cast product, the cost can be reduced by reducing the cutting process and the number of parts, and the process of assembling the base plate and the screw shaft is simple. The purpose of the present invention is to provide a support leg for a double floor panel.

[0008]

In order to solve the above-mentioned problems, the invention of claim 1 provides a vertical groove on the outer surface of a screw shaft erected on a base plate, and a nut screwed to this screw shaft. Supports a panel receiver that is externally fitted to the upper end of the screw shaft, and the panel receiver has a locking ridge that fits into a vertical groove and a slack that externally contacts the outer surface of the nut at the position where the nut contacts. This is a structure in which a stop projection is provided.

According to a second aspect of the present invention, in the first aspect of the present invention, the upper surface of the nut and the lower end surface of the panel receiver supported on the nut are formed in a tapered conical surface which coincides with each other. It was adopted.

According to a third aspect of the present invention, in the first or second aspect of the present invention, a plurality of welding projections are provided on the upper surface of the flange portion provided around the lower end of the screw shaft, and the screw shaft is inserted through the central portion of the base plate. A deformed hole is provided, the periphery of this deformed hole is bulged to the upper surface side so that the collar portion is accommodated in the lower part, and a flat surface for preventing rotation that abuts the side of the deformed hole on the outer periphery of the lower end of the screw shaft. Is formed, and the base plate and the screw shaft are welded and fixed at the overlapping portion of the welding projection and the base plate.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIGS. 1 to 5, the support leg 11 is provided.
Is a leg 14 in which a screw shaft 13 is erected on the base plate 12, a nut 15 externally fitted and screwed onto the screw shaft 13,
A panel receiver 16 is fitted over the screw shaft 13, and the panel receiver 16 is supported by a nut 15 so that its height position can be adjusted.

The screw shaft 13 is provided with a plurality of welding protrusions 18 on the upper surface of a circular flange 17 provided around the lower end thereof, and the male screw 1
The vertical groove 20 is provided on both sides of the shaft center of the portion where 9 is formed,
Further, a flat surface 21 for preventing rotation is provided at four positions on the outer surface of the lower end portion.
Is provided.

The base plate 12 is a metal plate having a substantially rectangular plane shape, and the insertion hole 22 for the screw shaft 13 is formed at the center thereof.
Is formed at the lower part of the periphery thereof, and is formed as a bulge portion 23 to the upper surface side in which the diameter and thickness of the collar portion 17 are accommodated, and nail driving holes 24 are provided at a plurality of positions near the outer periphery. 22 is formed into a square hole, an elongated hole, an elliptical hole, or the like having two opposite sides circumscribing the flat surfaces 21 on both sides of the screw shaft 13.
Is externally fitted to both sides of the flat surface 21 of the screw shaft 13, the screw shaft 13 and the base plate 12 are coupled in a non-rotational manner, and the overlapping portion of the projection 18 provided on the flange 17 and the base plate 12 is spot-welded. By doing so, the screw shaft 13 and the base plate 12 are fixed.

The panel receiver 16 has a planar cross-shaped partition projection 26 on the upper surface of a board 25 formed in a substantially rectangular plane shape, and the upper ends of the screw shafts 13 are provided at the center of the board 25 and the partition projection 26. A vertical hole 27 to be fitted to the outside is provided.
A protrusion 28 for preventing rotation that fits into the vertical groove 20 of the screw shaft 13 is provided on the inner peripheral surface of the, and a cushion material 29 formed in a planar cross shape using rubber or the like is formed on the upper end surface of the partition protrusion 26. , The mounting hole 3 provided with the projection 30 on the lower surface on the upper surface of the partition projection 26
By press-fitting into 1, it is fixed in a slip-out preventing manner. The panel receiver 16 is made of die casting, and the vertical hole 27 is formed as a taper hole having a small diameter at its upper end for die cutting, and is left in a state of being formed to have a diameter to be fitted onto the screw shaft 13.

The four parts of the board 25, which are divided by the partitioning projections 26, are the mounting portions of the double floor panel 32. The panel 32 is a panel in which tapping screws are screwed into the lower holes 33 of the board 25. It is fixed to the receiver 16.

The nut 15 screwed onto the screw shaft 13 is
The panel support 16 fitted and fitted on the screw shaft 13 is supported, and the height position of the panel support 16 is adjusted up and down by a rotating operation. The upper surface of the nut 15 and the panel support 1
As shown in FIG. 2, the lower surface of the base plate 25 in FIG.
35, which is a panel receiver 1 mounted on the nut 15
6 is centripetally supported by both inclined surfaces 34 and 35 so that the panel receiver 16 does not rattle.

At the lower surface of the panel receiver 16 at a plurality of positions around the inclined surface 35, there are provided protrusions 36 for preventing loosening which are circumscribed on the outer surface of the nut 15 when the panel receiver 16 is placed on the nut 15. Has been.

That is, the panel receiver 16 is provided with the panel receiver 16 while the rotation of the vertical groove 20 and the ridge 28 prevents the panel receiver 16 from rotating with respect to the screw shaft 13. When the projection 36 is in contact with the outer surface of the nut 15, the nut 15 is held non-rotatably by the panel receiver 16, and the nut 15 does not loosen after the height adjustment.

6 (A) and 6 (B) show another embodiment of the panel receiver 16, in which an elastic sheet 37 made of rubber or the like, which is placed on the substrate 25 and placed between the double floor panel and the panel, is attached. It is an example of a structure. The elastic sheet 37 is provided on the partition projection 26.
Has punched holes 38 in the shape of a cross in the shape of a flat cross and through holes 39 that match the lower holes 33 at the four corners, and the outer shapes of the four corners match the outer shape of the substrate 25 and are located at the outer ends of the punched holes 38. The portion is a band-shaped portion 40 that bulges outward.

The partition projections 26 of the panel receiver 16 are provided on the four outer end surfaces of the partition projections 26 with inclined projections 41 which are widened toward the lower side, and the elastic sheet 3 is provided on the substrate 25.
When 7 are piled up, the elastic sheet 37 can be attached by locking the strip-shaped portions 40 to the lower surface side of the engaging projections 41.

The support leg of the present invention is constructed as described above, and in order to construct the double floor panel, the support leg is located at the position where the ends of the double floor panel are gathered on the floor surface A of the building. 11 is arranged.

The support leg 11 has the base plate 12 installed on the floor surface A, and with the orientation of the vertical groove 20 of the screw shaft 13 set in advance, the leg body 14 is fixed to the floor surface by nailing or bonding. After screwing the nut 15 onto the upright screw shaft 13 and setting the height position of the nut 15, the screw shaft 1
The panel receiver 16 is externally fitted and inserted into the upper end portion of 3.

The panel receiver 16 includes the protrusion 28 and the screw shaft 13
By fitting in the vertical groove 20 of the nut shaft 15, the screw shaft 13 is prevented from rotating, the planar arrangement direction is set, and the inclined surface 35 of the lower surface is overlapped with the inclined surface 34 of the nut 15, so that the nut 15 At the same time, the projection 36 provided on the lower surface circumscribes the outer surface of the nut.

As a result, the panel receiver 16 is supported at a predetermined height position, and the nut 15 becomes non-rotatable and in a loosened state, and thereafter, the double floor panel is placed on the substrate 25 of each panel receiver 16. If 32 is fixed, a double floor can be constructed on the floor surface A.

[0026]

As described above, according to the present invention, the screw shaft erected on the base plate is provided with the vertical groove, the nut is screwed to the screw shaft, and the screw shaft is rotated by engaging with the vertical groove. Since the panel receiver that is externally inserted in the stopped state is supported by the nut, and the protrusion for preventing loosening that is circumscribed on the outer surface of the nut is provided on the lower surface of the panel receiver, the desired direction is secured in the arrangement of the panel receiver. The nut will not rotate after the height of the panel receiver is adjusted, and the height will not fluctuate after height adjustment, and other parts will be required to prevent the nut from loosening. Therefore, cost reduction can be realized by reducing the number of components.

Further, since the overlapping surface of the nut and the panel receiver is formed as the inclined surface, the panel receiver can be supported centripetically, the rattling of the panel receiver does not occur, and the arrangement accuracy of the panel receiver can be improved. At the same time, the vertical hole of the panel receiver can be left in a tapered shape, and the machining of the inner surface of the vertical hole can be eliminated.

Further, the base plate and the screw shaft can be fixed by welding, and the assembling cost of both can be reduced.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a support leg according to the present invention.

FIG. 2 is a longitudinal sectional view showing a use state of the above.

FIG. 3 is a transverse bottom view taken along the arrow III-III in FIG.

FIG. 4 is a cross-sectional plan view taken along arrow IV-IV in FIG.

5 is a plan view of FIG.

FIG. 6A is an exploded perspective view showing another example of the panel receiver, and FIG. 6B is a front view of the same.

FIG. 7 is a partially cutaway perspective view showing a conventional support leg.

[Explanation of symbols]

 11 Support Legs 12 Base Plate 13 Screw Shaft 14 Leg Body 15 Nut 16 Panel Holder 17 Circular Collar Part 18 Welding Protrusion 20 Vertical Groove 21 Flat Surface 22 Insertion Hole 23 Swelling Part 25 Substrate 26 Partition Projection Part 28 Projection Stitch 34, 35 Inclination Surface 36 Protrusion to prevent loosening

Claims (3)

[Claims] 1. A vertical groove is provided on an outer surface of a screw shaft erected on a base plate, and a nut which is screwed to the screw shaft supports a panel receiver externally fitted to an upper end portion of the screw shaft. A support leg for a double-floor panel, in which a rotation preventing projection that fits into a vertical groove and a loosening preventing projection that circumscribes the outer surface of the nut are provided at a position where the nut contacts. 2. The support leg for a double floor panel according to claim 1, wherein an upper surface of the nut and a lower end surface of a panel receiver supported on the nut are formed as tapered conical surfaces which are aligned with each other. 3. A plurality of welding projections are provided on the upper surface of a flange portion provided around the lower end of the screw shaft, and a deformed hole for inserting the screw shaft is provided at the center of the base plate. Bulge to the upper surface side so that the collar portion fits in, and form a flat surface for rotation prevention on the outer periphery of the lower end portion of the screw shaft that abuts the side of the deformed hole. The support leg for a double floor panel according to claim 1, wherein the support leg is welded and fixed at an overlapping portion of the base plate.