JP3808181B2 - Floor panel support column - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a column used in a floor panel support device for supporting a floor panel.
[0002]
[Prior art]
Many floor panel support devices are known for supporting a floor panel at an adjustable height position spaced upward from a base surface such as a concrete slab to form a double floor structure. It is desirable that the support for the floor panel support device has a small and simple structure and is strong. The pillar with the simplest structure is a bolt that can mount a panel receiving part on which a floor panel is placed at an adjustable height position, and a support plate that is assembled to the lower end of the bolt and spreads laterally. And a combination.
[0003]
As an assembling method of the lower end portion of the bolt and the support plate, for example, welding is conceivable. However, when welding is used, the surface-treated steel sheet cannot be used from the beginning as the support plate material, and a plating process or a coating process is required as a post-process after assembly.
[0004]
By using a caulking process for assembling the bolt and the support plate, the above-mentioned problems associated with welding are solved. For example, FIG. 1 and FIG. 3 of Japanese Utility Model Laid-Open No. 4-84647, Japanese Utility Model Laid-Open No. 6-51369 (particularly FIG. 3) and Japanese Patent Laid-Open No. 81446 and the like. As for the assembly of the support pipe and the support plate separate from the bolt by caulking (although in this case, it is different from the simple structure consisting of the bolt and the support plate which is the subject of the present invention), Examples shown in FIG. 2 and FIG. 5 of Japanese Utility Model Laid-Open No. 3-11742.
[0005]
The problem of assembly by caulking in the above-described prior art support is low bond strength. The cause is that the part on the side of the support plate involved in the assembly by caulking has only the dimension of the thickness of the support plate material. Further, when a large horizontal force is applied to the upper end of the bolt, sufficient support cannot be provided with the thickness of the support plate material, and the bolt may fall over.
[0006]
[Problems to be solved by the invention]
Therefore, the problem to be solved by the present invention is to provide a support for a floor panel support device that has a simple structure in which a bolt and a support plate are combined, strengthens the coupling between the two, and is strong against horizontal force. There is to do.
[0007]
Another object of the present invention is to provide a support column that can be assembled by caulking a bolt and a support plate.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, according to the present invention,
In the column used in the floor panel support device for supporting the floor panel at an adjustable height position spaced upward from the base surface,
A panel receiving part on which the floor panel is placed is an upright bolt that can be mounted at an adjustable height position, and a bolt having a lower end that is not threaded,
A support plate assembled in the lower end portion of the bolt and extending in the lateral direction, and a support plate having a hole in the center for fitting the lower end portion,
The bolt has a flange formed at the lower end, and a lateral protrusion formed at a position spaced upward from the flange,
The support plate includes an annular engagement portion that contacts the upper surface of the flange, a support portion that is continuous with the annular engagement portion, spreads outward in the radial direction of the flange, and can contact the base surface; A cylindrical upright peripheral wall that rises from the inner peripheral edge of the annular engagement portion, extends upward, and abuts and terminates on the lower surface of the lateral protrusion,
The hole into which the lower end of the bolt is fitted is formed by an inner peripheral surface of the peripheral wall;
A support for a floor panel support device is provided.
[0009]
The lower end portion of the bolt has a larger diameter than the screw portion, the lateral projecting portion is plastically deformed at a step portion between the lower end portion and the screw portion, and the peripheral wall is caulked from above. Can be formed.
[0010]
The peripheral wall can be formed by burring.
[0011]
The outer peripheral end surface of the support portion of the support plate may be faced to reduce its area.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a longitudinal sectional view of an embodiment of a support 1 for a floor panel support device according to the present invention. The support column 1 is configured by combining an upright bolt 2 and a support plate 3 extending in the lateral direction.
[0013]
The bolt 2 has a lower end portion 4 that is not threaded and a screw portion 5 that is above the lower end portion 4. A flange 6 is formed at the lower end of the bolt 2. A lateral protrusion 7 is formed at a position spaced upward from the flange 6.
[0014]
On the other hand, the support plate 3 assembled to the lower end portion 4 of the bolt 2 spreads outward in the radial direction of the flange 6 continuously to the annular engagement portion 8 that contacts the upper surface of the flange 6 and the annular engagement portion 8. And a support portion 9. As shown in FIG. 2, the support part 9 has a rectangular outline shape.
[0015]
A cylindrical upright peripheral wall 10 rises from the inner peripheral edge of the annular engagement portion 8. The peripheral wall 10 extends upward from a position where it abuts on the flange 6, and terminates in contact with the lower surface of the lateral protrusion 7. The peripheral wall 10 forms a central hole 11 of the support plate 3 by an inner peripheral surface thereof. The lower end portion 4 of the bolt 2 is fitted into the hole 11, and the flange 6 and the lateral protrusion 7 of the bolt 2 sandwich the cylindrical upright peripheral wall 10 from above and below.
[0016]
In a state where the bolt 2 and the support plate 3 are assembled to each other, the lower surface of the flange 6 of the bolt 2 and the lower surface of the support portion 9 of the support plate 3 are positioned in the same plane, and a floor base such as a concrete slab It can come into contact with the surface 12.
[0017]
FIG. 3 shows how the column 1 is used according to an embodiment of the present invention. A panel receiving component 13 is mounted on the screw portion 5 of the bolt 2. Since the panel receiving part has a screw hole that engages with the screw part 5 of the bolt 2, the panel receiving part can be mounted on the bolt 2 at an adjustable height position and can be fixed by the nut 14. . By placing the end of the floor panel 15 on the mounting surface 16 of the panel receiving part 13 and fixing the panel end by an appropriate means such as a panel lock 21, the floor panel 15 is spaced upward from the base surface 12. It is supported at an open and adjustable height position.
[0018]
A method of assembling the bolt 2 and the support plate 3 will be described. The support plate 3, whose details are shown in FIG. 2, is made of a single surface-treated steel plate (plated steel plate in the illustrated embodiment). A cylindrical upright peripheral wall 10 rising from the inner peripheral edge of the annular engagement portion 8 raised from the support portion 9 is formed by burring. The plurality of holes 17 formed in the peripheral edge portion of the support portion 9 are used for the flow of the adhesive applied to the lower surface of the support plate 3. Since the hole 17 is sealed with an adhesive, the occurrence of rust on the end face is prevented. The hole 17 is also used for connecting the pedestal and the support column 1 when the support column 1 is placed on a raising base (not shown). Such a pedestal is used when the distance between the height position where the floor panel is to be supported and the base surface 12 such as a concrete slab is considerably large.
[0019]
The bolt 2a before being assembled with the support plate 3 shown in FIG. 2 has a shape as shown in FIG. The difference from the assembled bolt 2 shown in FIG. 1 is that the lateral protrusion 7 has not yet been formed. The lower end portion 4 of the bolt 2 a has a larger diameter than the screw portion 5. As a result, a stepped portion 18 is formed between the lower end portion 4 and the screw portion 5.
[0020]
When the bolt 2 a is passed through the hole 11 of the support plate 3, the flange 6 is fitted into the recess 19 (FIG. 2) formed by the annular engagement portion 8, and the lower end portion 4 is the inner peripheral surface of the peripheral wall 10. It fits in the hole 11 formed by the above. As shown in FIG. 5, the stepped portion 18 is positioned at the upper end of the peripheral wall 10. The stepped portion 18 is plastically deformed by an appropriate means (not shown), and the peripheral wall 10 is caulked from above to form the lateral protrusion 7 as shown in FIG. As a result, the peripheral wall 10 is sandwiched between the flange 6 and the lateral protrusion 7, and a strong connection is realized between the bolt 2 and the support plate 3.
[0021]
As can be seen from FIG. 1, the unplated surface of the support plate 3 made of a plated steel plate is exposed only on the cut surface 20 that is the outer peripheral end surface of the support portion 9. Thus, by cutting the cut surface 20 as shown in FIG. 6 to reduce its area, or by making it zero as much as possible, the range of the plating layer is extended as shown in FIG. Generation of rust can be suppressed. Further, by performing this surface hitting, it is possible to eliminate the deburring work in the subsequent process.
[0022]
【The invention's effect】
According to the support for a floor panel support device of the present invention, the assembly of the bolt and the support plate has a cylindrical shape on the support plate side having a lower end portion of the bolt and an inner peripheral surface forming a hole into which the lower end portion is fitted. Since it is performed between the upright peripheral walls of the bolts, the coupling strength is higher than in the case of assembling between the lower end of the bolt and the plate thickness of the support plate as in the prior art, and a horizontal force acts on the bolt. It has excellent anti-falling power.
[0023]
Further, since the bolt is guided to the inner peripheral surface of the cylindrical upright peripheral wall during assembly, the perpendicularity of the bolt with respect to the support plate is improved.
[0024]
Further, by assembling the bolt and the support plate by caulking by plastic deformation of the stepped diameter portion of the bolt, the above-described assembly with high bonding strength can be easily achieved in a short time compared to welding assembly. be able to.
[0025]
Further, by not performing welding for assembling, a surface-treated steel plate can be used as a material for the support plate, and post-plating and painting processes can be omitted.
[0026]
The cylindrical upright peripheral wall of the support plate can be formed relatively easily by using burring.
[0027]
In addition, by chamfering the outer peripheral end surface of the support portion of the support plate, it is not necessary to remove the deburring as post-processing, and when a plated steel plate is used as the support plate material, cutting that is not covered with the plating layer Since the area of the surface can be minimized, the generation of rust from the cut surface can be suppressed.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an embodiment of a support for a floor panel support device according to the present invention.
FIG. 2A is a plan view and FIG. 2B is a side view of a support plate constituting a column according to the present invention, and FIG.
FIG. 3 is a longitudinal sectional view showing a state in which a panel receiving part is mounted on a column according to an embodiment of the present invention and a floor panel is supported.
4A is a plan view and FIG. 4B is a side view of a bolt constituting a column according to the present invention, and the bolt shown here is in a form before being assembled to a support plate. FIG.
FIG. 5 is a longitudinal sectional view showing a state in which a support plate and a bolt are combined in order to constitute a column according to the present invention, and a lateral protrusion is not yet formed.
FIGS. 6A and 6B are partial cross-sectional views showing (a) the shape before the beveling and (b) the shape after the beating of the outer peripheral end surface of the support plate.
[Explanation of symbols]
1 support, 2 bolt (after assembly), 2a bolt (before assembly), 3 support plate, 4 lower end, 5 thread, 6 flange, 7 lateral protrusion, 8 annular engagement, 9 support, 10 circumferential wall , 11 hole, 12 base surface, 13 panel receiving part, 14 nut, 15 floor panel, 16 mounting surface, 17 hole, 18 stepped portion, 19 recess, 20 outer peripheral end surface (cut surface), 21 panel lock.

Claims (3)

In the column used in the floor panel support device for supporting the floor panel at an adjustable height position spaced upward from the base surface,
A panel receiving part on which the floor panel is placed is an upright bolt that can be mounted at an adjustable height position, and a bolt having a lower end that is not threaded,
A support plate assembled in the lower end portion of the bolt and extending in the lateral direction, and a support plate having a hole in the center for fitting the lower end portion; and
The bolt has a flange formed at the lower end and a lateral protrusion formed at a position spaced upward from the flange.
The support plate includes an annular engagement portion that contacts the upper surface of the flange, a support portion that is continuous with the annular engagement portion, spreads outward in the radial direction of the flange, and can contact the base surface; A cylindrical upright peripheral wall that rises from the inner peripheral edge of the annular engagement portion, extends upward, and abuts and terminates on the lower surface of the lateral protrusion,
The hole into which the lower end of the bolt is fitted is formed by an inner peripheral surface of the peripheral wall ;
The lower end portion of the bolt has a diameter larger than that of the screw portion, and the laterally projecting portion plastically deforms a step portion between the lower end portion and the screw portion to crimp the peripheral wall from above. A support for a floor panel support device, characterized in that it is formed as described above . The said peripheral wall is formed by the burring process, The support | pillar for floor panel support apparatuses of Claim 1 characterized by the above-mentioned. 3. The support for a floor panel support device according to claim 1 , wherein an outer peripheral end surface of the support portion of the support plate is chamfered to reduce an area thereof. 4.

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