JPH08284377A - Free access floor support leg - Google Patents

Abstract

PURPOSE: To make it possible to adjust the height of a support leg with ease and prevent a cap member from moving threadingly carelessly after the height of the support leg has been adjusted. CONSTITUTION: This free access floor support leg comprises a support member 1 installed on a floor slab surface and a cap member 2 which is fitted in the support post 1 so that it may move threadingly. Engagement holes 5 and 6 are formed on the support member 1 and the top wall of the cap member 2 respectively. A locking pin 4 are insertingly locked with these engagement holed 5 and 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a support leg for a free access floor, and more particularly to a support member installed on the surface of a floor slab and a cap member which is screwed and attached to the outside of the support member. The present invention relates to a support leg for a free access floor for a low floor, which is composed of.

[0002]

2. Description of the Related Art In a conventional supporting leg of this type, as shown in FIG. 8, the height of the supporting leg A is adjusted by screwing a cap member 2 with respect to a column member 1 installed on a floor slab surface B. After that, the screwing prevention fixing screw 3 provided on the cap member 2 is tightened to prevent the cap member 2 from being inadvertently screwed. Therefore, the screwing prevention fixing screw 3 is gradually loosened and the cap member 2 is screwed, or the male screw portion 11 of the column member 1 is crushed by the screwing prevention fixing screw 3 and the support leg of the supporting leg is crushed. When readjusting the height, there is a problem that the screwing operation of the cap member 2 becomes impossible, and the screwing prevention fixing screw 3 must be tightened or loosened from the side surface of the low support leg A. Therefore, there was a problem that workability was poor.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of such a conventional problem, and the work of adjusting the height of the supporting leg can be easily performed, and the height of the supporting leg can be adjusted. It is intended to provide a support leg for a free access floor without fear that the cap member will be inadvertently screwed.

[0004]

A support leg for a free access floor according to claim 1 of the present invention, which achieves the above object, comprises:
It is composed of a pillar member installed on the floor slab surface and a cap member that is screwably fitted and attached to the pillar member. The engaging pins are formed, and locking pins having a substantially polygonal cross section are inserted and locked through the engaging holes of the pillar member and the cap member. A support leg for a free access floor according to claim 2 of the present invention is composed of a pillar member installed on the floor slab surface and a cap member screwably fitted and attached to the pillar member. A plurality of engagement holes are concentrically arranged and formed on the upper surface wall of the strut member, and an engagement hole is formed on the upper surface wall of the cap member at a position corresponding to the engagement hole of the strut member, It is characterized in that the locking pin is inserted and locked over the engaging holes of the column member and the cap member. In the support leg according to claim 3 of the present invention, a fitting flange is formed on the head of the locking pin, and the fitting flange of the locking pin is flush with the outer periphery of the engaging hole of the cap member. It is characterized in that it is formed with a flange receiving recess that fits in the.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings, but the same reference numerals are given to the same constituent members throughout the drawings and duplicated description will be omitted.

First, an example of an embodiment according to claims 1 and 3 of the present invention will be described with reference to FIGS. 1 to 4. The support leg A according to the present invention includes a pillar member 1 installed on the floor slab surface B, a cap member 2 which is threadably fitted and attached to the pillar member 1 to receive the floor panel C, and a cap. And a locking pin 4 for preventing inadvertent screwing of the member 2.

The strut member 1 is formed of a metal material such as an aluminum material or an iron material, a plastic material, or the like into a substantially cylindrical hat shape having an adhesive flange 12 at the bottom and an upper surface wall 13 at the top, and its outer periphery. A male screw 11 is formed on the side.

The cap member 2 is made of the same metal material or plastic material as that of the strut member 1, and has a top wall 21 on the upper portion thereof and has a substantially bottomed cylindrical shape having a size suitable for the outer shape of the strut member 1. Is formed on the inner peripheral side of the
1 is formed by forming a female screw 22 that is screwed with 1.

The upper wall 13 of the strut member 1 is formed with an engaging hole 5 having a substantially square planar shape such as a substantially square planar shape or a hexagonal shape so as to penetrate through the upper surface wall 13 of the cap member 2. Similarly, the upper surface wall 21 is formed with an engaging hole 6 having a substantially polygonal shape in a plane such as a quadrangle or a hexagon at the center position thereof, and the engaging pin 4 is provided over the engaging holes 5 and 6. It can be detachably inserted and locked.

The engagement hole 6 of the cap member 2 may have a circular shape when the flange receiving recess 7 described later is formed in a substantially polygonal shape in a plane, and does not necessarily have to be formed in a substantially polygonal shape in a plane.

The locking pin 4 is formed in the shape of a rod (pin) having a sufficient length across the engaging holes 5 and 6 formed through the upper surface walls 13 and 21 of the support member 1 and the cap member 2, respectively. In addition, it is formed in a substantially polygonal cross-section that matches the inner shape of the engagement holes 5 and 6, and its head has a substantially circular plane (see FIG. 2) or a polygonal shape such as a quadrangle or a hexagon (see FIG. 4).
The fitting flange 41 with the reference) is formed in the same body. When the flange receiving concave portion 7 is formed in a substantially polygonal shape in the plane and the engaging hole 6 of the cap member 2 is formed in a circular shape, the cross-sectional shape of the locking pin 4 in that portion may be circular.

The upper wall 21 of the cap member 2 has a
A flange receiving recess 7 having the same shape as the outer shape of the fitting flange 41 of the locking pin 4 and having a depth with which the fitting flange 41 is fitted in a flush shape is formed on the outer periphery of the engagement hole 6. At this time, FIG.
The upper wall 21 of the cap member 2 as in the embodiment shown in FIG.
When the buffer pad 8 is used on the upper side, the flange receiving recess 7 is formed so that the fitting flange 41 of the locking pin 4 is flush with the upper surface of the buffer pad 8.

In order to adjust the height of the support leg A, the cap member 2 is screwed on the support member 1,
After that, the locking pin 4 is inserted from above from the engaging hole 6 of the cap member 2 and the engaging hole 5 of the strut member 1. Then, the cap member 2 is screw-rotatably connected to the column member 1 via the locking pin 4, and the fitting flange 41 of the locking pin 4 is flush with the flange receiving recess 7 of the cap member 2. Fit in the shape. This prevents the cap member 2 from accidentally screwing.

Next, an embodiment according to claim 2 of the present invention will be described with reference to FIGS. In the invention according to claim 2, a plurality of engagement holes 5 are formed in the upper surface wall 13 of the column member 1.
5 are arranged concentrically, and an engaging hole 6 is formed in the upper surface wall 21 of the cap member 2 at a position corresponding to the engaging holes 5, 5 of the strut member 1. The locking pin 4 is inserted and locked over the two engaging holes 5 and 6.

That is, in the embodiment shown in FIGS. 5 and 6, a large number of small engaging holes 5 are formed in the upper wall 13 of the column member 1.
5 are arranged concentrically, and one engaging hole 6 is penetratingly formed in the upper surface wall 21 of the cap member 2 at a concentric position corresponding to the engaging holes 5, 5 of the strut member 1. After the member 2 is screwed to adjust the height of the support leg A, the locking pin 4 is inserted and locked over the engagement hole 6 of the cap member 2 and the engagement hole 5 of the strut member 1. It is a thing. In this case, it is not necessary to form the engagement holes 5 and 6 of the support member 1 and the cap member 2 in a substantially polygonal shape in a plane, and the locking pin 4 need not be formed in a substantially polygonal shape in cross section.

Further, in the embodiment shown in FIG. 7, a plurality of engaging holes 5, 5 ... Formed in the upper wall 13 of the column member 1.
Are formed in arc-shaped elongated holes and are arranged concentrically, and the cap member 2 is screwed to adjust the height of the support leg A, and then the engagement hole 6 of the cap member 2 and the support member 1 are engaged. The locking pin 4 is inserted and locked over the dowel hole 5. In this case, it is better to use a tapping screw as the locking pin 4 and screw the locking pin 4 into the engagement hole 5 of the support member 1.

[0017]

Since the supporting legs for the free access floor of the present invention are constructed in this way, the cap member is screwed on the support member to adjust the height of the supporting leg, and then the cap member is pushed from above. By simply inserting the locking pin through the engaging hole and the engaging hole of the support member, the cap member is connected to the support member via the locking pin in a screw-rotatable manner. Therefore, the work of adjusting the height of the support leg and maintaining the height can be performed easily and quickly, and there is a fear that the cap member is inadvertently screwed after the height of the support leg is adjusted. Disappear.

Moreover, by simply pulling out the locking pin from the engaging holes of the support member and the cap member, the height of the supporting leg can be easily adjusted without damaging the male and female screw portions of the support member and the cap member. Can be done.

Further, according to the support leg for the free access floor of the third aspect of the present invention, when the locking pin is inserted through the engaging hole of the column member and the engaging hole of the cap member, the engaging pin is engaged. If the stop pin is correctly inserted over the engagement hole of the column member and the engagement hole of the cap member, the fitting flange of the locking pin fits flush with the flange receiving recess of the cap member, It is possible to easily visually confirm whether the locking pin is properly inserted through the engaging hole of the column member and the engaging hole of the cap member. Therefore, it becomes possible to reliably carry out the work of maintaining the height of the support leg, including the case of forgetting to attach the locking pin.

[Brief description of drawings]

FIG. 1 is a sectional view showing an example of an embodiment according to claim 1 of the present invention.

FIG. 2 is an exploded perspective view of FIG.

FIG. 3 is a sectional view showing another embodiment according to claim 1 of the present invention.

FIG. 4 is a perspective view showing still another embodiment according to claim 1 of the present invention.

FIG. 5 is a sectional view showing an example of an embodiment according to claim 2 of the present invention.

6 is an exploded perspective view of FIG.

FIG. 7 is a sectional view showing another embodiment according to claim 2 of the present invention.

FIG. 8 is a sectional view showing a conventional example.

[Explanation of Codes] A ... Support leg B ... Floor slab surface C ... Floor panel 1 ... Strut member 2 ... Cap member 4 ... Locking pin 41 ... Fitting flange 5,6 ... Engaging hole 7 ... Flange receiving recess

Claims (3)

[Claims] 1. A strut member installed on a floor slab surface and a cap member screwably fitted and attached to the strut member, the strut member and the cap member being respectively located at center positions of upper surface walls. A support for a free access floor, characterized in that engaging holes having a substantially polygonal shape in a plane are formed, and locking pins having a substantially polygonal cross section are inserted and locked over the engaging holes of the strut member and the cap member. leg. 2. A support member installed on a floor slab surface and a cap member screwably fitted and attached to the support member, wherein a plurality of engaging holes are formed in an upper wall of the support member. Are formed concentrically, and engaging holes are formed in the upper surface wall of the cap member at positions corresponding to the engaging holes of the strut member, and locking pins are provided over the engaging holes of the strut member and the cap member. Support legs for free access floors, which are characterized by inserting and locking. 3. A flange receiving recess, in which a fitting flange is formed on the head of the locking pin, and the fitting flange of the locking pin fits flush with the outer periphery of the engaging hole of the cap member. The support leg for a free access floor according to claim 1 or 2, wherein