JPH05248053A - Column base fixing device - Google Patents

Abstract

PURPOSE:To improve working efficiency by fixing a support by superposing a support installation seat part which is projectingly installed at the center of the support, at a lower part base seat having tapped holes on both the sides of an upper surface. CONSTITUTION:An upper surface 6a is formed to a semicylindrical form through the bending to a center high part, and a tapped hole 6c for anchor bolt is formed at the center part of the bottom surface 6b, and each tapped hole 6d is formed on both the sides of the upper surface 6a, and a lower part base seat 6 is formed. Then, on both the sides of a seat plate 8b having a recessed curved surface for the fitting with the upper surface 6a of the lower part base seat 6 as bottom surface 8, each slot hole 8c for the insertion of a bolt screwed with the tapped hole 6d on the lower part base seat 6 is formed. Then, a support installation seat part 8 is formed by increasing the thickness of the seat plate part 8b including the slot hole 8c toward the inside from the outside, and a support 2 is projectingly installed at the center part. The vertical degree of the support 2 for a concrete skeleton 1 is freely adjusted by the slide of the superposed part between the lower part base seat 6 and the support installation seat part 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a column base fixing device which is applied when a column such as a handrail is attached to a building having a concrete skeleton.

[0002]

2. Description of the Related Art FIG. 7 shows an example of an erecting method for a concrete frame of a handrail provided on a veranda or the like of an apartment house. In the figure, a is a concrete frame on which a support b of a handrail is to be erected, and c is a concrete frame. Is a hole formed by extending the concrete frame a, d is an anchor installed at the bottom of the hole c, e is a support pipe b welded to the anchor d, and a sheath pipe for connection, and the support b is the sheath pipe e. To fit and fix. Reference character f is a mortar filled in the hole c after the support b is raised.

[0003]

The above-mentioned conventional construction method is complicated and inefficient because it involves many different works such as concrete chipping work, welding work, and mortar filling work. In addition to being prone to damage, there is a problem that the installation accuracy of the columns is not good because the adjustment function corresponding to the accuracy error of the concrete frame is poor.

[0004]

In order to solve the above-mentioned problems, in the present invention, the upper surface is formed into a semi-cylindrical shape by bending it to a middle height, and an anchor bolt screw hole is provided on the bottom surface of the upper surface. The lower pedestal is formed by providing screw holes on both sides, and this lower pedestal can be fixed to the concrete skeleton with anchor bolts, and on both sides of the seat plate with the concave curved surface that fits with the upper surface of this lower pedestal as the bottom surface. Providing long holes for inserting bolts that are screwed into the screw holes of the lower pedestal, and changing the thickness of the seat plate part including at least these long holes from the outer side to the inner side, to mount the column A seat portion is formed, a pillar is provided at the center of the pillar mounting seat portion, the pillar mounting seat portion is superposed on the lower pedestal, and is joined to the lower protrusion and the upper surface of the seat portion fitted into the elongated hole. It has an ear and its center In to the bolt via a holding block provided with a bolt insertion hole can be fixed to the strut by screwing the screw hole of the lower base constituting the column base fixation device.

[0005]

As described above, in the present invention, the work for the concrete skeleton is only the work of setting up the anchor bolts, and the verticality of the support is freely determined by the sliding of the overlapping portion between the lower pedestal and the support mounting seat. Can be adjusted. Therefore, according to the present invention, because the concrete framing work, the welding work, and the mortar filling work are not required, the construction is simplified and the work efficiency is improved, and the support position and the verticality can be easily adjusted. Therefore, the installation accuracy of the columns is also improved.

The strut mounting seat of the present invention is provided with long holes for inserting bolts which are screwed into the screw holes of the lower pedestal on both sides of the seat plate, and at least the seat plate part including these long holes. Change the thickness of the inside from the outside to the inside,
It has a lower protrusion that fits into the elongated hole and an ear portion that joins with the upper surface of the seat portion, so that the bolt can be screwed into the screw hole of the lower pedestal through a holding block having a bolt insertion hole in the center thereof. Therefore, even if an external force is applied after the support is fixed, the pressing block cannot move to the thicker seat plate portion. Therefore, the column is securely held after once fixed by the fixing device of the present invention.

[0007]

Embodiments of the present invention will be described below with reference to FIGS. In the figure, 1 is a concrete frame of a balcony of an apartment house, 2 is a handrail pillar, 3 is a head tree spanning the upper ends of the pillars, 4 is a lower bar between the lower parts of the pillars, 5 is a head bar 3 and a lower bar 4. It is a standing child juxtaposed with an appropriate interval between them.

In this embodiment, as shown in FIGS. 1 to 3, the upper surface 6a is curved to a middle height and formed into a semicylindrical shape, and a screw hole 6c for an anchor bolt is provided at the center of the bottom surface 6b. Screw holes 6d are provided on both sides of the upper surface to form a lower pedestal 6, and the lower pedestal 6 is attached to the anchor bolt 7
So that it can be fixed to the concrete frame 1.

Further, elongated holes 8c for inserting bolts which are screwed into the screw holes 6d of the lower pedestal 6 are provided on both sides of a seat plate 8b having a bottom surface 8a which is a concave curved surface fitted with the upper surface 6a of the lower pedestal 6. At the same time, the strut mounting seat 8 is formed such that the thickness of the seat plate portion 8b including at least these elongated holes 8c becomes thicker from the outside toward the inside, and the strut mounting seat 8 is formed in the center of the strut mounting seat 8. To project. Even if the thickness of the seat plate 8b is made thinner from the outer side toward the inner side, the same effect can be obtained.

FIG. 2 shows an embodiment in which the thickness of the seat plate 8b is gradually increased from the outer side toward the inner side, and FIG.
Seat plate portion 8b of only part A where there is a long hole 8c for inserting a bolt
Is formed so that it becomes thicker from the outside toward the inside,
The thicknesses of the other portions B and C are equal to each other on the outside and the inside, respectively.

Further, the column mounting seat portion 8 is overlapped with the lower pedestal 6 and is fitted into the elongated hole 8c.
(See FIG. 6) and an ear portion 9b joined to the upper surface 8d of the seat portion 8,
The support column 2 can be fixed by screwing the bolt 10 into the screw hole 6d of the lower pedestal 6 through a holding block 9 having a bolt insertion hole 9c in the center thereof. Note that 11 is a spring washer.

4 to 6 show various embodiments of the presser block 9, FIG. 4 shows an example in which the thickness of the ear portion 9b is made uniform, and FIG. 5 shows the lower surface 9d of the ear portion 9b inclined. Figure 6
Is an example in which the lower surface 9d of the ear portion 9b is formed into a convex curved surface.

In order to attach the handrail shown in FIG. 1 to the concrete skeleton 1 by the device of the present invention constructed as described above, first, the lower pedestal 6 is fixed at a predetermined position of the concrete skeleton 1 by the anchor bolts 7, On this lower pedestal 6, a strut mounting seat 8 formed at the lower end of the strut 2
And the bolt 10 inserted into the bolt insertion hole 9c of the pressing block 9 through the spring washer 11 is screwed into the screw hole 6d of the lower pedestal 6 through the elongated hole 8c. At this time, the lower protrusion 9a of the presser block 9 is inserted into the elongated hole 8c so that the ear 8b of the presser block 9 presses the upper surface 8d of the column mounting seat 8.

The strut mounting seat portion 8 of the present invention is provided with long holes 8c for inserting bolts which are screwed into the screw holes 6d of the lower pedestal 6 on both sides of the seat plate 8b, and at least these lengths. The lower projection 9a is fitted into the elongated hole 8c so that the thickness of the seat plate portion 8b including the hole 8c increases from the outside toward the inside.
And a top portion 8d of the seat portion 8 and an ear portion 9b joined to the upper portion 8d, and the bolt 10 is screwed into the screw hole 6d of the lower pedestal 6 through a holding block 9 having a bolt insertion hole 9c in the center thereof. Therefore, even if an external force is applied after the support is fixed to move the support mounting seat 8 in the direction of arrow D in FIG. 2, for example, in this case, the left holding block 9 in FIG.
It cannot move because it will move in the thick direction of 8b. When the user wants to move in the direction of arrow E in FIG. 2, the right side pressing block 9 in FIG.
Since it will move in the thick direction of 8b, it cannot move again.

[0015]

As described above, in the present invention, the work for the concrete skeleton 1 is only the work for raising the anchor bolts 7, and the verticality of the support columns 2 is the lower pedestal 6.
It can be freely adjusted by sliding the overlapped portion between the column mounting seat 8 and the column mounting seat 8. Therefore, according to the present invention, since the chipping work, the welding work, and the mortar filling work of the concrete skeleton 1 are unnecessary, the construction is simplified and the work efficiency is improved, and the mounting position and the verticality of the pillar 2 are improved. Since the adjustment is easy, the excellent effect that the installation accuracy of the support column 2 is improved can be obtained.

Further, the column mounting seat portion 8 of the present invention is the seat plate thereof.
Elongated holes 8c for inserting bolts that are screwed into the screw holes 6d of the lower pedestal 6 are provided on both sides of 8b, and at least the thickness of the seat plate portion 8b including these elongated holes 8c is directed from the outside to the inside. Through a holding block 9 having a lower protrusion 9a that is fitted in the elongated hole 8c and an ear portion 9b that is joined to the upper surface 8d of the seat portion 8 and that has a bolt insertion hole 9c in the center thereof Since the bolt 10 is screwed into the screw hole 6d of the lower pedestal 6,
Even if an external force is applied after fixing the column, the pressing block 9 cannot move to the thick side of the seat plate portion 8b. Therefore, it is possible to obtain an effect that the support is securely held after being fixed once by the fixing device of the present invention.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 (a) is a vertical view partially showing a cross section of the support column of FIG. 1, and FIG. 2 (b) is a side view thereof.

FIG. 3A is a vertical cross-sectional view showing a modification of FIG. 2A in a partial cross section, and FIG. 3B is a side view thereof.

4A is a front view showing a first embodiment of the presser block, FIG. 4B is a left side view thereof, and FIG.
[Fig. 3] is a right side view of the same, and (d) is a bottom view of (a).

5A is a front view showing a second embodiment of the presser block, FIG. 5B is a left side view thereof, and FIG.
[Fig. 3] is a right side view of the same, and (d) is a bottom view of (a).

FIG. 6A is a front view showing a third embodiment of the presser block, FIG. 6B is a left side view thereof, and FIG.
[Fig. 3] is a right side view of the same, and (d) is a bottom view of (a).

FIG. 7 is a vertical cross-sectional view showing a conventional method of planting a pillar.

[Explanation of symbols]

 1 Concrete skeleton 2 Strut 3 Kasagi 4 Lower bar 5 Standing 6 Lower pedestal 6a Top 6b Bottom 6c Anchor bolt screw hole 6d Screw hole 7 Anchor bolt 8 Strut mounting seat 8a Bottom 8b Seat plate (seat plate) 8c Long hole 8d Upper surface 9 Presser block 9a Lower protrusion 9b Ear 9c Bolt insertion hole 9d Lower surface of ear 10 Bolt 11 Spring washer

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Hiroshi Shindo 5-37-14 Oshima, Koto-ku, Tokyo (72) Hideo Yoshioka 7-17-16 Oshima, Koto-ku, Tokyo (72) Inventor Yoshiharu Kitamura Kanagawa Prefecture 4056 Sakuradai, Nakatsu, Aikawa-cho, Aiko-gun

Claims (1)

[Claims] 1. A lower pedestal is formed by bending an upper surface in a middle-height shape to form a semi-cylindrical shape, forming screw holes for anchor bolts on the bottom surface, and forming screw holes on both sides of the upper surface. Can be fixed to the concrete skeleton with anchor bolts, and long holes for bolt insertion that are screwed into the screw holes of the lower pedestal on both sides of the base plate with the concave curved surface that fits the upper surface of the lower pedestal as the bottom At the same time, the thickness of the seat plate part including at least these elongated holes is changed from the outer side toward the inner side to form the strut mounting seat part, and the strut is projected at the center of this strut mounting seat part. The presser foot is provided with the pillar mounting seat overlapping the lower pedestal and having a lower protrusion that fits into the elongated hole and an ear that joins with the upper surface of the seat, and a bolt insertion hole in the center thereof. Bolt through the block above the bottom A column base fixing device characterized in that a support can be fixed by being screwed into a screw hole of a pedestal.