JPH0452819B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is used when erecting a handrail support etc. on a parapet formed on the outer peripheral edge of a balcony, etc. This invention relates to a column fixing anchor constructed by protruding from the back surface of a main body portion fixed to the upper surface thereof an anchor leg portion buried within the parapet.

[Conventional technology]

Generally, when using this type of anchor to erect a supported member such as a handrail post, the anchor must have sufficient strength to withstand the bending moment generated at its lower end due to the load applied to the supported member. It is necessary to fix it to the parapet.
In order to meet such demands, as shown in FIG. 12, a structure in which a plurality of anchor legs 2, 2, .

[Problem that the invention seeks to solve]

However, such conventional devices are constructed with legs 2, 2, etc. protruding from the bottom of the main body 1 in a complicated manner, resulting in a large overall volume and being bulky during transportation or storage. or because of this, the construction efficiency has been reduced.

The present invention was developed in response to these circumstances, and by reducing the overall volume, transportation or storage space can be reduced, and the required installation strength can be maintained even after installation. The purpose of this invention is to provide an anchor for fixing pillars that can be used.

[Means for solving problems]

In FIG. 1, an anchor for fixing a column according to the invention is shown in a corresponding embodiment.

In this FIG. 1, reference numeral 1 designates a main body portion on which a supported member 3 is fixed and erected, and is buried within a parapet 4.
Anchor legs 2 for firmly fixing the parapet 4 on the parapet 4 are arranged on the back side of the main body 1 at two opposing outer edges 1a, 1a located along the longitudinal direction of the parapet 4. .

[Effect]

The load on the supported member 3 (force A in FIGS. 1 and 15) generates a moment at its lower end, and in order to resist this moment, a parapet 4 is placed at the joint site between the anchor and the parapet 4.
A compressive force on the anchor leg 2 and a tensile force on the anchor leg 2 will be generated.

In the conventional example, in order to maintain sufficient installation strength against this tensile force, the anchor leg 2
was buried deep within parapet 4.

On the other hand, the above-mentioned tensile force is inversely proportional to the distance L from the center of the supported member 3 to the anchor leg 2, so the larger the distance L, the smaller the tensile force, and the reaction force applied to the anchor leg 2 is becomes smaller.

The present invention has been made with attention to this point, and by arranging the anchor legs 2 on two mutually opposing outer edges located along the longitudinal direction of the parapet 4, the supported member 3 is By making the distance L between the center and the anchor leg 2 as long as possible and generating the drag force by the anchor leg 2 relatively efficiently, the anchor leg 2 can be made as large as possible to the minimum necessary size. This reduces the capacity.

Furthermore, a bent piece 6 is formed at the lower end of the anchor leg 2, thereby improving the installation strength on the parapet 4.

〔Example〕

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In FIG. 1, a state in which a handrail column, which is a supported member 3, is erected by the column fixing anchor according to the present invention is shown, and in FIG.
A perspective view of a column fixing anchor according to this embodiment is shown.

In this embodiment, the main body part 1 is formed into a flat plate shape from, for example, a steel plate, and has a supporting piece 5 welded to its upper surface so that a supported member 3 can be welded and erected thereon. Its both side edges are bent downward to form two anchor legs 2, 2 on each outer edge 1a, 1a.

In addition, 6 indicates a bent piece formed by bending the lower end of the anchor leg 2 inward in order to increase the engagement with the parapet 4 and further improve its installation strength, and 7 9 indicates a hole drilled in the main body 1 to install a stud 8, which will be described later, and 9 indicates a separator guide hole used when installing an anchor using a separator. By bending the pieces 6 inward, not only can the storage space be reduced, but also the protrusion from the main body 1 can be eliminated, allowing the main body 1 to have as wide an area as possible within a limited width dimension. It becomes possible to store the anchor that has.

Next, an example of the installation work of the anchor according to this embodiment will be explained based on FIG.
A stud 8 is erected on the main body 1 to which the stud 8 is glued, and an anchor with a mounting bar 13 attached to the upper end of the stud 8 is fixed to the formwork 11 at the mounting bar 13 with the stud 8 and nut 14. 11, concrete is poured into the space surrounded by the parapet 4 to form the parapet 4 as shown by the broken line in FIG. A mounting portion is formed on the parapet 4.

In this state, the parapet 4 has a main body 1 of the anchor with studs 8 erected on its upper surface.
is exposed to the outside, so after cutting the stud 8, a supporting piece 5 is welded to the upper surface of the main body 1, as shown in FIG. The supported member 3 can be easily erected by welding the lower end of the handrail support member 3 and filling this portion with mortar or the like.

In addition, in FIG. 3, reference numeral 16 indicates reinforcement arranged within the space framed by the formwork 11.

In addition, although the most rational construction method when using the anchor of the present invention has been described above, in addition to this, it is also possible to install the anchor between the formworks 11 and
It is also possible to fix the anchor by welding the main body part 1 to a separator that holds 1 and 11 at an appropriate interval.Furthermore, as shown in FIG. It is also possible to insert and fix the separator, and in this case, welding work between the separator and the anchor is no longer necessary, and workability can be improved.

In FIG. 5 a modification of the embodiment described above is shown. In this modification, each outer edge 1a, 1a
A plurality of anchor legs 2, 2... are formed in the structure, and these opposing anchor legs 2 are positioned in the gap between one of the anchor legs 2,
When this anchor is punched out using a progressive die, consideration is given to improving the material yield.

Further, FIGS. 6 to 9 show other modified examples, in which FIG. 6 shows the case where the anchor leg part 2 is formed separately and is welded to the main body part 1, and FIG. 7 shows the above-mentioned modification. When the anchor leg part 2 in Fig. 6 is formed continuously to have a U-shaped cross section, Fig. 8 shows a case where the anchor leg part 2 is welded and has a C-shaped cross section when viewed from the side, and Fig. 9 shows a case where the anchor leg part 2 has a U-shaped cross section when viewed from the side. In the case where the anchor leg part 2 is formed by welding to the main body part 1, FIG.
The following shows the cases in which they are used as follows.

In addition, in these modified examples, the anchor leg 2
It is free to form appropriate protrusions 17 or holes 18 on the parapet 4 to increase the bonding strength with the parapet 4.

FIG. 10 is a perspective view showing a second embodiment of the present invention.

In this embodiment, the anchor legs 2 are made removable, making storage more convenient.
The anchor leg portion 2 is formed by bending a rod into a U-shape when viewed from the front, and can be attached by fitting the upper bent portion 19 into the insertion hole 1b bored in the side wall portion of the main body portion 1. is being used.

Further, FIG. 11 shows a third embodiment of the present invention, in which a folding line 20 is formed on a plate material, and when used, it is folded as shown by the solid line in FIG. 14 to form an anchor leg portion 2. This shows the case where

Therefore, according to this embodiment, when not in use, it is in a flat plate shape as shown by the broken line in FIG. 11, making storage very convenient.

〔Effect of the invention〕

As is clear from the above description, according to the column fixing anchor according to the present invention, by arranging the anchor legs on the two mutually opposing outer edges located along the longitudinal direction of the parapet, the supported member can be fixed. By making the distance between the center and the anchor leg as long as possible, the drag force by the anchor leg can be generated relatively efficiently.

Therefore, by reducing the overall volume of the anchor, transportation or storage space can be reduced, and the required installation strength can be maintained even after installation.

Furthermore, since the bent part provided at the lower end of the anchor leg is bent inward, storage space can be reduced, and since there is no protruding part from the main body, the tip of the bent part can be seen from the parapet. is not exposed, and the area of the main body can be made as wide as possible.

As a result, the distance between the anchor legs can be increased, and the installation strength can be increased.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing the installed state of the column fixing anchor according to the present invention, FIG. 2 is a perspective view showing the column fixing anchor used in FIG. 1,
3 and 4 are explanatory diagrams showing one step of installing the column fixing anchor according to the present invention, and FIG. 5 is a perspective view showing a modification of the anchor shown in FIG. 2,
6 to 9 are perspective views showing still another modification, FIG. 10 is a perspective view showing a second embodiment of the present invention, and FIG. 11 is a perspective view showing a third embodiment of the present invention, FIG. 12 is a sectional view showing a conventional example. DESCRIPTION OF SYMBOLS 1... Main body part, 1a... Outer edge, 2... Anchor leg part, 3... Supported member, 4... Parapet,
6...Bent piece.

Claims (1)

[Scope of Claims] 1. An anchor comprising an anchor leg buried in a parapet projecting from the back surface of a main body, and supporting a lower end of a column on an upper surface of the main body, the anchor leg comprising: It hangs downward from two opposing edges located along the longitudinal direction of the parapet of the main body, and at the lower end of the anchor leg,
An anchor for fixing a post, characterized by forming a bent piece that is bent inward.