JPH10169320A - Installing method of fitting made of steel and mounting metal fitting used for installing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To install a fitting made of steel simply, safely and quickly and lighten the burden of an execution worker, shorten the period of execution and reduce cost at the time of construction only by indoor works without requiring the chipping works of concrete, and to detach the fitting made of steel from a building simply and safely after a considerable period passes and conduct repair, exchange, etc., simply when the building is in service. SOLUTION: A rail body 1, in which a slit 2 beforehand communicated with an inner groove 3 is opened along a building-frame opening-section edge 32, is buried beforehand at the time of concrete placing. When the fitting made of steel such as a door, a sash, etc., is mounted to the building-frame opening- section edge 32, a joint metal fitting 6 slidably retained to the inner groove 3 is set up to the rail body 1 through the slit 2, and the fitting made of steel is installed to a concrete-constructed building by detachably connecting the sash frame 16 of the fitting made of steel to the joint metal fitting 6 by a bolt 19, screws 21, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of installing a steel fitting and a fitting used therefor, and more particularly, to a concrete building, which does not require a concrete hanging operation and a welding operation to a reinforcing bar. Steel fittings (including aluminum fittings) can be installed easily without any trouble, and even after a certain period of time, the steel fittings can be easily removed and replaced with new ones without the above work. By using a structure, it is possible for the constructor to shorten the construction period of the concrete building and to make the work simpler and safer, and to make it easier and cheaper for the user to maintain the steel fittings at a later date. The present invention relates to an installation method and an installation bracket used for the method.

[0002]

2. Description of the Related Art Conventionally, steel fittings such as sashes and doors attached to concrete building openings are welded with steel fitting frames to reinforcing bars protruding from the concrete skeleton openings, and then to the surroundings of the openings. It is installed by filling and solidifying the mortar in the gaps.

[0003]

However, this conventional method of installing a steel fitting has the following problems. 1. When a steel fitting is installed on a concrete frame, the frame is fixed to the frame by welding.First of all, the concrete around the opening of the frame is removed and the concrete is exposed. There must be. This requires extra personnel, tools, working time, cleaning, etc., and is also a factor in raising costs. 2. Since the frame of the steel fittings is directly welded and fixed to the skeleton,
Temporary fixing is also not easy, so that it is difficult to adjust the level and the like, and extra time is required for installation, and when a large amount of fittings of this type such as an apartment are attached, extra costs are also increased. 3. Since the fittings cannot be temporarily temporarily fixed, laborious work is required, and safety work in high places may be neglected. 4. In addition, since the gap between the opening and the periphery is hardened with mortar, the user of the building cannot easily replace the sash or the door thereafter.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a method for constructing a building without the need for concrete hanging work or welding work to rebar. In the above, the steel fittings can be installed simply, safely and quickly, so that the burden on the constructor can be reduced, the construction period can be shortened, and the cost associated with it can be reduced. To provide a steel fitting installation method and a fitting used therefor that can easily and safely remove a steel fitting from a building after a certain period of time, and can easily perform maintenance such as repair and replacement. It is in.

[0005]

According to a first aspect of the present invention, there is provided a method for installing a steel fitting, comprising the steps of:
In a concrete building, a rail that opens along the edge of the skeleton opening is buried beforehand when the concrete is cast, and a steel fitting such as a door or a sash is installed in the opening of the skeleton. At this time, a joint fitting slidably engaged with the inner groove is mounted on a rail body through a slit, and a steel fitting frame is detachably connected to the joint fitting with a screw or the like so that the steel fitting can be detached. Was installed in a concrete building.

In the method for installing a steel fitting according to claim 2,
In the steel fittings inserted and installed in the opening of the skeleton according to claim 1, a gap between the opening and the periphery of the skeleton is closed with a joint material such as urethane foam which can be easily removed at a later date.

According to a third aspect of the present invention, there is provided a metal fitting for installing a steel fitting.
A mounting bracket used in the method of setting a steel fitting according to claim 1 or 2, wherein a slit communicating with the inner groove is opened in the axial direction, and the slit side faces the inner surface of the formwork. And a joint fitting slidably mounted in the inner groove through the slit and having a connection part which is detachably connected to a frame of the steel fitting by a screw or the like.

According to a fourth aspect of the present invention, there is provided a metal fitting for a steel fitting.
The connecting part of the joint fitting according to claim 3 has an adjusting part for adjusting the entrance and exit of the steel fitting in a direction perpendicular to the slit direction of the rail body.

[0009]

When a steel fitting is installed in a concrete building, the frame of the steel fitting is fixed to the opening of the skeleton, but in the present invention, the steel fitting is not welded to the reinforcing bar protruding from the edge of the opening, but is previously welded. Because it was configured to be fixed to the rail body buried at the opening edge with screws etc. through joint fittings,
First, the frame of the steel fitting can be temporarily fixed to the opening of the skeleton by using the screw mounting portion, so that fine adjustment at the time of installation can be easily performed and the installation can be easily performed. There is no need for time and manual work to remove concrete and welding work to reinforcing steel, so if there are many work locations, the cost reduction effect will be great. Safety work can be performed at high altitudes without reducing efficiency. Also, the gap between the frame and the frame is
Instead of mortar, use urethane foam or other material that can be easily removed later, and fix it. Even after a long time, such as after 30 years, remove urethane foam and unscrew. The frame can be easily removed with just a simple operation. At that time, the frame can be removed only from the indoor side because there is no concrete hanging work or cutting work of the welded part, so the safety is improved from the aspect of construction, and a scaffold is unnecessary in terms of cost And become cheaper.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a cross-sectional view showing an installation state of a sash frame of the present embodiment around a joint, FIG. 2 is an exploded perspective view of the sash frame around the joint, and FIG. FIG. 4 is a view taken along the line AA in FIG. 2, and the configuration of each component will be described first.

In FIG. 1, reference numeral 1 denotes a rail body, which is installed at an opening 31 of a concrete frame 30 and has a slit formed at an edge 32 of the opening.

The rail body 1 is formed in a box shape having a substantially flat cross section in order to provide the inner groove 3, and a slit 2 communicating with the inner groove 3 over the entire length is opened on one wide surface thereof. I have. In the drawing, reference numeral 4 denotes an insertion opening formed on the slit forming surface side for inserting a locking portion 9 of a joint fitting 6 to be described later into the inner groove 3, and 5 denotes a projection protruding from the slit forming surface side to increase the adhesive force with concrete. It is an irregularly shaped projection provided.

Reference numeral 6 denotes a joint fitting, which in this embodiment comprises a slide portion 7 and a bracket portion 8.
The slide portion 7 is firstly made to protrude outside through a slit 2 and a locking portion 9 slidably mounted in the inner groove 3.
The connection seat 10 is formed in a substantially T-shape. The first connection seat 10 is provided with a long groove 11, one of which is cut out, in a direction orthogonal to the surface of the locking portion 9.

The bracket portion 8 is for mounting the sash frame 16 made of steel fittings.
The mounting portion 12 and the second connection seat 13 for screwing the fixing plate 18 inserted into the setting groove 17 from the outside of the setting groove 17 are formed in a substantially T-shape as described above. The second connection seat 13 includes the first connection seat 10.
The mounting portion 12 is provided with an elongated hole 14 corresponding to a tapped hole (not shown) of the fastening plate 18 in a direction orthogonal to the second connection seat 13.
5 have been established. In the figure, 19 is a bolt for tightening the connection seats, 20 is the same nut, and 21 is a screw for tightening the mounting portion 12 and the tightening fixing plate 18.

Next, the operation will be described. First, the rail body 1 is pre-fixed to the temporary frame before the concrete is cast and on the indoor side stepped opening forming surface so that the slit 2 faces the opening forming surface, and then the concrete is poured from above. Cast in. In the present embodiment, the rails 1 are arranged on the upper side and the left and right sides forming the frame opening.

As a result, the rail body 1 after the temporary frame has escaped is
It is fixed to the concrete frame 30 with the slit 2 opened at the frame opening edge 32. In this case, the concrete projection 5 is firmly fixed by the concrete fixing action.

Next, the joint fitting 6 is appropriately arranged on the rail body 1. In this case, the locking portion 9 is inserted into the rail body 1 from the insertion opening 4 so that the sliding portion 7 of the joint fitting 1 is inserted.
The brackets 8 are arranged on the sash frame 16 at predetermined intervals, and are fixed with screws 21 to fix the fixing plate 18.
To secure it.

At the time of installing the fittings, the sash frame 16 is inserted into the opening 31 of the frame from the room side, and the first connecting seat 10 and the second connecting seat 13 are overlapped so that the bolt 19
The sash frame 16 is installed in the skeleton opening 31 by fastening the bracket 8 and the slide 7 with the nut 20. At this time, the adjustment of the installation position is performed using the long hole 15 provided in the bracket part 8 in the front-back (in / out side) direction, and the long groove 11 in the up-down direction.
And adjustment using the elongated hole 14. This sash frame 16
After installation, urethane foam 35 is injected into the gap between the sash frame 16 and the frame opening edge 32 to be fixed and waterproof. 33 in the figure
Is a joint waterproof and 34 is a glass window fitted later.

As described above, in the present embodiment, the sash frame 16 is installed using the rail body 1 attached to the temporary frame and the joint fitting 6 whose level can be adjusted. The installation can be performed easily without requiring a special technique such as a mounting welding technique.

Further, since the sash frame 16 is not fixed by welding or mortar as in the prior art, it is necessary to remove concrete around the sash frame or cut the welded rebars when exchanging fittings several decades later. Without removing the urethane foam, simply removing the screws after removing the urethane foam allows the frame to be easily detached even afterwards, making maintenance such as reforming easy. In addition, since the sash frame 16 can be detached from the inside of the building, there is no need to use a scaffold, the maintenance cost is reduced, and the time required for the work is reduced.

Although the embodiment of the present invention has been described above, the specific configuration of the present invention is not limited to this embodiment, and there are design changes and the like within a range not departing from the gist of the invention. This is also included in the present invention.

For example, as shown in FIG.
The connection seats 10 and 13 of the bracket part 8 may adopt another angle such as 45 degrees instead of 90 degrees. In this case, it is possible to oppose the acting force in both the vertical and horizontal directions.

Also, the mounting position is adjusted by utilizing the width of the flat plate, and the mounting position is adjusted by using the width of the flat plate without providing the long groove 11 or the long hole 14.
Instead of the bolt 19, a tapping screw 22 or the like may be used for fixing.

In the embodiment, the sash frame has been described. However, the present invention is not limited to the sash frame, and a steel frame such as a door can be similarly mounted, and a steel fitting can be easily installed.

[0025]

As described above, in the method for installing a steel fitting and the fitting for the steel fitting according to the present invention, since the above-mentioned configuration is adopted, concrete is built in a concrete building with extra time and labor. The steel fittings can be adjusted and installed by a simple operation without the need for such an operation, and the installation time can be shortened. No special technique such as welding is required, and installation work can be performed safely from the indoor side. In addition to the above effects, it is possible to reduce the burden on the installer, shorten the construction period, and reduce the cost associated therewith. In addition, the gap between the opening of the skeleton and the steel fitting frame is filled with mortar, etc., so that it will not be fixed, so after a certain number of years, when the user intends to repair or replace the steel fitting, it will be necessary to use a concrete drop or temporary scaffold. The steel fittings can be detached from the building without the need for a repair, and maintenance such as repair and replacement can be performed safely and easily. In addition, even in this case, since temporary costs and the like are not required, effects such as reduction of costs can be obtained.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an installation state of a sash frame around a joint fitting according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view showing the vicinity of a joint fitting of the sash frame.

FIG. 3 is a front view showing a state where the sash frame is attached.

FIG. 4 is a view taken along line AA of FIG. 2;

FIG. 5 is a perspective view showing the periphery of a joint fitting according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rail body 2 Slit 3 Inner groove 6 Joint fitting 7 Slide part (joint fitting) 8 Bracket part (joint fitting) 9 Locking part 16 Sash frame 19 Mounting bolt 21 Screw 30 Concrete body 31 Body opening 32a Opening edge 35 Foaming Urethane

Claims (4)

[Claims] 1. In a concrete building, a rail body that opens in advance along a rim of a skeleton opening portion with a slit communicating with an inner groove is previously buried when concrete is poured.
When installing a steel fitting such as a door or a sash in the opening of the skeleton, a joint fitting slidably engaged with the inner groove is mounted on a rail body through a slit, and a frame of the steel fitting is attached to the joint fitting. A steel fitting is installed in a concrete building by detachably connecting the steel fitting with a screw or the like. 2. A steel fitting inserted and installed in the opening of the skeleton, wherein a gap between the opening and the periphery of the skeleton is closed with a joint material such as urethane foam which can be easily removed at a later date. How to install steel fittings. 3. A mounting bracket used in the method of mounting a steel fitting according to claim 1 or 2, wherein a slit communicating with the inner groove is opened in an axial direction, and the slit side is positioned on the inner side of the mold. It is formed of a rail body to be faced, and a joint fitting having a connecting portion slidably mounted in the inner groove through the slit and connected to a frame of a steel fitting so as to be detachably connected with a screw or the like. Characteristic fittings for steel fittings. 4. The mounting bracket for a steel fitting according to claim 3, wherein the connecting part of the joint fitting has an adjusting part for adjusting the entrance and exit of the steel fitting in a direction perpendicular to a slit direction of the rail body.