JPH036311B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a device for simultaneously pulling out an existing window frame opposing frame portion for window renovation, which is used in window renovation of an existing building.

[Prior Art] Japanese Utility Model Application Publication No. 124136/1983 is known as a technique for pulling out and removing this type of window during renovation.

According to this, a tension device having upper and lower hooks facing inward and outward directions is installed between the upper and lower opposing frame portions of an existing steel window frame used as a sliding window, and while pulling it out from the building frame, At the same time as this pulling out, the left and right vertical frames are removed individually by inserting long crowbar-shaped F-shaped removal tools into the four corner gaps between the vertical frames and the frame formed by bending the ends in the in-plane direction. An example is shown in which a step of sequentially peeling off the material is adopted.

[Problems to be Solved by the Invention] However, according to this, the left and right vertical frames require manual removal work, which is extremely complicated and dangerous in high places. Removal is not always efficient.

The reason for this appears to be that the frames of existing window frames have various configurations, and in particular, vertical frames cannot be installed with this tensioning device.

That is, in the case of the above-mentioned double-sliding steel window frame, the upper and lower opposing frame parts have the groove rails and water return that receive the above-mentioned hook exposed in the in-plane direction, whereas in the case of the vertical frame, What is exposed inwardly is only a continuous curved surface formed by bending against the side wall, even though it has a concave portion for receiving the door edge, and the above-mentioned hook facing indoors and outdoors is exposed inwardly. There is no part that accepts

Similar frame configurations are also found in some other frames.

In other words, the above-mentioned disclosed example always requires manual peeling-off work, and also has the problem of not being able to provide a tensioning device to one of the opposing frames.

The present invention has been made in view of such problems, and provides an existing window frame for window renovation that allows the opposing frame portion of an existing steel window frame to be constantly pulled out without manual stripping work. It is an object of the present invention to provide a device for simultaneously pulling out opposing frame parts.

[Means for Solving the Problems] To achieve the above object, the present invention merely exposes the continuous curved surface in the in-plane direction. The present invention includes a structure in which a steel fitting is fixed to the opposing frame portion of an existing steel window frame, and a pulling device is interposed therebetween. This is a pulling device for an existing steel window frame that is embedded in the building frame and attached to the frame by exposing the continuous curved surface in the in-plane direction, and the device is used to pull out an existing steel window frame attached to the frame by exposing the continuous curved surface in the in-plane direction. A pair of steel fittings that protrude inward and are fixed and have a locking through hole in the protruding portion, and a hook locking fitting that can be releasably hooked and locked to the locking through hole of the steel fittings. The present invention relates to a device for simultaneously pulling out an existing window frame opposing frame portion for window renovation, which is characterized by being equipped with a tensioning device having the following features.

[Operation] In the present invention, by operating the tension device to compress the gap between the steel fittings, the compressive force on the latching fittings is transmitted to the opposing frame portion to be fixed. At the same time, the opposing frame portion reaches its fixed position and is pulled out from the building frame in the in-plane direction.

[Example] The present invention will be further explained below with reference to the drawings showing the example. 1 refers to the upper and lower frames attached to the building frame A by welding and fixing to the reinforcing bars 12 at predetermined intervals. This is a rectangular existing steel window frame comprising upper and lower opposed frame parts 2 and 5 and left and right opposed frame parts 8 and 9 made of vertical frames, and this existing steel window frame 1 is for double sliding. It is said that

This existing steel window frame 1 particularly includes upper and lower opposed frame parts 2 and 5, as well as left and right opposed frame parts 8,
8, as shown in FIG. 1, steel fittings 13 and 13 are used to simultaneously pull out and remove them in the in-plane direction by a tensioning device 17 by the same means.

First, the upper and lower opposed frame parts 2 and 5, which are removed by pulling them out in advance, will be explained. In the frame part 2, which is the upper frame in FIG.
A steel fitting 13 is fixed by welding to the center part in the longitudinal direction of the lower surface of L-shaped bent parts 4, 4, which are formed by opening the lower end of 3 and bending the lower end toward the indoor and outdoor directions, respectively. In the frame portion 5, which is a frame, a steel fitting 1 is similarly fixed to a central portion in the longitudinal direction corresponding to the above-mentioned portion of a lower frame substrate 6 that is inclined outward. In addition, 7
is a water return provided on the frame portion 5 which is the lower frame.

On the other hand, the left and right opposed frame parts 8 and 9, which are pulled out and removed following the upper and lower opposed frame parts 2 and 5, have front and rear side walls 9a and 9b, as shown representatively in the one side frame part 9 in FIG. and a continuous bent surface 9c that is bent to expose in the in-plane direction.
is equipped with a recessed part 9d for the tip of the sliding door (not shown), and the front and rear side walls 9a, 9b ends, that is,
The open end edge side is installed so as to be embedded in the building frame A, and the anchors 12a and the differential bars 12 provided at a predetermined interval between the side walls 9a and 9b are welded and attached to the frame A. There is.

A steel fitting 1 is placed at the same position in the center of each longitudinal direction of these left and right opposing frame parts 8 and 9.
3 are similarly fixed to each other by welding.

The steel fittings 13 used as a pair for each of these opposing frames 2, 5; The projecting piece 15 is made of thick, integral steel, while the central part of the projecting piece 15 is provided with a locking through hole 16 with a relatively large diameter, making it disposable for each use. Welding is carried out with the welded substrate 14 facing each of the opposing frames 2, 5; 8, 9, and the protruding pieces 15 are arranged so as to protrude in the in-plane direction after being fixed.

On the other hand, 17 is a tension device, and this tension device 1
7 is equipped with a pair of hook-shaped latches 18, 18, one of which is fixed to the chain block 19 and the other to the hydraulic cylinder 20, and the length of the chain 21 installed between the chain block 19 and the hydraulic cylinder 20 is fixed to the hydraulic cylinder 20. It is expandable and retractable by operating the pump 22, so that the tension device 17 can freely compress the distance between the pair of latches 18, 18.

As shown in FIGS. 1 to 3, this tensioning device 17 includes locking through holes 1 of each pair of steel fittings 13, 13 fixed to each opposing frame portion 2, 5; 8, 9.
Since the hook-like latching fittings 18, 18 can be detachably latched to the latches 6, 16, the simultaneous extraction device of the present invention can be installed between the pair of steel fittings 13, 13 in a bridging manner. It is said that

In addition, 23 in the figure is a supporter used as necessary, and this supporter 23 prevents damage to the building wall part etc. by the abutting seat 24 at the longitudinal end, and also prevents damage to the building wall part etc. A stopper 25 that crosses this is used to support one of the opposing frames 2 and 5, whichever was pulled out earlier, in the middle, and to apply tensile force intensively to the other frame. It will be done.

On the other hand, FIGS. 4 to 7 show other examples of steel fittings used in the present invention. FIG. Steel plates 26, 26 are fixed by welding to the tip portions that will be used, respectively.
A steel shaft 27 is installed in a through hole between the plates 26, 26, and a protrusion 15 having a locking through hole 16 is provided on the steel shaft 27 to form a steel fitting 13a.

FIG. 5 also shows a steel plate 26 at the tip of the side walls 3, 3 of the frame section 2a, which is the upper frame, with its continuous curved surface exposed in the in-plane direction, similar to the frame sections 8, 9, which are the vertical frames. 26 is attached and the screws 28, 28 are screwed in to fix the steel fitting 13a. FIG. , 29 are locked in the locking holes 30, 30 of the side walls 3, 3, and the locking through hole 16 is fixed with a bolt nut 32 and a spacer 31 below.
The attached projecting piece 15 is provided on the spacer 31.

Furthermore, the steel fittings 13c in FIG.
Open holes 33, 33 in 3, and attach the hook rod 34 to these holes.
The structure is similar to that of the steel fitting 13a shown in FIGS. 4 and 5, except that the metal fitting 13a is fixed through the steel fitting 13a.

Note that the fixation of the steel fittings is not shown in the illustration, but
It is also possible to use a strong magnetic force or an adhesive.
It can be used again as long as it is not deformed.

In addition to the tension device shown above, for example,
A wire reel with a stopper that can wind and unwind the wire and maintain a desired unwinding length, or a wire reel with a turnbuckle in the middle or a shaft made by screwing together multiple rods. It is also possible to use a rod-like structure whose directional length is variable, and it is also possible to use driving force from a motor, pneumatic pressure from an air compressor, etc. to drive the structure.

In carrying out the present invention, the specific structures of the opposing frame, steel fittings, and latching fittings of the existing window frame,
The shape etc. may be changed as long as it does not go against the gist of the invention, and is not limited to the above.

[Effects of the Invention] The present invention is a pulling device for an existing steel window frame, which is attached to a building frame with the open edge side embedded in the building frame and the continuous curved surface exposed in the in-plane direction. , a pair of steel fittings that are fixed to the opposing frame portions of the window frame at the same longitudinal position and protruding in the in-plane direction, and having a locking through hole in the protruding portion; and a locking through hole of the steel fittings. Since the tensioning device is equipped with a tensioning device having a hook-like latching metal fitting that can be freely engaged and detached, conventionally, there is no hooking part for hooking the hook-like latching metal fitting of the tensioning device, so manual stripping work is required. It is now possible to install a tensioning device on the opposing frame, which is the vertical frame of the existing window frame of the sliding window that was targeted for this purpose, and pull it out, without the need for manual stripping work. To always be able to pull out and remove an existing steel window frame, to be able to do this efficiently, and to prevent inconveniences caused by abandoning pullout and removal in a building where various window frames are mixedly used.

In addition, the hook-like latching metal fitting is provided on the tension device, but since it is removably latched to the locking hole of the steel metal fitting that protrudes in the in-plane direction, the steel metal fitting itself can be attached independently. It can be fixed to the opposing frame portion, and even after being pulled out, the hook-shaped latching metal fitting can be easily removed, resulting in extremely high workability. On the other hand, the steel fittings can be made into a relatively compact piece-like piece with a simple structure, and since they are fixed at the same position in the longitudinal direction of the opposing frame, it is possible to efficiently apply a pulling load to the opposing frame. As described above, the present invention is an excellent invention that enables the opposing frame portion with the continuous curved surface exposed inward to be easily and reliably pulled out using a tensioning device, which has not been possible in the past.

[Brief explanation of the drawing]

Figures 1 a to d are front views showing the relationship with the existing steel window frame, Figure 2 is a vertical cross-sectional view of Figure 1 b, and Figure 3 is the side frame of Figure 1 d according to the embodiment. FIGS. 4 to 7 are enlarged longitudinal sectional views showing other examples of steel fittings. A... Building frame, 1... Existing steel window frame, 2, 5
...Upper and lower opposing frame parts, 8, 9...Right and left opposing frame parts, 9
a, 9b...Side wall, 9c...Bending continuous surface, 12a
... Anchor, 13, 13a to 13c ... Steel fitting, 14 ... Welding board, 15 ... Projection piece, 16 ...
Locking through hole, 17...Tension device, 18...Latching fitting, 26...Plate, 28...Screw, 29...
Locking protrusion, 30... Locking hole, 31... Spacer, 32... Bolt nut, 33... Through hole, 34
...Hook bar.

Claims (1)

[Claims] 1. A device for extracting an existing steel window frame that is attached to the building frame by embedding the open edge side in the building frame and exposing the continuous curved surface in the in-plane direction, the device being A pair of steel fittings that are fixed in the same position in the same direction and protrude in the in-plane direction, and have a locking hole in the protrusion, and can be releasably locked in the locking hole of the steel fittings. 1. A device for simultaneously pulling out an opposing frame portion of an existing window frame for window renovation, comprising: a pulling device having a hook-like latching fitting.