JPS62185991A - Method of removing existing sash window frame - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method for removing an existing sash window frame for window renovation.

Prior Art In old buildings, I! IMI! Sometimes the sash is removed and the window is renovated with a new sash. Existing 521 sashes that are subject to removal are often steel sashes, and due to issues such as the operability, sound insulation, and airtightness of the shoji (shoji), they can be replaced with aluminum sashes due to issues such as rawness and aesthetics. In addition, even when using aluminum sashes, it is necessary to replace those that were installed in the old days and have deteriorated in appearance or are corroded. It is gradually increasing.

Conventionally, the method of removing an existing one-ridge window frame from a building frame is to hang a chain between opposing frame members of the window frame and tension it vertically or horizontally, and then contract the chain using a chain block or hydraulic pressure to reduce the tension. In view of the drawbacks of the prior art, the purpose of the present invention is to separate the frame member from the building frame by applying the force for removing the frame +A only to the target frame member, and not to the other frame members. to use'
c'K <, Be sure to remove each frame (A one by one).
When it comes to impact or very small sashes, it is necessary to provide a way to remove the window frame.

Structure of the Invention In order to achieve the above object, the groove or frame member of the present invention constituting the existing window frame, in particular, any one frame portion 4A, the frame portion 'F/J Since the frame is separated from the building frame while applying a tensile force to both ends using the central part as a fulcrum, there is no need for any other frame members to support it, and the frame members can be removed individually. During removal, a pressing force is applied to the center of the frame member in the direction of the building frame, so when the frame member separates from the building frame! The gist of this method is to provide a method for removing an existing sash window frame with less damage and in which other frame members can be successively separated from the building frame by repeating the above operations.

Example Examples will be described below with reference to the drawings.

When removing the existing sash window frame F, a pressing force is applied to the center of the frame member composing it, and a tensile force is applied to both ends (Fig. 1).

The existing sash window frame F is assembled into a square frame from the left stone vertical frame member 1.1 and the upper and lower frame parts) r'A2.3, and iron bars 6 are buried in the building frame 5 made of concrete wall. Anchor 7
The entire frame member 1.2.3 is welded to the iron rod 6 via the frame members 1.2.3, thereby fixing the entire structure to the building frame 5 (Fig. 2). 11 (Figure 1). The main body 10 is formed into a T-shape with both arms 10b, 10b crossed at the base end of a support rod 10a, and oil portions 10c, 10c are provided at the tips of both arms 10b, 10b. Chains 11. are attached to both sleeves 10G and 10c.
11) A chain block is installed internally, and the chain 11 is pulled into the oil part 10C by rotating the handle 10d. The tip end surface of the support rod 10a is provided with grooves 10e, 10e, etc. that extend thereto to prevent it from coming off the frame member 1.2.3.
・ is formed (Figure 3).

Although the main body 10 has a bilaterally symmetrical shape as a whole, one arm 10b may be formed to be one inch longer than the other arm 10b.

A connecting jig 12 is replaceably attached to the tip of the chain 11, and the connecting jig 12 includes a pair of hooks 12a,
It consists of a conjugate of 12a (Fig. 2). However, as the connection jig 12, one consisting of - hooks, the frame part 4
．． (It may be welded and connected, and later discarded together with the frame members.) 1. Regarding the ease of removing the existing sash window frame F, the left and right vertical frames 1. 1. Remove the upper and lower frames (Δ2.3) one by one in order.The order does not matter, but first
It is particularly preferable to remove the existing structure 4], since it is possible to work at heights with the window ridge F in a firm state.

Therefore, referring to FIG. 1, to explain the case of removing the upper Azusa member 2 (hereinafter simply referred to as frame member 2), the connection jig 12 is hooked onto the frame member 2, and the tip of the support rod 10a of the main body 10 is The connecting jig 12 is attracted to the main body 10 by turning the handle 10d and drawing the chain 11 into the oil part 10C while pressing it against the frame member 2.

At this time, both handles 10d, 10d may be operated simultaneously by two workers, but it is also possible for - two workers to operate both handles 10d, 10d alternately. Chain 11.11 or oil part 10c, 10c
When the support rod 10a hits the frame member 2, the point where the frame member 2 is held down by the tip of the support rod 10a becomes the fulcrum 8, and the frame member 2 A pulling force acts on the end of the Therefore, when the chain 11.11 is roughly pulled in, the connecting fitting 12.1 of the frame member 2
The portion of the frame member 2 that is the hook and stopper is deformed by the tensile force (double-dashed line in FIG. 1), and the frame member 2 is finally peeled off from the building frame 5.

However, since the adhesion force to the building frame 5 is not uniform throughout the frame member 2, the frame member 2 may separate from the building frame 5 from one end first.

In this case, before the separation reaches (7 degrees or more), push up the frame member 10b on the separation side, operate the pans 1 to 10d on the opposite side, and hold the frame member 2. Other C
, jAj section, the pond end section can also be separated from the building frame 5. In order to ensure operational reliability, it is preferable to alternately separate the ends of the frame member 2 little by little so that the separation is not excessive compared to one end of the frame member 2 or the other end.

When the frame member 2 loses its bonding force with the building frame 5, the removal device P falls together with the frame member 2. With this, only the removal of the frame member 2 is completed, or the frame member 2 is
If the part is still connected to the building frame 5 by the anchor 7 or the like, the connection will not be broken by any further work, so the removal will not be completed. However, at this point, both ends of the central part of the fulcrum 8 have already been separated from the building frame 5 (dotted dotted line in Drawing 1), so insert an appropriate tool there and attach the anchor 7. The entire frame member 2 can be easily separated from the building frame 5 by cutting or fusing it, and it can also be removed by pulling or twisting the frame member 2.

Another Embodiment FIGS. 4 and 5 each show another embodiment of the removal device P. The removal device P in FIG. 10d is provided, and both chains 11 and 11 can be pulled in only by operating the handle 10d. For this purpose, a boosting mechanism using a worm gear is used in the main body 10, and the chain 11 is wound up with a roll (not shown). Further, a handle 14 for holding the main body 10 so as not to swing is provided in the extending direction of the support rod 10a.

When the removal device P is configured in this way, the handle 14
While holding the main body 10 parallel to the existing sash window frame F, both ends of the frame member 2 can be easily separated at the same time and to the same extent.

The removal device P shown in FIG. 5 has a turn baffle 11a, instead of a chain 11.
11a, and connecting jigs 12 and 12 are attached to the tips of the turn baffles 11a and 11a, respectively.

Since the turn baffles 11a, 11a can realize the function of boosting grooves, the overall structure can be greatly simplified.

As described in detail, according to the present invention, by using the central part of the frame member to be removed as a fulcrum and applying a pressing force to the central part, while applying a tensile force to both ends, l! Since the window frame is separated from the building frame, other frame members can be used as auxiliary shrines.
Since all the frame members can be removed, it is easy to remove the last remaining frame member. Also, since the center of frames A, A is held down during removal, the frame members can be easily removed. This has the advantage that there is less impact when separating from the building frame, and there is less risk of damage to the building frame due to removal.

[Brief explanation of drawings]

Figures 1 to 3 show the implementation status of the embodiment.
The figure is an explanatory front view, FIG. 2 is an enlarged cross-sectional view taken along the line A--A in FIG. 1, and FIG. 3 is an enlarged cross-sectional view taken along the line B--B in FIG. Figures 4 and 5 are front views of alternative removal devices, respectively. F... Existing sash window frame 1.2.3... Frame member 5... Building frame 8... Fulcrum

Claims (1)

[Claims] 1) When removing an existing sash window frame attached to a building frame, pull the center of the frame member that constitutes the existing sash window frame as a fulcrum to both ends of the frame member. An existing sash window characterized by applying force, separating the frame member from the building frame by the tensile force, and applying a pressing force in the direction of the building frame to the center of the frame member by a reaction to the tensile force. How to remove the frame.