JPH0236751B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an old window frame removing device.

Conventionally, when renovating an old window frame made of wood or iron to a new window frame made of aluminum, etc., the old window frame is removed from the building base using a tensioning method, and the new window frame is then buried in the building base. is taken. To remove the old window frame using this tensioning means, use a chain block or the like as the tensioning means, stretch the chain block between the upper and lower or left and right opposing frames, and pull and remove the opposing frames from the building base at the same time. Alternatively, a so-called "horse" is provided on the base of the frame to be removed by tension, and a chain block or the like installed on the "horse" is used.
The frame was pulled and removed from the base.

When simultaneously pulling and removing the opposing frames, there is a problem in that the frame with weaker adhesion to the base is pulled first, and the one with stronger adhesion cannot be removed. In addition, in cases where a ``horse'' is provided, the structure for fixing the ``horse'' to the base is complicated, and the ``horse'' must be reset for each frame that is to be removed, making construction cumbersome. In addition, the moment the frame separated from the base, there was a risk that the horse would fall from the building base together with the frame, which was a safety problem.

Therefore, in order to solve the above-mentioned problems, it has already been proposed to extend a support between the inner peripheral surfaces of the window opening and attach a tensioning means to the support to pull out the old window frame (for example, (See Figure 5 of 1981-9979).

However, in this conventional method, the pillars were installed in the vertical or horizontal direction and each old window frame was pulled out.For example, if the pillars were installed in the vertical direction and the upper and lower old window frames were pulled out, the next It was very troublesome to have to reposition the pillars horizontally and then pull out the old window frames on the left and right sides.

Therefore, the present invention has been devised in view of the above problems, and has an extremely simple structure that can reliably and firmly hold the tensioning means in a predetermined position within the window space, and can be set in one time. To provide an old window frame removing device capable of removing all upper and lower, left and right frames. Therefore, the feature is that in an apparatus for removing an old window frame from a building base by a tensioning means, a support that crosses the window space along the pulling direction of the tensioning means is removably fixed to the base side. In addition, a tensioning means located within the window space is pivotally connected to the midway portion of the column.

Embodiments of the present invention will be described in detail below with reference to the drawings.

What is shown in FIGS. 1 and 2 is a first embodiment of the present invention. 1 is the building base on which the old window frame 2 is buried. 3 is a vertical support, which is provided so as to vertically cross the window space S. 4 is a horizontal support, which is provided so as to cross the window space S in the left-right direction.
Each support column 3, 4 is configured to be expandable and contractible.
Specifically, it has a double-tube structure in which two types of square pipes, large and small, are slidably inserted in the longitudinal direction, and by inserting a bolt or the like into a positioning hole 3a made on the side of the square pipe, the size can be adjusted. The square pipes are connected and fixed to form supports 3 and 4.

Brackets 5 are removably protruded from the upper and lower ends of the vertical support 3, respectively, and jack bolts 6 are screwed onto the brackets 5. The vertical support 3 is fixed to the base 1 by abutting and tensioning the jack bolt 6.

A support bracket 8 is attached to a midway portion of the vertical support 3 so as to be vertically adjustable and fixed. Details of this support bracket 8 are shown in FIG. A horizontal strut attachment portion 9 is provided on the side surface of the support bracket 8, and the horizontal strut 4 is removably fixed to the attachment portion 9. As shown in FIG. 2, jack bolts 11 are also screwed into both ends of the horizontal support 4 via brackets 10.
are in contact with the left and right edges of the base 1, and the horizontal support 4 is connected to the base 1.
It is fixed at

Thus, the support bracket 8 is reliably and firmly held at a desired position within the window space S by the vertical struts 3 and the horizontal struts 4.

As shown in FIG. 3, a support arm 13 is rotatably connected to the support bracket 8 via a support shaft 12. Positioning pieces 14 and 15 are provided protruding from the support bracket 8 and the arm 13, and two positioning pieces 14 are provided on the bracket side at mutually orthogonal positions, and one positioning piece 15 is provided on the arm 13 side. . Positioning piece 14 on the bracket side and positioning piece 15 on the arm side
are superimposed, and a pin 16 is attached to both positioning pieces 14 and 15.
By inserting the bracket 8 and the arm 1
3, positioning is performed every 90 degrees.

The support arm 13 has opposing wall portions 13a, and a horizontal elongated hole 17 is provided in the wall portion 13a. A hydraulic cylinder 18, which is illustrated as a tensioning means, is provided between the wall portions 13a. That is, boss portions 19 are protruded from both sides of the hydraulic cylinder 18, and the boss portions 19 are rotatably and movably fitted into the elongated hole 17, so that the hydraulic cylinder 18 is held on the support arm 13. has been done. A chain 21 etc. is connected to the piston 20 of this hydraulic cylinder 18, and a hook 2 is attached to the tip of the chain 21.
2 is provided, and the hook 22 is locked to the old lower frame body 2a. (State shown in FIG. 1) From the state shown in FIG. 1, if the piston 20 of the hydraulic cylinder 18 is reduced, the old lower frame body 2a is pulled and removed from the building base 1. At this time, the hydraulic cylinder 18, which is a tensioning means,
3 and each strut 3 via the support bracket 8.
4, it can be pulled and removed extremely safely.

If you want to remove the old upper frame body 2b, move the hydraulic cylinder 18 to the boss part 19 from the state shown in FIG.
It is sufficient to rotate the piston 20 around the upper frame body 2b so that the upper frame body 2b faces the piston 20. Furthermore, when removing the left and right side frames 2c and 2d, the support arm 13 is attached to the support shaft 12.
All you have to do is rotate it 90 degrees.

In this way, the tension means 18 can be reliably held within the window space S by the pillars 3 and 4 having an extremely simple structure, and moreover, all the frames 2 can be
a, 2b, 2c, and 2d are removed. Furthermore, since the columns 3 and 4 are expandable and retractable, the columns 3 and 4 can be fixed to the building base 1 even if the window dimensions change. Further, since the tensioning means 18 is provided through the elongated hole 17 of the support arm 13, even if the thickness of the base 1 changes, the tensioning means 18 can be positioned at the center of the frame 2.

FIG. 4 shows a second embodiment of the present invention, in which the lower edge side of the building base 1 is thicker than the upper edge side. Therefore, the lower end of the vertical support 3 is The lower edge faces the upper surface. Also, the horizontal support 4 is the vertical support 3.
It is directly attached to the interior of the vehicle, and FIG. 5 shows a drawing of the attachment section viewed from the indoor side. That is, the fifth
As shown in the figure, the vertical support 3 and the horizontal support 4 are connected via a reinforcing plate 23. Therefore, the support bracket 8 provided in the middle of the vertical support 3
The support bracket 8 and support arm 13 in this case are not provided with a horizontal support attachment part.
The details are shown in FIG. The other configurations are the same as those of the first embodiment.

What is shown in FIG. 7 is a third embodiment of the present invention, in which a clamp arm 24 is provided at the upper part of the vertical support 3 so as to protrude so as to cut through the window space S.
4 is provided with an auxiliary support 25 parallel to the vertical support 3,
A jack bolt 26 provided on the auxiliary column 25
The upper part of the vertical support 3 is fixed to the base 1 by holding the base 1 in the thickness direction with a jack bolt 27 provided at the upper end of the vertical support 3.

FIG. 8 is a drawing showing the attachment relationship of the clamp arm 24, the auxiliary column 25, and the vertical column 3.
Further, the imaginary line shown in the middle of the vertical support 3 in FIG. 7 also shows the case where the horizontal support 4 is fixed to the vertical support 3 via a fixture 28 provided thereon.

What is shown in FIG. 9 is a fourth embodiment of the present invention, in which the lower part of the vertical support 3 is fixed by holding the base 1 in its thickness direction. Further, the horizontal support 4 is not divided by the vertical support 3, but is fixed as a single piece to the front surface of the vertical support 3 via a fixture 29, the details of which are shown in FIG.

What is shown in FIG. 11 is a fifth embodiment of the present invention, in which a hydraulic cylinder 18' is shown as the tensioning means.
However, there are independently operated pistons 20' at both ends,
20', and if such a double cylinder 18' is used, the opposing frames can be removed at the same time. 30 is a hydraulic pump that operates each piston. Further, in this fifth embodiment, the lower end of the vertical support 3 is placed on the floor surface.

Note that the present invention is not limited to the above embodiments. For example, the tensioning means may be a chain block or other screw means. It is also possible to use a cross-shaped cylinder as the hydraulic cylinder and provide each cylinder with a piston that can be operated independently so that all the frames can be pulled and removed at the same time.

As detailed above, according to the present invention, the tension means can be firmly and securely held in a predetermined position in the window space with a simple structure, and all the frames can be removed in one set. It can be put to practical use and has great effects.

[Brief explanation of drawings]

The figures show embodiments of the present invention; FIG. 1 is a longitudinal sectional view of the first embodiment, FIG. 2 is a sectional view taken along the line taken from FIG. 1, and FIG. 3 is a perspective view of essential parts of the first embodiment. , FIG. 4 is a vertical cross-sectional view of the second embodiment, FIG. 5 is a view taken from FIG. 7 is a longitudinal cross-sectional view of the third embodiment,
Figure 8 is a sectional view taken along the - line in Figure 7, and Figure 9 is a cross-sectional view of Figure 4.
A vertical cross-sectional view showing the embodiment, FIG. 10 is the − of FIG. 9.
The line cross-sectional view and FIG. 11 are longitudinal cross-sectional views showing the fifth embodiment. 1...Building base, 2...Window frame, 3...Vertical support,
4... Horizontal support, 18... Tension means.

Claims (1)

[Claims] 1 The vertical support and horizontal support are connected and fixed in a cross shape,
The vertical support and the horizontal support are fixed to a building base so as to cross the window space vertically and horizontally, a support bracket is fixed to the vertical support, a support arm is rotatably attached to the support bracket, and the support arm is rotatably attached to the support bracket. An old window frame removing device characterized in that a tensioning means for pulling the old window frame is attached to the arm.