JPH0232782Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a sash frame removal device used to remove an existing sash frame provided in an opening in a building.

(Prior art) An example of a method for renovating a sash frame installed in an opening in a building is to leave the existing sash frame as it is and replace it with a new sash frame that is formed to cover the sash frame. However, such a double structure has the disadvantage that the new opening size will be smaller than the existing one.

Therefore, since it is desirable to install a new sash frame after removing the existing sash frame, a device for removing the existing sash frame is required.

Conventionally, there has been a device as shown in FIG. 1 as a device for removing an existing sash frame as described above.

That is, this removal device 1 is capable of removing the sash frame 2 from the opening 3 by pulling the opposing parts of the sash frame 2 together and pulling the sash frame 2 together with this tensile force. The main body is a traction cylinder 4 operated by hydraulic pressure or the like, and the lower end side of the cylinder 4 is locked to the lower frame 2a of the sash frame 2.
A chain 5 is provided on the upper end side, and a hook 6 is provided at the end of the chain 5, and the hook 6 is installed in a state where it is locked to the upper frame 2b of the sash frame 2.

The upper frame 2b and the lower frame 2a are drawn toward each other by driving the cylinder 4 in the direction of contraction.

However, in the case of the conventional removal device 1 as described above, in most cases, only the weakly attached frame among the opposing upper and lower frames is removed, and both opposing upper and lower frames are removed at the same time. are extremely rare.

Therefore, it is necessary to reinstall the removal device 1 in a different position (for example, closer to the jamb) or to remove the sash frame 2 with a removal tool such as a crowbar after using the removal device 1. It had the disadvantage of being inferior in gender.

(Purpose of the invention) This invention was made in order to solve the conventional problems as described above, and it makes it possible to deal with frames that need to be removed in different directions once installed with respect to the sash frame. In addition to being easy to handle,
It is an object of the present invention to provide a sash frame removing device capable of individually and reliably peeling off the upper, lower, left, and right frames, respectively, in order to improve workability.

(Structure of the invention) The structure of the sash frame removing device according to this invention is as follows:
A telescoping traction device comprising a support that locks in an erected state to opposing peripheral walls of a building opening, a locking portion to a sash frame attached to the building opening, and a contraction of the traction device. two tension members supported by the peripheral wall of the building opening in an open state that resists the movement of the building; It is characterized by being rotatably mounted via a horizontal axis extending inward and outward directions of the opening.

(Example 1) This invention will be explained below based on the drawings.

FIGS. 2 to 5 and 8 are diagrams illustrating an embodiment of this invention.

That is, the sash frame removing device 10 includes a rod-shaped support 12 that is fixed in an erected state at opposing positions of the inner circumferential wall of the building opening 14 to which the sash frame 11 is attached, and a rod-shaped support 12 that is installed along the support 12. Consisting of a movable and rotatably attached connector 21, a traction device 13 detachable from the connector 21, and a tension body 24 with one end pivotally attached to the rotating shaft of the connector 21. has been done.

The support body 12 has a length that exceeds the height of the building opening 14 through which removal is to be performed, and on both ends thereof, stoppers 15 having a cylindrical shape and having protruding pieces 15a on the outside are slidable. Each stopper 15 is provided with a thumbscrew 16 whose threaded portion penetrates inside the cylindrical portion, so that the stopper 15 can be fixed at any position on the support 12. It's getting old.

Further, between each of the stoppers 15, 15, a support 18 is movably fitted, which also includes a fixing thumbscrew 16 and supports two connecting hooks 17 substantially parallel and horizontally.

The support body 12 engages the protrusion 15a of one stopper 15 with the lower surface of the wall 19 to which the upper frame 11a is attached at approximately the center of the sash frame 11, and the protrusion of the other stopper 15. It is mounted perpendicularly to the sash frame 11 by locking the piece 15a to the upper surface of the wall 19 to which the lower frame 11b is attached and fixing both stoppers 15,15.

The traction device 13 is composed of a hydraulic cylinder 20 that is driven to extend and contract, and its upper end is removably attached to a connecting tool 21 (to be described later), and its lower end is connected to a hook joint 22 via a shackle 30. As shown in FIG.
A letter-shaped hook 23 is suspended.

Two tension bodies 24 having substantially the same shape are used, and one end of each is rotatably connected with a bolt 24a so that the leg opening angle can be changed, and the other end of each is rotatably connected with a bolt 24a. The inner circumferential wall corner portions 14a, 14a of the building opening 14 are brought into contact with the inner circumferential wall corner portions 14a, 14a.

Furthermore, the connector 21, which is made up of two approximately triangular plates, is assembled using the bolt 24a and with bearings 21b, 21b interposed between the tension bodies 24, 24. By forming bolt insertion holes in the remaining two corners, the cylinder connecting bolt 2 can be selectively inserted.
0a, and the upper end connection position of the hydraulic cylinder 20 can be selected according to the dimensions of the building opening 14.

Furthermore, a locking tool 21a with both ends projecting in the horizontal direction is rotatably attached to the connecting tool 21 using a bolt 24a of the tension body 24,
This locking tool 21a is attached to the connecting hook 17 of the support body 12.
By removably locking the traction device 1
3 and the tension bodies 24, 24 are prevented from falling over. Therefore, the connecting device 21 allows the traction device 13 and the two tension bodies 24, 24 to move along the support 12 via the support 18, the hook 17 and the locking device 21a, The bolt 24 also serves as a horizontal axis in the interior and exterior directions of the building opening 14.
a, and can also be removed from the support 12 by releasing the hook 17.

In the figure, 25 is a tube that transmits hydraulic pressure to the hydraulic cylinder 20, and 26 is a manual pump for driving the hydraulic cylinder 20.

Sash frame removal device 1 configured as above
0 to first remove the lower frame 11b of the sash frame 11, after locking the hook 23 to the hook-shaped portion of the lower frame 11b, the other ends of the two tension bodies 24, 24 are removed. Lower inner peripheral wall corners 1 of building opening 14
4a and 14a.

When the manual pump 26 is operated to drive the hydraulic cylinder 20 in the direction of contraction (in the direction of the arrow in FIG. The lower frame 11b serves as a fulcrum, and since each of the tension bodies 24 is installed to resist the contraction of the hydraulic cylinder 20, the lower frame 11b is peeled off from the wall 19 by the tensile force caused by the contraction. At this time, the tension bodies 24, 2
4 is supported by the support 12 and will not fall because the locking tool 21a of the connector 21 is locked to the connection hook 17 of the support 12.

Next, to remove the rigid frame 11c of the sash frame 11, slide the support 18 against the support 12,
This support 18 is positioned approximately at the center of the support body 12, and as shown in FIG.
24, the connector 21 and the traction device 13 are rotated approximately 90 degrees. At this time, the hook 23
is locked at approximately the center of the rigid frame 11c, and the tension members 24, 24 are attached to the building opening 14 above and below the rigid frame 11c so as to form a triangular shape with the rigid frame 11c as one side. Upper inner peripheral wall corner 14b
and the other end portions are aligned with the lower inner circumferential wall corner portion 14a.

Thereafter, as described above, each tension body 24, 24
Then, the traction device 13 may be rotated in correspondence with the upper frame 11a or the other rigid frame 11c to remove each frame.

(Embodiment 2) FIG. 6 is a diagram illustrating another embodiment of this invention, in which the width dimension of the building opening is large when the sash frame removing device 10 in the above-mentioned embodiment is used. It shows a case.

That is, since the tension bodies 24, 24 form a triangular shape with one side of the frame to be removed, and are intended to firmly support the traction device 13,
The angle formed by one end side of the two tension bodies 24, 24 is
It is mechanically advantageous to set the angle to 90° or less.

At this time, as shown in Fig. 6, the building opening 3
4 has a relatively large lateral opening size, the other ends of the tension bodies 24, 24 are connected to the lower inner circumferential wall corner 34.
The angle formed by the upper end side when aligned with a and 34a is
Since the angle may exceed 90 degrees, predetermined positions of the tension bodies 24, 24 are connected by a chain 27 so that the angle does not widen beyond a certain angle of 90 degrees.

Therefore, in order to install the removal device 10 in the building opening 34, the other end of one side of the tension member 24 is attached to the lower inner circumferential wall corner 34 of the building opening 34.
The support body 12 is moved from the center of the sash frame 31 to one of the rigid frames 31c and fixed in a state aligned with the position a.

Note that the hook 23 provided on the traction device 13 of each of the above embodiments can be replaced depending on the cross-sectional shape of the sash frame 11, 31, and some examples thereof are shown in FIG. As shown in FIG. 9, a plurality of hooks 23 having a J-shaped cross section are attached to the hook joint 22, or a hook 33 forming a link mechanism is provided on the hook joint 22, as shown in FIGS. 9a and 9b. There is something.

As shown by the imaginary line in FIG. 9, the hook 33 forming this link mechanism is used when removing the frame member 35, which has no latchable part on the sash frame side and only has a plate-shaped protrusion 35a. It is mainly used, and is formed into a substantially parallelogram shape by four link rods 33a to 33d whose ends are rotatably connected, and the four link rods 33a to 33
By extending the ends of two adjacent link rods 33a and 33b of d to cross each other, a clamping portion 33e is provided which opens and closes as the link mechanism operates.

In this way, if the structure is such that the clamping part 33e that sandwiches the frame member 35 is provided at one end of the link mechanism, the clamping part 33e will move as it is pulled by the traction device 13 (see FIGS. 2 to 6). Since it is strongly pinched by the protruding piece 35a, the hook 33 will not easily come off during the removal operation.

Note that between the link rods 33a and 33b,
A tension coil spring 36 is tensioned so that the clamping portion 33e can be clamped and held by the protruding piece 35a even when not in a towed state.

Furthermore, in each of the above embodiments, the support 12
is fixed vertically to the sash frames 11, 31, but can be easily removed by loosening the thumbscrew 16 of the stopper 15, and can also be installed horizontally.

In addition, since the stopper 15 and the support 18 can be set at arbitrary positions on the support body 12, the sash frame removal device can be installed in accordance with building openings having various opening sizes.

Further, in each of the above embodiments, the hydraulic cylinder 20 is used as the traction device 13, but a chain book, a lever block, etc. may also be used.

(Effects of the invention) As explained above, according to the sash frame removal device of this invention, there is provided a support body that is fixed to the opposing peripheral walls of a building opening in an erected state, and a support body that is attached to the building opening. a retractable traction device equipped with a locking portion to a sash frame in which the sash frame is placed; and two tension bodies supported by the building opening peripheral wall in a spread state that resists contraction of the traction device; Since the traction device and the tension body are attached to the support body so that they can move along the support body and be rotatable through a horizontal axis extending in and out of the building opening, it is possible to easily remove the existing equipment. It can be easily and firmly installed on the sash frame, and the tension fulcrum can be set within the sash frame, and the traction device and tension body can be aligned in the direction of each frame. The upper, lower, left, and right sides of an existing sash frame can be removed efficiently and reliably using only the sash frame removing device, and as a result, work efficiency is significantly improved.

[Brief explanation of the drawing]

FIG. 1 is a front view illustrating a conventional sash frame removing device, FIGS. 2 and 3 are side views and front views illustrating a sash frame removing device according to an embodiment of this invention, and FIG. 4 is a sash frame removing device. FIG. 5 is a plan view of the removal device; FIG. 5 is a front view illustrating the installation state when removing the rigid frame; FIG. Front view illustrating the structure of the upholstery, No. 7
The figure is a side view of a hook joint with multiple hooks, Figure 8 is an enlarged view of the hook joint in Figure 2, and Figures 9a and b are side and front views of a hook with a link mechanism. be. 10...Sash frame removal device, 11, 31...
Sash frame, 12... support body, 13... traction device,
14, 34...Building opening, 21...Connector, 2
3, 33...Hook (locking part), 24...Tension body.

Claims (1)

[Scope of utility model registration request] A telescoping traction device comprising a support that locks in an erected state to opposing peripheral walls of a building opening, a locking portion to a sash frame attached to the building opening, and a contraction of the traction device. two tension members supported by the peripheral wall of the building opening in an open state that resists the movement of the building; A sash frame removal device characterized in that it is rotatably mounted via a horizontal axis extending in and out of an opening.