JPH0739793B2 - Chuck device for window frame removal - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a window frame removing chuck device used for removing an old window frame provided in a building.

[0002]

2. Description of the Related Art A conventional window frame removing device is one in which a hook is attached to both ends of a tensioning device composed of, for example, a hydraulic cylinder or a chain block, and these hooks are hung on the window frame to form a hydraulic cylinder. Is reduced so that the window frame is peeled from the building opening to which it is attached. However, the one using the hook has a problem that it cannot be used in a portion where the hook cannot be hung and is easily detached.

Further, as a conventional window frame removing device, an iron plate is welded to the window frame and the end of the pulling device is connected to the iron plate by a pin or the like, or a hole is provided in the window frame to connect the pulling device with a bolt. Some are connected to members. But,
In any of these cases, there is a problem that workability is poor because it takes time and labor for welding, bolt connection, etc., and there are many cases where work is performed at high places.
There is a problem that it is dangerous because it uses a firearm.

In view of these problems, it is an object of the present invention to provide a window frame removing chuck device which can be easily and firmly coupled to a window frame and has good workability. .

[0005]

To achieve this object, a window frame detaching chuck device of the present invention comprises a shaft connected to a connecting end of a window frame detaching tensioning device and the shaft. A support body attached movably in the axial direction, and a pair of opposing window frame holding bodies pivotally attached to the support body in an openable and closable manner;
An adjusting body mounted between the supporting body pivotally attaching portion of the shaft and a connecting portion of the tensioning device so as to be positionally adjustable in an axial direction thereof; the adjusting body and the window frame holding bodies; And an opening adjustment mechanism that reduces the opening of both window frame holding bodies as the adjustment body moves away from the support body, and means for urging the support body in a direction closer to the tension device. It is characterized by having and.

Another window frame removing chuck device of the present invention includes a shaft connected to a connecting end portion of a window frame removing tensioning device, and a shaft positionably attached to the shaft. An adjusting body, a supporting body attached to the adjusting body so as to be movable in a predetermined range in the axial direction of the shaft, and a pair of window frame holding bodies pivotally attached to the supporting body so as to be openably and closably opposed to each other. A link for connecting the end of the shaft opposite to the connecting part with the tension device and each of the window frame holding bodies, and means for urging the support in a direction approaching the tension device. Is characterized by.

[0007]

The first window frame removing chuck device of the present invention comprises:
It has the above-mentioned structure, and adjusts the position of the adjusting body in the axial direction with respect to the shaft to adjust the opening degree between both window frame holding bodies according to the width of the window frame to hold the window frame. . Then, when the shaft is pulled by the pulling device, the shaft moves with respect to the support while the window frame holding body holds the window frame, and the opening degree of the window frame holding body becomes narrower. The frame clamping body further strongly clamps, and in this state, the window frame is peeled off by the tensioning device.

[0008]

1 is a side sectional view showing a chuck device for removing a window frame according to the present invention in a working state. In FIG.
Reference numeral 1 is a chuck device of the present invention, 2 is a tension device, and 3 and 4 are an upper frame and a lower frame, respectively, which constitute an old window frame. The tensioning device 2 of this example is connected to a hydraulic cylinder 5, a hydraulic pump 6 that is manually driven to operate the hydraulic cylinder 5, and between the hydraulic cylinder 5 and the chuck device 1 by pins 7 and 8, respectively. The upper frame 3 is sandwiched by the chuck device 1, the hook 10 is hooked on the door roller running portion 4a of the lower frame 4, the chain block 9 is operated to stretch the chain 11, and the hydraulic pump 6 is operated. By contracting the hydraulic cylinder 5, the upper frame 3 and the lower frame 4 are pulled as shown by the arrow a, and these are peeled off from the window frame mounting surface of the building opening.

FIGS. 2 and 3 are partial cross-sectional front views showing the operation of adjusting the opening degree of the window frame holding bodies 12, 12 and the pulling operation by the pulling device 2 of the chuck device of this embodiment. FIG. 4 is a left side view of FIG. 2 to 4, reference numeral 13 denotes a shaft, and one end (hereinafter referred to as a tail end) of the shaft 13 has a fork 14 detachably connected to the connecting end portion of the pulling device 2 by the pin 8. A small diameter portion 15 with a stopper 16 is formed on the side of the shaft 13 opposite to the hawk 14 (hereinafter referred to as the tip), and a threaded portion 17 is formed in the middle portion. 19 is a support for the window frame holding body 12,
A cylindrical body 20 slidably fitted to the small-diameter portion 15 is fitted and welded into a hole in an intermediate portion of the support body 19, and the forks 2 are provided at both ends thereof.
1 is formed. The window frame holding body 12 forming a pair has a pin 22 at each intermediate portion of the fork 21 at both ends of the support body 19.
Thus, the tip ends of the pair of opposing window frame holding bodies 12 are configured to be freely openable and closable by being pivotally pivoted. The window frame holding body 12 may be integrally formed with a claw that bites into the upper frame 3, but in the present embodiment, the claw 23 is formed separately from the main body 24 of each window frame holding body 12. Then, a bolt 25 is attached to the tip of the main body 24 of each window frame holding body 12.
By detachably attaching the claw 23 by
If 3 is worn, it can be replaced with a new one.

Reference numeral 26 is an opening adjusting mechanism for adjusting the interval (opening) of the claws 23, 23 to the width of the upper frame 3, and the opening adjusting mechanism 26 of this embodiment is screwed onto the threaded portion 17 of the shaft 13. Adjusting body 27, and a pair of guides 30 fixed to the front and back surfaces of the adjusting body 27 by bolts 28 and having inclined surfaces 29 on both sides,
30 and a guide roller 31 attached to the tail end of the window frame holding body 12 to form a pair.
A tension spring 32 for urging the support 12 toward the tension device 2 is interposed between the tail ends of the two.

In this construction, as shown in FIG. 2, the force of the tension spring 32 pulls the window frame holding bodies 12, 12 in the direction in which the tail ends approach each other (the direction opposite to the arrow c). Reference numeral 31 is in pressure contact with the building slope 29 of the guide 30, whereby the window frame holding body 12 is urged downward (in the drawing), that is, in the direction in which the support body 19 approaches the adjusting body 27. Here, when the shaft 13 is rotated in the direction of the arrow b with respect to the adjusting body 27 or the like, the adjusting body 27 causes the shaft 13 to rotate.
The guide 30 integrated with the adjusting body 27 moves downwards as indicated by the chain double-dashed line, so that the contact surface of the inclined surface 29 with respect to the guide roller 31 of the guide 30 changes. Then, the tail ends of the pair of window frame holding bodies 12, 12 expand as shown by arrow c, and the space between the claws 23, 23 is reduced as shown by arrow d. When the shaft 13 is rotated in the opposite direction, the distance between the claws 23, 23 increases. That is, the opening degree of the window frame holding bodies 12, 12 can be adjusted.

Thus, when the opening degree is adjusted and the upper frame 3 is sandwiched between the claws 23 as shown in FIG. 3, and the tension device 2 is connected by the pin 8, the hydraulic cylinder 5 is contracted. Since the claw 23 is fixed to the upper frame 3, the shaft 13 descends as indicated by arrow e. In this way, as the shaft 13 is lowered, the guide 30 is also lowered as shown by the chain double-dashed line, and the slanted surfaces 29 on both sides of the guide 30 guide the tail end sides of the pair of window frame holding bodies 12 via the guide rollers 31. Since the claws 23, 23 are pushed open as described above, the claws 23, 23 move in the direction of decreasing the distance as shown by the arrow d and further dig into the upper frame 3, and the pulling operation is started from the state where the coupling is strengthened.

FIG. 5 shows a modified example of the chuck device shown in FIGS. 1 to 4, in which the guide 30 and the guide roller 31 are provided.
Instead of, the link 33 and the pin 34 are provided between the adjusting body 27 and the tail end of the window frame holding body 12 so that the left and right links 33
The lower angle α formed by is connected so as to form an acute angle, and the same operation as described above can be performed by this example.

FIGS. 6 and 7 show another embodiment of the present invention. In this embodiment, a nut-shaped adjusting body 27 screwed into the threaded portion 17 of the shaft 13 and having a square outer periphery is used. The square hole 37 at the center of the support 12 is fitted so as to be vertically movable (see FIG.
(See (B)), the support body 12 is vertically movable between the upper and lower stoppers 27a and 27b of the adjusting body 27, and the support body 19
Pin the window frame holding body 12 to the forks 21 formed at both ends of the
It is pivotally attached by 2 and the tip of the shaft 13 and the portion of the window frame holding body 12 on the tip side of the support body 19 are linked by a link 35 and a pin 36.
Thus, the left and right links 35, 35 are connected so that the upper angle β is an acute angle, and the tension spring 32 is interposed between the tail ends of the window frame holding body 12.

Also in this example, as shown in FIG. 6, the tension spring 32 receives a force in the direction in which the tail ends of the window frame holding bodies 12 come close to each other, so that the window frame holding body 12 is pin 22.
The support 19 is pushed up relative to the shaft 13 by the force of rotating the claw 23 in the opening direction about the stopper 27a at the lower portion (on the drawing) of the adjusting body 27. Is pressed against.

Here, in FIG. 6, the shaft 13 is attached to the support 1
When the support 19 is rotated in the direction of the arrow f (or the opposite direction) with respect to 9 or the like, the support 19 is below the adjusting body 27.
The window frame holding body 12 moves up (or moves down) with respect to the shaft 13 as shown by a two-dot chain line while being pressed against the shaft 13, and thereby the tip end side of the window frame holding body 12 shifts toward the shaft 13 side by the link 35 ( Or, the opening degree becomes small (large). Ie nail 2
The opening degrees of 3 and 23 are adjusted.

By adjusting the opening as described above, the claws 23, 23
When the upper frame 3 is sandwiched between the shafts 13 and the shaft 13 is pulled by the pulling device 2 as shown in FIG. 7A, the shaft 13 is lowered with respect to the support 19 and the window frame holding body 12, thereby linking. Since the claw 23 side is pulled toward the shaft 13 side in the direction of arrow d via 35, the claw 23 bites into the upper frame 3 more and more, and the window frame holding body 12 is firmly fixed to the upper frame 3.

Although the present invention has been described above with reference to the embodiments, the present invention is not limited to the above embodiments, but the window frame holding body 12, the shaft 13, the support 19, the opening adjusting mechanism 26, and the biasing means. Or about these combinations, various changes,
Can be added.

[0019]

According to the present invention, since the opening of the window frame holding body can be adjusted by changing the position of the adjusting body with respect to the shaft, the width of the window frame can be easily accommodated, and the window frame can be easily adjusted. Since it is sandwiched by the sandwiching body, the chuck device can be easily fixed to the window frame and workability is improved as compared with the conventional welding or bolt connection. Moreover, since the opening degree of the window frame holding body is narrowed by pulling the shaft, the pulling action increases the bonding strength with respect to the window frame, and a strong connection is achieved.

[Brief description of drawings]

FIG. 1 is a side view showing a window frame removing device including an embodiment of a chuck device according to the present invention in a window frame removing operation state.

FIG. 2 is a partial cross-sectional front view showing the opening adjustment operation of the chuck device of the present embodiment.

FIG. 3 is a partial cross-sectional front view showing the pulling operation of the chuck device of the present embodiment by the pulling device.

FIG. 4 is a left side view of FIG.

FIG. 5 is a modification diagram of FIGS. 1 to 4;

FIG. 6 is a partial cross-sectional front view showing the opening degree adjusting operation of the chuck device according to another embodiment of the present invention.

FIG. 7 is a partial cross-sectional front view showing the pulling operation of the chuck device of the embodiment of FIG. 6 by the pulling device.

[Explanation of symbols]

 1 Chuck Device 2 Tension Device 3 Upper Frame 5 Hydraulic Cylinder 9 Chain Block 12 Window Frame Clamping Body 13 Shaft 19 Supporting Body 27 Adjusting Body 26 Opening Adjustment Mechanism 32 Tension Spring

Claims (2)

[Claims] 1. A shaft connected to a connecting end of a pulling device for removing a window frame, a support movably attached to the shaft in the axial direction thereof, and pivotally attached to the support so as to be openable and closable. A pair of opposed window frame holding bodies, and an adjusting body mounted between the support body pivotally connecting portion of the shaft and the connecting portion of the tension device so as to be positionally adjustable in the axial direction thereof. An opening degree adjusting mechanism which is provided between the adjusting body and each of the window frame holding bodies, and which reduces the opening degree of both window frame holding bodies as the adjusting body moves away from the support body; A chucking device for removing a window frame, comprising: a means for urging the tensioning device in a direction approaching the tensioning device. 2. A shaft connected to a connecting end of a pulling device for removing a window frame, an adjusting body attached to the shaft so as to be positionally adjustable in the axial direction thereof, and a shaft of the shaft attached to the adjusting body. A support body attached so as to be movable in a predetermined range in the axial direction, and a pair of window frame holding bodies pivotally attached to the support body so as to be openably and closably opposed to each other,
A link connecting the end of the shaft opposite to the connecting part with the tension device and each of the window frame holding bodies, and means for urging the support in a direction approaching the tension device. Characteristic window frame removal chuck device.