JP3169291B2 - Sash window sudden rotation prevention device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for preventing rapid rotation of a sash window, and more particularly, to providing a vertical support shaft on one side of a window frame, and moving the window frame indoor or outdoor along the support shaft. The present invention relates to an abrupt rotation preventing device for preventing a double-turn window formed rotatably from rotating suddenly due to wind or the like.

[0002]

2. Description of the Related Art Conventionally, various sash windows have been used in houses. As such a sash window, for example, in addition to a window that is opened and closed by sliding like a sliding window, by rotating about a horizontal or vertical support shaft as a so-called rotating window, Also, window frames that open and close windows were provided.

[0003] In recent years, the rotating window can be opened not only from the sash frame position in either the outdoor direction or the indoor direction but also from the sash frame position in both the outdoor direction and the indoor direction. A so-called casement window that can be used has also been provided. Also, so-called two-axis case windows having rotation axes in both the left and right frames or the upper and lower frames of the window frame have been provided.

[0004]

In the above-mentioned sash window, even if the wind or the like hits the window strongly, the window or the like does not open due to the influence of the wind or the like. Is not limited to double casement windows, double-axis casement windows, but the windows may suddenly open depending on the direction of the wind,
Or there was a situation where it suddenly closed.

When the window is suddenly opened or closed, the window hits a wall or abuts a sash frame or the like fixing the window, thereby breaking the window glass fitted in the window frame. There was a situation that would happen. The problem to be solved by the present invention is to provide a rapid rotation device for preventing an accident or the like caused by rapid rotation in such a conventional rotating window. That is, the present invention provides a rapid rotation preventing device on a spindle for rotating the rotating window, and can slowly open and close when trying to open and close the window frame.
An object of the present invention is to provide a device for preventing rapid rotation of a sash window such that when the window is suddenly opened or closed, the window cannot be rapidly opened or closed.

[0006]

SUMMARY OF THE INVENTION The present invention is to achieve the above object. That is, the rapid rotation preventing device for a sash window according to claim 1 includes a frame-shaped sash frame (40),
In a sash window having a window frame (60) located inside the sash frame (40) and a rotation axis that pivotally supports the window frame (60) so that the window frame (60) can be opened and closed with respect to the sash frame (40), To the sash frame (4
0), is formed by a window frame support shaft (71) which does not rotate with respect to the window frame support shaft (71), and is loosely mounted so as to be rotatable with respect to the window frame support shaft (71).
A first rotating body (72) and a second rotating body (73) fixed to the window frame (60) so as to rotate in accordance with the rotation of (0),
(71) has two stationary bodies that do not rotate with respect to the sash frame (40), one stationary body has a stationary first surface (71A), and the other stationary body has a stationary second surface (74A). ), The first rotating body (72)
The rotating first surface (72
A), while the second rotating body (73) is provided with a continuous rotating second surface (73A) facing the stationary second surface (74A), at both ends of the rotating shaft, a stationary first surface (71A) and stationary second surface (74
A), or arranged so that the rotating first surface (72A) and the rotating second surface (73A) are located, the stationary first surface (71A) and the rotating first surface (72A)
At the same time, the rotation control first spring (75) is wound, and over the stationary second surface (74A) and the rotation second surface (73A), the rotation direction of the rotation control first spring (75) is the same. The rotation control second spring (76) is formed by winding.

According to a second aspect of the present invention, there is provided a device for preventing rapid rotation of a sash window, comprising: a frame-shaped sash frame (40);
Window frame (60) located inside the sash frame
(40) a sash window having a rotating shaft that can be opened and closed so as to be openable and closable, wherein the rotating shaft is formed by a window frame supporting shaft (71) that does not rotate with respect to the sash frame (40); A first rotating body (72) fixed to the window frame (60) so as to be rotatable with respect to the support shaft (71) and rotated in accordance with the rotation of the window frame (60);
And a second rotating body (73), the window frame support shaft (71) includes two stationary bodies that do not rotate with respect to the sash frame (40), and one stationary body has a stationary first surface (71A ), The other stationary body has a stationary second surface (74A), and the first rotating body (72) has a stationary first surface (71A).
A) The rotating first surface (72A), which is continuous opposite to (A), is
(73) is provided with a continuous rotating second surface (73A) facing the stationary second surface (74A), and at both ends of the rotating shaft,
Placed such that the stationary first surface (71A) and the rotating second surface (73A), or the rotating first surface (72A) and the stationary second surface (74A) are located,
While winding the rotation control first spring (75) over the stationary first surface (71A) and the rotating first surface (72A), the stationary second surface (74A)
And the rotation second surface (73A), the rotation control first spring (75)
Is formed by winding a rotation control second spring (76) having the opposite winding direction.

Further, the device for preventing rapid rotation of the sash window according to claim 3 is a technical limitation of the device for preventing rapid rotation of the sash window according to claim 1 or 2, and the stationary first surface ( 71A) is formed so as to be provided on the window frame support shaft (71), and the stationary second surface (74A) is provided separately from the window frame support shaft (71) and is attached to the window frame support shaft (71). It is characterized in that it is formed so as to be provided on the window frame support shaft end member (74) to be fixed.

Furthermore, the device for preventing rapid rotation of the sash window according to claim 4 is a technical limitation of the device for preventing rapid rotation of the sash window according to claim 1, 2, or 3. The window consists of two parallel rotating axes that support the window frame (60) so that it can be opened and closed with respect to the sash frame (40).
(60) The vertical frame (61) has a two-axis double-sided window, and each rotating axis is a pair of window frame supporting shafts that do not rotate with respect to the sash frame (40).
It is characterized by being formed by (71).

[0010]

According to the device for preventing rapid rotation of the sash window according to the first aspect, the following operation is provided. A sash window provided with a device for preventing rapid rotation of a sash window according to claim 1, wherein the window frame (60) is opened or closed with respect to the sash frame (40). An attempt is made to rotate the frame (60) in one direction. It is assumed that the rotation direction is opposite to the winding direction of the rotation control first spring (75) and the rotation control second spring (76).

Then, on the stationary first surface (71A) around which the rotation control first spring (75) is wound and the rotation first surface (72A),
The first rotating body (72) is rotated together with the window frame (60) by the rotation control first spring (7).
Rotate in the winding direction of 5). On the other hand, the stationary body including the stationary first surface (71A) remains stationary with respect to the sash frame (40). At this time, the portion of the rotation control first spring (75) wound around the first rotation surface (72A) is rotated by the frictional force generated on the contact surface with the first rotation surface (72A). ), The portion of the rotation control first spring (75) wound on the stationary first surface (71A) is a frictional force generated on the contact surface with the stationary first surface (71A). Try to keep it still. Here, while the rotation of the window frame (60) continues, the frictional force generated between the rotation control first spring (75) and the stationary first surface (71A) and the rotation first surface (72A) becomes the rotation control first spring (75A). It is assumed that the spring diameter of one spring (75) works so as to be expanded.
Then, the frictional force generated between the rotation control first spring (75) and the stationary first surface (71A) and the rotation first surface (72A) hinders the rotation of the window frame (60) with respect to the sash frame (40). Does not.

However, as described above, the rotation control first spring
While the rotation of the window frame (60) in the opposite direction to the winding direction of (75) continues, the stationary second surface (74A) on which the rotation control second spring (76) is wound
And the rotation second surface (73A), the rotation control second spring (7
6) and the frictional force generated between the stationary second surface (74A) and the rotating second surface (73A) acts to reduce the diameter of the rotation control second spring (76). Therefore, the window frame (60) is hardly rotated by the frictional force, and as a result, the window frame (60) cannot be rapidly rotated with respect to the sash frame (40).

[0013] Contrary to the above-mentioned case, the window frame (60) of the sash window provided with the sash window rapid rotation preventing device according to the first aspect of the present invention is connected to the rotation control first spring (75) and the rotation control first spring (75). The two springs (76) are rotated in the same direction as the winding direction. In this case, while the rotation of the window frame (60) continues, the frictional force generated between the rotation control first spring (75) and the stationary first surface (71A) and the rotation first surface (72A) is Since the control first spring (75) acts to reduce the spring diameter, the window frame (60) becomes difficult to rotate, and as a result, the window frame (60) suddenly moves with respect to the sash frame (40). Cannot be rotated.

However, as described above, the rotation control first spring (7
While the rotation of the window frame (60) in the same direction as the winding direction of 5) continues, the stationary second surface (74A) on which the rotation control second spring (76) is wound
And the rotation second surface (73A), the rotation control second spring (7
6) and the frictional force generated between the stationary second surface (74A) and the rotating second surface (73A) acts to expand the diameter of the rotation control second spring (76), so that the window frame (60) It does not hinder rotation with respect to the sash frame (40).

As described above, regardless of the direction of rotation of the window frame (60), one of the springs acts in such a direction as to inhibit the rotation, so that the window frame (60) suddenly moves in either direction. Even if it is attempted to rotate in a short time, the rapid rotation cannot be performed due to the action of any one of the two springs, and the spring rotates slowly. According to the sash window sudden rotation prevention device of the second aspect, the following operation is achieved.

The window frame support shaft (71) is rotated to open or close the window frame (60) of the sash window provided with the sash window prevention device according to the second aspect. An attempt is made to rotate the window frame (60) in one direction as an axis. It is assumed that the rotation direction is the same direction as the winding direction of the first rotation control spring (75), that is, the direction opposite to the winding direction of the second rotation control spring (76).

Then, on the stationary first surface (71A) around which the rotation control first spring (75) is wound and the rotation first surface (72A),
The first rotating body (72) is rotated together with the window frame (60) by the rotation control first spring (7).
Rotate in the winding direction of 5). On the other hand, the stationary body including the stationary first surface (71A) remains stationary with respect to the sash frame (40). At this time, the portion of the rotation control first spring (75) wound around the first rotation surface (72A) is rotated by the frictional force generated on the contact surface with the first rotation surface (72A). ), The portion of the rotation control first spring (75) wound on the stationary first surface (71A) is a frictional force generated on the contact surface with the stationary first surface (71A). Try to keep it still. While the rotation of the window frame (60) continues, the rotation control first spring (75), the stationary first surface (71A) and the rotation first surface
(72A) and the frictional force generated between the rotation control first spring (75)
Assume that it works to increase the spring diameter of. Then, the rotation control first spring (75), the stationary first surface (71A) and the rotation first surface (72)
The frictional force generated between the window frame (A) and the window frame (60) does not hinder the rotation of the window frame (60) relative to the sash frame (40).

However, as described above, the rotation control first spring
The rotation of the window frame (60) in the same direction as the winding direction of (75) is always in the opposite direction to the winding direction of the rotation control second spring (76). Then, the friction force generated between the rotation control first spring (75) and the stationary first surface (71A) and the rotation first surface (72A) is the rotation control first spring.
The stationary second surface on which the rotation control second spring (76) is wound because the spring diameter of the spring (75) is working to be expanded.
(74A) and the rotation second surface (73A), the frictional force generated between the rotation control second spring (76) and the stationary second surface (74A) and the rotation second surface (73A) is necessarily rotation control. It works to reduce the spring diameter of the second spring (76). Then, it becomes difficult to rotate the window frame (60), and as a result, the window frame (60) is
0) cannot be rapidly rotated. Therefore, the window frame (60) rotates slowly.

Contrary to the case described above, the window frame (60) of the sash window provided with the sash window rapid rotation preventing device according to claim 2 is moved in the direction of winding of the rotation control second spring (76). Rotate in the same direction. In this case, the window frame (6
While the rotation of (0) continues, the rotation control first spring (75) and the stationary first surface
(71A) and the frictional force generated between the first rotation surface (72A) will act to reduce the spring diameter of the rotation control first spring (75), so that the window frame (60) rotates. As a result, the window frame (60) cannot be rapidly rotated with respect to the sash frame (40).

However, as described above, the rotation control second spring (7
While the rotation of the window frame (60) in the same direction as the winding direction of 6) continues, the stationary second surface (74A) on which the rotation control second spring (76) is wound
And the rotation second surface (73A), the rotation control second spring (7
6) and the frictional force generated between the stationary second surface (74A) and the rotating second surface (73A) acts to expand the diameter of the rotation control second spring (76), so that the window frame (60) It does not hinder rotation with respect to the sash frame (40).

As described above, regardless of the direction of rotation of the window frame (60), either one of the springs acts in such a direction as to inhibit the rotation, so that the window frame (60) suddenly moves in either direction. In such a case, the abrupt rotation cannot be performed due to the action of one of the two springs. The device for preventing rapid rotation of the sash window according to claim 3 has the following operation in addition to the operation of the device for preventing rapid rotation of the sash window according to claim 1 or 2.

That is, in the device for preventing rapid rotation of the sash window according to the third aspect, since the stationary first surface (71A) is provided on the window frame support shaft (71), a separate member from the window frame support shaft (71) is provided. The number of parts is reduced as compared with the case where the stationary first surface (71A) is provided. According to the sash window sudden rotation prevention device of the fourth aspect, the following operation is achieved.

That is, the device for preventing rapid rotation of the sash window according to claim 4 has two vertical shafts in the vertical frame (61) of the window frame (60). Window frame in either direction
Claim 1, Claim 2 or Claim 3 even when (60) is rotated.
The function of the described invention is achieved.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
This will be described in more detail with reference to examples and drawings. here,
In the drawing, FIG. 1 shows an opening in which this embodiment is used,
FIG. 3 is a perspective view showing a sash frame and a window frame. FIG. 2
1 shows a schematic view of the entire casement window provided with the rapid rotation preventing device according to the present invention. FIG. 3 shows a main part of the rapid rotation preventing device. FIG. 4 is a plan view of the rapid rotation preventing device shown in FIG.

FIGS. 5 to 8 show components constituting the rapid rotation preventing device used in this embodiment. FIG. 5 is a diagram showing a window frame support shaft that constitutes the rapid rotation preventing device used in the embodiment. FIG. 6 is a diagram illustrating a first rotating body and a second rotating body that constitute the rapid rotation preventing device used in the embodiment. FIG. 7 is a diagram showing an end member of a window frame support shaft constituting the rapid rotation preventing device used in the embodiment. FIG.
FIG. 4 is a view showing a control rod receiving member constituting the window frame support device used in the embodiment.

9 to 11 show the essential parts of another embodiment of the rapid rotation preventing device. FIG. 12 is a diagram schematically illustrating the window frame support operating device in a state where both window frame support shafts protrude the maximum length from the entry hole of the window frame. FIG.
It is the figure which showed the outline of the window frame spindle operation device in the state where both window frame spindles were slightly retracted from the entrance hole of the window frame. FIG. 14 is a diagram schematically illustrating the window frame support operation device in a state where one window frame support shaft is completely retracted from the entry hole of the window frame.

FIG. 15 is a view showing a window frame spindle control device corresponding to the window frame spindle operating device in a state where both window frame spindles are protruded from the entrance hole of the window frame by the maximum length. FIG.
FIG. 4 is a view showing a window frame support controller corresponding to the window frame support operating device in a state where both window frame support shafts are slightly retracted from the entrance holes of the window frame. FIG. 17 is a diagram showing a window frame spindle control device corresponding to the window frame spindle operating device in a state where one window frame spindle is completely retracted from the entry hole of the window frame.

FIG. 18 is a partial plan view showing the inside-down regulating device used in the embodiment. FIG. 19 is a partial side view illustrating the inside-down regulating device used in the embodiment. First, an example of an opening of a building in which the present embodiment is used will be described with reference to FIG. The opening of the building in which this embodiment is used is formed as a square opening 11 in the wall panel 10, as shown in FIG. Its opening 1
1, the sash frame 40 is attached to the sash frame 40 from the indoor side via the frame 20 around the frame, which is a member for facilitating the attachment of the sash frame 40 to the opening 11.
The window frame 60 is attached so that it can be opened and closed in and out of the building.

The sash window used in this embodiment is a so-called double-ended window and a two-axis window. That is, the vertical rotation axis is the vertical frame 6 of the window frame 60.
1 is provided on both sides, and by selecting and using one of the rotation axes, the window frame 60 can be used regardless of whether the left or right rotation axis is used.
Is used for a sash window that can be opened and closed with respect to the sash frame 40. Hereinafter, the sash window of this embodiment is a two-axis double-door window. It should be noted that the two-axis double-ended window in FIG. 2 is shown as having a plate glass 69 fitted near the center thereof.

Next, the outline of the sash window including the rapid rotation preventing device 70 according to the present invention will be described with reference to FIG. An outline of a device related to the rapid rotation preventing device 70 of the present embodiment will be described. A window frame support shaft 71 that forms a rotation axis of the window frame is provided inside the vertical frame 61 on each of the left and right sides of the window frame 60 of the double-shaft casement window of this embodiment. The rapid rotation preventing device 70 is provided on the window frame support shaft 71 provided above the window frame 60 among the window frame support shafts 71.

The window frame support shafts 71 can freely move up and down in the vertical direction. By operating a handle 94 provided near the center of both the left and right vertical frames 61, the window frame support shafts 71 can be formed in the vertical frames 61 so as to be able to move up and down. It was done. A device that causes the window frame support shaft 71 to move in and out by operating the handle 94 is referred to as a window frame support shaft operating device 90. Furthermore, the upper frame 62 of this double-axis double-turn window
Inside, a window frame support shaft control device 80 is provided such that only one of the window frame support shafts 71 protrudes. The window frame spindle control device 80 rotates the window frame spindle 71 as a rotation axis that functions only one of the window frame spindles 71 of the vertical frames 61 on the left and right sides of the two-axis double-turn window. This is provided to prevent the window frame support shaft 71 from sinking when the window is opened as a center and the rotation axis in the entire window frame 60 disappears. That is, when one of the window frame support shafts 71 is selected as the center of rotation, the window frame support shaft 71 does not sink into the window frame 60.

Next, the gist of the embodiment of the rapid rotation preventing device 70 will be described with reference to FIG. The rapid rotation preventing device 70 shown in FIG. 3 includes a window frame support shaft 71, a first rotary body 72 and a second rotary body 73 loosely mounted adjacent to the window frame support shaft 71 so as to be rotatable. , These window frame spindles 71,
It has a first rotation control spring 75 and a second rotation control spring 76 wound around the first rotating body 72 and the second rotating body 73.

Here, the window frame support shaft 71 is defined as a window frame regardless of the rotation of the window frame 60 even when the window frame 60 rotating about the window frame support shaft 71 rotates. A support shaft 60 is formed so as not to rotate with respect to the sash frame 40 to which the sash frame 40 is attached. That is, the window frame support shaft 71 is provided rotatably with respect to the window frame 60, and the portion of the window frame support shaft 71 protruding from the window frame 60 has a square pillar shape as is clear in FIG. In addition, a square hole-shaped entry hole 41 provided in the sash frame 40 is formed so as not to rotate with respect to the sash frame 40 by restraining the window frame support shaft 71 from rotating.

On the other hand, the first rotating body 72 and the second rotating body 73
Is fixed to the window frame 60 so as to rotate simultaneously with the window frame 60 with the rotation of the window frame 60. Therefore, the window frame support shaft 71 is formed so as not to be rotatable with respect to the sash frame 40, whereas the first rotary body 72 and the second rotary body 73 are rotatable with respect to the sash frame 40. However, it is formed so that the relative position in the window frame 60 does not change at all. Accordingly, although the window frame support shaft 71 does not rotate due to the rotation of the window frame 60 with respect to the sash frame 40, the first rotating body 72 and the second rotating body 73 are formed to rotate with the window frame 60. I have.

Next, the window frame support shaft 71, the first rotating body 72, the second rotating body 73, the first rotation control spring 75, and the second rotation control spring 76 will be described in more detail. In the description, description will be made with reference to FIGS. 4 to 7 as well as FIG. First, the window frame support shaft 71 will be described. The window frame support shaft 71 is formed by processing one round bar. Here, the window frame support shaft 71 is shown in FIGS.
When the window frame 60 provided on the sash frame 40 is rotated, the tip portion is formed into a rectangular column that can enter and retreat in order to cause the tip portion to enter the entry hole 41 of the sash frame 40. An entrance portion 71C, and a window frame support shaft control device 7 having an outer diameter corresponding to the outer diameter of the entrance portion 71C.
And a receiving material loosening portion 71D for rotatably loosening the control rod receiving material 82, which is one of the components.
A stationary first surface 71A having an outer diameter larger than 1D, a rotating body loosening portion 71E continuous with the stationary first surface 71A and having the same outer diameter as the receiving material loosening portion 71D, and a rotating body loosening portion 71E.
And an end member fixing portion 71F for fixing a window frame support shaft end member 74 that is fixed to the window frame support shaft 71 and that is continuous with a lower portion of the frame member. Further, a tip portion of the entrance portion 71C formed in a square pole shape is a columnar tip portion 71J formed in a column shape.

The end member fixing portion 71F of the window frame support shaft 71 is
In order to non-rotatably fix the window frame support shaft end member 74 to the window frame support shaft 71, a chamfered portion 71G is provided on a part of the outer peripheral surface of the end member fixing portion 71F. At the lower end of the window frame support shaft 71, a link support hole 71H for supporting the transmission link 93 of the window frame support shaft operating device 90 is provided. The upper end of the transmission link 93 is supported by the link support hole 71H. Although the transmission link 93 itself rotates with the rotation of the window frame 60, the window frame support shaft 71 does not rotate. At the link support hole 71H, the transmission link 93 and the window frame support shaft 71 are formed so as to be rotatable. That is, although the transmission link 93 and the window frame support shaft 71 are rotatable relative to each other, with respect to the vertical movement, the window frame support shaft 71 also moves simultaneously with the vertical movement to the transmission link 93. It is formed so that it does.

Next, as shown in FIG. 6, a first rotating body 7 rotatably provided with respect to such a window frame support shaft 71.
The second and third rotating bodies 73 will be described. The first rotating body 72 and the second rotating body 73 are used in pairs for one sudden rotation preventing device 70. The first rotary member 7 is positioned on the side of the entrance portion 71C of the window frame support shaft 71.
2 and the one located on the link support hole 71H side are referred to as a second rotating body 73. Since both are formed in the same shape, here, the first rotating body 72 and the second rotating body 73 will be described simultaneously. I do.

The first rotator 72 and the second rotator 73 are formed in the shape of a square rod, and the rotating body loosening portion 71E of the window frame support shaft 71 extends along the square rod-shaped axis. Haze holes 72B and 73B with a slightly larger diameter are formed. In addition, one direction of the axis of the first rotating body 72 and the second rotating body 73 is circular so as to form a rotating surface having the same outer diameter as the stationary first surface 71A of the window frame support shaft 71 described above. Is formed. Therefore, although the first rotating body 72 and the second rotating body 73 are formed in a rod shape as a whole, loosening holes 72B, 73B slightly larger than the outer diameter of the rotating body loosening portion 71E are provided therein. While being drilled,
One side is left as fixing portions 72D and 73D which remain in the shape of a prism.

The portion along the axis in the direction opposite to the fixing portions 72D, 73D is formed in a cylindrical shape as a stationary first surface 72A and a stationary second surface 73A. Also, the fixing portions 72D, 7
In 3D, fixed grooves 72D and 73 for rotating the first rotating body 72 and the second rotating body 73 with the rotation of the window frame 60 are provided.
D is drilled. When the first rotating body 72 and the second rotating body 73 are loosely mounted on the window frame support shaft 71,
From the side of the link support hole 71H of the window frame support shaft 71, the first rotating body 7
2 is inserted with the first rotation surface 72A as the tip, and the second rotating body 73 is inserted with the second rotation surface 73A downward from the link support hole 71H side. At this time, the first rotating body 72 and the second rotating body 73
Fixing grooves 72D, 73D are continuous.

As shown in FIG. 7, the window frame support shaft end member 74 is provided.
The end member fixing portion 71 of the window frame support shaft 71 is formed along the cylindrical axis while its external appearance is formed in a cylindrical shape.
A loose hole 74B is provided for fitting into and fixing to F. In order to fix the window frame support shaft end member 74 to the window frame support shaft 71 in a non-rotatable manner, a part of the cross-sectional shape of the loose mounting hole 74B is adjusted to the chamfered portion 71G of the end member fixing portion 71F. It is shaped like a chord and the rest as an arc.

One side of the axis of the window frame support shaft end member 74 is formed in a circular shape so as to form a rotation surface having the same outer diameter as the rotation second surface 73A of the second rotation body 73 described above. This rotating surface is referred to as a stationary second surface 74A. When the window frame support shaft end member 74 is loosely mounted on the window frame support shaft 71, the window frame support shaft 71 is inserted from the link support hole 71H side of the window frame support shaft 71 with the stationary second surface 74A as the tip. The window frame support shaft end member 74 loosely mounted on the window frame support shaft 71 does not rotate even when the window frame 60 rotates with respect to the sash frame 40.

The first rotation control spring 75 and the second rotation control spring 76 are formed such that the winding directions of both springs are clockwise. Of these, the rotation control first spring 7
5 extends between the stationary first surface 71A of the window frame support shaft 71 and the rotation first surface 72A of the first rotating body 72 loosely mounted on the window frame support shaft 71, Face 72
A is wound around the surface of A. On the other hand, the rotation control second spring 76 is connected to the rotation second surface 7 of the second rotating body 73.
3A and the stationary second surface 74A of the window frame support shaft end member 74 are wound around the surfaces of the rotating second surface 73A and the stationary second surface 74A. That is, both ends of the rotation control first spring 75 and the rotation control second spring 76 are not fixed anywhere.

Next, the operation of the sash window sudden rotation preventing device 70 shown in FIG. 3 will be described. In order to open or close the window frame 60 of the sash window provided with the sash window rapid rotation preventing device 70 shown in FIG. 3 with respect to the sash frame 40, the window frame 60 is rotated in one direction with the window frame support shaft 71 as a rotation axis. Try to rotate. The rotation direction is the same direction as the winding direction of the rotation control first spring 75 and the rotation control second spring 76,
That is, in FIG. 3, it is assumed that the direction is the front side of the drawing.

Then, on the stationary first surface 71A around which the rotation control first spring 75 is wound and the rotation first surface 72A, the first rotating body 72 is wound together with the window frame 60 in the winding direction of the rotation control first spring 75. To rotate. On the other hand, the window frame support shaft 71 is
Since the stationary first surface 71A remains stationary with respect to the sash frame 40, the stationary first surface 71A also remains stationary. At this time, the portion of the rotation control first spring 75 wound around the first rotation surface 72A tries to rotate in the winding direction of the first rotation control spring 75 by the frictional force generated on the contact surface with the first rotation surface 72A. On the other hand, the stationary first surface 71 of the rotation control first spring 75
The portion wound around A attempts to maintain a state of being kept stationary by the frictional force generated on the contact surface with the stationary first surface 71A. Here, while the rotation of the window frame 60 continues, the friction force generated between the rotation control first spring 75 and the stationary first surface 71A and the rotation first surface 72A increases the spring diameter of the rotation control first spring 75. Work like that. Then, the frictional force generated between the rotation control first spring 75 and the stationary first surface 71A and the rotation first surface 72A does not hinder the rotation of the window frame 60 with respect to the sash frame 40.

However, while the rotation of the window frame 60 in the same direction as the winding direction of the rotation control first spring 75 continues as described above,
The stationary second surface 74 around which the rotation control second spring 76 is wound
In A and the rotation second surface 73A, the friction force generated between the rotation control second spring 76 and the stationary second surface 74A and the rotation second surface 73A reduces the spring diameter of the rotation control second spring 76. It works like that. Therefore, the window frame 60 is hardly rotated by the frictional force, and as a result, the window frame 60
Cannot be rapidly rotated with respect to the sash frame 40.

Contrary to the above-described case, the window frame 60 of the sash window provided with the sash window rapid rotation preventing device 70 is moved in the direction in which the rotation control first spring 75 and the rotation control second spring 76 are wound. Rotate in the opposite direction. In this case, while the rotation of the window frame 60 continues, the frictional force generated between the rotation control first spring 75 and the stationary first surface 71A and the rotation first surface 72A becomes the spring diameter of the rotation control first spring 75. Therefore, the window frame 60 becomes difficult to rotate, and as a result, the window frame 60 cannot be rapidly rotated with respect to the sash frame 40.

However, as described above, the rotation control first spring 7
5 while the rotation of the window frame 60 continues in the same direction as the winding direction of the second stationary surface 74A around which the second rotation control spring 76 is wound.
Between the rotation control second spring 7 and the rotation second surface 73A.
6 and the frictional force generated between the stationary second surface 74A and the rotating second surface 73A act so as to expand the spring diameter of the rotation control second spring 76, so that the rotation of the window frame 60 with respect to the sash frame 40 is prevented. Not be.

As described above, regardless of the direction of rotation of the window frame 60, one of the rotation control springs acts in such a direction as to suppress the rotation, so that the rotation control spring suddenly moves in either direction. In such a case, rapid rotation cannot be performed due to the action of one of the two rotation control springs. This will be described in more detail. In the case where the rotation is suddenly suddenly performed, one of the two rotation control springs reduces the rotation speed of the window frame 60 due to the sudden rotation force and stops the rotation. When a large rotation force is continuously applied to the window frame 60, one of the two rotation control springs keeps suppressing the rotation speed. If a small rotational force is applied to the window frame 60, the window frame 60 can be fixed at an arbitrary position.

Next, another embodiment of a device for preventing rapid rotation of a sash window will be described with reference to FIG. The rapid rotation preventing device 7 shown in FIG.
0 is the first rotation control spring 75 and the second rotation control spring 76
Is wound counterclockwise, and the other configuration is the same as the rapid rotation preventing device 70 shown in FIG.

Next, the operation of the sash window sudden rotation preventing device 70 shown in FIG. 9 will be described. Window frame 6 in sash window
0 to open or close the sash frame 40,
The window frame 60 is assumed to be in a direction opposite to the winding direction of the rotation control first spring 75 and the rotation control second spring 76 with the window frame support shaft 71 as a rotation axis, that is, in FIG.

Then, while the rotation of the window frame 60 continues, the rotation control first spring 75, the stationary first surface 71 A and the rotation first surface 72
A acts to reduce the spring diameter of the rotation control first spring 75, and the friction force generated between the rotation control second spring 76 and the stationary second surface 74A and the rotation second surface 73A. Works to increase the spring diameter of the rotation control second spring 76. Therefore, the rotation control second spring 76 and the stationary second surface 74A
And the frictional force generated between the rotating second surface 73A and the window frame 6
Although the rotation of the window frame 60 with respect to the sash frame 40 does not hinder the rotation of the window frame 60 with respect to the sash frame 40, the frictional force generated between the first rotation control spring 75 and the stationary first surface 71A and the first rotation surface 72A does not hinder the rotation of the window frame 60. Therefore, the window frame 60 cannot rotate rapidly with respect to the sash frame 40, but rotates slowly.

Regardless of the direction of rotation of the window frame 60, one of the rotation control springs acts in such a direction as to inhibit the rotation, so that it is attempted to rapidly rotate in either direction. Also, due to the action of one of the two rotation control springs, rapid rotation cannot be performed. Next, another embodiment of the device for preventing rapid rotation of the sash window will be described with reference to FIG.

The rapid rotation preventing device 70 shown in FIG. 10 also includes a window frame support shaft 71, a first rotary body 72 and a second rotary body 73 loosely mounted on the window frame support shaft 71 so as to be rotatable. ,
These window frame support shaft 71, first rotating body 72 and second rotating body 7
3 and a rotation control first spring 75 and a rotation control second spring 76 wound therearound. The main difference in the configuration from the rapid rotation preventing device 70 shown in FIG. 3 is that the first rotating body 72 and the second rotating body 73 are loosely mounted without being adjacent to the window frame support shaft 71. Control first spring 7
5 and the rotation control second spring 76 are different in the winding direction, and the shape of the window frame support shaft end member 74 is different from that shown in FIG. The main differences between the configuration of the rapid rotation preventing device 70 shown in FIG. 10 and the rapid rotation preventing device 70 shown in FIG. 3 will be described in further detail.

The first rotating body 72 is loosely mounted on the window frame support shaft 71 so that the first rotating surface 72A is adjacent to the stationary first surface 71A, and is fixed to the window frame 60. At this time, the stationary first surface 71
A, a first rotation control spring 75 having a clockwise winding direction is wound around the first rotation surface 72A. Although not shown, the window frame support shaft end member 74 has a longer shaft portion including the stationary second surface 74A than that shown in FIG.
As shown in FIG. 10, the window frame support shaft 71 is connected by a key 74C. A rotation control second spring 76 having a counterclockwise winding direction is wound around the stationary second surface 74A of the window frame support shaft end member 74, and the stationary second surface 74A is wound around the stationary second surface 74A. The second rotating body 73 is loosely mounted on the window frame support shaft 71 so that 73A is continuous, and is fixed to the window frame 60.

The thus formed rapid rotation preventing device 70 shown in FIG. 10 has the following operation. In order to open or close the window frame 60 of the sash window provided with the sash window rapid rotation preventing device 70 shown in FIG. 10 with respect to the sash frame 40, the window frame 60 is rotated in one direction with the window frame support shaft 71 as the rotation axis. Try to rotate. It is assumed that the rotation direction is the same direction as the winding direction of the rotation control first spring 75, that is, the direction opposite to the winding direction of the rotation control second spring 76. Then, the first rotating body 72 is formed between the stationary first surface 71A around which the first rotation control spring 75 is wound and the first rotating surface 72A.
Rotates together with the window frame 60 in the winding direction of the rotation control first spring 75. On the other hand, the window frame support shaft end member 74 is connected to the sash frame 4.
It remains stationary with respect to 0. At this time, the portion of the rotation control first spring 75 wound around the first rotation surface 72A tries to rotate in the winding direction of the first rotation control spring 75 by the frictional force generated on the contact surface with the first rotation surface 72A. On the other hand, the stationary first surface 71A of the rotation control first spring 75
The portion wound on the first surface is intended to maintain a state of being kept stationary by the frictional force generated on the contact surface with the stationary first surface 71A. While the rotation of the window frame 60 continues, the frictional force generated between the rotation control first spring 75 and the stationary first surface 71A and the rotation first surface 72A acts to increase the spring diameter of the rotation control first spring 75. . Then, the rotation control first spring 75 and the stationary first surface 7
The frictional force generated between 1A and the first rotating surface 72A does not hinder the rotation of the window frame 60 with respect to the sash frame 40.

However, as described above, the rotation of the window frame 60 in the same direction as the winding direction of the rotation control first spring 75 is always opposite to the winding direction of the rotation control second spring 76. Therefore, between the stationary second surface 74A around which the rotation control second spring 76 is wound and the rotational second surface 73A, the rotation control second spring 76 is interposed between the stationary second surface 74A and the rotational second surface 73A. The generated frictional force always acts to reduce the diameter of the rotation control second spring 76. Then, it becomes difficult to rotate the window frame 60. As a result, the window frame 60 cannot be rapidly rotated with respect to the sash frame 40. Therefore, the window frame 60 rotates slowly.

Now, contrary to the case described above, the window frame 60
Is rotated in the same direction as the winding direction of the rotation control second spring 76, the functions of the rotation control first spring 75 and the rotation control second spring 76 are only reverse to those described above. Therefore, although the description is omitted, even if the rotation direction of the window frame 60 is in any direction, one of the springs acts in a direction that suppresses the rotation, so that it suddenly moves in either direction. In such a case, the abrupt rotation cannot be performed due to the action of one of the two springs.

Next, another embodiment of the device for preventing rapid rotation of the sash window will be described with reference to FIG. The rapid rotation preventing device 70 shown in FIG. 11 is exactly the same as the rapid rotation preventing device 70 shown in FIG. 10 except that the winding directions of the rotation control first spring 75 and the rotation control second spring 76 are reversed. It has a configuration.
That is, the first rotation control spring 75 has a counterclockwise winding direction, and the second rotation control spring 76 has a clockwise winding direction.

The operation of the rapid rotation preventing device 70 shown in FIG. 11 having such a configuration is compared with the operation of the rapid rotation preventing device 70 shown in FIG. Since only the functions of the first spring 75 and the rotation control second spring 76 are different, a detailed description of the operation will be omitted. Next, the window frame support shaft control device 80 will be described in detail.

In the above-described double-shaft casement window, assuming that the window frame support shafts 71 provided on both the left and right vertical frames 61 are simultaneously accommodated in the vertical frame 61, the entire window frame 60 is sashed. It will come off the frame 40. In order to prevent such a situation, the window frame 60 is provided with a window frame support shaft control device 80. However, in describing the window frame support shaft control device 80, the window frame support shaft control device 80 is operated in accordance with the appearance of the window frame support shaft 71 from the window frame 60, and therefore, first, FIGS. The window frame spindle operating device 90 shown in FIG.

As shown in FIG. 2, the window frame spindle operating device 90
Are operated by handles 94 provided one by one on the two vertical frames 61 of the window frame 60. FIG.
As shown in FIG. 2, a pinion gear 92 is fixed to the rotation shaft of the handle 94, and rack gears 91 are provided on both left and right sides of the pinion gear 92 so as to mesh with each other. Each of the rack gears 91 is fixed to a transmission link 93 connected to the window frame support shaft 71.

The relationship between the rack gear 91 and the pinion gear 92 will be described with reference to FIGS.
Here, the state shown in FIG.
This shows a state in which the maximum length is projected from 0. That is, in the state of the window frame support shaft operating device 90 shown in FIG. 12, the window frame support shaft 71 is in a state of entering the innermost of the entry hole 41 of the sash frame 40. The state of the window frame support shaft 71 and the like at this time is shown in FIG.

From the state shown in FIG. 12, the window is then rotated obliquely inside the window frame 60 as shown in FIG. Then, with the rotation of the handle 94, the pinion gear 92 also rotates, and at the same time, the pinion gear 9
The left and right rack gears 91 move. Due to such movement of the rack gears 91, the transmission links 93 fixed to the respective rack gears 91 move in the direction in which the transmission links 93 are pulled inward of the window frame 60. With such a movement,
The window frame support shaft 71 connected to the transmission link 93 is
1 slightly moves out of the entrance hole 41. The state of the window frame support shaft 71 and the like at this time is shown in FIG.
Is shown in

Further, from the state shown in FIG.
As shown in FIG. 14, one handle 94
Is further rotated inside the window frame 60, the pinion gear 92 rotates with this rotation, and at the same time, the pinion gear 9 rotates.
The left and right rack gears 91 further move.
With the movement of the rack gear 91, the transmission link 9
As the transmission link 93 moves, the window frame support shaft 71 is completely pulled out from the entrance hole 41 in the upper frame of the sash frame 40, and Is retracted into the window frame 60 leaving a slight length from the entry hole 41 in the lower frame of the sash frame 40 so that the sash frame 40 can be operated. The state of the window frame support shaft 71 and the like at this time is shown in FIG.

As described above, the rotation of the handle 94 as the window frame support shaft operating device 90 causes the window frame support shaft 71 to move the window frame 60
The window frame support shaft 71 can be made to protrude into the entry hole 41 of the sash frame 40 by being retracted inside or by operating the handle 94 in the opposite direction to that described above. Next, a specific configuration of the window frame support shaft control device 80 will be described. The window frame support device 80 is the same as the window frame 60 described above.
A control rod receiving member 82 loosely mounted on each of the window frame support shafts 71 provided on both vertical frames 61, and a control rod 81 bridged between the two control rod receiving members 82. I have.

Here, as shown in FIG. 8, the control rod receiving member 82 is rotatably loosened on the receiving member loosening portion 71D of the window frame support shaft 71. The inside of the prism is formed by forming a receiving material loosening hole 82C having an inner diameter slightly larger than the outer diameter of the receiving material loosening portion 71D. Also, one side surface of the control rod receiving member 82
An inner locking portion 82B that rises upward at a relatively steep angle from below, and an outer locking portion 8 that rises upward from the upper end of the inner locking portion 82B at a slightly gentle slope.
2A are formed in a continuous shape, and the angle formed between the inner locking portion 82B and the outer locking portion 82A is less than 180 degrees. More specifically, the inner-stage engaging portion 82B and the outer-stage engaging portion 82A are
2 is formed so as to expose its surface on one side,
The control rod 8 is attached to the inner locking portion 82B and the outer locking portion 82A.
The first locking tip 81A can be locked.

On the other hand, the control rod 81 is provided with two locking portions 82A and 82B provided on the control rod receiving member 82 when the window frame support shafts 71 on both sides of the window frame 60 project to the maximum extent in the vertical direction. It is formed to have a slightly shorter length than the gap, and when one window frame support shaft 71 is retracted most inside the window frame 60,
The outer-stage locking portion 82A of the control rod receiving member 82 loosely mounted on the window frame support shaft 71 retreated and the inner-stage locking of the control rod receiving member 82 loosely mounted on the other window frame supporting shaft 71. It is formed to have a length substantially equal to the length between the portion 82B. Also, the locking tip 81A, which is both sides of the control rod 81,
Inner locking portion 82B and outer locking portion 8 of control rod receiving member 82
It is cut obliquely at an angle of less than 180 degrees so that it can be locked to both 2A. Therefore, the overall shape of the control rod 81 is a hexagon.

Next, the specific operation of the window frame spindle control device 80 will be described together with the operation of the window frame spindle operating device 90 described above. The movement of the window frame spindle operating device 90 has already been described in the order of FIGS. 12, 13 and 14, and the window frame spindle control device 80 corresponding to each window frame spindle operating device 90 is shown. 15, 16, and 17 are drawings. Therefore, first, a description will be given with reference to FIG. 15 corresponding to FIG.

FIG. 15 shows a state in which both of the window frame support shafts 71 provided on both sides of the window frame 60 project maximum from the window frame 60 in the vertical direction.
At this time, the handles 94 provided on both sides of the center of the vertical frame 61 of the window frame 60 are maintained in a vertical state as shown in FIG. That is, when the handle 94 is in the state shown in FIG. 12, the rack gear 91 fixed to the transmission link 93 is in a state of protruding to the maximum extent on both sides in the vertical direction of the window frame 60. The window frame support shaft 71 thus protruded from the window frame 60 in the up-down direction, and has entered the entrance hole 41 of the sash frame 40 as much as possible. In this case, the window frame 60 is the sash frame 40
Is closed to At this time, both of the locking line ends 81A of the control rod 81 are located at positions facing the inner locking portion 82B of the control rod receiving member 82. However, the length of the control rod 81 is determined by the two locking portions 81A provided on the control rod receiving member 82 when the two sets of window frame support shafts 71 protrude from the window frame 60 to the maximum.
The length of the control rod 81 and the inner-stage locking portion 82B of the control rod receiving material 82
Is a little away. Therefore, it is not prevented that one window frame support shaft 71 is retracted into the window frame 60. Therefore,
The handle 94 that is not bound by the window frame support controller 80 can perform the operation.

Next, such a handle is rotated about 45 degrees inside the window frame 60 as shown in FIG. Then, as shown in FIG. 13, the rotation of the pinion gear 92 causes the rack gear 91 to move in the direction in which the rack gear 91 is pulled inward, and the movement of the rack gear 91 also causes the transmission link 93 to move. Become. With the movement of the transmission link 93, the window frame support shaft 71 moves in a direction slightly drawn into the window frame 60 from the vertical direction. However, in this state, of the window frame support shaft 71,
The window frame support shaft 71 located below does not completely escape from the entry hole 41 of the sash frame 40, and the tip of the window frame support shaft 71 is located slightly inside the entry hole 41. Also, at this time, the window frame support shaft 71 located above retreats from the entry hole 41 of the sash frame 40, but the columnar tip portion 71J is provided between the entry hole 41 of the sash frame 40 and the window frame 60. As a result, it is positioned inside a regulating hole 65C of an inward regulating link 65 described later, which is pivotally supported by the sash frame 40. The inward-restriction control device 64 including the inward-restriction link 65 will be described in more detail later.

As described above, the transmission link 93 is pulled in the direction of moving the window frame support shaft 71 toward the inside of the window frame 60, and accordingly, both upper window frame support shafts 71 are moved inward of the window frame 60. When the window frame 60 slightly moves, the control rod receiving members 82 provided on the upper window frame shafts 71 also move toward the inside of the window frame 60 with the movement of the window frame shaft 71. At this time, the locking tip portion 81A of the control rod 81 is locked to both control rod receiving members 82 so as to hang on both locking portions of the inner locking portion 82B and the outer locking portion 82A of the control rod receiving member 82. It will be in the state that it is. Therefore, when both the handles 94 provided on the left and right sides of the window frame 60 are rotated about 45 degrees,
The other movement of the transmission link 93 due to the rotation of the handle 94 causes the outer-stage locking portions 8 provided on the upper window frame support shafts 71 to move.
The control rod 81 is locked between 2A and the inner-stage locking portion 82B, so that the vertical movement of the window frame support shaft 71 cannot be performed. Therefore, even if only one of the handles 94 is used, the rotation of the window frame 60 cannot be performed any more.
The situation of deviating from zero can be prevented. put it here,
This means that the window frame spindle control device 80 functions for ensuring safety.

Further, as shown in FIG. 14, one handle 94 is rotated to a position of substantially 90 degrees. When the right handle 94 is rotated, as shown in FIG. 17, the right window frame support shaft 71 retreats as far as possible toward the inside of the window frame 60. At this time, the entrance 71 of the window frame support shaft 71
C is depressed from the entry hole 41 of the sash frame 40 and also from the restriction hole 65C of the restriction link 65 to be completely free. In this case, the window frame 60 uses the window frame support shaft 71 that has not receded into the window frame 60 as a rotation axis, and
It is rotatable with respect to.

When one of the window frame support shafts 71 is moved in the maximum direction toward the inside of the window frame 60, the moved window frame support shaft 71 is moved with the movement of the window frame support shaft 71. The control rod receiving member 82 loosely mounted on the member 71 moves toward the inside of the window frame 60 at the maximum. At this time, the locking tip 81A is locked to the inner locking portion 82B of the window frame support shaft 71 on which one side of the control rod 81 does not move, and the locking tip 81A on the other side is connected to the window frame 60. The control rod receiving member 82 that has moved inward is locked by the outer locking portion 82A of the control rod receiving member 82, and is held at that position. Therefore, in such a state, even if the operation of the handle 91 is performed so as to move the window frame support shaft 71 that has not been moved toward the inside of the window frame 60, the operation of the handle 94 in the window frame 60 The movement of the control rod receiving member 82 becomes impossible due to the locking between the inner locking portion 82B of the control rod receiving member 82 and the locking tip portion 81A of the control rod 81. That is, when one window frame support shaft 71 is completely moved in the direction toward the inside of the window frame 60, the other window frame support shaft 71 cannot be moved.

In the state shown in FIG. 17, when the window frame 60 is rotated around the left window frame support shaft 71, the left window frame support shaft 71 is no longer provided. Since it is impossible to move in the direction of the window frame 60, it is possible to prevent an accident in which both the left and right window frame support shafts 71 are detached from the sash frame 40 and the entire window frame 60 falls from the sash frame 60. is there. Also in this case, the window frame support device 8
0 functions to ensure safety.

According to the above-described embodiment, the device for restricting one side of the rotation axis of the window frame 60, that is, the device including the window frame support shaft control device 80 and the window frame support shaft 71, is effective for the double-shaft double-sided window. Thus, there can be provided a device for restricting the rotation axis of the window frame 60 so that the rotation axis functioning as described above is not stored in the window frame. Therefore, only one of the window frame support shafts 71 of the vertical frames 61 on the left and right sides of the two-axis double-turn window is used as a rotation axis that effectively functions, that is, the window frame support shaft 71 is used.
For example, when the window is opened around the center of rotation, the window frame support shaft 71 can be prevented from sinking, and the rotation axis in the entire window frame 60 can be prevented from disappearing.

Hereinafter, variations of the above-described one-side regulating device for the rotating shaft of the window frame 60 will be described. The device for restricting one side of the rotating shaft of the window frame 60 of the above embodiment is employed for a so-called double-opening sash window, and the device for preventing the sash window from rotating rapidly 7.
0 is provided or the window frame 60 can be depressed.

However, assuming that only the one regulating device for the rotating shaft of the window frame 60 is taken out, the window frame supporting shaft 71 does not need to be unable to rotate with respect to the sash frame 40. Window frame support shaft 71
The control rod receiving member 82 need only be fixed to the window frame support shaft 71 without being “loosely mounted”, as long as it can rotate with respect to the sash frame 40. In the above embodiment,
Although the description has been made assuming that the window frame support shaft 71 is provided on the vertical frame 61 of the window frame 60, the present invention functions even if the rotation axis is horizontal. May be provided.

On the other hand, the window frame support shaft 71 is connected to the vertical frame 61 of the window frame 60.
In the above embodiment, the control rod 81 is described as being built in the upper frame 62, but the control rod 81 may be provided in the lower frame. Further, the shapes of the locking tip portion 81A of the control rod 81 and the control rod receiving member 82 in the above embodiment are not limited to the above embodiment. Two sets of window frame support shafts 71 are used to maximize the window frame 60
When one of the window frame support shafts 71 projects from the
0 of the control rod 81 so as to be retracted into
While forming the shape of 1A and the control rod receiving material 82,
When one of the two window frame support shafts 71 is retracted to the maximum inside the window frame 60, the locking tip 81 </ b> A of the control rod 81 contacts the control rod receiving member 82. If the other window frame support shaft 71 is formed so as not to recede in the window frame 60, for example, the cross section may have a corrugated and irregular shape.

Next, with reference to FIGS. 18 and 19, the above-described inward restricting device 64 will be described. The inward tilting control device 64 includes window frame support shafts 71 provided on both sides of the window frame 60.
When the handle 94 provided on both sides of the window frame 60 is rotated by 45 degrees, the entire window frame 60 is housed. By slightly inwardly inwardly and holding the inwardly inclined state, the upper part of the window frame 60 and the sash frame 4
This is performed in order to achieve air permeability between zero.

In such a case, if the window frame 60 is opened indefinitely, there is a risk that the window frame 60 may fall down to the indoor side. Appropriate outside ventilation cannot be performed. Therefore, the window frame 60 according to the embodiment has a predetermined length.
The upper part of the window frame 60 can be opened so that the upper part of the window frame 60 falls indoors around the window frame support shaft 71 protruding downward and the entry hole 41 for supporting the same. That is,
When the two window frame support shafts 71 at the upper portion of the window frame 60 are retracted from the entry hole 41 into which they have entered, the two window frame support shafts 71 at the lower portion of the window frame 60 It is formed so as to be able to maintain a state in which it does not retreat completely from the entry hole 41 into which it has entered, and at this time, the two window frame support shafts 7 below the window frame 60 are provided.
1 and the entrance hole 41 into which they have entered are formed such that the window frame 60 can be tilted indoors around the window frame support shaft 71 and the entrance hole 41 as a center of rotation.

Next, the structure of the inside-down regulating device 64 will be described. The inward-restriction device 64 includes an inward-restriction link 65 pivotally supported on the lower surface of the sash frame 40 corresponding to the upper frame 62 of the window frame 60, and a link for limiting the rotation angle of the inward-restriction link 65. And two stoppers 66 at the upper part of the window frame.
Two sets are provided corresponding to 1.

The inward restricting link 65 is formed in a strip shape, and has a link support shaft 65A for supporting the sash frame 60 on one side, and a link support shaft 65A on the other side. A restricting hole 65C, which is a long hole, is formed. The inward restricting link 65 is formed such that the restricting hole 65C faces in the left-right direction of the sash frame 40 and the link support shaft 65A is positioned at the center of the sash frame 40. It is supported by. In a state in which the window frame 60 is closed, the window frame support shafts 71 provided on both sides of the window frame 60 are connected to the window 60 of the window 65 in the state where the window frame 60 is closed.
Are arranged so as to be located at the center portion side.

The link support shaft 65A of the inward restricting link 65
Between the restriction hole 65C in the direction, there is provided a notched portion 65D for a stopper which cuts out the indoor direction. In addition, the inward restricting link 65 is linked to the link support 65.
A link stopper 66 is provided at an upper portion of the sash frame 40 so that the stopper notched portion 65D comes into contact with the sash frame 40 when it rotates toward the indoor side around the center A. Therefore, when the window frame 60 is closed with respect to the sash frame 40, the inward-restriction link 65 is located on the same line as the upper frame 62 of the window frame 60, and the inside of the indoor frame around the link support shaft 65 A is shifted. When rotated inward, the stopper notch 65D of the inward-restriction link 65 is formed so as to be rotatable to a position where it comes into contact with a link stopper 66 provided on the upper portion of the sash frame 40.

Next, the operation of the inside-down regulating device 64 will be described. First, since the inward restricting device 64 is provided at the position of the window frame support shaft 71 at the time of closing the window frame 60, the window frame 60 is attached to the sash frame 40 because the restricting hole 65 </ b> C provided in a long hole shape is bored. In the operation of moving the window frame support shaft 71 into the entry hole 41 provided in the sash frame 40 or closing the window frame support shaft 71 toward the inside of the window frame 60 in the closed state, It is not in the way.

On the other hand, as shown in FIG. 13, when the left and right handles 94 are rotated approximately 45 degrees and the window frame support shaft 71 is retracted to the middle as shown in FIG. The window frame support shaft 71 at the lower part is in a state where the tip end thereof is slightly inserted into the entrance hole 41 at the lower part of the sash frame 40.
However, the window frame support shaft 71 at the upper part moves inward of the sash frame 40 and retreats from the entry hole 41 of the sash frame 40, and the column-shaped tip portion 71J of the window frame support shaft 71 falls down. It will be located in the restriction hole 65C of the link 65. In this state, when the window frame 60 is tilted in the indoor direction, the window frame 60 itself is rotated around an entry portion between the lower window frame support shaft 71 and the lower entry hole 41 of the sash frame 40 as a rotation center. 60 can rotate to the indoor side.

However, even at the upper part of the window frame 60, the columnar tip 71 J of the window frame support shaft 71 falls down and the restriction link 65
Is located in the restriction hole 65C of the sash frame 40.
Can be defeated only to the point where it hits the upper link support shaft 65A. That is, the window frame 60 is tilted outward until the two-dot chain line shown in FIGS.
As a result, ventilation inside and outside the room can be performed, so that the ventilation efficiency is significantly improved.

In order to close the window frame 60 which has been folded down against the sash frame 40, the upper portion of the window frame 60 is pushed toward the outside, so that the outer periphery of the window frame 60 coincides with the inner periphery of the sash frame 40. I do. This is because the notched portion 65D for the stopper is
5A and the restriction hole 65C, the moving distance of the upper window frame support shaft 71 is limited by the link support shaft 65A and the restriction hole 65C.
Is shorter than the distance to the farthest part,
Does not rotate to a position perpendicular to the upper frame 62 of the window frame 60.

Thereafter, the two window frame support shafts 7 above the window frame 60
By closing the sash frame 40 with the window frame 60, the sash frame 40 is completely closed. According to the above-described embodiment, it is possible to provide a device that can always perform a small amount of ventilation by the inward-restricting link 65 and its peripheral members in a so-called biaxially-rotating window. This has the effect.

Next, the effect of the sash window inward regulating device 64 will be described. According to the sash window inward regulation device 64 of the above-described embodiment, the window frame 60 can be depressed with respect to the sash frame 40 in the rotating window and the ventilation can be performed little by little by maintaining the state. There is an effect that a device that can be provided can be provided.

Since the stopper notch 65D is located between the link support shaft 65A and the restriction hole 65C, the moving distance of the window frame support shaft 71 is limited by the link support shaft 65A and the restriction hole 65C.
C is shorter than the distance to the farthest part. Then, when closing down the window frame 60 which has fallen inward with respect to the sash frame 40, the upper portion of the window frame 60 is merely pushed toward the outdoor side, and the sash frame 4 is closed.
The inner periphery of the window frame 60 can be made to coincide with the inner periphery of the window frame 60, and if the two window frame support shafts 71 on the upper portion of the window frame 60 enter the corresponding entry holes 41, the closing can be completed. it can. That is, there is also an effect that the window frame 60 which has been depressed can be easily closed.

Hereinafter, a variation of the above-described sash window inward regulating device 64 will be described. In the above embodiment, the description has been made assuming that the link stopper 66 is provided. However, even if the link stopper 66 is not provided, the sash window inward regulating device 64 can be established.

Further, in the above-described embodiment, the inward restricting link 65 and the link stopper 66 are connected to the window frame 60.
Although provided so as to correspond to both the upper window frame support shafts 71, it is sufficient if at least one side is provided. FIG. 18 or FIG.
9, the outer periphery of the window frame 60 on the sash frame 40 side includes:
A sash window packing 50 is provided, and further around the sash frame 40, a frame 20 around the frame is shown. Further, FIG. 19 shows a case where the shutter box 45 is provided above the window frame 60 as an example.

Next, the effects of the above embodiment will be described. According to the sash window rapid rotation preventing device 70 of the above embodiment, the window frame 60 can be slowly opened and closed when the window frame 60 is to be opened and closed, and when the window frame 60 is suddenly opened or closed. Has an effect that it is possible to provide the sash window rapid rotation preventing device 70 in which the rapid opening or closing cannot be performed.

In particular, since the members to be rotation-suppressed are independent according to the direction of rotation, there is an effect that the rotation of the window frame 60 can be smoothly suppressed. Hereinafter, variations of the above-described embodiment will be described. The device 70 for preventing rapid rotation of the sash window of the above-described embodiment is employed in a so-called double-shaft double-opening sash window. And that.

However, the device 70 for preventing rapid rotation of the sash window according to the present invention can be applied to a rotating window other than a so-called two-axis double-sided window or a window having a horizontal rotating shaft. That is, the present invention can be applied to a sash window having a single rotation axis or a horizontal rotation axis. In addition, the rotation shaft is formed as a pair of window frame support shafts 71, but the first rotation body 72 and the second rotation body 7
3. Even if the stationary first surface 71A, the stationary second surface 74A, the rotation first surface 72A, the rotation second surface 73A, the rotation control first spring 75, and the rotation control second spring 76 are provided, the rapid rotation of the sash window is prevented. The device is established.

Further, the first rotating body 72 and the second rotating body 73
Are independent as two members, and the window frame support shaft end member 74 is a separate member from the window frame support shaft 71. However, the rotating body is one member, or the window frame support shaft end member 74 is the window frame support shaft. Even if it is not provided as a separate member from 71, the rapid rotation preventing device for the sash window is established.

[0097]

According to the device for preventing rapid rotation of the sash window according to the first, second, third and fourth aspects, it is possible to open and close the window frame slowly when trying to open and close the window frame.
In the case where the window is suddenly opened or closed, there is an effect that a device for preventing rapid rotation of the sash window that cannot be opened or closed suddenly can be provided.

According to the device for preventing rapid rotation of the sash window according to the fourth aspect, in addition to the above-described effects, even when the window frame is opened and closed, even if the window frame is a two-axis double-opening window, it can be opened and closed slowly. It is possible to provide a device for preventing rapid rotation of a sash window such that a rapid opening or closing cannot be performed when the window is suddenly opened or closed. .

[Brief description of the drawings]

FIG. 1 is a perspective view showing an opening, a sash frame, and a window frame in which an embodiment is used.

FIG. 2 is a schematic view of the entire casement window provided with the rapid rotation preventing device according to the present invention.

FIG. 3 shows a main part of the rapid rotation preventing device.

FIG. 4 is a plan view of the rapid rotation preventing device shown in FIG. 3;

FIG. 5 is a view showing a window frame support shaft constituting the rapid rotation preventing device used in the embodiment.

FIG. 6 is a diagram showing a first rotating body and a second rotating body that constitute the rapid rotation preventing device used in the embodiment.

FIG. 7 is a view showing a window frame support shaft end member constituting the rapid rotation preventing device used in the embodiment.

FIG. 8 is a diagram showing a control rod receiving member constituting the window frame support shaft control device used in the embodiment.

FIG. 9 shows a main part of another embodiment of the rapid rotation preventing device.

FIG. 10 shows a main part of another embodiment of the rapid rotation preventing device.

FIG. 11 shows a main part of another embodiment of the rapid rotation preventing device.

FIG. 12 schematically shows the window frame support operation device in a state where both window frame support shafts protrude a maximum length from an entrance hole of the window frame.

FIG. 13 schematically shows the window frame support operation device in a state where both window frame support shafts are slightly retracted from the entrance holes of the window frame.

FIG. 14 schematically shows the window frame support operation device in a state where one window frame support shaft is completely retracted from an entry hole of the window frame.

FIG. 15 is a view showing a window frame support device corresponding to the window frame support device in a state where both window frame support shafts protrude a maximum length from an entry hole of the window frame.

FIG. 16 is a view showing a window frame spindle control device corresponding to the window frame spindle operating device in a state where both window frame spindles are slightly retracted from the entrance holes of the window frame.

FIG. 17 is a view showing a window frame support controller corresponding to the window frame support operating device in a state in which one window frame support shaft is completely retracted from the entry hole of the window frame.

FIG. 18 is a partial plan view showing an inward-restriction regulating device used in the embodiment.

FIG. 19 is a partial side view showing the inside-down regulating device used in the embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Wall panel 11 Opening 20 Frame around frame 40 Sash frame 41 Entry hole 45 Shutter box 50 Sash window packing 60 Window frame 61 Vertical frame 62 Upper frame 64 Inner drop-in control device 65 Inner drop-in control link 65A Link support shaft 65C Control hole 65D Notched portion for stopper 66 Link stopper 69 Sheet glass 70 Rapid rotation prevention device 71 Window frame spindle 71A Stationary first surface 71C Entry portion 71D Receiver loosening portion 71E Rotor loosening portion 71F End member fixing portion 71G Chamfering portion 71H Link support hole 71J Cylindrical tip 72 First rotating body 72A First rotating surface 72B Loose hole 72C Fixed portion 72D Fixed groove 73 Second rotating body 73A Second rotating surface 73B Loose hole 73C Fixed portion 73D Fixed groove 74 Window Frame support shaft end member 74A Stationary second surface 74B Loose hole 74C Key 75 rotation Control first spring 76 Rotation control second spring 80 Window frame spindle control device 81 Control rod 81A Locking tip 82 Control rod receiving material 82A Outer locking unit 82B Inner locking unit 82C Receiving material loose hole 90 Window Frame spindle operating device 91 Rack gear 92 Pinion gear 93 Transmission link 94 Handle

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Takashi Kimotsuki 51 Iwai-cho, Hodogaya-ku, Yokohama-shi, Kanagawa Prefecture Inside Kato-Hatsujo Co., Ltd. (58) Field surveyed (Int.Cl. ⁷ , DB name) E05F 1/12

Claims (4)

(57) [Claims] 1. A sash window having a frame-shaped sash frame, a window frame located inside the sash frame, and a rotation shaft rotatably supporting the window frame so that the window frame can be opened and closed with respect to the sash frame. Is formed on a window frame support shaft that does not rotate with respect to the sash frame,
A first rotating body and a second rotating body fixed to the window frame so as to be rotatable with respect to the window frame supporting shaft and to be rotated in accordance with the rotation of the window frame; The shaft has two stationary bodies that do not rotate with respect to the sash frame, one stationary body has a stationary first surface, the other stationary body has a stationary second surface, and the first rotating body has a stationary second surface. A rotating first surface that is continuous facing the first surface, a second rotating body is provided with a rotating second surface that is continuous facing the stationary second surface, and both ends of the rotating shaft are stationary stationary surfaces. One surface and the stationary second surface, or the rotating first surface and the rotating second surface are arranged so as to be positioned, and the rotation control first spring is wound around the stationary first surface and the rotating first surface, and the stationary Formed by winding a rotation control second spring having the same winding direction as the rotation control first spring over the two surfaces and the rotation second surface. Sharp anti-rotation device of the sash window, characterized. 2. A sash window having a frame-shaped sash frame, a window frame located inside the sash frame, and a rotation shaft rotatably supporting the window frame so that the window frame can be opened and closed with respect to the sash frame. Is formed with a window frame support shaft that does not rotate with respect to the sash frame, and is loosely mounted so as to be rotatable with respect to the window frame support shaft,
The window frame includes a first rotating body and a second rotating body fixed to the window frame so as to rotate in accordance with the rotation of the window frame, and the window frame supporting shaft includes two stationary bodies that do not rotate with respect to the sash frame. One stationary body has a stationary first surface, the other stationary body has a stationary second surface, and the first rotating body has a continuous rotating first surface facing the stationary first surface, a second rotating surface. The rotating body is provided with a continuous rotating second surface facing the stationary second surface, and a stationary first surface and a rotating second surface, or a rotating first surface and a stationary second surface are provided on both ends of the rotating shaft. The rotation control first spring is wound around the stationary first surface and the rotation first surface, and the rotation control first spring is wound around the stationary second surface and the rotation second surface. A device for preventing rapid rotation of a sash window, wherein the device is formed by winding a rotation control second spring having an opposite winding direction. 3. The stationary first surface is formed to be provided on a window frame support shaft, and the stationary second surface is provided separately from the window frame support shaft and fixed to the window frame support shaft. The rapid rotation preventing device for a sash window according to claim 1 or 2, wherein the device is formed so as to be provided on a support shaft end member. 4. The sash window is a two-axis double-sided window having two parallel rotation axes, which are pivotally supported so that the window frame can be opened and closed with respect to the sash frame, in a vertical frame of the window frame. 4. The sash window rapid rotation preventing device according to claim 1, wherein the shaft is formed by two sets of window frame supporting shafts that do not rotate with respect to the sash frame.