JP3375680B2 - Rapid 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 rapid rotation preventing device, and more particularly, to a rotating plate used in a building such as a window frame in a sash window or a door panel in a door, in which the rotating plate is not rapidly rotated. The present invention relates to a sudden rotation prevention device.

[0002]

2. Description of the Related Art Conventionally, a window or a door is formed by providing an opening in a wall panel of a building and attaching a partition plate to the opening. When the partition plate is provided with a rotary shaft or hinge and is rotatable around the rotary shaft or hinge, the partition plate serves as a rotary plate to form a rotary window or a rotary door for opening and closing the opening. It becomes a member.

Hereinafter, the "rotating plate" refers to a rotating window that opens and closes an opening such as a wall panel, more specifically, a window frame including a plate glass, and a member such as a door panel forming a revolving door. . Such rotating plates have been widely used in buildings. By the way, in the case of the rotating plate, the opening direction is one direction when viewed in the closed state as a so-called single-opening window or door, but recently, the opening direction when viewed in the closed state It has come to be widely used as a window and a door of a so-called double-opening structure that is bidirectional.

[0004]

However, in the rotating plate, due to abrupt rotation caused by an artificial cause or a natural phenomenon such as wind, the rotating plate is opened to the open limit point or abruptly closed to the closed point. May be performed. Due to the sudden rotation, a loud noise is generated, and an impact force is applied to the rotating shaft and the hinge that also support the mass of the rotating plate,
The rotating shaft, hinges, sash frame, etc. were damaged.

In order to prevent such a rapid rotation of the rotary plate, a one-way open rotary door equipped with a so-called damper device has been provided. However, the provision of the damper device is large-scale, heavy in appearance, bad in appearance, and intimidating. Further, even if a damper device can be provided on the revolving door, in the case of the revolving window, there is often no space for mounting the damper device, so that the revolving window is hardly used in practice.

Further, it is difficult to adopt a damper device for a so-called double-opened window or door because the stroke of the damper device is insufficient. The problem to be solved by the present invention is to provide an abrupt rotation preventing device which can prevent abrupt rotation of a rotating plate and is neat in appearance, and can also be used for double-opening windows and doors.

[0007]

The present invention is a means for solving the above-mentioned problems and provides the invention described in claims 1 to 4. That is, the abrupt rotation preventing device according to claim 1 is a partition plate used for an opening in a building and is a rotating plate that is opened and closed by rotating,
The first rotor (4) that rotates with the rotation of the rotating plate
1) and the second rotating body (42), the first non-rotating body (43) and the second non-rotating body (44) which is a non-rotating body that does not rotate regardless of the presence or absence of rotation of the rotating plate. The first rotating body (41) and the first non-rotating body (43), the first control spring (45), the second rotating body (42)
A second control spring (46) is wound around the respective surfaces of the second non-rotating body (44) and is wound around the first non-rotating body (44).
(41), the first non-rotating body (43), the first control spring (45), the second rotating body (42), the second non-rotating body (44) and the second control spring (46) The first rotating body (41), the first non-rotating body (43), the second rotating body (42), and the second non-rotating body (44) are provided on the same central axis as the rotating shaft and have a rotating plate. When rotating in the rotation direction of, the first rotating body (41) viewed from the first non-rotating body (43) side
When the rotation direction of the first control spring (45) matches the winding direction of the first control spring (45), the second rotating body (4
The rotation direction of (2) and the winding direction of the second control spring (46) do not match, and the rotation direction of the first rotating body (41) viewed from the first non-rotating body (43) side is the first control spring ( If the winding direction of (45) does not match, the rotation direction of the second rotating body (42) viewed from the second non-rotating body (44) side and the winding direction of the second control spring (46) match. In the case where the rotary plate is rapidly rotated in one rotation direction, the first control spring (in the rotation direction of the first rotating body (41) as viewed from the first non-rotating body (43) side is disposed. When the winding direction of (45) matches, or when the winding direction of the second control spring (46) matches the rotation direction of the second rotating body (42) viewed from the second non-rotating body (44) side, the The frictional force generated between the control spring and the surface of the non-rotating body and the rotating body acts in the direction of reducing the spring diameter, and the above frictional force does not reduce the spring diameter unless the rotation of the rotating plate is rapid. So Characterized in that it is configured.

The sudden rotation preventing device according to claim 2 includes all the constituent features of the invention according to claim 1, and the rotating plate is a window frame (31) located inside the sash frame (20) in the sash window. ). The sudden rotation preventing device according to claim 3 includes all the constituent features of the invention according to claim 1, and the rotating plate is a door panel (61) in the revolving door (60).

Further, the sudden rotation preventing device according to claim 4 is the invention according to claim 1 or 2, or claim 1
And all of the constituent features of the invention according to claim 3, wherein the rotating plate is a so-called double-opening structure that can rotate in any direction with the opening of the building as a reference.

[0010]

According to the abrupt rotation preventing device of the first aspect, the following effects are exhibited. It is assumed that the rotating plate makes a sudden rotation in one direction with respect to the opening of the building. Then, the two rotating bodies (41, 42) rotate with the rotation, but neither of the non-rotating bodies (43, 44) rotates.

Here, the rotating direction of the rotating plate is such that the rotating direction of the first rotating body (41) viewed from the side of the first non-rotating body (43) does not coincide with the winding direction of the first control spring (45). Suppose In that case, the first control spring (45) does not bite into the surfaces of the first rotating body (41) and the first non-rotating body (43), and the braking force acts on the rotating force of the rotating body. Nor. However, at that time, since the rotation direction of the second rotating body (42) viewed from the second non-rotating body (44) side and the winding direction of the second control spring (46) are the same, <br /> The friction force generated on the surface of the second control spring (46) and the second rotating body (42) and the second non-rotating body (44) acts in the direction of reducing the diameter of the second control spring (46), and as a result, The second control spring (46) bites into the surfaces of the second rotating body (42) and the second non-rotating body (44), and controls the rotational force of the second rotating body (42) that receives dynamic friction. Power will work. Therefore, the second rotating body
The rotation speed of (42) is suppressed, and the rotation speed of the rotating plate that rotates together with the second rotating body (42) is also suppressed.

On the other hand, the rotating plate rapidly rotates with respect to the opening of the building, and the rotating direction of the rotating plate is the rotation of the first rotating body (41) as viewed from the first non-rotating body (43) side. It is assumed that the direction is the same as the winding direction of the first control spring (45). Then, the frictional force generated between the first control spring (45) and the surfaces of the first rotating body (41) and the first non-rotating body (43) acts in the direction of reducing the diameter of the first control spring (45), As a result, the first control spring (45) bites into the surfaces of the first rotating body (41) and the first non-rotating body (43), and with respect to the rotational force of the first rotating body (41) that receives dynamic friction. As a result, braking force is applied. Therefore, the first rotating body
The rotation speed of (41) is suppressed, and the rotation speed of the rotating plate that rotates together with the first rotating body (41) is also suppressed. However, in the second rotating body (42) and the second non-rotating body (44),
The second control spring (46) does not bite into those surfaces, and the braking force does not act on the rotational force of the rotating body.

When the rotation of the rotary plate is not rapid, the frictional force generated between the control spring and the surfaces of the rotating body and the non-rotating body does not reduce the diameter of the control spring.
The braking force does not act on the rotating force of the rotating body. According to the abrupt rotation preventing device of the second aspect, the above-described action is caused in the window frame (31) located inside the sash frame (20) in the sash window.

According to the abrupt rotation preventing device of the third aspect, the action of the abrupt rotation preventing device of the first aspect is generated in the door panel (61) of the revolving door (60). According to the sudden rotation prevention device of claim 4,
Since the rotary plate has a so-called double-opening structure, the action of the abrupt rotation preventing device according to the above-mentioned claim 1 occurs even when the rotary plate is rotated for opening and closing in any direction. The rotating plate is the window frame (31) located inside the sash frame (20) in the sash window, or the revolving door (6
It does not matter whether it is the door panel (61) in 0).

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail below with reference to embodiments and drawings. Here, FIG. 1 is a conceptual diagram showing a first embodiment of the present invention, and FIG. 2 is a conceptual diagram showing a variation of the first embodiment. FIG. 3 is a conceptual diagram showing a second embodiment of the present invention, and FIG. 4 is a conceptual diagram showing a variation of the second embodiment. 5 is a conceptual diagram showing a third embodiment of the present invention, FIG. 6 is a conceptual diagram showing a variation of the third embodiment, and FIG. 7 is a variation of the third embodiment. It is a conceptual diagram.

First, the configuration of the embodiment shown in FIG. 1 will be described. The abrupt rotation preventing device shown in FIG. 1 corresponds to the embodiment of the invention described in claim 2, and the wall panel 10 is provided.
It was adopted for the sash window fitted in the opening of the. That is, the abrupt rotation preventing device is a sash frame 20 having a rectangular frame shape fitted inside the square opening of the wall panel 10.
And a rotating window 30 that is rotatably supported inside the sash frame 20 and is used as a sash window.

The "rotating plate" specified in the claims is
The rotary window 30 corresponds to the rotary window 30, and is a rotary window having a so-called double-opening structure including a square frame-shaped window frame 31 and a plate glass 32 fitted in the window frame 31. Therefore,
The sudden rotation preventing device here corresponds to the invention of claim 4. The rotation axis of this rotation window 30 is
The axial direction is vertical and is provided on the left side of the rotating window 30 in FIG. The rotating shaft is formed of two sets of rotating shafts, one set provided on the left side of the upper frame of the rotating window 30 and one set provided on the left side of the lower frame. The two sets of rotation shafts constitute a rapid rotation prevention device 40 and are housed in a mechanism housing space 33 provided on the left side of the upper frame and the left side of the lower frame of the rotating window 30.

Next, the rotating shaft provided on the upper frame of the rotating window 30 will be described. The rotating shaft is a cylindrical first rotating shaft 41 that rotates with the rotation of the rotating window 30, a first non-rotating body 43 that is provided on the same central axis as the first rotating shaft 41, and The first control spring 45 is wound around the surface of the rotating shaft 41 and the first non-rotating body 43.

Since the first rotary shaft 41 is fixed to the window frame 31 of the rotary window 30 in the mechanism housing space 33, it rotates with respect to the sash frame 20 as the rotary window 30 rotates. In the first non-rotating body 43, the first rotating shaft 41 side is formed in a cylindrical shape, the tip opposite to the first rotating shaft 41 protrudes toward the sash frame 20, and the protruding tip portion is formed in a prismatic shape. Then, it is embedded and fixed in the sash frame 20. Therefore, even if the rotating window 30 rotates, the first non-rotating body 43 does not rotate.

Next, the rotating shaft provided on the lower frame of the rotating window 30 will be described. The rotation axis is also the rotation window 30.
Columnar second rotary shaft 42 that rotates with the rotation of the second rotary shaft 42, the second non-rotating body 44 provided on the same central axis as the second rotary shaft 42, the second rotary shaft 42 and the second non-rotating body. The second control spring 46 is wound around the surface of the body 44 to be wound.

The second rotary shaft 42 is the same as the first rotary shaft 41, the second non-rotating body 44 is the same as the first non-rotating body 43, and the winding direction of the second control spring 46 is the same as that of the first control spring 45. Same as direction. However, the first rotary shaft 41 and the second rotary shaft 42 are located closer to the center of the rotary shaft when viewed from the entire rotary shaft, and the first non-rotating body 43 and the second non-rotating body are located outside them. Since the body 44 is located, the rotation direction of the first rotation shaft 41 viewed from the first non-rotation body 43 and the rotation direction of the second rotation shaft 42 viewed from the second non-rotation body 44 with respect to the rotation direction of the rotation window 30. Will be different. Therefore, when the rotating direction of the rotating window 30 is the same as the winding direction of the first control spring 45 when the rotating direction of the first rotating body 41 viewed from the first non-rotating body 43 side is the same as the second rotating direction. The rotation direction of the second rotating body 42 viewed from the body 44 side does not match the winding direction of the second control spring 46, and the rotation direction of the first rotating body 41 viewed from the first non-rotating body 43 side is the first direction. When the winding direction of the control spring 45 does not match, the rotation direction of the second rotating body 42 viewed from the second non-rotating body 44 side and the winding direction of the second control spring 46 match.
Here, in the winding state in which the above-described first and second control springs 45 and 46 are wound around the rotating bodies 41 and 42 and the non-rotating bodies 43 and 44, the rotating window 30 rapidly rotates in one rotation direction. In this case, when the winding direction of the first control spring 45 matches the rotation direction of the first rotating body 41 viewed from the first non-rotating body 43 side, or the second rotation viewed from the second non-rotating body 44 side. When the winding direction of the second control spring 46 coincides with the rotating direction of the body 42, the frictional force generated between the control spring and the surfaces of the non-rotating body and the rotating body acts in the direction of reducing the spring diameter, and the rotating window 30 If the rotation is not abrupt, the above frictional force does not reduce the spring diameter.

Next, the operation of the above embodiment will be described. Sash frame 20 fixed to the opening of wall panel 10
On the other hand, it is assumed that the rotating window 30 rapidly rotates in one direction. Then, the two rotating bodies 41,
Although 42 rotates, neither of the non-rotating bodies 43 and 44 rotates. Here, it is assumed that the rotation direction of the rotation window 30 is a direction in which the rotation direction of the first rotation shaft 41 viewed from the first non-rotating body 43 side does not match the winding direction of the first control spring 45.
In that case, the first control spring 45 does not bite into the surfaces of the first rotating shaft 41 and the first non-rotating body 43, and the rotating window
The braking force does not act on the rotational force of 30 .

However, at that time, since the rotation direction of the second rotation shaft 42 as viewed from the second non-rotating body 44 and the winding direction of the second control spring 46 coincide with each other , the second control spring 46 and the second control spring 46 The frictional force generated between the rotary shaft 42 and the surface of the second non-rotating body 44 acts in the direction of reducing the diameter of the second control spring 46, and as a result, the surface of the second rotary shaft 42 and the second non-rotating body 44 is contacted with the first control spring. The two control springs 46 bite in, and the braking force acts on the rotational force of the second rotary shaft 42 that receives dynamic friction. Therefore, the rotation speed of the second rotation shaft 42 is suppressed,
The rotation speed of the rotating window 30 that rotates together with the second rotating shaft 42 is also suppressed.

On the other hand, the rotating window 30 is the opening of the wall panel 10.
Min for a fixed sash window 20 performs a rapid rotation, the rotation direction of the rotating window 30, the rotational direction of the first rotating shaft 41 as viewed from the first non-rotating member 43 side first control spring 45
It is assumed that the direction is the same as the winding direction of. Then, the frictional force generated between the first control spring 45 and the surfaces of the first rotating shaft 41 and the first non-rotating body 43 works in a direction to reduce the diameter of the first controlling spring 45, and as a result, the first rotating shaft 41 and The first control spring 45 bites into the surface of the first non-rotating body 43, and the braking force acts on the rotational force of the first rotating shaft 41 that receives dynamic friction. Thus, the rotational speed of the first rotary shaft 41 is suppressed, times that rotates together with the first rotation axis 41
The rotation speed of the window 30 is also suppressed. But,
In the second rotating shaft 42 and the second non-rotating member 44, without the second control spring 46 bites on their surface, times
The braking force does not act on the rotational force of the window 30 .

When the rotation of the rotating window 30 is not rapid, the frictional force generated between the control springs 45 and 46 and the surfaces of the rotating shafts 41 and 42 and the non-rotating bodies 43 and 44 is the control springs 45 and 46. Since the diameter of 46 is not reduced, the braking force does not act on the rotating force of the rotating window 30. Next, the effect of the above embodiment will be described.

According to the abrupt rotation preventing device 40 of the above embodiment, it is possible to prevent the abrupt rotation of the double-opening rotating window 30 and to provide the abrupt rotation preventing device 40 which is neat in appearance. There is. Next, variations of the above embodiment will be described. In the above embodiment, the following variations can be provided.

First, the axis of rotation of the rotary window 30 has been described as vertical, but it may be horizontal. For example, the abrupt rotation preventing device of the above-described embodiment may be adopted for the rotating window of the rotating shaft that penetrates the upper frame horizontally. Also,
Although the rotating window 30 has been described as being double-opened, it may be single-opened. If it is provided for the single-sided rotating window 30, the invention according to claim 1 or 2 is provided.

Although the first rotary shaft 41 and the second rotary shaft 42 have been described as having a cylindrical shape, they may have a cylindrical shape. Similarly, although the first non-rotating body 43 and the second non-rotating body 44 are cylindrical on the rotating body side, they may be cylindrical. Further, the first non-rotating body 43 and the second non-rotating body 4
As long as 4 is fixed to the sash frame 20, it is not necessary to have a square prism portion.

As a variation of the second embodiment shown in FIG. 1, the embodiment shown in FIG. 2 is provided. In the embodiment shown in FIG. 2, the winding directions of the first control spring 45 and the second control spring 46 in the sudden rotation prevention device 40 shown in FIG. The winding directions of the second control springs 46 are opposite to each other, and other configurations are the same.

The operation is such that one of the upper and lower sudden rotation preventing devices that exerts a braking action on the rotation direction of the sash frame 20 is only upside down from that shown in FIG. It does not differ from the action shown in 1. Next, the configuration of the second embodiment shown in FIG. 3 will be described. The rapid rotation preventing device shown in FIG. 3 corresponds to the embodiment of the invention described in claim 3 and is adopted in the door unit fitted in the opening of the wall panel 10. That is, it is adopted in a door unit composed of a square frame-shaped door frame 50 fitted inside a square opening of the wall panel 10 and a revolving door 60 rotatably supported inside the door frame 50. Has been done.

The "rotating plate" specified in the claims is
This corresponds to the door panel 61, and the door panel 61 is fitted into the door frame 50 having a rectangular frame shape. Therefore, the rapid rotation prevention device here corresponds to the embodiment of the invention described in claim 4. The axis of rotation of the door panel 61 is vertical, and is provided on the left side of the door panel 61 in FIG. The rotation axis of the rotation prevention device 40 is provided on the left side of the upper portion of the door panel 61.
And a pair of rotary shafts called a rotary support shaft 62 provided on the left side of the lower part. Rapid rotation prevention device 40
Is stored in a mechanism storage space 63 provided on the upper left side of the door panel 61, and the rotary support shaft 62 is stored in a support shaft storage space 51 provided on the left side of the lower frame of the door frame 50.

Next, the sudden rotation preventing device 40 provided on the upper portion of the door panel 61 will be described. The abrupt rotation preventing device 40 includes a substantially cylindrical fixed support shaft 43A that does not rotate with respect to the rotation of the door panel 61, a cylindrical first rotation ring 41A and a first rotation ring 41A that are loosely installed at substantially the center of the fixed support shaft 43A. Two rotation rings 42A, a first control spring 45 that continuously winds the outer surfaces of the upper end side of the fixed support shaft 43A and the first rotation ring 41A, the lower end side of the fixed support shaft 43A and the second rotation ring 42A. And a second control spring 46 that continuously winds the outer surface thereof. Here, the degree of winding of the first and second control springs 45 and 46 is in the direction in which the spring diameter is contracted by the frictional force generated when the door panel 61 is rapidly rotated, as in the first embodiment described above. It may be appropriately set by taking into consideration the conditions of each part so that the spring diameter does not contract due to the frictional force as long as it works and rotates slowly.

The fixed support shaft 43A has a tip portion on the door frame 50 side protruding toward the door frame 50 side, and the protruding tip portion is formed into a prismatic shape so as to be embedded and fixed in the door frame 50. Therefore, the fixed support shaft 43A does not rotate even if the door panel 61 rotates. In addition, cylindrical fixed portions are provided at two locations near the center of the fixed support shaft 43A.

The first rotary ring 41A and the second rotary ring 42A are loosely fitted in conformity with the cylindrically-defective portions provided adjacent to the center of the fixed support shaft 43A. Since it is fixed to the door panel 61, it rotates with respect to the door frame 50 as the door panel 61 rotates. As is apparent from the above-mentioned configuration, the two members of the first non-rotating body 43 and the second non-rotating body 44, which are “non-rotating bodies” in the claims of the first embodiment, are used in this embodiment. Then, one member called the fixed support shaft 43A is used instead. However, the upper end side of the fixed support shaft 43A is the first non-rotating body 4
It is obvious that the lower end side of the fixed support shaft 43A corresponds to the second non-rotating body 44, which is the portion corresponding to No. When the sudden rotation preventing device 40 is collectively provided, the first non-rotating body and the second non-rotating body are connected to the fixed support shaft 4
It can be said that it is integrally configured as 3A.

The first control spring 45 and the second control spring 46 have the same winding direction. However, since the first rotary ring 41A and the second rotary ring 42A are located on the same axis and the fixed support shaft 43A serving as the first non-rotating body and the second non-rotating body is located outside them, Similarly to the embodiment described above, the rotation direction of the first rotation ring 41A viewed from the upper end side of the fixed support shaft 43A with respect to the rotation direction of the door panel 61 and the second rotation ring 42A viewed from the lower end side of the fixed support shaft 43A. The rotation direction of will be different. Therefore,
When the rotation direction of the door panel 61 is the same as the winding direction of the first control spring 45 when the rotation direction of the first rotation ring 41A when viewed from the upper end side of the fixed support shaft 43A is the same as the winding direction of the first control spring 45, the lower end of the fixed support shaft 43A. The rotation direction of the second rotation ring 42A and the winding direction of the second control spring 46 when viewed from the side of the section do not match, and the rotation direction of the first rotation ring 41A when viewed from the upper end side of the fixed support shaft 43A is the first direction. When the winding direction of the control spring 45 does not match, the rotating direction of the second rotating ring 42A viewed from the lower end side of the fixed support shaft 43A and the winding direction of the second control spring 46 match.

Next, the rotary support shaft 62 provided in the lower portion of the door panel 61 will be described. This rotation spindle 62
One end of the door panel 6 is formed into a square column shape
It is fixed to the door panel 61 by being embedded in 1. The other end, which is opposite to the end of the quadrangular prism, is formed in a cylindrical shape and protrudes from the door panel 61 toward the door frame 50. Then, the projecting portion is housed in the spindle housing space 51, which is a cylindrical recess provided in the door frame 50. Since one end of the rotation support shaft 62 is fixed to the door panel 61, the rotation support shaft 62 rotates with respect to the door frame 50 as the door panel 61 rotates. Therefore, the door panel 61 including the rotary support shaft 62 is considered to be the rotary door 60.

Next, the operation of the second embodiment will be described. The door panel 61 rapidly rotates in one direction with respect to the door frame 50 fixed to the opening portion of the wall panel 10. Then, along with the rotation, the first rotation ring 41A
And the second rotation ring 42A rotates, but the fixed support shaft 43
A does not rotate. Here, the rotational direction of the door panel 61, the rotational direction of the first rotating ring 41A as viewed from the upper end of the fixed support shaft 43A is coincident with the winding direction of the first control spring 45
It is assumed that the direction is not . In that case, the first control spring 45 does not bite into the surfaces of the upper ends of the first rotating ring 41A and the fixed support shaft 43A, and the braking force does not act on the rotating force of the rotating body.

However, at that time, the rotation direction of the second rotary ring 42A and the winding direction of the second control spring 46 viewed from the lower end side of the fixed support shaft 43A match the second control spring 46 and the second control spring 46. The frictional force generated on the surfaces of the lower ends of the two-rotation ring 42A and the fixed support shaft 43A acts in the direction of reducing the diameter of the second control spring 46, and as a result, the lower ends of the second rotation ring 42A and the lower end of the fixed support shaft 43A. The second control spring 46 bites into the surface, and the braking force acts on the rotational force of the second rotary ring 42A that receives dynamic friction. Therefore, the rotation speed of the second rotation ring 42A is suppressed, and the rotation speed of the door panel 61 that rotates together with the second rotation ring 42A is also suppressed.

On the other hand, the door panel 61 makes an abrupt rotation with respect to the opening of the building, and the direction of rotation of the rotary plate is the first rotary ring 41A viewed from the upper end side of the fixed support shaft 43A.
Whose rotation direction matches the winding direction of the first control spring 45
Suppose Then, the frictional force generated between the first control spring 45 and the surfaces of the first rotation ring 41A and the upper end portion of the fixed support shaft 43A acts in the direction of reducing the diameter of the first control spring 45, and as a result, the first rotation ring 41A. And fixed support shaft 43
The first control spring 45 bites into the surface of the upper end portion of A, and the braking force acts on the rotational force of the first rotating ring 41A that receives dynamic friction. Therefore, the rotation speed of the first rotating ring 41A is suppressed, and the first rotating ring 4A
The rotation speed of the door panel 61 that rotates with 1A is also suppressed. However, at the lower ends of the second rotary ring 42A and the fixed support shaft 43A, the second control spring 46 does not bite into their surfaces, and the braking force does not act on the rotational force of the door panel 61. .

When the door panel 61 does not rotate rapidly, the control springs 45 and 46 and the rotary ring 41 are rotated.
Since the frictional force generated on the surfaces of A, 42A and the fixed support shaft 43A does not reduce the diameter of the control springs 45, 46, the braking force does not act on the rotational force of the door panel 61. Next, the effect of the second embodiment will be described.

The sudden rotation preventing device 40 of the second embodiment described above.
According to this, there is an effect that the sudden rotation of the door panel 61, that is, the revolving door 60 can be prevented, and it is possible to provide the sudden rotation preventing device 40 which is neat in appearance. Subsequently, variations of the second embodiment will be described. In the above embodiment, the following variations can be provided.

First, the rotary shaft of the revolving door 60 has been described with its axial direction being vertical, but it may be horizontal. Further, whether the revolving door 60 is a double-opening door or a single-opening door is not particularly described, but if the revolving door 60 is provided for the single-opening revolving door 60, the invention according to claim 1 or 2 is provided. It has been done. On the other hand, if it is provided for the double door 60, the invention according to claim 4 is provided.

Further, although the door frame 50 is provided in the second embodiment, the role of the door frame 50 is the wall panel 1.
It can be set to 0. The embodiment shown in FIG. 4 is provided as a variation of the second embodiment shown in FIG. In the embodiment shown in FIG. 4, the winding directions of the first control spring 45 and the second control spring 46 in the rapid rotation prevention device 40 shown in FIG. The winding directions of the second control springs 46 are opposite to each other, and other configurations are the same.

Next, the structure of the third embodiment shown in FIG. 5 will be described. The rapid rotation preventing device shown in FIG. 5 corresponds to the embodiment of the invention described in claim 3, and the wall panel 1
It is adopted in a door unit including a square frame-shaped door frame 50 fitted in the inside of a square opening of 0, and a revolving door 60 positioned inside the door frame 50 and rotatably supported.

The "rotating plate" specified in the claims is
This corresponds to the door panel 61, and the door panel 61 is fitted into the door frame 50 having a rectangular frame shape. Therefore, the rapid rotation prevention device here corresponds to the embodiment of the invention described in claim 4. The main differences from the second embodiment described above are that a sudden rotation prevention device is built in the door frame 50 side and that the rotation support shaft 62 is fixed to the door frame 50. This will be described in more detail.

The axis of rotation of the door panel 61 is vertical, and it is provided on the left side of the door panel 61 in FIG. The rotation shaft is formed of a two-member set of rotation shafts including a sudden rotation prevention device 40 provided on the left side of the upper frame portion of the door frame 50 and a rotation support shaft 62 provided on the lower left side of the door panel 61. Rapid rotation prevention device 4
0 is stored in a mechanism storage space 52 provided on the left side of the upper frame of the door frame 50.

Next, the sudden rotation preventing device 40 provided on the door frame 50 will be described. The abrupt rotation preventing device 40 includes a substantially cylindrical rotating shaft 41B that rotates with respect to the rotation of the door panel 61 , and a cylindrical first non-rotating ring 43 that is loosened at the end of the rotating shaft 41B opposite to the door panel 61.
B and the second non-rotating ring 44B of a cylindrical shape loosely mounted near the center of the rotating shaft 41B, the rotating shaft 41B and the first non -rotating ring.
Formed of a first control spring 45 that continuously winds the outer surface of the ring 43B and a second control spring 46 that continuously winds the outer surfaces of the rotating shaft 41B and the second non-rotating ring 44B. ing.

The first control spring 45 includes the first non-rotating ring 4
The outer surface of 3B is tightly wound, and the outer surface of the rotating shaft 41B is weakly wound. The second control spring 46 is also tightly wound on the outer surface of the second non-rotating ring 44B and weakly wound on the outer surface of the rotating shaft 41B. Rotating shaft 41
In B, the tip end portion on the door panel 61 side is projected toward the door panel 61 side, and the projecting tip end portion is formed into a prismatic shape so as to be embedded and fixed in the door panel 61. Therefore, when the door panel 61 rotates, the rotation shaft 41B also rotates with respect to the door frame 50. In addition, cylindrical portions are provided at two positions near the end on the side opposite to the door panel 61 of the rotary shaft 41B and near the center.

The first non-rotating ring 43B and the second non-rotating ring 44B are loosely fitted so as to fit into a cylindrically-shaped portion provided on the rotating shaft 41B. Since it is fixed to the door frame 50, it does not rotate even if the door panel 61 rotates. As is clear from the above, the rotating shaft 41
In B, the portion other than the first non-rotating ring 43B around which the first control spring 45 is wound, that is, the central portion of the rotating shaft 41B corresponds to the first rotating body in the above-described embodiment, The portion other than the second non-rotating ring 44B around which the control spring 46 is wound, that is, the lower end portion of the rotating shaft 41B corresponds to the second rotating body. Contrary to the above-described second embodiment, the two members of the first non-rotating body 43 and the second non-rotating body 44, which are "non-rotating bodies", are replaced by one member of the fixed support shaft 43A, In this embodiment, by disposing the sudden rotation preventing device 40, the first rotating body and the second rotating body are connected to each other by the rotating shaft 4
It can be said that it is configured integrally with 1B.

One of the first control spring 45 and the second control spring 46 is formed in the right winding direction and the other in the left winding direction. That is, the first embodiment shown in FIGS. 1 and 2,
Unlike the second embodiment shown in FIGS. 3 and 4, the winding direction of the first control spring 45 and the winding direction of the second control spring 46 are not the same. That is, the portion corresponding to the first rotating body of the rotating shaft 41B viewed from the first non-rotating ring 43B and the portion corresponding to the second rotating body of the rotating shaft 41B viewed from the second non-rotating ring 44B are the same. Therefore, in order to prevent abrupt rotation regardless of the direction of rotation of the door panel 61, the winding direction of the first control spring 45 and the winding direction of the second control spring 46 are Because it must be different.

Next, the rotary support shaft 62 provided in the lower portion of the door panel 61 will be described. This rotation spindle 62
One end of each is formed into a quadrangular prism shape, and that portion is embedded in the door frame 50 so as to be fixed to the door frame 50. The other end on the side opposite to the end of the quadrangular prism is formed in a cylindrical shape and protrudes from the door frame 50 toward the door panel 61. And
The protruding portion is housed in a spindle housing space 64, which is a cylindrical recess provided in the door panel 61. Rotating spindle 62
Has one end fixed to the door frame 50, and therefore does not rotate with respect to the door frame 50 even if the door panel 61 rotates. However, since the rotary support shaft 62 is indispensable for fixing the door panel 61 to the door frame 50 and rotating the door frame 50, the door panel 61 including the rotary support shaft 62 is used for the rotary door 6.
It is assumed that it is 0.

Next, the operation of the third embodiment will be described. The revolving door 60 rapidly rotates in one direction with respect to the door frame 50 fixed to the opening portion of the wall panel 10. Then, the rotation shaft 41B serving as the first rotation body and the second rotation body rotates with respect to the door frame 50 in accordance with the rotation, but the first non-rotating ring 43B and the second non-rotating ring 44B.
B does not rotate with respect to the door frame 50.

Here, of the first control spring 45 or the second control spring 46, the winding direction is the rotation direction of the revolving door 60.
It is assumed that the second non-rotating ring 44B is in agreement . Then, at this time, the frictional force generated between the second control spring 46 and the surfaces of the second non-rotating ring 44B and the rotating shaft 41B acts in the direction of reducing the diameter of the second control spring 46.
The second control spring 46 tightens the surfaces of the second non-rotating ring 44B and the rotating shaft 41B, and the braking force acts on the rotational force of the second non-rotating ring 44B that is subjected to dynamic friction. Therefore, the rotation speed of the rotating shaft 41 is suppressed, and the revolving door 60 rotating together with the rotating shaft 41.
The rotation speed of will also be suppressed.

However, the first control spring 45 does not tighten the surfaces of the first non-rotating ring 43B and the rotating shaft 41B, and the braking force does not act on the rotating force of the first non-rotating ring 43B. When the rotating direction of the rotating window is opposite to the above case, the first control spring 45 tightens the surfaces of the first non-rotating ring 43B and the rotating shaft 41B against the rotating force of the first non-rotating ring 43B. The braking force generated by the first control spring 45 works to suppress the rotation speed of the revolving door 60.

When the rotation of the revolving door 60 is not rapid, the control springs 45 and 46 and the non-rotating ring 43 are rotated.
Since the frictional force generated between B and 42A and the surface of the rotary shaft 41B does not reduce the diameter of the control springs 45 and 46,
The braking force does not act on the rotating force of the revolving door 60. Next, the effect of the third embodiment will be described.

The sudden rotation prevention device 40 of the third embodiment described above.
According to this, there is an effect that the rapid rotation of the revolving door 60 can be prevented, and the rapid rotation preventing device 40 that is neat in appearance can be provided. Next, variations of the third embodiment will be described. The following variations can be provided in the third embodiment.

First, although the axis of rotation of the revolving door 60 has been described as being vertical, the axis of rotation may be horizontal. Further, whether the revolving door 60 is a double-opening door or a single-opening door is not particularly described, but if the revolving door 60 is provided for the single-opening revolving door 60, the invention according to claim 1 or 2 is provided. It has been done. On the other hand, if it is provided for the double door 60, the invention according to claim 4 is provided.

Further, although the door frame 50 is provided in the third embodiment, the role of the door frame 50 is to function as the wall panel 1.
It can be set to 0. The embodiment shown in FIG. 6 is provided as a variation of the third embodiment shown in FIG. In the embodiment shown in FIG. 6, the winding directions of the first control spring 45 and the second control spring 46 in the sudden rotation preventing device 40 shown in FIG. The winding directions of the second control springs 46 are opposite to each other, and other configurations are the same.

Subsequently, as a variation of the third embodiment shown in FIG. 5 which is different from that shown in FIG. 6, the embodiment shown in FIG. 7 is provided. This Figure 7
In the embodiment shown in FIG. 3, the non-rotating ring 43B and the second non-rotating ring 44B are fitted to each other so as to be provided with an absent portion, which is formed on the side opposite to the door panel 51 of the rotary shaft 41B and the door panel 61.
It is provided at two locations on the side.

As is clear from the above, the rotary shaft 4
In 1B, the portion other than the first non-rotating ring 43B around which the first control spring 45 is wound, that is, the central portion of the rotating shaft 41B corresponds to the first rotating body, and the second control spring 46 is wound around. Other than the second non-rotating ring 44B, that is, the rotating shaft 4
The central portion of 1B and the portion near the second non-rotating ring 44B corresponds to the second rotating body.

The first control spring 45 and the second control spring 46 are formed in the same winding direction. That is,
This is the same as the first embodiment shown in FIGS. 1 and 2 and the second embodiment shown in FIGS. 3 and 4. That is, the portion corresponding to the first rotating body of the rotating shaft 41B viewed from the first non-rotating ring 43B and the rotating shaft 4 viewed from the second non-rotating ring 44B.
Since the portion of 1B corresponding to the second rotating body is in the opposite direction, in order to prevent the rapid rotation of the door panel 61 in any direction, the first control spring This is because the winding direction of 45 and the winding direction of the second control spring 46 must be the same.

[0062]

According to the abrupt rotation prevention device of the first aspect of the present invention, it is possible to prevent an abrupt rotation of the rotary plate and to provide an abrupt rotation prevention device that is neat in appearance. According to the abrupt rotation preventing device of the second aspect, there is an effect that the abrupt rotation of the window frame in the sash window can be prevented, and the abrupt rotation preventing device that is neat in appearance can be provided.

According to the sudden rotation preventing device of the third aspect, the sudden rotation of the door panel in the door can be prevented,
There is an effect that it is possible to provide an abrupt rotation preventing device that is neat in appearance. According to the abrupt rotation preventive device of claim 4, it is possible to prevent an abrupt rotation of the rotary plate, which is neat in appearance, and further to provide an abrupt rotation preventive device which can be used for double-opening windows and doors. It has the effect that

[Brief description of drawings]

FIG. 1 is a conceptual diagram showing an embodiment of the present invention.

FIG. 2 is a conceptual diagram showing a variation of the first embodiment.

FIG. 3 is a conceptual diagram showing a second embodiment of the present invention.

FIG. 4 is a conceptual diagram showing a variation of the second embodiment.

FIG. 5 is a conceptual diagram showing a third embodiment of the present invention.

FIG. 6 is a conceptual diagram showing a variation of the third embodiment.

FIG. 7 is a conceptual diagram showing a variation of the third embodiment.

[Explanation of symbols]

10 ... Wall panel, 20 ... Sash frame, 30 ... Rotating window, 31
... window frame, 32 ... plate glass, 33 ... mechanism storage space, 40 ...
Abrupt rotation preventing device, 41 ... First rotating shaft, 41A ... First rotating ring, 41B ... Rotating shaft, 42 ... Second rotating shaft, 42A
... second rotary ring, 43 ... first non-rotating body, 43A ... fixed support shaft, 43B ... first non-rotating ring, 44 ... second non-rotating body, 44B ... second non-rotating ring, 45 ... first control spring ,
46 ... Second control spring, 50 ... Door frame, 51 ... Spindle housing space, 52 ... Mechanism housing space, 60 ... Revolving door, 61 ... Door panel, 62 ... Rotating spindle, 63 ... Mechanism housing space, 64 ...
Spindle storage space.

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E05F 3/16-3/20 E05F 5/00-5/02 E05D 7/086 E05D 11/08

Claims (4)

(57) [Claims] 1. A partition plate used for an opening in a building, which is a partition plate that opens and closes by being rotated, comprising a first rotary body and a second rotary body which are rotary bodies that rotate with the rotation of the rotary plate. , A first non-rotating body and a second non-rotating body that are non-rotating bodies that do not rotate regardless of whether or not the rotary plate rotates, and a first control spring for the first rotating body and the first non-rotating body. The second rotating body and the second non-rotating body are each wound with a second control spring wound around their respective surfaces, and the first rotating body, the first non-rotating body, the first control spring, the second The rotating body, the second non-rotating body, and the second control spring are provided on the same central axis as the rotating shaft of the rotating plate, and the first rotating body, the first non-rotating body, the second rotating body, and the second non-rotating body. When the rotating plate rotates in one rotation direction,
When the rotation direction of the first rotating body seen from the first non-rotating body side matches the winding direction of the first control spring, the rotation direction of the second rotating body seen from the second non-rotating body side and the second If the winding direction of the control spring does not match and the rotation direction of the first rotating body viewed from the first non-rotating body side does not match the winding direction of the first control spring, The rotation direction of the two rotating bodies and the winding direction of the second control spring are arranged in the same positional relationship, and when the rotating plate rapidly rotates in one rotation direction,
When the winding direction of the first control spring coincides with the rotation direction of the first rotating body viewed from the first non-rotating body side, or the rotation direction of the second control spring in the rotating direction of the second rotating body viewed from the second non-rotating body side. When the winding directions are the same, the frictional force generated between the control spring and the surface of the non-rotating body and the rotating body acts in the direction to reduce the spring diameter, and when the rotation of the rotating plate is not rapid, the above frictional force is applied. Is configured so as not to reduce the spring diameter, and the rapid rotation preventing device is characterized in that 2. The sudden rotation preventing device according to claim 1, wherein the rotating plate is a window frame located inside the sash frame in the sash window. 3. The rapid rotation preventing device according to claim 1, wherein the rotating plate is a door panel of a revolving door. 4. The abrupt structure according to claim 1, wherein the rotating plate has a so-called double-opening structure that can rotate in any direction with respect to the opening of the building. Anti-rotation device.