JP3289481B2 - Brake for rotating window - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating window braking device.

[0002]

2. Description of the Related Art A vertical or horizontal rotating window, an inwardly or outwardly rotating window, a one-sided or double-sided rotating window or a protruding rotating window has recently become larger and heavier with the rise of buildings. This enlarged window causes various problems when it is opened and closed. For example, when a strong wind pressure is applied by a gust when opening and closing a window, the wind pressure acts on the window to increase the opening / closing speed in the opening direction or the closing direction depending on the wind direction. Increases the opening speed and impacts the stop at the fully open position, and when acting in the closing direction, the window impacts against the window frame, thereby only causing damage to the window glass. Instead, glass shards can cause unexpected accidents to passers-by under buildings. In particular, windows located on higher floors receive considerable wind pressure, which is particularly problematic. Also, since the sealing seal provided at the periphery of the window frame acts as a resistance when the window is opened, a relatively large force is required when the window is opened. However, when the window is opened, the window suddenly disappears. As a result, there is a possibility that a person who attempts to open the window with a large force may fall with excessive force. Therefore, conventionally, there has been proposed a brake device for a rotating window that generates a viscous shear resistance force on a viscous body accommodated in a housing and thereby brakes the rotation of the rotating window. This type of rotating window braking device is generally configured such that a rotor and the rotor are attached to one end by a screw or the like, and the other end is rotatably attached to a window frame of the rotating window. A housing enclosing the rotor so as to form a sealed annular gap between the arm and the rotor, and a housing rotatably arranged with respect to the rotor; and the housing is provided at one end and the other end is rotated. A second arm configured to be rotatably attached to a window frame of the window, and a viscous body housed in a sealed annular gap for generating viscous shear resistance by relative rotation of the rotor with respect to the housing. I have it.

[0003]

In the above-described brake device for a rotating window, if the rotor is attached to the first arm with a screw or the like, play occurs during long-term use, and assembly, maintenance, etc. In this case, it is necessary to attach and remove screws, and the workability is extremely poor. The housing is composed of a pair of half housings for injecting a viscous material into the housing and housing the rotor, and the pair of half housings are fixed to each other by screws, rivets, or the like. Also, the workability of the housing is extremely poor in assembling and maintenance.

[0004] The present invention has been made in view of the above-mentioned points, and it is an object of the present invention to provide an easy-to-assemble, maintenance-inspection and easy-to-reproduce rotating device which is less likely to rattle even during long-term use. An object of the present invention is to provide a window braking device.

[0005]

According to the present invention, the object is to provide a rotor and the rotor provided at one end, and the other end provided to one of a window frame and a window frame of the rotating window. A first arm configured to be rotatably mounted,
A rotor is enclosed so as to form a sealed annular gap with the rotor, a housing rotatably arranged with respect to the rotor, and this housing is provided at one end, and the other end is rotated. A second arm configured to be rotatably attached to one of the window frame and the window frame of the window,
A viscous body accommodated in a sealed annular space to generate viscous shear resistance by relative rotation of the rotor with respect to the housing, and a serration is formed on one end side surface of the first arm; The rotor includes a shaft portion and an annular portion integrally formed with the shaft portion, and the shaft portion is fitted at one end thereof into a recess formed at one end of the first arm. A projection, and a serration that surrounds the projection and meshes with a serration on one end side surface of the first arm; the annular portion has a plurality of projections concentrically on both surfaces thereof; A housing portion integrally formed with the second arm and rotatably supporting the other end of the rotor shaft portion, and rotatably mounted on the rotor shaft portion facing the one housing portion. With the other housing part In addition, a projection is formed on the annular inner surface of one housing portion, and a recess fitted to the projection formed on the annular inner surface of one housing portion is formed on the annular outer surface of the other housing portion. A plurality of annular recesses, in which a plurality of ridges of the annular portion are located, are formed concentrically on the bottom surfaces of the two housing portions facing each other, and the ridges of the annular portion and the two housing portions are formed. This is achieved by a braking device for a rotating window in which a sealed annular gap is formed between the rotating window and the annular recess.

In one embodiment of the present invention, between one end of the first arm and the housing is provided a defining means for defining a maximum rotation angle of the second arm with respect to the first arm, Here, the defining means includes a projection having one end fixed to the housing, and a recess in which the other end of the projection is located and which is formed in an arc shape on one end side surface of the first arm. May be configured.

Further, intermediate stop means for intermediately stopping the rotation of the second arm with respect to the first arm at a given angle is provided between one end of the first arm and the housing, and the rotation window brake is provided. A device may be formed.

[0008]

In the rotating window brake device of the present invention, for example, the other end of the first arm is attached to the window frame of the rotating window, and the second arm is attached to the window frame. When the window shoji is opened, the second arm is relatively rotated with respect to the first arm, and the rotation relatively rotates the rotor in the housing. Due to the relative rotation of the rotor in the housing, a shear force acts on the viscous body contained in the sealed annular gap, and a viscous shear resistance is generated corresponding to the relative rotation of the rotor with respect to the housing. Thus, a braking force is applied to the opening of the window sash. The same operation is performed when the window shoji is closed. And in the braking device for a rotating window of the present invention, the first arm and the rotor are engaged with each other by the serration and the protrusion formed on the rotor to the recess formed at one end of the first arm. The two housing portions are fixed to each other in the rotational direction by mutual fitting of the recesses and protrusions formed on the respective outer peripheral portions, so that assembly and maintenance are performed. It is not necessary to attach and remove screws in such cases.

Next, the present invention will be described in more detail based on preferred embodiments shown in the drawings. The present invention is not limited to these specific examples.

[0010]

1 to 10 show a brake device 1 for a rotating window according to the present embodiment, in which a rotor 2 and a rotor 2 are provided at one end 3 and the other end 4 is a window frame 6 of a rotating window 5. In one of the window frames 7, a sealed annular gap 9 is formed between the rotor 2 and the first arm 8 configured to be rotatably attached to the window frame 7 in this example. And a housing 10 rotatably disposed in the direction A with respect to the rotor 2, and the housing 10 is provided at one end 11, and the other end 12 is a window frame of the rotary window 5. 6 and the window frame 7, the second arm 13 configured to be rotatably attached to the window frame 6 in this example, and the relative rotation of the rotor 2 with respect to the housing 10 in the A direction. In order to generate a viscous shear resistance, the viscous body 14 housed in the sealed annular space 9 is connected to the viscous body 14. It is Bei.

A serration 22 and a substantially rectangular recess 23 surrounded by the serration 22 are formed in a side surface 21 of one end 3 of the arm 8, and a through hole 25 is formed in the other end 4 of the arm 8. The shaft 27 is rotatably inserted into the through hole 25 via a bush 26 with a flange.
A bracket 28 is attached to one end of 7, and a washer 29 is attached to the other end of the shaft 27 by a screw 30 screwed to the shaft 27, and a cap 31 is attached to the washer 29. .

The rotor 2 has a shaft portion 35 and an annular portion 36 integrally formed with the shaft portion 35.
One end 37 has a recess 2 formed at one end 3 of the arm 8.
3 and a serration 39 surrounding the protrusion 38 and meshing with the serration 22 of the arm 8.
A plurality of ridges 43 are provided concentrically on both sides 41 and 42. At the time of injecting the viscous body 14 into the sealed annular space 9, three sides of each of the both sides 41 and 42 of this example are so filled that the viscous body 14 fills the corners of the sealed annular space 9.
The row of ridges 43 are discontinuous at three locations 44, 45, and 46 which are not continuous and are equiangular in the circumferential direction.

The housing 10 is formed integrally with the arm 13 and rotatably supports the other end 50 of the shaft 35 of the rotor 2 via a bush 51 with a flange.
2 and a shaft 35 of the rotor 2 facing the housing 52.
And the other housing part 53 rotatably mounted on the housing part 52. A plurality of projections 55 are formed on the annular inner side surface 54 of the housing part 52 at equal angular intervals in the circumferential direction. The annular outer surface 56 is formed with a plurality of recesses 57 into which the respective projections 55 of the housing portion 52 are fitted, and the opposite bottom surfaces 58 and 59 of the housing portions 52 and 53 have A plurality of annular recesses 60 and 61 in which each is located are formed concentrically, and between the ridge 43 and the annular recesses 60 and 61,
A sealed annular gap 9 is formed. Between the inner peripheral surface of the housing portion 53 and the outer peripheral surface of the shaft portion 35 and the housing portion 52
Sealing rings 62 and 63 are provided between the sealing rings 62 and 53 to seal the sealing annular space 9 respectively.

A through hole 70 is formed in the other end 12 of the arm 13, and a shaft 72 is rotatably inserted through the through hole 70 via a bush 71 with a flange. A bracket 73 similar to that described above is attached, and one end of the shaft 72 is attached to a screw 7 screwed thereto.
4 and the washer 75 is attached.
Has a cap 76 attached thereto. The washer 7
5 is disposed between the head of the screw 74 and the flange of the bush 71, even if the arm 13 is rotated, this rotation is not transmitted to the head of the screw 74, and thus the loosening of the screw 74 is prevented. 75 prevents this. The aforementioned washer 29 works in a similar manner.

On the other side surface 81 of one end 3 of the arm 8,
A circular recess 82 communicating with the recess 23 is formed,
The head of a screw 83 screwed into the shaft 35 is located in the recess 82, and the arm 8 is held by the screw 83 so as not to come off the shaft 35 in the axial direction. Caps 84 and 85 are provided at one end 3 of the arm 8 and the center of the housing 52.
Are fitted respectively.

The viscous body 14 accommodated in the sealed annular space 9 is preferably a fluid having an extremely high viscosity, for example, a viscous fluid made of silicon.

The rotating window braking device 1 of this embodiment further includes a defining means 90 for defining the maximum rotation angle of the arm 13 with respect to the arm 8 between the one end 3 of the arm 8 and the housing 53.
Is arranged. The defining means 90 includes a pair of protrusions 93 each having one end 91 fixed to the housing portion 53 via an annular fixing plate 92, and the other end 94 of each of the protrusions 93. 21 is provided with a pair of recesses 95 and 96 extending in an arc shape,
A plurality of recesses 97 are formed on the outer periphery of the fixing plate 92 in which the projections 55 of the housing part 52 are fitted. Is fixed to the housing part 52 so as not to rotate in the direction A. A cover 98 is fitted to the housing portion 52 so as to cover the fixing plate 92, and the fixing plate 92 is held by the housing portion 52 by the cover 98. An annular thrust bearing plate 99 is provided between one end 3 of the arm 8 and the cover 98.

The rotating window braking device 1 thus formed
Then, the bracket 28 is fixed to the window frame 7 and the bracket 73 is fixed to the window frame 6 by screws 101, whereby the other end 4 of the arm 8 is fixed to the window frame 7 and the other end 12 of the arm 13 is fixed to the window frame 6, respectively. It is attached. 9 and FIG.
As shown in FIG. 0, when the shoji 103 that is rotatable about the shaft 102 is opened, the arm 8 is rotated in the A direction relative to the arm 13 with the rotation of the shoji 103. The protrusion 38 fits into the recess 23 of the arm 8,
The rotor 2 meshed with the serrations 22 of the arm 8 by the serrations 39 also rotates relative to the housing 10 in the A direction together with the relative rotation of the arm 8 in the A direction. The housing 1 of the rotor 2
In the relative rotation with respect to zero, a shearing force acts on the viscous body 14 accommodated in the sealed annular space 9, and correspondingly, a shear resistance is generated in the rotor 2, so that the rotation of the arm 8 is braked. In the rotating window brake device 1, the viscous material 14
Because the rotation of the arm 8 is braked by the shearing force of
The more the opening and closing of the sash 103 is performed at a high speed, the greater the braking force is, which provides a preferable operation as the rotating window braking device 1. Note that, when the shoji screen 103 is rotated by a predetermined angle, the projection 93 comes into contact with the end of the recess 95, so that further rotation of the arm 8 is prevented.

In the brake device 1 for a rotating window, the rotor 2 and the arm 8 are fixed to each other by fitting the recesses 23 and the projections 38 and engaging the serrations 22 and 39. Of the projection 55 and the recess 57
Therefore, backlash is less likely to occur even in long-term use, and it can be disassembled only by loosening and removing the screw 83, making assembly, maintenance and inspection extremely easy.

By the way, in the above specific example, a pair of the projection 93 and the concave portion 95 are provided to form the defining means 90.
Alternatively, the defining means may be constituted by only one protrusion 93 and the recess 95.

As shown in FIG. 11, the arm 8 is provided at a given angle between one end 3 of the arm 8 and the housing 53.
An intermediate stop means 110 for intermediately stopping the rotation of the arm 13 with respect to the rotation window may be provided to constitute the rotating window brake device 1. The intermediate stopping means 110 of the present embodiment includes a hole 111 formed in the arm 8 and a coil spring 112 mounted in the hole 111.
A guide groove 113 formed in the fixed plate 92 and extending along the relative rotation direction A of the arm 13 with respect to the arm 8, a ball 114 urged by the coil spring 112 and disposed in the guide groove 113, And a hole 115 formed in the fixed plate 92 in connection with the guide groove 113 at a given angle of the arm 13 with respect to. In the intermediate stopping means 110,
As a result of the ball 114 partially falling into the hole 115 at a given angle of the arm 13 with respect to the arm 8 when opening and closing the sash 103, a constant rotational resistance increases at that rotational angle, and therefore at a rotational power below a predetermined value, The opening and closing of the sash 103 is temporarily stopped, and the sash 103 can be set and maintained in, for example, a half-open state.

A device 200 similar to the rotating window brake device 1 of this embodiment may be mounted above the rotating window 5.

[0023]

As described above, according to the present invention, it is possible to provide a rotating window brake device which is easy to assemble, maintain and inspect, has little rattling even in long-term use, and has excellent reliability. it can.

[Brief description of the drawings]

FIG. 1 is a sectional view taken along line II of the specific example shown in FIG.

FIG. 2 is a sectional view taken along line II-II of the specific example shown in FIG.

FIG. 3 is a plan view of one preferred embodiment of the present invention.

FIG. 4 is a bottom view of the first arm of the specific example shown in FIG. 3;

FIG. 5 is a plan view of a first arm and one housing part of the specific example shown in FIG. 3;

FIG. 6 is a plan view of the rotor of the specific example shown in FIG. 3;

FIG. 7 is a plan view of the other housing part of the specific example shown in FIG. 3;

FIG. 8 is a plan view of the fixing plate of the specific example shown in FIG.

9 is an explanatory diagram of an example in which the specific example shown in FIG. 3 is applied to a rotating window.

FIG. 10 is an operation explanatory diagram of the specific example shown in FIG. 3;

FIG. 11 is a partial sectional view of another preferred embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Brake device for a rotating window 2 Rotor 5 Rotating window 8 First arm 9 Sealed annular gap 13 Second arm 9

Claims (4)

(57) [Claims] 1. A first rotor having a rotor provided at one end and having the other end rotatably attached to one of a window frame and a window frame of a rotating window. A housing that includes the rotor so as to form a sealed annular gap between the arm and the rotor, a housing rotatably arranged with respect to the rotor, and the housing is provided at one end; A second arm having an end configured to be rotatably attached to one of the window frame and the window frame of the rotating window, and a viscous shear resistance force generated by relative rotation of the rotor with respect to the housing. A viscous body accommodated in the sealed annular space, a serration is formed on one end side surface of the first arm, the rotor is a shaft portion,
An annular portion integrally formed with the shaft portion, the shaft portion having at one end a projection fitted into a recess formed at one end of the first arm, and surrounding the projection; And a serration meshed with a serration on one end side surface of the first arm.The annular portion has a plurality of ridges concentrically on both surfaces thereof, and the housing is integrated with the second arm. One housing portion formed and rotatably supporting the other end of the rotor shaft portion, and the other housing portion rotatably mounted on the rotor shaft portion facing this one housing portion. A protrusion is formed on the annular inner surface of one housing part, and a protrusion is formed on the annular outer surface of the other housing part on the annular inner surface of the one housing part. A recess is formed in both housing parts On the facing bottom surface, a plurality of annular recesses in which the plurality of ridges of the annular portion are located are formed concentrically, and between the ridges of the annular portion and the annular recesses of both housing portions, A rotating window braking device having a sealed annular gap. 2. The rotating device according to claim 1, wherein a defining means for defining a maximum rotation angle of the second arm with respect to the first arm is provided between one end of the first arm and the housing. Window braking device. 3. The defining means includes: a projection having one end fixed to the housing; and a concave portion having the other end of the projection positioned at one end of the first arm and extending in an arc shape. The braking device for a rotating window according to claim 2, which is provided. 4. An intermediate stop means for intermediately stopping the rotation of the second arm with respect to the first arm at a given angle is provided between one end of the first arm and the housing. The braking device for a rotating window according to any one of claims 1 to 3.