JP7709838B2 - Automatic opening and closing device for sliding windows - Google Patents

Description

This disclosure relates to an automatic opening and closing device for sliding windows.

Conventionally, automatic door opening and closing devices that use linear motors to automatically open and close doors have been proposed (see, for example, Patent Document 1). The linear motor is installed at the top of the door and is configured to move the shoji screen using a hoist.

Japanese Patent Application Publication No. 9-137674

In addition to the linear motor, other structural components such as a hoist for moving the door are required, so the opening and closing device becomes larger and space is required to install it. For this reason, the opening and closing device is often installed at the same time as the door, where the space has been secured in advance, and it is not easy to install it on an existing door.

This disclosure relates to an automatic opening and closing device for sliding windows that has multiple shoji screens arranged within a window frame, wheels attached to the frames of the shoji screens, and a linear motor that drives the shoji screens so that they can be opened and closed automatically.

FIG. 2 is a front view of the sliding window of the first embodiment. FIG. 2 is a vertical cross-sectional view of the sliding window of the first embodiment. FIG. 2 is an electrical circuit diagram of the electrical opening and closing operation system for a sliding window according to the first embodiment. FIG. 4 is a flow chart showing the opening and closing control of a sliding window in the first embodiment. A vertical cross-sectional view of a sliding window of the second embodiment. FIG. 11 is a schematic diagram illustrating an automatic opening and closing device for a sliding window in accordance with a third embodiment. FIG. 13 is a schematic diagram illustrating a ventilation system according to a fourth embodiment.

The first embodiment of the present invention will be described in detail below with reference to the drawings. The sliding window 100 is a fixture that is placed in an opening 201 of a building 200 and opens and closes the opening 201. The sliding window 100 is configured so that it can be automatically opened and closed by an automatic opening and closing device 1. Figure 1 shows the sliding window 100 as seen from inside the room. As shown in Figure 1, the automatic opening and closing device 1 of the sliding window 100 has a window frame 2, a paper screen 3, a linear motor unit 4, a crescent lock 5, and a control unit 6.

The window frame 2 is installed inside the periphery of the opening 201. The window frame 2 has a frame body 20 and an inner frame 24. The frame body 20 is formed by combining long molded materials into a frame shape, and has an upper frame 21, a lower frame 22, left and right vertical frames 23, and an inner frame 24. The upper frame 21 extends in the front direction above the window frame 2. The lower frame 22 is arranged below the upper frame 21 facing the upper frame 21 and extends in the front direction. The vertical frames 23 extend in the vertical direction to connect the left and right ends of the upper frame 21 and the lower frame 22, and are arranged in pairs on the left and right of the sliding window 100.

As shown in FIG. 2, the upper frame 21 has upper rail portions 211 that protrude toward the inner circumference of the frame body 20 on the inside and outside of the room in the facing direction. The upper rail portions 211 are protrusions that guide the upper frame 31, which will be described later. The lower frame 22 has lower rail portions 221 that protrude toward the inner circumference of the frame body 20 on the inside and outside of the room in the facing direction. The lower rail portions 221 extend along the facing direction and engage with the door rollers 323, which will be described later.

As shown in FIG. 2, the inner frame 24 is a plate-shaped member that is arranged on the interior side of the upper frame 21 and the lower frame 22 and is arranged on the interior side of the opening 201. The inner frame 24 extends in the prospective direction along the upper frame 21 and the lower frame 22, and covers the upper and lower surfaces on the interior side of the opening 201 in the prospective direction.

The shoji screen 3 is arranged inside the frame body 20, and has multiple shoji screens, an inner shoji screen 310 and an outer shoji screen 320. The inner shoji screen 310 and the outer shoji screen 320 are formed to be the same size, with the inner shoji screen 310 arranged on the indoor side of the frame body 20 and the outer shoji screen 320 arranged on the outdoor side, and the opening 201 is opened and closed by moving in the viewing direction. The inner shoji screen 310 and the outer shoji screen 320 each have a frame 30 assembled into a frame shape inside the frame body 20, and a panel portion 35. The frame 30 has an upper frame 31, a lower frame 32, left and right vertical frames 33, and a joint frame 34.

The upper frame 31 extends in the front direction inside the upper frame 21. As shown in FIG. 2, the upper frame 31 has an upper frame main body 311 and an upper frame glass holding part 312. The upper frame main body 311 has a slit 311a formed on the surface facing the upper frame 21, and a rail holding part 311b that holds the upper rail part 211 of the upper frame 21 is arranged inside the upper frame main body 311. The upper rail part 211 is inserted into the upper frame main body 311 from the slit 311a and held by the rail holding part 311b. The upper frame glass holding part 312 is formed in a roughly U-shape that is open toward the inner circumference side of the frame 30 in a cross-sectional view, and the panel part 35 described later is held on this open side.

The lower frame 32 extends in the front direction inside the lower frame 22. The lower frame 32 has a lower frame main body 321, a lower frame glass holding part 322, and a door roller 323. The lower frame main body 321 has a slit 321a formed on the surface facing the lower frame 22, and the lower rail part 221 is inserted through the slit 321a. The door roller 323 is provided inside the lower frame main body 321 and engages with the lower rail part 221 to rotate. The rotation of the door roller 323 allows the shoji 3 to move inside the lower frame 32. The lower frame glass holding part 322 is formed in an approximately U-shape that is open toward the inner circumference side of the frame 30 in a cross-sectional view, and the panel part 35 described later is held on this open side.

The vertical frame 33 extends to connect the upper frame 31 and the lower frame 32 on the side facing the vertical frame 23 of the inner screen 310 and the side facing the vertical frame 23 of the outer screen 320. The vertical frame 33 is formed in a roughly U-shaped cross section that opens toward the inner periphery of the frame body 20 in the viewing direction, and the panel section 35 (described later) is held in the recess on the open side.

As shown in FIG. 1, the joint frame 34 faces the vertical frame 33 in the front direction in each of the inner screen 310 and the outer screen 320, and extends to connect the upper frame 31 and the lower frame 32. The joint frame 34 is located in the center of the front direction of the screen 3, and extends vertically where the inner screen 310 and the outer screen 320 overlap in the front direction. The joint frame 34 has an inner joint frame 341 provided on the inner screen 310 and an outer joint frame 342 provided on the outer screen 320. The joint frame 34 is formed in a cross-sectional shape that is roughly U-shaped and opens toward the vertical frame 33, and the panel section 35 described later is held in the recess on the open side.

The panel section 35 has glass 351 and a grating channel 352. The glass 351 is a surface material that covers the opening 201. The panel section 35 has double glazing, and two pieces of glass 351, one on the outside and one on the inside of the room, are arranged in one shoji screen 3. The grating channel 352 is a rubber packing that holds the two pieces of glass and has a roughly U-shaped cross section. The grating channel 352 is held in the recesses of the upper frame glass holding section 312, the lower frame glass holding section 322, the vertical frame 33, and the joint frame 34 of the frame 30.

The linear motor unit 4 is a drive unit that drives the inner screen 310 so that it can be opened and closed automatically. The linear motor unit 4 is attached to an existing sliding window 100. The linear motor unit 4 has a linear motor 40 and a bracket 43. The linear motor 40 has a coil unit 41 and a magnet unit 42. The coil unit and magnet unit 42 are arranged outside the inner screen 310. The linear motor 40 generates a magnetic field by passing a current through the coil unit 41, and moves the inner screen 310 in the forward direction by the attractive force between the N pole and the S pole and the repulsive force between the N poles and the S poles.

As shown in FIG. 2, the coil portion 41 is disposed and fixed to the underside of the inner frame 24 of the window frame 2. As shown in FIG. 1, the coil portion 41 is disposed in approximately the center of the inner frame 24 in the viewing direction. A current is applied to the coil portion 41 from a power source (not shown).

The magnet section 42 is arranged on the interior side surface of the upper frame 31 of the inner screen 310, extending from one side in the front direction to the other. The magnet section 42 is arranged with alternating north pole magnets and south pole magnets. The magnet section 42 is arranged below the coil section 41 in a position facing the coil section 41. Since the front length of the magnet section 42 is longer than the front length of the coil section 41, as shown in Figure 1, part of the magnet section 42 extends beyond the coil section 41 to the vertical frame 33 side.

The bracket 43 is a member that connects the magnet part 42 to the shoji screen 3. The bracket 43 is connected to the upper end side of the inner joint frame 341. As shown in FIG. 2, the bracket 43 is formed in a generally L-shape in vertical cross section. The bracket 43 has a frame connection part 431 and a magnet connection part 432. One end of the frame connection part 431 is connected to the inner joint frame 341 and extends toward the inside of the room in the projection direction. The frame connection part 431 is formed in a generally U-shape in horizontal cross section and is attached so as to cover the projection surface and the facing surface of the inner joint frame 341. The magnet connection part 432 extends upward from the indoor end of the frame connection part 431 and is fixed to the outdoor surface of the magnet part 42. The magnet part 42 is connected to the inner screen 310 by the bracket 43, so that the inner screen 310 moves as the magnet part 42 repels the coil part 41 and moves linearly.

The crescent lock 5 is a key that secures the inner and outer screens 310 and 320 to prevent the sliding window 100 from opening. The crescent lock 5 has a base 51, a crescent 52, a receiving bracket 53, and an unlocking sensor 54.

The base 51 is fixed to the approximate center of the inner joint frame 341 in the vertical direction. The crescent 52 is a locking part rotatably fixed to the base 51, and has a base 52a connected to the base 51, a curved hanging part 52b formed around the base 52a, and a lever 52c extending linearly from the hanging part 52b. The receiving bracket 53 is fixed to the outer joint frame 342 and is positioned at a position corresponding to the hanging part 52b. When the lever 52c is rotated, the hanging part 52b rotates together with the lever 52c and engages with the receiving bracket 53. This engages the crescent lock 5, and the inner screen 310 and the outer screen 320 are locked so that they cannot be opened.

The unlocking sensor 54 has a permanent magnet and a magnetic sensor, and detects whether the crescent lock 5 is unlocked or locked by magnetically detecting the rotational position of the crescent 52. The unlocking sensor 54 is located on the base 52a. The unlocking sensor 54 can transmit the detection result to the control unit 6 via a wireless chip also located on the base 52a.

The control unit 6 is a central processing unit that drives the linear motor unit 4 in response to the detection result of the unlocking sensor 54. The control unit 6 is disposed in a position that is not visible from the outside, such as inside the upper frame 21. The control unit 6 receives the detection result of the unlocking sensor 54 and issues an instruction to drive the linear motor unit 4. The unlocking sensor 54, the control unit 6, and the linear motor unit 4 constitute an electrical opening and closing operation system for the sliding window 100.

3 and 4, when the crescent lock 5 is unlocked, the unlocking detection switch of the unlocking sensor 54 is turned on to detect that the lock has been unlocked (S1). The detection of the unlocking sensor 54 activates the electric opening and closing operation system of the sliding window 100 by the linear motor unit 4. After the crescent lock 5 is unlocked, when the user of the sliding window 100 presses, for example, a button not shown, the opening and closing switch 56 for opening the shoji screen 3 is turned ON (S2). When the opening and closing switch is turned ON, the linear motor unit 4 is driven via the control unit 6, and the shoji screen 3 is operated to open (S3). The opening and closing switch 56 may be arranged, for example, as a button on the indoor surface of the inner joint frame 341. The opening and closing switch 56 may have a manual opening and closing switch 561 that opens only while the button is pressed, or an automatic opening and closing switch 562 that opens fully by pressing the button once, and may be configured to be selected and pressed as appropriate when in use.

When closing the door 3, the user presses a button to turn off the opening/closing switch 56 that closes the door 3 (S4). When the opening/closing switch 56 is turned off, the door 3 is closed by the movement of the linear motor unit 4 via the control unit 6 (S5). With the door 3 closed, the unlocking sensor 54 detects whether the crescent lock 5 is unlocked or not. If it does not detect that the crescent lock 5 is unlocked (S6), the opening/closing control of the door 3 in the electric opening/closing operation system of the sliding window 100 ends. If it detects that the crescent lock 5 is unlocked (S1), the opening/closing control of the door is performed again.

This embodiment provides the following effects. The automatic opening and closing device 1 is configured to include a plurality of shoji screens 3 arranged within a window frame 2, a roller 323 provided on the frame 30 of the shoji screens 3, and a linear motor 40 that drives the shoji screens 3 so that they can be opened and closed automatically. Since the shoji screens 3 provided with the rollers 323 are driven by the linear motor 40, there is no need to hang the shoji screens 3 from above, and the automatic opening and closing device 1 that moves the shoji screens 3 including the linear motor 40 can be made compact. This makes it possible to reduce the space required to install the automatic opening and closing device 1. In addition, since the automatic opening and closing device 1 is compact and the shoji screens 3 are moved by the existing rollers 323, it becomes possible to install the automatic opening and closing device 1 on an existing sliding window 100 later.

According to this embodiment, the linear motor 40 is configured to include a coil section 41 to which a current is applied and a magnet section 42, and the coil section 41 and the magnet section 42 are disposed outside the shoji screen 3. By disposing the linear motor 40 outside the shoji screen 3, such as on the indoor side of the upper frame 31 of the shoji screen 3, it becomes easy to retrofit the linear motor 40 to an existing sliding window 100.

According to this embodiment, the coil portion 41 is disposed on the window frame 2 side, and the magnet portion 42 is disposed in a position facing the coil portion 41 on the shoji screen 3 side. By attaching the coil portion 41 to the inner frame 24 of the window frame 2 and disposing the magnet portion 42 in a position facing the coil portion 41 on the shoji screen 3 side, the shoji screen 3 can be opened and closed automatically. This makes it easy to retrofit the automatic opening and closing device 1.

According to this embodiment, the device further includes a bracket 43 that connects the magnet part 42 to the shoji screen 3. The bracket 43 is connected to the inner joint frame 341 of the inner shoji screen 310 that is located on the indoor side of the shoji screen 3. By attaching the bracket 43 to the inner joint frame 341, the magnet part 42 can be connected to the shoji screen 3, so the space required for mounting the linear motor 40 can be reduced, and the automatic opening and closing device 1 can be easily retrofitted to the sliding window 100.

According to this embodiment, the bracket 43 is formed in a generally L-shaped cross section and is configured to include a frame connection part 431 that is connected to the inner joint frame 341 and extends from the inner joint frame 341 to the indoor side, and a magnet connection part 432 that extends upward from the indoor end of the frame connection part 431 and is fixed to the outdoor side surface of the magnet part 42. This makes it easy to retrofit the bracket 43 to the shoji screen 3.

The magnet part 42 is positioned so that it extends from one side to the other in the front direction of the upper frame 31 of the shoji screen 3. This allows the linear motor 40 to obtain the power necessary to open and close the shoji screen 3, and the magnet part 42 can be easily attached to the sliding window 100.

This disclosure is not limited to the above embodiment, and modifications, improvements, etc. within the scope of achieving the object of this disclosure are included in this disclosure. In the second embodiment, the linear motor 40A of the automatic opening and closing device 1A is arranged inside the upper frame 31. As shown in FIG. 5, the coil unit 41A is attached to the lower end side of the upper rail portion 211 on the inner screen 310 side of the upper frame 21. The lower end of the upper rail portion 211 is inserted into the upper frame body portion 311 from the slit 311a in the upper frame body portion 311 of the upper frame 31. The coil unit 41A is arranged approximately in the center of the upper frame body portion 311 in the projection direction. As shown in FIG. 1, the coil unit 41A is arranged approximately in the center of the sliding window 100 in the projection direction.

The magnet section 42 is disposed inside the upper frame 31, one each between the rail retaining section 311b and the indoor surface of the upper frame main body section 311, and between the rail retaining section 311b and the outdoor surface of the upper frame main body section 311. Two magnet sections 42 are disposed facing each other on the indoor and outdoor sides, with the coil section 41A sandwiched between the two magnet sections 42.

In the second embodiment, the inner screen 310 moves due to the repulsion between the coil portion 41 and the magnet portion 42, just as in the first embodiment, so the same effect as in the first embodiment is achieved. Furthermore, according to the second embodiment, the linear motor 40A is built into the upper frame 21 and the upper stile 31, so it is not visible from the outside, which increases the freedom of design for the exterior of the sliding window 100 and also improves its aesthetic appearance.

As a modification of the first or second embodiment, the linear motor 40, 40A of the first or second embodiment may be placed on the outer screen 320. When a sliding window is placed inside a building, there is no need to consider weather resistance, so if the linear motor 40 of the first embodiment is attached to the outer screen 320, the appearance seen from the inner screen 310 side will be neat. The linear motor 40A of the second embodiment can also be attached to a desired position depending on the indoor configuration of the building, improving design freedom.

In the above embodiment, an example was described in which the opening and closing of the shoji screen 3 was performed using a button or the like (not shown). However, the opening and closing of the shoji screen 3 may be controlled using a remote controller or the like. Furthermore, the control unit may include a timer or the like. It may also be set to automatically control ventilation in a room or building in which a sliding window is installed when the crescent lock 5 is unlocked.

Figure 6 is a schematic diagram illustrating an automatic opening and closing device 1B for sliding windows according to the third embodiment. As shown in Figure 6, in the third embodiment, the automatic opening and closing device 1B opens and closes multiple sliding windows 101, 102. The sliding windows 101, 102 are arranged, for example, in opposing positions in a building or room. The control unit 6 controls the sliding windows 101, 102 to open simultaneously. By opening multiple sliding windows 101, 102 simultaneously, natural ventilation is promoted.

Figure 6 is a schematic diagram, and the number of sliding windows 101, 102 does not necessarily have to be two, and they may be different sizes. In Figure 6, the sliding windows 101, 102 are arranged opposite each other. However, the arrangement of multiple sliding windows is not limited.

Figure 7 is a schematic diagram illustrating a ventilation system 10 according to a fourth embodiment. The ventilation system 10 has a plurality of sliding windows 103-105, a ventilation fan 7, and an automatic opening/closing device 1C.

The multiple sliding windows 103-105 are installed in any location within the building 200, such as the dirt floor near the entrance, an area with a balcony, the living room, etc. The configuration of the sliding windows 103-105 is the same as in the first embodiment.

The ventilation fan 7 is provided on the wall 202 that separates the outside from the inside of the building 200. The ventilation fan 7 has a fan 71, a main body 72, and a ventilation fan control unit 73. The fan 71 has multiple blades and draws in outside air by rotating. The main body 72 houses the fan 71 and supports it so that it can rotate. The ventilation fan control unit 73 controls the driving and stopping of the fan 71. The ventilation fan control unit 73 is electrically connected to the control unit 6 of the automatic opening and closing device 1C.

In the fourth embodiment, the opening and closing of the sliding windows 103 to 105 is controlled in conjunction with the ventilation fan 7. That is, when a user presses a switch (not shown) to operate the ventilation fan 7, a signal is sent from the ventilation fan control unit 73 to the control unit 6 of the automatic opening and closing device 1C. The control unit 6 receives a signal that the ventilation fan 7 has started operating. The control unit 6 drives the linear motor 40, and the sliding screens 3 of the sliding windows 103 to 105 are opened. Also, when a user presses the switch of the ventilation fan 7 to stop the operation of the ventilation fan 7, a signal is sent from the ventilation fan control unit 73 to the control unit 6 of the automatic opening and closing device 1C. The control unit 6 receives a signal that the ventilation fan 7 has stopped operating. The control unit 6 drives the linear motor 40, and the sliding screens 3 of the sliding windows 103 to 105 are closed, and ventilation ends. The sliding windows that are opened and closed in conjunction with the ventilation fan 7 can be set arbitrarily, and may be all or some of the multiple sliding windows 103 to 105. The diagram of building 200 is just an example, and the shape is not important.

According to the fourth embodiment of the ventilation system 10, forced ventilation is promoted by opening the screens 3 of the sliding windows 100 in conjunction with the ventilation fan 7. Even if the user does not open or close the screens of each sliding window 100, all sliding windows 100 connected to the ventilation system 10 are opened and closed in conjunction with each other by starting the ventilation fan 7 for ventilation, which increases convenience.

REFERENCE SIGNS LIST 1 Automatic opening and closing device, 2 Window frame, 3 Shoji screen, 6 Control unit, 7 Ventilation fan, 10, Joy system, 30 Frame, 40 Linear motor, 41 Coil unit, 42 Magnet unit, 43 Bracket, 73 Ventilation fan control unit, 100 Sliding window, 323 Door roller, 341 Inner joint frame, 431 Frame connection unit, 432 Magnet connection unit

Claims (10)

An automatic opening and closing device for sliding windows having a plurality of sliding windows,
Several shoji screens are arranged within the window frame,
A roller provided on the frame of the shoji screen;
A linear motor that drives the shoji screen so that it can be automatically opened and closed;
A lock capable of fixing the screen;
an unlocking sensor for detecting the open/closed state of the lock;
A control unit that drives the linear motor,
The control unit controls the driving of the linear motor based on the detection result of the unlocking sensor,
The first sliding window and the second sliding window are arranged in opposing positions in a building or room,
The control unit simultaneously opens and closes the shoji screens in the multiple sliding windows.
Automatic opening and closing device for sliding windows. The lock has a base, a crescent rotatably fixed to the base, and a receiving bracket fixed to the frame of the shoji screen,
2. The automatic opening and closing device for a sliding window according to claim 1, wherein the unlocking sensor has a permanent magnet and a magnetic sensor, and is disposed in the crescent. The linear motor has a coil portion and a magnet portion to which a current is applied,
The automatic opening and closing device for a sliding window according to claim 1 or 2 , wherein the coil portion and the magnet portion are arranged outside the sliding screen. 4. The automatic opening and closing device for a sliding window according to claim 3 , wherein the coil portion is disposed on the window frame side, and the magnet portion is disposed in a position facing the coil portion on the shoji side. The magnet further includes a bracket for connecting the magnet portion to the screen.
5. The automatic opening and closing device for a sliding window according to claim 3 or 4 , wherein the bracket is connected to an inner frame of an inner sash arranged on the inside side of the sash. The bracket is formed in a generally L-shape in cross section,
A frame connection portion connected to the inner frame and extending from the inner frame to the indoor side;
6. The automatic opening and closing device for a sliding window as described in claim 5 , further comprising: a magnet connection portion extending upward from the indoor end of the frame connection portion and fixed to the outdoor side surface of the magnet portion. The automatic opening and closing device for a sliding window according to any one of claims 3 to 6 , wherein the magnet portion is arranged to extend from one side to the other in the front direction of the upper frame of the sliding screen. The linear motor has a coil portion and a magnet portion to which a current is applied,
The automatic opening and closing device for a sliding window according to claim 1 , wherein the linear motor is disposed inside the frame. The coil portion is disposed at a substantially central portion of the upper frame of the frame in a projection direction,
The automatic opening and closing device for a sliding window according to claim 8 , wherein the magnet parts are arranged so as to face each other on the indoor side and the outdoor side with the coil part in between. A ventilation fan installed in a wall separating the exterior and interior of the building;
An automatic opening and closing device for a sliding window having a plurality of shoji screens arranged within a window frame, door rollers provided on the frames of the shoji screens, and a linear motor that drives the shoji screens so that they can be opened and closed automatically;
A control unit that controls opening and closing of the automatic opening and closing device;
A ventilation fan control unit that controls opening and closing of the ventilation fan,
When the operation of the ventilation fan is started, at least one screen is opened,
When the operation of the ventilation fan is stopped, the one screen that was opened when the operation was started is closed.