Switchgear and method for controlling the same

Abstract

To provide a switchgear that restricts an arm opening / closing a sliding door from moving to a position different from a predetermined position when opening the sliding door, and a method for controlling the switchgear.SOLUTION: A switchgear 1 for opening / closing a sliding door openably / closeably mounted on a frame, comprises: a support part 50 provided on the sliding door; a rotating part 10 rotatably provided on the frame; an interlocking part 20 movable in a left-right direction H interlocking with a rotation of the rotating part 10; an arm part 30 capable of opening / closing the sliding door by moving the support part 50 in an indoor / outdoor direction D interlocking with a movement of the interlocking part 20 in the left-right direction H; and a regulating part 40 having a contact part 43 that can contact the rotating part 10 or the interlocking part 20. The rotation of the rotating part 10 or the movement of the interlocking part 20 is regulated by the contact part 43, thereby holding the arm part 30 in a predetermined position when opened.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present disclosure relates to an opening / closing device and a method for controlling the opening / closing device.

Background Art

[0002] Conventionally, in a sliding window, an electric opening / closing device that drives an electric motor to open and close a shoji screen is known. A manual opening / closing device that opens and closes a shoji screen by operating a manual handle is also known.

[0003] The window opening / closing device disclosed in Patent Document 1 includes a rotating body that rotates by the rotation of a drive shaft provided on a window frame, an interlocking member that slides in the left-right direction along the window frame in conjunction with the rotation of the rotating body, and a first swing arm and a second swing arm that are driven by the interlocking member to open and close a shoji screen. The tip of the second swing arm is slidably supported within a long hole that is long in the left-right direction and provided on the shoji screen.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In a conventional opening / closing device that opens and closes a shoji screen by the tip of an arm moving in the left-right direction, there is a possibility that the tip of the arm when the shoji screen is open moves to a position different from a predetermined position due to construction errors. In the case of an electric opening / closing device that opens and closes by the rotation of a geared motor, there is a possibility that the tip of the arm when the shoji screen is open moves to a position different from a predetermined position due to variations in the output of the geared motor.

[0006] Based on the above circumstances, an object of the present disclosure is to provide an opening / closing device and a control method for the opening / closing device that suppress the movement of an arm for opening / closing a shoji door to a position different from a predetermined position when the shoji door is opened.

Means for Solving the Problems

[0007] An opening / closing device according to an aspect of the present disclosure is an opening / closing device for opening / closing a shoji door that is openably attached to a frame body, and includes a support portion provided on the shoji door, a rotating portion rotatably provided on the frame body, an interlocking portion that can move in the left-right direction in conjunction with the rotation of the rotating portion, and an arm portion that can open and close the shoji door by moving the support portion in the indoor / outdoor direction in conjunction with the movement of the interlocking portion in the left-right direction, and a restricting portion having a contact portion that can contact the rotating portion or the interlocking portion. The arm portion is held at a predetermined position when opened by the rotation of the rotating portion or the movement of the interlocking portion being restricted by the contact portion.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Modes for Carrying Out the Invention

[0009] (First Embodiment) Hereinafter, a first embodiment of the present disclosure will be described with reference to the drawings.

[0010] The opening / closing device 1 includes a rotating part 10, an interlocking part 20, an arm part 30, a restricting part 40, a supporting part 50, a driving part 60, and a control part 70. The opening / closing device 1 is provided on a horizontally-sliding window and is a window electric opening / closing device capable of opening and closing the horizontally-sliding window. The opening / closing device 1 may be a window electric opening / closing device capable of opening and closing a sliding window other than the horizontally-sliding window, such as a vertically-sliding window.

[0011] The rotating part 10, the interlocking part 20, the arm part 30, the restricting part 40, the driving part 60, and the control part 70 are provided on a frame body included in the horizontally-sliding window where the opening / closing device 1 is provided. The supporting part 50 is provided on a shoji screen included in the horizontally-sliding window where the opening / closing device 1 is provided. In FIG. 1, the driving part 60 and the control part 70 are omitted.

[0012] The horizontally-sliding window where the opening / closing device 1 is provided is provided in an opening formed in a wall part of a building. The shoji screen housed in the frame body of the horizontally-sliding window can be opened and closed from a state of closing the inside of the frame body to a state of opening the lower end part toward the outdoor side.

[0013] In the following description, the direction connecting the outdoor side FR and the indoor side RR is referred to as the indoor-outdoor direction D. The indoor-outdoor direction D corresponds to the prospective direction. Among the finding directions orthogonal to the indoor-outdoor direction D, the direction along the horizontal direction is referred to as the left-right direction H. Regarding the left-right direction H, the direction seen from the indoor side RR is referred to as the right side RT and the left side LT. The vertical direction connecting the upper side UP and the lower side LO is referred to as the up-down direction V.

[0014] The rotating part 10 includes a first rotating part 11 and a second rotating part 12.

[0015] The first rotating part 11 is rotatably connected to the driving part 60 with the first rotation axis O1 as the rotation center. The driving part 60 will be described later.

[0016] The first rotating part 11 has a first opening 11a at the end on the right side RT and a second opening 11b at the end on the left side LT. The first rotation axis O1 extends in the vertical direction V and is a rotation axis passing through the first opening 11a. The first rotating part 11 is a member formed of, for example, a flat metal plate.

[0017] The second rotating part 12 is rotatably connected to the first rotating part 11 with the second rotation axis O2 as the rotation center. The second rotating part 12 has a first opening 12a at the end on the right side RT and a second opening 12b at the end on the left side LT.

[0018] The second rotation axis O2 extends in the vertical direction V and is a rotation axis passing through the second opening 11b and the first opening 12a. The first rotating part 11 and the second rotating part 12 are rotatably connected by, for example, a cylindrical engagement member that penetrates the second opening 11b and the first opening 12a in the vertical direction V. The second rotating part 12 is a member formed of, for example, a flat metal plate.

[0019] The interlocking part 20 includes a first interlocking part 21 and a second interlocking part 22.

[0020] The first interlocking part 21 is a member extending in the horizontal direction H and is provided so as to be movable in the horizontal direction H on the frame body provided with the sliding window. The second rotating part 12 is rotatably connected to the lower surface LO of the first interlocking part 21 with the third rotation axis O3 as the rotation center.

[0021] The third rotation axis O3 extends in the vertical direction V and is a rotation axis passing through the second opening 12b. The second rotating part 12 and the first interlocking part 21 are rotatably connected by, for example, a cylindrical engagement member that penetrates the second opening 12b in the vertical direction V. The first interlocking part 21 is a member formed of, for example, a flat metal plate.

[0022] The second interlocking part 22 is connected to the lower surface LO of the first interlocking part 21. The second interlocking part 22 is movable in the horizontal direction H together with the first interlocking part 21. The second interlocking part 22 has a first opening 22a and a second opening 22b that penetrate in the vertical direction V.

[0023] The first opening 22a is an elongated hole extending in the left - right direction H. The second opening 22b is provided on the right side RT of the first opening 22a and is an elongated hole extending in the left - right direction H. In the second opening 22b, the portion on the left side LT of the intermediate portion in the left - right direction H is curved toward the outdoor side FR. The second interlocking portion 22 is, for example, a member formed of flat - plate - shaped metal.

[0024] The arm portion 30 includes a first arm portion 31 and a second arm portion 32.

[0025] The first arm portion 31 is a member extending in the left - right direction H when the opening - closing device 1 is in the closed - state arrangement. The first arm portion 31 has a first opening 31a at the end on the left side LT, a second opening 31b in the intermediate portion in the left - right direction H, and a third opening 31c at the end on the right side RT.

[0026] The closed state of the opening - closing device 1 refers to the arrangement of the opening - closing device 1 when the horizontal sliding window provided with the opening - closing device 1 is in the closed state.

[0027] A cylindrical first convex member 33 whose central axis extends in the vertical direction V is connected to the first opening 31a. A cylindrical second convex member 34 whose central axis extends in the vertical direction V is connected to the second opening 31b. The first convex member 33 and the second convex member 34 do not necessarily have a strictly cylindrical shape.

[0028] The first convex member 33 and the second convex member 34 are connected to the upper side UP of the first arm portion 31. The first convex member 33 is provided within the first opening 22a. The second convex member 34 is provided within the second opening 22b.

[0029] The first arm portion 31 is rotatable with respect to the second interlocking portion 22 about a fourth rotation axis O4 that coincides with the central axis of the first convex member 33. The first arm portion 31 is, for example, a member formed of flat - plate - shaped metal.

[0030] The second arm portion 32 is a member extending in the left-right direction H when the opening / closing device 1 is located in the closed state arrangement. The dimension of the second arm portion 32 in the left-right direction H is larger than the dimension of the first arm portion 31 in the left-right direction H.

[0031] At an intermediate portion of the second arm portion 32 in the left-right direction H, a cylindrical first convex portion 32a whose central axis extends in the up-down direction V is provided. The first convex portion 32a does not necessarily have to be exactly cylindrical. The first convex portion 32a protrudes upward UP from the second arm portion 32.

[0032] The first convex portion 32a is engaged with the third opening 31c. The second arm portion 32 is rotatable with respect to the first arm portion 31 about a fifth rotation axis O5 that coincides with the central axis of the first convex portion 32a.

[0033] The second arm portion 32 has an opening 32b at the right side RT end. At the left side LT end of the second arm portion 32, a cylindrical second convex portion 32c whose central axis extends in the up-down direction V is provided. The second convex portion 32c does not necessarily have to be exactly cylindrical.

[0034] The second convex portion 32c protrudes downward LO from the second arm portion 32. The second arm portion 32 is a member formed of, for example, a flat plate-shaped metal.

[0035] The regulating portion 40 is a member having an L shape in a plan view from the left-right direction H. The regulating portion 40 does not necessarily have to be exactly L-shaped. The lower side LO end of the regulating portion 40 is bent toward the outdoor side FR and has an opening 41 penetrating in the up-down direction V.

[0036] The second arm portion 32 is rotatable with respect to the regulating portion 40 about a sixth rotation axis O6 passing through the opening 32b and the opening 41. The second arm portion 32 and the regulating portion 40 are rotatably connected, for example, by a cylindrical engaging member penetrating the opening 32b and the opening 41 in the up-down direction V.

[0037] At the upper end of the regulating portion 40 on the upper side UP, a recess 42 that is recessed on the lower side LO is provided. The recess 42 is a portion where the middle part in the left - right direction H is cut out in a U - shape at the upper end of the regulating portion 40 on the upper side UP. The recess 42 does not necessarily have to be exactly U - shaped.

[0038] The first rotating portion 11 is provided in the recess 42. As shown in FIG. 3, the regulating portion 40 has a contact portion 43 that contacts the contacted portion 11s of the first rotating portion 11 when the opening - closing device 1 is in the open state. The contacted portion 11s is the side surface on the right - hand side RT of the first rotating portion 11. The regulating portion 40 is, for example, a member formed of a flat - plate - shaped metal.

[0039] The open state of the opening - closing device 1 indicates the arrangement of the opening - closing device 1 when the side - sliding window provided with the opening - closing device 1 is open. The rotation angle of the first rotating portion 11 around the first rotation axis O1 is restricted when the contacted portion 11s and the contact portion 43 come into contact with each other.

[0040] Hereinafter, the arrangement of the opening - closing device 1 when the rotation of the first rotating portion 11 around the first rotation axis O1 stops due to the contact between the contacted portion 11s and the contact portion 43 is also referred to as the allowable open state. The opening - closing device 1 can open the shoji provided in the side - sliding window by moving from the closed - state arrangement to the allowable open - state arrangement. The movement of the opening - closing device 1 from the closed - state arrangement to the allowable open - state arrangement will be described later.

[0041] The support portion 50 is a member having an L - shape in a plan view from the left - right direction H. The support portion 50 does not necessarily have to be exactly L - shaped. The support portion 50 is provided on the shoji of the side - sliding window provided with the opening - closing device 1. The support portion 50 is, for example, a member formed of a flat - plate - shaped metal.

[0042] The lower end of the support portion 50 on the lower side LO is bent toward the indoor side RR and has a long hole 51 that penetrates in the vertical direction V. The long hole 51 has a first hole portion 51a extending in the left - right direction H and a second hole portion 51b provided at the right - hand side RT end of the first hole portion 51a.

[0043] The first hole portion 51a and the second hole portion 51b are openings provided continuously in the left - right direction H. The dimension of the second hole portion 51b in the inside - outside direction D is larger than the dimension of the first hole portion 51a in the inside - outside direction D.

[0044] The second convex portion 32c provided at the tip of the second arm portion 32 is provided in the long hole 51 of the support portion 50. At the lower - side LO end of the second convex portion 32c, a large - diameter portion having a larger diameter than other portions of the second convex portion 32c is provided. The diameter of the large - diameter portion of the second convex portion 32c is larger than the dimension of the first hole portion 51a in the inside - outside direction D and smaller than the dimensions of the second hole portion 51b in the inside - outside direction D and the left - right direction H.

[0045] Therefore, when the second convex portion 32c is provided in the first hole portion 51a, the second arm portion 32 does not come off from the support portion 50. When the second convex portion 32c is provided in the second hole portion 51b, the second arm portion 32 can be detached from the support portion 50 by separating the second convex portion 32c upward UP from the second hole portion 51b. In this way, by detachably connecting the second arm portion 32 to the support portion 50, the maintainability of the opening - closing device 1 can be improved.

[0046] The drive portion 60 includes an electric motor and a housing for storing the electric motor, and is an electric drive unit that electrically drives the opening - closing device 1. The electric motor of the drive portion 60 is, for example, a geared motor. The drive portion 60 may have gears or the like for transmitting the driving force of the geared motor.

[0047] When the geared motor of the drive portion 60 drives, the first rotating portion 11 rotates about the first rotation axis O1 as the rotation center.

[0048] The control unit 70 is a control device capable of controlling the opening / closing device 1. The geared motor included in the drive unit 60 is driven based on the signal received from the control unit 70. The control unit 70 is connected to, for example, an input device and controls the drive unit 60 based on the operation input to the input device. The user can operate the opening / closing device 1 installed at a remote location by inputting an operation to the input device at hand. The control unit 70 and the input device may be connected either wired or wirelessly.

[0049] The control unit 70 is, for example, a program-executable device including a processor, a memory, a storage unit, etc. Each function of the control unit 70 is realized, for example, by one or more processors such as a CPU (Central Processing Unit) and a GPU (Graphics Processing Unit) executing a program stored in a program memory. These functions may be realized by hardware (e.g., circuitry) such as an LSI (Large Scale Integration), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a PLD (Programmable Logic Device). The above functions may be realized by a combination of software and hardware. The storage unit is realized by a flash memory, an EEPROM (Electrically Erasable Programmable Read-Only Memory), a ROM (Read-Only Memory), a RAM (Random Access Memory), etc.

[0050] Next, a control method for the opening / closing device 1 will be described. The control method for the opening / closing device 1 described below is a control method for moving the opening / closing device 1 from a closed-state arrangement to a permitted open-state arrangement and opening the side-sliding window provided with the opening / closing device 1 by the opening / closing device 1.

[0051] When the opening / closing device 1 is activated, the control unit 70 controls the drive unit 60 to drive the geared motor included in the drive unit 60. The opening / closing device 1 is activated, for example, when an operation is input to the above-described input device. The control unit 70 controls the drive unit 60 based on the operation input to the input device.

[0052] When the drive unit 60 is driven by the control unit 70, the geared motor included in the drive unit 60 rotates the first rotating part 11. The first rotating part 11 rotates about the first rotation axis O1 as the rotation center.

[0053] When the opening / closing device 1 moves from the closed state arrangement to the allowable open state arrangement, the first rotating part 11 rotates clockwise about the first rotation axis O1 in a plan view from the upper side UP shown in FIG. 2. The second opening 11b in the first rotating part 11 moves to the right side RT and the outdoor side FR.

[0054] The first opening 12a in the second rotating part 12 connected to the second opening 11b moves to the right side RT and the outdoor side FR. The second opening 12b in the second rotating part 12 moves to the right side RT. The second opening 12b does not move in the indoor / outdoor direction D.

[0055] As shown in FIG. 3, the second rotating part 12 rotates with respect to the interlocking part 20 about the third rotation axis O3. The second rotating part 12 rotates with respect to the first rotating part 11 about the second rotation axis O2.

[0056] When the second opening 12b in the second rotating part 12 moves to the right side RT, the interlocking part 20 connected to the second opening 12b moves to the right side RT.

[0057] When the interlocking part 20 moves to the right side RT, the first convex member 33 connected to the end of the left side LT in the first arm part 31 moves relatively to the left side LT with respect to the second interlocking part 22. The first convex member 33 moves within the first opening 22a included in the second interlocking part 22.

[0058] The second convex member 34 connected to the first arm portion 31 moves relatively to the left side LT with respect to the second interlocking portion 22. The second convex member 34 moves within the second opening 22b of the second interlocking portion 22. Since the end portion on the left side LT in the second opening 22b is curved toward the outdoor side FR, the second convex member 34 moves toward the outdoor side FR.

[0059] When the second convex member 34 moves to the outdoor side FR, the first arm portion 31 rotates with respect to the second interlocking portion 22 about the fourth rotation axis O4 as the rotation center. The first arm portion 31 rotates counterclockwise about the fourth rotation axis O4 in a plan view from the upper side UP shown in FIG. 2.

[0060] When the first arm portion 31 rotates about the fourth rotation axis O4 as the rotation center, the third opening 31c provided at the end portion on the right side RT of the first arm portion 31 moves to the outdoor side FR.

[0061] When the third opening 31c moves to the outdoor side FR, the first convex portion 32a connected to the third opening 31c moves to the outdoor side FR.

[0062] When the first convex portion 32a moves to the outdoor side FR, the second arm portion 32 rotates with respect to the regulating portion 40 about the sixth rotation axis O6 as the rotation center. The second arm portion 32 rotates clockwise about the sixth rotation axis O6 in a plan view from the upper side UP shown in FIG. 2.

[0063] When the second arm portion 32 rotates about the sixth rotation axis O6 as the rotation center, the second convex portion 32c provided at the end portion on the left side LT of the second arm portion 32 moves to the right side RT and the outdoor side FR.

[0064] Since the second convex portion 32c is provided in the long hole 51, when the second convex portion 32c moves to the outdoor side FR, the support portion 50 is pushed by the second convex portion 32c and moves to the outdoor side FR. The second convex portion 32c moves to the right side RT within the long hole 51.

[0065] As described above, in the opening / closing device 1 in the closed state shown in FIG. 2, when the rotating part 10 rotates by the driving part 60, the interlocking part 20 moves in the left-right direction H in conjunction with the rotation of the rotating part 10, and the arm part 30 moves to the outdoor side FR in conjunction with the movement of the interlocking part 20 in the left-right direction H. Further, the support part 50 is pushed by the arm part 30 and moves to the outdoor side FR, and the opening / closing device 1 becomes the allowable open state shown in FIG. 3. Since the support part 50 is fixed to the shoji of the side-sliding window where the opening / closing device 1 is provided, it does not move in the left-right direction H.

[0066] When the support part 50 moves to the outdoor side FR, the shoji to which the support part 50 is fixed moves to the outdoor side FR, and the side-sliding window where the opening / closing device 1 is provided opens.

[0067] In the opening / closing device 1 in the allowable open state, the contacted part 11s in the first rotating part 11 contacts the contact part 43 in the regulating part 40 in the left-right direction H. Since the rotation angle of the first rotating part 11 is regulated by the contact part 43, it does not rotate more than a predetermined angle.

[0068] Hereinafter, the rotation angle of the first rotating part 11 when the rotation stops due to the contact between the contacted part 11s and the contact part 43 is referred to as the predetermined opening angle. The first rotating part 11 shown in FIG. 3 is the first rotating part 11 when it rotates to the predetermined opening angle.

[0069] [[ID=!5]] The position of the second convex part 32c in the left-right direction H when the first rotating part 11 rotates to the predetermined opening angle is referred to as the predetermined opening position. That is, when the first rotating part 11 rotates to the predetermined opening angle, the second arm part 32 is located at the predetermined opening position.

[0070] When the second arm part 32 is located at the predetermined opening position, the second convex part 32c that the second arm part 32 has is located within the long hole 51 that the support part 50 has. When the second arm part 32 is located at the predetermined opening position, the tip of the second arm part 32 is attached to the support part 50.

[0071] A conventional window electric opening / closing device used for a horizontally-sliding window may cause a rotating part rotated by a geared motor to rotate by a predetermined angle or more due to, for example, construction errors of the horizontally-sliding window or variations in the output of the geared motor. In that case, when the window electric opening / closing device moves from a closed-state arrangement to an open-state arrangement, the arm part for opening the shoji may move to a position different from a predetermined position.

[0072] The rotating part 10 in the opening / closing device 1 according to the present embodiment comes into contact with the contact part 43 by rotating by a predetermined opening angle in the direction in which the shoji opens, and the rotation is restricted. The rotating part 10 that rotates in the direction in which the shoji opens does not rotate by more than the predetermined opening angle. When the rotating part 10 rotates to the predetermined opening angle, the arm part 30 is located at the predetermined opening position.

[0073] When the opening / closing device 1 moves from a closed-state arrangement to a permitted open-state arrangement, the rotating part 10 is held at the position rotated by the predetermined opening angle by the restricting part 40, so that the arm part 30 is held at the predetermined opening position. Therefore, the opening / closing device 1 can suppress the arm part 30 from moving to a position different from the predetermined position due to construction errors of the horizontally-sliding window or variations in the output of the geared motor.

[0074] As a result, it is possible to provide the opening / closing device 1 that suppresses the arm for opening and closing the shoji from moving to a position different from the predetermined position when opening the shoji.

[0075] The opening / closing device 1 can close the horizontally-sliding window provided with the opening / closing device 1 by rotating the rotating part 10 by the driving part 60 and moving from the permitted open-state arrangement to the closed-state arrangement.

[0076] The control part 70 can acquire the displacement amount per unit time of the current value in the geared motor included in the driving part 60. Hereinafter, the displacement amount per unit time of the current value in the geared motor included in the driving part 60 is referred to as the current displacement amount.

[0077] In the graphs shown in FIGS. 4 and 5, the horizontal axis indicates the elapsed time since the opening / closing device 1 was activated. In the graph shown in FIG. 4, the vertical axis indicates the current value in the geared motor included in the drive unit 60.

[0078] In the graph shown in FIG. 5, the vertical axis indicates the displacement amount per unit time of the current value in the geared motor included in the drive unit 60. The graph shown in FIG. 5 is a graph showing the displacement amount per unit time of the current value in the graph shown in FIG. 4, and for example, shows a value obtained by differentiating the current value shown in FIG. 4.

[0079] The control unit 70 acquires the current displacement amount in the geared motor included in the drive unit 60, and controls the drive unit 60 based on the current displacement amount in the geared motor. For example, the drive unit 60 has a detection unit (not shown) capable of detecting the current displacement amount in the geared motor.

[0080] The control unit 70 can acquire the current displacement amount detected by the detection unit in the drive unit 60. The control unit 70 may acquire the current value in the geared motor from the detection unit, and calculate the current displacement amount of the geared motor based on the acquired current value.

[0081] The control unit 70 determines whether or not the acquired current displacement amount has reached a threshold value. When the control unit 70 determines that the current displacement amount has reached the threshold value, the control unit 70 stops the driving of the geared motor included in the drive unit 60 and ends the opening / closing operation in the opening / closing device 1. The threshold value used by the control unit 70 is, for example, a predetermined value pre-stored in a storage unit or the like included in the control unit 70.

[0082] When the opening / closing device 1 moves from the closed state arrangement to the allowable open state arrangement, the contacted portion 11s in the first rotating portion 11 contacts the contacting portion 43 in the restricting portion 40. When the first rotating portion 11 contacts the restricting portion 40, the motor load in the geared motor included in the drive unit 60 increases, and the current value in the geared motor becomes large.

[0083] In the example shown in FIG. 4, the increase in the current value near the time when 8 seconds have elapsed since the opening / closing device 1 was activated indicates the increase in the current value due to the contact between the first rotating part 11 and the restricting part 40.

[0084] The current value in the geared motor included in the drive part 60 also increases due to the driving load when opening / closing the opening / closing device 1. The current value in the geared motor included in the drive part 60 also increases due to the load received by the shoji screen to which the support part 50 is fixed from the wind.

[0085] In the example shown in FIG. 4, the increase in the current value near the time when 1 second to 5 seconds have elapsed since the opening / closing device 1 was activated indicates the increase in the current value due to the driving load and the wind.

[0086] The control part 70 detects that the first rotating part 11 and the restricting part 40 have come into contact by comparing the amount of current displacement in the geared motor included in the drive part 60 with a threshold value. When the control part 70 detects that the first rotating part 11 and the restricting part 40 have come into contact, the control part 70 stops the geared motor included in the drive part 60 and ends the opening / closing operation in the opening / closing device 1.

[0087] As shown in FIG. 5, compared with the amount of current displacement caused by the driving load and the wind, the amount of current displacement caused by the contact between the first rotating part 11 and the restricting part 40 has a larger displacement amount per unit time. Therefore, by setting a threshold value using the amount of current displacement in the geared motor included in the drive part 60, the sensitivity for detecting that the first rotating part 11 and the restricting part 40 have come into contact can be improved.

[0088] When restricting the rotation angle of the first rotating part 11 by bringing the first rotating part 11 into contact with the restricting part 40, there is a possibility that components such as the restricting part 40 will be damaged by the output of the geared motor. The control part 70 can suppress the damage of components such as the restricting part 40 by performing highly sensitive detection using the amount of current displacement. Therefore, the required strength of components such as the restricting part 40 can be reduced, and the plate thickness of components such as the restricting part 40 can be made thinner. As a result, a space-saving design can be realized.

[0089] The opening / closing device 1 according to the first embodiment is an opening / closing device that opens and closes a shoji door that is attachably / detachably mounted to a frame body, and includes a support portion 50 provided on the shoji door, a rotating portion 10 rotatably provided on the frame body, an interlocking portion 20 that is movable in the left-right direction H in conjunction with the rotation of the rotating portion 10, and an arm portion 30 that can open and close the shoji door by moving the support portion 50 in the indoor / outdoor direction D in conjunction with the movement of the interlocking portion 20 in the left-right direction H, and a restricting portion 40 having a contact portion 43 that can contact the rotating portion 10.

[0090] The rotating portion 10 rotates by a predetermined angle in the opening direction when the shoji door opens, comes into contact with the contact portion 43, and the rotation is restricted. The arm portion 30 is held at a predetermined position during opening when the rotation of the rotating portion 10 is restricted by the contact portion 43.

[0091] The opening / closing device 1 includes a drive portion 60 having an electric motor that can rotate the rotating portion 10, and a control portion 70 that can control the electric motor included in the drive portion 60. The control portion 70 acquires the amount of current displacement in the electric motor included in the drive portion 60, and controls the geared motor based on the amount of current displacement.

[0092] The opening / closing device 1 can suppress damage to components such as the restricting portion 40 by detecting that the rotating portion 10 and the restricting portion 40 have come into contact with each other based on the amount of current displacement. As a result, a space-saving design can be realized.

[0093] (Second Embodiment) The opening / closing device 1A according to the second embodiment of the present disclosure will be described. In the following description, components that are common to those already described will be given the same reference numerals and redundant descriptions will be omitted.

[0094] The opening / closing device 1A includes a rotating portion 10, an interlocking portion 20, an arm portion 30, a restricting portion 40A, a support portion 50, a drive portion 60, and a control portion 70.

[0095] As shown in FIGS. 6 and 7, the restricting portion 40A is provided on the right side RT of the interlocking portion 20.

[0096] When the opening / closing device 1A moves from the closed state arrangement to the allowable open state arrangement, the driving unit 60 drives to rotate the rotating unit 10, and the interlocking unit 20 moves to the right side RT in conjunction with the rotation of the rotating unit 10.

[0097] When the interlocking unit 20 moves to the right side RT, the end of the right side RT in the first interlocking unit 21 contacts the contact portion 43A of the restricting unit 40A.

[0098] The contact portion 43A is the end of the left side LT in the restricting unit 40A. When the first interlocking unit 21 and the contact portion 43A contact in the left-right direction H, the movement of the interlocking unit 20 in the left-right direction H is restricted.

[0099] Hereinafter, the movement distance until the interlocking unit 20 moves from the closed state arrangement to the allowable open state arrangement and contacts the contact portion 43A is referred to as the predetermined opening distance. The interlocking unit 20 shown in FIG. 7 is the interlocking unit 20 when it has moved the predetermined opening distance.

[0100] The position in the left-right direction H of the second convex portion 32c when the interlocking unit 20 has moved the predetermined opening distance is referred to as the predetermined opening position. That is, when the interlocking unit 20 has moved the predetermined opening distance and contacts the contact portion 43A, the second arm portion 32 is located at the predetermined opening position. When the second arm portion 32 is located at the predetermined opening position, the tip of the second arm portion 32 is attached to the support portion 50.

[0101] The interlocking unit 20 in the opening / closing device 1A contacts the contact portion 43A by moving the predetermined opening distance in the direction in which the shoji opens, and the movement in the left-right direction H is restricted. In the opening / closing device 1A, the interlocking unit 20 that moves in the direction in which the shoji opens does not move more than the predetermined opening distance.

[0102] In the opening / closing device 1A illustrated in FIGS. 6 and 7, the interlocking unit 20 that moves in the direction in which the shoji opens indicates the interlocking unit 20 that moves to the right side RT.

[0103] The opening / closing device 1A according to the second embodiment is an opening / closing device that opens and closes a shoji door that is attachably / detachably mounted to a frame body, and includes a support portion 50 provided on the shoji door, a rotating portion 10 rotatably provided on the frame body, an interlocking portion 20 that is movable in the left-right direction H in conjunction with the rotation of the rotating portion 10, and an arm portion 30 that can open and close the shoji door by moving the support portion 50 in the indoor / outdoor direction D in conjunction with the movement of the interlocking portion 20 in the left-right direction H, and a restricting portion 40A having a contact portion 43A that can come into contact with the interlocking portion 20.

[0104] When the interlocking portion 20 moves a predetermined distance in the opening direction when the shoji door opens, it comes into contact with the contact portion 43A and the movement in the left-right direction H is restricted. The arm portion 30 is held at a predetermined position when opening by the movement of the interlocking portion 20 in the left-right direction H being restricted by the contact portion 43A.

[0105] As a result, the opening / closing device 1A can suppress the arm portion 30 from moving to a position different from the predetermined position due to construction errors of the horizontally sliding window or variations in the output of the geared motor.

[0106] As described above, each embodiment of the present disclosure has been described in detail with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes and the like within the scope not departing from the gist of the present disclosure are also included. The constituent elements shown in each of the above-described embodiments and the modification examples shown below can be configured by appropriately combining them.

[0107] In each of the above embodiments, the opening / closing devices 1 and 1A are provided on a horizontally sliding window and can open and close the horizontally sliding window. However, the modes of the opening / closing devices 1 and 1A are not limited to this. The opening / closing devices 1 and 1A may be provided on windows and doors other than the horizontally sliding window and may be configured to be able to open and close windows and doors other than the horizontally sliding window.

Description of Reference Numerals

[0108] 1, 1A... opening / closing device, 10... rotating part, 11... first rotating part, 12... second rotating part, 20... interlocking part, 21... first interlocking part, 22... second interlocking part, 30... arm part, 31... first arm part, 32... second arm part, 40, 40A... restricting part, 43, 43A... contact part, 50... supporting part, 51... long hole, 51a... first hole part, 51b... second hole part, 60... driving part, 70... control part, V... vertical direction, UP... upper side, LO... lower side, H... horizontal direction, RT... right side, LT... left side, D... indoor / outdoor direction, FR... outdoor side, RR... indoor side, O1... first rotation axis, O2... second rotation axis, O3... third rotation axis, O4... fourth rotation axis, O5... fifth rotation axis, O6... sixth rotation axis

Claims

1. An opening and closing device for opening and closing a shoji door that is attachably and detachably mounted on a frame body, a support portion provided on the shoji door, a rotating portion rotatably provided on the frame body, a linkage portion movable in the left - right direction in conjunction with the rotation of the rotating portion, an arm portion capable of opening and closing the shoji door by moving the support portion in the indoor - outdoor direction in conjunction with the movement of the linkage portion in the left - right direction, a regulating portion having a contact portion capable of contacting the rotating portion or the linkage portion, comprising: the arm portion is held at a predetermined position when the rotation of the rotating portion or the movement of the linkage portion is restricted by the contact portion, an opening and closing device.

2. The rotating portion rotates by a predetermined opening angle in the direction in which the shoji door opens, contacts the contact portion, and the rotation is restricted, The opening and closing device according to claim 1.

3. The contact portion contacts the rotating portion in the left - right direction when the rotating portion rotates by the predetermined opening angle, The opening and closing device according to claim 2.

4. The linkage portion moves by a predetermined opening distance in the direction in which the shoji door opens, contacts the contact portion, and the movement is restricted, The opening and closing device according to claim 1.

5. The contact portion contacts the linkage portion in the left - right direction when the linkage portion moves by the predetermined opening distance, The opening and closing device according to claim 4.

6. When the arm portion is located at the predetermined position at the time of opening, the tip of the arm portion is attached to the support portion, The opening and closing device according to claim 1.

7. an electric motor capable of rotating the rotating portion, a control portion capable of controlling the electric motor, further comprising: the control portion acquires the displacement amount per unit time of the current value in the electric motor and controls the electric motor based on the displacement amount, The opening and closing device according to any one of claims 1 to 6.

8. The control portion stops the electric motor when the displacement amount reaches a predetermined value, The opening and closing device according to claim 7.

9. A control method for an opening and closing device provided on a frame body and a shoji door that is attachably and detachably mounted on the frame body, and opening and closing the shoji door by an arm portion that moves in conjunction with the rotation of a rotating portion rotated by an electric motor, controlling the electric motor based on the displacement amount per unit time of the current value of the electric motor, a control method for an opening and closing device.

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