JP2015081459A - Window opening-closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce impact generated when a large force acts on a sash in wind time.SOLUTION: A shock absorber 13 is connected to the sash 5, and is provided for transmitting an opening-closing force to the sash 5 and making force in the direction for preventing displacement act on the sash 5 when the sash 5 is displaced in the direction for closing window opening. Thus, the sash 5 and the shock absorber 13 always become a connected constitution, and are constituted for transmitting the opening-closing force to the sash 5 via the shock absorber 13. That is, the shock absorber 13 bears a transmission mechanism for transmitting the opening-closing force to the sash 5. The shock absorber 13 always becomes a state capable of making damping force act on the sash 5. Thus, even if the large force acts on the sash 5 in strong wind time, since the damping force starts to act on the sash 5 simultaneously when the sash 5 starts to be displaced, an impact force can be reduced.

Description

  The present invention relates to a window opening / closing device.

  For example, the window opening and closing device of the type shown in Patent Document 1 is provided with a shock absorber that prevents the shoji and the window frame from strongly colliding when the shoji is closed. A typical configuration of the shock absorber includes a spring such as a torsion coil spring, and an arm that elastically deforms the spring by receiving a pressing force from the shoji when in contact with the shoji.

JP 2003-247371 A

  However, the arm of the shock absorber is not always in contact with the shoji. That is, when the angle between the shoji and the window frame (hereinafter also referred to as opening) is equal to or less than a predetermined angle set in advance, the shoji and the arm come into contact, but the opening is larger than the predetermined angle. The arm does not touch the shoji.

  When a large force acts on the shoji during strong winds, the shoji collides with the arm at a high speed, so when the shock absorber starts to operate, that is, when the arm contacts the shoji, End up.

  In view of the above points, an object of the present invention is to reduce an impact generated when a large force is applied to a shoji screen in a strong wind.

  In order to achieve the above object, the present invention provides a window frame (3) that borders the window opening (1A), and a state in which the window opening (1A) is closed and a state in which the window opening (1A) is opened. Displaceable shoji (5), power unit (9) that generates an opening / closing force that displaces shoji (5) relative to window frame (3), and shoji (5) connected to shoji (5) When the shoji (5) is displaced in a direction to close the window opening (1A), a shock absorber that acts on the shoji (5) in a direction that prevents the displacement (hereinafter also referred to as a damping force) is transmitted to the shoji (5). (13).

  Accordingly, in the present invention, the shoji (5) and the shock absorber (13) are always connected to each other, and the opening / closing force is transmitted to the shoji (5) via the shock absorber (13). That is, the shock absorber (13) according to the present invention serves as a transmission mechanism that transmits the opening / closing force to the shoji (5).

  And in this invention, a buffer (13) will be in the state which can always make a damping force act on a shoji (5). For this reason, even when a large force is applied to the shoji (5) during a strong wind or the like, since the shoji (5) starts to be displaced and a damping force starts to act on the shoji (5), the impact force is reduced. it can.

  Conventionally, the shock absorber (13) and the transmission mechanism are provided separately, and the shock absorber (13) does not have a function of transmitting the opening / closing force to the shoji. On the other hand, in the present invention, the shock absorber (13) serves as a transmission mechanism that transmits the opening / closing force to the shoji (5), so that the shock absorber (13) and the transmission mechanism are provided separately. As compared with the opening / closing device, the window opening / closing device can have a simple structure.

As described above, according to the present invention, the structure of the window opening and closing device can be simplified while reducing the impact generated when a large force is applied to the shoji during strong winds.
Incidentally, the reference numerals in parentheses for each of the above means are examples showing the correspondence with the specific means described in the embodiments described later, and the present invention is indicated by the reference numerals in the parentheses of the above respective means. It is not limited to specific means.

It is a front view of the window opening and closing apparatus concerning a 1st embodiment of the present invention. It is sectional drawing which shows the closed state of the window opening / closing apparatus which concerns on 1st Embodiment of this invention. It is sectional drawing which shows the ventilation state of the window opening / closing apparatus which concerns on 1st Embodiment of this invention. It is sectional drawing which shows the smoke emission state of the window opening and closing apparatus which concerns on 1st Embodiment of this invention. (A) is a perspective view which shows the ventilation state of the window opening / closing apparatus which concerns on 1st Embodiment of this invention. (B) is a perspective view which shows the state which the strong wind acted on the shoji 5 at the time of the ventilation state of the window opening / closing apparatus which concerns on 1st Embodiment of this invention. It is sectional drawing which shows the closed state of the window opening / closing apparatus which concerns on 2nd Embodiment of this invention. It is sectional drawing which shows the ventilation state of the window opening / closing apparatus which concerns on 2nd Embodiment of this invention. It is sectional drawing which shows the smoke emission state of the window opening and closing apparatus which concerns on 2nd Embodiment of this invention. It is sectional drawing of the buffer 13 used for the window opening / closing apparatus which concerns on 3rd Embodiment of this invention.

  The “embodiment of the invention” described below shows an example of the embodiment. In other words, the invention specific items described in the claims are not limited to the specific means and structures shown in the following embodiments.

  In the present embodiment, the present invention is applied to a window opening / closing device for a smoke exhaust window. The arrows and the like indicating the directions given to the drawings are described for easy understanding of the relationship between the drawings. The present invention is not limited to the directions given in the drawings.

  At least one member or part described with at least a reference numeral is provided, except where “plurality”, “two or more”, and the like are omitted. Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(First embodiment)
1. Schematic Configuration of Window Opening / Closing Device A smoke exhaust window 1 shown in FIG. 1 has a window frame 3 and a shoji 5. The window frame 3 is a frame that borders a window opening 1A provided on the wall of a building (not shown) such as an outer wall. Incidentally, since the window opening 1A according to the present embodiment is rectangular, the window frame 3 is also formed in a rectangular frame shape.

  The window frame 3 is made of a light metal such as an aluminum alloy. The window frame 3 has a pair of vertical frame portions 3A and a pair of horizontal frame portions 3B. The pair of vertical frame portions 3A are positioned on both sides in the horizontal direction with the shoji 5 interposed therebetween. The pair of horizontal frame portions 3B are located on both sides in the vertical direction with the shoji 5 interposed therebetween.

  The shoji 5 has a rectangular frame-shaped frame portion 5C. A plate-like member such as a glass plate or a metal plate is fitted in the frame portion 5C. The frame portion 5C is made of a light metal such as an aluminum alloy. The shoji 5 can be displaced with respect to the window frame 3.

  That is, the shoji 5 can be displaced between a state in which the window opening 1A is closed (see FIG. 2) and a state in which the window opening 1A is opened (see FIGS. 3 and 4). The shoji 5 is assembled so as to be swingable with respect to the window frame 3 via a pair of swing shafts 5A shown in FIG. That is, the shoji 5 according to the present embodiment can swing between the closed state and the open state.

  Each swing shaft 5A is assembled to each vertical frame portion 3A, and its swing center axis L1 is parallel to the horizontal direction. Each swing shaft 5 </ b> A is provided on the upper end side of the shoji 5. For this reason, when the window opening 1 </ b> A is opened, the lower end of the shoji 5 is displaced outward from the window frame 3 as shown in FIG. 3.

  When the window opening 1A is closed, as shown in FIG. 2, the shoji 5 is substantially parallel to the vertical frame portion 3A and at least a part of the shoji 5 is housed in the window frame 3. . The shoji 5 is provided with a weight portion 5B. The weight part 5B displaces the shoji 5 to the opened state side using gravity.

  For this reason, the weight part 5 </ b> B is provided at a position shifted in the displacement direction of the shoji 5 with respect to the shoji 5. The displacement direction of the shoji 5 refers to a position shifted with respect to the shoji 5 in the closed state. In the present embodiment, the position of the swing center axis L1, that is, the position of the swing shaft 5A is set above the center of the longitudinal dimension of the vertical frame portion 3A.

  For this reason, the shoji 5 itself is oscillated and displaced in a direction to close the window opening 1A by gravity acting on the frame portion 5C and the plate-like member fitted in the frame portion 5C. On the other hand, the weight part 5B is provided on the upper end side of the shoji 5 at a position shifted to the indoor side with respect to the shoji 5 in the closed state. Therefore, the gravity acting on the weight 5B causes the shoji 5 to have a moment in a direction to open the window opening 1A.

2. Opening and closing mechanism The opening and closing mechanism 7 forcibly opens and closes the shoji 5. The opening / closing mechanism 7 includes a power unit 9 and a transmission mechanism 11 as shown in FIG. The power unit 9 generates an opening / closing force that displaces the shoji 5 with respect to the window frame 3.

  The power unit 9 according to the present embodiment generates an opening / closing force by an electric motor (not shown). The operation panel 9A includes a first operation unit 9B to a third operation unit 9D for instructing operation of the power unit 9, that is, rotation and stop of the electric motor. Details of the operation panel 9A will be described later.

  The transmission mechanism 11 forcibly opens / closes the shoji 5 by transmitting the opening / closing force (rotational force in this embodiment) generated by the power unit 9 to the shoji 5. Specifically, the transmission mechanism 11 includes a shock absorber 13 and an action unit 15. The action unit 15 applies an opening / closing force to the shock absorber 13.

  That is, the action part 15 has shafts 15A to 15D, a turning unit 15E, and the like. The shafts 15 </ b> A to 15 </ b> D are rotated by receiving the rotational force generated by the power unit 9. The turning unit 15E turns the direction of the rotational force transmitted by the shafts 15A to 15C.

Note that the turning unit 15E according to the present embodiment includes a gear mechanism that has a bevel gear, a face gear, a helical gear, a worm, or the like and turns the direction of the rotational force.
As shown in FIG. 2, the shaft 15D extending in parallel with the vertical frame portion 3A has one end in the longitudinal direction connected to the screw shaft 15F. The screw shaft 15F is a male screw shaft having a male screw formed on the outer periphery. A movable nut 15G formed with a female screw that meshes with the male screw is fitted into the screw shaft 15F.

  The shock absorber 13 includes a cylinder 13A, a rod 13B, and a spring 13C. The cylinder 13A is a cylindrical member that is closed at one end and opened at the other end. The rod 13B is a rod-like member that is housed in the cylinder 13A so as to be able to protrude and retract from the open end side of the cylinder 13A.

  A hook-like stopper portion (not shown) is provided at a portion located in the cylinder 13A in the longitudinal end portion of the rod 13B to prevent the entire rod 13B from coming out of the cylinder 13A. On the open end side in the cylinder 13A, a stoppered portion (not shown) that is hooked and engaged with the stopper portion is provided.

  The spring 13C is an elastic body disposed between the closed end side of the cylinder 13A and the rod 13B, and is housed in a state of being compressed and deformed with respect to the natural length. For this reason, the spring 13C always acts on the rod 13B with an elastic force that pushes the rod 13B out of the cylinder 13A.

  One end side of the shock absorber 13 in the longitudinal direction (in this embodiment, the closed end side of the cylinder 13A) A is connected to the shoji 5 so as to be swingable. The other end side in the longitudinal direction of the shock absorber 13 (in the present embodiment, the other end side in the longitudinal direction of the rod 13B) B is slidably connected to the movable nut 15G.

  As shown in FIGS. 2 to 4, the connecting portion A between the shock absorber 13 and the shoji 5 always swings from the connecting portion B between the shock absorber 13 and the movable nut 15 </ b> G regardless of the position of the shoji 5. It is located on the shaft 5A side (the upper side in this embodiment).

  Since the movable nut 15G is connected to the shock absorber 13, the movable nut 15G cannot rotate around the screw shaft 15F. For this reason, when the screw shaft 15F rotates, the movable nut 15G does not rotate but is parallel to the longitudinal direction (vertical direction in the present embodiment) of the screw shaft 15F in proportion to the rotation angle of the screw shaft 15F. Moving.

3. Operation of Window Opening / Closing Mechanism The power unit 9 according to this embodiment generates a rotational force by an electric motor. The operation panel 9A illustrated in FIG. 1 includes a first operation unit 9B to a third operation unit 9D that are operated by an operator or the like. The first operation unit 9B to the third operation unit 9D are operated by an operator or the like when instructing the operation of the power unit 9, that is, rotation and stop of the electric motor.

  When the electric motor rotates, the rotational force is transmitted to the screw shaft 15F via the transmission mechanism 11. For this reason, the movable nut 15G translates in either direction according to the direction of rotation of the screw shaft 15F.

<Closed state>
When the first operation portion 9B is operated when the window opening 1A is open (for example, the state in which the shoji 5 is shown in FIG. 4), the electric motor rotates and the movable nut 15G is separated from the swing shaft 5A. Move in parallel (hereinafter also referred to as downward).

  As a result, the connecting portion B moves away from the connecting portion A, so that the rod 13B comes out of the cylinder 13A as shown by the solid line in FIG. 3, and the full length of the shock absorber 13 (from the connecting portion A to the connecting portion). The length up to B) expands.

  When the movable nut 15G is further translated downward and the stopper portion of the rod 13B and the stopper portion of the cylinder 13A are engaged, the expansion of the shock absorber 13 is stopped. When the movable nut 15G further translates downward while the expansion of the shock absorber 13 is stopped, the shoji 5 moves in a direction to close the window opening 1A in conjunction with the downward displacement of the movable nut 15G, as shown in FIG. Displace.

  That is, at least in a state where the expansion of the shock absorber 13 is stopped, the shock absorber 13 applies a force (hereinafter, also referred to as an opening / closing force) to displace the shoji 5 generated by the power unit 9 relative to the window frame 3 to the shoji 5. introduce. When the movable nut 15G is displaced downward, a force in the direction of closing the window opening 1A among the opening / closing force is transmitted to the shoji 5 via the shock absorber 13.

  Note that the friction force generated at the portion where the rod 13B and the cylinder 13A rub against each other (also referred to as sliding contact) before the expansion of the shock absorber 13 stops, that is, before the stopper portion and the stopper portion are engaged. Thus, the opening / closing force is transmitted to the shoji 5. For this reason, the shoji 5 is displaced by the frictional force even before the expansion of the shock absorber 13 is stopped.

  When the window opening 1A is closed by the shoji 5, the closed state in which the shoji 5 is restricted from being displaced with respect to the window frame 3 by a lock mechanism (not shown) is maintained, and the electric motor stops. The electric motor is stopped by any of the following methods.

  That is, (a) when a first predetermined time elapses from when the first operating unit 9B is operated to start energization of the electric motor, (b) the value of the current flowing through the electric motor is determined in advance. When the predetermined current value is exceeded, (c) the energization of the electric motor is stopped when it is detected by the detection unit (not shown) that the window opening 1A is closed.

<Ventilation state>
When the second opening 9C is operated when the window opening 1A is closed, that is, when the shoji 5 is in the state shown in FIG. 2, the electric motor rotates and the movable nut 15G is shown in the solid line and FIG. As shown in FIG. 5 (a), it moves in parallel in a direction close to the swing shaft 5A (hereinafter also referred to as upward).

  When the movable nut 15G moves upward, a pressing force that presses the connecting portion B toward the connecting portion A side (the shoji 5 side) acts on the rod 13B. The rod 13 is submerged in the cylinder 13A by the pressing force, and the spring 13C is compressed and deformed. Incidentally, the force that compresses and deforms the spring 13 </ b> C is a force that the gravity acting on the shoji 5 acts on the shock absorber 13 (hereinafter also referred to as a closing force).

  Note that the moment due to gravity acting on the weight portion 5B causes the moment in the direction of opening the window opening 1A to act on the shoji 5, so that the moment is reduced so as to cancel the closing force. For this reason, in this embodiment, the shoji 5 swings and displaces in the direction of opening the window opening 1A in accordance with the upward displacement of the movable nut 15G without the spring 13C being greatly compressed and deformed.

  That is, when the movable nut 15 </ b> G is displaced upward, a force for opening the window opening 1 </ b> A among the opening / closing force is transmitted to the shoji 5 through the shock absorber 13. In the ventilation state, the movable nut 15G stops in a state where the spring 13C can be further compressed and deformed.

  Therefore, when a large force acts on the shoji 5 due to a strong wind or the like and the closing force increases, the spring 13C is further compressed and deformed, as shown by the two-dot chain line in FIG. 3 and FIG. 5B. The rod 13B is immersed in the cylinder 13A, and the shoji 5 is displaced in the direction in which the window opening 1A is closed.

  At this time, since the movable nut 15G remains stopped, when the spring 13C is further compressed and deformed, the shock absorber 13 acts on the shoji 5 with a force in a direction that prevents the shoji 5 from being displaced (hereinafter also referred to as a damping force). Let

  When the second operation unit 9C is operated in the smoke exhaust state shown in FIG. 4, the movable nut 15G is displaced downward to enter the ventilation state. That is, in the smoke exhaust state, the movable nut 15G is positioned between the smoke exhaust state and the closed state.

<Smoke emission state>
When the third operating portion 9D is operated when the window opening 1A is closed or in a ventilated state, the electric motor rotates and the movable nut 15G is more than in the ventilated state as shown in FIG. Also moves to the position on the swing shaft 5A side (upper side). As a result, the opening / closing force generated in the power unit 9 is transmitted to the shoji 5 via the shock absorber 13.

  In the smoke exhausted state, the rod 13B is immersed in the cylinder 13A until the rod 13B cannot be displaced with respect to the cylinder 13A. For this reason, in the smoke exhausting state, the shock absorber 13 is like a link rod whose total length does not change, so the position of the shoji 5 is held at the position shown in FIG. Therefore, even if a strong wind or the like acts on the shoji 5, the shoji 5 is restricted from being displaced in the direction of closing the window opening 1A.

  In the present embodiment, a detection unit (not shown) for detecting the position of the shoji 5 is provided. Whether the shoji 5 is located in the closed state, the ventilation state, or the smoke emission state is determined using a signal from the detection unit.

3. Features of the Window Opening / Closing Device According to the Present Embodiment In this embodiment, the shoji 5 and the shock absorber 13 are always connected, and the opening / closing force is transmitted to the shoji 5 via the shock absorber 13. That is, the shock absorber 13 according to the present embodiment serves as a transmission mechanism that transmits the opening / closing force to the shoji 5.

  In the present embodiment, the shock absorber 13 is always in a state in which a damping force can be applied to the shoji 5. For this reason, even when a large force is applied to the shoji 5 during a strong wind or the like, a damping force starts to act on the shoji 5 at the same time as the shoji 5 starts to be displaced, so that the impact force can be reduced.

  In the present embodiment, the shock absorber 13 bears a transmission mechanism that transmits the opening / closing force to the shoji 5, so that it is simpler than a conventional smoke exhaust window in which the shock absorber 13 and the transmission mechanism are provided separately. It can be a structure.

(Second Embodiment)
The smoke exhaust window 1 according to the first embodiment is a system in which the shoji 5 swings with respect to the window frame 3, but in the present embodiment, the present invention is applied to a so-called “sliding window”. The “sliding window” is a window device in which the swing shaft 5 </ b> A of the shoji 5 is displaced with respect to the window frame 3 as shown in FIGS. 7 and 8, for example.

  Hereinafter, only the part different from the smoke exhaust window and the window opening and closing device according to the first embodiment will be described. In addition, the code | symbol same as 1st Embodiment is attached | subjected to the site | part specified by the same definition as the window opening and closing apparatus etc. which concern on 1st Embodiment.

1. Configuration of Window Opening and Closing Device As shown in FIG. 6, the swing shaft 5A is provided on one end side in the longitudinal direction of the first arm 4A coupled to the window frame 3 and can swing on the frame portion 5C of the shoji 5 It is connected to. The other end side of the first arm 4A in the longitudinal direction is connected to the window frame 3 or its periphery (hereinafter also referred to as the window frame 3 or the like) so as to be swingable.

  As shown in FIG. 7, one end side of the second arm 4 </ b> B in the longitudinal direction is connected to the frame portion 5 </ b> C of the shoji 5 so as to be swingable. The other end side in the longitudinal direction of the second arm 4B is connected to the window frame 3 or its periphery so as to be swingable.

  The connecting portion between the second arm 4B and the frame portion 5C is a position displaced at least in the vertical direction from the connecting portion between the first arm 4A and the swing shaft 5A. The connecting portion D between the second arm 4B and the window frame 3 or the like is a position shifted at least in the vertical direction from the connecting portion C between the first arm 4A and the window frame 3 or the like.

  One end of the third arm 4C in the longitudinal direction is coupled to the middle portion in the longitudinal direction of the second arm 4B so as to be swingable. The other end in the longitudinal direction of the third arm 4C is connected to the window frame 3 or its periphery so as to be swingable. Incidentally, the weight part 5B is not provided in this embodiment, and the weight of the shoji 5 is used. However, the weight portion 5B may be provided as in the first embodiment.

  The connecting portion C between the first arm 4A and the window frame 3 and the like, and the connecting portion D between the second arm 4B and the window frame 3 and the like are connected to the screw shaft 15F while maintaining the distance between the connecting portions C and D. It can be displaced in a parallel direction (vertical direction in this embodiment). The position of the connecting portion D between the second arm 4B and the window frame 3 or the like does not move with respect to the window frame 3 or the like.

  In the present embodiment, as will be described later, when the shoji 5 is displaced in the direction to open the window opening 1A, the movable nut 15G is displaced downward. When the shoji 5 is displaced in the direction to close the window opening 1A, the movable nut 15G is displaced upward. For this reason, the connection part A between the shock absorber 13 and the shoji 5 is provided below the connection part B between the shock absorber 13 and the movable nut 15G.

2. Operation of window opening and closing device <Closed state>
When the first operation portion 9B is operated when the window opening 1A is in an open state (for example, the state in which the shoji 5 is shown in FIG. 8), the electric motor rotates and the movable nut 15G moves upward. Thereby, the shoji 5 is displaced to the state shown in FIG. 6 through the state shown by the solid line in FIG. That is, when the first operation unit 9B is operated, the shoji 5 is displaced in a direction to close the window opening 1A.

  In the smoke exhaust state shown in FIG. 8, the rod 13B cannot be displaced with respect to the cylinder 13A. For this reason, when the movable nut 15G moves upward from the smoke exhausted state, the rod 13B comes out of the cylinder 13A until the state generally indicated by the solid line in FIG. In the process of extending the entire length of the shock absorber 13, the opening / closing force is transmitted to the shoji 5 by the frictional force generated at the sliding contact portion between the rod 13 </ b> B and the cylinder 13 </ b> A.

  When the movable nut 15G further translates upward and the stopper portion of the rod 13B engages with the stopper portion of the cylinder 13A, the expansion of the shock absorber 13 stops. When the movable nut 15G is further translated upward in a state where the expansion of the shock absorber 13 is stopped, the shoji 5 is displaced so as to close the window opening 1A in conjunction with the upward displacement of the movable nut 15G as shown in FIG. To do.

<Ventilation state>
When the second operating portion 9C is operated while the window opening 1A is closed, the electric motor rotates and the movable nut 15G moves downward. As a result, as shown in FIG. 7, the first arm 4A and the shoji 5 are connected by the gravity acting on the weight portion 5B and the shoji 5, that is, the swing shaft 5A moves downward. 4A swings outward, and a moment in the direction of opening the window opening 1A acts on the shoji 5.

  For this reason, the shoji 5 is displaced in the direction in which the window opening 1A is opened, and the shock absorber 13 is in a state in which the rod 13B extends from the cylinder 13A. When a large force acts on the shoji 5 due to a strong wind or the like and the closing force becomes large, the spring 13C is further compressed and deformed, and the rod 13B is placed in the cylinder 13A as shown by a two-dot chain line in FIG. The shoji 5 is displaced in the direction in which the window opening 1A is closed.

  At this time, since the movable nut 15G remains stopped, if the spring 13C is further compressed and deformed, the shock absorber 13 applies a force in a direction that prevents the displacement of the shoji 5, that is, a damping force, to the shoji 5. Thereby, even if it is a time when big force acts on the shoji 5 at the time of a strong wind, impact force can be reduced.

When the second operation unit 9C is operated in the smoke emission state shown in FIG. 8, the movable nut 15G is displaced upward to enter the ventilation state.
<Smoke emission state>
When the third operating portion 9D is operated when the window opening 1A is closed or in a ventilated state, the electric motor rotates and the movable nut 15G is more than in the ventilated state as shown in FIG. Also translates to a lower position. As a result, the opening / closing force generated in the power unit 9 is transmitted to the shoji 5 via the shock absorber 13.

  In the smoke exhausted state, the rod 13B is immersed in the cylinder 13A until the rod 13B cannot be displaced with respect to the cylinder 13A. For this reason, in the smoke exhausting state, the shock absorber 13 looks like a link rod whose entire length does not change, and therefore the position of the shoji 5 is held at the position shown in FIG. Therefore, even if a strong wind or the like acts on the shoji 5, the shoji 5 is restricted from being displaced in the direction of closing the window opening 1A.

(Third embodiment)
As shown in FIG. 9, the shock absorber 13 according to the present embodiment is a viscous damper having a container 13 </ b> A in which a viscous fluid is enclosed, and a movable member 13 </ b> B that moves in the container 13 </ b> A in conjunction with the displacement of the shoji 5. It is composed.

  In the present embodiment, a cylindrical cylinder 13A is used as the container 13A as in the above-described embodiment, and a rod 13B similar to that in the above-described embodiment is used as the movable member 13B. It is not limited.

For example, the shock absorber 13 may be configured by a rotary viscous damper in which the container 13A has a cup shape and the movable member 13B has a vane shape that rotates within the cup-shaped container 13A.
(Other embodiments)
Although the power unit 9 according to the embodiment of the above-described embodiment uses an electric motor, the present embodiment is not limited to this, and the power unit 9 generates power with a manual handle such as a handle box. It may be.

  The shoji 5 according to the above-described embodiment has a swing center axis L1 extending in the horizontal direction and swings with respect to the window frame 3, but the present invention is not limited to this. For example, the shoji 5 having the swinging central axis L <b> 1 extending in the vertical direction, or a method in which the shoji 5 is translated with respect to the window frame 3 may be used.

  The transmission mechanism 11 according to the above-described embodiment is configured to include the plurality of shafts 15A to 15D, the turning unit 15E, and the like, but the present invention is not limited to this, and for example, the shafts 15A to 15D. Instead of this, a configuration using a geared cable or a configuration using a normal cable may be used.

  In the above-described embodiment, the ventilation state and the smoke emission state are set as the state in which the window opening 1A is open. However, the present invention is not limited to this, for example, among the ventilation state and the smoke emission state. It may be a window opening / closing device in which one of the states is in a state in which the window opening 1A is opened.

  In the above-described embodiment, the detection unit for detecting the position of the shoji 5 is provided. However, the present invention is not limited to this. For example, when the ventilation state and the smoke emission state are set, the detection unit is closed once. When the current value flowing through the electric motor exceeds a predetermined current value in advance, the rotation of the electric motor may be reversed to enter the ventilation state or the smoke exhaustion state.

  In the above-described embodiment, one window opening / closing device is operated by one power unit 9, but the present invention is not limited to this, and a plurality of window opening / closing by one power unit 9. The device may be operated in conjunction.

The shock absorber 13 according to the present invention is not limited to the shock absorber 13 shown in the above embodiment.
In the above-described embodiment, the members made of light metal such as the window frame 3 and the frame portion 5C are made of aluminum. However, the present invention is not limited to this. For example, the frame 3 is made of resin or resin. You may comprise with a composite material with a light metal.

  Further, the present invention is not limited to the above-described embodiment as long as it matches the gist of the invention described in the claims. Therefore, even if it is the form which combined either of the 1st-3rd embodiment.

DESCRIPTION OF SYMBOLS 1 ... Smoke exhaust window 1A ... Window opening 3 ... Window frame 3A ... Vertical frame part 3B ... Horizontal frame part 4A ... 1st arm 4B ... 2nd arm 4C ... 3rd arm 5 ... Shoji 5A ... Swing shaft 5C ... Frame part 5B ... Weight part 7 ... Opening / closing mechanism 9 ... Power part 9A ... Operation panel 11 ... Transmission mechanism 13 ... Shock absorber 15F ... Screw shaft 15G ... Movable nut

Claims (4)

A window frame that borders the window opening;
A shoji that is displaced between a state in which the window opening is closed and a state in which the window opening is opened,
A power unit that generates an opening and closing force that displaces the shoji with respect to the window frame;
A shock absorber coupled to the shoji to transmit the opening / closing force to the shoji, and when the shoji is displaced in a direction to close the window opening, a shock absorber that acts on the shoji in a direction to prevent the displacement. A window opening and closing device characterized by that.   2. The window opening and closing device according to claim 1, wherein the shock absorber is a viscous damper having a container in which a viscous fluid is sealed, and a movable member that displaces the container in conjunction with the displacement of the shoji. .   The window opening and closing device according to claim 1, wherein the shock absorber has a spring that exerts an elastic force in a direction to open the shoji. A male screw part that rotates by receiving rotational power generated in the power part, and a nut having a female screw part that meshes with the male screw part,
The shock absorber has a cylindrical cylinder and a rod accommodated in the cylinder so as to be displaceable.
One end in the longitudinal direction of the shock absorber is swingably connected to the shoji, and the other end in the longitudinal direction of the shock absorber is swingably connected to the nut. Item 4. The window opening and closing device according to any one of Items 1 to 3.

Images