JP2020133280A - Opening/closing window - Google Patents

Abstract

To provide an opening/closing window capable of improving workability of a release work.SOLUTION: An opening/closing window 1 includes: a frame body 3 that trims a window opening 1A; a sash 5 which is oscillated and displaced between a state where the window opening 1A is closed and a state where the window opening 1A is opened; a state holding mechanism 7 for holding the state where the sash 5 is opened to a first state or a second state where the sash 5 is opened larger than the first state; and an operation part 9 which is operated when the first state is released and is arranged on the front side of the sash 5. Thereby, the opening/closing window 1 can improve workability of the release work because the operation part 9 is positioned on the front side of the sash 5.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to open / close windows.

For example, the opening / closing window described in Patent Document 1 can hold the open state of the shoji in the first state or the second state. The second state is a state in which the shoji is tilted and opened more than the first state. In the invention described in the document, the user can release the first state by sliding-displace the movable stopper.

Japanese Patent No. 4813989

In the invention described in Patent Document 1, the movable stopper is provided on the side surface of the shoji. Therefore, the user has no choice but to slide and displace the movable stopper from the side surface of the shoji. Therefore, if there is not enough space for operation on the side surface side, there is a difficulty in the workability of the release work in the first state.

In view of the above points, the present disclosure discloses an example of an opening / closing window capable of improving the workability of the releasing work.

The opening / closing window preferably includes, for example, at least one of the following constituent requirements. That is, the constituent requirement is the frame (3) that borders the window opening (1A), and the shoji that swings and displaces between the state where the window opening (1A) is closed and the state where the window opening (1A) is opened. (5), a state holding mechanism (7) for holding the open state of the shoji (5) in the first state or a second state opened wider than the first state, and when releasing the first state. It is an operation unit (9) operated by the above, and is an operation unit (9) arranged on the front side of the shoji (5).

As a result, in the opening / closing window, the operation unit (9) is located on the front side of the shoji (5), so that it is possible to improve the workability of the release work.
Incidentally, the reference numerals in the parentheses are examples showing the correspondence with the specific configurations and the like described in the embodiments described later, and the present disclosure is limited to the specific configurations and the like shown in the symbols in the parentheses. It's not something.

It is a figure which shows the opening and closing window which concerns on 1st Embodiment. It is a figure which shows the opening and closing window which concerns on 1st Embodiment. It is a figure which shows the opening and closing window which concerns on 1st Embodiment. It is a figure which shows the state holding mechanism which concerns on 1st Embodiment. It is a figure which shows the state holding mechanism which concerns on 1st Embodiment. It is an exploded view of the state holding mechanism which concerns on 1st Embodiment. It is a figure which shows the operation part which concerns on 1st Embodiment. It is a figure which shows the state holding mechanism which concerns on 2nd Embodiment. It is a figure which shows the state holding mechanism which concerns on 2nd Embodiment. It is a figure which shows the state holding mechanism which concerns on 2nd Embodiment. It is a figure which shows the state holding mechanism which concerns on 2nd Embodiment. It is an exploded view of the state holding mechanism which concerns on 2nd Embodiment. It is a figure which shows the state holding mechanism which concerns on 3rd Embodiment.

The following "invention embodiment" shows an example of an embodiment belonging to the technical scope of the present disclosure. That is, the matters specifying the invention described in the claims are not limited to the specific configuration, structure, etc. shown in the following embodiments.

The arrows, diagonal lines, and the like indicating the directions attached to each figure are described in order to make it easier to understand the relationship between each figure and the shape of each member or part. Therefore, the invention presented in the present disclosure is not limited to the directions given in each figure.

At least one member or part described with a reference numeral is provided unless otherwise specified such as "one". That is, if there is no notice such as "one", two or more of the members may be provided. The present disclosure includes at least components such as members or parts described with reference numerals.

(First Embodiment)
1. 1. Outline of the opening / closing window In the present embodiment, an example of the opening / closing window according to the present disclosure is applied to an inwardly falling window in which the shoji falls toward the room. As shown in FIG. 1, the opening / closing window 1 according to the present embodiment includes at least a frame body 3, a shoji screen 5, a state holding mechanism 7, an operation unit 9, and the like.

The frame body 3 is a member that borders the window opening 1A. The frame body 3 according to the present embodiment is composed of a rectangular frame made of a light metal such as aluminum. The shoji 5 swings and displaces between the state in which the window opening 1A is closed and the state in which the window opening 1A is opened (the state shown in FIG. 1 and the like).

The shoji 5 according to the present embodiment swings and displaces so that the lower end side of the shoji 5 is the swing center and the upper end side falls toward the room. The side frames 3A, 3B or the lower frame 3C of the frame body 3 are provided with a support portion (not shown) for swingably supporting the shoji 5.

When the user unlocks the lock mechanism (not shown), the shoji 5 swings and displaces so that the upper end falls toward the room due to the gravity acting on the shoji 5. The lock mechanism is a mechanism for holding the shoji 5 at a position where the window opening 1A is closed.

2. 2. State holding mechanism <Overview of state holding mechanism>
The state holding mechanism 7 is a mechanism for holding the shoji 5 in the first state (see FIG. 2) or the second state (see FIG. 3). In the first state and the second state, the upper end of the shoji 5 is tilted toward the room, and the window opening 1A is opened.

As shown in FIG. 3, the upper end of the shoji 5 in the second state is located below the shoji 5 in the first state (see FIG. 2), and the window opening 1A is larger than that in the first state. open. The operation unit 9 is a part operated by the user when the first state is released.

The operation unit 9 is arranged on the front side of the shoji 5. In the present embodiment, the “front of the shoji 5” is a portion of the shoji 5 facing the room. Therefore, the shoji 5 according to the present embodiment swings and displaces so as to fall toward the front side of the shoji 5.

As shown in FIGS. 4 and 5, the state holding mechanism 7 includes at least a swing arm 71, a lock plate 72, and the like. The swing arm 71 is an arm-shaped member that swings and displaces in conjunction with the swing displacement of the shoji 5.

One end (upper end) side of the swing arm 71 is rotatably connected to the frame body 3. The other end (lower end) side of the swing arm 71 is rotatably connected to the shoji 5 via a fixing bar 70. The connecting portion between the swing arm 71 and the frame body 3 is slidable with respect to the frame body 3. The fixing bar 70 is a member fixed to the frame portion of the shoji 5.

As shown in FIGS. 2 and 3, the lock plate 72 is an example of a lock member arranged on the side surface side of the shoji 5. The lock plate 72 is displaceable between the engaging position (see FIG. 4) and the disengaging position (see FIG. 5).

The engaging position is a position where the lock plate 72 and the swing arm 71 are engaged. The disengagement position is a position where the engagement state is released by deviating from the engagement position. Then, when the lock plate 72 is in the engaging position, the shoji 5 is held in the first state. When the lock plate 72 is in the release position, the shoji 5 is in a state where it can swing up to the second state.

<Details of state holding mechanism>
As shown in FIG. 6, the state holding mechanism 7 has a return spring 73, guide pins 74A, 74B, and the like, in addition to the swing arm 71 and the lock plate 72. The return spring 73 exerts an elastic force for holding the lock plate 72 in the engaging position.

Specifically, one end of the coil spring-shaped return spring 73 is connected to the lock plate 72 via a fastener 73A such as a P screw, and the other end is connected to the fixing bar 70 via a guide pin 74A. ..

The return spring 73 is configured so that the amount of elastic deformation increases when the lock plate 72 is displaced from the engaging position to the releasing position side. Therefore, the return spring 73 always exerts an elastic force that displaces the lock plate 72 toward the engaging position side on the lock plate 72.

The guide pins 74A and 74B are fixed to the fixing bar 70 and regulate the displacement direction of the lock plate 72 and the displacement direction of the operation unit 9. That is, the operation unit 9 is provided with elongated holes 9A and 9B into which the guide pins 74A and 74B are inserted. The major axis direction of the elongated holes 9A and 9B is substantially parallel to the operation direction.

The operation direction is parallel to the direction from the front side of the shoji 5 toward the back side of the shoji 5. Therefore, the operation unit 9 can be displaced in parallel with the operation direction and cannot be displaced in the direction orthogonal to the operation direction.

The lock plate 72 is also provided with elongated holes 72A and 72B into which guide pins 74A and 74B are inserted. The major axis direction of the elongated holes 72A and 72B is a direction inclined with respect to the operation direction. The direction of the inclination is a direction that satisfies the following requirements.

That is, when the pressing force F (see FIG. 4) in the direction from the front side of the shoji 5 toward the back side of the shoji 5 acts on the lock plate 72, the lock plate 72 is released from the engaging position side to the disengaging position side. It is the direction to displace to.

The operation unit 9 has an operation surface 9C, a pressing unit 9D, and the like. As shown in FIG. 2, the operation surface 9C is located on the front side of the shoji 5. The pressing portion 9D is located on the back surface side of the shoji 5, and when the pressing force F acts on the operation surface 9C, the pressing force is transmitted to the lock plate 72.

Therefore, as shown in FIG. 7, the operation unit 9 is configured to extend from the lock plate 72 side (back side of the shoji 5) to the front side of the shoji 5 via the side surface of the shoji 5. That is, a U-shaped or U-shaped cross-sectional shape is formed by the operating surface 9C, the pressing portion 9D, and the portion 9E connecting the operating surface 9C and the pressing portion 9D (see FIG. 6).

When the lock plate 72 is in the engaging position, as shown in FIG. 4, the protrusion 71A of the swing arm 71 engages with the corner portion of the lock plate 72. A contact surface 71C that is substantially orthogonal to the direction of the pressing force F is provided at a portion of the protrusion 71A that comes into contact with the lock plate 72.

Therefore, in the state where the swing arm 71 and the lock plate 72 are engaged, even if the pressing force F acts on the operating portion 9, the force that displaces the lock plate 72 toward the release position side, that is, the contact surface. No force tilted with respect to 71C is generated on the lock plate 72.

In other words, the state holding mechanism 7 is configured so that the displacement of the lock plate 72 is regulated when the swing arm 71 and the lock plate 72 are engaged with each other. That is, the protrusion 71A functions as a release / stop mechanism that makes it impossible to release the first state when the shoji 5 is in the first state.

<Operation of state holding mechanism>
When the lock plate 72 is in the engaging position, as shown in FIGS. 2 and 4, the protrusion 71A of the swing arm 71 engages with the corner portion of the lock plate 72, so that the shoji 5 is in the first state. Is held in.

When the shoji 5 is pressed toward the back side by the user, the engagement between the lock plate 72 and the protrusion 71A is released. Therefore, when the pressing force F acts on the operation unit 9 (operation surface 9C) while the shoji 5 is pressed toward the back surface side, a force is generated to displace the lock plate 72 toward the release position side.

As a result, the lock plate 72 is displaced to the release position side (see FIGS. 3 and 5), so that the shoji 5 is opened more than the first state by the gravity acting on the shoji 5, that is, the second state. Can be.

When the shoji 5 shifts from the first state to the second state, and when the shoji 5 shifts from the second state to the first state, the upper end 72C of the lock plate 72 has an arcuate sliding surface. Sliding contact with 71B.

Then, when the user presses the shoji 5 in the second state in the closing direction, the swing arm 71 is in an upright state while the sliding surface 71B slides into contact with the upper end 72C of the lock plate 72. When the protrusion 71A gets over the upper end 72C of the lock plate 72, the lock plate 72 is brought into the engaging position by the elastic force of the return spring 73.

3. 3. Features of the opening / closing window according to the present embodiment In the opening / closing window 1 according to the present embodiment, the operation unit 9 operated when the first state is released is arranged on the front side of the shoji 5. As a result, the opening / closing window 1 can improve the workability of the release work.

The operation unit 9 extends from the lock plate 72 side to the front side of the shoji 5 via the side surface of the shoji 5. As a result, the person who provides the opening / closing window 1 can easily arrange the operation unit 9 in the opening / closing window 1 while using the existing frame 3 without newly providing a hole or the like in the frame 3 or the shoji 5. Can be possible.

The state holding mechanism 7 is configured to release the first state when the operating unit 9 is pressed and displaced in the operating direction. Therefore, the user can easily release the first state.

(Second Embodiment)
<Outline of this embodiment>
As shown in FIGS. 8 to 11, the opening / closing window 1 according to the present embodiment includes a release maintenance mechanism 11 and a notification unit 13 in addition to the configuration shown in the above-described embodiment.

The following description is about the difference from the opening / closing window 1 according to the above-described embodiment. The same configuration requirements and the like as those in the above-described embodiment are designated by the same reference numerals as those in the above-described embodiment. Therefore, in the present embodiment, the duplicate description is omitted.

The release / maintenance mechanism 11 is a mechanism for maintaining the shoji 5 in a swingable state when the operation unit 9 is operated. The notification unit 13 is a portion that notifies that when the operation unit 9 is operated and the shoji 5 is in the “swingable state”, the “swingable state” is reached.

<Details of release maintenance mechanism>
The release / maintenance mechanism 11 has at least a release / maintenance member 111, a maintenance spring 112, and the like. The release maintenance member 111 is a member that can engage with the lock plate 72 when the lock plate 72 is in the release position.

The disengagement maintenance member 111 is displaceable between a first position (see FIG. 10) where the lock plate 72 can be engaged and a second position (see FIG. 8 and the like) where the disengagement is disengaged. Specifically, it is as follows.

That is, the lock plate 72 according to the present embodiment is provided with the recess 72D as shown in FIG. The release maintenance member 111 is provided with an engaging portion 113 that can be engaged so as to fit into the recess 72D.

The release maintaining member 111 is rotationally displaced between the first position and the second position while being rotatably supported by the guide pin 74B. That is, the rotation center position of the release maintenance member 111 is immovable with respect to the shoji 5.

Then, as shown in FIG. 10, when the engaging portion 113 is fitted into the recess 72D, the release maintaining member 111 becomes the first position. As shown in FIGS. 8, 9 and 11, when the engaging portion 113 is disengaged from the recess 72D, the release maintaining member 111 is in the second position.

When the engaging portion 113 is fitted in the recess 72D, the displacement of the lock plate 72 is restricted. Therefore, in this state, the lock plate 72 is maintained at the released position. In the state where the engaging portion 113 is separated from the recess 72D, the lock plate 72 can be displaced according to the operation of the operating portion 9.

The maintenance spring 112 exerts an elastic force on the release / maintenance member 111 to maintain the release / maintenance member 111 in the first position. The maintenance spring 112 according to the present embodiment is a tension coil spring.

The component in the direction intersecting the direction of the elastic force of the maintenance spring 112 functions as an elastic force for maintaining the release maintenance member 111 in the first position. The return spring 73A exerts the same function as the return spring 73.

<Notification unit>
The notification unit 13 emits a sound (hereinafter, referred to as a notification sound) for notifying that the "swingable state" has been achieved when the engaging portion 113 is fitted into the recess 72D. That is, when the engaging portion 113 is fitted into the recess 72D, the lock plate 72 is maintained at the released position, so that the notification unit 13 emits a notification sound.

The notification unit 13 according to the present embodiment emits a collision sound generated when the engaging portion 113 collides with another member when the engaging portion 113 rushes into the recess 72D due to the elastic force of the maintenance spring 112. It is said.

<Opening operation of opening / closing window>
When the opening / closing window 1 is in the closed state, that is, when the shoji 5 is in the closed state, the swing arm 71 is not engaged with the lock plate 72 and is released and maintained as shown in FIG. The member 111 is in the second position.

In the closed state, when the closing mechanism (not shown) for keeping the shoji 5 in the closed state is released, the gravity acting on the shoji 5 causes the shoji 5 to have a chamber at the upper end side centering on the lower end side. Rotate and displace so that it falls inward.

Since the swing arm 71 rotates with respect to the shoji 5 in accordance with the rotational displacement of the shoji 5, the protrusion 71A engages with the corner portion of the lock plate 72, so that the shoji 5 is the first as shown in FIG. It is held in one state.

In the state shown in FIG. 9, the release maintaining member 111 is in the second position. Therefore, a pressing force F (see FIG. 4) is applied to the operation unit 9 in a state where the shoji 5 is pressed toward the back side by the user, that is, in a state where the swing arm 71 and the lock plate 72 are disengaged. When acted, the lock plate 72 is displaced to the release position.

Then, when the concave portion 72D provided in the lock plate 72 is displaced to the release position of the lock plate 72 and reaches a position where it can be engaged with the engaging portion 113 provided in the release maintenance member 111, the elasticity of the maintenance spring 112 is increased. Due to the force, the engaging portion 113 plunges into the recess 72D.

As a result, the collision sound emitted when the engaging portion 113 is rushed is notified as a notification sound, and as shown in FIG. 10, the lock plate 72 can be returned to the engaging position by the elastic force of the return spring 73A. Be regulated.

When the shoji 5 is further rotationally displaced toward the room from the state shown in FIG. 10, the release maintaining member 111 is pressed by the pressing portion 71D and displaced from the first position to the second position as shown in FIG. As a result, the engaging portion 113 is disengaged from the recess 72D.

When the engaging portion 113 is disengaged from the recess 72D, the engaging portion 113 is locked so as to be hooked on the fixing bar 70 or the lock plate 72, so that the engaging portion 113 is restricted from being fitted into the recess 72D (see FIG. 11). ).

The pressing portion 71D is provided on the swing arm 71 and is integrally displaced with the swing arm 71. The force with which the pressing portion 71D presses the release maintaining member 111 is the force with which the swing arm 71 is rotated, that is, the force with which the shoji 5 is rotationally displaced toward the room.

<Closed opening / closing window>
In the state shown in FIG. 11, when the user applies a force in the direction of closing the shoji 5 to the shoji 5, the shoji 5 is rotationally displaced in the order of FIG. 11 → FIG. 9 → FIG.

The engaging portion 113 is restricted from being locked to the fixing bar 70 or the lock plate 72 and fitting into the recess 72D. Therefore, unless the user applies a pressing force F (see FIG. 4) to the operating portion 9, the engaging portion 113 is maintained in a state of being separated from the recess 72D.

When the shoji 5 is rotationally displaced in the closing direction, the protrusion 71A of the swing arm 71 is displaced in the direction away from the lock plate 72, so that the swing arm 71 and the lock plate 72 engage with each other. There is no such thing.

<Characteristics of the opening / closing window according to this embodiment>
The opening / closing window 1 includes a release / maintaining mechanism 11 for maintaining the shoji 5 in a swingable state when the operation unit 9 is operated. In other words, the opening / closing window 1 according to the present embodiment is maintained in the first state unless the operation unit 9 is operated. Therefore, after the first state is released, it is possible to prevent the occurrence of problems such as the lock plate 72 returning to the engaging position at a timing unintended by the user.

The opening / closing window 1 includes a notification unit 13 for notifying that the operation unit 9 is operated and the shoji 5 is in the “swingable state”. As a result, the user can surely perceive that the "swingable state" has been achieved.

The opening / closing window 1 has a release / stop function that makes it impossible to release the first state when the shoji 5 is in the first state. As a result, it is possible to prevent the shoji 5 from being in a “swingable state” unintentionally by the user.

(Third Embodiment)
The opening / closing window 1 according to the above-described embodiment is an opening / closing window having a release / stop function that makes it impossible to release the first state when the shoji 5 is in the first state. On the other hand, the opening / closing window 1 according to the present embodiment is an opening / closing window whose release / stopping function is abolished.

The following description is a description of the differences from the opening / closing window 1 according to the above-described embodiment. The same configuration requirements and the like as those in the above-described embodiment are designated by the same reference numerals as those in the above-described embodiment. Therefore, in the present embodiment, the duplicate description is omitted.

That is, in the opening / closing window 1 according to the above-described embodiment, as shown in FIG. 13, the contact surface 71C of the swing arm 71 (projection portion 71A) and the contact surface 71C of the lock plate 72 when engaged. The contacted surface 72E to be contacted is formed of a surface substantially parallel to the major axis direction of the elongated hole 72B.

When a pressing force F (see FIG. 4) acts on the operating portion 9 in the first state, that is, the state shown in FIG. 13, the contacted surface 72E can be displaced with respect to the contact surface 71C. Therefore, when the pressing force F acts on the operation unit 9, the lock plate 72 is displaced to the release position without the user pressing the shoji 5 toward the back side.

As a result, the user can easily put the shoji 5 into a "swingable state". In the above-described embodiment, since the contact surface 71C is substantially orthogonal to the direction of the pressing force F, the lock plate 72 is displaced to the release position side even if the pressing force F acts on the operation unit 9. It's hard to do.

(Other embodiments)
The opening / closing window 1 according to the above-described embodiment is provided with the state holding mechanism 7 only on one end side in the width direction of the shoji 5 (see FIG. 1). However, the present disclosure is not limited to this.

That is, in the disclosure, for example, the state holding mechanism 7 is provided only on the other end side in the width direction of the shoji 5, or the state holding mechanism 7 is provided on one end side and the other end side in the width direction of the shoji 5. It may be.

In the above-described embodiment, the central axis of rotation of the shoji 5 extends in the horizontal direction on the lower end side of the shoji 5, and the shoji 5 falls toward the room. However, the present disclosure is not limited to this. That is, the disclosure may be, for example, any of the following (1) to (3).

(1) An opening / closing window having a structure in which the rotation center axis of the shoji 5 extends in a horizontal direction on the lower end side of the shoji 5 and the shoji 5 falls to the outside of the room. (2) An opening / closing window having a structure in which the rotation center axis of the shoji 5 extends in a horizontal direction on the upper end side of the shoji 5 and the shoji 5 falls indoors or outdoors. (3) An opening / closing window in which the central axis of rotation of the shoji 5 is vertical and the shoji 5 swings or rotates in the horizontal direction.

The state holding mechanism 7 according to the above-described embodiment is configured to release the first state when the operating unit 9 is pressed in the operating direction. However, the present disclosure is not limited to this. That is, the disclosure may be configured to include, for example, a state holding mechanism 7 that releases the first state when the operation unit 9 is slid.

The operation unit 9 according to the above-described embodiment has a configuration that extends from the lock plate 72 side to the front side of the shoji 5 via the side surface of the shoji 5. However, the present disclosure is not limited to this. That is, the disclosure may be, for example, an operation unit 9 having a structure in which a hole is provided in the frame body 3 and extends to the front side of the shoji 5 through the hole.

The opening / closing window 1 according to the first embodiment was not provided with the notification unit 13. However, the present disclosure is not limited to this. That is, in the disclosure, for example, the notification unit 13 may be provided in the opening / closing window 1 according to the first embodiment.

The notification unit 13 according to the above-described embodiment has a configuration in which a notification sound is generated by utilizing a collision sound when the engaging unit 113 rushes into the recess 72D. However, the present disclosure is not limited to this. That is, the disclosure may be configured to notify, for example, a sound other than the collision sound or a sound other than the sound visible to the user.

Furthermore, the present disclosure is not limited to the above-described embodiment as long as it conforms to the gist of the invention described in the above-described embodiment. Therefore, either the configuration in which at least two embodiments of the plurality of embodiments described above are combined, or the configuration requirements shown in the illustration or the configuration requirements described with reference numerals in the above-described embodiment are abolished. It may be a configured configuration.

1 ... Opening and closing window 1A ... Window opening 3 ... Frame 5 ... Shoji 7 ... State holding mechanism 71 ... Swing arm 72 ... Lock plate 9 ... Operation unit

Claims (8)

The frame that borders the window opening and
A shoji that swings and displaces between the state in which the window opening is closed and the state in which the window opening is open.
A state holding mechanism for holding the open state of the shoji in a first state or a second state that is wider than the first state.
An opening / closing window including an operation unit that is operated when the first state is released to make the shoji swingable, and is arranged on the front side of the shoji. The opening / closing window according to claim 1, further comprising a release / maintaining mechanism that maintains the "swingable state" when the operation unit is operated. The state holding mechanism is
A swing arm that swings and displaces in conjunction with the swing displacement of the shoji, one end of which is connected to the frame, the other end of which is connected to the shoji, and the connection with the frame or the shoji. A swingable arm whose portion is slidable, and a displaceable position between an engaging position in which the shoji is engaged with the swinging arm to bring the shoji into the first state and a release position in which the shoji is in the "swingable state". Has a lock member
The release maintenance mechanism
A release maintaining member that can engage with the lock member when the lock member is in the release position, and a first position capable of engaging with the lock member and a second position at which the engagement is released. The opening / closing window according to claim 2, further comprising a release / maintaining member that can be displaced between the release / maintaining members and a maintenance spring that acts an elastic force for maintaining the release / maintenance member at the first position on the release / maintenance member. .. Any of claims 1 to 3 including a notification unit for notifying that when the operation unit is operated and the shoji is in the "swingable state", the "swingable state" is notified. The opening / closing window according to item 1. The opening / closing window according to any one of claims 1 to 4, further comprising a release / stop mechanism that makes the first state unreleaseable when the shoji is in the first state. The opening / closing window according to any one of claims 1 to 4, wherein the state holding mechanism makes the shoji swingable when the operation unit is operated, regardless of the state of the shoji. The opening / closing window according to claim 3, wherein the operating portion extends from the lock member side to the front side of the shoji via the side surface of the shoji. The state-holding mechanism according to claim 3 or 7, wherein the state-holding mechanism is configured to release the first state when the operation unit is displaced from the front side of the shoji toward the back side of the shoji. Opening and closing window.

Images