JP2011196086A - Window opening/closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a window opening/closing device capable of surely opening a sliding screen.SOLUTION: The sliding screen 4 is supported in the state of being slidable in the inward/outward direction of a building, in a window frame 3 which is disposed in the exterior wall of the building. The sliding screen 4 is urged to the outside of the building by a balancer 8. A water sealing member 10 is disposed along a stile/rail 6 of the sliding screen 4 and a peripheral edge of the window frame 3. When the sliding screen 4 is put into a fully closed state, the water sealing member 10 adheres to the stile/rail 6 or the window frame 3, so as to close a section between the stile/rail 6 and the window frame 3. A lock mechanism 27 for locking the sliding screen 4 in the fully closed state is provided. The lock mechanism 27 can unlock the sliding screen. An initial operation portion 43, which pushes out the sliding screen 4 to the outside of the building when the lock mechanism 27 unlocks the sliding screen, is provided.

Description

  The present invention relates to a window opening / closing device that opens and closes a window for ventilation and smoke exhaustion.

  In a building such as a building, as shown in Patent Document 1, for example, a so-called horizontal axis rotating window that opens and closes with a shoji that can swing around an upper and lower middle part is installed at a high position on the outer wall of the building. There are some which ventilate or smoke by driving open and close by an electric device such as a motor.

  Specifically, in the horizontal axis rotation window, the shoji is rotatably mounted in a window frame that is framed in a square shape, and the shoji is a plate glass on the inner side of the square frame. Is installed. Then, when a water-stopping member made of synthetic rubber or the like is disposed along the edge of the shoji screen or the window frame, and when the window is fully closed, the water-stopping member is in close contact with the shoji screen or the window frame. The space between the window frame and the fence is blocked to prevent rainwater from entering the building.

JP-A-10-102932

  Since the window is exposed to dust, wind and rain in the air, the dust or the like is likely to enter between the water-stopping member and the window frame, between the water-stopping member and the shoji screen. In that case, there has been a problem that the water stop member, the window frame, and the shoji of the shoji are adhered by dust and the shoji is difficult to open.

  The present invention has been provided for the purpose of solving such inconveniences, and it is an object of the present invention to provide a window opening / closing device capable of reliably opening a shoji.

  In order to solve such inconvenience, the present invention supports the shoji 4 in a window frame 3 disposed on the outer wall of the building in a state in which the shoji 4 can swing in and out of the building. 8 is urged to the outside of the building or the inside of the building, and the water stop member 10 is arranged along the edge 6 of the shoji 4 or the periphery of the window frame 3 to stop when the shoji 4 is fully closed. A lock mechanism 27 that locks the shoji 4 in a fully closed state by the water member 10 being in close contact with the eave 6 or the window frame 3 so as to block the space between the eave 6 and the window frame 3 by the water stop member 10. The lock mechanism 27 is capable of releasing the lock, and when the lock mechanism 27 releases the lock, an initial operation section 43 that pushes the shoji 4 to the outside of the building is provided. To do. Here, when the entire shoji 4 swings to the outside or inside of the building, the lower part of the shoji 4 swings to the outside of the building around the hinge, and the upper part of the shoji 4 swings to the inside of the building. In this case, the upper part of the shoji 4 swings to the outside of the building and the lower part of the shoji 4 swings to the inside of the building with the hinge as the axis. Further, as the urging means 8, for example, one using the weight of a balancer or one using a spring is applicable.

  The lock mechanism 27 has a lock member 29 for locking the locking piece 28 attached to the shoji 4 and a drive unit 30 for driving the lock member 29, and moves in conjunction with the lock member 29. The abutting portion 55 is provided, and the initial operation portion 43 can be configured to push the shoji 4 to the outside of the building by operating in accordance with the abutting of the abutting portion 55. Here, the drive unit 30 corresponds to an actuator such as an electric cylinder or a motor.

  The lock member 29 and the abutment portion 55 are connected to each other by the coupling mechanism 31 so that the abutment portion 55 abuts on the initial operation portion 43 when the lock member 29 is detached from the locking piece 28. It can be arranged in the coupling mechanism 31.

  In the window opening and closing device of the present invention, when the lock mechanism 27 that locks the shoji 4 in the fully closed state releases the lock, the initial operation section 43 pushes the shoji 4 to the outside of the building. Even if 10 is attached to the window frame 3 or the flange 6, the water blocking member 10 and the window frame 3 or the flange 6 can be reliably separated to open the shoji 4.

  When the abutment portion 55 moves in conjunction with the lock member 29 and abuts on the initial motion operation portion 43, the initial motion operation portion 43 pushes the shoji 4 toward the outside of the building. After the unlocking by 27, the shoji 4 can be swung immediately and the shoji 4 can be opened quickly.

  When the locking member 29 is disengaged from the locking piece 28 and the contact mechanism 55 is disposed in the coupling mechanism 31 so as to contact the initial motion operation section 43, the timing at which the initial motion operation section 43 pushes the shoji 4 is locked. It can be precisely matched to the release timing. Accordingly, for example, it is possible to reliably prevent the window frame 3 and the heel 6 from being separated because the timing at which the initial operation operation unit 43 pushes the shoji 4 is earlier than the unlock timing.

It is a front view of the window opening and closing apparatus concerning the present invention. It is a front view of the window opening / closing operation part which concerns on this invention. It is a side view of a window opening / closing operation part. It is a vertical side view of a window opening and closing device. It is a cross-sectional top view which shows the principal part of a window opening / closing apparatus. It is a top view which shows the locking member which concerns on this invention. It is a front view which shows the principal part of the connection mechanism which concerns on this invention. It is a top view of the initial operation part which concerns on this invention. It is a front view of an initial operation part. It is a top view for demonstrating operation | movement of an initial operation part. It is a vertical side view for demonstrating operation | movement of a window opening / closing apparatus. It is a vertical side view for demonstrating operation | movement of a window opening / closing apparatus.

  An embodiment in which the window opening and closing device according to the present invention is applied to a horizontal axis rotation window will be described with reference to the drawings. As shown in FIG. 1, the horizontal axis rotation window is configured as a set of double windows in which windows 2 are arranged in the left-right direction, and is attached to an opening formed on the outer wall of a building such as a building, for example. It is like that.

  Each window portion 2 is arranged on a building outer wall, and a shoji 4 is mounted in a rectangular frame frame 3 via a pair of left and right hinges 5. The shoji 4 is equipped with a plate glass 7 on the inner side of the ridge 6 that is framed in a square shape. Each hinge 5 is arranged above the vertical center of the left and right vertical frames 3a and 3a of the window frame 3, and each shoji 4 swings in and out of the building around the left and right hinges 5 and 5 as axes. It is free to move.

  As shown in FIG. 1 and FIG. 4, a horizontally long balancer (biasing means) 8 is installed horizontally on the upper side 6a of the side 6 of the shoji 4 and on the inner side of the upper side 6a. The shoji 4 is urged by the weight of the balancer 8 so that the upper part of the shoji 4 is inclined toward the inside of the building. Each window portion 2 is provided above the left and right hinges 5 and 5 with a water stop member 10 made of synthetic rubber or the like along the peripheral edge of the saddle 6 on the inner side of the saddle 6 of the shoji 6. Below the left and right hinges 5, 5, a water stop member 10 is provided along the periphery of the window frame 3 on the exterior side of the window frame 3 (see FIG. 12). And when the shoji 4 is made into a fully-closed state, when the water stop member 10 closely_contact | adheres to the eaves 6 or the window frame 3, between the eaves 6 and the window frame 3 is obstruct | occluded by the water stop member 10. FIG.

  As shown in FIG. 2 and FIG. 3, the swinging of the shoji 4 is restricted and the shoji 4 is driven to a closed position on the inside of the vertical 9 located between the left and right window portions 2 and 2. A window opening / closing operation unit 11 is provided. The window opening / closing operation unit 11 includes a first actuator 12 disposed on the inside of the building of the vertical 9, a vertical movement bracket 13 connected to the shaft 12 a of the first actuator 12, and the vertical movement bracket 13. Are provided with a pair of left and right arms 14 and 14 respectively supported by shock absorbers 16 and a pair of upper and lower synthetic resin rollers 15 and 15 rotatably supported by each arm 14. . Both the shojis 4 and 4 are driven simultaneously by the window opening / closing operation unit 11.

  The 1st actuator 12 consists of an electric cylinder etc., and the axis | shaft 12a is expanded-contracted to an up-down direction. The first actuator 12 is swingably supported by a support bracket 17 that has a lower end fixed to the vertical 9. The shaft 12 a of the first actuator 12 and the vertical movement bracket 13 are connected via an impact buffer 18. The shock buffering part 18 is fixed to the vertical movement bracket 13 and has a L-shaped connecting bracket 19 in a side view and a buffer made of synthetic rubber arranged vertically with an upper end part 19a of the connecting bracket 19 interposed therebetween. The members 20 and 20 are included.

  A connecting tool 21 is swingably connected to the tip of the shaft 12a of the first actuator 12. A fixed shaft 21a provided on the connector 21 and extending upward passes through the connection bracket 19 and both the buffer members 20 and 20, and is arranged at the upper end of the fixed shaft 21a protruding upward from the upper buffer member 20. The nut 22 is tightened to hold both the buffer members 20 and 20 on the fixed shaft 21a. As described above, since both the buffer members 20 and 20 are interposed between the shaft 12a of the first actuator 12 and the vertical movement bracket 13, the vertical movement bracket 13 and the first actuator 12 are moved by the both buffer members 20 and 20. Transmission of impact, vibration or the like to the shaft 12a is mitigated.

  The vertically moving bracket 13 is engaged with a guide member 24 fixed to the vertical 9 so as to be vertically movable. Specifically, the guide member 24 is provided so as to extend in the vertical direction along the vertical 9, and grooves 24 a extending in the vertical direction are formed on the left and right side surfaces of the guide member 24, respectively. The vertical movement bracket 13 is provided with a plurality of anti-rest rollers 25 that roll in the grooves 24 a of the guide member 24, and the anti-motion rollers 25 cause the vertical movement bracket 13 to move vertically along the guide member 24. It can move smoothly.

  Each arm 14 is bent at the center in the vertical direction, and the upper part extends obliquely upward toward the inside of the building, and the lower part extends obliquely downward toward the inside of the building. Rollers 15 are respectively disposed at the upper and lower ends of each arm 14. Each shock absorber 16 includes an arm side fixing portion 16a fixed to a bent portion of the arm 14, a bracket side fixing portion 16b fixed to the vertical movement bracket 13, an arm side fixing portion 16a, and a bracket side fixing portion. And a synthetic rubber cushioning member 16c interposed between them. The shock or vibration transmitted from the arm 14 to the vertical movement bracket 13 is alleviated by the buffer member 16c.

  As shown in FIG. 1 and FIG. 2, among the left and right vertical fences 6 b of each shoji 4, the vertical fence 6 b located on the side of the vertical 9 protrudes toward the inside of the building at substantially the same height as the hinge 5. The swing restricting tool 26 is fixed. As shown in FIG. 4, each swing restricting tool 26 has a base portion 26a fixed to the vertical shaft 6b and a restricting portion 26b extending from the base portion 26a toward the inside of the building. The restricting portion 26b is bent so that the tip end thereof extends obliquely upward, and the upper and lower rollers 15 and 15 are positioned so as to sandwich the tip end portion of the restricting portion 26b from above and below.

  As shown in FIGS. 1 and 5, a lock mechanism 27 for locking the shoji 4 in a fully closed state is disposed over both lower frames 3 b and 3 b of the window frame 3 of the left and right window portions 2. As shown in FIGS. 5 to 7, the lock mechanism 27 includes a pair of left and right lock members 29 and 29 for locking the locking pieces 28 and 28 attached to the shoji 4 of the two window portions 2, and locks thereof. It has the 2nd actuator (drive part) 30 for driving the members 29 and 29, and the connection mechanism 31 which connects the axis | shaft 30a of the 2nd actuator 30, and the lock members 29 and 29 on either side. The second actuator 30 is arranged inside the building of the lower frame 3b of one window portion 2 (left side in FIG. 1), and one end portion (left side in FIG. 1) of the second actuator 30 is connected to one window portion 2. It is fixed to the lower frame 3b. The shaft 30a of the second actuator 30 extends and contracts in the left-right direction. The second actuator 30 includes an electric cylinder.

  Each locking piece 28 is attached to the left and right center of the lower surface of the lower arm 6c of each shoji 4 and, as shown in FIG. 6, extends in the left-right direction and has its left and right ends bent toward the inside of the building. It is formed in a trapezoid shape. Each lock member 29 is disposed on the upper surface of the lower frame 3b of each window portion 2, and includes a flat plate-like base portion 29a and a columnar locking portion 29b extending upward from the base portion 29a.

  As shown in FIGS. 5 to 7, the coupling mechanism 31 is fixed to the shaft 30 a of the second actuator 30 and extends from the lower frame 3 b of one window portion 2 to the lower frame 3 b of the other window portion 2. A long plate-shaped slide plate 33, a long plate-shaped first connecting rod 34, which is fixed to the base 29a of one lock member 29 (left side in FIG. 5) and extends in the left-right direction, and the other lock member 29 ( The second connecting rod 35 having a long plate shape, which is fixed to the base portion 29a on the right side in FIG. 5 and extends in the left-right direction, a first fixing tool 36 for connecting the slide plate 33 and the first connecting rod 34, and a slide A second fixing member 37 for connecting the plate 33 and the second connecting rod 35 is provided. Both locking members 29 and 29 are interlocked by the coupling mechanism 31.

  The slide plate 33 is fitted to a first guide rail 38 extending in the left-right direction from the lower frame 3b of one window portion 2 to the lower frame 3b of the other window portion 2, and is attached to the first guide rail 38. It can slide along the left and right direction. The first connecting rod 34 is fitted to a second guide rail 39 extending in the left-right direction along the lower frame 3 b, and is slidable in the left-right direction along the second guide rail 39. The second connecting rod 35 is fitted to a third guide rail 40 that extends in the left-right direction along the lower frame 3 b, and is slidable in the left-right direction along the third guide rail 40.

  Then, when both the shojis 4 and 4 are fully closed, the second actuator 30 is driven and the slide plate 33 moves to the left in FIG. 5, so that the left and right lock members 29 and 29 move to the left. Thus, the locking portions 29b of the lock members 29 reach the outside of the building of the locking pieces 28 of the both shojis 4 and 4 in the fully closed state (the state of the solid line in FIG. 6). Thereby, it will be in the locked state from which the lower part side of each shoji 4 is prevented from rock | fluctuating to the building exterior side. On the other hand, when the second actuator 30 is driven in the locked state and the slide plate 33 moves to the right in FIG. 5, the left and right lock members 29 and 29 move to the right, respectively. Stop part 29b leaves | separates from each locking piece 28 of both shojis 4 and 4 (state of the phantom diagram of FIG. 6), respectively. Thereby, the lock is released and each shoji 4 can be opened.

  Further, as shown in FIG. 7, guide pieces 36 a and 36 a protrude obliquely downward from the left and right ends of the upper end portion of the first fixture 36, and the left and right portions provided on the lower frame 3 b of one window portion 2. The detection tools 42a and 42a of the pair of limit switches 42 and 42 are guided to the upper end surface of the first fixture 36 after contacting the upper surfaces of the guide pieces 36a and 36a. When the left limit switch 42 comes into contact with the upper end surface of the first fixture 36, the above-described locked state is established. When the right limit switch 42 comes into contact with the upper end surface of the first fixture 36, the above-described locked state is established. Is unlocked. That is, it is possible to detect the locked state or the unlocked state by both limit switches 42 and 42.

  As shown in FIGS. 1 and 5, the lower frame 3 b of each window portion 2 has an initial operation portion 43 for pushing the lower arm 6 c of the shoji 4 toward the outside of the building when opening the shoji 4 in the fully closed state. Respectively. As shown in FIG. 8 and FIG. 9, each initial motion operating portion 43 is formed in a base portion 45 fixed to the lower frame 3 b and bent in an L shape in plan view, and the bent portion 46 a swings around the base portion 45. It has a pressing part 46 that can be supported, and a swinging part 47 that is swingably supported by a first arm 46b that extends from the bent part 46a of the pressing part 46 toward the inside of the building. The pressing portion 46 rotatably supports a roller 48 at the tip of a second arm 46c extending in the left-right direction along the lower frame 3b from the bent portion 46a. The roller 48 rotates in the horizontal direction.

  The pressing portion 46 is urged clockwise in FIG. 8 by the first coil spring 50 spanned between the bent portion 46 a and the base portion 45, and the second arm 46 c is attached to the stopper 51 provided on the base portion 45. By being received, the second arm 46c is maintained in the posture of FIG. 8 along the lower frame 3b. The oscillating portion 47 is urged counterclockwise in FIG. 8 by a second coil spring 52 spanned between the end portion on the base portion 45 side and the base portion 45. Further, the swinging portion 47 has its right side portion 47a bent downward (see FIG. 9), and the end surface of the right end portion 47a on the base portion 45 side is received by the base portion 45 and maintained in the posture of FIG. The The left side portion 47b of the swinging portion 47 is notched in an inclined shape in a plan view that approaches the right end portion 47a as it goes inside the building.

  As shown in FIGS. 5 and 7, operation tools 53 for driving the initial operation unit 43 are attached to the left and right of the slide plate 33 of the coupling mechanism 31. The operation tool 53 includes a fixed portion 54 that fixes the base portion 54a to the slide plate 33 and has an upper end portion 54b bent toward the inside of the building, and a cylindrical contact that extends upward from the upper end portion 54b of the fixed portion 54. Part 55. That is, the contact portion 55 moves in conjunction with the lock member 29 by the connecting mechanism 31.

  When the slide plate 33 is moved rightward to open the two window portions 2, the contact portion 55 of the operation tool 53 contacts the left side portion 47 b of the swing portion 47 of the initial operation portion 43 ( The state of the solid line diagram in FIG. 8), the oscillating portion 47 is pushed rightward. Then, the pressing portion 46 swings counterclockwise in FIG. 8 against the urging force of the first coil spring 50 (see the phantom diagram in FIG. 8), and the roller 48 is pressed against the lower collar 6c of the shoji 4. Forcibly push the lower arm 6c to the outside of the building. Next, with the further movement of the slide plate 33 in the right direction, the contact portion 55 moves away from the swinging portion 47 of the initial operation portion 43 (the state of the phantom diagram of FIG. 8). Accordingly, the pressing portion 46 swings clockwise in FIG. 8 by the urging force of the first coil spring 50 and returns to the posture shown by the solid line in FIG.

  Thereafter, when the slide plate 33 is moved to the left in order to close both the window portions 2, the abutment portion 55 abuts on the right end portion 47a of the swinging portion 47 (the state of the solid line in FIG. 10). The rocking part 47 is pushed to the left as it is. Then, the swinging portion 47 swings clockwise in FIG. 10 against the urging force of the second coil spring 52. Accordingly, the swinging portion 47 does not hinder the leftward movement of the contact portion 55, and the contact portion 55 can return to a predetermined return position. When the contact portion 55 returns to the return position, the swinging portion 47 swings counterclockwise in FIG. 10 by the biasing force of the second coil spring 52 and returns to the posture shown by the solid line in FIG. By returning the pressing portion 46 and the swinging portion 47, when the shoji 4 is fully closed, it is avoided that the initial operation portion 43 comes into contact with the shoji 4.

  Thus, when opening both the window parts 2, the initial operation part 43 pushes the lower lid 6c of the shoji 4 toward the outside of the building, so that the water-stopping member 10 is attached to the window frame 3 or the fence 6 due to dirt or the like. Even if it is, the shoji 4 can be opened by reliably pulling apart the water-stop member 10 and the window frame 3 or the eaves 6.

  As shown in FIG. 1 and FIG. 4, soft absorbers 57 are respectively arranged at the left and right ends of the lower end portion of the window frame 3 of each window portion 2, and a obstacle is used when the window portion 2 is closed by the soft absorber 57. It is mitigated that the ridge 6 of 4 collides with the window frame 3 of the window portion 2. In FIG. 1, the left vertical frame 3a in the left window 2 and the right vertical frame 3a in the right window 2 receive the swinging shoji 4 and regulate the opening angle of the shoji 4. A restricting tool 58 is provided. The restricting tool 58 extends obliquely downward from the vertical frame 3a (see FIG. 4), and its front end 58a is bent inward of the window 2 to face the saddle 6 of the shoji 4. A buffer member 59 is disposed on the upper surface of the front end 58a of the restricting tool 58 so as to alleviate the impact when the shoji 4 hits.

  In FIG. 3, limit switches 61, 62, and 63 are arranged at three positions on the guide member 24. The upper limit switch 61 has an upper detector 13 a provided at the upper end of the vertical movement bracket 13. When detected, the arm 14 is raised to the fully closed position shown in FIG. 4, and when the middle limit switch 62 detects the upper detector 13a of the vertical movement bracket 13, the arm 14 is shown in FIG. Down to the ventilation position. When the lowermost limit switch 63 detects the lower detector 13b provided at the lower end of the vertical movement bracket 13, the arm 14 is lowered to the fully open position shown in FIG.

  Next, an operation example of the horizontal axis rotation window according to the present invention will be described. When the shoji 4 of each window 2 is in the fully closed position of FIG. 4, the engaging portion 29b of each lock member 29 is outside the building of each engaging piece 28 of both shoji 4 and 4 in the fully closed state. Each shoji 4 is in the locked state. At this time, each arm 14 of the window opening / closing operation unit 11 is located at the uppermost end (fully closed position).

  In this state, for example, when the ventilation mode is operated by an operation switch (not shown), the first actuator 12 is driven, the arm 14 is lowered, and the arm 14 is lowered to the ventilation position shown in FIG. Then, the driving of the first actuator 12 stops and each arm 14 stops at the ventilation position. Next, the second actuator 30 is driven, and the locking portions 29b of the lock members 29 are disengaged from the lock pieces 28 to enter the unlocked state. Further, each abutment portion 55 moves in conjunction with the unlocked state, and the roller 48 of each initial motion operation portion 43 pushes the lower arm 6c of each shoji 4 toward the outside of the building. Thereby, the window frame 3 and the eaves 6 are reliably separated, and the weight of the balancer 8 urges the lower part of each shoji 4 toward the outside of the building and the upper part of each shoji 4 toward the inside of the building. Swing. That is, each shoji 4 is opened.

  Each of the shojis 4 stops at a predetermined ventilation angle when the restricting portion 26b of the swing restricting tool 26 is received by the lower roller 15 of each arm 14 at the ventilation position. When strong wind hits each shoji 4 in this state, each shoji 4 swings in the closing direction, and the rocking 6 and the window frame 3 abut against each other through the water stop member 10. That is, each shoji 4 is regulated by being fully closed.

  Specifically, the shoji 4 in the ventilated state in FIG. 11 starts swinging in the fully closed direction with a wind of, for example, a wind speed of 3 m / s or more. When the wind becomes lower than the wind speed of 3 m / s, it returns to the ventilation angle by the weight of the balancer 8.

  Further, for example, when the shoji 4 of each window portion 2 is in the fully closed position of FIG. 4 described above, when the smoke exhaust mode is operated by the operation of the operation switch or the operation of the smoke detection device, as in the ventilation mode. Each arm 14 starts to descend and enters the unlocked state. Also at this time, the roller 48 of each initial motion operating unit 43 pushes the lower arm 6c of each shoji 4 toward the outside of the building.

  Then, each arm 14 stops at the smoke exhaust position (fully opened position) in FIG. 12, whereby each shoji 4 also stops at a predetermined smoke exhaust angle. The smoke exhaust angle is an angle that is larger than the ventilation angle of FIG. 11, whereby each window portion 2 is opened largely, and quick smoke exhaust is performed. In this smoke emission mode, each shoji 4 is received by the buffer member 59 of the restricting tool 58, and even if a strong wind hits each shoji 4 and each shoji 4 opens more than the smoke emission angle, the swinging is restricted. Blocked by tool 58.

  When the shoji 4 of each window portion 2 is open, for example, when the operation switch is operated to the fully closed mode, the first actuator 12 is driven and each arm 14 is raised. Then, the restricting portion 26b of the swing restricting tool 26 of each shoji 4 is pushed up by the roller 15 on the lower side of each arm 14, and accordingly, each shoji 4 swings to be in the fully closed state of FIG. Next, the second actuator 30 is driven, and the locking portions 29b of the lock members 29 are moved to the outside of the building of the locking pieces 28 of the window portions 2 to be locked. Thereby, the fully closed state of each shoji 4 is maintained.

  Thus, for example, when strong wind hits each shoji 4 that is opened and stopped at the ventilation angle, each shoji 4 can be swung by the wind pressure and each window portion 2 can be closed. As a result, it is possible to prevent the strong wind from flowing into the room inside the building and blowing out documents in the room. In addition, by swinging each shoji 4, the wind flowing into the building can be adjusted to an appropriate air volume. In addition, when the lock member 29 is removed from the locking piece 28, the contact portion 55 is disposed in the coupling mechanism 31 so as to contact the initial motion operation portion 43, so that the timing when the initial motion operation portion 43 pushes the shoji 4. Can be precisely matched to the unlock timing.

  Note that the roller 48 of the initial operation unit 43 may be omitted. In that case, the tip of the second arm 46 c of the pressing portion 46 of the initial operation portion 43 is directly pressed against the lower arm 6 c of the shoji 4. Further, for example, when operated in the ventilation mode or the smoke removal mode, the lock is released first and the arm 14 is lowered after the lower arm 6c of the shoji 4 is pushed to the outside of the building by the roller 48 of the initial operation section 43. Also good.

DESCRIPTION OF SYMBOLS 3 Window frame 4 Shoji 6 部 材 8 Balancer 10 Water stop member 27 Lock mechanism 28 Locking piece 29 Lock member 31 Connection mechanism 43 Initial motion operation part 55 Contact part

Claims (3)

A shoji (4) is supported in a window frame (3) placed on the outer wall of the building so as to be able to swing in and out of the building.
The shoji (4) is urged to the outside or inside of the building by the urging means (8).
When the water stop member (10) is disposed along the edge of the shoji (4) of the shoji (4) or the window frame (3) and the shoji (4) is fully closed, the water stop member (10) By closely contacting the heel (6) or the window frame (3), the water-stopping member (10) closes the space between the ridge (6) and the window frame (3).
It has a lock mechanism (27) that locks the shoji (4) in the fully closed state,
The lock mechanism (27) is capable of releasing the lock, and when the lock mechanism (27) releases the lock, an initial operation unit (43) for pushing the shoji (4) to the outside of the building is provided. A window opening and closing device characterized by. The lock mechanism (27) includes a lock member (29) for locking the locking piece (28) attached to the shoji (4), and a drive unit (30) for driving the lock member (29). Have
A contact portion (55) that moves in conjunction with the lock member (29) is provided,
The said initial movement operation part (43) pushes the shoji (4) to the building exterior side by act | operating with the contact | abutting part (55) contact | abutting, The building of Claim 1 characterized by the above-mentioned. Window opening and closing device.   The lock member (29) and the abutment portion (55) are connected to each other by a coupling mechanism (31), and abut when the lock member (29) is disengaged from the locking piece (28). The window opening and closing device according to claim 2, wherein the portion (55) is arranged in the coupling mechanism (31) so as to abut on the initial operation portion (43).