JP7390020B2 - ventilation system - Google Patents

Description

The present invention relates to a ventilation device that can be closed by wind pressure and can be opened and closed by manual operation.

The ventilation device disclosed in Patent Document 1 includes: an elongated device main body having a partition wall in which a ventilation port is formed; and a first operating plate that is slidably supported by the device main body on the indoor side of the partition wall and opens and closes the ventilation port. , and a manual operating mechanism for manually opening and closing the first operating plate. Furthermore, this ventilation device includes a second actuation plate rotatably supported by the device body on the outdoor side of the partition wall, and a spring that holds the second actuation plate in an open position away from the partition wall. . If you leave the first actuating plate in the open position using the manual operation mechanism and you are away from home and the wind gets heavy, the second actuating plate will be pushed by the wind pressure and contact the partition wall against the force of the spring, opening the ventilation opening. This prevents wind and rain from entering the room.

The ventilation device of Patent Document 2 includes an elongated device main body having a partition wall in which a ventilation port is formed, an actuating plate that is rotatably supported by the device main body and opens and closes the ventilation port as the device rotates, and a temperature-sensitive actuator. Equipped. This temperature-sensitive actuator consists of a slider that is slidably supported by the device body, a moving cam that is slidably supported by the slider, and a shape memory alloy that is installed on the slider and biases the moving cams in opposite directions. It has a spring and a bias spring and is unitized. When the movable cam moves in accordance with the temperature, an actuating plate that engages with the movable cam rotates to open and close the ventilation opening. Furthermore, this ventilator is equipped with a manual operation mechanism, and the operating plate is forcibly closed by sliding the entire unitized temperature-sensitive actuator.

WO2015/198416 publication WO2013/128658 publication

The ventilation device of Patent Document 1 has a function of closing by wind pressure and a function of opening and closing by manual operation, but requires two operating plates.
The ventilation device of Patent Document 2 does not have a function of closing the operating plate using wind pressure.

The present invention has been made to solve the above problems, and in a ventilation system,
a device body having a partition wall with a ventilation hole formed therein;
an actuating plate that is disposed on the outdoor side of the partition wall, has a shaft portion that is rotatably and slidably supported by the device main body, and opens and closes the ventilation hole as it rotates;
a cam mechanism disposed on the outdoor side of the actuation plate and rotating the actuation plate as the actuation plate slides;
a slider supported by the device main body so as to be slidable in the sliding direction of the actuating plate;
a connection mechanism that connects the actuation plate and the slider to allow rotation of the actuation plate;
a manual operation mechanism that is provided on the device main body and is connected to the slider, and that slides the slider by manual operation and further slides the actuation plate via the connection mechanism;
a spring that biases the actuating plate in the opening direction;
Equipped with
The cam mechanism has a first cam part provided on the device main body and a second cam part provided on the actuation plate,
The second cam part is arranged to face the first cam part on the indoor side, and is separated from the first cam part when the actuation plate rotates in the closing direction against the spring due to wind pressure. It is characterized by moving in the direction.

According to the above configuration, only one actuating plate is required even though it has a function of closing by wind pressure and a function of opening and closing by manual operation.

Preferably, the coupling mechanism includes a first engagement part disposed on the slider and a second engagement part protruding from the actuating plate toward the interior of the room, and the first engagement part and the second engagement part are arranged in the slider. The engaging portion is coupled to be relatively movable in a direction perpendicular to the sliding direction of the actuating plate and not relatively movable in the sliding direction.
According to the above configuration, the configuration of the coupling mechanism can be simplified.

Preferably, the spring is disposed between the first engaging part and the second engaging part.
According to the above configuration, since the spring moves together with the sliding of the actuating plate, the force of the spring can be reliably transmitted to the actuating plate. Furthermore, since the spring force is transmitted to the actuating plate using the coupling mechanism, the configuration for this transmission can be simplified.

More preferably, the first engaging part has a housing space, the second engaging part is inserted into the housing space, and the spring is housed, the spring is a tension coil spring, and one end thereof is The first end is hooked onto the first engaging portion, and the other end is hooked onto the second engaging portion.
According to the above configuration, the connection mechanism and the configuration for transmitting the force of the spring can be further simplified.

Preferably, the first cam portion has a cam surface that faces the actuating plate, and the second cam portion includes an abutting portion that protrudes from the actuating plate toward the outside and comes into contact with the cam surface.

More preferably, the cam mechanism is arranged near the shaft portion.
According to the above configuration, the actuation plate can be opened and closed with a relatively small displacement of the second cam member.

In one specific aspect of the present invention, the first engaging portion is configured by an engaging block separate from the slider, and the engaging block is supported by the slider so as to be slidable in the sliding direction, Furthermore, the slider is provided with a shape memory alloy spring and a bias spring that bias the engagement block in opposite directions along the sliding direction, and the engagement block and the shape memory alloy spring The bias spring constitutes a temperature sensitive actuator.
According to the above configuration, the opening degree of the actuating plate can be controlled by the temperature-sensitive actuator sliding the actuating plate according to the temperature.

In another specific aspect of the present invention, the first engaging portion is fixed to the slider, and the connecting mechanism connects the actuating plate and the slider so that they cannot move relative to each other in the sliding direction.
According to the above configuration, when the slider is slid by the manual operation mechanism, the actuating plate can be slid at the same time.

Preferably, the other specific embodiment further includes a temperature-sensitive actuator, and the temperature-sensitive actuator includes a moving member supported on the slider so as to be slidable in the sliding direction, and a moving member provided on the slider, and It has a shape memory alloy spring and a bias spring that bias the movable member in opposite directions along the sliding direction, and a second cam mechanism that rotates the actuating plate as the movable member slides. , the second cam mechanism has a third cam part provided on the moving member and a fourth cam part provided on the actuating plate, and the fourth cam part moves the second cam part by the force of the spring. 3 It is in contact with the cam part.
According to the above configuration, the opening degree of the actuating plate can be controlled according to the temperature using the temperature-sensitive actuator. Moreover, since this control does not involve sliding of the actuating plate, the burden on the temperature-sensitive actuator can be reduced.

More preferably, the movable member has a hollow frame shape, the first engaging portion is disposed in an internal space of the movable member, and the third cam portion is arranged to cross the first engaging portion. The fourth cam part has a cam surface extending in the sliding direction, and the fourth cam part is constituted by a contact part formed in the second engaging part and in contact with the cam surface of the third cam part.
According to the above configuration, since the fourth cam portion is formed in the second engaging portion, the configuration can be simplified.

According to the present invention, one actuating plate can be provided with a function of closing by wind pressure and a function of opening and closing by manual operation.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a sash window incorporating a ventilation system according to a first embodiment of the present invention, viewed from the indoor side. FIG. 2 is an enlarged sectional view taken along the line II-II in FIG. 1; FIG. 3 is a front view showing the ventilation device with the cover plate removed. FIG. 4 is an enlarged sectional view taken along the line IV-IV in FIG. 3, showing a state in which the actuating plate is at a fully open position when the temperature is high. FIG. 4A is a view corresponding to FIG. 4A showing a state in which the actuating plate is at a ⅓ open position when the temperature is low. FIG. 4 is an enlarged cross-sectional view along the line V-V in FIG. 3, showing a state in which the actuating plate is in a fully open position when the temperature is high. FIG. 5A is a view corresponding to FIG. 5A showing a state in which the actuating plate is in a fully closed position due to wind pressure. It is a perspective view of an actuation plate. It is a front view showing the sliding unit incorporated in the above-mentioned ventilation device. FIG. 3 is a plan view showing a temperature-sensitive actuator, an actuating plate, and a cam mechanism of the sliding unit. FIG. 4 is an enlarged sectional view taken along the line IX-IX in FIG. 3; FIG. 2 is an enlarged cross-sectional view of a main part of a ventilator according to a second embodiment of the present invention, showing a state in which the operating plate is in a fully open position when the temperature is high. Some components have been omitted in this figure for simplicity. FIG. 10A is a view corresponding to FIG. 10A showing a state in which the actuating plate is at the 1/3 open position when the temperature is low. FIG. 7 is an exploded side sectional view showing a slider, an engagement block, and a moving block of the sliding unit in the ventilation device according to the second embodiment. It is a sectional side view showing the same slider, engagement block, and moving block in an assembled state. FIG. 7 is an exploded front view showing an engagement block, a moving block, and an engagement protrusion of an actuating plate in the ventilation device according to the second embodiment. It is a front view showing an engagement block, a moving block, and an engagement protrusion of an actuating plate in an assembled state.

Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a sash window that is fitted into an opening in a wall of a building. The sash window includes a vertically long rectangular frame 1, four middle bars 2a to 2d built into the frame 1 and arranged in order from the top, and an upper glass plate 3a arranged between the middle bars 2a and 2b. It includes a lower glass plate 3b arranged between the middle crosspieces 2c and 2d.
Ventilation parts 4 having the same configuration are incorporated between the upper frame part of the frame 1 and the middle crosspiece 2a, between the middle crosspieces 2b and 2c, and between the middle crosspiece 2d and the lower frame part of the frame 1. .

As shown in FIG. 2, the ventilation section 4 includes an extruded molded material (hereinafter simply referred to as molded material) 5 having an internal space that connects the outdoors and the indoor space. A filter 6 made of punched metal is provided on the outdoor side of the profile 5, and a ventilation device 7 according to the present invention is housed in the indoor side of the profile 5.

As shown in FIG. 3, the ventilation device 7 includes an elongated device main body 10 that extends horizontally from side to side. The main part of the device main body 10 is made of an aluminum alloy molded material. As shown in FIGS. 4 and 5, the device main body 10 includes an upper wall 11, a lower wall 12, and a vertical partition wall 13 connecting the intermediate portions of the upper wall 11 and the lower wall 12. The outdoor side portions of the upper wall 11 and the lower wall 12 and the partition wall 13 form an outdoor space 15 in which the outdoor side is open. An open indoor space 16 is formed. A plurality of ventilation holes 14 are formed in the partition wall 13 and are arranged in the longitudinal direction.

Note that the indoor space 16 of the device main body 10 is covered by a cover plate 8 (shown only in FIGS. 1 and 2) that is detachably attached to the device main body 10. A large number of vertically elongated ventilation holes 8a are formed in the cover 8 in a row.

As shown in FIGS. 4 and 5, the ventilation device 7 includes an actuation plate 20 that extends in the longitudinal direction of the device main body 10. As shown in FIGS. The actuating plate 20 is also made of a shaped material made of aluminum alloy, and is arranged in the outdoor space 15 (that is, on the outdoor side of the partition wall 13). The actuating plate 20 has a shaft portion 21 at its upper edge (one side edge in the width direction). The device main body 10 has a bearing portion 17 at the intersection of the upper wall 11 and the partition wall 13. The shaft portion 21 of the actuating plate 20 is accommodated in the bearing portion 17, so that the actuating plate 20 is supported so as to be slidable in the longitudinal direction and rotatable in directions toward and away from the partition wall 13. .

A packing 30 is attached to the indoor side surface of the actuating plate 20 to surround an area of the partition wall 13 corresponding to the area where the plurality of ventilation holes 14 are formed.
L-shaped holding pieces 22 and 23 are formed on the outdoor side surface of the actuating plate 20 and are vertically separated, and a sound absorbing pad 35 is housed between these holding pieces 22 and 23. A protruding piece 24 that protrudes toward the outdoor side is formed at the tip edge of the upper holding piece 22, and an abutment member 62, which will be described later, is fixed to this protruding piece 24.

The ventilation device 7 has a function of automatically controlling the opening and closing of the actuating plate 20 according to the temperature, a function of closing the actuating plate 20 by outdoor wind pressure even if the actuating plate 20 is in an open state, and a function of manually forcibly closing the actuating plate 20. It has a function. The details will be explained below.

As shown in FIGS. 3 and 4, a sliding unit 40 is housed in the indoor space 16 of the device main body 10 so as to be slidable in the longitudinal direction of the device main body 10 (the sliding direction of the actuating plate 20).
As shown in FIGS. 7 and 8, the sliding unit 40 includes an elongated slider 41 extending in the longitudinal direction of the device main body 10, and a resin engagement block 42 (first engagement portion) supported by the slider 41. , two shape memory alloy springs 43 (hereinafter referred to as shape memory springs) and two bias springs 44. Shape memory spring 43 and bias spring 44 are in the form of tension coil springs. One shape memory spring 43 and one bias spring 44 may be arranged.
In this embodiment, the engagement block 42, shape memory spring 43, and bias spring 44 constitute a temperature-sensitive actuator 49 that performs the functions described below.

The slider 41 has a slider body 41a made of a metal thin plate processed into a U-shaped cross section, and resin spring holders 41b and 41c fixed to both ends of the slider body 41a. A convex portion 41x that protrudes vertically is formed on the right spring holder 41b. As shown in FIG. 4, with these protrusions 41x supported by locking flanges 11a and 12a formed on the indoor side edges of the upper wall 11 and lower wall 12 of the device main body 10, the slider 41 is attached to the device. It is supported by the main body 10 so as to be slidable in the sliding direction of the actuating plate 20.

As shown in FIG. 5, protrusions 42a are formed on the upper and lower surfaces of the engagement block 42, and the protrusions 42a serve as long holes ( engagement holes ) formed in the upper and lower plates of the slider body 41a. It is inserted in 41y. The engagement hole 41y has a larger dimension in the sliding direction of the actuating plate 20 than the convex portion 42a, so that the engaging block 42 is supported so as to be slidable in the sliding direction of the actuating plate 20 with respect to the slider 41. The convex portion 42a and the elongated hole 41y are provided as regulating means for determining the stroke of the engagement block 42 with respect to the slider 41 and the left and right movement limit positions.

As shown in FIGS. 7 and 8, the shape memory spring 43 suspended between the engagement block 42 and the right spring holder 41b biases the engagement block 42 in the right direction. A bias spring 44 placed between the engagement block 42 and the left spring holder 41c biases the engagement block 42 to the left.

As shown in FIGS. 5 and 7, the engagement block 42 has a housing space 42b. On the other hand, an engagement protrusion 50 (second engagement part) is fixed to the indoor side surface of the longitudinally intermediate portion of the actuating plate 20, and this engagement protrusion 50 connects to one of the ventilation ports 14 of the partition wall 13. It passes through and enters the accommodation space 42b. Since the engagement protrusion 50 is in contact with both side surfaces of the accommodation space 42b, the engagement protrusion 50 is prohibited from moving relative to the engagement block 42 in the left and right direction (movement in the sliding direction of the actuating plate 20 and the slider 41). Relative movement in the outward direction (direction perpendicular to the sliding direction) is allowed.
The engagement block 42 and the engagement protrusion 50 constitute a connection mechanism M that connects the slider 41 and the actuating plate 20.

A spring 55 is housed in the housing space 42b of the engagement block 42. The spring 55 is made of a tension coil spring, and one end thereof is hung on the bottom of the engagement block 42, and the other end is inserted into the slit 50a of the engagement protrusion 50 and hung on the indoor end of the engagement protrusion 50. It is being The actuating plate 20 is biased in the opening direction by the spring 55.

As shown in FIGS. 4, 5, and 8, the ventilation device 7 further includes a plurality of, for example, two, cam mechanisms 60 arranged at intervals in the longitudinal direction of the device main body 10. These cam mechanisms 60 are arranged in the outdoor space 15 at a position closer to the shaft portion 21 on the outdoor side than the actuating plate 20 (in a position closer to the shaft portion 21 in the width direction of the actuating plate 20).
Each cam mechanism 60 includes a resin cam member 61 (first cam portion) fixed to the device main body 10 and a resin contact member 62 (first cam portion) as a cam follower fixed to the protrusion 24 of the actuating plate 20. 2 cam portion).

The cam member 61 has a fixing part 61a fixed to the lower surface of the upper wall 11 of the apparatus main body 10, and a hanging part 61b hanging down from the fixing part 61a. A surface of the hanging portion 61b that faces the actuating plate 20 is provided as a cam surface 61c. As shown in FIG. 8, the center portion 61x of this cam surface 61c is farthest from the actuation plate 20, the left and right end portions 61y are closest to the actuation plate 20, and the inclined portion 61z is between the center portion 61x and the left and right end portions 61y. It becomes. The central portion 61x extends linearly in the longitudinal direction of the device main body 10 and has a predetermined length. In this embodiment, only the center portion 61x, the left slope portion 61z, and the left end portion 61y are used.

As shown in FIGS. 6 and 8, a pair of notches 24a are formed in the protruding piece 24 of the actuating plate 20, and an abutting member 62 is attached to the remaining portion of the protruding piece 24 between these notches 24a. There is. The notch 24a is formed to avoid interference with the cam member 61.
Since the actuating plate 20 is biased in the opening direction by the spring 55, the contact member 62 is in contact with the cam surface 61c of the cam member 61 by the force of the spring 55.
The tip edge of the abutting member 62 extends linearly in the longitudinal direction of the actuating plate 20. The longitudinal dimension of the contact member 62 is approximately equal to the longitudinal dimension of the central portion 61x of the cam surface 61c. The cross-sectional shape of the tip edge of the abutting member 62 is an arc.

As shown in FIGS. 3 and 9, the ventilation device 7 further includes a manual operation mechanism 70 provided at the left end of the device main body 10. Specifically, one end of a link 71 is connected to the spring holder 41c on the left side of the sliding unit 40, and an operating lever 72 (operating member) is rotatably connected to the other end of the link 71.

On the other hand, a holder 75 is fixed to the device main body 10. The holder 75 has a support hole 75a formed approximately in the center, a finger insertion recess 75b formed on the left, and a spring holding portion 75c formed on the right. A chevron-shaped plate spring 76 is attached to the spring holding portion 75c. Two recesses 71a and 71b are formed in the link 71 to receive the central top of the leaf spring 76.

The operation lever 72 is exposed to the indoor side through a support hole 75a of the holder 75, and is supported so as to be rotatable between an open operation position and a close operation position around the support hole 75a. In the open operating position, the operating lever 72 is tilted down along the operating body 10, as shown in FIG. When a finger is inserted into the finger insertion recess 75b of the holder 75 and hooked onto the operating lever 72, and the operating lever 72 is pulled up as shown by arrow A, the operating lever 72 reaches the closed operating position. During this process, the connecting portion between the operating lever 72 and the link 71 moves to the left as shown by arrow B, and the sliding unit 40 accordingly slides to the left.

The open operating position and the closed operating position of the operating lever 72 are maintained by the top of the leaf spring 76 selectively fitting into the recesses 71a and 71b of the link 71.
As shown in FIG. 1, the cover plate 8 is formed with an operation hole 8b through which the operation lever 72 is exposed.

The operation of the ventilation device 7 having the above configuration will be explained.
When the operating lever 72 of the manual operating mechanism 70 is in the open operating position shown in FIG. 9, the slider 41 of the sliding unit 40 is located at the rightmost position. In this position, the temperature-sensitive actuator 49 automatically controls the opening and closing of the actuating plate 20 according to the temperature.

When the temperature is high, the elastic force of the shape memory spring 43 is strong, so the engagement block 42 is located at the rightmost position with respect to the slider 41. Further rightward movement of the engagement block 42 is restricted by the convex portion 42a of the engagement block 42 coming into contact with the right end of the elongated hole 41y of the slider body 41a.
As described above, when the slider 41 is located at the rightmost position with respect to the device main body 10 and the engagement block 42 is located at the rightmost position with respect to the slider 41, the actuating plate is biased in the opening direction by the spring 55. The 20 contact members 62 are in contact with the center portion 61x of the cam surface 61c of the cam member 61, as shown in FIG. 4A. As a result, the actuating plate 20 is in the fully open position farthest from the partition wall 13.

When the temperature drops below, for example, 18° C., the elastic force of the shape memory spring 43 weakens, and the force of the bias spring 44 becomes relatively strong compared to the shape memory spring 43, so that the engagement block 42 moves toward the slider 41. Slide to the left. As the engagement block 42 slides, the actuation plate 20 slides in the same direction through the engagement between the engagement block 42 and the engagement protrusion 50. As the actuating plate 20 slides, the abutting member 62 moves from the central portion 61x of the cam surface 61c to the inclined portion 61z. The lower the temperature is, the more the contact member 62 moves to the left while contacting the inclined portion 61z. Therefore, the actuating plate 20 gradually approaches the partition wall 13 and its opening degree decreases.

When the temperature further decreases to, for example, 12° C., the contact member 62 is located in the middle of the inclined portion 61z, and the opening degree of the actuating plate 20 reaches 1/3 of the fully opened position as shown in FIG. 4B. . At this time, since the convex portion 42a of the engagement block 42 is locked to the left end of the long hole 41y of the slider body 41a, further leftward sliding of the engagement block 42 is prevented even if the temperature drops further below 12°C. Therefore, the operating plate 20 does not reach the position where the ventilation port 14 is completely closed (fully closed position), but is maintained at 1/3 of the opening degree.

As described above, when the actuating plate 20 is automatically opened/closed in accordance with the temperature and strong wind pressure is applied to the actuating plate 20 from outside, the actuating plate 20 moves in the closing direction against the force of the spring 55. Rotate to. As a result, the actuating plate 20 reaches the fully closed position shown in FIG. 5B from the fully open position shown in FIG. 5A or the opening position according to the temperature, and the packing 30 comes into contact with the partition wall 13 to completely close the ventilation port 14. block. This makes it possible to prevent wind and rain from entering the room even when the occupant is away. It also prevents excessive ventilation during strong winds.

During the closing operation of the actuation plate 20 due to wind pressure, the abutting member 62 separates from the cam surface 61c of the cam member 61, so the cam mechanism 60 does not interfere with the closing operation of the actuation plate 20.
Even if the actuating plate 20 strongly hits the partition wall 13, the impact sound can be absorbed by the sound absorbing pad 35 provided on the actuating plate 20.

The occupant can also manually close the actuating plate 20 when operating the air conditioner to adjust the room temperature or when there is a storm. More specifically, the operator raises the operating lever 72 of the manual operating mechanism 70 and closes the operating lever 72 to the operating position. This causes the slider 41 to slide to the left by a predetermined distance. During this sliding, the right end of the elongated hole 41y of the slider main body 41a hits the convex portion 42a of the engagement block 42, so that the engagement block 42 moves to the left together with the slider 41. The sliding distance of the slider 41 is slightly longer than the distance from the left end of the center portion 61x of the cam surface 61c to the left end 61y. As a result, even when the actuating plate 20 is in the fully open position (that is, even when the temperature is high, the engagement block 42 is located at the rightmost position, and the abutment member 62 is located at the center portion 61x of the cam surface 61c) , the contact member 62 can be reliably moved to the left end 61y of the cam surface 61c, and the actuating plate 20 can be brought to the fully closed position.

Note that when the temperature is low, for example, when the engagement block 42 is located at the leftmost position with respect to the slider 41 and the abutting member 62 is located at the inclined part 61z of the cam surface 61c (when the actuating plate 20 is in the 1/3 open position) When the lever 72 is closed to the operating position, the right end of the elongated hole 41y of the slider body 41a hits the convex portion 42a of the engagement block 42 during the slide of the slider 41. The actuating plate 20 can be moved to the left along with the actuating plate 20, and the actuating plate 20 can be brought to the fully closed position in the same manner as described above.

Next, a second embodiment of the present invention will be described with reference to FIGS. 10 to 14. In the second embodiment, constituent parts corresponding to those in the first embodiment are not shown or are given the same numbers in the figures, and detailed explanation thereof will be omitted. In the description of components not shown in FIGS. 10 to 14, the same reference numerals as in the first embodiment are used.

In this embodiment, the sliding unit 40A includes a slider 41, a moving block 45 (moving member) provided on the slider 41, an engaging block 47 (first engaging portion), a shape memory spring 43, and a bias spring 44. has been done.

The moving block 45 is supported by the slider body 41a so as to be slidable along its longitudinal direction. The moving block 45 has a pair of left and right side plates 45a, and a bridge portion 45b that connects the pair of side plates 45a at upper and lower ends. The moving block 45 has a vertically long rectangular hollow frame shape when viewed from the front. As shown in FIG. 13, a hook 45c on which one end of the shape memory spring 43 is hung is formed on the outer surface of the right side plate 45a, and a hook 45c on which one end of the bias spring 44 is coupled is formed on the outer surface of the left side plate 45a. A portion 45d is formed.

A cam member 81 (third cam portion) extending in the left-right direction is installed between the inner surfaces of the intermediate portions of the pair of side plates 45a. The upper surface of this cam member 81 is provided as a cam surface 81a. The cam surface 81a has a lowermost portion 81x on the left side that extends horizontally, an inclined portion 81y that extends diagonally upward and continues to the right end of the lowermost portion 81x, and an uppermost portion 81z that continues to the right end of the inclined portion 81y. There is.

The engagement block 47 has a pair of left and right side plates 47a and upper and lower plates 47b, has a vertically long rectangular hollow frame shape when viewed from the front, and has a housing space 47c.
The engagement block 47 has a protrusion 47d on its upper and lower surfaces, and the protrusion 47d fits into the engagement hole 41z of the slider body 41a. In this embodiment, since the convex portion 47d and the engagement hole 41z have substantially the same size, the engagement block 47 is immovably fixed to the slider body 41a.

The engagement block 47 is narrower than the moving block 45 and is accommodated in the internal space of the moving block 45. The sliding stroke of the moving block 45 is restricted by the left and right side plates 45a of the moving block 45 coming into contact with the left and right side plates 47a of the engagement block 47 fixed to the slider body 41a.
A side plate 47a of the engagement block 47 is formed with a recess 47e for passing the cam member 81 therethrough.
A pin 47g on which the lower end of the spring 55 is hung is attached to the lower plate 47b of the engagement block 47.

The engagement protrusion 51 (second engagement part) fixed to the indoor side surface of the actuating plate 20 is accommodated in the accommodation space 47c of the engagement block 47, so that the engagement protrusion 51 is attached to the engagement block 47. Relative movement in the left-right direction (slide direction) is prohibited, but relative movement in the direction orthogonal to the slide direction is permitted.
A pin 51a, on which the upper end of the spring 55 is hung, is attached to the end of the engagement protrusion 51 on the indoor side.

The lower surface of the indoor side portion of the engagement protrusion 51 is provided as a contact portion 82 (fourth cam portion) that contacts the cam surface 81a of the cam member 81 of the moving block 45. The cam member 81 and the contact portion 82 constitute a second cam mechanism 80.
In this embodiment, the moving block 45, the shape memory spring 43, the bias spring 44, and the second cam mechanism 80 constitute a temperature-sensitive actuator.

In the above configuration, when the operating lever 72 of the manual operating mechanism 70 is in the open operating position shown in FIG. 9, the slider 41 of the sliding unit 40 is located at the rightmost position. In this state, the contact portion 62 of the cam mechanism 60 is in a position facing the center portion 61x of the cam surface 61a. The contact portion 62 may be in contact with the center portion 61x, or may be opposed to the center portion 61x with a slight distance therebetween.

When the temperature is high, the elastic force of the shape memory spring 43 on the right side is strong, so the moving block 45 is located at the rightmost position with respect to the slider 41. Further rightward movement of the moving block 45 is restricted by the left side plate 45a of the moving block 45 hitting the engagement block 47.
When the moving block 45 is located at the rightmost position with respect to the slider 41, the contact portion 82 of the engagement protrusion 51 of the actuating plate 20, which is biased in the opening direction by the spring 55, is shown in FIGS. 10A and 14. The lowermost portion 81x of the cam surface 81a of the cam member 81 is in contact with the lowermost portion 81x. As a result, the actuating plate 20 is in the fully open position farthest from the partition wall 13.

When the temperature drops below, for example, 18°C, the elastic force of the shape memory spring 43 weakens, and the force of the bias spring 44 becomes relatively strong compared to the shape memory spring 43, so that the movable block 45 moves against the slider 41. and slide to the left. As the moving block 45 slides, the contact portion 82 of the engagement protrusion 51 moves from the lowest portion 81x of the cam surface 81a to the inclined portion 81y. As the temperature decreases, the contact portion 82 moves further to the right relative to the cam surface 81a while contacting the inclined portion 81y. As a result, the contact portion 82 is pushed up by the cam surface 81a, the actuating plate 20 gradually rotates toward the partition wall 13, and its opening degree decreases. As the actuation plate 20 rotates, the contact portion 62 moves in a direction away from the cam surface 61a.

When the temperature further decreases to, for example, 12° C., the contact portion 82 reaches the uppermost portion 81z of the cam surface 81a, and the opening degree of the actuating plate 20 reaches the ⅓ open position as shown in FIG. 10B. At this time, the right side plate 45a of the moving block 45 hits the engagement block 47, so even if the temperature drops further below 12°C, further leftward sliding of the moving block 45 is prevented, and the actuating plate 20 closes the ventilation port 14. It does not reach the completely closed position (fully closed position) and is maintained at 1/3 opening.

In this embodiment, as described above, the opening degree of the actuating plate 20 can be automatically controlled simply by rotating the actuating plate 20 without sliding the actuating plate 20, so the burden on the temperature-sensitive actuator is reduced. can be reduced.

The fully closing operation of the actuating plate 20 during strong winds is the same as in the first embodiment, so the explanation will be omitted.
The operation of forcibly closing the actuating plate 20 using the operating lever 72 is similar to that in the first embodiment. However, in this embodiment, the slider 41 and the actuating plate 20 are connected through the engagement block 47 and the engaging protrusion 51 so as to be immovable relative to each other in the sliding direction. Even in the open position, the actuating plate 20 can be slid at the same time as the slider 41 is slid.

The present invention is not limited to the above-described embodiments, and various embodiments are possible.
The function of automatically controlling the opening and closing of the operating plate depending on the temperature may be omitted. For example, in the first embodiment , the shape memory spring and the bias spring may be omitted, and the engagement block (first engagement portion) may be fixed at a predetermined position on the slider. In this case, the manual operating mechanism can directly adjust the sliding position of the actuating plate via the slider and the connecting mechanism, and can finely control the opening degree of the actuating plate.
The operating member of the manual operating mechanism may be configured to slide with respect to the device body .
When using a temperature sensitive actuator, the actuating plate may be fully closed when the temperature is low.
In the cam mechanism, a cam member (second cam member) having a cam surface facing outdoors may be provided on the actuating plate, and a contact member (first cam member) that contacts the cam surface may be provided on the main body of the device.
The ventilation system of the present invention can be incorporated not only into sash windows that are fitted, but also into sash windows that can be opened and closed, and sliding sash doors.

INDUSTRIAL APPLICABILITY The present invention can be applied to a ventilation device that can be automatically closed during strong winds and can be opened and closed manually.

7 Ventilation device 10 Device body 13 Partition wall 14 Ventilation port 20 Actuation plate 21 Shaft portion 41 Slider 42 Engagement block (first engagement portion)
42b Accommodation space 43 Shape memory alloy spring 44 Bias spring 45 Moving block (moving member)
47 Engagement block (first engagement part)
47c Accommodation space 49 Temperature sensitive actuator 50, 51 Engagement protrusion (second engagement part)
55 Spring 60 Cam mechanism 61 Cam member (first cam part)
61c Cam surface 62 Contact member (second cam part)
70 Manual operation mechanism 80 Second cam mechanism 81 Cam member (third cam part)
81a Cam surface 82 Contact part (fourth cam part)
M connection mechanism

Claims (10)

a device body having a partition wall with a ventilation hole formed therein;
an actuating plate that is disposed on the outdoor side of the partition wall, has a shaft portion that is rotatably and slidably supported by the device main body, and opens and closes the ventilation hole as it rotates;
a cam mechanism disposed on the outdoor side of the actuation plate and rotating the actuation plate as the actuation plate slides;
a slider supported by the device main body so as to be slidable in the sliding direction of the actuating plate;
a connection mechanism that connects the actuation plate and the slider to allow rotation of the actuation plate;
a manual operation mechanism that is provided on the device main body and is connected to the slider, and that slides the slider by manual operation and further slides the actuation plate via the connection mechanism;
a spring that biases the actuating plate in the opening direction;
Equipped with
The cam mechanism has a first cam part provided on the device main body and a second cam part provided on the actuation plate,
The second cam part is arranged to face the first cam part on the indoor side, and is separated from the first cam part when the actuation plate rotates in the closing direction against the spring due to wind pressure. Ventilation device characterized by moving in the direction. The connecting mechanism includes a first engaging part disposed on the slider and a second engaging part protruding from the actuating plate toward the interior of the room, the first engaging part and the second engaging part. 2. The ventilation device according to claim 1, wherein the actuating plate is connected to be movable relative to the direction perpendicular to the sliding direction of the actuating plate and not to be relatively movable in the sliding direction. 3. The ventilation device according to claim 2, wherein the spring is disposed between the first engagement part and the second engagement part. The first engaging part has a housing space, into which the second engaging part is inserted and the spring is housed, the spring is a tension coil spring, and one end thereof is connected to the first engaging part. 4. The ventilation device according to claim 3, wherein the ventilation device is hung on the joint part, and the other end is hung on the second engaging part. The first cam portion has a cam surface that faces the actuation plate, and the second cam portion includes a contact portion that protrudes toward the outside from the actuation plate and comes into contact with the cam surface. The ventilation device according to claim 2. 3. The ventilation device according to claim 2, wherein the cam mechanism is located near the shaft. The first engaging portion is configured by an engaging block that is separate from the slider, and the engaging block is supported by the slider so as to be slidable in the sliding direction,
Furthermore, the slider is provided with a shape memory alloy spring and a bias spring that bias the engagement block in opposite directions along the sliding direction,
The ventilation device according to any one of claims 2 to 6, wherein the engagement block, the shape memory alloy spring, and the bias spring constitute a temperature-sensitive actuator. 7. The first engaging portion is fixed to the slider, and the connecting mechanism connects the actuating plate and the slider so that they cannot move relative to each other in the sliding direction. Ventilation equipment described in Crab. Furthermore, it is equipped with a temperature-sensitive actuator, and this temperature-sensitive actuator
a moving member supported by the slider so as to be slidable in the sliding direction;
a shape memory alloy spring and a bias spring that are provided on the slider and bias the moving member in opposite directions along the sliding direction;
a second cam mechanism that rotates the actuation plate as the moving member slides;
has
The second cam mechanism includes a third cam part provided on the moving member and a fourth cam part provided on the actuating plate, and the fourth cam part is moved to the third cam part by the force of the spring. The ventilation device according to claim 8, wherein the ventilation device is in contact with the cam portion. The movable member has a hollow frame shape, and the first engaging portion is disposed in an internal space of the movable member,
The third cam portion has a cam surface extending in the sliding direction across the first engaging portion,
10. The ventilation device according to claim 9, wherein the fourth cam part is constituted by a contact part formed on the second engaging part and in contact with a cam surface of the third cam part.

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