JP5032795B2 - Natural ventilation structure - Google Patents

Description

  The present invention relates to a natural ventilation structure.

It has been a common practice to ventilate a room by natural ventilation due to a temperature difference between the room and the outside by opening a sliding sash window with a sash window provided at the opening of the building.
JP 2003-227277 A

  However, this method has a drawback that natural ventilation as described above cannot be performed from the viewpoint of crime prevention and rain prevention when absent or at bedtime.

  In view of the above problems, the present invention performs effective natural ventilation due to temperature difference between indoors and outdoors without causing crime and rain prevention problems even when absent or at bedtime. The objective is to provide a natural ventilation structure that can be used.

The above-mentioned problem is that a vertical slit-like natural ventilation port is provided in the vertical frame portion of the sash frame, and intake and exhaust are simultaneously performed at the natural ventilation port due to a temperature difference between the room and the outside,
An outdoor side opening / closing material that opens and closes the slit-like natural ventilation port from the outdoor side, and an indoor side opening / closing material that opens and closes the slit-like natural ventilation port from the indoor side. Is designed to open and close the slit-like natural ventilation port in conjunction with the interlocking mechanism, and
The outdoor side opening / closing material has a non-perforated lid portion, and when the lid portion advances to the outdoor side, a ventilation ventilation portion facing sideways is formed between the lid portion and the slit-like natural ventilation port. The vent is opened, and the lid is retracted so that the vent is closed by the lid,
The indoor side opening / closing material has a non-perforated lid portion, and when the lid portion advances to the indoor side, a ventilation ventilation portion facing sideways is formed between the lid portion and the slit-like natural ventilation port. This is solved by a natural ventilation structure characterized in that the ventilation opening is opened and the ventilation part is closed by the lid part by retreating the lid part (first invention).

  In this natural ventilation structure, effective natural ventilation is performed due to a temperature difference between the room and the outside by means of a vertically elongated natural ventilation opening provided in the vertical frame portion of the sash frame. And, since the vertically ventilated natural ventilation port is provided in the vertical frame part of the sash frame in this way, such natural ventilation can be performed even when the sash shoji is closed, Will not be generated.

  In addition, the slit-like natural ventilation opening is opened and closed by an outdoor side opening / closing material and an indoor side opening / closing material, but the outdoor side opening / closing material has a non-porous lid portion, and the lid portion advances to the outdoor side. Since the ventilation portion for ventilation is formed between the lid portion and the slit-like natural ventilation port so as to open the ventilation port, the non-porous lid portion of the outdoor side opening and closing material The ventilation part facing sideways allows natural ventilation while preventing rain from entering the ventilation port, and the ventilation hole is closed by the lid part when the non-porous lid is retracted. Therefore, it is possible to prevent rain and wind from entering when the slit-like natural ventilation opening is closed.

  In addition, the slit-like natural ventilation opening is hidden by the non-perforated lid of the outdoor-side opening / closing material, whether it is opened or closed by the outdoor-side opening / closing material, so that it is viewed from the outside. The appearance can be refreshed.

  In addition, the slit-like natural ventilation opening is closed with an outdoor side opening and closing material from the outdoor side and closed with an indoor side opening and closing material from the indoor side. By the air layer formed between the materials, the heat insulating performance of the ventilation port portion in a closed state can be increased.

  Furthermore, the indoor side opening / closing material also has a non-perforated lid portion, and when the lid portion advances to the indoor side, a ventilating portion for ventilation facing sideways is formed between the lid portion and the ventilation opening, thereby ventilating. Since the mouth is opened, the feeling of airflow due to ventilation in the room can be reduced. In addition, even if the slit-like natural ventilation opening is opened or closed by the indoor side opening / closing material, the slit-like natural ventilation opening is concealed by the non-porous lid of the indoor side opening / closing material, The slit-like natural ventilation port part seen can be made a clean appearance.

  In the natural ventilation structure according to the first aspect of the invention, the interlocking mechanism connects both the open / close material in the opening / closing direction with the guide mechanism that guides both the open / close material on the outdoor side and the indoor side, and performs an open / close operation linked to both open / close materials. It is preferable that the interlock mechanism is provided at a plurality of locations in the vertical direction in the slit-like natural ventilation port (second invention).

  In this case, the guide mechanism and the link mechanism can smooth the forward / backward movement of both opening / closing materials in the indoor / outdoor direction, that is, the front / rear direction, and the use of the guide mechanism also simplifies the link mechanism that links both the opening / closing materials. A simple mechanism can be adopted, and it can be compactly incorporated into a narrow natural ventilation opening. In addition, since the interlocking mechanism is provided at a plurality of locations in the vertical direction in the slit-like natural ventilation port, both the opening and closing materials can be stably and smoothly advanced and retracted.

In the natural ventilation structure of the second invention,
The guide mechanism
A cam groove for an indoor side opening / closing material and a cam groove for an outdoor side opening / closing material provided on the vertical frame portion of the sash frame and provided with an inclined cam groove portion;
Provided on each open / close material on the outdoor side and indoor side, and provided with a pin movably engaged with the corresponding cam groove, and a force in the vertical direction is applied to each open / close material, the pin is guided to the inclined cam groove portion. The opening and closing material moves diagonally up and down to open and close the slit-like natural ventilation opening,
Link mechanism
Between the outdoor side and indoor side opening and closing materials, the middle part is pivotally attached to the vertical frame portion of the sash frame, and both sides sandwiching the pivoting part are provided so as to move up and down on the side of each opening and closing material. A link provided with a bifurcated slide part in the part;
A pin provided on each of the outdoor-side and indoor-side opening / closing members and movably engaged with the bifurcated slide portion of the link, and the link rotates by applying a vertical force to the indoor-side opening / closing material. And open and close the open / close material on the outdoor side, and
The indoor opening / closing member may be provided with a clue for applying a force in the vertical direction (third invention).

  In this case, both the outdoor side and indoor side opening / closing materials can be opened and closed in conjunction with one link, and one link mechanism can have only one link, and the link mechanism can be simplified. The movement can be made smooth, the guide mechanism can be simplified by using the cam groove, and the slit-like natural ventilation port can be opened and closed smoothly by a simple interlocking mechanism.

  In addition, the slit-shaped natural ventilation opening is opened and closed by applying a vertical force to the clue portion of the indoor side opening and closing member to open and close, and the opening and closing operation is easier than in the case of the push-pull operation in the front-rear direction.

  In the third aspect of the invention, the cam groove for the indoor side opening / closing material and / or the cam groove for the outdoor side opening / closing material includes a vertical cam groove portion communicating with the upper end side and / or the lower end side of the inclined cam groove portion. Alternatively, when the pin is positioned in the vertical cam groove in the closed position (fourth invention), the opening / closing operation is performed even if an unexpected force in the front-rear direction is applied to the opening / closing material in the open position and / or the closed position. Is not performed, and the open position and / or the closed position can be maintained, and the opening / closing material can be prevented from operating erroneously.

  Since the present invention is as described above, natural ventilation can be performed due to a temperature difference between indoors and outdoors without causing problems in crime prevention and rain prevention even when absent or at bedtime. Moreover, the heat insulation performance of the ventilation port portion with the natural ventilation port closed can be improved. In addition, the air flow feeling due to ventilation can be relaxed indoors, and the appearance of the slit-like natural ventilation port seen from the indoor side or the outdoor side is made clear and hidden with a non-porous lid. can do.

  Next, the best mode for carrying out the present invention will be described with reference to the drawings.

  The natural ventilation structure of the first embodiment is provided in the left and right vertical frame portions of the sliding waist high sash window 10 as shown in FIG. 1 is provided in the vertical frame of the sash frame, or is provided in the attached vertical frames 11 and 11 which are fixed to the vertical frame between the vertical frame of the sash frame and the shoji 20, as shown in FIG. As shown in FIG. 4, intake and exhaust are simultaneously performed at each natural ventilation port 1 due to a temperature difference between the room 6 and the outdoor 5.

  As shown in FIGS. 1 to 4, each slit-like natural ventilation port 1 includes an outdoor-side opening / closing material 2 that opens and closes the slit-like natural ventilation port 1 from the outdoor 5 side, and the slit-like natural ventilation port 1. The indoor side opening / closing material 3 that opens and closes from the indoor 6 side is provided, and the outdoor side opening / closing material 2 and the indoor side opening / closing material 3 open and close the slit-shaped natural ventilation opening 1 by interlocking with the upper and lower interlocking mechanisms 4, 4. It is made like that.

  As shown in FIG. 1, the outdoor side opening / closing member 2 is connected to a lid plate portion 2a as a non-porous lid portion for closing the slit-like natural ventilation port 1 from the outdoor 5 side, and both sides of the lid plate portion 2a. It is made of a U-shaped cross-sectional view with side plate portions 2b, 2b, and is fitted to the slit-like natural ventilation port 1 from the opposite side to the lid plate portion 2a in the outdoor 5 so as to be able to advance and retreat. It is made to be able to.

  Each side plate portion 2b, 2b is provided with a large number of ventilation openings 2c in the vertical direction as ventilation ventilation portions, and as shown in FIG. By being in the state, the outdoor side opening of the slit-like natural ventilation port 1 is closed and closed by the cover plate part 2a, and as shown in FIG. The parts 2b and 2b are exposed to the outdoors 5, and ventilation openings 2c are provided to form a ventilation part facing the side.

  In addition, the lid plate portion 2a is provided with flange portions 2d and 2d protruding outward from the both side plate portions 2b and 2b, and the side of the attached vertical frame 11 is airtight so as to correspond to the flange portion 2d. Gaskets 9 and 9 are attached, and the lid 2d closes the opening on the outdoor 5 side of the slit-like natural vent 1 so that the flange 2d comes into contact with the gasket 9 in an airtight state. Yes.

  On the other hand, the indoor side opening / closing member 3 is similarly a lid plate portion 3a as a non-porous lid portion that closes the slit-like natural ventilation port 1 from the indoor 6 side, and side plate portions 3b connected to both side portions of the lid plate portion 3a, 3b and a back plate portion 3e. The room 6 can be fitted into the ventilation port 1 from the side opposite to the lid plate portion 3a so as to advance and retract.

  In each side plate portion 3b, 3b, a large number of ventilation openings 3c... As ventilation vents are arranged in the vertical direction, and as shown in FIG. As a result, the indoor opening of the ventilation opening 1 is closed and closed by the lid plate portion 3a, and as shown in FIG. 3b and 3b are exposed in the room, and ventilation openings 3c are provided to form ventilation ventilation sections facing sideways. The back plate portion 3e is also provided with a plurality of vent openings 3f in the vertical direction although not shown, and is surrounded by the cover plate portion 3a, the side plate portions 3b, and the back plate portion 3e. A filter 8 is provided inside.

  Further, the lid plate portion 3a is provided with flange portions 3d and 3d protruding outward from the both side plate portions 3b and 3b, and on the side of the attached vertical frame 11 so as to correspond to the flange portions 3d and 3d. The airtight gaskets 9 and 9 are attached, and the lid 3d closes the opening on the indoor 6 side of the slit-like natural vent 1 so that the flange 3d contacts the gasket 9 in an airtight state. Has been made.

  The interlocking mechanisms 4 and 4 open the other when the outdoor side opening / closing material 2 or the indoor side opening / closing material 3 is opened, and close the other when the other is closed. The interlocking mechanism 4 includes a guide mechanism 12 that guides both the open / close members 2 and 3 on the outdoor side and the indoor side in the open / close direction, and the open / close members 2 and 3. The link mechanism 13 which connects and makes the both opening-and-closing materials 2 and 3 perform the interlocking | opening-closing operation | movement is comprised.

  As shown in FIGS. 1 and 3, the guide mechanism 12 includes rollers 14 provided on the outer surface portions of the left and right side plate portions 2b and 3b of the opening and closing members 2 and 3, and the rollers 14 in the indoor and outdoor directions. The upper and lower horizontal rails 15 and 15 are guided in the front-rear direction, and the upper and lower horizontal rails 15 and 15 allow the opening / closing members 2 and 3 to advance and retreat in the front-rear direction without back-and-forth movement. It is made to be able to.

  The link mechanism 13 is provided at the center position between the left and right side plates of the opening / closing members 2 and 3, and includes a first link 16 at the center and second links 17 and 17 at the front and rear. Is pivotally attached to a horizontal shaft 18 whose center in the longitudinal direction faces the left and right direction, and the front and rear second links 17 and 17 have the same length, and one end of each of them is connected to both ends of the first link 16. It is pivotally attached so that it can rotate around a horizontal axis, and the other end of each second link 17, 17 is pivotally attached to both side plates 2 b, 3 b of each opening / closing member 2, 3 so that it can rotate around a horizontal axis. Thus, as shown in FIGS. 3 and 4, when one opening / closing member is moved back and forth in the front-rear direction, the other opening / closing member moves back and forth in the front-rear direction, and slit-like natural ventilation is performed. The mouth 1 is opened and closed. The horizontal shaft body 18 is attached to the side of the attached vertical frame 11.

  Reference numeral 19 denotes a coil spring that urges both the outdoor and indoor opening and closing members 2 and 3 to open. The opening / closing operation of these opening / closing materials 2 and 3 may be performed electrically, may be performed by a wax cylinder, a shape memory spring, or the like, or may be manually opened / closed. May have been made.

  In the above-described natural ventilation structure, natural ventilation is performed due to a temperature difference between the indoor 6 and the outdoor 5 by opening the vertical slit-shaped natural ventilation opening 1, and the slit-shaped natural ventilation opening 1 Since it is provided in the attached vertical frame 11 of the sash window 10, such natural ventilation can be performed in a state where the sash shoji 20 is closed, and no problem in crime prevention is caused.

  The slit-like natural ventilation opening 1 is opened and closed by an outdoor-side opening / closing material 2 and an indoor-side opening / closing material 3, and the outdoor-side opening / closing material 2 includes a non-porous lid plate portion 2a. Since the vent opening 2c of the side plate portion 2b is exposed to the outside and the ventilation opening 1 is opened by the advancing to the outdoor 5 side, there is no need for the outdoor side opening / closing material 2 Natural ventilation can be performed while preventing intrusion of rain into the ventilation opening 1 by the cover plate portion 2a of the hole and the ventilation openings 2c facing the side. In addition, since the vent hole 1 is closed by the lid plate portion 2a when the non-porous lid plate portion 2a is retracted, the invasion of rain and wind with the slit-like natural ventilation port 1 closed is also ensured. Can be prevented.

  Moreover, the slit-like natural ventilation opening 1 is viewed from the outdoor 5 by being hidden by the non-perforated lid plate portion 2a of the outdoor-side opening / closing member 2 regardless of whether it is opened or closed by the outdoor-side opening / closing member 2. The slit-like natural ventilation port can be made to have a clean appearance.

  In addition, the slit-like natural ventilation opening 1 is closed by the outdoor side opening / closing material 2 from the outdoor 5 side and closed by the indoor side opening / closing material 3 from the indoor 6 side. The air layer formed between the material 2 and the indoor side opening / closing material 3 can enhance the heat insulating performance of the ventilation port portion in the closed state.

  In particular, in the present embodiment, the flange portions 2d, 3d and the gaskets 9 are provided, and the lid plate portions 2a, 3a of the opening / closing materials 2, 3 are configured to close the slit-like natural ventilation port 1 in an airtight state. Therefore, high heat insulation performance can be exhibited.

  Furthermore, the indoor side opening / closing member 3 also has a non-porous lid plate portion 3a, and the lid plate portion 3a advances to the indoor 6 side so that the side plate between the lid plate portion 3a and the slit-like natural ventilation port 1 is lateral. Since the ventilating part 3c for ventilation facing is formed and the slit-like natural ventilation opening 1 is opened, the feeling of airflow due to ventilation in the room 6 can be relieved, and the slit-like natural ventilation Regardless of whether the mouth 1 is opened or closed by the indoor side opening / closing material 3, the slit-like natural ventilation port 1 is hidden by the non-porous cover plate portion 3 a of the indoor side opening / closing material 3, thereby The slit-like natural ventilation port part seen from can be made a clean appearance.

  Since the interlocking mechanism 4 is composed of the guide mechanism 12 and the link mechanism 13, the forward / backward movement of the both opening / closing materials 2 and 3 in the indoor / outdoor direction, that is, the front / rear direction can be made smooth. As a result, the link mechanism 13 that interlocks both the opening and closing materials 2 and 3 can also employ a simple mechanism consisting of three links 16, 17, and 17 and is compact in a narrow natural ventilation opening. Since the two interlocking mechanisms 4 and 4 are provided above and below the slit-like natural ventilation opening 1, both the opening and closing materials 2 and 3 can perform a stable and smooth forward and backward movement.

  The natural ventilation structure of the second embodiment shown in FIGS. 5 to 8 is different from the first embodiment in the manner of the interlocking mechanism 4 and the opening / closing operation of both the outdoor side and indoor side opening / closing members 2 and 3.

  That is, as shown in FIG. 7 (a), the cam blocks 26 for the indoor side opening / closing material 3 and the outdoor side opening / closing material 2 are provided on the left and right both sides sandwiching the slit-like natural ventilation port 1 of the attached vertical frame 11. Each cam block 26 is provided with a cam groove 27 that opens toward the inside of the slit-like natural ventilation port, and the side protruding pins 25 provided on the open / close members 2 and 3 on the outdoor side and the indoor side. Protrudes into the cam groove 27 so as to be movable. As shown in FIGS. 5, 6, and 7 (B), the cam groove 27 includes an oblique cam groove portion 27 a extending obliquely upward from the outdoor side 5 toward the indoor side 6, and upper and lower sides of the oblique cam groove portion 27 a. Are provided with vertical cam groove portions 27b, 27b extending in the vertical direction, and the indoor side opening / closing member 3 is guided obliquely upward from the closed position toward the indoor side by the cam groove 27 to open the slit-like natural ventilation port 1 In addition, the outdoor side opening / closing material 2 is guided obliquely downward from the closed position toward the outdoor side by the cam groove 27 so as to open the slit-like natural ventilation port 1. A guide mechanism is configured. 27c is a pin introduction port.

  Further, in the slit-like natural ventilation opening 1, a link 28 is provided between the outdoor side and indoor side opening and closing members 2, 3, and the link 28 has a horizontal pivot 29 provided at the center thereof. By being pivotally attached to the attached vertical frame 11, both sides sandwiching the pivotally attached portion are moved up and down on the side of the opening / closing materials 2 and 3. Further, bifurcated slide portions 28a, 28a are provided at both ends of the link 28, and the pins 24 provided on the open / close members 2, 3 on the outdoor side and the indoor side are bifurcated slide portions of the link 28. 28a and 28a are movably engaged, and an opening / closing operation is performed by applying a vertical force to the indoor opening / closing member 3, thereby rotating the link 28 and opening / closing the outdoor opening / closing member 2. The link mechanism of the interlocking mechanism 4 is configured.

  The indoor opening / closing material 3 is provided with a horizontal plate-like clue 30 for moving the indoor opening / closing material 3 up and down at the intermediate portion in the height direction in the recess provided facing the indoor side 6. ing.

  As shown in FIG. 7B, the pins 24, 24, and 25 are provided in the engagement unit 23 and attached to the indoor side opening / closing material 3 and the outdoor side opening / closing material 2 (not shown). The pins 24, 24, and 25 may be original pins, or may be roller-type pins or the like for smooth movement.

  In the natural ventilation structure employing the interlocking mechanism 4 as described above, the interlocking mechanism 4 can be obtained by pushing up the clue 30 of the indoor opening / closing material 3 from the state shown in FIG. 6 in which the slit-like natural ventilation opening 1 is closed. 8, the indoor side opening / closing material 3 moves obliquely upward toward the indoor side 6 and the outdoor side opening / closing material 2 obliquely downwards toward the outdoor side, as shown in FIG. The slit-shaped natural ventilation opening 1 is opened.

  On the other hand, if the clue 30 of the indoor side opening / closing member 3 is pushed down from the state shown in FIG. 5, the indoor side opening / closing member 3 moves obliquely downward toward the outdoor side 5 by the interlock mechanism 4, and The outer opening / closing member 2 moves obliquely upward toward the indoor side 6 and the slit-like natural ventilation opening 1 is closed as shown in FIG.

  Further, in the open position and the closed position, the pin 25 constituting the guide mechanism is located in the vertical cam groove portion 27b of the cam groove 27, whereby the force that pushes and pulls the opening / closing members 2 and 3 in the front-rear direction. Opening / closing operation is not performed even if is operated, the open or closed position is maintained, and the indoor opening / closing material 3 or the outdoor opening / closing material 2 is unexpectedly pushed, so that the slit-like natural ventilation port 1 is closed. The occurrence of malfunctions such as opening the slit-like natural ventilation opening 1 due to being caught on the indoor side opening / closing material 3 or the outdoor side opening / closing material 2 can be eliminated.

  As described above, according to the interlocking mechanism 4 described above, the open / close members 2 and 3 on the outdoor side and the indoor side can be interlockedly opened / closed by the link mechanism having one link 28, and the structure of the link mechanism is simple. As well as being able to move smoothly, the guide mechanism is also composed of the pin 25 and the cam groove 27, so that the slit-like natural ventilation port 1 can be smoothly moved with a simple interlocking mechanism. Can be opened and closed.

  Further, by applying a vertical force to the clue part 30 of the indoor side opening / closing member 3, the opening / closing members 2 and 3 are moved back and forth to open and close the slit-like natural ventilation port 1, and the opening / closing operation can be easily performed. Can do.

  Although the embodiment of the present invention has been described above, the present invention is not limited to this, and various modifications can be made without departing from the spirit of the invention. For example, in the natural ventilation structure of the second embodiment, the cam groove for the indoor side opening / closing material and the cam groove for the outdoor side opening / closing material have upper and lower vertical cam groove portions communicating with the upper end side and the lower end side of the inclined cam groove portion, respectively. The pin is located in the vertical cam groove at the open position and the closed position. However, in the fourth invention, the vertical cam groove portion includes the cam groove for the indoor side opening / closing material and the outdoor side opening / closing. It may be provided only in one of the cam grooves for the material, may be provided only on the upper end side of the inclined cam groove portion, or may be provided only on the lower end side of the inclined cam groove portion. In short, it is sufficient that the opening / closing material is provided in such a manner that the opening / closing operation cannot be performed by the force in the front-rear direction at the open position and / or the closed position.

  Further, in the second embodiment, the indoor side opening / closing material is opened by moving obliquely upward from the closed position toward the indoor side, and the outdoor side opening / closing material is moved obliquely downward from the closed position toward the outdoor side. In the third aspect of the invention, the indoor side opening / closing material is opened by moving obliquely downward from the closed position toward the indoor side, and the outdoor side opening / closing material is closed. It may be made to be in an open state by moving obliquely upward from the outside toward the outdoor side.

  Furthermore, in each of the above embodiments, the case where the interlocking mechanism is composed of a specific guide mechanism and a specific link mechanism has been shown. However, in the second invention, an interlocking mechanism using other guide mechanisms or other link mechanisms is adopted. In the first invention, an interlocking mechanism that does not depend on the guide mechanism or the link mechanism may be employed.

The natural ventilation structure of 1st Embodiment is shown, and it is the II sectional view taken on the line of FIG. 9 (a) of the state which opened the slit-shaped natural ventilation opening. It is the II sectional view taken on the line of FIG. 9 (a) of the state which opened the slit-shaped natural ventilation opening. It is a cross-sectional side view of the state which opened the slit-shaped natural ventilation opening. It is a cross-sectional side view of the state which closed the slit-shaped natural ventilation opening. The natural ventilation structure of 2nd Embodiment is shown, and it is a cross-sectional side view of the state which opened the slit-shaped natural ventilation opening. It is a cross-sectional side view of the state which shows the same natural ventilation structure and closed the slit-shaped natural ventilation opening. FIG. 1 (a) shows the natural ventilation structure, and is a cross-sectional plan view of the slit-shaped natural ventilation opening, and FIG. 2 (b) is an exploded perspective view of the guide mechanism. FIGS. 1A to 1C are side views sequentially showing the opening / closing operation process of the interlocking mechanism. Fig. (A) is a front view of a sash window, and Fig. (B) is a sectional side view of a slit-like natural ventilation port portion.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Slit-like natural ventilation opening 2 ... Outdoor side opening / closing material 2a ... Cover plate part 2c ... Ventilation opening part (ventilation part for ventilation)
3 ... Indoor side opening / closing material 3a ... Cover plate part 3c ... Ventilation opening (ventilation part for ventilation)
4 ... Interlocking mechanism 5 ... Outdoor 6 ... Indoor 11 ... Attached vertical frame (vertical frame part of sash)
DESCRIPTION OF SYMBOLS 12 ... Guide mechanism 13 ... Link mechanism 24 ... Pin 25 ... Pin 27 ... Cam groove 27a ... Diagonal cam groove part 27b ... Vertical cam groove part 28 ... Link 28a ... Bifurcated slide part 30 ... Clue part

Claims (1)

The vertical frame portion of the sash frame is provided with a vertical slit-like natural ventilation port, and intake and exhaust are simultaneously performed at the natural ventilation port due to the temperature difference between the room and the outside,
An outdoor side opening / closing material that opens and closes the slit-like natural ventilation port from the outdoor side, and an indoor side opening / closing material that opens and closes the slit-like natural ventilation port from the indoor side. Is designed to open and close the slit-like natural ventilation port in conjunction with the interlocking mechanism, and
The outdoor side opening / closing material has a non-perforated lid portion, and when the lid portion advances to the outdoor side, a ventilation ventilation portion facing sideways is formed between the lid portion and the slit-like natural ventilation port. The vent is opened, and the lid is retracted so that the vent is closed by the lid,
The indoor side opening / closing material has a non-perforated lid portion, and when the lid portion advances to the indoor side, a ventilation ventilation portion facing sideways is formed between the lid portion and the slit-like natural ventilation port. The vent is opened, and the lid is retracted so that the vent is closed by the lid,
The interlocking mechanism includes a guide mechanism that guides both the opening and closing materials on the outdoor side and the indoor side in the opening and closing direction, and a link mechanism that connects the opening and closing materials and causes the opening and closing materials to perform interlocking opening and closing operations. And is provided at multiple locations in the vertical direction in the slit-like natural ventilation opening,
The guide mechanism is
A cam groove for indoor opening / closing material and an outdoor opening / closing opening provided on the vertical frame portion of the sash frame and provided with an inclined cam groove portion and a vertical cam groove portion communicating with the upper end side and / or the lower end side of the inclined cam groove portion Cam groove for the material,
Each open / close material is provided with a pin that is movably engaged with the corresponding cam groove, and by applying a vertical force to each open / close material, each open / close material has an inclined pin. Guided by the cam groove, it moves diagonally up and down to open and close the slit-like natural ventilation port, and the pin is positioned in the vertical cam groove at the open position and / or the closed position, Depending on the force, opening and closing operations are not performed,
The link mechanism is
Between the outdoor side and indoor side opening and closing materials, the middle part is pivotally attached to the vertical frame portion of the sash frame, and both sides sandwiching the pivoting part are provided so as to move up and down on the side of each opening and closing material. A link provided with a bifurcated slide part in the part;
Provided on each of the outdoor side and indoor side opening and closing members, and a pin that is slidably engaged with the bifurcated slide portion of the link. When the pin slides in the slide portion, the pin on the indoor opening / closing member side rotates the link, and the rotating link acts on the pin on the outdoor opening / closing member side, so that the outdoor opening / closing member Is configured so that the pin in the cam groove can be positioned in the vertical cam groove portion in the open position and / or the closed position.
Natural ventilation structure, wherein the the indoor side closing material, clues portion for applying a vertical force is al provided.

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