JP2010095895A - Window for natural ventilation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the movability of a window sash by forcibly opening the window sash by a predetermined amount by a window sash opening operation device to naturally open the window sash in an opened state. <P>SOLUTION: In this window 1 for natural ventilation, an upper side arm 4 one end of which is pivotally mounted on the upper part of the vertical stile and the other end of which is pivotally mounted on the vertical frame at a lower position, and a lower side arm 5 one end of which is pivotally mounted on the intermediate part of the vertical stile and the other end of which is pivotally mounted on the vertical frame at a lower position, are installed. When the window sash is closed, the upper side arm 4 is installed in such a manner that the vertical stile side pivot point A is positioned further toward the outdoor side than the vertical frame side pivot point B, and the vertical frame side pivot point B is positioned further toward the indoor side than the center of gravity K of the window sash. The window sash opening operation device 17 for opening the window sash 3 by pushing out the under stile member 3B of the window sash 3 is provided to a window lower frame 2B. When the window sash 3 is opened from the closed state to a predetermined opening by the window sash opening operation device 17, the window starts automatically opening and is brought into a static state in which forces are kept in balance. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a window for performing natural ventilation such as wind ventilation and gravity ventilation while automatically adjusting the opening degree by wind pressure.

  In recent years, frequent ventilation has been recommended for measures such as sick house. Ventilation methods are broadly divided into natural ventilation and mechanical ventilation. The former natural ventilation is classified into wind ventilation and gravity ventilation. Wind ventilation opens two windows on different sides of the room and uses the positive pressure on the windward side and the negative pressure on the leeward side to ventilate, and the gravity ventilation is warmed. Ventilation is achieved using the principle that air rises lightly.

  As the window for performing natural ventilation, for example, a window described in Patent Document 1 and a window described in Patent Document 2 have been proposed. Specifically, in Patent Document 1, the window frame, a flat-plate type shoji part rotatably attached to the window frame via a horizontal rotation shaft, and at least one of an upper part or a lower part of the shoji part are installed. A position having a weight, and the horizontal rotation axis is centered on the rotation axis, and the rotational moment related to one center of gravity of the shoji part including the weight is balanced with the rotational moment related to the other center of gravity of the shoji part A door part opening means for opening the door part at a predetermined angle with respect to the window frame in a window located on the leeward side of the building or in a windless state by the action of the weight, and a building As a window located on the windward side of an object, there has been proposed a window provided with a shoji part closing means for closing the shoji part by wind pressure received on an outer surface.

Moreover, in patent document 2, the natural wind ventilation window which has the window frame attached facing the exterior of a room or a building, the state which put in the window frame and closed the window, and the shoji which protrudes outward from the window frame, and opens A short length provided between the rigid frame on both sides of the window frame and the shoji screen, one end pivotally attached to the top of the saddle and the other end pivotally attached to the rigid frame at a position lower than the one end. In the state where the shoji is closed, each arm has a main arm and a sub-arm having one end pivotally attached to the middle part of the heel and the other end pivotally attached to the lower part of the heel frame and longer than the main arm. Each arm is oriented almost vertically, and the pivot position of each arm to the collar is located above the pivot position of each arm to the collar, and the pivot position of each arm to the collar is It is located on the indoor side of the center of gravity and opens gently by the weight of the shoji when there is no wind. Natural wind ventilation window to 閉窓 by the wind blowing from the part side toward the sliding door has been proposed.
Japanese Patent Laid-Open No. 10-18457 Japanese Patent No. 3777441

  However, in the case of the natural ventilation window described in Patent Document 1, the wind pressure that hits the upper side of the horizontal rotation axis and the wind pressure that hits the lower side cause rotation in opposite directions, and the difference in area causes the wind pressure to rotate the shoji. Effective area. Therefore, the weight becomes heavy and the whole inertia gravity increases. As a result, there are problems such as slow opening / closing operation in a light breeze and impact noise generated by contacting the stopper with a large force. Moreover, the upper side of the shoji protrudes to the indoor side, and there is a problem that the screen door cannot be provided and the appearance is impaired.

  On the other hand, in the case of the natural wind ventilation window described in the above-mentioned Patent Document 2, the window structure has a shoji that is opened outwardly from a window frame attached facing the outside of the room or building. It has the advantage that the appearance is excellent in that it does not protrude, and that the opening and closing operation of the shoji is performed sensitively in a light wind (low wind pressure). In the case of this natural wind ventilation window, the window is opened naturally from the state in which the shoji is closed, but the opening arm force that starts the shoji starting from the closed window is slightly inclined. And the rotational moment generated in the sub arm. However, since the force of this rotational moment is small, there is a problem that when the rust and backlash occur with the passage of time and the mobility of the hinge part deteriorates, the shoji does not naturally open and ventilation becomes impossible.

  Furthermore, if the window structure is made by connecting the shojis in the lateral direction, the window structure that is balanced by the weight and weight of the shojis, the backlash of each shaft and the degree of friction, manufacturing errors, Due to factors such as construction errors, there was a slight difference in the degree of opening of the shoji, and there was a problem that the shoji was not neatly arranged.

  Therefore, the main problem of the present invention is to open and close the shoji even under a light wind under a window structure having a shoji that opens from the window frame attached facing the outside of the room or building. Is made sensitively, and when the forcible opening operation device forcibly opens the window by a predetermined amount, by opening the window naturally from that state, the mobility of the shoji is improved. The object is to alleviate the impact and impact sound when the shoji is suddenly closed by a strong wind.

  In addition, by installing a shoji opening adjustment mechanism that adjusts the degree of opening when the shoji is stationary without hindering the natural opening and closing operation of the shoji, it is possible to neatly arrange the shoji that are arranged continuously even when a window is used. There is to do.

In order to solve the above-mentioned problem, the present invention according to claim 1 is a natural structure comprising a window frame attached to an outer wall of a room or a building, and a shoji that is housed in the window frame and the lower side of the lower arm is turned outward and opened. In the ventilation window,
The natural ventilation window has a relative position in which one end is pivotally connected to the upper part of the vertical fence and the other end is pivotally attached to the vertical frame at a position lower than the one end, between the vertical frame of the window frame and the vertical fence of the shoji. An upper arm having a relatively short length, and a lower arm having a relatively long length having one end pivotally attached to the middle portion of the vertical shaft and the other end pivotally attached to the vertical frame at a position lower than the one end. Have
In the closed state of the shoji, the upper arm is located on the outboard side with respect to the vertical frame side pivoting position, and the vertical frame side pivoting position is located on the indoor side of the center of gravity of the shoji. Position to,
And, with respect to the lower frame of the window frame, provided with a shoji opening operation device for pushing the shoji of the shoji to the outside by a predetermined amount to open the shoji,
When the shoji is opened by the above-mentioned shoji opening operation device from the closed window and the opening becomes a predetermined opening, the shoji starts to open automatically by its own weight and keeps the stationary state in an equilibrium state where the force is balanced. There is provided a natural ventilation window characterized in that the opening degree is automatically adjusted by the wind pressure from the outside or inside from the state.

  In the first aspect of the invention, in particular, in the closed state of the shoji, the upper arm is located on the outdoor side of the vertical frame side pivoted position with respect to the vertical frame side, and the vertical frame side The pivoting position is located on the indoor side of the center of gravity of the shoji, and the lower arm is located on the vertical line passing through the vertical frame side pivoting position or slightly on the indoor side, A shoji opening device for opening the shoji by pushing the lower arm of the shoji to the outside by a predetermined amount with respect to the lower frame of the window frame is provided.

Wherein in the upper arm, the moment M ₁ for rotating the upper arm outward direction by shoji weight acting on the vertical frame side pivot point occurs. Further, in the example shown in FIG. 9, the lower arm is vertically oriented, or, in contrast to the upper arm, the downside pivot point (upper side) is slightly inclined to the indoor side. Therefore, no moment is generated in the lower arm, or only a moment in the direction of turning in the room is generated. Moment M ₁ generated in the upper side arms, to act as a force to close the sliding door, the sash alone, Shoji in閉窓state is adapted to hold the closed state. Accordingly, the shoji is started by pushing the lower arm of the shoji to the outside by a predetermined amount by the shoji opening device to open the shoji.

When you start opening the sliding door by the shoji opening operation device, the lower arm is inclined outwardly, the moment M ₂ to pivot the sash to the lower side arm outward direction is generated accordingly. The increase rate of the moment M ₂ is larger than that of the upper arm by the length of the arm, reaches a predetermined opening degree, and when the relationship of M ₂ > M ₁ is established, the force in the direction to open the shoji Wins and the shoji starts opening automatically by its own weight. In the state in which the window opening is automatically started, the pushing force by the shoji opening device is not necessary, so that, for example, the shoji door is separated from the shoji and the force from the shoji opening device is not applied. Thereafter, the shoji is kept stationary in an equilibrium state where the forces are balanced.

  In the stationary state, the opening degree is automatically adjusted by the wind pressure from the outside or the inside on the shoji. That is, when wind pressure (positive pressure) is applied from the outside, the shoji turns in the closing direction, and the inflow air volume is reduced by narrowing the opening of the shoji. After that, when it becomes windless, the shoji will return to its original opening. Further, when the negative pressure increases or the airflow from the indoor side increases, the shoji rotates in the opening direction, and the amount of air flowing in is increased by increasing the opening of the shoji. After that, when the air flow decreases or no negative pressure is applied, the shoji returns to its original opening.

  In the case of the natural ventilation window, since the shoji opening operation device gives the force to start the shoji from the closed window state, even if rust and backlash occur in the rotating part over time, the shoji It is possible to continue to maintain a good movable state.

  According to a second aspect of the present invention, the shoji opening operation device is a kick-out device that is supported on a mounting base, and is pivotally supported by the mounting base around a vertical axis, and has an abutting roller at the tip. The natural ventilation window according to claim 1, comprising an arm and an urging means for urging the kicking arm in the outward rotation direction.

  The invention according to claim 2 shows a specific structural example of the shoji opening operation device. Specifically, a mounting base, a kicking arm that is supported by the mounting base so as to be rotatable about a vertical axis, and has an abutting roller at the tip, and the kicking arm is rotated outward. And urging means for urging in the moving direction.

  In the case of this structure, the kicking arm pushes the lower arm of the shoji outward by a predetermined amount by an urging force of a spring or the like to open the shoji. Also, when the wind is strong enough to close the shoji, after the shoji of the shoji collides with the abutting roller of the kicking arm, the impact is buffered by the urging force acting on the kicking arm. Since the shoji is closed while the door is closed, it is possible to mitigate the impact and sound of the window frame.

  According to a third aspect of the present invention, there is provided the natural ventilation window according to the second aspect, wherein the mounting base is provided with a stopper that regulates an outer rotational position of the kicking arm.

  According to the third aspect of the present invention, by providing the mounting base with a stopper that regulates the outer rotation position of the kicking arm, the kicking arm does not push out the shoji more than necessary. I have to.

  As a fourth aspect of the present invention, a pulley is provided at a vertical frame position on the upper side of the vertical arm side pivoting position of the lower arm, and one end is fixed to the vertical arm pivot point of the lower arm. One end of a spring member is connected to the other end of the rope member around which the pulley is wound, and the other end of the spring member is connected to a vertical position adjustment mechanism that can adjust the vertical position. The window for natural ventilation in any one of Claims 1-3 is provided.

  In the invention described in claim 4, a pulley is provided at a vertical frame position that is on the upper side of the vertical arm side pivoting position of the lower arm, and one end is fixed to the vertical arm pivot point of the lower arm. Then, one end of a spring member was connected to the other end of the rope member around which the pulley was wound, and the other end of the spring member was connected to a vertical position adjustment mechanism that was capable of adjusting the position in the vertical direction. Therefore, by adjusting the vertical position of the other end of the spring member, it is possible to arbitrarily adjust the opening when the shoji is stationary. It becomes possible to make it.

  According to a fifth aspect of the present invention, the vertical position adjusting mechanism includes a feed screw member disposed in a vertical direction, a nut-like member screwed to the feed screw member, and a slide member that moves together with the nut-like member. The natural ventilation window according to claim 4, wherein the other end of the spring member is connected to the slide member.

  The invention according to claim 5 shows a specific structural example of the vertical position adjusting mechanism. If the feed screw mechanism is used, the opening degree of the shoji can be adjusted easily and accurately with the shoji open.

  As described above in detail, according to the present invention, under the window structure having a shoji that opens and lowers from the window frame attached facing the outside of the room or the building, the shoji can The opening / closing operation is performed sensitively, and when the window is forcibly opened by a certain amount by the shoji opening operation device, it can be opened naturally from that state, so that the mobility of the shoji can be improved. It becomes. Further, when the shoji is suddenly closed by a strong wind, the impact and impact sound can be reduced by the shoji opening operation device.

  According to the inventions according to claims 4 and 5, in particular, by providing a shoji opening adjustment mechanism that adjusts the degree of opening in the stationary state of the shoji without hindering the natural opening and closing operation of the shoji, Even in this case, it is possible to arrange the shoji screens arranged neatly.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[Structure of natural ventilation window 1]
1 is an interior view of the natural ventilation window 1, FIG. 2 is a view taken along the line II-II in FIG. 1, and FIG. 3 is a view taken along the line III-III in FIG.

  As shown in FIGS. 1 to 3, the natural ventilation window 1 has an upper frame 3A, a lower frame 3B, and an upper frame 2A, a lower frame 2B, and vertical frames 2C, 2D, The vertical shovels 3C and 3D are assembled in four directions, and the shoji 3 in which the glass G is fitted therein is accommodated, and the lower shovel 3B side of the shoji 3 is rolled out and opened.

  The supporting structure of the shoji 3 is such that one end is pivotally attached to the upper part of the vertical eaves 3C and 3D and the other end is the one end between the vertical frames 2C and 2D of the window frame 2 and the eaves 3C and 3D of the shoji 3, respectively. The upper side arms 4 and 4 of relatively short length pivotally attached to the vertical frames 2C and 2D at the lower position, and one end pivotally attached to the middle part of the vertical rods 3C and 3D, and the other end from the one end The lower arms 5 and 5 are relatively long and pivotally attached to the vertical frames 2C and 2D at the lower position.

  This will be described in more detail below.

  The window frame 2 is formed by four-way assembly of an upper frame 2A, a lower frame 2B, and vertical frames 2C and 2D made of an aluminum alloy to form a frame body. Each of the upper frame 2A, the lower frame 2B, and the vertical frames 2C, 2D includes seal holding pieces 2a, 2b, 2c, and 2d at positions closer to the indoor side, and a solid seal 6 at the tip.

  The shoji 3 is composed of an upper iron 3A, a lower iron 3B, and vertical irons 3C, 3D, which are also made of an aluminum alloy, and a glass G is fitted and supported therein. In the state in which the shoji 3 is closed, the airtightness is maintained by the indoor side surfaces of the upper and lower cages 3A, 3B and 3C, 3D coming into contact with the solid seal 6.

  As shown in FIG. 4, reinforcing base plates 7A and 7B are disposed on the side surface of the vertical rod 3C (3D), and a reinforcing base plate 8 is disposed on the inner surface side of the vertical frame 2C (2D). Install a pivot base member that also serves as a reinforcement. For installation, a backing material is arranged on the opposite side through the window member to fix the screws.

As shown in FIG. 5, the upper arm 4 is pivotally attached to the reinforcing base plate 7 </ b> A at the upper end serving as the pivot point 3 </ b> C (3 </ b> D) side pivot point A, and the vertical frame 2 </ b> C (2D) side A lower end serving as a pivot point B is pivotally attached to the reinforcing base plate 8. At this time, in the upper arm 4 is closed, as also shown in FIG. 9, as well as positioned only on the outdoor side shift amount S ₁ than vertical frame side pivot point A longitudinal frame side pivot point B The vertical frame side pivot point B is located on the indoor side of the center of gravity K of the shoji.

  On the other hand, as shown in FIG. 6, the lower arm 5 is pivotally attached to the reinforcing base plates 7A and 7B at the upper end serving as the vertical pivot 3C (3D) side pivot point C. (2D) The lower end serving as the side pivot point D is pivotally attached to the reinforcing base plate 8. At this time, when the lower arm 5 is in the closed state, as shown in FIG. 9, the vertical arm side pivot point C is on the vertical line passing the vertical frame side pivot point D, or the upper arm 4 On the contrary, it is slightly biased to the indoor side. The amount of deviation is 1 to 10 mm, preferably 1 to 5 mm. In the illustrated example, the vertical pivot side pivot point C is biased to the indoor side by 1 mm from the vertical frame pivot point D.

  As shown in FIG. 4, the lower arm 5 is configured by connecting two members with screws so as to be applied to windows of different sizes to form one arm. Yes. The mating surfaces are subjected to serrations, and they are engaged so that they do not shift vertically.

  In the natural ventilation window 1, as shown in FIG. 7, a pulley 9 is provided at a vertical frame position on the upper side of the vertical arm side pivot point C of the lower arm 5, and one end is disposed on the lower side. One end of the spring member 11 is connected to the other end of the wire 10 on which the arm 9 is anchored to the longitudinal pivot point C of the arm 5 and the pulley 9 is wound, and the other end of the spring member 11 is positioned in the vertical direction. It is connected to a vertical position adjustment mechanism 12 that can be adjusted. The spring member 11 functions as a tension spring, and is a force that closes the shoji 3 along the wire direction to the longitudinal pivot point C of the lower arm 5 via the wire 10 according to the opening degree of the shoji 3. A pulling force P is applied.

  The vertical position adjusting mechanism 12 includes a feed screw member 13 arranged in the vertical direction, a nut-like member 14 screwed to the feed screw member 13, and a slide member 15 that moves together with the nut-like member 14. A feed screw mechanism is provided, and the other end of the spring member 11 is connected to the slide member 15. The slide member 15 has a through-hole through which the feed screw member 13 penetrates in the vertical direction, and has a structure in which the nut-like member 14 is rotatably held in a lateral groove crossing the through-hole. By rotating the member 14 manually, the member 14 moves up and down together with the nut-like member 14 so that the pulling force P can be adjusted.

  On the other hand, a shoji opening device 17 for opening the shoji 3 by pushing the lower arm 3B of the shoji 3 to the outside by a predetermined amount with respect to the lower frame 2B of the window frame 2 is provided. As shown in FIG. 8, the shoji opening device 17 is provided with a mounting base 18, and is supported by the mounting base 18 so as to be rotatable about a vertical axis, and provided with an abutting roller 20 at the tip. A kicking arm 19 and a biasing means (torsion spring) 21 for biasing the kicking arm 19 in the outward rotation direction are configured. Preferably, the mounting base 18 is provided with a stopper 18a for restricting the outer rotation position of the kicking arm 19.

The mounting base 18 is a member having a spring retaining piece 18b that rises upward on the side of the plate-like main body 18A, and a stopper piece 18a that rises upward, and is provided with a rotating shaft 22. The kicking arm 19 is attached to the rotating shaft 22 so as to be rotatable about a vertical axis. The abutting roller 20 provided at the tip of the kicking arm 19 is preferably made of resin or rubber. A torsion spring 21 is externally fitted to the rotating shaft 22, and one end of the torsion spring 21 is hooked on the spring locking piece 18 b and the other end is hooked on the spring hooking piece 19 a of the kicking arm 19. Thus, an urging force that urges the kicking arm 19 in the outward rotation direction is applied. As shown in FIG. 7, an abutting block 23 is disposed at the collision position of the abutting roller 20 on the lower arm 3 </ b> B of the shoji 3.
The required number of the shoji opening device 17 is provided according to the acting force required to push the lower arm toward the outside by a predetermined amount against the weight of the shoji 3. In the illustrated example, as shown in FIG.

[Operation explanation of shoji 3]
(Closed window of shoji 3)
In the closed window state shown in FIGS. 9 and 10, the upper arm 4 is centered on the vertical frame side pivot point B by the shoji weight w (W / 4) acting on the vertical axis side pivot point A. As a result, a moment M ₁ (w · S ₁ ) for rotating the upper arm 4 outward is generated. Further, in the lower arm 5, because it is oriented vertically, or on the contrary to the upper arm, the downside pivot point (upper side) is slightly inclined to the indoor side, No moment is generated in the lower arm 5 or only a moment in the direction of turning in the room is generated. The moment M ₁ generated in the upper arm 4 acts as a force in a direction in which the lower arm 3B side of the shoji 3 is closed around the longitudinal arm pivot point C of the lower arm. 3 alone has a structure in which the closed state is maintained, but since the lower arm 3B of the shoji 3 is automatically pushed out by the shoji opening operation device 17, the locking device is used to keep the shoji 3 in the closed state. It is necessary to lock by (not shown).

(Opening operation of shoji 3)
As shown in FIGS. 11 and 12, when the locking device is unlocked, the shoji 3 starts to be opened by the pushing force of the shoji opening operation device 17. Along with this, the lower arm 5 tilts outward, and an opening direction moment M ₂ (w · S ₂ ) that causes the shoji 3 to rotate outward is also generated in the lower arm 5. In addition, a closing direction moment M ₄ (P · S ₄ ) that causes the shoji 3 to close in the direction of closing the shoji 3 by the wire tension P is generated at the downside pivot point C of the lower arm 5. Further, when the center of gravity K of the shoji 3 moves to the outdoor side from the vertical pivot point C of the lower arm 5, a closing moment M ₃ (W · S ₃ ) that acts in the closing direction of the shoji 3 is generated. appear.

The increasing rate of the moment M ₂ of the lower arm 5 is larger than that of the upper arm 4 due to the long arm length, and becomes a predetermined opening (L1), and the relationship of M ₂ > M ₁ + M ₃ + M ₄ is established. Then, the force in the direction in which the shoji 3 is opened further exceeds the force in the closing direction, and the shoji 3 automatically starts to open the window. At this stage, the abutting roller 20 of the shoji opening device 17 is separated from the lower arm 3B of the shoji 3. Therefore, the pushing amount of the shoji lower heel 3B by the shoji opening operation device 17 is preferably set to an amount with a slight margin at the position where the shoji 3 starts to automatically open.

(Balance state of shoji 3)
As shown in FIGS. 13 and 14, when the shoji 3 starts to automatically open and reaches a predetermined opening (L2), the closing direction moments M ₁ , M ₃ , M acting in the direction to close the shoji 3 are closed. ₄ increases and balances with the opening direction moment M ₂ which acts in the direction which opens the shoji 3. That is, to hold the stationary state in equilibrium with 0.00 balance of forces becomes? M _{1 to 4 = 0.}

After that, in this stationary state, the opening degree is automatically adjusted by the wind pressure from the outside or inside of the shoji 3. That is, when wind pressure (positive pressure) is applied from the outside, the shoji 3 rotates in the closing direction, and the amount of air flowing in is reduced by narrowing the opening of the shoji 3. After that, when the windless state is reached, the shoji 3 returns to the original opening. Further, when the negative pressure increases or the airflow from the indoor side increases, the shoji 3 rotates in the opening direction, and the amount of air flowing in is increased by increasing the opening of the shoji 3. Thereafter, when the air flow decreases or no negative pressure is applied, the shoji 3 returns to the original opening.
Even when the shoji 3 is closed by a strong wind, the shoji opening operation device 17 pushes the lower arm 3B of the shoji 3 outward, so that the shoji 3 returns to its original opening.

[Other examples]
(1) In the above embodiment, a single window has been described. However, the present invention can be similarly applied to a continuous window in which the shoji 3, 3,. In this case, by adjusting the opening degree of the shoji 3 by the vertical position adjusting mechanism 12, each shoji 3, 3, ... can be neatly aligned.
(2) In the above embodiment, as shown in FIG. 9, the lower arm 5 is oriented vertically or slightly opposite the upper arm to the vertical side pivot point C (upper side) In the case of the shoji alone, the shoji 3 is kept closed in the closed window state. However, the shoji 3 is not kept in the closed state, and the upper arm 4 and the shoji 3 are kept in the closed state. The windows may be naturally opened by the moments M ₁ and M ₂ acting on the lower arm 5.

Specifically, as shown in FIG. 15, in the closed state of the shoji 3, the lower arm 5 is also connected to the vertical frame side pivot point C in the same manner as the upper arm 4. while located only outdoor side shift amount S ₂ than the point D, the vertical frame side pivot point D may be adapted to be positioned on the interior side of the center of gravity K shoji. With this structure, the upper arm 4 is generated with a moment M ₁ for rotating the upper arm 4 outward by the dead weight w acting on the downside pivot point A, and the lower arm 4. Also in the side arm 5, the moment M ₂ that rotates the lower side arm 5 in the outward direction is generated by the weight of the shoji acting on the downside pivot point C. Therefore, the shoji 3 naturally opens the window from the closed state. start.

Even when the shoji opening operation device 17 of the present invention is provided for the structure in which the shoji 3 automatically starts to open, when the shoji 3 becomes strong enough to be closed, the shoji 3 After the lower arm 3B collides with the abutting roller 20 of the kicking arm 19, the shoji 3 is closed while the shock is buffered by the urging force acting on the kicking arm 19, so that the shock to the window frame 2 is reduced. And shock noise can be reduced.
(3) As shown in FIG. 7, it is possible to restrict the maximum opening of the shoji 3 by arranging a stopper 16 at the lower part of the upper arm 4.

It is an inside view of window 1 for natural ventilation. It is the II-II arrow directional view (longitudinal sectional view) of FIG. It is the III-III arrow directional view (cross-sectional view) of FIG. It is a one-side front view which shows the connection state of the shoji 3 and the window frame 2. FIG. FIG. 5 is a view taken along line VV in FIG. 4. It is the VI-VI line arrow directional view of FIG. It is a longitudinal cross-sectional view which shows the connection state of the shoji 3 and the window frame 2. FIG. The shoji opening device 17 is shown, (A) is a plan view and (B) is a front view. It is a closed window state figure for demonstrating the operation state of the shoji. FIG. 10 is a view taken along the line X-X in FIG. 9. It is an open operation state diagram for demonstrating the operating state of the shoji. FIG. 12 is a view taken along the line XII-XII in FIG. 11. It is a balance state diagram for demonstrating the operating state of the shoji. It is the XIV-XIV line arrow directional view of FIG. It is a shoji state sectional view showing a modification of the lower arm 5.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Window for natural ventilation, 2 ... Window frame, 3 ... Shoji, 4 ... Upper arm, 5 ... Lower arm, 9 ... Pulley, 10 ... Wire, 11 ... Spring member, 12 ... Vertical position adjustment mechanism, 13 ... Feed screw member, 14 ... nut-like member, 15 ... slide member, 17 ... shoji opening operation device, 18 ... mounting base, 19 ... kicking arm, 20 ... abutting roller, 21 ... torsion spring

Claims (5)

In a natural ventilation window consisting of a window frame attached to the outer wall of a room or building, and a shoji that is housed in this window frame and the lower side of the lower wall opens outward and opens,
The natural ventilation window has a relative position in which one end is pivotally connected to the upper part of the vertical fence and the other end is pivotally attached to the vertical frame at a position lower than the one end, between the vertical frame of the window frame and the vertical fence of the shoji. An upper arm having a relatively short length, and a lower arm having a relatively long length having one end pivotally attached to the middle portion of the vertical shaft and the other end pivotally attached to the vertical frame at a position lower than the one end. Have
In the closed state of the shoji, the upper arm is located on the outboard side with respect to the vertical frame side pivoting position, and the vertical frame side pivoting position is located on the indoor side of the center of gravity of the shoji. Position to,
And, with respect to the lower frame of the window frame, provided with a shoji opening operation device for pushing the shoji of the shoji to the outside by a predetermined amount to open the shoji,
When the shoji is opened by the above-mentioned shoji opening operation device from the closed window and the opening becomes a predetermined opening, the shoji starts to open automatically by its own weight and keeps the stationary state in an equilibrium state where the force is balanced. A window for natural ventilation, wherein the opening is automatically adjusted by the wind pressure from the outside or inside from the state.   The shoji opening operation device includes a mounting base, a kicking arm that is supported by the mounting base so as to be rotatable about a vertical axis, and has an abutting roller at the tip, and the kicking arm. The natural ventilation window according to claim 1, further comprising an urging means for urging in an outward rotation direction.   The natural ventilation window according to claim 2, wherein the mounting base is provided with a stopper that regulates an outer rotational position of the kicking arm.   A pulley is provided at a vertical frame position on the upper side of the vertical arm side pivoting position of the lower arm, one end is connected to a vertical arm pivot point of the lower arm, and the pulley is wound. 4. One end of a spring member is connected to the other end of the rope member, and the other end of the spring member is connected to a vertical position adjustment mechanism that can adjust the position in the vertical direction. Natural ventilation windows.   The vertical position adjusting mechanism is a feed screw mechanism including a feed screw member arranged in the vertical direction, a nut-like member screwed to the feed screw member, and a slide member that moves together with the nut-like member, The natural ventilation window according to claim 4, wherein the other end of the spring member is connected to the slide member.

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