JP2001098827A - Stay for window ventilation - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent fall accident of a small child due to mischief, by restraining a window from being opened abruptly beyond a ventilating position, and besides, to save the trouble of a switching operation on the occasion of opening the window entirely. SOLUTION: A checking arm 5 is fitted to the window 2 side, while a guide frame 6 is provided on the side of an opening frame 1. A slide pin 13 provided at the swinging end of the checking arm 5 is engaged with and guided by a guide groove 12 of the guide frame 6 so that it can slide vertically. An opening 14 for allowing the slide pin 13 to be put in and out is provided in a closed end of the guide groove 12 and is opened and closed by a shutter 7 sliding vertically. Thus, the slide pin 13 is set so that it can only be detached from the guide frame 6, after the window 2 is closed from a ventilating position and after the opening 14 is opened by sliding the shutter 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a restraining arm pivotally supported by an opening frame to restrict the opening of a window in a ventilation position. It relates to a stay for window ventilation that can be opened directly.

[0002]

2. Description of the Related Art This type of stay is disclosed in Japanese Utility Model Publication No. 55-1470.
This is known from Japanese Patent Publication No. Here, the upper end of the traction arm is pivotally supported on the window side, and a slide pin provided at the lower end of the traction arm is vertically guided and supported by a guide frame provided in the opening frame. Inside the guide frame, there is a lock lever that is biased by a spring. When the window is opened from the closed position to the ventilation position, the lock lever automatically engages and captures the head of the slide pin. To lock the window so that it cannot be opened and closed. In order to unlock the lock lever, a release knob is provided on the guide frame. If the lock lever is unlocked by operating the release knob to slide horizontally, the slide pin is further slid up to pull out the pin head from the guide frame and fully open the window.

[0003]

In the stay described above, the traction arm can be locked and held by the lock lever so as not to slide by simply opening the window from the closed position to the ventilation position. When the window is fully opened, the lock lever is unlocked, the slide pin is slid upward, and then the pin head is pulled out of the guide groove. In other words, by opening the window beyond the ventilation position, the slide pin of the restraint arm can be pulled out of the guide frame. In such a stay, the lock lever can be unlocked in the ventilated open position, so when a child manipulates the lock lever with mischief, it is inevitable that the window will move in the opening direction. An accident may occur.

[0004] When the fully opened window is closed, the slide pin of the traction arm must be engaged and connected to the guide frame near the ventilation position, which poses a problem in safety.
In addition, since the movement of the restraint arm is limited to a change in posture in a vertical plane, it is difficult to apply, for example, to a swing window that is frequently used.

[0005] It is an object of the present invention to prevent the window from being opened carelessly beyond the ventilation position, to prevent falling down of an infant or the like. It is an object of the present invention to provide a window ventilation stay capable of releasing the window by easily opening the window by releasing the opening restriction operation of the arm. It is another object of the present invention to provide a window ventilation stay that can release the linked state between the traction arm and the guide frame only when the window is fully closed, or can perform a switching operation so that the window cannot be released. Still another object of the present invention is to provide a window ventilation stay provided with a lock for preventing the shutter from sliding open, and the window cannot be fully opened unless the lock is unlocked.

An object of the present invention is to provide a lock for preventing sliding displacement of a shutter when the window is fully opened, and to prevent the shutter from being closed and slid due to mischief or the like when fully opened. It is an object of the present invention to provide a window ventilation stay which can prevent the restraint arm from hitting the lid wall and being damaged when the fully opened window is closed. Another object of the present invention is to provide a lock that can prevent the shutter from sliding at each of the position where the lid wall opens and closes the entrance, and can prevent the shutter from being slid by mischief or the like. To provide a stay for window ventilation.

[0007] Another object of the present invention is to operate the shutter to the side that opens the doorway by mischief or the like while the window is opened to the ventilation position.
By simply closing the window, the shutter can be forcibly returned to the original closed position, so that a window ventilation stay that can reliably prevent unauthorized opening of the window from the outside and falling down of children due to mischief etc. Is to provide. Another object of the present invention is to provide a stay for window ventilation which has a simple structure and can be manufactured at a low cost, by using a movement of a restraint arm to return an opened shutter to a closed position. It is in.

[0008]

A stay for ventilation of a window according to the present invention comprises a guide frame 6 fixed to an opening frame 1 and a window 2 at one end.
And a restraining arm 5 which is supported so as to be swingable.
The slide pin 13 provided at the tip of the swing of the restraint arm 5 is
A guide groove 12 provided in the guide frame 6 engages and reciprocates slidably. The guide frame 6 has an entrance 14 for allowing the slide pin 13 to enter and exit when the window 2 is closed.
Are continuously opened at the closed end of the guide groove 12. The doorway 1 is guided and supported by the guide frame 6 so that it can slide back and forth.
A shutter 7 for opening and closing the shutter 4 and a knob 9 for sliding the shutter 7 are provided on the guide frame 6. Thus, only when the window 2 is closed and the lid wall 15 provided on the shutter 7 opens the entrance 14, the slide pin 13
Allows the entrance 14 to enter and exit.

More specifically, a shutter lock 30 is provided facing the sliding area of the shutter 7 to prevent the shutter 7 from sliding open. The shutter lock 30
It is provided so that the posture can be changed between a locked posture for receiving the shutter 7 and an unlocked posture for allowing the shutter to slide open, and is normally held in the unlocked posture. In the ventilation open state, the slide pin 13 circumscribes the shutter lock 30 and the shutter lock 30
Is configured to be held in the locked posture.

The shutter 7 is provided with a second lock 45 which engages with the guide frame 6 to prevent the shutter 7 from sliding back and forth. The second lock 45 is supported by the shutter 7 so that the second lock 45 can be displaced between a lock position for engaging the guide frame 6 and a lock release position for releasing the engagement with the guide frame 6.
Press to displace to lock position. The second lock 45 engages with the guide frame 6 at each of a position where the cover wall 15 of the shutter 7 opens the entrance 14 and a position where the entrance 14 is closed, and prevents the slide displacement of the shutter 7.
Thus, only when the slide pin 13 engaged with the guide groove 12 is in the window closed state facing the entrance 14, the second lock 4
The lock pin 5 is configured to be unlocked by the slide pin 13 against the urging force of the spring 48.

On the base 3 attached to the window 2,
Is fixed to the arm pin 4 which supports. The restraining arm 5 is connected to the arm pin 4 so as to be tiltable. Further, the spring 21 disposed between the two 4 and 5 moves and biases in the direction of contacting the base 3 and the direction of returning to the closed position.

A lock body 8 having an elastically deformable engaging claw 23 is provided near the ventilation end side of the guide groove 12. Thus, with the window 2 opened to the ventilation position, the slide pin 13 is engaged and captured by the lock body 8.

A lock 35 is provided between the guide frame 6 and the shutter 7 so as to engage with the shutter 7 and prevent the shutter 7 from sliding open. As for the lock 35, the lid wall 15 of the shutter 7 is
Only when the cover 4 is closed, a detachable key 39 is provided so as to be switchable between a locked state and an unlocked state.

A lock 35 is provided between the guide frame 6 and the shutter 7 so as to engage with each other and prevent the shutter 7 from sliding open. As for the lock 35, the lid wall 15 of the shutter 7 is
At a position where the door 4 is opened and a position where the lid wall 15 closes the entrance 14, a detachable key 39 is provided so as to be switchable between a locked state and an unlocked state. Shutter lock 3
0 is formed integrally with the lock body 8.

A claw piece 52 is provided at the swinging tip of the restraining arm 5 for abuttingly engaging with the knob 9 and performing a sliding operation to return the opened shutter 7 to the closed position. Thus, the shutter 7 that has been opened when the ventilation is opened is returned to the closed position by the claw 52 via the knob 9 in conjunction with the closing operation of the window 2 and is slid.

A passive piece 54 is arranged on the inner surface of the shutter 7 facing the movement locus of the slide pin 13. The passive piece 54 is guided and supported by the shutter 7 so as to be able to reciprocate between a passive position crossing the movement locus of the slide pin 13 and a standby position retreating outside the movement locus of the slide pin 13. A reversible switching mechanism 57 is provided between the guide frame 6 and the passive piece 54 to displace the passive piece 54 to the passive position in conjunction with the opening slide displacement of the shutter 7. Therefore,
The shutter 7, which has been opened when the ventilation is opened, is returned to the closed position by the slide pin 13 via the passive piece 54 in conjunction with the closing operation of the window 2.

The switching mechanism 57 is composed of a switching groove 58 provided in the guide frame 6 along the moving direction of the slide pin 13 and a switching pin 59 mounted on the passive piece 54 and displaced by the switching groove 58. . The passive piece 54 is urged to move toward the standby position by a spring 56.

On the inner surface of the shutter 7 facing the transition locus of the restraining arm 5, a passive piece 61 is provided which is in contact with the restraining arm 5 or the slide pin 13. The shutter 7 that has been opened when the ventilation is opened is returned to the closed position via the passive piece 61 by the restraining arm 5 that slides and displaces in conjunction with the closing operation of the window 2.

The above-mentioned passive piece 61 is provided on the closing start end side of the shutter 7. As a result, the passive piece 61 near the stroke end of the traction arm 5 when the window 2 is closed is operated.
Is operated by the restraint arm 5 to return to the closed position.

On the inner surface of the lid wall 15 of the shutter 7, a passive piece 61 which is slid and returned by the land pin 13 is provided integrally with the lid wall 15. Guide groove 1 facing entrance 14
A recess 65 for receiving the slide pin 13
Is provided. Thus, the amount of engagement between the slide pin 13 and the passive piece 61 when the window 2 is closed is set to be smaller than the amount of engagement between the slide pins 13 and 61 during the accompanying slide.

[0021]

In the state where the window 2 is closed,
The slide pin 13 provided on the restraint arm 5 is
2 and faces the entrance 14 at the closed end. At this time, depending on whether the lid wall 15 of the shutter 7 closes or opens the entrance 14, a difference occurs in the behavior of the restraint arm 5 when the window 2 is opened. When the entrance 14 is open, the slide pin 13 goes out of the guide frame 6 along with the window 2 and the check arm 5. Therefore, the window 2 can be fully opened. When the entrance 14 is closed by the lid wall 15, the slide pin 13 is received by the lid wall 15, so that when the window 2 is opened, the slide pin 13 slides and displaces along the guide groove 12. I can take it. Therefore, the window 2 is held in the ventilation open position by the restraining arm 5.

As described above, according to the present invention, even if the shutter 7 is operated by mischief while the window 2 is ventilated and opened, the window 2 cannot be opened any further. It can be prevented before it happens. The window 2 can be fully opened or the ventilation can be opened simply by opening and closing the doorway 14 by sliding the shutter 7, so that it is possible to save the trouble of changing the opening amount of the window 2 as compared with a conventional stay of this type. be able to.

The shutter lock 30 is provided so as to be changeable between a locked position and an unlocked position, and is held in the unlocked position in a normal state (free state). However, as the window 2 is opened to the ventilation position,
When the slide pin 13 slides to the ventilation end of the guide groove 12, the slide pin 13 circumscribes the shutter lock 30 that has been holding the unlocked position, and switches the shutter lock 30 to the locked position. Therefore, in the ventilation open state, the shutter 7 cannot be slid to open the entrance 14. In other words, the shutter 7 cannot be slid open unless the window 2 that has been ventilated is once closed completely, so that it is possible to reliably prevent the window 2 from being fully opened due to the gust of wind, and the safety can be improved accordingly. . Since the shutter is switched to the shutter lock position by using the slide displacement of the slide pin 13, it is not necessary to separately provide a position switching mechanism for the shutter lock 30, for example. Therefore, the posture of the shutter lock 30 can be reliably switched without the need for the operation.

In the stay where the shutter 7 is provided with the second lock 45, the second lock 45 engages with the guide frame 6 at each position where the lid wall 15 opens or closes the entrance 14, and Slide displacement is prevented. However, when the slide pin 13 is displaced from the side of the ventilation open position to a position facing the entrance 14, the second lock 45 is moved.
Is unlocked by the slide pin 13 to release the engagement with the guide frame 6. Therefore, also in this case, the shutter 7 cannot be slid open unless the window 2 that has been ventilated and opened is once completely closed. After the shutter 7 is slid open, the window 2 can be fully opened. In this fully open state, if the shutter 7 is closed and slid by mischief or the like, the slide pin 13 collides with the lid wall 15 and is damaged when the window 2 is closed. To avoid this,
Even when the shutter 7 is slid open, the second
The lock 45 can be engaged with the guide frame 6.

According to the stay provided with the lock 35 for preventing the shutter 7 from sliding open between the guide frame 6 and the shutter 7, the lock 7 is locked, so that the shutter 7 is slid open by mischief. There is no room for it. In particular, the lid wall 15 opens the doorway 14,
Alternatively, according to the stay in which the lock 35 is locked at each position of the closing position to prevent the shutter 7 from switching, the shutter 7 can be prevented from being tampered with not only at the time of ventilation opening but also at the time of full opening. By using the shutter lock 30 or the second lock 45 and the lock 35 together, the occurrence of a fall accident due to mischief or an accident due to an erroneous operation can be prevented in a multiplex manner.

When the shutter lock 30 is formed integrally with the lock body 8, it is possible to avoid an increase in the number of components of the stay and to reduce the manufacturing cost of the stay. By connecting the restraining arm 5 to the arm pin 4 so as to be tiltable, the tilt of the surface between the swing end surface of the window 2 and the mounting surface of the guide frame 6 when the window 2 is opened and rocked is restrained. Since the light can be absorbed by the arm 5, the stay of the present invention can be applied to a swing window having one end supported by a hinge without any trouble.

In the stay in which the lock body 8 is provided on the guide frame 6, when the window 2 is opened from the closed position to the ventilation position, the slide pin 13 is engaged and captured by the engaging claw 23.
Therefore, if the wind has a certain intensity or less, the window 2 can be held at the ventilation position to prevent the window 2 from returning to the closed position by a slight wind.

When the window 2 in the ventilated state is closed, the restraint arm 5 moves to the closed end along the guide groove 12. Utilizing this operation, the claw piece 5 provided on the restraint arm 5 is used.
2 is brought into contact with the knob 9, and the shutter 7 that has been opened by mischief or the like is forcibly returned to the closed position, and the sliding operation is performed. Can be closed. That is, since the window 2 can be prevented from being fully closed while the shutter 7 is open, the window 2 opens to the fully open state even if the shutter 7 is illegally opened from the outside during ventilation open. Can be prevented and the security function can be strengthened. A fall accident due to mischief can be prevented. Claw piece 52 provided on restraint arm 5
Since the knob 9 is operated and the shutter 7 is returned and slid, the shutter 7 does not need to be added.
Can be returned to the closed position in conjunction with the closing operation of the window 2,
Although it is a window ventilation stay with a new function, its manufacturing cost can be reduced.

The passive piece 54 is disposed on the shutter 7, and when the shutter 7 is opened, the switching piece 57 causes the passive piece 54 to protrude into the transition locus of the slide pin 13. As in the above-mentioned stay, the shutter 7 can be operated simply by closing the window 2.
Can be forcibly returned to the closed position by the slide pin 13, and an accidental opening from outside or a fall accident due to mischief can be prevented. Switching mechanism 5 with reversibility
7, the passive piece 54 is displaced between the standby position and the passive position to ensure that the passive piece 54 crosses the transition trajectory of the slide pin 13 when the shutter 7 is opened. The shutter 7 can be returned and slid, and the shutter 7 can be returned to the closed position without any trouble, for example, even in a situation where the movement locus of the slide pin 13 varies due to wear of parts during long-term use.

A switching mechanism 5 comprising a switching groove 58 provided in the guide frame 6 and a switching pin 59 guided by the groove 58.
According to 7, the number of components can be reduced, and the manufacturing cost of the window ventilation stay having the reset function of the shutter 7 that has been opened can be reduced.

Passive piece 61 provided inside shutter 7
The window ventilation stay that slides along using the sliding motion of the check arm 5 also forcibly returns the shutter 7 in the open position by simply closing the window 2 as in the previous stay. You can reset by sliding. Therefore, even when the shutter 7 is illegally opened from the outside or the shutter 7 is switched to the open position by mischief, the shutter 7 is returned to the closed position by closing the window 2, and the window 2 is fully opened. Can be reliably prevented.

When the window 2 is closed, the restraining arm 5 is operated.
Of the passive piece 61 near the stroke end of the
The return slide operation is performed by sliding the shutter 7 back just before the window 2 is completely closed, so that unauthorized opening from the outside is impossible, and illegal opening operation using some kind of equipment is also eliminated. This is to enhance and improve the effect.

According to the stay in which the passive piece 61 is provided integrally with the lid wall 15 and this is returned and slid by the slide pin 13, compared with a stay in which the passive piece 54 is switched between the passive position and the standby position, the number of components is smaller. The number can be reduced to reduce the cost, and the stay can be prevented from being broken by the small number of the movable parts, so that the reliability can be improved. The recess 65 for receiving the slide pin 13 is provided at the inner edge of the guide groove 12 opposite to the entrance 14 because the slide pin 13 is moved by the passive piece 61 when the shutter 7 is opened and slid to fully open the window 2. Push down to the side of the concave portion 65 and release the shutter 7
The opening operation is performed without any trouble.

[0034]

(Embodiment 1) In FIG. 2, reference numeral 1 denotes an opening frame, and 2 denotes a window. The opening frame 1 and the window frame 2 are each formed by assembling a plastic strip or an aluminum strip into a square frame shape. The window 2 is supported at one end by a hinge fixed to the opening frame 1 and can swing open and close around a vertical hinge center. When the window 2 is closed, the window 2 can be fixed at the closed position by a lock or a latch (not shown). In order to keep the window 2 open in the ventilation position, the stay of the present invention is arranged between the opening frame 1 and the window vertical frame on the swinging tip side of the window 2.

In FIG. 1, a stay is composed of a base 3 mounted on the window 2 with screws and an arm pin 4 fixed to the base 3.
And a guide frame 6 fixed to the opening frame 1, a shutter 7 and a lock body 8 assembled in the guide frame 6, and a guide arm 6 outside the guide frame 6. And a knob 9 that slides the shutter 7.

As shown in FIG. 3, the guide frame 6 is formed by a press-formed frame having a vertically long U-shaped cross-section and an opening on the side of the mounting surface, and mounting leg pieces 11 are integrally provided above and below the frame. It is. A vertically long guide groove 12 is opened in the main surface wall of the guide frame 6, and the slide pin 13 fixed to the swinging tip of the restraining arm 5 is engaged and guided slidably up and down. At the lower end (closed end) of the guide groove 12, an entrance 14 is opened from the main surface wall of the guide frame 6 to the outdoor surface wall, and this is connected to the guide groove 12.

The shutter 7 is provided to open and close the entrance 14 to fully open the window 2 or to open the ventilation. The shutter 7 is formed of a U-shaped plastic molded product having a pair of front and rear walls sliding along both side walls of the guide frame 6 and a bottom wall connecting the both walls. Thus, the entrance 14 is opened and closed. The knob 9 is connected and fixed to the shutter 7 via two pins 16 inserted through the front wall on the indoor side (see FIG. 6). For this purpose, a pin groove 17 that allows the pins 16 to slide up and down is provided in the indoor wall of the guide frame 6. An arm 18 having the same width as the lid wall 15 is continuously provided at the upper end of the lid wall 15, and a slide projection 19 is provided on a side surface of the projected end on the outdoor side. This slide projection 1
In order to guide the slide 9, a slide groove 20 is provided in a surface wall of the guide frame 6 on the outdoor side. The knob 9 includes an operating portion 9a made of a plastic molded product and a connecting arm 9b formed by bending a metal plate into an L-shape. One end of the continuous arm 9b is fixed to the shutter 7 with a pin 16 by caulking.

The restraining arm 5 is formed of a band-shaped press fitting with both ends rounded, and a slide pin 13 is fixed to the lower end thereof, and the upper end is pivotally supported by the arm pin 4. The hole fitted to the arm pin 4 is formed slightly larger than the pin diameter.
When the window 2 is opened, the restraint arm 5 can be tilted with respect to the arm pin 4 as shown in FIG. Further, when the window 2 is closed, the arm pin 4 is used to return the restraint arm 5 to a parallel posture along the window vertical frame.
A compression coil type spring 21 is interposed between the flange portion of the protruding end and the restraining arm 5. The spring 21 also serves as a kick spring, and urges the restraining arm 5 in a direction of returning to the closed position (see an arrow in FIG. 7). The slide pin 1 is used to prevent the restraint arm 5 from hanging around when fully opened.
Reference numeral 3 denotes a roller 13a having a flange portion at a protruding end, and a salvis pin 13b for supporting the roller 13a. The pin 13b is caulked and fixed to the restraining arm 5 to rotatably support the roller 13a. The flange portion of the roller 13a is formed to have a larger diameter than the groove width of the guide groove 12, and the roller shaft portion is set to be smaller than the groove width of the groove. This is to allow the tilting of the restraint arm 5.

The lock body 8 is made of an inverted L-shaped plastic molded product having an engaging claw 23 projecting downward from one end of the base 8a, and a headed fitting shaft 24 is projected from the upper surface of the base 8a. . The lock body 8 is inserted into and engaged with the guide frame 6 from the side of the opening surface to be integrated. For this purpose, an engaging groove 25 for the fitting shaft 24 is provided over the upper mounting leg piece 11 and the frame end wall continuous with the upper mounting leg piece 11.

In the stay configured as described above, the shutter 7 is slid downward in the normal state, and the
The entrance 14 is closed. When the window 2 is opened from the closed position in this state, the slide pin 13 tries to exit from the entrance 14 to the outside, but is received by the lid wall 15. Therefore, as the window 2 is opened, the slide pin 13 has to slide upward along the guide groove 12, and at the upper end of the slide pin 13, after the engaging claw 23 is elastically deformed and climbs over, the engaging pin 23 engages. Be captured. Ventilate in this state.

When the window 2 is pulled toward the indoor side against the elasticity of the engaging claw 23, the slide pin 13 is
, The window 2 can be closed. When the window 2 is fully opened, the shutter 7 is slid upward through the knob 9 to open the entrance 14.
When the window 2 is opened in this state, the slide pin 13 goes out of the guide frame 6 from the entrance 14 without hindrance, so that the slide pin 13 hangs vertically and the upright wall 3a of the base 3 (see FIG. 7).
With the restraint arm 5 received by the
Can be opened to the limit position. When the window 2 is closed from the fully open position, the slide pin 13 enters the lower end side of the guide groove 12 through the entrance 14, and then the shutter 7 is slid downward to close the entrance 14 with the lid wall 15. It is possible to validate the use of the restraint arm 5 for towing.

When the window 2 is closed, the vertical frame and the horizontal frame of the window are provided with the seals 1a and 1a provided on the opening frame 1.
b (see FIG. 2) to maintain airtightness. In this embodiment, the connecting arm 9b of the knob 9 is located between the contact portion of one window vertical frame and the seal 1a, and the operating portion 9a facing the room is slid up and down with the window 2 closed. Thus, the shutter 7 can be opened and closed. As described above, according to the operation structure in which the connecting arm 9b made of a thin metal plate is disposed between the window 2 and the seal 1a, the opening frame 1
It is not necessary to form a notch or a groove for passing the connecting arm 9b through the hole, so that it is possible to save the labor of construction by that much, and to reduce the strength of the opening frame 1 caused by providing the notch or the groove. Can be prevented. It is also possible to prevent airtightness from being impaired.

(Embodiment 2) FIGS. 8 to 10 show Embodiment 2 relating to a stay. Here, a shutter lock 30 is provided integrally with the lock body 8 so that the shutter 7 can be locked and held by the shutter lock 30 so as not to be slidably opened when the window 2 is ventilated and opened.

The shutter lock 30 includes a V-shaped fulcrum 31 extending from the base 8a and a lock arm 32 projecting downward along the guide groove 12 from the fulcrum 31. A projection 33 that receives the tip of the arm 18 of the shutter 7 projects from the portion. As shown in FIG. 10, the arm 18 in the free state is bent in a gentle curvilinear shape, and the protrusion 33 is located in the sliding area of the arm 18. In this state, the shutter 7 can freely slide up and down.

However, as shown in FIG. 9, when the window 2 is ventilated and opened,
The flange portion a comes into contact with the lock arm 32, and the entire lock arm 32 is pressed and deformed with the fulcrum 31 as a tilting fulcrum. Therefore, the protrusion 33 approaches the outdoor side wall of the guide frame 6 and enters the sliding area of the arm 18. Therefore, even if it is attempted to slide the shutter 7 upward, the protruding end of the arm 18 is received by the projection 33, so that the shutter 7 can be prevented from being slid open due to mischief or the like. In this embodiment, the connecting arm 9b of the knob 9 is used.
A mounting piece 9c is provided continuously at the end of the
Was fixed by caulking to the inner bottom portion with a pin 16. The other parts are the same as those of the previous embodiment, so the same reference numerals are given and the description thereof is omitted. The same applies to the following embodiments.

(Embodiment 3) FIGS. 11 and 12 show Embodiment 3 relating to a stay. There, lock 3 on shutter 7
5, the shutter 7 cannot be slid and released unless the lock 35 is unlocked. The lock 35
It comprises a case part 36 integrally formed with the shutter 7, a lock bolt 37 guided and supported by the case part 36 so as to be able to slide back and forth, and a key shaft 38 for operating the lock bolt 37 to move back and forth. The key shaft 38 is rotatably supported by the case 36, has a key groove 40 at one end for inserting a key 39, and an eccentric pin 41 for operating the lock bolt 37 at the other end. . This pin 41 is engaged with a long hole 42 provided in the lock bolt 37.

As shown in FIG. 11, the lock bolt 37 engages with a lock hole 43 provided on the indoor side wall of the guide frame 6 to prevent the shutter 7 from being released from sliding. At that time, the lid wall 15 of the shutter 7 is in a state where the entrance 14 is closed. Therefore, there is no room for the shutter 7 to be released by the mischief.
Since the key 39 is common to all the stays, it is possible to save time and effort when the windows 2 are simultaneously fully opened.

(Fourth Embodiment) FIGS. 13 to 16 show a fourth embodiment relating to a stay. Here, a second lock 45 is provided on the shutter 7 so that the shutter 7 can be prevented from being slid by mischief or the like at each position where the lid wall 15 opens and closes the entrance 14 and at a position where it is closed. did. As shown in FIG. 16, the second lock 45 is formed of a vertically long plate-shaped plastic molded product, has a lock piece 46 at the upper end thereof, and has a fulcrum shaft 47 on the lower surface in the middle in the vertical direction. The fulcrum shaft 47 is supported by the shutter 7, and a compression coil spring 48 is arranged between the lower end of the second lock 45 and the front wall of the shutter 7, so that the entire second lock 45 is locked. Energize. In this lock biasing state, the lower half arm of the second lock 45 projects into the slide area of the slide pin 13. The lock piece 46 is engaged with one of the lock holes 49 and 50 provided on the indoor side wall of the guide frame 6. Therefore, the shutter 7 is configured such that the lid wall 15 is
Are locked and non-slidable at each of a position where the door is opened and a position where the entrance 14 is closed.

In the above state, when the window 2 is closed from the ventilation open position or closed from the fully open position, the slide pin 13 is located at the closed end of the guide groove 12 facing the entrance 14. At this time, the slide pin 13
Abuts against the lower half arm of the second lock 45 and swings the second lock 45 in a direction to release the lock against the urging force of the spring 48. That is, unless the window 2 is closed, the shutter 7 cannot be switched up or down. Therefore, similarly to the stay having the shutter lock 30, the shutter 7 can be prevented from being tampered with when the ventilation is opened, and the shutter 7 can be tampered with the window 2 fully opened. Thus, it is possible to prevent the lid wall 15 from switching to a state in which the entrance 14 is closed.

In order to further prevent the mischievous operation of the shutter 7 and increase the safety, in this embodiment, in each of the positions where the cover wall 15 opens the entrance 14 and the state where the entrance 14 is closed. The lock 35 can be locked. For this purpose, as shown in FIG. 15, lock holes 43 corresponding to the above-mentioned respective positions are provided above and below the indoor side wall of the guide frame 6. Further, insertion holes for the key 39 are provided at two upper and lower locations. The restraining arm 5 in this embodiment has a step near the upper end thereof, and further has a base 3
However, all of them correspond to differences in the sash structure, and there is no difference in the gist of the invention.

When the ventilation is opened, the knob 9 can be slid by inserting a hand from the outdoor side. Even with the shutter 7 provided with the lock 35, the unlocking can be tried. A reset function is added in order to cope with such an unauthorized opening of the shutter 7 from the outside or an opening operation of the shutter 7 due to mischief, so that the closing arm 5 and the slide pin 13 when closing the ventilated window 2 are operated. Using the movement, the shutter 7 can be returned from the open position to the closed position. A reset structure using the movement of the restraint arm 5 is shown in a fifth embodiment, and a reset structure using the movement of the slide pin 13 is shown in a sixth embodiment.

Fifth Embodiment FIGS. 17 to 19 show a fifth embodiment of a stay having a reset function. Although there are some differences in the structure, the basic structure of the stay is the same as the stay described in the first embodiment. The difference is that a claw 52 is provided at the swinging tip of the restraining arm 5 so that, for example, the shutter 7 that has been opened by mischief can be returned to the closed position by the claw 52 via the connecting arm 9 b of the knob 9. It is in the point which did. More specifically, the groove center line P in the middle of the guide groove 12 is deviated toward the knob 9, and the transition locus of the claw 52 in this groove deviated portion is the same as the open / close locus of the connecting arm 9 b of the knob 9. I made them overlap.

FIG. 17 shows the transition locus H of the tip of the claw 52.
Is indicated by a two-dot chain line. As can be understood from this locus H, when the shutter 7 is fully opened to the upper limit,
When the window 2 is closed from the ventilation position, the claw piece 52 is pushed out toward the knob 9 at the groove deviated portion, and the inclined edge thereof comes into contact with and engages with the connecting arm 9b. When the window 2 is further closed,
The shutter 7 is forcibly slid to the closing side in conjunction with the lowering of the restraining arm 5, and closes the entrance 14 with its lid wall 15 as shown in FIG. Therefore, even if the shutter 7 is illegally opened when the ventilation is opened, the window 2 cannot be fully opened. Note that the claw piece 52 releases the contact state with the connecting arm 9b immediately before the shutter 7 completely closes the entrance 14 or just before that. Therefore, after the window 2 has been fully closed, the shutter 7 is slid from the indoor side to open the entrance 14 so that the slide pin 13 can come out, and the window 2 can be fully opened.

In Embodiment 5 described above, the groove center line P of the guide groove 12 is shifted toward the knob 9 to increase the amount of engagement of the claw piece 52 with the connecting arm 9b, but this is not necessary. This is because if the protrusion amount of the claw 52 is adjusted, the shutter 7 can be returned and slid without any trouble even when the guide groove 12 is formed by a linear groove.

(Embodiment 6) FIGS. 20 to 24 show Embodiment 6 relating to the reset structure. In this embodiment, the shutter 7 is provided with a passive piece 54, which is lowered by the slide pin 13 so that the shutter 7 can be returned to the closed position and slid.

As shown in FIG. 24, the passive piece 54 is made of a plastic block having a horizontally long rectangular axis and is guided and supported by guide recesses 55 provided on the front and rear walls of the shutter 7 so that the passive piece 54 and the upper wall of the guide recess 55 are passively connected. Compression coil spring 56 disposed between spring receiving holes at both ends in the longitudinal direction of piece 54
And is urged toward the standby position. A reversibility is provided between the passive piece 54 and the guide frame 6 in order to displace the passive piece 54 from the standby position to the passive position crossing the transition trajectory of the pin 13 using the opening operation of the shutter 7. The switching mechanism 57 is provided.

The switching mechanism 57 includes a switching groove 58 provided on the inner and outer walls of the guide frame 6 along the moving direction of the slide pin 13.
And a switching pin 59 fixed to the passive piece 54 and both ends pivotally supported by the switching groove 58. The switching groove 58 is formed as a letter-shaped groove. When the shutter 7 is in the closed position, the switching pin 59 is held on the mounting surface side of the guide frame 6, and the passive piece 54 is positioned at the standby position.

At this time, the slide pin 13 can freely slide up and down between the shutter 7 and the main surface wall. However, when the shutter 7 is opened, the switching pin 59 is pushed up by the switching groove 58 against the urging force of the spring 56.
As a result, the passive piece 54 is held at the passive position across the movement locus of the slide pin 13. Therefore, when the window 2 is closed from the ventilation position as shown in FIG. 21, the slide pin 13 comes into contact with the passive piece 54, and the shutter 7 is moved to the closing side in this state. When the shutter 7 approaches the fully closed state, the passive piece 54 is returned to the standby position side as shown in FIG. 23, so that the slide pin 13 does not come into contact with the passive piece 54 thereafter. Therefore, when the window 2 is fully closed and the shutter 7 is opened, the entrance 14 is opened and the window 2 can be fully opened.

(Embodiment 7) FIGS. 25 to 27 show Embodiment 7 relating to a shutter reset structure. In this embodiment, the passive piece 6 is attached to the inner surface of the lid wall 15 of the shutter 7.
The shutter 7 can be slid to the closed position by lowering the shutter 7 with the slide pin 13.

As shown in FIG. 26, the passive piece 61 is composed of a chevron-shaped projection having a partially arcuate receiving surface 62 and an inclined guide surface 63, and is formed integrally with the lid wall 15. Passive piece 61
A relief recess 64 having a dimension equal to the projecting dimension of the passive piece 61 is provided on the wall surface facing the recess. When the window is closed from the ventilation position, the slide pin 13 comes into contact with the receiving surface 62 of the passive piece 61, and the shutter 7 is moved to the closing side in this state. At this time, as the timing at which the slide pin 13 contacts the receiving surface 62 is delayed, the opening gap between the window 2 and the opening frame 1 can be reduced, and there is no room for the shutter 7 to be opened from the outside. Therefore, as shown in FIG.
The passive piece 61 is provided on the closing start end side of the lid wall 15 so that the slide pin 13 contacts the passive piece 61 near the stroke end of the restraining arm 5.

When the window 2 is fully opened, the shutter 7 is opened and slid while the window 2 is closed, so that the entrance 1 is opened.
At this time, the passive piece 61 contacts and interferes with the flange of the slide pin 13 at the shaft end. In order to avoid this contact interference, a recess 65 is provided at the inner edge of the guide groove 12 facing the entrance 14. In other words, when the protruding end of the passive piece 61 comes into contact with the slide pin 13, FIG.
As shown by the imaginary line in FIG. 6, the slide pin 13 is moved toward the escape recess 64 so that the shutter 7 can be opened without any trouble.

In addition to the above embodiment, the shutter 2 is biased downward by a spring, and the window 2 is opened only when the shutter 7 is slid upward against the biasing force of the spring to keep the entrance 14 open. Full opening operation can be enabled. The shutter 7 can be arranged such that its lid wall 15 closes the entrance 14 when slid upward. In this case, the shutter 7 may be arranged on the outer surface of the guide frame 6. The stay of the present invention can be used by disposing it between the upper and lower surfaces of the window 2 and the opening frame. Further, the present invention can be applied to a case where the window 2 is a sliding window or a rotating window. In addition,
In each embodiment, the mounting state in which the entrance 14 is located at the lower end side of the guide frame 6 is shown. However, the mounting state can be reversed, that is, the entrance 14 is located at the upper end side of the guide frame 6.

[Brief description of the drawings]

FIG. 1 is a side view of a stay when ventilation is opened.

FIG. 2 is a plan view of a stay.

FIG. 3 is an exploded perspective view of a stay.

FIG. 4 is a side view in which a part of a guide frame is broken.

FIG. 5 is a side view of the guide frame in a state where an entrance is opened.

FIG. 6 is a sectional view taken along line AA in FIG.

FIG. 7 is a side view showing a support structure of the restraining arm.

8 is a sectional view taken along line BB in FIG.

FIG. 9 is a partially cutaway side view showing a second embodiment relating to a stay.

FIG. 10 is a side view of the second embodiment showing a posture in a free state of a shutter lock.

FIG. 11 is a partially cutaway side view showing a third embodiment related to a stay.

FIG. 12 is a sectional view taken along line CC in FIG. 11;

FIG. 13 is a partially cutaway side view showing a fourth embodiment relating to a stay.

FIG. 14 is a partially cutaway side view of a guide frame in a state where an entrance is closed in Example 4.

FIG. 15 is a front view of a stay according to a fourth embodiment.

FIG. 16 is a perspective view of a shutter according to a fourth embodiment.

FIG. 17 is a side view showing a fifth embodiment relating to a stay.

FIG. 18 is a side view of a main part of a guide frame showing a movement of a claw in the fifth embodiment.

19 is a sectional view taken along line DD in FIG.

FIG. 20 is a longitudinal sectional side view showing a sixth embodiment relating to the reset mechanism.

21 is a sectional view taken along line EE in FIG.

FIG. 22 is a longitudinal sectional side view showing a state of a passive piece at the time of reset in Embodiment 6.

FIG. 23 is a sectional view taken along line FF in FIG. 22;

FIG. 24 is an exploded perspective view showing a related structure between a shut and a passive piece in the sixth embodiment.

FIG. 25 is a side view illustrating a reset mechanism according to a seventh embodiment.

FIG. 26 is a vertical sectional side view showing a state of a passive piece at the time of reset in a seventh embodiment;

FIG. 27 is a sectional view taken along line GG in FIG. 26;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Opening frame 2 Window 5 Checking arm 6 Guide frame 7 Shutter 8 Lock body 12 Guide groove 13 Slide pin 14 Doorway 15 Cover wall

Claims (14)

[Claims] 1. A guide pin fixed to the opening frame, and a traction arm having one end pivotally supported by a window, a slide pin provided at a swinging tip of the traction arm. 13 is
A window ventilation stay which is engaged and guided by a guide groove 12 provided in the guide frame 6 so as to be reciprocally slidable. The guide frame 6 has an entrance 14 through which a slide pin 13 can enter and exit when the window 2 is closed. The shutter 7 is continuously opened at the closed end side of the guide groove 12, and is guided and supported by a guide frame 6 so as to be reciprocally slidable. A window ventilation stay that is provided on the frame 6 and allows the slide pin 13 to enter and exit the entrance 14 only when the lid wall 15 provided on the shutter 7 opens the entrance 14. 2. facing the sliding area of the shutter 7,
A shutter lock 30 is provided to prevent the shutter 7 from being slid open. The shutter lock 30 is provided so as to be able to change its posture between a lock position for receiving the shutter 7 and an unlock position for allowing the shutter to slide open. 2. The window ventilation according to claim 1, wherein the shutter is held in an unlocked position in a normal state, and the slide pin is circumscribed to the shutter lock in an open-ventilation state to hold the shutter lock in the locked position. Stay for 3. A second lock 45 for engaging the guide frame 6 with the shutter 7 to prevent the shutter 7 from sliding back and forth.
The second lock 45 is supported by the shutter 7 such that the second lock 45 can be displaced between a lock position for engaging the guide frame 6 and a lock release position for releasing the engagement with the guide frame 6. In the second lock 45, the lid wall 15 of the shutter 7 is
At each of the position where the shutter 4 is opened and the position where the entrance 14 is closed, the slide pin 13 that engages with the guide frame 6 and prevents the slide displacement of the shutter 7 is engaged with the guide groove 12. Doorway 1
The window ventilation according to claim 1, wherein the second lock (45) is unlocked by the slide pin (13) against the urging force of the spring (48) only in the window closed state facing the window (4). Stay for 4. An arm pin 4 for supporting a restraining arm 5 is fixed to a base 3 mounted on a window 2, and the restraining arm 5 is connected to the arm pin 4 so as to be tiltable, and between the two. The window ventilation stay according to claim 1, 2 or 3, wherein the stay is biased to move in a direction in which the spring 21 is disposed in contact with the base 3 and in a direction to return to the closed position. 5. A lock body 8 having an elastically deformable engaging claw 23 is provided near the ventilation end side of the guide groove 12. When the window 2 is opened to the ventilation position, the slide pin 13 is provided. The stay for window ventilation according to claim 1, 2, 3, or 4, wherein the stay is engaged and captured by a lock body 8. 6. A lock 35 which engages between the guide frame 6 and the shutter 7 to prevent the shutter 7 from sliding open.
The lock 35 is provided so as to be switchable between a locked state and an unlocked state by a detachable key 39 only when the lid wall 15 of the shutter 7 closes the entrance 14. 2,
The stay for window ventilation according to 3, 4 or 5. 7. A lock 35 which engages between the guide frame 6 and the shutter 7 to prevent the shutter 7 from sliding open.
The lock 35 is unlocked with a detachable key 39 at each of a position where the lid wall 15 of the shutter 7 opens the entrance 14 and a position where the lid wall 15 closes the entrance 14. The stay for window ventilation according to claim 1, 2, 3, 4, or 5, which is provided so as to be switchable between a locked state and a locked state. 8. A stay for window ventilation according to claim 5, wherein the shutter lock is formed integrally with the lock body. 9. A claw piece 52 is provided at the swinging tip of the restraint arm 5 for abuttingly engaging with the knob 9 to slide the opened shutter 7 back to the closed position and to slide the shutter 7 to the closed position. The shutter (7), which has been opened, is operated to return to the closed position with the claw (52) via the knob (9) in conjunction with the closing operation of the window (2).
Or the stay for window ventilation described in 5. 10. A passive piece (54) is arranged on the inner surface of the shutter (7) facing the transition locus of the slide pin (13), the passive piece (54) being a passive position crossing the transition locus of the slide pin (13), and a transition locus of the slide pin (13). The shutter is guided and supported by a shutter so as to be able to reciprocate between a standby position where the shutter is retracted to the outside and a passive piece is interposed between the guide frame and the passive piece in accordance with the opening slide displacement of the shutter. A reversible switching mechanism 57 for displacing the 54 to the passive position is provided. The shutter 7 that has been opened at the time of ventilating release is operated by the slide pin 13 in conjunction with the closing operation of the window 2. 6. A stay for window ventilation according to claim 1, wherein the stay is operated to return to a closed position via a slide. 11. A switching mechanism comprising a switching groove provided on the guide frame along a moving direction of the slide pin, and a switching pin mounted on the passive piece and displaced by the switching groove. The stay for window ventilation according to claim 10, wherein the passive piece (54) is biased to move toward the standby position by a spring (56). 12. A traction arm 5 or a slide pin 1 is provided on the inner surface of the shutter 7 facing the transition trajectory of the traction arm 5.
3 is provided, and the shutter 7 that has been opened when the ventilation is opened is moved to the closed position via the passive piece 61 by the restraining arm 5 that slides and displaces in conjunction with the closing operation of the window 2. The stay for window ventilation according to claim 1, 4 or 5, wherein a return slide operation is performed. 13. A passive piece 61 is provided at the closing start end side of the shutter 7, and near the stroke end of the restraining arm 5 when the window 2 is closed, the passive piece 61 is moved to the closing position side by the restraining arm 5. The stay for window ventilation according to claim 12, which is operated by a return slide operation. 14. On the inner surface of the lid wall 15 of the shutter 7, a passive piece 61 which is slid and returned by the land pin 13 is provided integrally with the lid wall 15. And a concave portion (65) for receiving the slide pin (13).
The stay for window ventilation according to 2 or 13.