JP5268577B2 - Stay for window ventilation - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stay for a ventilating window allowing a person to take refuge and request rescue through the window smoothly in the case of emergency by immediately fully opening the window held in a ventilation position without returning it to a fully closed position. <P>SOLUTION: The stay for ventilating window is provided with a checking arm 6 having one end connected with the window 2 to swing, a guide frame 3 fixed to an opening frame 1, and a slider 4 guided by the guide frame 3 to reciprocate and slide freely. The other end of the checking arm 6 and the slider 4 are mutually connected by a connection pin 13 fixed to the checking arm 6. The slider 4 is provided with a slide frame 17 having a connection hole 22 for the connection pin 13. A lock mechanism for locking and holding the connection pin 13 engaged with the connection hole 22 to prevent separation from each other is assembled to the slider 4. When locking by the lock mechanism is released while a position of the window 2 is held at a ventilation position by the checking arm 6, the connection state of the checking arm 6 and the slider 4 is released to open the window 2 fully and immediately from the ventilation position. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a stay for window ventilation that can restrict the opening of a window at a ventilation position by a check arm, and can release the opening restriction function of the check arm in an emergency to fully open the window.

  This type of window ventilation stay is known, for example, from Patent Document 1. There, one end of the check arm is pivotally connected to the window, a slide pin fixed to the other end of the arm is slid and guided by a guide frame attached to the opening frame, and the window is closed between the closed position and the ventilation position. It can be opened and closed. The guide frame is formed with a guide groove for sliding the slide pin and an entrance / exit for allowing the slide pin to enter and exit the guide groove. The doorway can be opened and closed with a shutter built into the inner surface of the guide frame. In the state where the doorway is opened, the slide pin can accompany the window to enter and exit the guide frame, so that the connection state between the check arm and the guide frame can be released. Therefore, the window can be fully opened from the closed position.

  The stay for window ventilation in the present invention can release the opening restriction function by the check arm in an emergency and can fully open the window. This type of device is disclosed in Patent Document 2. There, the case that houses the lock structure is fixed to the opening frame, and the connecting shaft fixed to the check arm is locked and held by the previous lock structure to restrict the window from being opened beyond the ventilation opening position. doing. In an emergency, the solenoid housed in the case is actuated to switch the lock structure to the unlocked state, and the engagement between the connecting shaft and the lock plate is released, so that the window is fully opened from the ventilation opening position and the window is opened. You can evacuate or request rescue to the outside. In case of a power failure at the same time as the occurrence of an emergency, the lock structure can be unlocked with a release key.

Japanese Patent No. 3505641 (paragraph number 0017, FIG. 2) JP-A-11-93491 (paragraph numbers 0021 to 0022, FIG. 7)

  The stay for window ventilation in Patent Document 1 can fully open the window by switching the shutter to open the entrance and exiting the connection between the check arm and the guide frame. However, in a situation where it is necessary to escape from the window in an emergency, not everyone can open the window according to a predetermined procedure. In order to fully open the window in the ventilated state, it is necessary to operate the shutter to open the slide pin doorway, and then close the window in the ventilation position and then open it again. Under severe circumstances, a series of operations may not be performed calmly. In particular, the act of closing and operating the window in the ventilation position is an operation that conflicts with the psychology of the evacuees who want to open the window as soon as possible and escape from the building, resulting in a great psychological resistance.

  In that regard, the stay for window ventilation in Patent Document 2 switches the lock structure to the unlocked state by, for example, turning on the emergency escape button provided in the vicinity of the window or in the management room, and the check arm. The opening restriction function by can be released and the window can be fully opened. However, since it is necessary to unlock the lock structure with the release key in the event of a power failure, it is necessary to recognize in advance the storage location of the release key and how to use the release key, and receive training and training in advance. It is useless for users who are not.

  The object of the present invention is to make it possible to suddenly fully open the window held in the ventilation position by the check arm without returning it to the fully closed position. Therefore, anyone can smoothly escape from the window in an emergency. It is to provide a stay for window ventilation that can be performed. The object of the present invention is to enable a person who has not undergone training or training to quickly and easily fully open the window at the ventilation position by releasing the connection state of the check arm and the slider with one touch. It is to provide a stay for window ventilation that anyone can make evacuation and rescue requests smoothly.

The window ventilation stay according to the present invention is disposed between the opening frame 1 and the groove portion of the window 2 to restrict the window 2 from being opened beyond the ventilation opening position. The stay for window ventilation includes a check arm 6 whose one end is swingably connected to the window 2, a guide frame 3 fixed to the opening frame 1, and a slider that is slidably guided by the guide frame 3. 4 is provided. The other end of the check arm 6 and the slider 4 are connected via a connecting pin 13 attached to the check arm 6. The slider 4 includes a slide frame 17 having a connection hole 22 for the connection pin 13. A locking mechanism for holding lock the coupling pin 13 engaged with the connecting hole 22, assembled to the slider 4. In a state where the window 2 is held at the ventilation position by the check arm 6, the lock mechanism can be unlocked to release the connection state of the check arm 6 and the slider 4 . The lock mechanism includes a slide knob 35, a lock plate 36 that moves along with the slide knob 35, and an engagement groove 14 that is formed in a circular shape near the end of the connecting pin 13. The lock plate 36 is formed with a lock hole 46 that engages and disengages with the engagement groove 14 and an escape hole 47 that allows the connecting pin 13 to enter and exit. The slide knob 35 is supported by the slide frame 17 so as to be slidably switchable, and a lock position where the lock hole 46 engages with the engagement groove 14 of the connection pin 13 and a lock release position where the escape hole 47 surrounds the periphery of the connection pin 13. And slide switching.
The slider 4 includes a slide frame 17 made of a press fitting with a hat-shaped cross section, and a pair of slide bodies 18 that are mounted and fixed to the side legs 21 of the slide frame 17 and are slidably guided by the guide grooves 7 of the guide frame 3. Including and configuring. The slide knob 35 includes a plate-like base 37 that is inserted into a space in the frame from one end opening of the slide frame 17, an L-shaped operation unit 38 that is provided continuously at one end of the base 37, and a base 37 and a pair of restricting pieces 39 that are formed on both sides of the side portion. The slide limit of the restricting piece 39 is defined by the guide recess 28 provided in the slide body 18, and the slide knob 35 is mounted on the slide frame 17 so as to be slidable and not separable.

  The slide knob 35 is assembled to the open end of the slide frame 17 so as to be slidable in the same direction as the slide direction of the slider 4. In a ventilated open state where the slider 4 is received by the stopper block 10 provided at the end of the guide frame 3, the lock mechanism can be unlocked by pushing the slide knob 35 toward the stopper block 10 side. .

  The slide knob 35 is provided with a cam piece 41 for pushing out the connecting pin 13 from the connecting hole 22. When the slide knob 35 is switched from the locked position to the unlocked position and the engagement state between the lock hole 46 and the engagement groove 14 is released, the connection pin 13 is moved from the connection hole 22 by the cam piece 41. The push-out operation is performed to assist the release operation of the check arm 6 and the slider 4.

  A connecting hole 22 is opened in the outer end wall 20a of the hat-shaped slide frame 17, and a slip plate 19 having a small sliding resistance is mounted on the inner surface of the outer end wall 20a. A pin opening 40 allowing the connecting pin 13 to enter and exit and the cam piece 41 are formed in the base 37 of the slide knob 35. An assembly hole 42 for the lock plate 36 is formed in the outer end wall of the operation portion 38 of the slide knob 35. The lock plate 36 is a metal leaf spring body integrally provided with a lock wall 44 in which a lock hole 46 and a relief hole 47 are formed, and a spring arm 45 bent continuously at one end of the lock wall 44 into a Z shape. Consists of. In a state where the lock plate 36 is assembled to the slide knob 35, the lock wall 44 circumscribes the base 37, the spring arm 45 is joined to the inner surface of the operation portion 38, and the free end of the spring arm 45 is engaged with the assembly hole 42. Match.

In the present invention, a stay for window ventilation is constituted by the check arm 6, the guide frame 3, and the slider 4 guided so as to be freely slidable by the guide frame 3, and the check arm 6 and the slider 4 are connected to the check arm 6. It connected via the connecting pin 13 with which it attached to. Sonouede, the lock mechanism assembled in the slider 4, the coupling pin 13 engaged with the connecting hole 22 to allow lock retention. In an emergency or the like, the lock mechanism is unlocked to release the connection state of the check arm 6 and the slider 4 so that the window 2 can be fully opened. Therefore, according to the stay for window ventilation according to the present invention, it is not necessary to return the window 2 held in the ventilation position by the check arm 6 to the fully closed position, and suddenly fully opens to evacuate from the window in an emergency. And anyone can make a rescue request quickly and smoothly. Further, since the connecting pin 13 is unlocked by operating the locking mechanism with the window 2 ventilated and opened, it is clearly confirmed visually that the connecting pin 13 is unlocked and the check arm 6 can be separated from the slider 4. Therefore, the connection release operation of the check arm 6 can be performed accurately.

  When the slide knob 35, the lock plate 36, the engagement groove 14 of the connecting pin 13 and the like constitute a lock mechanism and the slide knob 35 is slidably guided by the slide frame 17 so as to be locked or unlocked, the slide knob 35 is pushed. The connecting pin 13 can be switched between the locked state and the unlocked state by a simple operation only by pulling and sliding. That is, the connection state of the check arm 6 and the slider 4 can be released with a single touch, and the window 2 in the ventilation position can be fully opened quickly and easily even under tight conditions. Further, since the slide knob 35 is assembled to the slider 4 to which the connecting pin 13 is connected, it is easy to intuitively recognize that the slide knob 35 and the check arm 6 are related. Therefore, even if the evacuees do not know the unlocking method, the possibility of being able to fully open the window 2 by switching the slide knob 35 and separating the connecting pin 13 while repeating trial and error is increased. Furthermore, even a person who has not undergone training or training can release the connected state of the check arm 6 and the slider 4 with one touch, and can quickly and easily fully open the window 2 at the ventilation position, and evacuate. And anyone can make a rescue request smoothly.

  According to the stay that unlocks the lock mechanism by pushing the slide knob 35 toward the stopper block 10 in the ventilation open state, the slide knob 35 can be moved in a state where the slider 4 is received by the stopper block 10 so as not to move. Since the switching operation can be performed, the switching operation of the slide knob 35 to the unlocked position can be performed more reliably and quickly.

  According to the stay in which the cam piece 41 is provided on the slide knob 35 and the slide knob 35 is switched and the connecting pin 13 is pushed out of the connecting hole 22 by the cam piece 41, the connection release operation of the check arm 6 and the slider 4 is released. Is supported by the cam piece 41, and the check arm 6 can be separated from the slider 4 more reliably. Further, in conjunction with the release of the engagement state between the lock hole 46 and the engagement groove 14, the connecting pin 13 is pushed out from the connecting hole 22 by the cam piece 41, so that the refugee simply pushes the slide knob 35. By simply operating, the unlocking operation of the connecting pin 13 and the separating operation from the connecting hole 22 can be performed at once and easily. Furthermore, after the emergency situation has subsided, the connecting pin 13 is inserted into the connecting hole 22 and engaged. At this time, the protruding end of the connecting pin 13 comes into contact with the inclined surface of the cam piece 41, and the slide knob 35. Since the window 2 is restored to the normal use state, the engagement groove 14 of the connecting pin 13 is locked and locked by the lock hole 46.

  In the state in which the slider 4 is configured by the slide frame 17 and the pair of slide bodies 18 and the slide knob 35 is assembled to the slide frame 17, the guide recess 28 provided in the slide body 18 is used for the regulation piece 39 of the slide knob 35. According to the stay which defines the slide limit, it is not necessary to use a fastening body such as a screw or a rivet, and the slide knob 35 can be slidably switched with respect to the slider 4 and can be mounted in a non-separable manner. Therefore, it is possible to reduce the number of components of the stay, further reduce the man-hours required for assembly, and reduce the cost of manufacturing the stay.

  When the slip plate 19 having a small sliding resistance is mounted on the inner surface of the outer end wall 20a of the slide frame 17 having a hat-shaped cross section, the lock plate 36 assembled to the slide knob 35 is received by the slip plate 19 and the slide operation of the slide knob 35 is performed. Can be done smoothly. The lock wall 44 and the spring arm 45 bent in a Z-shape form the lock plate 36. When the lock plate 36 is assembled to the slide knob 35, the lock wall 44 circumscribes the base 37, and the spring arm 45 When the free end of the spring arm 45 is engaged with the assembly hole 42 by joining to the inner surface of the operation portion 38, the assembled state can be maintained only by the elasticity of the lock plate 36. Therefore, there is no need to use a fastening member such as a separate screw, and the stay manufacturing cost can be further reduced.

(Example) FIGS. 1-10 shows the Example of the stay for window ventilation based on this invention. In FIG. 2, reference numeral 1 denotes an opening frame, and reference numeral 2 denotes a window. The window frames of the opening frame 1 and the window 2 are each configured by assembling aluminum strips or plastic strips into a square frame shape. The window 2 is supported by a hinge (not shown) and can swing and open. When the window 2 is closed, the window 2 can be fixed with a handle lock 8 so as not to be opened. In order to restrict the opening of the window 2 beyond the ventilation position, according to the present invention, between the vertical frame of the opening frame 1 and the vertical frame on the swinging tip (groove portion) side of the window frame. Place a stay for window ventilation.

  The stay for window ventilation is connected to the window 2 through a fastening frame 5 and a longitudinal guide frame 3 fixed to the opening frame 1, a slider 4 guided and supported by the guide frame 3 so as to be slidable up and down. The other end is constituted by a check arm 6 connected to the slider 4. The guide frame 3 is formed of a press fitting made of a stainless steel plate material having a C-shaped cross section, and includes a guide groove 7 that slides and guides the slider 4 on the inner surface thereof. Stopper blocks 10 that define the sliding limit of the slider 4 are fixed to the upper and lower ends of the guide groove 7 by caulking. The stopper block 10 is made of a molded product made of polyacetal, and is fastened and fixed to the opening frame 1 with screws 11 together with the guide frame 3 (see FIG. 3).

  The check arm 6 is made of a stainless steel strip-shaped press fitting whose both ends are rounded. The upper end of the check arm 6 is connected to the previous fastening frame 5 via a swing pin 12 and the lower end is connected to a round shaft. 13 is fixed by caulking. The check arm 6 is swingably supported by a swing pin 12, and when the window 2 is opened to the ventilation position, the swing pin 12 tilts and the opening frame 1 and the fastening frame 5 become non-parallel. (See FIG. 2). An engaging groove 14 is formed in a circular shape near the protruding end of the connecting pin 13. By inserting and connecting the connecting pin 13 to the slider 4, when the window 2 is opened from the closed position to the ventilation position, the slider 4 rises and slides following the opening operation of the window 2.

  In FIG. 5, the slider 4 includes a stainless steel slide frame 17, a pair of slide bodies 18 assembled to the slide frame 17, and a slip plate 19 assembled inside the slide frame 17. The slide frame 17 is provided with a vertically long connecting frame 20 whose upper end is closed by a bent wall, and a pair of side legs 21 that are formed on both sides of the long side portion of the connecting frame 20. It consists of a hat-shaped press fitting. A circular connecting hole 22 that engages with the connecting pin 13 is formed in the upper and lower center of the outer end wall 20a of the connecting frame 20, and a rectangular locking hole 23 for mounting the slip plate 19 is formed on the upper and lower sides thereof. It is. The upper and lower central portions of the side legs 21 are divided by a notch 24.

  The sliding body 18 is formed of a vertically long plastic molded product having a bowl-shaped cross section, and a pair of upper and lower grooves 26 that are fitted on the side legs 21 are formed in the middle in the thickness direction. A partition wall 27 is provided between the upper and lower grooves 26 to engage with the notch 24 and prevent the sliding body 18 from shifting in the vertical direction. Guide recesses 28 are formed above and below the surface wall that slides with the groove bottom of the guide groove 7 described above. The reason why the guide recesses 28 are provided on the upper and lower sides is that the sliding body 18 is used for both the left side and the right side as viewed in FIG. As shown in FIG. 8, the sliding body 18 slides up and down along the guide groove 7 while being fitted in the side groove of the guide groove 7.

  The slip plate 19 is made of a strip-shaped plastic molded product, and a circular connection hole 30 that engages with the connection pin 13 is formed at the upper and lower centers thereof, and rectangular locking projections 31 and 32 are formed at the upper and lower sides thereof. . Of the upper and lower locking projections 31, 32, the protruding size of the lower locking projection 32 is set larger than the protruding size of the upper locking projection 31. In a state where the slip plate 19 is incorporated in the inner surface of the connecting frame 20 of the slide frame 17, the upper and lower locking projections 31 and 32 engage with the locking hole 23, and the slip plate 19 is held and fixed so as not to move up and down. In this mounted state, the protruding end of the lower locking projection 32 slightly protrudes from the surface of the outer end wall 20a. The sliding body 18 and the slip plate 19 are made of a molded product made of a plastic material having a small sliding resistance and high wear resistance, and are made of, for example, polyacetal.

  A lock mechanism is provided on the slider 4 in order to lock and hold the connecting pin 13 inserted and connected to the connecting holes 22 and 30 of the slide frame 17 and the slip plate 19 in an inseparable manner. The lock mechanism includes a slide knob 35 that is assembled to the slider 4, a lock plate 36 that moves along with the slide knob 35, and an engagement groove 14 provided in the connecting pin 13.

  The slide knob 35 includes a plate-like base 37 that is long in the vertical direction, an L-shaped operating portion 38 that is continuous with the lower end of the base 37, a pair of restricting pieces 39 that are formed on both sides of the long side portion of the base 37, and the like. It has. A square pin opening 40 that allows the connecting pin 13 to enter and exit is formed in the upper part of the base 37, and a wedge-shaped cam piece 41 is formed on the lower peripheral surface of the opening. In addition, an assembly hole 42 for the lock plate 36 is formed in a rectangular shape in the outer end wall 38a of the operation portion 38.

  The lock plate 36 is formed of a metal leaf spring body integrally provided with a strip-shaped lock wall 44 that is long in the vertical direction and a spring arm 45 that is bent continuously in a Z shape at the lower end of the lock wall 44. The lock wall 44 is formed with a tunnel cross-sectional lock hole 46 that engages with the engagement groove 14 and a relief hole 47 wider than the lock hole 46. A notch 48 that engages with the proximal end portion of the cam piece 41 is formed at the lower end of the escape hole 47.

  In a state in which the lock plate 36 is assembled to the slide knob 35, the lock wall 44 circumscribes the base 37, the spring arm 45 is joined to the inner surface of the operation portion 38, and the free end of the spring arm 45 is engaged with the assembly hole 42. Match. The slide knob 35 to which the lock plate 36 is assembled is integrated with the slide frame 17 by inserting the base 37 into a space in the frame from the lower end opening of the slide frame 17. Specifically, as shown in FIG. 10, after the slip plate 19 is assembled to the slide frame 17, the slide knob 35 to which the lock plate 36 is assembled as described above is assembled to the slide frame 17. Finally, the sliding body 18 is assembled to the side legs 21 of the slide frame 17, and the regulating piece 39 is sandwiched between the guide recesses 28 of the pair of sliding bodies 18 from both sides.

  As described above, in the state where the slide knob 35 is assembled to the slide frame 17, the slide knob 35 can be slid up and down to be slid to the lower locked position and the upper unlocked position. The sliding range (sliding limit) of the restricting piece 39 at this time is defined by the guide recess 28, and the slide knob 35 is in a state of being attached to the slide frame 17 so as not to be separated.

  The slider 4 with the slide knob 35 incorporated therein is fitted into the guide groove 7 of the guide frame 3, and the stopper block 10 is caulked and fixed to the guide frame 3 in this state, whereby the guide frame 3, the slider 4 and the lock are locked. A mechanism or the like can be handled as one unit component. Therefore, when assembling the stay of the present invention to the opening frame 1 and the window 2 at the construction site, either the guide frame 3 or the fastening frame 5 to which the check arm 6 is connected is attached to the opening frame 1 or the window 2. After the assembly, it is only necessary to position and fix the other of the connecting pins 13 in a state where the connecting pins 13 are connected to the slider 4, so that a series of mounting operations can be performed more easily and accurately.

  When the slide knob 35 is slid to the lock position side in a state where the connection pin 13 is inserted and engaged with the connection holes 22 and 30, the lock hole 46 is engaged with the connection pin 13 as shown in FIGS. By engaging with the groove 14, the connecting pin 13 can be locked and held so as not to come off. When the slide knob 35 is slid upward from the lock state to the unlock position as shown in FIG. 1, the engagement state between the lock hole 46 and the engagement groove 14 is released, and the periphery of the connecting pin 13 is moved. The relief hole 47 is surrounded, and the connection pin 13 can be extracted from the connection holes 22 and 30. When the slide knob 35 is further pushed up beyond the unlocking position, the inclined surface of the cam piece 41 comes into contact with the protruding end of the connecting pin 13, and the connecting pin 13 is pushed out in the direction of coming out of the connecting holes 22 and 30. The operation of releasing the connection between the check arm 6 and the slider 4 can be assisted.

  In a state where the slide knob 35 is in the locked position, the bent portion 45a of the spring arm 45 is in contact with the lower end edge of the slide frame 17 as shown in FIG. However, when the slide knob 35 is pushed from the locked position to the unlocked position side, the previous bent portion 45a rides on the outer end wall 20a against its own elasticity and generates an appropriate frictional resistance. When the slide knob 35 is further pushed up beyond the unlocking position, the restricting piece 39 is received at the upper end of the guide recess 28 and restricts the slide knob 35 from sliding further upward. At this time, the bent portion 45a is in contact with the lower edge of the lower locking projection 32 (see FIG. 1). In a state in which the slide knob 35 is unlocked, the slider 4 is received by the upper stopper block 10, so that the slide knob 35 can be moved to the unlock position more reliably and quickly.

  In a normal use state, the window 2 is ventilated and opened with the slide knob 35 switched to the lock position side. In the state where the window 2 is closed, as shown in FIG. 4, the members constituting the window ventilation stay are placed in the gap between the vertical frame of the opening frame 1 and the groove of the window 2. At this time, the slider 4 is positioned below the guide frame 3. As shown in FIG. 3, when the window 2 in the closed state is ventilated and opened, the slider 4 is received by the upper stopper block 10, and the check arm 6 follows the window 2 and protrudes to the outdoor side. The gap between the groove of the window 2 and the opening frame 1 at this time is set to about 15 cm in order to prevent dropping.

  If, for example, a fire occurs at the time of opening the ventilation as described above and it cannot be blamed from the emergency exit or emergency stairs, it is unavoidable to open the window 2 fully and request rescue from the outside, or use an evacuation device. Use to escape. In such an emergency, the connecting state of the connecting pin 13 and the slider 4 can be released by pushing the slide knob 35 upward as shown in FIG. Since the check arm 6 in the state where the connecting pin 13 is separated from the slider 4 is released from the restraint by the opening frame 1, it can be immediately fully opened.

  As described above, according to the window ventilation stay of the present invention, in an emergency, the connection state of the check arm 6 with the opening frame 1 can be released with one touch, and the window 2 can be suddenly fully opened from the ventilation opening position. Anyone can evacuate from the window 2 or request a rescue in an emergency in a prompt and smooth manner. In addition, since it is possible to save the trouble of returning the window from the ventilation position to the fully closed position, which is indispensable in the conventional window ventilation stay, the evacuees who want to escape from the building by opening the window 2 as soon as possible. In conformity with psychology, the window 2 can be immediately opened from the ventilation position to the fully open position. Furthermore, since the operation of releasing the connection between the check arm 6 and the slider 4 can be performed by a one-touch operation by simply pushing the slide knob 35, the window 2 that is in the ventilation position can be quickly and easily even under tight conditions. Can be fully opened. Moreover, even if it is a person who has not received training or training, the connection state of the check arm 6 and the slider 4 is released with one touch, and the window 2 in the ventilation position is fully opened quickly and easily. Smooth evacuation and rescue requests. As is apparent from the above description, the window ventilation stay of the present invention is suitable for application to an emergency window or an emergency door.

  By the way, the window 2 can be used as an emergency exit at an easily visible place on the indoor side of the opening frame 1, and when the slide knob 35 is pushed upward after opening the window 2 to the ventilation position. It is advisable to arrange a display board or a seal on which the window 2 can be fully opened. After the emergency situation has subsided, the window 2 is positioned on the indoor side from the ventilation position, the restraining arm 6 is pulled and the connecting pin 13 and the connecting hole 22 are aligned, and the connecting pin 13 is inserted into the connecting hole 22. . At this time, the protruding end of the connecting pin 13 contacts the inclined surface of the cam piece 41, and the slide knob 35 is slid downward to switch to the locked position. Thereby, the engagement groove 14 of the connecting pin 13 is locked and fixed by the lock hole 46, and the window 2 can be quickly restored to a normal use state.

  A window ventilation stay is placed between the vertical frame of the opening frame 1 and the vertical frame on the groove side of the window frame to regulate the amount of window opening when opening the ventilation. Regardless of the difference, there is an advantage that a stay for window ventilation can be applied to all windows 2.

  In the above embodiment, the slip plate 19 is disposed on the inner surface of the slide frame 17, but the slip plate 19 can be omitted. In the above embodiment, the case where the window 2 is swingably opened and closed has been described. However, the stay of the present invention can also be applied to the window 2 adopting another opening / closing structure. For example, the stay of the present invention can be applied between the groove of the window 2 and the opening frame 1 even when the window 2 is opened and closed by a sliding hinge (six bar hinge). Further, the stay of the present invention can be applied to a protruding window, an inward falling window, and the like.

  In addition to the switching operation with the slide knob 35, the locking structure for the connecting pin can be switched with a swing lever or a push button. A compression coil spring is disposed between the fastening frame 5 and the check arm 6 around the swing pin 12, and the check arm 6 can be tilted and biased in a direction in which the connecting pin 13 comes out of the connecting hole 22. . In that case, the check arm 6 can be separated from the slider 4 simultaneously with the unlocking. By using the outer end wall 38 of the operation part 38 of the slide knob 35, an arrow indicating the pushing direction of the slide knob 35, a character display, or the like can be added. If necessary, the slide knob 35 and the lock plate 36 can be integrally formed.

It is a vertical front view which shows the lock structure of a slider and a connection pin. It is a top view of the stay for window ventilation of the state which opened and ventilated the window. It is a side view of the stay for window ventilation of the state which ventilated and opened the window. It is a front view of the stay for window ventilation in the state which closed the window. It is a disassembled perspective view of a slider and a lock structure. It is the sectional view on the AA line in FIG. It is a vertical front view of a slider and a lock structure. It is the BB sectional view taken on the line in FIG. It is CC sectional view taken on the line in FIG. It is a cross-sectional top view which shows the assembly procedure of a slider and a lock structure.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Opening frame 2 Window 3 Guide frame 4 Slider 6 Checking arm 13 Connecting pin 14 Engaging groove 17 Slide frame 18 Sliding body 22 Connecting hole 35 Slide knob 36 Lock plate 41 Cam piece 46 Lock hole 47 Escape hole

Claims (4)

A window ventilation stay that is disposed between the opening frame (1) and the groove portion of the window (2) and restricts the window (2) from being opened beyond the ventilation opening position,
A check arm (6) whose one end is swingably connected to the window (2), a guide frame (3) fixed to the opening frame (1), and a guide frame (3) slidably guided. And a slider (4) to be
The other end of the check arm (6) and the slider (4) are connected via a connecting pin (13) attached to the check arm (6).
The slider (4) comprises a slide frame (17) with a coupling hole (22) for the coupling pin (13),
The locking mechanism of the coupling hole connecting pin engaged with (22) (13) holding lock is has been assembled to the slider (4),
In a state where the window (2) is held at the ventilation position by the check arm (6), the lock mechanism can be unlocked to release the connected state of the check arm (6) and the slider (4). And
The locking mechanism includes a slide knob (35), a lock plate (36) that moves along with the slide knob (35), and an engagement groove (14) formed near the end of the connecting pin (13).
The lock plate (36) is formed with a lock hole (46) that engages and disengages with the engagement groove (14) and a relief hole (47) that allows the connecting pin (13) to enter and exit.
The slide knob (35) is slidably supported by the slide frame (17), and the lock hole (46) engages with the engagement groove (14) of the connecting pin (13). ) Can be switched to a lock release position surrounding the connection pin (13),
A slider (4) is mounted and fixed to a slide frame (17) made of a press fitting having a hat-shaped cross section and a side leg (21) of the slide frame (17), and is guided by a guide groove (7) of the guide frame (3). A pair of sliding bodies (18) to be slidably guided,
The slide knob (35) includes a plate-like base (37) that is inserted into and attached to a space in the frame from one end opening of the slide frame (17), and an L-shape that is continuously provided at one end of the base (37). An operation portion (38) having a shape and a pair of restricting pieces (39) formed on both sides of the base (37).
The slide recess (28) provided in the slide body (18) defines the slide limit of the restricting piece (39), and the slide knob (35) is slidable with respect to the slide frame (17) and is separated. non-attached to the stay for Thea Ru window ventilation. The slide knob (35) is assembled to the open end of the slide frame (17) so as to be slidable in the same direction as the slide direction of the slider (4).
In a ventilated state where the slider (4) is received by the stopper block (10) provided at the end of the guide frame (3), the slide knob (35) is pushed toward the stopper block (10). , stay for windows ventilation according to claim 1 that can unlock the lock mechanism. The slide knob (35 ) is provided with a cam piece (41) for pushing out the connecting pin (13) from the connecting hole (22).
When the slide knob (35) is switched from the lock position to the lock release position and the engagement state between the lock hole (46) and the engagement groove (14) is released, the connecting pin (13) is moved. The stay for window ventilation of Claim 1 or 2 which can push out operation from a connection hole (22) with a cam piece (41), and can assist connection cancellation | release operation of the check arm (6) and a slider (4) . A connecting hole (22) is opened in the outer end wall (20a) of the hat-shaped slide frame (17), and a slip plate (19) having a low sliding resistance is mounted on the inner surface of the outer end wall (20a). And
The base (37) of the slide knob (35) is formed with a pin opening (40) that allows the connecting pin (13) to enter and exit, and the cam piece (41).
An assembly hole (42) for the lock plate (36) is formed in the outer end wall of the operation portion (38) of the slide knob (35).
A lock plate (36) includes a lock wall (44) in which a lock hole (46) and a relief hole (47) are formed, and a spring arm (45) bent continuously in a Z-shape at one end of the lock wall (44). And a metal leaf spring body with
In a state where the lock plate (36) is assembled to the slide knob (35), the lock wall 44 circumscribes the base (37), the spring arm (45) joins the inner surface of the operation portion (38), and the spring arm ( free end stays for windows ventilation according to any one of claims 1 that has engaged 3 in assembly hole (42) is 45).

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