JP4074462B2 - Window ventilation stay - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention can restrict the opening of a window at a ventilation position with a check arm pivotally supported on the opening frame side, and can release the opening restriction action by the check arm when necessary and can directly open the window from a closed state to a fully open position. It relates to a stay for ventilation.
[0002]
[Prior art]
This type of window ventilation stay is known from Japanese Patent Application Laid-Open No. 2001-98827 according to the applicant's proposal. There, one end of the check arm is connected to the window frame, and a slide pin provided at the other end of the check arm is guided and supported by a guide frame fixed to the opening frame so as to be slidable up and down. The guide frame is formed with a guide groove for sliding the slide pin and an entrance / exit to the guide groove. The doorway can be opened and closed with a shutter provided on the guide frame.
[0003]
[Problems to be solved by the invention]
According to the above ventilating stay, the window that has been restricted to be ventilated by the check arm must be closed once and then the shutter must be switched, so that the window cannot be fully opened. Inadvertent full opening operation can be prevented. Accordingly, it is possible to prevent the fall due to mischief well, and when necessary, it is possible to release the action of restricting the opening by the check arm and to easily open the window by simply switching the shutter via the knob. Further, in a stay provided with a lock that prevents the shutter from sliding open, the window cannot be fully opened unless the lock is unlocked, so that mischief itself can be reliably prevented. The problem is that the number of parts increases to satisfy various functions and the overall cost of the ventilation stay is high.
[0004]
SUMMARY OF THE INVENTION An object of the present invention is to provide a window ventilation stay that can exhibit the same fall prevention function as the conventional one while simplifying the structure, and thus is excellent in safety, at a lower cost. An object of the present invention is to provide a window ventilation stay at a low cost, which has a lock function for holding a window so that it cannot be opened in addition to a fall prevention function.
[0005]
[Means for Solving the Problems]
The window ventilation stay of the present invention is attached to the guide frame 5 fixed to the opening frame 1 side, the engagement frame 6 fixed to the window 2 side, and the guide frame 5 as shown in FIGS. And a check arm 7 for restricting the opening amount of the window 2 to the ventilation opening position via the engagement frame 6 and a sliding movement along the guide frame 5 so that the check arm 7 is engaged with the engagement frame 6. And a switching tool 8 for switching to the disengaged state. The guide frame 5 is provided with a guide groove 10 that slides and guides a slide pin 12 provided at one end of the check arm 7. The engagement frame 6 is provided with an engagement groove 18 that engages with an engagement pin 14 provided at the other end of the check arm 7 and an entrance / exit 20 through which the engagement pin 14 enters and exits the engagement groove 18. ing. The check arm 7 is connected to the switching tool 8 via the slide pin 12 . Further, the check arm 7 is urged to move toward the indoor side by a spring 15 around the slide pin 12. A lock pin 29 that slides along with the check arm 7 is provided on the opening frame 1 side, and a lock frame 31 that engages with the lock pin 29 is provided on the window 2 side. Thus, in a state where the window 2 is fully closed, the switching pin 8 slides the check arm 7 along the guide groove 10 from one end to the other end side, whereby the engagement pin 14 is engaged with the engagement groove 18. A ventilation position where the engagement pin 14 enters and engages, a fully open position where the engagement pin 14 releases the engagement with the engagement groove 18, and a lock where the lock pin 29 engages with the lock frame 31 so that the window cannot be opened. You can switch to the position .
[0007]
The lock frame 31 can be provided integrally with the engagement frame 6 as shown in FIGS. 9 to 13 so that the slide pin 12 can also serve as the lock pin 29 engaged with the lock frame 31.
[0008]
As shown in FIGS. 2 and 4, the lock frame 31 is provided with an engagement groove 32 that engages with the lock pin 29, and the window 2 can be pulled toward the indoor side when the lock pin 29 is switched to the lock position. The engaging groove 32 is formed in the lock frame 31 in a state where it is inclined obliquely.
[0009]
[Effects of the invention]
In a state where the window 2 is closed, the guide frame 5 fixed to the opening frame 1 and the engagement frame 6 fixed to the window 2 face each other vertically or horizontally, and the check arm 7 applies the biasing force of the spring 15. The position is held at the standby position. When the check arm 7 is slid along the guide groove 10 with the switching tool 8 from this state, the ventilation position where the engagement pin 14 engages with the engagement groove 18 of the engagement frame 6 and the engagement pin 14 are engaged. The position can be switched to the fully open position where the engagement is released from the engagement groove 18 of the frame 6 and the engagement is released. When the window 2 is opened while the engagement pin 14 is in the ventilation position, the check arm 7 is pulled out while swinging to the outdoor side against the biasing force of the spring 15 to hold the window 2 in the ventilation opening position. Since it is fixed, the window 2 cannot be opened further. Therefore, it is possible to prevent an accidental fall of the infant due to mischief. Incidentally, even if the switching tool 8 is switched at the ventilation opening position, the opening amount of the window 2 is only slightly increased. When the window 2 is fully opened, the window 2 in the ventilation opening position is closed, and then the switching tool 8 is slid and the check arm 7 is slid. It is located outside the engaging groove 18. In this state, even if the window 2 is opened, the check arm 7 is urged by the spring 15 and maintains the standby state, so that the window 2 can be fully opened. Since the window 2 can be fully opened or ventilated by simply sliding the switching tool 8 and slidingly moving the check arm 7, it is possible to reduce time and labor when changing the opening amount of the window 2.
[0010]
As described above, in the window ventilation stay of the present invention, the stay is constituted by the guide frame 5 on the opening frame 1 side, the check arm 7 and the switching tool 8, and the engagement frame 6 on the window 2 side, and the check in the standby state. By switching the position of the arm 7 with the switching tool 8, the window 2 can be switched between the open ventilation state and the fully open state, so that the stay structure is simplified and the conventional ventilation stay is simplified. The fall-preventing function similar to the above can be exhibited, and thus a highly safe window ventilation stay can be provided at a lower cost.
[0011]
According to the window ventilation stay in which the lock pin 29 that moves along with the check arm 7 is provided in the opening frame 1 and the lock frame 31 that engages the lock pin 29 is provided in the window 2, the switching tool 8 is moved from the ventilation position to the fully open position. The lock pin 29 can be engaged with the lock frame 31 and the window 2 can be locked and fixed so that it cannot be opened. Therefore, the locking function provided by the window ventilation stay in addition to the locking device provided on the window 2 has the advantage of preventing multiple mischiefs and improving safety. It is advantageous in that the window 2 can be prevented from being illegally opened and the crime prevention effect can be enhanced.
[0012]
According to the stay for window ventilation in which the lock frame 31 is provided integrally with the engagement frame 6 and the slide pin 12 serves as the lock pin 29 that engages with the lock frame 31, the number of components of the entire apparatus is reduced. Thus, the manufacturing cost of the window ventilation stay can be reduced by that amount, and a window ventilation stay that is less prone to failure can be obtained.
[0013]
According to the window ventilation stay, the engagement groove 32 provided in the lock frame 31 is formed in an obliquely inclined state so that the window 2 can be pulled toward the indoor side when the lock pin 29 is switched to the lock position. For example, the window 2 in the fully closed and locked state can be tightly fixed to the opening frame 1 through the packing, and the window 2 can be prevented from being loosened due to strong wind or external vibration. The air density in the closed state can be improved and intrusion of external air can be prevented.
[0014]
【Example】
First Embodiment FIGS. 1 to 8 show a first embodiment of a ventilation stay according to the present invention. In FIG. 1, reference numeral 1 is an opening frame, and 2 is a window. The opening frame 1 and the window 2 are each formed by assembling aluminum strips into a square frame shape. One end of the window 2 is supported by a hinge 3 fixed to the opening frame 1 and can swing and open around a vertical axis. When the window 2 is closed, the window 2 can be fixed in the closed position by a lock or latch not shown. In order to restrict the opening of the window 2 at the ventilation position, the ventilation stay of the present invention is disposed between the opening frame 1 and the lower surface of the lower frame of the window 2.
[0015]
The ventilation stay includes a guide frame 5 fixed to the upper surface of the lower frame of the opening frame 1, an engagement frame 6 fixed to the lower surface of the lower frame of the window 2, and a guide frame 5 attached to the engagement frame 6. A check arm 7 that is engaged or disengaged, a switching tool 8 that switches the check arm 7 so as to be slidable along the guide frame 5, a lock mechanism that locks and holds the window 2 so that it cannot be opened, and the like. .
[0016]
2 and 3, the guide frame 5 is formed of a press fitting having a U-shaped cross section that is open in the left-right direction with the lower surface opened, and has a left and right laterally extending guide groove 10 and a relief groove 11 leading to the upper guide wall, A guide groove 10 guides a slide pin 12 fixed to one end of the check arm 7 so as to be slidable in the left-right direction. The guide frame 5 has an operation groove 13 for sliding the switching tool 8 on the front wall of the frame facing the guide groove 10 (see FIG. 3).
[0017]
The check arm 7 is made of a strip-shaped stainless steel plate having both ends rounded, and a slide pin 12 is provided on the upper surface of one (right end), and an engagement pin 14 is provided on the upper surface of the other end (left end). The slide pin 12 is fitted and engaged with the guide groove 10 of the guide frame 5 from above, and the lower end of the slide pin 12 is caulked and fixed to the switching tool 8 inside the guide frame 5. Therefore, when the switching tool 8 is slid in the left-right direction along the operation groove 13, the entire restraining arm 7 moves along with the switching tool 8 and can be displaced left and right. The check arm 7 is oscillated and biased counterclockwise in FIG. 4 around the slide pin 12 by a kick spring (spring) 15 and maintained in a standby posture. The kick spring 15 is disposed between the check arm 7 and the guide frame 5 so as to be fitted on the slide pin 12, and one end of the kick spring 15 is fixed to the switching tool 8 and the other end is fixed to the pin 16 fixed to the check arm 7. It is hung. In order to avoid contact buffering with the pin 16, a relief groove 11 is provided continuously at the end of the guide groove 10. When the check arm 7 is in the standby posture, the pin 16 is received by the side wall of the escape groove 11, so that the standby posture of the check arm 7 can be always constant.
[0018]
The engagement frame 6 on the side of the window 2 is made of a press fitting having a C-shaped cross section, and an engagement groove 18 for capturing and engaging the engagement pin 14 is formed between the bent free end walls facing the inside and outside on the lower surface side of the frame. It is provided. In FIG. 6, the right end portion of the engaging groove 18 is closed by fitting and welding the end fitting 19 inside the (right) side end of the engaging groove 18. The other (left) side end of the engagement groove 18 on the hinge 3 side is released to be an entrance / exit 20 through which the engagement pin 14 enters and exits. Out of the bent free end walls facing the inside and outside at the entrance / exit 20, the outdoor free end wall projects from the indoor free end wall to the suspension side to form a regulating wall 21.
[0019]
The switching tool 8 is inserted and loaded into the guide frame 5 via the operation groove 13 and is made of a leaf spring material that is caulked and fixed to the standing wall of the switching base 23. The switching arm 24 includes an operation knob 25 fixed to the upper end of the switching arm 24. The switching base 23 is provided with a relief groove 26 corresponding to the relief groove 11 provided in the guide frame 5. In FIG. 3, the switching arm 24 protrudes to the indoor side through a contact surface between the packing 27 fixed to the opening frame 1 and the lower frame of the window 2, so that the operation knob can be maintained with the window 2 closed. 25 can be slid.
[0020]
By sliding the switching tool 8 and switching the check arm 7 to the ventilation, fully open, and locked positions, the window 2 can be restricted from opening at the ventilation position, and then fully opened. Can be held in a locked state. Specifically, when the window 2 is closed as shown in FIG. 4, when the switching tool 8 is slid to switch the slide pin 12 to the ventilation position where the slide pin 12 comes to the right end of the guide groove 10, the other end of the check arm 7. The engaging pin 14 provided on the front side enters and engages with the engaging groove 13 of the engaging frame 6 through the entrance 20. If the window 2 is opened in this state, the engaging pin 14 will accompany the window 2 and attempt to displace to the outdoor side as shown in FIG. Swing. Eventually, the engagement pin 14 comes into contact with the end fitting 19 of the engagement groove 18 as shown in FIG. 6 and restricts the opening of the window 2 beyond that. Ventilate in this state. In the ventilation state, the pin 16 is located at the inner back end of the escape groove 11 to prevent the switching tool 8 from being slid from the ventilation position toward the fully open position. Therefore, it is possible to prevent the switching tool 8 from being switched from the outdoor side when ventilation is opened, and to improve crime prevention.
[0021]
When the window 2 is fully opened, the window 2 that has been ventilated is closed once, the check arm 7 is returned to the standby position, and the switching tool 8 is slid leftward toward the fully opened position shown in FIG. . Thus, in the state in which the switching tool 8 is switched to the fully open position, as shown in FIG. 7, the engagement pin 14 moves to the left by the amount of sliding of the switching tool 8 and comes out of the engagement groove 18, thereby restricting the restriction. Facing the wall 21. Therefore, even if the window 2 is opened, the engagement pin 14 cannot move with the engagement frame 6 and the check arm 7 continues to maintain the standby posture.
[0022]
When the window 2 is closed again and the switching tool 8 is further slid to the left as shown in FIG. 8, the lock mechanism is switched to the locked state, and the window 2 can be fixed so as not to be opened. That is, the lock mechanism is provided on the opening frame 1 side, one end of which is fixed to the switching base 23, the interlocking plate 28, the lock pin 29 fixed to the interlocking plate 28, and the opening frame 1 is fixedly interlocked. It comprises a pin guide 30 that guides the plate 28 and the lock pin 29 only in a slidable manner in the left-right direction, and a lock frame 31 that is provided on the window 2 side and engages with the lock pin 29. In FIG. 2, the lock frame 31 is configured by a C-shaped cross section similar to the engagement frame 6, and the lock pin 29 is captured and engaged between the bent free end walls facing the inside and outside on the lower surface side of the frame. An engaging groove 32 is provided. In order to draw the window 2 to the indoor side by utilizing the lock slide operation of the lock pin 29, the previous engagement groove 32 is inclined obliquely as shown in FIG. 2 and 3, reference numeral 33 denotes a slide base for the interlocking plate 28 and is fixed to the opening frame 1.
[0023]
Second Embodiment FIGS. 9 to 13 show a second embodiment of the present invention relating to a window ventilation stay. There, the locking mechanism is provided between the guide frame 5 and the engagement frame 6. Specifically, the slide pin 12 was used as the lock pin 29, and the lock frame 31 was integrally connected to one side of the engagement frame 6 as shown in FIG. The interlocking plate 28 and the pin guide 30 in the first embodiment are omitted. In this second embodiment, as shown in FIG. 11, when the switching tool 8 is switched and the positions of the check arm 7 and the engagement pin 14 are switched to the ventilation, full open, and lock positions, the slide pin 12 is It uses the same amount of movement in the same direction. In the state in which the switching tool 8 is switched to the ventilation position, the engagement pin 14 is engaged with the engagement groove 18 as shown in FIG. 12, so that the window 2 is placed in the ventilation release position as in the first embodiment. Opening can be regulated. The relationship between the engagement pin 14 and the engagement groove 18 in the fully open position is the same as in the first embodiment. In the state where the switching tool 8 is switched to the locked position, as shown in FIG. 13, the slide pin 12, that is, the lock pin 29 is engaged with the engagement groove 32 of the lock frame 31 at the locked position, and the window 2 cannot be opened. To fix. At that time, in order to pull the window 2 toward the indoor side, the engagement groove 32 is inclined obliquely. Since others are the same as those of the first embodiment, the same members are denoted by the same reference numerals and description thereof is omitted. The same applies to the following embodiments.
[0024]
(Third Embodiment) FIGS. 14 and 15 show a third embodiment of the present invention in which the structure of the switching tool 8 is changed. The switching tool 8 in the third embodiment includes a switching base 23 that is caulked and fixed to the slide pin 12 and a switching lever 35 that moves the switching base 23 in the left-right direction. The switching lever 35 is formed by integrating the switching arm 24 with which the operation knob 25 is integrally provided and a fan-shaped gear 36. The switching lever 35 is pivotally supported by a bracket 37 provided on the guide frame 5 so as to be able to swing left and right via a horizontal shaft 38, and a gear tooth 39 provided on the lower peripheral edge thereof is a straight line provided on the switching base 23. The rack teeth 40 are engaged with each other. Therefore, when the switching lever 35 is swung in the left-right direction, the check arm 7 can be switched to the ventilation, fully open, and locked positions.
[0025]
(4th Example) FIG. 16: shows 4th Example of this invention which changed the structure of the switching tool 8 further. The switching tool 8 in the fourth embodiment has a handle case 42 fixed to the opening frame 1 so that the switching lever 44 and the switching handle 45 can swing in and out of a vertical shaft 43 pivotally supported by the boss. Fixed. A switching piece 46 that can be slid left and right is provided inside the handle case 42, and an operation pin 48 of the switching lever 44 is engaged with an engagement groove 47 provided on the plate surface. The switching piece 46 is engaged with an interlocking pin 49 fixed to the interlocking plate 28. Therefore, when the switching handle 45 is swung around the shaft 43, the check arm 7 is switched to the ventilation, full open, and lock positions. it can. Reference numeral 50 denotes a click spring which positions and holds the operation pin 48 of the switching lever 44 in a state in which the check arm 7 is switched to the ventilation, full open, and lock positions.
[0026]
In addition to the above embodiments, the window ventilation stay of the present invention can be used by being disposed between the side frame of the window 2 and the vertical frame of the opening frame 1. In that case, even if the left and right widths of the window 2 are different, the ventilation opening amount of the window 2 can be integrated with the opening amount defined by the check arm 7. Incidentally, in the use form described in the embodiment, the mounting position of the guide frame 5 is changed according to the difference in the left and right widths of the window 2, and the opening amount at the swinging tip of the window 2 increases beyond a certain value. Need to avoid. The present invention can also be applied when the window 2 is a slide-out type or a rotary window type.
[Brief description of the drawings]
FIG. 1 is a schematic plan view. FIG. 2 is an exploded perspective view of main components. FIG. 3 is a vertical side view in a state where a window is closed. FIG. 4 explains the positional relationship of each pin when a switching tool is switched. [Figure 5] Longitudinal sectional view [Figure 6] Partially broken plan view when ventilating is open [Figure 7] Partially broken plan view when fully open [Figure 8] Partially broken plan view when locked [Figure] 9 is a schematic plan view of the second embodiment. FIG. 10 is an exploded perspective view of main components of the second embodiment. FIG. 11 is a longitudinal sectional view of the second embodiment. FIG. 13 is a partially broken plan view of the second embodiment when locked. FIG. 14 is a vertical sectional side view of the third embodiment. FIG. 15 is a sectional view taken along line AA in FIG. 16] Cross-sectional plan view of the fourth embodiment [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Opening frame 2 Window 5 Guide frame 6 Engagement frame 7 Checking arm 8 Switching tool 10 Guide groove 12 Sland pin 14 Engagement pin 15 Spring 18 Engagement groove 20 Entrance / exit 29 Lock pin 31 Lock frame 32 Engagement groove

Claims (3)

A guide frame (5) fixed to the opening frame (1) side, an engagement frame (6) fixed to the window (2) side, and an engagement frame (6) mounted on the guide frame (5). And a check arm (7) for restricting the opening amount of the window (2) to the ventilation opening position, and slidingly moving along the guide frame (5) to move the check arm (7) with respect to the engagement frame (6). A switching tool (8) for switching between an engaged state and a disengaged state;
The guide frame (5) is provided with a guide groove (10) for slidingly guiding a slide pin (12) provided at one end of the check arm (7).
The engaging frame (6), and engagement groove which engages with the engaging pin provided on the other end of the restraining arm (7) (14) (18), the engaging pin (14) engaging groove (18 ) And an entrance / exit (20) to / from
The check arm (7) is connected to the switching tool (8) via the slide pin (12) ,
The check arm (7) is urged to move toward the indoor side by a spring (15) around the slide pin (12) ,
A lock pin (29) that slides along with the check arm (7) is provided on the opening frame (1) side, and a lock frame (31) that engages with the lock pin (29) is provided on the window (2) side. And
In a state where the window (2) is fully closed, the switching pin (8) slides the check arm (7) along the guide groove (10) from one end to the other end , 14) the ventilation position where the engagement groove (18) enters and engages, the engagement pin (14) is the fully open position where the engagement with the engagement groove (18) is released, and the lock pin (29) is the lock frame. (31) and engages with the window ventilation stay, wherein the benzalkonium be operated switching between a locked position for opening fixed non hold window. The window ventilation according to claim 1, wherein the lock frame (31) is provided integrally with the engagement frame (6), and the slide pin (12) also serves as a lock pin (29) engaged with the lock frame (31) . Stay. An engagement groove (32) that engages with the lock pin (29) is provided in the lock frame (31) ,
In the state where the lock pin (29) is switched to the locked position, the engagement groove (32) is formed in the lock frame (31) so as to be inclined obliquely so that the window (2) can be pulled toward the indoor side. Item 3. A window ventilation stay according to item 1 or 2 .

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