JPH028073Y2 - - Google Patents

Description

[Detailed description of the invention] (Purpose of the invention) The present invention relates to a locking device for windows that are automatically opened and closed. To provide a locking device that is easy to operate and automatically unlocks when a door is opened.

(Prior Art) A device shown in FIG. 10 is conventionally known as a device for opening and closing a swing type window. This device is
The tail end of actuator A with a built-in spring is connected to window frame B, the tip of rod C is connected to stile E of window D, and wire F is connected to stile E. By winding up the wire, the window D is closed, and by loosening the winding of the wire F, the rod C is protruded by the accumulated force of the actuator A, and the window D is closed.
It was designed to open up the .

In this device, only the wire F prevents the window D from opening, and when the tension on the wire F is relaxed, the window D will be pushed open by the accumulated force of the actuator A. Therefore, it becomes possible to pry open window D from outside, which is extremely unsafe from a crime prevention standpoint.

In addition, when opening and closing a large number of windows D in conjunction with each other, it is extremely difficult to wind up the wires F of all the windows D evenly and completely close them, and there are variations in each window D. There was a drawback that caused this.

(Structure of the invention) The basic structure of the invention is to attach an end fitting to the upper end of the actuator, and insert a pin inserted into the front end of the end fitting into a guide groove of a locking fitting fixed to the window. , a protruding pin on the side surface of the rear end of the end fitting is provided so that it can be freely fitted into and removed from the latching groove of the latching fitting fixed to the window frame. The provided pin is fitted into the locking groove to prevent the window from opening, and an embodiment thereof will be described below.

In FIGS. 1 to 8, a window 1 is hinged to an upper horizontal frame 3a of a window frame 3 at an upper edge 2a of a stile 2, and is tiltable. A locking fitting 4 having an L-shaped cross section is attached to the left and right vertical edges 2b of the stile 2 of the window 1. A guide groove 5 bent in a substantially dogleg shape is formed in the vertical piece 4a of the locking fitting 4. The upper half of the entire length of the guide groove 5 is inclined toward the indoor side at a predetermined angle to form an inclined groove portion 5a, and the lower half thereof is a vertical groove portion 5b parallel to the longitudinal edge 2b. . The guide groove 5 is not limited to being bent into a substantially doglegged shape, but may be one having only the inclined groove portion 5a and not having the vertical groove portion 5b. A bracket 6 having a U-shaped cross section is attached to the lower horizontal frame 3b of the window frame 3 or to the wall. The bracket 6 has a screw hole 7 formed in the opposing arm 6a.

The actuator W that opens and closes the window 1 has a shaft 9 inserted through the axis of a box-shaped bearing body 8 which has openings on both left and right sides and the front, and supports the shaft 9 so as to be rotatable in forward and reverse directions. A chain wheel 10 is fixed in the bearing body 8 in the middle. The cylindrical shaft 11 is fitted onto the upper end of the shaft 9, and the shaft 9
and the cylinder shaft 11 are fixed so that they can rotate together. A nut 12 is installed inside the upper end of the cylinder shaft 11 and fixed to the cylinder shaft 11, so that the cylinder shaft 11 and the nut 12 can rotate together. A rod 13 is screwed into the nut 12. This rod 13 is nut 1
A normal triangular screw, trapezoidal screw, ball screw, etc. corresponding to 2 is used, but a multi-thread screw with a large lead is preferable. An end fitting 14 for locking the rod 13 and the locking fitting 4 is fixed to the upper end of the rod 13. This end fitting 14 has a cut groove 15 cut in its front end, and a pin hole 16 perpendicular to the cut groove 15.
The vertical piece 4a of the locking fitting 4 is inserted into the cut groove 15, and the pin 17 inserted into the pin hole 16 is interposed in the guide groove 5. The pin 17 is located at a distance l from the axis N--N of the actuator W. The axis center of the rod 13 is N-N on the side surface of the rear end of the end fitting 14.
A pin hole 18 is provided at a position orthogonal to the axis N-N or at a position rearward from the axis N-N, and the pin 1 is inserted into the pin hole 18.
9 is inserted and the other end is made to protrude by a predetermined length.
The pin 19 may be straight rod-shaped, but the sixth
As shown in the figure, it is better to make the protruding part 19a protruding from the end fitting 14 eccentric with respect to the fitting part 19b. An insertion hole 20 intersecting the axis N-N of the actuator W is bored in the side surface of the bearing body 8, and the bearing body 8 is interposed between the arms 6a of the bracket 6 and screwed into the screw hole 7. The tip of the supported shaft 21 is inserted into the insertion hole 20, and the actuator W is supported so as to be tiltable in the front-back direction. In order to interlock the left and right actuators W, the chain 22 inserted into the bearing body 8 through the opening 8a of the bearing body 8 is engaged with the chain wheel 10. One end of the chain 22 is connected to a weight 23, and the other end is connected to a drive device 24 equipped with a brake.

On the other hand, a hanging metal fitting 25 having an L-shaped cross section is attached to the vertical frame 3C of the window frame 3. As shown in FIGS. 7 and 8, this latching fitting 25 has a latching groove 26 cut from a corner 25a formed in a vertical piece 25b, and the pin 19 can be fitted into the latching groove 26. do it like this. The shape of the latching groove 26 is the same as that of the opening 26a.
is formed with a slightly gentle slope, and an inclined groove portion 26b is formed in the middle to form a vertical groove portion 26 parallel to the vertical frame 3c.
It is connected to c.

In the above embodiment, the insertion hole 20 of the bearing body 8 was provided on the axis N-N of the actuator W, but as shown in FIG. By providing the insertion hole 20 at a shifted position, the fulcrum of tilting of the actuator W is aligned with the axis N-
It may be arranged so that it does not intersect with N.

(Operation of the invention) In the embodiment of the invention, the chain 22 is tensioned by gravity acting on the weight 23.

In order to close the window 1 shown in FIG. 1, the brake of the drive device 24 is released and the drive device 24 is activated. Chain 22 by drive device 24
moves in the direction of arrow Q, and the chain wheel 10 meshing with the chain 22 rotates in the direction of arrow S. chain wheel 10
When the rod rotates in the direction of arrow S, the cylindrical shaft 11 also rotates in the same direction, and the rod 13 gradually fits into the cylindrical shaft 11 and draws the window 1 close. As the window 1 is closed, it gradually tilts backward using the actuator W support shaft 21 as a fulcrum. The end fitting 14 approaches the latching fitting 25, and the pin 19 enters the latching groove 26 from the opening 26a. (Fig. 7) As the rod 13 is further inserted, the pin 19 is moved into the inclined groove part 26.
b is moved diagonally downward, while the pin 17 is moved diagonally downward in the inclined groove portion 5a. As the rod 13 is inserted, the vertical groove 26c of the latch 25 and the longitudinal groove 5b of the latch 4 come to be parallel to each other with an interval l (the window 1 is completely closed).
The pin 19 goes to the vertical groove part 26c, and the pin 17 goes to the vertical groove part 5.
b. (Fig. 8) Vertical groove portions 5b, 26
c is designed to absorb the difference in movement of the many windows 1 provided, and all the windows 1 can be completely closed.

When the pin 19 is inserted into the locking groove 26 and the actuator W is stopped, even if you push open the window 1 from inside the room or try to pry it open from outside, the pin 19 will not escape from the locking groove 26, so the window will not open. Door 1 can now be opened.

The distance l can be adjusted by rotating the eccentric pin 19.

In order to open the closed window 1, the drive device 2
The brake 4 may be released to allow the weight 23 to descend. As the weight 23 descends,
The chain 22 moves in the direction of arrow Q', and the cylinder shaft 11
rotates in the direction of arrow S', and the rod 13 begins to gradually protrude from the cylinder shaft 11. The pins 17 and 19 both move upward in the vertical grooves 5b and 26c, and the pin 1
7 and 19 are from the vertical groove portions 5b and 26c to the inclined groove portion 5
When the end fittings 14 are fitted into the ends a and 26b, respectively, the end fittings 14 receive a force from the actuator W so as to be pushed out of the room (forward). Therefore, the window 1 is gradually pushed open. When the pin 19 is completely removed from the locking groove 26, the pin 17 is moved into the guide groove 5.
When the actuator W moves to the upper end of the inclined groove portion 5a and the rod 13 further protrudes, the actuator W gradually tilts forward and pushes the window 1 open.

As shown in FIG. 9, if the support point of the bearing body 8 is located at a position shifted backward by L from the axis N-N of the actuator W, when opening the window 1,
A moment M acts on the rod 13 in a direction that causes the actuator W to tilt forward. When this moment M acts, the window 1 is pushed outside (forward) by the rod 13, so the window 1 becomes easier to open, and the force required to push the window 1 open may be small. That is, the weight of the weight 23 may be small.

On the other hand, when closing the opened window 1, the moment M' acts in the direction in which the actuator W tilts backward, making it easier to close the window 1.

Although the above embodiment employs the actuator W in which the rod 13 is retracted by the rotation of the cylinder shaft 11, it goes without saying that a pneumatic cylinder or a hydraulic cylinder may be used in the same manner.

(Effect of the invention) The present invention attaches an end fitting to the upper end of the actuator, and inserts a pin inserted into the front end of the end fitting into a guide groove of a locking fitting fixed to a window.
Since the pin protruding from the rear end of the end fitting is provided in a manner that it can be freely fitted into and removed from the latching groove of the latching fitting fixed to the window frame, it has the following advantages.

(b) Since the door is automatically unlocked and locked when the actuator is activated, it does not require complicated operations and is easy to operate.

(b) When the window is closed, the actuator cannot be pushed open from inside the room or pried open from outside, so the crime prevention effect is high and the window will not flap even if it is fanned by strong winds.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view of a window opening/closing device employing an embodiment of the present invention, Fig. 2 is a vertical cross-sectional view of the actuator, Fig. 3 is a partially cutaway front view of the lower part of the actuator, and Fig. 4 is A side view of the lower part of the actuator, FIG. 5 is a partially broken side view of the upper part of the actuator,
Fig. 6 is a perspective view of the pin, Figs. 7 and 8 are perspective views of the locking fitting, end fitting and latching fitting, Fig. 9 is a side view of another example of the lower part of the actuator, and Fig. 10 is the conventional FIG. 3 is an example cross-sectional view. Explanation of symbols of main parts, 1... Window door, 3... Window frame, 4... Locking metal fitting, 5... Guide groove, 13... Rod, 14... End fitting, 17, 19... Pin ,
25...Latching metal fitting, 26...Latching groove.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) An actuator having a retractable rod is oriented vertically and one end of the actuator is tiltably connected to a window frame or wall, and the other end is connected to a window door. In a window that automatically opens and closes a window, a locking fitting 4 in which a guide groove 5 inclined with respect to the vertical direction is formed protrudes from the window 1, and is inclined in a direction intersecting the guide groove 5 and has an opening. The latching fitting 25 in which the latching groove 26 having the portion 26a is formed is attached to the latching fitting 4.
An end fitting 14 is fixed to the upper end of the rod 13, and a pin 17 inserted horizontally into the front end of the end fitting 14 is attached to the locking fitting 4.
A pin 19, which is interposed in the guide groove 5 of
A locking device for an automatically opened/closed window that is removably inserted into the window. (2) Vertical longitudinal grooves 5b are provided below the guide groove 5 of the locking metal fitting 4, and the locking groove 26 of the locking metal fitting 25 is connected to the vertical groove portion 5b.
A locking device for an automatically opened/closed window as set forth in claim 1 of the Utility Model Registration Claim, in which a vertical groove portion 26c is continuously provided below. (3) Utility model registration claim No. 1 in which the protruding part 19a of the pin 19 protruding from the side surface of the rear end of the end fitting 14 is eccentric with respect to the fitting part 19b, and the pin 19 is rotatably provided. A locking device for an automatically opened/closed window according to item 1 or 2.