JPH028111B2 - - Google Patents

Description

[Detailed Description of the Invention] (Object of the Invention) The present invention relates to an automatic window opening/closing device.
The purpose is to provide an opening/closing device which enables opening and closing of a window by reciprocating operation of an actuator, and which prevents the window from flapping even when the window is fanned by the wind while the window is being opened.

(Prior Art) Conventionally, a swing-type window opening/closing device has been provided with separate actuators for opening the window and an actuator for closing the window. For example, as shown in Fig. 10, the tail end of an actuator A with a built-in spring is connected to a window frame B, the tip of a rod C is connected to a stile E of a window D, and a wire is connected to the stile E. By winding the wire F, the window D is closed, and by loosening the winding of the wire F, the actuator A's accumulated force closes the rod C.
A device in which the window D is opened by protruding is known.

Since this conventional opening/closing device opens the window D using the actuator A containing a spring, it has the following disadvantages.

(a) In general, an actuator has a rod inside a cylindrical body and is made to protrude by applying the elastic force of a spring to the rod, so the actuation of the rod is smaller than the overall length of the cylindrical body. The stroke was short, which caused the inconvenience of not being able to open the windows wide and the inconvenience of not being able to open large windows and doors. Therefore, ventilation and ventilation are not sufficient.

(b) When the wind blows on the window, the actuator cannot resist the wind force that exceeds the elasticity of the built-in spring, so the window tends to flap.

As described above, conventional switching devices using actuators have various disadvantages, and improvements have been desired.

(Structure of the Invention) The present invention provides an actuator in which a nut is fixed in the cylinder shaft and a rod is screwed to the nut so as to be able to freely rotate in forward and reverse directions, and the tail end of the actuator is supported on a window frame or wall so as to be freely tiltable. However, the tip of the actuator is fixed to the window and the window is opened and closed by rotating the cylindrical shaft or rod.Examples will be described below.

In FIGS. 1 to 9, a window 1 is hinged to the upper edge 2a of a stile 2 and to the upper side 3a of a window frame 3, so that it can freely tilt. 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 include an inclined groove portion 5a.
However, the vertical groove portion 5b may not be provided. 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
2, a normal triangular screw, trapezoidal screw, or ball screw 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 tip 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 metal fitting 4 is inserted into the cut groove 15, and the pin 17 inserted into the pin hole 6 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 N- of the actuator W is located on the side surface of the rear end of the end fitting 14.
A pin light 18 is provided at a position perpendicular to N or at a position rearward of the axis N-N, one end of a pin 19 is inserted into the pin hole 18, and the other end is made to protrude by a predetermined length. The pin 19 may be straight rod-shaped, but
As shown in FIG. 6, 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 that intersects 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 locked 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. This latch 25
As shown in FIGS. 7 and 8, the corner 25
A locking groove 26 cut from a is formed in the vertical piece 25b so that the pin 19 can be fitted into the locking groove 26. The shape of the latching groove 26 is similar to that of the opening 26.
A is formed with a slightly gentle slope, and an inclined groove part 26b is formed in the middle, and the vertical groove part 2 is parallel to the vertical frame 3c.
It is connected to 6c.

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.
-N may not be crossed.

(Function of the invention) In the embodiment of the present invention, the chain 22 is tensioned by the gravity acting on the weight 23, and the operation of opening the window door 1 is performed by the gravity acting on the weight 23, and the chain 22 is tensioned by the gravity acting on the weight 23. The operation of closing 1 is performed by a drive device 24. (It is also possible to perform the closing operation using the weight 23 and the opening operation using the drive device.) To close the opened window 1 as shown in FIG. When the device 24 is actuated, the chain 22 is wound up by the drive device 24 and moves in the direction of the arrow Q;
The chain wheel 10 engaged with the chain 22 is rotated in the direction of arrow S. When the chain wheel 10 rotates in the direction of arrow S, the cylindrical shaft 11 also rotates in the same direction, and the rod 13 gradually fits in and draws the window 1 close. As the window 1 is closed, the actuator W
gradually tilts backward using the support shaft 21 as a fulcrum. The end fitting 14 is close to the latching fitting 25, and the pin 19 protruding from the end fitting 14 is inserted into the latching groove 2 of the latching fitting 25.
6 through the opening 26a (FIG. 7), the rod 13 is further inserted into the pin 19.
moves diagonally downward in the locking groove 26, and the pin 17 moves diagonally downward in the vertical groove portion 5b of the guide groove 5. The vertical groove part 26c of the latching metal fitting 25 and the vertical groove part 5b of the engaging metal fitting 4 are positioned parallel to each other with an interval l (adjustable if the pin 19 is an eccentric pin), and the pin 19 is placed in the latching groove 26. The pin 17 fits into the vertical groove 6c of the guide groove 5, and the pin 17 fits into the vertical groove 5b of the guide groove 5, respectively. (Figure 8)
The vertical grooves 5b and 26c are designed to absorb differences in movement of the many windows and doors, so that all the windows can be completely closed.

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 the arrow Q', the cylinder shaft 11 rotates in the direction of the arrow S', and the rod 13 attempts to gradually protrude from the cylinder shaft 11. Therefore, both the pins 17 and 19 move upward in the vertical grooves 5b and 26c, and the pins 17 and 19 move from the vertical grooves 5b and 26c to the inclined groove 5.
a, 26b, the end fitting 1
4 receives a force from the actuator W so as to be pushed outside (forward). Therefore, the window 1 is gradually pushed open. When the pin 19 completely comes out of the locking groove 26, the pin 17 moves to the upper end of the inclined groove part 5a of the guide groove 5, and as the rod 13 further protrudes, the actuator W gradually tilts forward. Push 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
The window 1 can be opened easily, 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.

Incidentally, in the above embodiment, the rod 13 was provided to perform a linear motion as the cylinder shaft 11 rotated, but the cylinder shaft 11 may also be configured to perform a linear motion as the rod 13 rotates. Of course. In that case, the tip of the cylindrical shaft 11 is fixed to the window 1, and the chain wheel 10 is fixed to the lower end of the rod 13.

Furthermore, although the window 1 is hinged at the upper edge of the stile 2, it may be hinged at the lower or side edge.

(Effects of the Invention) Since the present invention has the above configuration, it has the following advantages.

(a) It is possible to both open and close the window by simply operating the actuator.

(b) Since the rod or cylinder shaft will not retract unless the cylinder shaft or rod rotates, the window will not flap even if the window is opened and is fanned by the wind.

(c) Since there is no need to incorporate a spring into the cylindrical shaft, the retracting stroke of the rod can be made longer than the total length of the actuator. Therefore, the degree of opening of the windows and doors is large, and the room can be sufficiently ventilated and ventilated.

(d) When a window is closed or left open for a long period of time, in the conventional device, the spring built into the actuator remains compressed, and the elastic force of the spring may decrease. If the elastic force of the spring decreases in this way, the rod may malfunction, making it impossible to open the window sufficiently, resulting in insufficient ventilation.

However, in the present invention, since there is no built-in spring, the rod will not malfunction even if the window is closed or opened for a long period of time.

Furthermore, since the actuator is installed vertically and is freely tiltable in the front-rear direction, and the cylinder shaft or rod is rotated in forward and reverse directions by a normal chain that moves laterally at the bottom of the actuator, the space-saving effect is remarkable.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a vertical sectional view of the actuator, Fig. 3 is a partially cutaway front view of the lower part of the actuator, Fig. 4 is a side view of the lower part of the actuator, and Fig. 5 6 is a partially cutaway 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, and FIG. FIG. 10, a side view of another example, is a sectional view of a conventional example. (Explanation of symbols of main parts), 1...window, 2...stile,
8... Bearing body, 11... Cylindrical shaft, 13... Rod, W... Actuator.

Claims (1)

[Claims] 1. A rod is rotatably installed around a cylinder shaft, and the actuator, in which the rotation of either the cylinder shaft or the rod causes the other to make a linear motion, is oriented vertically, and one end of the cylinder shaft or rod that performs rotational movement is placed in a window. The actuator is supported on the horizontal frame at the bottom of the frame or a wall near the frame so as to be tiltable in the front and back direction, and the cylinder shaft or rod is linked with a drive device that drives and rotates it by the horizontal movement of a chain installed horizontally on the lower side. An automatic window opening/closing device characterized by having a rod or cylindrical shaft that is rotatable in forward and reverse directions, and one end of which is fixed to a window door for linear motion.