JPS6187086A - Window opening and closing driving apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a window opening/closing drive device. More specifically, the present invention relates to a drive device for remotely opening and closing windows of buildings, etc., and particularly relates to a window opening/closing drive device that can be opened instantly in an emergency.

[Prior Art] Some conventional window opening/closing devices are equipped with a mechanism to instantly open a window in an emergency, but all of them are operated remotely using steel cables.

[Problem to be solved by the invention] In the conventional remote control device using steel cables as described above, there are restrictions on the size and weight of the window, and in small-scale buildings, the windows are relatively small. The equipment is sufficient to achieve the purpose. However, it cannot be applied to relatively large windows that are heavy, and it is desirable that such large windows have a mechanism that can be opened quickly in an emergency, just like small windows.

SUMMARY OF THE INVENTION An object of the present invention is to provide a window opening/closing drive device that can instantly open a window in an emergency and can easily restore normal operation.

[Means for Solving the Problems] The window opening/closing drive device of the present invention includes: a window frame; a window body provided in a state in which it can be freely opened and closed with respect to the window frame and is biased in the opening direction; It consists of a worm that is rotatably provided on the window frame around its axis, and a worm wheel that meshes with the worm and is rotatably connected to the window body via a clutch member, The window body is configured to be opened and closed by rotating the window body.

In this specification, the term "clutch member" is a concept that includes all means that can selectively control the worm wheel to rotate freely or not to rotate with respect to the window body. In addition to mechanical-electrical means as shown in Figure 1, it also includes means using the gas pressure of a compressed gas cylinder as a driving source. Further, the present invention is not limited to the spatial arrangement of the clutch member, the worm wheel, and the window body.

[Function] In the window opening/closing drive device of the present invention, the clutch member is operated so that the worm wheel does not rotate relative to the window body under normal conditions. Thereby, by rotating the worm, the worm wheel is moved along the worm,
The window body can be opened and closed against the urging force constantly applied to the window body.

In an emergency, the clutch member is operated so that the worm wheel is rotatable relative to the window body. As a result, the worm wheel moves along the worm while meshing with each other, and the window body is opened instantly in response to the force.

[Example] Next, the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic front view showing an embodiment of the device of the present invention, FIGS. 2 and 3 are partially cutaway front views showing an embodiment of the worm wheel of the present invention, and FIG. 4 is a schematic front view showing an embodiment of the worm wheel of the present invention. FIGS. 5 and 6 are enlarged views of main parts showing one embodiment of the worm, and schematic perspective views showing other embodiments of the device of the present invention, respectively.

In Fig. 1, (1) is a window frame extending in the vertical direction,
A window body (2) is fitted inside the window frame (1) so as to be slidable in the vertical direction. Therefore, a biasing force based on gravity is always acting downward on the window body (a).

Worms (3) and (4) are provided on both sides of the window frame (1) so as to be rotatable around their respective axes. The two worms (3) and (4) extend parallel to each other in the vertical direction. Bevel gears (5) and (6) are attached to the upper ends of the worms (3) and (4), respectively.

Bevel gears (5) and (6) each have a horizontally extending shaft (
Other bevel gears (8), (9) attached to both ends of the sword
), and the shaft (7) is, for example, a motor (10).
Driven by etc.

The worms (3), (
Worm wheels (11) and (12) that mesh with the worm wheels 4) are rotatably connected by brackets (13) and (14). Worm wheel (11), (12)
The latch members (16) and (17) enable rotation relative to the window body (2) and brackets (13) and (14) as shown in FIG. 2 or 3, respectively. It is controlled in such a way that it becomes impossible to do so.

In the window opening/closing drive device constructed as described above, in a normal state, the clutch member is operated to prevent rotation of the worm wheels (11) and (12). Therefore, for example, when the shaft (7) is rotated in the direction of arrow (A) by the motor (10), the worms (3) and (4) are rotated in the direction of arrow (A).
C) direction, each worm (3), (4)
The worm wheels (11) and (12) in mesh with the worm wheels (11) and (12) rise. Thereby, the window body (2) can be raised in a parallel state. Moreover, when the shaft (7) is rotated in the direction of arrow (B), the window body (2) is lowered. In addition, the window frame (
The window (15) consists of the window body (2) and the window body (2).
may be configured to open when is rising;
It may also be configured to close.

Next, in case of an emergency such as a fire, the clutch member is switched so that the worm wheels (11) and (12) can freely rotate relative to the brackets (13) and (14). At that time, even if the worms (3) and (4) are not rotating, the worm wheels (11) and (12
) moves over the worms (3) and (4), so the window body (
2) falls instantly. Therefore, when configuring the window (15) to close when the window body (2) is raised,
The window (15) is instantly opened, allowing smoke, for example, to escape outside.

Furthermore, in the device of the present invention, a worm wheel (1
1) and (12) move and fall while engaging with the worms (3) and (4), so even if the window is once opened, it can be immediately returned to normal use by re-engaging the clutch member. It has the excellent advantage of being able to

Note that even while the worm is rotating, the window body (2
) falls smoothly.

As the clutch member in the present invention, mechanical means as shown in FIG. 2 or 3, for example, can be adopted. The clutch member (16) in FIG. 2 is a kind of dog clutch, which rotatably holds the worm wheel (11) and includes a center member (18) fixed to the bracket (13), and a center member (18) fixed to the bracket (13). A claw member (19) is housed inside the claw member (18) so as to be movable in the radial direction, and a worm wheel (
11), and a control cable (Bowden cable) (211) for operating the claw member (19) in the radial direction.As the control cable (21) A push/pull control cable or a pull control cable may be used; in the latter case, it is preferable to bias the claw member (19) radially outward by an elastic means such as a spring (22). This makes it easier to return to the normal state.Instead of the control cable (21), any conventionally known remote control means such as a solenoid actuator can be used.In addition to the one shown in FIG. ) in which the claw supported by the bracket (13) engages with a part of the worm wheel, such as a tooth, which is rotatably supported directly on the bracket (13) (not shown), or as shown in FIG. Various dog clutches are available, such as one in which a pawl member (23) provided movably in the axial direction of the worm wheel (11) engages with a pawl portion (24) formed on the side surface of the worm wheel (11). It can be used as a clutch member.

Further, the claw member (23) and the claw portion (24) in Fig. 3.
Instead, a friction clutch employing a friction plate (not shown) may be used as the clutch member. In this case, there is an advantage that an appropriate braking force can be applied even when the clutch is disengaged, and the falling speed of the window body (2) can be adjusted. An electromagnetic clutch may also be used.

When an electric means such as a solenoid actuator is used as a method of driving the various clutch members, it is easy to perform a large number of detections at the same time. This has the advantage that even in the event of a power outage, a large operating force can be easily obtained.

In the device of the present invention, the number of worms and the number of worm wheels are not particularly limited. For example, if the window body ('2J) is well-balanced, the effect of the present invention can be achieved even with only one worm (3) and one worm wheel (11). More worms may be combined with two, four or more worm eels mating with them.

In the device of the present invention, two worms (3), (4) arranged parallel to each other and two worm wheels (
11) and (12), as shown in Fig. 4, the respective worms (3) and (4) are biased in the biasing direction of the window body (2) (downward in the embodiment shown in Fig. 4). ) It is preferable to provide a portion (27) without l1l (26) near the end on the opposite side. As a result, when the window body (2) moves near the end (upward in FIG. 4), both worm wheels (11), (12) move the worms (3), (4
), and the right and left sides of the window body (21) can be balanced at that position. Therefore, for example, if one clutch member becomes disengaged, or if only one worm is disengaged for some reason, Even when the left and right balance of the window body (2) shifts due to rotation, the balance can be easily restored.

Although the above embodiments are all sliding windows extending in the vertical direction, the device of the present invention is not limited thereto. For example, as shown in FIG. 5, the device of the present invention can also be applied to a window body (28) rotatably supported by a window frame (29) at its lower end. Fifth
In the device shown in the figure, the worms (3) and [4] are the same as in the case of FIG. 1, but the worm wheel (30),
(31) is a lever (32L) whose one end is supported on the side (28a) of the window body (28) and is provided at the other end of (33) via a clutch member. That is, the connection referred to in the claims. In addition to the connection via the brackets (13) and (14) fixed to the window body (2) as in the case of Figure 1, the connection to the window body (28) as shown in Figure 5. This concept also includes connections using levers (32), (33), etc. that are rotatable.

By interposing such levers (32), (33) and by appropriately selecting the biasing means as described below, the device of the present invention can be applied to, for example, double-hung windows. .

In the embodiment of the present invention shown in FIG. 5, the latch members (16), (1
7), the worm wheels (30), (31) are fixed to the levers (32), (33). In that case, as the worms (3), (4) rotate, the worm wheels (30), (31) rise or fall, but the levers (32), (33) also connect to the window body (28) ( Since the worm wheels (30) and (31) rotate around the worm wheels (35) and (36), the gear teeth of the worm wheels (30) and (31) sequentially rotate around the worm wheels (35) and (36).
) and (4).

In an emergency, the clutch member is disengaged and the window body (28) falls in the direction of arrow (E). In the embodiment shown in FIG. 5, when the window body (28) is completely closed in the direction of the arrow (F), almost no urging force is generated in the direction of the arrow (D) due to gravity. Therefore, at least the window body (28) is closed. In this state, it is preferable to apply a biasing force in the direction of arrow (E) using, for example, an elastic member.

The device of the present invention employs an elastic member such as a spring or other biasing means such as an air cylinder as a means for applying a biasing force, thereby applying a horizontal or upward biasing force to the window body. You can also do that. An example of such a type of window opening/closing drive device is a skylight opening/closing device (37) as shown in FIG. This converts the gravity acting on a weight (38) into a horizontal biasing force using a wire rope (39) and a pulley (40).

[Effects of the Invention] The window opening/closing drive device of the present invention provides, in addition to the barrel-making route for performing the window opening in a normal state, that is, the ohm and the fixed worm wheel, the window opening/closing drive device of the present invention provides an instantaneous opening/closing drive in preparation for an emergency. Since it is equipped with a separate operating path for opening and closing the window, it is particularly suitable for use as a smoke evacuation window in the event of a fire. Also, since it uses a worm and a worm wheel as the driving means, it can be used for large windows. Furthermore, since the meshing state between the worms is maintained even after the emergency operation, it is possible to easily return to normal operation.

[Brief explanation of the drawing]

FIG. 1 is a schematic front view showing an embodiment of the device of the present invention, FIGS. 2 and 3 are partially cutaway front views showing an embodiment of the worm wheel of the present invention, and FIG. 4 is a schematic front view showing an embodiment of the worm wheel of the present invention. FIGS. 5 and 6 are enlarged views of main parts showing one embodiment of the worm, and schematic perspective views showing other embodiments of the device of the present invention, respectively. (Main symbols in the drawing) (1), (29): Window frame (2), (28): Window body (3), (4): Worm (11), (12), (30), (31) : Worm wheel (15) : Window (16), (17) : Clutch member (26) : Teeth (27) : Part without teeth Fig. 1 1 and 2 λ 721

Claims (1)

[Scope of Claims] 1. A window frame, a window body provided to the window frame so as to be freely openable and closable and always biased in the opening direction, and a window body provided to the window frame so as to be freely rotatable around its axis. The worm wheel meshes with the worm and is rotatably connected to the window body via a clutch member, and the window body can be opened and closed by rotationally driving the worm. A window opening/closing drive device configured to open and close a window. 2. Claim 1, wherein the worms are two worms parallel to each other, and each worm has a toothless portion near an end on the opposite side to the urging direction of the window body.
Apparatus described in section.