JPH059429Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention normally allows windows to be opened at any angle for ventilation, but in the event of an emergency such as a fire, the windows can be opened instantly to the maximum opening angle. The present invention relates to a window opening/closing device.

[Conventional technology]

Conventionally, the above-mentioned window opening/closing device opens and closes the window with the upper or lower edge of the window as the center of rotation, and the opening/closing device uses, for example, the force of an opening spring built into the vertical frame of the window mounting frame. There are known configurations in which the window is opened by releasing the closing lock using a wire, configurations in which the window is opened and closed using a no-back chain, and configurations in which the window is opened and closed by a rack and pinion. .

[Problem that the invention attempts to solve]

However, with devices that use opening springs and wires built into the vertical frame, there is no problem when the number of interlocking windows to open and close is small, but when the number of interlocking windows increases to 4 or 5. ,
Since a single wire is drawn through each window to a drive box equipped with an operating handle and motor, the resistance caused by the wire tension increases, and the force of the opening spring forces the window to open to the set opening angle. In addition, since a strong tension is always applied to the wire, there is a large amount of wear caused by the wire roping, resulting in a lack of reliability.Furthermore, the vertical frame becomes larger, resulting in problems such as poor appearance. be.

In addition, in the case of equipment using a no-back chain, in order to maintain the rigidity of the no-back chain, the pressing force due to the weight of the window must be applied to the chain, so there is no problem when the opening angle is small. When the opening angle becomes large, for example 90°, the force applied to the chain is insufficient and the support rigidity of the chain cannot be ensured, so the opening angle of the window remains at around 60°, and a large opening angle is not achieved. Not only is it not possible to obtain sufficient smoke exhaust performance in the event of a fire, but since the windows are opened and closed by pushing out and pulling in the Norvac chain, it is not possible to instantly open the windows to the full opening angle in the event of an emergency such as a fire. There is a problem.

Furthermore, in the case of devices that use rack and pinion, there are problems in that the opening angle of the window cannot be opened as wide as, for example, 90 degrees, and that the mechanism is exposed to the outside, which deteriorates the appearance of the window. There is a point.

The present invention was developed as a result of studies in view of the above-mentioned problems.In normal situations, the window can be opened and closed steplessly at a desired angle, and in the event of an emergency such as a fire, the window can be opened and closed with a single touch. To provide a window opening/closing device which can be opened instantaneously to a widening angle and which can be stored using the lower frame of a window mounting frame without impairing the design of the window. That is its purpose.

[Means for solving problems]

That is, the present invention applies rotational force to the lower frame of the window mounting frame, to which the upper edge of the window is pivoted, via a transmission mechanism, to the drive shaft rotatably supported by the lower frame so as to open and close the lower edge of the window. A transmission shaft is installed to enable transmission and to be movable back and forth in the width direction of the window, and a slide member is screwed to the threaded part on the outer periphery so as to be able to move forward and backward in the axial direction. a screw shaft supported so as to be movable; a tension spring tensioned on the sliding member and the connecting member in a direction in which the sliding member and the connecting member are drawn relative to each other; and one end connected to the drive shaft with a universal joint; a drive shaft that is non-rotatable and slidably inserted into the screw shaft in the axial direction; one end of each shaft is rotatably connected to the lower frame and the lower edge of the window at a free angle; the other end is connected to the connecting member. a lower frame side arm and a window side arm that are rotatably supported by the lower frame side arm and the window side arm, and a connecting arm that has one end rotatably supported by the slide member and the other end rotatably supported by the intermediate portion of the window side arm; and a stopper pivotally supported on the connecting member so that the end of the screw shaft can be detachably locked and the end of the screw shaft can be unlocked by pulling the conduction shaft. This solved the above problem.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings.The window opening/closing device A is constructed as follows.
As shown in FIGS. 1 to 6, the window 1 has a hinge (not shown) on the upper frame 2a of the window mounting frame 2 so that the lower edge 1b of the window can be opened and closed in the vertical direction with the upper edge 1a of the window as the center of rotation. It is pivoted.

A drive shaft 4 is rotatably supported by a gear case 3 on one side of the lower frame 2b of the window mounting frame 2, and a conduction shaft 5 is disposed within the lower frame 2b. It is rotatably supported by the gear case 3 and a bearing (not shown) fixed to the lower frame 2b, and installed in the axial direction so as to be movable back and forth in the width direction of the window 1, and one end thereof. is connected to a transmission shaft 8 extending from the operation box 7 by a gear transmission mechanism (not shown) in the gear box 6, and the transmission shaft 5 is operated by a handle (not shown) of the operation box 7 or driven by a motor.
is formed to be driven and rotated.

The drive shaft 4 and the transmission shaft 5 are interlocked with each other by meshing gears 9 and 10, which are respectively fixed in the gear case 3.
The drive shaft 4 is driven and rotated by the transmission shaft 5.

One end of a drive shaft 11 is connected to the drive shaft 4 by a universal joint 16,
The drive shaft 11 is connected to the shaft hole 1 of the screw shaft 12.
2a so as not to rotate in the axial direction, and to be slidably (expandably) inserted into each other in the axial direction.

As the rotation prevention means for the drive shaft 11 and the screw shaft 12, for example, as clearly shown in FIG. It can be inserted and formed.

The threaded shaft 12 has a threaded portion 12b carved on its outer periphery so that the slide member 13 can move forward and backward in the axial direction, and is screwed onto the side on which the drive shaft 11 is fitted. Connecting member 1
4 so as to be rotatable and slidable in the axial direction, and is supported in a state where a flange 12c provided at the end abuts against the connecting member 14 and is prevented from detaching.

Further, the screw shaft 12 is equipped with a tension spring 15 for instantly opening the window 1 in an emergency, as will be described later.
The ends of the tension spring 5 are hooked to both members 13 and 14 so that tension is applied in the direction in which the connecting member 14 is drawn relative to the connecting member 14.

Further, when the window 1 is in a closed state as shown by solid lines in FIGS. 1 and 4, a bracket 17 is provided on one side of the connecting member 14 facing the conductive shaft 5 as clearly shown in FIG. 3. , the stopper 18, which has a substantially L-shaped side surface, has its bent portion connected to the support shaft 17a.
and one end 1 thereof.
The flange 12c of the screw shaft 12 can be detachably locked in the axial direction by a locking portion 18b provided in a substantially hook shape on the screw shaft 18a.
One end of the tension spring 15 is held in a stretched state by the connecting member 14, so that the tension spring 15 stores the force for opening the window in an emergency.

Further, the stopper 18 has the other end 18
c is installed as described above with the position set in advance so that it is engaged with the actuating piece 5a provided in the shape of a flange on the aforementioned conductive shaft 5 when the window 1 is closed. By being slightly pulled to the right in FIGS. 1 and 4, the actuating piece 5a rotates the stopper 18 counterclockwise, thereby releasing the locking of the screw shaft 12. be.

Further, when one end 18a of the stopper 18 comes into contact with the flange 12c of the screw shaft 12, the stopper 18 is rotated so as to lock the flange 12c to the locking part 18b. An inclined surface 18d is formed on one side of the tip of the end portion 18a.

When the slide member 13 is slid in the direction of arrow a in FIG. 1 with the window 1 closed,
Or, in an emergency, the engagement between the stopper 18 and the screw shaft 12 is released, and the screw shaft 12 is slid with respect to the connecting member 14 in the direction of arrow a' in FIG. 4 under the tension of the tension spring 15. One end of each of the window arm 19 and the lower frame arm 20 is attached to the window 1 so as to move the window 1 in the opening direction.
Connecting members 21 and 22 are interposed between the lower frame 2b and the lower frame 2b, respectively, so that the lower frame 2b is rotatably supported and connected with a degree of freedom in two axial directions: the window opening/closing direction and the direction perpendicular to the window opening/closing direction. , each of the arms 19 and 20 is rotatably supported by the connecting member 14, and furthermore, the window side arm 19 has a portion nearer to the pivot point with the connecting member 14 than an intermediate portion thereof. , the ends of the connecting arms 23 are pivotally connected to the slide member 13, respectively, and are folded and extendably connected.

In the above configuration, when the window 1 is fully closed, the screw shaft 12 slides to the right on the drawing paper by being locked by the stopper 18, as shown by solid lines in FIGS. 1 and 4. The connecting arm is held at an initial position where the flange 12c at one end is butted against the connecting member 14, and the slide member 13 screwed into the screw shaft 12 is held near the other end of the screw shaft 12. 23 is pulled into the lower frame 2b, and thereby the window arm 19, the lower frame arm 20, the drive shaft 11, and the screw shaft 12 are folded and stored in the lower frame 2b.

When opening the window 1 for ventilation from the above-mentioned closed state, the transmission shaft 5 is rotated in a predetermined direction by the handle of the operation box 7 or the motor via the transmission shaft 8 and the gear transmission mechanism in the gear box 6. , a drive shaft 11 and a screw shaft 12 are rotated via the drive shaft 4.

The screw shaft 12 is connected to the connecting member 1 whose rotation is prevented by being connected to the arms 19 and 20.
4, the slide member 13 moves in the direction of arrow a as shown in FIG.
3 is pushed outward, both folded arms 19 and 20 are opened, and window 1 is opened in accordance with the movement of slide member 13.

The position indicated by the broken line in FIG. 1 is the state where the window 1 is opened at 45°.

When the slide member 13 is further moved in the direction of arrow a by the rotation of the drive shaft 11 and the screw shaft 12, the arms 19 and 20 are further opened, and the maximum opening angle in this embodiment is reached as shown by the two-dot broken line in FIG. Window 1 is opened to 90°.

In the normal window opening described above, the stopper 18 is held in a locked state with the flange 12c provided at the end of the screw shaft 12, so the tension spring 15 does not act as a window opening force.

On the other hand, when closing the window 1 which is in the open state, the handle of the operation box 7 or the motor rotates the transmission shaft 5 in the opposite direction to that when opening, and rotates the drive shaft 11 and screw shaft 12 in the opposite direction to that when opening. By doing so, the slide member 13 moves in the direction opposite to the arrow a by the rotation of the screw shaft 12, and the window 1 can be closed to a predetermined opening angle or to a fully closed state.

Next, when opening the window instantaneously in an emergency such as a fire, slide the conductive shaft 5 to the right in the closed state shown by the solid line in Fig. 4, and use the operating piece 5a to move the stopper 18 counterclockwise. When the screw shaft 12 is released from the lock by rotating, the tension of the tension spring 15 acts in a direction to pull the connecting member 14 and the slide member 13 together, and the screw shaft 1
2 moves in the direction of arrow a' shown in FIG. 4 relative to the connecting member 14, and the arms 19, 20 are folded.
rotates in the opening direction, and window 1 is opened.

On the other hand, when closing the opened window 1, the transmission shaft 8, gears 10, 9, drive shaft 4, and drive shaft 1 are operated by the handle of the operation box 7 or the motor.
When the screw shaft 12 is rotated through the screw shaft 1, only the screw shaft 12 moves in the direction of the arrow b shown in FIG. Next, when the screw shaft 12 is rotated in the opposite direction, the slide member 13 moves to the initial position while extending the tension spring 15.
At the same time, the arms 19, 20, 23 are folded and the window 1 is closed.

[Effect of the invention] As explained above, since the window opening/closing device according to the invention is configured, during normal ventilation, the conduction shaft 5 is moved to a specified position by the handle of the operation box 7 or the motor. The window 1 can be opened to a desired angle by rotating the window 1 in the direction shown in FIG.
The screw shaft 12 is removed by the stopper 18 by a one-touch operation that only slightly pulls the screw shaft 12 in the axial direction.
By releasing the lock, the window 1 can be instantly opened to the fully open position by the tension of the tension spring 15, and the window opening angle can be set to 90° both during normal ventilation and in an emergency. Therefore, ventilation and smoke exhaust performance in the event of a fire can be fully demonstrated.Also, all the opening/closing devices are configured to be folded and stored within the lower frame 2b, so the window mounting frame can be enlarged and the component parts of the device can be Since the window is not exposed to the exterior, the design of the window is not impaired, and furthermore, the rotational force and pulling motion of the conduction shaft 5 can link the normal opening/closing and emergency opening of the multiple windows 1... , a plurality of windows 1 . . . can be opened and closed normally and opened in an emergency at the same time, and in an emergency, they can be instantly and reliably opened to the fully open position.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional plan view showing an embodiment of the window opening/closing device according to the present invention in a window normally open state, Fig. 2 is an enlarged cross-sectional view taken along the - line in Fig. 1, and Fig. 3 is a section B in Fig. 1. FIG. 4 is a cross-sectional plan view showing the window open state in an emergency in the same embodiment, FIG. 5 is a schematic front view of an example of the window installation state in the present device, and FIG. FIG. 1...Window, 1a...Upper edge of window, 1b...Lower edge of window,
2...Window mounting frame, 2b...Lower frame, 4...Drive shaft,
5... Conduction shaft, 11... Drive shaft, 1
2...screw shaft, 12b...screw part, 13...
...Slide member, 14...Connection member, 15...Tension spring, 16...Universal joint, 18
...stopper, 19,20,23...arm.

Claims (1)

[Scope of utility model registration request] The lower frame of a window mounting frame to which the upper edge of the window is pivoted to open and close the lower edge of the window is capable of transmitting rotational force to a drive shaft rotatably supported by the lower frame via a transmission mechanism, A conductive shaft is constructed so as to be movable back and forth in the width direction of the window, and a slide member is screwed to the threaded portion on the outer periphery so as to be able to move forward and backward in the axial direction, and one end is supported by the connecting member so as to be rotatable and movable in the axial direction. a tension spring that is tensioned on the sliding member and the connecting member in a direction in which the sliding member and the connecting member are pulled together relative to each other; and a drive shaft that is slidably inserted in the axial direction; one end of each shaft is rotatably connected to the lower frame and the lower edge of the window at a free angle, and the other end is rotatably connected to the connecting member. A lower frame side arm and a window side arm are supported, a connecting arm whose one end is rotatably supported by a slide member and whose other end is rotatably supported by an intermediate portion of the window side arm, and an end of the screw shaft. and a stopper that is rotatably supported on the connecting member so that the end of the screw shaft can be unlocked by pulling the conductive shaft. Window opening/closing device.