JPH0569952B2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) This invention enables the window opening angle to be changed at will to two stages: half open (for ventilation) and right angle (for smoke exhaust) by pressing a button. This relates to an operation box for opening and closing windows.

(Conventional technology) Window opening/closing devices, which have traditionally been required to be installed, are manual devices as stipulated by fire regulations in order to forcibly exhaust toxic smoke generated in the event of a fire. very quickly using
On the other hand, since window closing was restricted to manual rotation of the handle, most operation boxes had a push button or lever for opening the window and a handle for closing the window, and had a mechanism (spring or stay dialer, auto hinge). etc.), the window continued to operate until it came into contact with the stopper and stopped.

Therefore, since the main purpose of the window opening/closing device is rapid forced smoke evacuation as mentioned above, there is no need to stop the window in the middle of opening, so only a single push button or lever is required for opening the window, and half-opening ( Most of the devices stopped at a fenestration angle of 45 degrees.

However, with such fenestrations, the opening conditions are the same for ventilation for air purification or for letting in direct sunlight (hygiene and health aspects) and for exhausting smoke (in the event of a fire emergency).
Smoke flowing outside the window comes into contact with a half-open window and then ascends, while a portion of it descends and returns indoors. Opening conditions are not necessarily ideal for forced smoke evacuation. I couldn't say for sure.

In addition, since manual window closing means are regulated, a check mechanism is essential for the reel that winds the wire, and the noise caused by the claws of the check mechanism bouncing back and forth during the winding operation of the manual handle is It was annoying to the ears, and urgent measures were needed to muffle the sound.

(Problem to be solved by the invention) When the main purpose is forced smoke evacuation, the fenestration angle (hereinafter referred to as fenestration angle) is such that when the window is perpendicular to the wall surface, it becomes an obstacle to smoke outflow. On the other hand, if you simply need ventilation, a half-open window angle (approximately 45 degrees) is sufficient; in the event of gusts of wind, rain, or odor, you can close the window quickly, and you can easily operate the handle. Since the fatigue level of the fenestration is also low, this is the reason why the fenestration angle has its own characteristics when it is widened or narrowed.

However, it is extremely troublesome for the person operating the fenestration to manually determine the characteristic fenestration angle each time as described above, so it is essential to provide the following conditions.

(b) To speed up the operation of changing the fenestration angle (one-touch orientation with easy hand-holding) and to completely prevent misidentification operations.

(b) The manual handle does not interfere with the above operations;
On the other hand, be careful not to interfere with the rotation of the handle.

(c) The fenestration angle conversion operation is extremely simple and can be performed day or night, and can be easily performed by any number of people or by the rain.

(d) Considering that half-open windows (ventilation) are frequently performed, noise from the ratchet claw of the check mechanism should be eliminated.

(e) Since most operation boxes are installed on wall pillars, the built-in configuration should be simplified so that they can be accommodated in narrow spaces.

(f) In terms of disaster prevention, special attention must be paid to the fact that operational failures will render the product unsuitable.

Unless it has a function that satisfies each of the above conditions and takes care not to impose a heavy burden on customers in terms of implementation, it will be impossible to obtain permission for disaster prevention performance and reputation among customers. had.

(Purpose of the invention) This invention provides a firefighting system that can instantly switch between a smoke evacuation function (right-angle fenestration) by operating one side of a plurality of button devices, and a ventilation function (half-right-angle fenestration) by operating the other side. We aim to reduce the installation burden through a simple configuration featuring a control box with a two-stage switching function for window opening/closing that complies with regulations, and to achieve both convenient daily ventilation and disaster prevention effects. purpose.

(Means for Solving the Problems) An operation box with a window opening angle converting device according to the present invention is an operation box for opening/closing a window.
The spur gear 2 of the intermediate reel 1, in which the wire W stretched from the reel D to the window edge is wound once above the reel D, and the spur gear 5 of the spur gear 4 at the end of the interlocking gear train are arranged perpendicularly to each other. Abutment 10 that rotates together
A contact plate 10 is screwed onto a screw shaft 7 with a bevel gear 6 mounted on the shaft, has a pawl 9 hanging from its lower end, and has a support 10 on its side.
When the lowermost push button 15 is retracted, it is moved forward toward the lid by the operation of the screw 17, and on the other hand, the tension spring 13 is activated to push the lowermost push button 15 toward the lid side. When the nut 8 comes into contact with another double nut 8A that is locked on the screw shaft 7, the guide cable 19 is attached to the cam body 11 that is suspended on the shaft 14 so that it retreats and the push button 15 returns via the screw. An arm lever K for raising and lowering the lever R, which has another ratchet pawl attached to it via a pulley at its tip, is pivotally mounted, and the oblique side B2 for tilting the arm lever K is bulged to one side for half-opening. This is characterized in that a hooking member P that comes into contact with a protruding piece B1 bulging on the other side of the push button B axis is provided to protrude obliquely upward from the shaft of the push button 15.

(Function) The operation box in this invention raises the lever by operating a push button, which was provided in the window opening/closing guiding device (Japanese Patent Application No. 152141/1982) filed earlier by the same inventor as this application. Then, the claw of the check mechanism (ratchet device) is disengaged, and the window pulls (feeds out) the wire of the reel linked to the check mechanism from the operation box using the restoring force of the bullet, opening the window. Since the pawl engagement is disengaged, no pawl noise is generated no matter how many times the handle is turned. Utilizing the prior art, this check mechanism G (pawl gear) is linked to a lever R having a pawl at the end. In order to tilt the arm lever for the operation, a separate push button device is attached to the control box, and the external appearance is formed into a single operation box.

[In the case of a half-open window (45 degrees)] When the half-open push button B, which is part of the prior art mentioned above, is pressed, the diagonal piece protruding from the button shaft tilts the arm lever K, and the lever R rises, causing a back check. When the claw engagement of the mechanism G is separated and the opening movement begins with the restoration of the bullet, the guide cable connecting the arm rod and the cam body becomes tense, and the wire W that tensions the window and the reel D also follows. A separate intermediate reel is driven to rotate a gear train consisting of left and right spur gears and intermediate gears, and a screw shaft with another bevel gear that is orthogonally meshed with the terminal bevel gear is rotated. The screwed nut cannot rotate because its side surface is in contact with the backing plate, so it descends as shown in the first diagram (arrow) due to the pairwise movement of the screws, and the claws protruding below
When it comes into contact with the protrusion of the cam body, which is attached to the shaft separately, the above-mentioned screw couple movement succumbs to the drag force of the cam body side pull spring and stops, and the screw passes through the bevel gear at the upper end of the screw shaft and is wound once around the gear train and the intermediate reel. Since all the interlocking members such as the wire W are stopped instantly, the window connected to the tip of the wire is prevented from opening and comes to a stopped state.

Therefore, the position of the nut when the window is closed and the position of the nut that has stopped in contact with the cam body, that is, the descent distance l of the nut, and the window opening angle is set in advance by half opening (45
If the interval is adjusted so that the window can be closed, if push button B is used to close the window, the window will be reliably half-open each time, and the window will always be biased in the opening direction even when the window is stopped. This prevents flapping due to wind pressure and is more than effective for daily ventilation. The window can be closed without any noise simply by rotating the handle H in the clockwise (positive) direction.

[In case of fully opening window (90 degrees)] Next, when closing the window, press the fully opening push button, which is the essential part of this invention, and the cam body will slide in the direction of the arrow by the screw action as shown in the second figure. The push button shaft is moved toward the lid of the operation box (as shown by the chain line), and at the same time, the protruding piece of the push button shaft is connected to the arm rod K that connects to the lower end of the check mechanism G.
, the arm lever is tilted to push up the lever R and disengage the claw from the check mechanism G, similar to the operation of the push button B for half-opening the window described above. The fenestration movement continues until it is stopped by a stopper (not shown) installed at a position where the fenestration is perpendicular to the wall surface. One side of the nut on the helical shaft only touches the abutment plate of the abutment, and there is nothing to prevent it from descending (the cam body moves and is in a non-contact state), and it descends to the point where the so-called fenestration is tight. When the window stops, the nut also stops naturally, and since the window is in a horizontal position perpendicular to the wall when it stops, there is no flapping due to wind pressure, and smoke can be exhausted without interfering with the progress of smoke flowing out from the opening. You can get the most out of it. In addition, the window can be closed by rotating the handle H in the same way as when the window is half open, and the claw engagement can be disengaged and the window can be closed without making any noise.
Comfortable operation.

The above is the operating state of each member during the individual window opening of the operation box equipped with multiple button devices that allow the window opening angle to be freely selected. An arm lever K that plays the role of engaging and disengaging the claw by pushing up the lever R that becomes the claw of the mechanism G.
The function of tilting the window is the same, but the difference is that in the case of half-opening push button B, the claw of the screw nut is prevented from descending by the protrusion of the cam body, and the window stops in a half-open state. The protrusion has the same role as the stopper S that prevents the window from opening fully.

Therefore, if a separate stopping double nut that does not loosen easily is screwed and tightened below the screw shaft when the window is fully opened (90 degrees), the above double nut can be fixed without installing a special stopper on the window frame side. The claw of the nut coming down comes into contact with the top surface, and the same blocking effect as when the window is stopped half-open ensures that the window opens at the right angle. The installation process is as simple as connecting it to the cord of the window opening/closing device, and the opening angle can be easily changed with the push of a button.

(Embodiment) An embodiment of the present invention will be described below with reference to the accompanying drawings. The window opening force applied to the present invention is achieved by using a well-known stay damper (a type of bomb) between both sides of the window and the window. This is secured by disposing it between the opening frame and the opening frame (as shown in Figure 5).

1 is an intermediary reel with a knurled surface for non-slip purposes on the body and one turn of a wire W stretched between the window and the reel D in the operation box 20; A spur gear 2 is integrally fixed to and interlocks with another spur gear 4 with a bevel gear 5 via an intermediate gear 3 to form a gear train. A screw shaft 7, which has another bevel gear 6 attached to its end that meshes with the bevel gear 5, is mounted on a U-shaped support 10 set upright on the vertical side so that it can rotate freely and not move up and down. It is inserted. Then, the side surface of the nut 8 screwed onto the screw shaft 7 and the contact plate 1
Since the distance between 0A and 0A is very small, the nut 8 does not idle, but follows the rotation of the screw shaft 7, performs a pairwise screw movement up and down, and slides on the surface of the contact plate 10A.
is fastened to the screw shaft 7 in order to prevent the nut 8 from descending when the window is fully opened.It rotates integrally with the screw shaft 7 and can be adjusted as desired to determine the fully open position of the window. It becomes a stopper.

The cam body 11 is slidably inserted into the shaft 14 in the operation box 20, and is pushed from the back side by a screw 17 that tilts in conjunction with the full opening push button 15 to the lid side of the operation box 20. It is possible to bend the tension spring 13 and shift it to one side (see the second phantom line in the figure), but due to the force of the tension spring 13 to return to its original shape, when the window is fully opened, that is, at the moment when the nut 8 comes into contact with the double nut 8A, Tilt the pushing screw 17 backward to make the fully open push button 15 protrude from the lid of the operation box, and move the cam body back to the position where the screw 17 is close to the back plate of the box (see the solid line in the second diagram). Prepare for repeated button push operations.

15 is a push button for fully opening, the shaft end of which is connected to another screw 17 pivotally attached to the support 16, and another half-opening push button that is in contact with a hooking member P projecting diagonally upward of the shaft when pushed. Press the protruding piece B1 of the push button B (45 degree fenestration) to push the push button B in the direction of the arrow. Since the wire is tilted in the direction of the arrow (see the phantom line) (as shown in the third figure), the lever R, which is connected to the arm rod K (not shown) and has a ratchet claw formed at its end, is raised, and the wire is Since the reel D is disengaged from the pawl engagement with the check mechanism G that is integrally attached to the first flange side of the reel D for winding W, that is, the so-called pawl gear (also referred to as the ratchet gear), the reel D is When the wire W is sent out by the opening force, the adjacent gear trains and bevel gears are interlocked with each other via the intermediate reel 1 to rotate the screw shaft 7, so that the side surface of the nut 8 screwed onto the screw shaft 7 is While sliding along the surface of the contact plate 10A, the window descends until it comes into contact with the double nut 8A, fully opens the window, and then stops. Therefore, the guiding cable initially tied to the arm rod K descends and reaches the cam body 1.
1 is rotated in the clockwise (positive) direction by the tilting angle of the arm lever, and the protrusion 12 that bulges out approximately horizontally on the cam body 11 also changes its position upward by the tilting angle of the arm lever, but at the same time. Although the tension spring 13 whose end is attached to the protrusion 12 of the cam body also relaxes diagonally upward, the cam body 11
moves forward under the action of the lever 17, and as a result, the strong tension spring 13 is bent into an arc shape and generates an elastic return force, that is, the cam body 11 is rotated in the clockwise reverse direction to raise the guiding rope 19 and the pulley 18 , the arm lever K and the associated lever R are both lowered to achieve pawl engagement and all functions for fully opening the window, such as the reel D and intermediate reel 1, are stopped.

In addition, if push button B for half-opening is pressed alone,
It is unrelated to the engaging member P of the push button shaft for full opening, and the push button B
However, the cam body 11 is located near the back plate inside the operation box and the lever 17 acts Therefore, as mentioned above, the claw engagement is disengaged due to the lever R rising as the arm lever tilts, and the claw 9 hits the protrusion 12 of the cam body 11 as the nut 8 descends, which is the effect of half-opening the window. When the cam body is tilted and the protrusion moves to a substantially horizontal position, the guide cable 19 tilts the arm rod K downward and simultaneously lowers the lever R to disengage the claw gear from the reel D. and the reel as well as the intermediate reel,
Since the half-open function of a gear train or the like can be stopped, the unique function of the present invention (conversion between fully open and half-open the window by pressing a button) works properly.

(Effects of the Invention) According to the present invention, the fenestration angle can be changed at any time with a single touch using a plurality of button devices without requiring any skill, and the window can be opened and closed without noise. By changing the screw-fitting position of the nut and double nut, the fenestration angle can be changed arbitrarily, and it can be attached to the wall pillar surface with an appearance that is not too bulky compared to conventional operation boxes, so it is not an eyesore. It does not impair the aesthetics of the room, and since it uses the existing components and winding wires around the windows and windows, it is convenient in that only the operation box needs to be replaced during installation. .

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view of the operation box of the present invention, Fig. 2 is a sectional view taken along line A-A' of the same as above, and
Fig. 3 is a perspective view showing the state of operation linkage of the push buttons;
The figure is a perspective overall view when the window is half opened, and FIG. 5 is a perspective overall view when the window is fully opened. In the figure, 1 is a mediating reel, 7 is a screw shaft, 8 is a nut, 9 is a pawl, 11 is a cam body, 12 is a projection, 15
19 is a push button, 19 is a lead wire, W is a wire, D is a reel, and G is a check mechanism. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Claims] 1. In the window opening/closing operation box, the intermediate reel 1 has a wire W stretched from a reel D with a non-return mechanism G for wire winding linked to the handle shaft to the window edge, and is wound once above the reel D. A helical shaft 7 with a bevel gear 6 mounted on a support 10 that rotates in mesh with the spur gear 2 and the bevel gear 5 of the spur gear 4 at the end of the interlocking gear train; The nut 8 is fitted and has a hook 9 hanging down at its lower end, and the side surface of the nut 8 is in sliding contact with the contact plate 10A of the support 10. Another protrusion 12 capable of coming into contact with the hook 9 is bulged out, and the lowermost push button 15
When it is retracted, it moves forward toward the lid by operating the lever 17,
On the other hand, a cam body 11 is mounted on the shaft 14 so that when the nut 8 comes into contact with another double nut 8A secured to the screw shaft 7 by the tension spring 13, it retreats and the push button 15 returns via the screw. , an arm rod K for raising and lowering the lever R, which has another ratchet pawl formed at the tip to which the guiding cable 19 attached to the cam body is attached via a pulley, is pivotally mounted, and an oblique side B2 for tilting the arm rod K. A fenestration angle characterized in that a half-opening push button B bulges on one side, and a hooking member P that comes into contact with a protrusion B1 bulges on the other side projects obliquely upward from the shaft of the push button 15. Operation box with conversion device.