JPH0442465Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Fields This invention is applicable to outward-folding windows in which the lower edge of the window board is hinged to the window frame and folded toward the outdoors, and in which the upper edge of the window board is attached to the window frame. In swinging windows such as projecting windows that are hinged to the outside and opened to the outside, a rope is passed through pulleys that are pivoted on the window frame and the window board, respectively, and by pulling the rope, the window board is moved in the direction of the opening. This invention relates to an opening/closing device that closes a window against bias and opens the window by drawing it out.

Problems to be solved by conventional techniques and ideas Swinging windows such as outward-folding windows and projecting windows have one end edge of the window board hinged to one end edge of the window frame, and a biasing device such as a telescoping stay. The biasing force biases the window in the fenestration direction,
A wire cable is passed through a pair of pulleys supported by the other edge of the window panel and the corresponding other edge of the window frame, and the window panel is swung in the closing direction and opening direction by pulling in and letting out the wire cables. However, as the swinging angle of the window board increases, the part of the wire rope that is tensioned between the pair of pulleys between the window board and the window frame becomes stiffer against the window board and window frame. Since the wire rope is tensioned diagonally, if the pulleys are supported against the window board or window frame so that they cannot tilt, both ends of the wire rope tensioned part between the two pulleys will be tensioned against the grooves of each pulley. This means that the wire rope will be inserted from an oblique direction, and the wire rope may rub against the outer edge of the pulley, or if the angle is large, the wire rope may come off the pulley.For this reason, conventionally, at least the pulley on the window frame The window frame is pivoted on a support that is freely tiltable with an axis parallel to the hinge axis of the window board, and the pulley on the window frame always follows the wire rope and changes its posture by pointing its tension direction. However, if the pulley on the window frame side is housed inside the window frame so that it is not exposed to the outside, it is necessary to place it close to the swinging end of the window plate, and it is necessary to place it close to the swinging end of the window plate. There was a risk that the swinging end of the window plate would hit the pulley support of the window frame and the window plate would no longer be able to swing, making it impossible to close the window.

Means for Solving the Problems The present invention, as a means for solving the above-mentioned problems, has a structure in which the support for the pulley of the window frame is pre-engaged with the swinging end of the window board just before the window board assumes the window closing position. The structure includes an engaging piece that tilts the support to a position where it does not collide with the swinging end of the window plate.

Effects and Effects of the Present Invention The swinging opening/closing window opening/closing device of the present invention has the above-mentioned configuration, and just before closing the window, the swinging end of the window board engages with the engagement piece of the support which is still in the tilted position. By tilting the support, interference with the window board is prevented, which has the effect of preventing the support and the window board from being damaged due to mutual interference and ensuring that the window can be closed. .

Embodiment Hereinafter, an embodiment in which the present invention is applied to an outward folding window will be described based on the accompanying drawings.

In Fig. 1, numeral 1 is a window frame fitted into the wall of a building, and the edge of the window plate 2 that opens and closes the opening of this window frame is hinged to the lower edge of the window frame 1. It is supported so that it can freely swing toward the outdoors, and is biased in the window opening direction by a biasing device (not shown) such as a telescopic stay installed between the window frame and the left and right sides of the upper end surface of the window board 2. At both ends, a pulley 3 is attached parallel to the upper end surface of the window frame 1 by being pivotally supported by a support member 5 fixed to the upper end surface of the window panel 2, and on the other hand, the inner surface of the upper edge of the window frame 1 , there are pulleys 6, 6 corresponding to the pulleys 3 of the window plate 2, respectively.
is attached to a support member 7 fixed to the window frame 1 while being supported by each support member 10, which is freely tiltable and supported by a support shaft 8 parallel to the hinge axis of the window panel 2, with one end attached to the window frame 1. The wire rope 11 connected to the frame 1 is paired with the pulley 6 of the window frame 1 and the pulley 3 of the window plate 2.
The other end is connected to a winding device (not shown) attached to a wall, and by winding up the wire rope 11 with this winding device, the window frame 2 is opened by a biasing device. By swinging in the window closing direction against the biasing force in the direction, and by letting out the wire rope from the winding device, the window plate 2 swings toward the outdoors by the biasing force of the biasing device. The window frame 1 of each pulley 3 is located in the vicinity of each pulley 3 that is non-tiltably supported on the upper edge of the window plate 2.
Support pieces 15 and 15 on both sides of the bracket 14 are provided with guide rollers that support and guide the portion of the wire rope 11 away from the groove of the pulley 3 on the sides corresponding to the bracket 14, respectively.
The part of the wire rope 11 that is tensioned between the pulley 3 of the window plate 2 and the pulley 6 of the window frame 1 is pivoted between the window plate 2 and the pulley 6 of the window frame 1. When the wire rope 11 gradually forms an oblique angle with respect to the pulley 3, the wire rope 11 becomes oblique to the groove of the pulley 3 and is prevented from being rubbed against the outer periphery of the pulley 3 or coming off from the pulley 3. In addition, when the window board 2 is closed, a guide roller 12 is placed near the pulley 3 of the window board 2 directly below the support 10 that supported the pulley 6 of the window frame 1, as shown in FIG. One support piece 15 of the supported bracket 14 corresponds to the other.

A support 1 pivotally supports each pulley 6 of the window frame 1.
An elongated steel plate 16 is fixed to the lower surface of each of the supports 10 at right angles to the support shaft 8, with one end protruding toward the front of the support 10. A joining piece 17 is formed.

Therefore, when the window plate 2, which is swung in the direction of closing the window by winding the wire rope 11, assumes a posture immediately before closing the window, as shown by the solid line in FIG. 1, the guide roller at the upper end of the window plate 2 The corner of the support piece 15 of the bracket 14 that supported the bracket 12 engages with the lower surface of the engagement piece 17 of the support 10, and as the window plate 2 further swings, the corner part of the support piece 15 engages with the lower surface of the engagement piece 17. Support piece 1
The support 10 is smoothly tilted upward by the engagement with the corner portion of the guide roller 12, and thereby the support piece 15 of the guide roller 12 is tilted downwardly of the support 10 without hitting the tilting end of the support 10. enter the
The window becomes closed as shown in FIG.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of an embodiment of the present invention, FIG. 2 is a partial cross-sectional view showing the window closed state, and FIG. 3 is a partial perspective view showing the window open state. 1... Window frame, 2... Window board, 3, 6... Pulley, 8
... Support shaft, 10 ... Support tool, 11 ... Wire rope, 17 ... Engagement piece.

Claims (1)

[Scope of utility model registration request] One end edge of a window board that opens and closes the opening of the window frame is hinged to one end edge of the window frame, and the window board is biased in the window opening direction;
A pulley is arranged on the other edge of the window frame and the other edge of the window plate corresponding to the other edge, and the pulley of the window frame is connected to the window plate by an axis parallel to the hinge axis of the window plate. A rope is pivotally supported on a support that is tiltably supported on the window frame, and a rope is stretched between the pair of pulleys of the window plate and the window frame, and the window plate is moved in the window closing direction by pulling in and letting out the rope. In a swinging opening/closing window opening/closing device that swings in the window opening direction, a support for a pulley of the window frame is provided with a swinging end of the window board in advance, just before the window board assumes the window closing position. An opening/closing device for a swinging opening/closing window, characterized in that an engaging piece is provided which, when engaged, tilts the support to a position that does not correspond to the swinging end.