JPH0523737Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention supports a shoji with a glass plate or the like stretched on one side of a window frame fitted into a window hole cut through a window hole in the outer wall of a building, and supports a shoji with a spring body. A projecting window opening/closing device that uses elasticity to force the other side in the direction of opening the window by protruding it outdoors, and also closes the window against the elasticity of a spring body by pulling a wire connected to the shoji. Regarding.

Problems to be solved by conventional techniques and ideas Conventional projecting windows have a telescopic stay that houses a coil spring or sealing gas in a cylinder, and uses the elasticity of the coil spring to bias the piston rod in the direction of protruding. Because the shoji was biased in the direction of window opening by being placed diagonally between them, part of the biasing force of the telescoping stays acted as a bending load on the supporting parts of the shoji, such as the hinges. In the closed window state where the windows are substantially parallel, most of the biasing force of the telescoping stay acts on the support portion, deforming or wearing it, resulting in early deterioration of sealing performance.

Means for Solving the Problems The present invention aims to solve these problems by supporting a shoji on one side of the window frame, and installing a shoji screen made of two long and thin boards facing each other with an interval between them. One end of the first arm is pivotally supported on the window frame, and one end of the second arm, which is pivotally supported with the middle part sandwiched between two plates at the other end of the first arm, is connected to the shoji. The flexible strip for fenestration connected to the other end of the two arms is connected to the first
The cable is routed through between two plates of the arm to form a bulging guide part near the other end of the second arm, and when the window is closed, the flexible strip for fenestration contacts the guide part and connects with the first arm. A spring body in which a space is provided between the connecting shaft of the second arm and the flexible strip for fenestration in a direction perpendicular to the pulling direction of the flexible strip for fenestration, and the flexible strip for fenestration is attached to the window frame. The window closing wire is connected to the shoji to urge the shoji in the direction of opening the window, and to pull the shoji in the direction of closing the window.

Functions and Effects of the Invention The present invention has the above structure, and the flexible strip for fenestration is pulled by the elasticity of the spring body, so that the second
Since the arm swings about the intermediate point supported by the first arm as a fulcrum and acts to project the window panel to the outside, most of the tensile force of the flexible strip for fenestration is generated by the first arm.
Since the load acts on the support shafts at both ends of the arm, the load acting on the support part of the shoji is extremely small, and deformation and wear of that part are kept to a minimum, resulting in excellent durability. Furthermore, in the present invention, the first arm is constructed of two long thin plates facing each other with a gap between them, and the middle part of the second arm is sandwiched between the two plates and is pivotally supported and connected to the second arm. It has a structure in which a flexible strip for fenestration is routed between two plates.For example,
When the first arm is composed of one plate and the first arm is connected to one side of the middle part of the second arm by overlapping the first arm, the tensile force of the flexible strip for fenestration causes the first arm to
A bending moment that bends one end of the connecting shaft between the arm and the second arm will cause the connecting part to bend, and if it bends outward, it may interfere with the window frame, and if it bends inward, it may interfere with the shoji screen. However, by using the above structure, the first arm and the second
It is possible to avoid applying a bending moment that bends one end side to the connecting shaft of the arm, and to prevent the connecting portion from bending.In addition, as described above, the first arm is spaced apart from each other. Since it is composed of two plates placed opposite each other, the moment of inertia of the area is large and the buckling load is high, so even if the thickness of each plate is thinned, the necessary buckling load can be obtained and the weight is reduced. It has the effect of being able to measure

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

In the figure, 1 is a window frame fitted into a transparent window hole in the outer wall of a building, and a shoji 3 with a glass plate 4 stretched through a hinge 2 provided on the inner surface of its upper edge.
The window frame 1 is hung and supported so that it can freely swing in the direction of opening the window by protruding to the outside.
The lower end of a first arm 5, which is made up of two elongated plates 6, 6 that correspond to each other at a distance, is supported by a shaft 7 near the lower end of the inner surface on both sides of the shoji 3. Near the lower end of the fenestration chain 18, a proximal end portion of a second arm 9 made of a single elongated plate is supported by a shaft 11. , as shown in Figure 2,
A reinforcing plate 12 having a U-shaped cross section is applied to the intermediate part near the tip of the second arm 9 so as to sandwich both sides of the reinforcing plate 12, and the intermediate part of the second arm 9 to which this reinforcing plate 12 is applied is It is sandwiched between two plates 6, 6 at the upper end of one arm and supported by a connecting shaft 13, and is fixed at a position closer to the indoor side of the inner surface of both side edges of the window frame 1. Directional elongated holding cylinder 1
A compression coil spring 16 is fitted inside 5,
A rod 17 that hangs down inside the hollow of the compression coil spring 16 with its upper end connected to a stopper 19 placed on its upper surface.
One end of the fenestration chain 18 is connected to the lower end of the fenestration chain 18, and the other end passes through the hollow of the compression coil spring 16 and protrudes from the lower surface of the holding cylinder 15, and a sprocket is pivotally supported on the window frame 1 below. 20
is connected to the tip of the second arm 9 by passing between the two plates 6 of the first arm 5, and two shoji-side pulleys are installed at both ends of the lower end surface of the shoji 3. 21 is also provided with shafts 22 at both ends of the lower edge of the window frame 1.
Two brackets 23 supported freely by
Window frame side pulleys 24 are each pivotally supported on the window frame side pulleys 2, and a window closing wire 25 unwound from a winding drum (not shown) disposed at the lower part of the room is attached to the window frame side pulleys 2.
4 and the shoji side pulley 21, and its terminal is fixed to the wall.

Next, to explain the operation of this embodiment, since the fenestration chain 18 is constantly pulled via the rod 17 by the elastic expansion force of the compression coil spring 16, the second arm 9 connected to one end thereof is , a rotational force in the clockwise direction in FIG. 1 is applied using the connecting shaft 13 at the upper end of the first arm 5 as a fulcrum, and the shoji 3 is pushed out to the outside as shown by the solid line in the figure. In this state, when the winding drum (not shown) is rotated and the window closing wire 25 is pulled, the shoji 3 rotates about the hinge 2 so as to be drawn indoors, and the second arm 9 The first arm 5 is folded and gradually assumes an upright position, and the shoji 3 hits the gasket 26 of the window frame 1 to close the window, as shown by the chain line in the figure. At this time, the compression coil spring 16 closes the window. The tension chain 18 is elastically contracted and the fenestration force is stored, and in this fenestration closed state, the guide portion 1 formed at the tip of the second arm 9
0 protrudes toward the indoor side, and the fenestration chain 18 rides on the guide part 10 and is routed. During window opening, when the window closing wire 25 is unwound by reversing the winding drum (not shown), the window opening chain 18 is pulled by the biasing force of the compression coil spring 16, and as described above, the window opening chain 18 is pulled out. The connecting shaft 1 rides on the guide part 10 and serves as the center of rotation of the second arm 9.
Since there is a gap between the fenestration chain 18 in the direction perpendicular to the direction in which the fenestration chain 18 is pulled, the moment for rotating the second arm 9 is large, and the shoji 3 is quickly moved to the outdoor side immediately after the window is opened. It is pushed out and opens.

In this embodiment, the first arm 5 has two
It is composed of two plates 6, 6, and is supported by a connecting shaft 13 with the middle part of the second arm 9 connected to the fenestration chain 18 sandwiched therebetween.
During the above operation, even if a tensile force is applied to the fenestration chain 18, a bending moment that bends one end side of the connecting shaft 13 is not applied, so there is no risk of the connecting portion bending, and The first arm 5 is subjected to a large buckling load due to the tensile force of the fenestration chain 18, but as described above,
Since the first arm 5 is composed of two plates 6 spaced apart from each other, the required high buckling load can be obtained even if the thickness of each plate 6 is made thinner, making the first arm 5 lightweight. can be manufactured.

In the above embodiment, the fenestration chain 18 connected to the second arm 9 is connected to the sprocket 20.
It may be connected to the upper end of a tension coil spring whose lower end is connected to the window frame 1 and pulled downward without being bent.

Additionally, the fenestration chain 18 can be replaced with other flexible strips such as wire.

Further, the present invention is not limited to a projecting window in which the shoji 3 is supported on the upper edge of the window frame 1 and opened by protruding the lower edge side as explained in the above embodiment. It is also applicable to other types of projecting windows that are opened by supporting the lower edge of the window frame 1 and protruding the upper edge side, or by supporting it on one side edge and protruding the other side edge side. The same can be applied.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view of one embodiment of the present invention, and FIG. 2 is a partially cutaway plan view of the connecting portion of the first arm and the second arm when viewed in the direction of arrow A in FIG. 1... window frame, 2... hinge, 3... shoji, 5...
First arm, 6... Elongated plate, 9... Second arm, 16... Compression coil spring, 18... Window opening chain (flexible strip), 25... Window closing wire.

Claims (1)

[Scope of utility model registration request] A shoji is supported on one side of the window frame, one end of a first arm made up of two long and thin plates arranged opposite to each other with an interval is pivotally supported on the window frame, and the other end of the first arm is One end of the second arm, which is pivotally supported with its intermediate part sandwiched between two plates, is connected to the shoji, and the flexible strip for fenestration connected to the other end of the second arm is connected to the first
The cable is routed between the two plates of the arm to form a bulging guide portion near the other end of the second arm, and the flexible strip for fenestration contacts the guide portion when the window is closed. a space between the connecting shaft of the first arm and the second arm and the flexible strip for fenestration in a direction perpendicular to the pulling direction of the flexible strip for fenestration;
The flexible strip for opening the window is connected to a spring body attached to the window frame to bias the shoji in the window opening direction, and a window closing wire that is pulled in the window closing direction is connected to the shoji. A projecting window opening/closing device featuring: