JPH033793B2 - - Google Patents

Description

[Detailed description of the invention] 〔Technical field〕 This invention relates to a skylight opening/closing structure.

[Background technology]

As a conventional example, Japanese Patent Application Laid-Open No. 57-071979 (Patent Application
There is a skylight (No. 56-128858). This skylight has a rotating shaft extending parallel to the upper cross beam on the ridge side of the upper cross beam of the opening frame installed on the sloping roof, and the base end of the window part is connected so as to be rotatable around the rotation axis. Then, a tension coil spring is installed along the upper crossbeam of the opening frame, and the lower part of the operating lever arranged on both sides of the spring is pivotally connected to the upper crossbeam, and the center part of the operating lever is attached to both ends of the tension coil spring. A guide is provided on both sides of the base end of the lower surface of the window to extend parallel to the upper cross beam, and a sliding piston is slidably mounted within the guide, and the upper end of the operating lever is connected to the sliding piston. . In this way, the window portion is opened by rotating and raising the operation lever so that the sliding piston slides inward of the guide using the tensile force of the tension coil spring.

However, since the rotational direction of the window and the rotational direction of the operating lever are orthogonal to each other, there is a problem in that the frictional resistance between the guide and the sliding piston becomes large, making it difficult to smoothly open and close the window. Also,
The window is held open by hooking the locking pawl into the groove of the locking element provided on the window side, so if the window is closed while it is still hooked, the locking element and the locking There was also a risk that the nails would be damaged. Furthermore, since the angle at which the window is held open is determined by the position of the grooves in the locking element, the window can only be opened in stages by the number of grooves.In other words, the window can be held open at any angle. It also had the drawback of not being able to do so.

[Purpose of the invention]

An object of the present invention is to provide a skylight opening/closing structure that allows the window to be opened and closed smoothly, has increased durability, and allows the window to be opened and held at any angle.

[Disclosure of the invention]

The skylight opening/closing structure of the present invention includes: an opening frame; a pair of vertical pieces protruding from the outer surface of the opening frame and facing each other; a horizontal rotation shaft extending between the tips of the vertical pieces; a pair of sliding shaft guide portions formed opposite to each other so as to extend in a radial direction with respect to the rotating shaft at the base end portions of both vertical pieces; a sliding shaft slidably spanned between these guide portions; and one end. a cam that is pivotally connected to the rotating shaft and has a cam surface formed at the other end with a cam surface whose radius of curvature with respect to the rotating shaft gradually increases from the bottom to the top; and a sliding shaft that is suspended between the sliding shaft and the rotating shaft. A tension spring is pressed into contact with the cam surface, and a window frame whose base end is fixed to the top of the cam.

An embodiment of the present invention will be described with reference to FIGS. 1 to 8. Fig. 1 is a perspective view showing the window closed state, Fig. 2 is a perspective view showing the window open state, Fig. 3 is an enlarged sectional view of the window closed state, Fig. 4 is a side view of the main part, Fig. 5 The figure is an enlarged sectional view of the window in the open state.

In these figures, reference numeral 1 denotes a metal opening frame, which is fixed with screws 3 onto a wooden frame 2 (FIG. 3) installed on the roof. 4 is a metal window frame, into which a glass plate 5 is fitted. As shown in FIGS. 1 and 2, this window frame 4 can be opened upwardly and slidably sideways by a pair of connecting mechanisms A (one not shown) arranged on both sides of the opening frame 1. Install.

FIG. 6 shows a perspective view of essential parts of the connection mechanism A. In the figure, 6 is a case having a pair of vertical pieces 6a facing each other, and a horizontal rotating shaft 7 is spanned between one ends of both vertical pieces 6a. 8 is the upper piece 8a
The cam has an inverted U-shaped cross section and includes pieces 8b on both sides, one end of which is pivotally supported on the rotating shaft 7, and a cover 8c attached to the other end. In addition, the outer circumferential curved surface on the other end side of the cam 8 is finished into a cam surface 9 whose radius of curvature relative to the rotating shaft 7 gradually increases from the bottom to the top, and the central part of both side pieces 8b is shaped like an arc with the rotating shaft 7 as the center of curvature. Guide holes 10 are formed facing each other. Then, the angle regulating shaft 11 is inserted into both the guide holes 1
0 and bridges between both vertical pieces 6a in a state parallel to the rotating shaft 7, the angle regulating shaft 11
to regulate the rotation angle of the cam 8. This regulation angle is usually set so that the window does not open more than 45 degrees, but it is of course free to set it to an angle other than 45 degrees.

On the other hand, a sliding shaft guide elongated hole 1 is provided on the other end side of both vertical pieces 6a so as to extend in a radial direction with respect to the rotating shaft 7.
2 are formed facing each other, and a sliding shaft 13 is slidably spanned between these elongated guide holes 12, and a tension coil spring 14 is suspended between this sliding shaft 13 and the rotating shaft 7. 13 is brought into pressure contact with the cam surface 9.
The connection mechanism A is attached to the attachment part 6 of the case 6.
b and 6c are fixed to both sides of the opening frame 1 (FIGS. 1 and 2) with screws 15 (FIG. 4).

A guide rail 16 is fixed to the upper piece 8a of the cam 8 with screws 17 as shown in FIG.
A traveling rail section 18 provided on the base end side of the guide rail 16 is attached to the guide rail 16 via a ball bearing 19 so as to cover the guide rail 16. This window frame 4
is slidable in the direction perpendicular to the plane of the paper in FIG. 3 due to the engagement of the guide rail 16 and the traveling rail portion 18, and the ball bearing 19 allows the sliding to occur smoothly.

Next, the operation of this device will be explained. First, as shown in FIG. 3, when the window is closed, the window 2
0 (consisting of the window frame 4 and glass plate 5) is applied directly onto the cam 8 via the guide rail 16,
The cam 8 is in the depressed position and the tension coil spring 14 is extended.

From this state, as shown in FIG.
When the open side end (opposite side of the rotating shaft 7) is lifted and opened, the load of the window 20 applied to the cam 8 is reduced, so the tension coil spring 14 is compressed and the sliding shaft 1
3 toward the rotating shaft 7 side, and as a result, the sliding shaft 1
3 moves along the guide elongated hole 12 while rotating while in contact with the cam surface 9, and the cam 8 moves along the rotation shaft 7.
It is lifted upwards with the center at the center. When the window portion 20 is opened by 45 degrees, the angle regulating shaft 11 is engaged with the lower end of the guide hole 10, and further opening of the window portion 20 is restricted.

In this state, when you release your hand from the window 20, the window 20
0 is applied to the cam 8 via the guide rail 16, and the cam 8 receives a force that rotates the rotating shaft 7 downward from the center. ), the force acting on the cam 8 is smaller than in the case of ), so the force pushing the cam 8 upward by the tension coil spring 14 is greater than the force pushing the cam 8 down, and as a result,
The window portion 20 does not fall down and remains open.

Note that when the opening angle of the window section 20 is lowered to an arbitrary angle of 45 degrees or less, the dead weight moment of the window section 20 applied to the cam 8 changes, and the spring of the tension coil spring 14 changes in response to this change. By setting the curved shape of the cam surface 9 in advance so that the force changes, it becomes possible to hold the window portion 20 open at an arbitrary opening angle.

According to this skylight opening/closing structure, the following effects can be obtained.

(1) The window portion 20 can be held open at any angle.

(2) The direction of rotation of the window portion 20 is the same as the direction of rotation of the cam 8 that transmits the load to the tension coil spring 14, and the sliding shaft 13 rotates and slides along the cam surface 9. Since the frictional force between the moving shaft 13 and the cam surface 9 is extremely small, the opening and closing operations of the window portion 20 can be performed smoothly, and durability can be improved as no excessive force is applied to the members (3). As a result of the window 20 being able to be opened and closed smoothly, when a strong wind blows when the window is opened, the window part 20 closes in response to the wind force, automatically preventing the strong wind from blowing into the room.

(4) As shown in Figure 7, connect the coupling mechanism A to the window 20.
When placed outside the window, the total length L is longer than the length W of the window 20, but in the present embodiment, the eighth
As shown in the figure, since the connecting mechanism A is disposed below the end of the window portion 20, the overall length W can be shortened. Moreover, the connecting mechanism A is not installed on the roof surface 22 via the spacer 21 as shown in FIG. 7, but is directly attached to the opening frame 1 as shown in FIG. 22 construction work can also be simplified.

(5) Since the tension coil spring 14 is covered inside the window by the cover 8c of the cam 8, it is excellent in design and safety.

In the above embodiment, a skylight in which the window frame 4 can be slid laterally along the guide rail 16 has been described, but in this invention, the window frame 4 and the guide rail 16 are integrated and the window portion 20 is It is also widely applicable to ordinary skylights that do not slide.

〔Effect of the invention〕

According to the skylight opening/closing structure of the present invention, the window section can be opened and closed smoothly, durability is increased, and the window section can be held open at any angle.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the present invention showing the window open state, FIG. 2 is a perspective view similarly showing the window closed state, FIG. 3 is an enlarged sectional view of the window closed state, and FIG. 4 is a perspective view showing the window closed state. 5 is an enlarged sectional view of the window in the open state, FIG. 6 is a perspective view of the main portion of the coupling mechanism, FIG. 7 is a schematic diagram of the comparative example, and FIG. 8 is a schematic side view of the present example. It is a diagram. DESCRIPTION OF SYMBOLS 1... Opening frame, 4... Window frame, 6a... Vertical piece, 7... Rotating shaft, 8... Cam, 9... Cam surface, 12... Sliding shaft guide elongated hole, 13... Sliding shaft, 14... Tension coil spring.

Claims (1)

[Claims] 1. An opening frame, a pair of vertical pieces facing each other and protruding from the outer surface of the opening frame, a horizontal rotating shaft spanning between the tips of these vertical pieces, and base ends of both vertical pieces. a pair of sliding shaft guide parts formed opposite each other so as to extend in a radial direction with respect to the rotating shaft, a sliding shaft slidably spanned between these guide parts, and one end pivotally connected to the rotating shaft. a cam formed at the other end with a cam surface whose radius of curvature with respect to the rotating shaft gradually increases from the bottom to the top; and a cam suspended between the sliding shaft and the rotating shaft so that the sliding shaft is pressed against the cam surface. A skylight opening/closing structure comprising a tension spring and a window frame whose base end is fixed to the top of the cam.