JP2607711B2 - louver - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a louver that is provided on a window surface and adjusts the amount of light collected from outside the room.

[Conventional technology]

Conventionally, as a type of louver, there is a louver that is provided inside a skylight so that the amount of light collected from the skylight can be adjusted, and the slat is rotated to a fully closed state and used as a dark curtain. As an example of such a louver, for example,
In the device disclosed in Japanese Patent No. 8878, a large number of slats are arranged side by side in a horizontal direction, each slat is rotatably supported, and each slat is connected by a link mechanism to rotate the same phase. When the slats are rotated in the vertical direction, external light is taken in from the skylight, and when the slats are rotated in the horizontal direction, the edges of the slats are vertically overlapped to block external light.

[Problems to be solved by the invention]

In order to use the louver as a blackout curtain, a light-shielding frame is provided which abuts on the longitudinal edge of the slat when the slat is rotated in the horizontal direction and is fully closed, and the slat is extended from the longitudinal edge of the slat. It is necessary to prevent leakage of external light.

However, in the louver, since the center of rotation of each slat is located on the center line in the slat width direction, when the slat is rotated from the fully closed state to the fully opened state, the lower end position of the slat is lowered. For this reason, the light-shielding frame located at the longitudinal edge of the slat cannot be provided above the lower end of the slat when the slat is fully opened. As a result, the slat is located between the light-shielding frame and the slat longitudinal edge when the slat is fully closed. There is a problem that a gap having a size corresponding to the amount of rise of the lower end position during rotation is generated, and external light leaks from this gap.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a louver that does not generate a gap between a slat edge and a light-shielding frame when the slat is fully closed.

[Means for solving the problem]

The present invention solves the above-mentioned problems by supporting a multi-stage slat on a frame so as to be rotatable,
Connect each slat with a link mechanism and rotate it in phase,
At the time of opening, each slat rotates so that it is located in parallel,
When closed, the louvers that rotate so that the slats are connected in a flat plate and block light are used.Each slat is formed almost flat except for the end in the width direction, and the rotation axis of each slat is Offset from the center line in the width direction of the slat to one side, so that each flat plate portion of each slat is arranged on the same plane when closed, and the end of the slat on the rotation axis side has the same rotation axis. A curved portion that is curved with a diameter that is equal to or less than the shortest distance from the slat surface to the slat surface. Is provided with a light-shielding frame in contact with.

[Action]

By the above means, when the slat is fully closed, each flat plate portion of each slat is arranged on the same plane. Each flat plate portion is in contact with the light shielding frame in the vicinity of the longitudinal edge of each slat, so that the slat does not collide with the light shielding frame when the slat is rotated.

〔Example〕

An embodiment of the present invention will now be described with reference to FIGS.
Description will be made with reference to the drawings.

As shown in FIG. 5, a louver 1 provided inside the skylight has a plurality of slats 2 arranged in a horizontal direction, and a light-shielding frame 3 made of an angle material is provided around the slats 2.
Are arranged. The driving device for the slats 2 will be described. As shown in FIG. 1, a plurality of support frames 4 arranged in parallel in a direction perpendicular to each slat 2 above the light-shielding frame 3 are suspended from a building structure 5. The light-shielding frame 3 is supported at both ends thereof. Support arms 6 extending downward in the vertical direction are provided at equal intervals on the support frame 4, and one end of a slat holder 7 is rotatably supported on a lower end of each of the slat holders 7 about a rotation shaft 6a.

Each slat holder supports a slat 2 formed of an extruded aluminum material. The slat 2 has an intermediate portion in the width direction formed in a flat plate shape, and a pair of locking sides 8a, 8b protrudingly formed on the back surface, that is, the upper surface in the mounted state, and is supported on the slat holder 7 by the locking sides 8a, 8b. Have been. As shown in FIG. 1, the rotating shaft 6a does not exist on the center line C of the slat 2 in the width direction, and the distance L
It is a position offset only by. In addition, a felt 3a is attached to the slat contact surface of the light shielding frame 3.

At one end of the slat 2 located on the support arm 6 side, a curved portion 9 is formed which is curved with a diameter equal to the shortest distance between the rotation shaft 6a and the lower surface of the slat 2 in FIG. The edge is also bent upward and the abutting part
A contact portion 10 is formed so as to contact the curved portion 9 of the adjacent slat 2 from above when each slat 2 is rotated in the horizontal direction. In addition, a gasket 10 a formed of a synthetic resin is attached to the contact portion 10 so as to be in close contact with the curved portion 9. And the light-shielding frame 3
The slat contact surface is located so as to be in contact with the turning locus R of the curved portion 9 about the turning shaft 6a.

As shown in FIG. 1, on the other side of each slat holder 7, holder arms 7a are formed which extend obliquely upward so as to move away from the rotation shaft 6a while the slat 2 is rotated in the horizontal direction. The tip of the arm 7a is rotatably supported by the slide bar 11 so that all the slat holders 7 have the same phase.

A drive gear 12 that is rotatably driven by a motor (not shown) is supported above the support frame 4, and a gear wheel 14 is fitted to a drive shaft 13 that is rotatably supported by the support frame 4. 14 meshes with the drive gear 12. Therefore, when the drive gear 12 is rotated, its rotation is
The speed is reduced by 14 and transmitted to the drive shaft 13.

The base end of a first arm 15 is fitted to the drive shaft 13, and the base end of a second arm 16 is rotatably supported at the tip of the first arm 15. The tip is rotatably supported by the slide bar 11. Therefore, the drive shaft 13
Is rotated, the slide bar 11 is moved in the left-right direction in FIG. 1 via the first and second arms 15 and 16, so that each slat holder 7 is rotated in the same phase. .

Now, in the louver 1 constructed as described above, when the louver 1 is opened, each slat 2 is rotated in the vertical direction as shown in FIG. In this state, when the motor is operated to close the louver 1 and the drive shaft 13 is rotated in the direction of arrow A, the respective slat holders 7 have the same phase via the first and second arms 15 and 16 and the slide bar 11. 3, each slat 2 is rotated in the horizontal direction as shown in FIG. 4, and in this state, both ends of each slat 2 in the longitudinal direction abut on the upper surface of the light shielding frame 3. Touch At this time, since the curved portion 9 moves on the rotation trajectory R which is a circle contacting the upper surface of the light shielding frame 3, it does not collide with the light shielding frame 3. And the contact part 10 of each slat 2 is the curved part 9 of the adjacent slat 2.
From above.

As described above, in the louver 1, when the slat 2 is rotated in the horizontal direction to be in the fully closed state, the edge of the slat 2 is in close contact with the light-shielding frame 3, so that intrusion of external light from the skylight is reliably blocked. And the slats 2 do not collide with the light shielding frame 3.

In the above-described embodiment, the light-shielding frame 3 is rotated around the rotation shaft 6a.
Although the bending portion 10 was curved with a diameter equal to the circle in contact with the upper surface,
If the bending portion 10 is bent with a smaller diameter than the circle in contact with the upper surface of the light-shielding frame 3 around the rotation shaft 6a, it does not collide with the light-shielding frame 3.

〔The invention's effect〕

As described in detail above, the present invention has an excellent effect of providing a louver that reliably blocks external light from entering when the slat is fully closed.

[Brief description of the drawings]

FIG. 1 is a front view of a louver embodying the present invention, FIG.
4 are explanatory views showing the operation of the louver, and FIG. 5 is a perspective view of the louver. The slat 2, the light shielding frame 3, the rotating shaft 6a, the curved portion 9, the center line C, and the rotating locus R.

Claims (1)

(57) [Claims] 1. A multi-stage slat is rotatably supported on a frame body, and each slat is connected by a link mechanism and rotated in the same phase. This louver is a louver that moves so that when closed, each slat rotates so as to be connected in a flat plate shape and blocks light, and each slat (2) has a substantially flat plate shape except for its widthwise end. With the rotation axis of each slat (2) (6
a) is offset from the center line (C) in the width direction of the slat (2) to one side, and each flat plate portion of each slat (2) is arranged substantially on the same plane when the slat (2) is closed. ) Is provided with a curved portion (9) which is curved with a diameter smaller than the shortest distance between the rotating shaft (6a) and the surface of the slat (2). ), A light-shielding frame (3) is provided near the longitudinal edge of the curved portion (9) so as to be in contact with the lower end of the rotation locus (R) of the curved portion (9) and to be in contact with each flat plate portion of each of the slats when closed. And louver.