JPH047481Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a louver equipped with an opening/closing device.

(Prior Art) Conventionally, in this type of louver, a large number of blades arranged parallel to each other in a louver frame are connected to pivot pins at both ends of the center of each blade by connecting them to opposite frame members of the louver frame. There is a known structure in which each blade is supported by a common interlocking bar, and by operating the interlocking bar, each blade is kept parallel to each other and rotated synchronously. There was a drawback that it was easy to see from the outside.

In order to improve this, the present inventor first proposed that, in a large number of blades arranged in parallel to each other in a louver frame, every other blade group among the large number of blades is The pivot pins at both ends of each side are guided by the opposing frame members of the louver frame so as to be movable in the longitudinal direction of the frame members, and can be rotated and slid open in a certain direction as the pivot pins move. In addition, every other blade group is guided by the pivot pins at both ends of the other side to be movable in the longitudinal direction of the frame members, and the pivot pins are controlled to move freely in the longitudinal direction of the frame members. Accordingly, we have proposed a louver that is controlled to rotate and slide open in the opposite direction to one of the blade groups, and a louver that is equipped with an opening/closing device consisting of a pinion and a rack mechanism, thereby eliminating the drawbacks of the conventional louver.

(Purpose of the invention) The purpose of this proposal is to provide a louver with the same structure as the louver proposed earlier, but with an opening/closing device of a different structure, thereby enriching the technology.

(Means for Achieving the Objective) In order to achieve the above objective, the present invention proposes that in the louver proposed earlier, two
The interlocking bars of the book are supported movably in the longitudinal direction of the frame, each of the pivot pins of the one blade group is attached to one of the interlocking bars, and each of the pivot pins of the other blade group is attached to the other interlocking bar. A cam rod having a left spiral grooved cam on one end and a right spiral grooved cam on the other end is connected to the frame material that connects the pins and guides the pivot pin of the blade group. The cam rod is supported parallel to the frame material so as to be rotatable from the outside, and a driven member provided on one of the interlocking bars is attached to one grooved cam of the cam rod, and a driven member provided to the other interlocking bar is attached to the other grooved cam. It has a structure in which the provided driven members are engaged with each other so that they can be driven. Examples thereof will be described below with reference to the drawings.

In Figures 1 and 2, a louver frame 1 consisting of upper and lower frame members 2 and 3 and left and right vertical frame members 4 and 5 has a vertical middle shallow 6
. . . are connected in parallel at regular intervals, and blades 7 . They are installed parallel to each other.

First, a structure for attaching the blades 7 to the louver frame 1 will be explained. In the horizontal lower wall 8 of the hollow upper frame material 2 having a substantially rectangular cross section and the horizontal part 9 of the lower frame material 3 having a substantially U-shaped cross section, every other middle frame f... is located every other frame from the right end in Figures 1 and 2. Middle frame fa lined up with...
Inside, the upper part has a length that covers almost the right half of the middle frame fa,
Guide groove 10a extending in the longitudinal direction of the lower frame material...
In the other middle frame fb..., guide grooves 10b... extending in the longitudinal direction of the upper and lower frame members are respectively provided with a length extending approximately to the left half of the middle frame fb, and on the other hand, the first, Pivot pins 11a, 11a, . . . are provided at both upper and lower ends of the right end of each blade group 7a, which is arranged every other blade from the right end of the blades 7 in FIG.
Further, pivot pins 11b, 11b, . . . are provided protruding from the upper and lower ends of each left end of the other blade group 7b, respectively, and the upper and lower pivot pins 1
1a, 11a, ... are the guide grooves 10 of the upper and lower frame materials.
a, 10a, . . . , and the other blade group 7b . . . upper and lower pivot pins 11b, 11b, . and slidably engage with each other through the
For one group of blades 7a..., one end of each link 13a is connected to the middle part of the upper and lower sides of each blade 7a... by a shaft 14, as shown in the second and fifth figures, and the other end of the link is The shaft 15 is placed on the left side of one of the middle frames fa of the horizontal lower wall 3 and the horizontal portion 9 of the upper and lower frame members 2 and 3 and at a position rearward of the guide groove 10a. As a result, the blades 7a... are rotated clockwise in Figures 2 and 5 to slide open, and the other blade group 7b... is connected to the top of each blade. , one end of each link 13b... is connected to the middle part of the lower side by a shaft 14..., and the other end of the link is similarly connected to the right side of the other middle frame fb... from the guide groove 10b... It is connected to the rear position by a shaft 15, so that the blades 7b... rotate counterclockwise in FIGS. 2 and 5 and slide open.

The louver opening and closing positions are as follows. 3rd, 4th
In the figure, a guide groove 16 with a U-shaped cross section extending over the entire length in the longitudinal direction is formed on the inner surface of the outdoor side wall of the upper frame member 2.
a, 16b are formed in parallel in two stages, upper and lower, and interlocking bars 17a, 1 are provided in both guide grooves 16a, 16b, respectively.
7b are slidably fitted and held, and a number of L-shaped support pieces 18a corresponding to the number of blades 7a are attached to one of the interlocking bars 17a, and a number of L-shaped support pieces 18a are attached to one of the intermediate frames fa...
At the same time, each support piece 18a is fixed at equal intervals.
. . . through which the pivot pins 11 a at the upper ends of the one blade 7 a . ...... in the other middle frame fb above...
... and fixed at equal intervals, and each support piece 18
The pivot pins 11b at the upper ends of the other blades 7b are supported through the blades b.

In this example, the fourth
As shown in the figure, brackets 19, 19 are fixed to the right end portion at appropriate intervals in the longitudinal direction of the upper frame member, and a left threaded portion 21a is attached to both brackets as a left helical groove cam on the right half of the outer peripheral surface of the rod body. A cam rod 21 consisting of a threaded rod having a right threaded portion 21b as a right spiral groove cam on the left half is attached to the interlocking bars 17a, 17b.
The rightmost support piece 18a, 18b of the support pieces 18a..., 18b... is supported on the cam rod 20 as shown in the fourth figure. Nut cases 22a and 22b which are rotatably fitted are provided respectively in a protruding manner, and a nut 23a is screwed into the nut case 22a, and the other threaded part 21b is used as a driven member. The nuts 23b to be screwed together are housed in the nut case 22b in a non-rotatable manner, and the cam rod 2
A ball chain foil 24 is fixed to the middle part of 1,
An endless ball chain 25 hung on the foil 24 is suspended downward from the lower surface of the upper frame member 2 through a guide 26.

The opening and closing action of this louver will be explained next. Fourth,
In Figure 5, each blade 7 is in a completely open state at right angles to the louver frame.From this state, when one side of the ball chain 25 is pulled and the cam rod 20 is rotated in the direction of the arrow in Figure 4, Left threaded part 21 of cam rod
The nut 23a that is screwed into the right-hand threaded portion 21b moves to the right in FIG.
7a moves to the right, and the other interlocking bar 17b moves to the left, and each pivot pin of one of the blades 7a is supported by one of the interlocking bars 17a via a support piece 18a. 11a... to the right in FIGS. 4 and 5, and the support piece 18b... to the other interlocking bar 17b.
The pivot pins 11b of the other blade 7b, which are supported via the..., are moved to the left in FIGS. 4 and 5 along the guide grooves 10a, 10b, respectively, thereby The blades 7a... are rotated counterclockwise in FIG. 5 and the other blades 7b are rotated clockwise and slid closed.

When the other side of the ball chain 25 is pulled and the threaded rod 20 is rotated in the opposite direction, each part operates in the opposite direction to that described above, and one blade 7a...
The other blade 7b is rotated clockwise in the figure and counterclockwise to slide it open.

Another embodiment shown in FIG. 6 uses a cam rod 120 having a left spiral grooved cam 121a on the right half of the outer peripheral surface of the rod body and a right spiral grooved cam 121b on the left half, and the cam A driven pin 123a protrudingly provided as a driven member from one support plate 118a on one grooved cam 121a of the rod, and a driven pin 123b protrudingly provided as a driven member from the other support plate 118b on the other grooved cam 121b. This is an example in which the other structures are substantially the same as those in the above example.

The blade mounting structure of the present invention is not limited to the above example. Looking at one blade 207a as shown in FIG. A grooved guide plate 213a to be controlled may also be fixed to the upper and lower frame members.

(Effect of the invention) According to the louver equipped with the opening/closing device of this invention, by rotating the cam rod from the outside, one blade group and the other blade group are rotated in opposite directions to slide open and close. It is possible to do this reliably and to enrich the technology.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention; Fig. 1 is a front view of the louver in a closed state, Fig. 2 is a schematic horizontal sectional view of the louver in Fig. 1 in a half-open state, and Fig. 3 is a complete view of the louver in Fig. 1. An enlarged sectional view of the open state with the - line partially omitted; FIG. 4 is a partially sectional view of the - line of FIG. 3;
5 is a partial sectional view taken along the line - - in FIG. 3, FIG. 6 is a partially omitted sectional view taken along the same section as FIG. 5 of another embodiment, and FIG. 7 is a partially omitted sectional view of another example of the blade mounting structure. 5 is a partially omitted sectional view taken along the same section as FIG. 5. FIG. 1... Louver frame, 2, 102, 202... Upper frame material, 3... Lower frame material, 7a, 7b, 107a, 1
07b, 207a... Feather, 10a, 10b, 1
10a, 110b, 210a... guide groove, 11
a, 11b, 111a, 111b, 211a...
Pivot pin, 13a, 13b... link, 213a
...Guide plate, 17a, 17b, 117a, 11
7b...Interlocking bar, 20,120...Cam bar, 2
1a...Left threaded part, 21b...Right threaded part, 121
a...Left spiral groove cam, 121b...Right spiral groove cam, 23a, 23b...Nut, 123
a, 123b...driven pin.

Claims (1)

[Claims for Utility Model Registration] In a large number of blades arranged in parallel to each other within a louver frame consisting of upper and lower frame members and left and right vertical frame members, every other group of blades is The pivot pins at both ends of each side are guided by the opposing frame members of the louver frame so that they can move freely in the longitudinal direction of the frame members, and as the pivot pins move, they can rotate and slide open in a certain direction. The other blade group, which is every other blade, is guided by the pivot pins at both ends of each other side to the frame members so as to be movable in the longitudinal direction of the frame members, and the movement of the pivot pins is controlled. In the louver, which is controlled to open freely and should be rotated in the opposite direction to the one of the blade groups, a frame member that guides the pivot pin of the blade group has two
The interlocking lever of the book is supported so as to be movable in the longitudinal direction of the frame member, and each pivot pin of the one blade group is attached to one of the interlocking bars, and each pivot pin of the other blade group is attached to the other interlocking bar. A cam rod having a left spiral grooved cam on one end and a right spiral grooved cam on the other end is connected to the frame material that connects the pins and guides the pivot pin of the blade group. The cam rod is rotatably supported from the outside parallel to the frame material, and a driven member provided on one of the interlocking bars is provided on one grooved cam of the cam rod, and a driven member is provided on the other interlocking bar on the other grooved cam. A louver equipped with an opening/closing device in which driven members are each movably engaged.