JP3341467B2 - Blind shutter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blind shutter provided at an opening of a building such as a window or an entrance.

[0002]

2. Description of the Related Art In general, a blind shutter is extended from an upper portion of an opening of a building when the opening is closed, and is housed at an upper portion of the opening when the opening of the building is opened. It has a slat. And in this kind of blind shutter, in the middle of the closing process of the opening portion, the blade plate is rotated almost horizontally for lighting,
First, Japanese Patent Application Nos. 5-180799 and 6-1122.
No. 10 proposed. With these proposed blind shutters, substantially satisfactory results can be obtained for rotating the blades for daylighting.

[0003]

However, in the blind type shutter proposed above, since the shutter itself does not have a lock mechanism in the closed state, the entire blade can be easily pushed up by pushing up the lower blade plate by hand or the like. Can have security problems. For this reason, in the blind type shutter proposed above, it is necessary to lock with a key or the like at the time of closing, but there is a problem with careless forgetting to lock the key. In addition, with the proposed blind shutter, the blades can be easily individually rotated by hand or the like in the closed state, and it is difficult to sufficiently exhibit the shutter function of blindfolding the inside of the building.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has as its object to provide a lock function in a closed state, so that the entire shutter cannot be easily pushed up, It is another object of the present invention to provide a blind shutter capable of preventing the rotation of each blade plate.

[0005]

SUMMARY OF THE INVENTION According to the present invention, there is provided an object wherein a plurality of blades arranged in parallel with each other and a plurality of link members are rotatably connected to each other in series via a shaft. A first link row in which a blade plate is attached to the shaft, a moving means for moving the first link row so as to successively feed out the blade plates and pull up the drawn out blade plates one after another, An opening / closing mechanism that opens and closes the fed blade plate and a blocking unit that prevents lifting of the fed blade plate are provided, and the opening / closing mechanism is juxtaposed in the first link row, and includes a plurality of link members. A second link row that is rotatably connected to each other in series via a shaft, and a connection mechanism that connects a shaft of the second link row to a corresponding shaft of the first link row. The blocking means, in the closed state, the second link And it is arranged to abut,
This is achieved by a blind shutter including a side wall of a vertical frame for accommodating a link row fed out together with the blades, and an arrangement means for arranging the axis of the first link row in a vertical direction in the vertical frame. You.

In the present invention, when the extended blade is lifted, the blade is positioned above the blade so that the lifting force causes a turning force in the closing direction to be generated by the coupling mechanism. The axes of the first and second link rows may be arranged.

[0007]

In the blind shutter according to the present invention, when the moving means is operated, the first link row is sequentially extended. Due to this extension of the first link row, a plurality of slats arranged in parallel to each other and connected to and supported by the first link row are also sequentially extended, whereby the openings of the building begin to be sequentially closed. During the closing operation, the opening and closing mechanism is operated to open and rotate the blade plate so that it can receive light. If the extended wing plate is lifted by hand due to mischief etc. after completely closing the opening of the building, the second link row is in contact with the vertical frame side wall of the blocking means, so the second link The rows of link members act like struts in the vertical frame, thereby preventing the lifting of the slats.

Next, the present invention will be described in more detail with reference to a preferred embodiment shown in the drawings. The present invention is not limited to these specific examples.

[0009]

1 to 7, a blind type shutter 1 according to this embodiment includes a plurality of blades 2 arranged in parallel with each other.
A first link row 3 for connecting and supporting each of the blades 2, a storage device 4 for storing the blades 2 connected and supported by the link row 3, and the blades 2 are sequentially fed out of the storage device 4, A moving means 5 for moving the link row 3 so as to successively pull up the extended blade plates 2 and accommodate them in the accommodation device 4
And an opening / closing mechanism 6 for opening and closing the extended blade plate 2, and a blocking means 7 for preventing lifting of the extended blade plate 2.

As shown in detail in FIG. 3 and FIG. 4, each blade plate 2 includes an outwardly protruding portion 11 and an inwardly protruding portion 12. Is
A pair of holding grooves 13 and 14 and a ridge 15 are formed along the entire length in the longitudinal direction, and a groove 17 in which a seal 16 is fitted is formed at the lower end of the convex portion 11. It is formed along the entire length in the longitudinal direction.

The link row 3 includes shafts 21 and 2 serving as connecting portions.
And a plurality of link members 23 rotatably connected to each other in series via the second link member 23. The tip of every other link member 23 abuts on the adjacent link member 23, so that each other is bent more than necessary. Is formed integrally, and rollers 25 are rotatably provided on shafts 21 provided alternately at the connecting portions of the link row 3. The link row 3 is provided at both ends 26 and 27 of the slat 2.
Although each is provided on the side, only one end 26 will be described below.

The housing device 4 includes a housing 33 mounted above a pair of vertical frames 31 and 32 of the blind shutter 1, a guide rail 35 mounted on a side wall 34 of the housing 33, and a front end of the guide rail 35. As shown in detail in FIG. 6, the guide rail 35 includes an upper rail portion 38 having a downwardly projecting ridge 37 and an upwardly projecting ridge 39.
The guide piece 36 having the forked portion 41 is press-fitted into a space 43 formed on the lower surface of the lower rail portion 40 so that the guide piece 36 has It is attached to the tip.

The moving means 5 includes a wheel 52 rotatably mounted on a housing 33 via a shaft 51, and a driving device 53 for rotating the wheel 52 forward and backward. 54 is provided with a tooth groove 55 that engages with the roller 25 provided in the link row 3. The driving device 53 includes a gear 56 fixed to a side surface of the wheel 52, an electric motor 57 mounted on the housing 33, a gear 58 mounted on an output rotation shaft of the electric motor 57, and a gear 56 and 58. And the endless chain 59 passed.

The opening / closing mechanism 6 is juxtaposed in the link row 3, and a second link row 64 in which a number of link members 61 are rotatably connected in series to each other via shafts 62 and 63 as connecting portions. A connecting mechanism 65 for connecting the shaft 63 of the link row 64 to the corresponding shaft 21 of the link row 3, and a tilt having one end 66 fixed to one of the connecting mechanisms 65 and having an engaging portion 68 at the other end 67. Arm 69 and outer peripheral surface 54 of wheel 52
And a guide member 71 having a guide surface 70 for pivotally guiding the tilt arm 69 when the engaging portion 68 of the other end 67 of the tilt arm 69 comes into contact with the guide member 71. The coupling mechanism 65 includes a shaft 81 having one end formed with the shaft 21 and an arm 82 having one end integrally fixed to the shaft 81 and the other end to which the shaft 63 is attached. The tilt arm 69 is provided such that one end 66 thereof is fixed to the shaft 81 in one of such connection mechanisms 65. The guide member 71 includes a guide rail 121 described later.
Together with the side wall 34 of the housing 33. Introductory bent portions 85 and 86 are provided at both ends of the guide member 71.
Are formed respectively. Every other link member 61
A blocking piece 87 that abuts on the adjacent link member 61 to prevent mutual bending beyond necessity is integrally formed at the tip of. The engaging portion 68 is connected to the other end 6 of the tilt arm 69.
7 comprises a roller 89 (see FIG. 8).

The end 26 of each blade 2 of the present embodiment is
1 and is fixed to the coupling mechanism 65 through the
Each blade 2 is connected to the link row 3 via the connection mechanism 65. The holding tool 91 includes a plate body 94 integrally having a shaft portion 92 at one end and a groove 93 on one surface,
A pressing body 97 having step projections 95 and 96 at both edges is provided.
Are provided on the back surface of the convex portion 11, and the step projections 95 and 96 are fitted into the holding grooves 13 and 14, respectively, so that the pressing body 97 The body 94 is arranged to be pressed against the rear surface of the convex portion 11. The shaft 92 of the plate 94 is fixed to the shaft 81, and the end 26 of each blade 2 is fixed to the connecting mechanism 65 via the holder 91.

The blocking means 7 is arranged so that one end 101 (see FIG. 13) of the link member 61 of the link row 64 is in contact with the link row 64 in the closed state. Side wall 102 of vertical frame 31 to be accommodated
And an arrangement means 110 for arranging the shafts 21 in a row in the vertical direction within the vertical frame 31 as shown in detail in FIG. The arranging means 110 includes a rail 111 integrally formed on the inner surface of the vertical frame 31 so as to surround the roller 25 rotatably attached to the shaft 21.
11 has opposed ridges 113 and 114 arranged on the small diameter portion 112 of the roller 25. The same side walls and arrangement means are provided in the vertical frame 32.

As shown in FIG. 7, in this embodiment, a seat plate fixing member 115 is rotatably attached to a link member 61 at the lowermost end of the link row 64 via a pin 116. A seat plate 118 is attached to the plate fixing bracket 115 with a screw 117, and a side surface thereof has
Similarly to the roller 25, rollers 119 and 120 which are arranged so as to be surrounded by the rail 111 are rotatably mounted. The seat plate 118 has one vertical frame 3 like the blade plate 2.
It extends horizontally from 1 to the other vertical frame 32. Further, in the blind shutter 1 of the present example, the guide rail 121 is provided on the housing 33 along the outer peripheral surface 54 of the wheel 52. Row 5 wheel 5
2 is guided in a predetermined manner around the outer peripheral surface 54. In addition,
In this example, the upstream side of the tilt arm 69 (the storage device 4
Although the link row 64 is also formed on the (side), the link row 64 may be formed only on the downstream side of the tilt arm 69 instead. Further, the seat plate 118 and the like may be omitted, and the blade plate 2 may be provided to the lowermost end.

In the blind shutter 1 formed as described above, when the motor 57 is operated to rotate the wheel 52 in the direction A through the gear 58, the chain 59 and the gear 56, the outer peripheral portion of the wheel 52 54 is a forked part 4
1, the link row 3 housed in the housing device 4 is pulled out of the housing device 4 by the engagement of each tooth groove 55 of the wheel 52 with the roller 25 of each shaft 21. As a result, the blades 2 attached to the link row 3 are also paid out. Before the wing plate 2 is extended, the seat plate 118 is disposed on the upper ends of the vertical frames 31 and 32. The extension of the link row 3 in the housing 33 is guided by the contact between the roller 25 and the guide rail 121. When the blade 2 is extended in this manner, the link row 3 descends in the vertical frame 31, and the link row 3 In the descent of
The rollers 25 are guided by rails 111, and the shafts 21 having the rollers 25 are arranged in a line on one vertical line. It should be noted that the link row 64 is also paid out when the link row 3 is paid out. When the link row 3 descends, the housing 33 and the vertical frame 31,
The openings 150 surrounded by 32 are sequentially closed by the blades 2. Immediately before the complete closing, the tilt arm 69 is extended as shown in FIG.
As shown in FIG.
Is rotated in the B direction about the shaft 81, the shaft 81 to which the tilt arm 69 is fixed is also rotated in the B direction,
With the rotation of the shaft body 81 in the B direction, the arm 82 is rotated,
The link row 64 connected to the arm 82 via the shaft 63 is pulled relatively to the link row 3, so that the link members 61 downstream of the tilt arm 69 are also pulled, and these link members 61 are pulled. As a result, the arm 82 connected via the shaft 63 is also rotated. As a result, the blade plate 2 downstream of the tilt arm 69 is horizontally rotated and opened so as to be able to receive light as shown in FIG. Is done. Further, the wheel 92 is rotated in the direction A, and the roller 89 reaches the leading bent portion 85 as shown in FIG.
The rotation in the direction is released, and the relative pulling of the link row 64 with respect to the link row 3 via the shaft 63 and the arm 82 is released, so that the blade plate 2 is moved as shown in FIG.
The opening 150 is closed by the wing plate 2 by being vertically rotated and closed, and at the same time, the seal 16 of the seat plate 118 comes into contact with the lower frame 171. Thus, the tilt arm 69
Before closing the opening 150, the blades 2 are provided at predetermined positions of the link row 3 so as to be opened once. After the closing, the link row 3 and the link row 64 are further extended slightly as shown in FIG. 13 until one end 101 of the link member 61 comes into contact with the side wall 102, and the extension is stopped there. Is completely closed.

After the wheel is completely closed, when the wheel 52 is rotated in the direction D, which is the direction opposite to the direction A, by the operation of the electric motor 57, the link row 3 is pulled up, and the operation reverse to the above is sequentially performed. Then, the small-diameter portion 112 is located between the protruding portions 37 and 39, the roller 25 is inserted between the upper rail portion 38 and the lower rail portion 40, and the link rows 3 and 64 are stored in the storage device 4, and the blades As a result, the opening 150 is opened.

By the way, in the blind shutter 1 of this embodiment, in the state shown in FIG.
One end 101 of the link member 61 is not
02, the link member 61 serves as a strut member against the force F in the lifting direction and functions to resist lifting of the seat plate 118 or the wing plate 2, and the closed state is maintained. You. Moreover, in this example, the shafts 21 and 63 of the two link rows 3 and 64 connected by each connection mechanism 65 are provided.
When lifting the seat plate 118 or the wing plate 2 in the closed state, the wing plate 2 positioned above the seat plate 118 or the wing plate 2 is turned in the closing direction R due to the lifting force F. It is arranged to generate power. That is, the axis E of the shaft 62 and the shaft 6 caused by the lifting force F
The shafts 21 connected by the connection mechanisms 65 such that the force F1 in the direction connecting the shaft center G of the shaft 3 to the blade 21 generates a rotational moment in the R direction about the axis H of the shaft 21. And 63 are arranged, the forcible lifting of the seat plate 118 or the slat plate 2 does not cause the slat plate 2 to open, and further, in the closed state shown in FIG.
, The turning moment in the R direction is always applied, so that the blade 2 does not vibrate (flutter) due to strong wind. In addition, one end 101 of the link member 61 is
Since the load of the link rows 3 and 64 etc. is received here by abutting on the link 2, the load applied to the upper link rows 3 and 64 etc. can be reduced.

When the shutter is closed, for example, an abnormal load detector 172 for detecting that a person or the like is caught between the lowermost blade 2 and the lower frame 171 may be mounted above the vertical frame 31. Good. The abnormal load detector 172 can be constituted by an operation piece operated by bending of the link row 3 and a limit switch operated by rotation of the operation piece.

[0023]

As described above, according to the present invention, a lock function is provided in the closed state, and the blade cannot be easily pushed up. In addition, in the closed state, the rotation of each blade is prevented. It is excellent in crime prevention effect and can eliminate unpleasant noise.

[Brief description of the drawings]

FIG. 1 is an explanatory sectional view of a preferred embodiment of the present invention.

FIG. 2 is a perspective view of the specific example shown in FIG.

FIG. 3 is a detailed view of a blade plate and the like of the specific example shown in FIG.

FIG. 4 is a cross-sectional view taken along line IV-IV of the blade plate or the like shown in FIG. 3;

FIG. 5 is a partial cross-sectional view of a vertical frame and the like of the specific example shown in FIG. 1;

FIG. 6 is an exploded view of a part of the inside of the housing of the specific example shown in FIG. 1;

7 is an explanatory diagram of a link row in a vertical frame of the specific example shown in FIG. 1;

FIG. 8 is an operation explanatory diagram of the specific example shown in FIG. 1;

FIG. 9 is an operation explanatory diagram of the specific example shown in FIG. 1;

FIG. 10 is an operation explanatory diagram of a link row in a vertical frame in the operation shown in FIG. 9;

FIG. 11 is an operation explanatory diagram of the specific example shown in FIG. 1;

FIG. 12 is an operation explanatory diagram of a link row in a vertical frame in the operation shown in FIG. 11;

FIG. 13 is an explanatory diagram of a link row in a closed vertical frame in the specific example shown in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Blind shutter 2 Blade plate 3 First link row 4 Storage device 5 Moving means 6 Opening / closing mechanism 7 Inhibiting means

Claims (2)

(57) [Claims] A plurality of blades arranged in parallel with each other and a plurality of link members are rotatably connected to each other in series via a shaft, and the blade is attached to the shaft. One link row, a moving means for moving the first link row so as to sequentially pull out the slats and pull up the fed slats one after another, an opening / closing mechanism for opening and closing the fed slats, Blocking means for preventing the lifted blade plate from being lifted, and the opening / closing mechanism is juxtaposed to the first link row, and the plurality of link members are rotatably connected to each other in series via a shaft. A second link row, and a connecting mechanism for connecting the axis of the second link row to a corresponding axis of the first link row.
In the closed state, the second link row is arranged to be in contact with the second link row, and the side wall of the vertical frame that accommodates the link row fed out together with the blades, and the axis of the first link row is suspended in the vertical frame in the vertical direction. And a arranging means for arranging them in a line. 2. A lifting mechanism, comprising: a connecting mechanism connected to a blade located above the blade so as to generate a turning force in a closing direction due to the lifting force when lifting the fed blade; The blind shutter according to claim 1, wherein the shafts of the first and second link rows are arranged.