JP3341525B2 - Blind equipment - 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 device arranged in an opening such as a window of a building and used for opening and closing the opening.

[0002]

2. Description of the Related Art In this type of blind device, generally,
An electric motor is arranged above the opening, connected to the output rotation shaft of the electric motor and provided with a rotation shaft bridging the left and right vertical frames, and a sprocket wheel is attached to both ends of the rotation shaft, A chain is wrapped around each sprocket wheel, and a link mechanism that supports each end of a large number of slats is connected to the chain. When the rotation shaft is rotated by the operation of a drive mechanism such as an electric motor, each sprocket is rotated. The wheel is rotated and the chain is run, and the running of the chain raises and lowers a number of slats via the link mechanism, thus opening openings such as windows of the building,
It is designed to close. In such a conventional blind device, when opening the opening, a large number of slats are successively densely overlapped from below and raised, and finally all the slats are overlapped tightly and arranged as a slat bundle above the opening. are doing. In addition, a tilt mechanism is generally added, and by this tilt mechanism, a large number of slats are swung once to form a blind just before the opening such as a window of a building is completely closed.

[0003]

However, in the above blind device, an electric motor is arranged above the opening and a rotating shaft is provided to bridge the left and right vertical frames.
The height is increased by the installation space for the electric motor and the rotating shaft, and it is difficult to install the eaves, balconies, etc. on windows of buildings with a limited installation space above. Further, since the tilt arm of the tilt mechanism is fixedly arranged so as to be swingable above the opening, when the opening is opened, the slat bundle is not disposed above the upper edge of the opening, and The upper part will be partially closed. If the upper part of the opening is partially closed by the slat bundle when the opening is opened as described above, a sufficient feeling of release cannot be enjoyed, which is annoying. Further, since the slat bundle is exposed, there is an inconvenience that dust and the like tend to accumulate on each slat and cleaning must be performed frequently.

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to reduce or eliminate the degree to which the upper part of the opening is partially closed by the slat bundle when the opening is opened. It is possible to provide a blind device that can fully enjoy the feeling of complete opening of the opening and can reduce the number of exposed slats, thereby reducing the time required for cleaning the slats. .

Another object of the present invention is to provide a blind device which can be installed even when the mounting space is narrow.

[0006]

According to the present invention, the object is to provide a first link mechanism, a second link mechanism juxtaposed with the first link mechanism, and one end of the first link mechanism. A plurality of slat support mechanisms each having the other end rotatably connected to the second link mechanism; slats supported by each of the slat support mechanisms; and a slat supported by each of the first and second link mechanisms. An upper end is rotatably connected, and has a tilt arm slidably and vertically movable, and an engaging portion engageable with an engaged portion of the tilt arm to be rotatable. A swing mechanism for swinging the tilt arm by being rotated during engagement of the engagement portion with the engaged portion of the tilt arm, and a lower portion of the first and second link mechanisms Connected to the first and second link mechanisms The link folding and extension mechanism to be extended, and the operation of the link folding and extension mechanism is transmitted to the swing mechanism to rotate the swing mechanism when the first and second link mechanisms are extended by the link folding and extension mechanism. The first and second link mechanisms are folded, the engaged portion of the tilt arm is disengaged from the engaging portion of the swing mechanism, and the tilt arm is moved upward. Achieved by a blind device adapted to be moved to

In a preferred embodiment of the blind apparatus, the first link mechanism includes a plurality of first link members rotatably connected to each other in series, and the second link mechanism includes A plurality of second link members rotatably connected to each other, and one end of the slat support mechanism is provided at every other rotatable connection portion of the first link member. The other end of the slat support mechanism is rotatably connected to every other connecting portion at the mutually rotatable connecting portions of the second link member. .

According to the present invention, the tilt arm is provided with a projection disposed in a guide passage formed in the vertical frame of the blind device so as to guide the upward movement of the tilt arm, and the tilt arm is formed around the projection. The arm may be configured to be swingable, and the engaged portion of the tilt arm is formed by a protrusion, and the engaging portion of the swing mechanism is formed by a protrusion as the engaged portion of the tilt arm. It may be formed by a cam groove to be fitted.

In another preferred embodiment of the present invention, the swinging mechanism includes a rotating body rotatably supported on a vertical frame of the blind device, and the rotating body includes a rotating member which is engaged with an engaged portion of the tilt arm. An engaging portion for engaging is formed, and the link folding and extending mechanism includes a shaft rotatably supported by the vertical frame, a first rotating body fixed to the shaft, and a first rotating body. A chain or belt connected to the lower part of the first and second link mechanisms, and a rotation drive mechanism for rotating the first rotating body, wherein the rotation drive mechanism is located outside the side wall of the vertical frame. An electric motor, a second rotating body attached to an output rotating shaft of the electric motor, a third rotating body fixed to a shaft rotatably supported on a vertical frame, and a second rotating body. A chain or belt suspended between the rotating body and the third rotating body. And has an output rotary shaft of the electric motor is arranged to move out of the path of upward tilt arm. Note that a swinging mechanism may be configured by including a rotating body rotatably supported by the vertical frame of the blind device, and the rotating body and the first rotating body may be coaxially arranged.

One example of the clutch mechanism includes a pawl member rotatably mounted on the swing mechanism, an engaging pin mounted on a vertical frame so that the pawl member is engaged, and an abutting contact with the pawl member. And an engagement projection provided on a link folding and extending mechanism so as to release the engagement of the claw member with the engagement pin.

[0011]

In the blind device according to the present invention, when the link folding and extension mechanism is operated in a state where the first and second link mechanisms are extended, the link folding and extension mechanism is connected at the lower portion with the first link mechanism. And the second link mechanism starts to be folded, and by this folding, the slats attached to the first and second link mechanisms via the slat support mechanism are sequentially overlapped from below. When the first and second link mechanisms are all folded and the slats are all overlapped, the engaged portion of the tilt arm is disengaged from the engaging portion of the swing mechanism, and the tilt arm starts to move upward, At the same time, the slat bundle in which all the slats are superimposed is further raised, and at least most of the slat bundle is disposed above the upper edge of the opening of the building or the like. With the first and second link mechanisms fully folded, when the link folding and extension mechanism is operated in reverse, the fully folded first and second link mechanisms and the slat bundle begin to descend. By this lowering, the engaged portion of the tilt arm is engaged with the engaging portion of the swing mechanism, whereby the first and second link mechanisms start to extend from above, and the slat bundle is moved from the upper slat by The superposition starts to be released. When the first and second link mechanisms are all extended and the slats are also completely disengaged, the link is folded by the operation of the clutch mechanism, and the operation of the extension mechanism is transmitted to the swing mechanism, whereby the swing is performed. The mechanism is rotated, and the tilt arm is swung. The swing of the tilt arm causes relative displacement between the first and second link mechanisms, and causes the first and second link mechanisms via the slat support mechanism. The attached slats are tilted and temporarily made into a blind, and the opening is completely closed by further tilting of the slats once made into the blind.

Next, the present invention will be described in more detail based on preferred embodiments shown in the drawings. The present invention is not limited to these specific examples.

[0013]

1 to 4, a blind device 1 of the present embodiment includes a first link mechanism 2, a second link mechanism 3 juxtaposed to the link mechanism 2, and one end 4 of the blind mechanism 1.
A plurality of slat support mechanisms 7 each having the other end 5 rotatably connected to the link mechanism 3 via a shaft 6, slats 8 supported by each of the slat support mechanisms 7, and link mechanisms 2 and 3. Each upper end 9 and 10 is an axis 11
The tilt arm 12 is rotatably connected to the tilt arm 12 and swingably and vertically movable in the R direction, and is engaged with a projection 13 as an engaged portion of the tilt arm 12. It has a cam groove 14 as a part and is rotatably provided in the vertical frame 15 of the blind device 1 in the R direction, and is turned while the cam groove 14 is engaged with the projection 13 of the tilt arm 12. As a result, a swing mechanism 17 for swinging the tilt arm 12 and a lower part of the link mechanisms 2 and 3 are connected to each other.
Link folding / extending mechanism 18 for folding and extending link mechanisms 2 and 3 and link folding / extending mechanism 18
When the link mechanisms 2 and 3 are extended by the
And a clutch mechanism 19 for transmitting the operation of the link folding / extension mechanism 18 to the swing mechanism 17 so that the projections 13 of the tilt arm 12 swing when the link mechanisms 2 and 3 are folded. The engagement of the mechanism 17 with the cam groove 14 is released, and the tilt arm 12 is moved upward.

The link mechanism 2 has a plurality of first link members 22 rotatably connected to each other in series via shafts 6 and 21 in series.
And a plurality of second link members 24 that are rotatably connected to each other in series via the. The link members 22 and 24 are integrally provided with a locking piece 25 for defining the folding direction.
In order to enable the folding of the link mechanism 2, a long hole 26 is formed at one end of the link member 22 that defines the upper end 9 of the link mechanism 2, and the shaft 11 is inserted into the long hole 26, and The upper end 9 is rotatably connected to the tilt arm 12.

The slat support mechanism 7 has one end 4 pivotally connected to every other connecting portion (shaft 6) at the rotatable connecting portion (shafts 21 and 6) of the link member 22. The other end 5 is rotatably connected to every other connecting portion (shaft 6) at the rotatable connecting portions (shafts 23 and 6) of the link member 24. And a supporting shaft member 33 integrally fixed to substantially the center of the connecting arm 31 and extending laterally through a guide passage 32 formed in the vertical frame 15.
Each slat 8 is fixed to each support shaft member 33.

The tilt arm 12 is connected to the tilt arm 1.
2 is provided with a protrusion 42 with a roller 41 disposed in a guide passage 32 formed in the vertical frame 15 to guide the upward movement of the tilt arm 2. The tilt arm 12 swings in the R direction around the protrusion 42. It is free. The guide passage 32 formed in the vertical frame 15 has a wide guide passage 43 for guiding the roller 41 and a narrow guide passage 4 for guiding the support shaft member 33.
4, the roller 41 is prevented from dropping downward at a boundary 45 between the guide passage 43 and the guide passage 44. When the roller 41 is disposed at the boundary 45, the direction of the tilt arm 12 in the R direction is reduced. Rocking is performed.

The oscillating mechanism 17 includes a rotating body 51 rotatably mounted on a shaft 16 via a bearing (not shown) and rotatably supported by the vertical frame 15. Is formed with a cam groove 14 which is fitted and engaged with the projection 13 of the tilt arm 12.

The link folding / extending mechanism 18 is provided with the vertical frame 1
5, a driving sprocket wheel 55 as a first rotating body fixed to the shaft 16, and a driven member rotatably supported by a shaft 56 fixed to the vertical frame 15. Side sprocket wheel 57 and the sprocket wheels 55 and 57
And an endless chain 59 connected to the lower portions of the link mechanisms 2 and 3 via a connecting member 58 and a lowermost connecting arm 31 in this example, and a sprocket wheel 5.
And a rotation drive mechanism 60 for rotating the rotation mechanism 5. The rotation drive mechanism 60 is fixed to the shaft 16, an electric motor 66 attached to the outer surface 65 of the side wall of the vertical frame 15, a sprocket wheel 68 as a second rotating body attached to the output rotation shaft 67 of the electric motor 66. Sprocket wheel 69 as a third rotating body, and an endless chain 70 bridged between the sprocket wheels 68 and 69.
And the output rotation shaft 67 of the electric motor 66.
Are arranged outside the movement path above the tilt arm 12, in this example, outside the vertical frame 15.
And the rotating body 51 are coaxially arranged. In addition, the vertical frame 15 is integrally provided with regulating walls 75 and 76 for regulating the bending of the chain 59, and a chain pressing member 78 is provided around the sprocket wheels 55 and 57. 59 travels through guideways 81 and 82 formed by the regulating walls 75 and 76,
The chain holding member 78 prevents the chain from coming off, and meshes with the sprocket wheels 55 and 57.

The clutch mechanism 19 includes a pin 9
5, a substantially L-shaped claw member 92 rotatably mounted via the first claw member 1, and a concave portion 94 of a claw portion 93 at one end of the claw member 92 (FIG.
And the other end 96 of the claw member 92 comes into contact with the engagement pin 95 attached to the vertical frame 15 so that the engagement pin 95 engages with the engagement pin 95 to release the engagement with the engagement pin 95. And an engaging projection 97 provided on the chain 59 so that the rotating body 51 can contact the engaging projection 97 with the other end 96 of the claw member 92. A notch 98 is formed.

In the blind device 1, the above-described vertical frames 15 are provided on the left and right sides of the opening of the building, and the above-mentioned mechanism is similarly mounted on the left and right vertical frames 15. The other end of each of the slats 8 (not shown)
Are supported by each of the slat support mechanisms (not shown) as described above. Also, the output rotation shaft 6 of the electric motor 66
7 is extended to the other vertical frame (not shown), and the electric motor 66 synchronizes the link folding and extending mechanism 18 provided on the other vertical frame in the same manner as described above.

In the above-described blind apparatus 1, as shown in FIGS. 1 and 2, when the link mechanisms 2 and 3 are extended, the slats 8 are substantially vertically extended so as to completely close the opening of the building. And as shown in FIG. 5,
The engaging projection 97 is disposed in the notch 98 and abuts on the other end 96 of the claw member 92, and the projection 13 is fitted into the cam groove 14 deeply. When the electric motor 66 is operated in this state, the rotation of the output rotation shaft 67 rotates the shaft 16 via the sprocket wheel 68, the chain 70 and the sprocket wheel 69, and the rotation of the shaft 16 causes the sprocket wheel 55 to rotate. Chain 59 is A
It is driven in the direction. When the chain 59 travels in the direction A, the projection 97 is also moved clockwise about the axis 16, and the movement of the projection 97 also causes the rotating body 51 to rotate clockwise as shown in FIG. With the rotation of the body 51, the tilt arm 12 connected to the rotating body 51 via the protrusion 13 fitted and engaged with the cam groove 14 is also rotated clockwise. As shown in 9,
The link mechanism 2 is lifted relatively upward with respect to the link mechanism 3, and each of the connecting arms 31 is rotated substantially horizontally, whereby each of the slats 8 is also rotated substantially horizontally to form a blind. You. Further, the chain 59 travels in the direction A, and as shown in FIGS.
Is rotated about 180 degrees, the projection 97 starts to come out of the notch 98, and the projection 97 comes out of the notch 98,
Next, the projection 97 comes into contact with the claw portion 93 to rotate the claw member 92 about the pin 91, so that the recess 94 of the claw portion 93 and the engaging pin 95 are fitted and engaged with each other. When the concave portion 94 of the claw portion 93 engages with the engaging pin 95, the rotating body 5
1 is prevented from rotating, and the tilt arm 12 is also held in its swinging state. As the traveling of the chain 59 in the direction A is continued, the link mechanisms 2 and 3 connected to the chain 59 at the lower part start to be folded, and the folding causes the link mechanisms 2 and 3 to be attached to the link mechanisms 2 and 3 via the slat support mechanism 7. The slats 8 are sequentially superimposed from below. When the link mechanisms 2 and 3 are all folded and the slats 8 are all overlapped, the projection 13 of the tilt arm 12 is disengaged from the cam groove 14 of the rotating body 51, and the tilt arm 12 starts to move upward, and with this, The slat bundle in which all the slats 8 are superimposed is further raised, and at least most of the slat bundle is arranged above the upper edge of the opening as shown in FIGS. In this state, the operation of the electric motor 66 is stopped by a signal from a detector or the like, and the state in which the opening is completely opened is maintained.

As shown in FIGS. 10 and 11, when the link mechanisms 2 and 3 are all folded, the electric motor 66 is closed.
Is operated in the opposite direction, the chain 59 travels in the direction B, and the fully folded link mechanisms 2 and 3 and the slat bundle begin to descend, and as a result, the protrusion 13 of the tilt arm 12 moves the cam groove. 14 and thereby
The lowering of the tilt arm 12 is stopped, the link mechanisms 2 and 3 begin to extend from above, and the slat bundle starts to be released from the slats 8 above. When the link mechanisms 2 and 3 are all extended and the slats 8 are also completely disengaged, as shown in FIGS. 8 and 7,
The projection 97 starts to be inserted into the notch 98, and the insertion causes the projection 97 to abut the other end 96 of the claw member 92 and
Is rotated to release the engagement of the recess 94 with the engagement pin 95.
Is rotated counterclockwise, as shown in FIG. 6, and the tilt arm 12 is also rotated counterclockwise, thereby causing relative displacement between the link mechanisms 2 and 3 and causing the link mechanisms 2 and 3 to rotate. The slats 8 attached to the slats 3 via the slat support mechanism 7 are tilted in the opposite direction. After the slats 8 are tilted into one end as shown in FIG. 9, the openings are completely closed as shown in FIGS. Will be closed. Thereafter, the operation of the electric motor 66 is stopped by a signal from a detector or the like, and the state in which the opening is completely closed is maintained.

By the way, in the blind device 1, as described above, when the opening is opened, at least most of the slat bundle is arranged above the upper edge of the opening. The feeling of release can be sufficiently enjoyed, and the number of exposed slats 8 can be reduced. As a result, the time required for cleaning the slats 8 can be reduced. Further, since the electric motor 66 and its output rotary shaft 67 are arranged outside the moving path above the tilt arm 12, the entire height can be reduced and the blind device 1 can be formed. However, it can be installed on windows of limited buildings.

In the blind device 1, the chain 5
9 and 70 and sprocket wheels 55, 57, 6
Although 8 and 69 were used, they could be replaced by belts, preferably toothed belts and pulleys, preferably grooved pulleys which mesh with the toothed belt.

[0025]

As described above, according to the present invention, the degree to which the upper part of the opening is partially closed by the slat bundle when the opening is opened can be reduced or eliminated, and the feeling of complete opening of the opening can be sufficiently obtained. As a result, the number of exposed slats can be reduced, so that the time required for cleaning the slats can be reduced. In addition, since the height of the entire apparatus can be reduced, it is possible to provide a blind apparatus that can be installed even in a window having a limited installation space.

[Brief description of the drawings]

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

FIG. 2 is an explanatory front view of one specific example shown in FIG. 1;

FIG. 3 is an explanatory plan view of a vertical frame of one specific example shown in FIG. 1;

FIG. 4 is a partial side view of the vertical frame shown in FIG. 1;

FIG. 5 is an operation explanatory diagram of one specific example shown in FIG. 1;

6 is an operation explanatory diagram of one specific example shown in FIG. 1;

FIG. 7 is an operation explanatory diagram of one specific example shown in FIG. 1;

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

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

FIG. 10 is an operation explanatory diagram of one specific example shown in FIG. 1;

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

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 blind device 2 first link mechanism 3 second link mechanism 7 slat support mechanism 8 slat 12 tilt arm 13 protrusion 14 cam groove 15 vertical frame 17 swing mechanism 18 link folding / extension mechanism 19 clutch mechanism

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-84192 (JP, A) JP-A-61-36085 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E06B 9/02 E06B 9/06 E06B 9/08 E06B 9/32

Claims (9)

(57) [Claims] 1. A first link mechanism, a second link mechanism juxtaposed with the first link mechanism, and one end rotating to the first link mechanism and the other end rotating to the second link mechanism. A plurality of slat support mechanisms freely connected, slats supported by each of the slat support mechanisms, and upper ends of the first and second link mechanisms are rotatably connected to be swingable. And a tilt arm provided movably up and down, and an engaging portion engageable with an engaged portion of the tilt arm. A swing mechanism that swings the tilt arm by being rotated during engagement of the engagement portion with the
A link folding and extension mechanism connected to a lower portion of the first and second link mechanisms to fold and extend the first and second link mechanisms, and first and second link mechanisms by the link folding and extension mechanism And a clutch mechanism for transmitting the operation of the extension mechanism to the swing mechanism in order to rotate the swing mechanism at the time of extension of the first arm and the second arm. A blind device wherein the engagement of the engaged portion with the engagement portion of the swing mechanism is released, and the tilt arm is moved upward. 2. The first link mechanism includes a plurality of first link members rotatably connected in series to each other, and the second link mechanism rotatably connects to each other in series. One end of the slat support mechanism is rotatably connected to every other connecting part at the mutually rotatable connecting part of the first link member. 2. The blind according to claim 1, wherein the other end of the slat support mechanism is rotatably connected to every other connecting portion at a rotatable connecting portion of the second link member. 3. apparatus. 3. The tilt arm has a projection arranged in a guide passage formed in a vertical frame of the blind device for guiding the upward movement of the tilt arm, and the tilt arm is centered on the projection. The blind device according to claim 1, wherein the blind device is swingable. 4. The engaged portion of the tilt arm is a projection,
The blind device according to any one of claims 1 to 3, wherein the engagement portion of the swing mechanism is a cam groove into which a projection as an engaged portion of the tilt arm fits. 5. The swing mechanism includes a rotating body rotatably supported by a vertical frame of a blind device, and the rotating body includes an engaging portion that engages with an engaged portion of the tilt arm. The blind device according to claim 1, wherein the blind device is formed. 6. The link folding / extending mechanism includes a shaft rotatably supported by a vertical frame of a blind device, a first rotating body fixed to the shaft, and a mechanism hung on the first rotating body. The chain according to any one of claims 1 to 5, further comprising a chain or a belt connected to a lower portion of the first and second link mechanisms, and a rotation drive mechanism for rotating the first rotating body. Blind equipment. 7. A rotary drive mechanism is fixed to an electric motor, a second rotating body attached to an output rotary shaft of the electric motor, and the shaft rotatably supported by a vertical frame of a blind device. A third rotating body, and a chain or a belt bridged between the second rotating body and the third rotating body, and the output rotating shaft of the electric motor is positioned above the tilt arm. The blind apparatus according to claim 6, wherein the blind apparatus is disposed outside the moving path. 8. The swing mechanism includes a rotating body rotatably supported by a vertical frame of the blind device, and the rotating body and the first rotating body are coaxially arranged. Item 7. A blind device according to item 6. 9. A clutch mechanism comprising: a pawl member rotatably mounted on a swing mechanism; an engaging pin mounted on a vertical frame of a blind device such that the pawl member is engaged; The blind according to any one of claims 1 to 8, further comprising: an engagement projection provided on a link folding / extension mechanism so as to come into contact with the engagement pin to release the engagement with the engagement pin. apparatus.