EP1418307A1 - Blind apparatus - Google Patents
Blind apparatus Download PDFInfo
- Publication number
- EP1418307A1 EP1418307A1 EP20030021681 EP03021681A EP1418307A1 EP 1418307 A1 EP1418307 A1 EP 1418307A1 EP 20030021681 EP20030021681 EP 20030021681 EP 03021681 A EP03021681 A EP 03021681A EP 1418307 A1 EP1418307 A1 EP 1418307A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- belt
- slat supporting
- members
- end portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/02—Special arrangements or measures in connection with doors or windows for providing ventilation, e.g. through double windows; Arrangement of ventilation roses
- E06B7/08—Louvre doors, windows or grilles
- E06B7/084—Louvre doors, windows or grilles with rotatable lamellae
- E06B7/086—Louvre doors, windows or grilles with rotatable lamellae interconnected for concurrent movement
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
- E06B9/06—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
- E06B9/0607—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position
- E06B9/0615—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position characterised by the closing elements
- E06B9/0638—Slats or panels
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/02—Shutters, movable grilles, or other safety closing devices, e.g. against burglary
- E06B9/06—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type
- E06B9/0607—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position
- E06B9/0646—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position characterised by the relative arrangement of the closing elements in the stored position
- E06B9/0676—Shutters, movable grilles, or other safety closing devices, e.g. against burglary collapsible or foldable, e.g. of the bellows or lazy-tongs type comprising a plurality of similar rigid closing elements movable to a storage position characterised by the relative arrangement of the closing elements in the stored position stored in a stacked configuration
Definitions
- the present invention relates to a blind apparatus disposed in an opening such as a window of a building to open or close the opening.
- the aforementioned blind apparatus is comprised of a pair of link mechanisms; a plurality of slat supporting members each having one end portion connected to one of the link mechanisms and the other end portion connected to the other link mechanism; slats respectively supported by the slat supporting members; a raising and lowering mechanism for raising and lowering the slats; and a tilting mechanism for tilting the slats by causing the pair of link mechanisms to undergo relative positional changes as the slats are raised or lowered by the raising and lowering mechanism.
- Each of the slat supporting mechanisms has an arm portion for supporting an end portion of the slat at a substantially central portion of the arm portion.
- each of the link mechanisms is formed by linking the plate-shaped rigid link members in a chain form by means of the shafts, substantial time is required for the assembly of the link mechanisms, and a large force is required for raising and lowering the slats due to the weight of the link members.
- the present invention has been devised in view of the above-described aspects, and its object is to provide a blind apparatus which makes it possible to effect assembly and maintenance simply in a short time, does not require a very large force for raising and lowering the slats, makes it possible to effect daylighting without being hampered by the slats in the completely open state of the opening, and makes it possible to sufficiently obtain a sense of openness when the opening is open.
- a blind apparatus comprising: a first link mechanism and a second link mechanism juxtaposed to each other; a plurality of slat supporting members each having one end portion connected to the first link mechanism and another end portion connected to the second link mechanism; a plurality of slats respectively supported by the slat supporting members; a raising and lowering mechanism for raising and lowering the slats by means of an uppermost one of the slat supporting members; a tilting mechanism for tilting the slats by causing the first and the second link mechanisms to undergo relative positional changes as the slats are raised or lowered by the raising and lowering mechanism; and inhibiting means for inhibiting the raising of a lowermost one of the slats, each of the first and the second link mechanisms having a flexible belt-shaped body and a plurality of shaft members which are secured to the belt-shaped body at fixed intervals and are connected to each other by the belt-shaped body, the shaft member
- the raising and lowering mechanism is adapted to raise and lower the slats by means of the uppermost slat supporting member, a stack of slats can be disposed in the lower portion of the opening when the opening is completely open. Consequently, when the opening is completely open, daylighting can be provided without being hampered by the slats, and a sense of openness can be sufficiently obtained.
- the first and second link mechanisms are respectively comprised of the flexible belt-shaped bodies and the shaft members which are secured to the belt-shaped bodies at fixed intervals and which are connected to each other by the belt-shaped bodies, the assembly and maintenance of the first and second link mechanisms are made simple. Furthermore, as the belt-shaped bodies and the plurality of shaft members are fabricated from a synthetic resin or the like, it is possible to attain light weight, so that not a very large force is required for the raising and lowering of the slats.
- the blind apparatus according to the first aspect of the invention further comprises:
- the blind apparatus according to the first or the second aspect of the invention further comprises: a closing plate for closing a gap occurring below the lowermost one of the slat supporting members.
- the gap occurring the lowermost slat can be closed by the closing plate.
- the entry or the like of rainwater through this gap can be prevented, and a completely closed state of the opening can be fully ensured.
- each of the slat supporting member is preferably comprised of: a first support including a first arm portion having a pair of shaft holes which are respectively provided in one end portion and another end portion thereof, and in which one end portions of the shaft members of the link mechanisms are respectively inserted and secured rotatably, a shaft portion formed integrally on one surface of the first arm portion, and a fitting projection formed integrally with the shaft portion and adapted to be fitted in the fitting portion of the slat; and a second support including a second arm portion having a pair of shaft holes which are respectively provided in one end portion and another end portion thereof, and in which another end portions of the shaft members of the link mechanisms are respectively inserted and secured rotatably, the first support and the second support being connected to each other by means of fitting and securing means such that corresponding ones of the shaft holes in the one end portions and the other end portions of the first arm portion and the second arm portion become coaxial.
- the first arm portion has in its one end portion and other end portion the pair of shaft holes in which one end portions of the shaft members of the link mechanisms are inserted and secured rotatably.
- the second arm portion has in its one end portion and other end portion the pair of shaft holes in which the other end portions of the shaft members of the link mechanisms are receptively inserted and secured rotatably.
- the arrangement provided is such that the first and second arm portions are connected to each other by means of the fitting and securing means such that the corresponding shaft holes in the one end portions and the other end portions of the first and second arm portions become coaxial.
- the shaft members of the link mechanisms can be rotatably supported on both sides, and it is possible to ensure smooth rotation of the shaft members. Consequently, even if the flexible belt-shaped bodies are used instead of the rigid link members, the belt-shaped bodies can be easily extended and deflected, making it possible to effect the smooth raising and lowering of the slats and support the slats properly.
- the fitting and securing means may include a tubular portion formed integrally on an opposite surface of the first arm portion to one surface thereof and having a fitting opening, and an engaging projection formed integrally on one surface of the second arm portion and adapted to engage the tubular portion at the fitting opening.
- the fitting and securing means may include a tubular portion formed integrally on one surface of the second arm portion and having a fitting opening, and an engaging projection formed integrally on an opposite surface of the first arm portion to one surface thereof and adapted to engage the tubular portion at the fitting opening.
- the engaging projection may have a projection body adapted to be inserted and secured in the tubular portion, as well as a pawl portion formed integrally on a distal end of the projection body and adapted to engage the tubular portion at the fitting opening.
- engagement of the pawl portion with the tubular portion at the fitting opening may be effected in a snap-fit fashion making use of the resilient deflection of the projection body.
- the mutual connection of the first support and the second support by means of the fitting and securing means can be effected simply, and the assembly can be effected in a short time.
- each of the first support and the second support is an integrally molded piece made of a synthetic resin. If each of the first support and the second support is an integrally molded piece, it is possible to attain further light weight and reduction in cost.
- each of the belt-shaped bodies is passed through each of the shaft members and is fabricated from one continuous belt-shaped member.
- Each of the belt-shaped bodies may alternatively have a plurality of belt-shaped pieces which are respectively terminated inside vertically adjacent ones of shaft members.
- Each belt-shaped body is sufficient if it is tough and flexible, and may not have very large elasticity. It is rather preferred that each belt-shaped body be nonelastic. As for the resiliency, each belt-shaped body may be slightly resilient, but it is rather preferred that the belt-shaped body be not resilient.
- each of the belt-shaped bodies may be fabricated from a belt of a woven fabric or a knit fabric of yarn made of a synthetic resin such as polyester, or a belt of a nonwoven fabric made of a synthetic resin.
- each of the belt-shaped bodies may be alternatively fabricated from a flat belt made of such as leather.
- yarn made of a synthetic resin yarn made of polyester is preferable.
- each of the shaft members is formed by an integrally molded piece made of a synthetic resin and including a cylindrical portion and a pair of shaft portions respectively disposed on opposite end faces of the cylindrical portion, and is rotatably fitted at the shaft portion thereof in the corresponding shaft hole of each of the arm portions, each of the belt-shaped bodies being integrally secured to the cylindrical portion and passed through the cylindrical portion.
- the securing of each shaft member to the belt-shaped body may be effected simultaneously with the integral molding of each shaft member by clamping the belt-shaped body between a pair of molds for integrally forming the shaft members, and by allowing a forming material of the shaft members to flow into the pair of molds with the belt-shaped body clamped therebetween.
- each of the shaft members in the blind apparatus according to the 11th aspect may be formed by an integrally molded piece made of a synthetic resin and may further have a pair of rectangular projecting portions disposed at symmetrical positions with respect to an axis of the cylindrical portion.
- each of the belt-shaped bodies may be integrally secured to the cylindrical portion and the pair of rectangular projecting portions, and may be passed through the cylindrical portion and the pair of rectangular projecting portions.
- the securing of each shaft member to the belt-shaped body may be effected simultaneously with the integral molding of each shaft member by clamping the belt-shaped body between a pair of molds for integrally forming the shaft members, and by allowing a forming material of the shaft members to flow into the pair of molds with the belt-shaped body clamped therebetween, as described above.
- each of the slats has a slat body and a fitting portion formed integrally on one surface of the slat body.
- the fitting portion may be made hollow to allow the fitting portion of the slat supporting member to fit therein.
- a window blind apparatus 1 in accordance with this embodiment is comprised of a pair of vertical frames 2 and 3; a pair of link mechanisms 4 and 5 juxtaposed to each other; a plurality of slat supporting members 8 each having one end portion 6 connected to the link mechanism 4 and the other end portion 7 connected to the link mechanism 5; a plurality of slats 9 supported by the respective slat supporting members 8 and juxtaposed in an opening P between the vertical frames 2 and 3; a raising and lowering mechanism 10 for raising and lowering the slats 9 by means of an uppermost slat supporting member 8; a tilting mechanism 11 for tilting the respective slats 9 by causing the link mechanisms 4 and 5 to undergo relative changes in their vertical positions as the slats 9 are raised or lowered by the raising and lowering mechanism 10; inhibiting means 12 for inhibiting the raising of the lowermost slat 9; an upper cover frame 13 disposed between upper portions of the pair of vertical frames 2 and 3;
- the vertical frame 2 has a hollow vertical frame body 14 and a guide-passage forming member 15 fitted to an inner surface of the vertical frame body 14.
- the vertical frame body 14 has a guide slit 16 extending in the vertical direction.
- the guide-passage forming member 15 has a plurality of projecting portions 20 so as to form a pair of guide passages 17 for guiding the traveling of the chain 52 serving as a traveling body, a guide passage 18 for guiding the vertical movement of a connecting plate 121, and a guide passage 19 for guiding the raising and lowering of a projection 101.
- the guide passage 17 sandwiched between one of the pair of guide passages 17 and the guide passage 18 is also adapted to guide the vertical movement of a connecting mechanism 55.
- the link mechanisms 4 and 5 and the tilting mechanism 11 are accommodated in the respective vertical frames 2 and 3. Since the link mechanisms 4 and 5 and the tilting mechanism 11 on the vertical frame 3 side are arranged in the same way as the link mechanisms 4 and 5 and the tilting mechanism 11 on the vertical frame 2 side, a detailed description will be given hereafter mainly of the link mechanisms 4 and 5 and the tilting mechanism 11 on the vertical frame 2 side.
- the link mechanism 4 has one continuous flexible belt-shaped body 21 and a plurality of shaft members 23 which are secured to the belt-shaped body and are each rotatably connected to the one end portion 6 of each slat supporting member 8.
- the link mechanism 4 has the plurality of shaft members 23 connected to each other at fixed intervals, and the plurality of shaft members 23 of the link mechanism 4 are secured to the belt-shaped body 21 and are connected to each other by the belt-shaped body 21.
- the link mechanism 5 also has one continuous flexible belt-shaped body 25 similar to the belt-shaped body 21, as well as a plurality of shaft members 26 which are similar to the shaft members 23 and are secured to the belt-shaped body 25, each shaft member 26 being rotatably fitted in the other end portion 7 of each slat supporting member 8.
- the link mechanism 5 has the plurality of shaft members 26 connected to each other at fixed intervals, and the plurality of shaft members 26 of the link mechanism 5 are secured to the belt-shaped body 25 and are connected to each other by the belt-shaped body 25.
- the belt-shaped body 21 is passed through the shaft members 23 which are rotatably fitted in the end portions 6 of the respective slat supporting members 8, and is secured to the shaft members 23 at the respective passing positions.
- the belt-shaped body 25 is passed through the shaft members 26 which are rotatably fitted in the end portions 7 of the respective slat supporting members 8, and is secured to the shaft members 26 at the respective passing positions.
- Each of the belt-shaped bodies 21 and 25 may be fabricated from a belt of a woven fabric or a knit fabric of yarn made of a synthetic resin such as polyester, or a flat belt of a nonwoven fabric made of a synthetic resin, or may be fabricated from another tough flexible belt.
- each of the shaft members 23 and 26 is formed by an integrally molded piece made of a synthetic resin and including a cylindrical portion 46; a pair of shaft portions 47 which are integrally provided on opposite end faces of the cylindrical portion 46; and a pair of rectangular projecting portions 115 and 116 disposed symmetrically about the axis of the cylindrical portion 46 and formed integrally with the cylindrical portion 46.
- Each of the belt-shaped bodies 21 and 25 is integrally secured to the cylindrical portion 46 and the pair of rectangular projecting portions 115 and 116, and is passed through the cylindrical portion 46 and the pair of rectangular projecting portions 115 and 116. The securing of each cylindrical portion 46 and the pair of rectangular projecting portions 115 and 116 to each of the belt-shaped bodies 21 and 25 may be effected at the time of the integral molding of each of the shaft members 23 and 26.
- Each of the slat supporting members 8 is interposed between, on the one hand, the pair of link mechanisms 4 and 5 and, on the other hand, each of ends 39 and 49 of the plurality of slats 9 arranged parallel to each other to allow the slats 9 to be supported by the pair of link mechanisms 4 and 5.
- Each of the slat supporting members 8 has a support 22 and a support 42 which is connected to the support 22 by means of a fitting and securing means 40.
- the support 22 has an arm portion 31 having a pair of shaft holes, i . e .
- a pair of through holes 30 in this embodiment which are respectively provided in one end portion and the other end portion thereof (which are also the one end portion 6 and the other end portion 7 of the slat supporting member 8), and in which the shaft portions 47 at one end portions of the shaft members 23 and 26 of the link mechanisms 4 and 5 are respectively inserted and secured rotatably; a shaft portion 36 formed integrally on one surface of the arm portion 31 and disposed in and outside the vertical frame 2 through the guide slit 16; and a fitting projection 37 formed integrally with the shaft portion 36 and adapted to be fitted in a fitting portion 60 of the slat 9.
- the support 42 has an arm portion 35 having a pair of shaft holes, i.e., a pair of through holes 34 in this embodiment, which are respectively provided in one end portion and the other end portion thereof (which are also the one end portion 6 and the other end portion 7 of the slat supporting member 8), and in which the shaft portions 47 at the other end portions of the shaft members 23 and 26 of the link mechanisms 4 and 5 are respectively inserted and secured rotatably.
- a pair of shaft holes i.e., a pair of through holes 34 in this embodiment, which are respectively provided in one end portion and the other end portion thereof (which are also the one end portion 6 and the other end portion 7 of the slat supporting member 8), and in which the shaft portions 47 at the other end portions of the shaft members 23 and 26 of the link mechanisms 4 and 5 are respectively inserted and secured rotatably.
- Each of the shaft members 23 and 26 is rotatably fitted and inserted in the corresponding through holes 30 and 34 of the arm portions 31 and 35 at the pair of shaft portions 47 which are integrally provided on opposite end faces of the cylindrical portion 46 disposed in such a manner as to be sandwiched between the arm portion 31 and the arm portion 35.
- the fitting and securing means 40 is adapted to connect the support 22 and the support 42 so that the corresponding through holes 30 and 34 in the one end portions and the other end portions of the arm portions 31 and 35 become coaxial.
- the fitting and securing means 40 has a hollow rectangular tubular portion 43 formed integrally on an opposite surface of the arm portion 31 to one surface thereof on which the shaft portion 36 is integrally formed, the hollow rectangular tubular portion 43 having a pair of fitting openings 41, as well as a pair of engaging projections 44 formed integrally on one surface of the arm portion 35 and adapted to engage the tubular portion 43 at its fitting openings 41.
- Each engaging projection 44 has a projection body 45 formed integrally on one surface of the arm portion 35 and adapted to be inserted and secured in the tubular portion 43, as well as a pawl portion 48 formed integrally on a distal end of the projection body 45 and adapted to engage the tubular portion 43 at its fitting opening 41.
- the engagement of the pawl portion 48 with the tubular portion 43 at its fitting opening 41 is effected in a snap-fit fashion making use of the resilient deflection of the projection body 45.
- the support 22 including the tubular portion 43 is an integrally molded piece formed of a synthetic resin.
- the support 42 including the pair of engaging projections 44 is an integrally molded piece formed of a synthetic resin.
- Each of the slats 9 is supported at its respective end portions 39 and 49 by a pair of slat supporting mechanisms 50 each including the plurality of slat supporting members 8 and the pair of link mechanisms 4 and 5 respectively having the plurality of shaft members 23 and 26 respectively connected to each other at fixed intervals.
- Each of the slats 9 has a plate-like curved slat body 51 and the rectangular fitting portion 60 formed integrally with one surface of the slat body 51 in such a manner as to extend from the end portion 39 to the end portion 49 on the one surface of the slat body 51.
- the fitting portion 60 is made hollow to allow the fitting projections 37 to fit therein.
- the slats 9 are supported at their opposite end portions 39 an 49 by the slat supporting mechanisms 50 on the vertical frame 2 side and the vertical frame 3 side so as to be parallel to each other in the opening P.
- the fitting portion 60 need not be provided so as to extend from the end portion 39 to the end portion 49 on one surface of the slat body 51, and it suffices if the fitting portion 60 is provided on the one surface of the slat body 51 at at least each of the end portions 39 and 49.
- the raising and lowering mechanism 10 for raising and lowering the slats 9 by means of the slat supporting mechanisms 50 includes the chain 52 disposed in each of the vertical frames 2 and 3 and serving as a flexible traveling body; the connecting mechanism 55 for connecting to the uppermost slat supporting member 8 the other end portion 54 of the chain 52 having one end portion 53 which is a free end; a traveling unit 56 for causing the chain 52 to travel in directions A and B; and a preventing mechanism 57 for preventing the deflection of the chain 52 as the chain 52 travels in the directions A and B.
- the chain 52 is disposed in the guide passages 17 so as not to be deflected, and its traveling in the directions A and B is guided by the guide passage 17.
- the connecting mechanism 55 includes a connecting plate 62 connected rotatably to the arm portion 35 by means of a pin member 61 disposed concentrically with the shaft portion 36 of the uppermost slat supporting member 8, as well as a slider 64 secured to the connecting plate 62 by means of a pair of pin members 63.
- the slider 64 includes a slider body 65 and a pair of rollers 66 (only one is illustrated) which are supported rotatably by the slider body 65 by means of the pair of pin members 63 and are disposed vertically movably in the other guide passage 17 sandwiched between one guide passage 17 and the guide passage 18.
- the other end portion 54 of the chain 52 is rotatably connected to the slider body 65 by means of a pin member 67.
- the traveling unit 56 has an endless ball chain 71 for generating a traveling force for the chain 52 by a manual operation as well as a transmitting means 72 for transmitting the traveling force from the ball chain 71 to the chain 52.
- the transmitting means 72 includes a pulley 74 around which the ball chain 71 is wound and which is secured to a rotating shaft 73; a gear 75 secured to the rotating shaft 73; a gear 77 meshing with the gear 75 and secured to a rotating shaft 76; a gear 78 secured to the rotating shaft 76; a gear 80 meshing with the gear 78 and secured to a rotating shaft 79; a gear 82 meshing with the gear 80 and secured to a rotating shaft 81; a sprocket wheel 84 which is secured to one end portion 83 of the rotating shaft 81 and around which the chain 52 is wound; and a braking mechanism 85 for imparting fixed braking to the rotation of the rotating shaft 81.
- the ball chain 71 wound around the pulley 74 is suspended on an indoor side 88 in an opening of a window or the like of a building where the window blind apparatus 1 is installed, in such a manner as to be manually operable.
- the rotating shafts 73, 76, 79, and 81 are rotatably supported by a bracket 91, and the bracket 91 is secured to an inner surface of an upper portion of the vertical frame body 14 of the vertical frame 2.
- the gears 75, 77, 78, 80, and 82 constitute a reduction gear mechanism for reducing the rotational speed of the pulley 74 and transmitting it to the rotating shaft 81.
- the rotating shaft 81 to one end portion 83 of which the sprocket wheel 84 disposed in the vertical frame body 14 is disposed is secured, is passed in the upper cover frame 13, and extends to the interior of the vertical frame body of the vertical frame 3.
- a sprocket wheel similar to the sprocket wheel 84 is also secured to the other end portion of the rotating shaft 81 on the vertical frame 3 side.
- a chain disposed in the vertical frame 3 is wound around the sprocket wheel on the other end portion side of the rotating shaft 81.
- the braking mechanism 85 includes an annular braking plate 93 disposed in a housing 92 secured to the bracket 91; an annular braking backing plate 94 secured to the rotating shaft 81; and a coil spring 95 interposed between the housing 92 and the braking plate 93 and adapted to cause the braking plate 93 to be resiliently pressed against the braking backing plate 94 so as to be brought into frictional contact therewith.
- the braking mechanism 85 allows the rotating shaft 81 to rotate, whereas when the ball chain 71 is not manually caused to travel, the braking mechanism 85 inhibits the rotation of the rotating shaft 81 by means of the chain 52 and the sprocket wheel 84 due to the self-weight of the slats 9 and the like.
- the preventing mechanism 57 has chain guides 86 and 87 disposed around the outer periphery of the sprocket wheel 84 and secured to the inner surface of the upper portion of the vertical frame body 14 by means of a mounting plate 96.
- the chain guides 86 and 87 are adapted to ensure the meshing of the chain 52 with the sprocket wheel 84 by preventing the deflection of the chain 52 around the sprocket wheel 84.
- the pulley 74 rotates, which causes the sprocket wheel 84 to rotate by means of the gears 75, 77, 78, 80, and 82, causing the chain 52 to travel in the direction A, for example.
- the connecting mechanism 55 is raised while being guided by the guide passage 17 together with the raising of the end portion 54.
- the uppermost slat supporting member 8 having the arm portion 35 connected rotatably to the connecting mechanism 55 by means of the pin member 61 is also raised.
- the raising and lowering mechanism 10 connected to the uppermost slat supporting member 8 is adapted to lift the uppermost slat supporting member 8 to consecutively raise the slats 9.
- the pulley 74 rotates, which causes the sprocket wheel 84 to rotate by means of the gears 75, 77, 78, 80, and 82, causing the chain 52 to travel in the direction B.
- the connecting mechanism 55 is lowered while being guided by the guide passage 17 together with the lowering of the end portion 54.
- the connecting mechanism 55 is thus lowered, the uppermost slat supporting member 8 having the arm portion 35 connected rotatably to the connecting mechanism 55 by means of the pin member 61 is also lowered.
- the raising and lowering mechanism 10 connected to the uppermost slat supporting member 8 is adapted to lower the uppermost slat supporting member 8 to consecutively lower the slats 9.
- the rotating shaft 73 is connected to the rotating shaft 81 by means of the speed reducing mechanism consisting of the gears 75, 77, 78, 80, and 82, in stead of indirectly transmitting the rotation of the pulley 74 to the rotating shaft 81, the pulley 74 may be secured to the rotating shaft 81 to directly transmit the rotation of the pulley 74 to the rotating shaft 81.
- an electric motor instead of the ball chain 71 or in addition to the ball chain 71, an electric motor may be used.
- the output rotating shaft of the electric motor may be connected to the rotating shaft 73, or the output rotating shaft of the electric motor may be used as the rotating shaft 81, in which case an electric motor whose speed is controllable may be used, as required.
- the tilting mechanism 11 has the cylindrical projection 101 which is formed integrally on a surface of the arm portion 35 of the uppermost slat supporting member 8 opposite to the surface thereof on which the engaging projections 44 are formed, so as to move together with the rising and lowering of the uppermost slat supporting member 8, as well as a cam member 103 having a guide recess 102 attached to the guide-passage forming member 15 and communicating with the guide passage 19.
- the tilting mechanism 11 causes the projection 101 provided on the uppermost slat supporting member 8 to abut against the cam member 103 to guide the projection 101 from the guide passage 19 to the guide recess 102, causing the uppermost slat supporting member 8 having the arm portion 35 with the projection 101 formed thereon to rotate about the shaft portion 36 in an R1 direction.
- the belt-shaped body 25 of the link mechanism 5 is lifted up and raised relative to the belt-shaped body 21 of the link mechanism 4.
- the lower slat supporting members 8 following the uppermost slat supporting member 8 are also made to undergo rotation similarly in the R1 direction by means of the link mechanisms 4 and 5, with the result that all the slats 9 are similarly rotated in the R1 direction.
- the uppermost slat supporting member 8 is lowered due to the traveling of the chain 52 in the direction B, the projection 101 is guided from the guide recess 102 to the guide passage 19, causing the uppermost slat supporting member 8 to rotate about the shaft portion 36 in an R2 direction.
- the belt-shaped body 21 of the link mechanism 4 is lifted up and raised relative to the belt-shaped body 25 of the link mechanism 5, thereby causing all the slats 9 to rotate similarly in the R2 direction.
- the inhibiting means 12 includes the connecting plate 121 disposed in a lower portion of the guide-passage forming member 15; a coil spring 124 serving as a resilient member having one end portion 122 connected to the connecting plate 121 and the other end portion 123 secured to a lower end of the guide-passage forming member 15; a roller 126 attached rotatably to the connecting plate 121 by means of a shaft member 125 and disposed in the other guide passage 17 sandwiched between the one guide passage 17 and the guide passage 18; and a pair of rollers 129 (only one is shown) attached rotatably to the connecting plate 121 by means of shaft members 127 and 128 and disposed in the guide passage 18.
- the connecting plate 121 which is prevented from swinging by the pair of rollers 129, is connected to the arm portion 35 of the lowermost slat supporting member 8 rotatably in the R1 and R2 directions by means of a shaft member (not shown) disposed concentrically with the shaft portion 36 of the lowermost slat supporting member 8.
- the inhibiting means 12 is adapted to pull the connecting plate 121 downward by the resiliency of the coil spring 124, thereby resiliently preventing the lifting up of the lowermost slat supporting member 8 by more than a fixed amount.
- the closing plate 141 is provided uprightly on the bottom frame 14a to close a gap occurring between the lowermost slat 9 and the bottom frame 14a in the state in which the opening P is completely closed (the state shown in Fig. 13).
- the projection 101 is disposed in the guide passage 19, and the belt-shaped bodies 21 and 25 remain deflected, as shown in Fig. 12, while the slats 9 are superposed one on top of another (stacked) in a lower position, as shown in Fig. 11.
- the uppermost slat supporting member 8 first starts to be raised.
- the belt-shaped bodies 21 and 25 of the link mechanisms 4 and 5 are fully extended, allowing the slat supporting members 8 following the uppermost slat supporting member 8 to start to be raised. Thereafter, the ensuing slat supporting members 8 are consecutively raised in a similar manner, and the slats 9 are also consecutively raised at the same time.
- the projection 101 is raised while being guided by the guide passage 19, the slats 9 are held in a substantially horizontally tilted state, with the result that the opening P is closed by the slats 9 in the form of a rattan blind, as shown in Figs. 1 and 2.
- the belt-shaped bodies 21 and 25 are fully extended at a position immediately before the complete closure of the opening P. Meanwhile, the lowermost slat supporting member 8 is slightly raised against the resiliency of the coil spring 124 by means of the belt-shaped bodies 21 and 25. Then, when the projection 101 faces the guide recess 102 and abuts against the cam member 103, the uppermost slat supporting member 8 starts to be rotated in the R1 direction, and the upper end portion 32 of the belt-shaped body 25 comes to be lifted more than the upper end portion 28 of the belt-shaped body 21.
- the uppermost slat 9 is rotated in the R1 direction, and the rotation of the uppermost slat supporting member 8 is transmitted to the lower slat supporting members 8 by means of the belt-shaped body 21 and the belt-shaped body 25, thereby holding all the slat supporting members 8 and slats 9 in a substantially vertically tilted state, as shown in Figs. 13 and 14.
- the opening P is fully closed by the slats 9.
- the ball chain 71 is manually operated in the opposite direction to the one described above, and the projection 101 is guided from the guide recess 102 to the guide passage 19, consecutively deflecting the belt-shaped bodies 21 and 25 starting with their lower portions at the same time as the uppermost slat supporting member 8 is lowered.
- the raising and lowering mechanism 10 is adapted to raise and lower the slats 9 by means of the uppermost slat supporting member 8, the stack of the slats 9 can be disposed in the lower portion of the opening P in the completely open state of the opening P, as shown in Fig. 11.
- daylighting can be provided without being hampered by the slats 9, and a sense of openness can be sufficiently obtained when the opening is open.
- the link mechanisms 4 and 5 are respectively comprised of the flexible belt-shaped bodies 21 and 25 and the shaft members 23 and 26 which are secured to the belt-shaped bodies 21 and 25 at fixed intervals and which are connected to each other by the belt-shaped bodies 21 and 25, the assembly and maintenance of the link mechanisms 4 and 5 are made simple. Furthermore, as the belt-shaped bodies 21 and 25 and the plurality of shaft members 23 and 26 are fabricated from a synthetic resin or the like, it is possible to attain light weight, so that not a very large force is required for the raising and lowering of the slats 9.
- the arm portion 31 has in its one end portion and other end portion the pair of through holes 30 in which the shaft portions 47 at one end portions of the shaft members 23 and 26 of the link mechanisms 4 and 5 are respectively inserted and secured rotatably.
- the arm portion 35 has in its one end portion and other end portion the pair of through holes 34 in which the shaft portions 47 at the other end portions of the shaft members 23 and 26 of the link mechanisms 4 and 5 are respectively inserted and secured rotatably.
- the arrangement provided is such that the arm portions 31 and 35 are connected to each other by means of the fitting and securing means 40 such that the corresponding through holes 30 and 34 in the one end portions and the other end portions of the arm portions 31 and 35 become coaxial.
- the shaft members 23 and 26 of the link mechanisms 4 and 5 can be rotatably supported on both sides, and it is possible to ensure smooth rotation of the shaft members 23 and 26. Consequently, even if the flexible belt-shaped bodies 21 and 25 are used instead of the rigid link members, the belt-shaped bodies 21 and 25 can be easily extended and deflected, making it possible to effect the smooth raising and lowering of the slats 9 and support the slats 9 properly.
- the window blind apparatus 1 when the opening P is completely closed, the gap occurring below the lowermost slat 9 can be closed by the closing plate 141. As a result, the entry or the like of rainwater through this gap can be prevented, and a completely closed state of the opening P can be fully ensured.
- an endless chain instead of the chain 52 with ends having the end portions 53 and 52, an endless chain may be used.
- another sprocket wheel is disposed in addition to the sprocket wheel 84, and the endless chain is wound around and trained between the two sprocket wheels.
- the preventing mechanism 57 can be omitted if such an endless chain is used.
- a timing belt or the like may be used instead of the chain 52. In the case where the timing belt is used, it suffices if a toothed pulley is used instead of the sprocket wheel 84.
- the fitting and securing means 40 is arranged such that the hollow rectangular tubular portion 43 having the fitting opening 41 is integrally formed on the other surface of the arm portion 31, while the pair of engaging projections 44 are integrally formed on one surface of the arm portion 35.
- the fitting and securing means 40 may be arranged such that the hollow rectangular tubular portion 43 having the fitting opening 41 is integrally formed on one surface of the arm portion 35, while the pair of engaging projections 44 for engaging the tubular portion 43 in the fitting opening 41 are integrally formed on the other surface of the arm portion 31.
- the fitting and securing means 40 is formed by the pair of engaging projections 44 for engaging the tubular portion 43 at the pair of fitting openings 41.
- the fitting and securing means 40 may be formed by comprising one engaging projection 152 formed integrally on one surface of the arm portion 35 and adapted to engage the tubular portion 43 at one fitting opening 151, and a pair of fitting projections 153 disposed with the engaging projection 152 located therebetween and adapted to be fitted in the tubular portion 43.
- the engaging projection 152 has a projection body 155 for being inserted and secured in the tubular portion 43, as well as a pawl portion 156 formed integrally on a distal end of the projection body 155 and adapted to engage the tubular portion 43 at its fitting opening 151.
- the engagement of the pawl portion 156 with the tubular portion 43 at its fitting opening 151 is effected in a snap-fit fashion making use of the resilient deflection of the projection body 155.
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Blinds (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
Description
- The present invention relates to a blind apparatus disposed in an opening such as a window of a building to open or close the opening.
- The present assignee earlier proposed a blind apparatus disclosed in JP-A-8-326445.
- The aforementioned blind apparatus is comprised of a pair of link mechanisms; a plurality of slat supporting members each having one end portion connected to one of the link mechanisms and the other end portion connected to the other link mechanism; slats respectively supported by the slat supporting members; a raising and lowering mechanism for raising and lowering the slats; and a tilting mechanism for tilting the slats by causing the pair of link mechanisms to undergo relative positional changes as the slats are raised or lowered by the raising and lowering mechanism. Each of the slat supporting mechanisms has an arm portion for supporting an end portion of the slat at a substantially central portion of the arm portion.
- Incidentally, with the blind apparatus disclosed in the above-described publication, since each of the link mechanisms is formed by linking the plate-shaped rigid link members in a chain form by means of the shafts, substantial time is required for the assembly of the link mechanisms, and a large force is required for raising and lowering the slats due to the weight of the link members.
- In addition, with the blind apparatus disclosed in the above-described publication, when the opening is open, the entire slats are raised by lifting the lowermost slat supporting member, so that stacked slats are located above even when the opening is completely open. Consequently, there is a possibility that daylighting is hampered by the stacked slats, and a sense of openness is not sufficiently obtained when the opening is open.
- The present invention has been devised in view of the above-described aspects, and its object is to provide a blind apparatus which makes it possible to effect assembly and maintenance simply in a short time, does not require a very large force for raising and lowering the slats, makes it possible to effect daylighting without being hampered by the slats in the completely open state of the opening, and makes it possible to sufficiently obtain a sense of openness when the opening is open.
- In accordance with a first aspect of the invention, there is provided a blind apparatus comprising: a first link mechanism and a second link mechanism juxtaposed to each other; a plurality of slat supporting members each having one end portion connected to the first link mechanism and another end portion connected to the second link mechanism; a plurality of slats respectively supported by the slat supporting members; a raising and lowering mechanism for raising and lowering the slats by means of an uppermost one of the slat supporting members; a tilting mechanism for tilting the slats by causing the first and the second link mechanisms to undergo relative positional changes as the slats are raised or lowered by the raising and lowering mechanism; and inhibiting means for inhibiting the raising of a lowermost one of the slats, each of the first and the second link mechanisms having a flexible belt-shaped body and a plurality of shaft members which are secured to the belt-shaped body at fixed intervals and are connected to each other by the belt-shaped body, the shaft member of the first link mechanism and the shaft member of the second link mechanism being respectively rotatably fitted in the one end portion of each of the slat supporting members and the other end portion of each of the slat supporting member, the raising and lowering mechanism having a flexible traveling body, a connecting mechanism which connects an end portion of the traveling body to the uppermost one of the slat supporting members and is moved by the traveling of the traveling body, and a traveling device for causing the traveling body to travel, the tilting mechanism having a projection provided on the uppermost one of the slat supporting member so as to move together with the rising and lowering of the uppermost one of the slat supporting members and a cam member against which the projection abuts as the uppermost one of the slat supporting members is raised, the inhibiting means including a connecting plate which is connected rotatably to the lowermost one of the slat supporting members and is vertically movable and a resilient member having one end portion connected to the connecting plate and another end portion secured.
- In accordance with the blind apparatus according to the first aspect of the invention, since the raising and lowering mechanism is adapted to raise and lower the slats by means of the uppermost slat supporting member, a stack of slats can be disposed in the lower portion of the opening when the opening is completely open. Consequently, when the opening is completely open, daylighting can be provided without being hampered by the slats, and a sense of openness can be sufficiently obtained. Moreover, since the first and second link mechanisms are respectively comprised of the flexible belt-shaped bodies and the shaft members which are secured to the belt-shaped bodies at fixed intervals and which are connected to each other by the belt-shaped bodies, the assembly and maintenance of the first and second link mechanisms are made simple. Furthermore, as the belt-shaped bodies and the plurality of shaft members are fabricated from a synthetic resin or the like, it is possible to attain light weight, so that not a very large force is required for the raising and lowering of the slats.
- In accordance with the blind apparatus according to a second aspect of the invention, the blind apparatus according to the first aspect of the invention further comprises:
- guide-passage forming members for forming a guide passage for guiding the traveling of the traveling body and the vertical movement of the connecting mechanism, a guide passage for guiding the raising and lowering of the projection, and a guide passage for guiding the vertical movement of the connecting plate.
-
- In accordance with the blind apparatus according to a third aspect of the invention, the blind apparatus according to the first or the second aspect of the invention further comprises: a closing plate for closing a gap occurring below the lowermost one of the slat supporting members.
- In accordance with the blind apparatus according to the third aspect of the invention, when the opening is completely closed, the gap occurring the lowermost slat can be closed by the closing plate. As a result, the entry or the like of rainwater through this gap can be prevented, and a completely closed state of the opening can be fully ensured.
- As in the blind apparatus according to a fourth aspect of the invention, each of the slat supporting member is preferably comprised of: a first support including a first arm portion having a pair of shaft holes which are respectively provided in one end portion and another end portion thereof, and in which one end portions of the shaft members of the link mechanisms are respectively inserted and secured rotatably, a shaft portion formed integrally on one surface of the first arm portion, and a fitting projection formed integrally with the shaft portion and adapted to be fitted in the fitting portion of the slat; and a second support including a second arm portion having a pair of shaft holes which are respectively provided in one end portion and another end portion thereof, and in which another end portions of the shaft members of the link mechanisms are respectively inserted and secured rotatably, the first support and the second support being connected to each other by means of fitting and securing means such that corresponding ones of the shaft holes in the one end portions and the other end portions of the first arm portion and the second arm portion become coaxial.
- In accordance with the blind apparatus according to the fourth aspect of the invention, the first arm portion has in its one end portion and other end portion the pair of shaft holes in which one end portions of the shaft members of the link mechanisms are inserted and secured rotatably. Further, the second arm portion has in its one end portion and other end portion the pair of shaft holes in which the other end portions of the shaft members of the link mechanisms are receptively inserted and secured rotatably. Moreover, the arrangement provided is such that the first and second arm portions are connected to each other by means of the fitting and securing means such that the corresponding shaft holes in the one end portions and the other end portions of the first and second arm portions become coaxial. Therefore, the shaft members of the link mechanisms can be rotatably supported on both sides, and it is possible to ensure smooth rotation of the shaft members. Consequently, even if the flexible belt-shaped bodies are used instead of the rigid link members, the belt-shaped bodies can be easily extended and deflected, making it possible to effect the smooth raising and lowering of the slats and support the slats properly.
- As in the blind apparatus according to a fifth aspect of the invention, the fitting and securing means may include a tubular portion formed integrally on an opposite surface of the first arm portion to one surface thereof and having a fitting opening, and an engaging projection formed integrally on one surface of the second arm portion and adapted to engage the tubular portion at the fitting opening. Further, as in the blind apparatus according to a sixth aspect of the invention, the fitting and securing means may include a tubular portion formed integrally on one surface of the second arm portion and having a fitting opening, and an engaging projection formed integrally on an opposite surface of the first arm portion to one surface thereof and adapted to engage the tubular portion at the fitting opening.
- In the blind apparatus according to the fifth or sixth aspect of the invention, as in the blind apparatus according to a seventh aspect of the invention, the engaging projection may have a projection body adapted to be inserted and secured in the tubular portion, as well as a pawl portion formed integrally on a distal end of the projection body and adapted to engage the tubular portion at the fitting opening. In this case, engagement of the pawl portion with the tubular portion at the fitting opening may be effected in a snap-fit fashion making use of the resilient deflection of the projection body. In this arrangement, the mutual connection of the first support and the second support by means of the fitting and securing means can be effected simply, and the assembly can be effected in a short time.
- Preferably, as in the blind apparatus according to an eighth aspect of the invention, each of the first support and the second support is an integrally molded piece made of a synthetic resin. If each of the first support and the second support is an integrally molded piece, it is possible to attain further light weight and reduction in cost.
- Preferably, as in the blind apparatus according to a ninth aspect of the invention, each of the belt-shaped bodies is passed through each of the shaft members and is fabricated from one continuous belt-shaped member.
- Each of the belt-shaped bodies may alternatively have a plurality of belt-shaped pieces which are respectively terminated inside vertically adjacent ones of shaft members. Each belt-shaped body is sufficient if it is tough and flexible, and may not have very large elasticity. It is rather preferred that each belt-shaped body be nonelastic. As for the resiliency, each belt-shaped body may be slightly resilient, but it is rather preferred that the belt-shaped body be not resilient. Preferably, as in the blind apparatus according to a 10th aspect of the invention, each of the belt-shaped bodies may be fabricated from a belt of a woven fabric or a knit fabric of yarn made of a synthetic resin such as polyester, or a belt of a nonwoven fabric made of a synthetic resin.
- In the invention, each of the belt-shaped bodies may be alternatively fabricated from a flat belt made of such as leather. As the yarn made of a synthetic resin, yarn made of polyester is preferable. As a more preferable example, it is possible to cite a flexible belt-shaped body made by plain weaving using such polyester-made yarn and having a width of 6 mm to 12 mm and a thickness of 0.4 mm to 0.7 mm, more specifically a width of 7 mm and a thickness of 0.6 mm.
- Preferably, as in the blind apparatus according to an 11th aspect of the invention, each of the shaft members is formed by an integrally molded piece made of a synthetic resin and including a cylindrical portion and a pair of shaft portions respectively disposed on opposite end faces of the cylindrical portion, and is rotatably fitted at the shaft portion thereof in the corresponding shaft hole of each of the arm portions, each of the belt-shaped bodies being integrally secured to the cylindrical portion and passed through the cylindrical portion.
- In the case where each of the shaft members formed by an integrally molded piece made of a synthetic resin, as in the blind apparatus according to the 11th aspect, the securing of each shaft member to the belt-shaped body may be effected simultaneously with the integral molding of each shaft member by clamping the belt-shaped body between a pair of molds for integrally forming the shaft members, and by allowing a forming material of the shaft members to flow into the pair of molds with the belt-shaped body clamped therebetween.
- As in the blind apparatus according to a 12th aspect of the invention, each of the shaft members in the blind apparatus according to the 11th aspect may be formed by an integrally molded piece made of a synthetic resin and may further have a pair of rectangular projecting portions disposed at symmetrical positions with respect to an axis of the cylindrical portion. In this case, each of the belt-shaped bodies may be integrally secured to the cylindrical portion and the pair of rectangular projecting portions, and may be passed through the cylindrical portion and the pair of rectangular projecting portions.
- In the case of the shaft members each having the pair of rectangular projecting portions, the securing of each shaft member to the belt-shaped body may be effected simultaneously with the integral molding of each shaft member by clamping the belt-shaped body between a pair of molds for integrally forming the shaft members, and by allowing a forming material of the shaft members to flow into the pair of molds with the belt-shaped body clamped therebetween, as described above.
- In a preferred example, each of the slats has a slat body and a fitting portion formed integrally on one surface of the slat body. In this case, the fitting portion may be made hollow to allow the fitting portion of the slat supporting member to fit therein.
- In accordance with the present invention, it is possible to provide a blind apparatus which makes it to effect assembly and maintenance simply in a short time, does not require a very large force for raising and lowering the slats, makes it possible to effect daylighting without being hampered by the slats in the completely open state of the opening, and makes it possible to sufficiently obtain a sense of openness when the opening is open.
- Hereafter, a detailed description will be given of the present invention and embodiments thereof on the basis of the preferred embodiments shown in the drawings. It should be noted that the present invention is not limited to these embodiments.
-
- Fig. 1 is a perspective view of a preferred embodiment of the invention;
- Fig. 2 is a partial side elevational view of the embodiment shown in Fig. 1;
- Fig. 3 is another partial side elevational view of the embodiment shown in Fig. 1;
- Fig. 4 is an explanatory cross-sectional view, taken along line IV - IV shown in Fig. 3, of the embodiment including a vertical frame shown in Fig. 1;
- Fig. 5 is an explanatory cross-sectional view, taken along line V - V shown in Fig. 3, of the embodiment including the vertical frame shown in Fig. 1;
- Fig. 6 is an explanatory cross-sectional view, taken along line VI - VI shown in Fig. 3, of the embodiment including the vertical frame shown in Fig. 1;
- Fig. 7 is an explanatory plan view of a transmitting means of the embodiment shown in Fig. 1;
- Fig. 8 is an explanatory fragmentary exploded perspective view of the embodiment shown in Fig. 1;
- Fig. 9 is an explanatory perspective view of a slat supporting member of the embodiment shown in Fig. 1;
- Figs. 10(a) and 10(b) are explanatory views of a link mechanism of the embodiment shown in Fig. 1, in which Fig. 10 (a) is an explanatory front elevational view thereof and Fig. 10(b) is an explanatory side elevational view thereof;
- Fig. 11 is a diagram explaining the operation of the embodiment shown in Fig. 1;
- Fig. 12 is another diagram explaining the operation of the embodiment shown in Fig. 1;
- Fig. 13 is still another diagram explaining the operation of the embodiment shown in Fig. 1;
- Fig. 14 is a further diagram explaining the operation of the embodiment shown in Fig. 1; and
- Fig. 15 is a partial perspective view of another preferred example of the invention.
-
- In Figs. 1 to 10, a window blind apparatus 1 in accordance with this embodiment is comprised of a pair of
vertical frames link mechanisms slat supporting members 8 each having oneend portion 6 connected to thelink mechanism 4 and theother end portion 7 connected to thelink mechanism 5; a plurality ofslats 9 supported by the respectiveslat supporting members 8 and juxtaposed in an opening P between thevertical frames mechanism 10 for raising and lowering theslats 9 by means of an uppermostslat supporting member 8; atilting mechanism 11 for tilting therespective slats 9 by causing thelink mechanisms slats 9 are raised or lowered by the raising and loweringmechanism 10; inhibitingmeans 12 for inhibiting the raising of thelowermost slat 9; anupper cover frame 13 disposed between upper portions of the pair ofvertical frames bottom frame 14a disposed between lower portions of the pair ofvertical frames closing plate 141 for closing a gap which can occur below thelowermost slat 9. - Since the
vertical frames vertical frame 2. Thevertical frame 2 has a hollowvertical frame body 14 and a guide-passage forming member 15 fitted to an inner surface of thevertical frame body 14. Thevertical frame body 14 has a guide slit 16 extending in the vertical direction. The guide-passage forming member 15 has a plurality of projectingportions 20 so as to form a pair ofguide passages 17 for guiding the traveling of thechain 52 serving as a traveling body, aguide passage 18 for guiding the vertical movement of a connectingplate 121, and aguide passage 19 for guiding the raising and lowering of aprojection 101. Theguide passage 17 sandwiched between one of the pair ofguide passages 17 and theguide passage 18 is also adapted to guide the vertical movement of a connectingmechanism 55. - The
link mechanisms tilting mechanism 11 are accommodated in the respectivevertical frames link mechanisms tilting mechanism 11 on thevertical frame 3 side are arranged in the same way as thelink mechanisms tilting mechanism 11 on thevertical frame 2 side, a detailed description will be given hereafter mainly of thelink mechanisms tilting mechanism 11 on thevertical frame 2 side. - The
link mechanism 4 has one continuous flexible belt-shapedbody 21 and a plurality ofshaft members 23 which are secured to the belt-shaped body and are each rotatably connected to the oneend portion 6 of eachslat supporting member 8. Thus thelink mechanism 4 has the plurality ofshaft members 23 connected to each other at fixed intervals, and the plurality ofshaft members 23 of thelink mechanism 4 are secured to the belt-shapedbody 21 and are connected to each other by the belt-shapedbody 21. - In the same way as the
link mechanism 4, thelink mechanism 5 also has one continuous flexible belt-shapedbody 25 similar to the belt-shapedbody 21, as well as a plurality ofshaft members 26 which are similar to theshaft members 23 and are secured to the belt-shapedbody 25, eachshaft member 26 being rotatably fitted in theother end portion 7 of eachslat supporting member 8. Thus thelink mechanism 5 has the plurality ofshaft members 26 connected to each other at fixed intervals, and the plurality ofshaft members 26 of thelink mechanism 5 are secured to the belt-shapedbody 25 and are connected to each other by the belt-shapedbody 25. - As particularly shown in Figs. 10(a) and 10(b), the belt-shaped
body 21 is passed through theshaft members 23 which are rotatably fitted in theend portions 6 of the respectiveslat supporting members 8, and is secured to theshaft members 23 at the respective passing positions. The belt-shapedbody 21, which is passed at itsupper end portion 28 and its lower end portion 29 through theshaft members 23 respectively fitted rotatably to theend portions 6 of the uppermost and lowermostslat supporting members 8, is secured to theshaft members 23 at thatupper end portion 28 and that lower end portion 29 and terminates there. - In the same way as the belt-shaped
body 21, the belt-shapedbody 25 is passed through theshaft members 26 which are rotatably fitted in theend portions 7 of the respectiveslat supporting members 8, and is secured to theshaft members 26 at the respective passing positions. The belt-shapedbody 25, which is passed at itsupper end portion 32 and itslower end portion 33 through theshaft members 26 respectively fitted rotatably to theend portions 7 of the uppermost and lowermostslat supporting members 8, is secured to theshaft members 26 at thatupper end portion 32 and thatlower end portion 33 and terminates there. - Each of the belt-shaped
bodies - As particularly shown in Figs. 10(a) and 10(b), each of the
shaft members cylindrical portion 46; a pair ofshaft portions 47 which are integrally provided on opposite end faces of thecylindrical portion 46; and a pair of rectangular projectingportions cylindrical portion 46 and formed integrally with thecylindrical portion 46. Each of the belt-shapedbodies cylindrical portion 46 and the pair of rectangular projectingportions cylindrical portion 46 and the pair of rectangular projectingportions cylindrical portion 46 and the pair of rectangular projectingportions bodies shaft members - Each of the
slat supporting members 8 is interposed between, on the one hand, the pair oflink mechanisms slats 9 arranged parallel to each other to allow theslats 9 to be supported by the pair oflink mechanisms slat supporting members 8 has asupport 22 and asupport 42 which is connected to thesupport 22 by means of a fitting and securing means 40. Thesupport 22 has anarm portion 31 having a pair of shaft holes, i . e . , a pair of throughholes 30 in this embodiment, which are respectively provided in one end portion and the other end portion thereof (which are also the oneend portion 6 and theother end portion 7 of the slat supporting member 8), and in which theshaft portions 47 at one end portions of theshaft members link mechanisms shaft portion 36 formed integrally on one surface of thearm portion 31 and disposed in and outside thevertical frame 2 through the guide slit 16; and afitting projection 37 formed integrally with theshaft portion 36 and adapted to be fitted in afitting portion 60 of theslat 9. Thesupport 42 has anarm portion 35 having a pair of shaft holes, i.e., a pair of throughholes 34 in this embodiment, which are respectively provided in one end portion and the other end portion thereof (which are also the oneend portion 6 and theother end portion 7 of the slat supporting member 8), and in which theshaft portions 47 at the other end portions of theshaft members link mechanisms - Each of the
shaft members holes arm portions shaft portions 47 which are integrally provided on opposite end faces of thecylindrical portion 46 disposed in such a manner as to be sandwiched between thearm portion 31 and thearm portion 35. - The fitting and securing means 40 is adapted to connect the
support 22 and thesupport 42 so that the corresponding throughholes arm portions tubular portion 43 formed integrally on an opposite surface of thearm portion 31 to one surface thereof on which theshaft portion 36 is integrally formed, the hollow rectangulartubular portion 43 having a pair offitting openings 41, as well as a pair of engagingprojections 44 formed integrally on one surface of thearm portion 35 and adapted to engage thetubular portion 43 at itsfitting openings 41. - Each engaging
projection 44 has aprojection body 45 formed integrally on one surface of thearm portion 35 and adapted to be inserted and secured in thetubular portion 43, as well as apawl portion 48 formed integrally on a distal end of theprojection body 45 and adapted to engage thetubular portion 43 at itsfitting opening 41. The engagement of thepawl portion 48 with thetubular portion 43 at itsfitting opening 41 is effected in a snap-fit fashion making use of the resilient deflection of theprojection body 45. - The
support 22 including thetubular portion 43 is an integrally molded piece formed of a synthetic resin. Also, thesupport 42 including the pair of engagingprojections 44 is an integrally molded piece formed of a synthetic resin. - Each of the
slats 9 is supported at itsrespective end portions slat supporting mechanisms 50 each including the plurality ofslat supporting members 8 and the pair oflink mechanisms shaft members slats 9 has a plate-likecurved slat body 51 and the rectangularfitting portion 60 formed integrally with one surface of theslat body 51 in such a manner as to extend from theend portion 39 to theend portion 49 on the one surface of theslat body 51. Thefitting portion 60 is made hollow to allow thefitting projections 37 to fit therein. Theslats 9 are supported at theiropposite end portions 39 an 49 by theslat supporting mechanisms 50 on thevertical frame 2 side and thevertical frame 3 side so as to be parallel to each other in the opening P. Thefitting portion 60 need not be provided so as to extend from theend portion 39 to theend portion 49 on one surface of theslat body 51, and it suffices if thefitting portion 60 is provided on the one surface of theslat body 51 at at least each of theend portions - The raising and lowering
mechanism 10 for raising and lowering theslats 9 by means of theslat supporting mechanisms 50 includes thechain 52 disposed in each of thevertical frames mechanism 55 for connecting to the uppermostslat supporting member 8 theother end portion 54 of thechain 52 having oneend portion 53 which is a free end; a travelingunit 56 for causing thechain 52 to travel in directions A and B; and a preventingmechanism 57 for preventing the deflection of thechain 52 as thechain 52 travels in the directions A and B. - Since the
chain 52, the connectingmechanism 55, and the preventingmechanism 57 are respectively arranged in the same way on thevertical frame 2 side and thevertical frame 3 side, a detailed description will be given hereafter of thevertical frame 2 side. - The
chain 52 is disposed in theguide passages 17 so as not to be deflected, and its traveling in the directions A and B is guided by theguide passage 17. - The connecting
mechanism 55 includes a connectingplate 62 connected rotatably to thearm portion 35 by means of apin member 61 disposed concentrically with theshaft portion 36 of the uppermostslat supporting member 8, as well as aslider 64 secured to the connectingplate 62 by means of a pair ofpin members 63. Theslider 64 includes a slider body 65 and a pair of rollers 66 (only one is illustrated) which are supported rotatably by the slider body 65 by means of the pair ofpin members 63 and are disposed vertically movably in theother guide passage 17 sandwiched between oneguide passage 17 and theguide passage 18. Theother end portion 54 of thechain 52 is rotatably connected to the slider body 65 by means of apin member 67. - The traveling
unit 56 has anendless ball chain 71 for generating a traveling force for thechain 52 by a manual operation as well as a transmitting means 72 for transmitting the traveling force from theball chain 71 to thechain 52. - The transmitting means 72 includes a
pulley 74 around which theball chain 71 is wound and which is secured to arotating shaft 73; agear 75 secured to therotating shaft 73; agear 77 meshing with thegear 75 and secured to arotating shaft 76; agear 78 secured to therotating shaft 76; agear 80 meshing with thegear 78 and secured to arotating shaft 79; agear 82 meshing with thegear 80 and secured to arotating shaft 81; asprocket wheel 84 which is secured to oneend portion 83 of therotating shaft 81 and around which thechain 52 is wound; and abraking mechanism 85 for imparting fixed braking to the rotation of therotating shaft 81. - The
ball chain 71 wound around thepulley 74 is suspended on anindoor side 88 in an opening of a window or the like of a building where the window blind apparatus 1 is installed, in such a manner as to be manually operable. - The rotating
shafts bracket 91, and thebracket 91 is secured to an inner surface of an upper portion of thevertical frame body 14 of thevertical frame 2. - The
gears pulley 74 and transmitting it to therotating shaft 81. The rotatingshaft 81, to oneend portion 83 of which thesprocket wheel 84 disposed in thevertical frame body 14 is disposed is secured, is passed in theupper cover frame 13, and extends to the interior of the vertical frame body of thevertical frame 3. A sprocket wheel similar to thesprocket wheel 84 is also secured to the other end portion of therotating shaft 81 on thevertical frame 3 side. In the same way as thechain 52 disposed in thevertical frame 2, a chain disposed in thevertical frame 3 is wound around the sprocket wheel on the other end portion side of therotating shaft 81. - The
braking mechanism 85 includes anannular braking plate 93 disposed in ahousing 92 secured to thebracket 91; an annularbraking backing plate 94 secured to therotating shaft 81; and acoil spring 95 interposed between thehousing 92 and thebraking plate 93 and adapted to cause thebraking plate 93 to be resiliently pressed against thebraking backing plate 94 so as to be brought into frictional contact therewith. As a result of the frictional contact between the brakingplate 93 and thebraking backing plate 94, when theball chain 71 is manually caused to travel to rotate thepulley 74, thebraking mechanism 85 allows the rotatingshaft 81 to rotate, whereas when theball chain 71 is not manually caused to travel, thebraking mechanism 85 inhibits the rotation of therotating shaft 81 by means of thechain 52 and thesprocket wheel 84 due to the self-weight of theslats 9 and the like. - The preventing
mechanism 57 has chain guides 86 and 87 disposed around the outer periphery of thesprocket wheel 84 and secured to the inner surface of the upper portion of thevertical frame body 14 by means of a mountingplate 96. The chain guides 86 and 87 are adapted to ensure the meshing of thechain 52 with thesprocket wheel 84 by preventing the deflection of thechain 52 around thesprocket wheel 84. - In the raising and lowering
mechanism 10, if an operator manually causes theball chain 71 to travel in one direction, thepulley 74 rotates, which causes thesprocket wheel 84 to rotate by means of thegears chain 52 to travel in the direction A, for example. Then, the connectingmechanism 55 is raised while being guided by theguide passage 17 together with the raising of theend portion 54. As the connectingmechanism 55 is thus raised, the uppermostslat supporting member 8 having thearm portion 35 connected rotatably to the connectingmechanism 55 by means of thepin member 61 is also raised. As the uppermostslat supporting member 8 is thus raised, the lowerslat supporting members 8 which are connected to the uppermostslat supporting member 8 by the pair oflink mechanisms slat supporting member 8 located immediately below the uppermostslat supporting member 8. Consequently, theslats 9 supported by the respectiveslat supporting members 8 are also consecutively raised. Thus the raising and loweringmechanism 10 connected to the uppermostslat supporting member 8 is adapted to lift the uppermostslat supporting member 8 to consecutively raise theslats 9. - In addition, in the raising and lowering
mechanism 10, if the operator manually causes theball chain 71 to travel in the other direction, thepulley 74 rotates, which causes thesprocket wheel 84 to rotate by means of thegears chain 52 to travel in the direction B. Then, the connectingmechanism 55 is lowered while being guided by theguide passage 17 together with the lowering of theend portion 54. As the connectingmechanism 55 is thus lowered, the uppermostslat supporting member 8 having thearm portion 35 connected rotatably to the connectingmechanism 55 by means of thepin member 61 is also lowered. As the uppermostslat supporting member 8 is thus lowered, the lowerslat supporting members 8 which are connected to the uppermostslat supporting member 8 by the pair oflink mechanisms slat supporting member 8. Consequently, theslats 9 supported by the respectiveslat supporting members 8 are also consecutively lowered. Thus the raising and loweringmechanism 10 connected to the uppermostslat supporting member 8 is adapted to lower the uppermostslat supporting member 8 to consecutively lower theslats 9. - Although in this embodiment the rotating
shaft 73 is connected to therotating shaft 81 by means of the speed reducing mechanism consisting of thegears pulley 74 to therotating shaft 81, thepulley 74 may be secured to therotating shaft 81 to directly transmit the rotation of thepulley 74 to therotating shaft 81. In addition, instead of theball chain 71 or in addition to theball chain 71, an electric motor may be used. In that case, the output rotating shaft of the electric motor may be connected to therotating shaft 73, or the output rotating shaft of the electric motor may be used as the rotatingshaft 81, in which case an electric motor whose speed is controllable may be used, as required. - The
tilting mechanism 11 has thecylindrical projection 101 which is formed integrally on a surface of thearm portion 35 of the uppermostslat supporting member 8 opposite to the surface thereof on which the engagingprojections 44 are formed, so as to move together with the rising and lowering of the uppermostslat supporting member 8, as well as acam member 103 having aguide recess 102 attached to the guide-passage forming member 15 and communicating with theguide passage 19. - When the uppermost
slat supporting member 8 is raised due to the traveling of thechain 52 in the direction A, thetilting mechanism 11 causes theprojection 101 provided on the uppermostslat supporting member 8 to abut against thecam member 103 to guide theprojection 101 from theguide passage 19 to theguide recess 102, causing the uppermostslat supporting member 8 having thearm portion 35 with theprojection 101 formed thereon to rotate about theshaft portion 36 in an R1 direction. As a result, the belt-shapedbody 25 of thelink mechanism 5 is lifted up and raised relative to the belt-shapedbody 21 of thelink mechanism 4. In addition, the lowerslat supporting members 8 following the uppermostslat supporting member 8 are also made to undergo rotation similarly in the R1 direction by means of thelink mechanisms slats 9 are similarly rotated in the R1 direction. On the other hand, when the uppermostslat supporting member 8 is lowered due to the traveling of thechain 52 in the direction B, theprojection 101 is guided from theguide recess 102 to theguide passage 19, causing the uppermostslat supporting member 8 to rotate about theshaft portion 36 in an R2 direction. As a result, the belt-shapedbody 21 of thelink mechanism 4 is lifted up and raised relative to the belt-shapedbody 25 of thelink mechanism 5, thereby causing all theslats 9 to rotate similarly in the R2 direction. - The inhibiting means 12 includes the connecting
plate 121 disposed in a lower portion of the guide-passage forming member 15; acoil spring 124 serving as a resilient member having oneend portion 122 connected to the connectingplate 121 and theother end portion 123 secured to a lower end of the guide-passage forming member 15; a roller 126 attached rotatably to the connectingplate 121 by means of ashaft member 125 and disposed in theother guide passage 17 sandwiched between the oneguide passage 17 and theguide passage 18; and a pair of rollers 129 (only one is shown) attached rotatably to the connectingplate 121 by means ofshaft members 127 and 128 and disposed in theguide passage 18. The connectingplate 121, which is prevented from swinging by the pair ofrollers 129, is connected to thearm portion 35 of the lowermostslat supporting member 8 rotatably in the R1 and R2 directions by means of a shaft member (not shown) disposed concentrically with theshaft portion 36 of the lowermostslat supporting member 8. - As the connecting
plate 121 is raised along theguide passages slat supporting member 8, the inhibitingmeans 12 is adapted to pull the connectingplate 121 downward by the resiliency of thecoil spring 124, thereby resiliently preventing the lifting up of the lowermostslat supporting member 8 by more than a fixed amount. - The
closing plate 141 is provided uprightly on thebottom frame 14a to close a gap occurring between thelowermost slat 9 and thebottom frame 14a in the state in which the opening P is completely closed (the state shown in Fig. 13). - In the above-described window blind apparatus 1, in the state in which the opening P is open, the
projection 101 is disposed in theguide passage 19, and the belt-shapedbodies slats 9 are superposed one on top of another (stacked) in a lower position, as shown in Fig. 11. At the time of closing the opening P as theball chain 71 is manually caused to travel in one direction to cause thechain 52 to travel in the direction A, the uppermostslat supporting member 8 first starts to be raised. As the uppermostslat supporting member 8 is thus raised, the belt-shapedbodies link mechanisms slat supporting members 8 following the uppermostslat supporting member 8 to start to be raised. Thereafter, the ensuingslat supporting members 8 are consecutively raised in a similar manner, and theslats 9 are also consecutively raised at the same time. When theprojection 101 is raised while being guided by theguide passage 19, theslats 9 are held in a substantially horizontally tilted state, with the result that the opening P is closed by theslats 9 in the form of a rattan blind, as shown in Figs. 1 and 2. - As the
chain 52 is caused to travel further in the direction A, the belt-shapedbodies slat supporting member 8 is slightly raised against the resiliency of thecoil spring 124 by means of the belt-shapedbodies projection 101 faces theguide recess 102 and abuts against thecam member 103, the uppermostslat supporting member 8 starts to be rotated in the R1 direction, and theupper end portion 32 of the belt-shapedbody 25 comes to be lifted more than theupper end portion 28 of the belt-shapedbody 21. Consequently, theuppermost slat 9 is rotated in the R1 direction, and the rotation of the uppermostslat supporting member 8 is transmitted to the lowerslat supporting members 8 by means of the belt-shapedbody 21 and the belt-shapedbody 25, thereby holding all theslat supporting members 8 andslats 9 in a substantially vertically tilted state, as shown in Figs. 13 and 14. As a result, the opening P is fully closed by theslats 9. - When the opening P is opened, the
ball chain 71 is manually operated in the opposite direction to the one described above, and theprojection 101 is guided from theguide recess 102 to theguide passage 19, consecutively deflecting the belt-shapedbodies slat supporting member 8 is lowered. - With the above-described window blind apparatus 1, since the raising and lowering
mechanism 10 is adapted to raise and lower theslats 9 by means of the uppermostslat supporting member 8, the stack of theslats 9 can be disposed in the lower portion of the opening P in the completely open state of the opening P, as shown in Fig. 11. As a result, when the opening P is completely open, daylighting can be provided without being hampered by theslats 9, and a sense of openness can be sufficiently obtained when the opening is open. Moreover, since thelink mechanisms bodies shaft members bodies bodies link mechanisms bodies shaft members slats 9. - In addition, according to the window blind apparatus 1, the
arm portion 31 has in its one end portion and other end portion the pair of throughholes 30 in which theshaft portions 47 at one end portions of theshaft members link mechanisms arm portion 35 has in its one end portion and other end portion the pair of throughholes 34 in which theshaft portions 47 at the other end portions of theshaft members link mechanisms arm portions holes arm portions shaft members link mechanisms shaft members bodies bodies slats 9 and support theslats 9 properly. - In addition, according to the window blind apparatus 1, when the opening P is completely closed, the gap occurring below the
lowermost slat 9 can be closed by theclosing plate 141. As a result, the entry or the like of rainwater through this gap can be prevented, and a completely closed state of the opening P can be fully ensured. - Furthermore, since the engagement of the
pawl portion 48 with thetubular portion 43 at itsfitting opening 41 is effected in a snap-fit fashion making use of the resilient deflection of theprojection body 45, the mutual engagement between thesupport 22 and thesupport 42 by means of the fitting means 40 can be effected simply, and the assembly and maintenance of theslat supporting members 8 can be effected in a short time. - In the above-described embodiment, instead of the
chain 52 with ends having theend portions sprocket wheel 84, and the endless chain is wound around and trained between the two sprocket wheels. The preventingmechanism 57 can be omitted if such an endless chain is used. In addition, a timing belt or the like may be used instead of thechain 52. In the case where the timing belt is used, it suffices if a toothed pulley is used instead of thesprocket wheel 84. - In addition, as described above, the fitting and securing means 40 is arranged such that the hollow rectangular
tubular portion 43 having thefitting opening 41 is integrally formed on the other surface of thearm portion 31, while the pair of engagingprojections 44 are integrally formed on one surface of thearm portion 35. Instead of this arrangement, the fitting and securing means 40 may be arranged such that the hollow rectangulartubular portion 43 having thefitting opening 41 is integrally formed on one surface of thearm portion 35, while the pair of engagingprojections 44 for engaging thetubular portion 43 in thefitting opening 41 are integrally formed on the other surface of thearm portion 31. - Furthermore, as described above, the fitting and securing means 40 is formed by the pair of engaging
projections 44 for engaging thetubular portion 43 at the pair offitting openings 41. In stead of this arrangement, as shown in Fig. 15, the fitting and securing means 40 may be formed by comprising one engagingprojection 152 formed integrally on one surface of thearm portion 35 and adapted to engage thetubular portion 43 at onefitting opening 151, and a pair offitting projections 153 disposed with the engagingprojection 152 located therebetween and adapted to be fitted in thetubular portion 43. In this case, the engagingprojection 152 has aprojection body 155 for being inserted and secured in thetubular portion 43, as well as apawl portion 156 formed integrally on a distal end of theprojection body 155 and adapted to engage thetubular portion 43 at itsfitting opening 151. The engagement of thepawl portion 156 with thetubular portion 43 at itsfitting opening 151 is effected in a snap-fit fashion making use of the resilient deflection of theprojection body 155.
Claims (12)
- A blind apparatus comprising:a first link mechanism and a second link mechanism juxtaposed to each other;a plurality of slat supporting members each having one end portion connected to said first link mechanism and another end portion connected to said second link mechanism;a plurality of slats respectively supported by said slat supporting members;a raising and lowering mechanism for raising and lowering said slats by means of an uppermost one of said slat supporting members;a tilting mechanism for tilting said slats by causing said first and said second link mechanisms to undergo relative positional changes as said slats are raised or lowered by said raising and lowering mechanism; andinhibiting means for inhibiting the raising of a lowermost one of said slats,each of said first and said second link mechanisms having a flexible belt-shaped body and a plurality of shaft members which are secured to said belt-shaped body at fixed intervals and are connected to each other by said belt-shaped body,said shaft member of said first link mechanism and said shaft member of said second link mechanism being respectively rotatably fitted in the one end portion of each of said slat supporting members and the other end portion of each of said slat supporting member,said raising and lowering mechanism having a flexible traveling body, a connecting mechanism which connects an end portion of said traveling body to the uppermost one of said slat supporting members and is moved by the traveling of said traveling body, and a traveling device for causing said traveling body to travel,said tilting mechanism having a projection provided on the uppermost one of said slat supporting member so as to move together with the rising and lowering of the uppermost one of said slat supporting members and a cam member against which said projection abuts as the uppermost one of said slat supporting members is raised,said inhibiting means including a connecting plate which is connected rotatably to the lowermost one of said slat supporting members and is vertically movable and a resilient member having one end portion connected to said connecting plate and another end portion secured.
- The blind apparatus according to claim 1, further comprising:guide-passage forming members for forming a guide passage for guiding the traveling of said traveling body and the vertical movement of said connecting mechanism, a guide passage for guiding the raising and lowering of said projection, and a guide passage for guiding the vertical movement of said connecting plate.
- The blind apparatus according to claim 1 or 2, further comprising:a closing plate for closing a gap occurring below the lowermost one of said slat supporting members.
- The blind apparatus according to any one of claims 1 to 3, wherein each of said slat supporting member is comprised of:a first support including a first arm portion having a pair of shaft holes which are respectively provided in one end portion and another end portion thereof, and in which one end portions of a pair of said shaft members of said link mechanisms are respectively inserted and secured rotatably, a shaft portion formed integrally on one surface of said first arm portion, and a fitting projection formed integrally with said shaft portion and adapted to be fitted in said fitting portion of said slat; anda second support including a second arm portion having a pair of shaft holes which are respectively provided in one end portion and another end portion thereof, and in which another end portions of said shaft members of said link mechanisms are respectively inserted and secured rotatably,said first support and said second support being connected to each other by means of fitting and securing means such that corresponding ones of the shaft holes in the one end portions and the other end portions of said first arm portion and said second arm portion become coaxial.
- The blind apparatus according to claim 4, wherein said fitting and securing means includes a tubular portion formed integrally on an opposite surface of said first arm portion to one surface thereof and having a fitting opening, and an engaging projection formed integrally on one surface of said second arm portion and adapted to engage said tubular portion at the fitting opening.
- The blind apparatus according to claim 4, wherein said fitting and securing means includes a tubular portion formed integrally on one surface of said second arm portion and having a fitting opening, and an engaging projection formed integrally on an opposite surface of said first arm portion to one surface thereof and adapted to engage said tubular portion at the fitting opening.
- The blind apparatus according to claim 5 or 6, wherein said engaging projection has a projection body adapted to be inserted and secured in said tubular portion, as well as a pawl portion formed integrally on a distal end of said projection body and adapted to engage said tubular portion at the fitting opening, and engagement of said pawl portion with said tubular portion at the fitting opening is effected in a snap-fit fashion making use of the resilient deflection of said projection body.
- The blind apparatus according to any one of claims 4 to 7, wherein each of said first support and said second support is an integrally molded piece made of a synthetic resin.
- The blind apparatus according to any one of claims 1 to 8, wherein each of said belt-shaped bodies is passed through each of said shaft members and is fabricated from one continuous belt-shaped member.
- The blind apparatus according to any one of claims 1 to 9, wherein each of said belt-shaped bodies is fabricated from a belt of a woven fabric or a knit fabric of yarn made of a synthetic resin such as polyester, or a belt of a nonwoven fabric made of a synthetic resin.
- The blind apparatus according to any one of claims 1 to 10, wherein each of said shaft members is formed by an integrally molded piece made of a synthetic resin and including a cylindrical portion and a pair of shaft portions respectively disposed on opposite end faces of the cylindrical portion, and is rotatably fitted at the shaft portion thereof in the corresponding shaft hole of each of said arm portions, each of said belt-shaped bodies being integrally secured to the cylindrical portion and passed through the cylindrical portion.
- The blind apparatus according to claim 11, wherein each of said shaft members is formed by an integrally molded piece made of a synthetic resin and further having a pair of rectangular projecting portions disposed at symmetrical positions with respect to an axis of the cylindrical portion, and each of said belt-shaped bodies is integrally secured to the cylindrical portion and the pair of rectangular projecting portions, and is passed through the cylindrical portion and the pair of rectangular projecting portions.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002322742A JP3885713B2 (en) | 2002-11-06 | 2002-11-06 | Blind device |
JP2002322742 | 2002-11-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1418307A1 true EP1418307A1 (en) | 2004-05-12 |
EP1418307B1 EP1418307B1 (en) | 2006-06-28 |
Family
ID=32105460
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03021681A Expired - Lifetime EP1418307B1 (en) | 2002-11-06 | 2003-09-29 | Blind apparatus |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1418307B1 (en) |
JP (1) | JP3885713B2 (en) |
KR (1) | KR101031638B1 (en) |
CN (1) | CN100507198C (en) |
DE (1) | DE60306475T2 (en) |
TW (1) | TWI326326B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007118488A1 (en) * | 2006-04-13 | 2007-10-25 | Lamellanet Ag | Slatted blind |
WO2010053302A3 (en) * | 2008-11-07 | 2010-08-12 | Park Jeong-Won | Multipurpose window |
ITMI20120528A1 (en) * | 2012-03-30 | 2013-10-01 | Francesca Saullo | COMMAND DEVICE FOR A SHUTTER BLIND OF A SHUTTER |
WO2015170275A1 (en) | 2014-05-09 | 2015-11-12 | Renson Sunprotection-Projects Nv | Drive system |
US10094121B2 (en) * | 2014-10-16 | 2018-10-09 | Renson Sunprotection-Screens Nv | Slat device |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100715535B1 (en) * | 2005-04-13 | 2007-05-08 | 삼성전자주식회사 | Air conditioner |
JP4862439B2 (en) * | 2006-03-08 | 2012-01-25 | オイレスEco株式会社 | Blind device |
KR100918787B1 (en) * | 2006-09-29 | 2009-10-01 | 이덕률 | Traction type louver system |
JP2013113054A (en) * | 2011-11-30 | 2013-06-10 | Sekisui House Ltd | Vertical blind device |
DE102012104365A1 (en) * | 2012-05-21 | 2013-11-21 | Ernst Hommer | Slat construction for building installations |
JP5953983B2 (en) * | 2012-06-28 | 2016-07-20 | オイレスEco株式会社 | Blind device |
FR3058445B1 (en) * | 2016-11-10 | 2020-07-17 | Flexoma | DEVICE FOR HANDLING A BAY OCCULTATION SYSTEM AND OCCULTATION INSTALLATION USING SUCH A DEVICE |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08326445A (en) * | 1995-03-28 | 1996-12-10 | Oiles Ind Co Ltd | Device for blind |
US5584331A (en) * | 1995-11-29 | 1996-12-17 | Lin; Kuo-Chung | Shutter |
EP0890703A2 (en) * | 1997-07-08 | 1999-01-13 | Nyffenegger Storenfabrik und Metallbau AG | Lamellar blind and building with a lamellar blind |
EP1243744A1 (en) * | 2001-03-19 | 2002-09-25 | Dieter Niemann | Venetian blind drawn upwardly |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0431991Y2 (en) | 1986-08-12 | 1992-07-31 | ||
JPH07324566A (en) * | 1994-06-01 | 1995-12-12 | Oiles Ind Co Ltd | Blind shutter |
JP3433557B2 (en) * | 1995-02-02 | 2003-08-04 | オイレス工業株式会社 | Blind equipment |
JP3829446B2 (en) | 1997-11-26 | 2006-10-04 | オイレスEco株式会社 | Blind device |
-
2002
- 2002-11-06 JP JP2002322742A patent/JP3885713B2/en not_active Expired - Lifetime
-
2003
- 2003-09-26 TW TW092126669A patent/TWI326326B/en not_active IP Right Cessation
- 2003-09-29 EP EP03021681A patent/EP1418307B1/en not_active Expired - Lifetime
- 2003-09-29 DE DE60306475T patent/DE60306475T2/en not_active Expired - Lifetime
- 2003-09-29 KR KR1020030067474A patent/KR101031638B1/en not_active IP Right Cessation
- 2003-09-29 CN CNB031272320A patent/CN100507198C/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH08326445A (en) * | 1995-03-28 | 1996-12-10 | Oiles Ind Co Ltd | Device for blind |
US5584331A (en) * | 1995-11-29 | 1996-12-17 | Lin; Kuo-Chung | Shutter |
EP0890703A2 (en) * | 1997-07-08 | 1999-01-13 | Nyffenegger Storenfabrik und Metallbau AG | Lamellar blind and building with a lamellar blind |
EP1243744A1 (en) * | 2001-03-19 | 2002-09-25 | Dieter Niemann | Venetian blind drawn upwardly |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007118488A1 (en) * | 2006-04-13 | 2007-10-25 | Lamellanet Ag | Slatted blind |
WO2010053302A3 (en) * | 2008-11-07 | 2010-08-12 | Park Jeong-Won | Multipurpose window |
US8555948B2 (en) | 2008-11-07 | 2013-10-15 | Jeong-Won Park | Multipurpose window |
ITMI20120528A1 (en) * | 2012-03-30 | 2013-10-01 | Francesca Saullo | COMMAND DEVICE FOR A SHUTTER BLIND OF A SHUTTER |
WO2013144000A1 (en) * | 2012-03-30 | 2013-10-03 | Franca Saullo | Device for controlling the slats of a blind with adjustable slats |
WO2015170275A1 (en) | 2014-05-09 | 2015-11-12 | Renson Sunprotection-Projects Nv | Drive system |
US10094121B2 (en) * | 2014-10-16 | 2018-10-09 | Renson Sunprotection-Screens Nv | Slat device |
Also Published As
Publication number | Publication date |
---|---|
KR20040040340A (en) | 2004-05-12 |
CN1499040A (en) | 2004-05-26 |
KR101031638B1 (en) | 2011-04-27 |
TW200408760A (en) | 2004-06-01 |
DE60306475D1 (en) | 2006-08-10 |
JP2004156293A (en) | 2004-06-03 |
JP3885713B2 (en) | 2007-02-28 |
EP1418307B1 (en) | 2006-06-28 |
DE60306475T2 (en) | 2007-02-01 |
TWI326326B (en) | 2010-06-21 |
CN100507198C (en) | 2009-07-01 |
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