WO2011138960A1 - 横型ブラインド - Google Patents
横型ブラインド Download PDFInfo
- Publication number
- WO2011138960A1 WO2011138960A1 PCT/JP2011/060586 JP2011060586W WO2011138960A1 WO 2011138960 A1 WO2011138960 A1 WO 2011138960A1 JP 2011060586 W JP2011060586 W JP 2011060586W WO 2011138960 A1 WO2011138960 A1 WO 2011138960A1
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- WO
- WIPO (PCT)
- Prior art keywords
- lifting
- cord
- slat
- cords
- head box
- Prior art date
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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
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
- E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
- E06B9/303—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable with ladder-tape
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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
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/28—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable
- E06B9/30—Lamellar or like blinds, e.g. venetian blinds with horizontal lamellae, e.g. non-liftable liftable
- E06B9/32—Operating, guiding, or securing devices therefor
- E06B9/322—Details of operating devices, e.g. pulleys, brakes, spring drums, drives
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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
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B9/26—Lamellar or like blinds, e.g. venetian blinds
- E06B9/38—Other details
- E06B9/382—Details of ladder-tapes or ladder chains, e.g. buckles for local shortening of tapes
-
- 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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/62—Counterweighting arrangements
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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
- E06B9/56—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor
- E06B9/78—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor for direct manual operation, e.g. by tassels, by handles
- E06B2009/785—Operating, guiding or securing devices or arrangements for roll-type closures; Spring drums; Tape drums; Counterweighting arrangements therefor for direct manual operation, e.g. by tassels, by handles by belts, straps, bands, tapes, cords, tassels
Definitions
- the present invention relates to a horizontal blind in which a lifting cord is disposed at a position offset from the longitudinal center of the slat.
- a raising and lowering cord for raising and lowering the slats passes through the raising and lowering cord insertion holes formed at the center of the slats in the longitudinal direction and passes through each slat
- one end of the lifting cord is connected to a bottom rail provided below the slat, and the slat is raised and lowered by raising and lowering the bottom rail with the lifting cord.
- Patent Literature 1 and Patent Literature 2 horizontal blinds disclosed in Patent Literature 1 and Patent Literature 2 are known as those in which the lifting and lowering cords are disposed at a position offset from the center of the slat in the front-rear direction.
- side slats are formed with side edge notches in which the vertical cords on both sides engage, and positioning of the slats in the longitudinal direction by engagement of the vertical cords on both sides and the notches
- at least one lifting cord is positioned on one side in the front-rear direction of the horizontal blind, and the other lifting cords are positioned on the opposite side in the front-rear direction of the horizontal blind, and these lifting cords are ladder cords
- the upper and lower direction cords are attached to each other, and the loops extending from the upper and lower direction cords are respectively inserted into the loops to connect one end to the bottom rail.
- the other end of the lifting cord is guided to one end in the longitudinal direction by a guide roller or the like in the head box, and led out to the outside through the stopper device, and the lifting cord pulled out from the head box is pulled down.
- the bottom rail ascends, and the bottom rail convolves the slats sequentially from the bottom, while operating the elevating cord and releasing the stopper device lowers them by the weight of the bottom rail and the slat.
- the lifting cord is located at the side edge of the slat, and a hole through which the lifting cord is inserted is not formed in the slat, so that light leakage at the time of shielding can be prevented.
- the bottom rails can be prevented from tilting by distributing the lifting cords in the front-rear direction.
- the middle cord portion of the ladder-like support cord is constituted by two parallel cords vertically and at the side edge of the position supported by the ladder-like support cord of the slat,
- a lifting cord for raising and lowering the slat is attached to the vertical cord part of the ladder-like support cord outside one of the slats It was set up.
- the slats are held by the middle step cords crossing vertically, and U-shaped notches formed in both side edges of the slats Since the crossover portion is engaged, horizontal movement of the slat can be restricted.
- the present invention is intended to solve such problems, and a first object is to operate the lifting cord for lifting and lowering the slat by elevating the cord at a position offset from the center of the slat in the longitudinal direction.
- An object of the present invention is to provide a horizontal blind that can reduce the load.
- the second object is, in addition to the first object, to provide a horizontal blind that can reliably prevent the slat from shifting.
- the present invention supports a rotary shaft rotatably supported in a head box, a plurality of ladder cords tilting in synchronization with the rotation of the rotary shaft, and supports in alignment with the ladder cords
- a horizontal blind provided with a large number of slats and a plurality of lifting cords capable of lifting and lowering the slats, the lifting cords being disposed at a position offset from the longitudinal center of the slats,
- a plurality of lifting drums that rotate in conjunction with rotation of the rotating shaft, one end of the lifting cord being connected to the lifting drum so as to be able to wind and unwind; At least one lifting cord is introduced into the head box from one side in the longitudinal direction of the head box, and another lifting cord is introduced into the head box from the other side in the longitudinal direction of the head box, All the lifting cords introduced into the head box from different positions in the front-rear direction of the head box are wound in the same direction by the lifting drum to which one end is
- the present invention When manually rotating the rotation shaft that rotationally drives the elevating drum by enabling the elevating drum to wind and unwind the elevating cords respectively introduced from different positions in the front-rear direction of the head box, the elevating cord is directly pulled Since the operation load is reduced as compared with the case of performing the lowering operation, the present invention can be applied to a blind having a large product size and a heavy weight. In addition, it is possible to rotate the elevating drum by electrically rotating the rotation shaft. In this case, since it is not necessary to manually wind and unwind the lifting cord on the lifting drum, the operation is easy, and it is difficult to manually operate, such as at an attachment position which can not be easily reached. It can also be applied to certain blinds.
- the elevating cords are introduced from different positions in the front-rear direction of the head box, the elevating cords can be disposed at a position offset from the center of the slat in the front-rear direction. It can balance the whole slat. And since all the raising / lowering drums rotate in the same direction by the same rotating shaft and take up the raising / lowering cord in the same direction, a structure can be simplified.
- Each elevating drum is composed of a drum unit to which one end of the elevating cord is connected so as to be able to wind and unwind, and a drum support rotatably supporting the drum unit.
- a lifting cord guide can be provided for lowering to a position offset from the direction center. As a result, the lifting cord can be reliably dropped to a position offset from the longitudinal center of the slat.
- the drum receiver further includes a ladder cord guide portion that regulates that the vertical cords before and after the ladder cord do not open in the front-back direction by a predetermined amount or more, and the lifting cord guide portion is formed outside the ladder cord guide portion in the front-rear direction Can be
- the lifting cord can be disposed at a position offset from the center of the slat in the front-rear direction without exerting an excessive force on the ladder cord.
- At least one notch is formed in the side edge of the slat, one of the vertical cords before and after the ladder cord is disposed along the at least one notch, and at least one notch is formed.
- the lifting cord may be disposed to pass between the notch and the vertical cord.
- the lifting cords other than the lifting cords inserted between the notch and the vertical cord may be disposed along the vertical cords before and after the ladder cord outside the side edge of the slat. This makes it possible to easily insert the slat during assembly.
- the notch is formed only on one side edge of the slat and faces upward of the sloping slat when raising the slat, and at the side edge facing downward of the sloping slat when lowering the slat. It can be formed. As a result, there is no risk that the elevating cord and the rudder coat enter the notch together and the corner of the notch is caught when the slat is elevated, and a smooth elevating operation can be performed.
- At least three lifting drums in the left and right direction of the head box On the left and right outer lifting drums, the lifting cords introduced into the head box from one side in the front-rear direction of the head box and turned toward the other side through the lifting cord guide portions are connected, A lifting cord introduced into the headbox from the other side in the front-rear direction of the headbox and guided upward through the lifting cord guide may be connected to the at least one inner lifting drum.
- the lifting drum on the inner side is configured such that the lifting cord is guided upward through the lifting cord guide portion, so that the load can be made difficult to apply.
- the horizontal blind tends to apply more traction to the inner lifting drum than to the left and right outer lifting drums in order to raise and lower the bottom rail without tilting left and right.
- the at least one inner lifting drum is connected to a lifting cord which is introduced into the head box from one side in the front-rear direction of the head box and is turned toward the other side through the lifting cord guide portion,
- a lifting cord introduced into the head box from the other side in the front-rear direction of the head box and guided upward through the lifting cord guide can be connected to the left and right outer lifting drums.
- the operation load of the lifting cord for lifting and lowering the slat can be reduced.
- FIG. 1 is a side cross-sectional view of the first lifting drum portion at the time of the slat horizontal / full opening according to the first embodiment
- (b) and (c) are the first at the time of the slat closing / raising and lowering according to the first embodiment 1 is a side sectional view of a lifting drum portion.
- (A) is a side sectional view of the second lifting and lowering drum portion at the time of horizontal slat according to the first embodiment
- (b) and (c) are the second lifting and lowering at the time of the slat fully closed and lifting according to the first embodiment.
- It is a side sectional view of a drum portion.
- It is a fragmentary sectional side view near the head box showing the 1st raising / lowering drum which concerns on 1st Embodiment.
- It is front explanatory drawing of the horizontal blind which shows the space
- FIG. 2 is a side sectional view of a lifting drum portion.
- FIG. 1 It is a top view which shows the state of the raising / lowering cord of 2nd Embodiment, a ladder cord, and a notch part.
- A is a partial perspective view which shows the mode of the notch part vicinity in the horizontal state in the slat which concerns on 2nd Embodiment
- (b) is a part which shows the mode in the notch part at the time of descent of slat which concerns on 2nd embodiment.
- (c) is a fragmentary perspective view showing a situation of the notch part neighborhood at the time of the slat rise concerning a 2nd embodiment.
- It is a top view which shows the inside of the head box which concerns on 3rd Embodiment.
- It is a partial perspective view showing interference with a notch and a ladder cord.
- First Embodiment 1 to 10 show a first embodiment of the present invention. This embodiment is particularly suitable for application to heavy products.
- an endless operation code (operation portion) 14 is suspended from one end of a head box 10 fixed to a window frame or the like by a bracket 11, and the operation code 14 is disposed in the head box 10. It can be wound around a driven pulley (operation portion) 15 and can be rotationally driven.
- the rotation of the pulley 15 can be transmitted to the rotating shaft 12 rotatably supported in the head box 10 via a clutch. By the clutch, the rotation from the rotating shaft 12 is blocked, and only the rotation from the pulley 15 is transmitted to the rotating shaft 12.
- Three elevating drums 20 that rotate in conjunction with the rotation of the rotating shaft 12 are provided at intervals in the left-right direction of the head box 10.
- Ladder cords 16 are respectively suspended below the head box 10 from the arrangement position of each lifting drum 20, and each ladder cord 16 tilts in conjunction with the rotation of a predetermined range angle of the rotary shaft 12 .
- the respective ladder cords 16 are erected between the front and rear vertical cords 16a and 16b at the positions separated by a predetermined distance in the vertical direction, and the vertical cords 16a and 16b at the front and rear direction of the head box 10 And an intermediate code 16c.
- Each middle row code 16c further comprises a pair of slightly spaced upper and lower cords.
- the ladder cords 16 are formed by inverting the upper and lower cords of the middle cords 16c in the middle to form a pair of crossing parts, and inserting the slats 18 between the crossing parts to form a large number of slats.
- the lower end of the ladder cord 16 is fixed to a bottom rail 24 disposed below the slat 18 located at the lowermost level.
- One end of a lifting cord 22 is connected to each lifting drum 20 so as to be capable of winding and unwinding.
- the other end of the lifting cord 22 hangs down from the head box 10, passes through a position offset from the longitudinal center of the slat, and is connected to the bottom rail 24.
- the lifting drum 20 comprises a drum portion 26 to which one end of a lifting cord 22 is connected so as to be able to wind and unwind, and a drum receiver 28 rotatably supporting the drum portion 26 and fixed to the head box 10 Be done.
- the drum receiver 28 has ladder cord guide portions 28a and 28b for restricting that the vertical cords 16a and 16b before and after the ladder cord 16 are inserted respectively and the interval between the vertical cords 16a and 16b before and after does not open in the front-back direction It is formed.
- the raising and lowering cords 22 are inserted outside the ladder cord guide portions 28a and 28b of the drum receiver 28 in the front-rear direction of the head box 10, and the first raising and lowering cord guide portions for guiding the arrangement of the raising and lowering cords 22 respectively 28c and a second lifting code guide 28d are formed respectively.
- the lifting cord guides 28c and 28d can reliably lower the lifting cord 22 to a position offset from the longitudinal center of the slat 18, and the ladder cord guides 28a and 28b can not force the ladder cord 16
- the lifting cord 22 can be disposed at a position offset from the longitudinal center of the slat 18 without applying any force. Further, even when the diameter of the elevating drum 20 is large, the distance between the vertical cords 16a and 16b before and after the ladder cord 16 can be narrowed by the ladder cord guide portions 28a and 28b to improve the rotation of the slat 18.
- the arrangement of the lifting cord 22 arranged at the center in the left-right direction of the head box 10 and the connection to the lifting drum 20 are as in the first lifting cord 22a and the first lifting drum 20a shown in FIGS. There is.
- the first lifting cord 22a is disposed along the rear vertical cord 16b of the front and rear vertical cords 16a and 16b, and is a loop-like portion projecting further backward from the connecting portion of the vertical cord 16b with the middle cord 16c. 16d is inserted. After the first end of the first lifting cord 22a is guided upward through the first lifting cord guide portion 28c on the rear side of the drum receiver 28, the drum of the first lifting drum 20a is taken up in one direction. It is connected to the part 26.
- the arrangement of the lifting cord 22 disposed on the outer side in the left-right direction of the head box 10 and the connection to the lifting drum 20 are as in the second lifting cord 22b and the second lifting drum 20b shown in FIGS. ing.
- the second lifting cord 22b is disposed along the front vertical cord 16a, and is inserted into a loop-shaped portion 16e that protrudes further forward from the connecting portion of the vertical cord 16a with the middle cords 16c. Then, one end of the second lifting cord 22b is turned toward the rear through the second lifting cord guide portion 28d on the front side of the drum receiver 28, and is then wound in the same direction as the first lifting cord 22a. As such, it is connected to the drum unit 26 of the second lifting drum 20b.
- first raising and lowering cords 22a and the second raising and lowering cords 22b are moved to the respective raising and lowering drums 20a and 20b by the first raising and lowering drum 20a and the second raising and lowering drum 20b which rotate in the same direction by the rotation of the rotary shaft 12. It is simultaneously wound and unwound.
- the intervals B between the first lifting cord 22a located inside in the left-right direction and the second lifting cords 22b located outside in the left-right direction are equal.
- the distance A (feathering dimension) between each second lifting cord 22b and the end of the slat 18 closest to the second lifting cord 22b is constant, and the distance A is smaller than the distance B, respectively.
- At least one notch 18a is formed on the rear side edge of the slat 18, and the crossing portion of the middle step cord 16c of the ladder cord 16 is hooked on the notch 18a.
- the horizontal displacement of the slat 18 is prevented.
- the pulley 15 is rotationally driven by pulling down the front side of the operation cord 14 from the horizontal fully open state of the slat 18 to rotate the rotary shaft 12 as shown in FIGS. 3 (a) and 4 (a). Rotate in the counterclockwise direction.
- FIGS. 3C and 4C the vertical cord 16b on the rear side ascends, the vertical cord 16a on the front side descends, the ladder cord 16 tilts, and each slat 18 Incline. This allows the slat to be fully closed.
- the first lifting cord 22a is positioned further to the rear than the rear vertical cord 22b, and is shown in FIGS. 4B and 4C.
- the second lifting cord 22b is positioned further to the front than the front vertical cord 16a, it does not contact the sloping slat 18 and does not disturb the slat rotation.
- the operator pulls the front side of the operation cord 14 down and continues even after the slat 18 is fully closed and the rudder cord 16 can not rotate further.
- the first lifting drum 20a winds the first lifting cord 22a
- the second lifting drum 20b winds the second lifting cord 22b.
- the first lifting and lowering cords 22a move up via the first lifting and lowering cord guide portions 28c
- the second lifting and lowering cords 22b move up via the second lifting and lowering cord guide portions 28d.
- the first lifting cord 22a and the second lifting cord 22b can move the bottom rail 24 upward, and accordingly, the slat 18 can be folded up and raised.
- the operation is performed to pull back the rear side of the operation code 14, and the slat 18 is fully closed and continues even after the rudder cord 16 can not rotate further.
- the first lifting drum 20a and the second lifting drum 20b unroll the first lifting cord 22a and the second lifting cord 22b, respectively.
- the first lifting cord 22a is lowered via the first lifting cord guide portion 28c
- the second lifting cord 22b is lowered via the second lifting cord guide portion 28d.
- the first lifting cord 22a and the second lifting cord 22b can lower the bottom rail 24, and the slat 18 can be lowered accordingly.
- the lifting cords 22a and 22b are wound or unwound on the lifting drums 20a and 20b by the operation of the operation cord 14, and the slat 18 is lifted and lowered, so that the operating load can be reduced.
- the lifting cord 22 can be disposed at a position offset from the center of the slat 18 in the front-rear direction, and the entire slat 18 and bottom rail 24 can be balanced at the time of lifting. Since the lifting cords 22 are arranged along the vertical cords 16a and 16b of the ladder cord 16, there is no need to provide the lifting cord insertion holes in the slats 18, and light leakage can be prevented when the slats are fully closed.
- the load applied to the lifting cords 22a and 22b is a central portion that requires a large amount of traction force to raise and lower the bottom rail 24 horizontally without being inclined to the left and right depending on the relationship with the wing release dimensions of the slats 18.
- the resistance applied to the first lifting cord 22a decreases, and the second lifting cord 22b
- the resistance of the second lifting cord 22b is increased by rotating and bending the wiring direction via the second lifting cord guide 28d having a large bending resistance, so the load on the lifting cords 22a and 22b is balancedly distributed. And the durability as a product can be improved.
- the number of lifting drums 20 and the number of lifting cords 22 are three. However, the number is not limited thereto, and two or four or more can be used.
- one of the lifting cords 22 and lifting drums 20 is the first lifting cord 22a and the first lifting drum 20a
- the other lifting cord 22 and lifting drum 20 is the second lifting cord 22b.
- the second lifting drum 20b is the two lifting cords 22 and the two lifting drums 20 disposed inside the center of the head box 10 in the left-right direction.
- the two lifting cords 22 and the two lifting drums 20 disposed outside the end in the left-right direction may be the second lifting cord 22 b and the second lifting drum 20 b.
- FIGS. 11 to 16 This embodiment is particularly suitable for reliably preventing the horizontal displacement of the slats 18.
- the description of the same configuration as that of the first embodiment will be omitted, and the same members will be denoted by the same reference numerals as those of the first embodiment.
- the configuration of the first lifting and lowering drum 20a, the first lifting and lowering cord 22a, and the vertical cord 16b on the rear side, which are disposed inside the left and right direction center of the head box 10 in the first embodiment, is shown in FIG.
- the second lifting drum 20b, the second lifting cord 22b, and the front vertical cord 16a, which are disposed outside the horizontal blind in the left-right direction and are disposed outside the end in the left-right direction in the first embodiment, are shown in FIG.
- one or more notches 18 a are formed on the rear side edge of the slat 18, and in the notches 18 a of the one or more slats 18, the first lifting cord 22 a Is inserted from the middle in the vertical direction of the vertical cord 16b to the lower end as shown in FIG. 13, FIG. 15 and FIG. 16 into the notch 18a so as to be inserted between the notch 18a and the vertical cord 16b.
- the portion from the middle position in the vertical direction of the vertical cord 16b to the first lifting drum 20a is arranged in the same manner as in the first embodiment.
- the first lifting cord 22a is inserted into the notch 18a and is inserted between the notch 18a and the vertical cord 16b, so that the notch 18a engages with the first lifting cord 22a and the vertical cord 16b. Is even more difficult to remove. Therefore, the horizontal movement of the slat 18 is restricted by the notch 18a and the first lifting cord 22a, so that the horizontal displacement of the slat 18 can be more reliably prevented. In addition, the presence of the notches 18a can also improve the rotation during rotation of the slat.
- the elevation cords 22 may be formed of vertical cords and cutouts in all the cutouts 18a. It is not necessary to insert between the vertical cord and the vertical cord and the notch may be inserted between the vertical cord and the notch in at least one notch 18a, and in the other part, the elevator cord has a loop shape It may be inserted into a part.
- the slat 18 When the slat 18 is rotated / lifted, it can be performed in the same manner as in the first embodiment. At this time, when raising the slat 18, as shown in FIG. 13 (c) and FIG. 16 (c), since the slat 18 inclines and rises so that the notch 18a faces upward, the first lifting cord There is no risk of problems such as 22a and the ladder cord 16 coming into the notch 18a together or being caught in the corner of the notch 18a, and a smooth ascent operation is achieved.
- the slack portion of the vertical cord of the ladder cord is the elevation cord and There is a possibility of getting into the gap with the notch, and furthermore, there is a possibility that the portion which is slackened and folded back may be caught at the corner of the notch. Therefore, if the lowering operation is performed in that state, the hook does not come out as it is because the notch is lowered with the notch facing upward, and the slats are pulled down while being pulled down, and the lowering operation is continued further , There is a risk that the slat will descend while the left / right balance is uneven.
- FIG. 17 shows a third embodiment using a modified example of the elevating drum.
- only one lifting cord guide portion 28d is formed on the drum receiver 28 of the lifting drum 20 outside the ladder cord guide portions 28a and 28b.
- the left and right direction of the elevating drum 20 disposed in the center in the left and right direction is opposite to the left and right direction of the elevating drum 20 disposed in the left and right direction outside.
- the lifting cord is disposed outside the side edge of the slat to omit the lifting cord insertion hole of the slat, but the present invention is not limited thereto, and the center of the slat in the front-rear direction
- the present invention is similarly applicable to the case where a plurality of lifting cord insertion holes are provided at a position offset from the unit and the lifting cord is disposed in the lifting cord insertion hole.
- the rotary shaft 12 is manually rotated and driven.
- the rotary shaft 12 is connected to an electric motor and rotationally driven electrically. It can also be of configuration. By using the electric motor in this way, it is possible to eliminate the need for manual operation, and for blinds in a mounting position where the operation can not be easily reached, such as high places where it is difficult to operate electrically. Can also be applied.
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Abstract
Description
回転軸の回転に連動して回転する複数の昇降ドラムを備え、該昇降ドラムに昇降コードの一端が巻取り及び巻解き可能に連結されており、
少なくとも一つの昇降コードがヘッドボックスの前後方向における一方側からヘッドボックス内に導入されるとともに、他の昇降コードがヘッドボックスの前後方向における他方側からヘッドボックス内に導入され、
ヘッドボックスの前後方向における異なる位置からそれぞれヘッドボックス内に導入された全ての昇降コードを、それぞれの一端が連結される昇降ドラムによって同一方向に巻き取るようになっている。
ヘッドボックスの前後方向の異なる位置からそれぞれ導入される昇降コードを昇降ドラムで巻取り及び巻解き可能とすることにより、昇降ドラムを回転駆動する回転軸を手動で回転させる場合、昇降コードを直接引き下ろす操作を行うものに比べて、操作荷重が軽減されるため、製品サイズが大きく重量が重いブラインドに対しても適用することができる。
また、回転軸を電動で回転駆動させることで、昇降ドラムを回転することもできるようになる。この場合、昇降コードの昇降ドラムへの巻取り及び巻解きを手動で行わなくてもよいため、操作が容易になるとともに、手動では操作することが困難な容易に手が届かない取付け位置などにあるブラインドに対しても適用することができる。
また、ヘッドボックスの前後方向の異なる位置から昇降コードが導入されるようにしたので、スラットの前後方向中心部からオフセットされた位置に昇降コードを配設させることができると共に、昇降の際に、スラット全体のバランスをとることができる。そして、全ての昇降ドラムは同一の回転軸によって同一方向に回転し、昇降コードを同一方向に巻取っていくため、構造を簡素化することができる。
左右外側の昇降ドラムには、ヘッドボックスの前後方向において一方側からヘッドボックス内に導入されて、昇降コードガイド部を介して他方側へ向かって転回された昇降コードが連結され、
少なくとも1つの内側の昇降ドラムには、ヘッドボックスの前後方向において他方側からヘッドボックス内に導入されて、昇降コードガイド部を介して上方へ導かれた昇降コードが連結されることができる。
内側の昇降ドラムは、昇降コードが昇降コードガイド部を介して上方に導かれるようになっているため、負荷がかかりにくくすることができる。横型ブラインドはスラットの羽根出し寸法との関係によって、ボトムレールを左右に傾かずに昇降させるために必要な牽引力が、左右外側の昇降ドラムよりも内側の昇降ドラムにより大きくかかる傾向があるが、内側の昇降ドラムに負荷がかかりにくいように配回された昇降コードが連結されることで、昇降コードに対する負荷をバランスよく分散させ、製品としての耐久性を向上させることができる。
少なくとも1つの内側の昇降ドラムには、ヘッドボックスの前後方向において一方側からヘッドボックス内に導入されて、昇降コードガイド部を介して他方側へ向かって転回された昇降コードが連結され、
左右外側の昇降ドラムには、ヘッドボックスの前後方向において他方側からヘッドボックス内に導入されて、昇降コードガイド部を介して上方へ導かれた昇降コードが連結されることができる。
切欠部をスラットの左右外側の側縁に形成して、昇降コードを該切欠部と垂直コードとの間に挿通するようにした場合に、スラット上昇時には、切欠部が上方を向くようにスラットが傾斜して上昇し、スラット下降時には、切欠部が下方を向くようにスラットが傾斜して下降するため、スラット昇降時に切欠部に昇降コードとラダーコードが一緒に入り込んだり、切欠部の角部に引掛かったりするような不具合が発生する恐れはなく、円滑な昇降動作を行うことができる。
図1ないし図10は、本発明の第1実施形態を表す。この実施形態は、特に重い製品に適用するのに適したものである。
次に、図11ないし図16に基づいて第2実施形態を説明する。この実施形態は、特にスラット18の水平方向へのずれを確実に防止するのに適したものである。以下、第1実施形態と重複する構成に関しては説明を省略し、同一の部材には第1実施形態と同じ符号を付す。
次に、図17に昇降ドラムの変形例を用いた第3実施形態を示す。
12 回転軸
16 ラダーコード
16a、16b 垂直コード
18 スラット
18a 切欠部
20 昇降ドラム
20a 第1昇降ドラム(昇降ドラム)
20b 第2昇降ドラム(昇降ドラム)
22 昇降コード
22a 第1昇降コード(昇降コード)
22b 第2昇降コード(昇降コード)
26 ドラム部
28 ドラム受け
28a、28b ラダーコードガイド部
28c、28d 昇降コードガイド部
Claims (8)
- ヘッドボックス(10)内に回転可能に支持される回転軸(12)と、回転軸の回転に連動して傾動する複数のラダーコード(16)と、ラダーコードに整列状態に支持される多数のスラット(18)と、スラットを昇降可能な複数の昇降コード(22)と、を備え、昇降コードがスラットの前後方向中心部からオフセットされた位置に配設された、横型ブラインドにおいて、
回転軸の回転に連動して回転する複数の昇降ドラム(20)を備え、該昇降ドラムに昇降コードの一端が巻取り及び巻解き可能に連結されており、
少なくとも一つの昇降コード(22a)がヘッドボックスの前後方向における一方側からヘッドボックス内に導入されるとともに、他の昇降コード(22b)がヘッドボックスの前後方向における他方側からヘッドボックス内に導入され、
ヘッドボックスの前後方向における異なる位置からそれぞれヘッドボックス内に導入された全ての昇降コード(22a、22b)を、それぞれの一端が連結される昇降ドラム(20a、20b)によって同一方向に巻き取ることを特徴とする横型ブラインド。 - 各昇降ドラムは、昇降コードの一端が巻取り及び巻解き可能に連結されるドラム部(26)と、ドラム部を回転自在に支持するドラム受け(28)と、から構成され、ドラム受けは、昇降コードをスラットの前後方向中心部からオフセットされた位置に垂下させるための昇降コードガイド部(28c、28d)を有することを特徴とする請求項1記載の横型ブラインド。
- ドラム受けは、ラダーコードの前後の垂直コードが所定量以上前後方向に開かないよう規制するラダーコードガイド部(28a、28b)をさらに有し、昇降コードガイド部は、ラダーコードガイド部の前後方向の外側に形成されることを特徴とする請求項2記載の横型ブラインド。
- スラットの側縁には少なくとも1つの切欠部(18a)が形成されており、少なくとも1つの切欠部に沿ってラダーコードの前後の垂直コード(16a、16b)のうちの一方が配されており、少なくとも1つの切欠部において、昇降コードは切欠部と垂直コードとの間を挿通するように配設されることを特徴とする請求項1ないし3のいずれか1項記載の横型ブラインド。
- 切欠部と垂直コードとの間を挿通された昇降コード以外の昇降コードは、スラットの側縁外側において、ラダーコードの前後の垂直コードに沿って配設されることを特徴とする請求項4記載の横型ブラインド。
- 切欠部は、スラットの一方の側縁にのみ形成されており、スラットを上昇させる際には傾斜するスラットの上方を向くとともに、スラットを下降させる際には傾斜するスラットの下方を向く側縁に形成されていることを特徴とする請求項4または5記載の横型ブラインド。
- 昇降ドラムをヘッドボックスの左右方向に少なくとも3個配置し、
左右外側の昇降ドラムには、ヘッドボックスの前後方向において一方側からヘッドボックス内に導入されて、昇降コードガイド部を介して他方側へ向かって転回された昇降コードが連結され、
少なくとも1つの内側の昇降ドラムには、ヘッドボックスの前後方向において他方側からヘッドボックス内に導入されて、昇降コードガイド部を介して上方へ導かれた昇降コードが連結されることを特徴とする請求項1ないし6のいずれか1項に記載の横型ブラインド。 - 昇降ドラムをヘッドボックスの左右方向に少なくとも3個配置し、
少なくとも1つの内側の昇降ドラムには、ヘッドボックスの前後方向において一方側からヘッドボックス内に導入されて、昇降コードガイド部を介して他方側へ向かって転回された昇降コードが連結され、
左右外側の昇降ドラムには、ヘッドボックスの前後方向において他方側からヘッドボックス内に導入されて、昇降コードガイド部を介して上方へ導かれた昇降コードが連結されることを特徴とする請求項1ないし6のいずれか1項に記載の横型ブラインド。
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US20130068402A1 (en) | 2013-03-21 |
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