WO2014181706A1 - カムユニット、横型ブラインド、日射遮蔽装置の駆動ユニット - Google Patents

カムユニット、横型ブラインド、日射遮蔽装置の駆動ユニット Download PDF

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Publication number
WO2014181706A1
WO2014181706A1 PCT/JP2014/061681 JP2014061681W WO2014181706A1 WO 2014181706 A1 WO2014181706 A1 WO 2014181706A1 JP 2014061681 W JP2014061681 W JP 2014061681W WO 2014181706 A1 WO2014181706 A1 WO 2014181706A1
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WO
WIPO (PCT)
Prior art keywords
cord
head box
lifting
connecting portion
cone
Prior art date
Application number
PCT/JP2014/061681
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
善行 裸野
万人 山岸
将哉 山口
Original Assignee
立川ブラインド工業 株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP2013098443A external-priority patent/JP6243138B2/ja
Priority claimed from JP2013101001A external-priority patent/JP6151556B2/ja
Priority claimed from JP2013112944A external-priority patent/JP6151571B2/ja
Application filed by 立川ブラインド工業 株式会社 filed Critical 立川ブラインド工業 株式会社
Priority to BR112015027803-5A priority Critical patent/BR112015027803B1/pt
Priority to AU2014263713A priority patent/AU2014263713B2/en
Priority to KR1020157034527A priority patent/KR102116717B1/ko
Priority to CN201480025588.4A priority patent/CN105209707B/zh
Publication of WO2014181706A1 publication Critical patent/WO2014181706A1/ja

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Classifications

    • 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
    • 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

Definitions

  • This invention relates to a cam unit of an obstacle detection / stop device used in a solar blind shielding device such as a horizontal blind, a raised curtain, and a pleated screen in a first aspect, and relates to a high shielding type horizontal blind in a second aspect, In a 3rd viewpoint, it is related with the drive unit of the solar radiation shielding apparatus used with a solar radiation shielding apparatus.
  • one end of the lifting / lowering cord is attached to the bottom rail provided under the solar shading material suspended from the head box, and the other end of the lifting / lowering cord is attached to the winding cone. Is rotated to wind up and rewind the lifting cord and lift the solar shading material.
  • the bottom rail is lowered by rotating the winding cone in the rewinding direction using the tension applied to the lifting / lowering cord by the weight of the bottom rail.
  • an obstacle detection stop device is used to stop the winding cone from rotating and prevent the hoisting cord from being excessively rewound.
  • a bottom rail is arranged at the lower end of the ladder cord, and the slats are raised and lowered by raising and lowering the bottom rail by pulling the lifting cord attached to the bottom rail into the head box and pulling it out from the head box.
  • an elevating cord insertion hole is provided at the center in the front-rear direction of each slat. The elevating cord is suspended from the head box, inserted into the elevating cord insertion hole, and connected to the bottom rail. ing.
  • one end of the lifting / lowering cord is attached to the bottom rail provided below the solar shading material suspended from the head box, and the other end of the lifting / lowering cord is attached to the winding shaft. Is rotated to wind up and rewind the lifting cord and lift the solar shading material.
  • an operation cord is hung on an operation pulley rotatably supported by the head box, and the operation pulley is rotated by operating the operation cord, and the rotation is transmitted to the winding shaft.
  • the winding shaft is rotated (for example, see Patent Document 4).
  • Patent Document 1 (First viewpoint: About the cam unit of the obstacle detection stop device)
  • a rotating drum and a cam clutch are accommodated in a winding cone, and when the rotating drum is rotated in a state where the rotation of the winding cone is stopped, the cam clutch moves in the axial direction in a direction away from the winding cone.
  • the winding claw provided on the cam clutch engages with the braking protrusion of the support member, so that the winding cone is stopped when an obstacle is detected.
  • the length and diameter of the winding cone may vary from product to product.
  • the obstacle detection and stop device using the technology in Patent Document 1 it is necessary to consider the configuration related to the obstacle detection and stop device when designing the winding cone of all products, It becomes complicated.
  • Patent Document 4 an operation code is provided at the end of the head box, and it is difficult to operate when the solar shading device reaches the end of the room.
  • the operation code is desired to be provided at the center side in the width direction of the head box, the configuration of Patent Document 4 cannot change the position of the operation code. Therefore, a technique that can provide an operation code at a desired position in the width direction of the head box is desired.
  • the present invention has been made in view of such circumstances.
  • the present invention provides a configuration that can cope with differences in the length and diameter of the winding cone, and in the second aspect, the shielding property is extremely excellent.
  • a horizontal blind is provided, and in a third aspect, a drive unit for a solar shading device is provided that can provide an operation cord at a desired position in the width direction of the head box.
  • the above problem can be solved by at least one of the following first to third aspects of the present invention.
  • the contents described in the following first to third viewpoints can be combined with each other, and a more excellent effect can be obtained by combining them.
  • the object and effect of the first aspect are achieved by the contents of the first aspect of the present invention
  • the object and effect of the second aspect are achieved by the contents of the second aspect of the present invention.
  • the purpose and effect of the third viewpoint are achieved depending on the contents of the viewpoint.
  • a cone cap that is detachably fitted to a winding cone that winds and unwinds the lifting cord and rotates integrally with the winding cone, and the cone cap A rotary drum that is engaged so as to be restricted in axial movement, and is rotatable relative to the cone cap within a predetermined angular range, and rotates integrally with the cone cap when the range is exceeded.
  • a cam unit comprising a cam clutch that rotates integrally with the cone cap and that is engaged with the rotary drum so as to move relative to the cone cap in the axial direction as the rotary drum rotates. Is done.
  • the inventors of the present invention have intensively studied to avoid the complexity of designing the winding cone, and have come up with the idea of incorporating an obstacle detection and stop device into the cone cap attached to the proximal end of the winding cone. Based on this idea, if a cam unit in which a cone cap, a rotating drum, and a cam clutch are integrally engaged is prepared, this cam unit can be mounted even if the length and diameter of the winding cone change. As a result, the present inventors have realized that an obstacle detection / stopping device can be easily realized.
  • the cone cap includes a braking cylinder portion that accommodates the rotating drum and the cam clutch
  • the cone cap includes a pair of engagement protrusions in the braking cylinder portion
  • the rotating drum includes the pair of engagement protrusions.
  • the cam clutch includes a pair of moving slits that engage with the pair of engagement protrusions, and the relative rotation of the rotary drum with respect to the cone cap.
  • the restricting protrusion comes into contact with the engaging protrusion to define the relative rotatable range.
  • a plurality of first and second ladder cords that are suspended from the head box and have a plurality of weft yarns between a pair of warp yarns, a bottom rail disposed at a lower end of the ladder cords, A plurality of slats supported by a plurality of wefts of the ladder cord, first and second lifting cords suspended from the head box and supporting the bottom rail, and lifting and lowering between the head box and the bottom rail Elevating means for elevating the bottom rail by changing the cord length from the head box side, and the first and second elevating cords are suspended on opposite sides in the front-rear direction across the slats, and the first ladder
  • the cord has a first connecting portion that allows the first elevating cord to be slidably inserted in the vertical direction, and is engaged with a notch provided in the slat.
  • the second ladder cord has a second connecting portion through which the second lifting / lowering cord is slidably inserted in the vertical direction, and has a horizontal blind provided with at least one of the following features (1) to (2) Is done.
  • the range in which the second elevating cord can move in the front-rear direction in the second connecting portion is larger than the range in which the first elevating cord can move in the front-rear direction in the first connecting portion.
  • the weft yarn of the first ladder cord is shorter than the weft yarn of the second ladder cord.
  • the present inventor first tried to simply increase the size of the connecting loop connecting the lifting / lowering cord and the ladder cord to suppress the phenomenon that the lifting / lowering cord pulls the ladder cord and the slat opens. As a result, the pulling force of the lifting / lowering cord is weakened, and the phenomenon that the slat opens can be suppressed.
  • lateral misalignment another problem (hereinafter referred to as “lateral misalignment”) occurs in which the slat is easily displaced in the width direction.
  • lateral misalignment Another problem
  • the position of the slat in the width direction is held by engaging the ladder cord with the notch formed in the slat, but by increasing the size of the connecting loop, the ladder cord becomes the lifting cord.
  • it is not easy to achieve both prevention of lateral displacement and prevention of slat opening.
  • the present inventor further studied in such a situation.
  • the first ladder cord the second ladder cord is engaged with the notch of the slat, and in the second ladder cord, the lifting cord is suspended on the opposite side across the slat.
  • a configuration comprising at least one of the means 1) to (2) has been reached.
  • the first ladder cord is unlikely to be disengaged from the notch of the slat and the ladder cord, and the second ladder cord is prevented from opening the slat, thereby preventing lateral deviation. And prevention of slat opening.
  • the second ladder cord is not engaged with the notch of the slat.
  • the notch has a tapered surface that extends outward in the front-rear direction of the slat.
  • the first ladder cord includes a plurality of first connecting portions, and has at least one of the following features (A1) to (B1) for one or a plurality of first connecting portions close to the head box. (A1) The first lifting / lowering cord is not inserted into the first connecting portion and is not connected to the first connecting portion.
  • the first lifting / lowering cord is not inserted into the first connecting portion and is connected to the first connecting portion via the first connecting member.
  • the second ladder cord includes a plurality of second connecting portions, and has at least one of the following features (A2) to (B2) for one or a plurality of second connecting portions close to the head box.
  • A2) The second lifting / lowering cord is not inserted into the second connecting portion and is not connected to the second connecting portion.
  • B2) The second lifting / lowering cord is not inserted into the second connecting portion and is connected to the second connecting portion via the second connecting member.
  • each of the first and second ladder cords includes a plurality of first and second connecting portions, and has at least one of the following features (a) to (b).
  • the first lifting / lowering cord In the first connecting portion closest to the head box, the first lifting / lowering cord is not inserted into the first connecting portion and is not connected to the first connecting portion, and is the second connection closest to the head box. In the part, the first lifting / lowering cord is not inserted into the first connecting part and is connected to the first connecting part via the first connecting member.
  • the second connecting portion closest to the head box In the second connecting portion closest to the head box, the second lifting / lowering cord is not inserted into the second connecting portion and is not connected to the second connecting portion, and the second connecting portion closest to the head box. In the portion, the second lifting / lowering cord is not inserted into the second connecting portion and is connected to the second connecting portion via the second connecting member.
  • a head box a drive shaft that is housed in the head box and raises and lowers the solar shading material by rotation, an operation unit unit that rotates the drive shaft by rotation of an operation pulley,
  • the operation cord is provided on the operation pulley
  • the head box has an operation code insertion hole through which the operation code is inserted, and the operation unit unit allows the operation code to be inserted into the operation code insertion hole.
  • a drive unit for a solar shading device comprising a cord retracting portion that reduces the interference between the operation cord and the head box in a state of being slidable in the width direction relative to the head box.
  • the present inventor configures an operation unit unit including an operation pulley so as to be slidable with respect to the head box, and by providing an operation code insertion hole at a desired position of the head box, An attempt was made to provide an operation code at the position of.
  • the operation code is inserted into the operation code insertion hole, the operation code is sandwiched between the operation unit and the head box in the head box, and it is difficult to slide the operation unit. It has been found that there is a problem that strong friction is applied to the operation cord when performing the operation.
  • the operation unit is removed by sliding the operation unit to the right end of the head box, and the operation code is inserted into the operation code insertion hole provided near the left end of the head box.
  • the operation unit is slid with respect to the head box and moved to a predetermined position, so that the position of the operation unit can be easily changed from the right side to the left side of the head box.
  • the operation unit includes a case that rotatably supports the operation pulley and holds a gear that transmits the rotation of the operation pulley to the drive shaft, and the case includes the operation cord on the head box.
  • the cord retracting portion is a gap between the facing surface of the case and the head box.
  • the head box has the operation cord insertion hole at each of a position near the right end and a position near the left end of the head box, and the case retracts the cord on each of the right side and the left side of the operation pulley. Part.
  • the case includes a case cap, a gear case, and an end cap in order in the width direction
  • the operation pulley is rotatably supported between the case cap and the gear case, and between the gear case and the end cap.
  • a transmission gear that transmits the rotation of the operation pulley to the drive shaft is supported, and the cord retracting portion is a gap between the facing surface of each of the case cap, the gear case, and the end cap and the head box.
  • a cord gate that can be attached to the operation code insertion hole is further provided, and the code gate is engaged with the operation unit unit in a state of being attached to the operation code insertion hole, and the operation unit unit is slid. Disable.
  • the head box includes a front projecting wall and a rear projecting wall projecting from the front wall and the rear wall toward the center in the front-rear direction
  • the operation unit includes the bottom wall of the head box, the front projecting wall, and the front projecting wall. It is slidable in a space surrounded by the wall, the rear wall, the front protruding wall, and the rear protruding wall.
  • FIG. 1 The horizontal blind of 1st Embodiment of the 1st viewpoint of this invention is shown, (a)-(b) is a front view, (c) is a right view. (B) shows a state where the front wall of the head box 1 is removed, and (c) shows a state where the box cap 21 is removed.
  • A) is a perspective view which shows the support member 11 in FIG. 1, and the member accommodated in this.
  • B) is a perspective view showing the details of the tilt spring 24 in (a). It is a perspective view which shows the support member 11 of FIG. It is the perspective view which looked at the support member 11 of FIG. 2 from another angle.
  • FIG. 1 is a perspective view which shows the fitting method of the adapter 51 of the support member 11 of FIG.
  • (B) is a bottom view showing a state in which the pulley 53 is mounted in the shaft holes 51e and 51f provided in the adapter 51, and (c) passes through the centers of the shaft holes 51e and 51f, and corresponds to (b).
  • FIG. It is a perspective view which shows the state from which the cone cap 14 and the winding cone 9 of FIG. 2 were isolate
  • (A) is a perspective view which shows the state from which the cam clutch 12 and the rotating drum 13 which were included in the obstruction detection stop apparatus 10 of FIG. 2 were isolate
  • (B) is the figure which looked at the rotating drum 13 from the cam clutch 12 side.
  • (C) is a perspective view showing a state in which the cam clutch 12 and the rotary drum 13 are connected.
  • (A) is the perspective view which looked at the cam clutch 12 and the rotating drum 13 of FIG. 7 from another angle.
  • (B) is a perspective view showing the cam clutch 12 and the rotating drum 13 in the connected state and the cone cap 14 in the separated state.
  • (A)-(b) is a perspective view which shows the cam clutch 12, the rotating drum 13, and the cone cap 14 of a connection state.
  • (A) is the figure which looked at the rotating drum 13 and the cone cap 14 from the cam clutch 12 side.
  • (B) is a figure corresponding to FIG.7 (c).
  • (C) is a figure corresponding to FIG.
  • FIG. 1 (c) shows a state in which the slat 3 is tilted from the fully closed state to the reverse fully closed state with the bottom rail 4 in the lower limit position.
  • FIG. 1 It is a perspective view which shows the connection structure of the cam clutch 12 and the 2nd rotation drum 73, (a) shows a separation state, (b) shows a connection state.
  • (A) is a perspective view from another angle which shows the connection structure of the cam clutch 12 and the 2nd rotation drum 73, (b) is the connection of the cam clutch 12, the 2nd rotation drum 73, and the cone cap 14.
  • FIG. It is a perspective view which shows a structure. 4 is a perspective view showing the cam clutch 12, the second rotating drum 73, the cone cap 14, and the first rotating drum 63 in a connected state.
  • (A) to (b) and (c) to (d) show the first state and the second state of the positional relationship between the first and second rotating drums 63 and 73 and the cone cap 14, respectively.
  • (A) And (c) is sectional drawing seen from the cam clutch 12 side which passes along the control protrusion 13e of the 2nd rotation drum 73, and the engagement protrusions 14c and 14d of the cone cap 14, (b).
  • (d) is a cross-sectional view seen from the cam clutch 12 side, passing through the restricting protrusion 63e of the first rotating drum 63 and the restricting protrusion 73d of the second rotating drum 73.
  • (A) to (b) and (c) to (d) show the third state and the fourth state of the positional relationship between the first and second rotating drums 63 and 73 and the cone cap 14, respectively.
  • (A) And (c) is sectional drawing seen from the cam clutch 12 side which passes along the control protrusion 13e of the 2nd rotation drum 73, and the engagement protrusions 14c and 14d of the cone cap 14, (b).
  • (d) is a cross-sectional view seen from the cam clutch 12 side, passing through the restricting protrusion 63e of the first rotating drum 63 and the restricting protrusion 73d of the second rotating drum 73.
  • FIG. 23 (a) is a plan view of the slat 9 of FIG. 21
  • FIG. 23 (b) is a cross-sectional view taken along the line AA in FIG. 23 (a)
  • FIG. 23 (a) is a plan view of the slat 9 of FIG. 21
  • FIG. 23 (b) is a cross-sectional view taken along the line AA in FIG. 23 (a)
  • 24 (a) to 24 (b) are front views of the first and second ladder cords 5 and 6, and
  • FIGS. 24 (c) to 24 (d) are first views of FIGS. 24 (a) to 24 (b).
  • FIG. 24 (a) to 24 (b) are front views of the first and second ladder cords 5 and 6
  • FIGS. 24 (c) to 24 (d) are first views of FIGS. 24 (a) to 24 (b).
  • FIG. 5 is a cross-sectional view showing a state in which the slat 9 is held by the second ladder cords 5 and 6 and the first and second elevating cords 13 and 14 are inserted through the connecting portions 5c and 6c.
  • 25 (a) and 25 (b) are cross-sectional views through the first and second ladder cords 5 and 6 when the slat 9 is in a horizontal state.
  • 26 (a) and 26 (b) are cross-sectional views through the first and second ladder cords 5 and 6 when the slat 9 is in a fully closed state.
  • FIG. 27 is a view corresponding to FIG. 22 in the horizontal blind according to the second embodiment of the second aspect of the present invention.
  • FIG. 28 is a view corresponding to FIG.
  • FIGS. 29A to 29D are views corresponding to FIGS. 24A to 24D in the horizontal blind according to the fourth embodiment of the second aspect of the present invention.
  • FIGS. 30A to 30D are views corresponding to FIGS. 24A to 24D in the horizontal blind according to the fifth embodiment of the second aspect of the present invention.
  • FIGS. 31A and 31B are views corresponding to FIGS. 26A and 26B in the horizontal blind according to the fifth embodiment of the second aspect of the present invention.
  • FIG. 4D is a cross-sectional view through the center of the cord gate 15 in the width direction, showing a state in which the cord gate 15 is engaged with the head box 1.
  • FIG. 4E is a right side view showing an engagement state between the cord gate 15 and the operation unit 6 in the head box 1.
  • (F) is a cross-sectional view through the center in the width direction of the blindfold cap 17, showing a state in which the blindfold cap 17 is engaged with the head box 1.
  • (A)-(d) is a perspective view which shows the procedure which removes the operation part unit 6 attached to the right side of the head box 1 of FIG.
  • (A)-(d) is a perspective view which shows the procedure of attaching the operation part unit 6 to the left side of the head box 1 of FIG.
  • the horizontal blind as the solar shading device shown in FIG. 1 is supported by hanging a plurality of slats 3 as solar shading materials through a plurality of ladder cords 2 suspended from the head box 1.
  • the bottom rail 4 is suspended and supported at the lower end.
  • a plurality of lifting cords 5 are suspended from the head box 1, the central lifting cord 5 is suspended on the front side (inside the room) of the slats 9, and the lifting cords 5 at both ends are connected to the slats 9. Hangs on the back side (outside the room).
  • the lifting cord 5 has an upper end wound around a winding cone 9 disposed in the head box 1 and a lower end connected to the bottom rail 4.
  • the lifting / lowering cord 5 is attached to the winding cone 9 by hooking a knot provided at one end thereof to the engaging groove 9d of the winding cone 9, and winding or unwinding is performed based on the rotation of the winding cone 9.
  • the bottom rail 4 and the slat 3 are moved up and down based on this rotation.
  • the winding cone 9 is rotatably supported by the support member 11 and can be rotated relative to the drive shaft 8.
  • the support member 11 is detachably fixed to the head box 1.
  • Each support member 11 includes an obstacle detection / stop device 10 that detects that the bottom rail 4 has collided with an obstacle when the bottom rail 4 is lowered and stops the rotation of the drive shaft 8.
  • the upper end of the ladder cord 2 is attached to a tilt spring 24 attached to the tilt drum 23.
  • the tilt spring 24 is formed by bending one wire into a loop shape as shown in FIG. 2B, and has ladder cord attachment portions 24a1, 24a2 and locking projections 24b1, at both ends. 24b2.
  • Two upper ends of the ladder cord 2 are attached to the two ladder cord attaching portions 24a1 and 24a2, respectively.
  • the tilt drum 23 is supported by the drive shaft 8 so as not to be relatively rotatable in the tilt drum housing portion 11 d of the support member 11. As shown in FIG. 2A, the tilt spring 24 tightens the tilt drum 23 and rotates integrally with the tilt drum 23 when the locking protrusions 24 b 1 and 24 b 2 are not in contact with the support member 11.
  • the angle of each slat 3 is adjusted in phase with the ladder code 2 based on the rotation of the tilt drum 23. Further, the tilt drum 23 is further moved in the direction of the arrow XD in a state where the tilt drum 23 is rotated in the direction of the arrow XD in FIG. 2A and the locking projection 24b1 is brought into contact with the locking surface 11h of the support member 11. When rotated, the force in the direction of the arrow XU in FIG. 2B is applied to the locking projection 24b1, so that the diameter of the tilt spring 24 is expanded and the force with which the tilt spring 24 tightens the tilt drum 23 is weakened. It comes to idle with respect to the tilt spring 24.
  • the tilt drum 23 is rotated in the arrow XU direction and the locking projection 24b1 is brought into contact with the locking surface 11h of the support member 11, the tilt drum 23 is further rotated in the arrow XU direction based on the same principle. As a result, the tilt drum 23 rotates idly with respect to the tilt spring 24. According to such a principle, when each slat 3 is rotated to a substantially vertical direction, it is prevented from further rotating.
  • An operation unit 6 is provided at a position on the center side in the width direction from the right end of the head box 1, and the drive shaft 8 accommodated in the head box 1 can be rotationally driven based on the operation of the loop-shaped operation cord 7.
  • the winding cone 9 is rotated based on the rotation of the drive shaft 8.
  • the operation unit 6 includes a known weight drop prevention device (not shown) inside.
  • the self-weight drop prevention device operates when the lifting operation of the bottom rail 4 and the slat 3 based on the operation cord 7 is stopped, stops the rotation of the drive shaft 8, and suspends the bottom rail 4 and the slat 3 at a desired position. Let Moreover, the bottom rail 4 and the slats 3 are lowered based on their own weight by releasing the operation of the own weight lowering prevention device by operating the operation cord 7.
  • An operation code insertion hole 13 is provided at a position near the right end and a position near the left end of the head box 1, and the operation code 7 is placed outside the head box 1 through the code gate 15 in the right operation code insertion hole 13.
  • the left operation cord insertion hole 13 is used when the operation unit 6 is moved to the left side of the head box 1, and when not used, as shown in FIG. It is blocked. Both ends of the head box 1 are closed with box caps 21.
  • the winding cone 9 includes a winding portion 9b, a flange 9a provided on the distal end side of the winding portion 9b, and a connecting portion 9c provided on the proximal end side of the winding portion 9b. Is provided.
  • An engaging groove 9d is provided in the connecting portion 9c. Since the winding portion 9b has a tapered shape that gradually decreases from the distal end side toward the proximal end side, the lifting cord 5 wound up at the distal end side is easily moved to the proximal end side.
  • the connecting portion 9c is not tapered.
  • a cone cap 14 is connected to the connecting portion 9c.
  • the cone cap 14 includes a locking cylinder portion 14e extending from the flange 14g to the winding cone 9 side, and a braking cylinder portion 14f extending to the opposite side.
  • the locking cylinder portion 14e has an outer diameter smaller than that of the braking cylinder portion 14f, and the groove engagement protrusion 14a and the connecting protrusion 14b protrude outward in the radial direction from the locking cylinder portion 14e.
  • Each of the engagement groove 9d, the groove engagement protrusion 14a, and the connection protrusion 14b is provided at two positions at intervals of 180 degrees. Further, the groove engaging protrusion 14a and the connecting protrusion 14b are provided at positions shifted from each other by 90 degrees.
  • the diameter of the outer peripheral circle surrounding the two connecting protrusions 14b is slightly smaller than the inner diameter of the connecting part 9c, and the position of the groove engaging protrusion 14a is adjusted to the engaging groove 9d so that the connecting protrusion 14b is By inserting it into the connecting portion 9c, the cone cap 14 and the winding cone 9 can be loosely connected.
  • the groove engaging protrusion 14a is engaged with the engaging groove 9d, the cone cap 14 and the take-up cone 9 rotate together, but there is nothing that prevents the axial separation of the two. In this state, both are easily separated.
  • the taper surface 14h is provided in the edge of the axial direction of the connection protrusion 14b, and it becomes easy to insert the connection protrusion 14b in the connection part 9c.
  • the support member 11 includes a winding cone support portion 11a that supports the flange 9a of the winding cone 9 and a cone cap support portion 11b that supports the brake cylinder portion 14f of the cone cap 14.
  • the flange 9a of the winding cone 9 is supported by the winding cone support portion 11a, and the braking cylinder portion 14f of the cone cap 14 is fixed to the cone cap.
  • the flange 9a engages with the winding cone support portion 11a to prevent axial movement
  • the flange 14g abuts against the partition wall 11c.
  • the cone cap 14 is prevented from moving in the axial direction in a direction away from the winding cone 9.
  • the winding cone 9 and the cone cap 14 are connected to the support member 11 in a connected state, the winding cone 9 and the cone cap 14 are not separated.
  • a cam clutch 12 and a rotating drum 13 are accommodated in a brake cylinder portion 14f of the cone cap 14, and the support member 11 engages with a brake claw 12c of the cam clutch 12 to drive the drive shaft 8.
  • a braking protrusion 11g is provided to stop the rotation.
  • an adapter 51 having a lifting / lowering cord insertion hole 51a and a ladder cord insertion hole 51b is detachably fitted to the bottom surface of the support member 11, and the lifting / lowering cord 5 and the ladder cord 2 are respectively Then, it is introduced into the support member 11 through the lifting / lowering cord insertion hole 51 a and the ladder code insertion hole 51 b and attached to the winding cone 9 and the tilt drum 23.
  • the adapter 51 is supported by a protrusion 11e that protrudes from the front wall and the rear wall of the support member 11 toward the center in the front-rear direction. Advantages of using such an adapter 51 include that the support member 11 can be easily molded and that the support member 11 can be easily shared.
  • the lifting / lowering cord insertion hole 51a is provided between the partition wall 51c and the partition wall 51d, and the partition walls 51c and 51d are provided with six sets of shaft holes 51e and 51f.
  • the pulley 53 can be fixed to the adapter 51 by inserting the fixing pin 52 so that the position of the shaft hole 53a of the pulley 53 is aligned with the shaft holes 51e and 51f of the partition walls 51c and 51d.
  • the fixing pin 52 is not easily removed from the shaft hole 51f by being press-fitted into the shaft hole 51f, but may be prevented from being removed by another method.
  • the pulley is changed when the fixing position of the pulley 53 is changed in accordance with the width of the slat 3 or when the support member 11 is changed left and right. 53 is easily changed. Further, the pulley 53 and the fixing pin 52 can be fixed to the adapter 51 before the adapter 51 is attached to the support member 11. As a result, the mounting operation of the pulley 53 and the fixing pin 52 is facilitated.
  • the obstacle detection / stop device 10 includes a support member 11, a cam clutch 12, a rotating drum 13, and a cone cap 14.
  • the cam clutch 12 is formed in a substantially cylindrical shape, and includes a cylindrical portion 12a and a braking portion 12b formed with a larger diameter than the cylindrical portion 12a.
  • the cylindrical portion 12a is inserted into and supported by the cam clutch support hole 11f of the support member 11.
  • the diameter of the outer peripheral surface of the brake portion 12b is set to a size that allows sliding with the inner peripheral surface of the brake cylinder portion 14f of the cone cap 14.
  • a braking claw 12c is formed at the end of the braking portion 12b on the cylinder portion 12a side. The braking claw 12c protrudes in a sawtooth shape in the axial direction, and can engage with the braking projection 11g of the support member 11.
  • the braking claw 12c is prevented from rotating in the circumferential direction by engaging with the braking projection 11g, and the support member 11 and the cam clutch 12 are not allowed to rotate relative to each other.
  • a plurality of braking claws 12c are formed at equal angular intervals along the circumferential direction of the braking portion 12b (two in this embodiment at intervals of 180 degrees).
  • a sliding hole 12d and a moving slit 12e as a cam structure are formed on the side wall of the braking portion 12b.
  • the sliding hole 12d is formed to be inclined by about 68 degrees with respect to the axis of the braking portion 12b. Further, the length of the sliding hole 12d is set so as to be disposed over an angle range of approximately 120 degrees in the circumferential direction of the braking portion 12b.
  • the moving slit 12e is formed along the axial direction of the braking portion 12b. As shown in FIG. 8B, the moving slit 12e is disposed so as to correspond to the positions of the engaging protrusions 14c and 14d of the cone cap 14, and the moving slit 12e and the engaging protrusions 14c and 14d are arranged. , The cam clutch 12 and the cone cap 14 are assembled so as not to be relatively rotatable and to be relatively movable along the axial direction.
  • the cam clutch 12 is relatively moved in the axial direction of the cone cap 14, so that when the braking claw 12c is engaged with the braking projection 11g of the support member 11, the cam clutch 12 cannot rotate relative to the support member 11. When the engagement state between 12c and the brake protrusion 11g is released, the support member 11 can rotate relative to the support member 11.
  • the side wall of the braking portion 12b is formed so that one side (the back side in FIG. 8A) sandwiching both moving slits 12e in the circumferential direction protrudes in the axial direction from the other side (the front side in FIG. 8A). .
  • the drive shaft 8 is inserted into the cylindrical hole 12f of the cylindrical portion 12a of the cam clutch 12.
  • the cylindrical hole 12f is larger than the circumscribed circle diameter of the drive shaft 8 having a rectangular cross section, the cam clutch 12 is driven. Relative rotation with the shaft 8 is possible.
  • a rotating drum 13 is housed inside the cam clutch 12 in the radial direction.
  • the rotary drum 13 includes a main body portion 13a and a locking claw 13b.
  • the main body portion 13a is formed in a substantially cylindrical shape, and as shown in FIG. 7B, a regular tetragonal insertion hole 13c is formed at the center of the main body portion 13a.
  • the rotary drum 13 has a rectangular drive shaft 8 of the same size passing through the insertion hole 13 c and rotates together with the drive shaft 8.
  • locking claws 13b are formed at equal angular intervals (90 degree intervals) along the circumferential direction of the main body portion 13a, and when inserted into the locking cylinder portion 14e of the cone cap 14, It can be elastically deformed toward the center.
  • the locking claw 13b is formed to have a smaller diameter than the main body 13a.
  • the locking cylinder 14e of the cone cap 14 is sandwiched between the main body 13a and each claw 13b in the axial direction. Does not move relative to the axial direction.
  • the main body portion 13a has two cutouts along the axial direction, and an arm 13f is formed by the cutouts.
  • a sliding protrusion 13d is formed at the tip of the arm 13f so as to protrude outward in the radial direction of the rotary drum 13.
  • the arm 13f has flexibility along the radial direction of the rotating drum 13 due to the notch, and when assembled inside the cam clutch 12, the tip thereof bends toward the center together with the sliding protrusion 13d. Yes.
  • the sliding protrusion 13d is formed to protrude in a substantially cylindrical shape, and is formed to be slidable in the sliding hole 12d of the cam clutch 12.
  • a restricting protrusion 13e is formed at one end of the main body 13a on the side of the locking claw 13b and protrudes radially outward.
  • the restricting protrusion 13e is disposed at a position substantially opposite to the sliding protrusion 13d in the circumferential direction of the main body 13a.
  • the restricting protrusion 13e is formed so as to protrude within a predetermined angular range in the circumferential direction of the main body 13a.
  • the rotating drum 13 formed in this way is assembled so that the sliding protrusion 13d is accommodated in the sliding hole 12d of the cam clutch 12, as shown in FIG. Further, as shown in FIG. 8B, FIG. 10A and FIG. 11A, the rotary drum 13 is arranged between the restricting protrusion 13e and the engaging protrusions 14c and 14d of the cone cap 14. It is assembled to be installed. Accordingly, as shown in FIGS. 10A and 11A, the rotary drum 13 and the cone cap 14 are relatively moved by the regulating projection 13e between the engagement projections 14c and 14d of the cone cap 14. Relative movement is possible only within the range.
  • the restricting protrusion 13e contacts the engaging protrusion 14c and applies a force in the direction of the arrow XU in FIG. 10A to the engaging protrusion 14c.
  • the drum 13 rotates integrally with the cone cap 14. Further, since the cam clutch 12 and the winding cone 9 always rotate integrally with the cone cap 14, as a result, the rotating drum 13 rotates integrally with the cone cap 14, the cam clutch 12 and the winding cone 9, and the lifting cord 5 is wound around the winding cone 9 and the bottom rail 4 is raised.
  • the engagement between the braking claw 12c and the braking projection 11g is released, and the drive shaft 8 can be rotated relative to the support member 11.
  • the rotating drum 13 rotates relative to the cone cap 14 until the restricting protrusion 13e contacts the engaging protrusion 14c. For this reason, winding of the raising / lowering cord 5 is started after the drive shaft 8 is rotated by the angle R in FIG.
  • the tilt drum 23 rotates integrally with the drive shaft 8, the winding of the lifting / lowering cord 5 is started with an angle R delayed from the tilt of the slat 3.
  • the angle R is set to a relatively large angle of, for example, 80 degrees or more (preferably 90, 100, 110, or 120 degrees or more).
  • the slat 3 is moved from the fully closed state shown in FIG. Even if the drive shaft 8 is rotated until the reverse fully closed state shown in FIG. 12C, the winding of the lifting / lowering cord 5 is not started, and the fully closed state shown in FIG. 12A and FIG.
  • the height position of the bottom rail 4 can be made the same in the reverse fully closed state shown.
  • the angle R since the angle R is small, winding of the lifting / lowering cord is started while the slat is being tilted from the fully closed state to the reverse fully closed state. Therefore, the height position of the bottom rail in the reverse fully closed state becomes higher than the height position of the bottom rail in the fully closed state, and light leakage occurs from below the bottom rail.
  • the obstacle detection and stop device 10 includes a support member 11, a cam clutch 12, a rotating drum 13, and a cone cap 14.
  • the winding cone 9 is configured to rotate integrally with the cone cap 14, and is not incorporated in the obstacle detection stop mechanism.
  • the support member 11 simply provides a braking protrusion 11g for engaging with the braking claw 12c and stopping the rotation of the cam clutch 12 as a configuration of the obstacle detection / stop device 10. . Therefore, if a cam unit composed of the cam clutch 12, the rotating drum 13, and the cone cap 14 is prepared, this cam unit can be used for various types of support members 11 and winding cones 9. Very easy.
  • the winding cones 9 have different lengths and diameters.
  • each of the winding cones 9 is configured to function as the obstacle detection / stop device 10, the design becomes complicated.
  • the winding cone 9 is not provided with any special structure other than simply providing the engaging groove 9d for integrally rotating with the cone cap 14, so that the design can be simplified. It is possible.
  • the groove engaging protrusion 14a of the cone cap 14 and the engagement groove 9d of the winding cone 9 are engaged and rotated together, but the configuration for rotating both integrally is particularly limited. Instead, another configuration may be employed.
  • the cone cap 14 and the winding cone 9 are not engaged so as to prevent separation in the axial direction, and are easily separated when not attached to the support member 11. It may be detachably engaged so as to prevent separation of directions.
  • the solar shading device is a horizontal blind, and the obstacle detection stop device 10 is disposed on the horizontal blind.
  • the solar shading device may be provided with a bottom rail and a lifting / lowering cord. Therefore, the solar radiation shielding device may be a pleated curtain. Further, by using a weight in place of the bottom rail, the solar radiation shielding device may be raised and used as a curtain.
  • the rotary drum 13 is composed of one component that rotates integrally with the drive shaft 8. However, in this embodiment, the rotary drum 13 rotates integrally with the drive shaft 8 as shown in FIG. 13.
  • the first rotating drum 63 and the second rotating drum 73 engaged with the cam clutch 12 are configured.
  • the second rotating drum 73 has a main body 13a, a sliding protrusion 13d, a restricting protrusion 13e, and an arm 13f, and the functions of these parts are as described in the first embodiment.
  • the second rotating drum 73 has a small cylindrical portion 73a extending from the main body portion 13a toward the first rotating drum 63 and having a smaller diameter than the main body portion 13a, and the small cylindrical portion 73a extends in the circumferential direction.
  • the first rotating drum 63 includes a cylindrical main body 63a, an arm 63b sandwiched between two cutouts along the axial direction, and a slide that is provided at the tip of the arm 63b and protrudes radially inward. And a protrusion 63c.
  • a regular square insertion hole 63 c is formed in the main body 63 a of the first rotating drum 63.
  • the driving shaft 8 having the same cross-sectional square shape passes through the insertion hole 63 c and rotates together with the driving shaft 8.
  • the small cylinder portion 73a is inserted into the main body portion 63a, and the sliding projection 63c is directed radially outward using the elasticity of the arm 63b.
  • the sliding protrusion 63c is engaged with the sliding protrusion 63c while being bent. As a result, the first rotating drum 63 and the second rotating drum 73 cannot move relative to each other in the axial direction.
  • the second rotating drum 73 is provided with restricting protrusions 73d that protrude from the small tube portion 73a toward the first rotating drum 63 at two positions at intervals of 180 degrees.
  • restricting protrusions 73d protruding inward in the radial direction at two locations at intervals of 180 degrees.
  • the restricting protrusion 73d and the restricting protrusion 63e are alternately arranged on the same rotation locus. That is, the restriction protrusion 63e is disposed between the two restriction protrusions 73d.
  • the restricting protrusion 73d and the restricting protrusion 63e come into contact with each other to prevent further relative rotation. Accordingly, the first and second rotating drums 63 and 73 can be relatively rotated within a predetermined angle range, and cannot be relatively rotated when the range is exceeded.
  • the first rotating drum 63 and the second rotating drum 73 are actually connected with the cone cap 14 sandwiched between them, as shown in FIG.
  • the connection structure in this case is the same as that shown in FIG.
  • the locking surface 63d of the first rotating drum 63 and the locking surface 73c of the second rotating drum 73 are respectively connected to the cone cap 14.
  • the cone cap 14 cannot move relative to the first and second rotating drums 63 and 73 in the axial direction.
  • the locking claw 13b is engaged with the locking cylinder portion 14e so that the rotary drum 13 cannot be moved relative to the cone cap 14 in the axial direction.
  • the first rotary drum 63 and the second rotary drum 73 are engaged with each other with the cone cap 14 interposed therebetween, so that the first and second rotary drums 63 and 73 cannot move relative to the cone cap 14. Yes.
  • the cone cap 14 includes a groove engaging protrusion 14a, a connecting protrusion 14b, engaging protrusions 14c and 14d, a brake cylinder 14f, and a flange 14g. Is as described in the first embodiment. Further, the cone cap 14 includes an insertion cylinder portion 14 i that accommodates the first rotating drum 63 and is inserted into the winding cone 9 on the opposite side of the braking cylinder portion 14 f across the flange 14 g.
  • the cam clutch 12 and the second rotating drum 73 engage the sliding protrusion 13d of the second rotating drum 73 with the sliding hole 12d of the cam clutch 12, as in the first embodiment. It is connected by letting. Further, as shown in FIG. 17, as in the first embodiment, the cam clutch 12 and the cone cap 14 cannot be rotated relative to each other by engaging the moving slit 12e and the engaging protrusions 14c and 14d. It is assembled so as to be relatively movable along the axial direction.
  • the sliding protrusion 13d of the second rotating drum 73 is located at the point A shown in FIG. 16 (b) in the sliding hole 12d of the cam clutch 12.
  • the protruding amount of the braking claw 12 c is small, and the cam clutch 12 is rotatable relative to the support member 11.
  • the restricting protrusion 63e of the first rotating drum 63 is in contact with the restricting protrusion 73d of the second rotating drum 73, so that the restricting protrusion 63e is engaged.
  • the first rotating drum 63 and the drive shaft 8 rotate integrally with the second rotating drum 73 by receiving a force in the direction of the arrow XD in FIG.
  • the rotation of the winding cone 9 is transmitted in the order of the cone cap 14, the second rotating drum 73, the first rotating drum 63, and the drive shaft 8, all of which rotate integrally.
  • the first and second rotating drums 63 and 73 rotate integrally in the direction of the arrow X in FIG.
  • the fourth state shown in 20 (c) to (d) is obtained.
  • the sliding protrusion 13d of the second rotating drum 73 moves from the point A to the point B shown in FIG. 16B in the sliding hole 12d of the cam clutch 12, and accordingly, the cam clutch 12 Moves away from the cone cap 14, and as a result, the amount of protrusion of the braking claw 12c from the cone cap 14 increases and engages with the braking protrusion 11g of the support member 11, so that the cam clutch 12 is supported. Relative rotation with respect to the member 11 becomes impossible.
  • the cone cap 14 is also unable to rotate relative to the support member 11, and the second rotating drum 73 is at a point in time when the restricting protrusion 13e comes into contact with the engaging protrusion 14d as shown in FIG.
  • the first rotary drum 63 is also unable to rotate relative to the support member 11, and the rotation of the drive shaft 8 is stopped.
  • the angle R shown in FIG. 19A is smaller than the angle R shown in FIG. 11A in the first embodiment.
  • the reason for such a design is as follows.
  • the rotation applied to the first rotating drum 63 from the drive shaft 8 is shown in FIG. Delayed by the angle S is transmitted to the second rotating drum 73, and the rotation of the second rotating drum 73 is delayed by the angle R and transmitted to the cone cap 14 and the winding cone 9, and the winding of the lifting cord 5 is started. .
  • winding of the raising / lowering cord 5 is started after the drive shaft 8 is rotated by the angle S + the angle R.
  • the angle S + the angle R is preferably 80 degrees or more (preferably 90, 100, 110, or 120 degrees or more) in order to effectively suppress the rise of the bottom rail 4 during the tilting operation.
  • One or a plurality of drums may be further arranged between the first rotating drum 63 and the second rotating drum 73 so that the adjacent drums are transmitted with a delay by a predetermined angle. As a result, it is possible to further increase the amount of delay in the transmission of rotation from the drive shaft 8.
  • the present invention does not start the winding of the lifting / lowering cord 5 during the tilting operation of the slat 3 with the bottom rail 4 in the lower limit position.
  • the lower limit position of the bottom rail 4 is not changed between the fully closed state and the reverse fully closed state to solve the problem of preventing the occurrence of light leakage.
  • the problem is that the obstacle detection stop device 10 is activated and the rotation of the drive shaft 8 is stopped (the state shown in FIG. 11 in the first embodiment, and FIGS. 20 (c) to (d) in the second embodiment. 4), the angle V until the rotation of the winding cone 9 is started when the drive shaft 8 is rotated in the pulling direction is set to 80 degrees or more.
  • the obstacle detection / stop device 10 does not necessarily have to be a separate body from the winding cone 9, and the winding cone 9 has the configuration of the obstacle detection / stop device 10 as in Patent Document 1. It may be a part.
  • the upper limit of the angle V is not particularly defined, but if this angle V is too large, the accuracy of obstacle detection is lowered, for example, 300 degrees.
  • the angle V is, for example, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, It is 280, 290, and 300 degrees, and may be within a range between any two of the numerical values exemplified here.
  • the head box the solar shading material supported by being suspended from the head box, the elevating cord for raising and lowering the solar shading material, and the elevating cord disposed in the head box.
  • a winding cone that performs winding and rewinding, a drive shaft that rotates the winding cone, and a rotation of the drive shaft that detects a decrease in tension applied to the lifting cord when the solar shading material is lowered.
  • An obstacle detection stop device that stops the rotation of the drive shaft when the drive shaft is rotated in the pulling-up direction of the solar shading material after the drive shaft stops rotating.
  • a solar radiation shielding device is provided in which the idling angle V from the start to the start of rotation of the winding cone is 80 degrees or more.
  • the solar shading device is a horizontal blind
  • the solar shading material is a plurality of slats arranged side by side, and includes a tilt mechanism that rotates integrally with the drive shaft and changes the tilt angle of the slats.
  • the tilt mechanism includes a tilt drum that rotates integrally with the drive shaft, a tilt spring attached to the tilt drum, and a ladder cord that supports the slat and has an upper end attached to the tilt spring.
  • First and second ladder cords 5 and 6 are suspended from the lower surface 3 a of the head box 3.
  • Each of the ladder cords 5 and 6 includes a plurality of pairs of weft yarns 5b and 6b between a pair of warp yarns 5a and 6a.
  • a bottom rail 7 is attached to the lower ends of the ladder cords 5 and 6.
  • a slat 9 is supported on each pair of wefts 5b, 6b of the ladder cords 5, 6.
  • the slat 9 is a relatively thick wooden slat, but the thickness and material of the slat are not particularly limited.
  • the first and second elevating cords 13 and 14 are suspended on opposite sides in the front-rear direction across the slat 9.
  • the elevating cords 13 and 14 are suspended from the outside in the front-rear direction than the ladder cords 5 and 6, respectively.
  • the first ladder cord 5 has a first connecting portion 5c through which the first elevating cord 13 is slidably inserted in the vertical direction, and a notch 9a provided in the slat 9 on the side where the first elevating cord 13 is suspended. Is engaged.
  • the second ladder cord 6 has a second connecting portion 6c that allows the second elevating cord 14 to be slidably inserted in the vertical direction, and is not engaged with the notch of the slat 9.
  • the connecting portions 5c and 6c are small rings called pico, for example. However, the connecting portions 5c and 6c do not necessarily have a ring shape, and the elevating cords 13 and 14 can be slidably connected to the ladder cords 5 and 6 in the vertical direction. Anything is acceptable.
  • the positions and pitches at which the connecting portions 5c and 6c are provided are not particularly limited as long as the elevating cords 13 and 14 can be appropriately connected to the ladder cords 5 and 6, and the connecting portions 5c and 6c are positions corresponding to the slats 9. It may be provided in a single slat or a plurality of slats. Further, the positional relationship between the connecting portions 5c, 6c and the slats 9 is not particularly limited, and the height positions where the connecting portions 5c, 6c are provided may be either on the upper side or the lower side of the slats 9, and are as high as the slats 9. It may be.
  • the connecting portions 5c and 6c are provided at positions slightly below the slats 9. By disposing the connecting portions 5c and 6c at such positions, it is possible to effectively prevent the lateral displacement of the slats 9 during folding.
  • the ladder cords 5 and 6 are folded while being meandering in order from the lower stage due to the rise of the bottom rail 7, but are fixed to the lifting cords 13 and 14 that are tensioned during the folding. Since the connected portions 5c and 6c are located slightly below the slats 9, the effect of fixing the positions of the ladder cords 5 and 6 in advance occurs, so that the slats 9 are folded without being laterally displaced. To go.
  • the first ladder cord 5 that engages with the notch 9a
  • the one at the center is the second ladder cord 6 that does not engage with the notch 9a.
  • the second ladder cord 6 is not limited to such a configuration, and two of the two ends are not engaged with the notch 9a, and the first ladder cord 5 is engaged with the notch 9a.
  • the number of ladder codes is not limited to three, and may be four or five. When the number of ladder codes is four, for example, two at both ends are the first ladder codes 5 and the two at the center are the second ladder codes 6, or vice versa. Further, the first ladder code 5 and the second ladder code 6 may be arranged alternately. Further, the lifting / lowering cord does not have to be disposed adjacent to all the ladder cords, and there may be a ladder cord that is not paired with the lifting / lowering cord.
  • the notch 9a has a tapered surface 9b that spreads outward in the front-rear direction of the slat 9. As shown in FIG. According to such a configuration, even when the lateral displacement of the slat in the width direction is caused by swinging the first ladder cord 5 in the width direction when the slat is folded, the weft 5b and the first ladder cord 5 are removed from the notch 9a. Even if it is difficult to disengage, for example, the weft 5b and the first ladder cord 5 are pulled back by the tapered surface 9b of the notch 9a, the weft 5b and the first ladder cord 5 are re-engaged with the notch 9a. Cheap. Thereby, the lateral shift
  • the size of the second connecting portion 6c is larger than that of the first connecting portion 5c.
  • the range in which the 2nd raising / lowering cord 14 can move in the front-back direction in the 2nd connection part 6c is larger than the range in which the 1st raising / lowering cord 13 can move in the front-back direction in the 1st connection part 5c.
  • the distance between the first lifting / lowering cord 13 and the first ladder cord 5 is the same as that of the second lifting / lowering cord 14. The distance is shorter than the distance between the second ladder cords 6.
  • the weft 5b of the first ladder cord 5 is slightly shorter than the weft 6b of the second ladder cord 6. According to such a configuration, as shown in FIG. 24C, the intersecting portion 5d of the pair of weft yarns 5b and the warp yarns 5a are easily held in the notches 9a.
  • the weft yarn 5 b of the first ladder cord 5 may have the same length as the weft yarn 6 b of the second ladder cord 6.
  • the warp 5a is easily detached from the notch 9a, it is preferable to dispose the intersecting portion 5d in the notch 9a.
  • the pair of weft yarns 6b of the second ladder cord 6 may or may not intersect with each other, but the presence of the intersecting portion 6d is preferable because the followability of the slats 9 to the movement of the weft yarn 6b is improved.
  • the lifting / lowering cords 13 and 14 are positioned and wound by the lifting / lowering cord guide portions (for example, pulleys) 19 and 20 provided on the front side and the rear side of the head box 3, respectively.
  • the drum is wound around the drums 21a and 21b.
  • the winding drums 21 a and 21 b can be rotated by rotating the drive shaft 22.
  • the method for rotating the drive shaft 22 is not particularly limited, and an operation cord is hung on a pulley fixed to the drive shaft 22 so as not to rotate, and the pulley is rotated by pulling the operation cord to rotate the drive shaft 22.
  • the drive shaft 22 may be rotated using an electric motor.
  • the lifting / lowering means is not limited to a winding drum type lifting / lowering means as shown in FIG. 25, and the lifting / lowering cord 13 inserted into the head box 3 through the lifting / lowering cord guide portion 19 is connected to the head box 3. It may be a so-called direct pulling type lifting and lowering means that pulls out from another position and raises and lowers the bottom rail 7 by changing the pulling amount.
  • FIG. 25 the end on the head box side of the warp 5a of the ladder cords 5 and 6 is attached to a suspension ring (not shown) rotated by the drive shaft 22.
  • the suspension ring rotates within a predetermined movable range, and by this rotation, one of the warp threads 5a, 6a is pulled in the direction of the arrow X, and the other of the warp threads 5a, 6a is lowered in the direction of the arrow Y. Is tilted as shown in FIG. 26 to be fully closed.
  • the warp yarn 6a of the second ladder cord 6 is easily moved in the width direction with respect to the second lift cord 14 by the size of the second connecting portion 6c, but the second ladder cord 6 is engaged with the notch 9a. Since there is no match, there is no problem even if the movable range in the width direction is expanded. On the other hand, since the size of the first connecting portion 5c is relatively small, the warp yarn 5a of the first ladder cord 5 has a small movable range in the width direction with respect to the first elevating cord 13, and the weft yarn 5b and the first ladder cord 5 are notched. It is difficult to release the engaged state with 9a. With the above configuration, prevention of lateral displacement and prevention of slat opening are achieved.
  • the present invention can also be implemented in the following forms.
  • the notch 9a is preferably provided only on one side (for example, the outside of the room) of the slat 9 from the viewpoint of light shielding properties, but may be provided on both sides of the slat 9 (for example, the outside of the room and the inside of the room).
  • the notches 9 a on both sides of the slat 9 can be engaged with the first ladder cord 5.
  • the notch 9a and the first lifting / lowering cord 13 are disposed on the same side of the slat 9, but the first lifting / lowering cord 13 and the notch 9a are disposed on opposite sides of the slat 9. May be.
  • the size of the 1st connection part 5c should just be smaller than the 2nd connection part 6c in at least 1 of them. This is because the lateral displacement of the slat 9 can be prevented if the engagement state between the first ladder cord 5 and the notch 9a is difficult to be released in at least one first ladder cord 5.
  • the second ladder cord 6 is not engaged with the notch 9a of the slat 9, but is provided on one side (the same side as or opposite to the second lifting cord 14) or both sides of the slat 9. You may engage with a notch.
  • the slats 9 are held between the pair of weft threads 5b, but each slat 9 may be supported by a single weft thread 5b.
  • the lifting / lowering cords 13 and 14 are not inserted into the connecting portions 5c and 6c arranged corresponding to the uppermost slat 9, and correspond to the second slat 9.
  • spiral extending members 5e and 6e are inserted into the connecting portions 5c and 6c, and the lifting cords 13 and 14 are inserted into the extending members 5e and 6e.
  • the lifting cords 13 and 14 are inserted into the connecting portions 5c and 6c as in the first embodiment.
  • the lifting cords 13 and 14 particularly have a force that pulls the warp threads 5a and 6a of the ladder cords 5 and 6 outward in the front-rear direction. Since it is strong, the lifting / lowering cords 13 and 14 and the connecting portions 5c and 6c are completely separated or the lifting and lowering cords 13 and 14 and the connecting portions 5c and 6c are connected via the extension members 5e and 6e. This is to suppress the pulling of the warp yarns 5a and 6a by 14. Moreover, when the extension members 5e and 6e are used, the friction between the raising / lowering cords 13 and 14 and the connection parts 5c and 6c can be reduced, and durability of the connection parts 5c and 6c can be improved.
  • the lifting / lowering cords 13 and 14 are not necessarily inserted through all the connecting portions 5c and 6c, and the lifting / lowering cords 13 and 14 and the connecting portions 5c and 6c are connected via the extending members 5e and 6e. May be. Further, the extension members 5e and 6e may be used only in any one of the connection portions 5c and 6c. Also in the connection portions 5c and 6c closest to the head box 1, the lifting cords 13 and 6e are connected via the extension members 5e and 6e. 14 may be connected to the connecting portions 5c and 6c.
  • the connecting portions 5c and 6c are arranged slightly below the slat 9 as in the first embodiment. Further, the connecting portions 5c, 6c closest to the head box 1 are connected to the lifting / lowering cords 13, 14 via the extending members 5e, 6e. Also in such an embodiment, the effect of preventing lateral displacement of the slats 9 and the effect of improving the durability of the connecting portions 5c and 6c are obtained.
  • the connecting portions 5 c and 6 c are arranged at the same position as the wefts 5 b and 6 b, that is, at the same position as the slats 9. With such a configuration, the lateral displacement of the slat 9 can be effectively suppressed.
  • the ladder cords 5 and 6 are folded while being meandered in order from the lower stage by raising the bottom rail 7. Tension is applied to the lifting cords 13 and 14.
  • connection portions 5c and 6c When the connecting portions 5c and 6c are present at the same position as the slat 9, the connecting portions 5c and 6c are fixed without being displaced by the connecting portions 5c and 6c to which the tension of the elevating cords 13 and 14 is applied. Since there is a slat 9, the lateral displacement of the slat 9 is suppressed.
  • only the connection part 5c may be arrange
  • the sizes of the first connecting portion 5c and the second connecting portion 6c are substantially the same, but the length of the weft 6b of the second ladder cord 6 is the first ladder cord. It is 1.1 times or more the length of the 5 weft 5b.
  • L2 / L1 is, for example, 1.1 to 2, preferably 1.2 to 1.5. This is because if L2 is too large, the function of holding the slats 9 is too low.
  • the distance between the warp yarn 6 a of the second ladder cord 6 and the second lifting cord 14 does not increase, but the slat 9 held by the weft yarn 6 b of the second ladder cord 6 is Since the movable range in the front-rear direction is large, the slat 9 approaches the first lifting / lowering cord 13 and the outward force in the front-rear direction received by the ladder cords 5 and 6 from the lifting / lowering cords 13 and 14 is relaxed, and the opening of the slat 9 is reduced. As a result, the shielding property is improved.
  • the horizontal blind as the solar shading device shown in FIG. 32 is supported by hanging a plurality of slats 3 as solar shading materials through a plurality of ladder cords 2 suspended from the head box 1.
  • the bottom rail 4 is suspended and supported at the lower end.
  • a plurality of lifting cords 5 are suspended from the head box 1, the central lifting cord 5 is suspended on the front side (inside the room) of the slats 9, and the lifting cords 5 at both ends are connected to the slats 9. Hangs on the back side (outside the room).
  • the lifting cord 5 has an upper end wound around a winding shaft 9 disposed in the head box 1 and a lower end connected to the bottom rail 4.
  • the lifting / lowering cord 5 is wound or rewound based on the rotation of the winding shaft 9, and the bottom rail 4 and the slat 3 are lifted and lowered based on this rotation. Further, based on the rotation of the winding shaft 9, the angle of each slat 3 is adjusted in the same phase via the ladder cord 2. In addition, when each slat 3 is rotated to a substantially vertical direction, it will not be rotated any more.
  • the winding shaft 9 is rotatably supported by the support member 11, and the support member 11 is detachably fixed to the head box 1.
  • An operation unit 6 is provided at a position on the center side in the width direction from the right end of the head box 1, and the drive shaft 8 accommodated in the head box 1 can be rotationally driven based on the operation of the loop-shaped operation cord 7.
  • the winding shaft 9 is rotated based on the rotation of the drive shaft 8.
  • An operation code insertion hole 13 is provided at a position near the right end and a position near the left end of the head box 1, and the operation code 7 is placed outside the head box 1 through the code gate 15 in the right operation code insertion hole 13.
  • the left operation code insertion hole 13 is used when the operation unit 6 is moved to the left side of the head box 1, and when not used, FIG. As shown to (a), it is obstruct
  • FIG. Both ends of the head box 1 are closed with box caps 21.
  • the operation unit 6 includes an operation pulley 6a, and an operation cord 7 is hung on the operation pulley 6a.
  • the operation pulley 6a is rotatably supported between the case cap 6b and the gear case 6c.
  • the operation cord 7 is operated to rotate the operation pulley 6a, the rotation is transmitted to the drive shaft 8 through a transmission gear accommodated between the gear case 6c and the end cap 6d.
  • the configuration of the transmission gear is not particularly limited. For example, it is a planetary gear mechanism that decelerates the rotation of the operation pulley 6a and transmits it to the drive shaft 8. In the example of FIG.
  • the planetary gear mechanism includes a sun gear 6f that rotates integrally with the operation pulley 6a, a planetary gear 6g that is provided around the sun gear 6f, and a carrier that supports the planetary gear 6g so that it can rotate and revolve. 6h and an inner gear 6i provided on the inner surface of the gear case 6c and meshing with the planetary gear 6h. Then, the rotation of the operation pulley 6a is converted into the rotation of the carrier 6h, and the rotation of the carrier 6h is transmitted to the drive shaft 8 via the clutch unit 6e.
  • the clutch unit 6 e has a function of preventing the rotation of the drive shaft 8 due to the weight of the bottom rail 4 and smoothly transmitting the rotation of the operation pulley 6 a to the drive shaft 8.
  • the head box 1 includes a front protruding wall 1c and a rear protruding wall 1d extending from the front wall 1a and the rear wall 1b toward the center in the front-rear direction.
  • the operation unit 6 is slidably accommodated in a space 1f surrounded by the bottom wall 1e, the front wall 1a, the rear wall 1b, the front protruding wall 1c, and the rear protruding wall 1d.
  • the upper ribs 6b1 and 6b2 of the case cap 6b, the upper ribs 6c1 and 6c2 of the gear case 6c, and the upper surfaces of the upper ribs 6d1 and 6d2 of the end cap 6d abut or substantially abut against the lower surfaces of the protruding walls 1d and 1e, respectively.
  • the front and rear outer surfaces of the lower ribs 6b3 and 6b4 of the case cap 6b and the lower ribs 6c3 and 6c4 of the gear case 6c are in contact with or substantially against the inner surfaces of the front wall 1a and the rear wall 1b of the head box 1, respectively.
  • the operation unit 6 can slide in the width direction within the head box 1 without rattling. Further, a gap G1 is provided between the front surface 6b5 of the case cap 6b and the front wall 1a of the head box 1, and a gap G2 is provided between the front surface 6c5 of the gear case 6c and the front wall 1a of the head box 1, and the end A gap G3 is provided between the front surface 6d5 of the cap 6d and the front wall 1a of the head box 1. As will be described later, the gaps G1 to G3 are formed when the operation unit 7 is slid with respect to the head box 1 with the operation code 7 inserted through the operation code insertion hole 13. It functions as a code saving unit for reducing interference between the two.
  • the code gate 15 includes a code gate body 15a, a code division 15b, and a pulley 15c.
  • the code division 15b has a symmetrical shape and has protrusions 15b1 on both sides in the width direction. By engaging the protrusion 15b1 with an engagement groove 15d provided at the approximate center in the vertical direction of the code gate body 15a, the code division 15b is detachably engaged with the code gate body 15a.
  • the pulley 15c has a bilaterally symmetric shape, has protrusions on both sides in the width direction, and engages the protrusions with an engagement groove 15e provided in the lower part of the code gate body 15a. Since the pulley 15c does not need to be removed once it is engaged with the engagement groove 15e, the pulley 15c is normally engaged with the engagement groove 15e so as not to be removed.
  • the operation cord 7u from the upper outlet of the operation pulley 6a passes between the cord division 15b and the upper guide wall 15f of the cord gate body 15a, and the operation cord 7b from the lower outlet of the operation pulley 6a is separated from the cord division 15b. Pass between pulleys 15c. In this way, the operation codes 7u and 7b are separated vertically by the code division 15b.
  • the operation codes 7u and 7b are referred to as “operation code 7” when it is not necessary to distinguish them.
  • the code gate body 15a has a lower engaging groove 15h at the tip of the lower protruding piece 15i and a set pin insertion hole 15g at the upper portion. As shown in FIG. 35 (d), the operation code insertion hole 13 is provided. With the lower engaging groove 15h engaged with the bottom wall front end 13a and the set pin insertion hole 15g protruding into the head box 1, the set pin 19 is inserted into the set pin insertion hole 15g in the head box 1. By doing so, the code gate 15 is fixed to the head box 1. In a state where the lower engaging groove 15h is engaged with the bottom wall front end 13a, as shown in FIGS.
  • the lower protruding piece 15i of the cord gate body 15a is formed at the lower portion of the case cap 6b. It is sandwiched between the rib 6b3 and the lower rib 6c3 of the gear case 6c. In this state, the lower protruding piece 15i interferes with the lower ribs 6b3 and 6c3, and the sliding movement of the operation unit 6 becomes impossible, and the position of the operation unit 6 is stably fixed. As shown in FIG. 35 (f), the blind cap 17 is engaged with the operation cord insertion hole 13.
  • FIGS. 36A and 36B the box cap 21, the set pin 19, and the cord gate 15 are removed from the head box 1 on the right side of the head box 1.
  • FIGS. 33A and 33C when the set pin 19 is pulled out from the set pin insertion hole 15g, the code gate 15 can be removed from the head box 1, and the code division 15b is removed from the code gate body 15a. Then, the operation cord 7 can be pulled out from the cord gate body 15a.
  • FIG. 36C the operation unit 6 is removed from the head box 1 by sliding the operation unit 6 with respect to the head box 1.
  • the operation code 7 is retracted in the gaps G2 and G3, the operation code unit 7 can be smoothly slid and moved without the operation code 7 strongly interfering with the head box 1. Thereafter, as shown in FIG. 36 (d), the operation cord 7 is pulled out from the operation cord insertion hole 13, the operation cord insertion hole 13 is closed using the blind cap 17, and the box cap 21 is attached.
  • FIG. 37A the box cap 21 and the blindfold cap 17 are removed on the left side of the head box 1.
  • FIG. 37 (b) the operation cord 7 is inserted through the operation code insertion hole 13 on the left side of the head box 1.
  • FIG. 37 (c) the operating unit 6 is fitted to the head box 1 and the operating unit 6 is operated with respect to the head box 1 until the operating pulley 6 a comes to the position of the operating code insertion hole 13.
  • the unit 6 is slid.
  • the operation unit 6 can be slid smoothly without causing the operation code 7 to strongly interfere with the head box 1.
  • the operation cord 7 is inserted into the opening of the cord gate body 15a, and the operation cord 7u from the upper outlet of the operation pulley 6a and the operation cord from the lower outlet are provided.
  • the code division 15b is attached to the code gate main body 15a so as to separate 7b vertically, and the state shown in FIG. 37C is obtained.
  • the cord gate 15 is engaged with the operation cord insertion hole 13, and as shown in FIGS. 33 (a) and 33 (c), the set pin 19 is inserted into the set pin insertion hole 15g.
  • the cord gate 15 is fixed to the head box 1 by being inserted into the head box 1. As a result, the operation unit 6 cannot slide with respect to the head box 1. Thereafter, the box cap 21 is attached, and the movement of the operation unit 6 is completed.
  • the present invention can also be implemented in the following embodiments.
  • -It can also be applied to a pleated screen or a roman shade having an operation unit in the head box.
  • a member other than the cord gate 15 may be used to make the operation unit 6 unslidable with respect to the head box 1.
  • a component that can be moved in and out of the operation unit 6 is provided in the operation unit 6 and the operation unit 6 cannot be slid relative to the head box 1 by engaging the component with the head box 1 or the code gate 15. You may make it.
  • -The number of operation code insertion holes 13 may be one. In this case, the position of the operation unit 6 cannot be moved, but an effect that the operation unit 6 can be easily replaced when the operation unit 6 breaks down is obtained.
  • -Two or more operation code insertion holes 13 may be provided on one side of the head box 1. In this case, the position of the operation code 7 can be changed according to the user's preference.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Blinds (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
PCT/JP2014/061681 2013-05-08 2014-04-25 カムユニット、横型ブラインド、日射遮蔽装置の駆動ユニット WO2014181706A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BR112015027803-5A BR112015027803B1 (pt) 2013-05-08 2014-04-25 Unidade de came
AU2014263713A AU2014263713B2 (en) 2013-05-08 2014-04-25 Cam unit, horizontal blind, and drive unit for sunlight blocking device
KR1020157034527A KR102116717B1 (ko) 2013-05-08 2014-04-25 캠 유닛, 횡형 블라인드, 일사차폐 장치의 구동 유닛
CN201480025588.4A CN105209707B (zh) 2013-05-08 2014-04-25 凸轮单元

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2013098443A JP6243138B2 (ja) 2013-05-08 2013-05-08 横型ブラインド
JP2013-098443 2013-05-08
JP2013101001A JP6151556B2 (ja) 2013-05-13 2013-05-13 日射遮蔽装置の駆動ユニット
JP2013-101001 2013-05-13
JP2013112944A JP6151571B2 (ja) 2013-05-29 2013-05-29 カムユニット
JP2013-112944 2013-05-29

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WO2014181706A1 true WO2014181706A1 (ja) 2014-11-13

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KR (1) KR102116717B1 (ko)
CN (1) CN105209707B (ko)
AU (1) AU2014263713B2 (ko)
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WO (1) WO2014181706A1 (ko)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150184458A1 (en) * 2012-07-30 2015-07-02 Hangzhou Wokasolar Technology Co., Ltd. Louver Roller Mechanism and Roller System with Gear Clutch Turning Mechanism
US10954716B2 (en) 2017-09-21 2021-03-23 Hunter Douglas Inc. Lift station for a covering for an architectural structure
US20220408959A1 (en) * 2021-06-25 2022-12-29 Leafy Windoware Co.,Ltd. Curtain cord winding device

Citations (1)

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Publication number Priority date Publication date Assignee Title
JP3965151B2 (ja) * 2003-12-18 2007-08-29 立川ブラインド工業株式会社 日射遮蔽装置の障害物検知停止装置

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JP2994552B2 (ja) 1994-04-05 1999-12-27 立川ブラインド工業株式会社 プリーツカーテン
US8356653B2 (en) * 2010-08-25 2013-01-22 Teh Yor Co., Ltd. Control module having a clutch for raising and lowering a window shade
CN102900347B (zh) * 2012-07-30 2014-02-26 杭州欧卡索拉科技有限公司 带凸轮插销翻转机构的百叶窗卷轮系统

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JP3965151B2 (ja) * 2003-12-18 2007-08-29 立川ブラインド工業株式会社 日射遮蔽装置の障害物検知停止装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150184458A1 (en) * 2012-07-30 2015-07-02 Hangzhou Wokasolar Technology Co., Ltd. Louver Roller Mechanism and Roller System with Gear Clutch Turning Mechanism
US9580958B2 (en) * 2012-07-30 2017-02-28 Hangzhou Wokasolar Technology Co., Ltd. Louver roller mechanism and roller system with gear clutch turning mechanism
US10954716B2 (en) 2017-09-21 2021-03-23 Hunter Douglas Inc. Lift station for a covering for an architectural structure
US20220408959A1 (en) * 2021-06-25 2022-12-29 Leafy Windoware Co.,Ltd. Curtain cord winding device

Also Published As

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BR112015027803B1 (pt) 2021-11-09
KR102116717B1 (ko) 2020-05-29
KR20160007553A (ko) 2016-01-20
BR112015027803A2 (pt) 2017-08-29
AU2014263713A1 (en) 2015-12-24
AU2014263713B2 (en) 2018-03-01
CN105209707B (zh) 2017-06-20
CN105209707A (zh) 2015-12-30

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