WO2006009033A1 - 日射遮蔽装置及び日射遮蔽装置の遮蔽材昇降装置 - Google Patents
日射遮蔽装置及び日射遮蔽装置の遮蔽材昇降装置 Download PDFInfo
- Publication number
- WO2006009033A1 WO2006009033A1 PCT/JP2005/012919 JP2005012919W WO2006009033A1 WO 2006009033 A1 WO2006009033 A1 WO 2006009033A1 JP 2005012919 W JP2005012919 W JP 2005012919W WO 2006009033 A1 WO2006009033 A1 WO 2006009033A1
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- WO
- WIPO (PCT)
- Prior art keywords
- input shaft
- shaft
- rotation
- drive shaft
- shielding material
- Prior art date
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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
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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
- E06B9/80—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling
- E06B9/82—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic
- E06B9/90—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for immobilising the closure member in various chosen positions
- E06B2009/905—Safety measures against dropping or unauthorised opening; Braking or immobilising devices; Devices for limiting unrolling automatic for immobilising the closure member in various chosen positions using wrap spring clutches
Definitions
- the present invention relates to a solar shading device such as a horizontal blind, a pleated curtain, a scooping curtain, and a roll staple.
- a solar radiation shielding material is suspended and supported from a head box, or a solar radiation shielding material is suspended and supported from a take-off shaft.
- the former are horizontal blinds, pleated curtains, and draped curtains.
- the latter is a roll screen, a shutter or the like.
- a multi-stage slat (sunlight shielding material) and a bottom rail are suspended and supported via a plurality of ladder cords suspended from the headbox.
- a zigzag curtain fabric (sunlight shielding material) is suspended from the headbox.
- some curtains are draped with a bottom rail supported at the lower end of the curtain fabric (sunlight shielding material), and others with a weight suspended at the lower end of the lifting / lowering cord.
- a plurality of elevating cords are inserted into the solar shading material, and one end (upper end) of the elevating cord is attached to a take-up shaft provided in the head box. The other end (lower end) is connected to a bottom rail or a weight.
- the solar shading material is pulled up by operating the winding shaft in the winding direction of the lifting cord, and the solar shading material is lowered by operating the winding shaft in the unwinding direction of the lifting cord. It is configured to let you.
- the screen which is a solar shading material, is suspended and supported from the take-up shaft, and the screen is lifted by operating the take-up shaft in the screen winding direction and operated in the rewind direction. It is configured to lower the screen.
- Patent Document 1 a clutch device is interposed in an operating device for a horizontal blind, and when the slat is lowered, the clutch device is disconnected and the slat is lowered by its own weight.
- a configuration for increasing the descent speed of the slats is disclosed.
- Patent Document 2 discloses a configuration in which the operating force required for lifting the shutter curtain is reduced by a lance spring, and the shutter curtain lifting speed is made higher than the lowering speed by a speed change mechanism! Speak.
- Patent Document 3 discloses a configuration including a driven sprocket for raising the shutter curtain and a driven sprocket for lowering the shutter curtain, and increasing the shutter curtain raising speed faster than the descending speed! .
- Patent Document 1 Japanese Patent No. 3140295
- Patent Document 2 JP-A-5-59878
- Patent Document 3 Japanese Patent Laid-Open No. 2000-136686
- Patent Document 2 does not disclose a configuration for increasing the descending speed. If the balance spring described in Patent Document 2 is made to act in the downward direction of the shutter curtain, the downward speed can be increased.
- Patent Document 3 also does not disclose a configuration for increasing the descending speed.
- An object of the present invention is to shield a solar radiation shielding device capable of controlling the descending speed of the solar radiation shielding material at a higher speed than the ascending speed while allowing the operating means to control the lifting speed and the descending speed of the solar radiation shielding material.
- the object is to provide a material lifting device.
- the present invention is based on an input shaft that rotates forward and backward based on the operation of the operating means, a drive shaft that rotates forward and backward based on the rotation of the input shaft, and the rotation of the drive shaft. Then, in the solar shading device provided with a take-up shaft for raising and lowering the shielding material in the head box, the rotation of the input shaft in the shielding material descending direction is increased from the rotation in the shielding material ascending direction and the drive is performed. Transmission means for transmitting to the shaft, and transmission blocking means for blocking rotation of the input shaft due to rotational force acting on the scraping shaft based on the weight of the shielding material.
- the transmission means connects the input shaft and the drive shaft directly when the input shaft is rotated in the shielding material pulling direction, and the input shaft is in the shielding material descending direction.
- a first transmission means for releasing a direct connection state between the input shaft and the drive shaft when rotated; and a direct connection between the input shaft and the drive shaft when the input shaft is rotated in a shielding material descending direction.
- second transmission means for increasing the rotation of the input shaft and transmitting it to the drive shaft after the state is released.
- the transmission preventing means rotates the input shaft side connecting member that rotates based on the rotational force of the input shaft and the drive shaft based on the rotation of the input shaft side connecting member.
- a torsion coil spring that is disposed between the connecting members and is fitted to the cylindrical portion that is fixed to the head bots, and the torsion coil spring has an end thereof.
- the input shaft rotated forward and backward based on the operation of the operating means
- the drive shaft rotated forward and backward based on the rotation of the input shaft
- the drive shaft In the shielding material lifting / lowering device of the solar shading device provided with a take-up shaft that lifts and lowers the shielding material based on the rotation, when the input shaft is rotated forward, the input shaft and the drive shaft are connected, When the input shaft is reversely rotated, the first transmission means for releasing the connection between the input shaft and the drive shaft, and when the connection between the input shaft and the drive shaft is released, the input shaft is reversely rotated.
- Second transmission means for increasing the speed of transmission to the drive shaft, and the second transmission means is always interposed between the input shaft and the drive shaft, and the first transmission means When the input shaft and the drive shaft are connected, a rotation difference absorbing means for invalidating the speed increasing operation is provided.
- the first transmission means includes first and second ratchet members supported so as to be relatively movable in the axial direction between the input shaft and the drive shaft, A cam machine that engages the first and second latch members based on the forward rotation of the input shaft and releases the engagement between the first and second latch members based on the reverse rotation of the input shaft.
- the rotation difference absorbing means is a one-way clutch that transmits only the reverse rotation of the input shaft.
- the second transmission means includes a first transmission gear that rotates as the input shaft rotates, a second transmission gear that meshes with the first transmission gear, A fourth transmission that rotates with the rotation shaft, a third transmission gear that rotates together with the rotation shaft, and a third transmission gear that rotates with the drive shaft and meshes with the third transmission gear.
- the reverse rotation of the input shaft is accelerated by the gear.
- the one-way clutch is omitted from any of the first to fourth transmission gears.
- the transmission blocking means for blocking the rotation of the input shaft by the rotational force acting on the take-off shaft based on the weight of the shielding material is provided between the drive shaft and the input shaft. Intervened.
- the shielding member is lowered based on the reverse rotation of the drive shaft!
- the operation means operates one of the endless operation cords to rotate the input shaft forward, and operates the other to rotate the input shaft reversely.
- the present invention it is possible to control the lifting speed and the lowering speed of the solar radiation shielding material with the operating means, while increasing the lowering speed of the solar radiation shielding material compared to the ascent speed, and to reduce the size.
- the shielding material raising / lowering device of the solar radiation shielding apparatus which can be planned can be provided.
- FIG. 1 (a) is a front view of a horizontal blind, and (b) is a plan view.
- FIG. 2 is a cross-sectional view of the driving force transmission device of the first embodiment.
- FIG. 3 is a cross-sectional view taken along line AA of the driving force transmission device.
- FIG. 5 (a) is a cross-sectional view of the driving force transmission device taken along the line CC, and (b) is a developed view of ratchet teeth.
- FIG. 6 is a cross-sectional view of the driving force transmission device taken along line BB.
- FIG. 7 is a cross-sectional view of the driving force transmission device taken along line EE.
- FIG. 8 is a cross-sectional view taken along the line D-D of the driving force transmission device.
- FIG. 9 is a cross-sectional view of a driving force transmission device according to a second embodiment.
- FIG. 10 is a sectional view of the driving force transmission device.
- FIG. 11 is a cross-sectional view of a driving force transmission device.
- FIG. 12 is a cross-sectional view of a driving force transmission device.
- First transmission means first and second ratchet members 28, 48, 51, 38 Second transmission means (first to third transmission gears, second latch member)
- Rotational difference absorbing means (one-way clutch)
- a multi-stage slat 3 is suspended and supported as a solar shading material via a plurality of ladder cords 2 suspended from the head box 1.
- FIG. An upper end portion of each ladder cord 2 is supported by a slat angle adjusting device (not shown) disposed in the head box 1, and a lower end is connected to the bottom rail 4.
- each lifting cord 5 suspended from the head box 1 is inserted into the slat 3, and each lifting cord 5 has its upper end rotatable within the head box 1.
- a bottom shaft 11 is attached to the support shaft 11 to be supported, and a lower end portion is connected to the bottom rail 4.
- a pulley case 6 is provided at one end of the head box 1, and an endless operation cord 7 is suspended from the pulley case 6.
- a pulley 1 is rotatably supported in the pulley case 6, and the pulley is rotated forward and backward by operation of the operation cord 7.
- a gear box 12 is disposed inside one end of the head box 1, and a driving force transmission device 9 is disposed adjacent to the gear box 12.
- the input shaft 8 of the driving force transmission device 9 is rotated forward and backward through the gear box 12.
- the driving force transmission device 9 rotates the slat drive shaft 14 forward and backward based on forward and reverse rotation of the input shaft 8.
- the slat drive shaft 14 is fitted into the take-up shaft 11.
- the take-up shaft 11 is rotated in the take-up direction of the elevating cord 5 and the elevating cord 5 is wound around the take-up shaft 11, and the slat 3 and the bottom Rail 4 is pulled up.
- the towing shaft 11 is rotated in the rewinding direction of the lifting / lowering cord 5, and the slat 3 and the bottom rail 4 are lowered.
- the slat angle adjusting device operates in parallel with the lifting and lowering operation of the slat 3, and each slat 3 is rotated in the same phase via the ladder cord 2. Is done. In addition, after each slat 3 is rotated to the almost vertical direction, it is further rotated in the same direction. The slat 3 is moved up and down in a state where is prevented.
- the head box 1 is fixed to a mounting surface such as an upper part of a window via mounting brackets 10 attached to at least both ends thereof.
- a specific configuration of the driving force transmission device 9 will be described. As shown in FIG. 2, the driving force transmission device 9 has a support frame 13 fixed in the head box 1, and the rotation of the input shaft 8 is transmitted to the slat drive shaft 14 by transmission means supported by the support frame 13. Communicated.
- a cylindrical portion 13a is formed on one side of the support frame 13, and the first rotating shaft 20 is rotatably supported by the cylindrical portion 13a. Further, a cylindrical fixing member 19 is non-rotatably fitted to the cylindrical portion 13a, and a first torsion coil spring 17 is fitted to the outer peripheral surface of the fixing member 19. Both end portions 17a, 17b of the first torsion coil spring 17 are bent so as to protrude outward in the radial direction.
- One end of the first rotating shaft 20 is fitted to one side of the second connecting member 18, and the outer peripheral surface force of the second connecting member 18 is also second locked to the first rotating shaft 20. Pin 22 is fitted. Therefore, the second connecting member 18 rotates integrally with the first rotating shaft 20.
- the input shaft 8 is rotatably inserted, and the input shaft 8 is inserted into a first connecting member 16 which is an input shaft side connecting member. ing.
- a first locking pin 15 is fitted into the input shaft 8 from the outer periphery of the first connecting member 16 so that the first connecting member 16 rotates integrally with the input shaft 8.
- the end portion of the first connecting member 16 extends to one end between the two end portions 17a, 17b of the first torsion coil spring 17, and the end portion of the second connecting member 18 also has both end portions 17a, 17a, It extends to the other side between 17b.
- the other end portion of the first rotating shaft 20 is fitted to one end portion of the middle shaft 21.
- An intermediate portion of the intermediate shaft 21 is inserted into a fixed drum 25 fixed to the support frame 13 and is rotatably supported.
- the intermediate shaft 21 is arranged on the outer peripheral surface of the intermediate shaft 21 on the first rotating shaft 20 side from the fixed drum 25.
- the first transmission gear 28 is rotatably fitted.
- the first transmission gear 28 is formed with a gear portion 28a on one side of a cylindrical portion, and the cylindrical portion is formed with a first cam hole 24 having a long hole shape in the circumferential direction. As shown in FIG. 3, the first cam hole 24 is formed in a range of 180 degrees with respect to the center.
- the first rotation shaft 20 and the first rotation shaft 20 are connected to each other by the third locking pin 23 that is fitted to the first rotation shaft 20 through the through hole 27 of the middle shaft 21 from the outer peripheral side of the first transmission gear 28.
- the first transmission gear 28 rotates in unison with the middle shaft 21, and the first rotation shaft 20 is within the range until the third locking pin 23 comes into contact with either of the two end portions 24a, 24b of the first cam hole 24. And can rotate relative to the center shaft 21
- a base end portion of a second rotating shaft 26 rotatably supported by the support frame 13 is fitted and inserted.
- a guide groove 29 shown in FIG. 4 is formed on the outer peripheral surface of the other end of the middle shaft 21.
- the guide groove 29 includes a circumferential groove 29a that meanders on the outer peripheral surface of the middle shaft 21 at intervals of 180 degrees, and a locking portion 29b that branches from the circumferential groove 29a to the other end side of the middle shaft 21.
- the locking portions 29b are formed at two positions with an interval of 180 degrees with respect to the center, and branch off from the circumferential groove 29a in an oblique direction of 45 degrees.
- a first ratchet member 30 is supported on the middle shaft 21 so as to be capable of rotating relative to the guide groove 29 and movable in the axial direction.
- the first ratchet member 30 includes A guide pin 31 projecting into the guide groove 29 is formed, and the guide pin 31 moves in the guide groove 29 when the center shaft 21 and the first ratchet member 30 rotate relative to each other. Accordingly, the guide groove 29 and the guide pin 31 constitute a cam mechanism.
- the first ratchet member 30 When the guide pin 31 is guided into the locking portion 29b, the first ratchet member 30 has the center shaft 21. It is moved in the axial direction toward the other end side. On the first ratchet member 30, ratchet teeth 33 are formed on the side surface on the other end side of the central shaft 21. As shown in FIGS. 5 (a) and 5 (b), eight of these ratchet teeth 33 are formed radially at 45 ° intervals with respect to the center of the first ratchet member 30.
- three connecting shafts 32 are fitted to the first ratchet member 30 on the side surface on the other end side of the middle shaft 21, and the tip of the connecting shaft 32 is inserted.
- the portion is loosely inserted into the annular clutch drum 35.
- the first latch member 30 rotates integrally with the clutch drum 35 and is relatively movable in the axial direction.
- the clutch drum 35 is located around the fixed drum 25. Between the clutch drum 35 and the fixed drum 25, the fixed drum 25 has a second torsion coil spring 34 with a second torsion. It is inserted. One end of the second torsion coil spring 34 is bent radially outward to form an engaging portion 34a.
- a clutch groove 36 for allowing the engaging portion 34a of the second torsion coil spring 34 to move relatively is formed in a range of 180 degrees with respect to the center. ing. Engaging ends 36a and 36b that engage with the engaging portion 34a are formed at both ends of the clutch groove 36.
- a second ratchet member 38 is fitted to the second rotating shaft 26, and is not relatively rotatable by the fourth locking pin 37. It is fixed so that it cannot move.
- the second ratchet member 38 is formed with ratchet teeth 39 similar to the ratchet teeth 33 of the first ratchet member 30, and the ratchet teeth 33, 39 face each other. Then, when the first ratchet member 30 moves toward the second ratchet member 38, both ratchet teeth 33 and 39 are engaged with each other, and the first ratchet member and the second ratchet member 38 are integrated. It starts to rotate! /
- the second ratchet member 38 is formed with a gear portion (fourth transmission gear) 38 a on the back side of the ratchet teeth 39.
- a support frame 13 or a cylindrical portion 13b that rotatably supports the second rotation shaft 26 is formed, and a support drum 44 is rotatably fitted to the cylindrical portion 13b.
- the fifth locking pin 45 is also inserted into the second cam hole 46 of the cylindrical portion 13b for the outer peripheral side force of the support drum 44.
- the second cam hole 46 is formed in a range of 180 degrees with respect to the center of the cylindrical portion 13b. Therefore, the support drum 44 can rotate relative to the cylindrical portion 13b within a range of approximately 180 degrees until the fifth locking pin 45 contacts either one of the end portions 46a and 46b of the second cam hole 46. .
- the second rotating shaft 26 penetrates the support drum 44, and a third connecting member 41 is fitted to the tip thereof.
- the second rotating shaft 26 and the third connecting member 41 are integrally rotated by the sixth locking pin 40 fitted into the second rotating shaft 26 from the outer peripheral side of the third connecting member 41. It is rolled.
- the fourth connecting member 42 and the slat drive shaft 14 are rotated by the seventh locking pin 47 fitted to the slat drive shaft 14.
- a third torsion coil spring 43 is fitted on the outer peripheral surface of the support drum 44, and as shown in FIG. 7, both end portions 43a and 43b are bent outward in the radial direction.
- One end of the third connecting member 41 is positioned between one end 43a and 43b of the third torsion coil spring 43, and one end of the fourth connecting member 42 is the third torsion coil spring 43. It is located on the other side between the end portions 43a and 43b. Then, when the third connecting member 41 presses one of the end portions 43a and 43b, the third torsion coil spring 43 is expanded in diameter, and the support drum Friction with 44 is reduced.
- the fourth connecting member 42 presses one of the end portions 43a and 43b, the third torsion coil spring 43 is reduced in diameter so that the friction with the support drum 44 increases. Therefore, when the second rotating shaft 26 is rotated and the third connecting member 41 is rotated, the fourth connecting member 42 and the slat drive shaft 14 are rotated in the body.
- a third rotating shaft 49 is rotatably supported by the support frame 13.
- a second transmission gear 48 is supported on one side of the third rotation shaft 49 via a one-way clutch 50, and the second transmission gear 48 has a gear portion that meshes with the gear portion 28a of the first transmission gear 28. 48a is formed.
- the number of teeth of the gear portion 48a is smaller than the number of teeth of the gear portion 28a. Accordingly, the rotational speed of the first transmission gear 28 is increased and transmitted to the second transmission gear 48.
- the one-way clutch 50 transmits only the rotation in one direction of the second transmission gear 48 to the third rotation shaft 49. That is, the rotation of the second transmission gear 48 is transmitted to the third rotation shaft 49 only when the input shaft 8 is rotated in the slat descending direction.
- a third transmission gear 51 having a gear portion 51a that fits into a gear portion 38a provided on the second ratchet member 38 is attached. .
- the third transmission gear 51 rotates integrally with the third transmission gear 51 by the eighth locking pin 52 fitted to the third rotation shaft 49 in the outer peripheral force of the shaft portion.
- the number of teeth of the gear portion 5 la is larger than the number of teeth of the gear portion 38a. Accordingly, the rotation of the third rotation shaft 49 is transmitted to the second ratchet member 38 at an increased speed via the third transmission gear 51.
- the first transmission gear 28 is rotated integrally with the first rotation shaft 20 after the third locking pin 23 abuts on the end 24a of the first cam hole 24.
- the guide groove 29 is rotated, and the guide pin 31 is moved along the guide groove 29. Specifically, when the lifting / lowering cord 5 is wound, the guide groove 29 is moved in the direction indicated by the arrow H in FIG. 4 and the guide pin 31 moves relative to the guide groove 29 in the direction indicated by the arrow I. Then, the guide pin 31 is guided from the circumferential groove 29a into the engaging portion 29b, and the first ratchet member 30 moves toward the second ratchet member 38 by force.
- the first latch member 30 and the clutch drum 35 rotate together with the inner shaft 21 as long as the guide pin 31 contacts the branch portion 29c of the guide groove 29 and the force is about 180 degrees. Thereafter, a slight frictional force acts on the clutch drum 35 via the second torsion coil spring 34, and the clutch drum 35 is held without rotating relative to the fixed drum 25.
- the third torsion coil spring 43 is expanded in diameter by the end face 43a of the third connecting member 41 coming into contact with the end 43a, so that the third connecting member 41 and the fourth connecting member 42 are integrated. Rotate to. Further, the fifth locking pin 45 has an end 46a of the second cam hole 46 (see FIG. 8) due to a slight frictional force between the inner peripheral surface of the third torsion coil spring 43 and the outer peripheral surface of the support drum 44. It will be in a state of abutting on.
- the rotation speed of the second transmission gear 48 and the third rotation shaft 49 is 4: 1, and the rotation direction is the same direction.
- This rotational difference is absorbed by the one-way clutch 50.
- the rotational force acting on the third connecting member 41 is transmitted to the second ratchet member 38 via the second rotating shaft 26, and the first ratchet member 30 that meshes with the second ratchet member 38. It is transmitted to.
- the rotational force acting on the middle shaft 21 is transmitted to the second connecting member 18 via the first rotating shaft 20. Then, the second connecting member 18 comes into contact with the end portion 17b of the first torsion coil spring 17, the diameter of the first torsion coil spring 17 is reduced, and the frictional force with the fixing member 19 increases. Accordingly, the rotation of the middle shaft 21 in the unwinding direction is prevented, and the rotation of the slat drive shaft 14 in the unwinding direction is prevented. As a result, the weight drop of the slat 3 and the bottom rail 4 is prevented.
- the middle shaft 21 is rotated based on the rotation of the first rotation shaft 20.
- the third locking pin 23 is rotated with the state force in contact with the end 24a of the first cam hole 24 also directed toward the end 24b. Accordingly, the rotation of the first rotation shaft 20 is rotated 180 degrees from the start of rotation, and is transmitted to the first transmission gear 28 after the third locking pin 23 contacts the end 24b of the first cam hole 24.
- the guide pin 31 When the lifting operation of the slat 3 is completed, the guide pin 31 is positioned at the tip of the locking portion 29b. The ratchet teeth 33 and the ratchet teeth 39 are in an engaged state. When the center shaft 21 rotates in the rewinding direction from that state, the guide pin 31 is in a state where a load is applied downward as shown in FIG. 4, so that the guide pin 31 remains in contact with the tip of the locking portion 29b. Since it does not move relative to the middle shaft 21, the engagement between the ratchet teeth 39 and the ratchet teeth 33 is not released.
- the clutch drum 35 attempts to rotate integrally via the connecting shaft 32. At that time, the force with the engagement end 36b of the clutch groove 36 in contact with the engagement portion 34a The clutch drum 35 rotates about 180 degrees in the K direction and the engagement end 36a contacts the engagement portion 34a. Then, the second torsion coil spring 34 is reduced in diameter and integrated with the fixed drum 25.
- the clutch drum 35 cannot rotate in the rewinding direction any more, and the first ratchet member 30 also cannot rotate, so that the guide pin 31 also cannot rotate.
- the guide pin 31 starts to move relative to the guide groove 29.
- a rotating force in the unwinding direction of the lifting / lowering cord 5 acts on the fourth connecting member 42 from the slat drive shaft 14.
- the end face 42a of the fourth connecting member 42 comes into contact with the end 43a of the third torsion coil spring 43, the diameter of the third torsion coil spring 43 is reduced, and the support drum 44 rotates in the rewind direction. The force is acting.
- the third torsion coil spring 43 is reduced in diameter, the third torsion coil spring 43 is rotated together with the support drum 44. Then, from the state where the fifth locking pin 45 is in contact with the end 46a of the second cam hole 46 (the state at the end of the winding operation), the support drum 44 is connected to the third connecting member 41 and the fourth It is rotated together with the connecting member 42 in the rewinding direction over a range of about 180 degrees (see FIG. 8).
- the second ratchet member 38 is rotated in the rewinding direction, and the third rotating shaft 49 is rotated through the gear portions 38a and 51a. This rotation is caused by the action of the one-way clutch 50. It is not transmitted to the second transmission gear 48.
- the angle of the slat 3 is adjusted within a range of about 180 degrees by the slat angle adjusting device. If the rotation of the input shaft 8 in the rewinding direction exceeds about 180 degrees, the rotation of the first ratchet member 30 stops as described above, so that the guide groove 29 shown in FIG. The guide pin 31 that is moved and inserted into the guide groove 29 is moved relative to the guide groove 29 in the H direction. The guide pin 31 that moves in the guide groove 29 in the H direction is moved from the locking portion 29b into the circumferential groove 29a. As a result, the first ratchet member 30 is separated from the second ratchet member 38.
- the rotation of the first rotation shaft 20 is transmitted to the first transmission gear 28, and the rotation is accelerated by the gear portion 28 a and the gear portion 48 a and transmitted to the second transmission gear 48. Since the rotation transmitted to the second transmission gear 48 is a rotation in a direction in which the lifting / lowering cord 5 is rewound, the rotation is transmitted to the third rotating shaft 49 via the one-way clutch 50, and The rotation is transmitted to the third transmission gear 51.
- the rotation of the third transmission gear 51 is accelerated through the gear portions 51a and 38a and transmitted to the second ratchet member 38.
- the rotation transmitted to the second ratchet member 38 is transmitted to the second rotating shaft 26, and the rotation of the second rotating shaft 26 is transmitted to the third connecting member 41.
- the third torsion coil spring 43 can rotate relative to the support drum 44 and is rotated in the L direction together with the fourth connecting member 42. Then, the slat drive shaft 14 is rotated based on the rotation of the fourth connecting member 42, and the elevating cord 5 is rewound. In this way, the rotation of the input shaft 8 is transmitted at an increased speed by the first transmission gear 28, the second transmission gear 48, the third transmission gear 51, and the second ratchet member 38, respectively. The rotational speed of the slat drive shaft 14 can be increased from the rotational speed of the input shaft 8.
- the ratio of the number of teeth of the gear portion 28a of the first transmission gear 28 and the gear portion 48a of the second transmission gear 48 is 2: 1
- the gear portion 38a of the second ratchet member 38 is If the ratio of the number of teeth of the gear portion 51a of the three transmission gear 51 is 1: 2, the rotational speed of the slat drive shaft 14 is increased to four times the rotational speed of the input shaft 8.
- first transmission gear 28 and the second transmission gear 48 rotated in the same direction as the input shaft 8 are reversely rotated.
- the third transmission gear 51 rotated in the same direction as the second transmission gear 48 and the second ratchet member 38 are reversely rotated. Accordingly, the rotation in the same direction as the input shaft 8 is transmitted to the second latch member 38, and the slat drive shaft 14 is rotated in the same direction as the input shaft 8.
- the third rotation shaft 49 and the second transmission gear 48 are connected via the one-way clutch 50, the third rotation shaft 49 rotates idly with respect to the second transmission gear 48. Accordingly, the rotation of the slat drive shaft 14 side force is prevented from being transmitted to the input shaft 8, and the drive force transmission device 9 is prevented from being damaged.
- the driving force transmission device 9 can rotate the slat drive shaft 14 at the same speed as the input shaft 8 when the slat 3 is pulled up, and can rotate the slat 3 when the slat 3 is lowered.
- the slat drive shaft 14 can be rotated at a rotational speed faster than the rotational speed. Therefore, the lowering speed of the slat 3 can be increased compared to the pulling speed of the slat 3.
- the lowering operation of the slat 3 is performed by operating the operation cord 7 and rotationally driving the slat drive shaft 14 in the slat lowering direction via the driving force transmission device 9. This can be done without using the weight of. Therefore, the operation of the operation code 7 can lower the slat 3 at an arbitrary lowering speed.
- the driving force transmission device 9 is configured so that the rotation of the slat drive shaft 14 is slower when the bottom rail 4 and the slat 3 are pulled up than when the bottom rail 4 and the slat 3 are lowered. . Therefore, the driving force transmission device 9 can rotate the slat drive shaft 14 with a stronger torque when the bottom rail 4 and the slat 3 are pulled up than when the bottom rail 4 and the slat 3 are pulled down. Therefore, the operator can pull up the bottom rail 4 and the slat 3 with a small operating force.
- the third locking pin 23 is connected to the end of the first cam hole 24 so that the lifting / lowering cord 5 of the input shaft 8 rotates in the rewinding direction. It is not transmitted to the first transmission gear 28 until it comes into contact with 24b. Further, the clutch groove 36 formed in the clutch drum 35 causes the clutch drum 35 to move in the rewinding direction until the engagement end 36a of the clutch groove 36 contacts the engagement portion 34a of the second torsion coil spring 34. Rotation is not hindered. Further, since the second cam hole 46 is formed in the tubular portion 13 b, the fifth locking pin 45 is connected to the end of the second cam hole 46.
- the rotation of the fourth connecting member 42 in the unwinding direction is not hindered until it comes into contact with the portion 46b. Accordingly, the first ratchet member 30 and the second ratchet member 38 are rewound by a load from the lifting / lowering cord 5 for 180 degrees with the first ratchet member 30 and the second ratchet member 38 engaged.
- the slat drive shaft 14 is rotated in the rewind direction of the lifting / lowering cord 5 after the slat 3 is pulled up, the slat drive shaft 14 is rotated until the slat drive shaft 14 is rotated 180 degrees. The speed is not increased.
- the first ratchet member 30 and the second ratchet member 38 are disposed on the same axis as the input shaft 8 and the slat drive shaft 14. Therefore, an increase in the radial dimension of the driving force transmission device 9 can be suppressed.
- FIG. 9 to 12 show a second embodiment.
- This embodiment shows a driving force transmission device for use in a lifting device such as a roll blind or a shutter, and only the portions different from the first embodiment will be described.
- the input shaft 8 is directly connected to the output shaft 62 of the motor 61, and the input shaft 8 becomes the first rotating shaft 20 of the first embodiment.
- the motor 61 is configured to have a braking function that prevents rotation of the output shaft 62 due to rotational force acting on the input shaft 8 when the operation is stopped.
- the clutch drum 35 may be configured to always engage with the engaging portion 34a of the second torsion coil spring 34 without providing a clutch groove.
- the support drum 44 is integrated with the support frame 13.
- the first cam hole 24 has the guide pin 31 extending from the circumferential groove 29a to the locking portion 2.
- the driving force transmission device of this embodiment can also be used as a lifting curtain or pleat curtain lifting device.
- the first cam hole 24, the clutch groove 36, and the second cam hole 46 are limited to 180 degrees as long as they can rotate the slat 3 to the maximum extent. It is not something.
- the solar shading device is a horizontal blind.
- the solar shading device 11 is used in a solar shading device that rotates the solar shading shaft 11 in both directions to raise and lower the solar shading material, such as a comb curtain or a pleated curtain. You can also.
- the one-way clutch that operates as described above may be interposed between the first transmission gear 28 and the center shaft 21.
- the one-way clutch that operates as described above may be interposed between the third transmission gear 51 and the third rotation shaft 49.
- the one-way clutch that operates as described above may be interposed between the second ratchet member 38 and the second rotating shaft 26. Further, the third rotating shaft 49 may be divided into two, and a one-way clutch that operates as described above may be interposed therebetween.
- the cam mechanism includes a guide groove formed along a circumferential direction of a central shaft disposed on the same axis as the input shaft, and the guide groove attached to the first lattice member. along 6.
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Blinds (AREA)
- Operating, Guiding And Securing Of Roll- Type Closing Members (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004208758A JP4729274B2 (ja) | 2004-07-15 | 2004-07-15 | 日射遮蔽装置の遮蔽材昇降装置 |
JP2004-208758 | 2004-07-15 |
Publications (1)
Publication Number | Publication Date |
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WO2006009033A1 true WO2006009033A1 (ja) | 2006-01-26 |
Family
ID=35785148
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/012919 WO2006009033A1 (ja) | 2004-07-15 | 2005-07-13 | 日射遮蔽装置及び日射遮蔽装置の遮蔽材昇降装置 |
Country Status (2)
Country | Link |
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JP (1) | JP4729274B2 (ja) |
WO (1) | WO2006009033A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4750663B2 (ja) * | 2006-09-29 | 2011-08-17 | 株式会社ニチベイ | ブラインドの昇降装置 |
JP5376708B2 (ja) * | 2008-10-21 | 2013-12-25 | 立川ブラインド工業株式会社 | 日射遮蔽装置の操作装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0559878A (ja) * | 1991-08-30 | 1993-03-09 | Sanwa Shutter Corp | 電動シヤツター |
JPH06117172A (ja) * | 1991-06-07 | 1994-04-26 | Denkoo Tekko Kk | シートシャッター装置 |
JPH08184327A (ja) * | 1994-12-28 | 1996-07-16 | Daito Seiki Kk | クラッチ機構及びそれを備えたロールスクリーン装置 |
JP2545115B2 (ja) * | 1988-06-15 | 1996-10-16 | 株式会社ニチベイ | ブラインド昇降装置 |
JP2000136686A (ja) * | 1998-10-30 | 2000-05-16 | Sanwa Shutter Corp | 電動シャッター |
JP3140295B2 (ja) * | 1994-05-31 | 2001-03-05 | 立川ブラインド工業株式会社 | 横型ブラインドのスラット昇降装置 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH061695U (ja) * | 1992-06-10 | 1994-01-14 | デンコー鉄構株式会社 | 手動巻き上げ可能な昇降速度可変式シートシャッタ |
-
2004
- 2004-07-15 JP JP2004208758A patent/JP4729274B2/ja not_active Expired - Fee Related
-
2005
- 2005-07-13 WO PCT/JP2005/012919 patent/WO2006009033A1/ja active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2545115B2 (ja) * | 1988-06-15 | 1996-10-16 | 株式会社ニチベイ | ブラインド昇降装置 |
JPH06117172A (ja) * | 1991-06-07 | 1994-04-26 | Denkoo Tekko Kk | シートシャッター装置 |
JPH0559878A (ja) * | 1991-08-30 | 1993-03-09 | Sanwa Shutter Corp | 電動シヤツター |
JP3140295B2 (ja) * | 1994-05-31 | 2001-03-05 | 立川ブラインド工業株式会社 | 横型ブラインドのスラット昇降装置 |
JPH08184327A (ja) * | 1994-12-28 | 1996-07-16 | Daito Seiki Kk | クラッチ機構及びそれを備えたロールスクリーン装置 |
JP2000136686A (ja) * | 1998-10-30 | 2000-05-16 | Sanwa Shutter Corp | 電動シャッター |
Also Published As
Publication number | Publication date |
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JP4729274B2 (ja) | 2011-07-20 |
JP2006028871A (ja) | 2006-02-02 |
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