TWM525387U - Clutch type control device for a cordless blind - Google Patents

Abstract

Disclosed is a clutch type control device for a cordless blind, comprising a force-return mechanism and a braking mechanism. The braking mechanism includes an outer housing having an engaging chuck, a shaft connector having a gearshift lever, and a clutch rotor with a gearshift pattern disposed. Disposed on one end of the shaft connector are a plurality of engaging teeth. The axial distance between the gearshift lever and the engaging chuck is fixed. The gearshift pattern has a curtain-lowering disengagement position, a curtain-lifting disengagement position, and a curtain-stopping engagement position for positioning the gearshift lever so that the clutch rotor corresponding to the shaft connector can be operated with axial movement. The engaging teeth of the clutch rotor can be engaged with or disengaged from the engaging chuck of the outer housing. Thereby, the stop height of cordless curtain can be exactly controlled and operation safety can be upgraded.

Description

Clutch type cordless curtain control device

This creation is about the control device for the cordless curtains, especially for a clutch type cordless curtain control device.

In the early days, the rope-type curtain control device was used to control the rise and fall of the curtain. A brake controller was installed on the side of the track above the curtain, and a bead chain (or a drawstring) was placed by the brake controller, by pulling the bead chain. The rotation mode is used for switching operations such as the rise and fall of the curtain. However, the presence of the bead chain smells the death of the head of the slinged child. Therefore, in the recent specification of household products, countries have gradually banned the use of pull cord curtains in buildings. . Therefore, the cordless curtain is a necessary product at present, but even if the structure design of the cordless curtain is various, the operation of the lift switch is not as convenient as that of the drawstring curtain.

It is known that the operation of the cordless curtains can only be fully open and fully closed without cordless curtains. When the lifting operation of the weight crossbar at the bottom of the curtain is required, the lifting and lowering of the cordless curtains is stopped as expected by the user. At the designated location, the weight of the cordless curtain will become extremely important. Moreover, the stop control device or the weight crossbar of the cordless curtain is customized, and it is necessary to first determine the weight and size of the cordless curtain, and then design a corresponding stop control device and appropriate Weighted crossbar. If the match is wrong, there will be no cordless curtains that will be rushed during operation. The accident of falling down and easily hurting people is that there will be no cordless curtains that are all rolled up and cannot be fixed in a half-open state. In addition, the current cordless curtain control device includes a return force mechanism and a spring-damped stop brake mechanism. When the elastic member inside the return force mechanism or the stop brake mechanism is mechanically fatigued, the curtain can not be fully opened. Or the curtains are fully closed. In addition, the cordless curtains are lowered to the desired position and will still be rolled back for a short period of time, which causes inconvenience in use and user confusion.

In order to solve the above problems, the main purpose of the present invention is to provide a clutch type cordless curtain control device, which can precisely control the stop height of the cordless curtain and improve the safety in use, and the cordless curtain is provided. The allowable range can be expanded.

The purpose of this creation and solving its technical problems are achieved by the following technical solutions. The present invention discloses a clutch type cordless curtain control device, comprising a return force mechanism and a stop brake mechanism, the return force mechanism comprising a base, a first transmission rod connector housed in the base, and a An elastic member disposed in the base and coupled to the first transmission rod connecting member for providing a spring force for the curtain to be retracted and reset. The brake braking mechanism includes a housing coupled to the base, a second transmission rod connector housed in the housing, and a clutch rotor coupled to the second transmission rod connector. The system has a toothed chuck, one end of the clutch rotor is provided with a plurality of engaging teeth, and the second connecting rod connecting piece has a shifting lever protruding toward the shaft center. Whether the second transmission rod connector is housed in the The inner body of the outer casing is in a rotating state and a stopped state, and the axial distance of the gearshift lever to the toothed chuck is maintained constant. The outer diameter surface of the clutch rotor is provided with a recessed gear pattern, and the gear pattern has a curtain drop clutch point, a curtain rising clutch point and a curtain stop engagement point for sequentially positioning the gear shift lever. When the gear shifting lever moves to any point where the curtain lowering the clutching point and the curtain rising clutching point, the engaging teeth of the clutch rotor are disengaged from the toothed chuck of the outer casing, so that the second connecting rod is connected The piece is in a rotatable state. When the gearshift lever is moved to the curtain stop engagement point, the engaging teeth of the clutch rotor engage the toothed chuck of the outer casing such that the second transmission rod connector is in a non-rotatable state.

The purpose of this creation and solving its technical problems can be further realized by the following technical measures.

In the clutch type cordless curtain control device, the clutch rotor system may have a V-shaped guide bar, which may be located in the gear pattern for adjusting the gear shifting lever from the curtain to the blind point The movement of the moving point.

In the above-mentioned clutch type cordless curtain control device, the second transmission rod connecting member may be a cylindrical built-in rotor, and the center of the bottom of the second transmission rod connecting member may further be provided with a shaft center connecting hole.

In the clutch type cordless curtain control device, the housing system can be integrally connected with a built-in hollow shaft rod aligned with the shaft center connection hole.

In the clutch type cordless curtain control device, the stop brake mechanism may further comprise a non-slip bolt sleeve coupled to the clutch rotor and sleeved on the clutch The hollow shaft rod, wherein the anti-slip sleeve and the clutch rotor are further provided with at least one damping piece.

In the above-mentioned clutch type cordless curtain control device, the axial distance of the curtain locking engagement point to the engaging teeth may be greater than the axial distance of the curtain falling from the clutch point to the engaging teeth, or It is greater than the axial distance from the curtain rising clutch point to the engaging teeth.

In the above-mentioned clutch type cordless curtain control device, the first transmission rod connecting member may be a return force wheel, and the elastic element may be a scroll spring, and the returning force mechanism may further comprise a reed wheel. The teeth are coupled to the first transmission rod connector, and the elastic member is retractable to the reed wheel and one end of the elastic member is further connected to the first transmission rod connection.

In the clutch type cordless curtain control device, the first transmission rod connecting member may be a transmission bushing, and the elastic member may be a scroll spring, and the base may have a first housing chamber. And a second housing chamber, the first transmission rod connecting member and the elastic member can be accommodated in the first housing, and one end of the elastic member is connectable to the first transmission rod connecting member, and the elastic member is The other end can be fixed to the first housing chamber, and a reel can be accommodated in the second housing.

In the clutch type cordless curtain control device, one end of the first transmission rod connector may have a transmission bevel gear, and the elastic member may be a spiral reed, and the return force mechanism may further include a leaf spring. a bevel gear and a reed wheel coupled to the leaf spring bevel gear, the elastic element is retractable to the reed wheel and one end of the elastic element is further connected to the leaf spring bevel gear, the transmission bevel gear Department The tooth is connected to one of the helical gears of the leaf spring bevel gear.

By the above technical means, the creation can achieve the random stop of the cordless curtain and has the precision, and the elastic fatigue of the returning mechanism is ignored, and the weight change caused by the change of the size of the cordless curtain has a larger tolerance range. And further improve the safety of use, has the following advantages and effects:

1. In the clutch-type cordless curtain control device of the present invention, the user only needs to pull the curtain weight bar to change the positioning position of the gear shift lever of the clutch rotor in the gear shift pattern, thereby controlling the second transmission rod connector to be locked. Or a rotatable state to manipulate the falling, rising and stopping of the curtain. When the curtain is moved or lowered, the second curtain lowering operation can make the curtain stop again. When the curtain is raised, the first time The curtain descent operation can make the curtain move, which is very simple and convenient to operate.

2. The present invention protects the second transmission rod connector by the outer casing and limits its axial displacement, and the clutch rotor that rotates the linkage to the second transmission rod connector is axially positioned with the position of the gearshift lever in the gear shift pattern. The position is to lock or release the stop of the second transmission rod connector, because the axial distance of the gear shift lever to the toothed chuck is maintained constant, and the user can precisely control the lifting position of the cordless curtain.

H‧‧‧After the axial distance from the gear lever to the toothed chuck

100‧‧‧Clutch type cordless curtain control device

110‧‧‧Return institutions

111‧‧‧Base

111A‧‧‧ seat board

111B‧‧‧ spacer

111C‧‧‧Fixed components

112‧‧‧First transmission rod connector

113‧‧‧Flexible components

114‧‧‧Reed wheel

120‧‧‧stop brake mechanism

121‧‧‧Outer casing

122‧‧‧ toothed chuck

123‧‧‧ hollow shaft rod

130‧‧‧Second transmission rod connector

131‧‧‧shift lever

132‧‧‧Axis connection hole

140‧‧‧Clutch rotor

141‧‧‧Knitting teeth

142‧‧‧ Layout pattern

143‧‧‧The curtains fall off the clutch point

144‧‧‧ Curtains rise and fall

145‧‧‧Curtain stop engagement point

146‧‧‧V-shaped guide strip

147‧‧‧Deduction Department

150‧‧‧Slip sleeve

151‧‧‧damage film

200‧‧‧Clutch type cordless curtain control device

210‧‧‧Return agencies

215‧‧‧ first shell room

216‧‧‧Second shell

260‧‧‧Wire spool

270‧‧‧Upper cover

280‧‧‧ positioning guard ring

290‧‧‧ side cover

291‧‧‧

300‧‧‧Clutch type cordless curtain control device

310‧‧‧Return institutions

314‧‧‧ Reed wheel

317‧‧‧ Transmission bevel gear

318‧‧‧Reed bevel gear

319‧‧‧ helical gear

370‧‧‧Upper cover

371‧‧‧floor

380‧‧‧ positioning guard ring

Fig. 1 is a perspective view showing the combination of a clutch type cordless curtain control device according to a first embodiment of the present invention.

Figure 2: According to a first embodiment of the present invention, the clutch type cordless curtain control device partially cuts a three-dimensional schematic view of the stop brake mechanism.

Figure 3 is a schematic exploded view of the return mechanism of the clutch type cordless curtain control device according to the first embodiment of the present invention.

Figure 4 is a schematic exploded view of the stop brake mechanism of the clutch type cordless curtain control device according to the first embodiment of the present invention.

Fig. 5 is a cross-sectional view showing the first brake lever mechanism of the clutch type cordless curtain control device when the second transmission rod connector is not sleeved according to the first embodiment of the present invention.

Figure 6 is a schematic view showing the gear shift pattern of the clutch type of the clutch type cordless curtain control device for the positional movement of the shift lever in accordance with the first embodiment of the present invention.

Figure 7 is a schematic view showing the clutch rotor of the clutch type cordless curtain control device in a state in which the curtain is lowered relative to the outer casing according to the first embodiment of the present invention.

Figure 8 is a schematic view showing the position of the clutch rotor of the clutch type cordless curtain control device in the ascending state of the curtain relative to the outer casing according to the first embodiment of the present invention.

Figure 9 is a schematic view showing the position of the clutch rotor of the clutch type cordless curtain control device in the state in which the curtain is stopped relative to the outer casing according to the first embodiment of the present invention.

Figure 10: According to a second embodiment of the present invention, another clutch type cordless window A schematic perspective view of a combination of curtain control devices.

Figure 11 is a schematic exploded view of the clutch type cordless curtain control device according to a second embodiment of the present invention.

Figure 12 is a perspective view showing the combination of another clutch type cordless curtain control device according to the third embodiment of the present invention.

Figure 13 is a schematic exploded view of the clutch type cordless curtain control device according to a third embodiment of the present invention.

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the illustrations are simplified schematic diagrams, and only the schematic diagram is used to illustrate the basic architecture or implementation method of the present invention. The components and combinations related to this case, the components shown in the figure are not drawn in proportion to the actual number, shape and size of the actual implementation. Some size ratios are proportional to other related sizes or have been exaggerated or simplified to provide clearer description of. The actual number, shape and size ratio of the implementation is an optional design, and the detailed component layout may be more complicated.

According to the first embodiment of the present invention, a clutch type cordless curtain control device 100 is illustrated in a perspective view of the combination of FIG. 1 and a partial cutaway view of the brake mechanism. The clutch type cordless curtain control device 100 includes a return force mechanism 110 and a stop brake mechanism 120. FIG. 3 is a schematic exploded view of the force return mechanism 110 of the clutch type cordless curtain control device 100. FIG. 4 is a schematic exploded view of the stop brake mechanism 120 of the clutch type cordless curtain control device 100. Figure 5 shows the clutch type cordless curtain control The schematic diagram of the stop brake mechanism 120 of the device 100 when the second transmission rod connecting member is not disposed, and the sixth figure shows the gear shift pattern of the clutch type cordless curtain control device 100 for the gear shifting lever Schematic diagram of the positioning movement. Figure 7 is a schematic view showing the clutch rotor of the clutch type cordless curtain control device 100 in a state in which the curtain is lowered relative to the outer casing. FIG. 8 is a schematic view showing the position of the clutch rotor of the clutch type cordless curtain control device 100 in a state in which the curtain is raised relative to the outer casing. FIG. 9 is a schematic view showing the position of the clutch rotor of the clutch type cordless curtain control device 100 in a state in which the curtain is stopped relative to the outer casing.

Referring to FIGS. 1 to 3, the force-return mechanism 110 includes a base 111, a first transmission rod connector 112 received in the base 111, and a housing of the base 111 and coupled thereto. The elastic member 113 of the first transmission rod connecting member 112 is used to provide a spring force for the curtain to be retracted and reset. The first transmission rod connecting member 112 is connected to the curtain control rod by a through connection of a curtain control rod, that is, the shape of the connecting hole of the first transmission rod connecting member 112 corresponds to the sectional shape of the curtain control rod. . For example, the cross-sectional shape of the curtain control rod is a hexagonal shape or other non-circular cross-section, and the connection hole shape of the first transmission rod connecting member 112 is a corresponding hexagonal hole or other non-circular hole. The rotation of the curtain control rod can take up a curtain control rope. In this embodiment, the first transmission rod connecting member 112 is a return force wheel, and the elastic element 113 is a scroll spring. The returning force mechanism 110 further includes a reed wheel 114. The first transmission rod connector 112, the elastic member 113 is retracted by the reed wheel 114 and one end of the elastic member 113 is coupled to the first transmission rod connector 112. More specifically, the base 111 is mainly constructed by two seat plates 111A. The plurality of spacers 111B are provided with a plurality of spacers 111B for providing the accommodation space of the elastic member 113 and the reed wheel 114, and a plurality of fixing members 111C such as screws are spaced through the one plate 111A. The rod 111B is coupled to the spacer rod 111B of the other seat plate 111A so that the two seat plates 111A can be combined to constitute the base 110. When there is no external force, the elastic member 113 will be retracted by the first transmission rod connecting member 112 to the reed wheel 114, so that the cordless curtain is raised. When the cordless curtain is in a lowered state, the elastic member 113 will be retracted by the reed wheel 114 toward the first transmission rod connector 112 and generate a return spring force.

Referring to Figures 1, 2, 4 and 5, the brake mechanism 120 includes a housing 121 coupled to the base 111, a second transmission rod connector 130 received in the housing 121, and A set of clutch rotors 140 are incorporated into the second transmission rod connector 130. The outer casing 121 has a toothed chuck 122, and one end of the clutch rotor 140 is provided with a plurality of engaging teeth 141 (as shown in Fig. 4). In the present embodiment, the outer casing 121 is cylindrical, and the toothed chuck 122 is located inside the bottom of the outer casing 121. The outer side of the cylinder opening of the outer casing 121 may be provided with a plurality of through holes through which a plurality of screw systems may be coupled to the base 111. Preferably, the outer casing 121 is integrally connected with a built-in hollow shaft rod 123 for limiting the axial displacement of the second transmission rod connecting member 130 and allowing the curtain rod to pass through without the interlocking relationship.

Referring to Figures 2 and 4, the second transmission rod connector 130 has a shift lever 131 projecting toward the shaft center. The gear shifting lever 131 is specifically a metal rod having two diameters, and the larger diameter shaft is sleeved into the second transmission rod connecting member 130. The positioning hole has a smaller diameter shaft for projecting into one of the clutch patterns 140 of the clutch rotor 140. The second transmission rod connecting member 130 drives the clutch rotor 140 to rotate by the gear shifting lever 131, but the clutch rotor 140 is a shaft for engaging and disengaging the clutch with respect to the second transmission rod connecting member 130. Displacement. The axial distance H of the gear shift lever 131 to the toothed chuck 122 is maintained constant regardless of the second transmission rod connecting member 130 being accommodated in the outer casing 121 in a rotating state and a stopped state. Figures 7, 8, and 9). Specifically, the axial distance H is a fixed value of 1.0 to 3.0 cm, and more specifically, the axial distance H is a fixed value of 1.5 to 2.0 cm. Preferably, the second transmission rod connecting member 130 is a cylindrical inner rotor, and the center of the bottom of the second transmission rod connecting member 130 is provided with a shaft center connecting hole 132. The cylinder opening of the second transmission rod connecting member 130 can face the bottom of the outer casing 121, and the bottom of the second transmission rod connecting member 130 is buried in the cylinder opening of the outer casing 121. The hollow shaft rod 123 of the outer casing 121 is aligned with the shaft center connection hole 132. The shaft connecting hole 132 is connected to the curtain control rod by a through connection of a curtain control rod, that is, the shape of the shaft connecting hole 132 of the second transmission rod connecting member 130 corresponds to the curtain control rod The cross-sectional shape. For example, the cross-sectional shape of the curtain control rod is a hexagonal or other non-circular cross-section, and the shape of the axial connection hole 132 is a corresponding hexagonal hole or other non-circular hole.

Referring to Figures 2, 4, and 6 to 9, the outer surface of the clutch rotor 140 is provided with a recessed gear pattern 142 having a curtain drop clutch point 143, a curtain rise clutch point 144, and a The curtain stops the engagement point 145 for the sequential positioning of the gearshift lever 131 (as in the gearshift pattern 142 in FIG. 6). The path of movement inside). Referring to FIGS. 6-9, in the embodiment, the axial distance between the curtain stop engaging point 145 and the engaging teeth 141 is greater than the curtain falling clutch point 143 to the engaging teeth 141. The axial distance is also greater than the axial distance of the curtain rising clutch point 144 to the engaging teeth 141. As shown in Fig. 7, when the shift lever 131 is moved by the curtain stop engagement point 145 to the curtain drop clutch point 143, the cordless curtain is lowered. As shown in Fig. 8, when the shift lever 131 is moved from the curtain lowering clutch point 143 to the curtain rising clutch point 144, the cordless curtain is in a raised state. As shown in Fig. 9, when the shift lever 131 is moved from the curtain lift-off point 144 to the curtain stop engagement point 145, the cordless curtain is in a state of being released. Referring to FIGS. 6 and 9, the clutch rotor 140 has a V-shaped guide strip 146 located in the gear pattern 142 for adjusting the gear shift lever 131 from the curtain lift clutch point 144 to the curtain stop. The movement of the engagement point 145. In addition, the other end of the clutch rotor 140 is formed with a plurality of fastening portions 147 for fastening a slip-resistant sleeve 150 (as shown in FIG. 5).

As shown in FIGS. 7 and 8, when the gearshift lever 131 is moved to any point of the curtain drop clutch point 143 and the curtain lift clutch point 144, the engaging teeth 141 of the clutch rotor 140 are disengaged from the outer casing. The toothed chuck 122 of the 121 is such that the second transmission rod connector 130 is in a rotatable state. As shown in FIG. 9, when the gear shift lever 131 is moved to the curtain stop engagement point 145, the engaging teeth 141 of the clutch rotor 140 are engaged with the toothed chuck 122 of the outer casing 121, so that The second transmission rod connector 130 is in a non-rotatable state.

Please refer to Figures 4 and 5 again. In a specific structure, the stop brake The mechanism 120 further includes a non-slip sleeve 150 coupled to the clutch rotor 140 and sleeved to the hollow shaft rod 123. The anti-slip sleeve 150 and the clutch rotor 140 are provided with at least one damping piece. 151. Therefore, the anti-slip sleeve 150 is similar to the outer casing 121 so as to be non-rotatable, and is axially displaceable similarly to the clutch rotor 140. The clutch rotor 140 is rotatable relative to the anti-slip sleeve 150, and a frictional force is maintained between the clutch rotor 140 and the anti-slip sleeve 150. The fastening portions 147 of the clutch rotor 140 are fastened to the anti-slip sleeve 150 so that the anti-slip sleeve 150 is not detachable.

Therefore, the present invention provides a clutch type cordless curtain control device 100, which can achieve the random stop of the cordless curtain and has the precision, and the elastic fatigue of the return mechanism is ignored, and the size of the cordless curtain is changed. The heavy change has a larger allowable range and further improves the safety in use.

Referring to Figures 2 and 4, it can be further understood that the present invention discloses a stop brake mechanism 120 for a clutch type cordless curtain control device, which includes a housing 121 for coupling to a base 111, A transmission rod connecting member 130 housed in the outer casing 121 and a clutch rotor 140 disposed in the transmission rod connecting member 130. The base 111 can be a component of the return force mechanism 110; in various embodiments, the base 111 can also be a separate component separate from the return force mechanism 110. The outer casing 121 has a toothed chuck 121, and one end of the clutch rotor 140 is provided with a plurality of engaging teeth 141. As shown in the second and the ninth, when the transmission rod connecting member 130 in the outer casing 121 is rotated in the reverse clock direction corresponding to the rise and fall of the curtain, the transmission rod connecting member 130 shifts the clutch to drive the clutch. The rotor 140 is axially moved within the transmission rod connector 130 to the toothed chuck 122 such that the engagement teeth 141 of the clutch rotor 140 engage the toothed chuck 122 of the outer casing 121.

According to the second embodiment of the present invention, the same names and functions as those of the first embodiment are denoted by the same component numbers of the first embodiment, and the same detailed features are not described again. Another clutch type cordless curtain control device 200 is illustrated in the assembled perspective view of FIG. 10 and the elemental exploded view of FIG. The clutch type cordless curtain control device 200 includes a return force mechanism 210 and a stop brake mechanism 120. The stop brake mechanism 120 of the second embodiment has the same structure as the first embodiment.

Referring to FIG. 10 and FIG. 11 , the force-return mechanism 210 includes a base 111 , a first transmission rod connector 112 received in the base 111 , and a housing unit 111 and a linkage therebetween. The elastic member 113 of the first transmission rod connecting member 112 is configured to provide a spring force for the curtain to be retracted and reset. The brake mechanism 120 includes a housing 121 coupled to the base 111, a second transmission rod connector 130 received in the housing 121, and a set of the second transmission rod connector 130. The inner clutch shaft 140 has a toothed chuck 122, and one end of the clutch rotor 140 is provided with a plurality of engaging teeth 141, and the second transmission rod connecting member 130 has a shaft center. The shift lever 131 is protruded. The axial distance between the gear shifter 131 and the toothed chuck 122 is maintained constant regardless of whether the second transmission rod connector 130 is received in the outer casing 121 in a rotating state and a stopped state.

Please refer to Figures 6 to 9 for the outer diameter of the clutch rotor 140. A venting pattern 142 is provided. The gear pattern 142 has a curtain drop clutch point 143, a curtain lift clutch point 144, and a curtain stop engagement point 145 for sequentially positioning the gear shift lever 131. The gear shifter 131 is moved to any point of the curtain drop clutch point 143 and the curtain lift clutch point 144. The engaging teeth 141 of the clutch rotor 140 are disengaged from the toothed chuck 122 of the outer casing 121, so that The second transmission rod connecting member 130 is in a rotatable state. When the shifting lever 131 is moved to the curtain stopping engagement point 145, the engaging teeth 141 of the clutch rotor 140 are engaged with the teeth of the outer casing 121. The chuck 122 is coupled such that the second transmission rod connector 130 is in a non-rotatable state.

Referring to FIG. 11 again, in the embodiment, the first transmission rod connecting member 112 is a transmission sleeve, and the elastic element 113 is a spiral spring piece, and the base 111 has a first shell. The first connecting rod connecting member 112 and the elastic member 113 are received in the first housing chamber 215, and the inner end of the elastic member 113 is connected to the first driving rod. a connecting member 112, the outer end of the elastic member 113 is fixed to the first housing chamber 215, and a spool 260 is received in the second housing chamber 216 for receiving a curtain control rope and is provided for The curtain control lever is threaded so that the spool 260 rotates in synchronization with the curtain control lever. More specifically, an upper cover 270 is attached to the second housing chamber 216 to prevent the spool 260 from being exposed. A positioning guard ring 280 can be disposed between the upper cover 270 and the base 111 and away from the first housing chamber 215 to maintain the pivot of the curtain control lever without shaking. In addition, the pedestal 111 includes a side cover 290 that can be attached to the open side of the first housing chamber 215, and a plurality of flaps 291 are additionally disposed in the first housing chamber 215. It is located on both sides of the elastic member 113 to prevent distortion of the elastic member 113.

In the third embodiment of the present invention, the same names and functions as those of the first embodiment are denoted by the same reference numerals of the first embodiment, and the detailed features are not described again. Another clutch type cordless curtain control device 300 is illustrated in the assembled perspective view of Fig. 12 and the elemental exploded view of Fig. 13. The clutch type cordless curtain control device 300 includes a return force mechanism 310 and a stop brake mechanism 120. The stop brake mechanism 120 of the third embodiment has the same structure as the first embodiment.

Referring to FIG. 12 and FIG. 13 , the force-return mechanism 310 includes a base 111 , a first transmission rod connector 112 received in the base 111 , and a housing unit 111 . The elastic member 113 of the first transmission rod connecting member 112 is configured to provide a spring force for the curtain to be retracted and reset. The brake mechanism 120 includes a housing 121 coupled to the base 111, a second transmission rod connector 130 received in the housing 121, and a set of the second transmission rod connector 130. The inner clutch shaft 140 has a toothed chuck 122, and one end of the clutch rotor 140 is provided with a plurality of engaging teeth 141, and the second transmission rod connecting member 130 has a shaft center. The shift lever 131 is protruded. The axial distance between the gear shifter 131 and the toothed chuck 122 is maintained constant regardless of whether the second transmission rod connector 130 is received in the outer casing 121 in a rotating state and a stopped state.

Referring to FIGS. 6-9, the outer diameter surface of the clutch rotor 140 is provided with a recessed gear pattern 142, which has a curtain under the curtain. A drop point 143, a curtain rise clutch point 144, and a curtain stop engagement point 145 for sequentially positioning the shift lever 131, when the gear shift lever 131 is moved to the curtain drop clutch point 143 and the curtain rises At any point of the clutching point 144, the engaging teeth 141 of the clutch rotor 140 are disengaged from the toothed chuck 122 of the outer casing 121 such that the second transmission rod connecting member 130 is in a rotatable state when the shifting lever The 131 series is moved to the curtain stop engagement point 145, and the engaging teeth 141 of the clutch rotor 140 are engaged with the toothed chuck 122 of the outer casing 121 such that the second transmission rod connecting member 130 is not Rotating state.

Referring to FIG. 13 again, in the embodiment, one end of the first transmission rod connecting member 112 has a transmission bevel gear 317, and the elastic element 113 is a spiral reed, and the returning force mechanism 310 further includes A reed bevel gear 318 is coupled to the reed wheel 314 of the leaf spring bevel gear 318. The elastic element 113 is retracted by the reed wheel 314 and one end of the elastic element 113 is coupled to the leaf spring bevel gear. 318. The transmission bevel gear 317 is coupled to one of the helical gears 319 of the leaf spring bevel gear 318. An upper cover plate 370 is attached to the upper housing of the base 111 such that the first transmission rod connecting member 112 accommodated in the upper housing chamber is not exposed. A bottom plate 371 is attached to the lower casing of the base 111 such that the leaf spring bevel gear 318 and the reed wheel 314 housed in the lower casing are not exposed. In addition, a positioning guard ring 380 can be disposed between the upper cover 370 and the base 111 and away from the stopping brake mechanism 120 to maintain the pivot of the curtain control rod without shaking.

The above disclosure is only the preferred embodiment of the present invention, and of course, the scope of the present invention cannot be limited thereto, and therefore, the claim is made according to the present claim. Equivalent changes are still covered by this creation.

120‧‧‧stop brake mechanism

121‧‧‧Outer casing

122‧‧‧ toothed chuck

123‧‧‧ hollow shaft rod

130‧‧‧Second transmission rod connector

131‧‧‧shift lever

132‧‧‧Axis connection hole

140‧‧‧Clutch rotor

141‧‧‧Knitting teeth

142‧‧‧ Layout pattern

146‧‧‧V-shaped guide strip

147‧‧‧Deduction Department

150‧‧‧Slip sleeve

151‧‧‧damage film

Claims (10)

A clutch type cordless curtain control device comprises: a returning force mechanism, comprising a base, a first transmission rod connecting member accommodated in the base, and a housing and being coupled to the base The elastic member of the first transmission rod connecting member is configured to provide a spring force for receiving and resetting the curtain; and a stopping and braking mechanism includes a housing coupled to the base and a second housing received in the housing a transmission rod connector and a clutch rotor incorporated in the second transmission rod connection, the housing system having a toothed chuck, one end of the clutch rotor being provided with a plurality of engaging teeth, the second transmission rod The connecting member has a shifting lever protruding toward the shaft center, and the shifting lever is axially coupled to the axial direction of the engaging chuck when the second connecting rod connecting member is received in the outer casing body in a rotating state and a stopped state. The distance system is maintained to be fixed, and the outer diameter surface of the clutch rotor is provided with a recessed gear pattern, and the gear pattern has a curtain drop clutch point, a curtain rising clutch point and a curtain stop engagement point for the row Positioning the rods in sequence, when the gear shifting lever moves to any point where the curtain is lowered and the lifting point of the curtain is raised, the engaging teeth of the clutch rotor are disengaged from the toothed chuck of the outer casing, so that The second transmission rod connecting member is in a rotatable state, and when the shifting lever is moved to the curtain stopping engagement point, the engaging teeth of the clutch rotor engage the engaging chuck of the outer casing, so that the The second transmission rod connector is in a non-rotatable state. For example, the clutch type cordless curtain control device described in claim 1 is The clutch rotor has a V-shaped guide strip disposed in the gear pattern for adjusting the movement of the gear shift lever from the rising point of the curtain to the engagement point of the curtain stop. The clutch type cordless curtain control device according to claim 1, wherein the second transmission rod connecting member is a cylindrical built-in rotor, and the center of the bottom of the second connecting rod connecting member is provided with an axial center. Connection hole. The clutch type cordless curtain control device of claim 3, wherein the outer casing system is integrally connected with a built-in hollow shaft rod aligned with the shaft center connection hole. The clutch-type cordless curtain control device of claim 4, wherein the brake braking mechanism further comprises a non-slip bolt sleeve coupled to the clutch rotor and sleeved to the hollow shaft rod, Wherein the anti-slip sleeve and the clutch rotor are provided with at least one damping piece. The clutch type cordless curtain control device according to claim 1, wherein the axial distance of the curtain locking engagement point to the engaging teeth is greater than the curtain falling clutch point to the engaging teeth. The axial distance is also greater than the axial distance from the rising point of the curtain to the engaging teeth. The clutch type cordless curtain control device according to any one of claims 1 to 6, wherein the first transmission rod connecting member is a repulsing wheel, and the elastic member is a spiral reed. The return force mechanism further includes a reed wheel coupled to the first transmission rod connector, the elastic element being retracted by the reed wheel and one end of the elastic element being coupled to the first transmission rod connection. The clutch type cordless curtain control device according to any one of claims 1 to 6, wherein the first transmission rod connecting member is a transmission sleeve, the elasticity The component is a scroll spring, the base has a first housing chamber and a second housing chamber, and the first transmission rod connector and the elastic component are housed in the first housing, the elastic component One end is connected to the first transmission rod connector, the other end of the elastic element is fixed to the first housing chamber, and a bobbin is housed in the second housing. The clutch type cordless curtain control device according to any one of claims 1 to 6, wherein one end of the first transmission rod connecting member has a transmission bevel gear, and the elastic member is a spiral spring a reed mechanism comprising a reed bevel gear and a reed wheel coupled to the leaf spring bevel gear, the elastic element being retracted by the reed wheel and one end of the elastic element being coupled to the leaf spring a bevel gear, the transmission bevel gear is coupled to one of the helical gears of the leaf spring bevel gear. A clutch type cordless curtain control device comprises: a housing for coupling to a base; a transmission rod connector housed in the housing; and a set of connectors connected to the transmission rod a clutch rotor; wherein the outer casing system has a toothed chuck, and one end of the clutch rotor is provided with a plurality of engaging teeth, and the transmission rod connecting member in the outer casing makes a forward clock corresponding to the rise and fall of the curtain Directional rotation switching, the transmission rod connecting member, that is, the shifting type, drives the clutch rotor to make axial movement in the transmission rod connecting member to the toothed chuck, so that the engaging teeth of the clutch rotor engage the outer casing The toothed chuck.