Slat control device of Venetian blind

Blinds curtain control device

The present invention relates to a blind control device for a blind, especially for a control device that avoids chaotic winding of the drawstring of the blind.

According to the conventional venetian blind structure, which is composed of a transmission shaft core, a shaft body, a plurality of driven members and a roller blind body, the shaft body passes through the transmission shaft core and the driven member, and the driven member is provided. There is a drawstring, which can be controlled to open or close by pulling the drawstring, and the conventional drawstring is usually wound around the wheel groove of a runner, since the above components are arranged in the beam of the blinds, Therefore, when used in operation, the drawstring is liable to slip off the runner due to temporary slack during the pulling process, thereby affecting the smoothness of the operation, and if the lower side of the curtain is damaged by the foreign object, the runner is at this time. The pulling rope will be released due to continuous rotation, which will cause the rope to be messy or even tangled.

In view of the above-mentioned lack of the venetian blinds, the creators have finally developed a slat control device that can improve the existing venetian blinds through continuous experimentation and research.

The main technical means of the present invention is to provide a blind control device for a blind, comprising a fixing seat, a braking mechanism, a winding mechanism and a ladder seat, the fixing seat is disposed in the curtain rod seat, and the braking mechanism has a The gear disc, a spring and a spring piece can be used to spring the flap of the gear disc when the curtain is blocked by the foreign object while the curtain is being lowered, and the elastic piece is rotated and the top is rotated. The stop block of the ladder seat further stops the rotation of the first reel and the second reel in the winding mechanism to prevent the rope from being continuously released and causing chaotic winding effect.

The second technical means of the present invention is to provide a blind control device for a blind, comprising a fixing seat, a braking mechanism, a winding mechanism and a ladder seat, the fixing seat being disposed in the curtain rod seat, the winding mechanism having The first reel, the second reel and the positioning ring, the combination of the first reel and the second reel can form a reel to reel the flat cable and can be accommodated in the positioning ring, and By positioning the ring, the drawstring can be formed into a good position without being pulled out, so as to improve the smoothness of the drawstring.

Another technical means of the present invention is to provide a blind control device for a blind, the ladder seat can be provided for a bushing, and the bushing is additionally provided with a return spring, and the ladder seat is provided above the ladder seat The plurality of grooves are provided for the fixing rod to be pierced, wherein the groove is provided with a turning groove, and the turning groove can effectively achieve the effect of positioning the ladder rope.

In order to make it easier for your examiner to understand the structure of the creation and the efficiencies that can be achieved, the following description is provided:

First, referring to FIG. 1 , the blind control device for the venetian blind of the present invention has a fixing base 1, a braking mechanism 2, a winding mechanism 3 and a ladder seat 4.

The fixing base 1 is a U-shaped seat body, and one end is provided with a bearing portion 11 and the other end is provided with a pivot portion 12, and a fixing groove 13 is disposed at the bottom of the fixing base 1, and the fixing groove 13 is inside. The convex positioning rib 131 is at the bottom of the fixing groove 13 A pull cord hole 132 is disposed, and a ladder hole 14 is disposed on two sides of the retaining groove 13. A ring wall 141 is protruded from the bottom of the ladder hole 14 to the bottom of the fixed seat 1, and the fixed seat 1 is close to the pivot. A stop 15 is provided at the portion 12.

The brake mechanism 2 has a gear plate 21, a spring 22 and a spring piece 23. The gear plate 21 extends with a sleeve 211. The sleeve 211 is surrounded by a plurality of teeth 212 and an arc-shaped blocking piece 213. The elastic piece 23 has a through hole 231, and a tooth 232 corresponding to the tooth 212 of the gear plate 21 is provided around the elastic piece 23.

The winding mechanism 3 has a first reel 31, a second reel 32, and a positioning ring 33. The first reel 31 is provided with a receiving groove 311, a protruding post 312 and a through hole 313. The spring 22 of the brake mechanism 2 is accommodated, and the protrusion 312 is disposed through the through hole 231 of the elastic piece 23. The through hole 313 is disposed at the center of the first reel 31, and the through hole 313 is disposed on the first reel 31. A sleeve portion 314 is extended on one side, and a second hook portion 315 is further disposed on the second reel 32. The second reel 32 is provided with a shaft hole 321 in the center, and a clamping piece 322 is protruded around the shaft hole 321 . The sleeve 322 is disposed around the sleeve portion 314 of the first reel 31, and the card slot 323 is provided on the other side of the shaft hole 321 for the hook portion 315 of the first reel 31. The positioning ring 33 is disposed at the center of the positioning ring 33 for the first reel 31 and the second reel 32. A positioning seat 331 is disposed under the positioning ring 33. The positioning seat 331 is provided with a positioning slot 332 on both sides. The seat 331 is corresponding to the fixing groove 13 of the fixing base 1 , and the positioning ring 33 and the positioning seat 331 are provided with a through hole. The through hole 333 is further provided with a convex ring 334 inside the positioning ring 33.

The ladder seat 4, which is also referred to in FIG. 2, is a cylindrical body. One end of the ladder seat 4 is provided with a convex portion 41, and the convex portion 41 is reliably placed on the bearing portion 11 of the fixing base 1, the ladder belt A cover body 42 is disposed on the other side of the seat 4, and the cover body 42 can be disposed through a sleeve 43. The sleeve 43 is externally provided with a return spring 44, wherein the cover body 42 and the ladder seat 4 are disposed. A bump 45 is extended, and the ladder seat 4 is further provided with a stop block 46 on the inner side wall. Above the ladder seat 4, a plurality of grooves 47 are provided, which can be worn by the fixing rod 48. It is provided that a turning groove 471 is provided between the grooves 47.

In the implementation of the present invention, please match the drawing of the flat drawstring A on the outside of the sleeve portion 314 of the first reel 31, and then the card of the second reel 32, as shown in Figures 1, 3 and 4. The production piece 322 is sleeved on the outer side of the sleeve portion 314 of the first reel 31, so that one end of the pull cord A is fixed, and the joint of the first reel 31 and the second reel 32 can form a reel which is flat. The drawstring A is retracted and can be received in the positioning ring 33, and the protruding ring 334 on the inner side of the positioning ring 33 can form the pull cord A into a good position without coming out to lift the drawstring. Then, the spring 23 of the brake mechanism 2 is sleeved on the boss 312 of the first reel 31 with the through hole 231, and the spring 22 is placed in the receiving groove 311 of the first reel 31, and the gear is placed. The sleeve 211 of the disk 21 passes through the through hole 313 of the first reel 31, the above-mentioned components are disposed in the ladder seat 4, and the sleeve 43 is inserted into the cover 42 from the outside of the ladder seat 4, and is restored. The spring 44 is sleeved on the outer periphery of the sleeve 43; then the other end of the drawstring A is passed through the positioning ring 33. The hole 333, and then the pull cord A is passed through the pull cord hole 132 of the fixing base 1, and the positioning seat 331 of the positioning ring 33 is disposed in the fixing groove 13 of the fixing base 1, by positioning the positioning groove 332 of the seat 331, The positioning ribs 131 on the inner side of the fixing groove 13 of the fixing base 1 are engaged with each other to form a good positioning of the positioning ring 33, and the ladder rope B is embedded in the turning groove 471 of the ladder seat 4, and then The fixing rod 48 is disposed in the groove 47 above the ladder seat 4, so that the ladder rope B can be effectively positioned on the ladder seat 4 and form a fixing portion, and finally the rotating shaft 5 is passed through the sleeve 43, a sleeve 211 of the gear plate 21 and a hole in the center of the convex portion 41 of the ladder seat 4, and the fixing seat 1 is disposed in the curtain rod holder 6, so that the pull cord A passes through the through hole 61 of the curtain rod holder 6, and the ladder rope B passes through the ladder hole 14 of the fixing base 1 and the long slot 62 of the curtain rod holder 6, wherein the ring wall 141 of the fixing seat 1 can be inserted and positioned in the long slot 62 of the curtain rod holder 6. This completes the assembly of this creation.

Referring to Figures 4, 5 and 6, again, when the curtain of the blind is in the process of descending, the bottom end of the blind is blocked by the foreign object, and the curtain of the blind is formed to stagnate. The disk 21 will lose the pulling force of the curtain falling, at which time the gear plate 21 will no longer be stressed, and the spring 22 top will open the blocking piece 213 of the gear plate 21, and the teeth 212 of the gear plate 21 will drive the elastic piece 23 at this time. Actuated to cause the elastic piece 23 to abut against the stop block 46 of the ladder seat 4 by the gear, thereby stopping the rotation of the first reel 31 and the second reel 32 to prevent the continuous release of the drawstring A. The rope A can be prevented from being tangled. When the foreign object is removed, the rotating shaft 5 is re-energized. At this time, the rotating shaft 5 drives the gear plate 21 to rotate, and the blocking piece 213 on the gear plate 21 recompresses the spring 22. And drive the shrapnel 23 to rotate The stop block 46 of the ladder seat 4 is removed, and the first reel 31 and the second reel 32 can continue to rotate to release the drawstring A.

Referring to Figures 7 and 8, when the curtain of the venetian blind is opened and closed, the sleeve 43 is rotated by the rotating shaft 5 to rotate clockwise or counterclockwise, and the return spring 44 can be placed against the ladder. The bump 45 with the seat 4 drives the ladder seat 4 to rotate, and the stop portion 15 of the fixed seat 1 can effectively limit the rotation stroke of the ladder seat 4 to achieve an accurate opening and closing angle.

Please refer to FIG. 9 again, which is another embodiment of the present invention. When the ladder seat 4 of the present invention is implemented, the cloth belt C can also be applied, and the two ends of the ladder belt C are respectively disposed on the ladder. In the groove 47 above the seat 4, the fixing rod 48 is inserted through the groove 47 of the ladder seat 4, and the ladder belt C can be fixed to the ladder seat 4, thereby lifting the ladder seat 4 The utility of the utility model does not need to replace the ladder seat base 4 in response to the ladder rope B or the cloth ladder belt C, and at the same time achieves the purpose of saving the material cost of the additional re-made ladder belt seat 4.

The effect of the present invention is that by providing a brake mechanism 2 in the blind control device of the blind, the flap 22 can be effectively utilized by the spring 22 when the blind is blocked by the foreign object during the descending direction. When the 213 is bounced, the elastic piece 23 is rotated and abuts against the stop block 46 of the ladder seat 4, thereby stopping the rotation of the first reel 31 and the second reel 32 to prevent the rope A from being continuously released and causing confusion. In addition, when the curtain is opened and closed, the spring 44 is pressed against the bump 45 of the ladder seat 4 to drive the ladder seat 4 to rotate, and the stop portion 15 of the fixing base 1 is used. The rotation stroke of the ladder seat 4 can be effectively limited to achieve the effect of accurate opening and closing of the curtain.

In summary, the creation of the above-mentioned louver curtain control device can indeed achieve the purpose and effect of the invention, and is not found in the market, should have met the requirements for the creation of patents, and apply in accordance with the law, please ,, and grant the approval of the patent, to pray.

<p>1 fixed seat</p><p>11Affiliation</p><p>12 pivot</p><p>13fixed slot</p><p>131 positioning ribs</p><p>132 drawstring hole</p><p>14Ladder hole</p><p>141Circle wall</p><p>15stop</p><p>2 brake mechanism</p><p>21Gear disk</p><p>211 sleeve</p><p>212 teeth</p><p>22 Spring</p><p>23Shrap</p><p>231Perforation</p><p>232 teeth</p><p>3winding mechanism</p><p>31First reel</p><p>311 accommodating slots</p><p>312Bump</p><p>313through hole</p><p>314 Included</p><p>315Hook</p><p>32Second reel</p><p>321Axis hole</p><p>322Cards</p><p>323 card slot</p><p>33 positioning ring</p><p>331 Positioning Block</p><p>332 positioning slot</p><p>333Perforation</p><p>334 convex ring</p><p>4Terrace</p><p>41 convex</p><p>42 cover</p><p>43 bushings</p><p>44Return spring</p><p>45Bumps</p><p>46stop block</p><p>47 Groove</p><p>471 turning groove</p><p>48Fixed rod</p><p>5Axis</p><p>6 Curtain rod seat</p><p>61Perforation</p><p>62Long slot</p><p>ADrawstring</p><p>Bladder rope</p><p>C cloth belt</p>

Figure 1 is a three-dimensional exploded view of the creation.

Figure 2 is a three-dimensional cross-sectional view of the ladder seat.

Figure 3 is a schematic cross-sectional view of the creation combination.

Figure 4 is a schematic diagram of the AA section of Figure 3 of this creation.

Figure 5 is a schematic diagram of the BB section of Figure 3 of this creation.

Figure 6 is a schematic diagram of the action of Figure 5.

Figure 7 and VIII are schematic diagrams of the CC profile action in Figure 3.

Figure 9 is a perspective view of another embodiment of the present creation.