TWI772122B - roller shutter - Google Patents

Abstract

A roller blind, comprising an upper rail, a roller shutter device at one end of the upper rail, and a roller blind device on the upper rail A limit device at the other end of the rail, two fixing brackets for the roller shutter device to be axially connected to the limit device and used for fixing on both sides of the upper side of the window, a lower rail arranged at intervals below the upper rail, and a curtain, the two ends of the curtain are respectively fixed on the upper rail and the lower rail and wound on the surface of the upper rail; wherein one end of the limiting device protrudes from the outer end of the upper rail, as the right end of the The fixing bracket is combined and fixed, and it is also used to adjust the lower limit position of the lower rail and the upper limit position of the lower rail at the outer end of the fixing bracket at the right end, which is convenient for consumers without disassembling the overall structure of the roller blind. Turn by hand or adjust with an adjustment tool.

Description

roller shutter

The present invention relates to a curtain, especially a roller shutter.

Please refer to Fig. 1 and Fig. 2. In places such as doors and windows of homes and offices, roller blinds 1 used for shielding sunlight and decorative functions have become quite popular. However, in the existing roller blind 1 , the user pulls the lower rail 12 to fold or unfold the slats 11 of the roller blind 1 . Since there is no suitable upper limit device and lower limit device in the roller blind 1 , when the position A1 of the lower rail 12 after the shutter 11 is retracted is too high, the lower rail 12 of the screen cloth 11 will be retracted along the upper rail 13 . The generated force turns over to the other side of the upper rail 13, so that the highest point A2 of the folded lower rail 12 becomes lower, and the user has to manually put the lower rail 12 back to its original position. Therefore, the force of pulling down the curtain 11 is too large, which may cause the top 111 of the curtain 11 to fall off from the connection point B wound on the upper rail 13 , causing the curtain 11 to fall.

Therefore, the industry has developed a roller blind with an adjustable upper limit device, or a roller blind with only a lower limit device, while the roller blind with an upper limit device is not equipped with a lower limit device, which is easy to let the curtain pull down when the shutter is pulled down. , it may cause the curtain to fall off the upper rail; on the contrary, the roller blind with the lower limit device does not have the upper limit device. When the curtain is folded, the bottom of the curtain will turn over to the upper rail due to the force generated by the folding. On the other side, the user has to manually put the lower rail back to its original position.

In addition, please refer to Fig. 3, the industry has further developed a roller blind and its buffer with upper and lower limits set in Patent Publication No. M605068 of the Republic of China. into and sealed in an upper rail 22, if the consumer buys back the roller blind 2 and installs it, he finds that the size of the roller blind 2 is If the size is not suitable, consumers cannot adjust it by themselves, and must send it back to the seller for processing or re-purchase the roller blind 2 with a suitable size. The above-mentioned deficiencies in the prior art are the deficiencies that those skilled in the art are eager to improve.

The main purpose of the present invention is to solve the problems derived from the existing roller blind.

In order to achieve the above object, the present invention provides a roller blind, comprising an upper rail; a roller blind device, the roller blind device is located at one end of the upper rail; a limiting device, the limiting device is located at another side of the upper rail one end; two fixing brackets, the fixing brackets are respectively used for the shaft connection of the roller shutter device and the limiting device and used for fixing on both sides above the window; a lower rail, the lower rail is arranged below the upper rail at intervals; And a curtain, the two ends of the curtain are respectively fixed on the upper rail and the lower rail and wound on the surface of the upper rail; wherein one end of the limiting device protrudes from the outer end of the upper rail, as the right end The fixed bracket is combined and fixed, and the lower limit position of the lower rail and the upper limit of the lower rail can be adjusted at the outer end of the fixed bracket at the right end.

Further, the upper rail is provided with a limiting convex body, and an inserting groove is arranged above the limiting convex body, and the inserting groove is used for a starting end of the curtain piece to be embedded, so that the curtain piece is driven by the upper rail to move up and down; Wherein, the surface of the lower rail is provided with a groove, and the groove is used for a terminal end of the curtain to be inserted and fixed; wherein, one end of the roller shutter device is provided with a square fixing column; wherein, the limiting device includes a A limit shaft, a shaft shell, an upper limit shaft, a stroke adjustment member, a limit rotation body, an upper limit stop body, a lower limit stop body, and a limit elastic member, wherein the lower limit shaft has a position At one end of the lower limit shaft and protruding from the right end of the first protruding shaft of the fixed bracket, the first protruding shaft is a square shaft and is provided with a hollow through hole communicating with the interior of the lower limit shaft. The lower limit shaft There is a top cover connected to the first protruding shaft, and a plurality of hook fasteners which are distributed and protruded on the other end of the lower limit shaft, and the hook fasteners are respectively provided with a hook body; the shaft shell is sleeved on the lower limit The outer surface of the positioning shaft is combined with the upper rail, and the shaft housing is driven by the upper rail to rotate on the outer surface of the lower limiting shaft. inner shaft, Wherein the chamber is for the lower limit shaft to be inserted, the top cover is correspondingly arranged in the concave edge, and the first convex shaft drives the lower limit shaft to rotate in the chamber when the first convex shaft rotates, and the outer side of the inner shaft rotates. The end is for the hooks to abut against to restrict the lower limit shaft from coming out, and the axle housing has at least a pair of first limit grooves corresponding to the limit protrusion of the upper rail; the upper limit shaft is arranged at the lower limit In the inner hollow of the positioning shaft, the upper positioning shaft has a second protruding shaft and a shaft, the second protruding shaft is located at one end of the upper positioning shaft, and the second protruding shaft is a circular protruding shaft to be inserted into the upper positioning shaft In the through hole of the first protruding shaft, the second protruding shaft has a hexagonal hole. One end is provided with a ring groove, and an inner chamber is formed between the inside of the other end of the upper limit shaft and the shaft, and the outer surface of the shaft has a first convex block and a second convex block, the One end of the first convex block and the second convex block is connected to the ring groove of the upper limit shaft and does not exceed the outer diameter of the ring groove; one end of the stroke adjusting member is inserted into the inner chamber of the upper limit shaft and For the shaft to rotate, the stroke adjustment member comprises an arc-shaped lever, a ring convex body connected to the arc-shaped lever, and a No. a threaded portion and a first fixing portion connected to the first threaded portion, the arc-shaped lever has a semi-circular arc groove, and the semi-circular arc groove is provided for the shaft without the first convex block and the first The outer surfaces of the two convex blocks are inserted and rotated, and both sides of the arc-shaped lever form a first side edge and a second side edge, and the outer surface of the first fixing portion has a clamping body; the limiting swivel screw The travel adjusting piece is connected to the upper rail, and the limiting swivel is driven by the upper rail to rotate and move along the travel adjusting piece, wherein the limiting swivel has a second threaded portion and at least a pair of upper rails. The second limiting groove of the limiting convex body of the rail, the second threaded portion engages the first threaded portion of the stroke adjustment member, and both sides of the limiting swivel have adjacent to the second limiting groove and are A first resisting part and a second resisting part are opposite; the upper limit blocking body is connected to the other end of the stroke adjusting piece and rotates and displaces synchronously with the stroke adjusting piece; the upper limit blocking body has a second fixing part and a a third blocking part, the second fixed part is combined with the first fixed part of the stroke adjusting member, the third blocking part is correspondingly engaged with the first blocking part of the limiting rotating body; the lower limiting blocking body is sleeved on the Outside the stroke adjustment The surface is used to provide rotation of the stroke adjustment piece. The lower limit blocking body has a cylinder body, a convex wall portion and a fourth blocking portion. The cylinder body is sleeved on the outer surface of the stroke adjustment piece, and the cylinder body has a container. The accommodating portion includes a first space from one end of the cylinder body to the other end, a second space connected with the first space, a third space connected with the second space, and a space in the first space. The third threaded portion on the inner surface of the three spaces, the first space is embedded with the annular groove of the upper limit shaft, the inner diameter of the first space is larger than the inner diameter of the second space, and the first space and the The second space is for inserting the arc-shaped lever of the stroke adjusting member, a first abutting edge is formed between the first space and the second space, and the inner diameter of the second space is larger than the inner diameter of the third space Large, a second abutting edge is formed between the second space and the third space, the second abutting edge is used for abutting the ring convex body of the stroke adjustment member, and the third threaded portion engages the stroke adjustment member. the first threaded part, and the outer surface of one end of the cylinder body has a plurality of grooves, the convex wall part is protruded on the cylinder body and adjacent to the grooves, and the convex wall part has corresponding grooves A plurality of insert grooves, the insert grooves are used for the hook bodies of the hooks to be inserted from the grooves and hooked with the hook bodies, so that the bulge part is against the outer end of the inner shaft , let the lower limit stop body and the lower limit shaft be fixed in combination, the fourth stop part is protruding toward the outer surface of the cylinder, and one end of the fourth stop part is connected to the convex wall part and the fourth stop part The other end of the cylinder protrudes from the other end of the cylinder, so that the fourth resisting portion is correspondingly engaged with the second resisting portion of the limiting rotating body; the limiting elastic member is located in the first space of the lower limiting blocking body Inside, one end of the limit elastic piece abuts on the first abutting edge, the other end of the limit elastic piece abuts on the other end of the upper limit shaft, through one end and the other end of the limit elastic piece A first penetration space and a second penetration space are formed. The first penetration space is used for the arc lever to penetrate and rotate counterclockwise or clockwise, and the second penetration space is used for the shaft The first convex block and the second convex block penetrate and rotate counterclockwise or clockwise.

Further, the fixing brackets respectively comprise a fixing body and a stand body connected below the fixing bodies, each of the fixing bodies respectively has a vertical piece, and each of the vertical pieces is in the transverse part and the longitudinal part. There are a plurality of fixing holes respectively, and each of the vertical pieces faces downwards of the fixing holes in the longitudinal part respectively. The inner side is bent, the stand bodies are respectively provided with a connecting part connecting the bottom ends of the longitudinal parts of each of the vertical parts, and a guiding part extending from the lower part of the connecting parts, and two grooves are respectively provided in each of the vertical parts. Both sides of the guide portion are used for temporary placement when the roller shutter device is installed, and a square through hole is provided between the grooves of each guide portion for the fixed column of the roller shutter device and the The first protruding shaft of the lower limiting shaft passes through the setting position, and a guiding groove bent toward the outside is provided under each through hole of each guiding portion, and one of the guiding grooves is used for the fixing column to be guided in. to one of the through holes for positioning, and the other of the guide grooves for the first protruding shaft to be guided to the other of the through holes for positioning.

Further, each of the fixing brackets further includes an outer envelope, and the outer envelopes are respectively provided with an accommodating groove and two locking blocks respectively located on the upper and two sides of the accommodating grooves, and the accommodating grooves are respectively For the vertical frame bodies to be embedded, the connecting parts are respectively fixed by the locking blocks.

Furthermore, the number of the hooks is three; wherein, the grooves of the cylinder body and the insertion grooves of the protruding wall are correspondingly arranged to match the hooks.

Furthermore, the first resisting portion, the second resisting portion and the third resisting portion are convex blocks, and the fourth resisting portion is a protruding strip.

Through the aforementioned implementation of the present invention, compared with the prior art, the roller shutter of the present invention has the following characteristics: the roller blind of the present invention passes through the limiting device, which is convenient for users to manually turn one end of the limiting device without disassembling the entire set of the roller blinds. Limiting and controlling the lower rail will not continue to be lowered and being able to be lower limited, or adjusting the limiting device with an adjustment tool to limit and control the lower rail not continuing to be pulled up but being able to be upper positioned.

(existing)

1: Roller blinds

11: Curtain

111: Top

12: Lower track

13: On the track

A1: Location

A2: The highest point

B: Connection point

2: Roller blinds

21: Buffer

22: On the rails

(this invention)

3: Roller blinds

4: On the track

411: Limit convex body

412: Groove

42: Down the track

421: Channel

5: Roller shutter device

51: Fixed column

6: Limiting device

61: Lower limit axis

610: one end

6100: hollow inside

611: Top cover

612: The first convex shaft

6121: Through hole

613: The other end

614: Hook fasteners

6141: hook body

62: Axle housing

620: concave edge

621: The first limit slot

622: Inner shaft

6220: Compartment

6221: one end

63: Upper limit axis

630: one end

6301: The other end

631: Second camshaft

6311: Hexagon hole

632: Shaft

6321: The first convex block

6322: Second convex block

633: Internal Compartment

634: Ring Groove

64: Stroke adjustment piece

641: Arc lever

6411: Semi-circular groove

6412: First side

6413: Second side

642: Ring convex body

643: The first thread part

644: First fixed part

6441: Card body

65: Limit swivel

651: Second thread part

652: The second limit slot

653: The first resist

654: Second Block

66: Upper limit block

661: Second fixed part

662: The third resist

67: Lower limit stop

671: Cylinder

6711: one end

6712: The other end

6713: Groove

672: Takagaki

6721: Groove

673: Fourth Block

674: Reservoir

675: First Space

6751: First abutment edge

676: Second space

6761: Second abutment edge

677: Third space

678: Third thread part

68: Limit elastic parts

681: one end

682: The other end

683: The first wearing space

684: Second wear space

7: Fixed bracket

71: Fixed body

711: Vertical Pieces

712, 713: Fixing holes

72: Stand body

721: Connector

722: Guidance Department

723: Groove

724: Through hole

725: Guide slot

73: Outer Envelope

731: accommodating slot

732: Locking block

8: curtain

81: Start

82: Terminal

9: Adjustment Tools

C: The stop point of the lower limit

D: the stop point of the upper limit

Figure 1: It is a schematic diagram of the slats of the existing roller blind after being folded.

Figure 2: It is a schematic diagram of the existing roller shutter after the curtain sheet is unfolded.

Figure 3: It is a schematic diagram of the configuration of a roller blind with upper and lower limit positions and its buffers in Patent Publication No. M605068 of the Republic of China.

Fig. 4 is a perspective exploded view of the roller blind of the present invention.

Fig. 5 is an exploded perspective view of the limiting device of the roller blind of the present invention.

Fig. 6 is an exploded perspective view of the limiting device of the roller blind in Fig. 5 from another angle.

Fig. 7 is a combined cross-sectional view of the limiting device of the slat shown in Fig. 5.

Fig. 8 is a side view of the second resisting portion and the fourth resisting portion engaging with each other in Fig. 7 .

Figure 9: It is a side view of the assembly of the stroke adjusting member, the limit elastic member and the lower limit stop body in Figure 5.

Fig. 10 is a three-dimensional schematic diagram of the pull-down curtain sheet of the roller blind of the present invention.

Figure 11: It is a combined cross-sectional view of the limiting device of the roller blind in Figure 10.

Figure 12: It is a perspective view of the curtain in Figure 10 after unfolding.

Fig. 13 is a side view of the first blocking portion and the third blocking portion in Fig. 12 engaged with each other.

Fig. 14 is a three-dimensional schematic diagram of changing the lower limit position of the lower rail for the roller blind of the present invention.

Fig. 15 is a schematic diagram of the operation of the limiting device for changing the lower limit of the lower rail in Fig. 14 .

Fig. 16 is a schematic diagram showing the counterclockwise rotation of the stroke adjusting member, the limit elastic member and the lower limit stop body in Fig. 15 .

Fig. 17 is a three-dimensional schematic diagram of the roller blind of the present invention changing the upper limit of the lower rail.

Fig. 18 is a schematic diagram of the operation of the limiting device for changing the upper limit of the lower rail in Fig. 17 .

Fig. 19 is a schematic diagram of the clockwise rotation of the stroke adjusting member, the limit elastic member and the lower limit stop body in Fig. 18 .

The detailed description and technical content of the present invention are described as follows with reference to the drawings:

Please refer to FIG. 4 to FIG. 7 , the present invention provides a roller blind. The roller blind 3 includes an upper rail 4 , a roller blind device 5 at one end of the upper rail 4 , and a roller blind device 5 at one end of the upper rail 4 . The other end of the limiting device 6 , two fixed brackets 7 for the roller shutter device 5 and the limiting device 6 to be axially connected, a lower rail 42 arranged at intervals below the upper rail 4 , and a shutter 8 . The upper rail 4 is provided with a limiting convex body 411 , and an inserting groove 412 is arranged above the limiting convex body 411 , and the inserting groove 412 is used for a starting end 81 of the curtain sheet 8 to be embedded and rolled on the surface of the upper rail 4 . Winding, so that the curtain 8 is driven by the upper rail 4 to move up and down. A groove 421 is provided on the surface of the lower rail 42 , and the groove 421 is used for a terminal 82 of the curtain 8 to be inserted and fixed.

The roller blind device 5 is arranged at one end of the upper rail 4, and one end of the roller blind device 5 is provided with a square fixed column 51, the fixed column 51 is pivotally connected to the fixed bracket 7 at the left end, the roller blind device 5 is a conventional component and will not be repeated here.

Referring back to FIGS. 4 to 7, the limiting device 6 is disposed at the other end of the upper rail 4, and the limiting device 6 includes a lower limiting shaft 61, a shaft housing 62, an upper limiting shaft 63, a The stroke adjustment member 64 , a limit rotation body 65 , an upper limit stop body 66 , a lower limit stop body 67 , and a limit elastic member 68 . The lower limit shaft 61 includes a first protruding shaft 612 of the fixing bracket 7 at one end 610 of the lower limit shaft 61 and protruding from the right end. The first protruding shaft 612 is a square shaft, so that the first The cam shaft 612 does not move. In one embodiment, the first protruding shaft 612 is provided with a through hole 6121 communicating with the inner hollow 6100 of the lower limiting shaft 61 . The lower limit shaft 61 has a top cover 611 connected to the first protruding shaft 612, and a plurality of hooks 614 protruding from the other end 613 of the lower limit shaft 61. The hooks 614 are preferably There are three hooks 6141 respectively.

The shaft housing 62 is sleeved on the outer surface of the lower limiting shaft 61 and is combined with the upper rail 4 , and the shaft housing 62 is driven by the upper rail 4 to rotate on the outer surface of the lower limiting shaft 61 . One end of the shaft shell 62 has a concave edge 620 , and the other end extends an inner shaft 622 with a accommodating chamber 6220 , wherein the accommodating chamber 6220 is for the lower limit shaft 61 to be inserted, and the top cover 611 is correspondingly provided with the concave edge 620, and make the first protruding shaft 612 rotate and drive the The lower limit shaft 61 rotates in the accommodating chamber 6220 , the outer end 6221 of the inner shaft 622 is for the hooks 614 to abut against to restrict the lower limit shaft 61 from coming out, and the shaft shell 62 has at least a first limit. The position slot 621 corresponds to the position limiting protrusion 411 of the upper rail 4 , so that the upper rail 4 can drive the axle housing 62 to cooperate with the limiting protrusion 411 of the upper rail 4 to rotate on the outer surface of the lower limiting shaft 61 .

The upper limit shaft 63 is disposed in the inner hollow 6100 of the lower limit shaft 61 . The upper limit shaft 63 has a second protruding shaft 631 and a shaft 632 . The second protruding shaft 631 is located on the upper limit shaft 63 . One end 630, and the second protruding shaft 631 is a circular protruding shaft to be inserted into the through hole 6121 of the first protruding shaft 612, the second protruding shaft 631 has a hexagonal hole 6311, the hexagonal hole 6311 is used for an adjustment A tool 9 such as a hexagonal wrench is inserted to rotate the upper limit shaft 63 to rotate in the inner hollow 6100 of the lower limit shaft 61 (as shown in FIG. 18 ). The shaft rod 632 protrudes from the inside of the upper limit shaft 63 toward the outside from the other end 6301 of the upper limit shaft 63 . The other end 6301 of the upper limit shaft 63 is provided with a ring groove 634 , and the upper limit shaft 63 An inner chamber 633 is formed between the inside of the other end 6301 and the shaft 632, and the outer surface of the shaft 632 has a first convex block 6321 and a second convex block 6322. The first convex block 6321 and the One end of the second convex block 6322 is connected to the annular groove 634 of the upper limit shaft 63 and does not exceed the outer diameter of the annular groove 634 .

One end of the stroke adjustment member 64 is inserted into the inner chamber 633 of the upper limit shaft 63 for the shaft 632 to rotate. The stroke adjustment member 64 includes an arc-shaped lever 641 , a ring protrusion 642 , and a first thread part 643 and a first fixing part 644, the arc-shaped lever 641 is semi-circular arc and has a semi-circular arc groove 6411, the semi-circular arc groove 6411 for the shaft 632 without the first convex block 6321 and The outer surface of the second convex block 6322 is inserted and rotated, and two sides of the arc-shaped lever 641 form a first side 6412 and a second side 6413 . The annular protrusion 642 is connected to the arc-shaped lever 641 . The first threaded portion 643 is connected to the annular protrusion 642 and protrudes toward the opposite direction relative to the arc-shaped lever 641 . The first fixing portion 644 is connected to the first threaded portion 643 , and an outer surface of the first fixing portion 644 has a clamping body 6441 .

The limiting swivel 65 is screwed to the stroke adjusting member 64 and combined with the upper rail 4 , and the limiting swivel 65 is driven by the upper rail 4 to rotate and move along the stroke adjusting member 64 . The limiting swivel 65 has a second threaded portion 651 and at least one second limiting groove 652 . The second threaded portion 651 engages with the first threaded portion 643 of the stroke adjusting member 64 , and the second limiting groove 652 corresponds to the limiting protrusion 411 of the upper rail 4 , so that the upper rail 4 can drive the limiting rotating body 65 to cooperate with the limiting protrusion 411 of the upper rail 4 to rotate and move along the first threaded portion 643 . Two sides of the limiting swivel 65 have a first resisting portion 653 and a second resisting portion 654 adjacent to and opposite to the second limiting groove 652 .

Referring back to FIG. 7 and FIG. 13 , the upper limit blocking body 66 is connected to the other end of the stroke adjusting member 64 and rotates and displaces synchronously with the stroke adjusting member 64 . The upper limit blocking body 66 has a second fixing portion 661 and a third blocking portion 662 . The second fixing portion 661 is combined with the first fixing portion 644 of the stroke adjusting member 64 . The third blocking portion 662 corresponds to the first blocking portion 653 of the limiting rotating body 65 .

Referring back to FIG. 7 and FIG. 8 , the lower limit blocking body 67 is sleeved on the outer surface of the stroke adjustment member 64 to provide the stroke adjustment member 64 to rotate. The lower limit blocking body 67 has a cylindrical body 671 , a convex wall portion 672 and a fourth blocking portion 673 . The cylindrical body 671 is sleeved on the outer surface of the stroke adjusting member 64 . The cylindrical body 671 has an accommodating portion 674 , and the accommodating portion 674 includes a first space 675 from one end 6711 to the other end 6712 of the cylindrical body 671 . A second space 676 connected to the first space 675 , a third space 677 connected to the second space 676 , and a third threaded portion 678 on the inner surface of the third space 677 . The first space 675 is engaged with the annular groove 634 of the upper limit shaft 63 , the inner diameter of the first space 675 is larger than the inner diameter of the second space 676 , and the first space 675 and the second space 676 A first abutting edge 6751 is formed between the first space 675 and the second space 676 for inserting the arc-shaped lever 641 of the stroke adjusting member 64, and the inner diameter of the second space 676 is larger than that of the third space The inner diameter of 677 is large, and a second abutting edge 6761 is formed between the second space 676 and the third space 677 . The third threaded portion 678 engages the first threaded portion 643 of the stroke adjusting member 64 . And the cylinder 671 The outer surface of one end 6711 has a plurality of grooves 6713 , the convex wall portion 672 is located in the cylindrical body 671 and protrudes adjacent to the grooves 6713 , and the convex wall portion 672 has a plurality of grooves 6713 corresponding to the grooves 6713 Embedding grooves 6721 for the hooks 614 to be inserted from the grooves 6713 and hooked with the hooks 6141, so that the bulge 672 abuts the outer end 6221 of the inner shaft 622 , the lower limit blocking body 67 is fixed in combination with the lower limit shaft 61 , and the grooves 6713 of the cylindrical body 671 and the embedding grooves 6721 of the bulge portion 672 cooperate with the hooks 614 to be correspondingly set as three. The fourth blocking portion 673 protrudes toward the outer surface of the cylindrical body 671 , one end of the fourth blocking portion 673 is connected to the protruding wall portion 672 , and the other end of the fourth blocking portion 673 protrudes out of the cylindrical body 671 . At the other end 6712 , the fourth resisting portion 673 is correspondingly engaged with the second resisting portion 654 of the limiting rotating body 65 . In one embodiment, the first resisting portion 653 , the second resisting portion 654 and the third resisting portion 662 are protruding blocks, and the fourth resisting portion 673 is a protruding strip.

Referring back to Fig. 7 and Fig. 9 and in conjunction with Fig. 16 and Fig. 19, the limiting elastic member 68 is located in the first space 675 of the lower limiting blocking body 67, and one end 681 of the limiting elastic member 68 Abutting on the first abutting edge 6751 , the other end 682 of the limiting elastic piece 68 abuts on the other end 6301 of the upper limit shaft 63 , and the other end 682 of the limiting elastic piece 68 A first penetration space 683 and a second penetration space 684 are formed. The first penetration space 683 is for the arc lever 641 to penetrate and rotate counterclockwise or clockwise, and the second penetration space 684 is for The first convex block 6321 and the second convex block 6322 of the shaft rod 632 penetrate and rotate counterclockwise or clockwise.

Referring back to FIG. 4 , the fixing brackets 7 are correspondingly used for fixing on both sides above the window. The fixing brackets 7 respectively include a fixing body 71 installed on the upper side of the window and a stand body 72 connected below the fixing bodies 71 . Wherein, each of the fixing bodies 71 has a vertical piece 711 respectively, and each of the vertical pieces 711 has a plurality of fixing holes 712 and 713 in the transverse part and the longitudinal part respectively. Each of the vertical pieces 711 is bent inwardly under the fixing holes 713 in the longitudinal portion, respectively. The stand bodies 72 are respectively provided with a connecting portion 721 connecting the bottom ends of the longitudinal portions of each of the vertical members 711 , and a connecting portion 721 from below the connecting portions 721 . Extended guide 722. Two grooves 723 are respectively disposed on both sides of each of the guide portions 722 for temporarily placing the roller blind device 5 during installation. A square through hole 724 is defined between the grooves 723 of each guide portion 722 for the fixing column 51 of the roller shutter device 5 and the first protruding shaft 612 of the lower limit shaft 61 to pass through and set bit. A guide groove 725 bent toward the outside is provided below each of the through holes 724 of each of the guide portions 722 , and one of the guide grooves 725 is used for the fixing post 51 to be guided into one of the through holes 724 for positioning. The other guide groove 725 is for guiding the first protruding shaft 612 to the other through hole 724 for positioning.

On top of that, the fixing brackets 7 further include an outer envelope 73 , and the outer envelopes 73 are respectively provided with an accommodating slot 731 and two locking blocks 732 respectively located on the upper and two sides of the accommodating slots 731 , The accommodating grooves 731 are respectively inserted into the stand bodies 72 , and the connecting portions 721 are respectively fixed by the locking blocks 732 .

Please refer to FIG. 10 to FIG. 13, after the builder installs the roller shutter 3, the upper rail 4 rotates and descends the lower rail 42, the upper rail 4 can drive the first limit position of the axle housing 62 The slot 621 and the second limiting slot 652 of the limiting rotating body 65 rotate along the limiting convex body 411 , and the limiting rotating body 65 rotates and moves from the stroke adjusting member 64 toward the upper limiting blocking body 66 . When the limiting rotating body 65 pushes against the upper limiting blocking body 66, the first resisting portion 653 of the limiting rotating body 65 is engaged with the third resisting portion 662 of the upper limiting blocking body 66, so that the The limit rotating body 65 is blocked by the upper limit blocking body 66 and will not continue to rotate and move.

Please refer to Fig. 14 to Fig. 16 in conjunction with Fig. 8. After the roller blind 3 is installed, the consumer finds that the lower limit of the lower rail 42 of the roller blind 3 is not aligned with the home window. When the lower rail 42 is in the lower limit position, manually pull the lower rail 42 to the stop point C of the lower limit position, just remove the fixing bracket 7 at the right end so that the first protruding shaft 612 and the other through hole 724 Separate and tilt the other end of the upper rail 4 on which the limiting device 6 is installed downward, then the axle housing 62 and the limiting swivel 65 are stuck in the upper rail 4 and will not rotate. When the hand rotates the first convex shaft 612 counterclockwise, the second convex block 6322 of the shaft rod 632 is rotated and pushes the one end 681 of the limiting elastic member 68, and at the same time pushes the first convex lever 641 of the arc lever 641. The side edge 6412 drives the arc lever 641 to rotate, so that the upper limit shaft 63 , the stroke adjustment member 64 , The upper limit stopper 66 and the lower limit stopper 67 will rotate counterclockwise as the lower limit shaft 61 rotates, so that the limit rotation body 65 moves linearly in the direction of the lower limit stopper 67 until the following The second resisting portion 654 of the limiting swivel 65 engages with the fourth resisting portion 673 of the lower limit blocking body 67 to stop, and then reaches the position of the stop point C where the lower limit of the lower rail 42 can be adjusted, so that the The subsequent rotation of the upper rail 4 is the adjusted lower limit position of the lower rail 42 .

Please refer to Figures 17 to 19 in conjunction with Figure 13. After the roller blind 3 is installed, the consumer finds that the upper limit of the lower rail 42 of the roller blind 3 is also not aligned with the home window. When raising the upper limit of the lower rail 42, firstly lower the lower rail 42 to the stop point D of the upper limit by hand, without removing the upper rail 4, and the axle housing 62 and the limiting swivel 65 are stuck on the upper limit. The upper rail 4 will not rotate, and the adjusting tool 9 is inserted into the hexagonal hole 6311 of the second convex shaft 631 to drive the upper limit shaft 63 to rotate clockwise, then the first convex block 6321 of the shaft 632 rotates and Push the other end 682 of the limiting elastic member 68 and push the second side 6413 of the arc lever 641 and drive the arc lever 641 to rotate, so that the first threaded portion 643 rotates clockwise and moves toward The second space 676 moves to move the arc-shaped lever 641 toward the inner chamber 633 of the upper limit shaft 63 , and at the same time, the upper limit stopper 66 rotates clockwise along with the first threaded portion 643 . Move to the stop point D where the third resisting portion 662 and the first resisting portion 653 of the limiting swivel 65 are engaged, and then reach the stop point D position where the upper limit of the lower rail 42 can be adjusted, so that the upper rail 4 can be rotated subsequently This is the upper limit position after the adjustment of the lower rail 42 ; thus, in this case, by disposing the limiting device 6 at the other end of the upper rail 4 , it is convenient for consumers to use their own hands without disassembling the overall structure of the roller blind 3 Turn or adjust with the adjustment tool 9 .

However, the foregoing are only preferred embodiments of the present invention, and the purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, but not to limit the scope of the present invention. Therefore, all equivalent changes or modifications of the shapes, structures and features described in the scope of the application of the present invention shall be included in the scope of the patent application of the present invention.

3: Roller blinds

4: On the track

411: Limit convex body

412: Groove

42: Down the track

421: Channel

5: Roller shutter device

51: Fixed column

6: Limiting device

61: Lower limit axis

612: The first convex shaft

7: Fixed bracket

71: Fixed body

711: Vertical Pieces

712, 713: Fixing holes

72: Stand body

721: Connector

722: Guidance Department

723: Groove

724: Through hole

725: Guide slot

73: Outer Envelope

731: accommodating slot

732: Locking block

8: curtain

81: Start

82: Terminal

Claims (6)

A rolling shutter includes an upper rail; a rolling shutter device, which is located at one end of the upper rail; a limiting device, which is located at the other end of the upper rail; two fixing brackets, the Some fixing brackets are respectively used for the roller shutter device to be axially connected with the limiting device and used to be fixed on both sides above the window; a lower rail, the lower rail is arranged at intervals below the upper rail; and a curtain sheet, the curtain sheet The two ends are respectively fixed on the upper rail and the lower rail and are wound on the surface of the upper rail; wherein one end of the limiting device protrudes from the outer end of the upper rail to be fixed in combination with the fixing bracket on the right end, Also, the lower limit position of the lower rail and the upper limit position of the lower rail can be adjusted at the outer end of the fixing bracket at the right end. The roller blind as claimed in claim 1, wherein the upper rail is provided with a limiting protrusion, and an inserting groove is arranged above the limiting protrusion. The sheet is moved up and down by the upper rail; wherein, the surface of the lower rail is provided with a groove, and the groove is used for a terminal end of the curtain to be inserted and fixed; wherein, one end of the roller shutter device is provided with a square fixed column ; Wherein, the limit device includes a lower limit shaft, a shaft shell, an upper limit shaft, a stroke adjustment member, a limit rotation body, an upper limit stop body, a lower limit stop body, and a limit elastic member , wherein the lower limit shaft has a first convex shaft at one end of the lower limit shaft and protrudes from the right end of the fixed bracket, the first convex shaft is a square shaft and is provided with an inner hollow with the lower limit shaft Connected through holes, the lower limit shaft has a top cover connected to the first protruding shaft, and a plurality of hooks that are distributed and protruded on the other end of the lower limit shaft, and the hooks are respectively provided with a hook body ; The shaft shell is sleeved on the outer surface of the lower limit shaft and combined with the upper rail, and the shaft shell is driven by the upper rail to rotate on the outer surface of the lower limit shaft. One end of the shaft shell has a concave edge and the other One end extends an inner shaft with an accommodating chamber, wherein the accommodating chamber is for the lower limit shaft to be inserted, the top cover is correspondingly arranged in the concave edge, and the first convex shaft drives the lower limit shaft when rotating Rotating in the container, the outer end of the inner shaft is abutted by the hooks to restrict the lower limit shaft from coming out, and the shaft shell has at least a pair of first limits corresponding to the limit convex body of the upper rail. Position slot; the upper limit shaft is arranged in the inner hollow of the lower limit shaft, the upper limit shaft has a second convex shaft and a shaft, the second convex shaft is located at one end of the upper limit shaft, and the first position The two protruding shafts are circular protruding shafts to be inserted into the through hole of the first protruding shaft. The second protruding shaft has a hexagonal hole. The other end of the shaft, the other end of the upper limit shaft is provided with a ring groove, and an inner chamber is formed between the inside of the other end of the upper limit shaft and the shaft, and the outer surface of the shaft has a first a convex block and a second convex block, one end of the first convex block and the second convex block is connected to the ring groove of the upper limit shaft and does not exceed the outer diameter of the ring groove; one end of the stroke adjusting member Inserted into the inner chamber of the upper limit shaft and used for the shaft to rotate, the stroke adjustment member comprises an arc-shaped lever, a ring protrusion connected to the arc-shaped lever, a ring protrusion connected to the ring protrusion and facing the opposite A first threaded portion protruding from the opposite direction of the arc-shaped lever, and a first fixing portion connected to the first threaded portion, the arc-shaped lever has a semi-circular arc groove, and the semi-circular arc groove is used for the shaft rod The outer surface without the first convex block and the second convex block is inserted and rotated, and the two sides of the arc-shaped lever form a first side edge and a second side edge, and the outer surface of the first fixing part is There is a clamping body; the limit swivel is screwed with the travel adjustment piece and combined with the upper rail, and the limit swivel is driven by the upper rail to rotate and move along the stroke adjustment piece, wherein the limit swivel has A second threaded portion and at least a pair of second limiting grooves corresponding to the limiting convex body of the upper rail, the second threaded portion engages the first threaded portion of the stroke adjusting member, and two of the limiting swivel The side has a first blocking part and a second blocking part which are adjacent to the second limiting groove and are opposite to each other; the upper limit blocking body is connected to the other end of the stroke adjusting piece and rotates and displaces synchronously with the stroke adjusting piece. The blocking body has a a second fixing part and a third resisting part, the second fixing part is combined with the first fixing part of the stroke adjusting member, the third resisting part is correspondingly engaged with the first resisting part of the limiting swivel; the lower limit The stop body is sleeved on the outer surface of the stroke adjustment member to provide rotation of the stroke adjustment member. The lower limit stop body has a cylindrical body, a convex part and a fourth blocking part, and the cylinder body is sleeved on the stroke adjustment part. On the outer surface of the adjustment piece, the cylinder has an accommodating portion, and the accommodating portion includes a first space from one end to the other end of the cylinder, a second space connected with the first space, and a second space connected with the second space The third space, and a third threaded portion on the inner surface of the third space, the first space is embedded in the ring groove of the upper limit shaft, and the inner diameter of the first space is larger than that of the second space. The inner diameter is large, and the first space and the second space are used for the arc-shaped lever of the stroke adjustment member to be inserted, a first abutting edge is formed between the first space and the second space, and the second space The inner diameter is larger than the inner diameter of the third space, a second abutting edge is formed between the second space and the third space, and the second abutting edge is used for the abutment of the ring protrusion of the stroke adjusting member, The third threaded portion engages with the first threaded portion of the stroke adjusting member, and an outer surface of one end of the barrel has a plurality of grooves, and the protruding portion is protruded from the barrel and adjacent to the grooves , the bulge portion has a plurality of insert grooves corresponding to the grooves, and the insert grooves are used for the hook bodies of the hooks to be inserted from the grooves and hooked with the hook bodies, so that the The protruding wall part presses against the outer end of the inner shaft, so that the lower limit stop body is combined with the lower limit shaft to be fixed, the fourth stop part is protruded toward the outer surface of the cylinder body, and one end of the fourth stop part The other end of the connecting bulge portion and the fourth resisting portion protrudes from the other end of the cylinder body, so that the fourth resisting portion is correspondingly engaged with the second resisting portion of the limiting swivel; In the first space of the lower limit blocking body, one end of the limit elastic member abuts on the first abutting edge, and the other end of the limit elastic member abuts on the other end of the upper limit shaft, A first penetration space and a second penetration space are formed through one end and the other end of the limiting elastic piece. The first penetration space is used for the arc lever to penetrate and rotate counterclockwise or clockwise. The second penetration space allows the first convex block and the second convex block of the shaft rod to penetrate and rotate counterclockwise or clockwise. The roller blind according to claim 2, wherein the fixing brackets respectively comprise a fixing body and a vertical frame body connected below the fixing bodies, each fixing body has a vertical piece, and each vertical The horizontal part and the vertical part respectively have a plurality of fixing holes, each of the vertical parts is bent inwardly under the fixing holes of the vertical part, and the vertical parts are respectively provided with a connection connecting each of the vertical parts A connecting part at the bottom end of the longitudinal part of the vertical part, and a guiding part extending from the lower part of these connecting parts, two grooves are respectively provided on both sides of each guiding part, so that the roller blind device can be temporarily installed when it is installed. A square through hole is arranged between the grooves of each of the guide parts, for the fixed column of the roller shutter device and the first convex shaft of the lower limit shaft to pass through and set in position, each of the There is a guide groove bent toward the outside under each of the through holes of the guide part, one of the guide grooves is used for the fixing post to be introduced into one of the through holes for positioning, and the other guide groove is used for the first guide groove. A protruding shaft is introduced into the other through hole for positioning. The roller blind as claimed in claim 3, wherein the fixing brackets further comprise an outer envelope respectively, and the outer envelopes are respectively provided with an accommodating slot and two cards respectively located on both sides above the accommodating slots. A fixed block, the accommodating grooves are respectively inserted into the stand bodies, and the connecting portions are respectively fixed by the locking blocks. The roller blind as claimed in claim 2, wherein the number of the hooks is three; wherein the grooves of the cylinder body and the insert grooves of the bulge are correspondingly arranged to match the hooks three. The roller blind of claim 2, wherein the first resisting portion, the second resisting portion, and the third resisting portion are convex blocks, and the fourth resisting portion is a protruding strip.

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