TWI706079B - Venetian blinds and lower rails - Google Patents

Abstract

The present invention provides a lower rail and a blind with the lower rail. The lower rail includes: a long frame with a top wall and two side walls; and an accommodating space formed on the top wall and the two side walls Between; at least two rope holes, provided on the top wall of the frame, and connected to the empty space; a long counterweight installed in the accommodating space; a long sheet, embedded in The bottom surface of the frame. The pull rope of the blinds and the ends of the ladder rope/ladder belt are threaded into the housing space of the frame body and connected with the fixing member.

Description

Venetian blinds and lower rails

The present invention is related to curtains. In detail, it refers to a jalousie lower rail and a jalousie with the lower rail.

There are various types of curtains. Venetian blinds are a common type of curtain. Please refer to Figure 1. The jalousie 10 has an upper rail 12, a lower rail 14, most of the curtain blades 15 installed between the upper and lower rails, and a plurality of drawstrings 16. A plurality of ladder ropes 17 are connected between the upper and lower rails 12, 14 and the curtain blade 15; a plurality of fasteners 18 are installed at the bottom end of the lower rail 14 to fix the bottom end of the ladder rope 17 to the lower rail 14. The upper rail 12 is also equipped with a retracting adjustment mechanism 19, which can control the draw ropes 16 and ladder ropes 17 to control the raising and lowering of the curtain blades 15 and adjust the angle of the curtain blades to achieve shading and dimming purpose.

In the conventional blind structure, the bottom end of the ladder rope 17 is fixed to the lower rail 14 by a fastener 18, and the fastener 18 is fastened to the outer peripheral surface of the lower rail 14 and exposed to the lower rail, which hinders the appearance. Moreover, this connection structure has been in use for a long time, and innovation and improvement are really needed.

In addition, the conventional venetian blind lower rail 14 is in the form of a single component, for example, an article made of aluminum. Its appearance is monotonous, and in terms of material and color, it does not match the blind blade 15 and cannot be used with curtains. The blade 15 forms a sense of integrity.

The present invention aims to solve the lack of lifting, and its main purpose is to provide a lower rail of the blinds, which provides an innovative structure for the lower rail of the blinds.

Another object of the present invention is to provide a lower rail for blinds, which makes the appearance of the lower rail more exquisite.

Another object of the present invention is to provide a lower rail of the blinds, which has a sense of integration with the curtain blades of the blinds.

The lower rail of the blinds provided by the present invention includes: A long frame body has a top wall and two side walls; an accommodating space is formed between the top wall and the two side walls; at least two rope holes are provided on the top wall of the frame body and communicate with the empty space space; A long counterweight is installed in the accommodating space; A long sheet is embedded on the bottom surface of the frame.

The jalousie provided by the present invention includes: Plural curtain leaves arranged up and down; Plural drawstrings are threaded on the curtain leaves; Plural ladder ropes are respectively arranged on both sides of the curtain blades; and An above-mentioned lower rail, which is located under the curtain blades; The bottom end of each draw rope is inserted into the frame body from the rope hole of the top wall of the frame body, and is connected with the counterweight; The bottom end of each ladder rope extends into the frame body to connect the counterweight.

Thereby, the lower rail system provides a novel structure and the rope combination of the blinds. The draw ropes of the blinds and the ends of the ladder ropes/ladder belts are inserted into the housing space of the frame and connected with the fixing parts. . The connection structure between the rope (draw rope, ladder rope, ladder belt) of the blinds and the lower rail is hidden in the lower rail, making the whole of the lower rail and the blinds more beautiful.

The above-mentioned lower rail can also be provided with a plurality of side holes on the two side walls of the frame body, so that the ends of the ladder rope and the ladder belt of the blinds can penetrate into the frame body from the side holes.

Preferably, the sheet material of the lower rail is the same as the curtain blade of the blind, so that the sheet material of the lower rail is consistent with the curtain blade, so that the blind has a sense of integrity.

Please refer to Figures 2 to 4, which are the lower rail 20 of the blinds provided by the first preferred embodiment of the present invention, especially for blinds. The lower rail 20 mainly includes: a long frame body 30, An elongated counterweight 40 and an elongated sheet 50.

The frame 30 is an elongated body with a single cross-sectional shape, for example, made of aluminum extrusion, and has a top wall 31 and two side walls 32; a accommodating space 35 formed on the top wall 32 and the two Between the side walls 34. At least two rope holes 33 are provided on the top wall 32 of the frame body 30 and communicate with the empty space 35. The two rope holes 33 are arranged along the longitudinal direction of the frame body 30. The number and position of the rope holes 33 are in accordance with the pull of the blinds The number and position of the ropes are determined. When the size of the curtain is larger and a larger number of draw ropes are provided, the frame 30 is provided with the same number of rope holes 33. Each side wall 32 of the frame body 30 is provided with at least two side holes 34 connected to the accommodating space 35. As shown in FIGS. 2 to 4, the number and position of the side holes 34 of each side wall 32 correspond to the rope The number and location of holes 34. The side hole 34 of this embodiment is an elongated hole, which is suitable for blinds of a ladder belt.

The bottom edges of the two side walls 34 are each provided with an embedding groove 36, where, please refer to Figure 5, the inner wall surface of each side wall 34 is provided with two strips 361 along the longitudinal direction of the frame 30, the two strips 361 are arranged up and down to maintain a gap Each of the embedding grooves 36 is formed between the two strips 361, the embedding groove 36 has an opening facing the frame 30. Two inlays 38 are arranged in the accommodating space 35 along the longitudinal direction of the frame. Based on the cross section of the frame 30 in FIG. 5, the two inlays 38 are arranged side by side in the frame. The free ends 381 of the two embedded ribs 38 face each other and keep a distance.

The counterweight 40 is made of a material softer than ferrous metal, such as wood or plastic. In this embodiment, a wooden counterweight is selected. The two sides of the counterweight 40 are each provided with an embedded part 42 along the longitudinal direction. Each embedding portion 42 is a groove in this embodiment. The counterweight 40 is moved into the frame from one end of the frame 30, and is installed in the accommodating space 35 of the frame 30, as shown in FIG. 5, and the embedding portion 42 on the two sides of the counterweight 40 and the two embedding The free ends 381 of the ribs 38 are embedded. The present embodiment discloses that the counterweight 40 is installed in the accommodating space 35 in the frame in an embedded manner, and the counterweight 40 can also be directly placed in the accommodating space 35.

In addition, in this embodiment, the counterweight 40 is combined with the frame body 30 in an inlaid manner, and the counterweight is not easy to slip. As shown in Figure 5, the inner wall of the top wall 31 is provided with one or The two micro-protrusions 37 force the counterweight 40 to be tight between the micro-protrusions 37 and the inlay 38, and it is not easy to slide. The counterweight 40 must be pushed to make the counterweight 40 slide. The way to prevent the counterweight from slipping is not limited to that shown in this embodiment. For example, a screw is screwed from the bottom surface of the counterweight to the counterweight, and the end of the screw passes through the counterweight The top surface of the piece is pressed tightly to the top wall of the frame, and the counterweight can also be positioned.

The sheet material 50 of the present invention is a curtain blade used for blinds, and its two sides are embedded in the grooves 36 on the two sides of the frame body, thereby closing the bottom surface of the frame body 30.

In addition, the lower rail 20 further includes two end covers 55 respectively covering the two ends of the frame body 30, as shown in FIGS. 2 and 6. Please refer to FIGS. 3 and 5, the card edges 56 on the two sides of each end cover 55 contact the inner wall surfaces of the two side walls of the frame body 30.

The lower rail 20 of the present invention is used as the lower rail of the venetian blind 60, please refer to Figures 7 to 9, which shows a blind 60 composed of the lower rail 20, and the lower rail 20 is matched with a ladder In addition to the lower rail 20, the blind 60 also has: an upper rail 62, a plurality of curtain blades 64 arranged between the upper and lower rails and arranged up and down, a plurality of drawstrings 65, Plural ladder belts 66, please refer to Figure 8 and Figure 9. Each draw rope 65 is threaded through the curtain blades 64; the ladder belts 66 are respectively located on both sides of the curtain blade 64, and on every two ladders on different sides The belt 66 is tied to form a set of ladder belts, and a plurality of span ropes 67 are arranged at equal intervals from top to bottom between the two ladder belts; the curtain blades 64 are respectively placed on the span ropes 67. A retracting adjustment mechanism 69 is installed on the upper rail 62. When the user operates the retracting adjustment mechanism 69, the drawstring 65 can be retracted or released to raise and lower the lower rail 20 and the curtain blades 64 , And can drive the ladder belt 66 on both sides of the curtain blade 64 to move up and down, thereby changing the shielding angle of the span rope 67 and the curtain blade 64. The structure and operation mode of the blind 60 are not the main subject of the present invention, and will not be described in detail, and the rolling adjustment mechanism 69 of the blind is not limited to the present invention. The prior art discloses different types of rolling adjustment mechanisms. The jalousie of the present invention is characterized by the combination structure of the ladder belt/ladder rope and the pull rope and the lower rail of the blind.

Taking the jalousie 60 with two drawstrings 65 and two sets of ladder belts 66 as an example, please refer to Figures 8 and 9. The lower rail 20 is located below the curtain blades 64; the bottom ends of the two drawstrings 65 are attached from The rope hole 33 of the frame 30 penetrates into the accommodating space 35 of the frame and is fixed to the counterweight 40. In this embodiment, a staple 651 is used to fix the end of the drawstring 65 to the counterweight. The fixing method of the pull cord 65 is not limited to this embodiment. In practice, a hole may be drilled in the counterweight 40, and the pull cord 65 may be inserted into the hole and fixed. The bottom ends of the two ladder belts 66 of each set of ladder belts extend from the side holes 34 of the two side walls 32 of the frame body 30 into the frame body, and the counterweights are fixed by staples 661 or other means. The counterweight is made of wood, and the drawstring and ladder belt can be fastened to the counterweight by using needles and needles, thereby forming the blind 60.

The sheet 50 of the lower rail 20 of the present invention and the curtain blade 64 of the blind 60 of the present invention use the same blades, and their colors and materials are the same. Therefore, the sheet of the lower rail 20 can be seen from the bottom to the top ( The blade 50 is consistent with the blade 64 of the curtain, forming a sense of integrity.

Figure 10 is the second preferred embodiment of the lower rail 20' of the present invention, which also includes: a long frame body 30, a long weight member 40, a long sheet material 50 and two end covers 55 The structure of the components of this preferred embodiment is almost the same as that of the first preferred embodiment, and the same structures are represented by the same reference numerals, which will not be repeated.

The difference between this embodiment and the first preferred embodiment lies in the hole shape of the side hole. The side hole 34' of the side wall 32 of the frame 30 is a through hole for the rope to penetrate.

Please refer to Figure 11 and Figure 12, the lower rail 20' of the present invention is used for a blind 60' with a ladder rope (not a ladder belt). The blind 60' has: an upper rail 62 and a plurality of curtain blades 64 , A plurality of pull ropes 65, a plurality of ladder ropes 68, a winding adjustment mechanism 69 and the lower rail 20', the ladder rope 68 is a rope thinner than the ladder belt. The connection method of the drawstring 65 and ladder rope 68 of the curtain 60' and the lower rail 20' is the same as that of the first preferred embodiment, that is, the bottom end of each drawstring 65 is tied through the rope hole 33 of the frame 30 The bottom end of each ladder rope 68 is inserted into the frame through a side hole 34 ′ of a side wall 32 of the frame 30 and fixed to the counterweight 40.

Figure 13 is the lower rail 20" of the third preferred embodiment of the present invention. Please refer to Fig. 15. The lower rail 20' also includes: an elongated frame 30 and an elongated counterweight 40 , A long sheet material 50 and two end caps 55, the structure of the components of this preferred embodiment is the same as that of the first preferred embodiment, and the same structures are denoted by the same reference numerals, which will not be repeated.

The difference between this embodiment and the first preferred embodiment is that the two side walls 32 of the frame 30 are not provided with side holes.

Please refer to Figure 14 and Figure 15. The lower rail 20' of the present invention is used for a blind 60" with ladder ropes. The curtain 60" has: an upper rail 62, a plurality of curtain blades 64, a plurality of draw ropes 65, A plurality of ladder ropes 68, a winding adjustment mechanism 69, and the lower rail 20". The bottom end of each pull rope 65 is tied from the rope hole 33 of the frame body 30 and penetrates into the frame body to fix the counterweight 40. Each The bottom end of the ladder rope 68 passes through the gap between one side of the sheet 50 and one of the side walls 32 of the frame, and then extends into the accommodating space 35 of the frame, and is fixed to the counterweight 40 As shown in Figure 15, the bottom end of each ladder rope 68 is inserted into the groove 36 of a side wall 32 of the frame body 30 and enters the frame. In detail, the rope section 681 of the ladder rope 68 is inserted An embedding groove 36 of the frame is plugged in the gap between the edge of the sheet 50 and the two strips 361, so that the bottom end of the ladder rope 68 can pass between one side of the sheet 50 and a side wall 32 It penetrates into the frame 30, and then fixes the counterweight 40 with staples 682 or other fixing methods. In this way, the lower rail 60" and other components are assembled into the blind 60".

Fig. 16 is a cross-sectional view of the lower rail 20 of the fourth preferred embodiment of the present invention. In the figure, the lower rail of the first preferred embodiment is used to illustrate this embodiment. This embodiment further includes: a second sheet 52 , Is the same as the shape and color of the sheet 50, and also the same as the curtain leaf of the blind. The second sheet 52 is placed on the top wall 31 of the frame 30; at least two perforations 53 are provided in the The second sheet 52 respectively corresponds to the rope holes 33 for the draw rope to pass into the frame.

Thereby, the sheets (blades) 50 and 52 on the top and bottom surfaces of the lower rail 20 are matched with the curtain blades of the blinds to make the blinds more integrated. The structure of this preferred embodiment can be applied to any of the foregoing preferred embodiments.

The invention provides an innovative structure for the lower rail of the blinds, and changes the combination of the ladder rope, the ladder belt and the draw rope and the lower rail of the blinds. The ladder rope, the ladder belt and the combination of the draw rope and the lower rail are hidden in In the lower rail, therefore, there is no need to use the fastener 18 shown in Figure 1 to make the lower rail and the curtain more beautiful. In addition, the sheets 50 and 52 used in the lower rail are the same as the curtain blades of the blinds. The same color, material and surface effect make the whole curtain integral.

The above-mentioned embodiments are merely illustrative of the technical means of the present invention rather than limiting, and any equivalent modification of the present invention should be regarded as the protection scope of the present invention. The lower rail and blinds provided by the present invention are the first technologies in the technical field and have practical effects. An application is filed according to law.

20, 20’, 20”: lower rail

30: frame

31: top wall

32: side wall

33: Rope hole

34, 34’, 34”: side hole

35: accommodation space

36: Insert groove

361: Bar

38: inlay

381: free end

40: counterweight

42: Embedding part

50: sheet

52: second sheet

53: Piercing

55: end cap

56: Card Edge

60, 60’, 60”: blinds

62: upper rail

64: curtain leaf

65: Drawstring

651: Staple

66: Ladder

661: Staple

67: span rope

68: Ladder Rope

681: rope segment

682: staple

69: winding adjustment mechanism

The purpose, features and effects of the present invention can be understood from the description and drawings of the following preferred embodiments, in which: Figure 1 is a three-dimensional schematic diagram of a conventional blind. Figure 2 is a perspective view of the lower rail of the first preferred embodiment of the present invention. Figure 3 is an exploded perspective view of Figure 2. Figure 4 is a bottom exploded perspective view of Figure 2; Figure 5 is a transverse sectional view of the lower rail shown in the section line 5-5 of Figure 2. Figure 6 is a cross-sectional view taken along the line 6-6 of Figure 5. Figure 7 is installed on the lower rail of Figure 2 to form a blind. Figure 8 is a partial enlarged view of Figure 7. Figure 9 is a cross-sectional view of the line 9-9 of Figure 7. Figure 10 is a perspective view of the lower rail of the second preferred embodiment of the present invention. Figure 11 is a blind curtain installed on the lower rail of Figure 10. Figure 12 is a partial enlarged view of Figure 11. Figure 13 is a perspective view of the lower rail of the third preferred embodiment of the present invention. Figure 14 is based on the installation of the lower rail in Figure 13 to form a blind. Figure 15 is a sectional view taken along line 15-15 of Figure 14. Figure 16 is a transverse cross-sectional view of the lower rail of the fourth preferred embodiment of the present invention.

20: lower rail

30: frame

31: top wall

32: side wall

33: Rope hole

34: side hole

35: accommodation space

36: Insert groove

38: inlay

381: free end

40: counterweight

42: Embedding part

50: sheet

60: Venetian blinds

64: curtain leaf

65: Drawstring

651: Staple

66: Ladder

661: Staple

67: span rope

Claims (8)

A jalousie curtain, comprising: a plurality of curtain blades arranged up and down; a plurality of draw ropes threaded through the curtain blades; a plurality of ladder ropes respectively provided on both sides of the curtain blades; and a lower rail located on the curtain blades Below, there is; a long frame with a single cross-sectional shape and a top wall and two side walls; an accommodating space formed between the top wall and the two side walls; at least two rope holes are provided On the top wall of the frame and connected to the empty space; a long counterweight is installed in the accommodating space; the bottom end of each draw rope is threaded through the rope hole on the top wall of the frame Into the accommodating space of the frame and connect the counterweight; the bottom end of each ladder rope passes through the gap between one side of the sheet and one of the side walls of the frame, and enters the accommodating space In this case, a long sheet material is fixed to the counterweight and is arranged on the bottom surface of the frame, and two sides of the sheet material are embedded with the two side walls. A jalousie curtain comprising: a plurality of curtain blades arranged up and down; a plurality of draw ropes threaded through the curtain blades; a plurality of ladder ropes or ladder belts respectively arranged on two sides of the curtain blades; and a lower rail located in the Wait for under the curtain leaf, have; A long frame with a single cross-sectional shape and a top wall and two side walls; an accommodating space is formed between the top wall and the two side walls; at least two rope holes are provided in the frame The top wall of the frame is connected to the empty space, and at least two side holes are provided on each side of the frame to communicate with the accommodating space; a long counterweight is installed in the accommodating space; The bottom end of the rope is threaded from a rope hole of the top wall of the frame body into the accommodating space of the frame body and connected with the counterweight; the bottom end of each ladder rope or belt is tied from the frame body one One side hole of the side wall penetrates into the accommodating space of the frame body and is connected with the counterweight; a long sheet material is arranged on the bottom surface of the frame body, and two sides of the sheet material are embedded with the two side walls . The blind of claim 1 or 2, wherein: the bottom edges of the two side walls are each provided with an embedding groove; the two sides of the sheet are respectively embedded in the two embedding grooves. The blind according to claim 1 or 2, wherein: at least one elongated rib is arranged in the accommodating space of the frame along the longitudinal direction of the frame; the peripheral surface of the counterweight is along the longitudinal direction At least one embedding part is provided, and the counterweight part is embeded with the embedding rib through the embedding part. The blind according to claim 4, wherein: the frame is provided with at least two elongated inlays in the longitudinal direction, each of the two inlays has a free end, and the free ends of the two inlays are kept spaced apart and face each other; Each of the two side surfaces of the counterweight is provided with an embedding part, and the two embedding parts are embedded with the free ends of the two embedding ribs. The blinds according to claim 1 or 2, further comprising: a second sheet material placed on the top wall of the frame; two perforations are provided on the second sheet material and correspond to the two ropes respectively hole. The blind according to claim 1 or 2, wherein: the inner wall surface of each side wall of the frame body is provided with two strips for maintaining a gap along the longitudinal direction of the frame; each of the embedding grooves is formed between the two strips. The blind according to claim 1 or 2, wherein: the material of the counterweight is softer than metal.

Images