TWI787058B - curtain - Google Patents

Abstract

The curtain of the present invention includes an upper beam and a shielding structure. The upper beam has a bottom wall, a shading part and two vertical walls. The two vertical walls are respectively located on the front and rear sides of the bottom wall. The shading part is connected between the bottom wall and the vertical wall and protrudes downward; the shielding structure is arranged on the upper beam There is a ladder rope and a plurality of blades below the ladder rope. The ladder rope has two warps and multiple latitudes. The parallels are connected between the two warps and arranged at equal intervals along the extension direction of the two warps. The leaves One-to-one is arranged on the equal latitude, so that the blades can be driven by the ladder rope and adjusted to an inclined state to provide a shading effect. When the blades are in an inclined state, a part of the blade closest to the upper beam will be It is covered by the shading part of the upper beam, so that the problem of light leakage can be solved.

Description

curtain

The invention relates to curtains, in particular to a curtain that can solve the problem of light leakage.

For general blinds, after all the blades are unfolded, they can be further driven by the ladder rope to tilt relative to the upper beam, so that all the blades can provide the effect of shielding light. However, after all the blades are tilted relative to the upper beam, the bottom edge of the upper beam and There will be gaps between the uppermost blades and light leakage will occur, which will cause glare and discomfort to indoor personnel.

In order to solve the aforementioned light leakage problem, the curtain disclosed in US 2020/0018115 has a shading strip protruding from the bottom of the upper beam. When all the blades are driven by the ladder rope and tilt relative to the upper beam, a part of the uppermost blade will be shaded The strip is covered, so that there will be no gap between the uppermost blade and the bottom edge of the upper beam, thus solving the problem of light leakage.

The main purpose of the present invention is to provide a curtain, which can eliminate the gap to solve the light leakage problem.

In order to achieve the above main purpose, the curtain of the present invention includes an upper beam and a shielding structure. The upper beam has a bottom wall and two vertical walls, and the vertical walls are respectively located on the front and rear sides of the bottom wall. The upper beam further has a light-shielding portion connected to the bottom wall Between one of the vertical walls and protruding downward; the shielding structure is arranged under the upper beam and has a ladder rope and a plurality of blades. The ladder rope has two warps and a plurality of wefts, and the wefts Connected between the warps and arranged at equal intervals along the extending direction of the warps, the blades are arranged on the wefts in a one-to-one manner, so that the blades can be driven by the ladder rope It is adjusted to an inclined state, and when the blades are in the inclined state, a part of one of the uppermost blades will be covered by the light-shielding portion of the upper beam.

From the above, it can be seen that the present invention utilizes the design of the light-shielding portion to effectively eliminate the gap between the bottom edge of the upper beam and the blade of the uppermost layer, so as to solve the problem of light leakage.

Preferably, a straight section extends straight downward from the bottom side of the vertical wall, a concave arc section extends outward from one of the long sides of the bottom wall, and the straight section and the concave arc section pass through a convex arc section connected together. Thereby, the straight section, the concave arc section and the convex arc section constitute a light shielding portion.

Preferably, the shading portion extends continuously from one end of the upper beam to the other end of the upper beam along the length direction of the upper beam.

Preferably, a light-shielding portion protrudes downward from the junction of each of the vertical walls and the bottom wall, that is, the upper beam has two light-shielding portions facing front and rear.

Preferably, an alcove located below the bottom wall is formed between the concave arc segments of the shading parts, and the shielding structure further has a lifting rope connected to the blades, and the blades can be driven by the lifting rope And it is adjusted to the retracted state, when the blades are in the retracted state, one of the blades on the uppermost layer is located in the alcove.

The detailed structure, features, assembly or usage of the curtains provided by the present invention will be described in the detailed description of the following embodiments. However, in the present invention Those with ordinary knowledge in the field should be able to understand that the detailed description and the specific embodiments listed for implementing the present invention are only used to illustrate the present invention, and are not intended to limit the scope of the patent application of the present invention.

10: Curtains

20: upper beam

21: bottom wall

22: Standing wall

23: shading part

24: straight section

25: Concave arc section

26: Convex arc

27: alcove

30: Shielding structure

31: ladder rope

32: Warp

33: Weft

34: blade

34a: blade

S1: Tilt state

S2: Collapsed state

Fig. 1 is a partial perspective view of the curtain of the present invention, wherein the blades are in an inclined state.

Fig. 2 is a perspective view of the upper beam provided by the curtain of the present invention.

Figure 3 is a partial side view of the curtain of the present invention with the vanes in a tilted state.

Fig. 4 is a partial side view of the curtain of the present invention, wherein the vanes are in a retracted state.

The applicant hereby explains that in the entire specification, including the embodiments described below and the claims of the scope of the patent application, the nouns related to direction are based on the directions in the drawings. Secondly, in the embodiments and drawings to be described below, the same component numbers represent the same or similar components or their structural features.

Please refer to FIG. 1 , the curtain 10 of the present invention includes an upper beam 20 and a shielding structure 30 .

As shown in FIG. 2 , the upper beam 20 has a bottom wall 21 and two upright walls 22 , and the two upright walls 22 are respectively located on the front and rear sides of the bottom wall 21 . In addition, the upper beam 20 further has two light-shielding parts 23 (in fact, at least one is enough), and the two light-shielding parts 23 are connected between the bottom wall 21 and the vertical wall 22 and from the junction of the two vertical walls 22 and the bottom wall 21 It protrudes downwards in one piece, and the two cover The optical part 23 extends continuously from one end of the upper beam 20 to the other end of the upper beam 20 along the length direction of the upper beam 20 . Furthermore, as shown in FIG. 3 , the two shading parts 23 respectively have a straight section 24 , a concave arc section 25 and a convex arc section 26 , and one end of the two straight sections 24 is integrally connected to the two vertical walls 22 On the bottom side, one end of the two concave arc sections 25 integrally connects the front and rear sides of the bottom wall 21, and each convex arc section 26 is integrally connected between the straight extension section 24 and the convex arc section 26, whereby the two An alcove 27 (as shown in FIG. 4 ) adjacent to the bottom wall 21 is formed between the light shielding portions 23 .

The shielding structure 30 is disposed under the upper beam 20 . As shown in Figures 1 and 3, the shielding structure 30 has at least one ladder rope 31 (the number can be adjusted according to the size of the curtain 10), and the ladder rope 31 has two warp threads 32 and a plurality of weft threads 33 (the number is not limited, as long as equal to the number of blades 34), the top ends of the two warps 32 are passed through the upper beam 20 and connected with a dimmer (this is a known technology, not shown in the figure) located in the upper beam 20, these The weft threads 33 are connected between the two warp threads 32 and arranged at equal intervals along the extending direction of the two warp threads 32 . The shielding structure 30 further has a plurality of blades 34 (the number is not limited, as long as it is equal to the number of wefts 33 ), and the blades 34 are arranged on the wefts 33 in a one-to-one manner. Thereby, the ladder rope 31 can be driven by the aforementioned dimmer to adjust the turning angle of the blades 34, so that the blades 34 are adjusted to the inclined state S1 (as shown in FIG. 3 ) for providing the shading effect, when When the blades 34 were in the inclined state S1 shown in Figure 3, a part of the uppermost blade 34a would be covered by the two light-shielding parts 23 of the upper beam 20, so that the gap between the upper beam 20 and the blades 34a could be eliminated. gap to solve the light leakage problem.

On the other hand, the shielding structure 30 has at least one lifting rope 35 (the number can be adjusted according to the size of the curtain 10) connecting the blades 34. One end of the lifting rope 35 is installed in the upper beam 20 and is connected to a The rope reel in the upper beam 20 (this is known technology, among the figure not shown), so that the lifting rope 35 can be driven by the aforementioned rope reel to adjust the blades 34 to the retracted state S2 as shown in Figure 4, when the blades 34 are in the retracted state as shown in Figure 4 At S2, the uppermost blade 34a is located in the alcove 27 and abuts against the concave arc sections 25 of the two light-shielding parts 23 with its front and rear sides, so as to prevent the blade 34a from being directly pressed against the upper beam 20 during the folding process. The bottom wall 21 is damaged.

20: upper beam

21: bottom wall

22: Standing wall

23: shading part

24: straight section

25: Concave arc section

26: Convex arc

31: ladder rope

32: Warp

33: Weft

34a: The uppermost leaf

S1: Tilt state

Claims (4)

A curtain, comprising: an upper beam with a bottom wall and two upright walls, the upright walls are respectively located on the front and rear sides of the bottom wall, the upper beam further has a light-shielding part, and the light-shielding part is connected to the bottom wall and the One of the vertical walls protrudes downwards; and a shelter structure is arranged below the upper beam and has a ladder rope and a plurality of blades, the ladder rope has two warp threads and a plurality of weft threads, these The wefts are connected between the warps and arranged at equal intervals along the extending direction of the warps, and the blades are arranged on the wefts in a one-to-one manner, so that the blades can be driven by the ladder rope And adjusted to an inclined state, when the blades are in the inclined state, a part of the blade on the uppermost layer will be covered by the light-shielding portion of the upper beam; wherein, the light-shielding portion has a straight section, a concave arc section and A convex arc section, one end of the straight extension section is connected to the vertical wall, one end of the concave arc section is connected to the bottom wall, and the convex arc section is connected between the straight extension section and the concave arc section. The curtain according to claim 1, wherein the shading part extends continuously from one end of the upper beam to the other end of the upper beam along the length direction of the upper beam. The curtain according to claim 2, wherein the upper beam has two shading parts, and each of the shading parts is connected between one of the vertical walls and the bottom wall and protrudes downward. The curtain as described in claim 3, wherein an alcove located below the bottom wall is formed between the shading parts, and the shielding structure further has a lifting rope connected to the blades, and the blades can be moved by the lifting rope. Driven to adjust to a retracted state, when the blades are in the retracted state, one of the uppermost blades is located in the alcove.

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