TWM609726U - Bidirectional open-close type window curtain - Google Patents

Abstract

A two-way opening and closing curtain includes a first crossbeam and a second crossbeam arranged in sequence under a certain object, and a curtain body is connected between the first crossbeam and the second crossbeam. In addition, a first lifting structure is installed in the first beam, and a second lifting structure is installed in the second beam. The first lifting structure is used to control the first cross beam to be far away or close to the fixed object, and the second lifting structure is used to control the second cross beam to be far away or close to the first cross beam. Accordingly, it is convenient for assembly and maintenance.

Description

Two-way opening and closing curtains

This creation is related to the curtain structure; in particular, it refers to a two-way opening and closing curtain that can change the light transmission (or shielding) area of the curtain.

The existing two-way opening and closing curtains (top down, bottom up, TDBU) consist of upper, middle and lower beams, and a curtain body is arranged between the middle beam and the lower beam, and both ends of the curtain body are connected to the middle beam respectively. And the lower beam connection. The aforementioned middle beam can be moved away from or close to the upper beam by two pull ropes, and the aforementioned lower beam can be moved away from or close to the middle beam by two other pull ropes that connect the middle beam. In order to achieve the purpose of being able to arbitrarily change the light transmission (or shielding) area of the two-way opening and closing curtain.

However, although the existing two-way opening and closing curtain structure makes the shading more flexible, the two sets of rope winding units used to wind the rope are installed in the upper beam, and the two sets of rope winding units are often limited to installation. Lack of space makes it difficult to assemble and easily cause mutual interference; secondly, the installation of the rope winding unit in the upper beam increases the inconvenience of maintenance. For example, Taiwan Patent Announcement M449195 "Two-way opening and closing curtain improved structure" new patented technology has hidden the above-mentioned defects.

In view of this, the purpose of this creation is to provide a two-way opening and closing curtain, which has the effect of convenient assembly or maintenance, and has the effect of smooth operation and labor saving.

In order to achieve the above purpose, this creation provides a two-way opening and closing curtain installed on a fixed object. The two-way opening and closing curtain includes a first beam, a second beam and a curtain body, wherein the first beam is located on the fixed object. Below, the second cross beam is located below the first cross beam, one end of the curtain body is connected to the first cross beam, and the other end is connected to the second cross beam; and a first lifting structure is arranged in the first cross beam, the first lifting structure It includes at least one first drawstring and a first sliding seat; wherein one end of the first drawstring is fixed to the fixing object, and the other end enters the first beam and is movably connected with the first sliding seat; A sliding seat moves in the first cross beam as the first cross beam moves away from or approaches the fixed object; and a second lifting structure is disposed in the second cross beam, and the second lifting structure includes at least a second The draw rope and a second sliding seat; wherein one end of the second draw rope is fixed to the fixing object, and the other end enters the first beam and the second beam and is movably connected with the second slide seat; The two sliding seats move in the second cross beam as the second cross beam moves away from or close to the fixed object.

The effect of this creation is that the first lifting structure and the second lifting structure are respectively installed in the first beam and the second beam that can be lifted and lowered, which has the effect of convenient assembly and maintenance, and at the same time has the advantages of labor-saving operation.

In order to explain the creation more clearly, a preferred embodiment is given in conjunction with the drawings in detail as follows. Please refer to FIG. 1 and FIG. 2, the two-way opening and closing curtain 100 of the preferred embodiment of the present creation is installed on a fixed object to cover the opening of the building (such as a window). The two-way opening and closing curtain 100 includes a first cross beam 10, a second cross beam 20, a curtain body 30, a first lifting structure 40 and a second lifting structure 50. The first cross beam 10 is located below the upper cross beam 101; the second cross beam 20 is located below the first cross beam 10; one end of the curtain body 30 is connected to the bottom edge of the first cross beam 10, and the other end is connected to the top edge of the second cross beam 20; The structure 40 is disposed in the first cross beam 10 to cooperate with the first cross beam 10 to move away from or close to the upper cross beam 101; the second lifting structure 50 is disposed in the second cross beam 20 to cooperate with the second cross beam 20 moves away from or close to the first beam 10. The aforementioned curtain body 30 has a good shading effect, and its shape can be set in different forms depending on use or design to form different curtain systems such as venetian blinds, honeycomb curtains, Roman blinds, roller blinds, etc. In this embodiment, honeycomb curtains are used as example. It is understandable that between the first cross beam 10 and the upper cross beam 101, a curtain can also be installed as required to increase the variability of the light shielding of the two-way opening and closing curtain 100. In addition, the aforementioned anchors such as window frames, beams or other structures with a stable effect, in this embodiment, the anchors are upper beams 101 fixed on the upper edge of the opening of the building, that is, the upper beams 101 belong to Part of the curtain is sold in groups.

Since the composition of the first lifting structure 40 and the second lifting structure 50 are the same, the first lifting structure 40 will be used as an example for description later. Please refer to Figures 3 to 5, the first lifting structure 40 includes a first fixed seat 41, a first pre-tensioning device 42, a first sliding seat 43, a first steering wheel 44, a first spool 45, a first The reel 46, the first connecting rope 47 and the first pulling rope 48. The first fixing seat 41 and the first pre-stressing device 42 are respectively arranged on opposite sides of the first cross beam 10, and the first sliding seat 43 is located between the first fixing seat 41 and the first pre-stressing device 42, And can move in the first cross beam 10; the first steering wheel 44 is installed on the first fixed seat 41, the first spool 45 is installed in the first sliding seat 43, and the first steering wheel 44 is connected to the first The spool 45 has a plurality of separation grooves, preferably, the first steering wheel 44 and the first spool 45 are installed in a rotatable manner; the first reel 46 is installed in a rotatable manner On one side of the first pre-tensioning device 42; and two ends of the first connecting rope 47 are respectively fixedly connected to the first sliding seat 43 and the first winding wheel 46.

The above-mentioned first pre-tensioning device 42 includes a coil spring wheel 421, a spring storage wheel 422, and a scroll spring 423, wherein the coil spring wheel 421 and the spring storage wheel 422 are arranged adjacently and rotatably in situ, and the scroll spring 423 It is wound around the coil spring wheel 421 and the spring storage wheel 422 in an S-shape, and the two ends of the scroll spring 423 are respectively fixed to the coil spring wheel 421 and the spring storage wheel 422. The scroll spring 423 follows the coil spring wheel 421 and the spring storage wheel 422. The rotation of the wheel 422 is switched to change the number of turns wound on the coil spring wheel 421 and the spring storage wheel 422. The above-mentioned first winding wheel 46 is located on one side of the winding spring wheel 421, and one end of the first winding wheel 46 is connected to a first driving gear 461 which is connected to one end of the winding spring wheel 421. The first driven gear 421a meshes with each other so that the first reel 46 and the spring reel 421 can be interlocked with each other; in addition, the first reel 46 has a conical shape with a spiral winding groove on the wheel surface. For the wheel body, the first reel 46 is upright and pivoted in the first beam 10 in a wide top and narrow bottom. As shown in FIG. 5, the cone profile of the first reel 46 is a concave curved surface, but it can also be It is in the shape of a funnel with a narrower slope. It is also noted that the coil spring wheel 421, the spring storage wheel 422, and the spiral spring 423 of the aforementioned first pre-tensioning device 42 are pre-placed together with the first reel 46 in a casing B (refer to FIG. 1). It is a modular structure and has the effect of convenient and fast installation.

The number of the first drawstring 48 in this embodiment is two. One end of the first drawstring 48 penetrates into the upper beam 101 and is fixed to an adjusting piece 49a, so that one end of the first drawstring 48 is firmly fixed to the upper part. For the cross beam 101, the other end of the first pull rope 48 passes through the wire seat 49b fixed on the top surface of the first cross beam 10 and then enters the first cross beam 10, and is connected to the first sliding seat 43 after passing through the first steering wheel 44 It should be noted that one end of the aforementioned first draw rope 48 can be directly connected to the first sliding seat 43, or before being consolidated, after winding the first spool 45 and the first steering wheel 44, depending on the use or design requirements. It is then connected to the first sliding seat 43 or the first fixing seat 41, and the number of turns of the first rope 48 between the first spool 45 and the first steering wheel 44 and the left-right movement stroke and the first sliding seat 43 A cross beam 10 is related to the multiple of the up-and-down movement stroke. For example, when the first pull rope 48 passes through the first steering wheel 44, the first spool 45, and the first steering wheel 44 in sequence, then it is secured to the first sliding seat 43. When the time, it means that the first pull rope 48 has made a second turn. At this time, when the first sliding seat 43 moves by one time, the first cross beam 10 is moved by three times. The aforementioned first pull rope 48 is selectively straddled in different separation grooves when passing through the first spool 45 and the first steering wheel 44 to ensure that the twisted pull rope segments will not be twisted with each other.

Please cooperate with FIG. 6, which shows the state of the components of the first lifting structure 40 when the first cross beam 10 is close to the upper cross beam 101. At this time, the scroll spring 423 of the first pre-tensioning device 42 is wrapped around the spring storage wheel 422. The number of turns is more than the number of turns wound on the winding spring wheel 421, which presents accumulated tension. This situation drives the first reel 46 to keep rotating counterclockwise, and the turning of the first reel 46 then passes through the first reel 46. The rope 47 is connected to generate a pulling force on the first sliding seat 43 to further ensure that the stop position of the first cross beam 10 is reliable. At the same time, the first reel 46 winds up most of the first connecting rope 47, that is, the first connecting rope 47 is divided into an exposed section 47a and a spiral section 47b, wherein one end of the exposed section 47a is connected to the first sliding seat 43. The other end of the exposed section 47a is connected to the circling section 47b. The circling section 47b is sequentially wound in the wire groove from the upper part of the first reel 46 to the lower part. The diameter is relatively narrow, so the rope exit position of the exposed section 47 a of the first connecting rope 47 shown in FIG. 6 is biased toward the center of the first reel 46.

When the first cross beam 10 is pulled downwards so that the first cross beam 10 is relatively far away from the upper cross beam 101, since the length of the first rope 48 is fixed, the first rope between the first cross beam 10 and the upper cross beam 101 When the number of exposed rope segments 48 increases, the first sliding seat 43 will be pulled by the two first pull ropes 48 to move toward the first fixed seat 41 as shown in FIG. 7, and the moving first sliding seat 43 will pull the first fixed seat 41. A connecting rope 47 causes the spiral section 47b wound on the first reel 46 to gradually release from the lower part to the upper part of the first reel 46 to shorten the rope length. Relatively, the exposed section of the first connecting rope 47 The rope length 47a gradually increases, and the rope exit position of the exposed section 47a of the first connecting rope 47 deviates from the center of the first reel 46, thereby driving the first reel 46 to rotate clockwise. This situation prompts the spring reel The rotation of 421 and spring storage wheel 422 is switched, so that most of the scroll spring 423 is changed to be wound on the winding spring wheel 421. The specific embodiment in this embodiment is that the scroll spring 423 is wound on the winding spring wheel. The number of turns of 421 is more than the number of turns that are wound in the spring storage wheel 422, so that when the first beam 10 is manipulated to move up again, it can be assisted by the automatic rewinding force of the scroll spring 423 so that we can easily take the first The cross beam 10 moves against the upper cross beam 101. Please refer to FIG. 8 again, the first sliding seat 43 of this embodiment is made of lightweight plastic, and is integrally formed with elastic side wings 43a on the side surface, and the elastic side wings 43a are formed by ribs bulging outward. The inner side wall of the first cross beam 10 has a guide groove 10a arranged along the longitudinal axis, and the first sliding seat 43 with its elastic side wings 43a is located in the guide groove 10a, is restricted and can slide stably.

As shown in FIG. 2, the second lifting structure 50 is arranged in the second cross beam 20, and its constituent members and the positional relationship between the members are the same as those of the first lifting structure 40, including the same first fixing seat 41 as described above. Two fixed seats 51, the same second pretension device 52 of the first pretension device 42, the same second slide seat 53 of the first slide seat 43, and the same second steering wheel of the first steering wheel 44 (not shown in the figure) Show), the same second spool (not shown) of the above-mentioned first spool 45, the same second spool 56 of the above-mentioned first spool 46, and the same second connecting rope 57 of the above-mentioned first connecting rope 47 , The second drawstring 58 is the same as the above-mentioned first drawstring 48.

One end of the second pull rope 58 of the second lifting structure 50 is also fixed to the adjusting piece 49a on the upper cross beam 101, and the other end passes through the wire holder 49b on the first cross beam 10 and directly passes through the first cross beam 10. After passing through the curtain body 30 and finally passing through the wire seat 49b fixed on the top surface of the second cross beam 20, the second sliding seat 53 is then connected to the second diverting wheel and the second spool shaft. The action principle and effect produced by the lifting structure 50 are the same as those of the first lifting structure 40, which will not be repeated here. It is worth mentioning that the second pull rope 58 passes straight through the first cross beam 10 in an unturned manner, and does not have any influence or linkage relationship with any member of the first lifting structure 40. Therefore, when we push and pull When the first cross beam 10 is used, there will be no friction problem caused by the contact between the second pull rope 58 and any member of the first lifting structure 40, so that the first cross beam 10 can be moved up and down in a labor-saving manner.

The two-way opening and closing curtain 100 of the present embodiment has the effect of adjusting the light transmission (or shielding) area of the upper or lower part, and the first lifting structure 40 and the second lifting structure 50 are respectively installed on the first cross beam 10 and the controllable lifting The second cross beam 20 has the effect of convenient assembly or maintenance; secondly, the second pull rope 58 of the second lifting structure 50 is designed to pass through the first cross beam 10 in a straight direction, so that the first cross beam 10 is not in the process of pushing and pulling. Excessive friction will be generated, so that the first cross beam 10 can be controlled for lifting and lowering with less effort.

Please cooperate with FIG. 2 again, the first fixing seat 41 of the first lifting structure 40 is installed on the outside of the first pull rope 48 on the left, in order to prevent the first sliding seat 43 from improperly touching the first pull when moving to the left. The rope 48, the total length of the first rope 48 and the number of turns around the first steering wheel 44 and the first spool 45 are designed after actual use requirements, so that the first sliding seat 43 moves to the left in the limit position It is bounded by the right side (inside) of the first drawstring 48 on the left side. Of course, the first fixing seat 41 can also be installed on the inner side of the first pull cord 48 on the left side as shown in FIG. 9, that is, located between the two first pull cords 48 but leaning to the first pull cord 48 on the left side. That is, it can be ensured that the moving first sliding seat 43 will not touch the first pull cord 48 on the left side. With the foregoing configuration, in addition to facilitating assembly and maintenance of the first lifting structure 40 and the second lifting structure 50 installed on the first cross beam 10 and the second cross beam 20, the effect of labor-saving operation of the first cross beam 10 can be achieved.

The above descriptions are only the preferred and feasible embodiments of this creation. Any equivalent changes made by applying this creation specification and the scope of patent application should be included in the patent scope of this creation.

[This creation] 100: Two-way opening and closing curtains 101: upper beam 10: The first beam 20: second beam 30: Curtain body 40: The first lifting structure 41: The first fixed seat 42: The first pre-force device 421: Coil Spring Wheel 421a: first driven gear 422: spring storage wheel 423: Scroll Spring 43: The first sliding seat 44: The first steering wheel 45: The first spool 46: The first reel 461: first driving gear 47: The first connecting rope 47a: exposed segment 47b: Circling section 48: The first drawstring 49a: adjustment piece 49b: Wire holder 50: The second lifting structure 51: second fixed seat 52: The second pre-force device 53: second sliding seat 56: The second reel 57: second connecting rope 58: second drawstring B: Case

Figure 1 is a three-dimensional view of a two-way opening and closing curtain created in a preferred embodiment; Figure 2 is a front view of Figure 1; Figures 3 and 4 are three-dimensional views of the first lifting structure of the two-way opening and closing curtain of the above-mentioned preferred embodiment; Figure 5 is a front view of Figure 3; Figure 6 is a top view of Figure 5; Figure 7 is similar to Figure 6, revealing that the first sliding seat of the first lifting structure moves to the left; Figure 8 is a perspective view of some components of the two-way opening and closing curtain of the above preferred embodiment; Figure 9 is a perspective view of a two-way opening and closing curtain created by another preferred embodiment.

100: Two-way opening and closing curtains

101: upper beam

10: The first beam

20: second beam

30: Curtain body

40: The first lifting structure

41: The first fixed seat

43: The first sliding seat

49a: adjustment piece

49b: Wire holder

50: The second lifting structure

51: second fixed seat

53: second sliding seat

B: Case

Claims (11)

A two-way opening and closing curtain is installed on a fixed object. The two-way opening and closing curtain includes a first beam, a second beam and a curtain body, wherein the first beam is located below the fixed object, and the second The crossbeam is located below the first crossbeam, one end of the curtain body is connected to the first crossbeam, and the other end is connected to the second crossbeam; it is characterized in that it comprises: A first lifting structure is arranged in the first beam, and the first lifting structure includes at least a first pull rope and a first sliding seat; wherein one end of the first pull rope is fixed to the fixing object, and the other end enters The first cross beam is movably connected with the first sliding seat; the first sliding seat moves in the first cross beam as the first cross beam moves away from or approaches the fixed object; A second lifting structure is arranged in the second beam, and the second lifting structure includes at least a second pull rope and a second sliding seat; wherein one end of the second pull rope is fixed to the fixing object, and the other end passes through After passing the first beam and entering the second beam, it is movably connected with the second sliding seat; the second sliding seat is within the second beam as the second beam moves away from or approaches the fixed object mobile. The two-way opening and closing curtain according to claim 1, wherein the second drawstring passes straight through the first beam in an unturned manner. The two-way opening and closing curtain according to claim 1, wherein at least one of the first sliding seat and the second sliding seat has an elastic side wing, and an inner side wall of at least one of the first beam and the second beam There is a guide groove, and the elastic side wing is located in the guide groove. The two-way opening and closing curtain of claim 1, wherein the first lifting structure includes a first connecting rope, a first winding wheel and a first pre-tensioning device; both ends of the first connecting rope are respectively fixed Connecting the first reel and the first sliding seat, the first reel can rotatably wind up or release the first connecting rope, the first pre-tensioning device is arranged in conjunction with the first reel ; Wherein when the first beam moves away from the fixed object, the first pull rope pulls the first sliding seat to make the first winding whorls and release the first connecting rope. The two-way opening and closing curtain according to claim 4, wherein one end of the first reel is connected with a first driving gear; the first pre-tensioning device includes a spring wheel, a spring storage wheel and a scroll spring , Wherein one end of the coil spring wheel is connected to a first driven gear, the first driven gear meshes with the first driving gear, two ends of the scroll spring are respectively connected to the coil spring wheel and the spring storage wheel, and the The spiral spring changes the number of turns wound on the coil spring wheel and the spring storage wheel as the rotation of the coil spring wheel and the spring storage wheel is switched. According to claim 4, the two-way opening and closing curtain, wherein the first reel is in a conical shape, and is vertically pivoted on the first beam in a manner of upper width and lower width. The two-way opening and closing curtain of claim 1, wherein the first lifting structure includes a first steering wheel and a first spool, the first steering wheel is fixed in the first beam, and the first spool It is arranged on the first sliding seat, and the first pull rope passes through the first steering wheel and the first spool. The two-way opening and closing curtain of claim 1, wherein the second lifting structure includes a second connecting rope, a second winding wheel and a second pre-tensioning device; both ends of the second connecting rope are respectively fixed Connecting the second reel and the second sliding seat, the second reel can rotatably wind up or release the second connecting rope, and the second pre-tension device is arranged in conjunction with the second reel ; Wherein when the second crossbeam moves away from the first crossbeam, the second pull rope pulls the second sliding seat to make the second winding whorl and release the second connecting rope. The two-way opening and closing curtain of claim 8, wherein one end of the second reel is connected to a second driving gear; the second pre-tensioning device includes a spring wheel, a spring storage wheel and a scroll spring , Wherein one end of the coil spring wheel is connected to a second driven gear, the second driven gear meshes with the second driving gear, two ends of the scroll spring are respectively connected to the coil spring wheel and the spring storage wheel, and the The spiral spring changes the number of turns wound on the coil spring wheel and the spring storage wheel as the rotation of the coil spring wheel and the spring storage wheel is switched. The two-way opening and closing curtain according to claim 8, wherein the second reel is in a conical shape, and is vertically pivoted on the second beam in a wide top and a narrow bottom. The two-way opening and closing curtain of claim 1, wherein the second lifting structure includes a second steering wheel and a second spool, the second steering wheel is fixed in the second beam, and the second spool Set on the second sliding seat, the second pull rope passes through the second steering wheel and the second spool.

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