JP3222690U - Cordless curtain opening / closing interlocking structure - Google Patents

Abstract

A cordless curtain opening / closing interlocking structure that can be unfolded and wound is provided. A shell includes a shell, a counter-direction folding portion, a positive-direction folding portion, and a spiral spring unit. The shell includes a first cord hole and a second cord hole, and the counter-direction folding portion. 41 is provided in the shell, the forward folding portion 47 is provided in the shell, the spiral spring unit 5 is provided in the shell, and one set of the first spring set of the spiral spring unit 5 is directly or indirectly. The first cord 60 and the second cord 61 are connected to the first ends of the first cord 60 and the second cord 61 so that the first cord 60 and the second cord 61 extend in the same direction. Folds via the forward direction folding part 47, then descends by passing through the first cord hole 40 and is connected to the slat unit, and the second end of the second cord 30 passes through the reverse direction folding part 41. And then turn down and pass through the second cord hole 30 To articulate the slats unit to. [Selection] Figure 4

Description

  The present invention relates to a curtain winding structure, and more particularly to a cordless curtain winding structure.

  Curtains are used in modern living rooms mainly to protect light and protect privacy, or to decorate and decorate living rooms, and thus represent the sense of living rooms. Modern curtains are equipped with a cord on the structure to make it easier to deploy and wind up the slat, and the slat is raised and lowered by pulling the cord. However, the exposed portion of the cord easily entangles the playing infant. Curtains are especially useful in countries that place emphasis on human rights, especially the many `` cordless '' curtains that have already been developed (cordless means that cords are not drawn directly by human hands, but slat units are The main structure is different, but the deployment and winding state of the slat unit is based on simple parts relations, and a set of mainspring springs (spiral springs) is mainly used as a cord. When one end of the cord is connected to the slat unit of the curtain, the weight and elasticity of the slat unit of the curtain form an equilibrium, and when the slat unit is pulled down or rolled up, The balance is broken by the power of. However, the above description using the single cord as an example actually has a plurality of spiral springs, each of which is directly or indirectly connected to a plurality of cords, and the plurality of cords are slat units. It is connected to. Because the source of elasticity is in different springs, the factors of elasticity are different, or the force that is finally transmitted to the slat unit from the factor of the cord folding is not equal, so the slat unit tilts or A situation occurs where the unfolding and winding does not go smoothly.

  In view of the problems of the prior art, the inventor of the present invention, as a motivation for research and development, approaches the force of the cord transmitted to the slat unit evenly, the slat unit tilts, or its deployment and winding cannot be performed smoothly, etc. I thought we needed something that could reduce the situation. The present invention relates to an opening / closing interlocking structure of a cordless curtain, and provides a slat unit that can mainly be deployed and wound.

  The present invention includes a shell, a reverse direction folding portion, a forward direction folding portion, and a spiral spring unit, wherein the shell is provided with a first cord hole and a second cord hole, and the reverse direction folding portion is disposed in the shell. The forward folding portion is provided in the shell, the spiral spring unit is provided in the shell, and the spiral spring unit is directly or indirectly connected to a first spring set. The first cord and the second cord extend in the same direction by being connected to the first ends of the one cord and the second cord. The second end of the first cord folds via the forward direction folding portion, and then descends through the first cord hole to be connected to the slat unit, and the second end of the second cord The end turns back through the counter-direction turn-back portion, and then descends through the second cord hole to connect to the slat unit. Since the elastic cords to be pulled of the first cord and the second cord are the same spring, “the source of elasticity is the same”, and the second ends of the first cord and the second cord are both in the opposite direction folded portion. Of which the second end of the first cord is folded through the forward-direction folding portion and then descends through the first cord hole to be connected to the slat unit. Then, the second end of the second cord is turned back through the counter-direction turn-back portion, and then lowered by passing through the second cord hole to be connected to the slat unit.

  Although there is a slight difference in these distances, the two directing processes are almost the same, and therefore, “the source of elasticity is the same” and “both are the same directing”, and the anti-turn-back portion and the forward-turning portion are the same. The route of the folding part is almost the same, so that the pulling force of the first cord and the second cord received by the slat unit approaches equally. By bringing the amount of force transmitted to the slat unit close to equal, the situation where the slat unit 1 is inclined or its unfolding and winding cannot be prevented smoothly.

It is a three-dimensional figure of the installation position in the case of operating with a human hand of 2nd Example of this invention. It is a three-dimensional assembly drawing of the second embodiment of the present invention. It is an exploded view of the slat unit angle adjustment structure of the second embodiment of the present invention. It is the three-dimensional figure showing the state which extracted the 1st cord and the 2nd cord of the 2nd example of the present invention from the shell. It is a bird's-eye view showing the state where the 1st cord and the 2nd cord of the 2nd example of the present invention were extracted from the shell. It is a figure of the installation position of the spiral spring unit of 2nd Example of this invention. It is the figure which extracted and represented the components and cord hole of 1st Example of this invention from the inside of a shell. It is a partial three-dimensional enlarged view of the first embodiment of the present invention.

  The contents, features, and embodiments of the present invention will be described below with reference to the drawings, and contribute to further understanding of the present invention by judges.

  Referring to FIG. 1, the present invention relates to a cordless curtain opening / closing interlocking structure, and is to provide a slat unit 1 that can mainly be deployed and wound.

  The slat unit 1 can be applied to the connection and use of the angle adjuster 7 and the angular shaft 8 that rotates the angle adjuster 7 with reference to FIG.

  FIG. 1 is a diagram showing a state in which the balance is broken by the force of a human hand when the thread unit 1 is wound up.

  7 and 8, the first embodiment of the present invention will be described with reference to the shell 2 (FIG. 7 shows the internal structure, so the shell is omitted, and the shell is shown in FIGS. 1 and 3), and in the opposite direction. The shell 2 is provided with side plates 21 and 22 that include the folded portion 41, the forward-direction folded portion 47, and the spiral spring unit 5, and both ends of the shell 2 are closed. Two cord holes 30 are provided (the first embodiment will be described by extracting the first cord hole 40 and the second cord hole 30 for the sake of clarity), and the opposite direction folding portion 41 is provided in the shell 2. The forward folding portion 47 is provided in the shell 2, the spiral spring unit 5 is provided in the shell 2, and the spiral spring unit 5 has a set of first spring sets 5 </ b> A directly. Or indirectly, the first lifting cord 60 and the second lifting cord When connected to the respective first end of de 61, wherein the first lift cord 60 second lift cord 61 is extended in the same direction. The second end of the first lifting / lowering cord 60 is folded via the forward-direction folding portion 47 and then lowered by passing through the first cord hole 40 to be connected to the slat unit 1. , The second end of the second lifting / lowering cord 61 is folded back via the opposite direction folding portion 41 and then lowered by passing through the second cord hole 30 to be connected to the slat unit 1. To do.

  Since the first spring set 5A has the same elastic spring source pulled by the first lifting / lowering cord 60 and the second lifting / lowering cord 61, “the same source of elasticity”, and the first lifting / lowering cord 60 and the second lifting / lowering cord Both of the second ends of 61 are led in the direction of the opposite direction folding portion 41, and the second end of the first lifting / lowering cord 60 is folded via the forward direction folding portion 47, After passing through the first cord hole 40 and descending and connecting to the slat unit 1, the second end of the second lifting / lowering cord 61 is folded back via the counter-direction folding portion 41, and then the second cord hole As it passes through 30, it descends and is connected to the slat unit 1. Although there is a slight difference in these distances, the two directing processes are almost the same, and therefore, “the source of elasticity is the same” and “both are in the same directing direction”, the opposite direction folding part 41 and the positive direction The route of the folding part 47 is substantially the same, and therefore the pulling force of the first lifting cord 60 and the second lifting cord 61 received by the slat unit 1 approaches equally. By making the amount of force transmitted to the slat unit 1 close to be equal, the situation in which the slat unit 1 is inclined or deployment and winding are not performed smoothly is reduced.

  The anti-direction folding portion 41 is a guide pin and can be further reduced by making it a guide roller, and the forward direction folding portion 47 is also a guide pin and can be made to be a friction by making it a guide roller. Further reduction can be achieved. The opposite direction folding part 41 and the forward direction folding part 47 are respectively provided inside the central case 48, and the central case 48 has a rod 49 between the opposite direction folding part 41 and the forward direction folding part 47. The first lifting / lowering cord 60 and the second lifting / lowering cord 61 are respectively wound around the rod 49 first, and further wound around the opposite direction folding portion 41 and the forward direction folding portion 47, respectively. However, when the first lifting / lowering cord 60 and the second lifting / lowering cord 61 are wound, correction or correction is performed in advance so that the first lifting cord 60 and the second lifting / lowering cord 61 are substantially the same before being wound around the opposite direction folding portion 41 and the forward direction folding portion 47. Acquire the winding state.

  1, 3, 4, and 5, a second embodiment of the present invention includes a code branching device 4, the code branching device 4 includes a case 42, and the components of the code branching device 4 are described above. It can be accommodated in the case 42 and assembled and installed in the shell 2 by being fixed or fitted in the shell 2. In addition, the counter direction folding portion 41 is provided inside the case 42 and is on the side close to the spiral spring unit 5, and the forward direction changing portion 47 is provided inside the case 42 and is on the side far from the spiral spring unit 5. It is in. The second embodiment of the present invention further includes a far end cord portion 3, which may include a case 32 for assembling in the shell 2. The far-end cord portion 3 is provided with an inlet guide roller 31, and the inlet guide roller 31 can pass the second lifting / lowering cord 61 from the side, and passes smoothly when the second lifting / lowering cord 61 contacts. You can help as you can. The first cord hole 40 is provided at the bottom of the cord branching device 4 and the second cord hole 30 is provided at the bottom of the far end cord portion 3 to stabilize the arrangement of components as much as possible.

  Referring also to FIG. 4, in the second embodiment (the same applies to the first embodiment), the first spring set 5 </ b> A includes a first roller pin 51 and a second roller pin 52 that allow the two members to expand and contract one spring 50. The second roller pin 52 and the third roller pin 53 are provided with a gear 521 and a gear 531 which are meshed with each other. The gear 521 and the gear 531 mesh with each other to efficiently relax the rotational speed.

  Referring to FIG. 7 together, in the first embodiment (the same applies to the second embodiment), the spiral spring unit 5 further includes one second spring set 5B, and the second spring set 5B is mutually connected by the two. The fifth roller pin 55 and the first roller pin 51 include a fourth roller pin 54 and a fifth roller pin 55 for extending and contracting one spring, and each of the fifth roller pin 55 and the first roller pin 51 is provided with a gear 551 and a gear 511 that are engaged with each other. Therefore, the first spring set 5A and the second spring set 5B have the same source of elasticity), and in the case of the heavy slat unit 1, the elasticity of the spring is increased.

  In the second embodiment, referring to FIG. 4, the first cord hole 40 of the cord branching device 4 is formed by a gap formed by two guide rollers 43 and a guide roller 44 which are separated from each other. Make the street smooth. The second cord hole 30 of the far end cord portion 3 is also formed by a gap formed by two guide rollers 33 and a guide roller 34 which are spaced apart from each other, and makes the passage of the hole of the cord smooth.

  In the second embodiment, referring to FIG. 4, the inside of the cord branching device 4 and the inside of the far end cord portion 3 are provided with their own upright pins 45 and upright pins 35, and the first lifting cord 60 and the second lifting cord. 61 is corrected before entering the first cord hole 40 and the second cord hole 30 to prevent the cord from being caught by an angle.

  Referring to FIG. 4, in the second embodiment (the same applies to the first embodiment), the spiral spring unit 5 is interposed between the cord branching device 4 and the far end cord portion 3, and the first lifting / lowering unit is arranged. By making the position of the cord 60 and the second lifting / lowering cord 61 up to folding close, the friction variable before folding can be reduced.

  Alternatively, as shown in FIG. 6, the spiral spring unit 5 can be provided outside the far end cord portion 3 in the shell 2 (that is, a position away from the cord branching device 4), and from a position close to the outside. Useful for repairs and replacements. Further, in consideration of the smoothness of the first lifting / lowering cord 60 and the second lifting / lowering cord 61 according to the code holes, the first lifting / lowering cord 60 and the second lifting / lowering cord 61 are installed at the positions.

  As described above, the present invention can be modified in various ways by those skilled in the art, but all of them are included in the scope of protection of the claims for utility model registration attached later.

DESCRIPTION OF SYMBOLS 1 Slat unit 2 Shell 21 Side plate 22 Side plate 3 Far end code | cord | chord 30 Second code hole 31 Entrance guide roller 32 Case 33 Guide roller 34 Guide roller 35 Upright pin 4 Cord branch device 40 First code hole 41 Reverse direction folding part 42 Case 43 Guide roller 44 Guide roller 45 Upright pin 47 Forward direction folding part 48 Central case 49 Rod 5 Spiral spring unit 50 Spring 5A First spring set 51 First roller pin 511 Gear 52 Second roller pin 521 Gear 53 Third roller pin 531 Gear 5B Second spring set 54 Fourth roller pin 541 Gear 55 Fifth roller pin 551 Gear 60 First lifting / lowering cord 61 Second lifting / lowering cord 7 Angle adjuster 8 Square shaft

Claims (9)

Cordless curtain opening / closing interlocking structure, including a shell, a reverse direction folding portion, a forward direction folding portion, and a spiral spring unit,
The shell has a first cord hole and a second cord hole;
The anti-direction folded portion is provided in the shell;
The forward direction folding part is provided in the shell,
The spiral spring unit is provided in the shell, and the spiral spring unit is connected to the first end of each of the first cord and the second cord directly or indirectly by a pair of first spring sets. , The first cord and the second cord are stretched in the same direction,
Among them, the second end of the first cord folds through the forward-direction fold, and then descends through the first cord hole to be connected to the slat unit. The cordless curtain opening / closing interlocking structure characterized in that after the second end is folded back through the counter-direction folding portion, the cord is lowered by passing through the second cord hole and connected to the slat unit.   The counter-direction folding part is a guide pin or a guide roller, the positive direction folding part is a guide pin or a guide roller, and the counter-direction folding part and the positive direction folding part are provided inside a central case, respectively. The central case is provided with a rod between the opposite direction folding portion and the forward direction folding portion, the first cord and the second cord are wound around the rod first, and each is further turned in the opposite direction. The cordless curtain opening / closing interlocking structure according to claim 1, wherein the cordless curtain is wound around a fold portion and the forward folding portion.   A cord branching device is provided, the cord branching device includes a case, and the counter-direction folded portion is provided inside the case, is on the side close to the spiral spring unit, and the forward-direction folding portion is inside the case. Provided on the far side of the spiral spring unit, further provided with a far end cord portion, the first cord hole is provided at the bottom of the cord branching device, and the second cord hole is provided at the bottom portion of the far end cord portion. The opening / closing interlocking structure of the cordless curtain according to claim 1, wherein the opening / closing interlocking structure is provided.   The first spring set includes a first roller pin and a second roller pin that allow two members to expand and contract one spring with each other, a first roller pin that winds the first cord and the second cord, and the second roller pin. 4. The opening / closing interlocking structure of the cordless curtain according to claim 2, wherein the third roller pin is provided with a gear that meshes with each other.   The spiral spring unit further includes one second spring set, and the second spring set includes a fourth roller pin and a fifth roller pin that allow the two members to expand and contract one spring to each other, and the fifth roller pin and the first spring set. 4. A cordless curtain opening / closing interlocking structure according to claim 2, wherein the roller pins are provided with gears that mesh with each other.   4. The cordless curtain opening / closing interlocking structure according to claim 3, wherein the first cord hole of the cord branching unit is formed by a gap generated by two mutually spaced guide rollers.   The cordless curtain opening / closing interlocking structure according to claim 3, wherein the second cord hole of the far end cord part is formed by a gap generated by two mutually spaced guide rollers.   An upright pin is provided in each of the cord branching unit and the far end cord part, and the first cord is guided before entering the first cord hole, and the second cord is placed in the second cord hole. The cordless curtain opening / closing interlocking structure according to claim 3, wherein the structure is straightened before entering.   The cordless curtain opening / closing interlocking structure according to claim 3, wherein the spiral spring unit is interposed between the cord branching device and the far end cord portion.