Electric Curtain Rail

Abstract

The present invention relates to an electric curtain rail that allows for convenient adjustment of the length of the curtain rail and convenient adjustment of the branching point of the left and right curtains. The electric curtain rail according to the present invention comprises: a first rail having a box shape with left and right directions and a center of the bottom surface open, and a first opening formed on the bottom surface; a first-1 rail end disposed at the right end of the first rail and having a driven pulley provided inside; a first-2 rail end disposed at the left end of the first rail; a first housing including a first direction change pulley fixedly disposed inside the first-2 rail end; a second rail disposed inside the first housing and having a box shape with left and right directions and a center of the bottom surface open, and a second opening formed on the bottom surface; a second-1 rail end disposed at the left end of the second rail and having a driving pulley provided inside; a second housing including a second direction change pulley disposed at the right end of the second rail; and a driving belt disposed inside the second housing and engaged with the driving pulley. It is characterized by including a driven belt that is disposed inside a second housing and a first housing and connected to a driving belt via a driven pulley, a first direction change pulley, and a second direction change pulley, a first carrier fixedly disposed at a predetermined position of the driven belt, a second carrier disposed to be coupled and uncoupled at a predetermined position of the driven belt, two or more moving hooks disposed to be freely movable inside and on the bottom surface of the first housing and the second housing, and a driving motor coupled to the bottom surface of the driving pulley.

Description

Technology Field

[0001] The present invention relates to an electric curtain rail in which a curtain is opened or closed to the left or right by the operation of a drive motor, and more specifically, to an electric curtain rail in which the length of the curtain rail is conveniently adjusted and the branching point of the left and right curtains is conveniently adjusted. Background Technology

[0003] A curtain refers to a piece of cloth hung over a window or opening to shade an interior or part of an interior. Regarding the methods of opening and closing curtains, there are two types: one in which multiple movable hooks are provided within a rail of a predetermined length and multiple hooks are arranged at the top of the curtain to connect to the movable hooks, allowing the curtain to be opened or closed by a user grasping one side and moving it, and another in which the curtain is opened or closed by pulling a cord connected to the movable hooks.

[0005] Recently, electric curtains are widely used, which automatically open and close via an electric motor when a separate switch or remote control is operated, eliminating the need for the user to open and close the curtains manually.

[0007] We examine the prior art of the above traditional curtain with reference to Registered Patent Publication No. 10-2488081. The above-mentioned Registered Patent Publication No. 10-2488081 comprises a first housing and a second housing assembled to be movable relative to each other, a first end gear disposed on one side inside the first housing, a second end gear disposed on the other side inside the first housing, a third end gear disposed on the other side inside the second housing, a guide gear disposed inside the second housing and moving along the inside of the second housing, a chain disposed to wrap around the first end gear, the guide gear, the third end gear, and the second end gear in sequence, a first carrier disposed inside the first housing and assembled with the chain to move together, a second carrier disposed inside the second housing and assembled with the chain to move together, a motor assembled to any one of the first end gear, the second end gear, or the third end gear to provide rotational force to circulate the chain, and a device for separating the first housing and the second housing. The assist elastic member is included, wherein the first housing comprises a first frame having a first slot formed open to the lower side, a first housing cap coupled to one end of the first frame, and a second housing cap coupled to the other end of the first frame; the second housing comprises a second frame having a second slot formed open to the lower side, a third housing cap coupled to one end of the second frame, and a fourth housing cap coupled to the other end of the second frame; the second housing comprises a second frame having a second slot formed open to the lower side, a third housing cap coupled to one end of the second frame, and a fourth housing cap coupled to the other end of the second frame; the first housing further comprises a first guide groove disposed on the upper side and extended longitudinally; the second housing further comprises a second guide groove disposed on the upper side and extended longitudinally; and the The assist elastic member is,The apparatus comprises a first assist elastic member disposed in the first guide groove and a second assist elastic member disposed in the second guide groove, wherein the second housing cap comprises a second housing body disposed to surround the first guide groove, a second housing extension part extending from the second housing body toward the second guide groove, a first-1 elastic member catch part disposed in the first guide groove and protruding downward from the second housing body, and a first-2 elastic member catch part disposed in the second guide groove and protruding downward from the second housing extension part, wherein the third housing cap comprises a third housing body disposed to surround the second guide groove, a third housing extension part extending from the third housing body toward the first guide groove, and a third elastic member catch part disposed in the second guide groove and protruding downward from the third housing body. The automatic curtain opening and closing device is characterized by comprising: 2-1 an elastic member catch portion; a 2-2 elastic member catch portion disposed in the first guide groove and protruding downward from the third housing extension portion; wherein one end of the first assist elastic member is caught and fixed by the 1-1 elastic member catch portion and the other end is caught and fixed by the 2-2 elastic member catch portion; and one end of the second assist elastic member is caught and fixed by the 1-2 elastic member catch portion and the other end is caught and fixed by the 2-1 elastic member catch portion.

[0009] Registered Patent Publication No. 10-2488081 has the problem that the first housing and the second housing are configured separately, and the movement axes of the first and second housings are configured separately, which reduces the efficiency of the space for installing curtains and also reduces installation efficiency due to the complex configuration.

[0011] In addition, Registered Patent Publication No. 10-2488081 comprises a binding band that controls the elastic force of the first assist elastic member and the second assist elastic member, and has a configuration in which the first housing and the second housing unfold due to the elastic force of the first assist elastic member and the second assist elastic member when the binding band is separated, which has the disadvantage that it is difficult to finely adjust the length of the first housing and the second housing. Prior art literature

[0013] Republic of Korea Registered Patent Publication No. 10-2488081 The problem to be solved

[0014] The present invention, taking into account the aforementioned problems, aims to provide an electric curtain rail in which the length adjustment of the electric curtain rail is configured in a telescopic manner, thereby improving the installation space efficiency of the curtain rail.

[0016] In addition, the present invention is configured such that one carrier is fixed to the belt and the other carrier is detachable from the belt, and the connection and disconnection of the other carrier and the belt are easily configured, thereby providing an electric curtain rail that allows for quick and convenient selection of the branching point positions of both carriers according to the length adjustment of the curtain rail. means of solving the problem

[0018] The electric curtain rail according to the present invention is a box-shaped structure open in the left and right directions and at the center of the bottom surface, comprising: a first rail having a first opening formed on the bottom surface; a first-1 rail end disposed at the right end of the first rail and having a driven pulley provided inside; a first-2 rail end disposed at the left end of the first rail; and a first housing including a first direction change pulley fixedly disposed inside the first-2 rail end; a second rail disposed inside the first housing and having a box-shaped structure open in the left and right directions and at the center of the bottom surface, having a second opening formed on the bottom surface; a second-1 rail end disposed at the left end of the second rail and having a driving pulley provided inside; and a second housing including a second direction change pulley disposed at the right end of the second rail; a driving belt disposed inside the second housing and engaged with the driving pulley; and a driven pulley, a first direction change pulley, and disposed inside the second housing and the first housing. It is characterized by including a driven belt connected to a driving belt via a second direction change pulley, a first carrier fixedly positioned at a predetermined position of the driven belt, a second carrier positioned to be coupled and uncoupled at a predetermined position of the driven belt, two or more moving hooks positioned to be freely movable inside and on the bottom surface of the first housing and the second housing, and a driving motor coupled to the bottom surface of the driving pulley. Effects of the invention

[0020] The electric curtain rail according to the present invention is configured in a telescopic manner in which the inner tube slides along the same central axis as the outer tube to adjust its length, and since the central axes of the inner tube and the outer tube are the same, the installation space efficiency of the curtain rail is improved.

[0022] In addition, the present invention is configured such that one carrier is fixed to a belt and the other carrier can be coupled to and uncoupled from the belt, and the coupling and uncoupling operations are performed quickly and easily without a separate tool, thereby providing the effect of convenient selection of the branching point position of the carrier. Brief explanation of the drawing

[0024] FIG. 1 is a bottom perspective view showing the overall configuration of an electric curtain rail according to the present invention. FIGS. 2A and 2B are exemplary diagrams showing the length adjustment state of an electric curtain rail according to the present invention. FIGS. 3A and 3B are exemplary diagrams simply illustrating the length adjustment operation of an electric curtain rail according to the present invention. FIG. 4 is an exploded bottom perspective view showing the overall configuration of an electric curtain rail according to the present invention. FIGS. 5A and 5B are exemplary diagrams briefly illustrating the curtain opening and curtain closing operations of an electric curtain rail according to the present invention. FIG. 6 is an exploded perspective view showing a first housing according to the present invention. FIG. 7 is an exploded perspective view showing a second housing according to the present invention. FIG. 8 is a left side view showing the positions of the first direction change pulley and the second direction change pulley according to the present invention. Figure 9 is a cross-sectional view along line A-A' of Figure 2. FIG. 10 is an exploded bottom perspective view of the first carrier according to the present invention. FIG. 11 is a bottom perspective view showing the combined state of the first carrier and the driven belt according to the present invention. Figure 12 is a cross-sectional view along line B-B' of Figure 2. FIG. 13 is an exploded bottom perspective view of a second carrier according to the present invention. FIG. 14 is a bottom perspective view showing the combined state of the second carrier and the driven belt according to the present invention. Figure 15 is a cross-sectional view along line C-C' of Figure 13. FIGS. 16A and 16B are planar exemplary diagrams illustrating the operation and function of the second carrier according to the present invention. Specific details for implementing the invention

[0025] The specific details for solving the problem according to the present invention are described in detail below together with the attached drawings. However, the attached drawings may be exaggerated, omitted, or schematically illustrated for the convenience of explaining the essential parts, and terms and names used in the description may be implicitly determined by the shape, function, or role of the components rather than their dictionary meanings. Descriptions regarding direction are determined based on the direction first presented in the first drawing, and descriptions regarding position are determined as inside or outside based on the center of each component or the center of a circle. Furthermore, specific descriptions regarding prior art and ordinary technology are omitted or replaced with simple symbols or names as they may obscure the essence.

[0027] In addition, specific structures, shapes, forms, arrangements, sizes, etc. of the configuration identifiable through the drawings, and the operation of the configuration and the resulting effects, etc., which can be inferred through the drawings, may obscure the essence and may be omitted from detailed descriptions; bolts, welds, holes, etc., applied through the combination of the configurations may obscure the essence and may be omitted from the drawings; some components may be exaggerated, simplified, or omitted to aid in understanding the present invention; and in the description below, the front, back, left, right, inner, and outer directions refer to the directions illustrated in FIG. 1 and FIG. 2.

[0029] FIG. 1 is a bottom perspective view showing the overall configuration of an electric curtain rail according to the present invention, FIG. 2A and 2B are exemplary diagrams showing the length adjustment state of an electric curtain rail according to the present invention, FIG. 3A and 3B are exemplary diagrams showing the length adjustment operation of an electric curtain rail according to the present invention in a simplified manner, FIG. 4 is an exploded bottom perspective view showing the overall configuration of an electric curtain rail according to the present invention, and FIG. 5A and 5B are exemplary diagrams showing the curtain opening and curtain closing operation of an electric curtain rail according to the present invention in a simplified manner.

[0031] Referring to FIGS. 1 to 5, the electric curtain rail according to the present invention comprises:

[0032] A first housing (100) comprising: a first rail (110) having a box shape with left and right directions and a bottom center open, with a first opening (111) formed on the bottom surface; a first-1 rail end (120) disposed at the right end of the first rail (110) and having a driven pulley (130) inside; a first-2 rail end (140) disposed at the left end of the first rail (110); and a first direction change pulley (150) fixedly disposed inside the first-2 rail end (140);

[0033] A second housing (200) comprising: a second rail (210) disposed inside a first housing (100) and having a second opening (211) formed on the bottom surface in a box shape with left, right, and bottom center open; a second-1 rail end (220) disposed at the left end of the second rail (210) and having a drive pulley (230) inside; and a second direction change pulley (240) disposed at the right end of the second rail (210);

[0034] A drive belt (500) disposed inside the second housing (200) and engaged with a drive pulley (230);

[0035] A driven belt (600) disposed inside the second housing (200) and the first housing (100) and connected to the driving belt (500) via the driven pulley (130), the first direction change pulley (150), and the second direction change pulley (240);

[0036] A first carrier (300) fixedly positioned at a predetermined location on the driven belt (600);

[0037] A second carrier (400) positioned to be coupled and uncoupled at a predetermined position of the driven belt (600);

[0038] Two or more movable hooks (700) arranged to be freely movable inside and on the bottom surface of the first housing (100) and the second housing (200);

[0039] It includes a drive motor (800) coupled to the bottom surface of a drive pulley (230).

[0041] A detailed description with reference to drawings of the first housing (100) and the second housing (200) is added below with reference to FIGS. 6 and FIGS. 7, and below, the overall configuration and operation of the electric curtain rail according to the present invention will be described first.

[0043] Referring to FIG. 2, the electric curtain rail according to the present invention is configured such that the second housing (200) is freely movable inside the first housing (100) so that the user can manually move the second housing (200) to the left or right to adjust the length of the entire curtain rail. The moving hook (700) placed in the first opening (111) and the second opening (211) inside the first housing (100) and the second housing (200) is a known technology for curtain rails, and the driving motor (800) is also a known technology for curtain rails, so a detailed description is omitted.

[0045] Referring to FIG. 3, when the second housing (200) moves to the left and the total length of the curtain rail is extended, the second direction change pulley (240) also moves to the left at the same time, and conversely, when the second housing (200) moves to the right, the second direction change pulley (240) moves to the right at the same time. That is, when the total length of the curtain rail is extended, the distance between the first direction change pulley (150) and the second direction change pulley (240) becomes shorter, and when the total length of the curtain rail is shortened, the distance between the first direction change pulley (150) and the second direction change pulley (240) becomes wider. This is because the second direction change pulley (240) is fixedly positioned at the right end of the second housing (200).

[0047] Referring to FIGS. 4 and 5, the second carrier (400) is positioned so as to be coupled and uncoupled at a predetermined position in the front direction of the driven belt (600), and the first carrier (300) is fixedly positioned at a predetermined position in the rear direction of the driven belt (600) where the second carrier (400) is positioned. The predetermined positions of the second carrier (400) and the first carrier (300) will be described in detail below.

[0049] As shown in FIG. 5, when the drive pulley (230) rotates clockwise according to the operation of the drive motor (800), the first carrier (300) moves to the right and the second carrier (400) moves to the left, closing the curtain, and conversely, when the drive pulley (230) rotates counterclockwise, the first carrier (300) moves to the left and the second carrier (400) moves to the right, opening the curtain.

[0051] According to the rotation of the drive pulley (230), the drive belt (500) engaged with the drive pulley (230) has its respective grooves and teeth engaged with the drive pulley (230), and moves precisely in synchronization with the rotation of the drive pulley (230), and the driven belt (600) combined with the drive belt (500) is composed of a flat belt without grooves and teeth and is driven according to the movement of the drive belt (500).

[0053] Referring to FIG. 5, the configuration and connection of the driven belt (600) are examined in detail. Assuming the front end of the driving belt (500) is the starting point of the driven belt (600), the first driven row (610) is configured from left to right, the second driven row (620) is configured from right to left by changing direction 180 degrees via the driven pulley (130), the third driven row (630) is configured from left to right by changing direction 180 degrees via the first direction change pulley (150), and finally, the fourth driven row (640) is configured from right to left by changing direction 180 degrees via the second direction change pulley (240), and the left end of the fourth driven row (640) is connected to the rear end of the driving belt (500).

[0055] And, the first carrier (300) is fixedly positioned in the passive row 4 (640), and the second carrier (400) is positioned in the passive row 1 (610) so as to be connectable and disconnectable.

[0057] According to the configuration described, in the electric curtain rail according to the present invention, when the length of the entire curtain rail increases, the lengths of the 3rd row (630) and the 4th row (640) of the passive line become shorter, and conversely, when the length of the entire curtain rail decreases, the lengths of the 3rd row (630) and the 4th row (640) of the passive line become longer.

[0059] Referring to FIG. 5, the operation of resetting the position of the branch point when the left and right direction lengths of the electric curtain rail according to the present invention are changed is examined. First, the user releases the connection between the second carrier (400) and the driven row (610), then rotates the drive motor (800) to move the position of the first carrier (300) near the center of the curtain rail, and finally moves the position of the second carrier (400) near the first carrier, and then reconnects the second carrier (400) and the driven row (610).

[0061] In the second carrier (400) according to the present invention, the operation of connecting or disconnecting with the driven belt (600) and the driven first row (610) is performed easily and quickly without a separate tool, so the operation of setting the curtain branch point is performed very efficiently.

[0063] FIG. 6 is an exploded perspective view showing a first housing according to the present invention. The first housing (100) according to the present invention is a box shape with left and right directions open and includes a first rail (110) having a first opening (111) formed on the bottom surface, a first-1 rail end (120) disposed at the right end of the first rail (110) and having a driven pulley (130) inside, a first-2 rail end (140) disposed at the left end of the first rail (110), and a first direction change pulley (150) fixedly disposed inside the first-2 rail end (140).

[0065] FIG. 7 is an exploded perspective view showing a second housing according to the present invention. The second housing (200) according to the present invention is a box shape with left and right directions open and includes a second rail (210) having a second opening (211) formed on the bottom surface, a second-1 rail end (220) disposed at the left end of the second rail (210) and equipped with a driving pulley (230) inside, and a second direction change pulley (240) disposed at the right end of the second rail (210).

[0067] The second housing (200) includes a front belt space (212) formed in the inner front direction where the first row of passive (610) is arranged, and a rear belt space (213) formed in the inner rear direction where the second row of passive (620), the third row of passive (630), and the fourth row of passive (640) are arranged, and a rear belt space opening (214) is formed in the rear belt space (213). The rear belt space opening (214) is a space for a fixing bolt (330) that fixes the fourth row of passive (640) and the first carrier (300) to move in the left and right directions.

[0069] FIG. 8 is a left side view showing the positions of the first direction change pulley and the second direction change pulley according to the present invention. Referring to FIGS. 6 to 8, the first direction change pulley (150) is fixedly positioned inside the first-second rail end (140) and is located in the rear direction inside the rear belt space (213) of the second rail (210) when viewed from the left side, and the second direction change pulley (240) is positioned at the right end of the rear belt space (213) of the second rail (210) and is located in the front direction of the rear belt space (213) when viewed from the left side.

[0071] By the configuration of the first direction change pulley (150) and the second direction change pulley (240) described above, the 4th row (640), the 3rd row (630), and the 2nd row (620) are placed in the rear belt space (213) of the second rail (210), and the 1st row (610) is placed in the front belt space (212).

[0073] FIG. 9 is a cross-sectional view along line A-A' of FIG. 2, FIG. 10 is a bottom exploded perspective view of the first carrier according to the present invention, and FIG. 11 is a bottom perspective view showing the combined state of the first carrier and the driven belt according to the present invention. FIG. 9 is expressed in the form of a cross-sectional view to make it easy to understand the combined relationship between the second rail (210) and the first carrier (300).

[0075] Referring to FIGS. 9 to 12, the first carrier (300) according to the present invention comprises a first-1 coupling plate (310) positioned at the top, a first-2 coupling plate (320) positioned in the rear direction of the first-1 coupling plate (310), a fixing bolt (330) penetrating the first-1 coupling plate (310), the first-2 coupling plate (320), and the 4th row (640) of the 4th row of the 600-driven belt, and a first hook plate (340) positioned at the bottom of the first-1 coupling plate (310). A hook provided at the top of the curtain is hooked into the through hole of the first hook plate (340). The first hook plate (340) is positioned outside the first housing (100) and the second housing (200) through the first opening (111) and the second opening (211).

[0077] As illustrated in FIG. 9, the first-1 coupling plate (310) is placed in the front belt space (212) of the second rail (210), the first-2 coupling plate (320) is placed in the rear belt space (213) of the second rail (210), and the fixing bolt (330) is placed in the rear belt space opening (214) of the second rail (210).

[0079] Depending on the configuration, the first carrier (300) is not separated from the second rail (210) by the first-second connecting plate (320) placed inside the rear belt space (213), and can move left and right along the front wall of the rear belt space (213).

[0081] FIG. 12 is a cross-sectional view along line B-B' of FIG. 2, FIG. 10 is a bottom exploded perspective view of a first carrier according to the present invention, FIG. 11 is a bottom perspective view showing the combined state of the first carrier and the driven belt according to the present invention, FIG. 13 is a bottom exploded perspective view of a second carrier according to the present invention, FIG. 14 is a bottom perspective view showing the combined state of the second carrier and the driven belt according to the present invention, FIG. 15 is a cross-sectional view along line C-C' of FIG. 13, and FIG. 16A and 16B are planar example views showing the operation and function of the second carrier according to the present invention.

[0083] Referring to FIGS. 12 to 16, the second carrier (400) according to the present invention comprises a belt connection part (410) configured at the top to which a driven row (610) of a driven belt (600) is connected, a detachable support part (420) disposed below the belt connection part (410), a pressure plate (440) disposed in contact with the front of the belt connection part (410) and the detachable support part (420), an eccentric detachable part (430) disposed penetrating the pressure plate (440) and the detachable support part (420), and a second hook plate (450) disposed below the detachable support part (420). A hook provided at the top of the curtain is hooked into the through hole of the second hook plate (450). The lower portions of the second hook plate (450), the detachable support portion (420), and the pressure plate (440) are positioned outside the first housing (100) and the second housing (200) through the first opening (111) and the second opening (211).

[0085] The belt connection portion (410) is positioned in the rear direction and includes a second-1 connecting plate (411) having two passive belt connection holes (412) that penetrate in the front and rear directions, and a second-2 connecting plate (413) spaced apart on both the left and right sides in the front direction of the second-1 connecting plate (411).

[0087] Referring to FIG. 15, the first row of the driven belt (600) is in contact with the left front of the second-1 coupling plate (411), the central rear of the second-1 coupling plate (411), and the right front of the second-1 coupling plate (411), and the second-2 coupling plate (413) is positioned on the left front and right front of the second-1 coupling plate (411). According to this configuration, the first row of the driven belt (610) is coupled to the second carrier (400) while passing through the driven belt connection hole (412), so that the first row of the driven belt (610) and the second carrier (400) are prevented from being separated even when the second carrier (400) moves in the left and right directions.

[0089] The detachable support member (420) is formed on the bottom surface of the belt connection member (410), and a rear screw tube (422) with an internal female screw is formed on the rear side, and a slide plate (421) protruding in the front and rear directions is formed on the left and right edges. The pressure screw (435) of the eccentric detachable member (430) is fastened to the rear screw tube (422), and the slide plate (421) prevents the second carrier (400) from being separated from the second rail (210) and at the same time prevents the driven first row (610) of the driven belt (600) from sagging downward due to the load of the second carrier (400).

[0091] The pressure plate (440) is configured to be in contact with the second-1 coupling plate (411) and the detachable support part (420). The pressure plate (440) acts to press or release pressure on the passive row (610) positioned on the front of the second-1 coupling plate (411) according to the operation of the eccentric detachable part (430), thereby causing the passive row (610) and the second carrier (400) to be coupled or uncoupled.

[0093] The eccentric detachable member (430) comprises a square shaft (433) of a predetermined length arranged in the front and rear directions, an eccentric shaft (432) arranged at the front end of the square shaft (433) and penetrating the square shaft (433) in the up and down directions, an eccentric lever (431) coupled to the eccentric shaft (432), a pressure member (434) arranged at the rear of the eccentric lever (431) and fixedly coupled to the square shaft (433), and a pressure screw (435) formed to protrude in the rearward direction from the rear end of the square shaft (433) and penetrating the pressure plate (440) and the detachable member support (420).

[0095] The eccentric detachable member (430) according to the present invention may include an elastic body such as a spring, and it is preferable that the elastic body be placed between the detachable member support part (420) and the pressure plate (440).

[0097] Referring to FIG. 16A, after pulling the eccentric lever (431) forward, turning the eccentric lever (431) to the left releases the connection between the pressure screw (435) and the rear screw tube (422), and the pressure applied by the pressure plate (440) toward the second-1 coupling plate (411) of the belt connection part (410) is reduced, thereby releasing the connection between the second carrier (400) and the driven row (610). In this situation, the user can freely move the second carrier (400) in the left and right directions.

[0099] Referring to FIG. 16B, when the eccentric lever (431) is turned to the right, the pressure screw (435) and the rear screw tube (422) are connected, and the pressure applied by the pressure plate (440) in the direction of the second-1 coupling plate (411) of the belt connection part (410) becomes stronger, and when the eccentric lever (431) is pushed to the right, the pressure of the pressure plate (440) becomes even stronger, and the second carrier (400) and the driven row (610) are connected.

[0101] The above invention is intended to facilitate understanding of the principles of the configuration pursued by the invention and the specific components included therein, and to provide explanations based on such drawings. The structure, form, shape, arrangement, direction, and quantity of the configuration and specific components included in the invention are determined in consideration of the principles to be pursued, and these may be modified in various ways as needed. The configuration and specific components presented in the present invention serve as examples for those skilled in the art to demonstrate which principles are most desirable to apply in order to obtain the effects sought in the invention and to achieve better effects from them. Accordingly, while it is most desirable to complete the present invention by including all the configurations described above, the invention may be completed by selecting or excluding some of the configurations described above for cost reduction, ease of manufacturing, environmental conditions, or as necessary, or by separating one or more configurations and merging them with other configurations. Furthermore, each configuration described above may be independently applied to technical fields other than this technical field, taking into account principles, uses, functions, roles, operations, effects, etc. Based on this, the scope of rights of the present invention may be specified as a scope that encompasses the claims of the present invention as much as possible as follows, and claims may be made in order of broadest scope. Explanation of the symbols

[0102] 100: 1st housing 110: 1st rail 111: 1st opening 120: 1-1 rail end 130: Driven pulley 140: 1st-2nd rail ends 150: 1st changeover pulley 200: 2nd housing 210: Second rail 211: Second opening 212: Front belt space 213: Rear belt space 214: Rear belt space opening 220: 2-1 rail end 230: Drive pulley 240: Second direction change pulley 300: 1st Carrier 310: 1st-1st Connecting Plate 320: 1st-2nd connecting plate 330: Fixing bolt 340: 1st hook plate 400: 2nd carrier 410: Belt connection part 411: 2-1 connecting plate 412: Driven belt connection hole 413: 2-2 connecting plate 420: Detachable support part 421: Slide plate 422: Rear thread tube 430: Eccentric release fitting 431: Eccentric lever 432: Eccentric shaft 433: Rectangular axis 434: Pressure port 435: Pressure screw 440: Pressure plate 450: Second hook plate 500: Drive belt 600: Driven belt 610: Driven first row 620: Passive 2nd column 630: Passive 3rd column 640: Passive 4th column 700: Moving hook 800: Drive motor

Claims

Claim 1 A first housing (100) comprising: a first rail (110) having a box shape with left and right directions and a bottom center open, with a first opening (111) formed on the bottom surface; a first-1 rail end (120) disposed at the right end of the first rail (110) and having a driven pulley (130) inside; a first-2 rail end (140) disposed at the left end of the first rail (110); and a first direction change pulley (150) fixedly disposed inside the first-2 rail end (140); a second rail (210) disposed inside the first housing (100) having a box shape with left and right directions and a bottom center open, with a second opening (211) formed on the bottom surface; a second-1 rail end (220) disposed at the left end of the second rail (210) and having a driving pulley (230) inside; A second housing (200) including a second direction change pulley (240) disposed at the right end of the second rail (210); a drive belt (500) disposed inside the second housing (200) and engaged with a drive pulley (230); a driven belt (600) disposed inside the second housing (200) and the first housing (100) and connected to the drive belt (500) via a driven pulley (130), a first direction change pulley (150), and a second direction change pulley (240); a first carrier (300) fixedly disposed at a predetermined position of the driven belt (600); a second carrier (400) disposed to be coupled and uncoupled at a predetermined position of the driven belt (600); and two or more carriers disposed to be freely movable inside and on the bottom surface of the first housing (100) and the second housing (200). It includes a moving hook (700); a driving motor (800) coupled to the bottom surface of a driving pulley (230); the driving belt (500) has grooves and teeth that mesh with the driving pulley (230); the driven belt (600) coupled to the driving belt (500) is composed of a flat belt without grooves or teeth and is driven according to the movement of the driving belt (500); the driven belt (600) comprises a first driven row (610) configured from left to right with the front end of the driving belt (500) as the starting point of the driven belt (600); and a second driven row (620) configured from right to left by changing direction 180 degrees via the driven pulley (130).It is composed of a 3rd row (630) configured from left to right by changing direction 180 degrees via a 1st direction change pulley (150); and a 4th row (640) configured from right to left by changing direction 180 degrees via a 2nd direction change pulley (240); the left end of the 4th row (640) is connected to the rear end of the drive belt (500); and the 1st carrier (300) is composed of a 1st-1 coupling plate (310) positioned on the upper side; and a 1st-2 coupling plate (320) positioned in the rear direction of the 1st-1 coupling plate (310). A fixing bolt (330) penetrating the first-1 coupling plate (310), the first-2 coupling plate (320), and the fourth row (640) of the driven belt (600); a first hook plate (340) disposed at the bottom of the first-1 coupling plate (310); the second carrier (400) is configured at the top and includes a belt connection part (410) to which the first row (610) of the driven belt (600) is connected; a detachable support part (420) disposed at the bottom of the belt connection part (410); a pressure plate (440) disposed in contact with the front of the belt connection part (410) and the detachable support part (420); an eccentric detachable part (430) disposed penetrating the pressure plate (440) and the detachable support part (420); and a lower portion of the detachable support part (420). It includes a second hook plate (450); the eccentric detachable member (430) comprises a square shaft (433) of a predetermined length arranged in the front and rear directions; an eccentric shaft (432) arranged at the front end of the square shaft (433) and penetrating the square shaft (433) in the upper and lower directions; an eccentric lever (431) coupled to the eccentric shaft (432); a pressure member (434) arranged at the rear of the eccentric lever (431) and fixedly coupled to the square shaft (433); and a pressure screw (435) formed protruding in the rearward direction from the rear end of the square shaft (433) and penetrating the pressure plate (440) and the detachable member support part (420); wherein, depending on the rotational operation of the eccentric lever (431), the pressure plate (440) is pressed or released in the direction of the belt connection part (410), thereby allowing the belt without a separate tool to be attached. An electric curtain rail characterized in that the second carrier (400) is coupled to or uncoupled from the first row of the passive row (610). Claim 2 delete Claim 3 delete

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