JP2008280800A - Vertical blind - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To miniaturize a head rail and a carrier by simplifying an operation mechanism to reduce the number of part items. <P>SOLUTION: The vertical blind comprises a head rail 11, a plurality of carriers 12 inserted to the head rail to be slidable and rotatable, and a louver 17 suspended by the carriers. A pair of connecting cords 18 to be stretched when the space between adjacent carriers is a predetermined width is connected to each of the carriers. The vertical blind further comprises a carrier fixing means 23 for fixing the carrier at the base end of the head rail to the base end of the head rail, and a carrier locking means 24 for separably fixing the carrier at the top end of the head rail to the top end of the head rail in a state where the pair of connecting code 18 is stretched. The pair of stretched connecting codes 18 transmits rotation of one carrier to the other carrier to rotate the other carrier. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a vertical blind in which a louver is suspended from a plurality of carriers inserted so as to be slidable and rotatable in a head rail.

Conventionally, a head rail, a plurality of carriers that are slidably and rotatably inserted in the head rail, and a louver that is suspended by the carrier and moves with the movement of the carrier and rotates with the rotation of the carrier. A vertical blind provided (for example, refer to Patent Document 1) is known. In this vertical blind, a large number of louvers suspended vertically are used as light-shielding members, and an open / close rod for opening / closing the blind in the longitudinal direction inside the head rail and a rotary rod for rotating the louver. Is provided. The carrier for suspending the louver is provided with a moving mechanism for moving the carrier along the head rail by rotation of the opening / closing rod and a rotation mechanism for rotating the louver by rotation of the rotating rod. Then, by rotating the open / close rod, the carrier can be opened / closed between the open state of the blinds gathered on the base end side in the longitudinal direction of the head rail and the closed state of the blinds aligned substantially evenly over the entire length of the head rail. In addition, the louver can be rotated around the vertical axis by rotating the rotating rod in the closed state of the blind so that the dimming state can be adjusted.
JP 7-293150 A (specification [0004], FIG. 1)

However, the conventional vertical blind has a problem in that the opening and closing rod and the rotating rod must be provided inside the head rail, and the head rail becomes large. In addition, the carrier to be inserted into the head rail must have both a moving mechanism for moving the carrier along the head rail by the rotation of the opening / closing rod and a rotation mechanism for rotating the louver by the rotation of the rotating rod. There was a problem that the carrier became complicated. In particular, a worm gear and a worm wheel are generally provided in the moving mechanism and the rotating mechanism provided in the carrier, and the number of parts of the carrier including these increases, the carrier becomes larger, and these are inserted. The head rails are further increased in size, and there is a problem that their unit price is significantly increased.
An object of the present invention is to provide a vertical blind capable of simplifying an operation mechanism to reduce the number of parts and miniaturizing a head rail and a carrier.

As shown in FIG. 1, the invention according to claim 1 includes a head rail 11, a plurality of carriers 12 that are slidably and rotatably inserted into the head rail 11, and a carrier 12 that is suspended by the carrier 12. This is an improvement of a vertical blind provided with a louver 17 that moves with movement and rotates with rotation of the carrier 12.
The characteristic configuration is that a pair of connecting cords 18 that are tensioned when the distance between adjacent carriers 12 reaches a predetermined width are respectively connected to a plurality of carriers 12, and the carrier 12 at the base end of the head rail 11 is connected to the base of the head rail 11. Carrier fixing means 23 for fixing to the end, and carrier locking means 24 for releasably fixing the carrier 12 at the tip of the head rail 11 to the tip of the head rail 11 in a state where the pair of connecting cords 18 are tensioned, The pair of connecting cords 18 are configured to connect a plurality of carriers 12 from both sides in the width direction of the head rail 11 and transmit the rotation of one carrier 12 to the other carrier 12 to rotate the other carrier 12. There is.

  In the vertical blind according to the first aspect, when the plurality of carriers 12 are aligned with the louver 17 almost uniformly over the entire length of the head rail 11, the blind is closed. 12 is fixed to the base end of the head rail 11 by the carrier fixing means 23, the carrier 12 at the tip of the head rail 11 is fixed to the tip of the head rail 11 by the carrier locking means 24, and the pair of connecting cords 18 are in tension. Maintained at. When one carrier 12 is rotated in this state, the rotation of the carrier 12 is transmitted to the other carrier 12 through a pair of tensioned connecting cords 18, and all the carriers 12 can be rotated in the same direction. This makes it possible to adjust the dimming state.

  Therefore, according to the first aspect of the present invention, the rotation rod for rotating the louver conventionally required inside the head rail 11 and the rotation mechanism for the carrier conventionally required for rotating the louver by rotating the rotation rod are provided. do not need. Therefore, the head rail 11 and the carrier 12 can be remarkably simplified as compared with the conventional one, and the number of parts can be significantly reduced, so that the head rail 11 and the carrier 12 can be made relatively small. In addition, since the number of parts can be reduced as compared with the prior art, a relatively compact and inexpensive vertical blind can be obtained.

The invention according to claim 2 is the invention according to claim 1, wherein caps 21 and 22 for closing the base end and the distal end of the head rail 11 are provided at the base end and the distal end of the head rail 11, respectively. The cap 21 is provided with a carrier fixing means 23, and the cap 22 at the tip is provided with carrier locking means 24 and 46.
In the vertical blind according to the second aspect, the carrier fixing means 23 is attached to the base end of the head rail 11 and the head rail 11 is attached to the base end of the head rail 11 by a simple operation of simply attaching a cap to the base end and the front end of the head rail 11. Carrier locking means 24 can be attached to the tip.

The invention according to claim 3 is the invention according to claim 1 or 2, and further, as shown in FIG. 8, the carrier 12 or the head rail at the base end of the head rail 11 so that the pair of connecting cords 18 are tensioned. The carrier urging means 23b for urging the carrier 12 at the tip of 11 is provided on either one or both of the carrier fixing means 23 and the carrier locking means.
In the vertical blind according to the third aspect, the carrier urging means 23b can maintain the tensioned state of the pair of connecting cords 18 in the closed state of the blind, and the rotation of one carrier 12 can be changed. Can be effectively transmitted to the carrier 12.

The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein an operating handle 15 for moving or rotating the carrier 12 is suspended from the carrier 12 at the tip of the head rail 11. Features.
In the vertical blind according to claim 4, the carrier 12 at the tip can be moved via the operation handle 15, and an open / close rod for opening and closing the blind required for the conventional head rail 11, A moving mechanism for moving the carrier along the head rail by the rotation of the opening / closing rod required for the carrier is not required. Therefore, the head rail 11 and the carrier 12 in the fourth aspect can be significantly simplified as compared with the conventional one to further reduce the number of parts, thereby further reducing the size of the head rail 11 and the carrier 12.
Further, by rotating the operation handle 15 around the center axis thereof, the carrier 12 at the tip end where the operation handle 15 is suspended can be rotated, and the dimming state adjustment performed by rotating the carrier 12 Can be performed relatively easily.

The invention according to claim 5 is the invention according to any one of claims 1 to 4, and as shown in FIG. 12, a circulating cord 41 that can be rotated from the outside is installed over the entire length of the head rail 11. One of the linear portions of the circulating cord 41 in the head rail 11 is connected to the carrier 12 at the tip, and the carrier 12 at the tip is movable by the rotation of the circulating cord 41.
In the vertical blind according to the fifth aspect, the carrier 12 at the tip can be directly moved by rotating the circling cord 41, and the opening and closing for opening and closing the blind required for the head rail 11 in the past is possible. There is no need for a moving mechanism for moving the carrier along the head rail by the rotation of the rod and the opening / closing rod required in the conventional carrier. Therefore, the head rail 11 and the carrier 12 in claim 5 can be significantly simplified as compared with the conventional one to further reduce the number of parts, thereby further reducing the size of the head rail 11 and the carrier 12.

The invention according to claim 6 is the invention according to claim 5, characterized in that the carrier locking means 46 is a cord fixing means for prohibiting the rotation of the circling cord 41.
In the vertical blind according to the sixth aspect of the invention, the movement of the carrier 12 at the tip can be prohibited by prohibiting the rotation of the circling cord 41, and there is no need to provide a separate carrier locking means. Can do.

  In the vertical blind according to the present invention, a plurality of carriers are connected by a pair of connecting cords that are tensioned when an interval between adjacent carriers reaches a predetermined width, and the carrier at the base end of the head rail is fixed to the base end of the head rail. The fixing means and carrier locking means for removably fixing the carrier at the tip of the head rail to the tip of the head rail in a state where the pair of connecting cords are in tension. Since it is configured to connect multiple carriers from both sides and transmit the rotation of one carrier to the other carrier to rotate the other carrier, it is necessary to open and close the blinds conventionally required inside the head rail. There is no need for an opening / closing rod and a rotating rod for rotating the louver. Further, there is no need for a moving mechanism for moving the carrier along the head rail by the rotation of the opening / closing rod required in the conventional carrier and a rotating mechanism for rotating the louver by the rotation of the rotating rod. Therefore, the head rail and the carrier can be significantly simplified as compared with the conventional one, and the number of parts can be significantly reduced, so that the head rail and the carrier can be made relatively small. In addition, since the number of parts can be reduced as compared with the prior art, a relatively compact and inexpensive vertical blind can be obtained.

Next, the best mode for carrying out the present invention will be described with reference to the drawings.
As shown in FIG. 1, a vertical blind 10 according to the present invention includes a head rail 11 and a plurality of carriers 12 that are slidably and rotatably inserted into the head rail 11. As shown in FIG. 2, the head rail 11 has a box shape in cross section, and is fixed to the wall 10a or the like in the upper frame of the window, for example, along the upper frame of the window via the bracket 10b or the like. The head rail 11 is provided so that an L-shaped leg 11b and an inverted L-shaped leg 11c face inward from both sides of the top surface 11a, and a gap 11d into which the carrier 12 is inserted is long. It extends in the direction.

  On the other hand, the carrier 12 inserted into the head rail 11 shown in FIG. 2 has a carrier body 13 inserted into the head rail 11, a hook 14 provided at the lower portion of the carrier body 13, and an upper portion of the carrier body 13. The operation unit 16 is provided. The carrier body 13 includes a small diameter portion 13a located in a gap 11d extending in the longitudinal direction of the head rail 11, and an upper large diameter portion 13b provided above and below the small diameter portion 13a so as to sandwich the gap 11d from above and below. It has a lower large diameter portion 13c. The cross section of the small diameter portion 13a is formed in a circular shape that can rotate between the gaps 11d, whereby the carrier body 13 is slidable and rotatably inserted into the head rail 11.

  The hook 14 is formed integrally with the lower large diameter portion 13 c and is configured to appear below the head rail 11 in a state where the carrier body 13 is inserted into the head rail 11. The hook 14 suspends a louver 17 (FIG. 1). As shown in FIG. 3, a hook body 14b having a hook portion 14a for suspending the louver 17 formed at the tip, and the hook And a cover piece 14c provided along the hook body 14b so as to cover the portion 14a. The cover piece 14c is configured to prevent the louver 17 from being inadvertently detached from the hook portion 14a by sandwiching the upper portion of the louver 17 hooked to the hook portion 14a together with the hook body 14b. Here, the louver 17 is a long sheet-like material made of resin, and a hole 17a is formed on the upper portion of the louver 17 so as to be hooked on the flange 14a. It is suspended by the carrier 12.

  As shown in FIGS. 2 and 3, the operation portion 16 is connected to the upper large diameter portion 13 b via the locking barrel portion 16 a. The upper large-diameter portion 13b, the locking barrel portion 16a, and the operation portion 16 are integrally formed. Specifically, the operation portion 16 includes a disk portion 16b formed by being connected to the upper large-diameter portion 13b via a locking body portion 16a, and a pair of support shafts 16c erected on the disk portion 16b. And a connecting plate 16d for connecting the upper edges of the pair of support shafts 16c.

  Returning to FIG. 1, a plurality of carriers 12 are inserted into the head rail 11. When the plurality of carriers 12 are collected together with the louvers 17 suspended on the base end side in the longitudinal direction of the head rail 11, the unillustrated blind is opened, and the plurality of carriers 12 are removed from the opened state of the blind. When the head rail 11 is aligned with the louver 17 over the entire length of the head rail 11, the blind shown in FIG. 1 is closed. Then, by inserting the plurality of carriers 12 into the head rail 11 so as to be slidable and rotatable, it is possible to open and close between the open state and the closed state. In this embodiment, an operation handle 15 for moving or rotating the carrier 12 at the tip is suspended from the carrier 12 at the tip of the head rail 11, and louvers 17 are suspended at all other carriers 12. The case is shown in FIG.

  In the open state of the blind shown in FIG. 1, it is necessary to align the carriers 12 almost uniformly over the entire length of the head rail 11 so that the intervals between the adjacent carriers 12 have a predetermined width. Therefore, the plurality of carriers 12 are connected by a pair of connecting cords 18, and the connecting cords 18 are configured to be tensioned when the interval between adjacent carriers 12 reaches a predetermined width. Each of the pair of connecting cords 18 in this embodiment has a length substantially equal to that of the head rail 11, and is attached to the carrier 18 via a pivot member 19. The plurality of pivot members 19 are provided over the entire length of the head rail 11 with a predetermined interval. When the carrier 12 is attached to the connecting cord 18 through these pivot members 19, the adjacent carriers 12 are also provided in the connecting cord 18 with a width corresponding to a predetermined width.

  As shown in detail in FIG. 3, the pivot member 19 is formed with a recess 19 a that can be fitted into the pivot shaft 16 c in the operation portion 16 of the carrier 12, and the pivot shaft 16 c has a circular cross section. In a state of being fitted into the shaft 16c, the shaft 16c is provided so as to be rotatable with respect to the support shaft 16c. As shown in FIGS. 4 and 5, the tensioned pair of connecting cords 18 connects the plurality of carriers 12 from both sides of the head rail 11 in the width direction. Therefore, when one carrier 12 rotates, the rotation of the connecting cords 18 It is also transmitted to other carriers 12 via 18. That is, the tensioned pair of connecting cords 18 is configured to transmit the rotation of one carrier 12 to the other carrier 12 and rotate the other carrier 18.

  As shown in FIG. 1, caps 21 and 22 are provided at the proximal end and the distal end of the head rail 11. The cap 21 provided at the base end of the head rail 11 is provided with fixing means 23 for fixing the carrier 12 on the base end side to the base end of the head rail 11. As shown in FIGS. 6 to 8, the fixing means 23 in this embodiment includes a locking member 23a whose tip is locked to the locking body 16a (FIG. 3) of the carrier 12, and the locking member 23a. And a coil spring 23b that is biased toward the base end side of the head rail 11. A base 23c is fixed to the cap 21 with a screw 23d (FIG. 8), and the locking member 23a is inserted into the base 23c so as to be movable in the longitudinal direction of the head rail 11. The coil spring 23b is interposed between the base 23c and the locking member 23a, and urges the locking member 23a to be pulled back to the cap 21 side. Therefore, the coil spring 23b functions as a carrier urging means that urges the carrier 12 at the base end of the head rail 11 locked to the locking member 23a toward the cap 21 and tensions the pair of connecting cords 18.

  Returning to FIG. 1, the cap 12 provided at the tip of the head rail 11 is fixed to the tip of the head rail 11 so that the carrier 12 at the tip of the head rail 11 can be detached while the pair of connecting cords 18 are in tension. Locking means 24 is provided. As shown in FIG. 9, the locking means in this embodiment is a fitting piece 24 fitted to the locking drum portion 16 a of the carrier 12, and the fitting piece 24 has a locking drum portion 16 a. A slit 24a which can enter is formed, and a circular hole 24b having the same shape as the outer diameter of the locking body 16a is formed in the middle of the slit 24a. The fitting piece 24 is attached to the cap 22 by a screw 24c, and a slit 24a is formed in such a manner that the locking body 16a that has entered the slit 24a reaches the circular hole 24b so as to push the slit 24a. As shown in FIGS. 10 and 11, the carrier body 16 is maintained in the circular hole 24b so that the carrier 12 is removably fixed to the tip of the head rail 11 as shown in FIGS. Composed.

Next, the operation of the vertical blind of the present invention configured as described above will be described.
First, from an open state of a blind (not shown) (a state in which all carriers 12 are brought close to the base end side of the head rail 11 on the left side in FIG. 1), the operation handle 15 is gripped and the operation handle 15 is moved. The carrier 12 at the tip end where the operation handle 15 is suspended is moved to the tip end side of the head rail 11 on the right side in FIG. Then, at the stage where the connecting cord 18 connected to the carrier 12 at the leading end is in tension, the next carrier 12 connected to the carrier 12 at the leading end via the connecting cord 18 together with the carrier 12 at the leading end in FIG. Taken to In this way, each time the connecting cord 18 is tensioned, the subsequent carriers 12 are taken one by one and start moving, and when the connecting cord 18 is fully stretched, the carrier 12 can no longer move and is stopped. As shown in FIG. 1, the plurality of carriers 12 together with the louver 17 are substantially evenly aligned over the entire length of the head rail 11 so that the blind is closed.

  Next, when the operation handle 15 is rotated with its central axis as the center of rotation, the carrier 12 at the tip of the operation handle 15 is also rotated, and the rotation of the carrier 12 is performed via a pair of tensioned connecting cords 18. It is transmitted to the other carrier 12. Accordingly, all the carriers 12 connected via the connecting cord 18 rotate in the same direction together with the carrier 12 at the tip when the carrier 12 at the tip rotates. Thus, when all the carriers 12 are rotated in the same direction in the closed state of the blinds, the plurality of louvers 17 suspended by them are also rotated around the vertical axis. Therefore, when the plurality of louvers 17 are made parallel to each other as shown in FIG. 4 and the interval between them is maximized, the amount of light collected between them can be maximized. As shown in FIG. When the distance between the 17 side edges is reduced so that the side edges of the 17 approach each other, the amount of light collected from the space can be reduced. Therefore, it is possible to adjust the dimming state relatively easily by simply rotating the operation handle 15.

  At this time, the carrier 12 at the proximal end of the head rail 11 is fixed to the proximal end of the head rail 11 by the fixing means 23, and the carrier 12 at the distal end of the head rail 11 is fixed to the distal end of the head rail 11 by the locking means 23. Therefore, each carrier 12 does not move and the tensioned state of the pair of connecting cords 18 is not released. In this embodiment, since the coil spring 23b, which is a carrier urging means for urging the carrier 12 at the base end of the head rail 12, is provided in the fixing means 23, the tension state of the pair of connecting cords 18 is always maintained. The pair of connecting cords 18 that are maintained and tension the carrier 12 at the tip can be reliably transmitted to the other carriers 12.

  Therefore, the vertical blind 10 according to the present invention does not require the opening / closing rod for opening / closing the blind and the rotating rod for rotating the louver, which are conventionally required. Therefore, there is no need for a moving mechanism that moves the carrier along the head rail by the rotation of the opening / closing rod required in the conventional carrier and a rotating mechanism that rotates the louver by the rotation of the rotating rod. Therefore, the head rail 11 and the carrier 12 in the present invention are significantly simplified as compared with the conventional one. At the same time, the carrier 12 according to the present invention that does not require the conventionally required moving mechanism and rotating mechanism has a significantly reduced number of parts, and the carrier 12 can be made relatively small. Therefore, according to the present invention, the number of parts can be reduced as compared with the prior art, so that a vertical blind that is relatively small and inexpensive can be obtained.

12 to 17 show another embodiment of the present invention. In the drawings, the same reference numerals as those in the above-described embodiment denote the same parts, and repeated description will be omitted.
As shown in FIG. 12, in the vertical blind 40 in this embodiment, a circling cord 41 that can be rotated from the outside is installed over the entire length of the head rail 11. As shown in FIGS. 13 and 14, a guide pulley 42 for turning the circling cord 41 is provided on the cap 21 at the base end (left side in FIG. 12) of the head rail 11 together with the carrier fixing means 23. A circular cord 41 is wound around the guide pulley 42 and turned, and the circular cord 41 is routed in the head rail 11 so that the pair of straight portions are arranged along the entire length in the longitudinal direction.

  On the other hand, as shown in FIG. 17, the cap 22 at the tip of the head rail 11 (right side in FIG. 12) has a pair of straight portions of the circling cord 41 arranged in the entire length of the head rail 11 in the longitudinal direction. A turning pulley 43 that turns downward is provided. Then, the circling cord 41 rotated by the turning pulley 43 is pulled out from the inside of the head rail 11 and drooped.

  Returning to FIG. 12, the loop cord 41 is formed by connecting one end and the other end of the long cord with a cord fixture 44, and the cord fixture 44 connecting the one end and the other end is provided in the head rail 11. Is provided on the carrier 12 at the tip of the carrier. The cord fixture 44 is formed with a slit 44 a in which one end and the other end of the long cord constituting the loop cord 41 are press-fitted and fixed. Then, the long cord constituting the circling cord 41 is circulated by pressing one end into the slit 44a and then drawing the other end as will be described later, and then pressing the other end returned to the cord fixture 44 into the slit 44a. Code 41 is created. That is, the other end of the long cord whose one end is press-fitted into the slit 44 a is first guided to the tip of the head rail 11, suspended from the tip by the turning pulley 43, and then turned to start again from the tip of the head rail 11. It is introduced into the interior and guided to the base end through the interior of the head rail 11. Thereafter, the head pulley 11 is rotated by the guide pulley 42 at the proximal end of the head rail 11 to return to the carrier 12 at the distal end, and then press-fitted into the slit 44 a of the cord fixture 44. As a result, one end and the other end of the long cord are connected to the carrier 12 at the tip via the cord fixing portion 44, and the loop cord 41 is made.

  As shown in FIGS. 15 to 17, a locking means 46 is provided on the cap 22 at the tip of the head rail 11. The locking means 46 is fixed to the cap 22 and located in the front end portion of the head rail 11, and the box 47 is movable in the longitudinal direction of the head rail 11 inside the box 47. And a mobile body 48 accommodated therein. A circular cord 41 is inserted into the box body 47, and a turning pulley 43 that turns the circular cord 41 from the tip of the head rail 11 and hangs down is provided in the box body 47. Further, the edge of the box body 47 facing the carrier 12 is provided with upper and lower guide plates 47a and 47b that are tapered toward the carrier 12 while sandwiching the circling cord 41 from above and below.

  The circling cord 41 is loosely inserted into the moving body 48, and in this state, is accommodated in the box body 47 so as to be movable inside the box body 47 between the turning pulley 43 and the upper and lower guide plates 47a and 47b. The movable body 48 is in contact with the circling cord 41 between the pinching roller 48a and the turning pulley 43 between the pinching roller 48a and the turning pulley 43 at the end facing the guide plates 47a and 47b. A pair of contact pins 48b and 48c are provided. When the moving body 48 moves to the turning pulley 43 side, as shown in FIG. 17, the clamping roller 48a is separated from the upper guide plate 47a to allow the circling cord 41 to move, and the moving body 48 is guided. When moved to the plates 47a and 47b, as shown in FIG. 18, the sandwiching roller 48a enters between the upper guide plate 47a and the lower guide plate 47b, and the sandwiching roller 48a is lifted by the lower guide plate 47b. The circumferential cord 41 is sandwiched together with the upper guide plate 47a, and free movement of the circumferential cord 41 is prohibited. Since one of the straight portions of the loop cord 41 in the head rail 11 is connected to the carrier 12 at the tip, if the free movement of the loop cord 41 is prohibited, the movement of the carrier 12 at the tip is also prohibited. It will be. Therefore, it can be said that the carrier locking means 46 in this embodiment is a cord fixing means for prohibiting the rotation of the rotating cord 41 in an acceptable manner.

  In the vertical blind 40 configured in this way, as shown in FIG. 17, when the nipping roller 48 a is separated from the upper guide plate 47 a and the movement of the circling cord 41 is allowed, the vertical blind 40 is suspended from the front end of the head rail 11. By holding one of the looped cords 41 and pulling it down, the looped cord 41 rotates, and the carrier 12 at the tip connected to the looped cord 41 can be moved along the head rail 11. For this reason, the rotating cord 41 is rotated through the rotating cord 41 suspended from the tip of the head rail 11 to move the carrier 12 at the tip, and all the carriers 12 are moved in the longitudinal direction of the head rail 11. The blinds can be opened and closed between the open state of the blinds collected on the base end side thereof and the closed state of the blinds that are substantially evenly aligned over the entire length of the head rail 11.

  On the other hand, in order to maintain all the carriers 12 in the closed state of the blinds that are substantially evenly aligned over the entire length of the head rail 11, the moving body 48 in the locking means 46 is moved to the guide plates 47a and 47b side, and FIG. As shown in FIG. 4, the circling cord 41 is pinched by the clamping roller 48a and the upper guide plate 47a, and the free movement of the circling cord 41 is prohibited. The moving body 48 is moved by contact resistance between the loop cord 41 and the pair of contact pins 48b and 48c. That is, when both of the circling cords 41 suspended from the tip of the head rail 11 are pulled downward, the connecting cord 18 is in a tensioned state. When the winding cord 41 is further pulled down, the coil spring 23b (FIGS. 13 and 14) in the cap 21 is compressed. When the circling cord 41 is loosened from this state, the circling cord 41 is drawn into the head rail 11 by the repulsive force of the coil spring 23b. At that time, the moving body 48 is also moved to the guide plates 47a and 47b due to the contact resistance between the circling cord 41 and the pair of contact pins 48b and 48c, and as shown in FIG. 18, the sandwiching roller 48a and the lower guide plate 47a are moved downward. It enters between the guide plates 47b, and the holding roller 48a holds the rotating cord 41 together with the upper guide plate 47a. Thus, by prohibiting the free movement of the circling cord 41, the movement of the carrier 12 at the tip is also prohibited, and the closed state of the vertical blind 40 can be maintained.

  Next, when the operation handle 15 is rotated about its center axis as the center of rotation, the carrier 12 at the tip end where the operation handle 15 is suspended rotates, and all the carriers 12 connected via the connecting cord 18 are returned to the tip end. Rotate in the same direction together with the carrier 12. Accordingly, the plurality of louvers 17 suspended from the carrier 12 can be rotated around the vertical axis in the closed state of the blind, thereby adjusting the dimming state.

  Even the vertical blind 40 having such a structure does not require the opening / closing rod for opening / closing the blind and the rotating rod for rotating the louver, which are conventionally required. For this reason, the head rail 11 and the carrier 12 in the present invention are greatly simplified as compared with the conventional one, the number of parts thereof is remarkably reduced, and the head rail 11 and the carrier 12 can be made relatively small.

It is a perspective view which shows the vertical blind of embodiment of this invention. It is sectional drawing of the head rail. It is a perspective view which shows the state which attaches a connection cord to the carrier. It is a top view which shows the carrier connected with the connection code. FIG. 5 is a top view corresponding to FIG. 4 showing a state in which the connecting cord has moved and the carrier has rotated. It is a perspective view of the cap which obstruct | occludes the base end of the head rail. It is a perspective view which shows the state by which the carrier in the base end of a head rail was fixed by the fixing means provided in the cap. It is a longitudinal cross-sectional view which shows the structure of the fixing means. It is a perspective view of the cap which obstruct | occludes the front-end | tip of the head rail. It is a perspective view which shows the state in which the carrier in the front-end | tip of a head rail was latched by the latching means provided in the cap. It is a longitudinal cross-sectional view which shows the structure of the latching means. It is a perspective view which shows another vertical blind of embodiment of this invention. It is a perspective view of the cap which obstruct | occludes the base end of the head rail. It is a longitudinal cross-sectional view of the cap. It is a perspective view which shows the wiring state of the circumference | surroundings cord in the cap which obstruct | occludes the front-end | tip of the head rail. It is a perspective view which shows the cord fixing means which is the carrier fixing means provided in the cap. It is a longitudinal cross-sectional view which shows the structure of the cord fixing means. FIG. 18 is a longitudinal sectional view corresponding to FIG. 17 showing a state in which the movement of the looping cord is prohibited by the cord fixing means.

Explanation of symbols

10, 40 Vertical blind 11 Head rail 12 Carrier 15 Operation handle 17 Louver 18 Connection cord 21, 22 Cap 23 Carrier fixing means 23b Coil spring (carrier urging means)
24 Carrier locking means 41 Circumference cord 46 Carrier locking means (code fixing means)

Claims (6)

A head rail (11), a plurality of carriers (12) slidably and rotatably inserted in the head rail (11), and suspended by the carrier (12) and moving the carrier (12) In a vertical blind comprising a louver (17) that moves and rotates with the rotation of the carrier (12),
A pair of connecting cords (18) that are tensioned when the interval between adjacent carriers (12) reaches a predetermined width are connected to the plurality of carriers (12), respectively.
Carrier fixing means (23) for fixing the carrier (12) at the base end of the head rail (11) to the base end of the head rail (11);
Carrier locking means (24, 46) for releasably fixing the carrier (12) at the tip of the head rail (11) to the tip of the head rail (11) in a state where the pair of connecting cords (18) is in tension. And
The tensioned pair of connecting cords (18) connect the plurality of carriers (12) from both sides in the width direction of the head rail (11) to rotate one carrier (12) to another carrier (12). A vertical blind configured to transmit and rotate the other carrier (12).   Caps (21, 22) for closing the proximal end and the distal end of the head rail (11) are provided at the proximal end and the distal end of the head rail (11), respectively, and carrier fixing means (23 The vertical blind according to claim 1, wherein a carrier locking means (24, 46) is provided on the cap (22) at the tip.   Carrier urging means (23b) for urging the carrier (12) at the proximal end of the head rail (11) or the carrier (12) at the distal end of the head rail (11) so that the pair of connecting cords (18) is tensioned The vertical blind according to claim 1 or 2, wherein is provided on either or both of the carrier fixing means (23) and the carrier locking means.   The vertical blind according to any one of claims 1 to 3, wherein an operation handle (15) for moving or rotating the carrier (12) is suspended from the carrier (12) at the tip of the head rail (11). A looping cord (41) that can be rotated from the outside is installed over the entire length of the head rail (11),
One of the straight portions of the loop cord (41) in the head rail (11) is connected to the carrier (12) at the tip, and the carrier (12) at the tip is movable by the rotation of the loop cord (41). The vertical blind according to any one of claims 1 to 4, which is configured.   The vertical blind according to claim 5, wherein the carrier locking means (46) is a cord fixing means for prohibiting the rotation of the circling cord (41).

Images