JP2021102851A - Vertical blind - Google Patents

Abstract

To provide a vertical blind which does not block rotation of a louver.SOLUTION: A blind 10 comprises: a plurality of carriers which can move along a longitudinal direction of a head rail Bh; a first louver 1Lv and a second louver 2Lv which are suspended in rotatable and openable/closable manners from the carriers; and a third baton 3Bt for operating the opening/closing of the first louver 1Lv and the second louver 2Lv. The blind 10 further comprises an offset lever 3 which is linked to a suspension shaft 91s being arranged in a movable manner in a same direction of the carriers and extending in a vertical direction and suspends the third baton 3Bt. The third baton 3Bt can move in a front-rear direction of the head rail Bh with rotation of the louvers and the rotation of the suspension shaft 91s and the offset lever 3. The synchronous rotation of the louvers and the offset lever 3 does not block the rotation of the louvers.SELECTED DRAWING: Figure 1

Description

The present invention relates to vertical blinds. In particular, the present invention relates to the structure of a vertical blind in which a plurality of strip-shaped louvers are suspended in the vertical direction.

For example, in a vertical blind with two groups of left and right louvers suspended from a head rail, the baton is suspended between the first adjacent louver and the next louver that follows, and the baton is operated. By doing so, a vertical blind that can open and close two groups of left and right louver rows along the head rail is disclosed (see, for example, Patent Document 1).

Jikken Sho 63-21678 Gazette

In the vertical blind according to Patent Document 1, the baton is located between the first louver and the next louver, so that the baton is exposed to the front when a plurality of louvers are closed so that their ends overlap each other. It has the feature that it can be hidden behind multiple louvers without letting it.

However, in the vertical blind according to Patent Document 1, when a plurality of louvers are closed so that their ends overlap each other, the louvers come into contact with the baton and the rotation of the louvers is hindered, which affects the shielding property of the louvers. There was a problem of giving.

A vertical blind that can open and close a plurality of louvers along a head rail and does not hinder the rotation of the louvers when the ends of the plurality of louvers are closed so as to overlap each other is required. The above can be said to be the subject of the present invention.

The present invention has been made in view of such a problem, and an object of the present invention is to provide a vertical blind that does not hinder the rotation of louvers when the ends of a plurality of louvers are closed so as to overlap each other. To do.

The present inventor considers that the baton that can move along the head rail is configured to be movable in the front-rear direction of the head rail in conjunction with the rotation of the louver, and thus does not hinder the rotation of the louver. , Invented the following new vertical blinds.

(1) The vertical blind according to the present invention includes a plurality of carriers that can move along the longitudinal direction of the head rail, louvers that are hung from these carriers so as to be rotatable and openable, and for opening and closing these louvers. The operating member includes a rotating member that is movably arranged in the same direction as the carrier and is fixed to a hanging shaft that extends in the vertical direction and suspends the operating member. The operating member is a rotation of the louver. At the same time, the hanging shaft and the rotating member rotate to make the operating member movable in the front-rear direction of the head rail.

(2) The head rail can move along its longitudinal direction, has a drive member that rotatably supports the hanging shaft, and the rotating member is pivotally supported by the hanging shaft. It is preferable to have a shaft portion, a horizontal portion extending in the horizontal direction from the shaft portion, and a hanging portion capable of suspending the operating member in the vicinity of the tip of the horizontal portion.

(3) It is preferable that the hanging shaft can rotate in conjunction with the rotation of the rotating shaft that rotates the louver.

(4) It is preferable that the driving member is integrally formed with one of the carriers or is detachably connected to the one carrier.

(5) It is preferable that the hanging portion of the rotating member is arranged behind the axis of the carrier.

The vertical blind according to the present invention is arranged so as to be movable in the same direction as the carrier and the operating member for opening and closing the louver, is fixed to a hanging shaft extending in the vertical direction, and the operating member is suspended and rotated. The member is provided, and the hanging shaft and the rotating member rotate with the rotation of the louver, so that the operating member can be moved in the front-rear direction of the head rail, so that the operating member does not hinder the rotation of the louver.

It is a figure which shows the whole structure of the vertical blind by one Embodiment of this invention, FIG. 1A is a front view of a vertical blind, and FIG. 1B is a bottom view of a vertical blind. It is a state diagram in which the louver of is expanded. It is a figure which shows the whole structure of the vertical blind by the said embodiment, FIG. 2A is a front view of a vertical blind, FIG. 2B is a bottom view of a vertical blind, and a plurality of louvers are formed. It is a fully closed state diagram. FIG. 3A is an enlarged view of the central portion of the vertical blind according to the above embodiment, FIG. 3A is a front view of the central portion of the vertical blind, and FIG. 3B is a bottom view of the central portion of the vertical blind. It is a state diagram in which a plurality of louvers are expanded. It is a perspective view which shows the structure of the drive member and the rotating member provided in the vertical blind by the said embodiment, and FIG. 4A is a state diagram which saw the drive member and the rotating member from below, FIG. 4B. Is a perspective exploded assembly view of the driving member and the rotating member as viewed from below. It is sectional drawing which shows the structure of the vertical blind by the said embodiment, FIG. 5A is a sectional view taken along the line AA of FIG. 3A, and FIG. 5B is FIG. 5A. It is a cross-sectional view taken along the line BB. It is the enlarged bottom view of the central part of the vertical blind by the said embodiment, and is the state figure rotated in the direction which a plurality of louvers are closed. FIG. 7A is an enlarged view of the central portion of the vertical blind according to the above embodiment, FIG. 7A is a front view of the central portion of the vertical blind, and FIG. 7B is a bottom view of the central portion of the vertical blind. It is a state diagram in which a plurality of louvers are fully closed. 8A is a front view of the vertical blind, FIG. 8B is a bottom view of the vertical blind, and a plurality of louvers are provided. It is a state diagram folded to the left and right.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

[Vertical blind configuration]
First, the overall configuration of the vertical blind according to the embodiment of the present invention will be described.

(overall structure)
Referring to FIGS. 1 to 8, the vertical blind (hereinafter referred to as a blind) 10 according to an embodiment of the present invention includes a C-shaped channel-shaped head rail Bh and a plurality of carriers. The head rail Bh can be attached to the upper part of the window frame or the ceiling surface via a plurality of brackets Br.

Further, referring to FIGS. 1 to 8, the blind 10 includes a first louver 1Lv and a second louver 2Lv, and a drive cord 921 as an opening / closing member. The first louver 1Lv and the second louver 2Lv are suspended from a plurality of carriers. The first louver 1Lv and the second louver 2Lv are the same, but for convenience of explanation, they are distinguished by changing their reference numerals.

Referring to FIGS. 1 to 8, the drive cord 921 is connected to the carrier and is arranged endlessly along the head rail Bh without hanging from the head rail Bh.

Referring to FIGS. 1 to 8, the plurality of carriers include a first master carrier 91 m and a second master carrier 92 m. Further, the plurality of carriers include a plurality of first carriers 91c and a plurality of second carriers 92c.

Referring to FIGS. 1 to 8, the first master carrier 91m and the second master carrier 92m are arranged adjacent to each other in the central portion of the head rail Bh. Further, the first master carrier 91m and the second master carrier 92m are connected to the drive cord 921.

Referring to FIGS. 1 to 8, the plurality of first carriers 91c are arranged between the central portion of the head rail Bh and one end portion of the head rail Bh. More specifically, the plurality of first carriers 91c are arranged between the first master carrier 91m and one end of the head rail Bh.

Similarly, referring to FIGS. 1 to 8, the plurality of second carriers 92c are arranged between the central portion of the head rail Bh and the other end portion of the head rail Bh. More specifically, the plurality of second carriers 92c are arranged between the second master carrier 92m and the other end of the head rail Bh.

Referring to FIGS. 1 to 8, the first master carrier 91m includes a driving member (hereinafter, referred to as a slider) 2. The slider 2 can move a plurality of first carriers 91c arranged on one side of the head rail Bh.

Referring to FIG. 1 or FIGS. 2 and 8, the first master carrier 91m and the second master carrier 92m, the first carrier 91c and the second carrier 92c, and the slider 2 move in the longitudinal direction inside the head rail Bh. Arranged as possible.

The longitudinal direction of the head rail Bh is the direction in which the head rail Bh extends. Further, hereinafter, the direction orthogonal to the longitudinal direction and the horizontal direction is the front-rear direction, and the side that becomes the indoor Ri side (see FIG. 3B or FIG. 6) when the blind 10 is attached in front of the window in the room is the front side. The outdoor Ro side (see FIG. 3B or FIG. 6), which is the window side, will be described as the rear side.

When the slider 2 is operated with reference to FIGS. 1 to 8 and the first master carrier 91m moves along the head rail Bh in a direction away from the second master carrier 92m, the first master carrier 91m is relative to the first master carrier 91m. , The second master carrier 92m moves in the opposite direction (direction of separation) (see FIG. 8).

On the other hand, referring to FIGS. 1 to 8, when the slider 2 is operated and the first master carrier 91m moves along the head rail Bh in the direction approaching the second master carrier 92m, the first master carrier 91m and the first master carrier 91m are obtained. 2 From the state where the master carrier 92m is separated, the second master carrier 92m moves in the opposite direction (approaching direction) with respect to the first master carrier 91m (see FIG. 1 or FIG. 2).

As described above, referring to FIGS. 1 to 8, when the slider 2 is operated and the first master carrier 91m moves along the head rail Bh, the second master carrier 92m is moved with respect to the first master carrier 91m. Can move in the opposite direction.

The blind 10 according to the embodiment is connected to and connected to a plurality of carriers that can move along the longitudinal direction of the head rail Bh, the first louver 1Lv and the second louver 2Lv suspended from these carriers, and the head rail. One carrier provided with a drive cord 921 that is arranged endlessly along the head rail Bh without hanging from the Bh, one carrier and the other carrier are connected by the drive cord 921, and the slider 2 is provided. By moving, the left and right first louvers 1Lv and second louvers 2Lv can be opened and closed at the same time, which is excellent in operability.

(Louver configuration)
Next, the configurations of the first louver 1Lv and the second louver 2Lv according to the embodiment will be described. Referring to FIGS. 1 to 3, the first carrier 91c suspends the first louver 1Lv via the carrier hook 91f (see FIG. 3A). Similarly, the second master carrier 92m and the second carrier 92c suspend the second louver 2Lv via the carrier hook 92f (see FIG. 3A).

Although the carrier hook 91f and the carrier hook 92f are the same, they are distinguished by changing their reference numerals for convenience of explanation. Further, the first louver 1Lv and the second louver 2Lv form a weight cover Lw for accommodating weights by folding back their lower ends (see FIG. 2A).

(Drive shaft configuration)
Referring to FIGS. 1 to 8, the blind 10 has a tilt shaft Sa, which is a long drive shaft, arranged inside the head rail Bh. The tilt axis Sa is arranged along the longitudinal direction of the head rail Bh.

Referring to FIGS. 1 to 8, one end of the tilt shaft Sa is rotatably supported inside one end cap 1Ec of the head rail Bh. The other end of the tilt shaft Sa is rotatably supported by the other end cap 2Ec of the head rail Bh. Further, the central portion of the tilt shaft Sa is rotatably supported by the rod support Sr (see FIG. 8).

Referring to FIGS. 1 to 8, the first master carrier 91m and the second master carrier 92m, the first carrier 91c and the second carrier 92c, and the slider 2 can move along the tilt axis Sa.

(Structure of operating member)
Next, the configuration of the operating member provided in the blind 10 according to the embodiment will be described. With reference to FIG. 1 (A) or FIG. 2 (A) and FIG. 4 or FIG. 8 (A), the operating members are a rod-shaped first baton 1Bt, a rod-shaped second baton 2Bt, and a rod-shaped third baton 3Bt. Includes. The first baton 1Bt is arranged at one end of the blind 10. The second baton 2Bt is located at the other end of the blind 10. The third baton 3Bt is arranged in the central portion of the blind 10 (see FIG. 1 (A)). The first baton 1Bt to the third baton 3Bt are the same, but for convenience of explanation, they are distinguished by changing the reference numerals.

Further, referring to FIG. 1 (A) or FIG. 2 (A) and FIG. 4 or FIG. 8 (A), the third baton 3Bt corresponds to the "operating member of the present invention" for opening and closing the louver. There is. The first baton 1Bt and the second baton 2Bt correspond to "operating members" for rotating the tilt axis Sa.

(Composition of the first baton)
Referring to FIG. 1 (A) or FIG. 2 (A) and FIG. 8 (A), the blind 10 has a first operating unit 91u attached to one end of the head rail Bh. The first operating unit 91u projects the annular first engaging portion 1Bj from the bottom (see FIG. 1 (A)). On the other hand, in the first baton 1Bt, a hook F with a lock lever is fixed to the tip portion (see FIG. 1 (A)). By introducing the hook F of the first baton 1Bt into the inside of the first engaging portion 1Bj, the first baton 1Bt can be suspended so as to be difficult to separate from the first operation unit 91u.

With reference to FIG. 1 (A) or FIG. 2 (A) and FIG. 8 (A), the base end portion of the first engaging portion 1Bj is inside the first operating unit 91u, and a pair of umbrellas with the tilt shaft Sa. They are connected via gears (not shown). By rotating the first baton 1Bt around its axis, the rotation of the first baton 1Bt can be transmitted to the tilt axis Sa.

(Composition of the second baton)
Referring to FIG. 1 (A) or FIG. 2 (A) and FIG. 8 (A), the blind 10 has a second operating unit 92u attached to the other end of the head rail Bh. The second operating unit 92u projects the annular second engaging portion 2Bj from the bottom (see FIG. 1 (A)). On the other hand, in the second baton 2Bt, a hook F with a lock lever is fixed to the tip portion (see FIG. 1 (A)). By introducing the hook F of the second baton 2Bt into the inside of the second engaging portion 2Bj, the second baton 2Bt can be hung so as to be difficult to separate from the second operation unit 92u.

With reference to FIG. 1 (A) or FIG. 2 (A) and FIG. 8 (A), the base end portion of the second engaging portion 2Bj is inside the second operating unit 92u and is a pair of umbrellas with the tilt shaft Sa. They are connected via gears (not shown). By rotating the second baton 2Bt around its axis, the rotation of the second baton 2Bt can be transmitted to the tilt axis Sa.

In addition, referring to FIG. 1A or FIG. 2A and FIG. 8A, the rotation of the first baton 1Bt is transmitted to the second baton 2Bt via the tilt axis Sa, and is transmitted to the second baton 2Bt. Is transmitted to the first baton 1Bt via the tilt axis Sa. By rotating either the first baton 1Bt or the second baton 2Bt, the tilt axis Sa can be rotated around that axis.

(Structure of the third baton)
Referring to FIG. 4, the third baton 3Bt has a hook F with a lock lever fixed to the tip portion. By introducing the hook F of the third baton 3Bt into the hole opened at the tip of the offset lever 3 which is a rotating member described later, the third baton 3Bt can be hung without difficulty in detaching from the slider 2. ..

With reference to FIG. 1, the first louver 1Lv and the second louver 2Lv can be folded to the left and right by grasping the third baton 3Bt and moving the slider 2 toward one end of the blind 10. (See FIG. 8). On the other hand, from the state shown in FIG. 8, the first louver 1Lv and the second louver 2Lv can be deployed by grasping the third baton 3Bt and moving the slider 2 toward the central portion of the blind 10. (See FIG. 1). In this way, the third baton 3Bt can be opened and closed to the left and right in conjunction with the plurality of first louvers 1Lv and the second louver 2Lv.

Further, referring to FIG. 1A, one of the first baton 1Bt and the second baton 2Bt is operated to expand the plurality of first louvers 1Lv and second louver 2Lv (FIG. 1 (FIG. 1). A)), by rotating the plurality of first louvers 1Lv and second louver 2Lv clockwise when viewed from the lower surface side (see FIG. 7B), the first louver 1Lv and the second louver 2Lv are all. It can be changed to the closed state (see FIG. 2 (A) or FIG. 7 (A)).

On the other hand, referring to FIG. 2A, one of the first baton 1Bt and the second baton 2Bt is operated, and the plurality of first louvers 1Lv and the second louver 2Lv are fully closed (FIG. 2). (See (A)), by rotating the plurality of first louvers 1Lv and second louver 2Lv counterclockwise when viewed from the lower surface side (see FIG. 7B), the first louver 1Lv and the second louver 2Lv Can be changed to the expanded state (see FIG. 1 (A) or FIG. 3 (A)).

(Career composition)
(Structure of 1st master carrier)
Next, the configuration of the first master carrier 91 m will be described. Since the configurations of the first master carrier 91m and the second master carrier 92m and the first carrier 91c and the second carrier 92c are substantially the same, the configuration of the carrier will be described below on behalf of the first master carrier 91m. I have something to do.

Referring to FIG. 4 or FIG. 5 (A), the tilt axis Sa has a plurality of spline grooves extending in the axial direction formed on the outer periphery thereof. The first master carrier 91m is provided with a rotational force transmission mechanism inside. By driving the rotational force transmission mechanism, the first louver 1Lv and the second louver 2Lv can be rotated forward or reversed around the vertical axis.

Referring to FIG. 5A, the rotational transmission mechanism includes a worm W, a worm wheel Wh, and a transmission sleeve Sf. The inner circumference of the worm W is slidably connected to the tilt axis Sa. Further, the inner circumference of the worm W meshes with the outer circumference of the tilt shaft Sa.

With reference to FIG. 5A, the worm wheel Wh meshes with the worm W. The worm wheel Wh can convert the rotation of the worm W around the horizontal axis into the rotation around the vertical axis. In this way, the worm W and the worm wheel Wh form a "worm gear" in which the extending directions of the set of gear shafts are different from each other.

With reference to FIG. 5A, the transmission sleeve Sf can transmit the rotation of the worm wheel Wh to the suspension shaft 91s, which will be described later. The transmission sleeve Sf is fitted between the shaft portion of the hanging shaft 91s and the inner circumference of the shaft portion of the worm wheel Wh. When the worm wheel Wh is rotated around the axis, the transmission sleeve Sf can transmit the rotation of the worm wheel Wh to the suspension shaft 91s so as to be frictionally transmitted.

Referring to FIG. 5A, the first master carrier 91m is guided by the tilt axis Sa and is allowed to move in the axial direction of the tilt axis Sa, but the rotation of the hanging shaft 91s around the axis tilts. It is configured so that it is not transmitted to the axis Sa.

(Career composition excluding the 1st master carrier)
Next, the configurations of the second master carrier 92m, the first carrier 91c, and the second carrier 92c, excluding the first master carrier 91m, will be described.

Referring to FIG. 5, the carriers other than the first master carrier 91m have a worm W, a worm wheel Wh, and a transmission sleeve Sf inside. In these carriers, the transmission sleeve Sf is a carrier hook 91f ( Alternatively, the carrier hook 92f) is connected to a rotating shaft (not shown) having a lower end portion so as to be frictionally transmitted.

When the baton of either the first baton 1Bt or the second baton 2Bt is rotated with reference to FIG. 1 or FIG. 2 and FIG. 8, the path of the tilt axis Sa → worm W → worm wheel Wh → transmission sleeve Sf is taken. Then, the rotation of either the first baton 1Bt or the second baton 2Bt around the axis can be transmitted to the carrier hook 91f (or carrier hook 92f). On the other hand, when the rotation of the carrier hook 91f (or carrier hook 92f) around the axis is restricted, the friction transmission of the transmission sleeve Sf does not work, and the carrier hook 91f (or carrier hook 92f) is wormed against the shaft portion. The shaft portion of the wheel Wh is configured to idle. As a result, the rotation range of the carrier hook 91f (or carrier hook 92f) is limited to a range of about 180 degrees in the forward and reverse directions.

Referring to FIG. 1 or FIGS. 2 and 8, carriers other than the first master carrier 91m are guided by the tilt axis Sa and are allowed to move in the horizontal direction, but the carrier hook 91f (or carrier hook 92f). The rotation around the axis is not transmitted to the tilt axis Sa.

Further, referring to FIG. 3 or FIG. 4 (B), the carriers other than the first master carrier 91 m rotatably support a pair of rollers (not shown) at both ends. The pair of rollers are mounted on a pair of guide rails (not shown) arranged to face the inner wall of the head rail Bh. The rollers can roll on the guide rails. In addition, referring to FIG. 4, the first carrier 91m adjacent to the first master carrier 91m and the first master carrier 91m is not provided with a pair of rollers, but holds the first master carrier 91m and the first carrier 91c. The slider 2 forms a step on both side surfaces on which a pair of guide rails (not shown) can be slid.

Further, referring to FIG. 5A, the first master carrier 91m has a pair of holes through which the looped drive cord 921 can be inserted, which are opened below them. Further, the first carrier 91c and the second carrier 92c have a pair of holes through which the looped drive cord 921 can be inserted, which are opened below them. The second master carrier 92m has one hole through which one of the looped drive cords 921 can be inserted at the bottom, but the other hole opened at the bottom of the second master carrier 92m has a looped drive cord. The other side of 921 forms a second connecting portion 92j (see FIG. 3B).

Referring to FIG. 3B or FIG. 6, the blind 10 arranges a carrier moving mechanism for moving the plurality of first carriers 91c and the second carrier 92c inside the head rail Bh. The carrier moving mechanism includes a plurality of flexible first spacer links 1Ls and second spacer links 2Ls, which will be described later.

(Structure of the first spacer link)
Next, the configuration of the first spacer link 1Ls according to the embodiment will be described. With reference to FIG. 3B or FIG. 6, the first master carrier 91m and the plurality of first carriers 91c are connected to each other by a strip-shaped first spacer link 1Ls.

With reference to FIG. 3B or FIG. 6, the plurality of first carriers 91c can be pulled in one direction by the first master carrier 91m via the first spacer link 1Ls and can move to the deployment side (FIG. 3). 1), the first master carrier 91m is pushed in the direction opposite to the towing direction and can move to the convolution side (see FIG. 8).

With reference to FIG. 4B or FIG. 5A, the first spacer link 1Ls is slidably fixed to the upper portion of the first master carrier 91m and the upper portion of the first carrier 91c in the longitudinal direction. Forming a fixing groove. Further, in this fixing groove, claws that can slide the first spacer link 1Ls in the longitudinal direction and regulate the movement in the vertical direction are formed at different positions in the front-rear direction. The first spacer links 1Ls connect the first carriers 91c arranged adjacent to each other, or the first master carrier 91m and the first carrier 91c adjacent thereto. One of the fixed ends of the first spacer link 1Ls was fixed to the fixing groove of the first carrier 91c on the convolution side, and the other free end was fixed to the fixing groove of the first master carrier 91m or the first carrier 91c. It is slidably fitted so as to overlap the upper side of the fixed end of the adjacent first spacer links 1Ls. According to such a first spacer link 1Ls, the separation distance between adjacent carriers can be changed with the length of the first spacer link 1Ls as the maximum distance.

(Structure of second spacer link)
Next, the configuration of the first spacer link 1Ls according to the embodiment will be described. With reference to FIG. 3B or FIG. 6, the second master carrier 92m and the plurality of second carriers 92c are connected to each other by a strip-shaped second spacer link 2Ls.

The plurality of second carriers 92c can be pulled in one direction by the second master carrier 92m via the second spacer link 2Ls and can move to the deployment side (see FIG. 1), and the pulling direction of the second master carrier 92m. It can be pushed in the opposite direction to move to the convolution side (see FIG. 8).

A fixing groove (not shown) for slidably fixing the second spacer link 2Ls in the longitudinal direction is formed in the upper portion of the second master carrier 92m and the upper portion of the second carrier 92c. Further, in this fixing groove, claws that can slide the second spacer link 2Ls in the longitudinal direction and regulate the movement in the vertical direction are formed at different positions in the front-rear direction. The second spacer link 2Ls connects the second carriers 92c arranged adjacent to each other, or the second master carrier 92m and the second carrier 92c adjacent thereto. One of the fixed ends of the second spacer link 2Ls was fixed to the fixing groove of the second carrier 92c on the convolution side, and the other free end was fixed to the fixing groove of the second master carrier 92m or the second carrier 92c. It is slidably fitted so as to overlap the upper side of the fixed end of the adjacent first spacer links 1Ls. According to such a second spacer link 2Ls, the separation distance between adjacent carriers can be changed with the length of the second spacer link 2Ls as the maximum distance.

(Structure of opening / closing member)
Next, the configuration of the drive cord 921 according to the embodiment will be described. The drive cord 921 is preferably made of a flexible string, rope or belt. With reference to FIGS. 1 (B) or 3 (B) and FIG. 6, the drive cord 921 extends along the longitudinal direction of the head rail Bh to the front side of the head rail Bh, and the longitudinal direction of the head rail Bh. Along the line, a portion extending to the rear side of the head rail Bh is looped. Hereinafter, the front side (indoor side) of the drive cord 921 may be referred to as "the other end of the drive cord 921", and the rear side (outdoor side) of the drive cord 921 may be referred to as "one end of the drive cord 921".

With reference to FIGS. 1 (B) or 3 (B) and FIG. 6, the other end (front side) of the drive cord 921 is arranged on the front side in the front-rear direction inside the head rail Bh. The other end of the drive cord 921 is inserted with the first carrier 91c and the second carrier 92c, respectively. Further, the first master carrier 91m and the second master carrier 92m are inserted through the front side of the drive cord 921 (see FIG. 5B).

With reference to FIGS. 1 (B) or 3 (B) and FIG. 6, one end (rear side) of the drive cord 921 is arranged on the rear side of the inside of the head rail Bh in the front-rear direction. The rear side of the drive cord 921 is inserted with the first carrier 91c and the second carrier 92c, respectively. Further, although the first master carrier 91m is inserted through the rear side of the drive cord 921, a second connecting portion 92j in which the second master carrier 92m is moored is formed in the intermediate portion (FIG. 3 (B)). reference).

Referring to FIG. 1B, the rear side of the drive cord 921 is wound on a guide formed in a semicircle on one end cap 1Ec on one end side thereof, and reaches the front side of the drive cord 921. The front side of the drive cord 921 is wound around a guide whose other end side is formed in a semicircle around the other end cap 2Ec, and reaches the rear side of the drive cord 921.

Referring to FIG. 6, the front side of the drive cord 921 is disconnected, but both of these terminals are moored to the slider 2. One terminal of the drive cord 921 is moored to a second connected portion 92i in a fitting groove formed on the bottom surface of the slider 2. The other terminal of the drive cord 921 is moored to the second connected portion in the fitting groove formed on the bottom surface of the slider 2. One terminal of the drive cord 921 and the other terminal form a first connecting portion 91j in which the first master carrier 91m is moored via the slider 2 (see FIG. 3B).

Referring to FIG. 6, the drive cord 921 is substantially continuous by mooring one terminal and the other terminal to the slider 2. Further, in the state shown in FIG. 1B or FIG. 6, the looped drive cord 921 is formed in a semicircular shape on one end cap 1Ec and a semicircular shape on the other end cap 2Ec. It is stretched with a guide and maintains a tense state without hanging from the head rail Bh.

With reference to FIG. 1, when the third baton 3Bt is operated to move the slider 2 toward one end side of the head rail Bh, the front side of the drive cord 921 moves toward one end side of the head rail Bh. it can. When the rear side of the drive cord 921 is moved toward one end side of the head rail Bh, the front side of the drive cord 921 is rotated by a guide, so that the second master carrier 92m moored on the rear side of the drive cord 921. Can be moved in the direction opposite to the direction in which the first master carrier 91m moves. As a result, the left and right first louvers 1Lv and second louvers 2Lv can be convoluted at the same time (see FIG. 8).

On the other hand, when the slider 2 is moved toward the central portion of the head rail Bh by operating the third baton 3Bt from the state shown in FIG. 8, the front side of the drive cord 921 is directed toward the central portion of the head rail Bh. You can move. When the front side of the drive cord 921 is moved toward the central portion of the head rail Bh, the rear side of the drive cord 921 is rotated by a guide, so that the second master carrier 92 m moored on the rear side of the drive cord 921 is moved. , The first master carrier 91m can move in the direction opposite to the moving direction. As a result, the left and right first louvers 1Lv and second louvers 2Lv can be expanded at the same time (see FIG. 1).

Referring to FIG. 6, one terminal of the drive cord 921 forms a knot. Also, the other terminal of the drive cord 921 forms a knot. The other knot of the drive cord 921 is moored to the second connected portion in the fitting groove formed on the bottom surface of the slider 2. On the other hand, one knot of the drive cord 921 can be released from the fitting groove formed on the bottom surface of the slider 2. As a result, the overall length of the drive cord 921 can be increased, and the drive cord 921 can be changed from the tension state to the relaxed state.

With reference to FIG. 6, by shifting the drive cord 921 from the tensioned state to the relaxed state, the lock arm 1Ea of the one end cap 1Ec holding the base end portion of the first engaging portion 1Bj is changed to the first engaging portion. It can be removed from 1Bj (see FIG. 1B). In the process of shifting the drive cord 921 from the tensioned state to the relaxed state, one knot of the drive cord 921 is moored to the first connected portion 91i in the fitting groove formed on the bottom surface of the slider 2 (FIG. 3 (FIG. 3). B) See).

With reference to FIG. 6, the drive cord 921 can be incorporated into the head rail Bh by shifting the drive cord 921 from the tension state to the relaxed state or by shifting the drive cord 921 from the relaxed state to the tension state. it can. Referring to FIG. 4A, the slider 2 has a switching mechanism 1Mc at the bottom, which can switch the mooring position of the knot formed on the terminal of the drive cord 921. The switching mechanism 1Mc can shift the drive cord 921 from the tension state to the relaxed state, or shift the drive cord 921 from the relaxed state to the tension state.

(Structure of rotating member)
Next, the configuration of the offset lever 3 serving as the rotating member will be described. Referring to FIGS. 1 to 8, the offset lever 3 suspends the third baton 3Bt. The offset lever 3 has a shaft portion 3b, which is a base end portion thereof, fixed coaxially with the suspension shaft 91s (see FIG. 4 or FIG. 5 (A)). As a matter of fact, the hanging shaft 91s is rotatably supported by the first master carrier 91m (see FIG. 5A). The hanging shaft 91s is arranged so as to be movable in the same direction as the plurality of carriers. Further, the hanging shaft 91s extends in the vertical direction.

With reference to FIG. 4, the first master carrier 91m can be detachably connected to the slider 2. When the first master carrier 91m is connected to the slider 2, the first master carrier 91m and the slider 2 can be integrally moved along the longitudinal direction of the head rail Bh. The first master carrier 91m and the slider 2 may be integrally configured without being detachably connected to each other.

Referring to FIG. 4 or FIG. 5A, the offset lever 3 has a shaft portion 3b serving as a base end portion, a horizontal portion 3a, and a third engaging portion 3Bj serving as a hanging portion. The shaft portion 3b is pivotally supported by the hanging shaft 91s. The horizontal portion 3a extends in the horizontal direction from the shaft portion 3b. The third engaging portion 3Bj can suspend the third baton 3Bt in the vicinity of the tip of the horizontal portion 3a. By rotating the tilt shaft Sa around the shaft, the hanging shaft 91s and the offset lever 3 can be rotated integrally.

Further, referring to FIG. 4 or FIG. 5 (A), the third engaging portion 3Bj of the offset lever 3 has a plurality of carriers in the unfolded state of the first louver 1Lv and the second louver 2L (see FIG. 1). It is arranged behind the axis (outdoor Ro side) (see FIG. 3 (B) or FIG. 6).

Referring to FIG. 4, the slider 2 holds one first carrier 91c at a predetermined distance from the first master carrier 91m. The first carrier 91c rotatably holds a rotation shaft (not shown) having a carrier hook 91f at the lower end. Further, the hanging shaft 91s (see FIG. 5B) is arranged at a position offset in the axial direction from the carrier hook 91f held by the slider 2.

With reference to FIGS. 3 to 5, the plurality of carriers are provided with a rotational force transmission mechanism inside, and by rotating the tilt shaft Sa around the axis, the suspension shaft 91s and the rotation shaft held inside the carrier are held. (Not shown) can be rotated in conjunction with each other. That is, the hanging shaft 91s can rotate in conjunction with the rotation of the rotating shaft that rotates the first louver 1Lv and the second louver 2Lv.

[Action of vertical blinds]
Next, the operation and effect of the blind 10 will be described while explaining the operation of the blind 10 according to the embodiment.

With reference to FIG. 1 or 3, in the state where the first louver 1Lv and the second louver 2Lv are expanded, the first louver 1Lv and the second louver 2Lv are arranged substantially in parallel. Further, the offset lever 3 is arranged between the adjacent first louver 1Lv and the second louver 2Lv, and is arranged substantially parallel to the first louver 1Lv and the second louver 2Lv.

When the baton of either the first baton 1Bt or the second baton 2Bt is rotated from the state shown in FIG. 1 or 3, the rotation of the tilt shaft Sa is held inside the hanging shaft 91s and the carrier. The offset lever 3 and the first louver 1Lv and the second louver 2Lv can be rotated in conjunction with each other by being transmitted to (not shown) (see FIG. 6).

When the baton of either the first baton 1Bt or the second baton 2Bt is further rotated from the state shown in FIG. 6, the ends of the first louver 1Lv and the second louver 2Lv overlap each other, and the first louver 1Lv And the second louver 2Lv can be fully closed (see FIG. 7).

On the other hand, in the process of shifting from the state shown in FIG. 6 to the state shown in FIG. 7, the third baton 3Bt suspended from the offset lever 3 is behind the axes of the first louver 1Lv and the second louver 2Lv. On the side, the head rail Bh is moving (rotating) in the forward direction.

In the process of transitioning from the state shown in FIG. 6 to the state shown in FIG. 7, the third baton 3Bt is viewed from the indoor Ri side without interfering with the movements of the first louver 1Lv and the second louver 2Lv. The third baton 3Bt can be covered with the first louver 1Lv and the second louver 2Lv (see FIG. 2A or FIG. 7A).

In the process of returning from the state shown in FIG. 7 to the state shown in FIG. 3, the third baton 3Bt suspended from the offset lever 3 is located behind the axis of the first louver 1Lv and the second louver 2Lv. , The head rail Bh can be moved (rotated) in the rear direction.

In the process of returning from the state shown in FIG. 7 to the state shown in FIG. 3, the third baton 3Bt does not interfere with the movements of the first louver 1Lv and the second louver 2Lv, and the first louver 1Lv and the second louver 1Lv. It can be placed between the louvers 2Lv (see FIG. 1 (A)).

In this way, the blind 10 according to the embodiment is interlocked with the third baton 3Bt for opening and closing the louver and the hanging shaft 91s arranged so as to be movable in the same direction as the carrier, and suspends the third baton 3Bt. The offset lever 3 is provided, and the offset lever 3 can be moved (rotated) in the front-rear direction of the head rail by rotating the offset lever 3 with the rotation of the louver, so that the offset lever 3 hinders the rotation of the louver. It has the effect of not doing so.

Further, referring to FIG. 4 or FIG. 5A, the blind 10 according to the embodiment includes a shaft portion 3b pivotally supported by the hanging shaft 91s, a horizontal portion 3a extending in the horizontal direction from the shaft portion 3b, and a horizontal portion. In the vicinity of the tip of the portion 3a, the offset lever 3 is composed of a third engaging portion 3Bj capable of suspending the third baton 3Bt. As a result, by rotating the shaft portion 3b, the third engaging portion 3Bj can be rotated, and the third baton 3Bt can be moved back and forth of the head rail Bh.

Further, the blind 10 according to the embodiment rotates the offset lever 3 in conjunction with the rotation of the rotating shaft that rotates the first louver 1Lv and the second louver 2Lv, thereby rotating the first louver 1Lv and the second louver 2Lv. The offset lever 3 can be reliably rotated without contacting the louver.

Further, in the blind 10 according to the embodiment, the slider 2 is integrated with or connected to the first master carrier 91m, and the third baton 3Bt connected to the offset lever 3 is operated to operate the first louver 1Lv and the second. The louver 2Lv can be linked to open and close left and right.

Further, in the blind 10 according to the embodiment, the third baton 3Bt material is placed in the first louver by arranging the third engaging portion 3Bj of the offset lever 3 behind the axial centers of the plurality of carriers (outdoor Ro side). It can be hidden behind the 1Lv and the 2nd louver 2Lv, and the design can be improved.

1Lv 1st louver 2 slider (driving member)
2Lv 2nd louver 3 Offset lever (rotating member)
3Bt 3rd baton (operation member)
10 blinds (vertical blinds)
91c 1st carrier 91s Suspended shaft 92c 2nd carrier 91m 1st master carrier (carrier)
92m 2nd master carrier (carrier)
Bh head rail

Claims (5)

With multiple carriers that can move along the longitudinal direction of the headrail,
With louvers that can be rotated and opened and closed from these carriers,
An operating member for opening and closing these louvers, and
It is provided with a rotating member that is movably arranged in the same direction as the carrier and is interlocked with a hanging shaft extending in the vertical direction to suspend the operating member.
The operating member is a vertical blind that allows the operating member to move in the front-rear direction of the head rail by rotating the hanging shaft and the rotating member with the rotation of the louver. The head rail has a drive member that can move along the longitudinal direction thereof and rotatably supports the suspension shaft.
The rotating member
A shaft portion that is pivotally supported by the hanging shaft and
A horizontal portion extending in the horizontal direction from the shaft portion and a horizontal portion
The vertical blind according to claim 1, further comprising a hanging portion capable of suspending the operating member in the vicinity of the tip of the horizontal portion. The vertical blind according to claim 1 or 2, wherein the hanging shaft can rotate in conjunction with the rotation of the rotating shaft that rotates the louver. The vertical blind according to claim 2, wherein the driving member is integrally formed with one of the carriers or is detachably connected to the one carrier. The vertical blind according to any one of claims 2 to 4, wherein the hanging portion of the rotating member is arranged behind the axis of the carrier.

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