JP6987001B2 - Vertical blinds - Google Patents

Description

The present invention relates to a vertical blind having a balance weight attached to each of the lower ends of a plurality of louvers whose upper ends are slidably and rotatably attached to a head rail.

Conventionally, a vertical brand in which a plurality of carriers that can move in the longitudinal direction of the head rail are housed in the head rail, louvers are hung from each carrier, and a balance weight is attached to the lower end of each louver. Is disclosed (see, for example, Patent Document 1). In this vertical blind, the weight cover that covers the weight body of the balance weight is formed in a plate shape with plastic, and the first weight cover and the second weight cover are connected by an integral hinge formed in the central portion in the vertical direction. And have. The first and second weight covers are configured to be foldable in the vertical direction. Further, a long hole through which a louver can be inserted is formed in the end edge portion of the first weight cover, that is, the upper end portion of the first weight cover in a state where the first and second weight covers are folded in half with the integral hinge as the lower end. Is formed. Further, four locking protrusions for holding the weight body are formed on the inner surface of the first weight cover. Further, on the inner surface of the second weight cover, a pair of locking claws are provided on the left and right at intervals in the vertical direction in three sets, and a louver sandwiched between the first and second weight covers is attached to these locking claws. It is configured to be lockable.

On the other hand, the weight body used to be sandwiched between the first and second weight covers is formed of a metal plate, and an elongated hole having substantially the same dimensions as the elongated hole formed in the first weight cover is formed at the upper end thereof. To. When this weight body is attached to the inner surface of the first weight cover, the elongated hole of the first weight cover and the elongated hole of the weight body are configured to communicate with each other. Then, the frame-shaped portion located above the elongated hole of the weight body comes into contact with the inner surface of the frame-shaped portion located above the elongated hole of the first weight cover. Further, ribs that fit into the upper and lower opening edges of the elongated holes of the weight body are formed on the upper and lower opening edges of the elongated holes of the first weight cover. Further, the first and second weight covers are folded in half with the upper ends of both side edges of the first weight cover and the lower ends of both side edges of the second weight cover, that is, the integral hinges as the lower ends. Engagement protrusions and engagement holes are formed on the upper portions of both side edges of the second weight cover, respectively. When the first and second weight covers are folded in half, the engaging protrusions engage with the engaging holes so that the first and second weight covers can be held in the folded state. ..

In order to attach the balance weight of the vertical blind configured as described above to the lower end of the louver, first, the weight body is attached to the inner surface of the first weight cover. At this time, the long hole of the first weight cover and the long hole of the weight body communicate with each other. Further, since the rib formed on the opening edge of the long hole of the first weight cover fits into the opening edge of the long hole of the weight body, the opening edge of the long hole of the weight body in the vertical direction is covered with the rib. Next, the lower end of the louver is inserted into the elongated hole, and the outer surface of the first and second weight covers is covered with the louver, and the lower edge of the second weight cover is further covered with the lower inner surface of the second weight cover. Then, when the first and second weight covers are folded in half and the engaging protrusion of the first weight cover is engaged with the engaging hole of the second weight cover, the louver is placed between the first and second weight covers. The locking claw bites into the louver, the lower end edge of the louver is held between the first and second weight covers, and the balance weight is attached to the lower end of the louver. At this time, as for the balance weight, only the substantially frame-shaped portion of the first weight cover is exposed. Further, although the load of the balance weight acts on the frame-shaped portion of the first weight cover, since this frame-shaped portion is reinforced by the frame-shaped portion of the weight body, the bending in the direction in which the thickness of the first weight cover increases. Can be prevented.

Utility Model Registration No. 3169786 (paragraphs [0013], [0017] to [0020], [0023] to [0031], FIGS. 1 to 4).

However, in the vertical blind shown in the above-mentioned conventional patent document 1, the louver itself is strong and the repulsive force against bending is relatively large. Therefore, the first and second weight covers are folded in half. Even if the engaging protrusion of the first weight cover is engaged with the engaging hole of the second weight cover, the louver can move relatively in the gap between the first and second weight covers and in the elongated hole. There was a problem that the portion of the louver covering the first and second weight covers swelled and spoiled the appearance. Further, in the vertical blind shown in the above-mentioned conventional patent document 1, when a plurality of louvers are gathered on one side edge of the window in order to open the window, these louvers expand downward and look good. There is also a problem that the aggregate thickness of a plurality of louvers becomes large as well as impairing the above.

The first object of the present invention is that even if the louver itself is strong and the repulsive force against bending is relatively large, the portion of the louver that covers the first and second weight covers hardly swells, and the lower part of the louver does not swell. The purpose is to provide vertical blinds that do not spoil the appearance. Further, a second object of the present invention is that even if a plurality of louvers are assembled on one side edge of a window or the like, the louvers are prevented from spreading toward the bottom and the appearance is not impaired, and a plurality of louvers are present. The purpose is to provide a vertical blind that can suppress an increase in the aggregate thickness of the louver. A third object of the present invention is to provide a vertical blind that can prevent the louver from being damaged at the corners of the protrusions.

As shown in FIGS. 1, 4 and 6, the first aspect of the present invention is a head rail 12 mounted on a window frame 11, a wall surface or a ceiling, and a longitudinal direction of the head rail 12 housed in the head rail 12. A vertical blind 10 having a plurality of carriers 13 that can be moved to, a plurality of louvers 14 suspended from the plurality of carriers 13, and a plurality of balance weights 16 attached to the lower ends of the plurality of louvers 14. The balance weight 16 has a plate-shaped weight body 24 attached to the lower part of the louver 14 and a weight cover 26 that covers the weight body 24, and the weight cover 26 attaches the weight body 24 to the louver 14. A receiver that connects the plate-shaped first and second holding pieces 31 and 32 to be held attached to the lower part of the louver and the lower end edges of the first and second holding pieces 31 and 32 and receives the lower end of the weight body 24. With the portion 33 and the receiving portion 33 receiving the lower end of the weight main body 24, the upper ends of the first and second holding pieces 31 and 32 are configured to be located below the upper end of the weight main body 24. Both ends of the appaste 36, which is located above the upper end of the second holding piece 32 and is formed longer than the widths of the first and second holding pieces 31, 32, protrude into both sides of the first holding piece 31. By being connected to the pair of arm portions 37, 37 provided, a long hole 26a into which the weight body 24 and the lower part of the louver 14 can be inserted is formed, and the weight body attached to the lower part of the louver 14 is formed. 24 is inserted into the elongated hole 26a together with the lower part of the louver 14 from above and is sandwiched by the first and second sandwiching pieces 31, 32, the receiving portion 33 receives the lower end of the weight body 24, and the applaste 36 receives the lower end of the weight body 24. With the upper side surface received via the louver 14, the louver 14 located above the weight body 24 covers the first and second holding pieces 31, 32 and is attached to the appastate 36 and the weight body 24. It is characterized by being inserted between 14 and 14.

The second aspect of the present invention is the invention based on the first aspect, and as further shown in FIGS. 1 and 3, the weight body 24 attached to the lower part of the louver 14 is long together with the lower part of the louver 14. It is inserted into the hole 26a from above and is sandwiched by the first and second holding pieces 31, 32, and the receiving portion 33 receives the lower end of the weight main body 24, and is desired from the upper surface of the weight main body 24 at the upper end edge of the appastate 36. It is characterized in that a louver 38 having a predetermined height is formed.

The third aspect of the present invention is the invention based on the second aspect, and is characterized in that an R chamfer is formed in the corner portion 38a of the ridge 38 as shown in FIG.

In the vertical blind according to the first aspect of the present invention, the upper ends of the first and second holding pieces are weighted while the first and second holding pieces hold the weight body and the receiving portion receives the lower end of the weight body. Connect both ends of the appaste, which is located below the upper end of the main body, above the upper end of the second holding piece, and longer than the width of the first and second holding pieces, to the pair of arms. As a result, a long hole into which the weight body and the lower part of the louver can be inserted is formed in a plan view. 2 The louvers located above the weight body hold the first and second sandwiches with the receiving part receiving the lower end of the weight body and the appaste receiving the upper side surface of the weight body via the louver. It covers the piece and is inserted between the appastate and the louver attached to the weight body. At this time, since the appaste presses the two louvers against the hard weight body, the louvers protruding upward from the balance weight are pulled up against the pressing force to lift the first and second holding pieces of the louvers. When the bulge of the covered portion is removed, the bulge of the louver is maintained in the removed state by the pressing force. As a result, even if the louver itself is strong and the repulsive force against bending is relatively large, the pressing force prevents the louver from moving to the first and second sandwiching sides through the elongated hole. , The portion of the louver covering the first and second holding pieces hardly swells, and the appearance of the lower part of the louver is not impaired. Also, even if a plurality of louvers are gathered on one side edge of the window in order to open the window, it is possible to prevent these louvers from spreading toward the bottom. As a result, the appearance of the plurality of louvers assembled is not spoiled, and the thickness of the aggregated louvers can be suppressed from increasing, so that the open area of the window is not narrowed by the plurality of louvers.

In the vertical blind according to the second aspect of the present invention, the weight body attached to the lower part of the louver is inserted into the elongated hole together with the lower part of the louver from above and is sandwiched by the first and second holding pieces, and the receiving portion is held. With the lower end of the weight body received, a ridge of the desired height was formed on the upper surface of the weight body on the upper edge of the appastate, so that the vertical axis including the central axis in the thickness direction of the louver protruding upward from the balance weight. The line is regulated by the above ridges so as to coincide with the vertical line containing the combined center of gravity of the balance weights and the respective centers of gravity of the louvers below the ridges. As a result, the balance weight is maintained in a vertically extended state without tilting.

In the vertical blind according to the third aspect of the present invention, since the R chamfer is formed at the corner portion of the ridge, when the lower end of the louver is inserted into the elongated hole or when the pair of arms is held from the balance weight. If the louver comes into contact with the corner of the protrusion when pulling up the louver that protrudes upward, the louver will not be damaged.

FIG. 5 is a cross-sectional view taken along the line AA of FIG. 5 showing a state immediately before inserting the weight body and the lower portion of the louver of the vertical brand of the embodiment of the present invention into the elongated hole. (A) is a cross-sectional view corresponding to FIG. 1 showing a state in which the weight body and the lower part of the louver are inserted into the elongated hole from above and then projected from below the elongated hole so as to be positioned on the second holding side of the weight cover. , (B) is a cross-sectional view corresponding to FIG. 1 showing a state in which the weight body and the lower part of the louver are positioned above the elongated hole from the outer surface of the second holding piece through the lower surface of the receiving portion and the outer surface of the first holding piece. In (c), the weight body and the lower part of the louver are inserted into the elongated hole from above, and the weight body and the lower part of the louver are sandwiched by the first and second sandwiches, and the first and second sandwiches are sandwiched by the louver. It is sectional drawing corresponding to FIG. 1 which shows the state which covered. It is an enlarged sectional view of part B of FIG. 2C. It is the C arrow view of FIG. 1 which saw the weight cover from the 2nd holding one side. It is an exploded perspective view of the main part of a louver lower part and a balance weight. It is a front view of the vertical blind which shows the state which the balance weight is attached to the lower end of each of a plurality of louvers.

Next, a mode for carrying out the present invention will be described with reference to the drawings. As shown in FIG. 6, the vertical blind 10 includes a head rail 12 attached to the window frame 11, a plurality of carriers 13 housed in the head rail 12 and movable in the longitudinal direction of the head rail 12, and a plurality of carriers. A plurality of louvers 14 suspended from each of the louvers 13 and a plurality of balance weights 16 attached to the lower ends of the plurality of louvers 14 are provided. The head rail 12 is attached to the lower surface of the upper frame portion 11a of the window frame 11. Further, in the head rail 12, an endless circuit cord 17 that can be rotated by moving a plurality of carriers 13 along the head rail 12 to deploy or assemble a plurality of louvers 14 is provided. The circuit cord 17 is arranged in the head rail 12 and hangs down from the lower surface of one end of the head rail 12 to form a movement operation unit 18. The circuit cord 17 having one end attached to the leading carrier 13 passes through the head rail 12, is hung from the lower surface of one end of the head rail 12 and passes through the head rail 12 again, and the other end of the circuit cord 17 is the leading carrier 13. Can be attached to. Further, the succeeding carrier 13 is connected to the leading carrier 13 by a connecting code (not shown), and the succeeding carrier 13 is further connected to the adjacent carrier 13 by a connecting code (not shown). As a result, when the movement operation unit 18 is operated to deploy the louver 14, the carrier 13 subsequently moves sequentially while following the leading carrier 13 at a predetermined interval, and the movement operation unit is used to collect the louvers 14. When the 18 is operated, the leading carrier 13 is configured to move while collecting the succeeding carriers 13. Reference numeral 19 in FIG. 6 is a tilt operation rod for rotating the plurality of louvers 14. One tilt rod is inserted through all carriers 13, and the tilt operation rod 19 and the tilt rod have a torsion gear structure using a bevel gear or the like, so that the rotational force of the tilt operation rod 19 is horizontal from the direction around the vertical axis. It is configured to be convertible in the axial direction. When the tilt operation rod 19 is rotated around its central axis, the tilt rod rotates about the horizontal axis, and the rotational force of the tilt rod is transmitted to the worm gear mechanism rotatably housed in the carrier 13. Dimming can be performed by rotating the louver 14 around a vertical axis. Further, reference numeral 21 in FIG. 6 is a weight attached to the lower end of the movement operation unit 18 via a pulley (not shown).

On the other hand, the balance weight 16 has a plate-shaped weight body 24 and a weight cover 26 that covers the weight body 24 (FIGS. 1, 2, 4, and 5). The weight body 24 is formed in the shape of a rectangular plate by a hard material such as a stainless steel plate or a surface-treated carbon steel plate (FIGS. 4 and 5). Further, the weight cover 26 has plate-shaped first and second holding pieces 31 and 32 for holding the weight body 24 in a state of being attached to the lower part of the louver 14, and lower end edges of the first and second holding pieces 31 and 32. Has a receiving portion 33 for connecting and receiving the lower end of the weight main body 24 (FIGS. 1, FIG. 2, FIG. 4 and FIG. 5). Here, in order to attach the weight body 24 to the lower part of the louver 14, it is preferable to use the double-sided adhesive tape 34 (FIG. 5). Further, the weight cover 26, that is, the first holding piece 31, the second holding piece 32, and the receiving portion 33 are integrally formed by injection molding of a plastic such as polypropylene (FIGS. 1, FIG. 2, FIG. 4, and FIG. 5). ). Further, the first and second holding pieces 31 and 32 are formed in the shape of a rectangular plate in this embodiment, and the first holding piece 31 is formed to be one size larger than the second holding piece 32 (FIGS. 4 and FIG. 5). Further, with the receiving portion 33 receiving the lower end of the weight main body 24, the upper ends of the first and second holding pieces 31 and 32 are configured to be located below the upper end of the weight main body 24 (FIGS. 2 and FIG. 3). In this embodiment, with the receiving portion 33 receiving the lower end of the weight body 24, the upper end of the weight body 24 is the highest, the upper end of the second holding piece 32 is the lowest, and the upper end of the first holding piece 31 is these. It is configured to be located between.

On the other hand, an appaste 36 is provided which is located upward at a distance from the upper end of the second holding piece 32 and extends in the horizontal direction (FIGS. 1 to 5). The appaste 36 is formed longer than the width of the first and second holding pieces 31, 32 (FIGS. 4 and 5). Then, both ends of the applaste 36 are connected to a pair of arm portions 37, 37 projecting from both sides of the first holding piece 31, so that the weight body 24 and the lower portion of the louver 14 can be inserted in a plan view. Holes 26a are formed (FIGS. 1 to 3). The lower end of the applaste 36 is located substantially on the same horizontal plane as the upper end of the first holding piece 31, and the upper end of the appaste 36 is predetermined from the upper end of the weight body 24 with the receiving portion 33 receiving the lower end of the weight body 24. It is configured to be located above by the distance of (FIGS. 2 and 3). Further, the longitudinal dimension of the elongated hole 26a in a plan view is formed to be slightly longer than the width of the louver 14, and the short dimension of the elongated hole 26a in a plan view is formed to be slightly wider than the thickness of the weight body 24. Further, the width of the first holding piece 31 is narrower than the width of the louver 14, the width of the weight body 24 is narrower than the width of the first holding piece 31, and the width of the second holding piece 32 is formed to be narrower than the width of the weight body 24. (Fig. 5). That is, the width of the louver 14 is the widest, and the width is narrowed in the order of the first holding piece 31, the weight body 24, and the second holding piece 32. Then, when the weight main body 24 and the lower portion of the louver 14 attached to the weight main body 24 are inserted into the elongated hole 26a, the weight main body 24 and the lower portion of the louver 14 attached to the weight main body 24 have these thicknesses. As for the direction (the short side direction of the long hole), it fits in the long hole 26a without any gap.

On the other hand, the weight body 24 attached to the lower part of the louver 14 is inserted into the elongated hole 26a together with the lower part of the louver 14 from above and is sandwiched by the first and second holding pieces 31, 32, and the receiving portion 33 is the weight body 24. A louver 38 having a desired height is formed on the upper surface of the weight body 24 on the upper end edge of the applaste 36 in a state of receiving the lower end of the louver (FIGS. 1 to 3). That is, as shown in detail in FIG. 3, a ridge 38 extending in the longitudinal direction of the appaste 36 is formed on the surface of the upper end surfaces of the appaste 36 facing the surface on which the first holding piece 31 is extended upward. The ridge 38 is configured to be located above the upper end of the weight body 24 with the receiving portion 33 receiving the lower end of the weight body 24. Further, the height of the ridge 38 is such that the vertical straight line 41 including the central axis in the thickness direction of the louver 14 protruding upward from the balance weight 16 is the balance weight 16 and the louver 14 below the ridge 38, respectively. It is set so as to match the vertical line 42 including the synthetic center of gravity obtained by synthesizing the center of gravity. Further, an R chamfer is formed at the corner portion 38a of the ridge 38 (FIG. 3). The radius of curvature of this R chamfer is preferably formed in the range of 0.5 mm to 1 mm.

On the other hand, on the inner surface of the first holding piece 31, a flat recess 31a having a depth substantially the same as the thickness of the weight main body 24 and capable of accommodating most of the weight main body 24 is formed (FIGS. 1, 2 and 2). 4 and FIG. 5). The width of the flat recess 31a is formed to be larger than the width of the weight body 24, and a pair of inclined protrusions on both inner surfaces of the flat recess 31a gradually narrow the width of the flat recess 31a toward the center in the height direction. 31b, 31b are formed (FIGS. 4 and 5). The distance between the protruding ends of the pair of inclined protrusions 31b and 31b is formed to be slightly wider than that of the weight body 24. As a result, when the weight body 24 is inserted into the elongated hole 26a, the weight body 24 is guided by the pair of inclined protrusions 31b and 31b so as to be positioned substantially at the center in the width direction of the first holding piece 31. .. Further, in the center of the first holding piece 31, a square hole 31c facing the second holding piece 32 and slightly larger than the second holding piece 32 is formed. The square hole 31c is formed so that the weight cover 26 can be easily integrally formed by injection molding.

On the other hand, on the weight main body 24, two steps in the vertical direction and five in the horizontal direction, a total of ten unevennesses 24a, are formed so that the adjacent protrusion directions are opposite to each other (FIGS. 1, 2 and 5). .. Further, a total of four first recesses 31d are formed in two stages in the vertical direction on both side edges of the square hole 31c of the first holding piece 31, and four first recesses 31d are formed on both side edges of the second holding piece 32. A total of four second recesses 32a facing each other are formed, and a single vertically long through hole 32b is formed in the upper part of the center of the second holding piece 32 in the width direction (FIGS. 4 and 5). In the first recess 31d, the second recess 32a, and the through hole 32b, the weight body 24 attached to the lower part of the louver 14 is inserted into the elongated hole 26a together with the lower part of the louver 14 from above to form the first and second holding pieces. The weight body 24 is sandwiched by the weight bodies 31 and 32, and the weight body 24 is covered by the weight cover by accommodating the unevenness 24a formed on the weight body 24 directly or via the louver 14 in a state where the receiving portion 33 receives the lower end of the weight body 24. It is configured to be relatively difficult to move with respect to 26, that is, to be positioned (FIG. 2).

Reference numeral 43 in FIG. 6 is a bottom code for regulating the spacing between adjacent louvers 14 and 14. Further, reference numeral 44 in FIGS. 4 and 5 is a cord insertion hole for inserting the bottom cord 43. The cord insertion hole 44 is formed by projecting a pair of portal pieces 46, 46 from the tip surfaces of a pair of arm portions 37, 37 projecting from the first holding piece 31. Further, reference numeral 33a in FIGS. 4 and 5 is a lower protrusion projecting from the center of the receiving portion 33 in the longitudinal direction on the same plane as the first holding piece 31. When the receiving portion 33 receives the lower end of the weight main body 24, the lower protrusion 33a prevents the receiving portion 33 from being deformed and detached from the weight main body 24, and the receiving portion 33 surely receives the lower end of the weight main body 24. Formed to do so. Further, reference numeral 32c in FIGS. 4 and 5 is a weight reduction hole formed for weight reduction of the second holding piece 32.

A procedure for attaching the balance weight 16 to the lower end of the louver 14 of the vertical blind 10 configured in this way will be described. First, the weight body 24 is attached to the lower part of the louver 14 with the double-sided adhesive tape 34 (FIGS. 1, FIG. 2 (a), FIG. 2 (b), and FIG. 5). Next, as shown in FIG. 1, the weight main body 24 and the lower portion of the louver 14 are positioned above the weight cover 26 so that the weight main body 24 is located on the first holding piece 31 side and the louver 14 is located on the appastate 36 side. In this state, the weight body 24 and the lower part of the louver 14 are inserted into the elongated hole 26a from above in the direction indicated by the broken line arrow in FIG. 1, and then protrude from below the elongated hole 26a to the outside of the second holding piece 32. Positioned (FIG. 2 (a)). Next, the weight main body 24 and the lower part of the louver 14 are positioned above the elongated hole from the outer surface of the second holding piece 32 through the lower part of the receiving portion 33 and the outer surface of the first holding piece 31 (FIG. 2B). Further, when the weight body 24 and the lower part of the louver 14 are inserted into the elongated hole 26a from above in the direction indicated by the alternate long and short dash arrow in FIG. 2B, the weight body 24 and the lower part of the louver 14 are inserted into the first and second holding pieces 31, It is sandwiched by 32, the receiving portion 33 receives the lower end of the weight main body 24, and the applaste 36 receives the upper side surface of the weight main body 24 via the louver 14 (FIG. 2 (c)). At this time, the weight body 24 and the lower portion of the louver 14 attached to the weight body 24 are inserted into the elongated hole 26a while elastically deforming the appaste 36, so that the appaste 36 hardens the two louvers 14 and 14. It is pressed against the weight body 24 (FIG. 3). In this state, the louver 14 projecting upward from the balance weight 16 is pulled up against the pressing force to remove the bulge of the portion of the louver 14 covering the first and second holding pieces 31, 32. The louver 14 is kept in a state where the bulge is removed. At this time, since the R chamfer is formed on the corner portion 38a of the ridge 38, the louver 14 is not damaged even if the louver 14 comes into contact with the corner portion 38a of the ridge 38. As a result, even if the louver 14 itself is strong and the repulsive force against bending is relatively large, the louver 14 moves to the first and second holding pieces 31 and 32 side through the elongated hole 26a. Since it is blocked by the pressing force, the portion of the louver 14 that covers the first and second holding pieces 31 and 32 hardly swells, and the appearance of the lower portion of the louver 14 is not impaired.

Further, since a ridge 38 having a desired height is formed on the upper surface of the weight body 24 on the upper end edge of the appaste 36, the louver 14 protruding upward from the balance weight 16 due to the ridge 38 is the central axis in the thickness direction. The vertical line 41 including the balance weight 16 and the louver 14 below the ridge 38 are regulated to coincide with the vertical line 42 including the combined center of gravity (FIG. 3). As a result, the balance weight 16 is maintained in a state of extending in the vertical direction without tilting. Further, even if a plurality of louvers 14 are assembled on one side edge of the window in order to open the window, it is possible to prevent these louvers 14 from spreading toward the bottom. As a result, the appearance of the plurality of louvers 14 aggregated is not impaired, and the aggregate thickness of the plurality of louvers 14 can be suppressed from increasing, so that the open area of the window is not narrowed by the plurality of louvers 14.

In the above embodiment, the head rail is attached to the window frame, but the head rail may be attached to the wall surface or the ceiling. Further, in the above embodiment, the weight body is formed in the shape of a rectangular plate, but the weight body may be formed in the shape of a square plate. Further, in the above embodiment, the weight body is attached to the lower part of the louver using a double-sided adhesive tape (FIG. 5), but the weight body may be attached to the lower part of the louver using an adhesive or an adhesive. good.

10 Vertical blind 11 Window frame 12 Head rail 13 Carrier 14 Louver 16 Balance weight 24 Weight body 26 Weight cover 26a Long hole 31 1st pinch piece 32 2nd pinch piece 33 Receiving part 36 Upper stay 37 Arm part 38 Protrusion 38a Corner part

Claims (3)

A head rail mounted on a window frame, a wall surface, or a ceiling, a plurality of carriers housed in the head rail and movable in the longitudinal direction of the head rail, a plurality of louvers suspended from the plurality of carriers, and the above. In a vertical blind with multiple balance weights attached to the lower ends of multiple louvers, respectively.
The balance weight has a plate-shaped weight body attached to the lower part of the louver and a weight cover that covers the weight body.
The weight cover connects the plate-shaped first and second holding pieces that hold the weight body in a state of being attached to the lower part of the louver, and the lower end edges of the first and second holding pieces, and the weight. It has a receiving part that receives the lower end of the main body, and has a receiving part.
With the receiving portion receiving the lower end of the weight body, the upper ends of the first and second holding pieces are configured to be located below the upper end of the weight body.
Both ends of the appaste, which are located above the upper end of the second holding piece and are formed longer than the width of the first and second holding pieces, are projected from both sides of the first holding piece. By being connected to the pair of arms, a long hole into which the weight body and the lower part of the louver can be inserted is formed in a plan view.
The weight body attached to the lower part of the louver is inserted into the elongated hole from above together with the lower part of the louver and is sandwiched by the first and second holding pieces, and the receiving portion receives the lower end of the weight body. Further, in a state where the applaste receives the upper side surface of the weight body via the louver, the louver located above the weight body covers the first and second holding pieces, and the appaste and the weight body. A vertical blind characterized by being inserted between the louver attached to the louver. The weight body attached to the lower part of the louver is inserted into the elongated hole from above together with the lower part of the louver and is sandwiched by the first and second holding pieces, and the receiving portion receives the lower end of the weight body. The vertical blind according to claim 1, wherein a louver having a desired height is formed on the upper surface of the weight body at the upper end edge of the appastate. The vertical blind according to claim 2, wherein an R chamfer is formed in the corner portion of the ridge.

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