JPH0676598U - Venetian blind slats - Google Patents

Abstract

(57) [Summary] [Purpose] A slat for Venetian blinds that can be individually attached to and detached from an elevating string, and reduces the man-hours required to attach and detach all the slats. [Structure] A slit having through holes 15 provided at both ends of the slat 14 and having a passing width smaller than the thickness or outer diameter of the lifting string 11.
The outer edge 17, 18 and 19 of the slat is opened by 16 and the inner end 21 and the outer end 22 of the slit are formed in an arc shape.
The arc-shaped radius of 21 is made smaller than the arc-shaped radius of the outer end 22.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improved detachable slat for a Venetian blind.

[0002]

[Prior art]

 A venetian blind capable of removing a broken or soiled slat from a lifting string and replacing it with a new one is known from Japanese Utility Model Publication No. 59-2896. This known blind is a system in which both ends of a slat are provided with notches that open in the side edge direction, a lifting string is passed through the notches, and the openings of the notches are sealed by clips attached to both ends of the slat. The blinds can be attached to or removed from the lifting box that is still attached to the headbox and bottom rail by removing the clips, so that the slats that have been damaged or soiled can be easily replaced.

[0003]

[Problems to be solved by the device]

 However, the known blind has the following problems. (1) Since the clips are attached to both ends of each slat, the number of steps required for assembling the blind increases. (2) Due to the clip, the slatability of the slat when the blind is raised is likely to be poor. (3) All the slats must be removed and reattached during cleaning, but the effort to remove and attach all the clips is extremely large.

The present invention has been made to solve these problems, and an object of the present invention is to separately install and remove a slat for a Venetian blind, in which a blind is assembled and all slats are installed and removed. It requires less man-hours required and provides good slat foldability when the blinds rise.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the means adopted by the present invention is to form a slit extending from the ascending / descending string through holes provided at both ends of the slat to the side edge of the slat or the leading edge or the trailing edge, and the passing width of the slit. Is that the thickness of the lifting cord is smaller than the thickness. It is desirable that both ends of the slit be enlarged along the arc so that the arc radius of the inner end is smaller than the arc radius of the outer end.

[0006]

[Action]

 According to the present invention, since the through-holes for the lifting strings provided at both ends of the slat are opened by the slits, the lifting strings can be put into the through-holes through the slits or taken out from the through-holes. The lifting cord can be put in and out of the through-hole through the slits manually, but since both ends of the slit, which are the entrances and exits, expand along the arc, it is easy to put the lifting string in and out. However, since the slit width is smaller than the thickness of the lifting string and the inner radius of the arc is smaller than the outer radius, the lifting string that has entered the through hole passes through the slit and passes through the through hole. There is little danger of coming off.

[0007]

【Example】

 A slat of the present invention will be described based on an embodiment shown in the drawings. As shown in FIG. 1, ascending / descending cords 11 hang from both ends of the head box 10 of the Venetian blind to suspend the bottom rail 12. A row of slats 14 is supported by a ladder cord 13 extending from both ends of the head box 10 to a bottom rail 12. Both ends of each slat 14 are held by the weft threads of the ladder cord 13. Through-holes 15 through which the lifting cords 11 pass are formed at both ends of each slat 14, and the through-holes are opened by slits 16 to the side edges 17 of the slats.

As shown in FIG. 2, the passing width of the slit 16 of the slat 14 is smaller than the thickness or diameter of the lifting cord 11. The slit 16 is orthogonal to the through hole 15 and the side edge 17 of the slat 14. The inner end 21 and the outer end 22 of the slit 16 are enlarged along an arc to facilitate the egress and egress of the elevating cord 11. The arc radius of the slit inner end 21 is smaller than the radius of the lifting cord 11, and the arc radius of the outer end 22 is larger than the radius of the lifting cord 11.

As shown in FIG. 3, the slit 16 may be opened to the front edge 18 of the slat 14 or a rear edge 19 (not shown). In this case as well, the width of the slit 16 and the arc radii of the inner and outer ends 21, 22 are the same as those in the embodiment of FIG. As shown in FIG. 4, the two opposite sides of the slit 16 for opening the through hole of the slat 14 are bent downward, or not shown, but bent upward, or only one of the two sides is bent upward or downward. Is also possible.

As shown in FIG. 5, when inserting the lifting cord 11 into the through hole 15, the lifting cord 11 is applied to the outer end of the slit 16 and the slats 14 are vertically pressed to the lifting cord 11 as shown by the arrow. The lifting cord 11 easily enters the through hole 15 through the slit 16. As shown in FIG. 6, when removing the lifting cord 11 from the through hole 15, bend the lifting cord 11 along the inner and outer ends of the slit 16, and then lower the lifting cord 11 as shown by the arrow. The lifting cord 11 is easily removed from the through hole 15 by pushing or turning the slat 14 upward.

[0011]

[Effect of device]

 As described above, the through holes at both ends of the slat of the present invention are opened by the slits having a width smaller than the thickness of the lifting string, the inner end and the outer end of the slit are enlarged in an arc shape, and the radius of the inner end side arc is set to be the outer radius. Since the radius is smaller than the radius of the end side arc, the ascending / descending string can be easily put in and out of the through hole through the slit, but the lifting string put in the through hole is less likely to come out of the slit without permission. Moreover, unlike the conventional slats in which the clips are attached to both ends of the slats, it is not necessary to remove the clips at the time of assembling the blinds or cleaning the slats. It has the excellent effect of significantly reducing energy consumption.

[Brief description of drawings]

FIG. 1 is a perspective view of a blind equipped with slats according to an embodiment of the present invention,

FIG. 2 is a plan view showing a main part of the slats shown in FIG.

3 is a view corresponding to FIG. 2 of another embodiment,

FIG. 4 is a side view of another embodiment of a slat,

FIG. 5 is a schematic view showing a state in which a lifting string is put in a through hole of a slat,

FIG. 6 is a schematic view showing a state in which a lifting string is removed from a through hole of a slat,

[Explanation of symbols]

10: Head box, 11: Lift code, 12: Bottom rail, 13: Ladder code, 14: Slat, 15: Through hole, 1
6: slit, 17: side edge, 18: front edge, 19: rear edge, 21: inner edge, 22: outer edge

Claims (5)

[Scope of utility model registration request] 1. An outer edge of a slat (17, 18) through slits (16), which pass through through-holes (15) for raising and lowering strings and which are provided at both ends and whose transfer width is smaller than the thickness or diameter of the raising and lowering strings (11). , 19)
A slat for Venetian blinds characterized by being opened in the. 2. The slit (16) is a side edge (1) at the end of the slat.
7. The slat for a venetian blind according to claim 1, which is extended so as to be orthogonal to the leading edge (18) or the trailing edge (19). 3. The slat for a venetian blind according to claim 1, wherein at least one of two opposite sides of the slit (16) is bent upward or downward. 4. An inner end (21) and an outer end (22) of the slit are enlarged along an arc, and an arc radius of the inner end is smaller than an arc corrugation radius of the outer end. Item 1
Alternatively, the slat for a venetian blind according to item 2. 5. The arc radius of the inner end (21) of the slit (16) is smaller than the radius of the lifting strap (11), and the arc radius of the outer end (22) is larger than the radius of the lifting strap. The slat for a venetian blind according to claim 4.