Venetian blind with a shade cloth

Abstract

 A venetian blind comprises a main blind assembly (20) and a shade cloth (30). The main blind assembly (20) has a head rail (21), a bottom rail (23), a slat set (22) having a plurality of slats (221), a lift cord controlling device (27) for driving said slat set (22) to move and for locking said slat set (22) at a predetermined position and a tilt controlling assembly (26). The shade cloth (30) has a covering body (31) and a connecting device (32). The covering body (31) has a covering cloth (331) and a plurality of sleeves (312) transversely extending at one side of the covering cloth (311) for the slats (22) respectively receiving therein. The connecting device (32) crossing the sleeves (312) and fixing with the sleeves (312) at outer ends thereof. The top end of the connecting device (32) connects to the tilt controlling assembly (26) for driving the sleeves (312) and the slats (221).

Description

FIELD OF THE INVENTION

[0001] The present invention relates generally to a venetian blind, and more particularly to a venetian blind with a shade cloth.

BACKGROUND OF THE INVENTION

[0002] The venetian blind is to shade sunshine from illuminating directly via window and to decorate the window. The inventor of the present invention has been working on improving the venetian blind for a long time. A venetian blind having capability of easy to assemble was provided by the inventor, which had a shade cloth mounted on the slats of the venetian blind.

[0003] But there still were two unsolved problems in the above-described venetian blind. First, for the point of mounting the shade cloth on the slats, there must provide a plurality of openings on the shade cloth. And the diameters of the openings must be larger than the distance between the two tilt cords, which are controlling the slats tilting. In conventional venetian blind, the tilt cords are respectively mounting at two sides of the slats and are closing to the ends as possible to facilitate the slats tilting smoothly. For this reason, the diameters of the openings of the shade cloth are substantially equal to the length of the slats. That will make the venetian blind looking strange. Second, if we don't want the shade cloth to provide the openings having larger diameters, then it must provide the two tilt cords locating closer. But, with this solution, it has to redesign the elements of venetian blind. In spite of not facilitating the slats tilting, the manufacture cost will rise a lot.

SUMMARY OF THE INVENTION

[0004] The primary objective of the invention is to provide a venetian blind, which has a shade cloth thereon. And furthermore, it is easy to manufacture and assemble.

[0005] According to the objective of the invention, a venetian blind has a main blind assembly and a shade cloth. The main blind assembly has a head rail, a slat set having a plurality of slats, a lift cord controlling device for driving the slat set to move and for locking the slat set at a predetermined position and a tilt controlling assembly. The shade cloth has a covering body and a connecting device. The covering body has a covering cloth and a plurality of sleeves transversely extending at one side of the covering cloth. The slats receive in the sleeves respectively. The connecting device crossing the sleeves and fixing with the sleeves at outer ends thereof. The top end of the connecting device connects to the tilt controlling assembly for driving the sleeves and the slats tilting.

BRIEF DESCRIPTION OF THE DRAWINGS

[0006] 

FIG. 1 is a perspective view of the first preferred embodiment;

FIG. 2 is an exploded view of the first preferred embodiment;

FIG. 3 is a top view of the first preferred embodiment;

FIG. 4 is the lateral view of FIG. 1 showing the slats tilting upwards;

FIG. 5 is the lateral view of FIG. 1 showing the slats tilting downwards;

FIG. 6 is a perspective view of the second preferred embodiment;

FIG. 7 is a perspective view of the third preferred embodiment;

FIG. 8 is a sectional view of FIG. 7 along 8-8;

FIG. 9 is the lateral view of FIG. 7;

FIG. 10 is the lateral view of FIG. 7 showing the slats tilting;

FIG. 11 is a perspective view of the fourth preferred embodiment, and

FIG. 12 is a perspective view of the fifth preferred embodiment.

DETAIL DESCRIPTION OF THE INVENTION

[0007] Please refer to FIG. 1 to FIG. 5, the first preferred embodiment of the present invention provides a venetian blind 10, which have a main blind assembly 20 and a shade cloth 30. The main blind assembly 20 comprises a head rail 21, a slat set 22 having a plurality of slats 221, a bottom rail 23, a lift cord controlling device 27 composed of a ratchet locking assembly 24 and a lift cord set 25, and a tilt controlling assembly 26à.

[0008] The head rail 21 is to be fixed at the topside of a window. The widths of the slats 221 of the slat set 22 are substantially equal to the width of the head rail 21. Each of the slats 221 has two opening 222. Please refer to FIG. 3, the ratchet locking assembly 24 mounts in the head rail 21. The lift cord set 25 passes through the opening 222 of the slats 221 having both ends thereof fixing on the bottom rail 23. The midsection of the lift cord set 25 passes through the ratchet locking assembly 24 and having a part left out of the head rail 21 for facilitating user to grip. Thus, user can pull the lift cord set 25 to drive the bottom rail 23 and the slats 221 to lift. The ratchet locking assembly 24 is capable of loosing or locking the lift cord set 25 to control the bottom rail 23 and the slats 221 to lift up, to lower down or to lock at any position. The tilt controlling assembly 26 has a rotating device 261 and an adjusting rod 262. The adjusting rod 262 has one end engaging with the rotating device 261, and the other end thereof left out of the head rail 21 for facilitating user to turn the adjusting rod 262 to drive the rotating device 261 to turn.

[0009] The shade cloth 30 has a covering body 31 and a connecting device 32. The covering body 31 is made of natural gauze, natural cotton, natural silk or synthesis gauze, e.g. nylon. The shade cloth 30 is to enhance the shade capacity of the main blind assembly 20 and make the venetian blind 10 of the present invention looking fancy. The extending area of the covering body 31 is substantially equal to or slightly larger than the extending area of the slats set 22. The covering body 31 has a covering cloth 311 and a plurality of sleeves 312 transversely extending at one side of the covering cloth 311. The top side and the bottom side of the covering cloth 311 attaches on the head rail 21 and bottom rail 23 respectively. Thus, the head rail 21 and the bottom rail 23 are covered by the covering cloth 311 to smooth the rigid shapes of the two rails 21 and 23.

[0010] The sleeves 312 of the covering body 31 are made by sewing the covering cloth 311 at determined intervals. Thus, each of the sleeves 312 forms a receiving space 313 therein. Each of the receiving spaces 313 is opening at both end and the space of the receiving space 313 is substantially equal to or slightly larger than the size of one slat 221. Each of the sleeves 312 has two openings 314 corresponding to the opening 222 of each slat 221. The connecting device 32 crosses the sleeves 312 at the outer ends. The connecting device 32 connects to the tilt controlling assembly 26 via two connecting pieces 33 and 34 for driving the slats 221 to tilt. In the present embodiment, the connecting device 32 has two cords 321 and 322 with bottom ends thereof fixing at the bottom rail 23. The connecting pieces 33 and 34 are part of the cords 321 and 322 respectively. The midsections of the cords 321 and 322 are fixing with the slats 312 at the out ends.

[0011] Hereunder we will describe how to assemble the elements of the venetian blind 10 and how it works.

[0012] Please refer to FIG. 2, first, we put the slats 221 of the slat set 22 into the receiving spaces 313 of the sleeves 312 of the shade cloth 30. The midsection of the lift cord set 25 mounts in the ratchet locking assembly 24 and left a part out of the head rail 21. Then, two ends of the lift cord set 25 pass through the openings 222 and 314 of the slats 221 and the sleeves 313 and finally fix at the bottom rail 23. User can pull the left out part of the lift cord set 25 to lift up or to lower down the slats 221 and the covering body 31 and the bottom rail 23 to adjust the shade area of the venetian blind 10 of the present invention. The ratchet locking assembly 24 is capable of locking or loosing the lift cord set 25 to make the slats 221 and the covering body 31 to lock at any position or to move.

[0013] Now please refer to FIG. 4 and FIG. 5, the top ends of the connecting pieces 33 and 34 pass through the head rail 21 and fix with the rotating device 261, and the other ends thereof connect to the topest sleeve 312 at the outer end thereof. User can turn the adjusting rod 262 to drive the rotating device 261 turning. Thus, the rotating device 261 can pull up the connecting pieces 33 and 34 and the cords 321 and 322 of the connecting device 32 to lift. In the meantime, the connecting device 32 will drive the slats 222 and the sleeves 312 to tilt upwards as shown in FIG. 4. If user turn the adjusting rod 262 along the opposite direction, the rotating device 261 will loose the connecting pieces 33 and 34 and the cords 321 and 322 to drive the slats 222 and the sleeves 312 to tilt downwards as shown in FIG. 5. In the present embodiment, the connecting pieces 33 and 34 are two cords.

[0014] It has to mention here, as shown in FIG. 6, the venetian blind 10' of the second preferred embodiment of the present invention is providing two cloth belts 321' and 322' to be the connecting device 32. The connecting pieces are two cloth belts 33' and 34'. That will make the venetian blind 10' looking fancier.

[0015] Hereunder are the advantages of the present invention:

1. Easy to manufacture:

[0016] The connecting device 32 and the connecting pieces 33 and 34 are connecting to the sleeves 312 at the outer ends to control the slats 221 tilting. So, there is no need to provide tilt cords at the slats 221. It also does not need to enlarge the diameter of the openings on the shade cloth or shift the tilt cords to the central of the slats as the conventional structure do. That will simplify the manufacture greatly.

2. Easy to assemble:

[0017] Because there are no tilt cords in the present invention, we have no need to assemble the tilt cords on the slats. It simplifies the assembly procedure.

3. Look fancy:

[0018] In the present invention, the shade cloth 30 covers on the head rail 21. That will smooth the rigid shape of the head rail 21. The exposed lift cords 25 are covered by the shade cloth 30. So the entire look of the venetian blind of the present invention is mainly shown by the pattern of the shade cloth 30.

[0019] The third preferred embodiment of the present invention provides a venetian blind 40 as shown in FIG. 7 to FIG. 10. It has a similar structure as the first embodiment. Hereunder we will describe the different elements of the third preferred embodiment. For the elements we don't mention hereunder are as same as the first preferred embodiment.

[0020] The venetian blind 40 of the third preferred embodiment has a main blind assembly 50 and a shade cloth 60. The shade cloth 60 has a connecting device 62 and two connecting pieces 63 and 64. The connecting device 62 has two cloth belts 621 and 622 in the present embodiment and the connecting pieces 63 and 64 have forms of cloth belts too. Each of the cloth belts 621, 622 and the connecting pieces 63, 64 has a through hole 623 therein along the longitude axis. A lift cord set 55 having midsection thereof connects with a ratchet locking assembly (not shown in FIG.) as described above. Then both ends of the lift cord set 55 pass through the through holes 623 of the cloth belt and the connecting pieces 63, 64, and finally fix on a bottom rail 53. Thus, we will see no lift cord 55 in the perspective view of the present embodiment but has the same functions as the first preferred embodiment.

[0021] The venetian blind 70 of the third preferred embodiment is shown in FIG. 11. A connecting device having a form of a piece of cloth is provided to replace the connecting device having a form of cords and cloth belts as described in above embodiments. That provides the same function as the above-described embodiments, and furthermore it will provide advantages of easier to manufacture and assemble, looking fancier and a novelty appearance of the venetian blind.

[0022] Please refer to FIG. 12, the fifth preferred embodiment of the preferred embodiment provides a venetian blind 80, which has a same structure as the first preferred embodiment except that the covering cloth of the covering body has a larger width than the sleeves. Thus two sides of the covering cloth are bended to fix with two lateral ends of the sleeves respectively.

Claims

1. A venetian blind comprising:

a main blind assembly having a head rail, a slat set having a plurality of slats, a lift cord controlling device for driving said slat set to move and for locking said slat set at a predetermined position and a tilt controlling assembly, and

a shade cloth having a covering body and a connecting device; said covering body having a covering cloth and a plurality of sleeves transversely extending at one side of said covering cloth; said slats receiving in said sleeves respectively; said connecting device crossing said sleeves and fixing with said sleeves at outer ends thereof; the top ends of said connecting device and said shade cloth connecting to said tilt controlling assembly by connecting pieces for driving said sleeves and said slats tilting.

2. The venetian blind as defined in claim 1, wherein the width of said covering cloth of said covering body being larger than said sleeves; two sides of said covering body being bended to cover two lateral ends of said sleeves.

3. The venetian blind as defined in claim 1, wherein the topside of said covering cloth of said covering body covering on said head rail.

4. The venetian blind as defined in claim 1, wherein further comprising a bottom rail locating at bottom side of said slat set; the end of said lift cord fixing on said bottom rail.

5. The venetian blind as defined in claim 4, wherein bottom side of said covering cloth of said covering body covering on said bottom rail.

6. The venetian blind as defined in claim 1, wherein said connecting device of said shade cloth having two substantially parallel cords crossing said slats at the outer ends thereof.

7. The venetian blind as defined in claim 6, wherein said cords of the connecting device and said connecting pieces are connected integrally.

8. The venetian blind as defined in claim 1, wherein said connecting device of said shade cloth having two substantially parallel cloth belts crossing said slats at the outer ends thereof

9. The venetian blind as defined in claim 8, wherein said cloth belts of said connecting device and the connecting pieces are connected integrally.

10. The venetian blind as defined in claim 8, wherein each of said cloth belts of said connecting device and said connecting pieces having a through hole respectively; said lift cord receiving in said through holes of said cloth belts.

11. The venetian blind as defined in claim 1, wherein said connecting device of said shade cloth having a form of a piece of cloth.

12. A venetian blind substantially as described herein with reference to, and as shown in, the accompanying drawings.

Drawing