Pleated blind having positioning function

Abstract

A pleated blind includes a blind body having a plurality of pleated portions each having a pleated edge, and a limit cord secured to the pleated edges of the pleated portions of the blind body. When the pleated portions are moved, the maximum distance between any two adjacent pleated edges of the pleated portions is limited by the limit cord, so that the open distance of each of the pleated portions is limited by the limit cord to reach a determined value. Thus, each of the pleated portions will not be opened excessively due to improper operation by a user, thereby preventing either one of the pleated portions from being deformed or distorted due to an overload so as to enhance the outer appearance of the pleated blind.

Description

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a pleated blind, and more particularly to a pleated blind having a positioning function.

2. Description of the Related Art

A conventional pleated blind in accordance with the prior art shown in FIG. 6 comprises a headrail 7, a blind body 6 mounted on the headrail 7 and having a plurality of pleated portions 61, and a lift cord 8 extended through the headrail 7 and each of the pleated portions 61 of the blind body 6 to control upward and downward movement of the blind body 6. Each of the pleated portions 61 of the blind body 6 has a through hole 62 to allow passage of the lift cord 8. However, when a user exerts an excessive force on the lift cord 8, some of the pleated portions 61 of the blind body 6 are opened excessively due to improper operation of the lift cord 8 by the user, so that the pleated portions 61 of the blind body 6 are easily deformed or distorted due to an overload as shown in FIG. 6, thereby decreasing the outer appearance of the pleated blind.

SUMMARY OF THE INVENTION

In accordance with the present invention, there is provided a pleated blind, comprising a blind body having a plurality of pleated portions each having a pleated edge, and a limit cord secured to the pleated edges of some of the pleated portions of the blind body to limit a distance between the pleated edges of the pleated portions of the blind body.

The primary objective of the present invention is to provide a pleated blind having a positioning function so that the shape of each of the pleated portions of the blind body is not deformed.

Another objective of the present invention is to provide a pleated blind, wherein when the pleated portions of the blind body are moved upward and downward by operation of the lift cord, the maximum distance between any two adjacent pleated edges of the pleated portions of the blind body is limited by the limit cord, so that the open distance of each of the pleated portions of the blind body is limited by the limit cord to reach a determined value.

A further objective of the present invention is to provide a pleated blind, wherein each of the pleated portions of the blind body will not be opened excessively due to improper operation of the lift cord by a user, thereby preventing either one of the pleated portions of the blind body from being deformed or distorted due to an overload so as to enhance the outer appearance of the pleated blind.

A further objective of the present invention is to provide a pleated blind, wherein the limit cord is made easily and has an inexpensive price, thereby greatly decreasing cost of fabrication.

Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a pleated blind in accordance with the preferred embodiment of the present invention.

FIG. 1A is a locally enlarged view of the pleated blind as shown in FIG. 1.

FIG. 1B is a locally enlarged view of the pleated blind as shown in FIG. 1.

FIG. 2 is a perspective view showing a manufacturing process of the pleated blind as shown in FIG. 1.

FIG. 3 is a perspective view of a pleated blind in accordance with another preferred embodiment of the present invention.

FIG. 4 is a partially side plan view of a pleated blind in accordance with another preferred embodiment of the present invention.

FIG. 5 is a perspective view of a pleated blind in accordance with another preferred embodiment of the present invention.

FIG. 6 is a perspective view of a conventional pleated blind in accordance with the prior art.

DETAILED DESCRIPTION OF THE INVENTION

Referring to the drawings and initially to FIG. 1, a pleated blind in accordance with the preferred embodiment of the present invention comprises a headrail 4, a blind body 1 mounted on the headrail 4 and having a plurality of pleated portions 11 each having a pleated edge 111, a lift cord 3 extended through the headrail 4 and each of the pleated portions 11 of the blind body 1 to control upward and downward movement of the blind body 1, and a limit cord 2 secured to the pleated edges 111 of some of the pleated portions 11 of the blind body 1 to limit a distance between the pleated edges 111 of the pleated portions 11 of the blind body 1.

Preferably, the limit cord 2 is secured to the pleated edge 111 of each of the pleated portions 11 of the blind body 1 to limit a distance between any two adjacent pleated edges 111 of the pleated portions 11 of the blind body 1.

In addition, the pleated edge 111 of an uppermost one of the pleated portions 11 of the blind body 1 is attached to the headrail 4 by the limit cord 2.

When in use, when the pleated portions 11 of the blind body 1 are moved upward and downward by operation of the lift cord 3, the maximum distance between any two adjacent pleated edges 111 of the pleated portions 111 of the blind body 1 is limited by the limit cord 2, so that the open distance of each of the pleated portions 11 of the blind body 1 is limited by the limit cord 2 to reach a determined value.

Thus, each of the pleated portions 11 of the blind body 1 will not be opened excessively due to improper operation of the lift cord 3 by a user, thereby preventing either one of the pleated portions 11 of the blind body 1 from being deformed or distorted due to an overload.

As shown in FIG. 1, the pleated edge 111 of each of the pleated portions 11 of the blind body 1 is serially attached to the limit cord 2, and the pleated edges 111 of the pleated portions 11 of the blind body 1 are equally spaced from each other by restriction of the limit cord 2.

As shown in FIG. 1A, the pleated edge 111 of each of the pleated portions 11 of the blind body 1 is attached to the limit cord 2 by sewing.

As shown in FIG. 1B, the pleated edge 111 of each of the pleated portions 11 of the blind body 1 is attached to the limit cord 2 by a high frequency melting process.

Alternatively, the pleated edge 111 of each of the pleated portions 11 of the blind body 1 is attached to the limit cord 2 by an adhesive.

As shown in FIG. 2, the blind body 1 is supported by a molding die 5 to facilitate the high frequency melting process of the pleated edge 111 of each of the pleated portions 11 of the blind body 1.

As shown in FIG. 3, the pleated edge 111 of each of the pleated portions 11 of the blind body 1 is serially attached to the limit cord 2, and the pleated edges 111 of the pleated portions 11 of the blind body 1 are spaced from each other with different distances by restriction of the limit cord 2, so that the pleated portions 11 of the blind body 1 have different pleated angles.

In addition, the limit cord 2 is serially secured to the pleated edge 111 of each of the pleated portions 11 of the blind body 1 in a multi-state manner.

As shown in FIG. 4, the limit cord 2 is extended into a side of each of the pleated portions 11 of the blind body 1 to reinforce the strength between the limit cord 2 and the pleated edge 111 of each of the pleated portions 11 of the blind body 1.

As shown in FIG. 5, the pleated portions 11 of the blind body 1 are divided into several intervals 112 each having a single pleated edge 111 serially attached to the limit cord 2. The intervals 112 of the blind body 1 are equally spaced from each other by restriction of the limit cord 2, and the open distance of each of the pleated portions 11 in each of the intervals 112 of the blind body 1 is limited by the limit cord 2 to reach a determined value.

Accordingly, when the pleated portions 11 of the blind body 1 are moved upward and downward by operation of the lift cord 3, the maximum distance between any two adjacent pleated edges 111 of the pleated portions 11 of the blind body 1 is limited by the limit cord 2, so that the open distance of each of the pleated portions 11 of the blind body 1 is limited by the limit cord 2 to reach a determined value. In addition, each of the pleated portions 11 of the blind body 1 will not be opened excessively due to improper operation of the lift cord 3 by a user, thereby preventing either one of the pleated portions 11 of the blind body 1 from being deformed or distorted due to an overload so as to enhance the outer appearance of the pleated blind. Further, the limit cord 2 is made easily and has an inexpensive price, thereby greatly decreasing cost of fabrication.

Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention.

Claims

1. A pleated blind, comprising:

a blind body having a plurality of pleated portions each having a pleated edge;

a limit cord secured to the pleated edges of some of the pleated portions of the blind body to limit a distance between the pleated edges of the pleated portions of the blind body.

2. The pleated blind in accordance with claim 1, wherein the limit cord is secured to the pleated edge of each of the pleated portions of the blind body to limit a distance between any two adjacent pleated edges of the pleated portions of the blind body.

3. The pleated blind in accordance with claim 1, wherein the blind body is mounted on a headrail, and the pleated edge of an uppermost one of the pleated portions of the blind body is attached to the headrail by the limit cord.

4. The pleated blind in accordance with claim 1, wherein a maximum distance between any two adjacent pleated edges of the pleated portions of the blind body is limited by the limit cord, so that an open distance of each of the pleated portions of the blind body is limited by the limit cord to reach a determined value.

5. The pleated blind in accordance with claim 1, wherein the pleated edge of each of the pleated portions of the blind body is serially attached to the limit cord.

6. The pleated blind in accordance with claim 1, wherein the pleated edges of the pleated portions of the blind body are equally spaced from each other by restriction of the limit cord.

7. The pleated blind in accordance with claim 1, wherein the pleated edge of each of the pleated portions of the blind body is attached to the limit cord by sewing.

8. The pleated blind in accordance with claim 1, wherein the pleated edge of each of the pleated portions of the blind body is attached to the limit cord by a high frequency melting process.

9. The pleated blind in accordance with claim 1, wherein the limit cord is serially secured to the pleated edge of each of the pleated portions of the blind body in a multi-state manner.

10. The pleated blind in accordance with claim 1, wherein the limit cord is extended into a side of each of the pleated portions of the blind body to reinforce a strength between the limit cord and the pleated edge of each of the pleated portions of the blind body.

11. The pleated blind in accordance with claim 1, wherein the pleated portions of the blind body are divided into several intervals each having a single pleated edge serially attached to the limit cord.

12. The pleated blind in accordance with claim 11, wherein the intervals of the blind body are equally spaced from each other by restriction of the limit cord.

13. The pleated blind in accordance with claim 11, wherein an open distance of each of the pleated portions in each of the intervals of the blind body is limited by the limit cord to reach a determined value.

14. The pleated blind in accordance with claim 1, wherein the pleated edge of each of the pleated portions of the blind body is attached to the limit cord by an adhesive.