CURTAIN DRAWSTRING ADJUSTMENT MECHANISM

• US 20190320838A1
• Filed: 03/21/2018
• Published: 10/24/2019
• Est. Priority Date: 08/11/2017
• Status: Abandoned Application

• Current Assignee: Xingbang Lei, Zhenbang Lei
• Original Assignee: Xingbang Lei, Zhenbang Lei
• Inventors: LEI, Zhenbang, LEI, Xingbang
• Application Number:
  US16/464,304
• Publication Number:
  US 20190320838A1
• Time in Patent Office: Days
• CPC Class Codes: A47H 11/06 Cord pulleys devices with guiding means and draw cords A47H5/032
• CPC Class Codes: A47H 5/032 Devices with guiding means and draw cords cord pulleys A47H11/06

Abstract

An embodiment of the present invention provides a curtain drawstring adjustment mechanism mounted at an outside of a drawstring exit of a curtain drawstring mechanism. The curtain drawstring adjustment mechanism includes a base, a slider slidably mounted to the base, and an adjustment member for adjusting a position of the slider in a direction perpendicular to an axial direction of the drawstring exit. The slider correspondingly forms a drawstring limiting portion for hooking the drawstring.

Claims

1. A curtain drawstring adjustment mechanism, mounted at an outside of a drawstring exit of a curtain drawstring mechanism, the curtain drawstring adjustment mechanism comprising:

a base;

a slider slidably mounted to the base, the slider correspondingly forming a drawstring limiting portion for hooking the drawstring; and

an adjustment member for adjusting a position of the slider in a direction perpendicular to an axial direction of the drawstring exit.

2. The curtain drawstring adjustment mechanism of claim 1, wherein the adjustment member comprises a blocking plate fixed to a side of the base, a threaded connector extending through the blocking plate and connected to an end of the slider adjacent to the blocking plate by threaded connection, and a spring respectively abutted against the slider and the blocking plate with two ends;

an end surface of the end of the slider adjacent to the blocking plate defines a threaded hole, an end of the threaded connector connected to the slider forms external threads that are screwed to the threaded hole, an end of the threaded connector away from the slider forms a head abutted against the blocking plate to limit a position of the threaded connector.

3. The curtain drawstring adjustment mechanism of claim 1, wherein the adjustment member is an adjustment ring defining internal threads, an outer surface of the slider defines external threads that are axially aligned with a sliding direction of the slider;

the base defines a slot, a width of the slot in the sliding direction of the slider matches a thickness of the adjustment ring in an axial direction of the internal threads;

the adjustment ring is disposed in the slot and is screwed to the external threads of the slider by the internal threads.

4. The curtain drawstring adjustment mechanism of claim 1, wherein a side surface of the slider forms a rack extending in a sliding direction of the slider, the adjustment member is a gear rotatably mounted to the base and meshing with the rack;

the base forms a limit lock for preventing the slider or the gear from returning back when the slider is adjusted in position.

5. The curtain drawstring adjustment mechanism of claim 1, wherein the adjustment member is a self-locking worm rotatably mounted to the base and axially aligned with a sliding direction of the slider, a side surface of the slider forms a helical rack extending in the sliding direction of the slider, the self-locking worm meshes with the helical rack.

6. The curtain drawstring adjustment mechanism of claim 1, wherein the drawstring limiting portion is a through hole, or a through hole mounted with a sliding pole for the drawstring abutting against.

7. The curtain drawstring adjustment mechanism of claim 1, wherein the base defines a limiting hole below the drawstring limiting portion, for the drawstring that extends from the drawstring limiting portion of the slider extending through;

the limiting hole and the drawstring exit of the curtain drawstring mechanism are located on the same side of the drawstring limiting portion of the slider.

8. The curtain drawstring adjustment mechanism of claim 7, wherein a sliding pole is disposed in the limiting hole for the drawstring to abutting against.

9. The curtain drawstring adjustment mechanism of claim 1, wherein surfaces against which the base and the slider are abutted are respectively provided with guide grooves and guide blocks which cooperate with each other to guide the slider to slide linearly.

10. The curtain drawstring adjustment mechanism of claim 1, further comprising a sliding pole disposed in the drawstring exit for the drawstring to abutting against.

11. The curtain drawstring adjustment mechanism of claim 2, wherein the base defines a limiting hole below the drawstring limiting portion, for the drawstring that extends from the drawstring limiting portion of the slider extending through;

the limiting hole and the drawstring exit of the curtain drawstring mechanism are located on the same side of the drawstring limiting portion of the slider.

12. The curtain drawstring adjustment mechanism of claim 3, wherein the base defines a limiting hole below the drawstring limiting portion, for the drawstring that extends from the drawstring limiting portion of the slider extending through;

the limiting hole and the drawstring exit of the curtain drawstring mechanism are located on the same side of the drawstring limiting portion of the slider.

13. The curtain drawstring adjustment mechanism of claim 4, wherein the base defines a limiting hole below the drawstring limiting portion, for the drawstring that extends from the drawstring limiting portion of the slider extending through;

the limiting hole and the drawstring exit of the curtain drawstring mechanism are located on the same side of the drawstring limiting portion of the slider.

14. The curtain drawstring adjustment mechanism of claim 5, wherein the base defines a limiting hole below the drawstring limiting portion, for the drawstring that extends from the drawstring limiting portion of the slider extending through;

the limiting hole and the drawstring exit of the curtain drawstring mechanism are located on the same side of the drawstring limiting portion of the slider.

15. The curtain drawstring adjustment mechanism of claim 2, wherein surfaces against which the base and the slider are abutted are respectively provided with guide grooves and guide blocks which cooperate with each other to guide the slider to slide linearly.

16. The curtain drawstring adjustment mechanism of claim 3, wherein surfaces against which the base and the slider are abutted are respectively provided with guide grooves and guide blocks which cooperate with each other to guide the slider to slide linearly.

17. The curtain drawstring adjustment mechanism of claim 4, wherein surfaces against which the base and the slider are abutted are respectively provided with guide grooves and guide blocks which cooperate with each other to guide the slider to slide linearly.

18. The curtain drawstring adjustment mechanism of claim 5, wherein surfaces against which the base and the slider are abutted are respectively provided with guide grooves and guide blocks which cooperate with each other to guide the slider to slide linearly.