Patent
Apparatus for tightening string
| العنوان: | Apparatus for tightening string |
|---|---|
| Patent Number: | 11602,200 |
| تاريخ النشر: | March 14, 2023 |
| Appl. No: | 16/645050 |
| Application Filed: | July 02, 2018 |
| مستخلص: | The present invention discloses a string tightening device that can easily adjust the characteristics of the string, such as the length or tension of the string used in various wearing products or household items, including shoes, bags, clothing, and the like. A string tightening device of the present invention includes: a base having a space therein and including a first projection portion; a lower rotation member that is disposed in the base and moves a predetermined distance in a direction of separation from the base or the opposite direction thereof, an upper rotation member coupled to the lower rotation member, including a second locking portion corresponding to the first locking portion, and rotating only in one direction when the first locking portion and the second locking portion are closely attached; and an inner housing portion provided in the lower rotation member or the upper rotation member and wound therearound. |
| Inventors: | Kim, Sug Whan (Gimpo-si, KR) |
| Claim: | 1. A string tightening device comprising: a base where a first locking portion is provided; a lower rotation member that is disposed in the base and moves a predetermined distance in a direction of separation from the base or the opposite direction thereof; and an upper rotation member coupled to the lower rotation member, including a second locking portion corresponding to the first locking portion, and rotating only in one direction when the first locking portion and the second locking portion are closely attached, wherein the lower rotation member or the upper rotation member is provided with an inner housing portion where a string is wound, wherein the base and the upper rotation member comprise a rotation unit position adjusting portion provided in a portion where the base and the upper rotation member face each other and configured to maintain the first locking portion and the second locking portion in a closely attached state or in a separated state, wherein the rotation unit position adjusting portion is formed of a first protrusion portion provided in the base and a second protrusion portion provided in the upper rotation member to be adjacent to the first protrusion portion, wherein the base comprises an outer housing portion formed in the shape of a cylinder and the outer housing portion is provided with a first projection portion that is concave along an internal circumferential direction of a lower end portion thereof, wherein the lower rotation member comprises a second projection portion which is caught by the first projection portion and thus of which movement is limited to a predetermined distance or less in a direction parallel to a rotation axis of the lower rotation member, wherein the first projection portion has a first surface facing a second surface of the second projection portion, and wherein the upper rotation member is configured to move away from the base in the direction parallel to the rotation axis and the second protrusion portion is configured to go over the first protrusion portion, thereafter the first surface of the first projection portion and the second surface of the second projection portion contact to each other and unwinding state is maintained. |
| Claim: | 2. The string tightening device of claim 1 , wherein the first protrusion portion is formed in an outer direction along an external circumferential surface of the base, and the second protrusion portion is formed along an internal circumferential surface of the upper rotation member, facing the external circumferential surface of the base when the upper rotation member is disposed while surrounding a part of the external circumferential surface of the base. |
| Claim: | 3. The string tightening device of claim 1 , wherein the first locking portion is formed of an elastic latch or a plurality of protection portions, and the second locking portion is formed of another projection portion or elastic latch caught by the elastic latch or the plurality of projection portions of the first locking portion. |
| Claim: | 4. The string tightening device of claim 3 , wherein the first locking portion is formed of the elastic latch which is formed of an elastic body and of which one end is a free end, and the second locking portion is formed of the projection portion which is formed in the shape of gear teeth arranged at a regular interval along the circumferential direction. |
| Claim: | 5. The string tightening device of claim 4 , wherein the elastic latch extends from one end of the base and an elastic force is applied in a direction facing one side of the upper rotation member, and the projection portion is formed in a side of the upper rotation member, facing the elastic member, and forms an inclined surface such that the upper rotation member rotates only in one direction when the free end portion of the elastic latch is closely attached. |
| Claim: | 6. The string tightening device of claim 1 , wherein the base comprises: a coupling extension portion extending in a radial direction from the outer housing portion. |
| Claim: | 7. The string tightening device of claim 6 , wherein the coupling extension portion is formed of a synthetic resin and is coupled to footwear by sewing or an adhesive. |
| Claim: | 8. The string tightening device of claim 1 , wherein the outer housing portion comprises a first string penetration hole portions through which the string passes while penetrating a wall surface. |
| Claim: | 9. The string tightening device of claim 8 , wherein the outer housing portion comprises a string guide portion provided at the periphery of the first string penetration hole portion and prevents the string from interfering with the upper rotation member. |
| Claim: | 10. The string tightening device of claim 1 , wherein the lower rotation member comprises: a plate portion; and an inner housing portion provided in the shape of a cylinder in the plate portion. |
| Claim: | 11. The sting tightening device of claim 10 , wherein the inner housing portion comprises a second string penetration hole portion in which a groove is provided at a wall surface thereof such that the string passes therethrough. |
| Claim: | 12. The string tightening device of claim 1 , wherein the lower rotation member comprises a plurality of first fitting coupling portions, and the upper rotation member comprises second fitting coupling portions coupled to the first fitting coupling portions. |
| Claim: | 13. The string tightening device of claim 1 , wherein the upper rotation member is integrally formed with a string engaging portion to which the string is fixed. |
| Claim: | 14. The string tightening device of claim 13 , wherein, when a portion of the string engaging portion, coupled to the upper rotation member, is a fixed end and an opposite side thereof is a free end, the string engaging portion is formed in a shape of a taper of which a diameter of the free end is decreased, and comprises at least one third string penetration hole portion through which the string passes. |
| Claim: | 15. The string tightening device of claim 1 , wherein the lower rotation member is integrally formed with the inner housing portion. |
| Claim: | 16. The string tightening device of claim 1 , wherein the inner housing portion comprises a roof blocking an upper side and a side wall having a slot hole through which the string is inserted or tied up, the string is wound around the inner housing portion, and the inner housing portion and the upper rotation member are coupled by an engaging member. |
| Claim: | 17. The string tightening device of claim 6 , wherein the coupling extension portion comprises a fourth string penetration hole portion formed in the shape of a divided groove in a portion thereof. |
| Claim: | 18. The string tightening device of claim 6 , wherein the coupling extension portion extends from a middle portion of an external circumferential surface of the outer housing portion while maintaining a constant distance from the bottom surface with reference to the entire height of the outer housing portion. |
| Claim: | 19. The string tightening device of claim 1 , wherein the base is formed of a pillar portion and a coupling extension portion, and the pillar portion and the coupling extension portion are coupled by an engaging portion. |
| Claim: | 20. The string tightening device of claim 1 , further comprising a string engaging portion provided with at least one third string penetration hole portion through which the string is inserted, wherein the upper rotation member is fixed to the string engaging portion through screw-coupling. |
| Claim: | 21. The string tightening device of claim 1 , further comprising a string engaging portion provided with at least one third string penetration hole portion through which the string is inserted, wherein the upper rotation member is fit-coupled with the string engaging portion, and a fitting member that closes the string engaging portion is coupled to an upper portion of the upper rotation member. |
| Claim: | 22. The string tightening device of claim 1 , wherein the lower rotation member is integrally formed with a second fitting coupling portion, and the second fitting coupling portion is fit-coupled to an upper rotation member. |
| Claim: | 23. The string tightening device of claim 19 , wherein the base comprises a bottom surface that forms a coupling extension portion or a closed portion facing the lower rotation member. |
| Patent References Cited: | 9629417 April 2017 Cavanagh 10512305 December 2019 Omarsson 20050081339 April 2005 Sakabayashi 20080060167 March 2008 Hammerslag 20100139057 June 2010 Soderberg 20110167543 July 2011 Kovacevich 20160198801 July 2016 Kim 2016-520401 July 2016 20-2010-0009337 September 2010 10-0986674 October 2010 10-1025134 March 2011 10-1707484 February 2017 2014-197721 February 2015 2018155732 August 2018 |
| Primary Examiner: | Upchurch, David M |
| Attorney, Agent or Firm: | Lex IP Meister, PLLC |
| رقم الانضمام: | edspgr.11602200 |
| قاعدة البيانات: | USPTO Patent Grants |
| الوصف غير متاح. |