Wire-winding device

Patent metadata

Field	Value
Publication number	US-9890013-B2
Application number	US-201414554501-A
Country	US
Kind code	B2
Filing date	Nov 26, 2014
Priority date	Nov 26, 2013
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

Abstract

A wire-winding device comprising: an upper cover; a spiral spring; a rotary base having a groove to accommodate the spiral spring on the bottom surface thereof; a transmission line winding around the rotary base; a lower cover assembled with the upper cover; and a pillar, an outlet, and a wire casing formed on one side of the groove, and two spacers surrounding the peripheral edge of the groove, the pillar having a first end portion which shifts outward to the edge of rotary base, the wire casing having a smooth curved surface formed on the bottom surface thereof near the outlet to enlarge the accommodating space near the outlet and reduce the friction between the transmission line and the spacers.

First claim

What is claimed is:

1. A wire-winding device comprising:
an upper cover;
a spiral spring;
a rotary base having a groove to accommodate the spiral spring on a bottom surface thereof and two spacers at a periphery thereof, the groove including a wire casing;
a transmission line winding around the rotary base;
a lower cover assembled with the upper cover; and
a pillar and an outlet formed on one side of the groove, the pillar having a first end portion which shifts outward to the periphery of the rotary base, the wire casing having a smooth curved surface formed on the bottom surface near the outlet to enlarge the accommodating space near the outlet and reduce the friction between the transmission line and the spacers.

2. The wire-winding device as claimed in claim 1 , further having a decorative piece, and wherein the upper cover has a circular groove formed on the upper surface, and the decorative piece is accommodated in the circular groove of the upper cover.

3. The wire-winding device as claimed in claim 1 , further having an elastic positioning element having a base and a positioning part protruding from the lower surface of the base, the base having an elastic part and a respective fixed part at each of two ends thereof, the height of the elastic part being lower than the height of the fixed parts.

4. The wire-winding device as claimed in claim 3 , wherein the upper cover has a slot deviating from a center of the lower surface thereof, the rotary base has an annular track on the upper surface thereof, the annular track and the slot of the upper cover constitute an orbit, the elastic positioning element being moveable along the orbit in response to a rotational movement of the rotary base.

5. The wire-winding device as claimed in claim 4 , wherein the lower cover has a circular column in the center thereof, the circular column has a groove on one side thereof, the lower cover has a protruding cylinder and a concave hole at each side thereof.

6. The wire-winding device as claimed in claim 5 , wherein the spiral spring has a first end portion and a second end portion, the second end portion is bent into a semicircle, the first end portion is received in the groove of the lower cover, and the second end portion surrounds the pillar of the rotary base.

7. The wire-winding device as claimed in claim 6 , wherein the upper cover has a terraced through hole in the center thereof, the upper cover has a protruding cylinder and a concave hole at each of the two sides thereof.

8. The wire-winding device as claimed in claim 7 , wherein the wire-winding device further having a screw screwed in the circular column of the lower cover through the through hole of the upper cover.

9. The wire-winding device as claimed in claim 8 , wherein the protruding cylinder and the concave hole of the upper cover are assembled to the concave hole and the protruding cylinder of the lower cover, respectively.

10. The wire-winding device as claimed in claim 1 , wherein one end of the transmission line 7 is lightning connector and the other end is USB connector.

11. A wire-winding device assembly comprising:
cover means defining a receiving space;
a rotary base assembled to the cover means and disposed in the receiving space in a rotatable manner;
a spiral spring having two sections fastened to said cover means and said rotary base, respectively, so as to constantly urge the rotary base to move back to an original position;
an annular track formed in the rotary base and defining a latching position thereof;
a positioning element associated with said cover means and including a guiding protrusion moving along said annular track and to resist backward rotation of the rotary base when the guiding protrusion is moved to said latching position; and
a transmission wire winding around the rotary base; wherein
said rotary base forms a cylindrical structure with a spacer on an exterior surface thereof to divide the transmission wire into upper and lower levels;
one end of the transmission wire extends out of the cover means via the upper level while the other end of the transmission wire extends out of the cover means via the lower level;
the rotary base forms a curved wire space inside the cylindrical structure, and an inner section of the transmission wire is received in the curved wire space;
the rotary base forms a smoothly curved surface in a vertical direction around an outlet beside the curved wire space so as to regulate extension of the transmission wire from the curved wire space to one of the upper levels and the lower levels on the exterior surface without substantial friction;
said outlet is formed between the cylindrical structure and a pillar to which the spiral spring is secured; and
the spacer includes a first part and a second part, the first part is located upon a half of the exterior surface, and the second part cooperates with the pillar and is located on the other half of the exterior surface, said second part being smaller than the first part in a spanning range.

12. The wire-winding device assembly as claimed in claim 11 , wherein the cylindrical structure and the pillar form corresponding thickened bulged surfaces facing to each other beside the outlet.

13. The wire-winding device assembly as claimed in claim 11 , wherein the transmission wire includes an inner section formed around a one half length position thereof and located within a wire space formed inside the cylindrical structure, two opposite ends of said inner section leave away from the wire space at the upper level and the lower level, respectively.

Assignees

• Foxconn Interconnect Technology Ltd

Inventors

• Chen Chi Ming
• Zhou Feng
• Yang kai feng

Classifications

• B65H75/48 Primary

  Automatic re-storing devices · CPC title

• B65H75/4434

  actuated by pulling on or imparting an inclination to the material · CPC title

• B65H2701/3919

  USB, earphones, audio or video cables, e.g. for connecting small electronic devices such as MP3 players or mobile telephones · CPC title