TW201544438A - Cable winding device - Google Patents

Abstract

A cable winding device includes a shaft, a external barrel and an internal barrel. The shaft includes a shank and a head formed at one end of the shank. The head defines a notch in a lateral surface thereof. The shank includes a threaded portion at an end away from the head. The external barrel defines a through hole extending along a lengthwise direction, and a slot in a lateral surface. The slot communicates with the slot. The shaft is rotatably received in the external barrel. The shank is received in the through hole. The internal barrel includes a inner threaded portion that is engaged with the threaded portion of the shank. The internal barrel defines a groove extending along a direction the same with the extending direction of the slot. The groove is located under the slot. The internal barrel is received in the through hole, and is rotatable with the external barrel.

Description

Winding device

The invention relates to a winding device.

A headset is one of the accessories for a portable electronic device such as a mobile phone. The headphones may become entangled during storage.

In view of the above, it is necessary to provide a winding device capable of forming a part of a cable into a spiral shape.

A winding device comprising a bobbin, further comprising an outer cylinder and an inner cylinder, the winding shaft comprising a rod portion and a head portion at one end of the rod portion, the side surface of the head portion being formed with a first groove, the first groove The bottom portion is flush with the side surface of the rod portion, and the side portion of the rod portion is formed with an external thread at an end away from the head portion, the outer tube includes a receiving hole, and the side surface of the outer tube is formed with a second communicating with the receiving hole a groove connected to the outer cylinder and rotatable relative to the outer cylinder, the rod portion being received in the receiving hole, the inner cylinder comprising an internal thread cooperating with the external thread, the outer side surface of the inner cylinder being formed a third recess extending in the same direction as the second recess, the third recess being located below the second recess, the inner cylinder being located in the receiving hole, the inner cylinder being capable of As the outer cylinder rotates together and can move in an axial direction relative to the outer cylinder, when the second groove is aligned with the first groove, one end of a cable can be worn from one end of the first groove Passing through the third groove and finally from one end of the second groove, the outer tube and the winding After rotation occurs, the inner cylinder with respect to the rotation of the bobbin, the end of the third side surface of a groove of the cable pushing movement, such that a portion of the cable and forming a spiral wound on the stem.

The winding device of the present invention can form a part of the cable into a spiral shape, and the spiral portion is plastically deformed by heating, so that a part of the cable becomes a coil spring wire, and the overall length of the cable is shortened, which is advantageous. To prevent cables from being entangled during storage because they are too long.

Figure 1 is an exploded view of the winding device of the present invention.

Figure 2 is a perspective view of the winding device of the present invention.

Figure 3 is a perspective cross-sectional view of the winding device of the present invention.

Figure 4 is a cross-sectional view of the winding device of the present invention taken along line IV-IV of Figure 2;

Referring to FIGS. 1-2, the winding device 100 includes a bobbin 10, an outer cylinder 20, and an inner cylinder 30. The bobbin 10 includes a rod portion 11 and a head portion 12 at one end of the rod portion 11, and a side surface 121 of the head portion 12 A first groove 122 is formed, and the bottom of the first groove 122 is flush with the side surface 111 of the rod portion 11. An external thread 113 is formed on a side surface 111 of the rod portion 11 at a distal end 112 away from the head portion 12.

The outer cylinder 20 includes a receiving hole 21 (not visible in FIG. 4 ), and the outer side surface 22 of the outer cylinder 20 is formed with a second recess 23 communicating with the receiving hole 21 . The second groove 23 extends from one end to the other along the length direction of the outer cylinder 20. The bobbin 10 is coupled to the outer cylinder 20 and rotatable relative to the outer cylinder 20. In the present embodiment, the outer cylinder 20 is open at one end and the bottom end 24 is the other end. The bottom portion 24 is provided with a through hole 241.

Referring to FIGS. 3-4, a connecting piece 40 is used to connect the bobbin 10 to the outer cylinder 20. The connecting piece 40 includes a base portion 41 and a protruding portion 42 projecting from the base portion 41. The protruding portion 42 is received in the through hole 241 of the bottom portion 24, and the protruding portion 42 is fixed to the end 112 of the bobbin 10 by screws. The protrusion 42 has a size smaller than the diameter of the through hole 241 so as not to affect the rotation of the bobbin 10 relative to the outer cylinder 20. The base portion 41 is in contact with the outer side of the bottom portion 24 around the annular portion of the projection portion 42, so that the bobbin 10 can be prevented from being detached from the outer cylinder 20.

In the present embodiment, the inner cylinder 30 includes an internal thread 31 that cooperates with the external thread 113. The outer side surface 32 of the inner cylinder 30 is formed with a third recess 33 along the third recess 33. The length direction extends from one end to the other. The inner tube 30 is located in the receiving hole 21, and the third groove 33 is located below the second groove 23, and extends in the same direction as the second groove 23. The inner cylinder 30 is rotatable together with the outer cylinder 20 and is movable relative to the outer cylinder 20 in an axial direction (i.e., the longitudinal direction of the outer cylinder). In the embodiment, the inner tube 30 further includes a protrusion 34 protruding from the outer side surface 32. The inner surface of the outer tube 20 is provided with a sliding slot 25, and the protruding block 34 is received in the sliding slot 25 and can be along The chute 25 slides. The width of the bump 34 is slightly smaller than the width of the chute 25. When the outer cylinder 20 is rotated, the side wall of the chute 25 applies a thrust to the projection 34, so that the inner cylinder 30 rotates together with the outer cylinder 20. Due to the cooperation between the external thread 113 and the internal thread 31, the rotation of the inner cylinder 30 causes its movement relative to the bobbin 10 along the length of the bobbin 10.

In use, the outer cylinder 20 is first rotated to align the first groove 122 and the second groove 23, and then one end of the cable 200 can be inserted from one end of the first groove 122 through the third groove. 33. Finally, the end of the second recess 23 is passed out to keep the cable 200 in a straightened state. Thereafter, the outer cylinder 20 is rotated and rotated, and the end 35 of one side of the third recess 33 pushes the cable 200 such that a portion of the cable 200 moves together with the end 35. Since the trajectory of the end 35 is a spiral around the axis of the bobbin 10, a part of the cable 200 will be spirally wound around the shank 11. Thereafter, the winding device 100 and the cable 200 can be placed together in a heating device, and the spiral portion of the cable 200 wound around the rod portion 11 is plastically deformed after the heating reaches a predetermined temperature for a predetermined time. . After the temperature of the winding device 100 and the cable 200 is restored to normal temperature, the winding device 100 and the cable 200 are taken out, then the connecting piece 40 is removed and the inner tube 30 is separated from the bobbin 10, and finally the cable 200 is removed. Separated from the bobbin 10. At this time, a part of the cable 200 is a spring spiral having a certain elasticity, so that the overall length of the cable 200 becomes small, thereby facilitating prevention of the cable 200 being entangled because the length is too long.

100‧‧‧Winding device

200‧‧‧ cable

10‧‧‧winding shaft

11‧‧‧ pole

111‧‧‧ side

End of 112‧‧‧

113‧‧‧ external thread

12‧‧‧ head

121‧‧‧ side

122‧‧‧First groove

20‧‧‧Outer tube

21‧‧‧ receiving holes

22‧‧‧Outside

23‧‧‧second groove

24‧‧‧ bottom

241‧‧‧through hole

25‧‧‧Chute

30‧‧‧Inner tube

31‧‧‧ internal thread

32‧‧‧Outside

33‧‧‧ third groove

34‧‧‧Bumps

End of 35‧‧‧

40‧‧‧Connecting piece

41‧‧‧ base

42‧‧‧Protruding

no

100‧‧‧Winding device

10‧‧‧winding shaft

11‧‧‧ pole

111‧‧‧ side

End of 112‧‧‧

113‧‧‧ external thread

12‧‧‧ head

121‧‧‧ side

122‧‧‧First groove

20‧‧‧Outer tube

22‧‧‧Outside

23‧‧‧second groove

24‧‧‧ bottom

241‧‧‧through hole

30‧‧‧Inner tube

32‧‧‧Outside

33‧‧‧ third groove

40‧‧‧Connecting piece

Claims (3)

A winding device comprising a bobbin, the improvement comprising: an outer cylinder and an inner cylinder, the winding shaft comprising a rod portion and a head portion at one end of the rod portion, the side surface of the head portion being formed with a first groove, the first a bottom of a groove is flush with a side surface of the rod portion, and an outer thread is formed on an end of the rod portion away from the head portion, the outer tube includes a receiving hole, and a side surface of the outer tube is formed with the receiving hole a second groove connected to the outer cylinder and rotatable relative to the outer cylinder, the rod portion being received in the receiving hole, the inner cylinder comprising an internal thread cooperating with the external thread, the inner cylinder a third groove is formed on the outer side surface, the third groove and the second groove extend in the same direction, the third groove is located below the second groove, and the inner tube is located in the receiving hole. The inner cylinder can rotate together with the outer cylinder and can move along an axial direction relative to the outer cylinder. When the second groove is aligned with the first groove, one end of a cable can be from the first concave One end of the slot penetrates, passes through the third groove, and finally passes out from one end of the second groove, After the barrel and the bobbin rotate, the inner cylinder rotates relative to the bobbin, and the end of one side of the third groove pushes the cable to move, so that a part of the cable forms a spiral and is wound around the rod on. The winding device of claim 1, further comprising a connecting piece fixed at an end of the rod portion away from the head, the connecting piece being in contact with the end of the outer tube, thereby The bobbin is prevented from coming off the outer cylinder. The winding device of claim 1, wherein the inner cylinder further comprises a protrusion protruding from an outer side thereof, the inner surface of the outer cylinder is provided with a sliding slot, and the protruding block is received in the sliding slot And can slide along the chute.