JP3060251U - Cord winding device - Google Patents

Abstract

(57) [Summary] [Problem] To provide a cord winding device that is convenient to carry without shortening the service life of the cord. A cord winding device according to the present invention includes an upper case (50), a bottom case (10), a rotating seat (30), and a rotating disk (4).
0, is composed of a constant force spring 60 and a fixed shaft seat 20, and the cord is automatically wound into a case composed of an upper case 50 and a bottom case 10 by installing the constant force spring 60; Due to the relatively stable contraction tension provided by the constant force spring 60, the cord is not damaged due to excessive tension and the service life is not shortened. By having a center, the thickness of the case is reduced, making it more portable.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a structure of a kind of a cord winding device, and more particularly, to a device for winding and storing a cord used for connection between communication devices.

[0002]

[Prior art]

 In order to prevent the cords for connecting the communication equipment from being scattered on the floor and entangled with each other during use, a cord winding device is installed, which can take up the cord in the case and store it. Sometimes the cord can be pulled out of the case and used, making it portable. However, most of the conventional cord winding devices achieve the purpose of cord winding by a spiral spring.These devices do not match the tensile force applied to the cord due to the length of the cord pulled out. When pulling out the cord for a very long time, the tensile force increases, resulting in a shortened service life of the cord. Further, since the spiral spring is installed in a coaxial manner, the volume and thickness of the case of the conventional cord winding device become relatively large, which is inconvenient to carry.

[0003]

[Problems to be solved by the invention]

 It is an object of the present invention to provide a kind of cord winding device, which can prevent damage to parts and cords inside a case when the cord is wound or pulled out so that a force and a tension applied to the cord are matched. It is assumed that

[0004] The present invention has as its next object to reduce the volume and thickness of the above-mentioned cord winding device to make it convenient for carrying.

[0005]

[Means for Solving the Problems]

 According to the invention of claim 1, the bottom case 10 is provided with a circular fixing recess 11 in the center of the inner surface, and the fixing recess 11 is provided with a plurality of positioning holes 12 and one cord drawing hole 14. The bottom case 10 and the upper case 50 are provided with a single accommodation chamber 16 and a plurality of fixing holes 18, and a constant force spring 60 is accommodated in the accommodation chamber 16. A circular convex body 52 is formed at the center of the inner surface, and one convex column 54 is provided at an appropriate position. The convex column 54 is inserted into the fixing hole 18 of the bottom case 10. As a result, the upper case 50 and the turntable 40 are circularly formed by the positioning with the bottom case 10 and the side wall provided with one cord lead-out hole 56 provided for the penetration of the cord B. It has a plate-like shape, with A hollow groove 41 is provided on the outer wall of the hollow cylinder 41, and one end of the constant force spring 60 is locked in the lock groove 411. A plurality of rectangular holes 42 and concave holes 43 penetrating through a central portion of the rotary disk 40, and a spring 45, a metal washer 46, and a metal ball 47 are sequentially installed in the concave holes 43. The rotating seat 30 is formed into a columnar body, and has a circular recess 31 on the upper surface thereof to be fitted with a circular convex body 52 on the inner surface of the upper case 50, and the center of the rotating seat 30 on the lower surface of the rotating seat 30. There is a rectangular groove 32 provided laterally passing through the shaft portion, and a plurality of guide grooves 33 are installed in the groove 32 in parallel with the long side of the groove 32, and rotating on both sides of the groove 32 One locking projection symmetrically on the lower surface of the seat 30 The rotary seat 30 and the fixed shaft seat 20 are provided with the rotary seat 30 and the convex block 36 so as to engage with the rectangular holes 42 of the rotary disk body 40. It is installed in a hollow portion in a body 41, has a cylindrical shape, has a hollow portion 21 on the lower surface, and has a plurality of positioning columns 22 which can be fixed in positioning holes 12 on the inner surface of the bottom case 10. A plurality of annular grooves 23 are formed concentrically on the upper surface of the seat 20, and an annular metal conductive piece 24 is installed in each annular groove 23, and the annular metal conductive piece 24 just contacts a spring 45, Fixed recesses 231 are provided symmetrically at four locations on the inner wall of the annular groove 23, and fitted into the fixed recess 231 at positions corresponding to the fixed recesses 231 of the annular metal conductive piece 24. Is formed under the fixed recess 231 in the annular groove 23. The fixed shaft seat 20 is provided with a perforation 232 at a position corresponding to the above, and the two cords A and B are combined so that the cord withdrawal hole 14 of the bottom case 10 and the cord withdrawal of the upper case 50 respectively. The cord A, which is drawn into the case composed of the upper case 50 and the bottom case 10 through the hole 56 and drawn through the code drawing hole 14 of the bottom case 10, is inserted from below the fixed shaft seat 20. After passing through the perforation 232, the end of the lead wire of the cord A is soldered to the protruding edge 241, and the cord B drawn from the cord drawing hole 56 of the upper case 50 enters the groove 32 below the rotary sheet 30. , And a plurality of metal fixing pieces 37 fix the lead end of the cord B in the groove 32, and the metal fixing piece 37 comes into contact with the spring 45, and the two cords A Between conductors B is, spring 45, metal washer 46 was constructed to perform the conductive been connected via the metal balls 47, and a code wound ToSo location.

The invention according to claim 2 is that the metal fixing piece 37 has a substantially L-shape, and a V-shaped notch 371 is provided at a short side end portion thereof, and a lead end of the cord B is provided in the V-shaped notch 371. 2. The cord winding device according to claim 1, wherein the portion is fitted, and the short side portion is inserted into the guide groove 33 of the concave groove 32.

The invention according to claim 3 is that a plurality of grooves 34 are provided in a long side portion of the rotating sheet 30 so as to be used for adjusting the position of the metal fixing piece 37 in the guide groove 33. The cord winding device according to claim 1, which is characterized by the following.

[0008]

[Embodiment of the invention]

 The cord winding device of the present invention is composed of an upper case 50, a bottom case 10, a rotating seat 30, a rotating disk 40, a constant force spring 60 and a fixed shaft seat 20, and the cord is installed by installing the constant force spring 60. The cord is automatically wound into a case constituted by the upper case 50 and the bottom case 10, and a relatively stable contraction tension provided by the constant force spring 60 prevents the cord from being damaged by excessive tension. Since the service life is not shortened and the constant force spring 60 has a center of rotation different from that of the rotating disk body 40, the thickness of the case is reduced, which is convenient for carrying.

[0009]

【Example】

 1 and 2 are an exploded perspective view of the present invention and a perspective view after combination. As shown in these figures, the present invention is composed of an upper case 50, a bottom case 10, a rotating seat 30, a rotating disk 40, a constant force spring 60, and a fixed shaft seat 20. A circular fixed recess 11 is provided at the center of the inner surface of the bottom case 10, and a plurality of positioning holes 12 and one cord drawing hole 14 are provided in the fixed recess 11. The cord outlet 14 is provided to allow the cord A to enter the bottom case 10. Further, a housing chamber 16 and a plurality of fixing holes 18 are provided in the bottom case 10, and the constant force spring 60 is installed in the housing chamber 16.

See also FIG. The upper case 50 is connected to the bottom case 10, a circular convex body 52 is formed at the center of the inner surface of the upper case 50, and one convex column 54 is provided at an appropriate position. Is inserted into the fixing hole 18 of the bottom case 10 to achieve positioning. In addition, one cord lead-out hole 56 is provided in the side wall of the upper case 50, and is used for penetration of the cord B. See also FIGS. 4-6. The turntable 40 is installed between the upper case 50 and the lower case 10. The rotating disk 40 is a circular plate, and has a lower surface provided with a hollow cylindrical body 41 projecting downward, a locking groove 411 provided on an outer wall of the hollow cylindrical body 41, and one end of the constant force spring 60. Is locked. A plurality of rectangular holes 42 and concave holes 43 penetrating through the center of the turntable 40 are provided, and the rectangular holes 42 are used for mounting the rotary seat 30 on the turntable 40. As shown in FIGS. 7 to 10, the rotary seat 30 has a circular recess 31 on the upper surface thereof for fitting with a circular convex body 52 on the inner surface of the upper case 50. As shown in FIGS. A rectangular groove 32 is provided on the lower surface of the groove 32, a plurality of guide grooves 33 are installed in parallel with the long side of the groove 32, and a plurality of guide grooves 33 are provided on two long sides of the groove 32. Are provided. One locking projection 35 and a convex block 36 are provided symmetrically on the lower surface portion of the rotating sheet 30 on both sides of the concave groove 32 so as to engage with the rectangular holes 42 of the rotating disk body 40. . A spring 45, a metal washer 46, and a metal ball 47 are mounted in the concave hole 43 of the rotating disk body 40 in order from the top.

Further, please refer to FIGS. 11 to 13 at the same time. The fixed shaft seat 20 is installed in a hollow portion in a hollow cylindrical body 41 of the rotating disk body 40, has a cylindrical shape, has a hollow portion 21 on a lower surface, and has a positioning hole in an inner surface of the bottom case 10. A plurality of positioning columns 22 which can be fixed in the inside 12 are provided, and a plurality of annular grooves 23 are formed concentrically on the upper surface of the fixed shaft seat 20, and an annular metal conductive piece 24 is installed in each annular groove 23. The annular metal conductive piece 24 just contacts the metal ball 47, and the annular metal conductive piece 24 is stably installed in the annular groove 23 and connected to the cord. Fixing recesses 231 are formed symmetrically at four locations on the inner wall of the inner wall 3, and convex edges 241 fitted into the fixing recesses 231 are formed at positions corresponding to the fixed recesses 231 of the annular metal conductive piece 24. And corresponds to a position below the fixed recess 231 in the annular groove 23. Each perforation 232 is provided in the location, the code A is passed through the perforations 232 from below the fixed shaft seat 20, lead end of the cord A is soldered to the convex edge 241.

See also FIG. 14 to FIG. In the present invention, the two cords A and B are respectively drawn through the cord lead-out hole 14 of the bottom case 10 and the cord lead-out hole 56 of the upper case 50 and are drawn into the case 1, and the cord A drawn through the code lead-out hole 14 is fixed. The end of the lead wire of the cord A is soldered to the protruding edge 241 through the hole 232 through the hollow portion 21 below the shaft seat 20. Further, the cord B drawn through the cord drawing hole 56 is pulled in from the concave groove 32 below the rotating sheet 30, and the lead end of the cord B is fixed in the concave groove 32 by a plurality of metal fixing pieces 37. . The metal fixing piece 37 has a substantially L-shape, and a V-shaped notch 371 is provided at a short side end thereof, and a wire end of the cord B is fitted into the V-shaped notch 371, and the short side is formed. The portion is inserted into the guide groove 33 of the concave groove 32. In addition, the insertion position is opposed to the position of the concave hole 43 of the rotary body 40, and the long side portion thereof is brought into contact with the spring 45 to conduct electricity. A groove 34 is provided in the long side portion of the concave groove 32 so that the user can easily attach the metal groove 37 to adjust the position of the metal fixing piece 37 in the guide groove 33. Further, the concave hole 43 is provided at a position corresponding to the metal conductive piece 24 of the fixed shaft seat 20, so that the conductor between the two cords A and B is connected via the spring 45, the metal washer 46 and the metal ball 47. To achieve the purpose of conduction. The cord B is wound around the outer wall portion of the rotary seat 30 so that an appropriate length can be pulled out from the cord outlet hole 56, whereby the rotary seat 30 and the rotary disc body 40 rotate on the fixed shaft seat 20. At the same time, the constant force spring 60 is wound around the outer wall portion of the hollow cylindrical body 41 of the turntable 40, and preserves the elastic energy of recovery. When winding the cord, the constant force spring 60 contracts toward the storage chamber 16 and the elasticity causes the rotating seat 30 and the rotating disk body 40 to rotate in reverse on the fixed shaft seat 20. B is wound on the rotating sheet 30, thus achieving the purpose of convenient storage and carrying.

[0013]

[Effect of the invention]

 In summary, the cord take-up device of the present invention is designed to prevent damage to parts and cords inside the case when the cord is wound up or pulled out, so that the cord receives the same force and tension. The overall volume and thickness have been reduced, making it portable. Therefore, the present invention can be said to have novelty, inventive step, and industrial value.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of the present invention.

FIG. 2 is a combined perspective view of the present invention.

FIG. 3 is a side sectional view of the upper case of the present invention.

FIG. 4 is a plan view of the turntable of the present invention.

FIG. 5 is a side sectional view of the turntable of the present invention.

FIG. 6 is a bottom view of the turntable of the present invention.

FIG. 7 is a plan view of the rotating seat of the present invention.

FIG. 8 is a bottom view of the rotating seat of the present invention.

FIG. 9 is a side sectional view of the rotating seat of the present invention.

FIG. 10 is another side view of the rotating seat of the present invention.

FIG. 11 is a plan view of the fixed shaft seat of the present invention.

FIG. 12 is a side sectional view of the fixed shaft seat of the present invention.

FIG. 13 is a bottom view of the fixed shaft seat of the present invention.

FIG. 14 is a partial side sectional view after the combination of the present invention.

FIG. 15 is a front view of the metal fixing piece of the present invention.

FIG. 16 is a side view of the metal fixing piece of the present invention.

FIG. 17 is a view showing the installation of the code B of the present invention.

[Explanation of symbols]

 A code B code 1 case 10 bottom case 11 fixing recess 12 positioning hole 14 code pull-out hole 16 accommodation room 18 fixing hole 20 fixed shaft seat 21 hollow portion 22 positioning column 23 annular groove 231 fixing recess 232 perforation 24 metal conductive piece 241 convex edge 30 rotating sheet 31 concave portion 32 concave groove 33 guide groove 34 groove 35 locking projection 36 convex block 37 metal fixing piece 371 V-shaped notch 40 turntable body 411 locking groove 41 hollow cylindrical body 42 rectangular hole 43 concave Hole 45 Spring 46 Metal washer 47 Metal ball 50 Upper case 52 Circular convex body 54 Convex column 56 Cord draw-out hole 60 Constant force spring

Claims (3)

[Utility model registration claims] 1. A bottom case (10) having a circular fixed recess (11) at the center of the inner surface, a plurality of positioning holes (12) and one cord drawing hole (14) provided in the fixed recess (11).
Separately, a single housing chamber 16 and a plurality of fixing holes 18 are provided therein, and the lower case 10 and the upper case 50 in which a constant force spring 60 is housed in the housing chamber 16 are provided. 10, a circular convex body 52 is formed at a central portion of the inner surface, and one convex column 54 is provided at an appropriate position, and the convex column 54 is inserted into the fixing hole 18 of the bottom case 10. As a result, the upper case 50 and the turntable 40 are circularly formed by positioning the bottom case 10 and providing one cord withdrawal hole 56 for penetrating the cord B on the side wall. It has a plate shape, and in the center of the lower surface,
A hollow cylindrical body 41 protruding downward is provided, and a locking groove 411 is provided on an outer wall of the hollow cylindrical body 41.
11, one end of the constant force spring 60 is locked, and a plurality of rectangular holes 42 and concave holes 43 penetrating through a central portion of the turntable 40.
The rotary disk 40 and the rotary seat 30 are provided with a spring 45, a metal washer 46, and a metal ball 47 in this order in the concave hole 43, and are formed into a cylindrical body. There is a circular recess 31 that fits with the circular convex body 52 on the inner surface of the rotating sheet 30.
0, a rectangular groove 3 provided sideways through the central axis portion
2 and a plurality of guide grooves 33 are provided in the groove 32.
2 are provided in parallel with the long sides of the rotary seat 30, and one locking projection 3
5 and a convex block 36 are provided.
2, the rotary seat 30, the fixed shaft seat 20, and the hollow cylindrical body 4 of the rotary disk body 40.
1 is provided in a hollow portion, which has a cylindrical shape, has a hollow portion 21 on the lower surface, and includes a plurality of positioning columns 22 which can be fixed in the positioning holes 12 on the inner surface of the bottom case 10; A plurality of annular grooves 23 are formed concentrically on the upper surface of the ring 20, and an annular metal conductive piece 24 is installed in each annular groove 23.
, Fixed recesses 231 are symmetrically recessed at four places on the inner wall of the annular groove 23, and fitted into the fixed recesses 231 at positions corresponding to the fixed recesses 231 of the annular metal conductive piece 24. The fixed shaft seat 20, in which a projecting edge 241 is formed, and a perforation 232 is provided at a position corresponding to the position below the fixed recess 231 in the annular groove 23. A and B are respectively the cord lead-out hole 14 of the bottom case 10 and the upper case 5
The cord A, which is drawn into the case composed of the upper case 50 and the bottom case 10 through the cord drawing hole 56 of the bottom case 10 and drawn through the code drawing hole 14 of the bottom case 10, is positioned below the fixed shaft seat 20. The lead end of the cord A is soldered to the protruding edge 241 through the perforation 232, and the cord B drawn from the cord drawing hole 56 of the upper case 50 is inserted into the groove 32 below the rotating sheet 30.
The lead end of the cord B is fixed in the groove 32 by a plurality of metal fixing pieces 37, and the metal fixing pieces 37
The cord winding device is configured so as to contact the spring 45 and to conduct between the conductors of the two cords A and B via the spring 45, the metal washer 46, and the metal ball 47. 2. The metal fixing piece 37 has a substantially L-shape, a V-shaped notch 371 is provided at a short side end thereof, and a lead end of a cord B is fitted into the V-shaped notch 371. The cord winding device according to claim 1, wherein the short side portion is inserted into the guide groove 33 of the concave groove 32. 3. A method according to claim 1, wherein a plurality of grooves are provided in a long side portion of said rotating sheet to be used for adjusting a position of said metal fixing piece in said guide groove. 2. The cord winding device according to 1.