Coil cord holder

Abstract

To provide a curl cord holder that facilitates removal and installation of a curl cord and does not apply a load to the curl cord.SOLUTION: A curl cord holder includes a pair of holding portions that can be opened and closed in a direction that intersects the spiral stretching direction of a curl cord, and at least a pair of plate-like projections erected on opposing surfaces of the pair of holding portions and holding the curl cord, and the pair of plate-like projections are rotationally symmetrical with respect to the direction of spiral extension of the curl cord.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a curl cord holder for holding a curl cord.

Background Art

[0002] As a curl cord, for example, a cord body formed by winding a plastic cord in a coiled shape, that is, applying a curl to be stretchable, is known. As a curl cord holder for holding a curl cord, Patent Document 1 describes an organizing holder that can functionally hold small accessories around the body and small tools for work.

[0003] Also, as a curl cord, a curl electric cord of a plastic-coated conducting wire is known. Patent Document 2 describes a curl cord holder for a telephone fixture in which the curl cord does not hang down due to its own weight and is not thrown out around.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the case of the technology disclosed in Patent Document 1, since the structure is such that the curl cord is completely covered with a pipe or the like, there is a problem that removal and incorporation are not easy. Also, when incorporating the curl cord inside the pipe, there is a problem that a load is generated on the curl cord, leading to deterioration of the curl cord.

[0006] Also, in the case of the prior art described in Patent Document 2, in order to hold the coiled cord through the ring at the tip of the jig for the telephone set, the ring causes a load on the coiled cord, leading to problems such as disconnection and deterioration of the coiled cord.

[0007] The present invention has been made in view of the above problems of the prior art, and an object thereof is to provide a coiled cord holder that allows easy removal and incorporation of the coiled cord and does not apply a load to the coiled cord.

Means for Solving the Problems

[0009] This The coiled cord holder of the invention has a pair of holding parts that can be opened and closed in a direction intersecting the spiral expansion and contraction direction of the coiled cord, and at least a pair of protrusions that are erected on the opposing surfaces of the pair of holding parts and hold the coiled cord. The pair of protrusions are arranged at positions on the opposing surfaces such that the pair of protrusions intervene in the gaps of the spiral portions of the coiled cord when the pair of holding parts are in the closed state.

Effects of the Invention

[0010] According to the coiled cord holder of the present invention, by erecting plate-like protrusions along the cord on the pair of holding parts, the coiled cord can be held without damaging the coiled cord and without applying a load to the cord, and an effect can be expected in countermeasures against disconnection. In addition, since it can be made into a small-sized holder that can be easily opened and closed, it becomes a coiled cord holder that can be easily changed in the mounting location.

Brief Description of the Drawings

[0011]

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Mode for Carrying Out the Invention

[0012] Hereinafter, the curl cord holder according to the embodiment of the present invention will be described with reference to the drawings. In the embodiment, components having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted.

Embodiment

[0013] (First Embodiment) (Description of the Configuration) FIG. 1 is a perspective view conceptually showing a state in which a coiled cord 11 electrically connects a telephone main body 12 and a handset 13, and a coiled cord holder 14 according to the first embodiment of the present invention holds the middle part of the coiled cord 11 in a sandwiched manner. FIG. 2 is an enlarged partial perspective view of a spiral portion HP of a part of the coiled cord 11. FIG. 3 is a perspective view showing the coiled cord holder 14 of this embodiment. FIG. 4 is a perspective view showing a state in which the coiled cord holder 14 of this embodiment holds the coiled cord 11. FIG. 5 is a side view showing a state in which the coiled cord holder 14 of this embodiment holds the coiled cord 11. FIG. 6 is a cross-sectional view taken along the line A-A of FIG. 5 as viewed from the front of the coiled cord holder 14 of this embodiment. In the figures after FIG. 2, the vertical, horizontal, and front-rear directions are shown as orthogonal axes.

[0014] As shown in FIG. 1, a coiled cord 11, which is an example of an object to be held in this embodiment, is a connection cord that connects the telephone main body 12 and the handset 13. When the handset 13 is not in use, the coiled cord 11 is held by the coiled cord 11 and kept short. However, when using the handset 13, the coiled cord 11 is released (opened) by a finger (not shown) of the hand and can be used in a telescopic manner.

[0015] The coiled cord holder 14 of this embodiment is physically fixed to the side surface of the telephone main body 12, for example, by adhesion for connection. The position for fixing the coiled cord holder 14 is preferably a portion on the outer surface of the telephone main body 12 near the handset 13 that does not get in the way. In addition to the side surface of the main body, for example, the upper surface of the main body can be considered.

[0016] As shown in Fig. 2, the coiled cord 11 includes a helical portion HP except for the connector (not shown) portions of the telephone set main body and the handset at both ends, and is stretchable in its longitudinal direction (helical expansion / contraction direction HD). The helical portion HP of the coiled cord 11 has a right-handed curl with a basic helical portion pitch LP (the minimum pitch in the contracted state of the coiled cord 11, which is approximately equal to the width W of the coiled cord), and the helical portion pitch becomes longer according to the usage state.

[0017] As shown in Fig. 3, the coiled cord holder 14 of this embodiment, in its closed state, consists of a pair of holding portions Ka and Kb and has a shape of a substantially rectangular cylindrical body with openings on the left and right, and has a hinge portion HG and a latch portion RT at both upper and lower ends of the holding portion Ka on the front portion.

[0018] That is, the coiled cord holder 14 has a pair of holding portions Ka and Kb that can be opened and closed in a direction CD (front-rear direction) intersecting the helical expansion / contraction direction HD of the coiled cord 11 shown in Fig. 4, and these have a hinge portion HG and a latch portion RT at both ends intersecting the helical expansion / contraction direction HD of the coiled cord 11. The coiled cord holder 14 is configured such that the holding portions Ka and Kb can be opened and closed around the hinge portion HG according to the operation of the latch portion RT.

[0019] As shown in FIG. 3, each of the pair of holding portions Ka and Kb has a pair of thin plate-like protrusions BPa and BPb that stand on the opposing surfaces FSa and FSb and hold the curled cord 11. Each of the plate-like protrusions BPa and BPb is tapered toward the tip, and has a shape that easily enters between the cords. As shown in FIG. 5, the dimensions (spacing) in the front-rear direction of the opposing surfaces FSa and FSb of the pair of holding portions Ka and Kb are larger than the diameter of the spiral portion HP of the curled cord 11. The pair of plate-like protrusions BPa and BPb have a height H (each height from the opposing surfaces FSa and FSb) such that their tips BPaT and BPbT do not hit the tips BPaT and BPbT of the pair of opposing plate-like protrusions BPa and BPb when the pair of holding portions Ka and Kb are in the closed state. That is, when the tips BPaT and BPbT of the pair of plate-like protrusions BPa and BPb are in positions facing each other (closed state) so as not to sandwich the curled cord 11 therebetween, the tips BPaT and BPbT are configured to be separated by a distance exceeding the cord width W of the curled cord 11.

[0020] As shown in FIGS. 4 and 6, the plate-like protrusions BPa and BPb are arranged at positions on the opposing surfaces FSa and FSb so as to intervene in the gap GP of the spiral portion HP of the curled cord 11 when the holding portions Ka and Kb are in the closed state.

[0021] As shown in FIG. 6, the holding portion Kb has a further parallel plate-like protrusion BPc (having the same shape as the plate-like protrusion BPb) that is separated from the plate-like protrusion BPb by a distance W2 (≧W) equal to the cord width W of the curled cord 11 on the opposing surface FSb. That is, the spacing between the plate-like protrusions BPb and BPc is, for example, a dimension equal to or greater than the cord width (diameter) of the curled cord 11. Further, the plate-like protrusions BPb and BPc are parallel plate-like protrusions having an inclination angle θ2 (≧θP) that is substantially equal to the pitch angle θP (the minimum pitch angle θP in the state where the curled cord 11 is contracted) of the spiral portion HP of the curled cord 11 with respect to the spiral expansion / contraction direction HD of the curled cord 11.

[0022] As shown in Fig. 6, since the pair of plate-like protrusions BPa and BPb are formed to be rotationally symmetric with respect to each other in the helical expansion and contraction direction HD of the coiled cord 11, the plate-like protrusion BPa also has an inclination angle θ2 (≥θP) equivalent to the pitch angle θP of the coiled cord 11.

[0023] In this way, in accordance with the helical angle of the coiled cord 11, plate-like protrusions BPa and BPb are added to the upper and lower parts of the holder, and the coiled cord 11 fits into the gap GP between the plate-like protrusions BPa and BPb, resulting in a structure that can hold the coiled cord 11 without damaging it.

[0024] Also, as shown in Fig. 3, the back side of the coiled cord holder 14 (the back of the holding part Kb) has a smooth shape, and it can be attached to the telephone main body 12 (see Fig. 1) using double-sided tape or the like on its back. Further, a hole (not shown) may be opened in the central part of the back side of the holder, and it may also be structured to be fastened to the telephone main body 12 (see Fig. 1) with screws. That is, a part of the holding part Kb on the back of the coiled cord holder 14 functions as a connection part CS for physical fixation.

[0025] The coiled cord holder 14 is an integrally molded body in which a pair of holding parts Ka and Kb (including the hinge part HG and the latch part RT, the plate-like protrusions BPa, BPb, and BPc) are integrally formed of the same material by injection molding.

[0026] The hinge part HG of the coiled cord holder 14 is formed as a thin band-shaped living hinge made of an integrally molded resin that can be bent without breaking. The hinge part HG enables the holding part Ka that can be repeatedly opened and closed to be used as a lid. As the integrally molded resin, for example, PP (polypropylene), PE (polyethylene), etc., which can flow sufficiently to the thin hinge part HG and have the strength to withstand multiple bending movements, may be used.

[0027] The latch portion RT of the curl cord holder 14 swings the holding portion Ka outward around the hinge portion HG so that the curl cord 11 can be held. When closing the holding portion Ka, the hook of the knob portion of the latch portion RT at the lower end of the holding portion Ka is caught and fixed to the opening edge portion of the wall portion below the holding portion Kb. When opening the holding portion Ka, when the knob portion of the latch portion RT is pushed upward, the hook of the knob portion disengages from the opening edge portion, and the holding portion Ka can be opened. In this case, since the knob portion of the latch portion RT is bent into a U-shaped cross section, the required amount of bending of the knob portion can be ensured in a very small space.

[0028] With the above configuration, in the open state of the curl cord holder 14, when the curl cord 11 is placed on the plate-shaped protrusion BPb and the holding portion Ka is gently pushed in, the curl cord 11 elastically deforms and fits and locks into the plate-shaped protrusions BPa and BPb and is held as it is. That is, since an appropriate holding force acts between the side surfaces of the plate-shaped protrusions BPa and BPb, stable fixation and holding of the curl cord are possible. This held state (closed state) can easily release the fixation of the curl cord 11 by opening the latch portion RT of the curl cord holder with a finger (not shown).

[0029] (Description of operation) (Attachment of curl cord) Figs. 7 to 9 are perspective views showing the attachment operation of the curl cord 11 by opening the curl cord holder 14 of the present embodiment. First, as indicated by the white arrow in Fig. 7, by pushing the knob portion of the latch portion RT of the curl cord holder 14 with a finger (not shown), the lock of the latch portion RT is released.

[0030] Next, while pushing the knob portion of the latch portion RT with a finger (not shown) as indicated by the white arrow in Fig. 8, the knob portion can be lifted upward to open the holding portion Ka.

[0031] Next, as shown in Fig. 9, the spiral portion HP of the curl cord 11 is fitted along the plate-shaped protrusions BPb and BPc of the holding portion Kb.

[0032] Next, while taking care not to pinch the curling cord 11 between the plate-like protrusions BPa and BPb of the holding parts Ka and Kb, close the holding part Ka. As a result, the knob part of the curling cord holder 14 is locked, and the state shown in FIG. 4 is achieved, enabling the curling cord holder 14 to hold the curling cord 11.

[0033] (Removal of the curling cord) The curling cord 11 can be removed from the curling cord holder 14 by following the reverse procedure of the above-described attachment of the curling cord 11.

[0034] (Explanation of the effect) According to the first embodiment as described above, by holding with the plate-like protrusions BPa and BPb that match the spiral angle of the curling cord 11, there is an effect that the curling cord 11 can be held without applying a load to it.

[0035] In this embodiment, a structure is provided in which the entire curling cord 11 can be held by holding a part of the curling cord 11 with the plate-like protrusions BPa and BPb provided on the curling cord holder 14.

[0036] Also, it has a structure that can be easily attached and detached by operating the knob part of the curling cord holder 14 with a finger (not shown) of the hand.

[0037] In the prior art, since the curling cord was completely covered, there were problems with detachability and maintainability. However, by using this embodiment, effects such as reduction of the attachment / detachment time and easy maintenance can be obtained.

[0038] Regarding the use environment as well, by making the back surface of the curling cord holder 14 flat and having holes, double-sided tape, screws, etc. can be used, so it can be installed in various places.

[0039] Since the curl cord holder 14 of this embodiment is configured as described above, fixing and releasing can be performed very easily and reliably without imposing a burden on the curl cord 11. Further, since the curl cord holder 14 is an injection molded product, cost reduction can be achieved.

[0040] (Modification example) FIG. 10 is a cross-sectional view similar to the cross-sectional view taken along the line A-A of FIG. 5 as viewed from the front of the curl cord holder 14 of the first modification example of this embodiment.

[0041] This modification example is the same as the first embodiment except that the further plate-shaped protrusion BPc provided on the opposing surface F Sb of the holding portion Kb shown in FIGS. 3, 4, and 6 of the first embodiment is omitted.

[0042] According to this modification example, even with only the pair of thin plate-shaped protrusions BPa and BPb of the pair of holding portions Ka and Kb, fixing and releasing can be performed very easily and reliably without imposing a burden on the curl cord 11, contributing to the reduction of the injection molding material of the curl cord holder 14 and achieving cost reduction.

[0043] FIG. 11 is a cross-sectional view similar to the cross-sectional view taken along the line A-A of FIG. 5 as viewed from the front of the curl cord holder 14 of the second modification example of this embodiment.

[0044] This modification example is the same as the first embodiment except that, in addition to the configuration shown in FIGS. 3, 4, and 6 of the first embodiment, as shown in FIG. 11, a parallel further plate-shaped protrusion BPd (having the same shape as the plate-shaped protrusion BPa) is provided on the opposing surface F Sa of the holding portion Ka at a distance W2 (≧W) equal to the cord width W of the curl cord 11 from the plate-shaped protrusion BPa.

[0045] According to this modification example, with the added plate-shaped protrusion BPd of the holding portion Ka, reliable holding of the curl cord 11 can be achieved in addition to the effects of the first embodiment.

[0046] FIGS. 12 and 13 are side views of the curl cord holder 14 of the third modification example of this embodiment.

[0047] This modified example is the same as the first embodiment, except that instead of the engagement structure between the hook of the knob portion of the latch portion RT bent into a U-shaped cross-section at the lower end of the holding portion Ka shown in FIGS. 3 to 6 of the first embodiment and the opening edge portion of the wall portion below the holding portion Kb, a snap-fit structure is adopted as the second latch portion RT2.

[0048] As shown in FIG. 12, the snap-fit structure of the second latch portion RT2 is a structure in which a tongue portion KaT protruding vertically from the lower end portion of the holding portion Ka (having a square opening portion PP in the middle thereof) engages with a protrusion PP protruding from the lower wall portion of the holding portion Kb. The square opening portion OP of the tongue portion KaT is caught by the protrusion PP in the holding portion Kb, and the holding portion Ka is fixed at a predetermined closing position. As shown by the white arrow in FIG. 13, when the holding portions Ka and Kb are opened, the tip of the tongue portion KaT is pushed forward and downward with a finger of a hand (not shown), and the tongue portion KaT is bent sufficiently due to elastic deformation, so that the separation between the tongue portion KaT (square opening portion PP) and the protrusion PP can be performed relatively easily. When the holding portions Ka and Kb are fixed, conversely, when the holding portion Ka is pushed, the tongue portion KaT having the square opening portion OP is caught by the protrusion PP of the holding portion Kb, and the holding portion Ka is fixed. Thus, the attachment and detachment of the tongue portion KaT are enabled by bending the tongue portion KaT.

[0049] According to this modified example, due to the snap-fit structure of the second latch portion RT2, in addition to the effects of the first embodiment, it contributes to further reduction of the injection molding material of the curl cord holder 14, and cost reduction can be achieved.

Embodiment

[0050] FIG. 14 is a side view of a curl cord holder according to a second embodiment of the present invention. FIG. 15 is a cross-sectional view taken along the line A-A of FIG. 14 as viewed from the front of the curl cord holder 14 of this embodiment.

[0051] The second embodiment is the same as the first embodiment, except that, in addition to the combination of the first and third modifications of the first embodiment, and instead of the pair of thin plate-like protrusions BPa and BPb (see FIG. 5) of the pair of holding portions Ka and Kb, as shown in FIGS. 14 and 15, a pair of thin protrusions Pa and Pb having a substantially conical shape are formed on the opposing surfaces FSa and FSb of the pair of holding portions Ka and Kb.

[0052] The pair of protrusions Pa and Pb are arranged at positions on the opposing surfaces FSa and FSb such that when the pair of holding portions Ka and Kb are in the closed state, the pair of protrusions Pa and Pb intervene in the gap GP of the helical portion HP of the curl cord 11.

[0053] The pair of protrusions Pa and Pb are arranged at positions on the opposing surfaces FSa and FSb so as to be offset (by the curl cord width W) in a direction CD intersecting the helical expansion and contraction direction HD and oppose each other. Although not shown, a plurality of each of the pair of protrusions Pa and Pb may be provided, and in that case, the protrusions are periodically separated at a distance equivalent to an integer multiple of the basic pitch LP of the curl cord 11 in the helical expansion and contraction direction HD of the curl cord 11.

[0054] According to this embodiment, since the pair of protrusions Pa and Pb that are offset and oppose each other can be formed in a shape that is not long and plate-like, in addition to the right-handed curl cord 11 of the right-handed curl helix, it is possible to also correspond to a left-handed curl cord if the pitch matches. Therefore, in addition to the effects of the first embodiment, it contributes to further reduction of the material for injection molding of the curl cord holder 14, and cost reduction can be achieved.

[0055] (Modification) FIG. 16 is a side view of a curl cord holder according to a modification of the second embodiment. FIG. 17 is a cross-sectional view similar to the cross-sectional view taken along the line A-A of FIG. 16 as viewed from the front of the curl cord holder 14 of this modification.

[0056] This modification example is the same as the second embodiment, except that the pair of protrusions Pa and Pb shown in FIGS. 14 and 15 of the second embodiment are changed to a pair of sword tip-shaped protrusions Pa1 and Pb1. Each of the sword tip-shaped protrusions Pa1 and Pb1 has a rhombus-shaped cross section with a rounded and tapered tip and a side surface that curls along the side surface of the curl cord 11, and the rhombus cross section is configured to be vertically symmetric with respect to the helical expansion and contraction direction HD.

[0057] According to this modification example, since a pair of offset-facing sword tip-shaped protrusions Pa1 and Pb1 can be formed in a shape that is not long in the plate shape, in addition to the curl cord 11 of the right-handed curl helix, if the pitch matches, it can also correspond to the left-handed curl cord. Furthermore, in addition to the effects of the second embodiment, the curl cord 11 can be reliably held.

Explanation of Signs

[0058] 11 Curl cord 12 Telephone main body 13 Handset 14 Curl cord holder BPa, BPb Plate-shaped protrusions HD Helical expansion and contraction direction CD Intersecting direction θP Pitch angle W Curl cord width HP Curl cord helical part LP Helical part pitch Ka, Kb Holding parts FSa, F Sb Opposing surfaces HG Hinge part RT Latch part BPaT, BPbT Tips of plate-shaped protrusions CS Connection part Pa, Pb, Pa1, Pb1 Protrusions

Claims

1. A pair of holding parts that can be opened and closed in a direction intersecting the spiral expansion and contraction direction of the curly cord, and at least a pair of protrusions that are erected on the opposing surfaces of each of the pair of holding parts and hold the curly cord. The pair of protrusions are arranged at positions on the opposing surfaces such that the pair of protrusions intervene in the gap between the spiral portions of the curly cord when the pair of holding parts are in the closed state. A curly cord holder characterized by the above.

2. The pair of protrusions are arranged at positions on the opposing surfaces so as to be offset and oppose each other in a direction intersecting the spiral expansion and contraction direction. The curly cord holder according to claim 1, characterized by the above.

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