Code holder

Abstract

This solves the problem of making it difficult to detach from the object being latched without complicating the structure. [Solution] The hook 6 comprises a base member 61, a first hook member 62 extending from the base member 61 toward the tip and folding back in a hook shape midway, and a second hook member 63 extending from the base member 61 toward the folded end 62a of the first hook member 62. A gap 64 is formed between the folded end 62a of the first hook member 62 and the extended end 63a of the second hook member 63 to allow the object to be hooked K to pass through, and the gap 64 is inclined in a direction such that the inner end 64b is closer to the base member 61 than the outer end 64c.

Description

Technical Field

[0001] The present invention relates to a hook suitably used for a cord holder or the like that guides a cord raised from the floor into a wiring duct provided on the lower surface of the tabletop.

Background Art

[0002] Conventionally, for example, a hook is provided at the upper end of a cord holder, and the hook is hooked on a wiring duct provided on the lower surface of the tabletop to hold the cord holder.

[0003] As a hook used for such applications, for example, as shown in FIG. 22, a synthetic resin hook M6 including a base end member M61, a first hook member M62 that extends from the base end member M61 in the tip direction and is folded back in a hook shape halfway, and a second hook member M63 that extends from the base end member M61 toward the folded-back end portion M62a of the first hook member M62 is known.

[0004] However, in a structure such as this, when a user's lower limb touches the cord holder, the hook M6 may come off the latching object MK provided on the wiring duct, and from the viewpoint of preventing unintended hook detachment during use, some countermeasure is desired.

[0005] To suppress the ease of the hook coming off, it is conceivable to connect the hook members with a locking member or the like so that a gap does not open, but providing such a locking member has the problem of causing the structure to become complicated.

[0006] Regarding hooks used for other applications (see, for example, Patent Document 1), those having a configuration similar to the above are known, but from the viewpoint of wanting to prevent unintended hook detachment, it can be said that they have the same problem.

Prior Art Documents

Patent Documents

[0007] [Patent Document 1] Japanese Patent Publication No. 2019-30599 [Overview of the project] [Problems that the invention aims to solve]

[0008] This invention aims to solve the problem that attempting to prevent or suppress unintended detachment from the object being latched leads to increased structural complexity. [Means for solving the problem]

[0009] The hook according to claim 1 comprises a base member, a first hook member extending from the base member toward the tip and folding back in a hook shape midway, and a second hook member extending from the base member toward the folded end of the first hook member, wherein a gap is formed between the folded end of the first hook member and the extended end of the second hook member for the object to be hooked to pass through, and the aforementioned gap is inclined in a direction such that the inner end is closer to the base member than the outer end.

[0010] The hook according to claim 2 comprises a base end member, a first hook member extending from the base end member toward the tip and folding back in a hook shape midway, and a second hook member extending from the base end member toward the folded end of the first hook member, wherein a gap is formed between the folded end of the first hook member and the extended end of the second hook member for the object to be hooked to pass through, and the aforementioned gap is inclined in a direction that reduces the opening width when the folded end side of the first hook member is elastically displaced outward.

[0011] The hook according to claim 3 is based on the configuration described in claim 1 or 2, and has the inner surface of the folded end and the inner surface of the extended end connected to each other in a substantially flush manner.

[0012] The hook according to claim 4 is based on the configuration described in claim 1, 2, or 3, and the gap is configured such that the opening width on the outer end is larger than the opening width on the inner end.

[0013] The hook according to claim 5 is based on the configuration described in claim 1, and the object to be hooked is a strip-shaped plate corresponding to the opening width of the gap.

[0014] The hook according to claim 6 is based on the configuration described in claim 5, wherein the base end member is provided at the upper end of the cord holder, and is designed to be able to be hooked onto an object formed on the bottom wall of a wiring duct. [Effects of the Invention]

[0015] According to the present invention, it is possible to provide a hook that can prevent or suppress the occurrence of the problem of the hook unintentionally falling off the object it is attached to, without complicating the structure. [Brief explanation of the drawing]

[0016] [Figure 1] An overall perspective view showing one embodiment of the present invention. [Figure 2] A front view showing the code holder portion of the same embodiment. [Figure 3] A plan view of the same embodiment. [Figure 4] A bottom view of the same embodiment. [Figure 5] Cross-sectional view corresponding to line AA in Figure 4. [Figure 6] Cross-sectional view corresponding to line BB in Figure 4. [Figure 7] Cross-sectional view corresponding to the CC line in Figure 2. [Figure 8] A perspective view showing the first unit duct of the same embodiment from an oblique angle above. [Figure 9] A perspective view showing the first unit duct of the same embodiment from a downward angle. [Figure 10] An enlarged cross-sectional view showing the AL portion in Figure 5. [Figure 11]Enlarged side cross-sectional view showing an enlarged view of the BL portion in FIG. 6. [Figure 12] Perspective view showing the second unit duct in the same embodiment from an obliquely upper side. [Figure 13] Perspective view showing a partially cut-away view of the second unit duct in the same embodiment. [Figure 14] Operation explanatory view showing the ratchet mechanism of the same embodiment. [Figure 15] Operation explanatory view showing the ratchet mechanism of the same embodiment. [Figure 16] Enlarged view showing an enlarged view of the X portion in FIG. 14. [Figure 17] Enlarged side cross-sectional view showing an enlarged view of the Y portion in FIG. 15. [Figure 18] Enlarged front cross-sectional view showing an enlarged view of the AH portion in FIG. 5. [Figure 19] Enlarged side cross-sectional view showing an enlarged view of the BH portion in FIG. 6. [Figure 20] Exploded perspective view showing the upper part of the holder body of the same embodiment disassembled. [Figure 21] Explanatory view showing an enlarged view of the hook of the same embodiment. [Figure 22] Explanatory view corresponding to FIG. 21 showing a conventional example.

Embodiments for Carrying Out the Invention

[0017] [[ID=4 I]]Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 21.

[0018] The cord holder H in this embodiment is for guiding a plurality of cords E rising from the wiring opening Fc of the floor F to the wiring duct I of the table G in a bundled state, as shown in FIGS. 1 to 6. Note that the cord E is omitted in the drawings other than FIG. 1 in order to prevent complication of the drawings.

[0019] In general terms, this cord holder H comprises a holder body 2 having multiple unit holders 3 and 4 for holding cord E arranged in the direction of cord extension, a common core material 1 that is inserted through the axial portion of the holder body 2 and has one end 1a supported by one end 2a of the holder body 2, and a ratchet mechanism 5 which is a fastening mechanism that fixes the other end 1b of the core material 1 to the holder body 2 in a fixed position changeable manner. <Core material 1> (Figures 5-7, 10, 11, 13) More specifically, the core material 1 is made of synthetic resin and has been introduced into this cord holder H in place of conventional wire. It is flat and strip-shaped, with a large-diameter portion 11 integrally provided at its upper end 1a. As shown in Figure 13, the tip portion 12 located at the lower end 1b of the core material 1 is tapered, and an intermittent pawl 51 of the ratchet mechanism 5, which will be described later, is integrally formed on one side 12a of the tip portion 12. This core material 1 is inserted through the axial center of the holder body 2 from above, holding the holder body 2 in a fixed shape in a skewer-like manner. In this embodiment, the core material 1 is loosely fitted into the through holes 31a, 41a, and 61a of the holder body 2 so that it can rotate on its axis within a specific angular range.

[0020] Furthermore, since the core material 1 is made of synthetic resin, it is less expensive than conventional wires and has the following characteristics. Based on its material and shape, the holder body 2 can be bent to a certain extent in the longitudinal direction and on both sides of the core material 1. Moreover, since the core material 1 is in the shape of a strip, even though it is made of synthetic resin, it is possible to twist the first and second unit holders 3 and 4 that are connected vertically, and based on its elasticity, it can automatically return to its original position. <Holder body 2> (Figure 2) The holder body 2 comprises a plurality of adjacently arranged first unit holders 3, a second unit holder 4 positioned below the first unit holders 3, and a hook 6 positioned on top of the uppermost first unit holder. In this embodiment, the hook 6 corresponds to one end 2a of the holder body 2. That is, one end 1a (hereinafter referred to as "upper end 1a") of the core material 1, which passes through the plurality of unit holders 3 and 4 and the hook 6, is locked to the hook 6 by the large diameter portion 11, and the other end 1b (hereinafter referred to as "lower end 1b") of the core material 1 is fixed to the second unit holder 4 via a ratchet mechanism 5 so as to be able to change its fixed position. <First unit holder 3> (Figures 5-11) As shown in Figures 7 to 9, the first unit holder 3 includes a hub portion 31 through which the core material 1 passes, and a guide portion 33 that forms a cord insertion space 32 between the hub portion 31 and the guide portion 33, allowing multiple cords E (not shown) to be inserted into the cord insertion space 32.

[0021] In other words, the core material 1 is a flat, strip-shaped object as described above, and the hub portion 31 is cylindrical with a rectangular cross-section through-hole 31a in the axial center through which the core material 1 passes. A positioning projection 31b is provided at the lower end of the hub portion 31, and a positioning recess 31c is formed at the upper end. In addition, a connecting wall 34 extending outward is provided at one location on the outer circumferential surface of the hub portion 31.

[0022] The guide section 33 supports a pair of enclosing walls 33a that curve to surround the hub section 31 at the extended end of the connecting wall 34. That is, each enclosing wall 33a is semi-cylindrical in shape, and the ends of these enclosing walls 33a are butted together via a slit 33b so that they can be separated.

[0023] Between the hub portion 31 and the guide portion 33, a cord insertion space 32 is formed for inserting multiple cords E (not shown). The cord insertion space 32 is a continuous space that forms a C shape in plan view, making it easy to pack multiple cords E into it. The guide portion 33, the connecting wall 34, and the hub portion 31 are integrally molded from synthetic resin, and by elastically deforming the surrounding wall 33a of the guide portion 33, the slit 33b formed between the abutting ends of the surrounding wall 33a can be expanded and contracted. In other words, this unit holder 3 can expand and contract the slit 33b of the guide portion 33 using the elastic deformation of the material, and continuous cords E can be guided in and out of the cord insertion space 32 through the slit 33b. The upper and lower ends of the slit 33b are gradually widened outward to smoothly guide the cords E being inserted and removed. Multiple protrusions 33c are formed on the inner circumference of the guide portion 33 to suppress unnecessary movement of the cord E inserted into the cord insertion space 32. <Second unit holder 4> (Figures 10-13) The second unit holder 4 is located at the bottom of the holder body 2 and includes a hub portion 41 through which the core material 1 passes, and a guide portion 43 that forms a cord insertion space 42 between the hub portion 41 and the hub portion 41. This second unit holder 4 corresponds to the other end 2b of the holder body 2.

[0024] More specifically, a through-hole 41a is formed in the axial portion of the hub portion 41 through which the core material 1 passes, and a positioning recess 41b is formed at the upper end of the hub portion 41. In addition, a connecting wall 44 is provided projecting outward from one location on the outer circumferential surface of the hub portion 41. The guide portion 43 supports a pair of surrounding walls 43a that curve to surround the hub portion 41 at the extended end of this connecting wall 44.

[0025] The second unit holder 4 is located at the bottom of the holder body 2, and a ratchet mechanism 5, which is a fastening mechanism, is provided between the hub portion 41 and the core material 1. The pair of surrounding walls 43a that make up the guide portion 43 each have a flared shape.

[0026] To explain in more detail, each surrounding wall 43a in the second unit holder 4 is a fan-shaped semi-cylindrical body that widens towards the end, and the ends of these surrounding walls 43a are butted together via a slit 43b so that they can be separated. Between the hub portion 41 and the guide portion 43, a cord insertion space 42 is formed for inserting multiple cords E. The cord insertion space 42 is a continuous space that forms a C shape in plan view, making it easy to pack multiple cords E into it. The guide portion 43, the connecting wall 44, and the hub portion are integrally molded from synthetic resin, and by elastically deforming the surrounding wall 43a of the guide portion 43, the slit 43b formed between the abutting ends of the surrounding wall 43a can be expanded and contracted. In other words, the second unit holder 4 can expand and contract the slit 43b of the guide portion 43 using the elastic deformation of the material, and continuous cords E can be guided in and out of the cord insertion space 42 through the slit 43b.

[0027] To put it another way, the second unit holder 4 at the bottom is as follows: The second unit holder 4 located at the bottom of the holder body 2 has a cord inlet 45 at its lower end for introducing multiple cords E raised from the wiring port Fc in the floor F, as shown in Figures 1 and 10 to 13, and a cord outlet 46 for leading out the bundled cords E towards the next unit holder 3, with the cord inlet 45 having an opening shape corresponding to the wiring port Fc.

[0028] In this embodiment, the wiring port Fc of the floor surface F has a linear shape that allows multiple cords E to pass through in a row, as shown in Figure 1. Specifically, this wiring port Fc is formed in a part of the linear gap Fb formed between the OA floor panels Fa that form the raised floor. However, the cord entry port 45 of the second unit holder 4 has a horizontally elongated shape that corresponds to the elongated linear wiring port Fc, as shown in Figure 4.

[0029] Thus, each second unit holder 4 is equipped with a guide portion 43 that encloses the code E passing through its interior, and the code E, guided from the code entry port 45 into the guide portion 43 of the lowest second unit holder 4, is guided into the code insertion space 32 of the next first unit holder 3 without being exposed to the outside.

[0030] However, the opening area of ​​the cord inlet 45 in the second unit holder 4 is set to be larger than the opening area of ​​the cord outlet 46 in the same second unit holder 4. Furthermore, the opening area of ​​the cord outlet 46 in the second unit holder 4 and the opening area of ​​the cord inlet 35 in the next stage first unit holder 3 are set to be the same or approximately the same value (see Figures 10 and 11). <Ratchet mechanism 5> (Figures 13-17) The holder body 2 comprises the second unit holder 4 described above, a plurality of first unit holders 3 arranged in a row on top of the second unit holder 4, and a hook 6, which will be described later, positioned on top of the uppermost first unit holder 3. A flat, strip-shaped core material 1 is passed through a through hole 61a formed in the base end member 61 of the hook 6, through holes 31a formed in the hub portion 31 of each first unit holder 3, and through hole 41a formed in the hub portion 41 of the lowermost second unit holder 4. The large diameter portion 11 formed at the upper end of the core material 1 is locked to the hook 6, and the tip portion 12 of the core material 1 is fastened to the hub portion 41 of the second unit holder 4 via a ratchet mechanism 5, which is a fastening mechanism.

[0031] The ratchet mechanism 5 is configured to allow relative movement between the core material 1 and the holder body 2 in the direction in which the core material 1 is tensioned, and to prohibit relative movement between the core material 1 and the holder body 2 in the direction in which the core material 1 is relaxed. In other words, the ratchet mechanism 5 comprises a plurality of intermittent pawls 51 provided on the core material 1 and a ratchet pawl 52 provided on the second unit holder 4 that selectively engages with the intermittent pawls 51.

[0032] More specifically, as shown in Figures 13 to 17, the ratchet mechanism 5 of this embodiment has multiple intermittent pawls 51 integrally formed on one side surface 12a of the tip portion 12 of the core material 1. As shown in Figures 16 and 17, each intermittent pawl 51 has a most protruding stepped portion 51a and an inclined portion 51b from which the protruding dimension gradually decreases downward. Multiple intermittent pawls 51 are arranged such that the stepped portion 51a of the next intermittent pawl 51 is continuous with the end of the inclined portion 51b of the upper intermittent pawl 51.

[0033] Furthermore, a ratchet pawl 52 is provided within the hub portion 41 of the second unit holder 4 into which the tip portion 12 of the core material 1 is inserted. The ratchet pawl 52 rotates in a direction toward and toward the core material 1 around a resin hinge 53. The ratchet pawl 52 has a pawl body 54 that is rotatably mounted on the hub portion 41 via the resin hinge 53 and elastically biased toward the core material 1. The surface of the pawl body 54 that elastically contacts the core material 1 is provided with an inclined portion 52b whose protruding dimension gradually increases toward the downward, and a stepped portion 52a that is continuous with the lower end of the inclined portion 52b. In the illustrated example, four sets of inclined portions 52b and stepped portions 52a are provided, but at least one set is sufficient.

[0034] However, when an upward pulling force is applied to the core material 1 while one of the ratchet pawls 52 is engaged with the intermittent pawl 51, the pawl body 54 attempts to rotate around the resin hinge 53 in a direction that approaches the core material 1. As a result, the core material 1 is firmly fixed, and the upward pulling motion is prevented.

[0035] On the other hand, when a downward tensile force is applied to the core material 1, as shown in Figure 16, the guiding action of the inclined surface 51b of the intermittent claw 51 causes the claw body 54 to be biased to rotate away from the core material 1 around the resin hinge 53, and the engagement relationship between the intermittent claw 51 and the ratchet claw 52 is released. As a result, the ratchet claw 52 can engage with an upper intermittent claw 51. <Hook 6> (Figures 18-21) The hook 6 of the holder body 2 comprises a base end member 61 positioned on the uppermost unit holder 3, a first hook member 62 extending from the base end member 61 toward the tip (upward in the figure) and folding back in a hook shape midway, and a second hook member 63 extending from the base end member 61 toward the folded end 62a of the first hook member 62. A gap 64 is formed between the folded end 62a of the first hook member 62 and the extended end 63a of the second hook member 63 to allow the object to be hooked K to pass through. The gap 64 is inclined so that the inner end 64b is closer to the base end member 61 than the outer end 64c. In other words, the aforementioned gap 64 is inclined so that the opening width 64a decreases when the folded end 62a of the first hook member 62 is elastically displaced outward (outward in the figure) (see Figure 21).

[0036] In this hook 6, the inner surface 62b of the folded end 62a of the first hook member 62 and the inner surface 63b of the extended end 63a of the second hook member 63 are made substantially flush and continuous, and the gap 64 is formed such that the opening width 64a on the outer end 64c side is larger than the opening width 64a on the inner end 64b side.

[0037] This hook 6 is attached to the bottom wall Ia of the wiring duct I, which is located on the underside of the top plate J. The object to which this hook 6 attaches, K, is a strip-shaped piece formed by reusing a portion of the bottom wall Ia of the wiring duct I. Specifically, a pair of through-windows Ib are drilled into the bottom wall Ia, and the strip-shaped portion formed between these through-windows Ib is used as the object to which this hook 6 attaches, K.

[0038] As shown in Figures 19 and 20, the base end member 61 of the hook 6 is connected to the uppermost first unit holder 3 of the holder body 2, and can be said to be provided at the upper end (one end 2a) of the holder body 2. This base end member 61 has a through hole 61a in its axial portion for passing the core material 1 through, and the large diameter portion 11 of the core material 1 can be locked at the upward opening end surface 61b of the through hole 61a. In addition, a canopy portion 61c is provided above the upward opening end surface 61b of the base end member 61 to prevent the core material 1 from coming out upward, thereby preventing the core material 1 from coming out straight upward. A guide inclined surface 61d is formed on the upper surface of the canopy portion 61c to prevent the large diameter portion 11 of the core material 1 from getting caught on the canopy portion 61c just before the core material 1 is fully inserted into the through hole 61a.

[0039] The upper end of the base member 61 is integrally provided with the aforementioned first and second hook members 62 and 63, while the lower end is provided with a projection 61e that loosely fits into the positioning recess 31c of the first unit holder 3 located in the lower section (see Figure 19). <Assembly Instructions> Here, we will explain the assembly procedure for this cord holder H. First, the core material 1 is sequentially inserted from the lower end 1b side through the through hole 61a formed in the base end member 61 of the hook 6, the through hole 31a formed in the hub portion 31 of each first unit holder 3, and the through hole 41a formed in the hub portion 41 of the second unit holder 4. Through this process, the hook 6, the multiple first unit holders 3, and the second unit holders 4 are held together in a skewer-like state by the common core material 1.

[0040] In this process, the large-diameter portion 11 formed on the upper end 1a of the core material 1 is guided by the guide inclined surface 61d of the hook 6, temporarily retracted to the side, and then locked onto the upward-facing open end surface 61b of the hook 6, thereby preventing the core material 1 from moving downward. On the other hand, the tip portion 12 located on the lower end 1b side of the core material 1 is inserted into the through hole 41a of the hub portion 41 of the second unit holder 4 located at the lowest stage, and is automatically fixed to the second unit holder 4 by the action of the ratchet mechanism 5 incorporated within the hub portion 41.

[0041] The assembly can be completed by passing the core material 1 through the holder body 2 using the above procedure. However, the fixing position of the tip 12 of the core material 1 relative to the holder body 2 can be appropriately selected based on the degree of downward pulling on the core material 1 just before the completion of assembly, and can also be changed after the completion of assembly by further pulling on the core material 1 downward. In other words, this ratchet mechanism 5 can select which intermittent pawl 51 of the core material 1 the ratchet pawl 52 on the holder body 2 side will engage with, solely based on the degree of downward pulling on the core material 1. When the ratchet pawl 52 is engaged with the upper intermittent pawl 51, a relatively high tension is applied to the core material 1, and when the ratchet pawl 52 is engaged with the lower intermittent pawl 51, a relatively low tension is applied to the core material 1.

[0042] However, when the tension of the core material 1 is relatively low, the engagement between the positioning projections 31b and the positioning recesses 31c and 41b, respectively, between the first unit holder 3 and the second unit holder 4 becomes looser, making it possible to bend the cord holder H relatively significantly. On the other hand, when the tension of the core material 1 is relatively high, the engagement between the aforementioned positioning projections 31b and the positioning recesses 31c and 41b becomes tighter, which is suitable for cases where it is desirable to maintain the entire cord holder H in a nearly straight state.

[0043] Changing the fixed position can be done simply by pulling the tip 12 of the core material 1 downwards, making it easy to assemble the core material 1 and adjust its tension. To remove the core material 1 from the holder body 2 or to reset the tension of the core material 1, the ratchet pawl 52 can be temporarily retracted away from the core material 1 using a tool such as a screwdriver (not shown). <Effects of Code Holder H> With a cord holder H of this configuration, the tip 12 of the core material 1 is fixed to the holder body 2 via a ratchet mechanism 5 so that its fixed position can be changed, making it easy to assemble the core material 1 and adjust the tension.

[0044] In other words, with this configuration, the assembly of the core material 1 to the holder body 2 is completed by passing the tip portion 12 of the core material 1 through the hub portion 41 of the second unit holder 4 and engaging the ratchet pawl 52 with one of the intermittent pawls 51 formed on the tip portion 12.

[0045] While the cord holder H can certainly be used as a finished product in this state, it is also possible to further adjust the tension of the core material 1 during assembly. In that case, first, the ratchet pawl 52 on the holder body 2 side is engaged with the intermittent pawl 51 located lower on the tip 12 of the core material 1. Next, when the tip 12 of the core material 1 is pulled downward relative to the holder body 2, the ratchet pawl 52 will sequentially engage with the intermittent pawls 51 located higher up, and the tension of the core material 1 will increase in stages. Therefore, when the pulling of the tip 12 is stopped when the tension of the core material 1 is appropriate, the core material 1 will be fixed to the holder body 2, and the core material 1 can be attached to the holder body 2 while maintaining the desired tension.

[0046] Even if the tension of the core material 1 decreases due to aging or other factors, simply pulling the tip 12 of the core material 1 against the holder body 2 will relatively change the fixing position of the core material 1 relative to the holder body 2. Therefore, the tension of the core material 1 can be easily and appropriately adjusted.

[0047] As shown in Figure 21, the hook 6 of the cord holder H comprises a base member 61, a first hook member 62 extending from the base member 61 toward the tip and folding back in a hook shape midway, and a second hook member 63 extending from the base member 61 toward the folded end 62a of the first hook member 62. A gap 64 is formed between the folded end 62a of the first hook member 62 and the extended end 63a of the second hook member 63 to allow a strip-shaped object K to pass through. The gap 64 is inclined so that the inner end 64b is closer to the base member 61 than the outer end 64c.

[0048] However, if the gap 64 of the hook 6 is inclined in this direction, when the folded end 62a of the first hook member 62 is elastically displaced outward by the pressing force L of the object to be hooked K (see dashed line in Figure 21), the opening width 64a of the gap 64 will be reduced. Therefore, even if the hook 6 and the object to be hooked K move relative to each other and the object to be hooked K approaches the gap 64, the pressing force L of the object to be hooked K trying to escape outward will reduce the opening width 64a of the gap 64, preventing it from escaping.

[0049] In particular, the hook 6 has the inner surface 62b of the folded end 62a of the first hook member 62 and the inner surface 63b of the extended end 63a of the second hook member 63 connected to each other in a substantially flush manner. As a result, the possibility of the object to be hooked K remaining near the gap 64 is reduced, and the opportunity for the object to be hooked K to slip out of the gap 64 is reduced.

[0050] In contrast, in the conventional hook M6, as shown in Figure 22, the extended end M63a of the second hook member M63 protrudes inward more than the inner surface M62b of the folded end M62a of the first hook member M62. Therefore, when the object to be hooked K moves relative to the hook M6, there is a high possibility that the object to be hooked K will be caught on the protruding end of its extended end M63a and guided into the gap M64. Moreover, since the conventional gap M64 is inclined in the opposite direction to the gap 64 of the hook 6 of the present invention, when the object to be hooked MK tries to insert itself into the gap M64, the hook members M62 and M63 will elastically deform in a direction that expands the gap M64a.

[0051] Therefore, when comparing the hook 6 of the present invention with a conventional hook M6, the hook 6 of the present invention is less likely to come off than the conventional hook M6, even though it does not have a locking mechanism or the like.

[0052] Furthermore, in this hook 6, the opening width on the outer end 64c side of the gap 64 is larger than the opening width on the inner end 64b side. Therefore, when the hook 6 is attached to the object K to be attached, the object K can easily enter the gap 64. As a result, the attachment operation of the hook 6 can be performed smoothly. <Other Embodiments> Furthermore, the present invention is not limited to the embodiments described above, and various modifications are possible.

[0053] The hook of the present invention is not necessarily limited to use as a cord holder, but can be applied to a variety of uses.

[0054] Furthermore, the invention described in claim 1 also includes a configuration in which the inner surface of the folded end of the first hook member and the inner surface of the extended end of the second hook member are not substantially flush and continuous. For example, if the second hook member is short and not easily elastically deformable, the inner surface of the second hook member may be positioned inward from the inner surface of the first hook member.

[0055] Furthermore, the hooks are not limited to those made of synthetic resin; metal and other materials can also be used, as long as they are capable of some degree of elastic deformation.

[0056] Furthermore, various modifications are possible without departing from the spirit of the present invention. [Explanation of symbols]

[0057] E...code F…Floor G... Table H... Code holder I...Wiring duct J...Top plate K... object to be attached 1…Core material 12...Tip 3…First unit holder 31... Hub section 32…Space for inserting cables 33… Guide Section 4…Second unit holder 41... Hub section 42…Cord insertion space 43… Guide Section 45... Code entry point 46... Code Output 5… Ratchet mechanism (locking mechanism) 51... Intermittent nail 52... Ratchet pawl 6... Hook 61… Base end member 62...First Hook Member 63...Second Hook Member 64... Gap

Claims

1. It comprises a base end member, a first hook member extending from the base end member toward the tip and folding back in a hook shape midway, and a second hook member extending from the base end member toward the folded end of the first hook member, wherein a gap is formed between the folded end of the first hook member and the extended end of the second hook member for the object to be hooked to pass through. The gap is a hook whose inner end is inclined in a direction that brings it closer to the base member than the outer end.

2. It comprises a base end member, a first hook member extending from the base end member toward the tip and folding back in a hook shape midway, and a second hook member extending from the base end member toward the folded end of the first hook member, wherein a gap is formed between the folded end of the first hook member and the extended end of the second hook member for the object to be hooked to pass through. The gap is a hook in which the opening width is reduced when the folded end side of the first hook member is elastically displaced outward.

3. The hook according to claim 1 or 2, wherein the inner surface of the folded end and the inner surface of the extended end are made substantially flush and continuous.

4. The hook according to claim 1, 2, or 3, wherein the gap is such that the opening width on the outer end is greater than the opening width on the inner end.

5. The hook according to claim 1, wherein the object to be hooked is a strip-shaped plate corresponding to the opening width of the gap.

6. The hook according to claim 5, wherein the object to be hooked is provided on the bottom wall of a wiring duct, and the base end member is provided on the upper end of a cord holder.

Images