Electronic apparatus

The electronic device addresses the inefficiency of existing cable wiring techniques by using an L-shaped member to rotate and push the cable, allowing for wiring with a force less than the cable's reaction force, thus enhancing efficiency and reducing operator effort.

JP2025083604APending Publication Date: 2025-06-02MITSUBISHI ELECTRIC CORP
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Patent Information

Application Number
JP2023197047
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-11-21
Publication Date
2025-06-02

AI Technical Summary

Technical Problem

Existing wiring techniques require a significant operating force to resist the reaction force of a curved cable, making them inefficient and labor-intensive.

Method used

An electronic device with a terminal block, an L-shaped member, a hook portion, and a notch portion, where the L-shaped member is rotated to push the cable toward the rear of the housing, reducing the required operating force.

Benefits of technology

Enables cable wiring with a force smaller than the reaction force of the cable, improving efficiency and reducing operator strain.

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Abstract

To provide an electronic apparatus in which a cable can be wired with a smaller force than a reaction force of the cable.SOLUTION: An electronic apparatus comprises: a terminal block 14 which is supported inside of a housing 11; an L-shaped member 13 including one side part 13a fixed to the terminal block 14 and another side part 13b to which a rotating operation force is applied; a suspension part 14b which is provided in the terminal block 14; and a notch part 13e which is provided in the one side part 13a and can be suspended with respect to the suspension part 14b. When the rotating operation force is applied to the other side part 13b in a state where the notch part 13e is suspended in the suspension part 14b, the L-shaped member 13 pushes in a first cable 21, which has been provided within the housing 11, toward a rear side of the housing 11 by rotating the other side part 13b toward the rear side of the housing 11 while defining an engage point, where the notch part 13e and the suspension part 14b are mutually suspended, as a rotation center.SELECTED DRAWING: Figure 8
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Description

Technical Field

[0001] The present disclosure relates to an electronic device.

Background Art

[0002] In some electronic devices, a cable may be used to supply power or transmit and receive electrical signals. Therefore, Patent Document 1 discloses a wiring technique for wiring a cable. The wiring technique disclosed in Patent Document 1 uses a jig called a cable holding tool to wire the cable.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the wiring technique disclosed in Patent Document 1, after holding the cable with a jig, the cable can be assembled to a connector by moving the jig. At this time, the jig holds the cable in a curved state and guides it to the connector to be assembled. Therefore, in the wiring technique disclosed in Patent Document 1, in order to resist the reaction force from the curved cable, it is necessary to operate the jig with a large operating force. As a result, the wiring technique disclosed in Patent Document 1 requires an operating force greater than the reaction force of the cable for the jig.

[0005] The present disclosure has been made to solve the above problems, and an object thereof is to provide an electronic device capable of wiring a cable with a force smaller than the reaction force of the cable.

Means for Solving the Problems

[0006] The electronic device according to the present disclosure includes a terminal block supported inside a housing, an L-shaped member having one side portion fixed to the terminal block and the other side portion arranged to intersect the one side portion and to which a rotational operation force is applied, a hook portion provided on the terminal block, and a notch portion provided on the one side portion and capable of being hooked to the hook portion. When a rotational operation force is applied to the other side portion of the L-shaped member in a state where the notch portion is hooked to the hook portion, the other side portion rotates toward the rear side of the housing about an engagement point where the notch portion and the hook portion are hooked to each other, and thereby pushes a first cable already provided inside the housing toward the rear side of the housing.

Effect of the Invention

[0007] According to the present disclosure, the cable can be wired with a force smaller than the reaction force of the cable.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

MODE FOR CARRYING OUT THE INVENTION

[0009] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings.

[0010] Embodiment 1. The electronic device according to Embodiment 1 will be described with reference to FIGS. 1 to 12.

[0011] First, the configuration of the electronic device according to Embodiment 1 will be described with reference to FIGS. 1 to 5. FIG. 1 is a front view of the electronic device according to Embodiment 1. FIG. 2 is a cross-sectional view taken along the line II-II of FIG. 1. FIG. 3 is an enlarged view of the main part of FIG. 2. FIG. 4 is a view showing the fixing structure of the L-shaped member 13 and the terminal block 14. FIG. 5 is a view showing the final wiring state (final holding state) of the external cable 21.

[0012] The electronic device shown in FIG. 1 is, for example, a communication device. As shown in FIGS. 1 to 3, the electronic device includes a housing 11, a communication device 12, an L-shaped member 13, and a terminal block 14. The communication device 12, the L-shaped member 13, and the terminal block 14 are provided inside the housing 11. The L-shaped member 13 and the terminal block 14 are disposed below the communication device 12. In addition, an external cable 21 and an in-rack cable 22 are wired inside the housing 11. The external cable 21 constitutes a first cable, and the in-rack cable 22 constitutes a second cable.

[0013] The housing 11 is a substantially rectangular parallelepiped with an open front surface and is installed vertically. In FIGS. 1 and 2, an opening / closing door for opening and closing the front opening of the housing 11 is not shown and is omitted.

[0014] In the electronic device, the front opening side of the housing 11 is defined as the front side, and the opposite side is defined as the rear side. Also, in the electronic device, as described above, the housing 11 is formed vertically, and its vertical direction is defined as the up-down direction.

[0015] The communication device 12 exchanges signals with various external devices (not shown) provided outside the electronic device according to the first embodiment via one or more external cables 21. The communication device 12 is disposed inside the housing 11 at the lower side. FIG. 1 shows an example in which four external cables 21 are connected to one communication device 12.

[0016] As shown in FIG. 4, the L-shaped member 13 is a member extending in the width direction of the housing 11. The cross section of this L-shaped member 13 forms an L shape. For this reason, the L-shaped member 13 has one side portion 13a forming one side thereof and the other side portion 13b forming the other side thereof. Both the one side portion 13a and the other side portion 13b are formed in a flat plate shape. If the intersection angle formed by the inner surface of the one side portion 13a and the inner surface of the other side portion 13b is defined as the "diagonal angle", this diagonal angle is substantially a right angle. Note that the diagonal angle of the L-shaped member 13 may be an acute angle or an obtuse angle, but considering the rotational operability with respect to the L-shaped member 13, an angle of about a right angle is preferable.

[0017] The one side portion 13a is a portion for fixing the L-shaped member 13 to a terminal block 14 described later. The other side portion 13b is a portion used when rotating the L-shaped member 13 in order to hold the existing external cable 21 at an appropriate position. The length of the one side portion 13a (the length in the width direction of the housing 11) and the length of the other side portion 13b (the length in the width direction of the housing 11) are the same length. Also, the width of the other side portion 13b (the length in the direction orthogonal to the width direction of the housing 11) is longer than the width of the one side portion 13a (the length in the direction orthogonal to the width direction of the housing 11). For this reason, when rotating the other side portion 13b, a larger rotational operation force is generated on the L-shaped member 13 compared to the case where the above two lengths are the same.

[0018] One side edge portion 13a has a plurality of cable insertion holes 13c. The cable insertion holes 13c are holes through which the in-rack cables 22 are inserted. These cable insertion holes 13c are formed along the length direction of the one side edge portion 13a. One in-rack cable 22 is inserted into one cable insertion hole 13c. The one side edge portion 13a only needs to have one or more cable insertion holes 13c. FIG. 2 shows an example in which the one side edge portion 13a has 11 cable insertion holes 13c.

[0019] On the other hand, the other side edge portion 13b has a plurality of cable attachment holes 13d. The plurality of in-rack cables 22 inserted through the respective cable insertion holes 13c are bundled by one or more binding bands (not shown). The cable attachment holes 13d are holes for attaching the binding bands. The other side edge portion 13b only needs to have one or more cable attachment holes 13d.

[0020] Also, the one side edge portion 13a has notch portions 13e. The notch portions 13e are respectively formed at both side portions in the length direction at the front end (in other words, the width direction end face) of the one side edge portion 13a. Although details will be described later, such a pair of left and right notch portions 13e when viewed from the front of the housing 11 are also hooked on the hooking portion 14b of the terminal block 14 in order to hold the existing external cable 21 in an appropriate position.

[0021] As shown in FIG. 4, the terminal blocks 14 are respectively provided on both sides in the width direction of the housing 11 inside the housing 11. Also, the terminal blocks 14 are disposed below the L-shaped member 13. Such a pair of left and right terminal blocks 14 when viewed from the front of the housing 11 are formed to be symmetric with respect to the center line in the width direction of the housing 11. The terminal block 14 disposed on the left side is supported by the left inner side surface of the housing 11. The terminal block 14 disposed on the right side is supported by the right inner side surface of the housing 11.

[0022] Each terminal block 14 has a fixing surface 14a and a hook portion 14b respectively. The fixing surface 14a forms the upper surface of the terminal block 14. Also, each fixing surface 14a is a surface for fixing both ends in the length direction of one side portion 13a of the L-shaped member 13 respectively. Both ends in the length direction of the one side portion 13a are fixed to the respective fixing surfaces 14a using two screws 31. The screw 31 is fastened to the screw hole of the terminal block 14 through the screw-through hole (so-called blind hole) of the one side portion 13a.

[0023] Furthermore, the fixing surface 14a is arranged to be inclined with respect to the installation surface on which the housing 11 is installed. Specifically, the fixing surface 14a is formed to be gradually inclined from the rear side to the front side of the housing 11. That is, the fixing surface 14a is a forward-inclined surface. For this reason, when the L-shaped member 13 is placed on the fixing surface 14a, the upper end of the other side portion 13b (in other words, the width-direction end face) naturally approaches the front surface of the housing 11. As a result, the fixing surface 14a of the terminal block 14 can be arranged at a position where it is easy to rotate the other side portion 13b.

[0024] The hook portion 14b is arranged on the front side of the housing 11 rather than the fixing surface 14a. Also, the hook portion 14b protrudes upward from the fixing surface 14a and is formed to bend toward the outside in the width direction of the housing 11. Note that the hook portion 14b may be formed to bend toward the inside in the width direction of the housing 11. Such a pair of left and right hook portions 14b as viewed from the front of the housing 11 respectively correspond to a pair of left and right notch portions 13e as viewed from the front of the housing 11. The corresponding notch portion 13e can be hooked on the hook portion 14b from the rear side of the housing 11.

[0025] As shown in FIGS. 1, 2, 3, and 5, the external cable 21 is connected to the communication device 12 via a light-angle-shaped connector 21a. The external cable 21 is connected to the communication device 12 in advance before the L-shaped member 13 is fixed to the terminal block 14, and is routed along the vertical direction of the housing 11. Specifically, the external cable 21 extends downward from the communication device 12, penetrates the bottom plate of the housing 11, and then is connected to various external devices. Also, the external cable 21 has different diameters and hardnesses depending on the type of external device to be connected.

[0026] As shown in FIGS. 1 and 2, the in-rack cable 22 is wired inside the housing 11. The in-rack cable 22 has a cylindrical support member 22a. The support member 22a is fitted into the outer peripheral portion of the in-rack cable 22 and is inserted and supported in the cable insertion hole 13c of the one-side portion 13a. That is, the in-rack cable 22 is supported by the cable insertion hole 13c of the one-side portion 13a via the support member 22a. The portion of the in-rack cable 22 that extends upward from the support member 22a is bundled by the above-mentioned binding band. Specifically, the in-rack cable 22 is routed along the vertical direction between above the communication device 12 and near the bottom plate of the housing 11.

[0027] Here, when the external cable 21 connected to the communication device 12 is simply routed along the vertical direction, the external cable 21 is disposed at a position where it interferes with the L-shaped member 13. Therefore, when fixing the L-shaped member 13 to the terminal block 14 using the screw 31, it is necessary to retract the L-shaped member 13 to a position where it does not contact the external cable 21. In particular, when the number of external cables 21 is large, the operation of retracting the L-shaped member 13 from all of those external cables 21 is very difficult. As one method of solving such a problem, it is conceivable to push all of those external cables 21 toward the rear side of the housing 11 at the same time as fixing the L-shaped member 13. In this case, an operating force that resists the reaction force corresponding to the hardness of the surface layer of the external cable 21 must be applied to the L-shaped member 13.

[0028] Therefore, in the electronic device according to the first embodiment, without using a jig that is separate from the device, a rotation mechanism is configured by the L-shaped member 13 and the terminal block 14 that constitute the device, so that all the external cables 21 are pushed into and held on the rear side of the housing 11 at once.

[0029] Next, a method for holding the existing external cable 21 in the electronic device according to the first embodiment will be described with reference to FIGS. 6 to 8. FIG. 6 is a diagram showing a state immediately after starting the rotation operation of the L-shaped member 13. FIG. 7 is a diagram showing how the L-shaped member 13 is rotated. FIG. 8 is a diagram showing in sequence how the external cable 21 is pushed in by the rotation operation of the L-shaped member 13.

[0030] First, after a plurality of external cables 21 are connected to the communication device 12 via the connectors 21a, they are aligned along the vertical direction. Also, a pair of left and right terminal blocks 14 are fixed inside the housing 11.

[0031] Next, as shown in FIG. 6, the notch 13e of one side portion 13a of the L-shaped member 13 is hooked from the rear side of the housing 11 with respect to the hooking portion 14b of the fixed terminal block 14. For this reason, as shown in FIG. 6A, the existing external cable 21 contacts the outer corner formed by the outer surfaces of one side portion 13a and the other side portion 13b of the L-shaped member 13. Or, as shown in FIG. 6B, the existing external cable 21 contacts the outer surface of one side portion 13a of the L-shaped member 13.

[0032] Note that thereafter, as shown in FIG. 6A, the L-shaped member 13 may be temporarily fixed to the terminal block 14 using the screw 31. For this reason, the rotation operation of the L-shaped member 13 described later can be easily performed. The temporary fixing of the screw 31 in this case is a fixing to such an extent that the L-shaped member 13 can be displaced with respect to the fixing surface 14a of the terminal block 14 in a state where the notch 13e is hooked on the hooking portion 14b.

[0033] Next, as shown in FIG. 6, a rotational operation force is applied to the other side portion 13b of the L-shaped member 13 toward the rear side of the housing 11. For this reason, as shown in FIG. 7, the L-shaped member 13 rotates toward the rear side of the housing 11 with the notch portion 13e hooked on the hooking portion 14b, with the other side portion 13b rotating about the engagement point where the notch portion 13e and the hooking portion 14b are hooked on each other as the rotation center. In other words, the L-shaped member 13 rotates so as to approach the fixing surface 14a of the one side portion 13a.

[0034] As a result, as shown in FIG. 8, all the existing external cables 21 are pushed toward the rear side of the housing 11 by the outer surface of the other side portion 13b of the rotating L-shaped member 13 (including the outer corner formed by the outer surfaces of the one side portion 13a and the other side portion 13b). Then, when the one side portion 13a is completely seated on the fixing surface 14a, the pushing of the external cable 21 by the L-shaped member 13 stops, and the external cable 21 is held by the L-shaped member 13 at that position. Finally, the L-shaped member 13 is completely fixed to the terminal block 14 by the screw 31.

[0035] Next, the rotational operation force applied to the L-shaped member 13 will be described with reference to FIGS. 9 and 10.

[0036] FIG. 9 is a diagram showing the relationship between the rotational operation force applied to the L-shaped member 13 and the reaction force from the external cable 21 from the viewpoint of the pushing amount of the external cable 21. The horizontal axis in FIG. 9 indicates the pushing amount of the external cable 21. The vertical axis in FIG. 9 indicates the magnitude of the load. The solid line in FIG. 9 indicates the reaction force from the external cable 21. The two-dot chain line in FIG. 9 indicates the rotational operation force applied to the L-shaped member 13.

[0037] As shown in FIG. 9, the rotational operation force applied to the L-shaped member 13 is always smaller than the reaction force from the external cable 21 regardless of the value of the pushing amount of the external cable 21.

[0038] FIG. 10 is a diagram showing the relationship between the rotational operating force on the L-shaped member 13 and the reaction force from the external cable 21 from the viewpoint of the amount of rotation angle of the L-shaped member 13. The horizontal axis in FIG. 10 indicates the amount of rotation angle of the L-shaped member 13. The vertical axis in FIG. 10 indicates the magnitude of the load. The solid line in FIG. 10 indicates the reaction force from the external cable 21. The two-dot chain line in FIG. 10 indicates the rotational operating force on the L-shaped member 13. Note that the amount of rotation angle of the L-shaped member 13 is set to "0" for the state immediately after the L-shaped member 13 shown in FIG. 6 is caught.

[0039] As shown in FIG. 10, the rotational operating force on the L-shaped member 13 is always smaller than the reaction force from the external cable 21 regardless of the value of the amount of rotation angle of the L-shaped member 13.

[0040] The rotational operating force on the L-shaped member 13 depends on the length facing the diagonal, which is the length between the width-direction end faces of one side portion 13a and the width-direction end face of the other side portion 13b. Further, the rotational operating force acts in a direction perpendicular to the length direction of the length facing the diagonal of the L-shaped member 13. For this reason, the rotational operating force can be made smaller as the length facing the diagonal of the L-shaped member 13 becomes longer. For this reason, as described above, the electronic device according to Embodiment 1 makes the width of the other side portion 13b longer than the width of the one side portion 13a so as to increase the length facing the diagonal of the L-shaped member 13. As a result, the electronic device according to Embodiment 1 can rotate the L-shaped member 13 with a rotational operating force smaller than the reaction force of the external cable 21.

[0041] Next, the terminal block 14A having the relief space portion 14c will be described with reference to FIGS. 11 and 12. FIG. 11 is a diagram showing the fixing structure between the L-shaped member 13 and the terminal block 14A. FIG. 12 is a diagram showing the terminal block 14A having the relief space portion 14c.

[0042] As shown in FIGS. 11 and 12, the terminal block 14A may have a relief space portion 14c. The relief space portion 14c is provided at the base of the hooking portion 14b. This relief space portion 14c is a space formed to be concave from the front end of the fixing surface 14a toward the rear side of the housing 11. That is, the relief space portion 14c is formed so as to notch the front end of the fixing surface 14a. In this way, by having the relief space portion 14c, the terminal block 14A can obtain a space for allowing the notch portion 13e to escape from the hooking portion 14b toward the rear side during the rotation operation with respect to the L-shaped member 13. For this reason, the electronic device according to the first embodiment can suppress the contact of the notch portion 13e with the hooking portion 14b. As a result, the electronic device according to the first embodiment can facilitate the rotation operation with respect to the L-shaped member 13.

[0043] As described above, the electronic device according to the first embodiment can wire the external cable 21 with a rotation operation force smaller than the reaction force of the external cable 21.

[0044] Second Embodiment. The electronic device according to the second embodiment will be described with reference to FIGS. 13 to 14. FIG. 13 is an enlarged view of the main part of the electronic device according to the second embodiment. FIG. 14 is a comparison diagram between the screw 31 according to the first embodiment and the screw 32 according to the second embodiment. Note that components having the same functions as those described in the first embodiment above are denoted by the same reference numerals, and their descriptions are omitted.

[0045] The electronic device according to the first embodiment wires the external cable 21 by using the rotation operation force with respect to the L-shaped member 13. On the other hand, as shown in FIG. 13, the electronic device according to the second embodiment wires the external cable 21 by using the axial force of the screw 32 for fixing the L-shaped member 13. The electronic device according to the second embodiment includes a screw 32 instead of the screw 31 of the electronic device according to the first embodiment. The screw 32 according to the second embodiment is a screw longer than the screw 31 according to the first embodiment.

[0046] As shown in FIG. 4, in the electronic device according to Embodiment 1, two screws 31 are arranged side by side in the front-rear direction of the housing 11 with respect to one terminal block 14. On the other hand, as shown in FIG. 13, in the electronic device according to Embodiment 2, each of the screws 31 and 32 is provided one by one with respect to one terminal block 14, and these are arranged side by side in the front-rear direction. At this time, the screw 31 is arranged on the front side, and the screw 32 is arranged on the rear side. That is, the screw 32 is arranged closer to the other side portion 13b than the screw 31 at the one side portion 13a and the terminal block 14. That is, the screw 32 is arranged on the rear side of the housing 11 with respect to the screw 31. In FIGS. 13 and 14, only the screws 31 and 32 arranged on the other side portion 13b side are shown.

[0047] As shown in FIG. 14A, in the electronic device according to Embodiment 1, after wiring the external cable 21 using the rotational operating force on the L-shaped member 13, the L-shaped member 13 is fixed to the terminal block 14 using the screw 31. Therefore, the axial length of the screw 31 only needs to be a length that can simply fix the L-shaped member 13 to the terminal block 14.

[0048] Here, as shown in FIG. 14A, let the axial length of the screw 31 be L1, the thickness of the one side portion 13a be t, the pitch of the screw 31 be P1, and the length of the screw hole (female screw) of the terminal block 14 be a. For example, when the screw hole is a through hole, L1 is a value of (t + a) or more. When the screw hole is a non-through hole, L1 is a value of (t + 3P1) or more. That is, the axial length L1 needs to be a length of 3 pitches or more, and the depth of the screw hole that is a non-through hole needs to be a depth at which the tip of the screw 31 does not contact the bottom surface thereof. The screw hole of the terminal block 14 shown in FIG. 4 is a through hole.

[0049] On the other hand, as shown in FIG. 14B, in the electronic device according to Embodiment 2, the force for pushing in the L-shaped member 13 is the axial force when tightening the screw 32, rather than the rotational operating force on the L-shaped member 13. Therefore, the axial length of the screw 32 needs to be longer than the axial length of the screw 31.

[0050] Also, when using the screw 32 with an increased axial length in this way, the screw through-hole in the one-side edge portion 13a corresponding to the screw hole of the terminal block 14 to which the screw 32 is fastened is formed as an elongated hole having a major axis in the front-rear direction of the housing 11 (in other words, in the width direction of the one-side edge portion 13a). For this reason, when the screw 32 is inserted into the screw through-hole of the one-side edge portion 13a, the L-shaped member 13 allows movement (displacement) in the front-rear direction of the housing 11. As a result, in the electronic device according to the second embodiment, the axial force of the screw 32 can be applied to the external cable 21 through the outer surface of the other-side edge portion 13b of the L-shaped member 13 (including the outer corner formed by the outer surfaces of the one-side edge portion 13a and the other-side edge portion 13b) from a state where the L-shaped member 13 is greatly inclined with respect to the fixing surface 14a.

[0051] Therefore, when the L-shaped member 13 receives the axial force of the screw 32 when the one-side edge portion 13a is fixed to the terminal block 14, the other-side edge portion 13b rotates toward the rear side of the housing 11 with the contact point where the one-side edge portion 13a contacts the terminal block 14 as the rotation center, and thus the existing external cable 21 inside the housing 11 can be pushed toward the rear side of the housing 11. That is, all the existing external cables 21 are pushed toward the rear side of the housing 11 by the outer surface of the other-side edge portion 13b of the rotating L-shaped member 13 (including the outer corner formed by the outer surfaces of the one-side edge portion 13a and the other-side edge portion 13b).

[0052] Here, as shown in FIG. 14B, let the axial length of the screw 32 be L2, the thickness of one side portion 13a be t, the pitch of the screw 32 be P2, the length of the screw hole (female screw) of the terminal block 14 be a, the distance from the contact point of one side portion 13a to the rear end on the outer peripheral surface of the screw 32 be b, and the inclination angle of the lower surface of one side portion 13a with respect to the fixing surface 14a be θ. For example, when the screw hole is a through hole, L2 is a value of [(t / cosθ) + b·tanθ + a] or more. When the screw hole is a non-through hole, L2 is a value of [(t / cosθ) + b·tanθ + 3P2] or more. That is, the axial length L2 needs to be a length of 3 pitches or more, and the depth of the screw hole that is a non-through hole needs to be a depth at which the tip of the screw 32 does not contact its bottom surface. The depth of the screw hole is a value of [(t / cosθ) + b·tanθ + 3P2 - t] or more.

[0053] Specifically, as shown in FIG. 10, the electronic device according to Embodiment 2 employs a screw 32 that can obtain an axial force in the range from point M to point N in the rotation angle amount of the L-shaped member 13. Therefore, the electronic device according to Embodiment 2 can replace the rotational operation force on the L-shaped member 13 with the axial force of the screw 32.

[0054] In the electronic device according to Embodiment 2, one screw 31 and one screw 32 may be provided corresponding to one terminal block 14, and two screws 31 may be provided corresponding to the other terminal block 14.

[0055] As described above, the electronic device according to Embodiment 2 can wire the external cable 21 with the axial force of the screw 32, which is smaller than the reaction force of the external cable 21.

[0056] Embodiment 3. The electronic device according to Embodiment 3 will be described with reference to FIGS. 15 and 16. FIG. 15 is a diagram showing the fixing structure between the L-shaped member 13 and the terminal block 14B in the electronic device according to Embodiment 3. FIG. 16 is a diagram showing the state when the L-shaped member 13 is rotationally operated. Note that components having the same functions as those described in Embodiment 1 above are denoted by the same reference numerals, and their descriptions are omitted.

[0057] The electronic device according to Embodiment 1 forms a rotation mechanism by hooking the notch portion 13e of the L-shaped member 13 and the hooking portion 14b of the terminal block 14B with each other. On the other hand, as shown in FIG. 15, the electronic device according to Embodiment 3 forms a rotation mechanism by providing a hinge 41 between the L-shaped member 13 and the terminal block 14B. That is, the electronic device according to Embodiment 3 includes a hinge 41 instead of the notch portion 13e, the hooking portion 14b, and the screw 31 disposed on the front side.

[0058] As shown in FIGS. 15 and 16, the electronic device according to Embodiment 3 includes a hinge 41. The hinge 41 is provided between the lower surface of one side portion 13a of the L-shaped member 13 and the fixing surface 14a of the terminal block 14B.

[0059] The hinge 41 is, for example, a flat hinge and is composed of two blades (hinge pieces) and a rotating shaft connecting them. In this case, one blade is attached to the lower surface of one side portion 13a. The other blade is attached to the fixing surface 14a. Further, the rotating shaft of the hinge 41 is arranged along the width direction of the housing 11 and is arranged so as to be sandwiched between the front end of the lower surface of one side portion 13a and the front end of the fixing surface 14a.

[0060] Also, the hinge 41 is arranged on the front side of the housing 11 rather than the screw 31 when the one side portion 13a is fixed to the fixing surface 14a. The axial length of the screw 31 is formed longer by the amount by which the hinge 41 is sandwiched than the axial length of the screw 31 according to Embodiment 1 that does not include the hinge 41. That is, the axial length of the screw 31 according to Embodiment 3 is formed longer by the thickness t41 of the folded hinge 41 (see FIG. 16C).

[0061] Therefore, when holding the existing external cable 21 in the electronic device according to Embodiment 3, first, a pair of left and right terminal blocks 14B are fixed inside the housing 11. Then, one side portion 13a of the L-shaped member 13 is attached to the fixing surface 14a of the fixed terminal block 14B via the hinge 41.

[0062] Next, as shown in FIGS. 16A and 16B, a rotational operation force is applied to the other side portion 13b of the L-shaped member 13 toward the rear side of the housing 11. For this reason, the L-shaped member 13 rotates such that the other side portion 13b rotates toward the rear side of the housing 11 with the rotation axis of the hinge 41 as the center of rotation. In other words, the L-shaped member 13 rotates such that the one side portion 13a approaches the fixed surface 14a.

[0063] As a result, all the existing external cables 21 are pushed toward the rear side of the housing 11 by the outer surface of the other side portion 13b of the rotating L-shaped member 13 (including the outer corner formed by the outer surfaces of the one side portion 13a and the other side portion 13b). Then, when the one side portion 13a is completely seated on the fixed surface 14a, the pushing of the external cable 21 by the L-shaped member 13 stops, and the external cable 21 is held by the L-shaped member 13 at that position. Finally, as shown in FIG. 16C, the L-shaped member 13 is completely fixed to the terminal block 14B by the screw 31. The screw 31 is fastened in a state where the hinge 41 is folded.

[0064] As described above, the electronic device according to the third embodiment can route the external cable 21 with a rotational operation force smaller than the reaction force of the external cable 21.

[0065] Embodiment 4. The electronic device according to the fourth embodiment will be described with reference to FIG. 17. FIG. 17 is a side view of the L-shaped member 13 in the electronic device according to the fourth embodiment. Note that components having the same functions as those described in the first to third embodiments are denoted by the same reference numerals, and the description thereof is omitted.

[0066] In the electronic devices according to the first to third embodiments, a frictional force is generated when the outer corner formed by the outer surface of the one side portion 13a and the outer surface of the other side portion 13b of the L-shaped member 13 comes into contact with the existing external cable 21, and the external cable 21 is held by this frictional force.

[0067] Therefore, in the electronic device according to the fourth embodiment, a friction force generating member having a large friction coefficient is provided for the L-shaped member 13. The friction force generating member is provided on the outer surface of the L-shaped member 13 so as to cover the outer corner portion. The friction force generating member has a roughened surface or is formed of resin in order to obtain a high friction coefficient.

[0068] FIG. 17 shows an example in which the friction force generating member is an elastic member 15 made of a sponge or rubber formed of an elastic resin. The elastic member 15 is attached to the L-shaped member 13 by, for example, an adhesive or a double-sided tape. Therefore, the L-shaped member 13 can hold the external cable 21 by utilizing the high friction force of the elastic member 15. Further, since the L-shaped member 13 pushes in the external cable 21 via the elastic member 15, damage to the external cable 21 due to this pushing can be suppressed.

[0069] Note that within the scope of the present disclosure, free combinations of the respective embodiments, or modifications of any components in each embodiment, or omissions of any components in each embodiment are possible.

[0070] Hereinafter, the various embodiments of the present disclosure will be collectively described as appendices.

[0071] (Appendix 1) A terminal block supported inside the housing, an L-shaped member having one side fixed to the terminal block and the other side arranged to intersect the one side and to which a rotational operating force is applied, a hook portion provided on the terminal block, and a notch portion provided on the one side and capable of being hooked to the hook portion. The L-shaped member When a rotational operating force is applied to the other side portion in a state where the notch portion is hooked on the hooking portion, the other side portion rotates toward the rear side of the housing about an engagement point where the notch portion and the hooking portion are hooked on each other, thereby pushing the first cable already provided inside the housing toward the rear side of the housing. An electronic device characterized by the above. (Supplementary Note 2) The terminal block is formed in a concave shape from the base of the hooking portion toward the rear side of the housing, and has a relief space portion for allowing the notch portion to escape from the hooking portion toward the rear side of the housing during the rotational operation with respect to the L-shaped member. The electronic device according to Supplementary Note 1, characterized by the above. (Supplementary Note 3) A terminal block supported inside the housing, an L-shaped member having one side portion fixed to the terminal block with a screw and the other side portion arranged to intersect the one side portion, The L-shaped member is When receiving the axial force of the screw when the one side portion is fixed to the terminal block, the other side portion rotates toward the rear side of the housing about a contact point where the one side portion contacts the terminal block, thereby pushing the first cable already provided inside the housing toward the rear side of the housing. An electronic device characterized by the above. (Supplementary Note 4) formed in the one side portion and provided with a screw through hole through which the screw passes, The screw through hole is an elongated hole whose major axis is arranged in the front-rear direction of the housing. The electronic device according to Supplementary Note 3, characterized by the above. (Supplementary Note 5) A terminal block supported inside the housing, an L-shaped member having one side portion fixed to the terminal block via a hinge and the other side portion arranged to intersect the one side portion, The L-shaped member is When a rotational operating force is applied to the other side portion, the other side portion rotates toward the rear side of the housing about the rotation axis of the hinge, thereby pushing the first cable already provided inside the housing toward the rear side of the housing. An electronic device characterized by the above. (Supplementary Note 6) The hinge is disposed on the front side of the housing with respect to the screw in a state where the one side portion is fixed to the terminal block. The electronic device according to Supplementary Note 5, characterized by the above. (Supplementary Note 7) The one side portion and the other side portion have the width direction of the housing as the length direction, and the width of the other side portion is longer than the width of the one side portion. The electronic device according to any one of Supplementary Notes 1, 2, 5, and 6, characterized by the above. (Supplementary Note 8) The terminal block has a fixing surface for fixing the one side portion, and the fixing surface gradually inclines from the rear side to the front side of the housing. The electronic device according to any one of Supplementary Notes 1 to 7, characterized by the above. (Supplementary Note 9) It includes a frictional force generating member provided so as to cover the outer corner portion formed by the outer surface of the one side portion and the outer surface of the other side portion. The electronic device according to any one of Supplementary Notes 1 to 8, characterized by the above. (Supplementary Note 10) The one side portion has a cable insertion hole through which the second cable is inserted, and the other side portion has a cable attachment hole for attaching the second cable. The electronic device according to any one of Supplementary Notes 1 to 9, characterized by the above.

Explanation of Reference Numerals

[0072] 11 housing, 12 communication device, 13 L-shaped member, 13a one-side portion, 13b the other-side portion, 13c cable insertion hole, 13d cable attachment hole, 13e notch portion, 14, 14A, 14B terminal blocks, 14a fixing surface, 14b hook portion, 14c relief space portion, 15 elastic member, 21 external cable, 21a connector, 22 in-rack cable, 22a support member, 31, 32 screws, 41 hinge.

Claims

1. A terminal block supported inside a housing, an L-shaped member having one side fixed to the terminal block and the other side arranged to intersect the one side and to which a rotational operating force is applied, a hooking portion provided on the terminal block, a notch portion provided on the one side and capable of being hooked to the hooking portion, wherein the L-shaped member when a rotational operating force is applied to the other side with the notch portion hooked to the hooking portion, the other side rotates toward the rear side of the housing about an engagement point where the notch portion and the hooking portion are hooked to each other, thereby pushing a first cable already provided inside the housing toward the rear side of the housing An electronic device characterized by the above.

2. The terminal block is formed in a concave shape from the base of the hooking portion toward the rear side of the housing, and has a relief space portion for releasing the notch portion from the hooking portion toward the rear side of the housing during the rotational operation with respect to the L-shaped member An electronic device according to claim 1, characterized by the above.

3. A terminal block supported inside a housing, an L-shaped member having one side fixed to the terminal block with a screw and the other side arranged to intersect the one side, wherein the L-shaped member when receiving the axial force of the screw when the one side is fixed to the terminal block, the other side rotates toward the rear side of the housing about a contact point where the one side contacts the terminal block, thereby pushing a first cable already provided inside the housing toward the rear side of the housing An electronic device characterized by the above.

4. The one side is formed with a screw through hole through which the screw passes, wherein the screw through hole is an elongated hole whose major axis is arranged in the front-rear direction of the housing An electronic device according to claim 3, characterized by the above.

5. A terminal block supported inside a housing, an L-shaped member having one side fixed to the terminal block via a hinge and the other side arranged to intersect the one side, wherein the L-shaped member when a rotational operating force is applied to the other side, the other side rotates toward the rear side of the housing about the rotation axis of the hinge, thereby pushing a first cable already provided inside the housing toward the rear side of the housing An electronic device characterized by the above.

6. The hinge is disposed on the front side of the housing rather than a screw in a state where the one-side edge portion is fixed to the terminal block. The electronic device according to claim 5, characterized in that.

7. The one-side edge portion and the other-side edge portion have the width direction of the housing as the length direction, The width of the other-side edge portion is longer than the width of the one-side edge portion. The electronic device according to any one of claims 1, 2, 5, and 6, characterized in that.

8. The terminal block has a fixing surface for fixing the one-side edge portion, The fixing surface gradually inclines from the rear side to the front side of the housing. The electronic device according to any one of claims 1 to 6, characterized in that.

9. It includes a frictional force generating member provided to cover the outer corner formed by the outer surface of the one-side edge portion and the outer surface of the other-side edge portion. The electronic device according to any one of claims 1 to 6, characterized in that.

10. The one-side edge portion has a cable insertion hole through which the second cable is inserted, The other-side edge portion has a cable attachment hole for attaching the second cable. The electronic device according to any one of claims 1 to 6, characterized in that.

Citation Information

Patent Citations

  • Electronic apparatus assembly method

    JP2018107068A