JP5579653B2 - Cable clamp and cable clamp mounting structure - Google Patents

Description

The present invention relates to a cable clamp used for an electronic device in which an electronic component such as a communication device is mounted, and mainly a cable clamp and a cable that can easily fix an optical cable wiring (optical fiber wiring) of an electronic package such as a communication device. The present invention relates to a clamp mounting structure .

  A communication device has an important role as an information infrastructure socially, and is required to stably maintain performance over a long period of time, and is required to operate stably for a long period of time.

  Today, communication devices are mounted with a high density of electronic circuits as the volume of data such as image signals increases. An optical device is mounted on an electronic package of a communication apparatus, and a large number of electronic devices are accommodated together with a large number of electronic components.

  Therefore, an optical cable must be wired together with many electronic components on the printed wiring board. Conventionally, the optical cable wiring does not interfere with the electronic components 3 and 5 on the printed wiring board 1 as shown in FIG. A plurality of cable clamps 7 made of synthetic resin are arranged on the route, and the optical cable 9 is held and fixed to each cable clamp 7.

  As shown in FIG. 12 to FIG. 14, the cable clamp 7 includes a rectangular clamp portion 11 formed in a frame shape and a snap portion 13 formed integrally with the lower portion of the clamp portion 11. ing.

  The clamp portion 11 includes a pair of cable holding pieces 17 and 19 extending upward from both ends of a rectangular mounting base 15 in plan view, and a lid body connected to one cable holding piece 19 via a hinge 21. 23. A hook 25 is formed at the free end of the lid 23, and an engaging portion (not shown) for engaging the hook 25 is provided at the other end of the cable holding piece 17. The optical cable 9 can be held and fixed in the clamp portion 11 by an opening / closing operation in the vertical direction (in the direction of the arrow in FIG. 14) of the lid body 21 centering on the center.

  As is well known in the art, the snap portion 13 is provided so as to project obliquely downward from one snap column 27 projecting from the back surface of the mounting base 15 and the connecting portion between the snap column 27 and the mounting base 15. A pair of elastic support pieces 29 and a pair of elastic pieces 31 formed at the head (tip) of the snap column 27, the elastic pieces 31 project obliquely upward. The functions of the elastic piece 31 and the elastic support piece 29 are well known.

  A cylindrical rotary insertion portion 33 is provided at the base of the snap support 27 to be inserted into a circular cable clamp attachment hole (hereinafter referred to as “attachment hole”) formed in the printed wiring board 1. The cable clamp 7 mounted on the printed wiring board 1 is rotated by the insertion portion 33 so that the direction can be easily changed in any direction.

  In this way, in order to force the route of the optical cable 9, as shown in FIG. 11, the printed wiring board 1 is provided with circular mounting holes in plan view along the predetermined cable route, and the cable clamps 7 (snaps) are formed in the mounting holes. 13) is inserted and arranged in a circular shape, and the optical cable 9 is wound around each cable clamp 7 to perform extra length processing.

  However, when the cable clamp 7 is arranged on the printed wiring board 1, the optical cable 9 does not interfere with the electronic components 3, 5, particularly the high heat generation electronic component (hereinafter referred to as “high heat generation component”), and the optical cable 9 is not damaged. Thus, since the position of the cable clamp 7 must be determined and arranged, the arrangement of the cable clamp 7 is limited, and the mounting of high heat-generating parts is also limited.

  Similarly, when there is an electronic component with a high mounting height, a cable clamp must be disposed so that the electronic component and the optical cable 9 do not interfere with each other, and there is a limitation in mounting the cable clamp 7 and the electronic component.

  Further, when the wiring destinations of the optical cables 9 are different, a plurality of optical cables 9 are used to divide the wiring route as shown in FIG. 11, but when a plurality of optical cables 9 are used in this way, the optical cables 9 are connected to each other with the same cable clamp. 7 (clamp portion 11), the wiring workability is inferior, and the optical cables 9 are congested and easily entangled. In particular, the ultrafine cable with a diameter of 0.25 mm is more likely to cause congestion between cables, which is one factor that hinders the efficiency of manufacturing and assembly.

  Further, in Patent Document 1, a snap portion 39 of the same cable clamp 37 can be connected to a support portion 35 formed in an H-shaped section as shown in FIGS. A cable clamp 37 is disclosed in which more cables can be easily held by the clamp portion 45 without further providing the mounting holes 43 of the cable clamp 37 in the mounting object such as the panel 41 when the number of the cables increases. ing.

JP 2001-7564 A

  However, the cable clamp 37 connects the snap portion 39 of the other cable clamp 37 to the support portion 35 and expands the cable clamp 37 along the panel 41 in the horizontal direction. Similarly, it is not possible to cope with a case where there is an electronic component or a high heat generating component with a high mounting height on the panel 41, and there is a limitation on the arrangement of the cable clamp 37 and the cable.

The present invention has been devised in view of such circumstances, and a cable clamp that solves the above-described problems and improves the freedom and wiring properties of optical cable wiring, the freedom of electronic component mounting, and thus the freedom of design. And it aims at providing the attachment structure of a cable clamp .

According to one aspect, the cable clamp stores an optical cable wired on a printed wiring board and holds the optical cable, a storage unit generated from a band shape, an open position for opening the storage unit, and the storage A clamp part that rotates between a closed position that closes the part and is generated with the same width as the storage part, and a lower part of the clamp part, and is provided on the printed wiring board. And extending from the lower part of the clamp part to the lower part of the clamp part so that the width between the snap part inserted into the mounting hole and the tip part is wider than the width of the storage part. In addition, when the snap portion is inserted into the mounting hole, the clamp portion is pressed against one surface of the printed wiring board on the side where the clamp portion is located, and the clamp portion is lifted from the one surface of the printed wiring board. And at least a pair of elastic support pieces having the same width as the storage portion, and an inclination of the snap portion toward the outside of the clamp portion, and an axial direction of the column of the snap portion In the above, when the gap between the tip of the at least one pair of elastic support pieces is at least a gap narrower than the thickness of the printed wiring board and the snap portion is inserted into the mounting hole, A pair of elastic pieces pressed against a surface opposite to the one surface of the wiring board, provided on the support column of the snap portion, at least a portion is inserted when the snap portion is inserted into the mounting hole, The rotation insertion portion that becomes a rotation axis when rotating the clamp portion and the snap portion with respect to the printed wiring board, and the small number of other cable clamps attached to the lid body. Both when the pair of elastic support piece is rotated the rotary insertion portion as a rotation axis, generated from said at least one pair of disc-shaped, which is set to a larger diameter than the diameter of the rotating locus of the tip portion of the elastic support piece A pedestal provided on the upper part of the lid of the clamp part, the disk-shaped pedestal and the lid provided so as to pass through, and when the snap part of the other cable clamp is inserted And an insertion hole into which at least a part of the rotational insertion portion can be inserted.

Further, according to one aspect, the cable clamp stores an optical cable wired on a printed wiring board and holds the optical cable, a storage unit generated from a band shape, and an open position that opens the storage unit. A clamp part having a lid that rotates between a closed position that closes the storage part, a snap part provided at a lower part of the clamp part, and inserted through an attachment hole provided in the printed wiring board; In addition to extending from the lower part of the clamp part to the lower part of the clamp part so that the width between the tip parts is wider than the width of the storage part, the snap part is inserted into the mounting hole. A width of the storage portion that is pressed against one surface of the printed wiring board on the side where the clamp portion is located and supports the clamp portion in a state of being floated from the one surface of the printed wiring board; At least a pair of elastic support pieces having a width, and at least a pair of elastic support pieces inclined from the tip of the snap portion toward the outside of the clamp portion and in the axial direction of the support column of the snap portion. When the gap between the front end and the front end of the printed wiring board is extended so that the gap is narrower than the thickness of the printed wiring board and the snap portion is inserted into the mounting hole, A pair of elastic pieces pressed against the surface to be formed, and a column of the snap portion, and at least part of the snap portion is inserted when the snap portion is inserted into the mounting hole, and the clamp portion and the snap portion are printed on the print portion. A rotation insertion portion serving as a rotation axis when rotating with respect to the wiring board, and the lid body is the at least one pair of other cable clamps attached to the lid body. When the elastic support piece is rotated the rotary insertion portion as a rotation axis, said generated at least a pair of disc-shaped, which is set to a larger diameter than the diameter of the rotating locus of the tip portion of the elastic support piece, wherein The lid has an insertion hole into which at least a part of the rotation insertion portion can be inserted when the snap portion of the other cable clamp is inserted.

Also, according to one aspect, the cable clamp mounting structure is a cable clamp mounting structure in which a plurality of cable clamps are stacked and mounted in a direction orthogonal to the upper surface of the printed wiring board. The upper portion of the cable clamp snap portion is inserted into either the disk-shaped base provided on the lower cable clamp and the insertion hole penetrating the lid body, or the insertion hole penetrating the lid body. The disk-shaped base and the lid provided on the cable clamp located on the lower side by the pair of elastic support pieces and the pair of elastic pieces provided on the cable clamp located on the upper side, or Holding the lid, the upper cable clamp is rotatably held by the lower cable clamp. And wherein the Rukoto.

  In this case, among the plurality of cable clamps to be stacked and attached, the snap portion of the cable clamp located at the bottom is inserted into the mounting hole of the printed wiring board, and the pair of the cable clamps provided at the cable clamp located at the bottom is provided. Preferably, the printed wiring board is sandwiched between an elastic support piece and the pair of elastic pieces, and at least the lowermost cable clamp is rotatably held on the printed wiring board.

  According to the invention according to each claim, even if an electronic component of a high heat generation component is mounted on the cable route, for example, the optical cable is clamped by the upper cable clamp having a high position by using the cable clamp attached to the upper and lower two stages. Since the optical cable can be processed for an extra length without touching the electronic components by holding and fixing at the part, the degree of freedom of the optical cable wiring is improved compared to the conventional case, and at the lower part and the vicinity of the cable clamp. Since high heat-generating components can be mounted, there is an advantage that the degree of freedom in design is improved.

  In addition, when the cable clamps are attached to the upper and lower two stages, the optical cable can be fixed at the upper and lower clamp parts, so that the optical cable can be routed independently for each wiring destination. However, there is an advantage that the degree of freedom of optical cable wiring is improved.

Further, when used in the to case Burg lamp upper and lower stages, it is possible to rotate the orientation of the upper cable clamp, it is possible to make a separate cable route to the lower side of the cable route, the optical cable The wiring property is improved.

Further, by forming the pedestal in a round shape in plan view, that to be able to also rotate the upper cable clamp in any direction, to reduce the installation area compared to a case where the pedestal for example square in plan view shape Has the advantage that

It is explanatory drawing which shows the usage example of the cable clamp which concerns on 1st embodiment of this invention. It is a perspective view from diagonally upward of a cable clamp. It is a perspective view from the slanting lower part of a cable clamp. It is a front view of a cable clamp. It is a perspective view from the diagonal upper direction of the usage example which attached another cable clamp to the base of a cable clamp. It is a front view of the usage example which attached another cable clamp to the base of a cable clamp. It is a perspective view from diagonally upward of the cable clamp which concerns on 2nd embodiment of this invention. It is a perspective view from the slanting lower part of a cable clamp. It is a front view of a cable clamp. It is a perspective view from diagonally downward of the cable clamp which concerns on 3rd embodiment of this invention. It is explanatory drawing which shows the usage example of the conventional cable clamp. It is a perspective view from the slanting lower part of a cable clamp. It is a perspective view from diagonally upward of a cable clamp. It is a front view of a cable clamp. It is a perspective view from diagonally upward of the conventional cable clamp. It is explanatory drawing which shows the usage example of a cable clamp.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows an example of use of a cable clamp according to the first embodiment of the present invention. In the figure, 51 is a printed wiring board, 53 and 55 are electronic components mounted on the printed wiring board 51, although not shown, Many other electronic components are mounted on the plate 51, and the electronic components 53 and 55 are high heat-generating components having a higher mounting height than other electronic components (not shown).

  Then, on the printed wiring board 51, three optical cables 59, 61, 63 having different wiring destinations are processed in a circular length through a plurality of cable clamps 57 according to the present embodiment.

  2 to 6 show details of the cable clamp 57, and the cable clamp 57 of the present embodiment is similar to the cable clamp 7 of FIG. The clamp portion 65 includes a snap portion 67 formed integrally with the lower portion of the clamp portion 65, and the clamp portion 65 extends upward from both ends of a mounting base 69 formed in a rectangular shape in plan view. 73, and a lid 77 connected to one cable holding piece 73 via a hinge 75.

  A hook 79 is formed at the tip of the lid 77, and an engaging portion (not shown) for engaging the hook 77 is provided at the tip of the other cable holding piece 69. The optical cables 59, 61, 63 can be held and fixed in the clamp part 65 by opening / closing the body 77 in the vertical direction (the arrow direction in FIG. 4).

  Similarly to the snap portion 13 of FIG. 12, the snap portion 67 is also oblique from the one snap column 81 projecting from the back surface of the mounting base 69 and the connecting portion of the snap column 81 and the mounting base 69. The elastic piece 83 includes a pair of elastic support pieces 83 projecting downward and a pair of elastic pieces 85 formed at the head (tip) of the snap column 81, and the elastic piece 83 projects obliquely upward. A cylindrical rotation insertion portion 87 is provided at the base of the snap column 81 and is inserted into a mounting hole having a circular shape in plan view formed in the printed wiring board 51, and is mounted on the printed wiring board 51. The cable clamp 57 is rotated by a rotary insertion portion 87 inserted in the mounting hole, so that the cable clamp 57 can be easily changed in any direction.

  The cable clamp 57 according to this embodiment is characterized in that a circular pedestal 89 having a larger diameter than the width of the lid 77 is integrally formed at the upper center of the lid 77.

  As shown in FIGS. 2 to 4, the pedestal 89 has substantially the same thickness as the thickness of the lid 77. The center of the pedestal 89 coincides with the center of the lid 77, and a mounting hole 91 having a circular shape in plan view is provided in the vertical direction from the center of the pedestal 89 to the lid 77.

  The mounting hole 91 has the same diameter as the mounting hole formed in the printed wiring board 51. Then, as shown in FIGS. 5 and 6, when the snap support 81 of another cable clamp 57 is inserted into the mounting hole 91 from above and the rotation insertion portion 87 is inserted, the pair of elastic support pieces 83 and the pair of The base 89 and the lid 77 are sandwiched from above and below by the elastic piece 85, and another cable clamp 57 is attached on the base 89 in a stack.

  Since the pedestal 89 is formed in a circular shape in plan view, when the cable clamps 57 are stacked in two upper and lower stages and mounted on the printed wiring board 51 as shown in FIG. 5, the upper cable clamps 57 as shown by arrows. Is rotated by a rotary insertion portion 87 inserted in the mounting hole 91, and the direction can be easily changed in any direction.

  The cable clamp 57 according to the present embodiment is configured as described above. Next, a method of wiring the optical cables 59, 61, 63 using the cable clamp 57 will be described.

  As described above, in the past, for example, when mounting a plurality of electronic components on a printed wiring board and wiring a plurality of optical cables for each of a plurality of wiring destinations, in order to prevent damage to the optical cable, an optical cable is used for the high heat generation component. The position of the cable clamp was determined so as not to interfere, and the position of the cable clamp was determined avoiding electronic components with high mounting height. As a result, there are limitations on the mounting of cable clamps and electronic components.

  However, as shown in FIGS. 5 and 6, the cable clamp 57 according to the present embodiment can be mounted in a stack on the pedestal 89, so that two upper and lower stages are provided as shown in FIG. 1. By laying the optical cable 63 to the clamp portion 65 of the upper cable clamp 57, the optical cable can be wired above these without interfering with the electronic components 53 and 55 which are high in mounting height and are heat generating components. Optical cable wiring is possible by using a single cable clamp 57 for the cable route that does not interfere with the electronic components 53 and 55.

  Therefore, when the optical cables 59, 61, 63 are wired for each of the three wiring destinations A, B, C as shown in FIG. 1, whether the electronic components 53, 55 are mounted on the printed wiring board 57 of the cable route, Depending on whether or not the cable route is close to the electronic components 53 and 55, the cable clamp 57 can be mounted on the printed wiring board 57 as a single product, or the cable clamp 57 can be mounted in two upper and lower stages as shown in FIG. That's fine.

  Then, each cable clamp 57 attached to the mounting hole as a single item or in two upper and lower stages is rotated by the rotary insertion portion 87 to adjust the clamp portion 65 in a predetermined direction, and the wiring destination A, The lid 77 of each cable clamp 57 is opened for each of B and C, and the optical cables 59, 61, 63 are held and fixed to the clamp portion 65, and the pedestal 89 is formed in a circular shape in plan view. Therefore, the operator can freely change the direction of the upper cable clamp 57 in the upper and lower cable clamps 57 in any direction. As shown in FIG. 1, since the electronic components 53 and 55 are mounted on the printed wiring board 57 in the cable route of the wiring destination C, the upper cable clamps 57 of the four cable clamps 57 attached in the upper and lower two stages. If the optical cable 63 is held by the clamp part 65, the optical cable 63 can be processed into a circular shape above the optical parts 53 and 55 without interfering with the electronic parts 53 and 55.

  Further, as shown in FIG. 1, the optical cable wirings of the wiring destinations A and B are each composed of two cable clamps 57 attached as a single product and two cable clamps 57 attached in two upper and lower stages. By holding the optical cables 59 and 61 in the clamp portion 65, the optical cables 59 and 61 can be processed in a circular shape independently for each of the wiring destinations A and B.

  As described above, in this embodiment, the base 89 is provided on the upper portion of the lid 77 of the clamp portion 65 of the cable clamp 57, and the mounting hole 91 is provided in the base 89 so that another cable clamp 57 can be rotatably mounted in a stack. It is characterized by doing so.

  Therefore, according to the present embodiment, even if the electronic components 53 and 55 are mounted on the cable route, the optical cable 63 is clamped by the upper cable clamp 57 having a higher position by using the cable clamps 57 attached to the upper and lower stages. By holding and fixing with the portion 65, it becomes possible to process the extra length of the optical cable 63 without touching the electronic components 53 and 55, so that the degree of freedom of the optical cable wiring is improved as compared with the prior art, and the cable clamp Since high heat-generating parts can be mounted below and in the vicinity of 57, there is an advantage that the degree of freedom in design is improved.

  Further, when the cable clamps 57 are attached in two upper and lower stages, the optical cables 59, 61, 63 can be fixed by the upper and lower clamp parts 65, so that the optical cable wiring is performed independently for each wiring destination. This has the advantage that the degree of freedom of optical cable wiring is improved as compared with the prior art.

  Furthermore, in this embodiment, when the cable clamp 57 is used in two upper and lower stages, the direction of the upper cable clamp 57 can be rotated, so that a cable route independent of the lower cable route is created. This has the advantage of improving the wiring properties of the optical cable. Moreover, since the pedestal 89 is formed in a circular shape in plan view in the present embodiment, the upper cable clamp 57 can be rotated in any direction, and the installation area is larger than when the pedestal is square in plan view, for example. It has the advantage that it can be reduced.

  In addition, although the said embodiment demonstrated the case where the cable clamp 57 was attached and used in two steps up and down as shown in FIG.1 and FIG.5, the cable clamp of this embodiment responds to specifications, such as an electronic package, for example. It is also possible to use by stacking in three or more stages.

  In such a case, as shown in FIGS. 7 to 10, four elastic support pieces 83 may be provided to project in four directions obliquely downward from the connecting portion between the snap column 81 and the mounting base 69. According to the cable clamp 93 according to the second embodiment, the snap portion 67-1 can be reinforced.

  Further, in the cable clamp 57 of FIG. 2, a circular pedestal 89 in a plan view is integrally formed at the upper center of the lid 77, but the lid 77-1 itself is a circular pedestal in a plan view as shown in FIG. A mounting hole 91 may be provided at the center.

  Thus, the cable clamp 95 according to the third embodiment can achieve the intended purpose as in the case of the cable clamp 57 of FIG. There is an advantage that the height of the clamp 95 itself can be suppressed.

  Furthermore, although the cable clamp 57 mounted on the printed wiring board has been described in the embodiment of FIG. 1, the present embodiment is not limited to the cable clamp mounted on the printed wiring board. For example, conventionally, a cable clamp is used for a sheet metal that is disposed on a case of a communication device mounted in a rack and used when drawing an optical cable from the outside into the case. Of course, the clamps 57, 93 and 95 can be used.

51 Printed wiring board 53, 55 Electronic parts 57, 93, 95 Cable clamp 59, 61, 63 Optical cable 65, 65-1 Clamp part 67, 67-1 Snap part 69 Mounting base 71, 73 Cable holding piece 75 Hinge 77, 77-1 Lid 79 Hook 81 Snap strut 83 Elastic support piece 85 Elastic piece 87 Rotation insertion part 89 Base 91 Mounting hole

Claims (4)

Rotating between a storage section generated from a band shape that stores the optical cable wired on the printed wiring board and holds the optical cable, and an open position that opens the storage section and a closed position that closes the storage section A clamp part having a lid generated with the same width as the storage part;
A snap portion provided at a lower portion of the clamp portion and inserted through a mounting hole provided in the printed wiring board;
In addition to extending from the lower part of the clamp part to the lower part of the clamp part so that the width between the tip parts is wider than the width of the storage part, the snap part is inserted into the mounting hole. When the clamp portion is positioned, the clamp portion is pressed against one surface of the printed wiring board on the side where the clamp portion is located, and the clamp portion is supported in a state of being floated from the one surface of the printed wiring board. At least a pair of elastic support pieces having a width;
Inclined from the tip of the snap portion toward the outside of the clamp portion, and in the axial direction of the column of the snap portion, the gap between the tip of the at least one pair of elastic support pieces is at least larger than the thickness of the printed wiring board. A pair of elastic pieces that are extended so as to form a narrow gap and are pressed against a surface opposite to the one surface of the printed wiring board when the snap portion is inserted through the mounting hole,
A rotation shaft provided on the support column of the snap portion, at least part of which is inserted when the snap portion is inserted into the mounting hole, and the clamp portion and the snap portion are rotated with respect to the printed wiring board; A rotational insertion part,
When said at least one pair of elastic support pieces other cable clamp attached to the lid is rotated the rotary insertion portion as a rotation axis, wherein at least a pair of elastic support pieces of the rotating locus of the tip diameter A pedestal that is generated from a disk shape that is set to a larger diameter, and is provided on top of the lid of the clamp part;
An insertion hole provided so as to pass through the disk-shaped base and the lid, and capable of inserting at least a part of the rotary insertion portion when the snap portion of the other cable clamp is inserted. When,
A cable clamp characterized by comprising: Rotating between a storage section generated from a band shape that stores the optical cable wired on the printed wiring board and holds the optical cable, and an open position that opens the storage section and a closed position that closes the storage section A clamp having a lid to
A snap portion provided at a lower portion of the clamp portion and inserted through a mounting hole provided in the printed wiring board;
In addition to extending from the lower part of the clamp part to the lower part of the clamp part so that the width between the tip parts is wider than the width of the storage part, the snap part is inserted into the mounting hole. When the clamp portion is positioned, the clamp portion is pressed against one surface of the printed wiring board on the side where the clamp portion is located, and the clamp portion is supported in a state of being floated from the one surface of the printed wiring board. At least a pair of elastic support pieces having a width;
Inclined from the tip of the snap portion toward the outside of the clamp portion, and in the axial direction of the column of the snap portion, the gap between the tip of the at least one pair of elastic support pieces is at least larger than the thickness of the printed wiring board. A pair of elastic pieces that are extended so as to form a narrow gap and are pressed against a surface opposite to the one surface of the printed wiring board when the snap portion is inserted through the mounting hole,
A rotation shaft provided on the support column of the snap portion, at least part of which is inserted when the snap portion is inserted into the mounting hole, and the clamp portion and the snap portion are rotated with respect to the printed wiring board; A rotational insertion part,
Have
When the at least one pair of elastic support pieces of another cable clamp attached to the cover body is rotated about the rotary insertion portion as a rotation axis, the lid body is provided with a distal end portion of the at least one pair of elastic support pieces . generated from a disc shape which is set to a larger diameter than the diameter of the rotating locus,
The cable clamp according to claim 1, wherein the lid has an insertion hole into which at least a part of the rotation insertion portion can be inserted when the snap portion of the other cable clamp is inserted. In the cable clamp mounting structure in which a plurality of the cable clamps according to claim 1 or 2 are stacked and mounted in a direction orthogonal to the upper surface of the printed wiring board,
Out of the plurality of cable clamps, the disk-shaped pedestal provided on the cable clamp located below and the insertion hole that penetrates the lid body or the lid body penetrates through the lid body. The disk-shaped pedestal provided in the cable clamp positioned below the pair of elastic support pieces and the pair of elastic pieces inserted into any of the insertion holes and provided in the cable clamp located in the upper position And a cable clamp mounting structure, wherein the lid or the lid is sandwiched and the upper cable clamp is rotatably held by the lower cable clamp. In the cable clamp mounting structure according to claim 3,
Of the plurality of cable clamps to be stacked and attached, the pair of elastic support pieces provided in the cable clamp located at the lowermost position by inserting the snap portion of the cable clamp located at the lowest position through the attachment hole of the printed wiring board And a pair of elastic pieces to sandwich the printed wiring board, and at least the lowermost cable clamp is rotatably held on the printed wiring board.

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