JP5505899B2 - Fastening structure for protector and bracket for wiring protection, and fixing structure for protector for wiring protection to panel - Google Patents

Description

  The present invention relates to a fastening structure between a protector and a bracket for protecting wiring.

Conventionally, a protector for protecting an electrical wiring used in an automobile or the like is known (see Patent Document 1 below). An example of use of the protector is shown in the sectional view of FIG. As shown in the figure, the protector 91 has a tubular shape, and a wiring 92 passing through the inside is protected by an outer wall 911.
The wiring 92 extends from the end 910 of the protector 91 to the outside. A metal bracket 93 is fastened to the end 910. The bracket 93 has a through hole 930. A rubber grommet 94 is fitted in and held in the through hole 930. The wiring 92 passes through a hole 940 provided in the center of the grommet 94.

The protector 91 and the bracket 93 are fixed to the panel 95 with bolts or the like (not shown). The panel 95 has an insertion hole 950 through which the wiring 92 passes. The grommet 94 is fitted in the insertion hole 950, protects the wiring 92, and seals the periphery of the insertion hole 950 with a seal portion 941.
By adopting the above structure, the wiring 92 can be fixed to the panel 95 together with the protector 91, and the wiring 92 can be prevented from coming into contact with the inner peripheral surface of the insertion hole 950 and being damaged by the grommet 94.

  On the other hand, the clamp part 900 protrudes from the end part 910 of the protector 91. A through hole 901 is formed in the bracket 93. By fitting the clamp portion 900 into the through hole 901, the bracket 93 and the protector 91 are fastened. That is, the bracket 93 is prevented from being detached from the protector 91 by the folded portion 902 formed in the clamp portion 900.

JP 2004-135449 A

  However, the conventional fastening structure 90 between the protector 91 and the bracket 93 has a problem in that the length L in the protruding direction becomes longer because the clamp portion 900 protrudes from the end portion 910 of the protector 91. For this reason, it is necessary to provide a sufficient distance between the panel 95 and the end portion 910. Therefore, there is a problem that it is difficult to arrange the fastening structure 90 in a narrow place.

  For example, the protector 91, the bracket 93, and the grommet 94 may be covered with the heat insulator 96 in a state where the protector 91, the bracket 93, and the grommet 94 are attached to the panel 95. The heat insulator 96 protects the protector 91, the grommet 94, and the like from the heat of the engine or the like. In this case, it may be necessary to narrow the gap D between the panel 95 and the heat insulator 96 in relation to other components. In this case, there may be a case where a sufficient gap D sufficient to arrange the fastening structure 90 cannot be secured. Therefore, a fastening structure that can be thinned and can be arranged in a narrow gap has been desired.

The present invention has been made in view of such problems , and provides a fastening structure capable of thinning a protector and a bracket, and a fixing structure in which the protector and the bracket fastened by the fastening structure are fixed to a panel. It is something to try.

1st aspect of this invention is a fastening structure which fastens the protector which protects wiring, and the bracket which has a through-hole through which the said wiring extended from the edge part of this protector passes in the edge part of the said protector. ,
A plate-like piece projecting in a direction perpendicular to the axial direction of the through hole is formed on the outer edge of the bracket,
The protector is
A mounting table for mounting the plate-like piece portion;
A pair of holding claws that are provided in pairs on both sides of the mounting table and hold the plate-like piece portion mounted on the mounting table in the thickness direction;
A lid provided rotatably at the tip of the mounting table via a hinge part;
The lid portion has an open position where the plate-like piece portion can be placed on the mounting table, and a closed position that covers the plate-like piece portion placed on the placement table and fixes the plate-like piece portion to the placement table. And a notch for preventing interference with the holding claw at the closed position, and at the closed position, the engaged portion provided on the mounting table is In the fastening structure of the protector for wiring protection and the bracket, the engaging portion has an engaging portion to be engaged .
The second aspect of the present invention is a fixing structure in which the bracket and the protector fastened using the fastening structure are fixed to a panel, the panel having an inner diameter larger than the outer diameter of the wiring. The wiring is inserted through the insertion hole, and between the outer peripheral surface of the wiring and the inner peripheral surface of the insertion hole, the gap between them is closed and the peripheral portion of the insertion hole A grommet that seals the wire protection protector to the panel is provided, wherein the bracket presses the grommet toward the panel in a state of being fixed to the panel. It is in the structure (claim 4).

The function and effect of the present invention will be described. In the present invention, a plate-like piece portion is provided on the bracket, and a mounting table on which the plate-like piece portion is placed is provided on the protector. Moreover, the holding claw which hold | maintains a plate-shaped piece part in a plate | board thickness direction was formed in the mounting base. And after mounting the plate-shaped piece on the mounting table, the plate-shaped piece is sandwiched and fixed between the mounting table and the cover by rotating the cover to the closed position. Moreover, the cover part was provided with a notch for preventing interference with the holding claws.
If it does in this way, since it fixes by pinching a plate-shaped piece part with a cover part and a mounting base, it is not necessary to form the clamp part for fixation etc. on a mounting base, and can make a fastening structure thin. That is, since the lid portion can be formed thin, by adopting the above structure, the overall thickness of the fastening structure in the plate thickness direction of the plate-like piece portion in a state where the plate-like piece portion is fixed. The thickness can be reduced.
Moreover, since the said notch part was formed in the cover part in this invention, when a cover part is rotated to a closed position, a cover part and a holding claw do not overlap. Therefore, it is easy to make the fastening structure thinner.

  In the present invention, the plate-like piece portion is held on the mounting table using the holding claws, and is further fixed using the lid portion, so that the plate-like piece portion can be fixed twice and the fixing strength can be improved. it can.

As described above, according to the present invention, it is possible to provide a fastening structure capable of thinning the protector and the bracket, and a fixing structure in which the protector and the bracket fastened by the fastening structure are fixed to the panel .

The side view of the state which decomposed | disassembled the protector, the bracket, and the grommet in Example 1. FIG. It is a side view of the state which combined the protector, the bracket, and the grommet in Example 1, Comprising: B arrow line view of FIG. The perspective view of the mounting base which made the cover part into the open position in Example 1. FIG. It is a figure following FIG. 3, Comprising: The perspective view in the state which mounted the plate-shaped piece part on the mounting base. It is a figure following FIG. 4, Comprising: The perspective view in the state which fixed the plate-shaped piece part by making a cover part into a closed position. The A arrow line view of FIG. 2 which removed the panel. CC sectional drawing of FIG. The DD sectional drawing of FIG. 6 was described with the panel and the heat insulator. Sectional drawing which described the fastening structure of a protector and a bracket in a prior art example with wiring, a grommet, a panel, and a heat insulator.

A preferred embodiment of the present invention described above will be described.
In the present invention, the plate-like piece portion has a through-hole portion penetrating in the plate thickness direction, and the mounting table has a protrusion protruding from the placement surface of the plate-like piece portion, and the through-hole It is preferable that the plate-like piece portion of the mounting table can be aligned by engaging the portion with the protrusion.
If it does in this way, alignment of a plate-shaped piece part can be easily performed only by engaging the through-hole part of a plate-shaped piece part with the protrusion formed in the mounting surface. Therefore, workability when fastening the protector and the bracket can be improved.

In addition, the holding claw is described above from a first portion protruding in a normal direction of the mounting surface so as to face a side end surface of the plate-like piece portion from a side portion of the mounting table, and from a tip of the first portion. And a second portion protruding toward the inside of the mounting table, and is preferably configured to sandwich and hold the plate-like piece portion between the mounting table and the second portion. 3).
If it does in this way, since the plate-shaped piece part is clamped in the plate | board thickness direction between the mounting base and the said 2nd part, a plate-shaped piece part can be hold | maintained firmly. Thereby, it is possible to increase the fastening strength between the plate-like piece and the mounting table. Moreover, since the plate-shaped piece part is pinched | interposed into the width direction by a pair of 1st part, the position shift of the plate-shaped piece part to this width direction can also be controlled.

In the second aspect of the present invention, the panel includes an insertion hole having an inner diameter larger than the outer diameter of the wiring, and the wiring is inserted through the insertion hole. A grommet is disposed between the inner peripheral surface of the insertion hole and seals the periphery of the insertion hole, and the bracket holds the grommet in a state of being fixed to the panel. We are pressing toward the panel.
With such a structure, the fastening structure is located in the vicinity of the panel. In this case, by thinning the fastening structure, it becomes easy to prevent interference between the fastening structure and the panel. Therefore, the merit which employ | adopts the fastening structure of this invention is large.

The protector, bracket, and grommet attached to the panel are covered with a heat insulator, and the protector, bracket, and grommet are protected from the heat generated from other parts by the heat insulator. When the above-mentioned mounting table and the plate-like piece portion are located in the gap of the insulator, the application of the fastening structure of the present invention is very effective.
That is, when the heat insulator is arranged as described above, it may be necessary to narrow the gap between the panel and the heat insulator. Even when the gap is narrowed in this manner, the fastening structure according to the present invention can be thinned and can be arranged.

Example 1
A fastening structure according to an embodiment of the present invention will be described with reference to FIGS.
As shown in FIGS. 1 and 2, the fastening structure 1 of this example fastens the protector 2 and the bracket 3 at the end 20 of the protector 2. The protector 2 protects the wiring 10. The bracket 3 has a through hole 31, and the wiring 10 extending from the end 20 of the protector 2 passes through the through hole 31.
As shown in FIG. 6, the through hole 31 is substantially circular. A rubber grommet 6 is fitted in the through hole 31. The wiring 10 passes through the grommet 6.

As shown in FIG. 1, a plate-like piece portion 32 that protrudes in a direction orthogonal to the axial direction of the through hole 31 is formed on the outer edge portion of the bracket 3.
As shown in FIG. 4, the protector 2 includes a mounting table 4, a holding claw 42, and a lid 40. The plate-like piece 32 of the bracket 3 is placed on the mounting table 4. The holding claws 42 are provided in a pair on both sides of the mounting table 4 and hold the plate-like piece portions 32 mounted on the mounting table 4 in the thickness direction.

The lid 40 is rotatably provided at the tip of the mounting table 4 via a hinge 41. That is, the lid portion 40 covers the plate-like piece portion 32 placed on the placement table 4 and the open position (see FIGS. 3 and 4) where the plate-like piece portion 32 can be placed on the placement table 4. Is configured to be rotatable between a closed position (see FIG. 5) for fixing to the mounting table 4.
As shown in FIG. 5, the lid 40 has a notch 43 for preventing interference with the holding claw 42 in the closed position. The lid 40 has an engaging portion 44 that engages with an engaged portion 45 provided on the mounting table 4 in the closed position.
The details will be described below.

  As shown in FIG. 3, the mounting table 4 has a protrusion 46 that protrudes from the mounting surface 47 of the plate-like piece portion 32. Moreover, as shown in FIG. 4, the plate-shaped piece part 32 has the through-hole part 33 penetrated in the plate | board thickness direction. By engaging the through-hole portion 33 with the protrusion 46, the plate-like piece portion 32 in the mounting table 4 can be aligned.

  As shown in FIG. 7, the holding claw 42 includes a first portion 42 a protruding in the normal direction of the mounting surface 47 so as to face the side end surface 320 of the plate-like piece portion 32 from the side portion of the mounting table 4, and the first portion 42 a. It has the 2nd part 42b which protrudes toward the inner side of the mounting base 4 from the front-end | tip of the 1 part 42a. And the plate-shaped piece part 32 is pinched and hold | maintained between the mounting base 4 and the 2nd part 42b.

On the other hand, as shown in FIG. 3, the engaged portion 45 in this example is a pair of protrusions formed on both side surfaces of the mounting table 4. A side surface 450 of the engaged portion 45 is tapered.
A pair of locking claws 48 are formed on both sides of the lid 40. The engaging portion 44 described above is a hole formed through the locking claw 48.
When the lid 40 is closed, the tip of the locking claw 48 comes into contact with the side surface 450 of the engaged portion 45. Thereafter, the locking claw 48 moves over the engaged portion 45 while being elastically deformed, and sandwiches the mounting table 4 from both sides (see FIG. 5). Then, the engaged portion 45 engages with the engaging portion 44. Thereby, the lid part 40 is fixed to the mounting table 4.

  In addition, as shown in FIG. 5, the surface 400 of the lid 40 and the surface 420 of the holding claw 42 are substantially flush with the lid 40 rotated to the closed position.

  Further, in this example, the protector 2, the mounting table 4, the lid portion 40, and the hinge portion 41 are integrally formed of synthetic resin. The hinge part 41 is an integral hinge formed of a synthetic resin.

  On the other hand, as shown in FIG. 2, the panel 5 includes an insertion hole 50 having an inner diameter larger than the outer diameter of the wiring 10. The wiring 10 is inserted through the insertion hole 50. A grommet 6 is disposed between the outer peripheral surface of the wiring 10 and the inner peripheral surface of the insertion hole 50 and seals the peripheral portion of the insertion hole 50 while closing the gap therebetween. The bracket 3 presses the grommet 6 toward the panel 5 while being fixed to the panel 5.

  The bracket 3 and the protector 2 are provided with two bolt insertion holes 13 (see FIG. 6). As shown in FIG. 2, after fitting the grommet 6 into the insertion hole 50 of the panel 5, the bolt 11 is inserted into a bolt fastening hole (not shown) formed in the panel 5, and this bolt 11 is further inserted into the bolt insertion hole 13. Insert and screw the nut 12 together. Thereby, the bracket 3 and the protector 2 are fixed to the panel 5.

  Moreover, as shown in FIG. 8, in this example, two fastening structures for the protector 2 and the bracket 3 are provided. One is the above-described fastening structure 1 (first fastening structure), and the other is the second fastening structure 7 provided on the opposite side of the first fastening structure across the central axis of the through hole 31. The second fastening structure 7 has a structure described below. As shown in FIG. 8, the second plate-shaped piece 34 extends from the outer edge of the bracket 3 to the side opposite to the arrangement side of the panel 5. Further, the protector 2 is formed with an insertion hole 22 into which the second plate-like piece portion 34 is inserted. An engagement hole 35 is formed through the second plate-shaped piece 34. When the second plate-like piece portion 34 is inserted into the insertion hole 22, the engaging protrusion 21 formed inside the insertion hole 22 engages with the engagement hole 35. Thereby, the protector 2 and the bracket 3 are fastened.

Moreover, in this example, the wiring 10 is used for vehicles, such as an electric vehicle and a hybrid vehicle, and connects a battery and a motor (not shown). In this example, the protector 2, the bracket 3, and the grommet 6 attached to the panel 5 are covered with the heat insulator 14. The heat insulator 14 protects the protector 2 and the grommet 6 from the heat of the engine. In this example, as shown in FIG. 8, the gap d1 between the panel 5 and the heat insulator 14 in the vicinity of the fastening structure 1 is narrow.
On the other hand, the gap d2 between the panel 5 and the heat insulator 14 in the vicinity of the second fastening structure 7 is wide. In this example, the gap d2 is sufficiently wide and the second fastening structure 7 does not need to be thinned, so the above structure is employed. When the gap d2 is narrowed, the second fastening structure 7 may employ a configuration similar to that of the fastening structure 1 (first fastening structure).

The effect of this example will be described. In this example, as shown in FIG. 4, a plate-like piece portion 32 is provided on the bracket 3, and a mounting table 4 on which the plate-like piece portion 32 is placed is provided on the protector 2. Further, a holding claw 42 for holding the plate-like piece portion 32 in the plate thickness direction was formed on the mounting table 4. And after mounting the plate-shaped piece part 32 on the mounting base 4, as shown in FIG. 5, the plate-shaped piece part 32 with the mounting base 4 and the cover part 40 is rotated by rotating the cover part 40 to a closed position. It was comprised so that it might clamp and fix. Further, the lid portion 40 is provided with a notch portion 43 that prevents interference with the holding claw 42.
If it does in this way, since the plate-shaped piece part 32 is pinched | interposed and fixed by the cover part 40 and the mounting base 4, it is not necessary to form the clamp part for fixing etc. in the mounting base 4 (refer FIG. 9), fastening The structure 1 can be thinned. That is, since the lid portion 40 can be formed thin, by adopting the above structure, the fastening structure 1 in the plate thickness direction of the plate-like piece portion 32 in a state where the plate-like piece portion 32 is fixed is adopted. The overall thickness can be reduced.
In this example, since the notch 43 is formed in the lid 40, the lid 40 and the holding claw 42 do not overlap when the lid 40 is rotated to the closed position. Therefore, it is easy to make the fastening structure 1 thinner.

  In this example, since the plate-like piece portion 32 is held on the mounting table 4 using the holding claws 42 and is further fixed using the lid portion 40, the plate-like piece portion 32 can be fixed twice, and the fixing strength is increased. Can be improved.

Further, in this example, as shown in FIG. 4, the plate-like piece portion 32 has a through hole portion 33, and the mounting table 4 has a protrusion 46. And it is comprised so that the plate-shaped piece part 32 can be aligned by engaging the through-hole part 33 with the protrusion 46. FIG.
If it does in this way, alignment of the plate-shaped piece part 32 can be easily performed only by engaging the through-hole part 33 of the plate-shaped piece part 32 with the protrusion 46. Therefore, the workability at the time of fastening the protector 2 and the bracket 3 can be improved.

Moreover, as shown in FIG. 7, the holding claw 42 in this example has the 1st part 42a and the 2nd part 42b. And the plate-shaped piece part 32 is pinched and hold | maintained between the mounting base 4 and the 2nd part 42b.
If it does in this way, since the plate-shaped piece part 32 is clamped in the plate | board thickness direction between the mounting base 4 and the 2nd part 42b, the plate-shaped piece part 32 can be hold | maintained firmly. Thereby, the fastening strength between the plate-like piece portion 32 and the mounting table 4 can be increased. Further, since the plate-like piece portion 32 is sandwiched in the width direction by the pair of first portions 42a, the positional deviation of the plate-like piece portion 32 in the width direction can be restricted.

In addition, as shown in FIG. 2, the grommet 6 is fitted in the insertion hole 50 of the panel 5. The bracket 3 and the protector 2 are fixed to the panel 5. The bracket 3 presses the grommet 6 toward the panel 5 while being fixed to the panel 5.
With such a structure, the fastening structure 1 is positioned in the vicinity of the panel 5. In this case, by thinning the fastening structure 1, it becomes easy to prevent interference between the fastening structure 1 and the panel 5. Therefore, the merit which employ | adopts the fastening structure 1 of this example is large.

Further, in this example, as shown in FIG. 8, the protector 2, the bracket 3, and the grommet 6 attached to the panel 5 are covered with a heat insulator 14. The heat insulator 14 protects the protector 2, the bracket 3, and the grommet 6 from heat generated from the vehicle engine. And the mounting base 4 and the plate-shaped piece part 32 are arrange | positioned in the clearance gap d1 of the panel 5 and the heat insulator 14. FIG.
In this case, the effect of this example can be exhibited remarkably. That is, when the heat insulator 14 is disposed, it may be necessary to narrow the gap d1 between the panel 5 and the heat insulator 14. Even when the gap d1 becomes narrow in this way, the fastening structure 1 according to this example can be thinned and can be arranged.

Further, in this example, the protector 2, the mounting table 4, the lid portion 40, and the hinge portion 41 are integrally formed of synthetic resin. The hinge part 41 is an integral hinge formed of a synthetic resin.
If it does in this way, since protector 2, mounting base 4, lid part 40, and hinge part 41 can be integrated, the number of parts can be reduced.

  As described above, according to this example, it is possible to provide a fastening structure 1 that can be made thin and that fastens the protector 2 and the bracket 3.

DESCRIPTION OF SYMBOLS 1 Fastening structure 10 Wiring 2 Protector 3 Bracket 32 Plate-shaped piece part 4 Mounting stand 40 Lid part 41 Hinge part 42 Holding claw 43 Notch part 44 Engagement part 45 Engagement part 5 Panel 6 Grommet

Claims (4)

A fastening structure for fastening a protector for protecting the wiring and a bracket having a through-hole through which the wiring extends from the end of the protector at the end of the protector,
A plate-like piece projecting in a direction perpendicular to the axial direction of the through hole is formed on the outer edge of the bracket,
The protector is
A mounting table for mounting the plate-like piece portion;
A pair of holding claws that are provided in pairs on both sides of the mounting table and hold the plate-like piece portion mounted on the mounting table in the thickness direction;
A lid provided rotatably at the tip of the mounting table via a hinge part;
The lid portion has an open position where the plate-like piece portion can be placed on the mounting table, and a closed position that covers the plate-like piece portion placed on the placement table and fixes the plate-like piece portion to the placement table. And a notch for preventing interference with the holding claw at the closed position, and at the closed position, the engaged portion provided on the mounting table is A fastening structure of a protector for wiring protection and a bracket, characterized by having an engaging portion to be engaged . In Claim 2, The said plate-shaped piece part has a through-hole part penetrated in the plate | board thickness direction, This mounting base has a protrusion protruded from the mounting surface of the said plate-shaped piece part, The said penetration A fastening structure between a protector for wiring protection and a bracket, wherein the plate-like piece portion of the mounting table can be aligned by engaging a hole with the protrusion. 3. The holding portion according to claim 1, wherein the holding claw includes a first portion protruding in a normal direction of the mounting surface so as to face the side end surface of the plate-like piece portion from the side portion of the mounting table. A second portion projecting from the tip of one portion toward the inside of the mounting table, and configured to sandwich and hold the plate-like piece portion between the mounting table and the second portion. A fastening structure between a protector for wiring protection and a bracket, characterized in that A fixing structure in which the bracket and the protector, which are fastened using the fastening structure according to any one of claims 1 to 3 , are fixed to a panel , wherein the panel is formed from an outer diameter of the wiring. The insertion hole has a large inner diameter, and the wiring is inserted through the insertion hole. Between the outer peripheral surface of the wiring and the inner peripheral surface of the insertion hole, the insertion hole is closed. A panel for a protector for wiring protection, characterized in that a grommet for sealing the peripheral edge of the wiring protector is disposed, and the bracket presses the grommet toward the panel in a state of being fixed to the panel. Fixed structure to.

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