Grommet assembly and wiring harness

Abstract

Provided is a grommet assembly and wiring harness capable of suppressing deformation of a grommet and ensuring waterproofing. A grommet assembly (1) includes a grommet (2) installed in a through hole (11) formed in a panel (10), an internal member (3) supported by the grommet (2), and a protector (4) covering the grommet (2) and the internal member (3) and installed in the panel (10). The grommet (2) has a support portion (26) that supports the internal member (3). The support portion (26) has a first extension portion (26b) extending from the outer side to the inner side in the radial direction and sandwiched between the internal member (3) and the protector (4), and a second extension portion (26c) bent from the first extension portion (26b) and extending in the axial direction and sandwiched between the internal member (3) and the protector (4).

Description

Technical Field

[0001] This invention relates to cable loop assemblies and wire harnesses. Background Technology

[0002] Conventionally, as a grommet assembly and a wire harness, for example, a structure is known where a grommet is positioned in a through hole through which the wire harness is inserted, as described in Patent Document 1. This grommet assembly and wire harness are mounted relative to a panel mounting bracket, which supports the grommet.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2010-74671 Summary of the Invention

[0006] The technical problem that the invention aims to solve

[0007] However, as part of the cable grommets and wiring harness, it is considered to mount the internal components onto the cable grommets, using a protector to press the cable grommets and internal components towards the panel side. However, there are concerns about reduced waterproofing of the cable grommets. For example, it is envisioned that when the wiring material of the wiring harness is pulled forcefully, the cable grommets deform, the ends of the cable grommets curl up, and the waterproofing of the cable grommets is reduced.

[0008] Therefore, the object of the present invention is to provide a cable ring assembly and a wire harness that can suppress the deformation of the cable ring and ensure waterproof function.

[0009] Technical means for solving problems

[0010] That is, the cable ring assembly of the present invention comprises: a cable ring through which wiring material is inserted and is installed in a through hole formed in a vehicle panel; an internal component disposed on the opposite side of the vehicle panel relative to the cable ring and supported by the cable ring; and a protector through which wiring material is inserted and which covers the cable ring and the internal component and is installed in the vehicle panel. The cable ring has a support portion that covers and supports the outer edge of the internal component. The support portion has: a first extension that extends radially outward and inward and is sandwiched between the internal component and the protector; and a second extension that bends from the first extension and extends axially and is sandwiched between the internal component and the protector.

[0011] Invention Effects

[0012] The cable ring assembly and wire harness according to the present invention can suppress the deformation of the cable ring and ensure waterproof function. Attached Figure Description

[0013] Figure 1This is an exploded perspective view of the cable ring assembly involved in the implementation method.

[0014] Figure 2 yes Figure 1 A cross-sectional view of the cable loop assembly and wire harness in II-II.

[0015] Figure 3 yes Figure 1 Enlarged cross-sectional view of the cable ring assembly in II-II.

[0016] Figure 4 It is a three-dimensional view of the cable rings and internal components in the cable ring assembly.

[0017] Figure 5 This is an illustration of the waterproof function of the cable ring.

[0018] Symbol Explanation

[0019] 1. Cable ring assembly

[0020] 2. Gripping ring

[0021] 3. Internal components

[0022] 4 Protectors

[0023] 10 Panels (Vehicle Panels)

[0024] 11 Through Holes

[0025] 26 Support section

[0026] 26b First Extension

[0027] 26c Second Extension

[0028] 31 Main Body

[0029] 32 Flange portion

[0030] 33. Locking part

[0031] W wiring materials

[0032] WH wiring harness Detailed Implementation

[0033] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be emphasized that the present invention is not limited to these embodiments. Furthermore, the constituent elements in the following embodiments include constituent elements that can be easily substituted by those skilled in the art or substantially the same constituent elements.

[0034] [Implementation Method]

[0035] Figure 1 This is an exploded perspective view of the cable ring assembly involved in the embodiment. Figure 2 It is a vertical cross-sectional view of the cable ring assembly and the wire harness. Figure 3 This is an enlarged cross-sectional view of the cable ring. Figure 4 It is a 3D view of the grommets and their internal components. Figure 5 This is an illustration of the waterproof function of the cable ring.

[0036] like Figure 1 , 2 As shown, the cable loop assembly 1 is an assembly for mounting the cable loop 2 to the panel 10, and includes the cable loop 2, internal components 3, and a protector 4. The wiring harness WH is configured to include the cable loop assembly 1 and wiring material W. For example, the wiring harness WH is constructed by assembling the cable loop assembly 1 to the wiring material W that is routed to the vehicle. Here, the wiring harness WH, for example, bundles multiple wiring materials W together as a collection component, and provides electrical connection between devices mounted in the vehicle. Alternatively, the wiring harness WH may also be configured to include other components such as corrugated tubing and resin tape. The wiring material W is conductive and connects devices mounted in the vehicle for power supply and signal communication. The wiring material W is, for example, composed of a metal rod, wires, or a wire harness. The metal rod is formed by covering the outside of a conductive rod-shaped component with an insulating coating. The wires are formed by covering the outside of a conductor portion (core wire) composed of multiple conductive metal wires with an insulating coating. The wire harness is formed by bundling these wires together.

[0037] Panel 10 is a vehicle panel, such as a floor panel installed on the floor of the vehicle body. Panel 10 is the mounting object for the mounting ring 2 and is composed of a plate-shaped member arranged in a horizontal direction. Figure 1 For ease of explanation, a portion of panel 10 is shown in a circle. The overall shape of panel 10 is, for example, a shape corresponding to the structure of a vehicle.

[0038] A through hole 11 is formed in the panel 10. The through hole 11 is a hole for inserting the wiring harness WH, and it penetrates the back of the panel 10, connecting the outer side of the panel 10 to the inner side of the vehicle. Figure 1 In the middle, the lower side of panel 10 is the outer side of the vehicle, and the upper side is the inner side of the vehicle. In this... Figure 1 The diagram shows a case where the through-hole 11 has a circular opening, but there are also cases where the through-hole 11 has an opening other than a circle. A bolt 12 is provided on the lower surface of the panel 10. The bolt 12 protrudes downward from the lower surface of the panel 10, and for example, two bolts are provided at positions separated by the through-hole 11. The bolt 12 functions as a fastening component for mounting the protector 4 to the panel 10.

[0039] The cable ring 2 is a component installed in the through hole 11 to allow the wiring material W to pass through, thereby covering and protecting the wiring material W. The cable ring 2 is made of, for example, an elastic body capable of elastic deformation, such as rubber or elastic resin. The cable ring 2 fills the gap between the wiring material W and the inner edge of the through hole 11 to protect the wiring material W, thus providing waterproofing for both the interior and exterior of the vehicle. Additionally, the cable ring 2 can also function as a component for dustproofing and sound insulation of the vehicle.

[0040] The cable loop 2 has a main body 21, an insertion part 22, and a cylindrical part 23. The main body 21 is located on the outer side of the panel 10 and is formed to be larger than the through hole 11, for example, in a circular plate shape. The insertion part 22 is inserted into the through hole 11 and is formed to be able to be inserted into the through hole 11, for example, in a cylindrical or cylindrical shape. The cylindrical part 23 is used to insert and cover the wiring material W, and protrudes from the main body 21 or the insertion part 22 along the through direction of the through hole 11. Figure 1 The diagram shows a case where one cylindrical section 23 is formed. However, the cylindrical section 23 can also be formed in more than two sections depending on the number of wires W inserted.

[0041] The cable loop 2 has a lip 24, a hollow portion 25, and a support portion 26. The lip 24 is the part that abuts against the panel 10 and protrudes from the main body 21 toward the panel 10. The lip 24 is formed, for example, as a protrusion that connects to the through-hole 22 in a manner that covers the area around the through-hole 22. By pressing the lip 24 against the panel 10, the cable loop 2 seals the inside and outside of the through-hole 11, thereby achieving the waterproof function of the cable loop 2. In other words, if the lip 24 cannot be properly pressed due to deformation of the cable loop 2, the waterproof function of the cable loop 2 is reduced.

[0042] like Figure 3 As shown, the hollow portion 25 is a hollow space within the grommets 2, located in the area on the side of the inner component 3 relative to the lip 24. That is, the hollow portion 25 is formed on the opposite side of the panel 10 relative to the lip 24, making it easier for the lip 24, which is pressed against the panel 10, to flex. For example, the hollow portion 25 is formed as a groove that radially recesses the outer periphery of the main body 21 and extends circumferentially. When the grommets 2 are mounted on the panel 10, the lip 24 is pressed against the panel 10, but by forming the hollow portion 25, the lip 24 can flex and move towards the hollow portion 25 before deforming in a flattened manner. Furthermore, in the grommets assembly 1 and the wire harness WH of this embodiment, there are also cases where the hollow portion 25 is omitted.

[0043] The support portion 26, which supports the internal component 3, is formed on the side of the main body portion 21 opposite to the internal component 3. That is, the support portion 26 is formed on the side opposite to the panel 10 relative to the main body portion 21. The support portion 26 engages with the internal component 3, thereby enabling the cable loop 2 and the internal component 3 to be assembled. For example, the support portion 26 supports the internal component 3 by covering it with the outer edge of the flange portion 32, thus integrating the cable loop 2 and the internal component 3. Details regarding the flange portion 32 will be explained later.

[0044] Specifically, the support portion 26 is configured to have an outer cylindrical portion 26a, a first extension portion 26b, and a second extension portion 26c. The outer cylindrical portion 26a is cylindrical and covers the outer peripheral portion of the flange portion 32. The first extension portion 26b is formed to connect with the outer cylindrical portion 26a, extends radially from the outer side to the inner side, and covers the lower surface of the flange portion 32. The lower surface of the flange portion 32 is the side of the flange portion 32 opposite to the panel 10. That is, the first extension portion 26b is formed along the side of the flange portion 32 opposite to the panel 10. The second extension portion 26c is formed to connect with the first extension portion 26b, bends from the first extension portion 26b, and extends axially.

[0045] The first extension 26b and the second extension 26c are disposed between the inner component 3 and the protector 4. Specifically, the first extension 26b is disposed between the flange portion 32 of the inner component 3 and the first parallel surface 41c of the protector 4. The second extension 26c is disposed between the main body portion 31 of the inner component 3 and the second inner peripheral surface 41d of the protector 4. Details regarding the first parallel surface 41c and the second inner peripheral surface 41d will be explained later. In this way, the first extension 26b and the second extension 26c are disposed between the inner component 3 and the protector 4 in a bent state, thereby creating a structure in which the first extension 26b and the second extension 26c are not easily dislodged from between the inner component 3 and the protector 4.

[0046] exist Figure 1 In this design, the internal component 3 is a component installed on the cable ring 2. This internal component 3 is made of, for example, resin, and has a higher rigidity than the cable ring 2. The internal component 3 is configured to abut against the side of the cable ring 2 opposite to the panel 10. Therefore, when the protector 4 is installed on the panel 10, the internal component 3 can withstand the pressing pressure from the protector 4 and transmit it to the cable ring 2. It should be noted that only a portion of the internal component 3 needs to be configured to abut against the side of the cable ring 2 opposite to the panel 10; other portions may not be configured on the side of the cable ring 2 opposite to the panel 10.

[0047] The internal component 3 has a main body 31, a flange 32, and a locking portion 33. The main body 31 is cylindrical and is arranged such that its axial direction is the through-hole 11. The axial direction is the direction of the central axis of the main body 31, which is the Z direction shown in the figure. Wiring material W can be inserted through the inside of the main body 31. The flange 32 extends radially outward from the main body 31 and is formed parallel to the panel 10. The radial direction is the radial direction of the main body 31 and is orthogonal to the axial direction. For example, as... Figure 3 As shown, the flange 32 extends radially outward from the panel 10 side of the main body 31 to the lip 24 of the grommets 2. Therefore, when the protector 4 is installed on the panel 10, the flange 32 of the highly rigid internal component 3 can be used to press the lip 24, and the grommets 2 can be reliably pressed against the panel 10.

[0048] In addition, Figure 1 In this configuration, the main body 31 and the flange 32 are arranged in a ring shape, but for example, it could also be a structure composed of two semi-ring-shaped components. In this case, the main body 31 and the flange 32 can be divided or opened / closed into two semi-ring-shaped components. That is, after inserting the wiring material W with the two semi-ring-shaped components divided or opened, the main body 31 and the flange 32 are combined into a ring shape, thereby facilitating the insertion of the wiring material W.

[0049] like Figure 4 As shown, the locking portion 33 is provided on the outer periphery of the main body 31 and is used to lock the protector 4. For example, multiple locking portions 33 are provided. Figure 4 Three locking portions 33 are provided at intervals along the circumference of the inner component 3. Alternatively, two or more locking portions 33 may be provided. Each locking portion 33 has an arm 33a and a locking claw 33b. The arm 33a protrudes radially outward from the outer periphery of the main body 31. The locking claw 33b is formed to extend axially from the end of the arm 33a. That is, the locking claw 33b bends from the arm 33a and extends axially toward the protector 4, enabling it to lock onto the protector 4. A hook portion protruding radially is formed at the end of the locking claw 33b. Furthermore, in the grommets 1 and the wire harness WH of this embodiment, components other than the locking portions 33 may be used to lock the inner component 3 to the protector 4.

[0050] The locking portion 33 of the internal component 3 is disposed adjacent to the first extension 26b and the second extension 26c. That is, the first extension 26b and the second extension 26c are disposed adjacent to the circumferential end faces of the locking portion 33, restricting the relative rotational movement of the grommets 2 and the internal component 3. Specifically, recesses 27 are formed in the first extension 26b and the second extension 26c, and the locking portion 33 is inserted into these recesses 27. The recesses 27 are formed such that they are recessed radially outward in the first extension 26b and the second extension 26c, and the locking portion 33 can be inserted into them. The recesses 27 are provided circumferentially according to the formation position and number of locking portions 33. That is, the locking portion 33 and the recesses 27 are configured such that when the internal component 3 is mounted on the grommets 2, the locking portion 33 is inserted into the recesses 27.

[0051] like Figure 1 , Figure 2 As shown, the protector 4 is a component that protects the cable ring 2, the internal component 3, and the wiring material W, and restricts the wiring path of the wiring material W. The protector 4 houses the cable ring 2, the internal component 3, and the wiring material W, and is mounted on the panel 10 in such a way that it clamps the cable ring 2 and the internal component 3 between itself and the panel 10.

[0052] The protector 4 includes a base component that covers the cable loop 2, the internal component 3, and the wiring material W. The base component has a first base portion 41 and a second base portion 42. The first base portion 41 is positioned at the location where the through hole 11 is formed and is the portion that covers and protects the cable loop 2 and the internal component 3. The first base portion 41 is formed as a cylinder with its end face open on the panel 10 side. When the protector 4 is mounted on the panel 10, the first base portion 41 covers and protects the cable loop 2 and the internal component 3.

[0053] The second base portion 42 is formed to connect with the first base portion 41, and is provided such that it protrudes radially from the side of the first base portion 41. A wiring material W extending from the first base portion 41 is inserted into the interior of the second base portion 42. That is, the wiring material W is inserted into the first base portion 41 in a radially bent manner, extends from the first base portion 41, and is inserted into the second base portion 42. When the protector 4 is mounted on the panel 10, the second base portion 42 protects the wiring material W inserted inside. Furthermore, Figure 1 The image shows the state in which the cover 42a, which covers the side portion of the first base portion 41 and the panel 10 side of the second base portion 42, has been removed from the protector 4.

[0054] exist Figure 2 , 3In this design, the internal space 41a of the first base portion 41 is, for example, cylindrical, forming a stepped space whose inner diameter narrows as it moves away from the panel 10. Specifically, the internal space 41a is defined by a first inner peripheral surface 41b, a first parallel surface 41c, a second inner peripheral surface 41d, a second parallel surface 41e, a third inner peripheral surface 41f, and a bottom surface 41g. In other words, within the internal space 41a, the inner peripheral surfaces are formed from the panel 10 side in the order of the first inner peripheral surface 41b, the second inner peripheral surface 41d, and the third inner peripheral surface 41f. The inner diameter of the second inner peripheral surface 41d is smaller than that of the first inner peripheral surface 41b, and the inner diameter of the third inner peripheral surface 41f is smaller than that of the second inner peripheral surface 41d. Furthermore, a first parallel surface 41c, which is parallel to the panel 10, is formed between the first inner peripheral surface 41b and the second inner peripheral surface 41d, and a second parallel surface 41e, which is parallel to the panel 10, is formed between the second inner peripheral surface 41d and the third inner peripheral surface 41f. As a result, the interior space 41a has a shape with two steps.

[0055] Within the internal space 41a, a cable loop 2 and a flange portion 32 of the internal component 3 are disposed on the inner side of the first inner peripheral surface 41b. The support portion 26 of the cable loop 2, which covers the flange portion 32, abuts against the first parallel surface 41c. The main body portion 31 of the internal component 3 abuts against the second parallel surface 41e. Thus, when the protector 4 is installed on the panel 10, the cable loop 2 can be pressed against the panel 10 via the internal component 3.

[0056] exist Figure 1 In the protector 4, a through hole 43 for inserting the bolt 12 is provided. The through hole 43 is an axially oriented hole, for example, formed in a protrusion 44 that projects radially from the outer periphery of the first base portion 41. The through hole 43 and the protrusion 44 are formed according to the installation position of the bolt 12. Figure 1 In the middle, two through holes 43 and protrusions 44 are formed relative to the two bolts 12.

[0057] Next, the cable loop assembly and the assembly method of the wire harness involved in this embodiment will be described.

[0058] First, such as Figure 1As shown, wiring material W is inserted into the loop 2. For example, the loop 2, which is an elastic body, is enlarged to insert wiring material W. Furthermore, internal component 3 is assembled to wiring material W. For example, the main body 31 and flange 32 of internal component 3 are in a split or open state, and wiring material W is disposed inside internal component 3. Furthermore, by assembling or closing the main body 31 and flange 32 to form a ring, internal component 3 is assembled to wiring material W. Moreover, wiring material W is inserted into protector 4. For example, the cover 42a of protector 4 is opened, and wiring material W is inserted into the interior of the first base portion 41 and the second base portion 42 of protector 4. Then, cover 42a is closed, and protector 4 is assembled to wiring material W.

[0059] After that, as Figure 3 , 4 As shown, the cable ring 2 and the inner component 3 are installed. Specifically, the flange portion 32 of the inner component 3 is covered by the support portion 26 of the cable ring 2, and the cable ring 2 is installed on the inner component 3. At this time, the inner component 3 and the cable ring 2 are engaged by inserting the locking portion 33 of the inner component 3 into the recess 27 of the cable ring 2. The support portion 26 covers the flange portion 32 from the side to the lower surface, thus reliably supporting the flange portion 32. Furthermore, by inserting the locking portion 33 into the recess 27, relative rotational movement between the cable ring 2 and the inner component 3 is suppressed.

[0060] Next, the grommets 2 and internal components 3 are installed onto the protector 4. (As follows) Figure 2 As shown, the grommets 2 and the internal component 3 are housed within the internal space 41a of the first base portion 41. At this time, the grommets 2 and the internal component 3 are housed within the internal space 41a by inserting the locking claws 33b of the internal component 3 into the hole 45 of the protector 4. Furthermore, by locking the internal component 3 against the retaining portion of the protector 4 with the locking claws 33b, the grommets 2, the internal component 3, and the protector 4 become a single unit.

[0061] Then, install the protector 4 onto the panel 10. For example... Figure 2 As shown, the first base portion 41 of the protector 4 is aligned with the through hole 11, and the lip 24 of the grommets 2 abuts against the panel 10. Furthermore, as... Figure 1 As shown, by inserting the bolt 12 through the through hole 43 of the protector 4, the protector 4 is positioned correctly relative to the panel 10. Furthermore, since the cable ring 2 and the internal component 3 are positioned correctly relative to the protector 4, their positions relative to the panel 10 are also correct. Therefore, without using a metal plate, the cable ring 2 is properly positioned and installed relative to the through hole 11.

[0062] Then, a nut (not shown) is screwed into bolt 12 for tightening. Thus, the protector 4 is brought close to and secured to panel 10. At this time, as... Figure 3 As shown, the protector 4 presses the loop 2 via the internal component 3, and the lip 24 of the loop 2 presses against the panel 10. Therefore, for example, compared to the case where part of the internal component 3 is an elastomer and is formed as part of the loop 2, excessive deformation of the loop 2 can be suppressed, and the waterproof function of the loop 2 can be properly performed. That is, if part of the internal component 3 is made of a component with the same rigidity as the loop 2, the protector 4 presses the entire loop 2. In this case, stress is applied to the entire loop 2, and unwanted deformation occurs in the parts other than the lip 24. Therefore, the loop 2 may not be able to perform the desired waterproof function. In contrast, the loop 2 of this embodiment can suppress such adverse conditions and perform an appropriate waterproof function.

[0063] Furthermore, after the protector 4 is installed on the panel 10, the installation of the cable ring 2, the internal component 3, and the wire harness WH is also completed, allowing the wiring material W to be inserted and placed in the through hole 11 of the panel 10.

[0064] Next, the waterproof function of the cable ring assembly and wire harness involved in this embodiment will be explained.

[0065] like Figure 2 As shown, the cable ring 2 is installed in the through hole 11, and the lip 24 of the cable ring 2 is pressed against the panel 10. Thus, the inner and outer sides of the panel 10 are sealed by the cable ring 2, preventing water from seeping into the inner side of the vehicle from the outer side through the through hole 11.

[0066] Here, as Figure 5 As shown, there are situations where the wiring material W is pulled. For example, when installing the wire harness WH, the wiring material W is sometimes pulled to the side. At this time, the tube 23 is also pulled along with the wiring material W, and the pulling force T applied to the tube 23 is transmitted to the support 26 through the main body 21 and the insertion part 22.

[0067] Here, as Figure 3As shown, the support portion 26 has a first extension 26b and a second extension 26c, which are clamped between the inner component 3 and the protector 4. Specifically, the first extension 26b is clamped between the flange portion 32 and the first parallel surface 41c, and the second extension 26c is clamped between the outer peripheral surface of the main body portion 31 and the second inner peripheral surface 41d. Moreover, the first extension 26b and the second extension 26c are clamped between the inner component 3 and the protector 4 in a bent state. Therefore, even if a pulling force T is applied to the support portion 26, the first extension 26b and the second extension 26c are not easily pulled out from between the inner component 3 and the protector 4. Therefore, the cable loop assembly 1 and the wire harness WH can prevent the support portion 26 located at the end of the cable loop 2 from curling up and can prevent the lip 24 from moving away from the panel 10. Thus, the desired waterproof function of the cable loop 2 can be ensured.

[0068] Furthermore, the support portion 26 supports the internal component 3 by covering the outer edge of the flange portion 32, and forms a first extension portion 26b along the side opposite to the panel 10, bypassing the outer edge of the flange portion 32. Therefore, the grommet assembly 1 and the wiring harness WH are designed to prevent the first extension portion 26b from being pulled out from the panel 10 side. Thus, even if the wiring material W is pulled, the grommet assembly 1 and the wiring harness WH can prevent the ends of the grommets 2 from curling up, providing a high level of waterproofing.

[0069] Furthermore, the internal component 3 is configured to abut against the side of the grommets 2 opposite to the panel 10, and the protective member 4 is mounted on the panel 10 in such a way that it clamps the grommets 2 and the internal component 3 between itself and the panel 10. Therefore, when the protective member 4 is mounted on the panel 10, the grommets assembly 1 and the wiring harness WH can securely clamp the first extension 26b between the protective member 4 and the internal component 3. Thus, the grommets assembly 1 and the wiring harness WH can be configured such that the first extension 26b is not easily pulled out between the protective member 4 and the internal component 3, reliably ensuring the waterproof function of the grommets 2.

[0070] As explained above, according to the grommet assembly 1 and the wire harness WH of this embodiment, the support portion 26 of the grommet 2 has: a first extension portion 26b, which extends radially from the outer side to the inner side and is sandwiched between the inner component 3 and the protector 4; and a second extension portion 26c, which bends from the first extension portion 26b and connects to it, extends axially, and is sandwiched between the inner component 3 and the protector 4. That is, the first extension portion 26b and the second extension portion 26c of the support portion 26 are sandwiched between the inner component 3 and the protector 4 in a bent state. Therefore, even when a tensile force T is applied to the grommet 2, such as when the wiring material W is pulled, the first extension portion 26b and the second extension portion 26c can be prevented from coming loose from between the inner component 3 and the protector 4. Therefore, in the grommet assembly 1 and the wire harness WH, the end of the grommet 2 is not easily rolled up, and the desired waterproof function of the grommet 2 can be ensured.

[0071] Furthermore, according to the grommet assembly 1 and the wire harness WH of this embodiment, the support portion 26 covers the outer edge of the flange portion 32 to support the internal component 3, and a first extension portion 26b is formed along the side opposite to the panel 10, bypassing the outer edge of the flange portion 32. Therefore, the grommet assembly 1 and the wire harness WH have a structure in which the first extension portion 26b is difficult to pull out from the panel 10 side. Therefore, in the grommet assembly 1 and the wire harness WH, the end of the grommet 2 is less likely to curl up, ensuring the desired waterproof function of the grommet 2.

[0072] Furthermore, according to the cable loop assembly 1 and the wire harness WH of this embodiment, the first extension 26b and the second extension 26c are arranged adjacent to the circumferential end faces of the locking portion 33. Therefore, the cable loop assembly 1 and the wire harness WH can restrict the relative rotational movement of the cable loop 2 and the internal component 3 by means of the support portion 26 and the locking portion 33.

[0073] The above embodiments of the present invention have been illustrated, but these embodiments are merely examples and are not intended to limit the scope of the invention. The above embodiments can be implemented in many other ways, and various omissions, substitutions, combinations, and modifications can be made without departing from the spirit of the invention. Furthermore, the specifications (structure, type, orientation, shape, size, length, width, thickness, height, quantity, configuration, position, material, etc.) of various structures and shapes can be appropriately modified for implementation.

[0074] For example, in the above embodiment, the case where the cable ring assembly 1 and the wiring harness WH are installed on the panel 10, which is the floor of the vehicle, has been described, but it can also be applied to the case where the panel is installed on a vehicle panel other than the floor panel or other panels.

Claims

1. A cable ring assembly, characterized in that, have: A cable loop for inserting wiring material and is installed into a through hole formed in a vehicle panel; An internal component, which is disposed on the opposite side of the vehicle panel relative to the cable ring and is supported by the cable ring; as well as A protector, through which the wiring material is inserted, covers the cable loop and the internal components, and is mounted on the vehicle panel. The cable loop has a support portion that supports the internal components. The support portion has: a first extension that extends radially from the outer side to the inner side and is sandwiched between the inner component and the protector; and a second extension that bends from the first extension and extends axially and is sandwiched between the inner component and the protector.

2. The cable ring assembly according to claim 1, characterized in that, The internal component has a flange that extends radially outward from the cylindrical main body. The support portion covers the outer edge of the flange portion to support the internal component. The first extension is formed along the side of the flange that is opposite to the vehicle panel.

3. The cable ring assembly according to claim 1 or 2, characterized in that, The internal component has a locking portion that protrudes radially outward from the main body and locks the protector in place. The first extension and the second extension are disposed adjacent to the end face of the locking portion to restrict the relative rotational movement of the grommets and the internal components.

4. A wire harness, characterized in that, have: Wiring material, said wiring material being conductive; and A cable loop assembly disposed on the wiring material. The cable ring assembly comprises: A cable loop for inserting wiring material and is installed into a through hole formed in a vehicle panel; An internal component, which is disposed on the opposite side of the vehicle panel relative to the cable ring and is supported by the cable ring; as well as A protector, through which the wiring material is inserted, covers the cable loop and the internal components, and is mounted on the vehicle panel. The cable loop has a support portion that supports the internal components. The support portion has: a first extension that extends radially from the outer side to the inner side and is sandwiched between the inner component and the protector; and a second extension that bends from the first extension and extends axially and is sandwiched between the inner component and the protector.

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