Grommet and wiring member with the same

Abstract

To provide a grommet and a wiring member with the same that are easy to keep in an engagement state and that can easily maintain a water-stopping state.SOLUTION: A tubular grommet 10 has a through-hole 11a through which a wiring member 2 penetrates. The grommet 10 includes a tubular portion 11 in which the through-hole 11a is formed, an engagement portion 20, and a mating engagement portion 30 capable of engaging with the engagement portion 20. The tubular portion 11 includes at least one pair of a first divided end 12 and a second divided end 13 along a penetration direction A of the wiring member 2. The engagement portion 20 is formed along the first divided end 12. The mating engagement portion 30 is formed along the second divided end 13. By the engagement portion 20 and the mating engagement portion 30 engaging with each other continuously along the penetration direction A, the first divided end 12 and the second divided end 13 are kept in a water-stopping state continuously along the penetration direction A.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present disclosure relates to a grommet and a wiring member with a grommet. [Background technology]

[0002] A vehicle such as an automobile may be provided with a body panel that separates an engine room from a passenger compartment. A through hole is formed in the body panel to allow a wire harness to pass through. A grommet may be provided that is attached to the wire harness and attached to the through hole. One such grommet is described in Patent Document 1. The grommet described in Patent Document 1 is composed of two divided bodies that are divided in two along the direction in which the wire harness passes through. The two divided bodies are connected with the wire harness sandwiched between them. The two divided bodies are provided with a locking means for connecting them to each other. The locking means is composed of a locking claw that protrudes from a divided end of one of the divided bodies, and a locking frame that protrudes from a divided end of the other divided body to engage and lock the locking claw. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2000-40433 A Summary of the Invention [Problem to be solved by the invention]

[0004] It is desirable to make it easier to maintain the engaged state at the split ends of the grommet and therefore easier to keep the waterproof state.

[0005] Therefore, an object of the present disclosure is to make it easier to maintain an engaged state at the split ends of a grommet and to make it easier to maintain a waterproof state. [Means for solving the problem]

[0006] The grommet of the present disclosure is a tubular grommet having a through hole through which a wiring member passes, and comprises a tubular portion in which the through hole is formed, an engagement portion, and a mating engagement portion engageable with the engagement portion, the tubular portion includes at least one pair of a first divided end and a second divided end along the penetration direction of the wiring member, the engagement portion being formed along the first divided end and the mating engagement portion being formed along the second divided end, and the engagement portion and the mating engagement portion continuously engage with each other along the penetration direction, such that the first divided end and the second divided end are continuously maintained in a waterproof state along the penetration direction.

[0007] Moreover, a grommet-equipped wiring member of the present disclosure includes the above-mentioned grommet and a wiring member that passes through the through hole of the grommet. Effect of the Invention

[0008] According to the present disclosure, it is possible to provide a grommet and a wiring member with a grommet that are easily maintained in an engaged state and in a waterproof state. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a front view showing a grommet together with a wiring member and a vehicle body panel. [Diagram 2] FIG. 2 is a perspective view showing a grommet. [Diagram 3] FIG. 3 is a side view showing the engaging portion and the mating engaging portion together with the slider. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] [Description of the embodiments of the present disclosure] First, the embodiments of the present disclosure will be listed and described.

[0011] The grommet of the present disclosure is as follows.

[0012] (1) A tubular grommet having a through hole through which a wiring member passes, comprising: a tubular portion in which the through hole is formed, an engagement portion, and a mating engagement portion engageable with the engagement portion, wherein the tubular portion includes at least one pair of a first divided end and a second divided end along the penetration direction of the wiring member, the engagement portion being formed along the first divided end, and the mating engagement portion being formed along the second divided end, and the engagement portion and the mating engagement portion being continuously engaged with each other along the penetration direction, thereby maintaining the first divided end and the second divided end in a continuously waterproof state along the penetration direction.

[0013] According to this grommet, the engaging portion and the mating engaging portion are continuously engaged with each other, so that the stress burden can be distributed over the entire area of ​​the engagement. For example, when a force is applied to release the engagement, the force burden is distributed over the entire area to which the force is applied, compared to a configuration in which only a portion of the grommet is engaged. Therefore, the engagement state of the engaging portions is easily maintained. In addition, because the continuous engagement state is maintained, the watertight state is easily maintained over the entire penetration direction.

[0014] (2) The grommet of (1) may further include a deformable flexible portion extending along the first divided end or the second divided end between the first divided end and the engaging portion and between the second divided end and the mating engaging portion. According to this grommet, the flexible portion extending along the first divided end or the second divided end is deformable. Therefore, even if there are irregularities in the penetration direction at the first divided end or the second divided end of the grommet, the irregularities are absorbed by the shape deformation of the flexible portion between the first divided end and the engaging portion or between the second divided end and the mating engaging portion. This makes it easy to continuously engage the engaging portion and the mating engaging portion even if the engaging portion and the mating engaging portion are formed in a straight line.

[0015] (3) The grommet of (1) or (2) may further include a slider that moves along the engaging portion and the mating engaging portion and engages or disengages the engaging portion and the mating engaging portion depending on the direction of movement of the slider. With this grommet, the engaging portion and the mating engaging portion can be easily engaged with each other by sliding the slider.

[0016] (4) In the grommet of (3), at least one end of the engaging portion and the mating engaging portion may include a stopper that engages with the slider to prevent the slider from coming off. According to this grommet, since the stopper engages the slider, loss of the slider is prevented even if the engagement between the engaging portion and the mating engaging portion is released.

[0017] (5) In the grommet of (3), the slider may be detachable from the ends of the engagement portion and the mating engagement portion. With this grommet, the slider can be removed from the ends of the engagement portion and the mating engagement portion. By making the slider absent in the fully engaged state, the slider does not get in the way when the grommet is attached to the vehicle body.

[0018] (6) In the grommet according to any one of (1) to (5), one of the engaging portion and the mating engaging portion may have an engaging groove extending along the penetration direction and narrowing at an outlet, and the other of the engaging portion and the mating engaging portion may have an engaging ridge portion extending along the penetration direction and formed with a tip wider than a base end, and the engaging ridge portion may pass through the outlet of the engaging groove and continuously engage with the engaging groove. With this grommet, the engaging ridge portion engages with the engaging groove, thereby maintaining the engagement without using a filler or a water-stopping material.

[0019] (7) The grommet according to any one of (1) to (6) may include a plurality of pairs of the engaging portion and the mating engaging portion, and the plurality of pairs of the engaging portion and the mating engaging portion may be positioned in parallel at different distances from the tubular portion. Since the grommet includes a plurality of parallel pairs of the engaging portion and the mating engaging portion, the grommet has improved waterproofing and soundproofing properties.

[0020] (8) The grommet according to any one of (1) to (7), wherein the grommet includes only one pair of the first divided end and the second divided end. Since the grommet includes only one pair of the first divided end and the second divided end, the grommet has higher waterproofing and soundproofing properties than a grommet including two or more pairs.

[0021] Further, the grommet-equipped wiring member of the present disclosure is as follows.

[0022] (9) A wiring member with a grommet, comprising: a grommet according to any one of (1) to (8); and a wiring member that is inserted through the through hole of the grommet.

[0023] According to this grommet-equipped wiring member, the engaging portion and the mating engaging portion are continuously engaged with each other, so that the stress burden can be distributed over the entire area of ​​the engagement. For example, when a force is applied to release the engagement, the force burden is distributed over the entire area to which the force is applied, compared to a configuration in which only a portion of the engagement is applied. Therefore, the engagement state of the engaging portion is easily maintained. In addition, because the continuous engagement state is maintained, the watertight state is easily maintained over the entire penetration direction.

[0024] [Details of the embodiment of the present disclosure] Specific examples of the grommet-equipped wiring member of the present disclosure will be described below with reference to the drawings. Note that the present invention is not limited to these examples, but is defined by the claims, and is intended to include all modifications within the meaning and scope of the claims.

[0025] In each drawing, for convenience of explanation, some of the configurations may be exaggerated or simplified. Also, the dimensional ratio of each part may differ from drawing to drawing. Also, "parallel" and "orthogonal" in this specification do not only mean strictly parallel or orthogonal, but also include roughly parallel or orthogonal within the range in which the action and effect of this embodiment can be achieved.

[0026] [Embodiment 1] The grommet-equipped wiring member 1 according to the first embodiment will be described below.

[0027] <Overall composition> First, the overall configuration of the grommet-equipped wiring member 1 will be described. Fig. 1 is a front view showing the grommet 10 together with the wiring member 2 and the vehicle body panel 3. Fig. 2 is a perspective view showing the grommet 10. In Figs. 1 and 2, an engagement portion 20 is shown by an imaginary line.

[0028] <About grommet-equipped wiring component 1> The grommet-equipped wiring member 1 includes a wiring member 2 and a grommet 10. The grommet 10 is a member that is attached to a through hole 3a formed in a vehicle body panel 3 while being sheathed by the wiring member 2. The vehicle body panel 3 is, for example, a plate-like member that separates an engine room from a passenger compartment. In FIG. 1, for example, the right side of the vehicle body panel 3 is the engine room, and the left side of the vehicle body panel 3 is the passenger compartment. In this state, the grommet 10 blocks the gap between the wiring member 2 and the through hole 3a, suppressing the intrusion of water from the engine room into the passenger compartment. The vehicle body panel 3 is formed with a through hole 3a for routing the wiring member 2. The through hole 3a is circular here, but does not necessarily have to be circular.

[0029] The wiring member 2 is configured by bundling a plurality of electric wires. Note that in FIG. 1, each of the plurality of electric wires is not illustrated, and only the outer diameter of the wiring member 2 is illustrated. The wiring member 2 may include an optical cable, etc. Furthermore, the electric wires included in the wiring member 2 may branch off at an intermediate portion in the extending direction of the wiring member 2. The portion of the wiring member 2 that is inserted into the grommet 10 is bundled into one wire. The wiring member 2 connects, for example, various electric components on the engine room side to various electric components on the passenger compartment side.

[0030] <Grommet 10> 1 and 2, the grommet 10 has a through hole 11a through which the wiring member 2 passes. The grommet 10 is tubular. The grommet 10 includes a tubular portion 11, an engagement portion 20, and a mating engagement portion 30. The grommet 10 further includes flexible portions 14 and 15, and a slider 40.

[0031] The tubular portion 11 is formed of an elastic material such as rubber. The tubular portion 11 includes a cylindrical first cover portion 16 that covers the wiring member 2 on the engine room side, a cylindrical second cover portion 17 that covers the wiring member 2 on the passenger compartment side, and a fitting portion 18 that fits into the through hole 3a of the vehicle body panel 3. The fitting portion 18 is formed with large outer diameter portions 18a, 18b and a groove portion 18c located between the large outer diameter portions 18a, 18b. The outer diameter of the annular bottom of the groove portion 18c is set to be approximately the same as the inner diameter of the through hole 3a. The grommet 10 is attached to the vehicle body panel 3 with the inner peripheral edge portion of the through hole 3a of the vehicle body panel 3 fitted into the groove portion 18c. The grommet 10 blocks the gap between the wiring member 2 and the inner peripheral edge portion of the through hole 3a, thereby suppressing water from entering the vehicle compartment through the through hole 3a from the engine room.

[0032] A through hole 11a is formed in the tubular portion 11. The inner diameter of the through hole 11a is, for example, large enough to be in close contact with the wiring member 2 in the portion disposed in the vehicle interior. The portion of the through hole 11a disposed in the vehicle interior has an inner diameter equal to or smaller than the outer diameter of the wiring member 2. After the periphery of the wiring member 2 is covered by the tubular portion 11, the end of the first cover portion 16 on the engine room side and the portion of the wiring member 2 protruding from the end of the first cover portion 16 may be wrapped around, for example, with an adhesive tape. The end of the second cover portion 17 on the vehicle room side and the portion of the wiring member 2 protruding from the end of the second cover portion 17 may be wrapped around, for example, with an adhesive tape. This prevents water from entering the vehicle interior from the engine room through the through hole 11a. The periphery of the first cover portion 16 and the wiring member 2 may be sealed with another sealing member instead of the adhesive tape. Similarly, the periphery of the second cover portion 17 and the wiring member 2 may be sealed with another sealing member instead of the adhesive tape.

[0033] The tubular portion 11 includes a pair of a first divided end 12 and a second divided end 13 along the penetration direction A of the wiring member 2. The first divided end 12 and the second divided end 13 are formed continuously from one end to the other of the tubular portion 11. The tubular portion 11 is separated in the penetration direction A by the first divided end 12 and the second divided end 13. The first divided end 12 and the second divided end 13 are positioned opposite each other. In this embodiment, the first divided end 12 and the second divided end 13 are a pair, but at least one pair is sufficient. For example, the first divided end 12 and the second divided end 13 may be two or more pairs.

[0034] <Engagement portion 20 and counterpart engagement portion 30> FIG. 3 is a side view showing the engaging portion 20 and the mating engaging portion 30 together with the slider 40. As shown in FIG.

[0035] In this embodiment, the engaging portion 20 is fixed to the flexible portion 14, which will be described in detail later. The mating engaging portion 30 is fixed to the flexible portion 15, which will be described in detail later. The engaging portion 20 and the flexible portion 14 may be fixed to each other by, for example, adhesive or heat welding, or may be integrally formed. Similarly, the mating engaging portion 30 and the flexible portion 15 may be fixed to each other by, for example, adhesive or heat welding, or may be integrally formed. The engaging portion 20 is formed along the first divided end 12. The mating engaging portion 30 is formed along the second divided end 13. The mating engaging portion 30 can be engaged with the engaging portion 20. The engaging portion 20 and the mating engaging portion 30 are made of a material having elasticity to such an extent that they can be engaged with and disengaged from each other. The engaging portion 20 and the mating engaging portion 30 may be made of, for example, polyethylene or polypropylene.

[0036] In this embodiment, two sets of engaging portions 20 and counterpart engaging portions 30 are provided. The two sets of engaging portions 20 and counterpart engaging portions 30 are positioned in parallel at different distances from the tubular portion 11. In this embodiment, a configuration including two sets of engaging portions 20 and counterpart engaging portions 30 is adopted, but a combination of one set of engaging portions 20 and counterpart engaging portions 30, or a combination of three or more sets of engaging portions 20 and counterpart engaging portions 30 may also be used.

[0037] The engaging portion 20 and the mating engaging portion 30 are continuously engaged with each other along the penetration direction A. This results in the first divided end 12 and the second divided end 13 being continuously maintained in a waterproof state along the penetration direction A.

[0038] The engaging portion 20 extends along the through-hole direction A. The engaging portion 20 has two engaging ridges 21, 22 and a support wall portion 20a that supports the engaging ridges 21, 22. The support wall portion 20a is a portion that extends from the portion fixed to the flexible portion 14 to the engaging ridges 21, 22. The two engaging ridges 21, 22 are positioned in parallel with different distances from the tubular portion 11. The engaging ridges 21, 22 are, for example, aligned in a direction perpendicular to the through-hole direction A.

[0039] The engaging ridges 21, 22 have tip ends 21a, 22a and base ends 21b, 22b. The base ends 21b, 22b are supported by the support wall 20a. The tip ends 21a, 22a protrude from the base ends 21b, 22b in a side view. The tip ends 21a, 22a of the engaging ridges 21, 22 are formed wider than the base ends 21b, 22b.

[0040] The mating engagement portion 30 extends along the penetration direction A. The mating engagement portion 30 has engagement grooves 31, 32. The engagement grooves 31, 32 have narrowed exits 31e, 32e. The specific configuration is as follows. The engagement groove 31 is surrounded by the support wall portion 30a, a protruding receiving portion 31a extending from the support wall portion 30a, and a roof portion 31b extending from the upper end portion of the support wall portion 30a. The protruding receiving portion 31a has an extension portion 31c extending from the support wall portion 30a and a protrusion portion 31d protruding upward from the tip portion of the extension portion 31c. In the engagement groove 31, an exit 31e is formed by the tip of the protrusion portion 31d and the roof portion 31b.

[0041] The engagement groove 32 is surrounded by the support wall 30a, a protruding receiving portion 32a extending from the support wall 30a, and the underside of the protruding receiving portion 31a. The protruding receiving portion 32a has an extension portion 32c extending from the support wall 30a and a protrusion 32d protruding upward from the tip of the extension portion 32c. An outlet 32e is formed in the engagement groove 32 by the tip of the protrusion 31d and the underside of the protruding receiving portion 31a.

[0042] The widths of the tips 21a, 22a of the engaging ridges 21, 22 are larger than the widths of the exits 31e, 32e of the engaging grooves 31, 32. The engaging grooves 31, 32 are formed in a shape that conforms to the shape of the engaging ridges 21, 22. The shape that conforms to the shape of the engaging ridges 21, 22 means a shape that allows the engaging ridges 21, 22 to be accommodated in the engaging grooves 31, 32. For example, in a side view from the penetration direction A, the engaging ridges 21, 22 are equal to or slightly smaller than the engaging grooves 31, 32. Also, the widths of the base ends 21b, 22b of the engaging ridges 21, 22 are smaller than the widths of the exits 31e, 32e of the engaging grooves 31, 32. The engaging ridges 21, 22 pass through the exits 31e, 32e of the engaging grooves 31, 32 and continuously engage with the engaging grooves 31, 32.

[0043] In this embodiment, the engaging portion 20 has the engaging ridges 21, 22, and the mating engaging portion 30 has the engaging grooves 31, 32, but the engaging portion 20 may have the engaging groove, and the mating engaging portion 30 may have the engaging ridge. Also, in this embodiment, the engaging portion 20 has two pairs of the mating engaging portion 30, but the engaging portion 20 may have only one pair of the mating engaging portion 30, or the engaging portion 20 may have three or more pairs of the mating engaging portion 30.

[0044] Support wall portion 20a of engaging portion 20 includes bellows portion 23 between the fixed portion with flexible portion 14 and engaging ridge portions 21, 22. Bellows portion 23 includes a plurality of flat portions 24 and a plurality of bent portions 25 located between flat portions 24. Bellows portion 23 can expand and contract by bending the angle at which flat portions 24 join together at bent portions 25. By including bellows portion 23, engaging portion 20 has expandability in width direction B in side view.

[0045] Similarly, the support wall portion 30a of the mating engagement portion 30 includes a bellows portion 33 between the fixed portion with the flexible portion 15 and the engagement grooves 31, 32. The bellows portion 33 includes a plurality of flat portions 34 and a bent portion 35 located between the flat portions 34. The bellows portion 33 can be expanded and contracted by bending the angle at which the flat portions 34 are connected to each other at the bent portion 35. By providing the bellows portion 33, the mating engagement portion 30 has elasticity in the width direction B in a side view. For example, when the grommet 10 is attached to the vehicle body panel 3, it is assumed that the flexible portions 14, 15 are folded and stored. In this way, even if a force is generated in a direction in which the engagement portion 20 and the mating engagement portion 30 are shifted from each other as a result of the flexible portions 14, 15 being folded, the shift is absorbed by the bellows portions 23, 33.

[0046] As shown in Figs. 1 to 3, the end of the engagement portion 20 is provided with stoppers 27, 28 for engaging the slider 40, which will be described later. The end of the engagement portion 20 on the passenger compartment side is provided with the stopper 27, and the end on the engine room side is provided with the stopper 28. In this embodiment, the end of the mating engagement portion 30 on the passenger compartment side is also provided with a stopper 37 for restricting the slider 40. When the slider 40 is located at the end of the engagement portion 20 or the mating engagement portion 30, the stoppers 27, 28, 37 restrict the slider 40 from coming off the engagement portion 20 or the mating engagement portion 30. Specifically, the stoppers 27, 28, 37 come into contact with an outer guide 42 of the slider 40, which will be described later in detail, thereby restricting the slider 40 from coming off the engagement portion 20 or the mating engagement portion 30.

[0047] <Flexible parts 14, 15> The flexible parts 14 and 15 are deformable. The flexible parts 14 and 15 are made of a highly flexible material. High flexibility means that they are easily deformed by an external force. The flexible parts 14 and 15 may have a flexibility that allows them to bend and deform more easily than the tubular part 11. Also, preferably, the flexible parts 14 and 15 may have a flexibility that allows them to bend and deform more easily than the engagement part 20 and the counterpart engagement part 30. The flexible parts 14 and 15 may be formed into a sheet shape from, for example, vinyl chloride resin, polyethylene, or polypropylene.

[0048] The flexible portion 14 is located between the first divided end 12 and the engaging portion 20. The flexible portion 14 extends along the first divided end 12. The flexible portion 14 also serves to connect between the first divided end 12 and the engaging portion 20. The flexible portion 15 is located between the second divided end 13 and the mating engaging portion 30. The flexible portion 15 extends along the second divided end 13. The flexible portion 15 also serves to connect between the second divided end 13 and the mating engaging portion 30. In this embodiment, the flexible portion 14 and the flexible portion 15 are provided, but only one of them may be provided. For example, when only the flexible portion 14 is provided, the mating engaging portion 30 is directly fixed to the second divided end 13. When only the flexible portion 15 is provided, the engaging portion 20 is directly fixed to the first divided end 12.

[0049] In this embodiment, as shown in Figures 1 and 2, the outer circumferential shape of the grommet is formed with projections and recesses in the penetration direction A. Flexible parts 14 and 15 are interposed between the engaging part or the mating engaging part and the part of grommet 10 forming the uneven outer shape, and absorb the projections and recesses formed in the outer circumferential shape of the grommet. Therefore, flexible parts 14 and 15 allow engaging part 20 and mating engaging part 30 to linearly engage with each other along the penetration direction A.

[0050] When the grommet 10 is attached to the through hole 3a formed in the vehicle body panel 3, the flexible parts 14, 15 are wound around the outer periphery of the part of the tubular part 11 that is attached to the through hole 3a (see FIG. 1). At this time, due to the flexibility of the flexible parts 14, 15, the flexible parts 14, 15 are wound in close contact with the outer periphery of the tubular part 11. In addition, the slider 40, which will be described in detail later, is not positioned to abut against the through hole 3a when the engaging part 20 and the mating engaging part 30 are engaged. Specifically, the slider 40 is positioned at the ends of the engaging part 20 and the mating engaging part 30 while being restricted by the stoppers 27, 37.

[0051] In the case of the engaging portion 20 and the mating engaging portion 30 not provided with the stoppers 27, 37, the slider 40 may be completely removed from the engaging portion 20 and the mating engaging portion 30. In this manner, when the slider 40 is completely removed from the engaging portion 20 and the mating engaging portion 30, the slider 40 is attached again from the ends of the engaging portion 20 and the mating engaging portion 30 when the engagement between the engaging portion 20 and the mating engaging portion 30 is released.

[0052] In this embodiment, a configuration in which the flexible portions 14 and 15 are provided is adopted, but a configuration in which the flexible portions 14 and 15 are not provided may also be adopted.

[0053] <Slider 40> 1 to 3, the slider 40 moves along the engaging portion 20 and the mating engaging portion 30. The slider 40 is made of, for example, polyethylene or polypropylene. The slider 40 engages or disengages the engaging portion 20 and the mating engaging portion 30 depending on the moving direction of the slider 40. The slider 40 includes a base 41, a pair of outer guides 42, and an inner guide 43. The lower surface of the base 41 moves along the upper portions of the engaging portion 20 and the mating engaging portion 30.

[0054] The pair of outer guides 42 hang down from both ends in the width direction of the base 41. The pair of outer guides 42 may be flexible. The pair of outer guides 42 may be elastically deformable inward and outward with both ends in the width direction of the base 41 as fulcrums. The pair of outer guides 42 press the outer side surface 29 of the engagement portion 20 and the outer side surface 39 of the mating engagement portion 30 inward. This inward pressing force causes the engagement portion 20 and the mating engagement portion 30 to engage with each other. Specifically, the tip 21a of the engagement protrusion portion 21 of the engagement portion 20 presses the outlet 31e of the engagement groove 31 of the mating engagement portion 30. As a result, the outlet 31e expands, and the tip 21a passes through the outlet 31e and is stored in the engagement groove 31. In this way, as the slider 40 moves toward the engagement direction (in the vehicle cabin direction in this embodiment shown in FIG. 2), the engagement portion 20 and the mating engagement portion 30 engage with each other.

[0055] The relationship between the engaging ridge 22 and the engaging groove 32 is similar to that between the engaging ridge 21 and the engaging groove 31 described above, and therefore a description thereof will be omitted.

[0056] Furthermore, the inner guide 43 is located on the base 41 closer to the cabin in the penetration direction A than the outer guide 42. The inner guide 43 hangs down from the widthwise center of the base 41. As shown in FIG. 3, the inner guide 43 can enter between the engagement portion 20 and the mating engagement portion 30. As the slider 40 moves in the disengaging direction (the direction from the cabin side to the engine room side in this embodiment shown in FIG. 2), the inner guide 43 sequentially enters between the mutually engaged engagement portion 20 and the mating engagement portion 30, and the engagement between the engagement portion 20 and the mating engagement portion 30 is released.

[0057] <Manufacturing method and assembly method of grommet-equipped wiring member 1> The tubular portion 11 of the grommet 10 is formed by injection molding. The first divided end 12 and the second divided end 13 may be formed by injection molding using a mold. Alternatively, the first divided end 12 and the second divided end 13 may be formed by forming the grommet into a pipe shape using a mold and then cutting it in the penetration direction A. In this manner, the flexible portion 14 to which the engagement portion 20 is attached is fixed to the first divided end 12 of the tubular portion 11. Similarly, the flexible portion 15 to which the mating engagement portion 30 is attached is fixed to the second divided end 13 of the tubular portion 11. This fixing may be performed by adhesive or welding. The flexible portions 14 and 15 may be formed integrally with the tubular portion 11.

[0058] Next, the wiring member 2 is stored in the through hole 11a from between the first divided end 12 and the second divided end 13. In order to store the wiring member 2 in a grommet that is not separated by the first divided end 12 and the second divided end 13, for example, a dedicated device is used to enlarge the through hole of the grommet and then the wiring member 2 is passed through it. In contrast, the grommet 10 of the present disclosure is separated by the first divided end 12 and the second divided end 13, and therefore the wiring member 2 is stored in the through hole 11a without enlarging the through hole using a dedicated device.

[0059] In this state, the engaging portion 20 and the mating engaging portion 30 are engaged by the movement of the slider 40. Thereafter, the end of the first cover portion 16 and the portion of the wiring member 2 protruding from the end of the first cover portion 16 may be wrapped with adhesive tape. Also, the end of the second cover portion 17 and the portion of the wiring member 2 protruding from the end of the second cover portion 17 may be wrapped with adhesive tape. In this manner, the grommet-equipped wiring member 1 is manufactured.

[0060] This wiring member 1 with grommets is press-fitted into the through-hole 3 a of the vehicle body panel 3 so that the fitting portion 18 fits into the through-hole 3 a of the vehicle body panel 3 , and the wiring member 1 with grommets is fixed to the vehicle body panel 3 .

[0061] When the wiring member 2 in such a grommet-equipped wiring member 1 is replaced or added, first, the grommet 10 is removed from the vehicle body panel 3. At this time, the existing wiring member 2 may be maintained passing through the through hole 3a. With the grommet 10 removed from the vehicle body panel 3, the adhesive tape is removed as necessary. Furthermore, the slider 40 is moved to release the engagement between the engagement portion 20 and the mating engagement portion 30. The slider 40 may be removed from one of the engagement portion 20 and the mating engagement portion 30 and left on the other, or may be removed from both. In this state, a part of the wiring member 2 may be replaced, or a wiring member may be added.

[0062] After replacing or adding the wiring member 2, the engaging portion 20 and the mating engaging portion 30 are engaged again by utilizing the slider 40. Then, in the same manner as above, it is attached to the through hole 3a.

[0063] <Effects, etc.> According to the wiring member 1 with grommets configured as above, the engaging portion 20 and the mating engaging portion 30 are continuously engaged with each other, so that the stress burden can be distributed over the entire area of ​​the engagement. For example, when a force acts on the engaging portion 20 and the mating engaging portion 30 to disengage them, the stress burden can be distributed over the entire area where the force is applied, and the engaged state is more easily maintained than in a configuration in which only a portion of the engaging portion is engaged. In addition, since the engaging portion 20 and the mating engaging portion 30 are continuously engaged with each other, it is easier to realize a watertight structure over the entire penetration direction A.

[0064] Furthermore, because the tubular portion 11 can be divided into the first divided end 12 and the second divided end 13, for example, as described above, the grommet 10 can be removed from the through hole 3a and the wiring member 2 can be inserted through the through hole 3a. In this state, the grommet 10 can be easily removed from the wiring member 2. Furthermore, wiring members can be easily added to the grommet 10. This makes it easy to perform tasks such as replacing or adding the wiring member 2. Furthermore, because the grommet 10 can be easily attached to the wiring member 2 in this way, there is no need for dedicated equipment or tools for inserting the wiring member 2 into the grommet 10, which was a problem in the past.

[0065] In addition, between the first divided end 12 and the engaging portion 20 and between the second divided end 13 and the mating engaging portion 30, there are provided a deformable flexible portion 14 extending along the first divided end 12 and a deformable flexible portion 15 extending along the second divided end 13. Therefore, even if the outer peripheral shape of the grommet 10 has irregularities in the penetration direction A, the irregularities are absorbed by the shape deformation of the flexible portions 14, 15 between the first divided end 12 and the engaging portion 20 and between the second divided end 13 and the mating engaging portion 30. As a result, even if the engaging portion 20 and the mating engaging portion 30 are made to have a linear shape rather than a shape that follows the irregular shapes of the first divided end 12 and the second divided end 13, it is difficult to affect the ease of engagement. In particular, when engagement is performed by the movement of the slider 40, if the engaging portion 20 and the mating engaging portion 30 are linear, the slider 40 is more likely to move.

[0066] In addition, the device further includes a slider 40 that moves along the engagement portion 20 and the opposing engagement portion 30 and engages or disengages the engagement portion 20 and the opposing engagement portion 30 depending on the direction of movement, so that engagement can be easily achieved by sliding the slider 40.

[0067] Further, the ends of the engaging portion 20 and the mating engaging portion 30 on the passenger compartment side (the sides engaged by the movement of the slider 40) are provided with stoppers 27, 37 that engage with the slider 40 so as to prevent the slider 40 from coming off. The ends of the engaging portion 20 or the mating engaging portion 30 on the engine room side (the sides disengaged by the movement of the slider 40) are provided with a stopper 28 that engages with the slider 40 so as to prevent the slider 40 from coming off. For this reason, since the stoppers 27, 37, 28 engage the slider 40, even if the engaging portion 20 and the mating engaging portion 30 are engaged to the ends, for example, the slider 40 does not come off the engaging portion 20 or the mating engaging portion 30 even if the engaging portion 20 and the mating engaging portion 30 are disengaged. Therefore, the slider 40 is prevented from being lost.

[0068] In addition, the mating engagement portion 30 has engagement grooves 31, 32 extending along the penetration direction A and narrowing outlets 31e, 32e, and the engagement portion 20 has engagement ridges 21, 22 extending along the penetration direction A and formed with tips 21a, 22a wider than base ends 21b, 22b, so that engagement is maintained without using a filler or waterproofing material that is required for grommets having locking means scattered at multiple locations on the divided ends of the divided body. Furthermore, the engagement between the engagement grooves 31, 32 and the engagement ridges 21, 22 ensures waterproofing.

[0069] In addition, since two sets of engaging portions 20 and mating engaging portions 30 are provided and the two sets of engaging portions 20 and mating engaging portions 30 are positioned in parallel at different distances from the tubular portion 11, soundproofing and waterproofing properties are improved.

[0070] Furthermore, since grommet 10 includes only one pair of first divided end 12 and second divided end 13, soundproofing and waterproofing properties are improved compared to when two or more pairs are included.

[0071] <Other> In the above embodiment, the engaging portion 20 and the mating engaging portion 30 are configured to include the stoppers 27, 37, 28, but the present invention is not limited to this configuration. The stoppers may be provided only on the end of the engaging portion 20 on the vehicle interior side (the side engaged by the movement of the slider 40) or on the end of the mating engaging portion 30 on the vehicle interior side (the side engaged by the movement of the slider 40). Also, the engaging portion 20 and the mating engaging portion 30 may not include the stoppers 27, 37, 28, and the slider 40 may be intentionally removed from the engaging portion 20 and the mating engaging portion 30. With this configuration, the slider 40 will not be caught in the mating portion between the fitting portion 18 and the through hole 3a, and will not affect the fitting. Furthermore, the engaging portion 20 may be configured to be engaged by pressing the outer side surface 29 of the engaging portion 20 and the outer side surface 39 of the mating engaging portion 30, without using a slider.

[0072] In the above embodiment, the direction in which the slider 40 moves to engage is from the engine room side to the passenger compartment side, but is not limited to this direction. By reversing the direction of the slider 40, the direction in which the slider 40 moves to engage can be from the passenger compartment side to the engine room side.

[0073] The configurations described as the first embodiment and its modified examples can be combined as appropriate as long as they are not mutually inconsistent. [Explanation of symbols]

[0074] 1 Wiring material with grommet 2 Wiring materials 3 Body Panel 3a Through hole 10 Grommet 11 Tubular part 11a Through hole 12 1st split end 13 Second split end 14,15 Flexible section 16 First cover part 17 Second cover part 18 Fitting part 18a,18b Large outer diameter part 18c Groove 20 Engagement part 20a Support wall part 21,22 Engagement protrusion 21a,22a Tip 21b,22b proximal end 23,33 Bellows 24,34 Flat part 25,35 Bend 27, 28, 37 Stopper 29,39 outer side 30 Counterpart engagement part 30a Support wall part 31, 32 Engagement groove 31a,32a Exit 40 Slider 41 Base 42 Outer guide 43 Inner guide A Through direction B direction

Claims

1. A tubular grommet having a through hole through which a wiring member passes, A tubular portion in which the through hole is formed; An engagement portion, a mating engagement portion engageable with the engagement portion; Equipped with the tubular portion includes at least one pair of a first divided end and a second divided end along a penetration direction of the wiring member, The engagement portion is formed along the first divided end, The mating engagement portion is formed along the second divided end, A grommet in which the engaging portion and the mating engaging portion continuously engage with each other along the penetration direction, thereby maintaining the first divided end and the second divided end in a continuously waterproof state along the penetration direction.

2. 2. The grommet of claim 1, A grommet comprising a deformable flexible portion extending along the first divided end or the second divided end, at least one of between the first divided end and the engagement portion and between the second divided end and the mating engagement portion.

3. 3. The grommet according to claim 1 or 2, The grommet further includes a slider that moves along the engaging portion and the mating engaging portion, and engages or disengages the engaging portion and the mating engaging portion depending on a direction of movement of the slider.

4. 4. The grommet of claim 3, At least one end of the engaging portion and the mating engaging portion is provided with a stopper that engages with the slider to prevent the slider from coming off.

5. 4. The grommet of claim 3, The slider is detachable from the ends of the engagement portion and the mating engagement portion.

6. 3. The grommet according to claim 1 or 2, One of the engaging portion and the mating engaging portion has an engaging groove extending along the penetration direction and narrowing at an outlet thereof, A grommet, wherein the other of the engaging portion and the mating engaging portion extends along the penetrating direction and has an engaging ridge portion whose tip is formed wider than its base end, and the engaging ridge portion passes through the outlet of the engaging groove and continuously engages with the engaging groove.

7. 3. The grommet according to claim 1 or 2, The engaging portion and the mating engaging portion are provided in a plurality of pairs, A grommet, wherein the plurality of pairs of the engaging portion and the mating engaging portion are positioned in parallel at different distances from the tubular portion.

8. 3. The grommet according to claim 1 or 2, The grommet includes only one pair of the first divided end and the second divided end.

9. The grommet according to claim 1 or 2; a wiring member that is inserted through the through hole of the grommet.

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