JP2021087288A - Grommet and wire harness - Google Patents

Abstract

To reduce insertion force.SOLUTION: An elastically deformable oval-shaped and bowl-shaped fitting body 3 has a connection wall 10 to which one end of a cylinder body 2 inserting a harness body We in the inside of a cylinder is connected from an outer wall surface 11 side, and which communicates the inside of the cylinder to an inner space 3a at one end, a peripheral wall 20 projected out from an outer peripheral edge portion of the connection wall to an opening portion side, a first fitting wall 30 coaxially united with an end portion on the opening portion side on the peripheral wall at an outer peripheral edge portion, a second fitting wall 40 coaxially disposed while spacing from the first fitting wall in an axial direction, a coupling wall 50 coupling inner peripheral edge portions of the first fitting wall and the second fitting wall, and a fitting groove 60 that is surrounded by the first fitting wall, the second fitting wall, and the coupling wall, and in which a peripheral edge portion of the through-hole Pw1 in a wall body Pw is fitted. On an inner wall surface 12 of the connection wall, a notch 12a extending in a lateral direction is formed between one end and a wiring path 3c of the harness body in a longitudinal direction and between the other end and the wiring path of the harness body in the longitudinal direction.SELECTED DRAWING: Figure 7

Description

The present invention relates to grommets and wire harnesses.

Conventionally, in a wire harness, an electric wire is inserted into a through hole provided in a wall body (for example, a panel of a vehicle body in a vehicle), so that the electric wire is transmitted from one space separated by the wall body to the other space. Pull in. Therefore, in order to protect the electric wire from the peripheral edge of the through hole and prevent the liquid from entering the gap between the through hole and the electric wire, a grommet that closes the gap is attached to the wall body. For example, the grommet has a cylinder through which an electric wire is inserted into the cylinder, and a fitting body provided at at least one end of the cylinder and fitted into the peripheral edge of a through hole in the wall body. This type of grommet is disclosed in, for example, Patent Document 1 below. In this grommet, the tubular body inserted through the through hole of the wall body is pulled, the fitting body is inserted into the through hole, and the fitting body is fitted to the peripheral edge of the through hole in the wall body.

Japanese Unexamined Patent Publication No. 2015-188295

By the way, in the fitted body, the grommet secures the holding force after fitting with respect to the peripheral edge portion of the through hole, and secures the water blocking property between the two spaces sandwiching the wall body. For this reason, the conventional fitting body suppresses deformation after fitting by increasing its own rigidity with ribs or the like. However, since this conventional fitting has increased rigidity, the amount of deformation is reduced when fitting to the peripheral edge of the through hole, which may cause an increase in the insertion force into the through hole.

Therefore, an object of the present invention is to provide a grommet and a wire harness capable of reducing the insertion force when assembling to a wall body.

In order to achieve the above object, the grommet according to the present invention has a harness body having one electric wire or having a plurality of electric wires bundled and being inserted into an oval-shaped through hole of a wall body. A cylinder and a fitting that is formed in a bowl shape having an internal space communicating with the inside of the cylinder, is elastically deformable, and fits the opening side into the peripheral edge of the through hole in the wall. The fitting body has an oval-shaped connecting wall in which one end of the tubular body is connected from the outer wall surface side and the inside of the tubular body communicates with the internal space at the one end of the tubular body. An oval tubular peripheral wall protruding from the outer peripheral edge of the connecting wall toward the opening side, and an oval in which the outer peripheral edge is coaxially coupled to the end of the oval ring on the opening side of the peripheral wall. An annular first fitting wall, an oval annular second fitting wall coaxially arranged axially spaced apart from the first fitting wall, the first fitting wall and the first fitting wall. 2 The through hole in the wall body surrounded by an oval annular connecting wall connecting the inner peripheral edges of the fitting wall, the first fitting wall, the second fitting wall, and the connecting wall. It has an oval annular fitting groove into which the peripheral portion of the harness is fitted, and the inner wall surface of the connection wall has one end in the longitudinal direction and the other end in the longitudinal direction between the wiring path of the harness body and the other end in the longitudinal direction. It is characterized in that a notch extending in the lateral direction is formed between the harness body and the wiring path.

Here, it is desirable that both ends of the notch in the extending direction extend to the inner peripheral surface of the peripheral wall.

Further, the fitting body has a harness holding portion that is directed from the inner wall surface of the connecting wall toward the opening side and protrudes from the opening in order to hold the harness main body, and the harness holding portion is It is desirable to provide one of the notches in the connecting wall and the wiring path of the harness body and between the other notch in the connecting wall and the wiring path of the harness body. ..

Further, it is desirable that the notch is connected to the root of the harness holding portion on the inner wall surface side of the connecting wall.

Further, in order to achieve the above object, the wire harness according to the present invention is inserted into a harness body having one electric wire or a bundle of a plurality of electric wires and an oval-shaped through hole of a wall body. A grommet that protects the harness body is provided, and the grommet is formed in a bowl shape having an internal space that allows the harness body to be inserted into the cylinder and an internal space that allows the harness body to be inserted into the cylinder. It has a fitting body that is elastically deformable and fits the opening side into the peripheral edge of the through hole in the wall body, and the fitting body has one end of the tubular body connected from the outer wall surface side and said. An oval-shaped connecting wall that communicates the inside of the cylinder with the internal space at one end of the cylinder, an oval-shaped peripheral wall that projects from the outer peripheral edge of the connecting wall toward the opening side, and the above. The first fitting wall of the oval ring in which the outer peripheral edge is coaxially coupled to the end of the oval ring on the opening side of the peripheral wall and the first fitting wall coaxially spaced from the first fitting wall in the axial direction. An oval-shaped second fitting wall arranged above, an oval-shaped connecting wall in which the inner peripheral edges of the first fitting wall and the second fitting wall are connected to each other, and the first fitting wall. And an oval annular fitting groove that is surrounded by the second fitting wall and the connecting wall and into which the peripheral edge portion of the through hole in the wall body is fitted, and is formed on the inner wall surface of the connecting wall. Is that a notch extending in the lateral direction is formed between one end in the longitudinal direction and the wiring path of the harness body and between the other end in the longitudinal direction and the wiring path of the harness body. It is a feature.

The grommet and wire harness according to the present invention are the fitting body, between one end of the inner wall surface of the connecting wall in the longitudinal direction and the wiring path of the harness body, and the other end of the inner wall surface of the connecting wall in the longitudinal direction and the harness body. A notch extending in the lateral direction is provided between the wiring path and the line. Therefore, in the mating body, when the tubular body is pulled, each notch causes both ends of the connecting wall to be more inside in the longitudinal direction, as compared with the case where such a notch is not provided. It collapses to the space side. Then, in this fitting body, both ends in the longitudinal direction of the peripheral wall and the first fitting wall fall toward the internal space side due to the inclination of the connecting wall, as compared with the case where the respective notches are not provided. .. Therefore, on the longitudinal side of the fitting body, the peripheral wall and the first fitting wall are tilted toward the internal space side due to the elastic deformation of the peripheral wall and the first fitting wall toward the internal space side and the tilting operation of the peripheral wall and the first fitting wall toward the internal space side due to the notch. 1 The fitting wall can be passed through the through hole. Therefore, the grommet and the wire harness according to the present invention can reduce the insertion force when assembling to the wall body, and can fit the fitting body into the peripheral edge portion of the through hole in the wall body with a low insertion force.

FIG. 1 is a perspective view showing a grommet and a wire harness before being assembled to the vehicle body side panel in the embodiment. FIG. 2 is a perspective view of the grommet and the wire harness before being assembled to the vehicle body side panel in the embodiment as viewed from different angles. FIG. 3 is a perspective view showing the grommet and the wire harness after being assembled to the vehicle body side panel in the embodiment. FIG. 4 is a perspective view of the grommet and the wire harness after being assembled to the vehicle body side panel in the embodiment as viewed from different angles. FIG. 5 is a plan view of the grommet of the embodiment as viewed from the opening side of the fitting body on the vehicle body side. FIG. 6 is an enlarged view of the vehicle body side fitting body in the cross section taken along line XX of FIG. FIG. 7 is an enlarged view of the vehicle body side fitting body in the YY line cross section of FIG. FIG. 8 is a cross-sectional view showing a mounting process on the lateral side of the fitting body on the vehicle body side. FIG. 9 is a cross-sectional view showing a mounting process on the lateral side of the fitting body on the vehicle body side. FIG. 10 is a cross-sectional view showing a mounting process on the longitudinal side of the fitting body on the vehicle body side. FIG. 11 is a cross-sectional view showing after the installation of the fitting body on the vehicle body side in the lateral direction is completed. FIG. 12 is a cross-sectional view showing after the installation of the fitting body on the vehicle body side in the longitudinal direction is completed. FIG. 13 is a cross-sectional view showing a mounting process on the longitudinal side of the fitting body on the vehicle body side.

Hereinafter, embodiments of the grommet and wire harness according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to this embodiment.

[Embodiment]
One of the embodiments of the grommet and the wire harness according to the present invention will be described with reference to FIGS. 1 to 13.

Reference numerals 1 shown in FIGS. 1 to 4 indicate grommets of the present embodiment. The grommet 1 protects the harness body We that is inserted into the through hole Pw1 of the wall body Pw. The harness main body We has one electric wire or a bundle of a plurality of electric wires, and may be an electric wire as a communication line or an electric wire as a power supply line. When the harness main body We is provided with a plurality of electric wires, the plurality of electric wires are grouped together by an exterior component such as a corrugated tube or a resin tape. For example, in the case of a vehicle, the wall body Pw means a panel of a vehicle body or the like. The harness body We is routed in two spaces separated by the wall body Pw by inserting the harness body We into the through hole Pw1 of the wall body Pw. For example, the harness main body We is responsible for communication between devices in each space, and is responsible for supplying power from a power source in one space to an electric device in the other space. The grommet 1 protects the harness body We from the peripheral edge of the through hole Pw1 in the wall body Pw, and prevents liquid (water, etc.) from entering the gap between the through hole Pw1 and the harness body We. It is attached to the wall body Pw. Here, the state in which the grommet 1 and the harness body We are assembled is referred to as a wire harness WH.

For example, the wire harness WH is arranged between the vehicle body side and the moving parts side of the vehicle, and is responsible for communication and power supply between them. The movable part is, for example, a part connected to the vehicle body via a movable connecting part such as a hinge, and is a back door, a side door for a front seat or a rear seat, a trunk lid, and the like. In the wire harness WH exemplified here, the through hole Pwb1 of the wall body Pw on the vehicle body side (hereinafter referred to as “vehicle body side panel”) Pwb and the wall body Pw on the movable component side (hereinafter referred to as “movable side panel”). ) The harness main body We is arranged between the Pwd and the through hole Pwd1 (FIGS. 1 and 2). Then, one end side of the harness body We is routed on the vehicle body side through the through hole Pwb1 of the vehicle body side panel Pwb, and the other end side is routed on the movable component side through the through hole Pwd1 of the movable side panel Pwd. .. The wire harness WH shown here includes, in addition to such a harness body We, a grommet 1 arranged between the through hole Pwb1 of the vehicle body side panel Pwb and the through hole Pwd1 of the movable side panel Pwd. There is. In this wire harness WH, the grommet 1 and the harness body We are bridged between them with a slack, and the grommet 1 and the harness body We are bent in conjunction with the movement of the movable parts with respect to the vehicle body. It is made to bend or stretched to return from the bent state.

The grommet 1 is molded from an elastic material such as an elastomer. The grommet 1 has a tubular body 2 through which the harness body We is inserted into the cylinder, and at least one fitting body 3 to be fitted into the peripheral edge of the through hole Pw1 in the wall body Pw. (FIGS. 1 to 4). In the grommet 1 shown here, the tubular body 2 is arranged between the through hole Pwb1 of the vehicle body side panel Pwb and the through hole Pwd1 of the movable side panel Pwd, and the fitting bodies 3 are arranged at both ends of the tubular body 2. Is provided. The grommet 1 is provided with a harness holding portion 4 described later in at least one of the two fitting bodies 3, and the harness holding portion 4 is also integrally molded (FIG. FIG.). 1 to 7).

In the grommet 1 shown here, one fitting body 3 is a car body side fitting body 3A that is fitted into the peripheral edge portion of the through hole Pwb1 of the car body side panel Pwb (FIGS. 1 to 4). The vehicle body side fitting 3A is provided to protect the harness body We passing through the through hole Pwb1 and to prevent liquid from entering through the through hole Pwb1. On the other hand, the other fitting body 3 is a movable side fitting body 3B that is fitted into the peripheral edge portion of the through hole Pwd1 of the movable side panel Pwd (FIGS. 1 to 4). The movable side fitting 3B is provided to protect the harness body We passing through the through hole Pwd1 and to prevent liquid from entering through the through hole Pwd1. The vehicle body side fitting body 3A and the movable side fitting body 3B may be formed to have the same configuration as each other, or may be formed to have different configurations from each other. In the following, the fitting body 3 will be described by taking the vehicle body side fitting body 3A as an example.

Since the tubular body 2 of the present embodiment is bent or extended between the through hole Pwb1 of the vehicle body side panel Pwb and the through hole Pwd1 of the movable side panel Pwd, it can be elastically deformed along the movement. Formed as a thing. Therefore, the cylindrical body 2 of this example is formed in a cylindrical shape and a bellows shape.

The vehicle body side fitting body 3A is formed in a bowl shape having an internal space 3a, and the internal space 3a is communicated with the inside of the cylinder of the cylinder 2 (FIGS. 2, 6 and 7). Further, the vehicle body side fitting 3A is formed so as to be elastically deformable. Further, the vehicle body side fitting body 3A is formed so that the opening 3b side is fitted into the peripheral edge portion of the through hole Pwb1 in the vehicle body side panel Pwb (FIGS. 2, 6 and 7). Therefore, the vehicle body side fitting body 3A is formed in a shape that matches the shape of the through hole Pwb1 of the vehicle body side panel Pwb. For example, the through hole Pwb1 of the vehicle body side panel Pwb is formed in a circular shape or an oval shape (oval shape or elliptical shape). Therefore, the vehicle body side fitting 3A is formed in a cylindrical shape or an oval tubular shape (long cylindrical shape or elliptical tubular shape) with one end closed. In the grommet 1 of the present embodiment, the tubular body 2 and the vehicle body side fitting body 3A are connected so that their respective tubular axial directions are aligned in the same direction. In the following, the cylinder shaft described without particular reference refers to the cylinder shaft of the vehicle body side fitting body 3A.

Specifically, the vehicle body side fitting body 3A is formed in the following shape when no load is applied.

The vehicle body side fitting body 3A has a connecting wall 10 in which one end of the tubular body 2 is connected from the outer wall surface 11 side and the inside of the tubular body is communicated with the internal space 3a at one end of the tubular body 2 (FIGS. 1 to 1). 4, FIG. 6 and FIG. 7). The connecting wall 10 is formed as, for example, a circular or oval-shaped (oval-shaped or elliptical-shaped) and plate-shaped wall body. In the connection wall 10, one end of the tubular body 2 is connected to the center thereof. For example, in the connection wall 10, a through hole 10a is formed in the center thereof, and an opening at one end of the tubular body 2 is connected to the through hole 10a (FIGS. 6 and 7). Therefore, the through hole 10a serves as a wiring path for the harness body We in the connection wall 10, and connects the wiring path for the harness body We in the cylinder of the cylinder 2 and the wiring route for the harness body We in the internal space 3a. connect. In the vehicle body side fitting body 3A, the region along the tubular axis direction from the through hole 10a of the connection wall 10 toward the opening 3b side is the wiring path 3c of the harness body We in the internal space 3a (FIGS. 6 and 6). 7).

Further, the vehicle body side fitting body 3A has a tubular peripheral wall 20 projecting from the outer peripheral edge portion of the connecting wall 10 toward the opening 3b side (FIGS. 1 to 4, 6 and 7). The peripheral wall 20 is formed as, for example, a cylindrical or oval tubular (long cylindrical or elliptical tubular) wall body. That is, the peripheral wall 20 is formed so that the cross-sectional shape orthogonal to the tubular axis direction is an annular shape or an oval ring shape (an elliptical ring shape or an elliptical ring shape). The peripheral wall 20 may have an orthogonal cross-sectional shape with respect to the tubular axis direction that is uniform at each point on the tubular axis, and the peripheral wall 20 may have an orthogonal cross-sectional shape that is uneven at each point on the tubular axis. There may be. The peripheral wall 20 having an uneven cross-sectional shape orthogonal to the tubular axis direction forms, for example, a frustum that spreads like a trumpet from the connection wall 10 side to the opening 3b side.

Further, the vehicle body side fitting body 3A includes an annular first fitting wall 30 in which the outer peripheral edge portion is coaxially connected to the annular end portion on the opening 3b side of the peripheral wall 20, and the first fitting wall 30. An annular second fitting wall 40 arranged coaxially with respect to the axial direction (that is, the tubular axis direction), and the inner peripheral edges of the first fitting wall 30 and the second fitting wall 40. It has an annular connecting wall 50 in which the portions are connected to each other. The vehicle body side fitting body 3A is a space surrounded by the first fitting wall 30, the second fitting wall 40, and the connecting wall 50, and is an annular shape into which the peripheral edge portion of the through hole Pwb1 in the vehicle body side panel Pwb is fitted. Has a fitting groove 60 (FIGS. 6 and 7).

The first fitting wall 30 and the second fitting wall 40 are formed as, for example, an annular or oval annular (oval or elliptical annular) and plate-shaped wall body. The first fitting wall 30 may have an outer peripheral edge portion and an inner peripheral edge portion at the same position on the axis (that is, on the tubular axis), and the inner peripheral edge portion is open with respect to the outer peripheral edge portion. It may be present on the part 3b side. On the other hand, the second fitting wall 40 is formed so that the outer peripheral edge portion and the inner peripheral edge portion exist at the same position on the axis (that is, on the tubular axis). The connecting wall 50 is an annular shape or an annular shape that connects the inner peripheral edges of the first fitting wall 30 and the second fitting wall 40 according to the shapes of the first fitting wall 30 and the second fitting wall 40. It is formed as an oval ring (oval ring or elliptical ring) and a plate-like wall body. The fitting groove 60 is formed as an annular or oval annular (oval or elliptical annular) groove depending on the shapes of the first fitting wall 30, the second fitting wall 40, and the connecting wall 50.

In this example, the through hole Pwb1 of the vehicle body side panel Pwb is formed in an oval shape (specifically, an oval shape), and the vehicle body side fitting body 3A has an oval tubular shape (specifically, according to the shape of the through hole Pwb1). Is long cylindrical) (FIGS. 1 and 2). Therefore, the connecting wall 10 of this example is formed as an oval-shaped (specifically, oval-shaped) and plate-shaped wall body. Further, the peripheral wall 20 of this example has an oval ring shape (specifically, an oval ring shape) orthogonal to the cylindrical axis direction, and the orthogonal cross-sectional shape is an oval tubular shape that is uneven at each point on the cylindrical axis. It is a (specifically, long-cylindrical) wall body, and is formed as a cone that spreads like a trumpet on the opening 3b side. In the peripheral wall 20 of this example, the outer peripheral surface shape of the end portion on the connecting wall 10 side is smaller than the through hole Pwb1 of the vehicle body side panel Pwb, and the outer peripheral surface shape of the end portion of the first fitting wall 30 is the vehicle body. It is formed so as to be larger than the through hole Pwb1 of the side panel Pwb. Further, the first fitting wall 30 of this example is an oval ring (specifically, an oval ring) and a plate-like wall body, from the outer peripheral edge portion to the inner peripheral edge portion toward the opening 3b side. It is formed to form a narrowing inverted frustum (a frustum shape opposite to that of the peripheral wall 20). On the other hand, the second fitting wall 40 of this example is an oval ring (specifically, an oval ring) and a plate-like wall body, and the outer peripheral edge portion and the inner peripheral edge portion are present at the same position on the axis. It is formed as something to do. In this example, since the inner peripheral edges of the first fitting wall 30 and the second fitting wall 40 each form an oval ring of the same size, the connecting wall 50 has an oval ring (specifically, a length). It is formed as a plate-like wall body (annular). Therefore, the fitting groove 60 of this example is formed as an oval annular (specifically, oval annular) groove corresponding to the shapes of the first fitting wall 30, the second fitting wall 40, and the connecting wall 50. ing. The peripheral portion of the through hole Pwb1 in the vehicle body side panel Pwb is fitted into the fitting groove 60 in the circumferential direction thereof. As described above, the vehicle body side fitting 3A of this example is formed in an oval tubular shape (specifically, a long cylindrical shape) in which one end is closed by the connecting wall 10 and the other end is an opening 3b. Therefore, in the vehicle body side fitting 3A of this example, one of the directions orthogonal to the tubular axis direction is the longitudinal direction, and the orthogonal direction to the tubular axis direction and the longitudinal direction is the lateral direction. ..

The vehicle body side fitting body 3A of the present embodiment holds the harness body We drawn out from the inside of the cylinder body 2 toward the opening 3b side. Therefore, the vehicle body side fitting body 3A has a harness holding portion 4 for holding the harness main body We (FIGS. 1 to 5). The harness holding portion 4 is projected from the inner wall surface 12 of the connecting wall 10 toward the opening 3b and more than the opening 3b in order to hold the harness main body We (FIGS. 5 and 6). The harness holding portion 4 is formed along the wiring path 3c of the harness main body We in the internal space 3a. The harness holding portion 4 holds the harness main body We pulled out from the opening 3b toward the outside of the internal space 3a at a portion protruding from the opening 3b. For example, the harness holding portion 4 is formed as an arc-shaped body having an axis along the tubular axis direction and whose inner peripheral surface is elastically deformable toward the wiring path 3c of the harness main body We. The harness body We is arranged along the axial direction (that is, the tubular axis direction) of the inner peripheral surface of the harness holding portion 4, and in that state, a number of resin tapes (not shown) are applied to the harness holding portion 4 from the outer peripheral surface side. It is also wrapped around and held. The resin tape is wrapped around a portion of the harness holding portion 4 that protrudes from the opening 3b.

In this example, two harness holding portions 4 are provided (FIGS. 1 to 5 and 7). The harness holding portion 4 shown here is between one end of the fitting body 3A on the vehicle body side in the direction orthogonal to the tubular axis direction and the wiring path 3c of the harness body We, and the other end in the orthogonal direction thereof and the wiring path of the harness body We. It is provided between 3c. Here, the harness holding portion 4 is between one end of the vehicle body side fitting 3A in the longitudinal direction and the wiring path 3c of the harness body We, and between the other end in the longitudinal direction and the wiring path 3c of the harness body We. Are provided one by one. In this example, the wiring path of the harness main body We in the harness holding portion 4 is between the two harness holding portions 4, and the harness main body We is sandwiched and held by the pair of harness holding portions 4. The harness main body We is arranged between the inner peripheral surfaces of the pair of harness holding portions 4, and in this state, the resin tape is wound around the pair of harness holding portions 4 from the outer peripheral surface side, whereby the pair of harness main bodies We It is held in a state of being sandwiched between the harness holding portions 4.

The grommet 1 of the present embodiment is assembled to the harness body We via the harness holding portion 4 of each fitting body 3, and each fitting body 3 is attached to the peripheral edge portion of the through hole Pw1 in the wall body Pw. .. For example, for this grommet 1, the tubular body 2 is inserted into the through hole Pwb1 of the vehicle body side panel Pwb, and the outer wall surface 11 of the connection wall 10 of the vehicle body side fitting body 3A is arranged to face the through hole Pwb1 (FIG. 1). .. The operator pulls the tubular body 2 so that the vehicle body side fitting 3A contacts the peripheral edge of the through hole Pwb1 in the vehicle body side panel Pwb, and continues to pull the tubular body 2 even after the contact, thereby causing the vehicle body side fitting 3A. The peripheral portion of the through hole Pwb1 in the vehicle body side panel Pwb is fitted into the fitting groove 60 of the vehicle body side fitting body 3A while elastically deforming. In the vehicle body side fitting body 3A, when the tubular body 2 is pulled, the outer peripheral surface of the peripheral wall 20 in the middle of the tubular axial direction is caught by the peripheral edge portion of the through hole Pwb1 in the vehicle body side panel Pwb, and the tubular body 2 is further pulled. As a result, it elastically deforms while being dragged by its peripheral edge.

Here, in the vehicle body side fitting body 3A, when the outer peripheral surface of the peripheral wall 20 is caught in the peripheral edge portion of the through hole Pwb1 in the vehicle body side panel Pwb, the force from the tubular body 2 pulled by the operator is received. The connecting wall 10 is elastically deformed toward the outer wall surface 11 (FIG. 8). Then, in the vehicle body side fitting body 3A, the peripheral wall 20 and the first fitting wall 30 are pulled by the elastic deformation of the connecting wall 10, so that the outer peripheral surface of the peripheral wall 20 is the through hole Pwb1 in the vehicle body side panel Pwb. The peripheral wall 20 and the first fitting wall 30 are elastically deformed toward the internal space 3a while being dragged to the peripheral edge of the wall (FIG. 8). In the vehicle body side fitting body 3A, the joint portion 70 between the peripheral wall 20 and the first fitting wall 30 gets over the peripheral edge portion of the through hole Pwb1 in the vehicle body side panel Pwb as the elastic deformation thereof (FIG. 9). In the vehicle body side fitting body 3A, the joint portion 70 passes through the through hole Pwb1 in this way, so that the peripheral edge portion of the through hole Pwb1 in the vehicle body side panel Pwb is fitted into the fitting groove 60.

As described above, the vehicle body side fitting body 3A is formed so that the peripheral wall 20 and the first fitting wall 30 can pass through the through hole Pwb1 by elastically deforming at least the peripheral wall 20 and the first fitting wall 30. To. Therefore, the vehicle body side fitting body 3A enables elastic deformation of the peripheral wall 20 and the first fitting wall 30 toward the internal space 3a inside the peripheral wall 20 and the inner peripheral surface of the first fitting wall 30. It has a cavity 3d (FIGS. 5 and 6). The cavity 3d is formed as a part of the internal space 3a.

The cavity 3d is formed in a shape and size that allows the peripheral wall 20 and the first fitting wall 30 to undergo elastic deformation (desired elastic deformation) that can pass through the through hole Pwb1. The hollow portion 3d may be formed on the entire surface of the peripheral wall 20 and the first fitting wall 30 in the circumferential direction, and the peripheral wall 20 and the first fitting wall 30 may be formed in a range where desired elastic deformation is possible. It may be partially formed in the circumferential direction. In this example, since the protrusion 80 is provided in the internal space 3a as described later, the cavity 3d is formed in a place other than the protrusion 80 (FIG. 5). Specifically, it is a cavity inside the inner peripheral surface of the peripheral wall 20 and the first fitting wall 30 and at a place excluding both ends in the longitudinal direction in the circumferential direction of the peripheral wall 20 and the first fitting wall 30. Part 3d is formed.

The peripheral wall 20 is formed so that the wall thickness becomes thinner toward the joint portion 70 with the first fitting wall 30 so that the elastic deformation necessary for passing through such a through hole Pwb1 can be performed. (FIGS. 6 and 7). As a result, in the vehicle body side fitting body 3A, when the tubular body 2 is pulled by the operator, the peripheral wall 20 is likely to be elastically deformed toward the internal space 3a side. The first fitting wall 30 is also easily elastically deformed toward the internal space 3a. That is, in the vehicle body side fitting body 3A, even if the pulling force of the tubular body 2 is small, the peripheral wall 20 and the first fitting wall 30 can be passed through the through hole Pwb1 while being elastically deformed toward the internal space 3a side. .. Therefore, in the grommet 1 and the wire harness WH of the present embodiment, the vehicle body side fitting body 3A can be fitted into the peripheral edge portion of the through hole Pwb1 in the vehicle body side panel Pwb with a low insertion force.

Here, it is desirable that the peripheral wall 20 and the first fitting wall 30 are formed so that the wall thickness is the thinnest at the joint portion 70 between them (FIGS. 6 and 7). As a result, in the vehicle body side fitting 3A, the joint portion 70 is easily bent, and the joint portion 70 is also easily elastically deformed. Therefore, in the grommet 1 and the wire harness WH of the present embodiment, the vehicle body side fitting body 3A can be fitted into the peripheral edge portion of the through hole Pwb1 in the vehicle body side panel Pwb with a lower insertion force.

Further, in this example, since the vehicle body side fitting body 3A has an oval tubular shape (specifically, a long cylindrical shape), and as will be described later, at both ends in the longitudinal direction on the inner peripheral surface of the peripheral wall 20. Since the protrusions 80 are connected, elastic deformation of the peripheral wall 20 and the first fitting wall 30 toward the internal space 3a side is less likely to occur on the longitudinal direction side than on the lateral side. Therefore, on the inner wall surface 12 of the connection wall 10 of the present embodiment, between one end in the longitudinal direction and the wiring path 3c of the harness body We, and between the other end in the longitudinal direction and the wiring path 3c of the harness body We. Is formed with a notch 12a extending in the lateral direction (FIGS. 5 and 7). The notch 12a is for promoting elastic deformation or tilting operation on both ends of the notch 12a in the longitudinal direction of the connecting wall 10.

The notch 12a of this example is formed linearly along the lateral direction of the connecting wall 10 (FIG. 5). Here, the cross section orthogonal to the extending direction is formed as a notch of a rectangular prism. However, the notch 12a may be formed in a triangular prism (in other words, a wedge shape) having a triangular cross section orthogonal to the extending direction.

In the vehicle body side fitting body 3A, as compared with the case where such a notch 12a is not provided, when the tubular body 2 is pulled by the operator, the respective notches 12a make the connecting wall 10 of the connecting wall 10. Both ends in the longitudinal direction fall toward the internal space 3a (FIG. 10). Therefore, in the vehicle body side fitting body 3A, both ends in the longitudinal direction of the peripheral wall 20 and the first fitting wall 30 are compared with the case where the respective notches 12a are not provided due to the inclination of the connecting wall 10. Collapses toward the internal space 3a. Therefore, in the vehicle body side fitting body 3A, on the lateral side, the peripheral wall 20 and the first fitting wall 30 are made into the through hole Pwb1 by elastic deformation of the peripheral wall 20 and the first fitting wall 30 toward the internal space 3a side. Can be passed through. On the other hand, on the longitudinal side, the peripheral wall 20 and the first fitting wall 30 are elastically deformed toward the internal space 3a side and the peripheral wall 20 and the first fitting wall 30 are tilted toward the internal space 3a side due to the notch 12a. By the operation, the peripheral wall 20 and the first fitting wall 30 can be passed through the through hole Pwb1. Therefore, in the grommet 1 and the wire harness WH of the present embodiment, the vehicle body side fitting body 3A can be fitted into the peripheral edge portion of the through hole Pwb1 in the vehicle body side panel Pwb with a low insertion force in the circumferential direction.

Here, it is desirable that both ends of the notch 12a in the extending direction extend to the inner peripheral surface of the peripheral wall (FIG. 5). As a result, in the vehicle body side fitting body 3A, the entire both end sides of the notch 12a in the longitudinal direction of the connecting wall 10 can be tilted toward the internal space 3a side by the respective notches 12a, so that the peripheral wall 20 and the peripheral wall 20 can be tilted. Both ends of the first fitting wall 30 in the longitudinal direction are likely to fall toward the internal space 3a.

Further, one notch 12a is provided between one end of the connection wall 10 in the longitudinal direction and one harness holding portion 4 (FIGS. 5 and 7). The other notch 12a is provided between the other end of the connection wall 10 in the longitudinal direction and the other harness holding portion 4 (FIGS. 5 and 7). In other words, the harness holding portion 4 is provided between one notch 12a in the connection wall 10 and the wiring path 3c of the harness body We, and the other notch 12a in the connection wall 10 and the wiring path of the harness body We. Each is provided between 3c and 3c.

The notch 12a is connected to the root of the connecting wall 10 on the inner wall surface 12 side of the harness holding portion 4 (FIG. 7). The notch 12a of this example is connected to the root of the connecting wall 10 on the inner wall surface 12 side of the harness holding portion 4 along the tubular axis direction. That is, in this example, a part of one side wall of the notch 12a on the harness holding part 4 side and a part of the outer peripheral surface of the harness holding part 4 are connected along the tubular axis direction. Here, the central portion of one side wall of the notch 12a and the central portion of the outer peripheral surface of the harness holding portion 4 are connected along the tubular axis direction. As a result, in the vehicle body side fitting body 3A, the amount of movement of the end portion of the connecting wall 10 tilted by the notch 12a on the longitudinal direction side is maximized, so that both ends of the peripheral wall 20 and the first fitting wall 30 in the longitudinal direction are maximized. It can be elastically deformed most toward the internal space 3a side. Therefore, in the grommet 1 and the wire harness WH of the present embodiment, the insertion force of the vehicle body side fitting body 3A can be further reduced.

As described above, the vehicle body side fitting body 3A of the present embodiment makes it easy to elastically deform the peripheral wall 20 and the first fitting wall 30 in order to reduce the insertion force into the through hole Pwb1. On the flip side, it can be said that the peripheral wall 20 and the first fitting wall 30 are easily elastically deformed even after the vehicle body side fitting body 3A is fitted into the peripheral edge portion of the through hole Pwb1 in the vehicle body side panel Pwb. ..

Therefore, the vehicle body-side fitting body 3A may bring the inner peripheral surface of the peripheral wall 20 into contact with at least one inner peripheral surface of the first fitting wall 30 and the connecting wall 50 as the joint portion 70 is bent. It is desirable that the peripheral wall 20 is formed so that at least one of the first fitting wall 30 and the connecting wall 50 can be pushed toward the fitting groove 60 (FIG. 11). .. The vehicle body side fitting body 3A is fitted into the peripheral edge portion of the through hole Pwb1 in the vehicle body side panel Pwb, and then, for example, by pushing the tubular body 2 toward the opening 3b side, the first such peripheral wall 20 is used. At least one of the fitting wall 30 and the connecting wall 50 is formed into a shape capable of being pushed toward the fitting groove 60. Therefore, in the vehicle body side fitting body 3A, after being fitted into the peripheral edge portion of the through hole Pwb1 in the vehicle body side panel Pwb, by forming such a shape, the peripheral wall 20 causes the first fitting wall 30 and the peripheral portion to be fitted to the peripheral edge portion. At least one of the connecting walls 50 is pressed against it. In the vehicle body side fitting body 3A, a pressing force from at least one of the first fitting wall 30 and the connecting wall 50 via the peripheral wall 20 to the peripheral edge portion is used as the holding force in the fitted state. Therefore, in the grommet 1 and the wire harness WH of the present embodiment, the insertion force of the vehicle body side fitting body 3A when fitting into the peripheral edge portion of the through hole Pwb1 in the vehicle body side panel Pwb is reduced, and the fitting state is maintained. The holding power can be secured.

Further, the grommet 1 of the present embodiment is a pair of protrusions 80 (FIGS. 2 and 2) in which the grommet 1 of the present embodiment projects from the inner wall surface 12 of the connection wall 10 toward the opening 3b side with the wiring path 3c of the harness body We sandwiched between them. 4. Even if FIG. 5 and FIG. 7) are provided on the vehicle body side fitting body 3A and the pair of protrusions 80 secures the holding force of the fitted state with respect to the peripheral edge portion of the through hole Pwb1 in the vehicle body side panel Pwb. Good. The grommet 1 is integrally formed with the pair of protrusions 80.

The protrusion 80 projects to the opening 3b (FIG. 7). That is, in the protrusion 80, the tip (that is, the free end) in the protrusion direction is provided in the opening 3b. Therefore, this protrusion 80 is the wiring path 3c of the harness body We and the inner peripheral surface from the first fitting wall 30 to the second fitting wall 40 (that is, the first fitting wall 30, the connecting wall 50, and the second fitting wall 30). It is arranged to face each inner peripheral surface of the fitting wall 40). Therefore, the protrusion 80 is arranged to face the first wall surface 81 arranged to face the wiring path 3c of the harness body We and the inner peripheral surface from the first fitting wall 30 to the second fitting wall 40. It has a second wall surface 82 (FIGS. 5 and 7).

The protrusion 80 is tilted toward the fitting groove 60 when the connecting wall 10 is elastically deformed toward the internal space 3a side (that is, the inner wall surface 12 side) (FIG. 12), and the connecting wall 10 is on the opposite side. When it is elastically deformed (that is, the outer wall surface 11 side), it is formed so as to be tilted toward the wiring path 3c side of the harness body We (FIG. 10).

Here, when the protrusion 80 is tilted toward the fitting groove 60 side due to elastic deformation of the connecting wall 10 toward the inner wall surface 12, at least one of the first fitting wall 30 and the connecting wall 50 It is formed so that it can be brought into contact with the inner peripheral surface and at least one of the first fitting wall 30 and the connecting wall 50 can be pushed toward the fitting groove 60. (Fig. 12). In the vehicle body side fitting 3A, for example, when the shape shown in FIG. 11 on the lateral side is obtained, the connecting wall 10 is elastically deformed toward the inner wall surface 12, and the protrusion 80 is fitted accordingly. The shape is tilted toward the joint groove 60 side. In the protrusion 80, when tilted toward the fitting groove 60 side, the second wall surface 82 is brought into contact with at least one inner peripheral surface of the first fitting wall 30 and the connecting wall 50, whereby the protrusion 80 is brought into contact with the inner peripheral surface of at least one of the first fitting wall 30 and the connecting wall 50. , At least one of the first fitting wall 30 and the connecting wall 50 is pushed toward the fitting groove 60. Therefore, in the vehicle body side fitting body 3A, after being fitted into the peripheral edge portion of the through hole Pwb1 in the vehicle body side panel Pwb, by forming such a shape, the first fitting wall 30 and the peripheral portion are formed on the peripheral edge portion by the protrusion 80. At least one of the connecting walls 50 is pressed against it. In the vehicle body side fitting body 3A, a pressing force from at least one of the first fitting wall 30 and the connecting wall 50 via the protrusion 80 to the peripheral edge portion is used as the holding force in the fitted state. Therefore, in the grommet 1 and the wire harness WH of the present embodiment, after the vehicle body side fitting body 3A is fitted into the peripheral edge portion of the through hole Pwb1 in the vehicle body side panel Pwb, the vehicle body side fitting body 3A is fitted to the peripheral edge portion. It is possible to secure the holding power later.

On the longitudinal side of the vehicle body side fitting 3A, the respective protrusions 80 are locked to at least one inner peripheral surface of the first fitting wall 30 and the connecting wall 50, so that from the lateral side. However, the amount of elastic deformation of the connecting wall 10 toward the inner wall surface 12 is small.

Further, the vehicle body side fitting body 3A is formed by narrowing the distance between the protrusion 80 and at least one of the first fitting wall 30 and the connecting wall 50 in the shape when no load is applied. When the protrusion 80 is tilted toward the fitting groove 60, the pushing force of the protrusion 80 toward the fitting groove 60 side with respect to at least one of the first fitting wall 30 and the connecting wall 50 can be increased. That is, in the vehicle body side fitting body 3A, the vehicle body side panel is formed in advance so that the distance between the protrusion 80 and at least one of the first fitting wall 30 and the connecting wall 50 is narrowed. After being fitted into the peripheral edge of the through hole Pwb1 in Pwb, the pressing force from at least one of the first fitting wall 30 and the connecting wall 50 via the protrusion 80 to the peripheral edge can be increased. Therefore, in the grommet 1 and the wire harness WH of the present embodiment, after the vehicle body side fitting body 3A is fitted into the peripheral edge portion of the through hole Pwb1 in the vehicle body side panel Pwb, the vehicle body side fitting body 3A is fitted to the peripheral edge portion. It is also possible to increase the later holding power.

Further, when the protrusion 80 is tilted toward the wiring path 3c side of the harness body We due to elastic deformation of the connection wall 10 toward the outer wall surface 11, the internal space 3a in the peripheral wall 20 and the first fitting wall 30 It is formed so as not to hinder the elastic deformation to the side (FIGS. 10 and 13). That is, this protrusion 80 has an internal space 3a in the peripheral wall 20 and the first fitting wall 30 when the tubular body 2 is pulled so as to fit the vehicle body side fitting body 3A into the peripheral edge portion of the through hole Pwb1 in the vehicle body side panel Pwb. It is formed so that the peripheral wall 20 and the first fitting wall 30 can be passed through the through hole Pwb1 without disturbing the elastic deformation to the side. Therefore, in the grommet 1 and the wire harness WH of the present embodiment, even if the protrusion 80 is provided on the vehicle body side fitting 3A, the increase in the insertion force when the vehicle body side fitting 3A is assembled to the vehicle body side panel Pwb is suppressed. be able to. As described above, the grommet 1 and the wire harness WH of the present embodiment suppress the increase in the insertion force when assembling the vehicle body side fitting body 3A to the vehicle body side panel Pwb while suppressing the holding force of the vehicle body side fitting body 3A after fitting. Can be secured.

For example, the protrusion 80 has a shape that does not intersect the wiring path 3c of the harness body We when it is tilted toward the wiring path 3c of the harness body We due to elastic deformation of the connecting wall 10 toward the outer wall surface 11. Formed as a thing. Specifically, when the protrusion 80 is tilted toward the wiring path 3c side of the harness body We due to elastic deformation of the connection wall 10 toward the outer wall surface 11, the protrusion 80 is formed on the outer peripheral surface of the harness holding portion 4 or the harness body We. It is formed as a shape that does not come into contact with each other. As a result, in the vehicle body side fitting body 3A, even if the protrusion 80 is provided, the peripheral wall 20 and the first fitting wall 30 can be elastically deformed toward the internal space 3a side, so that the insertion force into the through hole Pwb1 can be exerted. The increase is suppressed.

Further, when the vehicle body side fitting body 3A is tilted toward the wiring path 3c side of the harness body We due to elastic deformation of the connection wall 10 toward the outer wall surface 11, the protrusion 80 is formed on the outer peripheral surface of the harness holding portion 4. Alternatively, even if it comes into contact with the harness body We, it may be formed so as not to hinder the elastic deformation of the peripheral wall 20 and the first fitting wall 30 toward the internal space 3a. For example, in the vehicle body side fitting body 3A shown here, the harness holding portion 4 is elastically deformed while the harness body Wee is elastically deformed by the tubular body 2 being further pulled after the tilted protrusion 80 comes into contact with the outer peripheral surface. At the same time, it is formed so as to be once dragged into the cylinder of the cylinder 2 and separated from the protrusion 80 (FIG. 13). As a result, in the vehicle body side fitting body 3A, even if the protrusion 80 is provided, the peripheral wall 20 and the first fitting wall 30 can be elastically deformed toward the internal space 3a side, so that the insertion force into the through hole Pwb1 can be exerted. The increase is suppressed. The harness holding portion 4 shown here is stored due to elastic deformation by releasing a tensile force with respect to the tubular body 2 after the peripheral edge portion of the through hole Pwb1 in the vehicle body side panel Pwb is fitted into the fitting groove 60. It is formed so as to pop out from the inside of the cylinder 2 while returning to the original shape by the elastic force.

Specifically, the projection 80 of this example has a fixed end extending from the inner wall surface 12 of the connecting wall 10 to the inner peripheral surface of the peripheral wall 20 (FIG. 7). Therefore, in the vehicle body side fitting 3A of this example, the protrusion 80 can be tilted in conjunction with not only the elastic deformation of the connecting wall 10 but also the elastic deformation of the peripheral wall 20 (FIGS. 10, 12, and FIG. 13). In the vehicle body side fitting 3A of this example, if the viewpoint is changed, the peripheral wall 20 can be elastically deformed in conjunction with the tilting of the protrusion 80.

Further, in the vehicle body side fitting body 3A of this example, when the fitting groove 60 is fitted into the peripheral edge portion of the through hole Pwb1 in the vehicle body side panel Pwb, the holding force on the lateral side in the fitted state is obtained. Is secured in the shape shown in FIG. 11 above, and the holding force on the longitudinal side in the fitted state is secured by the protrusion 80 (FIG. 12). Therefore, the protrusion 80 of this example is between one end of the inner wall surface 12 of the connecting wall 10 in the longitudinal direction and the wiring path 3c of the harness body We, and the other end of the inner wall surface 12 of the connecting wall 10 in the longitudinal direction and the harness body. Each of them protrudes from the route 3c of We (FIG. 7).

One of the protrusions 80 of this example is arranged to face the outer peripheral surface of one harness holding portion 4 and one end in the longitudinal direction on the inner peripheral surface from the first fitting wall 30 to the second fitting wall 40 (FIG. 7). ). In the one protrusion 80, the first wall surface 81 is arranged to face the outer peripheral surface of one harness holding portion 4, and the second wall surface 82 is the inner peripheral surface from the first fitting wall 30 to the second fitting wall 40. It is arranged to face one end in the longitudinal direction of the above. Further, the other protrusion 80 of this example is arranged to face the outer peripheral surface of the other harness holding portion 4 and one end in the longitudinal direction on the inner peripheral surface from the first fitting wall 30 to the second fitting wall 40. (Fig. 7). In the other protrusion 80, the first wall surface 81 is arranged to face the outer peripheral surface of the other harness holding portion 4, and the second wall surface 82 is the inner peripheral surface from the first fitting wall 30 to the second fitting wall 40. It is arranged to face the other end in the longitudinal direction of the above.

The first wall surface 81 of each protrusion 80 is arranged to face the outer peripheral surface of the harness holding portion 4, and extends from the inner wall surface 12 of the connection wall 10 to the opening 3b side along the tubular axis direction (). FIG. 7). The first wall surface 81 of this example is formed in a rectangular shape and extends to the opening 3b.

Further, the second wall surface 82 of each protrusion 80 extends from the inner peripheral surface of the peripheral wall 20 toward the opening 3b side and toward the wiring path 3c side of the harness body We, so that the second wall surface 82 extends in the tubular axis direction. (Fig. 7). The second wall surface 82 of the one protrusion 80 extends from the inner peripheral surface of the peripheral wall 20 toward the opening 3b side and toward the outer peripheral surface of the one harness holding portion 4. The second wall surface 82 of the other protrusion 80 extends from the inner peripheral surface of the peripheral wall 20 toward the opening 3b side and toward the outer peripheral surface of the other harness holding portion 4. The second wall surface 82 of this example is formed in a rectangular shape and extends to the opening 3b.

The illustrated protrusion 80 has a first side wall surface 83 and a second side wall surface 84 as a plane orthogonal to the short side direction at one end and the other end in the short side direction (FIG. 5). The illustrated protrusion 80 is formed in a plate shape with the thickness direction between the first side wall surface 83 and the second side wall surface 84 thereof.

Here, on the inner wall surface 12 of the connection wall 10, a pair thereof is provided between one protrusion 80 and the wiring path 3c of the harness body We and between the other protrusion 80 and the wiring path 3c of the harness body We. It is desirable that a notch extending in a direction orthogonal to the facing arrangement direction and the axial direction (axial direction) of the protrusion 80 is formed. The notch is for promoting the tilting operation of the harness main body We on the protrusion 80 toward the wiring path 3c side, and may be different from the notch 12a shown above, and the notch may be different from the notch 12a shown above. It may be the same as the notch 12a. In this example, it is shared with the notch 12a shown above.

The notch 12a is connected to the root of the connecting wall 10 on the inner wall surface 12 side of the protrusion 80 (FIG. 7). The notch 12a of this example is connected to the root of the first wall surface 81 of the protrusion 80 on the inner wall surface 12 side of the connecting wall 10 along the tubular axis direction. That is, in this example, a part of the other side wall on the protrusion 80 side in the notch 12a and a part of the first wall surface 81 of the protrusion 80 are connected along the tubular axis direction. Here, the central portion of the other side wall in the notch 12a and the first wall surface 81 of the protrusion 80 are connected along the tubular axis direction. Therefore, in the vehicle body side fitting body 3A, the respective protrusions 80 can be easily tilted toward the wiring path 3c side of the harness body We by the respective notches 12a.

As shown above, the grommet 1 and the wire harness WH of the present embodiment can reduce the insertion force of the fitting body 3 when fitting into the peripheral edge portion of the through hole Pw1 in the wall body Pw. Then, the grommet 1 and the wire harness WH secure the holding force of the fitting state of the fitting body 3 with respect to the peripheral edge portion of the through hole Pw1 in the wall body Pw while trying to reduce the insertion force of the fitting body 3. be able to.

1 Grommet 2 Cylinder 3 Fitting body 3A Body side fitting 3a Internal space 3b Opening 3c Harness body routing route 4 Harness holding part 10 Connection wall 11 Outer wall surface 12 Inner wall surface 12a Notch 20 Peripheral wall 30 First fitting wall 40 Second fitting wall 50 Connecting wall 60 Fitting groove Pw wall body Pw1 through hole Pwb Body side panel Pwb1 through hole We harness body WH wire harness

Claims (5)

A cylinder having one electric wire or having a plurality of electric wires bundled and being inserted into an oval-shaped through hole of a wall body, and a cylinder through which a harness body is inserted into the cylinder.
A fitting body formed in a bowl shape having an internal space communicating with the inside of the cylinder of the cylinder, elastically deformable, and fitting the opening side into the peripheral edge of the through hole in the wall body.
Have,
The fitting body includes an oval-shaped connecting wall in which one end of the cylinder is connected from the outer wall surface side and the inside of the cylinder is communicated with the internal space at the one end of the cylinder, and the outside of the connecting wall. The first fitting of the oval tubular peripheral wall protruding from the peripheral edge toward the opening and the outer peripheral edge coaxially coupled to the end of the oval ring on the opening side of the peripheral wall. The abutment wall, the oval annular second fitting wall arranged coaxially with respect to the first fitting wall in the axial direction, and the first fitting wall and the second fitting wall. The peripheral edge portion of the through hole in the wall body is surrounded by an oval annular connecting wall connecting the inner peripheral edges to each other, the first fitting wall, the second fitting wall, and the connecting wall. With an oval annular fitting groove to be fitted,
On the inner wall surface of the connection wall, a cut extending in the lateral direction between one end in the longitudinal direction and the wiring path of the harness body and between the other end in the longitudinal direction and the wiring path of the harness body. A grommet characterized by the formation of notches. The grommet according to claim 1, wherein the notch extends both ends in the extending direction to the inner peripheral surface of the peripheral wall. The fitting body has a harness holding portion that is directed toward the opening side from the inner wall surface of the connecting wall and protrudes from the opening so as to hold the harness body.
The harness holding portion is provided between one of the notches in the connecting wall and the wiring path of the harness body and between the other notch in the connecting wall and the wiring path of the harness body. The grommet according to claim 1 or 2, wherein each is provided. The grommet according to claim 3, wherein the notch is connected to a root of the harness holding portion on the inner wall surface side of the connecting wall. A harness body that has one electric wire or is a bundle of multiple electric wires,
A grommet that protects the harness body that is inserted into the oval-shaped through hole of the wall body,
With
The grommet
A cylinder through which the harness body is inserted into the cylinder, and
A fitting body formed in a bowl shape having an internal space communicating with the inside of the cylinder of the cylinder, elastically deformable, and fitting the opening side into the peripheral edge of the through hole in the wall body.
Have,
The fitting body includes an oval-shaped connecting wall in which one end of the cylinder is connected from the outer wall surface side and the inside of the cylinder is communicated with the internal space at the one end of the cylinder, and the outside of the connecting wall. The first fitting of the oval tubular peripheral wall protruding from the peripheral edge toward the opening and the outer peripheral edge coaxially coupled to the end of the oval ring on the opening side of the peripheral wall. The abutment wall, the oval annular second fitting wall arranged coaxially with respect to the first fitting wall in the axial direction, and the first fitting wall and the second fitting wall. The peripheral edge portion of the through hole in the wall body is surrounded by an oval annular connecting wall connecting the inner peripheral edges to each other, the first fitting wall, the second fitting wall, and the connecting wall. With an oval annular fitting groove to be fitted,
On the inner wall surface of the connection wall, a cut extending in the lateral direction is provided between one end in the longitudinal direction and the wiring path of the harness body and between the other end in the longitudinal direction and the wiring path of the harness body. A wire harness characterized by the formation of notches.

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