JP2022190274A - Grommet with protector and wiring harness - Google Patents

Abstract

To provide a grommet with a protector and a wiring harness, which can appropriately connect a grommet and a protector.SOLUTION: In a grommet 1 with a protector, a grommet connection part 12 is provided so as to have an interval along a peripheral direction R against a first penetration hole, and contains a first projection wall 12b projected from an external peripheral surface of the grommet connection part 12. A protector connection part 22 contains a plurality of band insertion parts 22a in which a binding band 30 is inserted into an inner side. In a such a construction, each of a grommet 10 and the protector 20 is inserted into the penetration hole to which the plurality of band insertion parts 22a is corresponded. By engaging a liner part 31 of the binding band 30 to a head part 32 inserted over the plurality of band insertion parts 22a, the head part 32 of the binding band 30 is held while being nipped by each band insertion part 22a and the first projection wall 12b inserted into the first penetration hole in a state where the grommet connection part 12 and the protector connection part 22 are bounded and connected.SELECTED DRAWING: Figure 1

Description

The present invention relates to a grommet with a protector and a wire harness.

Conventionally, as a wiring harness mounted on a vehicle, for example, Patent Document 1 discloses a connector shell provided in a connector housing through which electric wires are inserted, a grommet connected to the connector shell, and a connection portion between the grommet and the connector shell. A wire harness is described that includes a binding band that is bound to the band mounting portion of the wire harness.

WO2016/153045

By the way, in the wire harness described in Patent Literature 1, for example, a protector for protecting electric wires is connected to a grommet, and the connecting portion between the grommet and the protector is bound and connected with a binding band. Furthermore, it is desired to maintain a proper connection state at the connecting portion between the grommet and the protector.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a grommet with a protector and a wire harness that can properly connect the grommet and the protector.

In order to solve the above-described problems and achieve the object, a grommet with a protector according to the present invention is formed in an annular shape and fits into an opening formed in a mounting object to stop water in the opening and distribute water. a grommet through which a cable member is inserted inside; a protector through which the wiring member connected to the grommet and extending from the grommet is inserted inside; a linear portion formed in a linear shape; a binding band for binding the grommet and the protector by locking the linear portion wound around the grommet and the protector with the head, The grommet includes a grommet body portion that fits into the opening to stop water, and a grommet connection portion that is formed integrally with the grommet body portion and has an annular shape. The wiring member is inserted through the inner side of the protector, and the protector includes a protector main body portion that is exterior to the wiring member, and a protector connection portion that is formed integrally and annularly with the protector main body portion, The wiring member is inserted inside the protector main body and the protector connecting portion, and the grommet connecting portion includes a plurality of through holes provided at intervals along the circumferential direction, and the plurality of through holes. a first protruding wall that is spaced apart along the circumferential direction from the first through hole of the through holes and protrudes from the outer peripheral surface of the grommet connecting portion, wherein the protector connecting portion includes: A plurality of band insertion portions provided at intervals along the circumferential direction, each protruding from the outer peripheral surface of the protector connection portion, and through which the binding band is inserted, wherein the grommet and the protector include the A plurality of band insertion portions are inserted into the corresponding through holes, and the linear portion of the binding band is inserted across the plurality of band insertion portions and locked to the head, thereby connecting the grommet. and the protector connection portion are bound and connected, the head portion of the binding band is sandwiched and held by the band insertion portion inserted into the first through hole and the first projecting wall. characterized by

The wire harness according to the present invention includes a conductive wiring member and an annularly formed opening formed in an object to be attached to the opening to stop water, and the wiring member extends inside. A grommet to be inserted, a protector connected to the grommet and through which the wiring member extending from the grommet is inserted, a linear portion formed in a linear shape, and locking the linear portion. a binding band that includes a head and binds the grommet and the protector by locking the linear portion wound around the grommet and the protector with the head, wherein the grommet A grommet body portion that fits into an opening to stop water, and a grommet connection portion that is formed integrally with the grommet body portion and has an annular shape. The wiring member is inserted through the protector, and the protector includes a protector main body portion that is externally attached to the wiring member, and a protector connection portion that is formed integrally and annularly with the protector main body portion, and the protector main body portion and The wiring member is inserted inside the protector connection portion, and the grommet connection portion includes a plurality of through holes provided at intervals along the circumferential direction, and one of the plurality of through holes. a first protruding wall that is spaced from the first through hole along the circumferential direction and protrudes from the outer peripheral surface of the grommet connecting portion, wherein the protector connecting portion extends along the circumferential direction; provided at intervals, each protruding from the outer peripheral surface of the protector connection portion, and including a plurality of band insertion portions through which the binding band is inserted, and the grommet and the protector include the plurality of band insertion portions are inserted into the corresponding through-holes, and the linear portion of the binding band is inserted across the plurality of band insertion portions and locked to the head, thereby connecting the grommet connection portion and the protector connection. The head portion of the binding band is sandwiched and held by the band insertion portion inserted into the first through hole and the first protruding wall in a state where the portion is bound and connected. do.

In the protector-equipped grommet and wire harness according to the present invention, the head portion of the binding band is sandwiched and held between the band insertion portion and the first protruding wall, so that the head portion of the binding band moves along the circumferential direction. As a result, the grommet and the protector can be properly connected.

FIG. 1 is a perspective view showing a configuration example of a wire harness according to an embodiment. FIG. 2 is a perspective view showing a configuration example of a grommet with a protector before binding with a binding band according to the embodiment. FIG. 3 is an exploded perspective view showing a configuration example of the grommet according to the embodiment. FIG. 4 is a perspective view showing a configuration example of the protector according to the embodiment.

A form (embodiment) for carrying out the present invention will be described in detail with reference to the drawings. The present invention is not limited by the contents described in the following embodiments. In addition, the components described below include those that can be easily assumed by those skilled in the art and those that are substantially the same. Furthermore, the configurations described below can be combined as appropriate. In addition, various omissions, substitutions, or changes in configuration can be made without departing from the gist of the present invention.
[Embodiment]

A grommet 1 with a protector and a wire harness WH according to an embodiment will be described with reference to the drawings. A grommet 1 with a protector is incorporated in a wire harness WH routed in a vehicle or the like. Here, the wire harness WH is configured such that a plurality of wiring materials W used for power supply and signal communication are connected to each device by a connector or the like, for example, for connection between each device mounted on a vehicle. It is. The wire harness WH includes a conductive wiring material W, a grommet 10 provided on the wiring material W and through which the wiring material W is inserted, a protector 20 protecting the wiring material W, and the grommet 10 and the protector. A binding band 30 for binding the connecting portion P with the device 20 is provided. The wire harness WH may further include various components such as a corrugated tube, an exterior member such as a resin tape, an electric connection box, and a fixture. The wiring material W is configured by, for example, an electric wire. An electric wire is formed by covering the outside of a conductor portion (core wire) made of a plurality of conductive metal wires with a covering portion having insulating properties. The wire harness WH bundles and aggregates a plurality of wiring materials W, and various devices are electrically connected via connectors or the like provided at the ends of the bundled wiring materials W. FIG.

The grommet 10 will be explained. The grommet 10 is applied to the opening Ma formed in the connector box M to which the grommet 10 is attached when the wiring material W is routed over the inside and outside of the connector box M through the opening Ma. It is what is done. Here, the connector box M aggregates and connects, for example, a plurality of connectors provided at the end of the wiring material W of the wire harness WH and the connectors of each device of the vehicle. The wiring material W of the wire harness WH is inserted through the grommet 10, and the wiring material W passing through the opening Ma is fitted to the opening Ma in a state of being wrapped around the wiring material W. is protected, and the opening Ma is water-stopped (waterproofed). The grommet 10 has functions of waterproofing the opening Ma, as well as dustproofing, soundproofing, and the like. Hereinafter, the configuration of the grommet 10 will be described in detail with reference to each drawing.

In the following description, of the first direction, the second direction, and the third direction that intersect each other for convenience, the first direction will be referred to as the "axial direction X" and the second direction will be referred to as the "width direction Y." and the third direction is called "height direction Z". The axial direction X, the width direction Y and the height direction Z intersect each other and are typically orthogonal to each other. Here, the axial direction X corresponds to the plate thickness direction of the mounting plate of the connector box M provided with the opening Ma, and corresponds to the insertion direction of the wiring member W and the grommet 10 with respect to the opening Ma. In other words, the axial direction X is the direction along which the wiring member W inserted through the grommet 10 extends. The width direction Y and the height direction Z correspond to the extending direction of the mounting plate of the connector box M provided with the opening Ma. Further, the circumferential direction R is the direction along the axis of the annular member formed around the axis along the axial direction X. As shown in FIG. That is, the circumferential direction R is the direction along the outer peripheral surface of the annular member. Here, for convenience of explanation, it is assumed that the wiring member W is linearly wired along the axial direction X, but the grommet 10 is not limited to this, and the connector box M The wiring member W inserted through the grommet 10 may be partially bent or curved so as to deviate from the axial direction X while being attached to the mounting plate. Further, each direction used in the following description will be described as the direction in which the grommet 10 is attached to the mounting plate of the connector box M and fixed to the vehicle, unless otherwise specified.

As shown in FIG. 3 and the like, the grommet 10 of the present embodiment includes a grommet body portion 11, a grommet connecting portion 12, and a connecting portion 13, which are integrally formed as an elastic body.

The grommet main body 11 is fitted to the opening Ma of the mounting plate of the connector box M to stop water, and includes a grommet inner 11a and a water stop portion 11b.

The grommet inner 11a is formed of a hard synthetic resin material having insulating properties, is harder than the water stop portion 11b, and is fitted to the water stop portion 11b with the wiring material W inserted inside. is. The grommet inner 11a is formed in a substantially cylindrical shape penetrating along the axial direction X, and when viewed from the axial direction X, is formed in an elliptical shape in which the length in the width direction Y is longer than the length in the height direction Z. ing. The grommet inner 11a includes a first insertion portion 110a and a second insertion portion 110b inside the grommet inner 11a. The first insertion portion 110a and the second insertion portion 110b are provided side by side along the width direction Y, and the wiring member W is inserted through each. That is, the inner space of the grommet inner 11a is divided into the first insertion portion 110a and the second insertion portion 110b, and the wiring material W is held in a state in which the wiring material W is inserted into each of the divided regions. It is configured to allow The first insertion portion 110a is formed in a tubular shape when viewed from the axial direction X, and includes a first half-cylinder portion formed in a semi-cylinder shape and a second half-cylinder portion formed in a semi-cylinder shape. and the first half-cylinder portion and the second half-cylinder portion are separable. The first insertion portion 110a has the wiring member W arranged inside thereof in a state in which the first half-cylinder portion and the second half-cylinder portion are separated, and the separated first half-cylinder portion and the second half-cylinder portion are separated. are combined to insert the wiring material W inside. The second insertion portion 110b is configured similarly to the first insertion portion 110a. That is, the second insertion portion 110b is formed in a tubular shape when viewed from the axial direction X, and includes a first half-cylinder portion formed in a half-cylinder shape and a second half-cylinder portion formed in a half-cylinder shape. The first semi-cylindrical part and the second semi-cylindrical part are separable. The second insertion portion 110b has the wiring member W arranged inside in a state in which the first half-cylinder portion and the second half-cylinder portion are separated, and the separated first half-cylinder portion and the second half-cylinder portion are combined to insert the wiring material W inside. The grommet inner 11a configured in this manner is mounted inside the water stop portion 11b in a state in which the wiring material W is inserted and held. Thereby, the grommet body portion 11 can properly hold the wiring material W via the grommet inner 11a.

The water stop portion 11b is formed as an elastic body and is formed to have relatively high flexibility compared to the grommet inner 11a. In this example, the water stop portion 11b is formed integrally with a grommet connection portion 12 and a connection portion 13, which will be described later, using a soft material such as synthetic rubber. The water stop portion 11b is formed in a substantially cylindrical shape penetrating along the axial direction X, and when viewed from the axial direction X, is formed in an elliptical shape in which the length in the width direction Y is longer than the length in the height direction Z. It is The water stop portion 11b accommodates the grommet inner 11a in the internal space portion G thereof. The water stop portion 11b serves to stop water from the opening Ma of the connector box M, and includes a plane portion 111b and a groove portion 112b. The planar portion 111b is formed on one side in the height direction Z and linearly formed along the width direction Y on the outer peripheral surface of the water stop portion 11b. The groove portion 112b is formed in a groove shape, is formed along the circumferential direction R on the outer peripheral surface of the water stop portion 11b, and has one end connected to one side of the flat portion 111b and the other end connected to the other side of the flat portion 111b. It is In other words, the planar portion 111b and the groove portion 112b are formed annularly along the circumferential direction R on the outer peripheral surface of the water stop portion 11b. The flat portion 111b and the groove portion 112b are brought into contact with the opening Ma of the connector box M to stop the water in the opening Ma.

The grommet connecting portion 12 is connected to the protector 20, is formed as an elastic body, is formed to have relatively high flexibility as compared with the grommet inner 11a, and is soft as described above. It is made of a material such as synthetic rubber. The grommet connecting portion 12 is provided on one side of the grommet main body portion 11, for example, provided on the opposite side of the grommet main body portion 11 in the axial direction X, and is connected to the grommet main body portion 11 via the connecting portion 13 in this example. provided on the opposite side. The grommet connecting portion 12 is formed integrally with the grommet main body portion 11 in an annular shape. is formed in an elliptical shape with a long length in the width direction Y. The outer peripheral surface 12d of the grommet connecting portion 12 faces along the height direction Z and faces a pair of planar flat portions 120d along the width direction Y, and is formed in a curved shape. It is formed from a pair of curved surface portions 121d. The grommet connecting portion 12 includes a plurality of through holes 12a, a pair of first projecting walls 12b, and a pair of second projecting walls 12c.

The plurality of through-holes 12a are holes penetrating through the body portion of the grommet connecting portion 12, and each of the through-holes 12a has the same shape, and is formed into a shape that allows insertion of a band insertion portion 22a, which will be described later. That is, when viewed from the height direction Z or the width direction Y, the plurality of through holes 12a are formed in the same shape as the outer shape of the band insertion portion 22a. Thereby, the plurality of through holes 12a can suppress rattling of the inserted band insertion portion 22a. A plurality of through holes 12 a are provided at intervals along the circumferential direction R of the grommet connecting portion 12 . In this example, four through holes 12a are formed, one each in the pair of flat surface portions 120d of the grommet connecting portion 12, and one each in the pair of curved surface portions 121d. The through holes 12a formed in the pair of plane portions 120d are formed substantially in the center of the plane portions 120d in the width direction Y and face each other along the height direction Z, and are formed in the pair of curved surface portions 121d. The through holes 12a are opposed to each other along the width direction Y. As shown in FIG.

The pair of first protruding walls 12b are formed in a plate shape so as to protrude from the outer peripheral surface 12d of the grommet connection portion 12 . The pair of first protruding walls 12b is provided along the circumferential direction R with a gap from the first through-hole 120a, which is one through-hole 12a among the plurality of through-holes 12a. In this example, the pair of first protruding walls 12b are provided adjacent to the first through hole 120a formed in one curved surface portion 121d along the circumferential direction R with a gap therebetween. , from the outer peripheral surface 12d. The pair of first protruding walls 12b are formed in plate shapes orthogonal to each other along the height direction Z. As shown in FIG. The distance between the first through hole 120a and the pair of first protruding walls 12b is equal to the length of the head 32 of the binding band 30 described below (the length for holding the head 32 on both sides). . The pair of first protruding walls 12b are provided facing each other along the axial direction X, and one first protruding wall 12b and the other first protruding wall 12b are provided with an interval therebetween. This interval is an interval for holding the head portion 32 of the binding band 30 and for inserting the linear portion 31 of the binding band 30 between the first projecting wall 12b on one side and the first projecting wall 12b on the other side. be.

The pair of second protruding walls 12c is formed in a plate shape protruding from the outer peripheral surface 12d of the grommet connecting portion 12. As shown in FIG. The pair of second protruding walls 12c is provided between the first through hole 120a and the pair of first protruding walls 12b, protrudes from the outer peripheral surface 12d of the grommet connecting portion 12, and extends in the axial direction X of the grommet connecting portion 12. facing along. In this example, a pair of second protruding walls 12c are provided between a first through hole 120a formed in one curved surface portion 121d and a pair of first protruding walls 12b, and are grommet-connected along the width direction Y. It protrudes from the outer peripheral surface 12 d of the portion 12 . The pair of second protruding walls 12c are formed in plate shapes orthogonal to each other along the axial direction X, and are connected to the pair of first protruding walls 12b. For example, one second projecting wall 12c is connected to one first projecting wall 12b, and the other second projecting wall 12c is connected to the other first projecting wall 12b. The pair of second protruding walls 12c and the pair of first protruding walls 12b, which are connected to each other, are L-shaped when viewed from the width direction Y. As shown in FIG. As a result, the grommet connecting portion 12 has a pair of first protruding walls 12b and a pair of second protruding walls 12b, compared to a case where the pair of first protruding walls 12b and the pair of second protruding walls 12c are separated. The strength of 12c can be increased.

The connecting portion 13 connects the grommet main body portion 11 and the grommet connecting portion 12, is formed as an elastic body, and is formed to have relatively high flexibility compared to the grommet inner 11a. is made of a soft material such as synthetic rubber. The connecting portion 13 is formed in an annular shape, for example, in a substantially tubular shape penetrating along the axial direction X, and when viewed from the axial direction X, the length in the width direction Y is longer than the length in the height direction Z. It is formed in a long oval shape. The connecting portion 13 connects the grommet main body portion 11 and the grommet connecting portion 12, and the wiring material W is inserted inside. In the grommet 10 configured as described above, the wiring member W is inserted inside the grommet body portion 11 and the grommet connecting portion 12 via the connecting portion 13 .

Next, protector 20 will be described. The protector 20 protects the wiring material W and regulates the wiring route of the wiring material W. As shown in FIG. The protector 20 includes a protector body portion 21 and a protector connection portion 22, as shown in FIG. 4 and the like, which are made of a hard synthetic resin material having insulating properties.

The protector main body 21 is covered with the wiring material W, and the wiring material W extending from the protector connection part 22 is inserted inside to protect and route the inserted wiring material W. regulate. The protector body portion 21 is formed in a box shape and has a fixing portion 21a. The fixing portion 21a is for fixing the protector 20 to a vehicle panel provided on the vehicle, and has projecting pieces projecting to both sides along the width direction Y, and the projecting pieces are formed with holes. . The fixing portion 21a fixes the protector 20 to the vehicle panel by inserting a bolt through the hole and screwing the fixing portion 21a together with the vehicle panel. The protector main body 21 formed in a box shape sends out the wiring material W inserted from the protector connection part 22 from a sending part (opening part) on the side opposite to the protector connection part 22 .

The protector connection portion 22 is connected to the grommet connection portion 12 of the grommet 10 . The protector connection portion 22 is provided on one side of the protector body portion 21, for example, on the opposite side of the protector body portion 21 from the delivery portion in the axial direction X. As shown in FIG. The protector connection portion 22 is formed integrally with the protector main body portion 21 in an annular shape. is formed in an elliptical shape with a long length in the width direction Y. The outer peripheral surface 22b of the protector connecting portion 22 faces along the height direction Z and faces a pair of planar flat portions 220b along the width direction Y, and is formed into a curved shape. It is formed from a pair of curved surface portions 221b. The protector connection portion 22 includes a plurality of band insertion portions 22a.

The banding band 30 is inserted through the plurality of band insertion portions 22a, which are formed in a U shape (arch shape, gate shape). A plurality of band insertion portions 22 a are provided at intervals along the circumferential direction R, and each project from an outer peripheral surface 22 b of the protector connection portion 22 . In this example, four band insertion portions 22a are formed, one on each of the pair of flat portions 220b of the protector connecting portion 22, and one on each of the pair of curved portions 221b. The band insertion portions 22a formed on the pair of plane portions 220b are formed substantially in the center of the plane portions 220b in the width direction Y, face each other along the height direction Z, and extend to the pair of curved surface portions 221b. The formed band insertion portions 22a face each other along the width direction Y. As shown in FIG. The banding band 30 is inserted through the plurality of band insertion portions 22a in a state in which the plurality of band insertion portions 22a are inserted into the corresponding through holes 12a. In the protector 20 configured as described above, the wiring member W is inserted inside the protector connection portion 22 and the protector body portion 21 . In this example, the protector 20 is composed of the tray 20b and the cover 20a covering the upper part of the tray 20b, and is composed by combining the tray 20b and the cover 20a. may be

Next, the binding band 30 will be described. The binding band 30 binds the connecting portion P between the grommet 10 and the protector 20 . The binding band 30 includes a linear portion 31 and a head portion 32, as shown in FIG.

The linear portion 31 is formed in a linear shape and has a plurality of grooves formed along its extending direction. The head 32 is provided at one end of the linear portion 31, and has an insertion opening into which the linear portion 31 is inserted from the other end of the linear portion 31, and a groove of the linear portion 31 inserted from the insertion opening. and a locking pawl. The binding band 30 has a linear portion 31 inserted over a plurality of band insertion portions 22 a and wound around the grommet connection portion 12 and the protector connection portion 22 . The grommet connecting portion 12 and the protector connecting portion 22 are bound by locking.

Next, a method of assembling the grommet 10 and the protector 20 to form the wire harness 100 will be described. The operator inserts the wiring material W inside the grommet inner 11a, and mounts the grommet inner 11a with the wiring material W inserted inside the water stop portion 11b. Then, the worker connects the protector connection portion 22 and the grommet connection portion 12 while inserting the wiring material W inside the protector 20 . At this time, the operator inserts the plurality of band insertion portions 22a of the protector connection portion 22 into the plurality of through holes 12a of the grommet connection portion 12, respectively. Then, the operator can hold the head portion 32 of the binding band 30 sandwiched between the first protruding wall 12b and the band insertion portion 22a and hold the head portion 32 of the binding band 30 between the pair of second protruding walls 12c. While being sandwiched and held, the linear portion 31 of the binding band 30 is inserted through each of the plurality of band insertion portions 22a, and the inserted linear portion 31 is locked to the head portion 32 to form the grommet connecting portion. 12 and the protector connection portion 22 are bound to form the wire harness 100 .

As described above, the protector-equipped grommet 1 according to the embodiment includes the grommet 10 , the protector 20 , and the binding band 30 . The grommet 10 is formed in an annular shape and fits into an opening Ma formed in the connector box M to stop water from the opening Ma, and the wiring material W is inserted inside. The protector 20 is connected to the grommet 10, and the wiring member W extending from the grommet 10 is inserted inside. The binding band 30 includes a linear portion 31 formed in a linear shape and a head portion 32 for locking the linear portion 31. The linear portion 31 wound around the grommet 10 and the protector 20 is attached to the head portion. The grommet 10 and the protector 20 are bound by locking by 32 . Here, the grommet 10 includes a grommet body portion 11 that fits into the opening Ma to stop water, and a grommet connection portion 12 that is formed integrally with the grommet body portion 11 and annularly. A wiring member W is inserted inside over the connecting portion 12 . The protector 20 includes a protector main body portion 21 that is sheathed by the wiring material W, and a protector connection portion 22 that is formed integrally with the protector main body portion 21 and has an annular shape. The wiring material W is inserted through the inner side of the opening. The grommet connection portion 12 is provided along the circumferential direction R with respect to the plurality of through holes 12a provided at intervals along the circumferential direction R, and the first through hole 120a of the plurality of through holes 12a. and a first protruding wall 12b provided adjacently with a space therebetween and protruding from the outer peripheral surface 12d of the grommet connecting portion 12. As shown in FIG. The protector connection portion 22 includes a plurality of band insertion portions 22a provided at intervals along the circumferential direction R, each protruding from an outer peripheral surface 22b of the protector connection portion 22, and through which the binding band 30 is inserted. In such a configuration, the grommet 10 and the protector 20 have a plurality of band insertion portions 22a inserted into corresponding through holes 12a, and the linear portion 31 of the binding band 30 is inserted across the plurality of band insertion portions 22a. The head portion 32 of the binding band 30 is inserted into the first through hole 120a in a state in which the grommet connection portion 12 and the protector connection portion 22 are bound and connected by being locked to the head portion 32. It is sandwiched and held between the insertion portion 22a and the first projecting wall 12b.

With this configuration, the protector-equipped grommet 1 can firmly connect the protector 20 and the grommet 10 by inserting the plurality of band insertion portions 22a into the plurality of through-holes 12a, respectively. In addition, the grommet 1 with protector holds the head portion 32 of the binding band 30 by sandwiching it between the band insertion portion 22a and the first projecting wall 12b, so that the head portion 32 of the binding band 30 moves along the circumferential direction R. can be suppressed. As a result, the protector-equipped grommet 1 can prevent the head portion 32 of the binding band 30 from moving and coming into contact with surrounding parts, and the movement of the binding band 30 can reduce the friction between the binding band 30 and the grommet connecting portion 12 . can be suppressed, and a decrease in durability can be suppressed. Moreover, the grommet 1 with protector can improve the durability of the grommet 10 by providing the grommet 10 with the first protruding wall 12b as compared with the case where the protector 20 is provided with the first protruding wall 12b. This is because, if the protector 20 were provided with the first projecting wall 12b, it would be necessary to separately provide a through hole in the grommet 10 for inserting the first projecting wall 12b of the protector 20. This is because the durability of the grommet 10 may decrease due to the increase in the number of through-holes. By providing the grommet 10 with the first protruding wall 12b, the grommet 1 with protector can improve workability compared to the case where the protector 20 is provided with the first protruding wall 12b. If the protector 20 were provided with the first projecting wall 12b, it would be necessary to insert the first projecting wall 12b of the protector 20 into the through-hole of the grommet 10. There is a possibility that the workability will be lowered. Since the grommet 1 with protector allows the binding band 30 to be inserted through the plurality of band insertion portions 22a, it is possible to omit the work of fixing the position of the binding band 30 with a tape. As described above, the protector-equipped grommet 1 can properly connect the grommet 10 and the protector 20 .

In the protector-equipped grommet 1 , the grommet connecting portion 12 is provided between the first through hole 120 a and the first projecting wall 12 b , protrudes from the outer peripheral surface 12 d of the grommet connecting portion 12 , and extends along the axis of the grommet connecting portion 12 . A pair of second projecting walls 12c facing each other along the direction X are included. The grommet 10 and the protector 20 have a plurality of band insertion portions 22a inserted into corresponding through holes 12a, and a linear portion 31 of the binding band 30 is inserted across the plurality of band insertion portions 22a and attached to the head portion 32. With the grommet connection portion 12 and the protector connection portion 22 bound by being engaged, the head portion 32 of the binding band 30 is sandwiched and held by the pair of second protruding walls 12c. With this configuration, the protector-equipped grommet 1 can hold the head portion 32 of the binding band 30 by the pair of second protruding walls 12c, so that the binding band 30 is bound to the grommet connecting portion 12 and the protector connecting portion 22. At this time, it is possible to prevent the head portion 32 of the binding band 30 from shifting along the axial direction X, thereby improving the workability of the binding work.

The wire harness WH includes a conductive wiring member W and a grommet 1 with a protector, and has the same effect as the grommet 1 with a protector described above.

In the above description, an example in which the grommet 10 is applied to the opening Ma of the connector box M when the wiring material W is routed over the inside and outside of the connector box M was explained. Not limited. The grommet 10 may be applied, for example, to an opening formed in a mounting panel, which is a metal plate that constitutes a vehicle body or the like.

Although the example in which the grommet connecting portion 12 includes the pair of second protruding walls 12c has been described, the present invention is not limited to this, and the grommet connecting portion 12 may not include the pair of second protruding walls 12c.

The first through hole 120a, in which the pair of first projecting walls 12b and the pair of second projecting walls 12c are spaced apart, has been described as an example formed in one curved surface portion 121d. For example, it may be formed on either one of the pair of planar portions 12d.

In the above description, the shapes of the grommet 10 and the protector 20 are examples, and are not limited to the shapes described above.

1 grommet with protector 10 grommet 11 grommet body 12 grommet connecting portion 12a a plurality of through holes 12d outer peripheral surface 120a first through hole 12b first projecting wall 12c pair of second projecting walls 20 protector 21 protector body 22 protector connecting portion 22a A plurality of band insertion portions 22b, outer peripheral surface 30, binding band 31, linear portion 32, head M, connector box (to be attached)
Ma opening R circumferential direction W wiring material WH wire harness

Claims (3)

a grommet formed in an annular shape, fitted into an opening formed in a mounting target to stop water in the opening, and through which a wiring member is inserted;
a protector connected to the grommet and through which the wiring member extending from the grommet is inserted;
The linear portion includes a linear portion formed in a linear shape and a head for locking the linear portion, and the linear portion wound around the grommet and the protector is locked by the head to lock the linear portion. a binding band that binds the grommet and the protector,
The grommet is
a grommet main body that fits into the opening to stop water;
a grommet connection portion formed integrally and annularly with the grommet body portion, wherein the wiring member is inserted inside the grommet body portion and the grommet connection portion;
The protector is
a protector main body that is exteriorly attached to the wiring material;
a protector connecting portion formed integrally and annularly with the protector main body, wherein the wiring member is inserted inside the protector main body and the protector connecting portion;
The grommet connecting portion is
a plurality of through holes provided at intervals along the circumferential direction;
a first protruding wall that is spaced apart along the circumferential direction from the first through hole of the plurality of through holes and protrudes from the outer peripheral surface of the grommet connecting portion;
The protector connection part
including a plurality of band insertion portions provided at intervals along the circumferential direction, each projecting from the outer peripheral surface of the protector connection portion, and through which the binding band is inserted;
In the grommet and the protector, the plurality of band insertion portions are inserted into the corresponding through holes, and the linear portion of the binding band is inserted across the plurality of band insertion portions to engage with the head. When the grommet connection portion and the protector connection portion are bound and connected by being stopped, the head portion of the binding band moves between the band insertion portion inserted into the first through hole and the first protrusion. A grommet with a protector that is sandwiched and held by a wall. The grommet connection portion is provided between the first through hole and the first protruding wall, protrudes from an outer peripheral surface of the grommet connection portion, and faces a pair of second grommet connection portions along the axial direction of the grommet connection portion. including protruding walls,
In the grommet and the protector, the plurality of band insertion portions are inserted into the corresponding through holes, and the linear portion of the binding band is inserted across the plurality of band insertion portions to engage with the head. The head portion of the binding band is sandwiched and held by the pair of second protruding walls in a state in which the grommet connection portion and the protector connection portion are bound and connected by being stopped. Grommet with protector as described. a conductive wiring material;
a grommet formed in an annular shape, fitted into an opening formed in an object to be attached to stop water in the opening, and through which the wiring member is inserted;
a protector connected to the grommet and through which the wiring member extending from the grommet is inserted;
The linear portion includes a linear portion formed in a linear shape and a head for locking the linear portion, and the linear portion wound around the grommet and the protector is locked by the head to lock the linear portion. a binding band that binds the grommet and the protector,
The grommet is
a grommet main body that fits into the opening to stop water;
a grommet connection portion formed integrally and annularly with the grommet body portion, wherein the wiring member is inserted inside the grommet body portion and the grommet connection portion;
The protector is
a protector main body that is exteriorly attached to the wiring material;
a protector connecting portion formed integrally and annularly with the protector main body, wherein the wiring member is inserted inside the protector main body and the protector connecting portion;
The grommet connecting portion is
a plurality of through holes provided at intervals along the circumferential direction;
a first protruding wall that is spaced apart along the circumferential direction from the first through hole of the plurality of through holes and protrudes from the outer peripheral surface of the grommet connecting portion;
The protector connection part
including a plurality of band insertion portions provided at intervals along the circumferential direction, each projecting from the outer peripheral surface of the protector connection portion, and through which the binding band is inserted;
In the grommet and the protector, the plurality of band insertion portions are inserted into the corresponding through holes, and the linear portion of the binding band is inserted across the plurality of band insertion portions to engage with the head. When the grommet connection portion and the protector connection portion are bound and connected by being stopped, the head portion of the binding band moves between the band insertion portion inserted into the first through hole and the first protrusion. A wire harness characterized by being sandwiched and held by a wall.

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