spout

Abstract

A base element (10X) provided with a sealing element (71) is provided between connecting surfaces (10a) of a plurality of split base elements (10) which are divided radially about an axis of an insertion path, wherein the base element is formed by combining split tubes (13) of each of the plurality of split base elements and has a tubular body (40) which draws a wiring element (We) of the inner insertion path out of an opening (40a), wherein the tubular body has a curved section (41) and a straight tube section (42) with an opening, the opening being closed by a watertight band (Tp) which is wound between an outer circumferential surface (40b) of the straight tube section and the wiring element drawn out of the opening (40a), and the straight tube section is provided with a band position marking section (44).which designates a permissible range of an end section position of the waterproof tape on the side of the straight pipe section at a point where the sealing element is arranged on the outer circumferential surface and between the inner connecting surfaces.

Description

Field of InterestThe present invention relates to a spout.BackgroundConventionally, in a wire harness, a wiring member such as an electric wire is inserted into a through hole provided in an insertion object (for example, a panel or the like of a vehicle body in a vehicle), and thus the wiring member is guided between one space and the other space separated by the insertion object. For this reason, in order to protect the wiring member from the peripheral edge of the through hole and prevent liquid from entering the gap between the through hole and the wiring member, a grommet closing the gap is attached to the insertion object. For example, the grommet includes a base member made of a hard resin material and an annular waterproof member made of a resin material having flexibility such as rubber inserted into the through hole to bring the waterproof member into close contact with the peripheral edge of the through hole in the insertion object. The wiring member is passed through the inside of the base member between the one space and the other space. The base member is provided with a tubular body through which the wiring member passes. Therefore, in the grommet, by forming the base member into a two-divided structure of a first base member and a second base member, the arrangement of the wiring member to the wiring path inside the base member is facilitated. In this grommet, the sealing member is disposed between the joint surfaces of the first base member and the second base member, thereby preventing liquid from entering from the joint surfaces. For example, Patent Literature 1 below discloses a grommet configured as described above.List of the listed documentsPatent LiteraturePatent Literature 1: JP H08-251 769 ASummaryTechnical TaskIncidentally, in this type of grommet, the waterproof tape is wound around the tubular body and the wiring member over the front and back sides of the opening because the wiring member is pulled out from the opening of the tubular body to close the gap between the opening and the wiring member. However, in this grommet, the first base member and the second base member are already assembled by aligning and connecting the connection surfaces of the first base member and the second base member when the waterproof tape is wound, and therefore it is difficult to confirm the position of the sealing member provided on the connection surface from the appearance, and it is difficult to recognize the position of the end portion of the sealing member between the connection surfaces in the tubular body. In this grommet, by covering up to the position of the end portion of the sealing member with the waterproof tape, appropriate waterproof between the joint surfaces can be achieved. However, it is difficult to determine whether or not the waterproof tape suitable for waterproof is wound because the position of the end portion is difficult to understand. Moreover, for example, in the grommet, the direction of the space-drawn wiring member can be aligned from the through hole of the insertion object based on the bending direction of the tubular body of the space-bent base member. However, in this grommet, the tubular body is bent, so that the position at which the waterproof tape can be wound on the tubular body side is limited to the straight tube portion on the opening side. In addition, in this grommet, a space in which the waterproof tape can be wound is determined depending on the bending position or the shape of the tubular body, such as the bending shape and the circumferential shape of the tubular body in the base member, and thus there is a possibility that the position at which the waterproof tape can be wound into the straight pipe portion is further restricted. Therefore, in this grommet, the range in which the waterproof tape can be wound with respect to the axial length of the tubular body is narrow, and in addition, the position of the end portion of the waterproof tape on the tubular body side needs to be restricted in accordance with the position of the end portion of the sealing member, and there is room for improvement in securing the waterproof.Therefore, it is an object of the present invention to provide a grommet that can ensure water-tightness.Solution of the ProblemThe grommet according to the present invention includes: a base member including a plurality of divided base members made of a synthetic resin material radially divided around an axis of an insertion path, into which a conductive wiring member, which is passed through a through hole of an insertion object between one space and the other space, is inserted into the inner insertion path formed by aligning and connecting connection surfaces of the plurality of divided base members facing each other; an annular grommet main body mounted on the base member and in which one space is disposed at a fastening end position of the insertion object at a portion of the peripheral edge of the through hole; and a sealing member, which is disposed between the facing connection surfaces of the plurality of divided base members and fills a gap between the connection surfaces at a sandwich position, wherein the base member comprises an annular flange disposed in the one clearance at the attachment end position and disposed to coaxially face an annular flat surface on the side of the one clearance in the annular portion of the peripheral edge with a gap therebetween, and a tubular body formed by combining the respective divided pipes of the plurality of divided base members and drawing the wiring member of the inner introduction path from an opening to the one clearance, the grommet main body comprises an annular waterproof member made of an elastically deformable synthetic resin material softer than the base member, coaxially disposed between the flange and the annular flat surface of the peripheral edge at the full attachment position and brought into close contact with the annular flat surface over the entire circumference, the tubular body comprises a bent portion, which protrudes coaxially from the flange and is bent at a tip thereof, and a straight pipe portion provided with the opening, and the opening is closed by a waterproof tape wound between an outer circumferential surface of the straight pipe portion and the wiring member drawn out from the opening, and the straight pipe portion is provided with a tape position designation portion designating an allowable range of an end portion position of the waterproof tape on the straight pipe portion side at a location where the sealing member is disposed on the outer circumferential surface and between the inner connection surfaces.Advantageous Effects of the InventionIn the grommet according to the present invention, by winding the waterproof tape around the straight pipe portion up to the tape position indicating portion, the tape position indicating portion serving as a mark, the gap between the connection surfaces of the straight pipe portion on the distal end side on the opening side can be closed with the waterproof tape. Therefore, the grommet can ensure water-tightness by the waterproof tape.Brief Description of the DrawingsFIG. 1 is a perspective view showing a grommet according to an embodiment before being attached to an insertion object. FIG. 2 is a plan view of the grommet according to the embodiment as viewed from the side. FIG. 3 is a perspective view of the grommet according to the embodiment, viewed from another angle. FIG. 4 is an exploded perspective view showing the grommet of the embodiment. FIG. 5 is an exploded perspective view of a divided base member and a seal member of the embodiment. FIG. 6 is a perspective view for describing winding of the waterproof tape. FIG. 7 is a plan view for describing winding of the waterproof tape. FIG. 8 is a plan view for describing a definition of a first end portion of a tape position designation portion.DESCRIPTION OF EMBODIMENTSHereinafter, embodiments of a grommet according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited by the embodiment.[Embodiment]An embodiment of a spout according to the present invention will be described with reference to Figs. 1, 2, 3, 4, 5, 6, 7 to 8.Reference numeral 1 in FIGS. 1, 2, 3 to 4 denotes a grommet according to the present embodiment. The grommet 1 protects a conductive wiring member We passing through a through hole 502 of an insertion object 501 between one space S 1 and the other space S 2 from a peripheral edge portion 503 of the through hole 502 in the insertion object 501, and prevents liquid (water or the like) from entering the gap between the annular peripheral edge portion 503 and the wiring member We (FIG. 1 ). Therefore, the grommet 1 is attached to the peripheral edge portion 503 of the through hole 502 of the insertion object 501 after the wiring member We is inserted.Here, the wiring member We is, for example, an electric wire (electric wire as a communication wire, electric wire as a power supply wire, and the like). Moreover, the insertion object 501 is a member for inserting the wiring member We, and denotes, for example, a wall body such as a panel of a vehicle body in a vehicle. The wiring member We is guided between one space S 1 and the other space S 2 separated by the insertion object 501 by being inserted into the through hole 502 of the insertion object 501. For example, the wiring member We is responsible for communication between devices in one space S 1 and the other space S 2, or is responsible for supplying power from a power source of the other space S 2 to an electric device in the one space S 1.The peripheral edge portion 503 of the through hole 502 of the insertion object 501 includes an annular flat plate portion (hereinafter referred to as an "annular flat plate portion") 504, and an annular protrusion portion (hereinafter referred to as an "annular protrusion portion") 505 protruding toward the other space S 2 (FIG. 1 ) from an end portion of an inner peripheral edge of the annular flat plate portion 504 (inner peripheral edge portion 504 a). The grommet 1 is attached to the annular flat plate portion 504 and the annular protrusion portion 505 at the peripheral edge portion 503. For example, the insertion object 501 is formed by press molding, and the annular flat portion 504 and the through hole 502 are formed at this time. In the insertion object 501, the annular protrusion portion 505 is formed by deburring the peripheral edge of the through hole 502. Since the through hole 502 is circular, the annular flat plate portion 504 and the annular protrusion portion 505 are each formed annularly.The grommet 1 includes a base member 10X through which the wiring member We is inserted into the inner insertion path (FIGS. 1, 2, 3, 4, 5, 6, 7 to 8 ). The base member 10X includes a plurality of divided base members divided radially around the axis of the introduction path, and is formed by assembling the plurality of divided base members. In the base member 10X, an insertion path is formed on the inner side by aligning and connecting the connection surfaces of the plurality of divided base members facing each other. The plurality of divided base members may be members having different shapes or may be the same members having the same shape. In the present embodiment, the base member 10X is formed by two divided base members: a first divided base member and a second divided base member. Here, the same members (divided base members 10 and 10) having the same shape are used for the two divided base members (FIGS. 1, 2, 3, 4, 5, 6, 7 to 8).The base member 10X includes an annular flange 20, a cylindrical body 30, and a tubular body 40 that are coaxially disposed, and the wiring member We is inserted into these members (FIGS. 1, 2, 3, 4, 5, 6, 7 to 8 ). Here, on the same axis, the cylindrical body 30 protrudes from the flange 20 toward one side, and the tubular body 40 protrudes from the flange 20 toward the other side.In the base member 10X illustrated here, as will be described later, the annular flange 20, the cylindrical body 30, and the tubular body 40 are coaxially formed by the divided base members 10 and 10 being joined together. Therefore, between the two divided base members 10 and 10, a holding mechanism (hereinafter referred to as a "base holding mechanism") 50 is provided to hold the two divided base members 10 and 10 adjacent to each other in an assembled state around the axis of the insertion path (FIGS. 1, 2 to 3 ).In addition, the grommet 1 includes an annular grommet main body 60 mounted to the base member 10X (divided base members 10 and 10 joined together) (FIGS. 1, 2, 3 to 4, and 6, 7 to 8). The spout main body 60 is disposed in the one clearance S 1 at the attachment end position of the spout 1 at the peripheral edge portion 503 to prevent liquid (water or the like) from entering the other clearance S 2 from the one clearance S 1 through the through hole 502. In the following description, when simply referred to as "attachment end position", the position indicates the attachment end position of the grommet 1 with respect to the peripheral edge portion 503.The base member 10X (divided base members 10 and 10) is formed of an insulating hard resin material (hereinafter referred to as "hard resin"). Here, for example, the base member 10X (divided base members 10 and 10) is formed of a hard resin such as plastic.The two divided base members 10 and 10 are assembled by aligning and connecting one of their joint surfaces 10 a(FIGS. 4 and 5 ). The two divided base members 10 and 10 accommodate the wiring member We in the assembled state and insert the wiring member We into the inner insertion path. Here, the annular flange 20, the cylindrical cylindrical body 30, and the tubular tubular body 40 are formed by joining the two divided base members 10 and 10.The flange 20 is disposed in the one space S 1 at the attachment end position, and is disposed to face an annular flat surface 503 a(FIG. 1 ) on the one space S 1 side in the peripheral edge portion 503 coaxially with a gap. The annular flat surface 503 ais provided on the annular flat plate portion 504. The annular planar surface 503 aillustrated here is the annular planar surface itself on the one space S 1 side of the annular planar plate portion 504. The flange 20 is disposed such that an annular outer peripheral edge portion (hereinafter referred to as a "flange outer peripheral edge portion") 20 ain the attachment end position abuts the annular planar surface 503 acoaxially with a gap in the axial direction of the through hole 502. Then, the flange 20 has the wiring member We inserted into an annular inner peripheral edge portion (hereinafter referred to as a "flange inner peripheral edge portion") 20 b.The flange 20 is plate-shaped. Therefore, an annular wall surface (hereinafter referred to as "flange surface") 20 cis provided on the flange outer peripheral edge portion 20 aside of the flange 20 to be disposed to face the annular planar surface 503 acoaxially with the annular planar surface in the attachment end position with a gap therebetween (FIG. 4 ). Here, the flange 20 is formed annularly.The flange 20 is formed by combining divided flanges 11 of each of the plurality of divided base members 10 (FIGS. 1, 2, 3, 4, 5, 6, 7 to 8). Here, a flange 20 is formed from each of the divided flanges 11 by aligning and connecting the joint surfaces 10 aof the two divided base members 10 and 10. The split flange 11 shown here is obtained by dividing the flange 20 into two halves along the central axis and is bent semicircularly.The cylindrical body 30 coaxially protrudes from the flange 20 toward the other clearance S 2 and is inserted into the through hole 502 at the attachment end position. That is, in the cylindrical body 30, the distal end of the tip protruding from the flange 20 is located in the other clearance S 2. The cylindrical body 30 is cylindrically shaped. The cylindrical body 30 protrudes between the outer peripheral edge portion 20 aand the inner peripheral edge portion 20 bof the flange 20, and the wiring member We is inserted into the cylindrical body (FIG. 4 ). Here, for example, the flange 20 is divided into two parts: the flange outer peripheral edge portion 20 aand the flange inner peripheral edge portion 20 bin the radial direction, and the cylindrical body 30 protrudes from a boundary portion between the flange outer peripheral edge portion 20 aand the flange inner peripheral edge portion 20 b.The cylindrical body 30 is formed by combining divided cylinders 12 of each of the plurality of divided base members 10 (FIGS. 2, 3, 4, 5, 6, 7 to 8 ). Here, the cylindrical body 30 of each of the divided cylinders 12 is formed by aligning and connecting the joint surfaces 10 aof each of the two divided base members 10 and 10. The divided cylinder 12 shown here is obtained by dividing the cylindrical body 30 into two halves along the central axis and is bent semicircularly.The tubular body 40 coaxially protrudes from the flange 20 in the opposite direction to the cylindrical body 30, and the inner introduction path wiring member We is drawn out from an opening 40 a(FIGS. 1, 2 to 3, and 6, 7 to 8) to a clearance S 1. The tubular body 40 is formed in a tubular shape. The tubular body 40 illustrated here protrudes from the flange inner peripheral edge portion 20 b, and the wiring member We is inserted into an insertion path in the tubular body 40 (FIGS. 1 and 3 to 5 ).The tubular body 40 has a bent portion 41 that protrudes coaxially from the flange 20 and is bent at its tip (FIGS. 1, 2, 3, 4, 5, 6, 7 to 8 ). In the tubular body 40, the bent portion 41 may be provided at one location or the bent portion 41 may be provided at a plurality of locations. In addition, the tubular body 40 includes a straight tube portion 42 provided with the opening 40 a(FIGS. 1, 2, 3, 4, 5, 6, 7 to 8 ). The tubular body 40 shown here is bent immediately after coaxially protruding from the flange 20, and an opening 40a is provided in the straight pipe portion 42 at the tip of the bend. That is, the tubular body 40 illustrated here includes a straight pipe portion (hereinafter, referred to as a "root-side straight pipe portion") 43 on the root side that protrudes coaxially from the flange 20, a straight pipe portion (hereinafter, referred to as a "distal-end straight pipe portion") 42 on the distal end side provided with the opening 40 a, and a bent portion 41 disposed between the root-side straight pipe portion 43 and the distal-end straight pipe portion 42 (FIGS. 1, 2, 3, 4, 5, 6, 7 to 8 ).The tubular body 40 is formed by combining divided tubes 13 of each of the plurality of divided base members 10 (FIGS. 1, 2, 3, 4, 5, 6, 7 to 8). Here, the tubular body 40 is formed from each of the divided tubes 13 by aligning and joining the respective joint surfaces 10 aof the two divided base members 10 and 10. The divided tube 13 shown here is obtained by dividing the tubular body 40 into two halves along the central axis and is bent semicircularly.As described above, the divided base member 10 has high hardness, so that the main body part (divided flange 11, divided cylinder 12, divided tube 13) is hardly elastically deformed. For this reason, for example, in the divided base member 10, a fine gap may be formed between the connection surfaces 10 aof the mating divided base member 10 due to the surface roughness or the like of the connection surface 10 a. Therefore, the grommet 1 of the present embodiment includes a sealing member 71 that is disposed between the facing joint surfaces 10 aof the plurality of divided base members 10 and fills the gap between the joint surfaces 10 aat the sandwich position (FIGS. 4 and 5 ).The sealing member 71 is made of a synthetic resin material (hereinafter referred to as "soft resin") softer than the hard resin of the divided base member 10 and elastically deformable, and is provided on at least one of the facing joint surfaces 10 a. The sealing member 71 is formed of, for example, a synthetic resin material such as an elastomer. The sealing member 71 is provided, for example, over the respective joint surfaces 10 aof the divided flange 11, the divided cylinder 12, and the divided pipe 13. In the divided base member 10 illustrated here, at two positions from the divided flange 11 to the divided tube 13, groove portions 10 bare formed on the joint surfaces 10 a, and the sealing member 71 is fitted into the respective groove portions 10 b(FIG. 5 ). The seal member 71 protrudes from the groove portion 10 b. For example, the sealing member 71 is manufactured by two-color injection molding with the divided base member 10, or is manufactured with respect to the divided base member 10 accommodated in a mold by insert molding, and is integrally molded with respect to the divided base member 10. Further, the seal member 71 may be formed as a part different from the divided base member 10 and attached to the groove portion 10 bof the divided base member 10 with an adhesive or the like. In the base member 10X, by joining the two divided base members 10 and 10, the seal member 71 protruding from the groove portion 10 bof the respective joint surface 10 aof one divided base member 10 is brought into close contact with the respective joint surfaces 10 aof the other divided base member 10.The base holding mechanism 50 is a holding mechanism for holding the two divided base members 10 and 10 in a state where the respective joint surfaces 10 aare aligned and joined. The base holding mechanism 50 illustrated here is provided at a plurality of locations between the two divided base members 10 and 10. For example, the base holding mechanism 50 illustrated here includes a part 51 protruding from a connection surface 10 aof the two divided base members 10 and 10, and a claw-like first locking member 52 protruding from a wall surface of the part 51 (FIG. 4 ). The base holding mechanism 50 illustrated here includes: an insertion opening 53 provided on the other joint surface 10 ain the two divided base members 10 and 10 and into which the one-piece part 51 and the first locking portion 52 are inserted; and a second locking portion 54 provided on the other of the two divided base members 10 and 10 and arranged to face the first locking portion 52 when the respective joint surfaces 10 athereof are aligned and joined to hold the two divided base members 10 and 10 in a state in which the respective joint surfaces 10 aare aligned and joined (FIG. 4 ). The second locking portion 54 is pressed and bent by the first locking portion 52 inserted through the insertion opening 53, and is flexible such that the first locking portion 52 is separated to eliminate the bending when the connection surfaces 10 aare connected to each other.Each of the two divided base members 10 and 10 illustrated here includes: a set of pieces 51 and the first locking portion 52 at one end in the circumferential direction of the divided cylinder 12; and a set of insertion openings 53 and the second locking portion 54 at the other end in the circumferential direction of the divided cylinder 12. In the two divided base members 10 and 10, the first locking portion 52 is locked at one end of the one divided cylinder 12 and the second locking portion 54 is locked at the other end of the other divided cylinder 12, and the second locking portion 54 at the other end of the one divided cylinder 12 and the first locking portion 52 at one end of the other divided cylinder 12 are locked in a state where the respective joint surfaces 10 aare aligned and joined. That is, in the two divided base members 10 and 10, the base holding mechanisms 50 that connect the respective divided cylinders 12 and hold the divided cylinders 12 in a connected state are provided at two locations. Each of the two divided base members 10 and 10 includes: a set of pieces 51 and the first locking portion 52 at one end in the circumferential direction of the divided tube 13; and a set of insertion openings 53 and the second locking portion 54 at the other end in the circumferential direction of the divided tube 13. In the two divided base members 10 and 10, the first locking portion 52 is locked to one end of the one divided tube 13 and the second locking portion 54 is locked to the other end of the other divided tube 13, and the second locking portion 54 at the other end of the one divided tube 13 and the first locking portion 52 at one end of the other divided tube 13 are locked in a state where the respective joint surfaces 10 aare aligned and joined. That is, in the two divided base members 10 and 10, the base holding mechanisms 50 that connect the respective divided tubes 13 and hold the divided tubes 13 in a connected state are provided at two locations. Here, the base holding mechanisms 50 are provided at two locations in the root-side straight pipe portion 43 of the tubular body 40.In the base member 10X (divided base members 10 and 10 joined to each other), the wiring member We is pulled out from the opening 40 aof the tubular body 40 to one clearance S 1, and the wiring member We is pulled out from the opening of the cylindrical body 30 to the other clearance S 2. In the grommet 1, a gap between the flange 20 of the base member 10X (divided base members 10 and 10 joined together) and the annular planar surface 503 aof the peripheral edge portion 503 is closed by the grommet main body 60 to prevent liquid (water or the like) from entering from one space S 1 into the other space S 2 through the through hole. In the spout 1, the opening 40 aof the tubular body 40 is closed with a waterproof tape Tp to prevent liquid (water or the like) from entering the introduction path inside the tubular body 40 through the opening 40 a(FIGS. 2 and 6 to 8 ).The grommet main body 60 includes: an annular waterproof member 60A made of a soft resin (i.e., an elastically deformable resin material softer than the hard resin of the base member 10X (divided base member 10)); and an annular support member 60B made of a resin material harder than the soft resin of the waterproof member 60A and integrated with the waterproof member 60A (FIGS. 1, 2, 3 to 4, and 6, 7 to 8). The waterproof member 60A is formed using, for example, a resin material such as an elastically deformable elastomer that is softer than the hard resin of the base member 10X (divided base member 10) and the support member 60B. Further, the support member 60B is made of, for example, the same hard resin as the base member 10X (divided base member 10) or a hard resin different from the hard resin having a hardness corresponding to that of the hard resin of the base member 10X (divided base member 10), and is molded using a resin material such as resin.The grommet main body 60 is configured as a molded article in which the waterproof member 60A and the support member 60B are integrally molded. In the grommet main body 60, the waterproof member 60A is integrated with the support member 60B. For example, the waterproof member 60A is manufactured by two-color injection molding with the support member 60B in the mold, or is integrally molded with the support member 60B with respect to the support member 60B accommodated in a mold by insert molding. In addition, the waterproof member 60A may be formed as a part different from the support member 60B and fixed to the support member 60B with an adhesive or the like.The grommet main body 60 is connected to the base member 10X (divided base members 10 and 10 connected to each other) via the support member 60B.The waterproof member 60A is coaxially brought into close contact with the flange 20 at a mounting end position with the base member 10X (divided base members 10 and 10 joined to each other), coaxially disposed between the flange 20 and the annular planar surface 503 aof the circumferential edge portion 503 at a mounting end position, and brought into close contact with the annular planar surface 503 aover an entire circumference. The waterproof member 60A includes, for example, an annular lip that is elastically deformed at the mounting completion position and comes into close contact with the flange surface 20 cof the flange 20 coaxially over the entire circumference (not illustrated). In addition, the waterproof member 60A includes an outer peripheral annular lip 61 and an inner peripheral annular lip 62 that are elastically deformed at the attachment end position and come into close contact with the annular planar surface 503 aof the peripheral edge portion 503 coaxially over the entire periphery (FIGS. 1, 2, 3 to 4 ). Moreover, hereinafter, when simply described as the "mounting end position", the mounting end position of the base member 10X (divided base members 10 and 10 joined together) and the grommet main body 60 will be indicated.The support member 60B is formed as an annular member that is integrated with the outer peripheral edge portion of the waterproof member 60A and coaxially protrudes from the outer peripheral edge portion toward the flange outer peripheral edge portion 20 aof the flange 20 (FIGS. 1, 2, 3 to 4, and 6, 7 to 8 ). The support member 60B is annularly shaped.Between the base member 10X (the divided base members 10 and 10 joined together) and the support member 60B, an engagement mechanism 80 that engages a first engagement portion 81 provided on the base member 10X (divided base members 10 and 10 joined together) with a second engagement portion 82 provided on the support member 60B is provided, thereby holding the base member 10X (divided base members 10 and 10 joined together) and the grommet main body 60 in the mounting end position (FIGS. 1, 2, 3 to 4 ). The first engaging portion 81 is formed as a claw-like protrusion that protrudes outward in the radial direction from the flange outer circumferential edge portion 20 aof the flange 20. In addition, the second engaging portion 82 is a through hole formed in the support member 60B, and the first engaging portion 81 is inserted and locked into the inner surface of the circumferential wall thereof at the mounting end position. A plurality of the engagement mechanisms 80 are provided around the axis of the cylinder axis of the base member 10X (divided base members 10 and 10 connected to each other). Here, four engagement mechanisms 80 are provided at equal intervals around the axis of the cylinder axis of the base member 10X, two of them are provided in the divided flange 11 of one divided base member 10, and the remaining two are provided in the divided flange 11 of the other divided base member 10.The waterproof tape Tp is wound around the axis of an outer circumferential surface 40 bof the tubular body 40 (FIGS. 2 and 6 to 8 ). The opening 40 aof the tubular body 40 is closed by the waterproof tape Tp wound between the outer circumferential surface 40 bof the distal-end straight tube portion 42 and the wiring member W drawn out from the opening 40 a.A wire harness WH of the present embodiment includes a plurality of wiring members We, and all or at least a part of the plurality of wiring members We except for both ends are bundled by an outer member such as a corrugated tube or a resin tape. The plurality of wiring members We illustrated here are covered with a corrugated tube COT (FIGS. 1, 2, 3 to 4, and 6, 7 to 8 ) in the tube of the straight tube portion 42 on the distal end side, and are pulled out from the opening 40 atogether with the corrugated tube COT. Therefore, in this example, the waterproof tape Tp is wound between the outer peripheral surface 40 bof the straight tube portion 42 on the distal end side and an outer peripheral surface COTa of the corrugated tube COT as the outer member drawn out from the opening 40 a(FIGS. 2 and 6 to 8 ).In addition, the straight pipe portion 42 has, at the distal end side, an annular protrusion 42 athat annularly protrudes from the inner surface thereof over a circumferential circumference in the circumferential direction and is fitted into an annular valley portion COT 1 of the corrugated tube COT in the pipe (FIG. 4 ). The straight tube portion 42 on the distal end side has a plurality of annular protrusion portions 42 aco-axially spaced apart from each other, and the corrugated tube COT in the tube is held by the plurality of protrusion portions 42 a.Here, the groove portion 10 bof the joint surface 10 aof the divided tube 13 is formed to the front of the opening 40 ato not penetrate the end surface on the opening 40 aside of the divided tube 13 in terms of water tightness. Therefore, the seal member 71 is guided from the split flange 11 to the split tube 13 along the joint surface 10a, but terminates immediately before the opening 40a. Therefore, in the tubular body 40, a gap is formed between the distal end connection surfaces 10 aof the straight tube portion 42 on the end side on the opening 40 aside. Therefore, the waterproof tape Tp is wound in the straight tube portion 42 on the distal end side up to a location where the sealing member 71 is disposed between the inner surfaces 10 aof the joint. Therefore, the distal-end straight pipe portion 42 is provided with a band position designation portion 44 that designates an allowable range of the position of the end portion of the waterproof band Tp on the distal-end straight pipe portion 42 side at a location where the sealing member 71 is disposed on the outer circumferential surface 40 bbetween the inner connection surfaces 10 a(FIGS. 1, 2, 3, 4, 5, 6, 7 to 8 ). Accordingly, in the grommet 1 according to the present embodiment, by winding the waterproof tape Tp around the distal-end straight pipe portion 42 to the tape position designation portion 44 having the tape position designation portion 44 as a mark, the gap between the connection surfaces 10 aon the distal-end straight pipe portion 42 on the opening 40 aside having the waterproof tape Tp can be closed. Therefore, the grommet 1 of the present embodiment can ensure waterproof by the waterproof tape Tp.The tape position designation portion 44 includes: a first end portion 44 athat indicates an allowable limit position on the bent portion 41 side of the end portion position of the waterproof tape Tp; and a second end portion 44 bthat indicates an allowable limit position on the opening 40 aside of the end portion position of the waterproof tape Tp (FIGS. 1, 2, 3, 4, 5, 6, 7 to 8 ). The tape position designation portion 44 indicates an allowable range (an allowable range of the end portion position on the straight pipe portion 42 side at the distal end side of the waterproof tape Tp) at the first end portion 44 aand the second end portion 44 b. The seal member 71 is passed between the inner joint surfaces 10 abetween the first end portion 44 aand the second end portion 44 band is joined from the bent portion 41 side with respect to the first end portion 44 ato the opening 40 aside with respect to the second end portion 44 b. That is, the second end portion 44 bis provided closer to the bent portion 41 side than the end portion of the seal member 71 on the opening 40 aside. Therefore, in the grommet body 1 of the present embodiment, by winding the waterproof tape Tp around the tape position designation portion 44 of the straight tube portion 42 on the distal end side, the waterproof tape Tp can be wound so as to cover the sealing member 71 (FIGS. 2, 6, and 7 ).Incidentally, in this grommet 1, a space in which the winding operation of the waterproof tape Tp can be performed is determined depending on the shape of the tubular body 40, such as the bending position and the bending shape and the circumferential shape of the tubular body 40 in the base member 10X (the divided base members 10 and 10 joined to each other), and thus the position at which the waterproof tape Tp can be wound into the straight tube portion 42 at the distal end side is limited. In this example, for example, the flange 20 becomes an obstacle to the winding operation of the waterproof tape Tp, and the waterproof tape Tp cannot be wound up to the end portion of the straight tube portion 42 on the distal end side on the bent portion 41 side. Therefore, the first end portion 44 ais provided at a work boundary position at which the winding operation of the waterproof tape Tp can be performed on the bent portion 41 side. In this example, the location closest to the side of the bent portion 41 where the waterproof tape Tp does not collide with the flange 20 when the waterproof tape Tp is wound becomes a work limit position, and the first end portion 44 ais provided at this work limit position (FIG. 8 ). Accordingly, in the grommet 1, winding of the waterproof tape Tp can be facilitated.For example, the first end portion 44 ais formed as an annular protrusion protruding from the outer circumferential surface 40 bof the straight tube portion 42 at the distal end side in the circumferential direction. When the waterproof tape Tp is wound around the first end portion 44 a, the waterproof tape Tp floats from the outer peripheral surface 40 bsurround the first end portion 44 a, and a gap may be formed between the waterproof tape Tp and the outer peripheral surface 40 b. Therefore, in the grommet 1, by winding the waterproof tape Tp with the second end portion 44 b, which is closer to the first end portion 44 a, as an end portion position, the waterproof tape Tp can be brought into close contact with the outer peripheral surface 40 bat the end portion position, and thus the waterproof by the waterproof tape Tp can be secured.Further, for example, the second end portion 44 bis formed as an annular groove portion in which the outer circumferential surface 40 bof the straight tube portion 42 is recessed at the distal end side in the circumferential direction. As a result, the waterproof tape Tp in the grommet 1 is wound therearound from above the second end portion 44 b, but the waterproof tape Tp can also be brought into close contact with the outer peripheral surface 40 bfrom the second end portion 44 b, and thus the waterproof by the waterproof tape Tp can be secured.The grommet 1 configured as described above includes the holding mechanism 90 for holding the base members 10X joined together (divided base members 10 and 10 joined together) and the grommet main body 60 in the peripheral edge 503 of the through hole 502 in the insertion object 501 (FIGS. 2 and 3 ). The holding mechanism 90 illustrated here uses an elastic force accompanying the elastic deformation of the outer peripheral lip 61 and the inner peripheral lip 62 of the waterproof member 60A, and clamps the peripheral edge portion 503 between the outer peripheral lip 61 and the inner peripheral lip 62 and a following locking portion 91 provided on the base member 10X (base member 10), and holds the grommet 1 in the peripheral edge portion 503.The base member 10X includes the locking portion 91 that protrudes from an outer circumferential surface 30 aof the cylindrical body 30 into the other clearance S 2 at the attachment end position and is brought into contact with the circumferential edge portion 503 from the other clearance S 2 side into the other clearance S 2 at the attachment end position (FIGS. 2 and 3 ). The locking portion 91 locks a part of the peripheral edge portion 503 in the circumferential direction. Therefore, the base member 10X includes a plurality of locking portions 91 in the circumferential direction of the cylindrical body 30.In addition, the base member 10X has a self-supporting locking piece portion 92 provided with the locking portion 91 at the free end in the other space S 2 at the attachment end position for each locking portion 91 (FIGS. 2 and 3 ). The lock piece portion 92 protrudes from the fixed end on the outer peripheral surface 30 aside of the cylindrical body 30 to the one side of the clearance S 1 in the other clearance S 2 at the attachment end position as a free end, and protrudes from the outer peripheral surface 30 aof the cylindrical body 30 on the end side (initial shape). The locking piece portion 92 is formed to be flexible and bendable to change the protrusion from the end-side outer peripheral surface 30 a. The locking piece portion 92 moves back and forth in a cut-out portion 30 b, which is formed by cutting out a part of the cylindrical body 30 due to the bending deformation (FIGS. 2 and 3 ). A plurality of combinations of the locking portion 91, the locking piece portion 92, and the cut-out portion 30 bare provided at equal intervals in the circumferential direction with respect to the cylindrical body 30. In the cylindrical body 30 illustrated here, three sets of combinations of the locking portion 91, the locking piece portion 92, and the cut-out portion 30 bare provided at equal intervals in the circumferential direction.When the cylindrical body 30 is inserted into the through hole 502 from the one clearance S 1, the locking piece portion 92 receives a force from the annular protrusion portion 505 of the peripheral edge portion 503, and is bent and deformed from the original shape toward the cutout portion 30 bside, passes through the position of the annular protrusion portion 505, and goes to the distal end (hereinafter, referred to as "locking end portion") 505 a(FIG. 1 ) of the annular protrusion portion 505, and returns to the original shape when the force received from the annular protrusion portion 505 disappears. Therefore, the locking piece portion 92 is disposed at the tip of the locking end portion 505 aof the annular protrusion portion 505 together with the locking portion 91. Meanwhile, in the waterproof member 60A, in a series of movements of the locking portion 91 and the locking piece portion 92, the outer peripheral lip 61 and the inner peripheral lip 62 come into contact with the annular planar surface 503 aof the peripheral edge portion 503, and elastically deform. Therefore, when the force (so-called insertion force) for inserting the grommet 1 into the through hole 502 is decreased, the grommet 1 moves back by a clearance S 1 by the elastic force accompanying the elastic deformation of the outer peripheral lip 61 and the inner peripheral lip 62. Accordingly, the locking portion 91 comes into contact with the locking end portion 505 aof the annular protrusion portion 505, and is locked by the locking end portion 505 a. That is, the annular protrusion portion 505 locks the distal end locking portion 91 (locking end portion 505 a) at the tip protruding from the annular flat plate portion 504. At the annular locking end portion 505 a, the locking portion 91 is locked at any position in the circumferential direction. Therefore, the peripheral edge portion 503 is pinched between the outer peripheral lip 61 and the inner peripheral lip 62 of the waterproof member 60A and the respective locking portions 91 of the base member 10X (divided base members 10 and 10).1 Grommet 10X Base member 10 Divided base member 10 a Verbindungs surface 13 Divided pipe 20 Flange 40 Tubular body 40 aOpen 40 b Außenumfangs surface 41 Bent portion 42 Straight pipe portion 44 Tape position designation portion 44 aFirst end portion 44 bSecond end portion 60 Grommet main body 60A Waterproof member 71 Sealing member 501 Introduction object 502 Through hole 503 Peripheral edge portion 503 a Ringförmige flat surface Tp Waterproof tape S 1 Clearance S 2 Other clearance We Verdrahtungs memberReferences included in the specificationThis list of documents cited by the applicant has been produced in an automated manner and is only included for the better information of the reader. The list is not part of the German patent application or utility model application. The DPMA does not take any adhesion for any faults or omissions.Patent Literature citedJP H08-251 769 A

[0003]

Claims

A grommet comprising: a base member comprising a plurality of divided base members made of a synthetic resin material radially divided around an axis of an insertion path, wherein a conductive wiring member passed through a through hole of an insertion object between one space and the other space is inserted into the inner insertion path formed by aligning and connecting connection surfaces of the plurality of divided base members facing each other; an annular grommet main body mounted on the base member and in which one space is disposed at a fastening end position of the insertion object at a circumferential edge portion of the through hole; and a sealing member disposed between the facing connection surfaces of the plurality of divided base members and filling a gap between the connection surfaces in a sandwich position, wherein the base member comprises an annular flange, which is disposed in the one space at the attachment end position and is disposed so as to coaxially face an annular planar surface on the side of the one space in the annular peripheral edge portion with a gap therebetween, and a tubular body which is formed by combining the respective divided pipes of the plurality of divided base members and pulls the wiring member of the inner introduction path from an opening to the one space, the grommet main body includes an annular waterproof member which is made of an elastically deformable synthetic resin material softer than the base member, is disposed coaxially between the flange and the annular planar surface of the peripheral edge portion at the attachment end position and is brought into close contact with the annular planar surface over the entire circumference, the tubular body includes a bent portion which protrudes coaxially from the flange and is bent at a tip thereof, and a straight pipe portion provided with the opening, the opening being closed by a waterproof tape wound between an outer circumferential surface of the straight pipe portion and the wiring member drawn out from the opening, and the straight pipe portion being provided with a tape position designation portion that designates an allowable range of a position of an end portion of the waterproof tape on the straight pipe portion side at a location where the sealing member is disposed on the outer circumferential surface and between the inner connection surfaces.The grommet according to claim 1, wherein the tape position designation portion includes a first end portion that indicates an allowable limit position on the bent portion side of the end portion position of the waterproof tape and a second end portion that indicates an allowable limit position on the opening side of the end portion position of the waterproof tape, and the allowable range is indicated by the first end portion and the second end portion.The grommet according to claim 1, wherein the band position designation portion includes a first end portion indicating an allowable limit position on the bent portion side of the end portion position of the waterproof band and a second end portion indicating an allowable limit position on the opening side of the end portion position of the waterproof band and indicating the allowable range through the first end portion and the second end portion, the first end portion is an annular protrusion portion protruding from the outer circumferential surface of the straight pipe portion in the circumferential direction, and the second end portion is an annular groove portion in which the outer circumferential surface of the straight pipe portion is recessed in the circumferential direction.The grommet according to claim 2 or 3, wherein the first end portion is provided at a work limit position at which winding operation of the waterproof tape on the bent portion side is possible, and the second end portion is provided closer to the bent portion side than an end portion of the sealing member on the opening side.The grommet according to claim 1, 2 or 3, wherein the plurality of wiring members are covered with an outer member in a pipe of the straight pipe portion and are pulled out from the opening together with the outer member, and the waterproof tape is wound between the outer circumferential surface of the straight pipe portion and an outer circumferential surface of the outer member pulled out from the opening.

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