JP4913488B2 - Grommet - Google Patents

Description

  The present invention relates to a grommet, and more particularly to a grommet that is disposed between a first attachment target portion and a second attachment target portion to cover and protect the wire harness.

  A grommet for a wire harness is used to cover and protect a wire harness disposed between a vehicle body and a door of an automobile, for example.

The grommet is made of a soft material, and a wire harness passes through the grommet. A part of the grommet is fixed to the vehicle body by being clamped with a tape member or a band (for example, a patent) Reference 1).
JP-A-6-253438

  However, when the conventional grommet is used, not only the grommet but also the wire harness itself passing through the grommet is fixed to the vehicle body side, and the path of the wire harness is regulated together with the grommet. For this reason, when the door is repeatedly opened and closed with respect to the vehicle body, a load due to bending is repeatedly applied to the wire harness, which may damage the wire harness.

  Therefore, in order to solve the above-described problems, an object of the present invention is to provide a grommet that can reliably prevent a wire harness from being damaged even if it is repeatedly bent.

In order to solve the above-mentioned problem, the grommet of the present invention is a grommet arranged between the first attachment target part and the second attachment target part for covering and protecting the wire harness,
A first mounting portion that is mounted on the first mounting target portion and passes the wire harness;
A second attachment portion attached to the second attachment target portion and passing the wire harness;
A bendable tube that is provided between the first mounting portion and the second mounting portion and passes the wire harness;
It is arranged between the first mounting part and the second mounting part, is connected to the tube, passes through the wire harness, and is held by at least one of the first mounting target part and the second mounting target part by a clamp member A first holder and a second holder ,
The first mounting portion, the second mounting portion, and the tube are formed of a flexible material,
The first mounting part has an insertion end part for inserting the wire harness and an extension part formed continuously from the insertion end part,
The tube has a first tube and a second tube,
The first holder is connected and fixed between the extension and the first tube;
The second holder is connected and fixed between the first tube and the second tube;
The outer shape of the first holder is approximately matched to the outer shape of the first tube and the outer shape of the extension of the first mounting portion,
Tube portion of the second tube disposed between the second section and the second holder Ri bendable der,
The extension and the first tube are formed to have a predetermined angle through the first holder,
It is hold | maintained by the said 1st holder, the said 2nd holder, the said 1st mounting part, and the said 2nd mounting part .

In the grommet of the present invention, preferably, the extension portion is formed continuously from the insertion end portion so that the guide route of the wire harness at the insertion end portion and the guide route of the wire harness at the extension portion intersect. It is characterized by being.

  The grommet of the present invention is preferably characterized in that the first attachment target part is a fixed part, and the second attachment target part is a movable part movable with respect to the fixed part.

  The grommet of the present invention is preferably characterized in that the first attachment target portion is a vehicle body, and the second attachment target portion is a door that can be opened and closed with respect to the vehicle body.

  The grommet of the present invention is preferably characterized in that a protrusion for fixing the wire harness is formed on the second mounting portion.

  According to the grommet of the present invention, it is possible to reliably prevent the wire harness from being damaged even if it is repeatedly bent.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing a first preferred embodiment of the grommet of the present invention, and FIG. 2 is a perspective view showing an example in which the grommet is mounted.

  The grommet 10 shown in FIG. 1 is disposed between the first attachment target part 101 and the second attachment target part 102 and used to cover and protect the wire harness 200 as in the mounting example illustrated in FIG. It is done. As shown in FIGS. 1 and 2, the grommet 10 includes a first mounting portion 21, a second mounting portion 22, a tube 23, and a holder 30. The holder 30 has a first holder part 31 and a second holder part 32.

  The first mounting portion 21, the second mounting portion 22, and the tube 23 shown in FIG. 1 are made of, for example, rubber that is a flexible material. The 1st holder part 31 and the 2nd holder part 32 can also be called the connection member for connecting the 1st mounting part 21, the 2nd mounting part 22, and the tube 23, for example, are made of plastics. The first holder portion 31 and the second holder portion 32 are made of a hard material as compared with the first mounting portion 21, the second mounting portion 22, and the tube 23.

  In the illustrated embodiment of the present invention, for example, the first attachment target portion 101 in FIG. 2 is a vehicle body, and the second attachment target portion 102 is a vehicle door.

  As shown in FIGS. 1 and 2, the first mounting portion 21 is a hollow member having a space through which the wire harness 200 is passed, and is mounted on the first attachment target portion 101 side shown in FIG. Through.

  The second mounting portion 22 shown in FIGS. 1 and 2 is a hollow member having a space through which the wire harness 200 is passed. The second mounting portion 22 is mounted on the second attachment target portion 102 shown in FIG.

  The tube 23 is a hollow member having a space through which the wire harness 200 passes. The tube 23 is provided between the first mounting portion 21 and the second mounting portion 22 and includes the first tube portion 41 and the second tube portion 42. is doing. In the illustrated example, the outer shape of the first tube portion 41 is larger than that of the second tube portion 42. The first tube portion 41 and the second tube portion 42 of the tube 23 are bendable corrugated tubes.

  The first holder portion 31 shown in FIGS. 1 and 2 is disposed between the first tube portion 41 and the first mounting portion 21 and passes through the wire harness 200, for example, by a clamp member 91 as shown in FIG. It is held and fixed on the first attachment target part 101 side. The outer shape of the first holder portion 31 is matched with or substantially matched with the outer shape of the first tube portion 41 and the outer shape of the first mounting portion 21.

  The first and second mounting portions 21, 22, the tube 23, the first holder portion 31, and the second holder portion 32 of the grommet 10 shown in FIGS. This is shown in FIG. FIG. 3 is a front view of the grommet 10, and FIG. 4 is a plan view of the grommet 10. FIG. 5 is a bottom view of the grommet 10, and FIG. 6 is a rear view of the grommet 10. 7 and 8 are a left side view and a right side view of the grommet 10, respectively.

  Each component of the grommet 10 will be further described with reference to FIGS. 3 to 8 focusing on FIGS. 1 and 2. The first mounting portion 21 has an insertion end portion 70 and an extension portion 71 formed continuously with the insertion end portion 70. An insertion end portion 70 is formed on the first portion 71 </ b> B side of the extension portion 71. The insertion end portion 70 is fitted and attached to the insertion hole 103 of the first attachment target portion 101. The insertion end portion 70 is tapered and has an opening 72 as shown in FIG. The guide route of the wire harness 200 at the insertion end 70 intersects the guide route of the wire harness 200 at the extension portion 71.

  As shown in FIGS. 1 and 2, the second mounting portion 22 includes an insertion end portion 75, an extension portion 76 formed continuously from the insertion end portion 75, and a protrusion 77. The insertion end portion 75 is provided on the first end portion 76 </ b> B side of the extension portion 76.

  As illustrated in FIG. 2, the insertion end portion 75 is attached by being fitted into the insertion hole 104 of the second attachment target portion 102. The insertion end 75 is tapered and has an opening 73 as shown in FIG. The insertion end 75 has a protrusion 77. The protrusion 77 is provided so as to protrude outward from the opening 73. The protrusion 77 is for fixing the wire harness 200 by using a vinyl tape 79. The guide route of the wire harness 200 in the extension portion 76 intersects the guide route of the wire harness 200 in the insertion end portion 75.

  As shown in FIGS. 1 and 2, the first holder portion 31 is connected and fixed between the second portion 70 </ b> C of the extension portion 71 and the first end portion 41 </ b> B of the first tube portion 41. The second holder portion 32 is connected and fixed between the second end portion 41 </ b> C of the first tube portion 41 and the first end portion 42 </ b> B of the second tube portion 42. The second holder portion 32 is fixed to the second attachment target portion 102 using a clamp member 92. The second end portion 42 </ b> C of the second tube portion 42 is connected to the second end portion 76 </ b> C of the extension portion 76.

  The clamp members 91 and 92 shown in FIG. 2 are, for example, plastic band-like members, and the first holder 31, the second holder 32, and the wire harness 200 can be fixed by winding and pulling. Reference numeral 79 denotes a vinyl tape that can fix the wire harness 200 to the protrusion 77.

  Next, the usage example of the grommet 10 mentioned above is demonstrated.

  FIG. 9 is a cross-sectional view showing the grommet 10 and the wire harness 200 protected by passing through the grommet 10.

  As shown in FIG. 9, the wire harness 200 is passed through the grommet 10. The wire harness 200 is in a free state without any restriction in the grommet 10.

  As shown in FIG. 2, the first insertion end portion 70 of the first mounting portion 21 of the grommet 10 is fitted and attached to the insertion hole 103 of the first attachment target portion 101. Similarly, the second insertion end portion 75 of the second mounting portion 22 of the grommet 10 is fitted into the insertion hole 104 of the second attachment target portion 102 and attached. At this time, in the example of FIG. 2, the second tube portion 42 of the grommet 10 is bent from the state of the second tube portion 42 of the grommet 10 of FIG.

  And the 1st holder part 31 is fixed to the 1st attachment object part 101 using the clamp member 91, for example. Moreover, the 2nd holder part 32 is fixed to the 1st attachment object part 101 using the clamp member 92, for example. Thereby, the grommet 10 can be reliably fixed between the first attachment target part 101 and the second attachment target part 102 using the clamp members 91 and 92.

  As shown in FIGS. 1 and 2, the outer shapes of the first holder portion 31 and the second holder portion 32 are matched with the outer shapes of the first mounting portion 21 and the first tube portion 41 in the illustrated example, or The internal space for passing the wire harness 200 in the first holder portion 31 and the second holder portion 32 can be sufficiently secured. For this reason, even if the clamp members 91 and 92 fasten the first holder part 31 and the second holder part 32 respectively, the internal space for allowing the wire harness 200 to pass through the first holder part 31 and the second holder part 32 is sufficient. Can be secured. Of course, the interior space for letting the wire harness 200 pass in the 1st mounting part 21, the 2nd mounting part 22, and the 1st tube part 41 and the 2nd tube part 42 is fully ensured.

  Moreover, the material of the first holder portion 31 and the second holder portion 32 is preferably harder than the materials of the first mounting portion 21, the second mounting portion 22, and the tube 23, and its shape is not easily deformed. Since the first holder portion 31 and the second holder portion 32 are prevented from being deformed by the fastening force of the members 91 and 92, the wire harness 200 passing through the inside of the grommet 10 can be fixed without being fixed. is there. In other words, when the grommet 10 of the embodiment of the present invention is used, the setting path of the wire harness 200 is regulated and protected by the grommet 10, but is not fixed at all by attaching the clamp members 91 and 92, and the wire The harness 200 is free in the grommet 10.

Therefore, for example, even when the first attachment target part 101 is a car body and the second attachment target part 102 is a car door, and the door is repeatedly opened and closed, It is possible to prevent a phenomenon that the wire harness 200 is damaged due to the generated bending. That is, even if the wire harness 200 is repeatedly bent together with the grommet 10, the wire harness 200 is not restrained in the grommet 10, and the wire harness 200 can be reliably prevented from being damaged. Since the outer shape of the second holder portion 32 is matched to the outer shapes of the first mounting portion 21 and the first tube portion 41 in the illustrated example, the size of the grommet 10 is not increased unnecessarily.

    In the grommet 10 according to the embodiment of the present invention, the first mounting portion 21 is mounted on the first attachment target portion 101 and passes through the wire harness 200, and the second mounting portion 22 is mounted on the second attachment target portion 102 and wire harness. The tube 23 is provided between the first mounting portion 21 and the second mounting portion 22 and can be bent. And the holder 30 is arrange | positioned between the 1st mounting part 21 and the 2nd mounting part 22, is connected to the tube 23, lets the wire harness 200 pass, and the 1st attachment object part 101 and the 2nd attachment object part are clamped. It is held on at least one of 102.

    The inner shape of the holder 32 is substantially matched to the outer shape of the tube 23 and the outer shape of the first mounting portion 21, and the tube 23 disposed between the second holder portion 32 of the holder 32 and the second mounting portion 22. The second tube portion 42 is bendable. Thereby, even if it bends repeatedly, it can prevent reliably that a wire harness is damaged. In addition, since the second tube portion 42 of the tube 23 disposed between the second holder portion 32 of the holder 32 and the second mounting portion 22 can be bent, the wire harness 200 can be bent from the first attachment target portion 101 to the second attachment target. The wire harness 200 can be easily and reliably guided to the part 102 side, and the wire harness 200 is hardly damaged.

  In the grommet 10 according to the embodiment of the present invention, the holder 30 includes a first holder portion 31 and a second holder portion 32, and the first holder portion 31, the second holder portion 32, the first mounting portion 21, and the second mounting portion. The part 22 is held by four-point support. Thereby, the grommet 10 can be firmly fixed to the first attachment target portion 101 such as a vehicle body and the second attachment target portion 102 such as a door in close contact with each other.

  By the way, this invention is not limited to the said embodiment, A various modified example is employable.

  For example, in the example shown in FIG. 1, the first holder portion 31 is fixed to the first attachment target portion 101 by the clamp member 91, and the second holder portion 32 is fixed to the first attachment target portion 101 by the clamp member 92. Has been. However, the first holder portion 31 and the second holder portion 32 may be fixed to the first attachment target portion 101 and the second attachment target portion 102 by the clamp members 91 and 92, respectively.

  In the illustrated example, the tube 23 has a first tube portion 41 and a second tube portion 42, and the outer shape of the first tube portion 41 is larger than the outer shape of the second tube portion 42. However, the outer shape of the first tube portion 41 and the outer shape of the second tube portion 42 may be the same as or substantially the same as the outer shapes of the first holder portion 31 and the second holder portion 32.

  The tube 23 may have a single tube portion. Although the holder 30 has the 1st holder part 31 and the 2nd holder part 32, the setting number of a holder part may be 1 or 3 or more.

  The case where the first attachment target part 101 is a vehicle body and the second attachment target part 102 is a car door is taken as an example, and the first attachment target part 101 is the second attachment target part on the fixed part side. Reference numeral 102 denotes a movable part side. However, the first attachment target part 101 may be another type of fixed part, and the second attachment target part 102 may be another movable part. The first attachment target part 101 may be on the movable part side, and the second attachment target part 102 may be on the fixed part side. The first tube portion 41 and the second tube portion 42 of the tube 23 may be bendable and extendable. Each embodiment of the present invention can be arbitrarily combined.

  FIG. 10 shows another example in which the grommet 10 according to the embodiment of the present invention is mounted. In FIG. 10, the 1st attachment object part 101 is a vehicle body of a motor vehicle, and the 2nd attachment object part 102 is a back door of this motor vehicle. This automobile is, for example, a 5-door car or a 3-door car.

    The second attachment target part 102 is held by the hinge mechanism 1000 so that it can be opened and closed with respect to the first attachment target part 101. The hinge mechanism 1000 includes a hinge member 1001 on the vehicle body side and a hinge member 1002 on the back door side, and the hinge member 1001 and the hinge member 1002 are connected by a pin 1003 so as to be rotatable.

    The first mounting portion 21 of the grommet 10 is fitted into the mounting hole on the first mounting target portion 101 side, and the second mounting portion 22 of the grommet 10 is mounted on the mounting hole on the second mounting target portion 102 side. It is fitted in. The first holder part 31 is fixed to the hinge member 1001 on the vehicle body side using the clamp member 400, and the second holder part 32 is fixed to the hinge member 1002 on the back door side using the clamp member 500. ing. In this mounted state, the first tube portion 41 and the second tube portion 42 are bent.

    The grommet 10 accommodates wiring to the lights on the back door side, for example. The second tube portion 42 is bent in order to attach the second attachment portion 22 to a predetermined position of the second attachment target portion 102.

    When the second attachment target portion 102 is opened and closed with respect to the first attachment target portion 101, the first tube is adjusted in accordance with the position of the hinge member 1002 rotating about the pin 1003 with respect to the hinge member 1001. The part 41 is bent between the first holder part 31 and the second holder part 32.

    In the grommet 10 shown in FIG. 1, the direction of the insertion end portion 70 of the first mounting portion 21 and the direction of the insertion end portion 75 of the second mounting portion 22 are 180 degrees opposite to each other. The direction of the insertion end portion 70 of the first mounting portion 21 and the direction of the insertion end portion 75 of the second mounting portion 22 can be provided in the same direction.

1 is a perspective view showing a first preferred embodiment of a grommet of the present invention. It is a perspective view which shows the example which mounted | wore with the grommet of FIG. It is a front view of a grommet. It is a top view of a grommet. It is a bottom view of a grommet. It is a rear view of a grommet. It is a left view of a grommet. It is a right view of a grommet. It is a figure which shows the cross section of a grommet. It is a figure which shows another example of mounting | wearing of a grommet.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Grommet 21 1st mounting part 22 2nd mounting part 23 Tube 31 1st holder part 32 2nd holder part 41 1st tube part 42 2nd tube part 91 Clamp member 92 Clamp member 101 1st attachment object part 102 2nd attachment Target part 103 Mounting hole 104 Mounting hole 200 Wire harness

Claims (5)

A grommet arranged between the first attachment target part and the second attachment target part for covering and protecting the wire harness,
A first mounting portion that is mounted on the first mounting target portion and passes the wire harness;
A second attachment portion attached to the second attachment target portion and passing the wire harness;
A bendable tube that is provided between the first mounting portion and the second mounting portion and passes the wire harness;
It is arranged between the first mounting part and the second mounting part, is connected to the tube, passes through the wire harness, and is held by at least one of the first mounting target part and the second mounting target part by a clamp member A first holder and a second holder ,
The first mounting portion, the second mounting portion, and the tube are formed of a flexible material,
The first mounting part has an insertion end part for inserting the wire harness and an extension part formed continuously from the insertion end part,
The tube has a first tube and a second tube,
The first holder is connected and fixed between the extension and the first tube;
The second holder is connected and fixed between the first tube and the second tube;
The outer shape of the first holder is approximately matched to the outer shape of the first tube and the outer shape of the extension of the first mounting portion,
Tube portion of the second tube disposed between the second section and the second holder Ri bendable der,
The extension and the first tube are formed to have a predetermined angle through the first holder,
The grommet is held by the first holder, the second holder, the first mounting portion, and the second mounting portion . The extension portion is formed continuously from the insertion end portion so that a guide route of the wire harness at the insertion end portion and a guide route of the wire harness at the extension portion intersect. The grommet according to claim 1.   The grommet according to claim 1, wherein the first attachment target part is a fixed part, and the second attachment target part is a movable part movable with respect to the fixed part.   The grommet according to claim 3, wherein the first attachment target part is a vehicle body, and the second attachment target part is a door that can be opened and closed with respect to the vehicle body. Wherein the second mounting portion, the grommet according to claim 1, wherein a protrusion for fixing the wire harness is formed.

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