JP2013067197A - Electric door mirror - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric door mirror configured to ensure water tightness of a harness with a simple structure and to enable easy pull-out of the harness.SOLUTION: In an electric door mirror 1, when a harness 10 inserted into a cylinder 11 is pulled out, a first seal member 12 is compressed in the cylinder 11 to seal a gap between the harness 10 and the cylinder 11, thereby preventing water from entering a vehicle. The boundary between the first and second seal members 12, 13 is utilized as a mark P for pulling out the harness 10 to align the mark P with a tip of the cylinder 11, thereby deciding a pull-out length L of the harness 10 accordingly, to enable easy pull-out of the harness 10 by the predetermined pull-out length L.

Description

  The present invention relates to an electric door mirror provided with a harness used for power supply from a vehicle.

As this type of electric door mirror that has been generally used conventionally, a door mirror main body having a mirror surface angle adjusting unit for adjusting the angle of the mirror, and a door mirror base for fixing the door mirror main body to a vehicle door, The electric storage unit for rotating and storing the door mirror main body is attached to the door mirror main body. Furthermore, the electric door mirror is provided with a harness for supplying electric power to the motors of the mirror surface angle adjustment unit and the electric storage unit. The harness is exposed on the vehicle side from a gasket attached to the door mirror base, and a connector for connecting to wiring in the vehicle is provided at the tip of the harness. Thus, since the harness is exposed on the vehicle side, water easily enters the vehicle through the harness.
Therefore, Japanese Patent Application Laid-Open No. 2007-296946 has been disclosed as a countermeasure for this. In the electric door mirror described in this publication, a cylindrical part protrudes from the door mirror base, and a semi-cylindrical recess for inserting a harness is provided on the upper part of the cylindrical part. Further, the gasket is formed with a protrusion for closing the upper opening of the recess. When the gasket is assembled to the door mirror base, the harness inserted into the recess is pressed from above by the protrusion on the gasket side, thereby achieving a watertight structure.

JP 2007-296946 A

  However, since the conventional electric door mirror described above employs a seal structure unique to the door mirror base and gasket, the structure of the door mirror base and gasket is complicated. In addition, the length that the harness is pulled out from the gasket is generally different for each vehicle type, and when assembling the door mirror, it is necessary to work while measuring the harness pull-out length. The work was complicated.

  SUMMARY OF THE INVENTION An object of the present invention is to provide an electric door mirror that secures the water tightness of a harness with a simple structure and that facilitates the harness pull-out operation.

The present invention relates to a door mirror base for attaching a door mirror main body to a vehicle, a gasket attached to the door mirror base and having a sealing function in close contact with the vehicle, and a harness connected to an electrical component and exposed from the gasket on the vehicle side. In the electric door mirror equipped with,
The harness that is inserted into the cylindrical part protruding from the gasket toward the vehicle body side is
A first seal member that is fixed to the harness so as to cover the harness at a predetermined position of the harness, and is capable of being compressed and deformed by being inserted into the cylindrical portion;
A second seal member fixed to the harness so as to overlap at an end of the first seal member on the vehicle side,
The boundary between the first seal member and the second seal member and the tip of the tube portion are aligned.

  In this electric door mirror, a harness is inserted into a cylindrical portion that protrudes from the gasket toward the vehicle body side, and the harness can be compressed and deformed in the cylindrical portion so as to cover the harness at a predetermined position of the harness. The seal member is fixed. Therefore, when the drawing operation is performed with the harness inserted into the cylindrical portion, the first seal member is compressed in the cylindrical portion, thereby sealing the gap between the harness and the cylindrical portion, so that water enters the vehicle. It becomes difficult to enter. Further, the harness is provided with a second seal member fixed to the harness so as to overlap at an end portion of the first seal member on the vehicle side. Therefore, in the operation of inserting the first seal member into the cylindrical portion of the gasket, the second seal member prevents the first seal member from being turned up and facilitates the insertion of the first seal member into the cylindrical portion. Yes. The feature of the present invention is that it focuses on the use of the boundary between the first seal member and the second seal member having the above-described functions as a mark for pulling out the harness. That is, by creating a boundary between the first seal member and the second seal member (hereinafter referred to as a “mark”) at a position corresponding to the pull-out length of the harness, this mark is used when pulling out the harness from the tubular portion. By simply aligning with the tip of the tube portion, the harness pull-out length is inevitably determined, and the harness pull-out operation in which the harness pull-out length is predetermined can be easily performed.

In addition, the cylindrical portion has a truncated cone shape with a diameter that decreases toward the tip.
When such a configuration is adopted, the degree of adhesion between the first seal member and the tubular portion can be gradually increased toward the distal end of the tubular portion, so that the sealing performance is improved on the distal end side of the tubular portion. Moreover, when the harness is pulled out, the first seal member advances while being compressed in the cylindrical portion, and accordingly, the degree of compression of the first seal member is increased, and the pull-out force of the harness is gradually increased. When the harness pull-out force increases beyond a certain level, the operator can be made aware of the end of the harness pull-out operation, and the harness can be pulled out gradually. It is possible to easily perform a positioning operation for matching with.

Further, a claw portion that extends in the axial direction of the cylindrical portion and protrudes is provided at the tip of the cylindrical portion main body provided in the cylindrical portion.
When such a configuration is adopted, the tip of the claw portion provided in the cylinder portion is used for alignment of the mark of the harness. In other words, when the harness mark suddenly appears from the tip of the tube portion during the harness pulling operation, it is difficult for the operator to accurately align the mark of the harness and the tip of the tube portion by visual observation. Therefore, by adopting the claw part, after the harness mark is once exposed from the cylinder part body, it is possible to perform a pulling operation to match the tip of the claw part. Can be accurately aligned.

  According to the present invention, the watertightness of the harness can be ensured with a simple structure, and the harness pull-out operation can be facilitated.

It is a front view showing one embodiment of the electric door mirror concerning the present invention. It is a side view which shows the state by which the harness was pulled out from the gasket. It is a principal part expanded sectional view of FIG. (A) is a state where the first seal member is affixed to the harness, (b) is a state where the second seal member is affixed to the harness, and (c) is a state where the harness is inserted into the cylindrical portion. FIG. It is a perspective view which shows the cylinder part in which the nail | claw part was provided.

  Hereinafter, preferred embodiments of an electric door mirror according to the present invention will be described in detail with reference to the drawings.

  As shown in FIG. 1, an electric door mirror 1 includes a door mirror base 2 that is bolted to a front door of a vehicle and a base body 2 a of the door mirror base 2 that is in close contact with the front door and has a sealing function. 3 and a door mirror main body 4 rotatably attached to a pedestal 2b of the door mirror base 2.

  The door mirror main body 4 includes a mirror 7 disposed on the opening side of the housing 6, a mirror surface angle adjustment unit that is fitted to the back surface of the mirror 7 and adjusts the angle of the mirror 7, and a base portion 2 b of the door mirror base 2. And an electric storage unit for rotating the door mirror body 4 itself to place the door mirror body 4 in a retracted state, and a turn lamp unit 8 fixed to the housing 6.

  The electric door mirror 1 is supplied with a door mirror base 2 and a door mirror main body 4 in order to supply electric power to the motor in the mirror surface angle adjustment unit, the motor in the electric storage unit, and the lamp in the turn lamp unit 8, respectively. A harness 10 distributed in the interior is provided. The harness 10 is exposed on the vehicle side from a gasket 3 attached to the base body 2a of the door mirror base 2, and a connector 10a for connecting to wiring in the vehicle is provided at the tip of the harness 10.

  When such a harness 10 is exposed from the gasket 3 on the vehicle side, water easily enters the vehicle through the harness 10. Therefore, the following measures are taken.

  As shown in FIGS. 2 and 3, the gasket 3 having a sealing function is provided with a cylindrical portion 11 that protrudes to the outside, that is, toward the vehicle body. The cylindrical portion 11 has a harness from the inside toward the outside. 10 is inserted. At this time, the inside of the cylindrical portion 11 is closed with a first seal member 12 capable of compressive deformation, thereby preventing water from entering the vehicle through the harness 10 from the outside. . As the first seal member 12, a thick tape made of a foam material can be applied. Further, the second seal member 13 is overlapped with the end portion 12 a of the first seal member 12 and bonded to the harness 10 so that the first seal member 12 is not exposed from the cylindrical portion 11. An insulating tape or the like can be applied as the second seal member 13. In the operation of inserting the first seal member 12 into the cylinder portion 11 of the gasket 3, the second seal member 13 prevents the first seal member 12 from being turned over, and the first seal member 12 is inserted into the cylinder portion 11. The seal member 12 is easily inserted.

  As shown in FIG. 4A, a foam tape as the first seal member 12 is wound around and fixed to a predetermined position of the harness 10. Thus, the harness 10 is covered with the first seal member 12 at a predetermined position of the harness 10. Next, as illustrated in FIG. 4B, an insulating tape as the second seal member 13 is wound around the harness 10 so as to overlap the vehicle-side end portion 12 a of the first seal member 12. Then, as shown in FIG. 4C, the harness 10 is inserted into the cylinder portion 11 from the inside to the outside, and the first seal member 12 is inserted into the cylinder portion 11 while pulling the harness 10 in the arrow A direction. Press-fit.

  In the electric door mirror 1, when the harness 10 inserted into the cylindrical portion 11 is pulled out, the first seal member 12 is compressed in the cylindrical portion 11, whereby the harness 10, the cylindrical portion 11, This makes it difficult for water to enter the vehicle.

  Furthermore, the boundary between the first seal member 12 and the second seal member 13 is used as a mark P for pulling out the harness 10. That is, the boundary (hereinafter referred to as “mark P”) between the first seal member 12 and the second seal member 13 is created at a position corresponding to the pull-out length L of the harness 10 (see FIG. 4C). Thus, when pulling out the harness 10 from the cylindrical portion 11, the pullout length L of the harness 10 is inevitably determined by merely aligning the mark P with the tip of the cylindrical portion 11, and the pullout length L of the harness 10 is determined in advance. The specified harness pull-out operation can be easily performed.

  Moreover, the cylinder part 11 has comprised the truncated cone shape where a diameter becomes small as it goes to a front-end | tip. If such a configuration is adopted, the degree of adhesion between the first seal member 12 and the cylinder portion 11 can be gradually increased as the distance from the tip of the cylinder portion 11 increases. It is possible to reliably prevent water and dust from entering the vehicle. In addition, when the harness 10 is pulled out, the first seal member 12 advances while being compressed in the cylindrical portion 11, and accordingly, the degree of compression of the first seal member 12 increases, and the pull-out force of the harness 10 increases. Gradually grows. When the pulling-out force of the harness 10 becomes larger than a certain level, the operator can be made aware of the final stage of the pulling-out operation of the harness 10, and the harness 10 can be gradually pulled out. And a positioning operation for aligning the front end of the cylinder portion 11 with each other.

  As shown in FIG. 5, a claw portion 11 b that extends and projects in the direction of the axis R (see FIG. 1) of the cylinder portion 11 is provided at the tip of the cylinder portion body 11 a of the cylinder portion 11. When such a configuration is adopted, the tip of the claw portion 11 b provided in the cylindrical portion 11 is used for alignment of the mark P of the harness 10. That is, when the mark P of the harness 10 suddenly appears from the tip of the cylindrical part 11 during the pulling-out operation of the harness 10, it is difficult for the operator to accurately align the mark P of the harness 10 and the tip of the cylindrical part 11 by visual observation. . However, after the mark P of the harness 10 is once exposed from the cylinder main body 11a, a pulling operation can be performed so as to match the tip of the claw part 11b. Position alignment with the mark P of the harness 10 can be performed accurately.

  DESCRIPTION OF SYMBOLS 1 ... Electric door mirror, 2 ... Door mirror base, 3 ... Gasket, 4 ... Door mirror main body, 10 ... Harness, 11 ... Cylinder part, 11a ... Cylinder part main body, 11b ... Claw part, 12 ... 1st sealing member, 12a ... 1st 1 is an end of the seal portion, 13 is a second seal member, P is a boundary (mark).

Claims (3)

A door mirror base for attaching the door mirror body to the vehicle, a gasket attached to the door mirror base and having a sealing function in close contact with the vehicle, and a harness connected to an electrical component and exposed from the gasket to the vehicle side In the electric door mirror with
The harness inserted into the cylindrical portion protruding from the gasket toward the vehicle body side,
A first seal member that is fixed to the harness so as to cover the harness at a predetermined position of the harness, and that is inserted into the cylindrical portion and capable of compressive deformation;
A second seal member fixed to the harness so as to overlap at an end of the first seal member on the vehicle side,
An electric door mirror characterized in that a boundary between the first seal member and the second seal member and a tip of the cylindrical portion are aligned.   2. The electric door mirror according to claim 1, wherein the cylindrical portion has a truncated cone shape that decreases in diameter toward the tip. 3.   3. The electric door mirror according to claim 1, wherein a claw portion that extends and projects in an axial direction of the cylindrical portion is provided at a distal end of the cylindrical portion main body provided in the cylindrical portion.

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