JP5809432B2 - Vehicle door handle device - Google Patents

Description

  The present invention relates to a vehicle door handle device.

  As a vehicle door handle device in which an electrostatic capacity sensor for detecting approach to or contact with the handle body is incorporated in the handle body, one described in FIG.

  In this conventional example, the capacitance sensor has an electrode unit, a substrate (detection circuit), etc., and is accommodated in an accommodation recess formed in the handle body, and then fixed using a potting agent.

Japanese Patent No. 3619505

  However, since the above-described conventional example uses a potting agent for fixing the capacitance sensor, there is a problem that the manufacturing workability is poor. That is, the potting agent takes time to cure, and furthermore, since it has fluidity until it is cured, it is necessary to hold the handle body in a predetermined posture until it is cured after the potting agent is supplied. It becomes a cause of decline.

  The present invention has been made to solve the above-described drawbacks, and an object of the present invention is to provide a vehicle door handle device with good assembling workability.

  The handle device is formed by accommodating a capacitance sensor 4 in a hollow portion of a handle body 3 formed by stacking and connecting front and back covers 1 and 2.

  The capacitance sensor 4 includes an electrode and a detection circuit that detects contact or the like based on a change in capacitance around the electrode, and a housing recess that is surrounded by a partition wall 5 and is formed on either the front or back cover. 6 is accommodated. Covering the housing recess 6 with the sealing sheet 7 prevents damage to the capacitance sensor 4 due to water droplets or the like in the housing recess 6 or a decrease in detection reliability.

  Covering the opening of the housing recess 6 with the sealing sheet 7 eliminates the waiting time until the curing is completed as in the case of using a potting resin, so that the work efficiency is improved.

  Further, the partition wall 5 of the housing recess 6 has a height dimension in which the distance from the other cover is uniform over the entire circumference. Is evenly elastically compressed over the entire circumference.

  As a result, it becomes possible to exhibit a sealing performance not inferior to a seal using a potting resin or the like.

  Further, since the sealing sheet 7 is interposed between the front and back covers 1 and 2, the connecting portion between the front and back covers 1 and 2 is maintained in a pressure contact state by the restoring force of the sealing sheet 7. Occurrence is suppressed.

Capacitive sensor 4, mounting board detection circuit is mounted, and it is also possible to electrodes housed in individual receiving recess 6, by integrating over these by a suitable outer shell member Assembling workability is improved.

In addition , the fitting protrusion 9 is provided on the side wall of the outer shell, that is, the surface other than the ceiling and the bottom surface, and the lead wire 8 of the detection circuit is drawn out. By fitting into the fitting recess 10 formed in 5, water can be reliably prevented from entering the housing recess 6 via the insertion portion of the lead wire 8.

  Further, when the antenna 11 is housed in the housing recess 6, the capacitance sensor 4 is protruded from the block portion 12 that is arranged at one end portion and houses the detection circuit, and the thin plate portion 13 that houses the electrode. When the antenna 11 is stacked and held on the plate portion 13, the accommodation efficiency is improved. In this case, the use of the antenna 11 formed in a rectangular block shape by coating the conductor of the antenna 11 with a resin facilitates handling.

  Further, when the insertion groove 15 is formed in the ceiling wall of the fitting protrusion 9 and the lead wire 14 of the antenna 11 is inserted, water can be reliably immersed into the housing recess 6 via the insertion portion of the lead wire 14 of the antenna 11. Can be prevented.

  When the electronic component 16 disposed outside the housing recess 6 is attached to the handle body 3, for example, as a switch member, between the housing recess 6 and the outer wall of the cover where the housing recess 6 is formed. When the insertion recess 18 is formed along the accommodation recess 6, the lead wire 17 of the electronic component 16 can be routed while being fitted to the insertion recess 18, so that the workability of connecting the front and back covers 1 and 2 is improved. Can be made. In particular, when a narrow portion is formed in the whole or a part of the insertion recess 18 so that the function of holding the lead wire can be exhibited, the front and back cover 1 of the lead wire 17 when the front and back covers 1 and 2 are connected, Since the biting between the two can be reliably prevented, the assembly workability can be further improved.

When the handle body 3 is formed as a grip handle , when the handle body 19 is operated by gripping the grip portion 19 , the contact portion between the front and back covers 1 and 2 may be rubbed and a squeak noise may be generated. If the sealing sheet 7 is arranged over almost the entire area of the grip portion 19, direct contact between the front and back covers 1 and 2 at the grip portion 19 is avoided, so that it is possible to prevent generation of squeaking noise during operation.
According to the present invention,
A vehicle door handle device in which an electrostatic capacity sensor 4 having an electrode and a detection circuit is housed in a hollow portion of a handle body 3 formed by stacking and connecting front and back covers 1 and 2,
Either one of the front and back covers 1 and 2 has an accommodation recess surrounded by a partition wall 5 having a height such that the gap between the top surface and the opposing surface of the other cover is substantially uniform over the entire circumference. 6 is formed and the capacitance sensor 4 is accommodated,
It is also possible to provide a vehicle door handle device in which the housing recess 6 is covered with a sealing sheet 7 having a peripheral edge that is sandwiched between the top surface and the facing surface of the partition wall 5.

  According to the present invention, the assembly efficiency of the capacitance sensor is improved, the assembly is facilitated, and the intrusion of water or the like around the capacitance sensor is prevented. Detection accuracy can also be improved.

It is a figure which shows this invention, (a) is a front view, (b) is the 1B sectional view taken on the line of (a). It is a figure which shows a handle | steering-wheel main body, (a) is a longitudinal cross-sectional view, (b) is a 2B direction arrow directional view of (a). It is a figure which shows a back cover, (a) is a figure which shows the wiring state of a lead wire, (b) is a figure which shows the state which covered the accommodation recessed part with the sheet | seat for sealing. FIGS. 2A and 2B are cross-sectional views of the handle body, wherein FIG. 2A is a cross-sectional view taken along line 4A in FIG. 2A, and FIG. 2B is a cross-sectional view taken along line 4B in FIG. It is explanatory drawing which shows mounting | wearing of an electrostatic capacitance sensor, (a) is a front view, (b) is 5B sectional view taken on the line of (a), (c) is 5C sectional view taken on the line of (a).

  As shown in FIG. 1, the vehicle door handle device includes a handle base 21 fixed to a vehicle door panel (door 20), and a handle body 3 connected to the handle base 21.

  The handle device is configured as a so-called grip-type handle device that is operated by grasping a grip portion 19 set at the center portion of the handle body 3 and rotating it around a rotation center (CH) with respect to the handle base 21. It is mounted on the door of the vehicle in a posture in which the rotation center end located at is directed to the vehicle head. As shown by a chain line in FIG. 1 (b), the operating step portion 22 formed at the rotating end of the handle main body 3 by the rotating operation moves toward the surface of the door 20 and is a lever that is rotatably connected to the handle base 21. 23 actuating pieces 23a are moved toward the door surface.

  Along with the movement of the operating piece 23a, the lever 23 is rotationally driven around the rotation center (CL), and a door lock device 25 mounted inside the door via a transmission member 24 such as a cable connected to the lever 23 is provided. Operates and unlocks the door.

  As shown in FIG. 2 and subsequent figures, the handle body 3 is formed in a hollow shape by connecting the front and back covers 1 and 2 formed of a synthetic resin material, and detects the user's contact with the handle body 3 in the hollow portion. An electrostatic capacity sensor 4 for receiving, an antenna 11 for communicating with a portable electronic key (not shown) possessed by the user, and a push button switch 16 are accommodated.

  As shown in FIG. 4, the front cover 1 that constitutes an exposed surface when mounted on the door 20 has an opening that opens in the center direction of the vehicle width and is formed in a substantially U-shaped cross-sectional shape at the front end. Each has a hinge protrusion 1a and an operating leg 1b having the above-described operating step 22 at the rear end.

  The back cover 2 constitutes a back wall facing the door panel 20 when attached to the door, and is attached so as to fit into the opening of the front cover 1. Protrusions 19 a and 19 a for notifying the user of the range of the grip portion 19 are provided on the back surface portion of the back cover 2. The back cover 2 is connected to the front cover 1 by inserting the mounting protrusion 2a formed at the rear end portion into the mounting recess 1c formed at the front cover 1 and fastening the front end portion with the screw 26. Done.

  The electrostatic capacitance sensor 4 is unitized by covering the detection circuit and the electrode with a synthetic resin material, and the thick block portion 12 in which the mounting board on which the detection circuit is mounted is accommodated, and the electrode is accommodated. It consists of a thin plate portion 13. A lead wire 8 drawn from the block portion 12 is connected to the detection circuit, and contact with the handle body 3 is detected by the output of the lead wire 8.

  As shown in FIG. 5, the lead wire 8 is pulled out from the front end surface of the block portion 12, and the fitting protrusion 9 bulges on the front end surface of the block portion 12 so as to surround the lead wire 8 that is pulled out. Further, on the upper surface of the front end portion of the block portion 12, a seal protrusion 12 a having a flat upper surface (top surface) is bulged up to the front end surface of the fitting protrusion 9, and is inserted into the center portion of the seal protrusion 12 a. A groove 15 is provided in the longitudinal direction.

  On the other hand, the antenna 11 is formed by coating an antenna conductor with a resin. In order to enable mounting on the plate part 13, the antenna 22 has a rectangular parallelepiped whose width dimension is substantially equal to the width dimension of the capacitance sensor 4 and whose length dimension is slightly shorter than the length dimension of the plate part 13. It is formed into a shape. The height of the antenna 11 is substantially the same as the height of the block 12 of the capacitance sensor 4, and the upper edge is slightly higher than the upper edge of the block 12 when placed on the plate 13. Located at a high position.

  In order to accommodate the capacitance sensor 4 and the antenna 11, a rectangular housing recess 6 surrounded by a partition wall 5 is formed in the back cover 2. As shown in FIG. 5, the accommodating recess 6 is formed in a range corresponding to the entire area of the grip portion 19, and the fitting protrusion 9 of the capacitance sensor 4 is provided on the partition wall 5 positioned on the front surface of the accommodating recess 6. The fitting recess 10 into which the is fitted is formed.

  Further, the top surface of the front partition wall 5 is formed as a flat surface, and as shown in FIG. 4B, the seal protrusion 12a is fitted in the state in which the fitting protrusion 9 is fitted in the fitting recess 10. The back surface of the front cover 1, that is, the surface with respect to the top surface of the seal projection 12a is formed by a plane parallel to the top surface of the seal projection 12a.

  On the other hand, the rear end and the top surfaces of the partition walls 5 on both sides are gentle curvature surfaces corresponding to the width of the front cover 1 and the curvature of the central portion in the longitudinal direction. The gap between the top surface of the partition wall 5 and the surface of the front cover 1 facing the top surface is substantially constant over the entire circumference. By absorbing the height change due to the curvature of the front cover 1 by the height of the partition wall 5 and making the gap constant, there is no need to set a thick portion or the like for forming a seal surface on the front cover 1. Therefore, it is possible to set the front cover 1 with less chance of occurrence of surface defects such as sink marks due to changes in thickness.

  The storage of the capacitance sensor 4 and the like in the housing recess 6 formed as described above is performed by placing the antenna 11 on the plate portion 13 after placing the capacitance sensor 4 in the housing recess 6. In addition, an adhesive tape 27 is interposed between the bottom wall of the housing recess 6 and the upper surface of the plate portion 13 in order to prevent the capacitance sensor 4 and the antenna 11 from shaking.

  The lead wire 14 drawn out from the antenna 11 is guided out of the housing recess 6 through the insertion groove 15 formed in the capacitance sensor 4.

  The above housing recess 6 is covered with a sealing sheet 7. The sealing sheet 7 is a sheet body having a moderately flexible thickness. For example, an ethylene propylene diene rubber (EPDM rubber) foam sheet, specifically, EPT SEALER (registered trademark) can be used.

  As shown by hatching in FIG. 3B, when the front and back covers 1 and 2 are connected in a state where the housing recess 6 is covered by the sealing sheet 7, the periphery of the sealing sheet 7 is the same as the top surface of the partition wall 5. It is sandwiched between the opposing surfaces of the front cover and pressed almost uniformly over the entire circumference to be elastically deformed, and the intrusion of water droplets or the like into the housing recess 6 is prevented.

  On the other hand, the push button switch 16 is fixed to the rear end of the back cover 2, and the front cover 1 is provided with an operation opening 1d for exposing the operation button 16a of the push button switch 16 to the outside of the handle body 3. The As shown in FIGS. 3 and 4, the lead wire 17 of the push button switch 16 is guided forward through an insertion recess 18 formed between the partition wall 5 of the housing recess 6 and the side wall surface of the back cover. . As shown in FIG. 4, the insertion recess 18 is formed in the longitudinal passage of the back cover 2 so that the two lead wires 17 drawn out from the push button switch 16 can be inserted in a state of being overlapped in the front and back directions. The

  When the lead wire 17 of the push button switch is inserted into the insertion recess 18, the lead wire 17 will not be caught between the front and back covers 1 and 2 when the front and back covers 1 and 2 are connected. However, if an appropriate number of protrusions that press-contact the lead wire 17 are provided on the side wall of the insertion recess 18, the wiring posture of the lead wire 17 can be restricted. Can be prevented more reliably.

  As shown in FIG. 4, an appropriate number of lead wires 17 of the push-pull switch 16, the antenna 11 drawn out from the partition wall 5 of the housing recess 6, and the lead wires 8 and 14 of the capacitance sensor 4 are collected. A connector 28 is attached to one end and is pulled out of the handle body 3 from the front end of the handle body 3 as shown in FIG.

DESCRIPTION OF SYMBOLS 1 Front cover 2 Back cover 3 Handle body 4 Capacitance sensor 5 Bulkhead 6 Receiving recessed part 7 Sealing sheet 8 Capacitance sensor lead wire 9 Fitting protrusion 10 Fitting recessed part 11 Antenna 12 Block part 13 Plate part 14 Antenna Lead wire 15 Insertion groove 16 Electronic component 17 Electronic component lead wire 18 Insertion recess 19 Grip portion

Claims (5)

A vehicle door handle device that houses an electrostatic capacity sensor having an electrode and a detection circuit in a hollow portion of a handle body formed by stacking and connecting front and back covers,
Either one of the front and back covers is formed with a housing recess surrounded by a partition wall having a height such that the gap between the top surface and the opposing surface of the other cover is substantially uniform over the entire circumference. The capacitive sensor is housed,
The housing recess is covered with a sealing sheet having flexibility such that the peripheral edge is sandwiched between the top surface and the facing surface of the partition wall ,
And the capacitance sensor is formed so as to cover the detection circuit and the electrode with an outer shell made of insulating resin,
The side wall portion of the outer shell is provided with a fitting protrusion that becomes a lead wire lead-out portion,
The capacitance sensor is a vehicle door handle device that is accommodated in an accommodation recess by fitting a fitting protrusion into a fitting recess formed in a partition wall . While having an antenna housed in the handle body, the capacitance sensor is formed by projecting a thin plate portion that houses an electrode from a block portion that is disposed at one end portion and houses a detection circuit,
The vehicle door handle device according to claim 1, wherein the antenna is stacked and held on a plate portion and disposed in a housing recess . The vehicle door handle device according to claim 2, wherein an insertion groove through which the lead wire of the antenna is inserted is formed in the fitting protrusion . An insertion recess is formed between the outer wall of the cover in which the housing recess is formed and the partition wall of the housing recess, through which a lead wire of an electronic component that is disposed outside the housing recess and is attached to the handle body is inserted. The vehicle door handle device according to any one of 1 to 3 . The handle body is formed as a grip handle having a grip portion at the center,
The vehicle door handle device according to any one of claims 1 to 4, wherein the sealing sheet is provided over substantially the entire grip portion of the handle body .

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