JP2019011021A - Vehicle sensor attachment structure - Google Patents

Abstract

To provide a vehicle sensor attachment structure which restricts a rear position of an attachment panel with a decorative part to achieve aesthetic quality and sensor performance.SOLUTION: A vehicle sensor attachment structure has: a bumper face 1 formed with a grille opening 1a; a decorative part 2 which is formed at the grill opening 1a in a manner such that travel window can be introduced; a grille panel 3 disposed behind the grille opening 1a; a sensor 4 having a detection area that expands toward the front side; an attachment panel 30 which supports the sensor 4 and is detachably attached to the grille panel 3; and a restriction part 23 which extends rearward from the decorative part 2 and restricts rearward movement of the attachment panel 30. The restriction part 2 is provided with: a contact part 23a which contacts with a back surface of a body part 31 of the attachment panel 30; and a taper shaped guide part 23b which converts upward movement of the attachment panel 30 to forward movement.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a sensor mounting structure for a vehicle, and more particularly to a sensor mounting structure for a vehicle in which a sensor having a detection region that expands toward the front is disposed on a grill panel disposed on the rear side of a grill opening.

Conventionally, there is known a front bumper face that constitutes a front bumper in front of a bumper reinforcement that connects front ends of a pair of left and right front side frames that extend in the longitudinal direction of the vehicle body. On the upper side of the front bumper face, there is provided a front grille having an air inlet for introducing running air to a mechanism such as a radiator that requires cooling.
The front grille has a single type in which fins that form air inlets are formed integrally on the panel member, and a decorative part made of a mesh member on the surface of the grill panel (base grille) in which the opening is formed. There are also multiple (two member) types.

  By the way, a parking assist device that assists a steering operation by a driver when a vehicle is parked in a parking space is known. In this parking assistance device, is another vehicle parked in front or side of the vehicle moving forward using a detection system that detects the presence or absence of an obstacle within a predetermined range by an ultrasonic sensor installed at the front of the vehicle body? Alternatively, it is detected whether there is an obstacle other than the vehicle, and an empty space where no other vehicle or obstacle exists is determined as a parking section.

In general, an ultrasonic sensor has a detection region that expands as it is separated from the detection unit due to its detection characteristics. Therefore, as an irradiation hole formed in a body surface, for example, a front bumper face It is attached to the back surface of the body through a mounting panel in a state exposed to the body surface side through the opening.
The sensor mounting retainer of Patent Document 1 includes a retainer body corresponding to a mounting panel for holding a sensor, a pasting portion extending from the retainer body and pasted to the back surface of the front bumper face, and a retainer for the pasting portion. And a holding unit that guides the pasting state of the pasting part so as to be pasted to the back surface of the front bumper face from the side close to the main body.

JP, 2006-008923, A

The technique of Patent Document 1 can secure the attachment strength of the ultrasonic sensor on the body surface (front bumper face) having a predetermined curvature.
However, in the technique of Patent Document 1, it is necessary to separately form an irradiation hole for irradiating ultrasonic waves from the body side on the front bumper face.
In other words, the parking assist device is usually an optional setting, and when the ultrasonic sensor is attached to the vehicle body, after the vehicle is manufactured, the hole machining must be performed again in a dedicated post-process.
In addition, when the irradiation hole is formed in the front bumper face, there is a problem that the appearance is deteriorated and the design of the vehicle is impaired.

In view of this, it is conceivable to install an ultrasonic sensor on the front grill using the gaps between the mesh members of the decorating portion. Thereby, the irradiation hole formed in the grille panel can be made inconspicuous by the decoration part (mesh member), and it is possible to avoid the deterioration of the design property.
However, when an ultrasonic sensor is installed on the grill panel, in addition to the normal specification grill panel that does not set the parking support device as an option, it is necessary to prepare an optional dedicated grill panel that has the parking support device set as an option. It is disadvantageous in terms of production cost.
In addition, when the ultrasonic sensor is installed on the grill panel, there is a possibility that the performance of the ultrasonic sensor itself is degraded as follows.

As shown in FIG. 12, the bumper face 51 in which the grille opening 51a is formed, the decorating part 52 formed so that the running air can be introduced into the grille opening 51a, and supporting the decorating part 52 and the grille opening 51a. In a vehicle including a grill panel 53 disposed on the rear side and an ultrasonic sensor 54 supported on the grill panel 53 via a mounting panel 55, the ultrasonic sensor 54 is a decorative portion 52. It is possible to detect an obstacle or the like in a detection region based on the regulated irradiation angle α. The positional relationship between the decorating unit 52 and the ultrasonic sensor 54 changes depending on the sum of the mounting error between the decorating unit 52 and the grill panel 53 and the mounting error between the grill panel 53 and the mounting panel 55 (total error). To do.
Therefore, as shown in FIG. 13, when the ultrasonic sensor 54 is separated rearward from the decorating unit 52, the irradiation angle is regulated by the decorating unit 52, so that the irradiation angle β (β <α). There is a possibility that the detection area becomes narrow. In particular, when the decoration portion 52 is configured by a box-shaped mesh member that is long in the front-rear direction due to a request from the design concept, the positional accuracy of the ultrasonic sensor 54 has a greater influence on the performance of the sensor 54. .

  An object of the present invention is to provide a vehicle sensor mounting structure and the like that can achieve both design and sensor performance.

  The sensor mounting structure for a vehicle according to claim 1 is provided on a rear side of the grille opening, a bumper face formed with a grille opening, a decoration part formed so that running air can be introduced into the grille opening. In a vehicle sensor mounting structure including a grill panel and a sensor having a detection region that expands toward the front, a mounting panel that supports the sensor and is detachable from the grill panel, and extends rearward from the decorating portion. And a restricting portion for restricting rearward movement of the mounting panel.

This vehicle sensor mounting structure has a mounting panel that supports the sensor and can be attached to and detached from the grill panel, so that the irradiation hole of the sensor formed in the grill panel and the sensor itself are made inconspicuous by the decorative portion. It is possible to improve the design of the vehicle.
Since there is a restricting portion that extends rearward from the decorating portion and restricts the rearward movement of the mounting panel, the position of the decorating portion and the sensor is restricted by restricting the rear displacement of the mounting panel with reference to the decorating portion. The accuracy of the relationship can be improved and the detection area of the sensor can be secured.

According to a second aspect of the present invention, in the first aspect of the invention, the mounting panel includes a main body portion that can support the sensor and extends substantially orthogonal to the front-rear direction, and the restriction portion is the main body. It has the contact part which contact | abuts to the back surface of a part.
According to this configuration, the front-rear direction position of the mounting panel can be accurately regulated with the decoration portion as a reference by bringing the main body portion and the contact portion into surface contact.

According to a third aspect of the present invention, in the second aspect of the present invention, the mounting panel has a stepped flange portion projecting rearwardly fixed to the grill panel via a fastening member at an outer edge portion of the main body portion. It is characterized by.
According to this configuration, the mounting workability of the mounting panel to the grille panel can be improved with a simple configuration.

The invention of claim 4 is characterized in that, in the invention of claim 3, the stepped flange portion is formed with an insertion port through which the restriction portion can be inserted in the vertical direction.
According to this configuration, the mounting panel can be easily assembled in the vertical direction with respect to the grill panel.

The invention of claim 5 is the invention of claim 3 or 4, wherein the stepped flange portion is formed at the upper edge portion of the mounting panel, and the upper movement of the mounting panel is moved forward at the lower end portion of the restricting portion. It is characterized in that a tapered guiding portion that converts to movement is formed.
According to this configuration, the mounting panel can be positioned in the front-rear direction with respect to the decorative portion by assembling the mounting panel upward with respect to the grill panel.

The invention of claim 6 is characterized in that, in the invention of any one of claims 1 to 5, the decorating part is constituted by a mesh member having a plurality of vertically long rear open box parts.
According to this structure, even if it is the decorating part comprised by the mesh member which has a some vertically long back open box part, designability and sensor performance can be made compatible.

  According to the sensor mounting structure for a vehicle of the present invention, it is possible to achieve both design and sensor performance by restricting the rear position of the mounting panel using the decorative portion.

1 is a perspective view illustrating a schematic configuration of a vehicle body front portion of a vehicle according to a first embodiment of the present invention. It is a principal part front view of a vehicle body front part. It is a principal part expansion perspective view of FIG. It is a principal part rear view of a vehicle body front part. It is the principal part enlarged view of FIG. 4 which removed the panel for attachment. It is a principal part expansion perspective view of FIG. It is a perspective view of the attachment panel with which the sensor was mounted | worn. It is the VIII-VIII sectional view taken on the line of FIG. It is the IX-IX sectional view taken on the line of FIG. FIG. 5 is a cross-sectional view taken along line XX in FIG. 4. It is explanatory drawing of the assembly | attachment procedure of the panel for mounting with which the sensor was mounted | worn. It is a figure which shows the detection area | region of the ultrasonic sensor arrange | positioned in the regular position. It is a figure which shows the detection area | region of the ultrasonic sensor arrange | positioned in the position which moved back.

Hereinafter, modes for carrying out the present invention will be described based on examples.
In addition, the following description is only illustrations essentially and does not intend limiting the present invention, its application thing, or its use. Moreover, in the following drawings, the arrow F direction will be described as the front, the arrow L direction as the left, and the arrow U direction as the upward.

Embodiment 1 of the present invention will be described below with reference to FIGS.
FIG. 1 shows a vehicle body front part structure according to an embodiment of the present invention.
FIG. 1 schematically shows main components such as a bumper face 1 and a front grille F in the front portion of the vehicle, and other members such as a bonnet and a shroud panel are not shown. In addition, a parking assist device that assists the driver's operation during parking is installed as an optional specification in this vehicle. This parking assistance device includes a pair of left and right ultrasonic sensors (hereinafter abbreviated as sensors) 4 attached to the front center portion of the vehicle body, and a pair of left and right ultrasonic sensors 4A attached to the front side portions of the vehicle body. , An alarm device (not shown) that issues an alarm when an obstacle is detected by each of the sensors 4 and 4A, a back camera (not shown) that can capture the rear of the vehicle, and a liquid crystal display that can display an image captured by the back camera (Not shown) or the like.

First, the bumper face 1 will be described.
The bumper face 1 is a synthetic resin plate-like member that is formed in a predetermined gently curved shape that protrudes forward toward the center in the vehicle width direction in plan view, and is installed so as to cover the front end portion of the vehicle.
As shown in FIGS. 1 to 3, a substantially U-shaped grill opening 1 a is formed in the lower center portion of the bumper face 1 as a traveling wind introduction port in a front view. A frame member 11 that covers the inner edge portion and has a substantially pentagonal opening when viewed from the front is disposed at the inner edge portion of the grill opening 1a.
The bumper face 1 is formed with a lattice-like opening 1b at the lower center portion of the grill opening 1a.

Next, the front grille F will be described.
As shown in FIGS. 1-5, the front grille F is formed over the whole area of the grille opening 1a.
The front grille F is constituted by a decorating part 2 capable of introducing running air into the grille opening 1a, and a grille panel 3 disposed on the rear side of the decorating part 2 and the grille opening 1a.
The outer edge of the decorative portion 2 is supported on the grill panel 3 via a fastening member and a clip, and the outer edge of the grill panel 3 is supported on a portion near the grill opening 1a of the bumper face 1 via a fastening member and a clip. ing.

As shown in FIGS. 3, 5, and 6, the decorative portion 2 is a synthetic resin mesh having a plurality of vertically long box portions 20 and a plurality of plate-like connecting portions 21 that connect the box portions 20 to each other. It is comprised integrally by the member.
An emblem portion 22 that is in the shape of a manufacturer's emblem is installed at a substantially central portion of the decorating portion 2 in the vehicle width direction.

The box part 20 has a pair of upper and lower horizontal walls, a pair of left and right vertical walls that connect the pair of horizontal walls, and a front wall that closes the pair of horizontal walls and the front end of the vertical wall, and is a rear open rectangular parallelepiped. It is configured.
Each of the plurality of box portions 20 is arranged in a staggered manner, and the lower lateral wall of the box portion 20 is lower in height than the upper lateral wall of the lower box portion 20 adjacent to the left and right sides, and the upper lateral wall of the box portion 20 is The height position is set higher than the lower lateral wall of the upper box portion 20 adjacent to the left and right sides. Further, the rear end portion of the box portion 20 adjacent to the sensor 4 is formed to be in a front side position with respect to the rear end portions of the other box portions 20 (see FIGS. 8 and 9). That is, the front and rear dimensions of the box portion 20 near the sensor 4 are set shorter than the front and rear dimensions of the other box portions 20.

The connecting portion 21 vertically connects the lower lateral plate of the upper box portion 20 and the upper lateral plate of the lower box portion 20 every three rows.
The connecting part 21 connects the upper part of the left vertical wall of each box part 20 and the lower part of the right vertical wall of the upper box part 20 adjacent to the left in an inclined manner, and connects the lower part of the left vertical wall of the box part 20 to the left. The upper part of the right vertical wall of the adjacent lower box part 20 is connected in an inclined manner.

As shown in FIGS. 5, 6, and 11, the decoration portion 2 is formed with a restriction portion 23 that restricts rearward movement of the mounting panel 30 described later.
The restricting portion 23 is opposed to a second opening 3b, which will be described later, and is disposed in the vicinity of the guide portion 3d, the lower side wall of the left end side box portion 20 of the second opening 3b, and the second opening 3b. Are provided on the lower lateral wall of the right end side box portion 20 respectively.
As shown in FIG. 11, each restricting portion 23 includes a contact portion 23a extending vertically downward from the rear end of the lower lateral wall of the box portion 20, and a taper that moves downward from the lower end of the contact portion 23a toward the rear side. And a guide portion 23b. The front part of the contact part 23a is configured by a surface orthogonal to the front-rear direction.

As shown in FIGS. 4 to 6, the grill panel 3 is formed of a synthetic resin plate material having a substantially pentagonal shape when viewed from the front. The grill panel 3 includes a pair of left and right substantially rectangular first openings 3a with an emblem portion 22 therebetween, and a pair of left and right substantially bases formed at lower positions of the first openings 3a. The shape 2nd opening part 3b etc. are provided.
Since the grill panel 3 has a left-right symmetrical structure, the configuration of the right side portion will be mainly described below.
The first opening 3a is formed with a square-shaped guide 3c that extends horizontally from the entire end to the rear and introduces the traveling wind into the engine room (not shown). Therefore, when the vehicle travels, the traveling wind that has passed through the grille opening 1a, the decorating portion 2, and the pair of first opening portions 3a is introduced into the engine room to cool a radiator, a condenser (none of which are not shown), and the like. Guided to the object.

The second opening 3b is set to have an area smaller than that of the first opening 3a, and is configured such that the outer ends in the vehicle width direction are aligned. The upper end portion of the second opening 3b is provided at a position slightly higher than the lower lateral wall of the box portion 20 in which the restricting portion 23 is formed.
At the upper end of the second opening 3b, a guide 3d extending horizontally from the end to the rear is formed from one end to the other end in the vehicle width direction. The front end portion of the guide portion 3d and the lower end portion of the guide portion 3c are connected to the vehicle width direction outer side portion.
The second opening 3 b is closed by a mounting panel 30 that can be attached to and detached from the grill panel 3.

Next, the mounting panel 30 will be described.
The mounting panel 30 is made of a substantially trapezoidal synthetic resin plate material when viewed from the front, and the mounting panel 30 to which the sensor 4 is mounted constitutes a sensor unit.
Therefore, in the case of a normal specification vehicle in which the parking assist device is not set as an option, the mounting panel 30 to which the sensor 4 is not attached is attached to the grill panel 3.
As shown in FIGS. 4 and 7, the mounting panel 30 includes a main body 31 having substantially the same shape as the second opening 3 b, and a stepped flange projecting rearward from the upper end and both left and right ends of the main body 31. And a stepped flange portion 33 projecting forward from the lower end portion of the main body portion 31.

The main body 31 is formed in a panel shape and is formed so as to be flush with the surface portion of the grill panel 3 when the mounting panel 30 is attached to the grill panel 3.
As shown in FIGS. 8 and 10, a circular opening through which the cylindrical sensor 4 can be inserted is formed in the central portion of the main body 31, and a cylindrical portion 31 a extending rearward from the circular opening is formed. .
As a result, the engaging portion of the connector 41 to which the sensor 4 is mounted is engaged with the engaging portion formed on the cylindrical portion 31 a, and the sensor 4 protrudes slightly forward with respect to the main body portion 31. Fixed.

As shown in FIG. 7, the stepped flange portion 32 includes a protruding portion 32a protruding rearward from the upper end portion of the main body portion 31, a vertical wall portion 32b extending upward from the rear end portion of the protruding portion 32a, and the like. I have.
A pair of left and right insertion ports 32h through which the pair of left and right restricting portions 23 can be inserted in the vertical direction are formed in the overhanging portion 32a and the vertical wall portion 32b. The insertion port 32h is set such that the left-right dimension of the vertical wall portion 32b is larger than the left-right dimension of the overhanging portion 32a.
In the stepped flange portion 32, a pair of upper and lower screw S mounting holes 32s is formed at the left end portion, and a screw S mounting hole 32s is formed at the upper right end portion.
The stepped flange portion 33 includes an extension portion 33a extending downward from the left portion and an extension portion 33b extending downward from the right portion. A mounting hole 33s for the clip C is formed in each of the extension portions 33a and 33b.

Next, a procedure for assembling the mounting panel 30 to which the sensor 4 as the sensor unit is mounted will be described. In addition, the decoration part 2 and the grill panel 3 are already assembled | attached to the vehicle body.
First, a sensor unit is prepared in advance. The connector 41 to which the sensor 4 is attached and the harness 42 is connected is engaged with the cylindrical portion 31a of the main body 31 (see FIG. 7).
The attachment panel 30 is moved from the rear to the front so as to approach each restriction part 23 so that each restriction part 23 of the decoration part 2 is inserted through the insertion port 32h of the corresponding attachment panel 30.

Next, as shown to Fig.11 (a), after each control part 23 is inserted in the corresponding insertion port 32h, the panel 30 for attachment is moved toward upper direction from the downward direction.
Next, as shown in FIG. 11B, the main body portion 31 of the mounting panel 30 abuts on the guide portion 23 b of the restricting portion 23. As a result, the upward force acting on the main body 31 is converted into a force for moving the main body 31 forward, and the mounting panel 30 moves forward.

Furthermore, after continuing the forward movement of the mounting panel 30, as shown in FIG. 11C, the rear portion (rear side surface) of the main body portion 31 comes into surface contact with the front portion of the abutting portion 23a. It is arranged at an assembly position that is flush with the surface portion of the grill panel 3.
Then, the mounting panel 30 is fixed to the back surface of the grill panel 3 by the screws S inserted through the mounting holes 32 s and the clips C inserted through the mounting holes 33 s.

Next, operations and effects of the vehicle sensor mounting structure will be described.
According to the sensor mounting structure of this vehicle, since the mounting panel 30 that supports the sensor 4 and can be attached to and detached from the grill panel 3 is provided, the irradiation hole of the sensor 4 formed in the grill panel 3 and the sensor 4 itself are decorated. The portion 2 can be made inconspicuous, and the design of the vehicle can be improved. Since it has the control part 23 which extends back from the decorating part 2 and controls back movement of the panel 30 for attachment, by decorating the decorating part 2 by regulating the back displacement of the panel 30 for mounting on the basis of the decorating part 2 The accuracy of the positional relationship with the sensor 4 can be improved, and the detection area of the sensor 4 can be secured.

  The mounting panel 30 has a main body 31 that can support the sensor 4 and extends substantially orthogonal to the front-rear direction, and the restricting portion 23 has an abutting portion 23 a that abuts the back surface of the main body 31. By making the main body part 31 and the contact part 23a contact each other, the position in the front-rear direction of the mounting panel 30 can be accurately regulated with the decoration part 2 as a reference.

  Since the mounting panel 30 has a rear projecting stepped flange portion 32 that is fixed to the grill panel 3 via the screw S at the outer edge portion of the main body 31, the mounting panel 30 for the grill panel 3 with a simple configuration. The mounting workability can be improved.

  Since the insertion opening 32h through which the restricting portion 23 can be inserted in the vertical direction is formed in the stepped flange portion 32, the mounting panel 30 can be easily assembled to the grill panel 3 in the vertical direction.

  Since the stepped flange portion 32 is formed at the upper edge portion of the mounting panel 30, and the tapered guide portion 23b that converts the upward movement of the mounting panel 30 into the forward movement is formed at the lower end portion of the restricting portion 23, The panel 30 for attachment can be positioned with respect to the decoration part 2 in the front-back direction by assembling the panel 30 for the upper direction with respect to the grille panel 3.

  Since the decoration part 2 is comprised by the mesh member which has several vertical back opening box parts 20, even if it is the decoration part 2 comprised by the mesh member which has several vertical back opening box parts, design Compatibility with sensor performance.

Next, a modification in which the above embodiment is partially changed will be described.
1) In the above-described embodiment, the example in which the ultrasonic sensor is mounted on the front grille has been described. However, the sensor is not particularly limited as long as the detection range is expanded at least forward.
In addition, although an example in which two sensors are arranged on the bumper face and two sensors on the front grille has been described, the sensors arranged on the bumper face may be omitted, and two or more sensors may be arranged on the front grille. May be.

2] In the above-described embodiment, the example in which the attachment panel is attached to the grille panel from the bottom has been described. However, the attachment panel may be attached to the grille panel from above.
In this case, a restricting portion extending vertically upward from the upper side wall of the box portion is formed.

3] In the above-described embodiment, an example in which two restricting portions are provided for one second opening has been described. However, three or more restricting portions may be provided, or a single restricting portion may be provided. Also good.
In addition, when providing a some control part, it is preferable to provide a control part in the left-right both-ends vicinity position of the attachment panel.
In addition, the second opening (the main body of the mounting panel) has been described as having a trapezoidal shape, but it is sufficient that at least the sensor can be supported, and the shape is not particularly limited, such as a partial circle or rectangle.

3) In addition, those skilled in the art can implement the present invention by adding various modifications to the embodiments without departing from the spirit of the present invention, and the present invention includes such modifications. is there.

DESCRIPTION OF SYMBOLS 1 Bumper face 1a Grill opening 2 Decorating part 3 Grill panel 4 Sensor 20 Box part 23 Control part 23a Contact part 23b Guide part 30 Mounting panel 31 Main body part 32 Stepped flange part 32h Insertion port

Claims (6)

A bumper face formed with a grille opening, a decoration part formed so that running air can be introduced into the grille opening, a grille panel disposed on the rear side of the grille opening, and a detection region that expands forward. In a vehicle sensor mounting structure comprising a sensor having
A mounting panel that supports the sensor and is detachable from the grill panel;
A vehicle sensor mounting structure, comprising: a regulating portion that extends rearward from the decoration portion and regulates rearward movement of the mounting panel. The mounting panel has a main body that can support the sensor and extends substantially orthogonal to the front-rear direction;
The vehicle sensor mounting structure according to claim 1, wherein the restricting portion includes a contact portion that contacts the back surface of the main body portion.   The vehicle sensor mounting according to claim 2, wherein the mounting panel has a rear projecting stepped flange portion fixed to the grille panel via a fastening member at an outer edge portion of the main body portion. Construction.   The sensor mounting structure for a vehicle according to claim 3, wherein the stepped flange portion is formed with an insertion port through which the restriction portion can be inserted in the vertical direction. The stepped flange portion is formed on the upper edge portion of the mounting panel,
5. The vehicle sensor mounting structure according to claim 3, wherein a tapered guide portion that converts upward movement of the mounting panel into forward movement is formed at a lower end portion of the restricting portion. The vehicle sensor mounting structure according to any one of claims 1 to 5, wherein the decoration portion is configured by a mesh member having a plurality of vertically long rear open box portions.

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