JPH0930348A - Structure for installing ultrasonic sensor in vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To install an obstacle detecting device in a vehicle without injuring the vehicle, and relatively simply, in the installing of an obstacle detecting device for vehicle to a vehicle. SOLUTION: In this installing structure of a detecting sensor for vehicle, an ultrasonic sensor 3 is installed to the head 8a of a number plate fixing member 8 in a vehicle, a through hole 10 communicating to the inside of the vehicle is provided at the bottom of a recess 9, a lead wire 11 is inserted to the through hole 10 and connected to a detecting circuit in the vehicle, as well as the ultrasonic sensor 3 is installed in the recess 9. And in this installing structure of the detecting sensor for vehicle, the number plate fixing member 8 is composed of a bolt 13 and a nut 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting an ultrasonic sensor in a vehicle obstacle detector using ultrasonic waves to a vehicle.

[0002]

2. Description of the Related Art Conventionally, in an obstacle detector for a vehicle using an ultrasonic sensor, the ultrasonic sensor housed in a housing is used as a means for attaching the ultrasonic sensor to the outer peripheral portion of the vehicle by means of a double-sided adhesive tape. There is a method of sticking to the outer periphery. In this method, as the adhesive strength of the double-sided tape deteriorates with time, it may fall off due to vibration during vehicle running.

As a means for tackling the above problems, bumper 1 as shown in FIGS. 2 and 3 is used.
There is a means for opening the hole 1a in the hole, inserting the ultrasonic sensor 3 housed in the housing 2 into the hole 1a, and fixing the ultrasonic sensor 3 with the C-shaped stopper 4 so as not to fall out.

This means will be briefly described with reference to FIGS.
As shown in FIG. 1, a hole 1a for mounting the ultrasonic sensor 3 housed in the cylindrical housing 2 is provided in the bumper 1, and the ultrasonic sensor 3 is inserted into the hole 1a from the back side of the bumper 1 to the outer surface of the body of the housing 1. The slit 5 provided on the bumper 1
The C-shaped stopper 4 is inserted into and fixed to the slit 5, and the stopper 4 further uses the screw hole 6 provided in the bumper 1 to secure the bumper with the set screw 7. It is fixed to 1.

[0005]

However, in the conventional mounting means, in the case of the means using the double-sided tape, as the adhesive force deteriorates with time as described above, the vibration during vehicle running is affected. There is a problem that the ultrasonic sensor falls off due to being unable to hold, and even if the ultrasonic sensor is attached to any place on the outer periphery of the vehicle body, the lead wire 11 extending from the ultrasonic sensor is not It is necessary to provide a drawing hole in the body 15 of the vehicle for guiding the inside of the luggage compartment 16.

Further, in the case of the means shown in FIGS. 2 and 3, the hole 1a for mounting the ultrasonic sensor and the screw hole 6 for the set screw 7 are formed in the bumper 1, the body 15 of the vehicle, or other parts. It must be provided on the outer periphery. Since there are many users who do not want to install the obstacle detection device for vehicles,
It is not attached from the beginning when the vehicle is manufactured, but it is often attached at the time of purchase of the vehicle or after purchase according to the wishes of the user, so holes etc. for attaching these ultrasonic sensors to the vehicle are not provided. In many cases, it is not provided at the time of manufacturing the vehicle due to problems in appearance and cost.

Therefore, it is necessary to carry out the processing work and the mounting work for making these holes 1a for mounting these ultrasonic sensors on the vehicle at the shop or by the user himself. It is annoying.

[0008]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and when the vehicle obstacle detecting device is to be attached to the vehicle at the time of or after the purchase of the vehicle. In addition, the object of the present invention is not to require the troublesome work of making a hole for attaching the ultrasonic sensor to the vehicle, and to attach the ultrasonic sensor to the vehicle relatively easily.

That is, according to the first aspect of the present invention, the ultrasonic sensor 3 is fitted in the head portion 8a of the license plate fixing member 8 in the vehicle, and the through hole 10 communicating with the inside of the vehicle is provided in the inner portion of the concave portion 9. This is a mounting structure for a vehicle ultrasonic sensor in which the ultrasonic sensor 3 is fitted in the recess 9 and the lead wire 11 is passed through the through hole 10 and connected to a detection circuit in the vehicle.

A second aspect of the present invention is a vehicle ultrasonic sensor mounting structure as set forth in claim 1, wherein the license plate fixing member 8 comprises a bolt 13 and a nut 14.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing an embodiment of a mounting structure of an ultrasonic sensor according to a vehicle obstacle detection device of the present invention. Reference numeral 8 is a bolt 13 as a typical example of a license plate fixing member and its head 8a. A concave portion 9 is formed in the concave portion 9, and a through hole 10 is provided in the inner portion of the concave portion 9, that is, in the center of the screw shaft of the bolt 13.

Then, ultrasonic waves are transmitted to the recess 9,
An ultrasonic sensor 3 for measuring the distance from the obstacle by receiving the reflected wave of the ultrasonic wave from the obstacle.
The lead wire 11 is inserted into the through hole 10 and connected to the detection circuit 12 in the vehicle.

Reference numeral 15 in the drawing denotes a rear body of the vehicle, which has a trunk room 16 inside. A number frame 17 is fixed to the outer surface of the body 15, and a number plate 19 is fitted into the number frame 17. Be done. Reference numeral 8 denotes a bolt 13 for fixing the license plate 19 of the body 15 and a nut 14 for screwing with the bolt 13 welded and fixed to the inner surface of the insertion hole 18. The nut 14 is provided with the ultrasonic sensor 3. Bolt 13
However, the number plate 19 is screwed and fixed from the outside.

[0014]

As described above, in the present invention, the license plate fixing member 8 which is indispensable for any vehicle is used,
Since the ultrasonic sensor 3 is fitted into the head portion 8a, the lead wire 11 is passed through the through hole 10 and guided into the body 15 of the vehicle so as to be connected to the detection circuit 12, the body 15 of the vehicle is newly provided. The ultrasonic sensor 3 can be attached easily and easily without the need for troublesome work such as processing work for making a mounting hole in the. Therefore, the ultrasonic sensor can be easily attached at the time of purchasing the vehicle or after purchasing the vehicle, and there is no fear that the ultrasonic sensor may fall off due to vibration during traveling of the vehicle.

[Brief description of drawings]

FIG. 1 is a sectional view showing a mounting structure of an ultrasonic sensor according to the present invention to a vehicle.

FIG. 2 is a perspective view showing a configuration before mounting a conventional ultrasonic sensor.

FIG. 3 is a perspective view showing a form in which a conventional ultrasonic sensor is being attached.

[Explanation of symbols]

1 bumper 11 lead wire 1a hole 12 detection circuit 2 housing 13 bolt 3 ultrasonic sensor 14 nut 4 stopper 15 body 5 slit 16 trunk room 6 screw hole 17 number frame 7 set screw 18 insertion hole 8 number plate fixing member 19 number plate 8a head Part 9 Recess 10 Through hole

Claims (2)

[Claims] 1. An ultrasonic sensor is fitted to a head portion of a license plate fixing member in a vehicle, a through hole communicating with the inside of the vehicle is provided in a deep portion of the recess, and the ultrasonic sensor is fitted in the concave portion and a lead wire. Through the through hole,
Mounting structure for a vehicle ultrasonic sensor connected to the detection circuit inside the vehicle. 2. The mounting structure for a vehicle ultrasonic sensor according to claim 1, wherein the license plate fixing member is a bolt and a nut.