JPH0195687U

JPH0195687U -

Info

Publication number: JPH0195687U
Application number: JP19113287U
Authority: JP
Priority date: 1987-12-16
Filing date: 1987-12-16
Publication date: 1989-06-23

Description

[Brief explanation of the drawing]

第１図は測定波として超音波を用いた実施例を
示す斜視図、第２図はその縦断面図及びブロツク
図、第３図は他の実施例の一部を破断して示す図
、第４図はさらにホーンの形状を変えた実施例を
示す図、第５図は赤外線を用いた実施例を示す図
、第６図は従来例を示す図である。１……リアスポイラ、２……車体、５，５ａ，
５ｂ，５ｃ，５ｄ……ホーン、６……トランスデ
ユーサ、１３……蓋、１６……赤外線ランプ、１
８……受光器。 Fig. 1 is a perspective view showing an embodiment using ultrasonic waves as the measurement wave, Fig. 2 is a vertical sectional view and block diagram thereof, Fig. 3 is a partially cutaway view of another embodiment, FIG. 4 shows an embodiment in which the shape of the horn is further changed, FIG. 5 shows an embodiment using infrared rays, and FIG. 6 shows a conventional example. 1... Rear spoiler, 2... Vehicle body, 5, 5a,
5b, 5c, 5d...horn, 6...transducer, 13...lid, 16...infrared lamp, 1
8... Light receiver.

Claims

[Scope of Claim for Utility Model Registration] (1) A flat rear spoiler installed almost horizontally at the rear of the vehicle body includes a transmitter that emits measurement waves toward the rear, and a transmitter that emits measurement waves reflected from the object to be measured. A rear obstacle detector characterized in that it has a built-in receiver. (2) The transmitter and receiver include a transducer built into the rear spoiler, and a horn whose inner end is connected to the transducer and whose outer end opens at the rear surface of the rear spoiler. A rear obstacle detector according to claim 1, characterized in that the rear obstacle detector comprises: (3) The rear obstacle detector according to claim 2, wherein the opening of the horn can be opened and closed.