JPS5962567U

JPS5962567U - Ultrasonic object detection device

Info

Publication number: JPS5962567U
Application number: JP15857682U
Authority: JP
Inventors: 健一郎新美; 森田　喜久蔵
Original assignee: 株式会社日立ホームテック
Priority date: 1982-10-20
Filing date: 1982-10-20
Publication date: 1984-04-24

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は従来の超音波物体検出装置と検知物体の断面上
面図、第２図は同超音波物体検出装置の指向性を示すグ
ラフ。第３図は本考案の一実施例　　−を示す超音波物
体検出装置の検知物体の断面上面図、第４図は同超音波
物体検出装置の指向性を示すグラフである。２・・・・・・検知部表面、３・・・・・・検知物体、
４・・・・・・超音波緩衝帯、５・・・・・・吸音体、
６・・・・・・超音波発信素子、９・・・・・・超音波
受信素子、１３・・・・・・放射指向中心軸、−１４・
・・・・・受波指向中心軸、θ・・・・・・開角度。FIG. 1 is a cross-sectional top view of a conventional ultrasonic object detection device and a detected object, and FIG. 2 is a graph showing the directivity of the ultrasonic object detection device. FIG. 3 is a cross-sectional top view of a detected object of an ultrasonic object detection device showing an embodiment of the present invention, and FIG. 4 is a graph showing the directivity of the ultrasonic object detection device. 2... Sensing part surface, 3... Sensing object,
4... Ultrasonic buffer band, 5... Sound absorber,
6... Ultrasonic transmitting element, 9... Ultrasonic receiving element, 13... Radiation directional central axis, -14.
・・・・・・Center axis of received wave direction, θ・・・Opening angle.

Claims

[Scope of utility model registration request]

A pair of ultrasonic transmitting elements and an ultrasonic receiving element directed towards the sensing object are provided inside the detecting unit case, and an ultrasonic emitting unit and an ultrasonic receiving unit are provided on the detecting unit surface of the detecting unit case in correspondence with the elements. In the ultrasonic object detection device described above, an ultrasonic buffer band 4 formed in a triangular ridge shape on the detection part surface 2 and a sound absorber 5 covered on the surface of this ultrasonic buffer band 4 are provided. The central axes 13 and 14 of the radiation/reception directions of the ultrasonic transmitting element 6 and the ultrasonic receiving element 9 located on both sides of the band 4 have an opening angle θ such that they relatively expand toward the sensing object 3. An ultrasonic object detection device characterized in that it is provided with:
−