JPH026398U

JPH026398U -

Info

Publication number: JPH026398U
Application number: JP8409288U
Authority: JP
Priority date: 1988-06-25
Filing date: 1988-06-25
Publication date: 1990-01-17
Anticipated expiration: 2003-06-25
Also published as: JPH0610478Y2

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す斜視図、第２
図は第１図に係る実施例の動作回路を示すブロツ
ク図、第３図１，２は各々第１図の実施例を作業
員が着用した場合の状況を示す説明図、第４図１
，２は作業員の作業姿勢の例を示す説明図、第５
図１，２は第１図における収納ケースの他の例を
示す説明図、第６図１は第１図における超音波送
波器の取付位置における他の例を示す斜視図、第
６図２は第６図１の動作状況を示す説明図、第７
図は第２実施例を示すブロツク図、第８図は第７
図の動作状態を示す説明図である。１Ａ……ベルト本体、５ａ，５ｂ，５ｃ，５ｄ
，５ｅ，５ｆ……超音波送受波器、５_１〜５_ｎ…
…超音波送受波器、４１Ａ〜４１Ｃ……超音波送
受波器、５０……励振回路、５１……電源回路、
５２……スイツチ回路。 Fig. 1 is a perspective view showing one embodiment of the present invention;
The figure is a block diagram showing the operating circuit of the embodiment according to Fig. 1, Figs. 3 1 and 2 are explanatory diagrams showing the situation when a worker wears the embodiment of Fig. 1, and Fig. 4 1.
, 2 is an explanatory diagram showing an example of a worker's working posture;
1 and 2 are explanatory diagrams showing other examples of the storage case in FIG. 1, FIG. 6 1 is a perspective view showing another example of the mounting position of the ultrasonic transmitter in FIG. 1, and FIG. 6 2 6 is an explanatory diagram showing the operating status of 1, and 7
The figure is a block diagram showing the second embodiment, and FIG.
FIG. 3 is an explanatory diagram showing the operating state of the figure. 1A...Belt body, 5a, 5b, 5c, 5d
, 5e, 5f... Ultrasonic transducer, 5 ₁ to 5 _n ...
...Ultrasonic transducer, 41A to 41C... Ultrasonic transducer, 50... Excitation circuit, 51... Power supply circuit,
52...Switch circuit.

Claims

[Claims for Utility Model Registration] (1) A belt body, an ultrasonic transmitter attached to at least the back side of the belt body, an excitation circuit for driving this ultrasonic transmitter, and an excitation circuit for driving this ultrasonic transmitter. A waist belt device for an alarm device, comprising: a power supply circuit. (2) A belt body, a plurality of ultrasonic transmitters attached to at least the back side of the belt body, an excitation circuit for driving each of the ultrasonic transmitters, and a power supply circuit for the excitation circuit. At least one of the ultrasonic transmitters is provided with an ultrasonic output surface facing directly behind when in an upright position, and at least the other one is configured to emit ultrasonic waves downwardly when in an upright position. A waist belt device for an alarm device, characterized by being provided with an output surface. (3) The belt comprises a belt body, an ultrasonic transmitter attached to the back side of the belt body, an excitation circuit for driving the ultrasonic transmitter, and a power supply circuit for the excitation circuit. A waist belt device for an alarm device, characterized in that the belt main body portions located on both sides of the worker wearing the main body are each equipped with an ultrasonic transmitter. (4) A belt body, an ultrasonic transducer attached to at least the back side of the belt body, an excitation circuit for driving the ultrasonic transducer, and a power supply circuit for the excitation circuit, Equipped with automatic switching means between the ultrasonic transducer and the excitation circuit, which normally sets the ultrasonic transducer to reception mode and immediately switches to transmission mode when a signal of a predetermined frequency is received from the outside. A waist belt device for an alarm device, characterized by: (5) The excitation circuit has a function of outputting an excitation signal of a frequency different from the frequency of the received ultrasonic waves to excite the ultrasonic transducer, and the excitation circuit includes a 5. The waist belt device for an alarm device according to claim 4, further comprising an alarm device that operates simultaneously.