JPH0172456U

JPH0172456U -

Info

Publication number: JPH0172456U
Application number: JP1987169161U
Authority: JP
Priority date: 1987-11-04
Filing date: 1987-11-04
Publication date: 1989-05-16

Description

[Brief explanation of the drawing]

第１図はこの考案を具体化して示す側面図、第
２図はその内部構造を示す平断面図、第３図はブ
レーキデイスク及び回転検出センサを示す斜視図
、第４図はこの考案の電気的構成を示す回路図、
第５図はこの考案の別例を示すブロツク図である
。車両……１、第１の検出手段として離席感知ス
イツチ……６及び座席感圧センサ……２８、ブレ
ーキ手段としてのパーキングレバー……４、第２
の検出手段としてのパーキング動作感知スイツチ
……６及びレバー感圧センサ……２９、可変容量
ポンプ……７、液圧モータとしての走行用油圧モ
ータ……９、走行輪……２１、第３の検出手段と
して回転検出センサ……２２、警報手段としての
ブザー……Ｂ_ｚ及び表示ランプ……Ｌ。 Fig. 1 is a side view embodying this invention, Fig. 2 is a plan cross-sectional view showing its internal structure, Fig. 3 is a perspective view showing the brake disc and rotation detection sensor, and Fig. 4 is an electrical diagram of this invention. A circuit diagram showing the configuration of
FIG. 5 is a block diagram showing another example of this invention. Vehicle: 1. Seat-off detection switch as first detection means: 6 and seat pressure sensor: 28. Parking lever as braking means: 4. Second
Parking operation detection switch as a detection means...6 and lever pressure sensor...29, variable displacement pump...7, hydraulic motor for travel as a hydraulic motor...9, running wheel...21, third A rotation detection sensor...22 serves as a detection means, a buzzer... _Bz serves as an alarm means, and an indicator lamp...L.

Claims

[Claims for Utility Model Registration] A hydraulic motor rotatably driven by hydraulic oil supplied from a variable displacement pump and rotating a running wheel, and a brake means for stopping and holding the running wheel. In an industrial vehicle, a first detection means detects that a worker is away from a driver's seat of the vehicle; a second detection means detects that the brake means is in a stop operation position; and the liquid a third detection means for detecting that the amount of rotation of the pressure motor exceeds a predetermined value; and based on the detection operation of at least one of the first and second detection means and the detection operation of the third detection means. A parking brake device for an industrial vehicle, comprising: an alarm means for performing an alarm operation.