JPS62115207A - Alarm lamp putting on/off apparatus in abnormality alarm of combine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention detects various abnormalities such as engine overheating in a combine harvester using various detectors such as a thermometer, and detects the abnormality in the cab. The present invention relates to a device for checking in advance whether or not a warning lamp is burnt out in an abnormality alarm device that lights up a warning lamp.

(Conventional technology) If a warning lamp burns out, even if an abnormal situation occurs on the combine harvester, the lamp will not light up and the operator will not be able to detect the abnormality. A switch was installed for this purpose, and when the switch was pressed, power was applied to all the lamps, and if any lamps did not light up, they were replaced with new ones.

(Problem to be solved by the invention) However, in the past, this inspection switch was installed separately and independently from other operating devices, so inspection work was often forgotten.
Burned-out warning lamps were often overlooked.

In view of these circumstances, it is an object of the present invention to make it possible to operate a lamp inspection switch using the engine start switch knob of a combine harvester, thereby making it possible to perform inspection work before operation without forgetting.

(Means for Solving the Problems) In order to achieve the above object, the present invention connects various abnormality detectors installed on the combine harvester to alarm lamps installed on the driver's cab, and detects when an abnormality occurs. In the abnormality alarm device for a combine harvester that issues an alarm by lighting a predetermined alarm lamp, a lamp inspection switch that lights up all of the warning lamps at once is opened and closed by the knob of the engine start switch of the combine harvester.

(Function) That is, in the present invention, the simultaneous inspection of the warning lamps is related to the operation of the engine start switch, and the engine start switch knob is operated prior to starting the engine.

(Example) Hereinafter, a case where an example of the present invention is applied to a combiner will be described with reference to the drawings.

In FIG. 1, Ll-LIO are various warning lamps arranged on the instrument panel of the cab of the combine harvester.

The alarm lamps L1 to LlO have one terminal commonly connected and also connected to the positive power line ■ via the engine start switch SW of the combine harvester, and the other terminal is an input that operates when an alarm signal is input. Contact X1
- Connect to the negative power supply line e via X7 or the like. As the alarm signals input to the input contacts X1 to X7, signals obtained from sensors and various switches that detect abnormal states of various parts of the combine harvester are used.

Each terminal on the negative power supply θ side of the alarm lamp LL-LIO is connected to the anode of the corresponding diode D1 to DIO, and the cathode of each of the diodes D1 to DIO is connected in common, and the common connection is used to start the engine. It is connected to the negative power supply line θ via a lamp inspection switch consisting of contacts a and b of the switch Sw.

The engine start switch SW has contacts c-)L as shown in Fig. 1 in addition to contacts a and b constituting the switch for lamp inspection, and as shown in Fig. 2, there are contacts on the mounting panel. Displays various functions and turns them SW
The configuration is such that various functions can be selected by operating a. Therefore, the contacts a to h of the engine starting switch SW are electrically connected as shown in FIG. 3 depending on the selected function.

Furthermore, in this embodiment, as shown in FIG.
, a generator G, a glow controller GC, a starter coil S, a blinking unit BL of a one-way direction indicator on the horn, etc. are arranged.

In such a configuration, before starting the engine, if the operator sets the knob SW a of the engine start switch SW from the rOFFJ position to the ``Check for 1 bulb breakage'' position as shown in Figure 2, the bulb breakage will be detected. The state is checked. When the engine start switch SW is set in this way, as shown in Figure 3, the contacts a and b connected to ``check one bulb out'' are connected to each other, and the contacts c, d, and g connected to ``ON'' are connected to each other. be done.

Therefore, the positive power line (■) connects the mutually connected contacts gt of the engine ttftD switch SW, the mutually connected contacts gt C1 alarm lamps L1 to LIO, the diodes D1 to D10, and the mutually connected contacts a and b of the engine start switch SW.
It is connected to the negative power supply line e via.

As a result, if the alarm lamps Ll-LIO are all normal, current flows through all of the alarm lamps Ll-LIO and they light up, so the operator knows that all the alarm lamps Ll-LIO are normal. On the other hand, the alarm lamp Ll-LIO
If one of the lamps is burnt out, only that warning lamp will be turned off, so you can simply replace the burnt-out lamp with a new one.

Next, in order to start the engine, turn the knob SW of the engine start switch SW from the "Check for one bulb out" position to the rOFFJ position, and then set it to the "Glow ONJ" position, and the glow controller GC etc. The circuit operates.Furthermore, the engine starting switch S
When the W knob S W a is set to the "Start" position and the engine is started, the knob returns to the "Glow ONJ" position.

When the engine is started in this manner, the contacts c, d, and g of the engine start switch SW are connected to each other. Therefore, for example, when a sensor that detects the presence or absence of a string to tie threshed straw outputs an alarm signal indicating that there is no string, for example, if the input contact x2 is closed by that alarm signal, the corresponding alarm lamp L4 is turned on. It will light up and this alarm display will let you know that the string is singing.

In this way, in this embodiment, when checking for ball breakage, the second
As shown in the figure, turn the knob SW of the engine start switch SW.
A was set at the leftmost "ball breakage check" position, but instead of this, as shown in Figure 4,
If you set up a function display for "Check for out of bulb" between rOFFJ and "ON" or between "ON" and "Start" and configure the corresponding electrical circuit, you can check for out of bulb during the process of starting the engine. This makes inspection operations easier.

(Effects of the Invention) As explained above, according to the present invention, the switch for inspecting the lamp can be operated by the knob of the engine start switch of the combine, so it is possible to perform the inspection work without forgetting before operation. can.

[Brief explanation of drawings]

Figure 1 is a circuit diagram of an embodiment of the present invention, Figure 2 is a diagram showing the function display of the engine start switch, Figure 3 is a diagram showing the connection state of each contact according to each function of the engine start switch, and Figure 4 is a diagram showing the connection state of each contact according to each function of the engine start switch. The figure is an explanatory diagram of another embodiment of the present invention. L1 to LlO are alarm lamps, DI-DIO is a diode, Xl-X7 is an input contact, sw is an engine start switch, and SW a is a knob. Patent Applicant Iseki Agricultural Machinery Co., Ltd. Agent Toshibe Maki (and 2 others) Figure 1 Sip” Figure 3 Figure 2 Figure 10 Wa

Claims (1)

[Scope of Claims] In an abnormality alarm system for a combine harvester, in which various abnormality detectors installed on the combine harvester are connected to alarm lamps provided on the driver's cab, and when an abnormality occurs, a predetermined alarm lamp is lit to give an alarm. An alarm lamp inspection device in which a lamp inspection switch for lighting all of the alarm lamps at once is opened and closed by an engine start switch knob of a combine harvester.