JPS5941336Y2 - Tilt cab type automobile sub starter device - Google Patents

Description

[Detailed description of the invention] This invention relates to a sub-starter device that can easily start and stop the engine when the cab is tilted from its normal position to the forward-tilted position in so-called tilt-cab automobiles in which the cab is tiltable with respect to the chassis. It is something.

Generally, in this type of tilt-cab type vehicle, engine maintenance and inspection work is performed by tilting the cab, but if the engine is to be started or stopped during this work, the cab must be returned to its normal position and the cab tilted. You have to operate the key switch inside, which is very cumbersome.

Therefore, in order to be able to start the engine directly from inside the engine room, as disclosed in, for example, Japanese Utility Model Application Publication No. 49-114335, the key switch is exposed when the cab is tilted and is used to start the engine separately from the above-mentioned key switch. It may be possible to eliminate the above trouble by providing a sub-starter switch that supplies power to the starter starter, but in this case, the sub-starter switch may interfere with other parts while returning the cab to its non-tilting state. Therefore, it must not be turned on by mistake, and there is a concern that the mounting structure of the substarter switch will become extremely complicated, such as covering the substarter switch with a cover.

In addition, if the sub starter switch is used to energize the equipment that prepares the engine to start at the same time as the starter Tanabata, the equipment will continue to be energized unless the sub starter switch is turned off after engine maintenance and inspection work. , there is a concern that the battery may become over-discharged.

In view of the above-mentioned prior art, this invention solves the above-mentioned concern 4 by automatically holding the substarter switch in the OFF position by either the cab or the chassis by returning the cab to its normal state by the switch knob of the substarter switch. It is something.

Embodiments of this invention will be described below with reference to the drawings.

In FIG. 1, 1 is a chassis, and 2 is a tilt-type cab.
It is tiltably mounted on the bottle 3 via the bottle 3, and is tilted from the normal position shown by the dashed line in FIG. 1 to the forward tilted position shown by the solid line.

4 is a sub-starter switch, which is indicated by a solid line in the figure.
It has a switch knob 4a that is stroked upward from the f position to a first pull operation position 1 and a second pull operation position (2) shown by broken lines, and opens and closes contacts 4b and 4c, which will be described later.

This switch 4 is fixed to the chassis 1Vc so that its switch knob 4a protrudes toward the bottom surface of the cab 2.

Therefore, switch Noah' of substarter switch 4
4a comes into contact with the bottom surface of the cab 2 when the cab 2 is returned to the normal position indicated by the dashed line in the drawing, and its upward stroke in the pulling operation direction is blocked and is also suppressed to the OFF position.

On the other hand, in FIG. 2, reference numeral 4 is the above-mentioned sub-starter switch, and when the movable contact 4a is attached to the switch knob 4a, the fixed contact is connected to the fixed contact via the movable contact 4a' when the switch knob 4a is in the first-stage operation position I or above. A fixed contact 4b is connected to the fixed contact 4d, and a fixed contact 4c is connected to the fixed contact 4d via the movable contact 4a' when the switch knob 4a is in the two-stage pull operation position (2).

5 is a key switch installed inside the cab 2,
As is well known, it has a movable contact 5a, an ignition contact 5b, and a starter contact 5c.

Reference numeral 6 indicates an engine (not shown): equipment for setting the engine in a starting state; 1 is a starter starter for starting the engine; and 8 is a battery.

The movable contact 5a of the key switch 5 is connected to the battery 8, the ignition contact 5b is connected to the device 6 whose one end is grounded, and the starter contact 5c is connected to the starter 7 whose one end is grounded.
They are respectively connected to the other ends of the starter 1 and control the supply of electricity to the equipment 6 or the starter 7.

and a fixed contact 4b of the sub-starter switch 4,
4d is a fixed contact 4 which is connected in parallel to the ignition contact 5b and the movable contact 5a of the key switch 5, and forms a sub-ignition contact for controlling the energization of the device 6-\.
Numerals c and 4d are connected in parallel to the starter contact 5c and the movable contact 5a of the key switch 5, and serve as sub-starter contacts for controlling the supply of electricity to the starter Tanabata 7.

Note that the device 6 is an ignition coil in the case of a gasoline engine, and is an electric device that intermittents the supply of fuel in the case of a diesel engine.

Next, the operation of the substarter device configured as described above will be explained.

When cab 2 is tilted to the forward tilted position shown by the solid line in Figure 1,
A switch knob 4a of the substarter switch 4 is exposed near the engine.

Therefore, in order to tilt the cab 2 and start the engine during engine maintenance and inspection work, pull the switch knob 4a of the substarter switch 4 and first stroke it to the first pull operation position, which will cause the subignition contact to be activated. The fixed contacts 4b and 4d are closed to energize the device 6, and then when stroked to the second pull operation position, the fixed contacts 4c and 4d, which are sub-starter contacts, are closed and energized to the starter motor 7, making it easy to start the engine. can be started.

Furthermore, in order to stop the engine, the switch knob 4a may be stroked in the opposite direction to that described above.

On the other hand, when the cab 2 is returned to the normal position shown by the one-dot chain line in FIG. It is pressed against the bottom of the cab 2 and automatically shifts to the Off position and maintains that state thereafter.

Therefore, the switch knob 4a cannot be stroked upward, and the contacts 4b and 4c of the substarter switch 4 are kept open, thereby preventing the device 6 from continuing to be energized.

Note that starting and stopping the engine using the key switch 5 is the same as in the past, so a description thereof will be omitted.

Note that the sub starter switch 4 may be attached to the bottom of the cab 2 instead of the above embodiment, and the sub starter switch 4 may be attached to the bottom of the cab 2.
may be suppressed via a pressing piece attached to the cab 2 or chassis 1.

As explained above, this invention prevents the switch knob of the substarter switch mounted on either the cab or the chassis from moving in the direction of pulling operation in the Telt-V Yahu type automobile, and prevents the substarter switch from returning to the normal position of the cab 2. Since the substarter switch is automatically held in the OFF state when the engine returns, there is no possibility of the substarter switch being operated erroneously while the cab is in its normal state, and there is no need for a cover to prevent this erroneous operation. Therefore, the above-mentioned conventional drawbacks can be completely eliminated.

Furthermore, when the sub-starter switch is provided with a sag ignition contact as in the embodiment, it is possible to prevent the sub-ignition contact from inadvertently energizing the device.

[Brief explanation of the drawing]

The figures show one embodiment of this invention, with Fig. 1 being a side view of a tilt cab type automobile, and Fig. 2 being a circuit diagram. 1...Chassis, 2...Cab, 4...
...Sub starter switch, 5...Key switch, 6...Equipment, I...Starter.

Claims (2)

[Scope of utility model registration request] (1) -V-Yap can be tilted freely with respect to the chassis)-
? A sap starter having a sub-starter contact connected in parallel with a starter contact of a key switch that controls energization to a starter starter that starts an engine in a Yap type automobile, and a switch knob that closes the sub-starter contact by pulling the sub-starter contact. - the substarter switch is installed on either the cab or the chassis at a position where the switch knob protrudes toward the other and is exposed when the cab is tilted forward; A sub-starter device for a tilt-cab type automobile, characterized in that when the cab returns to its normal position, the stroke of a switch knob in the direction of a pull operation force is blocked by the other hand, and a sub-starter contact is maintained in an open state. (2) The sub-starter switch has a sub-ignition contact connected in parallel with the ignition contact of the key switch that turns on the power to the equipment that prepares the engine to start. 2. The sub-starter device for a tilt cab type automobile according to claim 1, wherein an operating position for closing the sub-ignition contact is provided between an operating position for closing the starter contact.