JPS609416Y2 - Substarter switch for tilt cab vehicle - Google Patents

Description

[Detailed description of the invention] This invention relates to a sub-starter switch for a tilt cab vehicle.
The front part of the floor is tiltably supported on the frame 2 via a cabin hinge 3, and the rear part of the floor is removably supported by a rear cab mount 4. When performing maintenance or inspection, the cabin 1 is separated from the rear cab mount 4 by operating the operating lever 6, and the cabin 1 is tilted forward using the cabin hinge 3 as a fulcrum as shown in the figure.

At this time, the sub-starter switch 7 is arranged near the rear of the engine room 5 where it can be easily operated so that the engine can be started with the cabin 1 tilted.

Conventionally, the sub-starter switch 7 includes a switch 9 for operating a fuel pump 8, as shown in the circuit diagram of FIG.
It is configured integrally with a switch 11 that operates the starter motor 10.

The sub starter switch 7 is manually operated from the OFF position to the ■ position where the fuel pump operation switch 9 is turned on, from the ■ position to the ■ position where the starter motor operation switch 11 is turned on, and from the above ■ position to the OFF position. In order to facilitate manual operation, the sub starter switch 7 is mounted on the frame 2 near the rear of the engine compartment 5 and near the mounting position of the rear cab mount 4, as described above. There is.

In Fig. 2, 12 is a key switch provided in parallel with the sub-starter switch 7, 13 is a key switch provided in series with the sub-starter switch 7, and when the gear is in the shift position, the starter motor 1
This is a neutral switch to prevent 0 from operating.

As described above, if the substarter switch is installed near the rear of the engine room and on the chassis side near the rear cab mount installation position for ease of operation, the cabin 1 will be supported by the frame 2 at the front, and the rear cab mount will be mounted at the rear. 4 is attached to the frame 2 via a mounting rubber (not shown), there is a lot of vibration near the rear of the engine room 5, which affects the substarter switch 7, resulting in poor switch durability. was there.

In addition, since the sub-starter switch 7 is integrated with the fuel pump operation switch for two-stage switching, the structure is complicated, and if the switch becomes loose, the switching operation becomes unreliable.

This invention aims to solve the above-mentioned problem, and includes a separate switch for activating the traps necessary for starting, such as the fuel pump, and a sub-starter switch for activating the starter motor. The switch is placed near the cabin hinge where there is less vibration for durability.
In addition, since it is difficult to operate near the cabin hinge, the fuel pump switch is automatically turned on when the cabin tilts forward, and the substarter switch is designed to have a simple configuration that is less likely to malfunction. The present invention provides a sub-starter switch for a tilt cab vehicle, which is characterized in that it is disposed on the vehicle chassis side near the rear of the engine room.

Hereinafter, this invention will be explained in detail with reference to embodiments shown in FIG. 3 and below.

A sub-starter switch 15 for operating a starter 10 in a tilt cab vehicle in which a cabin 1 is swingably supported at the front via a cabin hinge 3 on a frame 2, and detachably supported at the rear on a rear cab mount 4. is attached to the frame 2 near the rear part of the engine room 5, near the mounting position of the rear cab mount 4.

On the other hand, a fuel pump operating switch 16 for operating the fuel pump 8 is attached to the frame 2 near the cabin hinge 3.

Note that the switch 16 is not limited to the fuel pump 8, and may also be a switch that operates other traps necessary for starting the engine.

The sub starter switch 15 and the fuel pump operation switch 16 are connected to the power supply in parallel with the key switch, as shown in FIG.
is provided in series with the neutral switch 13.

The sub-starter switch 15 is always in the OFF position, and when the cabin 1 is tilted forward, the switcher 15a is manually raised to turn it on. When the cabin 1 is returned to the horizontal position, the switcher 15 is turned on. It is designed to automatically lower and return to the OFF position.

Specifically, as shown in FIG. 5, the fuel pump operation switch 16 is constructed by installing a fuel pump operation switch 16 consisting of a limit switch protruding downward near the hinge bracket 20 of the cabin floor frame 19. ,
A switch holding plate 22 is attached to a hinge bracket 21 protruding from the frame 2, and when the cabin 1 is horizontal as shown by the solid line in the figure, the switch 16 is in contact with the switch holding plate 22 and is in the OFF state. As shown by the chain line, when the cabin 1 is tilted forward, the switch 16 moves away from the switch holding plate 22 and is automatically turned on.

The sub starter switch 15 is shown in FIGS. 6 and 7.
As shown in the figure, it is attached to the frame 2 near the attachment position of the rear cab mount 4, but it may be attached to the engine itself or any other appropriate vehicle chassis side member as long as it is at a position that is easy to operate.

In FIGS. 6 and 7, 23 is a mounting bracket protruding from the frame 2, 24 is a mount rubber, and 25 is an eye bolt.

As mentioned above, if the manually operated substarter switch 15 is placed near the rear of the engine room where it can be easily operated when the cabin 1 is tilted forward, operability will not be impaired, and the substarter switch will operate the fuel pump as before. Since it is not formed integrally with the switch, the structure is simple, and therefore the influence of vibration is small and durability is improved.

On the other hand, the fuel pump operation switch is located near the cabin hinge in the front of the engine room where there is less vibration, which improves the durability of the switch, and the switch is automatically turned on when the cabin is tilted forward. Therefore, there is no need for manual operation, which has the advantage that operability is not impaired.

[Brief explanation of the drawing]

Figure 1 is a front side view of a tilt cab vehicle showing a conventional example;
Figure 2 is a circuit diagram of a conventional sub-starter switch, Figure 3 is a side view showing an embodiment of this invention, Figure 4 is a circuit diagram of a sub-starter switch of this invention, and Figure 5 is a fuel pump operating switch. FIG. 6 is a side view showing a mounting part of the sub-starter switch, and FIG. 7 is a sectional view of FIG. 6. 1...Cabin, 2...Frame, 3
...Cabin hinge, 4...Rear cab mount, 5...Engine compartment, 8...
...Fuel pump, 10...Starter motor,
12...Key switch, 13...Neutral switch, 15...Sub starter switch, 16...Fuel pump operation switch.

Claims (1)

[Scope of Claim for Utility Model Registration] In a tilt cab vehicle in which a cabin is hingedly supported with respect to a vehicle chassis so as to be able to freely tilt forward, a sub-starter switch for operating a starter motor and a switch for operating a fuel pump are provided in parallel with a key switch, The above sub-starter switch is placed on the chassis side near the rear of the engine room, where it is easy to operate when the cabin is tilted forward, while the fuel pump operation switch is placed near the cabin hinge, so that it can be operated automatically when the cabin is tilted forward. A sub-starter switch for tilt cab vehicles that operates the fuel pump.