JPH0245072Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a runaway prevention device for a turret-type power carrier incorporating an internal combustion engine.

BACKGROUND OF THE INVENTION Turret-type power carriers have been widely used as luggage carriers in the market or in various factories and premises. That is, the turret mechanism 1 shown in FIG.
is rotatably equipped, and an accelerator ring 3 is disposed concentrically above the steering handle 2. 4 is a direction change lever, neutral (N);
It is possible to switch between forward (F) and reverse (R).
The power source housed in the turret mechanism 1 includes an electric motor type powered by a battery such as a lead-acid battery, and a type using an internal combustion engine such as an engine, which are used depending on the purpose. When focusing on the system using the above-mentioned internal combustion engine, a hydraulic torque converter or a V-belt type automatic transmission clutch is interposed between the engine and the driving wheels, and a reduction gear to which the direction change lever 4 is attached is installed. The power of the engine is transmitted to the reduction gear via the torque converter or the automatic transmission clutch, and the output of the reduction gear is transmitted to the driving wheels via the chain. Therefore, the driver turns on the main switch for starting the engine, and then moves the direction change lever 4 forward (F).
Alternatively, the vehicle can be driven by simply pushing the accelerator ring 3 downward in reverse (R), and the speed can be controlled by changing the pushing force of the accelerator ring 3. can do.

Problems to be solved by the invention Due to the nature of its use, such conventional turret-type internal combustion engine transport vehicles require agile movement above all else, so ease of operation is an essential condition. The vehicle can be driven only by operating the direction change lever 4, accelerator ring 3, and steering handle 2. Therefore, while it is convenient for driving in crowded markets, it is distracting due to the busyness of work.
When the vehicle is stopped, the driver often fails to return the direction change lever 4 to the neutral (N) position, forgets to turn off the main switch, or forgets to apply the handbrake placed next to the vehicle. Therefore, instruction manuals, etc.
When parking or stopping the vehicle, caution is clearly given to apply the handbrake, set the direction change lever 4 to neutral (N), and turn off the main switch, but in actual work, workability is strongly required. In an environment where many people are crowded together, this is often not protected, and the reality is that loading and unloading operations are carried out in a state where the vehicle can be driven as soon as the accelerator ring 3 is pressed. Therefore, when loading and unloading cargo, a third party may accidentally push the accelerator ring 3 or carelessly place the cargo on the steering accelerator ring 3. In such cases, the engine speed may increase and the transport vehicle may run out of control, which is something to be aware of when driving.

Therefore, the present invention solves the problems that conventional turret-type internal combustion engine transport vehicles have, and
The object of the present invention is to provide a rational and effective device that can prevent the occurrence of runaway vehicle accidents caused by the aforementioned carelessness.

Means for Solving the Problems In order to achieve the above object, the present invention is equipped with a steering handle rotatably mounted on the top surface of a turret mechanism containing an internal combustion engine that is started by a starter battery. In a configuration in which an accelerator ring is disposed concentrically with the steering handle, a tape-shaped pressure-sensitive switch is attached to a predetermined part of the steering handle, which is energized by a pressing operation by the passenger's hand, and furthermore, the switch is connected to the starting battery and the internal combustion engine. Engine starting current flows between the engine and the engine based on gripping the pressure-sensitive switch and pressing the accelerator ring, while it is possible to restart the engine within any set time even if the accelerator ring is stopped being pressed. An internal combustion engine starting circuit consisting of a safety module and a safety module is provided.

Effects According to the present invention having the above configuration, when driving, the driver gets in the car, turns on the main switch, and
When the direction change lever is moved forward or backward, the accelerator ring is pushed, and the driver's hand grasps the steering wheel, the tape-shaped pressure-sensitive switch attached to the steering wheel is energized. Then, the start switch is turned on, the internal relay of the safety module is activated, the internal combustion engine starting circuit is configured, and the vehicle starts moving. After starting, the internal combustion engine continues to rotate even if the pressure-sensitive switch is not held. Further, even if the pressing of the accelerator ring is stopped during driving, the safety module will restart the vehicle only by pressing the accelerator ring within an arbitrary set time. Also, if you stop and load or unload your luggage, if more than the set time has elapsed,
It is possible to restart the engine by grasping the pressure-sensitive switch and pushing the accelerator ring.

Embodiment An embodiment of the runaway prevention device for a turret-type internal combustion engine transport vehicle according to the present invention will be described below with reference to the drawings.

FIG. 1 is a plan view of the device of the present invention, and FIG. 2 is a side view of the same. A steering handle 2 is rotatably mounted on the top surface of a turret mechanism 1, and an accelerator ring is provided concentrically with the steering handle 2. Place 3. Reference numeral 4 denotes a direction changing lever, which, as before, allows switching to the neutral position, forward position, and reverse position. A predetermined portion of the steering handle 2, in the illustrated example, on the inner peripheral surface of the steering handle 2,
A tape-like pressure sensitive switch 5 is attached. This pressure-sensitive switch 5 is stretched over an appropriate length on the inner circumferential surface of the steering handle 2, preferably from at least 1/4 of the inner circumferential surface of the steering handle 2 to the entire circumference as shown in the illustrated example. It is stretched across the entire surface. (See sectional view in Figure 3). Pressure sensitive switch 5 above
Normally, the outer jacket material is special vinyl, and the inside is encapsulated with a switch element that insulates both ends of a copper-plated conductor in a hardened spring material, and it can be bent into a cylindrical shape. The pressure sensitive switch 5 can be attached to the inner peripheral surface of the steering handle 2 using an adhesive, double-sided tape, formed channel, or the like. Further, when a part of the human body or another object comes into contact with a part of the pressure-sensitive switch 5, it becomes electrically conductive, and when there is no such contact, it becomes an insulator.

FIG. 4 shows a drive circuit diagram of an internal combustion engine vehicle equipped with such a pressure-sensitive switch 5. As shown in FIG. That is, 6 is a starting battery, 7 is a main switch, and 8 is a starting switch, which supplies electric power from the starting battery 6 to an engine 9 serving as an internal combustion engine. Furthermore, a safety module 10 is disposed between the main switch 7 and the starting switch 8, which supplies an engine starting current based on the pressure-sensitive switch 5 being held and the accelerator ring being pressed. Reference numeral 11 indicates a battery that drives the safety module 10. The safety module 10 and the pressure sensitive switch 5 form an internal combustion engine starting circuit 12.

The operation of the device of the present invention having such a configuration will be explained below.

When starting the transport vehicle, the driver first turns on the main switch 7 and then turns on the starting switch 8. At this time, safety module 1
Since the engine 0 is in the off state, the engine 9 will not start even if the start switch 8 is turned on. That is, when the driver manually presses the pressure-sensitive switch 5 attached to the steering handle 2, the pressure-sensitive switch 5 becomes energized, and the battery 1 is turned on.
1, the safety module 10 is turned on and a starting circuit for the engine 9 is configured. The output of the engine 9 is transmitted to the reduction gear via the hydraulic torque converter or the V-belt automatic transmission clutch as described above, and the output of the reduction gear is transmitted to the drive wheels via the chain to drive the transport vehicle. takes off. Therefore, the driver turns on the main switch 7, moves the direction change lever 4 attached to the reduction gear to either forward (F) or reverse (R), turns on the start switch 8, and turns the steering wheel on. By grasping the pressure-sensitive switch 5 of the handle 2 and pushing the accelerator ring 3, the engine 9 can be started and the transport vehicle can be driven. At this time, the rotation speed of the engine 9 can be adjusted by controlling the pressing of the accelerator ring 3. It is not necessary to hold the pressure-sensitive switch 5 at all times during driving, and driving can be continued only by rotating the accelerator ring 3 and the steering handle 2. In addition, even if you stop pressing the accelerator ring 3 while driving and the safety module 10 remains on for a predetermined period of time, only the pressing of the accelerator ring 3 is required when starting the vehicle. It is then possible to start the transport vehicle.

When the transport vehicle is stopped and loading/unloading cargo is being carried out, the safety module 10 is turned off after a predetermined set time has elapsed, and the safety module 10 is turned off by only pushing the accelerator ring 3. It becomes impossible to start. In this case, the driver grasps the pressure-sensitive switch 5 on the steering wheel 2 again,
By pushing the accelerator ring 3, the engine 9 can be restarted in the same manner as described above for startup. Therefore, even if a third party pushes the accelerator ring 3 while the safety module 10 is out, the carrier will not start, and the carrier will be prevented from running out of control.

Effects of the Invention As explained above, according to the runaway prevention device for a turret-type internal combustion engine transport vehicle according to the present invention, the steering handle is mounted on the top surface of the turret mechanism housing the internal combustion engine that is started by the starting battery. A tape-shaped pressure-sensitive switch is attached to a predetermined part of the steering handle in a configuration in which the accelerator ring is freely equipped and arranged concentrically with the steering handle, and is energized by a push operation by the passenger's hand. Furthermore, while an engine starting current flows between the starting battery and the internal combustion engine based on the gripping of the pressure-sensitive switch and the pressing of the accelerator ring, even if the pressing of the accelerator ring is stopped, the engine starting current flows for an arbitrary set time. An internal combustion engine starting circuit consisting of a safety module that enables restart within the engine is provided, resulting in the following effects.

That is, when starting the vehicle, the driver stands in the cab and turns on the main switch and also grasps the steering wheel, which turns on the pressure-sensitive switch.
In addition, when the accelerator ring is operated, the safety module energizes and starts the engine, but while the vehicle is running, there is no need to constantly press the pressure-sensitive switch due to the action of the safety module.
Driving operations are no more complicated than before,
The transport vehicle can be easily driven. Additionally, if a predetermined amount of time elapses while the driver is loading and unloading luggage after the driver gets out of the vehicle, the safety module will turn off, so if a third party presses the accelerator ring or Even if a load is placed on the ring, the transport vehicle will not start, preventing it from running out of control. Therefore, even if you inadvertently forget to return the main switch or direction change lever to the neutral position or forget to apply the handbrake, there is no possibility that the transport vehicle will run out of control, improving safety in crowded places such as markets or campuses. It has the advantage of increasing

[Brief explanation of the drawing]

Figure 1 is a plan view showing one embodiment of the present invention;
Figure 3 is a side view of the same side, Figure 3 is a sectional view taken along the - line in Figure 1, Figure 4 is a starting circuit diagram for driving the engine as an internal combustion engine, and Figure 5 is a diagram of a conventional turret type power carrier. It is a side view which shows an example. 1... Turret mechanism, 2... Steering handle,
3...Accelerator ring, 4...Direction change lever,
5...Pressure sensitive switch, 6...Start battery, 7...
...Main switch, 8...Start switch, 9...
Engine, 10...Safety module, 11
... Battery, 12 ... Internal combustion engine starting circuit.

Claims (1)

[Scope of utility model registration request] A turret having a configuration in which a steering handle is rotatably mounted on the upper surface of a turret mechanism that incorporates a starting battery and an internal combustion engine that is started to be driven by the starting battery, and an accelerator ring is arranged concentrically with the steering handle. In the internal combustion engine transport vehicle, a pressure-sensitive switch is installed at a predetermined portion of the steering handle and is energized by a pressing operation by a passenger, and the pressure-sensitive switch is further provided between the starting battery and the internal combustion engine. The engine starts current flows when the accelerator ring is held and the accelerator ring is pressed, while the internal combustion engine also includes a safety module that allows the engine to be restarted within an arbitrary set time even if the accelerator ring is stopped being pressed. A runaway prevention device for a turret-type internal combustion engine transport vehicle, characterized in that an engine starting circuit is provided.