WO2010062033A2

WO2010062033A2 - Combined forklift truck and automobile having simultaneous operating function

Info

Publication number: WO2010062033A2
Application number: PCT/KR2009/005563
Authority: WO
Inventors: 정현철
Original assignee: 에스엠중공업 주식회사
Priority date: 2008-11-26
Filing date: 2009-09-29
Publication date: 2010-06-03
Also published as: WO2010062033A3; CN102216196A; KR100914960B1; CN102216196B

Abstract

The present invention relates to a combined forklift truck and automobile, in which a loading and unloading function and a transporting function of a forklift truck and merits of an automobile relatively faster than the forklift truck are maximized, and a new function is provided on the basis of the advantages of the forklift truck and the automobiles. The present invention accomplishes a new concept combined forklift truck in which forklift truck-related devices such as a mast, a driver seat, and the like are installed in the rear portion of the automobile, and functions maneuvered at the driver seat of the automobile can be also used at the driver seat of the forklift truck to enable the main function of the forklift truck such as a loading and unloading function and a transporting function. The combined forklift truck and automobile of the present invention not only uses all of the unique functions of the forklift truck but also ensures a wide range of operation of the forklift truck by enabling high velocity and mobility.

Description

Forklift and car with simultaneous operation

The present invention relates to a forklift and a vehicle having a simultaneous operation function, and more particularly, a new function based on the advantages of both of the forklift's loading and unloading and transporting functions and maximizing the advantages of a vehicle having a relatively higher speed than the forklift. It is about forklifts and cars that have been granted.

In general, a forklift is used to lift and lower a relatively heavy load or to transport it to a desired position in a limited space, and is widely used throughout the industry.

Such a forklift is based on an industrial engine with a low velocity based on high toeque, and is suitable for movement during loading and unloading and load loading.

Normally, the body of the forklift is supported by the front driving wheel and the rear steering wheel, and a mast is installed at the front.

The mast is provided with a carriage movable up and down along the mast.

The mast is composed of an outer mast having an outer rail facing each other, and an inner mast installed to overlap the inner side of the outer mast while having an inner rail facing the inner mast, wherein the inner mast is movable up and down along the outer mast. Are assembled.

In addition, the inner mast is provided with a primary lift cylinder for raising and lowering a carriage, and both sides of the outer mast are provided with a secondary lift cylinder for raising and lowering the inner mast up and down.

On the other hand, the carriage is towed to the upper part of the inner mast by the linkage between the primary lift cylinder and the chain. For example, when the primary lift cylinder is operated, the chain is pulled up and the carriage is raised, and the chain doubles the moving amount. This increases the carriage by twice the cylinder stroke.

Such a forklift is suitable for movement during loading, unloading and loading, but it is restricted in the area of use due to lack of engine characteristics and safety for high speed movement at no load (tolerance). Incidental expenses are incurred.

In addition, these forklifts are vulnerable to the load or impact generated by each member due to the absence of the suspension, and in order to solve them, a design for high strength (high cost, high weight, etc.) must be made and maintained due to damage. the cost occurs.

In addition, there is no damping device for vibration generated by the shock transmitted from the load, and the driver feels a lot of fatigue.

Meanwhile, Korean Utility Model Registration No. 20-0276479 suggests a forklift for cultivator.

In the construction of the forklift truck related to the industrial vehicle classification, which is the current global standard, the driving shaft is mostly the front wheel, and sometimes the four-wheel drive for the rough terrain.

This is because the lifting force of the shaft carrying the cargo in the forward direction is increased due to the characteristics of the forklift.

The mast and forklift driver's seats are located directly in front of and behind the front wheels, respectively.

The steering side is mostly using the rear wheel side to facilitate the turning radius and cargo loading and unloading functions.

For example, when you park your vehicle, you can park backwards where you can't move forward.

Only when these two problems are solved, the role as a true forklift is possible. In the above utility model, the work equipment of the forklift is installed in the front, so that the loading and unloading is possible, but in the operation of the forklift, the function of the conventional forklift is not realized at all. There is a limit.

The present invention has been made in view of the above, the installation of the forklift-related devices such as the mast, the driver's seat in the rear part of the car, and share the functions to operate in the driver's seat in the forklift driver's seat together, the main function of the forklift truck By implementing a new concept of forklift and vehicle that enables transport and transport, it is possible to utilize all the unique functions of the forklift, and to secure a wide range of forklift activities such as quickness and mobility due to high speed. It is an object of the present invention to provide a forklift and a vehicle having a simultaneous operation function.

In order to achieve the above object, the forklift and the vehicle provided by the present invention have a forklift driver's seat installed at the rear of the car body and at the same time the forklift driver's seat is installed at the front of the mast, and the car driver's seat It consists of a steering system, a brake system, a clutch system, and a shifting system that can share the functions of the forklift truck, and the main functions of the forklift truck can be loaded, unloaded and transported, and the vehicle can be quickly and moved. do.

Here, the mast is installed so as to overlap the inner side of the outer mast while having a carriage movable up and down along the mast, an outer mast having a vertical outer rail facing each other, and an inner vertical rail having an opposite vertical rail. Inner mast movable up and down, primary lift cylinder installed on the inner mast to raise and lower the carriage, secondary lift cylinders installed on both sides of the outer mast to lift and lower the inner mast up and down, It is preferable to configure in the form including a tilt cylinder for adjusting the angle.

In addition, it is preferable to install a crane, a compressor, a cleaner, a traction device, or the like on the main body of the vehicle or the mast of the forklift, so that it can be used for various purposes in addition to the forklift function.

Forklift and vehicle provided by the present invention has the following advantages.

① By using the inherent functions of the forklift, it can use the advantages of the car such as the speed and mobility that the conventional forklift did not have, so that it can cover a much larger work area than the conventional forklift activity range, and it is easy to equip the forklift. It can be useful even in areas where it is not.

② The use of automobile suspension can reduce the resin and maintenance cost caused by the damage of parts caused by the impact of load in the conventional forklift, and can significantly reduce the shock delivered to the driver.

③ The disadvantages of the conventional forklifts, such as unpaved, rainy roads, rough terrain (snow road, mountain, paddy field, field, etc.) can be driven by the environment is much less than the conventional forklift.

④ By adding additional devices such as cranes, compressors, vacuum cleaners, traction devices, etc. to the mast of the forklift or the main body of the car, it is possible to have a multi-function instead of one purpose. It can be used to meet various needs such as user needs, purchase cost, and maintenance cost according to utilization rate.

⑤ With excellent fuel economy and maneuverability compared to existing forklifts, it can reduce social costs (time, fuel, noise, etc.) caused by traffic jams, reduce environmental pollution factors (soot), and reduce environmental loss costs.

1 and 2 are a perspective view showing a forklift and a vehicle according to an embodiment of the present invention

3 is a plan view showing a forklift and a vehicle according to an embodiment of the present invention.

Figure 4 is a side view showing a forklift and a vehicle according to an embodiment of the present invention

5 is a rear view showing a forklift and a vehicle according to an embodiment of the present invention.

6 is an enlarged view showing a forklift driver's seat of a forklift and a vehicle according to an embodiment of the present invention.

7 is a hydraulic circuit diagram illustrating a steering system of a forklift and a vehicle according to an embodiment of the present invention.

8 and 9 are hydraulic circuit diagrams showing a brake system of a forklift and a vehicle according to an embodiment of the present invention.

10 is a hydraulic circuit diagram illustrating a clutch system of a forklift and a vehicle according to an embodiment of the present invention.

11 is a schematic diagram showing a forward / reverse shift control mechanism of a forklift and a vehicle according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 are a perspective view showing a forklift and a vehicle according to an embodiment of the present invention, Figures 3 to 5 are a plan view, a side view and a rear view showing a forklift and a vehicle according to an embodiment of the present invention.

As shown in FIGS. 1 to 5, the forklift and the vehicle are provided with devices related to the forklift such as a mast and a forklift driver's seat at the rear part of the car to enable loading, unloading, and transporting as main functions of the forklift. And a new concept work vehicle that combines the advantages of a forklift and a car, such that the use of the car and the use of the forklift can be converted simultaneously and freely.

In addition, by installing a number of additional devices in the mast and the main body of the forklift working device is composed of a vehicle having a multi-function rather than one purpose.

To this end, an automobile driver's seat 13 is installed at the front of a normal vehicle body 10 such as a commercial vehicle, and a forklift driver's seat 12 and a mast 11 are installed at the rear portion of the vehicle body 10.

At this time, the driver's seat 13 and the forklift driver's seat 12 are turned toward each other to face the front and the rear of the car, and thus the vehicle driver's seat 13 can normally drive the vehicle, and the forklift driver's seat 13 Looking at the mast 11 in front of the forklift can operate efficiently, such as driving a normal forklift.

That is, the vehicle driver's seat 13 is capable of driving a vehicle such as a normal driving, and the forklift driver's seat 12 is capable of operating a vehicle for operation of the mast 11 and driving a vehicle such as forward 1 speed or reverse. It is supposed to.

The vehicle driver's seat 13 and the forklift driver's seat 12 may share the functions of various devices of the vehicle, and thus driving in the driver's seat 13 for driving or driving in the forklift driver's seat 12 for forklift operation. Even if you do not have any problem using the features of the various devices.

For example, in the driver's seat 13 and the forklift driver's seat 13, functions such as a steering system, a brake system, a clutch system, a shifting system, and the like can be freely used, and thus, the main functions of the forklift truck can be loaded, unloaded and transported. And normal driving of the vehicle is possible.

In other words, while utilizing all the unique functions of the forklift, it is possible to take advantage of the advantages of the car, such as speed and mobility.

6 is an enlarged view illustrating a forklift driver's seat of a forklift and a vehicle according to an embodiment of the present invention.

As shown in FIG. 6, the forklift driver's seat 12 is installed in an integrated structure at the rear part of the vehicle body 10, and a mast 11 for forklift function is located in front of the forklift driver's seat 12.

At this time, the mast 11 is also installed in an integrated structure in the rear portion of the vehicle body (10).

The forklift driver's seat 12 includes a steering wheel, various levers for shifting a vehicle, various operation levers and switches for mast operation, a brake pedal for driving a vehicle, a clutch pedal, an accelerator pedal, and the like.

Accordingly, the driver may adjust the forklift function while operating the mast 11 while driving the vehicle in the forklift driver's seat 12 at the time of loading, unloading and transporting the cargo.

Of course, since the functions of the various devices of the vehicle can be shared at the time of the forklift operation, the operation of the mast 11 as well as the forward and backward driving of the vehicle can be easily performed.

The mast 11 for forklift operation includes a carriage, an outer mast and an inner mast, a 1st and 2nd lift cylinder, a tilt cylinder, etc. like a normal mast.

For example, an outer mast 15 having a vertical outer rail facing each other while being supported by both tilt cylinders 19 having an angle adjustment function in front of the forklift driver's seat 12 and having an angle adjustment function. ) Is installed, and the inner mast 16 having vertical inner rails facing each other inside the outer mast 15 is installed side by side so as to overlap.

At this time, the inner mast 16 has a structure capable of moving up and down along the outer mast 15.

In addition, a lift cylinder that provides power for the operation of the inner and outer masts, that is, the primary lift cylinder 17 is installed in the inner mast 16 and is connected to the carriage 14 side to raise and lower the carriage 14. The secondary lift cylinder 18 may be installed at both sides of the outer mast 15 so as to be connected to the inner mast 16 and to raise and lower the inner mast 16 up and down.

In addition, like the normal mast, when the carriage 14 is towed to the upper portion of the inner mast 16 by the linkage of the primary lift cylinder 17 and the chain 33, the primary lift cylinder 17 is operated. When the chain 33 is pulled down, the carriage 14 is raised. At this time, the chain 33 may double the moving amount and raise the carriage 14 at twice the cylinder stroke.

In the present invention, the hydraulic power may be provided by using a power system of the vehicle to provide hydraulic pressure to various actuators such as a cylinder during a forklift operation, or by operating a pump with a separate power system.

For example, a pump that operates hydraulic pressure by additionally configuring a pulley capable of clutching the front of the engine may be installed, or the pump may be installed by using a power take-off device (if the engine has a PTO function), When configured separately from the engine, a pump may be installed in the battery powered hydraulic electric motor.

In addition, by providing a hydraulic control valve in the hydraulic line connected to each actuator side, the hydraulic pressure can be appropriately provided to the cylinder or the like while adjusting the flow rate and the flow path.

That is, the hydraulic pump operated by the power of the engine through the clutch, the hydraulic pump operated by receiving power from the engine power take-off device (PTO), the battery operated electric motor and the hydraulic pump for the operation of the lift and tilt cylinder. It is equipped with a hydraulic control valve which can selectively distribute the flow volume and flow path supplied to each cylinder side, and can adjust various cylinder means suitably at the time of a forklift operation.

The present invention provides a forklift driver's seat 12 that can control the function of the forklift when working with the forklift, and a steering system and a brake system that can operate the main functions of the forklift in the forklift driver's seat 12. system, clutch system, side brake system, forward and backward shift control mechanism, and the like.

For example, a brake valve and a clutch valve may be installed in the brake system and the clutch system to use the main functions of the vehicle and the brakes in the forklift driver's seat 12, whether the brakes or clutches are used in the driver's seat 13 or the like. B. It is possible to use the clutch without any device.

In addition, for the safety speed of the forklift may have a structure that allows only the shift of the first forward and the reverse of the vehicle.

In addition, in the configuration of the steering system, a hydraulic steering motor and an orbital motor for a vehicle are connected by a chain or a belt, and a directional valve for operating an electric signal between the orbital motor and the forklift steering unit is provided. By installing an electric signal pressure switch on one side of the forklift steering unit, and operating the directional valve when the forklift steering unit is operated, the steering of the vehicle can be made free from the forklift driver's seat 13.

This will be described in more detail as follows.

7 is a hydraulic circuit diagram illustrating a steering system of a forklift vehicle according to an embodiment of the present invention.

As shown in Fig. 7, the relationship in which the vehicle steering operation and the forklift steering operation can be selectively performed without mutual interference is shown.

To this end, a forklift steering unit 20 for driving the forklift is provided, and an electric signal pressure switch 25 is installed at one side of the forklift steering unit 20, and the forklift steering unit 20 is provided. A hydro tank 34 and pump 35 for providing hydraulic pressure and a control valve 36 for controlling hydraulic pressure are provided at the same time as being connected to the hydraulic line.

In addition, an orbital motor 22 is provided to provide power to the vehicle steering side, and the orbital motor 22 at this time is connected to the vehicle hydraulic steering motor 21 through a transmission member 23 made of a belt or a chain. .

In addition, between the orbital motor 22 and the forklift steering unit 20 is provided with a direction switching valve 24 that operates as an electric signal, the electric signal pressure switch 25 according to the operation of the forklift steering unit 20 The hydraulic pressure provided to the orbital motor 22 side in the ON / OFF state of) may be supplied or interrupted by the direction switching valve 24.

Accordingly, when the forklift steering unit 20 is operated, the direction switch valve 24 is switched to the open state while the pressure switch 25 for the electric signal is turned on, and at the same time, the orbital motor 22 is supplied with the hydraulic pressure. ) Can be operated, the vehicle hydraulic steering motor 21 is operated in accordance with the operation of the orbital motor 22 corresponding to the operation direction of the forklift steering unit 20 can be adjusted the direction of the vehicle wheel. .

That is, the steering of the vehicle can be freely adjusted in the forklift driver's seat 12.

On the contrary, when the operation of the forklift steering unit 20 is stopped after the forklift operation is completed, the direction switching valve 24 is returned to the state of blocking the flow path while the pressure switch 25 for the electric signal is turned off. The vehicle can be driven by the steering of the vehicle regardless of the steering side.

Here, the method of the cooperative control between the operation of the forklift steering unit and the pressure switch for electric signal, the method of configuring the hydraulic line for the cooperative control between the operation direction of the forklift steering unit and the operation direction of the orbital motor, and the like are commonly known in the art. If so, the present invention is not particularly limited and may be adopted.

8 and 9 are hydraulic circuit diagrams illustrating a brake system of a forklift and a vehicle according to an embodiment of the present invention.

As shown in Figs. 8 and 9, the relationship in which the vehicle brake operation and the forklift brake operation can be selectively performed without interference with each other is shown.

To this end, as shown in FIG. 8, the brake system, that is, the

brake pedals

29a, 29b and the

master cylinders

26a, 26b are installed on the driver's seat 13 side and the forklift driver's seat 12 side, respectively. Each of the

master cylinders

26a and 26b is connected to a reservoir tank 27a to provide hydraulic pressure, and each hydraulic line extending from each of the

master cylinders

26a and 26b includes one shuttle valve ( 28a).

In addition, the two hydraulic lines extending from the shuttle valve 28a are connected to a wheel cylinder of each wheel of the vehicle, for example, the left rear wheel cylinder and the right rear wheel cylinder via an ABS unit.

Accordingly, the vehicle brake may be operated in response to any one of the brake manipulations according to the flow path switching operation of the shuttle valve 28a.

For example, when the forklift operation, the shuttle valve 28a opens the hydraulic line on the forklift and closes the hydraulic line on the car. At this time, the operation of the brake pedal 29b in the forklift driver's seat 12 is performed. Each wheel of the vehicle can be braked.

Of course, in the opposite case as well, it is possible to brake each wheel of the vehicle by manipulating the brake pedal 29a in the motor vehicle 13.

Here, the method of operating the switching of the flow path of the shuttle valve in conjunction with the vehicle side brake operation or the forklift side brake operation, etc. may be particularly known in the art, such as a vehicle electronic control device such as an ECU. It can be adopted without limitation.

As shown in FIG. 9, another example of the linkage configuration between the vehicle side brake system and the forklift side brake system is shown.

That is, the hydraulic pressure supplied from a separate auxiliary tank is provided at the input side of the forklift side master cylinder 26b, and the hydraulic lines extending from the master cylinder 26b side at this time are connected with two hydraulic lines extending from the ABS unit side. The two hydraulic lines are provided with respective shuttle valves 28a, and each line extending from each shuttle valve 28a is connected to the left rear wheel side and the right rear wheel side of the vehicle, respectively.

Here, as in the above example, the vehicle brake may be operated in response to any one of the brake manipulations according to the flow path switching operation of the shuttle valve 28a.

Therefore, when operating the brake pedal 29a on the side of the driver's seat 13 or when operating the brake pedal 29b on the side of the forklift driver's seat 12, the vehicle brake can be freely used without interference.

As shown in Fig. 10, the clutch system, that is, the

clutch pedals

32a, 32b and the

master cylinders

26c, 26d, are provided on the driver's seat 13 side and the forklift driver's seat 12 side, respectively. A reservoir tank 27b is connected to the

master cylinders

26c and 26d to provide hydraulic pressure, and each hydraulic line extending from each

master cylinder

26c and 26d is connected to one shuttle valve 28b. Connected.

In addition, two hydraulic lines extending from the shuttle valve 28b are connected to the release cylinder 31 of the vehicle clutch device 30.

Accordingly, the clutch of the vehicle can be operated in response to either clutch operation according to the flow path switching operation of the shuttle valve 28b.

For example, when the forklift operation, the shuttle valve 28b opens the hydraulic line on the forklift and closes the hydraulic line on the vehicle. At this time, the operation of the clutch pedal 32b in the forklift driver's seat 12 is performed. The clutch of the vehicle can be operated.

Of course, in the opposite case as well, the clutch of the vehicle can be normally operated by operating the clutch pedal 32a in the vehicle driver 13 during vehicle driving.

In this case, the method of operating the switching of the shuttle valve in conjunction with the vehicle clutch operation or the forklift clutch operation may be a method generally known in the art, such as using an electronic control device such as an ECU. It is not particularly limited and may be adopted.

Therefore, in the case of using the clutch pedal 32a on the side of the driver's seat 13 or the clutch pedal 32b on the forklift driver's side, the vehicle clutch system can be freely used.

On the other hand, the present invention provides a means and method that can achieve safety by limiting the speed of the vehicle during forklift operation.

To this end, the forklift driver's seat 12 is provided with a forward / reverse shift control mechanism that allows shifting of only one forward and one reverse speed, thereby limiting the driver in operating the shift lever in the forklift driver's seat 12. By this, it is possible to maintain the specified safety speed when using the forklift, and eventually prevent accidents and the like during forklift operation.

For example, as shown in Figure 11, first look at the operating principle of the manual transmission of the vehicle, in order to shift in the driver's seat to move the vehicle shift lever 37 to the left / right (hereinafter referred to as left / right shifting) After that, it moves in the forward / reverse direction (hereinafter referred to as shifting).

Left / Right shifting selects a total of three shifting rails within the transmission structure, and each shifting rail is connected to the gear assemblies of 1st, 1st, 2nd, 3rd, and 4th and 5th gears. The left / right shifting lever is operated to select the rail by operating the second hinged lever 38 to select the rail.

In addition, the front and rear shifting levers can operate the first hinged lever 39, which can operate each rail back and forth, to select the respective gear stages of the gear assemblies.

In addition, since the rails that can be selected for forward / reverse are mostly left or right in the neutral (middle) state, the second hinged lever 38 must be operated to one side for this purpose.

The gear shifting mechanism in the forklift driver's seat is as follows.

First, the component was connected to the forklift clutch pedal 32b for left / right shifting.

When the forklift clutch pedal 32b is pressed, the rod 40 (or cable) moves the holder housing 43 by the free length of the primary spring 44 through the piston 41 and the secondary spring 42. .

At this time, the tension of the secondary spring 42 should be higher than the tension of the primary spring (44).

Since the stroke of the master cylinder, which is an inherent function of the clutch, is larger than the stroke of the hinged lever, after the operation of the primary spring 44 in order to avoid the movement of the clutch pedal caused by the hinged lever, the holder housing ( 43. The secondary spring 42 inside is operated to complete the clutch function.

Thereafter, the second hinged lever 39 is operated through the shift lever 45 for the forklift to select the forward / reverse direction.

When operating in the driver's seat, the above movement is reversed.

On the other hand, the case of the automatic transmission is as follows.

The gear shift of the automatic transmission is operated by electric signals through the shift lever and the ECU, and the gear shift is performed simultaneously by the hydraulic power through the valve operated by the electric signal. In other words, in order to use a forklift and a vehicle, the shift lever of the forklift and the shift lever of the car can be easily controlled through a device capable of generating an electric signal.

In addition, the present invention provides a means for increasing the utilization associated with the use of the vehicle by providing a variety of multi-function as well as the forklift function.

For example, a crane, a compressor, a cleaner, a towing device, etc. may be installed in a main body of a vehicle, a mast of a forklift truck, and the like, thereby providing an advantage that can be used for various purposes in addition to the forklift function.

In this way, the forklift driver's seat and mast for integrally installing the forklift function on the rear side of the vehicle capable of normal driving, and the operation and operation of the various devices of the vehicle can be shared with the forklift, thereby making it possible to In addition to being able to effectively carry out unloading and conveying operations, it can have the advantages of a vehicle having a relatively high speed compared to a forklift truck, and thus, it is possible to secure a wider operating range of the forklift truck. It can cover a much wider working area.

Claims

A mast 11 which may have a forklift function is installed at the rear of the vehicle body 10, and a forklift driver's seat 12 that adjusts a forklift function is installed directly in front of the mast 11, and an automobile driver's seat 13. It consists of a steering system, a brake system, a clutch system, and a shifting system that can share the functions of the forklift truck, and the main functions of the forklift truck can be loaded, unloaded and transported, and the vehicle can be quickly and moved. Forklifts and cars with simultaneous operation.
2. The mast (1) according to claim 1, wherein the mast (11) has a carriage (14) movable up and down along the mast (11), an outer mast (15) having a vertical outer rail (facing), and a vertical inner rail (facing). The inner mast 16 is installed to overlap the inner side of the outer mast 15 and moves up and down along the outer mast 15, and the inner mast 16 is mounted on the inner mast 16 to lift the carriage 14. The primary lift cylinder 17 for lowering, the secondary lift cylinder 18 installed on both sides of the outer mast 15 and raising and lowering the inner mast 16 up and down, and the mast 11 Forklift and vehicle having a simultaneous operation function characterized in that it comprises a tilt cylinder (19) for adjusting the angle.
The hydraulic pump of claim 1, wherein the mast 11 is operated by a hydraulic pump operated by the power of the engine or a power take-off device of the engine (PTO) of the engine to operate the lift and the tilt cylinder, or A forklift and vehicle having a simultaneous operation function comprising a battery-operated electric motor and a hydraulic pump, and a hydraulic control valve for selectively distributing flow rates and flow paths supplied to each cylinder.
The method according to any one of claims 1 to 3, wherein the steering system comprises a forklift steering unit 20, connecting the hydraulic steering motor 21 and the orbital motor 22 for automobiles with a transmission member 23 In addition, while installing the direction switching valve 24 for operating the electric signal between the orbital motor 22 and the forklift steering unit 20, the forklift steering unit 20 is provided with an electric signal pressure switch 25 When the forklift steering unit is operated, the forklift and the vehicle having the simultaneous operation function, characterized in that the steering of the car in the forklift driver's seat can be freely adjusted by the operation of the directional valve.
The reservoir tank 27a according to any one of claims 1 to 3, wherein the brake system supplies hydraulic pressure to the master cylinder 26a on the driver's seat 13 side and the master cylinder 26b on the forklift driver's seat 12 side. And a shuttle valve 28a installed at the confluence point of the hydraulic lines extending from the master cylinders 26a and 26b and providing hydraulic pressure to each wheel side, and the brake on the side of the automobile driver's seat 13. A forklift and vehicle having a simultaneous actuation function, characterized in that the brake can be freely used, whether using the pedal 29a or the brake pedal 29b on the forklift driver's seat 12 side.
The reservoir tank 27b according to any one of claims 1 to 3, wherein the clutch system supplies hydraulic pressure to the master cylinder 26c on the driver's seat 13 side and the master cylinder 26d on the forklift driver's seat 12 side. And a shuttle valve 28b installed at a confluence point of the hydraulic lines extending from the master cylinders 26c and 26d and providing hydraulic pressure to the release cylinder 31 of the clutch device 30, respectively. Whether the clutch pedal 32a on the driver's seat 13 side or the clutch pedal 32b on the driver's seat 12 side is used, the clutch can be freely used. car.
The forklift driver seat 12 of claim 1, wherein the forklift driver's seat 12 shares a function with the driver's seat 13 while allowing only one forward gear and one reverse gear shift to maintain a defined safe speed when using the forklift. A forklift and vehicle having a simultaneous operation function further comprising a control mechanism.
The method of claim 1, wherein the main body 10 of the vehicle or the mast 11 of the forklift is provided with at least one or more of a crane, a compressor, a cleaner, a traction device, and can be used for various purposes in addition to the forklift function. Forklift and vehicle with simultaneous operation.
A forklift driver's seat 12 is installed at the rear of the vehicle body 10, and a forklift driver's seat 12, which can adjust the forklift function in front of the mast 11, is provided in front of the vehicle body 10. A steering system, a brake system, a clutch system, and a shifting system, which are installed at the rear of the vehicle with the vehicle driver's seat 13 installed on the back, and which share the function with the vehicle driver's seat 13 in the forklift driver's seat 10. A forklift and a vehicle having a simultaneous operation function, including a system, characterized in that the main function of the forklift can be loaded, unloaded and transported while having the speed and mobility of the car.