JPS63161952U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a side view showing a cargo handling equipment horizontal holding device according to an embodiment of the present invention. FIG. 2 is a diagram of the fluid pressure circuit. FIG. 3 is a cross-sectional plan view showing the structure of the self-level valve. 1... Loading equipment horizontal holding device, 2... Boom cylinder, 3... Tail cylinder, 4... Tank,
5...Pump, 6...Boom cylinder control valve, 7
...Variable diverter valve, 8...Unload valve, 9...Variable device, 10...Interlock device.

Claims (1)

[Scope of utility model registration request] A boom cylinder capable of raising and lowering a boom relative to the vehicle body, a tail cylinder capable of raising and lowering a cargo handling tool relative to the boom, a tank in which fluid is stored, a pump connected to the tank, and a tail cylinder connected to the pump to raise and lower the cargo handling equipment. A boom cylinder control valve that can send fluid from the pump to the elevation chamber of the boom cylinder when in the dynamic position, and a boom cylinder control valve that is connected to the depression chamber of the boom cylinder and divides this fluid so that one side is sent to the depression chamber of the tail cylinder. and a variable flow divider valve which can send the other fluid to the tank and which can vary the flow ratio, and which is connected to the elevation chamber of the tail cylinder and sends the fluid there to the tank depending on the fluid to the tilt chamber of the tail cylinder. An unloading valve is provided between the variable flow valve and the variable valve, and a variable valve is provided between the variable valve and the variable valve to change the flow rate of the tilt cylinder. A cargo handling equipment horizontal holding device characterized by comprising: an interlocking device that can be interlocked so as to increase in size.