Transporter vehicle
First Claim
Patent Images
1. A transporter vehicle comprising:
- an automotive vehicle body;
a vessel which is tiltably provided on said vehicle body by using a rear side of said vehicle body as a fulcrum and on which objects to be transported are loaded;
an operating room provided in said vehicle body to be positioned in a front side of said vessel;
a steering handle provided in said operating room and steered by a driver;
a steering valve for controlling a direction and a flow amount of pressurized oil supplied to a steering cylinder at the time of being operated and changed from a neutral position by said steering handle;
a circulation line for circulating the pressurized oil in said steering valve when said steering valve is in the neutral position; and
an orifice member provided along said circulation line to be removably mounted to an outer side face of said steering valve for applying a throttling function to the pressurized oil, said orifice member being screwed into a housing of said steering valve to be mounted thereon to an outside of said housing.
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Accused Products
Abstract
There is provided a circulation line (39) for circulating pressurized oil from an accumulator (11) into a housing (15) of a steering valve (14). An orifice joint (41) is provided along the path of the circulation line (39). The orifice joint (41) is removably mounted on the housing (15) of the steering valve (14) from outside. An orifice portion (42) of the orifice joint (41) applies a throttling function to the circulating oil liquid whereby a frictional heat is generated therein. The oil liquid in a warm state flows through a communication passage (21), passages in a spool valve (16), and a low pressure side passage (18B), thus enabling the steering valve (14) to be always in a warm state.
9 Citations
4 Claims
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1. A transporter vehicle comprising:
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an automotive vehicle body; a vessel which is tiltably provided on said vehicle body by using a rear side of said vehicle body as a fulcrum and on which objects to be transported are loaded; an operating room provided in said vehicle body to be positioned in a front side of said vessel; a steering handle provided in said operating room and steered by a driver; a steering valve for controlling a direction and a flow amount of pressurized oil supplied to a steering cylinder at the time of being operated and changed from a neutral position by said steering handle; a circulation line for circulating the pressurized oil in said steering valve when said steering valve is in the neutral position; and an orifice member provided along said circulation line to be removably mounted to an outer side face of said steering valve for applying a throttling function to the pressurized oil, said orifice member being screwed into a housing of said steering valve to be mounted thereon to an outside of said housing. - View Dependent Claims (2, 3, 4)
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Specification