Working vehicle

{
  "publication_number": "US10358174B2",
  "country": "US",
  "kind": "B2",
  "title": "Working vehicle",
  "abstract": "A working vehicle is provided with a traveling vehicle, a working section which is supported on a rotatable base, an operator's cab, and a connection section. The connection section includes: a connection section body which connects the rotatable base and the operator's cab and which is provided so as to be capable of pivoting about a base-side connection section connected to the rotatable base and about the operator's cab-side connection section connected to the operator's cab; and a pivot control section which extends so as to always intersect the connection section body in the range of pivoting of the connection section body, connects the rotatable base and the operator's cab, and is provided so as to be capable of pivoting about a base-side connection section connected to the rotatable base and about an operator's cab-side connection section connected to the operator's cab.",
  "claims": [
    "1. A working vehicle comprising: a travelling vehicle; a working part that includes a slewing base turnably provided on an upper side of the travelling vehicle, and operates with a support of the slewing base; a cab mounted on the slewing base and configured for an operation of the travelling vehicle and the working part; and a coupling part that couples the cab and the slewing base such that an orientation of the cab is changeable with respect to the slewing base, wherein: the coupling part includes: a coupling part main body that couples the slewing base and the cab, and is turnable with a first base connecting part connected with the slewing base and a first cab connecting part connected with the cab, and a turning control part extended to intersect the coupling part main body at all times in a turning range of the coupling part main body and to couple the slewing base and the cab, the turning control part being turnable with a second base connecting part connected with the slewing base and a second cab connecting part connected with the cab, a distance between the first base connecting part of the coupling part main body and the second base connecting part of the turning control part and a distance between the first cab connecting part of the coupling part main body and the second cab connecting part of the turning control part are equal to each other, and a length from the first base connecting part to the first cab connecting part in the coupling part main body and a length from the second base connecting part to the second cab connecting part in the turning control part are equal to each other.",
    "2. The working vehicle according to claim 1, wherein the coupling part main body is connected with the cab at a portion in the proximity of a center of gravity of the cab to support the cab.",
    "3. The working vehicle according to claim 1, wherein the coupling part main body is turned in a range of approximately 90 degrees.",
    "4. The working vehicle according to claim 1, wherein: the cab is disposed on a side of the working part, the cab including at one side part thereof a door through which an operator enters or leaves the cab; and when changing an orientation of the cab such that the door faces the working part, the coupling part turns the cab to form a space between the door and the working part as a passage for the operator."
  ],
  "description_excerpt": "The present invention relates to a working vehicle. In particular, the present invention relates to a working vehicle including a cab for operating a travelling vehicle and a working part.\n\nConventionally, a working vehicle including a cab and a working part that are disposed on a slewing base provided on the upper side of a travelling vehicle is used. For example, a crane vehicle includes a slewing base that is turnable with respect to a travelling vehicle, and a cab and a crane part are disposed on the upper side of the slewing base. The crane part can be freely extended and contracted, and is contracted and laid along the travelling vehicle when the crane operation is completed. With this configuration, the travelling vehicle can stably travel.\n\nHere, in general, a crane part is longer than a travelling vehicle, and, when the crane part is laid along the travelling vehicle, the end part of the crane part protrudes from the front part of the travelling vehicle. In view of this, disadvantageously, the end part of the crane part can possibly block the visibility of the operator operating in the cab when the crane vehicle travels on the road. For example, when the crane vehicle enters an intersection and the end part of the crane part is located between the cab and the signal, the operator in the cab cannot clearly check the traffic light in some situation.",
  "cpc": [
    "B62D 33/0633",
    "B66C 13/54",
    "B66C 23/42",
    "E02F 9/166"
  ],
  "ipc": [
    "B62D 33/063",
    "B66C 13/54",
    "B66C 23/42",
    "E02F 9/16"
  ],
  "assignees": [
    "Tadano Ltd"
  ],
  "inventors": [
    "Takeshi Yamada"
  ],
  "filing_date": "2016-01-05",
  "publication_date": "2019-07-23",
  "grant_date": "2019-07-23",
  "priority_date": "2015-02-27",
  "application_number": "US-201615550138-A",
  "family_id": "56789405",
  "cited_by_count": 3,
  "citations": [
    "US3963132A",
    "US4436169A",
    "JPS6158271U",
    "US5865264A",
    "JP2009040599A",
    "JP2014097881A",
    "US20150225210A1"
  ]
}