{
  "$type": "site.standard.document",
  "description": "The invention relates to a coupling hook particularly for the lower arms of a three-point linkage of a tractor, which is intended to attach an implement to the tractor by means of a coupler ball (11). The coupling hook includes a body (1); a catch (2) that moves essentially linearly and downwards…",
  "path": "/patents/1089657",
  "publishedAt": "2004-02-18T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "A01B59/006",
    "VIIKKI PAAVO [FI]"
  ],
  "textContent": "The invention relates to a coupling hook particularly for the lower arms of a three-point linkage of a tractor, which is intended to attach an implement to the tractor by means of a coupler ball (11). The coupling hook includes a body (1); a catch (2) that moves essentially linearly and downwards at an angle in guides (13) arranged in a housing (25), and an operating lever (3) fitted to the catch (2), for moving the catch (2) particularly from the retaining position to the open position (2). The operating lever is set to move in an opening (28) above the housing (25), at which location in the body (1) a recess (29) is formed and in the lower position the upper surface (36) of the operating lever (3) is arranged essentially to conform to the upper part of the body (1) or lie beneath it.",
  "title": "Coupling hook particularly for the lower arms of a three-point linkage of a tractor"
}