{
  "$type": "site.standard.document",
  "description": "A light alloy wheel for a vehicle (30) comprising a disc portion comprising a hub portion and a design portion and a rim portion, the design portion having as-die-cast spoke portions having a taper angle of less than 5.0 DEG . This wheel can be produced by using a casting apparatus comprising a die…",
  "path": "/patents/1103073",
  "publishedAt": "2002-07-17T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B22D15/005",
    "HITACHI METALS LTD [JP]"
  ],
  "textContent": "A light alloy wheel for a vehicle (30) comprising a disc portion comprising a hub portion and a design portion and a rim portion, the design portion having as-die-cast spoke portions having a taper angle of less than 5.0 DEG . This wheel can be produced by using a casting apparatus comprising a die assembly comprising at least a stationary lower die and a movable upper die, a movable platen to which the upper die is fixed, a first cylinder and at least three synchronous second cylinders mounted onto a frame of the apparatus for moving the movable platen; driving the first cylinder to slowly reduce the clamping force of the lower die and the upper die; synchronously driving the second cylinders to elevate the movable platen in parallel from a position at which the lower die and the upper die are clamped to a position at which the wheel would not impinge on the lower die even if the movable platen were slanted; and then further elevating the movable platen by the first cylinder.",
  "title": "Light alloy wheel for vehicle and method and apparatus for producing same"
}