Method of sleeving an at least locally cylindrical part into a tubular part in a cruciform arrangement

{
  "publication_number": "US6216330B1",
  "country": "US",
  "kind": "B1",
  "title": "Method of sleeving an at least locally cylindrical part into a tubular part in a cruciform arrangement",
  "abstract": "An assembly is formed of two parts sleeved together in a cruciform arrangement, namely an at least locally cylindrical part and a tubular part having a transverse hole into which the cylindrical part is forcibly inserted. To brace internally the wall of the tubular part on the side from which the cylindrical part is inserted, before such insertion a spacer is inserted into the tubular part through the hole in it and thereafter extends along a portion of the perimeter of the hole. Applications include the assembly of two parts.",
  "claims": [
    "1. A method of forcibly sleeving together two parts in a cruciform arrangement, which comprises: providing an at least locally cylindrical part; providing a tubular part extending in a lengthwise direction, and having two walls and a hole transverse said lengthwise direction for enveloping the overall contour of said cylindrical part; inserting a spacer axially into said tubular part through said hole, then radially expanding said spacer between the two walls of said tubular part around said hole, thereby bracing said tubular part, internally near the hole along at least a portion of the perimeter of the hole; said spacer inserted in said tubular part remaining therein afterwards; and thereafter conjointly causing said cylindrical part and said tubular part to move relative to each other so that said cylindrical part is forcibly inserted in said hole in said tubular part from one side of the latter, while said tubular part is braced externally on an opposite side.",
    "2. The method claimed in claim 1 wherein said spacer inserted into said tubular part is expanded in the lengthwise direction thereof.",
    "3. The method claimed in claim 1 wherein said spacer is adapted to be wedged between the two walls of said tubular part around said hole.",
    "4. The method claimed in claim 3 wherein said spacer has an insertion bevel on its external edge on at least one face.",
    "5. The method claimed in claim 1 wherein said spacer is made from a hard synthetic material resistant to compression.",
    "6. The method claimed in claim 1 wherein said spacer is formed of at least two circumferential segments so that it can be expanded radially.",
    "7. The method claimed in claim 6 wherein said spacer comprises segments initially attached circumferentially to each other in a separable manner.",
    "8. The method claimed in claim 1 wherein said spacer has an external edge having an overall contour in plan view similar to that of said hole in said tubular part.",
    "9. The method claimed in claim 1 wherein said spacer has an internal edge which has an overall contour in plan view similar to that of said hole in said tubular part."
  ],
  "description_excerpt": "1. Field of the Invention\n\nThe present invention is generally concerned with sleeving an at least locally cylindrical part into a tubular part in a cruciform arrangement, i.e. sleeving the cylindrical part into the tubular part in a direction that is globally transverse to the lengthwise direction of the latter.\n\nIn the present context the expression “at least locally cylindrical” is to be understood as referring to a part having an exterior surface which is, at least locally, where it is sleeved into the tubular part, a cylindrical surface, i.e. a surface which has parallel generatrices regardless of the nature, circular or otherwise, of the contour of its cross-section.\n\nThis at least locally cylindrical part, which will be referred to hereinafter for convenience as the cylindrical part, may be solid, hollow or tubular.\n\nIn the case of a hollow or tubular part, it may accommodate at least one other component of any kind.\n\n2. Description of the Prior Art\n\nThe assemblies formed of a cylindrical part of this kind sleeved into a tubular part find applications in assembling the parts together, for example in the manufacture of automobiles.\n\nA hole is made through the tubular part adapted to envelope the overall contour of the cylindrical part and, for example in a press, the cylindrical part and the tubular part are conjointly caused to move relative to each other so that the cylindrical part is forcibly inserted into the hole in the tubular part from one side of the latter while the tubular part is braced externally on the opposite side.",
  "cpc": [
    "B21D 39/044",
    "B23P 11/00",
    "E06C 7/08",
    "F16B 4/004",
    "Y10T 29/49872",
    "Y10T 29/49938",
    "Y10T 29/49945",
    "Y10T 29/53657",
    "Y10T 403/7003",
    "Y10T 403/7058"
  ],
  "ipc": [
    "B21D 39/04",
    "B23P 11/00",
    "E06C 7/08",
    "F16B 7/00"
  ],
  "assignees": [
    "Vallourec Composants Automobiles Vitry SA"
  ],
  "inventors": [
    "Daniel Valin"
  ],
  "filing_date": "1998-12-15",
  "publication_date": "2001-04-17",
  "grant_date": "2001-04-17",
  "priority_date": "1996-01-10",
  "application_number": "US-21073198-A",
  "family_id": "9488020",
  "cited_by_count": 11,
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}