Jig and method for manufacturing boxed body of polycrystalline silicon

{
  "publication_number": "US12358663B2",
  "country": "US",
  "kind": "B2",
  "title": "Jig and method for manufacturing boxed body of polycrystalline silicon",
  "abstract": "In order to prevent an increase in width of a part of an accommodation bag from when polycrystalline silicon packed is lifted and until when the polycrystalline silicon is placed into a predetermined position and thus to accurately place the accommodation bag into a predetermined space, an accommodation case (10) includes a side surface body (11) forming an insertion space (12) into which an accommodation bag (B 1) accommodating polycrystalline silicon (S 1) is to be inserted; lift portions 13 for lifting the side surface body (11); and a tray (15) configured to support the accommodation bag (B 1), the tray (15) being configured to be detached from a bottom portion (11 a) of the side surface body (11), so that an opening (OP) is formed at the bottom portion of the side surface body (11), the opening (OP) being configured to form a placement path (30) for the accommodation bag (B 1).",
  "claims": [
    "1. A jig comprising: a side surface body that has a tubular shape and that forms an insertion space into which an accommodation bag accommodating polycrystalline silicon fracture piece is to be inserted from above; lift portions that are provided to the side surface body in order to lift the accommodation bag and the side surface body; and a tray that is detachably provided to a bottom portion of the side surface body and that is configured to support the accommodation bag, the tray being configured to, when the side surface body is lifted, be detached, so that an opening is formed at the bottom portion of the side surface body, the opening being configured to form, when the accommodation bag is placed from above into an accommodation space in which the accommodation bag is to be accommodated, a placement path for the accommodation bag from the insertion space to the accommodation space, wherein the opening fits in a cross section of the accommodation space cut along a plane substantially parallel to a horizontal plane.",
    "2. A method for producing a polycrystalline silicon-packed box by packing, with use of the jig according to claim 1, the accommodation bag into a box provided with the accommodation space, the method comprising the steps of: lifting, together with the jig, the accommodation bag inserted in the jig; and causing the jig lifted and the accommodation bag lifted to move to a position above the predetermined accommodation space and placing the accommodation bag from above the accommodation space into the accommodation space."
  ],
  "description_excerpt": "The present invention relates to a jig used when a polycrystalline silicon-packed box is produced and a method for producing a polycrystalline silicon-packed box.\n\nPolycrystalline silicon used for, for example, raw materials for silicon semiconductors or raw materials for solar cells is produced in a rod shape. The polycrystalline silicon rod is then cut and/or crushed for ease of use as a raw material in subsequent steps. As a result, the polycrystalline silicon rod is processed into polycrystalline silicon chunks each having a predetermined size. These polycrystalline silicon chunks are packed into bags so that a predetermined amount of the polycrystalline silicon chunks are packed in each of the bags. The bags are then packed in transportation cases and are shipped. Conventionally, such packing in bags and boxes have been manually performed in general as disclosed in patent Literature 1. It is desired that such packing and packaging are automated in the future for enhanced operation efficiency and power saving.\n\nHowever, automating the packaging as described above raises a problem as follows. Each of polycrystalline silicon chunks has an irregular shape and an angulated fracture surface and has a sharp portion. Therefore, a bag that accommodates the polycrystalline silicon chunks easily breaks. In addition, when an upper portion of a bag in which the polycrystalline silicon chunks are packed is held and the bag is lifted, each of the polycrystalline silicon chunks shifts to a lower portion. This results in an increase in width of a part of the bag.",
  "cpc": [
    "B65B 5/105",
    "B65B 2220/18",
    "B65B 35/16",
    "B65B 35/24",
    "B65B 43/54",
    "B65B 5/024",
    "B65B 5/08",
    "B65B 5/108",
    "B65B 61/20",
    "B65B 61/207",
    "B65G 15/58",
    "Y02E 10/546"
  ],
  "ipc": [
    "B65B 35/16",
    "B65B 35/24",
    "B65B 5/10"
  ],
  "assignees": [
    "Tokuyama Corp"
  ],
  "inventors": [
    "Takahisa Imai",
    "Kazuhiro Kawaguchi"
  ],
  "filing_date": "2022-03-29",
  "publication_date": "2025-07-15",
  "grant_date": "2025-07-15",
  "priority_date": "2021-04-28",
  "application_number": "US-202218286473-A",
  "family_id": "83544342",
  "cited_by_count": 0,
  "citations": [
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  ]
}