Clip having a clip body and a pressing cover

{
  "publication_number": "US5539963A",
  "country": "US",
  "kind": "A",
  "title": "Clip having a clip body and a pressing cover",
  "abstract": "A clip body having upper and lower clamping pieces which flare continuously and from both ends of a bending portion in a desired width and a pressing cover having upper and lower clamping pieces continuously extending from both ends of a bending portion which is formed so as to provide a desired width, in which tops of the upper and lower clamping pieces are to be engaged with upper and lower parts close to the bending portion of said clip body, and a width formed between the tops being narrower than the maximum width formed between the upper and lower clamping portions of the clip body and wherein the pressing cover being slidably provided on the outer portions of the clip body so that both the upper and lower clamping pieces of the clip body approach each other in a pressing state.",
  "claims": [
    "1. A clip comprising: a clip body having a first pair of upper and lower clamping pieces which flare continuously, wherein a bending portion extends from an end of each of the upper and lower clamping pieces of the first pair to define an opening having a first desired width; and a pressing cover having a second pair of upper and lower clamping pieces continuously extending from both ends of a base portion which is formed so as to define a second desired width, wherein said second pair of upper and lower clamping pieces is to be engaged with said first pair of upper and lower clamping pieces close to the bending portion of said clip body, and wherein a clamping width formed between ends of said second pair of clamping pieces is narrower than the first desired width formed between said first pair of upper and lower clamping portions of the clip body; wherein the other end of said first pair of upper and lower clamping pieces of said clip body are bent inwardly and toward said bending portion; wherein guide grooves are defined in each of said first pair of upper and lower clamping pieces of said clip body, wherein said guide grooves on each of said first pair of clamping pieces are spaced in two rows, and guide pieces are provided on each of said second pair of upper and lower clamping pieces of said pressing cover to engage with said guide grooves; wherein said pressing cover is slidably provided on outer portions of the clip body so that said first pair of upper and lower clamping pieces of said clip body approach each other in a pressing state.",
    "2. A clip as claimed in claim 1, wherein said clip body and said pressing cover are made of an elastic material.",
    "3. A clip as claimed in claim 1, wherein said clip body and said pressing cover are made of an elastic material."
  ],
  "description_excerpt": "1. Field of the Invention\n\nThe present invention relates to a clip used for clamping documents or the like to bind them into a sheaf.\n\n2. Statement of the Prior Art\n\nAs conventional clips, there have been known a double clip the operating lever of which is operated by fingers so that a gap between abutting portions thereof is expanded in use, a ring-shaped zem clip which has been wound doubly, a clip having upper and lower abutting pieces formed by bending an elastic plate-like body and used by employing a predetermined extruding unit (clip mounting unit), and the like.\n\nHowever, in the case of the above double clip, although there are no problems as to clamping force, there are drawbacks. When the double clip is large-sized, large force is required for the operation of widening the distance between the abutting faces, and sometimes the distance between the abutting faces cannot be widened. Also, because the operating lever is obstructive, documents are bulky when bound into a sheaf by the double clip and placed one upon another. The zero clip has such a drawback that, because documents are only clamped between rings, clamping force is weakened whereby bulky documents can be hardly bound in a sheaf.\n\nFurther, in the clip which must use the above extruding unit, force is not required with simple operation and it has sufficient clamping force. However, the clip extruding unit is separately required.",
  "cpc": [
    "B42F 1/006",
    "Y10T 24/203",
    "Y10T 24/44692"
  ],
  "ipc": [
    "B42F 1/00"
  ],
  "assignees": [
    "Tokyo Kinzoku Industry Co Ltd"
  ],
  "inventors": [
    "Hirozumi Fujiwara",
    "Toshimichi Tani"
  ],
  "filing_date": "1994-12-13",
  "publication_date": "1996-07-30",
  "grant_date": "1996-07-30",
  "priority_date": "1994-12-13",
  "application_number": "US-35720494-A",
  "family_id": "23404700",
  "cited_by_count": 21,
  "citations": [
    "GB189415925A",
    "US890241A",
    "AT55548B",
    "US3950829A",
    "US4920614A",
    "JPH034082A",
    "US5349724A"
  ]
}