Vertical-column folding mechanism for treadmill

{
  "publication_number": "US12023544B2",
  "country": "US",
  "kind": "B2",
  "title": "Vertical-column folding mechanism for treadmill",
  "abstract": "A vertical-column folding mechanism for a treadmill is provided, including a treadmill frame body and a vertical column; where a first connector is arranged on the treadmill frame body; the first connector includes a first through hole; a connecting rod is arranged at the first through hole; one end of the connecting rod is provided with a handle in an eccentrically rotatable manner; a second connector is sleeved on the connecting rod; the vertical column is arranged on the second connector, and the vertical column and the second connector can synchronously rotate; a first locating piece is arranged on the second connector or the vertical column; a second locating piece cooperating with the first locating piece is arranged on the first connector or the treadmill frame body.",
  "claims": [
    "1. A vertical-column folding mechanism for a treadmill, comprising a treadmill frame body and a vertical column, wherein a first connector is arranged on the treadmill frame body; the first connector comprises a first through hole; a connecting rod is arranged at the first through hole; one end of the connecting rod is provided with a handle in an eccentrically rotatable manner; a second connector is sleeved on the connecting rod; the vertical column is arranged on the second connector, and can rotate synchronously with the second connector; a first locating piece is arranged on the second connector or the vertical column; a second locating piece cooperating with the first locating piece is arranged on the first connector or the treadmill frame body; when the handle is rotated to enable the first locating piece and the second locating piece to cooperate and be connected with each other, the vertical column is limited; wherein an elastic member is arranged on the connecting rod; one end of the elastic member resists against one wall of the second locating piece, and the other end resists against one wall of the second connector; wherein the connecting rod comprises a circular part and a non-circular part; the handle is eccentrically rotated at the non-circular part; the second connector comprises a second through hole; the second through hole comprises a first hole part matched with the circular part and a second hole part matched with the non-circular part; and the first hole part comprises a first wall matched with the elastic member.",
    "2. The vertical-column folding mechanism for the treadmill according to claim 1, wherein a mounting hole is formed in the treadmill frame body, and the first connector is fixedly arranged at the mounting hole.",
    "3. The vertical-column folding mechanism for the treadmill according to claim 1, wherein the other end of the connecting rod comprises a stopper used for limiting a transverse movement range of the connecting rod.",
    "4. The vertical-column folding mechanism for the treadmill according to claim 3, wherein the stopper and the connecting rod are integrally formed, and a diameter of the stopper is greater than that of the first through hole.",
    "5. The vertical-column folding mechanism for the treadmill according to claim 1, wherein the end of the handle connected to the connecting rod comprises an outwards protruding part.",
    "6. The vertical-column folding mechanism for the treadmill according to claim 1, wherein the first locating piece comprises several locating heads; the second locating piece comprises several locating holes matched with the several locating heads; when the several locating heads are snapped into the several locating holes, the vertical column is limited.",
    "7. The vertical-column folding mechanism for the treadmill according to claim 6, wherein the several locating holes of the second locating piece comprise at least two groups of locating holes; when the vertical column is unfolded, the locating heads are clamped to a first group of locating holes of the at least two groups of locating holes in a fitted manner; when the vertical column is folded, the locating heads are clamped to a second group of locating holes, different from the first group of locating holes, of the at least two groups of locating holes in a fitted manner.",
    "8. The vertical-column folding mechanism for the treadmill according to claim 1, wherein the first locating piece also comprises a first limiting head; and the second locating piece comprises a second limiting head used for limiting a motion range of the first limiting head."
  ],
  "cpc": [
    "A63B 21/4035",
    "A63B 22/02",
    "A63B 2210/50"
  ],
  "assignees": [
    "YONGKANG SAIHAN ELECTRONIC TECH CO LTD"
  ],
  "filing_date": "2022-07-06",
  "publication_date": "2024-07-02",
  "grant_date": "2024-07-02",
  "priority_date": "2021-08-16",
  "application_number": "US-202217858121-A",
  "family_id": "79835967",
  "citations": [
    "US2004116255A1",
    "US2009042698A1",
    "US2009069159A1",
    "US2011021323A1",
    "US2013237381A1",
    "US2015051051A1",
    "US2017106233A1",
    "US2021402279A1",
    "US2023405396A1"
  ]
}