Checker-equipped door hinge device for use in vehicle
AssigneeRikenkaki Kogyo Kabushiki Kaisha
InventorYumiko Minegishi
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AssigneeRikenkaki Kogyo Kabushiki Kaisha
InventorYumiko Minegishi
Estimating the term…
A checker-equipped door hinge device for use in a vehicle includes a check force generating mechanism having a central shaft fixed to a female bracket, a cylinder block fixed to a male bracket and having a cylinder portion, a piston slidably fitted into the cylinder portion, a detent roller supported by the piston, a check spring for urging the piston, and a detent groove provided on an outer peripheral face of the central shaft and with which the detent roller is engaged by urging force of the check spring. The male bracket includes male arm portions for sandwiching the cylinder block inside female arm portions, and a male base portion connected to the male arm portions. The male arm portion is fixedly secured to the cylinder block, and opposite end parts of the central shaft extending through the male arm portion are fixedly secured to the female arm portion.
A checker-equipped door hinge device for use in a vehicle, the device comprising a female bracket (1) that is formed from a female base portion (1a) adapted to be fixedly secured to one of a body (B) and a door (D) and a pair of female arm portions (1b) rising from opposite side ends of the female base portion (1a), a male bracket (2) that is disposed between the pair of female arm portions (1b) while having a male base portion (2a) adapted to be fixedly secured to the other of the body (B) and the door (D) and is relatively pivotably linked to the female arm portions (1b) via a hinge pin (5), and a check force generating mechanism that is arranged between the female and male brackets (1, 2) and generates a check force for the door at a predetermined degree of opening position of the door, this check force generating mechanism comprising a central shaft (6) that is fixed to the female bracket (1) and disposed around the hinge pin (5), a cylinder block (7) that is fixed to the male bracket (2) and disposed so as to relatively rotatably surround the central shaft (6) and has a cylinder portion (7b) projecting toward one side of the central shaft (6), a piston (22) that is slidably fitted into an inner peripheral face of the cylinder portion (7b), a detent roller (26) that is supported by the piston (22) and can roll on an outer peripheral face of the central shaft (6), a check spring (23) that urges the piston (22) toward the outer peripheral face of the central shaft (6), and at least one detent groove (27c, 27m1, 27m2, 27o) that is provided on the outer peripheral face of the central shaft (6) and with which the detent roller (26) is resiliently engaged by means of an urging force of the check spring (23) at the predetermined degree of opening position of the door (D),
Dependencies are inferred from the claim text.