Door check apparatus

Patent metadata

Field	Value
Publication number	US-10626641-B2
Application number	US-201816180188-A
Country	US
Kind code	B2
Filing date	Nov 5, 2018
Priority date	Nov 15, 2017
Publication date	Apr 21, 2020
Grant date	Apr 21, 2020

Abstract

A door check apparatus includes a base member configured to be attached to a vehicle door, a threaded rod rotatably held by the base member, a first tubular member including a distal end portion configured to be connected to a vehicle main body, and a base portion. The threaded rod is arranged inside the first tubular member. At least a part of the first tubular member threadedly engages with the threaded rod. The first tubular member performs a relative movement in an axial direction relative to the threaded rod such that the first tubular member causes the threaded rod to rotate. The door check apparatus includes a brake mechanism configured to restrict the threaded rod from rotating.

First claim

The invention claimed is:

1. A door check apparatus comprising:
a base member configured to be attached to a vehicle door;
a threaded rod rotatably held by the base member;
a first tubular member including a distal end portion configured to be connected to a vehicle main body, and a base portion positioned at a side opposite to the distal end portion;
the threaded rod being arranged inside the first tubular member;
at least a part of the first tubular member, the part which is between the distal end portion and the base portion, threadedly engaging with the threaded rod;
the first tubular member performing a relative movement in an axial direction relative to the threaded rod in response to an opening and closing operation of the vehicle door such that the first tubular member causes the threaded rod to rotate; and
a brake mechanism drive-connected to the threaded rod and configured to restrict the threaded rod from rotating such that the brake mechanism restricts the first tubular member from performing the relative movement relative to the threaded rod.

2. The door check apparatus according to claim 1 , further comprising:
a speed increasing mechanism provided between the brake mechanism and the threaded rod, on a power transmission path; and
the speed increasing mechanism transmitting rotations of the threaded rod to the brake mechanism at an increased rotational speed relative to a rotational speed of the threaded rod.

3. The door check apparatus according to claim 2 , wherein the brake mechanism is positioned at an outer side relative to the threaded rod in a radial direction of the threaded rod when seen from a center of rotation of the threaded rod.

4. The door check apparatus according to claim 3 , further comprising:
a second tubular member held by the base member;
the second tubular member being arranged to surround the threaded rod; and
the first tubular member being arranged between the second tubular member and the threaded rod.

5. The door check apparatus according to claim 2 , further comprising:
a second tubular member held by the base member;
the second tubular member being arranged to surround the threaded rod; and
the first tubular member being arranged between the second tubular member and the threaded rod.

6. The door check apparatus according to claim 1 , wherein the brake mechanism is positioned at an outer side relative to the threaded rod in a radial direction of the threaded rod when seen from a center of rotation of the threaded rod.

7. The door check apparatus according to claim 6 , further comprising:
a second tubular member held by the base member;
the second tubular member being arranged to surround the threaded rod; and
the first tubular member being arranged between the second tubular member and the threaded rod.

8. The door check apparatus according to claim 1 , further comprising:
a second tubular member held by the base member;
the second tubular member being arranged to surround the threaded rod; and
the first tubular member being arranged between the second tubular member and the threaded rod.

Assignees

• Aisin Seiki

Inventors

• Ueno Takayuki
• Abe Masato
• Hidaka Dai
• Suzumura Hirokazu

Classifications

• E05Y2201/224

  Stops · CPC title

• E05C17/22

  with braking, clamping or securing means in the guide {(E05C17/203 takes precedence)} · CPC title

• E05F5/06

  Buffers {or stops limiting opening of swinging wings, e.g. floor or wall stops}(E05F5/02 takes precedence) · CPC title

• E05C17/203 Primary

  concealed, e.g. for vehicles · CPC title

• E05Y2900/531

  Doors · CPC title