Door check apparatus

• US 10,626,641 B2
• Filed: 11/05/2018
• Issued: 04/21/2020
• Est. Priority Date: 11/15/2017
• Status: Active Grant

• Current Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Original Assignee: Aisin Seiki Co., Ltd. (Aisin Corp.)
• Inventors: Ueno, Takayuki, Abe, Masato, Hidaka, Dai, Suzumura, Hirokazu
• Primary Examiner(s): Mah, Chuck Y
• Application Number:
  US16/180,188
• Publication Number:
  US 20190145137A1
• Time in Patent Office: 533 Days
• CPC Class Codes: E05C 17/203 concealed, e.g. for vehicles
• CPC Class Codes: E05F 5/00 Braking devices, e.g. checks; Stops; Buffers construction of pneumatic or liquid braking devices E05F3/00; braking devices, buffers or end stops on drawers for tables, cabinets or like furniture A47B88/473; combined with devices for holding wings open E05C17/00; devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing E05C17/04
• CPC Class Codes: E05F 5/06 Buffers or stops limiting opening of swinging wings, e.g. floor or wall stopsE05F5/02 takes precedence
• CPC Class Codes: E05Y 2201/224 Stops
• CPC Class Codes: E05Y 2201/702 Spindles; Worms
• CPC Class Codes: E05Y 2900/531 Doors

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.

Claims

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.