# US 12,006,747 B2 · Sliding door device

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- Number: US 12,006,747 B2
- Document ID: US12006747B2
- Status: Granted
- Kind: B2
- Application number: 17/632,177
- Filed: 2020-05-27
- Published: 2022-07-21
- Granted: 2024-06-11
- Earliest claimed: 2019-08-09
- Assignees: Sugatsune Kogyo Co., Ltd.
- Applicants: Sugatsune Kogyo Co., Ltd.
- Inventors: Tadashi Iijima; Kazuma Mori; Takuma Komoto
- Web page: https://patentgrep.com/patent/US12006747B2

## CPC

- E05D 15/10: movable out of one plane into a second parallel plane
- E05D 15/1042: {with transversely moving carriage (E05D15/1065 takes precedence)}
- E05F 1/16: for sliding wings
- E05F 5/003: {for sliding wings (Fasteners specially adapted for holding sliding wings open E05D13/04)}
- E05D 2015/1055: {with slanted or curved track sections or cams}
- E05Y 2201/624: Arms
- E05Y 2201/64: Carriers
- E05Y 2201/684: Rails; Tracks
- E05Y 2201/686: Rods, links
- E05Y 2600/12: by manual operation
- E05Y 2800/205: forming a unit
- E05Y 2800/24: of springs and brakes
- E05Y 2800/244: arranged in serial relationship
- E05Y 2900/132: Doors
- E05D: HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS (pivotal connections in general F16C11/00)
- E05F: DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05Y: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF

## Abstract

Provided is a sliding door device which can move a support shaft attached to a sliding door along an inclined portion of a rail by using a pull-in device. The rail (6a) is provided with the straight portion (11) for linearly guiding the support shaft attached to the sliding door (2) and the inclined portion (12) which is inclined with respect to the straight portion (11) and obliquely guides the support shaft. The straight portion (11) of the rail (6a) is provided with the pull-in device (15) which can capture a trigger (18) provided on the straight portion (11) of the rail (6a) and linearly move along the straight portion (11) of the rail (6a) when the sliding door (2) is closed. A pull-in force transmission part (20) for moving the support shaft along the inclined portion (12) of the rail (6a) is coupled to the pull-in device (15).

## Claims

### Claim 1

A sliding door device, comprising:
a rail having a straight portion for linearly guiding a support shaft attached to a sliding door and an inclined portion which is inclined with respect to the straight portion and obliquely guides the support shaft;
a pull-in device having a base, a catcher slidable relative to the base, and a spring disposed between the base and the catcher, which can capture a trigger provided on the rail and which can only linearly move along the straight portion of the rail when the sliding door is closing; and
a pull-in force transmission part which is coupled to the pull-in device and moves the support shaft along the inclined portion according to linear movement of the pull-in device,
wherein the pull-in force transmission part includes:
a roller traveling body which can travel on at least the inclined portion of the rail, and
an arm rotatably coupled to the roller traveling body and the pull-in device,
wherein the support shaft is supported by the roller traveling body.

### Claim 2 (depends on 1)

The sliding door device as claimed in claim 1, wherein the arm includes one or more links.

### Claim 3 (depends on 1)

The sliding door device as claimed in claim 1, wherein the pull-in force transmission part includes a roller travelling body which can travel on the rail and which is rotatably coupled to the pull-in device, and
wherein the support shaft is supported by the roller traveling body.

### Claim 4

A sliding door device, comprising:
a rail having a straight portion for linearly guiding a support shaft attached to a sliding door and an inclined portion which is inclined with respect to the straight portion and obliquely guides the support shaft;
a trigger which can be captured by a pull-in device having a base, a catcher slidable relative to the base, and a spring disposed between the base and the catcher and which can only linearly move along the straight portion of the rail when the sliding door is closing; and
a pull-in force transmission part which is coupled to the trigger and moves the support shaft along the inclined portion according to linear movement of the trigger,
wherein the pull-in force transmission part includes:
a roller traveling body which can travel on at least the inclined portion of the rail, and
an arm rotatably coupled to the roller traveling body and the pull-in device,
wherein the support shaft is supported by the roller traveling body.

### Claim 5 (depends on 4)

The sliding door device as claimed in claim 4, wherein the arm includes one or more links.