Sliding door device

• US 8,375,645 B2
• Filed: 03/03/2008
• Issued: 02/19/2013
• Est. Priority Date: 03/05/2007
• Status: Expired due to Fees

• Current Assignee: Niitech Co., Ltd., Sugatsune Kogyo Co., Ltd.
• Original Assignee: Niitech Co., Ltd., Sugatsune Kogyo Co., Ltd.
• Inventors: Iwauchi, Kenji, Morishita, Masazumi, Yamada, Masahito
• Primary Examiner(s): Canfield, Robert
• Application Number:
  US12/530,335
• Publication Number:
  US 20100205865A1
• Time in Patent Office: 1,814 Days
• Field of Search: 522/07, 522/045.1, 52/29, 522/431, 492/09, 492/11, 492/13, 494/25, 49409-411, 491/25, 49127-130
• US Class Current: 52/29
• CPC Class Codes: E05D 15/0656 Bottom guides
• CPC Class Codes: E05D 15/1042 with transversely moving carriage E05D15/1065 takes precedence
• CPC Class Codes: E05D 15/1065 with transversely moving track
• CPC Class Codes: E05D 2015/1055 with slanted or curved track sections or cams
• CPC Class Codes: E05Y 2201/412 for the final closing movement
• CPC Class Codes: E05Y 2201/638 Cams; Ramps
• CPC Class Codes: E05Y 2201/684 Rails; Tracks
• CPC Class Codes: E05Y 2600/452 in or on the floor or wall
• CPC Class Codes: E05Y 2800/21 of identical elements, e.g. of identical compression springs
• CPC Class Codes: E05Y 2800/266 curved
• CPC Class Codes: E05Y 2800/70 Retrofitting of elements
• CPC Class Codes: E05Y 2900/132 Doors

Abstract

A sliding door device has a first pin body provided, at a floor surface; a guide member provided at the door and having a guide groove in which the first pin body fits when the door is closed; and a second pin body that is provided on the floor surface and can be fit in a door groove formed at the door bottom. When the closed door slides in an opening direction and toward the back side of the wall surface, the guide member moves relatively along the first pin body while the first pin body is fit in the guide groove of the guide member. When the door slides further in the opening direction, the second pin body gets in the door groove of the door, and the door slides along the second pin body while the second pin body is fit in the sliding groove of the door.

Claims

1. A sliding door device capable of making a surface of a sliding door in a closed position in plane with a wall surface and arranging the sliding door in an open position on a back side or a front side of the wall surface and in parallel with the wall surface, the sliding door device comprising:

a first pin body provided on a floor surface;

a guide member provided on the sliding door and having a guide groove in which the first pin body fits when the sliding door is in the closed position; and

a second pin body that is provided on the floor surface and can be fit in a sliding door groove formed at a bottom part of the sliding door, wherein,

when the sliding door in the closed position is slid in an opening direction and toward the back side or front side of the wall surface, the guide member moves relatively along the first pin body while the first pin body is fit in the guide groove of the guide member,

when the sliding door is further slid in the opening direction, the second pin body gets in the sliding door groove of the sliding door and the sliding door slides along the second pin body while the second pin body is fit in the sliding door groove of the sliding door,

the first pin body does not jut in an opening when seen from a front side of the sliding door, and

at least a part of the guide member protrudes in a width direction of the sliding door when seen from the front side of the sliding door.

2. The sliding door device of claim 1, wherein after the second pin body gets in the sliding door groove of the sliding door, the first pin body gets out of the guide groove of the guide member.

3. A sliding door system comprising:

the sliding door device of claim 2;

a frame having a wall surface; and

a sliding door accommodated in the frame to be openable and closable.

4. The sliding door device of claim 1, wherein the guide member is provided with a door stopper at the part of the guide member protruding in a width direction of the sliding door when seen from the front side of the sliding door.

5. A sliding door system comprising:

the sliding door device of claim 4;

a frame having a wall surface; and

a sliding door accommodated in the frame to be openable and closable.

6. A sliding door system comprising:

the sliding door device of claim 1;

a frame having a wall surface; and

a sliding door accommodated in the frame to be openable and closable.

7. A sliding door device capable of making a surface of a sliding door in a closed position in plane with a wall surface and arranging the sliding door in an open position on a back side or a front side of the wall surface and in parallel with the wall surface, the sliding door device comprising:

a first pin body provided on a floor surface; and

a guide member provided on the sliding door and having a guide groove in which the first pin body fits when the sliding door is in the closed position;

wherein the guide member moves along the first pin body while the first pin body is fit in the guide groove of the guide member when the sliding door moves from the closed position to the open position,

the first pin body does not jut in an opening when seen from a front side of the sliding door, and

at least a part of the guide member protrudes in a width direction of the sliding door when seen from the front side of the sliding door.

8. A sliding door system comprising:

the sliding door device of claim 7;

a frame having a wall surface; and

a sliding door accommodated in the frame to be openable and closable.

9. The sliding door device of claim 7, wherein the guide member is provided with a door stopper at the part of the guide member protruding in a width direction of the sliding door when seen from the front side of the sliding door.