The present application discloses a sliding door comprising a door body, a supporting structure, a guiding structure, a lower sliding rail module and an upper sliding rail module, the supporting structure and the guiding structure are respectively fixed with the door body; the lower sliding rail module comprises first and second lower sliding rails; the upper sliding rail module comprises first and second upper sliding rails; when the door body, the first upper sliding rail and the first lower sliding rail are on the same plane, the door body is in a closed state, and when the door body, the second upper sliding rail and the second lower sliding rail are on the same plane, the door body is in an open state. Thus, the present application enables the door body to not occupy the width of the doorway in the open state.

The present invention provides an annular roller device for a sliding window/door, which is proposed as a roller device having a new structure wherein the roller device installed under a door sash can move a sliding window/door having heavy weight, and can maximize the open glass portion of the window/door by minimizing the height of the space required to install the roller device, thereby providing a more open view. The roller device has a structure in which, even when a rail installed on a window frame is not horizontal or the bottom portion of a window is not completely flat, all multiple rolling members, which constitute a ring-shaped rolling unit wound around a load-bearing plate (1220) comprising segment bodies (1221, 1222) rotatably connected to each other by a pivot pin (1225) extending therethrough, form contact points with the rail or the bottom portion, and thus each of the rolling members is prevented from being loaded with excessive weight.

A roller assembly for a sliding vehicle door includes a bracket structure having a first and second inner horizontal guide roller arranged to interact with an inner vertical surface of the track member. The bracket structure further includes at least a first and second vertical guide roller arranged to interact with a first inner surface of the track member, a resiliently arranged rotatable member arranged to interact with a second inner surface of the track member and at least one outer horizontal guide roller arranged to interact with an outer vertical surface of the track member.

A door assembly for a restroom stall having first and second opposed side walls and a front opening includes first and second housings defining first and second inner cavities and configured to be mounted on the first and second side walls, first and second doors moveably mounted on the first and second housings, each having opposed inner and outer surfaces that are curved and being moveable along an arcing path between an open position and a closed position. In the open position, the door is retracted within the respective housing and at least partially received in the respective inner cavity, and in the closed position, the door is extended outward of the respective housing relative to the open position. In the closed positions, the first and second doors combine to obstruct the front opening, and in the open positions, the first and second doors permit passage through the front opening.

The invention relates to a sliding security gate inside a pocket attached to an interior pre-hung hinged door. These pocket sliding security gates can be assembled inside any doorway opening of one's home for the protection of babies, toddlers, pets, and disabled elderly. On one hand, the Pre-Hung Hinged Door and Pocket Sliding Security Gate can be used as a dual functioned component that can be used in a normal setting to provide privacy; on the other hand, the Pre-Hung Hinged Door and Pocket Sliding Security Gate can be used as a half door that is assembled as a pocket sliding security gate to provide safety and security to the vulnerable population listed above. In addition, this pocket sliding security gate also has an alarm attached to the security gate so that when it opens, the alarm sounds to let the gatekeeper know that the security has been breached.

A sliding door device for a vehicle, includes: a door that opens or closes a door opening formed in a vehicle body; a door arm having a first end portion connected to the inside of the door and to extend toward a side sill of the vehicle body; a mover disposed to face the door and to be movable along the side sill; a body arm having a first end portion connected to one side of the mover, wherein the body arm is disposed in parallel to the door arm to extend toward the inside of the door; and a roller having an edge portion, respectively coupled to the door arm and the body arm so that the door arm and the body arm relatively move to each other in accordance with rotation of the roller.

A vehicle door system includes, among other things, a vehicle body and a slidable door that is slidable back and forth relative to the vehicle body between an open position and a closed position. The system further includes an alignment bracket assembly having a door-mounted portion and a body-mounted portion. The door-mounted portion and the body-mounted portion are wedged against one another when the slidable door is in the closed position to restrict movement of the slidable door relative to the vehicle body when the slidable door is in the closed position.

A guide system (1) for a sliding door (101) comprises a pair of guides (3, 4) opposite each other to receive the respective opposite edges (103, 104) of a door (101); lifting means (5) for switching the door (101) from a resting position to a sliding position; the lifting means (5) is configured to produce a magnetic field inside one of the guides (3, 4) so as to bring the door (101) from the resting position to the sliding position.

Provided is a guide roller for a vehicle sliding door. The guide roller rolls along a rail located on a vehicle body. The guide roller is pivotally supported in a rotatable manner by a support member coupled to the vehicle sliding door. The guide roller includes a ring-shaped inner race made of metal, a ring-shaped outer race, and a covering member mounted on an outer peripheral surface of the outer race.

The invention relates to a sliding security gate inside a pocket attached to an interior pre-hung hinged door. These pocket sliding security gates can be assembled inside any doorway opening of one's home for the protection of babies, toddlers, pets, and disabled elderly. On one hand, the Pre-Hung Hinged Door and Pocket Sliding Security Gate can be used as a dual functioned component that can be used in a normal setting to provide privacy; on the other hand, the Pre-Hung Hinged Door and Pocket Sliding Security Gate can be used as a half door that is assembled as a pocket sliding security gate to provide safety and security to the vulnerable population listed above. In addition, this pocket sliding security gate also has an alarm attached to the security gate so that when it opens, the alarm sounds to let the gatekeeper know that the security has been breached.