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.

A door closer mechanism includes a base attached to a door frame, a housing attached to a door panel and a groove formed in the housing, a lever includes one end slidably engaged with the base and another end connected to the housing with a pivot axle, a rotary member is pivotally connected to the housing with the pivot axle, a shaft is slidably engaged in the housing and pivotally connected to the rotary member with a pivot pin, and a spring biasing member is disposed in the housing and engaged with the shaft for applying a spring biasing force onto the shaft and for biasing the shaft toward one end portion of the channel of the base.

A vehicular slide door apparatus includes a guide rail forming a sliding path. A cutout portion in a side wall portion of the sliding path forms an insertion opening for a guide roller. The apparatus includes a fixing portion at a first end portion in the cutout portion, a positioning portion at a second end portion in the cutout portion, a closing member that includes a fixed end fixed to the fixing portion and a free end positioned by the positioning portion and that closes the insertion opening, and a fulcrum forming portion forming a rotation fulcrum for the closing member. The fulcrum forming portion generates biasing force of displacing the free end outward. The free end is positioned in contact against the positioning portion located on an outer side of the sliding path. Thereby, the free end and the side wall portion form a continuous sliding contact surface.

A guide rail includes: a first rail that has a bottom wall on which a load roller rolls and supports the weight of a sliding door; a second rail that has side walls on which two guide rollers roll and defines a moving direction of the sliding door; and a first restriction part that restricts the motion of the load roller in an axial direction.

The aim of the invention is to achieve a door closer arrangement (1) where the force needed for opening the door (2) is not so substantial. The invention comprises a door closer (6), a slide rail (7), and an arm (8) that connects the door closer with the slide rail. The arrangement comprises also a second rail (9), which is arranged to form a slide slope for the door closer (6) and the auxiliary spring arrangement.

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.

The aim of the invention is to achieve a door closer arrangement (1) where the force needed for opening the door (2) is not so substantial. The invention comprises a door closer (6), a slide rail (7), and an arm (8) that connects the door closer with the slide rail. The arrangement comprises also a second rail (9), which is arranged to form a slide slope for the door closer (6).

An anti-jumping upper wheel device with double dampers comprises of an anti-jumping upper wheel assembly with double damper (10) being comprised of an upper wheel plate (11), an upper wheel (12), an upper wheel cover (13) and double dampers (14) and a pulling unit (20); wherein, an anti-jumping roller (17) is mounted to the upper wheel cover (13); the pulling unit (20) is a double-plate pulling unit which is comprised of a baseplate of pulling unit (21) and a pillar plate of pulling unit (22) mounted above it; a pulling pillar (221) is fixed vertically on the pillar plate of pulling unit (22); wherein, connecting elastic units (23, 24) are overlapped and connected in parallel to three branch plates (2131, 2132, 2133, 2141, 2142, 2143) mounted on longitudinal direction in parallel of both ends on longitudinal direction of the baseplate of pulling unit (21).

A guide apparatus for guiding a furniture part, in particular a sliding door or folding-sliding-door, including a guide rail and a chassis which can be connected to the furniture part and which can travel on the guide rail. The chassis has a load-bearing roller, mounted about a first rotation axis, for supporting the weight of the furniture part and a supporting roller for laterally guiding the furniture part. The supporting roller is rotatably mounted about a second rotation axis which is oriented transverse to the first rotation axis, and a support apparatus is separate from the at least one supporting roller, and is designed to relieve the supporting roller in an end position of the at least one guide rail against a transverse force acting laterally, i.e. substantially parallel to the first rotation axis.

A guide device, for guiding a furniture part on a guide rail, includes at least one rolling carriage having at least one rotatably mounted rolling body, via which the at least one rolling carriage can be moveably mounted on a track of the guide rail, and at least one connection device, in particular designed as a hinge, for connecting the guide device to the furniture part. The at least one rolling carriage and the at least one connection device are designed as separate components and can be connected to one another, in particular detachably, via at least one securing device. The at least one securing device has at least one locking element which is mounted on the at least one connection device or on the at least one rolling carriage such that it can rotate and move, preferably transverse to a securing direction of the at least one connection device and the at least one rolling carriage.