The door prop apparatus disclosed herein is configured to secure a door in a partially opened position relative to a door frame defining a doorway, in various aspects. The door prop apparatus includes a mounting member adapted to attach to the door frame latch jamb and thereby secure the apparatus to the latch jamb, in various aspects. The door prop apparatus includes a latch receiving member adapted to receive the door latch therein, in various aspects. As the door is urged from an open position towards a closed position, the latch receiving member receives the door latch therein and thereby secures the door in the partially opened position, in various aspects. The door handle is operable to retract the latch into the door and thereby release the door from the secured partially opened position, in various aspects. Related methods are disclosed.

The door prop apparatus disclosed herein is configured to secure a door in a partially opened position relative to a door frame defining a doorway, in various aspects. The door prop apparatus includes a mounting member adapted to attach to the door frame latch jamb and thereby secure the apparatus to the latch jamb, in various aspects. The door prop apparatus includes a latch receiving member adapted to receive the door latch therein, in various aspects. As the door is urged from an open position towards a closed position, the latch receiving member receives the door latch therein and thereby secures the door in the partially opened position, in various aspects. The door handle is operable to retract the latch into the door and thereby release the door from the secured partially opened position, in various aspects. Related methods are disclosed.

A lock assembly comprising a throw bolt, a bolt holder and a bolt keeper. The bolt comprises a cutting barrier and a bolt casing, the bolt casing being more corrosion-resistant than the cutting barrier, and the cutting barrier being more abrasion-resistant that the bolt casing. When assembled, the cutting barrier will be enclosed within the bolt casing.

A telescopic bracket has a retracted state and an extended state. The telescopic bracket comprises a fixed assembly, a moving member, and a spring. The moving member is movably coupled to the fixed assembly to move along an axial direction of the fixed assembly, causing the telescopic bracket to switch between the retracted state and the extended state. The spring is disposed between the fixed assembly and the moving member to provide an elastic restoring force to the moving member, and the cross section of the spring could be a trapezoidal shape, a rectangular shape, a square shape, a parallelogram shape, or an unequal quadrilateral shape. An open-up device using the telescopic bracket is also provided.

A vehicle door device includes: a braking control unit applying a braking force to a swing door of a vehicle by controlling an operation of a braking device; and an action position detection unit detecting an action position of the swing door. The braking control unit sets a strong opening prevention boundary on a closing direction side from a fully open position as a mechanical opening action limit of the swing door and applies a braking force to the swing door that opens on an opening direction side from the strong opening prevention boundary.

A vehicle door device includes: a braking control unit applying a braking force to a swing door of a vehicle by controlling an operation of a braking device; and an action position detection unit detecting an action position of the swing door. The braking control unit sets a strong opening prevention boundary on a closing direction side from a fully open position as a mechanical opening action limit of the swing door and applies a braking force to the swing door that opens on an opening direction side from the strong opening prevention boundary.

A door stop includes a scissor link member including a pair of links pivotably coupled together at a central pivot point. The scissor link member has a first end pivotally coupled to a door and a second end pivotally coupled to a floor. The pair of links are configured to abut against one another adjacent the central pivot point when the door is fully open to prevent pivoting at the central pivot point for holding the door open. The scissor link member is releasable such that the pair of links pivot about the central pivot point when the scissor link member is released, thereby enabling closing of the door. The pair of links fold into a nested arrangement when the door is fully closed. The pair of links are configured to deform under dynamic loads to protect the surrounding aircraft structure and indicate a need for inspection.

A door stop rod assembly includes a base having a room defined therein. A neck and a yoke are respectively connected to two opposite ends of the base. The collapsible part is connected to the neck. The yoke includes a notch against which the door knob contacts. A warning device is located in the room of the base and includes a circuit, a power supply, a buzzer, a vibration detector, a static electricity sensor and a switch. When the vibration detector detects vibration from the door knob due to exterior touch of the door knob, the circuit activates the buzzer to warn the persons inside the house.

A door stop rod assembly includes a base having a room defined therein. A neck and a yoke are respectively connected to two opposite ends of the base. The collapsible part is connected to the neck. The yoke includes a notch against which the door knob contacts. A warning device is located in the room of the base and includes a circuit, a power supply, a buzzer, a vibration detector, a static electricity sensor and a switch. When the vibration detector detects vibration from the door knob due to exterior touch of the door knob, the circuit activates the buzzer to warn the persons inside the house.

A device for holding the trunk lid of a vehicle in an open position, includes an elongated telescopic member adapted to be adjusted in length, a locking system for holding the elongated member in a selected position, and first and second holding mechanisms provided at opposed ends of the elongated member. The first and second holding mechanisms are adapted to be attached to a lower closed loop provided on the trunk sill and to an upper latching mechanism provided on the inside of the trunk lid of the vehicle.