A hinge system includes first and second hinge assemblies. The first hinge assembly includes a first hinge plate with a post and a second hinge plate with a collar configured to selectively receive the post. The second hinge assembly includes a third hinge plate with a counter bore and a keyway and a fourth hinge plate with a key configured to be selectively received within the keyway and the counter bore.

A barrier that includes four structurally different corner connections for fixing a gate frame of the barrier to and between opposing vertical surfaces. A first connection includes a headed straight pin engaging a pivot hook and socket, a second connection includes a headed straight pin engaging a socket, a third connection includes headless bent pin engaging a socket and a limiter, and a fourth connection includes a headless bent pin engaging a socket.

A journal-coupler includes a first portion including a first pair of flanges and a first coupler portion and a second portion that is removably connected to the first portion. The second portion includes a second pair of flanges and a second coupler portion. The first coupler portion and the second coupler portion combine to form an enclosed torque tube portion.

A barrier that includes four structurally different corner connections for fixing a gate frame of the barrier to and between opposing vertical surfaces. A first connection includes a headed straight pin engaging a pivot hook and socket, a second connection includes a headed straight pin engaging a socket, a third connection includes headless bent pin engaging a socket and a limiter, and a fourth connection includes a headless bent pin engaging a socket.

A gate includes a gate barrier, an upper hinge configured to rotatably support the gate barrier about a rotation axis, and a lower hinge configured to rotatable support the gate barrier about the rotation axis. The upper hinge portion may include a first upper hinge portion having a first receptacle and a first ramp disposed adjacent the first receptacle, and a second upper hinge portion having an upper hinge projection configured to engage the first receptacle to inhibit rotation of the first upper hinge portion. The lower hinge may include a first lower hinge portion coupled to the gate barrier, the first lower hinge portion having a receptacle and a lower hinge projection extending from a base of the receptacle, and a second lower hinge portion having an annular projection configured to engage the receptacle and receive the lower hinge projection.

In at least some implementations, a hinge for a vehicle door includes a door hinge adapted to be mounted to a vehicle door and a body hinge adapted to be mounted to a vehicle body. Either the door hinge or the body hinge includes a hinge pin, a void is defined by the other one of the door hinge or the body hinge that does not include the hinge pin, and a retainer is movable relative to the void. The hinge pin is received in the void in an assembled state of the hinge, and the retainer overlaps a retaining surface in an advanced position of the retainer to inhibit removal of the hinge pin from the void. In this way, the vehicle door may be releasably retained on the vehicle body.

A barrier that includes four structurally different corner connections for fixing a gate frame of the barrier to and between opposing vertical surfaces. A first connection includes a headed straight pin engaging a pivot hook and socket, a second connection includes a headed straight pin engaging a socket, a third connection includes headless bent pin engaging a socket and a limiter, and a fourth connection includes a headless bent pin engaging a socket.

The invention relates to a hinge for releasably connecting a door to a frame, including: a frame part for fastening to the frame, a door part for fastening to the door, a hinge pin having a pin axis and a locking element. The frame part and the door part are movable relative to one another along the pin axis between a pivoted position and an installed position; in the pivoted position the frame part and the door part are connected to one another in such a way that the frame part and the door part are pivotable relative to one another about the pin axis between an open position and a closed position. The locking element is adjustable between a locking position and a release position, and the movement of the frame part and of the door part relative to one another along the pin axis from the pivoted position into the installed position is positively inhibited by the locking element the locking position and is freed by the locking element in the release position, the locking element being retained on the frame part or on the door part so as to be adjustable between the locking position and the release position.

An automotive lift-off hinge joint to rotationally connect an automotive door and body comprises first and second door side hinge brackets and a body side hinge bracket. A detent shaft is provided with an interiorly threaded intermediate portion adapted to receive a removable threaded fastener and with a shaped detent shaft feature adapted to engage a similarly shaped pyramidal portion of a guide pin fastened to the body side hinge bracket. The detent shaft is rotationally mounted within a cylindrical check mechanism and secured in relation to the first and second door side hinge brackets. Bushings in door side hinge bracket apertures allow rotation of portions of the detent shaft extending through the apertures. The pyramidal shaped portions are preferably square.

A hinge is provided for hingedly connecting an enclosure door to an enclosure body. The hinge can include a set of hinge leafs, which can include a first leaf and a second leaf, a pin, and a fastener. The pin can extend from the first leaf and can be removably receivable within a pocket in the second leaf. The pin can have a groove extending inward from and around the periphery of the pin and positioned between the proximal pin end and the distal pin end. The fastener can extend into the pocket and at least partially into the groove when the hinge is in a locked configuration, inhibiting the separation of the first and second leafs, and removed from the groove when the hinge is in an unlocked configuration allowing the separation of the first and second leafs.