A hinge assembly for securing a door on a gaming machine cabinet includes a first flange coupled to the door, a second flange coupled to the cabinet, a first link pair coupled to and extending from the first flange at a first pivot joint, a second link pair coupled to and extending from the first flange at a second pivot joint, a third link pair coupled to the first link pair at a third pivot joint, wherein the third link pair is further coupled to the second flange at a fourth pivot joint, and wherein the third link pair is further coupled to the second link pair at a fifth pivot joint, and a fourth link pair coupled to the second flange at a sixth pivot joint, wherein the fourth link pair is further coupled to the second link pair at a seventh pivot joint.

A key duplicating machine includes: a support structure, a front operational area which is accessible by the operator and which is removably covered and separated, at least partially, from the external environment by a covering and/or protection crankcase movable with respect to said structure of support. At least one key cutter and/or another cutting element, and at least one terminal (12) for locking a key, are housed in the front operational area, a rear containment area, covered and separated from the external environment by a casing mechanically fixed to the support structure, and a control and command unit having a mechanism for moving said crankcase for covering and/or protecting the front operational area, the crankcase being configured to be mounted on a fixed structure of the duplicating machine so as to be able to be moved with respect to the fixed structure.

A safety switch includes a detection unit, an output unit, an input unit; and a display unit. The detection unit is configured to detect presence or absence of abnormality. The output unit is configured to output an abnormality detection signal indicating a detection result of the presence or absence of the abnormality. The input unit is configured to input a display control signal. The display unit is configured to perform display based on the display control signal.

A door open and close mechanism for opening and closing a plurality of doors in a machine tool including a cover. The door open and close mechanism includes a linkage mechanism and a slide mechanism. The linkage mechanism is disposed between an operation door and an intermediate door. The linkage mechanism associates the intermediate door with the opening and closing of the operation door. The slide mechanism is disposed between the operation door and the linkage mechanism. The slide mechanism enables the operation door alone to open and close by a predetermined moving distance. When the operation door is operated to open and close within the moving distance, the operation door alone opens and closes by the slide mechanism When the operation door is operated to open and close beyond the moving distance, the intermediate door opens and closes in association through the linkage mechanism.

A pneumatic control device of auto door includes a first directional control valve configured to control a direction of a compressed air supplied to a door cylinder for opening and closing a door, a door detection sensor configured to detect an open/close state of the door, first and second exhaust lines respectively connected to first and second outlet ports of the first directional control valve, and second directional control valves installed in the first and second exhaust lines respectively to operably exhaust the compressed air exhausted from the first and second outlet ports according to an emergency stop signal, and capable of changing positions to reduce an exhaust speed of the compressed air in case that the door is not completely open or closed when an operation signal is generated after the emergency stop signal.

A protective shroud includes a shroud body, a protective door movably installed on the shroud body, and a buffer mechanism connected between the shroud body and the protective door. The buffer mechanism slows down a moving speed of the protective door. The protective door is moved between an open position and a closed position in a vertical direction to open or close the shroud body.

A locking mechanism for an opening/closing cover supported by an apparatus case in an openable and closable manner includes a rotational gear, a rack gear, a locking member and a spring member. The rotational gear rotates with an opening and closing operation of the opening/closing cover. The rack gear slides with a rotating of the rotational gear. The locking member has a hooking part facing the rack gear. The spring member pushes the hooking part toward the rack gear. The hooking part restricts a sliding of the rack gear in an opened state of the opening/closing cover.

Disclosed is an air conditioner including a first frame including a through hole, a second frame rotatably coupleable to the first frame, the second frame including a burring portion at least a portion of which is insertable into the through-hole in a first direction, where while the burring portion is inserted into the through-hole of the first frame, the burring portion protrudes in the first direction, and a burring hole formed by the burring portion, and a fastening member insertable into the burring hole in a second direction opposite to the first direction and configured to function as a rotary shaft of the second frame, where while the fastening member is inserted into the burring hole, the fastening member protrudes in the second direction.

An automatized mechanical opening/closing device is mounted to an oven mouth of an oven device and includes an outer door frame assembly, an inner door frame assembly, a door panel, a first driving device, and a plurality of second driving devices. The first driving device and the second driving devices are set in electric connection with a control platform is, so that the first driving device is operable to drive the inner door frame assembly to move inside the outer door frame assembly in an X-axis direction and the second driving devices is operable to drive the door panel to move inside the inner door frame assembly in a Y-axis direction. The control platform can be used to set automatized opening and closing operations of the oven mouth of the oven device to thereby save human labor and to reduce material damage due to manual operation.

A vibration-reducing apparatus for an assembly comprising a first member including a latch and a second member including a striker may include a threaded post having arm members extending outwardly therefrom, the threaded post being rotatably advanceable in discrete increments in a threaded opening extending through the first member such that, in a closed position of the first and second members, a distal portion of the threaded post extending through the first member contacts the second member upon rotational advancement of the threaded post in the threaded opening; and a locking region arranged to interact with at least a portion of the arm members, the rotational advancement of the threaded post in the threaded opening and contact with the second member reducing an engagement distance between the latch and the striker with the first and second members in the closed position, and attenuating vibrations between the latch and the striker.