摘要:
A door opening device for heavy construction equipment is provided. The door opening device for heavy construction equipment is provided with a latch member rotating in a latch housing installed on one side of a door panel, and includes a latch control lever having a hinge part elastically supported on one side of an upper frame or a lower frame of a door, a handle extending from one side of the hinge part, and a yoke formed on the other side of the hinge part, the latch control lever forming a traction force on the yoke when the handle is rotated about the hinge part by an external force; a rotary shaft shaft-engaged with the latch member and having a swing part formed to extend to an outer side of the latch member, the rotary shaft rotating in a body with the latch member so that the latch member is released by the traction force of the latch control lever; and a traction cable having one end fixed to the yoke of the latch control lever and the other end connected to the swing part of the rotary shaft. Even if the assembly of the latch housing and the latch member closes the door on the door panel, the door can be easily opened using the traction force of the latch control lever on the upper part or the lower part of the door that can be easily accessed.
摘要:
A latching mechanism including an engageable latch bolt and latch trigger each adapted to be pivoted from a first preselected position wherein the latch bolt and latch trigger are engaged to a second predetermined position where the latch bolt and the latch trigger are disengaged such disengagement being accomplished by actuation of a latch trigger actuator which overcomes an actuator biasing means which links the latch bolt and the latch trigger.
摘要:
A rotatable drive crank is connected to an actuator and to a link which in turn is connected to a rotatable latch, the latter holding a movable member in a stowed position when the actuator moves the drive crank to a first position and permitting said movable member to move away from said stowed position when said actuator moves the drive crank to a second position. A rotatable retaining lever is coaxial with the latch and one end thereof is biased into engagement with rollers mounted on the drive crank and locks the latter in said second position thereof until the other end of the lever is contacted by the movable member as it returns to its stowed position.
摘要:
A latch assembly is provided where a latch bolt is moveable to open and close a door by unblocking pivotal movement of the latch bolt. Turning a door knob or door handle does not directly result in a corresponding retraction of the latch within a sleeve, but rather unblocks the bolt to freely pivot away from a latched position. In some embodiments, the latch assembly may include a sleeve that allows for a backset to be infinitely adjusted relative to an aperture of the sleeve. In some embodiments, the latch assembly may further include a dead latch to provide additional security against forced entry.
摘要:
An improved latching device that secures a lift-style hood is described with inherent properties for providing increased accessibility, functionality, stability, security and safety as compared to traditional designs.
摘要:
An operating device for operating at least one door of an aircraft comprises a chassis that is fixed and secured to a fuselage of the aircraft, a control handle that is rotationally and translationally movable with respect to the chassis, a mechanism for converting a rotational movement of the control handle into an opening movement of the door. The translational movement allows the control handle to be in an in position in which it is aligned with the exterior surface of the fuselage and an out position in which it projects beyond the exterior surface of the fuselage. The control handle includes a cylindrical body and a head connected to one end of the body. The head of the control handle includes a fixed part rigidly connected to the body of the control handle and extending perpendicular thereto, and a movable part rotatably connected to the body and having a folded-down position against the fixed part and a deployed position in which the control handle has a T shape.
摘要:
A latch having a housing, handle, actuators pawl and rotary pawl torsion spring and two actuator torsion springs. The rotary pawl torsion spring biases the pawl toward the unlatched or opened position. The handle is pivotally attached to the housing and has two paddles tat engage the actuator. The actuator is slidably supported by the housing. Lifting the handle to the open position causes rotating movement of the actuator which in turn causes the pawl to rotate to the unlatched or retracted position.