摘要:
A door closer or operator includes a pivoting pinion on the door closer housing for transmitting door motion, and a cam connected thereto. A connecting member extends along a spring and engages the peripheral edge of the cam. Rotation of the cam causes a change in length of the portion of the connecting member between the position tangent to the cam peripheral edge and the spring second end to expand or compress the spring, resulting in a force transmitted along a longitudinal axis of the connecting member as a result of spring deflection. The cam peripheral edge has a profile with a varying radial distance between the cam axis and the connecting member at the position tangent to the cam peripheral edge such that the radial distance is changed as the spring expands or compresses to maintain a desired constant torque about the axis of the cam and pinion.
摘要:
A device may limit opening of a sash hingedly coupled to a master frame, and includes: a bracket attached to the sash; a first arm having a first end pivotally coupled to the bracket; a second arm having a first end pivotally coupled to the first arm's second end; means for biasing the second arm into a retracted position; and a release assembly. The release assembly is secured to the master frame and includes a hook pivotable between a first position and a second position, which, in the first position, may be releasably received in an opening in the second end of the second arm when the second arm is in the retracted position, as the sash is closed and received within the master window frame The second arm is disengaged from the hook, permitting full opening of the sash, when the hook is pivoted into the second position.
摘要:
A personnel access door assembly of an opposing wing of a mine ventilation door. The personnel access door includes a frame including a top portion, a bottom portion, a first post portion and a second post portion, the top frame portion and the bottom frame portion coupled to respective top and bottom ends of the first post and second post portions. The personnel access door further includes sets of trolley wheels affixed to the top or bottom of the frame to engage a top rail or bottom rail affixed on the opposing wing.
摘要:
The present invention relates to an access control device having at least one movably mounted barrier element, which can be moved to a blocking position, in which it blocks access, and an access position, in which access is enabled. In order to enable a variable use in different locations without time-consuming assembly, for example in order to variably delimit different spaces in a casino or an event location, the movable barrier element is mounted on a barrier support which comprises free-standing ground contact means for the anchor-free, position-variable putting up of a barrier element on the ground. A lateral delimitation laterally enclosing and/or extending the at least one barrier element has a modular design and can be assembled from a number of side pieces which can be variably joined end to end under different angles and which together form the lateral delimitation.
摘要:
A demountable modular wall system including a series of individual wall panels that can be positioned adjacent to each other. The demountable system includes a doorway defined by a pair of spaced vertical posts and a horizontal header. In one embodiment, a sliding glass door is movable along a sliding door track mounted to the horizontal header. A lower trim assembly mounted to the bottom end of the sliding glass door adjusts the overall height of the door. The doorway can also include a pivoting glass door. The pivoting glass door includes a bottom pivot assembly having a bottom clamp adjustably positioned along a bottom end of the pivoting glass door. The adjustable bottom clamp can be moved along the bottom end of the pivoting glass door and receives a pivot pin supported on the floor. A top pivot assembly includes a movable plunger that defines a portion of the pivot axis for the pivoting glass door.
摘要:
A partition door system includes a partition door, a stile, and a closing mechanism coupling the partition door to the stile, such that the closing mechanism provides a force for closing the door relative to the stile. A first magnet is at the partition door proximate the stile, and a second magnet is at the stile proximate the door. A partition door including a magnet, a stile including a magnet and a method of operating the same are also provided.
摘要:
The present invention relates to a hood opening and closing device for zero tail type construction machinery that is used to open and close a swing type hood, at which a hinge portion is mounted on a fuel tank in a left-right direction. The hood opening and closing device for zero tail type construction machinery according to the present invention includes: a first sheet that is mounted on an outer side surface of a fuel tank; a pivot plate that is pivotally fixed to the hinge portion which is mounted on the first sheet; the swing type hood that is connected to an upper end of the pivot plate and is opened and closed in the left-right direction through a circular movement about the hinge portion; a second sheet that is mounted on an upper surface of the fuel tank; and a gas spring which has one end fixed to the second sheet and the other end fixed to a bottom surface of the swing type hood and supports, opens, and closes the swing type hood.
摘要:
A home appliance comprises a cabinet having a chamber, a door configured to open or close the chamber by being rotated about a door rotating shaft, and a handle assembly provided at the exterior of a front surface of the door. The handle assembly includes a handle configured to assist a user in opening or closing the door, a handle link rotating shaft, a handle link attached to the handle, and a distance spacer provided between the handle link and the handle link rotating shaft to maintain a distance between the handle link and the handle link rotating shaft. The handle link is rotatable about the handle link rotating shaft as the door is rotated to an open position and extends out of the door in an increasing length as an opening angle of the door increases.
摘要:
A building entryway assembly has the appearance of a fixed sidelight and the functionality of a hinged sidelight. The building entryway assembly includes a hinged main entryway door and at least one hinged sidelight having a lock side that meets the lock side of the main door, such that the sidelight can be selectively opened in addition to the main door when needed to expand the entryway access area. An astragal is fixed to an outer surface of the sidelight at its lock side, and the door threshold includes an astragal boot which aligns with the sidelight astragal when the sidelight is in its closed position. When so aligned, the astragal and astragal boot have the appearance of a fixed astragal extending from the threshold to the header, such that the sidelight appears to be a standard fixed unit with its hinged functionality disguised.
摘要:
A touch-control integrated cabinet includes a temperature control cabinet, a decoration cabinet and an integral cabinet door. One side of the temperature control cabinet has a temperature control cabinet opening. One side of the decoration cabinet has a decoration cabinet opening. The temperature control cabinet opening corresponds in position to the decoration cabinet opening. The cabinet door is pivotally connected to both the temperature control cabinet opening and the decoration cabinet opening to seal the temperature control cabinet opening and the decoration cabinet opening. A touch-control device is provided on the cabinet door for controlling the internal temperature of the temperature control cabinet. The traditional temperature control cabinet door and the decoration cabinet door are combined into an integrated cabinet door. The user can touch and operate the buttons on the surface of the cabinet door to control the internal temperature of the temperature control cabinet.