Abstract:
The present invention provides a vehicle door, wherein a drive unit for raising and lowering a glass plate is constructed so that a plurality of pulleys across which wires are laid are provided at upper and lower sides of a base panel, the glass plate is moved up and down by driving the wires, the glass plate is prevented from moving in a vehicle inward direction when the door is closed, wire fixing portions are prevented from being damaged by great upward and downward stroke movements of the glass plate, and furthermore, the wires are prevented from slackening when the wires are driven and stopped. This is realized by providing a supporting rod along an upward and downward movement locus of the glass plate and a contact member which has no contact with the supporting rod, by forming trumpet-shaped guide portions at hole edges of the wire fixing portions, and by V-shaping the circumferential surfaces of a tensioner for eliminating slack of the wires.
Abstract:
This motorized reduction gear comprises a rotor equipped with a rotor shaft, a reduction gearbox (2) containing a gearwheel (3) in mesh with an endless screw of the shaft, a damper (5) housed in the wheel, and secured thereto so that they rotate as one; the single-piece damper has peripheral cut-outs (8) designed to accommodate, on the one hand, radial fins (7) of the wheel and, on the other hand, elements (10) for driving an output member (11), and the edges of the cut-outs are chamfered (38). The chamfers ensure that the angular deflection of the damper as a function of the torque is gradual and make it easier to fit automatically onto the hub of the gearwheel.
Abstract:
A snow thrower (10) includes a rotatable wheel (12) for collecting the snow and a chute (14) for throwing the snow away from the snow thrower (10). The snow thrower (10) includes a motor (22) and a battery (24) connected thereto for providing power to the motor (22), which in turn drives a drive belt (28) to rotate the rotatable wheel (12). The battery (24) may be removed and replaced by sliding same out of the thrower housing (16), and includes spring biased contacts between the housing (16) and battery terminals to cause electrical connection therebetween.
Abstract:
A snow thrower (10) includes a rotatable wheel (12) for collecting the snow and a chute (14) for throwing the snow away from the snow thrower (10). The snow thrower (10) includes a motor (22) and a battery (24) connected thereto for providing power to the motor (22), which in turn drives a drive belt (28) to rotate the rotatable wheel (12). The battery (24) may be removed and replaced by sliding same out of the thrower housing (16), and includes spring biased contacts between the housing (16) and battery terminals to cause electrical connection therebetween.
Abstract:
A window regulator employs a drive cable to regulate opening and closing of a window in a vehicle. The drive cable is attached to a glider which is attached to the window, and extends around a loop which includes first and second guide elements and a drive drum. Rotation of the drive drum causes movement of the cable which in turn causes movement of the window. One of the guide elements is coupled to a torsion spring which causes the guide element to be forced outward to increase the circumference of the loop traveled by the cable and thereby to maintain tension on the cable. The guide element may take the form of a rotatable pulley.
Abstract:
A van door slidable in tracks (16, 18 and 20). An operating module is mounted inside the van adjacent center track 18. A front cable attached to drive pulley (144) extends through guide assembly (54) to hinge and roller assemble (26). A rear cable attached to drive pulley (136) extends through guide assembly (56) to hinge and roller assembly (26). The drive pulleys (136 and 144) each have a large diameter spiral cable groove (164), a small diameter cable groove (208) and a transition cable groove (210). A motor rotates the drive pulleys. The small diameter cable grooves drive the door when the door is in the forward portion of the tracks. The large diameter spiral cable grooves drive the door when the door is in the center and rear portions of the track. Fixed idler rollers (226 and 254) are positioned relative to the cable drive pulleys to insure that the total cable in the continuous cable loop is substantially the same when the cable is driven by the small diameter cable grooves as when the cable is driven by the large diameter spiral cable grooves. A cable tension system (220) maintains cable tension. A slack cable take-up pulley (174) on the drive pulley (136) is locked in position by teeth (194) thereon and arcuate tooth rack (172) which move into engagement by rotation of the drive pulley (144) relative to drive pulley (136).
Abstract:
A sliding gate control device consisting of an elongated rack member that is resiliently mounted across the lower extremities of a sliding gate that is movable by guide structure, and a control unit mounted adjacent to the guideway actuatable to provide a pinion gear drive for engagement with said rack member thereby to slidably move the gate laterally across the right of way. Adjustable tension assemblies provide the resilient rack mounting that assures a continual positive rack/pinion engagement for reliable operation.
Abstract:
A light beam transmitter and receiver are located in or near a door opener enclosure, and fiber optics connect the transmitter and receiver to the sides of the door opening. Lens arrangements are attached to the ends of the optic cables and are mounted near the bottom of the door frame. Thus, the transmitter and receiver do not need to be located near the door which eliminates the need for wiring from the enclosure to the door area and protects the transmitter and detector from physical abuse at the doorway.
Abstract:
An automatic tension adjusting mechanism for a winding and transmitting device for an automatic door includes a base fixed in a casing; a mount for a transmission wheel around which a belt is wound; the mount being disposed on the base slidably in the right and left directions where the mount forces the belt to be strained and relaxed, and being resiliently energized at all times in one of the directions where the mount forces the belt to be strained; a saw-toothed stop part provided on the mount and adapted to extend in the right and left directions; and an engagement piece provided on the base and adapted to be moved between an engagement starting position with the stop part and a disconnection position from the stop part; a spring between the base and the engagement piece for energizing the engagement piece in a direction where the engagement piece is engaged with the stop part; a tapped hole made in one of the members of the base and the mount; and a bolt screwed into the tapped hole. Two locking states are made selectable: one is a first locking state wherein the bolt is tightened, whereby the engagement piece is fixed at the engagement starting position; the other is a second locking state wherein the engagement piece is fixed at the disconnection part. The bolt is loosened to set the engagement piece to an unlocked state, whereby the engagement piece is resiliently engaged with the stop part.
Abstract:
A process for controlling the movement of a motorized door is disclosed. Also, a control apparatus that has a close loop feedback system for use in controlling a motorized door is disclosed. The invention provides for improved safety by incorporating improved obstacle sensing thresholds through the use of a comparator system.