Abstract:
A tilt mechanism of the type for interconnecting two members in a manner such that the two members may be moved and placed in various positions in relation to one another. The tilt mechanism comprising: an outer mandrel connected to a first member; an intermediate mandrel connected to a second member, the intermediate mandrel being movably disposed about a portion of the outer mandrel; an inner mandrel in functional connection with the outer and intermediate mandrel; a first spring functionally connected about a portion of the outer mandrel and the inner mandrel in a manner such that the first spring resists movement when moved in a first direction and releases tension when moved in a second direction; and a second spring functionally connected about a portion of the intermediate mandrel and the inner mandrel in a manner such that the second spring resists movement when moved in a second direction and releases tension when moved in a first direction.
Abstract:
The device for electrically driving a cable-actuated window regulator comprises a casing, an electric motor driving an endless screw meshing with a toothed ring surrounding a conventional brake box connected to a cable winding drum disposed in the housing. The toothed ring presents a frontal wall obturating the opening of a cylindrical sleeve forming the casing of the brake box. The drum and the frontal wall comprise fingers capable of cooperating with the ends of a helical spring disposed in the cylindrical sleeve.
Abstract:
A window regulator assembly comprising a window panel, a track, a slider member, a slider moving assembly including a drive assembly and a coupling assembly. The track is constructed and arranged to guide the window panel during movement of the window panel between opened and closed positions. The slider member is constructed and arranged to be movable along the track between a first position wherein the window panel assumes the closed position and a second position wherein the window panel assumes the open position. The slider moving assembly is constructed and arranged to move the slider member between the first and second position. The coupling assembly of the slider moving assembly is constructed and arranged to couple an output movement of the drive assembly to the slider member. The drive assembly includes a drivable input structure and a driven output structure, which structures are rotatable about a common axis. The coupling assembly is connected with the output structure to receive the output of the output structure, thereby enabling the coupling assembly to couple the output movement of the drive assembly to the slider member. The drive assembly includes roller and spring members disposed within a housing and constructed and arranged to prevent movement of the output structure upon predetermined external force being applied thereto via the coupling assembly. The output structure has ramp surfaces each converging toward the housing. Each of the ramp surfaces frictionally engages an associated one of the rollers, the rollers being biased by the spring members in a converging surface direction towards the converging surfaces between the ramp surfaces and the housing. The rollers are thus biased into wedging relation between the ramp surfaces and the housing. Friction between the ramp surfaces and the associated rollers during application of the predetermined external force to the output structure urges rolling movement of the rollers in the converging surface direction and into further wedging relation between the ramp surfaces and the housing.
Abstract:
A tilt adjustment mechanism having an upper housing, a lower housing and a shaft assembly is disclosed. The shaft assembly receives the gears which are pressed on either end of shaft. The shaft fits through locating slots in the lower housing. Each of the gears are activated by internal gears located on each side of the upper housing. The internal gears are integrally formed with the upper housing. The upper housing is hinged on the lower housing and can rotate 20 degrees. The shaft assembly mechanism provides a torsion bar function to insure that the upper housing moves evenly with respect to the lower housing. Even motion in the upwards and downwards directions of the housing is provided by even rotational torsional motion and opposite rotational torsional motion of the shaft assembly of the tilt adjustment mechanism. The shaft assembly mechanism decouples the frictional load in the two different rotational directions about its shaft. This permits the adjustment of the forces to optimal levels in both directions. A relatively high force is desired to move the upper housing in a downward direction. This prevents the operator's touches on a display tablet, mounted to the upper housing to cause the tilt adjustment mechanism to move in the downward direction. A relatively low force is required to move the tilt adjustment mechanism in the upwards direction.
Abstract:
There is disclosed a friction hinge assembly that can be inexpensively produced having a shaft and, in the simplest embodiment, one sheet metal part. In the preferred embodiment, the friction band and the bracket are one piece. In order to achieve the necessary alignment between the axis of the friction band and the axis of the shaft, the configuration of the mounting hole for the shaft is elongated only along one axis. This provides clearance for necessary manufacturing tolerances without introducing additional backlash. In another embodiment, proper alignment is assured by slotted mounting holes for mounting the friction bands to the bracket.
Abstract:
A laptop computer (10) with a tiltable and swivelable display (12) is connected to case (29) by a pivot mechanism (20) and a swivel mechanism (33). In the pivot mechanism (20), a first pivot (22) connects display (12) to a pivot plate (50), and the second pivot (24) connects the pivot plate (50) to base (32) of the display (12). The first pivot (22) consists of a pair of pivot pins (52) on each end of the pivot plate (50). The second pivot (24) consists of split pivot pins (54) at each end of the pivot plate (50). The pivot pins (54) and inboard shafts (58) are fastened together and inboard shafts (58) rotate within outboard shafts (56). The outboard shafts (56) and the inboard shafts (58) are surrounded by clutch springs (60), which are connected so that the clutches are in their free rotating direction, i.e., does not resist motion between them when the display is being opened, and which resist motion between the inboard shafts (58) and outboard shafts (56) when the display is being lowered, to produce a greater friction than produced by the first pivot (22). The swivel mechanism (33) consists of a first swivel member (70) fixedly attached to case (29) and a second swivel member (72) which is fixedly attached to display base (32) and nests inside the first swivel member (70). The second swivel member (72) rotates inside the first swivel member (70).
Abstract:
A window actuating system, especially in a motor vehicle, including a guide rail, an entrainment device for a window glass plate supported at the guide rail, a force transmission member engaging at the entrainment device, a drive member for the force transmission member attached to the guide rail and selectably with a manual drive unit arranged to be remote from the guide rail or a motorized drive unit coupled with the drive member, the drive member being provided with a reverse brake, especially a wrap around spring brake, and the motorized drive unit being attached directly at the drive member or at the drive rail in the region of the drive member.
Abstract:
A window regulator for operating a slidable window panel. The window regulator includes a drive drum mounted for rotation in a wire winding direction to wind a first wire having one end mounted on a window panel carrier and in a wire unwinding direction to unwind the first wire. A driven drum is mounted for rotation in a wire winding direction to wind a second wire having one end mounted to the carrier and in a wire unwinding direction to unwind the second wire. The drive and driven drums come into connection with each other for rotation of the driven drum in unison with the drive drum only when the drive drum rotates in its wire unwinding direction. A device is provided for making a connection between the drive and driven drums for rotation of the driven drum in unison with the drive drum in response to rotation of the drive drum in its wire winding direction.
Abstract:
A device for controlling the opening and closing movement of a duct seal door of an automatic ice maker which requires a regulator for slowing down the closing of the door. The movement of the door about its rotational axis is transmitted via connecting linkages to the closure regulator which comprises a rotor positioned within a stator housing. The rotor's movement is coupled to the connecting linkages via a one-way clutch which decouples the rotor when the door is being opened, and causes positive coupling therebetween when the door is being closed. Disposed within the stator housing in a fixed-volume compartment is a viscous fluid, such as silicone gum. The rotor and stator include opposed rippled surfaces between which the viscous fluid is coactively disposed. The fluid acts as an impedance to the motion of the rotor, which motion occurs only upon the closing of the door, to thereby provide a controlled slow closure thereof.
Abstract:
A device for preventing the reversal of a power window motor, wherein when the motor is normally actuated, a coiled spring loosely fitted on a core coupled with a worm gearing is contracted by the core, and the friction between the outer periphery of the coiled spring and the inner periphery of a drum is weakened, so that an output piece is rotated to open or close window glass, while when it is intended to manually push down or pull up the window glass, the coiled spring is expanded by a dog of the output piece, and the friction is strengthened, so that the turning of the dog is checked to brake the output piece.