Abstract:
In a switch unit which is equipped with a seesaw switch and a rotary switch, the seesaw switch and the rotary switch are arranged in a manner so that an axis of a swing fulcrum, i.e., swing shaft, of a knob, and an axis of a rotary shaft of a wheel intersect one another.
Abstract:
A compound operation input device includes a casing; an operating lever accommodatable in the casing in such a manner that the lever is depressingly operable from a neutral position in a pressing-movement direction and swingingly operable from the neutral position in two opposite swinging directions intersecting the pressing-movement direction; a position detector accommodatable in the casing and adapted to output a signal in accordance with a swing of the lever; a pressing member facing an end surface of the lever on the pressing-movement direction side; and a press switch facing the pressing member with a depressible portion of the switch facing a direction substantially orthogonal to the pressing-movement direction and the swinging directions of the lever. The pressing member is adapted to move toward the switch when pressed by the end surface of the lever so as to depress the depressible portion of the switch.
Abstract:
A main body portion has fixed contacts and houses movable contacts. A lower electrode plate and upper electrode plate serving as the movable contacts are deformed at a time of a pressing operation. The upper electrode plate is contactable to the lower electrode plate and lower electrode plate brings contact pairs mounted in a center of the bottom inside the main body portion into conduction. On the bottom inside the main body portion, contacts serving as fixed contacts for a rotating operation are formed on the circumference of the same circle outside contact pairs for the pressing operation. A brush serving as the movable contacts is secured to a lever receiving rotating operational forces and brings contacts into conduction.
Abstract:
In the stepping or indexing drive of a character drum having secured thereat a pinion, wherein there is provided an actuation plunger for rotary motion of the pinion in the one direction and another actuation plunger for rotary motion of the pinion in the other direction, there must be prevented that the character drum while rotating from one index position to the next can be stopped and remain in an intermediate position between two index positions. For this purpose, there is provided a movable locking or detent element which coacts with both actuation plungers and with inclined surfaces formed at the switch housing. This locking or detent element is brought by each individual actuation plunger, at the start of its actuating path, into a locking position for the other actuation plunger and retained in this locking position to positively prevent simultaneous actuation of both actuation plungers.
Abstract:
A forward and rearward indexible stepping mechanism, for instance for a multi-position switch, which is arranged within a housing and has a one-piece drive which can be brought into engagement with a rotatably arranged pinion by means of a linear work movement. At the drive there is provided a flexible latching element which connects two plungers in a bridge-like fashion, so that a latching cam arrangement formed at the latching element engages at the pinion.
Abstract:
Multiposition bi-directional rotary means for a switch or the like includes a rotary ratchet operated by two actuating push levers. Two advance levers or pawls are slidably and pivotally mounted and engage this ratchet from opposite radial directions. Each advance lever has means for engaging the ratchet to rotate the ratchet one step to an adjacent position and means to engage the ratchet and releasably hold it in a position. One lever rotates it in one direction the other lever rotates it the opposite direction. A single spring engages both advance levers to urge them radially inward toward the ratchet. Other springs urge the advance levers or pawls tangentially of the ratchet toward projected at-rest positions. The push levers have projections to engage the advance levers for effecting lineal sliding movement and permitting pivoting of such advance levers relative to the ratchet and the push levers.
Abstract:
A multi-position switch for a decade resistor capable of changing the resistance between a pair of terminals monotonically from 0 to 9 units in ten equal steps in one direction and back to 0 in the eleventh step in the same direction. One resistor of unit resistance value is connected in series with four resistors of 2-unit resistance value between the terminals, and the switch contacts are arranged so that the terminals are shorted together in a first position and in each successive position the unit value resistance is alternately included in series between the terminals or short-circuited and replaced by an additional 2-unit resistor.
Abstract:
A rheostat type of switch with a centrally pivoted switch lever, a plurality of spaced contacts on one side of the axis and an elongated circuit contact on the other side. A resilient contact strip carried by the lever engages, at one of its ends, one of the spaced contacts and, at the other of its ends, the elongated contact. When the lever is rotated to establish a new circuit, a cam means moves the contact strip away from all contacts.