Counter mechanism
AssigneeCalifornia Injection Molding Co., Inc.
InventorsJames A. Prentice, John George Mitchell
Life of this patent
Estimating the term…
Abstract
A resettable mechanical counter having a plurality of number wheels and transfer pinions is mounted in a molded plastic housing in which are integrally formed fixed bosses that index the transfer pinions when the number wheels are reset. The transfer pinions are axially located by means of slots formed in the housing and the number wheels are axially located relative to the reset lever mechanism which itself is axially located relative to the housing to thus position the transfer pinions relative to the number wheels.
Claims11
In a counter having a housing, a plurality of number wheels rotatably mounted in the housing, a plurality of transfer pinions interposed between and engaged with the number wheels and shiftable out of engagement therewith during resetting of the wheels, and a reset mechanism for resetting the number wheels and shifting the transfer wheels out of engagement with the number wheels, the improvement comprising
- a pair of mutually spaced side arms forming part of said housing,
- a plurality of indexing bosses formed integrally with and extending between both said side arms of said housing, said bosses being configured and positoned to mate with and to reset respective transfer pinions as the pinions are shifted to a position out of engagement with said number wheels, said bosses strengthening and rigidifying said housing.
In a counter having a housing, a plurality of number wheels rotatably mounted in the housing, a plurality of transfer pinions interposed between and engaged with the number wheels and shiftable out of engagement therewith during resetting of the wheels, and a reset mechanism for resetting the number wheels and shifting the transfer wheels out of engagement with the number wheels, the improvement comprising
- a plurality of fixed indexing bosses formed integrally with said housing, said bosses being configured and positioned to mate with and to reset respective transfer pinions as the pinions are shifted to a position out of engagement with said number wheels, each said pinion including a radially outwardly projecting circumferential flange and said housing having a plurality of grooves formed therein for slidably receiving said flanges or respective pinions and axially positioning said pinions during motion thereof relative to said number wheels.
A counter comprising
- a housing,
- a plurality of number wheels rotatably mounted in said housing,
- a shaft mounted in said housing for sliding motion radially of said number wheels and spaced therefrom,
- a plurality of transfer pinion means rotatably mounted on said shaft and engaged with said number wheels for transmitting rotation of one of said wheels to others of said wheels,
- reset lever means pivoted to said housing for resetting said number wheels and shifting said shaft and transfer pinions from engagement with said number wheels,
- a plurality of bosses integral with said housing and positioned to index said transfer pinions upon shifting of said pinions from said number wheels, said housing being formed of an integral plastic body having a pair of mutually spaced base arms and first and second end standards connecting said arms to each other at opposite ends of said arms, said wheels and pinions being mounted between said standards, said bosses being integral with and bridging the space between said base arms to firmly connect said arms to each other.
Dependencies are inferred from the claim text.