Recording apparatus with intermittent power usage
AssigneeMitogiken, Ltd.
InventorKeigo Kobayashi
Life of this patent
Estimating the term…
Abstract
Battery-operated, dot type recording apparatus which is so constructed that the recording paper feed and the recording operation are alternately executed in short times and that a measuring instrument is actuated only during a period of time covering time intervals before and after each recording operation, the actuation of the measuring instrument and the recording paper feed as well as the recording operation being carried out at good timing in a short period of time, whereby the consumption of the battery is low, no high power is required at a time, and the recovery time of the battery suffices, so that the battery is of long life.
Claims14
In dot type recording apparatus which has a power source, and dotting means and recording paper feed means, both being operated by said power source, and in which recording is executed by said dotting means causing a pointer of a meter operated by a measuring instrument to hit the recording paper, the improvement in such recording apparatus comprising:
- said dotting means and said recording paper feed means having, a motor driving at least two cams and being driven by said power source, and a clock mechanism operated by rotation of said motor;
- an electrical switch in circuit between said power source and said instrument and having "on" and "off" periods of time determined by said clock mechanism;
- said dotting means pressing the pointer of the meter against the recording paper for a fixed dotting period of time by means of one of said cams rotated by said motor;
- said paper feed means intermittently feeding recording paper a fixed length in a short fixed feeding period of time other than the dotting period of time of said dotting means by means of another of said cams being rotated by said motor;
- and
- means for operating said instrument and said meter only during a fixed period of time greater than and including said dotting period of time as determined by said "on" and "off" periods of time of said switch, in interlocking relationship with said dotting means, and thus operating said measuring instrument intermittently.
A portable recording apparatus, comprising:
- a portable source of stored electrical energy;
- an electric drive motor in circuit with said source;
- a mechanical clock mechanism having a mechanical source of stored mechanical energy for driving said clock mechanism and being drivenly connected to said electric motor for increasing its stored mechanical energy with operation of said electric motor;
- switch means operated by said clock mechanism in circuit with said electric motor and power source for providing a repeat pattern of a fixed period of time for operation of said electric motor and a fixed larger period of time when said electric motor is not operated;
- a meter having a movable pointer;
- a measuring instrument for operating the meter to move the pointer in correlation with the change in a value to be measured and recorded, and said pointer having means for marking recording paper;
- means for feeding recording paper past said pointer and including mechanical means driven by operation of said electric motor independently of said clock mechanism for feeding the recording paper only during a fixed feeding period of time that is within and substantially shorter than the operating period of time of said electric motor;
- and
- mechanical means for driving said pointer onto said recording paper for recording only during a fixed recording period within and substantially shorter than said motor operating period, and with said recording period being spaced from said feeding period, and said pointer driving means being driven by said motor independently of said clock mechanism.
Dependencies are inferred from the claim text.