US3733911A - Time switch apparatus - Google Patents

Time switch apparatus Download PDF

Info

Publication number
US3733911A
US3733911A US00193292A US3733911DA US3733911A US 3733911 A US3733911 A US 3733911A US 00193292 A US00193292 A US 00193292A US 3733911D A US3733911D A US 3733911DA US 3733911 A US3733911 A US 3733911A
Authority
US
United States
Prior art keywords
lug
switch
time
cam cylinder
charge cam
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00193292A
Other languages
English (en)
Inventor
Y Matsuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec Precision Corp
Original Assignee
Nidec Copal Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nidec Copal Corp filed Critical Nidec Copal Corp
Application granted granted Critical
Publication of US3733911A publication Critical patent/US3733911A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C23/00—Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals
    • G04C23/14—Mechanisms continuously running to relate the operation(s) to the time of day
    • G04C23/16—Mechanisms continuously running to relate the operation(s) to the time of day acting only at one preselected time or during one adjustable time interval
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/11—Tripping mechanism
    • Y10T74/114—Retarded
    • Y10T74/115—Plural, sequential, trip actuations

Definitions

  • ABSTRACT A time switch apparatus wherein the switch can positively and instantaneously perform changeover action twice in succession at small intervals of time therebetween, exactly at a pre-set time with no relevance to either the vibration applied thereto externally or to the site wherethis apparatus is placed, by the arrangement comprising a time-setting ring having a lug and being rotatably mounted on a stationary shaft, a charge cam cylinder rotatably as well as thrustwardly slidably mounted on the stationary shaft and having a flange portion slidably contacting the lug and also having a cam portion and a recessed portion which are both formed on the flange portion, and a switch-actuating member mounted on the charge cam cylinder for sliding movement permitted only in the direction of thrust and operatively coupled to a clock mechanism and having an end face portion designed so as to slidably receive therebetween the lug in cooperation with the flange portion and also having a recessed portion formed on
  • the present invention is concered with a time switch, and more particularly, it relates to a time switch apparatus arranged so that a switch means can be changed over of its connection unfailingly and instantaneously at certain time intervals in the order of, for example, open-close-open upon the arrival of a pre-set time.
  • Another object of the present invention is to provide a relatively inexpensive time switch apparatus arranged so that the opening and closing actions of the contact of the switch can be performed instantaneously also even in case an ordinary leaf switch or the like is employed.
  • Still another object of the present invention is to provide a time switch apparatus arranged so that the apparatus can be incorporated with no difficulty in a clock as a detachable unit of the clock mechanism and that it will never give any adverse effect on the time-making actions of the clock mechanism.
  • FIG. 1 is a front view of the essential part of an embodiment of the time switch apparatus of the present invention
  • FIG. 2 is a sectional view taken along the line IIII in FIG. 1, in which some parts are shown as a side elevation;
  • FIGS. 3a, 3b, 3c and 3d are exploded views of some parts in their different state of action, respectively, as seen in the direction of the arrow III in FIG. 2;
  • FIG. 4 is a perspective view of the lug
  • FIG. 5 is a perspective view of the charge cam cylinder.
  • reference numeral 1 represents a time-setting ring having a gear portion la and also having time-indicating graduations formed on the external circumferential face 1b thereof and further having a cavity 10 formed on the inner side thereof and being rotatably mounted on a base plate 3 by a shaft 2.
  • Numeral 4 represents a manually operable member mounted rotatably on the base plate 3 and having a gear portion 4a meshing with the gear portion 1a and being assigned to set the required time-indicating graduation to a stationary pointing member or the like not shown by externally manually turning the timer-setting ring 1 about the shaft 2.
  • Numeral 5 represents a lug having an inclined face 5b and a vertical lateral face 5c and being secured to the timer-setting ring 1 by a screw 5a within the cavity 10.
  • Numeral 6 represents a charge cam cylinder rotatably and thrustwardly slidably mounted on the shaft 2 and being urged to slide towards the right relative to the timer-setting ring 1 in FIG. 2 by a coil spring 7 which is loosely wound around the shaft 2, and having a flange portion 6a and also having a cam portion 6b and a stepped portion 6c which are both formed on a part of the flange portion 6a so as to face each other and which are engageable with the lug 5, and further having a screw 6d secured thereto.
  • Numeral 8 represents a cylindrical switch-actuating member having stepped portions 8a and 8b which are formed on a part of the end face of this member so as to face each other and having a slot 8c capable of slidably receiving the screw 6d and also having a flange portion and being mounted on the charge cam cylinder 6 so as to be able to slide only in the direction of thrust and being urged to slide towards the left relative to the charge cam cylinder 6 in FIG. 2 by a coil spring 9 which, in turn, is loosely wound around the external circumferential face of the charge cam cylinder 6.
  • the lug 5 in its state shown in FIG.
  • FIGS. 3a, 3b 3c and 3d are explanatory illustrations showing the mutual positional relations between the charge cam cylinder 6, the switch-actuating member 8 and the lug at the respective stages, i.e., before the arrival of the set time of the timer (illustrated in FIG. 3a), at the arrival of the set time (illustrated in FIG. 3b), and at the completion of the switching actions (illustrated in FIGS. 30 and 3d), respectively.
  • the timer-setting ring 1 is rotated to an appropriate extent by means of the manually operable member 4 to set, by utilizing the time-indicating graduations formed on the external circumferential face 1b of the ring 1, a required selected time to the stationary time-pointing member not shown, and thus it is possible to set the time at which the switch is to be actuated.
  • the lug 5 at such a time operates so as to separate the switch-- actuating member 8 away from thecharge cam cylinder 6 sideways as seen in FIG. 2 against the forces of the springs 7 and 9, respectively, rendering these two members 8 and 6 to the state in FIG. 3a.
  • the charge cam cylinder 6 and the switchactuating member 8 are rotated clockwise together at their positions in FIG. 1 by the rotary member which constitutes a part of the clock mechanism.
  • the stepped portion 8b is brought into engagement with the lateral face 50 of the lug 5.
  • the switch-actuating member 8 is caused to make a quick leftward sliding movement from its position in FIG. 2 by the action of the spring 9 so that its end face is brought into contact with the flange portion 6a of the charge cam cylinder 6, resulting in the state shown in FIG. 3b. In this state of these members, the switch 11 is closed.
  • the stepped portion 60 is then brought into engagement with the lateral face 5c of the lug 5. Accordingly, the charge cam cylinder 6 and the switch-actuating member 8 are caused to slide integrally towards the right in their positions shown in FIG. 2 by the action of the spring 7 to be rendered to the state shown in FIG. 30, and the switchactuating member 8 is quickly brought back again to its position shown in FIG. 2. As a result, the switch 11 is opened again. Thereafter, owing to the continued rotation of both the charge cam cylinder 6 and the switchactuating member 8, the cam portion 6b of the charge cam cylinder 6 is brought into engagement with the inclined face 5b of the lug 5.
  • the charge cam cylinder 6 is forced to slide towards the left in its position shown in FIG. 2 against the force of the spring 7 to thereby be rendered first to the state shown in FIG. 3d and then is restored to the position shown in FIG. 3a.
  • the length of time from the time at which the switch 11 is closed till it is opened again i.e., the period of closure of the switch 11 is determined by the phase difference between the stepped portion of the charge cam cylinder 6 and the stepped portion 8b of the switchactuating member 8. Accordingly, this difference in phase is to be determined at the time of designing the apparatus of the present invention so as to meet the use.
  • the apparatus of the present invention can be incorporated in a clock by the following simple procedure, i.e., first by assembling the parts together and then by securely inserting the coupling pins 8d and 8e of the switch-actuating member 8 in the coupling holes 10a and 10b which are formed on one 10 of the members of the clock mechanism, and thereafter securing the base plate 3 to an appropriate site of the body of the clock.
  • the assembling of this apparatus in a clock apparatus can be accomplished quite easily and it can be removed as equally easily also at the time of repair.
  • the apparatus of the present invention not only can be utilized conveniently as an automatic operating means of an alarm clock or a siren device, but also it can be as equally conveniently utilized also in such a case where it is desired to obtain an electric signal of a certain duration at a predetermined time, or in case it is intended to suspend the conduction of electric current continuously for a certain period at a predetermined time by the provision of a switch as shown by broken lines in FIG. 2.
  • a time switch apparatus comprising:
  • a rotatable timer-setting ring having time-indicating graduations formed on the circumferential surface thereof
  • a time switch apparatus provided concentrically with said timer-setting ring for relative rotation with respect to said timer-setting ring and for axial sliding movement and having a flange portion slidably contacting said lug and further having a stepped portion and a cam portion both of which are 2.
  • said cam portion is formed as an inclined plane
  • said lug has, formed thereon, an inclined surface engageable with said cam portion and a vertical lateral surface engageable with said stepped portions.
  • a time switch apparatus in which said timer-setting ring has a gear portion coupled to an externally operable manipulating member.
  • a time switch apparatus in which said switch-actuating member has a plurality of coupling pins for detachably coupling said switchactuating memberto a clock mechanism.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Predetermined Time Intervals (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
US00193292A 1970-11-04 1971-10-28 Time switch apparatus Expired - Lifetime US3733911A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10941670 1970-11-04

Publications (1)

Publication Number Publication Date
US3733911A true US3733911A (en) 1973-05-22

Family

ID=14509681

Family Applications (1)

Application Number Title Priority Date Filing Date
US00193292A Expired - Lifetime US3733911A (en) 1970-11-04 1971-10-28 Time switch apparatus

Country Status (2)

Country Link
US (1) US3733911A (de)
DE (1) DE2154883C3 (de)

Also Published As

Publication number Publication date
DE2154883C3 (de) 1978-05-24
DE2154883B2 (de) 1977-09-29
DE2154883A1 (de) 1972-10-05

Similar Documents

Publication Publication Date Title
US3614363A (en) Cam switch unit
US3733911A (en) Time switch apparatus
US2847525A (en) Timers
US3742159A (en) Multi-cam timer with clutch means allowing independent cam adjustment and rotation of cam assembly independent of motor
US2440142A (en) Time control device
US4021626A (en) Mechanical light switch timer
US2352156A (en) Timing mechanism
US2782274A (en) Low cost clock switch
US3225151A (en) Time delay relay structure
US3306997A (en) Limit switch control for a motor drive
US3640142A (en) Combination speed reduction and escapement means
US3652814A (en) Reciprocating and rotatable cam actuating means for electromechanical timers
US3150241A (en) Pushbutton timer
US2913048A (en) Timer
US2313064A (en) Time switch
US4186284A (en) Electrical switch assembly having rotary and axially operated switches
US3454730A (en) Timing mechanism
US2808478A (en) Control apparatus
US3227826A (en) Timer switch mechanism
US2638979A (en) Control device
US3264441A (en) Push to start mechanism
US4232511A (en) Time detecting device for a clock
US2481333A (en) Electric switch mechanism
FR2345627A1 (fr) Ensemble d'entrainement pour deplacer un element entre deux positions d'extremite
US3740502A (en) Alarm clock timer with manually operable reset mechanism