US3792207A - Electric motor driven timing relay with components disposed on one side of supporting frame - Google Patents

Electric motor driven timing relay with components disposed on one side of supporting frame Download PDF

Info

Publication number
US3792207A
US3792207A US00310879A US3792207DA US3792207A US 3792207 A US3792207 A US 3792207A US 00310879 A US00310879 A US 00310879A US 3792207D A US3792207D A US 3792207DA US 3792207 A US3792207 A US 3792207A
Authority
US
United States
Prior art keywords
gear
motor
base plate
relay
energized
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
US00310879A
Other languages
English (en)
Inventor
H Knie
A Muhling
H Schmidt
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of US3792207A publication Critical patent/US3792207A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F3/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork
    • G04F3/06—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork with electric driving mechanisms

Definitions

  • An electric motor driven timing relay has a speedreducing gear train having input and output gears and with all of its gears journaled on shafts fixed to a base plate, the electric motor driving the input gear when energized and the output gear having an element fixed on it which rotates with it through a circular path, an electric switch being provided with an actuator positioned in this rotative path and a setting wheel being provided which releasably connects with the output gear for moving the latter to any of a range of rotative positions from which to start its rotation when the motor is energized.
  • the gear journaling shafts are fixed to the base plate to project from only one side of the base plate and the motor and its connecting means, the switch and its actuator, and the setting wheel are also all positioned on this same side. This permits all of the relay parts to be assembled without reversing the base plate or working on its opposite sides, thus facilitating manual and particularly automated assembling operations.
  • the shafts are fixed to the base plate with the rotative elements being journaled thereon 'rotatively.
  • This has the advantage in that changing of the gears of the gear train is simplified and assembly of the parts is to some extent facilitated.
  • the drive motor, and the gears and the setting wheel are positioned on different sides of the base plate, this undesirably impeding the assembly of the various parts during the manufacture of the relay. Assembly requires working on the opposite sides of the base plate, making manual assembly troublesome and automated assembly particularly difficult.
  • One object of the present invention is to provide such a relay with a construction such that without losing its advantageous features, assembly of its parts is facilitated to a degree permitting complete automation.
  • This object is attained by making the base plate with all of its mounting members, shafts and all other parts, so that they extend or project from only one side of the base plate. No reversal or inversion of the base plate is required during assembly of any of the relay parts.
  • FIG. 1 is a perspective view schematically showing the assembly of the parts with the driving motor about to be installed.
  • FIG. 2 is an end view of the motors housing face plate which faces the base plate.
  • the base plate 1 is shown with its assembly side facing the viewer, all parts assembling work being done on this side only.
  • the gear train shafts 2 through 5 all extend from this side, these shafts being fixed non-rotatively to the base plate 1.
  • the speedreducing gear train includes an input gear 6 journaled on the shaft 2, intermediate gears 7 and 8, respectively journaled on the shafts 3 and 4, and an output gear 9 journaled on the shaft 5.
  • the time delay setting wheel is a crown gear 10 which meshes with a gear 11 also journaled on the shaft 5. All of these gears may be freely slid onto their respective shafts from the same side of the base plate 1.
  • the crown gear 10 is mounted by a bracket 12 formed as an integral, right anguarly bent portion of the base plate 1, extending from the plates assembly side, the wheel 10 having three hooks which ride symmmetically in a circular hole 12a formed in the bracket 12. These hooks 10a permit rotation of the wheel 10 but provide enough friction to hold it against easy rotation.
  • This crown gear 10 has a slot 13 formed in it so that a manual setting knob 14 provided with a flat shank 15 fitting the hole 13 may be used to rotate the gear 10 and, therefore, the gear 11, the friction between the hooks 10a and the bracket 12 thereafter maintaining the position fixed by rotation of the knob 14. Other releasable locking means could be used.
  • the gear 11 is rigidly fixed to an abutment pin 16 which projects from the side of this gear 11 away from the base plate 1.
  • a torsion spring 17 has one end locked to the gear 11, as by being hooked over this pin 16, the other end of this spring 17 being connected with the output gear 9.
  • This torsion spring 17 acts to constantly bias the output gear 9 to turn in a clockwise direction as the parts are viewed in FIG. 1, the gear 9 having a follower pin 18 rigidly projecting towards the gear 11, the pins 16 and 18 being oriented so that they can interengage.
  • the gear 11 turned counterclockwise through the interengaging pins 16 and 18, turns the wheel 10 in the same direction against the bias of the torsion spring 17 to any desired position, further counterclockwise rotation of the output gear 9 being possible because the pin 18 can freely disengage from the pin 16.
  • the shaft 5 on which the gears 9 and 1 l are journaled has a projecting end 19 on which an electric switch actuating lever 20 is journaled.
  • the gear 9 has an axially offset pin 21 projecting from it so that this pin travels in the circular path of the gear 9, the lever 20 having an arm located in this circular path so that with rotation of the gear 9 to a degree determined by the relays timing, the pin 21 engages and swings the lever 20.
  • the portion of the lever engaged by the pin 21 is not under any frictional engagement because this portion and the pin travel in the same circular path.
  • the lever 20 is a two-armed lever, its left-hand arm actuating an electric switch 22 mounted by a bracket 23 formed by a bentportion of the plate 1 which projects in the same direction as all the other parts, from the same side of this plate.
  • the lever motion affects actuation of the switch contacts through a toggle or snapacting member 24 so that the switch contacts positively snap between their opened and closed positions.
  • a setting screw 25 on the switch actuating lever arm provides for adjustment of the switching moment of the toggle element or snap acting device.
  • the gear train is driven by a synchronous electric motor 26 which is provided with a slide rotor pinion 27 which is moved towards the base plate by the motors rotor rotation.
  • a release spring 28 pushes the slide rotor into its released position whenever the motor 26 is de-energized, the pinion 27 then disengaging from the input gear 6 with which it meshes when the motor is energized.
  • the housing of the motor 26 has two oppositely extending mounting brackets 29 in which mounting holes are formed and through which mounting screws 30 are passed.
  • the plate 1 has motor mounting brackets 31 bent to project from the same side of the plate 1 previously mentioned, these brackets having right angular arms having holes for the screws 30.
  • the gear 27 When the gear 27 moves towards the base plate when the motor 26 is energized, it must be indexed or positioned relative to the input gear 6 to mesh accurately with the latter.
  • the face plate of the motor 26 facing the base plate 1 is formed with a hearing hole 32 into which the end 2a of the shaft 2 enters when the motor is installed and fastened to the brackets 31.
  • This hole 32 is positioned relative to the pinion 27 so that when the shaft end 2a is in the hole 32 the pinion 27 can move inwardly, accurately indexed with the gear 6.
  • This timing relay is set as to its desired delayed action time by means of the setting knob 14 which through the setting wheel, or crown gear, turns the gear 11 one way or another, its abutment pin 16 cooperating with the follower pin 18 under the action of the torsion spring 17 which biases the output gear 9, and therefore this pin 18, to turn in a clockwise direction.
  • This spaces the pin 21 on the output gear 9 a thus predetermined distance from the portion of the lever which is in the circular traveling path of this pin 21.
  • the setting wheel 10 retains its set position as previously described, thereby holding the gear 11 against inadvertent rotation.
  • a time delay relay including a speed-reducing gear train having input and output gears and with all of its gears joumaled on shafts fixed to a base plate, an electric motor, means for connecting said motor to drive said input gear when said motor is energized, an element fixed on said output gear to rotate therewith through a circular path, an electric switch having an actuator positioned in said path, and a setting wheel releasably connecting with said output gear for moving the latter to any of a range of rotative positions from which to start its rotation when said motor is energized; wherein the improvement comprises a switch actuator comprising a lever joumaled on the same shaft on which said output gear is joumaled and having a portion engaged by said output gears element, said gear train shafts projecting from only one side of said base plate, and said gear train gears, said motor and its said connecting means, said element, said switch and actuator lever, and said setting wheel all being positioned only on said one side of said base plate regardless the configuration thereof.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Electromechanical Clocks (AREA)
  • Gear-Shifting Mechanisms (AREA)
US00310879A 1971-12-04 1972-11-30 Electric motor driven timing relay with components disposed on one side of supporting frame Expired - Lifetime US3792207A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2160301A DE2160301B2 (de) 1971-12-04 1971-12-04 Zeitrelais mit elektromotorischem Antrieb

Publications (1)

Publication Number Publication Date
US3792207A true US3792207A (en) 1974-02-12

Family

ID=5827054

Family Applications (1)

Application Number Title Priority Date Filing Date
US00310879A Expired - Lifetime US3792207A (en) 1971-12-04 1972-11-30 Electric motor driven timing relay with components disposed on one side of supporting frame

Country Status (7)

Country Link
US (1) US3792207A (xx)
JP (1) JPS5417820Y2 (xx)
BE (1) BE792251A (xx)
DE (1) DE2160301B2 (xx)
FR (1) FR2162208A1 (xx)
IT (1) IT971388B (xx)
NL (1) NL7215254A (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9848716B2 (en) 2013-10-08 2017-12-26 Fasteners For Retail, Inc. Vending shelf
US9959696B2 (en) 2014-06-19 2018-05-01 Fastners For Retail, Inc. Resiliently biased actuator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2408581B2 (de) * 1974-02-22 1978-09-28 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltuhr mit einem auf Stehbolzen einer Platine gelagerten Getriebe
FR2382046A1 (fr) * 1977-02-23 1978-09-22 Amiens Const Elect Mec Dispositif selecteur et indicateur de deroulement de programmes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1203357B (de) * 1962-09-01 1965-10-21 Siemens Ag Zeitrelais mit Synchronmotor und Zahnradgetriebe
US3281547A (en) * 1963-10-31 1966-10-25 American Mach & Foundry Range timer having parallel walls which include first and second magnetic portions
US3501602A (en) * 1964-06-29 1970-03-17 Mallory & Co Inc P R Sequential timer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1203357B (de) * 1962-09-01 1965-10-21 Siemens Ag Zeitrelais mit Synchronmotor und Zahnradgetriebe
US3281547A (en) * 1963-10-31 1966-10-25 American Mach & Foundry Range timer having parallel walls which include first and second magnetic portions
US3501602A (en) * 1964-06-29 1970-03-17 Mallory & Co Inc P R Sequential timer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9848716B2 (en) 2013-10-08 2017-12-26 Fasteners For Retail, Inc. Vending shelf
US9959696B2 (en) 2014-06-19 2018-05-01 Fastners For Retail, Inc. Resiliently biased actuator

Also Published As

Publication number Publication date
DE2160301A1 (de) 1973-06-07
DE2160301B2 (de) 1973-09-13
DE2160301C3 (xx) 1974-04-04
JPS4871371U (xx) 1973-09-07
BE792251A (fr) 1973-03-30
IT971388B (it) 1974-04-30
NL7215254A (xx) 1973-06-06
FR2162208A1 (xx) 1973-07-13
JPS5417820Y2 (xx) 1979-07-07

Similar Documents

Publication Publication Date Title
US3792207A (en) Electric motor driven timing relay with components disposed on one side of supporting frame
US3725617A (en) Alarm clock timer with switch actuating lever operable by cam or manual adjustment mechanism
US4683768A (en) Transmission ratio selector
US3665348A (en) Time delay relay
US3973443A (en) Timing relay having an electric motor device
US3225151A (en) Time delay relay structure
US2802978A (en) Distant control device for rotatingly positioning a shaft on precise preset positions
US3648529A (en) Intermittent motion transmission
US2313064A (en) Time switch
US3150241A (en) Pushbutton timer
US3454909A (en) Synchronous-motor time-delay relay
US4381431A (en) Hand set timer
US3947789A (en) Motor timer
US3281548A (en) Interval timer
US3550458A (en) Mechanical timer
US3774127A (en) Motor timer
US3123192A (en) Direction control means for bi-directional motors
US4160221A (en) Unique timing device construction
US3272931A (en) Timer mechanism having cam-solenoid actuator and common coil for solenoid and motor
US3947790A (en) Automatic reset timer
US3961345A (en) Opening and closing means for electrically controlled shutters
US4276528A (en) Electric motor-driven timer
US2232519A (en) Timing device
JPS6299Y2 (xx)
US3967077A (en) Appliance timer switch assembly