US3626452A - Multiposition bidirectional rotary means for a switch or the like - Google Patents

Multiposition bidirectional rotary means for a switch or the like Download PDF

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Publication number
US3626452A
US3626452A US3626452DA US3626452A US 3626452 A US3626452 A US 3626452A US 3626452D A US3626452D A US 3626452DA US 3626452 A US3626452 A US 3626452A
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United States
Prior art keywords
ratchet
levers
advance
multiposition
lever
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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
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Inventor
Ronald C Winter
Johnson Creek
Enno Knief
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Cutler Hammer Inc
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Cutler Hammer Inc
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Priority to US289870A priority Critical
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H31/00Other gearings with freewheeling members or other intermittently driving members
    • F16H31/003Step-by-step mechanisms for rotary motion
    • F16H31/005Step-by-step mechanisms for rotary motion with pawls driven by a reciprocating or oscillating transmission member
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05GCONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G7/00Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof
    • G05G7/02Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof characterised by special provisions for conveying or converting motion, or for acting at a distance
    • G05G7/08Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof characterised by special provisions for conveying or converting motion, or for acting at a distance in which repeated movement of the controlling member moves the controlling member through a cycle of distinct positions
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid external to the switch, e.g. by a hand
    • H01H19/001Thumb wheel switches
    • H01H19/003Thumb wheel switches having a pushbutton actuator
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/15Intermittent grip type mechanical movement
    • Y10T74/1526Oscillation or reciprocation to intermittent unidirectional motion
    • Y10T74/1553Lever actuator
    • Y10T74/1555Rotary driven element
    • Y10T74/1556Multiple acting
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/21Elements
    • Y10T74/2133Pawls and ratchets
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00Machine element or mechanism
    • Y10T74/21Elements
    • Y10T74/2133Pawls and ratchets
    • Y10T74/2136Pivoted pawls

Abstract

Multiposition bidirectional rotary means for a switch or the like includes a rotary ratchet operated by two actuating levers. Two advance levers slidably and pivotally mounted to 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. Springs urge each advance lever toward the ratchet and tangentially thereof 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.

Description

United States Patent Inventors Ronald C. Winter Johnson Creek; Enno Knlel, Watertown, both of Wis. [21] Appl. No. 2,898 7 [22] Filed Jan. 14,1970 [45] Patented Dec. 7, 1971 [73] Assignee Cutler-Hammer, Inc.

Milwaukee, Wis.

[54] MULTIPOSITION BIDIREC'IIONAL ROTARY MEANS FOR A SWITCH OR THE LIKE 5 Claims, 5 Drawing Figs.

[52] U.S. Cl. 74/143, 74/577, 74/575 [51] lot. Fl6h 21/02, 005g 1/00 [50] Field of Search 74/143, 575, 577;235/91,92;200/156,153 J 56 Relerences Cited UNHED STATES PATENTS 1,743,478 1/1930 Pratt 74/143 2,269,858 1/1942 Obszarny.. 74/143 2,601,010 6/1952 Trad 200/156 3,299,724 1/1967 Chandler 74/143 3,435,167 3/1969 Pfleger... 200/156 3,504,558 4/1970 Zenner....' 74/143 3,504,559 4/1970 Shaw,Jr.et al..... 74/575 3,544,748 12/1970 Schwab 74/577 ABSTRACT: Multiposition bidirectional rotary means for a switch or the like includes a rotary ratchet operated by two actuating levers. Two' advance .levers slidably and pivotally mounted to 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. Springs urge each advance lever toward the ratchet and tangentially thereof 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.

MULTIPOSITION BIDIRECTIONAL ROTARY MEANS FOR A SWITCH OR THE LIKE BACKGROUND or THE INVENTION 1. Field of the Invention.

This invention relates to multiposition bidirectional rotary means including a rotary ratchet operated selectively by actuating levers. The rotary ratchet controls the position of a switch or other like member and if desired operates a visible position indicator. The actuating levers and advance levers are spring controlled and so related that operation of the ratchet is accomplished without resilient deflection of either of the levers. This increases the life of the device, minimizes friction and provides it with uniform predetermined values.

2. Description of the Prior Art.

Bidirectional rotary operating means for counters and switches have heretofore been operated by electric solenoids,

see U.S. Pat. Nos. 1,831,545; 2,904,250; 2,948,471; and.

2,273,899. None of these patents disclose independent slidably and pivotally mounted spring biased actuating levers.

U.S. Pat. Nos. 3,303,3ll and 3,435,167 disclose a bidirectional rotary operating means for switches which are operated manually by two operating members positioned on opposite sides of a ratchet. In these patents these operating members have yieldably flexible extensions with portions for engaging the ratchet. They do not disclose independently slidable and pivotally mounted spring biased actuating levers for engaging the ratchet.

IN THE DRAWING FIG. 1 is a top plan view of a manually operated multiposition bidirectional switch embodying the present invention, parts being broken away for clarity of illustration;

' FIG. 2 is a view in end elevation of the switch shown in FIG.

FIG. 3 is a schematic plan view showing the mechanical layout, with the rotary ratchet, actuating levers and advance levers embodying the present invention in the fully projected at-rest position;

FIG. 4 is a view similar to that of FIG. 3 with one actuating lever and its associated advance lever activated to the inner position after advancing the ratchet one step counter.- clockwise; and

FIG. 5 is a view in perspective of the one of the actuating levers and an associated advance lever illustrating the pivotal connection and the therebetween relative widths.

DESCRIPTION OF PREFERRED EMBODIMENT Referring to the drawing by reference numerals, the multiposition bidirectional rotary means embodying this invention is shown for the purpose of illustration operatively associated with a rotary selector switch which includes a position indicator number wheel (see broken view parts of FIG. 1). A switch of this type includes a printed circuit board 16 against which a resilient wiper 11 is rotated by a rotary ratchet 12. This switch is mounted in a frame or base 14 on which the printed circuit board 16 is secured. The rotary ratchet 12 in this embodiment is mounted on a spindle 18 which may be formed as an integral part of the base 14. The peripheral face of the number wheel 10 is visibly through a lens 20 in the front sidewall of such base (see FIG. 2). The number wheel 10, as well as the wiper II, is rotated by the ratchet 12. As shown, the ratchet 12 may take the form of a multiple tooth star wheel.

In order to advance the ratchet one step at a time in either direction, there is slidably mounted in the base 14 a pair of advance levers 22 and 24. Each of these levers are positioned to engage the ratchet from essentially opposite radial directions. These advance levers 22 and 24 are shaped as shown in FIGS. 3, 4 and 5. Each one has; (a) a rounded bearing portion 26 which is guided by ribs 28, 30 formed up from the base 14; (b) a spring seat 32 against which a compression spring 34 reacts; (c) a ratchet engaging arm 36, the outer end of which has ratchet hook 38 and a blocking part 40; and (d) a notch 42 by which they are s 44 and 46.

Each of he actuating levers 44 and 46 have: (a) portions 48 which extend through openings in the end wall of the base to be engaged for operating the actuating levers; (b) guide portions 50 which slide against the inner face of wall ,of the base and the printed circuit board 16; (c) fingers 52 providing pivots which cooperate with the notches 42 of the advance levers; and (d) abutrnents 54 which limit the outward movement of the actuating levers. The outer end portions 48 may be provided with indicia such as a plus sign and a minus sign (see FIGS. 2 and 5) to distinguish which advances the ratchet in one direction and which advances it in the opposite direction; the outer portions 48 may provide for coupling to power operated means. These actuating levers 44 and 46 may also be operated lineally by pulling means operating in a rearward direction.

The at rest or fully retracted position of the rotary means is shown in FIG. 3. In this position the springs 34 have caused each advance lever to be pivoted inwardly toward the ratchet l2 and the actuating levers to be moved outward to the limit provided by the abutrnents 54. The bearing surfaces which slidably guide all the levers are those provided by: (a) the portions 48 and the sides of the respective openings through which they project; (b) the guide portions 50 and the respective inner surfaces of the wall of the base 14 and printed circuit board 16; and (c) the bearing portions 26 and the respective surfaces of the ribs 28 and 30. In this at-rest position the blocking parts 40 of the advance levers are seated against the sides of essentially oppositely related teeth of the ratchet as shown in FIG. 3 to keep the ratchet from accidentally moving to another position.

When, for example, the plus sign actuating lever is pressed inwardly the hook 38 on advance lever 24 will engage the adjacent tooth on the ratchet l2 and advance the ratchet one step counterclockwise. The position of the parts at the completion of such advance is shown in FIG. 4. During this advance, the other advance lever 22 is cammed outwardly by the approaching tooth. This moves the hook 38 of lever 22 out of the path of the advancing tooth. When the step is completed the blocking part 40 of the advance lever 22 will snap inwardly to the position shown in FIG. 4 and lock the ratchet 12 against rotation as the plus sign actuating lever is moved outwardly to the at rest position by the spring 34.

When the minus sign actuating lever is pressed inwardly, it will cause the advance lever 22 to rotate the ratchet 12 one step in a clockwise direction in the manner with the respective parts performing described for the counterclockwise rotation.

An important feature of-the arrangement described above is that there is no resilient deflection of any of the advance or actuating levers. The only resilient deflection occurs in the springs 34. Thus these levers, the base, and the ratchet may be formed from rigid materials which will permit these parts to be molded or cast without requiring any machining. The material selected may also have inherent lubricating characteristics which keeps friction to a minimum. Since the only deflection is in the springs 34, calibrations can be easily controlled within close tolerance and uniformity of multitudes of manufactured rotary means easily maintained.

We claim: I. A multiposition bidirectional rotary means for a switch or the like comprising:

a rotatively mounted ratchet for rotating parts connected therewith, said ratchet having spaced teeth therearound; independently slidably and pivotally mounted advance levers positioned to engage said ratchet from radial directions and having means to engage said teeth and rotate said ratchet upon sliding movement of said levers; spring means for (a) urging said advance levers radially inward toward said ratchet and (b) sliding said advance levers tangentially of said ratchet; and slidably mounted actuating levers having means engaging an advance lever to permit relative pivoting therebetween,

. claim 1 in which:

and to effect simultaneous lineal sliding motion of an advance lever and a respective actuating lever. 2. A multiposition bidirectional rotary means as set forth in there is a mounting frame for said rotary means, said frame having bearingportions; said ratchet is a multiple tooth star wheel; and said advance levers have rounded bearing portions in sliding and rocking engagement with said bearing portions on said frame. 3. A multiposition bidirectional rotary means as set forth in claim 2 in which: I

said advance levers have ratchet hooks and blocking parts engageable with the teeth of said star wheel.

cooperating with said notches to provide pivoting and sliding action for said advance levers. 5. A multiposition bidirectional rotary means as set forth in claim ,1 in which: 7 g

said advance levers and said actuating levers are formed of rigid materials and are constrained against resilient deflection.

m gi UNKTED STATES PATENT 0mm CERTIFEQATE or C0 EQ'EEON D d December 7, 1971 Patent No. I 3 626,452

' Inventor) Ronald C. Winter and Enn0 A. Knief It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

' In Column 2, line 2:

Delete "ares" Insert --are.pivota1ly associated with actuating levers-- 8ignedand sealed this 2nd day Of m 1972.

(SEAL) Attest:

EDWARD MBFLETGHER, JR. ROBERT GOIT scams Attesting Officer Commissioner of Patents

Claims (5)

1. A multiposition bidirectional rotary means for a switch or the like comprising: a rotatively mounted ratchet for rotating parts connected therewith, said ratchet having spaced teeth therearound; independently slidably and pivotally mounted advance levers positioned to engage said ratchet from radial directions and having means to engage said teeth and rotate said ratchet upon sliding movement of said levers; spring means for (a) urging said advance levers radially inward toward said ratchet and (b) sliding said advance levers tangentially of said ratchet; and slidably mounted actuating levers having means engaging an advance lever to permit relative pivoting therebetween, and to effect simultaneous lineal sliding motion of an advance lever and a respective actuating lever.
2. A multiposition bidirectional rotary means as set forth in claim 1 in which: there is a mounting frame for said rotary means, said frame having bearing portions; said ratchet is a multiple tooth star wheel; and said advance levers have rounded bearing portions in sliding and rocking engagement with said bearing portions on said frame.
3. A multiposition bidirectional rotary means as set forth in claim 2 in which: said advance levers have ratchet hooks and blocking parts engageable with the teeth of said star wheel.
4. A multiposition bidirectional rotary means as set forth in claim 3 in which: said advance levers have notches; and said actuating levers have guide portions in sliding engagement with said bearing portions on said frame, and fingers cooperating with said notches to provide pivoting and sliding action for said advance levers.
5. A multiposition bidirectional rotary means as set forth in claim 1 in which: said advance levers and said actuating levers are formed of rigid materials and are constrained against resilient deflection.
US3626452D 1970-01-14 1970-01-14 Multiposition bidirectional rotary means for a switch or the like Expired - Lifetime US3626452A (en)

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3748915A (en) * 1972-02-24 1973-07-31 Cutler Hammer Inc Multiposition bi-directional rotary means for a switch or the like
US3822640A (en) * 1971-08-17 1974-07-09 Seikosha Kk Electromagnetically-actuated printing mechanism
DE2318040A1 (en) * 1973-04-11 1974-10-31 Cutler Hammer World Trade Inc Rotating device for a switch or the like
US3952605A (en) * 1974-08-14 1976-04-27 Keeler Brass Company Lock actuator
US4112278A (en) * 1976-11-23 1978-09-05 Cherry Electrical Products Corp. Push button switch
US4558716A (en) * 1983-04-22 1985-12-17 Hydril Company Valve body for multiple valve insert packages
US4805481A (en) * 1986-05-14 1989-02-21 C. Rob. Hammerstein Gmbh Self-locking revolute joint, adjustable to an angle by moving an activation lever back and forth
US4939325A (en) * 1988-05-06 1990-07-03 Contraves Ag Push-button multi-position switch
US5180262A (en) * 1991-05-28 1993-01-19 Westerdale Norman R Adjustable chain vehicle tie-down apparatus
US5588524A (en) * 1995-10-06 1996-12-31 Wu; Ching-Lung Push wheel switch
US6663183B1 (en) * 2002-07-31 2003-12-16 Simon Liao Controlling device for a body support pivotally mounted on top of a stool
US20050030139A1 (en) * 2001-10-18 2005-02-10 Pst Associates, Llc Field converter
US20090229958A1 (en) * 2008-03-11 2009-09-17 Hosiden Corporation Push-button switch
US20100237216A1 (en) * 2009-03-17 2010-09-23 Mircea Napau Power seat height adjuster mechanism

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1743478A (en) * 1927-10-21 1930-01-14 Bell Telephone Labor Inc Magnetic device
US2269858A (en) * 1940-10-21 1942-01-13 Guardian Electric Mfg Co Ratcheting mechanism
US2601010A (en) * 1946-07-24 1952-06-17 Trad Victor Timing device
US3299724A (en) * 1964-10-09 1967-01-24 Eastman Kodak Co Continuous tendency drive arrangement
US3435167A (en) * 1967-08-03 1969-03-25 Frederick W Pfleger Multiposition push-button switch
US3504558A (en) * 1968-03-21 1970-04-07 Extel Corp High-speed web feed escapement mechanism
US3504559A (en) * 1968-04-24 1970-04-07 Veeder Industries Inc Stepped drive mechanism
US3544748A (en) * 1969-05-07 1970-12-01 Mc Graw Edison Co Reversible stepping switch

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1743478A (en) * 1927-10-21 1930-01-14 Bell Telephone Labor Inc Magnetic device
US2269858A (en) * 1940-10-21 1942-01-13 Guardian Electric Mfg Co Ratcheting mechanism
US2601010A (en) * 1946-07-24 1952-06-17 Trad Victor Timing device
US3299724A (en) * 1964-10-09 1967-01-24 Eastman Kodak Co Continuous tendency drive arrangement
US3435167A (en) * 1967-08-03 1969-03-25 Frederick W Pfleger Multiposition push-button switch
US3504558A (en) * 1968-03-21 1970-04-07 Extel Corp High-speed web feed escapement mechanism
US3504559A (en) * 1968-04-24 1970-04-07 Veeder Industries Inc Stepped drive mechanism
US3544748A (en) * 1969-05-07 1970-12-01 Mc Graw Edison Co Reversible stepping switch

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3822640A (en) * 1971-08-17 1974-07-09 Seikosha Kk Electromagnetically-actuated printing mechanism
US3748915A (en) * 1972-02-24 1973-07-31 Cutler Hammer Inc Multiposition bi-directional rotary means for a switch or the like
DE2318040A1 (en) * 1973-04-11 1974-10-31 Cutler Hammer World Trade Inc Rotating device for a switch or the like
US3952605A (en) * 1974-08-14 1976-04-27 Keeler Brass Company Lock actuator
US4112278A (en) * 1976-11-23 1978-09-05 Cherry Electrical Products Corp. Push button switch
US4558716A (en) * 1983-04-22 1985-12-17 Hydril Company Valve body for multiple valve insert packages
US4805481A (en) * 1986-05-14 1989-02-21 C. Rob. Hammerstein Gmbh Self-locking revolute joint, adjustable to an angle by moving an activation lever back and forth
US4939325A (en) * 1988-05-06 1990-07-03 Contraves Ag Push-button multi-position switch
US5180262A (en) * 1991-05-28 1993-01-19 Westerdale Norman R Adjustable chain vehicle tie-down apparatus
US5588524A (en) * 1995-10-06 1996-12-31 Wu; Ching-Lung Push wheel switch
US20050030139A1 (en) * 2001-10-18 2005-02-10 Pst Associates, Llc Field converter
US6663183B1 (en) * 2002-07-31 2003-12-16 Simon Liao Controlling device for a body support pivotally mounted on top of a stool
US20090229958A1 (en) * 2008-03-11 2009-09-17 Hosiden Corporation Push-button switch
US8362382B2 (en) * 2008-03-11 2013-01-29 Hosiden Corporation Push-button switch
TWI407470B (en) * 2008-03-11 2013-09-01 Hosiden Corp power switch button
US20100237216A1 (en) * 2009-03-17 2010-09-23 Mircea Napau Power seat height adjuster mechanism
US8556762B2 (en) 2009-03-17 2013-10-15 Crh North America, Inc. Power seat height adjuster mechanism

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