US3803372A - Switching counter - Google Patents

Switching counter Download PDF

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Publication number
US3803372A
US3803372A US00188679A US18867971A US3803372A US 3803372 A US3803372 A US 3803372A US 00188679 A US00188679 A US 00188679A US 18867971 A US18867971 A US 18867971A US 3803372 A US3803372 A US 3803372A
Authority
US
United States
Prior art keywords
wheel
battery
pawl
switch
slide
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
US00188679A
Other languages
English (en)
Inventor
R Dijkstra
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.)
US Philips Corp
Original Assignee
US Philips 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 US Philips Corp filed Critical US Philips Corp
Application granted granted Critical
Publication of US3803372A publication Critical patent/US3803372A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B21/00—Razors of the open or knife type; Safety razors or other shaving implements of the planing type; Hair-trimming devices involving a razor-blade; Equipment therefor
    • B26B21/40—Details or accessories
    • B26B21/4081—Shaving methods; Usage or wear indication; Testing methods
    • B26B21/4087—Usage or wear indication
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B19/00—Clippers or shavers operating with a plurality of cutting edges, e.g. hair clippers, dry shavers
    • B26B19/38—Details of, or accessories for, hair clippers, or dry shavers, e.g. housings, casings, grips, guards
    • B26B19/3806—Accessories
    • B26B19/382—Built-in accessories
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/04—Design features of general application for driving the stage of lowest order
    • G06M1/045—Design features of general application for driving the stage of lowest order for dial, pointer, or similar type indicating means
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S30/00—Cutlery
    • Y10S30/01—Rechargeable battery operated

Definitions

  • ABSTRACT [52] US. Cl 200/52 R, 200/16 D, 30/DlG. l V [51] Int. Cl. H0lh 15/10 A switching-counter mechanism for switchin on batg [58] Field of Search 30/4392,- 34 A, DIG. l; tery-operated appliances, and automatically register- 200/1 1 TW, 156,, 52R, 16 C, 16 D ing the number of times the switch has been actuated, the counter indicia corresponding to the approximate '[56] References Cited degree of exhaustion of the battery.
  • the invention relates to domestic appliances, especially dry-shavers, use batteries at least for certain periods of operation and devices for indicating the amount of use and degree of exhaustion of the batteries.
  • the device comprises a counting mechanism which registers the number of switching operations.
  • the number of switching operations performed on operative batteries of an appliance in order to cause them to deliver the electrical energy requiredfor the appliance may be regarded as an i'ndication of the degree of exhaustion of these batteries.
  • the device according to the invention is further characterized in that the counting mechanism comprises a make-and-break switch for operating the appliance.
  • This switch designed as a slide switch, operates a resilient pawl which cooperates with a ratchet wheel; the wheel is arranged for rotation about its axis and actuates the counter of the counting mechanism.
  • the resilient pawl causes the ratchet wheel to move through a distance required to advance the counting position of the counter by one unit and a locking member locks the ratchet wheelduring the other switching movement of the switch.
  • FIG. 1 is a front elevation of an embodiment of the device according to the invention in which the resilien pawl engages the ratchet wheel
  • FIG. 2 is an elevation similar to that of FIG. 1, in which the resilient pawl slides'over the teeth of the ratchet wheel which is in the form of a sprocket wheel
  • FIG. 3 is a cross-sectional view of the device according to the invention 1
  • FIG. 4 is a front perspective view of the invention.
  • the reference numeral 1 designates an elevation of an embodiment of the device according to the invention.
  • This-counting mechanism includes a switch 2 in the form of a slide switch which operates a resilient pawl 3: the pawl cooperates with a ratchet wheel 5 which is arranged for rotation about its axis 4 and in turn actuates the counter of the counting mechanism; the resilient pawl 3 during-one switching movement in the direction indicated by the arrow A of the switch 2 advances the ratchet wheel through a distance required to increase the figure indicated by the counter which is actuated by the ratchet wheel Sby one unit.
  • the ratchet wheel 5 is locked'by a locking member 6.
  • the ratchet wheel 5, which is in the form of a sprocket wheel having teeth 7, also acts as a counter.
  • On actuation switch 2 is a first movable contact 17, a
  • FIG.' I shows the actuator 2 moved to the right with contact 18 engaging fixed contact 20, while contact, 17 engages fixed contact 21, whereby the circuit (shown in FIG. 2) is closed.
  • contacts 18 and 20 are separated, when opens the circuit, even though contacts 17 and 21 remain in contact.
  • the actuator 2 has a knob or button 2a that may be pushed with the users finger.
  • the distance between two successive counter positions aand b (FIG. 1) which are situated on a circle corresponds as an angle at the centre to the spacing between two tooth roots 8, the pitch, of the ratchet wheel 5' in the form of a sprocket wheel, which tooth roots 8 lie on a circle concentric with the circle on which the counter positions are indicated.
  • the locking member 5 comprises a leaf spring 11 held between two studs 9 and 10. A part of the leafspring 11 lying between the studs 9 and 10 is provided with a bulge 12 the outer periphery of which fits in the space between two successive teeth 7 of the ratchet wheel 5 in the form of a sprocket wheel.
  • the resilient pawl 3 is constituted by a resilient arm 13 which forms part of the switch 2.
  • the free, hook-shaped end 14 of the arm 13 engages with the toothed rim of the ratchet wheel 5 in the form of a sprocket wheel (FIG. 1), whereas during the other. switching movement of the switch (in the direction indicated by the arrow B) this hook-shaped end 14 slides over this toothed rim.
  • the ratchet wheel 5, which acts as a counter is provided with a central boss 15 having a slot 16 in its free end.
  • the ratchet wheel acting as a counter may be set to zero, one unit of the counter being one tooth of the wheel.
  • a slide member slidably mounted to said base for cyclic movement between first and second positions, a pawl carried by said slide member and extending to and contacting a second position moves said pawl and said tooth that it contacts and thereby rotates said wheel, with the indicia likewise moved for indicating the number of times the switch has been operated, and resilient locking means on said base including a portion that releasably engages and restrains the wheel from rotating until same is driven by said slideand pawl between first and second positions, said slide member and base further comprising a make-and-break electrical switch within said electrical circuit, the slide in one of said positions closing said circuit, and in the other position opening said circuit.
  • said locking means comprises a spring having one part secured to the base and a second part that releasably engages at least one tooth.
  • switch means on said shaver comprising a first part reversably slidable between of and on positions, the first part in on position closing the electrical circuit, thus electrically connecting the battery to operate said shaver and partially exhausting the battery, the first part in off position opening said circuit, and a second part having observable indicia formed as a sequence of symbols corresponding to the number of said switching operations for which the battery is sufficient, the second part being engaged and rotatable by the first part to register and indicate one of said symbols for each successive switching operation, whereby the second part automatically indicates the degree of exhaustion of the battery.
  • said second part is a counting mechanism comprising a ratchet wheel rotatable about its axis, a resilient pawl carried by said first part and contacting said wheel, lateral movement of the first part and pawl driving said wheel to rotate an amount sufficient to indicate the next consecutive symbol of said sequence of symbols, and a locking member for restraining the wheels between switching operations.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Electric Clocks (AREA)
  • Battery Mounting, Suspending (AREA)
  • Dry Shavers And Clippers (AREA)
US00188679A 1968-08-29 1971-09-01 Switching counter Expired - Lifetime US3803372A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6812260A NL6812260A (xx) 1968-08-29 1968-08-29

Publications (1)

Publication Number Publication Date
US3803372A true US3803372A (en) 1974-04-09

Family

ID=19804479

Family Applications (1)

Application Number Title Priority Date Filing Date
US00188679A Expired - Lifetime US3803372A (en) 1968-08-29 1971-09-01 Switching counter

Country Status (6)

Country Link
US (1) US3803372A (xx)
JP (1) JPS4531973B1 (xx)
DE (1) DE1940612A1 (xx)
FR (1) FR2016560A1 (xx)
GB (1) GB1224127A (xx)
NL (1) NL6812260A (xx)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4112271A (en) * 1976-12-20 1978-09-05 Sperry Rand Corporation Counter device associated with switch actuator of electrical shaver to determine battery recharging and use
US4384180A (en) * 1980-07-17 1983-05-17 U.S. Philips Corporation Electric shaver having plural switch assembly and illuminated counter mechanism
US5111580A (en) * 1989-12-14 1992-05-12 U.S. Philips Corp. Electric shaving apparatus
US6781923B1 (en) * 2000-09-13 2004-08-24 Timex Group B.V. Method and apparatus for tracking usage of a multi-functional electronic device
US20090071010A1 (en) * 2007-09-17 2009-03-19 Robert Anthony Hart Cartridge Life Indicator

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3704161A1 (de) * 1987-02-11 1988-08-25 Braun Ag Betriebszaehlwerk
US9377087B2 (en) 2011-09-22 2016-06-28 Borgwarner Inc. Chain drive tensioner spring force control mechanism

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4112271A (en) * 1976-12-20 1978-09-05 Sperry Rand Corporation Counter device associated with switch actuator of electrical shaver to determine battery recharging and use
US4384180A (en) * 1980-07-17 1983-05-17 U.S. Philips Corporation Electric shaver having plural switch assembly and illuminated counter mechanism
US5111580A (en) * 1989-12-14 1992-05-12 U.S. Philips Corp. Electric shaving apparatus
US6781923B1 (en) * 2000-09-13 2004-08-24 Timex Group B.V. Method and apparatus for tracking usage of a multi-functional electronic device
US20090071010A1 (en) * 2007-09-17 2009-03-19 Robert Anthony Hart Cartridge Life Indicator
US8122606B2 (en) 2007-09-17 2012-02-28 The Gillette Company Cartridge life indicator

Also Published As

Publication number Publication date
JPS4531973B1 (xx) 1970-10-15
DE1940612A1 (de) 1970-03-05
FR2016560A1 (xx) 1970-05-08
GB1224127A (en) 1971-03-03
NL6812260A (xx) 1970-03-03

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