EP0389784B1 - Electrical shaving apparatus - Google Patents

Electrical shaving apparatus Download PDF

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Publication number
EP0389784B1
EP0389784B1 EP90103223A EP90103223A EP0389784B1 EP 0389784 B1 EP0389784 B1 EP 0389784B1 EP 90103223 A EP90103223 A EP 90103223A EP 90103223 A EP90103223 A EP 90103223A EP 0389784 B1 EP0389784 B1 EP 0389784B1
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EP
European Patent Office
Prior art keywords
capacity
shaving apparatus
digital display
display panel
time
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
EP90103223A
Other languages
German (de)
French (fr)
Other versions
EP0389784A2 (en
EP0389784A3 (en
Inventor
Gerhard Kienzler
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.)
Kuno Moser Fabrik fur Feinmechanik und Elektrotechnik GmbH
Original Assignee
Kuno Moser Fabrik fur Feinmechanik und Elektrotechnik GmbH
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Publication date
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Publication of EP0389784A2 publication Critical patent/EP0389784A2/en
Publication of EP0389784A3 publication Critical patent/EP0389784A3/en
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Publication of EP0389784B1 publication Critical patent/EP0389784B1/en
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Classifications

    • 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
    • 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
    • B26B19/28—Drive layout for hair clippers or dry shavers, e.g. providing for electromotive drive
    • B26B19/286—Drive layout for hair clippers or dry shavers, e.g. providing for electromotive drive providing for two or more different electrical power sources
    • 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
    • B26B19/3853—Housing or handle
    • 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
    • B26B19/3873—Electric features; Charging; Computing devices
    • 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
    • B26B19/3873—Electric features; Charging; Computing devices
    • B26B19/388—Sensors; Control
    • 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
    • B26B19/48—Accessory implements for carrying out a function other than cutting hair, e.g. attachable appliances for manicuring

Definitions

  • the invention relates to an electric shaver with a built-in battery for power supply and with a measuring device and an electrically connected capacity indicator for the capacity or charge status of the battery.
  • a shaver is state of the art.
  • Shavers are also already known, in which entire numerical conductors are attached and corresponding percentages are identified by illuminated markings. However, such devices are difficult to integrate into a modern device design.
  • the Capacity display clearly shows the user the capacity status of the power supply cells and indicates the need for recharging or a cell change.
  • the capacity display of such a shaver should also be easy to integrate into the design of a modern device housing.
  • the shaver has an electric clock in addition to the measuring device, which serves to display the time and to control the charging process and that the measuring device and the clock are electrically connected to a digital display panel , which is provided for the optional display of the time and the state of charge.
  • Such a digital display field shows the capacity or charge status of the power supply cells practically unmistakably in a numerical value.
  • a digital display panel can also be made relatively small, for example, so that it can be easily integrated into the design of a modern device housing. With the help of the electronic clock connected to the digital display panel, it is also easy to monitor the time while shaving. You always have the time on the shaver right in front of you.
  • Such an embodiment is also only associated with comparatively little effort, since a number of electrical components, including the digital display panel, are present in the electric shaver according to the invention anyway.
  • the clock of the razor according to the invention can also be used to control the charging process of the accumulators in addition to displaying the time.
  • the loading process can be thus control in time, with a certain time for charging being predefined.
  • This time specification can be matched to the intended charging current of the batteries, so that overcharging which is harmful to the batteries is avoided. This also gives you the option of working with a significantly higher charging current and thus a shorter charging time. This is of major advantage for practical operation. Without a charge limit, it is necessary to set the charging current to a comparatively low value so that the batteries are not damaged during continuous charging. This is avoided when the charging time is limited, as is provided in the shaving apparatus according to the invention.
  • the digital display field is expediently designed as a liquid crystal display.
  • a liquid crystal display can still be read well even with relatively small dimensions.
  • the measuring device uses the digital display panel to indicate the respective capacity or charge status of the power supply cells in percent, 100% of the capacity or charge state corresponds to the charged or not yet discharged power supply cells.
  • An embodiment is preferred in which the measuring device indicates the respective capacity or charge state of the power supply cells as a percentage in increments of ten (100%, 90%, 80%, etc.) via the digital display panel.
  • the ease of use and readability of the capacity display of the shaving apparatus according to the invention is further favored if the display field is designed as a flashing signal for charging the battery.
  • the capacity display is designed according to the invention as a digital display field 2.
  • the digital display field 2 clearly shows the capacity status of the power supply cells, which are also arranged inside the housing and are not visible here, in the form of a numerical display, the respective capacity or charge status in percent, preferably in increments of ten (100%, 90%, 80%, etc .) is specified.
  • the numerical display "100%" shown in FIG. 1 corresponds to the capacity or charge status of the charged or not yet discharged power supply cells.
  • the shaving apparatus shown in FIG. 1 carries a shaving foil 5 on the upper, removable housing part 2 of its housing 4. Below the shaving foil, the long-hair cutter 6 is provided on one of the two broad sides of the housing 4 of the shaving apparatus 1. In the lower edge region or end region of the housing 4 in FIG. 1 facing away from the shaving foil 5, the digital display field 2 is also clearly visible on the same broad side. Despite its comparatively small dimensions and correspondingly easy to integrate into the housing 4, the digital display field 2, which is designed as a liquid crystal display, can also be clearly read by the user.
  • FIGS. 2 and 3 show the electric shaver 1 from FIG. 1 with different displays of the capacity state of its power supply cells on the digital display panel 2. While in FIG. 2 the digital display panel 2 shows that the power supply cells are compared to their charged or 3, the digital display panel 2 is shown with a display value "20", which corresponds to a residual charge state of approximately 20%. This value is expediently to be regarded as the lower minimum in order to have a certain residual reserve in the power supply cells.
  • This state shown in FIG. 3 can optionally also be signaled by a "flashing" of the numerical value if the display field 2 is designed as a flashing signal for charging the battery or the state of charge of the battery (s).
  • the display on the digital display panel is only in “operation” when the device and its shaving head drive are switched on via switch 7.
  • FIG. 4 shows a perspective side view of the shaving apparatus 1 from FIGS. 1 to 3, which has an electronic watch (not visible here) in the interior of its housing 4, which is also connected to the digital display field of the electric shaving apparatus 1 for time display .
  • the electronic clock built into the shaver 1 allows ongoing time monitoring even during shaving, for example to meet an appointment or other obligation as punctually as possible.
  • the time display "1:40 pm" is shown on the digital display panel.
  • the time could be displayed on the digital display panel 2, for example in the "idle state" of the electric shaver 1, while the switch 7 automatically switches to "capacity display” when the device is switched on.
  • one control button 8 is provided for the display "clock” and one control button 9 for the display of the capacity.
  • an embodiment (not shown here) according to the invention also provides that a selection switch is provided for the display on the digital display panel, and that when this selection switch is actuated, the time display on the digital display panel of the capacity state and vice versa.
  • the watch can also be used to control the charging process of the batteries.
  • the charging process can thus be timed, with a specific time for charging being predefined.
  • This time specification can be matched to the intended charging current of the batteries, so that they are harmful to the batteries Overloading is avoided. This also gives you the option of working with a significantly higher charging current and thus a shorter charging time. This is of major advantage for practical operation. Without a charge limit, it is necessary to set the position current to a comparatively low value in order not to damage the batteries during long-term charging. This is avoided if the time limit is limited. If necessary, a measuring circuit for the charge or discharge status of the batteries can also be provided, which permits an even more precise control of the charging time.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Dry Shavers And Clippers (AREA)
  • Tests Of Electric Status Of Batteries (AREA)
  • Secondary Cells (AREA)

Abstract

The invention relates to an electrical shaving apparatus (1) which is operated in particular by accumulator or battery and has a measuring device as well as a capacity indicator, electrically connected thereto, for indicating the capacity or charge level of the power supply cells. In order to be able to indicate clearly to the user the capacity level of the power supply cells and point out the need for recharging or changing the cells, according to the invention the capacity indicator of the electrical shaving apparatus (1) is designed as a digital display area (2). The digital display area (2) indicates the capacity or charge level of the power supply cells of the electrical shaving apparatus (1) clearly as a numerical value. Expediently, the electrical shaving apparatus (1) also has an electronic clock which is also connected to the digital display area (2) for indicating the time. Consequently, the user has the time displayed constantly directly in front of him even during shaving. <IMAGE>

Description

Die Erfindung betrifft einen elektrischen Rasierapparat mit einem eingebauten Akkumulator zur Stromversorgung sowie mit einer Meßeinrichtung und einer damit elektrisch verbundenen Kapazitätsanzeige für den Kapazitäts- oder Ladezustand des Akkumulators. Ein solchen Rasierapparat ist Stand der Technik.The invention relates to an electric shaver with a built-in battery for power supply and with a measuring device and an electrically connected capacity indicator for the capacity or charge status of the battery. Such a shaver is state of the art.

Bei elektrischen Rasierapparaten, die insbesondere im Akku- oder Batteriebetrieb arbeiten, stellt das Erkennen des Ist-Zustandes der Kapazität der Zellen häufig ein gewisses Problem dar. Es ist für einen Benutzer, zum Beispiel auf Reisen, nicht unerheblich zu wissen, wann der Zeitpunkt zum Nachladen oder zum Zellenwechsel erreicht wird.In the case of electric shavers, which operate particularly in battery or battery operation, the detection of the actual state of the capacity of the cells is often a certain problem. It is not inconsiderable for a user, for example when traveling, to know when the time is Reloading or changing cells is achieved.

Man hat daher bereits Rasierapparate geschaffen, bei denen signalähnliche Leuchtelemente den Zustand markieren. Diese Einrichtungen signalisieren jedoch häufig nur einen Trend und überlassen es dem Benutzer, denselben mehr oder weniger richtig zu deuten.Razors have therefore already been created in which signal-like lighting elements mark the condition. This However, facilities often only signal a trend and leave it up to the user to interpret it more or less correctly.

Aus der DE-A-3 714 109 ist es bereits bekannt, einen elektrischen Rasierapparat mit einer elektrischen Uhr auszustatten, die zur Zeitansage geräteaußenseitig ein Digital-Anzeigefeld hat. Dabei weist der vorbekannte Rasierapparat einen Akkuantrieb auf, der eventuell auch getrennt vom Uhrenmodul mit Strom versorgt werden kann. Um den Ladezustand des Akkuantriebs überwachen zu können, ist bei dem Rasierapparat gemäß DE-A-3 714 109 vorgesehen, daß das Digital-Anzeigefeld der elektrischen Uhr gleichzeitig auch als Blinkanzeige-Signal verwendet wird.From DE-A-3 714 109 it is already known to equip an electric shaver with an electric clock which has a digital display field on the outside of the device for the time announcement. The previously known razor has a battery drive, which can possibly also be supplied with power separately from the clock module. In order to be able to monitor the state of charge of the battery drive, it is provided in the shaving apparatus according to DE-A-3 714 109 that the digital display field of the electric clock is also used as a flashing signal.

Auch kennt man bereits Rasierapparate, bei denen ganze Ziffernleitern angebracht sind und entsprechende Prozentangaben durch Leuchtmarkierung gekennzeichnet werden. Solche Einrichtungen lassen sich jedoch in ein modernes Gerätedesign nur schwer integrieren.Shavers are also already known, in which entire numerical conductors are attached and corresponding percentages are identified by illuminated markings. However, such devices are difficult to integrate into a modern device design.

Aus der US-A-4 716 354 kennt man bereits einen Schaltungsaufbau, der zur Überwachung und Regulierung des Ladezustands der beispielsweise in einem Taschenrechner verwendeten Akkus dient. Bei dieser vorbekannten Schaltung, die eine zentrale Recheneinheit aufweist, kann die jeweils noch verbleibende Kapazität der Akkus auf einem Anzeigefeld abgelesen werden. Zur Steuerung der schaltungsinternen Lade-, Ladezustands- und Testvorgänge ist in die zentrale Recheneinheit dieses vorbekannten Schaltungsaufbaus eine Uhr integriert, die jedoch nur zur Realzeit-Messung vorgesehen ist.From US-A-4 716 354 a circuit structure is already known which is used to monitor and regulate the state of charge of the batteries used, for example, in a pocket calculator. With this known circuit, which has a central processing unit, the remaining capacity of the batteries can be read on a display panel. A clock is integrated in the central processing unit of this previously known circuit structure to control the internal circuit charging, charging state and test processes, but is only intended for real-time measurement.

Es besteht daher die Aufgabe, einen elektrischen Rasierapparat der eingangs erwähnten Art zu schaffen, dessen Kapazitätsanzeige dem Benutzer deutlich den Kapazitätszustand der Stromversorgungszellen anzeigt und auf die Notwendigkeit des Nachladens oder eines Zellenwechsels hinweist. Dabei soll die Kapazitätsanzeige eines solchen Rasierapparates auch leicht in das Design eines modernen Gerätegehäuses integrierbar sein.It is therefore an object to provide an electric shaver of the type mentioned, the Capacity display clearly shows the user the capacity status of the power supply cells and indicates the need for recharging or a cell change. The capacity display of such a shaver should also be easy to integrate into the design of a modern device housing.

Die erfindungsgemäße Lösung dieser Aufgabe besteht bei dem Rasierapparat der eingangs erwähnten Art darin, daß der Rasierapparat zusätzlich zur Meßeinrichtung eine elektrische Uhr aufweist, die zur Zeitanzeige und zur Steuerung des Ladevorganges dient und daß die Meßeinrichtung sowie die Uhr mit einem Digital-Anzeigefeld elektrich verbunden sind, welches zur wahlweisen Anzeige der Uhrzeit und des Ladezustandes vorgesehen ist.The inventive solution to this problem in the shaver of the type mentioned is that the shaver has an electric clock in addition to the measuring device, which serves to display the time and to control the charging process and that the measuring device and the clock are electrically connected to a digital display panel , which is provided for the optional display of the time and the state of charge.

Ein solches Digital-Anzeigefeld zeigt den Kapazitäts- oder Ladezustand der Stromversorgungszellen praktisch unmißverständlich in einem Zahlenwert an. Dabei kann ein solches Digital-Anzeigefeld beispielsweise auch verhältnismäßig klein ausgebildet werden, so daß es sich in das Design auch eines modernen Gerätegehäuses leicht integrieren läßt. Mit Hilfe der mit dem Digital-Anzeigefeld verbundenen elektronischen Uhr ist gleichzeitig auch eine laufende Zeitüberwachung während dem Rasieren leicht möglich. Dabei hat man die Zeitangabe beim Rasierapparat laufend unmittelbar vor sich. Eine solche Ausführungsform ist zudem auch nur mit vergleichsweise geringem Aufwand verbunden, da etliche elektro-technische Einbauteile einschließlich des Digital-Anzeigefeldes im erfindungsgemäßen elektrischen Rasierapparat ohnehin vorhanden sind.Such a digital display field shows the capacity or charge status of the power supply cells practically unmistakably in a numerical value. Such a digital display panel can also be made relatively small, for example, so that it can be easily integrated into the design of a modern device housing. With the help of the electronic clock connected to the digital display panel, it is also easy to monitor the time while shaving. You always have the time on the shaver right in front of you. Such an embodiment is also only associated with comparatively little effort, since a number of electrical components, including the digital display panel, are present in the electric shaver according to the invention anyway.

Die Uhr des erfindungsgemäßen Rasierapparates kann dabei außer zur Zeitanzeige auch zur Steuerung des Ladevorganges der Akkumulatoren mitverwendet werden. Der Ladevorgang läßt sich somit zeitlich steuern, wobei eine bestimmte Zeit für das Laden vorgegeben sein kann. Diese Zeitvorgabe kann auf den vorgesehenen Ladestrom der Akkus abgestimmt sein, so daß ein für die Akkus schädliches Überladen vermieden wird. Auch besteht dadurch die Möglichkeit, mit wesentlich höherem Ladestrom und somit kürzerer Ladezeit zu arbeiten. Dies ist für den praktischen Betrieb von wesentlichem Vorteil. Ohne Ladebegrenzung ist es erforderlich, den Ladestrom auf einen vergleichsweise niedrigen Wert einzustellen, um die Akkus bei einer Dauerladung nicht zu beschädigen. Bei einer Ladezeitbegrenzung, wie sie bei dem erfindungsgemäßen Rasierapparat vorgesehen ist, wird dies vermieden.The clock of the razor according to the invention can also be used to control the charging process of the accumulators in addition to displaying the time. The loading process can be thus control in time, with a certain time for charging being predefined. This time specification can be matched to the intended charging current of the batteries, so that overcharging which is harmful to the batteries is avoided. This also gives you the option of working with a significantly higher charging current and thus a shorter charging time. This is of major advantage for practical operation. Without a charge limit, it is necessary to set the charging current to a comparatively low value so that the batteries are not damaged during continuous charging. This is avoided when the charging time is limited, as is provided in the shaving apparatus according to the invention.

Zweckmäßigerweise ist dabei das Digital-Anzeigefeld als Flüssigkristallanzeige ausgebildet. Insbesondere eine solche Flüssigkristallanzeige läßt sich auch bei verhältnismäßig kleinen Abmessungen noch gut ablesen.The digital display field is expediently designed as a liquid crystal display. In particular, such a liquid crystal display can still be read well even with relatively small dimensions.

Da nicht jedem Benutzer eines elektrischen Rasierapparates die physikalische Meßgröße des Kapazitätszustandes einer Stromversorgungszelle geläufig sein wird, ist es vorteilhaft, wenn die Meßeinrichtung über das Digital-Anzeigefeld den jeweiligen Kapazitäts- oder Ladezustand der Stromversorgungszellen in Prozenten angibt, wobei 100% dem Kapazitäts- oder Ladezustand der aufgeladenen oder noch nicht entladenen Stromversorgungszellen entspricht. Bevorzugt wird dabei eine Ausführungsform, bei der die Meßeinrichtung über das Digital-Anzeigefeld den jeweiligen Kapazitäts- oder Ladezustand der Stromversorgungszellen prozentual in Zehner-Sprüngen (100%, 90%, 80% usw.) angibt.Since not every user of an electric shaver will be familiar with the physical quantity of the capacity state of a power supply cell, it is advantageous if the measuring device uses the digital display panel to indicate the respective capacity or charge status of the power supply cells in percent, 100% of the capacity or charge state corresponds to the charged or not yet discharged power supply cells. An embodiment is preferred in which the measuring device indicates the respective capacity or charge state of the power supply cells as a percentage in increments of ten (100%, 90%, 80%, etc.) via the digital display panel.

Die leichte Bedienbarkeit und Ablesbarkeit der Kapazitätsanzeige des erfindungsgemäßen Rasierapparates wird noch begünstigt, wenn das Anzeigefeld als Blinkanzeige-Signal für das Aufladen des Akkus ausgebildet ist.The ease of use and readability of the capacity display of the shaving apparatus according to the invention is further favored if the display field is designed as a flashing signal for charging the battery.

Weiterbildungen der Erfindungen sind in weiteren Unteransprüchen aufgeführt. Nachstehend wird diese anhand vorteilhafter Ausführungsbeispiele in Verbindung mit den Figuren noch näher erläutert.Further developments of the inventions are listed in further subclaims. This is explained in more detail below on the basis of advantageous exemplary embodiments in conjunction with the figures.

Es zeigt:

Fig. 1
einen Rasierapparat mit einem Digital-Anzeigefeld als Kapazitätsanzeige in einer perspektivischen Seitenansicht,
Fig. 2
den Rasierapparat aus Fig.1, wobei dessen Digital-Anzeigefeld auf einen etwa 60prozentigen Ladezustand hinweist,
Fig. 3
den Rasierapparat aus Fig.1 u.2, wobei dessen Digital-Anzeigefeld hier auf einen etwa 20prozentigen Ladezustand und damit auf die Notwendigkeit des Nachladens oder eines Austausches der Stromversorgungszellen hinweist und
Fig. 4
einen Rasierapparat, ähnlich dem aus Fig.1 bis 3, mit einer elektronischen und mit dem Digital-Anzeigefeld elektrisch verbundenen Uhr.
It shows:
Fig. 1
a shaver with a digital display as a capacity indicator in a perspective side view,
Fig. 2
1, the digital display panel indicating an approximately 60 percent charge level,
Fig. 3
the shaver from Fig.1 and 2, the digital display here indicates an approximately 20 percent charge and thus the need to recharge or replace the power supply cells and
Fig. 4
a shaver, similar to that of Fig. 1 to 3, with an electronic and electrically connected to the digital display panel clock.

Fig.1 zeigt in einer perspektivischen Seitenansicht einen im ganzen mit 1 gekennzeichneten elektrischen Rasierapparat, der im Akku- oder Batteriebetrieb arbeitet und eine in seinem Gehäuseinneren angeordnete Meßeinrichtung sowie eine damit elektrisch verbundene Kapazitätsanzeige für den Kapazitäts- oder Ladezustand der Stromversorgungszellen aufweist. Um dem Benutzer des Rasierapparates 1 ein möglichst genaues Ablesen des jeweiligen Kapazitäts- oder Ladezustandes der Stromversorgungszellen zu ermöglichen, ist die Kapazitätsanzeige erfindungsgemäß als Digital-Anzeigefeld 2 ausgebildet.1 shows a perspective side view of an electric shaver, generally designated 1, which operates in battery or battery mode and has a measuring device arranged in its interior and an electrically connected capacity indicator for the capacity or charge state of the power supply cells. In order to enable the user of the shaving apparatus 1 to read the respective capacity or charge state of the power supply cells as accurately as possible, the capacity display is designed according to the invention as a digital display field 2.

Das Digital-Anzeigefeld 2 gibt den Kapazitätszustand der ebenfalls im Gehäuseinneren angeordneten und hier nicht sichtbaren Stromversorgungszellen in Form einer Ziffernanzeige deutlich wieder, wobei der jeweilige Kapazitäts- oder Ladezustand in Prozenten, vorzugsweise in Zehner-Sprüngen (100%, 90%, 80% usw.) angegeben ist. Dabei entspricht die in Fig.1 dargestellte Ziffernanzeige "100%" dem Kapazitäts- oder Ladezustand der aufgeladenen oder noch nicht entladenen Stromversorgungszellen.The digital display field 2 clearly shows the capacity status of the power supply cells, which are also arranged inside the housing and are not visible here, in the form of a numerical display, the respective capacity or charge status in percent, preferably in increments of ten (100%, 90%, 80%, etc .) is specified. The numerical display "100%" shown in FIG. 1 corresponds to the capacity or charge status of the charged or not yet discharged power supply cells.

Der in Fig.1 dargestellte Rasierapparat trägt an dem oberen, abnehmbaren Gehäuseteil 2 seines Gehäuses 4 eine Scherfolie 5. Unterhalb der Scherfolie ist an einer der beiden Breitseiten des Gehäuses 4 des Rasierapparates 1 der Langhaarschneider 6 vorgesehen.
In dem in Fig.1 unteren, der Scherfolie 5 abgewandten Rand- oder Endbereich des Gehäuses 4 ist auf derselben Breitseite gut sichtbar auch das Digital-Anzeigefeld 2 vorgesehen. Trotz seiner vergleichsweise geringen und entsprechend gut in das Gehäuse 4 integrierbaren Abmessungen ist das als Flüssigkristallanzeige ausgebildete Digital-Anzeigefeld 2 auch vom Benutzer deutlich ablesbar.The shaving apparatus shown in FIG. 1 carries a shaving foil 5 on the upper, removable housing part 2 of its housing 4. Below the shaving foil, the long-hair cutter 6 is provided on one of the two broad sides of the housing 4 of the shaving apparatus 1.
In the lower edge region or end region of the housing 4 in FIG. 1 facing away from the shaving foil 5, the digital display field 2 is also clearly visible on the same broad side. Despite its comparatively small dimensions and correspondingly easy to integrate into the housing 4, the digital display field 2, which is designed as a liquid crystal display, can also be clearly read by the user.

Die Figuren 2 u.3 zeigen den elektrischen Rasierapparat 1 aus Fig.1 mit unterschiedlichen Anzeigen des Kapazitätszustandes seiner Stromversorgungszellen auf dem Digital-Anzeigefeld 2. Während in Fig.2 das Digital-Anzeigefeld 2 anzeigt, daß die Stromversorgungszellen im Vergleich zu ihrem aufgeladenen oder noch nicht entladenen Zustand noch etwa zu 60% aufgeladen sind, ist in Fig.3 das Digital-Anzeigefeld 2 mit einem Anzeigewert "20" dargestellt, was einem Restladezustand von etwa 20% entspricht. Dieser Wert ist zweckmäßigerweise als unteres Minimum zu betrachten, um über eine gewisse Restreserve in den Stromversorgungszellen zu verfügen.
Dieser in Fig.3 dargestellte Zustand kann gegebenenfalls auch durch ein "Blinken" des Zahlwertes zusätzlich signalisiert werden, wenn das Anzeigefeld 2 als Blinkanzeige-Signal für das Aufladen des Akkus bzw. den Ladezustand der Batterie(n) ausgebildet ist.FIGS. 2 and 3 show the electric shaver 1 from FIG. 1 with different displays of the capacity state of its power supply cells on the digital display panel 2. While in FIG. 2 the digital display panel 2 shows that the power supply cells are compared to their charged or 3, the digital display panel 2 is shown with a display value "20", which corresponds to a residual charge state of approximately 20%. This value is expediently to be regarded as the lower minimum in order to have a certain residual reserve in the power supply cells.
This state shown in FIG. 3 can optionally also be signaled by a "flashing" of the numerical value if the display field 2 is designed as a flashing signal for charging the battery or the state of charge of the battery (s).

Vorzugsweise ist die Anzeige auf dem Digital-Anzeigefeld nur in "Betrieb", wenn das Gerät und sein Scherkopfantrieb über den Schalter 7 eingeschaltet wird.Preferably, the display on the digital display panel is only in "operation" when the device and its shaving head drive are switched on via switch 7.

Fig. 4 zeigt in einer ebenfalls perspektivischen Seitenansicht den Rasierapparat 1 aus Fig.1 bis 3, der im Inneren seines Gehäuses 4 eine - hier nicht sichtbare - elektronische Uhr aufweist, die zur Zeitanzeige ebenfalls mit dem Digital-Anzeigefeld des elektrischen Rasierapparates 1 verbunden ist. Dabei erlaubt die in den Rasierapparat 1 eingebaute elektronische Uhr eine laufende Zeitüberwachung auch während des Rasierens, um beispielsweise einem Termin oder einer anderen Verpflichtung möglichst pünktlich nachzukommen. In Fig.4 ist auf dem Digital-Anzeigefeld die Zeitanzeige "13:40" Uhr angezeigt.
Dabei könnte auf dem Digital-Anzeigefeld 2 beispielsweise im "Ruhezustand" des elektrischen Rasierapparates 1 die Uhrzeit angezeigt werden, während bei eingeschaltetem Gerät automatisch auf "Kapazitätsanzeige" durch den Schalter 7 umgeschaltet wird.FIG. 4 shows a perspective side view of the shaving apparatus 1 from FIGS. 1 to 3, which has an electronic watch (not visible here) in the interior of its housing 4, which is also connected to the digital display field of the electric shaving apparatus 1 for time display . The electronic clock built into the shaver 1 allows ongoing time monitoring even during shaving, for example to meet an appointment or other obligation as punctually as possible. In Fig.4 the time display "1:40 pm" is shown on the digital display panel.
The time could be displayed on the digital display panel 2, for example in the "idle state" of the electric shaver 1, while the switch 7 automatically switches to "capacity display" when the device is switched on.

Möglich ist aber auch, daß je eine Bedienungstaste 8 für die Anzeige "Uhr" und eine Bedienungstaste 9 für die Anzeige der Kapazität vorgesehen ist.However, it is also possible that one control button 8 is provided for the display "clock" and one control button 9 for the display of the capacity.

Darüber hinaus sieht eine - hier nicht dargestellte - Ausführungsform gemäß der Erfindung auch vor, daß für die Anzeige auf dem Digital-Anzeigefeld ein Wahl-Schalter vorgesehen ist, und daß bei Betätigung dieses Wahl-Schalters auf dem Digital-Anzeigefeld die Zeitanzeige in eine Anzeige des Kapazitätszustands und umgekehrt umschaltet.In addition, an embodiment (not shown here) according to the invention also provides that a selection switch is provided for the display on the digital display panel, and that when this selection switch is actuated, the time display on the digital display panel of the capacity state and vice versa.

Die Uhr kann außer zur Zeitanzeige auch zur Steuerung des Ladevorganges der Akkumulatoren mitverwendet werden. Der Ladevorgang läßt sich somit zeitlich steuern, wobei eine bestimmte Zeit für das Laden vorgegeben sein kann. Diese Zeitvorgabe kann auf den vorgesehenen Ladestrom der Akkus abgestimmt sein, so daß ein für die Akkus schädliches Überladen vermieden wird. Auch besteht dadurch die Möglichkeit, mit wesentlich höherem Ladestrom und somit kürzerer Ladezeit zu arbeiten. Dies ist für den praktischen Betrieb von wesentlichem Vorteil. Ohne Ladebegrenzung ist es erforderlich, den Lagestrom auf einen vergleichsweise niedrigen Wert einzustellen, um die Akkus bei einer Dauerladung nicht zu beschädigen. Bei einer Lagezeitbegrenzung wird dies vermieden.
Gegebenenfalls kann noch eine Meßschaltung für den Lade- bzw. Entladezustand der Akkumulatoren vorgesehen sein, welche eine noch exaktere Steuerung der Ladezeit zuläßt.In addition to displaying the time, the watch can also be used to control the charging process of the batteries. The charging process can thus be timed, with a specific time for charging being predefined. This time specification can be matched to the intended charging current of the batteries, so that they are harmful to the batteries Overloading is avoided. This also gives you the option of working with a significantly higher charging current and thus a shorter charging time. This is of major advantage for practical operation. Without a charge limit, it is necessary to set the position current to a comparatively low value in order not to damage the batteries during long-term charging. This is avoided if the time limit is limited.
If necessary, a measuring circuit for the charge or discharge status of the batteries can also be provided, which permits an even more precise control of the charging time.

Alle vorbeschriebenen oder in den Ansprüchen aufgeführten Einzelmerkmale können einzeln oder in beliebiger Kombination miteinander erfindungswesentlich sein.All of the individual features described above or listed in the claims can be essential to the invention individually or in any combination with one another.

Claims (8)

  1. An electrical shaving apparatus having an integrated accumulator for power supply, a measuring device and electrically connected thereto a capacity display for indicating the capacity or charge of the accumulator, characterized in that the shaver (1) has in addition to the measuring device an electric clock serving to show the time and to control the charging process and that the measuring device and the clock are electrically connected to a digital display panel (2) provided for optional display of the time and the charge.
  2. An electrical shaving apparatus as claimed in claim 1, characterized in that the digital display panel (2) takes the form of a liquid-crystal display.
  3. An electrical shaving apparatus as claimed in claim 1 or claim 2, characterized in that through the digital display panel (2) the measuring device gives a percentage indication of the respective capacity or charge of the power supply cells, 100% corresponding to the capacity or charge of the charged or not yet discharged power supply cells.
  4. An electrical shaving apparatus as claimed in any one of claims 1 to 3, characterized in that the display panel (2) takes the form of a flashing indication signal for the charging of the accumulator.
  5. An electrical shaving apparatus as claimed in any one of claims 1 to 4, characterized in that the display appears after actuation of a button actuator or similar switch provided specially for the digital display panel (2).
  6. An electrical shaving apparatus as claimed in any one of claims 1 to 4, characterized in that an on/off appliance switch (7) is provided for the shaving drive of the shaving apparatus (1) and that in the "off" position of said switch the time is displayed and in the "on" position of said switch the capacity or charge is displayed on the digital display panel (2).
  7. An electrical shaving apparatus as claimed in any one of claims 1 to 5, characterized in that a button actuator or similar control switch is provided for the time display and that the time display appears on the digital display panel (2) only when said button actuator or the like is actuated.
  8. An electrical shaving apparatus as claimed in any one of claims 1 to 5, characterized in that a selector switch is provided and when it is actuated the time display on the digital display panel (2) can be changed over into a display of the capacity and vice versa.
EP90103223A 1989-03-31 1990-02-20 Electrical shaving apparatus Expired - Lifetime EP0389784B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3910373 1989-03-31
DE3910373A DE3910373A1 (en) 1989-03-31 1989-03-31 ELECTRIC SHAVER

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EP0389784A2 EP0389784A2 (en) 1990-10-03
EP0389784A3 EP0389784A3 (en) 1991-06-12
EP0389784B1 true EP0389784B1 (en) 1995-04-05

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EP90103223A Expired - Lifetime EP0389784B1 (en) 1989-03-31 1990-02-20 Electrical shaving apparatus

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EP (1) EP0389784B1 (en)
AT (1) ATE120682T1 (en)
DE (2) DE3910373A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT403958B (en) * 1992-02-17 1998-07-27 Payer Lux Elektroprod ELECTRIC SHAVER
DE19601780C1 (en) * 1996-01-19 1997-06-26 Braun Ag Electric shaver with indicator of maximum deflection of cutting head
DE19612089A1 (en) * 1996-03-27 1997-10-02 Braun Ag Electric shaver or device interacting therewith and arrangement for evaluating information
JP2008502407A (en) * 2004-06-15 2008-01-31 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Pruning device and method for operating such a device
EP2243442B1 (en) * 2009-04-23 2014-01-08 Braun GmbH Small electrical device with a display element

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3940679A (en) * 1974-06-18 1976-02-24 Textron, Inc. Nickel-cadmium battery monitor
US4716354A (en) * 1985-11-12 1987-12-29 Norand Corporation Automatic voltage regulator means providing a dual low power responsive and output-voltage-controlling regulator signal particularly for a plural source battery powered system
NL8401186A (en) * 1984-04-13 1985-11-01 Philips Nv SHIELD.
DE3714109A1 (en) * 1987-04-28 1988-11-10 Moser Gmbh Kuno Electric razor

Also Published As

Publication number Publication date
EP0389784A2 (en) 1990-10-03
ATE120682T1 (en) 1995-04-15
EP0389784A3 (en) 1991-06-12
DE59008821D1 (en) 1995-05-11
DE3910373A1 (en) 1990-10-04

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