US 5,159,256 A · Adaptor/holder for rechargeable electrical tool · patentgrep

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Abstract

The mechanism for operating a rechargeable electrical tool having a rechargeable battery for line-powered operation or for battery-powered operation includes an adapter for electrical connection of a tool portion to a current source; a holder shaped to hold the adapter alone and also the adapter together with the tool portion when the adapter is connected with the tool portion; a device for releasably attaching the tool portion to the adapter; a device for releasably attaching the adapter to the holder; means for detaching the adapter from the holder at least partially located in the adapter and cooperating with the means for releasably attaching the tool portion to the adapter, so that when the adapter is in the holder and when the means for releasably attaching the tool portion to the adapter is actuated to attach the tool portion to the adapter, the means for detaching the adapter detaches the adapter from the holder; and a device for detaching the tool portion from the adapter cooperating with the means for releasably attaching the adapter and the holder, so that, when the adapter is in the holder and when the means for releasably attaching the adapter with the holder is actuated to attach the adapter with the holder, the tool portion is detachable from the adapter.

Claims28

Dependent claims

A device for operating a rechargeable electrical tool comprising:

a rechargeable tool portion containing a rechargeable battery;
means for line-powered operation of said tool portion;
means for battery-powered operation of said tool portion including said rechargeable battery;
an adapter including means for electrical connection of said tool portion to a current source, said tool portion being mechanically and electrically connectable and disconnectable from said adapter, said adapter supplying current to said tool portion when connected electrically with said tool portion and with said current source;
a holder shaped to hold said adapter alone and also said adapter together with said tool portion when said adapter is connected with said tool portion;
means for releasably attaching the tool portion to the adapter;
means for releasably attaching the adapter to the holder;
means for detaching the adapter from the holder cooperating with said means for releasably attaching the tool portion to the adapter, so that, when said adapter is in said holder and when said means for releasably attaching the tool portion to the adapter is actuated to attach the tool portion to the adapter, the means for detaching the adapter detaches the adapter from the holder;
and
means for detaching the tool portion from the adapter cooperating with said means for releasably attaching the adapter and the holder, so that, when the adapter is in the holder and when said means for releasably attaching the adapter with the holder is actuated to attach the adapter with the holder, the tool portion is detachable from the adapter;
wherein said means for detaching the adapter from the holder is at least partially located in the adapter.

8 more elements

A device for operating a rechargeable electrical tool comprising:

a rechargeable tool portion containing a rechargeable battery;
means for line-powered operation of said tool portion;
means for battery-powered operation of said tool portion including said rechargeable battery;
an adapter including means for electrical connection of said tool portion to a current source, said tool portion being mechanically and electrically connectable and disconnectable from said adapter, said adapter supplying current to said tool portion when connected electrically with said tool portion and with said current source;
a holder shaped to hold said adapter alone and also said adapter together with said tool portion when said adapter is connected with said tool portion;
means for releasably attaching the tool portion to the adapter;
and
means for releasably attaching the adapter to the holder;
wherein said means for said releasably attaching said adapter and said tool portion comprises a magnetic circuit and means for closing said magnetic circuit, and said means for electrical connection of said tool portion and said current source of said adapter include a plurality of spring contacts providing an electrical connection of said adapter with said tool portion;
and
wherein said means for releasably attaching the adapter to the holder is at least partially located in the adapter and said means for releasably attaching the tool portion to the adapter is also at least partially located in the adapter.

8 more elements

A device for operating a rechargeable electrical tool comprising:

a rechargeable tool portion containing a rechargeable battery;
means for line-powered operation of said tool portion;
means for battery-powered operation of said tool portion including said rechargeable battery;
an adapter including means for electrical connection of said tool portion to a current source, said tool portion being mechanically and electrically connectable and disconnectable from said adapter, said adapter supplying current to said tool portion when connected electrically with said tool portion and with said current source;
a holder shaped to hold said adapter alone and also said adapter together with said tool portion when said adapter is connected with said tool portion;
manually actuable means for releasably attaching the tool portion to the adapter wherein said means for said releasably attaching said adapter and said tool portion includes at least one adapter spring, said at least one adapter spring urging said adapter and said tool portion away from each other, and at least one snap coupling, which, on pressing together said tool portion and said adapter against a spring force of said adapter spring, locks said tool portion with said adapter, said means for releasably attaching the tool portion to the adapter being at least partially in the adapter.

3 more elements

A device for operating a rechargeable electrical tool comprising:

a rechargeable tool portion containing a rechargeable battery;
means for line-powered operation of said tool portion;
means for battery-powered operation of said tool portion including said rechargeable battery;
an adapter including means for electrical connection of said tool portion to a current source, said tool portion being mechanically and electrically connectable and disconnectable from said adapter, said adapter supplying current to said tool portion when connected electrically with said tool portion and with said current source;
a holder shaped to hold said adapter alone and also said adapter together with said tool portion when said adapter is connected with said tool portion;
means for releasably attaching the tool portion to the adapter;
means for releasably attaching the adapter to the holder;
means for detaching the adapter from the holder cooperating with said means for releasably attaching the tool portion to the adapter, so that, when said adapter is in said holder and when said means for releasably attaching the tool portion to the adapter is actuated to attach the tool portion to the adapter, the means for detaching the adapter detaches the adapter from the holder;
and
means for detaching the tool portion from the adapter cooperating with said means for releasably attaching the adapter and the holder, so that, when the adapter is in the holder and when said means for releasably attaching the adapter with the holder is actuated to attach the adapter with the holder, the tool portion is detachable from the adapter;
and
wherein said means for releasably attaching said adapter and said tool portion and also said means for detaching said tool portion from said adapter comprises a mechanical two-state device located in said adapter, said two-state device having a first stable position and a second stable position and being mechanically shiftable between said first and second stable positions, so that, when said tool portion is engaged with said adapter with said two-state device in said first position, said tool portion is electrically connected with said adapter but not attached to said adapter so that said rechargeable battery can be charged and with said two-state device in said second position said tool portion and said adapter are attached to each other and released from said holder for said line-powered operation.

9 more elements

A device for operating a rechargeable electrical tool comprising:

a rechargeable tool portion containing a rechargeable battery;
means for line-powered operation of said tool portion;
means for battery-powered operation of said tool portion including said rechargeable battery;
an adapter including means for electrical connection of said tool portion to a current source, said tool portion being mechanically and electrically connectable and disconnectable from said adapter, said adapter supplying current to said tool portion when connected electrically with said tool portion and with said current source;
a holder shaped to hold said adapter alone and also said adapter together with said tool portion when said adapter is connected with said tool portion;
means for releasably attaching the tool portion to the adapter;
means for releasably attaching the adapter to the holder;
means for detaching the adapter from the holder cooperating with said means for releasably attaching the tool portion to the adapter, so that, when said adapter is in said holder and when said means for releasably attaching the tool portion to the adapter is actuated to attach the tool portion to the adapter, the means for detaching the adapter detaches the adapter from the holder;
and
means for detaching the tool portion from the adapter cooperating with said means for releasably attaching the adapter and the holder, so that, when the adapter is in the holder and when said means for releasably attaching the adapter with the holder is actuated to attach the adapter with the holder, the tool portion is detachable from the adapter wherein said adapter has a substantially angular shape, one portion of said adapter being shaped to fit partially to one side of said tool portion and another portion of said adapter being shaped to fit to a lower end of said tool portion, and wherein said interlocking means for releasably locking said adapter and said tool portion comprises an operating projection provided on said lower end of said tool portion in the vicinity of said one side, said operating projection being engagable in a recess of said adapter;
a clip-receiving tool portion cavity provided in said side of said tool portion and spaced from said lower end of said tool portion, said tool portion cavity containing at least one locking stud projecting from said side of said tool portion;
and a locking clip attached to and projecting from said other portion of said adapter and engagable in said tool portion cavity when said tool portion is engaged with said adapter.

9 more elements

A device for operating a rechargeable electrical tool comprising:

a rechargeable tool portion containing a rechargeable battery;
means for line-powered operation of said tool portion;
means for battery-powered operation of said tool portion including said rechargeable battery;
an adapter including means for electrical connection of said tool portion to a current source, said tool portion being mechanically and electrically connectable and disconnectable from said adapter, said adapter supplying current to said tool portion when connected electrically with said tool portion and with said current source;
a holder shaped to hold said adapter alone and also said adapter together with said tool portion when said adapter is connected with said tool portion;
means for releasably attaching the tool portion to the adapter;
means for releasably attaching the adapter to the holder;
means for detaching the adapter from the holder cooperating with said means for releasably attaching the tool portion to the adapter, so that, when said adapter is in said holder and when said means for releasably attaching the tool portion to the adapter is actuated to attach the tool portion to the adapter, the means for detaching the adapter detaches the adapter from the holder;
and
means for detaching the tool portion from the adapter cooperating with said means for releasably attaching the adapter and the holder, so that, when the adapter is in the holder and when said means for releasably attaching the adapter with the holder is actuated to attach the adapter with the holder, the tool portion is detachable from the adapter;
wherein said means for releasably attaching said adapter and said holder comprise a conical stud of said holder engageable in a passage of said adapter and a plurality of spreading arms of said adapter engagable under edges of a recess of said holder, and
wherein said means for detaching the adapter from the holder comprise the conical stud of the holder.

9 more elements

A device for operating a rechargeable electrical tool comprising:

a rechargeable tool portion containing a rechargeable battery;
means for line-powered operation of said tool portion;
means for battery-powered operation of said tool portion including said rechargeable battery;
an adapter including means for electrical connection of said tool portion to a current source, said tool portion being mechanically and electrically connectable and disconnectable from said adapter, said adapter supplying current to said tool portion when connected electrically with said tool portion and with said current source;
a holder shaped to hold said adapter alone and also said adapter together with said tool portion when said adapter is connected with said tool portion;
means for releasably attaching the tool portion to the adapter;
means for releasably attaching the adapter to the holder;
means for detaching the adapter from the holder cooperating with said means for releasably attaching the tool portion to the adapter, so that, when said adapter is in said holder and when said means for releasably attaching the tool portion to the adapter is actuated to attach the tool portion to the adapter, the means for detaching the adapter detaches the adapter from the holder;
and
means for detaching the tool portion from the adapter cooperating with said means for releasably attaching the adapter and the holder, so that, when the adapter is in the holder and when said means for releasably attaching the adapter with the holder is actuated to attach the adapter with the holder, the tool portion is detachable from the adapter;
and wherein said tool portion is provided with a tool portion cavity and said adapter is formed to substantially fit in the tool portion cavity of said tool portion;
and said means for releasably attaching the adapter and the tool portion comprise an spring-loaded axial pin projecting from the tool portion and an axial passage provided in the adapter, said spring-loaded axial pin entering said axial passage on engagement of said adapter and said tool portion, the spring-loaded axial pin projecting from said tool portion into said cavity and into said axial passage of said adapter, when said adapter is connected with said tool portion;
and a plurality of projections and tongues and additional grooves and recess provided in said tool portion and said adapter, so that motion of said adapter from said tool portion in a longitudinal direction of said pin is prevented, when said tool portion is attached to said adapter.

10 more elements

A device for operating a rechargeable electrical tool comprising:

a rechargeable tool portion containing a rechargeable battery;
means for line-powered operation of said tool portion;
means for battery-powered operation of said tool portion including said rechargeable battery;
an adapter including means for electrical connection of said tool portion to a current source, said tool portion being mechanically and electrically connectable and disconnectable from said adapter, said adapter supplying current to said tool portion when connected electrically with said tool portion and when connected with said current source;
a holder shaped to hold said adapter alone and also said adapter together with said tool portion when said adapter is connected with said tool portion;
and
a mechanical two-state device in said adapter for interlocking the tool portion with the adapter and releasing the adapter from the holder and also for releasing the tool portion from the adapter while connecting the adapter with the holder, said two-state device having a first stable position and a second stable position and being mechanically shiftable between said first and second stable positions, in said first position said tool portion being electrically connected with said adapter but not mechanically locked with said adapter so that said rechargeable battery can be charged and in said second position said tool portion and said adapter being locked together and released from said holder for said line-powered operation, said two-state device having a spring-loaded prime lever pivotally mounted in said adapter for releasable locking of said tool portion and said adapter, said prime lever being engagable under a ring-like shoulder of said tool portion;
and a locking lever connected with said prime lever engagable in a recess in said holder, said locking lever being engaged in the recess when said mechanical two-state device is in said first position to connect said adapter and said holder and being disengaged from the recess when said mechanical two-state device is in said second position so that said adapter is released from said holder.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 07/653,671Filed 11 Feb 1991 · continuation
Priority: DE 381607011 May 1988
Granted: 27 Oct 1992
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

B26B 19/286
Drive layout for hair clippers or dry shavers, e.g. providing for electromotive drive: providing for two or more different electrical power sources
H02J 7/751
Characterised by the mechanical construction: concerning the insertion or the connection of the batteries
Y10S 30/01
Cutlery: rechargeable battery operated
Y10S 439/929
Electrical connectors: connecting base plate or shelf type holder

Family

Serial347,331Parent of this continuation · filed 3 May 1989
US 5,030,902 AParent of this continuation
US 5,159,256 AThis patent

From the US filing history. Foreign family members aren’t listed.

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Citations

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