Battery recharger turntable

• US 5,668,460 A
• Filed: 10/31/1994
• Issued: 09/16/1997
• Est. Priority Date: 10/31/1994
• Status: Expired due to Fees

• Current Assignee: Lashstar Incorporated
• Original Assignee: Lashstar Incorporated
• Inventors: Starzl, Ronald E., Lashlee, Curtiss N.
• Primary Examiner(s): TSO, EDWARD H
• Application Number:
  US08/331,983
• Time in Patent Office: 1,051 Days
• Field of Search: 320/2, 320/6, 320/15, 414/281, 414/282, 414/283, 414/284, 414/285, 414/286, 104/34
• US Class Current: 320/109
• CPC Class Codes: B60K 1/04 of the electric storage means for propulsion exchanging batteries for electric propulsion of vehicles B60L53/80; for auxiliary purposes only B60R16/04; supplying batteries to, or removing batteries from, vehicles B60S5/06
• CPC Class Codes: B60L 53/80 Exchanging energy storage elements, e.g. removable batteries
• CPC Class Codes: H01M 10/441 for several batteries or cells simultaneously or sequentially
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y02T 10/7072 Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
• CPC Class Codes: Y02T 90/12 Electric charging stations

Abstract

A turntable is provided for use in recharging batteries of the type used in battery powered forklift trucks and the like. The turntable includes a peripheral array of charging stations each including a support platform and a battery charger for connection to and recharging of a battery on the platform. The turntable is rotatably driven in a stepwise manner to index the charging stations in succession to a transfer position. A push-pull ram at the transfer position draws a depleted battery from a forklift truck onto the platform of an empty charging station. The turntable is then indexed to move a recharged battery to the transfer position, and the push-pull ram installs the recharged battery on the forklift truck.

Claims

1. Battery recharger apparatus for use in recharging batteries of a battery powered vehicle, said recharger apparatus comprising:

a movable frame including a plurality of charging stations each including a battery support platform and charger means for recharging a battery on said platform;

drive means for moving said frame to move said charging stations one at a time to a transfer position;

means for elevationally adjusting the platform of the charging station at said transfer position; and

a transfer mechanism at said transfer position for slidably transferring a depleted battery within a battery powered vehicle parked at said transfer position from the vehicle and onto the platform of a charging station at said transfer position whereby said depleted battery can be connected to said charger means for recharging, said transfer mechanism being further operable for slidably transferring a recharged battery from the platform of the charging station at said transfer position to the vehicle parked at said transfer position;

said transfer mechanism including means for vacuum drawing a battery from the vehicle at said transfer position onto the platform of the charging station at said transfer position, and for pushing a battery from the platform at said transfer position onto the vehicle at said transfer position.

2. The battery recharger apparatus of claim 1 wherein said frame comprises a rotary turntable having said plurality of charging stations arranged in a circular array about the periphery of said turntable.

3. The battery recharger apparatus of claim 2 wherein said transfer mechanism vacuum means engages and draws a battery from the vehicle at said transfer position in a radial direction relative to said turntable to transfer a battery from the vehicle onto the platform of the charging station at said transfer position, and further wherein said transfer mechanism pushing means engages and pushes a battery from the platform of the charging station at said transfer position in a radial direction relative to said turntable onto the vehicle.

4. The battery recharger apparatus of claim 1 further including park alignment means for indicating correct positioning of the vehicle at said transfer position.

5. A battery recharger turntable for use in recharging batteries transported to said turntable by a vehicle, said recharger turntable comprising:

a turntable frame defining a plurality of battery charging stations arranged in a circular array about the turntable periphery, each of said charging stations including a support platform for receiving and supporting a battery to be recharged;

charger means for connection to batteries carried by said turntable for recharging said batteries;

means defining a transfer position at one side of said turntable in association with one of said charging stations;

means for rotating said turntable frame to move said charging stations in succession to said transfer position; and

a transfer mechanism for slidably moving a depleted battery on a vehicle parked at said transfer position from the vehicle onto the platform of said charging station at said transfer position, and for slidably moving a recharged battery from the platform of the charging station at said transfer position onto the vehicle at said transfer position, said transfer mechanism including means for vacuum drawing a battery from the vehicle at said transfer position in a radial direction relative to said turntable onto the platform of the charging station at said transfer position, and for pushing a battery from the platform at said transfer position in a radial direction relative to said turntable onto the vehicle at said transfer position.

6. The battery recharger turntable of claim 5 including means for elevationally adjusting the platform of the charging station at said transfer position.

7. The battery recharger turntable of claim 5 further including park alignment means for indicating correct positioning of the vehicle at said transfer position.

8. The battery recharger turntable of claim 5 wherein the platform of each of said charging station includes relatively low friction slide tracks for slidably supporting a battery.

9. Battery recharger apparatus for use in recharging batteries transported by a vehicle, said recharger apparatus comprising:

a plurality of charging stations each including a battery support platform;

means for recharging batteries carried on the platforms of said charging stations;

means defining a transfer position for parking a vehicle carrying a battery to be recharged; and

transfer means for vacuum engagement with and for slidably transferring the battery from the vehicle at said transfer position onto the support platform of one of said charging stations, and for slidably pushing a recharged battery from the support platform of another of said charging stations onto the vehicle at said transfer position.

10. The battery recharger apparatus of claim 9 including means for elevationally adjusting the platform of the charging station at said transfer position.