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Power tool system and adapter therefor

a technology of adapters and power tools, applied in the field of power tool systems, can solve the problem that the adapter cannot be easily dislodged from the power tool during operation, and achieve the effect of avoiding the need for adapters

Inactive Publication Date: 2014-06-05
MAKITA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent describes a power tool that has a detachable adapter for adding different electrical functions to it. The detachable adapter is protected from damage by the housing and battery pack, making it durable in rough work environments. The adapter can be easily attached and detached from the power tool, and it may also communicate maintenance information about the power tool. The technical benefits of this patent include increased versatility, durability, and communication capabilities for power tools.

Problems solved by technology

In addition or in the alternative, the adapter can be adapted or configured to be more firmly or fixedly attached to the power tool than con-ventional adapters, so that the adapter will not be readily dislodged from the power tool during operation.

Method used

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  • Power tool system and adapter therefor
  • Power tool system and adapter therefor
  • Power tool system and adapter therefor

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Experimental program
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first exemplary embodiment

[0216]Referring to FIGS. 1A-1C, a first exemplary embodiment of a power tool system 1 according to the present teachings will now be described in further detail. The power tool system 1 may generally comprise a cordless (battery-powered) power tool 10, a battery pack 40, an adapter 70 and an external device 100.

[0217]The power tool 10 according to this exemplary embodiment generally comprises a controller 12, a discharge information detector 14, a memory 16 and a communicator 18. Power is supplied to the power tool 10 via two battery terminals 22 to drive the electric motor M by opening and closing power FET 20, e.g., utilizing a pulse-width modulation technique as is well known in the art. The operation of the motor M is manually controlled by a switch 28, which may be a trigger switch as is well known in the art. As shown in FIG. 1C, the motor M is enclosed in a housing 32 and drives a tool chuck 30, to which an appropriate tool, e.g., a screw bit, may be connected. A reduction ge...

second exemplary embodiment

[0232]The second exemplary embodiment shares many overlapping features, functions, circuits and structures with the first exemplary embodiment. Therefore, circuits and structures that operate in the same or substantially the same way have been assigned the same reference numbers and a further description thereof is not necessary. Reference is made to the first exemplary embodiment for any features, functions, circuits or structures that are not expressly described in the second exemplary embodiment, which are incorporated by reference into the present embodiment.

[0233]The power tool system 1′ of the second exemplary embodiment shown in FIG. 2A primarily differs from the first exemplary embodiment in that the adapter 70′ is configured to directly connect to the battery pack 40′, instead of directly connecting to the power tool 10′. The external device 100 communicates with the adapter 70′ and operates in the same way as the first embodiment.

[0234]Thus, in this exemplary embodiment, t...

third exemplary embodiment

[0239]The third exemplary embodiment also shares many overlapping features, functions, circuits and structures with the first and second exemplary embodiments. Therefore, circuits and structures that operate in the same or substantially the same way have been assigned the same reference numbers and a further description thereof is not necessary. Reference is made to the first or second exemplary embodiment for any features, functions, circuits or structures that are not expressly described in the third exemplary embodiment, which are incorporated by reference into the present embodiment.

[0240]The power tool system 1″ of the third exemplary embodiment shown in FIG. 3A primarily differs from the first and second exemplary embodiments in that the adapter 70″ is configured to directly connect to both the battery pack 40 and the power tool 10′. The external device 100 communicates with the adapter 70″ and operates in the same way as the first and second exemplary embodiments.

[0241]Thus, ...

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Abstract

A power tool system includes a hand-held power tool having a housing with a battery pack interface, an electrically-driven device and a first connector. A battery pack is detachably attached to the battery pack interface and supplies current to the electrically-driven device. An adapter has a second connector physically and electrically connected with the first connector in a detachable manner. The adapter receives power from the battery pack via the hand-held power tool and provides at least one additional electrical function to the hand-held power tool or performs at least one additional electrical function that the hand-held power tool is not otherwise capable of performing. Further, the adapter is at least partially disposed in a space defined in part by the housing and in part by the battery pack when the housing and battery pack are attached to each other.

Description

CROSS-REFERENCE[0001]This application claims priority to U.S. Provisional Application No. 61 / 511,092 filed on Jul. 24, 2011, No. 61 / 564,513 filed on Nov. 29, 2011, No. 61 / 581,950 filed on Dec. 30, 2011, and No. 61 / 593,533 filed on Feb. 1, 2012, the contents of all of which are hereby incorporated by reference as if fully set forth herein.TECHNICAL FIELD[0002]The present invention generally relates to power tool systems, e.g., hand-held, battery-powered power tools, and to adapters that provide additional functionality, e.g., electrical functions, to the power tools.BACKGROUND ART[0003]Electronic adapters for use with power tools are generally known in the art.[0004]For example, U.S. Pat. No. 7,357,526 discloses a power tool and accessory (adapter) combination. The power tool has multiple terminals to which a battery pack or battery assembly can be connected. The accessory (adapter) can be electrically connected to an unused tool terminal that is otherwise engageable by a battery pac...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B25F5/02B25F3/00
CPCB25F5/02G08C17/02Y02E60/10H02J7/00B25F3/00H02J7/0042B25F5/00G05B13/024
Inventor FURUI, NOBUYASUSUZUKI, HITOSHIFUKUMOTO, MASAAKIUMEMURA, TAKUYAITO, KOSUKESENGIKU, HITOSHI
Owner MAKITA CORP
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