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1. EP0401287 - POWER-OPERATED DEVICE WITH A COOLING FACILITY.

Office European Patent Office
Application Number 89903428
Application Date 23.02.1989
Publication Number 0401287
Publication Date 12.12.1990
Publication Kind B1
IPC
B25F 5/00
BPERFORMING OPERATIONS; TRANSPORTING
25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; HANDLES FOR HAND IMPLEMENTS; WORKSHOP EQUIPMENT; MANIPULATORS
FCOMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
5Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
B23D 47/12
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
47Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
12of drives for circular saw blades
B23Q 1/00
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL, CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
1Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
H01H 9/06
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
9Details of switching devices, not covered by groups H01H1/-H01H7/104
02Bases, casings, or covers
06Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
H01H 9/52
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
9Details of switching devices, not covered by groups H01H1/-H01H7/104
52Cooling of switch parts
H01M 2/10
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2Constructional details, or processes of manufacture, of the non-active parts
10Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
CPC
B23D 47/12
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
47Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
12of drives for circular saw blades
B23Q 1/0009
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
QDETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING
1Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
0009Energy-transferring means or control lines for movable machine parts; Control panels or boxes; Control parts
H01H 9/06
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
9Details of switching devices, not covered by groups H01H1/00 - H01H7/00
02Bases, casings, or covers
06Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
H01H 9/52
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
9Details of switching devices, not covered by groups H01H1/00 - H01H7/00
52Cooling of switch parts
H01H 2009/065
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
9Details of switching devices, not covered by groups H01H1/00 - H01H7/00
02Bases, casings, or covers
06Casing of switch constituted by a handle serving a purpose other than the actuation of the switch, e.g. by the handle of a vacuum cleaner
065Battery operated hand tools in which the battery and the switch are directly connected
H01M 2/1022
Applicants BLACK & DECKER INC
Inventors KATZ FRIEDRICH J
ABBRATOZZATO SALVATORE R
Designated States
Priority Data 07160908 26.02.1988 US
8900733 23.02.1989 US
Title
(DE) DURCH KRAFT ANGETRIEBENE EINRICHTNG MIT KÜHLANLAGE.
(EN) POWER-OPERATED DEVICE WITH A COOLING FACILITY.
(FR) DISPOSITIF ACTIONNE PAR MOTEUR AVEC AGENCEMENT DE REFROIDISSEMENT.
Abstract
(EN)
A cordless power-operated device, such as a saw (20), is powered by a low level D.C. voltage provided by battery pack cells to operate the saw in a cordless mode. The cells are housed in a container (32) which fits into a cavity (23) formed in a housing (22) of saw (20). Another container (66) includes a first section (64) which is shaped externally in the same configuration as container (32). First section (64) houses a voltage converter (62) which converts conventional A.C. voltage, such as 120 volts at 60 Hz, to the low level D.C. voltage required to operate saw (20). Container (66) can be inserted into cavity (23) of saw (20) and voltage converter (62) can be connected to a conventional A.C. source to operate the saw in a corded mode. Container (66) also includes a second section (68) which houses a cooling motor (70). Cooling motor (70) provides powered cooling of saw motor (28), the cooling motor and voltage converter (62).

(FR)
Un dispositif actionné par moteur non raccordé au réseau, tel qu'une scie (20), est alimenté en énergie par une faible tension de C.C. fournie par les cellules d'un bloc d'alimentation qui actionnent la scie lorsqu'il n'est pas raccordé au réseau. Les cellules sont logées dans un boîtier (32) qui rentre dans une cavité (23) du logement (22) de la scie (20). Un autre boîtier (66) comprend une première section (64) dont la forme extérieure correspond au boîtier (32). La première section (64) contient un transformateur de tension (62) qui transforme une tension de C.A. conventionnelle, telle qu'une tension de 120 volts à 60 Hz, en une faible tension de C.C., requise pour actionner la scie (20). Le boîtier (66) peut être inséré dans la cavité (23) de la scie (20) et le transformateur de tension (62) peut être connecté à une source conventionnelle de C.A. afin d'actionner la scie lorsqu'elle est raccordée au réseau. Le boîtier (66) comprend également une seconde section (68) qui contient un moteur de refoidissement (70). Le moteur de refroidissement (70) se refroidit lui-même le moteur (28) de la scie et le transformateur de tension (62).