JPS55147948A - Brush holder device - Google Patents
Brush holder deviceInfo
- Publication number
- JPS55147948A JPS55147948A JP5434879A JP5434879A JPS55147948A JP S55147948 A JPS55147948 A JP S55147948A JP 5434879 A JP5434879 A JP 5434879A JP 5434879 A JP5434879 A JP 5434879A JP S55147948 A JPS55147948 A JP S55147948A
- Authority
- JP
- Japan
- Prior art keywords
- brush
- commutator
- support member
- rotational speed
- center
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/38—Brush holders
- H01R39/40—Brush holders enabling brush movement within holder during current collection
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
PURPOSE:To minimize the abrasion of a brush, and carry out commutation normally, by moving a brush support member in accordance with the rotational speed of a rotary machine toward the center of a commutator so as to vary the pressing force of the brush. CONSTITUTION:A brush 3 is inserted into a brush retaining hole 1a provided in a brush holder body 1, and urged by a coiled spring 6 toward a commutator 2a. A base end of the spring 6 is fixed to a pin 5 provided in a support member 4, which is adapted to be moved along guide grooves 1c provided in the brush holder body 1, toward the center of the commutator 2a. As the rotational speed detected of a rotary machine is increased, the support member 4 is moved from a position P1 to a position P5 toward the center of the commutator 2a. As a result, the pressing force of the spring 6 is varied in accordance with the rotational speed of the rotary machine. This allows the rate of abrasion of the brush 3 to be reduced. Also, the number of vibration of the brush can be controlled to a suitable level to carry out commutation normally.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5434879A JPS55147948A (en) | 1979-05-02 | 1979-05-02 | Brush holder device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5434879A JPS55147948A (en) | 1979-05-02 | 1979-05-02 | Brush holder device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55147948A true JPS55147948A (en) | 1980-11-18 |
Family
ID=12968112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5434879A Pending JPS55147948A (en) | 1979-05-02 | 1979-05-02 | Brush holder device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55147948A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7380821B2 (en) | 2004-01-27 | 2008-06-03 | Takata Corporation | Passenger protection apparatus |
-
1979
- 1979-05-02 JP JP5434879A patent/JPS55147948A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7380821B2 (en) | 2004-01-27 | 2008-06-03 | Takata Corporation | Passenger protection apparatus |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CA2045357A1 (en) | Ledge for resiliently supporting a drainage wire of a paper making machine | |
SE7603336L (en) | HALL DRILLING DEVICE WITH PRE-DETERMINED, APPROPRIATE ADJUSTABLE DRILLING DEPTH | |
EP0111368A3 (en) | Device for locating and locking a work holding pallet on a machine tool fixture | |
ES479830A1 (en) | Automatic tool changing device for a machining center | |
IT1115757B (en) | TOOL HOLDER TOWER SET FOR MACHINE TOOLS SPINDLE SWIVEL PART HOLDER | |
IT1241553B (en) | BRUSH HOLDER DEVICE FOR ELECTRIC MOTORS WITH ROTATING COLLECTOR. | |
ES8605662A1 (en) | Cutting head for yarn cutting device. | |
GB1360309A (en) | Brush roll assemblies in or for cleaning devices | |
ES2042648T3 (en) | IMPACT APPARATUS, ROTATING TYPE. | |
ES250525U (en) | Shaking machine, especially for Indian ink writing device | |
DE3875615D1 (en) | CUTTER TOOL HOLDER. | |
JPS55147948A (en) | Brush holder device | |
FR2324401A1 (en) | Drilled material catching equipment - has cup shaped vessel open to work face with hole for tool | |
JPS5596264A (en) | Curvature working grinder | |
JPS563161A (en) | Tool replacing mechanism for machine tool | |
GB1429968A (en) | Clamping tool | |
FR2356386A1 (en) | Machine to fit eyelets - has upper and lower fitting tools and sliding spindle in upper tool | |
SU1748999A1 (en) | Guide device to centerless grinder | |
IT1070389B (en) | MACHINE TOOL TABLE WITH SLIDING TROLLEY GUIDE | |
JPS52100692A (en) | Specific centerless end surface grinding machine | |
FR2380843A1 (en) | Copying grinding machine for turbine blades - has grinding wheel driven by ball joined arm with second ball locating against end | |
JPS55130125A (en) | Peeling method of insulation covering | |
JPS6432890A (en) | Embroidering frame driving apparatus of sewing machine | |
FR2269984A1 (en) | Device for cleaning wax from skis - has ski guide roller and driven absorbent roller for cleaning liquid | |
JPS5364362A (en) | Machine hand |