Patent US5034640A successfully refreshed from Google Patents.
US5034640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
End frame of a small motor with multiple openings for multiple terminal locations
Assignee: Asmo Co Ltd
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Filing: 1990-12-18
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Granted: 1991-07-23
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Expires: 2010-12-18
Abstract
Abstract An end frame of a small motor comprises an outer frame constructed of a yoke and the end frame which is fixed at an end of the yoke and has various directions and/or positions for extraction of terminals to be fixedly provided in the end frame, the end frame (1) of the small motor being characterized in that inserting holes (3˜10) for forcedly fixing the terminals (2) serving as brush holders, (14a) are made previously in the end frame (20) in multiple positions and/or directions based on multiple usages of the small motor.
Inventors
- 👤 Masaaki Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:49
CPC Classifications
H; H02; H02K; H02K5/00; H02K5/04; H02K5/22; H02K5/225; H01; H01R; H01R24/00; H01R24/66; H02K5/14; H02K5/143; H02K5/145; H01R2103/00; H01R39/00; H01R39/02; H01R39/36
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
192 words
A small motor comprising a yoke, an end frame element connected to said yoke, said yoke and end frame element together defining an outermost frame structure of said motor, an armature rotatably supported within an interior defined by said outermost frame structure, said end frame being of oval-shape in section and connected to a substantially identically oval-shaped end of said yoke, said oval shape defining a longitudinal direction, said end frame element having four corner regions and first and second openings disposed at each of said corner regions, each of said first and second openings opening into said interior, each of said first openings being elongated parallel to said longitudinal direction, and each of said second openings being elongated perpendicularly to said longitudinal direction, terminal leads being provided in said end frame element, a set of two terminals fixedly connected within two of said openings, each terminal including an outer terminal portion and an inner brush spring, said brush spring carrying a brush which contacts a commutator portion of said armature, and two terminal leads being provided in said end frame element and connected to respective ones of said two terminal portions.
Claim 2
Dependent Claim
192 words
A small motor comprising a yoke, an end frame element connected to said yoke, said yoke and end frame element together defining an outermost frame structure of said motor, an armature rotatably supported within an interior defined by said outermost frame structure, said end frame being of oval-shape in section and connected to a substantially identically oval-shaped end of said yoke, said oval shape defining a longitudinal direction, said end frame element having four corner regions and first and second openings disposed at each of said corner regions, each of said first and second openings opening into said interior, each of said first openings being elongated parallel to said longitudinal direction, and each of said second openings being elongated perpendicularly to said longitudinal direction, terminal leads being provided in said end frame element, a set of two terminals fixedly connected within two of said openings, each terminal including an outer terminal portion and an inner brush spring, said brush spring carrying a brush which contacts a commutator portion of said armature, and two terminal leads being provided in said end frame element and connected to respective ones of said two terminal portions.
Claim 3
Dependent Claim
50 words
A small motor according to claim 1, wherein said end frame element has an outer face including a plurality of terminal-receiving grooves leading from respective ones of said openings, each of said grooves being sized to receive said terminal portion which has been bent laterally relative to its respective opening.
Claim 4
Dependent Claim
42 words
A small motor according to claim 1, wherein said end frame element has an outer face including a pair of lead-receiving grooves for receiving respective ones of said leads, said lead-receiving grooves being situated at opposite sides of said end frame element.
Claim 5
Dependent Claim
32 words
A small motor according to claim 3, wherein said outer face of said end frame element includes hook-shaped claws disposed adjacent said lead-receiving grooves for holding said leads within said lead-receiving grooves.
Claim 6
Dependent Claim
22 words
A small motor according to claim 1, wherein said end frame element is plate-shaped and connected to an end of said yoke.
Claim 7
Dependent Claim
20 words
A small motor according to claim 1, wherein said openings are formed to have hook-shaped sections for holding hook-shaped terminals.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-22 | 1995-01-21 | 1995-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-22 | 1999-01-21 | 1999-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-22 | 2003-01-21 | 2003-07-23 | $7700.00 | Window Closed / Lapsed |