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US4220103A Expired / Lapsed US ⏱️ 0.0 years remaining

Auxiliary table for sewing machines of a free arm type

Assignee: Aisin Corp
•
Filing: 1979-07-19
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Granted: 1980-09-02
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Expires: 1999-07-19
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Abstract

Abstract An auxiliary table for sewing machines of free arm type which includes a main body, a cylindrical bed integrated with the main body, a base member fixed to the main body, a hinge plate rotatably mounted on the base member at one end thereof, and an auxiliary table engaged with the other end of the hinge plate and slidable therewith toward and away from the cylindrical bed. A plate spring is connected to the base member for downwardly biasing the hinge plate, thereby preventing the hinge plate from swinging movement and the auxiliary table from vibrating for flat work sewing. The hinge plate provides for the auxiliary table to be moved in a first position in contact with the free arm while for tubular work sewing the table can be swung in a second position separately from the arm.

Inventors

  • 👤 Takahiko Kasahara
  • 👤 Shigeharu Shichi
  • 👤 Senji Suito

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 20:45
CPC Classifications
D; D05; D05B; D05B77/00

Claims Analysis

Total Claims: 6
Claim 1
Independent Claim 98 words
A sewing machine having a main body, a cylindrical bed integrated with said main body and a base member fixed to said main body, comprising: a hinge plate rotatably mounted on said base member at one end thereof; an auxiliary table engaged with the other end of said hinge plate and slidable therewith relative to said cylindrical bed whereby said table can be brought into a position either continguous to the cylindrical bed or spaced therefrom; and means for biasing said hinge plate, wherein swinging movement of said hinge plate and vibration of said auxiliary table is prevented.
Claim 2
Dependent Claim 98 words
A sewing machine having a main body, a cylindrical bed integrated with said main body and a base member fixed to said main body, comprising: a hinge plate rotatably mounted on said base member at one end thereof; an auxiliary table engaged with the other end of said hinge plate and slidable therewith relative to said cylindrical bed whereby said table can be brought into a position either continguous to the cylindrical bed or spaced therefrom; and means for biasing said hinge plate, wherein swinging movement of said hinge plate and vibration of said auxiliary table is prevented.
Claim 3
Dependent Claim 52 words
A sewing machine as set forth in claim 1, said hinge plate including a hole formed therein and said means for biasing said hinge plate comprising a plate spring of which one end is fixed to said base member and the other is inserted into said hole formed by said hinge plate.
Claim 4
Dependent Claim 41 words
A sewing machine as set forth in claim 2, said base member comprising means for rotatably supporting one end portion of said hinge plate about an axis of rotation and the other end thereof is pivotably mounted to the auxiliary table.
Claim 5
Dependent Claim 31 words
A sewing machine as set forth in claim 3, said hinge plate comprising spherical portions formed at both ends thereof for cooperation with said auxiliary table and said base plate, respectively.
Claim 6
Dependent Claim 25 words
A sewing machine as set forth in claim 4, further comprising an elastic cushion member fixedly attached adjacent one end portion of said auxiliary table.

References Cited (Backward Citations)

GB572238A Cited
US3013514A Cited
US3863582A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1983-09-02 1984-03-03 1984-09-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1987-09-02 1988-03-03 1988-09-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1991-09-02 1992-03-03 1992-09-02 $7700.00 Window Closed / Lapsed

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