Sewing machine with a built-in driving motor
First Claim
Patent Images
1. A sewing machine comprising:
- a bed;
a pedestal supported by said bed with a left side wall and a right side wall and having an internal hollow between said left and right side walls;
an arm having one end supported by said pedestal and having an opposite end extending in a horizontal direction;
a motor for driving said sewing machine;
a bottom shaft rotatably provided in said bed;
transmitting means provided near to said left side wall in said internal hollow for transmitting the driving force of said motor to said bottom shaft; and
an accommodating means provided in said one end of said arm for accommodating said motor on the right side of said transmitting means, said accommodating means defining an accommodating space across an extension line of said right wall, said motor being mounted detachably from the accommodating space in said horizontal direction.
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Accused Products
Abstract
A sewing machine includes a bed, a pedestal supported by the bed and an arm extending generally parallel to the bed. One end of the arm is supported by the pedestal, this end having a driving motor located therein. The location of the driving motor suppresses vibration created when the sewing machine is operated and facilitates access thereto.
13 Citations
13 Claims
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1. A sewing machine comprising:
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a bed; a pedestal supported by said bed with a left side wall and a right side wall and having an internal hollow between said left and right side walls; an arm having one end supported by said pedestal and having an opposite end extending in a horizontal direction; a motor for driving said sewing machine; a bottom shaft rotatably provided in said bed; transmitting means provided near to said left side wall in said internal hollow for transmitting the driving force of said motor to said bottom shaft; and an accommodating means provided in said one end of said arm for accommodating said motor on the right side of said transmitting means, said accommodating means defining an accommodating space across an extension line of said right wall, said motor being mounted detachably from the accommodating space in said horizontal direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A sewing machine comprising:
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a bed; a bottom shaft rotatably provided in said bed; a first timing pulley mounted on said bottom shaft; a pedestal supported by said bed; an arm having an inner surface, one end of said arm being supported by said pedestal and an opposite end of said arm extending in a horizontal direction; a main shaft rotatably provided in said arm; a motor for driving said sewing machine, said motor being mounted in said one end portion of said arm, said motor having a housing and an output shaft; a coupling for coaxially connecting said main shaft with said output shaft of said motor; a second timing pulley mounted on an outer circumference of said coupling; and a timing belt wound around said first timing pulley and said second timing pulley, whereby said motor is detachable from said sewing machine without requiring removal of said second timing pulley. - View Dependent Claims (12)
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13. A sewing machine comprising:
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a bed; a pedestal supported by said bed; an arm having an inner surface, one end of said arm being supported by said pedestal and an opposite end of said arm extending in a horizontal direction; a motor for driving said sewing machine, said motor being mounted in said one end portion of said arm, said motor having a motor housing and a motor output shaft; at least one elastic member provided between said inner surface of said arm and an outer surface of said motor housing; a main shaft rotatably provided in said arm; a bottom shaft rotatably provided in said bed; first transmitting means for transmitting a driving force of said motor to said main shaft, wherein said first transmitting means includes a coupling for coaxially connecting said main shaft with said motor output shaft; second transmitting means for transmitting the driving force of said motor to said bottom shaft, wherein said second transmitting means includes a first timing pulley mounted on said bottom shaft; a second timing pulley mounted on an outer circumference of said coupling; and a timing belt would around said first timing pulley and second timing pulley, said motor being detachable from said sewing machine without requiring removal of either of said timing pulleys.
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Specification