US 4,290,657 AGranted

Sewing cabinet with vertically movable table

AssigneeThe Singer Company

InventorRobert V. Haas

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Abstract

A sewing machine cabinet in which a sewing machine 43 can be placed in operable position, and the cabinet has as work table 17 movable between an upper position level with the bed of the machine and a lower position giving free access to the cylinder bed 44 of the machine. Support arms 54, 56, 62, 63 on the sides of the cabinet support brackets 48, 49 that carry the work table 17 in a path that moves vertically between the upper and lower positions without moving transversely to one side. Leaves 23, 24 can be attached to the ends of the work table 17 to move up and downward so as always to be at the same level as the work table to provide extra space for the work at the most convenient level. The work table 17 can be moved up and down by a hand lever 92 or foot lever 31 with a latch 37 to engage the lever to hold the work table in its upper position. A gravity operated member 85 can fall into place against a shelf 86 to hold the work table 17 in its upper position and to prevent inadvertent descent if the latch 37 that controls the lever is released at the wrong time.

Claims13

Dependent claims

A cabinet structure comprising:

first and second side support members spaced apart a fixed distance;
a work table extending transversely between the first and second side members and movable vertically between an upper position and a lower position;
a first bracket to support one end of the work table;
a second bracket to support the other end of the work table;
a first pair of support arms each comprising a first end pivotally attached to the first support member and a second end pivotally attached to the first bracket, the arms being pivotally moving substantially parallel to each other;
a second pair of support arms substantially the same length as the first pair of arms, respectively, and each comprising a first end pivotally attached to the second support member and a second end pivotally attached to the second bracket, the arms of the second pair being pivotally movable substantially parallel to each other;
pressure means connected to the arms of the first pair to pivot the first pair of arms between first positions in which the first bracket supports one end of the work table in its upper position and a second position in which the first bracket supports said one end of the work table in its lower position;
connecting means connecting the arms of the first pair with the arms of the second pair to pivot the arms of the second pair simultaneously with the arms of the first pair to support the other end of the work table in corresponding upper and lower positions;
and
latching means to hold both of the brackets in a position in which the table means is elevated to its upper position.

7 more elements

Dependencies are inferred from the claim text.