Old mechanical sewing machines have long been discontinued, because they could not provide high quality stitches and speed. They were replaced by electrical analogues that win in everything. But this does not mean at all that the solid assistants of our grandmothers have sunk into oblivion - the cars still cope with the tasks assigned to them, delighting the owners with reliability and durability.
Types of sewing machine drives
There are only 2 ways to set the flywheel in motion: muscle power and an electric motor. In the first case, the pace of the sewing machine is set by the handle of the manual or foot pedal. In the second, to start the device, it is enough to press with the necessary effort on the control pedal.
Manual drive
This kind of mechanics involves starting the shaft using a small flywheel to which the handle is attached. The low speed of such a device is combined with a number of inconveniences: the right hand of the operator is busy bringing the machine into motion, and the movement of the tissue is controlled by the left. Therefore, soon such models were replaced by more practical ones.
Foot
To free the operator’s hands, the sewing machine was supplemented with a bed. Its design includes a movable pedal, during the movement of which the force through the leash is transmitted to the drive wheel. And already it with the help of belts drives the flywheel of the machine bed located on the table. The operator’s hands were freed, the speed and quality of the stitch increased.
Such a device is now convenient in the role of a teaching aid, since a seamstress can easily adjust the speed of his work in accordance with his capabilities. But it is difficult to move the heavy frame to the right place, its work cannot be called quiet, and it is quite difficult to develop the speed necessary for an experienced user. This is what caused users to switch to a more modern drive.
Electric
The electric motor was initially installed on the “manual” or “foot” machines that were familiar at that time in order to increase their productivity. Speed control is carried out by the foot of the operator - the stronger the pressure on the pedal, the greater the speed of the machine. Such sparks (pedal + servomotor up to 150 W) can be found even now, which is what owners of reliable rare mechanics use. But the work of the sewing machine itself remained quite loud, and its functionality is limited.
The era of "seamstresses"
The massive and simple mechanical ones were replaced by lighter, more compact and functional electric sewing machines. Their engine is built into the housing. And only the cable with the control pedal comes out. The first models were popularly called "seamstresses" because they were intended for delicate work.
In a modern store on the shelves you will not find sorting of sewing machines by drives, because they are all driven by an electric motor. Instead, there is a sorting by type of control on:
- mechanical - lever system of switches, characterized by a small number of options;
- electromechanical - buttons and levers, great functionality and an increased number of lines;
- computer - buttons and sensor, it is possible to set various programs, and often an embroidery module is already built into this technique.
When choosing a household sewing machine, it is better to focus on mechanical or electromechanical control, since they combine productivity, simplicity and reliability. Electronic (computer) - a tool for professionals whose work cannot be done without complex stitches.
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