Field of the invention and Related Art Statement
The present invention relates to a sewing machine and more particularly relates to a sewing machine provided with an indication device.
With development of the electronic technology in the recent years, there have been prevailed many sorts of sewing machines having many functions including an indication device which is provided with a liquid crystal display and the like for indicating the contents of information for controlling the operation of sewing machine.
Generally the indication device is arranged on the arm or standard of the sewing machine because the sewing machine has no other space for proper arrangement of the indication device.
However, the space of the arm or standard is limited. Further it is actually required to provide an operating part including operating switches and the like in addition to the display. On the other hand, with increase of functions and enlargement of the display in the recent years, it is generally desired to enlarge the display in connection with the sewing machine. In order to actually enlarge the display, it is required to enlarge the area of the machine arm or standard, eventually to enlarge the sewing machine. Thus it is very difficult to employ a large sized display in connection with the sewing machine.
It is, therefore, an object of the invention to solve such conventional technical problems.
For attaining the object of the invention, a sewing machine has a machine body composed at least of a bed, a standard standing up from the bed, an arm extending from the standard substantially in parallel with the bed, the sewing machine comprising an indication device including a display arranged on the machine body, a means for moving the display relative to the machine body, the display being movable into a retreat area defined at least by a top side, a bottom side and a lateral end side of the machine body.
Further it is preferable that the display may be moved to a position for providing a maximum stitch working space where the display will not extend into the space between the upper end side of the bed and lower end side of the arm.
With the structure as defined by the invention, a large sized display may be moved into the retreat area of machine frame and held there compactly. Further the display may be moved into a position where the display is actually used, the space between the upper end side of the bed and lower end side of the arm may be fully used for stitch working operations without being interfered by the display.
Thus according to the invention, a sewing machine having an indication device including a large sized display may be realized.
The invention will be described in reference to the attached drawings.
In
In view of the front side F of the machine body, that is, in the front side view of the machine body, a machine frame may be defined as enclosed by the outlines depicted with the top side 71, lateral end side 73, bottom side 79 of the machine body B, and with the lateral sides of the arm 95 and the lateral sides of the bed 90 in
An operating part 7 is provided in the front side F of the machine body B, more precisely, in the front side 77 of the arm 95. The space 70 as defied by the lower end side 72 of the arm 95, the upper end side 91 of the bed 90 and the inner lateral end side 9 of the standard 96 is used as a stitch working place.
The display 98 of the indication device is provided on the front side F of the machine body B. The display 98 is located as normally occupying the parts of the arm 95 and of the standard 96. The display 98 is formed substantially in square and has a size that the lower part including the lower end side 59 partly protrudes into the space 70, that is, into the stitch working place when the display 98 is located as shown in
The display 98 may be slidingly moved up and down on the front side F of the machine body B. The display 98 may be moved from the position of
In
Therefore, when the display 98 is located at the lower most position as shown in
In the retreat position, the display 98 is allowed to partly protrude into the stitch working space 70 because the sewing machine is left unused.
When the display 98 is in the upper position as shown in
Further, when the display 98 is moved up as shown in
In
The display 98 may be moved up and down by operation of a switch 75 and may be stopped at an optional position that is most suitable for the level of the machine operator's eyes.
The display 98 has one end side at the rear side thereof supported so as to be moved up and down as guided by a guide rail 50 and has the opposite end side connected to a feed screw 53 which is connected to a drive motor 54 through a transmission mechanism 55 so as to be rotated with rotation of the drive motor 54.
A microswitch 51 is provided at the upper end of the guide rail 50 and another microswitch 52 is provided at the lower end of the guide rail 50. The upper microswitch 51 is used to regulate the upper position of the display 98 and the lower microswitch 52 is used to regulate the lower position of the display 98 in
Now the operation of the invention will be described in reference to
When the machine operator presses the switch 75 to give a signal for demanding the display 98 to move up (step S1), it is checked if a signal for detecting the microswitch 51 is present or not (step S2). Subsequently it is checked if the pressing operation of switch 75 is stopped or not (step S3) and then the drive motor 54 is driven (step S2) to move up the display 98. In case the microswitch detecting signal is present or the stop of pressing operation of switch 75 is detected, the drive motor 54 is stopped (step S9) to stop the movement of display 98 at the position.
Subsequently when the machine operator presses the switch 75 to give a signal for demanding the display 98 to move down (step S5), it is checked if a signal for detecting the microswitch 52 is present or not (step S6). Subsequently it is checked if the pressing operation of switch 75 is stopped or not (step S7) and then the drive motor 54 is driven (step S8) to move down the display 98. In case the microswitch detecting signal is present or the stop of pressing operation of switch 75 is detected, the drive motor 54 is stopped (step S9) to stop the movement of display 98 at the position.
Although it is described that the display 98 is moved up and down in this embodiment, it is possible that the display 98 my be moved, for example, aslant or in the right and left direction.
Further the display 98 may be simply superposed on the front side 71 or on the lateral end side 73 of the standard 96.
In such structure, the outer surface of the display 98 forms the outer surface of the machine body B defining the outline of the machine frame when the display 98 is located at the lower most position, that is, at the retreat position.
Number | Date | Country | Kind |
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2005-173352 | Jun 2005 | JP | national |