JPH0118757B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a sewing machine capable of forming a plurality of predetermined patterns, by dividing and switchingly displaying a large number of sewing pattern displays representing the patterns or sewing methods. The present invention relates to a pattern display device for a sewing machine that can effectively use the pattern display area of the sewing machine.

In a sewing machine that selectively forms a large number of predetermined patterns, a sewing pattern display group representing patterns such as decorative patterns, etc., and a sewing pattern display group representing how to sew practical patterns are alternatively displayed. It is desirable to do so. On the other hand, a display board on which the sewing pattern display group is drawn is placed on the front of the sewing machine, and a cover board with many small windows that can match the individual sewing pattern displays is superimposed on it. A device has been proposed that selectively changes the sewing pattern display that can be recognized through the small window by shifting the sewing pattern with respect to the display board. For example, there is a device described in Japanese Utility Model Application Publication No. 57-99678.

However, according to this pattern display method, all the sewing pattern displays are drawn on the display board placed on the front of the sewing machine, and one group of the sewing pattern displays is covered up. Therefore, it was not possible to effectively use the narrow pattern display area. In other words, since the area on the display board where many stitching patterns are drawn is the pattern display area allowed on the front of the sewing machine, in a certain display state, the part covered by the cover plate does not display any part of the pattern display area. It becomes an ineffective part that is not utilized. For example, when the cover plate is positioned at two positions and two groups of sewing pattern displays are alternatively displayed, one
The area used for sewing pattern display in each display state is 1/1/2 of the pattern display area allowed on the front of the sewing machine.
This results in a value of 2 or less. Such inconveniences are particularly noticeable in electronic (computer) sewing machines equipped with electronic memory that can form a large number of patterns, and in such cases, the number of displayed sewing patterns is limited or the size of the displayed sewing patterns is limited. becomes extremely small and difficult to see.

On the other hand, a first display body is fixed to the sewing machine frame so as to face the pattern display window on the front panel of the sewing machine, and has a first display body on which the sewing pattern display of the first pattern group is drawn, and a display body on which the sewing pattern display of the second pattern group is drawn. a second display body on which a pattern display is drawn; a support member that movably supports the second display body between the front panel and the first display body; a switching member connected to the support member for switching between a position overlapping one display body and a position not overlapping the first display body, and dividing the plurality of patterns by both display bodies. A sewing machine pattern display device that can switch the display according to the pattern can be considered. However, when selectively displaying a group of patterns using such a mechanism, unless the switching member is operated reliably, the second display board may stop midway through its movement range.

The present invention has been made against the background of the above circumstances, and its object is to effectively use the pattern display area allowed on the front surface of the sewing machine to display a large number of sewing patterns in an easy-to-see manner, and to To provide a pattern display device for a sewing machine in which a second display body does not stop in the middle of its movement range.

In order to achieve such an object, the gist of the present invention is to provide an apparatus for displaying a large number of patterns consisting of first and second pattern groups through a display window of a front panel provided in a sewing machine frame. a) a first display body fixed to the sewing machine frame so as to face the display window, and on which the sewing pattern display of the first pattern group is drawn; and (b) the sewing pattern of the second pattern group. a second display body on which a display is drawn; (c) a supporting member movably supporting the second display body between the front panel and the first display body; and (d) the second display body. (e) a switching member connected to the support member for switching the display body between a position where the display body overlaps the first display body and a position where the display body does not overlap the first display body; (f) a spring for elastically biasing the second display body toward the direction of movement of the second display body at a substantially intermediate position of the movement range of the display body, and (f) dividing the plurality of patterns by the two display bodies; The reason is that the display can be switched by changing the display.

In this way, the display area of the first display body covered by the second display body is switched by operating the switching member, so that the display area of the first display body and the second display body are switched.
A large number of sewing patterns drawn in an area larger than the display window including the display bodies are selectively displayed through the display window. Therefore, since the sewing pattern display area allowed by the display window is not partially covered by the cover plate, the allowed pattern display area can be used extremely effectively, and the area is smaller than the area of the display window. Since the stitching patterns drawn in a much larger area are selectively displayed, a large number of stitching patterns can be displayed in an extremely easy-to-see manner.

Further, the second display body is connected to the second display body by a spring.
Since the display body is biased in the direction of movement at approximately the middle position of its movement range, the switching member does not have to be operated to the end of its operation stroke.
The second display body is reliably moved in the direction of operation by the switching member to a position where it overlaps with the first display body or a position where it does not overlap with the first display body.
The display object never stops in the middle of its movement range.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below based on the drawings.

In FIG. 1, numeral 10 is the front sewing machine frame of the electronic sewing machine, and the pillar part, arm part,
and constitutes the front of the head. A front panel 12 is fitted to the upper front and upper surface of the front sewing machine frame 10, and a display window 14 is formed in the front panel 12 through a transparent plate 13 to switch and display a large number of sewing patterns. The area of this display window 14 approximately corresponds to the pattern display area allowed on the front surface of the sewing machine. At the bottom of the front panel 12, ten numeric keys 16 are arranged along the longitudinal direction, and at the right end of the front panel 12, a two-digit seven-segment digital display 18 and a pair of pattern selection push buttons 20, 22 are arranged. and,
An operating lever 26 as a switching member is provided on the upper surface of the front panel 12 and protrudes through a long hole 24. By operating this operating lever 26, a decorative sewing pattern display 40 representing a decorative pattern to be described later is displayed. When placed opposite the window 14, the numeric keypad 16
By displaying a desired number on the digital display 18, the decorative pattern corresponding to that number is selected and sewn. Further, when a practical sewing pattern display 32 representing a practical sewing pattern to be described later is placed in a position facing the display window 14 by operating the operating lever 26, the LEDs disposed corresponding to the practical sewing pattern display 32 are displayed in the pattern. By selectively turning on the selection pushbuttons 20 and 22, the practical sewing pattern indicated by the practical sewing pattern display 32 that is instructed to be lit is sewn.

Hereinafter, the display window 14 is controlled by the operation lever 26.
A pattern display device that switches and displays sewing patterns will be described in more detail below.

As shown in FIGS. 2 to 4, the front sewing machine frame 10 is formed with an inner wall 30 that is separated from the front panel 12 by a predetermined gap, and a first pattern is formed on the front surface of the inner wall 30. A fixed display board 34, which is a first display body, on which a number of practical sewing pattern displays 32 representing a group of practical sewing patterns are drawn is attached by screws 36. In addition, the fixed display board 34
The hole 38 formed for each practical sewing pattern display 32 is for transmitting the light from the LED.

Between the fixed display board 34 and the front panel 12, there is a decorative sewing pattern display 40 made of a film-like flexible elastic material and representing a decorative pattern forming the second pattern group.
A movable display board 4, which is a second display body, on which a large number of
2 moves to the position overlapped with the fixed display board 34 and the gap S between the upper surface of the inner wall 30 formed above the fixed display board 34 and the upper inner wall surface of the front panel 12, and overlaps the fixed display board 34. It is arranged so that it can slide between the two positions.

A right support lever 48 and a left support lever 50 are pivotally attached to the back surface of the inner wall 30 by screws 44 and 46. A pin 52 and a long hole 54 into which the pin 52 engages are provided at one end of the right support lever 48 and the left support lever 50, respectively.
The other ends of the right support lever 48 and the left support lever 50 can be raised and lowered simultaneously. At the other ends, locking devices 56 and 58 made of synthetic resin, respectively.
is attached, and its locking tools 56 and 58
U-shaped locking portions are engaged with locking holes 64 and 66 provided at both ends of the movable display plate 42 through arc-shaped long holes 60 and 62 formed in the inner wall 30, respectively. . That is, the movable display plate 42 is stretched between the other ends of the right support lever 48 and the left support lever 50, and is raised and lowered as the levers 48 and 50 rotate. The U-shaped locking portions of the locking tools 56 and 58 have elasticity, and the movable display plate 42 moves in parallel in the vertical direction under tension regardless of the arc motion of the locking tools 56 and 58. I'm starting to feel like I'm being forced to do that.

The operating lever 26 has an L-shape, and its bent portion is pivotally attached to the back surface of the inner wall 30 by a screw 68. An elongated hole 72 is formed at one end of the operating lever 26 to engage with an engaging pin 70 protruding from the right support lever 48, and a space is provided between the pin 70 and the screw 68. A spring 74 is attached that biases it in the direction of the movement. Therefore, when the engagement pin 70 moves upward with respect to the straight line passing through the screw 68 and the screw 44, the right support lever 48 comes into contact with the stopper 76 protruding from the inner wall 30 according to the biasing force of the spring 74. When the right support lever 48 is rotated to the inner wall 30 and the engagement pin 70 is moved downward from the straight line,
It is designed so that it can be rotated until it comes into contact with a stopper 78 provided in a protruding manner. That is, the right support lever 48, the left support lever 50, and the movable display board 42 supported by these are fixed at a position overlapping the fixed display board 34 at approximately the middle of its movement range due to the biasing force of the spring 74. It is biased toward one of two positions: a position that does not overlap the display board 34;
According to the operation of the operating lever 26, the above-mentioned two positions can be reliably positioned.

A limit switch 80 is attached to the back surface of the inner wall 30 and is activated by the right support lever 48 when the right support lever 48 is rotated downward. It is detected whether a pattern display group is displayed, and the sewing pattern on the electronic sewing machine is selected. Furthermore, synthetic resin rings are fitted around the outer peripheries of the stoppers 76 and 78, so that when the right support lever 48 comes into contact with the stoppers 76 or 78, the impact is alleviated.

The operation of this embodiment will be explained below.

When the operating lever 26 protruding from the front panel 12 is operated to the left in FIG. The left support lever 50, which engages with the lever 52, is rotated downward. Therefore, the movable display plate 42 stretched between the locking tools 56 and 58 of the right support lever 48 and the left support lever 50 moves downward in parallel,
The movable display board 42 is positioned between the front panel 12 and the fixed display board 34, so that the movable display board 42 is superimposed on the entire front surface of the fixed display board 34. As a result, the pattern group displayed through the display window 14 is
This is a decorative pattern group represented by a decorative sewing pattern display 40 drawn on 2. FIGS. 1, 3 and 4 show this state.

Next, when the operation lever 26 is operated to the right in FIG. 1, the right support lever 48 that engages with the operation lever 26 is rotated until it comes into contact with the stopper 76, and the left support lever 50 is also rotated in the same manner. be rotated. For this reason, those levers 48, 5
The movable display plate 42 stretched between the locking devices 56 and 58 of 0 is moved upward and guided to the inner wall surface of the front panel 12, so that the movable display plate 42 is formed between the inner wall 30 and the front panel 12. While deforming along the gap between the front panel 12 and the top surface of the inner wall 30, the front panel 12 is moved to the gap S formed between the upper inner wall surface of the front panel 12 and the upper surface of the inner wall 30. As a result, the movable display board 42 that had been superimposed on the front of the fixed display board 34 was removed.
Practical sewing pattern display 32 drawn on the fixed display board 34
will be displayed through the display window 14. The imaginary lines (two-dot chain line) in FIG. 4 indicate the states of the operating lever 26, the right support lever 48, and the left support lever 50 in this state.

As described above, according to this embodiment, a cover plate having a large number of small windows for selectively displaying sewing patterns is not used within the display window 14, which is the permitted pattern display area on the front surface of the sewing machine. Therefore, in one display state, the ineffective portion covered by the cover plate is completely eliminated, and the allowable display area can be used effectively. Furthermore, the display area of the fixed display board 34 and the movable display board 4 are larger than the area of the display window 14.
A large number of sewing pattern displays are drawn in the area obtained by adding the display area of 2, and all of these sewing pattern displays are switched and displayed in the entire display window 14 according to the switching operation of the operating lever 26. This has the advantage that the sewing pattern can be displayed very clearly.

Further, according to this embodiment, the movable display plate 42 made of a film-like flexible elastic body is guided to the inner wall surface of the front panel 12 in the gap S between the upper surface of the inner wall 30 and the upper inner wall surface of the front panel 12. Since the sewing machine is configured so that it can be retracted, there is an advantage that there is no need to provide a retraction space corresponding to the area of the movable display plate 42 on the front surface of the sewing machine.

Further, according to the present embodiment, the movable display plate 42 is biased by the spring 74 in the direction of movement at approximately the middle position of the movable range of the movable display plate 42, so that the operating lever 26 is not pressed. The movable display plate 4 can be
2 is a position that overlaps the fixed display board 34 when facing in the direction of operation by the operating lever 26 or the fixed display board 34
The movable display board 42 is reliably moved to a position where it does not overlap with the display board 42, and the movable display board 42 does not stop in the middle of its movement range.

Although the embodiment of the present invention has been described above based on the drawings, the present invention can also be applied to other aspects.

For example, in the embodiment described above, the operating lever 26
is configured to be operated by an operator's hand, but it may also be operated electrically by an actuator such as a solenoid or cylinder.

Further, the pattern display device configured as described above may be disposed not only on the arm portion of the sewing machine but also on the front surface of the pillar portion of the sewing machine.
may be configured so that it can be moved not only in the vertical direction but also in two positions in the horizontal direction.

The above-mentioned embodiment is merely one embodiment of the present invention, and various modifications may be made to the present invention without departing from the spirit thereof.

[Brief explanation of drawings]

FIG. 1 is a front view showing a part of a sewing machine including an embodiment of the present invention. FIG. 2 is an exploded view illustrating the configuration of a pattern display device provided in the sewing machine of FIG. 1. 3 and 4 show the apparatus shown in FIG. 2 assembled into a sewing machine, with FIG. 3 being a partially omitted side view and FIG. 4 being a rear view. 10: Front sewing machine frame (sewing machine frame), 1
2: Front panel, 14: Display window, 26: Operation lever (switching member), 32: Practical sewing pattern display, 34:
Fixed display board (first display body), 40: Decorative sewing pattern display, 42: Movable display board (second display body), 4
8: Right support lever, (support member), 50: Left support lever, (support member), 56, 58: Locking tool, (support member).

Claims (1)

[Scope of Claims] 1. In a device for displaying a large number of patterns consisting of first and second pattern groups through a display window of a front panel provided in a sewing machine frame, the sewing machine frame is arranged so as to face the display window. a first display body on which a sewing pattern display of the first pattern group is drawn; and a second display body on which a sewing pattern display of the second pattern group is drawn.
a support member that movably supports the second display between the front panel and the first display, and the second display is stacked on the first display. a switching member connected to the support member for switching between the position and a position not overlapping the first display body; A pattern display device for a sewing machine, comprising: a spring for elastically biasing a display body toward the direction of movement thereof, and capable of dividing and switchingly displaying the plurality of patterns using both the display bodies.