Sewing machine

1. A sewing machine comprising:

an embroidery frame that moves horizontally while stretching and supporting a sewing object;

a needle bar that supports a needle that penetrates a needle thread in the sewing object, and that reciprocally moves relative to the sewing object stretched by the embroidery frame;

a control unit that controls the horizontal movement of the embroidery frame and the reciprocal motion of the needle bar; and

an input unit that accepts selection of a motif and input of a line which the motifs are arranged on in sequence,

wherein the control unit horizontally moves the embroidery frame in way that the motifs are arranged in sequence on the sewing object along the line, and

wherein the control unit horizontally moves the embroidery frame and reciprocally moves the needle bar so as to arrange the motifs in sequence on the sewing object along a shape of the line extended toward an additional point, the input unit accepts designation of the additional point while arranging the motifs on the sewing object.

2. The sewing machine according to claim 1 , wherein the motif is a straight line, zig-zag, or decorative pattern.

3. The sewing machine according to claim 1 , wherein:

the input unit further comprises a touch panel screen, and accepts designation of points on the touch panel screen; and

the control unit horizontally moves the embroidery frame and reciprocally moves the needle bar so as to arrange the motifs in sequence on the sewing object along the shape of the line that connects the designated points.

4. The sewing machine according to claim 3 , wherein the control unit restarts the horizontal movement of the embroidery frame and the reciprocal motion of the needle bar in a way that the motifs are arranged in sequence on the sewing object along the shape of the line extended toward an additional point, the input unit accepts designation of the additional point after arrangement of motifs along the shape of the line is completed.

5. The sewing machine according to claim 3 , wherein the control unit comprises:

a creating unit that creates embroidery data which is the motifs arranged in sequence along the shape of the line; and

an actuator that horizontally moves the embroidery frame in accordance with the embroidery data.

6. The sewing machine accordingly to claim 3 , wherein:

the control unit comprises:

a creating unit that creates embroidery data file containing embroidery data which is the motifs arranged in sequence along the shape of the line; and

an actuator that horizontally moves the embroidery frame in accordance with the embroidery data contained in the embroidery data file, and

the creating unit creates, when the input unit accepts designation of an additional point, the embroidery data that is the motifs arranged in sequence in a segment extended up to the additional point, and adds the created embroidery data to the embroidery data file.

7. The sewing machine according to claim 3 , wherein the control unit comprises:

a memory unit that stores embroidery data file containing embroidery data of a pattern;

a creating unit that creates the embroidery data that is the motifs arranged in sequence along the shape of the line, and that adds the created embroidery data to the embroidery data file;

a display unit that displays the rendered pattern indicated by the embroidery data file; and

an actuator that horizontally moves the embroidery frame in accordance with the embroidery data contained in the embroidery data file.

8. The sewing machine according to claim 1 , wherein:

the input unit comprises a jog key that horizontally moves the embroidery frame in response to a user operation, and further accepts designation of points on the sewing object indicated by the needle; and

the control unit horizontally moves the embroidery frame and reciprocally moves the needle bar so as to arrange the motifs in sequence on the sewing object along the shape of the line that connects the indicated points.