BACKGROUND OF THE INVENTION
1. Field of the invention
[0001] The present invention relates to an apparatus for driving an embroidery frame of
a sewing machine, and more particularly, to a driving apparatus of an embroidery frame
of a sewing machine in which a driving unit of a sewing frame (embroidery frame) reciprocates
on an X-axis fixed frame and/or a Y-axis fixed frame which is installed to a beam-body
of the sewing machine so that an uniform driving force can be transmitted to overall
the embroidery frame, inferior embroidery caused by vibration of the embroidery frame
during the transfer can be prevented, a size of a table of the sewing machine is reduced,
and a high-speed operation is enabled.
2. Description of the Prior Art
[0002] As generally known in the art, there are an embroidery machine and a sewing machine
as sewing machines. The embroidery machine represents a machine in which a sewing
needle bar moves up and down and an embroidery frame, to which a workpiece fabric
is fixed, travels in the X-axis direction and the Y-axis direction to embroider as
a user wishes. The sewing machine is usually used in home.
[0003] There is a difference between the sewing machine and the embroidery machine in view
that the sewing machine moves the workpiece fabric by a saw tooth-shaped mover and
sews the workpiece fabric and the embroidery machine transfers the embroidery frame
to hold the workpiece fabric in the X-axis direction and the Y-axis direction to embroider
the workpiece fabric.
[0004] In the embroidery machine, since the embroidery frame to hold the workpiece fabric
moves in the X-axis direction and the Y-axis direction to embroider the workpiece
fabric, the precise movement and a constant speed of the embroidery frame are closely
connected to the quality of the embroidery.
[0005] Accordingly, a servo motor or an induction motor capable of controlling speed is
used as a driving unit to move the needle bar of the embroidery machine up and down,
a stepping motor which has an excellent positioning function and is easy to control
is usually used as a driving unit to move the embroidery machine in the X-axis direction
and the Y-axis direction.
[0006] There are several types of the embroidery machine such as a single head type automatic
embroidery machine having a single head, a multi-head type automatic embroidery machine
having two or more heads, and a special embroidery machine such as a computer quilting
machine.
[0007] Hereinafter, configuration and operation of the conventional embroidery machine will
be described with reference to the accompanying drawings.
[0008] FIG. 1 is an external appearance of a conventional multi-head type automatic embroidery
machine, and FIG. 2 is a view illustrating a head and a shuttle driving unit of the
embroidery machine in FIG. 1.
[0009] The multi-head type automatic embroidery machine, as illustrated in FIGS. 1 and 2,
includes a beam-body 1 to support the embroidery machine, a table 2 installed on the
beam-body 1, an embroidery frame (or an embroidery table) 3 installed on the table
2 to fix cloth to be embroidered, a plurality of heads 4 installed on an upper shaft
11 upper than the embroidery frame 3 to perform the embroidery, a shuttle (or a hook)
15 installed on a lower shaft 12 lower than the table 2 to face the heads 4 and to
feed a lower thread, a main controller box 5 installed at the lower side of the table
2, and a manipulation panel 6 installed at a side of the table 2. A main shaft driving
motor 13 is installed at a lower side of the table 2. A first belt 14a connects a
rotation shaft of the main shaft driving motor 13 and the lower shaft 12, and the
lower shaft 12 and the upper shaft 11 is connected to each other by a second belt
14b.
[0010] Thus, due to the rotation of the main shaft driving motor 13, the lower shaft 12
and the upper shaft 11 rotate. Due to the rotation of the lower shaft 12, the shuttle
15 is driven to feed the lower thread for the embroidery. Due to the rotation of the
upper shaft 11, the needle bar 4a installed in the head 4 is driven to embroider the
cloth.
[0011] In order to increase the productivity, the embroidery machine usually includes a
plurality of head 4 (for example, 10 to 24 heads). The plural heads 4 are connected
to each other by a signal rotation shaft (upper shaft), each of the heads 4 has a
plurality of needles (for example, 6 to 15 needles), and different colored various
threads are connected to the respective needles. Thus, the heads 4 embroider the cloth
using various colored threads according to a desired embroidery pattern.
[0012] Meanwhile, there are proposed various type movement mechanisms to control and move
the embroidery frame positioned on the horizontal sewing table in the X-direction
and in the Y-direction (right-to-left and front-to-rear directions) on a planar coordinate
based on various embroidery data stored in a computer.
[0013] FIG. 3 is a plan view illustrating a driving apparatus of an embroidery frame of
the conventional automatic embroidery machine having two embroidery heads.
[0014] The conventional driving apparatus of an embroidery frame of a sewing machine, as
illustrated in FIG. 3, includes a table 6 to which an object to be embroidered is
placed, an embroidery frame 26 installed at the upper side of the table 6 to fix the
object to be embroidered, and an elongated frame driving unit 10 to hold the embroidery
frame 26. In this case, the embroidery frame 26 includes a pair of elongated horizontal
frames and a pair of a vertical frames, installed at the upper side of the table 6,
to support the object to be embroidered, and has a rectangular shape. In the lower
side of the table 6, a movement mechanism 59 is installed to move the embroidery frame
26 on the sewing table 6 in the front-to-rear direction (Y-direction) and in the right-to-left
direction (X-direction).
[0015] In the lower side of the sewing table 6, a Y-directional movement mechanism 11 is
installed to move the embroidery frame 26 in the Y-direction. The Y-directional movement
mechanism 11 includes pulleys 67 and 68 supported to rotate at the front side and
the rear side thereof, two elongated belts 69 and 70 extended between the pulleys
67 and 68, and a Y-directional driving motor 14 connected to the right and left pulleys
68, positioned at the rear side, by a connecting shaft 13.
[0016] The two right and left belts 68 and 70 and the frame driving unit 10 are connected
to each other by slits 12 formed in the Y-direction of the sewing table 6.
[0017] Thus, the forward and backward rotation of the Y-directional driving motor 14 is
controller such that the frame driving unit 10 and the embroidery frame 26 held by
the frame driving unit 10 are moved in the Y-direction.
[0018] Moreover, in the lower sides of the respective sewing heads 5, cylindrical supports
7 are installed to correspond to the heads 5.
[0019] In the frame driving unit 10, an X-directional movement mechanism 21 is installed
to move the embroidery frame 26 in the X-direction. The X-directional movement mechanism
21 includes pulleys 71 and 72 rotatably supported by the right and left ends thereof,
an elongated belt 73 extended between the pulleys 71 and 72, and an X-directional
driving motor directly connected to the right pulley 72.
[0020] Connecting bodies 75 are connected to the belt 73 by a predetermined distance, the
embroidery frame 26 is horizontally attached to the connecting bodies 75 to protrude
toward the front side of the frame driving unit 10.
[0021] Thus, the X-directional driving motor 74 rotates forward and backward so that the
embroidery frame 26 reciprocates in the X-direction.
[0022] However, in the conventional driving apparatus of an embroidery frame of a sewing
machine, since the embroidery frame is moved by the elongated timing belt, slip occurs
or the timing belt is loosened during the power transmission of the timing belt so
that the driving force is not precisely transmitted.
[0023] Moreover, when the movement range of the embroidery frame is increased, the length
of the timing belt is also increased in the Y-direction. If the length of the timing
belt is elongated in the Y-direction, vibration may be easily generated as much as
the increased length, there is generated a backlash so that it is difficult to transmit
the driving force and there is a limit for a high-speed operation.
[0024] Furthermore, due to the Y-directional driving motor positioned at the rear side of
the Y-directional movement mechanism, the overall width of the sewing machine is increased.
SUMMARY OF THE INVENTION
[0025] Accordingly, the present invention has been made to solve the above-mentioned problems
occurring in the prior art, and it is an aspect of the present invention to provide
a driving apparatus of an embroidery frame of a sewing machine in which an embroidery
frame driving unit reciprocates on an X-axis fixed frame and/or a Y-axis fixed frame
which is installed in a beam-body of the sewing machine so that a uniform movement
driving force can be transmitted to overall the embroidery frame, the embroidery can
be precisely performed according to embroidery data at a high-speed to obtain high-quality
embroidered patterns, and the Y-directional width of the sewing machine is decreased
to reduce overall width of the sewing machine.
[0026] It is another aspect of the present invention to provide a driving apparatus of an
embroidery frame of a sewing machine having a rack and pinion type power transmission
including gear teeth formed in a fixed frame installed in a beam-body of the sewing
machine and a timing belt provided in an embroidery frame driving unit and having
gear teeth engaged with the gear teeth of the fixed frame to precisely transmit a
driving force.
[0027] In accordance with an aspect of the present invention, there is provided a driving
apparatus of an embroidery frame of a sewing machine including: at least one X-directional
movement mechanism to move the embroidery frame to support an object to be embroidered
in right-to-left direction (X-direction); and at least one Y-directional movement
mechanism to move the embroidery frame to support an object to be embroidered in front-to-rear
direction (Y-direction); any one of the X-directional movement mechanism and the Y-directional
movement mechanism including: a fixed frame installed to a beam-body of the sewing
machine and having gear teeth; and an embroidery frame driving unit installed on the
fixed frame to reciprocate and engaged with the gear teeth to reciprocate the embroidery
frame.
[0028] Moreover, a driving apparatus of an embroidery frame of a sewing machine including:
an embroidery frame driving unit having the embroidery frame to fix and hold an object
to be embroidered and placed on a table of the sewing machine; and at least one Y-directional
movement mechanism to move the frame driving unit in the front-to-rear direction;
the Y-directional movement mechanism including: a fixed frame installed in the upper
side of the frame driving unit in the Y-direction and having gear teeth; and an embroidery
frame driving unit installed on the fixed frame to reciprocate and engaged with the
gear teeth to reciprocate the frame driving unit in the Y-direction.
[0029] The driving apparatus further includes an X-directional movement mechanism installed
in the frame driving unit to reciprocate the embroidery frame in the X-direction,
wherein the X-directional movement mechanism includes: a movable frame installed on
the frame driving unit to reciprocate in the X-direction (right-to-left direction)
and having gear teeth; and an embroidery frame driving unit engaged with the gear
teeth of the movable frame to reciprocate the movable frame in the X-direction.
[0030] The movable frame includes a connecting body to freely detach the embroidery frame.
The embroidery frame driving unit includes: an engaging member engaged with the gear
teeth formed in the fixed frame; a plurality of rotation members to rotatably support
the engaging member; and a driving body to provide a rotational force to the engaging
member.
[0031] The engaging member includes a belt-type member.
[0032] The belt-type member includes gear teeth engaged with the gear teeth formed in the
fixed frame.
[0033] The driving body includes gear teeth engaged with the engaging member.
[0034] The embroidery frame driving unit includes: an engaging member engaged with the gear
teeth formed in the upper side of the fixed frame; and a driving body to provide a
rotational force to the engaging member.
[0035] The engaging member includes a pinion.
[0036] Power sources are individually installed in the embroidery frame driving units.
[0037] The embroidery frame driving unit is driven by a single power source.
[0038] The beam-body includes a table.
[0039] Thus, the embroidery frame driving unit is installed in the beam-body of the sewing
machine to reciprocate on the X-axis fixed frame and/or the Y-axis fixed frame so
that a uniform movement driving force can be transmitted to overall embroidery frame,
the deterioration of the quality of the embroidery product due to the vibration of
the embroidery frame during the movement can be prevented, and the size of the table
of the sewing machine can be reduced.
BRIEF DESCRIPTION OF THE DRAWINGS
[0040] The above and other objects, features and advantages of the present invention will
be more apparent from the following detailed description taken in conjunction with
the accompanying drawings, in which:
FIG. 1 is a view illustrating an overall external appearance of a conventional multi-head
type automatic embroidery machine;
FIG. 2 is a view illustrating a head and a shuttle driving unit of the automatic embroidery
machine in FIG. 1;
FIG. 3 is a plan view illustrating a conventional driving apparatus of an embroidery
frame of a sewing machine;
FIGS. 4 and 5 are front and rear perspective views illustrating a sewing machine having
a driving apparatus of an embroidery frame of a sewing machine according to an embodiment
of the present invention;
FIGS. 6 and 7 are a plan view and a perspective view illustrating the driving apparatus
of an embroidery frame of a sewing machine according to the embodiment of the present
invention;
FIG. 8 is a side view illustrating the driving apparatus of an embroidery frame of
a sewing machine according to the present invention;
FIGS. 9 and 10 are detailed views illustrating an embroidery frame driving unit of
a sewing machine according to the embodiment of the present invention; and
FIG. 11 is a view illustrating an example of a movement mechanism employed in the
present invention such as a Y-directional movement mechanism.
DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENTS
[0041] Hereinafter, an exemplary embodiment of the present invention will be described with
reference to the accompanying drawings.
Embodiment
[0042] FIGS. 4 and 5 are front and rear perspective views illustrating a sewing machine
having a driving apparatus of an embroidery frame of a sewing machine according to
an embodiment of the present invention, FIGS. 6 and 7 are a plan view and a perspective
view illustrating the driving apparatus of an embroidery frame of a sewing machine
according to the embodiment of the present invention, FIG. 8 is a side view illustrating
the driving apparatus of an embroidery frame of a sewing machine according to the
present invention, FIGS. 9 and 10 are detailed views illustrating an embroidery frame
driving unit of a sewing machine according to the embodiment of the present invention,
and FIG. 11 is a view illustrating an example of a movement mechanism employed in
the present invention such as a Y-directional movement mechanism.
[0043] The driving apparatus of an embroidery frame according to the embodiment of the present
invention, as illustrated, includes at least one X-directional movement mechanism
120 to move an embroidery frame 111 to support an object to be embroidered in the
right-to-left direction (X-direction), and at least one Y-direction movement mechanism
220 to move the embroidery frame 111 in the front-to-rear direction (Y-direction).
Here, one of the X-directional movement mechanism 120 and the Y-directional movement
mechanism 220 includes a fixed frame 140 installed to a beam-body of the sewing machine
and having gear teeth, and embroidery frame driving units 150 installed on the fixed
frame 140 to reciprocate and engaged with the gear teeth to reciprocate the embroidery
frame 111.
[0044] In more detail, the driving apparatus of an embroidery frame of a sewing machine
100 includes a frame driving unit 108 having the embroidery frame 111 to fix and hold
the object to be embroidered and placed on a table 102 of the sewing machine 100,
and at least one Y-directional movement mechanism 220 to move the frame driving unit
108 in the forward and backward direction of the sewing machine 100. The Y-directional
movement mechanism 220 includes a fixed frame 140 installed in the upper side of the
frame driving unit 108 in the Y-direction and having gear teeth, and an embroidery
frame driving unit 150 installed on the fixed frame 140 to reciprocate and engaged
with the gear teeth to reciprocate the frame driving unit 108 forward and backward
in the Y-direction.
[0045] Moreover, the driving apparatus of an embroidery frame of a sewing machine further
includes an X-directional movement mechanism 120 installed in the frame driving unit
108 to reciprocate the embroidery frame 11 in the X-direction. In this case, the X-directional
movement mechanism 120 includes a movable frame 112 installed on the frame driving
unit 108 in the X-direction (right-to-left direction) and having gear teeth, and an
embroidery frame driving unit 150 engaged with the gear teeth of the movable frame
112 to reciprocate the movable frame 112 in the X-direction.
[0046] On the other hand, the embroidery frame driving unit 150, as illustrated in FIG.
11, includes an engaging member 212 engaged with the gear teeth formed in the fixed
frame 140, a plurality of rotation members 213 to 215 to rotatably support the engaging
member 212, and a driving body 211 to provide a rotational force to the engaging member
212.
[0047] In this case, the engaging member 212 is implemented by a belt-type member having
gear teeth 212a engaged with the gear teeth 141 formed in the fixed frame 140.
[0048] Moreover, the plurality of rotation members 213 to 215 supports the engaging member
212, the driving body 211 is positioned between rotation members among the plural
rotation members 213 to 215 installed at the positions higher than rotation shafts
of the rotation members positioned at the lower side and at the lower side, and the
engaging member 212 has a reversed U-shape formed by the driving body 211 installed
between the two rotation members.
[0049] Moreover, the plurality of rotation members 213 to 215 is implemented by idlers.
[0050] In the embodiment of the present invention, although the embroidery frame driving
unit 150 of the Y-directional movement mechanism 220 has been described, the embroidery
frame driving unit 150 of the X-directional movement mechanism 120 can be implemented
as the configuration of the embroidery frame driving unit 150 of the Y-directional
movement mechanism 220.
[0051] The embroidery frame 111 to fix and hold the object to be embroidered can be freely
attached to and detached from the movable frame 112 by the connecting body 113.
[0052] A Y-axis driving motor 230 to driving the embroidery frame driving unit 150 is preferably
provided in the embroidery frame driving unit 150 of the Y-directional movement mechanism
220 positioned at the center, among a plurality of Y-directional movement mechanisms
220 so as to provide a uniform driving force.
[0053] In at least one embroidery frame driving unit 150 configured as described above,
a pulley (not shown), mounted to a connecting shaft 114 elongated in the X-direction
to drive driving bodies 211 of the respective embroidery frame driving units, is connected
to a driving shaft (not shown) of the Y-axis driving motor 230 by a timing belt (not
shown) to drive and move the respective embroidery frame driving units.
[0054] In some of the fixed frames 140 of the Y-directional movement mechanism 220, in order
to prevent vibration and shaking, one sides (front ends) thereof are fixed to upper
frames 104 by first brackets 116 and the opposite sides (rear ends) thereof are fixed
to a lower frame 110 by second brackets 117 (See FIG. 8). Moreover, the Y-directional
movement mechanism 220 is fixed as such a front end is fixed to a supporting shaft
to support the upper frame 104 and a rear end is fixed to a rear side of the lower
frame 110.
[0055] In the lower side of the embroidery frame driving unit 150, as illustrated in FIG.
8, a fixing member 118 to fix the frame driving unit 108 is provided such that the
fixing member 118 reciprocates together the embroidery frame driving unit 150 with
respect to the fixed frame 140 to move the frame driving unit 108 in the front-to-rear
direction (Y-direction) of the sewing machine.
[0056] In another embodiment of the present invention, the fixed frame 140 of the Y-directional
movement mechanism 220 may be installed in the lower side of the table 102, and the
embroidery frame driving unit 150 may reciprocate on the table 102 in the front-to-rear
direction (Y-direction) due to a slit formed in the table 102 in the Y-direction.
[0057] Moreover, although the X-directional movement mechanism 120 is installed in the frame
driving unit 108 such that the embroidery frame driving unit 150 moves the movable
frame 112 in the right-to-left direction (X-direction) to move the embroidery frame
111, it is possible that the fixed frame 140 is installed in the frame driving unit
108 and the embroidery frame driving unit 150 reciprocates thereon to move the embroidery
frame 11 in the right-to-left direction (X-direction).
[0058] On the other hand, power sources to provide the driving force to the movement mechanisms
of the embroidery frame described in the embodiments of the present invention may
be individually installed to the embroidery frame driving units, or a power source
may use a single common driving motor such that a single output shaft is connected
to plural driving boxes to drive the movable frame.
[0059] Here, the engaging member installed in the embroidery frame driving unit may be a
belt type power transmitting member such as a timing belt, a chain, or a driven gear
directly engaged with the driving body.
[0060] Moreover, the driving body installed in the embroidery frame driving unit and connected
to the power source includes all of devices and units to transmit the driving force
of the power source such as a timing pulley, a sprocket, a driving gear, a driving
pulley, and the like.
[0061] Furthermore, the above-described driving apparatus of an embroidery frame of a sewing
machine can be applied to every sewing machine to which the Y-directional movement
mechanism or the X-directional movement mechanism is applied.
[0062] On the other hand, as another example, the embroidery frame driving unit 150 may
include an engaging member engaged with the gear teeth formed in the upper side of
the fixed frame, and a driving body to provide the rotational force to the engaging
member. In this case, preferably, a pinion may be used as the engaging member.
[0063] As described above, according to the driving apparatus of an embroidery frame of
a sewing machine of the present invention, the embroidery frame driving unit is installed
in the beam-body of the sewing machine to reciprocate on the X-axis fixed frame and/or
the Y-axis fixed frame so that a uniform movement driving force can be transmitted
to overall embroidery frame, the embroidery is precisely performed according to embroidery
data at a high-speed to obtain a high-quality embroidery product, and the Y-direction
width of the sewing machine is reduced to decrease the overall width of the sewing
machine.
[0064] Moreover, the movement mechanisms to drive the embroidery frame are installed in
the upper side of the table of the sewing machine to transmit a uniform movement driving
force to the embroidery frame driving unit, and the deflection and deformation of
the embroidery frame driving unit are prevented to precisely drive the embroidery
frame at a high-speed to obtain high-quality embroidery patterns.
[0065] Furthermore, the embroidery frame driving unit of a sewing machine, having a rack
and pinion type power transmission to precisely transmit a driving force using a timing
belt with gear teeth, engaged with the gear teeth of the fixed frame having the gear
teeth and installed in the beam-body of the sewing machine, is provided, so that a
uniform movement driving force can be transmitted to the overall embroidery frame,
the embroidery is precisely performed according to the embroidery data at a high-speed
to obtain high-quality embroidery patterns, and the Y-directional width of the sewing
machine is reduced to decrease the overall width of the sewing machine.
[0066] Furthermore, the precision, the high-speed operation, and the durability of the embroidery
frame can be achieved, as well, it is possible to minimize the increase of the number
of components, costs, and driving noise, to prevent the deflection of the embroidery
frame, and to achieve the precise operation of the embroidery frame even when driving
a large sized embroidery frame.
[0067] Although an exemplary embodiment of the present invention has been described for
illustrative purposes, those skilled in the art will appreciate that various modifications,
additions and substitutions are possible, without departing from the scope and spirit
of the invention as disclosed in the accompanying claims.
1. A driving apparatus of an embroidery frame of a sewing machine, comprising:
at least one X-directional movement mechanism to move the embroidery frame to support
an object to be embroidered in right-to-left direction (X-direction); and
at least one Y-directional movement mechanism to move the embroidery frame to support
an object to be embroidered in front-to-rear direction (Y-direction);
any one of the X-directional movement mechanism and the Y-directional movement mechanism
comprising:
a fixed frame installed to a beam-body of the sewing machine and having gear teeth;
and
an embroidery frame driving unit installed on the fixed frame to reciprocate and engaged
with the gear teeth to reciprocate the embroidery frame.
2. A driving apparatus of an embroidery frame of a sewing machine, comprising:
an embroidery frame driving unit having the embroidery frame to fix and hold an object
to be embroidered and placed on a table of the sewing machine; and
at least one Y-directional movement mechanism to move the frame driving unit in the
front-to-rear direction,
wherein the Y-directional movement mechanism comprises:
a fixed frame installed in the upper side of the frame driving unit in the Y-direction
and having gear teeth; and
an embroidery frame driving unit installed on the fixed frame to reciprocate and engaged
with the gear teeth to reciprocate the frame driving unit in the Y-direction.
3. The driving apparatus of an embroidery frame of a sewing machine as claimed in claim
2, further comprising an X-directional movement mechanism installed in the frame driving
unit to reciprocate the embroidery frame in the X-direction, wherein the X-directional
movement mechanism comprises:
a movable frame installed on the frame driving unit to reciprocate in the X-direction
(right-to-left direction) and having gear teeth; and
an embroidery frame driving unit engaged with the gear teeth of the movable frame
to reciprocate the movable frame in the X-direction.
4. The driving apparatus of an embroidery frame of a sewing machine as claimed in claim
3, wherein the movable frame comprises a connecting body to freely detach the embroidery
frame.
5. The driving apparatus of an embroidery frame of a sewing machine as claimed in claims
1 or 2, wherein the embroidery frame driving unit comprises:
an engaging member engaged with the gear teeth formed in the fixed frame;
a plurality of rotation members to rotatably support the engaging member; and
a driving body to provide a rotational force to the engaging member.
6. The driving apparatus of an embroidery frame of a sewing machine as claimed in claim
5, wherein the engaging member comprises a belt-type member.
7. The driving apparatus of an embroidery frame of a sewing machine as claimed in claim
6, wherein the belt-type member comprises gear teeth engaged with the gear teeth formed
in the fixed frame.
8. The driving apparatus of an embroidery frame of a sewing machine as claimed in claim
5, wherein the driving body comprises gear teeth engaged with the engaging member.
9. The driving apparatus of an embroidery frame of a sewing machine as claimed in claims
1 or 2, wherein the embroidery frame driving unit comprises:
an engaging member engaged with the gear teeth formed in the upper side of the fixed
frame; and
a driving body to provide a rotational force to the engaging member.
10. The driving apparatus of an embroidery frame of a sewing machine as claimed in claim
9, wherein the engaging member comprises a pinion.
11. The driving apparatus of an embroidery frame of a sewing machine as claimed in claims
1 or 2, wherein power sources are individually installed in the embroidery frame driving
units.
12. The driving apparatus of an embroidery frame of a sewing machine as claimed in claims
1 or 2, wherein the embroidery frame driving unit is driven by a single power source.
13. The driving apparatus of an embroidery frame of a sewing machine as claimed in claims
1 or 2, wherein the beam-body comprises a table.