JP2004337575A - Device and method of mounting embroidery frame - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively prevent the deviation of embroidery patterns by preventing embroidery frames from deformed inward by a tensile force of a fabric to be embroidered. <P>SOLUTION: This mounting device of the embroidery frame detachably mounts one or more rectangular embroidery frames relative to a rectangular base frame and is provided with, at least, a single regulation means which engages one side of the embroidery frame to one side of the base frame contacting therewith or engages adjoining sides of adjoining embroidery frames to each other for preventing the inward deformation of the embroidery frame. This constitution can fix one side of the embroidery frame to one side of the base frame contacting therewith or fix the relative position of the adjoining sides of the adjoining embroidery frames. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an embroidery frame for setting an embroidery object on a base frame in an embroidery machine, and more particularly to an improvement in a mechanism for mounting the embroidery frame.

Japanese Utility Model Application Laid-Open No. 4-106392 In the base frame (raw material frame), a so-called raw material is directly stretched, and a plurality of embroidery frames (one in the case of a single-head sewing machine) corresponding to a plurality of sewing heads respectively. One). This embroidery frame is prepared in various sizes and shapes, and is selected and used in accordance with the embroidery object (embroidery cloth). By the way, large pattern embroidery has become popular in recent years. Therefore, it has become necessary to set a large embroidered cloth having a large embroidery area in an embroidery frame. As a form of the embroidery frame responding to such a demand, a so-called square frame formed in a rectangular shape has appeared. In such an embroidery frame (square frame), two sides in the Y direction of the four sides are arranged substantially along the inside of the base frame so as to make full use of the embroidery range of the base frame, and are adjacent to each other. The corresponding two sides of the embroidery frames that are set up are also large so as to be disposed substantially close to each other. Further, as a structure for mounting the embroidery frame on the base frame, receiving parts are provided on the frame pieces (sides) on the back side and the front side in the Y direction of the base frame, respectively. A connector is provided for engaging the receiver. The engagement relationship between the receiving tool provided on the base frame side and the connecting tool provided on the embroidery frame side includes a type completely positioned on both the Y-direction back side and the Y-direction front side, and a Y-direction front side. On the side, there is a type in which there is no positioning regulating member (not completely positioned), and Patent Document 1 discloses the latter type of device.

FIGS. 11 and 12 show an example of the device disclosed in Patent Document 1. FIG. In FIGS. 11 and 12, reference numeral 1 denotes a base frame driven in the X / Y directions substantially parallel to the table surface of the embroidery sewing machine. The embroidery cloth is held on the base frame 1 in a developed state. A plurality of embroidery frames 2 are mounted. A ridge 3 is provided on the upper surface of the inner peripheral edge of the embroidery frame 2. A well-known holding clip (not shown) is removably fitted to the ridge 3 from above, and is mounted on the ridge 3. The placed embroidered cloth can be sandwiched and held.
The embroidery frame 2 is removably mounted on the base frame 1 via mounting means. In the example shown in the figure, the mounting means is provided on a first portion provided on a rear portion (a back side in the Y direction). It comprises a connecting mechanism 4 and two second connecting mechanisms 5 provided at the front part (front side in the Y direction). The first connecting mechanism 4 includes a first receiving member 6 provided on one side of the base frame 1 and a first connecting member 7 provided on a rear side of the embroidery frame 2. The first receiving member 6 is provided with a groove 6a that engages with the first connecting member 7 to regulate the relative movement of the first connecting member 7, and has a magnet 8 and two magnetic plates 9 embedded therein. I have. A metal suction plate 10 is attached to the tip of the first connection member 7. If the first connection member 7 is engaged with the groove 6 a of the first receiving member 6, the suction plate 10 is suctioned by magnetic force. The first receiving member 6 and the first connecting member 7 are connected. The second connecting mechanism 5 includes a second receiving member 11 provided on the base frame 1 and a second connecting member 12 provided on a front side of the embroidery frame 2. In the second receiving member 11, a groove 11a is provided on the upper surface, a magnet 13 and two magnetic plates 14 are embedded, and one surface of the two magnetic plates 14 is a part of the bottom surface of the groove 11a. Is formed. The second connection member 12 is integrally formed with a suction portion 12a that engages with the groove 11a of the second receiving member 11, and a grip portion 12b that rises from the suction portion 12a. When the attraction portion 12a of the second connection member 12 is engaged with the groove 11a of the second receiving member 11, the attraction portion 12a is attracted by magnetic force and the second receiving member 11 and the second connection member 12 are connected. When removing the embroidery frame 2 from the base frame 1, the embroidery frame 2 is pulled upward from the base frame 1 while holding the grip portion 12 b of the second connection member 12. Thereby, the connection between the second connecting member 12 and the second receiving member 11 is released, and subsequently, the connection between the first connecting member 7 and the first receiving member 6 is released, and the embroidery frame 2 is moved from the base frame 1. It could be easily removed.

When holding the embroidered cloth in the rectangular embroidery frame as described above, the embroidered cloth is held in a state of being tightly attached to the embroidery frame. For this reason, when the embroidery frame is large (each side of the embroidery frame is long), each side of the embroidery frame is pulled by the embroidered cloth and faces inward as shown by the imaginary line 2 'in FIG. It is deformed (bent). Since the tension of the embroidered cloth on the embroidery frame increases as the embroidery progresses, the deformation of the embroidery frame increases with the progress of the embroidery, which may cause a pattern shift. was there.
Such deformation of the embroidery frame largely appears on the left and right sides without the first and second connecting mechanisms 4 and 5. The front side (front side in the Y direction) provided with the second connection mechanism 5 is also attracted by the magnetic force of the second connection mechanism 5, but has no positioning member in the Y direction and relatively moves in the Y direction. Since the cloth is in a possible state, the cloth to be sewn is deformed when the tension is increased. The side on the rear side provided with the first connection mechanism 4 does not relatively move until the magnetic force of the first connection mechanism loses and comes off, so that there is almost no deformation on the side.

  The present invention has been made in view of the above points, and an object of the present invention is to provide an embroidery frame mounting apparatus and method capable of effectively preventing embroidery pattern misalignment by preventing deformation of the embroidery frame. And

  An embroidery frame mounting device according to the present invention is the embroidery frame mounting device for detachably mounting one or a plurality of rectangular embroidery frames to a rectangular base frame via mounting means. Restriction means for engaging one side of the embroidery frame with one side of the base frame contacting the embroidery frame or engaging adjacent sides of an adjacent embroidery frame to prevent deformation toward the inside of the embroidery frame Characterized in that at least one is provided.

  Further, the method for mounting an embroidery frame according to the present invention is characterized in that the embroidery frame is temporarily fixed via the holding member to a holding device provided with a holding member corresponding to at least one side of the embroidery frame, The embroidery frame according to any one of claims 1 to 3, wherein a first step of spreading the embroidered cloth on the embroidery frame, and removing the embroidery frame on which the embroidered cloth is spread from the holding device. Mounting the embroidery sewing machine on the base frame via a frame mounting device.

According to the embroidery frame mounting device according to the present invention, one side of the embroidery frame is engaged with one side of the base frame that is in contact with the embroidery frame, or the embroidery is adjacent to the embroidery frame in order to prevent deformation toward the inside of the embroidery frame. By providing at least one restricting means for engaging adjacent sides of the embroidery frame, one side of the embroidery frame is connected to one side of the base frame, or the relative position of the adjacent sides of the adjacent embroidery frame. The position is fixed. Thereby, even when the tension of the embroidery cloth is applied to the embroidery frame, the embroidery frame can be prevented from being deformed inward. Therefore, pattern shift due to it can be prevented.
According to the embroidery frame mounting method, first, the embroidery frame is temporarily fixed via the holding member to a holding device provided with a holding member corresponding to at least one side of the embroidery frame. The embroidery frame is spread on the embroidery frame, and the embroidery frame on which the embroidery cloth is stretched is removed from the holding device, and the embroidery frame is removed from the holding device. To the base frame of the embroidery sewing machine via the mounting device. Thereby, when the embroidery cloth is extended with respect to the embroidery frame before the embroidery frame is mounted on the base frame, each side of the embroidery frame is deformed inward by the tension of the embroidery cloth. Can be prevented.

An embodiment of the present invention will be described below with reference to the accompanying drawings. In the following description, the same reference numerals are given to the same components as those already shown in FIGS. 11 and 12, and the detailed description thereof will be appropriately omitted.
FIG. 1 is an overall plan view of a multi-head embroidery sewing machine. A flat rectangular base frame 1 is placed on the upper surface of a table T of a multi-head embroidery sewing machine having a plurality of (four in the illustrated example) sewing machine heads H. The base frame 1 is movable in the X and Y directions by an X-axis driving mechanism and a Y-axis driving mechanism (not shown). Four embroidery frames 2 are detachably mounted on the base frame 1 so as to correspond to the respective sewing heads H. Each embroidery frame 2 is formed in a rectangular frame shape, and is formed by two first connecting mechanisms 4 at a rear portion (a lateral side at the back in the Y direction) and at a front portion (a lateral side at the front side in the Y direction). Are connected to the base frame 1 by two second connection mechanisms 5, respectively. FIGS. 11 and 12 show the detailed configuration of the first connection mechanism 4 and the second connection mechanism 5 and the manner of connection between the base frame 1 and each embroidery frame 2 by the first connection mechanism 4 and the second connection mechanism 5. This is the same as the prior art.

  As shown in the figure, four embroidery frames 2 are arranged such that the rear side and the front side of each embroidery frame 2 are along the rear side and the front side of the base frame 1 within the frame of the flat rectangular base frame 1. The embroidery frames 2 are arranged in parallel in the X direction in a state of being close to each other, and are arranged so that the mutually adjacent embroidery frames 2 are close to each other. That is, the opposing frame members (vertical sides) of the embroidery frames 2 arranged adjacent to each other are substantially in contact with each other. The embroidery frame 2 located at the right end of the embroidery frames 2 arranged side by side in the X direction has its right vertical side parallel to the inside of the right vertical side of the base frame 1, and The embroidery frame 2 located at the left end is arranged such that its left vertical side is parallel to and substantially parallel to the inside of the left vertical side of the base frame 1. It is arranged to be close. On both left and right vertical sides of the base frame 1, there are provided support members 15 used as one component of regulating means for preventing deformation of the embroidery frame 2 at the corresponding location.

  FIG. 2 is an enlarged plan view showing an example of the embroidery frame 2 located at the right end in FIG. FIG. 3 is a cross-sectional view as viewed from the II direction in FIG. 2, and FIG. 4 is a cross-sectional view as viewed from the II-II direction in FIG. The embroidery frame 2 is composed of a frame material having an L-shaped cross section and having an outer peripheral wall 2a rising from an inner peripheral edge 2b. A ridge 3 is provided along the upper surface of the inner peripheral edge portion 2b, and the embroidery cloth placed on the ridge 3 is sandwiched by a well-known holding clip (not shown) to embroider the embroidery on the embroidery frame 2. Hold the cloth.

  In FIG. 2, the support member 15 provided on the right side (vertical side) of the base frame 1 is located at a position substantially corresponding to an intermediate position of the vertical side of the embroidery frame 2 with respect to the edge of the base frame 1. The rear end of the support member 15 is fixed by screws or the like, and the support member 15 is installed so that the front end side protrudes inside the base frame 1. The tip of the support member 15 is in contact with the outer peripheral wall 2 a on the right vertical side of the embroidery frame 2. The fitting member 16 is a member that engages the support member 15 and the embroidery frame 2 as one component of a restricting means for preventing deformation of the embroidery frame 2. 2 is detachably attached to a contact portion with the outer peripheral wall 2a. A handle 17 is provided at one end of the fitting member 16 so that an operator can easily attach and detach the fitting member 16.

As shown in FIG. 4, the distal end of the support member 15 is bent and formed into a concave shape, and a rising portion 15a that rises from the bottom surface of the concave portion is formed. The rising portion 15a is in parallel with the outer peripheral wall 2a in a state where the rising portion 15a is in contact with the outer peripheral surface of the outer peripheral wall 2a of the embroidery frame 2. The upper end of the rising portion 15a is located on the same plane as the upper end of the outer peripheral wall 2a, and the bottom surface of the recess is located at substantially the same height as the inner peripheral edge 2b of the embroidery frame 2. Therefore, the rising portion 15a and the outer peripheral wall 2a have substantially the same height and width. Therefore, the outer surface of the outer peripheral wall 2a facing the rising portion 15a is abutted over substantially the entire height width thereof. This makes the engagement between the support member 15 and the embroidery frame 2 by the fitting member 16 more reliable.
The fitting member 16 attached to the support member 15 and the outer peripheral wall 2a is a member having a U-shaped cross section, and the outer peripheral wall 2a of the embroidery frame 2 and the rising portion 15a with the U-shaped opening side facing downward. It is mounted so as to cover the part where. Thus, the outer peripheral wall 2a and the rising portion 15a are sandwiched by the fitting member 16, and the relative position between the support member 15 and the right side of the embroidery frame 2 is fixed.
The support member 15 provided on the left vertical side of the base frame 1 shown in FIG. 1 is also configured in the same manner as described above, and is engaged with one side of the adjacent embroidery frame 2 so that the relative position of the side can be changed. Fix it.

Another embroidery frame 2 is arranged adjacent to the left side of the embroidery frame 2. Between the two embroidery frames 2 arranged adjacent to each other, a fitting member 18 having substantially the same length as the vertical side of the embroidery frame 2 is detachably mounted. The fitting member 18 is a member that engages opposing sides (frame members) of the embroidery frame 2 arranged adjacent to each other as one component of a regulating unit for preventing deformation of the embroidery frame 2. is there. A handle 19 is provided at one end of the fitting member 18 to facilitate attachment and detachment of the fitting member 18.
As shown in FIG. 4, the opposing outer peripheral walls 2a of the adjacent embroidery frames 2 are juxtaposed with their outer surfaces abutting each other. Here, the opposing outer peripheral walls 2a have the same length and height, so that the outer surfaces of both outer peripheral walls 2a come into full contact with each other. Since the fitting member 18 that engages the outer peripheral walls 2a has substantially the same length as the vertical side of the embroidery frame 2, the engagement at the location can be made more reliable. The fitting member 18 is a member having a U-shaped cross section, and is installed so that the opening side of the U-shape faces downward so as to cover the two outer peripheral walls 2a arranged side by side in the contacted state from above. As a result, the outer peripheral walls 2a are sandwiched by the fitting member 18, and the relative positions of the sandwiched sides are fixed.
In FIG. 1, a fitting member 18 similar to the above is installed at any position between two embroidery frames 2 arranged adjacent to each other.

On the front side of the base frame 1 (the horizontal side on the front side in the Y direction), there is provided a support member 20 which is used as one component of a regulating means for preventing deformation of the embroidery frame 2 at the relevant position. I have. The support member 20 is located at a position substantially corresponding to an intermediate position of a front side (a front side in the Y direction) of the embroidery frame 2 with respect to an edge of the base frame 1. Is fixed by screws or the like, and is installed such that the tip side protrudes inside the base frame 1. The tip of the support member 20 is in contact with the outer surface of the outer peripheral wall 2a on the front side of the embroidery frame 2. A fitting member 16 similar to that described above as a member for engaging the support member 20 and the embroidery frame 2 is detachably provided at a contact point between the distal end portion of the support member 15 and the outer peripheral wall 2a of the embroidery frame 2. Be attached.
As shown in FIG. 3, the distal end of the support member 20 is bent and formed into a concave shape, and a rising portion 20 a that rises from the bottom surface of the concave portion is formed. The rising portion 20a is in parallel with the outer peripheral wall 2a in a state of being in contact with the outer surface of the outer peripheral wall 2a of the embroidery frame 2 facing the embroidery frame 2. The upper end of the rising portion 20a is located on the same plane as the upper end of the outer peripheral wall 2a, and the bottom surface of the recess is located at substantially the same height as the inner peripheral edge 2b of the embroidery frame 2. Therefore, the rising portion 20a and the outer peripheral wall 2a opposed thereto have substantially the same height and width. Therefore, the outer surface of the outer peripheral wall 2a opposed to the rising portion 20a has the same height and width. Abuts over substantially the entire width of the This makes the engagement between the support member 20 and the embroidery frame 2 by the fitting member 16 more reliable.
The fitting member 16 is attached so as to cover a portion where the outer peripheral wall 2a and the rising portion 20a are arranged side by side with the U-shaped opening side facing downward, thereby clamping the outer peripheral wall 2a and the rising portion 20a, Thereby, the relative positions of the support member 20 and the front side of the embroidery frame 2 are fixed. In addition, on the front side of each embroidery frame 2 shown in FIG. 1, there is provided a restricting means composed of the same support member 20 and fitting member 16 as described above.

  The operation of this embodiment will be described with reference to FIG. When the embroidery frame 2 is mounted on the base frame 1, the operator first sets the embroidery frame 2 such that the rear side of the embroidery frame 2 (the side on which the first connection mechanism 4 is provided) is lowered. When the first connecting member 7 and the first receiving member 6 are brought into contact with each other obliquely, the attracting plate 10 is attracted to the magnetic plate 9 by magnetic force, and the first connecting member 7 is engaged with the groove 6a. . Then, when the front position of the embroidery frame 2 is lowered from this state, the first connecting member 7 and the first receiving member 6 are sucked in a completely engaged state, and the first connecting mechanism 4 is moved. At the same time, the second connection member 12 is engaged with the groove 11a of the second receiving member 11, and the second connection mechanism 5 is connected. The embroidery frame 2 mounted at a predetermined position on the base frame 1 by the first connection mechanism 4 and the second connection mechanism 5 is brought into contact with the support member 15 on the right side, and the front side (where the second connection mechanism 5 is provided). The left side is in contact with the support member 20, and the left side is in contact with one side (right side) of the adjacent embroidery frame. In this state, the fitting member 16 is attached to the right outer peripheral wall 2a of the embroidery frame 2 and the rising portion 15a of the support member 15 from above, and the front outer peripheral wall 2a of the embroidery frame 2 and the support member 20 are attached. The fitting member 16 is attached to the rising portion 20a from above, and the fitting member 18 is attached to the outer peripheral walls 2a of the embroidery frames 2 arranged adjacent to each other from above. Since the operator can perform the work of attaching and detaching the fitting members 16 and 18 by holding the handles 17 and 19, the attachment and detachment of the fitting members 16 and 18 can be easily performed.

The relative position of each side is fixed by each of the fitting members 16 and 18 functioning as regulating means for each corresponding side (frame material). Thereby, when the embroidery cloth is held by the embroidery frame 2, even if tension is applied to the right vertical side, the left vertical side, and the front horizontal side of the embroidery frame 2 by the embroidery cloth. In addition, it is possible to prevent each side from being deformed (bent) toward the inside of the frame, and to prevent a pattern shift resulting therefrom. As indicated by the imaginary line 2 'in FIG. 11, the deformation of the embroidery frame 2 due to the tension of the embroidered cloth appears largely near the center of each side. According to this embodiment, since the fitting member 16 is fitted near substantially the center of the corresponding side and is positioned here, the deformation at that location can be effectively prevented. Further, since the fitting members 18 for engaging the vertical sides of the adjacent embroidery frames 2 have substantially the same length as the embroidery frames 2, the tension from the embroidery cloth is applied to both sides. Positioning is more reliable.
The back side of the embroidery frame 2 can move relatively until the magnetic force that attracts the first connecting member 7 and the first receiving member 6 in the first connecting mechanism 4 is released. Since there is no embroidery cloth, there is almost no deformation due to the tension of the embroidered cloth. Therefore, it is not necessary to provide the position regulating means (support member and fitting member) on the side.

  When removing the embroidery frame 2 from the base frame 1, the embroidery frame 2 may be pulled upward from the base frame 1 while holding the grip portion 12 b of the second connection member 12. As a result, the connection between the second connection member 12 and the second receiving member 11 is released, the connection in the second connection mechanism 5 is released, and subsequently, the connection between the first connection member 7 and the first receiving member 6 is disconnected. The connection is released, and the connection of the first connection mechanism 4 is released. When the embroidery frame 2 is pulled up, the fitting members 16 and 18 are lifted together with the outer peripheral wall 2a of the embroidery frame 2, and the engagement is released. As described above, according to the position restricting means according to the present invention, the first and second connecting mechanisms 4 and 5 are released and the respective fitting members 16 are released only by pulling the embroidery frame 2 upward with respect to the base frame 1. , 18 are also released. For this reason, the removal of the embroidery frame 2 and the position regulating means (the support member and the fitting member) can be performed extremely easily as compared with the case of using fixing means by, for example, screwing.

  In the above embodiment, the length of the fitting member 18 is substantially the same as the length of the vertical side of the embroidery frame 2. However, the length of the fitting member 18 is not limited thereto. Thus, workability may be improved. In this case, the fitting member 18 is preferably mounted near the center of the vertical sides of the embroidery frames 2 adjacent to each other. Alternatively, a plurality of fitting members 18 having relatively short lengths may be mounted. Further, the configurations of the support members 15 and 20 and the fitting member 16 are not limited to those in the above-described embodiment. For example, a configuration in which a plurality of fitting members 16 are mounted on each side may be used, or As the fitting member 16, a relatively long member having substantially the same length as the corresponding side may be used.

  In the above embodiment, the support member 20 is provided to regulate the position also on the front side of the embroidery frame 2. However, the position is not restricted at this point, and the position restricting means is provided only on the left and right sides. May be provided. Further, a position restricting means may be provided on the rear side where the first connection mechanism 4 is provided.

Further, in the above-described embodiment, the example in which the first connection mechanism 4 and the second connection mechanism 5 are provided two by two for each embroidery frame 2 has been described. You can increase or decrease it.
The restricting means is not limited to a detachable means, and one side of the embroidery frame 2 is engaged with one side of the base frame 1 in contact with the embroidery frame 2 or the adjacent sides of the adjacent embroidery frame 2 are engaged with each other. As long as the mechanism is provided, for example, one side of the embroidery frame 2 and one side of the base frame 1 adjacent thereto are provided with a mechanism for interconnection, or an adjacent embroidery frame is connected to the adjacent side itself. It is also possible to provide a configuration having a mechanism for performing the above.

  By the way, when a plurality of embroidery frames 2 (one in the case of a single-head sewing machine) are mounted on the base frame 1 (raw material frame) in accordance with the sewing machine head and embroidery is performed, the embroidery frame 2 is embroidered. In most cases, after the cloth is stretched and held, the embroidery frame 2 is mounted on the base frame 1. This not only facilitates the work of spreading the embroidered cloth, but also expands and holds the embroidered cloth on an empty embroidery frame while performing embroidery on a certain embroidery frame 2. By doing so, work efficiency can be improved. However, according to the above-described embodiment, when the embroidery cloth is stretched and held after the embroidery frame 2 is set on the base frame 1, the embroidery frame 2 is deformed (bent) due to the tension of the stretched embroidery cloth. However, if the embroidery cloth is spread on the embroidery frame 2 before the embroidery frame 2 is set on the base frame 1, each side of the embroidery frame 2 is pulled by the tension of the embroidery cloth and deformed. As a result, inconveniences such as the inability to set the embroidery frame 2 on the base frame 1 may occur.

Therefore, when the embroidery cloth is spread on the embroidery frame 2 before the embroidery frame 2 is set on the base frame 1, a holding device as described below with reference to FIGS. It is better to use In the following description, the same reference numerals are given to the same components as those described above, and the description will be appropriately omitted.
6 to 10, reference numeral 21 denotes a holding device for holding the embroidery frame 2 when the embroidered cloth is spread on the embroidery frame 2. The holding device 21 includes a table 22 and four holding members 23 fixed to the table upper surface. As shown in FIG. 8, each holding member 23 has a holding wall 23a that rises in an L shape from the table surface. Each of the holding members 23 corresponds to each side of the embroidery frame 2, and when the embroidery frame 2 is mounted on the table 22, each of the holding walls 23 a corresponds to the outer peripheral wall 2 a of each side of the corresponding embroidery frame 2. Are provided at positions parallel to the outer side surface of each.

  When the embroidery cloth is spread on the embroidery frame 2, the embroidery frame 2 is first set on the holding device 21 from above, as shown in FIG. When the embroidery frame 2 is placed on the holding device 21, the outer peripheral walls 2a of each side of the embroidery frame 2 stand side by side inside the holding wall 23a of each holding member 23, as shown in the sectional view of FIG. I do. Then, the fitting member 16 is attached to each of the portions where the holding walls 23a and the outer peripheral walls 2a stand side by side. This fitting member 16 is the same as that described above. That is, this is a member having a U-shaped cross section, and is mounted so as to cover the outer peripheral wall 2a and the holding wall 23a, which are arranged side by side, with the opening side of the U-shape facing downward, thereby sandwiching both members. Then, the relative position between each side of the embroidery frame 2 and each holding member is fixed. The worker spreads the embroidered cloth 24 with the holding clip 25 on the embroidery frame 2 in which the relative positions of the sides are fixed in the holding device 21 as shown in FIG.

  As described above, when the holding device 21 is used to spread the embroidered cloth 24 on the embroidery frame 2, each side of the embroidery frame 2 is fixed to the holding wall 23 a of each holding member 23 by the fitting member 16. Since the embroidery cloth 24 can be expanded in this state, each side of the embroidery frame 2 is not deformed (bent) inward by being pulled by the embroidery cloth 24. For this reason, after the worker spreads the embroidered cloth 24 on the embroidery frame 2, the operator removes the embroidery frame 2 from the holding device 21, sets the embroidery frame 2 on the base frame 1, and fits each side thereof. The members 16 and 18 can be easily mounted. Therefore, even when the embroidered cloth is stretched on the embroidery frame 2 before the embroidery frame 2 is set on the base frame 1, the embroidery frame 2 on the base frame 1 can be formed by the fitting members 16 and 18 according to the present invention. Can be fixed relative to each other. When the embroidery frame 2 on which the embroidery cloth 24 is extended is removed from the holding device 21, each side of the embroidery frame 2 may be pulled inward by the embroidery cloth 24 and may be deformed inward. Since it is slight, the fitting members 16 and 18 can be easily attached even in this case.

  6 to 10 show an example in which four holding members 23 are provided corresponding to each side of the embroidery frame 2, but it is not necessary to provide four holding members 23. The number may be arbitrarily configured, such as two corresponding to the left and right sides of the frame 2. Further, the holding member 23 may be configured to be adjustable in position with respect to the table 22 so as to correspond to various sizes of the embroidery frame 2.

FIG. 1 is a plan view showing a multi-head sewing machine according to one embodiment of the present invention. The top view which expands and shows one of the embroidery frames shown in FIG. FIG. 3 is a sectional view taken along line II of FIG. 2. FIG. 2 is a sectional view taken along line II-II in FIG. 2. The perspective view showing the attachment structure of the embroidery frame with respect to the base frame concerning the embodiment. FIG. 5 is a plan view showing a holding device used to spread the embroidered cloth on the embroidery frame. FIG. 7 is a perspective view showing an attachment structure of an embroidery frame to the holding device shown in FIG. 6. FIG. 8 is a perspective view illustrating one of the holding members in FIG. 7 extracted and enlarged. Sectional drawing of the holding device shown in FIG. FIG. 7 is an exemplary perspective view showing expansion of the embroidered cloth using the holding device shown in FIG. 6; The top view showing the connection mechanism of the embroidery frame with respect to the conventional base frame. FIG. 13 is a sectional view taken along line III-III in FIG. 11.

Explanation of reference numerals

REFERENCE SIGNS LIST 1 base frame, 2 embroidery frame, 3 ridges, 4 first connecting mechanism, 5 first connecting mechanism, 6 first receiving member, 7 first connecting member, 11 second receiving member, 12 second connecting member, 15 Support member, 16 fitting member, 17 handle, 18 fitting member, 19 handle, 20 support member, 21 holding device, 22 table, 23 holding member, 24 embroidered cloth, 25 holding clip

Claims (4)

An embroidery frame mounting apparatus for detachably mounting one or more rectangular embroidery frames on a rectangular base frame via mounting means,
In order to prevent deformation toward the inside of the embroidery frame, a restriction that engages one side of the embroidery frame with one side of the base frame that is in contact with the embroidery frame or engages adjacent sides of an adjacent embroidery frame An embroidery frame mounting device comprising at least one means.   The embroidery frame mounting device according to claim 1, wherein the restricting means is detachable.   The restricting means is formed of a member having a U-shaped cross section, and sandwiches an engagement portion between the embroidery frame and the base frame or an engagement portion between the embroidery frames arranged adjacent to each other. 3. The embroidery frame mounting device according to claim 1, wherein the engagement by the restricting means is released when the embroidery frame is pulled upward from the base frame. A first step of spreading an embroidered cloth on the embroidery frame in a state where the embroidery frame is temporarily fixed via the holding member on a holding device provided with a holding member corresponding to at least one side of the embroidery frame; When,
An embroidery frame on which the embroidered cloth is spread is removed from the holding device, and the embroidery frame is mounted on the base frame of the embroidery sewing machine via the embroidery frame mounting device according to any one of claims 1 to 3. A method for mounting an embroidery frame comprising the second step.

Images