JP2005325490A - Pocket frame for embroidery sewing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently carry out continuous processing of a pocket and another tubular body by retaining a pocket without forcibly stretching it and extending an embroidery range in the right and left direction. <P>SOLUTION: The pocket frame for an embroidery sewing machine is equipped with a frame 12 to be attached to the rotary driving frame of the embroidery sewing machine, a receiving frame 18 which is projected forward from the frame 12 and inserted into the inside of the pocket, a band member 31 to nip the outer cloth of the pocket between the band member and the receiving frame 18 and a latching member 26 for retaining the band member 31 at a position overlapped on the receiving frame 18. The receiving member 18 is equipped with a supporting part 18b narrower than the opening width of the pocket and the supporting part 18b is curved around the axis of the rotary driving frame. The supporting part 18b is equipped with a sewing window 23 to determine the embroidery range and the band member 31 is equipped with a ring-shaped press part 38 for pressing the outer cloth to the supporting part 18b around a sewing window 63. A plurality of kinds of receiving frames 18 having different width is prepared. The pocket frame is equipped with these receiving frames replaceably with the frame 18. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a pocket frame used for holding a pocket of a sewing product in an embroidery sewing machine.

  Patent Document 1 describes a technique for driving a pocket frame with a rotary drive frame for processing a cylinder. As shown in FIG. 16A, the pocket frame 51 includes a cylindrical (kamaboko-shaped) receiving frame 53 that covers the bed 1, and a rear end thereof is connected to a rotation drive frame 54 of the embroidery sewing machine. A planar support portion 55 that supports the outer cloth Pa of the pocket P is formed at the front end of the receiving frame 53, and a sewing window 56 is provided in the support portion 55. Then, the pocket P is put on the receiving frame 53, and the receiving frame 53 is rotated in the left-right direction by the rotation drive frame 54 and linearly driven in the front-rear direction, and the embroidery portion of the outer cloth Pa is made into the needle hole 46 (needle drop point). It is designed to be positioned. Note that the rotational drive frame is standardly equipped on an embroidery sewing machine that processes a cylindrical object such as a hat or a sock.

Patent Document 2 and Patent Document 3 describe a technique for driving a pocket frame with a planar drive frame (XY drive frame) for processing a workpiece. As shown in FIG. 17A, the pocket frame 61 includes a flat receiving frame 62 inserted inside the pocket P, and a sewing window 63 is formed in the receiving frame 62. Then, the receiving frame 62 is attached to a flat drive frame (not shown) of the embroidery sewing machine, the pocket P is placed on the bed 1 and the receiving frame 62, and the receiving frame 62 is linearly driven in the XY plane by the flat drive frame. The embroidery portion of the outer cloth Pa is positioned at the drop point.
Japanese Examined Patent Publication No. 62-42066 JP-A-2-293460 JP 2000-229187 A

  However, according to the pocket frame 51 of Patent Document 1, since the receiving frame 53 is formed in a cylindrical shape, in the case of the pocket P having a narrow opening width, the outer cloth Pa and the inner cloth Pb are forcibly extended to receive the receiving frame 53. There is a problem that, depending on the fabric, slack remains in the pocket portion of the sewing product after processing. Further, since the support portion 55 of the receiving frame 53 is formed in a planar shape, the distance between the outer cloth Pa and the needle plate 47 as the rotation angle of the receiving frame 53 increases as shown in FIG. Will spread. For this reason, there is a problem in that an accurate embroidery pattern cannot be processed near the left and right ends of the sewing window 56, and the embroidery range in the left-right direction is substantially limited to the vicinity of the center of the sewing window 56.

  Since the pocket frame 61 of Patent Documents 2 and 3 drives the flat receiving frame 62 in the XY plane, the outer cloth Pa is pulled up by the left and right ends of the receiving frame 62, and the length of the pocket P around the bed. Becomes longer. Therefore, when the wide receiving frame 62 is used, the outer cloth Pa and the inner cloth Pb are stretched. In order to prevent the elongation, it is necessary to limit the amount of movement of the receiving frame 62 in the left-right direction, which also limits the embroidery range and cannot be applied to large embroidery processing. In addition, since the receiving frame 62 is driven by the flat drive frame, for example, when a name or mark that matches the work cap is processed in the pocket of the work clothes, in addition to the replacement of the hat frame and the pocket frame 61, the rotational drive It was necessary to replace the frame with a flat drive frame, and there was also a problem that it took time to change the setup for continuous machining of pockets and other cylinders.

  The object of the present invention is to solve the above-mentioned problems, and can hold the pocket without forcibly extending it, extend the embroidery range in the left-right direction, and can efficiently perform continuous machining of the pocket and other cylinders. It is to provide a pocket frame for use.

  In order to solve the above-described problems, a pocket frame of the present invention includes a frame that is attached to a rotational drive frame of an embroidery sewing machine, a receiving frame that protrudes forward from the frame and is inserted inside the pocket, and a receiving frame. And a band member that sandwiches the outer fabric of the pocket, and the receiving frame is formed narrower than the opening width of the pocket, and is curved around the axis of the rotary drive frame, and a sewing window is provided on the receiving frame to define the embroidery range. It is characterized by.

  Here, as the rotation drive frame, a drive frame used for cylinder processing, for example, a cylindrical drive frame that can be shared with a hat frame or a sock frame can be used. The frame of the pocket frame is not limited to a specific shape. For example, when the frame is attached to a cylindrical rotary drive frame, it is preferable to form the frame in an annular shape or a cylindrical shape from the viewpoint that the attachment accuracy can be improved. The receiving frame can be formed integrally with the frame, but it is preferable to use a member separate from the frame so that the receiving frame can be exchanged according to the opening width of the pocket. Specifically, it is preferable to provide an attachment member for attaching a plurality of types of receiving frames having different widths to the frame in a replaceable manner. Examples of the attachment member include a screw member, a clamp member, a hook member, and a snap member.

  As the band member, a member separated from the frame or a member assembled to the frame can be used. Examples of the former member include a string, a rubber band, a hook-and-loop fastener belt, and a magnet. Examples of the latter member include a resin or metal plate, preferably an elastic plate. A band member made of an elastic plate may be pivotally attached to the frame so that it can be opened and closed with respect to the receiving frame. In this case, the opening and closing direction of the band member may be the left-right direction or the up-down direction, but the left-right direction is preferable in that the receiving frame can be easily inserted to the bottom of the pocket. Moreover, in order to hold | maintain an outer cloth firmly, it is good to comprise so that an annular pressing part may be provided in a band member and an outer cloth may be received and pressed to a frame in the perimeter of a sewing window. The shape of the sewing window is not particularly limited, and examples thereof include a quadrangle, a circle, and an ellipse.

  According to the pocket frame of the present invention, since the frame is attached to the rotational drive frame of the embroidery sewing machine, one continuous rotational drive frame can be shared by a plurality of types of cylinders when the pocket and other cylinders are continuously processed. It is possible to efficiently perform a series of cylinder processing without the need for replacement. Further, since the receiving frame is formed to be narrower than the opening width of the pocket, the pocket can be held in a state where the outer cloth and the inner cloth are not stretched. Moreover, since the receiving frame is curved around the axis of the rotary drive frame, the distance between the outer cloth and the needle plate can be kept constant regardless of the rotation angle of the receiving frame, and the length of the pocket around the bed can be increased. By shortening, elongation of the outer cloth and the inner cloth can be suppressed. Therefore, the receiving frame can be rotated at a large angle, the embroidery range in the left-right direction can be expanded, and a large embroidery pattern can be accurately processed there.

  FIG. 1 shows the best mode for carrying out the present invention. The pocket frame 11 includes a frame 12 attached to the rotational drive frame of the embroidery sewing machine, a receiving frame 18 protruding forward from the frame 12 and inserted inside the pocket, and an outer cloth of the pocket between the receiving frame 18. A band member 31 to be sandwiched and a hooking member 26 that holds the band member 31 at a position overlapping the receiving frame 18 are provided. The receiving frame 18 is formed so as to be narrower than the opening width of the pocket and to be curved around the axis of the rotary drive frame. The receiving frame 18 is provided with a sewing window 23 that defines an embroidery range, and the band member 31 is provided with an annular pressing portion 38 that presses the outer cloth against the frame 18 around the entire circumference of the sewing window 23. A plurality of types of receiving frames 18 having different widths are attached to the frame 12 in an exchangeable manner by mounting members (bolts 21 and nuts 22).

  Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 2 and 3, the embroidery sewing machine according to this embodiment is provided with a cylindrical rotary drive frame 2 used for processing a cylinder on the outside of the bed 1. The rotary drive frame 2 is supported on a base 3 extending in a vertical plane so as to be rotatable around an axis A extending in the front-rear direction by three rollers 4, and is rotated in the left-right direction via a wire 6 by an X feed frame 5. A ball spline shaft 7 is attached to the lower surface of the bed 1 in parallel with the axis A of the rotary drive frame 2, and the base 3 is linearly moved in the front-rear direction via the ball spline shaft 7 by the Y feed frame 8.

  The pocket frame 11 includes a cylindrical frame 12 that is fitted on the front end of the rotary drive frame 2. A concave portion 17 (see FIG. 1) that opens rearward is formed on the top of the frame 12, and a positioning convex portion 10 that fits into the concave portion 17 is provided on the rotary drive frame 2. Further, a pair of left and right latching pieces 13 (see FIG. 4) project from the outer surface of the frame 12, and a lever 14 for latching the latching piece 13 on the rotary drive frame 2 is provided. Then, the pocket frame 11 is attached to the rotary drive frame 2 so as to be exchangeable with a cylindrical object holding frame such as a hat frame or a sock frame by the operation of detaching the lever 14. As shown in FIG. 9, the hat frame 15 includes a frame 16 having substantially the same shape as the pocket frame 11, and is attached to and detached from the rotary drive frame 2 by the frame 16.

  As shown in FIGS. 1 and 4 to 6, a receiving frame 18 inserted inside the pocket P is attached to the frame 12 of the pocket frame 11 so as to protrude forward. The receiving frame 18 includes a base portion 18a and a support portion 18b, and is formed with the same curvature as that of the frame 12 so as to be curved around the axis A of the rotary drive frame 2 by a thin plate made of metal or resin. At the top of the frame 12, a notch 19 into which the base 18a is fitted and a top plate 20 that covers the notch 19 are provided. The base 18 a is provided with two left and right bolts 21 penetrating the top plate 20, and the base 18 a is attached to the frame 12 by nuts 22 that are screwed into the bolts 21.

  The support portion 18b is formed narrower than the opening width of the pocket P, and supports the outer cloth Pa from the inside of the pocket P. A square sewing window 23 that defines the embroidery range of the outer cloth Pa is transparently provided in the support portion 18b. In the receiving frame 18, a plurality of types of replacement frames having different widths of the support portions 18 b according to the opening width of the pockets P are prepared. For example, the receiving frame 18 shown in FIG. 4 is a replacement frame used for the pocket P having an opening width W1 of 104 mm, and the width of the support portion 18b is set to 63 mm. The receiving frame 18 shown in FIG. 6 is a replacement frame used for the pocket P having an opening width W2 of 112 mm, and the width of the support portion 18b is set to 100 mm. The bolt 21 and the nut 22 constitute an attachment member for attaching the plurality of types of receiving frames 18 to the frame 12 in a replaceable manner.

  On both the left and right sides of the receiving frame 18, a rod 25 and a retaining plate 26 project forward from the frame 12. The rear end of the rod 25 is fixed to the flange portion 27 and the tongue piece 28 of the frame 12, and the rear end of the retaining plate 26 is attached to the peripheral wall of the frame 12 by bolts 29 and nuts 30. A band member 31 is supported on the rod 25 so as to be openable and closable with respect to the receiving frame 18 in the left-right direction. The band member 31 is formed in a horizontally long rectangle by a thin elastic plate such as metal or resin, a bearing portion 32 inserted into the rod 25 is formed at the base end, and a locking member 33 (Patchon lock) is provided at the free end. ing. A hook 35 for folding the retaining ring 34 of the locking member 33 is bent at the front end of the locking plate 26, and the band member 31 is held by the locking member 33 in a closed position where it overlaps the support portion 18 b of the receiving frame 18. Is done.

  An opening 37 having a shape similar to that of the sewing window 23 is formed in an intermediate portion of the band member 31 with a slightly larger area than the sewing window 23. An annular pressing portion 38 is provided around the opening 37, and the band member 31 is configured to sandwich the outer cloth Pa of the pocket P between the pressing portion 38 and the support portion 18b in the closed position. Note that a flexible member 39 (see FIG. 1) such as rubber is bonded to the lower surface of the presser portion 38 so that a presser trace does not remain on the outer cloth Pa. As shown in FIG. 7, a double-sided adhesive tape 40 for positioning and holding the outer cloth Pa on the frame 18 is attached to the upper surface of the support portion 18b in an annular shape.

  A long hole 41 (see FIG. 3) through which the bolt 29 is passed is formed in the rear end mounting portion of the latch plate 26 so as to extend in the circumferential direction of the frame 12, and the height of the hook 35 is adjusted within the length range of the long hole 41. By doing so, the pressing force of the band member 31 can be adjusted according to the thickness of the outer cloth Pa. The band member 31 is provided with a plurality of types of members having different sizes of the opening 37 in combination with the receiving frame 18 (see FIG. 6), and these members are attached to the rod 25 in an exchangeable manner. A ring 43 to which a set screw 42 is screwed is inserted into the rod 25, and the position of the band member 31 in the front-rear direction is adjusted by the ring 43, and the set screw 42 is fastened to the rod 25, thereby opening the opening 37 and the sewing window 23. Are aligned. The six-face shape of the pocket frame 11 is shown in FIGS.

  The usage method of the pocket frame 11 comprised as mentioned above is demonstrated. When processing the embroidery pattern in the pocket P of the sewing product, first, a hat setting jig (not shown: a jig having substantially the same shape as the rotary drive frame 2) installed on a work table near the embroidery sewing machine is used. The pocket P is set in the pocket frame 11 in advance. In this case, as shown in FIG. 5, the cardboard B is laid on the receiving frame 18, the pocket P is inserted into the receiving frame 18, and the band member 31 is closed with the cardboard B holding the shape of the outer cloth Pa. The outer cloth Pa is sandwiched between the pressing portion 38 of the band member 31 and the support portion 18b. At this time, since the support portion 18b is formed to be narrower than the opening width of the pocket P, the outer cloth Pa can be set on the receiving frame 18 without forcibly stretching it. Therefore, even in the case of a small pocket, there is no possibility that slack remains after processing, and the quality of the sewn product is improved.

  Next, the pocket frame 11 in which the pocket P is set is attached to the rotational drive frame 2 of the embroidery sewing machine. In this case, the pocket P is put on the bed 1 and the frame 12 of the pocket frame 11 is fitted to the rotary drive frame 2 as shown in FIG. Then, the latch piece 13 of the frame 12 is latched by the lever 14 of the rotary drive frame 2. By doing so, the pocket frame 11 can be accurately attached to the rotation drive frame 2 by one-touch operation by fitting the cylindrical bodies. Further, as shown in FIG. 9, a series of cylinders such as one rotary drive frame 2 can be shared for embroidery processing of the pocket P and hat embroidery processing by removing the pocket frame 11 and replacing it with the cap frame 15. Processing can be performed efficiently.

  When the operation of the embroidery sewing machine is started with the pocket frame 11 attached to the rotational drive frame 2, the pocket frame 11 is rotationally driven in the left-right direction and linearly driven in the front-rear direction by the rotational drive frame 2, and the needle 44 (FIG. 2) and the hook 45, the embroidery pattern is processed on the outer cloth Pa on the receiving frame 18. At this time, since the support portion 18b of the receiving frame 18 is curved around the axis A of the rotary drive frame 2, the left and right sides of the receiving frame 18 with respect to the needle hole 46 are shown in FIGS. 8 (a) and 8 (b). Regardless of the direction position, the distance between the outer cloth Pa and the needle plate 47 is kept constant. Therefore, the embroidery processing with the same accuracy as the center portion can be performed at the left end portion or the right end portion of the embroidery window 23. The receiving frame 18 shown in FIG. 8 is the wide receiving frame 18 shown in FIGS. 6 and 7B.

  Further, by bending the receiving frame 18, the length of the pocket P around the bed 1 is smaller than that of the conventional flat receiving frame 62 (shown in FIG. 17 having the same width as the receiving frame 18). Shorter. For this reason, it is possible to drive the receiving frame 18 at a large angle without reducing the amount of cloth elongation at the left and right swing ends of the receiving frame 18 and forcibly stretching the outer cloth Pa and the inner cloth Pb. Therefore, the embroidery range of the outer cloth Pa can be expanded and a large embroidery pattern can be processed there. The width of the support portion 18b shown in FIGS. 4 and 6 is based on the opening widths W1 and W2 of the pockets P and the circumferential length of the bed 1, and the outer cloth Pa and the inner cloth Pb at the swing end of the receiving frame 18 as well. The dimension is set so that no elongation occurs.

The present invention is not limited to the above-described embodiments. For example, as described below, the present invention can be appropriately modified and embodied without departing from the spirit of the invention.
(1) The pocket frame 11 is formed in a half-cylindrical frame, and is attached to the cylindrical rotary drive frame 2.
(2) As the band member, a flexible member such as a rubber band, a cloth belt or a hook-and-loop fastener belt is used.
(3) The rear end of the band member is supported on the frame by a horizontal axis, and is provided so as to be openable and closable with respect to the receiving frame 18.

It is a perspective view which shows the Example of the pocket frame which concerns on this invention. It is a front view which shows the state which attached the pocket frame to the rotation drive frame. FIG. 3 is a right side view of FIG. 2. It is a top view which shows the state which hold | maintained the pocket to the receiving frame of a pocket frame. It is the VV sectional view taken on the line of FIG. It is a top view which shows the pocket frame which attached the receiving frame different from FIG. It is a top view which shows the receiving frame of FIG.4 and FIG.6. It is a front view explaining the effect | action of a pocket frame. It is a right view which shows the state which attached the cap frame to the rotation drive frame. It is a front view of a pocket frame. It is a rear view of a pocket frame. It is a top view of a pocket frame. It is a bottom view of a pocket frame. It is a right view of a pocket frame. It is a left view of a pocket frame. It is sectional drawing which shows the conventional pocket frame. It is sectional drawing which shows another conventional pocket frame.

Explanation of symbols

2 Rotation Drive Frame 11 Pocket Frame 12 Frame 18 Receiving Frame 18b Support Portion 21 Bolt 22 Nut 23 Sewing Window 26 Latching Plate 31 Band Member 38 Presser A A Rotation Drive Frame Axis P Pocket Pa Outer Cloth

Claims (2)

  A frame attached to the rotational drive frame of the embroidery sewing machine, a receiving frame that protrudes forward from the frame and is inserted inside the pocket, and a band member that sandwiches an outer cloth of the pocket between the receiving frame, A pocket frame for an embroidery sewing machine, wherein the receiving frame is formed narrower than an opening width of the pocket, and is curved around an axis of the rotary drive frame, and a sewing window is provided in the receiving frame to define an embroidery range.   The pocket frame for an embroidery sewing machine according to claim 1, further comprising an attachment member for attaching the plurality of types of receiving frames having different widths to the frame in a replaceable manner.

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