WO2014065195A1

WO2014065195A1 - Frame side restricting device for sewing frame

Info

Publication number: WO2014065195A1
Application number: PCT/JP2013/078224
Authority: WO
Inventors: 勝治吉川; 広文高木
Original assignee: 東海工業ミシン株式会社
Priority date: 2012-10-22
Filing date: 2013-10-17
Publication date: 2014-05-01
Also published as: US20150267335A1; CN104736755A; KR20150079587A; JPWO2014065195A1; DE112013005103T5

Abstract

A restricting member (11) is positioned above a sewing machine table (2) and below a sewing frame (7) arranged moveably in the X and Y directions of the sewing machine, and moves in the Y direction together with the sewing frame (7), but is linked to the sewing frame (7) so as not to follow movement of said sewing frame (7) in the X direction; the restricting member (11) engages with the two sides (7a, 7b) of the sewing frame (7) so as to maintain at a prescribed interval the interval in the Y direction of the two sides of the sewing frame (7) which extend in the X direction. A guide member (10) is provided on the top surface of the sewing machine table (2) and slidably guides the restricting member (11) in the Y direction. For example, the guide member (10) comprises a groove depression formed on the top surface of the sewing machine table (2) and the restricting member (11) enters into the groove depression and can slide along the groove.

Description

Frame side regulation device for sewing frame

The present invention relates to a frame side regulation device for a sewing frame for preventing deformation of a sewing frame that holds a workpiece in a sewing machine.

In a conventionally known embroidery sewing machine, a rectangular embroidery frame for holding a cloth to be embroidered is disposed movably in the X direction and the Y direction on a sewing machine table, and an X direction drive mechanism and a Y direction drive mechanism There are those driven in the X direction and the Y direction by the operation of In such an embroidery sewing machine, the front end (horizontal side on the front side in the Y direction) and the rear end (horizontal side on the rear side in the Y direction) of the rectangular embroidery frame are pulled against the embroidery cloth as the embroidery progresses. There is a device provided with a regulating member that regulates the distance between the two in order to prevent deformation.

Japanese Patent Application Laid-Open No. 05-163660 (hereinafter referred to as Patent Document 1) discloses an example of this type of embroidery sewing machine. In this embroidery sewing machine, a plurality of X-direction drive mechanisms and Y-direction drive mechanisms are disposed on the lower surface of the sewing machine table. The X direction drive mechanism has an X mover (described as a fixed plate in Patent Document 1) which is reciprocally driven in the X direction by the drive of the drive motor, and the Y direction drive mechanism reciprocates in the Y direction by the drive of the drive motor. It has a Y mover to be driven. The X mover on the sewing machine table is fixed to the X mover in the X direction drive mechanism, and the Y mover on the sewing machine table is fixed to the Y mover on the Y direction drive mechanism. Yes. The right side portion (vertical side on the right side in the X direction) of the embroidery frame is connected to the X side base so as to be integrally driven with the X side base in the X direction and to be relatively driven in the Y direction. The rear end (horizontal side on the rear side in the Y direction) of the embroidery frame is connected to the Y side base so as to be integrally driven with the Y side base in the Y direction and to be relatively driven in the X direction. is there. Thus, the embroidery frame is driven in the X direction and the Y direction by the operation of the X direction drive mechanism and the Y direction drive mechanism.

A support mechanism is provided in front of the central Y-direction drive mechanism, and the support mechanism has a guide rail and a movable plate movable in the Y direction along the guide rail. Although not described in Patent Document 1 below, the support mechanism has a support base for fixing the guide rail. The moving plate is provided with four rollers, and the moving plate moves by rotating and moving the rollers along the guide rails. One roller is rotatably provided on the upper surface of the moving plate. The roller protrudes to the upper surface of the sewing machine table through the opening of a table lid fixed above the support mechanism. The moving plate is connected integrally to the front end of the embroidery frame in the Y direction by the roller so as to be relatively driven in the X direction. The moving plate is connected to the Y mover by a connecting plate, and the move plate is reciprocally driven in the Y direction together with the Y mover. Since the distance between the Y mover and the moving plate is restricted by the connecting plate, the distance between the rear end of the embroidery frame connected to the Y side base and the front end of the embroidery frame is restricted, and the embroidery frame is deformed. It is prevented.

On the other hand, Japanese Patent Application Laid-Open No. 2007-61213 (hereinafter referred to as Patent Document 2) discloses an example of an embroidery sewing machine of another form. In this embroidery sewing machine, a base elongated in the X direction is movably disposed on the sewing machine table in the X direction, and the base is connected to a Y direction drive mechanism disposed on the lower surface of the sewing machine table at both left and right ends. . A coupling body movable in the X direction is attached to the base body, and the coupling body is driven in the X direction relative to the base body by an X direction driving mechanism provided on the base body. It is driven in the Y direction integrally with the movement in the Y direction. The embroidery frame is connected to the connector at its rear end (the rear side in the Y direction) and attached in a cantilever manner to the sewing machine main body so as to extend substantially parallel along the upper surface of the sewing machine table. As a result, the embroidery frame is moved in both the X and Y directions integrally with the movement of the connector in the X and Y directions.

And, between the front end portion and the rear end portion of the embroidery frame, there is provided a frame assisting tool which is a regulating member for regulating the space between them. The frame assisting tool is configured to be foldable by the hinge member, attached to the embroidery frame by straightly extending the hinge member, and can be removed from the embroidery frame by bending. By this frame assisting tool, the distance between the front end portion and the rear end portion of the embroidery frame is restricted, and deformation of the embroidery frame is prevented.

In the embroidery sewing machine of Patent Document 1, a support mechanism is provided in front of the Y direction drive mechanism, and the moving plate of the support mechanism and the Y mover of the Y direction drive mechanism are connected by a connection plate. By restricting the distance between the moving plate and the Y mover by the connection plate, the distance between the front end and the rear end of the embroidery frame is restricted. With this configuration, deformation of the embroidery frame is reliably prevented. However, the support mechanism has a support base, a guide rail, and a moving plate having four rollers, and a table lid is fixed above the support mechanism. Therefore, the structure is complicated, the number of parts is large, the cost is increased and the assembling operation takes time.

On the other hand, the frame assisting tool of Patent Document 2 is simple in structure and cost can be reduced. However, the frame assisting tool must be detached each time the embroidered cloth is replaced, which is time-consuming. In addition, since the frame assisting tool also moves in the X direction together with the embroidery frame, when embroidering in the entire embroidable range, after embroidering to a certain position so that the frame assisting tool does not get in the way of the sewing needle The attachment position of the frame assisting tool has to be switched to another position to carry out the remaining embroidery, which is cumbersome and time-consuming.

The present invention has been made in view of the above-described point, and simplifies the configuration for preventing the deformation of the sewing frame for holding the cloth to be sewn, and requires time and effort when replacing the cloth to be embroidered In addition, it is an object of the present invention to eliminate the need for complicated switching operations.

The present invention is a frame side regulation device for a sewing frame for preventing deformation of a sewing frame (7) disposed so as to be movable in the X and Y directions in a sewing machine, the sewing frame (7) Is a regulating member (11) disposed below the sewing machine table (2), and moves in the Y direction together with the sewing frame (7), but the movement of the sewing frame (7) in the X direction To keep the Y-direction distance between the two sides of the sewing frame (7) connected to the sewing frame (7) and extending along the X direction so as not to follow The regulation member (11) engaged with two sides of the sewing frame (7), and the guide member (10) provided on the upper surface of the sewing table (2), the regulation member (11) And a guide member (10) slidably guided in the Y direction. In addition, the code | symbol shown in the parenthesis shows the drawing reference number in the Example mentioned later, and shows it only as a reference for facilitating understanding.

According to the present invention, the restricting member (11) is disposed below the sewing frame (7) and above the sewing table (2), and moves in the Y direction together with the sewing frame (7). A space between Y-directions of two sides of a sewing frame (7) connected to the sewing frame (7) and extending along the X direction so as not to follow the movement of the frame (7) in the X direction The sewing machine is engaged with two sides of the sewing frame (7) so as to hold the at a predetermined interval. Thereby, the deformation of the sewing frame in the Y direction is prevented. In addition, since the restriction member provided below the sewing frame is configured to be guided through the guide member (10) on the upper surface of the sewing machine table, the structure is simple, the number of parts is reduced, and the manufacturing cost and Assembly time can be reduced. Moreover, with this configuration, it is not necessary to detach the restriction member each time the sewing cloth attached to the sewing frame is replaced, and it takes no trouble when replacing the embroidery cloth. Further, since the restricting member does not move in the X direction, it is not necessary to switch the arrangement of the restricting member when embroidering the entire embroiderable range.

As one example, the restriction member (11) is formed of a rigid longitudinal member, and on the longitudinal member, positions corresponding to the two sides of the sewing frame (7) And the restriction elements (13, 16) are engaged with the respective sides of the two sides of the sewing frame (7) so as to be relatively movable in the X direction. Match.

As an example, the guide member (10) has a portion that restricts the movement of the restriction member (11) in the X direction. As an example, the guide member (10) forms a groove-like recess on the upper surface of the sewing machine table (2), and the restriction member (11) enters into the groove-like recess and can slide along the groove It is.

The top view of the embroidery sewing machine to which one example of the present invention is applied.

FIG. 2 is a schematic side sectional view of a base and an embroidery frame (sewing frame) attached thereto.

The front view of the frame side control apparatus which concerns on one Example of this invention.

The top view of the frame side control apparatus which concerns on the Example.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the attached drawings. In the embodiment to be described below, an embroidery sewing machine for performing embroidery on an embroidered cloth held by an embroidery frame will be described as an example of a sewing machine to which the present invention can be applied. However, the present invention is applicable not only to embroidery sewing machines but also to sewing machines having a configuration in which a sewing frame for holding a cloth to be sewn can be moved in the X and Y directions.

Fig. 1 shows a plan view of an embroidery sewing machine called a cylinder type that can be embroidered on a sheet-like fabric, a bag such as a trainer or T-shirt, or a hat by switching to a dedicated frame. is there. 1 is a sewing machine frame, 2 is a sewing machine table having a front table 2a which can be moved up and down, 3 is a sewing machine head, 4 is a cylinder bed equipped with a known hook, and 5 is a needle plate. Reference numeral 6 denotes a base elongated in the X direction provided on the sewing machine table 2, and both ends thereof are connected to a Y direction driving mechanism (not shown) provided below the sewing machine table 2. That is, the base 6 is a Y mover driven in the Y direction by the Y direction drive mechanism. A rectangular embroidery frame (sewing frame) 7 for holding a sheet-like original fabric (embroidered cloth) is detachably attached to the base 6 via a connecting body 8 described later. When the embroidery frame (sewing frame) 7 is attached, the front table 2 a is set to the same height as the fixed portion of the sewing machine table 2.

A schematic side sectional view of the base 6 and the embroidery frame 7 is shown in FIG. The base 6 is provided with an X-direction drive mechanism (not shown), and a connecting body 8 provided slidably in the X-direction with respect to the base 6 is connected to the X-direction drive mechanism. Thus, the connector 8 integrally moves in the Y direction with respect to the base 6 and is relatively moved in the X direction. The horizontal side 7b on the rear side in the Y direction of the embroidery frame 7 is detachably fixed to the connected body 8 so that the embroidery frame 7 is driven in the X / Y direction together with the connected body 8. That is, the movement in the Y direction by the Y direction drive mechanism is transmitted to the embroidery frame (frame for sewing) 7 through the base 6 and the connector 8, and the movement in the X direction by the X direction drive mechanism is embroidery through the connector 8. It is transmitted to the frame (frame for sewing) 7. The X direction refers to the lateral direction of the sewing machine (left and right direction as viewed from the front), and the Y direction refers to the front and back direction of the sewing machine.

Next, a frame side regulating device for a sewing frame according to an embodiment of the present invention will be described. In this embodiment, as shown in FIG. 1, the frame side regulating device for the sewing frame is the regulating member 11 provided at two places of the embroidery frame (sewing frame) 7 and the sewing machine table 2 corresponding thereto. And a guide member 10 provided at two places on the upper surface of the lens. FIG. 3 shows a front view of the frame side regulating device associated with one regulating member 11 and the guiding member 10. FIG. 4 shows a plan view of the frame side regulating device related to the same regulating member 11 and the guiding member 10. Since the configurations of the two restricting members 11 and the guide members 10 associated therewith are identical, one restricting member 11 and the guide members 10 associated therewith will be described in detail below. The frame side regulation device of the sewing frame according to the present invention may consist of only one regulation member 11 and the guide member 10 associated therewith, or three or more regulation members 11 and the guidance member associated therewith It may consist of ten.

As shown in FIGS. 3 and 4, the regulating member 11 is formed of a rigid member having a rigidity extending in the Y direction, and is disposed below the embroidery frame (sewing frame) 7, And located above the sewing machine table 2. As shown in FIGS. 2 and 4, the regulating member 11 is fixed to the base 6 by the mounting

screws

15 and 15 so as to move in the Y direction together with the base 6 (and consequently with the embroidery frame 7). The restriction member 11 corresponds to each side of the embroidery frame (sewing frame) 7 extending along the X direction on the long member (the front side horizontal side 7a and the rear side horizontal side 7b). Control elements (positioning collar 13 and roller 16) provided at the respective positions, which are movable relative to each other in the X direction as described later. It engages with the

sides

7a and 7b of the two sides of the frame (frame for sewing) 7. The Y direction of the two sides (front side lateral side 7a and rear side lateral side 7b) of the embroidery frame (sewing frame) 7 extending along the X direction by these restriction elements (positioning collar 13 and roller 16) The interval can be maintained at a predetermined interval.

A groove-like recess 9 is formed at a predetermined location (two locations) on the upper surface of the sewing machine table 2 over the entire length in the Y direction including the front table 2a. A guiding member 10 is provided to form a letter-shaped groove-like recess. The guide member 10 is divided at the rear end portion of the front table 2a so that the front table 2a can be moved up and down. The restricting member 11 is slidably mounted in the Y direction in the groove-like recess of the guide member 10. The restricting member 11 is formed in an inverted trapezoidal shape corresponding to the reverse C shape of the recess of the guide member 10, and by being placed on the guide member 10, both side walls of the groove-like recess of the guide member 10 Thus, the left and right position (the movement of the restriction member 11 in the X direction) is restricted. A plurality of slip promoting tapes 12 are attached to the surface of the restricting member 11 facing the groove-like recess of the guide member 10 so that the restricting member 11 slides smoothly. However, the slip promoting tape 12 is not necessarily required.

Two positioning collars 13 are fixed to the rear portion of the regulating member 11, and an engagement groove 13 a is formed on the side circumferential surface of the positioning collar 13. At the front end of the base 6, a U-shaped groove 14 in which the engagement groove 13a of the positioning collar 13 is fitted is formed. The restricting member 11 has its rear end fixed to the rear end of the base 6 by two mounting

screws

15, 15 in a state where the engaging groove 13 a of the positioning collar 13 is engaged with the U-shaped groove 14. Thus, the restricting member 11 moves in the Y direction together with the base 6. Three rollers 16 are erected at the front end of the regulating member 11. The three rollers 16 make the regulating member 11 integral with the side 7a on the front side of the embroidery frame 7 in the Y direction. It is linked so as to move relatively in the X direction.

The base 6 and the front horizontal side 7a of the embroidery frame 7 are fixed to the connector 8 provided on the base 6 by the restriction member 11 provided with the positioning collar 13 and the roller 16 (the restriction element) in this manner. The distance between the rear side 7b of the embroidery frame 7 and the front side 7a of the embroidery frame 7 is restricted to a predetermined distance, and deformation of the embroidery frame 7 is prevented.

In addition, in this embroidery sewing machine, when performing embroidering on a bag or a hat, the frame is switched to a dedicated frame. At this time, the regulating member 11 is also removed together with the embroidery frame 7. First, the horizontal side 7b on the rear side of the embroidery frame 7 is removed from the connector 8, and the horizontal side 7a on the front side of the embroidery frame 7 is lifted to release the connection with the three rollers 16 at the front end of the regulating member 11, The embroidery frame 7 is removed from the connected body 8. Next, remove the two attachment screws 15, 15 at the rear end of the restricting member 11, move the restricting member 11 to the front and remove the two

positioning collars

13, 13 from the U-shaped groove 14, and then restrict the restricting member 11. Remove from the guide member 10. Then, after the front table 2a is lowered, a bag or hat dedicated frame is attached to the coupling body 8 and the base 6. The embroidery frame 7 is attached in the reverse procedure described above. Thus, according to the configuration of the present invention, the control member 11 can be easily attached and detached.

As described above, according to the present embodiment, the two sides of the embroidery frame (sewing frame) 7 extended along the X direction by the restriction member 11 disposed on the lower side of the embroidery frame (sewing frame) 7 The Y-direction interval between the front side horizontal side 7a and the rear side horizontal side 7b is restricted, and the space is maintained at a predetermined distance to prevent the embroidery frame (sewing frame) 7 from being deformed. With this, it is possible to prevent distortion in the embroidery pattern sewn on the cloth to be sewn.

The restricting member 11 is disposed on the upper side of the sewing machine table 2. For this reason, the structure of the frame side regulating device is simplified, the number of parts is reduced, and the manufacturing cost and the assembly time can be suppressed.

Further, since the restricting member 11 is disposed below the embroidery frame 7, there is no need to detach the restricting member 11 every time the cloth to be sewn is replaced, and the restricting member is used when sewing over the sewable range. Since it is not necessary to switch the arrangement of 11, it does not take time for switching.

In the present embodiment, although the groove-like recess of the guide member 10 has a cross-sectional reverse C shape and the regulating member 11 has a reverse trapezoidal shape, the invention is not limited thereto. The groove-like recess of the guide member 10 has a U-shaped cross-section Alternatively, the restriction member 11 may have a rectangular cross section corresponding to its width. Alternatively, the guide structure of the guide member 10 is not limited to the groove-like recess but may be a rail-like protrusion, in which case the groove-like recess is formed on the lower surface of the regulating member 11 and the rail-like protrusion is formed. Be guided by the department. Alternatively, the groove-shaped recess formed by the guide member 10 may be formed to protrude on the upper surface of the table 2. That is, two rows of side wall convex portions may be formed on the upper surface of the table 2, and the restriction member 11 may be placed and guided between the both side wall convex portions. In that case, the rail-shaped convex portions or the two rows of side wall convex portions do not necessarily have to be continuous, and may be provided intermittently as appropriate. In short, the restriction member 11 is slidable in the Y direction with respect to the guide member 10, and has a shape (a part that restricts the movement of the restriction member 11 in the X direction) whose right and left (X direction) positions are restricted. Just do it. However, depending on the length of the embroidery frame 7 in the Y direction, in other words, the total length of the regulating member 11, the left and right positions of the regulating member 11 may not necessarily be regulated. Therefore, the guide member 10 may be configured to be mounted on the upper surface of the sewing machine table 2 so as to be able to slide smoothly in the Y direction without providing a special recess or protrusion as the guide member 10. .

The present invention may be applied to an embroidery sewing machine in which a plurality of X-direction drive mechanisms and Y-direction drive mechanisms are disposed on the lower surface of a sewing machine table. As this type of embroidery sewing machine, one having an X-side substrate and one having a Y-side substrate on a sewing machine table as in Patent Document 1 described in the prior art, or one having only one of the substrates, X There is one in which the embroidery frame is directly connected to the / Y direction drive mechanism. In this case, the frame side regulating device is provided at a position shifted to the left and right with respect to the Y direction drive mechanism.

Claims

A sewing machine frame side regulation device for preventing deformation of a sewing frame arranged to be movable in the X and Y directions in a sewing machine.
A restricting member disposed below the sewing frame and above the sewing machine table (2), and moves in the Y direction together with the sewing frame but does not follow the movement of the sewing frame in the X direction Engaging the two sides of the sewing frame so as to maintain the Y-direction spacing of the two sides of the sewing frame which is connected to the sewing frame and extends along the X direction The regulating member;
And a guide member provided on the upper surface of the sewing machine table, the guide member slidably guiding the restricting member in the Y direction.
The restricting member is formed of a rigid longitudinal member, and includes restricting elements provided on the longitudinal member at positions corresponding to the two sides of the sewing frame. The sewing machine frame side restriction device according to claim 1, wherein the restriction element engages with each side of the two sides of the sewing frame so as to be relatively movable in the X direction.
The frame side regulation device for a sewing frame according to claim 1 or 2, wherein the guide member has a portion for regulating the movement of the regulation member in the X direction.
The sewing frame according to claim 1 or 2, wherein the guide member forms a groove-like recess on the upper surface of the sewing machine table, and the restricting member enters into the groove-like recess and can slide along the groove. Frame side regulation device.