JP3169042B2 - Hat frame for sewing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hat frame for a sewing machine, and more particularly to a hat frame provided with a pressing mechanism for keeping a cloth member in an embroidery area of a hat tight.

[0002]

2. Description of the Related Art Conventionally, in a multi-needle embroidery sewing machine capable of embroidering with embroidery threads of a plurality of colors, a cloth to be sewn is set on an embroidery frame, and the embroidery frame is moved in the X-axis direction and the Y-axis direction (the arm portion of the embroidery sewing machine). Embroidery sewing is performed in a state where the embroidery sewing machine is attached to a movable frame that is driven independently of the embroidery direction. By the way, in order to embroider sewing on the front of the hat, a hat frame device connected to an X-axis drive mechanism and a Y-axis drive mechanism of an embroidery sewing machine is used.

[0003] This hat frame device comprises a hat frame drive unit and a hat frame detachably attached to the hat frame drive unit with the hat mounted. The hat frame driving unit generally includes a base frame that is driven in the Y-axis direction, and a rotation frame that is rotatably supported by the base frame and is driven to rotate around an axis parallel to the Y axis. However, a structure in which the base frame is omitted and the rotating frame and the hat frame are supported on the bed body by the guide shaft has been put to practical use.

[0004] For example, as described in Japanese Patent Application Laid-Open No. Hei 6-2557057, the cap frame includes a curved mounting frame for mounting to a rotating frame of a cap frame driving unit, and the front of the cap is provided. Frame body for externally fitting the part and the left and right neighboring parts and the sweat-absorbing part developed to the outside, and a holding frame member detachably fixed from the outside with the hat sandwiched between the hat frame body and the hat. Become. There are various shapes of the hat frame body, but in the case of a hat frame in which embroidery is performed only on the front portion of the hat, the hat frame body has a support frame that supports four sides on the outer peripheral side of the embroidery area of the hat. The holding frame member has a holding frame portion for holding the four sides of the outer peripheral side portion of the embroidery area of the hat on the supporting frame portions on four sides thereof.

[0005]

However, the conventional hat frame has a structure in which the cloth member of the hat is sandwiched and fixed between the supporting frame portion of the hat frame body and the holding frame portion of the holding frame member.
It has been difficult to apply tension to the cloth member in the embroidery area of the hat to keep it in a taut state. That is, since it is almost impossible to cover and fix the holding frame member while pulling the cloth member of the hat downward with both hands, it is difficult to keep the cloth member in a tight state without looseness. As a result, there are problems that the embroidery pattern applied to the hat frame is distorted, and the embroidered cloth member does not restore to the desired shape. SUMMARY OF THE INVENTION An object of the present invention is to provide a hat frame for a sewing machine that can set a cloth member in an embroidery area of a hat in a state where tension is applied.

[0006]

A hat frame for a sewing machine according to claim 1 is a hat frame of a hat frame device for a sewing machine, wherein the hat frame has a curved mounting frame portion for mounting on a rotating frame of the hat frame device. A hat frame body fixedly formed in the mounting frame portion and having a needle passage opening and a curved frame portion for externally setting the hat; and a curved frame portion of the hat frame body. A holding frame member which is detachably fixed from the outside with the hat sandwiched between the hat frame body, the bending of the bending frame portion on at least one of the left portion and the right portion of the bending frame portion of the hat frame body. An elongated ridge that protrudes upward from the surface and is provided in the depth direction of the hat is provided, and the cloth member of the hat fixed to the curved frame by the pressing frame member is pressed toward the curved frame at a position near the upper side of the ridge. The pressing mechanism is provided.

According to a second aspect of the present invention, in the hat frame for a sewing machine according to the first aspect, the pressing mechanism selects one of a pressing member for pressing a cloth member of the hat and a pressing position and a pressing release position. And a clamp means for selectively switching. A hat frame for a sewing machine according to a third aspect is the sewing machine according to the second aspect, wherein the pressing mechanism is provided on a holding frame member.
According to a fourth aspect of the present invention, in the hat frame for a sewing machine according to the second aspect, the clamp means includes a toggle clamp mechanism.

[0008]

In the hat frame for a sewing machine according to the first aspect, the hat frame has a hat frame body and a holding frame member, and the hat frame body has:
The cap frame is attached to the rotating frame of the cap frame device via the mounting frame. The curving frame of the cap frame body is fixedly formed on the mounting frame and has a needle passage opening. The hat is set on the frame portion so as to fit outside. The holding frame member is detachably fixed to the curved frame portion of the hat frame body from outside with the hat interposed therebetween. At least one of the left and right portions of the curved frame portion of the hat frame main body is provided with an elongated ridge projecting on the curved surface of the curved frame portion and extending in the depth direction of the hat, and the pressing mechanism is curved by the holding frame member. The cloth member of the hat fixed to the frame portion is pressed toward the curved frame portion at a position near the upper side of the ridge portion, so that the cloth member in the embroidery region of the hat is in a tight state without looseness.

According to a second aspect of the present invention, the same effect as in the first aspect is obtained, but the pressing mechanism includes a pressing member and a clamping means, and the pressing member presses the cloth member of the hat. Clamping means alternately switches the pressing member between a pressing position and a pressing release position. According to the hat frame for sewing machine of the third aspect, the same operation as that of the second aspect is achieved, but since the pressing mechanism is provided on the pressing frame member, the pressing mechanism becomes an obstacle when the hat is set on the hat frame body. There is no.
In the hat frame for a sewing machine according to the fourth aspect, the same operation as that of the second aspect is achieved, but since the clamp means is formed by a toggle clamp mechanism, it can be strongly pressed by a toggle clamp having a simple and small structure.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. This embodiment is an example in which the present invention is applied to a hat frame device for embroidering a hat with a multi-needle embroidery sewing machine of a multi-head embroidery machine. In the multi-head embroidery machine SM, as shown in FIG. 1, a substantially rectangular sewing machine support plate 2 extending in the left-right direction is disposed on the rear side of the upper surface of the embroidery machine base frame 1 extending in the left-right direction (X-axis direction). And three multi-needle embroidery machines M1 to M3 having the same structure are provided on the sewing machine support plate 2.
Are arranged side by side.

In each of these embroidery sewing machines M1 to M3, at the front end of the arm portion 3, 12 needle bars are supported so as to be vertically movable, and 12 needle bars 9 are swingably supported. Cases 7 are respectively supported so as to be horizontally movable in the left-right direction. On the other hand, a pillar 4 is connected to the arm 3, and a bed body 5 connected to a lower end of the pillar 4 is fixed on the sewing machine support plate 2, and a cylinder bed 6 is connected to the front end of the bed 5. The front end (front end) of the cylinder bed 6 extends forward and is provided with a thread catcher and the like.

As shown in FIG. 1, a sewing needle 8 is attached to the lower end of each needle bar, and twelve sewing needles 8 are provided with embroidery threads of 12 colors from 12 thread stands 11 of a thread stand 10. The needle bar case 7 is supplied in the left and right directions, and the needle bar case 7 is moved in the left-right direction so that one desired sewing needle 8 is inserted into the needle hole 12 (FIG.
1) by switching to the sewing position opposite to the needle bar.
When one is selected, the needle bar and the balance 9 connected to the needle bar are selected.
Only the embroidery stitch is formed with the embroidery thread of the selected color by the cooperation of the needle 8 of the needle bar and the thread wheel catcher. An upper shaft for moving the needle bar and the balance 9 up and down and a lower shaft for rotating the thread catcher are connected to a V motor connected to a sewing machine motor.
It is driven by a drive shaft 18 that is rotationally driven by a belt 17.

On the front side of the sewing machine support plate 2, there is provided a work table 13 which can be raised to the same height as the upper surface of the cylinder bed 6. The work table 13 and the work table 13 are provided on both left and right sides of the work table 13. A movable frame 16 extending in the left-right direction over the pair of auxiliary tables 14 and 15
Is placed. The drive frame 16a at the right end of the movable frame 16 is driven to move in the X-axis direction by an X-axis drive mechanism (not shown), and the drive frame 16b and the drive frame 16a at the left end of the movable frame 16 are connected to the Y-axis. Drive mechanism (not shown) allows Y
It is driven to move in the axial direction (front-back direction). In this way, the movable frame 16 is moved to the table 1 by the X-axis drive mechanism and the Y-axis drive mechanism.
3 to 15 are independently driven to move in the X-axis direction and the Y-axis direction.

Next, a description will be given of a cap frame device attached to each embroidery sewing machine. This hat frame device 20 is capable of sewing embroidery on the front part and both right and left sides of the hat,
Various measures have been taken for that purpose. As shown in FIGS. 2 and 3, the cap frame device 20 includes a guide shaft 21 extending in the Y-axis direction.
A base frame 30 movably mounted on the guide shaft 21 in the Y-axis direction, and a rotation restricting mechanism (not shown) for restricting the rotation of the base frame 30 around the guide shaft 21.
A rotation frame 40 rotatably mounted on the base frame 30 about an axis parallel to the guide shaft 21, and a hat frame 80 removably mounted on the rotation frame 40. A hat frame 80 on which a hat is mounted at the preparation station, a rotating mechanism 50 for rotating the rotating frame 40 and the hat frame 80, and a lower end of the movable frame 16 disposed below the X-direction frame 16 c. And a connecting mechanism 60 that operatively connects the base frame 30 to the Y-axis feed member 28 that is moved and driven only in the Y-axis direction by the Y-axis driving mechanism.

The guide shaft 21 is removably mounted from the front in a horizontal mounting hole 22 formed in the bed body 5 at the base end side of the cylinder bed 6 and oriented in the Y-axis direction.
At 3, it is releasably fixed to the bed body 5. A lower portion of the base frame 30 is formed with a pivot support tube portion 31 which is slidably fitted on the guide shaft 21. The base frame 30 has three arm portions 30a, 30 each having a Y shape in a front view.
a, 30b are formed, and a pair of roller members 32, 33 for rotatably supporting the rotating frame 40 from inside and outside are provided at the upper end of the pair of upper arms 30a, respectively. ing. However, the position of the outer roller member 33 can be adjusted in the radial direction with respect to the inner roller member 32 via an eccentric mechanism. The locking member 34, which is substantially L-shaped in side view, is fixed to the pair of arm portions 30a via shaft members of the roller members 32 and 33.

Next, the rotation restricting mechanism will be described. A key member 25 extending in the Y-axis direction is fixed to the lower surface of the cylinder bed 6, and a groove that slidably engages with the key member in the front-rear direction and restricts rotation of the base frame 30 on the base frame 30. The shape member is fixed, and the base frame 30 is fixed.
Is restricted so as not to rotate around an axis parallel to the Y axis, and is movable only in the Y axis direction along the guide shaft 21.

Next, the rotating frame 40 will be described. The rotating frame 40 has an annular portion 41 having a circular cross section,
A cap frame support portion 42 having a semicircular cross section extending forward from the upper half portion of the annular portion 41 by a predetermined length is provided, and the outer roller member 3 of the roller members 33 is provided on the outer peripheral portion of the annular portion 41.
A roller groove 43 in which the roller 3 is fitted and rolls is formed, and a wire guide portion 44 for guiding the wire 53 of the rotating mechanism 50 is formed in the outer peripheral portion of the annular portion 41. The lowermost portion at the center of the annular portion 41 is slidably engaged with and guided by the guide portion 34 at the lower end of the lower arm portion 32b of the base frame 30. The outer peripheral portion of the annular portion 41 has a hat frame support portion. Four engaging rollers 45 which engage with the engaging holes 88 of the cap frame 80 which is fitted to the outer shape of the cap frame 42 and detachably hold the cap frame 80 to the rotating frame 40 are elastically biased by spring members. It is provided.

Next, the rotation mechanism 50 will be described. The rotating mechanism 50 is provided at the rear end side of the movable frame 16 in the X-direction frame portion 1.
A pair of left and right mounting plates 51 fixed to the upper surface of 6c at right and left at predetermined intervals, and a rod 52 connecting the two mounting plates 51
And one wire 53. Each mounting plate 51 is fixed with two screws 54 and a screw 55 with a knob. The left end of the wire 53 is connected to a bracket fixed to the left mounting plate 51, and the wire 53 makes one round clockwise from the upper side along the wire guide portion 44 of the rotating frame 40, and the right end of the wire 53 moves to the right. It is connected to a fitting fixed to the mounting plate 51. Incidentally, one portion of the wire 53 may be fixed to the lower portion of the rotating frame 40.

Therefore, the X-direction frame 16 together with the movable frame 16
When c is driven to move to the left, the rotating frame 40 is rotated about 60 degrees from the neutral position in the counterclockwise direction around the axis of the annular portion 41 in FIG. 16
When c is driven to move rightward, the rotating frame 40 is rotated about the axis of the annular portion 41 clockwise by about 60 degrees from the neutral position. The rotation angle of the rotation frame 40 is
It is proportional to the amount of movement of the X-direction frame 16c in the left-right direction.

Next, the connecting mechanism 60 will be described. As shown in FIG. 3, the connecting mechanism 60 includes a connecting member 61 that connects the Y-axis feed member 28 to the base frame 30, and a connecting member 61 that is attached to the connecting member 61.
8 and a clamp which is fixed to the fixing unit so as to be releasable. The connection mechanism 60 is configured to be switchable between a fixed position and a fixed release position via an operation lever 70 of the clamp.
And the rotation frame 40, and can be separated from the Y-axis feed member 28.

Next, the hat frame 80 will be described.
As shown in FIGS. 2 to 6, the hat frame 80 is a curved hat frame main body 81 that is detachably attached to the rotating frame 40.
And a holding frame member 82 which is detachably fixed to the hat frame main body 81 from outside with the hat 200 interposed therebetween. The hat frame main body 81 includes a hat frame support portion 42 of the rotating frame 40.
Mounting frame portion 84 having an approximately 180-degree cross section and being fitted to the outside
A curved frame portion 85 extending forward from the front end of the mounting frame portion 84 by a predetermined length; a flange portion 86 attached to the mounting frame portion 84; and a fixing frame portion fixed to the flange portion 86. 8
An eaves support member 87 or the like that rises obliquely rearward from the uppermost center of 4 is provided.

The mounting frame portion 84 is formed with four engaging holes 88 for engaging the four engaging rollers 45 provided on the rotating frame 40, respectively. The cap frame 80 is detachably fixed to the rotating frame 40 by engaging with the holes 88 respectively. Curved frame 85
Are provided for fitting the hat 200 and its sweat-absorbing portion 202 in an external fitting manner. A curved slit 89 for releasing the cloth member at the base of the eave 201 of the hat 200 is provided at the rear of the curved frame portion 85. And the curved frame 85 has slits 89.
A needle passing opening 90 whose development shape is substantially rectangular is formed on the front side of the head 200, and four sides on the outer peripheral side of the embroidery area of the hat 200 are supported on four sides on the outer peripheral side of the needle passing opening 90. A support frame portion, which is a support frame portion including a rear support frame portion 98, a left support frame portion, a right support frame portion, and a front support frame portion 99, is formed.

Further, as shown in FIGS. 4 to 6, 8 and 9, support pieces 92 projecting to the needle passage opening 90 are integrally formed at the left end and right end of the support frame. Each support piece 92 is provided with a ridge 93 projecting on the curved surface of the curved frame 85 and extending in the front-rear direction.
Is made of a thin metal plate, the folded portion of the ridge 93 is fixed to the back surface of the support piece 92 with a screw 94, and the flat plate portion 93 a is a nut
Has been fixed through. However, the protrusion 93 may be fixed to the support piece 92 so as to be positionally variable in the front-rear direction.

A pair of left and right cutouts 87b are formed at the upper end 87a of the eaves support member 87 to hang a rubber cord 97 for urging and restraining the eaves 201 of the hat 200 rearward.
The left and right ends of the rubber string 97 are detachably connected to the notches of the flange 86. On the front surface of the base of the eaves support member 87, a receiving member 91 for receiving the central portion on the inner surface side of the base end of the eaves 201 from behind is fixed.

The holding frame member 82 will be described. As shown in FIGS. 4 to 7, the holding frame member 82 is detachably fixed to the support frame portion of the curved frame portion 85 of the hat frame main body 81 from outside by sandwiching the front side portion of the hat 200 and portions near both sides thereof. This is a flexible structure. The holding frame member 82 has a needle passage opening similar to the needle passage opening 90 corresponding to the embroidery area of the hat 200. The holding frame member 82 has a holding member for holding four sides on the outer peripheral side of the embroidery area. A frame, from the outside of the hat frame to the support frame of the hat frame body 81.
A pressing frame portion that overlaps with 0 is formed. The holding frame portion includes a rear holding frame portion 100 and a left holding frame portion 101.
, And a right holding frame 102 and a front holding frame 103. The front holding frame portion 103 is provided with other holding frame portions 100.
And a pair of left and right extension portions 103 which are formed separately from the left and right holding frames 102 and overlap the left holding frame 101 and the right holding frame 102.
The elongated portions 103a have long holes 104 formed in the front-rear direction.

At the right end of the holding frame member 82, a connecting pivoting mechanism 1 for rotatably connecting the right end to the hat frame body 81.
10 and a pressing mechanism 120 for pressing the cloth member of the hat 200 toward the curved frame 85 at a position near the upper side of the right ridge 93 of the hat frame main body 81 are provided as follows. That is, as shown in FIGS. 5 to 8 and 9, a support plate 111, a sandwiching plate 112 on the outer surface thereof, and a connection plate 113 are provided at the right end of the holding frame member 82. A rear end portion of the pivot shaft 115 in the front-rear direction inserted into the pair of lower front and rear pivot portions 114 is fixed to the mounting frame portion 84 of the cap frame main body 81.

The right end of the holding frame member 82 (the right holding frame 1
02 and an extension 103 at the right end of the front holding frame 103
a) shows the supporting plate 111, the holding plate 112, and the connecting plate 113;
It is sandwiched between and fixed with screws 116 and 117 with knobs. However, the position of the right holding frame 102 integral with the rear holding frame 100 is fixed by a screw 117 with a knob so that the position of the right holding frame 102 cannot be adjusted. In order to adjust the position, the extension 103a of the front-side holding frame 103 is fixed with a knob screw 116 so that the position can be adjusted in the front-rear direction through the elongated hole 104.

The pressing mechanism 120 comprises a toggle clamp 121 attached to the outer surface of the connecting plate 113 and a pressing member 122 fixed to an output portion thereof.
Reference numeral 22 denotes a rod having a predetermined thickness and extending in the front-rear direction. A bolt 123 fixed to the pressing member 122 is inserted into an output portion of the toggle clamp 121, and is fixed by a pair of nuts 124 so that the position can be changed. I have. The toggle clamp 121 enters the unlocked state when the operation lever 121a is pulled outward, and enters the fixed state when the operation lever 121a is pressed inward.

At the left end of the holding frame member 82, a connecting fitting 1 for connecting the left end to the hat frame main body 81 so as to be freely released.
30 and a pressing mechanism 120 for pressing the cloth member of the hat 200 toward the curved frame 85 at a position near the upper side of the ridge 93 on the left side of the hat frame main body 81 are provided as follows. As shown in FIG. 6, FIG. 7, and FIG.
At the left end of the support plate 131, the holding plate 13 on the outer surface thereof
2 and a connecting plate 133 are provided. A pair of front and rear connecting fittings 130 is attached to a lower portion of the connecting plate 133, and is connected to the mounting frame portion 84 of the cap frame body 81 and extends forward. A pair of front and rear engagement pieces 135 corresponding to the pair of connection fittings 130 are fixed to 134.

One end of each connection fitting 130 is connected to the connection plate 13.
3 and an operating lever 136
36, a frame-shaped link 137 pivotally mounted in the middle of the frame 36. The frame-shaped link 137 is engaged with the engagement piece 135 and the operation lever 136 is fastened upward to be connected in a fastening manner. ing. The left end portion of the holding frame member 82 (the left holding frame portion 101 and the extension 103a of the left end portion of the front holding frame portion 103) are sandwiched between the support plate 131, the sandwiching plate 132, and the connecting plate 133, and a screw 138 with a knob is provided. , 139
It is fixed at. However, the position of the left holding frame 101 integrated with the rear holding frame 100 is fixed by a screw 139 with a knob so that the position thereof cannot be adjusted. In order to adjust the position, the extension 103a of the front holding frame 103 is fixed with a knob screw 138 so that the position can be adjusted in the front-rear direction via the elongated hole 104. Since the pressing mechanism 120 has a symmetrical structure with the pressing mechanism 120 on the right side, the same members are denoted by the same reference numerals and description thereof is omitted.

Next, the hat frame 80 of the hat frame device 20 will be described.
The operation of will be described. At an external preparation station, the hat 200 is mounted on the hat frame 80 in advance. In this case, the cap frame main body 81 is fixedly supported by the external cap frame set frame, and the holding bracket 130 of the holding frame member 82 is removed to hold the cap. The frame member 82 is opened rightward and the left and right toggle clamps 121 are switched to the released state. Next, the cap 20 is placed on the curved frame 85 of the cap frame body 81.
Then, the cover frame member 82 is set from the outside of the cap 200 to the outside fitting shape with the cap 200 sandwiched between the outside of the curved frame section 85 from the outside of the cap 200. Then, after adjusting the position / shape of the cap 200 and the position of the holding frame member 82 so as to be at predetermined positions, the pair of connection fittings 130 of the holding frame member 82 are engaged with the corresponding engagement pieces 135 respectively. And fasten.

In this state, as shown in FIG. 8, the cloth member of the hat 200 is positioned outside the left and right ridges 93 and is fixed by the holding frame member 82. Next, when the toggle clamps 121 of the left and right pressing mechanisms 120 are switched to a fixed state, as shown in FIGS. 200 cloth members are curved frame portions 85
Since the fabric member in the embroidery area is not loosened, the fabric member in the embroidery area is in a stretched state because it is more strongly attracted to the side.

Thereafter, the hat frame 80 with the hat 200 mounted thereon
Is removably mounted on the rotating frame 40 of the hat frame device 20 attached to the embroidery sewing machine, embroidery is performed on the embroidery area on the front part of the hat 200, and then the hat frame 80 with the hat 200 mounted is rotated. Remove from frame 40.

Here, when the cap 200 is mounted on the cap frame 80, the cloth member of the cap 200 fixed to the cap frame main body 81 by the pressing frame member 82 is separated by the left and right ridges 93 and the left and right pressing mechanisms 120. The embroidery pattern applied to the hat 200 is formed in a desired pattern without being distorted because the embroidery pattern applied to the hat 200 does not become distorted because it can be strongly pulled and tightened in a stretched state without looseness. Further, since the embroidery is performed while the embroidery area of the hat 200 is held in the desired shape, there is no problem that the embroidery area of the hat 200 does not restore to the desired shape after the embroidery sewing.

Moreover, the pressing member 122 of the pressing mechanism 120
Is configured to be selectively switched between the pressing position and the pressing release position by the toggle clamp 121, so that the operation of pressing and releasing can be simplified, and the compact and simple structure of the toggle clamp 121 allows for strong pressing. can do. Further, since the pressing mechanism 120 is provided on the holding frame member 82, the mounting of the hat 200 on the hat frame main body 81 does not hinder the pressing mechanism 120. Further, since the pressing member 122 is attached to the output portion of the toggle clamp 121 so as to be changeable in position, the position of the pressing member 122 can be adjusted according to the thickness of the cloth member of the hat 200.

Next, another embodiment in which the above embodiment is partially modified will be described. 1) The pressing member 122 of the pressing mechanism 120 may be constituted by a solid member, or the projecting amount of the pressing member 122 may be constituted to be larger than the projecting amount of the embodiment. Further, the pressing member 122 may be formed integrally with the output portion of the toggle clamp 121. Further, a clamp having a mechanism different from that of the toggle clamp 121 may be applied.

2) The connecting pivot mechanism 110 at the right end of the holding frame member 82 is omitted, the right end of the holding frame member is configured symmetrically with the left end, and the right end of the holding frame member 82 is the same as the left end. Alternatively, a pair of connecting fittings 130 may be configured to be connected to the hat frame main body 81 so as to be freely released. 3) The present invention should not be construed as being limited to the above-described embodiment, and the mechanism of each part of the above-described embodiment may be replaced with existing technology or a person skilled in the art without departing from the technical idea of the present invention. Various changes may be made based on the technology described in the above.

[0038]

According to the hat frame for a sewing machine of the first aspect,
In a hat frame provided with a hat frame body and a holding frame member, at least one of a left side portion and a right side portion of the curved frame portion of the hat frame body projects on a curved surface of the curved frame portion and is elongated in a depth direction of the hat. A pressing mechanism is provided to press the cloth member of the cap fixed to the curved frame portion by the holding frame member toward the curved frame portion at a position near the upper side of the projected portion, so that the projected portion and the pressing mechanism are provided. Thereby, the cloth member in the embroidery area of the hat can be made tight without looseness. As a result, problems such as distortion of the embroidery pattern applied to the hat frame and the failure of the embroidered cloth member to restore the desired shape can be solved.

In the hat frame for a sewing machine according to the second aspect, the same effect as that of the first aspect is obtained, but the pressing mechanism includes a pressing member for pressing the cloth member of the hat, and a pressing position and a pressing release position for pressing the pressing member. And the clamping means for selectively switching the pressure and the pressure, the operation of pressing and releasing the pressing by the pressing mechanism is simplified.

According to the third aspect of the present invention, the same effect as in the second aspect is obtained, but since the pressing mechanism is provided on the holding frame member, the pressing mechanism hinders the setting of the hat on the hat frame body. Never be. In the sewing machine cap frame of the fourth aspect, the same effect as that of the second aspect is obtained,
Since the clamping means comprises a toggle clamp mechanism,
It can be pressed strongly by a toggle clamp having a simple and small structure.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a multi-head embroidery machine according to an embodiment of the present invention.

FIG. 2 is a perspective view of the hat frame device mounted on the embroidery sewing machine of FIG. 1 in a state where a hat frame is not mounted.

FIG. 3 is a side view of the hat frame device of FIG. 2;

FIG. 4 is a front view of the hat frame shown in FIG. 2;

FIG. 5 is a side view of the hat frame of FIG. 2;

FIG. 6 is a developed plan view of the hat frame device.

FIG. 7 is a developed plan view of a holding frame member.

FIG. 8 is a front view of a main part of the pressing frame member of the cap frame device before the right end side pressing mechanism is operated.

FIG. 9 is a front view of a main part of the pressing frame member of the hat frame device after the right end side pressing mechanism is operated.

FIG. 10 is a front view of the main part after the left end side pressing mechanism of the pressing frame member of the hat frame device is operated.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 20 Hat frame apparatus 40 Rotating frame 80 Hat frame 81 Hat frame main body 82 Holding frame member 84 Mounting frame part 85 Curved frame part 93 Projection part 120 Pressing mechanism 121 Toggle clamp 122 Pressing member

Continuation of the front page (56) References JP-A-2-104760 (JP, A) JP-A-2-251661 (JP, A) JP-A-1-239151 (JP, A) JP-A-7-324274 (JP) , A) Japanese Patent Publication No. 64-496 (JP, B2) Japanese Patent Publication No. 51-11555 (JP, B2) Japanese Patent Publication No. 3-46155 (JP, B2) Japanese Utility Model Publication No. 6-1115 (JP, Y2) (58) Field surveyed (Int. Cl. ⁷ , DB name) D05C 9/00-9/22 D05B 39/00

Claims (4)

(57) [Claims] 1. A hat frame of a hat frame device for a sewing machine, comprising: a curved mounting frame portion for mounting to a rotating frame of the hat frame device; Frame body having an opening for use and a curved frame portion for setting the hat in an externally fitted state, and a presser detachably fixed to the curved frame portion of the hat frame body from the outside with the hat interposed therebetween. In a hat frame for a sewing machine provided with a frame member, at least one of a left side portion and a right side portion of the curved frame portion of the hat frame main body, a protruding ridge portion that protrudes onto a curved surface of the curved frame portion and is elongated in a depth direction of the hat. And a pressing mechanism for pressing a cloth member of the hat fixed to the curved frame portion by the holding frame member toward the curved frame portion at a position near the upper side of the ridge portion. frame. 2. The pressing mechanism according to claim 1, further comprising a pressing member that presses the cloth member of the hat, and a clamp that selectively switches the pressing member between a pressing position and a pressing release position. Item 2. A hat frame for a sewing machine according to Item 1. 3. The cap frame for a sewing machine according to claim 2, wherein the pressing mechanism is provided on a holding frame member. 4. A hat frame for a sewing machine according to claim 2, wherein said clamp means comprises a toggle clamp mechanism.