JPH11229262A - Embroidery frame fitting structure in embroidery apparatus, embroidering frame and sewing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve operability of a fitting operation or a take off operation of an embroidery frame, and prevent simple slip off of the embroidery frame except for the take off operation. SOLUTION: This embroidery frame fitting structure has a pair of flanged pins 16 in a bracket 16 of a frame driving mechanism for transfer-driving an embroidery frame 12. A first notched part 10a and a second notched part 20b connecting to the first notched part 20a are formed on a fitting plate 20 of the embroidery frame 12, a notched depressed part 12b is formed in the frame 12 and a fitting depressed part 22 titled in a tilting direction S is formed with the first notched part 20a and the notched depressed part 12b, and a broad fitting depressed part 23 for guiding is formed with the second notched part 20b and the notched depressed part 12b. The flanged pin 16 is opposed to the broad fitting depressed part 23 and the embroidery frame 12 is pushed from upward to downward and from the front side to the inter side, then the flanged pin 16 can readily be set to the fitting depressed part 22 through the broad fitting depressed part 23. When the front end part of the embroidery frame 12 is pushed downward, a transfer locus P of the flanged pin 17 in rear side differs from the tilting direction S, and therefore, the flanged pin 17 is not slipped off from the fitting depressed part 22.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embroidery frame mounting structure for an embroidery apparatus, an embroidery frame, and a sewing apparatus. The present invention relates to a technique for preventing the embroidery frame from being detached from the drive output unit even when a part of the embroidery frame which has protruded from the unit is erroneously pressed downward.

[0002]

2. Description of the Related Art Conventionally, as an embroidery device or a sewing device, in a home electronically controlled embroidery sewing machine, the RO of a control device is used.
In the pattern data memory provided in M (non-volatile memory), pattern data of practical patterns such as straight stitches and zigzag stitches, character patterns such as hiragana and katakana, and a plurality of output patterns such as animals and flowers are stored in advance. When sewing the embroidery pattern, the embroidery frame to which the work cloth is attached is first attached to the mounting bracket connected to the drive output unit of the frame drive mechanism, and the desired embroidery pattern is displayed on the display. By operating the sewing start switch, the sewing machine motor and the drive motor of the frame drive mechanism are driven, and the selected pattern is sewn while the embroidery frame moves in two orthogonal directions. ing.

FIG. 9 shows a mounting structure for mounting an embroidery frame on a mounting bracket connected to the drive output section.
Explained based on, provided in the bed unit 102,
A pair of horizontally oriented flanged pins 117 having flanges at their ends are fixed to mounting brackets 116 of a frame drive mechanism (not shown) for driving the embroidery frame 112 at predetermined intervals. On the other hand, a vertical engaging plate 120 is fixed to an end surface of the mounting portion of the embroidery frame 112 with a screw.
20, so as to correspond to a pair of flanged pins 117,
A first notch portion 120a and a second notch portion 120b connected to the lower end are formed, and the embroidery frame mounting portions corresponding to the two notch portions 120a and 120b have notch recesses having an open lower end. 112b is formed.

That is, the first notch 120a and the notch recess 112b form an engagement recess 122 which is a T-shaped groove having an open lower end.
Are formed, and the second notch 120b and the notch recess 112 are formed.
and b form a wide engaging recess 123. And
The engaging recess 122 engages with the flanged pin 117 when the embroidery frame 112 is pushed downward from above,
It is formed in the vertical direction facing the vertical direction.

That is, as shown in FIG.
Is held down in a substantially horizontal position, the flanged pin 117 is first engaged with the wide-width engaging recess 123, and then pushed downward, whereby the flanged pin 117 is pressed.
The embroidery frame 112 is guided by the wide engaging recess 123 and is engaged with the engaging recess 122, so that the embroidery frame 112 can be detachably mounted on the mounting bracket 116. At this time, one end of the detachment preventing leaf spring 125 attached to the mounting bracket 116 is engaged with the ridge 112c provided on the embroidery frame 112, so that the engagement of the embroidery frame 112 with the mounting bracket 116 is maintained. . On the other hand, the embroidery frame 112
When the embroidery frame 112 is to be removed, the embroidery frame 112 is lifted upward while pressing the detachment-preventing leaf spring 125 with the finger on the detached side, so that the embroidery frame 112 can be easily detached.

[0006]

In the conventional embroidery frame mounting structure, as shown in FIG. 9, the embroidery frame 112 is pushed downward from above to thereby open the lower end of the embroidery frame 112 and open the lower end vertically. The embroidery frame 112 is engaged with a pair of engaging recesses 122 each formed of a directional T-shaped groove and engaging with a horizontally oriented flanged pin 117 provided on a mounting bracket 116 connected to the drive output unit. Mounting bracket 11
6, the embroidery frame 112 as shown in FIG.
When the rear end of the embroidery frame 112 is at the moving position protruding from the bed portion 102 and the rear end of the embroidery frame 112 is pressed down by mistake, the embroidery frame 112 has a rear flange according to the principle of leverage. With the pin 117 as the center of rotation, the pin 117 is inclined as shown by a two-dot chain line.

That is, the tangential direction of the arc-shaped movement trajectory P of the front flanged pin 117 with respect to the engaging recess 122 at the start of the movement substantially coincides with the vertical direction G of the engaging recess 122, and the disengagement preventing leaf spring is used. At 125, the embroidery frame 112 is elastically urged so as not to come off, but when its spring force is weak, the embroidery frame 112 is greatly inclined as shown by the two-dot chain line against the urging of the spring. There is a problem that it easily comes off from. Therefore, it is conceivable to increase the spring force of the detachment preventing leaf spring 125 to make it difficult to detach. However, when the embroidery frame 112 is attached, there is a problem that it becomes difficult to attach the embroidery frame 112 and the operability is poor.

Further, since the engaging recesses 122 formed in the embroidery frame 112 are oriented vertically, the operator can extend the embroidery frame 112 upward with the hand extended forward when mounting the embroidery frame 112. While pushing downward from
Similarly, when the embroidery frame 112 is removed, the hand is extended forward and the embroidery frame 112 is lifted upward.
There is a problem that the operability of the mounting operation and the removing operation of the twelfth embodiment is poor. SUMMARY OF THE INVENTION It is an object of the present invention to improve the operability of the mounting and removing operation of the embroidery frame, and to prevent the embroidery frame from being easily removed except for the removing operation.

[0009]

According to a first aspect of the present invention, there is provided an embroidery frame mounting structure for an embroidery apparatus, comprising: an embroidery frame for mounting a work cloth to be used for embroidery; a frame drive mechanism for moving and driving the embroidery frame; In an embroidery apparatus having a sewing mechanism for performing sewing, an embroidery frame mounting structure for detachably mounting the embroidery frame on the drive output section of the frame drive mechanism is provided on one of the drive output section and the embroidery frame. And at least one engaging concave portion provided on the other of the drive output portion and the embroidery frame for relatively moving the engaging convex portion in a substantially vertical direction for engagement. The mating recess is formed so as to be inclined with respect to the vertical direction on a vertical plane perpendicular to the axis of the engaging protrusion.

One of the drive output section and the embroidery frame is provided with at least one engaging projection in a horizontal direction, and the other of the drive output section and the embroidery frame is provided with an engagement projection in a substantially vertical direction. At least one engaging concave portion is provided for relative movement and engagement. The engaging concave portion is formed so as to be inclined with respect to a vertical direction on a vertical plane perpendicular to the axis of the engaging convex portion. Even when a part of the embroidery frame protruding from the portion is pressed downward, the embroidery frame is less likely to come off due to the engagement between the engagement projection and the inclined engagement recess.

According to a second aspect of the present invention, in the embroidery frame mounting structure of the first aspect, the engaging concave portion is formed by engaging the embroidery frame when pushing the embroidery frame downward from above and from the near side to the far side. It is characterized in that it is formed so as to face the inclined direction to engage with the portion. In this case, the direction of the engaging concave portion is formed in the inclined direction in which the engaging concave portion is engaged when the embroidery frame is pushed downward from above and from the near side to the far side. The embroidery frame can be attached to the drive output section by pushing it downward from above and from the near side to the back side, and can be easily removed simply by pulling the embroidery frame upward from below and from the back side to the front side. Other operations are the same as those of the first aspect.

According to a third aspect of the present invention, in the embroidery frame mounting structure of the embroidery apparatus according to the first or second aspect of the present invention,
A flanged pin provided on a mounting bracket fixed to the drive output portion and having a flange at a tip portion, wherein the engaging recess is formed in an embroidery frame and is a T-shaped groove having an open bottom end. It is. In this case, the engaging convex portion is formed by a flanged pin, and the engaging concave portion is formed in the embroidery frame and is formed by a T-shaped groove having an open lower end. The embroidery frame is positioned in the vertical direction by abutting from below, and the flange is engaged with the vicinity of the T-shaped groove from the inside to position the embroidery frame in the left-right direction. Other operations are the same as those of the first or second aspect.

According to a fourth aspect of the present invention, in the embroidery frame mounting structure of the embroidery device, a wide engaging concave portion for guiding is formed to be continuous with a lower end of the engaging concave portion. In this case, since the wide engaging concave portion is formed at the lower end of the engaging concave portion, the engaging convex portion is first engaged with the wide engaging concave portion and pushed in when mounting the embroidery frame. Thus, the engaging projections are guided by the wide engaging recesses, and can finally be reliably engaged with the engaging recesses. Other effects are the same as those of the third aspect.

According to a fifth aspect of the present invention, in the embroidery frame mounting structure of the embroidery apparatus according to any one of the first to third aspects, a plurality of the engaging projections are provided, and a plurality of the engaging projections are provided. A large number of engaging concave portions are provided, and a plurality of mounting positions for mounting the embroidery frame with respect to the drive output portion can be set. In this case, since a plurality of engagement recesses that are larger than the number of the engagement projections are provided, the engagement recesses for engaging the engagement projections are switched,
By setting a plurality of mounting positions of the embroidery frame with respect to the drive output unit, a plurality of embroidery areas can be provided in the embroidery frame.

Further, depending on the engaging concave portion for engaging the engaging convex portion, the embroidery frame may protrude greatly from the bed portion. By pressing a part of the protruding embroidery frame downward, the embroidery frame is According to the principle of leverage, when the engaging protrusion on the pressing side is inclined to relatively move away from the corresponding engaging recess with the engaging protrusion on the pressing side as the center of rotation, it moves in the separating direction. Since the direction of the movement locus in the vertical direction at the start of the movement of the engaging protrusions to be engaged is different from the inclination direction of each engaging recess with respect to the vertical direction, the engaging protrusion away from the engaging recess is inclined. As a result, the embroidery frame can be reliably prevented from coming off the drive output unit. In addition, the same operation as any one of the first to third aspects is achieved.

According to a sixth aspect of the present invention, in the embroidery frame mounting structure of the embroidery apparatus according to any one of the first to third aspects, the plurality of engagement recesses are provided, and the plurality of engagement recesses are larger than the plurality of engagement recesses. Are provided, and a plurality of mounting positions for attaching the embroidery frame to the drive output unit can be set. In this case, a plurality of engagement protrusions that are larger than the number of the engagement recesses are provided,
In addition, since each of the plurality of engagement recesses is formed in an inclined shape, the same operation as in claim 5 is achieved. Other claims 1-3
The same operation as in any one of the above is achieved.

An embroidery frame according to a seventh aspect of the present invention is an embroidery frame detachably mounted on a drive output section of a frame drive mechanism for moving and moving a work cloth used for embroidery in an embroidery apparatus. The at least one engaging protrusion in the orientation is provided with at least one engaging recess to be engaged through relative movement in a substantially vertical direction, and the engaging recess is a vertical surface orthogonal to the axis of the engaging protrusion. , Is formed to be inclined with respect to the vertical direction.

The embroidery frame is provided with at least one engagement recess, and the engagement recess is provided on a vertical plane perpendicular to the axis of at least one horizontal engagement projection formed on the drive output portion. Since the embroidery frame is formed so as to be inclined with respect to the vertical direction, the embroidery frame does not easily come off even when a part of the embroidery frame protruding from the bed portion is pressed downward.

In an embroidery frame according to an eighth aspect of the present invention, in the invention according to the seventh aspect, the engagement recess engages with the engagement projection when the embroidery frame is pushed downward from above and from the front side to the back side. It is characterized by being formed so as to be inclined. In this case, the direction of the engaging concave portion is formed in the inclined direction in which the engaging concave portion is engaged when the embroidery frame is pushed downward from above and from the near side to the far side. Acts similarly to 2. Other effects are the same as those of the seventh aspect.

According to a ninth aspect of the present invention, in the embroidery frame according to the seventh or eighth aspect, a plurality of the engaging projections are provided.
A plurality of engagement recesses, which are larger than the plurality of engagement protrusions, are provided, and a plurality of mounting positions for mounting the embroidery frame with respect to the drive output unit can be set. In this case, since a plurality of engagement recesses are provided, the number of which is greater than the number of engagement projections. Other effects are the same as those of the seventh or eighth aspect.

An embroidery frame according to a tenth aspect of the present invention is the embroidery frame according to any one of the seventh to ninth aspects, wherein a wide engaging recess for guiding is formed to be continuous with a lower end of the engaging recess. is there. In this case, in this case, since the wide-width engaging concave portion connected to the lower end of the engaging concave portion is formed, the same operation as in claim 4 is effected. In addition, the same operation as in any one of claims 7 to 9 is achieved.

According to an eleventh aspect of the present invention, in the sewing apparatus, a work cloth to be used for sewing is held in an embroidery frame, and the embroidery frame holding the work cloth and the sewing means are relatively moved to sew. At least one engaging projection is provided on one of the mounting portions for mounting the embroidery frame, and the embroidery frame is pressed obliquely from the near side to the rear side into the other of the embroidery frame and the mounting portion for mounting the embroidery frame. It is characterized in that at least one engaging concave portion engaging with the engaging convex portion is provided.

At least one engaging projection is provided on one of the embroidery frame and the mounting portion for mounting the embroidery frame, and the embroidery frame is pressed obliquely from the near side to the back side into the other of the embroidery frame and the mounting portion. The embroidery frame is attached to the drive output unit such that the embroidery frame is pushed downward from above and obliquely from the near side to the far side because at least one engaging concave portion that engages with the engaging convex portion is provided. The embroidery frame can be easily removed simply by pulling the embroidery frame upward from below and obliquely from the back to the front. Further, even when a part of the embroidery frame protruding from the bed portion is pressed downward, the embroidery frame does not easily come off.

According to a twelfth aspect of the present invention, in the sewing apparatus according to the eleventh aspect, a plurality of the engaging projections and the engaging recesses are provided. In this case, since a plurality of engaging projections and a plurality of engaging recesses are provided, when the embroidery frame greatly protrudes from the bed portion, a part of the protruding embroidery frame is pressed down. In accordance with the principle of leverage, the embroidery frame is tilted in a diagonal direction when the engaging projection on the pressing side is inclined about the rotation center of the engaging projection on the side opposite to the pressing side to separate from the corresponding engaging recess. Therefore, the embroidery frame can be reliably prevented from coming off the drive output section. Other effects are the same as those of the eleventh aspect.

[0025]

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 an electronically controlled embroidery sewing machine capable of sewing various embroidery patterns. An electronically controlled embroidery sewing machine 1 (corresponding to a sewing device) is, as shown in FIG.
And a pillar 3 erected from the right end of the bed 2 and an arm 4 extending leftward from the upper end of the pillar 3 so as to face the bed 2.

The bed 2 accommodates a feed dog vertical movement mechanism (not shown) for moving the feed dog up and down, a feed dog longitudinal movement mechanism (not shown) for moving the feed dog back and forth, and a lower thread bobbin, and cooperates with the sewing needle 6. A thread catcher (for example, a horizontal shuttle) is provided.
A needle bar drive mechanism for vertically moving a needle bar 5 having a sewing needle 6 attached to a lower end thereof, a needle bar swing mechanism (not shown) for swinging the needle bar 5 in a direction perpendicular to the cloth feeding direction, A balance driving mechanism (not shown) that moves the balance up and down while adjusting the vertical movement of the needle bar 5 is provided. On the head 4a of the arm 4,
Start / stop switch 7 for commanding start and stop of sewing work
Is provided. Here, the sewing means is constituted by a needle bar driving mechanism, a thread wheel catcher, and the like.

A large liquid crystal display 8 is provided on the front surface of the arm portion 4. On the liquid crystal display 8, various stitch patterns such as practical patterns and embroidery patterns and various messages are displayed. . On the front surface of the liquid crystal display 8, a touch panel (not shown) composed of a plurality of transparent electrodes and functioning as touch keys is provided for selecting a plurality of embroidery patterns displayed on the display 8.
A free bed, commonly called a free arm, is formed at the left end of the bed 2. A frame drive mechanism 10 for moving and driving the embroidery frame 12 is detachably mounted on the free bed.

This frame drive mechanism 10 is composed of a main body case 11
An embroidery frame 12 on which the work cloth W is detachably mounted, and a storage case 15 having a Y-direction drive mechanism for driving the embroidery frame 12 in the Y-direction (front-rear direction) via a mounting bracket 16.
An X-direction drive mechanism for driving the housing case 15 and a Y-direction drive mechanism therein in the X direction (left-right direction), the X-direction drive mechanism being housed in the main body case 11; Is driven by an X-direction drive motor (not shown), and the Y-direction drive mechanism is driven by a Y-direction drive motor (not shown). Here, the frame driving mechanism is configured by the X-direction driving mechanism, the Y-direction driving mechanism, and the like.

Next, the mounting structure of the embroidery frame 12 will be described.
This will be described with reference to FIGS. The distal end of the horizontal mounting bracket 16 connected to the drive output section of the Y-direction drive mechanism is exposed to the right from the housing case 15, and has a vertical pin mounting section 16a bent upward and formed. I have. The pin mounting portion 16a has a flange portion 17a at its tip.
The base ends of a pair of horizontally oriented flanged pins 17 each having a fixed position are fixed at predetermined intervals.

On the other hand, the embroidery frame 12 includes an outer frame portion 13 and an inner frame portion 14, and the work cloth W is sandwiched between the two frame portions 13, 14. Mounting part 12 for embroidery frame 12
As shown in FIG. 3, a strip-shaped engagement plate 20 long in the front-rear direction is disposed on the end surface of the “a” over substantially the entire surface, and is fixed by a plurality of screws 21. This engagement plate 2
At 0, a plurality of (for example, four) first notches 20a, which are a part of an oval, are formed at predetermined intervals.
At the lower end of each of the first notches 20a, there is formed a second notch 20b that is continuous with the second notch 20b and is wider than the first notch 20a.

Here, each of the first notches 20a is directed toward the inclined direction S in which the embroidery frame 12 is engaged with the flanged pin 17 when the embroidery frame 12 is pushed downward from above and from the near side to the far side. That is, in a vertical plane orthogonal to the axis of the flanged pin 17, the inclined direction S is formed to incline by a predetermined angle with respect to the vertical direction G in a side view shown in FIG. By the way, in a portion corresponding to the first notch 20a and the second notch 20b of the mounting portion 12a, the notch recess 12 having an open lower end is formed to receive the flange 17a of the flanged pin 17.
b are formed to be inclined in the inclination direction S, respectively.

That is, the first notch 20a and the notch recess 1
2b, an engagement recess 22 which is a T-shaped groove having an open lower end is formed. Further, the second notch 20b and the notch recess 12b form a wide engaging recess 23 for guiding. Attachment part 1 corresponding between the plurality of engagement recesses 22
Outwardly protruding ridges 12c are formed on the end face of 2a.

A base end of a disengagement-preventing leaf spring 25 formed by bending a spring member is fixed to the mounting bracket 16.
When the embroidery frame 12 is attached to the mounting bracket 16 by engaging the flanged pin 17 with the engagement recess 22, the engagement between the disengagement prevention leaf spring 25 and the ridge 12 c causes the embroidery frame 12 to engage. Are attached elastically so as not to come off from the mounting bracket 16. Next, an operation and an effect when the embroidery frame 12 is mounted on the mounting bracket 16 will be described. Here, a case will be described in which an embroidery area E is provided substantially at the center of the embroidery frame 12 as shown in FIG.

As shown in FIG. 4, the embroidery frame 12 is held in a substantially horizontal state, and a pair of flanged pins 17
After being horizontally moved to a position facing the two wide-width engaging recesses 23, the flanged pin 17 is first widened by pushing in the above-described inclination direction S, that is, from the upper side to the lower side and from the near side to the far side. The guide is guided by the engaging recesses 23 and finally engaged with the engaging recesses 22 as shown in FIG.

At this time, as described above, the detachment-preventing leaf spring 25 is securely engaged with the ridge 12c by its elastic deformation. That is, the pin portion 1 of the flanged pin 17
7b (see FIG. 3) abuts against the first notch 20a from below to position the embroidery frame 12 in the up-down direction, and the flange 17a engages with the vicinity of the first notch 20a from the inside. Together, the position of the embroidery frame 12 in the left-right direction is determined. In addition, the embroidery frame 12 is held in a substantially horizontal position because the pair of flanged pins 17 are engaged with the corresponding engagement recesses 22, respectively. Thus, the embroidery frame 12 can be easily attached to the mounting bracket 16 by pushing the embroidery frame 12 downward from above and from the front side to the back side.

On the other hand, when the embroidery frame 12 is removed, the engagement with the ridge portion 12c is released by elastically deforming the upper side of the detachment preventing leaf spring 25 in the disengaging direction.
The embroidery frame 12 can be easily removed simply by pulling the embroidery frame 2 upward from below and from the back side to the front side, and the operability of mounting and removing the embroidery frame 12 is improved. By the way, when the embroidery frame 12 is mounted on the mounting bracket 16 and the embroidery sewing is being performed, the front end portion of the embroidery frame 12 may largely protrude from the bed portion 2 to the near side as shown in FIG. is there.

At this time, when a part of the protruding embroidery frame 12 is erroneously pressed downward F, the embroidery frame 12 pivots the front flanged pin 17 located on the pressing side by the principle of leverage. When the rear-side flanged pin 17 is inclined to relatively move away from the engagement concave portion 22, the vertical movement trajectory P at the start of the movement of the flanged pin 17 moving in the separated direction is described. Direction and engagement recess 2
2 is different from the inclination direction S, the flanged pin 17 that separates from the engagement recess 22 is inclined by the first notch 20a.
And the rotation is restricted by reliably contacting the portion Q of
The embroidery frame 12 can be reliably prevented from coming off the mounting bracket 16.

On the other hand, as shown in FIG. 7, when the rear end portion of the embroidery frame 12 protrudes greatly from the bed portion 2 as shown in FIG. 7, a part of the protruding embroidery frame 12 is removed. When the embroidery frame 12 is similarly pressed downward F by mistake, the embroidery frame 12 similarly tilts with the rear flanged pin 17 as the center of rotation and the front flanged pin 17 relatively moving away from the engagement recess 22. The vertical movement trajectory P at the start of the movement of the flanged pin 17 moving in the separating direction
Is different from the inclination direction S of the engaging concave portion 22, the flanged pin 17 separated from the engaging concave portion 22 surely comes into contact with the inclined portion Q of the first notch portion 20a to restrict the rotation. As a result, the embroidery frame 12 can be reliably prevented from coming off the mounting bracket 16.

The embroidery frame 12 can be mounted on the mounting bracket 16 in a plurality of positions by switching the pair of flanged pins 17 provided on the mounting bracket 16 to engage with any of the plurality of engaging recesses 22. Embroidery frame 12
Can be provided with a plurality of embroidery areas (E1, E2). By the way, as shown in FIG. 8, the mounting structure of the embroidery frame 12 is configured such that the vertically oriented flanged pin 17 is engaged with the engagement concave portion formed so as to be pushed horizontally from the front side to the back side. You may comprise.

That is, a horizontal pin mounting plate 30 is fixed to one end of the embroidery frame 17A.
A pair of flanged pins 31 are vertically oriented and fixed at a predetermined interval. On the other hand, the main body case 1 of the frame drive mechanism 10A
A housing case 15A is provided movably in the left-right direction on 1A, and a mounting bracket 32 provided in the housing case 15A is provided.
Is formed on the outside of the housing case 15A with a horizontal engaging portion 32a formed to be bent in a crank shape on the upper side, and this engaging portion 32a has the same shape as the first cutout portion 20a of the embodiment. A pair of first notches 32b are formed at predetermined intervals, and are connected to the respective first notches 32b, and are second notches 32c similar to the second notches 20b of the embodiment, A second notch 32c for guiding is formed, which is wider than the first notch 32b.

Here, each first notch 32b is used to push the embroidery frame 12A horizontally and from the near side to the far side.
It is formed in an inclined shape in the inclined direction T that engages with the flanged pin 31. Thereby, the embroidery frame 12A is held in a substantially horizontal state, and the pair of flanged pins 31 is horizontally moved to a position opposed to the two second notches 32c, and then the embroidery frame 12A is oriented in the above-described tilt direction T. That is, by pushing horizontally and from the near side to the far side, the flanged pin 31 is first guided by the second notch 32c, and is finally securely engaged with the first notch 32b. At this time, the embroidery frame 12A
Is attached to the mounting bracket 32 by a leaf spring member (not shown).
Is engaged and held.

When removing the embroidery frame 12A,
The embroidery frame 12A can be easily removed simply by pulling the embroidery frame 12A horizontally and from the back side to the front side, and the operability of mounting and removing the embroidery frame 12A is improved.

Here, as a modification of the above embodiment,
A plurality of flanged pins may be mounted on the mounting portion 12 a of the embroidery frame 12, while the mounting bracket 17 may be provided with a plurality of inclined engagement recesses or wide engagement recesses inclined in the inclined direction S. Further, the embroidery frame 12 and the mounting bracket 17 may not be provided with the wide engaging recess 23 but may be provided only with the engaging recess 22. Further, the present invention should not be construed as being limited to the above-described embodiment, and existing controls or obvious to those skilled in the art may be applied to the shape and mechanism of each part of the above-described embodiment without departing from the technical idea of the present invention. Various changes may be made based on the control of. Further, it goes without saying that the present invention can be applied to embroidery frame mounting structures and embroidery frames of various embroidery devices.

[0044]

According to the first aspect of the present invention, the embroidery frame mounting structure is provided with at least one engaging projection provided in one of the drive output section and the embroidery frame and oriented in the horizontal direction, the drive output section and the embroidery frame. And at least one engaging concave portion, which is provided on the other of the engaging convex portions so as to relatively move the engaging convex portion in a substantially vertical direction to engage with the engaging convex portion. Since the embroidery frame is formed so as to be inclined with respect to the direction, even when a part of the embroidery frame protruding from the bed portion is pressed downward, the embroidery frame is formed through the engagement between the engagement convex portion and the inclined engagement concave portion. Is difficult to remove.

According to the second aspect of the present invention, the same effect as that of the first aspect is obtained, but the engaging concave portion is provided with a convex portion when the embroidery frame is pushed downward from above and from the near side to the far side. Since the embroidery frame is formed in the inclined direction that engages with the embroidery frame, the embroidery frame can be easily attached to the drive output unit by pushing the embroidery frame downward from above and from the near side to the back side. The embroidery frame can be easily removed simply by pulling the embroidery frame from the back side to the front side, and the operability of mounting and removing the embroidery frame is improved.

According to the invention of claim 3, claim 1 or 2
The same effect as that described above is obtained, but the engaging projection is a pin with a flange provided on a mounting bracket fixed to the drive output unit and having a flange at the tip, and the engagement recess is formed in the embroidery frame. Since the T-shaped groove is open at the lower end, the pin portion of the pin with a flange abuts on the T-shaped groove from below so that the vertical position of the embroidery frame can be positioned, and the flange is located inside the vicinity of the T-shaped groove. And the left and right positions of the embroidery frame can be determined.

According to the fourth aspect of the present invention, the same effect as in the third aspect is obtained, except that a wide-width engaging concave portion for guiding which is continuous with the lower end of the engaging concave portion is formed, so that the embroidery frame can be attached to the mounting bracket. At the time of mounting, the engaging convex portion is first engaged with the wide engaging concave portion and pushed in, and the engaging convex portion is guided by the wide engaging concave portion, and is finally securely engaged with the engaging concave portion. be able to.

According to the fifth aspect of the present invention, the same effects as in any one of the first to third aspects are obtained, but a plurality of the engaging convex portions are provided, and the plurality of engaging convex portions are provided. Since a large number of engagement recesses are provided, and a plurality of mounting positions for mounting the embroidery frame with respect to the drive output unit can be set, a plurality of embroidery areas can be provided in the embroidery frame.
Also, depending on the mounting position of the engaging convex portion to the engaging concave portion, the embroidery frame may greatly protrude from the bed portion, and even if a part of the protruding embroidery frame may be pressed, the embroidery frame is not driven. Departure from the part can be reliably prevented.

According to the sixth aspect of the invention, the same effect as in any one of the first to third aspects is obtained, but a plurality of the engagement recesses are provided, and a plurality of the engagement recesses is provided. Are provided, and a plurality of mounting positions for mounting the embroidery frame with respect to the drive output portion can be set. Therefore, the same effect as that of the fifth aspect can be obtained.

According to the seventh aspect of the present invention, at least one engaging projection in the horizontal direction formed on the drive output section includes:
At least one engagement recess is provided for engagement through relative movement in a substantially vertical direction, and the engagement recess is formed to be inclined with respect to the vertical direction in a vertical plane perpendicular to the axis of the engagement projection. Therefore, even when a part of the embroidery frame protruding from the bed portion is pressed downward, the embroidery frame does not easily come off due to the engagement between the engagement projection and the inclined engagement recess.

According to the eighth aspect of the invention, the same effect as that of the seventh aspect is obtained, but the engagement recesses are formed when the embroidery frame is pushed downward from above and from the near side to the back side. Since it is formed in the inclined direction engaging with the portion, the same effect as in claim 2 can be obtained. According to the ninth aspect of the present invention,
The same effect as that of claim 7 or 8 is obtained, but a plurality of engagement concave portions are provided more than the plurality of engagement convex portions, and a plurality of mounting positions for mounting the embroidery frame with respect to the drive output portion can be set. Therefore, the same effect as the fifth aspect can be obtained. According to the tenth aspect of the invention, the same effect as any one of the seventh to ninth aspects is obtained, but a wide engaging recess for guiding is formed to be continuous with the lower end of the engaging recess. The same effect can be obtained.

According to the eleventh aspect, at least one engaging projection is provided on one of the embroidery frame and the mounting portion for mounting the embroidery frame, and the embroidery frame is mounted on the other of the mounting portion for mounting the embroidery frame. When the frame is pushed obliquely from the front side to the back side, at least one engagement concave portion is provided to engage with the engagement protrusion, so that the embroidery frame is directed downward from above and obliquely from the front side to the back side. The embroidery frame can be easily attached to the drive output unit by pushing it in, and the embroidery frame can be easily removed simply by pulling the embroidery frame upward from below and obliquely from the back side to the front side.
Further, even when a part of the embroidery frame protruding from the bed portion is pressed downward, the embroidery frame does not easily come off.

According to the twelfth aspect of the invention, the same effect as that of the eleventh aspect is obtained, but since the plurality of engaging projections and the engaging recesses are provided, when the embroidery frame greatly protrudes from the bed portion, By pressing a part of the protruding embroidery frame downward, the embroidery frame corresponds to the engagement projection on the pressing side and the engagement projection on the side opposite to the pressing side based on the principle of leverage. When tilting to separate from the engagement recess, rotation will be restricted via the engagement recess directed obliquely,
It is possible to reliably prevent the embroidery frame from coming off the drive output section.

[Brief description of the drawings]

FIG. 1 is a perspective view of an electronically controlled embroidery sewing machine according to an embodiment of the present invention.

FIG. 2 is a plan view of an embroidery frame and a mounting bracket.

FIG. 3 is a vertical sectional front view taken along line CC of FIG. 2;

FIG. 4 is a side view of the embroidery frame and the mounting bracket.

FIG. 5 is a diagram corresponding to FIG. 4 in which an embroidery frame is mounted on a mounting bracket.

FIG. 6 is a partially enlarged side view of the front side of the embroidery frame.

FIG. 7 is a partially enlarged side view of the back side of the embroidery frame.

FIG. 8 is a perspective view of an embroidery frame and a frame driving mechanism according to a modified embodiment.

FIG. 9 is a diagram corresponding to FIG. 4 according to a conventional technique.

FIG. 10 is a diagram corresponding to FIG. 5 according to a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electronically controlled embroidery sewing machine 10 Frame drive mechanism 12 Embroidery frame 12b Notch recess 16 Mounting bracket 17, 31 Flanged pin 20 Engagement plate 20a, 32b First notch 20b, 32c Second notch 22 engagement recess 23 Wide engagement recess

Claims (12)

[Claims] An embroidery apparatus comprising: an embroidery frame for mounting a work cloth to be used for embroidery; a frame drive mechanism for moving and driving the embroidery frame; and a sewing mechanism for sewing the work cloth. An embroidery frame mounting structure for removably mounting the embroidery frame on the drive output portion of the mechanism includes a drive output portion and at least one engaging projection provided in one of the embroidery frames and oriented in a horizontal direction; At least one engagement recess provided on the other side of the embroidery frame for relatively moving the engagement protrusion in the substantially vertical direction to engage, the engagement recess being perpendicular to the axis of the engagement protrusion. An embroidery frame mounting structure for an embroidery device, wherein the embroidery frame is formed so as to be inclined with respect to a vertical direction on a surface. 2. The method according to claim 1, wherein the engaging recess is formed in an inclined direction in which the engaging recess engages with the engaging protrusion when the embroidery frame is pushed downward from above and from the near side to the far side. An embroidery frame mounting structure for the embroidery device according to claim 1. 3. The engaging projection is a pin with a flange provided on a mounting fixture fixed to a drive output section and having a flange at a tip end, and the engagement recess is formed in an embroidery frame and has a lower end open. The embroidery frame mounting structure for an embroidery device according to claim 1 or 2, wherein the embroidery frame is a T-shaped groove. 4. An embroidery frame mounting structure for an embroidery device according to claim 3, wherein a wide engaging recess for guiding is formed continuously with a lower end of said engaging recess. 5. A plurality of engaging projections are provided, and a plurality of engaging recesses more than the plurality of engaging projections are provided, and a plurality of mounting positions for attaching an embroidery frame to the drive output unit are provided. The embroidery frame mounting structure of the embroidery apparatus according to any one of claims 1 to 3, wherein the setting is possible. 6. A plurality of said engaging concave portions are provided, and a plurality of engaging convex portions more than said plurality of engaging concave portions are provided, and a plurality of mounting positions for attaching an embroidery frame to said drive output portion are provided. The embroidery frame mounting structure of the embroidery device according to any one of claims 1 to 3, wherein the setting is enabled. 7. An embroidery frame detachably attached to a drive output section of a frame drive mechanism for moving and driving a work cloth to be subjected to embroidery in an embroidery apparatus, wherein at least one of the embroidery frames is formed on the drive output section in a horizontal direction. At least one engaging concave portion is provided on the engaging convex portion so as to engage through relative movement in a substantially vertical direction, and the engaging concave portion extends vertically in a vertical plane perpendicular to the axis of the engaging convex portion. An embroidery frame characterized by being formed in an inclined shape with respect to the embroidery frame. 8. The method according to claim 1, wherein the engaging recess is formed in an inclined direction in which the engaging recess engages with the engaging protrusion when the embroidery frame is pushed downward from above and from the near side to the far side. The embroidery frame according to claim 7. 9. A method according to claim 1, wherein a plurality of engagement recesses are provided, the plurality of engagement recesses being larger than the plurality of engagement projections, and a plurality of mounting positions for mounting the embroidery frame with respect to the drive output unit can be set. The embroidery frame according to 7 or 8. 10. A wide engaging recess for guiding, which is continuous with a lower end of said engaging recess.
The embroidery frame according to any one of the above. 11. A sewing apparatus for holding a work cloth to be sewn on an embroidery frame and relatively moving the embroidery frame holding the work cloth and a sewing means for sewing, wherein the embroidery frame and the embroidery frame are mounted. At least one engaging protrusion is provided on one of the mounting portions to be mounted, and the engaging protrusion is formed when the embroidery frame is obliquely pushed from the near side to the far side into the other of the embroidery frame and the mounting portion for mounting the embroidery frame. A sewing device provided with at least one engagement recess for engaging with the sewing machine. 12. The sewing apparatus according to claim 11, wherein a plurality of the engaging protrusions and the engaging recesses are provided.