JPH0978438A - Embroidery frame holder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an embroidery frame holder designed to make easy fine tuning of embroidery frame inclination without the need of resetting of an embroidery frame set with a cloth. SOLUTION: A connecting plate 4 on the left side of an embroidery frame 1 is moved longitudinally to rotate the embroidery frame 1 on a horizontal plane around a shaft 10A engaged into the shaft hole 4A of another connecting plate 4 on the right side and adjust the frame 1 to a specified inclination. In rotating the frame 1, a nut 13 moves longitudinally along the slit 10A of a holding plate 10 and the slit 11A of a guide plate 11 and also moves transversely a bit along the opening 4A of the connecting plate 4. After the adjustment, a screw 14 screwed into the nut 13 is tightened to fix the embroidery frame 1 on a holding frame 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embroidery frame holding device in which the inclination of an embroidery frame with respect to a holding frame of a sewing machine can be adjusted within a plane perpendicular to a needle bar.

[0002]

2. Description of the Related Art Conventionally, as this type of device, an embroidery frame is directly and detachably fixed to a holding frame of a sewing machine at a predetermined position with screws or snaps.

[0003]

However, according to the above-mentioned prior art, it is not possible to finely adjust the inclination of the cloth stretched on the embroidery frame with respect to the direction of the pattern to be embroidered by the sewing machine. In order to match, it is necessary to loosen or remove the fabric supported by the embroidery frame and re-tighten the fabric again while paying attention to a predetermined inclination.

The present invention has been made to solve the above-mentioned problems, and enables the fine adjustment of the inclination of the embroidery frame without re-extending the embroidery frame with the cloth. To provide the embroidery frame holding device.

[0005]

In order to achieve this object, an embroidery frame holding device according to a first aspect of the present invention can attach and detach an embroidery frame for supporting a cloth to be embroidered to a holding frame of a sewing machine. In particular, a holding portion for holding the connecting portion of the embroidery frame is provided on both left and right sides of the embroidery frame, and the connecting portion of the holding frame is provided on both left and right sides of the holding frame. And connecting means for connecting the embroidery frame to the holding frame so that the position of the embroidery frame can be adjusted in the horizontal direction between the connecting portion and the holding portion on at least one of the left and right sides. Therefore, the connecting means can adjust the inclination of the embroidery frame with respect to the holding frame in the horizontal plane.

Further, the connecting means of the embroidery frame holding device according to a second aspect is provided with at least one of the connecting portion and the holding portion, and the long groove extending along the adjusting direction, and the long groove. Is relatively movable within the range of the long groove, and is configured by a locking member that integrally connects the connecting portion and the holding portion at an arbitrary position within the range of the long groove. Therefore, it is possible to adjust the inclination of the embroidery frame quickly and accurately while moving the locking member relatively along the long groove.

Further, the locking member of the embroidery frame holding device according to a third aspect of the present invention comprises a nut and a tightening screw screwed into the nut, and the nut or the tightening screw is the groove edge portion of the long groove. Is movably supported along the long groove. Therefore, the inclination of the embroidery frame can be adjusted by loosening the tightening screw and moving the tightening screw or the nut along the long groove, and by tightening the tightening screw at this position. The connecting part and the holding part may be integrally connected. Therefore, the inclination of the embroidery frame can be adjusted quickly and accurately, and the adjustment locking structure can be simplified.

Further, in the embroidery frame holding device according to a fourth aspect, one of the nut and the tightening screw is supported by a groove edge portion of a long groove provided in the holding portion, and the other is connected by the connecting portion. It is configured to be screwed into the one side through the provided opening in the left-right direction. Therefore, similarly to the invention of claim 3, the inclination of the embroidery frame can be adjusted quickly and accurately, and the adjusting and locking structure thereof can be further simplified. Since the relative movement of the connecting portion and the tightening screw or nut in the left-right direction is permitted by the opening of the opening, the relative movement of the tightening screw or nut and the connecting portion accompanying the adjustment of the inclination of the embroidery frame is prevented. It can be made even smoother.

Further, in the embroidery frame holding device according to a fifth aspect of the present invention, a fulcrum of rotation associated with the position adjustment of the embroidery frame is provided between the connecting portion and the holding portion on the side opposite to the installation side of the connecting means. And a shaft hole that rotatably fits the shaft, and a spring member that holds the fitting of the shaft and the shaft hole. Therefore, when supporting the embroidery frame on the holding frame,
By fitting the shaft into the shaft hole and operating the spring member, the left and right connecting parts of the embroidery frame can be easily supported by the holding part, and the shaft and the shaft can be supported during embroidery sewing. The fitting with the hole is reliably retained.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments embodying the embroidery frame holding device of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, an embroidery frame 1 for supporting a material T to be embroidered is composed of an outer frame 2, an inner frame 3, and a pair of left and right connecting plates 4, 4. The outer frame 2 is formed in a substantially arc shape that is partially separated, and an outer frame tightening screw 5 is screwed into the separated part, and the outer frame tightening screw 5 is tightened or loosened to form the outer frame 2 The inner diameter of the can be finely adjusted. The inner frame 3 fitted inside the outer frame 2 via the cloth T is formed in an arc shape similar to the outer frame 2, and the left and right upper edge portions thereof are respectively attached to the outer side so as to horizontally project. The piece 3A is integrally formed.
On the lower surface of each of the mounting pieces 3A, one end of each of the connecting plates 4 and 4 constituting the connecting portion of the present invention has three screws 6 respectively.
Fixed by A circular shaft hole 4A and a substantially U-shaped opening 4B that is open to the outside are formed in the other ends of the connecting plates 4 and 4 in a front-rear reverse positional relationship.
The left and right connecting plates 4 and 4 are formed in the same shape, and, as shown in FIG. 1, are fixed to the mounting pieces 3A in the left-right opposite directions.

The holding frame 7 for detachably supporting the embroidery frame 1 is detachably fixed to the embroidery sewing machine, and fixed to the left and right side portions of the attachment metal 8 by a pair of screws 9. Pair of left and right holding plates 10, 10
Composed of and. Each of the holding plates 10 and 10 constitutes a holding portion of the present invention. A long groove 10A having a groove width substantially equal to the groove width of the opening 4B of the connecting plate 4 and long in the front-rear direction is formed at the front end portion of the left holding plate 10, and the guide plate 11 is provided on the lower surface. It is fixed by a pair of screws 12. The guide plate 11 has a middle portion in the left-right direction bent downward and the holding plate 10 inside thereof.
An overhanging portion 11A that horizontally protrudes is provided with a slight gap between the lower surface and the lower surface. The overhanging portion 11A is vertically aligned with the long groove 10A of the holding plate 10,
Moreover, the long groove 11B having the same shape is formed.

At the edge of the long groove 11B of the projecting portion 11A, the nut 13 is reciprocally movable back and forth along the long groove 11B in a state in which the rotation around the axis and the movement in the vertical direction are both restricted. Supported. Further, on the upper portion of the nut 13, a small columnar columnar portion 1 fitted into the long groove 10A of the holding plate 10 and the opening 4B of the connecting plate 4, respectively.
3A is provided. The nut 13 has a columnar portion 1
From the 3A side, the tightening screw 14 with the knob 14A is screwed. As shown in FIGS. 1 and 2, with the embroidery frame 1 set on the holding frame 7, by tightening the tightening screw 14, the knob 14A and the nut 1
3, the connecting plate 4 of the embroidery frame 1 is connected to the holding plate 1 of the holding frame 7.
It can be firmly fixed to zero. The holding plate 1
The long groove 10A of 0, the long groove 11A of the guide plate 11, the nut 13, and the tightening screw 14 constitute the connecting means of the present invention.

On the other hand, a pin-shaped shaft 15 fitted in the shaft hole 4A of the right connecting plate 4 is provided at the front end portion of the right holding plate 10. On the upper surface of the holding plate 10, a leaf spring 16 having its free end pressed against the upper surface of the connecting plate 4 to press the connecting plate 4 against the upper surface of the holding plate 10 is fixed by a pair of screws 17. .

Next, the operation for attaching and detaching the embroidery frame 1 configured as described above to the holding frame 7 and the operation for adjusting the inclination of the attached embroidery frame 1 will be described.

First, before attaching the embroidery frame 1, the cloth T is fixed to the embroidery frame 1. That is, the outer frame 2 and the inner frame 3 are separated from each other, a predetermined material T is placed on the upper surface of the outer frame 2, and then the inner frame 3 is fitted into the outer frame 2 from above to form the material. Is sandwiched between the inner and outer frames 3 and 2, and the intermediate portion of the cloth T is tensioned to the lower surface side of the outer frame 2. In this state, the outer frame tightening screw 5 is tightened to attach the cloth T to the embroidery frame 1
Fixed to. When fixing the cloth T, the orientation of the cloth T with respect to the embroidery frame 1 depends on
Generally, the texture of the cloth T, that is, the directions of the weft threads and the warp threads of the cloth T are referred to. For example, the fabric T is arranged so that the direction of the weft thread is in the left-right direction of the embroidery frame 1 and the direction of the warp thread is in the front-rear direction of the embroidery frame 1.

Next, when fixing the embroidery frame 1 to which the material T is fixed to the holding frame 7 as described above, first, the tightening screw 14 is loosened and the connecting plate 4 on the left side of the embroidery frame 1 is loosened. The opening 4A is fitted into the columnar portion 13A of the nut 13, and subsequently, while inserting the right side connecting plate 4 between the leaf spring 16 and the upper surface of the holding plate 10, its shaft hole 4A is inserted into the shaft 15 of the holding plate 10.
To fit.

Next, it is checked whether or not the inclinations of the material T fixed to the embroidery frame 1 and the embroidery pattern to be embroidered match as predetermined. For example, the following means can be taken as a method of checking this. That is, a well-known marking light attached to an embroidery sewing machine is used to irradiate the surface of the cloth T with laser beams in the left-right direction and the front-back direction, and the direction of the light beam coincides with the direction of the weft and warp threads of the cloth T. Check visually whether there is any. Or, as another method,
Mark the dots on the left and right on the fabric, align the needle drop point with one point, and then move the embroidery frame 1 left and right by the embroidery sewing machine to make the other point the needle drop point. Visually check if they match.

As a result of the confirmation as described above, when the inclination of the embroidery frame 1 is incorrect, the connecting plate 4 on the left side of the embroidery frame 1
By moving the embroidery frame 1 around the shaft 10A fitted in the shaft hole 4A of the right connecting plate 4 by moving the embroidery frame 1
Is rotated in a horizontal plane so that the embroidery frame 1 has a predetermined inclination. When the embroidery frame 1 is rotated, the nut 13
While moving in the front-back direction along the long groove 10A of the holding plate 10 and the long groove 11A of the guide plate 11, the opening 4A of the connecting plate 4 is formed.
Moves very slightly left and right along. Since the nut 13 moves smoothly in this way, the rotation of the embroidery frame 1 can be always performed smoothly and smoothly.

After the embroidery frame 1 is tilted as described above and the tightening screw 14 is tightened, the embroidery frame 1 is fixed to the holding frame 9, and its arrangement adjustment and fixing work are completed. In this fixed state, since the right side connecting plate 4 of the embroidery frame 1 is pressed against the upper surface of the holding plate 10 by the leaf spring 16, the right side connecting plate 4 does not inadvertently float upward.

After that, the predetermined embroidery sewing work is completed,
In order to remove the embroidery frame 1 from the holding frame 10, the tightening screw 14 is loosened and the
Slightly lift the connecting plate 4 on the right side and insert the shaft hole 4A into the shaft 15
From above, and in that state, while moving the right side connecting plate 4 forward, the entire embroidery frame 1 is moved to the right side, and the opening 4A of the left side connecting plate 4 is removed from the columnar portion 13A of the nut 13. It is done by things.

The present invention is not limited to the embodiments described above, and various modifications can be made without departing from the spirit of the invention.

In the embroidery frame 1 of this embodiment, the left and right connecting plates 4 are fixed to the inner frame 3, but the connecting plates 4 may be fixed to the left and right of the outer frame 2.

In order to further stabilize the support of the nut 13 with respect to the holding plate 10, the guide plate 11 is provided. However, the guide plate 11 is omitted and the nut 13 is replaced with the groove of the long groove 10A of the holding plate 10. It may be configured to support the edge portion so as to be movable only in the front-rear direction. In this case, for example, the groove edge portion of the long groove 10A is formed thicker than other portions, and front and rear guide grooves are formed on the left and right side surfaces of this portion, while the lower left and right side portions of the nut 13 are formed. In addition, a pair of left and right fitting portions that slidably fit in the guide grooves may be formed.

Further, the nut 13 is attached to the holding plate 10.
Although it is movably supported with respect to the groove edges of the long groove 10A and the long groove 11B of the guide plate 11, the tightening screw 14 may be movably supported instead of the nut 13.

Further, although the long grooves 10A and 11B are provided on the holding plate 10 side, conversely, a long groove is provided on the connecting plate 4, and the nut 13 or the tightening screw 14 is provided at the groove edge portion of the long groove. It may be movably supported.

[0027]

As is apparent from the above description, according to the embroidery frame holding device of the first aspect of the present invention, particularly, the connecting portions are provided on the left and right sides of the embroidery frame, respectively. A holding portion for holding the connecting portion of the embroidery frame is provided on both left and right sides of the holding frame, and the embroidery frame is provided between the holding portion and the connecting portion on at least one of the left and right sides. Since the connecting means for connecting the position adjustment in the horizontal direction is provided, the inclination of the embroidery frame with respect to the holding frame in the horizontal plane can be easily and finely adjusted by the connecting means.

According to the embroidery frame holding device of the second aspect, the connecting means is provided in at least one of the connecting portion and the holding portion, and is a long groove extending along the adjustment direction. And a locking member that is relatively movable along the long groove within the range of the long groove and integrally connects the connecting portion and the holding portion at an arbitrary position within the range of the long groove. Therefore, the inclination of the embroidery frame can be adjusted quickly and accurately while moving the locking member relatively along the long groove.

Further, according to the embroidery frame holding device of the third aspect, the locking member is composed of a nut and a tightening screw screwed to the nut, and the nut or the tightening screw is the long groove. The embroidery frame is tilted by loosening the tightening screw and moving the tightening screw or the nut along the long groove. Can be adjusted, and the connecting portion and the holding portion can be integrally connected by tightening the tightening screw at this position. Therefore, the inclination of the embroidery frame can be adjusted quickly and accurately, and the adjustment locking structure can be simplified.

Further, according to the embroidery frame holding device of the fourth aspect, one of the nut and the tightening screw is supported by the groove edge of the long groove provided in the holding portion, and the other is connected. Since it is configured to be screwed into the one side through the opening in the left and right direction provided in the portion, the inclination of the embroidery frame can be adjusted quickly and accurately as in the invention of claim 3. The adjustment locking structure can be further simplified, and the lateral opening allows the relative movement of the connecting portion and the tightening screw or nut in the lateral direction. It is possible to make the relative movement of the tightening screw or nut and the connecting portion more smooth when the tilt is adjusted.

Furthermore, according to the embroidery frame holding device of the fifth aspect, the embroidery frame holding device rotates between the connecting portion and the holding portion on the side opposite to the side where the connecting means is installed. Since a vertical shaft that serves as a fulcrum of the above and a shaft hole that rotatably fits the shaft and a spring member that holds the fitting of the shaft and the shaft hole are provided, the embroidery frame is supported by the holding frame. In this case, by fitting the shaft into the shaft hole and operating the spring member, the connecting portion on the left and right sides of the embroidery frame can be easily supported by the holding portion, and moreover, during the embroidery sewing. The fitting between the shaft and the shaft hole is reliably retained.

[Brief description of drawings]

FIG. 1 is a top view of an embroidery frame holding device.

FIG. 2 is an enlarged cross-sectional view taken along line AA of FIG.

FIG. 3 is an enlarged sectional view taken along line BB of FIG. 1;

[Explanation of symbols]

 1 Embroidery Frame 2 Outer Frame 3 Inner Frame 4 Connecting Plate 4A Shaft Hole 4B Opening 7 Holding Frame 10 Holding Plate 10A Long Groove 11B Long Groove 13 Nut 14 Tightening Screw 15 Shaft 16 Leaf Spring

Claims (5)

[Claims] 1. An embroidery frame holding device for detachably supporting an embroidery frame for supporting a material to be embroidered with respect to a holding frame of a sewing machine, wherein connecting portions are provided on both left and right sides of the embroidery frame. Then, holding portions for holding the connecting portion of the embroidery frame are provided on both left and right sides of the holding frame, and the embroidery frame is held between the holding portion and the connecting portion on at least one of the left and right sides. An embroidery frame holder characterized in that it is provided with a connecting means for connecting the frame so that the position thereof can be adjusted in the horizontal direction, and the inclination of the embroidery frame with respect to the holding frame in the horizontal plane can be adjusted by the connecting means. apparatus. 2. The connecting means is provided in at least one of the connecting portion and the holding portion, and is provided with a long groove extending along the adjustment direction, and a relative position along the long groove within the range of the long groove. 2. A locking member that integrally moves the connecting portion and the holding portion at an arbitrary position within the range of the long groove, and is configured by a locking member. Embroidery frame holding device. 3. The locking member includes a nut and a tightening screw screwed into the nut, and the nut or the tightening screw is supported at a groove edge portion of the long groove so as to be movable along the long groove. The embroidery frame holding device according to claim 2, wherein: 4. One of the nut and the tightening screw is supported on a groove edge portion of a long groove provided on the holding portion, and the other is provided on the one side through a lateral opening provided in the connecting portion. The embroidery frame holding device according to claim 3, wherein the device is screwed. 5. A vertical axis and its axis, which is a fulcrum of rotation associated with the position adjustment of the embroidery frame, can be rotated between the connecting portion and the holding portion on the side opposite to the installation side of the connecting means. The embroidery frame holding device according to claim 1, further comprising: a shaft hole that fits into the shaft and a spring member that holds the fitting of the shaft and the shaft hole.