JP6089773B2 - Embroidery frame - Google Patents

Description

  The present invention relates to an embroidery frame for stretching an object to be embroidered such as a cloth to be embroidered.

  Patent Document 1 discloses an embroidery frame formed on an inclined surface that moves toward the inside of the embroidery frame as the cloth nipping surface of at least a part of each of the outer frame and the inner frame moves from below to above. . Patent Document 2 discloses an embroidery frame for preventing cloth from slipping by providing an elastic belt on the outer peripheral surface of an inner frame or applying an adhesive. Patent Document 3 discloses an embroidery frame in which a large number of grain-shaped protrusions are provided on a beat portion provided on an outer frame or an inner frame, and a hole is provided in a groove portion facing the beat portion.

JP 2006-144200 A US Pat. No. 5,555,653 US Pat. No. 5,722,191

  The embroidery frames disclosed in Patent Documents 1 and 2 described above require that the object to be embroidered is held between the outer frame and the inner frame, and then the object to be embroidered is pulled outward. And since the to-be-embroidered object is pulled, the to-be-embroidered object may rub and become a wrinkle. In addition, the embroidery frame disclosed in Patent Document 3 may be extended by a portion held by the spherical protrusions of the embroidery object, may become wrinkles around the embroidery object, or may be damaged.

  The present invention has been made in view of the above situation, and it is an object of the present invention to provide an embroidery frame that can stretch a pinched embroidery object without pulling the embroidery object outward and hardly damage the embroidery object. .

The structural feature of the invention of (1) for solving the above-mentioned problem is that the outer frame is formed in a frame shape such that both ends in the circumferential direction face each other,
An inner frame formed in a frame shape that can be fitted inside the outer frame, and has an outer peripheral wall surface that sandwiches an embroidered object that forms a cloth shape with the inner peripheral wall surface of the outer frame;
An inner peripheral wall surface of the outer frame projecting the cross-sectional shape projects into the frame side while inclined toward the middle in the thickness direction from one side in parallel with the thickness direction to the central axis of the outer frame or the inner frame Part
The outer peripheral wall surface of the inner frame is divided in the thickness direction in the vicinity where the protrusions face each other,
The inner peripheral wall surface of the outer frame is deformable in the direction of diameter reduction of the inner frame,
The outer peripheral wall with the outer peripheral wall surface of the inner frame can be deformed in the reduced diameter direction in the middle in the thickness direction and / or is recessed .
When the outer peripheral wall surface of the inner frame is deformed and / or recessed, the end portion in the diameter reducing direction of the projecting portion is in the diameter reducing direction than the end portion in the diameter increasing direction of the outer peripheral wall surface on the other side of the inner frame. It is possible to enter .

  The invention of the above (1) can be adopted by arbitrarily adding one or more of the configurations of (2) and (3) described below.

(2) The one side of the outer peripheral wall surface of the inner frame is more easily bent in the reduced diameter direction than the other side. Thereby, when the inner frame is pressed by the inner peripheral wall surface from which the outer frame protrudes, one side is bent and the other side maintains the shape of the inner frame, and the object to be embroidered can be firmly held.

In the above (1), the outer peripheral wall surface of the inner frame is divided in the thickness direction in the vicinity where the protrusions face each other, so that the inner peripheral surface of the outer frame protrudes from the outer peripheral surface of the inner frame to be divided. The part to be inserted enters and the object to be embroidered can be firmly held, and the outer frame and the inner frame are not easily detached in the thickness direction.

(3) when the outer peripheral wall surface of the inner frame's deformation and / or recessed, and the other side of the projecting portion of the inner peripheral wall surface of the outer frame and the other split portion side of the inner frame, abut each other The shape is complementary. Since the other side comes into contact with the other side than the protruding part of the outer peripheral wall surface of the inner frame from the protruding part of the inner peripheral wall surface of the outer frame, the embroidery object can be firmly held.

  Since the embroidery frame of the present invention has the above-described configuration, the embroidery object is held and stretched by reducing the diameter of the outer frame, so that the portion outside the embroidery frame of the embroidery object is pulled after the holding. There is no work. Further, since the object to be embroidered is not pulled, it can be suppressed that the object to be embroidered is rubbed, torn or damaged. Further, the portion protruding from the inner peripheral surface of the outer frame enters the divided portion of the outer peripheral surface of the inner frame, so that the inner frame is less likely to come off in the thickness direction even if the article to be embroidered is pulled.

1 is a perspective view of an embroidery frame 11 of Embodiment 1. FIG. 1 is an exploded perspective view of an embroidery frame 11 of Embodiment 1. FIG. FIG. 3 is a cross-sectional view of a part of the embroidery frame 11 according to the first embodiment. 2 is a cross-sectional view of a main part of an embroidery frame 11 according to Embodiment 1. FIG. It is sectional drawing which shows the state just before fitting an inner frame in the outer frame on which the to-be-embroidered object is mounted. It is sectional drawing which shows the state which put the inner frame inside the outer frame on which the to-be-embroidered object was mounted. It is sectional drawing which shows the state which reduced the diameter of the outer frame a little from the state which interposed the to-be-embroidered object between the outer frame and the inner frame. It is sectional drawing which shows the state which diameter-reduced the outer frame from FIG. 7 from the state which interposed the to-be-embroidered object between the outer frame and the inner frame. It is sectional drawing which shows the state which clamped the to-be-embroidered object with the outer frame and the inner frame. It is a perspective view of the embroidery frame 12 of Embodiment 2. It is the perspective view which decomposed | disassembled the embroidery frame 12 of Embodiment 2. FIG. It is a top view of the embroidery frame 12 of Embodiment 2.

  Exemplary embodiments of the present invention will be described with reference to the drawings. The embroidery frame according to the present embodiment holds an embroidery object between an outer frame and an inner frame. The “radial direction” used below is the radial direction of the outer frame and the inner frame, the “circumferential direction” is the circumferential direction of the outer frame or the inner frame, and the “vertical direction (thickness direction)” is the radial direction. A direction perpendicular to the direction and a direction tangent to the circumferential direction or a direction perpendicular to the direction parallel to the tangent.

(Embodiment 1)
The embroidery frame 11 according to this embodiment includes an outer frame 2 and an inner frame 3 as shown in FIGS. 1 and 2. The outer frame 2 is partly cut in the circumferential direction and is formed in a C-ring shape that is opposed to the gap 27 with a gap 27 therebetween. The outer frame 2 can be reduced in diameter and expanded in the radial direction. The outer frame 2 has a bowl-shaped first opposing portion 24 and a second opposing portion 25 that are formed so as to extend from both opposing ends in the radial direction. As shown in FIG. 2, the inner frame 3 includes two ring-shaped bending holding portions 31 and a holding base portion 32 that are not divided in the circumferential direction and can be fitted inside the outer frame 2.

As shown in FIG. 2, through holes 241 and 251 that penetrate in a direction parallel to the tangential direction of the outer frame 2 are formed in the first facing portion 24 and the second facing portion 25 of the outer frame 2, respectively. The shaft 41 of the male screw of the adjustment member 4 is rotatably inserted into both the through holes 241 and 251. As shown in FIG. 3, the adjustment member 4 has a head portion 42 having a size that is not inserted into the through holes 241 and 251 at one end of the shaft portion 41, and the other end of the shaft portion 41 passing through the through holes 241 and 251. Is screwed with the nut 43 of the female screw. The adjusting member 4 can adjust the gap 27 of the outer frame 2 by the screwing amount of the nut 43.

FIG. 4 is a cross-sectional view perpendicular to the circumferential direction in a state where the inner peripheral wall surface side of the outer frame 2 and the outer peripheral wall surface side of the inner frame 3 face each other. In FIG. 4, the outer frame 2 is located on the right side and the lower side (the other side) is open, and the inner frame 3 is formed by joining the two members located on the left side. As described above, the outer frame 2 is open at the bottom and has a box shape with the opening at the bottom. The outer frame 2 has an outer frame upper surface 21, the inner in frame 3 does not face the outer circumferential side and the outer frame outer circumferential surface 22 of the substantially vertical flat surface on the outer frame upper surface 21, the outer frame inner surface facing the inner frame 3 (Inner peripheral wall surface) 23. The outer peripheral surface 23 of the outer frame has a vertex (protrusion) 23T in the vicinity of the center in the vertical direction (arrow Y direction), and reaches the vertex 23T from the upper surface 21 of the outer frame downward (in the direction of diameter reduction). In the drawing, it is inclined so as to approach (in the direction of arrow C). And the outer frame holding surface 231 below the vertex 23T of the outer peripheral surface 23 of the outer frame seems to be depressed in the radial direction (the enlarged diameter direction, the direction of arrow E in the drawing) that is abruptly separated from the inner frame 3 from the vertex 23T. It has a shape that is notched or has a lower end protruding downward. A side wall on the inner peripheral side of the outer frame 2 together with the inner peripheral surface 23 of the outer frame and an inner inner peripheral side surface 261 inside the outer frame 2 forming the outer frame inner peripheral wall 26 are in a radial direction (in the direction of arrow D in the drawing). It is a substantially vertical flat surface. Therefore, the outer frame inner peripheral wall 26 with the outer frame inner peripheral surface 23 has the thickest vertex 23T in the radial direction.

As described above, in the inner frame 3, the two members, the bending holding portion 31 and the holding base portion 32, are joined in the vertical direction. The flexure holding part 31 is open at the bottom, and is opposed to the flat inner frame upper surface 311, the inner frame outer peripheral surface (outer peripheral wall surface) 312 facing the outer frame inner peripheral surface 23 of the outer frame 2, and the outer frame 2. And an inner peripheral side end portion 313 that is located on the inner peripheral side and is joined to the holding base portion 32. Further, the inner frame 3 has an outer peripheral side end portion 314 positioned below the inner frame outer peripheral surface 312 positioned in the vertical direction in the vicinity of the apex 23T of the outer frame inner peripheral surface 23 and is not joined to the holding base portion 32. The radial thickness of the inner peripheral end 313 is thicker than the radial thickness of the outer peripheral end 314. The bending holding portion 31 is formed so as to be thin on the inner frame outer peripheral surface 312 side, and when a radial force is applied, the outer peripheral end portion 314 is bent so as to enter the radial direction. Moreover, the outer periphery side edge part 314 can also be made to bend easily by using the raw material which bends more easily than the outer frame 2 or the holding base part 32, for example, ABS resin, for the bending holding part 31.

  The holding base portion 32 includes a lower portion 321 positioned below so as to close an opening below the bending holding portion 31, an inner frame inner peripheral wall 322 extending upward from the inner peripheral side of the lower portion 321, and an inner portion from the lower portion 321. It has a protrusion 323 protruding upward in parallel with the inner peripheral wall 322 of the frame. Between the inner frame inner peripheral wall 322 and the protruding portion 323, the inner peripheral end 313 of the bending holding portion 31 is engaged and joined. As a joining method, for example, any method such as screwing, fitting, adhesion or welding may be used. The end of the lower frame 321 on the outer frame 2 side and the inner frame holding portion 324 are located in a position facing the outer frame holding surface 231 of the outer frame inner peripheral surface 23 of the outer frame 2 in the vertical direction, and are smooth in the vertical direction. It is formed in a circle so as to draw an arc. The outer frame holding surface 231 and the inner frame holding portion 324 have complementary shapes so that the embroidery object 7 can be held without a gap.

  Next, a method for attaching / detaching the embroidery object 7 to / from the embroidery frame 11 according to the first embodiment will be described. 5 to 9 are cross-sectional views of the outer frame 2, the inner frame 3, and the embroidery object 7 cut along the radial direction of the outer frame 2 or the inner frame 3, and the outer frame 2, the inner frame 3, and the embroidery object. The object 7 is line symmetric with respect to the central axis Y of the outer frame 2 or the inner frame 3. The central axis Y is substantially parallel to the vertical direction.

First, the adjusting member 4 that adjusts the diameter of the outer frame 2 is set so that the inner peripheral diameter of the outer frame 2 is larger than the outer peripheral diameter of the inner frame 3 and the thickness of the embroidery object 7. As shown in FIG. 5, the embroidery object 7 is placed on the outer frame 2 and the upper surface 21 of the outer frame, and the inner frame 3 is placed on the inner peripheral side of the outer frame 2 from above the embroidery object 7 as shown in FIG. 6. Push into. At this stage, the embroidery object 7 is not firmly held between the inner frame 3 and the outer frame 2 and is not in a sufficiently stretched state. Next, the nut 43 of the adjustment member 4 is turned to tighten the outer frame 2 so that the diameter of the outer frame 2 is reduced. When the outer frame 2 is tightened, the embroidery object 7 is first sandwiched between the apex 23T of the outer frame 2 and the bending holding portion 31 of the inner frame 3, as shown in FIG. When the outer frame 2 is further tightened, as shown in FIG. 8, the bending holding portion 31 of the inner frame 3 is pushed by the apex 23T of the outer frame 2 in the diameter-reducing direction, and the embroidery object 7 is held in a sandwiched manner. , the outer end portion 314 is deformed so as to enter the reduced radial direction over the entire circumference. When the outer frame 2 is further tightened, the outer frame 2 is held by the outer frame holding surface 231 of the outer frame 2 and the inner frame holding portion 324 of the holding base 32 of the inner frame 3 as shown in FIG. Is firmly held.

When FIG. 7 is compared with FIG. 9, the embroidery object 7 narrows along the surface of the inner frame holding portion 324 of the holding base portion 32 of the inner frame 3 due to the deformation of the bending holding portion 31 of the inner frame 3. Be held. Since the embroidery object 7 is sandwiched between the vertex 23T of the outer frame 2 and the inner frame outer peripheral surface 312 of the inner frame 3, the outer side (expanded side) of the part sandwiched by the embroidery frame 11 is on the inner side. Not drawn. That is, the to-be-embroidered object 7 is pulled so that the part inside the vertex 23T may be along the surface of the inner frame holding part 324. Therefore, by tightening the outer frame 2, the embroidery object 7 is held and stretched, and there is no need to pull the embroidery object 7 in the diameter-expanding direction after the outer frame 2 is tightened.

  In order to remove the article 7 from the embroidery frame 7 according to the first embodiment, the above procedure is reversed. That is, the nut 43 of the adjusting member 4 is turned to loosen the fastening of the embroidery frame 7, and the inner diameter of the outer frame 2 is expanded more than the outer diameter of the inner frame 3.

  According to the embroidery frame 11 of the first embodiment, the embroidery object 7 is held and tensioned by tightening the outer frame 2, so that the outer portion of the embroidery frame 11 of the embroidery object 7 is held after the holding. There is no work to pull. Further, since the outer frame 2 and the inner frame 3 are not forcedly pushed or pulled, the embroidery object 7 is not rubbed or torn or damaged.

  Further, the vertex 23T of the outer frame 2 is sandwiched between the outer peripheral side end portion 314 of the inner frame 3 and the inner frame holding portion 324 in the vertical direction. The frame 3 is difficult to come off in the vertical direction. That is, since the embroidery frame 11 is not pressed so that the inner frame 3 does not come off, the embroidery object 7 can be easily set on the embroidery frame 11. Further, the embroidery frame 11 is unlikely to be detached from the outer frame 2 and the inner frame 3 against unexpected external forces such as dropping.

(Embodiment 2)
As shown in FIGS. 10 to 12, the embroidery frame 12 of the second embodiment has the same basic configuration and operation effects as the embroidery frame 11 of the first embodiment. Below, it demonstrates focusing on a different structure.

  The embroidery frame 12 according to the second embodiment includes an outer frame 2 and an inner frame 3. The outer frame 2 has the same configuration as the outer frame 2 of the first embodiment. The inner frame 3 includes a bending holding portion 31 and a holding base portion 32. Unlike the bend holding portion 31 of the first embodiment, the bend holding portion 31 is formed with four notches 33 in which the inner frame outer peripheral surface 312 to the inner frame upper surface 311 are notched. As shown in FIG. 12, the notches 33 are arranged so as to be equally divided in the circumferential direction. The notches 33 are not limited to four, and are preferably at least one, and preferably formed at positions equally divided in the circumferential direction when two or more are formed.

  When the outer frame 2 is tightened by the adjusting member 4 to reduce the diameter, a force for reducing the diameter of the inner frame 3 is also applied. At that time, the inner frame 3 can be prevented from being distorted in the vertical direction by reducing the diameter so that the interval in the circumferential direction of the notch 33 is narrowed.

According to the embroidery frame 12 in the embodiment 2, the outer frame 2 is clamped by the regulatory member 4, the apex of the inner frame outer peripheral surface 312 of the flexible retaining portion 31 of the inner frame 3 is an outer frame 2 of the outer frame in the peripheral surface 23 When the outer peripheral side end 314 of the inner frame 3 is deformed so as to enter the reduced diameter direction by being pressed in the reduced diameter direction by 23T, the interval between the notches 33 becomes narrower in the circumferential direction, and the inner frame upper surface 311 of the inner frame 3 is reduced. Since the deformation of the inner frame 3 is absorbed, it is possible to suppress the inner frame 3 from being bent in the vertical direction.

(Other embodiments)
The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment. For example, the thickness in the radial direction is reduced so that the outer peripheral side end 314 of the bending holding portion 31 is easily bent in the reduced diameter direction, the thickness in the radial direction of the outer frame 2 is increased, and the bending holding portion 31 is attached to the outer frame. 2 and the holding base 32 can be the same material. And the inner frame 3 is not restricted to the structure which joins two or more members, One member formed by integral molding etc. may be sufficient.

  Further, the shape of the outer frame 2 is not limited to the shape in which the lower part is opened. It is conceivable that the lower part is not opened or partly opened in the radial direction. If there is no opening at all, it is conceivable to reduce the thickness in the vertical direction to such an extent that the lower surface side may be deformed.

In addition, the adjustment member 4 is not limited to the configuration using screws and nuts, and may be any member that can expand and contract the gap 27 .

DESCRIPTION OF SYMBOLS 11, 12 ... Embroidery frame 2 ... Outer frame 21 ... Outer frame upper surface 22 ... Outer frame outer peripheral surface 23 ... Outer frame inner peripheral surface 231 ... Outer frame holding surface 23T ... Vertex (protrusion part) 24 ... First opposing part 241, 251... Through hole 25. Second opposing portion 26. Outer frame inner peripheral wall 261 ... Inner inner peripheral side surface 27 ... Gap 3 ... Inner frame 31 ... Deflection holding portion 311 ... Inner frame upper surface 312 ... Inner frame outer peripheral surface 313 ... Inner peripheral side End 314 ... Outer peripheral side end 32 ... Nipping base 321 ... Lower part 322 ... Inner frame inner peripheral wall 323 ... Projection part 324 ... Inner frame holding part 33 ... Notch 4 ... Adjusting member 41 ... Shaft part 42 ... Head 43 …nut

Claims (3)

An outer frame formed in a frame shape such that both ends in the circumferential direction face each other;
An inner frame formed in a frame shape that can be fitted inside the outer frame, and has an outer peripheral wall surface that sandwiches an embroidered object that forms a cloth shape with the inner peripheral wall surface of the outer frame;
An inner peripheral wall surface of the outer frame projecting the cross-sectional shape projects into the frame side while inclined toward the middle in the thickness direction from one side in parallel with the thickness direction to the central axis of the outer frame or the inner frame Part
The outer peripheral wall surface of the inner frame is divided in the thickness direction in the vicinity where the protrusions face each other,
The inner peripheral wall surface of the outer frame is deformable in the direction of diameter reduction of the inner frame,
The outer peripheral wall with the outer peripheral wall surface of the inner frame can be deformed in the reduced diameter direction in the middle in the thickness direction and / or is recessed .
When the outer peripheral wall surface of the inner frame is deformed and / or recessed, the end portion in the diameter reducing direction of the projecting portion is in the diameter reducing direction than the end portion in the diameter increasing direction of the outer peripheral wall surface on the other side of the inner frame. An embroidery frame that can enter . The embroidery frame according to claim 1, wherein the one side of the outer peripheral wall surface of the inner frame is more easily bent in the reduced diameter direction than the other side. When the outer peripheral wall surface of the inner frame's deformation and / or recessed, and the other side of the projecting portion of the inner peripheral wall surface of the outer frame and the other split portion side of the inner frame is complementary to abut one another The embroidery frame according to claim 1 or 2 , which has a typical shape.

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