JP2616897B2 - Embroidery frame for sewing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embroidery frame for a sewing machine for attaching an embroidery cloth when embroidering on the cloth with a sewing machine.

[0002]

2. Description of the Related Art In a conventional embroidery frame for a sewing machine, as shown in Japanese Utility Model Laid-Open Publication No. 52-25863, a streak member having a circular cross section is disposed on the upper surface of a receiving frame of a frame material. An embroidery cloth is sandwiched between the streak members by elastically covering a covering frame having a concave portion with a horseshoe cross section.

[0003]

In this conventional product, if the elasticity of the covering frame is weakened to facilitate the attaching / detaching operation, if the embroidery cloth is pulled at the time of embroidering, it slips out from between the receiving frame and the covering frame. Conversely, if the elasticity of both side walls in the concave portion of the covering frame is increased, a large force is required to cover and remove the covering frame, making it difficult for women and women to operate, and in addition to the There is a problem that the embroidery cloth is significantly damaged.

[0004] The present invention, except for the above-mentioned conventional problems, has a weak tensile force on the embroidery cloth even if the elasticity of the overlay frame is weakened so that the overlay frame can be attached and detached with a light force. It is an object of the present invention to provide an embroidery frame for a sewing machine which can prevent the embroidery cloth from moving between the receiving frame and the covering frame when the embroidery is added.

[0005]

According to the present invention, a frame member arranged so as to surround four circumferences of a space in which an embroidery cloth is placed is provided.
It is composed of a receiving frame and a cover frame, and the receiving frame has a bulging streak member on its upper surface along the longitudinal direction of itself,
The covering frame has a lower open fitting recess formed on the lower surface of the covering frame so as to correspond to the cross-sectional shape of the streak member,
The lower end portions of both side walls forming the fitting recess are formed so as to be elastically deformable in the near and far directions, and the dimension between the lower end portions of the both side walls is set with the embroidery cloth placed on the receiving frame. In the embroidery frame for a sewing machine, the lower ends of which are set to have a size to clamp the embroidery cloth between the streak member by fitting the fitting recess of the frame into the streak member. A stopper is attached to a position near the outside of the streak member, while a base of a lever member is fixed near a lower end of the outer side wall of the covering frame, and a tip of the lever member is fitted with the fitting. In the use state in which the concave portion is fitted to the streak member, it is positioned so as to be close to or in contact with the stopper, and when the inner side wall of the covering frame is pulled upward by the embroidery cloth, the tip of the lever member is Outside contact with stopper The lower end of the side wall is was constructed so as to press the embroidery cloth to Sujijo member.

[0006]

When the embroidery cloth is placed on the receiving frame and the fitting recess of the covering frame is fitted to the streak member of the receiving frame, the lower end portions of both side walls of the covering frame press against the outer periphery of the base of the striation member. Embroidery cloth between them. In this state, when a tensile force is applied to the embroidery cloth, the embroidery cloth raises the inner side wall of the covering frame, and as a result, the leading end of the lever member contacts the stopper and the lower end of the outer side wall of the covering frame. Is pressed against the base of the streak member, and the embroidery cloth is strongly clamped between the lower end of the side wall and the streak member.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, drawings showing embodiments of the present invention will be described. 1 to 4, reference numeral 1 denotes an embroidery frame for a sewing machine.
The one for a two-head sewing machine is shown. In the embroidery frame 1 for the sewing machine, reference numerals 2, 3, 4, and 5 denote frame members arranged so as to surround four circumferences of a space 21 for stretching the embroidery cloth. These are fixed to the four sides of the base frame serving as the base shown in FIG. 1, that is, the frame bodies 22, 23, 24, and 25 which are integrated with the fixing screws 26. The base frame 20 is disposed so as to move back and forth, left and right relative to the embroidery needle of the sewing machine. Since the frame members 2 and 4 and the frame members 3 and 5 have the same configuration except that they have different lengths, only the frame member 2 will be described, and the description of the other frame members 3, 4, and 5 will be described. Omitted.

The frame member 2 includes a receiving frame 6 shown in FIG. 2 and a covering frame 7 shown in FIG. The receiving frame 6 is formed of an aluminum material. In the above receiving frame 6,
Reference numeral 8 denotes a streak member formed in a bulging shape on the upper surface of the rigid substrate 27 and formed over the entire length of the receiving frame 6 in the longitudinal direction. In the streak member 8, 28 is a hollow hole, 29 is a fitting portion, 30 is a groove formed on the outer peripheral surface, and 31 and 32 are concave portions formed on the outer periphery of the base. Note that a knurl groove may be formed instead of the streak groove 30.

Next, reference numeral 9 denotes a stopper disposed at a position close to the outer side of the streak member 8, and is constituted by an upper end portion of a stopper piece 33 formed integrally with the substrate 27.
Note that the stopper 9 may be formed of a separate member fixed to the substrate 27. The stopper 9 and the streak member 8 are
May be provided only in a part of the entire length of the camera. Reference numeral 34 denotes a mounting piece formed integrally with the stopper piece 33.
Is formed, and a mounting hole 35 for inserting the set screw 26 is formed therein.

[0010] Next, in the cover frame 7, as shown in the figure, reference numeral 10 denotes a cover member formed in a substantially Ω shape, which is formed of a thin stainless steel plate. In the covering member 10, reference numeral 36 denotes a fitting concave portion having a narrow opening and a wide inner portion, and is formed to have a size capable of being fitted to the fitting portion 29 of the streak member 8. 37 and 38 are side walls, 39 and 40 are side walls 37 and 38
The fastening part provided at the lower end of the connecting part 41 is a connecting part,
The side walls 37, 38 are elastically connected so that the 9, 9 and 40 can be deformed in a direction away from each other with a small force. Reference numerals 42 and 43 denote holding portions, which form fitting grooves 42a and 43a. Also, 44
Is a reinforcing member superposed on the inner side wall 37, and a lower end portion is fitted in the fitting groove 42 a and is fixedly held by the holding portion 42. The reinforcing member 44 may be formed of, for example, an aluminum material, and may have a flexible elasticity.

Next, reference numeral 11 denotes a lever member having a base portion overlapped between a lower end portion and an intermediate portion of the outer side wall 38. The lower end portion is fitted in the fitting groove 43a and held by the holding portion 43. Fixed. 4 (A), an embroidery cloth 45 is interposed at the distal end of the lever member 11 with an embroidery cloth 45 therebetween.
A contact portion 11a is formed so as to approach or come into contact with the stopper 9 in a use state in which the stopper 9 is fitted. The lever member 11 may be formed of, for example, an aluminum or iron material, and may have a flexible elasticity.

In the above construction, when embroidering on the embroidery cloth 45, first, as shown in FIG.
4A, the embroidery cloth 45 is placed so as to cover the space 21 of the base frame 20 and each receiving frame 6 in a state of being removed from the base frame 20, and then the fitting recess 36 of the frame 7 is put on the streak member 8 in each receiving frame 6. The embroidery cloth 45 is fitted between the embroidery cloths 45 as shown in FIG. In this case, the space between the pair of tightening portions 39 and 40 of the cover frame 7 is expanded by the elasticity of the cover member 10 and is fitted into the fitting portion 29, and then the two tightening portions 39 and 40 are connected to the streak member 8. The outer periphery of the base is pressed into contact with the embroidery cloth 45. The cover frame 7 can be easily fitted into the streak member 8 with a relatively small force, and damage to the embroidery cloth 45 accompanying the cover frame 7 can be reduced. By the fitting of the covering frame 7, the embroidery cloth 45 is wound around the outer periphery of the fitting portion 29 of the streak member 8 around the space 21, and elastically moves between the pair of tightening portions 39 and 40 and the streak member 8 respectively. Embroidery cloth 45 in the space 21
Is held in tension. Embroidery cloth 45 as above
Is held in the embroidery frame 1 for the sewing machine, and embroidery is performed on the embroidery cloth 45 in the space 21 in a known manner.

Next, when the embroidery is performed on the embroidery cloth 45 as described above, when the embroidery cloth 45 at the position of the space 21 is subjected to a tensile force in the direction of arrow A, as shown in FIG. The cloth 45 raises the side wall 37 inside the covering frame 7 and pushes the covering member 10 in the direction of arrow B (outward). As a result, the intermediate portion of the lever member 11 is pushed in the direction of arrow C to bring the contact portion 11a into contact with the stopper 9, and the fastening portion 40 is pressed against the outer periphery of the base of the streak member 8 via the embroidery cloth 45, The embroidery cloth 45 is strongly pressed and held. Therefore, even when the embroidery cloth 45 at the position of the space 21 is pulled in the direction of the arrow A as described above, the embroidery cloth 45 can be prevented from slipping and moving between the receiving frame 6 and the covering frame 7.
It is possible to prevent the embroidery cloth 45 at the position of the space 21 from becoming loose. In the above case, since the groove 30 is formed on the outer periphery of the streak member 8, the embroidery cloth 45 is hard to slip through between the streak member 8 and the covering frame 7, and the embroidery cloth 45 is strongly pulled. However, the embroidery cloth 45 can be prevented from slipping through. When the cover frame 7 is removed, the cover frame 7 can be easily removed by pushing the lever member 11 inward.

FIG. 5 shows a different example of the present invention. In the cover frame 7e, the upper end of the lever member 11e is located substantially in the middle of the side wall 38e, and is contacted by a projection 46 fixed to the upper end. Section 11ae is configured. Further, the stopper 9e is constituted by an intermediate portion of the vertical height of the stopper piece 33e, and the contact portion 11ae is brought into contact with the stopper 9e.

[0015] Parts that are functionally considered to be the same as or equivalent to those in the preceding figure are given the same reference numerals as in the preceding figure with the letter e, and redundant description is omitted. (Also in the following figures, alphabets f, g, h, i, j, k, l, m, and n are assigned in order in the same way, and duplicate description is omitted.) In this embodiment, a contact portion 11af is provided at the tip of the lever member 11f, and a contact portion 11bf is also provided at the tip of a projection 46f provided at an intermediate portion of the lever member 11f. Contact part 11af, 11bf is 2
The stoppers 9af and 9bf at the locations are respectively brought into contact with each other.

FIGS. 7 and 8 show another different example.
The lever member 11g is formed into an L-shape by bending the tip end outward.

FIG. 9 shows another different example, in which the holding portion 43h of the covering member 10h is rounded in an arc shape and the lever member 11
h is formed in a round bar shape, and the holding portion of the covering member 10h is formed.
The base of the lever member 11h is fitted into 43h, and the tightening portion 40h is fitted into the recess 32h.

FIGS. 10 (A), (B) and (C) show different examples of the covering frames, respectively.
11j, 11k are formed integrally with the covering members 10i, 10j, 10k.

FIGS. 11A, 11B and 11C show examples of different arrangements of the lever members in the covering frame. FIG. 11A shows lever members provided at three positions, both ends and an intermediate portion of the covering member 10l. 11l
(B) is also provided at two places near both ends, (C)
Is also provided with lever members 11m and 11n at one position in the middle part, respectively.

[0020]

As described above, according to the present invention, the frame members 2, 3, 4, and 5 arranged so as to surround the four circumferences of the space 21 in which the embroidery cloth is placed are arranged in the receiving frame 6 and the covering frame 7. Consisting of
The receiving frame 6 has a bulging streak member 8 on its upper surface along its longitudinal direction, and the covering frame 7 is formed on its lower surface corresponding to the cross-sectional shape of the streak member 8. And the lower ends of both side walls 37 and 38 forming the fitting concave portion 36 are formed so as to be elastically deformable in the near and far directions with respect to each other. With the embroidery cloth 45 placed on the receiving frame 6, the fitting recess 36 of the covering frame 7 is fitted to the streak member 8, so that both lower ends of the embroidery cloth 45 are in contact with the streak member 8. When embroidering on the embroidery cloth 45, the fitting recess 36 of the covering frame 7 is fitted to the streak member 8 so that the embroidery cloth 45 is The embroidery cloth can be fastened to the frame material by being sandwiched between the receiving frame 6 and the covering frame 7.

As described above, the fitting recess 36 of the covering frame 7 is used.
The embroidery cloth 45 can be fixed to the frame members 2, 3, 4, and 5 by fitting the embroidery into the streak member 8 of the receiving frame 6. A stopper 9 is attached to a position near the outside of the member 8, a base of a lever member 11 is fixed to the cover frame 7 near a lower end of the outer side wall 38, and a tip of the lever member 11 is fitted with the fitting. When the recess 36 is fitted to the streak member 8, the stopper 9
Embroidery cloth 45
Is pulled inward, the distal end of the lever member 11 comes into contact with the stopper 9, and the lower end of the outer side wall 38 presses the embroidery cloth 45 between the streak member 8 and the outer wall 38. ,
When the embroidery cloth 45 is pulled with a large force, the lower end of the side wall 38 of the covering frame 7 is strongly pressed against the streak member 8 by the pulling force, so that the embroidery cloth 45 can be pinched therebetween. As a result, the embroidery cloth 45 can be properly fixed to the frame material, and accurate embroidery can be guaranteed.

When the embroidery cloth 45 is pulled with a large force as described above, the lower end of the side wall 38 of the covering frame 7 is strongly pressed against the streak member 8 by the pulling force, and the embroidery cloth 45 is pressed.
45, so that both side walls 3
The elasticity of the lower end portions of 7, 38 can be weakened. As a result, the work of fitting the fitting concave portion 36 of the covering frame 7 into the streak member 8 of the receiving frame 6 can be easily performed with a light force even by women and girls. Also, there is an effect that damage to the embroidery cloth 45 when the embroidery cloth 45 is sandwiched between the covering frame 7 and the receiving frame 6 can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view.

FIG. 2 is a perspective view of a receiving frame.

FIG. 3 is a perspective view of a covering frame.

4A is a cross-sectional view showing a use state in which an embroidery cloth is sandwiched between a receiving frame and a covering frame, and FIG. 4B is a cross-sectional view showing a state in which the embroidery cloth is pulled in the use state.

FIG. 5 is a sectional view showing a different example.

FIG. 6 is a sectional view showing a different example.

FIG. 7 is a sectional view showing a different example.

FIG. 8 is a perspective view showing the covering frame of FIG. 7;

FIG. 9 is a sectional view showing another different example of the covering frame.

FIGS. 10A, 10B, and 10C are end views each showing another example of the covering frame.

FIGS. 11A, 11B, and 11C are explanatory diagrams showing the positions of the lever members of the covering frame.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Embroidery frame for sewing machine 2, 3, 4, 5 Frame material 6 Receiving frame 7 Covering frame 8 Streak member 9 Stopper 11 Lever member 36 Fitting recess 45 Embroidery cloth

Claims (1)

(57) [Claims] 1. A frame member arranged so as to surround four circumferences of a space in which an embroidery cloth is placed is constituted by a receiving frame and a covering frame,
The receiving frame is provided with a bulging streak member on its upper surface along the longitudinal direction of the receiving frame, and the cover frame has a lower opening formed on its lower surface corresponding to the cross-sectional shape of the streak member. A fitting recess is provided, and lower ends of both side walls forming the fitting recess are formed so as to be elastically deformable in the near and far directions with respect to each other. For the sewing machine, the lower end portions are set to a size such that the embroidery cloth is clamped between the streak member by fitting the fitting concave portion of the covering frame to the streak member while the cover frame is placed. In the embroidery frame, a stopper is attached to the receiving frame at a position near the outside of the streak member, while a base of a lever member is fixed near the lower end of the outer side wall of the covering frame, and the lever member is The tip of the fitting recess was fitted to the streak member The upper end of the lever member contacts the stopper when the inner side wall of the covering frame is lifted up by the embroidery cloth, and the lower end of the outer side wall. An embroidery frame for a sewing machine, wherein the portion is configured to press an embroidery cloth against a streak member.