JP3072607U - Bobbin - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To easily take out and store the tip of a sewing thread wound around a bobbin. An annular groove (5) formed on a concentric axis of a main body (2) between an outer periphery of an end face of a flange (2b) and a minimum diameter cylindrical partition (3) of the main body (2) is elastically connected to an annular convex part (12) of a lid member (10). The lid member 1 having the tapered surface 11a formed on the outer peripheral side.
A locking portion 15 is formed between the main body 2 and the flange portion 2b, and the leading end of the sewing thread wound around the main body 2 is repeatedly clamped by the locking portion 15 between the main body 2 and the lid member 10. Can be. Therefore, the end of the sewing thread can be fixed.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a bobbin, and more particularly to a bobbin for winding a sewing thread and a snap bobbin having a thread stopping function at an end thereof.

[0002]

[Prior art]

 Generally, in order to supply a consumer with a sewing thread made of a natural fiber or a synthetic fiber, the sewing thread is wound around a plastic bobbin 51 and manufactured and sold. As shown in FIGS. 4 and 5, a plurality of hollow portions are formed inside the plastic bobbin 51 in order to reduce material costs.

FIG. 4 is a perspective view showing an example of a conventional bobbin, and FIG. 5 is a side view of the bobbin of FIG.

[0004] In FIGS. 4 and 5, the bobbin bobbin 51 has sufficient strength and can be easily formed by injection molding even if it has a hollow portion therein. It has a configuration.

[0005] The bobbin 51 has a cylindrical portion 52a around which a sewing thread can be freely wound, and a flange portion (flange portion) 52b having a flange shape for restricting a range where the sewing thread is wound around both ends of the cylindrical portion 52a. A minimum diameter cylindrical partition wall 53 formed at the center of the main body portion 52, and radially formed from the outer peripheral surface of the minimum diameter cylindrical partition wall 53 toward the outer peripheral side of the main body portion 52. And a plurality of radiation partitions 54. With this configuration, a plurality of hollow portions surrounded by the outer peripheral surface of the minimum diameter cylindrical partition wall 53 of the main body portion 52 and the plurality of radial partition walls 54 are formed in the main body portion 52, and the plurality of hollow portions are formed by molding. The bobbin 51 is released from any side of the bobbin 51 due to the processing condition restriction, and a plurality of openings are formed on the side surface of the bobbin 51. A label 55 indicating the type and thickness of the sewing thread wound on the main body 52 is usually attached to the side surface of the bobbin 51.

[0006]

[Problems to be solved by the invention]

 The bobbin bobbin 51 manufactured and sold by winding a sewing thread on the outer peripheral surface of the cylindrical portion 52a of the main body 52 described above has a method in which a notch is formed in a flange portion, and the end of the sewing thread is cut into the notch. Had been taken. However, in this method, when the bobbin bobbin is wound at a high speed, or when the sewing thread is drawn out of the bobbin and sewing is performed, the sewing thread is cut when the sewing thread comes into contact with the notch of the flange portion. There was a possibility.

Therefore, an object of the present invention is to provide a bobbin that can easily take out and store the leading end of a sewing thread wound around the bobbin.

[0008]

[Means for Solving the Problems]

 The bobbin according to the first aspect of the present invention is formed so as to have a main body including a cylindrical portion around which a sewing thread can be wound, a flange formed at both ends of the cylindrical portion, and a concentric axis with the cylindrical portion of the main body. A minimum-diameter cylindrical partition having a minimum diameter having a through-hole; an even-numbered radial partition formed radially from the outer circumference of the minimum-diameter cylindrical partition; an outer circumference of an end face of the flange portion and the minimum-diameter cylindrical partition of the main body; An annular groove formed on both sides on a concentric axis of the main body, an annular protrusion elastically coupled to the annular groove, and a through hole corresponding to the through hole of the minimum diameter cylindrical partition wall. A lid member having a hole and having a diameter substantially the same as that of the flange portion and having a tapered surface formed on an outer peripheral side.

According to this configuration, since the annular groove formed on the concentric axis of the main body and the annular convex portion of the lid member are elastically coupled, the side surface of the main body portion is closed by the lid member, and the cylindrical portion of the main body portion is closed. The leading end (free end) of the sewing thread wound around can be repeatedly clamped in the gap (locking portion) between the main body and the lid member. Further, the side surface of the main body is closed by a lid member, and a label indicating the type and thickness of the sewing thread wound on the main body can be attached to the flat surface of the lid member.

Needless to say, the minimum diameter cylindrical partition having a minimum diameter having a through hole formed concentrically with the cylindrical portion of the main body, and the even number of radial partitions formed radially from the outer periphery of the minimum diameter cylindrical partition are provided. Since the mechanical strength of the main body is maintained, it can be used as a normal commercially available bobbin without the cover member attached.

[0011]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described. First Embodiment FIG. 1 is a perspective view showing a bobbin according to a first embodiment of the present invention, FIG. 2 is an exploded perspective view showing a bobbin according to the first embodiment of the present invention, and FIG. 3 is an embodiment of the present invention. It is a principal part longitudinal cross-sectional view which shows the bobbin bobbin concerning form 1 of FIG.

As shown in FIGS. 1 to 3, a bobbin 1 according to a first embodiment has a main body 2 on which a sewing thread can be wound around an outer peripheral surface thereof, and a detachable lid member on a side surface of the main body 2. 3

As shown in FIGS. 1 to 3, the main body 2 is capable of winding a sewing thread made of a natural fiber such as cotton, silk, hemp or a synthetic fiber such as polyester, nylon and acrylic on the outer peripheral surface. A cylindrical portion 2a and a flange portion 2b having a flange shape for limiting a range in which a sewing thread is wound around both ends of the cylindrical portion 2a are formed.

When viewed from a side surface of the main body 2, a through hole 3 a is provided at a center axis position thereof, and a minimum diameter cylindrical partition wall 3 formed continuously in a region from one end to the other end of the main body 2. And six radial partitions 4 formed radially from the outer peripheral surface of the minimum diameter cylindrical partition 3 toward the outer peripheral surface of the main body 2.

On the side surface of the main body 2, between the radial partition 4 located inside a predetermined distance from the outer periphery of the flange portion 2 b, and concentrically with the smallest diameter cylindrical bulkhead 3 of the main body 2, an annular shape is formed. A groove 5 is formed. That is, the annular groove 5 is formed on the concentric axis of the main body 2 between the outer periphery of the end face of the flange 2 b and the minimum diameter cylindrical partition 3 of the main body 2.

The lid member 10 has a disk-shaped flat plate portion 11 whose outer shape substantially matches the outer shape of the side surface of the main body 2, and one side of the flat plate portion 11 has an outer peripheral edge of the flat plate portion 11. An annular projection 12 is formed in the annular groove 5 of the main body 2 so as to be resiliently attached to the annular groove 5 under the condition that the outer diameter substantially coincides with the outer circumference of the flange 2 b of the main body 2. In a range outside the annular convex portion 12 on the surface of the flat plate portion 11 on which the annular convex portion 12 is formed, the flat plate portion 11 and the main body portion are mounted in a state where the annular convex portion 12 is mounted in the annular groove 5 of the main body portion 2. A tapered surface 11a is formed so as to form a locking portion 15 formed of a gap capable of holding the sewing thread end B between itself and the second side surface. In the center of the flat plate portion 11 of the lid member 10, a through hole 13 communicating with the through hole 3a of the main body 2 is formed. The through hole 3a of the main body 2 and the through hole 13 of the lid member 10 are used when the bobbin 41 is supported by the sewing machine and when the sewing thread A is wound.

As described above, the main body portion 2 including the cylindrical portion 2a around which the sewing thread A can be freely wound and the flange portions 2b formed at both ends of the cylindrical portion 2a, and concentric with the cylindrical portion 2a of the main body portion 2 A minimum diameter cylindrical partition wall 3 having a through hole 3a formed in a shaft, a minimum diameter cylindrical partition wall 3, an even number of radial partition walls 4 formed radially from the outer circumference of the minimum diameter cylindrical partition wall 3, an outer circumference of the end face of the flange portion 2b and a main body portion; An annular groove 5 formed on the concentric axis of the main body portion 2 and an annular convex portion 12 elastically coupled to the annular groove 5, and having the minimum diameter cylindrical partition 3. And a lid member 10 having substantially the same diameter as the flange portion 2b having the through hole 13 corresponding to the through hole 3a, and having a tapered surface 11a formed on the outer peripheral side.

Therefore, according to the configuration of the bobbin 1 according to the first embodiment, the bobbin 1 is formed on the concentric axis of the main body 2 between the outer periphery of the end face of the flange 2 b and the cylindrical partition 3 having the minimum diameter. The annular groove portion 5 elastically couples with the annular convex portion 12 of the lid member 10, so that a locking portion 15 is formed between the flange member 2b and the lid member 10 having the tapered surface 11a formed on the outer peripheral side, and the main body portion is formed. The sewing thread end A of the sewing thread A wound around 2 can be repeatedly sandwiched between the locking portions 15 between the main body 2 and the lid member 10. For example, in a case where the sewing thread A is stored in a state where it is not used, the sewing thread A can be prevented from being separated from the main body 2 and entangled. Further, the side surface of the main body 2 is closed by the lid member 10, and a label 55 indicating the type and thickness of the sewing thread A wound on the main body 2 is provided on the side surface of the main body 2, that is, the main body 2. Since the label 55 can be attached to the lid member 10 attached to the part 2, it is possible to prevent the label 55 from being deformed in a concave or convex shape or peeled off. In particular, in addition to the effect of preventing deformation and peeling of the label 55, the effect of preventing the sewing thread A from being entangled during storage is exerted.

The minimum diameter cylindrical partition wall 3 and the radial partition wall 4 each have a shape that is continuous from one end to the other end of the main body 2, so that the whole can be integrally formed by injection molding.

Further, the bobbin 1 according to the first embodiment can prevent the label 55 from peeling off, and the minimum diameter cylindrical partition wall 3 and the radial partition wall 4 each have a shape from one end to the other end of the main body 2. The shape is continuous, and the mechanical structure can be firm.

The main body 2 includes a cylindrical portion 2 a and a flange portion 2 b, a minimum-diameter cylindrical partition wall 3 having a through hole 3 a formed concentrically with the cylindrical portion 2 a and the flange portion 2 b, and a minimum diameter. The even number of radial diaphragm walls 4 formed radially from the outer periphery of the cylindrical partition wall 3 maintain the mechanical strength of the main body portion 2. Can be used as That is, the configuration of the main body 2, which is composed of the cylindrical portion 2a and the flange portion 2b, the minimum-diameter cylindrical partition wall 3, and the radiation partition wall 4 according to the embodiment of the present invention, can be used as a commercially available bobbin bobbin. By attaching the material 10, it can function as a snap bobbin with a thread stop mechanism.

[0022]

[Effect of the invention]

 As described above, the bobbin according to claim 1 has a main body including a cylindrical portion around which a sewing thread can be wound, flanges formed at both ends of the cylindrical portion, and a cylindrical portion of the main body. A minimum-diameter cylindrical partition having a through hole formed in a concentric axis, a radial partition formed of an even number radially formed from an outer periphery of the minimum-diameter cylindrical partition, an outer periphery of the flange end face and the main body portion. An annular groove formed on both side surfaces on a concentric axis of the main body, an annular protrusion elastically coupled to the annular groove, and penetrating through the minimum diameter cylindrical partition; A cover member having a through hole corresponding to the hole, and having a diameter substantially equal to that of the flange portion and having a tapered surface formed on an outer peripheral side.

Therefore, since the minimum diameter cylindrical partition and the radial partition are both continuous from one end of the main body to the other end, the whole can be integrally formed by injection molding and can be manufactured at low cost. Also, since the free end of the sewing thread wound around the main body can be repeatedly sandwiched in a gap as a locking portion between the main body and the lid member, the sewing thread is stored in a state where it is left unused. In this case, the sewing thread can be prevented from tangling away from the main body. The side surface of the main body is closed with a cover member, and a label indicating the type and thickness of the sewing thread wound on the main body can be attached to a flat surface without an opening. It can be prevented from being deformed into a convex shape or peeling off.

In particular, the configuration of the present invention comprising the cylindrical portion and the flange portion, the minimum diameter cylindrical partition wall, and the radial partition wall can be used as a commercially available bobbin, and a lid member can be attached according to needs. Thereby, it can function as a snap bobbin with a thread stop mechanism.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a bobbin according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view showing the bobbin according to the first embodiment of the present invention.

FIG. 3 is a vertical sectional view showing a main part of the bobbin according to the first embodiment of the present invention;

FIG. 4 is a perspective view showing an example of a conventional bobbin.

FIG. 5 is a side view of the bobbin of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pin bobbin 2 Main part 2a Cylindrical part 2b Flange part 3 Minimum diameter cylindrical partition 3a Through-hole 4 Radiation partition 10 Cover member 12 Annular convex part 11a Tapered surface 15 Locking part

Claims (1)

[Utility model registration claims] 1. A cylindrical portion around which a sewing thread can be freely wound,
A main body portion comprising flange portions formed at both ends of the cylindrical portion, a minimum-diameter cylindrical partition wall having a minimum diameter having a through hole formed concentrically with the cylindrical portion of the main body portion, and an outer periphery of the minimum-diameter cylindrical partition wall. Radial partition walls formed of an even number radially formed, and between the outer periphery of the end face of the flange portion and the minimum diameter cylindrical partition wall of the main body portion, annular grooves formed on both side surfaces on the concentric axis of the main body portion, A lid having an annular projection elastically coupled to the annular groove, and having a through-hole corresponding to the through-hole of the minimum-diameter cylindrical partition, and having a taper surface on the outer peripheral side having substantially the same diameter as the flange; A bobbin provided with a member.