JP2018157994A - String having knot - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a string dispensing with positional matching between a string hole and a knot or a connection part, mountable easily, and excellent in appearance after being mounted.SOLUTION: A plurality of elastically deformable knots are arranged on both ends of a string, and a middle part of the string where the knots are not arrange is constituted of an elastically-deformable long elastic part, and an interval between a knot and a knot, and an interval between a knot and the long elastic part are connected by a connection part having a small diameter than the knot and the long elastic part.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a string having a hump that does not require a knot.

A string having an elastically deformable hump is conventionally known as a string that does not require a knot. Specifically, as shown in FIG. 4, it is composed of a hump portion 2 that can be elastically deformed in the axial direction by applying tension from the axial direction of the string 1, and a connecting portion 3 that connects the hump portions to each other. The two structures shown in Patent Documents 1 to 3 below are mainstream.

FIG. 5 is a perspective view in which a string having a hump portion 2 is applied to a shoelace. When used as a shoelace, the shoelace is inserted through a hole formed in the shoe. In the natural state where no tension is applied to the string, the diameter of the hump part 2 is larger than the string hole, but when the string is pulled strongly, the hump part elastically deforms and penetrates the string hole. Since 2 is restored to its natural state and is caught in the string hole, the string is not loosened by tightening. When putting on or taking off a shoe, the entire shoe also expands and changes due to the elastic deformation of the hump, so there is no need to tie or loosen the string. The connecting portion 3 is hardly elastically deformed like a normal shoelace.

As for the string which has the conventional hump part shown in patent documents 1-3, the hump part 2 from which all differ in the same shape or diameter is provided over the full length of string 1, and adjusts the position of hump part 2. The tightening degree is adjusted with.

Japanese Patent No. 3493002 Japanese Patent No. 5079926 Japanese Patent No. 5392519

  A conventional string having a hump part has the hump part 2 formed over the entire length of the string 1 as described above. Therefore, the position of the string hole must be the connecting part 3, and the alignment is troublesome. In addition, as shown in FIG. 2, many bumps 2 appear on the shoe, and there is a problem that it looks bad.

  In order to solve the above-described problems of the prior art, the present invention is a string having a hump portion that does not require a knot, and can be elastically deformed at both ends of the string, or both ends and the center of the string. A region where the hump portion is arranged, and the region where the hump portion is not arranged is composed of a long elastic portion that is elastically deformable and continuous along the axial direction of the string, Between the hump portion and the hump portion, between the hump portion and the long elastic portion, and between the long elastic portion and the long elastic portion, the hump portion and the long elastic portion. The long elastic part is connected by a connecting part having a smaller diameter, and the long elastic part is a long elastic part.

  According to the present invention having the above-described configuration, the long elastic portion having resistance to the lace hole can stop the lace at an arbitrary position, which facilitates wearing and is used as a lace. In this case, since most of the laces appearing on the shoe have no humps, the appearance is also clean, and it can be made the same as wearing a normal lace.

The figure for demonstrating typically the string which has a hump part concerning a first embodiment of the present invention. The figure for demonstrating typically the string which has a hump part concerning 2nd embodiment of this invention. The figure for demonstrating typically the string which has a hump part concerning 3rd embodiment of the present invention. The figure for demonstrating typically the string which has a hump part concerning 4th embodiment of the present invention. The perspective view which shows an example of the string which has the conventional hump part. The figure which shows the usage example which applied the string which has the conventional hump part to shoes.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, this invention is not limited to these embodiments at all, and can be implemented in various modes without departing from the scope of the invention.

  FIG. 1 is a schematic diagram for conceptually explaining a string having a hump according to the first embodiment of the present invention. The string 1 has a plurality of hump parts 2 having a spherical shape with the same diameter at right and left end parts (hump part area A), and an intermediate part is a circle continuous along the axial direction of the string 1. It consists of a columnar long elastic part 4, and each hump part 2 and the hump part 2 and the long elastic part 4 are connected by a cylindrical connecting part 3. Although FIG. 1 shows an example having three hump portions 2 in the hump portion region A, it is a schematic diagram to the last, and it is sufficient if there are about 3 to 8 left and right. Further, the length of the hump portion area A where the hump portion 2 is arranged is preferably about 20 to 40% of the total length of the string 1 in both the left and right sides. The length is preferably about 60 to 80% of the entire length of the string.

  The diameters of the hump portion 2 and the long elastic portion 4 are substantially the same. When the string is pulled from the left and right, the hump portion 2 and the long elastic portion 4 are elastically deformed in the axial direction, that is, extend in the length direction. When the diameter is reduced and the tension is released, the original shape is restored, and the connecting portion 3 is hardly elastically deformed. The diameter of the long elastic portion 4 is preferably substantially the same as the diameter of the hump portion 2 or in the range of about 0.8 to 1.2.

In the string according to the present embodiment, the hump portion 2, the connecting portion 3, and the long elastic portion 4 use the same elastic fiber material, and continuously knit the fiber material by a machine. The hump part 2 and the long elastic part 4 are knitted loosely so that the fiber material can be fully stretched and elastically deformed, and the connecting part 3 is knitted strongly and tightly with tension applied to the fiber material. Thus, it is manufactured so as not to extend in the axial direction (so as to hardly deform elastically). In addition, this manufacturing method is only an example, for example, in order to further strengthen the connecting portion 3, it may be impregnated with a synthetic resin adhesive and solidified, or can be manufactured by other methods.

  When the lace of this embodiment is used as a shoelace, the diameters of the hump portion 2, the connecting portion 3, and the long elastic portion 4 are appropriately determined in relation to the shoelace hole. For example, since the diameter of the lace hole of sneakers or athletic shoes is generally about 2 to 4 mm, it is desirable that the diameter of the hump portion 2 and the long elastic portion 4 is about 7 mm in the standard type lace. The hump part 2 and the long elastic part 4 are elastically deformed by the user pulling the string, and can pass through the shoelace hole. In addition, the diameter of the connection part 3 is a diameter smaller than a string hole.

  A case will be described in which the string according to the present embodiment is used as a shoelace and the user wears it on the shoe. The user passes the hump portion 2 and the long elastic portion 4 sequentially through the string hole by passing the left and right ends of the string through the string hole and pulling strongly against the frictional force with the string hole. At that time, since the long elastic portion 4 has a larger diameter than the string hole, a predetermined frictional force is generated between the long elastic portion 4 and the string hole due to the elastic deformation, and has a fixed fixing force. When all the laces are passed through the shoe holes so as to be in a desired state, the hump portions 2 are positioned before and after the uppermost lace hole so that they cannot be easily removed from the lace holes.

In the process of passing the string 1 through the string hole, it has been necessary in the prior art to pass the hump portions 2 one by one through the string hole and check one by one whether or not it is in the desired position. For example, when the position of one hump part 2 is shifted, the other hump part 2 that has already been passed through must be brought again to an appropriate position through the string hole, which requires a rather troublesome work. It was.

On the other hand, in the present invention, since the position is adjusted by the relationship between the long elastic portion 4 occupying most of the string 1 and the string hole, the user only needs to grasp and pull the long elastic portion 4 to perform the desired alignment. Therefore, it is possible to perform the installation work quite easily.

  FIG. 2 is a schematic diagram for conceptually explaining a string having a hump portion according to the second embodiment of the present invention. The point in which the string 1 of the second embodiment is different from the string 1 of the first embodiment is that the long elastic portion 4 is divided into two left and right via the connecting portion 3 at the center position of the string. .

Since the center position of the string is a part that does not pass through the string hole, the fixing function is unnecessary, and the user can easily recognize the center position of the string 1 from the left and right division positions when the string 1 is attached to the shoe. The stringing work for adjusting the left and right lengths can be performed easily. Other structures are the same as in the first embodiment.

  FIG. 3 is a schematic diagram for conceptually explaining a string having a hump portion according to the third embodiment of the present invention. The point that the string 1 of the third embodiment is different from the string 1 of the first and second embodiments is that the diameter of the hump portion 2 is composed of two types, a large diameter and a small diameter.

When used as a shoelace, as shown in FIG. 5, the knot portion 2 at the tip of the strap protrudes greatly from the strap hole, and if it is a normal size shoe, it does not perform the fixing function, so it passes through the strap hole. For the purpose of reducing the load at the time of wearing, some of the head portions 2-1 have a small diameter, and the portion of the head portion 2-2 that performs a fixing function with the string hole has a large diameter. . In the present embodiment, it is desirable that the diameter of the long elastic part 4 is substantially the same as the diameter of the large-diameter hump part 2-2 or in the range of about 0.8 to 1.2.

Note that even the small-diameter hump portion 2-1 has a larger diameter than the string hole and has a fixed fixing force that is smaller than the large-diameter hump portion 2-2. This prevents it from coming out. For example, when a very large shoe or a person with an abnormally high instep is used, the last string hole can be fixed by the small-diameter hump portion 2-1.

In the present embodiment, the long elastic portion 4 may be divided into two at the center position, as in the second embodiment, and the diameter of the hump portion 2 is not limited to two types of large and small. Three or more diameters may be used. Other structures are the same as in the first embodiment.

FIG. 4 is a schematic diagram for conceptually explaining a string having a hump portion according to the fourth embodiment of the present invention. The string 1 of the fourth embodiment is different from the strings 1 of the first, second, and third embodiments in that the hump part region where the hump part 2 is arranged is the center part together with the left and right end parts of the string 1. It is a point that is also arranged.

When the string 1 of this embodiment is used as a shoelace, the toe side and instep side string holes of the shoe are fixed between the hump parts and the hump parts, and the other string hole is the long elastic part 4. It is fixed by friction with. That is, only the toe side and the instep side of the shoe to be firmly fixed are fixed between the hump parts and the hump parts, and the other parts are fixed by the long elastic part 4.

In the present embodiment, the length of the hump region A where the hump portion 2 is arranged is preferably about 40 to 60% of the total length of the string 1 in total of both ends and the center. The length of the elastic portion 4 is preferably about 40 to 60% of the entire length of the string. Other structures are the same as those in the first embodiment.

  In each of the above embodiments, the hump portion 2 has been described as a sphere, and the connecting portion 3 and the long elastic portion 4 are all cylindrical. However, the shape of the hump portion 1 is not limited to a sphere, but a spindle shape or a circle. A columnar shape, a polygonal columnar shape, an elliptical cone shape, or the like may be used, and the shapes of the connecting portion 3 and the long elastic portion 4 are not limited to a cylindrical shape, and may be an elliptical column, a polygonal column, or the like.

  Moreover, the whole string 1 including the hump part 2, the connection part 3, and the elongate elastic part 4 may be a flat shape. In that case, in a plan view, the hump portion 1 has a circular shape, a spindle shape, a quadrangular shape, an elliptical shape, or the like, and the connecting portion 3 and the long elastic portion 4 have a quadrangular shape (rectangular shape).

  As described above, according to the present invention, since the long elastic portion 4 is fixed by friction with many string holes, the string can be fixed at an arbitrary position, as in the prior art, There is no need to adjust the position of the hump part 2 and the connecting part 3 in relation to the string hole. Moreover, although the long elastic part 4 is a little thick compared with a normal shoelace, since it looks the same as a normal shoelace, it can also give the appearance a clean appearance.

  In addition, although this specification demonstrated the case where the string 1 was used as a shoelace, it is applicable not only to a shoelace but to all the strings.

DESCRIPTION OF SYMBOLS 1 String 2 Hump part 3 Connection part 4 Long long elastic part A Hump part area

Claims (16)

A string having a hump that does not require a knot,
At the both end portions of the string, or at both end portions and the central portion of the string, a hump portion region where a plurality of the elastically deformable hump portions are arranged,
The region where the hump is not arranged is composed of a long elastic portion that is elastically deformable and continuous along the axial direction of the string,
Between the hump part and the hump part, between the hump part and the long elastic part, and between the long elastic part and the long elastic part, the hump part and the long part. Connected by a connecting part having a smaller diameter than the elastic part,
A string having a hump part characterized by that.   The said connection part does not elastically deform substantially, The string which has a hump part of Claim 1 characterized by the above-mentioned.   When the said hump part area | region is formed only in the both ends of the said string, the said elongate elastic part is divided | segmented into two right and left by the center position of a string, The Claim 1 or 2 characterized by the above-mentioned. A string having the described hump.   The string having a hump according to any one of claims 1 to 3, wherein the diameter of the hump is about 7 mm, and the diameter of the long elastic portion is about 5 to 9 mm.   The string having a hump according to any one of claims 1 to 3, wherein the diameter of the long elastic portion is 0.8 to 1.2 times the diameter of the hump. .   The said hump part is comprised from the several hump part from which a diameter differs, The said elongate elastic part is substantially the same diameter as the largest hump part, The any one of Claim 1 thru | or 3 characterized by the above-mentioned. A string having the hump described in the item.   The string having a hump part according to claim 6, wherein the diameter of the long elastic part is 0.8 to 1.2 times the diameter of the hump part having the maximum diameter.   8. The hump portion according to claim 1, wherein the hump portion has a spherical shape, a spindle shape, a columnar shape, a polygonal column shape, an elliptical cone shape, or a combination thereof. With string.   The string having a hump according to any one of claims 1 to 8, wherein the long elastic portion has a columnar shape, an elliptical columnar shape, or a polygonal columnar shape.   The string having the hump portion is a flat shape as a whole including the hump portion, the long elastic portion, and the connecting portion, according to any one of claims 1 to 7. A string having a hump.   The flat-shaped hump portion is circular, spindle-shaped, quadrangular, elliptical, or a combination thereof in plan view, and the flat-shaped connecting portion and the long elastic portion are quadrangular in plan view. The string having the hump portion according to claim 10.   When the hump part region is formed only at both end portions of the string, the length of the hump part area where the hump part is arranged is 20 to 40% of the total length of the whole string on both the left and right sides. The string having a hump portion according to any one of claims 1 to 11, wherein the cord has a hump portion.   The length of the long elastic part is 60 to 80% of the length of the whole string when the hump part region is formed only at both ends of the string. 11. A string having the hump described in any one of 11 above.   When the hump region is formed at both end portions and the center portion of the string, the total length of the hump region where the hump portion is arranged is 40 to 60% of the entire length of the string. The string having a hump portion according to any one of claims 1 and 2, and 4 to 11.   The length of the long elastic part is 40 to 60% of the length of the whole string when the hump part region is formed at both ends and the center part of the string. The string which has a hump part of any one of 1 or 2, 4 thru | or 11. The string having the hump portion according to any one of claims 1 to 15, wherein the hump portion, the connection portion, and the long elastic portion are continuously formed of the same material. .